/* SPDX-License-Identifier: GPL-2.0 */
|
#ifndef _LINUX_FRAME_H
|
#define _LINUX_FRAME_H
|
|
#ifdef CONFIG_STACK_VALIDATION
|
/*
|
* This macro marks the given function's stack frame as "non-standard", which
|
* tells objtool to ignore the function when doing stack metadata validation.
|
* It should only be used in special cases where you're 100% sure it won't
|
* affect the reliability of frame pointers and kernel stack traces.
|
*
|
* For more information, see tools/objtool/Documentation/stack-validation.txt.
|
*/
|
#define STACK_FRAME_NON_STANDARD(func) \
|
static void __used __section(.discard.func_stack_frame_non_standard) \
|
*__func_stack_frame_non_standard_##func = func
|
|
#else /* !CONFIG_STACK_VALIDATION */
|
|
#define STACK_FRAME_NON_STANDARD(func)
|
|
#endif /* CONFIG_STACK_VALIDATION */
|
|
#endif /* _LINUX_FRAME_H */
|
