tests/regression/tools/live/test_kernel

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2013 Julien Desfossez <julien.desfossez@efficios.com>
   4 #                      David Goulet <dgoulet@efficios.com>
   5 #
   6 # This library is free software; you can redistribute it and/or modify it under
   7 # the terms of the GNU Lesser General Public License as published by the Free
   8 # Software Foundation; version 2.1 of the License.
   9 #
  10 # This library is distributed in the hope that it will be useful, but WITHOUT
  11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  12 # FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
  13 # details.
  14 #
  15 # You should have received a copy of the GNU Lesser General Public License
  16 # along with this library; if not, write to the Free Software Foundation, Inc.,
  17 # 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  18
  19 TEST_DESC="Live - Kernel space tracing"
  20
  21 CURDIR=$(dirname $0)/
  22 TESTDIR=$CURDIR/../../../
  23 SESSIOND_BIN="lttng-sessiond"
  24 RELAYD_BIN="lttng-relayd"
  25 LTTNG_BIN="lttng"
  26 BABELTRACE_BIN="babeltrace"
  27 NR_ITER=1
  28 NR_USEC_WAIT=1
  29 DELAY_USEC=2000000
  30
  31 SESSION_NAME="live"
  32 EVENT_NAME="sched_switch"
  33
  34 TRACE_PATH=$(mktemp -d)
  35
  36 DIR=$(readlink -f $TESTDIR)
  37
  38 source $TESTDIR/utils/utils.sh
  39
  40 function setup_live_tracing()
  41 {
  42         # Create session with default path
  43         $TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME --live $DELAY_USEC \
  44                 -U net://localhost >/dev/null 2>&1
  45
  46         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$EVENT_NAME" -s $SESSION_NAME -k >/dev/null 2>&1
  47         $TESTDIR/../src/bin/lttng/$LTTNG_BIN start $SESSION_NAME >/dev/null 2>&1
  48 }
  49
  50 function clean_live_tracing()
  51 {
  52         $TESTDIR/../src/bin/lttng/$LTTNG_BIN stop $SESSION_NAME >/dev/null 2>&1
  53         $TESTDIR/../src/bin/lttng/$LTTNG_BIN destroy $SESSION_NAME >/dev/null 2>&1
  54         rm -rf $TRACE_PATH
  55 }
  56
  57 # Need root access for kernel tracing.
  58 if [ "$(id -u)" == "0" ]; then
  59         isroot=1
  60 else
  61         echo "Root access is needed. Skipping all tests."
  62         exit 0
  63 fi
  64
  65 start_lttng_sessiond_notap
  66 start_lttng_relayd_notap "-o $TRACE_PATH"
  67
  68 setup_live_tracing
  69
  70 # Start the live test
  71 $TESTDIR/regression/tools/live/live_test
  72
  73 clean_live_tracing
  74
  75 stop_lttng_relayd_notap
  76 stop_lttng_sessiond_notap