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#!/bin/bash
#
# SPDX-FileCopyrightText: 2012 Christian Babeux <christian.babeux@efficios.com>
#
# SPDX-License-Identifier: GPL-2.0-only
#
TEST_DESC="Event exclusion"
CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../..
BT2_PLUGINS_DIR="${TESTDIR}/utils/bt2_plugins"
SESSION_NAME="test-exclusion"
TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-nevents"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
NR_ITER=100
NR_USEC_WAIT=1
NUM_TESTS=185
source $TESTDIR/utils/utils.sh
function enable_ust_lttng_all_event_exclusion()
{
sess_name="$1"
exclusion="$2"
_run_lttng_cmd "$(lttng_client_log_file)" "$(lttng_client_err_file)" \
enable-event --userspace "tp:*" --session "$sess_name" \
--exclude "$exclusion"
}
function run_apps
{
$TESTAPP_BIN --iter $NR_ITER --wait $NR_USEC_WAIT >/dev/null 2>&1
ok $? "Running test application"
}
# Testing for the absence of an event when testing exclusion is tricky. An
# event could be absent because our exclusion mechanism works but also because
# the event was not generate in the first place. This function test the ability
# of our test suite to generate events.
function dry_run
{
local trace_path=$(mktemp -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
# Create session
create_lttng_session_ok $SESSION_NAME $trace_path
_run_lttng_cmd "$(lttng_client_log_file)" "$(lttng_client_err_file)" \
enable-event --userspace "tp:*" --session "$SESSION_NAME"
ok $? "Enabling events without exclusion"
# Trace apps
start_lttng_tracing_ok $SESSION_NAME
run_apps
stop_lttng_tracing_ok $SESSION_NAME
nb_events=$("_run_babeltrace_cmd" $trace_path | wc -l)
if [ "$nb_events" -ne "0" ]; then
ok 0 "Events were found during the dry run without exclusion"
else
fail "No events were found during the dry run without exclusion"
fi
rm -rf $trace_path
# Destroy session
destroy_lttng_session_ok $SESSION_NAME
}
function test_exclusion
{
local exclusions="$1"
local event_name_expected_to_be_missing="$2"
local trace_path=$(mktemp -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
# Create session
create_lttng_session_ok $SESSION_NAME $trace_path
enable_ust_lttng_all_event_exclusion $SESSION_NAME "$exclusions"
ok $? "Enable lttng event with event \"$exclusions\" excluded"
# Trace apps
start_lttng_tracing_ok $SESSION_NAME
run_apps
stop_lttng_tracing_ok $SESSION_NAME
# Destroy session
destroy_lttng_session_ok $SESSION_NAME
stats=$("_run_babeltrace_cmd" --plugin-path "${BT2_PLUGINS_DIR}" "${trace_path}" -c filter.lttngtest.event_name -p "names=[\"${event_name_expected_to_be_missing}\"]" -c sink.lttngtest.field_stats | grep -v index)
if [ ! -z "$stats" ]; then
fail "Excluded event \"$event_name_expected_to_be_missing\" was found in trace!"
else
ok 0 "Validate trace exclusion output"
rm -rf $trace_path
fi
}
function test_exclusion_tracing_started
{
local exclusions="$1"
local event_name_expected_to_be_missing="$2"
local trace_path=$(mktemp -d -t "tmp.${FUNCNAME[0]}_trace_path.XXXXXX")
local file_wait_before_first=$(mktemp -u -t "tmp.${FUNCNAME[0]}_sync_before_first.XXXXXX")
local file_create_in_main=$(mktemp -u -t "tmp.${FUNCNAME[0]}_sync_create_in_main.XXXXXX")
# Create session
create_lttng_session_ok $SESSION_NAME $trace_path
# Enable a dummy event so that the session is active after we start the
# session.
enable_ust_lttng_event_ok $SESSION_NAME "non-existent-event"
# Start the tracing
start_lttng_tracing_ok $SESSION_NAME
# Launch the test app and make it create a sync file once it's in the
# main function.
$TESTAPP_BIN -i 1 -w 10000 \
--create-in-main ${file_create_in_main} \
--wait-before-first-event ${file_wait_before_first} 2>&1 &
tracee_pids+=("${!}")
while [ ! -f "${file_create_in_main}" ]; do
sleep 0.5
done
# Enable an event with an exclusion once the tracing is active in the
# UST app.
enable_ust_lttng_all_event_exclusion $SESSION_NAME "$exclusions"
ok $? "Enable lttng event with event \"$exclusions\" excluded"
# Create the sync file so that the test app starts generating events.
touch ${file_wait_before_first}
# Wait for the testapp to finish.
wait "${tracee_pids[@]}"
tracee_pids=()
stop_lttng_tracing_ok $SESSION_NAME
# Destroy session
destroy_lttng_session_ok $SESSION_NAME
stats=$("_run_babeltrace_cmd" --plugin-path "${BT2_PLUGINS_DIR}" "${trace_path}" -c filter.lttngtest.event_name -p "names=[\"${event_name_expected_to_be_missing}\"]" -c sink.lttngtest.field_stats | grep -v index)
if [ ! -z "$stats" ]; then
fail "Excluded event \"$event_name_expected_to_be_missing\" was found in trace!"
else
ok 0 "Validate trace exclusion output"
rm -rf $trace_path
fi
rm -f $file_wait_before_first
rm -f $file_create_in_main
}
function test_exclusion_fail
{
event_name="$1"
exclusions="$2"
create_lttng_session_ok $SESSION_NAME $trace_path
_run_lttng_cmd "$(lttng_client_log_file)" "$(lttng_client_err_file)" \
enable-event --userspace "$event_name" --session "$sess_name" \
--exclude "$exclusions"
res=$?
destroy_lttng_session_ok $SESSION_NAME
if [ $res -eq 0 ]; then
fail "Enable LTTng event \"$event_name\" with exclusion \"$exclusions\" passes"
return 1
else
pass "Enable LTTng event \"$event_name\" with exclusion \"$exclusions\" fails"
return 0
fi
}
plan_tests $NUM_TESTS
print_test_banner "$TEST_DESC"
bail_out_if_no_babeltrace
start_lttng_sessiond
tracee_pids=()
diag "Enable event without exclusion"
dry_run
diag "Enable event with exclusion"
test_exclusion 'tp:tptest2' 'tp:tptest2'
test_exclusion 'tp:tptest3' 'tp:tptest3'
test_exclusion 'tp:tptest*' 'tp:tptest1'
test_exclusion 'tp:tptest*' 'tp:tptest2'
test_exclusion 'tp:tptest*' 'tp:tptest3'
test_exclusion 'tp:tptest*' 'tp:tptest4'
test_exclusion 'tp:tptest*' 'tp:tptest5'
test_exclusion 'tp*tptest*' 'tp:tptest1'
test_exclusion 'tp*tptest*' 'tp:tptest2'
test_exclusion 'tp*tptest*' 'tp:tptest3'
test_exclusion 'tp*tptest*' 'tp:tptest4'
test_exclusion 'tp*tptest*' 'tp:tptest5'
test_exclusion '*test2' 'tp:tptest2'
test_exclusion '*test5' 'tp:tptest5'
test_exclusion '*p*test*' 'tp:tptest1'
test_exclusion '*p*test*' 'tp:tptest2'
test_exclusion '*p*test*' 'tp:tptest3'
test_exclusion '*p***test*' 'tp:tptest4'
test_exclusion '*p*test*' 'tp:tptest5'
test_exclusion '*3' 'tp:tptest3'
test_exclusion 'tp*test3,*2' 'tp:tptest2'
test_exclusion '**tp*test3,*2' 'tp:tptest3'
test_exclusion_tracing_started 'tp:tptest1' 'tp:tptest1'
diag "Cannot use exclusions with non-globbing event name"
test_exclusion_fail "allo" "lol"
test_exclusion_fail "allo" "meow,lol"
test_exclusion_fail "allo" "z*em"
diag "Exclusion name excludes all possible event names"
test_exclusion_fail "allo*" "all*"
test_exclusion_fail "allo*" "ze,all*,yes"
stop_lttng_sessiond
|
