[PATCH 0/3] kbuild: clang-tidy

From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: Nathan Huckleberry <nhuck@google.com>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Tom Roeder <tmroeder@google.com>,
	clang-built-linux@googlegroups.com,
	Masahiro Yamada <masahiroy@kernel.org>,
	"David S. Miller" <davem@davemloft.net>,
	Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
	Michal Marek <michal.lkml@markovi.net>,
	Rob Herring <robh@kernel.org>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 0/3] kbuild: clang-tidy
Date: Thu, 13 Aug 2020 02:39:55 +0900	[thread overview]
Message-ID: <20200812173958.2307251-1-masahiroy@kernel.org> (raw)

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@oscar:~/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