1 //===-- sanitizer_errno.h ---------------------------------------*- 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 shared between sanitizers run-time libraries. 9 // 10 // Defines errno to avoid including errno.h and its dependencies into sensitive 11 // files (e.g. interceptors are not supposed to include any system headers). 12 // It's ok to use errno.h directly when your file already depend on other system 13 // includes though. 14 // 15 //===----------------------------------------------------------------------===// 16 17 #ifndef SANITIZER_ERRNO_H 18 #define SANITIZER_ERRNO_H 19 20 #include "sanitizer_errno_codes.h" 21 #include "sanitizer_platform.h" 22 23 #if SANITIZER_FREEBSD || SANITIZER_MAC 24 # define __errno_location __error 25 #elif SANITIZER_ANDROID || SANITIZER_NETBSD || SANITIZER_OPENBSD || \ 26 SANITIZER_RTEMS 27 # define __errno_location __errno 28 #elif SANITIZER_SOLARIS 29 # define __errno_location ___errno 30 #elif SANITIZER_WINDOWS 31 # define __errno_location _errno 32 #endif 33 34 extern "C" int *__errno_location(); 35 36 #define errno (*__errno_location()) 37 38 #endif // SANITIZER_ERRNO_H 39