Differential D42519 Diff 132485 lib/scudo/scudo_new_delete.cpp

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lib/scudo/scudo_new_delete.cpp

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	#include "scudo_allocator.h"			#include "scudo_allocator.h"

	#include "interception/interception.h"			#include "interception/interception.h"

	#include <stddef.h>			#include <stddef.h>

	using namespace __scudo;			using namespace __scudo;

				// C++ operators can't have dllexport attributes on Windows. We export them
				// anyway by passing extra -export flags to the linker, which is exactly that
				// dllexport would normally do. We need to export them in order to make the
				// VS2015 dynamic CRT (MD) work.
				#if SANITIZER_WINDOWS
				#define CXX_OPERATOR_ATTRIBUTE
				#define COMMENT_EXPORT(sym) __pragma(comment(linker, "/export:" sym))
				#ifdef _WIN64
				COMMENT_EXPORT("??2@YAPEAX_K@Z") // operator new
				COMMENT_EXPORT("??2@YAPEAX_KAEBUnothrow_t@std@@@Z") // operator new nothrow
				COMMENT_EXPORT("??3@YAXPEAX@Z") // operator delete
				COMMENT_EXPORT("??3@YAXPEAX_K@Z") // sized operator delete
				COMMENT_EXPORT("??_U@YAPEAX_K@Z") // operator new[]
				COMMENT_EXPORT("??_V@YAXPEAX@Z") // operator delete[]
				#else
				COMMENT_EXPORT("??2@YAPAXI@Z") // operator new
				COMMENT_EXPORT("??2@YAPAXIABUnothrow_t@std@@@Z") // operator new nothrow
				COMMENT_EXPORT("??3@YAXPAX@Z") // operator delete
				COMMENT_EXPORT("??3@YAXPAXI@Z") // sized operator delete
				COMMENT_EXPORT("??_U@YAPAXI@Z") // operator new[]
				COMMENT_EXPORT("??_V@YAXPAX@Z") // operator delete[]
				#endif
				#undef COMMENT_EXPORT
				#else
	#define CXX_OPERATOR_ATTRIBUTE INTERCEPTOR_ATTRIBUTE			#define CXX_OPERATOR_ATTRIBUTE INTERCEPTOR_ATTRIBUTE
				#endif

	// Fake std::nothrow_t to avoid including <new>.			// Fake std::nothrow_t to avoid including <new>.
	namespace std {			namespace std {
	struct nothrow_t {};			struct nothrow_t {};
	} // namespace std			} // namespace std

	// TODO(alekseys): throw std::bad_alloc instead of dying on OOM.			// TODO(alekseys): throw std::bad_alloc instead of dying on OOM.
	CXX_OPERATOR_ATTRIBUTE			CXX_OPERATOR_ATTRIBUTE
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