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-rwxr-xr-xtools/perf/util/PERF-VERSION-GEN21
1 files changed, 15 insertions, 6 deletions
diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN
index 055fef3..15a77b7 100755
--- a/tools/perf/util/PERF-VERSION-GEN
+++ b/tools/perf/util/PERF-VERSION-GEN
@@ -13,13 +13,22 @@ LF='
# First check if there is a .git to get the version from git describe
# otherwise try to get the version from the kernel Makefile
#
-if test -d ../../.git -o -f ../../.git &&
- VN=$(git tag 2>/dev/null | tail -1 | grep -E "v[0-9].[0-9]*")
+CID=
+TAG=
+if test -d ../../.git -o -f ../../.git
then
- VN=$(echo $VN"-g"$(git log -1 --abbrev=4 --pretty=format:"%h" HEAD))
- VN=$(echo "$VN" | sed -e 's/-/./g');
-else
- VN=$(MAKEFLAGS= make -sC ../.. kernelversion)
+ TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null )
+ CID=$(git log -1 --abbrev=4 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID"
+fi
+if test -z "$TAG"
+then
+ TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
+fi
+VN="$TAG$CID"
+if test -n "$CID"
+then
+ # format version string, strip trailing zero of sublevel:
+ VN=$(echo "$VN" | sed -e 's/-/./g;s/\([0-9]*[.][0-9]*\)[.]0/\1/')
fi
VN=$(expr "$VN" : v*'\(.*\)')
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