compiler-gcc.h (1163B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _TOOLS_LINUX_COMPILER_H_ 3#error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead." 4#endif 5 6/* 7 * Common definitions for all gcc versions go here. 8 */ 9#ifndef GCC_VERSION 10#define GCC_VERSION (__GNUC__ * 10000 \ 11 + __GNUC_MINOR__ * 100 \ 12 + __GNUC_PATCHLEVEL__) 13#endif 14 15#if GCC_VERSION >= 70000 && !defined(__CHECKER__) 16# define __fallthrough __attribute__ ((fallthrough)) 17#endif 18 19#if __has_attribute(__error__) 20# define __compiletime_error(message) __attribute__((error(message))) 21#endif 22 23/* &a[0] degrades to a pointer: a different type from an array */ 24#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) 25 26#ifndef __pure 27#define __pure __attribute__((pure)) 28#endif 29#define noinline __attribute__((noinline)) 30#ifndef __packed 31#define __packed __attribute__((packed)) 32#endif 33#ifndef __noreturn 34#define __noreturn __attribute__((noreturn)) 35#endif 36#ifndef __aligned 37#define __aligned(x) __attribute__((aligned(x))) 38#endif 39#define __printf(a, b) __attribute__((format(printf, a, b))) 40#define __scanf(a, b) __attribute__((format(scanf, a, b)))