1 //===-- interception_linux.cc -----------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file is a part of AddressSanitizer, an address sanity checker. 11 // 12 // Linux-specific interception methods. 13 //===----------------------------------------------------------------------===// 14 15 #if defined(__linux__) || defined(__FreeBSD__) 16 #include "interception.h" 17 18 #include <dlfcn.h> // for dlsym() and dlvsym() 19 20 namespace __interception { 21 bool GetRealFunctionAddress(const char *func_name, uptr *func_addr, 22 uptr real, uptr wrapper) { 23 *func_addr = (uptr)dlsym(RTLD_NEXT, func_name); 24 return real == wrapper; 25 } 26 27 #if !defined(__ANDROID__) // android does not have dlvsym 28 void *GetFuncAddrVer(const char *func_name, const char *ver) { 29 return dlvsym(RTLD_NEXT, func_name, ver); 30 } 31 #endif // !defined(__ANDROID__) 32 33 } // namespace __interception 34 35 36 #endif // __linux__ || __FreeBSD__ 37
