project-base/server-skynet-source-3rd-jemalloc
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Fix prof_backtrace() reentrancy level

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This commit is contained in:
Yinan Zhang 2019-09-03 17:11:06 -07:00
parent 785b84e603
commit 671f120e26
1 changed files with 17 additions and 8 deletions
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25
src/prof.c
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@ -208,8 +208,8 @@ bt_init(prof_bt_t *bt, void **vec) {
}
#ifdef JEMALLOC_PROF_LIBUNWIND
void
prof_backtrace(prof_bt_t *bt) {
static void
prof_backtrace_impl(prof_bt_t *bt) {
int nframes;
cassert(config_prof);
@ -250,8 +250,8 @@ prof_unwind_callback(struct _Unwind_Context *context, void *arg) {
return _URC_NO_REASON;
}
void
prof_backtrace(prof_bt_t *bt) {
static void
prof_backtrace_impl(prof_bt_t *bt) {
prof_unwind_data_t data = {bt, PROF_BT_MAX};
cassert(config_prof);
@ -259,8 +259,8 @@ prof_backtrace(prof_bt_t *bt) {
_Unwind_Backtrace(prof_unwind_callback, &data);
}
#elif (defined(JEMALLOC_PROF_GCC))
void
prof_backtrace(prof_bt_t *bt) {
static void
prof_backtrace_impl(prof_bt_t *bt) {
#define BT_FRAME(i) \
if ((i) < PROF_BT_MAX) { \
void *p; \
@ -422,13 +422,22 @@ prof_backtrace(prof_bt_t *bt) {
#undef BT_FRAME
}
#else
void
prof_backtrace(prof_bt_t *bt) {
static void
prof_backtrace_impl(prof_bt_t *bt) {
cassert(config_prof);
not_reached();
}
#endif
void
prof_backtrace(prof_bt_t *bt) {
cassert(config_prof);
tsd_t *tsd = tsd_fetch();
pre_reentrancy(tsd, NULL);
prof_backtrace_impl(bt);
post_reentrancy(tsd);
}
malloc_mutex_t *
prof_gctx_mutex_choose(void) {
unsigned ngctxs = atomic_fetch_add_u(&cum_gctxs, 1, ATOMIC_RELAXED);