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806530f2 JR |
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 |