linux/tools/perf/tests/shell/buildid.sh
Nicholas Fraser 206236d328 perf buildid-cache: Add test for 16-byte build-id
tests/shell/buildid.sh added an ELF executable with an MD5 build-id to
the perf debug cache but did not check whether the object was printed
by a subsequent call to "perf buildid-cache -l". It was being omitted
from the list.

A previous commit fixed the bug that left it out of the list. This adds
a test for it.

Signed-off-by: Nicholas Fraser <nfraser@codeweavers.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Huw Davies <huw@codeweavers.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Remi Bernon <rbernon@codeweavers.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tommi Rantala <tommi.t.rantala@nokia.com>
Cc: Ulrich Czekalla <uczekalla@codeweavers.com>
Link: https://lore.kernel.org/r/c08be235-7434-5208-5f21-e8c9a3265464@codeweavers.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-02-18 16:40:30 -03:00

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#!/bin/sh
# build id cache operations
# SPDX-License-Identifier: GPL-2.0
# skip if there's no readelf
if ! [ -x "$(command -v readelf)" ]; then
echo "failed: no readelf, install binutils"
exit 2
fi
# skip if there's no compiler
if ! [ -x "$(command -v cc)" ]; then
echo "failed: no compiler, install gcc"
exit 2
fi
ex_md5=$(mktemp /tmp/perf.ex.MD5.XXX)
ex_sha1=$(mktemp /tmp/perf.ex.SHA1.XXX)
echo 'int main(void) { return 0; }' | cc -Wl,--build-id=sha1 -o ${ex_sha1} -x c -
echo 'int main(void) { return 0; }' | cc -Wl,--build-id=md5 -o ${ex_md5} -x c -
echo "test binaries: ${ex_sha1} ${ex_md5}"
check()
{
id=`readelf -n ${1} 2>/dev/null | grep 'Build ID' | awk '{print $3}'`
echo "build id: ${id}"
link=${build_id_dir}/.build-id/${id:0:2}/${id:2}
echo "link: ${link}"
if [ ! -h $link ]; then
echo "failed: link ${link} does not exist"
exit 1
fi
file=${build_id_dir}/.build-id/${id:0:2}/`readlink ${link}`/elf
echo "file: ${file}"
if [ ! -x $file ]; then
echo "failed: file ${file} does not exist"
exit 1
fi
diff ${file} ${1}
if [ $? -ne 0 ]; then
echo "failed: ${file} do not match"
exit 1
fi
${perf} buildid-cache -l | grep $id
if [ $? -ne 0 ]; then
echo "failed: ${id} is not reported by \"perf buildid-cache -l\""
exit 1
fi
echo "OK for ${1}"
}
test_add()
{
build_id_dir=$(mktemp -d /tmp/perf.debug.XXX)
perf="perf --buildid-dir ${build_id_dir}"
${perf} buildid-cache -v -a ${1}
if [ $? -ne 0 ]; then
echo "failed: add ${1} to build id cache"
exit 1
fi
check ${1}
rm -rf ${build_id_dir}
}
test_record()
{
data=$(mktemp /tmp/perf.data.XXX)
build_id_dir=$(mktemp -d /tmp/perf.debug.XXX)
perf="perf --buildid-dir ${build_id_dir}"
${perf} record --buildid-all -o ${data} ${1}
if [ $? -ne 0 ]; then
echo "failed: record ${1}"
exit 1
fi
check ${1}
rm -rf ${build_id_dir}
rm -rf ${data}
}
# add binaries manual via perf buildid-cache -a
test_add ${ex_sha1}
test_add ${ex_md5}
# add binaries via perf record post processing
test_record ${ex_sha1}
test_record ${ex_md5}
# cleanup
rm ${ex_sha1} ${ex_md5}
exit ${err}