tests/regression/tools/streaming/test_kernel

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2012 David Goulet <dgoulet@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 TEST_DESC="Streaming - Kernel tracing"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 EVENT_NAME="sched_switch"
  22 PID_RELAYD=0
  23 SESSION_NAME=""
  24
  25 TRACE_PATH=$(mktemp -d)
  26
  27 NUM_TESTS=10
  28
  29 source $TESTDIR/utils/utils.sh
  30
  31 # LTTng kernel modules check
  32 out=`ls /lib/modules/$(uname -r)/extra | grep lttng`
  33 if [ -z "$out" ]; then
  34         BAIL_OUT "LTTng modules not detected."
  35 fi
  36
  37 function lttng_create_session_uri
  38 {
  39         # Create session with default path
  40         $TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME -U net://localhost >/dev/null 2>&1
  41
  42         ok $? "Create session $SESSION_NAME"
  43 }
  44
  45 function test_kernel_before_start ()
  46 {
  47         diag "Test kernel streaming with event enable BEFORE start"
  48         lttng_create_session_uri
  49         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  50         start_lttng_tracing_ok $SESSION_NAME
  51         # Give a second
  52         sleep 1
  53         stop_lttng_tracing_ok $SESSION_NAME
  54         destroy_lttng_session_ok $SESSION_NAME
  55 }
  56
  57 # Deactivated since this feature is not yet available where we can enable
  58 # an event AFTERE tracing has started.
  59 function test_kernel_after_start ()
  60 {
  61         diag "Test kernel streaming with event enable AFTER start"
  62         lttng_create_session_uri
  63         start_lttng_tracing_ok $SESSION_NAME
  64         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  65         # Give a second
  66         sleep 1
  67         stop_lttng_tracing_ok $SESSION_NAME
  68         destroy_lttng_session_ok $SESSION_NAME
  69 }
  70
  71 plan_tests $NUM_TESTS
  72
  73 print_test_banner "$TEST_DESC"
  74
  75 if [ "$(id -u)" == "0" ]; then
  76         isroot=1
  77 else
  78         isroot=0
  79 fi
  80
  81 skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
  82 {
  83         start_lttng_relayd "-o $TRACE_PATH"
  84         start_lttng_sessiond
  85
  86         tests=( test_kernel_before_start )
  87
  88         for fct_test in ${tests[@]};
  89         do
  90                 SESSION_NAME=$(randstring 16 0)
  91                 ${fct_test}
  92
  93                 # Validate test
  94                 validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
  95                 if [ $? -eq 0 ]; then
  96                         # Only delete if successful
  97                         rm -rf $TRACE_PATH
  98                 else
  99                         break
 100                 fi
 101         done
 102
 103         stop_lttng_sessiond
 104         stop_lttng_relayd
 105 }