Vendor import of compiler-rt trunk r306956:vendor/compiler-rt/compiler-rt-trunk-r306956

https://llvm.org/svn/llvm-project/compiler-rt/trunk@306956

1 files changed, 14 insertions, 6 deletions

diff --git a/lib/msan/msan_new_delete.cc b/lib/msan/msan_new_delete.cc
index 540100316693..c7295feebfe4 100644
--- a/lib/msan/msan_new_delete.cc
+++ b/lib/msan/msan_new_delete.cc
@@ -14,6 +14,7 @@
 
 #include "msan.h"
 #include "interception/interception.h"
+#include "sanitizer_common/sanitizer_allocator.h"
 
 #if MSAN_REPLACE_OPERATORS_NEW_AND_DELETE
 
@@ -27,18 +28,25 @@ namespace std {
 }  // namespace std
 
 
-#define OPERATOR_NEW_BODY \
+// TODO(alekseys): throw std::bad_alloc instead of dying on OOM.
+#define OPERATOR_NEW_BODY(nothrow) \
   GET_MALLOC_STACK_TRACE; \
-  return MsanReallocate(&stack, 0, size, sizeof(u64), false)
+  void *res = MsanReallocate(&stack, 0, size, sizeof(u64), false);\
+  if (!nothrow && UNLIKELY(!res)) DieOnFailure::OnOOM();\
+  return res
 
 INTERCEPTOR_ATTRIBUTE
-void *operator new(size_t size) { OPERATOR_NEW_BODY; }
+void *operator new(size_t size) { OPERATOR_NEW_BODY(false /*nothrow*/); }
 INTERCEPTOR_ATTRIBUTE
-void *operator new[](size_t size) { OPERATOR_NEW_BODY; }
+void *operator new[](size_t size) { OPERATOR_NEW_BODY(false /*nothrow*/); }
 INTERCEPTOR_ATTRIBUTE
-void *operator new(size_t size, std::nothrow_t const&) { OPERATOR_NEW_BODY; }
+void *operator new(size_t size, std::nothrow_t const&) {
+  OPERATOR_NEW_BODY(true /*nothrow*/);
+}
 INTERCEPTOR_ATTRIBUTE
-void *operator new[](size_t size, std::nothrow_t const&) { OPERATOR_NEW_BODY; }
+void *operator new[](size_t size, std::nothrow_t const&) {
+  OPERATOR_NEW_BODY(true /*nothrow*/);
+}
 
 #define OPERATOR_DELETE_BODY \
   GET_MALLOC_STACK_TRACE; \