forked from OSchip/llvm-project
48 lines
1.8 KiB
C++
48 lines
1.8 KiB
C++
//===-- interception_linux.h ------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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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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//
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// This file is a part of AddressSanitizer, an address sanity checker.
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//
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// Linux-specific interception methods.
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//===----------------------------------------------------------------------===//
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#if defined(__linux__) || defined(__FreeBSD__)
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#if !defined(INCLUDED_FROM_INTERCEPTION_LIB)
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# error "interception_linux.h should be included from interception library only"
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#endif
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#ifndef INTERCEPTION_LINUX_H
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#define INTERCEPTION_LINUX_H
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namespace __interception {
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// returns true if a function with the given name was found.
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bool GetRealFunctionAddress(const char *func_name, uptr *func_addr,
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uptr real, uptr wrapper);
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void *GetFuncAddrVer(const char *func_name, const char *ver);
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} // namespace __interception
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#define INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func) \
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::__interception::GetRealFunctionAddress( \
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#func, (::__interception::uptr *)&__interception::PTR_TO_REAL(func), \
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(::__interception::uptr) & (func), \
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(::__interception::uptr) & WRAP(func))
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#if !defined(__ANDROID__) // android does not have dlvsym
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#define INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver) \
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(::__interception::real_##func = (func##_f)( \
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unsigned long)::__interception::GetFuncAddrVer(#func, symver))
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#else
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#define INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver) \
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INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func)
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#endif // !defined(__ANDROID__)
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#endif // INTERCEPTION_LINUX_H
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#endif // __linux__ || __FreeBSD__
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