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32 lines
1.6 KiB
C++
32 lines
1.6 KiB
C++
//===-- sanitizer_win_weak_interception.h ---------------------------------===//
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// This header provide helper macros to delegate calls of weak functions to the
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// implementation in the main executable when a strong definition is present.
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_WIN_WEAK_INTERCEPTION_H
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#define SANITIZER_WIN_WEAK_INTERCEPTION_H
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#include "sanitizer_internal_defs.h"
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namespace __sanitizer {
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int interceptWhenPossible(uptr dll_function, const char *real_function);
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}
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// ----------------- Function interception helper macros -------------------- //
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// Weak functions, could be redefined in the main executable, but that is not
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// necessary, so we shouldn't die if we can not find a reference.
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#define INTERCEPT_WEAK(Name) interceptWhenPossible((uptr) Name, #Name);
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#define INTERCEPT_SANITIZER_WEAK_FUNCTION(Name) \
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static int intercept_##Name() { \
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return __sanitizer::interceptWhenPossible((__sanitizer::uptr) Name, #Name);\
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} \
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__pragma(section(".WEAK$M", long, read)) \
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__declspec(allocate(".WEAK$M")) int (*__weak_intercept_##Name)() = \
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intercept_##Name;
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#endif // SANITIZER_WIN_WEAK_INTERCEPTION_H
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