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 NR_ITER=1
  24 NR_USEC_WAIT=1
  25 DELAY_USEC=2000000
  26
  27 SESSION_NAME="live"
  28 EVENT_NAME="sched_switch"
  29
  30 TRACE_PATH=$(mktemp -d)
  31
  32 DIR=$(readlink -f $TESTDIR)
  33
  34 source $TESTDIR/utils/utils.sh
  35
  36 function setup_live_tracing()
  37 {
  38         # Create session with default path
  39         $TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME --live $DELAY_USEC \
  40                 -U net://localhost >/dev/null 2>&1
  41
  42         $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-event "$EVENT_NAME" -s $SESSION_NAME -k >/dev/null 2>&1
  43         $TESTDIR/../src/bin/lttng/$LTTNG_BIN start $SESSION_NAME >/dev/null 2>&1
  44 }
  45
  46 function clean_live_tracing()
  47 {
  48         $TESTDIR/../src/bin/lttng/$LTTNG_BIN stop $SESSION_NAME >/dev/null 2>&1
  49         $TESTDIR/../src/bin/lttng/$LTTNG_BIN destroy $SESSION_NAME >/dev/null 2>&1
  50         rm -rf $TRACE_PATH
  51 }
  52
  53 # Need root access for kernel tracing.
  54 if [ "$(id -u)" == "0" ]; then
  55         isroot=1
  56 else
  57         echo "Root access is needed. Skipping all tests."
  58         exit 0
  59 fi
  60
  61 start_lttng_sessiond_notap
  62 start_lttng_relayd_notap "-o $TRACE_PATH"
  63
  64 setup_live_tracing
  65
  66 # Start the live test
  67 $TESTDIR/regression/tools/live/live_test
  68
  69 clean_live_tracing
  70
  71 stop_lttng_relayd_notap
  72 stop_lttng_sessiond_notap