libsanitizer/interception/interception_linux.cc

   1 //===-- interception_linux.cc -----------------------------------*- 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 #ifdef __linux__
  14 #include "interception.h"
  15
  16 #include <stddef.h>  // for NULL
  17 #include <dlfcn.h>   // for dlsym
  18
  19 namespace __interception {
  20 bool GetRealFunctionAddress(const char *func_name, uptr *func_addr,
  21     uptr real, uptr wrapper) {
  22   *func_addr = (uptr)dlsym(RTLD_NEXT, func_name);
  23   return real == wrapper;
  24 }
  25 }  // namespace __interception
  26
  27
  28 #endif  // __linux__