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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-exception6//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 sensitive12// 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 system14// includes though.15//16//===----------------------------------------------------------------------===//17 18#ifndef SANITIZER_ERRNO_H19#define SANITIZER_ERRNO_H20 21#include "sanitizer_errno_codes.h"22#include "sanitizer_platform.h"23 24#if SANITIZER_FREEBSD || SANITIZER_APPLE25# define __errno_location __error26#elif SANITIZER_ANDROID || SANITIZER_NETBSD27# define __errno_location __errno28#elif SANITIZER_SOLARIS29# define __errno_location ___errno30#elif SANITIZER_WINDOWS31# define __errno_location _errno32#elif SANITIZER_HAIKU33# define __errno_location _errnop34#endif35 36extern "C" int *__errno_location();37 38#define errno (*__errno_location())39 40#endif // SANITIZER_ERRNO_H41