File: TestGdbRemoteAttachWait.py

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import os
from time import sleep

import gdbremote_testcase
import lldbgdbserverutils
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil


class TestGdbRemoteAttachWait(gdbremote_testcase.GdbRemoteTestCaseBase):

    mydir = TestBase.compute_mydir(__file__)

    def test_attach_with_vAttachWait(self):
        exe = '%s_%d' % (self.testMethodName, os.getpid())

        def launch_inferior():
            inferior = self.launch_process_for_attach(
                inferior_args=["sleep:60"],
                exe_path=self.getBuildArtifact(exe))
            self.assertIsNotNone(inferior)
            self.assertTrue(inferior.pid > 0)
            self.assertTrue(
                lldbgdbserverutils.process_is_running(
                    inferior.pid, True))
            return inferior

        self.build(dictionary={'EXE': exe})
        self.set_inferior_startup_attach_manually()

        server = self.connect_to_debug_monitor()
        self.assertIsNotNone(server)

        # Launch the first inferior (we shouldn't attach to this one).
        launch_inferior()
        
        self.do_handshake()
        self.test_sequence.add_log_lines([
            # Do the attach.
            "read packet: $vAttachWait;{}#00".format(lldbgdbserverutils.gdbremote_hex_encode_string(exe)),
        ], True)
        # Run the stream until attachWait.
        context = self.expect_gdbremote_sequence()
        self.assertIsNotNone(context)

        # Sleep so we're sure that the inferior is launched after we ask for the attach.
        sleep(1)

        # Launch the second inferior (we SHOULD attach to this one).
        inferior_to_attach = launch_inferior()

        # Make sure the attach succeeded.
        self.test_sequence.add_log_lines([
            {"direction": "send",
             "regex": r"^\$T([0-9a-fA-F]{2})[^#]*#[0-9a-fA-F]{2}$",
             "capture": {1: "stop_signal_hex"}},
        ], True)
        self.add_process_info_collection_packets()


        # Run the stream sending the response..
        context = self.expect_gdbremote_sequence()
        self.assertIsNotNone(context)

        # Gather process info response.
        process_info = self.parse_process_info_response(context)
        self.assertIsNotNone(process_info)

        # Ensure the process id matches what we expected.
        pid_text = process_info.get('pid', None)
        self.assertIsNotNone(pid_text)
        reported_pid = int(pid_text, base=16)
        self.assertEqual(reported_pid, inferior_to_attach.pid)