| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (C) 2013 David Goulet <dgoulet@efficios.com> |
| 4 | # |
| 5 | # SPDX-License-Identifier: LGPL-2.1-only |
| 6 | |
| 7 | TEST_DESC="Streaming - Snapshot Kernel tracing" |
| 8 | |
| 9 | CURDIR=$(dirname $0)/ |
| 10 | TESTDIR=$CURDIR/../../.. |
| 11 | EVENT_NAME="sched_switch" |
| 12 | SESSION_NAME="" |
| 13 | CHANNEL_NAME="chan1" |
| 14 | |
| 15 | TRACE_PATH=$(mktemp -d) |
| 16 | |
| 17 | NUM_TESTS=61 |
| 18 | |
| 19 | source $TESTDIR/utils/utils.sh |
| 20 | |
| 21 | function snapshot_add_output () |
| 22 | { |
| 23 | local sess_name=$1 |
| 24 | local trace_path=$2 |
| 25 | local name=$3 |
| 26 | local extra_opt="" |
| 27 | |
| 28 | if [ ! -z $name ]; then |
| 29 | extra_opt="-n $name" |
| 30 | fi |
| 31 | |
| 32 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN snapshot add-output -s $sess_name $extra_opt $trace_path >/dev/null 2>&1 |
| 33 | ok $? "Added snapshot output $trace_path" |
| 34 | } |
| 35 | |
| 36 | # Test a snapshot using a default name for the output destination. |
| 37 | function test_kernel_default_name_with_del() |
| 38 | { |
| 39 | diag "Test kernel snapshot streaming with default name with delete output" |
| 40 | create_lttng_session_no_output $SESSION_NAME |
| 41 | enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME |
| 42 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 43 | start_lttng_tracing_ok $SESSION_NAME |
| 44 | snapshot_add_output $SESSION_NAME "net://localhost" |
| 45 | lttng_snapshot_record $SESSION_NAME |
| 46 | |
| 47 | # Validate test |
| 48 | validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*/snapshot-1* |
| 49 | if [ $? -ne 0 ]; then |
| 50 | return $? |
| 51 | fi |
| 52 | |
| 53 | lttng_snapshot_del_output_ok $SESSION_NAME 1 |
| 54 | snapshot_add_output $SESSION_NAME "net://localhost" |
| 55 | lttng_snapshot_record $SESSION_NAME |
| 56 | |
| 57 | # Validate test with the next ID since a del output was done prior. |
| 58 | validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*/snapshot-2* |
| 59 | if [ $? -ne 0 ]; then |
| 60 | return $? |
| 61 | fi |
| 62 | |
| 63 | stop_lttng_tracing_ok $SESSION_NAME |
| 64 | destroy_lttng_session_ok $SESSION_NAME |
| 65 | |
| 66 | return 0 |
| 67 | } |
| 68 | |
| 69 | # Test a snapshot using a default name for the output destination. |
| 70 | function test_kernel_default_name() |
| 71 | { |
| 72 | diag "Test kernel snapshot streaming with default name" |
| 73 | create_lttng_session_no_output $SESSION_NAME |
| 74 | enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME |
| 75 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 76 | start_lttng_tracing_ok $SESSION_NAME |
| 77 | snapshot_add_output $SESSION_NAME "net://localhost" |
| 78 | lttng_snapshot_record $SESSION_NAME |
| 79 | stop_lttng_tracing_ok $SESSION_NAME |
| 80 | destroy_lttng_session_ok $SESSION_NAME |
| 81 | # Validate test |
| 82 | validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*/snapshot-1* |
| 83 | out=$? |
| 84 | |
| 85 | return $out |
| 86 | } |
| 87 | |
| 88 | # Test a snapshot using a custom name for the output destination. |
| 89 | function test_kernel_custom_name() |
| 90 | { |
| 91 | local out |
| 92 | local name="asnapshotname" |
| 93 | |
| 94 | diag "Test kernel snapshot streaming with custom name" |
| 95 | create_lttng_session_no_output $SESSION_NAME |
| 96 | enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME |
| 97 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 98 | start_lttng_tracing_ok $SESSION_NAME |
| 99 | snapshot_add_output $SESSION_NAME "net://localhost" $name |
| 100 | lttng_snapshot_record $SESSION_NAME |
| 101 | stop_lttng_tracing_ok $SESSION_NAME |
| 102 | destroy_lttng_session_ok $SESSION_NAME |
| 103 | |
| 104 | if ls $TRACE_PATH/$HOSTNAME/$SESSION_NAME*/$name* &> /dev/null; then |
| 105 | ok 0 "Custom name snapshot exists" |
| 106 | # Validate test |
| 107 | validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*/$name-* |
| 108 | out=$? |
| 109 | else |
| 110 | fail "No custom name snapshot found" |
| 111 | out=1 |
| 112 | fi |
| 113 | |
| 114 | return $out |
| 115 | } |
| 116 | |
| 117 | function test_kernel_n_snapshot() |
| 118 | { |
| 119 | diag "Test kernel snapshot streaming multiple consecutive snapshot" |
| 120 | create_lttng_session_no_output $SESSION_NAME |
| 121 | enable_lttng_mmap_overwrite_kernel_channel $SESSION_NAME $CHANNEL_NAME |
| 122 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME $CHANNEL_NAME |
| 123 | snapshot_add_output $SESSION_NAME "net://localhost" |
| 124 | |
| 125 | for i in {1..5}; |
| 126 | do |
| 127 | start_lttng_tracing_ok $SESSION_NAME |
| 128 | lttng_snapshot_record $SESSION_NAME |
| 129 | stop_lttng_tracing_ok $SESSION_NAME |
| 130 | validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*/snapshot-1* |
| 131 | if [ $? -ne 0 ]; then |
| 132 | return 1 |
| 133 | fi |
| 134 | set -u |
| 135 | rm -rf $TRACE_PATH/$HOSTNAME |
| 136 | set +u |
| 137 | done |
| 138 | |
| 139 | destroy_lttng_session_ok $SESSION_NAME |
| 140 | return 0 |
| 141 | } |
| 142 | |
| 143 | plan_tests $NUM_TESTS |
| 144 | |
| 145 | print_test_banner "$TEST_DESC" |
| 146 | |
| 147 | if [ "$(id -u)" == "0" ]; then |
| 148 | isroot=1 |
| 149 | else |
| 150 | isroot=0 |
| 151 | fi |
| 152 | |
| 153 | skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS || |
| 154 | { |
| 155 | validate_lttng_modules_present |
| 156 | |
| 157 | start_lttng_relayd "-o $TRACE_PATH" |
| 158 | start_lttng_sessiond |
| 159 | |
| 160 | tests=( test_kernel_default_name |
| 161 | test_kernel_custom_name |
| 162 | test_kernel_default_name_with_del |
| 163 | test_kernel_n_snapshot |
| 164 | ) |
| 165 | |
| 166 | for fct_test in ${tests[@]}; |
| 167 | do |
| 168 | SESSION_NAME=$(randstring 16 0) |
| 169 | ${fct_test} |
| 170 | if [ $? -eq 0 ]; then |
| 171 | # Only delete if successful |
| 172 | rm -rf $TRACE_PATH |
| 173 | else |
| 174 | break |
| 175 | fi |
| 176 | done |
| 177 | |
| 178 | stop_lttng_sessiond |
| 179 | stop_lttng_relayd |
| 180 | } |