3 # Copyright (C) - 2012 David Goulet <dgoulet@efficios.com>
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.
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
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 - Kernel tracing"
20 TESTDIR
=$CURDIR/..
/..
/..
21 EVENT_NAME
="sched_switch"
25 TRACE_PATH
=$
(mktemp
-d)
29 source $TESTDIR/utils
/utils.sh
31 print_test_banner
"$TEST_DESC"
33 # LTTng kernel modules check
34 out
=`ls /lib/modules/$(uname -r)/extra | grep lttng`
35 if [ -z "$out" ]; then
36 BAIL_OUT
"LTTng modules not detected."
39 function lttng_create_session_uri
41 # Create session with default path
42 $TESTDIR/..
/src
/bin
/lttng
/$LTTNG_BIN create
$SESSION_NAME -U net
://localhost
>/dev
/null
2>&1
44 ok $?
"Create session $SESSION_NAME"
47 function test_kernel_before_start
()
49 diag
"Test kernel streaming with event enable BEFORE start"
50 lttng_create_session_uri
51 lttng_enable_kernel_event
$SESSION_NAME $EVENT_NAME
52 start_lttng_tracing
$SESSION_NAME
55 stop_lttng_tracing
$SESSION_NAME
56 destroy_lttng_session
$SESSION_NAME
58 # We can not predict _yet_ when the trace is available so we have to do a
59 # arbitratry sleep to validate the trace.
60 diag
"Wait 3 seconds for the trace to be written on disk"
61 for i
in `seq 1 3`; do
66 # Deactivated since this feature is not yet available where we can enable
67 # an event AFTERE tracing has started.
68 function test_kernel_after_start
()
70 diag
"Test kernel streaming with event enable AFTER start"
71 lttng_create_session_uri
72 start_lttng_tracing
$SESSION_NAME
73 lttng_enable_kernel_event
$SESSION_NAME $EVENT_NAME
76 stop_lttng_tracing
$SESSION_NAME
77 destroy_lttng_session
$SESSION_NAME
82 if [ "$(id -u)" == "0" ]; then
88 skip
$isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
90 start_lttng_relayd
"-o $TRACE_PATH"
93 tests
=( test_kernel_before_start
)
95 for fct_test
in ${tests[@]};
97 SESSION_NAME
=$
(randstring
16 0)
101 validate_trace
$EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
102 if [ $?
-eq 0 ]; then
103 # Only delete if successful