The C version of STACK_FRAME_NON_STANDARD differs from its asm
counterpart in that it creates eight-byte entries (vs four) and creates
a superfluous temporary variable.
Make the entry sizes consistent by converting the C version to four byte
entries.
Signed-off-by: Josh Poimboeuf <jpoim...@kernel.org>
---
include/linux/objtool.h | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/include/linux/objtool.h b/include/linux/objtool.h
index 483dd3131826..d4137a46ee70 100644
--- a/include/linux/objtool.h
+++ b/include/linux/objtool.h
@@ -33,9 +33,10 @@
*
* For more information, see tools/objtool/Documentation/objtool.txt.
*/
-#define STACK_FRAME_NON_STANDARD(func) \
- static void __used __section(".discard.func_stack_frame_non_standard") \
- *__func_stack_frame_non_standard_##func = func
+#define STACK_FRAME_NON_STANDARD(func)
\
+ asm(".pushsection .discard.func_stack_frame_non_standard, \"aw\"\n\t"
\
+ ".long " __stringify(func) " - .\n\t"
\
+ ".popsection")
/*
* STACK_FRAME_NON_STANDARD_FP() is a frame-pointer-specific function ignore
--
2.49.0
