[ASan] Add interceptor for swapcontext to fight with false positives in some of its use cases.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@168508 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/asan/asan_internal.h b/lib/asan/asan_internal.h
index f9a6149..201822c 100644
--- a/lib/asan/asan_internal.h
+++ b/lib/asan/asan_internal.h
@@ -116,6 +116,7 @@
void SetAlternateSignalStack();
void UnsetAlternateSignalStack();
void InstallSignalHandlers();
+void ClearShadowMemoryForContext(void *context);
void AsanPlatformThreadInit();
// Wrapper for TLS/TSD.