1 //===-- interception_linux.h ------------------------------------*- 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 // Windows-specific interception methods. 13 //===----------------------------------------------------------------------===// 14 15 #ifdef _WIN32 16 17 #if !defined(INCLUDED_FROM_INTERCEPTION_LIB) 18 # error "interception_win.h should be included from interception library only" 19 #endif 20 21 #ifndef INTERCEPTION_WIN_H 22 #define INTERCEPTION_WIN_H 23 24 namespace __interception { 25 // All the functions in the OverrideFunction() family return true on success, 26 // false on failure (including "couldn't find the function"). 27 28 // Overrides a function by its address. 29 bool OverrideFunction(uptr old_func, uptr new_func, uptr *orig_old_func = 0); 30 31 // Overrides a function in a system DLL or DLL CRT by its exported name. 32 bool OverrideFunction(const char *name, uptr new_func, uptr *orig_old_func = 0); 33 34 // Windows-only replacement for GetProcAddress. Useful for some sanitizers. 35 uptr InternalGetProcAddress(void *module, const char *func_name); 36 37 } // namespace __interception 38 39 #if defined(INTERCEPTION_DYNAMIC_CRT) 40 #define INTERCEPT_FUNCTION_WIN(func) \ 41 ::__interception::OverrideFunction(#func, \ 42 (::__interception::uptr)WRAP(func), \ 43 (::__interception::uptr *)&REAL(func)) 44 #else 45 #define INTERCEPT_FUNCTION_WIN(func) \ 46 ::__interception::OverrideFunction((::__interception::uptr)func, \ 47 (::__interception::uptr)WRAP(func), \ 48 (::__interception::uptr *)&REAL(func)) 49 #endif 50 51 #define INTERCEPT_FUNCTION_VER_WIN(func, symver) INTERCEPT_FUNCTION_WIN(func) 52 53 #endif // INTERCEPTION_WIN_H 54 #endif // _WIN32 55