kernel_entry() and smpboot_entry() are the last frames for ORC unwinder,
so it is proper to use the annotation UNWIND_HINT_END_OF_STACK for them.
Link: https://lore.kernel.org/lkml/ots6w2ntyudj5ucs5eowncta2vmfssatpcqwzpar3ekk577hxi@j45dd4dmwx6x/
Suggested-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
arch/loongarch/kernel/head.S | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/loongarch/kernel/head.S b/arch/loongarch/kernel/head.S
index aba548db2446..ce7f6c04f4ab 100644
--- a/arch/loongarch/kernel/head.S
+++ b/arch/loongarch/kernel/head.S
@@ -42,6 +42,7 @@ SYM_DATA(kernel_fsize, .long _kernel_fsize);
.align 12
SYM_CODE_START(kernel_entry) # kernel entry point
+ UNWIND_HINT_END_OF_STACK
SETUP_TWINS
SETUP_MODES t0
@@ -113,6 +114,7 @@ SYM_CODE_END(kernel_entry)
* function after setting up the stack and tp registers.
*/
SYM_CODE_START(smpboot_entry)
+ UNWIND_HINT_END_OF_STACK
SETUP_TWINS
SETUP_MODES t0
--
2.42.0