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Add a simple utility to detect profiling bias.

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This commit is contained in:
David Goldblatt
2020-08-03 15:27:08 -07:00
committed by David Goldblatt
parent e032a1a1de
commit 81c2f841e5
4 changed files with 75 additions and 2 deletions
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7
src/prof_sys.c
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@@ -27,6 +27,8 @@
malloc_mutex_t prof_dump_filename_mtx;
bool prof_do_mock = false;
static uint64_t prof_dump_seq;
static uint64_t prof_dump_iseq;
static uint64_t prof_dump_mseq;
@@ -267,11 +269,14 @@ prof_backtrace_impl(prof_bt_t *bt) {
}
#endif
void (* JET_MUTABLE prof_backtrace_hook)(prof_bt_t *bt) = &prof_backtrace_impl;
void
prof_backtrace(tsd_t *tsd, prof_bt_t *bt) {
cassert(config_prof);
pre_reentrancy(tsd, NULL);
prof_backtrace_impl(bt);
prof_backtrace_hook(bt);
post_reentrancy(tsd);
}