tests/tools/streaming/run-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 source $TESTDIR/utils.sh
  28
  29 print_test_banner "$TEST_DESC"
  30
  31 if [ "$(id -u)" != "0" ]; then
  32         echo "This test must be running as root. Aborting"
  33         # Exit status 0 so the tests can continue
  34         exit 0
  35 fi
  36
  37 # LTTng kernel modules check
  38 out=`ls /lib/modules/$(uname -r)/extra | grep lttng`
  39 if [ -z "$out" ]; then
  40         echo "LTTng modules not detected. Aborting kernel tests!"
  41         echo ""
  42         # Exit status 0 so the tests can continue
  43         exit 0
  44 fi
  45
  46 function lttng_create_session_uri
  47 {
  48         echo -n "Creating session $SESSION_NAME... "
  49         # Create session with default path
  50         $TESTDIR/../src/bin/lttng/$LTTNG_BIN create $SESSION_NAME -U net://localhost >/dev/null 2>&1
  51         if [ $? -eq 1 ]; then
  52                 print_fail
  53                 return 1
  54         else
  55                 print_ok
  56         fi
  57 }
  58
  59 function test_kernel_before_start ()
  60 {
  61         echo -e "\n=== Testing kernel streaming with event enable BEFORE start\n"
  62         lttng_create_session_uri
  63         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  64         start_lttng_tracing $SESSION_NAME
  65         # Give a second
  66         sleep 1
  67         stop_lttng_tracing $SESSION_NAME
  68         destroy_lttng_session $SESSION_NAME
  69
  70         # We can not predict _yet_ when the trace is available so we have to do a
  71         # arbitratry sleep to validate the trace.
  72         echo -n "Waiting 3 seconds for the trace to be written on disk "
  73         for i in `seq 1 3`; do
  74                 echo -n "."
  75                 sleep 1
  76         done
  77         echo ""
  78 }
  79
  80 # Deactivated since this feature is not yet available where we can enable
  81 # an event AFTERE tracing has started.
  82 function test_kernel_after_start ()
  83 {
  84         echo -e "\n=== Testing kernel streaming with event enable AFTER start\n"
  85         lttng_create_session_uri
  86         start_lttng_tracing $SESSION_NAME
  87         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  88         # Give a second
  89         sleep 1
  90         stop_lttng_tracing $SESSION_NAME
  91         destroy_lttng_session $SESSION_NAME
  92 }
  93
  94 start_lttng_sessiond
  95 start_lttng_relayd "-o $TRACE_PATH"
  96
  97 tests=( test_kernel_before_start )
  98
  99 for fct_test in ${tests[@]};
 100 do
 101         SESSION_NAME=$(randstring 16 0)
 102         ${fct_test}
 103
 104         # Validate test
 105         validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
 106         if [ $? -eq 0 ]; then
 107                 # Only delete if successful
 108                 rm -rf $TRACE_PATH
 109         else
 110                 break
 111         fi
 112 done
 113
 114 echo ""
 115 stop_lttng_sessiond
 116 stop_lttng_relayd
 117
 118
 119 exit $out