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