aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam
diff options
context:
space:
mode:
Diffstat (limited to 'erts/emulator/beam')
-rw-r--r--erts/emulator/beam/beam_bp.c150
-rw-r--r--erts/emulator/beam/beam_bp.h108
-rw-r--r--erts/emulator/beam/beam_emu.c37
-rw-r--r--erts/emulator/beam/erl_nif.c3
4 files changed, 190 insertions, 108 deletions
diff --git a/erts/emulator/beam/beam_bp.c b/erts/emulator/beam/beam_bp.c
index 7b46f073c6..79d150c9e2 100644
--- a/erts/emulator/beam/beam_bp.c
+++ b/erts/emulator/beam/beam_bp.c
@@ -101,6 +101,9 @@ do { \
(b)->prev = (a); \
} while (0)
+
+
+
/* *************************************************************************
** Local prototypes
*/
@@ -127,7 +130,7 @@ static int clear_function_break(Module *modp, BeamInstr *pc,
BeamInstr break_op);
static BpData *is_break(BeamInstr *pc, BeamInstr break_op);
-static BpData *get_break(BeamInstr *pc, BeamInstr break_op);
+static BpData *get_break(Process *p, BeamInstr *pc, BeamInstr break_op);
/* bp_hash */
#define BP_TIME_ADD(pi0, pi1) \
@@ -296,9 +299,12 @@ BeamInstr
erts_trace_break(Process *p, BeamInstr *pc, Eterm *args,
Uint32 *ret_flags, Eterm *tracer_pid) {
Eterm tpid1, tpid2;
- BpDataTrace *bdt = (BpDataTrace *) pc[-4];
+ BpData **bds = (BpData **) (pc)[-4];
+ BpDataTrace *bdt = NULL;
+ 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);
@@ -317,7 +323,7 @@ erts_trace_break(Process *p, BeamInstr *pc, Eterm *args,
bdt->tracer_pid = tpid2;
ErtsSmpBPUnlock(bdt);
}
- pc[-4] = (BeamInstr) bdt;
+ bds[bp_sched2ix_proc(p)] = (BpData *) bdt;
return bdt->orig_instr;
}
@@ -329,12 +335,15 @@ erts_trace_break(Process *p, BeamInstr *pc, Eterm *args,
Uint32
erts_bif_mtrace(Process *p, BeamInstr *pc, Eterm *args, int local,
Eterm *tracer_pid) {
- BpDataTrace *bdt = (BpDataTrace *) pc[-4];
+ BpData **bds = (BpData **) (pc)[-4];
+ BpDataTrace *bdt = NULL;
+
ASSERT(tracer_pid);
- if (bdt) {
+ if (bds) {
Eterm tpid1, tpid2;
Uint32 flags;
+ bdt = (BpDataTrace *)bds[bp_sched2ix_proc(p)];
ErtsSmpBPLock(bdt);
tpid1 = tpid2 = bdt->tracer_pid;
@@ -520,7 +529,15 @@ erts_find_local_func(Eterm mfa[3]) {
}
/* bp_hash */
-
+ERTS_INLINE Uint bp_sched2ix() {
+#ifdef ERTS_SMP
+ ErtsSchedulerData *esdp;
+ esdp = erts_get_scheduler_data();
+ return esdp->no - 1;
+#else
+ return 0;
+#endif
+}
static void bp_hash_init(bp_time_hash_t *hash, Uint n) {
Uint size = sizeof(bp_data_time_item_t)*n;
Uint i;
@@ -528,7 +545,6 @@ static void bp_hash_init(bp_time_hash_t *hash, Uint n) {
hash->n = n;
hash->used = 0;
-
hash->item = (bp_data_time_item_t *)Alloc(size);
sys_memzero(hash->item, size);
@@ -654,7 +670,6 @@ static void bp_time_diff(bp_data_time_item_t *item, /* out */
void erts_schedule_time_break(Process *p, Uint schedule) {
Uint ms, s, us;
process_breakpoint_time_t *pbt = NULL;
- Uint ix = 0;
bp_data_time_item_t sitem, *item = NULL;
bp_time_hash_t *h = NULL;
BpDataTime *pbdt = NULL;
@@ -663,18 +678,7 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
pbt = ERTS_PROC_GET_CALL_TIME(p);
-#ifdef ERTS_SMP
- ix = p->scheduler_data->no - 1;
-#else
- ix = 0;
-#endif
-/*
- ASSERT( (p->status == P_RUNNING) ||
- (p->status == P_WAITING) ||
- (p->status == P_RUNABLE));
-*/
if (pbt) {
- get_sys_now(&ms,&s,&us);
switch(schedule) {
case ERTS_BP_CALL_TIME_SCHEDULE_EXITING :
@@ -685,13 +689,14 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
* the previous breakpoint.
*/
- pbdt = (BpDataTime *) get_break(pbt->pc, (Uint) BeamOp(op_i_time_breakpoint));
+ pbdt = (BpDataTime *) get_break(p, pbt->pc, (BeamInstr) BeamOp(op_i_time_breakpoint));
if (pbdt) {
+ get_sys_now(&ms,&s,&us);
bp_time_diff(&sitem, pbt, ms, s, us);
sitem.pid = p->id;
sitem.count = 0;
- h = &(pbdt->hash[ix]);
+ h = &(pbdt->hash[bp_sched2ix_proc(p)]);
ASSERT(h);
ASSERT(h->item);
@@ -709,6 +714,7 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
* timestamp it and remove the previous
* timestamp in the psd.
*/
+ get_sys_now(&ms,&s,&us);
pbt->ms = ms;
pbt->s = s;
pbt->us = us;
@@ -718,14 +724,6 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
/* will never happen */
break;
}
-#ifdef DEBUG
- } else {
- /* if pbt is null, then the process has just been spawned
- * and status should be runnable.
- */
- ASSERT( (p->status == P_RUNABLE) ||
- (p->status == P_WAITING));
-#endif
} /* pbt */
}
@@ -745,7 +743,6 @@ void erts_schedule_time_break(Process *p, Uint schedule) {
void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type) {
Uint ms,s,us;
process_breakpoint_time_t *pbt = NULL;
- int ix = 0;
bp_data_time_item_t sitem, *item = NULL;
bp_time_hash_t *h = NULL;
BpDataTime *pbdt = NULL;
@@ -759,12 +756,6 @@ void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type
pbt = ERTS_PROC_GET_CALL_TIME(p);
get_sys_now(&ms,&s,&us);
-#ifdef ERTS_SMP
- ix = p->scheduler_data->no - 1;
-#else
- ix = 0;
-#endif
-
switch(type) {
/* get pbt
* timestamp = t0
@@ -783,11 +774,11 @@ void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type
sitem.count = 0;
/* previous breakpoint */
- pbdt = (BpDataTime *) get_break(pbt->pc, (Uint) BeamOp(op_i_time_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[ix]);
+ h = &(pbdt->hash[bp_sched2ix_proc(p)]);
ASSERT(h);
ASSERT(h->item);
@@ -813,7 +804,7 @@ void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type
/* this breakpoint */
ASSERT(bdt);
- h = &(bdt->hash[ix]);
+ h = &(bdt->hash[bp_sched2ix_proc(p)]);
ASSERT(h);
ASSERT(h->item);
@@ -851,11 +842,11 @@ void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type
sitem.count = 0;
/* previous breakpoint */
- pbdt = (BpDataTime *) get_break(pbt->pc, (Uint) BeamOp(op_i_time_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[ix]);
+ h = &(pbdt->hash[bp_sched2ix_proc(p)]);
ASSERT(h);
ASSERT(h->item);
@@ -874,6 +865,10 @@ void erts_trace_time_break(Process *p, BeamInstr *pc, BpDataTime *bdt, Uint type
pbt->us = us;
}
break;
+ default :
+ ASSERT(0);
+ /* will never happen */
+ break;
}
}
@@ -946,8 +941,9 @@ static int set_module_break(Module *modp, Eterm mfa[3], int specified,
static int set_function_break(Module *modp, BeamInstr *pc,
Binary *match_spec, BeamInstr break_op,
enum erts_break_op count_op, Eterm tracer_pid) {
- BpData *bd, **r;
+ BpData *bd, **r, ***rs;
size_t size;
+ Uint ix = 0;
BeamInstr **code_base = (BeamInstr **)modp->code;
ASSERT(code_base);
@@ -1037,7 +1033,15 @@ static int set_function_break(Module *modp, BeamInstr *pc,
size = sizeof(BpDataDebug);
}
}
- r = (BpData **) (pc-4);
+ 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));
@@ -1058,12 +1062,12 @@ static int set_function_break(Module *modp, BeamInstr *pc,
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));
+ ASSERT(BpSingleton(*r));
/* Insert new bp first in the ring, i.e second to last. */
bd = Alloc(size);
BpInitAndSpliceNext(bd, *pc, *r);
*pc = break_op;
- } else if ((*r)->prev->orig_instr
+ } 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);
@@ -1077,6 +1081,10 @@ static int set_function_break(Module *modp, BeamInstr *pc,
*r = bd;
}
}
+ for (ix = 1; ix < erts_no_schedulers; ++ix) {
+ (*rs)[ix] = (*rs)[0];
+ }
+
bd->this_instr = break_op;
/* Init the bp type specific data */
if (break_op == (BeamInstr) BeamOp(op_i_trace_breakpoint) ||
@@ -1161,6 +1169,7 @@ static int clear_module_break(Module *m, Eterm mfa[3], int specified,
static int clear_function_break(Module *m, BeamInstr *pc, BeamInstr break_op) {
BpData *bd;
+ Uint ix = 0;
BeamInstr **code_base = (BeamInstr **)m->code;
ASSERT(code_base);
@@ -1178,8 +1187,17 @@ static int clear_function_break(Module *m, BeamInstr *pc, BeamInstr break_op) {
* but break_op may be 0 which matches any type.
*/
BeamInstr op;
- BpData **r = (BpData **) (pc-4);
+ 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) {
@@ -1195,8 +1213,9 @@ static int clear_function_break(Module *m, BeamInstr *pc, BeamInstr break_op) {
if (BpSingleton(bd)) {
ASSERT(*r == bd);
/* Only one breakpoint to remove */
- *r = NULL;
*pc = bd->orig_instr;
+ Free(*rs);
+ *rs = NULL;
} else {
BpData *bd_prev = bd->prev;
@@ -1256,7 +1275,12 @@ static int clear_function_break(Module *m, BeamInstr *pc, BeamInstr break_op) {
Free(bd);
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;
}
@@ -1272,7 +1296,16 @@ static int clear_function_break(Module *m, BeamInstr *pc, BeamInstr break_op) {
static BpData *is_break(BeamInstr *pc, BeamInstr break_op) {
ASSERT(pc[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
if (! erts_is_native_break(pc)) {
- BpData *bd = (BpData *) pc[-4];
+ BpData **rs = (BpData **) pc[-4];
+ BpData *bd = NULL, *ebd = NULL;
+
+ if (! rs) {
+ return NULL;
+ }
+
+ bd = ebd = rs[bp_sched2ix()];
+
+ ASSERT(bd);
if (break_op == 0) {
return bd;
@@ -1285,7 +1318,7 @@ static BpData *is_break(BeamInstr *pc, BeamInstr break_op) {
return NULL;
}
bd = bd->next;
- while (bd != (BpData *) pc[-4]) {
+ while (bd != ebd) {
ASSERT(bd);
if (bd->orig_instr == break_op) {
bd = bd->next;
@@ -1298,17 +1331,24 @@ static BpData *is_break(BeamInstr *pc, BeamInstr break_op) {
}
return NULL;
}
-static BpData *get_break(BeamInstr *pc, BeamInstr break_op) {
+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 *bd = (BpData *) pc[-4];
+ BpData **rs = (BpData **) pc[-4];
+ BpData *bd = NULL, *ebd = NULL;
- if (! bd){
+ 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 != (BpData *) pc[-4]) {
+ while (bd != ebd) {
ASSERT(bd);
if (bd->this_instr == break_op) {
ASSERT(bd);
diff --git a/erts/emulator/beam/beam_bp.h b/erts/emulator/beam/beam_bp.h
index 6b339401fc..b76e0c01e7 100644
--- a/erts/emulator/beam/beam_bp.h
+++ b/erts/emulator/beam/beam_bp.h
@@ -27,24 +27,41 @@
-/*
-** Common struct to all bp_data_*
-**
-** Two gotchas:
-**
-** 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.
-**
-** 2) pc[-4] 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])->next and has to cast that pointer
-** to the correct bp_data type.
+/* 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; /* -"- */
@@ -127,31 +144,46 @@ extern erts_smp_spinlock_t erts_bp_lock;
#define ErtsSmpBPUnlock(BDC)
#endif
-#define ErtsCountBreak(pc,instr_result) \
-do { \
- BpDataCount *bdc = (BpDataCount *) (pc)[-4]; \
- \
+ERTS_INLINE Uint bp_sched2ix(void);
+
+#ifdef ERTS_SMP
+#define bp_sched2ix_proc(p) ((p)->scheduler_data->no - 1)
+#else
+#define bp_sched2ix_proc(p) (0)
+#endif
+
+#define ErtsCountBreak(pc,instr_result) \
+do { \
+ BpData **bds = (BpData **) (pc)[-4]; \
+ BpDataCount *bdc = NULL; \
+ Uint ix = bp_sched2ix(); \
+ \
ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \
- ASSERT(bdc); \
- bdc = (BpDataCount *) bdc->next; \
- ASSERT(bdc); \
- (pc)[-4] = (BeamInstr) bdc; \
- ErtsSmpBPLock(bdc); \
- if (bdc->count >= 0) bdc->count++; \
- ErtsSmpBPUnlock(bdc); \
- *(instr_result) = bdc->orig_instr; \
+ ASSERT(bds); \
+ bdc = (BpDataCount *) bds[ix]; \
+ bdc = (BpDataCount *) bdc->next; \
+ ASSERT(bdc); \
+ bds[ix] = (BpData *) bdc; \
+ ErtsSmpBPLock(bdc); \
+ if (bdc->count >= 0) bdc->count++; \
+ ErtsSmpBPUnlock(bdc); \
+ *(instr_result) = bdc->orig_instr; \
} while (0)
-#define ErtsBreakSkip(pc,instr_result) \
-do { \
- BpData *bd = (BpData *) (pc)[-4]; \
- \
+#define ErtsBreakSkip(pc,instr_result) \
+do { \
+ BpData **bds = (BpData **) (pc)[-4]; \
+ BpData *bd = NULL; \
+ Uint ix = bp_sched2ix(); \
+ \
ASSERT((pc)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI)); \
- ASSERT(bd); \
- bd = bd->next; \
- ASSERT(bd); \
- (pc)[-4] = (BeamInstr) bd; \
- *(instr_result) = bd->orig_instr; \
+ 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{
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index 29d0c0afde..6313319b9b 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -4415,23 +4415,28 @@ apply_bif_or_nif_epilogue:
OpCase(i_time_breakpoint): {
BeamInstr real_I;
- BpDataTime *bdt = (BpDataTime *) (I)[-4];
- Uint tail_call = 0;
+ 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);
- (I)[-4] = (BeamInstr) bdt;
+ bds[ix] = (BpData *) bdt;
real_I = bdt->orig_instr;
ASSERT(VALID_INSTR(real_I));
if (IS_TRACED_FL(c_p, F_TRACE_CALLS) && !(bdt->pause)) {
- if (*cp_val((Eterm)c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) {
- tail_call = 1;
- }
-
- if (tail_call) {
+ 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);
@@ -4458,7 +4463,7 @@ apply_bif_or_nif_epilogue:
E -= 2;
E[0] = make_cp(I);
E[1] = make_cp(c_p->cp); /* original return address */
- c_p->cp = (Eterm *) make_cp(beam_return_time_trace);
+ c_p->cp = (BeamInstr *) make_cp(beam_return_time_trace);
}
}
@@ -4488,18 +4493,20 @@ apply_bif_or_nif_epilogue:
BeamInstr real_I;
Uint32 flags;
Eterm tracer_pid;
- Uint *cpp;
+ BeamInstr *cpp;
int return_to_trace = 0, need = 0;
flags = 0;
SWAPOUT;
reg[0] = r(0);
if (*(c_p->cp) == (BeamInstr) OpCode(return_trace)) {
- cpp = (Uint*)&E[2];
- } else if (*(c_p->cp)
- == (BeamInstr) OpCode(i_return_to_trace)) {
+ cpp = (BeamInstr*)&E[2];
+ } else if (*(c_p->cp) == (BeamInstr) OpCode(i_return_to_trace)) {
+ return_to_trace = !0;
+ cpp = (BeamInstr*)&E[0];
+ } else if (*(c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) {
return_to_trace = !0;
- cpp = (Uint*)&E[0];
+ cpp = (BeamInstr*)&E[0];
} else {
cpp = NULL;
}
@@ -4516,6 +4523,8 @@ apply_bif_or_nif_epilogue:
} 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;
}
diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c
index 75de00d4c1..3d63fa1caf 100644
--- a/erts/emulator/beam/erl_nif.c
+++ b/erts/emulator/beam/erl_nif.c
@@ -1546,7 +1546,8 @@ BIF_RETTYPE load_nif_2(BIF_ALIST_2)
code_ptr[5+0] = (BeamInstr) BeamOp(op_call_nif);
}
else { /* Function traced, patch the original instruction word */
- BpData* bp = (BpData*) code_ptr[1];
+ BpData** bps = (BpData**) code_ptr[1];
+ BpData* bp = (BpData*) bps[bp_sched2ix()];
bp->orig_instr = (BeamInstr) BeamOp(op_call_nif);
}
code_ptr[5+1] = (BeamInstr) entry->funcs[i].fptr;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-11 10:29:04 +0000