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view libsanitizer/sanitizer_common/sanitizer_win_weak_interception.h @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
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//===-- sanitizer_win_weak_interception.h ---------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // This header provide helper macros to delegate calls of weak functions to the // implementation in the main executable when a strong definition is present. //===----------------------------------------------------------------------===// #ifndef SANITIZER_WIN_WEAK_INTERCEPTION_H #define SANITIZER_WIN_WEAK_INTERCEPTION_H #include "sanitizer_internal_defs.h" namespace __sanitizer { int interceptWhenPossible(uptr dll_function, const char *real_function); } // ----------------- Function interception helper macros -------------------- // // Weak functions, could be redefined in the main executable, but that is not // necessary, so we shouldn't die if we can not find a reference. #define INTERCEPT_WEAK(Name) interceptWhenPossible((uptr) Name, #Name); #define INTERCEPT_SANITIZER_WEAK_FUNCTION(Name) \ static int intercept_##Name() { \ return __sanitizer::interceptWhenPossible((__sanitizer::uptr) Name, #Name);\ } \ __pragma(section(".WEAK$M", long, read)) \ __declspec(allocate(".WEAK$M")) int (*__weak_intercept_##Name)() = \ intercept_##Name; #endif // SANITIZER_WIN_WEAK_INTERCEPTION_H