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[asan] Modified ASAN_MEMORY_ACCESS_CALLBACK to use a function call to ReportGenericErrorWrapper. 

This change eliminate the stack frame for the fast path and improves runtime performance.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D106505
This commit is contained in:
Kirill Stoimenov 2021-07-21 16:20:35 +00:00
parent 40ec59227a
commit 7de73da8da
1 changed files with 12 additions and 6 deletions
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18
compiler-rt/lib/asan/asan_rtl.cpp
View File

@ -82,6 +82,17 @@ void ShowStatsAndAbort() {
Die();
}
NOINLINE
static void ReportGenericErrorWrapper(uptr addr, bool is_write, int size,
int exp_arg, bool fatal) {
if (__asan_test_only_reported_buggy_pointer) {
*__asan_test_only_reported_buggy_pointer = addr;
} else {
GET_CALLER_PC_BP_SP;
ReportGenericError(pc, bp, sp, addr, is_write, size, exp_arg, fatal);
}
}
// --------------- LowLevelAllocateCallbac ---------- {{{1
static void OnLowLevelAllocate(uptr ptr, uptr size) {
PoisonShadow(ptr, size, kAsanInternalHeapMagic);
@ -145,12 +156,7 @@ ASAN_REPORT_ERROR_N(store, true)
if (UNLIKELY(size >= SHADOW_GRANULARITY || \
((s8)((addr & (SHADOW_GRANULARITY - 1)) + size - 1)) >= \
(s8)s)) { \
if (__asan_test_only_reported_buggy_pointer) { \
*__asan_test_only_reported_buggy_pointer = addr; \
} else { \
GET_CALLER_PC_BP_SP; \
ReportGenericError(pc, bp, sp, addr, is_write, size, exp_arg, fatal); \
} \
ReportGenericErrorWrapper(addr, is_write, size, exp_arg, fatal); \
} \
}