--- /dev/null
+#!/bin/bash
+#
+# Copyright (C) - 2013 Christian Babeux <christian.babeux@efficios.com>
+# Copyright (C) - 2014, 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License, version 2 only, as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc., 51
+# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+TEST_DESC="Kernel tracer - Clock override plugin"
+
+CURDIR=$(dirname $0)/
+TESTDIR=$CURDIR/../..
+SESSION_NAME="clock_override"
+
+NUM_TESTS=30
+EVENT_NAME="lttng_test_filter_event"
+
+TESTCMD="echo -n 10 > /proc/lttng-test-filter-event"
+
+METADATA_CLOCK_START_TOKEN="clock {"
+METADATA_CLOCK_END_TOKEN="};"
+
+METADATA_TOKEN_LIST=(
+ "name"
+ "uuid"
+ "description"
+ "freq"
+)
+
+CLOCK_TOKEN_VALUE=(
+ "lttng_test_clock_override"
+ "83c63deb-7aa4-48fb-abda-946f400d76e6"
+ "Freeze time with 1KHz for regression test"
+ "1000"
+)
+
+source $TESTDIR/utils/utils.sh
+
+function signal_cleanup()
+{
+ diag "*** Exiting ***"
+ rmmod lttng-test
+ stop_lttng_sessiond
+ rmmod lttng-clock-plugin-test
+ rmmod lttng-clock
+ exit 1
+}
+
+function extract_clock_metadata()
+{
+ local metadata_file=$1
+ local clock_metadata_file_destination=$2
+ cat $metadata_file \
+ | sed -n "/$METADATA_CLOCK_START_TOKEN/,/$METADATA_CLOCK_END_TOKEN/p" \
+ > $clock_metadata_file_destination
+ ok $? "Clock metadata extraction"
+}
+
+function extract_clock_metadata_token()
+{
+ local clock_metadata_file=$1
+ local token=$2
+ # Look for token and get value between ""
+ cat $clock_metadata_file | grep $token | awk -F"= |;" '{print $2}' | tr -d '"'
+}
+
+function test_clock_override_metadata()
+{
+ local ctf_metadata_file=$(mktemp -p $TRACE_PATH ctf-metadata.XXXXX)
+ local clock_metadata_file=$(mktemp -p $TRACE_PATH clock-metadata.XXXXX)
+ local result=""
+
+ diag "Clock override plugin metadata test"
+
+ modprobe lttng-clock-plugin-test
+ start_lttng_sessiond
+ modprobe lttng-test
+
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+ enable_kernel_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ eval ${TESTCMD}
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+
+ rmmod lttng-test
+ stop_lttng_sessiond
+ rmmod lttng-clock-plugin-test
+ rmmod lttng-clock
+
+ $BABELTRACE_BIN -o ctf-metadata -w $ctf_metadata_file $TRACE_PATH
+ ok $? "Metadata extraction from babeltrace"
+
+ extract_clock_metadata $ctf_metadata_file $clock_metadata_file
+
+ test ${#METADATA_TOKEN_LIST[@]} -eq ${#CLOCK_TOKEN_VALUE[@]}
+ ok $? "Tokens to check(${#METADATA_TOKEN_LIST[@]}) and provided values(${#CLOCK_TOKEN_VALUE[@]}) count is equal"
+
+ local counter=0
+ while [ "$counter" -lt "${#METADATA_TOKEN_LIST[@]}" ]; do
+ result=$(extract_clock_metadata_token $clock_metadata_file \
+ ${METADATA_TOKEN_LIST[$counter]})
+ test "$result" == "${CLOCK_TOKEN_VALUE[$counter]}"
+ ok $? "Token \"${METADATA_TOKEN_LIST[$counter]}\" expect:${CLOCK_TOKEN_VALUE[$counter]} got:$result"
+ let "counter++"
+ done
+ rm -rf $ctf_metadata_file
+ rm -rf $clock_metadata_file
+}
+
+function test_clock_override_timestamp()
+{
+ diag "Clock override test"
+
+ # Test without the plugin
+ diag "Plugin disabled"
+
+ start_lttng_sessiond
+ modprobe lttng-test
+
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+ enable_kernel_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ eval ${TESTCMD}
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+
+ # Use Babeltrace with "-n all" to give a comma separated list for
+ # easy extraction of timestamps.
+ unique_timestamps_count=$($BABELTRACE_BIN -n all $TRACE_PATH | \
+ cut -d, -f1 | uniq | wc -l)
+ test $unique_timestamps_count -gt 1
+ ok $? "Unique event timestamps without clock override: $unique_timestamps_count expect >1"
+ rmmod lttng-test
+ stop_lttng_sessiond
+
+ # Test with clock override plugin.
+ diag "Plugin enabled"
+
+ modprobe lttng-clock-plugin-test
+ start_lttng_sessiond
+ modprobe lttng-test
+
+ start_lttng_sessiond
+ create_lttng_session_ok $SESSION_NAME $TRACE_PATH
+ enable_kernel_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
+ start_lttng_tracing_ok $SESSION_NAME
+ eval ${TESTCMD}
+ stop_lttng_tracing_ok $SESSION_NAME
+ destroy_lttng_session_ok $SESSION_NAME
+
+ rmmod lttng-test
+ stop_lttng_sessiond
+ rmmod lttng-clock-plugin-test
+ rmmod lttng-clock
+
+ # Use Babeltrace with "-n all" to give a comma separated list for
+ # easy extraction of timestamps.
+ unique_timestamps_count=$($BABELTRACE_BIN -n all $TRACE_PATH | \
+ cut -d, -f1 | uniq | wc -l)
+ test $unique_timestamps_count -eq 1
+ ok $? "Unique event timestamps with clock override: $unique_timestamps_count expect 1"
+}
+
+# MUST set TESTDIR before calling those functions
+plan_tests $NUM_TESTS
+
+print_test_banner "$TEST_DESC"
+
+TESTS=(
+ "test_clock_override_metadata"
+ "test_clock_override_timestamp"
+)
+
+TEST_COUNT=${#TESTS[@]}
+i=0
+
+if [ "$(id -u)" == "0" ]; then
+ isroot=1
+else
+ isroot=0
+fi
+
+skip $isroot "Root access is needed. Skipping all tests." $NUM_TESTS ||
+{
+ trap signal_cleanup SIGTERM SIGINT
+
+ while [ "$i" -lt "$TEST_COUNT" ]; do
+
+ TRACE_PATH=$(mktemp -d)
+
+ # Execute test
+ ${TESTS[$i]}
+
+ rm -rf $TRACE_PATH
+
+ let "i++"
+ done
+}
projects / lttng-tools.git / commitdiff
