Add UST namespace contexts tests
[lttng-tools.git] / tests / regression / kernel / test_clock_override
CommitLineData
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1#!/bin/bash
2#
3# Copyright (C) - 2013 Christian Babeux <christian.babeux@efficios.com>
4# Copyright (C) - 2014, 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5#
6# This program is free software; you can redistribute it and/or modify it
7# under the terms of the GNU General Public License, version 2 only, as
8# published by the Free Software Foundation.
9#
10# This program is distributed in the hope that it will be useful, but WITHOUT
11# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13# more details.
14#
15# You should have received a copy of the GNU General Public License along with
16# this program; if not, write to the Free Software Foundation, Inc., 51
17# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18
19TEST_DESC="Kernel tracer - Clock override plugin"
20
21CURDIR=$(dirname $0)/
22TESTDIR=$CURDIR/../..
23SESSION_NAME="clock_override"
24
25NUM_TESTS=30
26EVENT_NAME="lttng_test_filter_event"
27
28TESTCMD="echo -n 10 > /proc/lttng-test-filter-event"
29
30METADATA_CLOCK_START_TOKEN="clock {"
31METADATA_CLOCK_END_TOKEN="};"
32
33METADATA_TOKEN_LIST=(
34 "name"
35 "uuid"
36 "description"
37 "freq"
38)
39
40CLOCK_TOKEN_VALUE=(
41 "lttng_test_clock_override"
42 "83c63deb-7aa4-48fb-abda-946f400d76e6"
43 "Freeze time with 1KHz for regression test"
44 "1000"
45)
46
47source $TESTDIR/utils/utils.sh
48
49function signal_cleanup()
50{
51 diag "*** Exiting ***"
52 rmmod lttng-test
53 stop_lttng_sessiond
54 rmmod lttng-clock-plugin-test
55 rmmod lttng-clock
56 exit 1
57}
58
59function extract_clock_metadata()
60{
61 local metadata_file=$1
62 local clock_metadata_file_destination=$2
63 cat $metadata_file \
64 | sed -n "/$METADATA_CLOCK_START_TOKEN/,/$METADATA_CLOCK_END_TOKEN/p" \
65 > $clock_metadata_file_destination
66 ok $? "Clock metadata extraction"
67}
68
69function extract_clock_metadata_token()
70{
71 local clock_metadata_file=$1
72 local token=$2
73 # Look for token and get value between ""
74 cat $clock_metadata_file | grep $token | awk -F"= |;" '{print $2}' | tr -d '"'
75}
76
77function test_clock_override_metadata()
78{
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79 local ctf_metadata_file=$(mktemp -p $TRACE_PATH ctf-metadata.XXXXXX)
80 local clock_metadata_file=$(mktemp -p $TRACE_PATH clock-metadata.XXXXXX)
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81 local result=""
82
83 diag "Clock override plugin metadata test"
84
85 modprobe lttng-clock-plugin-test
86 start_lttng_sessiond
87 modprobe lttng-test
88
89 create_lttng_session_ok $SESSION_NAME $TRACE_PATH
90 enable_kernel_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
91 start_lttng_tracing_ok $SESSION_NAME
92 eval ${TESTCMD}
93 stop_lttng_tracing_ok $SESSION_NAME
94 destroy_lttng_session_ok $SESSION_NAME
95
96 rmmod lttng-test
97 stop_lttng_sessiond
98 rmmod lttng-clock-plugin-test
99 rmmod lttng-clock
100
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101 local TRACE_METADATA_FILE_PATH="$(find "$TRACE_PATH" -name metadata -type f)"
102 local TRACE_METADATA_DIR="$(dirname "$TRACE_METADATA_FILE_PATH")"
103
104 $BABELTRACE_BIN -o ctf-metadata -w $ctf_metadata_file $TRACE_METADATA_DIR
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105 ok $? "Metadata extraction from babeltrace"
106
107 extract_clock_metadata $ctf_metadata_file $clock_metadata_file
108
109 test ${#METADATA_TOKEN_LIST[@]} -eq ${#CLOCK_TOKEN_VALUE[@]}
110 ok $? "Tokens to check(${#METADATA_TOKEN_LIST[@]}) and provided values(${#CLOCK_TOKEN_VALUE[@]}) count is equal"
111
112 local counter=0
113 while [ "$counter" -lt "${#METADATA_TOKEN_LIST[@]}" ]; do
114 result=$(extract_clock_metadata_token $clock_metadata_file \
115 ${METADATA_TOKEN_LIST[$counter]})
116 test "$result" == "${CLOCK_TOKEN_VALUE[$counter]}"
117 ok $? "Token \"${METADATA_TOKEN_LIST[$counter]}\" expect:${CLOCK_TOKEN_VALUE[$counter]} got:$result"
118 let "counter++"
119 done
120 rm -rf $ctf_metadata_file
121 rm -rf $clock_metadata_file
122}
123
124function test_clock_override_timestamp()
125{
126 diag "Clock override test"
127
128 # Test without the plugin
129 diag "Plugin disabled"
130
131 start_lttng_sessiond
132 modprobe lttng-test
133
134 create_lttng_session_ok $SESSION_NAME $TRACE_PATH
135 enable_kernel_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
136 start_lttng_tracing_ok $SESSION_NAME
137 eval ${TESTCMD}
138 stop_lttng_tracing_ok $SESSION_NAME
139 destroy_lttng_session_ok $SESSION_NAME
140
141 # Use Babeltrace with "-n all" to give a comma separated list for
142 # easy extraction of timestamps.
143 unique_timestamps_count=$($BABELTRACE_BIN -n all $TRACE_PATH | \
144 cut -d, -f1 | uniq | wc -l)
145 test $unique_timestamps_count -gt 1
146 ok $? "Unique event timestamps without clock override: $unique_timestamps_count expect >1"
147 rmmod lttng-test
148 stop_lttng_sessiond
149
150 # Test with clock override plugin.
151 diag "Plugin enabled"
152
153 modprobe lttng-clock-plugin-test
154 start_lttng_sessiond
155 modprobe lttng-test
156
157 start_lttng_sessiond
158 create_lttng_session_ok $SESSION_NAME $TRACE_PATH
159 enable_kernel_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
160 start_lttng_tracing_ok $SESSION_NAME
161 eval ${TESTCMD}
162 stop_lttng_tracing_ok $SESSION_NAME
163 destroy_lttng_session_ok $SESSION_NAME
164
165 rmmod lttng-test
166 stop_lttng_sessiond
167 rmmod lttng-clock-plugin-test
168 rmmod lttng-clock
169
170 # Use Babeltrace with "-n all" to give a comma separated list for
171 # easy extraction of timestamps.
172 unique_timestamps_count=$($BABELTRACE_BIN -n all $TRACE_PATH | \
173 cut -d, -f1 | uniq | wc -l)
174 test $unique_timestamps_count -eq 1
175 ok $? "Unique event timestamps with clock override: $unique_timestamps_count expect 1"
176}
177
178# MUST set TESTDIR before calling those functions
179plan_tests $NUM_TESTS
180
181print_test_banner "$TEST_DESC"
182
183TESTS=(
184 "test_clock_override_metadata"
185 "test_clock_override_timestamp"
186)
187
188TEST_COUNT=${#TESTS[@]}
189i=0
190
191if [ "$(id -u)" == "0" ]; then
192 isroot=1
193else
194 isroot=0
195fi
196
197skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
198{
199 trap signal_cleanup SIGTERM SIGINT
200
201 while [ "$i" -lt "$TEST_COUNT" ]; do
202
203 TRACE_PATH=$(mktemp -d)
204
205 # Execute test
206 ${TESTS[$i]}
207
208 rm -rf $TRACE_PATH
209
210 let "i++"
211 done
212}
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