SoW-2020-0002: Trace Hit Counters: trigger error reporting integration
[lttng-tools.git] / tests / regression / tools / trigger / test_trigger_kernel
1 #!/bin/bash
2 #
3 # Copyright (C) - 2017 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 CURDIR=$(dirname $0)/
19 TESTDIR=$CURDIR/../../../
20
21 TMPDIR=$(mktemp -d)
22
23 #This is needed since the testpoint create a pipe with the consumerd type suffixed
24 TESTPOINT_BASE_PATH=$(readlink -f "$TMPDIR/lttng.t_p_n")
25 TESTPOINT_PIPE_PATH=$(mktemp -u "${TESTPOINT_BASE_PATH}.XXXXXX")
26 TESTPOIT_ARGS="CONSUMER_PAUSE_PIPE_PATH=${TESTPOINT_PIPE_PATH} LTTNG_TESTPOINT_ENABLE=1"
27 TESTPOINT=$(readlink -f ${CURDIR}/.libs/libpause_consumer.so)
28
29
30 TESTAPP_PATH="$TESTDIR/utils/testapp"
31 TESTAPP_NAME="gen-ust-events"
32 TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
33 TESTAPP_STATE_PATH=$(mktemp -u "$TMPDIR/application_state.XXXXXXXXXX")
34
35 NR_ITER=-1
36 NR_USEC_WAIT=5
37
38 SESSION_NAME="my_session"
39 CHANNEL_NAME="my_channel"
40
41 TRACE_PATH=$(mktemp -d)
42 PAGE_SIZE=$(getconf PAGE_SIZE)
43
44 DIR=$(readlink -f $TESTDIR)
45 NUM_TESTS=104
46
47 source $TESTDIR/utils/utils.sh
48
49 function kernel_event_generator_toogle_state
50 {
51 kernel_event_generator_suspended=$((kernel_event_generator_suspended==0))
52
53 }
54 function kernel_event_generator
55 {
56 state_file=$1
57 kernel_event_generator_suspended=0
58 trap kernel_event_generator_toogle_state SIGUSR1
59
60 while (true); do
61 if [[ $kernel_event_generator_suspended -eq "1" ]]; then
62 touch $state_file
63 sleep 0.5
64 else
65 if [[ -f $state_file ]]; then
66 rm $state_file 2> /dev/null
67 fi
68 echo -n "1000" > /proc/lttng-test-filter-event 2> /dev/null
69 fi
70 done
71 }
72
73 function kernel_test
74 {
75 local consumerd_pipe=()
76 local event_name="lttng_test_filter_event"
77
78 modprobe lttng-test
79
80 LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 CONSUMER_PAUSE_PIPE_PATH=${TESTPOINT_PIPE_PATH} LD_PRELOAD=${TESTPOINT}"
81 start_lttng_sessiond_notap
82
83 create_lttng_session_notap $SESSION_NAME $TRACE_PATH
84
85 lttng_enable_kernel_channel_notap $SESSION_NAME $CHANNEL_NAME --subbuf-size=$PAGE_SIZE
86 enable_kernel_lttng_event_notap $SESSION_NAME $event_name $CHANNEL_NAME
87
88 #This is needed since the testpoint create a pipe with the consumer type suffixed
89 for f in "$TESTPOINT_BASE_PATH"*; do
90 consumerd_pipe+=("$f")
91 done
92
93 kernel_event_generator $TESTAPP_STATE_PATH &
94 APP_PID=$!
95
96 $CURDIR/notification LTTNG_DOMAIN_KERNEL $SESSION_NAME $CHANNEL_NAME $APP_PID $TESTAPP_STATE_PATH ${consumerd_pipe[@]}
97
98 destroy_lttng_session_notap $SESSION_NAME
99 stop_lttng_sessiond_notap
100
101 kill -9 $APP_PID
102 wait $APP_PID 2> /dev/null
103
104
105 rmmod lttng-test
106
107 rm -rf ${consumerd_pipe[@]} 2> /dev/null
108 }
109
110 if [ "$(id -u)" == "0" ]; then
111 validate_lttng_modules_present
112 kernel_test
113 else
114 # Kernel tests are skipped.
115 plan_tests $NUM_TESTS
116 skip 0 "Root access is needed. Skipping all kernel notification tests." $NUM_TESTS
117 fi
118
119 # Just in case cleanup
120 rm -rf $TRACE_PATH
121 rm -rf $TMPDIR
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