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Low-overhead profiler, part 4: JIT compiler support.

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This commit is contained in:
Mike Pall
2013-09-08 02:53:23 +02:00
parent d3d30d389b
commit d1194a82eb
12 changed files with 151 additions and 12 deletions
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17
src/lj_trace.c
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@@ -766,17 +766,20 @@ int LJ_FASTCALL lj_trace_exit(jit_State *J, void *exptr)
if (errcode)
return -errcode; /* Return negated error code. */
lj_vmevent_send(L, TEXIT,
lj_state_checkstack(L, 4+RID_NUM_GPR+RID_NUM_FPR+LUA_MINSTACK);
setintV(L->top++, J->parent);
setintV(L->top++, J->exitno);
trace_exit_regs(L, ex);
);
if (!(LJ_HASPROFILE && (G(L)->hookmask & HOOK_PROFILE)))
lj_vmevent_send(L, TEXIT,
lj_state_checkstack(L, 4+RID_NUM_GPR+RID_NUM_FPR+LUA_MINSTACK);
setintV(L->top++, J->parent);
setintV(L->top++, J->exitno);
trace_exit_regs(L, ex);
);
pc = exd.pc;
cf = cframe_raw(L->cframe);
setcframe_pc(cf, pc);
if (G(L)->gc.state == GCSatomic || G(L)->gc.state == GCSfinalize) {
if (LJ_HASPROFILE && (G(L)->hookmask & HOOK_PROFILE)) {
/* Just exit to interpreter. */
} else if (G(L)->gc.state == GCSatomic || G(L)->gc.state == GCSfinalize) {
if (!(G(L)->hookmask & HOOK_GC))
lj_gc_step(L); /* Exited because of GC: drive GC forward. */
} else {