#include <lttng/event-rule/kprobe.h>
#include <lttng/event-rule/syscall.h>
#include <lttng/event-rule/tracepoint.h>
+#include <lttng/event-rule/uprobe.h>
#include <lttng/kernel-probe.h>
#include <lttng/lttng-error.h>
#include <lttng/lttng.h>
#include <lttng/notification/channel.h>
#include <lttng/notification/notification.h>
#include <lttng/trigger/trigger.h>
+#include <lttng/userspace-probe.h>
#include <tap/tap.h>
return;
}
+static void test_uprobe_event_rule_notification(
+ enum lttng_domain_type domain_type,
+ const char *testapp_path,
+ const char *test_symbol_name)
+{
+ int i, ret;
+ const int notification_count = 3;
+ enum lttng_notification_channel_status nc_status;
+ enum lttng_event_rule_status event_rule_status;
+ enum lttng_trigger_status trigger_status;
+ struct lttng_notification_channel *notification_channel = NULL;
+ struct lttng_userspace_probe_location *probe_location = NULL;
+ struct lttng_userspace_probe_location_lookup_method *lookup_method =
+ NULL;
+ struct lttng_condition *condition = NULL;
+ struct lttng_event_rule *event_rule = NULL;
+ struct lttng_action *action = NULL;
+ struct lttng_trigger *trigger = NULL;
+ const char * const trigger_name = "uprobe_trigger";
+
+ action = lttng_action_notify_create();
+ if (!action) {
+ fail("Failed to create notify action");
+ goto end;
+ }
+
+ lookup_method = lttng_userspace_probe_location_lookup_method_function_elf_create();
+ if (!lookup_method) {
+ fail("Setup error on userspace probe lookup method creation");
+ goto end;
+ }
+
+ probe_location = lttng_userspace_probe_location_function_create(
+ testapp_path, test_symbol_name, lookup_method);
+ if (!probe_location) {
+ fail("Failed to create userspace probe location");
+ goto end;
+ }
+
+ notification_channel = lttng_notification_channel_create(
+ lttng_session_daemon_notification_endpoint);
+ ok(notification_channel, "Notification channel object creation");
+
+ event_rule = lttng_event_rule_uprobe_create();
+ ok(event_rule, "kprobe event rule object creation");
+
+ event_rule_status = lttng_event_rule_uprobe_set_location(
+ event_rule, probe_location);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting uprobe event rule location");
+
+ event_rule_status = lttng_event_rule_uprobe_set_name(
+ event_rule, trigger_name);
+ ok(event_rule_status == LTTNG_EVENT_RULE_STATUS_OK,
+ "Setting uprobe event rule name: '%s'", trigger_name);
+
+ condition = lttng_condition_event_rule_create(event_rule);
+ ok(condition, "Condition event rule object creation");
+
+ /* Register the trigger for condition. */
+ trigger = lttng_trigger_create(condition, action);
+ if (!trigger) {
+ fail("Failed to create trigger with userspace probe event rule condition and notify action");
+ goto end;
+ }
+
+ trigger_status = lttng_trigger_set_name(trigger, trigger_name);
+ ok(trigger_status == LTTNG_TRIGGER_STATUS_OK,
+ "Setting name to trigger '%s'", trigger_name);
+
+ ret = lttng_register_trigger(trigger);
+ if (ret) {
+ fail("Failed to register trigger with userspace probe event rule condition and notify action");
+ goto end;
+ }
+
+ nc_status = lttng_notification_channel_subscribe(
+ notification_channel, condition);
+ ok(nc_status == LTTNG_NOTIFICATION_CHANNEL_STATUS_OK,
+ "Subscribe to tracepoint event rule condition");
+
+ resume_application();
+
+ for (i = 0; i < notification_count; i++) {
+ char *name = get_next_notification_trigger_name(
+ notification_channel);
+
+ ok(strcmp(trigger_name, name) == 0,
+ "Received notification for the expected trigger name: '%s' (%d/%d)",
+ trigger_name, i + 1, notification_count);
+ free(name);
+ }
+end:
+ suspend_application();
+
+ lttng_notification_channel_destroy(notification_channel);
+ lttng_unregister_trigger(trigger);
+ lttng_trigger_destroy(trigger);
+ lttng_action_destroy(action);
+ lttng_event_rule_destroy(event_rule);
+ lttng_condition_destroy(condition);
+ return;
+}
+
static void test_syscall_event_rule_notification(
enum lttng_domain_type domain_type)
{
int main(int argc, const char *argv[])
{
int test_scenario;
- const char *session_name = NULL;
- const char *channel_name = NULL;
const char *domain_type_string = NULL;
enum lttng_domain_type domain_type = LTTNG_DOMAIN_NONE;
}
case 2:
{
+ const char *session_name, *channel_name;
/* Test cases that need a tracing session enabled. */
plan_tests(99);
break;
}
+ case 6:
+ {
+ const char *testapp_path, *test_symbol_name;
+
+ plan_tests(10);
+
+ if (argc < 7) {
+ fail("Missing parameter for tests to run %d", argc);
+ goto error;
+ }
+
+ testapp_path = argv[5];
+ test_symbol_name = argv[6];
+ /* Test cases that need the kernel tracer. */
+ assert(domain_type == LTTNG_DOMAIN_KERNEL);
+
+ diag("Test userspace-probe event rule notifications for domain %s",
+ domain_type_string);
+
+ test_uprobe_event_rule_notification(
+ domain_type, testapp_path, test_symbol_name);
+
+ break;
+ }
default:
abort();
}
--- /dev/null
+#!/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=$(mktemp -d)
+
+TESTAPP_STATE_PATH=$(mktemp -u "$TMPDIR/application_state.XXXXXXXXXX")
+
+NUM_TESTS=13
+
+# shellcheck source=../../../utils/utils.sh
+source "$TESTDIR/utils/utils.sh"
+# shellcheck source=./util_event_generator.sh
+source "$CURDIR/util_event_generator.sh"
+
+function test_kernel_userspace_probe_notification
+{
+ kernel_event_generator_run_once_per_transition userspace_probe_testapp "$TESTAPP_STATE_PATH" 10 &
+ APP_PID=$!
+
+ "$CURDIR/notification" 6 LTTNG_DOMAIN_KERNEL \
+ $APP_PID "$TESTAPP_STATE_PATH" \
+ "$USERSPACE_PROBE_ELF_TESTAPP_BIN" "test_function"
+
+ kill -SIGUSR2 $APP_PID
+ wait $APP_PID 2> /dev/null
+}
+
+if [ "$(id -u)" == "0" ]; then
+ validate_lttng_modules_present
+
+ start_lttng_sessiond_notap
+
+ test_kernel_userspace_probe_notification
+
+ stop_lttng_sessiond_notap
+else
+ # Kernel tests are skipped.
+ plan_tests $NUM_TESTS
+ skip 0 "Root access is needed. Skipping all kernel notification tests." $NUM_TESTS
+fi
+
+# Just in case cleanup
+rm -rf "$TMPDIR"
projects / lttng-tools.git / commitdiff
