[PATCH 0/3] kbuild: clang-tidy

From: Masahiro Yamada
Date: Wed Aug 12 2020 - 13:41:28 EST

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

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