diff options
Diffstat (limited to 'lldb/packages/Python/lldbsuite')
2 files changed, 85 insertions, 1 deletions
diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestGDBRemoteClient.py b/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestGDBRemoteClient.py index 3bf0c52edae..fd13b1f2cd6 100644 --- a/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestGDBRemoteClient.py +++ b/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/TestGDBRemoteClient.py @@ -7,6 +7,18 @@ from gdbclientutils import * class TestGDBRemoteClient(GDBRemoteTestBase): + class gPacketResponder(MockGDBServerResponder): + def readRegisters(self): + return '0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000' + + def setUp(self): + super(TestGDBRemoteClient, self).setUp() + self._initial_platform = lldb.DBG.GetSelectedPlatform() + + def tearDown(self): + lldb.DBG.SetSelectedPlatform(self._initial_platform) + super(TestGDBRemoteClient, self).tearDown() + def test_connect(self): """Test connecting to a remote gdb server""" target = self.createTarget("a.yaml") @@ -37,3 +49,75 @@ class TestGDBRemoteClient(GDBRemoteTestBase): error = lldb.SBError() target.AttachToProcessWithID(lldb.SBListener(), 47, error) self.assertEquals(error_msg, error.GetCString()) + + def test_read_registers_using_g_packets(self): + """Test reading registers using 'g' packets (default behavior)""" + self.server.responder = self.gPacketResponder() + target = self.createTarget("a.yaml") + process = self.connect(target) + + self.assertEquals(1, self.server.responder.packetLog.count("g")) + self.server.responder.packetLog = [] + self.read_registers(process) + # Reading registers should not cause any 'p' packets to be exchanged. + self.assertEquals( + 0, len([p for p in self.server.responder.packetLog if p.startswith("p")])) + + def test_read_registers_using_p_packets(self): + """Test reading registers using 'p' packets""" + self.dbg.HandleCommand( + "settings set plugin.process.gdb-remote.use-g-packet-for-reading false") + target = self.createTarget("a.yaml") + process = self.connect(target) + + self.read_registers(process) + self.assertFalse("g" in self.server.responder.packetLog) + self.assertGreater( + len([p for p in self.server.responder.packetLog if p.startswith("p")]), 0) + + def test_write_registers_using_P_packets(self): + """Test writing registers using 'P' packets (default behavior)""" + self.server.responder = self.gPacketResponder() + target = self.createTarget("a.yaml") + process = self.connect(target) + + self.write_registers(process) + self.assertEquals(0, len( + [p for p in self.server.responder.packetLog if p.startswith("G")])) + self.assertGreater( + len([p for p in self.server.responder.packetLog if p.startswith("P")]), 0) + + def test_write_registers_using_G_packets(self): + """Test writing registers using 'G' packets""" + + class MyResponder(self.gPacketResponder): + def readRegister(self, register): + # empty string means unsupported + return "" + + self.server.responder = MyResponder() + target = self.createTarget("a.yaml") + process = self.connect(target) + + self.write_registers(process) + self.assertEquals(0, len( + [p for p in self.server.responder.packetLog if p.startswith("P")])) + self.assertGreater(len( + [p for p in self.server.responder.packetLog if p.startswith("G")]), 0) + + def read_registers(self, process): + self.for_each_gpr( + process, lambda r: self.assertEquals("0x00000000", r.GetValue())) + + def write_registers(self, process): + self.for_each_gpr( + process, lambda r: r.SetValueFromCString("0x00000000")) + + def for_each_gpr(self, process, operation): + registers = process.GetThreadAtIndex(0).GetFrameAtIndex(0).GetRegisters() + self.assertGreater(registers.GetSize(), 0) + regSet = registers[0] + numChildren = regSet.GetNumChildren() + self.assertGreater(numChildren, 0) + for i in range(numChildren): + operation(regSet.GetChildAtIndex(i)) diff --git a/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/gdbclientutils.py b/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/gdbclientutils.py index 8237d1e0712..7caee175ae7 100644 --- a/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/gdbclientutils.py +++ b/lldb/packages/Python/lldbsuite/test/functionalities/gdb_remote_client/gdbclientutils.py @@ -115,7 +115,7 @@ class MockGDBServerResponder: return self.readRegister(int(regnum, 16)) if packet[0] == "P": register, value = packet[1:].split("=") - return self.readRegister(int(register, 16), value) + return self.writeRegister(int(register, 16), value) if packet[0] == "m": addr, length = [int(x, 16) for x in packet[1:].split(',')] return self.readMemory(addr, length) |
