| #!/bin/sh | 
 | # SPDX-License-Identifier: GPL-2.0 | 
 |  | 
 | if [ $# -eq 1 ]  ; then | 
 | 	OUTPUT=$1 | 
 | fi | 
 |  | 
 | GVF=${OUTPUT}PERF-VERSION-FILE | 
 |  | 
 | LF=' | 
 | ' | 
 |  | 
 | # | 
 | # Use version from kernel Makefile unless not in a git repository and | 
 | # PERF-VERSION-FILE exists | 
 | # | 
 | CID= | 
 | TAG= | 
 | if test -d ../../.git -o -f ../../.git | 
 | then | 
 | 	TAG=$(MAKEFLAGS= make -sC ../.. kernelversion) | 
 | 	CID=$(git log -1 --abbrev=12 --pretty=format:"%h" --no-show-signature 2>/dev/null) && CID="-g$CID" | 
 | elif test -f ../../PERF-VERSION-FILE | 
 | then | 
 | 	TAG=$(cut -d' ' -f3 ../../PERF-VERSION-FILE | sed -e 's/\"//g') | 
 | 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*'\(.*\)') | 
 |  | 
 | if test -r $GVF | 
 | then | 
 | 	VC=$(sed -e 's/^#define PERF_VERSION "\(.*\)"/\1/' <$GVF) | 
 | else | 
 | 	VC=unset | 
 | fi | 
 | test "$VN" = "$VC" || { | 
 | 	echo >&2 "  PERF_VERSION = $VN" | 
 | 	echo "#define PERF_VERSION \"$VN\"" >$GVF | 
 | } | 
 |  | 
 |  |