| #!/bin/sh | 
 |  | 
 | if [ $# -eq 1 ]  ; then | 
 | 	OUTPUT=$1 | 
 | fi | 
 |  | 
 | GVF=${OUTPUT}PERF-VERSION-FILE | 
 |  | 
 | 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=$(git describe --abbrev=4 HEAD 2>/dev/null) && | 
 | 	case "$VN" in | 
 | 	*$LF*) (exit 1) ;; | 
 | 	v[0-9]*) | 
 | 		git update-index -q --refresh | 
 | 		test -z "$(git diff-index --name-only HEAD --)" || | 
 | 		VN="$VN-dirty" ;; | 
 | 	esac | 
 | then | 
 | 	VN=$(echo "$VN" | sed -e 's/-/./g'); | 
 | else | 
 | 	VN=$(MAKEFLAGS= make -sC ../.. kernelversion) | 
 | fi | 
 |  | 
 | VN=$(expr "$VN" : v*'\(.*\)') | 
 |  | 
 | if test -r $GVF | 
 | then | 
 | 	VC=$(sed -e 's/^PERF_VERSION = //' <$GVF) | 
 | else | 
 | 	VC=unset | 
 | fi | 
 | test "$VN" = "$VC" || { | 
 | 	echo >&2 "PERF_VERSION = $VN" | 
 | 	echo "PERF_VERSION = $VN" >$GVF | 
 | } | 
 |  | 
 |  |