Commit ede3241a authored by Mark Brown's avatar Mark Brown Committed by Catalin Marinas
Browse files

arm64: entry: Add SYM_CODE annotation for __bad_stack 



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: default avatarMark Brown <broonie@kernel.org>
Acked-by: default avatarWill Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210804181710.19059-1-broonie@kernel.org


Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 312b7104

arch/arm64/kernel/entry.S

+3 −1
Original line number Diff line number Diff line
@@ -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 */