arm64: vdso: remove two .altinstructions related symbols

xhackerustc · willdeacon · commit a96a7a7ddf95 · 2023-07-27T12:32:43.000+01:00
The two symbols __alt_instructions and __alt_instructions_end are not used, since the vDSO patching code looks for the '.altinstructions' ELF section directly. Remove the unused linker symbols. Fixes: 4e3bca8 ("arm64: alternative: patch alternatives in the vDSO") Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Link: https://lore.kernel.org/r/20230726173619.3732-1-jszhang@kernel.org Signed-off-by: Will Deacon <will@kernel.org>
diff --git a/arch/arm64/kernel/vdso/vdso.lds.S b/arch/arm64/kernel/vdso/vdso.lds.S
@@ -50,9 +50,7 @@ SECTIONS
 
 	. = ALIGN(4);
 	.altinstructions : {
-		__alt_instructions = .;
 		*(.altinstructions)
-		__alt_instructions_end = .;
 	}
 
 	.dynamic	: { *(.dynamic) }		:text	:dynamic

Original file line number	Diff line number	Diff line change
`@@ -50,9 +50,7 @@ SECTIONS`
`50`	`50`
`51`	`51`	`. = ALIGN(4);`
`52`	`52`	`.altinstructions : {`
`53`		`- __alt_instructions = .;`
`54`	`53`	`*(.altinstructions)`
`55`		`- __alt_instructions_end = .;`
`56`	`54`	`}`
`57`	`55`
`58`	`56`	`.dynamic : { *(.dynamic) } :text :dynamic`