aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/Makefile.in4
-rw-r--r--erts/emulator/beam/beam_bif_load.c763
-rw-r--r--erts/emulator/beam/beam_bp.c2002
-rw-r--r--erts/emulator/beam/beam_bp.h233
-rw-r--r--erts/emulator/beam/beam_catches.c136
-rw-r--r--erts/emulator/beam/beam_catches.h11
-rw-r--r--erts/emulator/beam/beam_debug.c30
-rw-r--r--erts/emulator/beam/beam_emu.c326
-rw-r--r--erts/emulator/beam/beam_load.c586
-rw-r--r--erts/emulator/beam/beam_load.h49
-rw-r--r--erts/emulator/beam/beam_ranges.c349
-rw-r--r--erts/emulator/beam/bif.c144
-rw-r--r--erts/emulator/beam/bif.h18
-rw-r--r--erts/emulator/beam/bif.tab9
-rw-r--r--erts/emulator/beam/break.c145
-rw-r--r--erts/emulator/beam/code_ix.c166
-rw-r--r--erts/emulator/beam/code_ix.h141
-rw-r--r--erts/emulator/beam/dist.c43
-rw-r--r--erts/emulator/beam/erl_alloc.c8
-rw-r--r--erts/emulator/beam/erl_alloc.types5
-rw-r--r--erts/emulator/beam/erl_alloc_util.c11
-rw-r--r--erts/emulator/beam/erl_bif_binary.c69
-rw-r--r--erts/emulator/beam/erl_bif_chksum.c13
-rw-r--r--erts/emulator/beam/erl_bif_ddll.c12
-rwxr-xr-xerts/emulator/beam/erl_bif_info.c22
-rw-r--r--erts/emulator/beam/erl_bif_re.c11
-rw-r--r--erts/emulator/beam/erl_bif_timer.c4
-rw-r--r--erts/emulator/beam/erl_bif_trace.c617
-rw-r--r--erts/emulator/beam/erl_cpu_topology.c5
-rw-r--r--erts/emulator/beam/erl_db.c64
-rw-r--r--erts/emulator/beam/erl_db_tree.c12
-rw-r--r--erts/emulator/beam/erl_db_util.h2
-rw-r--r--erts/emulator/beam/erl_fun.h2
-rw-r--r--erts/emulator/beam/erl_gc.c29
-rw-r--r--erts/emulator/beam/erl_init.c72
-rw-r--r--erts/emulator/beam/erl_lock_check.c6
-rw-r--r--erts/emulator/beam/erl_message.c238
-rw-r--r--erts/emulator/beam/erl_nif.c69
-rw-r--r--erts/emulator/beam/erl_node_container_utils.h43
-rw-r--r--erts/emulator/beam/erl_node_tables.c38
-rw-r--r--erts/emulator/beam/erl_port_task.c224
-rw-r--r--erts/emulator/beam/erl_port_task.h13
-rw-r--r--erts/emulator/beam/erl_printf_term.c5
-rw-r--r--erts/emulator/beam/erl_process.c3860
-rw-r--r--erts/emulator/beam/erl_process.h503
-rw-r--r--erts/emulator/beam/erl_process_dump.c13
-rw-r--r--erts/emulator/beam/erl_process_lock.c454
-rw-r--r--erts/emulator/beam/erl_process_lock.h417
-rw-r--r--erts/emulator/beam/erl_threads.h31
-rw-r--r--erts/emulator/beam/erl_time.h4
-rw-r--r--erts/emulator/beam/erl_time_sup.c85
-rw-r--r--erts/emulator/beam/erl_trace.c374
-rw-r--r--erts/emulator/beam/erl_unicode.c79
-rw-r--r--erts/emulator/beam/export.c354
-rw-r--r--erts/emulator/beam/export.h48
-rw-r--r--erts/emulator/beam/external.c2
-rwxr-xr-xerts/emulator/beam/global.h251
-rw-r--r--erts/emulator/beam/index.c23
-rw-r--r--erts/emulator/beam/index.h14
-rw-r--r--erts/emulator/beam/io.c83
-rw-r--r--erts/emulator/beam/module.c159
-rw-r--r--erts/emulator/beam/module.h64
-rw-r--r--erts/emulator/beam/ops.tab18
-rw-r--r--erts/emulator/beam/register.c24
-rw-r--r--erts/emulator/beam/sys.h45
-rw-r--r--erts/emulator/beam/utils.c310
-rw-r--r--erts/emulator/drivers/common/inet_drv.c83
-rw-r--r--erts/emulator/hipe/hipe_bif0.c8
-rw-r--r--erts/emulator/hipe/hipe_bif2.c7
-rw-r--r--erts/emulator/hipe/hipe_bif2.tab1
-rw-r--r--erts/emulator/hipe/hipe_bif_list.m41
-rw-r--r--erts/emulator/hipe/hipe_debug.c2
-rw-r--r--erts/emulator/hipe/hipe_mode_switch.c10
-rw-r--r--erts/emulator/hipe/hipe_native_bif.h3
-rw-r--r--erts/emulator/hipe/hipe_primops.h1
-rw-r--r--erts/emulator/hipe/hipe_stack.c10
-rw-r--r--erts/emulator/hipe/hipe_stack.h4
-rw-r--r--erts/emulator/hipe/hipe_x86_gc.h5
-rw-r--r--erts/emulator/hipe/hipe_x86_glue.h3
-rw-r--r--erts/emulator/sys/common/erl_check_io.c5
-rw-r--r--erts/emulator/sys/common/erl_poll.c32
-rw-r--r--erts/emulator/sys/common/erl_poll.h2
-rw-r--r--erts/emulator/sys/win32/erl_win_sys.h5
-rw-r--r--erts/emulator/sys/win32/sys_time.c6
-rw-r--r--erts/emulator/test/Makefile1
-rw-r--r--erts/emulator/test/bif_SUITE.erl283
-rw-r--r--erts/emulator/test/call_trace_SUITE.erl133
-rw-r--r--erts/emulator/test/call_trace_SUITE_data/my_upgrade_test.erl26
-rw-r--r--erts/emulator/test/code_parallel_load_SUITE.erl198
-rw-r--r--erts/emulator/test/mtx_SUITE_data/Makefile.src7
-rw-r--r--erts/emulator/test/trace_local_SUITE.erl53
-rwxr-xr-xerts/emulator/utils/make_tables2
92 files changed, 8818 insertions, 6037 deletions
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index 985ef72517..e20e38d61b 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -709,7 +709,9 @@ EMU_OBJS = \
$(OBJDIR)/beam_emu.o $(OBJDIR)/beam_opcodes.o \
$(OBJDIR)/beam_load.o $(OBJDIR)/beam_bif_load.o \
$(OBJDIR)/beam_debug.o $(OBJDIR)/beam_bp.o \
- $(OBJDIR)/beam_catches.o
+ $(OBJDIR)/beam_catches.o \
+ $(OBJDIR)/code_ix.o \
+ $(OBJDIR)/beam_ranges.o
RUN_OBJS = \
$(OBJDIR)/erl_pbifs.o $(OBJDIR)/benchmark.o \
diff --git a/erts/emulator/beam/beam_bif_load.c b/erts/emulator/beam/beam_bif_load.c
index ada2d152b7..94f8edf165 100644
--- a/erts/emulator/beam/beam_bif_load.c
+++ b/erts/emulator/beam/beam_bif_load.c
@@ -37,25 +37,83 @@
static void set_default_trace_pattern(Eterm module);
static Eterm check_process_code(Process* rp, Module* modp);
-static void delete_code(Process *c_p, ErtsProcLocks c_p_locks, Module* modp);
-static void delete_export_references(Eterm module);
-static int purge_module(int module);
+static void delete_code(Module* modp);
static void decrement_refc(BeamInstr* code);
static int is_native(BeamInstr* code);
static int any_heap_ref_ptrs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size);
static int any_heap_refs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size);
-static void remove_from_address_table(BeamInstr* code);
-Eterm
-load_module_2(BIF_ALIST_2)
+
+
+BIF_RETTYPE code_is_module_native_1(BIF_ALIST_1)
{
- Eterm reason;
- Eterm* hp;
- int sz;
- byte* code;
+ Module* modp;
Eterm res;
+ ErtsCodeIndex code_ix;
+
+ if (is_not_atom(BIF_ARG_1)) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
+ code_ix = erts_active_code_ix();
+ if ((modp = erts_get_module(BIF_ARG_1, code_ix)) == NULL) {
+ return am_undefined;
+ }
+ erts_rlock_old_code(code_ix);
+ res = ((modp->curr.code && is_native(modp->curr.code)) ||
+ (modp->old.code != 0 && is_native(modp->old.code))) ?
+ am_true : am_false;
+ erts_runlock_old_code(code_ix);
+ return res;
+}
+
+BIF_RETTYPE code_make_stub_module_3(BIF_ALIST_3)
+{
+ Module* modp;
+ Eterm res;
+
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD3(bif_export[BIF_code_make_stub_module_3],
+ BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
+ }
+
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+
+ modp = erts_get_module(BIF_ARG_1, erts_active_code_ix());
+
+ if (modp && modp->curr.num_breakpoints > 0) {
+ ASSERT(modp->curr.code != NULL);
+ erts_clear_module_break(modp);
+ ASSERT(modp->curr.num_breakpoints == 0);
+ }
+
+ erts_start_staging_code_ix();
+
+ res = erts_make_stub_module(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
+
+ if (res == BIF_ARG_1) {
+ erts_end_staging_code_ix();
+ erts_commit_staging_code_ix();
+ }
+ else {
+ erts_abort_staging_code_ix();
+ }
+ erts_smp_thr_progress_unblock();
+ erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_release_code_write_permission();
+ return res;
+}
+
+BIF_RETTYPE
+prepare_loading_2(BIF_ALIST_2)
+{
byte* temp_alloc = NULL;
- struct LoaderState* stp;
+ byte* code;
+ Uint sz;
+ Binary* magic;
+ Eterm reason;
+ Eterm* hp;
+ Eterm res;
if (is_not_atom(BIF_ARG_1)) {
error:
@@ -65,108 +123,277 @@ load_module_2(BIF_ALIST_2)
if ((code = erts_get_aligned_binary_bytes(BIF_ARG_2, &temp_alloc)) == NULL) {
goto error;
}
- hp = HAlloc(BIF_P, 3);
- /*
- * Read the BEAM file and prepare the module for loading.
- */
- stp = erts_alloc_loader_state();
+ magic = erts_alloc_loader_state();
sz = binary_size(BIF_ARG_2);
- reason = erts_prepare_loading(stp, BIF_P, BIF_P->group_leader,
+ reason = erts_prepare_loading(magic, BIF_P, BIF_P->group_leader,
&BIF_ARG_1, code, sz);
erts_free_aligned_binary_bytes(temp_alloc);
if (reason != NIL) {
+ hp = HAlloc(BIF_P, 3);
res = TUPLE2(hp, am_error, reason);
BIF_RET(res);
}
+ hp = HAlloc(BIF_P, PROC_BIN_SIZE);
+ res = erts_mk_magic_binary_term(&hp, &MSO(BIF_P), magic);
+ erts_refc_dec(&magic->refc, 1);
+ BIF_RET(res);
+}
- /*
- * Stop all other processes and finish the loading of the module.
- */
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
+struct m {
+ Binary* code;
+ Eterm module;
+ Module* modp;
+ Uint exception;
+};
- reason = erts_finish_loading(stp, BIF_P, 0, &BIF_ARG_1);
- if (reason != NIL) {
- res = TUPLE2(hp, am_error, reason);
- } else {
- set_default_trace_pattern(BIF_ARG_1);
- res = TUPLE2(hp, am_module, BIF_ARG_1);
- }
+static Eterm staging_epilogue(Process* c_p, int, Eterm res, int, struct m*, int);
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
- BIF_RET(res);
+static Eterm
+exception_list(Process* p, Eterm tag, struct m* mp, Sint exceptions)
+{
+ Eterm* hp = HAlloc(p, 3 + 2*exceptions);
+ Eterm res = NIL;
+
+ mp += exceptions - 1;
+ while (exceptions > 0) {
+ if (mp->exception) {
+ res = CONS(hp, mp->module, res);
+ hp += 2;
+ exceptions--;
+ }
+ mp--;
+ }
+ return TUPLE2(hp, tag, res);
}
-BIF_RETTYPE purge_module_1(BIF_ALIST_1)
+
+BIF_RETTYPE
+finish_loading_1(BIF_ALIST_1)
{
- int purge_res;
+ int i;
+ int n;
+ struct m* p = NULL;
+ Uint exceptions;
+ Eterm res;
+ int is_blocking = 0;
+ int do_commit = 0;
- if (is_not_atom(BIF_ARG_1)) {
- BIF_ERROR(BIF_P, BADARG);
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD1(bif_export[BIF_finish_loading_1], BIF_P, BIF_ARG_1);
}
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
+ /*
+ * Validate the argument before we start loading; it must be a
+ * proper list where each element is a magic binary containing
+ * prepared (not previously loaded) code.
+ *
+ * First count the number of elements and allocate an array
+ * to keep the elements in.
+ */
- erts_export_consolidate();
- purge_res = purge_module(atom_val(BIF_ARG_1));
+ n = list_length(BIF_ARG_1);
+ if (n == -1) {
+ ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
+ goto done;
+ }
+ p = erts_alloc(ERTS_ALC_T_LOADER_TMP, n*sizeof(struct m));
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ /*
+ * We now know that the argument is a proper list. Validate
+ * and collect the binaries into the array.
+ */
- if (purge_res < 0) {
- BIF_ERROR(BIF_P, BADARG);
+ for (i = 0; i < n; i++) {
+ Eterm* cons = list_val(BIF_ARG_1);
+ Eterm term = CAR(cons);
+ ProcBin* pb;
+
+ if (!ERTS_TERM_IS_MAGIC_BINARY(term)) {
+ ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
+ goto done;
+ }
+ pb = (ProcBin*) binary_val(term);
+ p[i].code = pb->val;
+ p[i].module = erts_module_for_prepared_code(p[i].code);
+ if (p[i].module == NIL) {
+ ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
+ goto done;
+ }
+ BIF_ARG_1 = CDR(cons);
}
- BIF_RET(am_true);
-}
-BIF_RETTYPE code_is_module_native_1(BIF_ALIST_1)
-{
- Module* modp;
+ /*
+ * Since we cannot handle atomic loading of a group of modules
+ * if one or more of them uses on_load, we will only allow one
+ * element in the list. This limitation is intended to be
+ * lifted in the future.
+ */
- if (is_not_atom(BIF_ARG_1)) {
- BIF_ERROR(BIF_P, BADARG);
+ if (n > 1) {
+ ERTS_BIF_PREP_ERROR(res, BIF_P, SYSTEM_LIMIT);
+ goto done;
}
- if ((modp = erts_get_module(BIF_ARG_1)) == NULL) {
- return am_undefined;
+
+ /*
+ * All types are correct. There cannot be a BADARG from now on.
+ * Before we can start loading, we must check whether any of
+ * the modules already has old code. To avoid a race, we must
+ * not allow other process to initiate a code loading operation
+ * from now on.
+ */
+
+ res = am_ok;
+ erts_start_staging_code_ix();
+
+ for (i = 0; i < n; i++) {
+ p[i].modp = erts_put_module(p[i].module);
+ }
+ for (i = 0; i < n; i++) {
+ if (p[i].modp->curr.num_breakpoints > 0 ||
+ p[i].modp->curr.num_traced_exports > 0 ||
+ erts_is_default_trace_enabled()) {
+ /* tracing involved, fallback with thread blocking */
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+ is_blocking = 1;
+ break;
+ }
}
- return ((modp->code && is_native(modp->code)) ||
- (modp->old_code != 0 && is_native(modp->old_code))) ?
- am_true : am_false;
-}
-BIF_RETTYPE code_make_stub_module_3(BIF_ALIST_3)
-{
- Eterm res;
+ if (is_blocking) {
+ for (i = 0; i < n; i++) {
+ if (p[i].modp->curr.num_breakpoints) {
+ erts_clear_module_break(p[i].modp);
+ ASSERT(p[i].modp->curr.num_breakpoints == 0);
+ }
+ }
+ }
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
+ exceptions = 0;
+ for (i = 0; i < n; i++) {
+ p[i].exception = 0;
+ if (p[i].modp->curr.code && p[i].modp->old.code) {
+ p[i].exception = 1;
+ exceptions++;
+ }
+ }
- erts_export_consolidate();
- res = erts_make_stub_module(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
+ if (exceptions) {
+ res = exception_list(BIF_P, am_not_purged, p, exceptions);
+ } else {
+ /*
+ * Now we can load all code. This can't fail.
+ */
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
- return res;
+ exceptions = 0;
+ for (i = 0; i < n; i++) {
+ Eterm mod;
+ Eterm retval;
+
+ erts_refc_inc(&p[i].code->refc, 1);
+ retval = erts_finish_loading(p[i].code, BIF_P, 0, &mod);
+ ASSERT(retval == NIL || retval == am_on_load);
+ if (retval == am_on_load) {
+ p[i].exception = 1;
+ exceptions++;
+ }
+ }
+
+ /*
+ * Check whether any module has an on_load_handler.
+ */
+
+ if (exceptions) {
+ res = exception_list(BIF_P, am_on_load, p, exceptions);
+ }
+ do_commit = 1;
+ }
+
+done:
+ return staging_epilogue(BIF_P, do_commit, res, is_blocking, p, n);
+}
+
+static Eterm
+staging_epilogue(Process* c_p, int commit, Eterm res, int is_blocking,
+ struct m* loaded, int nloaded)
+{
+#ifdef ERTS_SMP
+ if (is_blocking || !commit)
+#endif
+ {
+ if (commit) {
+ erts_end_staging_code_ix();
+ erts_commit_staging_code_ix();
+ if (loaded) {
+ int i;
+ for (i=0; i < nloaded; i++) {
+ set_default_trace_pattern(loaded[i].module);
+ }
+ }
+ }
+ else {
+ erts_abort_staging_code_ix();
+ }
+ if (loaded) {
+ erts_free(ERTS_ALC_T_LOADER_TMP, loaded);
+ }
+ if (is_blocking) {
+ erts_smp_thr_progress_unblock();
+ erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
+ }
+ erts_release_code_write_permission();
+ return res;
+ }
+#ifdef ERTS_SMP
+ else {
+ ErtsThrPrgrVal later;
+ ASSERT(is_value(res));
+
+ if (loaded) {
+ erts_free(ERTS_ALC_T_LOADER_TMP, loaded);
+ }
+ erts_end_staging_code_ix();
+ /*
+ * Now we must wait for all schedulers to do a memory barrier before
+ * we can activate and let them access the new staged code. This allows
+ * schedulers to read active code_ix in a safe way while executing
+ * without any memory barriers at all.
+ */
+
+ later = erts_thr_progress_later(c_p->scheduler_data);
+ erts_thr_progress_wakeup(c_p->scheduler_data, later);
+ erts_notify_code_ix_activation(c_p, later);
+ erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL);
+ /*
+ * handle_code_ix_activation() will do the rest "later"
+ * and resume this process to return 'res'.
+ */
+ ERTS_BIF_YIELD_RETURN(c_p, res);
+ }
+#endif
}
BIF_RETTYPE
check_old_code_1(BIF_ALIST_1)
{
+ ErtsCodeIndex code_ix;
Module* modp;
+ Eterm res = am_false;
if (is_not_atom(BIF_ARG_1)) {
BIF_ERROR(BIF_P, BADARG);
}
- modp = erts_get_module(BIF_ARG_1);
- if (modp == NULL) { /* Doesn't exist. */
- BIF_RET(am_false);
- } else if (modp->old_code == NULL) { /* No old code. */
- BIF_RET(am_false);
+ code_ix = erts_active_code_ix();
+ modp = erts_get_module(BIF_ARG_1, code_ix);
+ if (modp != NULL) {
+ erts_rlock_old_code(code_ix);
+ if (modp->old.code != NULL) {
+ res = am_true;
+ }
+ erts_runlock_old_code(code_ix);
}
- BIF_RET(am_true);
+ BIF_RET(res);
}
Eterm
@@ -180,14 +407,20 @@ check_process_code_2(BIF_ALIST_2)
}
if (is_internal_pid(BIF_ARG_1)) {
Eterm res;
+ ErtsCodeIndex code_ix;
if (internal_pid_index(BIF_ARG_1) >= erts_max_processes)
goto error;
- modp = erts_get_module(BIF_ARG_2);
+ code_ix = erts_active_code_ix();
+ modp = erts_get_module(BIF_ARG_2, code_ix);
if (modp == NULL) { /* Doesn't exist. */
return am_false;
- } else if (modp->old_code == NULL) { /* No old code. */
+ }
+ erts_rlock_old_code(code_ix);
+ if (modp->old.code == NULL) { /* No old code. */
+ erts_runlock_old_code(code_ix);
return am_false;
}
+ erts_runlock_old_code(code_ix);
#ifdef ERTS_SMP
rp = erts_pid2proc_suspend(BIF_P, ERTS_PROC_LOCK_MAIN,
@@ -202,7 +435,14 @@ check_process_code_2(BIF_ALIST_2)
ERTS_BIF_YIELD2(bif_export[BIF_check_process_code_2], BIF_P,
BIF_ARG_1, BIF_ARG_2);
}
- res = check_process_code(rp, modp);
+ erts_rlock_old_code(code_ix);
+ if (modp->old.code != NULL) { /* must check again */
+ res = check_process_code(rp, modp);
+ }
+ else {
+ res = am_false;
+ }
+ erts_runlock_old_code(code_ix);
#ifdef ERTS_SMP
if (BIF_P != rp) {
erts_resume(rp, ERTS_PROC_LOCK_MAIN);
@@ -223,56 +463,71 @@ check_process_code_2(BIF_ALIST_2)
BIF_RETTYPE delete_module_1(BIF_ALIST_1)
{
- int res;
+ ErtsCodeIndex code_ix;
+ Module* modp;
+ int is_blocking = 0;
+ int success = 0;
+ Eterm res = NIL;
- if (is_not_atom(BIF_ARG_1))
- goto badarg;
+ if (is_not_atom(BIF_ARG_1)) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD1(bif_export[BIF_delete_module_1], BIF_P, BIF_ARG_1);
+ }
{
- Module *modp = erts_get_module(BIF_ARG_1);
+ erts_start_staging_code_ix();
+ code_ix = erts_staging_code_ix();
+ modp = erts_get_module(BIF_ARG_1, code_ix);
if (!modp) {
res = am_undefined;
}
- else if (modp->old_code != 0) {
+ else if (modp->old.code != 0) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
erts_dsprintf(dsbufp, "Module %T must be purged before loading\n",
BIF_ARG_1);
erts_send_error_to_logger(BIF_P->group_leader, dsbufp);
- res = am_badarg;
+ ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
}
else {
- delete_export_references(BIF_ARG_1);
- delete_code(BIF_P, 0, modp);
+ if (modp->curr.num_breakpoints > 0 ||
+ modp->curr.num_traced_exports > 0) {
+ /* we have tracing, retry single threaded */
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+ is_blocking = 1;
+ if (modp->curr.num_breakpoints) {
+ erts_clear_module_break(modp);
+ ASSERT(modp->curr.num_breakpoints == 0);
+ }
+ }
+ delete_code(modp);
res = am_true;
+ success = 1;
}
}
-
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
-
- if (res == am_badarg) {
- badarg:
- BIF_ERROR(BIF_P, BADARG);
- }
- BIF_RET(res);
+ return staging_epilogue(BIF_P, success, res, is_blocking, NULL, 0);
}
BIF_RETTYPE module_loaded_1(BIF_ALIST_1)
{
Module* modp;
+ ErtsCodeIndex code_ix;
+ Eterm res = am_false;
if (is_not_atom(BIF_ARG_1)) {
BIF_ERROR(BIF_P, BADARG);
}
- if ((modp = erts_get_module(BIF_ARG_1)) == NULL ||
- modp->code == NULL ||
- modp->code[MI_ON_LOAD_FUNCTION_PTR] != 0) {
- BIF_RET(am_false);
+ code_ix = erts_active_code_ix();
+ if ((modp = erts_get_module(BIF_ARG_1, code_ix)) != NULL) {
+ if (modp->curr.code != NULL
+ && modp->curr.code[MI_ON_LOAD_FUNCTION_PTR] == 0) {
+ res = am_true;
+ }
}
- BIF_RET(am_true);
+ BIF_RET(res);
}
BIF_RETTYPE pre_loaded_0(BIF_ALIST_0)
@@ -282,27 +537,28 @@ BIF_RETTYPE pre_loaded_0(BIF_ALIST_0)
BIF_RETTYPE loaded_0(BIF_ALIST_0)
{
+ ErtsCodeIndex code_ix = erts_active_code_ix();
+ Module* modp;
Eterm previous = NIL;
Eterm* hp;
int i;
int j = 0;
-
- for (i = 0; i < module_code_size(); i++) {
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
+
+ for (i = 0; i < module_code_size(code_ix); i++) {
+ if ((modp = module_code(i, code_ix)) != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
j++;
}
}
if (j > 0) {
hp = HAlloc(BIF_P, j*2);
- for (i = 0; i < module_code_size(); i++) {
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
- previous = CONS(hp, make_atom(module_code(i)->module),
- previous);
+ for (i = 0; i < module_code_size(code_ix); i++) {
+ if ((modp=module_code(i,code_ix)) != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
+ previous = CONS(hp, make_atom(modp->module), previous);
hp += 2;
}
}
@@ -312,54 +568,65 @@ BIF_RETTYPE loaded_0(BIF_ALIST_0)
BIF_RETTYPE call_on_load_function_1(BIF_ALIST_1)
{
- Module* modp = erts_get_module(BIF_ARG_1);
- Eterm on_load;
+ Module* modp = erts_get_module(BIF_ARG_1, erts_active_code_ix());
- if (!modp || modp->code == 0) {
- error:
- BIF_ERROR(BIF_P, BADARG);
+ if (modp && modp->curr.code) {
+ BIF_TRAP_CODE_PTR_0(BIF_P, modp->curr.code[MI_ON_LOAD_FUNCTION_PTR]);
}
- if ((on_load = modp->code[MI_ON_LOAD_FUNCTION_PTR]) == 0) {
- goto error;
+ else {
+ BIF_ERROR(BIF_P, BADARG);
}
- BIF_TRAP_CODE_PTR_0(BIF_P, on_load);
}
BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2)
{
- Module* modp = erts_get_module(BIF_ARG_1);
+ ErtsCodeIndex code_ix;
+ Module* modp;
Eterm on_load;
- if (!modp || modp->code == 0) {
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD2(bif_export[BIF_finish_after_on_load_2],
+ BIF_P, BIF_ARG_1, BIF_ARG_2);
+ }
+
+ /* ToDo: Use code_ix staging instead of thread blocking */
+
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+
+ code_ix = erts_active_code_ix();
+ modp = erts_get_module(BIF_ARG_1, code_ix);
+
+ if (!modp || modp->curr.code == 0) {
error:
+ erts_smp_thr_progress_unblock();
+ erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_release_code_write_permission();
BIF_ERROR(BIF_P, BADARG);
}
- if ((on_load = modp->code[MI_ON_LOAD_FUNCTION_PTR]) == 0) {
+ if ((on_load = modp->curr.code[MI_ON_LOAD_FUNCTION_PTR]) == 0) {
goto error;
}
if (BIF_ARG_2 != am_false && BIF_ARG_2 != am_true) {
goto error;
}
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
-
if (BIF_ARG_2 == am_true) {
int i;
/*
* The on_load function succeded. Fix up export entries.
*/
- for (i = 0; i < export_list_size(); i++) {
- Export *ep = export_list(i);
+ for (i = 0; i < export_list_size(code_ix); i++) {
+ Export *ep = export_list(i,code_ix);
if (ep != NULL &&
ep->code[0] == BIF_ARG_1 &&
ep->code[4] != 0) {
- ep->address = (void *) ep->code[4];
+ ep->addressv[code_ix] = (void *) ep->code[4];
ep->code[4] = 0;
}
}
- modp->code[MI_ON_LOAD_FUNCTION_PTR] = 0;
+ modp->curr.code[MI_ON_LOAD_FUNCTION_PTR] = 0;
set_default_trace_pattern(BIF_ARG_1);
} else if (BIF_ARG_2 == am_false) {
BeamInstr* code;
@@ -370,19 +637,21 @@ BIF_RETTYPE finish_after_on_load_2(BIF_ALIST_2)
* This is an combination of delete and purge. We purge
* the current code; the old code is not touched.
*/
- erts_total_code_size -= modp->code_length;
- code = modp->code;
- end = (BeamInstr *)((char *)code + modp->code_length);
+ erts_total_code_size -= modp->curr.code_length;
+ code = modp->curr.code;
+ end = (BeamInstr *)((char *)code + modp->curr.code_length);
erts_cleanup_funs_on_purge(code, end);
- beam_catches_delmod(modp->catches, code, modp->code_length);
+ beam_catches_delmod(modp->curr.catches, code, modp->curr.code_length,
+ erts_active_code_ix());
erts_free(ERTS_ALC_T_CODE, (void *) code);
- modp->code = NULL;
- modp->code_length = 0;
- modp->catches = BEAM_CATCHES_NIL;
- remove_from_address_table(code);
+ modp->curr.code = NULL;
+ modp->curr.code_length = 0;
+ modp->curr.catches = BEAM_CATCHES_NIL;
+ erts_remove_from_ranges(code);
}
erts_smp_thr_progress_unblock();
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_release_code_write_permission();
BIF_RET(am_true);
}
@@ -403,11 +672,11 @@ set_default_trace_pattern(Eterm module)
if (trace_pattern_is_on) {
Eterm mfa[1];
mfa[0] = module;
- (void) erts_set_trace_pattern(mfa, 1,
+ (void) erts_set_trace_pattern(0, mfa, 1,
match_spec,
meta_match_spec,
1, trace_pattern_flags,
- meta_tracer_pid);
+ meta_tracer_pid, 1);
}
}
@@ -427,10 +696,10 @@ check_process_code(Process* rp, Module* modp)
/*
* Pick up limits for the module.
*/
- start = modp->old_code;
- end = (BeamInstr *)((char *)start + modp->old_code_length);
+ start = modp->old.code;
+ end = (BeamInstr *)((char *)start + modp->old.code_length);
mod_start = (char *) start;
- mod_size = modp->old_code_length;
+ mod_size = modp->old.code_length;
/*
* Check if current instruction or continuation pointer points into module.
@@ -562,10 +831,10 @@ check_process_code(Process* rp, Module* modp)
done_gc = 1;
FLAGS(rp) |= F_NEED_FULLSWEEP;
(void) erts_garbage_collect(rp, 0, rp->arg_reg, rp->arity);
- literals = (Eterm *) modp->old_code[MI_LITERALS_START];
- lit_size = (Eterm *) modp->old_code[MI_LITERALS_END] - literals;
+ literals = (Eterm *) modp->old.code[MI_LITERALS_START];
+ lit_size = (Eterm *) modp->old.code[MI_LITERALS_END] - literals;
oh = (struct erl_off_heap_header *)
- modp->old_code[MI_LITERALS_OFF_HEAP];
+ modp->old.code[MI_LITERALS_OFF_HEAP];
erts_garbage_collect_literals(rp, literals, lit_size, oh);
}
}
@@ -624,53 +893,82 @@ any_heap_refs(Eterm* start, Eterm* end, char* mod_start, Uint mod_size)
#undef in_area
-
-static int
-purge_module(int module)
+BIF_RETTYPE purge_module_1(BIF_ALIST_1)
{
+ ErtsCodeIndex code_ix;
BeamInstr* code;
BeamInstr* end;
Module* modp;
+ int is_blocking = 0;
+ Eterm ret;
- /*
- * Correct module?
- */
-
- if ((modp = erts_get_module(make_atom(module))) == NULL) {
- return -2;
+ if (is_not_atom(BIF_ARG_1)) {
+ BIF_ERROR(BIF_P, BADARG);
}
- /*
- * Any code to purge?
- */
- if (modp->old_code == 0) {
- return -1;
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD1(bif_export[BIF_purge_module_1], BIF_P, BIF_ARG_1);
}
+ code_ix = erts_active_code_ix();
+
/*
- * Unload any NIF library
+ * Correct module?
*/
- if (modp->old_nif != NULL) {
- erts_unload_nif(modp->old_nif);
- modp->old_nif = NULL;
+
+ if ((modp = erts_get_module(BIF_ARG_1, code_ix)) == NULL) {
+ ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG);
}
+ else {
+ erts_rwlock_old_code(code_ix);
- /*
- * Remove the old code.
- */
- ASSERT(erts_total_code_size >= modp->old_code_length);
- erts_total_code_size -= modp->old_code_length;
- code = modp->old_code;
- end = (BeamInstr *)((char *)code + modp->old_code_length);
- erts_cleanup_funs_on_purge(code, end);
- beam_catches_delmod(modp->old_catches, code, modp->old_code_length);
- decrement_refc(code);
- erts_free(ERTS_ALC_T_CODE, (void *) code);
- modp->old_code = NULL;
- modp->old_code_length = 0;
- modp->old_catches = BEAM_CATCHES_NIL;
- remove_from_address_table(code);
- return 0;
+ /*
+ * Any code to purge?
+ */
+ if (modp->old.code == 0) {
+ ERTS_BIF_PREP_ERROR(ret, BIF_P, BADARG);
+ }
+ else {
+ /*
+ * Unload any NIF library
+ */
+ if (modp->old.nif != NULL) {
+ /* ToDo: Do unload nif without blocking */
+ erts_rwunlock_old_code(code_ix);
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_smp_thr_progress_block();
+ is_blocking = 1;
+ erts_rwlock_old_code(code_ix);
+ erts_unload_nif(modp->old.nif);
+ modp->old.nif = NULL;
+ }
+
+ /*
+ * Remove the old code.
+ */
+ ASSERT(erts_total_code_size >= modp->old.code_length);
+ erts_total_code_size -= modp->old.code_length;
+ code = modp->old.code;
+ end = (BeamInstr *)((char *)code + modp->old.code_length);
+ erts_cleanup_funs_on_purge(code, end);
+ beam_catches_delmod(modp->old.catches, code, modp->old.code_length,
+ code_ix);
+ decrement_refc(code);
+ erts_free(ERTS_ALC_T_CODE, (void *) code);
+ modp->old.code = NULL;
+ modp->old.code_length = 0;
+ modp->old.catches = BEAM_CATCHES_NIL;
+ erts_remove_from_ranges(code);
+ ERTS_BIF_PREP_RET(ret, am_true);
+ }
+ erts_rwunlock_old_code(code_ix);
+ }
+ if (is_blocking) {
+ erts_smp_thr_progress_unblock();
+ erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ }
+ erts_release_code_write_permission();
+ return ret;
}
static void
@@ -690,92 +988,48 @@ decrement_refc(BeamInstr* code)
}
}
-static void
-remove_from_address_table(BeamInstr* code)
-{
- int i;
-
- for (i = 0; i < num_loaded_modules; i++) {
- if (modules[i].start == code) {
- num_loaded_modules--;
- while (i < num_loaded_modules) {
- modules[i] = modules[i+1];
- i++;
- }
- mid_module = &modules[num_loaded_modules/2];
- return;
- }
- }
- ASSERT(0); /* Not found? */
-}
-
-
/*
- * Move code from current to old.
+ * Move code from current to old and null all export entries for the module
*/
-static void
-delete_code(Process *c_p, ErtsProcLocks c_p_locks, Module* modp)
-{
-#ifdef ERTS_ENABLE_LOCK_CHECK
-#ifdef ERTS_SMP
- if (c_p && c_p_locks)
- erts_proc_lc_chk_only_proc_main(c_p);
- else
-#endif
- erts_lc_check_exact(NULL, 0);
-#endif
-
- /*
- * Clear breakpoints if any
- */
- if (modp->code != NULL && modp->code[MI_NUM_BREAKPOINTS] > 0) {
- if (c_p && c_p_locks)
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
- erts_clear_module_break(modp);
- modp->code[MI_NUM_BREAKPOINTS] = 0;
- erts_smp_thr_progress_unblock();
- if (c_p && c_p_locks)
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MAIN);
- }
- modp->old_code = modp->code;
- modp->old_code_length = modp->code_length;
- modp->old_catches = modp->catches;
- modp->old_nif = modp->nif;
- modp->code = NULL;
- modp->code_length = 0;
- modp->catches = BEAM_CATCHES_NIL;
- modp->nif = NULL;
-}
-
-
-/* null all references on the export table for the module called with the
- atom index below */
-
static void
-delete_export_references(Eterm module)
+delete_code(Module* modp)
{
+ ErtsCodeIndex code_ix = erts_staging_code_ix();
+ Eterm module = make_atom(modp->module);
int i;
- ASSERT(is_atom(module));
-
- for (i = 0; i < export_list_size(); i++) {
- Export *ep = export_list(i);
+ for (i = 0; i < export_list_size(code_ix); i++) {
+ Export *ep = export_list(i, code_ix);
if (ep != NULL && (ep->code[0] == module)) {
- if (ep->address == ep->code+3 &&
- (ep->code[3] == (BeamInstr) em_apply_bif)) {
- continue;
+ if (ep->addressv[code_ix] == ep->code+3) {
+ if (ep->code[3] == (BeamInstr) em_apply_bif) {
+ continue;
+ }
+ else if (ep->code[3] ==
+ (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+ ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
+ ASSERT(modp->curr.num_traced_exports > 0);
+ erts_clear_export_break(modp, ep->code+3);
+ }
+ else ASSERT(ep->code[3] == (BeamInstr) em_call_error_handler
+ || !erts_initialized);
}
- ep->address = ep->code+3;
+ ep->addressv[code_ix] = ep->code+3;
ep->code[3] = (BeamInstr) em_call_error_handler;
ep->code[4] = 0;
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = NULL;
}
}
+
+ ASSERT(modp->curr.num_breakpoints == 0);
+ ASSERT(modp->curr.num_traced_exports == 0);
+ modp->old = modp->curr;
+ modp->curr.code = NULL;
+ modp->curr.code_length = 0;
+ modp->curr.catches = BEAM_CATCHES_NIL;
+ modp->curr.nif = NULL;
}
-
+
Eterm
beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module)
@@ -787,11 +1041,10 @@ beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module)
* if not, delete old code; error if old code already exists.
*/
- if (modp->code != NULL && modp->old_code != NULL) {
+ if (modp->curr.code != NULL && modp->old.code != NULL) {
return am_not_purged;
- } else if (modp->old_code == NULL) { /* Make the current version old. */
- delete_code(c_p, c_p_locks, modp);
- delete_export_references(module);
+ } else if (modp->old.code == NULL) { /* Make the current version old. */
+ delete_code(modp);
}
return NIL;
}
diff --git a/erts/emulator/beam/beam_bp.c b/erts/emulator/beam/beam_bp.c
index d772bea02f..50d18b0347 100644
--- a/erts/emulator/beam/beam_bp.c
+++ b/erts/emulator/beam/beam_bp.c
@@ -44,67 +44,34 @@
#define ReAlloc(P, SIZ) erts_realloc(ERTS_ALC_T_BPD, (P), (SZ))
#define Free(P) erts_free(ERTS_ALC_T_BPD, (P))
-/*
-** Doubly linked ring macros
-*/
-
-#define BpInit(a,i) \
-do { \
- (a)->orig_instr = (i); \
- (a)->next = (a); \
- (a)->prev = (a); \
-} while (0)
-
-#define BpSpliceNext(a,b) \
-do { \
- register BpData *c = (a), *d = (b), *e; \
- e = c->next->prev; \
- c->next->prev = d->next->prev; \
- d->next->prev = e; \
- e = c->next; \
- c->next = d->next; \
- d->next = e; \
-} while (0)
-
-#define BpSplicePrev(a,b) \
-do { \
- register BpData *c = (a), *d = (b), *e; \
- e = c->prev->next; \
- c->prev->next = d->prev->next; \
- d->prev->next = e; \
- e = c->prev; \
- c->prev = d->prev; \
- d->prev = e; \
-} while (0)
-
-#ifdef DEBUG
-# define BpSingleton(a) ((a)->next == (a) && (a)->prev == (a))
+#if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP)
+# define ERTS_SMP_REQ_PROC_MAIN_LOCK(P) \
+ if ((P)) erts_proc_lc_require_lock((P), ERTS_PROC_LOCK_MAIN)
+# define ERTS_SMP_UNREQ_PROC_MAIN_LOCK(P) \
+ if ((P)) erts_proc_lc_unrequire_lock((P), ERTS_PROC_LOCK_MAIN)
#else
-# define BpSingleton(a) ((a)->next == (a))
+# define ERTS_SMP_REQ_PROC_MAIN_LOCK(P)
+# define ERTS_SMP_UNREQ_PROC_MAIN_LOCK(P)
#endif
-#define BpInitAndSpliceNext(a,i,b) \
-do { \
- (a)->orig_instr = (i); \
- (a)->prev = (b); \
- (b)->next->prev = (a); \
- (a)->next = (b)->next; \
- (b)->next = (a); \
-} while (0)
+#define ERTS_BPF_LOCAL_TRACE 0x01
+#define ERTS_BPF_META_TRACE 0x02
+#define ERTS_BPF_COUNT 0x04
+#define ERTS_BPF_COUNT_ACTIVE 0x08
+#define ERTS_BPF_DEBUG 0x10
+#define ERTS_BPF_TIME_TRACE 0x20
+#define ERTS_BPF_TIME_TRACE_ACTIVE 0x40
+#define ERTS_BPF_GLOBAL_TRACE 0x80
-#define BpInitAndSplicePrev(a,i,b) \
-do { \
- (a)->orig_instr = (i); \
- (a)->next = (b); \
- (b)->prev->next = (a); \
- (a)->prev = (b)->prev; \
- (b)->prev = (a); \
-} while (0)
+#define ERTS_BPF_ALL 0xFF
+extern Eterm beam_return_to_trace[1]; /* OpCode(i_return_to_trace) */
+extern Eterm beam_return_trace[1]; /* OpCode(i_return_trace) */
+extern Eterm beam_exception_trace[1]; /* OpCode(i_exception_trace) */
+extern Eterm beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */
-#define BREAK_IS_BIF (1)
-#define BREAK_IS_ERL (0)
-
+erts_smp_atomic32_t erts_active_bp_index;
+erts_smp_atomic32_t erts_staging_bp_index;
/* *************************************************************************
** Local prototypes
@@ -113,26 +80,30 @@ do { \
/*
** Helpers
*/
-
-static int set_break(Eterm mfa[3], int specified,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid);
-static int set_module_break(Module *modp, Eterm mfa[3], int specified,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid);
-static int set_function_break(Module *modp, BeamInstr *pc, int bif,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid);
-
-static int clear_break(Eterm mfa[3], int specified,
- BeamInstr break_op);
-static int clear_module_break(Module *modp, Eterm mfa[3], int specified,
- BeamInstr break_op);
-static int clear_function_break(Module *modp, BeamInstr *pc, int bif,
- BeamInstr break_op);
-
-static BpData *is_break(BeamInstr *pc, BeamInstr break_op);
-static BpData *get_break(Process *p, BeamInstr *pc, BeamInstr break_op);
+static Eterm do_call_trace(Process* c_p, BeamInstr* I, Eterm* reg,
+ int local, Binary* ms, Eterm tracer_pid);
+static void set_break(BpFunctions* f, Binary *match_spec, Uint break_flags,
+ enum erts_break_op count_op, Eterm tracer_pid);
+static void set_function_break(BeamInstr *pc,
+ Binary *match_spec,
+ Uint break_flags,
+ enum erts_break_op count_op,
+ Eterm tracer_pid);
+
+static void clear_break(BpFunctions* f, Uint break_flags);
+static int clear_function_break(BeamInstr *pc, Uint break_flags);
+
+static BpDataTime* get_time_break(BeamInstr *pc);
+static GenericBpData* check_break(BeamInstr *pc, Uint break_flags);
+static void bp_time_diff(bp_data_time_item_t *item,
+ process_breakpoint_time_t *pbt,
+ Uint ms, Uint s, Uint us);
+
+static void bp_meta_unref(BpMetaPid* bmp);
+static void bp_count_unref(BpCount* bcp);
+static void bp_time_unref(BpDataTime* bdt);
+static void consolidate_bp_data(Module* modp, BeamInstr* pc, int local);
+static void uninstall_breakpoint(BeamInstr* pc);
/* bp_hash */
#define BP_TIME_ADD(pi0, pi1) \
@@ -152,240 +123,996 @@ static ERTS_INLINE bp_data_time_item_t * bp_hash_get(bp_time_hash_t *hash, bp_da
static ERTS_INLINE bp_data_time_item_t * bp_hash_put(bp_time_hash_t *hash, bp_data_time_item_t *sitem);
static void bp_hash_delete(bp_time_hash_t *hash);
-
/* *************************************************************************
** External interfaces
*/
-erts_smp_spinlock_t erts_bp_lock;
-
void
erts_bp_init(void) {
- erts_smp_spinlock_init(&erts_bp_lock, "breakpoints");
+ erts_smp_atomic32_init_nob(&erts_active_bp_index, 0);
+ erts_smp_atomic32_init_nob(&erts_staging_bp_index, 1);
}
-int
-erts_set_trace_break(Eterm mfa[3], int specified, Binary *match_spec,
- Eterm tracer_pid) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, match_spec,
- (BeamInstr) BeamOp(op_i_trace_breakpoint), 0, tracer_pid);
+
+void
+erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified)
+{
+ ErtsCodeIndex code_ix = erts_active_code_ix();
+ Uint max_funcs = 0;
+ int current;
+ int max_modules = module_code_size(code_ix);
+ int num_modules = 0;
+ Module* modp;
+ Module** module;
+ Uint i;
+
+ module = (Module **) Alloc(max_modules*sizeof(Module *));
+ num_modules = 0;
+ for (current = 0; current < max_modules; current++) {
+ modp = module_code(current, code_ix);
+ if (modp->curr.code) {
+ max_funcs += modp->curr.code[MI_NUM_FUNCTIONS];
+ module[num_modules++] = modp;
+ }
+ }
+
+ f->matching = (BpFunction *) Alloc(max_funcs*sizeof(BpFunction));
+ i = 0;
+ for (current = 0; current < num_modules; current++) {
+ BeamInstr** code_base = (BeamInstr **) module[current]->curr.code;
+ BeamInstr* code;
+ Uint num_functions = (Uint) code_base[MI_NUM_FUNCTIONS];
+ Uint fi;
+
+ if (specified > 0) {
+ if (mfa[0] != make_atom(module[current]->module)) {
+ /* Wrong module name */
+ continue;
+ }
+ }
+
+ for (fi = 0; fi < num_functions; fi++) {
+ Eterm* pc;
+ int wi;
+
+ code = code_base[MI_FUNCTIONS+fi];
+ ASSERT(code[0] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
+ pc = code+5;
+ if (erts_is_native_break(pc)) {
+ continue;
+ }
+ if (is_nil(code[3])) { /* Ignore BIF stub */
+ continue;
+ }
+ for (wi = 0;
+ wi < specified && (Eterm) code[2+wi] == mfa[wi];
+ wi++) {
+ /* Empty loop body */
+ }
+ if (wi == specified) {
+ /* Store match */
+ f->matching[i].pc = pc;
+ f->matching[i].mod = module[current];
+ i++;
+ }
+ }
+ }
+ f->matched = i;
+ Free(module);
}
-int
-erts_set_mtrace_break(Eterm mfa[3], int specified, Binary *match_spec,
- Eterm tracer_pid) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, match_spec,
- (BeamInstr) BeamOp(op_i_mtrace_breakpoint), 0, tracer_pid);
+void
+erts_bp_match_export(BpFunctions* f, Eterm mfa[3], int specified)
+{
+ ErtsCodeIndex code_ix = erts_active_code_ix();
+ int i;
+ int num_exps = export_list_size(code_ix);
+ int ne;
+
+ f->matching = (BpFunction *) Alloc(num_exps*sizeof(BpFunction));
+ ne = 0;
+ for (i = 0; i < num_exps; i++) {
+ Export* ep = export_list(i, code_ix);
+ BeamInstr* pc;
+ int j;
+
+ for (j = 0; j < specified && mfa[j] == ep->code[j]; j++) {
+ /* Empty loop body */
+ }
+ if (j < specified) {
+ continue;
+ }
+ pc = ep->code+3;
+ if (ep->addressv[code_ix] == pc) {
+ if ((*pc == (BeamInstr) em_apply_bif ||
+ *pc == (BeamInstr) em_call_error_handler)) {
+ continue;
+ }
+ ASSERT(*pc == (BeamInstr) BeamOp(op_i_generic_breakpoint));
+ } else if (erts_is_native_break(ep->addressv[code_ix])) {
+ continue;
+ }
+
+ f->matching[ne].pc = pc;
+ f->matching[ne].mod = erts_get_module(ep->code[0], code_ix);
+ ne++;
+
+ }
+ f->matched = ne;
}
-/* set breakpoint data for on exported bif entry */
+void
+erts_bp_free_matched_functions(BpFunctions* f)
+{
+ Free(f->matching);
+}
void
-erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec, Eterm tracer_pid) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- set_function_break(NULL, pc, BREAK_IS_BIF, match_spec, (BeamInstr) BeamOp(op_i_mtrace_breakpoint), 0, tracer_pid);
+erts_consolidate_bp_data(BpFunctions* f, int local)
+{
+ BpFunction* fs = f->matching;
+ Uint i;
+ Uint n = f->matched;
+
+ ERTS_SMP_LC_ASSERT(erts_is_code_ix_locked());
+
+ for (i = 0; i < n; i++) {
+ consolidate_bp_data(fs[i].mod, fs[i].pc, local);
+ }
}
-void erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op count_op) {
- set_function_break(NULL, pc, BREAK_IS_BIF, NULL, (BeamInstr) BeamOp(op_i_time_breakpoint), count_op, NIL);
+void
+erts_consolidate_bif_bp_data(void)
+{
+ int i;
+
+ ERTS_SMP_LC_ASSERT(erts_is_code_ix_locked());
+ for (i = 0; i < BIF_SIZE; i++) {
+ Export *ep = bif_export[i];
+ consolidate_bp_data(0, ep->code+3, 0);
+ }
}
-void erts_clear_time_trace_bif(BeamInstr *pc) {
- clear_function_break(NULL, pc, BREAK_IS_BIF, (BeamInstr) BeamOp(op_i_time_breakpoint));
+static void
+consolidate_bp_data(Module* modp, BeamInstr* pc, int local)
+{
+ GenericBp* g = (GenericBp *) pc[-4];
+ GenericBpData* src;
+ GenericBpData* dst;
+ Uint flags;
+
+ if (g == 0) {
+ return;
+ }
+
+ src = &g->data[erts_active_bp_ix()];
+ dst = &g->data[erts_staging_bp_ix()];
+
+ /*
+ * The contents of the staging area may be out of date.
+ * Decrement all reference pointers.
+ */
+
+ flags = dst->flags;
+ if (flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ MatchSetUnref(dst->local_ms);
+ }
+ if (flags & ERTS_BPF_META_TRACE) {
+ bp_meta_unref(dst->meta_pid);
+ MatchSetUnref(dst->meta_ms);
+ }
+ if (flags & ERTS_BPF_COUNT) {
+ bp_count_unref(dst->count);
+ }
+ if (flags & ERTS_BPF_TIME_TRACE) {
+ bp_time_unref(dst->time);
+ }
+
+ /*
+ * If all flags are zero, deallocate all breakpoint data.
+ */
+
+ flags = dst->flags = src->flags;
+ if (flags == 0) {
+ if (modp) {
+ if (local) {
+ modp->curr.num_breakpoints--;
+ } else {
+ modp->curr.num_traced_exports--;
+ }
+ ASSERT(modp->curr.num_breakpoints >= 0);
+ ASSERT(modp->curr.num_traced_exports >= 0);
+ ASSERT(*pc != (BeamInstr) BeamOp(op_i_generic_breakpoint));
+ }
+ pc[-4] = 0;
+ Free(g);
+ return;
+ }
+
+ /*
+ * Copy the active data to the staging area (making it ready
+ * for the next time it will be used).
+ */
+
+ if (flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ dst->local_ms = src->local_ms;
+ MatchSetRef(dst->local_ms);
+ }
+ if (flags & ERTS_BPF_META_TRACE) {
+ dst->meta_pid = src->meta_pid;
+ erts_refc_inc(&dst->meta_pid->refc, 1);
+ dst->meta_ms = src->meta_ms;
+ MatchSetRef(dst->meta_ms);
+ }
+ if (flags & ERTS_BPF_COUNT) {
+ dst->count = src->count;
+ erts_refc_inc(&dst->count->refc, 1);
+ }
+ if (flags & ERTS_BPF_TIME_TRACE) {
+ dst->time = src->time;
+ erts_refc_inc(&dst->time->refc, 1);
+ ASSERT(dst->time->hash);
+ }
}
-int
-erts_set_debug_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, NULL,
- (BeamInstr) BeamOp(op_i_debug_breakpoint), 0, NIL);
+void
+erts_commit_staged_bp(void)
+{
+ ErtsBpIndex staging = erts_staging_bp_ix();
+ ErtsBpIndex active = erts_active_bp_ix();
+
+ erts_smp_atomic32_set_nob(&erts_active_bp_index, staging);
+ erts_smp_atomic32_set_nob(&erts_staging_bp_index, active);
}
-int
-erts_set_count_break(Eterm mfa[3], int specified, enum erts_break_op count_op) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, NULL,
- (BeamInstr) BeamOp(op_i_count_breakpoint), count_op, NIL);
+void
+erts_install_breakpoints(BpFunctions* f)
+{
+ Uint i;
+ Uint n = f->matched;
+ BeamInstr br = (BeamInstr) BeamOp(op_i_generic_breakpoint);
+
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = f->matching[i].pc;
+ GenericBp* g = (GenericBp *) pc[-4];
+ if (*pc != br && g) {
+ Module* modp = f->matching[i].mod;
+
+ /*
+ * The breakpoint must be disabled in the active data
+ * (it will enabled later by switching bp indices),
+ * and enabled in the staging data.
+ */
+ ASSERT(g->data[erts_active_bp_ix()].flags == 0);
+ ASSERT(g->data[erts_staging_bp_ix()].flags != 0);
+
+ /*
+ * The following write is not protected by any lock. We
+ * assume that the hardware guarantees that a write of an
+ * aligned word-size (or half-word) writes is atomic
+ * (i.e. that other processes executing this code will not
+ * see a half pointer).
+ */
+ *pc = br;
+ modp->curr.num_breakpoints++;
+ }
+ }
}
-int
-erts_set_time_break(Eterm mfa[3], int specified, enum erts_break_op count_op) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return set_break(mfa, specified, NULL,
- (BeamInstr) BeamOp(op_i_time_breakpoint), count_op, NIL);
+void
+erts_uninstall_breakpoints(BpFunctions* f)
+{
+ Uint i;
+ Uint n = f->matched;
+
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = f->matching[i].pc;
+ uninstall_breakpoint(pc);
+ }
}
-int
-erts_clear_trace_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_trace_breakpoint));
+static void
+uninstall_breakpoint(BeamInstr* pc)
+{
+ if (*pc == (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+ GenericBp* g = (GenericBp *) pc[-4];
+ if (g->data[erts_active_bp_ix()].flags == 0) {
+ /*
+ * The following write is not protected by any lock. We
+ * assume that the hardware guarantees that a write of an
+ * aligned word-size (or half-word) writes is atomic
+ * (i.e. that other processes executing this code will not
+ * see a half pointer).
+ */
+ *pc = g->orig_instr;
+ }
+ }
}
-int
-erts_clear_mtrace_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_mtrace_breakpoint));
+void
+erts_set_trace_break(BpFunctions* f, Binary *match_spec)
+{
+ set_break(f, match_spec, ERTS_BPF_LOCAL_TRACE, 0, am_true);
}
void
-erts_clear_mtrace_bif(BeamInstr *pc) {
- clear_function_break(NULL, pc, BREAK_IS_BIF, (BeamInstr) BeamOp(op_i_mtrace_breakpoint));
+erts_set_mtrace_break(BpFunctions* f, Binary *match_spec, Eterm tracer_pid)
+{
+ set_break(f, match_spec, ERTS_BPF_META_TRACE, 0, tracer_pid);
}
-int
-erts_clear_debug_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_debug_breakpoint));
+void
+erts_set_call_trace_bif(BeamInstr *pc, Binary *match_spec, int local)
+{
+ Uint flags = local ? ERTS_BPF_LOCAL_TRACE : ERTS_BPF_GLOBAL_TRACE;
+
+ set_function_break(pc, match_spec, flags, 0, NIL);
}
-int
-erts_clear_count_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_count_breakpoint));
+void
+erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec, Eterm tracer_pid)
+{
+ set_function_break(pc, match_spec, ERTS_BPF_META_TRACE, 0, tracer_pid);
}
-int
-erts_clear_time_break(Eterm mfa[3], int specified) {
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified,
- (BeamInstr) BeamOp(op_i_time_breakpoint));
+void
+erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op count_op)
+{
+ set_function_break(pc, NULL,
+ ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE,
+ count_op, NIL);
}
-int
-erts_clear_break(Eterm mfa[3], int specified) {
+void
+erts_clear_time_trace_bif(BeamInstr *pc) {
+ clear_function_break(pc, ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE);
+}
+
+void
+erts_set_debug_break(BpFunctions* f) {
+ set_break(f, NULL, ERTS_BPF_DEBUG, 0, NIL);
+}
+
+void
+erts_set_count_break(BpFunctions* f, enum erts_break_op count_op)
+{
+ set_break(f, 0, ERTS_BPF_COUNT|ERTS_BPF_COUNT_ACTIVE,
+ count_op, NIL);
+}
+
+void
+erts_set_time_break(BpFunctions* f, enum erts_break_op count_op)
+{
+ set_break(f, 0, ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE,
+ count_op, NIL);
+}
+
+void
+erts_clear_trace_break(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_LOCAL_TRACE);
+}
+
+void
+erts_clear_call_trace_bif(BeamInstr *pc, int local)
+{
+ GenericBp* g = (GenericBp *) pc[-4];
+
+ if (g) {
+ Uint flags = local ? ERTS_BPF_LOCAL_TRACE : ERTS_BPF_GLOBAL_TRACE;
+ if (g->data[erts_staging_bp_ix()].flags & flags) {
+ clear_function_break(pc, flags);
+ }
+ }
+}
+
+void
+erts_clear_mtrace_break(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_META_TRACE);
+}
+
+void
+erts_clear_mtrace_bif(BeamInstr *pc)
+{
+ clear_function_break(pc, ERTS_BPF_META_TRACE);
+}
+
+void
+erts_clear_debug_break(BpFunctions* f)
+{
ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- return clear_break(mfa, specified, 0);
+ clear_break(f, ERTS_BPF_DEBUG);
+}
+
+void
+erts_clear_count_break(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_COUNT|ERTS_BPF_COUNT_ACTIVE);
+}
+
+void
+erts_clear_time_break(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_TIME_TRACE|ERTS_BPF_TIME_TRACE_ACTIVE);
+}
+
+void
+erts_clear_all_breaks(BpFunctions* f)
+{
+ clear_break(f, ERTS_BPF_ALL);
}
int
erts_clear_module_break(Module *modp) {
+ BeamInstr** code_base;
+ Uint n;
+ Uint i;
+
ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
ASSERT(modp);
- return clear_module_break(modp, NULL, 0, 0);
+ code_base = (BeamInstr **) modp->curr.code;
+ if (code_base == NULL) {
+ return 0;
+ }
+ n = (Uint) code_base[MI_NUM_FUNCTIONS];
+ for (i = 0; i < n; ++i) {
+ BeamInstr* pc;
+
+ pc = code_base[MI_FUNCTIONS+i] + 5;
+ if (erts_is_native_break(pc)) {
+ continue;
+ }
+ clear_function_break(pc, ERTS_BPF_ALL);
+ }
+
+ erts_commit_staged_bp();
+
+ for (i = 0; i < n; ++i) {
+ BeamInstr* pc;
+
+ pc = code_base[MI_FUNCTIONS+i] + 5;
+ if (erts_is_native_break(pc)) {
+ continue;
+ }
+ uninstall_breakpoint(pc);
+ consolidate_bp_data(modp, pc, 1);
+ ASSERT(pc[-4] == 0);
+ }
+ return n;
}
-int
-erts_clear_function_break(Module *modp, BeamInstr *pc) {
+void
+erts_clear_export_break(Module* modp, BeamInstr* pc)
+{
ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
- ASSERT(modp);
- return clear_function_break(modp, pc, BREAK_IS_ERL, 0);
+
+ clear_function_break(pc, ERTS_BPF_ALL);
+ erts_commit_staged_bp();
+ *pc = (BeamInstr) 0;
+ consolidate_bp_data(modp, pc, 0);
+ ASSERT(pc[-4] == 0);
}
+BeamInstr
+erts_generic_breakpoint(Process* c_p, BeamInstr* I, Eterm* reg)
+{
+ GenericBp* g;
+ GenericBpData* bp;
+ Uint bp_flags;
+ ErtsBpIndex ix = erts_active_bp_ix();
+
+ g = (GenericBp *) I[-4];
+ bp = &g->data[ix];
+ bp_flags = bp->flags;
+ ASSERT((bp_flags & ~ERTS_BPF_ALL) == 0);
+ if (bp_flags & (ERTS_BPF_LOCAL_TRACE|
+ ERTS_BPF_GLOBAL_TRACE|
+ ERTS_BPF_TIME_TRACE_ACTIVE) &&
+ !IS_TRACED_FL(c_p, F_TRACE_CALLS)) {
+ bp_flags &= ~(ERTS_BPF_LOCAL_TRACE|
+ ERTS_BPF_GLOBAL_TRACE|
+ ERTS_BPF_TIME_TRACE|
+ ERTS_BPF_TIME_TRACE_ACTIVE);
+ if (bp_flags == 0) { /* Quick exit */
+ return g->orig_instr;
+ }
+ }
+
+ if (bp_flags & ERTS_BPF_LOCAL_TRACE) {
+ ASSERT((bp_flags & ERTS_BPF_GLOBAL_TRACE) == 0);
+ (void) do_call_trace(c_p, I, reg, 1, bp->local_ms, am_true);
+ } else if (bp_flags & ERTS_BPF_GLOBAL_TRACE) {
+ (void) do_call_trace(c_p, I, reg, 0, bp->local_ms, am_true);
+ }
+
+ if (bp_flags & ERTS_BPF_META_TRACE) {
+ Eterm old_pid;
+ Eterm new_pid;
+
+ old_pid = (Eterm) erts_smp_atomic_read_nob(&bp->meta_pid->pid);
+ new_pid = do_call_trace(c_p, I, reg, 1, bp->meta_ms, old_pid);
+ if (new_pid != old_pid) {
+ erts_smp_atomic_set_nob(&bp->meta_pid->pid, new_pid);
+ }
+ }
+
+ if (bp_flags & ERTS_BPF_COUNT_ACTIVE) {
+ erts_smp_atomic_inc_nob(&bp->count->acount);
+ }
+
+ if (bp_flags & ERTS_BPF_TIME_TRACE_ACTIVE) {
+ Eterm w;
+ erts_trace_time_call(c_p, I, bp->time);
+ w = (BeamInstr) *c_p->cp;
+ if (! (w == (BeamInstr) BeamOp(op_i_return_time_trace) ||
+ w == (BeamInstr) BeamOp(op_return_trace) ||
+ w == (BeamInstr) BeamOp(op_i_return_to_trace)) ) {
+ Eterm* E = c_p->stop;
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+ if (E - 2 < c_p->htop) {
+ (void) erts_garbage_collect(c_p, 2, reg, I[-1]);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
+ }
+ E = c_p->stop;
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+
+ E -= 2;
+ E[0] = make_cp(I);
+ E[1] = make_cp(c_p->cp); /* original return address */
+ c_p->cp = beam_return_time_trace;
+ c_p->stop = E;
+ }
+ }
+
+ if (bp_flags & ERTS_BPF_DEBUG) {
+ return (BeamInstr) BeamOp(op_i_debug_breakpoint);
+ } else {
+ return g->orig_instr;
+ }
+}
/*
- * SMP NOTE: Process p may have become exiting on return!
+ * Entry point called by the trace wrap functions in erl_bif_wrap.c
+ *
+ * The trace wrap functions are themselves called through the export
+ * entries instead of the original BIF functions.
*/
-BeamInstr
-erts_trace_break(Process *p, BeamInstr *pc, Eterm *args,
- Uint32 *ret_flags, Eterm *tracer_pid) {
- Eterm tpid1, tpid2;
- BpData **bds = (BpData **) (pc)[-4];
- BpDataTrace *bdt = NULL;
+Eterm
+erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I)
+{
+ Eterm result;
+ Eterm (*func)(Process*, Eterm*, BeamInstr*);
+ Export* ep = bif_export[bif_index];
+ Uint32 flags = 0, flags_meta = 0;
+ Eterm meta_tracer_pid = NIL;
+ int applying = (I == &(ep->code[3])); /* Yup, the apply code for a bif
+ * is actually in the
+ * export entry */
+ BeamInstr *cp = p->cp;
+ GenericBp* g;
+ GenericBpData* bp;
+ Uint bp_flags = 0;
+
+ ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
+
+ g = (GenericBp *) ep->fake_op_func_info_for_hipe[1];
+ if (g) {
+ bp = &g->data[erts_active_bp_ix()];
+ bp_flags = bp->flags;
+ }
- ASSERT(bds);
- ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
- bdt = (BpDataTrace *) bds[bp_sched2ix_proc(p)];
- ASSERT(bdt);
- bdt = (BpDataTrace *) bdt->next;
- ASSERT(bdt);
- ASSERT(ret_flags);
- ASSERT(tracer_pid);
-
- ErtsSmpBPLock(bdt);
- tpid1 = tpid2 = bdt->tracer_pid;
- ErtsSmpBPUnlock(bdt);
-
- *ret_flags = erts_call_trace(p, pc-3/*mfa*/, bdt->match_spec, args,
- 1, &tpid2);
- *tracer_pid = tpid2;
- if (tpid1 != tpid2) {
- ErtsSmpBPLock(bdt);
- bdt->tracer_pid = tpid2;
- ErtsSmpBPUnlock(bdt);
- }
- bds[bp_sched2ix_proc(p)] = (BpData *) bdt;
- return bdt->orig_instr;
+ /*
+ * Make continuation pointer OK, it is not during direct BIF calls,
+ * but it is correct during apply of bif.
+ */
+ if (!applying) {
+ p->cp = I;
+ }
+ if (bp_flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE) &&
+ IS_TRACED_FL(p, F_TRACE_CALLS)) {
+ int local = !!(bp_flags & ERTS_BPF_LOCAL_TRACE);
+ flags = erts_call_trace(p, ep->code, bp->local_ms, args,
+ local, &p->tracer_proc);
+ }
+ if (bp_flags & ERTS_BPF_META_TRACE) {
+ Eterm tpid1, tpid2;
+
+ tpid1 = tpid2 =
+ (Eterm) erts_smp_atomic_read_nob(&bp->meta_pid->pid);
+ flags_meta = erts_call_trace(p, ep->code, bp->meta_ms, args,
+ 0, &tpid2);
+ meta_tracer_pid = tpid2;
+ if (tpid1 != tpid2) {
+ erts_smp_atomic_set_nob(&bp->meta_pid->pid, tpid2);
+ }
+ }
+ if (bp_flags & ERTS_BPF_TIME_TRACE_ACTIVE &&
+ IS_TRACED_FL(p, F_TRACE_CALLS)) {
+ BeamInstr *pc = (BeamInstr *)ep->code+3;
+ erts_trace_time_call(p, pc, bp->time);
+ }
+
+ /* Restore original continuation pointer (if changed). */
+ p->cp = cp;
+
+ func = bif_table[bif_index].f;
+
+ result = func(p, args, I);
+
+ if (applying && (flags & MATCH_SET_RETURN_TO_TRACE)) {
+ BeamInstr i_return_trace = beam_return_trace[0];
+ BeamInstr i_return_to_trace = beam_return_to_trace[0];
+ BeamInstr i_return_time_trace = beam_return_time_trace[0];
+ Eterm *cpp;
+ /* Maybe advance cp to skip trace stack frames */
+ for (cpp = p->stop; ; cp = cp_val(*cpp++)) {
+ if (*cp == i_return_trace) {
+ /* Skip stack frame variables */
+ while (is_not_CP(*cpp)) cpp++;
+ cpp += 2; /* Skip return_trace parameters */
+ } else if (*cp == i_return_time_trace) {
+ /* Skip stack frame variables */
+ while (is_not_CP(*cpp)) cpp++;
+ cpp += 1; /* Skip return_time_trace parameters */
+ } else if (*cp == i_return_to_trace) {
+ /* A return_to trace message is going to be generated
+ * by normal means, so we do not have to.
+ */
+ cp = NULL;
+ break;
+ } else break;
+ }
+ }
+
+ /* Try to get these in the order
+ * they usually appear in normal code... */
+ if (is_non_value(result)) {
+ Uint reason = p->freason;
+ if (reason != TRAP) {
+ Eterm class;
+ Eterm value = p->fvalue;
+ DeclareTmpHeapNoproc(nocatch,3);
+ UseTmpHeapNoproc(3);
+ /* Expand error value like in handle_error() */
+ if (reason & EXF_ARGLIST) {
+ Eterm *tp;
+ ASSERT(is_tuple(value));
+ tp = tuple_val(value);
+ value = tp[1];
+ }
+ if ((reason & EXF_THROWN) && (p->catches <= 0)) {
+ value = TUPLE2(nocatch, am_nocatch, value);
+ reason = EXC_ERROR;
+ }
+ /* Note: expand_error_value() could theoretically
+ * allocate on the heap, but not for any error
+ * returned by a BIF, and it would do no harm,
+ * just be annoying.
+ */
+ value = expand_error_value(p, reason, value);
+ class = exception_tag[GET_EXC_CLASS(reason)];
+
+ if (flags_meta & MATCH_SET_EXCEPTION_TRACE) {
+ erts_trace_exception(p, ep->code, class, value,
+ &meta_tracer_pid);
+ }
+ if (flags & MATCH_SET_EXCEPTION_TRACE) {
+ erts_trace_exception(p, ep->code, class, value,
+ &p->tracer_proc);
+ }
+ if ((flags & MATCH_SET_RETURN_TO_TRACE) && p->catches > 0) {
+ /* can only happen if(local)*/
+ Eterm *ptr = p->stop;
+ ASSERT(is_CP(*ptr));
+ ASSERT(ptr <= STACK_START(p));
+ /* Search the nearest stack frame for a catch */
+ while (++ptr < STACK_START(p)) {
+ if (is_CP(*ptr)) break;
+ if (is_catch(*ptr)) {
+ if (applying) {
+ /* Apply of BIF, cp is in calling function */
+ if (cp) erts_trace_return_to(p, cp);
+ } else {
+ /* Direct bif call, I points into
+ * calling function */
+ erts_trace_return_to(p, I);
+ }
+ }
+ }
+ }
+ UnUseTmpHeapNoproc(3);
+ if ((flags_meta|flags) & MATCH_SET_EXCEPTION_TRACE) {
+ erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
+ p->trace_flags |= F_EXCEPTION_TRACE;
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR);
+ }
+ }
+ } else {
+ if (flags_meta & MATCH_SET_RX_TRACE) {
+ erts_trace_return(p, ep->code, result, &meta_tracer_pid);
+ }
+ /* MATCH_SET_RETURN_TO_TRACE cannot occur if(meta) */
+ if (flags & MATCH_SET_RX_TRACE) {
+ erts_trace_return(p, ep->code, result, &p->tracer_proc);
+ }
+ if (flags & MATCH_SET_RETURN_TO_TRACE) {
+ /* can only happen if(local)*/
+ if (applying) {
+ /* Apply of BIF, cp is in calling function */
+ if (cp) erts_trace_return_to(p, cp);
+ } else {
+ /* Direct bif call, I points into calling function */
+ erts_trace_return_to(p, I);
+ }
+ }
+ }
+ ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
+ return result;
+}
+
+static Eterm
+do_call_trace(Process* c_p, BeamInstr* I, Eterm* reg,
+ int local, Binary* ms, Eterm tracer_pid)
+{
+ Eterm* cpp;
+ int return_to_trace = 0;
+ BeamInstr w;
+ BeamInstr *cp_save;
+ Uint32 flags;
+ Uint need = 0;
+ Eterm* E = c_p->stop;
+
+ w = *c_p->cp;
+ if (w == (BeamInstr) BeamOp(op_return_trace)) {
+ cpp = &E[2];
+ } else if (w == (BeamInstr) BeamOp(op_i_return_to_trace)) {
+ return_to_trace = 1;
+ cpp = &E[0];
+ } else if (w == (BeamInstr) BeamOp(op_i_return_time_trace)) {
+ cpp = &E[0];
+ } else {
+ cpp = NULL;
+ }
+ if (cpp) {
+ for (;;) {
+ BeamInstr w = *cp_val(*cpp);
+ if (w == (BeamInstr) BeamOp(op_return_trace)) {
+ cpp += 3;
+ } else if (w == (BeamInstr) BeamOp(op_i_return_to_trace)) {
+ return_to_trace = 1;
+ cpp += 1;
+ } else if (w == (BeamInstr) BeamOp(op_i_return_time_trace)) {
+ cpp += 2;
+ } else {
+ break;
+ }
+ }
+ cp_save = c_p->cp;
+ c_p->cp = (BeamInstr *) cp_val(*cpp);
+ ASSERT(is_CP(*cpp));
+ }
+ ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
+ flags = erts_call_trace(c_p, I-3, ms, reg, local, &tracer_pid);
+ ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
+ if (cpp) {
+ c_p->cp = cp_save;
+ }
+
+ ASSERT(!ERTS_PROC_IS_EXITING(c_p));
+ if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) {
+ need += 1;
+ }
+ if (flags & MATCH_SET_RX_TRACE) {
+ need += 3;
+ }
+ if (need) {
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+ if (E - need < c_p->htop) {
+ (void) erts_garbage_collect(c_p, need, reg, I[-1]);
+ ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
+ E = c_p->stop;
+ }
+ }
+ if (flags & MATCH_SET_RETURN_TO_TRACE && !return_to_trace) {
+ E -= 1;
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+ E[0] = make_cp(c_p->cp);
+ c_p->cp = (BeamInstr *) beam_return_to_trace;
+ }
+ if (flags & MATCH_SET_RX_TRACE) {
+ E -= 3;
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+ ASSERT(is_CP((Eterm) (UWord) (I - 3)));
+ ASSERT(am_true == tracer_pid ||
+ is_internal_pid(tracer_pid) || is_internal_port(tracer_pid));
+ E[2] = make_cp(c_p->cp);
+ E[1] = tracer_pid;
+ E[0] = make_cp(I - 3); /* We ARE at the beginning of an
+ instruction,
+ the funcinfo is above i. */
+ c_p->cp = (flags & MATCH_SET_EXCEPTION_TRACE) ?
+ beam_exception_trace : beam_return_trace;
+ erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
+ c_p->trace_flags |= F_EXCEPTION_TRACE;
+ erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
+ }
+ c_p->stop = E;
+ return tracer_pid;
}
+void
+erts_trace_time_call(Process* c_p, BeamInstr* I, BpDataTime* bdt)
+{
+ Uint ms,s,us;
+ process_breakpoint_time_t *pbt = NULL;
+ bp_data_time_item_t sitem, *item = NULL;
+ bp_time_hash_t *h = NULL;
+ BpDataTime *pbdt = NULL;
+ ASSERT(c_p);
+ ASSERT(erts_smp_atomic32_read_acqb(&c_p->state) & ERTS_PSFLG_RUNNING);
-/*
- * SMP NOTE: Process p may have become exiting on return!
- */
-Uint32
-erts_bif_mtrace(Process *p, BeamInstr *pc, Eterm *args, int local,
- Eterm *tracer_pid) {
- BpData **bds = (BpData **) (pc)[-4];
- BpDataTrace *bdt = NULL;
+ /* get previous timestamp and breakpoint
+ * from the process psd */
+ pbt = ERTS_PROC_GET_CALL_TIME(c_p);
+ get_sys_now(&ms, &s, &us);
- ASSERT(tracer_pid);
- if (bds) {
- Eterm tpid1, tpid2;
- Uint32 flags;
- bdt = (BpDataTrace *)bds[bp_sched2ix_proc(p)];
+ /* get pbt
+ * timestamp = t0
+ * lookup bdt from code
+ * set ts0 to pbt
+ * add call count here?
+ */
+ if (pbt == 0) {
+ /* First call of process to instrumented function */
+ pbt = Alloc(sizeof(process_breakpoint_time_t));
+ (void *) ERTS_PROC_SET_CALL_TIME(c_p, ERTS_PROC_LOCK_MAIN, pbt);
+ } else {
+ ASSERT(pbt->pc);
+ /* add time to previous code */
+ bp_time_diff(&sitem, pbt, ms, s, us);
+ sitem.pid = c_p->id;
+ sitem.count = 0;
- ErtsSmpBPLock(bdt);
- tpid1 = tpid2 = bdt->tracer_pid;
- ErtsSmpBPUnlock(bdt);
+ /* previous breakpoint */
+ pbdt = get_time_break(pbt->pc);
- flags = erts_call_trace(p, pc-3/*mfa*/, bdt->match_spec, args,
- local, &tpid2);
- *tracer_pid = tpid2;
- if (tpid1 != tpid2) {
- ErtsSmpBPLock(bdt);
- bdt->tracer_pid = tpid2;
- ErtsSmpBPUnlock(bdt);
+ /* if null then the breakpoint was removed */
+ if (pbdt) {
+ h = &(pbdt->hash[bp_sched2ix_proc(c_p)]);
+
+ ASSERT(h);
+ ASSERT(h->item);
+
+ item = bp_hash_get(h, &sitem);
+ if (!item) {
+ item = bp_hash_put(h, &sitem);
+ } else {
+ BP_TIME_ADD(item, &sitem);
+ }
}
- return flags;
}
- *tracer_pid = NIL;
- return 0;
+
+ /* Add count to this code */
+ sitem.pid = c_p->id;
+ sitem.count = 1;
+ sitem.s_time = 0;
+ sitem.us_time = 0;
+
+ /* this breakpoint */
+ ASSERT(bdt);
+ h = &(bdt->hash[bp_sched2ix_proc(c_p)]);
+
+ ASSERT(h);
+ ASSERT(h->item);
+
+ item = bp_hash_get(h, &sitem);
+ if (!item) {
+ item = bp_hash_put(h, &sitem);
+ } else {
+ BP_TIME_ADD(item, &sitem);
+ }
+
+ pbt->pc = I;
+ pbt->ms = ms;
+ pbt->s = s;
+ pbt->us = us;
}
+void
+erts_trace_time_return(Process *p, BeamInstr *pc)
+{
+ Uint ms,s,us;
+ process_breakpoint_time_t *pbt = NULL;
+ bp_data_time_item_t sitem, *item = NULL;
+ bp_time_hash_t *h = NULL;
+ BpDataTime *pbdt = NULL;
+
+ ASSERT(p);
+ ASSERT(erts_smp_atomic32_read_acqb(&p->state) & ERTS_PSFLG_RUNNING);
+ /* get previous timestamp and breakpoint
+ * from the process psd */
+
+ pbt = ERTS_PROC_GET_CALL_TIME(p);
+ get_sys_now(&ms,&s,&us);
+
+ /* get pbt
+ * lookup bdt from code
+ * timestamp = t1
+ * get ts0 from pbt
+ * get item from bdt->hash[bp_hash(p->id)]
+ * ack diff (t1, t0) to item
+ */
+
+ if (pbt) {
+ /* might have been removed due to
+ * trace_pattern(false)
+ */
+ ASSERT(pbt->pc);
+
+ bp_time_diff(&sitem, pbt, ms, s, us);
+ sitem.pid = p->id;
+ sitem.count = 0;
+
+ /* previous breakpoint */
+ pbdt = get_time_break(pbt->pc);
+
+ /* beware, the trace_pattern might have been removed */
+ if (pbdt) {
+ h = &(pbdt->hash[bp_sched2ix_proc(p)]);
+
+ ASSERT(h);
+ ASSERT(h->item);
+
+ item = bp_hash_get(h, &sitem);
+ if (!item) {
+ item = bp_hash_put(h, &sitem);
+ } else {
+ BP_TIME_ADD(item, &sitem);
+ }
+ }
+
+ pbt->pc = pc;
+ pbt->ms = ms;
+ pbt->s = s;
+ pbt->us = us;
+ }
+}
int
-erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, Eterm *tracer_pid_ret) {
- BpDataTrace *bdt =
- (BpDataTrace *) is_break(pc, (BeamInstr) BeamOp(op_i_trace_breakpoint));
-
- if (bdt) {
+erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, int local)
+{
+ Uint flags = local ? ERTS_BPF_LOCAL_TRACE : ERTS_BPF_GLOBAL_TRACE;
+ GenericBpData* bp = check_break(pc, flags);
+
+ if (bp) {
if (match_spec_ret) {
- *match_spec_ret = bdt->match_spec;
+ *match_spec_ret = bp->local_ms;
}
- if (tracer_pid_ret) {
- ErtsSmpBPLock(bdt);
- *tracer_pid_ret = bdt->tracer_pid;
- ErtsSmpBPUnlock(bdt);
- }
- return !0;
+ return 1;
}
return 0;
}
int
-erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret, Eterm *tracer_pid_ret) {
- BpDataTrace *bdt =
- (BpDataTrace *) is_break(pc, (BeamInstr) BeamOp(op_i_mtrace_breakpoint));
+erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret,
+ Eterm *tracer_pid_ret)
+{
+ GenericBpData* bp = check_break(pc, ERTS_BPF_META_TRACE);
- if (bdt) {
+ if (bp) {
if (match_spec_ret) {
- *match_spec_ret = bdt->match_spec;
+ *match_spec_ret = bp->meta_ms;
}
if (tracer_pid_ret) {
- ErtsSmpBPLock(bdt);
- *tracer_pid_ret = bdt->tracer_pid;
- ErtsSmpBPUnlock(bdt);
+ *tracer_pid_ret =
+ (Eterm) erts_smp_atomic_read_nob(&bp->meta_pid->pid);
}
- return !0;
+ return 1;
}
return 0;
}
@@ -402,15 +1129,15 @@ erts_is_native_break(BeamInstr *pc) {
}
int
-erts_is_count_break(BeamInstr *pc, Sint *count_ret) {
- BpDataCount *bdc =
- (BpDataCount *) is_break(pc, (BeamInstr) BeamOp(op_i_count_breakpoint));
+erts_is_count_break(BeamInstr *pc, Uint *count_ret)
+{
+ GenericBpData* bp = check_break(pc, ERTS_BPF_COUNT);
- if (bdc) {
+ if (bp) {
if (count_ret) {
- *count_ret = (Sint) erts_smp_atomic_read_nob(&bdc->acount);
+ *count_ret = (Uint) erts_smp_atomic_read_nob(&bp->count->acount);
}
- return !0;
+ return 1;
}
return 0;
}
@@ -421,7 +1148,7 @@ int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *retval) {
Uint size;
Eterm *hp, t;
bp_data_time_item_t *item = NULL;
- BpDataTime *bdt = (BpDataTime *) is_break(pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
+ BpDataTime *bdt = get_time_break(pc);
if (bdt) {
if (retval) {
@@ -464,7 +1191,7 @@ int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *retval) {
}
bp_hash_delete(&hash);
}
- return !0;
+ return 1;
}
return 0;
@@ -478,15 +1205,16 @@ erts_find_local_func(Eterm mfa[3]) {
BeamInstr* code_ptr;
Uint i,n;
- if ((modp = erts_get_module(mfa[0])) == NULL)
+ if ((modp = erts_get_module(mfa[0], erts_active_code_ix())) == NULL)
return NULL;
- if ((code_base = (BeamInstr **) modp->code) == NULL)
+ if ((code_base = (BeamInstr **) modp->curr.code) == NULL)
return NULL;
n = (BeamInstr) code_base[MI_NUM_FUNCTIONS];
for (i = 0; i < n; ++i) {
code_ptr = code_base[MI_FUNCTIONS+i];
ASSERT(((BeamInstr) BeamOp(op_i_func_info_IaaI)) == code_ptr[0]);
- ASSERT(mfa[0] == ((Eterm) code_ptr[2]));
+ ASSERT(mfa[0] == ((Eterm) code_ptr[2]) ||
+ is_nil((Eterm) code_ptr[2]));
if (mfa[1] == ((Eterm) code_ptr[3]) &&
((BeamInstr) mfa[2]) == code_ptr[4]) {
return code_ptr + 5;
@@ -654,7 +1382,7 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
* the previous breakpoint.
*/
- pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
+ pbdt = get_time_break(pbt->pc);
if (pbdt) {
get_sys_now(&ms,&s,&us);
bp_time_diff(&sitem, pbt, ms, s, us);
@@ -692,669 +1420,259 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
} /* pbt */
}
-/* call_time breakpoint
- * Accumulated times are added to the previous bp,
- * not the current one. The current one is saved
- * for future reference.
- * The previous breakpoint is stored in the process it self, the psd.
- * We do not need to store in a stack frame.
- * There is no need for locking, each thread has its own
- * area in each bp to save data.
- * Since we need to diffrentiate between processes for each bp,
- * every bp has a hash (per thread) to process-bp statistics.
- * - egil
- */
-
-void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type) {
- Uint ms,s,us;
- process_breakpoint_time_t *pbt = NULL;
- bp_data_time_item_t sitem, *item = NULL;
- bp_time_hash_t *h = NULL;
- BpDataTime *pbdt = NULL;
-
- ASSERT(p);
- ASSERT(p->status == P_RUNNING);
-
- /* get previous timestamp and breakpoint
- * from the process psd */
-
- pbt = ERTS_PROC_GET_CALL_TIME(p);
- get_sys_now(&ms,&s,&us);
-
- switch(type) {
- /* get pbt
- * timestamp = t0
- * lookup bdt from code
- * set ts0 to pbt
- * add call count here?
- */
- case ERTS_BP_CALL_TIME_CALL:
- case ERTS_BP_CALL_TIME_TAIL_CALL:
-
- if (pbt) {
- ASSERT(pbt->pc);
- /* add time to previous code */
- bp_time_diff(&sitem, pbt, ms, s, us);
- sitem.pid = p->id;
- sitem.count = 0;
-
- /* previous breakpoint */
- pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
-
- /* if null then the breakpoint was removed */
- if (pbdt) {
- h = &(pbdt->hash[bp_sched2ix_proc(p)]);
-
- ASSERT(h);
- ASSERT(h->item);
-
- item = bp_hash_get(h, &sitem);
- if (!item) {
- item = bp_hash_put(h, &sitem);
- } else {
- BP_TIME_ADD(item, &sitem);
- }
- }
-
- } else {
- /* first call of process to instrumented function */
- pbt = Alloc(sizeof(process_breakpoint_time_t));
- (void *) ERTS_PROC_SET_CALL_TIME(p, ERTS_PROC_LOCK_MAIN, pbt);
- }
- /* add count to this code */
- sitem.pid = p->id;
- sitem.count = 1;
- sitem.s_time = 0;
- sitem.us_time = 0;
-
- /* this breakpoint */
- ASSERT(bdt);
- h = &(bdt->hash[bp_sched2ix_proc(p)]);
-
- ASSERT(h);
- ASSERT(h->item);
-
- item = bp_hash_get(h, &sitem);
- if (!item) {
- item = bp_hash_put(h, &sitem);
- } else {
- BP_TIME_ADD(item, &sitem);
- }
-
- pbt->pc = pc;
- pbt->ms = ms;
- pbt->s = s;
- pbt->us = us;
- break;
-
- case ERTS_BP_CALL_TIME_RETURN:
- /* get pbt
- * lookup bdt from code
- * timestamp = t1
- * get ts0 from pbt
- * get item from bdt->hash[bp_hash(p->id)]
- * ack diff (t1, t0) to item
- */
-
- if(pbt) {
- /* might have been removed due to
- * trace_pattern(false)
- */
- ASSERT(pbt->pc);
-
- bp_time_diff(&sitem, pbt, ms, s, us);
- sitem.pid = p->id;
- sitem.count = 0;
-
- /* previous breakpoint */
- pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
-
- /* beware, the trace_pattern might have been removed */
- if (pbdt) {
- h = &(pbdt->hash[bp_sched2ix_proc(p)]);
-
- ASSERT(h);
- ASSERT(h->item);
-
- item = bp_hash_get(h, &sitem);
- if (!item) {
- item = bp_hash_put(h, &sitem);
- } else {
- BP_TIME_ADD(item, &sitem);
- }
- }
-
- pbt->pc = pc;
- pbt->ms = ms;
- pbt->s = s;
- pbt->us = us;
- }
- break;
- default :
- ASSERT(0);
- /* will never happen */
- break;
- }
-}
-
-
/* *************************************************************************
** Local helpers
*/
-static int set_break(Eterm mfa[3], int specified,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid)
+static void
+set_break(BpFunctions* f, Binary *match_spec, Uint break_flags,
+ enum erts_break_op count_op, Eterm tracer_pid)
{
- Module *modp;
- int num_processed = 0;
- if (!specified) {
- /* Find and process all modules in the system... */
- int current;
- int last = module_code_size();
- for (current = 0; current < last; current++) {
- modp = module_code(current);
- ASSERT(modp != NULL);
- num_processed +=
- set_module_break(modp, mfa, specified,
- match_spec, break_op, count_op,
- tracer_pid);
- }
- } else {
- /* Process a single module */
- if ((modp = erts_get_module(mfa[0])) != NULL) {
- num_processed +=
- set_module_break(modp, mfa, specified,
- match_spec, break_op, count_op,
- tracer_pid);
- }
- }
- return num_processed;
-}
-
-static int set_module_break(Module *modp, Eterm mfa[3], int specified,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid) {
- BeamInstr** code_base;
- BeamInstr* code_ptr;
- int num_processed = 0;
- Uint i,n;
+ Uint i;
+ Uint n;
- ASSERT(break_op);
- ASSERT(modp);
- code_base = (BeamInstr **) modp->code;
- if (code_base == NULL) {
- return 0;
+ n = f->matched;
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = f->matching[i].pc;
+ set_function_break(pc, match_spec, break_flags,
+ count_op, tracer_pid);
}
- n = (BeamInstr) code_base[MI_NUM_FUNCTIONS];
- for (i = 0; i < n; ++i) {
- code_ptr = code_base[MI_FUNCTIONS+i];
- ASSERT(code_ptr[0] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
- if ((specified < 2 || mfa[1] == ((Eterm) code_ptr[3])) &&
- (specified < 3 || ((int) mfa[2]) == ((int) code_ptr[4]))) {
- BeamInstr *pc = code_ptr+5;
-
- num_processed +=
- set_function_break(modp, pc, BREAK_IS_ERL, match_spec,
- break_op, count_op, tracer_pid);
- }
- }
- return num_processed;
}
-static int set_function_break(Module *modp, BeamInstr *pc, int bif,
- Binary *match_spec, BeamInstr break_op,
- enum erts_break_op count_op, Eterm tracer_pid) {
-
- BeamInstr **code_base = NULL;
- BpData *bd, **r, ***rs;
- size_t size;
- Uint ix = 0;
-
- if (bif == BREAK_IS_ERL) {
- code_base = (BeamInstr **)modp->code;
- ASSERT(code_base);
- ASSERT(code_base <= (BeamInstr **)pc);
- ASSERT((BeamInstr **)pc < code_base + (modp->code_length/sizeof(BeamInstr *)));
- } else {
- ASSERT(*pc == (BeamInstr) em_apply_bif);
- ASSERT(modp == NULL);
+static void
+set_function_break(BeamInstr *pc, Binary *match_spec, Uint break_flags,
+ enum erts_break_op count_op, Eterm tracer_pid)
+{
+ GenericBp* g;
+ GenericBpData* bp;
+ Uint common;
+ ErtsBpIndex ix = erts_staging_bp_ix();
+
+ ERTS_SMP_LC_ASSERT(erts_is_code_ix_locked());
+ g = (GenericBp *) pc[-4];
+ if (g == 0) {
+ int i;
+ if (count_op == erts_break_reset || count_op == erts_break_stop) {
+ /* Do not insert a new breakpoint */
+ return;
+ }
+ g = Alloc(sizeof(GenericBp));
+ g->orig_instr = *pc;
+ for (i = 0; i < ERTS_NUM_BP_IX; i++) {
+ g->data[i].flags = 0;
+ }
+ pc[-4] = (BeamInstr) g;
}
+ bp = &g->data[ix];
/*
- * Currently no trace support for native code.
+ * If we are changing an existing breakpoint, clean up old data.
*/
- if (erts_is_native_break(pc)) {
- return 0;
- }
- /* Do not allow two breakpoints of the same kind */
- if ( (bd = is_break(pc, break_op))) {
- if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint)
- || break_op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) {
-
- BpDataTrace *bdt = (BpDataTrace *) bd;
- Binary *old_match_spec;
-
- /* Update match spec and tracer */
- MatchSetRef(match_spec);
- ErtsSmpBPLock(bdt);
- old_match_spec = bdt->match_spec;
- bdt->match_spec = match_spec;
- bdt->tracer_pid = tracer_pid;
- ErtsSmpBPUnlock(bdt);
- MatchSetUnref(old_match_spec);
- } else {
- BpDataCount *bdc = (BpDataCount *) bd;
- erts_aint_t count = 0;
- erts_aint_t res = 0;
-
- ASSERT(! match_spec);
- ASSERT(is_nil(tracer_pid));
-
- if (break_op == (BeamInstr) BeamOp(op_i_count_breakpoint)) {
- if (count_op == erts_break_stop) {
- count = erts_smp_atomic_read_nob(&bdc->acount);
- if (count >= 0) {
- while(1) {
- res = erts_smp_atomic_cmpxchg_nob(&bdc->acount, -count - 1, count);
- if ((res == count) || count < 0) break;
- count = res;
- }
- }
- } else {
- /* Reset call counter */
- erts_smp_atomic_set_nob(&bdc->acount, 0);
- }
-
- } else if (break_op == (BeamInstr) BeamOp(op_i_time_breakpoint)) {
- BpDataTime *bdt = (BpDataTime *) bd;
- Uint i = 0;
-
- ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
-
- if (count_op == erts_break_stop) {
- bdt->pause = 1;
- } else {
- bdt->pause = 0;
- for (i = 0; i < bdt->n; i++) {
- bp_hash_delete(&(bdt->hash[i]));
- bp_hash_init(&(bdt->hash[i]), 32);
- }
- }
- } else {
- ASSERT (! count_op);
- }
- }
- return 1;
- }
- if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint) ||
- break_op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) {
- size = sizeof(BpDataTrace);
- } else {
- ASSERT(! match_spec);
- ASSERT(is_nil(tracer_pid));
- if (break_op == (BeamInstr) BeamOp(op_i_count_breakpoint)) {
- if (count_op == erts_break_reset || count_op == erts_break_stop) {
- /* Do not insert a new breakpoint */
- return 1;
- }
- size = sizeof(BpDataCount);
- } else if (break_op == (BeamInstr) BeamOp(op_i_time_breakpoint)) {
- if (count_op == erts_break_reset || count_op == erts_break_stop) {
- /* Do not insert a new breakpoint */
- return 1;
- }
- size = sizeof(BpDataTime);
+ common = break_flags & bp->flags;
+ if (common & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ MatchSetUnref(bp->local_ms);
+ } else if (common & ERTS_BPF_META_TRACE) {
+ MatchSetUnref(bp->meta_ms);
+ bp_meta_unref(bp->meta_pid);
+ } else if (common & ERTS_BPF_COUNT) {
+ if (count_op == erts_break_stop) {
+ bp->flags &= ~ERTS_BPF_COUNT_ACTIVE;
} else {
- ASSERT(! count_op);
- ASSERT(break_op == (BeamInstr) BeamOp(op_i_debug_breakpoint));
- size = sizeof(BpDataDebug);
+ bp->flags |= ERTS_BPF_COUNT_ACTIVE;
+ erts_smp_atomic_set_nob(&bp->count->acount, 0);
}
- }
- rs = (BpData ***) (pc-4);
- if (! *rs) {
- size_t ssize = sizeof(BeamInstr) * erts_no_schedulers;
- *rs = (BpData **) Alloc(ssize);
- sys_memzero(*rs, ssize);
- }
-
- r = &((*rs)[0]);
-
- if (! *r) {
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_trace_breakpoint));
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_mtrace_breakpoint));
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_debug_breakpoint));
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_count_breakpoint));
- ASSERT(*pc != (BeamInstr) BeamOp(op_i_time_breakpoint));
- /* First breakpoint; create singleton ring */
- bd = Alloc(size);
- BpInit(bd, *pc);
- *r = bd;
- if (bif == BREAK_IS_ERL) {
- *pc = break_op;
- }
- } else {
- ASSERT(*pc == (BeamInstr) BeamOp(op_i_trace_breakpoint) ||
- *pc == (BeamInstr) BeamOp(op_i_mtrace_breakpoint) ||
- *pc == (BeamInstr) BeamOp(op_i_debug_breakpoint) ||
- *pc == (BeamInstr) BeamOp(op_i_time_breakpoint) ||
- *pc == (BeamInstr) BeamOp(op_i_count_breakpoint) ||
- *pc == (BeamInstr) em_apply_bif);
- if (*pc == (BeamInstr) BeamOp(op_i_debug_breakpoint)) {
- /* Debug bp must be last, so if it is also first;
- * it must be singleton. */
- ASSERT(BpSingleton(*r));
- /* Insert new bp first in the ring, i.e second to last. */
- bd = Alloc(size);
- BpInitAndSpliceNext(bd, *pc, *r);
- if (bif == BREAK_IS_ERL) {
- *pc = break_op;
- }
- } else if ((*r)->prev->orig_instr
- == (BeamInstr) BeamOp(op_i_debug_breakpoint)) {
- /* Debug bp last in the ring; insert new second to last. */
- bd = Alloc(size);
- BpInitAndSplicePrev(bd, (*r)->prev->orig_instr, *r);
- (*r)->prev->orig_instr = break_op;
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ return;
+ } else if (common & ERTS_BPF_TIME_TRACE) {
+ BpDataTime* bdt = bp->time;
+ Uint i = 0;
+
+ if (count_op == erts_break_stop) {
+ bp->flags &= ~ERTS_BPF_TIME_TRACE_ACTIVE;
} else {
- /* Just insert last in the ring */
- bd = Alloc(size);
- BpInitAndSpliceNext(bd, (*r)->orig_instr, *r);
- (*r)->orig_instr = break_op;
- *r = bd;
+ bp->flags |= ERTS_BPF_TIME_TRACE_ACTIVE;
+ for (i = 0; i < bdt->n; i++) {
+ bp_hash_delete(&(bdt->hash[i]));
+ bp_hash_init(&(bdt->hash[i]), 32);
+ }
}
- }
- for (ix = 1; ix < erts_no_schedulers; ++ix) {
- (*rs)[ix] = (*rs)[0];
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ return;
}
- bd->this_instr = break_op;
- /* Init the bp type specific data */
- if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint) ||
- break_op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) {
-
- BpDataTrace *bdt = (BpDataTrace *) bd;
-
- MatchSetRef(match_spec);
- bdt->match_spec = match_spec;
- bdt->tracer_pid = tracer_pid;
- } else if (break_op == (BeamInstr) BeamOp(op_i_time_breakpoint)) {
- BpDataTime *bdt = (BpDataTime *) bd;
- Uint i = 0;
-
- bdt->pause = 0;
- bdt->n = erts_no_schedulers;
- bdt->hash = Alloc(sizeof(bp_time_hash_t)*(bdt->n));
+ /*
+ * Initialize the new breakpoint data.
+ */
+ if (break_flags & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ MatchSetRef(match_spec);
+ bp->local_ms = match_spec;
+ } else if (break_flags & ERTS_BPF_META_TRACE) {
+ BpMetaPid* bmp;
+ MatchSetRef(match_spec);
+ bp->meta_ms = match_spec;
+ bmp = Alloc(sizeof(BpMetaPid));
+ erts_refc_init(&bmp->refc, 1);
+ erts_smp_atomic_init_nob(&bmp->pid, tracer_pid);
+ bp->meta_pid = bmp;
+ } else if (break_flags & ERTS_BPF_COUNT) {
+ BpCount* bcp;
+
+ ASSERT((bp->flags & ERTS_BPF_COUNT) == 0);
+ bcp = Alloc(sizeof(BpCount));
+ erts_refc_init(&bcp->refc, 1);
+ erts_smp_atomic_init_nob(&bcp->acount, 0);
+ bp->count = bcp;
+ } else if (break_flags & ERTS_BPF_TIME_TRACE) {
+ BpDataTime* bdt;
+ int i;
+
+ ASSERT((bp->flags & ERTS_BPF_TIME_TRACE) == 0);
+ bdt = Alloc(sizeof(BpDataTime));
+ erts_refc_init(&bdt->refc, 1);
+ bdt->n = erts_no_schedulers;
+ bdt->hash = Alloc(sizeof(bp_time_hash_t)*(bdt->n));
for (i = 0; i < bdt->n; i++) {
bp_hash_init(&(bdt->hash[i]), 32);
}
- } else if (break_op == (BeamInstr) BeamOp(op_i_count_breakpoint)) {
- BpDataCount *bdc = (BpDataCount *) bd;
- erts_smp_atomic_init_nob(&bdc->acount, 0);
+ bp->time = bdt;
}
- if (bif == BREAK_IS_ERL) {
- ++(*(BeamInstr*)&code_base[MI_NUM_BREAKPOINTS]);
+ bp->flags |= break_flags;
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+}
+
+static void
+clear_break(BpFunctions* f, Uint break_flags)
+{
+ Uint i;
+ Uint n;
+
+ n = f->matched;
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = f->matching[i].pc;
+ clear_function_break(pc, break_flags);
}
- return 1;
}
-static int clear_break(Eterm mfa[3], int specified, BeamInstr break_op)
+static int
+clear_function_break(BeamInstr *pc, Uint break_flags)
{
- int num_processed = 0;
- Module *modp;
+ GenericBp* g;
+ GenericBpData* bp;
+ Uint common;
+ ErtsBpIndex ix = erts_staging_bp_ix();
- if (!specified) {
- /* Iterate over all modules */
- int current;
- int last = module_code_size();
+ ERTS_SMP_LC_ASSERT(erts_is_code_ix_locked());
- for (current = 0; current < last; current++) {
- modp = module_code(current);
- ASSERT(modp != NULL);
- num_processed += clear_module_break(modp, mfa, specified, break_op);
- }
- } else {
- /* Process a single module */
- if ((modp = erts_get_module(mfa[0])) != NULL) {
- num_processed +=
- clear_module_break(modp, mfa, specified, break_op);
- }
+ if ((g = (GenericBp *) pc[-4]) == 0) {
+ return 1;
}
- return num_processed;
-}
-static int clear_module_break(Module *m, Eterm mfa[3], int specified,
- BeamInstr break_op) {
- BeamInstr** code_base;
- BeamInstr* code_ptr;
- int num_processed = 0;
- Uint i;
- BeamInstr n;
-
- ASSERT(m);
- code_base = (BeamInstr **) m->code;
- if (code_base == NULL) {
- return 0;
+ bp = &g->data[ix];
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ common = bp->flags & break_flags;
+ bp->flags &= ~break_flags;
+ if (common & (ERTS_BPF_LOCAL_TRACE|ERTS_BPF_GLOBAL_TRACE)) {
+ MatchSetUnref(bp->local_ms);
}
- n = (BeamInstr) code_base[MI_NUM_FUNCTIONS];
- for (i = 0; i < n; ++i) {
- code_ptr = code_base[MI_FUNCTIONS+i];
- if ((specified < 2 || mfa[1] == ((Eterm) code_ptr[3])) &&
- (specified < 3 || ((int) mfa[2]) == ((int) code_ptr[4]))) {
- BeamInstr *pc = code_ptr + 5;
-
- num_processed +=
- clear_function_break(m, pc, BREAK_IS_ERL, break_op);
- }
+ if (common & ERTS_BPF_META_TRACE) {
+ MatchSetUnref(bp->meta_ms);
+ }
+ if (common & ERTS_BPF_COUNT) {
+ ASSERT((bp->flags & ERTS_BPF_COUNT_ACTIVE) == 0);
+ bp_count_unref(bp->count);
+ }
+ if (common & ERTS_BPF_TIME_TRACE) {
+ ASSERT((bp->flags & ERTS_BPF_TIME_TRACE_ACTIVE) == 0);
+ bp_time_unref(bp->time);
}
- return num_processed;
-}
-static int clear_function_break(Module *m, BeamInstr *pc, int bif, BeamInstr break_op) {
- BpData *bd;
- Uint ix = 0;
- BeamInstr **code_base = NULL;
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ return 1;
+}
- if (bif == BREAK_IS_ERL) {
- code_base = (BeamInstr **)m->code;
- ASSERT(code_base);
- ASSERT(code_base <= (BeamInstr **)pc);
- ASSERT((BeamInstr **)pc < code_base + (m->code_length/sizeof(BeamInstr *)));
- } else {
- ASSERT(*pc == (BeamInstr) em_apply_bif);
- ASSERT(m == NULL);
+static void
+bp_meta_unref(BpMetaPid* bmp)
+{
+ if (erts_refc_dectest(&bmp->refc, 0) <= 0) {
+ Free(bmp);
}
+}
- /*
- * Currently no trace support for native code.
- */
- if (erts_is_native_break(pc)) {
- return 0;
+static void
+bp_count_unref(BpCount* bcp)
+{
+ if (erts_refc_dectest(&bcp->refc, 0) <= 0) {
+ Free(bcp);
}
+}
- while ( (bd = is_break(pc, break_op))) {
- /* Remove all breakpoints of this type.
- * There should be only one of each type,
- * but break_op may be 0 which matches any type.
+static void
+bp_time_unref(BpDataTime* bdt)
+{
+ if (erts_refc_dectest(&bdt->refc, 0) <= 0) {
+ Uint i = 0;
+ Uint j = 0;
+ Process *h_p = NULL;
+ bp_data_time_item_t* item = NULL;
+ process_breakpoint_time_t* pbt = NULL;
+
+ /* remove all psd associated with the hash
+ * and then delete the hash.
+ * ... sigh ...
*/
- BeamInstr op;
- BpData ***rs = (BpData ***) (pc - 4);
- BpData **r = NULL;
-
-#ifdef DEBUG
- for (ix = 1; ix < erts_no_schedulers; ++ix) {
- ASSERT((*rs)[ix] == (*rs)[0]);
- }
-#endif
-
- r = &((*rs)[0]);
-
- ASSERT(*r);
- /* Find opcode for this breakpoint */
- if (break_op) {
- op = break_op;
- } else {
- if (bd == (*r)->next) {
- /* First breakpoint in ring */
- op = *pc;
- } else {
- op = bd->prev->orig_instr;
- }
- }
- if (BpSingleton(bd)) {
- ASSERT(*r == bd);
- /* Only one breakpoint to remove */
- if (bif == BREAK_IS_ERL) {
- *pc = bd->orig_instr;
- }
- Free(*rs);
- *rs = NULL;
- } else {
- BpData *bd_prev = bd->prev;
-
- BpSpliceNext(bd, bd_prev);
- ASSERT(BpSingleton(bd));
- if (bd == *r) {
- /* We removed the last breakpoint in the ring */
- *r = bd_prev;
- bd_prev->orig_instr = bd->orig_instr;
- } else if (bd_prev == *r) {
- /* We removed the first breakpoint in the ring */
- if (bif == BREAK_IS_ERL) {
- *pc = bd->orig_instr;
- }
- } else {
- bd_prev->orig_instr = bd->orig_instr;
- }
- }
- if (op == (BeamInstr) BeamOp(op_i_trace_breakpoint) ||
- op == (BeamInstr) BeamOp(op_i_mtrace_breakpoint)) {
-
- BpDataTrace *bdt = (BpDataTrace *) bd;
- MatchSetUnref(bdt->match_spec);
- }
- if (op == (BeamInstr) BeamOp(op_i_time_breakpoint)) {
- BpDataTime *bdt = (BpDataTime *) bd;
- Uint i = 0;
- Uint j = 0;
- Process *h_p = NULL;
- bp_data_time_item_t *item = NULL;
- process_breakpoint_time_t *pbt = NULL;
-
- /* remove all psd associated with the hash
- * and then delete the hash.
- * ... sigh ...
- */
- for( i = 0; i < bdt->n; ++i) {
- if (bdt->hash[i].used) {
- for (j = 0; j < bdt->hash[i].n; ++j) {
- item = &(bdt->hash[i].item[j]);
- if (item->pid != NIL) {
- h_p = process_tab[internal_pid_index(item->pid)];
- if (h_p) {
- pbt = ERTS_PROC_SET_CALL_TIME(h_p, ERTS_PROC_LOCK_MAIN, NULL);
- if (pbt) {
- Free(pbt);
- }
+ for (i = 0; i < bdt->n; ++i) {
+ if (bdt->hash[i].used) {
+ for (j = 0; j < bdt->hash[i].n; ++j) {
+ item = &(bdt->hash[i].item[j]);
+ if (item->pid != NIL) {
+ h_p = erts_pid2proc(NULL, 0, item->pid,
+ ERTS_PROC_LOCK_MAIN);
+ if (h_p) {
+ pbt = ERTS_PROC_SET_CALL_TIME(h_p,
+ ERTS_PROC_LOCK_MAIN,
+ NULL);
+ if (pbt) {
+ Free(pbt);
}
+ erts_smp_proc_unlock(h_p, ERTS_PROC_LOCK_MAIN);
}
}
}
- bp_hash_delete(&(bdt->hash[i]));
}
- Free(bdt->hash);
- bdt->hash = NULL;
- bdt->n = 0;
+ bp_hash_delete(&(bdt->hash[i]));
}
- Free(bd);
- if (bif == BREAK_IS_ERL) {
- ASSERT(((BeamInstr) code_base[MI_NUM_BREAKPOINTS]) > 0);
- --(*(BeamInstr*)&code_base[MI_NUM_BREAKPOINTS]);
- }
- if (*rs) {
- for (ix = 1; ix < erts_no_schedulers; ++ix) {
- (*rs)[ix] = (*rs)[0];
- }
- }
- } /* while bd != NULL */
- return 1;
+ Free(bdt->hash);
+ Free(bdt);
+ }
}
-
-
-/*
-** Searches (linear forward) the breakpoint ring for a specified opcode
-** and returns a pointer to the breakpoint data structure or NULL if
-** not found. If the specified opcode is 0, the last breakpoint is
-** returned. The program counter must point to the first executable
-** (breakpoint) instruction of the function.
-*/
-
-BpData *erts_get_time_break(Process *p, BeamInstr *pc) {
- return get_break(p, pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
+static BpDataTime*
+get_time_break(BeamInstr *pc)
+{
+ GenericBpData* bp = check_break(pc, ERTS_BPF_TIME_TRACE);
+ return bp ? bp->time : 0;
}
-static BpData *get_break(Process *p, BeamInstr *pc, BeamInstr break_op) {
- ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
- if (! erts_is_native_break(pc)) {
- BpData **rs = (BpData **) pc[-4];
- BpData *bd = NULL, *ebd = NULL;
-
- if (! rs) {
- return NULL;
- }
-
- bd = ebd = rs[bp_sched2ix_proc(p)];
- ASSERT(bd);
- if (bd->this_instr == break_op) {
- return bd;
- }
-
- bd = bd->next;
- while (bd != ebd) {
- ASSERT(bd);
- if (bd->this_instr == break_op) {
- ASSERT(bd);
- return bd;
- }
- bd = bd->next;
- }
- }
- return NULL;
-}
+static GenericBpData*
+check_break(BeamInstr *pc, Uint break_flags)
+{
+ GenericBp* g = (GenericBp *) pc[-4];
-static BpData *is_break(BeamInstr *pc, BeamInstr break_op) {
- BpData **rs;
- BpData *bd = NULL, *ebd = NULL;
ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
-
if (erts_is_native_break(pc)) {
- return NULL;
- }
- rs = (BpData **) pc[-4];
- if (! rs) {
- return NULL;
- }
-
- bd = ebd = rs[erts_bp_sched2ix()];
- ASSERT(bd);
- if ( (break_op == 0) || (bd->this_instr == break_op)) {
- return bd;
+ return 0;
}
-
- bd = bd->next;
- while (bd != ebd) {
- ASSERT(bd);
- if (bd->this_instr == break_op) {
- ASSERT(bd);
- return bd;
+ if (g) {
+ GenericBpData* bp = &g->data[erts_active_bp_ix()];
+ ASSERT((bp->flags & ~ERTS_BPF_ALL) == 0);
+ if (bp->flags & break_flags) {
+ return bp;
}
- bd = bd->next;
}
- return NULL;
+ return 0;
}
diff --git a/erts/emulator/beam/beam_bp.h b/erts/emulator/beam/beam_bp.h
index 167069552f..28aaaa462a 100644
--- a/erts/emulator/beam/beam_bp.h
+++ b/erts/emulator/beam/beam_bp.h
@@ -25,77 +25,6 @@
#include "erl_vm.h"
#include "global.h"
-
-
-/* A couple of gotchas:
- *
- * The breakpoint structure from BeamInstr,
- * In beam_emu where the instruction counter pointer, I (or pc),
- * points to the *current* instruction. At that time, if the instruction
- * is a breakpoint instruction the pc looks like the following,
- *
- * I[-5] | op_i_func_info_IaaI | scheduler specific entries
- * I[-4] | BpData** bpa | --> | BpData * bdas1 | ... | BpData * bdasN |
- * I[-3] | Tagged Module | | |
- * I[-2] | Tagged Function | V V
- * I[-1] | Arity | BpData -> BpData -> BpData -> BpData
- * I[0] | The bp instruction | ^ * the bp wheel * |
- * |------------------------------
- *
- * Common struct to all bp_data_*
- *
- * 1) The type of bp_data structure in the ring is deduced from the
- * orig_instr field of the structure _before_ in the ring, except for
- * the first structure in the ring that has its instruction in
- * pc[0] of the code to execute.
- * This is valid as long as you don't search for the function while it is
- * being executed by something else. Or is in the middle of its rotation for
- * any other reason.
- * A key, the bp beam instruction, is included for this reason.
- *
- * 2) pc[-4][sched_id - 1] points to the _last_ structure in the ring before the
- * breakpoints are being executed.
- *
- * So, as an example, when a breakpointed function starts to execute,
- * the first instruction that is a breakpoint instruction at pc[0] finds
- * its data at ((BpData **) pc[-4][sched_id - 1])->next and has to cast that pointer
- * to the correct bp_data type.
-*/
-
-typedef struct bp_data {
- struct bp_data *next; /* Doubly linked ring pointers */
- struct bp_data *prev; /* -"- */
- BeamInstr orig_instr; /* The original instruction to execute */
- BeamInstr this_instr; /* key */
-} BpData;
-/*
-** All the following bp_data_.. structs must begin the same way
-*/
-
-typedef struct bp_data_trace {
- struct bp_data *next;
- struct bp_data *prev;
- BeamInstr orig_instr;
- BeamInstr this_instr; /* key */
- Binary *match_spec;
- Eterm tracer_pid;
-} BpDataTrace;
-
-typedef struct bp_data_debug {
- struct bp_data *next;
- struct bp_data *prev;
- BeamInstr orig_instr;
- BeamInstr this_instr; /* key */
-} BpDataDebug;
-
-typedef struct bp_data_count { /* Call count */
- struct bp_data *next;
- struct bp_data *prev;
- BeamInstr orig_instr;
- BeamInstr this_instr; /* key */
- erts_smp_atomic_t acount;
-} BpDataCount;
-
typedef struct {
Eterm pid;
Sint count;
@@ -110,13 +39,9 @@ typedef struct {
} bp_time_hash_t;
typedef struct bp_data_time { /* Call time */
- struct bp_data *next;
- struct bp_data *prev;
- BeamInstr orig_instr;
- BeamInstr this_instr; /* key */
- Uint pause;
- Uint n;
- bp_time_hash_t *hash;
+ Uint n;
+ bp_time_hash_t *hash;
+ erts_refc_t refc;
} BpDataTime;
typedef struct {
@@ -126,64 +51,42 @@ typedef struct {
BeamInstr *pc;
} process_breakpoint_time_t; /* used within psd */
-extern erts_smp_spinlock_t erts_bp_lock;
+typedef struct {
+ erts_smp_atomic_t acount;
+ erts_refc_t refc;
+} BpCount;
+
+typedef struct {
+ erts_smp_atomic_t pid;
+ erts_refc_t refc;
+} BpMetaPid;
+
+typedef struct generic_bp_data {
+ Uint flags;
+ Binary* local_ms; /* Match spec for local call trace */
+ Binary* meta_ms; /* Match spec for meta trace */
+ BpMetaPid* meta_pid; /* Meta trace pid */
+ BpCount* count; /* For call count */
+ BpDataTime* time; /* For time trace */
+} GenericBpData;
+
+#define ERTS_NUM_BP_IX 2
+
+typedef struct generic_bp {
+ BeamInstr orig_instr;
+ GenericBpData data[ERTS_NUM_BP_IX];
+} GenericBp;
#define ERTS_BP_CALL_TIME_SCHEDULE_IN (0)
#define ERTS_BP_CALL_TIME_SCHEDULE_OUT (1)
#define ERTS_BP_CALL_TIME_SCHEDULE_EXITING (2)
-#define ERTS_BP_CALL_TIME_CALL (0)
-#define ERTS_BP_CALL_TIME_RETURN (1)
-#define ERTS_BP_CALL_TIME_TAIL_CALL (2)
-
-#ifdef ERTS_SMP
-#define ErtsSmpBPLock(BDC) erts_smp_spin_lock(&erts_bp_lock)
-#define ErtsSmpBPUnlock(BDC) erts_smp_spin_unlock(&erts_bp_lock)
-#else
-#define ErtsSmpBPLock(BDC)
-#define ErtsSmpBPUnlock(BDC)
-#endif
-
#ifdef ERTS_SMP
#define bp_sched2ix_proc(p) ((p)->scheduler_data->no - 1)
#else
#define bp_sched2ix_proc(p) (0)
#endif
-#define ErtsCountBreak(p, pc,instr_result) \
-do { \
- BpData **bds = (BpData **) (pc)[-4]; \
- BpDataCount *bdc = NULL; \
- Uint ix = bp_sched2ix_proc( (p) ); \
- erts_aint_t count = 0; \
- \
- ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \
- ASSERT(bds); \
- bdc = (BpDataCount *) bds[ix]; \
- bdc = (BpDataCount *) bdc->next; \
- ASSERT(bdc); \
- bds[ix] = (BpData *) bdc; \
- count = erts_smp_atomic_read_nob(&bdc->acount); \
- if (count >= 0) erts_smp_atomic_inc_nob(&bdc->acount); \
- *(instr_result) = bdc->orig_instr; \
-} while (0)
-
-#define ErtsBreakSkip(p, pc,instr_result) \
-do { \
- BpData **bds = (BpData **) (pc)[-4]; \
- BpData *bd = NULL; \
- Uint ix = bp_sched2ix_proc( (p) ); \
- \
- ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \
- ASSERT(bds); \
- bd = bds[ix]; \
- ASSERT(bd); \
- bd = bd->next; \
- ASSERT(bd); \
- bds[ix] = bd; \
- *(instr_result) = bd->orig_instr; \
-} while (0)
-
enum erts_break_op{
erts_break_nop = 0, /* Must be false */
erts_break_set = !0, /* Must be true */
@@ -191,7 +94,17 @@ enum erts_break_op{
erts_break_stop
};
+typedef Uint32 ErtsBpIndex;
+typedef struct {
+ BeamInstr* pc;
+ Module* mod;
+} BpFunction;
+
+typedef struct {
+ Uint matched; /* Number matched */
+ BpFunction* matching; /* Matching functions */
+} BpFunctions;
/*
** Function interface exported from beam_bp.c
@@ -199,49 +112,66 @@ enum erts_break_op{
void erts_bp_init(void);
-int erts_set_trace_break(Eterm mfa[3], int specified, Binary *match_spec,
- Eterm tracer_pid);
-int erts_clear_trace_break(Eterm mfa[3], int specified);
-int erts_set_mtrace_break(Eterm mfa[3], int specified, Binary *match_spec,
+void erts_prepare_bp_staging(void);
+void erts_commit_staged_bp(void);
+
+ERTS_GLB_INLINE ErtsBpIndex erts_active_bp_ix(void);
+ERTS_GLB_INLINE ErtsBpIndex erts_staging_bp_ix(void);
+
+void erts_bp_match_functions(BpFunctions* f, Eterm mfa[3], int specified);
+void erts_bp_match_export(BpFunctions* f, Eterm mfa[3], int specified);
+void erts_bp_free_matched_functions(BpFunctions* f);
+
+void erts_install_breakpoints(BpFunctions* f);
+void erts_uninstall_breakpoints(BpFunctions* f);
+void erts_consolidate_bp_data(BpFunctions* f, int local);
+void erts_consolidate_bif_bp_data(void);
+
+void erts_set_trace_break(BpFunctions *f, Binary *match_spec);
+void erts_clear_trace_break(BpFunctions *f);
+
+void erts_set_call_trace_bif(BeamInstr *pc, Binary *match_spec, int local);
+void erts_clear_call_trace_bif(BeamInstr *pc, int local);
+
+void erts_set_mtrace_break(BpFunctions *f, Binary *match_spec,
Eterm tracer_pid);
-int erts_clear_mtrace_break(Eterm mfa[3], int specified);
+void erts_clear_mtrace_break(BpFunctions *f);
void erts_set_mtrace_bif(BeamInstr *pc, Binary *match_spec,
Eterm tracer_pid);
void erts_clear_mtrace_bif(BeamInstr *pc);
-int erts_set_debug_break(Eterm mfa[3], int specified);
-int erts_clear_debug_break(Eterm mfa[3], int specified);
-int erts_set_count_break(Eterm mfa[3], int specified, enum erts_break_op);
-int erts_clear_count_break(Eterm mfa[3], int specified);
+void erts_set_debug_break(BpFunctions *f);
+void erts_clear_debug_break(BpFunctions *f);
+void erts_set_count_break(BpFunctions *f, enum erts_break_op);
+void erts_clear_count_break(BpFunctions *f);
-int erts_clear_break(Eterm mfa[3], int specified);
+
+void erts_clear_all_breaks(BpFunctions* f);
int erts_clear_module_break(Module *modp);
-int erts_clear_function_break(Module *modp, BeamInstr *pc);
+void erts_clear_export_break(Module *modp, BeamInstr* pc);
+BeamInstr erts_generic_breakpoint(Process* c_p, BeamInstr* I, Eterm* reg);
BeamInstr erts_trace_break(Process *p, BeamInstr *pc, Eterm *args,
Uint32 *ret_flags, Eterm *tracer_pid);
-Uint32 erts_bif_mtrace(Process *p, BeamInstr *pc, Eterm *args,
- int local, Eterm *tracer_pid);
-int erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret,
- Eterm *tracer_pid_ret);
+int erts_is_trace_break(BeamInstr *pc, Binary **match_spec_ret, int local);
int erts_is_mtrace_break(BeamInstr *pc, Binary **match_spec_ret,
Eterm *tracer_pid_rte);
int erts_is_mtrace_bif(BeamInstr *pc, Binary **match_spec_ret,
Eterm *tracer_pid_ret);
int erts_is_native_break(BeamInstr *pc);
-int erts_is_count_break(BeamInstr *pc, Sint *count_ret);
+int erts_is_count_break(BeamInstr *pc, Uint *count_ret);
int erts_is_time_break(Process *p, BeamInstr *pc, Eterm *call_time);
-void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type);
+void erts_trace_time_call(Process* c_p, BeamInstr* pc, BpDataTime* bdt);
+void erts_trace_time_return(Process* c_p, BeamInstr* pc);
void erts_schedule_time_break(Process *p, Uint out);
-int erts_set_time_break(Eterm mfa[3], int specified, enum erts_break_op);
-int erts_clear_time_break(Eterm mfa[3], int specified);
+void erts_set_time_break(BpFunctions *f, enum erts_break_op);
+void erts_clear_time_break(BpFunctions *f);
int erts_is_time_trace_bif(Process *p, BeamInstr *pc, Eterm *call_time);
void erts_set_time_trace_bif(BeamInstr *pc, enum erts_break_op);
void erts_clear_time_trace_bif(BeamInstr *pc);
-BpData *erts_get_time_break(Process *p, BeamInstr *pc);
BeamInstr *erts_find_local_func(Eterm mfa[3]);
@@ -258,6 +188,19 @@ ERTS_GLB_INLINE Uint erts_bp_sched2ix(void)
return 0;
#endif
}
+
+extern erts_smp_atomic32_t erts_active_bp_index;
+extern erts_smp_atomic32_t erts_staging_bp_index;
+
+ERTS_GLB_INLINE ErtsBpIndex erts_active_bp_ix(void)
+{
+ return erts_smp_atomic32_read_nob(&erts_active_bp_index);
+}
+
+ERTS_GLB_INLINE ErtsBpIndex erts_staging_bp_ix(void)
+{
+ return erts_smp_atomic32_read_nob(&erts_staging_bp_index);
+}
#endif
#endif /* _BEAM_BP_H */
diff --git a/erts/emulator/beam/beam_catches.c b/erts/emulator/beam/beam_catches.c
index 406ef1db5f..92f7ffe5a2 100644
--- a/erts/emulator/beam/beam_catches.c
+++ b/erts/emulator/beam/beam_catches.c
@@ -31,78 +31,144 @@ typedef struct {
unsigned cdr;
} beam_catch_t;
-static int free_list;
-static unsigned high_mark;
-static unsigned tabsize;
-static beam_catch_t *beam_catches;
+#ifdef DEBUG
+# define IF_DEBUG(x) x
+#else
+# define IF_DEBUG(x)
+#endif
+
+struct bc_pool {
+ int free_list;
+ unsigned high_mark;
+ unsigned tabsize;
+ beam_catch_t *beam_catches;
+ /*
+ * Note that the 'beam_catches' area is shared by pools. Used slots
+ * are readonly as long as the module is not purgable. The free-list is
+ * protected by the code_ix lock.
+ */
+
+ IF_DEBUG(int is_staging;)
+};
+
+static struct bc_pool bccix[ERTS_NUM_CODE_IX];
void beam_catches_init(void)
{
- tabsize = DEFAULT_TABSIZE;
- free_list = -1;
- high_mark = 0;
+ int i;
+
+ bccix[0].tabsize = DEFAULT_TABSIZE;
+ bccix[0].free_list = -1;
+ bccix[0].high_mark = 0;
+ bccix[0].beam_catches = erts_alloc(ERTS_ALC_T_CODE,
+ sizeof(beam_catch_t)*DEFAULT_TABSIZE);
+ IF_DEBUG(bccix[0].is_staging = 0);
+ for (i=1; i<ERTS_NUM_CODE_IX; i++) {
+ bccix[i] = bccix[i-1];
+ }
+ /* For initial load: */
+ IF_DEBUG(bccix[erts_staging_code_ix()].is_staging = 1);
+}
- beam_catches = erts_alloc(ERTS_ALC_T_CODE, sizeof(beam_catch_t)*DEFAULT_TABSIZE);
+
+static void gc_old_vec(beam_catch_t* vec)
+{
+ int i;
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ if (bccix[i].beam_catches == vec) {
+ return;
+ }
+ }
+ erts_free(ERTS_ALC_T_CODE, vec);
+}
+
+
+void beam_catches_start_staging(void)
+{
+ ErtsCodeIndex dst = erts_staging_code_ix();
+ ErtsCodeIndex src = erts_active_code_ix();
+ beam_catch_t* prev_vec = bccix[dst].beam_catches;
+
+ ASSERT(!bccix[src].is_staging && !bccix[dst].is_staging);
+
+ bccix[dst] = bccix[src];
+ gc_old_vec(prev_vec);
+ IF_DEBUG(bccix[dst].is_staging = 1);
+}
+
+void beam_catches_end_staging(int commit)
+{
+ IF_DEBUG(bccix[erts_staging_code_ix()].is_staging = 0);
}
unsigned beam_catches_cons(BeamInstr *cp, unsigned cdr)
{
int i;
+ struct bc_pool* p = &bccix[erts_staging_code_ix()];
+ ASSERT(p->is_staging);
/*
* Allocate from free_list while it is non-empty.
* If free_list is empty, allocate at high_mark.
- *
- * This avoids the need to initialise the free list in
- * beam_catches_init(), which would cost O(TABSIZ) time.
*/
- if( free_list >= 0 ) {
- i = free_list;
- free_list = beam_catches[i].cdr;
- } else if( high_mark < tabsize ) {
- i = high_mark;
- high_mark++;
- } else {
- /* No free slots and table is full: realloc table */
- tabsize = 2*tabsize;
- beam_catches = erts_realloc(ERTS_ALC_T_CODE, beam_catches, sizeof(beam_catch_t)*tabsize);
- i = high_mark;
- high_mark++;
+ if (p->free_list >= 0) {
+ i = p->free_list;
+ p->free_list = p->beam_catches[i].cdr;
+ }
+ else {
+ if (p->high_mark >= p->tabsize) {
+ /* No free slots and table is full: realloc table */
+ beam_catch_t* prev_vec = p->beam_catches;
+ unsigned newsize = p->tabsize*2;
+
+ p->beam_catches = erts_alloc(ERTS_ALC_T_CODE,
+ newsize*sizeof(beam_catch_t));
+ sys_memcpy(p->beam_catches, prev_vec,
+ p->tabsize*sizeof(beam_catch_t));
+ gc_old_vec(prev_vec);
+ p->tabsize = newsize;
+ }
+ i = p->high_mark++;
}
- beam_catches[i].cp = cp;
- beam_catches[i].cdr = cdr;
+ p->beam_catches[i].cp = cp;
+ p->beam_catches[i].cdr = cdr;
return i;
}
BeamInstr *beam_catches_car(unsigned i)
{
- if( i >= tabsize ) {
+ struct bc_pool* p = &bccix[erts_active_code_ix()];
+
+ if (i >= p->tabsize ) {
erl_exit(1, "beam_catches_delmod: index %#x is out of range\r\n", i);
}
- return beam_catches[i].cp;
+ return p->beam_catches[i].cp;
}
-void beam_catches_delmod(unsigned head, BeamInstr *code, unsigned code_bytes)
+void beam_catches_delmod(unsigned head, BeamInstr *code, unsigned code_bytes,
+ ErtsCodeIndex code_ix)
{
+ struct bc_pool* p = &bccix[code_ix];
unsigned i, cdr;
+ ASSERT((code_ix == erts_active_code_ix()) != bccix[erts_staging_code_ix()].is_staging);
for(i = head; i != (unsigned)-1;) {
- if( i >= tabsize ) {
+ if (i >= p->tabsize) {
erl_exit(1, "beam_catches_delmod: index %#x is out of range\r\n", i);
}
- if( (char*)beam_catches[i].cp - (char*)code >= code_bytes ) {
+ if( (char*)p->beam_catches[i].cp - (char*)code >= code_bytes ) {
erl_exit(1,
"beam_catches_delmod: item %#x has cp %#lx which is not "
"in module's range [%#lx,%#lx[\r\n",
- i, (long)beam_catches[i].cp,
+ i, (long)p->beam_catches[i].cp,
(long)code, (long)((char*)code + code_bytes));
}
- beam_catches[i].cp = 0;
- cdr = beam_catches[i].cdr;
- beam_catches[i].cdr = free_list;
- free_list = i;
+ p->beam_catches[i].cp = 0;
+ cdr = p->beam_catches[i].cdr;
+ p->beam_catches[i].cdr = p->free_list;
+ p->free_list = i;
i = cdr;
}
}
diff --git a/erts/emulator/beam/beam_catches.h b/erts/emulator/beam/beam_catches.h
index 6223427f0d..b2bd2351a5 100644
--- a/erts/emulator/beam/beam_catches.h
+++ b/erts/emulator/beam/beam_catches.h
@@ -20,12 +20,21 @@
#ifndef __BEAM_CATCHES_H
#define __BEAM_CATCHES_H
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#include "sys.h"
+#include "code_ix.h"
+
#define BEAM_CATCHES_NIL (-1)
void beam_catches_init(void);
+void beam_catches_start_staging(void);
+void beam_catches_end_staging(int commit);
unsigned beam_catches_cons(BeamInstr* cp, unsigned cdr);
BeamInstr *beam_catches_car(unsigned i);
-void beam_catches_delmod(unsigned head, BeamInstr* code, unsigned code_bytes);
+void beam_catches_delmod(unsigned head, BeamInstr* code, unsigned code_bytes,
+ ErtsCodeIndex);
#define catch_pc(x) beam_catches_car(catch_val((x)))
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index 8041c92162..a609ed8c71 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -84,6 +84,7 @@ erts_debug_breakpoint_2(BIF_ALIST_2)
int i;
int specified = 0;
Eterm res;
+ BpFunctions f;
if (bool != am_true && bool != am_false)
goto error;
@@ -114,18 +115,30 @@ erts_debug_breakpoint_2(BIF_ALIST_2)
mfa[2] = signed_val(mfa[2]);
}
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD2(bif_export[BIF_erts_debug_breakpoint_2],
+ BIF_P, BIF_ARG_1, BIF_ARG_2);
+ }
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
erts_smp_thr_progress_block();
+ erts_bp_match_functions(&f, mfa, specified);
if (bool == am_true) {
- res = make_small(erts_set_debug_break(mfa, specified));
+ erts_set_debug_break(&f);
+ erts_install_breakpoints(&f);
+ erts_commit_staged_bp();
} else {
- res = make_small(erts_clear_debug_break(mfa, specified));
+ erts_clear_debug_break(&f);
+ erts_commit_staged_bp();
+ erts_uninstall_breakpoints(&f);
}
+ erts_consolidate_bp_data(&f, 1);
+ res = make_small(f.matched);
+ erts_bp_free_matched_functions(&f);
erts_smp_thr_progress_unblock();
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
-
+ erts_release_code_write_permission();
return res;
error:
@@ -207,6 +220,7 @@ erts_debug_disassemble_1(BIF_ALIST_1)
BIF_RET(am_false);
}
} else if (is_tuple(addr)) {
+ ErtsCodeIndex code_ix;
Module* modp;
Eterm mod;
Eterm name;
@@ -225,14 +239,14 @@ erts_debug_disassemble_1(BIF_ALIST_1)
goto error;
}
arity = signed_val(tp[3]);
- modp = erts_get_module(mod);
+ code_ix = erts_active_code_ix();
+ modp = erts_get_module(mod, code_ix);
/*
* Try the export entry first to allow disassembly of special functions
* such as erts_debug:apply/4. Then search for it in the module.
*/
-
- if ((ep = erts_find_function(mod, name, arity)) != NULL) {
+ if ((ep = erts_find_function(mod, name, arity, code_ix)) != NULL) {
/* XXX: add "&& ep->address != ep->code+3" condition?
* Consider a traced function.
* Its ep will have ep->address == ep->code+3.
@@ -241,9 +255,9 @@ erts_debug_disassemble_1(BIF_ALIST_1)
* But this code_ptr will point to the start of the Export,
* not the function's func_info instruction. BOOM !?
*/
- code_ptr = ((BeamInstr *) ep->address) - 5;
+ code_ptr = ((BeamInstr *) ep->addressv[code_ix]) - 5;
funcinfo = code_ptr+2;
- } else if (modp == NULL || (code_base = modp->code) == NULL) {
+ } else if (modp == NULL || (code_base = modp->curr.code) == NULL) {
BIF_RET(am_undef);
} else {
n = code_base[MI_NUM_FUNCTIONS];
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 6d3b15cd46..efce070061 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -63,11 +63,7 @@
# define PROCESS_MAIN_CHK_LOCKS(P) \
do { \
if ((P)) { \
- erts_pix_lock_t *pix_lock__ = ERTS_PIX2PIXLOCK(internal_pid_index((P)->id));\
erts_proc_lc_chk_only_proc_main((P)); \
- erts_pix_lock(pix_lock__); \
- ASSERT(0 < (P)->lock.refc && (P)->lock.refc < erts_no_schedulers*5);\
- erts_pix_unlock(pix_lock__); \
} \
else \
erts_lc_check_exact(NULL, 0); \
@@ -221,7 +217,6 @@ BeamInstr beam_continue_exit[1];
BeamInstr* em_call_error_handler;
BeamInstr* em_apply_bif;
-BeamInstr* em_call_traced_function;
/* NOTE These should be the only variables containing trace instructions.
@@ -495,7 +490,7 @@ extern int count_instructions;
do { \
if (FCALLS > 0) { \
Eterm* dis_next; \
- SET_I(((Export *) Arg(0))->address); \
+ SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]); \
dis_next = (Eterm *) *I; \
FCALLS--; \
CHECK_ARGS(I); \
@@ -504,7 +499,7 @@ extern int count_instructions;
&& FCALLS > neg_o_reds) { \
goto save_calls1; \
} else { \
- SET_I(((Export *) Arg(0))->address); \
+ SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]); \
CHECK_ARGS(I); \
goto context_switch; \
} \
@@ -1507,7 +1502,7 @@ void process_main(void)
*/
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->address);
+ BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]);
DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);
}
#endif
@@ -1522,7 +1517,7 @@ void process_main(void)
SET_CP(c_p, I+2);
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->address);
+ BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]);
DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);
}
#endif
@@ -1535,7 +1530,7 @@ void process_main(void)
OpCase(i_call_ext_only_e):
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->address);
+ BeamInstr* fp = (BeamInstr *) (((Export *) Arg(0))->addressv[erts_active_code_ix()]);
DTRACE_GLOBAL_CALL(c_p, (Eterm)fp[-3], (Eterm)fp[-2], fp[-1]);
}
#endif
@@ -1826,13 +1821,12 @@ void process_main(void)
msgp = PEEK_MESSAGE(c_p);
if (msgp)
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
- else {
+ else
#endif
+ {
SET_I((BeamInstr *) Arg(0));
Goto(*I); /* Jump to a wait or wait_timeout instruction */
-#ifdef ERTS_SMP
}
-#endif
}
ErtsMoveMsgAttachmentIntoProc(msgp, c_p, E, HTOP, FCALLS,
{
@@ -2061,11 +2055,11 @@ void process_main(void)
OpCase(wait_f):
wait2: {
- ASSERT(!ERTS_PROC_IS_EXITING(c_p));
c_p->i = (BeamInstr *) Arg(0); /* L1 */
SWAPOUT;
c_p->arity = 0;
- c_p->status = P_WAITING;
+ erts_smp_atomic32_read_band_relb(&c_p->state, ~ERTS_PSFLG_ACTIVE);
+ ASSERT(!ERTS_PROC_IS_EXITING(c_p));
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_MSG_RECEIVE);
c_p->current = NULL;
goto do_schedule;
@@ -3144,10 +3138,6 @@ void process_main(void)
c_p->arg_reg[0] = r(0);
SWAPOUT;
c_p->i = I;
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS);
- if (c_p->status != P_SUSPENDED)
- erts_add_to_runq(c_p);
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS);
goto do_schedule1;
}
@@ -4580,64 +4570,6 @@ void process_main(void)
* Trace and debugging support.
*/
- /*
- * At this point, I points to the code[3] in the export entry for
- * a trace-enabled function.
- *
- * code[0]: Module
- * code[1]: Function
- * code[2]: Arity
- * code[3]: &&call_traced_function
- * code[4]: Address of function.
- */
- OpCase(call_traced_function): {
- if (IS_TRACED_FL(c_p, F_TRACE_CALLS)) {
- unsigned offset = offsetof(Export, code) + 3*sizeof(BeamInstr);
- Export* ep = (Export *) (((char *)I)-offset);
- Uint32 flags;
-
- SWAPOUT;
- reg[0] = r(0);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
- flags = erts_call_trace(c_p, ep->code, ep->match_prog_set, reg,
- 0, &c_p->tracer_proc);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
- ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- ASSERT(!ERTS_PROC_IS_EXITING(c_p));
- SWAPIN;
-
- if (flags & MATCH_SET_RX_TRACE) {
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- if (E - 3 < HTOP) {
- /* SWAPOUT, SWAPIN was done and r(0) was saved above */
- PROCESS_MAIN_CHK_LOCKS(c_p);
- FCALLS -= erts_garbage_collect(c_p, 3, reg, ep->code[2]);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- r(0) = reg[0];
- SWAPIN;
- }
- E -= 3;
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- ASSERT(is_CP((BeamInstr)(ep->code)));
- ASSERT(is_internal_pid(c_p->tracer_proc) ||
- is_internal_port(c_p->tracer_proc));
- E[2] = make_cp(c_p->cp); /* Code in lower range on halfword */
- E[1] = am_true; /* Process tracer */
- E[0] = make_cp(ep->code);
- c_p->cp = (flags & MATCH_SET_EXCEPTION_TRACE)
- ? beam_exception_trace : beam_return_trace;
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- c_p->trace_flags |= F_EXCEPTION_TRACE;
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- }
- }
- SET_I((BeamInstr *)Arg(0));
- Dispatch();
- }
-
OpCase(return_trace): {
BeamInstr* code = (BeamInstr *) (UWord) E[0];
@@ -4652,80 +4584,22 @@ void process_main(void)
Goto(*I);
}
- OpCase(i_count_breakpoint): {
- BeamInstr real_I;
-
- ErtsCountBreak(c_p, (BeamInstr *) I, &real_I);
- ASSERT(VALID_INSTR(real_I));
- Goto(real_I);
- }
-
- /* need to send mfa instead of bdt pointer
- * the pointer might be deallocated.
- */
-
- OpCase(i_time_breakpoint): {
+ OpCase(i_generic_breakpoint): {
BeamInstr real_I;
- BpData **bds = (BpData **) (I)[-4];
- BpDataTime *bdt = NULL;
- Uint ix = 0;
-#ifdef ERTS_SMP
- ix = c_p->scheduler_data->no - 1;
-#else
- ix = 0;
-#endif
- bdt = (BpDataTime *)bds[ix];
-
- ASSERT((I)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
- ASSERT(bdt);
- bdt = (BpDataTime *) bdt->next;
- ASSERT(bdt);
- bds[ix] = (BpData *) bdt;
- real_I = bdt->orig_instr;
+ ASSERT(I[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
+ SWAPOUT;
+ reg[0] = r(0);
+ real_I = erts_generic_breakpoint(c_p, I, reg);
+ r(0) = reg[0];
+ SWAPIN;
ASSERT(VALID_INSTR(real_I));
-
- if (IS_TRACED_FL(c_p, F_TRACE_CALLS) && !(bdt->pause)) {
- if ( (*(c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) ||
- (*(c_p->cp) == (BeamInstr) OpCode(return_trace)) ||
- (*(c_p->cp) == (BeamInstr) OpCode(i_return_to_trace))) {
- /* This _IS_ a tail recursive call */
- SWAPOUT;
- erts_trace_time_break(c_p, I, bdt, ERTS_BP_CALL_TIME_TAIL_CALL);
- SWAPIN;
- } else {
- SWAPOUT;
- erts_trace_time_break(c_p, I, bdt, ERTS_BP_CALL_TIME_CALL);
-
- /* r register needs to be copied to the array
- * for the garbage collector
- */
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- if (E - 2 < HTOP) {
- reg[0] = r(0);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- FCALLS -= erts_garbage_collect(c_p, 2, reg, I[-1]);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- r(0) = reg[0];
- }
- SWAPIN;
-
- ASSERT(c_p->htop <= E && E <= c_p->hend);
-
- E -= 2;
- E[0] = make_cp(I);
- E[1] = make_cp(c_p->cp); /* original return address */
- c_p->cp = beam_return_time_trace;
- }
- }
-
Goto(real_I);
}
OpCase(i_return_time_trace): {
BeamInstr *pc = (BeamInstr *) (UWord) E[0];
SWAPOUT;
- erts_trace_time_break(c_p, pc, NULL, ERTS_BP_CALL_TIME_RETURN);
+ erts_trace_time_return(c_p, pc);
SWAPIN;
c_p->cp = NULL;
SET_I((BeamInstr *) cp_val(E[1]));
@@ -4733,114 +4607,6 @@ void process_main(void)
Goto(*I);
}
- OpCase(i_trace_breakpoint):
- if (! IS_TRACED_FL(c_p, F_TRACE_CALLS)) {
- BeamInstr real_I;
-
- ErtsBreakSkip(c_p, (BeamInstr *) I, &real_I);
- Goto(real_I);
- }
- /* Fall through to next case */
- OpCase(i_mtrace_breakpoint): {
- BeamInstr real_I;
- Uint32 flags;
- Eterm tracer_pid;
- Uint* cpp;
- int return_to_trace = 0, need = 0;
- flags = 0;
- SWAPOUT;
- reg[0] = r(0);
-
- if (*(c_p->cp) == (BeamInstr) OpCode(return_trace)) {
- cpp = &E[2];
- } else if (*(c_p->cp) == (BeamInstr) OpCode(i_return_to_trace)) {
- return_to_trace = !0;
- cpp = &E[0];
- } else if (*(c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) {
- return_to_trace = !0;
- cpp = &E[0];
- } else {
- cpp = NULL;
- }
- if (cpp) {
- /* This _IS_ a tail recursive call, if there are
- * return_trace and/or i_return_to_trace stackframes
- * on the stack, they are not intermixed with y registers
- */
- BeamInstr *cp_save = c_p->cp;
- for (;;) {
- ASSERT(is_CP(*cpp));
- if (*cp_val(*cpp) == (BeamInstr) OpCode(return_trace)) {
- cpp += 3;
- } else if (*cp_val(*cpp) == (BeamInstr) OpCode(i_return_to_trace)) {
- return_to_trace = !0;
- cpp += 1;
- } else if (*cp_val(*cpp) == (BeamInstr) OpCode(i_return_time_trace)) {
- cpp += 2;
- } else
- break;
- }
- c_p->cp = (BeamInstr *) cp_val(*cpp);
- ASSERT(is_CP(*cpp));
- ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
- real_I = erts_trace_break(c_p, I, reg, &flags, &tracer_pid);
- ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
- SWAPIN; /* Needed by shared heap. */
- c_p->cp = cp_save;
- } else {
- ERTS_SMP_UNREQ_PROC_MAIN_LOCK(c_p);
- real_I = erts_trace_break(c_p, I, reg, &flags, &tracer_pid);
- ERTS_SMP_REQ_PROC_MAIN_LOCK(c_p);
- SWAPIN; /* Needed by shared heap. */
- }
-
- ASSERT(!ERTS_PROC_IS_EXITING(c_p));
-
- if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) {
- need += 1;
- }
- if (flags & MATCH_SET_RX_TRACE) {
- need += 3;
- }
- if (need) {
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- if (E - need < HTOP) {
- /* SWAPOUT was done and r(0) was saved above */
- PROCESS_MAIN_CHK_LOCKS(c_p);
- FCALLS -= erts_garbage_collect(c_p, need, reg, I[-1]);
- ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
- PROCESS_MAIN_CHK_LOCKS(c_p);
- r(0) = reg[0];
- SWAPIN;
- }
- }
- if ((flags & MATCH_SET_RETURN_TO_TRACE) && !return_to_trace) {
- E -= 1;
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- E[0] = make_cp(c_p->cp);
- c_p->cp = (BeamInstr *) beam_return_to_trace;
- }
- if (flags & MATCH_SET_RX_TRACE) {
- E -= 3;
- ASSERT(c_p->htop <= E && E <= c_p->hend);
- ASSERT(is_CP((Eterm) (UWord) (I - 3)));
- ASSERT(am_true == tracer_pid ||
- is_internal_pid(tracer_pid) || is_internal_port(tracer_pid));
- E[2] = make_cp(c_p->cp);
- E[1] = tracer_pid;
- E[0] = make_cp(I - 3); /* We ARE at the beginning of an
- instruction,
- the funcinfo is above i. */
- c_p->cp =
- (flags & MATCH_SET_EXCEPTION_TRACE)
- ? beam_exception_trace : beam_return_trace;
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- c_p->trace_flags |= F_EXCEPTION_TRACE;
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCKS_ALL_MINOR);
- }
- Goto(real_I);
- }
-
OpCase(i_return_to_trace): {
if (IS_TRACED_FL(c_p, F_TRACE_RETURN_TO)) {
Uint *cpp = (Uint*) E;
@@ -5110,9 +4876,6 @@ void process_main(void)
c_p->arity = 1; /* One living register (the 'true' return value) */
SWAPOUT;
c_p->i = I + 1; /* Next instruction */
- erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS);
- erts_add_to_runq(c_p);
- erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS);
c_p->current = NULL;
goto do_schedule;
}
@@ -5193,7 +4956,6 @@ void process_main(void)
#endif /* NO_JUMP_TABLE */
em_call_error_handler = OpCode(call_error_handler);
- em_call_traced_function = OpCode(call_traced_function);
em_apply_bif = OpCode(apply_bif);
beam_apply[0] = (BeamInstr) OpCode(i_apply);
@@ -5234,7 +4996,7 @@ void process_main(void)
save_calls(c_p, (Export *) Arg(0));
- SET_I(((Export *) Arg(0))->address);
+ SET_I(((Export *) Arg(0))->addressv[erts_active_code_ix()]);
dis_next = (Eterm *) *I;
FCALLS--;
@@ -5911,7 +5673,8 @@ call_error_handler(Process* p, BeamInstr* fi, Eterm* reg, Eterm func)
/*
* Search for the error_handler module.
*/
- ep = erts_find_function(erts_proc_get_error_handler(p), func, 3);
+ ep = erts_find_function(erts_proc_get_error_handler(p), func, 3,
+ erts_active_code_ix());
if (ep == NULL) { /* No error handler */
p->current = fi;
p->freason = EXC_UNDEF;
@@ -5941,7 +5704,7 @@ call_error_handler(Process* p, BeamInstr* fi, Eterm* reg, Eterm func)
reg[0] = fi[0];
reg[1] = fi[1];
reg[2] = args;
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
}
@@ -5955,7 +5718,7 @@ apply_setup_error_handler(Process* p, Eterm module, Eterm function, Uint arity,
* there is no error handler module.
*/
- if ((ep = erts_find_export_entry(erts_proc_get_error_handler(p),
+ if ((ep = erts_active_export_entry(erts_proc_get_error_handler(p),
am_undefined_function, 3)) == NULL) {
return NULL;
} else {
@@ -6062,7 +5825,7 @@ apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg)
* Note: All BIFs have export entries; thus, no special case is needed.
*/
- if ((ep = erts_find_export_entry(module, function, arity)) == NULL) {
+ if ((ep = erts_active_export_entry(module, function, arity)) == NULL) {
if ((ep = apply_setup_error_handler(p, module, function, arity, reg)) == NULL) goto error;
} else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) {
save_calls(p, ep);
@@ -6070,11 +5833,11 @@ apply(Process* p, Eterm module, Eterm function, Eterm args, Eterm* reg)
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr *fptr = (BeamInstr *) ep->address;
+ BeamInstr *fptr = (BeamInstr *) ep->addressv[erts_active_code_ix()];
DTRACE_GLOBAL_CALL(p, (Eterm)fptr[-3], (Eterm)fptr[-2], (Uint)fptr[-1]);
}
#endif
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
}
static BeamInstr*
@@ -6116,7 +5879,7 @@ fixed_apply(Process* p, Eterm* reg, Uint arity)
* Note: All BIFs have export entries; thus, no special case is needed.
*/
- if ((ep = erts_find_export_entry(module, function, arity)) == NULL) {
+ if ((ep = erts_active_export_entry(module, function, arity)) == NULL) {
if ((ep = apply_setup_error_handler(p, module, function, arity, reg)) == NULL)
goto error;
} else if (ERTS_PROC_GET_SAVED_CALLS_BUF(p)) {
@@ -6125,11 +5888,11 @@ fixed_apply(Process* p, Eterm* reg, Uint arity)
#ifdef USE_VM_CALL_PROBES
if (DTRACE_ENABLED(global_function_entry)) {
- BeamInstr *fptr = (BeamInstr *) ep->address;
+ BeamInstr *fptr = (BeamInstr *) ep->addressv[erts_active_code_ix()];
DTRACE_GLOBAL_CALL(p, (Eterm)fptr[-3], (Eterm)fptr[-2], (Uint)fptr[-1]);
}
#endif
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
}
int
@@ -6206,9 +5969,7 @@ erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* re
*/
erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(c_p);
- if (c_p->msg.len > 0) {
- erts_add_to_runq(c_p);
- } else {
+ if (!c_p->msg.len) {
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
c_p->fvalue = NIL;
PROCESS_MAIN_CHK_LOCKS(c_p);
@@ -6216,14 +5977,12 @@ erts_hibernate(Process* c_p, Eterm module, Eterm function, Eterm args, Eterm* re
ERTS_VERIFY_UNUSED_TEMP_ALLOC(c_p);
PROCESS_MAIN_CHK_LOCKS(c_p);
erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
- ASSERT(!ERTS_PROC_IS_EXITING(c_p));
#ifdef ERTS_SMP
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(c_p);
- if (c_p->msg.len > 0)
- erts_add_to_runq(c_p);
- else
+ if (!c_p->msg.len)
#endif
- c_p->status = P_WAITING;
+ erts_smp_atomic32_read_band_relb(&c_p->state, ~ERTS_PSFLG_ACTIVE);
+ ASSERT(!ERTS_PROC_IS_EXITING(c_p));
}
erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
c_p->current = bif_export[BIF_hibernate_3]->code;
@@ -6311,7 +6070,7 @@ call_fun(Process* p, /* Current process. */
Export* ep;
Module* modp;
Eterm module;
-
+ ErtsCodeIndex code_ix = erts_active_code_ix();
/*
* No arity. There is no module loaded that defines the fun,
@@ -6319,9 +6078,9 @@ call_fun(Process* p, /* Current process. */
* representation (the module has never been loaded),
* or the module defining the fun has been unloaded.
*/
-
module = fe->module;
- if ((modp = erts_get_module(module)) != NULL && modp->code != NULL) {
+ if ((modp = erts_get_module(module, code_ix)) != NULL
+ && modp->curr.code != NULL) {
/*
* There is a module loaded, but obviously the fun is not
* defined in it. We must not call the error_handler
@@ -6336,7 +6095,7 @@ call_fun(Process* p, /* Current process. */
*/
ep = erts_find_function(erts_proc_get_error_handler(p),
- am_undefined_lambda, 3);
+ am_undefined_lambda, 3, code_ix);
if (ep == NULL) { /* No error handler */
p->current = NULL;
p->freason = EXC_UNDEF;
@@ -6346,7 +6105,7 @@ call_fun(Process* p, /* Current process. */
reg[1] = fun;
reg[2] = args;
reg[3] = NIL;
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
}
}
} else if (is_export_header(hdr)) {
@@ -6358,7 +6117,7 @@ call_fun(Process* p, /* Current process. */
if (arity == actual_arity) {
DTRACE_GLOBAL_CALL(p, ep->code[0], ep->code[1], (Uint)ep->code[2]);
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
} else {
/*
* Wrong arity. First build a list of the arguments.
@@ -6409,8 +6168,8 @@ call_fun(Process* p, /* Current process. */
erts_send_warning_to_logger(p->group_leader, dsbufp);
}
- if ((ep = erts_find_export_entry(module, function, arity)) == NULL) {
- ep = erts_find_export_entry(erts_proc_get_error_handler(p),
+ if ((ep = erts_active_export_entry(module, function, arity)) == NULL) {
+ ep = erts_active_export_entry(erts_proc_get_error_handler(p),
am_undefined_function, 3);
if (ep == NULL) {
p->freason = EXC_UNDEF;
@@ -6434,7 +6193,7 @@ call_fun(Process* p, /* Current process. */
reg[2] = args;
}
DTRACE_GLOBAL_CALL(p, module, function, arity);
- return ep->address;
+ return ep->addressv[erts_active_code_ix()];
} else {
badfun:
p->current = NULL;
@@ -6537,7 +6296,8 @@ erts_is_builtin(Eterm Mod, Eterm Name, int arity)
if ((ep = export_get(&e)) == NULL) {
return 0;
}
- return ep->address == ep->code+3 && (ep->code[3] == (BeamInstr) em_apply_bif);
+ return ep->addressv[erts_active_code_ix()] == ep->code+3
+ && (ep->code[3] == (BeamInstr) em_apply_bif);
}
diff --git a/erts/emulator/beam/beam_load.c b/erts/emulator/beam/beam_load.c
index dd788df6e4..d3f55a2ba4 100644
--- a/erts/emulator/beam/beam_load.c
+++ b/erts/emulator/beam/beam_load.c
@@ -352,27 +352,6 @@ typedef struct LoaderState {
int loc_size; /* Size of location info in bytes (2/4) */
} LoaderState;
-/*
- * Layout of the line table.
- */
-
-#define MI_LINE_FNAME_PTR 0
-#define MI_LINE_LOC_TAB 1
-#define MI_LINE_LOC_SIZE 2
-#define MI_LINE_FUNC_TAB 3
-
-#define LINE_INVALID_LOCATION (0)
-
-/*
- * Macros for manipulating locations.
- */
-
-#define IS_VALID_LOCATION(File, Line) \
- ((unsigned) (File) < 255 && (unsigned) (Line) < ((1 << 24) - 1))
-#define MAKE_LOCATION(File, Line) (((File) << 24) | (Line))
-#define LOC_FILE(Loc) ((Loc) >> 24)
-#define LOC_LINE(Loc) ((Loc) & ((1 << 24)-1))
-
#define GetTagAndValue(Stp, Tag, Val) \
do { \
BeamInstr __w; \
@@ -496,7 +475,8 @@ typedef struct LoaderState {
} while (0)
-static void free_state(LoaderState* stp);
+static void free_loader_state(Binary* magic);
+static void loader_state_dtor(Binary* magic);
static Eterm insert_new_code(Process *c_p, ErtsProcLocks c_p_locks,
Eterm group_leader, Eterm module,
BeamInstr* code, Uint size);
@@ -507,6 +487,7 @@ static int verify_chunks(LoaderState* stp);
static int load_atom_table(LoaderState* stp);
static int load_import_table(LoaderState* stp);
static int read_export_table(LoaderState* stp);
+static int is_bif(Eterm mod, Eterm func, unsigned arity);
static int read_lambda_table(LoaderState* stp);
static int read_literal_table(LoaderState* stp);
static int read_line_table(LoaderState* stp);
@@ -548,22 +529,9 @@ static Eterm native_addresses(Process* p, Eterm mod);
int patch_funentries(Eterm Patchlist);
int patch(Eterm Addresses, Uint fe);
static int safe_mul(UWord a, UWord b, UWord* resp);
-static void lookup_loc(FunctionInfo* fi, BeamInstr* pc,
- BeamInstr* modp, int idx);
-
static int must_swap_floats;
-/*
- * The following variables keep a sorted list of address ranges for
- * each module. It allows us to quickly find a function given an
- * instruction pointer.
- */
-Range* modules = NULL; /* Sorted lists of module addresses. */
-int num_loaded_modules; /* Number of loaded modules. */
-int allocated_modules; /* Number of slots allocated. */
-Range* mid_module = NULL; /* Cached search start point */
-
Uint erts_total_code_size;
/**********************************************************************/
@@ -579,11 +547,7 @@ void init_load(void)
f.fd = 1.0;
must_swap_floats = (f.fw[0] == 0);
- allocated_modules = 128;
- modules = (Range *) erts_alloc(ERTS_ALC_T_MODULE_REFS,
- allocated_modules*sizeof(Range));
- mid_module = modules;
- num_loaded_modules = 0;
+ erts_init_ranges();
}
static void
@@ -595,7 +559,7 @@ define_file(LoaderState* stp, char* name, int idx)
}
Eterm
-erts_load_module(Process *c_p,
+erts_preload_module(Process *c_p,
ErtsProcLocks c_p_locks,
Eterm group_leader, /* Group leader or NIL if none. */
Eterm* modp, /*
@@ -605,15 +569,16 @@ erts_load_module(Process *c_p,
byte* code, /* Points to the code to load */
Uint size) /* Size of code to load. */
{
- LoaderState* stp = erts_alloc_loader_state();
+ Binary* magic = erts_alloc_loader_state();
Eterm retval;
- retval = erts_prepare_loading(stp, c_p, group_leader, modp,
+ ASSERT(!erts_initialized);
+ retval = erts_prepare_loading(magic, c_p, group_leader, modp,
code, size);
if (retval != NIL) {
return retval;
}
- return erts_finish_loading(stp, c_p, c_p_locks, modp);
+ return erts_finish_loading(magic, c_p, c_p_locks, modp);
}
/* #define LOAD_MEMORY_HARD_DEBUG 1*/
@@ -629,11 +594,13 @@ extern void check_allocated_block(Uint type, void *blk);
#endif
Eterm
-erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader,
+erts_prepare_loading(Binary* magic, Process *c_p, Eterm group_leader,
Eterm* modp, byte* code, Uint unloaded_size)
{
Eterm retval = am_badfile;
+ LoaderState* stp;
+ stp = ERTS_MAGIC_BIN_DATA(magic);
stp->module = *modp;
stp->group_leader = group_leader;
@@ -666,7 +633,7 @@ erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader,
/*
* Initialize code area.
*/
- stp->code_buffer_size = erts_next_heap_size(2048 + stp->num_functions, 0);
+ stp->code_buffer_size = 2048 + stp->num_functions;
stp->code = (BeamInstr *) erts_alloc(ERTS_ALC_T_CODE,
sizeof(BeamInstr) * stp->code_buffer_size);
@@ -679,8 +646,6 @@ erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader,
stp->code[MI_COMPILE_PTR] = 0;
stp->code[MI_COMPILE_SIZE] = 0;
stp->code[MI_COMPILE_SIZE_ON_HEAP] = 0;
- stp->code[MI_NUM_BREAKPOINTS] = 0;
-
/*
* Read the atom table.
@@ -774,23 +739,24 @@ erts_prepare_loading(LoaderState* stp, Process *c_p, Eterm group_leader,
load_error:
if (retval != NIL) {
- free_state(stp);
+ free_loader_state(magic);
}
return retval;
}
Eterm
-erts_finish_loading(LoaderState* stp, Process* c_p,
+erts_finish_loading(Binary* magic, Process* c_p,
ErtsProcLocks c_p_locks, Eterm* modp)
{
Eterm retval;
+ LoaderState* stp = ERTS_MAGIC_BIN_DATA(magic);
/*
* No other process may run since we will update the export
* table which is not protected by any locks.
*/
- ERTS_SMP_LC_ASSERT(erts_initialized == 0 ||
+ ERTS_SMP_LC_ASSERT(erts_initialized == 0 || erts_is_code_ix_locked() ||
erts_smp_thr_progress_is_blocking());
/*
@@ -811,7 +777,6 @@ erts_finish_loading(LoaderState* stp, Process* c_p,
* exported and imported functions. This can't fail.
*/
- erts_export_consolidate();
CHKBLK(ERTS_ALC_T_CODE,stp->code);
final_touch(stp);
@@ -837,16 +802,20 @@ erts_finish_loading(LoaderState* stp, Process* c_p,
}
load_error:
- free_state(stp);
+ free_loader_state(magic);
return retval;
}
-LoaderState*
+Binary*
erts_alloc_loader_state(void)
{
LoaderState* stp;
+ Binary* magic;
- stp = erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(LoaderState));
+ magic = erts_create_magic_binary(sizeof(LoaderState),
+ loader_state_dtor);
+ erts_refc_inc(&magic->refc, 1);
+ stp = ERTS_MAGIC_BIN_DATA(magic);
stp->bin = NULL;
stp->function = THE_NON_VALUE; /* Function not known yet */
stp->arity = 0;
@@ -875,76 +844,123 @@ erts_alloc_loader_state(void)
stp->line_instr = 0;
stp->func_line = 0;
stp->fname = 0;
- return stp;
+ return magic;
+}
+
+/*
+ * Return the module name (a tagged atom) for the prepared code
+ * in the magic binary, or NIL if the binary does not contain
+ * prepared code.
+ */
+Eterm
+erts_module_for_prepared_code(Binary* magic)
+{
+ LoaderState* stp;
+
+ if (ERTS_MAGIC_BIN_DESTRUCTOR(magic) != loader_state_dtor) {
+ return NIL;
+ }
+ stp = ERTS_MAGIC_BIN_DATA(magic);
+ if (stp->code != 0) {
+ return stp->module;
+ } else {
+ return NIL;
+ }
}
static void
-free_state(LoaderState* stp)
+free_loader_state(Binary* magic)
{
+ loader_state_dtor(magic);
+ if (erts_refc_dectest(&magic->refc, 0) == 0) {
+ erts_bin_free(magic);
+ }
+}
+
+/*
+ * This destructor function can safely be called multiple times.
+ */
+static void
+loader_state_dtor(Binary* magic)
+{
+ LoaderState* stp = ERTS_MAGIC_BIN_DATA(magic);
+
if (stp->bin != 0) {
driver_free_binary(stp->bin);
+ stp->bin = 0;
}
if (stp->code != 0) {
erts_free(ERTS_ALC_T_CODE, stp->code);
+ stp->code = 0;
}
- if (stp->labels != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->labels);
+ if (stp->labels != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->labels);
+ stp->labels = 0;
}
- if (stp->atom != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->atom);
+ if (stp->atom != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->atom);
+ stp->atom = 0;
}
- if (stp->import != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->import);
+ if (stp->import != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->import);
+ stp->import = 0;
}
- if (stp->export != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->export);
+ if (stp->export != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->export);
+ stp->export = 0;
}
if (stp->lambdas != stp->def_lambdas) {
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->lambdas);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->lambdas);
+ stp->lambdas = stp->def_lambdas;
}
- if (stp->literals != NULL) {
+ if (stp->literals != 0) {
int i;
for (i = 0; i < stp->num_literals; i++) {
- if (stp->literals[i].heap != NULL) {
- erts_free(ERTS_ALC_T_LOADER_TMP,
+ if (stp->literals[i].heap != 0) {
+ erts_free(ERTS_ALC_T_PREPARED_CODE,
(void *) stp->literals[i].heap);
+ stp->literals[i].heap = 0;
}
}
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->literals);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->literals);
+ stp->literals = 0;
}
- while (stp->literal_patches != NULL) {
+ while (stp->literal_patches != 0) {
LiteralPatch* next = stp->literal_patches->next;
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->literal_patches);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->literal_patches);
stp->literal_patches = next;
}
- while (stp->string_patches != NULL) {
+ while (stp->string_patches != 0) {
StringPatch* next = stp->string_patches->next;
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->string_patches);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, (void *) stp->string_patches);
stp->string_patches = next;
}
- while (stp->genop_blocks) {
- GenOpBlock* next = stp->genop_blocks->next;
- erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->genop_blocks);
- stp->genop_blocks = next;
- }
if (stp->line_item != 0) {
- erts_free(ERTS_ALC_T_LOADER_TMP, stp->line_item);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, stp->line_item);
+ stp->line_item = 0;
}
if (stp->line_instr != 0) {
- erts_free(ERTS_ALC_T_LOADER_TMP, stp->line_instr);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, stp->line_instr);
+ stp->line_instr = 0;
}
if (stp->func_line != 0) {
- erts_free(ERTS_ALC_T_LOADER_TMP, stp->func_line);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, stp->func_line);
+ stp->func_line = 0;
}
if (stp->fname != 0) {
- erts_free(ERTS_ALC_T_LOADER_TMP, stp->fname);
+ erts_free(ERTS_ALC_T_PREPARED_CODE, stp->fname);
+ stp->fname = 0;
}
- erts_free(ERTS_ALC_T_LOADER_TMP, stp);
+ /*
+ * The following data items should have been freed earlier.
+ */
+
+ ASSERT(stp->genop_blocks == 0);
}
static Eterm
@@ -954,7 +970,6 @@ insert_new_code(Process *c_p, ErtsProcLocks c_p_locks,
{
Module* modp;
Eterm retval;
- int i;
if ((retval = beam_make_current_old(c_p, c_p_locks, module)) != NIL) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
@@ -971,30 +986,15 @@ insert_new_code(Process *c_p, ErtsProcLocks c_p_locks,
erts_total_code_size += size;
modp = erts_put_module(module);
- modp->code = code;
- modp->code_length = size;
- modp->catches = BEAM_CATCHES_NIL; /* Will be filled in later. */
+ modp->curr.code = code;
+ modp->curr.code_length = size;
+ modp->curr.catches = BEAM_CATCHES_NIL; /* Will be filled in later. */
/*
- * Update address table (used for finding a function from a PC value).
+ * Update ranges (used for finding a function from a PC value).
*/
- if (num_loaded_modules == allocated_modules) {
- allocated_modules *= 2;
- modules = (Range *) erts_realloc(ERTS_ALC_T_MODULE_REFS,
- (void *) modules,
- allocated_modules * sizeof(Range));
- }
- for (i = num_loaded_modules; i > 0; i--) {
- if (code > modules[i-1].start) {
- break;
- }
- modules[i] = modules[i-1];
- }
- modules[i].start = code;
- modules[i].end = (BeamInstr *) (((byte *)code) + size);
- num_loaded_modules++;
- mid_module = &modules[num_loaded_modules/2];
+ erts_update_ranges(code, size);
return NIL;
}
@@ -1217,9 +1217,8 @@ load_atom_table(LoaderState* stp)
GetInt(stp, 4, stp->num_atoms);
stp->num_atoms++;
- stp->atom = erts_alloc(ERTS_ALC_T_LOADER_TMP,
- erts_next_heap_size((stp->num_atoms*sizeof(Eterm)),
- 0));
+ stp->atom = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+ stp->num_atoms*sizeof(Eterm));
/*
* Read all atoms.
@@ -1263,10 +1262,8 @@ load_import_table(LoaderState* stp)
int i;
GetInt(stp, 4, stp->num_imports);
- stp->import = erts_alloc(ERTS_ALC_T_LOADER_TMP,
- erts_next_heap_size((stp->num_imports *
- sizeof(ImportEntry)),
- 0));
+ stp->import = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+ stp->num_imports * sizeof(ImportEntry));
for (i = 0; i < stp->num_imports; i++) {
int n;
Eterm mod;
@@ -1296,7 +1293,7 @@ load_import_table(LoaderState* stp)
* If the export entry refers to a BIF, get the pointer to
* the BIF function.
*/
- if ((e = erts_find_export_entry(mod, func, arity)) != NULL) {
+ if ((e = erts_active_export_entry(mod, func, arity)) != NULL) {
if (e->code[3] == (BeamInstr) em_apply_bif) {
stp->import[i].bf = (BifFunction) e->code[4];
if (func == am_load_nif && mod == am_erlang && arity == 2) {
@@ -1315,16 +1312,8 @@ load_import_table(LoaderState* stp)
static int
read_export_table(LoaderState* stp)
{
- static struct {
- Eterm mod;
- Eterm func;
- int arity;
- } allow_redef[] = {
- /* The BIFs that are allowed to be redefined by Erlang code */
- {am_erlang,am_apply,2},
- {am_erlang,am_apply,3},
- };
int i;
+ BeamInstr* address;
GetInt(stp, 4, stp->num_exps);
if (stp->num_exps > stp->num_functions) {
@@ -1332,7 +1321,7 @@ read_export_table(LoaderState* stp)
stp->num_exps, stp->num_functions);
}
stp->export
- = (ExportEntry *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ = (ExportEntry *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
(stp->num_exps * sizeof(ExportEntry)));
for (i = 0; i < stp->num_exps; i++) {
@@ -1340,7 +1329,6 @@ read_export_table(LoaderState* stp)
Uint value;
Eterm func;
Uint arity;
- Export* e;
GetInt(stp, 4, n);
GetAtom(stp, n, func);
@@ -1358,29 +1346,34 @@ read_export_table(LoaderState* stp)
if (value == 0) {
LoadError2(stp, "export table entry %d: label %d not resolved", i, n);
}
- stp->export[i].address = stp->code + value;
+ stp->export[i].address = address = stp->code + value;
/*
- * Check that we are not redefining a BIF (except the ones allowed to
- * redefine).
+ * Find out if there is a BIF with the same name.
*/
- if ((e = erts_find_export_entry(stp->module, func, arity)) != NULL) {
- if (e->code[3] == (BeamInstr) em_apply_bif) {
- int j;
- for (j = 0; j < sizeof(allow_redef)/sizeof(allow_redef[0]); j++) {
- if (stp->module == allow_redef[j].mod &&
- func == allow_redef[j].func &&
- arity == allow_redef[j].arity) {
- break;
- }
- }
- if (j == sizeof(allow_redef)/sizeof(allow_redef[0])) {
- LoadError2(stp, "exported function %T/%d redefines BIF",
- func, arity);
- }
- }
+ if (!is_bif(stp->module, func, arity)) {
+ continue;
+ }
+
+ /*
+ * This is a stub for a BIF.
+ *
+ * It should not be exported, and the information in its
+ * func_info instruction should be invalidated so that it
+ * can be filtered out by module_info(functions) and by
+ * any other functions that walk through all local functions.
+ */
+
+ if (stp->labels[n].patches) {
+ LoadError3(stp, "there are local calls to the stub for "
+ "the BIF %T:%T/%d",
+ stp->module, func, arity);
}
+ stp->export[i].address = NULL;
+ address[-1] = 0;
+ address[-2] = NIL;
+ address[-3] = NIL;
}
return 1;
@@ -1388,15 +1381,39 @@ read_export_table(LoaderState* stp)
return 0;
}
+
+static int
+is_bif(Eterm mod, Eterm func, unsigned arity)
+{
+ Export* e = erts_active_export_entry(mod, func, arity);
+ if (e == NULL) {
+ return 0;
+ }
+ if (e->code[3] != (BeamInstr) em_apply_bif) {
+ return 0;
+ }
+ if (mod == am_erlang && func == am_apply && arity == 3) {
+ /*
+ * erlang:apply/3 is a special case -- it is implemented
+ * as an instruction and it is OK to redefine it.
+ */
+ return 0;
+ }
+ return 1;
+}
+
static int
read_lambda_table(LoaderState* stp)
{
int i;
GetInt(stp, 4, stp->num_lambdas);
- stp->lambdas_allocated = stp->num_lambdas;
- stp->lambdas = (Lambda *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
- stp->num_lambdas * sizeof(Lambda));
+ if (stp->num_lambdas > stp->lambdas_allocated) {
+ ASSERT(stp->lambdas == stp->def_lambdas);
+ stp->lambdas_allocated = stp->num_lambdas;
+ stp->lambdas = (Lambda *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+ stp->num_lambdas * sizeof(Lambda));
+ }
for (i = 0; i < stp->num_lambdas; i++) {
Uint n;
Uint32 Index;
@@ -1446,7 +1463,7 @@ read_literal_table(LoaderState* stp)
stp->file_p = uncompressed;
stp->file_left = (unsigned) uncompressed_sz;
GetInt(stp, 4, stp->num_literals);
- stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_literals * sizeof(Literal));
stp->allocated_literals = stp->num_literals;
@@ -1466,7 +1483,7 @@ read_literal_table(LoaderState* stp)
if ((heap_size = erts_decode_ext_size(p, sz)) < 0) {
LoadError1(stp, "literal %d: bad external format", i);
}
- hp = stp->literals[i].heap = erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ hp = stp->literals[i].heap = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
heap_size*sizeof(Eterm));
stp->literals[i].off_heap.first = 0;
stp->literals[i].off_heap.overhead = 0;
@@ -1538,7 +1555,7 @@ read_line_table(LoaderState* stp)
*/
num_line_items++;
- lp = (BeamInstr *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ lp = (BeamInstr *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
num_line_items * sizeof(BeamInstr));
stp->line_item = lp;
stp->num_line_items = num_line_items;
@@ -1594,7 +1611,7 @@ read_line_table(LoaderState* stp)
*/
if (stp->num_fnames != 0) {
- stp->fname = (Eterm *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->fname = (Eterm *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_fnames *
sizeof(Eterm));
for (i = 0; i < stp->num_fnames; i++) {
@@ -1610,11 +1627,11 @@ read_line_table(LoaderState* stp)
/*
* Allocate the arrays to be filled while code is being loaded.
*/
- stp->line_instr = (LineInstr *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->line_instr = (LineInstr *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_line_instrs *
sizeof(LineInstr));
stp->current_li = 0;
- stp->func_line = (int *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->func_line = (int *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_functions *
sizeof(int));
@@ -1677,7 +1694,7 @@ read_code_header(LoaderState* stp)
* Initialize label table.
*/
- stp->labels = (Label *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->labels = (Label *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_labels * sizeof(Label));
for (i = 0; i < stp->num_labels; i++) {
stp->labels[i].value = 0;
@@ -1703,9 +1720,9 @@ read_code_header(LoaderState* stp)
#define CodeNeed(w) do { \
ASSERT(ci <= code_buffer_size); \
if (code_buffer_size < ci+(w)) { \
- code_buffer_size = erts_next_heap_size(ci+(w), 0); \
- stp->code = code \
- = (BeamInstr *) erts_realloc(ERTS_ALC_T_CODE, \
+ code_buffer_size = 2*ci+(w); \
+ stp->code = code = \
+ (BeamInstr *) erts_realloc(ERTS_ALC_T_CODE, \
(void *) code, \
code_buffer_size * sizeof(BeamInstr)); \
} \
@@ -1731,6 +1748,7 @@ load_code(LoaderState* stp)
GenOp* last_op = NULL;
GenOp** last_op_next = NULL;
int arity;
+ int retval = 1;
/*
* The size of the loaded func_info instruction is needed
@@ -2457,7 +2475,11 @@ load_code(LoaderState* stp)
case op_int_code_end:
stp->code_buffer_size = code_buffer_size;
stp->ci = ci;
- return 1;
+ stp->function = THE_NON_VALUE;
+ stp->genop = NULL;
+ stp->specific_op = -1;
+ retval = 1;
+ goto cleanup;
}
/*
@@ -2471,9 +2493,20 @@ load_code(LoaderState* stp)
}
}
-
load_error:
- return 0;
+ retval = 0;
+
+ cleanup:
+ /*
+ * Clean up everything that is not needed any longer.
+ */
+
+ while (stp->genop_blocks) {
+ GenOpBlock* next = stp->genop_blocks->next;
+ erts_free(ERTS_ALC_T_LOADER_TMP, (void *) stp->genop_blocks);
+ stp->genop_blocks = next;
+ }
+ return retval;
}
@@ -4265,24 +4298,31 @@ final_touch(LoaderState* stp)
index = next;
}
modp = erts_put_module(stp->module);
- modp->catches = catches;
+ modp->curr.catches = catches;
/*
* Export functions.
*/
for (i = 0; i < stp->num_exps; i++) {
- Export* ep = erts_export_put(stp->module, stp->export[i].function,
- stp->export[i].arity);
+ Export* ep;
+ BeamInstr* address = stp->export[i].address;
+
+ if (address == NULL) {
+ /* Skip stub for a BIF */
+ continue;
+ }
+ ep = erts_export_put(stp->module, stp->export[i].function,
+ stp->export[i].arity);
if (!on_load) {
- ep->address = stp->export[i].address;
+ ep->addressv[erts_staging_code_ix()] = address;
} else {
/*
* Don't make any of the exported functions
* callable yet.
*/
- ep->address = ep->code+3;
- ep->code[4] = (BeamInstr) stp->export[i].address;
+ ep->addressv[erts_staging_code_ix()] = ep->code+3;
+ ep->code[4] = (BeamInstr) address;
}
}
@@ -4926,7 +4966,7 @@ new_label(LoaderState* stp)
int num = stp->num_labels;
stp->num_labels++;
- stp->labels = (Label *) erts_realloc(ERTS_ALC_T_LOADER_TMP,
+ stp->labels = (Label *) erts_realloc(ERTS_ALC_T_PREPARED_CODE,
(void *) stp->labels,
stp->num_labels * sizeof(Label));
stp->labels[num].value = 0;
@@ -4937,7 +4977,8 @@ new_label(LoaderState* stp)
static void
new_literal_patch(LoaderState* stp, int pos)
{
- LiteralPatch* p = erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(LiteralPatch));
+ LiteralPatch* p = erts_alloc(ERTS_ALC_T_PREPARED_CODE,
+ sizeof(LiteralPatch));
p->pos = pos;
p->next = stp->literal_patches;
stp->literal_patches = p;
@@ -4946,7 +4987,7 @@ new_literal_patch(LoaderState* stp, int pos)
static void
new_string_patch(LoaderState* stp, int pos)
{
- StringPatch* p = erts_alloc(ERTS_ALC_T_LOADER_TMP, sizeof(StringPatch));
+ StringPatch* p = erts_alloc(ERTS_ALC_T_PREPARED_CODE, sizeof(StringPatch));
p->pos = pos;
p->next = stp->string_patches;
stp->string_patches = p;
@@ -4964,14 +5005,14 @@ new_literal(LoaderState* stp, Eterm** hpp, Uint heap_size)
ASSERT(stp->num_literals == 0);
stp->allocated_literals = 8;
need = stp->allocated_literals * sizeof(Literal);
- stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ stp->literals = (Literal *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
need);
} else if (stp->allocated_literals <= stp->num_literals) {
Uint need;
stp->allocated_literals *= 2;
need = stp->allocated_literals * sizeof(Literal);
- stp->literals = (Literal *) erts_realloc(ERTS_ALC_T_LOADER_TMP,
+ stp->literals = (Literal *) erts_realloc(ERTS_ALC_T_PREPARED_CODE,
(void *) stp->literals,
need);
}
@@ -4980,7 +5021,7 @@ new_literal(LoaderState* stp, Eterm** hpp, Uint heap_size)
lit = stp->literals + stp->num_literals;
lit->offset = 0;
lit->heap_size = heap_size;
- lit->heap = erts_alloc(ERTS_ALC_T_LOADER_TMP, heap_size*sizeof(Eterm));
+ lit->heap = erts_alloc(ERTS_ALC_T_PREPARED_CODE, heap_size*sizeof(Eterm));
lit->term = make_boxed(lit->heap);
lit->off_heap.first = 0;
lit->off_heap.overhead = 0;
@@ -4999,7 +5040,7 @@ erts_module_info_0(Process* p, Eterm module)
return THE_NON_VALUE;
}
- if (erts_get_module(module) == NULL) {
+ if (erts_get_module(module, erts_active_code_ix()) == NULL) {
return THE_NON_VALUE;
}
@@ -5054,32 +5095,43 @@ functions_in_module(Process* p, /* Process whose heap to use. */
BeamInstr* code;
int i;
Uint num_functions;
+ Uint need;
Eterm* hp;
+ Eterm* hp_end;
Eterm result = NIL;
if (is_not_atom(mod)) {
return THE_NON_VALUE;
}
- modp = erts_get_module(mod);
+ modp = erts_get_module(mod, erts_active_code_ix());
if (modp == NULL) {
return THE_NON_VALUE;
}
- code = modp->code;
+ code = modp->curr.code;
num_functions = code[MI_NUM_FUNCTIONS];
- hp = HAlloc(p, 5*num_functions);
+ need = 5*num_functions;
+ hp = HAlloc(p, need);
+ hp_end = hp + need;
for (i = num_functions-1; i >= 0 ; i--) {
BeamInstr* func_info = (BeamInstr *) code[MI_FUNCTIONS+i];
Eterm name = (Eterm) func_info[3];
int arity = (int) func_info[4];
Eterm tuple;
- ASSERT(is_atom(name));
- tuple = TUPLE2(hp, name, make_small(arity));
- hp += 3;
- result = CONS(hp, tuple, result);
- hp += 2;
+ /*
+ * If the function name is [], this entry is a stub for
+ * a BIF that should be ignored.
+ */
+ ASSERT(is_atom(name) || is_nil(name));
+ if (is_atom(name)) {
+ tuple = TUPLE2(hp, name, make_small(arity));
+ hp += 3;
+ result = CONS(hp, tuple, result);
+ hp += 2;
+ }
}
+ HRelease(p, hp_end, hp);
return result;
}
@@ -5106,12 +5158,12 @@ native_addresses(Process* p, Eterm mod)
return THE_NON_VALUE;
}
- modp = erts_get_module(mod);
+ modp = erts_get_module(mod, erts_active_code_ix());
if (modp == NULL) {
return THE_NON_VALUE;
}
- code = modp->code;
+ code = modp->curr.code;
num_functions = code[MI_NUM_FUNCTIONS];
need = (6+BIG_UINT_HEAP_SIZE)*num_functions;
hp = HAlloc(p, need);
@@ -5122,9 +5174,11 @@ native_addresses(Process* p, Eterm mod)
int arity = (int) func_info[4];
Eterm tuple;
- ASSERT(is_atom(name));
+ ASSERT(is_atom(name) || is_nil(name)); /* [] if BIF stub */
if (func_info[1] != 0) {
- Eterm addr = erts_bld_uint(&hp, NULL, func_info[1]);
+ Eterm addr;
+ ASSERT(is_atom(name));
+ addr = erts_bld_uint(&hp, NULL, func_info[1]);
tuple = erts_bld_tuple(&hp, NULL, 3, name, make_small(arity), addr);
result = erts_bld_cons(&hp, NULL, tuple, result);
}
@@ -5149,18 +5203,20 @@ exported_from_module(Process* p, /* Process whose heap to use. */
Eterm* hp = NULL;
Eterm* hend = NULL;
Eterm result = NIL;
+ ErtsCodeIndex code_ix;
if (is_not_atom(mod)) {
return THE_NON_VALUE;
}
- for (i = 0; i < export_list_size(); i++) {
- Export* ep = export_list(i);
+ code_ix = erts_active_code_ix();
+ for (i = 0; i < export_list_size(code_ix); i++) {
+ Export* ep = export_list(i,code_ix);
if (ep->code[0] == mod) {
Eterm tuple;
- if (ep->address == ep->code+3 &&
+ if (ep->addressv[code_ix] == ep->code+3 &&
ep->code[3] == (BeamInstr) em_call_error_handler) {
/* There is a call to the function, but it does not exist. */
continue;
@@ -5204,11 +5260,11 @@ attributes_for_module(Process* p, /* Process whose heap to use. */
return THE_NON_VALUE;
}
- modp = erts_get_module(mod);
+ modp = erts_get_module(mod, erts_active_code_ix());
if (modp == NULL) {
return THE_NON_VALUE;
}
- code = modp->code;
+ code = modp->curr.code;
ext = (byte *) code[MI_ATTR_PTR];
if (ext != NULL) {
hp = HAlloc(p, code[MI_ATTR_SIZE_ON_HEAP]);
@@ -5244,11 +5300,11 @@ compilation_info_for_module(Process* p, /* Process whose heap to use. */
return THE_NON_VALUE;
}
- modp = erts_get_module(mod);
+ modp = erts_get_module(mod, erts_active_code_ix());
if (modp == NULL) {
return THE_NON_VALUE;
}
- code = modp->code;
+ code = modp->curr.code;
ext = (byte *) code[MI_COMPILE_PTR];
if (ext != NULL) {
hp = HAlloc(p, code[MI_COMPILE_SIZE_ON_HEAP]);
@@ -5263,113 +5319,6 @@ compilation_info_for_module(Process* p, /* Process whose heap to use. */
}
/*
- * Find a function from the given pc and fill information in
- * the FunctionInfo struct. If the full_info is non-zero, fill
- * in all available information (including location in the
- * source code). If no function is found, the 'current' field
- * will be set to NULL.
- */
-
-void
-erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info)
-{
- Range* low = modules;
- Range* high = low + num_loaded_modules;
- Range* mid = mid_module;
-
- fi->current = NULL;
- fi->needed = 5;
- fi->loc = LINE_INVALID_LOCATION;
- while (low < high) {
- if (pc < mid->start) {
- high = mid;
- } else if (pc > mid->end) {
- low = mid + 1;
- } else {
- BeamInstr** low1 = (BeamInstr **) (mid->start + MI_FUNCTIONS);
- BeamInstr** high1 = low1 + mid->start[MI_NUM_FUNCTIONS];
- BeamInstr** mid1;
-
- while (low1 < high1) {
- mid1 = low1 + (high1-low1) / 2;
- if (pc < mid1[0]) {
- high1 = mid1;
- } else if (pc < mid1[1]) {
- mid_module = mid;
- fi->current = mid1[0]+2;
- if (full_info) {
- BeamInstr** fp = (BeamInstr **) (mid->start +
- MI_FUNCTIONS);
- int idx = mid1 - fp;
- lookup_loc(fi, pc, mid->start, idx);
- }
- return;
- } else {
- low1 = mid1 + 1;
- }
- }
- return;
- }
- mid = low + (high-low) / 2;
- }
-}
-
-static void
-lookup_loc(FunctionInfo* fi, BeamInstr* orig_pc, BeamInstr* modp, int idx)
-{
- Eterm* line = (Eterm *) modp[MI_LINE_TABLE];
- Eterm* low;
- Eterm* high;
- Eterm* mid;
- Eterm pc;
-
- if (line == 0) {
- return;
- }
-
- pc = (Eterm) (BeamInstr) orig_pc;
- fi->fname_ptr = (Eterm *) (BeamInstr) line[MI_LINE_FNAME_PTR];
- low = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx];
- high = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx+1];
- while (high > low) {
- mid = low + (high-low) / 2;
- if (pc < mid[0]) {
- high = mid;
- } else if (pc < mid[1]) {
- int file;
- int index = mid - (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB];
-
- if (line[MI_LINE_LOC_SIZE] == 2) {
- Uint16* loc_table =
- (Uint16 *) (BeamInstr) line[MI_LINE_LOC_TAB];
- fi->loc = loc_table[index];
- } else {
- Uint32* loc_table =
- (Uint32 *) (BeamInstr) line[MI_LINE_LOC_TAB];
- ASSERT(line[MI_LINE_LOC_SIZE] == 4);
- fi->loc = loc_table[index];
- }
- if (fi->loc == LINE_INVALID_LOCATION) {
- return;
- }
- fi->needed += 3+2+3+2;
- file = LOC_FILE(fi->loc);
- if (file == 0) {
- /* Special case: Module name with ".erl" appended */
- Atom* mod_atom = atom_tab(atom_val(fi->current[0]));
- fi->needed += 2*(mod_atom->len+4);
- } else {
- Atom* ap = atom_tab(atom_val((fi->fname_ptr)[file-1]));
- fi->needed += 2*ap->len;
- }
- return;
- } else {
- low = mid + 1;
- }
- }
-}
-
-/*
* Build a single {M,F,A,Loction} item to be part of
* a stack trace.
*/
@@ -5449,6 +5398,7 @@ code_get_chunk_2(BIF_ALIST_2)
Process* p = BIF_P;
Eterm Bin = BIF_ARG_1;
Eterm Chunk = BIF_ARG_2;
+ Binary* magic = 0;
LoaderState* stp;
Uint chunk = 0;
ErlSubBin* sb;
@@ -5461,12 +5411,13 @@ code_get_chunk_2(BIF_ALIST_2)
Eterm real_bin;
byte* temp_alloc = NULL;
- stp = erts_alloc_loader_state();
+ magic = erts_alloc_loader_state();
+ stp = ERTS_MAGIC_BIN_DATA(magic);
if ((start = erts_get_aligned_binary_bytes(Bin, &temp_alloc)) == NULL) {
error:
erts_free_aligned_binary_bytes(temp_alloc);
- if (stp) {
- free_state(stp);
+ if (magic) {
+ free_loader_state(magic);
}
BIF_ERROR(p, BADARG);
}
@@ -5511,7 +5462,7 @@ code_get_chunk_2(BIF_ALIST_2)
done:
erts_free_aligned_binary_bytes(temp_alloc);
- free_state(stp);
+ free_loader_state(magic);
return res;
}
@@ -5524,14 +5475,16 @@ code_module_md5_1(BIF_ALIST_1)
{
Process* p = BIF_P;
Eterm Bin = BIF_ARG_1;
+ Binary* magic;
LoaderState* stp;
byte* bytes;
byte* temp_alloc = NULL;
Eterm res;
- stp = erts_alloc_loader_state();
+ magic = erts_alloc_loader_state();
+ stp = ERTS_MAGIC_BIN_DATA(magic);
if ((bytes = erts_get_aligned_binary_bytes(Bin, &temp_alloc)) == NULL) {
- free_state(stp);
+ free_loader_state(magic);
BIF_ERROR(p, BADARG);
}
stp->module = THE_NON_VALUE; /* Suppress diagnostiscs */
@@ -5545,7 +5498,7 @@ code_module_md5_1(BIF_ALIST_1)
done:
erts_free_aligned_binary_bytes(temp_alloc);
- free_state(stp);
+ free_loader_state(magic);
return res;
}
@@ -5601,7 +5554,7 @@ stub_read_export_table(LoaderState* stp)
stp->num_exps, stp->num_functions);
}
stp->export
- = (ExportEntry *) erts_alloc(ERTS_ALC_T_LOADER_TMP,
+ = (ExportEntry *) erts_alloc(ERTS_ALC_T_PREPARED_CODE,
stp->num_exps * sizeof(ExportEntry));
for (i = 0; i < stp->num_exps; i++) {
@@ -5627,20 +5580,29 @@ stub_final_touch(LoaderState* stp, BeamInstr* fp)
{
int i;
int n = stp->num_exps;
+ Eterm mod = fp[2];
Eterm function = fp[3];
int arity = fp[4];
#ifdef HIPE
Lambda* lp;
#endif
+ if (is_bif(mod, function, arity)) {
+ fp[1] = 0;
+ fp[2] = 0;
+ fp[3] = 0;
+ fp[4] = 0;
+ return;
+ }
+
/*
* Test if the function should be exported.
*/
for (i = 0; i < n; i++) {
if (stp->export[i].function == function && stp->export[i].arity == arity) {
- Export* ep = erts_export_put(fp[2], function, arity);
- ep->address = fp+5;
+ Export* ep = erts_export_put(mod, function, arity);
+ ep->addressv[erts_staging_code_ix()] = fp+5;
return;
}
}
@@ -5819,6 +5781,7 @@ patch_funentries(Eterm Patchlist)
Eterm
erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
{
+ Binary* magic;
LoaderState* stp;
BeamInstr Funcs;
BeamInstr Patchlist;
@@ -5840,7 +5803,8 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
* Must initialize stp->lambdas here because the error handling code
* at label 'error' uses it.
*/
- stp = erts_alloc_loader_state();
+ magic = erts_alloc_loader_state();
+ stp = ERTS_MAGIC_BIN_DATA(magic);
if (is_not_atom(Mod)) {
goto error;
@@ -5920,7 +5884,6 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
code[MI_COMPILE_PTR] = 0;
code[MI_COMPILE_SIZE] = 0;
code[MI_COMPILE_SIZE_ON_HEAP] = 0;
- code[MI_NUM_BREAKPOINTS] = 0;
code[MI_LITERALS_START] = 0;
code[MI_LITERALS_END] = 0;
code[MI_LITERALS_OFF_HEAP] = 0;
@@ -6028,13 +5991,13 @@ erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info)
if (patch_funentries(Patchlist)) {
erts_free_aligned_binary_bytes(temp_alloc);
- free_state(stp);
+ free_loader_state(magic);
return Mod;
}
error:
erts_free_aligned_binary_bytes(temp_alloc);
- free_state(stp);
+ free_loader_state(magic);
BIF_ERROR(p, BADARG);
}
@@ -6051,3 +6014,4 @@ static int safe_mul(UWord a, UWord b, UWord* resp)
return (res / b) == a;
}
}
+
diff --git a/erts/emulator/beam/beam_load.h b/erts/emulator/beam/beam_load.h
index 997ba197db..1048f258a5 100644
--- a/erts/emulator/beam/beam_load.h
+++ b/erts/emulator/beam/beam_load.h
@@ -49,11 +49,6 @@ extern void** beam_ops;
extern BeamInstr beam_debug_apply[];
extern BeamInstr* em_call_error_handler;
extern BeamInstr* em_apply_bif;
-extern BeamInstr* em_call_traced_function;
-typedef struct {
- BeamInstr* start; /* Pointer to start of module. */
- BeamInstr* end; /* Points one word beyond last function in module. */
-} Range;
/*
* The following variables keep a sorted list of address ranges for
@@ -61,11 +56,6 @@ typedef struct {
* instruction pointer.
*/
-extern Range* modules;
-extern int num_loaded_modules;
-extern int allocated_modules;
-extern Range* mid_module;
-
/* Total code size in bytes */
extern Uint erts_total_code_size;
/*
@@ -94,27 +84,22 @@ extern Uint erts_total_code_size;
#define MI_COMPILE_SIZE_ON_HEAP 6
/*
- * Number of breakpoints in module is stored in this word
- */
-#define MI_NUM_BREAKPOINTS 7
-
-/*
* Literal area (constant pool).
*/
-#define MI_LITERALS_START 8
-#define MI_LITERALS_END 9
-#define MI_LITERALS_OFF_HEAP 10
+#define MI_LITERALS_START 7
+#define MI_LITERALS_END 8
+#define MI_LITERALS_OFF_HEAP 9
/*
* Pointer to the on_load function (or NULL if none).
*/
-#define MI_ON_LOAD_FUNCTION_PTR 11
+#define MI_ON_LOAD_FUNCTION_PTR 10
/*
* Pointer to the line table (or NULL if none).
*/
-#define MI_LINE_TABLE 12
+#define MI_LINE_TABLE 11
/*
* Start of function pointer table. This table contains pointers to
@@ -125,5 +110,27 @@ extern Uint erts_total_code_size;
* this table.
*/
-#define MI_FUNCTIONS 13
+#define MI_FUNCTIONS 12
+
+/*
+ * Layout of the line table.
+ */
+
+#define MI_LINE_FNAME_PTR 0
+#define MI_LINE_LOC_TAB 1
+#define MI_LINE_LOC_SIZE 2
+#define MI_LINE_FUNC_TAB 3
+
+#define LINE_INVALID_LOCATION (0)
+
+/*
+ * Macros for manipulating locations.
+ */
+
+#define IS_VALID_LOCATION(File, Line) \
+ ((unsigned) (File) < 255 && (unsigned) (Line) < ((1 << 24) - 1))
+#define MAKE_LOCATION(File, Line) (((File) << 24) | (Line))
+#define LOC_FILE(Loc) ((Loc) >> 24)
+#define LOC_LINE(Loc) ((Loc) & ((1 << 24)-1))
+
#endif /* _BEAM_LOAD_H */
diff --git a/erts/emulator/beam/beam_ranges.c b/erts/emulator/beam/beam_ranges.c
new file mode 100644
index 0000000000..0f2d5d0c2a
--- /dev/null
+++ b/erts/emulator/beam/beam_ranges.c
@@ -0,0 +1,349 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "sys.h"
+#include "erl_vm.h"
+#include "global.h"
+#include "beam_load.h"
+
+typedef struct {
+ BeamInstr* start; /* Pointer to start of module. */
+ erts_smp_atomic_t end; /* (BeamInstr*) Points one word beyond last function in module. */
+} Range;
+
+/* Range 'end' needs to be atomic as we purge module
+ by setting end=start in active code_ix */
+#define RANGE_END(R) ((BeamInstr*)erts_smp_atomic_read_nob(&(R)->end))
+
+static Range* find_range(BeamInstr* pc);
+static void lookup_loc(FunctionInfo* fi, BeamInstr* pc,
+ BeamInstr* modp, int idx);
+
+/*
+ * The following variables keep a sorted list of address ranges for
+ * each module. It allows us to quickly find a function given an
+ * instruction pointer.
+ */
+struct ranges {
+ Range* modules; /* Sorted lists of module addresses. */
+ Sint n; /* Number of range entries. */
+ Sint allocated; /* Number of allocated entries. */
+ erts_smp_atomic_t mid; /* Cached search start point */
+};
+static struct ranges r[ERTS_NUM_CODE_IX];
+static erts_smp_atomic_t mem_used;
+
+#ifdef HARD_DEBUG
+static void check_consistency(struct ranges* p)
+{
+ int i;
+
+ ASSERT(p->n <= p->allocated);
+ ASSERT((Uint)(p->mid - p->modules) < p->n ||
+ (p->mid == p->modules && p->n == 0));
+ for (i = 0; i < p->n; i++) {
+ ASSERT(p->modules[i].start <= RANGE_END(&p->modules[i]));
+ ASSERT(!i || RANGE_END(&p->modules[i-1]) < p->modules[i].start);
+ }
+}
+# define CHECK(r) check_consistency(r)
+#else
+# define CHECK(r)
+#endif /* HARD_DEBUG */
+
+
+void
+erts_init_ranges(void)
+{
+ Sint i;
+
+ erts_smp_atomic_init_nob(&mem_used, 0);
+ for (i = 0; i < ERTS_NUM_CODE_IX; i++) {
+ r[i].modules = 0;
+ r[i].n = 0;
+ r[i].allocated = 0;
+ erts_smp_atomic_init_nob(&r[i].mid, 0);
+ }
+}
+
+void
+erts_start_staging_ranges(void)
+{
+ ErtsCodeIndex dst = erts_staging_code_ix();
+
+ if (r[dst].modules) {
+ erts_smp_atomic_add_nob(&mem_used, -r[dst].allocated);
+ erts_free(ERTS_ALC_T_MODULE_REFS, r[dst].modules);
+ r[dst].modules = NULL;
+ }
+}
+
+void
+erts_end_staging_ranges(int commit)
+{
+ ErtsCodeIndex dst = erts_staging_code_ix();
+
+ if (commit && r[dst].modules == NULL) {
+ Sint i;
+ Sint n;
+
+ /* No modules added, just clone src and remove purged code. */
+ ErtsCodeIndex src = erts_active_code_ix();
+
+ erts_smp_atomic_add_nob(&mem_used, r[src].n);
+ r[dst].modules = erts_alloc(ERTS_ALC_T_MODULE_REFS,
+ r[src].n * sizeof(Range));
+ r[dst].allocated = r[src].n;
+ n = 0;
+ for (i = 0; i < r[src].n; i++) {
+ Range* rp = r[src].modules+i;
+ if (rp->start < RANGE_END(rp)) {
+ /* Only insert a module that has not been purged. */
+ r[dst].modules[n] = *rp;
+ n++;
+ }
+ }
+ r[dst].n = n;
+ erts_smp_atomic_set_nob(&r[dst].mid,
+ (erts_aint_t) (r[dst].modules + n / 2));
+ }
+}
+
+void
+erts_update_ranges(BeamInstr* code, Uint size)
+{
+ ErtsCodeIndex dst = erts_staging_code_ix();
+ ErtsCodeIndex src = erts_active_code_ix();
+ Sint i;
+ Sint n;
+ Sint need;
+
+ if (src == dst) {
+ ASSERT(!erts_initialized);
+
+ /*
+ * During start-up of system, the indices are the same.
+ * Handle this by faking a source area.
+ */
+ src = (src+1) % ERTS_NUM_CODE_IX;
+ if (r[src].modules) {
+ erts_smp_atomic_add_nob(&mem_used, -r[src].allocated);
+ erts_free(ERTS_ALC_T_MODULE_REFS, r[src].modules);
+ }
+ r[src] = r[dst];
+ r[dst].modules = 0;
+ }
+
+ CHECK(&r[src]);
+
+ ASSERT(r[dst].modules == NULL);
+ need = r[dst].allocated = r[src].n + 1;
+ erts_smp_atomic_add_nob(&mem_used, need);
+ r[dst].modules = (Range *) erts_alloc(ERTS_ALC_T_MODULE_REFS,
+ need * sizeof(Range));
+ n = 0;
+ for (i = 0; i < r[src].n; i++) {
+ Range* rp = r[src].modules+i;
+ if (code < rp->start) {
+ r[dst].modules[n].start = code;
+ erts_smp_atomic_init_nob(&r[dst].modules[n].end,
+ (erts_aint_t)(((byte *)code) + size));
+ ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < code);
+ n++;
+ break;
+ }
+ if (rp->start < RANGE_END(rp)) {
+ /* Only insert a module that has not been purged. */
+ r[dst].modules[n].start = rp->start;
+ erts_smp_atomic_init_nob(&r[dst].modules[n].end,
+ (erts_aint_t)(RANGE_END(rp)));
+ ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < rp->start);
+ n++;
+ }
+ }
+
+ while (i < r[src].n) {
+ Range* rp = r[src].modules+i;
+ if (rp->start < RANGE_END(rp)) {
+ /* Only insert a module that has not been purged. */
+ r[dst].modules[n].start = rp->start;
+ erts_smp_atomic_init_nob(&r[dst].modules[n].end,
+ (erts_aint_t)(RANGE_END(rp)));
+ ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < rp->start);
+ n++;
+ }
+ i++;
+ }
+
+ if (n == 0 || code > r[dst].modules[n-1].start) {
+ r[dst].modules[n].start = code;
+ erts_smp_atomic_init_nob(&r[dst].modules[n].end,
+ (erts_aint_t)(((byte *)code) + size));
+ ASSERT(!n || RANGE_END(&r[dst].modules[n-1]) < code);
+ n++;
+ }
+
+ ASSERT(n <= r[src].n+1);
+ r[dst].n = n;
+ erts_smp_atomic_set_nob(&r[dst].mid,
+ (erts_aint_t) (r[dst].modules + n / 2));
+
+ CHECK(&r[dst]);
+ CHECK(&r[src]);
+}
+
+void
+erts_remove_from_ranges(BeamInstr* code)
+{
+ Range* rp = find_range(code);
+ erts_smp_atomic_set_nob(&rp->end, (erts_aint_t)rp->start);
+}
+
+UWord
+erts_ranges_sz(void)
+{
+ return erts_smp_atomic_read_nob(&mem_used) * sizeof(Range);
+}
+
+/*
+ * Find a function from the given pc and fill information in
+ * the FunctionInfo struct. If the full_info is non-zero, fill
+ * in all available information (including location in the
+ * source code). If no function is found, the 'current' field
+ * will be set to NULL.
+ */
+
+void
+erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info)
+{
+ BeamInstr** low;
+ BeamInstr** high;
+ BeamInstr** mid;
+ Range* rp;
+
+ fi->current = NULL;
+ fi->needed = 5;
+ fi->loc = LINE_INVALID_LOCATION;
+ rp = find_range(pc);
+ if (rp == 0) {
+ return;
+ }
+
+ low = (BeamInstr **) (rp->start + MI_FUNCTIONS);
+ high = low + rp->start[MI_NUM_FUNCTIONS];
+ while (low < high) {
+ mid = low + (high-low) / 2;
+ if (pc < mid[0]) {
+ high = mid;
+ } else if (pc < mid[1]) {
+ fi->current = mid[0]+2;
+ if (full_info) {
+ BeamInstr** fp = (BeamInstr **) (rp->start +
+ MI_FUNCTIONS);
+ int idx = mid - fp;
+ lookup_loc(fi, pc, rp->start, idx);
+ }
+ return;
+ } else {
+ low = mid + 1;
+ }
+ }
+}
+
+static Range*
+find_range(BeamInstr* pc)
+{
+ ErtsCodeIndex active = erts_active_code_ix();
+ Range* low = r[active].modules;
+ Range* high = low + r[active].n;
+ Range* mid = (Range *) erts_smp_atomic_read_nob(&r[active].mid);
+
+ CHECK(&r[active]);
+ while (low < high) {
+ if (pc < mid->start) {
+ high = mid;
+ } else if (pc > RANGE_END(mid)) {
+ low = mid + 1;
+ } else {
+ erts_smp_atomic_set_nob(&r[active].mid, (erts_aint_t) mid);
+ return mid;
+ }
+ mid = low + (high-low) / 2;
+ }
+ return 0;
+}
+
+static void
+lookup_loc(FunctionInfo* fi, BeamInstr* orig_pc, BeamInstr* modp, int idx)
+{
+ Eterm* line = (Eterm *) modp[MI_LINE_TABLE];
+ Eterm* low;
+ Eterm* high;
+ Eterm* mid;
+ Eterm pc;
+
+ if (line == 0) {
+ return;
+ }
+
+ pc = (Eterm) (BeamInstr) orig_pc;
+ fi->fname_ptr = (Eterm *) (BeamInstr) line[MI_LINE_FNAME_PTR];
+ low = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx];
+ high = (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB+idx+1];
+ while (high > low) {
+ mid = low + (high-low) / 2;
+ if (pc < mid[0]) {
+ high = mid;
+ } else if (pc < mid[1]) {
+ int file;
+ int index = mid - (Eterm *) (BeamInstr) line[MI_LINE_FUNC_TAB];
+
+ if (line[MI_LINE_LOC_SIZE] == 2) {
+ Uint16* loc_table =
+ (Uint16 *) (BeamInstr) line[MI_LINE_LOC_TAB];
+ fi->loc = loc_table[index];
+ } else {
+ Uint32* loc_table =
+ (Uint32 *) (BeamInstr) line[MI_LINE_LOC_TAB];
+ ASSERT(line[MI_LINE_LOC_SIZE] == 4);
+ fi->loc = loc_table[index];
+ }
+ if (fi->loc == LINE_INVALID_LOCATION) {
+ return;
+ }
+ fi->needed += 3+2+3+2;
+ file = LOC_FILE(fi->loc);
+ if (file == 0) {
+ /* Special case: Module name with ".erl" appended */
+ Atom* mod_atom = atom_tab(atom_val(fi->current[0]));
+ fi->needed += 2*(mod_atom->len+4);
+ } else {
+ Atom* ap = atom_tab(atom_val((fi->fname_ptr)[file-1]));
+ fi->needed += 2*ap->len;
+ }
+ return;
+ } else {
+ low = mid + 1;
+ }
+ }
+}
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index fc00b42454..6943c8852c 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -233,15 +233,17 @@ BIF_RETTYPE link_1(BIF_ALIST_1)
BIF_ERROR(BIF_P, BADARG);
- res_no_proc:
- if (BIF_P->flags & F_TRAPEXIT) {
- ErtsProcLocks locks = ERTS_PROC_LOCK_MAIN;
- erts_deliver_exit_message(BIF_ARG_1, BIF_P, &locks, am_noproc, NIL);
- erts_smp_proc_unlock(BIF_P, ~ERTS_PROC_LOCK_MAIN & locks);
- BIF_RET(am_true);
+res_no_proc: {
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&BIF_P->state);
+ if (state & ERTS_PSFLG_TRAP_EXIT) {
+ ErtsProcLocks locks = ERTS_PROC_LOCK_MAIN;
+ erts_deliver_exit_message(BIF_ARG_1, BIF_P, &locks, am_noproc, NIL);
+ erts_smp_proc_unlock(BIF_P, ~ERTS_PROC_LOCK_MAIN & locks);
+ BIF_RET(am_true);
+ }
+ else
+ BIF_ERROR(BIF_P, EXC_NOPROC);
}
- else
- BIF_ERROR(BIF_P, EXC_NOPROC);
}
#define ERTS_DEMONITOR_FALSE 2
@@ -1103,8 +1105,9 @@ BIF_RETTYPE hibernate_3(BIF_ALIST_3)
if (erts_hibernate(BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3, reg)) {
/*
- * If hibernate succeeded, TRAP. The process will be suspended
- * if status is P_WAITING or continue (if any message was in the queue).
+ * If hibernate succeeded, TRAP. The process will be wait in a
+ * hibernated state if its state is inactive (!ERTS_PSFLG_ACTIVE);
+ * otherwise, continue executing (if any message was in the queue).
*/
BIF_TRAP_CODE_PTR_(BIF_P, BIF_P->i);
}
@@ -1403,9 +1406,8 @@ BIF_RETTYPE exit_2(BIF_ALIST_2)
}
else {
rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- rp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN,
- BIF_ARG_1, rp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
+ BIF_ARG_1, rp_locks);
if (!rp) {
BIF_RET(am_true);
}
@@ -1427,8 +1429,6 @@ BIF_RETTYPE exit_2(BIF_ALIST_2)
rp_locks &= ~ERTS_PROC_LOCK_MAIN;
if (rp_locks)
erts_smp_proc_unlock(rp, rp_locks);
- if (rp != BIF_P)
- erts_smp_proc_dec_refc(rp);
#endif
/*
* We may have exited ourselves and may have to take action.
@@ -1502,14 +1502,13 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2)
BIF_RET(old_value);
}
else if (BIF_ARG_1 == am_priority) {
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_STATUS);
old_value = erts_set_process_priority(BIF_P, BIF_ARG_2);
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_STATUS);
if (old_value == THE_NON_VALUE)
goto error;
BIF_RET(old_value);
}
else if (BIF_ARG_1 == am_trap_exit) {
+ erts_aint32_t state;
Uint trap_exit;
if (BIF_ARG_2 == am_true) {
trap_exit = 1;
@@ -1524,59 +1523,52 @@ BIF_RETTYPE process_flag_2(BIF_ALIST_2)
* For more info, see implementation of erts_send_exit_signal().
*/
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_STATUS);
+ ERTS_SMP_LC_ASSERT((ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS)
+ & erts_proc_lc_my_proc_locks(BIF_P));
ERTS_SMP_BIF_CHK_PENDING_EXIT(BIF_P,
ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- old_value = ERTS_PROC_IS_TRAPPING_EXITS(BIF_P) ? am_true : am_false;
- if (trap_exit) {
- ERTS_PROC_SET_TRAP_EXIT(BIF_P);
- } else {
- ERTS_PROC_UNSET_TRAP_EXIT(BIF_P);
- }
+ if (trap_exit)
+ state = erts_smp_atomic32_read_bor_nob(&BIF_P->state,
+ ERTS_PSFLG_TRAP_EXIT);
+ else
+ state = erts_smp_atomic32_read_band_nob(&BIF_P->state,
+ ~ERTS_PSFLG_TRAP_EXIT);
+ old_value = (state & ERTS_PSFLG_TRAP_EXIT) ? am_true : am_false;
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_STATUS);
BIF_RET(old_value);
}
else if (BIF_ARG_1 == am_scheduler) {
- int yield;
- ErtsRunQueue *old;
- ErtsRunQueue *new;
+ ErtsRunQueue *old, *new, *curr;
Sint sched;
+ erts_aint32_t state;
+
if (!is_small(BIF_ARG_2))
goto error;
sched = signed_val(BIF_ARG_2);
if (sched < 0 || erts_no_schedulers < sched)
goto error;
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_STATUS);
- old = BIF_P->bound_runq;
-#ifdef ERTS_SMP
- ASSERT(!old || old == BIF_P->run_queue);
-#endif
- new = !sched ? NULL : erts_schedid2runq(sched);
-#ifndef ERTS_SMP
- yield = 0;
-#else
- if (new == old)
- yield = 0;
+
+ if (sched == 0) {
+ new = NULL;
+ state = erts_smp_atomic32_read_band_mb(&BIF_P->state,
+ ~ERTS_PSFLG_BOUND);
+ }
else {
- ErtsRunQueue *curr = BIF_P->run_queue;
- if (!new)
- erts_smp_runq_lock(curr);
- else
- erts_smp_runqs_lock(curr, new);
- yield = new && BIF_P->run_queue != new;
-#endif
- BIF_P->bound_runq = new;
+ new = erts_schedid2runq(sched);
#ifdef ERTS_SMP
- if (new)
- BIF_P->run_queue = new;
- if (!new)
- erts_smp_runq_unlock(curr);
- else
- erts_smp_runqs_unlock(curr, new);
- }
+ erts_atomic_set_nob(&BIF_P->run_queue, (erts_aint_t) new);
#endif
- erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_STATUS);
+ state = erts_smp_atomic32_read_bor_mb(&BIF_P->state,
+ ERTS_PSFLG_BOUND);
+ }
+
+ curr = ERTS_GET_SCHEDULER_DATA_FROM_PROC(BIF_P)->run_queue;
+ old = (ERTS_PSFLG_BOUND & state) ? curr : NULL;
+
+ ASSERT(!old || old == curr);
+
old_value = old ? make_small(old->ix+1) : make_small(0);
- if (yield)
+ if (new && new != curr)
ERTS_BIF_YIELD_RETURN_X(BIF_P, old_value, am_scheduler);
else
BIF_RET(old_value);
@@ -1826,8 +1818,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
if (internal_pid_index(to) >= erts_max_processes)
return SEND_BADARG;
- rp = erts_pid2proc_opt(p, ERTS_PROC_LOCK_MAIN,
- to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_proc_lookup_raw(to);
if (!rp) {
ERTS_SMP_ASSERT_IS_NOT_EXITING(p);
@@ -1865,7 +1856,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
}
erts_whereis_name(p, ERTS_PROC_LOCK_MAIN,
to,
- &rp, 0, ERTS_P2P_FLG_SMP_INC_REFC,
+ &rp, 0, 0,
&pt);
if (pt) {
@@ -2017,7 +2008,7 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
erts_whereis_name(p, ERTS_PROC_LOCK_MAIN,
tp[1],
- &rp, 0, ERTS_P2P_FLG_SMP_INC_REFC,
+ &rp, 0, 0,
&pt);
if (pt) {
portid = pt->id;
@@ -2076,7 +2067,6 @@ do_send(Process *p, Eterm to, Eterm msg, int suspend) {
p == rp
? (rp_locks & ~ERTS_PROC_LOCK_MAIN)
: rp_locks);
- erts_smp_proc_dec_refc(rp);
return res;
}
}
@@ -3486,7 +3476,7 @@ BIF_RETTYPE garbage_collect_1(BIF_ALIST_1)
if (rp == ERTS_PROC_LOCK_BUSY)
ERTS_BIF_YIELD1(bif_export[BIF_garbage_collect_1], BIF_P, BIF_ARG_1);
#else
- rp = erts_pid2proc(BIF_P, 0, BIF_ARG_1, 0);
+ rp = erts_proc_lookup(BIF_ARG_1);
#endif
if (!rp)
BIF_RET(am_false);
@@ -3780,7 +3770,8 @@ BIF_RETTYPE function_exported_3(BIF_ALIST_3)
is_not_small(BIF_ARG_3)) {
BIF_ERROR(BIF_P, BADARG);
}
- if (erts_find_function(BIF_ARG_1, BIF_ARG_2, signed_val(BIF_ARG_3)) == NULL) {
+ if (erts_find_function(BIF_ARG_1, BIF_ARG_2, signed_val(BIF_ARG_3),
+ erts_active_code_ix()) == NULL) {
BIF_RET(am_false);
}
BIF_RET(am_true);
@@ -4216,8 +4207,8 @@ BIF_RETTYPE system_flag_2(BIF_ALIST_2)
erts_smp_thr_progress_block();
for (i = 0; i < erts_max_processes; i++) {
- if (process_tab[i] != (Process*) 0) {
- Process* p = process_tab[i];
+ Process *p = erts_pix2proc(i);
+ if (p) {
#ifdef USE_VM_PROBES
p->seq_trace_token = (p->dt_utag != NIL) ? am_have_dt_utag : NIL;
#else
@@ -4513,6 +4504,21 @@ erts_bif_prep_await_proc_exit_apply_trap(Process *c_p,
Export bif_return_trap_export;
+void erts_init_trap_export(Export* ep, Eterm m, Eterm f, Uint a,
+ Eterm (*bif)(BIF_ALIST_0))
+{
+ int i;
+ sys_memset((void *) ep, 0, sizeof(Export));
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ ep->addressv[i] = &ep->code[3];
+ }
+ ep->code[0] = m;
+ ep->code[1] = f;
+ ep->code[2] = a;
+ ep->code[3] = (BeamInstr) em_apply_bif;
+ ep->code[4] = (BeamInstr) bif;
+}
+
void erts_init_bif(void)
{
reference0 = 0;
@@ -4528,17 +4534,13 @@ void erts_init_bif(void)
* yield the calling process traps to. The only thing it does:
* return the value passed as argument.
*/
- sys_memset((void *) &bif_return_trap_export, 0, sizeof(Export));
- bif_return_trap_export.address = &bif_return_trap_export.code[3];
- bif_return_trap_export.code[0] = am_erlang;
- bif_return_trap_export.code[1] = am_bif_return_trap;
+ erts_init_trap_export(&bif_return_trap_export, am_erlang, am_bif_return_trap,
#ifdef DEBUG
- bif_return_trap_export.code[2] = 2;
+ 2
#else
- bif_return_trap_export.code[2] = 1;
+ 1
#endif
- bif_return_trap_export.code[3] = (BeamInstr) em_apply_bif;
- bif_return_trap_export.code[4] = (BeamInstr) &bif_return_trap;
+ , &bif_return_trap);
flush_monitor_message_trap = erts_export_put(am_erlang,
am_flush_monitor_message,
diff --git a/erts/emulator/beam/bif.h b/erts/emulator/beam/bif.h
index d20089a9fb..7cb2c78815 100644
--- a/erts/emulator/beam/bif.h
+++ b/erts/emulator/beam/bif.h
@@ -125,7 +125,7 @@ do { \
#define ERTS_BIF_PREP_TRAP0(Ret, Trap, Proc) \
do { \
(Proc)->arity = 0; \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
(Ret) = THE_NON_VALUE; \
} while (0)
@@ -135,7 +135,7 @@ do { \
Eterm* reg = ERTS_PROC_GET_SCHDATA((Proc))->x_reg_array; \
(Proc)->arity = 1; \
reg[0] = (Eterm) (A0); \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
(Ret) = THE_NON_VALUE; \
} while (0)
@@ -146,7 +146,7 @@ do { \
(Proc)->arity = 2; \
reg[0] = (Eterm) (A0); \
reg[1] = (Eterm) (A1); \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
(Ret) = THE_NON_VALUE; \
} while (0)
@@ -158,7 +158,7 @@ do { \
reg[0] = (Eterm) (A0); \
reg[1] = (Eterm) (A1); \
reg[2] = (Eterm) (A2); \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
(Ret) = THE_NON_VALUE; \
} while (0)
@@ -170,13 +170,13 @@ do { \
reg[0] = (Eterm) (A0); \
reg[1] = (Eterm) (A1); \
reg[2] = (Eterm) (A2); \
- (Proc)->i = (BeamInstr*) ((Trap)->address); \
+ (Proc)->i = (BeamInstr*) ((Trap)->addressv[erts_active_code_ix()]); \
(Proc)->freason = TRAP; \
} while (0)
#define BIF_TRAP0(p, Trap_) do { \
(p)->arity = 0; \
- (p)->i = (BeamInstr*) ((Trap_)->address); \
+ (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \
(p)->freason = TRAP; \
return THE_NON_VALUE; \
} while(0)
@@ -185,7 +185,7 @@ do { \
Eterm* reg = ERTS_PROC_GET_SCHDATA((p))->x_reg_array; \
(p)->arity = 1; \
reg[0] = (A0); \
- (p)->i = (BeamInstr*) ((Trap_)->address); \
+ (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \
(p)->freason = TRAP; \
return THE_NON_VALUE; \
} while(0)
@@ -195,7 +195,7 @@ do { \
(p)->arity = 2; \
reg[0] = (A0); \
reg[1] = (A1); \
- (p)->i = (BeamInstr*) ((Trap_)->address); \
+ (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \
(p)->freason = TRAP; \
return THE_NON_VALUE; \
} while(0)
@@ -206,7 +206,7 @@ do { \
reg[0] = (A0); \
reg[1] = (A1); \
reg[2] = (A2); \
- (p)->i = (BeamInstr*) ((Trap_)->address); \
+ (p)->i = (BeamInstr*) ((Trap_)->addressv[erts_active_code_ix()]); \
(p)->freason = TRAP; \
return THE_NON_VALUE; \
} while(0)
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index 797bce43ab..f7dad2767f 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -142,8 +142,6 @@ bif erlang:list_to_pid/1
bif 'erl.lang.proc':string_to_pid/1 ebif_string_to_pid_1 list_to_pid_1
bif erlang:list_to_tuple/1
bif 'erl.lang.tuple':from_list/1 ebif_list_to_tuple_1
-bif erlang:load_module/2
-bif 'erl.system.code':load/2 ebif_load_module_2
bif erlang:loaded/0
bif 'erl.system.code':loaded/0 ebif_loaded_0
bif erlang:localtime/0
@@ -829,6 +827,13 @@ bif erlang:dt_restore_tag/1
bif erlang:dt_prepend_vm_tag_data/1
bif erlang:dt_append_vm_tag_data/1
+
+#
+# New in R16B.
+#
+bif erlang:prepare_loading/2
+bif erlang:finish_loading/1
+
#
# Obsolete
#
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index 6f5020dc14..0a51e00016 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -71,9 +71,10 @@ process_info(int to, void *to_arg)
{
int i;
for (i = 0; i < erts_max_processes; i++) {
- if ((process_tab[i] != NULL) && (process_tab[i]->i != ENULL)) {
- if (process_tab[i]->status != P_EXITING)
- print_process_info(to, to_arg, process_tab[i]);
+ Process *p = erts_pix2proc(i);
+ if (p && p->i != ENULL) {
+ if (!ERTS_PROC_IS_EXITING(p))
+ print_process_info(to, to_arg, p);
}
}
@@ -89,7 +90,8 @@ process_killer(void)
erts_printf("\n\nProcess Information\n\n");
erts_printf("--------------------------------------------------\n");
for (i = erts_max_processes-1; i >= 0; i--) {
- if (((rp = process_tab[i]) != NULL) && rp->i != ENULL) {
+ rp = erts_pix2proc(i);
+ if (rp && rp->i != ENULL) {
int br;
print_process_info(ERTS_PRINT_STDOUT, NULL, rp);
erts_printf("(k)ill (n)ext (r)eturn:\n");
@@ -97,11 +99,20 @@ process_killer(void)
if ((j = sys_get_key(0)) <= 0)
erl_exit(0, "");
switch(j) {
- case 'k':
- if (rp->status == P_WAITING) {
- ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- erts_smp_proc_inc_refc(rp);
- erts_smp_proc_lock(rp, rp_locks);
+ case 'k': {
+ ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
+ erts_aint32_t state;
+ erts_smp_proc_inc_refc(rp);
+ erts_smp_proc_lock(rp, rp_locks);
+ state = erts_smp_atomic32_read_acqb(&rp->state);
+ if (state & (ERTS_PSFLG_FREE
+ | ERTS_PSFLG_EXITING
+ | ERTS_PSFLG_ACTIVE
+ | ERTS_PSFLG_IN_RUNQ
+ | ERTS_PSFLG_RUNNING)) {
+ erts_printf("Can only kill WAITING processes this way\n");
+ }
+ else {
(void) erts_send_exit_signal(NULL,
NIL,
rp,
@@ -110,12 +121,10 @@ process_killer(void)
NIL,
NULL,
0);
- erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
}
- else
- erts_printf("Can only kill WAITING processes this way\n");
-
+ erts_smp_proc_unlock(rp, rp_locks);
+ erts_smp_proc_dec_refc(rp);
+ }
case 'n': br = 1; break;
case 'r': return;
default: return;
@@ -180,42 +189,38 @@ static void doit_print_monitor(ErtsMonitor *mon, void *vpcontext)
void
print_process_info(int to, void *to_arg, Process *p)
{
+ time_t approx_started;
int garbing = 0;
int running = 0;
- time_t tmp_t;
struct saved_calls *scb;
+ erts_aint32_t state;
/* display the PID */
erts_print(to, to_arg, "=proc:%T\n", p->id);
/* Display the state */
erts_print(to, to_arg, "State: ");
- switch (p->status) {
- case P_FREE:
+
+ state = erts_smp_atomic32_read_acqb(&p->state);
+ if (state & ERTS_PSFLG_FREE)
erts_print(to, to_arg, "Non Existing\n"); /* Should never happen */
- break;
- case P_RUNABLE:
- erts_print(to, to_arg, "Scheduled\n");
- break;
- case P_WAITING:
- erts_print(to, to_arg, "Waiting\n");
- break;
- case P_SUSPENDED:
- erts_print(to, to_arg, "Suspended\n");
- break;
- case P_RUNNING:
- erts_print(to, to_arg, "Running\n");
- running = 1;
- break;
- case P_EXITING:
+ else if (state & ERTS_PSFLG_EXITING)
erts_print(to, to_arg, "Exiting\n");
- break;
- case P_GARBING:
- erts_print(to, to_arg, "Garbing\n");
+ else if (state & ERTS_PSFLG_GC) {
garbing = 1;
running = 1;
- break;
+ erts_print(to, to_arg, "Garbing\n");
+ }
+ else if (state & ERTS_PSFLG_SUSPENDED)
+ erts_print(to, to_arg, "Suspended\n");
+ else if (state & ERTS_PSFLG_RUNNING) {
+ running = 1;
+ erts_print(to, to_arg, "Running\n");
}
+ else if (state & ERTS_PSFLG_ACTIVE)
+ erts_print(to, to_arg, "Scheduled\n");
+ else
+ erts_print(to, to_arg, "Waiting\n");
/*
* If the process is registered as a global process, display the
@@ -245,8 +250,8 @@ print_process_info(int to, void *to_arg, Process *p)
}
erts_print(to, to_arg, "Spawned by: %T\n", p->parent);
- tmp_t = p->started.tv_sec;
- erts_print(to, to_arg, "Started: %s", ctime(&tmp_t));
+ approx_started = (time_t) p->approx_started;
+ erts_print(to, to_arg, "Started: %s", ctime(&approx_started));
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(p);
erts_print(to, to_arg, "Message queue length: %d\n", p->msg.len);
@@ -377,17 +382,22 @@ loaded(int to, void *to_arg)
int old = 0;
int cur = 0;
BeamInstr* code;
+ Module* modp;
+ ErtsCodeIndex code_ix;
+
+ code_ix = erts_active_code_ix();
+ erts_rlock_old_code(code_ix);
/*
* Calculate and print totals.
*/
- for (i = 0; i < module_code_size(); i++) {
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
- cur += module_code(i)->code_length;
- if (module_code(i)->old_code_length != 0) {
- old += module_code(i)->old_code_length;
+ for (i = 0; i < module_code_size(code_ix); i++) {
+ if ((modp = module_code(i, code_ix)) != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
+ cur += modp->curr.code_length;
+ if (modp->old.code_length != 0) {
+ old += modp->old.code_length;
}
}
}
@@ -398,21 +408,22 @@ loaded(int to, void *to_arg)
* Print one line per module.
*/
- for (i = 0; i < module_code_size(); i++) {
+ for (i = 0; i < module_code_size(code_ix); i++) {
+ modp = module_code(i, code_ix);
if (!ERTS_IS_CRASH_DUMPING) {
/*
* Interactive dump; keep it brief.
*/
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
- erts_print(to, to_arg, "%T", make_atom(module_code(i)->module));
- cur += module_code(i)->code_length;
- erts_print(to, to_arg, " %d", module_code(i)->code_length );
- if (module_code(i)->old_code_length != 0) {
+ if (modp != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
+ erts_print(to, to_arg, "%T", make_atom(modp->module));
+ cur += modp->curr.code_length;
+ erts_print(to, to_arg, " %d", modp->curr.code_length );
+ if (modp->old.code_length != 0) {
erts_print(to, to_arg, " (%d old)",
- module_code(i)->old_code_length );
- old += module_code(i)->old_code_length;
+ modp->old.code_length );
+ old += modp->old.code_length;
}
erts_print(to, to_arg, "\n");
}
@@ -420,15 +431,15 @@ loaded(int to, void *to_arg)
/*
* To crash dump; make it parseable.
*/
- if (module_code(i) != NULL &&
- ((module_code(i)->code_length != 0) ||
- (module_code(i)->old_code_length != 0))) {
+ if (modp != NULL &&
+ ((modp->curr.code_length != 0) ||
+ (modp->old.code_length != 0))) {
erts_print(to, to_arg, "=mod:");
- erts_print(to, to_arg, "%T", make_atom(module_code(i)->module));
+ erts_print(to, to_arg, "%T", make_atom(modp->module));
erts_print(to, to_arg, "\n");
erts_print(to, to_arg, "Current size: %d\n",
- module_code(i)->code_length);
- code = module_code(i)->code;
+ modp->curr.code_length);
+ code = modp->curr.code;
if (code != NULL && code[MI_ATTR_PTR]) {
erts_print(to, to_arg, "Current attributes: ");
dump_attributes(to, to_arg, (byte *) code[MI_ATTR_PTR],
@@ -440,9 +451,9 @@ loaded(int to, void *to_arg)
code[MI_COMPILE_SIZE]);
}
- if (module_code(i)->old_code_length != 0) {
- erts_print(to, to_arg, "Old size: %d\n", module_code(i)->old_code_length);
- code = module_code(i)->old_code;
+ if (modp->old.code_length != 0) {
+ erts_print(to, to_arg, "Old size: %d\n", modp->old.code_length);
+ code = modp->old.code;
if (code[MI_ATTR_PTR]) {
erts_print(to, to_arg, "Old attributes: ");
dump_attributes(to, to_arg, (byte *) code[MI_ATTR_PTR],
@@ -457,6 +468,7 @@ loaded(int to, void *to_arg)
}
}
}
+ erts_runlock_old_code(code_ix);
}
@@ -616,7 +628,8 @@ bin_check(void)
int i, printed = 0;
for (i=0; i < erts_max_processes; i++) {
- if ((rp = process_tab[i]) == NULL)
+ rp = erts_pix2proc(i);
+ if (!rp)
continue;
for (hdr = rp->off_heap.first; hdr; hdr = hdr->next) {
if (hdr->thing_word == HEADER_PROC_BIN) {
@@ -704,7 +717,7 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
erts_print_nif_taints(fd, NULL);
erts_fdprintf(fd, "Atoms: %d\n", atom_table_size());
info(fd, NULL); /* General system info */
- if (process_tab != NULL) /* XXX true at init */
+ if (erts_proc.tab)
process_info(fd, NULL); /* Info about each process and port */
db_info(fd, NULL, 0);
erts_print_bif_timer_info(fd, NULL);
diff --git a/erts/emulator/beam/code_ix.c b/erts/emulator/beam/code_ix.c
new file mode 100644
index 0000000000..8025058ee0
--- /dev/null
+++ b/erts/emulator/beam/code_ix.c
@@ -0,0 +1,166 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "code_ix.h"
+#include "global.h"
+#include "beam_catches.h"
+
+
+
+#if 0
+# define CIX_TRACE(text) erts_fprintf(stderr, "CIX_TRACE: " text " act=%u load=%u\r\n", erts_active_code_ix(), erts_staging_code_ix())
+#else
+# define CIX_TRACE(text)
+#endif
+
+erts_smp_atomic32_t the_active_code_index;
+erts_smp_atomic32_t the_staging_code_index;
+
+static int the_code_ix_lock = 0;
+struct code_ix_queue_item {
+ Process *p;
+ struct code_ix_queue_item* next;
+};
+static struct code_ix_queue_item* the_code_ix_queue = NULL;
+static erts_smp_mtx_t the_code_ix_queue_lock;
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+static erts_tsd_key_t has_code_write_permission;
+#endif
+
+void erts_code_ix_init(void)
+{
+ /* We start emulator by initializing preloaded modules
+ * single threaded with active and staging set both to zero.
+ * Preloading is finished by a commit that will set things straight.
+ */
+ erts_smp_atomic32_init_nob(&the_active_code_index, 0);
+ erts_smp_atomic32_init_nob(&the_staging_code_index, 0);
+ erts_smp_mtx_init(&the_code_ix_queue_lock, "code_ix_queue");
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_tsd_key_create(&has_code_write_permission);
+#endif
+ CIX_TRACE("init");
+}
+
+void erts_start_staging_code_ix(void)
+{
+ beam_catches_start_staging();
+ export_start_staging();
+ module_start_staging();
+ erts_start_staging_ranges();
+ CIX_TRACE("start");
+}
+
+
+void erts_end_staging_code_ix(void)
+{
+ beam_catches_end_staging(1);
+ export_end_staging(1);
+ module_end_staging(1);
+ erts_end_staging_ranges(1);
+ CIX_TRACE("end");
+}
+
+void erts_commit_staging_code_ix(void)
+{
+ ErtsCodeIndex ix;
+ /* We need to this lock as we are now making the staging export table active */
+ export_staging_lock();
+ ix = erts_staging_code_ix();
+ erts_smp_atomic32_set_nob(&the_active_code_index, ix);
+ ix = (ix + 1) % ERTS_NUM_CODE_IX;
+ erts_smp_atomic32_set_nob(&the_staging_code_index, ix);
+ export_staging_unlock();
+ CIX_TRACE("activate");
+}
+
+void erts_abort_staging_code_ix(void)
+{
+ beam_catches_end_staging(0);
+ export_end_staging(0);
+ module_end_staging(0);
+ erts_end_staging_ranges(0);
+ CIX_TRACE("abort");
+}
+
+
+/*
+ * Calller _must_ yield if we return 0
+ */
+int erts_try_seize_code_write_permission(Process* c_p)
+{
+ int success;
+#ifdef ERTS_SMP
+ ASSERT(!erts_smp_thr_progress_is_blocking()); /* to avoid deadlock */
+#endif
+
+ erts_smp_mtx_lock(&the_code_ix_queue_lock);
+ success = !the_code_ix_lock;
+ if (success) {
+ the_code_ix_lock = 1;
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_tsd_set(has_code_write_permission, (void *) 1);
+#endif
+ }
+ else { /* Already locked */
+ struct code_ix_queue_item* qitem;
+ qitem = erts_alloc(ERTS_ALC_T_CODE_IX_LOCK_Q, sizeof(*qitem));
+ qitem->p = c_p;
+ erts_smp_proc_inc_refc(c_p);
+ qitem->next = the_code_ix_queue;
+ the_code_ix_queue = qitem;
+ erts_suspend(c_p, ERTS_PROC_LOCK_MAIN, NULL);
+ }
+ erts_smp_mtx_unlock(&the_code_ix_queue_lock);
+ return success;
+}
+
+void erts_release_code_write_permission(void)
+{
+ ERTS_SMP_LC_ASSERT(erts_is_code_ix_locked());
+ erts_smp_mtx_lock(&the_code_ix_queue_lock);
+ while (the_code_ix_queue != NULL) { /* unleash the entire herd */
+ struct code_ix_queue_item* qitem = the_code_ix_queue;
+ erts_smp_proc_lock(qitem->p, ERTS_PROC_LOCK_STATUS);
+ if (!ERTS_PROC_IS_EXITING(qitem->p)) {
+ erts_resume(qitem->p, ERTS_PROC_LOCK_STATUS);
+ }
+ erts_smp_proc_unlock(qitem->p, ERTS_PROC_LOCK_STATUS);
+ the_code_ix_queue = qitem->next;
+ erts_smp_proc_dec_refc(qitem->p);
+ erts_free(ERTS_ALC_T_CODE_IX_LOCK_Q, qitem);
+ }
+ the_code_ix_lock = 0;
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_tsd_set(has_code_write_permission, (void *) 0);
+#endif
+ erts_smp_mtx_unlock(&the_code_ix_queue_lock);
+}
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+int erts_is_code_ix_locked(void)
+{
+ return the_code_ix_lock && erts_tsd_get(has_code_write_permission);
+}
+#endif
diff --git a/erts/emulator/beam/code_ix.h b/erts/emulator/beam/code_ix.h
new file mode 100644
index 0000000000..6b2680044e
--- /dev/null
+++ b/erts/emulator/beam/code_ix.h
@@ -0,0 +1,141 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2012. All Rights Reserved.
+ *
+ * The contents of this file are subject to the Erlang Public License,
+ * Version 1.1, (the "License"); you may not use this file except in
+ * compliance with the License. You should have received a copy of the
+ * Erlang Public License along with this software. If not, it can be
+ * retrieved online at http://www.erlang.org/.
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * %CopyrightEnd%
+ */
+
+/* Description:
+ * This is the interface that facilitate changing the beam code
+ * (load,upgrade,delete) while allowing executing Erlang processes to
+ * access the code without any locks or other expensive memory barriers.
+ *
+ * The basic idea is to maintain several "logical copies" of the code. These
+ * copies are identified by a global 'code index', an integer of 0, 1 or 2.
+ * The code index is used as argument to code access structures like
+ * export, module, beam_catches, beam_ranges.
+ *
+ * The current 'active' code index is used to access the current running
+ * code. The 'staging' code index is used by the process that performs
+ * a code change operation. When a code change operation completes
+ * succesfully, the staging code index becomes the new active code index.
+ *
+ * The third code index is not explicitly used. It can be thought of as
+ * the "previous active" or the "next staging" index. It is needed to make
+ * sure that we do not reuse a code index for staging until we are sure
+ * that no executing BIFs are still referring it.
+ * We could get by with only two (0 and 1), but that would require that we
+ * must wait for all schedulers to re-schedule before each code change
+ * operation can start staging.
+ *
+ * Note that the 'code index' is very loosely coupled to the concept of
+ * 'current' and 'old' module versions. You can almost say that they are
+ * orthogonal to each other. Code index is an emulator global concept while
+ * 'current' and 'old' is specific for each module.
+ */
+
+#ifndef __CODE_IX_H__
+#define __CODE_IX_H__
+
+#ifndef __SYS_H__
+# ifdef HAVE_CONFIG_H
+# include "config.h"
+# endif
+# include "sys.h"
+#endif
+struct process;
+
+
+#define ERTS_NUM_CODE_IX 3
+typedef unsigned ErtsCodeIndex;
+
+
+/* Called once at emulator initialization.
+ */
+void erts_code_ix_init(void);
+
+/* Return active code index.
+ * Is guaranteed to be valid until the calling BIF returns.
+ * To get a consistent view of the code, only one call to erts_active_code_ix()
+ * should be made and the returned ix reused within the same BIF call.
+ */
+ERTS_GLB_INLINE
+ErtsCodeIndex erts_active_code_ix(void);
+
+/* Return staging code ix.
+ * Only used by a process performing code loading/upgrading/deleting/purging.
+ * code_ix must be locked.
+ */
+ERTS_GLB_INLINE
+ErtsCodeIndex erts_staging_code_ix(void);
+
+/* Try seize exclusive code write permission. Needed for code staging.
+ * Main process lock (only) must be held.
+ * System thread progress must not be blocked.
+ * Caller is suspended and *must* yield if 0 is returned.
+ */
+int erts_try_seize_code_write_permission(struct process*);
+
+/* Release code write permission.
+ * Will resume any suspended waiters.
+ */
+void erts_release_code_write_permission(void);
+
+/* Prepare the "staging area" to be a complete copy of the active code.
+ * Code write permission must have been seized.
+ * Must be followed by calls to either "end" and "commit" or "abort" before
+ * code write permission can be released.
+ */
+void erts_start_staging_code_ix(void);
+
+/* End the staging.
+ * Preceded by "start" and must be followed by "commit".
+ */
+void erts_end_staging_code_ix(void);
+
+/* Set staging code index as new active code index.
+ * Preceded by "end".
+ */
+void erts_commit_staging_code_ix(void);
+
+/* Abort the staging.
+ * Preceded by "start".
+ */
+void erts_abort_staging_code_ix(void);
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+int erts_is_code_ix_locked(void);
+#endif
+
+
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+extern erts_smp_atomic32_t the_active_code_index;
+extern erts_smp_atomic32_t the_staging_code_index;
+
+ERTS_GLB_INLINE ErtsCodeIndex erts_active_code_ix(void)
+{
+ return erts_smp_atomic32_read_nob(&the_active_code_index);
+}
+ERTS_GLB_INLINE ErtsCodeIndex erts_staging_code_ix(void)
+{
+ return erts_smp_atomic32_read_nob(&the_staging_code_index);
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+#endif /* !__CODE_IX_H__ */
+
diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c
index 01fd63d5d9..5db68f6d45 100644
--- a/erts/emulator/beam/dist.c
+++ b/erts/emulator/beam/dist.c
@@ -1312,7 +1312,7 @@ int erts_net_message(Port *prt,
if (is_not_pid(from) || is_not_atom(to)){
goto invalid_message;
}
- rp = erts_whereis_process(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_whereis_process(NULL, 0, to, 0, 0);
if (rp) {
Uint xsize = (type == DOP_REG_SEND
? 0
@@ -1338,7 +1338,6 @@ int erts_net_message(Port *prt,
erts_queue_dist_message(rp, &locks, ede_copy, token);
if (locks)
erts_smp_proc_unlock(rp, locks);
- erts_smp_proc_dec_refc(rp);
}
break;
@@ -1364,7 +1363,7 @@ int erts_net_message(Port *prt,
if (is_not_pid(to)) {
goto invalid_message;
}
- rp = erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_proc_lookup(to);
if (rp) {
Uint xsize = type == DOP_SEND ? 0 : ERTS_HEAP_FRAG_SIZE(token_size);
ErtsProcLocks locks = 0;
@@ -1388,7 +1387,6 @@ int erts_net_message(Port *prt,
erts_queue_dist_message(rp, &locks, ede_copy, token);
if (locks)
erts_smp_proc_unlock(rp, locks);
- erts_smp_proc_dec_refc(rp);
}
break;
@@ -1544,8 +1542,7 @@ int erts_net_message(Port *prt,
if (is_not_pid(from) || is_not_internal_pid(to)) {
goto invalid_message;
}
- rp = erts_pid2proc_opt(NULL, 0, to, rp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_pid2proc(NULL, 0, to, rp_locks);
if (rp) {
(void) erts_send_exit_signal(NULL,
from,
@@ -1556,7 +1553,6 @@ int erts_net_message(Port *prt,
NULL,
0);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
}
break;
}
@@ -1973,6 +1969,7 @@ erts_dist_command(Port *prt, int reds_limit)
bw(foq.first->extp, size);
#endif
reds += ERTS_PORT_REDS_DIST_CMD_DATA(size);
+ erts_smp_atomic_add_nob(&erts_bytes_out, size);
fob = foq.first;
obufsize += size_obuf(fob);
foq.first = foq.first->next;
@@ -2056,6 +2053,7 @@ erts_dist_command(Port *prt, int reds_limit)
bw(oq.first->extp, size);
#endif
reds += ERTS_PORT_REDS_DIST_CMD_DATA(size);
+ erts_smp_atomic_add_nob(&erts_bytes_out, size);
fob = oq.first;
obufsize += size_obuf(fob);
oq.first = oq.first->next;
@@ -2242,7 +2240,7 @@ static void doit_print_monitor_info(ErtsMonitor *mon, void *vptdp)
void *arg = ((struct print_to_data *) vptdp)->arg;
Process *rp;
ErtsMonitor *rmon;
- rp = erts_pid2proc_unlocked(mon->pid);
+ rp = erts_proc_lookup(mon->pid);
if (!rp || (rmon = erts_lookup_monitor(rp->monitors, mon->ref)) == NULL) {
erts_print(to, arg, "Warning, stray monitor for: %T\n", mon->pid);
} else if (mon->type == MON_ORIGIN) {
@@ -2281,7 +2279,7 @@ static void doit_print_link_info2(ErtsLink *lnk, void *vpplc)
static void doit_print_link_info(ErtsLink *lnk, void *vptdp)
{
- if (is_internal_pid(lnk->pid) && erts_pid2proc_unlocked(lnk->pid)) {
+ if (is_internal_pid(lnk->pid) && erts_proc_lookup(lnk->pid)) {
PrintLinkContext plc = {(struct print_to_data *) vptdp, lnk->pid};
erts_doforall_links(ERTS_LINK_ROOT(lnk), &doit_print_link_info2, &plc);
}
@@ -2303,7 +2301,7 @@ static void doit_print_nodelink_info(ErtsLink *lnk, void *vpcontext)
{
PrintNodeLinkContext *pcontext = vpcontext;
- if (is_internal_pid(lnk->pid) && erts_pid2proc_unlocked(lnk->pid))
+ if (is_internal_pid(lnk->pid) && erts_proc_lookup(lnk->pid))
erts_print(pcontext->ptd.to, pcontext->ptd.arg,
"Remote monitoring: %T %T\n", lnk->pid, pcontext->sysname);
}
@@ -2451,15 +2449,15 @@ BIF_RETTYPE setnode_2(BIF_ALIST_2)
goto error;
/* Check that all trap functions are defined !! */
- if (dsend2_trap->address == NULL ||
- dsend3_trap->address == NULL ||
+ if (dsend2_trap->addressv[0] == NULL ||
+ dsend3_trap->addressv[0] == NULL ||
/* dsend_nosuspend_trap->address == NULL ||*/
- dlink_trap->address == NULL ||
- dunlink_trap->address == NULL ||
- dmonitor_node_trap->address == NULL ||
- dgroup_leader_trap->address == NULL ||
- dmonitor_p_trap->address == NULL ||
- dexit_trap->address == NULL) {
+ dlink_trap->addressv[0] == NULL ||
+ dunlink_trap->addressv[0] == NULL ||
+ dmonitor_node_trap->addressv[0] == NULL ||
+ dgroup_leader_trap->addressv[0] == NULL ||
+ dmonitor_p_trap->addressv[0] == NULL ||
+ dexit_trap->addressv[0] == NULL) {
goto error;
}
@@ -2706,9 +2704,8 @@ BIF_RETTYPE dist_exit_3(BIF_ALIST_3)
}
else {
lp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- lp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN,
- local, lp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
+ lp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
+ local, lp_locks);
if (!lp) {
BIF_RET(am_true); /* ignore */
}
@@ -2727,9 +2724,7 @@ BIF_RETTYPE dist_exit_3(BIF_ALIST_3)
lp_locks &= ~ERTS_PROC_LOCK_MAIN;
#endif
erts_smp_proc_unlock(lp, lp_locks);
- if (lp != BIF_P)
- erts_smp_proc_dec_refc(lp);
- else {
+ if (lp == BIF_P) {
/*
* We may have exited current process and may have to take action.
*/
diff --git a/erts/emulator/beam/erl_alloc.c b/erts/emulator/beam/erl_alloc.c
index 6fce032f9d..918a800555 100644
--- a/erts/emulator/beam/erl_alloc.c
+++ b/erts/emulator/beam/erl_alloc.c
@@ -2182,9 +2182,9 @@ erts_memory(int *print_to_p, void *print_to_arg, void *proc, Eterm earg)
if (want.code) {
size.code = module_table_sz();
size.code += export_table_sz();
- size.code += export_list_size() * sizeof(Export);
+ size.code += export_entries_sz();
size.code += erts_fun_table_sz();
- size.code += allocated_modules*sizeof(Range);
+ size.code += erts_ranges_sz();
size.code += erts_total_code_size;
}
@@ -2332,7 +2332,7 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc)
values[i].arity = 2;
values[i].name = "export_list";
- values[i].ui[0] = export_list_size() * sizeof(Export);
+ values[i].ui[0] = export_entries_sz();
i++;
values[i].arity = 2;
@@ -2347,7 +2347,7 @@ erts_allocated_areas(int *print_to_p, void *print_to_arg, void *proc)
values[i].arity = 2;
values[i].name = "module_refs";
- values[i].ui[0] = allocated_modules*sizeof(Range);
+ values[i].ui[0] = erts_ranges_sz();
i++;
values[i].arity = 2;
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index d4ef9cc553..134de6dfa6 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -164,6 +164,7 @@ type MSG_REF FIXED_SIZE PROCESSES msg_ref
type MSG_ROOTS TEMPORARY PROCESSES msg_roots
type ROOTSET TEMPORARY PROCESSES root_set
type LOADER_TMP TEMPORARY CODE loader_tmp
+type PREPARED_CODE SHORT_LIVED CODE prepared_code
type BIF_TIMER_TABLE LONG_LIVED SYSTEM bif_timer_table
type SL_BIF_TIMER SHORT_LIVED PROCESSES bif_timer_sl
type LL_BIF_TIMER STANDARD PROCESSES bif_timer_ll
@@ -263,6 +264,8 @@ type ZLIB STANDARD SYSTEM zlib
type CPU_GRPS_MAP LONG_LIVED SYSTEM cpu_groups_map
type AUX_WORK_TMO LONG_LIVED SYSTEM aux_work_timeouts
type MISC_AUX_WORK_Q LONG_LIVED SYSTEM misc_aux_work_q
+type CODE_IX_LOCK_Q SHORT_LIVED SYSTEM code_ix_lock_q
+type PROC_INTERVAL LONG_LIVED SYSTEM process_interval
+if threads_no_smp
# Need thread safe allocs, but std_alloc and fix_alloc are not;
@@ -322,6 +325,8 @@ type SL_PTIMER SHORT_LIVED SYSTEM ptimer_sl
type LL_PTIMER STANDARD SYSTEM ptimer_ll
type SYS_MSG_Q SHORT_LIVED PROCESSES system_messages_queue
type FP_EXCEPTION LONG_LIVED SYSTEM fp_exception
+type LL_MPATHS LONG_LIVED SYSTEM ll_migration_paths
+type SL_MPATHS SHORT_LIVED SYSTEM sl_migration_paths
+endif
+if hipe
diff --git a/erts/emulator/beam/erl_alloc_util.c b/erts/emulator/beam/erl_alloc_util.c
index a0abd1c405..9a011e2adc 100644
--- a/erts/emulator/beam/erl_alloc_util.c
+++ b/erts/emulator/beam/erl_alloc_util.c
@@ -832,14 +832,14 @@ init_dd_queue(ErtsAllctrDDQueue_t *ddq)
static ERTS_INLINE erts_aint_t
ddq_managed_thread_enqueue(ErtsAllctrDDQueue_t *ddq, void *ptr)
{
- erts_aint_t ilast, itmp;
+ erts_aint_t first_ilast, ilast, itmp;
ErtsAllctrDDBlock_t *this = ptr;
erts_atomic_init_nob(&this->atmc_next, ERTS_AINT_NULL);
/* Enqueue at end of list... */
- ilast = erts_atomic_read_nob(&ddq->tail.data.last);
+ first_ilast = ilast = erts_atomic_read_nob(&ddq->tail.data.last);
while (1) {
ErtsAllctrDDBlock_t *last = (ErtsAllctrDDBlock_t *) ilast;
itmp = erts_atomic_cmpxchg_mb(&last->atmc_next,
@@ -853,8 +853,11 @@ ddq_managed_thread_enqueue(ErtsAllctrDDQueue_t *ddq, void *ptr)
/* Move last pointer forward... */
while (1) {
if (erts_atomic_read_rb(&this->atmc_next) != ERTS_AINT_NULL) {
- /* Someone else will move it forward */
- return erts_atomic_read_rb(&ddq->tail.data.last);
+ ilast = erts_atomic_read_rb(&ddq->tail.data.last);
+ if (first_ilast != ilast) {
+ /* Someone else will move it forward */
+ return ilast;
+ }
}
itmp = erts_atomic_cmpxchg_mb(&ddq->tail.data.last,
(erts_aint_t) this,
diff --git a/erts/emulator/beam/erl_bif_binary.c b/erts/emulator/beam/erl_bif_binary.c
index cc4f2be8eb..474151d454 100644
--- a/erts/emulator/beam/erl_bif_binary.c
+++ b/erts/emulator/beam/erl_bif_binary.c
@@ -72,52 +72,29 @@ binary_matches(Process *p, Eterm arg1, Eterm arg2, Eterm arg3);
void erts_init_bif_binary(void)
{
- sys_memset((void *) &binary_match_trap_export, 0, sizeof(Export));
- binary_match_trap_export.address = &binary_match_trap_export.code[3];
- binary_match_trap_export.code[0] = am_erlang;
- binary_match_trap_export.code[1] = am_binary_match_trap;
- binary_match_trap_export.code[2] = 3;
- binary_match_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_match_trap_export.code[4] = (BeamInstr) &binary_match_trap;
-
- sys_memset((void *) &binary_matches_trap_export, 0, sizeof(Export));
- binary_matches_trap_export.address = &binary_matches_trap_export.code[3];
- binary_matches_trap_export.code[0] = am_erlang;
- binary_matches_trap_export.code[1] = am_binary_matches_trap;
- binary_matches_trap_export.code[2] = 3;
- binary_matches_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_matches_trap_export.code[4] = (BeamInstr) &binary_matches_trap;
-
- sys_memset((void *) &binary_longest_prefix_trap_export, 0, sizeof(Export));
- binary_longest_prefix_trap_export.address = &binary_longest_prefix_trap_export.code[3];
- binary_longest_prefix_trap_export.code[0] = am_erlang;
- binary_longest_prefix_trap_export.code[1] = am_binary_longest_prefix_trap;
- binary_longest_prefix_trap_export.code[2] = 3;
- binary_longest_prefix_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_longest_prefix_trap_export.code[4] = (BeamInstr) &binary_longest_prefix_trap;
-
- sys_memset((void *) &binary_longest_suffix_trap_export, 0, sizeof(Export));
- binary_longest_suffix_trap_export.address = &binary_longest_suffix_trap_export.code[3];
- binary_longest_suffix_trap_export.code[0] = am_erlang;
- binary_longest_suffix_trap_export.code[1] = am_binary_longest_suffix_trap;
- binary_longest_suffix_trap_export.code[2] = 3;
- binary_longest_suffix_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_longest_suffix_trap_export.code[4] = (BeamInstr) &binary_longest_suffix_trap;
-
- sys_memset((void *) &binary_bin_to_list_trap_export, 0, sizeof(Export));
- binary_bin_to_list_trap_export.address = &binary_bin_to_list_trap_export.code[3];
- binary_bin_to_list_trap_export.code[0] = am_erlang;
- binary_bin_to_list_trap_export.code[1] = am_binary_bin_to_list_trap;
- binary_bin_to_list_trap_export.code[2] = 3;
- binary_bin_to_list_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_bin_to_list_trap_export.code[4] = (BeamInstr) &binary_bin_to_list_trap;
- sys_memset((void *) &binary_copy_trap_export, 0, sizeof(Export));
- binary_copy_trap_export.address = &binary_copy_trap_export.code[3];
- binary_copy_trap_export.code[0] = am_erlang;
- binary_copy_trap_export.code[1] = am_binary_copy_trap;
- binary_copy_trap_export.code[2] = 2;
- binary_copy_trap_export.code[3] = (BeamInstr) em_apply_bif;
- binary_copy_trap_export.code[4] = (BeamInstr) &binary_copy_trap;
+ erts_init_trap_export(&binary_match_trap_export,
+ am_erlang, am_binary_match_trap, 3,
+ &binary_match_trap);
+
+ erts_init_trap_export(&binary_matches_trap_export,
+ am_erlang, am_binary_matches_trap, 3,
+ &binary_matches_trap);
+
+ erts_init_trap_export(&binary_longest_prefix_trap_export,
+ am_erlang, am_binary_longest_prefix_trap, 3,
+ &binary_longest_prefix_trap);
+
+ erts_init_trap_export(&binary_longest_suffix_trap_export,
+ am_erlang, am_binary_longest_suffix_trap, 3,
+ &binary_longest_suffix_trap);
+
+ erts_init_trap_export(&binary_bin_to_list_trap_export,
+ am_erlang, am_binary_bin_to_list_trap, 3,
+ &binary_bin_to_list_trap);
+
+ erts_init_trap_export(&binary_copy_trap_export,
+ am_erlang, am_binary_copy_trap, 2,
+ &binary_copy_trap);
max_loop_limit = 0;
return;
diff --git a/erts/emulator/beam/erl_bif_chksum.c b/erts/emulator/beam/erl_bif_chksum.c
index 06b7ffdf32..ff5ce3cc7a 100644
--- a/erts/emulator/beam/erl_bif_chksum.c
+++ b/erts/emulator/beam/erl_bif_chksum.c
@@ -42,16 +42,9 @@ static Export chksum_md5_2_exp;
void erts_init_bif_chksum(void)
{
/* Non visual BIF to trap to. */
- memset(&chksum_md5_2_exp, 0, sizeof(Export));
- chksum_md5_2_exp.address =
- &chksum_md5_2_exp.code[3];
- chksum_md5_2_exp.code[0] = am_erlang;
- chksum_md5_2_exp.code[1] = am_atom_put("md5_trap",8);
- chksum_md5_2_exp.code[2] = 2;
- chksum_md5_2_exp.code[3] =
- (BeamInstr) em_apply_bif;
- chksum_md5_2_exp.code[4] =
- (BeamInstr) &md5_2;
+ erts_init_trap_export(&chksum_md5_2_exp,
+ am_erlang, am_atom_put("md5_trap",8), 2,
+ &md5_2);
}
diff --git a/erts/emulator/beam/erl_bif_ddll.c b/erts/emulator/beam/erl_bif_ddll.c
index c338ee1c4b..7f7c975e78 100644
--- a/erts/emulator/beam/erl_bif_ddll.c
+++ b/erts/emulator/beam/erl_bif_ddll.c
@@ -368,13 +368,11 @@ BIF_RETTYPE erl_ddll_try_load_3(BIF_ALIST_3)
#endif
for (j = 0; j < erts_max_ports; j++) {
Port* prt = &erts_port[j];
-#ifdef DDLL_SMP
erts_smp_port_state_lock(prt);
-#endif
if (!(prt->status & FREE_PORT_FLAGS) &&
prt->drv_ptr->handle == dh) {
-#if DDLL_SMP
erts_smp_atomic_inc_nob(&prt->refc);
+#if DDLL_SMP
/* Extremely rare spinlock */
while(prt->status & ERTS_PORT_SFLG_INITIALIZING) {
erts_smp_port_state_unlock(prt);
@@ -598,13 +596,11 @@ done:
#endif
for (j = 0; j < erts_max_ports; j++) {
Port* prt = &erts_port[j];
-#if DDLL_SMP
erts_smp_port_state_lock(prt);
-#endif
if (!(prt->status & FREE_PORT_FLAGS)
&& prt->drv_ptr->handle == dh) {
-#if DDLL_SMP
erts_smp_atomic_inc_nob(&prt->refc);
+#if DDLL_SMP
/* Extremely rare spinlock */
while(prt->status & ERTS_PORT_SFLG_INITIALIZING) {
erts_smp_port_state_unlock(prt);
@@ -1060,13 +1056,11 @@ void erts_ddll_proc_dead(Process *p, ErtsProcLocks plocks)
#endif
for (j = 0; j < erts_max_ports; j++) {
Port* prt = &erts_port[j];
-#if DDLL_SMP
erts_smp_port_state_lock(prt);
-#endif
if (!(prt->status & FREE_PORT_FLAGS) &&
prt->drv_ptr->handle == dh) {
-#if DDLL_SMP
erts_smp_atomic_inc_nob(&prt->refc);
+#if DDLL_SMP
while(prt->status & ERTS_PORT_SFLG_INITIALIZING) {
erts_smp_port_state_unlock(prt);
erts_smp_port_state_lock(prt);
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index f56b00287f..e2f7c8673f 100755
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -1338,13 +1338,15 @@ process_info_aux(Process *BIF_P,
hp = HAlloc(BIF_P, 3);
break;
- case am_trap_exit:
+ case am_trap_exit: {
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&rp->state);
hp = HAlloc(BIF_P, 3);
- if (rp->flags & F_TRAPEXIT)
+ if (state & ERTS_PSFLG_TRAP_EXIT)
res = am_true;
else
res = am_false;
break;
+ }
case am_error_handler:
hp = HAlloc(BIF_P, 3);
@@ -3098,15 +3100,13 @@ BIF_RETTYPE is_process_alive_1(BIF_ALIST_1)
if(internal_pid_index(BIF_ARG_1) >= erts_max_processes)
BIF_ERROR(BIF_P, BADARG);
- rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
- BIF_ARG_1, ERTS_PROC_LOCK_STATUS);
+ rp = erts_proc_lookup(BIF_ARG_1);
if (!rp) {
BIF_RET(am_false);
}
else {
- int have_pending_exit = ERTS_PROC_PENDING_EXIT(rp);
- erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS);
- if (have_pending_exit)
+ if (erts_smp_atomic32_read_acqb(&rp->state)
+ & (ERTS_PSFLG_PENDING_EXIT|ERTS_PSFLG_EXITING))
ERTS_BIF_AWAIT_X_DATA_TRAP(BIF_P, BIF_ARG_1, am_false);
else
BIF_RET(am_true);
@@ -3710,9 +3710,8 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
&& is_internal_pid(tp[2])) {
int xres;
ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- Process *rp = erts_pid2proc_opt(BIF_P, ERTS_PROC_LOCK_MAIN,
- tp[2], rp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
+ Process *rp = erts_pid2proc(BIF_P, ERTS_PROC_LOCK_MAIN,
+ tp[2], rp_locks);
if (!rp) {
DECL_AM(dead);
BIF_RET(AM_dead);
@@ -3738,7 +3737,6 @@ BIF_RETTYPE erts_debug_set_internal_state_2(BIF_ALIST_2)
rp_locks &= ~ERTS_PROC_LOCK_MAIN;
#endif
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
if (xres > 1) {
DECL_AM(message);
BIF_RET(AM_message);
@@ -3949,7 +3947,7 @@ static Eterm lcnt_build_lock_term(Eterm **hpp, Uint *szp, erts_lcnt_lock_t *lock
id = am_atom_put(ltype, strlen(ltype));
} else if (lock->flag & ERTS_LCNT_LT_PROCLOCK) {
/* use registered names as id's for process locks if available */
- proc = erts_pid2proc_unlocked(lock->id);
+ proc = erts_proc_lookup(lock->id);
if (proc && proc->reg) {
id = proc->reg->name;
} else {
diff --git a/erts/emulator/beam/erl_bif_re.c b/erts/emulator/beam/erl_bif_re.c
index 6b843d2e08..b036c5ef5c 100644
--- a/erts/emulator/beam/erl_bif_re.c
+++ b/erts/emulator/beam/erl_bif_re.c
@@ -71,14 +71,9 @@ void erts_init_bif_re(void)
erts_pcre_stack_free = &erts_erts_pcre_stack_free;
default_table = NULL; /* ISO8859-1 default, forced into pcre */
max_loop_limit = CONTEXT_REDS * LOOP_FACTOR;
-
- sys_memset((void *) &re_exec_trap_export, 0, sizeof(Export));
- re_exec_trap_export.address = &re_exec_trap_export.code[3];
- re_exec_trap_export.code[0] = am_erlang;
- re_exec_trap_export.code[1] = am_re_run_trap;
- re_exec_trap_export.code[2] = 3;
- re_exec_trap_export.code[3] = (BeamInstr) em_apply_bif;
- re_exec_trap_export.code[4] = (BeamInstr) &re_exec_trap;
+
+ erts_init_trap_export(&re_exec_trap_export, am_erlang, am_re_run_trap, 3,
+ &re_exec_trap);
grun_trap_exportp = erts_export_put(am_re,am_grun,3);
urun_trap_exportp = erts_export_put(am_re,am_urun,3);
diff --git a/erts/emulator/beam/erl_bif_timer.c b/erts/emulator/beam/erl_bif_timer.c
index d806be0704..525b11f61c 100644
--- a/erts/emulator/beam/erl_bif_timer.c
+++ b/erts/emulator/beam/erl_bif_timer.c
@@ -324,10 +324,9 @@ bif_timer_timeout(ErtsBifTimer* btm)
ASSERT(!erts_get_current_process());
if (btm->flags & BTM_FLG_BYNAME)
- rp = erts_whereis_process(NULL,0,btm->receiver.name,0,ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = erts_whereis_process(NULL, 0, btm->receiver.name, 0, 0);
else {
rp = btm->receiver.proc.ess;
- erts_smp_proc_inc_refc(rp);
unlink_proc(btm);
}
@@ -379,7 +378,6 @@ bif_timer_timeout(ErtsBifTimer* btm)
#endif
);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
}
}
diff --git a/erts/emulator/beam/erl_bif_trace.c b/erts/emulator/beam/erl_bif_trace.c
index 80f774523c..e88fb8c9f4 100644
--- a/erts/emulator/beam/erl_bif_trace.c
+++ b/erts/emulator/beam/erl_bif_trace.c
@@ -42,12 +42,24 @@
#define DECL_AM(S) Eterm AM_ ## S = am_atom_put(#S, sizeof(#S) - 1)
const struct trace_pattern_flags erts_trace_pattern_flags_off = {0, 0, 0, 0, 0};
+
+/*
+ * The following variables are protected by code write permission.
+ */
static int erts_default_trace_pattern_is_on;
static Binary *erts_default_match_spec;
static Binary *erts_default_meta_match_spec;
static struct trace_pattern_flags erts_default_trace_pattern_flags;
static Eterm erts_default_meta_tracer_pid;
+static struct { /* Protected by code write permission */
+ int current;
+ int install;
+ int local;
+ BpFunctions f; /* Local functions */
+ BpFunctions e; /* Export entries */
+} finish_bp;
+
static Eterm
trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist);
static BIF_RETTYPE
@@ -60,12 +72,11 @@ static Eterm trace_info_pid(Process* p, Eterm pid_spec, Eterm key);
static Eterm trace_info_func(Process* p, Eterm pid_spec, Eterm key);
static Eterm trace_info_on_load(Process* p, Eterm key);
-static int setup_func_trace(Export* ep, void* match_prog);
-static int reset_func_trace(Export* ep);
-static void reset_bif_trace(int bif_index);
-static void setup_bif_trace(int bif_index);
-static void set_trace_bif(int bif_index, void* match_prog);
-static void clear_trace_bif(int bif_index);
+static void reset_bif_trace(void);
+static void setup_bif_trace(void);
+static void install_exp_breakpoints(BpFunctions* f);
+static void uninstall_exp_breakpoints(BpFunctions* f);
+static void clean_export_entries(BpFunctions* f);
void
erts_bif_trace_init(void)
@@ -98,7 +109,7 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
{
DeclareTmpHeap(mfa,3,p); /* Not really heap here, but might be when setting pattern */
int i;
- int matches = 0;
+ int matches = -1;
int specified = 0;
enum erts_break_op on;
Binary* match_prog_set;
@@ -107,9 +118,12 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
int is_global;
Process *meta_tracer_proc = p;
Eterm meta_tracer_pid = p->id;
+ int is_blocking = 0;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
- erts_smp_thr_progress_block();
+ if (!erts_try_seize_code_write_permission(p)) {
+ ERTS_BIF_YIELD3(bif_export[BIF_trace_pattern_3], p, MFA, Pattern, flaglist);
+ }
+ finish_bp.current = -1;
UseTmpHeap(3,p);
/*
@@ -241,7 +255,6 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
erts_default_meta_match_spec = NULL;
erts_default_meta_tracer_pid = NIL;
}
- MatchSetUnref(match_prog_set);
if (erts_default_trace_pattern_flags.breakpoint &&
flags.breakpoint) {
/* Breakpoint trace -> breakpoint trace */
@@ -297,8 +310,7 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
erts_default_trace_pattern_is_on = !!flags.breakpoint;
}
}
-
- goto done;
+ matches = 0;
} else if (is_tuple(MFA)) {
Eterm *tp = tuple_val(MFA);
if (tp[0] != make_arityval(3)) {
@@ -322,35 +334,37 @@ trace_pattern(Process* p, Eterm MFA, Eterm Pattern, Eterm flaglist)
if (is_small(mfa[2])) {
mfa[2] = signed_val(mfa[2]);
}
- } else {
- goto error;
- }
- if (meta_tracer_proc) {
- meta_tracer_proc->trace_flags |= F_TRACER;
- }
+ if (meta_tracer_proc) {
+ meta_tracer_proc->trace_flags |= F_TRACER;
+ }
+ matches = erts_set_trace_pattern(p, mfa, specified,
+ match_prog_set, match_prog_set,
+ on, flags, meta_tracer_pid, 0);
+ }
- matches = erts_set_trace_pattern(mfa, specified,
- match_prog_set, match_prog_set,
- on, flags, meta_tracer_pid);
+ error:
MatchSetUnref(match_prog_set);
-
- done:
UnUseTmpHeap(3,p);
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
-
- return make_small(matches);
- error:
+#ifdef ERTS_SMP
+ if (finish_bp.current >= 0) {
+ ASSERT(matches >= 0);
+ erts_notify_finish_breakpointing(p);
+ erts_suspend(p, ERTS_PROC_LOCK_MAIN, NULL);
+ ERTS_BIF_YIELD_RETURN(p, make_small(matches));
+ }
+#endif
- MatchSetUnref(match_prog_set);
+ erts_release_code_write_permission();
- UnUseTmpHeap(3,p);
- erts_smp_thr_progress_unblock();
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
- BIF_ERROR(p, BADARG);
+ if (matches >= 0) {
+ return make_small(matches);
+ }
+ else {
+ BIF_ERROR(p, BADARG);
+ }
}
void
@@ -360,6 +374,8 @@ erts_get_default_trace_pattern(int *trace_pattern_is_on,
struct trace_pattern_flags *trace_pattern_flags,
Eterm *meta_tracer_pid)
{
+ ERTS_SMP_LC_ASSERT(erts_is_code_ix_locked() ||
+ erts_smp_thr_progress_is_blocking());
if (trace_pattern_is_on)
*trace_pattern_is_on = erts_default_trace_pattern_is_on;
if (match_spec)
@@ -372,7 +388,12 @@ erts_get_default_trace_pattern(int *trace_pattern_is_on,
*meta_tracer_pid = erts_default_meta_tracer_pid;
}
-
+int erts_is_default_trace_enabled(void)
+{
+ ERTS_SMP_LC_ASSERT(erts_is_code_ix_locked() ||
+ erts_smp_thr_progress_is_blocking());
+ return erts_default_trace_pattern_is_on;
+}
Uint
erts_trace_flag2bit(Eterm flag)
@@ -466,6 +487,10 @@ Eterm trace_3(BIF_ALIST_3)
BIF_ERROR(p, BADARG);
}
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ ERTS_BIF_YIELD3(bif_export[BIF_trace_3], BIF_P, BIF_ARG_1, BIF_ARG_2, BIF_ARG_3);
+ }
+
if (is_nil(tracer) || is_internal_pid(tracer)) {
Process *tracer_proc = erts_pid2proc(p,
ERTS_PROC_LOCK_MAIN,
@@ -653,8 +678,7 @@ Eterm trace_3(BIF_ALIST_3)
if (procs || mods) {
/* tracing of processes */
for (i = 0; i < erts_max_processes; i++) {
- Process* tracee_p = process_tab[i];
-
+ Process* tracee_p = erts_pix2proc(i);
if (! tracee_p)
continue;
if (tracer != NIL) {
@@ -730,6 +754,7 @@ Eterm trace_3(BIF_ALIST_3)
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
}
#endif
+ erts_release_code_write_permission();
BIF_RET(make_small(matches));
@@ -745,6 +770,7 @@ Eterm trace_3(BIF_ALIST_3)
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
}
#endif
+ erts_release_code_write_permission();
BIF_ERROR(p, BADARG);
}
@@ -772,8 +798,7 @@ static int port_already_traced(Process *c_p, Port *tracee_port, Eterm tracer)
return 1;
}
else if(is_internal_pid(tracee_port->tracer_proc)) {
- Process *tracer_p = erts_pid2proc(c_p, ERTS_PROC_LOCK_MAIN,
- tracee_port->tracer_proc, 0);
+ Process *tracer_p = erts_proc_lookup(tracee_port->tracer_proc);
if (!tracer_p) {
/* Current trace process now invalid
* - discard it and approve the new. */
@@ -813,8 +838,7 @@ static int already_traced(Process *c_p, Process *tracee_p, Eterm tracer)
return 1;
}
else if(is_internal_pid(tracee_p->tracer_proc)) {
- Process *tracer_p = erts_pid2proc(c_p, ERTS_PROC_LOCK_MAIN,
- tracee_p->tracer_proc, 0);
+ Process *tracer_p = erts_proc_lookup(tracee_p->tracer_proc);
if (!tracer_p) {
/* Current trace process now invalid
* - discard it and approve the new. */
@@ -841,6 +865,11 @@ Eterm trace_info_2(BIF_ALIST_2)
Eterm What = BIF_ARG_1;
Eterm Key = BIF_ARG_2;
Eterm res;
+
+ if (!erts_try_seize_code_write_permission(p)) {
+ ERTS_BIF_YIELD2(bif_export[BIF_trace_info_2], p, What, Key);
+ }
+
if (What == am_on_load) {
res = trace_info_on_load(p, Key);
} else if (is_atom(What) || is_pid(What)) {
@@ -848,8 +877,10 @@ Eterm trace_info_2(BIF_ALIST_2)
} else if (is_tuple(What)) {
res = trace_info_func(p, What, Key);
} else {
+ erts_release_code_write_permission();
BIF_ERROR(p, BADARG);
}
+ erts_release_code_write_permission();
BIF_RET(res);
}
@@ -876,7 +907,7 @@ trace_info_pid(Process* p, Eterm pid_spec, Eterm key)
}
if (is_internal_pid(tracer)) {
- if (!erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, tracer, 0)) {
+ if (!erts_proc_lookup(tracer)) {
reset_tracer:
tracee->trace_flags &= ~TRACEE_FLAGS;
trace_flags = tracee->trace_flags;
@@ -977,64 +1008,54 @@ static int function_is_traced(Process *p,
Binary **ms, /* out */
Binary **ms_meta, /* out */
Eterm *tracer_pid_meta, /* out */
- Sint *count, /* out */
+ Uint *count, /* out */
Eterm *call_time) /* out */
{
Export e;
Export* ep;
- int i;
- BeamInstr *code;
+ BeamInstr* pc;
/* First look for an export entry */
e.code[0] = mfa[0];
e.code[1] = mfa[1];
e.code[2] = mfa[2];
if ((ep = export_get(&e)) != NULL) {
- if (ep->address == ep->code+3 &&
- ep->code[3] != (BeamInstr) em_call_error_handler) {
- if (ep->code[3] == (BeamInstr) em_call_traced_function) {
- *ms = ep->match_prog_set;
+ pc = ep->code+3;
+ if (ep->addressv[erts_active_code_ix()] == pc &&
+ *pc != (BeamInstr) em_call_error_handler) {
+
+ int r = 0;
+
+ ASSERT(*pc == (BeamInstr) em_apply_bif ||
+ *pc == (BeamInstr) BeamOp(op_i_generic_breakpoint));
+
+ if (erts_is_trace_break(pc, ms, 0)) {
return FUNC_TRACE_GLOBAL_TRACE;
}
- if (ep->code[3] == (BeamInstr) em_apply_bif) {
- for (i = 0; i < BIF_SIZE; ++i) {
- if (bif_export[i] == ep) {
- int r = 0;
-
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_GLOBAL) {
- *ms = ep->match_prog_set;
- return FUNC_TRACE_GLOBAL_TRACE;
- } else {
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_LOCAL) {
- r |= FUNC_TRACE_LOCAL_TRACE;
- *ms = ep->match_prog_set;
- }
- if (erts_is_mtrace_break(ep->code+3, ms_meta,
- tracer_pid_meta)) {
- r |= FUNC_TRACE_META_TRACE;
- }
- if (erts_is_time_break(p, ep->code+3, call_time)) {
- r |= FUNC_TRACE_TIME_TRACE;
- }
- }
- return r ? r : FUNC_TRACE_UNTRACED;
- }
- }
- erl_exit(1,"Impossible ghost bif encountered in trace_info.");
+
+ if (erts_is_trace_break(pc, ms, 1)) {
+ r |= FUNC_TRACE_LOCAL_TRACE;
+ }
+ if (erts_is_mtrace_break(pc, ms_meta, tracer_pid_meta)) {
+ r |= FUNC_TRACE_META_TRACE;
}
+ if (erts_is_time_break(p, pc, call_time)) {
+ r |= FUNC_TRACE_TIME_TRACE;
+ }
+ return r ? r : FUNC_TRACE_UNTRACED;
}
}
/* OK, now look for breakpoint tracing */
- if ((code = erts_find_local_func(mfa)) != NULL) {
+ if ((pc = erts_find_local_func(mfa)) != NULL) {
int r =
- (erts_is_trace_break(code, ms, NULL)
+ (erts_is_trace_break(pc, ms, 1)
? FUNC_TRACE_LOCAL_TRACE : 0)
- | (erts_is_mtrace_break(code, ms_meta, tracer_pid_meta)
+ | (erts_is_mtrace_break(pc, ms_meta, tracer_pid_meta)
? FUNC_TRACE_META_TRACE : 0)
- | (erts_is_count_break(code, count)
+ | (erts_is_count_break(pc, count)
? FUNC_TRACE_COUNT_TRACE : 0)
- | (erts_is_time_break(p, code, call_time)
+ | (erts_is_time_break(p, pc, call_time)
? FUNC_TRACE_TIME_TRACE : 0);
return r ? r : FUNC_TRACE_UNTRACED;
@@ -1049,7 +1070,7 @@ trace_info_func(Process* p, Eterm func_spec, Eterm key)
Eterm* hp;
DeclareTmpHeap(mfa,3,p); /* Not really heap here, but might be when setting pattern */
Binary *ms = NULL, *ms_meta = NULL;
- Sint count = 0;
+ Uint count = 0;
Eterm traced = am_false;
Eterm match_spec = am_false;
Eterm retval = am_false;
@@ -1137,9 +1158,7 @@ trace_info_func(Process* p, Eterm func_spec, Eterm key)
break;
case am_call_count:
if (r & FUNC_TRACE_COUNT_TRACE) {
- retval = count < 0 ?
- erts_make_integer(-count-1, p) :
- erts_make_integer(count, p);
+ retval = erts_make_integer(count, p);
}
break;
case am_call_time:
@@ -1328,38 +1347,46 @@ trace_info_on_load(Process* p, Eterm key)
#undef FUNC_TRACE_LOCAL_TRACE
int
-erts_set_trace_pattern(Eterm* mfa, int specified,
+erts_set_trace_pattern(Process*p, Eterm* mfa, int specified,
Binary* match_prog_set, Binary *meta_match_prog_set,
int on, struct trace_pattern_flags flags,
- Eterm meta_tracer_pid)
+ Eterm meta_tracer_pid, int is_blocking)
{
+ const ErtsCodeIndex code_ix = erts_active_code_ix();
int matches = 0;
int i;
+ int n;
+ BpFunction* fp;
/*
* First work on normal functions (not real BIFs).
*/
-
- for (i = 0; i < export_list_size(); i++) {
- Export* ep = export_list(i);
- int j;
-
- if (ExportIsBuiltIn(ep)) {
- continue;
- }
-
- for (j = 0; j < specified && mfa[j] == ep->code[j]; j++) {
- /* Empty loop body */
- }
- if (j == specified) {
- if (on) {
- if (! flags.breakpoint)
- matches += setup_func_trace(ep, match_prog_set);
- else
- reset_func_trace(ep);
- } else if (! flags.breakpoint) {
- matches += reset_func_trace(ep);
+ erts_bp_match_export(&finish_bp.e, mfa, specified);
+ fp = finish_bp.e.matching;
+ n = finish_bp.e.matched;
+
+ for (i = 0; i < n; i++) {
+ BeamInstr* pc = fp[i].pc;
+ Export* ep = (Export *)(((char *)(pc-3)) - offsetof(Export, code));
+
+ if (!on || flags.breakpoint) {
+ erts_clear_call_trace_bif(pc, 0);
+ if (pc[0] == (BeamInstr) BeamOp(op_i_generic_breakpoint)) {
+ pc[0] = (BeamInstr) BeamOp(op_jump_f);
+ }
+ } else {
+ if (ep->addressv[code_ix] != pc) {
+ fp[i].mod->curr.num_traced_exports++;
+#ifdef DEBUG
+ pc[-5] = (BeamInstr) BeamOp(op_i_func_info_IaaI);
+#endif
+ pc[0] = (BeamInstr) BeamOp(op_jump_f);
+ pc[1] = (BeamInstr) ep->addressv[code_ix];
+ }
+ erts_set_call_trace_bif(pc, match_prog_set, 0);
+ if (ep->addressv[code_ix] != pc) {
+ pc[0] = (BeamInstr) BeamOp(op_i_generic_breakpoint);
}
}
}
@@ -1384,26 +1411,15 @@ erts_set_trace_pattern(Eterm* mfa, int specified,
/* Empty loop body */
}
if (j == specified) {
+ BeamInstr* pc = (BeamInstr *)bif_export[i]->code + 3;
+
if (! flags.breakpoint) { /* Export entry call trace */
if (on) {
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_META) {
- ASSERT(ExportIsBuiltIn(bif_export[i]));
- erts_clear_mtrace_bif
- ((BeamInstr *)bif_export[i]->code + 3);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_META;
- }
- set_trace_bif(i, match_prog_set);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_LOCAL;
- erts_bif_trace_flags[i] |= BIF_TRACE_AS_GLOBAL;
- setup_bif_trace(i);
+ erts_clear_call_trace_bif(pc, 1);
+ erts_clear_mtrace_bif(pc);
+ erts_set_call_trace_bif(pc, match_prog_set, 0);
} else { /* off */
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_GLOBAL) {
- clear_trace_bif(i);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_GLOBAL;
- }
- if (! erts_bif_trace_flags[i]) {
- reset_bif_trace(i);
- }
+ erts_clear_call_trace_bif(pc, 0);
}
matches++;
} else { /* Breakpoint call trace */
@@ -1411,52 +1427,33 @@ erts_set_trace_pattern(Eterm* mfa, int specified,
if (on) {
if (flags.local) {
- set_trace_bif(i, match_prog_set);
- erts_bif_trace_flags[i] |= BIF_TRACE_AS_LOCAL;
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_GLOBAL;
+ erts_clear_call_trace_bif(pc, 0);
+ erts_set_call_trace_bif(pc, match_prog_set, 1);
m = 1;
}
if (flags.meta) {
- erts_set_mtrace_bif
- ((BeamInstr *)bif_export[i]->code + 3,
- meta_match_prog_set, meta_tracer_pid);
- erts_bif_trace_flags[i] |= BIF_TRACE_AS_META;
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_GLOBAL;
+ erts_set_mtrace_bif(pc, meta_match_prog_set,
+ meta_tracer_pid);
m = 1;
}
if (flags.call_time) {
- erts_set_time_trace_bif(bif_export[i]->code + 3, on);
+ erts_set_time_trace_bif(pc, on);
/* I don't want to remove any other tracers */
- erts_bif_trace_flags[i] |= BIF_TRACE_AS_CALL_TIME;
m = 1;
}
- if (erts_bif_trace_flags[i]) {
- setup_bif_trace(i);
- }
} else { /* off */
if (flags.local) {
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_LOCAL) {
- clear_trace_bif(i);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_LOCAL;
- }
+ erts_clear_call_trace_bif(pc, 1);
m = 1;
}
if (flags.meta) {
- if (erts_bif_trace_flags[i] & BIF_TRACE_AS_META) {
- erts_clear_mtrace_bif
- ((BeamInstr *)bif_export[i]->code + 3);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_META;
- }
+ erts_clear_mtrace_bif(pc);
m = 1;
}
if (flags.call_time) {
- erts_clear_time_trace_bif(bif_export[i]->code + 3);
- erts_bif_trace_flags[i] &= ~BIF_TRACE_AS_CALL_TIME;
+ erts_clear_time_trace_bif(pc);
m = 1;
}
- if (! erts_bif_trace_flags[i]) {
- reset_bif_trace(i);
- }
}
matches += m;
}
@@ -1466,176 +1463,242 @@ erts_set_trace_pattern(Eterm* mfa, int specified,
/*
** So, now for breakpoint tracing
*/
+ erts_bp_match_functions(&finish_bp.f, mfa, specified);
if (on) {
if (! flags.breakpoint) {
- erts_clear_trace_break(mfa, specified);
- erts_clear_mtrace_break(mfa, specified);
- erts_clear_count_break(mfa, specified);
- erts_clear_time_break(mfa, specified);
+ erts_clear_all_breaks(&finish_bp.f);
} else {
- int m = 0;
if (flags.local) {
- m = erts_set_trace_break(mfa, specified, match_prog_set,
- am_true);
+ erts_set_trace_break(&finish_bp.f, match_prog_set);
}
if (flags.meta) {
- m = erts_set_mtrace_break(mfa, specified, meta_match_prog_set,
- meta_tracer_pid);
+ erts_set_mtrace_break(&finish_bp.f, meta_match_prog_set,
+ meta_tracer_pid);
}
if (flags.call_count) {
- m = erts_set_count_break(mfa, specified, on);
+ erts_set_count_break(&finish_bp.f, on);
}
if (flags.call_time) {
- m = erts_set_time_break(mfa, specified, on);
+ erts_set_time_break(&finish_bp.f, on);
}
- /* All assignments to 'm' above should give the same value,
- * so just use the last */
- matches += m;
}
} else {
- int m = 0;
if (flags.local) {
- m = erts_clear_trace_break(mfa, specified);
+ erts_clear_trace_break(&finish_bp.f);
}
if (flags.meta) {
- m = erts_clear_mtrace_break(mfa, specified);
+ erts_clear_mtrace_break(&finish_bp.f);
}
if (flags.call_count) {
- m = erts_clear_count_break(mfa, specified);
+ erts_clear_count_break(&finish_bp.f);
}
if (flags.call_time) {
- m = erts_clear_time_break(mfa, specified);
+ erts_clear_time_break(&finish_bp.f);
+ }
+ }
+
+ finish_bp.current = 0;
+ finish_bp.install = on;
+ finish_bp.local = flags.breakpoint;
+
+#ifdef ERTS_SMP
+ if (is_blocking) {
+ ERTS_SMP_LC_ASSERT(erts_smp_thr_progress_is_blocking());
+#endif
+ while (erts_finish_breakpointing()) {
+ /* Empty loop body */
}
- /* All assignments to 'm' above should give the same value,
- * so just use the last */
- matches += m;
+#ifdef ERTS_SMP
+ finish_bp.current = -1;
}
+#endif
+ if (flags.breakpoint) {
+ matches += finish_bp.f.matched;
+ } else {
+ matches += finish_bp.e.matched;
+ }
return matches;
}
-/*
- * Setup function tracing for the given exported function.
- *
- * Return Value: 1 if entry refers to a BIF or loaded function,
- * 0 if the entry refers to a function not loaded.
- */
-
-static int
-setup_func_trace(Export* ep, void* match_prog)
+int
+erts_finish_breakpointing(void)
{
- if (ep->address == ep->code+3) {
- if (ep->code[3] == (BeamInstr) em_call_error_handler) {
- return 0;
- } else if (ep->code[3] == (BeamInstr) em_call_traced_function) {
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = match_prog;
- MatchSetRef(ep->match_prog_set);
- return 1;
- } else {
- /*
- * We ignore apply/3 and anything else.
- */
- return 0;
- }
- }
-
+ ERTS_SMP_LC_ASSERT(erts_is_code_ix_locked());
+
/*
- * Currently no trace support for native code.
+ * Memory barriers will be issued for all processes *before*
+ * each of the stages below. (Unless the other schedulers
+ * are blocked, in which case memory barriers will be issued
+ * when they are awaken.)
*/
- if (erts_is_native_break(ep->address)) {
+
+ switch (finish_bp.current++) {
+ case 0:
+ /*
+ * At this point, in all functions that are to be breakpointed,
+ * a pointer to a GenericBp struct has already been added,
+ *
+ * Insert the new breakpoints (if any) into the
+ * code. Different schedulers may see breakpoint instruction
+ * at different times, but it does not matter since the newly
+ * added breakpoints are disabled.
+ */
+ if (finish_bp.install) {
+ if (finish_bp.local) {
+ erts_install_breakpoints(&finish_bp.f);
+ } else {
+ install_exp_breakpoints(&finish_bp.e);
+ }
+ }
+ setup_bif_trace();
+ return 1;
+ case 1:
+ /*
+ * Switch index for the breakpoint data, activating the staged
+ * data. (Depending on the changes in the breakpoint data,
+ * that could either activate breakpoints or disable
+ * breakpoints.)
+ */
+ erts_commit_staged_bp();
+ return 1;
+ case 2:
+ /*
+ * Remove breakpoints instructions for disabled breakpoints
+ * (if any).
+ */
+ if (finish_bp.install) {
+ if (finish_bp.local) {
+ uninstall_exp_breakpoints(&finish_bp.e);
+ } else {
+ erts_uninstall_breakpoints(&finish_bp.f);
+ }
+ } else {
+ if (finish_bp.local) {
+ erts_uninstall_breakpoints(&finish_bp.f);
+ } else {
+ uninstall_exp_breakpoints(&finish_bp.e);
+ }
+ }
+ reset_bif_trace();
+ return 1;
+ case 3:
+ /*
+ * Now all breakpoints have either been inserted or removed.
+ * For all updated breakpoints, copy the active breakpoint
+ * data to the staged breakpoint data to make them equal
+ * (simplifying for the next time breakpoints are to be
+ * updated). If any breakpoints have been totally disabled,
+ * deallocate the GenericBp structs for them.
+ */
+ erts_consolidate_bif_bp_data();
+ clean_export_entries(&finish_bp.e);
+ erts_consolidate_bp_data(&finish_bp.e, 0);
+ erts_consolidate_bp_data(&finish_bp.f, 1);
+ erts_bp_free_matched_functions(&finish_bp.e);
+ erts_bp_free_matched_functions(&finish_bp.f);
return 0;
+ default:
+ ASSERT(0);
}
-
- ep->code[3] = (BeamInstr) em_call_traced_function;
- ep->code[4] = (BeamInstr) ep->address;
- ep->address = ep->code+3;
- ep->match_prog_set = match_prog;
- MatchSetRef(ep->match_prog_set);
- return 1;
+ return 0;
}
-static void setup_bif_trace(int bif_index) {
- Export *ep = bif_export[bif_index];
-
- ASSERT(ExportIsBuiltIn(ep));
- ASSERT(ep->code[4]);
- ep->code[4] = (BeamInstr) bif_table[bif_index].traced;
-}
+static void
+install_exp_breakpoints(BpFunctions* f)
+{
+ const ErtsCodeIndex code_ix = erts_active_code_ix();
+ BpFunction* fp = f->matching;
+ Uint ne = f->matched;
+ Uint i;
+ Uint offset = offsetof(Export, code) + 3*sizeof(BeamInstr);
-static void set_trace_bif(int bif_index, void* match_prog) {
- Export *ep = bif_export[bif_index];
-
-#ifdef HARDDEBUG
- erts_fprintf(stderr, "set_trace_bif: %T:%T/%bpu\n",
- ep->code[0], ep->code[1], ep->code[2]);
-#endif
- ASSERT(ExportIsBuiltIn(ep));
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = match_prog;
- MatchSetRef(ep->match_prog_set);
-}
+ for (i = 0; i < ne; i++) {
+ BeamInstr* pc = fp[i].pc;
+ Export* ep = (Export *) (((char *)pc)-offset);
-/*
- * Reset function tracing for the given exported function.
- *
- * Return Value: 1 if entry refers to a BIF or loaded function,
- * 0 if the entry refers to a function not loaded.
- */
+ ep->addressv[code_ix] = pc;
+ }
+}
-static int
-reset_func_trace(Export* ep)
+static void
+uninstall_exp_breakpoints(BpFunctions* f)
{
- if (ep->address == ep->code+3) {
- if (ep->code[3] == (BeamInstr) em_call_error_handler) {
- return 0;
- } else if (ep->code[3] == (BeamInstr) em_call_traced_function) {
- ep->address = (Uint *) ep->code[4];
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = NULL;
- return 1;
- } else {
- /*
- * We ignore apply/3 and anything else.
- */
- return 0;
+ const ErtsCodeIndex code_ix = erts_active_code_ix();
+ BpFunction* fp = f->matching;
+ Uint ne = f->matched;
+ Uint i;
+ Uint offset = offsetof(Export, code) + 3*sizeof(BeamInstr);
+
+ for (i = 0; i < ne; i++) {
+ BeamInstr* pc = fp[i].pc;
+ Export* ep = (Export *) (((char *)pc)-offset);
+
+ if (ep->addressv[code_ix] != pc) {
+ continue;
}
+ ASSERT(*pc == (BeamInstr) BeamOp(op_jump_f));
+ ep->addressv[code_ix] = (BeamInstr *) ep->code[4];
}
-
- /*
- * Currently no trace support for native code.
- */
- if (erts_is_native_break(ep->address)) {
- return 0;
- }
-
- /*
- * Nothing to do, but the export entry matches.
- */
+}
+
+static void
+clean_export_entries(BpFunctions* f)
+{
+ const ErtsCodeIndex code_ix = erts_active_code_ix();
+ BpFunction* fp = f->matching;
+ Uint ne = f->matched;
+ Uint i;
+ Uint offset = offsetof(Export, code) + 3*sizeof(BeamInstr);
- return 1;
+ for (i = 0; i < ne; i++) {
+ BeamInstr* pc = fp[i].pc;
+ Export* ep = (Export *) (((char *)pc)-offset);
+
+ if (ep->addressv[code_ix] == pc) {
+ continue;
+ }
+ if (*pc == (BeamInstr) BeamOp(op_jump_f)) {
+ ep->code[3] = (BeamInstr) 0;
+ ep->code[4] = (BeamInstr) 0;
+ }
+ }
}
-static void reset_bif_trace(int bif_index) {
- Export *ep = bif_export[bif_index];
-
- ASSERT(ExportIsBuiltIn(ep));
- ASSERT(ep->code[4]);
- ASSERT(! ep->match_prog_set);
- ASSERT(! erts_is_mtrace_break((BeamInstr *)ep->code+3, NULL, NULL));
- ep->code[4] = (BeamInstr) bif_table[bif_index].f;
+static void
+setup_bif_trace(void)
+{
+ int i;
+
+ for (i = 0; i < BIF_SIZE; ++i) {
+ Export *ep = bif_export[i];
+ GenericBp* g = (GenericBp *) ep->fake_op_func_info_for_hipe[1];
+ if (g) {
+ if (ExportIsBuiltIn(ep)) {
+ ASSERT(ep->code[4]);
+ ep->code[4] = (BeamInstr) bif_table[i].traced;
+ }
+ }
+ }
}
-static void clear_trace_bif(int bif_index) {
- Export *ep = bif_export[bif_index];
-
-#ifdef HARDDEBUG
- erts_fprintf(stderr, "clear_trace_bif: %T:%T/%bpu\n",
- ep->code[0], ep->code[1], ep->code[2]);
-#endif
- ASSERT(ExportIsBuiltIn(ep));
- MatchSetUnref(ep->match_prog_set);
- ep->match_prog_set = NULL;
+static void
+reset_bif_trace(void)
+{
+ int i;
+ ErtsBpIndex active = erts_active_bp_ix();
+
+ for (i = 0; i < BIF_SIZE; ++i) {
+ Export *ep = bif_export[i];
+ BeamInstr* pc = ep->code+3;
+ GenericBp* g = (GenericBp *) pc[-4];
+ if (g && g->data[active].flags == 0) {
+ if (ExportIsBuiltIn(ep)) {
+ ASSERT(ep->code[4]);
+ ep->code[4] = (BeamInstr) bif_table[i].f;
+ }
+ }
+ }
}
/*
@@ -2142,9 +2205,9 @@ BIF_RETTYPE system_profile_2(BIF_ALIST_2)
/* Check if valid process, no locks are taken */
if (is_internal_pid(profiler)) {
- if (internal_pid_index(profiler) >= erts_max_processes) goto error;
- profiler_p = process_tab[internal_pid_index(profiler)];
- if (INVALID_PID(profiler_p, profiler)) goto error;
+ profiler_p = erts_proc_lookup(profiler);
+ if (!profiler_p)
+ goto error;
} else if (is_internal_port(profiler)) {
if (internal_port_index(profiler) >= erts_max_ports) goto error;
profiler_port = &erts_port[internal_port_index(profiler)];
diff --git a/erts/emulator/beam/erl_cpu_topology.c b/erts/emulator/beam/erl_cpu_topology.c
index fe3693d0ca..41e71881a0 100644
--- a/erts/emulator/beam/erl_cpu_topology.c
+++ b/erts/emulator/beam/erl_cpu_topology.c
@@ -486,7 +486,7 @@ erts_sched_check_cpu_bind_post_suspend(ErtsSchedulerData *esdp)
erts_thr_set_main_status(1, (int) esdp->no);
/* Make sure we check if we should bind to a cpu or not... */
- esdp->run_queue->flags |= ERTS_RUNQ_FLG_CHK_CPU_BIND;
+ ERTS_RUNQ_FLGS_SET(esdp->run_queue, ERTS_RUNQ_FLG_CHK_CPU_BIND);
}
#endif
@@ -498,9 +498,6 @@ erts_sched_check_cpu_bind(ErtsSchedulerData *esdp)
erts_cpu_groups_map_t *cgm;
erts_cpu_groups_callback_list_t *cgcl;
erts_cpu_groups_callback_call_t *cgcc;
-#ifdef ERTS_SMP
- esdp->run_queue->flags &= ~ERTS_RUNQ_FLG_CHK_CPU_BIND;
-#endif
erts_smp_runq_unlock(esdp->run_queue);
erts_smp_rwmtx_rwlock(&cpuinfo_rwmtx);
cpu_id = scheduler2cpu_map[esdp->no].bind_id;
diff --git a/erts/emulator/beam/erl_db.c b/erts/emulator/beam/erl_db.c
index 51bdf53823..5bd8163968 100644
--- a/erts/emulator/beam/erl_db.c
+++ b/erts/emulator/beam/erl_db.c
@@ -2816,7 +2816,6 @@ void init_db(void)
{
DbTable init_tb;
int i;
- extern BeamInstr* em_apply_bif;
Eterm *hp;
unsigned bits;
size_t size;
@@ -2850,7 +2849,7 @@ void init_db(void)
else
db_max_tabs = user_requested_db_max_tabs;
- bits = erts_fit_in_bits(db_max_tabs-1);
+ bits = erts_fit_in_bits_int32(db_max_tabs-1);
if (bits > SMALL_BITS) {
erl_exit(1,"Max limit for ets tabled too high %u (max %u).",
db_max_tabs, ((Uint)1)<<SMALL_BITS);
@@ -2949,49 +2948,24 @@ void init_db(void)
}
/* Non visual BIF to trap to. */
- memset(&ets_select_delete_continue_exp, 0, sizeof(Export));
- ets_select_delete_continue_exp.address =
- &ets_select_delete_continue_exp.code[3];
- ets_select_delete_continue_exp.code[0] = am_ets;
- ets_select_delete_continue_exp.code[1] = am_atom_put("delete_trap",11);
- ets_select_delete_continue_exp.code[2] = 1;
- ets_select_delete_continue_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_delete_continue_exp.code[4] =
- (BeamInstr) &ets_select_delete_1;
+ erts_init_trap_export(&ets_select_delete_continue_exp,
+ am_ets, am_atom_put("delete_trap",11), 1,
+ &ets_select_delete_1);
/* Non visual BIF to trap to. */
- memset(&ets_select_count_continue_exp, 0, sizeof(Export));
- ets_select_count_continue_exp.address =
- &ets_select_count_continue_exp.code[3];
- ets_select_count_continue_exp.code[0] = am_ets;
- ets_select_count_continue_exp.code[1] = am_atom_put("count_trap",11);
- ets_select_count_continue_exp.code[2] = 1;
- ets_select_count_continue_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_count_continue_exp.code[4] =
- (BeamInstr) &ets_select_count_1;
+ erts_init_trap_export(&ets_select_count_continue_exp,
+ am_ets, am_atom_put("count_trap",11), 1,
+ &ets_select_count_1);
/* Non visual BIF to trap to. */
- memset(&ets_select_continue_exp, 0, sizeof(Export));
- ets_select_continue_exp.address =
- &ets_select_continue_exp.code[3];
- ets_select_continue_exp.code[0] = am_ets;
- ets_select_continue_exp.code[1] = am_atom_put("select_trap",11);
- ets_select_continue_exp.code[2] = 1;
- ets_select_continue_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_continue_exp.code[4] =
- (BeamInstr) &ets_select_trap_1;
+ erts_init_trap_export(&ets_select_continue_exp,
+ am_ets, am_atom_put("select_trap",11), 1,
+ &ets_select_trap_1);
/* Non visual BIF to trap to. */
- memset(&ets_delete_continue_exp, 0, sizeof(Export));
- ets_delete_continue_exp.address = &ets_delete_continue_exp.code[3];
- ets_delete_continue_exp.code[0] = am_ets;
- ets_delete_continue_exp.code[1] = am_atom_put("delete_trap",11);
- ets_delete_continue_exp.code[2] = 1;
- ets_delete_continue_exp.code[3] = (BeamInstr) em_apply_bif;
- ets_delete_continue_exp.code[4] = (BeamInstr) &ets_delete_trap;
+ erts_init_trap_export(&ets_delete_continue_exp,
+ am_ets, am_atom_put("delete_trap",11), 1,
+ &ets_delete_trap);
hp = ms_delete_all_buff;
ms_delete_all = CONS(hp, am_true, NIL);
@@ -3124,7 +3098,7 @@ retry:
if (to_proc == NULL) {
return 0; /* heir not alive, table still mine */
}
- if (erts_cmp_timeval(&to_proc->started, &tb->common.heir_started) != 0) {
+ if (to_proc->started_interval != tb->common.heir_started_interval) {
erts_smp_proc_unlock(to_proc, to_locks);
return 0; /* heir dead and pid reused, table still mine */
}
@@ -3520,14 +3494,14 @@ static void set_heir(Process* me, DbTable* tb, Eterm heir, UWord heir_data)
return;
}
if (heir == me->id) {
- tb->common.heir_started = me->started;
+ erts_ensure_later_proc_interval(me->started_interval);
+ tb->common.heir_started_interval = me->started_interval;
}
else {
- Process* heir_proc= erts_pid2proc_opt(me, ERTS_PROC_LOCK_MAIN, heir,
- 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ Process* heir_proc= erts_proc_lookup(heir);
if (heir_proc != NULL) {
- tb->common.heir_started = heir_proc->started;
- erts_smp_proc_dec_refc(heir_proc);
+ erts_ensure_later_proc_interval(heir_proc->started_interval);
+ tb->common.heir_started_interval = heir_proc->started_interval;
} else {
tb->common.heir = am_none;
}
diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c
index 312050b931..faa7f31d99 100644
--- a/erts/emulator/beam/erl_db_tree.c
+++ b/erts/emulator/beam/erl_db_tree.c
@@ -452,16 +452,8 @@ DbTableMethod db_tree =
void db_initialize_tree(void)
{
- memset(&ets_select_reverse_exp, 0, sizeof(Export));
- ets_select_reverse_exp.address =
- &ets_select_reverse_exp.code[3];
- ets_select_reverse_exp.code[0] = am_ets;
- ets_select_reverse_exp.code[1] = am_reverse;
- ets_select_reverse_exp.code[2] = 3;
- ets_select_reverse_exp.code[3] =
- (BeamInstr) em_apply_bif;
- ets_select_reverse_exp.code[4] =
- (BeamInstr) &ets_select_reverse;
+ erts_init_trap_export(&ets_select_reverse_exp, am_ets, am_reverse, 3,
+ &ets_select_reverse);
return;
};
diff --git a/erts/emulator/beam/erl_db_util.h b/erts/emulator/beam/erl_db_util.h
index 6a96e174e1..ff5982640d 100644
--- a/erts/emulator/beam/erl_db_util.h
+++ b/erts/emulator/beam/erl_db_util.h
@@ -219,7 +219,7 @@ typedef struct db_table_common {
Eterm owner; /* Pid of the creator */
Eterm heir; /* Pid of the heir */
UWord heir_data; /* To send in ETS-TRANSFER (is_immed or (DbTerm*) */
- SysTimeval heir_started; /* To further identify the heir */
+ Uint64 heir_started_interval; /* To further identify the heir */
Eterm the_name; /* an atom */
Eterm id; /* atom | integer */
DbTableMethod* meth; /* table methods */
diff --git a/erts/emulator/beam/erl_fun.h b/erts/emulator/beam/erl_fun.h
index 54cfd6aa83..217066ab11 100644
--- a/erts/emulator/beam/erl_fun.h
+++ b/erts/emulator/beam/erl_fun.h
@@ -77,8 +77,6 @@ ErlFunEntry* erts_get_fun_entry(Eterm mod, int uniq, int index);
ErlFunEntry* erts_put_fun_entry2(Eterm mod, int old_uniq, int old_index,
byte* uniq, int index, int arity);
-ErlFunEntry* erts_get_fun_entry2(Eterm mod, int old_uniq, int old_index,
- byte* uniq, int index, int arity);
void erts_erase_fun_entry(ErlFunEntry* fe);
void erts_cleanup_funs(ErlFunThing* funp);
diff --git a/erts/emulator/beam/erl_gc.c b/erts/emulator/beam/erl_gc.c
index 52a6e52e6c..6075a527c3 100644
--- a/erts/emulator/beam/erl_gc.c
+++ b/erts/emulator/beam/erl_gc.c
@@ -357,11 +357,7 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj)
trace_gc(p, am_gc_start);
}
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->gcstatus = p->status;
- p->status = P_GARBING;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
-
+ erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC);
if (erts_system_monitor_long_gc != 0) {
get_now(&ms1, &s1, &us1);
}
@@ -404,9 +400,8 @@ erts_garbage_collect(Process* p, int need, Eterm* objv, int nobj)
ErtsGcQuickSanityCheck(p);
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->status = p->gcstatus;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC);
+
if (IS_TRACED_FL(p, F_TRACE_GC)) {
trace_gc(p, am_gc_end);
}
@@ -490,10 +485,7 @@ erts_garbage_collect_hibernate(Process* p)
/*
* Preliminaries.
*/
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->gcstatus = p->status;
- p->status = P_GARBING;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC);
ErtsGcQuickSanityCheck(p);
ASSERT(p->mbuf_sz == 0);
ASSERT(p->mbuf == 0);
@@ -604,9 +596,7 @@ erts_garbage_collect_hibernate(Process* p)
ErtsGcQuickSanityCheck(p);
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->status = p->gcstatus;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC);
}
@@ -630,10 +620,7 @@ erts_garbage_collect_literals(Process* p, Eterm* literals,
/*
* Set GC state.
*/
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->gcstatus = p->status;
- p->status = P_GARBING;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_bor_nob(&p->state, ERTS_PSFLG_GC);
/*
* We assume that the caller has already done a major collection
@@ -775,9 +762,7 @@ erts_garbage_collect_literals(Process* p, Eterm* literals,
/*
* Restore status.
*/
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- p->status = p->gcstatus;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_atomic32_read_band_nob(&p->state, ~ERTS_PSFLG_GC);
}
static int
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index 02164728fe..d382e421e6 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -55,6 +55,61 @@
#endif
/*
+ * The variables below (prefixed with etp_) are for erts/etc/unix/etp-commands
+ * only. Do not remove even though they aren't used elsewhere in the emulator!
+ */
+#ifdef ERTS_SMP
+const int etp_smp_compiled = 1;
+#else
+const int etp_smp_compiled = 0;
+#endif
+#ifdef USE_THREADS
+const int etp_thread_compiled = 1;
+#else
+const int etp_thread_compiled = 0;
+#endif
+const char etp_erts_version[] = ERLANG_VERSION;
+const char etp_otp_release[] = ERLANG_OTP_RELEASE;
+const char etp_compile_date[] = ERLANG_COMPILE_DATE;
+const char etp_arch[] = ERLANG_ARCHITECTURE;
+#ifdef ERTS_ENABLE_KERNEL_POLL
+const int etp_kernel_poll_support = 1;
+#else
+const int etp_kernel_poll_support = 0;
+#endif
+#if defined(ARCH_64)
+const int etp_arch_bits = 64;
+#elif defined(ARCH_32)
+const int etp_arch_bits = 32;
+#else
+# error "Not 64-bit, nor 32-bit arch"
+#endif
+#if HALFWORD_HEAP
+const int etp_halfword = 1;
+#else
+const int etp_halfword = 0;
+#endif
+#ifdef HIPE
+const int etp_hipe = 1;
+#else
+const int etp_hipe = 0;
+#endif
+#ifdef DEBUG
+const int etp_debug_compiled = 1;
+#else
+const int etp_debug_compiled = 0;
+#endif
+#ifdef ERTS_ENABLE_LOCK_COUNT
+const int etp_lock_count = 1;
+#else
+const int etp_lock_count = 0;
+#endif
+#ifdef ERTS_ENABLE_LOCK_CHECK
+const int etp_lock_check = 1;
+#else
+const int etp_lock_check = 0;
+#endif
+/*
* Note about VxWorks: All variables must be initialized by executable code,
* not by an initializer. Otherwise a new instance of the emulator will
* inherit previous values.
@@ -241,6 +296,7 @@ erl_init(int ncpu)
erts_init_trace();
erts_init_binary();
erts_init_bits();
+ erts_code_ix_init();
erts_init_fun_table();
init_atom_table();
init_export_table();
@@ -289,7 +345,8 @@ erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char**
Eterm env;
start_mod = am_atom_put(modname, sys_strlen(modname));
- if (erts_find_function(start_mod, am_start, 2) == NULL) {
+ if (erts_find_function(start_mod, am_start, 2,
+ erts_active_code_ix()) == NULL) {
erl_exit(5, "No function %s:start/2\n", modname);
}
@@ -388,7 +445,7 @@ load_preloaded(void)
if ((code = sys_preload_begin(&preload_p[i])) == 0)
erl_exit(1, "Failed to find preloaded code for module %s\n",
name);
- res = erts_load_module(NULL, 0, NIL, &module_name, code, length);
+ res = erts_preload_module(NULL, 0, NIL, &module_name, code, length);
sys_preload_end(&preload_p[i]);
if (res != NIL)
erl_exit(1,"Failed loading preloaded module %s (%T)\n",
@@ -555,6 +612,7 @@ early_init(int *argc, char **argv) /*
erts_printf_eterm_func = erts_printf_term;
erts_disable_tolerant_timeofday = 0;
display_items = 200;
+ erts_proc.max = ERTS_DEFAULT_MAX_PROCESSES;
erts_backtrace_depth = DEFAULT_BACKTRACE_SIZE;
erts_async_max_threads = 0;
erts_async_thread_suggested_stack_size = ERTS_ASYNC_THREAD_MIN_STACK_SIZE;
@@ -1097,7 +1155,7 @@ erl_start(int argc, char **argv)
case 'P':
/* set maximum number of processes */
Parg = get_arg(argv[i]+2, argv[i+1], &i);
- erts_max_processes = atoi(Parg);
+ erts_proc.max = atoi(Parg);
/* Check of result is delayed until later. This is because +R
may be given after +P. */
break;
@@ -1396,10 +1454,10 @@ erl_start(int argc, char **argv)
}
/* Delayed check of +P flag */
- if (erts_max_processes < ERTS_MIN_PROCESSES
- || erts_max_processes > ERTS_MAX_PROCESSES
+ if (erts_proc.max < ERTS_MIN_PROCESSES
+ || erts_proc.max > ERTS_MAX_PROCESSES
|| (erts_use_r9_pids_ports
- && erts_max_processes > ERTS_MAX_R9_PROCESSES)) {
+ && erts_proc.max > ERTS_MAX_R9_PROCESSES)) {
erts_fprintf(stderr, "bad number of processes %s\n", Parg);
erts_usage();
}
@@ -1427,6 +1485,8 @@ erl_start(int argc, char **argv)
erl_init(ncpu);
load_preloaded();
+ erts_end_staging_code_ix();
+ erts_commit_staging_code_ix();
erts_initialized = 1;
diff --git a/erts/emulator/beam/erl_lock_check.c b/erts/emulator/beam/erl_lock_check.c
index a0f744be9d..95efd9efc3 100644
--- a/erts/emulator/beam/erl_lock_check.c
+++ b/erts/emulator/beam/erl_lock_check.c
@@ -82,8 +82,8 @@ static erts_lc_lock_order_t erts_lock_order[] = {
#ifdef ERTS_SMP
{ "bif_timers", NULL },
{ "reg_tab", NULL },
- { "migration_info_update", NULL },
{ "proc_main", "pid" },
+ { "old_code", "address" },
#ifdef HIPE
{ "hipe_mfait_lock", NULL },
#endif
@@ -93,6 +93,7 @@ static erts_lc_lock_order_t erts_lock_order[] = {
{ "proc_msgq", "pid" },
{ "dist_entry", "address" },
{ "dist_entry_links", "address" },
+ { "code_ix_queue", NULL },
{ "proc_status", "pid" },
{ "proc_tab", NULL },
{ "ports_snapshot", NULL },
@@ -124,6 +125,7 @@ static erts_lc_lock_order_t erts_lock_order[] = {
{ "removed_fd_pre_alloc_lock", "address" },
{ "state_prealloc", NULL },
{ "schdlr_sspnd", NULL },
+ { "migration_info_update", NULL },
{ "run_queue", "address" },
{ "cpu_info", NULL },
{ "pollset", "address" },
@@ -446,7 +448,7 @@ print_lock2(char *prefix, Sint16 id, Wterm extra, Uint16 flags, char *suffix)
"%s'%s:%p%s'%s%s",
prefix,
lname,
- boxed_val(extra),
+ _unchecked_boxed_val(extra),
lock_type(flags),
rw_op_str(flags),
suffix);
diff --git a/erts/emulator/beam/erl_message.c b/erts/emulator/beam/erl_message.c
index 919567ab27..c98ca09f3f 100644
--- a/erts/emulator/beam/erl_message.c
+++ b/erts/emulator/beam/erl_message.c
@@ -296,36 +296,6 @@ erts_msg_distext2heap(Process *pp,
return THE_NON_VALUE;
}
-static ERTS_INLINE void
-notify_new_message(Process *receiver)
-{
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS
- & erts_proc_lc_my_proc_locks(receiver));
-
- switch (receiver->status) {
- case P_GARBING:
- switch (receiver->gcstatus) {
- case P_SUSPENDED:
- goto suspended;
- case P_WAITING:
- goto waiting;
- default:
- break;
- }
- break;
- case P_SUSPENDED:
- suspended:
- receiver->rstatus = P_RUNABLE;
- break;
- case P_WAITING:
- waiting:
- erts_add_to_runq(receiver);
- break;
- default:
- break;
- }
-}
-
void
erts_queue_dist_message(Process *rcvr,
ErtsProcLocks *rcvr_locks,
@@ -339,7 +309,7 @@ erts_queue_dist_message(Process *rcvr,
Sint tok_serial = 0;
#endif
#ifdef ERTS_SMP
- ErtsProcLocks need_locks;
+ erts_aint_t state;
#endif
ERTS_SMP_LC_ASSERT(*rcvr_locks == erts_proc_lc_my_proc_locks(rcvr));
@@ -347,20 +317,21 @@ erts_queue_dist_message(Process *rcvr,
mp = message_alloc();
#ifdef ERTS_SMP
- need_locks = ~(*rcvr_locks) & (ERTS_PROC_LOCK_MSGQ|ERTS_PROC_LOCK_STATUS);
- if (need_locks) {
- *rcvr_locks |= need_locks;
- if (erts_smp_proc_trylock(rcvr, need_locks) == EBUSY) {
- if (need_locks == ERTS_PROC_LOCK_MSGQ) {
+ if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ)) {
+ if (erts_smp_proc_trylock(rcvr, ERTS_PROC_LOCK_MSGQ) == EBUSY) {
+ ErtsProcLocks need_locks = ERTS_PROC_LOCK_MSGQ;
+ if (*rcvr_locks & ERTS_PROC_LOCK_STATUS) {
erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_STATUS);
- need_locks = (ERTS_PROC_LOCK_MSGQ
- | ERTS_PROC_LOCK_STATUS);
+ need_locks |= ERTS_PROC_LOCK_STATUS;
}
erts_smp_proc_lock(rcvr, need_locks);
}
}
- if (rcvr->is_exiting || ERTS_PROC_PENDING_EXIT(rcvr)) {
+ state = erts_smp_atomic32_read_acqb(&rcvr->state);
+ if (state & (ERTS_PSFLG_PENDING_EXIT|ERTS_PSFLG_EXITING)) {
+ if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ))
+ erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_MSGQ);
/* Drop message if receiver is exiting or has a pending exit ... */
if (is_not_nil(token)) {
ErlHeapFragment *heap_frag;
@@ -376,6 +347,8 @@ erts_queue_dist_message(Process *rcvr,
/* Ahh... need to decode it in order to trace it... */
ErlHeapFragment *mbuf;
Eterm msg;
+ if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ))
+ erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_MSGQ);
message_free(mp);
msg = erts_msg_distext2heap(rcvr, rcvr_locks, &mbuf, &token, dist_ext);
if (is_value(msg))
@@ -437,26 +410,32 @@ erts_queue_dist_message(Process *rcvr,
mp->data.dist_ext = dist_ext;
LINK_MESSAGE(rcvr, mp);
- notify_new_message(rcvr);
+ if (!(*rcvr_locks & ERTS_PROC_LOCK_MSGQ))
+ erts_smp_proc_unlock(rcvr, ERTS_PROC_LOCK_MSGQ);
+
+ erts_proc_notify_new_message(rcvr);
}
}
/* Add a message last in message queue */
-void
-erts_queue_message(Process* receiver,
- ErtsProcLocks *receiver_locks,
- ErlHeapFragment* bp,
- Eterm message,
- Eterm seq_trace_token
+static int
+queue_message(Process *c_p,
+ Process* receiver,
+ ErtsProcLocks *receiver_locks,
+ erts_aint32_t *receiver_state,
+ ErlHeapFragment* bp,
+ Eterm message,
+ Eterm seq_trace_token
#ifdef USE_VM_PROBES
, Eterm dt_utag
#endif
-)
+ )
{
ErlMessage* mp;
-#ifdef ERTS_SMP
- ErtsProcLocks need_locks;
-#else
+ int locked_msgq = 0;
+ erts_aint_t state;
+
+#ifndef ERTS_SMP
ASSERT(bp != NULL || receiver->mbuf == NULL);
#endif
@@ -464,31 +443,45 @@ erts_queue_message(Process* receiver,
mp = message_alloc();
+ if (receiver_state)
+ state = *receiver_state;
+ else
+ state = erts_smp_atomic32_read_acqb(&receiver->state);
+
#ifdef ERTS_SMP
- need_locks = ~(*receiver_locks) & (ERTS_PROC_LOCK_MSGQ
- | ERTS_PROC_LOCK_STATUS);
- if (need_locks) {
- *receiver_locks |= need_locks;
- if (erts_smp_proc_trylock(receiver, need_locks) == EBUSY) {
- if (need_locks == ERTS_PROC_LOCK_MSGQ) {
+
+ if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))
+ goto exiting;
+
+ if (!(*receiver_locks & ERTS_PROC_LOCK_MSGQ)) {
+ if (erts_smp_proc_trylock(receiver, ERTS_PROC_LOCK_MSGQ) == EBUSY) {
+ ErtsProcLocks need_locks = ERTS_PROC_LOCK_MSGQ;
+ if (*receiver_locks & ERTS_PROC_LOCK_STATUS) {
erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_STATUS);
- need_locks = (ERTS_PROC_LOCK_MSGQ
- | ERTS_PROC_LOCK_STATUS);
+ need_locks |= ERTS_PROC_LOCK_STATUS;
}
erts_smp_proc_lock(receiver, need_locks);
}
+ locked_msgq = 1;
+ state = erts_smp_atomic32_read_nob(&receiver->state);
+ if (receiver_state)
+ *receiver_state = state;
}
- if (receiver->is_exiting || ERTS_PROC_PENDING_EXIT(receiver)) {
- /* Drop message if receiver is exiting or has a pending
- * exit ...
- */
+#endif
+
+ if (state & (ERTS_PSFLG_PENDING_EXIT|ERTS_PSFLG_EXITING)) {
+#ifdef ERTS_SMP
+ exiting:
+#endif
+ /* Drop message if receiver is exiting or has a pending exit... */
+ if (locked_msgq)
+ erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_MSGQ);
if (bp)
free_message_buffer(bp);
message_free(mp);
- return;
+ return 0;
}
-#endif
ERL_MESSAGE_TERM(mp) = message;
ERL_MESSAGE_TOKEN(mp) = seq_trace_token;
@@ -511,12 +504,11 @@ erts_queue_message(Process* receiver,
ERTS_SMP_MSGQ_MV_INQ2PRIVQ(receiver);
LINK_MESSAGE_PRIVQ(receiver, mp);
}
- else {
+ else
+#endif
+ {
LINK_MESSAGE(receiver, mp);
}
-#else
- LINK_MESSAGE(receiver, mp);
-#endif
#ifdef USE_VM_PROBES
if (DTRACE_ENABLED(message_queued)) {
@@ -536,15 +528,43 @@ erts_queue_message(Process* receiver,
tok_label, tok_lastcnt, tok_serial);
}
#endif
- notify_new_message(receiver);
- if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE)) {
+ if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE))
trace_receive(receiver, message);
- }
+
+ if (locked_msgq)
+ erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_MSGQ);
+
+ erts_proc_notify_new_message(receiver);
#ifndef ERTS_SMP
ERTS_HOLE_CHECK(receiver);
#endif
+ return 0;
+}
+
+void
+erts_queue_message(Process* receiver,
+ ErtsProcLocks *receiver_locks,
+ ErlHeapFragment* bp,
+ Eterm message,
+ Eterm seq_trace_token
+#ifdef USE_VM_PROBES
+ , Eterm dt_utag
+#endif
+ )
+{
+ queue_message(NULL,
+ receiver,
+ receiver_locks,
+ NULL,
+ bp,
+ message,
+ seq_trace_token
+#ifdef USE_VM_PROBES
+ , dt_utag
+#endif
+ );
}
void
@@ -576,9 +596,7 @@ erts_move_msg_mbuf_to_heap(Eterm** hpp, ErlOffHeap* off_heap, ErlMessage *msg)
#endif
#ifdef HARD_DEBUG
- ProcBin *dbg_mso_start = off_heap->mso;
- ErlFunThing *dbg_fun_start = off_heap->funs;
- ExternalThing *dbg_external_start = off_heap->externals;
+ struct erl_off_heap_header* dbg_oh_start = off_heap->first;
Eterm dbg_term, dbg_token;
ErlHeapFragment *dbg_bp;
Uint *dbg_hp, *dbg_thp_start;
@@ -752,48 +770,16 @@ copy_done:
int i, j;
ErlHeapFragment* frag;
{
- ProcBin *mso = off_heap->mso;
+ struct erl_off_heap_header* dbg_oh = off_heap->first;
i = j = 0;
- while (mso != dbg_mso_start) {
- mso = mso->next;
+ while (dbg_oh != dbg_oh_start) {
+ dbg_oh = dbg_oh->next;
i++;
}
for (frag=bp; frag; frag=frag->next) {
- mso = frag->off_heap.mso;
- while (mso) {
- mso = mso->next;
- j++;
- }
- }
- ASSERT(i == j);
- }
- {
- ErlFunThing *fun = off_heap->funs;
- i = j = 0;
- while (fun != dbg_fun_start) {
- fun = fun->next;
- i++;
- }
- for (frag=bp; frag; frag=frag->next) {
- fun = frag->off_heap.funs;
- while (fun) {
- fun = fun->next;
- j++;
- }
- }
- ASSERT(i == j);
- }
- {
- ExternalThing *external = off_heap->externals;
- i = j = 0;
- while (external != dbg_external_start) {
- external = external->next;
- i++;
- }
- for (frag=bp; frag; frag=frag->next) {
- external = frag->off_heap.externals;
- while (external) {
- external = external->next;
+ dbg_oh = frag->off_heap.first;
+ while (dbg_oh) {
+ dbg_oh = dbg_oh->next;
j++;
}
}
@@ -1036,21 +1022,34 @@ erts_send_message(Process* sender,
#ifdef ERTS_SMP
ErlOffHeap *ohp;
Eterm *hp;
+ erts_aint32_t state;
+
BM_SWAP_TIMER(send,size);
msize = size_object(message);
BM_SWAP_TIMER(size,send);
- hp = erts_alloc_message_heap(msize,&bp,&ohp,receiver,receiver_locks);
+ hp = erts_alloc_message_heap_state(msize,
+ &bp,
+ &ohp,
+ receiver,
+ receiver_locks,
+ &state);
BM_SWAP_TIMER(send,copy);
message = copy_struct(message, msize, &hp, ohp);
BM_MESSAGE_COPIED(msz);
BM_SWAP_TIMER(copy,send);
DTRACE6(message_send, sender_name, receiver_name,
msize, tok_label, tok_lastcnt, tok_serial);
- erts_queue_message(receiver, receiver_locks, bp, message, token
+ queue_message(sender,
+ receiver,
+ receiver_locks,
+ &state,
+ bp,
+ message,
+ token
#ifdef USE_VM_PROBES
- , NIL
+ , NIL
#endif
- );
+ );
BM_SWAP_TIMER(send,system);
#else
ErlMessage* mp = message_alloc();
@@ -1081,11 +1080,8 @@ erts_send_message(Process* sender,
mp->data.attached = NULL;
LINK_MESSAGE(receiver, mp);
- if (receiver->status == P_WAITING) {
- erts_add_to_runq(receiver);
- } else if (receiver->status == P_SUSPENDED) {
- receiver->rstatus = P_RUNABLE;
- }
+ erts_proc_notify_new_message(receiver);
+
if (IS_TRACED_FL(receiver, F_TRACE_RECEIVE)) {
trace_receive(receiver, message);
}
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index b323bc7f69..594c51a5db 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -311,6 +311,7 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
#endif
Eterm receiver = to_pid->pid;
int flush_me = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
if (env != NULL) {
c_p = env->proc;
@@ -330,8 +331,11 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
#if defined(ERTS_ENABLE_LOCK_CHECK) && defined(ERTS_SMP)
rp_had_locks = rp_locks;
#endif
- rp = erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN,
- receiver, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC);
+
+ rp = (scheduler
+ ? erts_proc_lookup(receiver)
+ : erts_pid2proc_opt(c_p, ERTS_PROC_LOCK_MAIN,
+ receiver, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC));
if (rp == NULL) {
ASSERT(env == NULL || receiver != c_p->id);
return 0;
@@ -358,12 +362,12 @@ int enif_send(ErlNifEnv* env, const ErlNifPid* to_pid,
, NIL
#endif
);
- if (rp_locks) {
- ERTS_SMP_LC_ASSERT(rp_locks == (rp_had_locks | (ERTS_PROC_LOCK_MSGQ |
- ERTS_PROC_LOCK_STATUS)));
- erts_smp_proc_unlock(rp, (ERTS_PROC_LOCK_MSGQ | ERTS_PROC_LOCK_STATUS));
- }
- erts_smp_proc_dec_refc(rp);
+ if (c_p == rp)
+ rp_locks &= ~ERTS_PROC_LOCK_MAIN;
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
if (flush_me) {
cache_env(env);
}
@@ -1520,6 +1524,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
if (len < 0) {
BIF_ERROR(BIF_P, BADARG);
}
+
lib_name = (char *) erts_alloc(ERTS_ALC_T_TMP, len + 1);
if (intlist_to_buf(BIF_ARG_1, lib_name, len) != len) {
@@ -1528,6 +1533,12 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
}
lib_name[len] = '\0';
+ if (!erts_try_seize_code_write_permission(BIF_P)) {
+ erts_free(ERTS_ALC_T_TMP, lib_name);
+ ERTS_BIF_YIELD2(bif_export[BIF_load_nif_2],
+ BIF_P, BIF_ARG_1, BIF_ARG_2);
+ }
+
/* Block system (is this the right place to do it?) */
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
erts_smp_thr_progress_block();
@@ -1541,11 +1552,11 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
ASSERT(caller != NULL);
mod_atom = caller[0];
ASSERT(is_atom(mod_atom));
- mod=erts_get_module(mod_atom);
+ mod=erts_get_module(mod_atom, erts_active_code_ix());
ASSERT(mod != NULL);
- if (!in_area(caller, mod->code, mod->code_length)) {
- ASSERT(in_area(caller, mod->old_code, mod->old_code_length));
+ if (!in_area(caller, mod->curr.code, mod->curr.code_length)) {
+ ASSERT(in_area(caller, mod->old.code, mod->old.code_length));
ret = load_nif_error(BIF_P, "old_code", "Calling load_nif from old "
"module '%T' not allowed", mod_atom);
@@ -1591,7 +1602,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
BeamInstr** code_pp;
ErlNifFunc* f = &entry->funcs[i];
if (!erts_atom_get(f->name, sys_strlen(f->name), &f_atom)
- || (code_pp = get_func_pp(mod->code, f_atom, f->arity))==NULL) {
+ || (code_pp = get_func_pp(mod->curr.code, f_atom, f->arity))==NULL) {
ret = load_nif_error(BIF_P,bad_lib,"Function not found %T:%s/%u",
mod_atom, f->name, f->arity);
}
@@ -1620,18 +1631,18 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
erts_refc_init(&lib->rt_dtor_cnt, 0);
lib->mod = mod;
env.mod_nif = lib;
- if (mod->nif != NULL) { /* Reload */
+ if (mod->curr.nif != NULL) { /* Reload */
int k;
- lib->priv_data = mod->nif->priv_data;
+ lib->priv_data = mod->curr.nif->priv_data;
- ASSERT(mod->nif->entry != NULL);
+ ASSERT(mod->curr.nif->entry != NULL);
if (entry->reload == NULL) {
ret = load_nif_error(BIF_P,reload,"Reload not supported by this NIF library.");
goto error;
}
/* Check that no NIF is removed */
- for (k=0; k < mod->nif->entry->num_of_funcs; k++) {
- ErlNifFunc* old_func = &mod->nif->entry->funcs[k];
+ for (k=0; k < mod->curr.nif->entry->num_of_funcs; k++) {
+ ErlNifFunc* old_func = &mod->curr.nif->entry->funcs[k];
for (i=0; i < entry->num_of_funcs; i++) {
if (old_func->arity == entry->funcs[i].arity
&& sys_strcmp(old_func->name, entry->funcs[i].name) == 0) {
@@ -1652,24 +1663,24 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
ret = load_nif_error(BIF_P, reload, "Library reload-call unsuccessful.");
}
else {
- mod->nif->entry = NULL; /* to prevent 'unload' callback */
- erts_unload_nif(mod->nif);
+ mod->curr.nif->entry = NULL; /* to prevent 'unload' callback */
+ erts_unload_nif(mod->curr.nif);
reload_warning = 1;
}
}
else {
lib->priv_data = NULL;
- if (mod->old_nif != NULL) { /* Upgrade */
- void* prev_old_data = mod->old_nif->priv_data;
+ if (mod->old.nif != NULL) { /* Upgrade */
+ void* prev_old_data = mod->old.nif->priv_data;
if (entry->upgrade == NULL) {
ret = load_nif_error(BIF_P, upgrade, "Upgrade not supported by this NIF library.");
goto error;
}
erts_pre_nif(&env, BIF_P, lib);
- veto = entry->upgrade(&env, &lib->priv_data, &mod->old_nif->priv_data, BIF_ARG_2);
+ veto = entry->upgrade(&env, &lib->priv_data, &mod->old.nif->priv_data, BIF_ARG_2);
erts_post_nif(&env);
if (veto) {
- mod->old_nif->priv_data = prev_old_data;
+ mod->old.nif->priv_data = prev_old_data;
ret = load_nif_error(BIF_P, upgrade, "Library upgrade-call unsuccessful.");
}
/*else if (mod->old_nif->priv_data != prev_old_data) {
@@ -1689,20 +1700,21 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
/*
** Everything ok, patch the beam code with op_call_nif
*/
- mod->nif = lib;
+ mod->curr.nif = lib;
for (i=0; i < entry->num_of_funcs; i++)
{
BeamInstr* code_ptr;
erts_atom_get(entry->funcs[i].name, sys_strlen(entry->funcs[i].name), &f_atom);
- code_ptr = *get_func_pp(mod->code, f_atom, entry->funcs[i].arity);
+ code_ptr = *get_func_pp(mod->curr.code, f_atom, entry->funcs[i].arity);
if (code_ptr[1] == 0) {
code_ptr[5+0] = (BeamInstr) BeamOp(op_call_nif);
}
else { /* Function traced, patch the original instruction word */
- BpData** bps = (BpData**) code_ptr[1];
- BpData* bp = (BpData*) bps[erts_bp_sched2ix()];
- bp->orig_instr = (BeamInstr) BeamOp(op_call_nif);
+ GenericBp* g = (GenericBp *) code_ptr[1];
+ ASSERT(code_ptr[5+0] ==
+ (BeamInstr) BeamOp(op_i_generic_breakpoint));
+ g->orig_instr = (BeamInstr) BeamOp(op_call_nif);
}
code_ptr[5+1] = (BeamInstr) entry->funcs[i].fptr;
code_ptr[5+2] = (BeamInstr) lib;
@@ -1722,6 +1734,7 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
erts_smp_thr_progress_unblock();
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
+ erts_release_code_write_permission();
erts_free(ERTS_ALC_T_TMP, lib_name);
if (reload_warning) {
diff --git a/erts/emulator/beam/erl_node_container_utils.h b/erts/emulator/beam/erl_node_container_utils.h
index 329a2204cc..7b4cb7b042 100644
--- a/erts/emulator/beam/erl_node_container_utils.h
+++ b/erts/emulator/beam/erl_node_container_utils.h
@@ -128,8 +128,47 @@ extern int erts_use_r9_pids_ports;
* Pids *
\* */
-#define internal_pid_index(x) (internal_pid_data((x)) \
- & erts_process_tab_index_mask)
+#define erts_max_processes erts_proc.max
+
+typedef struct {
+ erts_smp_atomic_t *tab;
+ int max;
+ int tab_cache_lines;
+ int pix_per_cache_line;
+ int pix_cl_mask;
+ int pix_cl_shift;
+ int pix_cli_mask;
+ int pix_cli_shift;
+} ErtsProcTab;
+
+extern ErtsProcTab erts_proc;
+
+ERTS_GLB_INLINE int erts_pid_data2ix(Eterm pid_data);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE int erts_pid_data2ix(Eterm pid_data)
+{
+ int n, pix;
+
+ n = (int) pid_data;
+ if (erts_proc.pix_cl_mask) {
+ pix = ((n & erts_proc.pix_cl_mask) << erts_proc.pix_cl_shift);
+ pix += ((n >> erts_proc.pix_cli_shift) & erts_proc.pix_cli_mask);
+ }
+ else {
+ n %= erts_proc.max;
+ pix = n % erts_proc.tab_cache_lines;
+ pix *= erts_proc.pix_per_cache_line;
+ pix += n / erts_proc.tab_cache_lines;
+ }
+ ASSERT(0 <= pix && pix < erts_proc.max);
+ return pix;
+}
+
+#endif
+
+#define internal_pid_index(x) erts_pid_data2ix(internal_pid_data((x)))
#define internal_pid_node_name(x) (internal_pid_node((x))->sysname)
#define external_pid_node_name(x) (external_pid_node((x))->sysname)
diff --git a/erts/emulator/beam/erl_node_tables.c b/erts/emulator/beam/erl_node_tables.c
index c7fd379367..649be3f454 100644
--- a/erts/emulator/beam/erl_node_tables.c
+++ b/erts/emulator/beam/erl_node_tables.c
@@ -1298,21 +1298,22 @@ setup_reference_table(void)
UnUseTmpHeapNoproc(3);
/* Insert all processes */
- for (i = 0; i < erts_max_processes; i++)
- if (process_tab[i]) {
+ for (i = 0; i < erts_max_processes; i++) {
+ Process *proc = erts_pix2proc(i);
+ if (proc) {
ErlMessage *msg;
/* Insert Heap */
- insert_offheap(&(process_tab[i]->off_heap),
+ insert_offheap(&(proc->off_heap),
HEAP_REF,
- process_tab[i]->id);
+ proc->id);
/* Insert message buffers */
- for(hfp = process_tab[i]->mbuf; hfp; hfp = hfp->next)
+ for(hfp = proc->mbuf; hfp; hfp = hfp->next)
insert_offheap(&(hfp->off_heap),
HEAP_REF,
- process_tab[i]->id);
+ proc->id);
/* Insert msg msg buffers */
- for (msg = process_tab[i]->msg.first; msg; msg = msg->next) {
+ for (msg = proc->msg.first; msg; msg = msg->next) {
ErlHeapFragment *heap_frag = NULL;
if (msg->data.attached) {
if (is_value(ERL_MESSAGE_TERM(msg)))
@@ -1320,7 +1321,7 @@ setup_reference_table(void)
else {
if (msg->data.dist_ext->dep)
insert_dist_entry(msg->data.dist_ext->dep,
- HEAP_REF, process_tab[i]->id, 0);
+ HEAP_REF, proc->id, 0);
if (is_not_nil(ERL_MESSAGE_TOKEN(msg)))
heap_frag = erts_dist_ext_trailer(msg->data.dist_ext);
}
@@ -1328,10 +1329,10 @@ setup_reference_table(void)
if (heap_frag)
insert_offheap(&(heap_frag->off_heap),
HEAP_REF,
- process_tab[i]->id);
+ proc->id);
}
#ifdef ERTS_SMP
- for (msg = process_tab[i]->msg_inq.first; msg; msg = msg->next) {
+ for (msg = proc->msg_inq.first; msg; msg = msg->next) {
ErlHeapFragment *heap_frag = NULL;
if (msg->data.attached) {
if (is_value(ERL_MESSAGE_TERM(msg)))
@@ -1339,7 +1340,7 @@ setup_reference_table(void)
else {
if (msg->data.dist_ext->dep)
insert_dist_entry(msg->data.dist_ext->dep,
- HEAP_REF, process_tab[i]->id, 0);
+ HEAP_REF, proc->id, 0);
if (is_not_nil(ERL_MESSAGE_TOKEN(msg)))
heap_frag = erts_dist_ext_trailer(msg->data.dist_ext);
}
@@ -1347,21 +1348,22 @@ setup_reference_table(void)
if (heap_frag)
insert_offheap(&(heap_frag->off_heap),
HEAP_REF,
- process_tab[i]->id);
+ proc->id);
}
#endif
/* Insert links */
- if(process_tab[i]->nlinks)
- insert_links(process_tab[i]->nlinks, process_tab[i]->id);
- if(process_tab[i]->monitors)
- insert_monitors(process_tab[i]->monitors, process_tab[i]->id);
+ if(proc->nlinks)
+ insert_links(proc->nlinks, proc->id);
+ if(proc->monitors)
+ insert_monitors(proc->monitors, proc->id);
/* Insert controller */
{
- DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(process_tab[i]);
+ DistEntry *dep = ERTS_PROC_GET_DIST_ENTRY(proc);
if (dep)
- insert_dist_entry(dep, CTRL_REF, process_tab[i]->id, 0);
+ insert_dist_entry(dep, CTRL_REF, proc->id, 0);
}
}
+ }
#ifdef ERTS_SMP
erts_foreach_sys_msg_in_q(insert_sys_msg);
diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c
index 0f1a0d441a..86454fe1fa 100644
--- a/erts/emulator/beam/erl_port_task.c
+++ b/erts/emulator/beam/erl_port_task.c
@@ -56,12 +56,6 @@
#define ERTS_PORT_IS_IN_RUNQ(RQ, P) \
((P)->sched.next || (P)->sched.prev || (RQ)->ports.start == (P))
-#define ERTS_PORT_NOT_IN_RUNQ(P) \
-do { \
- (P)->sched.prev = NULL; \
- (P)->sched.next = NULL; \
-} while (0)
-
#ifdef USE_VM_PROBES
#define DTRACE_DRIVER(PROBE_NAME, PP) \
if (DTRACE_ENABLED(driver_ready_input)) { \
@@ -167,7 +161,7 @@ enqueue_port(ErtsRunQueue *runq, Port *pp)
{
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
pp->sched.next = NULL;
- pp->sched.prev = runq->ports.end;
+ pp->sched.in_runq = 1;
if (runq->ports.end) {
ASSERT(runq->ports.start);
runq->ports.end->sched.next = pp;
@@ -177,39 +171,10 @@ enqueue_port(ErtsRunQueue *runq, Port *pp)
runq->ports.start = pp;
}
- runq->ports.info.len++;
- if (runq->ports.info.max_len < runq->ports.info.len)
- runq->ports.info.max_len = runq->ports.info.len;
- runq->len++;
- if (runq->max_len < runq->len)
- runq->max_len = runq->len;
runq->ports.end = pp;
ASSERT(runq->ports.start && runq->ports.end);
-}
-static ERTS_INLINE void
-dequeue_port(ErtsRunQueue *runq, Port *pp)
-{
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- if (pp->sched.next)
- pp->sched.next->sched.prev = pp->sched.prev;
- else {
- ASSERT(runq->ports.end == pp);
- runq->ports.end = pp->sched.prev;
- }
- if (pp->sched.prev)
- pp->sched.prev->sched.next = pp->sched.next;
- else {
- ASSERT(runq->ports.start == pp);
- runq->ports.start = pp->sched.next;
- }
-
- ASSERT(runq->ports.info.len > 0);
- runq->ports.info.len--;
- ASSERT(runq->len > 0);
- runq->len--;
- ASSERT(runq->ports.start || !runq->ports.end);
- ASSERT(runq->ports.end || !runq->ports.start);
+ erts_smp_inc_runq_len(runq, &runq->ports.info, ERTS_PORT_PRIO_LEVEL);
}
static ERTS_INLINE Port *
@@ -222,16 +187,11 @@ pop_port(ErtsRunQueue *runq)
}
else {
runq->ports.start = runq->ports.start->sched.next;
- if (runq->ports.start)
- runq->ports.start->sched.prev = NULL;
- else {
+ if (!runq->ports.start) {
ASSERT(runq->ports.end == pp);
runq->ports.end = NULL;
}
- ASSERT(runq->ports.info.len > 0);
- runq->ports.info.len--;
- ASSERT(runq->len > 0);
- runq->len--;
+ erts_smp_dec_runq_len(runq, &runq->ports.info, ERTS_PORT_PRIO_LEVEL);
}
ASSERT(runq->ports.start || !runq->ports.end);
@@ -285,7 +245,7 @@ check_port_queue(ErtsRunQueue *runq, Port *chk_pp, int inq)
}
ASSERT(no_forward == no_backward);
}
- ASSERT(no_forward == runq->ports.info.len);
+ ASSERT(no_forward == RUNQ_READ_LEN(&runq->ports.info.len));
if (chk_pp) {
if (chk_pp->sched.taskq || chk_pp->sched.exe_taskq) {
ASSERT(chk_pp->sched.taskq != chk_pp->sched.exe_taskq);
@@ -467,10 +427,11 @@ erts_port_task_abort(Eterm id, ErtsPortTaskHandle *pthp)
ErtsPortTaskQueue *ptqp;
ErtsPortTask *ptp;
Port *pp;
- int port_is_dequeued = 0;
pp = &erts_port[internal_port_index(id)];
runq = erts_port_runq(pp);
+ if (!runq)
+ return 1;
ptp = handle2task(pthp);
@@ -505,22 +466,12 @@ erts_port_task_abort(Eterm id, ErtsPortTaskHandle *pthp)
if (ptqp->first || pp->sched.taskq != ptqp)
ptqp = NULL;
- else {
+ else
pp->sched.taskq = NULL;
- if (!pp->sched.exe_taskq) {
- dequeue_port(runq, pp);
- ERTS_PORT_NOT_IN_RUNQ(pp);
- port_is_dequeued = 1;
- }
- }
ERTS_PT_CHK_PRES_PORTQ(runq, pp);
erts_smp_runq_unlock(runq);
-
- if (erts_system_profile_flags.runnable_ports && port_is_dequeued) {
- profile_runnable_port(pp, am_inactive);
- }
port_task_free(ptp);
if (ptqp)
@@ -575,7 +526,7 @@ erts_port_task_schedule(Eterm id,
if (!pp->sched.taskq) {
pp->sched.taskq = port_taskq_init(port_taskq_alloc(), pp);
- enq_port = !pp->sched.exe_taskq;
+ enq_port = !pp->sched.in_runq && !pp->sched.exe_taskq;
}
#ifdef ERTS_SMP
@@ -585,13 +536,13 @@ erts_port_task_schedule(Eterm id,
/* Port emigrated ... */
erts_smp_atomic_set_nob(&pp->run_queue, (erts_aint_t) xrunq);
erts_smp_runq_unlock(runq);
- runq = xrunq;
+ runq = erts_port_runq(pp);
+ if (!runq)
+ return -1;
}
}
#endif
- ASSERT(!enq_port || !(runq->flags & ERTS_RUNQ_FLG_SUSPENDED));
-
ASSERT(pp->sched.taskq);
ASSERT(ptp);
@@ -633,7 +584,7 @@ erts_port_task_schedule(Eterm id,
#elif defined(DEBUG)
if (!enq_port && !pp->sched.exe_taskq) {
/* We should be in port run q */
- ASSERT(pp->sched.prev || runq->ports.start == pp);
+ ASSERT(pp->sched.in_runq);
}
#endif
#endif
@@ -661,63 +612,54 @@ void
erts_port_task_free_port(Port *pp)
{
ErtsRunQueue *runq;
- int port_is_dequeued = 0;
+ ErtsPortTaskQueue *ptqp;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(pp));
ASSERT(!(pp->status & ERTS_PORT_SFLGS_DEAD));
runq = erts_port_runq(pp);
ASSERT(runq);
ERTS_PT_CHK_PRES_PORTQ(runq, pp);
- if (pp->sched.exe_taskq) {
+ ptqp = pp->sched.exe_taskq;
+ if (ptqp) {
/* I (this thread) am currently executing this port, free it
when scheduled out... */
- ErtsPortTask *ptp = port_task_alloc();
+ ErtsPortTask *ptp;
+ enqueue_free:
+ ptp = port_task_alloc();
erts_smp_port_state_lock(pp);
pp->status &= ~ERTS_PORT_SFLG_CLOSING;
pp->status |= ERTS_PORT_SFLG_FREE_SCHEDULED;
erts_may_save_closed_port(pp);
erts_smp_port_state_unlock(pp);
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 1);
+ ERTS_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 1);
ptp->type = ERTS_PORT_TASK_FREE;
ptp->event = (ErlDrvEvent) -1;
ptp->event_data = NULL;
set_handle(ptp, NULL);
- push_task(pp->sched.exe_taskq, ptp);
+ push_task(ptqp, ptp);
ERTS_PT_CHK_PRES_PORTQ(runq, pp);
erts_smp_runq_unlock(runq);
}
else {
- ErtsPortTaskQueue *ptqp = pp->sched.taskq;
- if (ptqp) {
- dequeue_port(runq, pp);
- ERTS_PORT_NOT_IN_RUNQ(pp);
- port_is_dequeued = 1;
+ if (pp->sched.in_runq) {
+ ptqp = pp->sched.taskq;
+ if (!ptqp)
+ pp->sched.taskq = ptqp = port_taskq_init(port_taskq_alloc(), pp);
+ goto enqueue_free;
}
+ ASSERT(!pp->sched.taskq);
erts_smp_port_state_lock(pp);
pp->status &= ~ERTS_PORT_SFLG_CLOSING;
pp->status |= ERTS_PORT_SFLG_FREE_SCHEDULED;
erts_may_save_closed_port(pp);
erts_smp_port_state_unlock(pp);
-#ifdef ERTS_SMP
erts_smp_atomic_dec_nob(&pp->refc); /* Not alive */
-#endif
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 0); /* Lock */
+ ERTS_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 0); /* Lock */
handle_remaining_tasks(runq, pp); /* May release runq lock */
ASSERT(!pp->sched.exe_taskq && (!ptqp || !ptqp->first));
pp->sched.taskq = NULL;
ERTS_PT_CHK_PRES_PORTQ(runq, pp);
-#ifndef ERTS_SMP
- ASSERT(pp->status & ERTS_PORT_SFLG_PORT_DEBUG);
- erts_port_status_set(pp, ERTS_PORT_SFLG_FREE);
-#endif
erts_smp_runq_unlock(runq);
-
- if (erts_system_profile_flags.runnable_ports && port_is_dequeued) {
- profile_runnable_port(pp, am_inactive);
- }
-
- if (ptqp)
- port_taskq_free(ptqp);
}
}
@@ -738,7 +680,6 @@ typedef struct {
int
erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
{
- int port_was_enqueued = 0;
Port *pp;
ErtsPortTaskQueue *ptqp;
ErtsPortTask *ptp;
@@ -757,11 +698,18 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
goto done;
}
- ERTS_PORT_NOT_IN_RUNQ(pp);
+ ASSERT(pp->sched.in_runq);
+ pp->sched.in_runq = 0;
+ if (!pp->sched.taskq) {
+ if (erts_system_profile_flags.runnable_ports)
+ profile_runnable_port(pp, am_inactive);
+ res = (erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks)
+ != (erts_aint_t) 0);
+ goto done;
+ }
*curr_port_pp = pp;
- ASSERT(pp->sched.taskq);
ASSERT(pp->sched.taskq->first);
ptqp = pp->sched.taskq;
pp->sched.taskq = NULL;
@@ -823,12 +771,8 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
handle_remaining_tasks(runq, pp);
ASSERT(!ptqp->first
&& (!pp->sched.taskq || !pp->sched.taskq->first));
-#ifdef ERTS_SMP
erts_smp_atomic_dec_nob(&pp->refc); /* Not alive */
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 0); /* Lock */
-#else
- erts_port_status_bor_set(pp, ERTS_PORT_SFLG_FREE);
-#endif
+ ERTS_LC_ASSERT(erts_smp_atomic_read_nob(&pp->refc) > 0); /* Lock */
port_task_free(ptp);
if (pp->sched.taskq)
@@ -918,6 +862,8 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
if (!pp->sched.taskq) {
ASSERT(pp->sched.exe_taskq);
pp->sched.exe_taskq = NULL;
+ if (erts_system_profile_flags.runnable_ports)
+ profile_runnable_port(pp, am_inactive);
}
else {
#ifdef ERTS_SMP
@@ -940,14 +886,20 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
else {
/* Port emigrated ... */
erts_smp_atomic_set_nob(&pp->run_queue, (erts_aint_t) xrunq);
- enqueue_port(xrunq, pp);
- ASSERT(pp->sched.exe_taskq);
- pp->sched.exe_taskq = NULL;
- erts_smp_runq_unlock(xrunq);
- erts_smp_notify_inc_runq(xrunq);
+ erts_smp_runq_unlock(runq);
+
+ xrunq = erts_port_runq(pp);
+ if (xrunq) {
+ enqueue_port(xrunq, pp);
+ ASSERT(pp->sched.exe_taskq);
+ pp->sched.exe_taskq = NULL;
+ erts_smp_runq_unlock(xrunq);
+ erts_smp_notify_inc_runq(xrunq);
+ }
+
+ erts_smp_runq_lock(runq);
}
#endif
- port_was_enqueued = 1;
}
res = (erts_smp_atomic_read_nob(&erts_port_task_outstanding_io_tasks)
@@ -957,10 +909,6 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
port_taskq_free(ptqp);
- if (erts_system_profile_flags.runnable_ports && (port_was_enqueued != 1)) {
- profile_runnable_port(pp, am_inactive);
- }
-
/* trace port scheduling, out */
if (IS_TRACED_FL(pp, F_TRACE_SCHED_PORTS)) {
trace_sched_ports(pp, am_out);
@@ -1049,63 +997,33 @@ erts_port_is_scheduled(Port *pp)
{
int res;
ErtsRunQueue *runq = erts_port_runq(pp);
+ if (!runq)
+ return 0;
res = pp->sched.taskq || pp->sched.exe_taskq;
erts_smp_runq_unlock(runq);
return res;
}
#ifdef ERTS_SMP
+void
+erts_enqueue_port(ErtsRunQueue *rq, Port *pp)
+{
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+ ASSERT(rq == (ErtsRunQueue *) erts_smp_atomic_read_nob(&pp->run_queue));
+ ASSERT(pp->sched.in_runq);
+ enqueue_port(rq, pp);
+}
-ErtsMigrateResult
-erts_port_migrate(Port *prt, int *prt_locked,
- ErtsRunQueue *from_rq, int *from_locked,
- ErtsRunQueue *to_rq, int *to_locked)
+Port *
+erts_dequeue_port(ErtsRunQueue *rq)
{
- ERTS_SMP_LC_ASSERT(*from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- if (!*from_locked || !*to_locked) {
- if (from_rq < to_rq) {
- if (!*to_locked) {
- if (!*from_locked)
- erts_smp_runq_lock(from_rq);
- erts_smp_runq_lock(to_rq);
- }
- else if (erts_smp_runq_trylock(from_rq) == EBUSY) {
- erts_smp_runq_unlock(to_rq);
- erts_smp_runq_lock(from_rq);
- erts_smp_runq_lock(to_rq);
- }
- }
- else {
- if (!*from_locked) {
- if (!*to_locked)
- erts_smp_runq_lock(to_rq);
- erts_smp_runq_lock(from_rq);
- }
- else if (erts_smp_runq_trylock(to_rq) == EBUSY) {
- erts_smp_runq_unlock(from_rq);
- erts_smp_runq_lock(to_rq);
- erts_smp_runq_lock(from_rq);
- }
- }
- *to_locked = *from_locked = 1;
- }
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- /* Refuse to migrate to a suspended run queue */
- if (to_rq->flags & ERTS_RUNQ_FLG_SUSPENDED)
- return ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED;
- if (from_rq != (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue))
- return ERTS_MIGRATE_FAILED_RUNQ_CHANGED;
- if (!ERTS_PORT_IS_IN_RUNQ(from_rq, prt))
- return ERTS_MIGRATE_FAILED_NOT_IN_RUNQ;
- dequeue_port(from_rq, prt);
- erts_smp_atomic_set_nob(&prt->run_queue, (erts_aint_t) to_rq);
- enqueue_port(to_rq, prt);
- return ERTS_MIGRATE_SUCCESS;
+ Port *pp;
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+ pp = pop_port(rq);
+ ASSERT(!pp
+ || rq == (ErtsRunQueue *) erts_smp_atomic_read_nob(&pp->run_queue));
+ ASSERT(!pp || pp->sched.in_runq);
+ return pp;
}
#endif
diff --git a/erts/emulator/beam/erl_port_task.h b/erts/emulator/beam/erl_port_task.h
index d7104e1143..fd88b1c1ff 100644
--- a/erts/emulator/beam/erl_port_task.h
+++ b/erts/emulator/beam/erl_port_task.h
@@ -62,7 +62,7 @@ typedef struct ErtsPortTaskQueue_ ErtsPortTaskQueue;
typedef struct {
Port *next;
- Port *prev;
+ int in_runq;
ErtsPortTaskQueue *taskq;
ErtsPortTaskQueue *exe_taskq;
} ErtsPortTaskSched;
@@ -92,7 +92,7 @@ ERTS_GLB_INLINE void
erts_port_task_init_sched(ErtsPortTaskSched *ptsp)
{
ptsp->next = NULL;
- ptsp->prev = NULL;
+ ptsp->in_runq = 0;
ptsp->taskq = NULL;
ptsp->exe_taskq = NULL;
}
@@ -123,13 +123,10 @@ int erts_port_task_schedule(Eterm,
ErlDrvEventData);
void erts_port_task_free_port(Port *);
int erts_port_is_scheduled(Port *);
+
#ifdef ERTS_SMP
-ErtsMigrateResult erts_port_migrate(Port *,
- int *,
- ErtsRunQueue *,
- int *,
- ErtsRunQueue *,
- int *);
+void erts_enqueue_port(ErtsRunQueue *rq, Port *pp);
+Port *erts_dequeue_port(ErtsRunQueue *rq);
#endif
#undef ERTS_INCLUDE_SCHEDULER_INTERNALS
#endif /* ERL_PORT_TASK_H__ */
diff --git a/erts/emulator/beam/erl_printf_term.c b/erts/emulator/beam/erl_printf_term.c
index 34da9cab84..2320b64295 100644
--- a/erts/emulator/beam/erl_printf_term.c
+++ b/erts/emulator/beam/erl_printf_term.c
@@ -437,7 +437,10 @@ print_term(fmtfn_t fn, void* arg, Eterm obj, long *dcount,
}
break;
case BINARY_DEF:
- {
+ if (header_is_bin_matchstate(*boxed_val(wobj))) {
+ PRINT_STRING(res, fn, arg, "#MatchState");
+ }
+ else {
ProcBin* pb = (ProcBin *) binary_val(wobj);
if (pb->size == 1)
PRINT_STRING(res, fn, arg, "<<1 byte>>");
diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c
index d2fa111b80..e07c9ae2b0 100644
--- a/erts/emulator/beam/erl_process.c
+++ b/erts/emulator/beam/erl_process.c
@@ -94,34 +94,194 @@
#define HIGH_BIT (1 << PRIORITY_HIGH)
#define NORMAL_BIT (1 << PRIORITY_NORMAL)
#define LOW_BIT (1 << PRIORITY_LOW)
+#define PORT_BIT (1 << ERTS_PORT_PRIO_LEVEL)
-#define ERTS_MAYBE_SAVE_TERMINATING_PROCESS(P) \
-do { \
- ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx)); \
- if (saved_term_procs.end) \
- save_terminating_process((P)); \
-} while (0)
+#define ERTS_EMPTY_RUNQ(RQ) \
+ ((ERTS_RUNQ_FLGS_GET_NOB((RQ)) & ERTS_RUNQ_FLGS_QMASK) == 0 \
+ && (RQ)->misc.start == NULL)
-#define ERTS_EMPTY_RUNQ(RQ) \
- ((RQ)->len == 0 && (RQ)->misc.start == NULL)
+#undef RUNQ_READ_RQ
+#undef RUNQ_SET_RQ
+#define RUNQ_READ_RQ(X) ((ErtsRunQueue *) erts_smp_atomic_read_nob((X)))
+#define RUNQ_SET_RQ(X, RQ) erts_smp_atomic_set_nob((X), (erts_aint_t) (RQ))
+
+#ifdef DEBUG
+# if defined(ARCH_64) && !HALFWORD_HEAP
+# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \
+ (RUNQ_SET_RQ((RQP), (0xdeadbeefdead0003LL | ((N) << 4)))
+# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \
+do { \
+ ASSERT((RQP) != NULL); \
+ ASSERT(((((Uint) (RQP)) & ((Uint) 0x3))) == ((Uint) 0)); \
+ ASSERT((((Uint) (RQP)) & ~((Uint) 0xffff)) != ((Uint) 0xdeadbeefdead0000LL));\
+} while (0)
+# else
+# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \
+ (RUNQ_SET_RQ((RQP), (0xdead0003 | ((N) << 4))))
+# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \
+do { \
+ ASSERT((RQP) != NULL); \
+ ASSERT(((((UWord) (RQP)) & ((UWord) 1))) == ((UWord) 0)); \
+ ASSERT((((UWord) (RQP)) & ~((UWord) 0xffff)) != ((UWord) 0xdead0000)); \
+} while (0)
+# endif
+#else
+# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N)
+# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP)
+#endif
#define ERTS_EMPTY_RUNQ_PORTS(RQ) \
- ((RQ)->ports.info.len == 0 && (RQ)->misc.start == NULL)
+ (RUNQ_READ_LEN(&(RQ)->ports.info.len) == 0 && (RQ)->misc.start == NULL)
extern BeamInstr beam_apply[];
extern BeamInstr beam_exit[];
extern BeamInstr beam_continue_exit[];
-static Sint p_last;
-static Sint p_next;
-static Sint p_serial;
-static Uint p_serial_mask;
-static Uint p_serial_shift;
+#ifdef ARCH_32
+
+union {
+ erts_smp_dw_atomic_t pid_data;
+ char align[ERTS_CACHE_LINE_SIZE];
+} last erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+
+static ERTS_INLINE Uint64
+dw_aint_to_uint64(erts_dw_aint_t *dw)
+{
+#ifdef ETHR_SU_DW_NAINT_T__
+ return (Uint64) dw->dw_sint;
+#else
+ Uint64 res;
+ res = (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_HIGH_WORD]);
+ res <<= 32;
+ res |= (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_LOW_WORD]);
+ return res;
+#endif
+}
+
+static void
+unint64_to_dw_aint(erts_dw_aint_t *dw, Uint64 val)
+{
+#ifdef ETHR_SU_DW_NAINT_T__
+ dw->dw_sint = (ETHR_SU_DW_NAINT_T__) val;
+#else
+ dw->sint[ERTS_DW_AINT_LOW_WORD] = (erts_aint_t) (val & 0xffffffff);
+ dw->sint[ERTS_DW_AINT_HIGH_WORD] = (erts_aint_t) ((val >> 32) & 0xffffffff);
+#endif
+}
+
+static ERTS_INLINE void
+last_pid_data_init_nob(Uint64 val)
+{
+ erts_dw_aint_t dw;
+ unint64_to_dw_aint(&dw, val);
+ erts_smp_dw_atomic_init_nob(&last.pid_data, &dw);
+}
+
+static ERTS_INLINE void
+last_pid_data_set_relb(Uint64 val)
+{
+ erts_dw_aint_t dw;
+ unint64_to_dw_aint(&dw, val);
+ erts_smp_dw_atomic_set_relb(&last.pid_data, &dw);
+}
+
+static ERTS_INLINE Uint64
+last_pid_data_read_nob(void)
+{
+ erts_dw_aint_t dw;
+ erts_smp_dw_atomic_read_nob(&last.pid_data, &dw);
+ return dw_aint_to_uint64(&dw);
+}
+
+static ERTS_INLINE Uint64
+last_pid_data_read_acqb(void)
+{
+ erts_dw_aint_t dw;
+ erts_smp_dw_atomic_read_acqb(&last.pid_data, &dw);
+ return dw_aint_to_uint64(&dw);
+}
+
+static ERTS_INLINE Uint64
+last_pid_data_cmpxchg_relb(Uint64 new, Uint64 exp)
+{
+ erts_dw_aint_t dw_new, dw_xchg;
+
+ unint64_to_dw_aint(&dw_new, new);
+ unint64_to_dw_aint(&dw_xchg, exp);
+
+ if (erts_smp_dw_atomic_cmpxchg_relb(&last.pid_data, &dw_new, &dw_xchg))
+ return exp;
+ else
+ return dw_aint_to_uint64(&dw_xchg);
+}
+
+#elif defined(ARCH_64)
+
+union {
+ erts_smp_atomic_t pid_data;
+ char align[ERTS_CACHE_LINE_SIZE];
+} last erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+static ERTS_INLINE void
+last_pid_data_init_nob(Uint64 val)
+{
+ erts_smp_atomic_init_nob(&last.pid_data, (erts_aint_t) val);
+}
+
+static ERTS_INLINE void
+last_pid_data_set_relb(Uint64 val)
+{
+ erts_smp_atomic_set_relb(&last.pid_data, (erts_aint_t) val);
+}
+
+static ERTS_INLINE Uint64
+last_pid_data_read_nob(void)
+{
+ return (Uint64) erts_smp_atomic_read_nob(&last.pid_data);
+}
+
+static ERTS_INLINE Uint64
+last_pid_data_read_acqb(void)
+{
+ return (Uint64) erts_smp_atomic_read_acqb(&last.pid_data);
+}
+
+static ERTS_INLINE Uint64
+last_pid_data_cmpxchg_relb(Uint64 new, Uint64 exp)
+{
+ return (Uint64) erts_smp_atomic_cmpxchg_relb(&last.pid_data,
+ (erts_aint_t) new,
+ (erts_aint_t) exp);
+}
+
+#else
+# error "Not 64-bit, nor 32-bit architecture..."
+#endif
+
+static ERTS_INLINE int
+last_pid_data_cmp(Uint64 lpd1, Uint64 lpd2)
+{
+ Uint64 lpd1_wrap;
+
+ if (lpd1 == lpd2)
+ return 0;
+
+ lpd1_wrap = lpd1 + (((Uint64) 1) << 63);
+
+ if (lpd1 < lpd1_wrap)
+ return (lpd1 < lpd2 && lpd2 < lpd1_wrap) ? -1 : 1;
+ else
+ return (lpd1_wrap <= lpd2 && lpd2 < lpd1) ? 1 : -1;
+}
+
+
+#define ERTS_PID_DATA_MASK__ ((1 << _PID_DATA_SIZE) - 1)
int erts_sched_compact_load;
Uint erts_no_schedulers;
-Uint erts_max_processes = ERTS_DEFAULT_MAX_PROCESSES;
-Uint erts_process_tab_index_mask;
+
+ErtsProcTab erts_proc erts_align_attribute(ERTS_CACHE_LINE_SIZE);
int erts_sched_thread_suggested_stack_size = -1;
@@ -188,7 +348,7 @@ static struct {
struct {
int active_runqs;
int reds;
- int max_len;
+ erts_aint32_t max_len;
} prev_rise;
Uint n;
} balance_info;
@@ -208,7 +368,7 @@ erts_sched_stat_t erts_sched_stat;
static erts_tsd_key_t sched_data_key;
#endif
-static erts_smp_mtx_t proc_tab_mtx;
+erts_smp_rwmtx_t erts_proc_tab_rwmtx;
static erts_smp_atomic32_t function_calls;
@@ -231,7 +391,6 @@ typedef union {
static ErtsAlignedSchedulerSleepInfo *aligned_sched_sleep_info;
-Process** process_tab;
static Uint last_reductions;
static Uint last_exact_reductions;
Uint erts_default_process_flags;
@@ -257,11 +416,11 @@ struct ErtsTermProcElement_ {
union {
struct {
Eterm pid;
- SysTimeval spawned;
- SysTimeval exited;
+ Uint64 spawned;
+ Uint64 exited;
} process;
struct {
- SysTimeval time;
+ Uint64 interval;
} bif_invocation;
} u;
};
@@ -369,6 +528,10 @@ dbg_chk_aux_work_val(erts_aint32_t value)
#ifdef ERTS_SMP_SCHEDULERS_NEED_TO_CHECK_CHILDREN
valid |= ERTS_SSI_AUX_WORK_CHECK_CHILDREN;
#endif
+#ifdef ERTS_SMP
+ valid |= ERTS_SSI_AUX_WORK_CODE_IX_ACTIVATION;
+ valid |= ERTS_SSI_AUX_WORK_FINISH_BP;
+#endif
#ifdef ERTS_SSI_AUX_WORK_REAP_PORTS
valid |= ERTS_SSI_AUX_WORK_REAP_PORTS;
#endif
@@ -398,6 +561,53 @@ erts_smp_lc_runq_is_locked(ErtsRunQueue *runq)
}
#endif
+static erts_interval_t *proc_interval;
+
+static void
+proc_interval_init(void)
+{
+ proc_interval = erts_alloc_permanent_cache_aligned(
+ ERTS_ALC_T_PROC_INTERVAL,
+ sizeof(erts_interval_t));
+ erts_smp_interval_init(proc_interval);
+}
+
+static ERTS_INLINE Uint64
+get_proc_interval(void)
+{
+ return erts_smp_current_interval_nob(proc_interval);
+}
+
+static ERTS_INLINE Uint64
+ensure_later_proc_interval(Uint64 interval)
+{
+ return erts_smp_ensure_later_interval_nob(proc_interval, interval);
+}
+
+static ERTS_INLINE Uint64
+step_proc_interval(void)
+{
+ return erts_smp_step_interval_nob(proc_interval);
+}
+
+Uint64
+erts_get_proc_interval(void)
+{
+ return get_proc_interval();
+}
+
+Uint64
+erts_ensure_later_proc_interval(Uint64 interval)
+{
+ return ensure_later_proc_interval(interval);
+}
+
+Uint64
+erts_step_proc_interval(void)
+{
+ return step_proc_interval();
+}
+
void
erts_pre_init_process(void)
{
@@ -447,7 +657,16 @@ erts_pre_init_process(void)
void
erts_init_process(int ncpu)
{
- Uint proc_bits = ERTS_PROC_BITS;
+ int proc_tab_sz;
+ int max_proc_bits;
+ int proc_bits = ERTS_PROC_BITS;
+ erts_smp_atomic_t *proc_entry;
+ char *proc_tab_end;
+ erts_smp_rwmtx_opt_t proc_tab_rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
+ proc_tab_rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ;
+ proc_tab_rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED;
+
+ proc_interval_init();
#ifdef ERTS_SMP
erts_disable_proc_not_running_opt = 0;
@@ -458,23 +677,51 @@ erts_init_process(int ncpu)
erts_smp_atomic32_init_nob(&process_count, 0);
- if (erts_use_r9_pids_ports) {
+ if (erts_use_r9_pids_ports)
proc_bits = ERTS_R9_PROC_BITS;
- ASSERT(erts_max_processes <= (1 << ERTS_R9_PROC_BITS));
+
+ if (erts_proc.max > (1 << proc_bits))
+ erts_proc.max = 1 << proc_bits;
+
+ proc_tab_sz = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(erts_proc.max
+ * sizeof(erts_smp_atomic_t));
+ erts_proc.tab = erts_alloc(ERTS_ALC_T_PROC_TABLE, proc_tab_sz);
+ proc_tab_end = ((char *) erts_proc.tab) + proc_tab_sz;
+ proc_entry = erts_proc.tab;
+ while (proc_tab_end > ((char *) proc_entry)) {
+ erts_smp_atomic_init_nob(proc_entry, ERTS_AINT_NULL);
+ proc_entry++;
}
- process_tab = (Process**) erts_alloc(ERTS_ALC_T_PROC_TABLE,
- erts_max_processes*sizeof(Process*));
- sys_memzero(process_tab, erts_max_processes * sizeof(Process*));
+ erts_smp_rwmtx_init_opt(&erts_proc_tab_rwmtx,
+ &proc_tab_rwmtx_opts,
+ "proc_tab");
+ last_pid_data_init_nob(~((Uint64) 0));
- erts_smp_mtx_init(&proc_tab_mtx, "proc_tab");
- p_last = -1;
- p_next = 0;
- p_serial = 0;
+ max_proc_bits = erts_fit_in_bits_int32((Sint32) erts_proc.max - 1);
+
+ erts_proc.tab_cache_lines = proc_tab_sz/ERTS_CACHE_LINE_SIZE;
+ erts_proc.pix_per_cache_line = ERTS_CACHE_LINE_SIZE/sizeof(erts_smp_atomic_t);
+ if ((erts_proc.max & (erts_proc.max - 1))
+ | (erts_proc.pix_per_cache_line & (erts_proc.pix_per_cache_line - 1))) {
+ /*
+ * erts_proc.max or erts_proc.pix_per_cache_line
+ * not a power of 2 :(
+ */
+ erts_proc.pix_cl_mask = 0;
+ erts_proc.pix_cl_shift = 0;
+ erts_proc.pix_cli_mask = 0;
+ erts_proc.pix_cli_shift = 0;
+ }
+ else {
+ ASSERT((erts_proc.tab_cache_lines
+ & (erts_proc.tab_cache_lines - 1)) == 0);
+ erts_proc.pix_cl_mask = erts_proc.tab_cache_lines-1;
+ erts_proc.pix_cl_shift = erts_fit_in_bits_int32(erts_proc.pix_per_cache_line-1);
+ erts_proc.pix_cli_shift = erts_fit_in_bits_int32(erts_proc.pix_cl_mask);
+ erts_proc.pix_cli_mask = (1 << (max_proc_bits - erts_proc.pix_cli_shift)) - 1;
+ }
- p_serial_shift = erts_fit_in_bits(erts_max_processes - 1);
- p_serial_mask = ((~(~((Uint) 0) << proc_bits)) >> p_serial_shift);
- erts_process_tab_index_mask = ~(~((Uint) 0) << p_serial_shift);
last_reductions = 0;
last_exact_reductions = 0;
erts_default_process_flags = 0;
@@ -732,8 +979,9 @@ static ERTS_INLINE ErtsProcList *
proclist_create(Process *p)
{
ErtsProcList *plp = proclist_alloc();
+ ensure_later_proc_interval(p->started_interval);
plp->pid = p->id;
- plp->started = p->started;
+ plp->started_interval = p->started_interval;
return plp;
}
@@ -746,8 +994,7 @@ proclist_destroy(ErtsProcList *plp)
static ERTS_INLINE int
proclist_same(ErtsProcList *plp, Process *p)
{
- return (plp->pid == p->id
- && erts_cmp_timeval(&plp->started, &p->started) == 0);
+ return plp->pid == p->id && plp->started_interval == p->started_interval;
}
ErtsProcList *
@@ -1160,7 +1407,94 @@ handle_async_ready_clean(ErtsAuxWorkData *awdp,
}
}
+#endif /* ERTS_USE_ASYNC_READY_Q */
+
+#ifdef ERTS_SMP
+void
+erts_notify_code_ix_activation(Process* p, ErtsThrPrgrVal later)
+{
+ ErtsAuxWorkData* awdp = &p->scheduler_data->aux_work_data;
+ ASSERT(awdp->code_ix_activation.code_stager == NULL);
+ awdp->code_ix_activation.code_stager = p;
+ awdp->code_ix_activation.thr_prgr = later;
+ erts_smp_proc_inc_refc(p);
+ set_aux_work_flags_wakeup_relb(p->scheduler_data->ssi,
+ ERTS_SSI_AUX_WORK_CODE_IX_ACTIVATION);
+}
+
+static erts_aint32_t
+handle_code_ix_activation(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
+{
+ Process* p;
+ if (!erts_thr_progress_has_reached(awdp->code_ix_activation.thr_prgr)) {
+ return aux_work & ~ERTS_SSI_AUX_WORK_CODE_IX_ACTIVATION;
+ }
+ unset_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_CODE_IX_ACTIVATION);
+ p = awdp->code_ix_activation.code_stager;
+ ASSERT(p);
+#ifdef DEBUG
+ awdp->code_ix_activation.code_stager = NULL;
+#endif
+ erts_commit_staging_code_ix();
+ erts_release_code_write_permission();
+ erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
+ if (!ERTS_PROC_IS_EXITING(p)) {
+ erts_resume(p, ERTS_PROC_LOCK_STATUS);
+ }
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_proc_dec_refc(p);
+ return aux_work & ~ERTS_SSI_AUX_WORK_CODE_IX_ACTIVATION;
+}
+#endif /* ERTS_SMP */
+
+#ifdef ERTS_SMP
+void
+erts_notify_finish_breakpointing(Process* p)
+{
+ ErtsAuxWorkData* awdp = &p->scheduler_data->aux_work_data;
+
+ ASSERT(awdp->bp_ix_activation.stager == NULL);
+ awdp->bp_ix_activation.stager = p;
+ awdp->bp_ix_activation.thr_prgr = erts_thr_progress_later(awdp->esdp);
+ erts_thr_progress_wakeup(awdp->esdp, awdp->bp_ix_activation.thr_prgr);
+ erts_smp_proc_inc_refc(p);
+ set_aux_work_flags_wakeup_relb(p->scheduler_data->ssi,
+ ERTS_SSI_AUX_WORK_FINISH_BP);
+}
+
+static erts_aint32_t
+handle_finish_bp(ErtsAuxWorkData* awdp, erts_aint32_t aux_work)
+{
+ ErtsThrPrgrVal current = haw_thr_prgr_current(awdp);
+
+ if (!erts_thr_progress_has_reached_this(current,
+ awdp->bp_ix_activation.thr_prgr)) {
+ return aux_work & ~ERTS_SSI_AUX_WORK_FINISH_BP;
+ }
+ if (erts_finish_breakpointing()) { /* Not done */
+ /* Arrange for being called again */
+ awdp->bp_ix_activation.thr_prgr =
+ erts_thr_progress_later(awdp->esdp);
+ erts_thr_progress_wakeup(awdp->esdp, awdp->bp_ix_activation.thr_prgr);
+ } else { /* Done */
+ Process* p;
+
+ unset_aux_work_flags(awdp->ssi, ERTS_SSI_AUX_WORK_FINISH_BP);
+ p = awdp->bp_ix_activation.stager;
+#ifdef DEBUG
+ awdp->bp_ix_activation.stager = NULL;
#endif
+ erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
+ if (!ERTS_PROC_IS_EXITING(p)) {
+ erts_resume(p, ERTS_PROC_LOCK_STATUS);
+ }
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ erts_smp_proc_dec_refc(p);
+ erts_release_code_write_permission();
+ }
+ return aux_work & ~ERTS_SSI_AUX_WORK_FINISH_BP;
+}
+#endif /* ERTS_SMP */
static ERTS_INLINE erts_aint32_t
handle_fix_alloc(ErtsAuxWorkData *awdp, erts_aint32_t aux_work)
@@ -1525,9 +1859,19 @@ handle_aux_work(ErtsAuxWorkData *awdp, erts_aint32_t orig_aux_work, int waiting)
handle_mseg_cache_check);
#endif
+#ifdef ERTS_SMP
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_CODE_IX_ACTIVATION,
+ handle_code_ix_activation);
+#endif
+
HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_REAP_PORTS,
handle_reap_ports);
+#ifdef ERTS_SMP
+ HANDLE_AUX_WORK(ERTS_SSI_AUX_WORK_FINISH_BP,
+ handle_finish_bp);
+#endif
+
ERTS_DBG_CHK_AUX_WORK_VAL(aux_work);
#ifdef ERTS_SMP
@@ -1686,8 +2030,8 @@ sched_waiting_sys(Uint no, ErtsRunQueue *rq)
{
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
ASSERT(rq->waiting >= 0);
- rq->flags |= (ERTS_RUNQ_FLG_OUT_OF_WORK
- | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK);
+ ERTS_RUNQ_FLGS_SET(rq, (ERTS_RUNQ_FLG_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK));
rq->waiting++;
rq->waiting *= -1;
rq->woken = 0;
@@ -1763,8 +2107,8 @@ static ERTS_INLINE void
sched_waiting(Uint no, ErtsRunQueue *rq)
{
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- rq->flags |= (ERTS_RUNQ_FLG_OUT_OF_WORK
- | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK);
+ ERTS_RUNQ_FLGS_SET(rq, (ERTS_RUNQ_FLG_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK));
if (rq->waiting < 0)
rq->waiting--;
else
@@ -1796,9 +2140,8 @@ ongoing_multi_scheduling_block(void)
static ERTS_INLINE void
empty_runq(ErtsRunQueue *rq)
{
- erts_aint32_t oifls = erts_smp_atomic32_read_band_nob(&rq->info_flags,
- ~ERTS_RUNQ_IFLG_NONEMPTY);
- if (oifls & ERTS_RUNQ_IFLG_NONEMPTY) {
+ Uint32 old_flags = ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_NONEMPTY|ERTS_RUNQ_FLG_PROTECTED);
+ if (old_flags & ERTS_RUNQ_FLG_NONEMPTY) {
#ifdef DEBUG
erts_aint32_t empty = erts_smp_atomic32_read_nob(&no_empty_run_queues);
/*
@@ -1814,9 +2157,8 @@ empty_runq(ErtsRunQueue *rq)
static ERTS_INLINE void
non_empty_runq(ErtsRunQueue *rq)
{
- erts_aint32_t oifls = erts_smp_atomic32_read_bor_nob(&rq->info_flags,
- ERTS_RUNQ_IFLG_NONEMPTY);
- if (!(oifls & ERTS_RUNQ_IFLG_NONEMPTY)) {
+ Uint32 old_flags = ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_NONEMPTY);
+ if (!(old_flags & ERTS_RUNQ_FLG_NONEMPTY)) {
#ifdef DEBUG
erts_aint32_t empty = erts_smp_atomic32_read_nob(&no_empty_run_queues);
/*
@@ -2431,19 +2773,16 @@ try_inc_no_active_runqs(int active)
static ERTS_INLINE int
chk_wake_sched(ErtsRunQueue *crq, int ix, int activate)
{
- erts_aint32_t iflgs;
+ Uint32 flags;
ErtsRunQueue *wrq;
if (crq->ix == ix)
return 0;
wrq = ERTS_RUNQ_IX(ix);
- iflgs = erts_smp_atomic32_read_nob(&wrq->info_flags);
- if (!(iflgs & (ERTS_RUNQ_IFLG_SUSPENDED|ERTS_RUNQ_IFLG_NONEMPTY))) {
+ flags = ERTS_RUNQ_FLGS_GET(wrq);
+ if (!(flags & (ERTS_RUNQ_FLG_SUSPENDED|ERTS_RUNQ_FLG_NONEMPTY))) {
if (activate) {
- if (try_inc_no_active_runqs(ix+1)) {
- erts_smp_xrunq_lock(crq, wrq);
- wrq->flags &= ~ERTS_RUNQ_FLG_INACTIVE;
- erts_smp_xrunq_unlock(crq, wrq);
- }
+ if (try_inc_no_active_runqs(ix+1))
+ ERTS_RUNQ_FLGS_UNSET(wrq, ERTS_RUNQ_FLG_INACTIVE);
}
wake_scheduler(wrq, 0);
return 1;
@@ -2510,9 +2849,7 @@ erts_sched_notify_check_cpu_bind(void)
int ix;
for (ix = 0; ix < erts_no_run_queues; ix++) {
ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- rq->flags |= ERTS_RUNQ_FLG_CHK_CPU_BIND;
- erts_smp_runq_unlock(rq);
+ ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_CHK_CPU_BIND);
wake_scheduler(rq, 0);
}
#else
@@ -2521,409 +2858,547 @@ erts_sched_notify_check_cpu_bind(void)
}
-#ifdef ERTS_SMP
+static ERTS_INLINE void
+enqueue_process(ErtsRunQueue *runq, int prio, Process *p)
+{
+ ErtsRunPrioQueue *rpq;
-ErtsRunQueue *
-erts_prepare_emigrate(ErtsRunQueue *c_rq, ErtsRunQueueInfo *c_rqi, int prio)
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
+
+ erts_smp_inc_runq_len(runq, &runq->procs.prio_info[prio], prio);
+
+ if (prio == PRIORITY_LOW) {
+ p->schedule_count = RESCHEDULE_LOW;
+ rpq = &runq->procs.prio[PRIORITY_NORMAL];
+ }
+ else {
+ p->schedule_count = 1;
+ rpq = &runq->procs.prio[prio];
+ }
+
+ p->next = NULL;
+ if (rpq->last)
+ rpq->last->next = p;
+ else
+ rpq->first = p;
+ rpq->last = p;
+}
+
+
+static ERTS_INLINE void
+unqueue_process(ErtsRunQueue *runq,
+ ErtsRunPrioQueue *rpq,
+ ErtsRunQueueInfo *rqi,
+ int prio,
+ Process *prev_proc,
+ Process *proc)
{
- ASSERT(ERTS_CHK_RUNQ_FLG_EMIGRATE(c_rq->flags, prio));
- ASSERT(ERTS_CHK_RUNQ_FLG_EVACUATE(c_rq->flags, prio)
- || c_rqi->len >= c_rqi->migrate.limit.this);
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- while (1) {
- ErtsRunQueue *n_rq = c_rqi->migrate.runq;
- ERTS_DBG_VERIFY_VALID_RUNQP(n_rq);
- erts_smp_xrunq_lock(c_rq, n_rq);
-
- /*
- * erts_smp_xrunq_lock() may release lock on c_rq! We have
- * to check that we still want to emigrate and emigrate
- * to the same run queue as before.
- */
+ if (prev_proc)
+ prev_proc->next = proc->next;
+ else
+ rpq->first = proc->next;
+ if (!proc->next)
+ rpq->last = prev_proc;
- if (ERTS_CHK_RUNQ_FLG_EMIGRATE(c_rq->flags, prio)) {
- Uint32 force = (ERTS_CHK_RUNQ_FLG_EVACUATE(c_rq->flags, prio)
- | (c_rq->flags & ERTS_RUNQ_FLG_INACTIVE));
- if (force || c_rqi->len > c_rqi->migrate.limit.this) {
- ErtsRunQueueInfo *n_rqi;
- /* We still want to emigrate */
-
- if (n_rq != c_rqi->migrate.runq) {
- /* Ahh... run queue changed; need to do it all over again... */
- erts_smp_runq_unlock(n_rq);
- continue;
- }
- else {
+ if (!rpq->first)
+ rpq->last = NULL;
- if (prio == ERTS_PORT_PRIO_LEVEL)
- n_rqi = &n_rq->ports.info;
- else
- n_rqi = &n_rq->procs.prio_info[prio];
+ erts_smp_dec_runq_len(runq, rqi, prio);
+}
- if (force || (n_rqi->len < c_rqi->migrate.limit.other)) {
- /* emigrate ... */
- return n_rq;
- }
- }
- }
- }
- ASSERT(n_rq != c_rq);
- erts_smp_runq_unlock(n_rq);
- if (!(c_rq->flags & ERTS_RUNQ_FLG_INACTIVE)) {
- /* No more emigrations to this runq */
- ERTS_UNSET_RUNQ_FLG_EMIGRATE(c_rq->flags, prio);
- ERTS_DBG_SET_INVALID_RUNQP(c_rqi->migrate.runq, 0x3);
- }
+static ERTS_INLINE Process *
+dequeue_process(ErtsRunQueue *runq, int prio_q, erts_aint32_t *statep)
+{
+ erts_aint32_t state;
+ int prio;
+ ErtsRunPrioQueue *rpq;
+ ErtsRunQueueInfo *rqi;
+ Process *p;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
+
+ ASSERT(PRIORITY_NORMAL == prio_q
+ || PRIORITY_HIGH == prio_q
+ || PRIORITY_MAX == prio_q);
+
+ rpq = &runq->procs.prio[prio_q];
+ p = rpq->first;
+ if (!p)
+ return NULL;
+
+ ERTS_SMP_DATA_DEPENDENCY_READ_MEMORY_BARRIER;
+
+ state = erts_smp_atomic32_read_nob(&p->state);
+ if (statep)
+ *statep = state;
+
+ prio = (int) (ERTS_PSFLG_PRIO_MASK & state);
+
+ rqi = &runq->procs.prio_info[prio];
+
+ if (p)
+ unqueue_process(runq, rpq, rqi, prio, NULL, p);
+
+ return p;
+}
+
+static ERTS_INLINE int
+check_requeue_process(ErtsRunQueue *rq, int prio_q)
+{
+ ErtsRunPrioQueue *rpq = &rq->procs.prio[prio_q];
+ Process *p = rpq->first;
+ if (--p->schedule_count > 0 && p != rpq->last) {
+ /* reschedule */
+ rpq->first = p->next;
+ rpq->last->next = p;
+ rpq->last = p;
+ p->next = NULL;
+ return 1;
+ }
+ return 0;
+}
+
+#ifdef ERTS_SMP
+
+static ErtsRunQueue *
+check_immigration_need(ErtsRunQueue *c_rq, ErtsMigrationPath *mp, int prio)
+{
+ int len;
+ Uint32 f_flags, f_rq_flags;
+ ErtsRunQueue *f_rq;
+
+ f_flags = mp->prio[prio].flags;
+
+ ASSERT(ERTS_CHK_RUNQ_FLG_IMMIGRATE(mp->flags, prio));
+ f_rq = mp->prio[prio].runq;
+ if (!f_rq)
return NULL;
+
+ f_rq_flags = ERTS_RUNQ_FLGS_GET(f_rq);
+ if (f_rq_flags & ERTS_RUNQ_FLG_PROTECTED)
+ return NULL;
+
+ if (ERTS_CHK_RUNQ_FLG_EVACUATE(f_flags, prio))
+ return f_rq;
+
+ if (f_rq_flags & ERTS_RUNQ_FLG_INACTIVE)
+ return f_rq;
+
+ if (prio == ERTS_PORT_PRIO_LEVEL)
+ len = RUNQ_READ_LEN(&c_rq->ports.info.len);
+ else
+ len = RUNQ_READ_LEN(&c_rq->procs.prio_info[prio].len);
+
+ if (len < mp->prio[prio].limit.this) {
+ if (prio == ERTS_PORT_PRIO_LEVEL)
+ len = RUNQ_READ_LEN(&f_rq->ports.info.len);
+ else
+ len = RUNQ_READ_LEN(&f_rq->procs.prio_info[prio].len);
+
+ if (len > mp->prio[prio].limit.other)
+ return f_rq;
}
+ return NULL;
}
static void
-immigrate(ErtsRunQueue *rq)
+immigrate(ErtsRunQueue *c_rq, ErtsMigrationPath *mp)
{
- int prio;
+ Uint32 iflags, iflag;
+ erts_smp_runq_unlock(c_rq);
- ASSERT(rq->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK);
+ ASSERT(erts_thr_progress_is_managed_thread());
- for (prio = 0; prio < ERTS_NO_PRIO_LEVELS; prio++) {
- if (ERTS_CHK_RUNQ_FLG_IMMIGRATE(rq->flags, prio)) {
- ErtsRunQueueInfo *rqi = (prio == ERTS_PORT_PRIO_LEVEL
- ? &rq->ports.info
- : &rq->procs.prio_info[prio]);
- ErtsRunQueue *from_rq = rqi->migrate.runq;
- int rq_locked, from_rq_locked;
+ iflags = mp->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK;
- ERTS_DBG_VERIFY_VALID_RUNQP(from_rq);
+ iflag = iflags & -iflags;
- rq_locked = 1;
- from_rq_locked = 1;
- erts_smp_xrunq_lock(rq, from_rq);
- /*
- * erts_smp_xrunq_lock() may release lock on rq! We have
- * to check that we still want to immigrate from the same
- * run queue as before.
- */
- if (ERTS_CHK_RUNQ_FLG_IMMIGRATE(rq->flags, prio)
- && from_rq == rqi->migrate.runq) {
- ErtsRunQueueInfo *from_rqi = (prio == ERTS_PORT_PRIO_LEVEL
- ? &from_rq->ports.info
- : &from_rq->procs.prio_info[prio]);
- if ((ERTS_CHK_RUNQ_FLG_EVACUATE(rq->flags, prio)
- && ERTS_CHK_RUNQ_FLG_EVACUATE(from_rq->flags, prio)
- && from_rqi->len)
- || (from_rqi->len > rqi->migrate.limit.other
- && rqi->len < rqi->migrate.limit.this)) {
- if (prio == ERTS_PORT_PRIO_LEVEL) {
- Port *prt = from_rq->ports.start;
- if (prt) {
- int prt_locked = 0;
- (void) erts_port_migrate(prt, &prt_locked,
- from_rq, &from_rq_locked,
- rq, &rq_locked);
- if (prt_locked)
- erts_smp_port_unlock(prt);
- }
- }
- else {
- Process *proc;
- ErtsRunPrioQueue *from_rpq;
- from_rpq = (prio == PRIORITY_LOW
- ? &from_rq->procs.prio[PRIORITY_NORMAL]
- : &from_rq->procs.prio[prio]);
- for (proc = from_rpq->first; proc; proc = proc->next)
- if (proc->prio == prio && !proc->bound_runq)
- break;
- if (proc) {
- ErtsProcLocks proc_locks = 0;
- (void) erts_proc_migrate(proc, &proc_locks,
- from_rq, &from_rq_locked,
- rq, &rq_locked);
- if (proc_locks)
- erts_smp_proc_unlock(proc, proc_locks);
- }
+ while (iflag) {
+ ErtsRunQueue *rq;
+ int prio;
+
+ switch (iflag) {
+ case (MAX_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = PRIORITY_MAX;
+ break;
+ case (HIGH_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = PRIORITY_HIGH;
+ break;
+ case (NORMAL_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = PRIORITY_NORMAL;
+ break;
+ case (LOW_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = PRIORITY_LOW;
+ break;
+ case (PORT_BIT << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT):
+ prio = ERTS_PORT_PRIO_LEVEL;
+ break;
+ default:
+ erl_exit(ERTS_ABORT_EXIT,
+ "%s:%d:%s(): Invalid immigrate queue mask",
+ __FILE__, __LINE__, __func__);
+ prio = 0;
+ break;
+ }
+
+ iflags &= ~iflag;
+ iflag = iflags & -iflags;
+
+ rq = check_immigration_need(c_rq, mp, prio);
+ if (rq) {
+ erts_smp_runq_lock(rq);
+ if (prio == ERTS_PORT_PRIO_LEVEL) {
+ Port *prt;
+ prt = erts_dequeue_port(rq);
+ if (prt)
+ RUNQ_SET_RQ(&prt->run_queue, c_rq);
+ erts_smp_runq_unlock(rq);
+ if (prt) {
+ /* port might terminate while we have no lock... */
+ rq = erts_port_runq(prt);
+ if (rq) {
+ if (rq != c_rq)
+ erl_exit(ERTS_ABORT_EXIT,
+ "%s:%d:%s(): Internal error",
+ __FILE__, __LINE__, __func__);
+ erts_enqueue_port(c_rq, prt);
+ if (!iflag)
+ return; /* done */
+ erts_smp_runq_unlock(c_rq);
}
}
- else {
- ERTS_UNSET_RUNQ_FLG_IMMIGRATE(rq->flags, prio);
- ERTS_DBG_SET_INVALID_RUNQP(rqi->migrate.runq, 0x1);
+ }
+ else {
+ ErtsRunPrioQueue *rpq = &rq->procs.prio[prio == PRIORITY_LOW
+ ? PRIORITY_NORMAL
+ : prio];
+ Process *prev_proc = NULL;
+ Process *proc = rpq->first;
+ int rq_locked = 1;
+
+ while (proc) {
+ erts_aint32_t state;
+ state = erts_smp_atomic32_read_acqb(&proc->state);
+ if (!(ERTS_PSFLG_BOUND & state)
+ && (prio == (int) (ERTS_PSFLG_PRIO_MASK & state))) {
+ ErtsRunQueueInfo *rqi = &rq->procs.prio_info[prio];
+ unqueue_process(rq, rpq, rqi, prio, prev_proc, proc);
+ erts_smp_runq_unlock(rq);
+ RUNQ_SET_RQ(&proc->run_queue, c_rq);
+ rq_locked = 0;
+
+ erts_smp_runq_lock(c_rq);
+ enqueue_process(c_rq, prio, proc);
+ if (!iflag)
+ return; /* done */
+ erts_smp_runq_unlock(c_rq);
+ break;
+ }
+ prev_proc = proc;
+ proc = proc->next;
}
+ if (rq_locked)
+ erts_smp_runq_unlock(rq);
}
- if (from_rq_locked)
- erts_smp_runq_unlock(from_rq);
- if (!rq_locked)
- erts_smp_runq_lock(rq);
}
}
+
+ erts_smp_runq_lock(c_rq);
+}
+
+static ERTS_INLINE void
+suspend_run_queue(ErtsRunQueue *rq)
+{
+ erts_smp_atomic32_read_bor_nob(&rq->scheduler->ssi->flags,
+ ERTS_SSI_FLG_SUSPENDED);
+ ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_SUSPENDED);
+
+ wake_scheduler(rq, 0);
+}
+
+static void scheduler_ix_resume_wake(Uint ix);
+
+static ERTS_INLINE void
+resume_run_queue(ErtsRunQueue *rq)
+{
+ int pix;
+
+ erts_smp_runq_lock(rq);
+
+ (void) ERTS_RUNQ_FLGS_MASK_SET(rq,
+ (ERTS_RUNQ_FLG_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_SUSPENDED),
+ (ERTS_RUNQ_FLG_OUT_OF_WORK
+ | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK));
+
+ rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS;
+ for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) {
+ rq->procs.prio_info[pix].max_len = 0;
+ rq->procs.prio_info[pix].reds = 0;
+ }
+ rq->ports.info.max_len = 0;
+ rq->ports.info.reds = 0;
+ rq->max_len = 0;
+
+ erts_smp_runq_unlock(rq);
+
+ scheduler_ix_resume_wake(rq->ix);
}
+typedef struct {
+ Process *first;
+ Process *last;
+} ErtsStuckBoundProcesses;
+
static void
-evacuate_run_queue(ErtsRunQueue *evac_rq, ErtsRunQueue *rq)
+schedule_bound_processes(ErtsRunQueue *rq,
+ ErtsStuckBoundProcesses *sbpp)
{
- Port *prt;
- int notify_to_rq = 0;
- int prio;
- int prt_locked = 0;
- int rq_locked = 0;
- int evac_rq_locked = 1;
- ErtsMigrateResult mres;
+ Process *proc, *next;
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- erts_smp_runq_lock(evac_rq);
+ proc = sbpp->first;
+ while (proc) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&proc->state);
+ next = proc->next;
+ enqueue_process(rq, (int) (ERTS_PSFLG_PRIO_MASK & state), proc);
+ proc = next;
+ }
+}
- erts_smp_atomic32_read_bor_nob(&evac_rq->scheduler->ssi->flags,
- ERTS_SSI_FLG_SUSPENDED);
+static void
+evacuate_run_queue(ErtsRunQueue *rq,
+ ErtsStuckBoundProcesses *sbpp)
+{
+ int prio_q;
+ ErtsRunQueue *to_rq;
+ ErtsMigrationPaths *mps;
+ ErtsMigrationPath *mp;
- evac_rq->flags &= ~ERTS_RUNQ_FLGS_IMMIGRATE_QMASK;
- evac_rq->flags |= (ERTS_RUNQ_FLGS_EMIGRATE_QMASK
- | ERTS_RUNQ_FLGS_EVACUATE_QMASK
- | ERTS_RUNQ_FLG_SUSPENDED);
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- erts_smp_atomic32_read_bor_nob(&evac_rq->info_flags, ERTS_RUNQ_IFLG_SUSPENDED);
- /*
- * Need to set up evacuation paths first since we
- * may release the run queue lock on evac_rq
- * when evacuating.
- */
- evac_rq->misc.evac_runq = rq;
- evac_rq->ports.info.migrate.runq = rq;
- for (prio = 0; prio < ERTS_NO_PROC_PRIO_LEVELS; prio++)
- evac_rq->procs.prio_info[prio].migrate.runq = rq;
+ ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
+
+ mps = erts_get_migration_paths_managed();
+ mp = &mps->mpath[rq->ix];
/* Evacuate scheduled misc ops */
- if (evac_rq->misc.start) {
- rq_locked = 1;
- erts_smp_xrunq_lock(evac_rq, rq);
- if (rq->misc.end)
- rq->misc.end->next = evac_rq->misc.start;
+ if (rq->misc.start) {
+ ErtsMiscOpList *start, *end;
+
+ to_rq = mp->misc_evac_runq;
+ if (!to_rq)
+ return;
+
+ start = rq->misc.start;
+ end = rq->misc.end;
+ rq->misc.start = NULL;
+ rq->misc.end = NULL;
+ erts_smp_runq_unlock(rq);
+
+ erts_smp_runq_lock(to_rq);
+ if (to_rq->misc.end)
+ to_rq->misc.end->next = start;
else
- rq->misc.start = evac_rq->misc.start;
- rq->misc.end = evac_rq->misc.end;
- evac_rq->misc.start = NULL;
- evac_rq->misc.end = NULL;
+ to_rq->misc.start = start;
+
+ to_rq->misc.end = end;
+ erts_smp_runq_unlock(to_rq);
+ smp_notify_inc_runq(to_rq);
+ erts_smp_runq_lock(to_rq);
}
- /* Evacuate scheduled ports */
- prt = evac_rq->ports.start;
- while (prt) {
- mres = erts_port_migrate(prt, &prt_locked,
- evac_rq, &evac_rq_locked,
- rq, &rq_locked);
- if (mres == ERTS_MIGRATE_SUCCESS)
- notify_to_rq = 1;
- if (prt_locked)
- erts_smp_port_unlock(prt);
- if (!evac_rq_locked) {
- evac_rq_locked = 1;
- erts_smp_runq_lock(evac_rq);
+ if (rq->ports.start) {
+ Port *prt;
+
+ to_rq = mp->prio[ERTS_PORT_PRIO_LEVEL].runq;
+ if (!to_rq)
+ return;
+
+ /* Evacuate scheduled ports */
+ prt = rq->ports.start;
+ while (prt) {
+ ErtsRunQueue *prt_rq;
+ prt = erts_dequeue_port(rq);
+ RUNQ_SET_RQ(&prt->run_queue, to_rq);
+ erts_smp_runq_unlock(rq);
+ /*
+ * The port might terminate while
+ * we have no lock on it...
+ */
+ prt_rq = erts_port_runq(prt);
+ if (prt_rq) {
+ if (prt_rq != to_rq)
+ erl_exit(ERTS_ABORT_EXIT,
+ "%s:%d:%s() internal error\n",
+ __FILE__, __LINE__, __func__);
+ erts_enqueue_port(to_rq, prt);
+ erts_smp_runq_unlock(to_rq);
+ }
+ erts_smp_runq_lock(rq);
+ prt = rq->ports.start;
}
- prt = evac_rq->ports.start;
+ smp_notify_inc_runq(to_rq);
}
/* Evacuate scheduled processes */
- for (prio = 0; prio < ERTS_NO_PROC_PRIO_LEVELS; prio++) {
+ for (prio_q = 0; prio_q < ERTS_NO_PROC_PRIO_QUEUES; prio_q++) {
+ erts_aint32_t state;
Process *proc;
+ int notify = 0;
+ to_rq = NULL;
- switch (prio) {
- case PRIORITY_MAX:
- case PRIORITY_HIGH:
- case PRIORITY_NORMAL:
- proc = evac_rq->procs.prio[prio].first;
- while (proc) {
- ErtsProcLocks proc_locks = 0;
-
- /* Bound processes are stuck... */
- while (proc->bound_runq) {
- proc = proc->next;
- if (!proc)
- goto end_of_proc;
- }
-
- mres = erts_proc_migrate(proc, &proc_locks,
- evac_rq, &evac_rq_locked,
- rq, &rq_locked);
- if (mres == ERTS_MIGRATE_SUCCESS)
- notify_to_rq = 1;
- if (proc_locks)
- erts_smp_proc_unlock(proc, proc_locks);
- if (!evac_rq_locked) {
- erts_smp_runq_lock(evac_rq);
- evac_rq_locked = 1;
- }
+ if (!mp->prio[prio_q].runq)
+ return;
+ if (prio_q == PRIORITY_NORMAL && !mp->prio[PRIORITY_LOW].runq)
+ return;
- proc = evac_rq->procs.prio[prio].first;
+ proc = dequeue_process(rq, prio_q, &state);
+ while (proc) {
+ if (ERTS_PSFLG_BOUND & state) {
+ /* Bound processes get stuck here... */
+ proc->next = NULL;
+ if (sbpp->last)
+ sbpp->last->next = proc;
+ else
+ sbpp->first = proc;
+ sbpp->last = proc;
}
+ else {
+ int prio = (int) (ERTS_PSFLG_PRIO_MASK & state);
+ erts_smp_runq_unlock(rq);
- end_of_proc:
+ to_rq = mp->prio[prio].runq;
+ RUNQ_SET_RQ(&proc->run_queue, to_rq);
-#ifdef DEBUG
- for (proc = evac_rq->procs.prio[prio].first;
- proc;
- proc = proc->next) {
- ASSERT(proc->bound_runq);
+ erts_smp_runq_lock(to_rq);
+ enqueue_process(to_rq, prio, proc);
+ erts_smp_runq_unlock(to_rq);
+ notify = 1;
+
+ erts_smp_runq_lock(rq);
}
-#endif
- break;
- case PRIORITY_LOW:
- break;
- default:
- ASSERT(!"Invalid process priority");
- break;
+ proc = dequeue_process(rq, prio_q, &state);
}
+ if (notify)
+ smp_notify_inc_runq(to_rq);
}
- if (rq_locked)
- erts_smp_runq_unlock(rq);
-
- if (evac_rq_locked)
- erts_smp_runq_unlock(evac_rq);
-
- if (notify_to_rq)
- smp_notify_inc_runq(rq);
-
- wake_scheduler(evac_rq, 0);
+ if (ERTS_EMPTY_RUNQ(rq))
+ empty_runq(rq);
}
static int
-try_steal_task_from_victim(ErtsRunQueue *rq, int *rq_lockedp, ErtsRunQueue *vrq)
+try_steal_task_from_victim(ErtsRunQueue *rq, int *rq_lockedp, ErtsRunQueue *vrq, Uint32 flags)
{
- Process *proc;
- int vrq_locked;
+ Uint32 procs_qmask = flags & ERTS_RUNQ_FLGS_PROCS_QMASK;
+ int max_prio_bit;
+ ErtsRunPrioQueue *rpq;
- if (*rq_lockedp)
- erts_smp_xrunq_lock(rq, vrq);
- else
- erts_smp_runq_lock(vrq);
- vrq_locked = 1;
+ if (*rq_lockedp) {
+ erts_smp_runq_unlock(rq);
+ *rq_lockedp = 0;
+ }
- ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, *rq_lockedp);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(vrq, vrq_locked);
+ ERTS_SMP_LC_ASSERT(!erts_smp_lc_runq_is_locked(rq));
+
+ erts_smp_runq_lock(vrq);
if (rq->halt_in_progress)
- goto try_steal_port;
+ goto no_procs;
/*
* Check for a runnable process to steal...
*/
- switch (vrq->flags & ERTS_RUNQ_FLGS_PROCS_QMASK) {
- case MAX_BIT:
- case MAX_BIT|HIGH_BIT:
- case MAX_BIT|NORMAL_BIT:
- case MAX_BIT|LOW_BIT:
- case MAX_BIT|HIGH_BIT|NORMAL_BIT:
- case MAX_BIT|HIGH_BIT|LOW_BIT:
- case MAX_BIT|NORMAL_BIT|LOW_BIT:
- case MAX_BIT|HIGH_BIT|NORMAL_BIT|LOW_BIT:
- for (proc = vrq->procs.prio[PRIORITY_MAX].last;
- proc;
- proc = proc->prev) {
- if (!proc->bound_runq)
- break;
- }
- if (proc)
+ while (procs_qmask) {
+ Process *prev_proc;
+ Process *proc;
+
+ max_prio_bit = procs_qmask & -procs_qmask;
+ switch (max_prio_bit) {
+ case MAX_BIT:
+ rpq = &vrq->procs.prio[PRIORITY_MAX];
break;
- case HIGH_BIT:
- case HIGH_BIT|NORMAL_BIT:
- case HIGH_BIT|LOW_BIT:
- case HIGH_BIT|NORMAL_BIT|LOW_BIT:
- for (proc = vrq->procs.prio[PRIORITY_HIGH].last;
- proc;
- proc = proc->prev) {
- if (!proc->bound_runq)
- break;
- }
- if (proc)
+ case HIGH_BIT:
+ rpq = &vrq->procs.prio[PRIORITY_HIGH];
break;
- case NORMAL_BIT:
- case LOW_BIT:
- case NORMAL_BIT|LOW_BIT:
- for (proc = vrq->procs.prio[PRIORITY_NORMAL].last;
- proc;
- proc = proc->prev) {
- if (!proc->bound_runq)
- break;
- }
- if (proc)
+ case NORMAL_BIT:
+ case LOW_BIT:
+ rpq = &vrq->procs.prio[PRIORITY_NORMAL];
break;
- case 0:
- proc = NULL;
- break;
- default:
- ASSERT(!"Invalid queue mask");
- proc = NULL;
- break;
- }
+ case 0:
+ goto no_procs;
+ default:
+ ASSERT(!"Invalid queue mask");
+ goto no_procs;
+ }
+
+ prev_proc = NULL;
+ proc = rpq->first;
- if (proc) {
- ErtsProcLocks proc_locks = 0;
- int res;
- ErtsMigrateResult mres;
- mres = erts_proc_migrate(proc, &proc_locks,
- vrq, &vrq_locked,
- rq, rq_lockedp);
- if (proc_locks)
- erts_smp_proc_unlock(proc, proc_locks);
- res = !0;
- switch (mres) {
- case ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED:
- res = 0;
- case ERTS_MIGRATE_SUCCESS:
- if (vrq_locked)
+ while (proc) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&proc->state);
+ if (!(ERTS_PSFLG_BOUND & state)) {
+ /* Steal process */
+ int prio = (int) (ERTS_PSFLG_PRIO_MASK & state);
+ ErtsRunQueueInfo *rqi = &vrq->procs.prio_info[prio];
+ unqueue_process(vrq, rpq, rqi, prio, prev_proc, proc);
erts_smp_runq_unlock(vrq);
- return res;
- default: /* Other failures */
- break;
- }
- }
+ RUNQ_SET_RQ(&proc->run_queue, rq);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, *rq_lockedp);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(vrq, vrq_locked);
+ erts_smp_runq_lock(rq);
+ *rq_lockedp = 1;
+ enqueue_process(rq, prio, proc);
+ return !0;
+ }
+ prev_proc = proc;
+ proc = proc->next;
+ }
- if (!vrq_locked) {
- if (*rq_lockedp)
- erts_smp_xrunq_lock(rq, vrq);
- else
- erts_smp_runq_lock(vrq);
- vrq_locked = 1;
+ procs_qmask &= ~max_prio_bit;
}
- try_steal_port:
+no_procs:
- ERTS_SMP_LC_CHK_RUNQ_LOCK(rq, *rq_lockedp);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(vrq, vrq_locked);
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(vrq));
/*
* Check for a runnable port to steal...
*/
- if (vrq->ports.info.len) {
- Port *prt = vrq->ports.end;
- int prt_locked = 0;
- int res;
- ErtsMigrateResult mres;
-
- mres = erts_port_migrate(prt, &prt_locked,
- vrq, &vrq_locked,
- rq, rq_lockedp);
- if (prt_locked)
- erts_smp_port_unlock(prt);
- res = !0;
- switch (mres) {
- case ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED:
- res = 0;
- case ERTS_MIGRATE_SUCCESS:
- if (vrq_locked)
- erts_smp_runq_unlock(vrq);
- return res;
- default: /* Other failures */
- break;
+ if (vrq->ports.start) {
+ ErtsRunQueue *prt_rq;
+ Port *prt = erts_dequeue_port(vrq);
+ RUNQ_SET_RQ(&prt->run_queue, rq);
+ erts_smp_runq_unlock(vrq);
+
+ /*
+ * The port might terminate while
+ * we have no lock on it...
+ */
+
+ prt_rq = erts_port_runq(prt);
+ if (!prt_rq)
+ return 0;
+ else {
+ if (prt_rq != rq)
+ erl_exit(ERTS_ABORT_EXIT,
+ "%s:%d:%s() internal error\n",
+ __FILE__, __LINE__, __func__);
+ *rq_lockedp = 1;
+ erts_enqueue_port(rq, prt);
+ return !0;
}
}
- if (vrq_locked)
- erts_smp_runq_unlock(vrq);
+ erts_smp_runq_unlock(vrq);
return 0;
}
@@ -2933,9 +3408,10 @@ static ERTS_INLINE int
check_possible_steal_victim(ErtsRunQueue *rq, int *rq_lockedp, int vix)
{
ErtsRunQueue *vrq = ERTS_RUNQ_IX(vix);
- erts_aint32_t iflgs = erts_smp_atomic32_read_nob(&vrq->info_flags);
- if (iflgs & ERTS_RUNQ_IFLG_NONEMPTY)
- return try_steal_task_from_victim(rq, rq_lockedp, vrq);
+ Uint32 flags = ERTS_RUNQ_FLGS_GET(vrq);
+ if ((flags & (ERTS_RUNQ_FLG_NONEMPTY
+ | ERTS_RUNQ_FLG_PROTECTED)) == ERTS_RUNQ_FLG_NONEMPTY)
+ return try_steal_task_from_victim(rq, rq_lockedp, vrq, flags);
else
return 0;
}
@@ -2945,15 +3421,12 @@ static int
try_steal_task(ErtsRunQueue *rq)
{
int res, rq_locked, vix, active_rqs, blnc_rqs;
+ Uint32 flags;
- /*
- * We are not allowed to steal jobs to this run queue
- * if it is suspended. Note that it might get suspended
- * at any time when we don't have the lock on the run
- * queue.
- */
- if (rq->flags & ERTS_RUNQ_FLG_SUSPENDED)
- return 0;
+ /* Protect jobs we steal from getting stolen from us... */
+ flags = ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_PROTECTED);
+ if (flags & ERTS_RUNQ_FLG_SUSPENDED)
+ return 0; /* go suspend instead... */
res = 0;
rq_locked = 1;
@@ -3072,12 +3545,123 @@ do { \
ASSERT(sum__ == (RQ)->full_reds_history_sum); \
} while (0);
+#define ERTS_PRE_ALLOCED_MPATHS 8
+
+erts_atomic_t erts_migration_paths;
+
+static struct {
+ size_t size;
+ ErtsMigrationPaths *freelist;
+ struct {
+ ErtsMigrationPaths *first;
+ ErtsMigrationPaths *last;
+ } retired;
+} mpaths;
+
+static void
+init_migration_paths(void)
+{
+ int qix, i;
+ char *p;
+ ErtsMigrationPaths *mps;
+
+ mpaths.size = sizeof(ErtsMigrationPaths);
+ mpaths.size += sizeof(ErtsMigrationPath)*(erts_no_schedulers-1);
+ mpaths.size = ERTS_ALC_CACHE_LINE_ALIGN_SIZE(mpaths.size);
+
+ p = erts_alloc_permanent_cache_aligned(ERTS_ALC_T_LL_MPATHS,
+ (mpaths.size
+ * ERTS_PRE_ALLOCED_MPATHS));
+ mpaths.freelist = NULL;
+ for (i = 0; i < ERTS_PRE_ALLOCED_MPATHS-1; i++) {
+ mps = (ErtsMigrationPaths *) p;
+ mps->next = mpaths.freelist;
+ mpaths.freelist = mps;
+ p += mpaths.size;
+ }
+
+ mps = (ErtsMigrationPaths *) p;
+ mps->block = NULL;
+ for (qix = 0; qix < erts_no_run_queues; qix++) {
+ int pix;
+ mps->mpath[qix].flags = 0;
+ mps->mpath[qix].misc_evac_runq = NULL;
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ mps->mpath[qix].prio[pix].limit.this = -1;
+ mps->mpath[qix].prio[pix].limit.other = -1;
+ mps->mpath[qix].prio[pix].runq = NULL;
+ mps->mpath[qix].prio[pix].flags = 0;
+ }
+ }
+ erts_atomic_init_wb(&erts_migration_paths, (erts_aint_t) mps);
+}
+
+static ERTS_INLINE ErtsMigrationPaths *
+alloc_mpaths(void)
+{
+ void *block;
+ ErtsMigrationPaths *res;
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&balance_info.update_mtx));
+
+ res = mpaths.freelist;
+ if (res) {
+ mpaths.freelist = res->next;
+ res->block = NULL;
+ return res;
+ }
+ res = erts_alloc(ERTS_ALC_T_SL_MPATHS,
+ mpaths.size+ERTS_CACHE_LINE_SIZE);
+ block = (void *) res;
+ if (((UWord) res) & ERTS_CACHE_LINE_MASK)
+ res = (ErtsMigrationPaths *) ((((UWord) res) & ~ERTS_CACHE_LINE_MASK)
+ + ERTS_CACHE_LINE_SIZE);
+ res->block = block;
+ return res;
+}
+
+static ERTS_INLINE void
+retire_mpaths(ErtsMigrationPaths *mps)
+{
+ ErtsThrPrgrVal current;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_mtx_is_locked(&balance_info.update_mtx));
+
+ current = erts_thr_progress_current();
+
+ while (mpaths.retired.first) {
+ ErtsMigrationPaths *tmp = mpaths.retired.first;
+ if (!erts_thr_progress_has_reached_this(current, tmp->thr_prgr))
+ break;
+ mpaths.retired.first = tmp->next;
+ if (tmp->block) {
+ erts_free(ERTS_ALC_T_SL_MPATHS, tmp->block);
+ }
+ else {
+ tmp->next = mpaths.freelist;
+ mpaths.freelist = tmp;
+ }
+ }
+
+ if (!mpaths.retired.first)
+ mpaths.retired.last = NULL;
+
+ mps->thr_prgr = erts_thr_progress_later(NULL);
+ mps->next = NULL;
+
+ if (mpaths.retired.last)
+ mpaths.retired.last->next = mps;
+ else
+ mpaths.retired.first = mps;
+ mpaths.retired.last = mps;
+}
+
static void
check_balance(ErtsRunQueue *c_rq)
{
#if ERTS_MAX_PROCESSES >= (1 << 27)
# error check_balance() assumes ERTS_MAX_PROCESS < (1 << 27)
#endif
+ ErtsMigrationPaths *new_mpaths, *old_mpaths;
ErtsRunQueueBalance avg = {0};
Sint64 scheds_reds, full_scheds_reds;
int forced, active, current_active, oowc, half_full_scheds, full_scheds,
@@ -3103,9 +3687,9 @@ check_balance(ErtsRunQueue *c_rq)
ERTS_FOREACH_RUNQ(rq,
{
if (rq->waiting)
- rq->flags |= ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK;
+ ERTS_RUNQ_FLGS_SET(rq, ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK);
else
- rq->flags &= ~ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK;
+ ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK);
rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS;
});
@@ -3147,7 +3731,7 @@ check_balance(ErtsRunQueue *c_rq)
ErtsRunQueue *rq = ERTS_RUNQ_IX(qix);
erts_smp_runq_lock(rq);
- run_queue_info[qix].flags = rq->flags;
+ run_queue_info[qix].flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) {
run_queue_info[qix].prio[pix].max_len
= rq->procs.prio_info[pix].max_len;
@@ -3481,47 +4065,27 @@ erts_fprintf(stderr, "--------------------------------\n");
set_no_active_runqs(active);
balance_info.halftime = 1;
- erts_smp_atomic32_set_nob(&balance_info.checking_balance, 0);
+ new_mpaths = alloc_mpaths();
+
+ /* Write migration paths */
- /* Write migration paths and reset balance statistics in all queues */
for (qix = 0; qix < blnc_no_rqs; qix++) {
int mqix;
- Uint32 flags;
- ErtsRunQueue *rq = ERTS_RUNQ_IX(qix);
- ErtsRunQueueInfo *rqi;
- flags = run_queue_info[qix].flags;
- erts_smp_runq_lock(rq);
- flags |= (rq->flags & ~ERTS_RUNQ_FLGS_MIGRATION_INFO);
- ASSERT(!(flags & ERTS_RUNQ_FLG_OUT_OF_WORK));
- if (rq->waiting)
- flags |= ERTS_RUNQ_FLG_OUT_OF_WORK;
-
- rq->full_reds_history_sum
- = run_queue_info[qix].full_reds_history_sum;
- rq->full_reds_history[freds_hist_ix]
- = run_queue_info[qix].full_reds_history_change;
+ Uint32 flags = run_queue_info[qix].flags;
+ ErtsMigrationPath *mp = &new_mpaths->mpath[qix];
- ERTS_DBG_CHK_FULL_REDS_HISTORY(rq);
+ mp->flags = flags;
+ mp->misc_evac_runq = NULL;
- rq->out_of_work_count = 0;
- rq->flags = flags;
- rq->max_len = rq->len;
for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
- rqi = (pix == ERTS_PORT_PRIO_LEVEL
- ? &rq->ports.info
- : &rq->procs.prio_info[pix]);
- rqi->max_len = rqi->len;
- rqi->reds = 0;
if (!(ERTS_CHK_RUNQ_FLG_EMIGRATE(flags, pix)
| ERTS_CHK_RUNQ_FLG_IMMIGRATE(flags, pix))) {
ASSERT(run_queue_info[qix].prio[pix].immigrate_from < 0);
ASSERT(run_queue_info[qix].prio[pix].emigrate_to < 0);
-#ifdef DEBUG
- rqi->migrate.limit.this = -1;
- rqi->migrate.limit.other = -1;
- ERTS_DBG_SET_INVALID_RUNQP(rqi->migrate.runq, 0x2);
-#endif
-
+ mp->prio[pix].limit.this = -1;
+ mp->prio[pix].limit.other = -1;
+ mp->prio[pix].runq = NULL;
+ mp->prio[pix].flags = 0;
}
else if (ERTS_CHK_RUNQ_FLG_EMIGRATE(flags, pix)) {
ASSERT(!ERTS_CHK_RUNQ_FLG_IMMIGRATE(flags, pix));
@@ -3529,11 +4093,12 @@ erts_fprintf(stderr, "--------------------------------\n");
ASSERT(run_queue_info[qix].prio[pix].emigrate_to >= 0);
mqix = run_queue_info[qix].prio[pix].emigrate_to;
- rqi->migrate.limit.this
+ mp->prio[pix].limit.this
= run_queue_info[qix].prio[pix].migration_limit;
- rqi->migrate.limit.other
+ mp->prio[pix].limit.other
= run_queue_info[mqix].prio[pix].migration_limit;
- rqi->migrate.runq = ERTS_RUNQ_IX(mqix);
+ mp->prio[pix].runq = ERTS_RUNQ_IX(mqix);
+ mp->prio[pix].flags = run_queue_info[mqix].flags;
}
else {
ASSERT(ERTS_CHK_RUNQ_FLG_IMMIGRATE(flags, pix));
@@ -3541,24 +4106,142 @@ erts_fprintf(stderr, "--------------------------------\n");
ASSERT(run_queue_info[qix].prio[pix].immigrate_from >= 0);
mqix = run_queue_info[qix].prio[pix].immigrate_from;
- rqi->migrate.limit.this
+ mp->prio[pix].limit.this
= run_queue_info[qix].prio[pix].migration_limit;
- rqi->migrate.limit.other
+ mp->prio[pix].limit.other
= run_queue_info[mqix].prio[pix].migration_limit;
- rqi->migrate.runq = ERTS_RUNQ_IX(mqix);
+ mp->prio[pix].runq = ERTS_RUNQ_IX(mqix);
+ mp->prio[pix].flags = run_queue_info[mqix].flags;
}
}
+ }
+
+ old_mpaths = erts_get_migration_paths_managed();
+
+ /* Keep offline run-queues as is */
+ for (qix = blnc_no_rqs; qix < erts_no_schedulers; qix++) {
+ ErtsMigrationPath *nmp = &new_mpaths->mpath[qix];
+ ErtsMigrationPath *omp = &old_mpaths->mpath[qix];
+
+ nmp->flags = omp->flags;
+ nmp->misc_evac_runq = omp->misc_evac_runq;
+
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ nmp->prio[pix].limit.this = omp->prio[pix].limit.this;
+ nmp->prio[pix].limit.other = omp->prio[pix].limit.other;
+ nmp->prio[pix].runq = omp->prio[pix].runq;
+ nmp->prio[pix].flags = omp->prio[pix].flags;
+ }
+ }
+
+
+ /* Publish new migration paths... */
+ erts_atomic_set_wb(&erts_migration_paths, (erts_aint_t) new_mpaths);
+
+ /* Reset balance statistics in all online queues */
+ for (qix = 0; qix < blnc_no_rqs; qix++) {
+ Uint32 flags = run_queue_info[qix].flags;
+ ErtsRunQueue *rq = ERTS_RUNQ_IX(qix);
+
+ erts_smp_runq_lock(rq);
+ ASSERT(!(flags & ERTS_RUNQ_FLG_OUT_OF_WORK));
+ if (rq->waiting)
+ flags |= ERTS_RUNQ_FLG_OUT_OF_WORK;
+
+ rq->full_reds_history_sum
+ = run_queue_info[qix].full_reds_history_sum;
+ rq->full_reds_history[freds_hist_ix]
+ = run_queue_info[qix].full_reds_history_change;
+
+ ERTS_DBG_CHK_FULL_REDS_HISTORY(rq);
+
+ rq->out_of_work_count = 0;
+ (void) ERTS_RUNQ_FLGS_MASK_SET(rq, ERTS_RUNQ_FLGS_MIGRATION_INFO, flags);
+
+ rq->max_len = rq->len;
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ ErtsRunQueueInfo *rqi;
+ rqi = (pix == ERTS_PORT_PRIO_LEVEL
+ ? &rq->ports.info
+ : &rq->procs.prio_info[pix]);
+ erts_smp_reset_max_len(rq, rqi);
+ rqi->reds = 0;
+ }
rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS;
erts_smp_runq_unlock(rq);
}
+ erts_smp_atomic32_set_nob(&balance_info.checking_balance, 0);
+
balance_info.n++;
+ retire_mpaths(old_mpaths);
erts_smp_mtx_unlock(&balance_info.update_mtx);
erts_smp_runq_lock(c_rq);
}
+static void
+change_no_used_runqs(int used)
+{
+ ErtsMigrationPaths *new_mpaths, *old_mpaths;
+ int active, qix;
+ erts_smp_mtx_lock(&balance_info.update_mtx);
+ get_no_runqs(&active, NULL);
+ set_no_used_runqs(used);
+
+ old_mpaths = erts_get_migration_paths_managed();
+ new_mpaths = alloc_mpaths();
+
+ /* Write migration paths... */
+
+ for (qix = 0; qix < used; qix++) {
+ int pix;
+ ErtsMigrationPath *omp = &old_mpaths->mpath[qix];
+ ErtsMigrationPath *nmp = &new_mpaths->mpath[qix];
+
+ nmp->flags = omp->flags & ~ERTS_RUNQ_FLGS_MIGRATION_QMASKS;
+ nmp->misc_evac_runq = NULL;
+
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ nmp->prio[pix].limit.this = -1;
+ nmp->prio[pix].limit.other = -1;
+ nmp->prio[pix].runq = NULL;
+ nmp->prio[pix].flags = 0;
+ }
+ }
+ for (qix = used; qix < erts_no_run_queues; qix++) {
+ int pix;
+ ErtsRunQueue *to_rq = ERTS_RUNQ_IX(qix % used);
+ ErtsMigrationPath *nmp = &new_mpaths->mpath[qix];
+
+ nmp->flags = (ERTS_RUNQ_FLGS_EMIGRATE_QMASK
+ | ERTS_RUNQ_FLGS_EVACUATE_QMASK);
+ nmp->misc_evac_runq = to_rq;
+ for (pix = 0; pix < ERTS_NO_PRIO_LEVELS; pix++) {
+ nmp->prio[pix].limit.this = -1;
+ nmp->prio[pix].limit.other = -1;
+ nmp->prio[pix].runq = to_rq;
+ nmp->prio[pix].flags = 0;
+ }
+ }
+
+ /* ... and publish them. */
+ erts_atomic_set_wb(&erts_migration_paths, (erts_aint_t) new_mpaths);
+
+ retire_mpaths(old_mpaths);
+
+ /* Make sure that we balance soon... */
+ balance_info.forced_check_balance = 1;
+
+ erts_smp_mtx_unlock(&balance_info.update_mtx);
+
+ erts_smp_runq_lock(ERTS_RUNQ_IX(0));
+ ERTS_RUNQ_IX(0)->check_balance_reds = 0;
+ erts_smp_runq_unlock(ERTS_RUNQ_IX(0));
+}
+
+
#endif /* #ifdef ERTS_SMP */
Uint
@@ -3626,11 +4309,11 @@ static struct {
int limit;
int dec_shift;
int dec_mask;
- void (*check)(ErtsRunQueue *rq);
+ void (*check)(ErtsRunQueue *rq, Uint32 flags);
} wakeup_other;
static void
-wakeup_other_check(ErtsRunQueue *rq)
+wakeup_other_check(ErtsRunQueue *rq, Uint32 flags)
{
int wo_reds = rq->wakeup_other_reds;
if (wo_reds) {
@@ -3648,6 +4331,8 @@ wakeup_other_check(ErtsRunQueue *rq)
if (rq->wakeup_other > wakeup_other.limit) {
int empty_rqs =
erts_smp_atomic32_read_acqb(&no_empty_run_queues);
+ if (flags & ERTS_RUNQ_FLG_PROTECTED)
+ ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
if (empty_rqs != 0)
wake_scheduler_on_empty_runq(rq);
rq->wakeup_other = 0;
@@ -3692,18 +4377,21 @@ wakeup_other_set_limit(void)
}
static void
-wakeup_other_check_legacy(ErtsRunQueue *rq)
+wakeup_other_check_legacy(ErtsRunQueue *rq, Uint32 flags)
{
int wo_reds = rq->wakeup_other_reds;
if (wo_reds) {
- if (rq->len < 2) {
+ erts_aint32_t len = rq->len;
+ if (len < 2) {
rq->wakeup_other -= ERTS_WAKEUP_OTHER_DEC_LEGACY*wo_reds;
if (rq->wakeup_other < 0)
rq->wakeup_other = 0;
}
else if (rq->wakeup_other < wakeup_other.limit)
- rq->wakeup_other += rq->len*wo_reds + ERTS_WAKEUP_OTHER_FIXED_INC_LEGACY;
+ rq->wakeup_other += len*wo_reds + ERTS_WAKEUP_OTHER_FIXED_INC_LEGACY;
else {
+ if (flags & ERTS_RUNQ_FLG_PROTECTED)
+ ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
if (erts_smp_atomic32_read_acqb(&no_empty_run_queues) != 0) {
wake_scheduler_on_empty_runq(rq);
rq->wakeup_other = 0;
@@ -3903,7 +4591,6 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
rq->ix = ix;
- erts_smp_atomic32_init_nob(&rq->info_flags, ERTS_RUNQ_IFLG_NONEMPTY);
/* make sure that the "extra" id correponds to the schedulers
* id if the esdp->no <-> ix+1 mapping change.
@@ -3914,7 +4601,7 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
rq->waiting = 0;
rq->woken = 0;
- rq->flags = 0;
+ ERTS_RUNQ_FLGS_INIT(rq, ERTS_RUNQ_FLG_NONEMPTY);
rq->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS;
rq->full_reds_history_sum = 0;
for (rix = 0; rix < ERTS_FULL_REDS_HISTORY_SIZE; rix++) {
@@ -3928,19 +4615,14 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
rq->wakeup_other_reds = 0;
rq->halt_in_progress = 0;
- rq->procs.len = 0;
rq->procs.pending_exiters = NULL;
rq->procs.context_switches = 0;
rq->procs.reductions = 0;
for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) {
- rq->procs.prio_info[pix].len = 0;
+ erts_smp_atomic32_init_nob(&rq->procs.prio_info[pix].len, 0);
rq->procs.prio_info[pix].max_len = 0;
rq->procs.prio_info[pix].reds = 0;
- rq->procs.prio_info[pix].migrate.limit.this = 0;
- rq->procs.prio_info[pix].migrate.limit.other = 0;
- ERTS_DBG_SET_INVALID_RUNQP(rq->procs.prio_info[pix].migrate.runq,
- 0x0);
if (pix < ERTS_NO_PROC_PRIO_LEVELS - 1) {
rq->procs.prio[pix].first = NULL;
rq->procs.prio[pix].last = NULL;
@@ -3949,14 +4631,10 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
rq->misc.start = NULL;
rq->misc.end = NULL;
- rq->misc.evac_runq = NULL;
- rq->ports.info.len = 0;
+ erts_smp_atomic32_init_nob(&rq->ports.info.len, 0);
rq->ports.info.max_len = 0;
rq->ports.info.reds = 0;
- rq->ports.info.migrate.limit.this = 0;
- rq->ports.info.migrate.limit.other = 0;
- rq->ports.info.migrate.runq = NULL;
rq->ports.start = NULL;
rq->ports.end = NULL;
}
@@ -4079,10 +4757,12 @@ erts_init_scheduling(int no_schedulers, int no_schedulers_online)
balance_info.prev_rise.reds = 0;
balance_info.n = 0;
+ init_migration_paths();
+
if (no_schedulers_online < no_schedulers) {
+ change_no_used_runqs(no_schedulers_online);
for (ix = no_schedulers_online; ix < erts_no_run_queues; ix++)
- evacuate_run_queue(ERTS_RUNQ_IX(ix),
- ERTS_RUNQ_IX(ix % no_schedulers_online));
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
}
schdlr_sspnd.wait_curr_online = no_schedulers_online;
@@ -4145,91 +4825,208 @@ erts_get_scheduler_data(void)
#endif
-static int remove_proc_from_runq(ErtsRunQueue *rq, Process *p, int to_inactive);
+/*
+ * scheduler_out_process() return with c_rq locked.
+ */
+static ERTS_INLINE int
+schedule_out_process(ErtsRunQueue *c_rq, erts_aint32_t state, Process *p)
+{
+ erts_aint32_t a, e, n;
+ int res = 0;
+
+ a = state;
+
+ while (1) {
+ n = e = a;
+
+ ASSERT(a & ERTS_PSFLG_RUNNING);
+ ASSERT(!(a & ERTS_PSFLG_IN_RUNQ));
+
+ n &= ~ERTS_PSFLG_RUNNING;
+ if ((a & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED)) == ERTS_PSFLG_ACTIVE)
+ n |= ERTS_PSFLG_IN_RUNQ;
+ a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e);
+ if (a == e)
+ break;
+ }
+
+ if (!(n & ERTS_PSFLG_IN_RUNQ)) {
+ if (erts_system_profile_flags.runnable_procs)
+ profile_runnable_proc(p, am_inactive);
+ }
+ else {
+ int prio = (int) (ERTS_PSFLG_PRIO_MASK & n);
+ ErtsRunQueue *runq = erts_get_runq_proc(p);
+
+ ASSERT(!(n & ERTS_PSFLG_SUSPENDED));
+
+#ifdef ERTS_SMP
+ if (!(ERTS_PSFLG_BOUND & n)) {
+ ErtsRunQueue *new_runq = erts_check_emigration_need(runq, prio);
+ if (new_runq) {
+ RUNQ_SET_RQ(&p->run_queue, new_runq);
+ runq = new_runq;
+ }
+ }
+#endif
+ ASSERT(runq);
+ res = 1;
+
+ erts_smp_runq_lock(runq);
+
+ /* Enqueue the process */
+ enqueue_process(runq, prio, p);
+
+ if (runq == c_rq)
+ return res;
+ erts_smp_runq_unlock(runq);
+ smp_notify_inc_runq(runq);
+ }
+ erts_smp_runq_lock(c_rq);
+ return res;
+}
static ERTS_INLINE void
-suspend_process(ErtsRunQueue *rq, Process *p)
+add2runq(Process *p, erts_aint32_t state)
{
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- p->rcount++; /* count number of suspend */
-#ifdef ERTS_SMP
- ASSERT(!(p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING)
- || p == erts_get_current_process());
- ASSERT(p->status != P_RUNNING
- || p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING);
- if (p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ)
- goto runable;
-#endif
- switch(p->status) {
- case P_SUSPENDED:
- break;
- case P_RUNABLE:
+ int prio = (int) (ERTS_PSFLG_PRIO_MASK & state);
+ ErtsRunQueue *runq = erts_get_runq_proc(p);
+
#ifdef ERTS_SMP
- runable:
- if (!ERTS_PROC_PENDING_EXIT(p))
+ if (!(ERTS_PSFLG_BOUND & state)) {
+ ErtsRunQueue *new_runq = erts_check_emigration_need(runq, prio);
+ if (new_runq) {
+ RUNQ_SET_RQ(&p->run_queue, new_runq);
+ runq = new_runq;
+ }
+ }
#endif
- remove_proc_from_runq(rq, p, 1);
- /* else:
- * leave process in schedq so it will discover the pending exit
- */
- p->rstatus = P_RUNABLE; /* wakeup as runnable */
- break;
- case P_RUNNING:
- p->rstatus = P_RUNABLE; /* wakeup as runnable */
- break;
- case P_WAITING:
- p->rstatus = P_WAITING; /* wakeup as waiting */
- break;
- case P_EXITING:
- return; /* ignore this */
- case P_GARBING:
- case P_FREE:
- erl_exit(1, "bad state in suspend_process()\n");
+ ASSERT(runq);
+
+ erts_smp_runq_lock(runq);
+
+ /* Enqueue the process */
+ enqueue_process(runq, prio, p);
+
+ erts_smp_runq_unlock(runq);
+ smp_notify_inc_runq(runq);
+
+}
+
+static ERTS_INLINE void
+schedule_process(Process *p, erts_aint32_t state, int active_enq)
+{
+ erts_aint32_t a = state, n;
+
+ while (1) {
+ erts_aint32_t e;
+ n = e = a;
+ ASSERT(!(a & ERTS_PSFLG_FREE));
+ n |= ERTS_PSFLG_ACTIVE;
+ if (!(a & (ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_RUNNING)))
+ n |= ERTS_PSFLG_IN_RUNQ;
+ a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e);
+ if (a == e)
+ break;
+ if (!active_enq && (a & ERTS_PSFLG_ACTIVE))
+ return; /* Someone else activated process ... */
}
- if ((erts_system_profile_flags.runnable_procs) && (p->rcount == 1) && (p->status != P_WAITING)) {
- profile_runnable_proc(p, am_inactive);
+#ifdef RRR_DEBUG
+ if (active_enq)
+ erts_fprintf(stderr, "! state=0x%x\n", n);
+#endif
+
+ if (erts_system_profile_flags.runnable_procs
+ && !(a & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED))) {
+ profile_runnable_proc(p, am_active);
}
- p->status = P_SUSPENDED;
-
+ if ((n & ERTS_PSFLG_IN_RUNQ) && !(a & ERTS_PSFLG_IN_RUNQ)) {
+#ifdef RRR_DEBUG
+ if (active_enq)
+ erts_fprintf(stderr, "-->\n");
+#endif
+ add2runq(p, n);
+ }
}
-static ERTS_INLINE void
-resume_process(Process *p)
+void
+erts_schedule_process(Process *p, erts_aint32_t state)
+{
+ schedule_process(p, state, 0);
+}
+
+static ERTS_INLINE int
+suspend_process(Process *c_p, Process *p)
{
- Uint32 *statusp;
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ int suspended = 0;
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- switch (p->status) {
- case P_SUSPENDED:
- statusp = &p->status;
- break;
- case P_GARBING:
- if (p->gcstatus == P_SUSPENDED) {
- statusp = &p->gcstatus;
- break;
+
+ if ((state & ERTS_PSFLG_SUSPENDED))
+ suspended = -1;
+ else {
+ if (c_p == p) {
+ state = erts_smp_atomic32_read_bor_relb(&p->state,
+ ERTS_PSFLG_SUSPENDED);
+ state |= ERTS_PSFLG_SUSPENDED;
+ ASSERT(state & ERTS_PSFLG_RUNNING);
+ suspended = 1;
}
- /* Fall through */
- default:
- return;
+ else {
+ while (!(state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_EXITING))) {
+ erts_aint32_t e, n;
+ n = e = state;
+ n |= ERTS_PSFLG_SUSPENDED;
+ state = erts_smp_atomic32_cmpxchg_relb(&p->state, n, e);
+ if (state == e) {
+ state = n;
+ suspended = 1;
+ break;
+ }
+ }
+ }
+ }
+
+ if (state & ERTS_PSFLG_SUSPENDED) {
+
+ ASSERT(!(ERTS_PSFLG_RUNNING & state)
+ || p == erts_get_current_process());
+
+ if (erts_system_profile_flags.runnable_procs
+ && (p->rcount == 0)
+ && (state & ERTS_PSFLG_ACTIVE)) {
+ profile_runnable_proc(p, am_inactive);
+ }
+
+ p->rcount++; /* count number of suspend */
}
+ return suspended;
+}
+
+static ERTS_INLINE void
+resume_process(Process *p)
+{
+ erts_aint32_t state;
+ ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
ASSERT(p->rcount > 0);
if (--p->rcount > 0) /* multiple suspend */
return;
- switch(p->rstatus) {
- case P_RUNABLE:
- erts_add_to_runq(p);
- break;
- case P_WAITING:
- *statusp = P_WAITING;
- break;
- default:
- erl_exit(1, "bad state in resume_process()\n");
+
+ state = erts_smp_atomic32_read_band_mb(&p->state, ~ERTS_PSFLG_SUSPENDED);
+ state &= ~ERTS_PSFLG_SUSPENDED;
+#ifdef RRR_DEBUG
+ erts_fprintf(stderr, "%T - state=0x%x\n", p->id, state);
+#endif
+ if ((state & (ERTS_PSFLG_EXITING
+ | ERTS_PSFLG_ACTIVE
+ | ERTS_PSFLG_IN_RUNQ
+ | ERTS_PSFLG_RUNNING)) == ERTS_PSFLG_ACTIVE) {
+ schedule_process(p, state, 1);
}
- p->rstatus = P_FREE;
}
int
@@ -4353,6 +5150,7 @@ suspend_scheduler(ErtsSchedulerData *esdp)
int wake = 0;
erts_aint32_t aux_work;
int thr_prgr_active = 1;
+ ErtsStuckBoundProcesses sbp = {NULL, NULL};
/*
* Schedulers may be suspended in two different ways:
@@ -4367,6 +5165,8 @@ suspend_scheduler(ErtsSchedulerData *esdp)
ASSERT(no != 1);
+ evacuate_run_queue(esdp->run_queue, &sbp);
+
erts_smp_runq_unlock(esdp->run_queue);
erts_sched_check_cpu_bind_prep_suspend(esdp);
@@ -4430,19 +5230,28 @@ suspend_scheduler(ErtsSchedulerData *esdp)
erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
while (1) {
+ erts_aint32_t qmask;
erts_aint32_t flgs;
+ qmask = (ERTS_RUNQ_FLGS_GET(esdp->run_queue)
+ & ERTS_RUNQ_FLGS_QMASK);
aux_work = erts_atomic32_read_acqb(&ssi->aux_work);
- if (aux_work) {
+ if (aux_work|qmask) {
if (!thr_prgr_active) {
erts_thr_progress_active(esdp, thr_prgr_active = 1);
sched_wall_time_change(esdp, 1);
}
- aux_work = handle_aux_work(&esdp->aux_work_data,
- aux_work,
- 1);
+ if (aux_work)
+ aux_work = handle_aux_work(&esdp->aux_work_data,
+ aux_work,
+ 1);
if (aux_work && erts_thr_progress_update(esdp))
erts_thr_progress_leader_update(esdp);
+ if (qmask) {
+ erts_smp_runq_lock(esdp->run_queue);
+ evacuate_run_queue(esdp->run_queue, &sbp);
+ erts_smp_runq_unlock(esdp->run_queue);
+ }
}
if (!aux_work) {
@@ -4512,56 +5321,11 @@ suspend_scheduler(ErtsSchedulerData *esdp)
erts_smp_runq_lock(esdp->run_queue);
non_empty_runq(esdp->run_queue);
+ schedule_bound_processes(esdp->run_queue, &sbp);
+
erts_sched_check_cpu_bind_post_suspend(esdp);
}
-#define ERTS_RUNQ_RESET_SUSPEND_INFO(RQ, DBG_ID) \
-do { \
- int pix__; \
- (RQ)->misc.evac_runq = NULL; \
- (RQ)->ports.info.migrate.runq = NULL; \
- (RQ)->flags &= ~(ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \
- | ERTS_RUNQ_FLGS_EMIGRATE_QMASK \
- | ERTS_RUNQ_FLGS_EVACUATE_QMASK \
- | ERTS_RUNQ_FLG_SUSPENDED); \
- (RQ)->flags |= (ERTS_RUNQ_FLG_OUT_OF_WORK \
- | ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK); \
- (RQ)->check_balance_reds = ERTS_RUNQ_CALL_CHECK_BALANCE_REDS; \
- erts_smp_atomic32_read_band_nob(&(RQ)->info_flags, ~ERTS_RUNQ_IFLG_SUSPENDED);\
- for (pix__ = 0; pix__ < ERTS_NO_PROC_PRIO_LEVELS; pix__++) { \
- (RQ)->procs.prio_info[pix__].max_len = 0; \
- (RQ)->procs.prio_info[pix__].reds = 0; \
- ERTS_DBG_SET_INVALID_RUNQP((RQ)->procs.prio_info[pix__].migrate.runq,\
- (DBG_ID)); \
- } \
- (RQ)->ports.info.max_len = 0; \
- (RQ)->ports.info.reds = 0; \
-} while (0)
-
-#define ERTS_RUNQ_RESET_MIGRATION_PATHS__(RQ) \
-do { \
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked((RQ))); \
- (RQ)->misc.evac_runq = NULL; \
- (RQ)->ports.info.migrate.runq = NULL; \
- (RQ)->flags &= ~(ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \
- | ERTS_RUNQ_FLGS_EMIGRATE_QMASK \
- | ERTS_RUNQ_FLGS_EVACUATE_QMASK); \
-} while (0)
-
-#ifdef DEBUG
-#define ERTS_RUNQ_RESET_MIGRATION_PATHS(RQ, DBG_ID) \
-do { \
- int pix__; \
- ERTS_RUNQ_RESET_MIGRATION_PATHS__((RQ)); \
- for (pix__ = 0; pix__ < ERTS_NO_PROC_PRIO_LEVELS; pix__++) \
- ERTS_DBG_SET_INVALID_RUNQP((RQ)->procs.prio_info[pix__].migrate.runq,\
- (DBG_ID)); \
-} while (0)
-#else
-#define ERTS_RUNQ_RESET_MIGRATION_PATHS(RQ, DBG_ID) \
- ERTS_RUNQ_RESET_MIGRATION_PATHS__((RQ))
-#endif
-
ErtsSchedSuspendResult
erts_schedulers_state(Uint *total,
Uint *online,
@@ -4631,27 +5395,13 @@ erts_set_schedulers_online(Process *p,
have_unlocked_plocks = 1;
erts_smp_proc_unlock(p, plocks);
}
- erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
- erts_smp_mtx_lock(&balance_info.update_mtx);
- for (ix = online; ix < no; ix++) {
- ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- ERTS_RUNQ_RESET_SUSPEND_INFO(rq, 0x5);
- erts_smp_runq_unlock(rq);
- scheduler_ix_resume_wake(ix);
- }
- /*
- * Spread evacuation paths among all online
- * run queues.
- */
- for (ix = no; ix < erts_no_run_queues; ix++) {
- ErtsRunQueue *from_rq = ERTS_RUNQ_IX(ix);
- ErtsRunQueue *to_rq = ERTS_RUNQ_IX(ix % no);
- evacuate_run_queue(from_rq, to_rq);
- }
- set_no_used_runqs(no);
- erts_smp_mtx_unlock(&balance_info.update_mtx);
- erts_smp_mtx_lock(&schdlr_sspnd.mtx);
+ change_no_used_runqs(no);
+
+ for (ix = online; ix < no; ix++)
+ resume_run_queue(ERTS_RUNQ_IX(ix));
+
+ for (ix = no; ix < erts_no_run_queues; ix++)
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
}
res = ERTS_SCHDLR_SSPND_DONE;
}
@@ -4678,25 +5428,11 @@ erts_set_schedulers_online(Process *p,
have_unlocked_plocks = 1;
erts_smp_proc_unlock(p, plocks);
}
- erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
- erts_smp_mtx_lock(&balance_info.update_mtx);
-
- for (ix = 0; ix < online; ix++) {
- ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- ERTS_RUNQ_RESET_MIGRATION_PATHS(rq, 0x6);
- erts_smp_runq_unlock(rq);
- }
- /*
- * Evacutation order important! Newly suspended run queues
- * has to be evacuated last.
- */
- for (ix = erts_no_run_queues-1; ix >= no; ix--)
- evacuate_run_queue(ERTS_RUNQ_IX(ix),
- ERTS_RUNQ_IX(ix % no));
- set_no_used_runqs(no);
- erts_smp_mtx_unlock(&balance_info.update_mtx);
- erts_smp_mtx_lock(&schdlr_sspnd.mtx);
+
+ change_no_used_runqs(no);
+ for (ix = no; ix < erts_no_run_queues; ix++)
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
+
for (ix = no; ix < online; ix++) {
ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
wake_scheduler(rq, 0);
@@ -4793,25 +5529,14 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
schdlr_sspnd.msb.wait_active = 2;
}
- erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
- erts_smp_mtx_lock(&balance_info.update_mtx);
- set_no_used_runqs(1);
- for (ix = 0; ix < online; ix++) {
+ change_no_used_runqs(1);
+ for (ix = 1; ix < erts_no_run_queues; ix++)
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
+
+ for (ix = 1; ix < online; ix++) {
ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- ASSERT(!(rq->flags & ERTS_RUNQ_FLG_SUSPENDED));
- ERTS_RUNQ_RESET_MIGRATION_PATHS(rq, 0x7);
- erts_smp_runq_unlock(rq);
+ wake_scheduler(rq, 0);
}
- /*
- * Evacuate all activities in all other run queues
- * into the first run queue. Note order is important,
- * online run queues has to be evacuated last.
- */
- for (ix = erts_no_run_queues-1; ix >= 1; ix--)
- evacuate_run_queue(ERTS_RUNQ_IX(ix), ERTS_RUNQ_IX(0));
- erts_smp_mtx_unlock(&balance_info.update_mtx);
- erts_smp_mtx_lock(&schdlr_sspnd.mtx);
if (erts_smp_atomic32_read_nob(&schdlr_sspnd.active)
!= schdlr_sspnd.msb.wait_active) {
@@ -4855,15 +5580,6 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
plp = proclist_create(p);
plp->next = schdlr_sspnd.msb.procs;
schdlr_sspnd.msb.procs = plp;
-#ifdef DEBUG
- ERTS_FOREACH_RUNQ(srq,
- {
- if (srq != ERTS_RUNQ_IX(0)) {
- ASSERT(ERTS_EMPTY_RUNQ(srq));
- ASSERT(srq->flags & ERTS_RUNQ_FLG_SUSPENDED);
- }
- });
-#endif
ASSERT(p->scheduler_data);
}
}
@@ -4895,27 +5611,6 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
res = ERTS_SCHDLR_SSPND_DONE_MSCHED_BLOCKED;
else {
ERTS_SCHDLR_SSPND_CHNG_SET(ERTS_SCHDLR_SSPND_CHNG_MSB, 0);
-#ifdef DEBUG
- ERTS_FOREACH_RUNQ(rq,
- {
- if (rq != p->scheduler_data->run_queue) {
- if (!ERTS_EMPTY_RUNQ(rq)) {
- Process *rp;
- int pix;
- ASSERT(rq->ports.info.len == 0);
- for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++) {
- for (rp = rq->procs.prio[pix].first;
- rp;
- rp = rp->next) {
- ASSERT(rp->bound_runq);
- }
- }
- }
-
- ASSERT(rq->flags & ERTS_RUNQ_FLG_SUSPENDED);
- }
- });
-#endif
p->flags &= ~F_HAVE_BLCKD_MSCHED;
schdlr_sspnd.msb.ongoing = 0;
if (schdlr_sspnd.online == 1) {
@@ -4925,35 +5620,19 @@ erts_block_multi_scheduling(Process *p, ErtsProcLocks plocks, int on, int all)
}
else {
int online = schdlr_sspnd.online;
- erts_smp_mtx_unlock(&schdlr_sspnd.mtx);
if (plocks) {
have_unlocked_plocks = 1;
erts_smp_proc_unlock(p, plocks);
}
- erts_smp_mtx_lock(&balance_info.update_mtx);
+
+ change_no_used_runqs(online);
/* Resume all online run queues */
- for (ix = 1; ix < online; ix++) {
- ErtsRunQueue *rq = ERTS_RUNQ_IX(ix);
- erts_smp_runq_lock(rq);
- ERTS_RUNQ_RESET_SUSPEND_INFO(rq, 0x4);
- erts_smp_runq_unlock(rq);
- scheduler_ix_resume_wake(ix);
- }
+ for (ix = 1; ix < online; ix++)
+ resume_run_queue(ERTS_RUNQ_IX(ix));
- /* Spread evacuation paths among all online run queues */
for (ix = online; ix < erts_no_run_queues; ix++)
- evacuate_run_queue(ERTS_RUNQ_IX(ix),
- ERTS_RUNQ_IX(ix % online));
-
- set_no_used_runqs(online);
- /* Make sure that we balance soon... */
- balance_info.forced_check_balance = 1;
- erts_smp_runq_lock(ERTS_RUNQ_IX(0));
- ERTS_RUNQ_IX(0)->check_balance_reds = 0;
- erts_smp_runq_unlock(ERTS_RUNQ_IX(0));
- erts_smp_mtx_unlock(&balance_info.update_mtx);
- erts_smp_mtx_lock(&schdlr_sspnd.mtx);
+ suspend_run_queue(ERTS_RUNQ_IX(ix));
}
res = ERTS_SCHDLR_SSPND_DONE;
}
@@ -5260,10 +5939,7 @@ handle_pend_sync_suspend(Process *suspendee,
if (suspender) {
ASSERT(is_nil(suspender->suspendee));
if (suspendee_alive) {
- ErtsRunQueue *rq = erts_get_runq_proc(suspendee);
- erts_smp_runq_lock(rq);
- suspend_process(rq, suspendee);
- erts_smp_runq_unlock(rq);
+ erts_suspend(suspendee, suspendee_locks, NULL);
suspender->suspendee = suspendee->id;
}
/* suspender is suspended waiting for suspendee to suspend;
@@ -5306,10 +5982,9 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
resume_process(rp);
}
else {
- ErtsRunQueue *cp_rq, *rp_rq;
rp = erts_pid2proc(c_p, c_p_locks|ERTS_PROC_LOCK_STATUS,
- pid, ERTS_PROC_LOCK_STATUS);
+ pid, pid_locks|ERTS_PROC_LOCK_STATUS);
if (!rp) {
c_p->flags &= ~F_P2PNR_RESCHED;
@@ -5318,58 +5993,36 @@ pid2proc_not_running(Process *c_p, ErtsProcLocks c_p_locks,
ASSERT(!(c_p->flags & F_P2PNR_RESCHED));
- cp_rq = erts_get_runq_proc(c_p);
- rp_rq = erts_get_runq_proc(rp);
- erts_smp_runqs_lock(cp_rq, rp_rq);
- if (rp->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) {
- running:
- /* Phiu... */
-
- /*
- * If we got pending suspenders and suspend ourselves waiting
- * to suspend another process we might deadlock.
- * In this case we have to yield, be suspended by
- * someone else and then do it all over again.
- */
- if (!c_p->pending_suspenders) {
- /* Mark rp pending for suspend by c_p */
- add_pend_suspend(rp, c_p->id, handle_pend_sync_suspend);
- ASSERT(is_nil(c_p->suspendee));
-
- /* Suspend c_p; when rp is suspended c_p will be resumed. */
- suspend_process(cp_rq, c_p);
- c_p->flags |= F_P2PNR_RESCHED;
- }
- /* Yield (caller is assumed to yield immediately in bif). */
- erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS);
- rp = ERTS_PROC_LOCK_BUSY;
+ if (suspend) {
+ if (suspend_process(c_p, rp))
+ goto done;
}
else {
- ErtsProcLocks need_locks = pid_locks & ~ERTS_PROC_LOCK_STATUS;
- if (need_locks && erts_smp_proc_trylock(rp, need_locks) == EBUSY) {
- erts_smp_runqs_unlock(cp_rq, rp_rq);
- erts_smp_proc_unlock(rp, ERTS_PROC_LOCK_STATUS);
- rp = erts_pid2proc(c_p, c_p_locks|ERTS_PROC_LOCK_STATUS,
- pid, pid_locks|ERTS_PROC_LOCK_STATUS);
- if (!rp)
- goto done;
- /* run-queues may have changed */
- cp_rq = erts_get_runq_proc(c_p);
- rp_rq = erts_get_runq_proc(rp);
- erts_smp_runqs_lock(cp_rq, rp_rq);
- if (rp->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) {
- /* Ahh... */
- erts_smp_proc_unlock(rp,
- pid_locks & ~ERTS_PROC_LOCK_STATUS);
- goto running;
- }
- }
+ if (!(ERTS_PSFLG_RUNNING & erts_smp_atomic32_read_acqb(&rp->state)))
+ goto done;
+
+ }
- /* rp is not running and we got the locks we want... */
- if (suspend)
- suspend_process(rp_rq, rp);
+ /* Other process running */
+
+ /*
+ * If we got pending suspenders and suspend ourselves waiting
+ * to suspend another process we might deadlock.
+ * In this case we have to yield, be suspended by
+ * someone else and then do it all over again.
+ */
+ if (!c_p->pending_suspenders) {
+ /* Mark rp pending for suspend by c_p */
+ add_pend_suspend(rp, c_p->id, handle_pend_sync_suspend);
+ ASSERT(is_nil(c_p->suspendee));
+
+ /* Suspend c_p; when rp is suspended c_p will be resumed. */
+ suspend_process(c_p, c_p);
+ c_p->flags |= F_P2PNR_RESCHED;
}
- erts_smp_runqs_unlock(cp_rq, rp_rq);
+ /* Yield (caller is assumed to yield immediately in bif). */
+ erts_smp_proc_unlock(rp, pid_locks|ERTS_PROC_LOCK_STATUS);
+ rp = ERTS_PROC_LOCK_BUSY;
}
done:
@@ -5426,36 +6079,26 @@ erts_pid2proc_nropt(Process *c_p, ErtsProcLocks c_p_locks,
return erts_pid2proc_not_running(c_p, c_p_locks, pid, pid_locks);
}
-static ERTS_INLINE void
-do_bif_suspend_process(ErtsSuspendMonitor *smon,
- Process *suspendee,
- ErtsRunQueue *locked_runq)
+static ERTS_INLINE int
+do_bif_suspend_process(Process *c_p,
+ ErtsSuspendMonitor *smon,
+ Process *suspendee)
{
ASSERT(suspendee);
- ASSERT(!suspendee->is_exiting);
+ ASSERT(!ERTS_PROC_IS_EXITING(suspendee));
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS
& erts_proc_lc_my_proc_locks(suspendee));
if (smon) {
if (!smon->active) {
- ErtsRunQueue *rq;
-
- if (locked_runq)
- rq = locked_runq;
- else {
- rq = erts_get_runq_proc(suspendee);
- erts_smp_runq_lock(rq);
- }
-
- suspend_process(rq, suspendee);
-
- if (!locked_runq)
- erts_smp_runq_unlock(rq);
+ if (!suspend_process(c_p, suspendee))
+ return 0;
}
smon->active += smon->pending;
ASSERT(smon->active);
smon->pending = 0;
+ return 1;
}
-
+ return 0;
}
static void
@@ -5478,10 +6121,17 @@ handle_pend_bif_sync_suspend(Process *suspendee,
erts_delete_suspend_monitor(&suspender->suspend_monitors,
suspendee->id);
else {
+#ifdef DEBUG
+ int res;
+#endif
ErtsSuspendMonitor *smon;
smon = erts_lookup_suspend_monitor(suspender->suspend_monitors,
suspendee->id);
- do_bif_suspend_process(smon, suspendee, NULL);
+#ifdef DEBUG
+ res =
+#endif
+ do_bif_suspend_process(suspendee, smon, suspendee);
+ ASSERT(!smon || res != 0);
suspender->suspendee = suspendee->id;
}
/* suspender is suspended waiting for suspendee to suspend;
@@ -5513,10 +6163,17 @@ handle_pend_bif_async_suspend(Process *suspendee,
erts_delete_suspend_monitor(&suspender->suspend_monitors,
suspendee->id);
else {
+#ifdef DEBUG
+ int res;
+#endif
ErtsSuspendMonitor *smon;
smon = erts_lookup_suspend_monitor(suspender->suspend_monitors,
suspendee->id);
- do_bif_suspend_process(smon, suspendee, NULL);
+#ifdef DEBUG
+ res =
+#endif
+ do_bif_suspend_process(suspendee, smon, suspendee);
+ ASSERT(!smon || res != 0);
}
erts_smp_proc_unlock(suspender, ERTS_PROC_LOCK_LINK);
}
@@ -5601,7 +6258,8 @@ suspend_process_2(BIF_ALIST_2)
/* This is really a piece of cake without SMP support... */
if (!smon->active) {
- suspend_process(ERTS_RUNQ_IX(0), suspendee);
+ erts_smp_atomic32_read_bor_nob(&suspendee->state, ERTS_PSFLG_SUSPENDED);
+ suspend_process(BIF_P, suspendee);
smon->active++;
res = am_true;
}
@@ -5644,21 +6302,15 @@ suspend_process_2(BIF_ALIST_2)
if (smon->pending && unless_suspending)
res = am_false;
else {
- ErtsRunQueue *rq;
if (smon->pending == INT_MAX)
goto system_limit;
smon->pending++;
- rq = erts_get_runq_proc(suspendee);
- erts_smp_runq_lock(rq);
- if (suspendee->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING)
+ if (!do_bif_suspend_process(BIF_P, smon, suspendee))
add_pend_suspend(suspendee,
BIF_P->id,
handle_pend_bif_async_suspend);
- else
- do_bif_suspend_process(smon, suspendee, rq);
- erts_smp_runq_unlock(rq);
res = am_true;
}
@@ -5695,7 +6347,6 @@ suspend_process_2(BIF_ALIST_2)
/* done */
}
else {
- ErtsRunQueue *cp_rq, *s_rq;
/* We haven't got any active suspends on the suspendee */
/*
@@ -5712,12 +6363,7 @@ suspend_process_2(BIF_ALIST_2)
if (!unless_suspending || smon->pending == 0)
smon->pending++;
- cp_rq = erts_get_runq_proc(BIF_P);
- s_rq = erts_get_runq_proc(suspendee);
- erts_smp_runqs_lock(cp_rq, s_rq);
- if (!(suspendee->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING)) {
- do_bif_suspend_process(smon, suspendee, s_rq);
- erts_smp_runqs_unlock(cp_rq, s_rq);
+ if (do_bif_suspend_process(BIF_P, smon, suspendee)) {
res = (!unless_suspending || smon->active == 1
? am_true
: am_false);
@@ -5737,8 +6383,7 @@ suspend_process_2(BIF_ALIST_2)
* This time with BIF_P->suspendee == BIF_ARG_1 (see
* above).
*/
- suspend_process(cp_rq, BIF_P);
- erts_smp_runqs_unlock(cp_rq, s_rq);
+ suspend_process(BIF_P, BIF_P);
goto yield;
}
}
@@ -5746,9 +6391,15 @@ suspend_process_2(BIF_ALIST_2)
}
#endif /* ERTS_SMP */
-
- ASSERT(suspendee->status == P_SUSPENDED || (asynchronous && smon->pending));
- ASSERT(suspendee->status == P_SUSPENDED || !smon->active);
+#ifdef DEBUG
+ {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&suspendee->state);
+ ASSERT((state & ERTS_PSFLG_SUSPENDED)
+ || (asynchronous && smon->pending));
+ ASSERT((state & ERTS_PSFLG_SUSPENDED)
+ || !smon->active);
+ }
+#endif
erts_smp_proc_unlock(suspendee, ERTS_PROC_LOCK_STATUS);
erts_smp_proc_unlock(BIF_P, xlocks);
@@ -5843,9 +6494,8 @@ resume_process_1(BIF_ALIST_1)
if (!suspendee)
goto no_suspendee;
- ASSERT(suspendee->status == P_SUSPENDED
- || (suspendee->status == P_GARBING
- && suspendee->gcstatus == P_SUSPENDED));
+ ASSERT(ERTS_PSFLG_SUSPENDED
+ & erts_smp_atomic32_read_nob(&suspendee->state));
resume_process(suspendee);
erts_smp_proc_unlock(suspendee, ERTS_PROC_LOCK_STATUS);
@@ -5874,449 +6524,46 @@ erts_run_queues_len(Uint *qlen)
Uint len = 0;
ERTS_ATOMIC_FOREACH_RUNQ(rq,
{
- if (qlen)
- qlen[i++] = rq->procs.len;
- len += rq->procs.len;
+ Sint pqlen = 0;
+ int pix;
+ for (pix = 0; pix < ERTS_NO_PROC_PRIO_LEVELS; pix++)
+ pqlen += RUNQ_READ_LEN(&rq->procs.prio_info[pix].len);
+
+ if (pqlen < 0)
+ pqlen = 0;
+ if (qlen)
+ qlen[i++] = pqlen;
+ len += pqlen;
}
);
return len;
}
-#ifdef HARDDEBUG_RUNQS
-static void
-check_procs_runq(ErtsRunQueue *runq, Process *p_in_q, Process *p_not_in_q)
-{
- int len[ERTS_NO_PROC_PRIO_LEVELS] = {0};
- int tot_len;
- int prioq, prio;
- int found_p_in_q;
- Process *p, *prevp;
-
- found_p_in_q = 0;
- for (prioq = 0; prioq < ERTS_NO_PROC_PRIO_LEVELS - 1; prioq++) {
- prevp = NULL;
- for (p = runq->procs.prio[prioq].first; p; p = p->next) {
- ASSERT(p != p_not_in_q);
- if (p == p_in_q)
- found_p_in_q = 1;
- switch (p->prio) {
- case PRIORITY_MAX:
- case PRIORITY_HIGH:
- case PRIORITY_NORMAL:
- ASSERT(prioq == p->prio);
- break;
- case PRIORITY_LOW:
- ASSERT(prioq == PRIORITY_NORMAL);
- break;
- default:
- ASSERT(!"Bad prio on process");
- }
- len[p->prio]++;
- ASSERT(prevp == p->prev);
- if (p->prev) {
- ASSERT(p->prev->next == p);
- }
- else {
- ASSERT(runq->procs.prio[prioq].first == p);
- }
- if (p->next) {
- ASSERT(p->next->prev == p);
- }
- else {
- ASSERT(runq->procs.prio[prioq].last == p);
- }
- ASSERT(p->run_queue == runq);
- prevp = p;
- }
- }
-
- ASSERT(!p_in_q || found_p_in_q);
-
- tot_len = 0;
- for (prio = 0; prio < ERTS_NO_PROC_PRIO_LEVELS; prio++) {
- ASSERT(len[prio] == runq->procs.prio_info[prio].len);
- if (len[prio]) {
- ASSERT(runq->flags & (1 << prio));
- }
- else {
- ASSERT(!(runq->flags & (1 << prio)));
- }
- tot_len += len[prio];
- }
- ASSERT(runq->procs.len == tot_len);
-}
-# define ERTS_DBG_CHK_PROCS_RUNQ(RQ) check_procs_runq((RQ), NULL, NULL)
-# define ERTS_DBG_CHK_PROCS_RUNQ_PROC(RQ, P) check_procs_runq((RQ), (P), NULL)
-# define ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(RQ, P) check_procs_runq((RQ), NULL, (P))
-#else
-# define ERTS_DBG_CHK_PROCS_RUNQ(RQ)
-# define ERTS_DBG_CHK_PROCS_RUNQ_PROC(RQ, P)
-# define ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(RQ, P)
-#endif
-
-
-static ERTS_INLINE void
-enqueue_process(ErtsRunQueue *runq, Process *p)
-{
- ErtsRunPrioQueue *rpq;
- ErtsRunQueueInfo *rqi;
-
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
-
- ASSERT(p->bound_runq || !(runq->flags & ERTS_RUNQ_FLG_SUSPENDED));
-
- rqi = &runq->procs.prio_info[p->prio];
- rqi->len++;
- if (rqi->max_len < rqi->len)
- rqi->max_len = rqi->len;
-
- runq->procs.len++;
- runq->len++;
- if (runq->max_len < runq->len)
- runq->max_len = runq->len;
-
- runq->flags |= (1 << p->prio);
-
- rpq = (p->prio == PRIORITY_LOW
- ? &runq->procs.prio[PRIORITY_NORMAL]
- : &runq->procs.prio[p->prio]);
-
- p->next = NULL;
- p->prev = rpq->last;
- if (rpq->last)
- rpq->last->next = p;
- else
- rpq->first = p;
- rpq->last = p;
-
- switch (p->status) {
- case P_EXITING:
- break;
- case P_GARBING:
- p->gcstatus = P_RUNABLE;
- break;
- default:
- p->status = P_RUNABLE;
- break;
- }
-
-#ifdef ERTS_SMP
- p->status_flags |= ERTS_PROC_SFLG_INRUNQ;
-#endif
-
- ERTS_DBG_CHK_PROCS_RUNQ_PROC(runq, p);
-}
-
-
-static ERTS_INLINE int
-dequeue_process(ErtsRunQueue *runq, Process *p)
-{
- ErtsRunPrioQueue *rpq;
- int res = 1;
-
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
-
- ERTS_DBG_CHK_PROCS_RUNQ(runq);
-
- rpq = &runq->procs.prio[p->prio == PRIORITY_LOW ? PRIORITY_NORMAL : p->prio];
- if (p->prev) {
- p->prev->next = p->next;
- }
- else if (rpq->first == p) {
- rpq->first = p->next;
- }
- else {
- res = 0;
- }
- if (p->next) {
- p->next->prev = p->prev;
- }
- else if (rpq->last == p) {
- rpq->last = p->prev;
- }
- else {
- ASSERT(res == 0);
- }
-
- if (res) {
-
- if (--runq->procs.prio_info[p->prio].len == 0)
- runq->flags &= ~(1 << p->prio);
- runq->procs.len--;
- runq->len--;
-
-#ifdef ERTS_SMP
- p->status_flags &= ~ERTS_PROC_SFLG_INRUNQ;
-#endif
- }
-
- ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p);
- return res;
-}
-
-/* schedule a process */
-static ERTS_INLINE ErtsRunQueue *
-internal_add_to_runq(ErtsRunQueue *runq, Process *p)
-{
- Uint32 prev_status = p->status;
- ErtsRunQueue *add_runq;
-#ifdef ERTS_SMP
-
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(runq));
-
- if (p->status_flags & ERTS_PROC_SFLG_INRUNQ)
- return NULL;
- else if (p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING) {
- ASSERT(ERTS_PROC_IS_EXITING(p) || p->rcount == 0);
- ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p);
- p->status_flags |= ERTS_PROC_SFLG_PENDADD2SCHEDQ;
- return NULL;
- }
- ASSERT(!p->scheduler_data);
-#endif
-
- ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(runq, p);
-#ifndef ERTS_SMP
- /* Never schedule a suspended process (ok in smp case) */
- ASSERT(ERTS_PROC_IS_EXITING(p) || p->rcount == 0);
- add_runq = runq;
-#else
- ASSERT(!p->bound_runq || p->bound_runq == p->run_queue);
- if (p->bound_runq) {
- if (p->bound_runq == runq)
- add_runq = runq;
- else {
- add_runq = p->bound_runq;
- erts_smp_xrunq_lock(runq, add_runq);
- }
- }
- else {
- add_runq = erts_check_emigration_need(runq, p->prio);
- if (!add_runq)
- add_runq = runq;
- else /* Process emigrated */
- p->run_queue = add_runq;
- }
-#endif
-
- /* Enqueue the process */
- enqueue_process(add_runq, p);
-
- if ((erts_system_profile_flags.runnable_procs)
- && (prev_status == P_WAITING
- || prev_status == P_SUSPENDED)) {
- profile_runnable_proc(p, am_active);
- }
-
- if (add_runq != runq)
- erts_smp_runq_unlock(add_runq);
-
- return add_runq;
-}
-
-
-void
-erts_add_to_runq(Process *p)
-{
- ErtsRunQueue *notify_runq;
- ErtsRunQueue *runq = erts_get_runq_proc(p);
- erts_smp_runq_lock(runq);
- notify_runq = internal_add_to_runq(runq, p);
- erts_smp_runq_unlock(runq);
- smp_notify_inc_runq(notify_runq);
-
-}
-
-/* Possibly remove a scheduled process we need to suspend */
-
-static int
-remove_proc_from_runq(ErtsRunQueue *rq, Process *p, int to_inactive)
-{
- int res;
-
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
-
-#ifdef ERTS_SMP
- if (p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ) {
- p->status_flags &= ~ERTS_PROC_SFLG_PENDADD2SCHEDQ;
- ASSERT(!remove_proc_from_runq(rq, p, 0));
- return 1;
- }
-#endif
-
- res = dequeue_process(rq, p);
-
- if (res && erts_system_profile_flags.runnable_procs && to_inactive)
- profile_runnable_proc(p, am_inactive);
-
-#ifdef ERTS_SMP
- ASSERT(!(p->status_flags & ERTS_PROC_SFLG_INRUNQ));
-#endif
-
- return res;
-}
-
-#ifdef ERTS_SMP
-
-ErtsMigrateResult
-erts_proc_migrate(Process *p, ErtsProcLocks *plcks,
- ErtsRunQueue *from_rq, int *from_locked,
- ErtsRunQueue *to_rq, int *to_locked)
-{
- ERTS_SMP_LC_ASSERT(*plcks == erts_proc_lc_my_proc_locks(p));
- ERTS_SMP_LC_ASSERT((ERTS_PROC_LOCK_STATUS & *plcks)
- || from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- /*
- * If we have the lock on the run queue to migrate to,
- * check that it isn't suspended. If it is suspended,
- * we will refuse to migrate to it anyway.
- */
- if (*to_locked && (to_rq->flags & ERTS_RUNQ_FLG_SUSPENDED))
- return ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED;
-
- /* We need status lock on process and locks on both run queues */
-
- if (!(ERTS_PROC_LOCK_STATUS & *plcks)) {
- if (erts_smp_proc_trylock(p, ERTS_PROC_LOCK_STATUS) == EBUSY) {
- ErtsProcLocks lcks = *plcks;
- Eterm pid = p->id;
- Process *proc = *plcks ? p : NULL;
-
- if (*from_locked) {
- *from_locked = 0;
- erts_smp_runq_unlock(from_rq);
- }
- if (*to_locked) {
- *to_locked = 0;
- erts_smp_runq_unlock(to_rq);
- }
-
- proc = erts_pid2proc_opt(proc,
- lcks,
- pid,
- lcks|ERTS_PROC_LOCK_STATUS,
- ERTS_P2P_FLG_ALLOW_OTHER_X);
- if (!proc) {
- *plcks = 0;
- return ERTS_MIGRATE_FAILED_NOT_IN_RUNQ;
- }
- ASSERT(proc == p);
- }
- *plcks |= ERTS_PROC_LOCK_STATUS;
- }
-
- ASSERT(!p->bound_runq);
-
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- if (p->run_queue != from_rq)
- return ERTS_MIGRATE_FAILED_RUNQ_CHANGED;
-
- if (!*from_locked || !*to_locked) {
- if (from_rq < to_rq) {
- if (!*to_locked) {
- if (!*from_locked)
- erts_smp_runq_lock(from_rq);
- erts_smp_runq_lock(to_rq);
- }
- else if (erts_smp_runq_trylock(from_rq) == EBUSY) {
- erts_smp_runq_unlock(to_rq);
- erts_smp_runq_lock(from_rq);
- erts_smp_runq_lock(to_rq);
- }
- }
- else {
- if (!*from_locked) {
- if (!*to_locked)
- erts_smp_runq_lock(to_rq);
- erts_smp_runq_lock(from_rq);
- }
- else if (erts_smp_runq_trylock(to_rq) == EBUSY) {
- erts_smp_runq_unlock(from_rq);
- erts_smp_runq_lock(to_rq);
- erts_smp_runq_lock(from_rq);
- }
- }
- *to_locked = *from_locked = 1;
- }
-
- ERTS_SMP_LC_CHK_RUNQ_LOCK(from_rq, *from_locked);
- ERTS_SMP_LC_CHK_RUNQ_LOCK(to_rq, *to_locked);
-
- /* Ok we now got all locks we need; do it... */
-
- /* Refuse to migrate to a suspended run queue */
- if (to_rq->flags & ERTS_RUNQ_FLG_SUSPENDED)
- return ERTS_MIGRATE_FAILED_RUNQ_SUSPENDED;
-
- if ((p->runq_flags & ERTS_PROC_RUNQ_FLG_RUNNING)
- || !(p->status_flags & ERTS_PROC_SFLG_INRUNQ))
- return ERTS_MIGRATE_FAILED_NOT_IN_RUNQ;
-
- dequeue_process(from_rq, p);
- p->run_queue = to_rq;
- enqueue_process(to_rq, p);
-
- return ERTS_MIGRATE_SUCCESS;
-}
-#endif /* ERTS_SMP */
-
Eterm
erts_process_status(Process *c_p, ErtsProcLocks c_p_locks,
Process *rp, Eterm rpid)
{
Eterm res = am_undefined;
- Process *p;
-
- if (rp) {
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS
- & erts_proc_lc_my_proc_locks(rp));
- p = rp;
- }
- else {
- p = erts_pid2proc_opt(c_p, c_p_locks,
- rpid, ERTS_PROC_LOCK_STATUS,
- ERTS_P2P_FLG_ALLOW_OTHER_X);
- }
+ Process *p = rp ? rp : erts_proc_lookup_raw(rpid);
if (p) {
- switch (p->status) {
- case P_RUNABLE:
- res = am_runnable;
- break;
- case P_WAITING:
- res = am_waiting;
- break;
- case P_RUNNING:
- res = am_running;
- break;
- case P_EXITING:
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ if (state & ERTS_PSFLG_FREE)
+ res = am_free;
+ else if (state & ERTS_PSFLG_EXITING)
res = am_exiting;
- break;
- case P_GARBING:
+ else if (state & ERTS_PSFLG_GC)
res = am_garbage_collecting;
- break;
- case P_SUSPENDED:
+ else if (state & ERTS_PSFLG_SUSPENDED)
res = am_suspended;
- break;
- case P_FREE: /* We cannot look up a process in P_FREE... */
- default: /* Not a valid status... */
- erl_exit(1, "Bad status (%b32u) found for process %T\n",
- p->status, p->id);
- break;
- }
-
-#ifdef ERTS_SMP
- if (!rp && (p != c_p || !(ERTS_PROC_LOCK_STATUS & c_p_locks)))
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
+ else if (state & ERTS_PSFLG_RUNNING)
+ res = am_running;
+ else if (state & ERTS_PSFLG_ACTIVE)
+ res = am_runnable;
+ else
+ res = am_waiting;
}
+#ifdef ERTS_SMP
else {
int i;
ErtsSchedulerData *esdp;
@@ -6331,42 +6578,40 @@ erts_process_status(Process *c_p, ErtsProcLocks c_p_locks,
}
erts_smp_runq_unlock(esdp->run_queue);
}
-
-#endif
-
}
-
+#endif
return res;
}
/*
-** Suspend a process
+** Suspend a currently executing process
** If we are to suspend on a port the busy_port is the thing
** otherwise busy_port is NIL
*/
void
-erts_suspend(Process* process, ErtsProcLocks process_locks, Port *busy_port)
+erts_suspend(Process* c_p, ErtsProcLocks c_p_locks, Port *busy_port)
{
- ErtsRunQueue *rq;
-
- ERTS_SMP_LC_ASSERT(process_locks == erts_proc_lc_my_proc_locks(process));
- if (!(process_locks & ERTS_PROC_LOCK_STATUS))
- erts_smp_proc_lock(process, ERTS_PROC_LOCK_STATUS);
-
- rq = erts_get_runq_proc(process);
-
- erts_smp_runq_lock(rq);
+#ifdef DEBUG
+ int res;
+#endif
+ ASSERT(c_p == erts_get_current_process());
+ ERTS_SMP_LC_ASSERT(c_p_locks == erts_proc_lc_my_proc_locks(c_p));
+ if (!(c_p_locks & ERTS_PROC_LOCK_STATUS))
+ erts_smp_proc_lock(c_p, ERTS_PROC_LOCK_STATUS);
- suspend_process(rq, process);
+#ifdef DEBUG
+ res =
+#endif
+ suspend_process(c_p, c_p);
- erts_smp_runq_unlock(rq);
+ ASSERT(res);
if (busy_port)
- erts_wake_process_later(busy_port, process);
+ erts_wake_process_later(busy_port, c_p);
- if (!(process_locks & ERTS_PROC_LOCK_STATUS))
- erts_smp_proc_unlock(process, ERTS_PROC_LOCK_STATUS);
+ if (!(c_p_locks & ERTS_PROC_LOCK_STATUS))
+ erts_smp_proc_unlock(c_p, ERTS_PROC_LOCK_STATUS);
}
@@ -6407,57 +6652,54 @@ erts_resume_processes(ErtsProcList *plp)
Eterm
erts_get_process_priority(Process *p)
{
- ErtsRunQueue *rq;
- Eterm value;
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- rq = erts_get_runq_proc(p);
- erts_smp_runq_lock(rq);
- switch(p->prio) {
- case PRIORITY_MAX: value = am_max; break;
- case PRIORITY_HIGH: value = am_high; break;
- case PRIORITY_NORMAL: value = am_normal; break;
- case PRIORITY_LOW: value = am_low; break;
- default: ASSERT(0); value = am_undefined; break;
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&p->state);
+ switch (state & ERTS_PSFLG_PRIO_MASK) {
+ case PRIORITY_MAX: return am_max;
+ case PRIORITY_HIGH: return am_high;
+ case PRIORITY_NORMAL: return am_normal;
+ case PRIORITY_LOW: return am_low;
+ default: ASSERT(0); return am_undefined;
}
- erts_smp_runq_unlock(rq);
- return value;
}
Eterm
-erts_set_process_priority(Process *p, Eterm new_value)
+erts_set_process_priority(Process *p, Eterm value)
{
- ErtsRunQueue *rq;
- Eterm old_value;
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
- rq = erts_get_runq_proc(p);
-#ifdef ERTS_SMP
- ASSERT(!(p->status_flags & ERTS_PROC_SFLG_INRUNQ));
-#endif
- erts_smp_runq_lock(rq);
- switch(p->prio) {
- case PRIORITY_MAX: old_value = am_max; break;
- case PRIORITY_HIGH: old_value = am_high; break;
- case PRIORITY_NORMAL: old_value = am_normal; break;
- case PRIORITY_LOW: old_value = am_low; break;
- default: ASSERT(0); old_value = am_undefined; break;
- }
- switch (new_value) {
- case am_max: p->prio = PRIORITY_MAX; break;
- case am_high: p->prio = PRIORITY_HIGH; break;
- case am_normal: p->prio = PRIORITY_NORMAL; break;
- case am_low: p->prio = PRIORITY_LOW; break;
- default: old_value = THE_NON_VALUE; break;
+ erts_aint32_t a, oprio, nprio;
+
+ switch (value) {
+ case am_max: nprio = (erts_aint32_t) PRIORITY_MAX; break;
+ case am_high: nprio = (erts_aint32_t) PRIORITY_HIGH; break;
+ case am_normal: nprio = (erts_aint32_t) PRIORITY_NORMAL; break;
+ case am_low: nprio = (erts_aint32_t) PRIORITY_LOW; break;
+ default: return THE_NON_VALUE; break;
}
- erts_smp_runq_unlock(rq);
- return old_value;
-}
-/* note that P_RUNNING is only set so that we don't try to remove
-** running processes from the schedule queue if they exit - a running
-** process not being in the schedule queue!!
-** Schedule for up to INPUT_REDUCTIONS context switches,
-** return 1 if more to do.
-*/
+ a = erts_smp_atomic32_read_nob(&p->state);
+ if (nprio == (a & ERTS_PSFLG_PRIO_MASK))
+ oprio = nprio;
+ else {
+ erts_aint32_t e, n;
+ do {
+ oprio = a & ERTS_PSFLG_PRIO_MASK;
+ n = e = a;
+
+ ASSERT(!(a & ERTS_PSFLG_IN_RUNQ));
+
+ n &= ~ERTS_PSFLG_PRIO_MASK;
+ n |= nprio;
+ a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e);
+ } while (a != e);
+ }
+
+ switch (oprio) {
+ case PRIORITY_MAX: return am_max;
+ case PRIORITY_HIGH: return am_high;
+ case PRIORITY_NORMAL: return am_normal;
+ case PRIORITY_LOW: return am_low;
+ default: ASSERT(0); return am_undefined;
+ }
+}
/*
* schedule() is called from BEAM (process_main()) or HiPE
@@ -6480,7 +6722,6 @@ erts_set_process_priority(Process *p, Eterm new_value)
Process *schedule(Process *p, int calls)
{
ErtsRunQueue *rq;
- ErtsRunPrioQueue *rpq;
erts_aint_t dt;
ErtsSchedulerData *esdp;
int context_reds;
@@ -6488,6 +6729,8 @@ Process *schedule(Process *p, int calls)
int input_reductions;
int actual_reds;
int reds;
+ Uint32 flags;
+ erts_aint32_t state = 0; /* Supress warning... */
#ifdef USE_VM_PROBES
if (p != NULL && DTRACE_ENABLED(process_unscheduled)) {
@@ -6543,92 +6786,60 @@ Process *schedule(Process *p, int calls)
erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- if ((erts_system_profile_flags.runnable_procs)
- && (p->status == P_WAITING)) {
- profile_runnable_proc(p, am_inactive);
- }
+ state = erts_smp_atomic32_read_acqb(&p->state);
if (IS_TRACED(p)) {
- if (IS_TRACED_FL(p, F_TRACE_CALLS) && p->status != P_FREE) {
+ if (IS_TRACED_FL(p, F_TRACE_CALLS) && !(state & ERTS_PSFLG_FREE)) {
erts_schedule_time_break(p, ERTS_BP_CALL_TIME_SCHEDULE_OUT);
}
- switch (p->status) {
- case P_EXITING:
- if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT))
- trace_sched(p, am_out_exiting);
- break;
- case P_FREE:
+ if (state & (ERTS_PSFLG_FREE|ERTS_PSFLG_EXITING)) {
if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT))
- trace_sched(p, am_out_exited);
- break;
- default:
+ trace_sched(p, ((state & ERTS_PSFLG_FREE)
+ ? am_out_exited
+ : am_out_exiting));
+ }
+ else {
if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED))
trace_sched(p, am_out);
else if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_PROCS))
trace_virtual_sched(p, am_out);
- break;
}
}
#ifdef ERTS_SMP
- if (ERTS_PROC_PENDING_EXIT(p)) {
- erts_handle_pending_exit(p,
- ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- p->status_flags |= ERTS_PROC_SFLG_PENDADD2SCHEDQ;
- }
-
- if (p->pending_suspenders) {
- handle_pending_suspend(p,
- ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- ASSERT(!(p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ)
- || p->rcount == 0);
- }
+ if (state & ERTS_PSFLG_PENDING_EXIT)
+ erts_handle_pending_exit(p, (ERTS_PROC_LOCK_MAIN
+ | ERTS_PROC_LOCK_STATUS));
+ if (p->pending_suspenders)
+ handle_pending_suspend(p, (ERTS_PROC_LOCK_MAIN
+ | ERTS_PROC_LOCK_STATUS));
#endif
- erts_smp_runq_lock(rq);
- ERTS_PROC_REDUCTIONS_EXECUTED(rq, p->prio, reds, actual_reds);
+ schedule_out_process(rq, state, p); /* Returns with rq locked! */
+
+ ERTS_PROC_REDUCTIONS_EXECUTED(rq,
+ (int) (state & ERTS_PSFLG_PRIO_MASK),
+ reds,
+ actual_reds);
esdp->current_process = NULL;
#ifdef ERTS_SMP
p->scheduler_data = NULL;
- p->runq_flags &= ~ERTS_PROC_RUNQ_FLG_RUNNING;
- p->status_flags &= ~ERTS_PROC_SFLG_RUNNING;
-
- if (p->status_flags & ERTS_PROC_SFLG_PENDADD2SCHEDQ) {
- ErtsRunQueue *notify_runq;
- p->status_flags &= ~ERTS_PROC_SFLG_PENDADD2SCHEDQ;
- notify_runq = internal_add_to_runq(rq, p);
- if (notify_runq != rq)
- smp_notify_inc_runq(notify_runq);
- }
#endif
- if (p->status == P_FREE) {
+ if (state & ERTS_PSFLG_FREE) {
#ifdef ERTS_SMP
ASSERT(esdp->free_process == p);
esdp->free_process = NULL;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- erts_smp_proc_dec_refc(p);
#else
erts_free_proc(p);
#endif
- } else {
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
}
-#ifdef ERTS_SMP
- {
- ErtsProcList *pnd_xtrs = rq->procs.pending_exiters;
- rq->procs.pending_exiters = NULL;
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
- if (pnd_xtrs) {
- erts_smp_runq_unlock(rq);
- handle_pending_exiters(pnd_xtrs);
- erts_smp_runq_lock(rq);
- }
-
- }
+#ifdef ERTS_SMP
ASSERT(!esdp->free_process);
#endif
ASSERT(!esdp->current_process);
@@ -6648,8 +6859,23 @@ Process *schedule(Process *p, int calls)
ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking());
check_activities_to_run: {
+#ifdef ERTS_SMP
+ ErtsMigrationPaths *mps;
+ ErtsMigrationPath *mp;
#ifdef ERTS_SMP
+ {
+ ErtsProcList *pnd_xtrs = rq->procs.pending_exiters;
+ rq->procs.pending_exiters = NULL;
+
+ if (pnd_xtrs) {
+ erts_smp_runq_unlock(rq);
+ handle_pending_exiters(pnd_xtrs);
+ erts_smp_runq_lock(rq);
+ }
+
+ }
+#endif
if (rq->check_balance_reds <= 0)
check_balance(rq);
@@ -6657,20 +6883,28 @@ Process *schedule(Process *p, int calls)
ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking());
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
- if (rq->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK)
- immigrate(rq);
+ mps = erts_get_migration_paths_managed();
+ mp = &mps->mpath[rq->ix];
+
+ if (mp->flags & ERTS_RUNQ_FLGS_IMMIGRATE_QMASK)
+ immigrate(rq, mp);
- continue_check_activities_to_run:
+ continue_check_activities_to_run:
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ continue_check_activities_to_run_known_flags:
- if (rq->flags & (ERTS_RUNQ_FLG_CHK_CPU_BIND
- | ERTS_RUNQ_FLG_SUSPENDED)) {
- if (rq->flags & ERTS_RUNQ_FLG_SUSPENDED) {
- ASSERT(erts_smp_atomic32_read_nob(&esdp->ssi->flags)
- & ERTS_SSI_FLG_SUSPENDED);
+
+ if (flags & (ERTS_RUNQ_FLG_CHK_CPU_BIND|ERTS_RUNQ_FLG_SUSPENDED)) {
+
+ if (flags & ERTS_RUNQ_FLG_SUSPENDED) {
suspend_scheduler(esdp);
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
}
- if (rq->flags & ERTS_RUNQ_FLG_CHK_CPU_BIND)
+ if (flags & ERTS_RUNQ_FLG_CHK_CPU_BIND) {
+ flags = ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_CHK_CPU_BIND);
+ flags &= ~ ERTS_RUNQ_FLG_CHK_CPU_BIND;
erts_sched_check_cpu_bind(esdp);
+ }
}
{
@@ -6699,14 +6933,12 @@ Process *schedule(Process *p, int calls)
}
#endif /* ERTS_SMP */
- ASSERT(rq->len == rq->procs.len + rq->ports.info.len);
-
- if ((rq->len == 0 && !rq->misc.start)
- || (rq->halt_in_progress
- && rq->ports.info.len == 0 && !rq->misc.start)) {
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ if ((!(flags & ERTS_RUNQ_FLGS_QMASK) && !rq->misc.start)
+ || (rq->halt_in_progress && ERTS_EMPTY_RUNQ_PORTS(rq))) {
+ /* Prepare for scheduler wait */
#ifdef ERTS_SMP
-
ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
rq->wakeup_other = 0;
@@ -6714,21 +6946,27 @@ Process *schedule(Process *p, int calls)
empty_runq(rq);
- if (rq->flags & ERTS_RUNQ_FLG_SUSPENDED) {
- ASSERT(erts_smp_atomic32_read_nob(&esdp->ssi->flags)
- & ERTS_SSI_FLG_SUSPENDED);
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ if (flags & ERTS_RUNQ_FLG_SUSPENDED) {
non_empty_runq(rq);
- goto continue_check_activities_to_run;
+ goto continue_check_activities_to_run_known_flags;
}
- else if (!(rq->flags & ERTS_RUNQ_FLG_INACTIVE)) {
+ else if (!(flags & ERTS_RUNQ_FLG_INACTIVE)) {
+ if (try_steal_task(rq)) {
+ non_empty_runq(rq);
+ goto continue_check_activities_to_run;
+ }
+
+ ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
+
/*
* Check for ERTS_RUNQ_FLG_SUSPENDED has to be done
* after trying to steal a task.
*/
- if (try_steal_task(rq)
- || (rq->flags & ERTS_RUNQ_FLG_SUSPENDED)) {
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ if (flags & ERTS_RUNQ_FLG_SUSPENDED) {
non_empty_runq(rq);
- goto continue_check_activities_to_run;
+ goto continue_check_activities_to_run_known_flags;
}
}
@@ -6759,6 +6997,7 @@ Process *schedule(Process *p, int calls)
erl_sys_schedule(1);
dt = erts_do_time_read_and_reset();
if (dt) erts_bump_timer(dt);
+
#ifdef ERTS_SMP
erts_smp_runq_lock(rq);
clear_sys_scheduling();
@@ -6772,14 +7011,14 @@ Process *schedule(Process *p, int calls)
exec_misc_ops(rq);
#ifdef ERTS_SMP
- wakeup_other.check(rq);
+ wakeup_other.check(rq, flags);
#endif
/*
* Find a new port to run.
*/
- if (rq->ports.info.len) {
+ if (RUNQ_READ_LEN(&rq->ports.info.len)) {
int have_outstanding_io;
have_outstanding_io = erts_port_task_execute(rq, &esdp->current_port);
if ((have_outstanding_io && fcalls > 2*input_reductions)
@@ -6806,159 +7045,122 @@ Process *schedule(Process *p, int calls)
/*
* Find a new process to run.
*/
- pick_next_process:
-
- ERTS_DBG_CHK_PROCS_RUNQ(rq);
-
- switch (rq->flags & ERTS_RUNQ_FLGS_PROCS_QMASK) {
- case MAX_BIT:
- case MAX_BIT|HIGH_BIT:
- case MAX_BIT|NORMAL_BIT:
- case MAX_BIT|LOW_BIT:
- case MAX_BIT|HIGH_BIT|NORMAL_BIT:
- case MAX_BIT|HIGH_BIT|LOW_BIT:
- case MAX_BIT|NORMAL_BIT|LOW_BIT:
- case MAX_BIT|HIGH_BIT|NORMAL_BIT|LOW_BIT:
- rpq = &rq->procs.prio[PRIORITY_MAX];
- break;
- case HIGH_BIT:
- case HIGH_BIT|NORMAL_BIT:
- case HIGH_BIT|LOW_BIT:
- case HIGH_BIT|NORMAL_BIT|LOW_BIT:
- rpq = &rq->procs.prio[PRIORITY_HIGH];
- break;
- case NORMAL_BIT:
- rpq = &rq->procs.prio[PRIORITY_NORMAL];
- break;
- case LOW_BIT:
- rpq = &rq->procs.prio[PRIORITY_NORMAL];
- break;
- case NORMAL_BIT|LOW_BIT:
- rpq = &rq->procs.prio[PRIORITY_NORMAL];
- ASSERT(rpq->first != NULL);
- p = rpq->first;
- if (p->prio == PRIORITY_LOW) {
- if (p == rpq->last || p->skipped >= RESCHEDULE_LOW-1)
- p->skipped = 0;
- else {
- /* skip it */
- p->skipped++;
- rpq->first = p->next;
- rpq->first->prev = NULL;
- rpq->last->next = p;
- p->prev = rpq->last;
- p->next = NULL;
- rpq->last = p;
+ pick_next_process: {
+ int prio_q;
+ int qmask;
+
+ flags = ERTS_RUNQ_FLGS_GET_NOB(rq);
+ qmask = (int) (flags & ERTS_RUNQ_FLGS_PROCS_QMASK);
+ switch (qmask & -qmask) {
+ case MAX_BIT:
+ prio_q = PRIORITY_MAX;
+ break;
+ case HIGH_BIT:
+ prio_q = PRIORITY_HIGH;
+ break;
+ case NORMAL_BIT:
+ case LOW_BIT:
+ prio_q = PRIORITY_NORMAL;
+ if (check_requeue_process(rq, PRIORITY_NORMAL))
goto pick_next_process;
- }
+ break;
+ case 0: /* No process at all */
+ default:
+ ASSERT(qmask == 0);
+ goto check_activities_to_run;
}
- break;
- case 0: /* No process at all */
- default:
- ASSERT((rq->flags & ERTS_RUNQ_FLGS_PROCS_QMASK) == 0);
- ASSERT(rq->procs.len == 0);
- goto check_activities_to_run;
- }
- BM_START_TIMER(system);
+ BM_START_TIMER(system);
- /*
- * Take the chosen process out of the queue.
- */
- ASSERT(rpq->first); /* Wrong qmask in rq->flags? */
- p = rpq->first;
-#ifdef ERTS_SMP
- ERTS_SMP_LC_ASSERT(rq == p->run_queue);
-#endif
- rpq->first = p->next;
- if (!rpq->first)
- rpq->last = NULL;
- else
- rpq->first->prev = NULL;
-
- p->next = p->prev = NULL;
-
- if (--rq->procs.prio_info[p->prio].len == 0)
- rq->flags &= ~(1 << p->prio);
- ASSERT(rq->procs.len > 0);
- rq->procs.len--;
- ASSERT(rq->len > 0);
- rq->len--;
+ /*
+ * Take the chosen process out of the queue.
+ */
+ p = dequeue_process(rq, prio_q, &state);
- {
- Uint32 ee_flgs = (ERTS_RUNQ_FLG_EVACUATE(p->prio)
- | ERTS_RUNQ_FLG_EMIGRATE(p->prio));
+ ASSERT(p); /* Wrong qmask in rq->flags? */
- if ((rq->flags & (ERTS_RUNQ_FLG_SUSPENDED|ee_flgs)) == ee_flgs)
- ERTS_UNSET_RUNQ_FLG_EVACUATE(rq->flags, p->prio);
- }
+ while (1) {
+ erts_aint32_t exp, new, tmp;
+ tmp = new = exp = state;
+ new &= ~ERTS_PSFLG_IN_RUNQ;
+ tmp = state & (ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_PENDING_EXIT);
+ if (tmp != ERTS_PSFLG_SUSPENDED)
+ new |= ERTS_PSFLG_RUNNING;
+ state = erts_smp_atomic32_cmpxchg_relb(&p->state, new, exp);
+ if (state == exp) {
+ tmp = state & (ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_PENDING_EXIT);
+ if (tmp == ERTS_PSFLG_SUSPENDED)
+ goto pick_next_process;
+ state = new;
+ break;
+ }
+ }
- ERTS_DBG_CHK_PROCS_RUNQ_NOPROC(rq, p);
+ rq->procs.context_switches++;
- rq->procs.context_switches++;
+ esdp->current_process = p;
- esdp->current_process = p;
+ }
#ifdef ERTS_SMP
- p->runq_flags |= ERTS_PROC_RUNQ_FLG_RUNNING;
erts_smp_runq_unlock(rq);
+ if (flags & ERTS_RUNQ_FLG_PROTECTED)
+ ERTS_RUNQ_FLGS_UNSET(rq, ERTS_RUNQ_FLG_PROTECTED);
+
ERTS_SMP_CHK_NO_PROC_LOCKS;
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
if (erts_sched_stat.enabled) {
+ int prio;
UWord old = ERTS_PROC_SCHED_ID(p,
(ERTS_PROC_LOCK_MAIN
| ERTS_PROC_LOCK_STATUS),
(UWord) esdp->no);
int migrated = old && old != esdp->no;
+ prio = (int) (state & ERTS_PSFLG_PRIO_MASK);
+
erts_smp_spin_lock(&erts_sched_stat.lock);
- erts_sched_stat.prio[p->prio].total_executed++;
- erts_sched_stat.prio[p->prio].executed++;
+ erts_sched_stat.prio[prio].total_executed++;
+ erts_sched_stat.prio[prio].executed++;
if (migrated) {
- erts_sched_stat.prio[p->prio].total_migrated++;
- erts_sched_stat.prio[p->prio].migrated++;
+ erts_sched_stat.prio[prio].total_migrated++;
+ erts_sched_stat.prio[prio].migrated++;
}
erts_smp_spin_unlock(&erts_sched_stat.lock);
}
- p->status_flags |= ERTS_PROC_SFLG_RUNNING;
- p->status_flags &= ~ERTS_PROC_SFLG_INRUNQ;
if (ERTS_PROC_PENDING_EXIT(p)) {
erts_handle_pending_exit(p,
ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS);
+ state = erts_smp_atomic32_read_nob(&p->state);
}
ASSERT(!p->scheduler_data);
p->scheduler_data = esdp;
-
#endif
- ASSERT(p->status != P_SUSPENDED); /* Never run a suspended process */
+ /* Never run a suspended process */
+ ASSERT(!(ERTS_PSFLG_SUSPENDED & erts_smp_atomic32_read_nob(&p->state)));
reds = context_reds;
if (IS_TRACED(p)) {
- switch (p->status) {
- case P_EXITING:
+ if (state & ERTS_PSFLG_EXITING) {
if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_EXIT))
trace_sched(p, am_in_exiting);
- break;
- default:
+ }
+ else {
if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED))
trace_sched(p, am_in);
else if (ARE_TRACE_FLAGS_ON(p, F_TRACE_SCHED_PROCS))
trace_virtual_sched(p, am_in);
- break;
}
if (IS_TRACED_FL(p, F_TRACE_CALLS)) {
erts_schedule_time_break(p, ERTS_BP_CALL_TIME_SCHEDULE_IN);
}
}
- if (p->status != P_EXITING)
- p->status = P_RUNNING;
-
erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
#ifdef ERTS_SMP
@@ -6966,7 +7168,7 @@ Process *schedule(Process *p, int calls)
erts_check_my_tracer_proc(p);
#endif
- if (!ERTS_PROC_IS_EXITING(p)
+ if (!(state & ERTS_PSFLG_EXITING)
&& ((FLAGS(p) & F_FORCE_GC)
|| (MSO(p).overhead > BIN_VHEAP_SZ(p)))) {
reds -= erts_garbage_collect(p, 0, p->arg_reg, p->arity);
@@ -7057,17 +7259,19 @@ erts_schedule_misc_op(void (*func)(void *), void *arg)
ErtsSchedulerData *esdp = erts_get_scheduler_data();
ErtsRunQueue *rq = esdp ? esdp->run_queue : ERTS_RUNQ_IX(0);
ErtsMiscOpList *molp = misc_op_list_alloc();
+#ifdef ERTS_SMP
+ ErtsMigrationPaths *mpaths = erts_get_migration_paths();
- erts_smp_runq_lock(rq);
-
- while (rq->misc.evac_runq) {
- ErtsRunQueue *tmp_rq = rq->misc.evac_runq;
- erts_smp_runq_unlock(rq);
- rq = tmp_rq;
- erts_smp_runq_lock(rq);
+ if (!mpaths)
+ rq = ERTS_RUNQ_IX(0);
+ else {
+ ErtsRunQueue *erq = mpaths->mpath[rq->ix].misc_evac_runq;
+ if (erq)
+ rq = erq;
}
+#endif
- ASSERT(!(rq->flags & ERTS_RUNQ_FLG_SUSPENDED));
+ erts_smp_runq_lock(rq);
molp->next = NULL;
molp->func = func;
@@ -7077,7 +7281,9 @@ erts_schedule_misc_op(void (*func)(void *), void *arg)
else
rq->misc.start = molp;
rq->misc.end = molp;
+
erts_smp_runq_unlock(rq);
+
smp_notify_inc_runq(rq);
}
@@ -7167,44 +7373,50 @@ erts_get_exact_total_reductions(Process *c_p, Uint *redsp, Uint *diffp)
Sint
erts_test_next_pid(int set, Uint next)
{
+ Uint64 lpd;
Sint res;
- Sint p_prev;
-
+ Eterm pid_data;
+ int first_pix = -1;
- erts_smp_mtx_lock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwlock(&erts_proc_tab_rwmtx);
- if (!set) {
- res = p_next < 0 ? -1 : (p_serial << p_serial_shift | p_next);
- }
+ if (!set)
+ lpd = last_pid_data_read_nob();
else {
- p_serial = (Sint) ((next >> p_serial_shift) & p_serial_mask);
- p_next = (Sint) (erts_process_tab_index_mask & next);
-
- if (p_next >= erts_max_processes) {
- p_next = 0;
- p_serial++;
- p_serial &= p_serial_mask;
+ lpd = (Uint64) next;
+ pid_data = (Eterm) (lpd & ERTS_PID_DATA_MASK__);
+ if (ERTS_INVALID_PID == make_internal_pid(pid_data)) {
+ lpd += erts_proc.max;
+ ASSERT(erts_pid_data2ix(pid_data)
+ == erts_pid_data2ix(lpd & ERTS_PID_DATA_MASK__));
}
+ last_pid_data_set_relb(lpd);
+ }
- p_prev = p_next;
-
- do {
- if (!process_tab[p_next])
- break;
- p_next++;
- if(p_next >= erts_max_processes) {
- p_next = 0;
- p_serial++;
- p_serial &= p_serial_mask;
+ while (1) {
+ int pix;
+ lpd++;
+ pix = (int) (lpd % erts_proc.max);
+ if (first_pix < 0)
+ first_pix = pix;
+ else if (pix == first_pix) {
+ res = -1;
+ break;
+ }
+ if (ERTS_AINT_NULL == erts_smp_atomic_read_nob(&erts_proc.tab[pix])) {
+ pid_data = (Eterm) (lpd & ERTS_PID_DATA_MASK__);
+ if (ERTS_INVALID_PID == make_internal_pid(pid_data)) {
+ lpd += erts_proc.max;
+ ASSERT(erts_pid_data2ix(pid_data)
+ == erts_pid_data2ix(lpd & ERTS_PID_DATA_MASK__));
}
- } while (p_prev != p_next);
-
- res = process_tab[p_next] ? -1 : (p_serial << p_serial_shift | p_next);
-
+ res = lpd & ERTS_PID_DATA_MASK__;
+ break;
+ }
}
- erts_smp_mtx_unlock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwunlock(&erts_proc_tab_rwmtx);
return res;
@@ -7213,6 +7425,8 @@ erts_test_next_pid(int set, Uint next)
Uint erts_process_count(void)
{
erts_aint32_t res = erts_smp_atomic32_read_nob(&process_count);
+ if (res > erts_proc.max)
+ return erts_proc.max;
ASSERT(res >= 0);
return (Uint) res;
}
@@ -7220,97 +7434,138 @@ Uint erts_process_count(void)
void
erts_free_proc(Process *p)
{
-#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP)
- erts_lcnt_proc_lock_destroy(p);
+#ifdef ERTS_SMP
+ erts_proc_lock_fin(p);
#endif
erts_free(ERTS_ALC_T_PROC, (void *) p);
}
-
/*
** Allocate process and find out where to place next process.
*/
static Process*
-alloc_process(void)
+alloc_process(ErtsRunQueue *rq, erts_aint32_t state)
{
-#ifdef ERTS_SMP
- erts_pix_lock_t *pix_lock;
-#endif
+ int pix;
Process* p;
- int p_prev;
+ Uint64 lpd, exp_lpd;
+ Eterm pid_data;
+ erts_aint32_t proc_count;
+#ifdef DEBUG
+ Eterm pid;
+#endif
- erts_smp_mtx_lock(&proc_tab_mtx);
+ erts_smp_rwmtx_rlock(&erts_proc_tab_rwmtx);
- if (p_next == -1) {
- p = NULL;
- goto error; /* Process table full! */
+ proc_count = erts_smp_atomic32_inc_read_acqb(&process_count);
+ if (proc_count > erts_proc.max) {
+ while (1) {
+ erts_aint32_t act_proc_count;
+
+ act_proc_count = erts_smp_atomic32_cmpxchg_relb(&process_count,
+ proc_count-1,
+ proc_count);
+ if (act_proc_count == proc_count)
+ goto system_limit;
+ proc_count = act_proc_count;
+ if (proc_count <= erts_proc.max)
+ break;
+ }
}
p = (Process*) erts_alloc_fnf(ERTS_ALC_T_PROC, sizeof(Process));
if (!p)
- goto error; /* ENOMEM */
+ goto enomem;
- p_last = p_next;
+ p->approx_started = erts_get_approx_time();
+ p->started_interval = get_proc_interval();
- erts_get_emu_time(&p->started);
+ lpd = last_pid_data_read_acqb();
-#ifdef ERTS_SMP
- pix_lock = ERTS_PIX2PIXLOCK(p_next);
- erts_pix_lock(pix_lock);
-#endif
- ASSERT(!process_tab[p_next]);
+ /* Reserve slot */
+ while (1) {
+ lpd++;
+ pix = erts_pid_data2ix((Eterm) (lpd & ERTS_PID_DATA_MASK__));
+ if (erts_smp_atomic_read_nob(&erts_proc.tab[pix]) == ERTS_AINT_NULL) {
+ erts_aint_t val;
+ val = erts_smp_atomic_cmpxchg_relb(&erts_proc.tab[pix],
+ ((erts_aint_t)
+ ERTS_PROC_LOCK_BUSY),
+ ERTS_AINT_NULL);
+
+ if (ERTS_AINT_NULL == val)
+ break;
+ }
+ }
- process_tab[p_next] = p;
- erts_smp_atomic32_inc_nob(&process_count);
- p->id = make_internal_pid(p_serial << p_serial_shift | p_next);
+ pid_data = (Eterm) lpd & ERTS_PID_DATA_MASK__;
+
+ p->id = make_internal_pid(pid_data);
if (p->id == ERTS_INVALID_PID) {
/* Do not use the invalid pid; change serial */
- p_serial++;
- p_serial &= p_serial_mask;
- p->id = make_internal_pid(p_serial << p_serial_shift | p_next);
+ lpd += erts_proc.max;
+ ASSERT(pix == erts_pid_data2ix((Eterm) (lpd & ERTS_PID_DATA_MASK__)));
+ pid_data = (Eterm) lpd & ERTS_PID_DATA_MASK__;
+ p->id = make_internal_pid(pid_data);
ASSERT(p->id != ERTS_INVALID_PID);
}
- ASSERT(internal_pid_serial(p->id) <= (erts_use_r9_pids_ports
- ? ERTS_MAX_PID_R9_SERIAL
- : ERTS_MAX_PID_SERIAL));
+
+ exp_lpd = last_pid_data_read_nob();
+
+ /* Move last pid data forward */
+ while (1) {
+ Uint64 act_lpd;
+ if (last_pid_data_cmp(lpd, exp_lpd) < 0)
+ break;
+ act_lpd = last_pid_data_cmpxchg_relb(lpd, exp_lpd);
+ if (act_lpd == exp_lpd)
+ break;
+ exp_lpd = act_lpd;
+ }
#ifdef ERTS_SMP
- erts_proc_lock_init(p); /* All locks locked */
- erts_pix_unlock(pix_lock);
+ RUNQ_SET_RQ(&p->run_queue, rq);
#endif
- p->rstatus = P_FREE;
- p->rcount = 0;
+ erts_smp_atomic32_init_relb(&p->state, state);
- /*
- * set p_next to the next available slot
- */
+#ifdef DEBUG
+ pid = p->id;
+#endif
- p_prev = p_next;
+#ifdef ERTS_SMP
+ erts_proc_lock_init(p); /* All locks locked */
+#endif
- while (1) {
- p_next++;
- if(p_next >= erts_max_processes) {
- p_serial++;
- p_serial &= p_serial_mask;
- p_next = 0;
- }
+ /* Move into slot reserved */
+#ifdef DEBUG
+ ASSERT(ERTS_PROC_LOCK_BUSY
+ == (Process *) erts_smp_atomic_xchg_relb(&erts_proc.tab[pix],
+ (erts_aint_t) p));
+#else
+ erts_smp_atomic_set_relb(&erts_proc.tab[pix], (erts_aint_t) p);
+#endif
- if (p_prev == p_next) {
- p_next = -1;
- break; /* Table full! */
- }
+ ASSERT(internal_pid_serial(p->id) <= (erts_use_r9_pids_ports
+ ? ERTS_MAX_PID_R9_SERIAL
+ : ERTS_MAX_PID_SERIAL));
- if (!process_tab[p_next])
- break; /* found a free slot */
- }
+ erts_smp_rwmtx_runlock(&erts_proc_tab_rwmtx);
- error:
+ p->rcount = 0;
- erts_smp_mtx_unlock(&proc_tab_mtx);
+ ASSERT(p == (Process *)
+ erts_smp_atomic_read_nob(
+ &erts_proc.tab[internal_pid_index(pid)]));
return p;
+enomem:
+system_limit:
+
+ erts_smp_rwmtx_runlock(&erts_proc_tab_rwmtx);
+ return NULL;
+
}
Eterm
@@ -7320,13 +7575,15 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
Eterm args, /* Arguments for function (must be well-formed list). */
ErlSpawnOpts* so) /* Options for spawn. */
{
- ErtsRunQueue *rq, *notify_runq;
+ ErtsRunQueue *rq = NULL;
Process *p;
Sint arity; /* Number of arguments. */
Uint arg_size; /* Size of arguments. */
Uint sz; /* Needed words on heap. */
Uint heap_need; /* Size needed on heap. */
Eterm res = THE_NON_VALUE;
+ erts_aint32_t state = 0;
+ erts_aint32_t prio = (erts_aint32_t) PRIORITY_NORMAL;
#ifdef ERTS_SMP
erts_smp_proc_lock(parent, ERTS_PROC_LOCKS_ALL_MINOR);
@@ -7340,8 +7597,24 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
so->error_code = BADARG;
goto error;
}
- p = alloc_process(); /* All proc locks are locked by this thread
- on success */
+
+ if (so->flags & SPO_USE_ARGS) {
+ if (so->scheduler) {
+ int ix = so->scheduler-1;
+ ASSERT(0 <= ix && ix < erts_no_run_queues);
+ rq = ERTS_RUNQ_IX(ix);
+ state |= ERTS_PSFLG_BOUND;
+ }
+ prio = (erts_aint32_t) so->priority;
+ }
+
+ state |= (prio & ERTS_PSFLG_PRIO_MASK);
+
+ if (!rq)
+ rq = erts_get_runq_proc(parent);
+
+ p = alloc_process(rq, state); /* All proc locks are locked by this thread
+ on success */
if (!p) {
erts_send_error_to_logger_str(parent->group_leader,
"Too many processes\n");
@@ -7361,22 +7634,16 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
p->flags = erts_default_process_flags;
- /* Scheduler queue mutex should be locked when changeing
- * prio. In this case we don't have to lock it, since
- * noone except us has access to the process.
- */
if (so->flags & SPO_USE_ARGS) {
p->min_heap_size = so->min_heap_size;
p->min_vheap_size = so->min_vheap_size;
- p->prio = so->priority;
p->max_gen_gcs = so->max_gen_gcs;
} else {
p->min_heap_size = H_MIN_SIZE;
p->min_vheap_size = BIN_VH_MIN_SIZE;
- p->prio = PRIORITY_NORMAL;
p->max_gen_gcs = (Uint16) erts_smp_atomic32_read_nob(&erts_max_gen_gcs);
}
- p->skipped = 0;
+ p->schedule_count = 0;
ASSERT(p->min_heap_size == erts_next_heap_size(p->min_heap_size, 0));
p->initial[INITIAL_MOD] = mod;
@@ -7478,7 +7745,6 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
p->msg_inq.first = NULL;
p->msg_inq.last = &p->msg_inq.first;
p->msg_inq.len = 0;
- p->bound_runq = NULL;
#endif
p->bif_timers = NULL;
p->mbuf = NULL;
@@ -7564,9 +7830,6 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
#ifdef ERTS_SMP
p->scheduler_data = NULL;
- p->is_exiting = 0;
- p->status_flags = 0;
- p->runq_flags = 0;
p->suspendee = NIL;
p->pending_suspenders = NULL;
p->pending_exit.reason = THE_NON_VALUE;
@@ -7577,34 +7840,15 @@ erl_create_process(Process* parent, /* Parent of process (default group leader).
p->fp_exception = 0;
#endif
+ erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL);
+
+ res = p->id;
+
/*
* Schedule process for execution.
*/
- if (!((so->flags & SPO_USE_ARGS) && so->scheduler))
- rq = erts_get_runq_proc(parent);
- else {
- int ix = so->scheduler-1;
- ASSERT(0 <= ix && ix < erts_no_run_queues);
- rq = ERTS_RUNQ_IX(ix);
- p->bound_runq = rq;
- }
-
- erts_smp_runq_lock(rq);
-
-#ifdef ERTS_SMP
- p->run_queue = rq;
-#endif
-
- p->status = P_WAITING;
- notify_runq = internal_add_to_runq(rq, p);
-
- erts_smp_runq_unlock(rq);
-
- smp_notify_inc_runq(notify_runq);
-
- res = p->id;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL);
+ schedule_process(p, state, 0);
VERBOSE(DEBUG_PROCESSES, ("Created a new process: %T\n",p->id));
@@ -7640,12 +7884,8 @@ void erts_init_empty_process(Process *p)
p->max_gen_gcs = 0;
p->min_heap_size = 0;
p->min_vheap_size = 0;
- p->status = P_RUNABLE;
- p->gcstatus = P_RUNABLE;
- p->rstatus = P_RUNABLE;
p->rcount = 0;
p->id = ERTS_INVALID_PID;
- p->prio = PRIORITY_NORMAL;
p->reds = 0;
p->tracer_proc = NIL;
p->trace_flags = F_INITIAL_TRACE_FLAGS;
@@ -7662,7 +7902,6 @@ void erts_init_empty_process(Process *p)
p->bin_vheap_mature = 0;
#ifdef ERTS_SMP
p->u.ptimer = NULL;
- p->bound_runq = NULL;
#else
memset(&(p->u.tm), 0, sizeof(ErlTimer));
#endif
@@ -7713,8 +7952,8 @@ void erts_init_empty_process(Process *p)
p->def_arg_reg[5] = 0;
p->parent = NIL;
- p->started.tv_sec = 0;
- p->started.tv_usec = 0;
+ p->approx_started = 0;
+ p->started_interval = 0;
#ifdef HIPE
hipe_init_process(&p->hipe);
@@ -7728,12 +7967,10 @@ void erts_init_empty_process(Process *p)
p->last_old_htop = NULL;
#endif
+ erts_smp_atomic32_init_nob(&p->state, (erts_aint32_t) PRIORITY_NORMAL);
#ifdef ERTS_SMP
p->scheduler_data = NULL;
- p->is_exiting = 0;
- p->status_flags = 0;
- p->runq_flags = 0;
p->msg_inq.first = NULL;
p->msg_inq.last = &p->msg_inq.first;
p->msg_inq.len = 0;
@@ -7743,7 +7980,7 @@ void erts_init_empty_process(Process *p)
p->pending_exit.bp = NULL;
erts_proc_lock_init(p);
erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL);
- p->run_queue = ERTS_RUNQ_IX(0);
+ RUNQ_SET_RQ(&p->run_queue, ERTS_RUNQ_IX(0));
#endif
#if !defined(NO_FPE_SIGNALS) || defined(HIPE)
@@ -7821,8 +8058,8 @@ erts_cleanup_empty_process(Process* p)
free_message_buffer(p->mbuf);
p->mbuf = NULL;
}
-#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP)
- erts_lcnt_proc_lock_destroy(p);
+#ifdef ERTS_SMP
+ erts_proc_lock_fin(p);
#endif
#ifdef DEBUG
erts_debug_verify_clean_empty_process(p);
@@ -7919,26 +8156,34 @@ delete_process(Process* p)
p->fvalue = NIL;
}
+static ERTS_INLINE erts_aint32_t
+set_proc_exiting_state(Process *p, erts_aint32_t state)
+{
+ erts_aint32_t a, n, e;
+ a = state;
+ while (1) {
+ n = e = a;
+ n &= ~(ERTS_PSFLG_SUSPENDED|ERTS_PSFLG_PENDING_EXIT);
+ n |= ERTS_PSFLG_EXITING|ERTS_PSFLG_ACTIVE;
+ if (!(a & (ERTS_PSFLG_IN_RUNQ|ERTS_PSFLG_RUNNING)))
+ n |= ERTS_PSFLG_IN_RUNQ;
+ a = erts_smp_atomic32_cmpxchg_relb(&p->state, n, e);
+ if (a == e)
+ break;
+ }
+ return a;
+}
+
static ERTS_INLINE void
-set_proc_exiting(Process *p, Eterm reason, ErlHeapFragment *bp)
+set_proc_exiting(Process *p,
+ erts_aint32_t state,
+ Eterm reason,
+ ErlHeapFragment *bp)
{
-#ifdef ERTS_SMP
- erts_pix_lock_t *pix_lock = ERTS_PID2PIXLOCK(p->id);
ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks(p) == ERTS_PROC_LOCKS_ALL);
- /*
- * You are required to have all proc locks and the pix lock when going
- * to status P_EXITING. This makes it is enough to take any lock when
- * looking up a process (pid2proc()) to prevent the looked up process
- * from exiting until the lock has been released.
- */
- erts_pix_lock(pix_lock);
- p->is_exiting = 1;
-#endif
- p->status = P_EXITING;
-#ifdef ERTS_SMP
- erts_pix_unlock(pix_lock);
-#endif
+ state = set_proc_exiting_state(p, state);
+
p->fvalue = reason;
if (bp)
erts_link_mbuf_to_proc(p, bp);
@@ -7951,6 +8196,14 @@ set_proc_exiting(Process *p, Eterm reason, ErlHeapFragment *bp)
KILL_CATCHES(p);
cancel_timer(p);
p->i = (BeamInstr *) beam_exit;
+
+ if (erts_system_profile_flags.runnable_procs
+ && !(state & (ERTS_PSFLG_ACTIVE|ERTS_PSFLG_SUSPENDED))) {
+ profile_runnable_proc(p, am_active);
+ }
+
+ if (!(state & (ERTS_PSFLG_IN_RUNQ|ERTS_PSFLG_RUNNING)))
+ add2runq(p, state);
}
@@ -7963,8 +8216,8 @@ erts_handle_pending_exit(Process *c_p, ErtsProcLocks locks)
ASSERT(is_value(c_p->pending_exit.reason));
ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks(c_p) == locks);
ERTS_SMP_LC_ASSERT(locks & ERTS_PROC_LOCK_MAIN);
- ERTS_SMP_LC_ASSERT(c_p->status != P_EXITING);
- ERTS_SMP_LC_ASSERT(c_p->status != P_FREE);
+ ERTS_SMP_LC_ASSERT(!((ERTS_PSFLG_EXITING|ERTS_PSFLG_FREE)
+ & erts_smp_atomic32_read_nob(&c_p->state)));
/* Ensure that all locks on c_p are locked before proceeding... */
if (locks == ERTS_PROC_LOCKS_ALL)
@@ -7977,7 +8230,10 @@ erts_handle_pending_exit(Process *c_p, ErtsProcLocks locks)
}
}
- set_proc_exiting(c_p, c_p->pending_exit.reason, c_p->pending_exit.bp);
+ set_proc_exiting(c_p,
+ erts_smp_atomic32_read_acqb(&c_p->state),
+ c_p->pending_exit.reason,
+ c_p->pending_exit.bp);
c_p->pending_exit.reason = THE_NON_VALUE;
c_p->pending_exit.bp = NULL;
@@ -7993,11 +8249,12 @@ handle_pending_exiters(ErtsProcList *pnd_xtrs)
while (plp) {
Process *p = erts_pid2proc(NULL, 0, plp->pid, ERTS_PROC_LOCKS_ALL);
if (p) {
- if (proclist_same(plp, p)
- && !(p->status_flags & ERTS_PROC_SFLG_RUNNING)) {
- ASSERT(p->status_flags & ERTS_PROC_SFLG_INRUNQ);
- ASSERT(ERTS_PROC_PENDING_EXIT(p));
- erts_handle_pending_exit(p, ERTS_PROC_LOCKS_ALL);
+ if (proclist_same(plp, p)) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ if (!(state & ERTS_PSFLG_RUNNING)) {
+ ASSERT(state & ERTS_PSFLG_PENDING_EXIT);
+ erts_handle_pending_exit(p, ERTS_PROC_LOCKS_ALL);
+ }
}
erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL);
}
@@ -8025,7 +8282,7 @@ save_pending_exiter(Process *p)
rq->procs.pending_exiters = plp;
erts_smp_runq_unlock(rq);
-
+ wake_scheduler(rq, 1);
}
#endif
@@ -8087,7 +8344,7 @@ send_exit_message(Process *to, ErtsProcLocks *to_locksp,
* SMP emulator). When the signal is received the receiver receives an
* 'EXIT' message if it is trapping exits; otherwise, it will either
* ignore the signal if the exit reason is normal, or go into an
- * exiting state (status P_EXITING). When a process has gone into the
+ * exiting state (ERTS_PSFLG_EXITING). When a process has gone into the
* exiting state it will not execute any more Erlang code, but it might
* take a while before it actually exits. The exit signal is being
* received when the 'EXIT' message is put in the message queue, the
@@ -8160,6 +8417,7 @@ send_exit_signal(Process *c_p, /* current process if and only
Uint32 flags /* flags */
)
{
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&rp->state);
Eterm rsn = reason == am_kill ? am_killed : reason;
ERTS_SMP_LC_ASSERT(*rp_locks == erts_proc_lc_my_proc_locks(rp));
@@ -8181,7 +8439,7 @@ send_exit_signal(Process *c_p, /* current process if and only
}
#endif
- if (ERTS_PROC_IS_TRAPPING_EXITS(rp)
+ if ((state & ERTS_PSFLG_TRAP_EXIT)
&& (reason != am_kill || (flags & ERTS_XSIG_FLG_IGN_KILL))) {
if (is_not_nil(token)
#ifdef USE_VM_PROBES
@@ -8197,9 +8455,7 @@ send_exit_signal(Process *c_p, /* current process if and only
}
else if (reason != am_normal || (flags & ERTS_XSIG_FLG_NO_IGN_NORMAL)) {
#ifdef ERTS_SMP
- if (!ERTS_PROC_PENDING_EXIT(rp) && !rp->is_exiting) {
- ASSERT(rp->status != P_EXITING);
- ASSERT(rp->status != P_FREE);
+ if (!(state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))) {
ASSERT(!rp->pending_exit.bp);
if (rp == c_p && (*rp_locks & ERTS_PROC_LOCK_MAIN)) {
@@ -8215,9 +8471,9 @@ send_exit_signal(Process *c_p, /* current process if and only
}
*rp_locks = ERTS_PROC_LOCKS_ALL;
}
- set_proc_exiting(c_p, rsn, NULL);
+ set_proc_exiting(c_p, state, rsn, NULL);
}
- else if (!(rp->status_flags & ERTS_PROC_SFLG_RUNNING)) {
+ else if (!(state & ERTS_PSFLG_RUNNING)) {
/* Process not running ... */
ErtsProcLocks need_locks = ~(*rp_locks) & ERTS_PROC_LOCKS_ALL;
if (need_locks
@@ -8234,6 +8490,7 @@ send_exit_signal(Process *c_p, /* current process if and only
/* ...and we have all locks on it... */
*rp_locks = ERTS_PROC_LOCKS_ALL;
set_proc_exiting(rp,
+ state,
(is_immed(rsn)
? rsn
: copy_object(rsn, rp)),
@@ -8263,11 +8520,9 @@ send_exit_signal(Process *c_p, /* current process if and only
&bp->off_heap);
rp->pending_exit.bp = bp;
}
- ASSERT(ERTS_PROC_PENDING_EXIT(rp));
+ erts_smp_atomic32_read_bor_relb(&rp->state,
+ ERTS_PSFLG_PENDING_EXIT);
}
- if (!(rp->status_flags
- & (ERTS_PROC_SFLG_INRUNQ|ERTS_PROC_SFLG_RUNNING)))
- erts_add_to_runq(rp);
}
/* else:
*
@@ -8279,17 +8534,14 @@ send_exit_signal(Process *c_p, /* current process if and only
* exit or by itself before seeing the pending exit.
*/
#else /* !ERTS_SMP */
- if (c_p == rp) {
- rp->status = P_EXITING;
- c_p->fvalue = rsn;
- }
- else if (rp->status != P_EXITING) { /* No recursive process exits /PaN */
- Eterm old_status = rp->status;
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&rp->state);
+ if (!(state & ERTS_PSFLG_EXITING)) {
set_proc_exiting(rp,
- is_immed(rsn) ? rsn : copy_object(rsn, rp),
+ state,
+ (is_immed(rsn) || c_p == rp
+ ? rsn
+ : copy_object(rsn, rp)),
NULL);
- if (old_status != P_RUNABLE && old_status != P_RUNNING)
- erts_add_to_runq(rp);
}
#endif
return -1; /* Receiver will exit */
@@ -8592,12 +8844,14 @@ resume_suspend_monitor(ErtsSuspendMonitor *smon, void *vc_p)
erts_destroy_suspend_monitor(smon);
}
-static void
-continue_exit_process(Process *p
#ifdef ERTS_SMP
- , erts_pix_lock_t *pix_lock
+static void
+proc_dec_refc(void *vproc)
+{
+ erts_smp_proc_dec_refc((Process *) vproc);
+}
#endif
- );
+
/* this function fishishes a process and propagates exit messages - called
by process_main when a process dies */
@@ -8605,9 +8859,8 @@ void
erts_do_exit_process(Process* p, Eterm reason)
{
#ifdef ERTS_SMP
- erts_pix_lock_t *pix_lock = ERTS_PID2PIXLOCK(p->id);
+ erts_aint32_t state;
#endif
-
p->arity = 0; /* No live registers */
p->fvalue = reason;
@@ -8625,27 +8878,17 @@ erts_do_exit_process(Process* p, Eterm reason)
#ifdef ERTS_SMP
ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
/* By locking all locks (main lock is already locked) when going
- to status P_EXITING, it is enough to take any lock when
+ to exiting state (ERTS_PSFLG_EXITING), it is enough to take any lock when
looking up a process (erts_pid2proc()) to prevent the looked up
process from exiting until the lock has been released. */
erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
#endif
-
- if (erts_system_profile_flags.runnable_procs && (p->status != P_WAITING)) {
- profile_runnable_proc(p, am_inactive);
- }
-
-#ifdef ERTS_SMP
- erts_pix_lock(pix_lock);
- p->is_exiting = 1;
-#endif
-
- p->status = P_EXITING;
-
-#ifdef ERTS_SMP
- erts_pix_unlock(pix_lock);
- if (ERTS_PROC_PENDING_EXIT(p)) {
+#ifndef ERTS_SMP
+ set_proc_exiting_state(p, erts_smp_atomic32_read_nob(&p->state));
+#else
+ state = set_proc_exiting_state(p, erts_smp_atomic32_read_nob(&p->state));
+ if (state & ERTS_PSFLG_PENDING_EXIT) {
/* Process exited before pending exit was received... */
p->pending_exit.reason = THE_NON_VALUE;
if (p->pending_exit.bp) {
@@ -8684,29 +8927,11 @@ erts_do_exit_process(Process* p, Eterm reason)
erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR);
-#ifdef ERTS_SMP
- continue_exit_process(p, pix_lock);
-#else
- continue_exit_process(p);
-#endif
+ erts_continue_exit_process(p);
}
void
-erts_continue_exit_process(Process *c_p)
-{
-#ifdef ERTS_SMP
- continue_exit_process(c_p, ERTS_PID2PIXLOCK(c_p->id));
-#else
- continue_exit_process(c_p);
-#endif
-}
-
-static void
-continue_exit_process(Process *p
-#ifdef ERTS_SMP
- , erts_pix_lock_t *pix_lock
-#endif
- )
+erts_continue_exit_process(Process *p)
{
ErtsLink* lnk;
ErtsMonitor *mon;
@@ -8722,11 +8947,7 @@ continue_exit_process(Process *p
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN == erts_proc_lc_my_proc_locks(p));
-#ifdef DEBUG
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- ASSERT(p->status == P_EXITING);
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
-#endif
+ ASSERT(ERTS_PROC_IS_EXITING(p));
#ifdef ERTS_SMP
if (p->flags & F_HAVE_BLCKD_MSCHED) {
@@ -8794,48 +9015,47 @@ continue_exit_process(Process *p
#endif
{
+ int maybe_save;
int pix;
/* Do *not* use erts_get_runq_proc() */
ErtsRunQueue *rq;
rq = erts_get_runq_current(ERTS_GET_SCHEDULER_DATA_FROM_PROC(p));
- ASSERT(internal_pid_index(p->id) < erts_max_processes);
pix = internal_pid_index(p->id);
- erts_smp_mtx_lock(&proc_tab_mtx);
+ erts_smp_rwmtx_rlock(&erts_proc_tab_rwmtx);
+ maybe_save = saved_term_procs.end != NULL;
+ if (maybe_save) {
+ erts_smp_rwmtx_runlock(&erts_proc_tab_rwmtx);
+ erts_smp_rwmtx_rwlock(&erts_proc_tab_rwmtx);
+ }
+
erts_smp_runq_lock(rq);
#ifdef ERTS_SMP
- erts_pix_lock(pix_lock);
-
ASSERT(p->scheduler_data);
ASSERT(p->scheduler_data->current_process == p);
ASSERT(p->scheduler_data->free_process == NULL);
p->scheduler_data->current_process = NULL;
p->scheduler_data->free_process = p;
- p->status_flags = 0;
#endif
- process_tab[pix] = NULL; /* Time of death! */
+ /* Time of death! */
+ erts_smp_atomic_set_relb(&erts_proc.tab[pix], ERTS_AINT_NULL);
+
ASSERT(erts_smp_atomic32_read_nob(&process_count) > 0);
- erts_smp_atomic32_dec_nob(&process_count);
+ erts_smp_atomic32_dec_relb(&process_count);
-#ifdef ERTS_SMP
- erts_pix_unlock(pix_lock);
-#endif
erts_smp_runq_unlock(rq);
- if (p_next < 0) {
- if (p_last >= p_next) {
- p_serial++;
- p_serial &= p_serial_mask;
- }
- p_next = pix;
+ if (!maybe_save)
+ erts_smp_rwmtx_runlock(&erts_proc_tab_rwmtx);
+ else {
+ if (saved_term_procs.end)
+ save_terminating_process(p);
+ erts_smp_rwmtx_rwunlock(&erts_proc_tab_rwmtx);
}
- ERTS_MAYBE_SAVE_TERMINATING_PROCESS(p);
-
- erts_smp_mtx_unlock(&proc_tab_mtx);
}
/*
@@ -8850,7 +9070,21 @@ continue_exit_process(Process *p
lnk = p->nlinks;
p->nlinks = NULL;
- p->status = P_FREE;
+
+ {
+ /* Inactivate and notify free */
+ erts_aint32_t n, e, a = erts_smp_atomic32_read_nob(&p->state);
+ while (1) {
+ n = e = a;
+ ASSERT(a & ERTS_PSFLG_EXITING);
+ n |= ERTS_PSFLG_FREE;
+ n &= ~ERTS_PSFLG_ACTIVE;
+ a = erts_smp_atomic32_cmpxchg_mb(&p->state, n, e);
+ if (a == e)
+ break;
+ }
+ }
+
dep = ((p->flags & F_DISTRIBUTION)
? ERTS_PROC_SET_DIST_ENTRY(p, ERTS_PROC_LOCKS_ALL, NULL)
: NULL);
@@ -8905,8 +9139,25 @@ continue_exit_process(Process *p
delete_process(p);
+#ifdef ERTS_SMP
+ /*
+ * Each scheduler will decrease refc by one via misc aux work;
+ * we have one refc for reference from process table which we
+ * now want to remove, i.e. we increase refc with schedulers-1.
+ *
+ * Process struct wont be deallocated until (earliest) when
+ * all schedulers have decreased refc via misc aux work...
+ */
+ if (erts_no_schedulers != 1)
+ erts_smp_proc_add_refc(p, (Sint32) erts_no_schedulers-1);
+ erts_schedule_multi_misc_aux_work(0,
+ erts_no_schedulers,
+ proc_dec_refc,
+ (void *) p);
+
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
+#endif
return;
@@ -8919,8 +9170,6 @@ continue_exit_process(Process *p
ERTS_SMP_LC_ASSERT(curr_locks == erts_proc_lc_my_proc_locks(p));
ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_MAIN & curr_locks);
- ASSERT(p->status == P_EXITING);
-
p->i = (BeamInstr *) beam_continue_exit;
if (!(curr_locks & ERTS_PROC_LOCK_STATUS)) {
@@ -8928,8 +9177,6 @@ continue_exit_process(Process *p
curr_locks |= ERTS_PROC_LOCK_STATUS;
}
- erts_add_to_runq(p);
-
if (curr_locks != ERTS_PROC_LOCK_MAIN)
erts_smp_proc_unlock(p, ~ERTS_PROC_LOCK_MAIN & curr_locks);
@@ -8941,33 +9188,15 @@ continue_exit_process(Process *p
static void
timeout_proc(Process* p)
{
+ erts_aint32_t state;
BeamInstr** pi = (BeamInstr **) p->def_arg_reg;
p->i = *pi;
p->flags |= F_TIMO;
p->flags &= ~F_INSLPQUEUE;
- switch (p->status) {
- case P_GARBING:
- switch (p->gcstatus) {
- case P_SUSPENDED:
- goto suspended;
- case P_WAITING:
- goto waiting;
- default:
- break;
- }
- break;
- case P_WAITING:
- waiting:
- erts_add_to_runq(p);
- break;
- case P_SUSPENDED:
- suspended:
- p->rstatus = P_RUNABLE; /* MUST set resume status to runnable */
- break;
- default:
- break;
- }
+ state = erts_smp_atomic32_read_acqb(&p->state);
+ if (!(state & ERTS_PSFLG_ACTIVE))
+ schedule_process(p, state, 0);
}
@@ -9035,6 +9264,7 @@ erts_stack_dump(int to, void *to_arg, Process *p)
void
erts_program_counter_info(int to, void *to_arg, Process *p)
{
+ erts_aint32_t state;
int i;
erts_print(to, to_arg, "Program counter: %p (", p->i);
@@ -9043,7 +9273,8 @@ erts_program_counter_info(int to, void *to_arg, Process *p)
erts_print(to, to_arg, "CP: %p (", p->cp);
print_function_from_pc(to, to_arg, p->cp);
erts_print(to, to_arg, ")\n");
- if (!((p->status == P_RUNNING) || (p->status == P_GARBING))) {
+ state = erts_smp_atomic32_read_acqb(&p->state);
+ if (!(state & (ERTS_PSFLG_RUNNING|ERTS_PSFLG_GC))) {
erts_print(to, to_arg, "arity = %d\n",p->arity);
if (!ERTS_IS_CRASH_DUMPING) {
/*
@@ -9216,13 +9447,13 @@ do { \
#endif
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
-# define ERTS_PROCS_DBG_CHK_PID_FOUND(PBDP, PID, TVP) \
- debug_processes_check_found_pid((PBDP), (PID), (TVP), 1)
-# define ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(PBDP, PID, TVP) \
- debug_processes_check_found_pid((PBDP), (PID), (TVP), 0)
+# define ERTS_PROCS_DBG_CHK_PID_FOUND(PBDP, PID, IC) \
+ debug_processes_check_found_pid((PBDP), (PID), (IC), 1)
+# define ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(PBDP, PID, IC) \
+ debug_processes_check_found_pid((PBDP), (PID), (IC), 0)
#else
-# define ERTS_PROCS_DBG_CHK_PID_FOUND(PBDP, PID, TVP)
-# define ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(PBDP, PID, TVP)
+# define ERTS_PROCS_DBG_CHK_PID_FOUND(PBDP, PID, IC)
+# define ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(PBDP, PID, IC)
#endif
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST
@@ -9267,7 +9498,7 @@ static Uint processes_bif_tab_chunks;
static Export processes_trap_export;
typedef struct {
- SysTimeval time;
+ Uint64 interval;
} ErtsProcessesBifChunkInfo;
typedef enum {
@@ -9292,7 +9523,7 @@ typedef struct {
struct {
Eterm caller;
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
- SysTimeval *pid_started;
+ Uint64 *pid_started;
#endif
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_HALLOC
Eterm *heap;
@@ -9321,11 +9552,10 @@ static void debug_processes_verify_all_pids(ErtsProcessesBifData *pbdp);
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
static void debug_processes_check_found_pid(ErtsProcessesBifData *pbdp,
Eterm pid,
- SysTimeval *started,
+ Uint64 ic,
int pid_should_be_found);
#endif
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST
-static SysTimeval debug_tv_start;
static void debug_processes_check_term_proc_list(void);
static void debug_processes_check_term_proc_free_list(ErtsTermProcElement *tpep);
#endif
@@ -9336,7 +9566,7 @@ save_terminating_process(Process *p)
ErtsTermProcElement *tpep = erts_alloc(ERTS_ALC_T_PROCS_TPROC_EL,
sizeof(ErtsTermProcElement));
ERTS_PROCS_ASSERT(saved_term_procs.start && saved_term_procs.end);
- ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx));
+ ERTS_SMP_LC_ASSERT(erts_lc_rwmtx_is_rwlocked(&erts_proc_tab_rwmtx));
ERTS_PROCS_DBG_CHK_TPLIST();
@@ -9344,19 +9574,19 @@ save_terminating_process(Process *p)
tpep->next = NULL;
tpep->ix = internal_pid_index(p->id);
tpep->u.process.pid = p->id;
- tpep->u.process.spawned = p->started;
- erts_get_emu_time(&tpep->u.process.exited);
+ tpep->u.process.spawned = p->started_interval;
+ tpep->u.process.exited = get_proc_interval();
saved_term_procs.end->next = tpep;
saved_term_procs.end = tpep;
ERTS_PROCS_DBG_CHK_TPLIST();
- ERTS_PROCS_ASSERT((tpep->prev->ix >= 0
- ? erts_cmp_timeval(&tpep->u.process.exited,
- &tpep->prev->u.process.exited)
- : erts_cmp_timeval(&tpep->u.process.exited,
- &tpep->prev->u.bif_invocation.time)) > 0);
+ ERTS_PROCS_ASSERT(tpep->prev->ix >= 0
+ ? (tpep->u.process.exited
+ >= tpep->prev->u.process.exited)
+ : (tpep->u.process.exited
+ >= tpep->prev->u.bif_invocation.interval));
}
static void
@@ -9387,7 +9617,7 @@ cleanup_processes_bif_data(Binary *bp)
if (pbdp->bif_invocation) {
ErtsTermProcElement *tpep;
- erts_smp_mtx_lock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwlock(&erts_proc_tab_rwmtx);
ERTS_PROCS_DBG_TRACE(pbdp->debug.caller,
cleanup_processes_bif_data,
@@ -9441,7 +9671,7 @@ cleanup_processes_bif_data(Binary *bp)
ERTS_PROCS_DBG_CHK_TPLIST();
- erts_smp_mtx_unlock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwunlock(&erts_proc_tab_rwmtx);
}
}
@@ -9469,7 +9699,7 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
pbdp->tix = 0;
pbdp->pid_ix = 0;
- erts_smp_mtx_lock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwlock(&erts_proc_tab_rwmtx);
locked = 1;
ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, init);
@@ -9480,7 +9710,7 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
pbdp->debug.pid_started = erts_alloc(ERTS_ALC_T_PROCS_PIDS,
- sizeof(SysTimeval)*pbdp->pid_sz);
+ sizeof(Uint64)*pbdp->pid_sz);
#endif
ERTS_PROCS_DBG_SAVE_PIDS(pbdp);
@@ -9495,7 +9725,8 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
pbdp->bif_invocation = erts_alloc(ERTS_ALC_T_PROCS_TPROC_EL,
sizeof(ErtsTermProcElement));
pbdp->bif_invocation->ix = -1;
- erts_get_emu_time(&pbdp->bif_invocation->u.bif_invocation.time);
+ pbdp->bif_invocation->u.bif_invocation.interval
+ = step_proc_interval();
ERTS_PROCS_DBG_CHK_TPLIST();
pbdp->bif_invocation->next = NULL;
@@ -9522,30 +9753,31 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
int indices = ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE;
int cix = ix / ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE;
int end_ix = ix + indices;
- SysTimeval *invocation_timep;
+ Uint64 *invocation_interval_p;
- invocation_timep = (pbdp->bif_invocation
- ? &pbdp->bif_invocation->u.bif_invocation.time
- : NULL);
+ invocation_interval_p
+ = (pbdp->bif_invocation
+ ? &pbdp->bif_invocation->u.bif_invocation.interval
+ : NULL);
ERTS_PROCS_ASSERT(is_nil(*res_accp));
if (!locked) {
- erts_smp_mtx_lock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwlock(&erts_proc_tab_rwmtx);
locked = 1;
}
- ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx));
+ ERTS_SMP_LC_ASSERT(erts_lc_rwmtx_is_rwlocked(&erts_proc_tab_rwmtx));
ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, insp_table);
if (cix != 0)
- erts_get_emu_time(&pbdp->chunk[cix].time);
+ pbdp->chunk[cix].interval = step_proc_interval();
else if (pbdp->bif_invocation)
- pbdp->chunk[0].time = *invocation_timep;
- /* else: Time is irrelevant */
+ pbdp->chunk[0].interval = *invocation_interval_p;
+ /* else: interval is irrelevant */
- if (end_ix >= erts_max_processes) {
+ if (end_ix >= erts_proc.max) {
ERTS_PROCS_ASSERT(cix+1 == processes_bif_tab_chunks);
- end_ix = erts_max_processes;
+ end_ix = erts_proc.max;
indices = end_ix - ix;
/* What to do when done with this chunk */
pbdp->state = (processes_bif_tab_chunks == 1
@@ -9554,16 +9786,15 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
}
for (; ix < end_ix; ix++) {
- Process *rp = process_tab[ix];
+ Process *rp = erts_pix2proc(ix);
if (rp
- && (!invocation_timep
- || erts_cmp_timeval(&rp->started,
- invocation_timep) < 0)) {
+ && (!invocation_interval_p
+ || rp->started_interval < *invocation_interval_p)) {
ERTS_PROCS_ASSERT(is_internal_pid(rp->id));
pbdp->pid[pbdp->pid_ix] = rp->id;
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
- pbdp->debug.pid_started[pbdp->pid_ix] = rp->started;
+ pbdp->debug.pid_started[pbdp->pid_ix] = rp->started_interval;
#endif
pbdp->pid_ix++;
@@ -9573,7 +9804,7 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
pbdp->tix = end_ix;
- erts_smp_mtx_unlock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwunlock(&erts_proc_tab_rwmtx);
locked = 0;
reds = indices/ERTS_PROCESSES_BIF_TAB_INSPECT_INDICES_PER_RED;
@@ -9585,8 +9816,8 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
ix = pbdp->tix;
indices = ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE;
end_ix = ix + indices;
- if (end_ix > erts_max_processes) {
- end_ix = erts_max_processes;
+ if (end_ix > erts_proc.max) {
+ end_ix = erts_proc.max;
indices = end_ix - ix;
}
@@ -9605,20 +9836,20 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
int i;
int max_reds;
int free_term_procs = 0;
- SysTimeval *invocation_timep;
+ Uint64 invocation_interval;
ErtsTermProcElement *tpep;
ErtsTermProcElement *free_list = NULL;
tpep = pbdp->bif_invocation;
ERTS_PROCS_ASSERT(tpep);
- invocation_timep = &tpep->u.bif_invocation.time;
+ invocation_interval = tpep->u.bif_invocation.interval;
max_reds = have_reds = ERTS_BIF_REDS_LEFT(p);
if (max_reds > ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS)
max_reds = ERTS_PROCESSES_INSPECT_TERM_PROC_MAX_REDS;
reds = 0;
- erts_smp_mtx_lock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwlock(&erts_proc_tab_rwmtx);
ERTS_PROCS_DBG_TRACE(p->id, processes_bif_engine, insp_term_procs);
ERTS_PROCS_DBG_CHK_TPLIST();
@@ -9657,20 +9888,19 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
}
else {
int cix = tpep->ix/ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE;
- SysTimeval *chunk_timep = &pbdp->chunk[cix].time;
+ Uint64 chunk_interval = pbdp->chunk[cix].interval;
Eterm pid = tpep->u.process.pid;
ERTS_PROCS_ASSERT(is_internal_pid(pid));
- if (erts_cmp_timeval(&tpep->u.process.spawned,
- invocation_timep) < 0) {
- if (erts_cmp_timeval(&tpep->u.process.exited,
- chunk_timep) < 0) {
+ if (tpep->u.process.spawned < invocation_interval) {
+ if (tpep->u.process.exited < chunk_interval) {
ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(pbdp,
pid,
- &tpep->u.process.spawned);
+ tpep->u.process.spawned);
pbdp->pid[pbdp->pid_ix] = pid;
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
- pbdp->debug.pid_started[pbdp->pid_ix] = tpep->u.process.spawned;
+ pbdp->debug.pid_started[pbdp->pid_ix]
+ = tpep->u.process.spawned;
#endif
pbdp->pid_ix++;
ERTS_PROCS_ASSERT(pbdp->pid_ix <= pbdp->pid_sz);
@@ -9678,13 +9908,13 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
else {
ERTS_PROCS_DBG_CHK_PID_FOUND(pbdp,
pid,
- &tpep->u.process.spawned);
+ tpep->u.process.spawned);
}
}
else {
ERTS_PROCS_DBG_CHK_PID_NOT_FOUND(pbdp,
pid,
- &tpep->u.process.spawned);
+ tpep->u.process.spawned);
}
i++;
@@ -9733,7 +9963,7 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
ERTS_PROCS_DBG_CHK_TPLIST();
ERTS_PROCS_DBG_CHK_FREELIST(free_list);
- erts_smp_mtx_unlock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwunlock(&erts_proc_tab_rwmtx);
/*
* We do the actual free of term proc structures now when we
@@ -9793,8 +10023,9 @@ processes_bif_engine(Process *p, Eterm *res_accp, Binary *mbp)
sizeof(Eterm)*pbdp->pid_sz);
#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_FOUND_PIDS
pbdp->debug.pid_started = erts_realloc(ERTS_ALC_T_PROCS_PIDS,
- pbdp->debug.pid_started,
- sizeof(SysTimeval)*pbdp->pid_sz);
+ pbdp->debug.pid_started,
+ (sizeof(Uint64)
+ * pbdp->pid_sz));
#endif
}
reds = conses/ERTS_PROCESSES_BIF_BUILD_RESULT_CONSES_PER_RED;
@@ -9914,22 +10145,13 @@ init_processes_bif(void)
{
saved_term_procs.start = NULL;
saved_term_procs.end = NULL;
- processes_bif_tab_chunks = (((erts_max_processes - 1)
+ processes_bif_tab_chunks = (((erts_proc.max - 1)
/ ERTS_PROCESSES_BIF_TAB_CHUNK_SIZE)
+ 1);
/* processes_trap/2 is a hidden BIF that the processes/0 BIF traps to. */
- sys_memset((void *) &processes_trap_export, 0, sizeof(Export));
- processes_trap_export.address = &processes_trap_export.code[3];
- processes_trap_export.code[0] = am_erlang;
- processes_trap_export.code[1] = am_processes_trap;
- processes_trap_export.code[2] = 2;
- processes_trap_export.code[3] = (BeamInstr) em_apply_bif;
- processes_trap_export.code[4] = (BeamInstr) &processes_trap;
-
-#if ERTS_PROCESSES_BIF_DEBUGLEVEL >= ERTS_PROCS_DBGLVL_CHK_TERM_PROC_LIST
- erts_get_emu_time(&debug_tv_start);
-#endif
+ erts_init_trap_export(&processes_trap_export, am_erlang, am_processes_trap, 2,
+ &processes_trap);
}
@@ -9962,31 +10184,29 @@ erts_debug_processes(Process *c_p)
Eterm res;
Eterm* hp;
Process *p;
-#ifdef DEBUG
Eterm *hp_end;
-#endif
- erts_smp_mtx_lock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwlock(&erts_proc_tab_rwmtx);
res = NIL;
need = erts_process_count() * 2;
hp = HAlloc(c_p, need); /* we need two heap words for each pid */
-#ifdef DEBUG
hp_end = hp + need;
-#endif
/* make the list by scanning bakward */
- for (i = erts_max_processes-1; i >= 0; i--) {
- if ((p = process_tab[i]) != NULL) {
- res = CONS(hp, process_tab[i]->id, res);
+ for (i = erts_proc.max-1; i >= 0; i--) {
+ p = erts_pix2proc(i);
+ if (p) {
+ res = CONS(hp, p->id, res);
hp += 2;
}
}
- ASSERT(hp == hp_end);
- erts_smp_mtx_unlock(&proc_tab_mtx);
+ erts_smp_rwmtx_rwunlock(&erts_proc_tab_rwmtx);
+
+ HRelease(c_p, hp_end, hp);
return res;
}
@@ -10018,14 +10238,12 @@ erts_debug_processes_bif_info(Process *c_p)
static void
debug_processes_check_found_pid(ErtsProcessesBifData *pbdp,
Eterm pid,
- SysTimeval *tvp,
+ Uint64 ic,
int pid_should_be_found)
{
int i;
for (i = 0; i < pbdp->pid_ix; i++) {
- if (pbdp->pid[i] == pid
- && pbdp->debug.pid_started[i].tv_sec == tvp->tv_sec
- && pbdp->debug.pid_started[i].tv_usec == tvp->tv_usec) {
+ if (pbdp->pid[i] == pid && pbdp->debug.pid_started[i] == ic) {
ERTS_PROCS_ASSERT(pid_should_be_found);
return;
}
@@ -10059,8 +10277,8 @@ debug_processes_save_all_pids(ErtsProcessesBifData *pbdp)
pbdp->debug.correct_pids = erts_alloc(ERTS_ALC_T_PROCS_PIDS,
sizeof(Eterm)*pbdp->pid_sz);
- for (tix = 0, cpix = 0; tix < erts_max_processes; tix++) {
- Process *rp = process_tab[tix];
+ for (tix = 0, cpix = 0; tix < erts_proc.max; tix++) {
+ Process *rp = erts_pix2proc(tix);
if (rp) {
ERTS_PROCS_ASSERT(is_internal_pid(rp->id));
pbdp->debug.correct_pids[cpix++] = rp->id;
@@ -10113,14 +10331,13 @@ debug_processes_verify_all_pids(ErtsProcessesBifData *pbdp)
static void
debug_processes_check_term_proc_list(void)
{
- ERTS_SMP_LC_ASSERT(erts_lc_mtx_is_locked(&proc_tab_mtx));
+ ERTS_SMP_LC_ASSERT(erts_lc_rwmtx_is_rwlocked(&erts_proc_tab_rwmtx));
if (!saved_term_procs.start)
ERTS_PROCS_ASSERT(!saved_term_procs.end);
else {
- SysTimeval tv_now;
- SysTimeval *prev_xtvp = NULL;
+ Uint64 curr_interval = get_proc_interval();
+ Uint64 *prev_x_interval_p = NULL;
ErtsTermProcElement *tpep;
- erts_get_emu_time(&tv_now);
for (tpep = saved_term_procs.start; tpep; tpep = tpep->next) {
if (!tpep->prev)
@@ -10132,20 +10349,17 @@ debug_processes_check_term_proc_list(void)
else
ERTS_PROCS_ASSERT(tpep->next->prev == tpep);
if (tpep->ix < 0) {
- SysTimeval *tvp = &tpep->u.bif_invocation.time;
- ERTS_PROCS_ASSERT(erts_cmp_timeval(&debug_tv_start, tvp) < 0
- && erts_cmp_timeval(tvp, &tv_now) < 0);
+ Uint64 interval = tpep->u.bif_invocation.interval;
+ ERTS_PROCS_ASSERT(interval <= curr_interval);
}
else {
- SysTimeval *stvp = &tpep->u.process.spawned;
- SysTimeval *xtvp = &tpep->u.process.exited;
+ Uint64 s_interval = tpep->u.process.spawned;
+ Uint64 x_interval = tpep->u.process.exited;
- ERTS_PROCS_ASSERT(erts_cmp_timeval(&debug_tv_start,
- stvp) < 0);
- ERTS_PROCS_ASSERT(erts_cmp_timeval(stvp, xtvp) < 0);
- if (prev_xtvp)
- ERTS_PROCS_ASSERT(erts_cmp_timeval(prev_xtvp, xtvp) < 0);
- prev_xtvp = xtvp;
+ ERTS_PROCS_ASSERT(s_interval <= x_interval);
+ if (prev_x_interval_p)
+ ERTS_PROCS_ASSERT(*prev_x_interval_p <= x_interval);
+ prev_x_interval_p = &tpep->u.process.exited;
ERTS_PROCS_ASSERT(is_internal_pid(tpep->u.process.pid));
ERTS_PROCS_ASSERT(tpep->ix
== internal_pid_index(tpep->u.process.pid));
diff --git a/erts/emulator/beam/erl_process.h b/erts/emulator/beam/erl_process.h
index 5b79c40d93..93e71681da 100644
--- a/erts/emulator/beam/erl_process.h
+++ b/erts/emulator/beam/erl_process.h
@@ -112,28 +112,29 @@ extern int erts_sched_thread_suggested_stack_size;
#define PRIORITY_NORMAL 2
#define PRIORITY_LOW 3
#define ERTS_NO_PROC_PRIO_LEVELS 4
+#define ERTS_NO_PROC_PRIO_QUEUES 3
#define ERTS_PORT_PRIO_LEVEL ERTS_NO_PROC_PRIO_LEVELS
+#define ERTS_NO_PRIO_LEVELS (ERTS_NO_PROC_PRIO_LEVELS + 1)
#define ERTS_RUNQ_FLGS_PROCS_QMASK \
((((Uint32) 1) << ERTS_NO_PROC_PRIO_LEVELS) - 1)
-#define ERTS_NO_PRIO_LEVELS (ERTS_NO_PROC_PRIO_LEVELS + 1)
-#define ERTS_RUNQ_FLGS_MIGRATE_QMASK \
+#define ERTS_RUNQ_FLGS_QMASK \
((((Uint32) 1) << ERTS_NO_PRIO_LEVELS) - 1)
#define ERTS_RUNQ_FLGS_EMIGRATE_SHFT \
- ERTS_NO_PROC_PRIO_LEVELS
+ ERTS_NO_PRIO_LEVELS
#define ERTS_RUNQ_FLGS_IMMIGRATE_SHFT \
(ERTS_RUNQ_FLGS_EMIGRATE_SHFT + ERTS_NO_PRIO_LEVELS)
#define ERTS_RUNQ_FLGS_EVACUATE_SHFT \
(ERTS_RUNQ_FLGS_IMMIGRATE_SHFT + ERTS_NO_PRIO_LEVELS)
#define ERTS_RUNQ_FLGS_EMIGRATE_QMASK \
- (ERTS_RUNQ_FLGS_MIGRATE_QMASK << ERTS_RUNQ_FLGS_EMIGRATE_SHFT)
+ (ERTS_RUNQ_FLGS_QMASK << ERTS_RUNQ_FLGS_EMIGRATE_SHFT)
#define ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \
- (ERTS_RUNQ_FLGS_MIGRATE_QMASK << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT)
+ (ERTS_RUNQ_FLGS_QMASK << ERTS_RUNQ_FLGS_IMMIGRATE_SHFT)
#define ERTS_RUNQ_FLGS_EVACUATE_QMASK \
- (ERTS_RUNQ_FLGS_MIGRATE_QMASK << ERTS_RUNQ_FLGS_EVACUATE_SHFT)
+ (ERTS_RUNQ_FLGS_QMASK << ERTS_RUNQ_FLGS_EVACUATE_SHFT)
#define ERTS_RUNQ_FLG_BASE2 \
(ERTS_RUNQ_FLGS_EVACUATE_SHFT + ERTS_NO_PRIO_LEVELS)
@@ -148,14 +149,18 @@ extern int erts_sched_thread_suggested_stack_size;
(((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 3))
#define ERTS_RUNQ_FLG_INACTIVE \
(((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 4))
+#define ERTS_RUNQ_FLG_NONEMPTY \
+ (((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 5))
+#define ERTS_RUNQ_FLG_PROTECTED \
+ (((Uint32) 1) << (ERTS_RUNQ_FLG_BASE2 + 6))
#define ERTS_RUNQ_FLGS_MIGRATION_QMASKS \
(ERTS_RUNQ_FLGS_EMIGRATE_QMASK \
| ERTS_RUNQ_FLGS_IMMIGRATE_QMASK \
| ERTS_RUNQ_FLGS_EVACUATE_QMASK)
+
#define ERTS_RUNQ_FLGS_MIGRATION_INFO \
- (ERTS_RUNQ_FLGS_MIGRATION_QMASKS \
- | ERTS_RUNQ_FLG_INACTIVE \
+ (ERTS_RUNQ_FLG_INACTIVE \
| ERTS_RUNQ_FLG_OUT_OF_WORK \
| ERTS_RUNQ_FLG_HALFTIME_OUT_OF_WORK)
@@ -186,33 +191,45 @@ extern int erts_sched_thread_suggested_stack_size;
#define ERTS_UNSET_RUNQ_FLG_EVACUATE(FLGS, PRIO) \
((FLGS) &= ~ERTS_RUNQ_FLG_EVACUATE((PRIO)))
-#define ERTS_RUNQ_IFLG_SUSPENDED (((erts_aint32_t) 1) << 0)
-#define ERTS_RUNQ_IFLG_NONEMPTY (((erts_aint32_t) 1) << 1)
-
-
-#ifdef DEBUG
-# if defined(ARCH_64) && !HALFWORD_HEAP
-# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \
- (*((char **) &(RQP)) = (char *) (0xdeadbeefdead0003 | ((N) << 4)))
-# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \
-do { \
- ASSERT((RQP) != NULL); \
- ASSERT(((((Uint) (RQP)) & ((Uint) 0x3))) == ((Uint) 0)); \
- ASSERT((((Uint) (RQP)) & ~((Uint) 0xffff)) != ((Uint) 0xdeadbeefdead0000));\
-} while (0)
-# else
-# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N) \
- (*((char **) &(RQP)) = (char *) (0xdead0003 | ((N) << 4)))
-# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP) \
-do { \
- ASSERT((RQP) != NULL); \
- ASSERT(((((UWord) (RQP)) & ((UWord) 1))) == ((UWord) 0)); \
- ASSERT((((UWord) (RQP)) & ~((UWord) 0xffff)) != ((UWord) 0xdead0000)); \
-} while (0)
-# endif
-#else
-# define ERTS_DBG_SET_INVALID_RUNQP(RQP, N)
-# define ERTS_DBG_VERIFY_VALID_RUNQP(RQP)
+#define ERTS_RUNQ_FLGS_INIT(RQ, INIT) \
+ erts_smp_atomic32_init_nob(&(RQ)->flags, (erts_aint32_t) (INIT))
+#define ERTS_RUNQ_FLGS_SET(RQ, FLGS) \
+ ((Uint32) erts_smp_atomic32_read_bor_relb(&(RQ)->flags, \
+ (erts_aint32_t) (FLGS)))
+#define ERTS_RUNQ_FLGS_UNSET(RQ, FLGS) \
+ ((Uint32) erts_smp_atomic32_read_band_relb(&(RQ)->flags, \
+ (erts_aint32_t) ~(FLGS)))
+#define ERTS_RUNQ_FLGS_GET(RQ) \
+ ((Uint32) erts_smp_atomic32_read_acqb(&(RQ)->flags))
+#define ERTS_RUNQ_FLGS_GET_NOB(RQ) \
+ ((Uint32) erts_smp_atomic32_read_nob(&(RQ)->flags))
+#define ERTS_RUNQ_FLGS_GET_MB(RQ) \
+ ((Uint32) erts_smp_atomic32_read_mb(&(RQ)->flags))
+#define ERTS_RUNQ_FLGS_MASK_SET(RQ, MSK, FLGS) \
+ ((Uint32) erts_smp_atomic32_mask_set_relb(&(RQ)->flags, \
+ (erts_aint32_t) (MSK), \
+ (erts_aint32_t) (FLGS)))
+
+ERTS_GLB_INLINE erts_aint32_t
+erts_smp_atomic32_mask_set_relb(erts_smp_atomic32_t *a32p,
+ erts_aint32_t mask,
+ erts_aint32_t set);
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE erts_aint32_t
+erts_smp_atomic32_mask_set_relb(erts_smp_atomic32_t *a32p,
+ erts_aint32_t mask,
+ erts_aint32_t set)
+{
+ erts_aint32_t act = erts_smp_atomic32_read_nob(a32p);
+ while (1) {
+ erts_aint32_t exp = act;
+ erts_aint32_t new = exp & ~mask;
+ new |= (mask & set);
+ act = erts_smp_atomic32_cmpxchg_relb(a32p, new, exp);
+ if (act == exp)
+ return act;
+ }
+}
#endif
typedef enum {
@@ -264,7 +281,9 @@ typedef enum {
#define ERTS_SSI_AUX_WORK_CHECK_CHILDREN (((erts_aint32_t) 1) << 8)
#define ERTS_SSI_AUX_WORK_SET_TMO (((erts_aint32_t) 1) << 9)
#define ERTS_SSI_AUX_WORK_MSEG_CACHE_CHECK (((erts_aint32_t) 1) << 10)
-#define ERTS_SSI_AUX_WORK_REAP_PORTS (((erts_aint32_t) 1) << 11)
+#define ERTS_SSI_AUX_WORK_CODE_IX_ACTIVATION (((erts_aint32_t) 1) << 11)
+#define ERTS_SSI_AUX_WORK_REAP_PORTS (((erts_aint32_t) 1) << 12)
+#define ERTS_SSI_AUX_WORK_FINISH_BP (((erts_aint32_t) 1) << 13)
typedef struct ErtsSchedulerSleepInfo_ ErtsSchedulerSleepInfo;
@@ -290,7 +309,7 @@ struct ErtsSchedulerSleepInfo_ {
typedef struct ErtsProcList_ ErtsProcList;
struct ErtsProcList_ {
Eterm pid;
- SysTimeval started;
+ Uint64 started_interval;
ErtsProcList* next;
};
@@ -311,21 +330,39 @@ typedef struct ErtsSchedulerData_ ErtsSchedulerData;
typedef struct ErtsRunQueue_ ErtsRunQueue;
typedef struct {
- int len;
- int max_len;
+ erts_smp_atomic32_t len;
+ erts_aint32_t max_len;
int reds;
+} ErtsRunQueueInfo;
+
+#ifdef ERTS_SMP
+
+typedef struct {
+ Uint32 flags;
+ ErtsRunQueue *misc_evac_runq;
struct {
struct {
int this;
int other;
} limit;
ErtsRunQueue *runq;
- } migrate;
-} ErtsRunQueueInfo;
+ Uint32 flags;
+ } prio[ERTS_NO_PRIO_LEVELS];
+} ErtsMigrationPath;
+
+typedef struct ErtsMigrationPaths_ ErtsMigrationPaths;
+
+struct ErtsMigrationPaths_ {
+ void *block;
+ ErtsMigrationPaths *next;
+ ErtsThrPrgrVal thr_prgr;
+ ErtsMigrationPath mpath[1];
+};
+
+#endif /* ERTS_SMP */
struct ErtsRunQueue_ {
int ix;
- erts_smp_atomic32_t info_flags;
erts_smp_mtx_t mtx;
erts_smp_cnd_t cnd;
@@ -333,19 +370,18 @@ struct ErtsRunQueue_ {
ErtsSchedulerData *scheduler;
int waiting; /* < 0 in sys schedule; > 0 on cnd variable */
int woken;
- Uint32 flags;
+ erts_smp_atomic32_t flags;
int check_balance_reds;
int full_reds_history_sum;
int full_reds_history[ERTS_FULL_REDS_HISTORY_SIZE];
int out_of_work_count;
- int max_len;
- int len;
+ erts_aint32_t max_len;
+ erts_aint32_t len;
int wakeup_other;
int wakeup_other_reds;
int halt_in_progress;
struct {
- int len;
ErtsProcList *pending_exiters;
Uint context_switches;
Uint reductions;
@@ -360,7 +396,7 @@ struct ErtsRunQueue_ {
struct {
ErtsMiscOpList *start;
ErtsMiscOpList *end;
- ErtsRunQueue *evac_runq;
+ erts_smp_atomic_t evac_runq;
} misc;
struct {
@@ -380,7 +416,7 @@ extern ErtsAlignedRunQueue *erts_aligned_run_queues;
#define ERTS_PROC_REDUCTIONS_EXECUTED(RQ, PRIO, REDS, AREDS) \
do { \
(RQ)->procs.reductions += (AREDS); \
- (RQ)->procs.prio_info[p->prio].reds += (REDS); \
+ (RQ)->procs.prio_info[(PRIO)].reds += (REDS); \
(RQ)->check_balance_reds -= (REDS); \
(RQ)->wakeup_other_reds += (AREDS); \
} while (0)
@@ -431,6 +467,18 @@ typedef struct {
void *queue;
} async_ready;
#endif
+#ifdef ERTS_SMP
+ struct {
+ Process* code_stager;
+ ErtsThrPrgrVal thr_prgr;
+ } code_ix_activation;
+#endif
+#ifdef ERTS_SMP
+ struct {
+ Process* stager;
+ ErtsThrPrgrVal thr_prgr;
+ } bp_ix_activation;
+#endif
} ErtsAuxWorkData;
struct ErtsSchedulerData_ {
@@ -488,6 +536,90 @@ extern ErtsAlignedSchedulerData *erts_aligned_scheduler_data;
extern ErtsSchedulerData *erts_scheduler_data;
#endif
+#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
+int erts_smp_lc_runq_is_locked(ErtsRunQueue *);
+#endif
+
+#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
+
+/*
+ * Run queue locked during modifications. We use atomic ops since
+ * other threads peek at values without run queue lock.
+ */
+
+ERTS_GLB_INLINE void erts_smp_inc_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio);
+ERTS_GLB_INLINE void erts_smp_dec_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio);
+ERTS_GLB_INLINE void erts_smp_reset_max_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE void
+erts_smp_inc_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio)
+{
+ erts_aint32_t len;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+
+ len = erts_smp_atomic32_read_nob(&rqi->len);
+ ASSERT(len >= 0);
+ if (len == 0) {
+ ASSERT((erts_smp_atomic32_read_nob(&rq->flags)
+ & ((erts_aint32_t) (1 << prio))) == 0);
+ erts_smp_atomic32_read_bor_nob(&rq->flags,
+ (erts_aint32_t) (1 << prio));
+ }
+ len++;
+ if (rqi->max_len < len)
+ rqi->max_len = len;
+
+ erts_smp_atomic32_set_relb(&rqi->len, len);
+
+ rq->len++;
+ if (rq->max_len < rq->len)
+ rq->max_len = len;
+ ASSERT(rq->len > 0);
+}
+
+ERTS_GLB_INLINE void
+erts_smp_dec_runq_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi, int prio)
+{
+ erts_aint32_t len;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+
+ len = erts_smp_atomic32_read_nob(&rqi->len);
+ len--;
+ ASSERT(len >= 0);
+ if (len == 0) {
+ ASSERT((erts_smp_atomic32_read_nob(&rq->flags)
+ & ((erts_aint32_t) (1 << prio))));
+ erts_smp_atomic32_read_band_nob(&rq->flags,
+ ~((erts_aint32_t) (1 << prio)));
+ }
+ erts_smp_atomic32_set_relb(&rqi->len, len);
+
+ rq->len--;
+ ASSERT(rq->len >= 0);
+}
+
+ERTS_GLB_INLINE void
+erts_smp_reset_max_len(ErtsRunQueue *rq, ErtsRunQueueInfo *rqi)
+{
+ erts_aint32_t len;
+
+ ERTS_SMP_LC_ASSERT(erts_smp_lc_runq_is_locked(rq));
+
+ len = erts_smp_atomic32_read_nob(&rqi->len);
+ ASSERT(rqi->max_len >= len);
+ rqi->max_len = len;
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+#define RUNQ_READ_LEN(X) erts_smp_atomic32_read_nob((X))
+
+#endif /* ERTS_INCLUDE_SCHEDULER_INTERNALS */
+
/*
* Process Specific Data.
*
@@ -600,6 +732,8 @@ struct ErtsPendingSuspend_ {
# define BIN_OLD_VHEAP(p) (p)->bin_old_vheap
struct process {
+ Eterm id; /* The pid of this process
+ (need to be first in struct) */
/* All fields in the PCB that differs between different heap
* architectures, have been moved to the end of this struct to
* make sure that as few offsets as possible differ. Different
@@ -642,13 +776,9 @@ struct process {
* Number of reductions left to execute.
* Only valid for the current process.
*/
- Uint32 status; /* process STATE */
- Uint32 gcstatus; /* process gc STATE */
- Uint32 rstatus; /* process resume STATE */
Uint32 rcount; /* suspend count */
- Eterm id; /* The pid of this process */
int prio; /* Priority of process */
- int skipped; /* Times a low prio process has been rescheduled */
+ int schedule_count; /* Times left to reschedule a low prio process */
Uint reds; /* No of reductions for this process */
Eterm tracer_proc; /* If proc is traced, this is the tracer
(can NOT be boxed) */
@@ -661,7 +791,6 @@ struct process {
Eterm ftrace; /* Latest exception stack trace dump */
Process *next; /* Pointer to next process in run queue */
- Process *prev; /* Pointer to prev process in run queue */
struct reg_proc *reg; /* NULL iff not registered */
ErtsLink *nlinks;
@@ -699,8 +828,8 @@ struct process {
* Information mainly for post-mortem use (erl crash dump).
*/
Eterm parent; /* Pid of process that created this process. */
- SysTimeval started; /* Time when started. */
-
+ erts_approx_time_t approx_started; /* Time when started. */
+ Uint64 started_interval;
/* This is the place, where all fields that differs between memory
* architectures, have gone to.
@@ -731,19 +860,16 @@ struct process {
void *exit_data; /* Misc data referred during termination */
} u;
- ErtsRunQueue *bound_runq;
+ erts_smp_atomic32_t state; /* Process state flags (see ERTS_PSFLG_*) */
#ifdef ERTS_SMP
erts_proc_lock_t lock;
ErtsSchedulerData *scheduler_data;
- int is_exiting;
- Uint32 runq_flags;
- Uint32 status_flags;
ErlMessageInQueue msg_inq;
Eterm suspendee;
ErtsPendingSuspend *pending_suspenders;
ErtsPendExit pending_exit;
- ErtsRunQueue *run_queue;
+ erts_smp_atomic_t run_queue;
#ifdef HIPE
struct hipe_process_state_smp hipe_smp;
#endif
@@ -797,6 +923,29 @@ void erts_check_for_holes(Process* p);
#define SEQ_TRACE_TOKEN(p) ((p)->seq_trace_token)
+#if ERTS_NO_PROC_PRIO_LEVELS > 4
+# error "Need to increase ERTS_PSFLG_PRIO_SHIFT"
+#endif
+
+#define ERTS_PSFLG_PRIO_SHIFT 2
+
+#define ERTS_PSFLG_BIT(N) \
+ (((erts_aint32_t) 1) << (ERTS_PSFLG_PRIO_SHIFT + (N)))
+
+#define ERTS_PSFLG_PRIO_MASK (ERTS_PSFLG_BIT(0) - 1)
+
+#define ERTS_PSFLG_FREE ERTS_PSFLG_BIT(0)
+#define ERTS_PSFLG_EXITING ERTS_PSFLG_BIT(1)
+#define ERTS_PSFLG_PENDING_EXIT ERTS_PSFLG_BIT(2)
+#define ERTS_PSFLG_ACTIVE ERTS_PSFLG_BIT(3)
+#define ERTS_PSFLG_IN_RUNQ ERTS_PSFLG_BIT(4)
+#define ERTS_PSFLG_RUNNING ERTS_PSFLG_BIT(5)
+#define ERTS_PSFLG_SUSPENDED ERTS_PSFLG_BIT(6)
+#define ERTS_PSFLG_GC ERTS_PSFLG_BIT(7)
+#define ERTS_PSFLG_BOUND ERTS_PSFLG_BIT(8)
+#define ERTS_PSFLG_TRAP_EXIT ERTS_PSFLG_BIT(9)
+
+
/* The sequential tracing token is a tuple of size 5:
*
* {Flags, Label, Serial, Sender}
@@ -869,9 +1018,8 @@ Eterm* erts_heap_alloc(Process* p, Uint need, Uint xtra);
Eterm* erts_set_hole_marker(Eterm* ptr, Uint sz);
#endif
-extern Process** process_tab;
-extern Uint erts_max_processes;
-extern Uint erts_process_tab_index_mask;
+extern erts_smp_rwmtx_t erts_proc_tab_rwmtx;
+extern erts_smp_atomic_t *erts_proc_tab;
extern Uint erts_default_process_flags;
extern erts_smp_rwmtx_t erts_cpu_bind_rwmtx;
/* If any of the erts_system_monitor_* variables are set (enabled),
@@ -899,17 +1047,13 @@ struct erts_system_profile_flags_t {
unsigned int exclusive : 1;
};
extern struct erts_system_profile_flags_t erts_system_profile_flags;
-
-#define INVALID_PID(p, pid) ((p) == NULL \
- || (p)->id != (pid) \
- || (p)->status == P_EXITING)
#define IS_TRACED(p) ( (p)->tracer_proc != NIL )
#define ARE_TRACE_FLAGS_ON(p,tf) ( ((p)->trace_flags & (tf|F_SENSITIVE)) == (tf) )
#define IS_TRACED_FL(p,tf) ( IS_TRACED(p) && ARE_TRACE_FLAGS_ON(p,tf) )
/* process flags */
-#define F_TRAPEXIT (1 << 0)
+#define F_HIBERNATE_SCHED (1 << 0) /* Schedule out after hibernate op */
#define F_INSLPQUEUE (1 << 1) /* Set if in timer queue */
#define F_TIMO (1 << 2) /* Set if timeout */
#define F_HEAP_GROW (1 << 3)
@@ -920,7 +1064,6 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags;
#define F_HAVE_BLCKD_MSCHED (1 << 8) /* Process has blocked multi-scheduling */
#define F_P2PNR_RESCHED (1 << 9) /* Process has been rescheduled via erts_pid2proc_not_running() */
#define F_FORCE_GC (1 << 10) /* Force gc at process in-scheduling */
-#define F_HIBERNATE_SCHED (1 << 11) /* Schedule out after hibernate op */
/* process trace_flags */
#define F_SENSITIVE (1 << 0)
@@ -987,67 +1130,10 @@ extern struct erts_system_profile_flags_t erts_system_profile_flags;
#define DT_UTAG_FLAGS(P) ((P)->dt_utag_flags)
#endif
-
-#ifdef ERTS_SMP
-/* Status flags ... */
-#define ERTS_PROC_SFLG_PENDADD2SCHEDQ (((Uint32) 1) << 0) /* Pending
- add to
- schedule q */
-#define ERTS_PROC_SFLG_INRUNQ (((Uint32) 1) << 1) /* Process is
- in run q */
-#define ERTS_PROC_SFLG_TRAPEXIT (((Uint32) 1) << 2) /* Process is
- trapping
- exit */
-#define ERTS_PROC_SFLG_RUNNING (((Uint32) 1) << 3) /* Process is
- running */
-/* Scheduler flags in process struct... */
-#define ERTS_PROC_RUNQ_FLG_RUNNING (((Uint32) 1) << 0) /* Process is
- running */
-
-#endif
-
-
-#ifdef ERTS_SMP
-#define ERTS_PROC_IS_TRAPPING_EXITS(P) \
- (ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks((P)) \
- & ERTS_PROC_LOCK_STATUS), \
- (P)->status_flags & ERTS_PROC_SFLG_TRAPEXIT)
-
-#define ERTS_PROC_SET_TRAP_EXIT(P) \
- (ERTS_SMP_LC_ASSERT(((ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS) \
- & erts_proc_lc_my_proc_locks((P))) \
- == (ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS)), \
- (P)->status_flags |= ERTS_PROC_SFLG_TRAPEXIT, \
- (P)->flags |= F_TRAPEXIT, \
- 1)
-
-#define ERTS_PROC_UNSET_TRAP_EXIT(P) \
- (ERTS_SMP_LC_ASSERT(((ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS) \
- & erts_proc_lc_my_proc_locks((P))) \
- == (ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS)), \
- (P)->status_flags &= ~ERTS_PROC_SFLG_TRAPEXIT, \
- (P)->flags &= ~F_TRAPEXIT, \
- 0)
-#else
-#define ERTS_PROC_IS_TRAPPING_EXITS(P) ((P)->flags & F_TRAPEXIT)
-#define ERTS_PROC_SET_TRAP_EXIT(P) ((P)->flags |= F_TRAPEXIT, 1)
-#define ERTS_PROC_UNSET_TRAP_EXIT(P) ((P)->flags &= ~F_TRAPEXIT, 0)
-#endif
-
/* Option flags to erts_send_exit_signal() */
#define ERTS_XSIG_FLG_IGN_KILL (((Uint32) 1) << 0)
#define ERTS_XSIG_FLG_NO_IGN_NORMAL (((Uint32) 1) << 1)
-
-/* Process status values */
-#define P_FREE 0
-#define P_RUNABLE 1
-#define P_WAITING 2
-#define P_RUNNING 3
-#define P_EXITING 4
-#define P_GARBING 5
-#define P_SUSPENDED 6
-
#define CANCEL_TIMER(p) \
do { \
if ((p)->flags & (F_INSLPQUEUE)) \
@@ -1069,6 +1155,9 @@ void erts_early_init_scheduling(int);
void erts_init_scheduling(int, int);
Eterm erts_sched_wall_time_request(Process *c_p, int set, int enable);
+Uint64 erts_get_proc_interval(void);
+Uint64 erts_ensure_later_proc_interval(Uint64);
+Uint64 erts_step_proc_interval(void);
ErtsProcList *erts_proclist_create(Process *);
void erts_proclist_destroy(ErtsProcList *);
@@ -1104,6 +1193,10 @@ void erts_smp_notify_check_children_needed(void);
#if ERTS_USE_ASYNC_READY_Q
void erts_notify_check_async_ready_queue(void *);
#endif
+#ifdef ERTS_SMP
+void erts_notify_code_ix_activation(Process* p, ErtsThrPrgrVal later);
+void erts_notify_finish_breakpointing(Process* p);
+#endif
void erts_schedule_misc_aux_work(int sched_id,
void (*func)(void *),
void *arg);
@@ -1124,14 +1217,6 @@ Eterm erts_get_schedulers_binds(Process *c_p);
Eterm erts_set_cpu_topology(Process *c_p, Eterm term);
Eterm erts_bind_schedulers(Process *c_p, Eterm how);
ErtsRunQueue *erts_schedid2runq(Uint);
-#ifdef ERTS_SMP
-ErtsMigrateResult erts_proc_migrate(Process *,
- ErtsProcLocks *,
- ErtsRunQueue *,
- int *,
- ErtsRunQueue *,
- int *);
-#endif
Process *schedule(Process*, int);
void erts_schedule_misc_op(void (*)(void *), void *);
Eterm erl_create_process(Process*, Eterm, Eterm, Eterm, ErlSpawnOpts*);
@@ -1180,8 +1265,7 @@ int erts_send_exit_signal(Process *,
#ifdef ERTS_SMP
void erts_handle_pending_exit(Process *, ErtsProcLocks);
#define ERTS_PROC_PENDING_EXIT(P) \
- (ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks((P)) & ERTS_PROC_LOCK_STATUS),\
- (P)->pending_exit.reason != THE_NON_VALUE)
+ (ERTS_PSFLG_PENDING_EXIT & erts_smp_atomic32_read_acqb(&(P)->state))
#else
#define ERTS_PROC_PENDING_EXIT(P) 0
#endif
@@ -1233,13 +1317,26 @@ ErtsSchedulerData *erts_get_scheduler_data(void)
#endif
#endif
+void erts_schedule_process(Process *, erts_aint32_t);
+
+ERTS_GLB_INLINE void erts_proc_notify_new_message(Process *p);
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+ERTS_GLB_INLINE void
+erts_proc_notify_new_message(Process *p)
+{
+ /* No barrier needed, due to msg lock */
+ erts_aint32_t state = erts_smp_atomic32_read_nob(&p->state);
+ if (!(state & ERTS_PSFLG_ACTIVE))
+ erts_schedule_process(p, state);
+}
+#endif
+
#if defined(ERTS_SMP) && defined(ERTS_ENABLE_LOCK_CHECK)
#define ERTS_PROCESS_LOCK_ONLY_LOCK_CHECK_PROTO__
#include "erl_process_lock.h"
#undef ERTS_PROCESS_LOCK_ONLY_LOCK_CHECK_PROTO__
-int erts_smp_lc_runq_is_locked(ErtsRunQueue *);
#define ERTS_SMP_LC_CHK_RUNQ_LOCK(RQ, L) \
do { \
if ((L)) \
@@ -1365,13 +1462,91 @@ erts_proc_set_error_handler(Process *p, ErtsProcLocks plocks, Eterm handler)
#endif
+#ifdef ERTS_INCLUDE_SCHEDULER_INTERNALS
+
#ifdef ERTS_SMP
-ErtsRunQueue *erts_prepare_emigrate(ErtsRunQueue *c_rq,
- ErtsRunQueueInfo *c_rqi,
- int prio);
+#include "erl_thr_progress.h"
+
+extern erts_atomic_t erts_migration_paths;
+
+ERTS_GLB_INLINE ErtsMigrationPaths *erts_get_migration_paths_managed(void);
+ERTS_GLB_INLINE ErtsMigrationPaths *erts_get_migration_paths(void);
ERTS_GLB_INLINE ErtsRunQueue *erts_check_emigration_need(ErtsRunQueue *c_rq,
int prio);
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE ErtsMigrationPaths *
+erts_get_migration_paths_managed(void)
+{
+ return (ErtsMigrationPaths *) erts_atomic_read_ddrb(&erts_migration_paths);
+}
+
+ERTS_GLB_INLINE ErtsMigrationPaths *
+erts_get_migration_paths(void)
+{
+ if (erts_thr_progress_is_managed_thread())
+ return erts_get_migration_paths_managed();
+ else
+ return NULL;
+}
+
+ERTS_GLB_INLINE ErtsRunQueue *
+erts_check_emigration_need(ErtsRunQueue *c_rq, int prio)
+{
+ ErtsMigrationPaths *mps = erts_get_migration_paths();
+ ErtsMigrationPath *mp;
+ Uint32 flags;
+
+ if (!mps)
+ return NULL;
+
+ mp = &mps->mpath[c_rq->ix];
+ flags = mp->flags;
+
+ if (ERTS_CHK_RUNQ_FLG_EMIGRATE(flags, prio)) {
+ int len;
+
+ if (ERTS_CHK_RUNQ_FLG_EVACUATE(flags, prio)) {
+ /* force emigration */
+ return mp->prio[prio].runq;
+ }
+
+ if (flags & ERTS_RUNQ_FLG_INACTIVE) {
+ /*
+ * Run queue was inactive at last balance. Verify that
+ * it still is before forcing emigration.
+ */
+ if (ERTS_RUNQ_FLGS_GET(c_rq) & ERTS_RUNQ_FLG_INACTIVE)
+ return mp->prio[prio].runq;
+ }
+
+
+ if (prio == ERTS_PORT_PRIO_LEVEL)
+ len = RUNQ_READ_LEN(&c_rq->ports.info.len);
+ else
+ len = RUNQ_READ_LEN(&c_rq->procs.prio_info[prio].len);
+
+ if (len > mp->prio[prio].limit.this) {
+ ErtsRunQueue *n_rq = mp->prio[prio].runq;
+ if (n_rq) {
+ if (prio == ERTS_PORT_PRIO_LEVEL)
+ len = RUNQ_READ_LEN(&n_rq->ports.info.len);
+ else
+ len = RUNQ_READ_LEN(&n_rq->procs.prio_info[prio].len);
+
+ if (len < mp->prio[prio].limit.other)
+ return n_rq;
+ }
+ }
+ }
+ return NULL;
+}
+
+#endif
+
+#endif
+
#endif
ERTS_GLB_INLINE int erts_is_scheduler_bound(ErtsSchedulerData *esdp);
@@ -1394,29 +1569,6 @@ ERTS_GLB_INLINE void erts_smp_runqs_unlock(ErtsRunQueue *rq1, ErtsRunQueue *rq2)
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-#ifdef ERTS_SMP
-ERTS_GLB_INLINE ErtsRunQueue *
-erts_check_emigration_need(ErtsRunQueue *c_rq, int prio)
-{
- ErtsRunQueueInfo *c_rqi;
-
- if (!ERTS_CHK_RUNQ_FLG_EMIGRATE(c_rq->flags, prio))
- return NULL;
-
- if (prio == ERTS_PORT_PRIO_LEVEL)
- c_rqi = &c_rq->ports.info;
- else
- c_rqi = &c_rq->procs.prio_info[prio];
-
- if (!ERTS_CHK_RUNQ_FLG_EVACUATE(c_rq->flags, prio)
- && !(c_rq->flags & ERTS_RUNQ_FLG_INACTIVE)
- && c_rqi->len <= c_rqi->migrate.limit.this)
- return NULL;
-
- return erts_prepare_emigrate(c_rq, c_rqi, prio);
-}
-#endif
-
ERTS_GLB_INLINE
int erts_is_scheduler_bound(ErtsSchedulerData *esdp)
{
@@ -1454,10 +1606,9 @@ Uint erts_get_scheduler_id(void)
ERTS_GLB_INLINE ErtsRunQueue *
erts_get_runq_proc(Process *p)
{
- ERTS_SMP_LC_ASSERT(ERTS_PROC_LOCK_STATUS & erts_proc_lc_my_proc_locks(p));
#ifdef ERTS_SMP
- ASSERT(p->run_queue);
- return p->run_queue;
+ ASSERT(ERTS_AINT_NULL != erts_atomic_read_nob(&p->run_queue));
+ return (ErtsRunQueue *) erts_atomic_read_nob(&p->run_queue);
#else
return ERTS_RUNQ_IX(0);
#endif
@@ -1628,25 +1779,13 @@ extern int erts_disable_proc_not_running_opt;
#ifdef DEBUG
#define ERTS_SMP_ASSERT_IS_NOT_EXITING(P) \
- do { ASSERT(!(P)->is_exiting); } while (0)
+ do { ASSERT(!ERTS_PROC_IS_EXITING((P))); } while (0)
#else
#define ERTS_SMP_ASSERT_IS_NOT_EXITING(P)
#endif
-/* NOTE: At least one process lock has to be held on P! */
-#ifdef ERTS_ENABLE_LOCK_CHECK
-#define ERTS_PROC_IS_EXITING(P) \
- (ERTS_SMP_LC_ASSERT(erts_proc_lc_my_proc_locks((P)) != 0 \
- || erts_lc_pix_lock_is_locked(ERTS_PID2PIXLOCK((P)->id))),\
- (P)->is_exiting)
-#else
-#define ERTS_PROC_IS_EXITING(P) ((P)->is_exiting)
-#endif
-
#else /* !ERTS_SMP */
-#define ERTS_PROC_IS_EXITING(P) ((P)->status == P_EXITING)
-
#define ERTS_SMP_ASSERT_IS_NOT_EXITING(P)
#define erts_pid2proc_not_running erts_pid2proc
@@ -1654,6 +1793,10 @@ extern int erts_disable_proc_not_running_opt;
#endif
+#define ERTS_PROC_IS_EXITING(P) \
+ (ERTS_PSFLG_EXITING & erts_smp_atomic32_read_acqb(&(P)->state))
+
+
/* Minimum NUMBER of processes for a small system to start */
#ifdef ERTS_SMP
#define ERTS_MIN_PROCESSES ERTS_NO_OF_PIX_LOCKS
diff --git a/erts/emulator/beam/erl_process_dump.c b/erts/emulator/beam/erl_process_dump.c
index 3550f1396c..964dc1ae3e 100644
--- a/erts/emulator/beam/erl_process_dump.c
+++ b/erts/emulator/beam/erl_process_dump.c
@@ -65,14 +65,11 @@ erts_deep_process_dump(int to, void *to_arg)
all_binaries = NULL;
for (i = 0; i < erts_max_processes; i++) {
- if ((process_tab[i] != NULL) && (process_tab[i]->i != ENULL)) {
- if (process_tab[i]->status != P_EXITING) {
- Process* p = process_tab[i];
-
- if (p->status != P_GARBING) {
- dump_process_info(to, to_arg, p);
- }
- }
+ Process *p = erts_pix2proc(i);
+ if (p && p->i != ENULL) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ if (!(state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_GC)))
+ dump_process_info(to, to_arg, p);
}
}
diff --git a/erts/emulator/beam/erl_process_lock.c b/erts/emulator/beam/erl_process_lock.c
index b3b4601a31..83272aab42 100644
--- a/erts/emulator/beam/erl_process_lock.c
+++ b/erts/emulator/beam/erl_process_lock.c
@@ -67,10 +67,12 @@
#include "erl_process.h"
-const Process erts_proc_lock_busy;
+const Process erts_proc_lock_busy = {ERTS_INVALID_PID};
#ifdef ERTS_SMP
+#if ERTS_PROC_LOCK_OWN_IMPL
+
#define ERTS_PROC_LOCK_SPIN_COUNT_MAX 2000
#define ERTS_PROC_LOCK_SPIN_COUNT_SCHED_INC 32
#define ERTS_PROC_LOCK_SPIN_COUNT_BASE 1000
@@ -100,6 +102,13 @@ static erts_proc_lock_queues_t zeroqs = {0};
static erts_smp_spinlock_t qs_lock;
static erts_proc_lock_queues_t *queue_free_list;
+static int proc_lock_spin_count;
+static int aux_thr_proc_lock_spin_count;
+
+static void cleanup_tse(void);
+
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+
#ifdef ERTS_ENABLE_LOCK_CHECK
static struct {
Sint16 proc_lock_main;
@@ -111,16 +120,11 @@ static struct {
erts_pix_lock_t erts_pix_locks[ERTS_NO_OF_PIX_LOCKS];
-static int proc_lock_spin_count;
-static int aux_thr_proc_lock_spin_count;
-
-static void cleanup_tse(void);
void
erts_init_proc_lock(int cpus)
{
int i;
- erts_smp_spinlock_init(&qs_lock, "proc_lck_qs_alloc");
for (i = 0; i < ERTS_NO_OF_PIX_LOCKS; i++) {
#ifdef ERTS_ENABLE_LOCK_COUNT
erts_mtx_init_x(&erts_pix_locks[i].u.mtx,
@@ -129,14 +133,10 @@ erts_init_proc_lock(int cpus)
erts_mtx_init(&erts_pix_locks[i].u.mtx, "pix_lock");
#endif
}
+#if ERTS_PROC_LOCK_OWN_IMPL
+ erts_smp_spinlock_init(&qs_lock, "proc_lck_qs_alloc");
queue_free_list = NULL;
erts_thr_install_exit_handler(cleanup_tse);
-#ifdef ERTS_ENABLE_LOCK_CHECK
- lc_id.proc_lock_main = erts_lc_get_lock_order_id("proc_main");
- lc_id.proc_lock_link = erts_lc_get_lock_order_id("proc_link");
- lc_id.proc_lock_msgq = erts_lc_get_lock_order_id("proc_msgq");
- lc_id.proc_lock_status = erts_lc_get_lock_order_id("proc_status");
-#endif
if (cpus > 1) {
proc_lock_spin_count = ERTS_PROC_LOCK_SPIN_COUNT_BASE;
proc_lock_spin_count += (ERTS_PROC_LOCK_SPIN_COUNT_SCHED_INC
@@ -153,8 +153,17 @@ erts_init_proc_lock(int cpus)
}
if (proc_lock_spin_count > ERTS_PROC_LOCK_SPIN_COUNT_MAX)
proc_lock_spin_count = ERTS_PROC_LOCK_SPIN_COUNT_MAX;
+#endif
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ lc_id.proc_lock_main = erts_lc_get_lock_order_id("proc_main");
+ lc_id.proc_lock_link = erts_lc_get_lock_order_id("proc_link");
+ lc_id.proc_lock_msgq = erts_lc_get_lock_order_id("proc_msgq");
+ lc_id.proc_lock_status = erts_lc_get_lock_order_id("proc_status");
+#endif
}
+#if ERTS_PROC_LOCK_OWN_IMPL
+
#ifdef ERTS_ENABLE_LOCK_CHECK
static void
check_unused_tse(erts_tse_t *wtr)
@@ -220,13 +229,6 @@ tse_return(erts_tse_t *tse, int force_free_q)
erts_tse_return(tse);
}
-void
-erts_proc_lock_prepare_proc_lock_waiter(void)
-{
- tse_return(tse_fetch(NULL), 0);
-}
-
-
static void
cleanup_tse(void)
{
@@ -651,6 +653,16 @@ erts_proc_unlock_failed(Process *p,
transfer_locks(p, wait_locks, pix_lock, 1); /* unlocks pix_lock */
}
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+
+void
+erts_proc_lock_prepare_proc_lock_waiter(void)
+{
+#if ERTS_PROC_LOCK_OWN_IMPL
+ tse_return(tse_fetch(NULL), 0);
+#endif
+}
+
/*
* proc_safelock() locks process locks on two processes. In order
* to avoid a deadlock, proc_safelock() unlocks those locks that
@@ -659,12 +671,11 @@ erts_proc_unlock_failed(Process *p,
*/
static void
-proc_safelock(Process *a_proc,
- erts_pix_lock_t *a_pix_lck,
+proc_safelock(int is_sched,
+ Process *a_proc,
ErtsProcLocks a_have_locks,
ErtsProcLocks a_need_locks,
Process *b_proc,
- erts_pix_lock_t *b_pix_lck,
ErtsProcLocks b_have_locks,
ErtsProcLocks b_need_locks)
{
@@ -672,7 +683,6 @@ proc_safelock(Process *a_proc,
#ifdef ERTS_ENABLE_LOCK_CHECK
Eterm pid1, pid2;
#endif
- erts_pix_lock_t *pix_lck1, *pix_lck2;
ErtsProcLocks need_locks1, have_locks1, need_locks2, have_locks2;
ErtsProcLocks unlock_mask;
int lock_no, refc1 = 0, refc2 = 0;
@@ -689,14 +699,12 @@ proc_safelock(Process *a_proc,
#ifdef ERTS_ENABLE_LOCK_CHECK
pid1 = a_proc->id;
#endif
- pix_lck1 = a_pix_lck;
need_locks1 = a_need_locks;
have_locks1 = a_have_locks;
p2 = b_proc;
#ifdef ERTS_ENABLE_LOCK_CHECK
pid2 = b_proc->id;
#endif
- pix_lck2 = b_pix_lck;
need_locks2 = b_need_locks;
have_locks2 = b_have_locks;
}
@@ -705,14 +713,12 @@ proc_safelock(Process *a_proc,
#ifdef ERTS_ENABLE_LOCK_CHECK
pid1 = b_proc->id;
#endif
- pix_lck1 = b_pix_lck;
need_locks1 = b_need_locks;
have_locks1 = b_have_locks;
p2 = a_proc;
#ifdef ERTS_ENABLE_LOCK_CHECK
pid2 = a_proc->id;
#endif
- pix_lck2 = a_pix_lck;
need_locks2 = a_need_locks;
have_locks2 = a_have_locks;
}
@@ -723,14 +729,12 @@ proc_safelock(Process *a_proc,
#ifdef ERTS_ENABLE_LOCK_CHECK
pid1 = a_proc->id;
#endif
- pix_lck1 = a_pix_lck;
need_locks1 = a_need_locks | b_need_locks;
have_locks1 = a_have_locks | b_have_locks;
p2 = NULL;
#ifdef ERTS_ENABLE_LOCK_CHECK
pid2 = 0;
#endif
- pix_lck2 = NULL;
need_locks2 = 0;
have_locks2 = 0;
}
@@ -740,14 +744,12 @@ proc_safelock(Process *a_proc,
#ifdef ERTS_ENABLE_LOCK_CHECK
pid1 = b_proc->id;
#endif
- pix_lck1 = b_pix_lck;
need_locks1 = b_need_locks;
have_locks1 = b_have_locks;
p2 = NULL;
#ifdef ERTS_ENABLE_LOCK_CHECK
pid2 = 0;
#endif
- pix_lck2 = NULL;
need_locks2 = 0;
have_locks2 = 0;
#ifdef ERTS_ENABLE_LOCK_CHECK
@@ -795,21 +797,21 @@ proc_safelock(Process *a_proc,
if (unlock_locks) {
have_locks1 &= ~unlock_locks;
need_locks1 |= unlock_locks;
- if (!have_locks1) {
+ if (!is_sched && !have_locks1) {
refc1 = 1;
erts_smp_proc_inc_refc(p1);
}
- erts_smp_proc_unlock__(p1, pix_lck1, unlock_locks);
+ erts_smp_proc_unlock(p1, unlock_locks);
}
unlock_locks = unlock_mask & have_locks2;
if (unlock_locks) {
have_locks2 &= ~unlock_locks;
need_locks2 |= unlock_locks;
- if (!have_locks2) {
+ if (!is_sched && !have_locks2) {
refc2 = 1;
erts_smp_proc_inc_refc(p2);
}
- erts_smp_proc_unlock__(p2, pix_lck2, unlock_locks);
+ erts_smp_proc_unlock(p2, unlock_locks);
}
}
@@ -840,7 +842,7 @@ proc_safelock(Process *a_proc,
if (need_locks2 & lock)
lock_no--;
locks = need_locks1 & lock_mask;
- erts_smp_proc_lock__(p1, pix_lck1, locks);
+ erts_smp_proc_lock(p1, locks);
have_locks1 |= locks;
need_locks1 &= ~locks;
}
@@ -851,7 +853,7 @@ proc_safelock(Process *a_proc,
lock = (1 << ++lock_no);
}
locks = need_locks2 & lock_mask;
- erts_smp_proc_lock__(p2, pix_lck2, locks);
+ erts_smp_proc_lock(p2, locks);
have_locks2 |= locks;
need_locks2 &= ~locks;
}
@@ -886,10 +888,12 @@ proc_safelock(Process *a_proc,
}
#endif
- if (refc1)
- erts_smp_proc_dec_refc(p1);
- if (refc2)
- erts_smp_proc_dec_refc(p2);
+ if (!is_sched) {
+ if (refc1)
+ erts_smp_proc_dec_refc(p1);
+ if (refc2)
+ erts_smp_proc_dec_refc(p2);
+ }
}
void
@@ -900,77 +904,191 @@ erts_proc_safelock(Process *a_proc,
ErtsProcLocks b_have_locks,
ErtsProcLocks b_need_locks)
{
- proc_safelock(a_proc,
- a_proc ? ERTS_PID2PIXLOCK(a_proc->id) : NULL,
+ proc_safelock(erts_get_scheduler_id() != 0,
+ a_proc,
a_have_locks,
a_need_locks,
b_proc,
- b_proc ? ERTS_PID2PIXLOCK(b_proc->id) : NULL,
b_have_locks,
b_need_locks);
}
-/*
- * erts_pid2proc_safelock() is called from erts_pid2proc_opt() when
- * it wasn't possible to trylock all locks needed.
- * c_p - current process
- * c_p_have_locks - locks held on c_p
- * pid - process id of process we are looking up
- * proc - process struct of process we are looking
- * up (both in and out argument)
- * need_locks - all locks we need (including have_locks)
- * pix_lock - pix lock for process we are looking up
- * flags - option flags
- */
-void
-erts_pid2proc_safelock(Process *c_p,
- ErtsProcLocks c_p_have_locks,
- Process **proc,
- ErtsProcLocks need_locks,
- erts_pix_lock_t *pix_lock,
- int flags)
+Process *
+erts_pid2proc_opt(Process *c_p,
+ ErtsProcLocks c_p_have_locks,
+ Eterm pid,
+ ErtsProcLocks pid_need_locks,
+ int flags)
{
- Process *p = *proc;
- ERTS_LC_ASSERT(p->lock.refc > 0);
- ERTS_LC_ASSERT(process_tab[internal_pid_index(p->id)] == p);
- p->lock.refc++;
- erts_pix_unlock(pix_lock);
-
- proc_safelock(c_p,
- c_p ? ERTS_PID2PIXLOCK(c_p->id) : NULL,
- c_p_have_locks,
- c_p_have_locks,
- p,
- pix_lock,
- 0,
- need_locks);
+ Process *dec_refc_proc = NULL;
+ int need_ptl;
+ ErtsProcLocks need_locks;
+ Uint pix;
+ Process *proc;
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
+ ErtsProcLocks lcnt_locks;
+#endif
- erts_pix_lock(pix_lock);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ if (c_p) {
+ ErtsProcLocks might_unlock = c_p_have_locks & pid_need_locks;
+ if (might_unlock)
+ erts_proc_lc_might_unlock(c_p, might_unlock);
+ }
+#endif
- if (!p->is_exiting
- || ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
- && process_tab[internal_pid_index(p->id)] == p)) {
- ERTS_LC_ASSERT(p->lock.refc > 1);
- p->lock.refc--;
+ if (is_not_internal_pid(pid))
+ return NULL;
+ pix = internal_pid_index(pid);
+
+ ERTS_LC_ASSERT((pid_need_locks & ERTS_PROC_LOCKS_ALL) == pid_need_locks);
+ need_locks = pid_need_locks;
+
+ if (c_p && c_p->id == pid) {
+ ASSERT(c_p->id != ERTS_INVALID_PID);
+ ASSERT(c_p == erts_pix2proc(pix));
+
+ if (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
+ && ERTS_PROC_IS_EXITING(c_p))
+ return NULL;
+ need_locks &= ~c_p_have_locks;
+ if (!need_locks) {
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ erts_smp_proc_inc_refc(c_p);
+ return c_p;
+ }
}
- else {
- /* No proc. Note, we need to keep refc until after process unlock */
- erts_pix_unlock(pix_lock);
- erts_smp_proc_unlock__(p, pix_lock, need_locks);
- *proc = NULL;
- erts_pix_lock(pix_lock);
- ERTS_LC_ASSERT(p->lock.refc > 0);
- if (--p->lock.refc == 0) {
- erts_pix_unlock(pix_lock);
- erts_free_proc(p);
- erts_pix_lock(pix_lock);
+
+ need_ptl = !erts_get_scheduler_id();
+
+ if (need_ptl)
+ erts_smp_rwmtx_rwlock(&erts_proc_tab_rwmtx);
+
+ proc = (Process *) erts_smp_atomic_read_ddrb(&erts_proc.tab[pix]);
+
+ if (proc) {
+ if (proc->id != pid)
+ proc = NULL;
+ else if (!need_locks) {
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ erts_smp_proc_inc_refc(proc);
}
+ else {
+ int busy;
+
+#if ERTS_PROC_LOCK_OWN_IMPL
+#ifdef ERTS_ENABLE_LOCK_COUNT
+ lcnt_locks = need_locks;
+ if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) {
+ erts_lcnt_proc_lock(&proc->lock, need_locks);
+ }
+#endif
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ /* Make sure erts_pid2proc_safelock() is enough to handle
+ a potential lock order violation situation... */
+ busy = erts_proc_lc_trylock_force_busy(proc, need_locks);
+ if (!busy)
+#endif
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+ {
+ /* Try a quick trylock to grab all the locks we need. */
+ busy = (int) erts_smp_proc_raw_trylock__(proc, need_locks);
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_CHECK)
+ erts_proc_lc_trylock(proc, need_locks, !busy);
+#endif
+#ifdef ERTS_PROC_LOCK_DEBUG
+ if (!busy)
+ erts_proc_lock_op_debug(proc, need_locks, 1);
+#endif
+ }
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
+ if (flags & ERTS_P2P_FLG_TRY_LOCK)
+ erts_lcnt_proc_trylock(&proc->lock, need_locks,
+ busy ? EBUSY : 0);
+#endif
+
+ if (!busy) {
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ erts_smp_proc_inc_refc(proc);
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
+ /* all is great */
+ if (!(flags & ERTS_P2P_FLG_TRY_LOCK))
+ erts_lcnt_proc_lock_post_x(&proc->lock, lcnt_locks,
+ __FILE__, __LINE__);
+#endif
+
+ }
+ else {
+ if (flags & ERTS_P2P_FLG_TRY_LOCK)
+ proc = ERTS_PROC_LOCK_BUSY;
+ else {
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ erts_smp_proc_inc_refc(proc);
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
+ erts_lcnt_proc_lock_unaquire(&proc->lock, lcnt_locks);
+#endif
+
+ if (need_ptl) {
+ erts_smp_proc_inc_refc(proc);
+ dec_refc_proc = proc;
+ erts_smp_rwmtx_rwunlock(&erts_proc_tab_rwmtx);
+ need_ptl = 0;
+ }
+
+ proc_safelock(!need_ptl,
+ c_p,
+ c_p_have_locks,
+ c_p_have_locks,
+ proc,
+ 0,
+ need_locks);
+ }
+ }
+ }
}
+
+ if (need_ptl)
+ erts_smp_rwmtx_rwunlock(&erts_proc_tab_rwmtx);
+
+ if (need_locks
+ && proc
+ && proc != ERTS_PROC_LOCK_BUSY
+ && (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
+ ? ERTS_PROC_IS_EXITING(proc)
+ : (proc
+ != (Process *) erts_smp_atomic_read_nob(&erts_proc.tab[pix])))) {
+
+ erts_smp_proc_unlock(proc, need_locks);
+
+ if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
+ dec_refc_proc = proc;
+ proc = NULL;
+
+ }
+
+ if (dec_refc_proc)
+ erts_smp_proc_dec_refc(dec_refc_proc);
+
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_PROC_LOCK_DEBUG)
+ ERTS_LC_ASSERT(!proc
+ || proc == ERTS_PROC_LOCK_BUSY
+ || (pid_need_locks ==
+ (ERTS_PROC_LOCK_FLGS_READ_(&proc->lock)
+ & pid_need_locks)));
+#endif
+
+ return proc;
}
void
erts_proc_lock_init(Process *p)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
/* We always start with all locks locked */
#if ERTS_PROC_LOCK_ATOMIC_IMPL
erts_smp_atomic32_init_nob(&p->lock.flags,
@@ -979,16 +1097,32 @@ erts_proc_lock_init(Process *p)
p->lock.flags = ERTS_PROC_LOCKS_ALL;
#endif
p->lock.queues = NULL;
- p->lock.refc = 1;
-#ifdef ERTS_ENABLE_LOCK_COUNT
- erts_lcnt_proc_lock_init(p);
- erts_lcnt_proc_lock(&(p->lock), ERTS_PROC_LOCKS_ALL);
- erts_lcnt_proc_lock_post_x(&(p->lock), ERTS_PROC_LOCKS_ALL, __FILE__, __LINE__);
-#endif
-
#ifdef ERTS_ENABLE_LOCK_CHECK
erts_proc_lc_trylock(p, ERTS_PROC_LOCKS_ALL, 1);
#endif
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_mtx_init_x(&p->lock.main, "proc_main", p->id);
+ ethr_mutex_lock(&p->lock.main.mtx);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_lc_trylock(1, &p->lock.main.lc);
+#endif
+ erts_mtx_init_x(&p->lock.link, "proc_link", p->id);
+ ethr_mutex_lock(&p->lock.link.mtx);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_lc_trylock(1, &p->lock.link.lc);
+#endif
+ erts_mtx_init_x(&p->lock.msgq, "proc_msgq", p->id);
+ ethr_mutex_lock(&p->lock.msgq.mtx);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_lc_trylock(1, &p->lock.msgq.lc);
+#endif
+ erts_mtx_init_x(&p->lock.status, "proc_status", p->id);
+ ethr_mutex_lock(&p->lock.status.mtx);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_lc_trylock(1, &p->lock.status.lc);
+#endif
+#endif
+ erts_atomic32_init_nob(&p->lock.refc, 1);
#ifdef ERTS_PROC_LOCK_DEBUG
{
int i;
@@ -996,11 +1130,30 @@ erts_proc_lock_init(Process *p)
erts_smp_atomic32_init_nob(&p->lock.locked[i], (erts_aint32_t) 1);
}
#endif
+#ifdef ERTS_ENABLE_LOCK_COUNT
+ erts_lcnt_proc_lock_init(p);
+ erts_lcnt_proc_lock(&(p->lock), ERTS_PROC_LOCKS_ALL);
+ erts_lcnt_proc_lock_post_x(&(p->lock), ERTS_PROC_LOCKS_ALL, __FILE__, __LINE__);
+#endif
+}
+
+void
+erts_proc_lock_fin(Process *p)
+{
+#if ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_mtx_destroy(&p->lock.main);
+ erts_mtx_destroy(&p->lock.link);
+ erts_mtx_destroy(&p->lock.msgq);
+ erts_mtx_destroy(&p->lock.status);
+#endif
+#if defined(ERTS_ENABLE_LOCK_COUNT) && defined(ERTS_SMP)
+ erts_lcnt_proc_lock_destroy(p);
+#endif
}
/* --- Process lock counting ----------------------------------------------- */
-#ifdef ERTS_ENABLE_LOCK_COUNT
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_ENABLE_LOCK_COUNT)
void erts_lcnt_proc_lock_init(Process *p) {
if (erts_lcnt_rt_options & ERTS_LCNT_OPT_PROCLOCK) {
if (p->id != ERTS_INVALID_PID) {
@@ -1119,7 +1272,7 @@ void erts_lcnt_enable_proc_lock_count(int enable) {
int i;
for (i = 0; i < erts_max_processes; ++i) {
- Process* p = process_tab[i];
+ Process* p = erts_pix2proc(i);
if (p) {
if (enable) {
if (!ERTS_LCNT_LOCK_TYPE(&(p->lock.lcnt_main))) {
@@ -1141,6 +1294,8 @@ void erts_lcnt_enable_proc_lock_count(int enable) {
#ifdef ERTS_ENABLE_LOCK_CHECK
+#if ERTS_PROC_LOCK_OWN_IMPL
+
void
erts_proc_lc_lock(Process *p, ErtsProcLocks locks)
{
@@ -1213,9 +1368,12 @@ erts_proc_lc_unlock(Process *p, ErtsProcLocks locks)
}
}
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+
void
erts_proc_lc_might_unlock(Process *p, ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
p->id,
ERTS_LC_FLG_LT_PROCLOCK);
@@ -1235,11 +1393,22 @@ erts_proc_lc_might_unlock(Process *p, ErtsProcLocks locks)
lck.id = lc_id.proc_lock_main;
erts_lc_might_unlock(&lck);
}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_lc_might_unlock(&p->lock.main.lc);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_lc_might_unlock(&p->lock.link.lc);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_lc_might_unlock(&p->lock.msgq.lc);
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_lc_might_unlock(&p->lock.status.lc);
+#endif
}
void
erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
p->id,
ERTS_LC_FLG_LT_PROCLOCK);
@@ -1259,11 +1428,22 @@ erts_proc_lc_require_lock(Process *p, ErtsProcLocks locks)
lck.id = lc_id.proc_lock_status;
erts_lc_require_lock(&lck);
}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_lc_require_lock(&p->lock.main.lc);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_lc_require_lock(&p->lock.link.lc);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_lc_require_lock(&p->lock.msgq.lc);
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_lc_require_lock(&p->lock.status.lc);
+#endif
}
void
erts_proc_lc_unrequire_lock(Process *p, ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t lck = ERTS_LC_LOCK_INIT(-1,
p->id,
ERTS_LC_FLG_LT_PROCLOCK);
@@ -1283,8 +1463,19 @@ erts_proc_lc_unrequire_lock(Process *p, ErtsProcLocks locks)
lck.id = lc_id.proc_lock_main;
erts_lc_unrequire_lock(&lck);
}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_lc_unrequire_lock(&p->lock.main.lc);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_lc_unrequire_lock(&p->lock.link.lc);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_lc_unrequire_lock(&p->lock.msgq.lc);
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_lc_unrequire_lock(&p->lock.status.lc);
+#endif
}
+#if ERTS_PROC_LOCK_OWN_IMPL
int
erts_proc_lc_trylock_force_busy(Process *p, ErtsProcLocks locks)
@@ -1310,21 +1501,30 @@ erts_proc_lc_trylock_force_busy(Process *p, ErtsProcLocks locks)
return 0;
}
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
+
void erts_proc_lc_chk_only_proc_main(Process *p)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t proc_main = ERTS_LC_LOCK_INIT(lc_id.proc_lock_main,
p->id,
ERTS_LC_FLG_LT_PROCLOCK);
erts_lc_check_exact(&proc_main, 1);
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_lc_check_exact(&p->lock.main.lc, 1);
+#endif
}
+#if ERTS_PROC_LOCK_OWN_IMPL
#define ERTS_PROC_LC_EMPTY_LOCK_INIT \
ERTS_LC_LOCK_INIT(-1, THE_NON_VALUE, ERTS_LC_FLG_LT_PROCLOCK)
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
void
erts_proc_lc_chk_have_proc_locks(Process *p, ErtsProcLocks locks)
{
int have_locks_len = 0;
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t have_locks[4] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
ERTS_PROC_LC_EMPTY_LOCK_INIT,
ERTS_PROC_LC_EMPTY_LOCK_INIT,
@@ -1345,7 +1545,17 @@ erts_proc_lc_chk_have_proc_locks(Process *p, ErtsProcLocks locks)
have_locks[have_locks_len].id = lc_id.proc_lock_status;
have_locks[have_locks_len++].extra = p->id;
}
-
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_lc_lock_t have_locks[4];
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ have_locks[have_locks_len++] = p->lock.main.lc;
+ if (locks & ERTS_PROC_LOCK_LINK)
+ have_locks[have_locks_len++] = p->lock.link.lc;
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ have_locks[have_locks_len++] = p->lock.msgq.lc;
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ have_locks[have_locks_len++] = p->lock.status.lc;
+#endif
erts_lc_check(have_locks, have_locks_len, NULL, 0);
}
@@ -1354,6 +1564,7 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks)
{
int have_locks_len = 0;
int have_not_locks_len = 0;
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t have_locks[4] = {ERTS_PROC_LC_EMPTY_LOCK_INIT,
ERTS_PROC_LC_EMPTY_LOCK_INIT,
ERTS_PROC_LC_EMPTY_LOCK_INIT,
@@ -1395,6 +1606,27 @@ erts_proc_lc_chk_proc_locks(Process *p, ErtsProcLocks locks)
have_not_locks[have_not_locks_len].id = lc_id.proc_lock_status;
have_not_locks[have_not_locks_len++].extra = p->id;
}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_lc_lock_t have_locks[4];
+ erts_lc_lock_t have_not_locks[4];
+
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ have_locks[have_locks_len++] = p->lock.main.lc;
+ else
+ have_not_locks[have_not_locks_len++] = p->lock.main.lc;
+ if (locks & ERTS_PROC_LOCK_LINK)
+ have_locks[have_locks_len++] = p->lock.link.lc;
+ else
+ have_not_locks[have_not_locks_len++] = p->lock.link.lc;
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ have_locks[have_locks_len++] = p->lock.msgq.lc;
+ else
+ have_not_locks[have_not_locks_len++] = p->lock.msgq.lc;
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ have_locks[have_locks_len++] = p->lock.status.lc;
+ else
+ have_not_locks[have_not_locks_len++] = p->lock.status.lc;
+#endif
erts_lc_check(have_locks, have_locks_len,
have_not_locks, have_not_locks_len);
@@ -1404,6 +1636,8 @@ ErtsProcLocks
erts_proc_lc_my_proc_locks(Process *p)
{
int resv[4];
+ ErtsProcLocks res = 0;
+#if ERTS_PROC_LOCK_OWN_IMPL
erts_lc_lock_t locks[4] = {ERTS_LC_LOCK_INIT(lc_id.proc_lock_main,
p->id,
ERTS_LC_FLG_LT_PROCLOCK),
@@ -1416,8 +1650,12 @@ erts_proc_lc_my_proc_locks(Process *p)
ERTS_LC_LOCK_INIT(lc_id.proc_lock_status,
p->id,
ERTS_LC_FLG_LT_PROCLOCK)};
-
- ErtsProcLocks res = 0;
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_lc_lock_t locks[4] = {p->lock.main.lc,
+ p->lock.link.lc,
+ p->lock.msgq.lc,
+ p->lock.status.lc};
+#endif
erts_lc_have_locks(resv, locks, 4);
if (resv[0])
@@ -1450,7 +1688,7 @@ erts_proc_lc_chk_no_proc_locks(char *file, int line)
#endif /* #ifdef ERTS_ENABLE_LOCK_CHECK */
-#ifdef ERTS_PROC_LOCK_HARD_DEBUG
+#if ERTS_PROC_LOCK_OWN_IMPL && defined(ERTS_PROC_LOCK_HARD_DEBUG)
void
check_queue(erts_proc_lock_t *lck)
{
@@ -1483,4 +1721,4 @@ check_queue(erts_proc_lock_t *lck)
}
#endif
-#endif /* ERTS_SMP (the whole file) */
+#endif /* ERTS_SMP */
diff --git a/erts/emulator/beam/erl_process_lock.h b/erts/emulator/beam/erl_process_lock.h
index 413c45480c..7367e03b44 100644
--- a/erts/emulator/beam/erl_process_lock.h
+++ b/erts/emulator/beam/erl_process_lock.h
@@ -37,10 +37,21 @@
#include "erl_smp.h"
+#if defined(VALGRIND) || defined(ETHR_DISABLE_NATIVE_IMPLS)
+# define ERTS_PROC_LOCK_OWN_IMPL 0
+#else
+# define ERTS_PROC_LOCK_OWN_IMPL 1
+#endif
+
#define ERTS_PROC_LOCK_ATOMIC_IMPL 0
#define ERTS_PROC_LOCK_SPINLOCK_IMPL 0
#define ERTS_PROC_LOCK_MUTEX_IMPL 0
+#if !ERTS_PROC_LOCK_OWN_IMPL
+#define ERTS_PROC_LOCK_RAW_MUTEX_IMPL 1
+#else
+#define ERTS_PROC_LOCK_RAW_MUTEX_IMPL 0
+
#if defined(ETHR_HAVE_32BIT_NATIVE_ATOMIC_OPS)
# undef ERTS_PROC_LOCK_ATOMIC_IMPL
# define ERTS_PROC_LOCK_ATOMIC_IMPL 1
@@ -52,6 +63,8 @@
# define ERTS_PROC_LOCK_MUTEX_IMPL 1
#endif
+#endif
+
#define ERTS_PROC_LOCK_MAX_BIT 3
typedef erts_aint32_t ErtsProcLocks;
@@ -59,22 +72,31 @@ typedef erts_aint32_t ErtsProcLocks;
typedef struct erts_proc_lock_queues_t_ erts_proc_lock_queues_t;
typedef struct erts_proc_lock_t_ {
+#if ERTS_PROC_LOCK_OWN_IMPL
#if ERTS_PROC_LOCK_ATOMIC_IMPL
erts_smp_atomic32_t flags;
#else
ErtsProcLocks flags;
#endif
erts_proc_lock_queues_t *queues;
- Sint32 refc;
-#ifdef ERTS_PROC_LOCK_DEBUG
- erts_smp_atomic32_t locked[ERTS_PROC_LOCK_MAX_BIT+1];
-#endif
#ifdef ERTS_ENABLE_LOCK_COUNT
erts_lcnt_lock_t lcnt_main;
erts_lcnt_lock_t lcnt_link;
erts_lcnt_lock_t lcnt_msgq;
erts_lcnt_lock_t lcnt_status;
#endif
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ erts_mtx_t main;
+ erts_mtx_t link;
+ erts_mtx_t msgq;
+ erts_mtx_t status;
+#else
+# error "no implementation"
+#endif
+ erts_atomic32_t refc;
+#ifdef ERTS_PROC_LOCK_DEBUG
+ erts_smp_atomic32_t locked[ERTS_PROC_LOCK_MAX_BIT+1];
+#endif
} erts_proc_lock_t;
/* Process lock flags */
@@ -107,11 +129,9 @@ typedef struct erts_proc_lock_t_ {
/*
* Status lock:
* Protects the following fields in the process structure:
- * * status
- * * rstatus
- * * status_flags
* * pending_suspenders
* * suspendee
+ * * ...
*/
#define ERTS_PROC_LOCK_STATUS (((ErtsProcLocks) 1) << ERTS_PROC_LOCK_MAX_BIT)
@@ -143,14 +163,11 @@ typedef struct erts_proc_lock_t_ {
* Other rules regarding process locking:
*
* Exiting processes:
- * When changing status to P_EXITING on a process, you are required
- * to take all process locks (ERTS_PROC_LOCKS_ALL). Thus, by holding
- * at least one process lock (whichever one doesn't matter) you
- * are guaranteed that the process won't exit until the lock you are
- * holding has been released. Appart from all process locks also
- * the pix lock corresponding to the process has to be held.
- * At the same time as status is changed to P_EXITING, also the
- * field 'is_exiting' in the process structure is set to a value != 0.
+ * When changing state to exiting (ERTS_PSFLG_EXITING) on a process,
+ * you are required to take all process locks (ERTS_PROC_LOCKS_ALL).
+ * Thus, by holding at least one process lock (whichever one doesn't
+ * matter) you are guaranteed that the process won't exit until the
+ * lock you are holding has been released.
*
* Lock order:
* Process locks with low numeric values has to be locked before
@@ -262,12 +279,10 @@ typedef struct {
} u;
} erts_pix_lock_t;
-#define ERTS_PIX2PIXLOCKIX(PIX) \
- ((PIX) & ((1 << ERTS_PIX_LOCKS_BITS) - 1))
-#define ERTS_PIX2PIXLOCK(PIX) \
- (&erts_pix_locks[ERTS_PIX2PIXLOCKIX((PIX))])
#define ERTS_PID2PIXLOCK(PID) \
- ERTS_PIX2PIXLOCK(internal_pid_data((PID)))
+ (&erts_pix_locks[(internal_pid_data((PID)) & ((1 << ERTS_PIX_LOCKS_BITS) - 1))])
+
+#if ERTS_PROC_LOCK_OWN_IMPL
#if ERTS_PROC_LOCK_ATOMIC_IMPL
@@ -337,11 +352,13 @@ erts_proc_lock_flags_cmpxchg(erts_proc_lock_t *lck, ErtsProcLocks new,
#define ERTS_PROC_LOCK_FLGS_READ_(L) ((L)->flags)
#endif /* end no opt atomic ops */
+#endif /* ERTS_PROC_LOCK_OWN_IMPL */
extern erts_pix_lock_t erts_pix_locks[ERTS_NO_OF_PIX_LOCKS];
void erts_init_proc_lock(int cpus);
void erts_proc_lock_prepare_proc_lock_waiter(void);
+#if ERTS_PROC_LOCK_OWN_IMPL
void erts_proc_lock_failed(Process *,
erts_pix_lock_t *,
ErtsProcLocks,
@@ -349,6 +366,7 @@ void erts_proc_lock_failed(Process *,
void erts_proc_unlock_failed(Process *,
erts_pix_lock_t *,
ErtsProcLocks);
+#endif
ERTS_GLB_INLINE void erts_pix_lock(erts_pix_lock_t *);
ERTS_GLB_INLINE void erts_pix_unlock(erts_pix_lock_t *);
@@ -412,6 +430,7 @@ ERTS_GLB_INLINE int erts_lc_pix_lock_is_locked(erts_pix_lock_t *pixlck)
ERTS_GLB_INLINE ErtsProcLocks
erts_smp_proc_raw_trylock__(Process *p, ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
ErtsProcLocks expct_lflgs = 0;
while (1) {
@@ -431,8 +450,38 @@ erts_smp_proc_raw_trylock__(Process *p, ErtsProcLocks locks)
/* cmpxchg failed, try again (should be rare). */
expct_lflgs = lflgs;
}
-}
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ if (erts_mtx_trylock(&p->lock.main) == EBUSY)
+ goto busy_main;
+ if (locks & ERTS_PROC_LOCK_LINK)
+ if (erts_mtx_trylock(&p->lock.link) == EBUSY)
+ goto busy_link;
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ if (erts_mtx_trylock(&p->lock.msgq) == EBUSY)
+ goto busy_msgq;
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ if (erts_mtx_trylock(&p->lock.status) == EBUSY)
+ goto busy_status;
+
+ return 0;
+
+busy_status:
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_mtx_unlock(&p->lock.msgq);
+busy_msgq:
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_mtx_unlock(&p->lock.link);
+busy_link:
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_mtx_unlock(&p->lock.main);
+busy_main:
+
+ return EBUSY;
+#endif
+}
ERTS_GLB_INLINE void
#ifdef ERTS_ENABLE_LOCK_COUNT
@@ -446,10 +495,13 @@ erts_smp_proc_lock__(Process *p,
ErtsProcLocks locks)
#endif
{
+#if ERTS_PROC_LOCK_OWN_IMPL
+
ErtsProcLocks old_lflgs;
#if !ERTS_PROC_LOCK_ATOMIC_IMPL
erts_pix_lock(pix_lck);
#endif
+
#ifdef ERTS_ENABLE_LOCK_COUNT
erts_lcnt_proc_lock(&(p->lock), locks);
#endif
@@ -473,12 +525,14 @@ erts_smp_proc_lock__(Process *p,
erts_pix_unlock(pix_lck);
}
#endif
+
#ifdef ERTS_ENABLE_LOCK_COUNT
erts_lcnt_proc_lock_post_x(&(p->lock), locks, file, line);
#endif
#ifdef ERTS_ENABLE_LOCK_CHECK
erts_proc_lc_lock(p, locks);
#endif
+
#ifdef ERTS_PROC_LOCK_DEBUG
erts_proc_lock_op_debug(p, locks, 1);
#endif
@@ -486,6 +540,22 @@ erts_smp_proc_lock__(Process *p,
#if ERTS_PROC_LOCK_ATOMIC_IMPL
ETHR_COMPILER_BARRIER;
#endif
+
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_mtx_lock(&p->lock.main);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_mtx_lock(&p->lock.link);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_mtx_lock(&p->lock.msgq);
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_mtx_lock(&p->lock.status);
+
+#ifdef ERTS_PROC_LOCK_DEBUG
+ erts_proc_lock_op_debug(p, locks, 1);
+#endif
+
+#endif
}
ERTS_GLB_INLINE void
@@ -493,6 +563,7 @@ erts_smp_proc_unlock__(Process *p,
erts_pix_lock_t *pix_lck,
ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
ErtsProcLocks old_lflgs;
#if ERTS_PROC_LOCK_ATOMIC_IMPL
@@ -557,6 +628,23 @@ erts_smp_proc_unlock__(Process *p,
break;
}
+
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+
+#ifdef ERTS_PROC_LOCK_DEBUG
+ erts_proc_lock_op_debug(p, locks, 0);
+#endif
+
+ if (locks & ERTS_PROC_LOCK_STATUS)
+ erts_mtx_unlock(&p->lock.status);
+ if (locks & ERTS_PROC_LOCK_MSGQ)
+ erts_mtx_unlock(&p->lock.msgq);
+ if (locks & ERTS_PROC_LOCK_LINK)
+ erts_mtx_unlock(&p->lock.link);
+ if (locks & ERTS_PROC_LOCK_MAIN)
+ erts_mtx_unlock(&p->lock.main);
+#endif
+
}
ERTS_GLB_INLINE int
@@ -564,6 +652,7 @@ erts_smp_proc_trylock__(Process *p,
erts_pix_lock_t *pix_lck,
ErtsProcLocks locks)
{
+#if ERTS_PROC_LOCK_OWN_IMPL
int res;
#ifdef ERTS_ENABLE_LOCK_CHECK
@@ -575,6 +664,7 @@ erts_smp_proc_trylock__(Process *p,
else
#endif
{
+
#if !ERTS_PROC_LOCK_ATOMIC_IMPL
erts_pix_lock(pix_lck);
#endif
@@ -613,8 +703,18 @@ erts_smp_proc_trylock__(Process *p,
#if ERTS_PROC_LOCK_ATOMIC_IMPL
ETHR_COMPILER_BARRIER;
#endif
-
return res;
+
+#elif ERTS_PROC_LOCK_RAW_MUTEX_IMPL
+ if (erts_smp_proc_raw_trylock__(p, locks) != 0)
+ return EBUSY;
+ else {
+#ifdef ERTS_PROC_LOCK_DEBUG
+ erts_proc_lock_op_debug(p, locks, 1);
+#endif
+ return 0;
+ }
+#endif
}
#ifdef ERTS_PROC_LOCK_DEBUG
@@ -713,44 +813,36 @@ erts_smp_proc_trylock(Process *p, ErtsProcLocks locks)
#endif
}
-
ERTS_GLB_INLINE void erts_smp_proc_inc_refc(Process *p)
{
#ifdef ERTS_SMP
- erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id);
- erts_pix_lock(pixlck);
- ERTS_LC_ASSERT(p->lock.refc > 0);
- p->lock.refc++;
- erts_pix_unlock(pixlck);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ erts_aint32_t refc = erts_atomic32_inc_read_nob(&p->lock.refc);
+ ERTS_SMP_LC_ASSERT(refc > 1);
+#else
+ erts_atomic32_inc_nob(&p->lock.refc);
+#endif
#endif
}
ERTS_GLB_INLINE void erts_smp_proc_dec_refc(Process *p)
{
#ifdef ERTS_SMP
- Process *fp;
- erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id);
- erts_pix_lock(pixlck);
- ERTS_LC_ASSERT(p->lock.refc > 0);
- fp = --p->lock.refc == 0 ? p : NULL;
- erts_pix_unlock(pixlck);
- if (fp)
- erts_free_proc(fp);
+ erts_aint32_t refc = erts_atomic32_dec_read_nob(&p->lock.refc);
+ ERTS_SMP_LC_ASSERT(refc >= 0);
+ if (refc == 0)
+ erts_free_proc(p);
#endif
}
-ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 refc)
+ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 add_refc)
{
#ifdef ERTS_SMP
- Process *fp;
- erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id);
- erts_pix_lock(pixlck);
- ERTS_LC_ASSERT(p->lock.refc > 0);
- p->lock.refc += refc;
- fp = p->lock.refc == 0 ? p : NULL;
- erts_pix_unlock(pixlck);
- if (fp)
- erts_free_proc(fp);
+ erts_aint32_t refc = erts_atomic32_add_read_nob(&p->lock.refc,
+ (erts_aint32_t) add_refc);
+ ERTS_SMP_LC_ASSERT(refc >= 0);
+ if (refc == 0)
+ erts_free_proc(p);
#endif
}
@@ -758,6 +850,7 @@ ERTS_GLB_INLINE void erts_smp_proc_add_refc(Process *p, Sint32 refc)
#ifdef ERTS_SMP
void erts_proc_lock_init(Process *);
+void erts_proc_lock_fin(Process *);
void erts_proc_safelock(Process *a_proc,
ErtsProcLocks a_have_locks,
ErtsProcLocks a_need_locks,
@@ -790,211 +883,75 @@ extern const Process erts_proc_lock_busy;
#define erts_pid2proc(PROC, HL, PID, NL) \
erts_pid2proc_opt((PROC), (HL), (PID), (NL), 0)
-ERTS_GLB_INLINE Process *
-erts_pid2proc_opt(Process *, ErtsProcLocks, Eterm, ErtsProcLocks, int);
-#ifdef ERTS_SMP
-void
-erts_pid2proc_safelock(Process *c_p,
- ErtsProcLocks c_p_have_locks,
- Process **proc,
- ErtsProcLocks need_locks,
- erts_pix_lock_t *pix_lock,
- int flags);
-ERTS_GLB_INLINE Process *erts_pid2proc_unlocked_opt(Eterm pid, int flags);
-#define erts_pid2proc_unlocked(PID) erts_pid2proc_unlocked_opt((PID), 0)
-#else
-#define erts_pid2proc_unlocked_opt(PID, FLGS) \
- erts_pid2proc_opt(NULL, 0, (PID), 0, FLGS)
-#define erts_pid2proc_unlocked(PID) erts_pid2proc_opt(NULL, 0, (PID), 0, 0)
+ERTS_GLB_INLINE Process *erts_pix2proc(int ix);
+ERTS_GLB_INLINE Process *erts_proc_lookup_raw(Eterm pid);
+ERTS_GLB_INLINE Process *erts_proc_lookup(Eterm pid);
+
+#ifndef ERTS_SMP
+ERTS_GLB_INLINE
#endif
+Process *erts_pid2proc_opt(Process *, ErtsProcLocks, Eterm, ErtsProcLocks, int);
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
-ERTS_GLB_INLINE Process *
-#ifdef ERTS_SMP
-erts_pid2proc_unlocked_opt(Eterm pid, int flags)
-#else
-erts_pid2proc_opt(Process *c_p_unused,
- ErtsProcLocks c_p_have_locks_unused,
- Eterm pid,
- ErtsProcLocks pid_need_locks_unused,
- int flags)
-#endif
+ERTS_GLB_INLINE Process *erts_pix2proc(int ix)
{
- Uint pix;
Process *proc;
+ ASSERT(0 <= ix && ix < erts_proc.max);
+ proc = (Process *) erts_smp_atomic_read_nob(&erts_proc.tab[ix]);
+ return proc == ERTS_PROC_LOCK_BUSY ? NULL : proc;
+}
+
+ERTS_GLB_INLINE Process *erts_proc_lookup_raw(Eterm pid)
+{
+ Process *proc;
+ int pix;
+
+ /*
+ * In SMP case: Only scheduler threads are allowed
+ * to use this function. Other threads need to
+ * atomicaly increment refc at lookup, i.e., use
+ * erts_pid2proc_opt() with ERTS_P2P_FLG_SMP_INC_REFC.
+ */
+ ERTS_SMP_LC_ASSERT(erts_get_scheduler_id());
if (is_not_internal_pid(pid))
return NULL;
pix = internal_pid_index(pid);
- if(pix >= erts_max_processes)
+
+ proc = (Process *) erts_smp_atomic_read_ddrb(&erts_proc.tab[pix]);
+
+ if (proc && proc->id != pid)
return NULL;
- proc = process_tab[pix];
- if (proc) {
- if (proc->id != pid
- || (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
- && proc->status == P_EXITING))
- proc = NULL;
- }
+
return proc;
}
-#ifdef ERTS_SMP
+ERTS_GLB_INLINE Process *erts_proc_lookup(Eterm pid)
+{
+ Process *proc = erts_proc_lookup_raw(pid);
+ if (proc && ERTS_PROC_IS_EXITING(proc))
+ return NULL;
+ return proc;
+}
+#ifndef ERTS_SMP
ERTS_GLB_INLINE Process *
-erts_pid2proc_opt(Process *c_p,
- ErtsProcLocks c_p_have_locks,
+erts_pid2proc_opt(Process *c_p_unused,
+ ErtsProcLocks c_p_have_locks_unused,
Eterm pid,
- ErtsProcLocks pid_need_locks,
+ ErtsProcLocks pid_need_locks_unused,
int flags)
{
- erts_pix_lock_t *pix_lock;
- ErtsProcLocks need_locks;
- Uint pix;
- Process *proc;
-#ifdef ERTS_ENABLE_LOCK_COUNT
- ErtsProcLocks lcnt_locks;
-#endif
-
-#ifdef ERTS_ENABLE_LOCK_CHECK
- if (c_p) {
- ErtsProcLocks might_unlock = c_p_have_locks & pid_need_locks;
- if (might_unlock)
- erts_proc_lc_might_unlock(c_p, might_unlock);
- }
-#endif
- if (is_not_internal_pid(pid)) {
- proc = NULL;
- goto done;
- }
- pix = internal_pid_index(pid);
- if(pix >= erts_max_processes) {
- proc = NULL;
- goto done;
- }
-
- ERTS_LC_ASSERT((pid_need_locks & ERTS_PROC_LOCKS_ALL) == pid_need_locks);
- need_locks = pid_need_locks;
-
- pix_lock = ERTS_PIX2PIXLOCK(pix);
-
- if (c_p && c_p->id == pid) {
- ASSERT(c_p->id != ERTS_INVALID_PID);
- ASSERT(c_p == process_tab[pix]);
- if (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X) && c_p->is_exiting) {
- proc = NULL;
- goto done;
- }
- need_locks &= ~c_p_have_locks;
- if (!need_locks) {
- proc = c_p;
- erts_pix_lock(pix_lock);
- if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
- proc->lock.refc++;
- erts_pix_unlock(pix_lock);
- goto done;
- }
- }
-
- erts_pix_lock(pix_lock);
-
- proc = process_tab[pix];
- if (proc) {
- if (proc->id != pid || (!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
- && ERTS_PROC_IS_EXITING(proc))) {
- proc = NULL;
- }
- else if (!need_locks) {
- if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
- proc->lock.refc++;
- }
- else {
- int busy;
-
-#ifdef ERTS_ENABLE_LOCK_COUNT
- lcnt_locks = need_locks;
- if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) {
- erts_lcnt_proc_lock(&proc->lock, need_locks);
- }
-#endif
-
-#ifdef ERTS_ENABLE_LOCK_CHECK
- /* Make sure erts_pid2proc_safelock() is enough to handle
- a potential lock order violation situation... */
- busy = erts_proc_lc_trylock_force_busy(proc, need_locks);
- if (!busy)
-#endif
- {
- /* Try a quick trylock to grab all the locks we need. */
- busy = (int) erts_smp_proc_raw_trylock__(proc, need_locks);
-#ifdef ERTS_ENABLE_LOCK_CHECK
- erts_proc_lc_trylock(proc, need_locks, !busy);
-#endif
-#ifdef ERTS_PROC_LOCK_DEBUG
- if (!busy)
- erts_proc_lock_op_debug(proc, need_locks, 1);
-#endif
- }
-
-#ifdef ERTS_ENABLE_LOCK_COUNT
- if (flags & ERTS_P2P_FLG_TRY_LOCK) {
- if (busy) {
- erts_lcnt_proc_trylock(&proc->lock, need_locks, EBUSY);
- } else {
- erts_lcnt_proc_trylock(&proc->lock, need_locks, 0);
- }
- }
-#endif
- if (!busy) {
- if (flags & ERTS_P2P_FLG_SMP_INC_REFC)
- proc->lock.refc++;
-#ifdef ERTS_ENABLE_LOCK_COUNT
- /* all is great */
- if (!(flags & ERTS_P2P_FLG_TRY_LOCK)) {
- erts_lcnt_proc_lock_post_x(&proc->lock, lcnt_locks, __FILE__, __LINE__);
- }
-#endif
- }
- else {
- if (flags & ERTS_P2P_FLG_TRY_LOCK)
- proc = ERTS_PROC_LOCK_BUSY;
- else {
-#ifdef ERTS_ENABLE_LOCK_COUNT
- erts_lcnt_proc_lock_unaquire(&proc->lock, lcnt_locks);
-#endif
- erts_pid2proc_safelock(c_p,
- c_p_have_locks,
- &proc,
- pid_need_locks,
- pix_lock,
- flags);
- if (proc && (flags & ERTS_P2P_FLG_SMP_INC_REFC))
- proc->lock.refc++;
- }
- }
- }
- }
-
- erts_pix_unlock(pix_lock);
-#ifdef ERTS_PROC_LOCK_DEBUG
- ERTS_LC_ASSERT(!proc
- || proc == ERTS_PROC_LOCK_BUSY
- || (pid_need_locks ==
- (ERTS_PROC_LOCK_FLGS_READ_(&proc->lock)
- & pid_need_locks)));
-#endif
-
-
- done:
-
-#if ERTS_PROC_LOCK_ATOMIC_IMPL
- ETHR_COMPILER_BARRIER;
-#endif
-
- return proc;
+ Process *proc = erts_proc_lookup_raw(pid);
+ return ((!(flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
+ && proc
+ && ERTS_PROC_IS_EXITING(proc))
+ ? NULL
+ : proc);
}
-#endif /* ERTS_SMP */
+#endif /* !ERTS_SMP */
#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
diff --git a/erts/emulator/beam/erl_threads.h b/erts/emulator/beam/erl_threads.h
index ee47c98009..17628286bc 100644
--- a/erts/emulator/beam/erl_threads.h
+++ b/erts/emulator/beam/erl_threads.h
@@ -258,10 +258,6 @@
#include "sys.h"
-typedef struct { SWord sint[2]; } erts_no_dw_atomic_t;
-typedef SWord erts_no_atomic_t;
-typedef Sint32 erts_no_atomic32_t;
-
#ifdef USE_THREADS
#define ETHR_TRY_INLINE_FUNCS
@@ -411,12 +407,15 @@ typedef struct {
typedef int erts_rwmtx_t;
typedef int erts_tsd_key_t;
typedef int erts_tse_t;
-#define erts_dw_aint_t erts_no_dw_atomic_t
-#define erts_dw_atomic_t erts_no_dw_atomic_t
-#define erts_aint_t SWord
-#define erts_atomic_t erts_no_atomic_t
-#define erts_aint32_t Sint32
-#define erts_atomic32_t erts_no_atomic32_t
+
+typedef struct { SWord sint[2]; } erts_dw_aint_t;
+typedef SWord erts_aint_t;
+typedef Sint32 erts_aint32_t;
+
+#define erts_dw_atomic_t erts_dw_aint_t
+#define erts_atomic_t erts_aint_t
+#define erts_atomic32_t erts_aint32_t
+
#if __GNUC__ > 2
typedef struct { } erts_spinlock_t;
typedef struct { } erts_rwlock_t;
@@ -425,6 +424,14 @@ typedef struct { int gcc_is_buggy; } erts_spinlock_t;
typedef struct { int gcc_is_buggy; } erts_rwlock_t;
#endif
+#ifdef WORDS_BIGENDIAN
+#define ERTS_DW_AINT_LOW_WORD 1
+#define ERTS_DW_AINT_HIGH_WORD 0
+#else
+#define ERTS_DW_AINT_LOW_WORD 0
+#define ERTS_DW_AINT_HIGH_WORD 1
+#endif
+
#define ERTS_MTX_INITER 0
#define ERTS_CND_INITER 0
#define ERTS_THR_INIT_DATA_DEF_INITER 0
@@ -433,6 +440,10 @@ typedef struct { int gcc_is_buggy; } erts_rwlock_t;
#endif /* #ifdef USE_THREADS */
+#define erts_no_dw_atomic_t erts_dw_aint_t
+#define erts_no_atomic_t erts_aint_t
+#define erts_no_atomic32_t erts_aint32_t
+
#define ERTS_AINT_NULL ((erts_aint_t) NULL)
#define ERTS_AINT_T_MAX (~(((erts_aint_t) 1) << (sizeof(erts_aint_t)*8-1)))
diff --git a/erts/emulator/beam/erl_time.h b/erts/emulator/beam/erl_time.h
index 6c6e193818..4bbdcaa3e3 100644
--- a/erts/emulator/beam/erl_time.h
+++ b/erts/emulator/beam/erl_time.h
@@ -118,9 +118,11 @@ ERTS_GLB_INLINE void erts_do_time_add(erts_short_time_t elapsed)
void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec);
#endif
+typedef UWord erts_approx_time_t;
+erts_approx_time_t erts_get_approx_time(void);
+
void erts_get_timeval(SysTimeval *tv);
erts_time_t erts_get_time(void);
-void erts_get_emu_time(SysTimeval *);
ERTS_GLB_INLINE int erts_cmp_timeval(SysTimeval *t1p, SysTimeval *t2p);
diff --git a/erts/emulator/beam/erl_time_sup.c b/erts/emulator/beam/erl_time_sup.c
index 1d0735aa99..c1b4408c06 100644
--- a/erts/emulator/beam/erl_time_sup.c
+++ b/erts/emulator/beam/erl_time_sup.c
@@ -91,6 +91,41 @@ static SysTimeval then; /* Used in get_now */
static SysTimeval last_emu_time; /* Used in erts_get_emu_time() */
SysTimeval erts_first_emu_time; /* Used in erts_get_emu_time() */
+union {
+ erts_smp_atomic_t time;
+ char align[ERTS_CACHE_LINE_SIZE];
+} approx erts_align_attribute(ERTS_CACHE_LINE_SIZE);
+
+static void
+init_approx_time(void)
+{
+ erts_smp_atomic_init_nob(&approx.time, 0);
+}
+
+static ERTS_INLINE erts_approx_time_t
+get_approx_time(void)
+{
+ return (erts_approx_time_t) erts_smp_atomic_read_nob(&approx.time);
+}
+
+static ERTS_INLINE void
+update_approx_time(SysTimeval *tv)
+{
+ erts_approx_time_t new_secs = (erts_approx_time_t) tv->tv_sec;
+ erts_approx_time_t old_secs = get_approx_time();
+ if (old_secs != new_secs)
+ erts_smp_atomic_set_nob(&approx.time, new_secs);
+}
+
+/*
+ * erts_get_approx_time() returns an *approximate* time
+ * in seconds. NOTE that this time may jump backwards!!!
+ */
+erts_approx_time_t
+erts_get_approx_time(void)
+{
+ return get_approx_time();
+}
#ifdef HAVE_GETHRTIME
@@ -398,6 +433,8 @@ erts_init_time_sup(void)
{
erts_smp_mtx_init(&erts_timeofday_mtx, "timeofday");
+ init_approx_time();
+
last_emu_time.tv_sec = 0;
last_emu_time.tv_usec = 0;
@@ -417,7 +454,7 @@ erts_init_time_sup(void)
gtv = inittv;
then.tv_sec = then.tv_usec = 0;
- erts_get_emu_time(&erts_first_emu_time);
+ erts_deliver_time();
return CLOCK_RESOLUTION;
}
@@ -873,6 +910,8 @@ get_now(Uint* megasec, Uint* sec, Uint* microsec)
*megasec = (Uint) (now.tv_sec / 1000000);
*sec = (Uint) (now.tv_sec % 1000000);
*microsec = (Uint) (now.tv_usec);
+
+ update_approx_time(&now);
}
void
@@ -885,6 +924,8 @@ get_sys_now(Uint* megasec, Uint* sec, Uint* microsec)
*megasec = (Uint) (now.tv_sec / 1000000);
*sec = (Uint) (now.tv_sec % 1000000);
*microsec = (Uint) (now.tv_usec);
+
+ update_approx_time(&now);
}
@@ -901,6 +942,8 @@ void erts_deliver_time(void) {
do_erts_deliver_time(&now);
erts_smp_mtx_unlock(&erts_timeofday_mtx);
+
+ update_approx_time(&now);
}
/* get *real* time (not ticks) remaining until next timeout - if there
@@ -949,6 +992,7 @@ void erts_get_timeval(SysTimeval *tv)
erts_smp_mtx_lock(&erts_timeofday_mtx);
get_tolerant_timeofday(tv);
erts_smp_mtx_unlock(&erts_timeofday_mtx);
+ update_approx_time(tv);
}
erts_time_t
@@ -961,7 +1005,9 @@ erts_get_time(void)
get_tolerant_timeofday(&sys_tv);
erts_smp_mtx_unlock(&erts_timeofday_mtx);
-
+
+ update_approx_time(&sys_tv);
+
return sys_tv.tv_sec;
}
@@ -977,38 +1023,3 @@ void erts_get_now_cpu(Uint* megasec, Uint* sec, Uint* microsec) {
*sec = (Uint)(tp.tv_sec % 1000000);
}
#endif
-
-
-/*
- * erts_get_emu_time() is similar to get_now(). You will
- * always get different times from erts_get_emu_time(), but they
- * may equal a time from get_now().
- *
- * erts_get_emu_time() is only used internally in the emulator in
- * order to order emulator internal events.
- */
-
-void
-erts_get_emu_time(SysTimeval *this_emu_time_p)
-{
- erts_smp_mtx_lock(&erts_timeofday_mtx);
-
- get_tolerant_timeofday(this_emu_time_p);
-
- /* Make sure time is later than last */
- if (last_emu_time.tv_sec > this_emu_time_p->tv_sec ||
- (last_emu_time.tv_sec == this_emu_time_p->tv_sec
- && last_emu_time.tv_usec >= this_emu_time_p->tv_usec)) {
- *this_emu_time_p = last_emu_time;
- this_emu_time_p->tv_usec++;
- }
- /* Check for carry from above + general reasonability */
- if (this_emu_time_p->tv_usec >= 1000000) {
- this_emu_time_p->tv_usec = 0;
- this_emu_time_p->tv_sec++;
- }
-
- last_emu_time = *this_emu_time_p;
-
- erts_smp_mtx_unlock(&erts_timeofday_mtx);
-}
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index 009ca1eb52..d04a91f18c 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -64,7 +64,7 @@ int erts_cpu_timestamp;
#endif
static erts_smp_mtx_t smq_mtx;
-static erts_smp_mtx_t sys_trace_mtx;
+static erts_smp_rwmtx_t sys_trace_rwmtx;
enum ErtsSysMsgType {
SYS_MSG_TYPE_UNDEFINED,
@@ -91,7 +91,12 @@ static void init_sys_msg_dispatcher(void);
#endif
void erts_init_trace(void) {
- erts_smp_mtx_init(&sys_trace_mtx, "sys_tracers");
+ erts_smp_rwmtx_opt_t rwmtx_opts = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
+ rwmtx_opts.type = ERTS_SMP_RWMTX_TYPE_EXTREMELY_FREQUENT_READ;
+ rwmtx_opts.lived = ERTS_SMP_RWMTX_LONG_LIVED;
+
+ erts_smp_rwmtx_init_opt(&sys_trace_rwmtx, &rwmtx_opts, "sys_tracers");
+
#ifdef HAVE_ERTS_NOW_CPU
erts_cpu_timestamp = 0;
#endif
@@ -151,8 +156,8 @@ do { (RES) = (TPID); } while(0)
#define ERTS_TRACER_REF_TYPE Process *
#define ERTS_GET_TRACER_REF(RES, TPID, TRACEE_FLGS) \
do { \
- (RES) = process_tab[internal_pid_index((TPID))]; \
- if (INVALID_PID((RES), (TPID)) || !((RES)->trace_flags & F_TRACER)) { \
+ (RES) = erts_proc_lookup((TPID)); \
+ if (!(RES) || !((RES)->trace_flags & F_TRACER)) { \
(TPID) = NIL; \
(TRACEE_FLGS) &= ~TRACEE_FLAGS; \
return; \
@@ -169,10 +174,10 @@ erts_system_profile_setup_active_schedulers(void)
active_sched = erts_active_schedulers();
}
-void
-erts_trace_check_exiting(Eterm exiting)
+static void
+exiting_reset(Eterm exiting)
{
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
if (exiting == default_tracer) {
default_tracer = NIL;
default_trace_flags &= TRACEE_FLAGS;
@@ -202,29 +207,49 @@ erts_trace_check_exiting(Eterm exiting)
erts_system_profile_clear(NULL);
#endif
}
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
+}
+
+void
+erts_trace_check_exiting(Eterm exiting)
+{
+ int reset = 0;
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
+ if (exiting == default_tracer)
+ reset = 1;
+ else if (exiting == system_seq_tracer)
+ reset = 1;
+ else if (exiting == system_monitor)
+ reset = 1;
+ else if (exiting == system_profile)
+ reset = 1;
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
+ if (reset)
+ exiting_reset(exiting);
+}
+
+static ERTS_INLINE int
+is_valid_tracer(Eterm tracer)
+{
+ return erts_proc_lookup(tracer) || erts_is_valid_tracer_port(tracer);
}
Eterm
erts_set_system_seq_tracer(Process *c_p, ErtsProcLocks c_p_locks, Eterm new)
{
- Eterm old = THE_NON_VALUE;
+ Eterm old;
- if (new != am_false) {
- if (!erts_pid2proc(c_p, c_p_locks, new, 0)
- && !erts_is_valid_tracer_port(new)) {
- return old;
- }
- }
+ if (new != am_false && !is_valid_tracer(new))
+ return THE_NON_VALUE;
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
old = system_seq_tracer;
system_seq_tracer = new;
#ifdef DEBUG_PRINTOUTS
erts_fprintf(stderr, "set seq tracer new=%T old=%T\n", new, old);
#endif
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
return old;
}
@@ -232,12 +257,12 @@ Eterm
erts_get_system_seq_tracer(void)
{
Eterm st;
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
st = system_seq_tracer;
#ifdef DEBUG_PRINTOUTS
erts_fprintf(stderr, "get seq tracer %T\n", st);
#endif
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
return st;
}
@@ -250,7 +275,7 @@ get_default_tracing(Uint *flagsp, Eterm *tracerp)
if (is_nil(default_tracer)) {
default_trace_flags &= ~TRACEE_FLAGS;
} else if (is_internal_pid(default_tracer)) {
- if (!erts_pid2proc(NULL, 0, default_tracer, 0)) {
+ if (!erts_proc_lookup(default_tracer)) {
reset_tracer:
default_trace_flags &= ~TRACEE_FLAGS;
default_tracer = NIL;
@@ -270,7 +295,7 @@ get_default_tracing(Uint *flagsp, Eterm *tracerp)
void
erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp)
{
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
if (flagsp) {
if (setflags)
default_trace_flags |= *flagsp;
@@ -280,48 +305,48 @@ erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp)
if (tracerp)
default_tracer = *tracerp;
get_default_tracing(flagsp, tracerp);
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
}
void
erts_get_default_tracing(Uint *flagsp, Eterm *tracerp)
{
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
get_default_tracing(flagsp, tracerp);
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
}
void
erts_set_system_monitor(Eterm monitor)
{
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
system_monitor = monitor;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
}
Eterm
erts_get_system_monitor(void)
{
Eterm monitor;
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
monitor = system_monitor;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
return monitor;
}
/* Performance monitoring */
void erts_set_system_profile(Eterm profile) {
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
system_profile = profile;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
}
Eterm
erts_get_system_profile(void) {
Eterm profile;
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rlock(&sys_trace_rwmtx);
profile = system_profile;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_runlock(&sys_trace_rwmtx);
return profile;
}
@@ -384,13 +409,9 @@ WRITE_SYS_MSG_TO_PORT(Eterm unused_to,
}
#ifndef ERTS_SMP
- if (!INVALID_TRACER_PORT(trace_port, trace_port->id)) {
+ if (!INVALID_TRACER_PORT(trace_port, trace_port->id))
#endif
erts_raw_port_command(trace_port, buffer, ptr-buffer);
-#ifndef ERTS_SMP
- erts_port_release(trace_port);
- }
-#endif
erts_free(ERTS_ALC_T_TMP, (void *) buffer);
}
@@ -465,13 +486,13 @@ send_to_port(Process *c_p, Eterm message,
trace_port = NULL;
#else
- if (is_not_internal_port(*tracer_pid))
- goto invalid_tracer_port;
- trace_port = &erts_port[internal_port_index(*tracer_pid)];
+ trace_port = erts_id2port_sflgs(*tracer_pid,
+ NULL,
+ 0,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
- if (INVALID_TRACER_PORT(trace_port, *tracer_pid)) {
- invalid_tracer_port:
+ if (!trace_port) {
*tracee_flags &= ~TRACEE_FLAGS;
*tracer_pid = NIL;
return;
@@ -491,6 +512,7 @@ send_to_port(Process *c_p, Eterm message,
SYS_MSG_TYPE_TRACE,
message);
#ifndef ERTS_SMP
+ erts_port_release(trace_port);
return;
}
@@ -537,6 +559,9 @@ send_to_port(Process *c_p, Eterm message,
*/
do_send_schedfix_to_port(trace_port, c_p->id, ts);
}
+
+ erts_port_release(trace_port);
+
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
#endif
@@ -566,23 +591,28 @@ profile_send(Eterm from, Eterm message) {
Port *profiler_port = NULL;
/* not smp */
-
-
- profiler_port = &erts_port[internal_port_index(profiler)];
-
- do_send_to_port(profiler,
- profiler_port,
- NIL, /* or current process->id */
- SYS_MSG_TYPE_SYSPROF,
- message);
+
+ profiler_port = erts_id2port_sflgs(profiler,
+ NULL,
+ 0,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
+ if (profiler_port) {
+ do_send_to_port(profiler,
+ profiler_port,
+ NIL, /* or current process->id */
+ SYS_MSG_TYPE_SYSPROF,
+ message);
+ erts_port_release(profiler_port);
+ }
} else {
ASSERT(is_internal_pid(profiler)
&& internal_pid_index(profiler) < erts_max_processes);
- profile_p = process_tab[internal_pid_index(profiler)];
+ profile_p = erts_proc_lookup(profiler);
- if (INVALID_PID(profile_p, profiler)) return;
+ if (!profile_p)
+ return;
sz = size_object(message);
hp = erts_alloc_message_heap(sz, &bp, &off_heap, profile_p, 0);
@@ -626,13 +656,11 @@ seq_trace_send_to_port(Process *c_p,
trace_port = NULL;
#else
- if (is_not_internal_port(seq_tracer))
- goto invalid_tracer_port;
-
- trace_port = &erts_port[internal_port_index(seq_tracer)];
-
- if (INVALID_TRACER_PORT(trace_port, seq_tracer)) {
- invalid_tracer_port:
+ trace_port = erts_id2port_sflgs(seq_tracer,
+ NULL,
+ 0,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
+ if (!trace_port) {
system_seq_tracer = am_false;
#ifndef ERTS_SMP
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
@@ -650,6 +678,7 @@ seq_trace_send_to_port(Process *c_p,
message);
#ifndef ERTS_SMP
+ erts_port_release(trace_port);
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
return;
}
@@ -691,6 +720,9 @@ seq_trace_send_to_port(Process *c_p,
*/
do_send_schedfix_to_port(trace_port, c_p->id, ts);
}
+
+ erts_port_release(trace_port);
+
UnUseTmpHeapNoproc(LOCAL_HEAP_SIZE);
#undef LOCAL_HEAP_SIZE
#endif
@@ -789,13 +821,8 @@ trace_sched_aux(Process *p, Eterm what, int never_fake_sched)
ERTS_GET_TRACER_REF(tracer_ref, p->tracer_proc, p->trace_flags);
}
- if (ERTS_PROC_IS_EXITING(p)
-#ifndef ERTS_SMP
- || p->status == P_FREE
-#endif
- ) {
+ if (ERTS_PROC_IS_EXITING(p))
curr_func = 0;
- }
else {
if (!p->current)
p->current = find_function_from_pc(p->i);
@@ -874,7 +901,7 @@ trace_send(Process *p, Eterm to, Eterm msg)
operation = am_send;
if (is_internal_pid(to)) {
- if (!erts_pid2proc(p, ERTS_PROC_LOCK_MAIN, to, 0))
+ if (!erts_proc_lookup(to))
goto send_to_non_existing_process;
}
else if(is_external_pid(to)
@@ -1116,8 +1143,8 @@ seq_trace_output_generic(Eterm token, Eterm msg, Uint type,
#ifndef ERTS_SMP
- tracer = process_tab[internal_pid_index(seq_tracer)];
- if (INVALID_PID(tracer, tracer->id)) {
+ tracer = erts_proc_lookup(seq_tracer);
+ if (!tracer) {
system_seq_tracer = am_false;
return; /* no need to send anything */
}
@@ -2107,187 +2134,6 @@ void save_calls(Process *p, Export *e)
}
}
-/*
- * Entry point called by the trace wrap functions in erl_bif_wrap.c
- *
- * The trace wrap functions are themselves called through the export
- * entries instead of the original BIF functions.
- */
-Eterm
-erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I)
-{
- Eterm result;
- int meta = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_META);
-
- ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
-
- if (!ARE_TRACE_FLAGS_ON(p, F_TRACE_CALLS) && (! meta)) {
- /* Warning! This is an Optimization.
- *
- * If neither meta trace is active nor process trace flags then
- * no tracing will occur. Doing the whole else branch will
- * also do nothing, only slower.
- */
- Eterm (*func)(Process*, Eterm*, BeamInstr*) = bif_table[bif_index].f;
- result = func(p, args, I);
- } else {
- Eterm (*func)(Process*, Eterm*, BeamInstr*);
- Export* ep = bif_export[bif_index];
- Uint32 flags = 0, flags_meta = 0;
- int global = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_GLOBAL);
- int local = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_LOCAL);
- int time = !!(erts_bif_trace_flags[bif_index] & BIF_TRACE_AS_CALL_TIME);
- Eterm meta_tracer_pid = NIL;
- int applying = (I == &(ep->code[3])); /* Yup, the apply code for a bif
- * is actually in the
- * export entry */
- BeamInstr *cp = p->cp;
-
- /*
- * Make continuation pointer OK, it is not during direct BIF calls,
- * but it is correct during apply of bif.
- */
- if (!applying) {
- p->cp = I;
- }
- if (global || local) {
- flags = erts_call_trace(p, ep->code, ep->match_prog_set, args,
- local, &p->tracer_proc);
- }
- if (meta) {
- flags_meta = erts_bif_mtrace(p, ep->code+3, args, local,
- &meta_tracer_pid);
- }
- if (time) {
- BpDataTime *bdt = NULL;
- BeamInstr *pc = (BeamInstr *)ep->code+3;
-
- bdt = (BpDataTime *) erts_get_time_break(p, pc);
- ASSERT(bdt);
-
- if (!bdt->pause) {
- erts_trace_time_break(p, pc, bdt, ERTS_BP_CALL_TIME_CALL);
- }
- }
- /* Restore original continuation pointer (if changed). */
- p->cp = cp;
-
- func = bif_table[bif_index].f;
-
- result = func(p, args, I);
-
- if (applying && (flags & MATCH_SET_RETURN_TO_TRACE)) {
- BeamInstr i_return_trace = beam_return_trace[0];
- BeamInstr i_return_to_trace = beam_return_to_trace[0];
- BeamInstr i_return_time_trace = beam_return_time_trace[0];
- Eterm *cpp;
- /* Maybe advance cp to skip trace stack frames */
- for (cpp = p->stop; ; cp = cp_val(*cpp++)) {
- if (*cp == i_return_trace) {
- /* Skip stack frame variables */
- while (is_not_CP(*cpp)) cpp++;
- cpp += 2; /* Skip return_trace parameters */
- } else if (*cp == i_return_time_trace) {
- /* Skip stack frame variables */
- while (is_not_CP(*cpp)) cpp++;
- cpp += 1; /* Skip return_time_trace parameters */
- } else if (*cp == i_return_to_trace) {
- /* A return_to trace message is going to be generated
- * by normal means, so we do not have to.
- */
- cp = NULL;
- break;
- } else break;
- }
- }
-
- /* Try to get these in the order
- * they usually appear in normal code... */
- if (is_non_value(result)) {
- Uint reason = p->freason;
- if (reason != TRAP) {
- Eterm class;
- Eterm value = p->fvalue;
- DeclareTmpHeapNoproc(nocatch,3);
- UseTmpHeapNoproc(3);
- /* Expand error value like in handle_error() */
- if (reason & EXF_ARGLIST) {
- Eterm *tp;
- ASSERT(is_tuple(value));
- tp = tuple_val(value);
- value = tp[1];
- }
- if ((reason & EXF_THROWN) && (p->catches <= 0)) {
- value = TUPLE2(nocatch, am_nocatch, value);
- reason = EXC_ERROR;
- }
- /* Note: expand_error_value() could theoretically
- * allocate on the heap, but not for any error
- * returned by a BIF, and it would do no harm,
- * just be annoying.
- */
- value = expand_error_value(p, reason, value);
- class = exception_tag[GET_EXC_CLASS(reason)];
-
- if (flags_meta & MATCH_SET_EXCEPTION_TRACE) {
- erts_trace_exception(p, ep->code, class, value,
- &meta_tracer_pid);
- }
- if (flags & MATCH_SET_EXCEPTION_TRACE) {
- erts_trace_exception(p, ep->code, class, value,
- &p->tracer_proc);
- }
- if ((flags & MATCH_SET_RETURN_TO_TRACE) && p->catches > 0) {
- /* can only happen if(local)*/
- Eterm *ptr = p->stop;
- ASSERT(is_CP(*ptr));
- ASSERT(ptr <= STACK_START(p));
- /* Search the nearest stack frame for a catch */
- while (++ptr < STACK_START(p)) {
- if (is_CP(*ptr)) break;
- if (is_catch(*ptr)) {
- if (applying) {
- /* Apply of BIF, cp is in calling function */
- if (cp) erts_trace_return_to(p, cp);
- } else {
- /* Direct bif call, I points into
- * calling function */
- erts_trace_return_to(p, I);
- }
- }
- }
- }
- UnUseTmpHeapNoproc(3);
- if ((flags_meta|flags) & MATCH_SET_EXCEPTION_TRACE) {
- erts_smp_proc_lock(p, ERTS_PROC_LOCKS_ALL_MINOR);
- p->trace_flags |= F_EXCEPTION_TRACE;
- erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_ALL_MINOR);
- }
- }
- } else {
- if (flags_meta & MATCH_SET_RX_TRACE) {
- erts_trace_return(p, ep->code, result, &meta_tracer_pid);
- }
- /* MATCH_SET_RETURN_TO_TRACE cannot occur if(meta) */
- if (flags & MATCH_SET_RX_TRACE) {
- erts_trace_return(p, ep->code, result, &p->tracer_proc);
- }
- if (flags & MATCH_SET_RETURN_TO_TRACE) {
- /* can only happen if(local)*/
- if (applying) {
- /* Apply of BIF, cp is in calling function */
- if (cp) erts_trace_return_to(p, cp);
- } else {
- /* Direct bif call, I points into calling function */
- erts_trace_return_to(p, I);
- }
- }
- }
- }
- ERTS_SMP_CHK_HAVE_ONLY_MAIN_PROC_LOCK(p);
- return result;
-}
-
/* Sends trace message:
* {trace_ts, Pid, What, Msg, Timestamp}
* or {trace, Pid, What, Msg}
@@ -2451,10 +2297,9 @@ monitor_long_gc(Process *p, Uint time) {
#ifndef ERTS_SMP
ASSERT(is_internal_pid(system_monitor)
&& internal_pid_index(system_monitor) < erts_max_processes);
- monitor_p = process_tab[internal_pid_index(system_monitor)];
- if (INVALID_PID(monitor_p, system_monitor) || p == monitor_p) {
+ monitor_p = erts_proc_lookup(system_monitor);
+ if (!monitor_p || p == monitor_p)
return;
- }
#endif
hsz = 0;
@@ -2527,8 +2372,8 @@ monitor_large_heap(Process *p) {
#ifndef ERTS_SMP
ASSERT(is_internal_pid(system_monitor)
&& internal_pid_index(system_monitor) < erts_max_processes);
- monitor_p = process_tab[internal_pid_index(system_monitor)];
- if (INVALID_PID(monitor_p, system_monitor) || p == monitor_p) {
+ monitor_p = erts_proc_lookup(system_monitor);
+ if (monitor_p || p == monitor_p) {
return;
}
#endif
@@ -2582,10 +2427,9 @@ monitor_generic(Process *p, Eterm type, Eterm spec) {
#ifndef ERTS_SMP
ASSERT(is_internal_pid(system_monitor)
&& internal_pid_index(system_monitor) < erts_max_processes);
- monitor_p = process_tab[internal_pid_index(system_monitor)];
- if (INVALID_PID(monitor_p, system_monitor) || p == monitor_p) {
+ monitor_p = erts_proc_lookup(system_monitor);
+ if (!monitor_p || p == monitor_p)
return;
- }
#endif
hp = ERTS_ALLOC_SYSMSG_HEAP(5, &bp, &off_heap, monitor_p);
@@ -3149,10 +2993,10 @@ sys_msg_disp_failure(ErtsSysMsgQ *smqp, Eterm receiver)
break;
case SYS_MSG_TYPE_SEQTRACE:
/* Reset seq_tracer if it hasn't changed */
- erts_smp_mtx_lock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwlock(&sys_trace_rwmtx);
if (system_seq_tracer == receiver)
system_seq_tracer = am_false;
- erts_smp_mtx_unlock(&sys_trace_mtx);
+ erts_smp_rwmtx_rwunlock(&sys_trace_rwmtx);
break;
case SYS_MSG_TYPE_SYSMON:
if (receiver == NIL
@@ -3407,12 +3251,12 @@ sys_msg_dispatcher_func(void *unused)
goto queue_proc_msg;
}
else if (is_internal_port(receiver)) {
- port = erts_id2port(receiver, NULL, 0);
- if (INVALID_TRACER_PORT(port, receiver)) {
- if (port)
- erts_port_release(port);
+ port = erts_id2port_sflgs(receiver,
+ NULL,
+ 0,
+ ERTS_PORT_SFLGS_INVALID_TRACER_LOOKUP);
+ if (!port)
goto failure;
- }
else {
write_sys_msg_to_port(receiver,
port,
diff --git a/erts/emulator/beam/erl_unicode.c b/erts/emulator/beam/erl_unicode.c
index 6d5eae73b0..049226ab7d 100644
--- a/erts/emulator/beam/erl_unicode.c
+++ b/erts/emulator/beam/erl_unicode.c
@@ -77,66 +77,25 @@ void erts_init_unicode(void)
{
max_loop_limit = CONTEXT_REDS * LOOP_FACTOR;
/* Non visual BIFs to trap to. */
- memset(&characters_to_utf8_trap_exp, 0, sizeof(Export));
- characters_to_utf8_trap_exp.address =
- &characters_to_utf8_trap_exp.code[3];
- characters_to_utf8_trap_exp.code[0] = am_erlang;
- characters_to_utf8_trap_exp.code[1] =
- am_atom_put("characters_to_utf8_trap",23);
- characters_to_utf8_trap_exp.code[2] = 3;
- characters_to_utf8_trap_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_utf8_trap_exp.code[4] =
- (BeamInstr) &characters_to_utf8_trap;
-
- memset(&characters_to_list_trap_1_exp, 0, sizeof(Export));
- characters_to_list_trap_1_exp.address =
- &characters_to_list_trap_1_exp.code[3];
- characters_to_list_trap_1_exp.code[0] = am_erlang;
- characters_to_list_trap_1_exp.code[1] =
- am_atom_put("characters_to_list_trap_1",25);
- characters_to_list_trap_1_exp.code[2] = 3;
- characters_to_list_trap_1_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_list_trap_1_exp.code[4] =
- (BeamInstr) &characters_to_list_trap_1;
-
- memset(&characters_to_list_trap_2_exp, 0, sizeof(Export));
- characters_to_list_trap_2_exp.address =
- &characters_to_list_trap_2_exp.code[3];
- characters_to_list_trap_2_exp.code[0] = am_erlang;
- characters_to_list_trap_2_exp.code[1] =
- am_atom_put("characters_to_list_trap_2",25);
- characters_to_list_trap_2_exp.code[2] = 3;
- characters_to_list_trap_2_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_list_trap_2_exp.code[4] =
- (BeamInstr) &characters_to_list_trap_2;
-
-
- memset(&characters_to_list_trap_3_exp, 0, sizeof(Export));
- characters_to_list_trap_3_exp.address =
- &characters_to_list_trap_3_exp.code[3];
- characters_to_list_trap_3_exp.code[0] = am_erlang;
- characters_to_list_trap_3_exp.code[1] =
- am_atom_put("characters_to_list_trap_3",25);
- characters_to_list_trap_3_exp.code[2] = 3;
- characters_to_list_trap_3_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_list_trap_3_exp.code[4] =
- (BeamInstr) &characters_to_list_trap_3;
-
- memset(&characters_to_list_trap_4_exp, 0, sizeof(Export));
- characters_to_list_trap_4_exp.address =
- &characters_to_list_trap_4_exp.code[3];
- characters_to_list_trap_4_exp.code[0] = am_erlang;
- characters_to_list_trap_4_exp.code[1] =
- am_atom_put("characters_to_list_trap_4",25);
- characters_to_list_trap_4_exp.code[2] = 1;
- characters_to_list_trap_4_exp.code[3] =
- (BeamInstr) em_apply_bif;
- characters_to_list_trap_4_exp.code[4] =
- (BeamInstr) &characters_to_list_trap_4;
+ erts_init_trap_export(&characters_to_utf8_trap_exp,
+ am_erlang, am_atom_put("characters_to_utf8_trap",23), 3,
+ &characters_to_utf8_trap);
+
+ erts_init_trap_export(&characters_to_list_trap_1_exp,
+ am_erlang, am_atom_put("characters_to_list_trap_1",25), 3,
+ &characters_to_list_trap_1);
+
+ erts_init_trap_export(&characters_to_list_trap_2_exp,
+ am_erlang, am_atom_put("characters_to_list_trap_2",25), 3,
+ &characters_to_list_trap_2);
+
+ erts_init_trap_export(&characters_to_list_trap_3_exp,
+ am_erlang, am_atom_put("characters_to_list_trap_3",25), 3,
+ &characters_to_list_trap_3);
+
+ erts_init_trap_export(&characters_to_list_trap_4_exp,
+ am_erlang, am_atom_put("characters_to_list_trap_4",25), 1,
+ &characters_to_list_trap_4);
c_to_b_int_trap_exportp = erts_export_put(am_unicode,am_characters_to_binary_int,2);
c_to_l_int_trap_exportp = erts_export_put(am_unicode,am_characters_to_list_int,2);
diff --git a/erts/emulator/beam/export.c b/erts/emulator/beam/export.c
index fb0ee99119..6b5121f917 100644
--- a/erts/emulator/beam/export.c
+++ b/erts/emulator/beam/export.c
@@ -32,98 +32,162 @@
#define EXPORT_HASH(m,f,a) ((m)*(f)+(a))
-static IndexTable export_table; /* Not locked. */
-static Hash secondary_export_table; /* Locked. */
+#ifdef DEBUG
+# define IF_DEBUG(x) x
+#else
+# define IF_DEBUG(x)
+#endif
-#include "erl_smp.h"
+static IndexTable export_tables[ERTS_NUM_CODE_IX]; /* Active not locked */
-static erts_smp_rwmtx_t export_table_lock; /* Locks the secondary export table. */
+static erts_smp_atomic_t total_entries_bytes;
-#define export_read_lock() erts_smp_rwmtx_rlock(&export_table_lock)
-#define export_read_unlock() erts_smp_rwmtx_runlock(&export_table_lock)
-#define export_write_lock() erts_smp_rwmtx_rwlock(&export_table_lock)
-#define export_write_unlock() erts_smp_rwmtx_rwunlock(&export_table_lock)
+#include "erl_smp.h"
+
+/* This lock protects the staging export table from concurrent access
+ * AND it protects the staging table from becoming active.
+ */
+erts_smp_mtx_t export_staging_lock;
extern BeamInstr* em_call_error_handler;
extern BeamInstr* em_call_traced_function;
+struct export_entry
+{
+ IndexSlot slot; /* MUST BE LOCATED AT TOP OF STRUCT!!! */
+ Export* ep;
+};
+
+/* Helper struct that brings things together in one allocation
+*/
+struct export_blob
+{
+ Export exp;
+ struct export_entry entryv[ERTS_NUM_CODE_IX];
+ /* Note that entryv is not indexed by "code_ix".
+ */
+};
+
+/* Helper struct only used as template
+*/
+struct export_templ
+{
+ struct export_entry entry;
+ Export exp;
+};
+
+static struct export_blob* entry_to_blob(struct export_entry* ee)
+{
+ return (struct export_blob*)
+ ((char*)ee->ep - offsetof(struct export_blob,exp));
+}
+
void
export_info(int to, void *to_arg)
{
#ifdef ERTS_SMP
int lock = !ERTS_IS_CRASH_DUMPING;
if (lock)
- export_read_lock();
+ export_staging_lock();
#endif
- index_info(to, to_arg, &export_table);
- hash_info(to, to_arg, &secondary_export_table);
+ index_info(to, to_arg, &export_tables[erts_active_code_ix()]);
+ hash_info(to, to_arg, &export_tables[erts_staging_code_ix()].htable);
#ifdef ERTS_SMP
if (lock)
- export_read_unlock();
+ export_staging_unlock();
#endif
}
static HashValue
-export_hash(Export* x)
+export_hash(struct export_entry* ee)
{
+ Export* x = ee->ep;
return EXPORT_HASH(x->code[0], x->code[1], x->code[2]);
}
static int
-export_cmp(Export* tmpl, Export* obj)
+export_cmp(struct export_entry* tmpl_e, struct export_entry* obj_e)
{
+ Export* tmpl = tmpl_e->ep;
+ Export* obj = obj_e->ep;
return !(tmpl->code[0] == obj->code[0] &&
tmpl->code[1] == obj->code[1] &&
tmpl->code[2] == obj->code[2]);
}
-static Export*
-export_alloc(Export* tmpl)
+static struct export_entry*
+export_alloc(struct export_entry* tmpl_e)
{
- Export* obj = (Export*) erts_alloc(ERTS_ALC_T_EXPORT, sizeof(Export));
-
- obj->fake_op_func_info_for_hipe[0] = 0;
- obj->fake_op_func_info_for_hipe[1] = 0;
- obj->code[0] = tmpl->code[0];
- obj->code[1] = tmpl->code[1];
- obj->code[2] = tmpl->code[2];
- obj->slot.index = -1;
- obj->address = obj->code+3;
- obj->code[3] = (BeamInstr) em_call_error_handler;
- obj->code[4] = 0;
- obj->match_prog_set = NULL;
- return obj;
+ struct export_blob* blob;
+ unsigned ix;
+
+ if (tmpl_e->slot.index == -1) { /* Template, allocate blob */
+ Export* tmpl = tmpl_e->ep;
+ Export* obj;
+
+ blob = (struct export_blob*) erts_alloc(ERTS_ALC_T_EXPORT, sizeof(*blob));
+ erts_smp_atomic_add_nob(&total_entries_bytes, sizeof(*blob));
+ obj = &blob->exp;
+ obj->fake_op_func_info_for_hipe[0] = 0;
+ obj->fake_op_func_info_for_hipe[1] = 0;
+ obj->code[0] = tmpl->code[0];
+ obj->code[1] = tmpl->code[1];
+ obj->code[2] = tmpl->code[2];
+ obj->code[3] = (BeamInstr) em_call_error_handler;
+ obj->code[4] = 0;
+
+ for (ix=0; ix<ERTS_NUM_CODE_IX; ix++) {
+ obj->addressv[ix] = obj->code+3;
+
+ blob->entryv[ix].slot.index = -1;
+ blob->entryv[ix].ep = &blob->exp;
+ }
+ ix = 0;
+ }
+ else { /* Existing entry in another table, use free entry in blob */
+ blob = entry_to_blob(tmpl_e);
+ for (ix = 0; blob->entryv[ix].slot.index >= 0; ix++) {
+ ASSERT(ix < ERTS_NUM_CODE_IX);
+ }
+ }
+ return &blob->entryv[ix];
}
-
-static void
-export_free(Export* obj)
+static void
+export_free(struct export_entry* obj)
{
- erts_free(ERTS_ALC_T_EXPORT, (void*) obj);
+ struct export_blob* blob = entry_to_blob(obj);
+ int i;
+ obj->slot.index = -1;
+ for (i=0; i < ERTS_NUM_CODE_IX; i++) {
+ if (blob->entryv[i].slot.index >= 0) {
+ return;
+ }
+ }
+ erts_free(ERTS_ALC_T_EXPORT, blob);
+ erts_smp_atomic_add_nob(&total_entries_bytes, -sizeof(*blob));
}
-
void
init_export_table(void)
{
HashFunctions f;
- erts_smp_rwmtx_opt_t rwmtx_opt = ERTS_SMP_RWMTX_OPT_DEFAULT_INITER;
- rwmtx_opt.type = ERTS_SMP_RWMTX_TYPE_FREQUENT_READ;
- rwmtx_opt.lived = ERTS_SMP_RWMTX_LONG_LIVED;
+ int i;
- erts_smp_rwmtx_init_opt(&export_table_lock, &rwmtx_opt, "export_tab");
+ erts_smp_mtx_init(&export_staging_lock, "export_tab");
+ erts_smp_atomic_init_nob(&total_entries_bytes, 0);
f.hash = (H_FUN) export_hash;
f.cmp = (HCMP_FUN) export_cmp;
f.alloc = (HALLOC_FUN) export_alloc;
f.free = (HFREE_FUN) export_free;
- erts_index_init(ERTS_ALC_T_EXPORT_TABLE, &export_table, "export_list",
- EXPORT_INITIAL_SIZE, EXPORT_LIMIT, f);
- hash_init(ERTS_ALC_T_EXPORT_TABLE, &secondary_export_table,
- "secondary_export_table", 50, f);
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ erts_index_init(ERTS_ALC_T_EXPORT_TABLE, &export_tables[i], "export_list",
+ EXPORT_INITIAL_SIZE, EXPORT_LIMIT, f);
+ }
}
/*
@@ -138,29 +202,42 @@ init_export_table(void)
* called through such an export entry.
* 3) This function is suitable for the implementation of erlang:apply/3.
*/
+extern Export* /* inline-helper */
+erts_find_export_entry(Eterm m, Eterm f, unsigned int a,ErtsCodeIndex code_ix);
Export*
-erts_find_export_entry(Eterm m, Eterm f, unsigned int a)
+erts_find_export_entry(Eterm m, Eterm f, unsigned int a, ErtsCodeIndex code_ix)
{
HashValue hval = EXPORT_HASH((BeamInstr) m, (BeamInstr) f, (BeamInstr) a);
int ix;
HashBucket* b;
- ix = hval % export_table.htable.size;
- b = export_table.htable.bucket[ix];
+ ix = hval % export_tables[code_ix].htable.size;
+ b = export_tables[code_ix].htable.bucket[ix];
/*
* Note: We have inlined the code from hash.c for speed.
*/
while (b != (HashBucket*) 0) {
- Export* ep = (Export *) b;
+ Export* ep = ((struct export_entry*) b)->ep;
if (ep->code[0] == m && ep->code[1] == f && ep->code[2] == a) {
- break;
+ return ep;
}
b = b->next;
}
- return (Export*)b;
+ return NULL;
+}
+
+static struct export_entry* init_template(struct export_templ* templ,
+ Eterm m, Eterm f, unsigned a)
+{
+ templ->entry.ep = &templ->exp;
+ templ->entry.slot.index = -1;
+ templ->exp.code[0] = m;
+ templ->exp.code[1] = f;
+ templ->exp.code[2] = a;
+ return &templ->entry;
}
@@ -176,47 +253,42 @@ erts_find_export_entry(Eterm m, Eterm f, unsigned int a)
*/
Export*
-erts_find_function(Eterm m, Eterm f, unsigned int a)
+erts_find_function(Eterm m, Eterm f, unsigned int a, ErtsCodeIndex code_ix)
{
- Export e;
- Export* ep;
-
- e.code[0] = m;
- e.code[1] = f;
- e.code[2] = a;
-
- ep = hash_get(&export_table.htable, (void*) &e);
- if (ep != NULL && ep->address == ep->code+3 &&
- ep->code[3] != (BeamInstr) em_call_traced_function) {
- ep = NULL;
+ struct export_templ templ;
+ struct export_entry* ee;
+
+ ee = hash_get(&export_tables[code_ix].htable, init_template(&templ, m, f, a));
+ if (ee == NULL ||
+ (ee->ep->addressv[code_ix] == ee->ep->code+3 &&
+ ee->ep->code[3] != (BeamInstr) BeamOp(op_i_generic_breakpoint))) {
+ return NULL;
}
- return ep;
+ return ee->ep;
}
/*
* Returns a pointer to an existing export entry for a MFA,
* or creates a new one and returns the pointer.
*
- * This function provides unlocked write access to the main export
- * table. It should only be used during start up or when
- * all other threads are blocked.
+ * This function acts on the staging export table. It should only be used
+ * to load new code.
*/
Export*
erts_export_put(Eterm mod, Eterm func, unsigned int arity)
{
- Export e;
- int ix;
+ ErtsCodeIndex code_ix = erts_staging_code_ix();
+ struct export_templ templ;
+ struct export_entry* ee;
- ERTS_SMP_LC_ASSERT(erts_initialized == 0
- || erts_smp_thr_progress_is_blocking());
ASSERT(is_atom(mod));
ASSERT(is_atom(func));
- e.code[0] = mod;
- e.code[1] = func;
- e.code[2] = arity;
- ix = index_put(&export_table, (void*) &e);
- return (Export*) erts_index_lookup(&export_table, ix);
+ export_staging_lock();
+ ee = (struct export_entry*) index_put_entry(&export_tables[code_ix],
+ init_template(&templ, mod, func, arity));
+ export_staging_unlock();
+ return ee->ep;
}
/*
@@ -224,77 +296,117 @@ erts_export_put(Eterm mod, Eterm func, unsigned int arity)
* export entry (making a call through it will cause the error_handler to
* be called).
*
- * Stub export entries will be placed in the secondary export table.
- * erts_export_consolidate() will move all stub export entries into the
- * main export table (will be done the next time code is loaded).
+ * Stub export entries will be placed in the loader export table.
*/
Export*
erts_export_get_or_make_stub(Eterm mod, Eterm func, unsigned int arity)
{
- Export e;
+ ErtsCodeIndex code_ix;
Export* ep;
+ IF_DEBUG(int retrying = 0;)
ASSERT(is_atom(mod));
ASSERT(is_atom(func));
-
- e.code[0] = mod;
- e.code[1] = func;
- e.code[2] = arity;
- ep = erts_find_export_entry(mod, func, arity);
- if (ep == 0) {
- /*
- * The code is not loaded (yet). Put the export in the secondary
- * export table, to avoid having to lock the main export table.
- */
- export_write_lock();
- ep = (Export *) hash_put(&secondary_export_table, (void*) &e);
- export_write_unlock();
- }
+
+ do {
+ code_ix = erts_active_code_ix();
+ ep = erts_find_export_entry(mod, func, arity, code_ix);
+ if (ep == 0) {
+ /*
+ * The code is not loaded (yet). Put the export in the staging
+ * export table, to avoid having to lock the active export table.
+ */
+ export_staging_lock();
+ if (erts_active_code_ix() == code_ix) {
+ struct export_templ templ;
+ struct export_entry* entry;
+
+ IndexTable* tab = &export_tables[erts_staging_code_ix()];
+ init_template(&templ, mod, func, arity);
+ entry = (struct export_entry *) index_put_entry(tab, &templ.entry);
+ ep = entry->ep;
+ ASSERT(ep);
+ }
+ else { /* race */
+ ASSERT(!retrying);
+ IF_DEBUG(retrying = 1);
+ }
+ export_staging_unlock();
+ }
+ } while (!ep);
return ep;
}
-/*
- * To be called before loading code (with other threads blocked).
- * This function will move all export entries from the secondary
- * export table into the primary.
- */
-void
-erts_export_consolidate(void)
+Export *export_list(int i, ErtsCodeIndex code_ix)
{
-#ifdef DEBUG
- HashInfo hi;
-#endif
-
- ERTS_SMP_LC_ASSERT(erts_initialized == 0
- || erts_smp_thr_progress_is_blocking());
-
- export_write_lock();
- erts_index_merge(&secondary_export_table, &export_table);
- erts_hash_merge(&secondary_export_table, &export_table.htable);
- export_write_unlock();
-#ifdef DEBUG
- hash_get_info(&hi, &export_table.htable);
- ASSERT(export_table.entries == hi.objs);
-#endif
+ return ((struct export_entry*) erts_index_lookup(&export_tables[code_ix], i))->ep;
}
-Export *export_list(int i)
+int export_list_size(ErtsCodeIndex code_ix)
{
- return (Export*) erts_index_lookup(&export_table, i);
+ return export_tables[code_ix].entries;
}
-int export_list_size(void)
+int export_table_sz(void)
+{
+ int i, bytes = 0;
+
+ export_staging_lock();
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ bytes += index_table_sz(&export_tables[i]);
+ }
+ export_staging_unlock();
+ return bytes;
+}
+int export_entries_sz(void)
{
- return export_table.entries;
+ return erts_smp_atomic_read_nob(&total_entries_bytes);
}
+Export *export_get(Export *e)
+{
+ struct export_entry ee;
+ struct export_entry* entry;
-int export_table_sz(void)
+ ee.ep = e;
+ entry = (struct export_entry*)hash_get(&export_tables[erts_active_code_ix()].htable, &ee);
+ return entry ? entry->ep : NULL;
+}
+
+IF_DEBUG(static ErtsCodeIndex debug_start_load_ix = 0;)
+
+
+void export_start_staging(void)
{
- return index_table_sz(&export_table);
+ ErtsCodeIndex dst_ix = erts_staging_code_ix();
+ ErtsCodeIndex src_ix = erts_active_code_ix();
+ IndexTable* dst = &export_tables[dst_ix];
+ IndexTable* src = &export_tables[src_ix];
+ struct export_entry* src_entry;
+ struct export_entry* dst_entry;
+ int i;
+
+ ASSERT(dst_ix != src_ix);
+ ASSERT(debug_start_load_ix == -1);
+
+ export_staging_lock();
+ /*
+ * Insert all entries in src into dst table
+ */
+ for (i = 0; i < src->entries; i++) {
+ src_entry = (struct export_entry*) erts_index_lookup(src, i);
+ src_entry->ep->addressv[dst_ix] = src_entry->ep->addressv[src_ix];
+ dst_entry = (struct export_entry*) index_put_entry(dst, src_entry);
+ ASSERT(entry_to_blob(src_entry) == entry_to_blob(dst_entry));
+ }
+ export_staging_unlock();
+
+ IF_DEBUG(debug_start_load_ix = dst_ix);
}
-Export *export_get(Export *e)
+void export_end_staging(int commit)
{
- return hash_get(&export_table.htable, e);
+ ASSERT(debug_start_load_ix == erts_staging_code_ix());
+ IF_DEBUG(debug_start_load_ix = -1);
}
+
diff --git a/erts/emulator/beam/export.h b/erts/emulator/beam/export.h
index c604fdf7c3..ee06e69aff 100644
--- a/erts/emulator/beam/export.h
+++ b/erts/emulator/beam/export.h
@@ -28,14 +28,15 @@
#include "index.h"
#endif
+#include "code_ix.h"
+
/*
** Export entry
*/
+
typedef struct export
{
- IndexSlot slot; /* MUST BE LOCATED AT TOP OF STRUCT!!! */
- void* address; /* Pointer to code for function. */
- struct binary* match_prog_set; /* Match program for tracing. */
+ void* addressv[ERTS_NUM_CODE_IX]; /* Pointer to code for function. */
BeamInstr fake_op_func_info_for_hipe[2]; /* MUST be just before code[] */
/*
@@ -44,12 +45,12 @@ typedef struct export
* code[2]: Arity (untagged integer).
* code[3]: This entry is 0 unless the 'address' field points to it.
* Threaded code instruction to load function
- * (em_call_error_handler), execute BIF (em_apply_bif,
- * em_apply_apply), or call a traced function
- * (em_call_traced_function).
- * code[4]: Function pointer to BIF function (for BIFs only)
+ * (em_call_error_handler), execute BIF (em_apply_bif),
+ * or a breakpoint instruction (op_i_generic_breakpoint).
+ * code[4]: Function pointer to BIF function (for BIFs only),
* or pointer to threaded code if the module has an
- * on_load function that has not been run yet.
+ * on_load function that has not been run yet, or pointer
+ * to code for function code[3] is a breakpont instruction.
* Otherwise: 0.
*/
BeamInstr code[5];
@@ -59,21 +60,38 @@ typedef struct export
void init_export_table(void);
void export_info(int, void *);
-Export* erts_find_export_entry(Eterm m, Eterm f, unsigned int a);
+ERTS_GLB_INLINE Export* erts_active_export_entry(Eterm m, Eterm f, unsigned a);
Export* erts_export_put(Eterm mod, Eterm func, unsigned int arity);
-
Export* erts_export_get_or_make_stub(Eterm, Eterm, unsigned);
-void erts_export_consolidate(void);
-Export *export_list(int);
-int export_list_size(void);
+Export *export_list(int,ErtsCodeIndex);
+int export_list_size(ErtsCodeIndex);
int export_table_sz(void);
+int export_entries_sz(void);
Export *export_get(Export*);
+void export_start_staging(void);
+void export_end_staging(int commit);
+
+extern erts_smp_mtx_t export_staging_lock;
+#define export_staging_lock() erts_smp_mtx_lock(&export_staging_lock)
+#define export_staging_unlock() erts_smp_mtx_unlock(&export_staging_lock)
#include "beam_load.h" /* For em_* extern declarations */
#define ExportIsBuiltIn(EntryPtr) \
-(((EntryPtr)->address == (EntryPtr)->code + 3) && \
+(((EntryPtr)->addressv[erts_active_code_ix()] == (EntryPtr)->code + 3) && \
((EntryPtr)->code[3] == (BeamInstr) em_apply_bif))
-#endif
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE Export*
+erts_active_export_entry(Eterm m, Eterm f, unsigned int a)
+{
+ extern Export* erts_find_export_entry(Eterm m, Eterm f, unsigned a, ErtsCodeIndex);
+ return erts_find_export_entry(m, f, a, erts_active_code_ix());
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+#endif /* __EXPORT_H__ */
+
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c
index 4348578694..feb1740649 100644
--- a/erts/emulator/beam/external.c
+++ b/erts/emulator/beam/external.c
@@ -2562,7 +2562,7 @@ dec_term_atom_common:
goto error;
}
if (edep && (edep->flags & ERTS_DIST_EXT_BTT_SAFE)) {
- if (!erts_find_export_entry(mod, name, arity))
+ if (!erts_active_export_entry(mod, name, arity))
goto error;
}
*objp = make_export(hp);
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index 1b15c4ac3b..c9be20322d 100755
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -28,6 +28,7 @@
#include "hash.h"
#include "index.h"
#include "atom.h"
+#include "code_ix.h"
#include "export.h"
#include "module.h"
#include "register.h"
@@ -143,8 +144,8 @@ typedef struct ErtsXPortsList_ ErtsXPortsList;
struct port {
ErtsPortTaskSched sched;
ErtsPortTaskHandle timeout_task;
-#ifdef ERTS_SMP
erts_smp_atomic_t refc;
+#ifdef ERTS_SMP
erts_smp_mtx_t *lock;
ErtsXPortsList *xports;
erts_smp_atomic_t run_queue;
@@ -197,6 +198,8 @@ erts_port_runq(Port *prt)
#ifdef ERTS_SMP
ErtsRunQueue *rq1, *rq2;
rq1 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue);
+ if (!rq1)
+ return NULL;
while (1) {
erts_smp_runq_lock(rq1);
rq2 = (ErtsRunQueue *) erts_smp_atomic_read_nob(&prt->run_queue);
@@ -204,6 +207,8 @@ erts_port_runq(Port *prt)
return rq1;
erts_smp_runq_unlock(rq1);
rq1 = rq2;
+ if (!rq1)
+ return NULL;
}
#else
return ERTS_RUNQ_IX(0);
@@ -764,6 +769,8 @@ void erts_queue_monitor_message(Process *,
Eterm,
Eterm,
Eterm);
+void erts_init_trap_export(Export* ep, Eterm m, Eterm f, Uint a,
+ Eterm (*bif)(Process*,Eterm*));
void erts_init_bif(void);
Eterm erl_send(Process *p, Eterm to, Eterm msg);
@@ -786,24 +793,33 @@ typedef struct {
Eterm* fname_ptr; /* Pointer to fname table */
} FunctionInfo;
-struct LoaderState* erts_alloc_loader_state(void);
-Eterm erts_prepare_loading(struct LoaderState*, Process *c_p,
+Binary* erts_alloc_loader_state(void);
+Eterm erts_module_for_prepared_code(Binary* magic);
+Eterm erts_prepare_loading(Binary* loader_state, Process *c_p,
Eterm group_leader, Eterm* modp,
byte* code, Uint size);
-Eterm erts_finish_loading(struct LoaderState* stp, Process* c_p,
+Eterm erts_finish_loading(Binary* loader_state, Process* c_p,
ErtsProcLocks c_p_locks, Eterm* modp);
-Eterm erts_load_module(Process *c_p, ErtsProcLocks c_p_locks,
- Eterm group_leader, Eterm* mod, byte* code, Uint size);
+Eterm erts_preload_module(Process *c_p, ErtsProcLocks c_p_locks,
+ Eterm group_leader, Eterm* mod, byte* code, Uint size);
void init_load(void);
BeamInstr* find_function_from_pc(BeamInstr* pc);
Eterm* erts_build_mfa_item(FunctionInfo* fi, Eterm* hp,
Eterm args, Eterm* mfa_p);
-void erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info);
void erts_set_current_function(FunctionInfo* fi, BeamInstr* current);
Eterm erts_module_info_0(Process* p, Eterm module);
Eterm erts_module_info_1(Process* p, Eterm module, Eterm what);
Eterm erts_make_stub_module(Process* p, Eterm Mod, Eterm Beam, Eterm Info);
+/* beam_ranges.c */
+void erts_init_ranges(void);
+void erts_start_staging_ranges(void);
+void erts_end_staging_ranges(int commit);
+void erts_update_ranges(BeamInstr* code, Uint size);
+void erts_remove_from_ranges(BeamInstr* code);
+UWord erts_ranges_sz(void);
+void erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info);
+
/* break.c */
void init_break_handler(void);
void erts_set_ignore_break(void);
@@ -1024,28 +1040,29 @@ erts_smp_port_state_unlock(Port *prt)
ERTS_GLB_INLINE int
erts_smp_port_trylock(Port *prt)
{
-#ifdef ERTS_SMP
int res;
ASSERT(erts_smp_atomic_read_nob(&prt->refc) > 0);
erts_smp_atomic_inc_nob(&prt->refc);
+
+#ifdef ERTS_SMP
res = erts_smp_mtx_trylock(prt->lock);
if (res == EBUSY) {
erts_smp_atomic_dec_nob(&prt->refc);
}
+#else
+ res = 0;
+#endif
return res;
-#else /* !ERTS_SMP */
- return 0;
-#endif
}
ERTS_GLB_INLINE void
erts_smp_port_lock(Port *prt)
{
-#ifdef ERTS_SMP
ASSERT(erts_smp_atomic_read_nob(&prt->refc) > 0);
erts_smp_atomic_inc_nob(&prt->refc);
+#ifdef ERTS_SMP
erts_smp_mtx_lock(prt->lock);
#endif
}
@@ -1053,14 +1070,14 @@ erts_smp_port_lock(Port *prt)
ERTS_GLB_INLINE void
erts_smp_port_unlock(Port *prt)
{
-#ifdef ERTS_SMP
erts_aint_t refc;
+#ifdef ERTS_SMP
erts_smp_mtx_unlock(prt->lock);
+#endif
refc = erts_smp_atomic_dec_read_nob(&prt->refc);
ASSERT(refc >= 0);
if (refc == 0)
erts_port_cleanup(prt);
-#endif
}
#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
@@ -1123,12 +1140,12 @@ erts_id2port_sflgs(Eterm id, Process *c_p, ErtsProcLocks c_p_locks, Uint32 sflgs
erts_smp_port_state_unlock(prt);
prt = NULL;
}
-#ifdef ERTS_SMP
else {
erts_smp_atomic_inc_nob(&prt->refc);
erts_smp_port_state_unlock(prt);
- if (no_proc_locks)
+#ifdef ERTS_SMP
+ if (no_proc_locks)
erts_smp_mtx_lock(prt->lock);
else if (erts_smp_mtx_trylock(prt->lock) == EBUSY) {
/* Unlock process locks, and acquire locks in lock order... */
@@ -1144,21 +1161,17 @@ erts_id2port_sflgs(Eterm id, Process *c_p, ErtsProcLocks c_p_locks, Uint32 sflgs
erts_smp_port_unlock(prt); /* Also decrements refc... */
prt = NULL;
}
- }
#endif
+ }
+
return prt;
}
ERTS_GLB_INLINE void
erts_port_release(Port *prt)
{
-#ifdef ERTS_SMP
erts_smp_port_unlock(prt);
-#else
- if (prt->status & ERTS_PORT_SFLGS_DEAD)
- erts_port_cleanup(prt);
-#endif
}
ERTS_GLB_INLINE Port*
@@ -1275,6 +1288,122 @@ void erl_drv_thr_init(void);
/* utils.c */
+typedef struct {
+#ifdef DEBUG
+ int smp_api;
+#endif
+ union {
+ Uint64 not_atomic;
+#ifdef ARCH_64
+ erts_atomic_t atomic;
+#else
+ erts_dw_atomic_t atomic;
+#endif
+ } counter;
+} erts_interval_t;
+
+void erts_interval_init(erts_interval_t *);
+void erts_smp_interval_init(erts_interval_t *);
+Uint64 erts_step_interval_nob(erts_interval_t *);
+Uint64 erts_step_interval_relb(erts_interval_t *);
+Uint64 erts_smp_step_interval_nob(erts_interval_t *);
+Uint64 erts_smp_step_interval_relb(erts_interval_t *);
+Uint64 erts_ensure_later_interval_nob(erts_interval_t *, Uint64);
+Uint64 erts_ensure_later_interval_acqb(erts_interval_t *, Uint64);
+Uint64 erts_smp_ensure_later_interval_nob(erts_interval_t *, Uint64);
+Uint64 erts_smp_ensure_later_interval_acqb(erts_interval_t *, Uint64);
+#ifdef ARCH_32
+ERTS_GLB_INLINE Uint64 erts_interval_dw_aint_to_val__(erts_dw_aint_t *);
+#endif
+ERTS_GLB_INLINE Uint64 erts_current_interval_nob__(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_current_interval_acqb__(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_current_interval_nob(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_current_interval_acqb(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_smp_current_interval_nob(erts_interval_t *);
+ERTS_GLB_INLINE Uint64 erts_smp_current_interval_acqb(erts_interval_t *);
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+#ifdef ARCH_32
+
+ERTS_GLB_INLINE Uint64
+erts_interval_dw_aint_to_val__(erts_dw_aint_t *dw)
+{
+#ifdef ETHR_SU_DW_NAINT_T__
+ return (Uint64) dw->dw_sint;
+#else
+ Uint64 res;
+ res = (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_HIGH_WORD]);
+ res <<= 32;
+ res |= (Uint64) ((Uint32) dw->sint[ERTS_DW_AINT_LOW_WORD]);
+ return res;
+#endif
+}
+
+#endif
+
+ERTS_GLB_INLINE Uint64
+erts_current_interval_nob__(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ return (Uint64) erts_atomic_read_nob(&icp->counter.atomic);
+#else
+ erts_dw_aint_t dw;
+ erts_dw_atomic_read_nob(&icp->counter.atomic, &dw);
+ return erts_interval_dw_aint_to_val__(&dw);
+#endif
+}
+
+ERTS_GLB_INLINE Uint64
+erts_current_interval_acqb__(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ return (Uint64) erts_atomic_read_acqb(&icp->counter.atomic);
+#else
+ erts_dw_aint_t dw;
+ erts_dw_atomic_read_acqb(&icp->counter.atomic, &dw);
+ return erts_interval_dw_aint_to_val__(&dw);
+#endif
+}
+
+ERTS_GLB_INLINE Uint64
+erts_current_interval_nob(erts_interval_t *icp)
+{
+ ASSERT(!icp->smp_api);
+ return erts_current_interval_nob__(icp);
+}
+
+ERTS_GLB_INLINE Uint64
+erts_current_interval_acqb(erts_interval_t *icp)
+{
+ ASSERT(!icp->smp_api);
+ return erts_current_interval_acqb__(icp);
+}
+
+ERTS_GLB_INLINE Uint64
+erts_smp_current_interval_nob(erts_interval_t *icp)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return erts_current_interval_nob__(icp);
+#else
+ return icp->counter.not_atomic;
+#endif
+}
+
+ERTS_GLB_INLINE Uint64
+erts_smp_current_interval_acqb(erts_interval_t *icp)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return erts_current_interval_acqb__(icp);
+#else
+ return icp->counter.not_atomic;
+#endif
+}
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
/*
* To be used to silence unused result warnings, but do not abuse it.
*/
@@ -1282,9 +1411,10 @@ void erts_silence_warn_unused_result(long unused);
void erts_cleanup_offheap(ErlOffHeap *offheap);
-Uint erts_fit_in_bits(Uint);
+int erts_fit_in_bits_int64(Sint64);
+int erts_fit_in_bits_int32(Sint32);
int list_length(Eterm);
-Export* erts_find_function(Eterm, Eterm, unsigned int);
+Export* erts_find_function(Eterm, Eterm, unsigned int, ErtsCodeIndex);
int erts_is_builtin(Eterm, Eterm, int);
Uint32 make_broken_hash(Eterm);
Uint32 block_hash(byte *, unsigned, Uint32);
@@ -1552,17 +1682,19 @@ struct trace_pattern_flags {
};
extern const struct trace_pattern_flags erts_trace_pattern_flags_off;
extern int erts_call_time_breakpoint_tracing;
-int erts_set_trace_pattern(Eterm* mfa, int specified,
+int erts_set_trace_pattern(Process*p, Eterm* mfa, int specified,
Binary* match_prog_set, Binary *meta_match_prog_set,
int on, struct trace_pattern_flags,
- Eterm meta_tracer_pid);
+ Eterm meta_tracer_pid, int is_blocking);
void
erts_get_default_trace_pattern(int *trace_pattern_is_on,
Binary **match_spec,
Binary **meta_match_spec,
struct trace_pattern_flags *trace_pattern_flags,
Eterm *meta_tracer_pid);
+int erts_is_default_trace_enabled(void);
void erts_bif_trace_init(void);
+int erts_finish_breakpointing(void);
/*
** Call_trace uses this API for the parameter matching functions
@@ -1608,20 +1740,19 @@ extern void erts_match_prog_foreach_offheap(Binary *b,
breakpoint functions */
#define MATCH_SET_EXCEPTION_TRACE (0x4) /* exception trace requested */
#define MATCH_SET_RX_TRACE (MATCH_SET_RETURN_TRACE|MATCH_SET_EXCEPTION_TRACE)
-/*
- * Flag values when tracing bif
- * Future note: flag field is 8 bits
- */
-#define BIF_TRACE_AS_LOCAL (0x1)
-#define BIF_TRACE_AS_GLOBAL (0x2)
-#define BIF_TRACE_AS_META (0x4)
-#define BIF_TRACE_AS_CALL_TIME (0x8)
extern erts_driver_t vanilla_driver;
extern erts_driver_t spawn_driver;
extern erts_driver_t fd_driver;
/* Should maybe be placed in erl_message.h, but then we get an include mess. */
+ERTS_GLB_INLINE Eterm *
+erts_alloc_message_heap_state(Uint size,
+ ErlHeapFragment **bpp,
+ ErlOffHeap **ohpp,
+ Process *receiver,
+ ErtsProcLocks *receiver_locks,
+ erts_aint32_t *statep);
ERTS_GLB_INLINE Eterm *
erts_alloc_message_heap(Uint size,
@@ -1644,16 +1775,22 @@ erts_alloc_message_heap(Uint size,
*/
ERTS_GLB_INLINE Eterm *
-erts_alloc_message_heap(Uint size,
- ErlHeapFragment **bpp,
- ErlOffHeap **ohpp,
- Process *receiver,
- ErtsProcLocks *receiver_locks)
+erts_alloc_message_heap_state(Uint size,
+ ErlHeapFragment **bpp,
+ ErlOffHeap **ohpp,
+ Process *receiver,
+ ErtsProcLocks *receiver_locks,
+ erts_aint32_t *statep)
{
Eterm *hp;
+ erts_aint32_t state;
#ifdef ERTS_SMP
int locked_main = 0;
- ErtsProcLocks ulocks = *receiver_locks & ERTS_PROC_LOCKS_MSG_SEND;
+ state = erts_smp_atomic32_read_acqb(&receiver->state);
+ if (statep)
+ *statep = state;
+ if (state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))
+ goto allocate_in_mbuf;
#endif
if (size > (Uint) INT_MAX)
@@ -1669,20 +1806,19 @@ erts_alloc_message_heap(Uint size,
#ifdef ERTS_SMP
try_allocate_on_heap:
#endif
- if (ERTS_PROC_IS_EXITING(receiver)
+ state = erts_smp_atomic32_read_nob(&receiver->state);
+ if (statep)
+ *statep = state;
+ if ((state & (ERTS_PSFLG_EXITING|ERTS_PSFLG_PENDING_EXIT))
|| HEAP_LIMIT(receiver) - HEAP_TOP(receiver) <= size) {
#ifdef ERTS_SMP
- if (locked_main)
- ulocks |= ERTS_PROC_LOCK_MAIN;
+ if (locked_main) {
+ *receiver_locks &= ~ERTS_PROC_LOCK_MAIN;
+ erts_smp_proc_unlock(receiver, ERTS_PROC_LOCK_MAIN);
+ }
#endif
goto allocate_in_mbuf;
}
-#ifdef ERTS_SMP
- if (ulocks) {
- erts_smp_proc_unlock(receiver, ulocks);
- *receiver_locks &= ~ulocks;
- }
-#endif
hp = HEAP_TOP(receiver);
HEAP_TOP(receiver) = hp + size;
*bpp = NULL;
@@ -1698,12 +1834,6 @@ erts_alloc_message_heap(Uint size,
else {
ErlHeapFragment *bp;
allocate_in_mbuf:
-#ifdef ERTS_SMP
- if (ulocks) {
- *receiver_locks &= ~ulocks;
- erts_smp_proc_unlock(receiver, ulocks);
- }
-#endif
bp = new_message_buffer(size);
hp = bp->mem;
*bpp = bp;
@@ -1713,6 +1843,17 @@ erts_alloc_message_heap(Uint size,
return hp;
}
+ERTS_GLB_INLINE Eterm *
+erts_alloc_message_heap(Uint size,
+ ErlHeapFragment **bpp,
+ ErlOffHeap **ohpp,
+ Process *receiver,
+ ErtsProcLocks *receiver_locks)
+{
+ return erts_alloc_message_heap_state(size, bpp, ohpp, receiver,
+ receiver_locks, NULL);
+}
+
#endif /* #if ERTS_GLB_INLINE_INCL_FUNC_DEF */
#if !HEAP_ON_C_STACK
diff --git a/erts/emulator/beam/index.c b/erts/emulator/beam/index.c
index a4a3007f93..25d5cce0f3 100644
--- a/erts/emulator/beam/index.c
+++ b/erts/emulator/beam/index.c
@@ -68,14 +68,14 @@ erts_index_init(ErtsAlcType_t type, IndexTable* t, char* name,
return t;
}
-int
-index_put(IndexTable* t, void* tmpl)
+IndexSlot*
+index_put_entry(IndexTable* t, void* tmpl)
{
int ix;
IndexSlot* p = (IndexSlot*) hash_put(&t->htable, tmpl);
if (p->index >= 0) {
- return p->index;
+ return p;
}
ix = t->entries;
@@ -92,7 +92,7 @@ index_put(IndexTable* t, void* tmpl)
t->entries++;
p->index = ix;
t->seg_table[ix>>INDEX_PAGE_SHIFT][ix&INDEX_PAGE_MASK] = p;
- return ix;
+ return p;
}
int index_get(IndexTable* t, void* tmpl)
@@ -135,3 +135,18 @@ void erts_index_merge(Hash* src, IndexTable* dst)
}
}
}
+
+void index_erase_latest_from(IndexTable* t, Uint from_ix)
+{
+ if(from_ix < (Uint)t->entries) {
+ int ix;
+ for (ix = from_ix; ix < t->entries; ix++) {
+ IndexSlot* obj = t->seg_table[ix>>INDEX_PAGE_SHIFT][ix&INDEX_PAGE_MASK];
+ hash_erase(&t->htable, obj);
+ }
+ t->entries = from_ix;
+ }
+ else {
+ ASSERT(from_ix == t->entries);
+ }
+}
diff --git a/erts/emulator/beam/index.h b/erts/emulator/beam/index.h
index 4eb9b1f992..3afe48d007 100644
--- a/erts/emulator/beam/index.h
+++ b/erts/emulator/beam/index.h
@@ -55,12 +55,24 @@ void index_info(int, void *, IndexTable*);
int index_table_sz(IndexTable *);
int index_get(IndexTable*, void*);
-int index_put(IndexTable*, void*);
+
+IndexSlot* index_put_entry(IndexTable*, void*);
void erts_index_merge(Hash*, IndexTable*);
+/* Erase all entries with index 'ix' and higher
+*/
+void index_erase_latest_from(IndexTable*, Uint ix);
+
+ERTS_GLB_INLINE int index_put(IndexTable*, void*);
ERTS_GLB_INLINE IndexSlot* erts_index_lookup(IndexTable*, Uint);
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+ERTS_GLB_INLINE int index_put(IndexTable* t, void* tmpl)
+{
+ return index_put_entry(t, tmpl)->index;
+}
+
ERTS_GLB_INLINE IndexSlot*
erts_index_lookup(IndexTable* t, Uint ix)
{
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index 204bff299e..845593d0b2 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -259,10 +259,8 @@ get_free_port(void)
}
}
port->status = ERTS_PORT_SFLG_INITIALIZING;
-#ifdef ERTS_SMP
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&port->refc) == 0);
+ ERTS_LC_ASSERT(erts_smp_atomic_read_nob(&port->refc) == 0);
erts_smp_atomic_set_nob(&port->refc, 2); /* Port alive + lock */
-#endif
erts_smp_port_state_unlock(port);
return num & port_num_mask;
}
@@ -340,10 +338,14 @@ port_cleanup(Port *prt)
prt->drv_ptr = NULL;
ASSERT(driver);
-#ifdef ERTS_SMP
-
ASSERT(prt->status & ERTS_PORT_SFLG_FREE_SCHEDULED);
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&prt->refc) == 0);
+ ERTS_LC_ASSERT(erts_smp_atomic_read_nob(&prt->refc) == 0);
+
+ ASSERT(prt->status & ERTS_PORT_SFLG_PORT_DEBUG);
+ ASSERT(!(prt->status & ERTS_PORT_SFLG_FREE));
+ prt->status = ERTS_PORT_SFLG_FREE;
+
+#ifdef ERTS_SMP
port_specific = (prt->status & ERTS_PORT_SFLG_PORT_SPECIFIC_LOCK);
@@ -352,10 +354,6 @@ port_cleanup(Port *prt)
prt->lock = NULL;
- ASSERT(prt->status & ERTS_PORT_SFLG_PORT_DEBUG);
- ASSERT(!(prt->status & ERTS_PORT_SFLG_FREE));
- prt->status = ERTS_PORT_SFLG_FREE;
-
erts_smp_port_state_unlock(prt);
erts_smp_mtx_unlock(mtx);
@@ -606,10 +604,8 @@ erts_open_driver(erts_driver_t* driver, /* Pointer to driver. */
/* Need to mark the port as free again */
erts_smp_port_state_lock(port);
port->status = ERTS_PORT_SFLG_FREE;
-#ifdef ERTS_SMP
- ERTS_SMP_LC_ASSERT(erts_smp_atomic_read_nob(&port->refc) == 2);
+ ERTS_LC_ASSERT(erts_smp_atomic_read_nob(&port->refc) == 2);
erts_smp_atomic_set_nob(&port->refc, 0);
-#endif
erts_smp_port_state_unlock(port);
return -3;
}
@@ -1330,7 +1326,7 @@ void init_io(void)
erts_max_ports = ERTS_MAX_R9_PORTS;
}
- port_extra_shift = erts_fit_in_bits(erts_max_ports - 1);
+ port_extra_shift = erts_fit_in_bits_int32(erts_max_ports - 1);
port_num_mask = (1 << ports_bits) - 1;
erts_port_tab_index_mask = ~(~((Uint) 0) << port_extra_shift);
@@ -1354,8 +1350,8 @@ void init_io(void)
for (i = 0; i < erts_max_ports; i++) {
erts_port_task_init_sched(&erts_port[i].sched);
-#ifdef ERTS_SMP
erts_smp_atomic_init_nob(&erts_port[i].refc, 0);
+#ifdef ERTS_SMP
erts_port[i].lock = NULL;
erts_port[i].xports = NULL;
erts_smp_spinlock_init_x(&erts_port[i].state_lck,
@@ -1594,6 +1590,7 @@ deliver_result(Eterm sender, Eterm pid, Eterm res)
{
Process *rp;
ErtsProcLocks rp_locks = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
ERTS_SMP_CHK_NO_PROC_LOCKS;
@@ -1601,7 +1598,9 @@ deliver_result(Eterm sender, Eterm pid, Eterm res)
&& is_internal_pid(pid)
&& internal_pid_index(pid) < erts_max_processes);
- rp = erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = (scheduler
+ ? erts_proc_lookup(pid)
+ : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC));
if (rp) {
Eterm tuple;
@@ -1619,7 +1618,9 @@ deliver_result(Eterm sender, Eterm pid, Eterm res)
#endif
);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
+
}
}
@@ -1644,6 +1645,7 @@ static void deliver_read_message(Port* prt, Eterm to,
ErlHeapFragment *bp;
ErlOffHeap *ohp;
ErtsProcLocks rp_locks = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
ERTS_SMP_CHK_NO_PROC_LOCKS;
@@ -1658,7 +1660,10 @@ static void deliver_read_message(Port* prt, Eterm to,
need += 2*len;
}
- rp = erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+ rp = (scheduler
+ ? erts_proc_lookup(to)
+ : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC));
+
if (!rp)
return;
@@ -1711,8 +1716,10 @@ static void deliver_read_message(Port* prt, Eterm to,
, NIL
#endif
);
- erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+ if (rp_locks)
+ erts_smp_proc_unlock(rp, rp_locks);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
}
/*
@@ -1779,6 +1786,7 @@ deliver_vec_message(Port* prt, /* Port */
ErlHeapFragment *bp;
ErlOffHeap *ohp;
ErtsProcLocks rp_locks = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
ERTS_SMP_CHK_NO_PROC_LOCKS;
@@ -1787,7 +1795,10 @@ deliver_vec_message(Port* prt, /* Port */
* Check arguments for validity.
*/
- rp = erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+
+ rp = (scheduler
+ ? erts_proc_lookup(to)
+ : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC));
if (!rp)
return;
@@ -1869,7 +1880,8 @@ deliver_vec_message(Port* prt, /* Port */
#endif
);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
}
@@ -2277,9 +2289,8 @@ void erts_port_command(Process *proc,
{
ErtsProcLocks rp_locks = ERTS_PROC_LOCKS_XSIG_SEND;
- Process* rp = erts_pid2proc_opt(NULL, 0,
- port->connected, rp_locks,
- ERTS_P2P_FLG_SMP_INC_REFC);
+ Process* rp = erts_pid2proc(NULL, 0,
+ port->connected, rp_locks);
if (rp) {
(void) erts_send_exit_signal(NULL,
port->id,
@@ -2290,7 +2301,6 @@ void erts_port_command(Process *proc,
NULL,
0);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
}
}
@@ -2841,13 +2851,17 @@ void driver_report_exit(int ix, int status)
ErlHeapFragment *bp = NULL;
ErlOffHeap *ohp;
ErtsProcLocks rp_locks = 0;
+ int scheduler = erts_get_scheduler_id() != 0;
ERTS_SMP_CHK_NO_PROC_LOCKS;
ERTS_SMP_LC_ASSERT(erts_lc_is_port_locked(prt));
pid = prt->connected;
ASSERT(is_internal_pid(pid));
- rp = erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC);
+
+ rp = (scheduler
+ ? erts_proc_lookup(pid)
+ : erts_pid2proc_opt(NULL, 0, pid, 0, ERTS_P2P_FLG_SMP_INC_REFC));
if (!rp)
return;
@@ -2864,7 +2878,8 @@ void driver_report_exit(int ix, int status)
);
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
}
@@ -2995,6 +3010,7 @@ driver_deliver_term(ErlDrvPort port,
ErlOffHeap *ohp;
ErtsProcLocks rp_locks = 0;
struct b2t_states__ b2t;
+ int scheduler = 1; /* Silence erroneous warning... */
init_b2t_states(&b2t);
@@ -3186,7 +3202,13 @@ driver_deliver_term(ErlDrvPort port,
if (res <= 0)
goto done;
- rp = erts_pid2proc_opt(NULL, 0, to, rp_locks, ERTS_P2P_FLG_SMP_INC_REFC);
+ /*
+ * Increase refc on proc if done from a non-scheduler thread.
+ */
+ scheduler = erts_get_scheduler_id() != 0;
+ rp = (scheduler
+ ? erts_proc_lookup(to)
+ : erts_pid2proc_opt(NULL, 0, to, 0, ERTS_P2P_FLG_SMP_INC_REFC));
if (!rp) {
res = 0;
goto done;
@@ -3438,7 +3460,8 @@ driver_deliver_term(ErlDrvPort port,
if (rp) {
if (rp_locks)
erts_smp_proc_unlock(rp, rp_locks);
- erts_smp_proc_dec_refc(rp);
+ if (!scheduler)
+ erts_smp_proc_dec_refc(rp);
}
#endif
cleanup_b2t_states(&b2t);
diff --git a/erts/emulator/beam/module.c b/erts/emulator/beam/module.c
index b93b1ad09a..1ef71cda79 100644
--- a/erts/emulator/beam/module.c
+++ b/erts/emulator/beam/module.c
@@ -26,21 +26,32 @@
#include "global.h"
#include "module.h"
+#ifdef DEBUG
+# define IF_DEBUG(x) x
+#else
+# define IF_DEBUG(x)
+#endif
+
#define MODULE_SIZE 50
#define MODULE_LIMIT (64*1024)
-static IndexTable module_table;
+static IndexTable module_tables[ERTS_NUM_CODE_IX];
-/*
- * SMP note: We don't need to look accesses to the module table because
- * there is one only scheduler thread when we update it.
+erts_smp_rwmtx_t the_old_code_rwlocks[ERTS_NUM_CODE_IX];
+
+static erts_smp_atomic_t tot_module_bytes;
+
+/* SMP note: Active module table lookup and current module instance can be
+ * read without any locks. Old module instances are protected by
+ * "the_old_code_rwlocks" as purging is done on active module table.
+ * Staging table is protected by the "code_ix lock".
*/
#include "erl_smp.h"
void module_info(int to, void *to_arg)
{
- index_info(to, to_arg, &module_table);
+ index_info(to, to_arg, &module_tables[erts_active_code_ix()]);
}
@@ -59,45 +70,67 @@ static int module_cmp(Module* tmpl, Module* obj)
static Module* module_alloc(Module* tmpl)
{
Module* obj = (Module*) erts_alloc(ERTS_ALC_T_MODULE, sizeof(Module));
+ erts_smp_atomic_add_nob(&tot_module_bytes, sizeof(Module));
obj->module = tmpl->module;
- obj->code = 0;
- obj->old_code = 0;
- obj->code_length = 0;
- obj->old_code_length = 0;
+ obj->curr.code = 0;
+ obj->old.code = 0;
+ obj->curr.code_length = 0;
+ obj->old.code_length = 0;
obj->slot.index = -1;
- obj->nif = NULL;
- obj->old_nif = NULL;
+ obj->curr.nif = NULL;
+ obj->old.nif = NULL;
+ obj->curr.num_breakpoints = 0;
+ obj->old.num_breakpoints = 0;
+ obj->curr.num_traced_exports = 0;
+ obj->old.num_traced_exports = 0;
return obj;
}
+static void module_free(Module* mod)
+{
+ erts_free(ERTS_ALC_T_MODULE, mod);
+ erts_smp_atomic_add_nob(&tot_module_bytes, -sizeof(Module));
+}
void init_module_table(void)
{
HashFunctions f;
+ int i;
f.hash = (H_FUN) module_hash;
f.cmp = (HCMP_FUN) module_cmp;
f.alloc = (HALLOC_FUN) module_alloc;
- f.free = 0;
+ f.free = (HFREE_FUN) module_free;
+
+ for (i = 0; i < ERTS_NUM_CODE_IX; i++) {
+ erts_index_init(ERTS_ALC_T_MODULE_TABLE, &module_tables[i], "module_code",
+ MODULE_SIZE, MODULE_LIMIT, f);
+ }
- erts_index_init(ERTS_ALC_T_MODULE_TABLE, &module_table, "module_code",
- MODULE_SIZE, MODULE_LIMIT, f);
+ for (i=0; i<ERTS_NUM_CODE_IX; i++) {
+ erts_smp_rwmtx_init_x(&the_old_code_rwlocks[i], "old_code", make_small(i));
+ }
+ erts_smp_atomic_init_nob(&tot_module_bytes, 0);
}
Module*
-erts_get_module(Eterm mod)
+erts_get_module(Eterm mod, ErtsCodeIndex code_ix)
{
Module e;
int index;
+ IndexTable* mod_tab;
ASSERT(is_atom(mod));
+
+ mod_tab = &module_tables[code_ix];
+
e.module = atom_val(mod);
- index = index_get(&module_table, (void*) &e);
+ index = index_get(mod_tab, (void*) &e);
if (index == -1) {
return NULL;
} else {
- return (Module*) erts_index_lookup(&module_table, index);
+ return (Module*) erts_index_lookup(mod_tab, index);
}
}
@@ -105,27 +138,101 @@ Module*
erts_put_module(Eterm mod)
{
Module e;
- int index;
+ IndexTable* mod_tab;
+ int oldsz, newsz;
+ Module* res;
ASSERT(is_atom(mod));
ERTS_SMP_LC_ASSERT(erts_initialized == 0
- || erts_smp_thr_progress_is_blocking());
+ || erts_is_code_ix_locked());
+
+ mod_tab = &module_tables[erts_staging_code_ix()];
e.module = atom_val(mod);
- index = index_put(&module_table, (void*) &e);
- return (Module*) erts_index_lookup(&module_table, index);
+ oldsz = index_table_sz(mod_tab);
+ res = (Module*) index_put_entry(mod_tab, (void*) &e);
+ newsz = index_table_sz(mod_tab);
+ erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz));
+ return res;
}
-Module *module_code(int i)
+Module *module_code(int i, ErtsCodeIndex code_ix)
{
- return (Module*) erts_index_lookup(&module_table, i);
+ return (Module*) erts_index_lookup(&module_tables[code_ix], i);
}
-int module_code_size(void)
+int module_code_size(ErtsCodeIndex code_ix)
{
- return module_table.entries;
+ return module_tables[code_ix].entries;
}
int module_table_sz(void)
{
- return index_table_sz(&module_table);
+ return erts_smp_atomic_read_nob(&tot_module_bytes);
+}
+
+#ifdef DEBUG
+static ErtsCodeIndex dbg_load_code_ix = 0;
+#endif
+
+static int entries_at_start_staging = 0;
+
+void module_start_staging(void)
+{
+ IndexTable* src = &module_tables[erts_active_code_ix()];
+ IndexTable* dst = &module_tables[erts_staging_code_ix()];
+ Module* src_mod;
+ Module* dst_mod;
+ int i, oldsz, newsz;
+
+ ASSERT(dbg_load_code_ix == -1);
+ ASSERT(dst->entries <= src->entries);
+
+ /*
+ * Make sure our existing modules are up-to-date
+ */
+ for (i = 0; i < dst->entries; i++) {
+ src_mod = (Module*) erts_index_lookup(src, i);
+ dst_mod = (Module*) erts_index_lookup(dst, i);
+ ASSERT(src_mod->module == dst_mod->module);
+
+ dst_mod->curr = src_mod->curr;
+ dst_mod->old = src_mod->old;
+ }
+
+ /*
+ * Copy all new modules from active table
+ */
+ oldsz = index_table_sz(dst);
+ for (i = dst->entries; i < src->entries; i++) {
+ src_mod = (Module*) erts_index_lookup(src, i);
+ dst_mod = (Module*) index_put_entry(dst, src_mod);
+ ASSERT(dst_mod != src_mod);
+
+ dst_mod->curr = src_mod->curr;
+ dst_mod->old = src_mod->old;
+ }
+ newsz = index_table_sz(dst);
+ erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz));
+
+ entries_at_start_staging = dst->entries;
+ IF_DEBUG(dbg_load_code_ix = erts_staging_code_ix());
+}
+
+void module_end_staging(int commit)
+{
+ ASSERT(dbg_load_code_ix == erts_staging_code_ix());
+
+ if (!commit) { /* abort */
+ IndexTable* tab = &module_tables[erts_staging_code_ix()];
+ int oldsz, newsz;
+
+ ASSERT(entries_at_start_staging <= tab->entries);
+ oldsz = index_table_sz(tab);
+ index_erase_latest_from(tab, entries_at_start_staging);
+ newsz = index_table_sz(tab);
+ erts_smp_atomic_add_nob(&tot_module_bytes, (newsz - oldsz));
+ }
+
+ IF_DEBUG(dbg_load_code_ix = -1);
}
+
diff --git a/erts/emulator/beam/module.h b/erts/emulator/beam/module.h
index 694e4ab72f..6e123a0ffe 100644
--- a/erts/emulator/beam/module.h
+++ b/erts/emulator/beam/module.h
@@ -24,28 +24,72 @@
#include "index.h"
#endif
+struct erl_module_instance {
+ BeamInstr* code;
+ int code_length; /* Length of loaded code in bytes. */
+ unsigned catches;
+ struct erl_module_nif* nif;
+ int num_breakpoints;
+ int num_traced_exports;
+};
typedef struct erl_module {
IndexSlot slot; /* Must be located at top of struct! */
int module; /* Atom index for module (not tagged). */
- BeamInstr* code;
- BeamInstr* old_code;
- int code_length; /* Length of loaded code in bytes. */
- int old_code_length; /* Length of old loaded code in bytes */
- unsigned catches, old_catches;
- struct erl_module_nif* nif;
- struct erl_module_nif* old_nif;
+ struct erl_module_instance curr;
+ struct erl_module_instance old; /* protected by "old_code" rwlock */
} Module;
-Module* erts_get_module(Eterm mod);
+Module* erts_get_module(Eterm mod, ErtsCodeIndex code_ix);
Module* erts_put_module(Eterm mod);
void init_module_table(void);
+void module_start_staging(void);
+void module_end_staging(int commit);
void module_info(int, void *);
-Module *module_code(int);
-int module_code_size(void);
+Module *module_code(int, ErtsCodeIndex);
+int module_code_size(ErtsCodeIndex);
int module_table_sz(void);
+ERTS_GLB_INLINE void erts_rwlock_old_code(ErtsCodeIndex);
+ERTS_GLB_INLINE void erts_rwunlock_old_code(ErtsCodeIndex);
+ERTS_GLB_INLINE void erts_rlock_old_code(ErtsCodeIndex);
+ERTS_GLB_INLINE void erts_runlock_old_code(ErtsCodeIndex);
+#ifdef ERTS_ENABLE_LOCK_CHECK
+int erts_is_old_code_rlocked(ErtsCodeIndex);
+#endif
+
+#if ERTS_GLB_INLINE_INCL_FUNC_DEF
+
+extern erts_smp_rwmtx_t the_old_code_rwlocks[ERTS_NUM_CODE_IX];
+
+ERTS_GLB_INLINE void erts_rwlock_old_code(ErtsCodeIndex code_ix)
+{
+ erts_smp_rwmtx_rwlock(&the_old_code_rwlocks[code_ix]);
+}
+ERTS_GLB_INLINE void erts_rwunlock_old_code(ErtsCodeIndex code_ix)
+{
+ erts_smp_rwmtx_rwunlock(&the_old_code_rwlocks[code_ix]);
+}
+ERTS_GLB_INLINE void erts_rlock_old_code(ErtsCodeIndex code_ix)
+{
+ erts_smp_rwmtx_rlock(&the_old_code_rwlocks[code_ix]);
+}
+ERTS_GLB_INLINE void erts_runlock_old_code(ErtsCodeIndex code_ix)
+{
+ erts_smp_rwmtx_runlock(&the_old_code_rwlocks[code_ix]);
+}
+
+#ifdef ERTS_ENABLE_LOCK_CHECK
+ERTS_GLB_INLINE int erts_is_old_code_rlocked(ErtsCodeIndex code_ix)
+{
+ return erts_smp_lc_rwmtx_is_rlocked(&the_old_code_rwlocks[code_ix]);
+}
#endif
+
+#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
+
+
+#endif /* !__MODULE_H__ */
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index 9b168889dd..6764e88c81 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -62,11 +62,8 @@ label L
i_func_info I a a I
int_code_end
-i_trace_breakpoint
-i_mtrace_breakpoint
+i_generic_breakpoint
i_debug_breakpoint
-i_count_breakpoint
-i_time_breakpoint
i_return_time_trace
i_return_to_trace
i_yield
@@ -522,7 +519,6 @@ apply_bif
call_nif
call_error_handler
error_action_code
-call_traced_function
return_trace
#
@@ -829,16 +825,20 @@ call_ext_only Ar=u==2 Bif=u$bif:erlang:load_nif/2 => allocate u Ar | i_call_ext
#
-# The apply/2 and apply/3 BIFs are instructions.
+# apply/2 is an instruction, not a BIF.
#
call_ext u==2 u$func:erlang:apply/2 => i_apply_fun
call_ext_last u==2 u$func:erlang:apply/2 D => i_apply_fun_last D
call_ext_only u==2 u$func:erlang:apply/2 => i_apply_fun_only
-call_ext u==3 u$func:erlang:apply/3 => i_apply
-call_ext_last u==3 u$func:erlang:apply/3 D => i_apply_last D
-call_ext_only u==3 u$func:erlang:apply/3 => i_apply_only
+#
+# The apply/3 BIF is an instruction.
+#
+
+call_ext u==3 u$bif:erlang:apply/3 => i_apply
+call_ext_last u==3 u$bif:erlang:apply/3 D => i_apply_last D
+call_ext_only u==3 u$bif:erlang:apply/3 => i_apply_only
#
# The exit/1 and throw/1 BIFs never execute the instruction following them;
diff --git a/erts/emulator/beam/register.c b/erts/emulator/beam/register.c
index 26d64887d0..c02872ef80 100644
--- a/erts/emulator/beam/register.c
+++ b/erts/emulator/beam/register.c
@@ -93,19 +93,14 @@ reg_safe_write_lock(Process *c_p, ErtsProcLocks *c_p_locks)
reg_write_lock();
}
+#endif
+
static ERTS_INLINE int
is_proc_alive(Process *p)
{
- int res;
- erts_pix_lock_t *pixlck = ERTS_PID2PIXLOCK(p->id);
- erts_pix_lock(pixlck);
- res = !p->is_exiting;
- erts_pix_unlock(pixlck);
- return res;
+ return !ERTS_PROC_IS_EXITING(p);
}
-#endif
-
void register_info(int to, void *to_arg)
{
int lock = !ERTS_IS_CRASH_DUMPING;
@@ -389,8 +384,7 @@ erts_whereis_name(Process *c_p,
}
#else
if (rp->p
- && ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X)
- || rp->p->status != P_EXITING))
+ && ((flags & ERTS_P2P_FLG_ALLOW_OTHER_X) || is_proc_alive(rp->p)))
*proc = rp->p;
else
*proc = NULL;
@@ -402,7 +396,9 @@ erts_whereis_name(Process *c_p,
if (!rp || !rp->pt)
*port = NULL;
else {
-#ifdef ERTS_SMP
+#ifndef ERTS_SMP
+ erts_smp_atomic_inc_nob(&rp->pt->refc);
+#else
if (pending_port == rp->pt)
pending_port = NULL;
else {
@@ -509,9 +505,11 @@ int erts_unregister_name(Process *c_p,
if ((rp = (RegProc*) hash_get(&process_reg, (void*) &r)) != NULL) {
if (rp->pt) {
if (port != rp->pt) {
-#ifdef ERTS_SMP
+#ifndef ERTS_SMP
+ erts_smp_atomic_inc_nob(&rp->pt->refc);
+#else
if (port) {
- ERTS_SMP_LC_ASSERT(port != c_prt);
+ ASSERT(port != c_prt);
erts_smp_port_unlock(port);
port = NULL;
}
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 7b2bb81f62..0d3b910278 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -39,6 +39,8 @@
#define ENABLE_CHILD_WAITER_THREAD 1
#endif
+#define ERTS_I64_LITERAL(X) X##LL
+
#if defined (__WIN32__)
# include "erl_win_sys.h"
#elif defined (VXWORKS)
@@ -91,14 +93,22 @@ typedef ERTS_SYS_FD_TYPE ErtsSysFdType;
# endif
#endif
-#ifdef __GNUC__
-# if __GNUC__ < 3 && (__GNUC__ != 2 || __GNUC_MINOR__ < 96)
-# define ERTS_LIKELY(BOOL) (BOOL)
-# define ERTS_UNLIKELY(BOOL) (BOOL)
-# else
-# define ERTS_LIKELY(BOOL) __builtin_expect((BOOL), !0)
-# define ERTS_UNLIKELY(BOOL) __builtin_expect((BOOL), 0)
-# endif
+#if !defined(__GNUC__)
+# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) 0
+#elif !defined(__GNUC_MINOR__)
+# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \
+ ((__GNUC__ << 24) >= (((MAJ) << 24) | ((MIN) << 12) | (PL)))
+#elif !defined(__GNUC_PATCHLEVEL__)
+# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \
+ (((__GNUC__ << 24) | (__GNUC_MINOR__ << 12)) >= (((MAJ) << 24) | ((MIN) << 12) | (PL)))
+#else
+# define ERTS_AT_LEAST_GCC_VSN__(MAJ, MIN, PL) \
+ (((__GNUC__ << 24) | (__GNUC_MINOR__ << 12) | __GNUC_PATCHLEVEL__) >= (((MAJ) << 24) | ((MIN) << 12) | (PL)))
+#endif
+
+#if ERTS_AT_LEAST_GCC_VSN__(2, 96, 0)
+# define ERTS_LIKELY(BOOL) __builtin_expect((BOOL), !0)
+# define ERTS_UNLIKELY(BOOL) __builtin_expect((BOOL), 0)
#else
# define ERTS_LIKELY(BOOL) (BOOL)
# define ERTS_UNLIKELY(BOOL) (BOOL)
@@ -178,6 +188,18 @@ int real_printf(const char *fmt, ...);
# define printf real_printf
#endif
+#undef __deprecated
+#if ERTS_AT_LEAST_GCC_VSN__(3, 0, 0)
+# define __deprecated __attribute__((deprecated))
+#else
+# define __deprecated
+#endif
+#if ERTS_AT_LEAST_GCC_VSN__(3, 0, 4)
+# define erts_align_attribute(SZ) __attribute__ ((aligned (SZ)))
+#else
+# define erts_align_attribute(SZ)
+#endif
+
/* In VC++, noreturn is a declspec that has to be before the types,
* but in GNUC it is an att ribute to be placed between return type
* and function name, hence __decl_noreturn <types> __noreturn <function name>
@@ -185,12 +207,6 @@ int real_printf(const char *fmt, ...);
#if __GNUC__
# define __decl_noreturn
# define __noreturn __attribute__((noreturn))
-# undef __deprecated
-# if __GNUC__ >= 3
-# define __deprecated __attribute__((deprecated))
-# else
-# define __deprecated
-# endif
#else
# if defined(__WIN32__) && defined(_MSC_VER)
# define __noreturn
@@ -199,7 +215,6 @@ int real_printf(const char *fmt, ...);
# define __noreturn
# define __decl_noreturn
# endif
-# define __deprecated
#endif
/*
diff --git a/erts/emulator/beam/utils.c b/erts/emulator/beam/utils.c
index a36d15204e..db6597dc7c 100644
--- a/erts/emulator/beam/utils.c
+++ b/erts/emulator/beam/utils.c
@@ -268,16 +268,42 @@ list_length(Eterm list)
return i;
}
-Uint erts_fit_in_bits(Uint n)
+static const struct {
+ Sint64 mask;
+ int bits;
+} fib_data[] = {{ERTS_I64_LITERAL(0x2), 1},
+ {ERTS_I64_LITERAL(0xc), 2},
+ {ERTS_I64_LITERAL(0xf0), 4},
+ {ERTS_I64_LITERAL(0xff00), 8},
+ {ERTS_I64_LITERAL(0xffff0000), 16},
+ {ERTS_I64_LITERAL(0xffffffff00000000), 32}};
+
+static ERTS_INLINE int
+fit_in_bits(Sint64 value, int start)
{
- Uint i;
+ int bits = 0;
+ int i;
- i = 0;
- while (n > 0) {
- i++;
- n >>= 1;
- }
- return i;
+ for (i = start; i >= 0; i--) {
+ if (value & fib_data[i].mask) {
+ value >>= fib_data[i].bits;
+ bits |= fib_data[i].bits;
+ }
+ }
+
+ bits++;
+
+ return bits;
+}
+
+int erts_fit_in_bits_int64(Sint64 value)
+{
+ return fit_in_bits(value, 5);
+}
+
+int erts_fit_in_bits_int32(Sint32 value)
+{
+ return fit_in_bits((Sint64) (Uint32) value, 4);
}
int
@@ -1640,12 +1666,20 @@ static int do_send_to_logger(Eterm tag, Eterm gleader, char *buf, int len)
}
#ifndef ERTS_SMP
- if (
#ifdef USE_THREADS
- !erts_get_scheduler_data() || /* Must be scheduler thread */
+ p = NULL;
+ if (erts_get_scheduler_data()) /* Must be scheduler thread */
#endif
- (p = erts_whereis_process(NULL, 0, am_error_logger, 0, 0)) == NULL
- || p->status == P_RUNNING) {
+ {
+ p = erts_whereis_process(NULL, 0, am_error_logger, 0, 0);
+ if (p) {
+ erts_aint32_t state = erts_smp_atomic32_read_acqb(&p->state);
+ if (state & ERTS_PSFLG_RUNNING)
+ p = NULL;
+ }
+ }
+
+ if (!p) {
/* buf *always* points to a null terminated string */
erts_fprintf(stderr, "(no error logger present) %T: \"%s\"\n",
tag, buf);
@@ -3240,7 +3274,7 @@ ptimer_timeout(ErtsSmpPTimer *ptimer)
ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_STATUS,
ERTS_P2P_FLG_ALLOW_OTHER_X);
if (p) {
- if (!p->is_exiting
+ if (!ERTS_PROC_IS_EXITING(p)
&& !(ptimer->timer.flags & ERTS_PTMR_FLG_CANCELLED)) {
ASSERT(*ptimer->timer.timer_ref == ptimer);
*ptimer->timer.timer_ref = NULL;
@@ -3458,6 +3492,254 @@ void erts_silence_warn_unused_result(long unused)
}
+/*
+ * Interval counts
+ */
+void
+erts_interval_init(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ erts_atomic_init_nob(&icp->counter.atomic, 0);
+#else
+ erts_dw_aint_t dw;
+#ifdef ETHR_SU_DW_NAINT_T__
+ dw.dw_sint = 0;
+#else
+ dw.sint[ERTS_DW_AINT_HIGH_WORD] = 0;
+ dw.sint[ERTS_DW_AINT_LOW_WORD] = 0;
+#endif
+ erts_dw_atomic_init_nob(&icp->counter.atomic, &dw);
+
+#endif
+#ifdef DEBUG
+ icp->smp_api = 0;
+#endif
+}
+
+void
+erts_smp_interval_init(erts_interval_t *icp)
+{
+#ifdef ERTS_SMP
+ erts_interval_init(icp);
+#else
+ icp->counter.not_atomic = 0;
+#endif
+#ifdef DEBUG
+ icp->smp_api = 1;
+#endif
+}
+
+static ERTS_INLINE Uint64
+step_interval_nob(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ return (Uint64) erts_atomic_inc_read_nob(&icp->counter.atomic);
+#else
+ erts_dw_aint_t exp;
+
+ erts_dw_atomic_read_nob(&icp->counter.atomic, &exp);
+ while (1) {
+ erts_dw_aint_t new = exp;
+
+#ifdef ETHR_SU_DW_NAINT_T__
+ new.dw_sint++;
+#else
+ new.sint[ERTS_DW_AINT_LOW_WORD]++;
+ if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0)
+ new.sint[ERTS_DW_AINT_HIGH_WORD]++;
+#endif
+
+ if (erts_dw_atomic_cmpxchg_nob(&icp->counter.atomic, &new, &exp))
+ return erts_interval_dw_aint_to_val__(&new);
+
+ }
+#endif
+}
+
+static ERTS_INLINE Uint64
+step_interval_relb(erts_interval_t *icp)
+{
+#ifdef ARCH_64
+ return (Uint64) erts_atomic_inc_read_relb(&icp->counter.atomic);
+#else
+ erts_dw_aint_t exp;
+
+ erts_dw_atomic_read_nob(&icp->counter.atomic, &exp);
+ while (1) {
+ erts_dw_aint_t new = exp;
+
+#ifdef ETHR_SU_DW_NAINT_T__
+ new.dw_sint++;
+#else
+ new.sint[ERTS_DW_AINT_LOW_WORD]++;
+ if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0)
+ new.sint[ERTS_DW_AINT_HIGH_WORD]++;
+#endif
+
+ if (erts_dw_atomic_cmpxchg_relb(&icp->counter.atomic, &new, &exp))
+ return erts_interval_dw_aint_to_val__(&new);
+
+ }
+#endif
+}
+
+
+static ERTS_INLINE Uint64
+ensure_later_interval_nob(erts_interval_t *icp, Uint64 ic)
+{
+ Uint64 curr_ic;
+#ifdef ARCH_64
+ curr_ic = (Uint64) erts_atomic_read_nob(&icp->counter.atomic);
+ if (curr_ic > ic)
+ return curr_ic;
+ return (Uint64) erts_atomic_inc_read_nob(&icp->counter.atomic);
+#else
+ erts_dw_aint_t exp;
+
+ erts_dw_atomic_read_nob(&icp->counter.atomic, &exp);
+ curr_ic = erts_interval_dw_aint_to_val__(&exp);
+ if (curr_ic > ic)
+ return curr_ic;
+
+ while (1) {
+ erts_dw_aint_t new = exp;
+
+#ifdef ETHR_SU_DW_NAINT_T__
+ new.dw_sint++;
+#else
+ new.sint[ERTS_DW_AINT_LOW_WORD]++;
+ if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0)
+ new.sint[ERTS_DW_AINT_HIGH_WORD]++;
+#endif
+
+ if (erts_dw_atomic_cmpxchg_nob(&icp->counter.atomic, &new, &exp))
+ return erts_interval_dw_aint_to_val__(&new);
+
+ curr_ic = erts_interval_dw_aint_to_val__(&exp);
+ if (curr_ic > ic)
+ return curr_ic;
+ }
+#endif
+}
+
+
+static ERTS_INLINE Uint64
+ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic)
+{
+ Uint64 curr_ic;
+#ifdef ARCH_64
+ curr_ic = (Uint64) erts_atomic_read_acqb(&icp->counter.atomic);
+ if (curr_ic > ic)
+ return curr_ic;
+ return (Uint64) erts_atomic_inc_read_acqb(&icp->counter.atomic);
+#else
+ erts_dw_aint_t exp;
+
+ erts_dw_atomic_read_acqb(&icp->counter.atomic, &exp);
+ curr_ic = erts_interval_dw_aint_to_val__(&exp);
+ if (curr_ic > ic)
+ return curr_ic;
+
+ while (1) {
+ erts_dw_aint_t new = exp;
+
+#ifdef ETHR_SU_DW_NAINT_T__
+ new.dw_sint++;
+#else
+ new.sint[ERTS_DW_AINT_LOW_WORD]++;
+ if (new.sint[ERTS_DW_AINT_LOW_WORD] == 0)
+ new.sint[ERTS_DW_AINT_HIGH_WORD]++;
+#endif
+
+ if (erts_dw_atomic_cmpxchg_acqb(&icp->counter.atomic, &new, &exp))
+ return erts_interval_dw_aint_to_val__(&new);
+
+ curr_ic = erts_interval_dw_aint_to_val__(&exp);
+ if (curr_ic > ic)
+ return curr_ic;
+ }
+#endif
+}
+
+Uint64
+erts_step_interval_nob(erts_interval_t *icp)
+{
+ ASSERT(!icp->smp_api);
+ return step_interval_nob(icp);
+}
+
+Uint64
+erts_step_interval_relb(erts_interval_t *icp)
+{
+ ASSERT(!icp->smp_api);
+ return step_interval_relb(icp);
+}
+
+Uint64
+erts_smp_step_interval_nob(erts_interval_t *icp)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return step_interval_nob(icp);
+#else
+ return ++icp->counter.not_atomic;
+#endif
+}
+
+Uint64
+erts_smp_step_interval_relb(erts_interval_t *icp)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return step_interval_relb(icp);
+#else
+ return ++icp->counter.not_atomic;
+#endif
+}
+
+Uint64
+erts_ensure_later_interval_nob(erts_interval_t *icp, Uint64 ic)
+{
+ ASSERT(!icp->smp_api);
+ return ensure_later_interval_nob(icp, ic);
+}
+
+Uint64
+erts_ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic)
+{
+ ASSERT(!icp->smp_api);
+ return ensure_later_interval_acqb(icp, ic);
+}
+
+Uint64
+erts_smp_ensure_later_interval_nob(erts_interval_t *icp, Uint64 ic)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return ensure_later_interval_nob(icp, ic);
+#else
+ if (icp->counter.not_atomic > ic)
+ return icp->counter.not_atomic;
+ else
+ return ++icp->counter.not_atomic;
+#endif
+}
+
+Uint64
+erts_smp_ensure_later_interval_acqb(erts_interval_t *icp, Uint64 ic)
+{
+ ASSERT(icp->smp_api);
+#ifdef ERTS_SMP
+ return ensure_later_interval_acqb(icp, ic);
+#else
+ if (icp->counter.not_atomic > ic)
+ return icp->counter.not_atomic;
+ else
+ return ++icp->counter.not_atomic;
+#endif
+}
+
+
#ifdef DEBUG
/*
* Handy functions when using a debugger - don't use in the code!
@@ -3490,7 +3772,7 @@ Process *p;
void ppi(Eterm pid)
{
- pp(erts_pid2proc_unlocked(pid));
+ pp(erts_proc_lookup(pid));
}
void td(Eterm x)
diff --git a/erts/emulator/drivers/common/inet_drv.c b/erts/emulator/drivers/common/inet_drv.c
index 76a9b55179..cfa158ffb1 100644
--- a/erts/emulator/drivers/common/inet_drv.c
+++ b/erts/emulator/drivers/common/inet_drv.c
@@ -535,6 +535,12 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n)
#endif /* __WIN32__ */
+#ifdef HAVE_SOCKLEN_T
+# define SOCKLEN_T socklen_t
+#else
+# define SOCKLEN_T int
+#endif
+
#include "packet_parser.h"
#define get_int24(s) ((((unsigned char*) (s))[0] << 16) | \
@@ -685,7 +691,7 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n)
#define INET_LOPT_EXITONCLOSE 26 /* exit port on active close or not ! */
#define INET_LOPT_TCP_HIWTRMRK 27 /* set local high watermark */
#define INET_LOPT_TCP_LOWTRMRK 28 /* set local low watermark */
-#define INET_LOPT_BIT8 29 /* set 8 bit detection */
+ /* 29 unused */
#define INET_LOPT_TCP_SEND_TIMEOUT 30 /* set send timeout */
#define INET_LOPT_TCP_DELAY_SEND 31 /* Delay sends until next poll */
#define INET_LOPT_PACKET_SIZE 32 /* Max packet size */
@@ -720,12 +726,6 @@ static int my_strncasecmp(const char *s1, const char *s2, size_t n)
#define INET_IFOPT_FLAGS 6
#define INET_IFOPT_HWADDR 7
-/* INET_LOPT_BIT8 options */
-#define INET_BIT8_CLEAR 0
-#define INET_BIT8_SET 1
-#define INET_BIT8_ON 2
-#define INET_BIT8_OFF 3
-
/* INET_REQ_GETSTAT enumeration */
#define INET_STAT_RECV_CNT 1
#define INET_STAT_RECV_MAX 2
@@ -921,7 +921,6 @@ typedef struct {
int mode; /* BINARY | LIST
(affect how to interpret hsz) */
int exitf; /* exit port on close or not */
- int bit8f; /* check if data has bit number 7 set */
int deliver; /* Delivery mode, TERM or PORT */
ErlDrvTermData caller; /* recipient of sync reply */
@@ -940,8 +939,6 @@ typedef struct {
int sfamily; /* address family */
enum PacketParseType htype; /* header type (TCP only?) */
unsigned int psize; /* max packet size (TCP only?) */
- int bit8; /* set if bit8f==true and data some data
- seen had the 7th bit set */
inet_address remote; /* remote address for connected sockets */
inet_address peer_addr; /* fake peer address */
inet_address name_addr; /* fake local address */
@@ -3342,17 +3339,6 @@ static int packet_error_message(udp_descriptor* udesc, int err)
}
-/* scan buffer for bit 7 */
-static void scanbit8(inet_descriptor* desc, const char* buf, int len)
-{
- int c;
-
- if (!desc->bit8f || desc->bit8) return;
- c = 0;
- while(len--) c |= *buf++;
- desc->bit8 = ((c & 0x80) != 0);
-}
-
/*
** active=TRUE:
** (NOTE! distribution MUST use active=TRUE, deliver=PORT)
@@ -3370,8 +3356,6 @@ static int tcp_reply_data(tcp_descriptor* desc, char* buf, int len)
packet_get_body(desc->inet.htype, &body, &bodylen);
- scanbit8(INETP(desc), body, bodylen);
-
if (desc->inet.deliver == INET_DELIVER_PORT) {
code = inet_port_data(INETP(desc), body, bodylen);
}
@@ -3403,8 +3387,6 @@ tcp_reply_binary_data(tcp_descriptor* desc, ErlDrvBinary* bin, int offs, int len
packet_get_body(desc->inet.htype, &body, &bodylen);
offs = body - bin->orig_bytes; /* body offset now */
- scanbit8(INETP(desc), body, bodylen);
-
if (desc->inet.deliver == INET_DELIVER_PORT)
code = inet_port_binary_data(INETP(desc), bin, offs, bodylen);
else if ((code=packet_parse(desc->inet.htype, buf, len, &desc->http_state,
@@ -3430,8 +3412,6 @@ packet_reply_binary_data(inet_descriptor* desc, unsigned int hsz,
{
int code;
- scanbit8(desc, bin->orig_bytes+offs, len);
-
if (desc->active == INET_PASSIVE)
/* "inet" is actually for both UDP and SCTP, as well as TCP! */
return inet_async_binary_data(desc, hsz, bin, offs, len, extra);
@@ -5349,13 +5329,8 @@ static int setopt_prio_tos_trick
int res;
int res_prio;
int res_tos;
-#ifdef HAVE_SOCKLEN_T
- socklen_t
-#else
- int
-#endif
- tmp_arg_sz_prio = sizeof(tmp_ival_prio),
- tmp_arg_sz_tos = sizeof(tmp_ival_tos);
+ SOCKLEN_T tmp_arg_sz_prio = sizeof(tmp_ival_prio);
+ SOCKLEN_T tmp_arg_sz_tos = sizeof(tmp_ival_tos);
res_prio = sock_getopt(fd, SOL_SOCKET, SO_PRIORITY,
(char *) &tmp_ival_prio, &tmp_arg_sz_prio);
@@ -5499,29 +5474,6 @@ static int inet_set_opts(inet_descriptor* desc, char* ptr, int len)
desc->exitf = ival;
continue;
- case INET_LOPT_BIT8:
- DEBUGF(("inet_set_opts(%ld): s=%d, BIT8=%d\r\n",
- (long)desc->port, desc->s, ival));
- switch(ival) {
- case INET_BIT8_ON:
- desc->bit8f = 1;
- desc->bit8 = 0;
- break;
- case INET_BIT8_OFF:
- desc->bit8f = 0;
- desc->bit8 = 0;
- break;
- case INET_BIT8_CLEAR:
- desc->bit8f = 1;
- desc->bit8 = 0;
- break;
- case INET_BIT8_SET:
- desc->bit8f = 1;
- desc->bit8 = 1;
- break;
- }
- continue;
-
case INET_LOPT_TCP_HIWTRMRK:
if (desc->stype == SOCK_STREAM) {
tcp_descriptor* tdesc = (tcp_descriptor*) desc;
@@ -6404,15 +6356,6 @@ static ErlDrvSSizeT inet_fill_opts(inet_descriptor* desc,
put_int32(desc->exitf, ptr);
continue;
- case INET_LOPT_BIT8:
- *ptr++ = opt;
- if (desc->bit8f) {
- put_int32(desc->bit8, ptr);
- } else {
- put_int32(INET_BIT8_OFF, ptr);
- }
- continue;
-
case INET_LOPT_TCP_HIWTRMRK:
if (desc->stype == SOCK_STREAM) {
*ptr++ = opt;
@@ -7471,8 +7414,6 @@ static ErlDrvData inet_start(ErlDrvPort port, int size, int protocol)
desc->mode = INET_MODE_LIST; /* list mode */
desc->exitf = 1; /* exit port when close on active
socket */
- desc->bit8f = 0;
- desc->bit8 = 0;
desc->deliver = INET_DELIVER_TERM; /* standard term format */
desc->active = INET_PASSIVE; /* start passive */
desc->oph = NULL;
@@ -7780,8 +7721,8 @@ static ErlDrvSSizeT inet_ctl(inet_descriptor* desc, int cmd, char* buf,
desc->state = INET_STATE_BOUND;
if ((port = inet_address_port(&local)) == 0) {
- len = sizeof(local);
- sock_name(desc->s, (struct sockaddr*) &local, (unsigned int*)&len);
+ SOCKLEN_T adrlen = sizeof(local);
+ sock_name(desc->s, &local.sa, &adrlen);
port = inet_address_port(&local);
}
port = sock_ntohs(port);
@@ -8100,7 +8041,6 @@ static tcp_descriptor* tcp_inet_copy(tcp_descriptor* desc,SOCKET s,
/* Some flags must be inherited at this point */
copy_desc->inet.mode = desc->inet.mode;
copy_desc->inet.exitf = desc->inet.exitf;
- copy_desc->inet.bit8f = desc->inet.bit8f;
copy_desc->inet.deliver = desc->inet.deliver;
copy_desc->inet.htype = desc->inet.htype;
copy_desc->inet.psize = desc->inet.psize;
@@ -9805,7 +9745,6 @@ static udp_descriptor* sctp_inet_copy(udp_descriptor* desc, SOCKET s, int* err)
/* Some flags must be inherited at this point */
copy_desc->inet.mode = desc->inet.mode;
copy_desc->inet.exitf = desc->inet.exitf;
- copy_desc->inet.bit8f = desc->inet.bit8f;
copy_desc->inet.deliver = desc->inet.deliver;
copy_desc->inet.htype = desc->inet.htype;
copy_desc->inet.psize = desc->inet.psize;
diff --git a/erts/emulator/hipe/hipe_bif0.c b/erts/emulator/hipe/hipe_bif0.c
index af593229c0..74868b868c 100644
--- a/erts/emulator/hipe/hipe_bif0.c
+++ b/erts/emulator/hipe/hipe_bif0.c
@@ -609,8 +609,8 @@ static Uint *hipe_find_emu_address(Eterm mod, Eterm name, unsigned int arity)
Uint *code_base;
int i, n;
- modp = erts_get_module(mod);
- if (modp == NULL || (code_base = modp->code) == NULL)
+ modp = erts_get_module(mod, erts_active_code_ix());
+ if (modp == NULL || (code_base = modp->curr.code) == NULL)
return NULL;
n = code_base[MI_NUM_FUNCTIONS];
for (i = 0; i < n; ++i) {
@@ -648,7 +648,7 @@ static void *hipe_get_emu_address(Eterm m, Eterm f, unsigned int arity, int is_r
/* if not found, stub it via the export entry */
/* no lock needed around erts_export_get_or_make_stub() */
Export *export_entry = erts_export_get_or_make_stub(m, f, arity);
- address = export_entry->address;
+ address = export_entry->addressv[erts_active_code_ix()];
}
return address;
}
@@ -1589,7 +1589,7 @@ BIF_RETTYPE hipe_nonclosure_address(BIF_ALIST_2)
f = tp[2];
if (is_not_atom(m) || is_not_atom(f))
goto badfun;
- if (!erts_find_export_entry(m, f, BIF_ARG_2))
+ if (!erts_active_export_entry(m, f, BIF_ARG_2))
goto badfun;
} else
goto badfun;
diff --git a/erts/emulator/hipe/hipe_bif2.c b/erts/emulator/hipe/hipe_bif2.c
index 37a1cc193b..ac0c2e2ffa 100644
--- a/erts/emulator/hipe/hipe_bif2.c
+++ b/erts/emulator/hipe/hipe_bif2.c
@@ -173,3 +173,10 @@ BIF_RETTYPE hipe_debug_bif_wrapper(BIF_ALIST_1)
#endif /* ERTS_ENABLE_LOCK_CHECK && ERTS_SMP */
+
+BIF_RETTYPE hipe_bifs_debug_native_called_2(BIF_ALIST_2)
+{
+ erts_printf("hipe_debug_native_called: %T(%T)\r\n", BIF_ARG_1, BIF_ARG_2);
+ BIF_RET(am_ok);
+}
+
diff --git a/erts/emulator/hipe/hipe_bif2.tab b/erts/emulator/hipe/hipe_bif2.tab
index aac27e8bed..ddbd31f155 100644
--- a/erts/emulator/hipe/hipe_bif2.tab
+++ b/erts/emulator/hipe/hipe_bif2.tab
@@ -29,3 +29,4 @@ bif hipe_bifs:show_term/1
bif hipe_bifs:in_native/0
bif hipe_bifs:modeswitch_debug_on/0
bif hipe_bifs:modeswitch_debug_off/0
+bif hipe_bifs:debug_native_called/2 \ No newline at end of file
diff --git a/erts/emulator/hipe/hipe_bif_list.m4 b/erts/emulator/hipe/hipe_bif_list.m4
index 942fa0c5cb..d9aa09b79e 100644
--- a/erts/emulator/hipe/hipe_bif_list.m4
+++ b/erts/emulator/hipe/hipe_bif_list.m4
@@ -165,6 +165,7 @@ gc_bif_interface_2(nbif_put_2, put_2)
gc_bif_interface_1(nbif_hipe_bifs_show_nstack_1, hipe_show_nstack_1)
gc_bif_interface_1(nbif_hipe_bifs_show_pcb_1, hipe_bifs_show_pcb_1)
gc_bif_interface_0(nbif_hipe_bifs_nstack_used_size_0, hipe_bifs_nstack_used_size_0)
+gc_bif_interface_2(nbif_hipe_bifs_debug_native_called, hipe_bifs_debug_native_called_2)
/*
* Arithmetic operators called indirectly by the HiPE compiler.
diff --git a/erts/emulator/hipe/hipe_debug.c b/erts/emulator/hipe/hipe_debug.c
index 7ca11f8c6c..37615bf718 100644
--- a/erts/emulator/hipe/hipe_debug.c
+++ b/erts/emulator/hipe/hipe_debug.c
@@ -188,8 +188,6 @@ void hipe_print_pcb(Process *p)
U("old_htop ", old_htop);
U("old_head ", old_heap);
U("min_heap_..", min_heap_size);
- U("status ", status);
- U("rstatus ", rstatus);
U("rcount ", rcount);
U("id ", id);
U("prio ", prio);
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c
index 6a3ce5608f..3c782b2f56 100644
--- a/erts/emulator/hipe/hipe_mode_switch.c
+++ b/erts/emulator/hipe/hipe_mode_switch.c
@@ -360,7 +360,8 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
p->flags &= ~F_HIBERNATE_SCHED;
goto do_schedule;
}
- if (p->status == P_WAITING) {
+
+ if (!(erts_smp_atomic32_read_acqb(&p->state) & ERTS_PSFLG_ACTIVE)) {
for (i = 0; i < p->arity; ++i)
p->arg_reg[i] = reg[i];
goto do_schedule;
@@ -451,10 +452,6 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
case HIPE_MODE_SWITCH_RES_SUSPEND: {
p->i = hipe_beam_pc_resume;
p->arity = 0;
- erts_smp_proc_lock(p, ERTS_PROC_LOCK_STATUS);
- if (p->status != P_SUSPENDED)
- erts_add_to_runq(p);
- erts_smp_proc_unlock(p, ERTS_PROC_LOCK_STATUS);
goto do_schedule;
}
case HIPE_MODE_SWITCH_RES_WAIT:
@@ -470,7 +467,8 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
#endif
p->i = hipe_beam_pc_resume;
p->arity = 0;
- p->status = P_WAITING;
+ erts_smp_atomic32_read_band_relb(&p->state,
+ ~ERTS_PSFLG_ACTIVE);
erts_smp_proc_unlock(p, ERTS_PROC_LOCKS_MSG_RECEIVE);
do_schedule:
{
diff --git a/erts/emulator/hipe/hipe_native_bif.h b/erts/emulator/hipe/hipe_native_bif.h
index 9e3a156fbc..3f460a5a5c 100644
--- a/erts/emulator/hipe/hipe_native_bif.h
+++ b/erts/emulator/hipe/hipe_native_bif.h
@@ -110,6 +110,9 @@ int hipe_bs_put_big_integer(Eterm, Uint, byte*, unsigned, unsigned);
AEXTERN(Eterm,nbif_check_get_msg,(Process*));
Eterm hipe_check_get_msg(Process*);
+AEXTERN(BIF_RETTYPE,nbif_hipe_bifs_debug_native_called,(Process*,Eterm,Eterm));
+BIF_RETTYPE hipe_bifs_debug_native_called_2(BIF_ALIST_2);
+
/*
* SMP-specific stuff
*/
diff --git a/erts/emulator/hipe/hipe_primops.h b/erts/emulator/hipe/hipe_primops.h
index 38509c105b..52b4681cfe 100644
--- a/erts/emulator/hipe/hipe_primops.h
+++ b/erts/emulator/hipe/hipe_primops.h
@@ -80,6 +80,7 @@ PRIMOP_LIST(am_fclearerror_error, &nbif_fclearerror_error)
#ifdef NO_FPE_SIGNALS
PRIMOP_LIST(am_emulate_fpe, &nbif_emulate_fpe)
#endif
+PRIMOP_LIST(am_debug_native_called, &nbif_hipe_bifs_debug_native_called)
#if defined(__sparc__)
#include "hipe_sparc_primops.h"
diff --git a/erts/emulator/hipe/hipe_stack.c b/erts/emulator/hipe/hipe_stack.c
index da462a64e1..53c316ba52 100644
--- a/erts/emulator/hipe/hipe_stack.c
+++ b/erts/emulator/hipe/hipe_stack.c
@@ -130,7 +130,7 @@ struct sdesc *hipe_decode_sdesc(Eterm arg)
struct sdesc *sdesc;
if (is_not_tuple(arg) ||
- (tuple_val(arg))[0] != make_arityval(5) ||
+ (tuple_val(arg))[0] != make_arityval(6) ||
term_to_Uint((tuple_val(arg))[1], &ra) == 0 ||
term_to_Uint((tuple_val(arg))[2], &exnra) == 0 ||
is_not_small((tuple_val(arg))[3]) ||
@@ -183,5 +183,13 @@ struct sdesc *hipe_decode_sdesc(Eterm arg)
off = unsigned_val(live[i]);
sdesc->livebits[off / 32] |= (1 << (off & 31));
}
+#ifdef DEBUG
+ {
+ Eterm mfa_tpl = tuple_val(arg)[6];
+ sdesc->dbg_M = tuple_val(mfa_tpl)[1];
+ sdesc->dbg_F = tuple_val(mfa_tpl)[2];
+ sdesc->dbg_A = tuple_val(mfa_tpl)[3];
+ }
+#endif
return sdesc;
}
diff --git a/erts/emulator/hipe/hipe_stack.h b/erts/emulator/hipe/hipe_stack.h
index 4e3076caf5..da706ae25e 100644
--- a/erts/emulator/hipe/hipe_stack.h
+++ b/erts/emulator/hipe/hipe_stack.h
@@ -35,6 +35,10 @@ struct sdesc {
struct sdesc *next; /* hash collision chain */
} bucket;
unsigned int summary; /* frame size, exn handler presence flag, arity */
+#ifdef DEBUG
+ Eterm dbg_M, dbg_F;
+ unsigned dbg_A;
+#endif
unsigned int livebits[1]; /* size depends on arch & data in summary field */
};
diff --git a/erts/emulator/hipe/hipe_x86_gc.h b/erts/emulator/hipe/hipe_x86_gc.h
index e4607ad27d..aa4abb6f59 100644
--- a/erts/emulator/hipe/hipe_x86_gc.h
+++ b/erts/emulator/hipe/hipe_x86_gc.h
@@ -69,6 +69,11 @@ nstack_walk_init_sdesc(const Process *p, struct nstack_walk_state *state)
nstkarity = 0;
state->sdesc0[0].summary = (0 << 9) | (0 << 8) | nstkarity;
state->sdesc0[0].livebits[0] = 0;
+# ifdef DEBUG
+ state->sdesc0[0].dbg_M = 0;
+ state->sdesc0[0].dbg_F = am_init;
+ state->sdesc0[0].dbg_A = 0;
+# endif
/* XXX: this appears to prevent a gcc-4.1.1 bug on x86 */
__asm__ __volatile__("" : : "m"(*state) : "memory");
return &state->sdesc0[0];
diff --git a/erts/emulator/hipe/hipe_x86_glue.h b/erts/emulator/hipe/hipe_x86_glue.h
index b0db93267c..63ad250d60 100644
--- a/erts/emulator/hipe/hipe_x86_glue.h
+++ b/erts/emulator/hipe/hipe_x86_glue.h
@@ -62,6 +62,9 @@ static __inline__ void hipe_arch_glue_init(void)
.sdesc = {
.bucket = { .hvalue = (unsigned long)nbif_return },
.summary = (1<<8),
+ #ifdef DEBUG
+ .dbg_F = am_return,
+ #endif
},
};
hipe_init_sdesc_table(&nbif_return_sdesc.sdesc);
diff --git a/erts/emulator/sys/common/erl_check_io.c b/erts/emulator/sys/common/erl_check_io.c
index c1336c60d9..ce014c19c2 100644
--- a/erts/emulator/sys/common/erl_check_io.c
+++ b/erts/emulator/sys/common/erl_check_io.c
@@ -39,7 +39,6 @@
#include "dtrace-wrapper.h"
#ifdef ERTS_SYS_CONTINOUS_FD_NUMBERS
-# define ERTS_DRV_EV_STATE_EXTRA_SIZE 128
#else
# include "safe_hash.h"
# define DRV_EV_STATE_HTAB_SIZE 1024
@@ -334,7 +333,9 @@ static void
grow_drv_ev_state(int min_ix)
{
int i;
- int new_len = min_ix + 1 + ERTS_DRV_EV_STATE_EXTRA_SIZE;
+ int new_len;
+
+ new_len = ERTS_POLL_EXPORT(erts_poll_get_table_len)(min_ix + 1);
if (new_len > max_fds)
new_len = max_fds;
diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c
index 26858052c4..5a8588351d 100644
--- a/erts/emulator/sys/common/erl_poll.c
+++ b/erts/emulator/sys/common/erl_poll.c
@@ -105,8 +105,8 @@
#define ERTS_POLL_COALESCE_KP_RES (ERTS_POLL_USE_KQUEUE || ERTS_POLL_USE_EPOLL)
-#define FDS_STATUS_EXTRA_FREE_SIZE 128
-#define POLL_FDS_EXTRA_FREE_SIZE 128
+#define ERTS_EV_TABLE_MIN_LENGTH 1024
+#define ERTS_EV_TABLE_EXP_THRESHOLD (2048*1024)
#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
# define ERTS_POLL_ASYNC_INTERRUPT_SUPPORT 1
@@ -563,6 +563,28 @@ free_update_requests_block(ErtsPollSet ps,
* --- Growing poll set structures -------------------------------------------
*/
+int
+ERTS_POLL_EXPORT(erts_poll_get_table_len) (int new_len)
+{
+ if (new_len < ERTS_EV_TABLE_MIN_LENGTH) {
+ new_len = ERTS_EV_TABLE_MIN_LENGTH;
+ } else if (new_len < ERTS_EV_TABLE_EXP_THRESHOLD) {
+ /* find next power of 2 */
+ --new_len;
+ new_len |= new_len >> 1;
+ new_len |= new_len >> 2;
+ new_len |= new_len >> 4;
+ new_len |= new_len >> 8;
+ new_len |= new_len >> 16;
+ ++new_len;
+ } else {
+ /* grow incrementally */
+ new_len += ERTS_EV_TABLE_EXP_THRESHOLD;
+ }
+ return new_len;
+}
+
+
#if ERTS_POLL_USE_KERNEL_POLL
static void
grow_res_events(ErtsPollSet ps, int new_len)
@@ -575,7 +597,7 @@ grow_res_events(ErtsPollSet ps, int new_len)
#elif ERTS_POLL_USE_KQUEUE
struct kevent
#endif
- )*new_len;
+ ) * ERTS_POLL_EXPORT(erts_poll_get_table_len)(new_len);
/* We do not need to save previously stored data */
if (ps->res_events)
erts_free(ERTS_ALC_T_POLL_RES_EVS, ps->res_events);
@@ -589,7 +611,7 @@ static void
grow_poll_fds(ErtsPollSet ps, int min_ix)
{
int i;
- int new_len = min_ix + 1 + POLL_FDS_EXTRA_FREE_SIZE;
+ int new_len = ERTS_POLL_EXPORT(erts_poll_get_table_len)(min_ix + 1);
if (new_len > max_fds)
new_len = max_fds;
ps->poll_fds = (ps->poll_fds_len
@@ -611,7 +633,7 @@ static void
grow_fds_status(ErtsPollSet ps, int min_fd)
{
int i;
- int new_len = min_fd + 1 + FDS_STATUS_EXTRA_FREE_SIZE;
+ int new_len = ERTS_POLL_EXPORT(erts_poll_get_table_len)(min_fd + 1);
ASSERT(min_fd < max_fds);
if (new_len > max_fds)
new_len = max_fds;
diff --git a/erts/emulator/sys/common/erl_poll.h b/erts/emulator/sys/common/erl_poll.h
index 8dde619105..502290e4bb 100644
--- a/erts/emulator/sys/common/erl_poll.h
+++ b/erts/emulator/sys/common/erl_poll.h
@@ -246,4 +246,6 @@ void ERTS_POLL_EXPORT(erts_poll_get_selected_events)(ErtsPollSet,
ErtsPollEvents [],
int);
+int ERTS_POLL_EXPORT(erts_poll_get_table_len)(int);
+
#endif /* #ifndef ERL_POLL_H__ */
diff --git a/erts/emulator/sys/win32/erl_win_sys.h b/erts/emulator/sys/win32/erl_win_sys.h
index 03298a6c54..21c52ca26d 100644
--- a/erts/emulator/sys/win32/erl_win_sys.h
+++ b/erts/emulator/sys/win32/erl_win_sys.h
@@ -90,6 +90,11 @@
#define strncasecmp _strnicmp
+#ifndef __GNUC__
+# undef ERTS_I64_LITERAL
+# define ERTS_I64_LITERAL(X) X##i64
+#endif
+
/*
* Practial Windows specific macros.
*/
diff --git a/erts/emulator/sys/win32/sys_time.c b/erts/emulator/sys/win32/sys_time.c
index b5123dc45d..2f2dfc8197 100644
--- a/erts/emulator/sys/win32/sys_time.c
+++ b/erts/emulator/sys/win32/sys_time.c
@@ -26,11 +26,7 @@
#include "sys.h"
#include "assert.h"
-#ifdef __GNUC__
-#define LL_LITERAL(X) X##LL
-#else
-#define LL_LITERAL(X) X##i64
-#endif
+#define LL_LITERAL(X) ERTS_I64_LITERAL(X)
/******************* Routines for time measurement *********************/
diff --git a/erts/emulator/test/Makefile b/erts/emulator/test/Makefile
index 03311423f0..627aa01bbf 100644
--- a/erts/emulator/test/Makefile
+++ b/erts/emulator/test/Makefile
@@ -47,6 +47,7 @@ MODULES= \
busy_port_SUITE \
call_trace_SUITE \
code_SUITE \
+ code_parallel_load_SUITE \
crypto_SUITE \
ddll_SUITE \
decode_packet_SUITE \
diff --git a/erts/emulator/test/bif_SUITE.erl b/erts/emulator/test/bif_SUITE.erl
index 99ed8f1748..e2442861c7 100644
--- a/erts/emulator/test/bif_SUITE.erl
+++ b/erts/emulator/test/bif_SUITE.erl
@@ -25,7 +25,9 @@
init_per_group/2,end_per_group/2,
init_per_testcase/2,end_per_testcase/2,
display/1, display_huge/0,
- types/1,
+ erl_bif_types/1,guard_bifs_in_erl_bif_types/1,
+ shadow_comments/1,
+ specs/1,improper_bif_stubs/1,auto_imports/1,
t_list_to_existing_atom/1,os_env/1,otp_7526/1,
binary_to_atom/1,binary_to_existing_atom/1,
atom_to_binary/1,min_max/1, erlang_halt/1]).
@@ -33,7 +35,9 @@
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
- [types, t_list_to_existing_atom, os_env, otp_7526,
+ [erl_bif_types, guard_bifs_in_erl_bif_types, shadow_comments,
+ specs, improper_bif_stubs, auto_imports,
+ t_list_to_existing_atom, os_env, otp_7526,
display,
atom_to_binary, binary_to_atom, binary_to_existing_atom,
min_max, erlang_halt].
@@ -86,33 +90,20 @@ deeep(N,Acc) ->
deeep(N) ->
deeep(N,[hello]).
+erl_bif_types(Config) when is_list(Config) ->
+ ensure_erl_bif_types_compiled(),
-types(Config) when is_list(Config) ->
- c:l(erl_bif_types),
- case erlang:function_exported(erl_bif_types, module_info, 0) of
- false ->
- %% Fail cleanly.
- ?line ?t:fail("erl_bif_types not compiled");
- true ->
- types_1()
- end.
-
-types_1() ->
- ?line List0 = erlang:system_info(snifs),
+ List0 = erlang:system_info(snifs),
%% Ignore missing type information for hipe BIFs.
- ?line List = [MFA || {M,_,_}=MFA <- List0, M =/= hipe_bifs],
+ List = [MFA || {M,_,_}=MFA <- List0, M =/= hipe_bifs],
- case [MFA || MFA <- List, not known_types(MFA)] of
- [] ->
- types_2(List);
- BadTypes ->
- io:put_chars("No type information:\n"),
- io:format("~p\n", [lists:sort(BadTypes)]),
- ?line ?t:fail({length(BadTypes),bifs_without_types})
- end.
+ KnownTypes = [MFA || MFA <- List, known_types(MFA)],
+ io:format("There are ~p BIFs with type information in erl_bif_types.",
+ [length(KnownTypes)]),
+ erl_bif_types_2(KnownTypes).
-types_2(List) ->
+erl_bif_types_2(List) ->
BadArity = [MFA || {M,F,A}=MFA <- List,
begin
Types = erl_bif_types:arg_types(M, F, A),
@@ -120,14 +111,14 @@ types_2(List) ->
end],
case BadArity of
[] ->
- types_3(List);
+ erl_bif_types_3(List);
[_|_] ->
io:put_chars("Bifs with bad arity\n"),
io:format("~p\n", [BadArity]),
?line ?t:fail({length(BadArity),bad_arity})
end.
-types_3(List) ->
+erl_bif_types_3(List) ->
BadSmokeTest = [MFA || {M,F,A}=MFA <- List,
begin
try erl_bif_types:type(M, F, A) of
@@ -151,9 +142,220 @@ types_3(List) ->
?line ?t:fail({length(BadSmokeTest),bad_smoke_test})
end.
+guard_bifs_in_erl_bif_types(_Config) ->
+ ensure_erl_bif_types_compiled(),
+
+ List0 = erlang:system_info(snifs),
+ List = [{F,A} || {erlang,F,A} <- List0,
+ erl_internal:guard_bif(F, A)],
+ Not = [FA || {F,A}=FA <- List,
+ not erl_bif_types:is_known(erlang, F, A)],
+ case Not of
+ [] ->
+ ok;
+ [_|_] ->
+ io:put_chars(
+ ["Dialyzer requires that all guard BIFs "
+ "have type information in erl_bif_types.\n\n"
+ "The following guard BIFs have no type information "
+ "in erl_bif_types:\n\n",
+ [io_lib:format(" ~p/~p\n", [F,A]) || {F,A} <- Not]]),
+ ?t:fail()
+ end.
+
+shadow_comments(_Config) ->
+ ensure_erl_bif_types_compiled(),
+
+ List0 = erlang:system_info(snifs),
+ List1 = [MFA || {M,_,_}=MFA <- List0, M =/= hipe_bifs],
+ List = [MFA || MFA <- List1, not is_operator(MFA)],
+ HasTypes = [MFA || {M,F,A}=MFA <- List,
+ erl_bif_types:is_known(M, F, A)],
+ Path = get_code_path(),
+ BifRel = sofs:relation(HasTypes, [{m,f,a}]),
+ BifModules = sofs:to_external(sofs:projection(1, BifRel)),
+ AbstrByModule = [extract_abstract(Mod, Path) || Mod <- BifModules],
+ Specs0 = [extract_specs(Mod, Abstr) ||
+ {Mod,Abstr} <- AbstrByModule],
+ Specs = lists:append(Specs0),
+ SpecFuns0 = [F || {F,_} <- Specs],
+ SpecFuns = sofs:relation(SpecFuns0, [{m,f,a}]),
+ HasTypesAndSpecs = sofs:intersection(BifRel, SpecFuns),
+ Commented0 = lists:append([extract_comments(Mod, Path) ||
+ Mod <- BifModules]),
+ Commented = sofs:relation(Commented0, [{m,f,a}]),
+ {NoComments0,_,NoBifSpecs0} =
+ sofs:symmetric_partition(HasTypesAndSpecs, Commented),
+ NoComments = sofs:to_external(NoComments0),
+ NoBifSpecs = sofs:to_external(NoBifSpecs0),
+
+ case NoComments of
+ [] ->
+ ok;
+ [_|_] ->
+ io:put_chars(
+ ["If a BIF stub has both a spec and has type information in "
+ "erl_bif_types, there *must*\n"
+ "be a comment in the source file to make that immediately "
+ "obvious.\n\nThe following comments are missing:\n\n",
+ [io_lib:format("%% Shadowed by erl_bif_types: ~p:~p/~p\n",
+ [M,F,A]) || {M,F,A} <- NoComments]]),
+ ?t:fail()
+ end,
+
+ case NoBifSpecs of
+ [] ->
+ ok;
+ [_|_] ->
+ io:put_chars(
+ ["The following functions have \"shadowed\" comments "
+ "claiming that there is type information in erl_bif_types,\n"
+ "but actually there is no such type information.\n\n"
+ "Therefore, the following comments should be removed:\n\n",
+ [io_lib:format("%% Shadowed by erl_bif_types: ~p:~p/~p\n",
+ [M,F,A]) || {M,F,A} <- NoBifSpecs]]),
+ ?t:fail()
+ end.
+
+extract_comments(Mod, Path) ->
+ Beam = which(Mod, Path),
+ SrcDir = filename:join(filename:dirname(filename:dirname(Beam)), "src"),
+ Src = filename:join(SrcDir, atom_to_list(Mod) ++ ".erl"),
+ {ok,Bin} = file:read_file(Src),
+ Lines0 = binary:split(Bin, <<"\n">>, [global]),
+ Lines1 = [T || <<"%% Shadowed by erl_bif_types: ",T/binary>> <- Lines0],
+ {ok,ReMFA} = re:compile("([^:]*):([^/]*)/(\\d*)"),
+ Lines = [L || L <- Lines1, re:run(L, ReMFA, [{capture,[]}]) =:= match],
+ [begin
+ {match,[M,F,A]} = re:run(L, ReMFA, [{capture,all_but_first,list}]),
+ {list_to_atom(M),list_to_atom(F),list_to_integer(A)}
+ end || L <- Lines].
+
+ensure_erl_bif_types_compiled() ->
+ c:l(erl_bif_types),
+ case erlang:function_exported(erl_bif_types, module_info, 0) of
+ false ->
+ %% Fail cleanly.
+ ?t:fail("erl_bif_types not compiled");
+ true ->
+ ok
+ end.
+
known_types({M,F,A}) ->
erl_bif_types:is_known(M, F, A).
+specs(_) ->
+ List0 = erlang:system_info(snifs),
+
+ %% Ignore missing type information for hipe BIFs.
+ List1 = [MFA || {M,_,_}=MFA <- List0, M =/= hipe_bifs],
+
+ %% Ignore all operators.
+ List = [MFA || MFA <- List1, not is_operator(MFA)],
+
+ %% Extract specs from the abstract code for all BIFs.
+ Path = get_code_path(),
+ BifRel = sofs:relation(List, [{m,f,a}]),
+ BifModules = sofs:to_external(sofs:projection(1, BifRel)),
+ AbstrByModule = [extract_abstract(Mod, Path) || Mod <- BifModules],
+ Specs0 = [extract_specs(Mod, Abstr) ||
+ {Mod,Abstr} <- AbstrByModule],
+ Specs = lists:append(Specs0),
+ BifSet = sofs:set(List, [function]),
+ SpecRel0 = sofs:relation(Specs, [{function,spec}]),
+ SpecRel = sofs:restriction(SpecRel0, BifSet),
+
+ %% Find BIFs without specs.
+ NoSpecs0 = sofs:difference(BifSet, sofs:domain(SpecRel)),
+ NoSpecs = sofs:to_external(NoSpecs0),
+ case NoSpecs of
+ [] ->
+ ok;
+ [_|_] ->
+ io:put_chars("The following BIFs don't have specs:\n"),
+ [print_mfa(MFA) || MFA <- NoSpecs],
+ ?t:fail()
+ end.
+
+is_operator({erlang,F,A}) ->
+ erl_internal:arith_op(F, A) orelse
+ erl_internal:bool_op(F, A) orelse
+ erl_internal:comp_op(F, A) orelse
+ erl_internal:list_op(F, A) orelse
+ erl_internal:send_op(F, A);
+is_operator(_) -> false.
+
+extract_specs(M, Abstr) ->
+ [{make_mfa(M, Name),Spec} || {attribute,_,spec,{Name,Spec}} <- Abstr].
+
+make_mfa(M, {F,A}) -> {M,F,A};
+make_mfa(M, {M,_,_}=MFA) -> MFA.
+
+improper_bif_stubs(_) ->
+ Bifs0 = erlang:system_info(snifs),
+ Bifs = [MFA || {M,_,_}=MFA <- Bifs0, M =/= hipe_bifs],
+ Path = get_code_path(),
+ BifRel = sofs:relation(Bifs, [{m,f,a}]),
+ BifModules = sofs:to_external(sofs:projection(1, BifRel)),
+ AbstrByModule = [extract_abstract(Mod, Path) || Mod <- BifModules],
+ Funcs0 = [extract_functions(Mod, Abstr) ||
+ {Mod,Abstr} <- AbstrByModule],
+ Funcs = lists:append(Funcs0),
+ BifSet = sofs:set(Bifs, [function]),
+ FuncRel0 = sofs:relation(Funcs, [{function,code}]),
+ FuncRel = sofs:restriction(FuncRel0, BifSet),
+ [check_stub(MFA, Body) || {MFA,Body} <- sofs:to_external(FuncRel)],
+ ok.
+
+auto_imports(_Config) ->
+ Path = get_code_path(),
+ {erlang,Abstr} = extract_abstract(erlang, Path),
+ SpecFuns = [Name || {attribute,_,spec,{Name,_}} <- Abstr],
+ auto_imports(SpecFuns, 0).
+
+auto_imports([{F,A}|T], Errors) ->
+ case erl_internal:bif(F, A) of
+ false ->
+ io:format("~p/~p: not auto-imported, but spec claims it "
+ "is auto-imported", [F,A]),
+ auto_imports(T, Errors+1);
+ true ->
+ auto_imports(T, Errors)
+ end;
+auto_imports([{erlang,F,A}|T], Errors) ->
+ case erl_internal:bif(F, A) of
+ false ->
+ auto_imports(T, Errors);
+ true ->
+ io:format("~p/~p: auto-imported, but "
+ "spec claims it is *not* auto-imported", [F,A]),
+ auto_imports(T, Errors+1)
+ end;
+auto_imports([], 0) ->
+ ok;
+auto_imports([], Errors) ->
+ ?t:fail({Errors,inconsistencies}).
+
+extract_functions(M, Abstr) ->
+ [{{M,F,A},Body} || {function,_,F,A,Body} <- Abstr].
+
+check_stub({erlang,apply,3}, _) ->
+ ok;
+check_stub({_,F,A}, B) ->
+ try
+ [{clause,_,Args,[],Body}] = B,
+ A = length(Args),
+ [{call,_,{remote,_,{atom,_,erlang},{atom,_,nif_error}},[_]}] = Body
+ catch
+ _:_ ->
+ io:put_chars("Invalid body for the following BIF stub:\n"),
+ Func = {function,0,F,A,B},
+ io:put_chars(erl_pp:function(Func)),
+ io:nl(),
+ io:put_chars("The body should be: erlang:nif_error(undef)"),
+ ?t:fail()
+ end.
+
t_list_to_existing_atom(Config) when is_list(Config) ->
?line all = list_to_existing_atom("all"),
?line ?MODULE = list_to_existing_atom(?MODULE_STRING),
@@ -483,6 +685,35 @@ erlang_halt(Config) when is_list(Config) ->
id(I) -> I.
+%% Get code path, including the path for the erts application.
+get_code_path() ->
+ case code:lib_dir(erts) of
+ {error,bad_name} ->
+ Erts = filename:join([code:root_dir(),"erts","preloaded","ebin"]),
+ [Erts|code:get_path()];
+ _ ->
+ code:get_path()
+ end.
+
+which(Mod, Path) ->
+ which_1(atom_to_list(Mod) ++ ".beam", Path).
+
+which_1(Base, [D|Ds]) ->
+ Path = filename:join(D, Base),
+ case filelib:is_regular(Path) of
+ true -> Path;
+ false -> which_1(Base, Ds)
+ end.
+print_mfa({M,F,A}) ->
+ io:format("~p:~p/~p", [M,F,A]).
+
+extract_abstract(Mod, Path) ->
+ Beam = which(Mod, Path),
+ {ok,{Mod,[{abstract_code,{raw_abstract_v1,Abstr}}]}} =
+ beam_lib:chunks(Beam, [abstract_code]),
+ {Mod,Abstr}.
+
+
hostname() ->
hostname(atom_to_list(node())).
diff --git a/erts/emulator/test/call_trace_SUITE.erl b/erts/emulator/test/call_trace_SUITE.erl
index 9d80b01748..eaecd32f95 100644
--- a/erts/emulator/test/call_trace_SUITE.erl
+++ b/erts/emulator/test/call_trace_SUITE.erl
@@ -25,6 +25,7 @@
init_per_testcase/2,end_per_testcase/2,
hipe/1,process_specs/1,basic/1,flags/1,errors/1,pam/1,change_pam/1,
return_trace/1,exception_trace/1,on_load/1,deep_exception/1,
+ upgrade/1,
exception_nocatch/1,bit_syntax/1]).
%% Helper functions.
@@ -46,6 +47,7 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
Common = [errors, on_load],
NotHipe = [process_specs, basic, flags, pam, change_pam,
+ upgrade,
return_trace, exception_trace, deep_exception,
exception_nocatch, bit_syntax],
Hipe = [hipe],
@@ -76,7 +78,13 @@ init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
end_per_testcase(_Func, Config) ->
Dog = ?config(watchdog, Config),
- ?t:timetrap_cancel(Dog).
+ ?t:timetrap_cancel(Dog),
+
+ %% Reloading the module will clear all trace patterns, and
+ %% in a debug-compiled emulator run assertions of the counters
+ %% for the number of traced exported functions in this module.
+
+ c:l(?MODULE).
hipe(Config) when is_list(Config) ->
?line 0 = erlang:trace_pattern({?MODULE,worker_foo,1}, true),
@@ -185,8 +193,13 @@ basic() ->
%% Trace some functions...
?line trace_func({lists,'_','_'}, []),
+
+ %% Make sure that tracing the same functions more than once
+ %% does not cause any problems.
+ ?line 3 = trace_func({?MODULE,foo,'_'}, true),
?line 3 = trace_func({?MODULE,foo,'_'}, true),
?line 1 = trace_func({?MODULE,bar,0}, true),
+ ?line 1 = trace_func({?MODULE,bar,0}, true),
?line {traced,global} = trace_info({?MODULE,bar,0}, traced),
?line 1 = trace_func({erlang,list_to_integer,1}, true),
?line {traced,global} = trace_info({erlang,list_to_integer,1}, traced),
@@ -267,6 +280,118 @@ foo() -> foo0.
foo(X) -> X+1.
foo(X, Y) -> X+Y.
+
+%% Note that the semantics that this test case verifies
+%% are not explicitly specified in the docs (what I could find in R15B).
+%% This test case was written to verify that we do not change
+%% any behaviour with the introduction of "block-free" upgrade in R16.
+%% In short: Do not refer to this test case as an authority of how it must work.
+upgrade(doc) ->
+ "Test tracing on module being upgraded";
+upgrade(Config) when is_list(Config) ->
+ V1 = compile_version(my_upgrade_test, 1, Config),
+ V2 = compile_version(my_upgrade_test, 2, Config),
+ start_tracer(),
+ upgrade_do(V1, V2, false),
+ upgrade_do(V1, V2, true).
+
+upgrade_do(V1, V2, TraceLocalVersion) ->
+ {module,my_upgrade_test} = erlang:load_module(my_upgrade_test, V1),
+
+
+ %% Test that trace is cleared after load_module
+
+ trace_func({my_upgrade_test,'_','_'}, [], [global]),
+ case TraceLocalVersion of
+ true -> trace_func({my_upgrade_test,local_version,0}, [], [local]);
+ _ -> ok
+ end,
+ 1 = my_upgrade_test:version(),
+ 1 = my_upgrade_test:do_local(),
+ 1 = my_upgrade_test:do_real_local(),
+ put('F1_exp', my_upgrade_test:make_fun_exp()),
+ put('F1_loc', my_upgrade_test:make_fun_local()),
+ 1 = (get('F1_exp'))(),
+ 1 = (get('F1_loc'))(),
+
+ Self = self(),
+ expect({trace,Self,call,{my_upgrade_test,version,[]}}),
+ expect({trace,Self,call,{my_upgrade_test,do_local,[]}}),
+ expect({trace,Self,call,{my_upgrade_test,do_real_local,[]}}),
+ case TraceLocalVersion of
+ true -> expect({trace,Self,call,{my_upgrade_test,local_version,[]}});
+ _ -> ok
+ end,
+ expect({trace,Self,call,{my_upgrade_test,make_fun_exp,[]}}),
+ expect({trace,Self,call,{my_upgrade_test,make_fun_local,[]}}),
+ expect({trace,Self,call,{my_upgrade_test,version,[]}}), % F1_exp
+ case TraceLocalVersion of
+ true -> expect({trace,Self,call,{my_upgrade_test,local_version,[]}}); % F1_loc
+ _ -> ok
+ end,
+
+ {module,my_upgrade_test} = erlang:load_module(my_upgrade_test, V2),
+ 2 = my_upgrade_test:version(),
+ put('F2_exp', my_upgrade_test:make_fun_exp()),
+ put('F2_loc', my_upgrade_test:make_fun_local()),
+ 2 = (get('F1_exp'))(),
+ 1 = (get('F1_loc'))(),
+ 2 = (get('F2_exp'))(),
+ 2 = (get('F2_loc'))(),
+ expect(),
+
+ put('F1_exp', undefined),
+ put('F1_loc', undefined),
+ erlang:garbage_collect(),
+ erlang:purge_module(my_upgrade_test),
+
+ % Test that trace is cleared after delete_module
+
+ trace_func({my_upgrade_test,'_','_'}, [], [global]),
+ case TraceLocalVersion of
+ true -> trace_func({my_upgrade_test,local_version,0}, [], [local]);
+ _ -> ok
+ end,
+ 2 = my_upgrade_test:version(),
+ 2 = my_upgrade_test:do_local(),
+ 2 = my_upgrade_test:do_real_local(),
+ 2 = (get('F2_exp'))(),
+ 2 = (get('F2_loc'))(),
+
+ expect({trace,Self,call,{my_upgrade_test,version,[]}}),
+ expect({trace,Self,call,{my_upgrade_test,do_local,[]}}),
+ expect({trace,Self,call,{my_upgrade_test,do_real_local,[]}}),
+ case TraceLocalVersion of
+ true -> expect({trace,Self,call,{my_upgrade_test,local_version,[]}});
+ _ -> ok
+ end,
+ expect({trace,Self,call,{my_upgrade_test,version,[]}}), % F2_exp
+ case TraceLocalVersion of
+ true -> expect({trace,Self,call,{my_upgrade_test,local_version,[]}}); % F2_loc
+ _ -> ok
+ end,
+
+ true = erlang:delete_module(my_upgrade_test),
+ {'EXIT',{undef,_}} = (catch my_upgrade_test:version()),
+ {'EXIT',{undef,_}} = (catch ((get('F2_exp'))())),
+ 2 = (get('F2_loc'))(),
+ expect(),
+
+ put('F2_exp', undefined),
+ put('F2_loc', undefined),
+ erlang:garbage_collect(),
+ erlang:purge_module(my_upgrade_test),
+ ok.
+
+compile_version(Module, Version, Config) ->
+ Data = ?config(data_dir, Config),
+ File = filename:join(Data, atom_to_list(Module)),
+ {ok,Module,Bin} = compile:file(File, [{d,'VERSION',Version},
+ binary,report]),
+ Bin.
+
+
+
%% Test flags (arity, timestamp) for call_trace/3.
%% Also, test the '{tracer,Pid}' option.
flags(_Config) ->
@@ -1151,11 +1276,13 @@ trace_info(What, Key) ->
Res.
trace_func(MFA, MatchSpec) ->
- get(tracer) ! {apply,self(),{erlang,trace_pattern,[MFA, MatchSpec]}},
+ trace_func(MFA, MatchSpec, []).
+trace_func(MFA, MatchSpec, Flags) ->
+ get(tracer) ! {apply,self(),{erlang,trace_pattern,[MFA, MatchSpec, Flags]}},
Res = receive
{apply_result,Result} -> Result
end,
- ok = io:format("trace_pattern(~p, ~p) -> ~p", [MFA,MatchSpec,Res]),
+ ok = io:format("trace_pattern(~p, ~p, ~p) -> ~p", [MFA,MatchSpec,Flags,Res]),
Res.
trace_pid(Pid, On, Flags) ->
diff --git a/erts/emulator/test/call_trace_SUITE_data/my_upgrade_test.erl b/erts/emulator/test/call_trace_SUITE_data/my_upgrade_test.erl
new file mode 100644
index 0000000000..11b8a95209
--- /dev/null
+++ b/erts/emulator/test/call_trace_SUITE_data/my_upgrade_test.erl
@@ -0,0 +1,26 @@
+-module(my_upgrade_test).
+
+-export([version/0]).
+-export([do_local/0]).
+-export([do_real_local/0]).
+-export([make_fun_exp/0]).
+-export([make_fun_local/0]).
+
+
+version() ->
+ ?VERSION.
+
+do_local() ->
+ version().
+
+do_real_local() ->
+ local_version().
+
+local_version() ->
+ ?VERSION.
+
+make_fun_exp() ->
+ fun() -> ?MODULE:version() end.
+
+make_fun_local() ->
+ fun() -> local_version() end.
diff --git a/erts/emulator/test/code_parallel_load_SUITE.erl b/erts/emulator/test/code_parallel_load_SUITE.erl
new file mode 100644
index 0000000000..aa9e4c96c6
--- /dev/null
+++ b/erts/emulator/test/code_parallel_load_SUITE.erl
@@ -0,0 +1,198 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2012. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+%% Author: Björn-Egil Dahlberg
+
+-module(code_parallel_load_SUITE).
+-export([
+ all/0,
+ suite/0,
+ init_per_suite/1,
+ end_per_suite/1,
+ init_per_testcase/2,
+ end_per_testcase/2
+ ]).
+
+-export([
+ multiple_load_check_purge_repeat/1,
+ many_load_distributed_only_once/1
+ ]).
+
+-define(model, code_parallel_load_SUITE_model).
+-define(interval, 50).
+-define(number_of_processes, 160).
+-define(passes, 4).
+
+
+-include_lib("test_server/include/test_server.hrl").
+
+suite() -> [{ct_hooks,[ts_install_cth]}].
+
+all() ->
+ [
+ multiple_load_check_purge_repeat,
+ many_load_distributed_only_once
+ ].
+
+
+init_per_suite(Config) ->
+ Config.
+
+end_per_suite(_Config) ->
+ ok.
+
+init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
+ Dog=?t:timetrap(?t:minutes(3)),
+ [{watchdog, Dog}|Config].
+
+end_per_testcase(_Func, Config) ->
+ SConf = ?config(save_config, Config),
+ Pids = proplists:get_value(purge_pids, SConf),
+
+ case check_old_code(?model) of
+ true -> check_and_purge_processes_code(Pids, ?model);
+ _ -> ok
+ end,
+ case erlang:delete_module(?model) of
+ true -> check_and_purge_processes_code(Pids, ?model);
+ _ -> ok
+ end,
+ Dog=?config(watchdog, Config),
+ ?t:timetrap_cancel(Dog).
+
+
+multiple_load_check_purge_repeat(_Conf) ->
+ Ts = [v1,v2,v3,v4,v5,v6],
+
+ %% generate code that receives a token, code switches to new code
+ %% then matches this token against a literal code token
+ %% should be identical
+ %% (smoke test for parallel code loading
+ Codes = [{T, generate(?model, [], [
+ format("check(T) -> receive {_Pid, change, T1} -> "
+ " ~w:check(T1)\n"
+ " after 0 -> T = f(), check(T) end.\n", [?model]),
+ format("f() -> ~w.~n", [T])
+ ])} || T <- Ts],
+
+ Pids = setup_code_changer(Codes),
+ {save_config, [{purge_pids,Pids}]}.
+
+setup_code_changer([{Token,Code}|Cs] = Codes) ->
+ {module, ?model} = erlang:load_module(?model,Code),
+ Pids = setup_checkers(Token,?number_of_processes),
+ code_changer(Cs, Codes, ?interval,Pids,?passes),
+ Pids.
+
+code_changer(_, _, _, Pids, 0) ->
+ [unlink(Pid) || Pid <- Pids],
+ [exit(Pid, die) || Pid <- Pids],
+ io:format("done~n"),
+ ok;
+code_changer([], Codes, T, Pids, Ps) ->
+ code_changer(Codes, Codes, T, Pids, Ps - 1);
+code_changer([{Token,Code}|Cs], Codes, T, Pids, Ps) ->
+ receive after T ->
+ io:format("load code with token ~4w : pass ~4w~n", [Token, Ps]),
+ {module, ?model} = erlang:load_module(?model, Code),
+ % this is second time we call load_module for this module
+ % so it should have old code
+ [Pid ! {self(), change, Token} || Pid <- Pids],
+ % should we wait a moment or just blantantly try to check and purge repeatadly?
+ receive after 1 -> ok end,
+ ok = check_and_purge_processes_code(Pids, ?model),
+ code_changer(Cs, Codes, T, Pids, Ps)
+ end.
+
+
+
+many_load_distributed_only_once(_Conf) ->
+ Ts = [<<"first version">>, <<"second version">>],
+
+ [{Token1,Code1},{Token2, Code2}] = [{T, generate(?model, [], [
+ "check({<<\"second version\">> = V, Pid}) -> V = f(), Pid ! {self(), completed, V}, ok;\n" ++
+ format("check(T) -> receive {Pid, change, T1, B} -> "
+ " Res = erlang:load_module(~w, B), Pid ! {self(), change, Res},\n"
+ " ~w:check({T1, Pid})\n"
+ " after 0 -> T = f(), check(T) end.\n", [?model, ?model]),
+ format("f() -> ~w.~n", [T])
+ ])} || T <- Ts],
+
+
+ {module, ?model} = erlang:load_module(?model, Code1),
+ Pids = setup_checkers(Token1,?number_of_processes),
+
+ receive after 1000 -> ok end, % give 'em some time to spin up
+ [Pid ! {self(), change, Token2, Code2} || Pid <- Pids],
+ Loads = [receive {Pid, change, Res} -> Res end || Pid <- Pids],
+ [receive {Pid, completed, Token2} -> ok end || Pid <- Pids],
+
+ ok = ensure_only_one_load(Loads, 0),
+ {save_config, [{purge_pids,Pids}]}.
+
+ensure_only_one_load([], 1) -> ok;
+ensure_only_one_load([], _) -> too_many_loads;
+ensure_only_one_load([{module, ?model}|Loads], N) ->
+ ensure_only_one_load(Loads, N + 1);
+ensure_only_one_load([{error, not_purged}|Loads], N) ->
+ ensure_only_one_load(Loads, N).
+% no other return values are allowed from load_module
+
+
+%% aux
+
+setup_checkers(_,0) -> [];
+setup_checkers(T,N) -> [spawn_link(fun() -> ?model:check(T) end) | setup_checkers(T, N-1)].
+
+check_and_purge_processes_code(Pids, M) ->
+ check_and_purge_processes_code(Pids, M, []).
+check_and_purge_processes_code([], M, []) ->
+ erlang:purge_module(M),
+ ok;
+check_and_purge_processes_code([], M, Pending) ->
+ io:format("Processes ~w are still executing old code - retrying.~n", [Pending]),
+ check_and_purge_processes_code(Pending, M, []);
+check_and_purge_processes_code([Pid|Pids], M, Pending) ->
+ case erlang:check_process_code(Pid, M) of
+ false ->
+ check_and_purge_processes_code(Pids, M, Pending);
+ true ->
+ check_and_purge_processes_code(Pids, M, [Pid|Pending])
+ end.
+
+
+generate(Module, Attributes, FunStrings) ->
+ FunForms = function_forms(FunStrings),
+ Forms = [
+ {attribute,1,module,Module},
+ {attribute,2,export,[FA || {FA,_} <- FunForms]}
+ ] ++ [{attribute, 3, A, V}|| {A, V} <- Attributes] ++
+ [ Function || {_, Function} <- FunForms],
+ {ok, Module, Bin} = compile:forms(Forms),
+ Bin.
+
+
+function_forms([]) -> [];
+function_forms([S|Ss]) ->
+ {ok, Ts,_} = erl_scan:string(S),
+ {ok, Form} = erl_parse:parse_form(Ts),
+ Fun = element(3, Form),
+ Arity = element(4, Form),
+ [{{Fun,Arity}, Form}|function_forms(Ss)].
+
+format(F,Ts) -> lists:flatten(io_lib:format(F, Ts)).
diff --git a/erts/emulator/test/mtx_SUITE_data/Makefile.src b/erts/emulator/test/mtx_SUITE_data/Makefile.src
index b6c843269c..37eb1daa72 100644
--- a/erts/emulator/test/mtx_SUITE_data/Makefile.src
+++ b/erts/emulator/test/mtx_SUITE_data/Makefile.src
@@ -27,4 +27,11 @@ LIBS = @ERTS_LIBS@
all: $(NIF_LIBS)
+mtx_SUITE.c: force_rebuild
+ touch mtx_SUITE.c
+
+force_rebuild:
+ echo "Force rebuild to compensate for emulator type dependencies"
+
+
@SHLIB_RULES@
diff --git a/erts/emulator/test/trace_local_SUITE.erl b/erts/emulator/test/trace_local_SUITE.erl
index 32e2a98e3c..b238d5c630 100644
--- a/erts/emulator/test/trace_local_SUITE.erl
+++ b/erts/emulator/test/trace_local_SUITE.erl
@@ -80,6 +80,7 @@ config(priv_dir,_) ->
exception_meta_nocatch/1, exception_meta_nocatch_apply/1,
exception_meta_nocatch_function/1,
exception_meta_nocatch_apply_function/1,
+ concurrency/1,
init_per_testcase/2, end_per_testcase/2]).
init_per_testcase(_Case, Config) ->
?line Dog=test_server:timetrap(test_server:minutes(2)),
@@ -89,7 +90,15 @@ end_per_testcase(_Case, Config) ->
shutdown(),
Dog=?config(watchdog, Config),
test_server:timetrap_cancel(Dog),
- ok.
+
+ %% Reloading the module will clear all trace patterns, and
+ %% in a debug-compiled emulator run assertions of the counters
+ %% for the number of functions with breakpoints.
+
+ c:l(?MODULE).
+
+
+
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
@@ -106,7 +115,8 @@ all() ->
exception_meta_apply_function, exception_meta_nocatch,
exception_meta_nocatch_apply,
exception_meta_nocatch_function,
- exception_meta_nocatch_apply_function]
+ exception_meta_nocatch_apply_function,
+ concurrency]
end.
groups() ->
@@ -350,7 +360,8 @@ same(A, B) ->
basic_test() ->
?line setup([call]),
- ?line erlang:trace_pattern({?MODULE,'_','_'},[],[local]),
+ NumMatches = erlang:trace_pattern({?MODULE,'_','_'},[],[local]),
+ NumMatches = erlang:trace_pattern({?MODULE,'_','_'},[],[local]),
?line erlang:trace_pattern({?MODULE,slave,'_'},false,[local]),
?line [1,1,1,1] = apply_slave(?MODULE,exported_wrap,[1]),
?line ?CT(?MODULE,exported_wrap,[1]),
@@ -813,6 +824,42 @@ clean_location({crash,{Reason,Stk0}}) ->
{crash,{Reason,Stk}};
clean_location(Term) -> Term.
+concurrency(_Config) ->
+ N = erlang:system_info(schedulers),
+
+ %% Spawn 2*N processes that spin in a tight infinite loop,
+ %% and one process that will turn on and off local call
+ %% trace on the infinite_loop/0 function. We expect the
+ %% emulator to crash if there is a memory barrier bug or
+ %% if an aligned word-sized write is not atomic.
+
+ Ps0 = [spawn_monitor(fun() -> infinite_loop() end) ||
+ _ <- lists:seq(1, 2*N)],
+ OnAndOff = fun() -> concurrency_on_and_off() end,
+ Ps1 = [spawn_monitor(OnAndOff)|Ps0],
+ ?t:sleep(1000),
+
+ %% Now spawn off N more processes that turn on off and off
+ %% a local trace pattern.
+ Ps = [spawn_monitor(OnAndOff) || _ <- lists:seq(1, N)] ++ Ps1,
+ ?t:sleep(1000),
+
+ %% Clean up.
+ [exit(Pid, kill) || {Pid,_} <- Ps],
+ [receive
+ {'DOWN',Ref,process,Pid,killed} -> ok
+ end || {Pid,Ref} <- Ps],
+ erlang:trace_pattern({?MODULE,infinite_loop,0}, false, [local]),
+ ok.
+
+concurrency_on_and_off() ->
+ 1 = erlang:trace_pattern({?MODULE,infinite_loop,0}, true, [local]),
+ 1 = erlang:trace_pattern({?MODULE,infinite_loop,0}, false, [local]),
+ concurrency_on_and_off().
+
+infinite_loop() ->
+ infinite_loop().
+
%%% Tracee target functions %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%
diff --git a/erts/emulator/utils/make_tables b/erts/emulator/utils/make_tables
index 91efb4c023..a841f26d6a 100755
--- a/erts/emulator/utils/make_tables
+++ b/erts/emulator/utils/make_tables
@@ -167,7 +167,6 @@ typedef struct bif_entry {
extern BifEntry bif_table[];
extern Export* bif_export[];
-extern unsigned char erts_bif_trace_flags[];
#define BIF_SIZE $bif_size
@@ -197,7 +196,6 @@ includes("export.h", "sys.h", "erl_vm.h", "erl_process.h", "bif.h",
"erl_bif_table.h", "erl_atom_table.h");
print "\nExport* bif_export[BIF_SIZE];\n";
-print "unsigned char erts_bif_trace_flags[BIF_SIZE];\n\n";
print "BifEntry bif_table[] = {\n";
for ($i = 0; $i < @bif; $i++) {