| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (C) 2012 Christian Babeux <christian.babeux@efficios.com> |
| 4 | # |
| 5 | # SPDX-License-Identifier: GPL-2.0-only |
| 6 | # |
| 7 | |
| 8 | TEST_DESC="Event exclusion" |
| 9 | |
| 10 | CURDIR=$(dirname $0)/ |
| 11 | TESTDIR=$CURDIR/../../.. |
| 12 | STATS_BIN="$TESTDIR/utils/babelstats.pl" |
| 13 | SESSION_NAME="test-exclusion" |
| 14 | TESTAPP_PATH="$TESTDIR/utils/testapp" |
| 15 | TESTAPP_NAME="gen-ust-nevents" |
| 16 | TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME" |
| 17 | NR_ITER=100 |
| 18 | NR_USEC_WAIT=1 |
| 19 | NUM_TESTS=185 |
| 20 | |
| 21 | source $TESTDIR/utils/utils.sh |
| 22 | |
| 23 | function enable_ust_lttng_all_event_exclusion() |
| 24 | { |
| 25 | sess_name="$1" |
| 26 | exclusion="$2" |
| 27 | |
| 28 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event -u "tp:*" -s $sess_name -x "$exclusion" > /dev/null |
| 29 | } |
| 30 | |
| 31 | function run_apps |
| 32 | { |
| 33 | $TESTAPP_BIN --iter $NR_ITER --wait $NR_USEC_WAIT >/dev/null 2>&1 |
| 34 | ok $? "Running test application" |
| 35 | } |
| 36 | |
| 37 | # Testing for the absence of an event when testing exclusion is tricky. An |
| 38 | # event could be absent because our exclusion mechanism works but also because |
| 39 | # the event was not generate in the first place. This function test the ability |
| 40 | # of our test suite to generate events. |
| 41 | function dry_run |
| 42 | { |
| 43 | trace_path=$(mktemp -d) |
| 44 | |
| 45 | # Create session |
| 46 | create_lttng_session_ok $SESSION_NAME $trace_path |
| 47 | |
| 48 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event -u "tp:*" -s $SESSION_NAME > /dev/null |
| 49 | ok $? "Enabling events without exclusion" |
| 50 | |
| 51 | # Trace apps |
| 52 | start_lttng_tracing_ok $SESSION_NAME |
| 53 | run_apps |
| 54 | stop_lttng_tracing_ok $SESSION_NAME |
| 55 | |
| 56 | nb_events=$(babeltrace $trace_path | wc -l) |
| 57 | if [ "$nb_events" -ne "0" ]; then |
| 58 | ok 0 "Events were found during the dry run without exclusion" |
| 59 | else |
| 60 | fail "No events were found during the dry run without exclusion" |
| 61 | fi |
| 62 | |
| 63 | rm -rf $trace_path |
| 64 | |
| 65 | # Destroy session |
| 66 | destroy_lttng_session_ok $SESSION_NAME |
| 67 | } |
| 68 | |
| 69 | function test_exclusion |
| 70 | { |
| 71 | exclusions="$1" |
| 72 | event_name_expected_to_be_missing="$2" |
| 73 | trace_path=$(mktemp -d) |
| 74 | |
| 75 | # Create session |
| 76 | create_lttng_session_ok $SESSION_NAME $trace_path |
| 77 | |
| 78 | enable_ust_lttng_all_event_exclusion $SESSION_NAME "$exclusions" |
| 79 | ok $? "Enable lttng event with event \"$exclusions\" excluded" |
| 80 | |
| 81 | # Trace apps |
| 82 | start_lttng_tracing_ok $SESSION_NAME |
| 83 | run_apps |
| 84 | stop_lttng_tracing_ok $SESSION_NAME |
| 85 | |
| 86 | # Destroy session |
| 87 | destroy_lttng_session_ok $SESSION_NAME |
| 88 | |
| 89 | stats=`babeltrace $trace_path | $STATS_BIN --tracepoint "$event_name_expected_to_be_missing" | grep -v index 2> /dev/null` |
| 90 | if [ ! -z "$stats" ]; then |
| 91 | fail "Excluded event \"$event_name_expected_to_be_missing\" was found in trace!" |
| 92 | else |
| 93 | ok 0 "Validate trace exclusion output" |
| 94 | rm -rf $trace_path |
| 95 | fi |
| 96 | } |
| 97 | |
| 98 | function test_exclusion_tracing_started |
| 99 | { |
| 100 | local exclusions="$1" |
| 101 | local event_name_expected_to_be_missing="$2" |
| 102 | local trace_path=$(mktemp -d) |
| 103 | local file_wait_before_first=$(mktemp -u) |
| 104 | local file_create_in_main=$(mktemp -u) |
| 105 | |
| 106 | # Create session |
| 107 | create_lttng_session_ok $SESSION_NAME $trace_path |
| 108 | |
| 109 | # Enable a dummy event so that the session is active after we start the |
| 110 | # session. |
| 111 | enable_ust_lttng_event_ok $SESSION_NAME "non-existent-event" |
| 112 | |
| 113 | # Start the tracing |
| 114 | start_lttng_tracing_ok $SESSION_NAME |
| 115 | |
| 116 | # Launch the test app and make it create a sync file once it's in the |
| 117 | # main function. |
| 118 | $TESTAPP_BIN -i 1 -w 10000 \ |
| 119 | --create-in-main ${file_create_in_main} \ |
| 120 | --wait-before-first-event ${file_wait_before_first} 2>&1 & |
| 121 | |
| 122 | while [ ! -f "${file_create_in_main}" ]; do |
| 123 | sleep 0.5 |
| 124 | done |
| 125 | |
| 126 | # Enable an event with an exclusion once the tracing is active in the |
| 127 | # UST app. |
| 128 | enable_ust_lttng_all_event_exclusion $SESSION_NAME "$exclusions" |
| 129 | ok $? "Enable lttng event with event \"$exclusions\" excluded" |
| 130 | |
| 131 | # Create the sync file so that the test app starts generating events. |
| 132 | touch ${file_wait_before_first} |
| 133 | |
| 134 | # Wait for the testapp to finish. |
| 135 | wait |
| 136 | |
| 137 | stop_lttng_tracing_ok $SESSION_NAME |
| 138 | |
| 139 | # Destroy session |
| 140 | destroy_lttng_session_ok $SESSION_NAME |
| 141 | |
| 142 | stats=$(babeltrace $trace_path | $STATS_BIN --tracepoint "$event_name_expected_to_be_missing" | grep -v index 2> /dev/null) |
| 143 | if [ ! -z "$stats" ]; then |
| 144 | fail "Excluded event \"$event_name_expected_to_be_missing\" was found in trace!" |
| 145 | else |
| 146 | ok 0 "Validate trace exclusion output" |
| 147 | rm -rf $trace_path |
| 148 | fi |
| 149 | } |
| 150 | |
| 151 | function test_exclusion_fail |
| 152 | { |
| 153 | event_name="$1" |
| 154 | exclusions="$2" |
| 155 | |
| 156 | create_lttng_session_ok $SESSION_NAME $trace_path |
| 157 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event -u "$event_name" -s $sess_name -x "$exclusions" >/dev/null 2>&1 |
| 158 | res=$? |
| 159 | destroy_lttng_session_ok $SESSION_NAME |
| 160 | |
| 161 | if [ $res -eq 0 ]; then |
| 162 | fail "Enable LTTng event \"$event_name\" with exclusion \"$exclusions\" passes" |
| 163 | return 1 |
| 164 | else |
| 165 | pass "Enable LTTng event \"$event_name\" with exclusion \"$exclusions\" fails" |
| 166 | return 0 |
| 167 | fi |
| 168 | } |
| 169 | |
| 170 | plan_tests $NUM_TESTS |
| 171 | |
| 172 | print_test_banner "$TEST_DESC" |
| 173 | |
| 174 | start_lttng_sessiond |
| 175 | |
| 176 | diag "Enable event without exclusion" |
| 177 | dry_run |
| 178 | |
| 179 | diag "Enable event with exclusion" |
| 180 | test_exclusion 'tp:tptest2' 'tp:tptest2' |
| 181 | test_exclusion 'tp:tptest3' 'tp:tptest3' |
| 182 | test_exclusion 'tp:tptest*' 'tp:tptest1' |
| 183 | test_exclusion 'tp:tptest*' 'tp:tptest2' |
| 184 | test_exclusion 'tp:tptest*' 'tp:tptest3' |
| 185 | test_exclusion 'tp:tptest*' 'tp:tptest4' |
| 186 | test_exclusion 'tp:tptest*' 'tp:tptest5' |
| 187 | test_exclusion 'tp*tptest*' 'tp:tptest1' |
| 188 | test_exclusion 'tp*tptest*' 'tp:tptest2' |
| 189 | test_exclusion 'tp*tptest*' 'tp:tptest3' |
| 190 | test_exclusion 'tp*tptest*' 'tp:tptest4' |
| 191 | test_exclusion 'tp*tptest*' 'tp:tptest5' |
| 192 | test_exclusion '*test2' 'tp:tptest2' |
| 193 | test_exclusion '*test5' 'tp:tptest5' |
| 194 | test_exclusion '*p*test*' 'tp:tptest1' |
| 195 | test_exclusion '*p*test*' 'tp:tptest2' |
| 196 | test_exclusion '*p*test*' 'tp:tptest3' |
| 197 | test_exclusion '*p***test*' 'tp:tptest4' |
| 198 | test_exclusion '*p*test*' 'tp:tptest5' |
| 199 | test_exclusion '*3' 'tp:tptest3' |
| 200 | test_exclusion 'tp*test3,*2' 'tp:tptest2' |
| 201 | test_exclusion '**tp*test3,*2' 'tp:tptest3' |
| 202 | |
| 203 | test_exclusion_tracing_started 'tp:tptest1' 'tp:tptest1' |
| 204 | |
| 205 | diag "Cannot use exclusions with non-globbing event name" |
| 206 | test_exclusion_fail "allo" "lol" |
| 207 | test_exclusion_fail "allo" "meow,lol" |
| 208 | test_exclusion_fail "allo" "z*em" |
| 209 | |
| 210 | diag "Exclusion name excludes all possible event names" |
| 211 | test_exclusion_fail "allo*" "all*" |
| 212 | test_exclusion_fail "allo*" "ze,all*,yes" |
| 213 | |
| 214 | stop_lttng_sessiond |