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 <raphael.ga...@arm.com>
---
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 c5308d01e228..8948474a9bcb 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -760,4 +760,17 @@ 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
