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|
#!/usr/bin/env python3
#
# SPDX-FileCopyrightText: 2024 Kienan Stewart <kstewart@efficios.com>
# SPDX-License-Identifier: GPL-2.0-only
#
import copy
import pathlib
import sys
import os
import subprocess
from typing import Any, Callable, Type
# Import in-tree test utils
test_utils_import_path = pathlib.Path(__file__).absolute().parents[3] / "utils"
sys.path.append(str(test_utils_import_path))
import lttngtest
import bt2
# Determine if LTTNG_UST_ALLOCATE_COMPOUND_LITERAL_ON_HEAP is set. This will
# affect if certain events may or may not be expected when compiling with
# C++.
# @see https://github.com/lttng/lttng-ust/blob/47fa3e4ed7ab43e034dc61fc1480f919f4ee51d0/include/lttng/ust-compiler.h#L51
#
compound_literal_on_heap = False
process = subprocess.Popen(
[
os.path.join(
str(test_utils_import_path),
"testapp",
"gen-ust-events-constructor",
"uses_heap",
)
]
)
process.wait()
if process.returncode == 0:
compound_literal_on_heap = True
expected_events_common_cpp = [
{
"name": "tp:constructor_cplusplus",
"msg": "global - across units before define",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_cplusplus",
"msg": "global - same unit before define",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_cplusplus",
"msg": "global - same unit after define",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_cplusplus",
"msg": "global - across units after define",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_cplusplus",
"msg": "global - same unit before provider",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_cplusplus",
"msg": "global - same unit after provider",
"count": 0,
},
{
"name": "tp:constructor_cplusplus",
"msg": "global - across units after provider",
"count": 0,
},
{"name": "tp:constructor_cplusplus", "msg": "main() local", "count": 0},
{"name": "tp:destructor_cplusplus", "msg": "main() local", "count": 0},
{
"name": "tp:destructor_cplusplus",
"msg": "global - across units after provider",
"count": 0,
},
{
"name": "tp:destructor_cplusplus",
"msg": "global - same unit after provider",
"count": 0,
},
{
"name": "tp:destructor_cplusplus",
"msg": "global - same unit before provider",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_cplusplus",
"msg": "global - across units after define",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_cplusplus",
"msg": "global - same unit after define",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_cplusplus",
"msg": "global - same unit before define",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_cplusplus",
"msg": "global - across units before define",
"count": 0,
"may_fail": compound_literal_on_heap,
},
]
expected_events_common = [
{
"name": "tp:constructor_c_across_units_before_define",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_c_same_unit_before_define",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_c_same_unit_after_define",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_c_across_units_after_define",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_c_same_unit_before_provider",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:constructor_c_same_unit_after_provider",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{"name": "tp:constructor_c_across_units_after_provider", "msg": None, "count": 0},
{"name": "tp:main", "msg": None, "count": 0},
{
"name": "tp:destructor_c_across_units_after_provider",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_c_same_unit_after_provider",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_c_same_unit_before_provider",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_c_across_units_after_define",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_c_same_unit_after_define",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_c_same_unit_before_define",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp:destructor_c_across_units_before_define",
"msg": None,
"count": 0,
"may_fail": compound_literal_on_heap,
},
]
expected_events_tp_so_cpp = [
{
"name": "tp_so:constructor_cplusplus_provider_shared_library",
"msg": "global - shared library define and provider",
"count": 0,
},
{
"name": "tp_so:constructor_cplusplus_provider_shared_library",
"msg": "main() local - shared library define and provider",
"count": 0,
},
{
"name": "tp_so:destructor_cplusplus_provider_shared_library",
"msg": "main() local - shared library define and provider",
"count": 0,
},
{
"name": "tp_so:destructor_cplusplus_provider_shared_library",
"msg": "global - shared library define and provider",
"count": 0,
},
]
expected_events_tp_so = [
{"name": "tp_so_c:constructor_c_provider_shared_library", "msg": None, "count": 0},
{"name": "tp_so_c:destructor_c_provider_shared_library", "msg": None, "count": 0},
]
expected_events_tp_a_cpp = [
{
"name": "tp_a:constructor_cplusplus_provider_static_archive",
"msg": "global - static archive define and provider",
"count": 0,
"may_fail": compound_literal_on_heap,
},
{
"name": "tp_a:constructor_cplusplus_provider_static_archive",
"msg": "main() local - static archive define and provider",
"count": 0,
},
{
"name": "tp_a:destructor_cplusplus_provider_static_archive",
"msg": "main() local - static archive define and provider",
"count": 0,
},
{
"name": "tp_a:destructor_cplusplus_provider_static_archive",
"msg": "global - static archive define and provider",
"count": 0,
"may_fail": compound_literal_on_heap,
},
]
expected_events_tp_a = [
{"name": "tp_a_c:constructor_c_provider_static_archive", "msg": None, "count": 0},
{"name": "tp_a_c:destructor_c_provider_static_archive", "msg": None, "count": 0},
]
def capture_trace(tap, test_env, application, description):
# type: (lttngtest.TapGenerator, lttngtest._Environment) -> lttngtest.LocalSessionOutputLocation
tap.diagnostic(description)
session_output_location = lttngtest.LocalSessionOutputLocation(
test_env.create_temporary_directory("trace")
)
client = lttngtest.LTTngClient(test_env, log=tap.diagnostic)
with tap.case("Create a session") as test_case:
session = client.create_session(output=session_output_location)
tap.diagnostic("Created session `{session_name}`".format(session_name=session.name))
with tap.case(
"Add a channel to session `{session_name}`".format(session_name=session.name)
) as test_case:
channel = session.add_channel(lttngtest.TracingDomain.User)
tap.diagnostic("Created channel `{channel_name}`".format(channel_name=channel.name))
# Enable all user space events, the default for a user tracepoint event rule.
channel.add_recording_rule(lttngtest.UserTracepointEventRule("tp*"))
with tap.case(
"Start session `{session_name}`".format(session_name=session.name)
) as test_case:
session.start()
test_app = test_env.launch_test_application(application)
with tap.case(
"Run test app '{}'".format(application, session_name=session.name)
) as test_case:
test_app.wait_for_exit()
with tap.case(
"Stop session `{session_name}`".format(session_name=session.name)
) as test_case:
session.stop()
with tap.case(
"Destroy session `{session_name}`".format(session_name=session.name)
) as test_case:
session.destroy()
return session_output_location
def validate_trace(trace_location, tap, expected_events):
# type: (pathlib.Path, lttngtest.TapGenerator)
unknown_event_count = 0
for msg in bt2.TraceCollectionMessageIterator(str(trace_location)):
if type(msg) is not bt2._EventMessageConst:
continue
found = False
for event in expected_events:
if event["name"] == msg.event.name and event["msg"] is None:
found = True
event["count"] = event["count"] + 1
break
elif (
event["name"] == msg.event.name
and event["msg"] is not None
and event["msg"] == msg.event["msg"]
):
found = True
event["count"] = event["count"] + 1
break
if found == False:
unknown_event_count = unknown_event_count + 1
printmsg = None
if "msg" in msg.event:
printmsg = msg.event["msg"]
tap.diagnostic(
'Unexpected event name="{}" msg="{}" encountered'.format(
msg.event.name, str(printmsg)
)
)
for event in expected_events:
may_fail = "may_fail" in event.keys() and event["may_fail"]
if not may_fail:
tap.test(
event["count"] == 1,
'Found expected event name="{}" msg="{}"'.format(
event["name"], str(event["msg"])
),
)
else:
tap.skip("Event '{}' may or may not be recorded".format(event["name"]))
tap.test(unknown_event_count == 0, "Found no unexpected events")
|
