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|
#!/bin/bash
#
# SPDX-FileCopyrightText: 2023 Kienan Stewart <kstewart@efficios.com>
#
# SPDX-License-Identifier: LGPL-2.1-only
#
TEST_DESC="Verifies the sessiond and traced applications with different combinations of LTTNG_UST_APP_PATH and LTTNG_UST_CTL_PATH settings."
CURDIR="$(dirname "${0}")"
TESTDIR="${CURDIR}/../../../"
NUM_TESTS=98
# shellcheck source=../../../utils/utils.sh
source "${TESTDIR}/utils/utils.sh"
TESTAPP="${TESTDIR}/utils/testapp/gen-ust-events/gen-ust-events"
EVENT_NAMES="tp:tptest"
SESSION_NAME="ust-app-ctl-path"
CHANNEL_NAME="ust-app-ctl-path"
function test_sessiond_started_before_app()
{
CTL_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.ctl.XXXXXX")"
TRACE_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.trace.XXXXXX")"
env_vars=(
LTTNG_UST_CTL_PATH="${CTL_PATH}"
)
# shellcheck disable=SC2119
LTTNG_SESSIOND_ENV_VARS="${env_vars[*]}" start_lttng_sessiond
create_lttng_session_ok "${SESSION_NAME}" "${TRACE_PATH}"
enable_ust_lttng_channel_ok "${SESSION_NAME}" "${CHANNEL_NAME}"
enable_ust_lttng_event_ok "${SESSION_NAME}" "--all" "${CHANNEL_NAME}"
start_lttng_tracing_ok "${SESSION_NAME}"
LTTNG_UST_APP_PATH="${CTL_PATH}" "${TESTAPP}" -i 100 -w 0
stop_lttng_tracing_ok "${SESSION_NAME}"
destroy_lttng_session_ok "${SESSION_NAME}" --no-wait
# shellcheck disable=SC2119
stop_lttng_sessiond
validate_trace_count "${EVENT_NAMES}" "${TRACE_PATH}" 100
rm -rf "${TRACE_PATH}" "${CTL_PATH}"
}
function test_sessiond_started_after_app()
{
CTL_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.ctl.XXXXXX")"
TRACE_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.trace.XXXXXX")"
SYNC_FILE=$(mktemp -d)
env_vars=(
LTTNG_UST_CTL_PATH="${CTL_PATH}"
)
LTTNG_UST_APP_PATH="${CTL_PATH}" "${TESTAPP}" -b "${SYNC_FILE}/a" &
APP_PID="${!}"
# shellcheck disable=SC2119
LTTNG_SESSIOND_ENV_VARS="${env_vars[*]}" start_lttng_sessiond
create_lttng_session_ok "${SESSION_NAME}" "${TRACE_PATH}"
enable_ust_lttng_channel_ok "${SESSION_NAME}" "${CHANNEL_NAME}"
enable_ust_lttng_event_ok "${SESSION_NAME}" "--all" "${CHANNEL_NAME}"
start_lttng_tracing_ok "${SESSION_NAME}"
touch "${SYNC_FILE}/a"
wait "${APP_PID}"
stop_lttng_tracing_ok "${SESSION_NAME}"
destroy_lttng_session_ok "${SESSION_NAME}" --no-wait
# shellcheck disable=SC2119
stop_lttng_sessiond
validate_trace "${EVENT_NAMES}" "${TRACE_PATH}"
rm -rf "${TRACE_PATH}" "${CTL_PATH}" "${SYNC_FILE}"
}
function test_multi_sessiond()
{
N_SESSIOND=3
CTL_PATH_BASE="$(mktemp -d -t "tmp.${FUNCNAME[0]}.ctl.XXXXXX")"
TRACE_PATH_BASE="$(mktemp -d -t "tmp.${FUNCNAME[0]}.trace.XXXXXX")"
LTTNG_HOME_BASE="$(mktemp -d -t "tmp.${FUNCNAME[0]}.lttng-home.XXXXXX")"
LTTNG_HOME_ORIG="${LTTNG_HOME}"
for i in $(seq 1 "${N_SESSIOND}") ; do
CTL_PATH="${CTL_PATH_BASE}/$i"
TRACE_PATH="${TRACE_PATH_BASE}/$i"
LTTNG_HOME="${LTTNG_HOME_BASE}/$i"
mkdir -p "${CTL_PATH}" "${TRACE_PATH}" "${LTTNG_HOME}"
env_vars=(
LTTNG_HOME="${LTTNG_HOME}"
LTTNG_UST_CTL_PATH="${CTL_PATH}"
TEST_IGNORE_EXISTING_SESSIOND=1
)
if [ "${UID}" == "0" ] ; then
env_vars+=(LTTNG_RUNDIR="${LTTNG_HOME_BASE}/$i")
fi
# shellcheck disable=SC2119
LTTNG_SESSIOND_ENV_VARS="${env_vars[*]}" start_lttng_sessiond
export "${env_vars[@]}"
create_lttng_session_ok "${SESSION_NAME}" "${TRACE_PATH}"
enable_ust_lttng_channel_ok "${SESSION_NAME}" "${CHANNEL_NAME}"
enable_ust_lttng_event_ok "${SESSION_NAME}" "--all" "${CHANNEL_NAME}"
start_lttng_tracing_ok "${SESSION_NAME}"
unset LTTNG_HOME
unset LTTNG_RUNDIR
unset LTTNG_UST_CTL_PATH
done
for i in $(seq 1 "${N_SESSIOND}") ; do
LTTNG_UST_APP_PATH="${CTL_PATH_BASE}/$i" "${TESTAPP}" -i 100 -w 0
done
for i in $(seq 1 "${N_SESSIOND}") ; do
env_vars=(
LTTNG_HOME="${LTTNG_HOME_BASE}/$i"
)
if [ "${UID}" == "0" ] ; then
env_vars+=(LTTNG_RUNDIR="${LTTNG_HOME_BASE}/$i")
fi
export "${env_vars[@]}"
stop_lttng_tracing_ok "${SESSION_NAME}"
destroy_lttng_session_ok "${SESSION_NAME}" --no-wait
unset LTTNG_HOME LTTNG_RUNDIR
validate_trace_count "${EVENT_NAMES}" "${TRACE_PATH_BASE}/$i" 100
done
# shellcheck disable=SC2119
stop_lttng_sessiond
# Cleanup
rm -rf "${TRACE_PATH_BASE}" "${CTL_PATH_BASE}" "${LTTNG_HOME_BASE}"
unset TEST_IGNORE_EXISTING_SESSIOND LTTNG_UST_CTL_PATH
if [ "${LTTNG_HOME_ORIG}" != "" ] ; then
export LTTNG_HOME="${LTTNG_HOME_ORIG}"
fi
}
function test_multi_sessiond_default()
{
diag "Verifies that the lttng_session_daemon_alive()/set_session_daemon_path() in liblttng is coherent with LTTNG_UST_CTL_PATH"
LTTNG_HOME_B="$(mktemp -d -t "tmp.${FUNCNAME[0]}.lttng-home.XXXXXX")"
TRACE_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.trace.XXXXXX")"
LTTNG_HOME_ORIG="${LTTNG_HOME}"
# shellcheck disable=SC2119
start_lttng_sessiond
LTTNG_UST_APP_PATH="${LTTNG_HOME_B}/.lttng"
env_vars_b=(
LTTNG_HOME="${LTTNG_HOME_B}"
TEST_IGNORE_EXISTING_SESSIOND=1
)
if [ "${UID}" == "0" ] ; then
env_vars_b+=(LTTNG_RUNDIR="${LTTNG_HOME_B}")
LTTNG_UST_APP_PATH="${LTTNG_HOME_B}"
fi
export "${env_vars_b[@]}"
# shellcheck disable=SC2119
LTTNG_SESSIOND_ENV_VARS="${env_vars_b[*]}" start_lttng_sessiond
create_lttng_session_ok "${SESSION_NAME}" "${TRACE_PATH}"
enable_ust_lttng_channel_ok "${SESSION_NAME}" "${CHANNEL_NAME}"
enable_ust_lttng_event_ok "${SESSION_NAME}" "--all" "${CHANNEL_NAME}"
start_lttng_tracing_ok "${SESSION_NAME}"
LTTNG_UST_APP_PATH="${LTTNG_UST_APP_PATH}" "${TESTAPP}" -i 100 -w 0
stop_lttng_tracing_ok "${SESSION_NAME}"
destroy_lttng_session_ok "${SESSION_NAME}" --no-wait
unset LTTNG_HOME LTTNG_RUNDIR
validate_trace_count "${EVENT_NAMES}" "${TRACE_PATH}" 100
# shellcheck disable=SC2119
stop_lttng_sessiond
unset LTTNG_HOME LTTNG_RUNDIR TEST_IGNORE_EXISTING_SESSIOND
if [ "${LTTNG_HOME_ORIG}" != "" ] ; then
export LTTNG_HOME="${LTTNG_HOME_ORIG}"
fi
rm -rf "${LTTNG_HOME_B}" "${TRACE_PATH}"
}
function test_trace_another_sessiond()
{
CTL_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.ctl.XXXXXX")"
TRACE_PATH_A="$(mktemp -d -t "tmp.${FUNCNAME[0]}.trace_a.XXXXXX")"
TRACE_PATH_B="$(mktemp -d -t "tmp.${FUNCNAME[0]}.trace_b.XXXXXX")"
LTTNG_HOME_A="$(mktemp -d -t "tmp.${FUNCNAME[0]}.lttng-home.XXXXXX")"
LTTNG_HOME_ORIG="${LTTNG_HOME}"
# This sessiond will trace a new one that will be started
env_vars_a=(
LTTNG_UST_CTL_PATH="${CTL_PATH}"
LTTNG_HOME="${LTTNG_HOME_A}"
TEST_IGNORE_EXISTING_SESSIOND=1
)
if [ "${UID}" == "0" ] ; then
env_vars_a+=(LTTNG_RUNDIR="${LTTNG_HOME_A}")
fi
export "${env_vars_a[@]}"
# shellcheck disable=SC2119
LTTNG_SESSIOND_ENV_VARS="${env_vars_a[*]}" start_lttng_sessiond
create_lttng_session_ok "${SESSION_NAME}" "${TRACE_PATH_A}"
enable_ust_lttng_channel_ok "${SESSION_NAME}" "${CHANNEL_NAME}"
enable_ust_lttng_event_ok "${SESSION_NAME}" "--all" "${CHANNEL_NAME}"
start_lttng_tracing_ok "${SESSION_NAME}"
unset LTTNG_HOME LTTNG_RUNDIR LTTNG_UST_CTL_PATH
if [ "${LTTNG_HOME_ORIG}" != "" ] ; then
export LTTNG_HOME="${LTTNG_HOME_ORIG}"
fi
# This sessiond will be traced
env_vars_b=(
LTTNG_UST_APP_PATH="${CTL_PATH}"
TEST_IGNORE_EXISTING_SESSIOND=1
LD_PRELOAD="liblttng-ust-fd.so:liblttng-ust-fork.so"
)
# shellcheck disable=SC2119
LTTNG_SESSIOND_ENV_VARS="${env_vars_b[*]}" start_lttng_sessiond
create_lttng_session_ok "${SESSION_NAME}" "${TRACE_PATH_B}"
enable_ust_lttng_channel_ok "${SESSION_NAME}" "${CHANNEL_NAME}"
enable_ust_lttng_event_ok "${SESSION_NAME}" "--all" "${CHANNEL_NAME}"
start_lttng_tracing_ok "${SESSION_NAME}"
"${TESTAPP}" -i 100 -w 0
stop_lttng_tracing_ok "${SESSION_NAME}"
destroy_lttng_session_ok "${SESSION_NAME}" --no-wait
validate_trace_count "${EVENT_NAMES}" "${TRACE_PATH_B}" 100
unset LTTNG_HOME LTTNG_RUNDIR LTTNG_UST_CTL_PATH TEST_IGNORE_EXISTING_SESSIOND
# Confirm that we get traced data from the subordinate sessiond
export "${env_vars_a[@]}"
stop_lttng_tracing_ok "${SESSION_NAME}"
destroy_lttng_session_ok "${SESSION_NAME}" --no-wait
EVENT_COUNT="$("${BABELTRACE_BIN}" "${TRACE_PATH_A}" | wc -l)"
isnt "${EVENT_COUNT}" "0" "More than zero events were expected"
# shellcheck disable=SC2119
stop_lttng_sessiond
# Cleanup
rm -rf "${TRACE_PATH_A}" "{$TRACE_PATH_B}" "${LTTNG_HOME_A}" "${CTL_PATH}"
unset LTTNG_HOME LTTNG_RUNDIR LTTNG_UST_CTL_PATH TEST_IGNORE_EXISTING_SESSIOND
if [ "${LTTNG_HOME_ORIG}" != "" ] ; then
export LTTNG_HOME="${LTTNG_HOME_ORIG}"
fi
}
function test_trace_self_default_paths()
{
TRACE_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.trace.XXXXXX")"
env_vars=(
LD_PRELOAD="liblttng-ust-fd.so:liblttng-ust-fork.so"
# Don't block during registration
LTTNG_UST_REGISTER_TIMEOUT=0
)
# shellcheck disable=SC2119
LTTNG_SESSIOND_ENV_VARS="${env_vars[*]}" start_lttng_sessiond
create_lttng_session_ok "${SESSION_NAME}" "${TRACE_PATH}"
enable_ust_lttng_channel_ok "${SESSION_NAME}" "${CHANNEL_NAME}"
add_context_ust_ok "${SESSION_NAME}" "${CHANNEL_NAME}" vpid -t procname
enable_ust_lttng_event_ok "${SESSION_NAME}" "--all" "${CHANNEL_NAME}" -x "${EVENT_NAMES}"
start_lttng_tracing_ok "${SESSION_NAME}"
stop_lttng_tracing_ok "${SESSION_NAME}"
destroy_lttng_session_ok "${SESSION_NAME}"
LTTNG_UST_APP_PATH="${CTL_PATH}" \
LTTNG_UST_WITHOUT_BADDR_STATEDUMP=1 \
LTTNG_UST_WITHOUT_PROCNAME_STATEDUMP=1 \
"${TESTAPP}" -i 100 -w 0 &
APP_PID="${!}"
EVENT_COUNT="$("${BABELTRACE_BIN}" "${TRACE_PATH}" | grep -v "vpid = ${APP_PID}" -c)"
isnt "${EVENT_COUNT}" "0" "More than zero events were expected"
# shellcheck disable=SC2119
stop_lttng_sessiond
# Cleanup
rm -rf "${TRACE_PATH}"
}
function test_trace_self_app_and_ctl_paths()
{
CTL_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.ctl.XXXXXX")"
TRACE_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.trace.XXXXXX")"
env_vars=(
LTTNG_UST_APP_PATH="${CTL_PATH}"
LTTNG_UST_CTL_PATH="${CTL_PATH}"
LD_PRELOAD="liblttng-ust-fd.so:liblttng-ust-fork.so"
# Don't block during registration
LTTNG_UST_REGISTER_TIMEOUT=0
)
# shellcheck disable=SC2119
LTTNG_SESSIOND_ENV_VARS="${env_vars[*]}" start_lttng_sessiond
create_lttng_session_ok "${SESSION_NAME}" "${TRACE_PATH}"
enable_ust_lttng_channel_ok "${SESSION_NAME}" "${CHANNEL_NAME}"
add_context_ust_ok "${SESSION_NAME}" "${CHANNEL_NAME}" vpid -t procname
enable_ust_lttng_event_ok "${SESSION_NAME}" "--all" "${CHANNEL_NAME}" -x "${EVENT_NAMES}"
start_lttng_tracing_ok "${SESSION_NAME}"
LTTNG_UST_APP_PATH="${CTL_PATH}" \
LTTNG_UST_WITHOUT_BADDR_STATEDUMP=1 \
LTTNG_UST_WITHOUT_PROCNAME_STATEDUMP=1 \
"${TESTAPP}" -i 100 -w 0 &
APP_PID="${!}"
stop_lttng_tracing_ok "${SESSION_NAME}"
destroy_lttng_session_ok "${SESSION_NAME}" --no-wait
EVENT_COUNT="$("${BABELTRACE_BIN}" "${TRACE_PATH}" | grep -v "vpid = ${APP_PID}" -c)"
isnt "${EVENT_COUNT}" "0" "More than zero events were expected"
# shellcheck disable=SC2119
stop_lttng_sessiond
# Cleanup
rm -rf "${TRACE_PATH}" "${CTL_PATH}"
}
function test_sessiond_bad_ctl_path() {
diag "Test that starting a sessiond with a LTTNG_UST_CTL_PATH that doesn't exist fails"
CTL_PATH="$(mktemp -d -t "tmp.${FUNCNAME[0]}.ctl.XXXXXX")"
rm -rf "${CTL_PATH}"
env_vars=(
LTTNG_UST_APP_PATH="${CTL_PATH}"
LTTNG_UST_CTL_PATH="${CTL_PATH}"
)
# shellcheck disable=SC2119
LTTNG_SESSIOND_ENV_VARS="${env_vars[*]}" start_lttng_sessiond_fail
LTTNG_UST_APP_PATH="${CTL_PATH}" \
LTTNG_UST_WITHOUT_BADDR_STATEDUMP=1 \
LTTNG_UST_WITHOUT_PROCNAME_STATEDUMP=1 \
"${TESTAPP}" -i 100 -w 0 &
APP_PID="${!}"
wait "${APP_PID}"
ok "${?}" "Test application exited successfully"
# shellcheck disable=SC2119
stop_lttng_sessiond_cleanup
}
plan_tests "${NUM_TESTS}"
print_test_banner "${TEST_DESC}"
bail_out_if_no_babeltrace
TESTS=(
test_sessiond_started_before_app
test_sessiond_started_after_app
test_multi_sessiond
test_multi_sessiond_default
test_trace_another_sessiond
test_trace_self_default_paths
test_trace_self_app_and_ctl_paths
test_sessiond_bad_ctl_path
)
for TEST in "${TESTS[@]}" ; do
"${TEST}"
lttng_pgrep "${SESSIOND_MATCH}"
done
|
