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arm64: entry: Add SYM_CODE annotation for __bad_stack

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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>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210804181710.19059-1-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Mark Brown 2021-08-04 19:17:10 +01:00 committed by Catalin Marinas
parent 312b7104f3
commit ede3241a5f
1 changed files with 3 additions and 1 deletions
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4
arch/arm64/kernel/entry.S
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@ -517,12 +517,13 @@ 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
@ -542,6 +543,7 @@ __bad_stack:
/* Time to die */
bl handle_bad_stack
ASM_BUG()
SYM_CODE_END(__bad_stack)
#endif /* CONFIG_VMAP_STACK */