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    Subject[PATCH v6 02/16] powerpc: Override __ALIGN and __ALIGN_STR macros
    Date
    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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