/* Public domain. */

#ifndef _LINUX_COMPILER_H
#define _LINUX_COMPILER_H

#include <linux/kconfig.h>
#include <sys/atomic.h>         /* for READ_ONCE() WRITE_ONCE() */

#define unlikely(x)     __builtin_expect(!!(x), 0)
#define likely(x)       __builtin_expect(!!(x), 1)

#define __force
#define __acquires(x)
#define __releases(x)
#define __read_mostly
#define __iomem
#define __must_check
#define __init
#define __exit
#define __deprecated
#define __nonstring
#define __always_unused __attribute__((__unused__))
#define __maybe_unused  __attribute__((__unused__))
#define __always_inline inline __attribute__((__always_inline__))
#define noinline        __attribute__((__noinline__))
#define noinline_for_stack       __attribute__((__noinline__))
#define fallthrough     do {} while (0)
#define __counted_by(x)
#define __cleanup(fn)   __attribute__((__cleanup__(fn)))

#define __PASTE(x,y) __CONCAT(x,y)

#ifndef __user
#define __user
#endif

#define barrier()       __asm volatile("" : : : "memory")

#define __printf(x, y)  __attribute__((__format__(__kprintf__,x,y)))

/* The Linux code doesn't meet our usual standards! */
#ifdef __clang__
#pragma clang diagnostic ignored "-Winitializer-overrides"
#pragma clang diagnostic ignored "-Wunused-function"
#pragma clang diagnostic ignored "-Wunused-variable"
#pragma clang diagnostic ignored "-Wgnu-variable-sized-type-not-at-end"
#else
#pragma GCC diagnostic ignored "-Wformat-zero-length"
#pragma GCC diagnostic ignored "-Wunused-variable"
#endif

#define __diag_push()
#define __diag_ignore_all(x, y)
#define __diag_pop()

#define OPTIMIZER_HIDE_VAR(x)

#ifndef __COUNTER__
#define __COUNTER__     __LINE
#endif

#define ____UNIQUE_ID(prefix, num)      prefix##num
#define ___UNIQUE_ID(prefix, num)       ____UNIQUE_ID(prefix, num)
#define __UNIQUE_ID(prefix)             ___UNIQUE_ID(prefix, __COUNTER__)

#endif