Messages in this thread Patch in this message | | | From | cgel.zte@gmail ... | Subject | [PATCH linux-next] tools: compiler-gcc.h: Keep compatible with older GCC versions | Date | Sun, 2 Jan 2022 12:02:01 +0000 |
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From: xu xin <xu.xin16@zte.com.cn>
When HOST CC = gcc (GCC) 4.8.5, we found that there is an error occurring: Undefined __has_attribute as we built the whole kernel and tools.
To solve this, this patch is given to keep the compatibility with older GCC versions.
Reported-by: Zeal Robot <zealci@zte.com.cn> Co-developed-by: wangyong <wang.yong12@zte.com.cn> Signed-off-by: xu xin <xu.xin16@zte.com.cn> --- tools/include/linux/compiler-gcc.h | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/tools/include/linux/compiler-gcc.h b/tools/include/linux/compiler-gcc.h index 8816f06fc6c7..333ed16b3b12 100644 --- a/tools/include/linux/compiler-gcc.h +++ b/tools/include/linux/compiler-gcc.h @@ -16,6 +16,10 @@ # define __fallthrough __attribute__ ((fallthrough)) #endif +#ifndef __has_attribute +# define __has_attribute(x) 0 /* Compatibility with GCC versions < 5.x */ +#endif + #if __has_attribute(__error__) # define __compiletime_error(message) __attribute__((error(message))) #endif -- 2.25.1
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