Current File : //usr/include/sysprof-4/sysprof-macros.h
/* sysprof-macros.h
*
* Copyright 2020 Endless OS Foundation
*
* Author:
* - Philip Withnall <withnall@endlessm.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Subject to the terms and conditions of this license, each copyright holder
* and contributor hereby grants to those receiving rights under this license
* a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
* irrevocable (except for failure to satisfy the conditions of this license)
* patent license to make, have made, use, offer to sell, sell, import, and
* otherwise transfer this software, where such license applies only to those
* patent claims, already acquired or hereafter acquired, licensable by such
* copyright holder or contributor that are necessarily infringed by:
*
* (a) their Contribution(s) (the licensed copyrights of copyright holders
* and non-copyrightable additions of contributors, in source or binary
* form) alone; or
*
* (b) combination of their Contribution(s) with the work of authorship to
* which such Contribution(s) was added by such copyright holder or
* contributor, if, at the time the Contribution is added, such addition
* causes such combination to be necessarily infringed. The patent license
* shall not apply to any other combinations which include the
* Contribution.
*
* Except as expressly stated above, no rights or licenses from any copyright
* holder or contributor is granted under this license, whether expressly, by
* implication, estoppel or otherwise.
*
* DISCLAIMER
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* SPDX-License-Identifier: BSD-2-Clause-Patent
*/
#pragma once
#include <limits.h>
#ifdef __GNUC__
#define SYSPROF_GNUC_CHECK_VERSION(major, minor) \
((__GNUC__ > (major)) || \
((__GNUC__ == (major)) && \
(__GNUC_MINOR__ >= (minor))))
#else
#define SYSPROF_GNUC_CHECK_VERSION(major, minor) 0
#endif
#ifdef __cpp_static_assert
# define SYSPROF_STATIC_ASSERT(expr, msg) static_assert(expr, msg)
#elif SYSPROF_GNUC_CHECK_VERSION(4, 6)
# define SYSPROF_STATIC_ASSERT(expr, msg) _Static_assert(expr, msg)
#else
# define _SYSPROF_STATIC_ASSERT2(expr, msg, id) typedef char __static_assert_##id[(expr) ? 0 : -1];
# define _SYSPROF_STATIC_ASSERT(expr, msg, id) _SYSPROF_STATIC_ASSERT2(expr, msg, id)
# define SYSPROF_STATIC_ASSERT(expr, msg) _SYSPROF_STATIC_ASSERT(expr, msg, __COUNTER__)
#endif
#if INT_MAX == LONG_MAX
#define SYSPROF_INT64_CONSTANT(x) x##ULL
#define SYSPROF_UINT64_CONSTANT(x) x##LL
#else
#define SYSPROF_INT64_CONSTANT(x) x##UL
#define SYSPROF_UINT64_CONSTANT(x) x##L
#endif
#ifdef __cplusplus
#define SYSPROF_BEGIN_DECLS extern "C" {
#define SYSPROF_END_DECLS }
#else
#define SYSPROF_BEGIN_DECLS
#define SYSPROF_END_DECLS
#endif
#if defined (__GNUC__)
#define SYSPROF_INTERNAL __attribute__((visibility("hidden")))
#else
#define SYSPROF_INTERNAL
#endif
#if defined(__GNUC__)
#define SYSPROF_LIKELY(expr) (__builtin_expect (!!(expr), 1))
#define SYSPROF_UNLIKELY(expr) (__builtin_expect (!!(expr), 0))
#else
#define SYSPROF_LIKELY(expr) (expr)
#define SYSPROF_UNLIKELY(expr) (expr)
#endif
#if defined(__GNUC__)
#define SYSPROF_PRINTF(format_idx, arg_idx) __attribute__((format(printf, format_idx, arg_idx)))
#else
#define SYSPROF_PRINTF(format_idx, arg_idx)
#endif
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