linux-kernel - [PATCH 0/3] kbuild: clang-tidy

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Date:   Thu, 13 Aug 2020 02:39:55 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     linux-kbuild@...r.kernel.org
Cc:     Nathan Huckleberry <nhuck@...gle.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Roeder <tmroeder@...gle.com>,
        clang-built-linux@...glegroups.com,
        Masahiro Yamada <masahiroy@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Michal Marek <michal.lkml@...kovi.net>,
        Rob Herring <robh@...nel.org>, linux-kernel@...r.kernel.org
Subject: [PATCH 0/3] kbuild: clang-tidy


I improved gen_compile_commands.py in the first two patches,
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

I am not sure if the new directory, scripts/clang-tools/,
is worth creating only for 2 files, but I do not have
a strong opinion about it.

"make clang-tidy" should work in-tree build,
out-of-tree build (O=), and external module build (M=).
Tests and reviews are appreciated.

"make clang-tidy" worked for me.

masahiro@...ar:~/workspace/linux-kbuild$ make -j24 CC=clang clang-tidy
  DESCEND  objtool
  CALL    scripts/atomic/check-atomics.sh
  CALL    scripts/checksyscalls.sh
  CHK     include/generated/compile.h
  GEN     compile_commands.json
  CHECK   compile_commands.json

But "make clang-analyzer" just sprinkled the following error:

  Error: no checks enabled.
  USAGE: clang-tidy [options] <source0> [... <sourceN>]

I built clang-tidy from the latest source.
I had no idea how to make it work...

[1] https://patchwork.kernel.org/patch/11687833/



Masahiro Yamada (2):
  gen_compile_commands: parse only the first line of .*.cmd files
  gen_compile_commands: wire up build rule 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 | 117 +++++++++++++++
 scripts/clang-tools/run-clang-tools.py      |  74 ++++++++++
 scripts/gen_compile_commands.py             | 151 --------------------
 5 files changed, 233 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