| 1 | #!/bin/bash |
| 2 | # |
| 3 | # Copyright (C) 2013 Julien Desfossez <julien.desfossez@efficios.com> |
| 4 | # Copyright (C) 2013 David Goulet <dgoulet@efficios.com> |
| 5 | # |
| 6 | # SPDX-License-Identifier: LGPL-2.1-only |
| 7 | |
| 8 | TEST_DESC="Live - Kernel space tracing" |
| 9 | |
| 10 | CURDIR=$(dirname $0)/ |
| 11 | TESTDIR=$CURDIR/../../../ |
| 12 | DELAY_USEC=2000000 |
| 13 | |
| 14 | SESSION_NAME="live" |
| 15 | EVENT_NAME="lttng_test_filter_event" |
| 16 | |
| 17 | TRACE_PATH=$(mktemp -d) |
| 18 | |
| 19 | DIR=$(readlink -f $TESTDIR) |
| 20 | |
| 21 | NUM_TESTS=10 |
| 22 | |
| 23 | source $TESTDIR/utils/utils.sh |
| 24 | |
| 25 | # MUST set TESTDIR before calling those functions |
| 26 | plan_tests $NUM_TESTS |
| 27 | |
| 28 | print_test_banner "$TEST_DESC" |
| 29 | |
| 30 | function setup_live_tracing() |
| 31 | { |
| 32 | # Create session with default path |
| 33 | $TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME --live $DELAY_USEC \ |
| 34 | -U net://localhost >/dev/null 2>&1 |
| 35 | ok $? "Create session in live mode with delay $DELAY_USEC" |
| 36 | |
| 37 | lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME |
| 38 | start_lttng_tracing_ok $SESSION_NAME |
| 39 | } |
| 40 | |
| 41 | function clean_live_tracing() |
| 42 | { |
| 43 | stop_lttng_tracing_ok $SESSION_NAME |
| 44 | destroy_lttng_session_ok $SESSION_NAME |
| 45 | } |
| 46 | |
| 47 | # Need root access for kernel tracing. |
| 48 | if [ "$(id -u)" == "0" ]; then |
| 49 | isroot=1 |
| 50 | else |
| 51 | isroot=0 |
| 52 | fi |
| 53 | |
| 54 | skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS || |
| 55 | { |
| 56 | modprobe lttng-test |
| 57 | |
| 58 | start_lttng_sessiond |
| 59 | start_lttng_relayd "-o $TRACE_PATH" |
| 60 | |
| 61 | setup_live_tracing |
| 62 | |
| 63 | echo -n "1" > /proc/lttng-test-filter-event |
| 64 | |
| 65 | clean_live_tracing |
| 66 | |
| 67 | validate_trace $EVENT_NAME $TRACE_PATH |
| 68 | rm -rf $TRACE_PATH |
| 69 | |
| 70 | stop_lttng_relayd |
| 71 | stop_lttng_sessiond |
| 72 | |
| 73 | modprobe --remove lttng-test |
| 74 | } |