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      1 #!/bin/sh
      2 
      3 if [ $# -eq 1 ]  ; then
      4 	OUTPUT=$1
      5 fi
      6 
      7 GVF=${OUTPUT}PERF-VERSION-FILE
      8 
      9 LF='
     10 '
     11 
     12 #
     13 # First check if there is a .git to get the version from git describe
     14 # otherwise try to get the version from the kernel Makefile
     15 #
     16 CID=
     17 TAG=
     18 if test -d ../../.git -o -f ../../.git
     19 then
     20 	TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null )
     21 	CID=$(git log -1 --abbrev=4 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID"
     22 fi
     23 if test -z "$TAG"
     24 then
     25 	TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
     26 fi
     27 VN="$TAG$CID"
     28 if test -n "$CID"
     29 then
     30 	# format version string, strip trailing zero of sublevel:
     31 	VN=$(echo "$VN" | sed -e 's/-/./g;s/\([0-9]*[.][0-9]*\)[.]0/\1/')
     32 fi
     33 
     34 VN=$(expr "$VN" : v*'\(.*\)')
     35 
     36 if test -r $GVF
     37 then
     38 	VC=$(sed -e 's/^#define PERF_VERSION "\(.*\)"/\1/' <$GVF)
     39 else
     40 	VC=unset
     41 fi
     42 test "$VN" = "$VC" || {
     43 	echo >&2 "PERF_VERSION = $VN"
     44 	echo "#define PERF_VERSION \"$VN\"" >$GVF
     45 }
     46 
     47 
     48