1 //===-- interception_linux.h ------------------------------------*- C++ -*-===// 2 // 3 // This file is distributed under the University of Illinois Open Source 4 // License. See LICENSE.TXT for details. 5 // 6 //===----------------------------------------------------------------------===// 7 // 8 // This file is a part of AddressSanitizer, an address sanity checker. 9 // 10 // Linux-specific interception methods. 11 //===----------------------------------------------------------------------===// 12 13 #if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) 14 15 #if !defined(INCLUDED_FROM_INTERCEPTION_LIB) 16 # error "interception_linux.h should be included from interception library only" 17 #endif 18 19 #ifndef INTERCEPTION_LINUX_H 20 #define INTERCEPTION_LINUX_H 21 22 namespace __interception { 23 // returns true if a function with the given name was found. 24 bool GetRealFunctionAddress(const char *func_name, uptr *func_addr, 25 uptr real, uptr wrapper); 26 void *GetFuncAddrVer(const char *func_name, const char *ver); 27 } // namespace __interception 28 29 #define INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func) \ 30 ::__interception::GetRealFunctionAddress( \ 31 #func, (::__interception::uptr *)&__interception::PTR_TO_REAL(func), \ 32 (::__interception::uptr) & (func), \ 33 (::__interception::uptr) & WRAP(func)) 34 35 #if !defined(__ANDROID__) // android does not have dlvsym 36 # define INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver) \ 37 ::__interception::real_##func = (func##_f)(unsigned long) \ 38 ::__interception::GetFuncAddrVer(#func, symver) 39 #else 40 # define INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver) \ 41 INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func) 42 #endif // !defined(__ANDROID__) 43 44 #endif // INTERCEPTION_LINUX_H 45 #endif // __linux__ || __FreeBSD__ || __NetBSD__ 46