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scripts/tags.sh: fix direct execution of scripts/tags.sh

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I thought this script was run via "make tags" etc. but some people
run it directly.

Prior to commit a9a49c2ad9 ("kbuild: use $(srctree) instead of
KBUILD_SRC to check out-of-tree build"), in such a usecase, "tree"
was set empty since KBUILD_SRC is undefined. Now, "tree" is set to
"${srctree}/", which is evaluated to "/".

Fix it by taking into account the case where "srctree" is unset.

Link: https://lkml.org/lkml/2019/4/19/501
Fixes: a9a49c2ad9 ("kbuild: use $(srctree) instead of KBUILD_SRC to check out-of-tree build")
Reported-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2019-04-29 13:06:43 +09:00
parent e46b94d228
commit c69ef1c87b
1 changed files with 1 additions and 1 deletions
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2
scripts/tags.sh
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@ -19,7 +19,7 @@ ignore="$ignore ( -name *.mod.c ) -prune -o"
# Do not use full path if we do not use O=.. builds
# Use make O=. {tags|cscope}
# to force full paths for a non-O= build
if [ "${srctree}" = "." ]; then
if [ "${srctree}" = "." -o -z "${srctree}" ]; then
tree=
else
tree=${srctree}/