Messages in this thread Patch in this message | | | From | Sathvika Vasireddy <> | Subject | [PATCH v6 02/16] powerpc: Override __ALIGN and __ALIGN_STR macros | Date | Mon, 14 Nov 2022 23:27:40 +0530 |
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In a subsequent patch, we would want to annotate powerpc assembly functions with SYM_FUNC_START_LOCAL macro. This macro depends on __ALIGN macro.
The default expansion of __ALIGN macro is: #define __ALIGN .align 4,0x90
So, override __ALIGN and __ALIGN_STR macros to use the same alignment as that of the existing _GLOBAL macro. Also, do not pad with 0x90, because repeated 0x90s are not a nop or trap on powerpc.
Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Sathvika Vasireddy <sv@linux.ibm.com> --- arch/powerpc/include/asm/linkage.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/include/asm/linkage.h b/arch/powerpc/include/asm/linkage.h index b71b9582e754..b88d1d2cf304 100644 --- a/arch/powerpc/include/asm/linkage.h +++ b/arch/powerpc/include/asm/linkage.h @@ -4,6 +4,9 @@ #include <asm/types.h> +#define __ALIGN .align 2 +#define __ALIGN_STR ".align 2" + #ifdef CONFIG_PPC64_ELF_ABI_V1 #define cond_syscall(x) \ asm ("\t.weak " #x "\n\t.set " #x ", sys_ni_syscall\n" \ -- 2.31.1
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