2238dcc393
This is an ongoing series of commits that are reformatting our Python code. Reformatting is done with `black` (23.1.0). If you end up having problems merging this commit because you have made changes to a python file, the best way to handle that is to run `git checkout --ours <yourfile>` and then reformat it with black. RFC: https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style Differential revision: https://reviews.llvm.org/D151460
150 lines
5.3 KiB
Python
150 lines
5.3 KiB
Python
import lldb
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test.decorators import *
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from lldbsuite.test.gdbclientutils import *
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from lldbsuite.test.lldbgdbclient import GDBRemoteTestBase
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class TestRecognizeBreakpoint(GDBRemoteTestBase):
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"""This tests the case where the gdb-remote server doesn't support any
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of the thread-info packets, and just tells which thread got the stop
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signal with:
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T05thread:01;
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There was a bug in lldb that we would set the stop reason from this
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packet too early - before we had updated the thread list. So when we
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later updated the thread list, we would throw away this info. Normally
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we would be able to reconstruct it from the thread info, but not if the
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stub doesn't support it"""
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@skipIfXmlSupportMissing
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def test(self):
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class MyResponder(MockGDBServerResponder):
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def __init__(self):
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MockGDBServerResponder.__init__(self)
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self.thread_info_count = 0
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self.after_cont = False
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self.current_thread = 0
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def cont(self):
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# Simulate process stopping due to a breakpoint:
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self.after_cont = True
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return "T05thread:01;"
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def vCont(self, packet):
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self.after_cont = True
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return "T05thread:01;"
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def haltReason(self):
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return "T02thread:01;"
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def threadStopInfo(self, num):
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return ""
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def QThreadSuffixSupported(self):
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return ""
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def QListThreadsInStopReply(self):
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return ""
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def setBreakpoint(self, packet):
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return "OK"
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def qfThreadInfo(self):
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return "m1"
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def qsThreadInfo(self):
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if (self.thread_info_count % 2) == 0:
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str = "m2"
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else:
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str = "l"
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self.thread_info_count += 1
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return str
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def readRegisters(self):
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if self.after_cont and self.current_thread == 1:
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return "c01e990080ffffff"
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else:
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return "badcfe10325476980"
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def readRegister(self, regno):
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return ""
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def qXferRead(self, obj, annex, offset, length):
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if annex == "target.xml":
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return (
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"""<?xml version="1.0"?>
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<target version="1.0">
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<architecture>i386:x86-64</architecture>
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<feature name="org.gnu.gdb.i386.core">
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<reg name="rip" bitsize="64" regnum="0" type="code_ptr" group="general"/>
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</feature>
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</target>""",
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False,
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)
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else:
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return None, False
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def selectThread(self, op, thread):
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if op != "g":
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return ""
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self.current_thread = thread
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return "OK"
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def other(self, packet):
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if packet == "vCont?":
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return "vCont;c;C;s;S"
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return ""
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python_os_plugin_path = os.path.join(
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self.getSourceDir(), "operating_system_2.py"
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)
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command = "settings set target.process.python-os-plugin-path '{}'".format(
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python_os_plugin_path
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)
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self.runCmd(command)
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self.server.responder = MyResponder()
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target = self.dbg.CreateTarget("")
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process = self.connect(target)
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bkpt = target.BreakpointCreateByAddress(0xFFFFFF8000991EC0)
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self.assertEqual(bkpt.GetNumLocations(), 1, "Fake breakpoint was resolved.")
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# Get the initial stop, and we should have two threads.
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num_threads = len(process.threads)
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self.assertEqual(num_threads, 2, "Got two threads")
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thread_0 = process.threads[0]
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self.assertEqual(thread_0.GetStopReason(), 1, "Thread_0 stopped for no reason")
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self.assertEqual(thread_0.GetName(), "one", "Thread_0 is called one")
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thread_1 = process.threads[1]
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self.assertEqual(thread_1.GetStopReason(), 5, "Thread_0 stopped for SIGSTOP")
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self.assertEqual(thread_1.GetName(), "two", "Thread_0 is called two")
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# Now continue and we will fake hitting a breakpoint.
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process.Continue()
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self.assertState(process.GetState(), lldb.eStateStopped, "Process is stopped")
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num_threads = len(process.threads)
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num_threads = len(process.threads)
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self.assertEqual(num_threads, 2, "Got two threads")
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thread_0 = process.threads[0]
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self.assertEqual(thread_0.GetStopReason(), 1, "Thread_0 stopped for no reason")
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self.assertEqual(thread_0.GetName(), "one", "Thread_0 is called one")
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thread_1 = process.threads[1]
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self.assertEqual(thread_1.GetStopReason(), 3, "Thread_0 stopped for SIGTRAP")
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self.assertEqual(thread_1.GetName(), "three", "Thread_0 is called three")
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self.assertTrue(thread_1.IsValid(), "Thread_1 is valid")
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self.assertStopReason(
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thread_1.GetStopReason(),
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lldb.eStopReasonBreakpoint,
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"Stopped at breakpoint",
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)
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