Some functions don't have standard stack-frames but are intended this way. In order for objtool to ignore those particular cases we add a macro that enables us to annotate the cases we chose to mark as particular.
Signed-off-by: Raphael Gault <[email protected]> --- arch/arm64/include/asm/assembler.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index 570d195a184d..969a59c5c276 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -752,4 +752,17 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU .Lyield_out_\@ : .endm + /* + * This macro is the arm64 assembler equivalent of the + * macro STACK_FRAME_NON_STANDARD define at + * ~/include/linux/frame.h + */ + .macro asm_stack_frame_non_standard func +#ifdef CONFIG_STACK_VALIDATION + .pushsection ".discard.func_stack_frame_non_standard" + .8byte \func + .popsection +#endif + .endm + #endif /* __ASM_ASSEMBLER_H */ -- 2.17.1
