1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3
4 if [ $# -eq 1 ] ; then
5 OUTPUT=$1
6 fi
7
8 GVF=${OUTPUT}PERF-VERSION-FILE
9
10 LF='
11 '
12
13 #
14 # Use version from kernel Makefile unless not in a git repository and
15 # PERF-VERSION-FILE exists
16 #
17 CID=
18 TAG=
19 if test -d ../../.git -o -f ../../.git
20 then
21 TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
22 CID=$(git log -1 --abbrev=12 --pretty=format:"%h" --no-show-signature 2>/dev/null) && CID="-g$CID"
23 elif test -f ../../PERF-VERSION-FILE
24 then
25 TAG=$(cut -d' ' -f3 ../../PERF-VERSION-FILE | sed -e 's/\"//g')
26 fi
27 if test -z "$TAG"
28 then
29 TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
30 fi
31
32 VN="$TAG$CID"
33 if test -n "$CID"
34 then
35 # format version string, strip trailing zero of sublevel:
36 VN=$(echo "$VN" | sed -e 's/-/./g;s/\([0-9]*[.][0-9]*\)[.]0/\1/')
37 fi
38
39 VN=$(expr "$VN" : v*'\(.*\)')
40
41 if test -r $GVF
42 then
43 VC=$(sed -e 's/^#define PERF_VERSION "\(.*\)"/\1/' <$GVF)
44 else
45 VC=unset
46 fi
47 test "$VN" = "$VC" || {
48 echo >&2 " PERF_VERSION = $VN"
49 echo "#define PERF_VERSION \"$VN\"" >$GVF
50 }
51
52
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