From: Francis Deslauriers Date: Thu, 13 Feb 2020 18:41:17 +0000 (-0500) Subject: Tests: triggers: Add userspace-probe event rule condition kernel tests X-Git-Tag: v2.13.0-rc1~284 X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=45294d8ae0bc7258ac612bd8b4fba18bd7c4bf55;p=lttng-tools.git Tests: triggers: Add userspace-probe event rule condition kernel tests Signed-off-by: Francis Deslauriers Signed-off-by: Jérémie Galarneau Change-Id: I4b948e67bc71c4cfe898927ca045f7a48ddda39a Depends-on: lttng-ust: I5a800fc92e588c2a6a0e26282b0ad5f31c044479 --- diff --git a/tests/regression/Makefile.am b/tests/regression/Makefile.am index cc645fd74..af2b793f1 100644 --- a/tests/regression/Makefile.am +++ b/tests/regression/Makefile.am @@ -34,6 +34,7 @@ TESTS = tools/filtering/test_invalid_filter \ tools/notification/test_notification_kernel_buffer_usage \ tools/notification/test_notification_kernel_instrumentation \ tools/notification/test_notification_kernel_syscall \ + tools/notification/test_notification_kernel_userspace_probe \ tools/notification/test_notification_multi_app \ tools/rotation/test_ust \ tools/rotation/test_kernel \ diff --git a/tests/regression/tools/notification/Makefile.am b/tests/regression/tools/notification/Makefile.am index 469d667f7..bdc1472b5 100644 --- a/tests/regression/tools/notification/Makefile.am +++ b/tests/regression/tools/notification/Makefile.am @@ -10,7 +10,7 @@ noinst_PROGRAMS = base_client notification rotation if NO_SHARED CLEANFILES = libpause_consumer.so libpause_consumer.so.debug -EXTRA_DIST = test_notification_ust_error test_notification_ust_buffer_usage test_notification_ust_event_rule_condition_exclusion test_notification_kernel_error test_notification_kernel_buffer_usage test_notification_kernel_instrumentation test_notification_kernel_syscall test_notification_multi_app base_client.c notification.c consumer_testpoints.c util_event_generator.sh +EXTRA_DIST = test_notification_ust_error test_notification_ust_buffer_usage test_notification_ust_event_rule_condition_exclusion test_notification_kernel_error test_notification_kernel_buffer_usage test_notification_kernel_instrumentation test_notification_kernel_syscall test_notification_kernel_userspace_probe test_notification_multi_app base_client.c notification.c consumer_testpoints.c util_event_generator.sh else @@ -37,8 +37,8 @@ notification_LDADD = $(LIB_LTTNG_CTL) $(LIBTAP) -lm rotation_SOURCES = rotation.c rotation_LDADD = $(LIB_LTTNG_CTL) $(LIBTAP) -lm -noinst_SCRIPTS = test_notification_ust_error test_notification_ust_buffer_usage test_notification_ust_event_rule_condition_exclusion test_notification_kernel_error test_notification_kernel_buffer_usage test_notification_kernel_instrumentation test_notification_kernel_syscall test_notification_multi_app test_rotation util_event_generator.sh -EXTRA_DIST = test_notification_ust_error test_notification_ust_buffer_usage test_notification_ust_event_rule_condition_exclusion test_notification_kernel_error test_notification_kernel_buffer_usage test_notification_kernel_instrumentation test_notification_kernel_syscall test_notification_multi_app test_rotation util_event_generator.sh +noinst_SCRIPTS = test_notification_ust_error test_notification_ust_buffer_usage test_notification_ust_event_rule_condition_exclusion test_notification_kernel_error test_notification_kernel_buffer_usage test_notification_kernel_instrumentation test_notification_kernel_syscall test_notification_kernel_userspace_probe test_notification_multi_app test_rotation util_event_generator.sh +EXTRA_DIST = test_notification_ust_error test_notification_ust_buffer_usage test_notification_ust_event_rule_condition_exclusion test_notification_kernel_error test_notification_kernel_buffer_usage test_notification_kernel_instrumentation test_notification_kernel_syscall test_notification_kernel_userspace_probe test_notification_multi_app test_rotation util_event_generator.sh all-local: @if [ x"$(srcdir)" != x"$(builddir)" ]; then \ diff --git a/tests/regression/tools/notification/notification.c b/tests/regression/tools/notification/notification.c index 26c8366c4..8fa0d3d37 100644 --- a/tests/regression/tools/notification/notification.c +++ b/tests/regression/tools/notification/notification.c @@ -35,12 +35,14 @@ #include #include #include +#include #include #include #include #include #include #include +#include #include @@ -1305,6 +1307,110 @@ end: 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) { @@ -1388,8 +1494,6 @@ end: 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; @@ -1441,6 +1545,7 @@ int main(int argc, const char *argv[]) } case 2: { + const char *session_name, *channel_name; /* Test cases that need a tracing session enabled. */ plan_tests(99); @@ -1527,6 +1632,30 @@ int main(int argc, const char *argv[]) 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(); } diff --git a/tests/regression/tools/notification/test_notification_kernel_userspace_probe b/tests/regression/tools/notification/test_notification_kernel_userspace_probe new file mode 100755 index 000000000..fba14062f --- /dev/null +++ b/tests/regression/tools/notification/test_notification_kernel_userspace_probe @@ -0,0 +1,49 @@ +#!/bin/bash +# +# Copyright (C) 2017 Jonathan Rajotte-Julien +# +# 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"