contrib/compiler-rt/lib/interception/interception_win.h

   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