Re: [PATCH v2] scripts/checkstack.pl: Fix arm64 wrong or unknown architecture

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On Mon, Jun 3, 2019 at 11:31 PM George G. Davis <george_davis@xxxxxxxxxx> wrote:
>
> The following error occurs for the `make ARCH=arm64 checkstack` case:
>
> aarch64-linux-gnu-objdump -d vmlinux $(find . -name '*.ko') | \
> perl ./scripts/checkstack.pl arm64
> wrong or unknown architecture "arm64"
>
> As suggested by Masahiro Yamada, fix the above error using regular
> expressions in the same way it was fixed for the `ARCH=x86` case via
> commit fda9f9903be6 ("scripts/checkstack.pl: automatically handle
> 32-bit and 64-bit mode for ARCH=x86").
>
> Suggested-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> Signed-off-by: George G. Davis <george_davis@xxxxxxxxxx>
> ---

Applied to linux-kbuild/fixes. Thanks.

> v1:
> - https://patchwork.kernel.org/patch/10970393/
> v2:
> - Updates as Suggested-by: Masahiro Yamada
> - Update commit subject due to moving the fix from Makefile to
>   checkstack.pl
> ---
>  scripts/checkstack.pl | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
> index 122aef5e4e14..371bd17a4983 100755
> --- a/scripts/checkstack.pl
> +++ b/scripts/checkstack.pl
> @@ -46,7 +46,7 @@ my (@stack, $re, $dre, $x, $xs, $funcre);
>         $x      = "[0-9a-f]";   # hex character
>         $xs     = "[0-9a-f ]";  # hex character or space
>         $funcre = qr/^$x* <(.*)>:$/;
> -       if ($arch eq 'aarch64') {
> +       if ($arch =~ '^(aarch|arm)64$') {
>                 #ffffffc0006325cc:       a9bb7bfd        stp     x29, x30, [sp, #-80]!
>                 #a110:       d11643ff        sub     sp, sp, #0x590
>                 $re = qr/^.*stp.*sp, \#-([0-9]{1,8})\]\!/o;
> --
> 2.7.4
>


-- 
Best Regards
Masahiro Yamada



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