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 35extern "C" int *__errno_location(); 36 37#define errno (*__errno_location()) 38 39#endif // SANITIZER_ERRNO_H 40