compiler_attributes.h

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/* SPDX-License-Identifier: BSD-3-Clause
 *
 * Copyright(c) 2019 Intel Corporation. All rights reserved.
 *
 * Author: Karol Trzcinski <karolx.trzcinski@linux.intel.com>
 */
 
#ifndef __SOF_COMPILER_ATTRIBUTES_H__
#define __SOF_COMPILER_ATTRIBUTES_H__
 
#define __sparse_cache
#define __sparse_force
 
#ifndef __packed
#define __packed __attribute__((packed))
#endif
 
#ifndef __unused
#define __unused __attribute__((unused))
#endif
 
#ifndef __maybe_unused
#define __maybe_unused __attribute__((unused))
#endif
 
#ifndef __aligned
#define __aligned(x) __attribute__((__aligned__(x)))
#endif
 
#ifndef __section
#define __section(x) __attribute__((section(x)))
#endif
 
/* The fallthrough attribute is supported since GCC 7.0
 * and Clang 10.0.0.
 *
 * Note that Clang sets __GNUC__ == 4 so the GCC version
 * test will not be true here, and must go through
 * the Clang version test.
 */
#if ((defined(__GNUC__) && (__GNUC__ >= 7)) || \
     (defined(__clang__) && (__clang_major__ >= 10))) && !defined(__CHECKER__)
#define COMPILER_FALLTHROUGH __attribute__((fallthrough))
#else
#define COMPILER_FALLTHROUGH  /* fallthrough */
#endif
 
#endif /* __SOF_COMPILER_ATTRIBUTES_H__ */