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84 lines
2.3 KiB
84 lines
2.3 KiB
/* |
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* Copyright (C) 2016 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef _LIBLOG_PORTABILITY_H__ |
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#define _LIBLOG_PORTABILITY_H__ |
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#include <sys/cdefs.h> |
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#include <unistd.h> |
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/* Helpful private sys/cdefs.h like definitions */ |
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/* Declare this library function hidden and internal */ |
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#if defined(_WIN32) |
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#define LIBLOG_HIDDEN |
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#else |
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#define LIBLOG_HIDDEN __attribute__((visibility("hidden"))) |
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#endif |
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/* Declare this library function visible and external */ |
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#if defined(_WIN32) |
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#define LIBLOG_ABI_PUBLIC |
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#else |
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#define LIBLOG_ABI_PUBLIC __attribute__((visibility("default"))) |
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#endif |
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/* Declare this library function visible but private */ |
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#define LIBLOG_ABI_PRIVATE LIBLOG_ABI_PUBLIC |
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/* |
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* Declare this library function as reimplementation. |
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* Prevent circular dependencies, but allow _real_ library to hijack |
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*/ |
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#if defined(_WIN32) |
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#define LIBLOG_WEAK static /* Accept that it is totally private */ |
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#else |
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#define LIBLOG_WEAK __attribute__((weak, visibility("default"))) |
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#endif |
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/* possible missing definitions in sys/cdefs.h */ |
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/* DECLS */ |
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#ifndef __BEGIN_DECLS |
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#if defined(__cplusplus) |
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#define __BEGIN_DECLS extern "C" { |
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#define __END_DECLS } |
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#else |
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#define __BEGIN_DECLS |
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#define __END_DECLS |
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#endif |
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#endif |
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/* Unused argument. For C code only, remove symbol name for C++ */ |
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#ifndef __unused |
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#define __unused __attribute__((__unused__)) |
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#endif |
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/* possible missing definitions in unistd.h */ |
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#ifndef TEMP_FAILURE_RETRY |
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/* Used to retry syscalls that can return EINTR. */ |
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#define TEMP_FAILURE_RETRY(exp) \ |
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({ \ |
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__typeof__(exp) _rc; \ |
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do { \ |
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_rc = (exp); \ |
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} while (_rc == -1 && errno == EINTR); \ |
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_rc; \ |
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}) |
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#endif |
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#endif /* _LIBLOG_PORTABILITY_H__ */
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