1 #ifndef _LINUX_FRAME_H 2 #define _LINUX_FRAME_H 3 4 #ifdef CONFIG_STACK_VALIDATION 5 /* 6 * This macro marks the given function's stack frame as "non-standard", which 7 * tells objtool to ignore the function when doing stack metadata validation. 8 * It should only be used in special cases where you're 100% sure it won't 9 * affect the reliability of frame pointers and kernel stack traces. 10 * 11 * For more information, see tools/objtool/Documentation/stack-validation.txt. 12 */ 13 #define STACK_FRAME_NON_STANDARD(func) \ 14 static void __used __section(.discard.func_stack_frame_non_standard) \ 15 *__func_stack_frame_non_standard_##func = func 16 17 #else /* !CONFIG_STACK_VALIDATION */ 18 19 #define STACK_FRAME_NON_STANDARD(func) 20 21 #endif /* CONFIG_STACK_VALIDATION */ 22 23 #endif /* _LINUX_FRAME_H */ 24