forked from Minki/linux
81935f10e6
When perf is built in a full source tree that is not a git repository,
e.g. from a kernel source tarball, `perf version` will print empty tag
and commit strings:
$ perf version
perf version
Currently the tag version is only generated from the root Makefile when
building in a git repository. If PERF-VERSION-FILE has not been
generated and the source tree is not in a git repository, then
PERF-VERSION-GEN will return an empty version.
The problem can be reproduced with the following steps:
$ wget https://git.kernel.org/torvalds/t/linux-6.0-rc7.tar.gz
$ tar -xf linux-6.0-rc7.tar.gz && cd linux-6.0-rc7
$ make -C tools/perf
$ tools/perf/perf -v
perf version
Builds from tarballs generated with `make perf-tar-src-pkg` are not
impacted by this issue as PERF-VERSION-FILE is included in the archive.
The perf RPM provided by Fedora for 5.18+ is experiencing this problem.
Package build logs[0] show that the build is attempting to fall back on
PERF-VERSION-FILE, but it is not present.
To resolve this, revert back to the previous logic of using the kernel
Makefile version if not in a git repository and PERF-VERSION-FILE does
not exist.
[0] https://kojipkgs.fedoraproject.org/packages/kernel-tools/5.19.4/200.fc36/data/logs/x86_64/build.log
Fixes: 7572733b84 ("perf tools: Fix version kernel tag")
Reviewed-by: John Garry <john.garry@huawei.com>
Signed-off-by: Will Chandler <wfc@wfchandler.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220930151157.529674-1-wfc@wfchandler.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
53 lines
993 B
Bash
Executable File
53 lines
993 B
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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if [ $# -eq 1 ] ; then
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OUTPUT=$1
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fi
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GVF=${OUTPUT}PERF-VERSION-FILE
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LF='
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'
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#
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# Use version from kernel Makefile unless not in a git repository and
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# PERF-VERSION-FILE exists
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#
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CID=
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TAG=
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if test -d ../../.git -o -f ../../.git
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then
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TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
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CID=$(git log -1 --abbrev=12 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID"
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elif test -f ../../PERF-VERSION-FILE
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then
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TAG=$(cut -d' ' -f3 ../../PERF-VERSION-FILE | sed -e 's/\"//g')
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fi
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if test -z "$TAG"
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then
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TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
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fi
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VN="$TAG$CID"
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if test -n "$CID"
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then
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# format version string, strip trailing zero of sublevel:
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VN=$(echo "$VN" | sed -e 's/-/./g;s/\([0-9]*[.][0-9]*\)[.]0/\1/')
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fi
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VN=$(expr "$VN" : v*'\(.*\)')
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if test -r $GVF
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then
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VC=$(sed -e 's/^#define PERF_VERSION "\(.*\)"/\1/' <$GVF)
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else
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VC=unset
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fi
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test "$VN" = "$VC" || {
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echo >&2 " PERF_VERSION = $VN"
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echo "#define PERF_VERSION \"$VN\"" >$GVF
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}
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