Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2160559
Tested: Kernel booted on Orin board with no warnings using device tree
commit a4ab14e1d8fe83cc1ed8910b788117ec2ed25179
Author: John Hubbard <jhubbard@nvidia.com>
Date: Mon Jun 27 18:23:53 2022 -0700
gen_compile_commands: handle multiple lines per .mod file
scripts/clang-tools/gen_compile_commands.py incorrectly assumes that
each .mod file only contains one line. That assumption was correct when
the script was originally created, but commit 9413e7640564 ("kbuild:
split the second line of *.mod into *.usyms") changed the .mod file
format so that there is one entry per line, and potentially many lines.
The problem can be reproduced by using Kbuild to generate
compile_commands.json, like this:
make CC=clang compile_commands.json
In many cases, the problem might be overlooked because many subsystems
only have one line anyway. However, in some subsystems (Nouveau, with
762 entries, is a notable example) it results in skipping most of the
subsystem.
Fix this by fully processing each .mod file.
Fixes: 9413e7640564 ("kbuild: split the second line of *.mod into *.usyms")
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
(cherry picked from commit a4ab14e1d8fe83cc1ed8910b788117ec2ed25179)
Signed-off-by: Joel Slebodnick <jslebodn@redhat.com>
5ac12bed5e