/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _TOOLS_LINUX_COMPILER_H_
#error "Please do not include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."
#endif

/*
 * Common definitions for all gcc versions go here.
 */
#ifndef GCC_VERSION
#define GCC_VERSION (__GNUC__ * 10000           \
                     + __GNUC_MINOR__ * 100     \
                     + __GNUC_PATCHLEVEL__)
#endif

#if __has_attribute(__fallthrough__)
# define fallthrough                    __attribute__((__fallthrough__))
#else
# define fallthrough                    do {} while (0)  /* fallthrough */
#endif

#if __has_attribute(__error__)
# define __compiletime_error(message) __attribute__((error(message)))
#endif

/* &a[0] degrades to a pointer: a different type from an array */
#define __must_be_array(a)      BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))

#ifndef __pure
#define  __pure         __attribute__((pure))
#endif
#define  noinline       __attribute__((noinline))
#ifndef __packed
#define __packed        __attribute__((packed))
#endif
#ifndef __noreturn
#define __noreturn      __attribute__((noreturn))
#endif
#ifndef __aligned
#define __aligned(x)    __attribute__((aligned(x)))
#endif
#define __printf(a, b)  __attribute__((format(printf, a, b)))
#define __scanf(a, b)   __attribute__((format(scanf, a, b)))