lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 30 Sep 2020 19:15:04 +0200 From: Jiri Olsa <jolsa@...nel.org> To: Arnaldo Carvalho de Melo <acme@...nel.org> Cc: lkml <linux-kernel@...r.kernel.org>, Peter Zijlstra <a.p.zijlstra@...llo.nl>, Ingo Molnar <mingo@...nel.org>, Mark Rutland <mark.rutland@....com>, Namhyung Kim <namhyung@...nel.org>, Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Michael Petlan <mpetlan@...hat.com>, Ian Rogers <irogers@...gle.com>, Stephane Eranian <eranian@...gle.com> Subject: [PATCH 1/9] perf tools: Add build id shell test Adding test for build id cache that adds binary with sha1 and md5 build ids and verifies it's added properly. The test updates build id cache with perf record and perf buildid-cache -a. Signed-off-by: Jiri Olsa <jolsa@...nel.org> --- tools/perf/Makefile.perf | 14 +++++ tools/perf/tests/shell/buildid.sh | 90 +++++++++++++++++++++++++++++++ 2 files changed, 104 insertions(+) create mode 100755 tools/perf/tests/shell/buildid.sh diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 920d8afb9238..b2aeefa64e92 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -126,6 +126,8 @@ include ../scripts/utilities.mak # # Define NO_LIBDEBUGINFOD if you do not want support debuginfod # +# Define NO_BUILDID_EX if you do not want buildid-ex-* binaries +# # As per kernel Makefile, avoid funny character set dependencies unexport LC_ALL @@ -349,6 +351,11 @@ ifndef NO_PERF_READ_VDSOX32 PROGRAMS += $(OUTPUT)perf-read-vdsox32 endif +ifndef NO_BUILDID_EX +PROGRAMS += $(OUTPUT)buildid-ex-sha1 +PROGRAMS += $(OUTPUT)buildid-ex-md5 +endif + LIBJVMTI = libperf-jvmti.so ifndef NO_JVMTI @@ -756,6 +763,13 @@ $(OUTPUT)perf-read-vdsox32: perf-read-vdso.c util/find-map.c $(QUIET_CC)$(CC) -mx32 $(filter -static,$(LDFLAGS)) -Wall -Werror -o $@ perf-read-vdso.c endif +ifndef NO_BUILDID_EX +$(OUTPUT)buildid-ex-sha1: + $(QUIET_LINK)echo 'int main(void) { return 0; }' | $(CC) -Wl,--build-id=sha1 -o $@ -x c - +$(OUTPUT)buildid-ex-md5: + $(QUIET_LINK)echo 'int main(void) { return 0; }' | $(CC) -Wl,--build-id=md5 -o $@ -x c - +endif + ifndef NO_JVMTI LIBJVMTI_IN := $(OUTPUT)jvmti/jvmti-in.o diff --git a/tools/perf/tests/shell/buildid.sh b/tools/perf/tests/shell/buildid.sh new file mode 100755 index 000000000000..57fcd28bc4bd --- /dev/null +++ b/tools/perf/tests/shell/buildid.sh @@ -0,0 +1,90 @@ +#!/bin/sh +# build id cache operations +# SPDX-License-Identifier: GPL-2.0 + +# skip if there are no test binaries +if [ ! -x buildid-ex-sha1 -a ! -x buildid-ex-md5 ]; then + echo "failed: no test binaries" + exit 2 +fi + +# skip if there's no readelf +if [ ! -x `which readelf` ]; then + echo "failed: no readelf, install binutils" + exit 2 +fi + +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 + + 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 buildid-ex-sha1 +test_add buildid-ex-md5 + +# add binaries via perf record post processing +test_record buildid-ex-sha1 +test_record buildid-ex-md5 + +exit ${err} -- 2.26.2
Powered by blists - more mailing lists