3 # Copyright (C) - 2013 Christian Babeux <christian.babeux@efficios.com>
4 # Copyright (C) - 2014, 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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.
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
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.
19 TEST_DESC
="Kernel tracer - Clock override plugin"
23 SESSION_NAME
="clock_override"
26 EVENT_NAME
="lttng_test_filter_event"
28 TESTCMD
="echo -n 10 > /proc/lttng-test-filter-event"
30 METADATA_CLOCK_START_TOKEN
="clock {"
31 METADATA_CLOCK_END_TOKEN
="};"
41 "lttng_test_clock_override"
42 "83c63deb-7aa4-48fb-abda-946f400d76e6"
43 "Freeze time with 1KHz for regression test"
47 source $TESTDIR/utils
/utils.sh
49 function signal_cleanup
()
51 diag
"*** Exiting ***"
54 rmmod lttng-clock-plugin-test
59 function extract_clock_metadata
()
61 local metadata_file
=$1
62 local clock_metadata_file_destination
=$2
64 |
sed -n "/$METADATA_CLOCK_START_TOKEN/,/$METADATA_CLOCK_END_TOKEN/p" \
65 > $clock_metadata_file_destination
66 ok $?
"Clock metadata extraction"
69 function extract_clock_metadata_token
()
71 local clock_metadata_file
=$1
73 # Look for token and get value between ""
74 cat $clock_metadata_file |
grep $token |
awk -F"= |;" '{print $2}' |
tr -d '"'
77 function test_clock_override_metadata
()
79 local ctf_metadata_file
=$
(mktemp
-p $TRACE_PATH ctf-metadata.XXXXXX
)
80 local clock_metadata_file
=$
(mktemp
-p $TRACE_PATH clock-metadata.XXXXXX
)
83 diag
"Clock override plugin metadata test"
85 modprobe lttng-clock-plugin-test
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
93 stop_lttng_tracing_ok
$SESSION_NAME
94 destroy_lttng_session_ok
$SESSION_NAME
98 rmmod lttng-clock-plugin-test
101 local TRACE_METADATA_FILE_PATH
="$(find "$TRACE_PATH" -name metadata -type f)"
102 local TRACE_METADATA_DIR
="$(dirname "$TRACE_METADATA_FILE_PATH")"
104 $BABELTRACE_BIN -o ctf-metadata
-w $ctf_metadata_file $TRACE_METADATA_DIR
105 ok $?
"Metadata extraction from babeltrace"
107 extract_clock_metadata
$ctf_metadata_file $clock_metadata_file
109 test ${#METADATA_TOKEN_LIST[@]} -eq ${#CLOCK_TOKEN_VALUE[@]}
110 ok $?
"Tokens to check(${#METADATA_TOKEN_LIST[@]}) and provided values(${#CLOCK_TOKEN_VALUE[@]}) count is equal"
113 while [ "$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"
120 rm -rf $ctf_metadata_file
121 rm -rf $clock_metadata_file
124 function test_clock_override_timestamp
()
126 diag
"Clock override test"
128 # Test without the plugin
129 diag
"Plugin disabled"
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
138 stop_lttng_tracing_ok
$SESSION_NAME
139 destroy_lttng_session_ok
$SESSION_NAME
141 # Use Babeltrace with "-n all" to give a comma separated list for
142 # easy extraction of timestamps.
143 unique_timestamps_count
=$
($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"
150 # Test with clock override plugin.
151 diag
"Plugin enabled"
153 modprobe lttng-clock-plugin-test
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
162 stop_lttng_tracing_ok
$SESSION_NAME
163 destroy_lttng_session_ok
$SESSION_NAME
167 rmmod lttng-clock-plugin-test
170 # Use Babeltrace with "-n all" to give a comma separated list for
171 # easy extraction of timestamps.
172 unique_timestamps_count
=$
($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"
178 # MUST set TESTDIR before calling those functions
179 plan_tests
$NUM_TESTS
181 print_test_banner
"$TEST_DESC"
184 "test_clock_override_metadata"
185 "test_clock_override_timestamp"
188 TEST_COUNT
=${#TESTS[@]}
191 if [ "$(id -u)" == "0" ]; then
197 skip
$isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
199 trap signal_cleanup SIGTERM SIGINT
201 while [ "$i" -lt "$TEST_COUNT" ]; do
203 TRACE_PATH
=$
(mktemp
-d)