5d66f9fd8e
Similar to ae316ac66f for
QEMU_(UN)SET_ENV.
The iteration order of StringMap is not guaranteed to be deterministic.
Sort the entries to give deterministic packets for the tests added by
D108018.
643 lines
22 KiB
Python
643 lines
22 KiB
Python
import lldb
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import binascii
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import os.path
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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 TestGDBRemoteClient(GDBRemoteTestBase):
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class gPacketResponder(MockGDBServerResponder):
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registers = [
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"name:rax;bitsize:64;offset:0;encoding:uint;format:hex;set:General Purpose Registers;ehframe:0;dwarf:0;",
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"name:rbx;bitsize:64;offset:8;encoding:uint;format:hex;set:General Purpose Registers;ehframe:3;dwarf:3;",
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"name:rcx;bitsize:64;offset:16;encoding:uint;format:hex;set:General Purpose Registers;ehframe:2;dwarf:2;generic:arg4;",
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"name:rdx;bitsize:64;offset:24;encoding:uint;format:hex;set:General Purpose Registers;ehframe:1;dwarf:1;generic:arg3;",
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"name:rdi;bitsize:64;offset:32;encoding:uint;format:hex;set:General Purpose Registers;ehframe:5;dwarf:5;generic:arg1;",
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"name:rsi;bitsize:64;offset:40;encoding:uint;format:hex;set:General Purpose Registers;ehframe:4;dwarf:4;generic:arg2;",
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"name:rbp;bitsize:64;offset:48;encoding:uint;format:hex;set:General Purpose Registers;ehframe:6;dwarf:6;generic:fp;",
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"name:rsp;bitsize:64;offset:56;encoding:uint;format:hex;set:General Purpose Registers;ehframe:7;dwarf:7;generic:sp;",
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]
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def qRegisterInfo(self, num):
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try:
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return self.registers[num]
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except IndexError:
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return "E45"
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def readRegisters(self):
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return len(self.registers) * 16 * "0"
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def readRegister(self, register):
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return "0000000000000000"
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def test_connect(self):
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"""Test connecting to a remote gdb server"""
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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self.assertPacketLogContains(["qProcessInfo", "qfThreadInfo"])
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def test_attach_fail(self):
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error_msg = "mock-error-msg"
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class MyResponder(MockGDBServerResponder):
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# Pretend we don't have any process during the initial queries.
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def qC(self):
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return "E42"
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def qfThreadInfo(self):
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return "OK" # No threads.
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# Then, when we are asked to attach, error out.
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def vAttach(self, pid):
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return "E42;" + binascii.hexlify(error_msg.encode()).decode()
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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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lldbutil.expect_state_changes(
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self, self.dbg.GetListener(), process, [lldb.eStateConnected]
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)
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error = lldb.SBError()
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target.AttachToProcessWithID(lldb.SBListener(), 47, error)
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self.assertEquals(error_msg, error.GetCString())
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def test_launch_fail(self):
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class MyResponder(MockGDBServerResponder):
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# Pretend we don't have any process during the initial queries.
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def qC(self):
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return "E42"
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def qfThreadInfo(self):
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return "OK" # No threads.
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# Then, when we are asked to attach, error out.
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def A(self, packet):
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return "E47"
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self.server.responder = MyResponder()
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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lldbutil.expect_state_changes(
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self, self.dbg.GetListener(), process, [lldb.eStateConnected]
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)
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error = lldb.SBError()
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target.Launch(
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lldb.SBListener(), None, None, None, None, None, None, 0, True, error
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)
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self.assertRegex(error.GetCString(), "Cannot launch '.*a': Error 71")
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def test_launch_rich_error(self):
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class MyResponder(MockGDBServerResponder):
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def qC(self):
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return "E42"
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def qfThreadInfo(self):
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return "OK" # No threads.
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# Then, when we are asked to attach, error out.
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def vRun(self, packet):
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return "Eff;" + seven.hexlify("I'm a teapot")
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self.server.responder = MyResponder()
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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lldbutil.expect_state_changes(
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self, self.dbg.GetListener(), process, [lldb.eStateConnected]
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)
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error = lldb.SBError()
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target.Launch(
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lldb.SBListener(), None, None, None, None, None, None, 0, True, error
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)
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self.assertRegex(error.GetCString(), "Cannot launch '.*a': I'm a teapot")
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def test_read_registers_using_g_packets(self):
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"""Test reading registers using 'g' packets (default behavior)"""
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self.dbg.HandleCommand(
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"settings set plugin.process.gdb-remote.use-g-packet-for-reading true"
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)
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self.addTearDownHook(
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lambda: self.runCmd(
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"settings set plugin.process.gdb-remote.use-g-packet-for-reading false"
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)
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)
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self.server.responder = self.gPacketResponder()
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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self.assertEquals(1, self.server.responder.packetLog.count("g"))
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self.server.responder.packetLog = []
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self.read_registers(process)
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# Reading registers should not cause any 'p' packets to be exchanged.
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self.assertEquals(
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0, len([p for p in self.server.responder.packetLog if p.startswith("p")])
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)
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def test_read_registers_using_p_packets(self):
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"""Test reading registers using 'p' packets"""
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self.dbg.HandleCommand(
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"settings set plugin.process.gdb-remote.use-g-packet-for-reading false"
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)
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self.server.responder = self.gPacketResponder()
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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self.read_registers(process)
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self.assertNotIn("g", self.server.responder.packetLog)
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self.assertGreater(
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len([p for p in self.server.responder.packetLog if p.startswith("p")]), 0
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)
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def test_write_registers_using_P_packets(self):
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"""Test writing registers using 'P' packets (default behavior)"""
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self.server.responder = self.gPacketResponder()
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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self.write_registers(process)
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self.assertEquals(
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0, len([p for p in self.server.responder.packetLog if p.startswith("G")])
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)
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self.assertGreater(
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len([p for p in self.server.responder.packetLog if p.startswith("P")]), 0
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)
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def test_write_registers_using_G_packets(self):
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"""Test writing registers using 'G' packets"""
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class MyResponder(self.gPacketResponder):
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def readRegister(self, register):
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# empty string means unsupported
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return ""
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self.server.responder = MyResponder()
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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self.write_registers(process)
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self.assertEquals(
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0, len([p for p in self.server.responder.packetLog if p.startswith("P")])
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)
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self.assertGreater(
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len([p for p in self.server.responder.packetLog if p.startswith("G")]), 0
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)
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def read_registers(self, process):
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self.for_each_gpr(
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process, lambda r: self.assertEquals("0x0000000000000000", r.GetValue())
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)
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def write_registers(self, process):
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self.for_each_gpr(
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process, lambda r: r.SetValueFromCString("0x0000000000000000")
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)
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def for_each_gpr(self, process, operation):
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registers = process.GetThreadAtIndex(0).GetFrameAtIndex(0).GetRegisters()
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self.assertGreater(registers.GetSize(), 0)
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regSet = registers[0]
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numChildren = regSet.GetNumChildren()
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self.assertGreater(numChildren, 0)
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for i in range(numChildren):
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operation(regSet.GetChildAtIndex(i))
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def test_launch_A(self):
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class MyResponder(MockGDBServerResponder):
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def __init__(self, *args, **kwargs):
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self.started = False
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return super().__init__(*args, **kwargs)
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def qC(self):
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if self.started:
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return "QCp10.10"
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else:
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return "E42"
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def qfThreadInfo(self):
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if self.started:
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return "mp10.10"
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else:
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return "E42"
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def qsThreadInfo(self):
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return "l"
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def A(self, packet):
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self.started = True
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return "OK"
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def qLaunchSuccess(self):
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if self.started:
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return "OK"
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return "E42"
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self.server.responder = MyResponder()
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target = self.createTarget("a.yaml")
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# NB: apparently GDB packets are using "/" on Windows too
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exe_path = self.getBuildArtifact("a").replace(os.path.sep, "/")
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exe_hex = binascii.b2a_hex(exe_path.encode()).decode()
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process = self.connect(target)
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lldbutil.expect_state_changes(
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self, self.dbg.GetListener(), process, [lldb.eStateConnected]
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)
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target.Launch(
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lldb.SBListener(),
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["arg1", "arg2", "arg3"], # argv
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[], # envp
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None, # stdin_path
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None, # stdout_path
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None, # stderr_path
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None, # working_directory
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0, # launch_flags
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True, # stop_at_entry
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lldb.SBError(),
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) # error
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self.assertTrue(process, PROCESS_IS_VALID)
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self.assertEqual(process.GetProcessID(), 16)
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self.assertPacketLogContains(
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[
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"A%d,0,%s,8,1,61726731,8,2,61726732,8,3,61726733"
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% (len(exe_hex), exe_hex),
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]
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)
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def test_launch_vRun(self):
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class MyResponder(MockGDBServerResponder):
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def __init__(self, *args, **kwargs):
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self.started = False
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return super().__init__(*args, **kwargs)
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def qC(self):
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if self.started:
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return "QCp10.10"
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else:
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return "E42"
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def qfThreadInfo(self):
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if self.started:
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return "mp10.10"
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else:
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return "E42"
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def qsThreadInfo(self):
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return "l"
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def vRun(self, packet):
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self.started = True
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return "T13"
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def A(self, packet):
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return "E28"
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self.server.responder = MyResponder()
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target = self.createTarget("a.yaml")
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# NB: apparently GDB packets are using "/" on Windows too
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exe_path = self.getBuildArtifact("a").replace(os.path.sep, "/")
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exe_hex = binascii.b2a_hex(exe_path.encode()).decode()
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process = self.connect(target)
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lldbutil.expect_state_changes(
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self, self.dbg.GetListener(), process, [lldb.eStateConnected]
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)
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process = target.Launch(
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lldb.SBListener(),
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["arg1", "arg2", "arg3"], # argv
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[], # envp
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None, # stdin_path
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None, # stdout_path
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None, # stderr_path
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None, # working_directory
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0, # launch_flags
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True, # stop_at_entry
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lldb.SBError(),
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) # error
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self.assertTrue(process, PROCESS_IS_VALID)
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self.assertEqual(process.GetProcessID(), 16)
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self.assertPacketLogContains(
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["vRun;%s;61726731;61726732;61726733" % (exe_hex,)]
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)
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def test_launch_QEnvironment(self):
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class MyResponder(MockGDBServerResponder):
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def qC(self):
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return "E42"
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def qfThreadInfo(self):
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return "E42"
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def vRun(self, packet):
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self.started = True
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return "E28"
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self.server.responder = MyResponder()
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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lldbutil.expect_state_changes(
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self, self.dbg.GetListener(), process, [lldb.eStateConnected]
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)
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target.Launch(
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lldb.SBListener(),
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[], # argv
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[
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"PLAIN=foo",
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"NEEDSENC=frob$",
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"NEEDSENC2=fr*ob",
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"NEEDSENC3=fro}b",
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"NEEDSENC4=f#rob",
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"EQUALS=foo=bar",
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], # envp
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None, # stdin_path
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None, # stdout_path
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None, # stderr_path
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None, # working_directory
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0, # launch_flags
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True, # stop_at_entry
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lldb.SBError(),
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) # error
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self.assertPacketLogContains(
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[
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"QEnvironment:EQUALS=foo=bar",
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"QEnvironmentHexEncoded:4e45454453454e433d66726f6224",
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"QEnvironmentHexEncoded:4e45454453454e43323d66722a6f62",
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"QEnvironmentHexEncoded:4e45454453454e43333d66726f7d62",
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"QEnvironmentHexEncoded:4e45454453454e43343d6623726f62",
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"QEnvironment:PLAIN=foo",
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]
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)
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def test_launch_QEnvironmentHexEncoded_only(self):
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class MyResponder(MockGDBServerResponder):
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def qC(self):
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return "E42"
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def qfThreadInfo(self):
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return "E42"
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def vRun(self, packet):
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self.started = True
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return "E28"
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def QEnvironment(self, packet):
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return ""
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self.server.responder = MyResponder()
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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lldbutil.expect_state_changes(
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self, self.dbg.GetListener(), process, [lldb.eStateConnected]
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)
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target.Launch(
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lldb.SBListener(),
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[], # argv
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[
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"PLAIN=foo",
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"NEEDSENC=frob$",
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"NEEDSENC2=fr*ob",
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"NEEDSENC3=fro}b",
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"NEEDSENC4=f#rob",
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"EQUALS=foo=bar",
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], # envp
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None, # stdin_path
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None, # stdout_path
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None, # stderr_path
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None, # working_directory
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0, # launch_flags
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True, # stop_at_entry
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lldb.SBError(),
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) # error
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self.assertPacketLogContains(
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[
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"QEnvironmentHexEncoded:455155414c533d666f6f3d626172",
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"QEnvironmentHexEncoded:4e45454453454e433d66726f6224",
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"QEnvironmentHexEncoded:4e45454453454e43323d66722a6f62",
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"QEnvironmentHexEncoded:4e45454453454e43333d66726f7d62",
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"QEnvironmentHexEncoded:4e45454453454e43343d6623726f62",
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"QEnvironmentHexEncoded:504c41494e3d666f6f",
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]
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)
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def test_detach_no_multiprocess(self):
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class MyResponder(MockGDBServerResponder):
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def __init__(self):
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super().__init__()
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self.detached = None
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def qfThreadInfo(self):
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return "10200"
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def D(self, packet):
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self.detached = packet
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return "OK"
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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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process.Detach()
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self.assertEqual(self.server.responder.detached, "D")
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def test_detach_pid(self):
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class MyResponder(MockGDBServerResponder):
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def __init__(self, test_case):
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super().__init__()
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self.test_case = test_case
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self.detached = None
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def qSupported(self, client_supported):
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self.test_case.assertIn("multiprocess+", client_supported)
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return "multiprocess+;" + super().qSupported(client_supported)
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def qfThreadInfo(self):
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return "mp400.10200"
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def D(self, packet):
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self.detached = packet
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return "OK"
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self.server.responder = MyResponder(self)
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target = self.dbg.CreateTarget("")
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process = self.connect(target)
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process.Detach()
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self.assertRegex(self.server.responder.detached, r"D;0*400")
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def test_signal_gdb(self):
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class MyResponder(MockGDBServerResponder):
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def qSupported(self, client_supported):
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return "PacketSize=3fff;QStartNoAckMode+"
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def haltReason(self):
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return "S0a"
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def cont(self):
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return self.haltReason()
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self.server.responder = MyResponder()
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self.runCmd("platform select remote-linux")
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target = self.createTarget("a.yaml")
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process = self.connect(target)
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self.assertEqual(process.threads[0].GetStopReason(), lldb.eStopReasonSignal)
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self.assertEqual(process.threads[0].GetStopDescription(100), "signal SIGBUS")
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def test_signal_lldb_old(self):
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class MyResponder(MockGDBServerResponder):
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def qSupported(self, client_supported):
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return "PacketSize=3fff;QStartNoAckMode+"
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def qHostInfo(self):
|
|
return "triple:61726d76372d756e6b6e6f776e2d6c696e75782d676e75;"
|
|
|
|
def QThreadSuffixSupported(self):
|
|
return "OK"
|
|
|
|
def haltReason(self):
|
|
return "S0a"
|
|
|
|
def cont(self):
|
|
return self.haltReason()
|
|
|
|
self.server.responder = MyResponder()
|
|
|
|
self.runCmd("platform select remote-linux")
|
|
target = self.createTarget("a.yaml")
|
|
process = self.connect(target)
|
|
|
|
self.assertEqual(process.threads[0].GetStopReason(), lldb.eStopReasonSignal)
|
|
self.assertEqual(process.threads[0].GetStopDescription(100), "signal SIGUSR1")
|
|
|
|
def test_signal_lldb(self):
|
|
class MyResponder(MockGDBServerResponder):
|
|
def qSupported(self, client_supported):
|
|
return "PacketSize=3fff;QStartNoAckMode+;native-signals+"
|
|
|
|
def qHostInfo(self):
|
|
return "triple:61726d76372d756e6b6e6f776e2d6c696e75782d676e75;"
|
|
|
|
def haltReason(self):
|
|
return "S0a"
|
|
|
|
def cont(self):
|
|
return self.haltReason()
|
|
|
|
self.server.responder = MyResponder()
|
|
|
|
self.runCmd("platform select remote-linux")
|
|
target = self.createTarget("a.yaml")
|
|
process = self.connect(target)
|
|
|
|
self.assertEqual(process.threads[0].GetStopReason(), lldb.eStopReasonSignal)
|
|
self.assertEqual(process.threads[0].GetStopDescription(100), "signal SIGUSR1")
|
|
|
|
def do_siginfo_test(self, platform, target_yaml, raw_data, expected):
|
|
class MyResponder(MockGDBServerResponder):
|
|
def qSupported(self, client_supported):
|
|
return "PacketSize=3fff;QStartNoAckMode+;qXfer:siginfo:read+"
|
|
|
|
def qXferRead(self, obj, annex, offset, length):
|
|
if obj == "siginfo":
|
|
return raw_data, False
|
|
else:
|
|
return None, False
|
|
|
|
def haltReason(self):
|
|
return "T02"
|
|
|
|
def cont(self):
|
|
return self.haltReason()
|
|
|
|
self.server.responder = MyResponder()
|
|
|
|
self.runCmd("platform select " + platform)
|
|
target = self.createTarget(target_yaml)
|
|
process = self.connect(target)
|
|
|
|
siginfo = process.threads[0].GetSiginfo()
|
|
self.assertSuccess(siginfo.GetError())
|
|
|
|
for key, value in expected.items():
|
|
self.assertEqual(
|
|
siginfo.GetValueForExpressionPath("." + key).GetValueAsUnsigned(), value
|
|
)
|
|
|
|
def test_siginfo_linux_amd64(self):
|
|
data = (
|
|
# si_signo si_errno si_code
|
|
"\x11\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00"
|
|
# __pad0 si_pid si_uid
|
|
"\x00\x00\x00\x00\xbf\xf7\x0b\x00\xe8\x03\x00\x00"
|
|
# si_status
|
|
"\x0c\x00\x00\x00"
|
|
+ "\x00" * 100
|
|
)
|
|
expected = {
|
|
"si_signo": 17, # SIGCHLD
|
|
"si_errno": 0,
|
|
"si_code": 1, # CLD_EXITED
|
|
"_sifields._sigchld.si_pid": 784319,
|
|
"_sifields._sigchld.si_uid": 1000,
|
|
"_sifields._sigchld.si_status": 12,
|
|
"_sifields._sigchld.si_utime": 0,
|
|
"_sifields._sigchld.si_stime": 0,
|
|
}
|
|
self.do_siginfo_test("remote-linux", "basic_eh_frame.yaml", data, expected)
|
|
|
|
def test_siginfo_linux_i386(self):
|
|
data = (
|
|
# si_signo si_errno si_code
|
|
"\x11\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00"
|
|
# si_pid si_uid si_status
|
|
"\x49\x43\x07\x00\xe8\x03\x00\x00\x0c\x00\x00\x00"
|
|
+ "\x00" * 104
|
|
)
|
|
expected = {
|
|
"si_signo": 17, # SIGCHLD
|
|
"si_errno": 0,
|
|
"si_code": 1, # CLD_EXITED
|
|
"_sifields._sigchld.si_pid": 475977,
|
|
"_sifields._sigchld.si_uid": 1000,
|
|
"_sifields._sigchld.si_status": 12,
|
|
"_sifields._sigchld.si_utime": 0,
|
|
"_sifields._sigchld.si_stime": 0,
|
|
}
|
|
self.do_siginfo_test("remote-linux", "basic_eh_frame-i386.yaml", data, expected)
|
|
|
|
def test_siginfo_freebsd_amd64(self):
|
|
data = (
|
|
# si_signo si_errno si_code
|
|
"\x0b\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00"
|
|
# si_pid si_uid si_status
|
|
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
|
|
# si_addr
|
|
"\x76\x98\xba\xdc\xfe\x00\x00\x00"
|
|
# si_status si_trapno
|
|
"\x00\x00\x00\x00\x00\x00\x00\x00\x0c\x00\x00\x00"
|
|
+ "\x00" * 36
|
|
)
|
|
|
|
expected = {
|
|
"si_signo": 11, # SIGSEGV
|
|
"si_errno": 0,
|
|
"si_code": 1, # SEGV_MAPERR
|
|
"si_addr": 0xFEDCBA9876,
|
|
"_reason._fault._trapno": 12,
|
|
}
|
|
self.do_siginfo_test("remote-freebsd", "basic_eh_frame.yaml", data, expected)
|