From: Zhangjin Wu <falcon@xxxxxxxxxxx> The new section helper is added for LD_DEAD_CODE_DATA_ELIMINATION to generate unique section name (strigified). Signed-off-by: Zhangjin Wu <falcon@xxxxxxxxxxx> Signed-off-by: Yuan Tan <tanyuan@xxxxxxxxxxx> --- include/linux/compiler.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 405b19cf6cf3..5a9cc3209b12 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -227,11 +227,25 @@ static inline void *offset_to_ptr(const int *off) #endif /* __ASSEMBLY__ */ +/* Import __stringify. */ +#ifndef __stringify +#include <linux/stringify.h> +#endif + /* Quite-unique ID. */ #ifndef __QUITE_UNIQUE_ID # define __QUITE_UNIQUE_ID(prefix) __PASTE(__PASTE(prefix, __LINE__), __COUNTER__) #endif +/* Quite-unique Section NAME. */ +#ifndef __SECTION_NAME +#ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION +# define __SECTION_NAME(prefix) __stringify(__QUITE_UNIQUE_ID(prefix.)) +#else +# define __SECTION_NAME(prefix) __stringify(prefix) +#endif +#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])) -- 2.34.1
