[patch 008/163] scripts/tags.sh: collect compiled source precisely

Andrew Morton
2020-08-07T06:17:32Z

From: Jialu Xu <xujialu@vimux.org>
Subject: scripts/tags.sh: collect compiled source precisely

Parse compiled source from *.cmd but don't 'find' too many files that are
not related to compilation.

[xujialu@vimux.org: don't expand symlinks by add option -s for realpath]
Link: http://lkml.kernel.org/r/5efc5bfb.1c69fb81.41bf5.7131SMTPIN_ADDED_MISSING@mx.google.com
Link: http://lkml.kernel.org/r/5ee5d8e3.1c69fb81.9b804.47b2SMTPIN_ADDED_MISSING@mx.google.com
Signed-off-by: Jialu Xu <xujialu@vimux.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

scripts/tags.sh | 18 ++++--------------
1 file changed, 4 insertions(+), 14 deletions(-)

--- a/scripts/tags.sh~scripts-tagssh-collect-compiled-source-precisely
+++ a/scripts/tags.sh
@@ -91,20 +91,10 @@ all_sources()

all_compiled_sources()
{
- for i in $(all_sources); do
- case "$i" in
- *.[cS])
- j=${i/\.[cS]/\.o}
- j="${j#$tree}"
- if [ -e $j ]; then
- echo $i
- fi
- ;;
- *)
- echo $i
- ;;
- esac
- done
+ realpath -es $([ -z "$KBUILD_ABS_SRCTREE" ] && echo --relative-to=.) \
+ include/generated/autoconf.h $(find -name "*.cmd" -exec \
+ grep -Poh '(?(?=^source_.* \K).*|(?=^ \K\S).*(?= \\))' {} \+ |
+ awk '!a[$0]++') | sort -u
}

all_target_sources()
_