Refactor shadow poisoning done by asan-rt, no funtionality changes; patch by [email protected]
llvm-svn: 145505
diff --git a/compiler-rt/lib/asan/asan_rtl.cc b/compiler-rt/lib/asan/asan_rtl.cc
index a2cfb2a..bb9c7b1 100644
--- a/compiler-rt/lib/asan/asan_rtl.cc
+++ b/compiler-rt/lib/asan/asan_rtl.cc
@@ -469,9 +469,7 @@
CHECK(curr_thread);
uintptr_t top = curr_thread->stack_top();
uintptr_t bottom = ((uintptr_t)&local_stack - kPageSize) & ~(kPageSize-1);
- uintptr_t top_shadow = MemToShadow(top);
- uintptr_t bot_shadow = MemToShadow(bottom);
- real_memset((void*)bot_shadow, 0, top_shadow - bot_shadow);
+ PoisonShadow(bottom, top - bottom, 0);
}
extern "C" void WRAP(longjmp)(void *env, int val) {
