aeeb9a3c09
This PR changes how we treat the launch sequence in lldb-dap. - Send the initialized event after we finish handling the initialize request, rather than after we finish attaching or launching. - Delay handling the launch and attach request until we have handled the configurationDone request. The latter is now largely a NO-OP and only exists to signal lldb-dap that it can handle the launch and attach requests. - Delay handling the initial threads requests until we have handled the launch or attach request. - Make all attaching and launching synchronous, including when we have attach or launch commands. This removes the need to synchronize between the request and event thread. Background: https://discourse.llvm.org/t/reliability-of-the-lldb-dap-tests/86125
614 lines
23 KiB
Python
614 lines
23 KiB
Python
import os
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import time
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import uuid
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import dap_server
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbplatformutil
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import lldbgdbserverutils
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class DAPTestCaseBase(TestBase):
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# set timeout based on whether ASAN was enabled or not. Increase
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# timeout by a factor of 10 if ASAN is enabled.
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timeoutval = 10 * (10 if ("ASAN_OPTIONS" in os.environ) else 1)
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NO_DEBUG_INFO_TESTCASE = True
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def create_debug_adapter(self, lldbDAPEnv=None, connection=None):
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"""Create the Visual Studio Code debug adapter"""
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self.assertTrue(
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is_exe(self.lldbDAPExec), "lldb-dap must exist and be executable"
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)
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log_file_path = self.getBuildArtifact("dap.txt")
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self.dap_server = dap_server.DebugAdapterServer(
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executable=self.lldbDAPExec,
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connection=connection,
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init_commands=self.setUpCommands(),
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log_file=log_file_path,
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env=lldbDAPEnv,
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)
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def build_and_create_debug_adapter(self, lldbDAPEnv=None, dictionary=None):
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self.build(dictionary=dictionary)
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self.create_debug_adapter(lldbDAPEnv)
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def build_and_create_debug_adapter_for_attach(self):
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"""Variant of build_and_create_debug_adapter that builds a uniquely
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named binary."""
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unique_name = str(uuid.uuid4())
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self.build_and_create_debug_adapter(dictionary={"EXE": unique_name})
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return self.getBuildArtifact(unique_name)
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def set_source_breakpoints(self, source_path, lines, data=None):
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"""Sets source breakpoints and returns an array of strings containing
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the breakpoint IDs ("1", "2") for each breakpoint that was set.
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Parameter data is array of data objects for breakpoints.
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Each object in data is 1:1 mapping with the entry in lines.
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It contains optional location/hitCondition/logMessage parameters.
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"""
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response = self.dap_server.request_setBreakpoints(source_path, lines, data)
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if response is None:
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return []
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breakpoints = response["body"]["breakpoints"]
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breakpoint_ids = []
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for breakpoint in breakpoints:
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breakpoint_ids.append("%i" % (breakpoint["id"]))
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return breakpoint_ids
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def set_function_breakpoints(self, functions, condition=None, hitCondition=None):
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"""Sets breakpoints by function name given an array of function names
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and returns an array of strings containing the breakpoint IDs
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("1", "2") for each breakpoint that was set.
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"""
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response = self.dap_server.request_setFunctionBreakpoints(
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functions, condition=condition, hitCondition=hitCondition
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)
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if response is None:
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return []
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breakpoints = response["body"]["breakpoints"]
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breakpoint_ids = []
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for breakpoint in breakpoints:
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breakpoint_ids.append("%i" % (breakpoint["id"]))
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return breakpoint_ids
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def waitUntil(self, condition_callback):
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for _ in range(20):
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if condition_callback():
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return True
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time.sleep(0.5)
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return False
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def verify_breakpoint_hit(self, breakpoint_ids):
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"""Wait for the process we are debugging to stop, and verify we hit
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any breakpoint location in the "breakpoint_ids" array.
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"breakpoint_ids" should be a list of breakpoint ID strings
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(["1", "2"]). The return value from self.set_source_breakpoints()
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or self.set_function_breakpoints() can be passed to this function"""
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stopped_events = self.dap_server.wait_for_stopped()
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for stopped_event in stopped_events:
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if "body" in stopped_event:
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body = stopped_event["body"]
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if "reason" not in body:
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continue
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if (
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body["reason"] != "breakpoint"
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and body["reason"] != "instruction breakpoint"
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):
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continue
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if "description" not in body:
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continue
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# Descriptions for breakpoints will be in the form
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# "breakpoint 1.1", so look for any description that matches
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# ("breakpoint 1.") in the description field as verification
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# that one of the breakpoint locations was hit. DAP doesn't
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# allow breakpoints to have multiple locations, but LLDB does.
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# So when looking at the description we just want to make sure
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# the right breakpoint matches and not worry about the actual
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# location.
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description = body["description"]
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for breakpoint_id in breakpoint_ids:
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match_desc = "breakpoint %s." % (breakpoint_id)
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if match_desc in description:
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return
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self.assertTrue(False, "breakpoint not hit")
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def verify_stop_exception_info(self, expected_description, timeout=timeoutval):
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"""Wait for the process we are debugging to stop, and verify the stop
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reason is 'exception' and that the description matches
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'expected_description'
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"""
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stopped_events = self.dap_server.wait_for_stopped(timeout=timeout)
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for stopped_event in stopped_events:
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print("stopped_event", stopped_event)
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if "body" in stopped_event:
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body = stopped_event["body"]
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if "reason" not in body:
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continue
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if body["reason"] != "exception":
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continue
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if "description" not in body:
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continue
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description = body["description"]
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if expected_description == description:
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return True
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return False
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def verify_commands(self, flavor, output, commands):
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self.assertTrue(output and len(output) > 0, "expect console output")
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lines = output.splitlines()
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prefix = "(lldb) "
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for cmd in commands:
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found = False
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for line in lines:
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if len(cmd) > 0 and (cmd[0] == "!" or cmd[0] == "?"):
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cmd = cmd[1:]
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if line.startswith(prefix) and cmd in line:
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found = True
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break
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self.assertTrue(
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found, "verify '%s' found in console output for '%s'" % (cmd, flavor)
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)
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def get_dict_value(self, d, key_path):
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"""Verify each key in the key_path array is in contained in each
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dictionary within "d". Assert if any key isn't in the
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corresponding dictionary. This is handy for grabbing values from VS
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Code response dictionary like getting
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response['body']['stackFrames']
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"""
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value = d
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for key in key_path:
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if key in value:
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value = value[key]
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else:
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self.assertTrue(
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key in value,
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'key "%s" from key_path "%s" not in "%s"' % (key, key_path, d),
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)
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return value
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def get_stackFrames_and_totalFramesCount(
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self, threadId=None, startFrame=None, levels=None, format=None, dump=False
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):
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response = self.dap_server.request_stackTrace(
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threadId=threadId,
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startFrame=startFrame,
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levels=levels,
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format=format,
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dump=dump,
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)
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if response:
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stackFrames = self.get_dict_value(response, ["body", "stackFrames"])
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totalFrames = self.get_dict_value(response, ["body", "totalFrames"])
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self.assertTrue(
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totalFrames > 0,
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"verify totalFrames count is provided by extension that supports "
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"async frames loading",
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)
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return (stackFrames, totalFrames)
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return (None, 0)
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def get_stackFrames(
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self, threadId=None, startFrame=None, levels=None, format=None, dump=False
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):
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(stackFrames, totalFrames) = self.get_stackFrames_and_totalFramesCount(
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threadId=threadId,
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startFrame=startFrame,
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levels=levels,
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format=format,
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dump=dump,
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)
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return stackFrames
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def get_exceptionInfo(self, threadId=None):
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response = self.dap_server.request_exceptionInfo(threadId=threadId)
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return self.get_dict_value(response, ["body"])
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def get_source_and_line(self, threadId=None, frameIndex=0):
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stackFrames = self.get_stackFrames(
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threadId=threadId, startFrame=frameIndex, levels=1
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)
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if stackFrames is not None:
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stackFrame = stackFrames[0]
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["source", "path"]
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if "source" in stackFrame:
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source = stackFrame["source"]
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if "path" in source:
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if "line" in stackFrame:
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return (source["path"], stackFrame["line"])
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return ("", 0)
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def get_stdout(self, timeout=0.0):
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return self.dap_server.get_output("stdout", timeout=timeout)
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def get_console(self, timeout=0.0):
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return self.dap_server.get_output("console", timeout=timeout)
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def get_important(self, timeout=0.0):
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return self.dap_server.get_output("important", timeout=timeout)
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def collect_stdout(self, timeout_secs, pattern=None):
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return self.dap_server.collect_output(
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"stdout", timeout_secs=timeout_secs, pattern=pattern
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)
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def collect_console(self, timeout_secs, pattern=None):
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return self.dap_server.collect_output(
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"console", timeout_secs=timeout_secs, pattern=pattern
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)
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def collect_important(self, timeout_secs, pattern=None):
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return self.dap_server.collect_output(
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"important", timeout_secs=timeout_secs, pattern=pattern
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)
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def get_local_as_int(self, name, threadId=None):
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value = self.dap_server.get_local_variable_value(name, threadId=threadId)
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# 'value' may have the variable value and summary.
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# Extract the variable value since summary can have nonnumeric characters.
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value = value.split(" ")[0]
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if value.startswith("0x"):
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return int(value, 16)
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elif value.startswith("0"):
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return int(value, 8)
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else:
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return int(value)
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def set_local(self, name, value, id=None):
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"""Set a top level local variable only."""
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return self.dap_server.request_setVariable(1, name, str(value), id=id)
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def set_global(self, name, value, id=None):
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"""Set a top level global variable only."""
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return self.dap_server.request_setVariable(2, name, str(value), id=id)
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def stepIn(
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self, threadId=None, targetId=None, waitForStop=True, granularity="statement"
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):
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response = self.dap_server.request_stepIn(
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threadId=threadId, targetId=targetId, granularity=granularity
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)
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self.assertTrue(response["success"])
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if waitForStop:
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return self.dap_server.wait_for_stopped()
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return None
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def stepOver(self, threadId=None, waitForStop=True, granularity="statement"):
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self.dap_server.request_next(threadId=threadId, granularity=granularity)
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if waitForStop:
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return self.dap_server.wait_for_stopped()
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return None
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def stepOut(self, threadId=None, waitForStop=True):
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self.dap_server.request_stepOut(threadId=threadId)
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if waitForStop:
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return self.dap_server.wait_for_stopped()
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return None
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def continue_to_next_stop(self):
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self.dap_server.request_continue()
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return self.dap_server.wait_for_stopped()
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def continue_to_breakpoints(self, breakpoint_ids):
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self.dap_server.request_continue()
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self.verify_breakpoint_hit(breakpoint_ids)
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def continue_to_exception_breakpoint(self, filter_label):
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self.dap_server.request_continue()
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self.assertTrue(
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self.verify_stop_exception_info(filter_label),
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'verify we got "%s"' % (filter_label),
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)
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def continue_to_exit(self, exitCode=0):
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self.dap_server.request_continue()
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stopped_events = self.dap_server.wait_for_stopped()
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self.assertEqual(
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len(stopped_events), 1, "stopped_events = {}".format(stopped_events)
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)
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self.assertEqual(
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stopped_events[0]["event"], "exited", "make sure program ran to completion"
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)
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self.assertEqual(
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stopped_events[0]["body"]["exitCode"],
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exitCode,
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"exitCode == %i" % (exitCode),
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)
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def disassemble(self, threadId=None, frameIndex=None):
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stackFrames = self.get_stackFrames(
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threadId=threadId, startFrame=frameIndex, levels=1
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)
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self.assertIsNotNone(stackFrames)
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memoryReference = stackFrames[0]["instructionPointerReference"]
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self.assertIsNotNone(memoryReference)
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if memoryReference not in self.dap_server.disassembled_instructions:
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self.dap_server.request_disassemble(memoryReference=memoryReference)
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return self.dap_server.disassembled_instructions[memoryReference]
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def attach(
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self,
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program=None,
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pid=None,
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waitFor=None,
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trace=None,
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initCommands=None,
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preRunCommands=None,
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stopCommands=None,
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exitCommands=None,
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attachCommands=None,
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coreFile=None,
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stopOnAttach=True,
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disconnectAutomatically=True,
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terminateCommands=None,
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postRunCommands=None,
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sourceMap=None,
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sourceInitFile=False,
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expectFailure=False,
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gdbRemotePort=None,
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gdbRemoteHostname=None,
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sourceBreakpoints=None,
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functionBreakpoints=None,
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):
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"""Build the default Makefile target, create the DAP debug adapter,
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and attach to the process.
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"""
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# Make sure we disconnect and terminate the DAP debug adapter even
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# if we throw an exception during the test case.
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def cleanup():
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if disconnectAutomatically:
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self.dap_server.request_disconnect(terminateDebuggee=True)
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self.dap_server.terminate()
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# Execute the cleanup function during test case tear down.
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self.addTearDownHook(cleanup)
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# Initialize and launch the program
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self.dap_server.request_initialize(sourceInitFile)
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self.dap_server.wait_for_event("initialized")
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# Set source breakpoints as part of the launch sequence.
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if sourceBreakpoints:
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for source_path, lines in sourceBreakpoints:
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response = self.dap_server.request_setBreakpoints(source_path, lines)
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self.assertTrue(
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response["success"],
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"setBreakpoints failed (%s)" % (response),
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)
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# Set function breakpoints as part of the launch sequence.
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if functionBreakpoints:
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response = self.dap_server.request_setFunctionBreakpoints(
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functionBreakpoints
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)
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self.assertTrue(
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response["success"],
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"setFunctionBreakpoint failed (%s)" % (response),
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)
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self.dap_server.request_configurationDone()
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response = self.dap_server.request_attach(
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program=program,
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pid=pid,
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waitFor=waitFor,
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trace=trace,
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initCommands=initCommands,
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preRunCommands=preRunCommands,
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stopCommands=stopCommands,
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exitCommands=exitCommands,
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attachCommands=attachCommands,
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terminateCommands=terminateCommands,
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coreFile=coreFile,
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stopOnAttach=stopOnAttach,
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postRunCommands=postRunCommands,
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sourceMap=sourceMap,
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gdbRemotePort=gdbRemotePort,
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gdbRemoteHostname=gdbRemoteHostname,
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)
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if expectFailure:
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return response
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if not (response and response["success"]):
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self.assertTrue(
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response["success"], "attach failed (%s)" % (response["message"])
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)
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def launch(
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self,
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program=None,
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args=None,
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cwd=None,
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env=None,
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stopOnEntry=False,
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disableASLR=False,
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disableSTDIO=False,
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shellExpandArguments=False,
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trace=False,
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initCommands=None,
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preRunCommands=None,
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stopCommands=None,
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exitCommands=None,
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terminateCommands=None,
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sourcePath=None,
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debuggerRoot=None,
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sourceInitFile=False,
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launchCommands=None,
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sourceMap=None,
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disconnectAutomatically=True,
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runInTerminal=False,
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expectFailure=False,
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postRunCommands=None,
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enableAutoVariableSummaries=False,
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displayExtendedBacktrace=False,
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enableSyntheticChildDebugging=False,
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commandEscapePrefix=None,
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customFrameFormat=None,
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customThreadFormat=None,
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sourceBreakpoints=None,
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functionBreakpoints=None,
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):
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"""Sending launch request to dap"""
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# Make sure we disconnect and terminate the DAP debug adapter,
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# if we throw an exception during the test case
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def cleanup():
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if disconnectAutomatically:
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self.dap_server.request_disconnect(terminateDebuggee=True)
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self.dap_server.terminate()
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# Execute the cleanup function during test case tear down.
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self.addTearDownHook(cleanup)
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# Initialize and launch the program
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self.dap_server.request_initialize(sourceInitFile)
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self.dap_server.wait_for_event("initialized")
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# Set source breakpoints as part of the launch sequence.
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if sourceBreakpoints:
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for source_path, lines in sourceBreakpoints:
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response = self.dap_server.request_setBreakpoints(source_path, lines)
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self.assertTrue(
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response["success"],
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"setBreakpoints failed (%s)" % (response),
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)
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# Set function breakpoints as part of the launch sequence.
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if functionBreakpoints:
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response = self.dap_server.request_setFunctionBreakpoints(
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functionBreakpoints
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)
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self.assertTrue(
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response["success"],
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"setFunctionBreakpoint failed (%s)" % (response),
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)
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self.dap_server.request_configurationDone()
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response = self.dap_server.request_launch(
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program,
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args=args,
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cwd=cwd,
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env=env,
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stopOnEntry=stopOnEntry,
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disableASLR=disableASLR,
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disableSTDIO=disableSTDIO,
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shellExpandArguments=shellExpandArguments,
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trace=trace,
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initCommands=initCommands,
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preRunCommands=preRunCommands,
|
|
stopCommands=stopCommands,
|
|
exitCommands=exitCommands,
|
|
terminateCommands=terminateCommands,
|
|
sourcePath=sourcePath,
|
|
debuggerRoot=debuggerRoot,
|
|
launchCommands=launchCommands,
|
|
sourceMap=sourceMap,
|
|
runInTerminal=runInTerminal,
|
|
postRunCommands=postRunCommands,
|
|
enableAutoVariableSummaries=enableAutoVariableSummaries,
|
|
displayExtendedBacktrace=displayExtendedBacktrace,
|
|
enableSyntheticChildDebugging=enableSyntheticChildDebugging,
|
|
commandEscapePrefix=commandEscapePrefix,
|
|
customFrameFormat=customFrameFormat,
|
|
customThreadFormat=customThreadFormat,
|
|
)
|
|
|
|
if expectFailure:
|
|
return response
|
|
|
|
if not (response and response["success"]):
|
|
self.assertTrue(
|
|
response["success"],
|
|
"launch failed (%s)" % (response["body"]["error"]["format"]),
|
|
)
|
|
return response
|
|
|
|
def build_and_launch(
|
|
self,
|
|
program,
|
|
args=None,
|
|
cwd=None,
|
|
env=None,
|
|
stopOnEntry=False,
|
|
disableASLR=False,
|
|
disableSTDIO=False,
|
|
shellExpandArguments=False,
|
|
trace=False,
|
|
initCommands=None,
|
|
preRunCommands=None,
|
|
stopCommands=None,
|
|
exitCommands=None,
|
|
terminateCommands=None,
|
|
sourcePath=None,
|
|
debuggerRoot=None,
|
|
sourceInitFile=False,
|
|
runInTerminal=False,
|
|
disconnectAutomatically=True,
|
|
postRunCommands=None,
|
|
lldbDAPEnv=None,
|
|
enableAutoVariableSummaries=False,
|
|
displayExtendedBacktrace=False,
|
|
enableSyntheticChildDebugging=False,
|
|
commandEscapePrefix=None,
|
|
customFrameFormat=None,
|
|
customThreadFormat=None,
|
|
launchCommands=None,
|
|
expectFailure=False,
|
|
sourceBreakpoints=None,
|
|
functionBreakpoints=None,
|
|
):
|
|
"""Build the default Makefile target, create the DAP debug adapter,
|
|
and launch the process.
|
|
"""
|
|
self.build_and_create_debug_adapter(lldbDAPEnv)
|
|
self.assertTrue(os.path.exists(program), "executable must exist")
|
|
|
|
return self.launch(
|
|
program,
|
|
args,
|
|
cwd,
|
|
env,
|
|
stopOnEntry,
|
|
disableASLR,
|
|
disableSTDIO,
|
|
shellExpandArguments,
|
|
trace,
|
|
initCommands,
|
|
preRunCommands,
|
|
stopCommands,
|
|
exitCommands,
|
|
terminateCommands,
|
|
sourcePath,
|
|
debuggerRoot,
|
|
sourceInitFile,
|
|
runInTerminal=runInTerminal,
|
|
disconnectAutomatically=disconnectAutomatically,
|
|
postRunCommands=postRunCommands,
|
|
enableAutoVariableSummaries=enableAutoVariableSummaries,
|
|
enableSyntheticChildDebugging=enableSyntheticChildDebugging,
|
|
displayExtendedBacktrace=displayExtendedBacktrace,
|
|
commandEscapePrefix=commandEscapePrefix,
|
|
customFrameFormat=customFrameFormat,
|
|
customThreadFormat=customThreadFormat,
|
|
launchCommands=launchCommands,
|
|
expectFailure=expectFailure,
|
|
sourceBreakpoints=sourceBreakpoints,
|
|
functionBreakpoints=functionBreakpoints,
|
|
)
|
|
|
|
def getBuiltinDebugServerTool(self):
|
|
# Tries to find simulation/lldb-server/gdbserver tool path.
|
|
server_tool = None
|
|
if lldbplatformutil.getPlatform() == "linux":
|
|
server_tool = lldbgdbserverutils.get_lldb_server_exe()
|
|
if server_tool is None:
|
|
self.dap_server.request_disconnect(terminateDebuggee=True)
|
|
self.assertIsNotNone(server_tool, "lldb-server not found.")
|
|
elif lldbplatformutil.getPlatform() == "macosx":
|
|
server_tool = lldbgdbserverutils.get_debugserver_exe()
|
|
if server_tool is None:
|
|
self.dap_server.request_disconnect(terminateDebuggee=True)
|
|
self.assertIsNotNone(server_tool, "debugserver not found.")
|
|
return server_tool
|