| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (C) - 2013 David Goulet <dgoulet@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 | TEST_DESC="Streaming - Snapshot Kernel tracing" |
| 18 | |
| 19 | CURDIR=$(dirname $0)/ |
| 20 | TESTDIR=$CURDIR/../../.. |
| 21 | EVENT_NAME="sched_switch" |
| 22 | PID_RELAYD=0 |
| 23 | SESSION_NAME="" |
| 24 | CHANNEL_NAME="chan1" |
| 25 | |
| 26 | TRACE_PATH=$(mktemp -d) |
| 27 | |
| 28 | NUM_TESTS=36 |
| 29 | |
| 30 | source $TESTDIR/utils/utils.sh |
| 31 | |
| 32 | # LTTng kernel modules check |
| 33 | out=`ls /lib/modules/$(uname -r)/extra | grep lttng` |
| 34 | if [ -z "$out" ]; then |
| 35 | BAIL_OUT "LTTng modules not detected." |
| 36 | fi |
| 37 | |
| 38 | function snapshot_add_output () |
| 39 | { |
| 40 | local sess_name=$1 |
| 41 | local trace_path=$2 |
| 42 | local name=$3 |
| 43 | local extra_opt="" |
| 44 | |
| 45 | if [ ! -z $name ]; then |
| 46 | extra_opt="-n $name" |
| 47 | fi |
| 48 | |
| 49 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output -s $sess_name $extra_opt $trace_path >/dev/null 2>&1 |
| 50 | ok $? "Added snapshot output $trace_path" |
| 51 | } |
| 52 | |
| 53 | # Test a snapshot using a default name for the output destination. |
| 54 | function test_kernel_default_name_with_del() |
| 55 | { |
| 56 | diag "Test kernel snapshot streaming with default name with delete output" |
| 57 | create_lttng_session_no_output $SESSION_NAME |
| 58 | enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME |
| 59 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 60 | start_lttng_tracing_ok $SESSION_NAME |
| 61 | snapshot_add_output $SESSION_NAME "net://localhost" |
| 62 | lttng_snapshot_record $SESSION_NAME |
| 63 | |
| 64 | # Validate test |
| 65 | validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-1* |
| 66 | if [ $? -ne 0 ]; then |
| 67 | return $? |
| 68 | fi |
| 69 | |
| 70 | lttng_snapshot_del_output_ok $SESSION_NAME 1 |
| 71 | snapshot_add_output $SESSION_NAME "net://localhost" |
| 72 | lttng_snapshot_record $SESSION_NAME |
| 73 | |
| 74 | # Validate test with the next ID since a del output was done prior. |
| 75 | validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-2* |
| 76 | if [ $? -ne 0 ]; then |
| 77 | return $? |
| 78 | fi |
| 79 | |
| 80 | stop_lttng_tracing_ok $SESSION_NAME |
| 81 | destroy_lttng_session_ok $SESSION_NAME |
| 82 | |
| 83 | return 0 |
| 84 | } |
| 85 | |
| 86 | # Test a snapshot using a default name for the output destination. |
| 87 | function test_kernel_default_name() |
| 88 | { |
| 89 | diag "Test kernel snapshot streaming with default name" |
| 90 | create_lttng_session_no_output $SESSION_NAME |
| 91 | enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME |
| 92 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 93 | start_lttng_tracing_ok $SESSION_NAME |
| 94 | snapshot_add_output $SESSION_NAME "net://localhost" |
| 95 | lttng_snapshot_record $SESSION_NAME |
| 96 | stop_lttng_tracing_ok $SESSION_NAME |
| 97 | destroy_lttng_session_ok $SESSION_NAME |
| 98 | # Validate test |
| 99 | validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/snapshot-1* |
| 100 | out=$? |
| 101 | |
| 102 | return $out |
| 103 | } |
| 104 | |
| 105 | # Test a snapshot using a custom name for the output destination. |
| 106 | function test_kernel_custom_name() |
| 107 | { |
| 108 | local out |
| 109 | local name="asnapshotname" |
| 110 | |
| 111 | diag "Test kernel snapshot streaming with custom name" |
| 112 | create_lttng_session_no_output $SESSION_NAME |
| 113 | enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME |
| 114 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 115 | start_lttng_tracing_ok $SESSION_NAME |
| 116 | snapshot_add_output $SESSION_NAME "net://localhost" $name |
| 117 | lttng_snapshot_record $SESSION_NAME |
| 118 | stop_lttng_tracing_ok $SESSION_NAME |
| 119 | destroy_lttng_session_ok $SESSION_NAME |
| 120 | |
| 121 | if ls $TRACE_PATH/$HOSTNAME/$name* &> /dev/null; then |
| 122 | ok 0 "Custom name snapshot exists" |
| 123 | # Validate test |
| 124 | validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$name-* |
| 125 | out=$? |
| 126 | else |
| 127 | fail "No custom name snapshot found" |
| 128 | out=1 |
| 129 | fi |
| 130 | |
| 131 | return $out |
| 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 | skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS || |
| 145 | { |
| 146 | start_lttng_relayd "-o $TRACE_PATH" |
| 147 | start_lttng_sessiond |
| 148 | |
| 149 | tests=( test_kernel_default_name test_kernel_custom_name \ |
| 150 | test_kernel_default_name_with_del ) |
| 151 | |
| 152 | for fct_test in ${tests[@]}; |
| 153 | do |
| 154 | SESSION_NAME=$(randstring 16 0) |
| 155 | ${fct_test} |
| 156 | if [ $? -eq 0 ]; then |
| 157 | # Only delete if successful |
| 158 | rm -rf $TRACE_PATH |
| 159 | else |
| 160 | break |
| 161 | fi |
| 162 | done |
| 163 | |
| 164 | stop_lttng_sessiond |
| 165 | stop_lttng_relayd |
| 166 | } |