Differential D61871 Diff 200814 lib/asan/asan_new_delete.cc

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lib/asan/asan_new_delete.cc

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	namespace std {			namespace std {
	struct nothrow_t {};			struct nothrow_t {};
	enum class align_val_t: size_t {};			enum class align_val_t: size_t {};
	} // namespace std			} // namespace std

	// TODO(alekseyshl): throw std::bad_alloc instead of dying on OOM.			// TODO(alekseyshl): throw std::bad_alloc instead of dying on OOM.
	// For local pool allocation, align to SHADOW_GRANULARITY to match asan			// For local pool allocation, align to SHADOW_GRANULARITY to match asan
	// allocator behavior.			// allocator behavior.
	#define OPERATOR_NEW_BODY(type, nothrow) \			#define OPERATOR_NEW_BODY(type, nothrow) \
	if (ALLOCATE_FROM_LOCAL_POOL) {\			MAYBE_ALLOCATE_FROM_LOCAL_POOL(nothrow); \
	void *res = MemalignFromLocalPool(SHADOW_GRANULARITY, size);\
	if (!nothrow) CHECK(res);\
	return res;\
	}\
	GET_STACK_TRACE_MALLOC;\			GET_STACK_TRACE_MALLOC; \
	void *res = asan_memalign(0, size, &stack, type);\			void *res = asan_memalign(0, size, &stack, type); \
	if (!nothrow && UNLIKELY(!res)) ReportOutOfMemory(size, &stack);\			if (!nothrow && UNLIKELY(!res)) \
				ReportOutOfMemory(size, &stack); \
	return res;			return res;
	#define OPERATOR_NEW_BODY_ALIGN(type, nothrow) \			#define OPERATOR_NEW_BODY_ALIGN(type, nothrow) \
	if (ALLOCATE_FROM_LOCAL_POOL) {\			MAYBE_ALLOCATE_FROM_LOCAL_POOL(nothrow); \
	void *res = MemalignFromLocalPool((uptr)align, size);\
	if (!nothrow) CHECK(res);\
	return res;\
	}\
	GET_STACK_TRACE_MALLOC;\			GET_STACK_TRACE_MALLOC; \
	void *res = asan_memalign((uptr)align, size, &stack, type);\			void *res = asan_memalign((uptr)align, size, &stack, type); \
	if (!nothrow && UNLIKELY(!res)) ReportOutOfMemory(size, &stack);\			if (!nothrow && UNLIKELY(!res)) \
				ReportOutOfMemory(size, &stack); \
	return res;			return res;

	// On OS X it's not enough to just provide our own 'operator new' and			// On OS X it's not enough to just provide our own 'operator new' and
	// 'operator delete' implementations, because they're going to be in the			// 'operator delete' implementations, because they're going to be in the
	// runtime dylib, and the main executable will depend on both the runtime			// runtime dylib, and the main executable will depend on both the runtime
	// dylib and libstdc++, each of those'll have its implementation of new and			// dylib and libstdc++, each of those'll have its implementation of new and
	// delete.			// delete.
	// To make sure that C++ allocation/deallocation operators are overridden on			// To make sure that C++ allocation/deallocation operators are overridden on
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