lib/interception/interception_linux.cc

   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 #ifdef __linux__
  16 #include "interception.h"
  17
  18 #include <stddef.h>  // for NULL
  19 #include <dlfcn.h>   // for dlsym
  20
  21 namespace __interception {
  22 bool GetRealFunctionAddress(const char *func_name, uptr *func_addr,
  23     uptr real, uptr wrapper) {
  24   *func_addr = (uptr)dlsym(RTLD_NEXT, func_name);
  25   return real == wrapper;
  26 }
  27 }  // namespace __interception
  28
  29
  30 #endif  // __linux__