linux-kernel - Re: [PATCH v3 0/2] scripts: Resolve gtags empty index generation

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Message-ID: <CAK7LNASPnxnoUmzg43YDcCGP4uor=VO96bmZu3gh3av2BO9wOg@mail.gmail.com>
Date:   Sun, 21 May 2023 07:41:12 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     "Ahmed S. Darwish" <darwi@...utronix.de>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Nicolas Schier <nicolas@...sle.eu>,
        Jonathan Corbet <corbet@....net>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kbuild@...r.kernel.org, linux-doc@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/2] scripts: Resolve gtags empty index generation

On Tue, May 16, 2023 at 2:33 AM Ahmed S. Darwish <darwi@...utronix.de> wrote:
>
> Hi,
>
> v3-changelog
> ------------
>
> Handle review remarks from Masahiro Yamada:
>
>   - Apply shellcheck on new "scripts/tags.sh" code.
>
>   - Shorten code through shell's "default value" parameter expansion.
>
> NEW:
>
>   - Cc docs maintainer (Documentation/process/changes.rst change).
>
> Thanks!
>
> v2-changelog
> ------------
>
> https://lkml.kernel.org/r/20230509012616.81579-1-darwi@linutronix.de
>
> Handle review remarks from Masahiro Yamada:
>
>   - scripts/tags.sh: remove the O= language, and focus on the general
>     case of the build directory being different from the kernel source
>     tree, as specified in kernel Makefile L159.
>
>   - Fix failure when build directory is a subdirectory of the kernel
>     source tree.
>
> NEW:
>
>   - Update Documentation/process/changes.rst with new gtags (GNU GLOBAL)
>     requirements.
>
> Thanks!
>
> Cover letter / v1
> -----------------
>
> https://lkml.kernel.org/r/20230504201833.202494-1-darwi@linutronix.de
>
> make gtags for O= kernel builds is currently broken. For example, when doing:
>
>    make O=../build/ x86_64_defconfig
>    make O=../build/ gtags
>
> gtags generates a warning for each kernel source file to be indexed:
>
>    make[1]: Entering directory '/home/darwi/build'
>      GEN     gtags
>    Warning: '/home/darwi/linux/arch/x86/include/asm/qspinlock.h' is out of source tree. ignored.
>    Warning: '/home/darwi/linux/arch/x86/include/asm/hpet.h' is out of source tree. ignored.
>    ...
>    Warning: '/home/darwi/linux/virt/lib/irqbypass.c' is out of source tree. ignored.
>    make[1]: Leaving directory '/home/darwi/build/'
>
> and then generates an empty index:
>
>    $ du -hs ~/build/G*
>    16K  /home/darwi/build/GPATH
>    16K  /home/darwi/build/GRTAGS
>    16K  /home/darwi/build/GTAGS
>
> This series includes a proposed fix. After applying it:
>
>    $ make O=../build/ gtags
>    make[1]: Entering directory '/home/darwi/build'
>      GEN     gtags
>    make[1]: Leaving directory '/home/darwi/build'
>
>    $ du -hs ~/build/G*
>    9.1M /home/darwi/build/GPATH
>    506M /home/darwi/build/GRTAGS
>    696M /home/darwi/build/GTAGS
>
> The generated files can then be integrated with editors or IDEs as
> usual.
>
> =>
>
> Ahmed S. Darwish (2):
>   scripts/tags.sh: Resolve gtags empty index generation
>   docs: Set minimal gtags / GNU GLOBAL version to 6.6.5


Both applied. Thanks.




>
>  Documentation/process/changes.rst | 7 +++++++
>  scripts/tags.sh                   | 9 ++++++++-
>  2 files changed, 15 insertions(+), 1 deletion(-)
>
> base-commit: f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6
> --
> 2.30.2



-- 
Best Regards
Masahiro Yamada