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TOMOYO Linux Cross Reference
Linux/include/linux/frame.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _LINUX_FRAME_H
  3 #define _LINUX_FRAME_H
  4 
  5 #ifdef CONFIG_STACK_VALIDATION
  6 /*
  7  * This macro marks the given function's stack frame as "non-standard", which
  8  * tells objtool to ignore the function when doing stack metadata validation.
  9  * It should only be used in special cases where you're 100% sure it won't
 10  * affect the reliability of frame pointers and kernel stack traces.
 11  *
 12  * For more information, see tools/objtool/Documentation/stack-validation.txt.
 13  */
 14 #define STACK_FRAME_NON_STANDARD(func) \
 15         static void __used __section(.discard.func_stack_frame_non_standard) \
 16                 *__func_stack_frame_non_standard_##func = func
 17 
 18 #else /* !CONFIG_STACK_VALIDATION */
 19 
 20 #define STACK_FRAME_NON_STANDARD(func)
 21 
 22 #endif /* CONFIG_STACK_VALIDATION */
 23 
 24 #endif /* _LINUX_FRAME_H */
 25 

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