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-rw-r--r--erts/emulator/beam/beam_debug.c325
1 files changed, 221 insertions, 104 deletions
diff --git a/erts/emulator/beam/beam_debug.c b/erts/emulator/beam/beam_debug.c
index a2060c80de..9633de2021 100644
--- a/erts/emulator/beam/beam_debug.c
+++ b/erts/emulator/beam/beam_debug.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1998-2017. All Rights Reserved.
+ * Copyright Ericsson AB 1998-2018. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -40,6 +40,7 @@
#include "erl_binary.h"
#include "erl_thr_progress.h"
#include "erl_nfunc_sched.h"
+#include "beam_catches.h"
#ifdef ARCH_64
# define HEXF "%016bpX"
@@ -53,6 +54,9 @@ void dbg_where(BeamInstr* addr, Eterm x0, Eterm* reg);
static int print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr);
static void print_bif_name(fmtfn_t to, void* to_arg, BifFunction bif);
+static BeamInstr* f_to_addr(BeamInstr* base, int op, BeamInstr* ap);
+static BeamInstr* f_to_addr_packed(BeamInstr* base, int op, Sint32* ap);
+static void print_byte_string(fmtfn_t to, void *to_arg, byte* str, Uint bytes);
BIF_RETTYPE
erts_debug_same_2(BIF_ALIST_2)
@@ -157,8 +161,8 @@ erts_debug_breakpoint_2(BIF_ALIST_2)
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_proc_unlock(p, ERTS_PROC_LOCK_MAIN);
+ erts_thr_progress_block();
erts_bp_match_functions(&f, &mfa, specified);
if (boolean == am_true) {
@@ -174,8 +178,8 @@ erts_debug_breakpoint_2(BIF_ALIST_2)
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_thr_progress_unblock();
+ erts_proc_lock(p, ERTS_PROC_LOCK_MAIN);
erts_release_code_write_permission();
return res;
@@ -197,9 +201,9 @@ void debug_dump_code(BeamInstr *I, int num)
erts_print(ERTS_PRINT_DSBUF, (void *) dsbufp, HEXF ": ", code_ptr);
instr = (BeamInstr) code_ptr[0];
for (i = 0; i < NUM_SPECIFIC_OPS; i++) {
- if (instr == (BeamInstr) BeamOp(i) && opc[i].name[0] != '\0') {
+ if (BeamIsOpCode(instr, i) && opc[i].name[0] != '\0') {
code_ptr += print_op(ERTS_PRINT_DSBUF, (void *) dsbufp,
- i, opc[i].sz-1, code_ptr+1) + 1;
+ i, opc[i].sz-1, code_ptr) + 1;
break;
}
}
@@ -224,11 +228,11 @@ erts_debug_instructions_0(BIF_ALIST_0)
Eterm res = NIL;
for (i = 0; i < num_instructions; i++) {
- needed += 2*strlen(opc[i].name);
+ needed += 2*sys_strlen(opc[i].name);
}
hp = HAlloc(BIF_P, needed);
for (i = num_instructions-1; i >= 0; i--) {
- Eterm s = erts_bld_string_n(&hp, 0, opc[i].name, strlen(opc[i].name));
+ Eterm s = erts_bld_string_n(&hp, 0, opc[i].name, sys_strlen(opc[i].name));
res = erts_bld_cons(&hp, 0, s, res);
}
return res;
@@ -317,9 +321,9 @@ erts_debug_disassemble_1(BIF_ALIST_1)
erts_print(ERTS_PRINT_DSBUF, (void *) dsbufp, HEXF ": ", code_ptr);
instr = (BeamInstr) code_ptr[0];
for (i = 0; i < NUM_SPECIFIC_OPS; i++) {
- if (instr == (BeamInstr) BeamOp(i) && opc[i].name[0] != '\0') {
+ if (BeamIsOpCode(instr, i) && opc[i].name[0] != '\0') {
code_ptr += print_op(ERTS_PRINT_DSBUF, (void *) dsbufp,
- i, opc[i].sz-1, code_ptr+1) + 1;
+ i, opc[i].sz-1, code_ptr) + 1;
break;
}
}
@@ -394,6 +398,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
BeamInstr args[8]; /* Arguments for this instruction. */
BeamInstr* ap; /* Pointer to arguments. */
BeamInstr* unpacked; /* Unpacked arguments */
+ BeamInstr* first_arg; /* First argument */
start_prog = opc[op].pack;
@@ -403,8 +408,14 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
* Avoid copying because instructions containing bignum operands
* are bigger than actually declared.
*/
- ap = (BeamInstr *) addr;
+ addr++;
+ ap = addr;
} else {
+#if defined(ARCH_64) && defined(CODE_MODEL_SMALL)
+ BeamInstr instr_word = addr[0];
+#endif
+ addr++;
+
/*
* Copy all arguments to a local buffer for the unpacking.
*/
@@ -420,30 +431,31 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
* the packing program backwards and in reverse.
*/
- prog = start_prog + strlen(start_prog);
+ prog = start_prog + sys_strlen(start_prog);
while (start_prog < prog) {
prog--;
switch (*prog) {
+ case 'f':
case 'g':
+ case 'q':
*ap++ = *--sp;
break;
- case 'i': /* Initialize packing accumulator. */
- *ap++ = packed;
- break;
- case 's':
- *ap++ = packed & 0x3ff;
- packed >>= 10;
+#ifdef ARCH_64
+ case '1': /* Tightest shift */
+ *ap++ = (packed & BEAM_TIGHTEST_MASK) << 3;
+ packed >>= BEAM_TIGHTEST_SHIFT;
break;
- case '0': /* Tight shift */
+#endif
+ case '2': /* Tight shift */
*ap++ = packed & BEAM_TIGHT_MASK;
packed >>= BEAM_TIGHT_SHIFT;
break;
- case '6': /* Shift 16 steps */
+ case '3': /* Loose shift */
*ap++ = packed & BEAM_LOOSE_MASK;
packed >>= BEAM_LOOSE_SHIFT;
break;
#ifdef ARCH_64
- case 'w': /* Shift 32 steps */
+ case '4': /* Shift 32 steps */
*ap++ = packed & BEAM_WIDE_MASK;
packed >>= BEAM_WIDE_SHIFT;
break;
@@ -454,13 +466,25 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
case 'P':
packed = *--sp;
break;
+#if defined(ARCH_64) && defined(CODE_MODEL_SMALL)
+ case '#': /* -1 */
+ case '$': /* -2 */
+ case '%': /* -3 */
+ case '&': /* -4 */
+ case '\'': /* -5 */
+ case '(': /* -6 */
+ packed = (packed << BEAM_WIDE_SHIFT) | BeamExtraData(instr_word);
+ break;
+#endif
default:
- ASSERT(0);
+ erts_exit(ERTS_ERROR_EXIT, "beam_debug: invalid packing op: %c\n", *prog);
}
}
ap = args;
}
+ first_arg = ap;
+
/*
* Print the name and all operands of the instructions.
*/
@@ -489,6 +513,14 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
case 'n': /* Nil */
erts_print(to, to_arg, "[]");
break;
+ case 'S': /* Register */
+ {
+ Uint reg_type = (*ap & 1) ? 'y' : 'x';
+ Uint n = ap[0] / sizeof(Eterm);
+ erts_print(to, to_arg, "%c(%d)", reg_type, n);
+ ap++;
+ break;
+ }
case 's': /* Any source (tagged constant or register) */
tag = loader_tag(*ap);
if (tag == LOADER_X_REG) {
@@ -522,12 +554,13 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
}
ap++;
break;
- case 'I': /* Untagged integer. */
- case 't':
+ case 't': /* Untagged integers */
+ case 'I':
+ case 'W':
switch (op) {
- case op_i_gc_bif1_jIsId:
- case op_i_gc_bif2_jIIssd:
- case op_i_gc_bif3_jIIssd:
+ case op_i_gc_bif1_jWstd:
+ case op_i_gc_bif2_jWtssd:
+ case op_i_gc_bif3_jWtssd:
{
const ErtsGcBif* p;
BifFunction gcf = (BifFunction) *ap;
@@ -542,37 +575,74 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
}
break;
}
+ case op_i_make_fun_Wt:
+ if (*sign == 'W') {
+ ErlFunEntry* fe = (ErlFunEntry *) *ap;
+ ErtsCodeMFA* cmfa = find_function_from_pc(fe->address);
+ erts_print(to, to_arg, "%T:%T/%bpu", cmfa->module,
+ cmfa->function, cmfa->arity);
+ } else {
+ erts_print(to, to_arg, "%d", *ap);
+ }
+ break;
+ case op_i_bs_match_string_xfWW:
+ if (ap - first_arg < 3) {
+ erts_print(to, to_arg, "%d", *ap);
+ } else {
+ Uint bits = ap[-1];
+ Uint bytes = (bits+7)/8;
+ byte* str = (byte *) *ap;
+ print_byte_string(to, to_arg, str, bytes);
+ }
+ break;
+ case op_bs_put_string_WW:
+ if (ap - first_arg == 0) {
+ erts_print(to, to_arg, "%d", *ap);
+ } else {
+ Uint bytes = ap[-1];
+ byte* str = (byte *) ap[0];
+ print_byte_string(to, to_arg, str, bytes);
+ }
+ break;
default:
erts_print(to, to_arg, "%d", *ap);
}
ap++;
break;
case 'f': /* Destination label */
- {
- ErtsCodeMFA* cmfa = find_function_from_pc((BeamInstr *)*ap);
- if (!cmfa || erts_codemfa_to_code(cmfa) != (BeamInstr *) *ap) {
- erts_print(to, to_arg, "f(" HEXF ")", *ap);
- } else {
- erts_print(to, to_arg, "%T:%T/%bpu", cmfa->module,
- cmfa->function, cmfa->arity);
- }
- ap++;
- }
- break;
+ switch (op) {
+ case op_catch_yf:
+ erts_print(to, to_arg, "f(" HEXF ")", catch_pc((BeamInstr)*ap));
+ break;
+ default:
+ {
+ BeamInstr* target = f_to_addr(addr, op, ap);
+ ErtsCodeMFA* cmfa = find_function_from_pc(target);
+ if (!cmfa || erts_codemfa_to_code(cmfa) != target) {
+ erts_print(to, to_arg, "f(" HEXF ")", target);
+ } else {
+ erts_print(to, to_arg, "%T:%T/%bpu", cmfa->module,
+ cmfa->function, cmfa->arity);
+ }
+ ap++;
+ }
+ break;
+ }
+ break;
case 'p': /* Pointer (to label) */
{
- ErtsCodeMFA* cmfa = find_function_from_pc((BeamInstr *)*ap);
- if (!cmfa || erts_codemfa_to_code(cmfa) != (BeamInstr *) *ap) {
- erts_print(to, to_arg, "p(" HEXF ")", *ap);
- } else {
- erts_print(to, to_arg, "%T:%T/%bpu", cmfa->module,
- cmfa->function, cmfa->arity);
- }
+ BeamInstr* target = f_to_addr(addr, op, ap);
+ erts_print(to, to_arg, "p(" HEXF ")", target);
ap++;
}
break;
case 'j': /* Pointer (to label) */
- erts_print(to, to_arg, "j(" HEXF ")", *ap);
+ if (*ap == 0) {
+ erts_print(to, to_arg, "j(0)");
+ } else {
+ BeamInstr* target = f_to_addr(addr, op, ap);
+ erts_print(to, to_arg, "j(" HEXF ")", target);
+ }
ap++;
break;
case 'e': /* Export entry */
@@ -597,7 +667,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
ap++;
break;
case 'l': /* fr(N) */
- erts_print(to, to_arg, "fr(%d)", loader_reg_index(ap[0]));
+ erts_print(to, to_arg, "fr(%d)", ap[0] / sizeof(FloatDef));
ap++;
break;
default:
@@ -615,12 +685,22 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
unpacked = ap;
ap = addr + size;
+
+ /*
+ * In the code below, never use ap[-1], ap[-2], ...
+ * (will not work if the arguments have been packed).
+ *
+ * Instead use unpacked[-1], unpacked[-2], ...
+ */
switch (op) {
case op_i_select_val_lins_xfI:
case op_i_select_val_lins_yfI:
+ case op_i_select_val_bins_xfI:
+ case op_i_select_val_bins_yfI:
{
- int n = ap[-1];
+ int n = unpacked[-1];
int ix = n;
+ Sint32* jump_tab = (Sint32 *)(ap + n);
while (ix--) {
erts_print(to, to_arg, "%T ", (Eterm) ap[0]);
@@ -629,30 +709,19 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
}
ix = n;
while (ix--) {
- erts_print(to, to_arg, "f(" HEXF ") ", (Eterm) ap[0]);
- ap++;
- size++;
- }
- }
- break;
- case op_i_select_val_bins_xfI:
- case op_i_select_val_bins_yfI:
- {
- int n = ap[-1];
-
- while (n > 0) {
- erts_print(to, to_arg, "%T f(" HEXF ") ", (Eterm) ap[0], ap[1]);
- ap += 2;
- size += 2;
- n--;
+ BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
+ erts_print(to, to_arg, "f(" HEXF ") ", target);
+ jump_tab++;
}
+ size += (n+1) / 2;
}
break;
case op_i_select_tuple_arity_xfI:
case op_i_select_tuple_arity_yfI:
{
- int n = ap[-1];
+ int n = unpacked[-1];
int ix = n - 1; /* without sentinel */
+ Sint32* jump_tab = (Sint32 *)(ap + n);
while (ix--) {
Uint arity = arityval(ap[0]);
@@ -666,39 +735,62 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
size++;
ix = n;
while (ix--) {
- erts_print(to, to_arg, "f(" HEXF ") ", ap[0]);
- ap++;
- size++;
+ BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
+ erts_print(to, to_arg, "f(" HEXF ") ", target);
+ jump_tab++;
+ }
+ size += (n+1) / 2;
+ }
+ break;
+ case op_i_select_val2_xfcc:
+ case op_i_select_val2_yfcc:
+ case op_i_select_tuple_arity2_xfAA:
+ case op_i_select_tuple_arity2_yfAA:
+ {
+ Sint32* jump_tab = (Sint32 *) ap;
+ BeamInstr* target;
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ target = f_to_addr_packed(addr, op, jump_tab++);
+ erts_print(to, to_arg, "f(" HEXF ") ", target);
}
+ size += 1;
}
break;
- case op_i_jump_on_val_xfII:
- case op_i_jump_on_val_yfII:
+ case op_i_jump_on_val_xfIW:
+ case op_i_jump_on_val_yfIW:
{
- int n;
- for (n = ap[-2]; n > 0; n--) {
- erts_print(to, to_arg, "f(" HEXF ") ", ap[0]);
- ap++;
- size++;
+ int n = unpacked[-2];
+ Sint32* jump_tab = (Sint32 *) ap;
+
+ size += (n+1) / 2;
+ while (n-- > 0) {
+ BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
+ erts_print(to, to_arg, "f(" HEXF ") ", target);
+ jump_tab++;
}
}
break;
case op_i_jump_on_val_zero_xfI:
case op_i_jump_on_val_zero_yfI:
{
- int n;
- for (n = ap[-1]; n > 0; n--) {
- erts_print(to, to_arg, "f(" HEXF ") ", ap[0]);
- ap++;
- size++;
+ int n = unpacked[-1];
+ Sint32* jump_tab = (Sint32 *) ap;
+
+ size += (n+1) / 2;
+ while (n-- > 0) {
+ BeamInstr* target = f_to_addr_packed(addr, op, jump_tab);
+ erts_print(to, to_arg, "f(" HEXF ") ", target);
+ jump_tab++;
}
}
break;
case op_i_put_tuple_xI:
case op_i_put_tuple_yI:
- case op_new_map_dII:
- case op_update_map_assoc_jsdII:
- case op_update_map_exact_jsdII:
+ case op_new_map_dtI:
+ case op_update_map_assoc_sdtI:
+ case op_update_map_exact_jsdtI:
{
int n = unpacked[-1];
@@ -708,7 +800,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
erts_print(to, to_arg, " x(%d)", loader_x_reg_index(ap[0]));
break;
case LOADER_Y_REG:
- erts_print(to, to_arg, " x(%d)", loader_y_reg_index(ap[0]));
+ erts_print(to, to_arg, " y(%d)", loader_y_reg_index(ap[0]) - CP_SIZE);
break;
default:
erts_print(to, to_arg, " %T", (Eterm) ap[0]);
@@ -718,6 +810,27 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
}
}
break;
+ case op_i_new_small_map_lit_dtq:
+ {
+ Eterm *tp = tuple_val(unpacked[-1]);
+ int n = arityval(*tp);
+
+ while (n > 0) {
+ switch (loader_tag(ap[0])) {
+ case LOADER_X_REG:
+ erts_print(to, to_arg, " x(%d)", loader_x_reg_index(ap[0]));
+ break;
+ case LOADER_Y_REG:
+ erts_print(to, to_arg, " y(%d)", loader_y_reg_index(ap[0]) - CP_SIZE);
+ break;
+ default:
+ erts_print(to, to_arg, " %T", (Eterm) ap[0]);
+ break;
+ }
+ ap++, size++, n--;
+ }
+ }
+ break;
case op_i_get_map_elements_fsI:
{
int n = unpacked[-1];
@@ -731,7 +844,7 @@ print_op(fmtfn_t to, void *to_arg, int op, int size, BeamInstr* addr)
erts_print(to, to_arg, " x(%d)", loader_x_reg_index(ap[0]));
break;
case LOADER_Y_REG:
- erts_print(to, to_arg, " y(%d)", loader_y_reg_index(ap[0]));
+ erts_print(to, to_arg, " y(%d)", loader_y_reg_index(ap[0]) - CP_SIZE);
break;
default:
erts_print(to, to_arg, " %T", (Eterm) ap[0]);
@@ -766,6 +879,25 @@ static void print_bif_name(fmtfn_t to, void* to_arg, BifFunction bif)
}
}
+static BeamInstr* f_to_addr(BeamInstr* base, int op, BeamInstr* ap)
+{
+ return base - 1 + opc[op].adjust + (Sint32) *ap;
+}
+
+static BeamInstr* f_to_addr_packed(BeamInstr* base, int op, Sint32* ap)
+{
+ return base - 1 + opc[op].adjust + *ap;
+}
+
+static void print_byte_string(fmtfn_t to, void *to_arg, byte* str, Uint bytes)
+{
+ Uint i;
+
+ for (i = 0; i < bytes; i++) {
+ erts_print(to, to_arg, "%02X", str[i]);
+ }
+}
+
/*
* Dirty BIF testing.
*
@@ -774,10 +906,8 @@ static void print_bif_name(fmtfn_t to, void* to_arg, BifFunction bif)
* test suite.
*/
-#ifdef ERTS_DIRTY_SCHEDULERS
static int ms_wait(Process *c_p, Eterm etimeout, int busy);
static int dirty_send_message(Process *c_p, Eterm to, Eterm tag);
-#endif
static BIF_RETTYPE dirty_test(Process *c_p, Eterm type, Eterm arg1, Eterm arg2, UWord *I);
/*
@@ -806,7 +936,6 @@ erts_debug_dirty_io_2(BIF_ALIST_2)
BIF_RETTYPE
erts_debug_dirty_3(BIF_ALIST_3)
{
-#ifdef ERTS_DIRTY_SCHEDULERS
Eterm argv[2];
switch (BIF_ARG_1) {
case am_normal:
@@ -836,9 +965,6 @@ erts_debug_dirty_3(BIF_ALIST_3)
default:
BIF_ERROR(BIF_P, EXC_BADARG);
}
-#else
- BIF_ERROR(BIF_P, EXC_UNDEF);
-#endif
}
@@ -846,7 +972,6 @@ static BIF_RETTYPE
dirty_test(Process *c_p, Eterm type, Eterm arg1, Eterm arg2, UWord *I)
{
BIF_RETTYPE ret;
-#ifdef ERTS_DIRTY_SCHEDULERS
if (am_scheduler == arg1) {
ErtsSchedulerData *esdp;
if (arg2 != am_type)
@@ -1032,13 +1157,9 @@ dirty_test(Process *c_p, Eterm type, Eterm arg1, Eterm arg2, UWord *I)
badarg:
ERTS_BIF_PREP_ERROR(ret, c_p, BADARG);
}
-#else
- ERTS_BIF_PREP_ERROR(ret, c_p, EXC_UNDEF);
-#endif
return ret;
}
-#ifdef ERTS_DIRTY_SCHEDULERS
static int
dirty_send_message(Process *c_p, Eterm to, Eterm tag)
@@ -1070,12 +1191,13 @@ dirty_send_message(Process *c_p, Eterm to, Eterm tag)
mp = erts_alloc_message_heap(rp, &rp_locks, 3, &hp, &ohp);
msg = TUPLE2(hp, tag, c_p->common.id);
- erts_queue_message(rp, rp_locks, mp, msg, c_p->common.id);
+ ERL_MESSAGE_TOKEN(mp) = am_undefined;
+ erts_queue_proc_message(c_p, rp, rp_locks, mp, msg);
if (rp == real_c_p)
rp_locks &= ~c_p_locks;
if (rp_locks)
- erts_smp_proc_unlock(rp, rp_locks);
+ erts_proc_unlock(rp, rp_locks);
erts_proc_dec_refc(rp);
@@ -1125,13 +1247,8 @@ ms_wait(Process *c_p, Eterm etimeout, int busy)
return 1;
}
-#endif /* ERTS_DIRTY_SCHEDULERS */
-#ifdef ERTS_SMP
# define ERTS_STACK_LIMIT ((char *) ethr_get_stacklimit())
-#else
-# define ERTS_STACK_LIMIT ((char *) erts_scheduler_stack_limit)
-#endif
/*
* The below functions is for testing of the stack
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 23:21:31 +0000