aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--erts/aclocal.m495
-rw-r--r--erts/emulator/Makefile.in14
-rw-r--r--erts/emulator/beam/bif.c48
-rw-r--r--erts/emulator/beam/bif.tab2
-rw-r--r--erts/emulator/beam/erl_init.c53
-rw-r--r--erts/emulator/beam/erl_port_task.c8
-rw-r--r--erts/emulator/beam/erl_threads.h14
-rw-r--r--erts/emulator/beam/global.h4
-rw-r--r--erts/emulator/beam/io.c26
-rw-r--r--erts/emulator/beam/sys.h2
-rw-r--r--erts/emulator/sys/common/erl_poll.c58
-rw-r--r--erts/emulator/sys/unix/erl9_start.c130
-rw-r--r--erts/emulator/sys/win32/erl_poll.c65
-rw-r--r--erts/emulator/sys/win32/sys.c6
-rw-r--r--erts/include/internal/ethread.h66
-rw-r--r--erts/include/internal/ethread_header_config.h.in23
-rw-r--r--erts/include/internal/gcc/ethr_atomic.h164
-rw-r--r--erts/include/internal/gcc/ethread.h30
-rw-r--r--erts/include/internal/i386/atomic.h20
-rw-r--r--erts/include/internal/ppc32/atomic.h11
-rw-r--r--erts/include/internal/sparc32/atomic.h14
-rw-r--r--erts/include/internal/tile/atomic.h2
-rw-r--r--erts/lib_src/Makefile.in2
-rw-r--r--erts/lib_src/common/ethread.c37
-rw-r--r--lib/kernel/src/dist_util.erl15
-rw-r--r--lib/kernel/src/net_kernel.erl200
-rw-r--r--lib/tools/emacs/Makefile1
-rw-r--r--lib/tools/emacs/README9
-rw-r--r--lib/tools/emacs/erlang-flymake.el102
-rw-r--r--xcomp/erl-xcomp-mips-linux.conf258
30 files changed, 1016 insertions, 463 deletions
diff --git a/erts/aclocal.m4 b/erts/aclocal.m4
index 3d935b7295..61244c7cd3 100644
--- a/erts/aclocal.m4
+++ b/erts/aclocal.m4
@@ -512,6 +512,8 @@ dnl
AC_DEFUN(LM_CHECK_THR_LIB,
[
+NEED_NPTL_PTHREAD_H=no
+
dnl win32?
AC_MSG_CHECKING([for native win32 threads])
if test "X$host_os" = "Xwin32"; then
@@ -585,7 +587,9 @@ dnl On ofs1 the '-pthread' switch should be used
fi
if test $nptl = yes; then
need_nptl_incldir=no
- AC_CHECK_HEADER(nptl/pthread.h, need_nptl_incldir=yes)
+ AC_CHECK_HEADER(nptl/pthread.h,
+ [need_nptl_incldir=yes
+ NEED_NPTL_PTHREAD_H=yes])
if test $need_nptl_incldir = yes; then
# Ahh...
nptl_path="$C_INCLUDE_PATH:$CPATH"
@@ -799,6 +803,11 @@ case "$THR_LIB_NAME" in
AC_DEFINE(ETHR_HAVE_MIT_PTHREAD_H, 1, \
[Define if the pthread.h header file is in pthread/mit directory.]))
+ if test $NEED_NPTL_PTHREAD_H = yes; then
+ AC_DEFINE(ETHR_NEED_NPTL_PTHREAD_H, 1, \
+[Define if you need the <nptl/pthread.h> header file.])
+ fi
+
AC_CHECK_HEADER(sys/time.h, \
AC_DEFINE(ETHR_HAVE_SYS_TIME_H, 1, \
[Define if you have the <sys/time.h> header file.]))
@@ -826,23 +835,70 @@ case "$THR_LIB_NAME" in
AC_CHECK_FUNC(pthread_spin_lock, \
AC_DEFINE(ETHR_HAVE_PTHREAD_SPIN_LOCK, 1, \
[Define if you have the pthread_spin_lock function.]))
- test "$force_linux_pthread_rwlocks" = "yes" || {
- force_linux_pthread_rwlocks=no
- }
- case "$force_linux_pthread_rwlocks-$host_os" in
- no-linux*) # Writers may get starved
- # TODO: write a test that tests the implementation
- ;;
- *)
- AC_CHECK_FUNC(pthread_rwlock_init, \
- AC_DEFINE(ETHR_HAVE_PTHREAD_RWLOCK_INIT, 1, \
-[Define if you have a pthread_rwlock implementation that can be used.]))
- ;;
- esac
+
+ have_pthread_rwlock_init=no
+ AC_CHECK_FUNC(pthread_rwlock_init, [have_pthread_rwlock_init=yes])
+ if test $have_pthread_rwlock_init = yes; then
+
+ AC_DEFINE(ETHR_HAVE_PTHREAD_RWLOCK_INIT, 1, \
+[Define if you have a pthread_rwlock implementation that can be used.])
+
+ ethr_have_pthread_rwlockattr_setkind_np=no
+ AC_CHECK_FUNC(pthread_rwlockattr_setkind_np,
+ [ethr_have_pthread_rwlockattr_setkind_np=yes])
+
+ if test $ethr_have_pthread_rwlockattr_setkind_np = yes; then
+ AC_DEFINE(ETHR_HAVE_PTHREAD_RWLOCKATTR_SETKIND_NP, 1, \
+[Define if you have the pthread_rwlockattr_setkind_np() function.])
+
+ AC_MSG_CHECKING([for PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP])
+ ethr_pthread_rwlock_writer_nonrecursive_initializer_np=no
+ AC_TRY_LINK([
+ #if defined(ETHR_NEED_NPTL_PTHREAD_H)
+ #include <nptl/pthread.h>
+ #elif defined(ETHR_HAVE_MIT_PTHREAD_H)
+ #include <pthread/mit/pthread.h>
+ #elif defined(ETHR_HAVE_PTHREAD_H)
+ #include <pthread.h>
+ #endif
+ ],
+ [
+ pthread_rwlockattr_t *attr;
+ return pthread_rwlockattr_setkind_np(attr,
+ PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP);
+ ],
+ [ethr_pthread_rwlock_writer_nonrecursive_initializer_np=yes])
+ AC_MSG_RESULT([$ethr_pthread_rwlock_writer_nonrecursive_initializer_np])
+ if test $ethr_pthread_rwlock_writer_nonrecursive_initializer_np = yes; then
+ AC_DEFINE(ETHR_HAVE_PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, 1, \
+[Define if you have the PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP rwlock attribute.])
+ fi
+ fi
+ fi
+
+
+
AC_CHECK_FUNC(pthread_attr_setguardsize, \
AC_DEFINE(ETHR_HAVE_PTHREAD_ATTR_SETGUARDSIZE, 1, \
[Define if you have the pthread_attr_setguardsize function.]))
+ AC_MSG_CHECKING([for GCC atomic operations])
+ ethr_have_gcc_atomic_ops=no
+ AC_TRY_LINK([],
+ [
+ long res;
+ volatile long val;
+ res = __sync_val_compare_and_swap(&val, (long) 1, (long) 0);
+ res = __sync_add_and_fetch(&val, (long) 1);
+ res = __sync_sub_and_fetch(&val, (long) 1);
+ res = __sync_fetch_and_and(&val, (long) 1);
+ res = __sync_fetch_and_or(&val, (long) 1);
+ ],
+ [ethr_have_native_atomics=yes
+ ethr_have_gcc_atomic_ops=yes])
+ AC_MSG_RESULT([$ethr_have_gcc_atomic_ops])
+ test $ethr_have_gcc_atomic_ops = yes && AC_DEFINE(ETHR_HAVE_GCC_ATOMIC_OPS, 1, [Define if you have gcc atomic operations])
+
dnl Restore LIBS
LIBS=$saved_libs
dnl restore CPPFLAGS
@@ -873,6 +929,17 @@ if test "X$disable_native_ethr_impls" = "Xyes"; then
AC_DEFINE(ETHR_DISABLE_NATIVE_IMPLS, 1, [Define if you want to disable native ethread implementations])
fi
+AC_ARG_ENABLE(prefer-gcc-native-ethr-impls,
+ AS_HELP_STRING([--enable-prefer-gcc-native-ethr-impls],
+ [enable prefer gcc native ethread implementations]),
+[ case "$enableval" in
+ yes) enable_prefer_gcc_native_ethr_impls=yes ;;
+ *) enable_prefer_gcc_native_ethr_impls=no ;;
+ esac ], enable_prefer_gcc_native_ethr_impls=no)
+
+test $enable_prefer_gcc_native_ethr_impls = yes &&
+ AC_DEFINE(ETHR_PREFER_GCC_NATIVE_IMPLS, 1, [Define if you prefer gcc native ethread implementations])
+
AC_DEFINE(ETHR_HAVE_ETHREAD_DEFINES, 1, \
[Define if you have all ethread defines])
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index d767194d4d..eca6121a1e 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -341,7 +341,6 @@ ERLANG_OSTYPE = @ERLANG_OSTYPE@
ENABLE_ALLOC_TYPE_VARS += @ERLANG_OSTYPE@
-EMULATOR_EXECUTABLE_SAE = beam_evm$(TF_MARKER)
EMULATOR_EXECUTABLE_ELIB = beam.elib$(TF_MARKER)
ifeq ($(TARGET), win32)
EMULATOR_EXECUTABLE = beam$(TF_MARKER).dll
@@ -406,7 +405,7 @@ endif
@set -e ; cd zlib && $(MAKE) clean
@set -e ; cd pcre && $(MAKE) clean
-.PHONY: all sae zlib pcre clean
+.PHONY: all zlib pcre clean
docs:
@@ -640,10 +639,6 @@ $(BINDIR)/$(CS_EXECUTABLE): $(CS_SRC)
$(OBJDIR)/%.elib.o: beam/%.c
$(CC) $(ELIB_FLAGS) $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
-# Disable vfork() for sae (then we don't need the child_setup program)
-$(OBJDIR)/sys_sae.o: sys/$(ERLANG_OSTYPE)/sys.c
- $(CC) -DDISABLE_VFORK=1 $(CFLAGS) $(INCLUDES) -c $< -o $@
-
$(OBJDIR)/%.kp.o: sys/common/%.c
$(CC) -DERTS_KERNEL_POLL_VERSION $(subst -O2, $(GEN_OPT_FLGS), $(CFLAGS)) $(INCLUDES) -c $< -o $@
@@ -689,8 +684,6 @@ endif
INIT_OBJS = $(OBJDIR)/erl_main.o $(PRELOAD)
-INIT_OBJS_SAE = $(OBJDIR)/erl9_start.o
-
EMU_OBJS = \
$(OBJDIR)/beam_emu.o $(OBJDIR)/beam_opcodes.o \
$(OBJDIR)/beam_load.o $(OBJDIR)/beam_bif_load.o \
@@ -826,7 +819,6 @@ endif
BASE_OBJS = $(RUN_OBJS) $(EMU_OBJS) $(OS_OBJS) $(EXTRA_BASE_OBJS)
OBJS = $(BASE_OBJS) $(DRV_OBJS)
-OBJS_SAE = $(subst sys.o,sys_sae.o,$(OBJS))
ELIB_C_FILES = beam/elib_malloc.c \
beam/elib_memmove.c \
@@ -933,10 +925,6 @@ $(BINDIR)/$(EMULATOR_EXECUTABLE_ELIB): $(INIT_OBJS) $(OBJS_ELIB) $(DEPLIBS)
$(PURIFY) $(LD) -o $(BINDIR)/$(EMULATOR_EXECUTABLE_ELIB) \
$(LDFLAGS) $(DEXPORT) $(INIT_OBJS) $(OBJS_ELIB) $(LIBS)
-$(BINDIR)/$(EMULATOR_EXECUTABLE_SAE): $(INIT_OBJS_SAE) $(OBJS_SAE) $(DEPLIBS)
- $(PURIFY) $(LD) -o $(BINDIR)/$(EMULATOR_EXECUTABLE_SAE) \
- $(LDFLAGS) $(DEXPORT) $(INIT_OBJS_SAE) $(OBJS_SAE) $(LIBS)
-
endif
#
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index 85bf584337..10cc2e9003 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -4143,54 +4143,6 @@ void erts_init_bif(void)
await_proc_exit_trap = erts_export_put(am_erlang,am_await_proc_exit,3);
}
-BIF_RETTYPE blocking_read_file_1(BIF_ALIST_1)
-{
- Eterm bin;
- Eterm* hp;
- byte *buff;
- int i, buff_size;
- FILE *file;
- struct stat file_info;
- char *filename = NULL;
- size_t size;
-
- i = list_length(BIF_ARG_1);
- if (i < 0) {
- BIF_ERROR(BIF_P, BADARG);
- }
- filename = erts_alloc(ERTS_ALC_T_TMP, i + 1);
- if (intlist_to_buf(BIF_ARG_1, filename, i) != i)
- erl_exit(1, "%s:%d: Internal error\n", __FILE__, __LINE__);
- filename[i] = '\0';
-
- hp = HAlloc(BIF_P, 3);
-
- file = fopen(filename, "r");
- if(file == NULL){
- erts_free(ERTS_ALC_T_TMP, (void *) filename);
- BIF_RET(TUPLE2(hp, am_error, am_nofile));
- }
-
- stat(filename, &file_info);
- erts_free(ERTS_ALC_T_TMP, (void *) filename);
-
- buff_size = file_info.st_size;
- buff = (byte *) erts_alloc_fnf(ERTS_ALC_T_TMP, buff_size);
- if (!buff) {
- fclose(file);
- BIF_RET(TUPLE2(hp, am_error, am_allocator));
- }
- size = fread(buff, 1, buff_size, file);
- fclose(file);
- if (size < 0)
- size = 0;
- else if (size > buff_size)
- size = (size_t) buff_size;
- bin = new_binary(BIF_P, buff, (int) size);
- erts_free(ERTS_ALC_T_TMP, (void *) buff);
-
- BIF_RET(TUPLE2(hp, am_ok, bin));
-}
#ifdef HARDDEBUG
/*
You'll need this line in bif.tab to be able to use this debug bif
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index 9feb302a3d..38e2dd77d3 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -686,8 +686,6 @@ bif 'erl.system.code':make_stub_module/3 ebif_code_make_stub_module_3
bif code:is_module_native/1
bif 'erl.system.code':is_native/1 ebif_code_is_native_1 code_is_module_native_1
-bif erlang:blocking_read_file/1
-
#
# New Bifs in R9C.
#
diff --git a/erts/emulator/beam/erl_init.c b/erts/emulator/beam/erl_init.c
index f2e71ae98d..2ee802cf3e 100644
--- a/erts/emulator/beam/erl_init.c
+++ b/erts/emulator/beam/erl_init.c
@@ -336,59 +336,6 @@ init_shared_memory(int argc, char **argv)
#endif
}
-
-/*
- * Create the very first process.
- */
-
-void
-erts_first_process(Eterm modname, void* code, unsigned size, int argc, char** argv)
-{
- int i;
- Eterm args;
- Eterm pid;
- Eterm* hp;
- Process parent;
- Process* p;
- ErlSpawnOpts so;
-
- if (erts_find_function(modname, am_start, 1) == NULL) {
- char sbuf[256];
- Atom* ap;
-
- ap = atom_tab(atom_val(modname));
- memcpy(sbuf, ap->name, ap->len);
- sbuf[ap->len] = '\0';
- erl_exit(5, "No function %s:start/1\n", sbuf);
- }
-
- /*
- * We need a dummy parent process to be able to call erl_create_process().
- */
- erts_init_empty_process(&parent);
- hp = HAlloc(&parent, argc*2 + 4);
- args = NIL;
- for (i = argc-1; i >= 0; i--) {
- int len = sys_strlen(argv[i]);
- args = CONS(hp, new_binary(&parent, (byte*)argv[i], len), args);
- hp += 2;
- }
- args = CONS(hp, new_binary(&parent, code, size), args);
- hp += 2;
- args = CONS(hp, args, NIL);
-
- so.flags = 0;
- pid = erl_create_process(&parent, modname, am_start, args, &so);
- p = process_tab[internal_pid_index(pid)];
- p->group_leader = pid;
-
- erts_cleanup_empty_process(&parent);
-}
-
-/*
- * XXX Old way of starting. Hopefully soon obsolete.
- */
-
static void
erl_first_process_otp(char* modname, void* code, unsigned size, int argc, char** argv)
{
diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c
index 0b6bb0d8e9..967a14f0d1 100644
--- a/erts/emulator/beam/erl_port_task.c
+++ b/erts/emulator/beam/erl_port_task.c
@@ -969,11 +969,11 @@ erts_port_task_execute(ErtsRunQueue *runq, Port **curr_port_pp)
erts_port_release(pp);
#else
{
- long refc = erts_smp_atomic_dectest(&pp->refc);
+ long refc;
+ erts_smp_mtx_unlock(pp->lock);
+ refc = erts_smp_atomic_dectest(&pp->refc);
ASSERT(refc >= 0);
- if (refc > 0)
- erts_smp_mtx_unlock(pp->lock);
- else {
+ if (refc == 0) {
erts_smp_runq_unlock(runq);
erts_port_cleanup(pp); /* Might aquire runq lock */
erts_smp_runq_lock(runq);
diff --git a/erts/emulator/beam/erl_threads.h b/erts/emulator/beam/erl_threads.h
index d635916dd8..21f85bd045 100644
--- a/erts/emulator/beam/erl_threads.h
+++ b/erts/emulator/beam/erl_threads.h
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 2001-2010. 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%
*/
@@ -34,6 +34,8 @@
#include "erl_lock_count.h"
#include "erl_term.h"
+#define ERTS_THR_MEMORY_BARRIER ETHR_MEMORY_BARRIER
+
#ifdef ERTS_ENABLE_LOCK_COUNT
#define erts_mtx_lock(L) erts_mtx_lock_x(L, __FILE__, __LINE__)
#define erts_spin_lock(L) erts_spin_lock_x(L, __FILE__, __LINE__)
@@ -122,6 +124,8 @@ __decl_noreturn void __noreturn erts_thr_fatal_error(int, char *);
#else /* #ifdef USE_THREADS */
+#define ERTS_THR_MEMORY_BARRIER
+
#define ERTS_THR_OPTS_DEFAULT_INITER 0
typedef int erts_thr_opts_t;
typedef int erts_thr_init_data_t;
diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h
index a7990e1799..d5d63631ff 100644
--- a/erts/emulator/beam/global.h
+++ b/erts/emulator/beam/global.h
@@ -1192,12 +1192,11 @@ erts_smp_port_unlock(Port *prt)
{
#ifdef ERTS_SMP
long refc;
+ erts_smp_mtx_unlock(prt->lock);
refc = erts_smp_atomic_dectest(&prt->refc);
ASSERT(refc >= 0);
if (refc == 0)
erts_port_cleanup(prt);
- else
- erts_smp_mtx_unlock(prt->lock);
#endif
}
@@ -1720,7 +1719,6 @@ int erts_print_system_version(int to, void *arg, Process *c_p);
* Interface to erl_init
*/
void erl_init(void);
-void erts_first_process(Eterm modname, void* code, unsigned size, int argc, char** argv);
#define seq_trace_output(token, msg, type, receiver, process) \
seq_trace_output_generic((token), (msg), (type), (receiver), (process), NIL)
diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c
index 10f1082039..68625801cf 100644
--- a/erts/emulator/beam/io.c
+++ b/erts/emulator/beam/io.c
@@ -280,10 +280,36 @@ erts_test_next_port(int set, Uint next)
return res;
}
+
+static void port_cleanup(Port *prt);
+
+#ifdef ERTS_SMP
+
+static void
+sched_port_cleanup(void *vprt)
+{
+ Port *prt = (Port *) vprt;
+ erts_smp_mtx_lock(prt->lock);
+ port_cleanup(prt);
+}
+
+#endif
+
void
erts_port_cleanup(Port *prt)
{
#ifdef ERTS_SMP
+ if (erts_smp_mtx_trylock(prt->lock) == EBUSY)
+ erts_schedule_misc_op(sched_port_cleanup, (void *) prt);
+ else
+#endif
+ port_cleanup(prt);
+}
+
+void
+port_cleanup(Port *prt)
+{
+#ifdef ERTS_SMP
Uint32 port_specific;
erts_smp_mtx_t *mtx;
#endif
diff --git a/erts/emulator/beam/sys.h b/erts/emulator/beam/sys.h
index 0f20d36167..ca87d3d70f 100644
--- a/erts/emulator/beam/sys.h
+++ b/erts/emulator/beam/sys.h
@@ -648,7 +648,7 @@ extern char *erts_sys_ddll_error(int code);
/*
- * System interfaces for startup/sae code (functions found in respective sys.c)
+ * System interfaces for startup.
*/
diff --git a/erts/emulator/sys/common/erl_poll.c b/erts/emulator/sys/common/erl_poll.c
index d268547e1a..09fb6337f7 100644
--- a/erts/emulator/sys/common/erl_poll.c
+++ b/erts/emulator/sys/common/erl_poll.c
@@ -130,13 +130,18 @@
#define ERTS_POLLSET_IS_POLLED(PS) \
((int) erts_smp_atomic_read(&(PS)->polled))
-#define ERTS_POLLSET_SET_POLLER_WOKEN_CHK(PS) \
- ((int) erts_smp_atomic_xchg(&(PS)->woken, (long) 1))
-#define ERTS_POLLSET_SET_POLLER_WOKEN(PS) \
- erts_smp_atomic_set(&(PS)->woken, (long) 1)
-#define ERTS_POLLSET_UNSET_POLLER_WOKEN(PS) \
- erts_smp_atomic_set(&(PS)->woken, (long) 0)
-#define ERTS_POLLSET_IS_POLLER_WOKEN(PS) \
+#define ERTS_POLLSET_SET_POLLER_WOKEN_CHK(PS) set_poller_woken_chk((PS))
+#define ERTS_POLLSET_SET_POLLER_WOKEN(PS) \
+do { \
+ ERTS_THR_MEMORY_BARRIER; \
+ erts_smp_atomic_set(&(PS)->woken, (long) 1); \
+} while (0)
+#define ERTS_POLLSET_UNSET_POLLER_WOKEN(PS) \
+do { \
+ erts_smp_atomic_set(&(PS)->woken, (long) 0); \
+ ERTS_THR_MEMORY_BARRIER; \
+} while (0)
+#define ERTS_POLLSET_IS_POLLER_WOKEN(PS) \
((int) erts_smp_atomic_read(&(PS)->woken))
#else
@@ -194,13 +199,18 @@
#else
-#define ERTS_POLLSET_UNSET_INTERRUPTED_CHK(PS) \
- ((int) erts_smp_atomic_xchg(&(PS)->interrupt, (long) 0))
-#define ERTS_POLLSET_UNSET_INTERRUPTED(PS) \
- erts_smp_atomic_set(&(PS)->interrupt, (long) 0)
-#define ERTS_POLLSET_SET_INTERRUPTED(PS) \
- erts_smp_atomic_set(&(PS)->interrupt, (long) 1)
-#define ERTS_POLLSET_IS_INTERRUPTED(PS) \
+#define ERTS_POLLSET_UNSET_INTERRUPTED_CHK(PS) unset_interrupted_chk((PS))
+#define ERTS_POLLSET_UNSET_INTERRUPTED(PS) \
+do { \
+ erts_smp_atomic_set(&(PS)->interrupt, (long) 0); \
+ ERTS_THR_MEMORY_BARRIER; \
+} while (0)
+#define ERTS_POLLSET_SET_INTERRUPTED(PS) \
+do { \
+ ERTS_THR_MEMORY_BARRIER; \
+ erts_smp_atomic_set(&(PS)->interrupt, (long) 1); \
+} while (0)
+#define ERTS_POLLSET_IS_INTERRUPTED(PS) \
((int) erts_smp_atomic_read(&(PS)->interrupt))
#endif
@@ -336,16 +346,30 @@ struct ErtsPollSet_ {
#endif
};
-#if ERTS_POLL_ASYNC_INTERRUPT_SUPPORT && !defined(ERTS_SMP)
-
static ERTS_INLINE int
unset_interrupted_chk(ErtsPollSet ps)
{
+ int res;
+#if ERTS_POLL_ASYNC_INTERRUPT_SUPPORT && !defined(ERTS_SMP)
/* This operation isn't atomic, but we have no need at all for an
atomic operation here... */
- int res = ps->interrupt;
+ res = ps->interrupt;
ps->interrupt = 0;
+#else
+ res = (int) erts_smp_atomic_xchg(&ps->interrupt, (long) 0);
+ ERTS_THR_MEMORY_BARRIER;
+#endif
return res;
+
+}
+
+#ifdef ERTS_SMP
+
+static ERTS_INLINE int
+set_poller_woken_chk(ErtsPollSet ps)
+{
+ ERTS_THR_MEMORY_BARRIER;
+ return (int) erts_smp_atomic_xchg(&ps->woken, (long) 1);
}
#endif
diff --git a/erts/emulator/sys/unix/erl9_start.c b/erts/emulator/sys/unix/erl9_start.c
deleted file mode 100644
index 578062d7e2..0000000000
--- a/erts/emulator/sys/unix/erl9_start.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 2002-2009. 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 <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-/*
- * XXX This is a temporary dummy to make sys.c happy until we'll rewrite it.
- */
-unsigned preloaded_size_ring0 = 1;
-unsigned char preloaded_ring0[1] = {0};
-
-Preload pre_loaded[] = {
- {"ring0", 1, preloaded_ring0},
- {0, 0, 0}
-};
-
-int
-main(int argc, char** argv)
-{
- char sbuf[1024];
- struct {
- void* p;
- int sz;
- } bins[2];
- int bin_num = 0;
- FILE* fp;
- char* progname = argv[0];
- char* eq;
-
- argv++, argc--;
-
- if (argc > 0 && argv[0][0] == '-') {
- argv++, argc--;
- }
- if (argc < 1) {
- abort();
- }
- if ((fp = fopen(argv[0], "r")) == NULL) {
- abort();
- }
-
- /* Needs to be called before any memory allocation */
- erts_short_init();
-
- while (fgets(sbuf, sizeof sbuf, fp)) {
- if (sbuf[0] == '#') {
- continue; /* Comment */
- } else if (sbuf[0] == 'e' && strncmp("exec", sbuf, 4) == 0) {
- continue; /* Comment ;-) */
- } else if ((eq = strchr(sbuf, '=')) != NULL) {
- char* val;
- char* p = strchr(sbuf, '\n');
- if (p) {
- *p = '\0';
- }
- *eq = '\0';
- val = erts_read_env(sbuf);
- if (val == NULL) {
- *eq = '=';
- erts_sys_putenv(sbuf, eq - &sbuf[0]);
- }
- erts_free_read_env(val);
- } else if (sbuf[0] == ':' && '0' <= sbuf[1] && sbuf[1] <= '9') {
- int load_size = atoi(sbuf+1);
- void* bin;
-
- bin = malloc(load_size);
- if (fread(bin, 1, load_size, fp) != load_size) {
- abort();
- }
- bins[bin_num].p = bin;
- bins[bin_num].sz = load_size;
- bin_num++;
- } else if (strcmp(sbuf, "--end--\n") == 0) {
- int rval;
- Eterm mod = NIL;
- char *val;
-
- fclose(fp);
-
- if (bin_num != 2) {
- abort();
- }
-
- val = erts_read_env("ERLBREAKHANDLER");
- if (val) {
- init_break_handler();
- }
- erts_free_read_env(val);
-
- if ((rval = erts_load_module(NULL, 0, NIL, &mod, bins[0].p, bins[0].sz)) < 0) {
- fprintf(stderr, "%s: Load of initial module failed: %d\n",
- progname, rval);
- abort();
- }
- erts_first_process(mod, bins[1].p, bins[1].sz, argc, argv);
- free(bins[0].p);
- free(bins[1].p);
- process_main();
- abort();
- } else {
- fprintf(stderr, "%s: bad line: %s\n", progname, sbuf);
- abort();
- }
- }
- abort();
-}
diff --git a/erts/emulator/sys/win32/erl_poll.c b/erts/emulator/sys/win32/erl_poll.c
index d816cc2c07..a766fe9575 100644
--- a/erts/emulator/sys/win32/erl_poll.c
+++ b/erts/emulator/sys/win32/erl_poll.c
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 2007-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 2007-2010. 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
@@ -304,24 +304,51 @@ struct ErtsPollSet_ {
erts_smp_atomic_set(&(PS)->polled, (long) 0)
#define ERTS_POLLSET_IS_POLLED(PS) \
((int) erts_smp_atomic_read(&(PS)->polled))
-#define ERTS_POLLSET_SET_POLLER_WOKEN_CHK(PS) \
- ((int) erts_smp_atomic_xchg(&(PS)->woken, (long) 1))
-#define ERTS_POLLSET_SET_POLLER_WOKEN(PS) \
- erts_smp_atomic_set(&(PS)->woken, (long) 1)
-#define ERTS_POLLSET_UNSET_POLLER_WOKEN(PS) \
- erts_smp_atomic_set(&(PS)->woken, (long) 0)
-#define ERTS_POLLSET_IS_POLLER_WOKEN(PS) \
+
+#define ERTS_POLLSET_SET_POLLER_WOKEN_CHK(PS) set_poller_woken_chk((PS))
+#define ERTS_POLLSET_SET_POLLER_WOKEN(PS) \
+do { \
+ ERTS_THR_MEMORY_BARRIER; \
+ erts_smp_atomic_set(&(PS)->woken, (long) 1); \
+} while (0)
+#define ERTS_POLLSET_UNSET_POLLER_WOKEN(PS) \
+do { \
+ erts_smp_atomic_set(&(PS)->woken, (long) 0); \
+ ERTS_THR_MEMORY_BARRIER; \
+} while (0)
+#define ERTS_POLLSET_IS_POLLER_WOKEN(PS) \
((int) erts_smp_atomic_read(&(PS)->woken))
-#define ERTS_POLLSET_UNSET_INTERRUPTED_CHK(PS) \
- ((int) erts_smp_atomic_xchg(&(PS)->interrupt, (long) 0))
-#define ERTS_POLLSET_UNSET_INTERRUPTED(PS) \
- erts_smp_atomic_set(&(PS)->interrupt, (long) 0)
-#define ERTS_POLLSET_SET_INTERRUPTED(PS) \
- erts_smp_atomic_set(&(PS)->interrupt, (long) 1)
-#define ERTS_POLLSET_IS_INTERRUPTED(PS) \
+#define ERTS_POLLSET_UNSET_INTERRUPTED_CHK(PS) unset_interrupted_chk((PS))
+#define ERTS_POLLSET_UNSET_INTERRUPTED(PS) \
+do { \
+ erts_smp_atomic_set(&(PS)->interrupt, (long) 0); \
+ ERTS_THR_MEMORY_BARRIER; \
+} while (0)
+#define ERTS_POLLSET_SET_INTERRUPTED(PS) \
+do { \
+ ERTS_THR_MEMORY_BARRIER; \
+ erts_smp_atomic_set(&(PS)->interrupt, (long) 1); \
+} while (0)
+#define ERTS_POLLSET_IS_INTERRUPTED(PS) \
((int) erts_smp_atomic_read(&(PS)->interrupt))
+static ERTS_INLINE int
+unset_interrupted_chk(ErtsPollSet ps)
+{
+ int res = (int) erts_smp_atomic_xchg(&ps->interrupt, (long) 0);
+ ERTS_THR_MEMORY_BARRIER;
+ return res;
+
+}
+
+static ERTS_INLINE int
+set_poller_woken_chk(ErtsPollSet ps)
+{
+ ERTS_THR_MEMORY_BARRIER;
+ return (int) erts_smp_atomic_xchg(&ps->woken, (long) 1);
+}
+
#else
#define ERTS_POLLSET_LOCK(PS)
diff --git a/erts/emulator/sys/win32/sys.c b/erts/emulator/sys/win32/sys.c
index 65719a91d6..d3921a14f8 100644
--- a/erts/emulator/sys/win32/sys.c
+++ b/erts/emulator/sys/win32/sys.c
@@ -3010,12 +3010,6 @@ erts_sys_pre_init(void)
erts_sys_env_init();
}
-/*
- * the last two only used for standalone erlang
- * they should are used by sae_main in beam dll to
- * enable standalone execution via erl_api-routines
- */
-
void noinherit_std_handle(DWORD type)
{
HANDLE h = GetStdHandle(type);
diff --git a/erts/include/internal/ethread.h b/erts/include/internal/ethread.h
index 934a79c6f9..4e7a38cd5c 100644
--- a/erts/include/internal/ethread.h
+++ b/erts/include/internal/ethread.h
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 2004-2010. 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%
*/
@@ -375,6 +375,12 @@ ETHR_INLINE_FUNC_NAME_(ethr_mutex_unlock)(ethr_mutex *mtx)
#define ETHR_HAVE_OPTIMIZED_ATOMIC_OPS 1
#define ETHR_HAVE_OPTIMIZED_LOCKS 1
+#define ETHR_MEMORY_BARRIER \
+do { \
+ volatile LONG x___ = 0; \
+ (void) _InterlockedCompareExchange(&x___, (LONG) 1, (LONG) 0); \
+} while (0)
+
typedef struct {
volatile LONG value;
} ethr_atomic_t;
@@ -688,25 +694,33 @@ ETHR_INLINE_FUNC_NAME_(ethr_write_lock)(ethr_rwlock_t *lock)
#endif
/* For CPU-optimised atomics, spinlocks, and rwlocks. */
-#if !defined(ETHR_DISABLE_NATIVE_IMPLS) && defined(__GNUC__)
-# if ETHR_SIZEOF_PTR == 4
-# if defined(__i386__)
-# include "i386/ethread.h"
-# elif (defined(__powerpc__) || defined(__ppc__)) && !defined(__powerpc64__)
-# include "ppc32/ethread.h"
-# elif defined(__sparc__)
-# include "sparc32/ethread.h"
-# elif defined(__tile__)
-# include "tile/ethread.h"
+#if !defined(ETHR_DISABLE_NATIVE_IMPLS)
+# if defined(__GNUC__)
+# if defined(ETHR_PREFER_GCC_NATIVE_IMPLS)
+# include "gcc/ethread.h"
# endif
-# elif ETHR_SIZEOF_PTR == 8
-# if defined(__x86_64__)
-# include "x86_64/ethread.h"
-# elif defined(__sparc__) && defined(__arch64__)
-# include "sparc64/ethread.h"
+# ifndef ETHR_HAVE_NATIVE_ATOMICS
+# if ETHR_SIZEOF_PTR == 4
+# if defined(__i386__)
+# include "i386/ethread.h"
+# elif (defined(__powerpc__)||defined(__ppc__))&&!defined(__powerpc64__)
+# include "ppc32/ethread.h"
+# elif defined(__sparc__)
+# include "sparc32/ethread.h"
+# elif defined(__tile__)
+# include "tile/ethread.h"
+# endif
+# elif ETHR_SIZEOF_PTR == 8
+# if defined(__x86_64__)
+# include "x86_64/ethread.h"
+# elif defined(__sparc__) && defined(__arch64__)
+# include "sparc64/ethread.h"
+# endif
+# endif
+# include "gcc/ethread.h"
# endif
# endif
-#endif /* !defined(ETHR_DISABLE_NATIVE_IMPLS) && defined(__GNUC__) */
+#endif /* !defined(ETHR_DISABLE_NATIVE_IMPLS) */
#ifdef ETHR_HAVE_OPTIMIZED_ATOMIC_OPS
# undef ETHR_HAVE_NATIVE_ATOMICS
@@ -1124,8 +1138,14 @@ ETHR_INLINE_FUNC_NAME_(ethr_write_lock)(ethr_rwlock_t *lock)
*/
#ifndef ETHR_HAVE_OPTIMIZED_ATOMIC_OPS
-#define ETHR_ATOMIC_ADDR_BITS 4
-#define ETHR_ATOMIC_ADDR_SHIFT 3
+/*
+ * ETHR_MEMORY_BARRIER orders between locked and atomic accesses only,
+ * i.e. when this atomic fallback is used a noop is sufficient.
+ */
+#define ETHR_MEMORY_BARRIER
+
+#define ETHR_ATOMIC_ADDR_BITS 10
+#define ETHR_ATOMIC_ADDR_SHIFT 6
typedef struct {
union {
diff --git a/erts/include/internal/ethread_header_config.h.in b/erts/include/internal/ethread_header_config.h.in
index e5b4946a53..c9fd87c2f6 100644
--- a/erts/include/internal/ethread_header_config.h.in
+++ b/erts/include/internal/ethread_header_config.h.in
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 2004-2010. 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%
*/
@@ -50,6 +50,19 @@
/* Define if you have a pthread_rwlock implementation that can be used */
#undef ETHR_HAVE_PTHREAD_RWLOCK_INIT
+/* Define if you have the pthread_rwlockattr_setkind_np() function. */
+#undef ETHR_HAVE_PTHREAD_RWLOCKATTR_SETKIND_NP
+
+/* Define if you have the PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP rwlock
+ attribute. */
+#undef ETHR_HAVE_PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP
+
+/* Define if you have gcc atomic operations */
+#undef ETHR_HAVE_GCC_ATOMIC_OPS
+
+/* Define if you prefer gcc native ethread implementations */
+#undef ETHR_PREFER_GCC_NATIVE_IMPLS
+
/* Define if you want to turn on extra sanity checking in the ethread library */
#undef ETHR_XCHK
diff --git a/erts/include/internal/gcc/ethr_atomic.h b/erts/include/internal/gcc/ethr_atomic.h
new file mode 100644
index 0000000000..775030c8d5
--- /dev/null
+++ b/erts/include/internal/gcc/ethr_atomic.h
@@ -0,0 +1,164 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2010. 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: Native atomics ethread support using gcc's builtins
+ * Author: Rickard Green
+ */
+
+#ifndef ETHR_GCC_ATOMIC_H__
+#define ETHR_GCC_ATOMIC_H__
+
+#if !defined(ETHR_HAVE_NATIVE_ATOMICS) && defined(ETHR_HAVE_GCC_ATOMIC_OPS)
+#define ETHR_HAVE_NATIVE_ATOMICS 1
+
+#define ETHR_IMMED_ATOMIC_SET_GET_SAFE__ 0
+/* Enable immediate read/write on platforms where we know it is safe */
+#if defined(__i386__) || defined(__x86_64__) || defined(__sparc__) \
+ || defined(__powerpc__) || defined(__ppc__)
+# undef ETHR_IMMED_ATOMIC_SET_GET_SAFE__
+# define ETHR_IMMED_ATOMIC_SET_GET_SAFE__ 1
+#endif
+
+typedef struct {
+ volatile long counter;
+} ethr_native_atomic_t;
+
+
+/*
+ * According to the documentation this is what we want:
+ * #define ETHR_MEMORY_BARRIER __sync_synchronize()
+ * However, __sync_synchronize() is known to erroneously be
+ * a noop on at least some platforms with some gcc versions.
+ * This has suposedly been fixed in some gcc version, but we
+ * don't know from which version. Therefore, we use the
+ * workaround implemented below on all gcc versions.
+ */
+#define ETHR_MEMORY_BARRIER \
+do { \
+ volatile long x___ = 0; \
+ (void) __sync_val_compare_and_swap(&x___, (long) 0, (long) 1); \
+} while (0)
+
+#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_AUX_IMPL__)
+
+static ETHR_INLINE void
+ethr_native_atomic_set(ethr_native_atomic_t *var, long value)
+{
+#if ETHR_IMMED_ATOMIC_SET_GET_SAFE__
+ var->counter = value;
+#else
+ /*
+ * Unfortunately no __sync_store() or similar exist in the gcc atomic
+ * op interface. We therefore have to simulate it this way...
+ */
+ long act = 0, exp;
+ do {
+ exp = act;
+ act = __sync_val_compare_and_swap(&var->counter, exp, value);
+ } while (act != exp);
+#endif
+}
+
+#define ethr_native_atomic_init ethr_native_atomic_set
+
+static ETHR_INLINE long
+ethr_native_atomic_read(ethr_native_atomic_t *var)
+{
+#if ETHR_IMMED_ATOMIC_SET_GET_SAFE__
+ return var->counter;
+#else
+ /*
+ * Unfortunately no __sync_fetch() or similar exist in the gcc atomic
+ * op interface. We therefore have to simulate it this way...
+ */
+ return __sync_add_and_fetch(&var->counter, (long) 0);
+#endif
+}
+
+static ETHR_INLINE void
+ethr_native_atomic_add(ethr_native_atomic_t *var, long incr)
+{
+ (void) __sync_add_and_fetch(&var->counter, incr);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_add_return(ethr_native_atomic_t *var, long incr)
+{
+ return __sync_add_and_fetch(&var->counter, incr);
+}
+
+static ETHR_INLINE void
+ethr_native_atomic_inc(ethr_native_atomic_t *var)
+{
+ (void) __sync_add_and_fetch(&var->counter, (long) 1);
+}
+
+static ETHR_INLINE void
+ethr_native_atomic_dec(ethr_native_atomic_t *var)
+{
+ (void) __sync_sub_and_fetch(&var->counter, (long) 1);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_inc_return(ethr_native_atomic_t *var)
+{
+ return __sync_add_and_fetch(&var->counter, (long) 1);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_dec_return(ethr_native_atomic_t *var)
+{
+ return __sync_sub_and_fetch(&var->counter, (long) 1);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_and_retold(ethr_native_atomic_t *var, long mask)
+{
+ return __sync_fetch_and_and(&var->counter, mask);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_or_retold(ethr_native_atomic_t *var, long mask)
+{
+ return (long) __sync_fetch_and_or(&var->counter, mask);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_cmpxchg(ethr_native_atomic_t *var, long new, long old)
+{
+ return __sync_val_compare_and_swap(&var->counter, old, new);
+}
+
+static ETHR_INLINE long
+ethr_native_atomic_xchg(ethr_native_atomic_t *var, long new)
+{
+ long exp, act = 0;
+ do {
+ exp = act;
+ act = __sync_val_compare_and_swap(&var->counter, exp, new);
+ } while (act != exp);
+ return act;
+}
+
+#endif
+
+#endif
+
+#endif
diff --git a/erts/include/internal/gcc/ethread.h b/erts/include/internal/gcc/ethread.h
new file mode 100644
index 0000000000..bb378e31e0
--- /dev/null
+++ b/erts/include/internal/gcc/ethread.h
@@ -0,0 +1,30 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2010. 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: Native atomic ethread support when using gcc
+ * Author: Rickard Green
+ */
+
+#ifndef ETHREAD_GCC_H__
+#define ETHREAD_GCC_H__
+
+#include "ethr_atomic.h"
+
+#endif
diff --git a/erts/include/internal/i386/atomic.h b/erts/include/internal/i386/atomic.h
index 3291ad38e5..90b4c5f773 100644
--- a/erts/include/internal/i386/atomic.h
+++ b/erts/include/internal/i386/atomic.h
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 2005-2010. 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%
*/
@@ -32,6 +32,16 @@ typedef struct {
volatile long counter;
} ethr_native_atomic_t;
+#ifdef __x86_64__
+#define ETHR_MEMORY_BARRIER __asm__ __volatile__("mfence" : : : "memory")
+#else
+#define ETHR_MEMORY_BARRIER \
+do { \
+ volatile long x___ = 0; \
+ __asm__ __volatile__("lock; incl %0" : "=m"(x___) : "m"(x___) : "memory"); \
+} while (0)
+#endif
+
#ifdef ETHR_TRY_INLINE_FUNCS
#ifdef __x86_64__
diff --git a/erts/include/internal/ppc32/atomic.h b/erts/include/internal/ppc32/atomic.h
index fa701c6a92..105d874995 100644
--- a/erts/include/internal/ppc32/atomic.h
+++ b/erts/include/internal/ppc32/atomic.h
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 2005-2010. 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%
*/
@@ -32,6 +32,7 @@ typedef struct {
volatile int counter;
} ethr_native_atomic_t;
+#define ETHR_MEMORY_BARRIER __asm__ __volatile__("sync" : : : "memory")
#ifdef ETHR_TRY_INLINE_FUNCS
diff --git a/erts/include/internal/sparc32/atomic.h b/erts/include/internal/sparc32/atomic.h
index d6fdc6b2a4..8fde449a52 100644
--- a/erts/include/internal/sparc32/atomic.h
+++ b/erts/include/internal/sparc32/atomic.h
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 2005-2010. 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%
*/
@@ -28,6 +28,10 @@ typedef struct {
volatile long counter;
} ethr_native_atomic_t;
+#define ETHR_MEMORY_BARRIER \
+ __asm__ __volatile__("membar #LoadLoad|#LoadStore|#StoreLoad|#StoreStore\n" \
+ : : : "memory")
+
#ifdef ETHR_TRY_INLINE_FUNCS
#if defined(__arch64__)
diff --git a/erts/include/internal/tile/atomic.h b/erts/include/internal/tile/atomic.h
index 59a9250e7c..5e4c7ac9fe 100644
--- a/erts/include/internal/tile/atomic.h
+++ b/erts/include/internal/tile/atomic.h
@@ -32,6 +32,8 @@ typedef struct {
volatile long counter;
} ethr_native_atomic_t;
+#define ETHR_MEMORY_BARRIER __insn_mf()
+
#ifdef ETHR_TRY_INLINE_FUNCS
static ETHR_INLINE void
diff --git a/erts/lib_src/Makefile.in b/erts/lib_src/Makefile.in
index 49f5b1f048..e7caac8072 100644
--- a/erts/lib_src/Makefile.in
+++ b/erts/lib_src/Makefile.in
@@ -447,7 +447,7 @@ INTERNAL_RELEASE_INCLUDES= \
$(ERTS_INCL_INT)/erl_misc_utils.h \
$(ERTS_INCL_INT)/erl_errno.h
-INTERNAL_X_RELEASE_INCLUDE_DIRS= i386 x86_64 ppc32 sparc32 sparc64 tile
+INTERNAL_X_RELEASE_INCLUDE_DIRS= i386 x86_64 ppc32 sparc32 sparc64 tile gcc
INTERNAL_RELEASE_LIBS= \
../lib/internal/README \
diff --git a/erts/lib_src/common/ethread.c b/erts/lib_src/common/ethread.c
index eb4d0cad20..9c88233934 100644
--- a/erts/lib_src/common/ethread.c
+++ b/erts/lib_src/common/ethread.c
@@ -1,19 +1,19 @@
/*
* %CopyrightBegin%
- *
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
- *
+ *
+ * Copyright Ericsson AB 2004-2010. 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%
*/
@@ -269,6 +269,11 @@ static ethr_mutex no_ethrs_mtx;
#warning "Cannot enforce fork-safety"
#endif
+#ifdef ETHR_HAVE_PTHREAD_RWLOCK_INIT
+static pthread_rwlockattr_t write_pref_attr_data;
+static pthread_rwlockattr_t *write_pref_attr;
+#endif
+
/*
* ----------------------------------------------------------------------------
* Static functions
@@ -525,6 +530,24 @@ ethr_init(ethr_init_data *id)
}
#endif
+#ifdef ETHR_HAVE_PTHREAD_RWLOCK_INIT
+#if defined(ETHR_HAVE_PTHREAD_RWLOCKATTR_SETKIND_NP) \
+ && defined(ETHR_HAVE_PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP)
+ res = pthread_rwlockattr_init(&write_pref_attr_data);
+ if (res != 0)
+ goto error;
+ res = pthread_rwlockattr_setkind_np(
+ &write_pref_attr_data,
+ PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP);
+ if (res != 0)
+ goto error;
+ write_pref_attr = &write_pref_attr_data;
+#else
+ write_pref_attr = NULL;
+#endif
+#endif
+
+
return 0;
error:
@@ -1060,7 +1083,7 @@ ethr_rwmutex_init(ethr_rwmutex *rwmtx)
}
rwmtx->initialized = ETHR_RWMUTEX_INITIALIZED;
#endif
- return pthread_rwlock_init(&rwmtx->pt_rwlock, NULL);
+ return pthread_rwlock_init(&rwmtx->pt_rwlock, write_pref_attr);
}
int
@@ -3193,7 +3216,7 @@ ethr_rwmutex_tryrlock(ethr_rwmutex *rwmtx)
res = ethr_mutex_trylock__(&rwmtx->mtx);
if (res != 0)
return res;
- if (!rwmtx->waiting_writers) {
+ if (rwmtx->waiting_writers) {
res = ethr_mutex_unlock__(&rwmtx->mtx);
if (res == 0)
return EBUSY;
diff --git a/lib/kernel/src/dist_util.erl b/lib/kernel/src/dist_util.erl
index a2937d60b8..f0d54a2f3e 100644
--- a/lib/kernel/src/dist_util.erl
+++ b/lib/kernel/src/dist_util.erl
@@ -1,19 +1,19 @@
%%
%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 1999-2009. All Rights Reserved.
-%%
+%%
+%% Copyright Ericsson AB 1999-2010. 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%
%%
%%%----------------------------------------------------------------------
@@ -564,7 +564,7 @@ recv_challenge(#hs_data{socket=Socket,other_node=Node,
case Recv(Socket, 0, infinity) of
{ok,[$n,V1,V0,Fl1,Fl2,Fl3,Fl4,CA3,CA2,CA1,CA0 | Ns]} ->
Flags = ?u32(Fl1,Fl2,Fl3,Fl4),
- case {list_to_existing_atom(Ns),?u16(V1,V0)} of
+ try {list_to_existing_atom(Ns),?u16(V1,V0)} of
{Node,Version} ->
Challenge = ?u32(CA3,CA2,CA1,CA0),
?trace("recv: node=~w, challenge=~w version=~w\n",
@@ -572,6 +572,9 @@ recv_challenge(#hs_data{socket=Socket,other_node=Node,
{Flags,Challenge};
_ ->
?shutdown(no_node)
+ catch
+ error:badarg ->
+ ?shutdown(no_node)
end;
_ ->
?shutdown(no_node)
diff --git a/lib/kernel/src/net_kernel.erl b/lib/kernel/src/net_kernel.erl
index 3afaedf274..dec353d6f2 100644
--- a/lib/kernel/src/net_kernel.erl
+++ b/lib/kernel/src/net_kernel.erl
@@ -1,19 +1,19 @@
%%
%% %CopyrightBegin%
-%%
-%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
-%%
+%%
+%% Copyright Ericsson AB 1996-2010. 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%
%%
-module(net_kernel).
@@ -72,7 +72,7 @@
-export([publish_on_node/1, update_publish_nodes/1]).
-%% Internal Exports
+%% Internal Exports
-export([do_spawn/3,
spawn_func/6,
ticker/2,
@@ -94,7 +94,7 @@
connecttime, %% the connection setuptime.
connections, %% table of connections
conn_owners = [], %% List of connection owner pids,
- pend_owners = [], %% List of potential owners
+ pend_owners = [], %% List of potential owners
listen, %% list of #listen
allowed, %% list of allowed nodes in a restricted system
verbose = 0, %% level of verboseness
@@ -232,7 +232,7 @@ do_connect(Node, Type, WaitForBarred) -> %% Type = normal | hidden
%% "connected from other end.~n",[Node]),
true;
{Pid, false} ->
- ?connect_failure(Node,{barred_connection,
+ ?connect_failure(Node,{barred_connection,
ets:lookup(sys_dist, Node)}),
%%io:format("Net Kernel: barred connection (~p) "
%% "- failure.~n",[Node]),
@@ -244,12 +244,12 @@ do_connect(Node, Type, WaitForBarred) -> %% Type = normal | hidden
{ok, never} ->
?connect_failure(Node,{dist_auto_connect,never}),
false;
- % This might happen due to connection close
+ % This might happen due to connection close
% not beeing propagated to user space yet.
- % Save the day by just not connecting...
+ % Save the day by just not connecting...
{ok, once} when Else =/= [],
(hd(Else))#connection.state =:= up ->
- ?connect_failure(Node,{barred_connection,
+ ?connect_failure(Node,{barred_connection,
ets:lookup(sys_dist, Node)}),
false;
_ ->
@@ -276,8 +276,8 @@ passive_connect_monitor(Parent, Node) ->
Parent ! {self(),true}
end
end.
-
-%% If the net_kernel isn't running we ignore all requests to the
+
+%% If the net_kernel isn't running we ignore all requests to the
%% kernel, thus basically accepting them :-)
request(Req) ->
case whereis(net_kernel) of
@@ -302,7 +302,7 @@ start_link([Name, LongOrShortNames]) ->
start_link([Name, LongOrShortNames, 15000]);
start_link([Name, LongOrShortNames, Ticktime]) ->
- case gen_server:start_link({local, net_kernel}, net_kernel,
+ case gen_server:start_link({local, net_kernel}, net_kernel,
{Name, LongOrShortNames, Ticktime}, []) of
{ok, Pid} ->
{ok, Pid};
@@ -313,7 +313,7 @@ start_link([Name, LongOrShortNames, Ticktime]) ->
end.
%% auth:get_cookie should only be able to return an atom
-%% tuple cookies are unknowns
+%% tuple cookies are unknowns
init({Name, LongOrShortNames, TickT}) ->
process_flag(trap_exit,true),
@@ -354,13 +354,13 @@ init({Name, LongOrShortNames, TickT}) ->
%% The response is delayed until the connection is up and
%% running.
%%
-handle_call({connect, _, Node}, _From, State) when Node =:= node() ->
- {reply, true, State};
+handle_call({connect, _, Node}, From, State) when Node =:= node() ->
+ async_reply({reply, true, State}, From);
handle_call({connect, Type, Node}, From, State) ->
verbose({connect, Type, Node}, 1, State),
case ets:lookup(sys_dist, Node) of
[Conn] when Conn#connection.state =:= up ->
- {reply, true, State};
+ async_reply({reply, true, State}, From);
[Conn] when Conn#connection.state =:= pending ->
Waiting = Conn#connection.waiting,
ets:insert(sys_dist, Conn#connection{waiting = [From|Waiting]}),
@@ -376,74 +376,75 @@ handle_call({connect, Type, Node}, From, State) ->
{noreply,State#state{conn_owners=Owners}};
_ ->
?connect_failure(Node, {setup_call, failed}),
- {reply, false, State}
+ async_reply({reply, false, State}, From)
end
end;
%%
%% Close the connection to Node.
%%
-handle_call({disconnect, Node}, _From, State) when Node =:= node() ->
- {reply, false, State};
-handle_call({disconnect, Node}, _From, State) ->
+handle_call({disconnect, Node}, From, State) when Node =:= node() ->
+ async_reply({reply, false, State}, From);
+handle_call({disconnect, Node}, From, State) ->
verbose({disconnect, Node}, 1, State),
{Reply, State1} = do_disconnect(Node, State),
- {reply, Reply, State1};
+ async_reply({reply, Reply, State1}, From);
-%%
+%%
%% The spawn/4 BIF ends up here.
-%%
+%%
handle_call({spawn,M,F,A,Gleader},{From,Tag},State) when is_pid(From) ->
do_spawn([no_link,{From,Tag},M,F,A,Gleader],[],State);
-%%
+%%
%% The spawn_link/4 BIF ends up here.
-%%
+%%
handle_call({spawn_link,M,F,A,Gleader},{From,Tag},State) when is_pid(From) ->
do_spawn([link,{From,Tag},M,F,A,Gleader],[],State);
-%%
+%%
%% The spawn_opt/5 BIF ends up here.
-%%
+%%
handle_call({spawn_opt,M,F,A,O,L,Gleader},{From,Tag},State) when is_pid(From) ->
do_spawn([L,{From,Tag},M,F,A,Gleader],O,State);
-%%
+%%
%% Only allow certain nodes.
-%%
-handle_call({allow, Nodes}, _From, State) ->
+%%
+handle_call({allow, Nodes}, From, State) ->
case all_atoms(Nodes) of
true ->
Allowed = State#state.allowed,
- {reply,ok,State#state{allowed = Allowed ++ Nodes}};
+ async_reply({reply,ok,State#state{allowed = Allowed ++ Nodes}},
+ From);
false ->
- {reply,error,State}
+ async_reply({reply,error,State}, From)
end;
-%%
+%%
%% authentication, used by auth. Simply works as this:
%% if the message comes through, the other node IS authorized.
-%%
-handle_call({is_auth, _Node}, _From, State) ->
- {reply,yes,State};
+%%
+handle_call({is_auth, _Node}, From, State) ->
+ async_reply({reply,yes,State}, From);
-%%
+%%
%% Not applicable any longer !?
-%%
-handle_call({apply,_Mod,_Fun,_Args}, {From,Tag}, State)
+%%
+handle_call({apply,_Mod,_Fun,_Args}, {From,Tag}, State)
when is_pid(From), node(From) =:= node() ->
- gen_server:reply({From,Tag}, not_implemented),
+ async_gen_server_reply({From,Tag}, not_implemented),
% Port = State#state.port,
% catch apply(Mod,Fun,[Port|Args]),
{noreply,State};
-handle_call(longnames, _From, State) ->
- {reply, get(longnames), State};
+handle_call(longnames, From, State) ->
+ async_reply({reply, get(longnames), State}, From);
-handle_call({update_publish_nodes, Ns}, _From, State) ->
- {reply, ok, State#state{publish_on_nodes = Ns}};
+handle_call({update_publish_nodes, Ns}, From, State) ->
+ async_reply({reply, ok, State#state{publish_on_nodes = Ns}}, From);
-handle_call({publish_on_node, Node}, _From, State) ->
+handle_call({publish_on_node, Node}, From, State) ->
NewState = case State#state.publish_on_nodes of
undefined ->
State#state{publish_on_nodes =
@@ -457,11 +458,12 @@ handle_call({publish_on_node, Node}, _From, State) ->
Nodes ->
lists:member(Node, Nodes)
end,
- {reply, Publish, NewState};
+ async_reply({reply, Publish, NewState}, From);
-handle_call({verbose, Level}, _From, State) ->
- {reply, State#state.verbose, State#state{verbose = Level}};
+handle_call({verbose, Level}, From, State) ->
+ async_reply({reply, State#state.verbose, State#state{verbose = Level}},
+ From);
%%
%% Set new ticktime
@@ -471,16 +473,16 @@ handle_call({verbose, Level}, _From, State) ->
%% #tick_change{} record if the ticker process has been upgraded;
%% otherwise, an integer or an atom.
-handle_call(ticktime, _, #state{tick = #tick{time = T}} = State) ->
- {reply, T, State};
-handle_call(ticktime, _, #state{tick = #tick_change{time = T}} = State) ->
- {reply, {ongoing_change_to, T}, State};
+handle_call(ticktime, From, #state{tick = #tick{time = T}} = State) ->
+ async_reply({reply, T, State}, From);
+handle_call(ticktime, From, #state{tick = #tick_change{time = T}} = State) ->
+ async_reply({reply, {ongoing_change_to, T}, State}, From);
-handle_call({new_ticktime,T,_TP}, _, #state{tick = #tick{time = T}} = State) ->
+handle_call({new_ticktime,T,_TP}, From, #state{tick = #tick{time = T}} = State) ->
?tckr_dbg(no_tick_change),
- {reply, unchanged, State};
+ async_reply({reply, unchanged, State}, From);
-handle_call({new_ticktime,T,TP}, _, #state{tick = #tick{ticker = Tckr,
+handle_call({new_ticktime,T,TP}, From, #state{tick = #tick{ticker = Tckr,
time = OT}} = State) ->
?tckr_dbg(initiating_tick_change),
start_aux_ticker(T, OT, TP),
@@ -493,14 +495,15 @@ handle_call({new_ticktime,T,TP}, _, #state{tick = #tick{ticker = Tckr,
?tckr_dbg(shorter_ticktime),
shorter
end,
- {reply, change_initiated, State#state{tick = #tick_change{ticker = Tckr,
- time = T,
- how = How}}};
+ async_reply({reply, change_initiated,
+ State#state{tick = #tick_change{ticker = Tckr,
+ time = T,
+ how = How}}}, From);
-handle_call({new_ticktime,_,_},
+handle_call({new_ticktime,From,_},
_,
#state{tick = #tick_change{time = T}} = State) ->
- {reply, {ongoing_change_to, T}, State}.
+ async_reply({reply, {ongoing_change_to, T}, State}, From).
%% ------------------------------------------------------------
%% handle_cast.
@@ -568,7 +571,7 @@ handle_info({accept,AcceptPid,Socket,Family,Proto}, State) ->
%%
%% A node has successfully been connected.
%%
-handle_info({SetupPid, {nodeup,Node,Address,Type,Immediate}},
+handle_info({SetupPid, {nodeup,Node,Address,Type,Immediate}},
State) ->
case {Immediate, ets:lookup(sys_dist, Node)} of
{true, [Conn]} when Conn#connection.state =:= pending,
@@ -656,7 +659,7 @@ handle_info({From,registered_send,To,Mess},State) ->
send(From,To,Mess),
{noreply,State};
-%% badcookies SHOULD not be sent
+%% badcookies SHOULD not be sent
%% (if someone does erlang:set_cookie(node(),foo) this may be)
handle_info({From,badcookie,_To,_Mess}, State) ->
error_logger:error_msg("~n** Got OLD cookie from ~w~n",
@@ -704,7 +707,7 @@ handle_info(X, State) ->
%% 4. The ticker process.
%% (5. Garbage pid.)
%%
-%% The process type function that handled the process throws
+%% The process type function that handled the process throws
%% the handle_info return value !
%% -----------------------------------------------------------
@@ -994,9 +997,9 @@ ticker(Kernel, Tick) when is_integer(Tick) ->
ticker_loop(Kernel, Tick).
to_integer(T) when is_integer(T) -> T;
-to_integer(T) when is_atom(T) ->
+to_integer(T) when is_atom(T) ->
list_to_integer(atom_to_list(T));
-to_integer(T) when is_list(T) ->
+to_integer(T) when is_list(T) ->
list_to_integer(T).
ticker_loop(Kernel, Tick) ->
@@ -1004,7 +1007,7 @@ ticker_loop(Kernel, Tick) ->
{new_ticktime, NewTick} ->
?tckr_dbg({ticker_changed_time, Tick, NewTick}),
?MODULE:ticker_loop(Kernel, NewTick)
- after Tick ->
+ after Tick ->
Kernel ! tick,
?MODULE:ticker_loop(Kernel, Tick)
end.
@@ -1052,7 +1055,7 @@ send(_From,To,Mess) ->
-ifdef(UNUSED).
safesend(Name,Mess) when is_atom(Name) ->
- case whereis(Name) of
+ case whereis(Name) of
undefined ->
Mess;
P when is_pid(P) ->
@@ -1063,11 +1066,12 @@ safesend(Pid, Mess) -> Pid ! Mess.
-endif.
do_spawn(SpawnFuncArgs, SpawnOpts, State) ->
+ [_,From|_] = SpawnFuncArgs,
case catch spawn_opt(?MODULE, spawn_func, SpawnFuncArgs, SpawnOpts) of
- {'EXIT', {Reason,_}} ->
- {reply, {'EXIT', {Reason,[]}}, State};
- {'EXIT', Reason} ->
- {reply, {'EXIT', {Reason,[]}}, State};
+ {'EXIT', {Reason,_}} ->
+ async_reply({reply, {'EXIT', {Reason,[]}}, State}, From);
+ {'EXIT', Reason} ->
+ async_reply({reply, {'EXIT', {Reason,[]}}, State}, From);
_ ->
{noreply,State}
end.
@@ -1079,11 +1083,11 @@ do_spawn(SpawnFuncArgs, SpawnOpts, State) ->
spawn_func(link,{From,Tag},M,F,A,Gleader) ->
link(From),
- gen_server:reply({From,Tag},self()), %% ahhh
+ async_gen_server_reply({From,Tag},self()), %% ahhh
group_leader(Gleader,self()),
apply(M,F,A);
spawn_func(_,{From,Tag},M,F,A,Gleader) ->
- gen_server:reply({From,Tag},self()), %% ahhh
+ async_gen_server_reply({From,Tag},self()), %% ahhh
group_leader(Gleader,self()),
apply(M,F,A).
@@ -1145,7 +1149,7 @@ get_proto_mod(Family,Protocol,[L|Ls]) ->
true ->
get_proto_mod(Family,Protocol,Ls)
end;
-get_proto_mod(_Family, _Protocol, []) ->
+get_proto_mod(_Family, _Protocol, []) ->
error.
%% -------- Initialisation functions ------------------------
@@ -1156,9 +1160,9 @@ init_node(Name, LongOrShortNames) ->
case create_name(Name, LongOrShortNames, 1) of
{ok,Node} ->
case start_protos(list_to_atom(NameWithoutHost),Node) of
- {ok, Ls} ->
+ {ok, Ls} ->
{ok, Node, Ls};
- Error ->
+ Error ->
Error
end;
Error ->
@@ -1167,9 +1171,9 @@ init_node(Name, LongOrShortNames) ->
%% Create the node name
create_name(Name, LongOrShortNames, Try) ->
- put(longnames, case LongOrShortNames of
- shortnames -> false;
- longnames -> true
+ put(longnames, case LongOrShortNames of
+ shortnames -> false;
+ longnames -> true
end),
{Head,Host1} = create_hostpart(Name, LongOrShortNames),
case Host1 of
@@ -1218,7 +1222,7 @@ create_hostpart(Name, LongOrShortNames) ->
{Head,Host1}.
%%
-%%
+%%
%%
protocol_childspecs() ->
case init:get_argument(proto_dist) of
@@ -1228,7 +1232,7 @@ protocol_childspecs() ->
protocol_childspecs(["inet_tcp"])
end.
-protocol_childspecs([]) ->
+protocol_childspecs([]) ->
[];
protocol_childspecs([H|T]) ->
Mod = list_to_atom(H ++ "_dist"),
@@ -1238,15 +1242,15 @@ protocol_childspecs([H|T]) ->
_ ->
protocol_childspecs(T)
end.
-
-
+
+
%%
%% epmd_module() -> module_name of erl_epmd or similar gen_server_module.
%%
epmd_module() ->
case init:get_argument(epmd_module) of
- {ok,[[Module]]} ->
+ {ok,[[Module]]} ->
Module;
_ ->
erl_epmd
@@ -1293,7 +1297,7 @@ start_protos(Name, [Proto | Ps], Node, Ls) ->
error_logger:info_msg("Protocol: ~p: not supported~n", [Proto]),
start_protos(Name,Ps, Node, Ls);
{'EXIT', Reason} ->
- error_logger:info_msg("Protocol: ~p: register error: ~p~n",
+ error_logger:info_msg("Protocol: ~p: register error: ~p~n",
[Proto, Reason]),
start_protos(Name,Ps, Node, Ls);
{error, duplicate_name} ->
@@ -1303,7 +1307,7 @@ start_protos(Name, [Proto | Ps], Node, Ls) ->
[Proto]),
start_protos(Name,Ps, Node, Ls);
{error, Reason} ->
- error_logger:info_msg("Protocol: ~p: register/listen error: ~p~n",
+ error_logger:info_msg("Protocol: ~p: register/listen error: ~p~n",
[Proto, Reason]),
start_protos(Name,Ps, Node, Ls)
end;
@@ -1409,7 +1413,7 @@ reply_waiting(_Node, Waiting, Rep) ->
reply_waiting1(lists:reverse(Waiting), Rep).
reply_waiting1([From|W], Rep) ->
- gen_server:reply(From, Rep),
+ async_gen_server_reply(From, Rep),
reply_waiting1(W, Rep);
reply_waiting1([], _) ->
ok.
@@ -1455,7 +1459,7 @@ display_info({Node, Info}, {I,O}) ->
integer_to_list(In), integer_to_list(Out), Address),
{I+In,O+Out}.
-fmt_address(undefined) ->
+fmt_address(undefined) ->
"-";
fmt_address(A) ->
case A#net_address.family of
@@ -1511,3 +1515,19 @@ verbose(_, _, _) ->
getnode(P) when is_pid(P) -> node(P);
getnode(P) -> P.
+
+async_reply({reply, Msg, State}, From) ->
+ async_gen_server_reply(From, Msg),
+ {noreply, State}.
+
+async_gen_server_reply(From, Msg) ->
+ {Pid, Tag} = From,
+ M = {Tag, Msg},
+ case catch erlang:send(Pid, M, [nosuspend, noconnect]) of
+ true ->
+ M;
+ false ->
+ spawn(fun() -> gen_server:reply(From, Msg) end);
+ EXIT ->
+ EXIT
+ end.
diff --git a/lib/tools/emacs/Makefile b/lib/tools/emacs/Makefile
index 0028df247c..8533488463 100644
--- a/lib/tools/emacs/Makefile
+++ b/lib/tools/emacs/Makefile
@@ -42,6 +42,7 @@ EMACS_FILES= \
erlang_appwiz \
erlang-start \
erlang-eunit \
+ erlang-flymake \
erlang
README_FILES= README
diff --git a/lib/tools/emacs/README b/lib/tools/emacs/README
index ca068d04c4..cc107dcd41 100644
--- a/lib/tools/emacs/README
+++ b/lib/tools/emacs/README
@@ -42,7 +42,14 @@ Files\erl-<Ver>:
(setq erlang-root-dir "C:/Program Files/erl<Ver>")
(setq exec-path (cons "C:/Program Files/erl<Ver>/bin" exec-path))
(require 'erlang-start)
-
+Miscellaneous addons
+--------------------
+
+In order to check erlang source code on the fly, add the following
+line to your .emacs file (after erlang-start, see above). See
+erlang-flymake.el for more information on how to customize the syntax
+check.
+ (require 'erlang-flymake)
diff --git a/lib/tools/emacs/erlang-flymake.el b/lib/tools/emacs/erlang-flymake.el
new file mode 100644
index 0000000000..bc368e9454
--- /dev/null
+++ b/lib/tools/emacs/erlang-flymake.el
@@ -0,0 +1,102 @@
+;; erlang-flymake.el
+;;
+;; Syntax check erlang source code on the fly (integrates with flymake).
+;;
+;; Start using flymake with erlang by putting the following somewhere
+;; in your .emacs file:
+;;
+;; (require 'erlang-flymake)
+;;
+;; Flymake is rather eager and does its syntax checks frequently by
+;; default and if you are bothered by this, you might want to put the
+;; following in your .emacs as well:
+;;
+;; (erlang-flymake-only-on-save)
+;;
+;; There are a couple of variables which control the compilation options:
+;; * erlang-flymake-get-code-path-dirs-function
+;; * erlang-flymake-get-include-dirs-function
+;; * erlang-flymake-extra-opts
+;;
+;; This code is inspired by http://www.emacswiki.org/emacs/FlymakeErlang.
+
+(require 'flymake)
+(eval-when-compile
+ (require 'cl))
+
+(defvar erlang-flymake-command
+ "erlc"
+ "The command that will be used to perform the syntax check")
+
+(defvar erlang-flymake-get-code-path-dirs-function
+ 'erlang-flymake-get-code-path-dirs
+ "Return a list of ebin directories to add to the code path.")
+
+(defvar erlang-flymake-get-include-dirs-function
+ 'erlang-flymake-get-include-dirs
+ "Return a list of include directories to add to the compiler options.")
+
+(defvar erlang-flymake-extra-opts
+ (list "+warn_obsolete_guard"
+ "+warn_unused_import"
+ "+warn_shadow_vars"
+ "+warn_export_vars"
+ "+strong_validation"
+ "+report")
+ "A list of options that will be passed to the compiler")
+
+(defun erlang-flymake-only-on-save ()
+ "Trigger flymake only when the buffer is saved (disables syntax
+check on newline and when there are no changes)."
+ (interactive)
+ ;; There doesn't seem to be a way of disabling this; set to the
+ ;; largest int available as a workaround (most-positive-fixnum
+ ;; equates to 8.5 years on my machine, so it ought to be enough ;-) )
+ (setq flymake-no-changes-timeout most-positive-fixnum)
+ (setq flymake-start-syntax-check-on-newline nil))
+
+
+(defun erlang-flymake-get-code-path-dirs ()
+ (list (concat (erlang-flymake-get-app-dir) "ebin")))
+
+(defun erlang-flymake-get-include-dirs ()
+ (list (concat (erlang-flymake-get-app-dir) "include")))
+
+(defun erlang-flymake-get-app-dir ()
+ (let ((src-path (file-name-directory (buffer-file-name))))
+ (file-name-directory (directory-file-name src-path))))
+
+(defun erlang-flymake-init ()
+ (let* ((temp-file
+ (flet ((flymake-get-temp-dir () (erlang-flymake-temp-dir)))
+ (flymake-init-create-temp-buffer-copy
+ 'flymake-create-temp-with-folder-structure)))
+ (code-dir-opts
+ (erlang-flymake-flatten
+ (mapcar (lambda (dir) (list "-pa" dir))
+ (funcall erlang-flymake-get-code-path-dirs-function))))
+ (inc-dir-opts
+ (erlang-flymake-flatten
+ (mapcar (lambda (dir) (list "-I" dir))
+ (funcall erlang-flymake-get-include-dirs-function))))
+ (compile-opts
+ (append inc-dir-opts
+ code-dir-opts
+ erlang-flymake-extra-opts)))
+ (list erlang-flymake-command (append compile-opts (list temp-file)))))
+
+(defun erlang-flymake-temp-dir ()
+ ;; Squeeze the user's name in there in order to make sure that files
+ ;; for two users who are working on the same computer (like a linux
+ ;; box) don't collide
+ (format "%s/flymake-%s" temporary-file-directory user-login-name))
+
+(defun erlang-flymake-flatten (list)
+ (apply #'append list))
+
+(add-to-list 'flymake-allowed-file-name-masks
+ '("\\.erl\\'" erlang-flymake-init))
+(add-hook 'erlang-mode-hook 'flymake-mode)
+
+(provide 'erlang-flymake)
+;; erlang-flymake ends here
diff --git a/xcomp/erl-xcomp-mips-linux.conf b/xcomp/erl-xcomp-mips-linux.conf
new file mode 100644
index 0000000000..3ac057bb4c
--- /dev/null
+++ b/xcomp/erl-xcomp-mips-linux.conf
@@ -0,0 +1,258 @@
+## -*-shell-script-*-
+##
+## %CopyrightBegin%
+##
+## Copyright Ericsson AB 2010. 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%
+##
+## File: erl-xcomp-mips-linux.conf
+## Author: Matthias Lang
+##
+## -----------------------------------------------------------------------------
+## When cross compiling Erlang/OTP using `otp_build', copy this file and set
+## the variables needed below. Then pass the path to the copy of this file as
+## an argument to `otp_build' in the configure stage:
+## `otp_build configure --xcomp-conf=<FILE>'
+## -----------------------------------------------------------------------------
+
+## Note that you cannot define arbitrary variables in a cross compilation
+## configuration file. Only the ones listed below will be guaranteed to be
+## visible throughout the whole execution of all `configure' scripts. Other
+## variables needs to be defined as arguments to `configure' or exported in
+## the environment.
+
+## -- Variables for `otp_build' Only -------------------------------------------
+
+## Variables in this section are only used, when configuring Erlang/OTP for
+## cross compilation using `$ERL_TOP/otp_build configure'.
+
+## *NOTE*! These variables currently have *no* effect if you configure using
+## the `configure' script directly.
+
+# * `erl_xcomp_build' - The build system used. This value will be passed as
+# `--build=$erl_xcomp_build' argument to the `configure' script. It does
+# not have to be a full `CPU-VENDOR-OS' triplet, but can be. The full
+# `CPU-VENDOR-OS' triplet will be created by
+# `$ERL_TOP/erts/autoconf/config.sub $erl_xcomp_build'. If set to `guess',
+# the build system will be guessed using
+# `$ERL_TOP/erts/autoconf/config.guess'.
+erl_xcomp_build=guess
+
+# * `erl_xcomp_host' - Cross host/target system to build for. This value will
+# be passed as `--host=$erl_xcomp_host' argument to the `configure' script.
+# It does not have to be a full `CPU-VENDOR-OS' triplet, but can be. The
+# full `CPU-VENDOR-OS' triplet will be created by
+# `$ERL_TOP/erts/autoconf/config.sub $erl_xcomp_host'.
+erl_xcomp_host=mips-linux
+
+# * `erl_xcomp_configure_flags' - Extra configure flags to pass to the
+# `configure' script.
+#erl_xcomp_configure_flags=
+
+## -- Cross Compiler and Other Tools -------------------------------------------
+
+## If the cross compilation tools are prefixed by `<HOST>-' you probably do
+## not need to set these variables (where `<HOST>' is what has been passed as
+## `--host=<HOST>' argument to `configure').
+
+## All variables in this section can also be used when native compiling.
+
+# * `CC' - C compiler.
+#CC=
+
+# * `CFLAGS' - C compiler flags.
+CFLAGS=-Os
+
+# * `STATIC_CFLAGS' - Static C compiler flags.
+#STATIC_CFLAGS=
+
+# * `CFLAG_RUNTIME_LIBRARY_PATH' - This flag should set runtime library
+# search path for the shared libraries. Note that this actually is a
+# linker flag, but it needs to be passed via the compiler.
+#CFLAG_RUNTIME_LIBRARY_PATH=
+
+# * `CPP' - C pre-processor.
+#CPP=
+
+# * `CPPFLAGS' - C pre-processor flags.
+#CPPFLAGS=
+
+# * `CXX' - C++ compiler.
+#CXX=
+
+# * `CXXFLAGS' - C++ compiler flags.
+#CXXFLAGS=
+
+# * `LD' - Linker.
+#LD=
+
+# * `LDFLAGS' - Linker flags.
+#LDFLAGS=
+
+# * `LIBS' - Libraries.
+#LIBS=
+
+## -- *D*ynamic *E*rlang *D*river Linking --
+
+## *NOTE*! Either set all or none of the `DED_LD*' variables.
+
+# * `DED_LD' - Linker for Dynamically loaded Erlang Drivers.
+#DED_LD=
+
+# * `DED_LDFLAGS' - Linker flags to use with `DED_LD'.
+#DED_LDFLAGS=
+
+# * `DED_LD_FLAG_RUNTIME_LIBRARY_PATH' - This flag should set runtime library
+# search path for shared libraries when linking with `DED_LD'.
+#DED_LD_FLAG_RUNTIME_LIBRARY_PATH=
+
+## -- Large File Support --
+
+## *NOTE*! Either set all or none of the `LFS_*' variables.
+
+# * `LFS_CFLAGS' - Large file support C compiler flags.
+#LFS_CFLAGS=
+
+# * `LFS_LDFLAGS' - Large file support linker flags.
+#LFS_LDFLAGS=
+
+# * `LFS_LIBS' - Large file support libraries.
+#LFS_LIBS=
+
+## -- Other Tools --
+
+# * `RANLIB' - `ranlib' archive index tool.
+#RANLIB=
+
+# * `AR' - `ar' archiving tool.
+#AR=
+
+# * `GETCONF' - `getconf' system configuration inspection tool. `getconf' is
+# currently used for finding out large file support flags to use, and
+# on Linux systems for finding out if we have an NPTL thread library or
+# not.
+#GETCONF=
+
+## -- Cross System Root Locations ----------------------------------------------
+
+# * `erl_xcomp_sysroot' - The absolute path to the system root of the cross
+# compilation environment. Currently, the `crypto', `odbc', `ssh' and
+# `ssl' applications need the system root. These applications will be
+# skipped if the system root has not been set. The system root might be
+# needed for other things too. If this is the case and the system root
+# has not been set, `configure' will fail and request you to set it.
+#erl_xcomp_sysroot=
+
+# * `erl_xcomp_isysroot' - The absolute path to the system root for includes
+# of the cross compilation environment. If not set, this value defaults
+# to `$erl_xcomp_sysroot', i.e., only set this value if the include system
+# root path is not the same as the system root path.
+#erl_xcomp_isysroot=
+
+## -- Optional Feature, and Bug Tests ------------------------------------------
+
+## These tests cannot (always) be done automatically when cross compiling. You
+## usually do not need to set these variables. Only set these if you really
+## know what you are doing.
+
+## Note that some of these values will override results of tests performed
+## by `configure', and some will not be used until `configure' is sure that
+## it cannot figure the result out.
+
+## The `configure' script will issue a warning when a default value is used.
+## When a variable has been set, no warning will be issued.
+
+# * `erl_xcomp_after_morecore_hook' - `yes|no'. Defaults to `no'. If `yes',
+# the target system must have a working `__after_morecore_hook' that can be
+# used for tracking used `malloc()' implementations core memory usage.
+# This is currently only used by unsupported features.
+#erl_xcomp_after_morecore_hook=
+
+# * `erl_xcomp_bigendian' - `yes|no'. No default. If `yes', the target system
+# must be big endian. If `no', little endian. This can often be
+# automatically detected, but not always. If not automatically detected,
+# `configure' will fail unless this variable is set. Since no default
+# value is used, `configure' will try to figure this out automatically.
+#erl_xcomp_bigendian=
+
+# * `erl_xcomp_clock_gettime_cpu_time' - `yes|no'. Defaults to `no'. If `yes',
+# the target system must have a working `clock_gettime()' implementation
+# that can be used for retrieving process CPU time.
+#erl_xcomp_clock_gettime_cpu_time=
+
+# * `erl_xcomp_getaddrinfo' - `yes|no'. Defaults to `no'. If `yes', the target
+# system must have a working `getaddrinfo()' implementation that can
+# handle both IPv4 and IPv6.
+#erl_xcomp_getaddrinfo=
+
+# * `erl_xcomp_gethrvtime_procfs_ioctl' - `yes|no'. Defaults to `no'. If `yes',
+# the target system must have a working `gethrvtime()' implementation and
+# is used with procfs `ioctl()'.
+#erl_xcomp_gethrvtime_procfs_ioctl=
+
+# * `erl_xcomp_dlsym_brk_wrappers' - `yes|no'. Defaults to `no'. If `yes', the
+# target system must have a working `dlsym(RTLD_NEXT, <S>)' implementation
+# that can be used on `brk' and `sbrk' symbols used by the `malloc()'
+# implementation in use, and by this track the `malloc()' implementations
+# core memory usage. This is currently only used by unsupported features.
+#erl_xcomp_dlsym_brk_wrappers=
+
+# * `erl_xcomp_kqueue' - `yes|no'. Defaults to `no'. If `yes', the target
+# system must have a working `kqueue()' implementation that returns a file
+# descriptor which can be used by `poll()' and/or `select()'. If `no' and
+# the target system has not got `epoll()' or `/dev/poll', the kernel-poll
+# feature will be disabled.
+#erl_xcomp_kqueue=
+
+# * `erl_xcomp_linux_clock_gettime_correction' - `yes|no'. Defaults to `yes' on
+# Linux; otherwise, `no'. If `yes', `clock_gettime(CLOCK_MONOTONIC, _)' on
+# the target system must work. This variable is recommended to be set to
+# `no' on Linux systems with kernel versions less than 2.6.
+#erl_xcomp_linux_clock_gettime_correction=
+
+# * `erl_xcomp_linux_nptl' - `yes|no'. Defaults to `yes' on Linux; otherwise,
+# `no'. If `yes', the target system must have NPTL (Native POSIX Thread
+# Library). Older Linux systems have LinuxThreads instead of NPTL (Linux
+# kernel versions typically less than 2.6).
+#erl_xcomp_linux_nptl=
+
+# * `erl_xcomp_linux_usable_sigaltstack' - `yes|no'. Defaults to `yes' on Linux;
+# otherwise, `no'. If `yes', `sigaltstack()' must be usable on the target
+# system. `sigaltstack()' on Linux kernel versions less than 2.4 are
+# broken.
+#erl_xcomp_linux_usable_sigaltstack=
+
+# * `erl_xcomp_linux_usable_sigusrx' - `yes|no'. Defaults to `yes'. If `yes',
+# the `SIGUSR1' and `SIGUSR2' signals must be usable by the ERTS. Old
+# LinuxThreads thread libraries (Linux kernel versions typically less than
+# 2.2) used these signals and made them unusable by the ERTS.
+#erl_xcomp_linux_usable_sigusrx=
+
+# * `erl_xcomp_poll' - `yes|no'. Defaults to `no' on Darwin/MacOSX; otherwise,
+# `yes'. If `yes', the target system must have a working `poll()'
+# implementation that also can handle devices. If `no', `select()' will be
+# used instead of `poll()'.
+#erl_xcomp_poll=
+
+# * `erl_xcomp_putenv_copy' - `yes|no'. Defaults to `no'. If `yes', the target
+# system must have a `putenv()' implementation that stores a copy of the
+# key/value pair.
+#erl_xcomp_putenv_copy=
+
+# * `erl_xcomp_reliable_fpe' - `yes|no'. Defaults to `no'. If `yes', the target
+# system must have reliable floating point exceptions.
+#erl_xcomp_reliable_fpe=
+
+## -----------------------------------------------------------------------------