linux-kernel - [PATCH] scripts/tags.sh: improve compiled sources generation

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Message-Id: <20230601010402.71040-1-xujialu@vimux.org>
Date:   Thu,  1 Jun 2023 09:04:02 +0800
From:   Jialu Xu <xujialu@...ux.org>
To:     gregkh@...uxfoundation.org, cristian.ciocaltea@...labora.com,
        masahiroy@...nel.org, vipinsh@...gle.com, cmllamas@...gle.com
Cc:     linux-kernel@...r.kernel.org, Jialu Xu <xujialu@...ux.org>
Subject: [PATCH] scripts/tags.sh: improve compiled sources generation

Use grep instead of sed for all compiled sources generation, it is three
times more efficient.

Signed-off-by: Jialu Xu <xujialu@...ux.org>
---
 scripts/tags.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/tags.sh b/scripts/tags.sh
index ea31640b2671..938dba219534 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -98,7 +98,7 @@ all_compiled_sources()
 	{
 		echo include/generated/autoconf.h
 		find $ignore -name "*.cmd" -exec \
-			sed -n -E 's/^source_.* (.*)/\1/p; s/^  (\S.*) \\/\1/p' {} \+ |
+			grep -Poh '(?<=^  )\S+|(?<== )\S+[^\\](?=$)' {} \+ |
 		awk '!a[$0]++'
 	} | xargs realpath -esq $([ -z "$KBUILD_ABS_SRCTREE" ] && echo --relative-to=.) |
 	sort -u
-- 
2.30.2