xref: /aosp_15_r20/external/elfutils/tests/run-debuginfod-dlopen.sh (revision 7304104da70ce23c86437a01be71edd1a2d7f37e)

#!/usr/bin/env bash
#
# Copyright (C) 2019-2021 Red Hat, Inc.
# This file is part of elfutils.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# elfutils is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

. $srcdir/debuginfod-subr.sh

# for test case debugging, uncomment:
set -x
unset VALGRIND_CMD

mkdir F
# This variable is essential and ensures no time-race for claiming ports occurs
# set base to a unique multiple of 100 not used in any other 'run-debuginfod-*' test
base=8500
get_ports

DB=${PWD}/.debuginfod_tmp.sqlite
tempfiles $DB
export DEBUGINFOD_CACHE_PATH=${PWD}/.client_cache

env LD_LIBRARY_PATH=$ldpath DEBUGINFOD_URLS= ${abs_builddir}/../debuginfod/debuginfod -F -R $VERBOSE -p $PORT1 -d $DB \
    -t0 -g0 -v F > vlog$PORT1 2>&1 &
PID1=$!
tempfiles vlog$PORT1
errfiles vlog$PORT1

# Server must become ready
wait_ready $PORT1 'ready' 1
export DEBUGINFOD_URLS=http://127.0.0.1:$PORT1/   # or without trailing /

# Check thread comm names
ps -q $PID1 -e -L -o '%p %c %a'
ps -q $PID1 -e -L -o '%p %c %a' | grep groom
ps -q $PID1 -e -L -o '%p %c %a' | grep scan
ps -q $PID1 -e -L -o '%p %c %a' | grep traverse

# Make sure the initial scan has finished.
# Before moving files under the scan dirs.
wait_ready $PORT1 'thread_work_total{role="traverse"}' 1

# We use -t0 and -g0 here to turn off time-based scanning & grooming.
# For testing purposes, we just sic SIGUSR1 / SIGUSR2 at the process.

########################################################################

# Compile a simple program, strip its debuginfo and save the build-id.
# Also move the debuginfo into another directory so that elfutils
# cannot find it without debuginfod.
echo "int main() { return 0; }" > ${PWD}/p+r%o\$g.c
tempfiles p+r%o\$g.c
# Create a subdirectory to confound source path names
mkdir foobar
gcc -Wl,--build-id -g -o p+r%o\$g ${PWD}/foobar///./../p+r%o\$g.c
testrun ${abs_top_builddir}/src/strip -g -f p+r%o\$g.debug ${PWD}/p+r%o\$g
BUILDID=`env LD_LIBRARY_PATH=$ldpath ${abs_builddir}/../src/readelf \
          -a p+r%o\\$g | grep 'Build ID' | cut -d ' ' -f 7`

mv p+r%o\$g F
mv p+r%o\$g.debug F

kill -USR1 $PID1
# Wait till both files are in the index.
wait_ready $PORT1 'thread_work_total{role="traverse"}' 2
wait_ready $PORT1 'thread_work_pending{role="scan"}' 0
wait_ready $PORT1 'thread_busy{role="scan"}' 0

########################################################################

# Test whether elfutils, via the debuginfod client library dlopen hooks,
# is able to fetch debuginfo from the local debuginfod.
testrun ${abs_builddir}/debuginfod_build_id_find -e F/p+r%o\$g 1

kill $PID1
wait $PID1
PID1=0

exit 0