mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-12-18 16:44:57 +08:00
b667dd7017
2019-08-14 Martin Liska <mliska@suse.cz> PR sanitizer/89832 PR sanitizer/91325 * All source files: Merge from upstream 368656. From-SVN: r274426
33 lines
1.6 KiB
C++
33 lines
1.6 KiB
C++
//===-- 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
|