[PATCH] arm64: entry: Add SYM_CODE annotation for __bad_stack
From: Mark Brown <broonie@kernel.org>
Date: 2021-08-04 18:19:08
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
When converting arm64 to modern assembler annotations __bad_stack was left as a raw local label without annotations. While this will have little if any practical impact at present it may cause issues in the future if we start using the annotations for things like reliable stack trace. Add SYM_CODE annotations to fix this. Signed-off-by: Mark Brown <broonie@kernel.org> --- arch/arm64/kernel/entry.S | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 923ee2ac85fd..572f72f20646 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S@@ -535,12 +535,13 @@ SYM_CODE_START(vectors) SYM_CODE_END(vectors) #ifdef CONFIG_VMAP_STACK +SYM_CODE_START_LOCAL(__bad_stack) /* * We detected an overflow in kernel_ventry, which switched to the * overflow stack. Stash the exception regs, and head to our overflow * handler. */ -__bad_stack: + /* Restore the original x0 value */ mrs x0, tpidrro_el0
@@ -560,6 +561,7 @@ __bad_stack: /* Time to die */ bl handle_bad_stack ASM_BUG() +SYM_CODE_END(__bad_stack) #endif /* CONFIG_VMAP_STACK */
--
2.20.1
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