tests/regression/tools/regen-statedump/test_kernel

   1 #!/bin/bash
   2 #
   3 # Copyright (C) - 2016 Julien Desfossez <jdesfossez@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="Regenerate the statedump - Kernel tracing"
  18
  19 CURDIR=$(dirname $0)/
  20 TESTDIR=$CURDIR/../../..
  21 EVENT_NAME="lttng_test_filter_event"
  22 PID_RELAYD=0
  23 SESSION_NAME=""
  24 EVENT_NAME="lttng_statedump_start,lttng_statedump_end"
  25
  26 TRACE_PATH=$(mktemp -d)
  27
  28 NUM_TESTS=11
  29
  30 source $TESTDIR/utils/utils.sh
  31
  32 # LTTng kernel modules check
  33 out=`ls /lib/modules/$(uname -r)/extra | grep lttng`
  34 if [ -z "$out" ]; then
  35         BAIL_OUT "LTTng modules not detected."
  36 fi
  37
  38 function test_kernel_local ()
  39 {
  40         diag "Test kernel local with statedump regeneration"
  41         create_lttng_session_ok $SESSION_NAME $TRACE_PATH
  42         lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
  43         start_lttng_tracing_ok $SESSION_NAME
  44         echo -n "100" > /proc/lttng-test-filter-event
  45         regenerate_statedump_ok $SESSION_NAME
  46         stop_lttng_tracing_ok $SESSION_NAME
  47         validate_trace_count $EVENT_NAME $TRACE_PATH 4
  48         if [ $? -eq 0 ]; then
  49                 # Only delete if successful
  50                 rm -rf $TRACE_PATH
  51         fi
  52         destroy_lttng_session_ok $SESSION_NAME
  53 }
  54
  55 plan_tests $NUM_TESTS
  56
  57 print_test_banner "$TEST_DESC"
  58
  59 if [ "$(id -u)" == "0" ]; then
  60         isroot=1
  61 else
  62         isroot=0
  63 fi
  64
  65 skip $isroot "Root access is needed. Skipping all kernel streaming tests." $NUM_TESTS ||
  66 {
  67         start_lttng_sessiond
  68         modprobe lttng-test
  69
  70         tests=( test_kernel_local )
  71
  72         for fct_test in ${tests[@]};
  73         do
  74                 SESSION_NAME=$(randstring 16 0)
  75                 ${fct_test}
  76         done
  77
  78         rmmod lttng-test
  79         stop_lttng_sessiond
  80 }