[lttng-tools.git] / tests / regression / tools / notification / test_notification_kernel_syscall

#!/bin/bash
#
# Copyright (C) 2017 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
#
# SPDX-License-Identifier: LGPL-2.1-only

CURDIR=$(dirname $0)/
TESTDIR=$CURDIR/../../../

TMPDIR=$(mktemp -d)

#This is needed since the testpoint create a pipe with the consumerd type suffixed
TESTPOINT_BASE_PATH=$(readlink -f "$TMPDIR/lttng.t_p_n")
TESTPOINT_PIPE_PATH=$(mktemp -u "${TESTPOINT_BASE_PATH}.XXXXXX")
TESTPOINT=$(readlink -f ${CURDIR}/.libs/libpause_consumer.so)


TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-events"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
TESTAPP_STATE_PATH=$(mktemp -u "$TMPDIR/application_state.XXXXXXXXXX")

SYSCALL_TESTAPP_NAME="gen-syscall-events"
SYSCALL_TESTAPP_BIN="$TESTAPP_PATH/$SYSCALL_TESTAPP_NAME/$SYSCALL_TESTAPP_NAME"

USERSPACE_PROBE_ELF_TESTAPP_NAME="userspace-probe-elf-binary"
USERSPACE_PROBE_ELF_TESTAPP_BIN="$TESTAPP_PATH/$USERSPACE_PROBE_ELF_TESTAPP_NAME/.libs/$USERSPACE_PROBE_ELF_TESTAPP_NAME"

SESSION_NAME="my_session"
CHANNEL_NAME="my_channel"

TRACE_PATH=$(mktemp -d)
PAGE_SIZE=$(getconf PAGE_SIZE)

DIR=$(readlink -f $TESTDIR)
NUM_TESTS=104

source $TESTDIR/utils/utils.sh

function kernel_event_generator_toggle_state
{
	kernel_event_generator_suspended=$((kernel_event_generator_suspended==0))
}

function generate_filter_events
{
	/bin/echo -n "10" > /proc/lttng-test-filter-event 2> /dev/null
}

function generate_syscalls
{
	# Pass /dev/null so to generate the syscall right away.
	$SYSCALL_TESTAPP_BIN /dev/null
}

function userspace_probe_testapp
{
	 $USERSPACE_PROBE_ELF_TESTAPP_BIN
}

function kernel_event_generator
{
	command_to_run=$1
	state_file=$2
	kernel_event_generator_suspended=0
	trap kernel_event_generator_toggle_state SIGUSR1

	while (true); do
		if [[ $kernel_event_generator_suspended -eq "1" ]]; then
			touch $state_file
			sleep 0.5
		else
			if [[ -f $state_file ]]; then
				rm $state_file 2> /dev/null
			fi
			$command_to_run
		fi
	done
}

function test_kernel_syscall_notification
{
	kernel_event_generator generate_syscalls $TESTAPP_STATE_PATH &
	APP_PID=$!

	$CURDIR/notification 5 LTTNG_DOMAIN_KERNEL $APP_PID $TESTAPP_STATE_PATH

	kill -9 $APP_PID
	wait $APP_PID 2> /dev/null
}

if [ "$(id -u)" == "0" ]; then
	consumerd_pipe=()

	validate_lttng_modules_present

	# This is needed since the testpoint create a pipe with the consumer
	# type suffixed.
	for f in "$TESTPOINT_BASE_PATH"*; do
		consumerd_pipe+=("$f")
	done

	modprobe lttng-test

	LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 \
		CONSUMER_PAUSE_PIPE_PATH=${TESTPOINT_PIPE_PATH} \
		LD_PRELOAD=${TESTPOINT}"

	start_lttng_sessiond_notap

	test_kernel_syscall_notification

	stop_lttng_sessiond_notap
	rmmod lttng-test

	rm -rf ${consumerd_pipe[@]} 2> /dev/null
else
	# Kernel tests are skipped.
	plan_tests $NUM_TESTS
	skip 0 "Root access is needed. Skipping all kernel notification tests." $NUM_TESTS
fi

# Just in case cleanup
rm -rf $TRACE_PATH
rm -rf $TMPDIR
Commit	Line	Data
	1	#!/bin/bash
	2	#
	3	# Copyright (C) 2017 Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
	4	#
	5	# SPDX-License-Identifier: LGPL-2.1-only
	6
	7	CURDIR=$(dirname $0)/
	8	TESTDIR=$CURDIR/../../../
	9
	10	TMPDIR=$(mktemp -d)
	11
	12	#This is needed since the testpoint create a pipe with the consumerd type suffixed
	13	TESTPOINT_BASE_PATH=$(readlink -f "$TMPDIR/lttng.t_p_n")
	14	TESTPOINT_PIPE_PATH=$(mktemp -u "${TESTPOINT_BASE_PATH}.XXXXXX")
	15	TESTPOINT=$(readlink -f ${CURDIR}/.libs/libpause_consumer.so)
	16
	17
	18	TESTAPP_PATH="$TESTDIR/utils/testapp"
	19	TESTAPP_NAME="gen-ust-events"
	20	TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
	21	TESTAPP_STATE_PATH=$(mktemp -u "$TMPDIR/application_state.XXXXXXXXXX")
	22
	23	SYSCALL_TESTAPP_NAME="gen-syscall-events"
	24	SYSCALL_TESTAPP_BIN="$TESTAPP_PATH/$SYSCALL_TESTAPP_NAME/$SYSCALL_TESTAPP_NAME"
	25
	26	USERSPACE_PROBE_ELF_TESTAPP_NAME="userspace-probe-elf-binary"
	27	USERSPACE_PROBE_ELF_TESTAPP_BIN="$TESTAPP_PATH/$USERSPACE_PROBE_ELF_TESTAPP_NAME/.libs/$USERSPACE_PROBE_ELF_TESTAPP_NAME"
	28
	29	SESSION_NAME="my_session"
	30	CHANNEL_NAME="my_channel"
	31
	32	TRACE_PATH=$(mktemp -d)
	33	PAGE_SIZE=$(getconf PAGE_SIZE)
	34
	35	DIR=$(readlink -f $TESTDIR)
	36	NUM_TESTS=104
	37
	38	source $TESTDIR/utils/utils.sh
	39
	40	function kernel_event_generator_toggle_state
	41	{
	42	kernel_event_generator_suspended=$((kernel_event_generator_suspended==0))
	43	}
	44
	45	function generate_filter_events
	46	{
	47	/bin/echo -n "10" > /proc/lttng-test-filter-event 2> /dev/null
	48	}
	49
	50	function generate_syscalls
	51	{
	52	# Pass /dev/null so to generate the syscall right away.
	53	$SYSCALL_TESTAPP_BIN /dev/null
	54	}
	55
	56	function userspace_probe_testapp
	57	{
	58	$USERSPACE_PROBE_ELF_TESTAPP_BIN
	59	}
	60
	61	function kernel_event_generator
	62	{
	63	command_to_run=$1
	64	state_file=$2
	65	kernel_event_generator_suspended=0
	66	trap kernel_event_generator_toggle_state SIGUSR1
	67
	68	while (true); do
	69	if [[ $kernel_event_generator_suspended -eq "1" ]]; then
	70	touch $state_file
	71	sleep 0.5
	72	else
	73	if [[ -f $state_file ]]; then
	74	rm $state_file 2> /dev/null
	75	fi
	76	$command_to_run
	77	fi
	78	done
	79	}
	80
	81	function test_kernel_syscall_notification
	82	{
	83	kernel_event_generator generate_syscalls $TESTAPP_STATE_PATH &
	84	APP_PID=$!
	85
	86	$CURDIR/notification 5 LTTNG_DOMAIN_KERNEL $APP_PID $TESTAPP_STATE_PATH
	87
	88	kill -9 $APP_PID
	89	wait $APP_PID 2> /dev/null
	90	}
	91
	92	if [ "$(id -u)" == "0" ]; then
	93	consumerd_pipe=()
	94
	95	validate_lttng_modules_present
	96
	97	# This is needed since the testpoint create a pipe with the consumer
	98	# type suffixed.
	99	for f in "$TESTPOINT_BASE_PATH"*; do
	100	consumerd_pipe+=("$f")
	101	done
	102
	103	modprobe lttng-test
	104
	105	LTTNG_SESSIOND_ENV_VARS="LTTNG_TESTPOINT_ENABLE=1 \
	106	CONSUMER_PAUSE_PIPE_PATH=${TESTPOINT_PIPE_PATH} \
	107	LD_PRELOAD=${TESTPOINT}"
	108
	109	start_lttng_sessiond_notap
	110
	111	test_kernel_syscall_notification
	112
	113	stop_lttng_sessiond_notap
	114	rmmod lttng-test
	115
	116	rm -rf ${consumerd_pipe[@]} 2> /dev/null
	117	else
	118	# Kernel tests are skipped.
	119	plan_tests $NUM_TESTS
	120	skip 0 "Root access is needed. Skipping all kernel notification tests." $NUM_TESTS
	121	fi
	122
	123	# Just in case cleanup
	124	rm -rf $TRACE_PATH
	125	rm -rf $TMPDIR