diff options
Diffstat (limited to 'tools/perf/tests/shell/buildid.sh')
| -rwxr-xr-x | tools/perf/tests/shell/buildid.sh | 326 |
1 files changed, 326 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/buildid.sh b/tools/perf/tests/shell/buildid.sh new file mode 100755 index 000000000000..102808cca9db --- /dev/null +++ b/tools/perf/tests/shell/buildid.sh @@ -0,0 +1,326 @@ +#!/bin/bash +# 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 + +# check what we need to test windows binaries +add_pe=1 +run_pe=1 +if ! perf version --build-options | grep -q 'libbfd: .* on '; then + echo "WARNING: perf not built with libbfd. PE binaries will not be tested." + add_pe=0 + run_pe=0 +fi +if ! which wine > /dev/null; then + echo "WARNING: wine not found. PE binaries will not be run." + run_pe=0 +fi + +# set up wine +if [ ${run_pe} -eq 1 ]; then + wineprefix=$(mktemp -d /tmp/perf.wineprefix.XXX) + export WINEPREFIX=${wineprefix} + # clear display variables to prevent wine from popping up dialogs + unset DISPLAY + unset WAYLAND_DISPLAY +fi + +build_id_dir= +ex_source=$(mktemp /tmp/perf_buildid_test.ex.XXX.c) +ex_md5=$(mktemp /tmp/perf_buildid_test.ex.MD5.XXX) +ex_sha1=$(mktemp /tmp/perf_buildid_test.ex.SHA1.XXX) +ex_pe=$(dirname $0)/../pe-file.exe +data=$(mktemp /tmp/perf_buildid_test.data.XXX) +log_out=$(mktemp /tmp/perf_buildid_test.log.out.XXX) +log_err=$(mktemp /tmp/perf_buildid_test.log.err.XXX) + +cleanup() { + rm -f ${ex_source} ${ex_md5} ${ex_sha1} ${data} ${log_out} ${log_err} + if [ ${run_pe} -eq 1 ]; then + rm -r ${wineprefix} + fi + if [ -d ${build_id_dir} ]; then + rm -rf ${build_id_dir} + fi + trap - EXIT TERM INT +} + +trap_cleanup() { + echo "Unexpected signal in ${FUNCNAME[1]}" + cleanup + exit 1 +} +trap trap_cleanup EXIT TERM INT + +# Test program based on the noploop workload. +cat <<EOF > ${ex_source} +#include <stdlib.h> +#include <signal.h> +#include <unistd.h> + +static volatile sig_atomic_t done; + +static void sighandler(int sig) +{ + (void)sig; + done = 1; +} + +int main(int argc, const char **argv) +{ + int sec = 1; + + if (argc > 1) + sec = atoi(argv[1]); + + signal(SIGINT, sighandler); + signal(SIGALRM, sighandler); + alarm(sec); + + while (!done) + continue; + + return 0; +} +EOF +cc -Wl,--build-id=sha1 ${ex_source} -o ${ex_sha1} -x c - +cc -Wl,--build-id=md5 ${ex_source} -o ${ex_md5} -x c - +echo "test binaries: ${ex_sha1} ${ex_md5} ${ex_pe}" + +get_build_id() +{ + case $1 in + *.exe) + # We don't have a tool that can pull a nicely formatted build-id out of + # a PE file, but we can extract the whole section with objcopy and + # format it ourselves. The .buildid section is a Debug Directory + # containing a CodeView entry: + # https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#debug-directory-image-only + # https://github.com/dotnet/runtime/blob/da94c022576a5c3bbc0e896f006565905eb137f9/docs/design/specs/PE-COFF.md + # The build-id starts at byte 33 and must be rearranged into a GUID. + id=`objcopy -O binary --only-section=.buildid $1 /dev/stdout | \ + cut -c 33-48 | hexdump -ve '/1 "%02x"' | \ + sed 's@^\(..\)\(..\)\(..\)\(..\)\(..\)\(..\)\(..\)\(..\)\(.*\)0a$@\4\3\2\1\6\5\8\7\9@'` + ;; + *) + id=`readelf -n ${1} 2>/dev/null | grep 'Build ID' | awk '{print $3}'` + ;; + esac + echo ${id} +} + +check() +{ + file=$1 + perf_data=$2 + + id=$(get_build_id $file) + echo "build id: ${id}" + + id_file=${id#??} + id_dir=${id%$id_file} + link=$build_id_dir/.build-id/$id_dir/$id_file + echo "link: ${link}" + + if [ ! -h $link ]; then + echo "failed: link ${link} does not exist" + exit 1 + fi + + cached_file=${build_id_dir}/.build-id/$id_dir/`readlink ${link}`/elf + echo "file: ${cached_file}" + + # Check for file permission of original file + # in case of pe-file.exe file + echo $1 | grep ".exe" + if [ $? -eq 0 ]; then + if [ -x $1 ] && [ ! -x $cached_file ]; then + echo "failed: file ${cached_file} executable does not exist" + exit 1 + fi + + if [ ! -x $cached_file ] && [ ! -e $cached_file ]; then + echo "failed: file ${cached_file} does not exist" + exit 1 + fi + elif [ ! -x $cached_file ]; then + echo "failed: file ${cached_file} does not exist" + exit 1 + fi + + diff ${cached_file} ${1} + if [ $? -ne 0 ]; then + echo "failed: ${cached_file} do not match" + exit 1 + fi + + ${perf} buildid-cache -l | grep -q ${id} + if [ $? -ne 0 ]; then + echo "failed: ${id} is not reported by \"perf buildid-cache -l\"" + exit 1 + fi + + if [ -n "${perf_data}" ]; then + ${perf} buildid-list -i ${perf_data} | grep -q ${id} + if [ $? -ne 0 ]; then + echo "failed: ${id} is not reported by \"perf buildid-list -i ${perf_data}\"" + exit 1 + fi + fi + + echo "OK for ${1}" +} + +test_add() +{ + build_id_dir=$(mktemp -d /tmp/perf_buildid_test.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 ${build_id_dir} +} + +test_remove() +{ + build_id_dir=$(mktemp -d /tmp/perf_buildid_test.debug.XXX) + perf="perf --buildid-dir ${build_id_dir}" + + ${perf} buildid-cache -v -a ${1} + if [ $? -ne 0 ]; then + echo "failed: add ${1} to build id cache" + exit 1 + fi + + id=$(get_build_id ${1}) + if ! ${perf} buildid-cache -l | grep -q ${id}; then + echo "failed: ${id} not in cache" + exit 1 + fi + + ${perf} buildid-cache -v -r ${1} + if [ $? -ne 0 ]; then + echo "failed: remove ${id} from build id cache" + exit 1 + fi + + if ${perf} buildid-cache -l | grep -q ${id}; then + echo "failed: ${id} still in cache after remove" + exit 1 + fi + + echo "remove: OK" + rm -rf ${build_id_dir} +} + +test_purge() +{ + build_id_dir=$(mktemp -d /tmp/perf_buildid_test.debug.XXX) + perf="perf --buildid-dir ${build_id_dir}" + + id1=$(get_build_id ${ex_sha1}) + ${perf} buildid-cache -v -a ${ex_sha1} + if ! ${perf} buildid-cache -l | grep -q ${id1}; then + echo "failed: ${id1} not in cache" + exit 1 + fi + + id2=$(get_build_id ${ex_md5}) + ${perf} buildid-cache -v -a ${ex_md5} + if ! ${perf} buildid-cache -l | grep -q ${id2}; then + echo "failed: ${id2} not in cache" + exit 1 + fi + + # Purge by path + ${perf} buildid-cache -v -p ${ex_sha1} + if [ $? -ne 0 ]; then + echo "failed: purge build id cache of ${ex_sha1}" + exit 1 + fi + + ${perf} buildid-cache -v -p ${ex_md5} + if [ $? -ne 0 ]; then + echo "failed: purge build id cache of ${ex_md5}" + exit 1 + fi + + # Verify both are gone + if ${perf} buildid-cache -l | grep -q ${id1}; then + echo "failed: ${id1} still in cache after purge" + exit 1 + fi + + if ${perf} buildid-cache -l | grep -q ${id2}; then + echo "failed: ${id2} still in cache after purge" + exit 1 + fi + + echo "purge: OK" + rm -rf ${build_id_dir} +} + +test_record() +{ + build_id_dir=$(mktemp -d /tmp/perf_buildid_test.debug.XXX) + perf="perf --buildid-dir ${build_id_dir}" + + echo "running: perf record $*" + ${perf} record --buildid-all -o ${data} "$@" 1>${log_out} 2>${log_err} + if [ $? -ne 0 ]; then + echo "failed: record $*" + echo "see log: ${log_err}" + exit 1 + fi + + args="$*" + check ${args##* } ${data} + + rm -f ${log_out} ${log_err} + rm -rf ${build_id_dir} + rm -rf ${data} +} + +# add binaries manual via perf buildid-cache -a +test_add ${ex_sha1} +test_add ${ex_md5} +if [ ${add_pe} -eq 1 ]; then + test_add ${ex_pe} +fi + +# add binaries via perf record post processing +test_record ${ex_sha1} +test_record ${ex_md5} +if [ ${run_pe} -eq 1 ]; then + test_record wine ${ex_pe} +fi + +# remove binaries manually via perf buildid-cache -r +test_remove ${ex_sha1} +test_remove ${ex_md5} +if [ ${add_pe} -eq 1 ]; then + test_remove ${ex_pe} +fi + +# purge binaries manually via perf buildid-cache -p +test_purge + +cleanup +exit 0 |