1 //===-- sanitizer_errno.h ---------------------------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file is shared between sanitizers run-time libraries. 10 // 11 // Defines errno to avoid including errno.h and its dependencies into sensitive 12 // files (e.g. interceptors are not supposed to include any system headers). 13 // It's ok to use errno.h directly when your file already depend on other system 14 // includes though. 15 // 16 //===----------------------------------------------------------------------===// 17 18 #ifndef SANITIZER_ERRNO_H 19 #define SANITIZER_ERRNO_H 20 21 #include "sanitizer_errno_codes.h" 22 #include "sanitizer_platform.h" 23 24 #if SANITIZER_FREEBSD || SANITIZER_MAC 25 # define __errno_location __error 26 #elif SANITIZER_ANDROID || SANITIZER_NETBSD || SANITIZER_OPENBSD || \ 27 SANITIZER_RTEMS 28 # define __errno_location __errno 29 #elif SANITIZER_SOLARIS 30 # define __errno_location ___errno 31 #elif SANITIZER_WINDOWS 32 # define __errno_location _errno 33 #endif 34 35 extern "C" int *__errno_location(); 36 37 #define errno (*__errno_location()) 38 39 #endif // SANITIZER_ERRNO_H 40