| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (C) - 2019 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com> |
| 4 | # |
| 5 | # This library is free software; you can redistribute it and/or modify it under |
| 6 | # the terms of the GNU Lesser General Public License as published by the Free |
| 7 | # Software Foundation; version 2.1 of the License. |
| 8 | # |
| 9 | # This library is distributed in the hope that it will be useful, but WITHOUT |
| 10 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| 11 | # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
| 12 | # details. |
| 13 | # |
| 14 | # You should have received a copy of the GNU Lesser General Public License |
| 15 | # along with this library; if not, write to the Free Software Foundation, Inc., |
| 16 | # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | |
| 18 | TEST_DESC="Clear - Kernel tracing" |
| 19 | |
| 20 | CURDIR=$(dirname $0)/ |
| 21 | TESTDIR=$CURDIR/../../.. |
| 22 | EVENT_NAME="lttng_test_filter_event" |
| 23 | |
| 24 | TRACE_PATH=$(mktemp -d) |
| 25 | |
| 26 | NUM_TESTS=55 |
| 27 | |
| 28 | source $TESTDIR/utils/utils.sh |
| 29 | |
| 30 | function clean_path () |
| 31 | { |
| 32 | local trace_path=$1 |
| 33 | set -u |
| 34 | rm -rf $trace_path/* |
| 35 | set +u |
| 36 | } |
| 37 | |
| 38 | function test_kernel_streaming () |
| 39 | { |
| 40 | diag "Test kernel streaming clear" |
| 41 | create_lttng_session_uri $SESSION_NAME net://localhost |
| 42 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME |
| 43 | start_lttng_tracing_ok $SESSION_NAME |
| 44 | # TODO: place holder, support for streaming MUST be implemented |
| 45 | # This validate that for now we fail correctly |
| 46 | lttng_clear_session_fail $SESSION_NAME |
| 47 | |
| 48 | destroy_lttng_session_ok $SESSION_NAME |
| 49 | } |
| 50 | |
| 51 | function test_kernel_streaming_live () |
| 52 | { |
| 53 | diag "Test kernel streaming live clear" |
| 54 | create_lttng_session_uri $SESSION_NAME net://localhost "--live" |
| 55 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME |
| 56 | start_lttng_tracing_ok $SESSION_NAME |
| 57 | # TODO: place holder, support for streaming MUST be implemented |
| 58 | # This validate that for now we fail correctly |
| 59 | lttng_clear_session_fail $SESSION_NAME |
| 60 | |
| 61 | destroy_lttng_session_ok $SESSION_NAME |
| 62 | } |
| 63 | |
| 64 | function test_kernel_local () |
| 65 | { |
| 66 | diag "Test kernel local" |
| 67 | create_lttng_session_ok $SESSION_NAME $TRACE_PATH |
| 68 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME |
| 69 | start_lttng_tracing_ok $SESSION_NAME |
| 70 | # TODO: place holder, support for local MUST be implemented |
| 71 | lttng_clear_session_fail $SESSION_NAME |
| 72 | # TODO: validate that the previous chunk IS no more present |
| 73 | |
| 74 | destroy_lttng_session_ok $SESSION_NAME |
| 75 | } |
| 76 | |
| 77 | function do_kernel_snapshot () |
| 78 | { |
| 79 | local session_name=$1 |
| 80 | local trace_path=$2 |
| 81 | |
| 82 | lttng_enable_kernel_event $session_name $EVENT_NAME |
| 83 | start_lttng_tracing_ok $session_name |
| 84 | |
| 85 | # Generate 10 events that will sit in the buffers. |
| 86 | echo -n "10" > /proc/lttng-test-filter-event |
| 87 | |
| 88 | # Take a first snapshot and validate that the events are present. |
| 89 | lttng_snapshot_record $session_name |
| 90 | stop_lttng_tracing_ok $session_name |
| 91 | validate_trace_count $EVENT_NAME $trace_path 10 |
| 92 | |
| 93 | # Clean the output path |
| 94 | clean_path $trace_path |
| 95 | start_lttng_tracing_ok $session_name |
| 96 | |
| 97 | lttng_clear_session_ok $session_name |
| 98 | |
| 99 | # Make sure the subsequent snapshot is empty and valid. |
| 100 | lttng_snapshot_record $session_name |
| 101 | stop_lttng_tracing_ok $session_name |
| 102 | validate_trace_empty $trace_path |
| 103 | |
| 104 | # Clean the output path |
| 105 | clean_path $trace_path |
| 106 | start_lttng_tracing_ok $session_name |
| 107 | |
| 108 | # Make sure that everything still works, generate events and take a |
| 109 | # snapshot. |
| 110 | echo -n "10" > /proc/lttng-test-filter-event |
| 111 | lttng_snapshot_record $session_name |
| 112 | stop_lttng_tracing_ok $session_name |
| 113 | validate_trace_count $EVENT_NAME $trace_path 10 |
| 114 | } |
| 115 | |
| 116 | function test_kernel_streaming_snapshot () |
| 117 | { |
| 118 | diag "Test kernel streaming snapshot clear" |
| 119 | |
| 120 | create_lttng_session_uri $SESSION_NAME net://localhost "--snapshot" |
| 121 | do_kernel_snapshot $SESSION_NAME $TRACE_PATH |
| 122 | destroy_lttng_session_ok $SESSION_NAME |
| 123 | } |
| 124 | |
| 125 | function test_kernel_local_snapshot () |
| 126 | { |
| 127 | diag "Test kernel local snapshot clear" |
| 128 | |
| 129 | create_lttng_session_ok $SESSION_NAME $TRACE_PATH "--snapshot" |
| 130 | do_kernel_snapshot $SESSION_NAME $TRACE_PATH |
| 131 | destroy_lttng_session_ok $SESSION_NAME |
| 132 | } |
| 133 | |
| 134 | plan_tests $NUM_TESTS |
| 135 | |
| 136 | print_test_banner "$TEST_DESC" |
| 137 | |
| 138 | if [ "$(id -u)" == "0" ]; then |
| 139 | isroot=1 |
| 140 | else |
| 141 | isroot=0 |
| 142 | fi |
| 143 | |
| 144 | tests=( test_kernel_streaming |
| 145 | test_kernel_streaming_live |
| 146 | test_kernel_local |
| 147 | test_kernel_streaming_snapshot |
| 148 | test_kernel_local_snapshot |
| 149 | ) |
| 150 | |
| 151 | skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS || |
| 152 | { |
| 153 | validate_lttng_modules_present |
| 154 | |
| 155 | start_lttng_relayd "-o $TRACE_PATH" |
| 156 | start_lttng_sessiond |
| 157 | modprobe lttng-test |
| 158 | |
| 159 | for fct_test in ${tests[@]}; |
| 160 | do |
| 161 | SESSION_NAME=$(randstring 16 0) |
| 162 | ${fct_test} |
| 163 | clean_path $TRACE_PATH |
| 164 | done |
| 165 | |
| 166 | rmmod lttng-test |
| 167 | stop_lttng_sessiond |
| 168 | stop_lttng_relayd |
| 169 | } |
| 170 | |
| 171 | clean_path $TRACE_PATH |