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Diffstat (limited to 'erts/emulator/beam/beam_emu.c')
-rw-r--r--erts/emulator/beam/beam_emu.c137
1 files changed, 116 insertions, 21 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c
index d42e74ccc9..c0680086aa 100644
--- a/erts/emulator/beam/beam_emu.c
+++ b/erts/emulator/beam/beam_emu.c
@@ -228,9 +228,10 @@ BeamInstr* em_call_traced_function;
** for the refering variable (one of these), and rouge references
** will most likely cause chaos.
*/
-BeamInstr beam_return_to_trace[1]; /* OpCode(i_return_to_trace) */
-BeamInstr beam_return_trace[1]; /* OpCode(i_return_trace) */
-BeamInstr beam_exception_trace[1]; /* UGLY also OpCode(i_return_trace) */
+BeamInstr beam_return_to_trace[1]; /* OpCode(i_return_to_trace) */
+BeamInstr beam_return_trace[1]; /* OpCode(i_return_trace) */
+BeamInstr beam_exception_trace[1]; /* UGLY also OpCode(i_return_trace) */
+BeamInstr beam_return_time_trace[1]; /* OpCode(i_return_time_trace) */
/*
* All Beam instructions in numerical order.
@@ -4403,35 +4404,109 @@ apply_bif_or_nif_epilogue:
OpCase(i_count_breakpoint): {
BeamInstr real_I;
- ErtsCountBreak((BeamInstr *) I, &real_I);
+ ErtsCountBreak(c_p, (BeamInstr *) I, &real_I);
ASSERT(VALID_INSTR(real_I));
Goto(real_I);
}
+ /* need to send mfa instead of bdt pointer
+ * the pointer might be deallocated.
+ */
+
+ OpCase(i_time_breakpoint): {
+ BeamInstr real_I;
+ BpData **bds = (BpData **) (I)[-4];
+ BpDataTime *bdt = NULL;
+ Uint ix = 0;
+#ifdef ERTS_SMP
+ ix = c_p->scheduler_data->no - 1;
+#else
+ ix = 0;
+#endif
+ bdt = (BpDataTime *)bds[ix];
+
+ ASSERT((I)[-5] == (BeamInstr) BeamOp(op_i_func_info_IaaI));
+ ASSERT(bdt);
+ bdt = (BpDataTime *) bdt->next;
+ ASSERT(bdt);
+ bds[ix] = (BpData *) bdt;
+ real_I = bdt->orig_instr;
+ ASSERT(VALID_INSTR(real_I));
+
+ if (IS_TRACED_FL(c_p, F_TRACE_CALLS) && !(bdt->pause)) {
+ if ( (*(c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) ||
+ (*(c_p->cp) == (BeamInstr) OpCode(return_trace)) ||
+ (*(c_p->cp) == (BeamInstr) OpCode(i_return_to_trace))) {
+ /* This _IS_ a tail recursive call */
+ SWAPOUT;
+ erts_trace_time_break(c_p, I, bdt, ERTS_BP_CALL_TIME_TAIL_CALL);
+ SWAPIN;
+ } else {
+ SWAPOUT;
+ erts_trace_time_break(c_p, I, bdt, ERTS_BP_CALL_TIME_CALL);
+
+ /* r register needs to be copied to the array
+ * for the garbage collector
+ */
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+ if (E - 2 < HTOP) {
+ reg[0] = r(0);
+ PROCESS_MAIN_CHK_LOCKS(c_p);
+ FCALLS -= erts_garbage_collect(c_p, 2, reg, I[-1]);
+ PROCESS_MAIN_CHK_LOCKS(c_p);
+ r(0) = reg[0];
+ }
+ SWAPIN;
+
+ ASSERT(c_p->htop <= E && E <= c_p->hend);
+
+ E -= 2;
+ E[0] = make_cp(I);
+ E[1] = make_cp(c_p->cp); /* original return address */
+ c_p->cp = (BeamInstr *) make_cp(beam_return_time_trace);
+ }
+ }
+
+ Goto(real_I);
+ }
+
+ OpCase(i_return_time_trace): {
+ BeamInstr *pc = (BeamInstr *) (UWord) E[0];
+ SWAPOUT;
+ erts_trace_time_break(c_p, pc, NULL, ERTS_BP_CALL_TIME_RETURN);
+ SWAPIN;
+ c_p->cp = NULL;
+ SET_I((BeamInstr *) cp_val(E[1]));
+ E += 2;
+ Goto(*I);
+ }
+
OpCase(i_trace_breakpoint):
if (! IS_TRACED_FL(c_p, F_TRACE_CALLS)) {
BeamInstr real_I;
- ErtsBreakSkip((BeamInstr *) I, &real_I);
+ ErtsBreakSkip(c_p, (BeamInstr *) I, &real_I);
Goto(real_I);
}
/* Fall through to next case */
OpCase(i_mtrace_breakpoint): {
- Uint real_I;
+ 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 = (Uint*)&E[0];
+ cpp = (BeamInstr*)&E[0];
+ } else if (*(c_p->cp) == (BeamInstr) OpCode(i_return_time_trace)) {
+ return_to_trace = !0;
+ cpp = (BeamInstr*)&E[0];
} else {
cpp = NULL;
}
@@ -4448,6 +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;
}
@@ -4957,13 +5034,15 @@ apply_bif_or_nif_epilogue:
em_call_error_handler = OpCode(call_error_handler);
em_call_traced_function = OpCode(call_traced_function);
em_apply_bif = OpCode(apply_bif);
- beam_apply[0] = (BeamInstr) OpCode(i_apply);
- beam_apply[1] = (BeamInstr) OpCode(normal_exit);
- beam_exit[0] = (BeamInstr) OpCode(error_action_code);
- beam_continue_exit[0] = (BeamInstr) OpCode(continue_exit);
- beam_return_to_trace[0] = (BeamInstr) OpCode(i_return_to_trace);
- beam_return_trace[0] = (BeamInstr) OpCode(return_trace);
- beam_exception_trace[0] = (BeamInstr) OpCode(return_trace); /* UGLY */
+
+ beam_apply[0] = (BeamInstr) OpCode(i_apply);
+ beam_apply[1] = (BeamInstr) OpCode(normal_exit);
+ beam_exit[0] = (BeamInstr) OpCode(error_action_code);
+ beam_continue_exit[0] = (BeamInstr) OpCode(continue_exit);
+ beam_return_to_trace[0] = (BeamInstr) OpCode(i_return_to_trace);
+ beam_return_trace[0] = (BeamInstr) OpCode(return_trace);
+ beam_exception_trace[0] = (BeamInstr) OpCode(return_trace); /* UGLY */
+ beam_return_time_trace[0] = (BeamInstr) OpCode(i_return_time_trace);
/*
* Enter all BIFs into the export table.
@@ -4975,6 +5054,8 @@ apply_bif_or_nif_epilogue:
bif_export[i] = ep;
ep->code[3] = (BeamInstr) OpCode(apply_bif);
ep->code[4] = (BeamInstr) bif_table[i].f;
+ /* XXX: set func info for bifs */
+ ((BeamInstr*)ep->code + 3)[-5] = (BeamInstr) BeamOp(op_i_func_info_IaaI);
}
return;
@@ -5167,14 +5248,18 @@ next_catch(Process* c_p, Eterm *reg) {
int active_catches = c_p->catches > 0;
int have_return_to_trace = 0;
Eterm *ptr, *prev, *return_to_trace_ptr = NULL;
- BeamInstr i_return_trace = beam_return_trace[0];
- BeamInstr i_return_to_trace = beam_return_to_trace[0];
+
+ BeamInstr i_return_trace = beam_return_trace[0];
+ BeamInstr i_return_to_trace = beam_return_to_trace[0];
+ BeamInstr i_return_time_trace = beam_return_time_trace[0];
+
ptr = prev = c_p->stop;
ASSERT(is_CP(*ptr));
ASSERT(ptr <= STACK_START(c_p));
if (ptr == STACK_START(c_p)) return NULL;
if ((is_not_CP(*ptr) || (*cp_val(*ptr) != i_return_trace &&
- *cp_val(*ptr) != i_return_to_trace))
+ *cp_val(*ptr) != i_return_to_trace &&
+ *cp_val(*ptr) != i_return_time_trace ))
&& c_p->cp) {
/* Can not follow cp here - code may be unloaded */
BeamInstr *cpp = c_p->cp;
@@ -5186,6 +5271,9 @@ next_catch(Process* c_p, Eterm *reg) {
} else if (cpp == beam_return_trace) {
/* Skip return_trace parameters */
ptr += 2;
+ } else if (cpp == beam_return_time_trace) {
+ /* Skip return_trace parameters */
+ ptr += 1;
} else if (cpp == beam_return_to_trace) {
have_return_to_trace = !0; /* Record next cp */
}
@@ -5215,6 +5303,13 @@ next_catch(Process* c_p, Eterm *reg) {
}
have_return_to_trace = !0; /* Record next cp */
return_to_trace_ptr = NULL;
+ } else if (*cp_val(*prev) == i_return_time_trace) {
+ /* Skip stack frame variables */
+ while (++ptr, ptr < STACK_START(c_p) && is_not_CP(*ptr)) {
+ if (is_catch(*ptr) && active_catches) goto found_catch;
+ }
+ /* Skip return_trace parameters */
+ ptr += 1;
} else {
if (have_return_to_trace) {
/* Record this cp as possible return_to trace cp */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-29 12:00:18 +0000