diff options
Diffstat (limited to 'tools/include/linux/compiler-gcc.h')
| -rw-r--r-- | tools/include/linux/compiler-gcc.h | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/tools/include/linux/compiler-gcc.h b/tools/include/linux/compiler-gcc.h index 0d35f18006a1..e20f98e14e81 100644 --- a/tools/include/linux/compiler-gcc.h +++ b/tools/include/linux/compiler-gcc.h @@ -1,22 +1,26 @@ /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _TOOLS_LINUX_COMPILER_H_ -#error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead." +#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 GCC_VERSION >= 70000 && !defined(__CHECKER__) -# define __fallthrough __attribute__ ((fallthrough)) +#if __has_attribute(__fallthrough__) +# define fallthrough __attribute__((__fallthrough__)) +#else +# define fallthrough do {} while (0) /* fallthrough */ #endif -#if GCC_VERSION >= 40300 +#if __has_attribute(__error__) # define __compiletime_error(message) __attribute__((error(message))) -#endif /* GCC_VERSION >= 40300 */ +#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])) @@ -36,7 +40,3 @@ #endif #define __printf(a, b) __attribute__((format(printf, a, b))) #define __scanf(a, b) __attribute__((format(scanf, a, b))) - -#if GCC_VERSION >= 50100 -#define COMPILER_HAS_GENERIC_BUILTIN_OVERFLOW 1 -#endif |