linux-kernel - Re: [RFC PATCH 2/5] gen_initramfs.sh: use absolute path for gen_init

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Message-ID: <CAK7LNASTa+_d17wF6NW6GHC7Y+_RrXYZuo0MzzbsNnaRn8KJuQ@mail.gmail.com>
Date:   Thu, 19 Aug 2021 09:24:23 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Denis Efremov <efremov@...ux.com>
Cc:     "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-block@...r.kernel.org, Jens Axboe <axboe@...nel.dk>,
        Jiri Kosina <jkosina@...e.cz>, Willy Tarreau <w@....eu>
Subject: Re: [RFC PATCH 2/5] gen_initramfs.sh: use absolute path for gen_init_cpio

On Thu, Aug 19, 2021 at 12:47 AM Denis Efremov <efremov@...ux.com> wrote:
>
> Use absolute path to call gen_init_cpio. This allows one
> to use gen_initramfs.sh from any directory.

I do not mind this, but $(dirname "$0")
is not necessarily an absolute path, is it?


I added test code:

   echo dirname is $(dirname $0)

in this script, and I saw

   dirname is usr




>
> Cc: Masahiro Yamada <masahiroy@...nel.org>
> Signed-off-by: Denis Efremov <efremov@...ux.com>
> ---
>  usr/gen_initramfs.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/usr/gen_initramfs.sh b/usr/gen_initramfs.sh
> index 63476bb70b41..2e4a86181c79 100755
> --- a/usr/gen_initramfs.sh
> +++ b/usr/gen_initramfs.sh
> @@ -244,4 +244,4 @@ if test -n "$KBUILD_BUILD_TIMESTAMP"; then
>                 timestamp="-t $timestamp"
>         fi
>  fi
> -usr/gen_init_cpio $timestamp $cpio_list > $output
> +"$(dirname "$0")"/gen_init_cpio $timestamp $cpio_list > $output
> --
> 2.31.1
>


--
Best Regards
Masahiro Yamada