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LoongArch: Use UNWIND_HINT_END_OF_STACK for entry points

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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>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Tiezhu Yang 2025-12-31 15:19:10 +08:00 committed by Huacai Chen
parent d5be446948
commit 1b2f4706c6
1 changed files with 2 additions and 0 deletions
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arch/loongarch/kernel/head.S
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@ -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