linux-kernel - Re: [PATCH v1] kbuild: Use '-f' instead of '--file=' for grep

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Date:   Fri, 28 Oct 2022 00:26:06 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Will McVicker <willmcvicker@...gle.com>
Cc:     Michal Marek <michal.lkml@...kovi.net>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        kernel-team@...roid.com, linux-kbuild@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] kbuild: Use '-f' instead of '--file=' for grep

On Wed, Oct 26, 2022 at 5:18 AM Will McVicker <willmcvicker@...gle.com> wrote:
>
> The posix grep utility doesn't support the longer '--file=pattern_file'
> command line option which was introduced in commit ce697ccee1a8
> ("kbuild: remove head-y syntax"). Let's update Makefile to use '-f
> pattern_file' to fix the compiling error:
>
>   grep: Unknown option 'file=.../scripts/head-object-list.txt'
>   (see "grep --help")
>
> Signed-off-by: Will McVicker <willmcvicker@...gle.com>


Thanks, but I had already picked up a similar patch.


https://lore.kernel.org/linux-kbuild/20221017150113.334571-1-newbie13xd@gmail.com/



> ---
>  Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> base-commit: 1a2dcbdde82e3a5f1db9b2f4c48aa1aeba534fb2
>
> diff --git a/Makefile b/Makefile
> index d148a55bfd0f..e90bb2b38607 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1218,7 +1218,7 @@ quiet_cmd_ar_vmlinux.a = AR      $@
>        cmd_ar_vmlinux.a = \
>         rm -f $@; \
>         $(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \
> -       $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -F --file=$(srctree)/scripts/head-object-list.txt)
> +       $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -F -f $(srctree)/scripts/head-object-list.txt)
>
>  targets += vmlinux.a
>  vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt autoksyms_recursive FORCE
> --
> 2.38.0.135.g90850a2211-goog
>


-- 
Best Regards
Masahiro Yamada