1 //===-- sanitizer_errno.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 shared between sanitizers run-time libraries. 11 // 12 // Defines errno to avoid including errno.h and its dependencies into sensitive 13 // files (e.g. interceptors are not supposed to include any system headers). 14 // It's ok to use errno.h directly when your file already depend on other system 15 // includes though. 16 // 17 //===----------------------------------------------------------------------===// 18 19 #ifndef SANITIZER_ERRNO_H 20 #define SANITIZER_ERRNO_H 21 22 #include "sanitizer_errno_codes.h" 23 #include "sanitizer_platform.h" 24 25 #if SANITIZER_FREEBSD || SANITIZER_MAC 26 # define __errno_location __error 27 #elif SANITIZER_ANDROID || SANITIZER_NETBSD || SANITIZER_OPENBSD || \ 28 SANITIZER_RTEMS 29 # define __errno_location __errno 30 #elif SANITIZER_SOLARIS 31 # define __errno_location ___errno 32 #elif SANITIZER_WINDOWS 33 # define __errno_location _errno 34 #endif 35 36 extern "C" int *__errno_location(); 37 38 #define errno (*__errno_location()) 39 40 #endif // SANITIZER_ERRNO_H 41