1#!/bin/sh
2
3if [ $# -eq 1 ]  ; then
4	OUTPUT=$1
5fi
6
7GVF=${OUTPUT}PERF-VERSION-FILE
8
9LF='
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#
16CID=
17TAG=
18if test -d ../../.git -o -f ../../.git
19then
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$CID"
22fi
23if test -z "$TAG"
24then
25	TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
26fi
27VN="$TAG$CID"
28if test -n "$CID"
29then
30	# format version string, strip trailing zero of sublevel:
31	VN=$(echo "$VN" | sed -e 's/-/./g;s/\([0-9]*[.][0-9]*\)[.]0/\1/')
32fi
33
34VN=$(expr "$VN" : v*'\(.*\)')
35
36if test -r $GVF
37then
38	VC=$(sed -e 's/^#define PERF_VERSION "\(.*\)"/\1/' <$GVF)
39else
40	VC=unset
41fi
42test "$VN" = "$VC" || {
43	echo >&2 "PERF_VERSION = $VN"
44	echo "#define PERF_VERSION \"$VN\"" >$GVF
45}
46
47
48