linux-kernel - Re: [PATCH v2 0/9] kbuild: clang-tidy

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Date:   Sat, 22 Aug 2020 03:12:25 +0200
From:   Sedat Dilek <sedat.dilek@...il.com>
To:     Nick Desaulniers <ndesaulniers@...gle.com>
Cc:     Masahiro Yamada <masahiroy@...nel.org>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Nathan Huckleberry <nhuck@...gle.com>,
        Tom Roeder <tmroeder@...gle.com>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/9] kbuild: clang-tidy

On Sat, Aug 22, 2020 at 3:06 AM 'Nick Desaulniers' via Clang Built
Linux <clang-built-linux@...glegroups.com> wrote:
>
> On Fri, Aug 21, 2020 at 12:02 PM Masahiro Yamada <masahiroy@...nel.org> wrote:
> >
> > I improved gen_compile_commands.py,
> > then rebased Nathan's v7 [1] on top of them.
> > To save time, I modified the Makefile part.
> > No change for run-clang-tools.py
> >
> > "make clang-tidy" should work in-tree build,
> > out-of-tree build (O=), and external module build (M=).
> >
> > This version keeps the previous work-flow.
> > You can still manually run scripts/gen_compile_commands.json
> >
> > 'make compile_commands.json' or 'make clang-tidy' is handier
> > for most cases. As Nick noted, there is 3 % loss of the coverage.
> >
> > If you need the full compilation database that covers all the
> > compiled C files, please run the script manually.
> >
> > [1] https://patchwork.kernel.org/patch/11687833/
>
> Thank you for the work that went into this series.  The only reason I
> started focusing on compiling the kernel with Clang 3.5 years ago was
> that I simply wanted to run scan-build (clang's static analyzer,
> enabled by this series) on the kernel to find bugs to start
> contributing fixes for.  Turned out compiling the kernel with Clang
> was a prerequisite, and I've been distracted with that ever since.
> Thank you both for completing this journey.

/me donates Nick a "EoJ" (End Of Journey)

- Sedat -

>
> >
> > Masahiro Yamada (8):
> >   gen_compile_commands: parse only the first line of .*.cmd files
> >   gen_compile_commands: use choices for --log_levels option
> >   gen_compile_commands: do not support .cmd files under tools/ directory
> >   gen_compile_commands: reword the help message of -d option
> >   gen_compile_commands: make -o option independent of -d option
> >   gen_compile_commands: move directory walk to a generator function
> >   gen_compile_commands: support *.o, *.a, modules.order in positional
> >     argument
> >   kbuild: wire up the build rule of compile_commands.json to Makefile
> >
> > Nathan Huckleberry (1):
> >   Makefile: Add clang-tidy and static analyzer support to makefile
> >
> >  MAINTAINERS                                 |   1 +
> >  Makefile                                    |  45 +++-
> >  scripts/clang-tools/gen_compile_commands.py | 245 ++++++++++++++++++++
> >  scripts/clang-tools/run-clang-tools.py      |  74 ++++++
> >  scripts/gen_compile_commands.py             | 151 ------------
> >  5 files changed, 361 insertions(+), 155 deletions(-)
> >  create mode 100755 scripts/clang-tools/gen_compile_commands.py
> >  create mode 100755 scripts/clang-tools/run-clang-tools.py
> >  delete mode 100755 scripts/gen_compile_commands.py
> >
> > --
> > 2.25.1
> >
>
>
> --
> Thanks,
> ~Nick Desaulniers
>
> --
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