129 lines · python
1import lldb2from lldbsuite.test.lldbtest import *3from lldbsuite.test.decorators import *4from lldbsuite.test.gdbclientutils import *5from lldbsuite.test.lldbgdbclient import GDBRemoteTestBase6 7# This test ensures that LLDB correctly handles packets sent by MSPDebug.8# https://github.com/dlbeer/mspdebug9 10 11class MyResponder(MockGDBServerResponder):12 def qSupported(self, client_supported):13 return "PacketSize=4000"14 15 def setBreakpoint(self, packet):16 return "OK"17 18 def stopPackets():19 # Registers 3 to 15 are empty20 regs3to15 = "".join("%02x:%s;" % (i, "00000000") for i in range(3, 16))21 yield "T0500:00050000;01:00000000;02:00000000;" + regs3to1522 yield "T0500:10050000;01:baff0000;02:05000000;" + regs3to1523 yield "T0500:16050000;01:baff0000;02:05000000;" + regs3to1524 25 stopPacket = stopPackets()26 27 def haltReason(self):28 return next(self.stopPacket)29 30 def cont(self):31 return self.haltReason()32 33 # Memory dump34 def readMemory(self, addr, length):35 # Program memory36 if addr == 0x0400:37 return (38 ("ff" * 256)39 + "3140c0ff0c43b0121c05b01281010000b240d2043c051c423c0530413180020081430000b01210053150020030411c4330413c402a0030410c433041"40 + ("ff" * 196)41 )42 # Stack contents43 if addr == 0xFE00:44 return ("ff" * 442) + "280500000a05" + ("ff" * 62) + "0005"45 46 47class TestMSP430MSPDebug(GDBRemoteTestBase):48 @skipIfLLVMTargetMissing("MSP430")49 def test(self):50 """51 Test LLDB's MSP430 functionality.52 """53 target = self.createTarget("msp430.yaml")54 self.server.responder = MyResponder()55 56 if self.TraceOn():57 self.runCmd("log enable gdb-remote packets")58 self.addTearDownHook(lambda: self.runCmd("log disable gdb-remote packets"))59 60 process = self.connect(target)61 lldbutil.expect_state_changes(62 self, self.dbg.GetListener(), process, [lldb.eStateStopped]63 )64 num_threads = len(process.threads)65 self.assertEqual(num_threads, 1, "Only one thread")66 thread = process.GetThreadAtIndex(0)67 68 # Test if a breakpoint can be set69 bp = target.BreakpointCreateByName("func")70 self.assertTrue(bp.IsValid())71 bp.SetEnabled(True)72 self.assertTrue(bp.IsEnabled())73 74 # Test if the breakpoint address is resolved correctly75 self.assertEqual(bp.GetNumLocations(), 1, "Only one location")76 bp_loc = bp.GetLocationAtIndex(0)77 self.assertEqual(78 bp_loc.GetAddress().GetLoadAddress(target), 0x510, "Address of main"79 )80 81 # Test if the process stops at the breakpoint82 process.Continue()83 self.assertStopReason(84 thread.GetStopReason(), lldb.eStopReasonBreakpoint, "Hit a breakpoint"85 )86 87 # Check if disassembler works and the current function is "func"88 func = thread.GetFrameAtIndex(0).GetFunction()89 insts = func.GetInstructions(target)90 inst = insts.GetInstructionAtIndex(0)91 self.assertEqual(inst.GetMnemonic(target), "mov")92 self.assertEqual(inst.GetOperands(target), "#1234, &1340")93 94 # Test if thread can step a single instruction95 thread.StepInstruction(False)96 self.assertEqual(97 thread.GetFrameAtIndex(0).GetPCAddress().GetLoadAddress(target),98 0x516,99 "Address of the next instruction",100 )101 102 # Test if registers are being set correctly103 registerSet = thread.GetFrameAtIndex(0).GetRegisters().GetValueAtIndex(0)104 reg_val_dict = {105 "pc": 0x0516,106 "sp": 0xFFBA,107 "r2": 0x0005,108 "r3": 0x0000,109 "fp": 0x0000,110 "r5": 0x0000,111 "r6": 0x0000,112 "r7": 0x0000,113 "r8": 0x0000,114 "r9": 0x0000,115 "r10": 0x0000,116 "r11": 0x0000,117 "r12": 0x0000,118 "r13": 0x0000,119 "r14": 0x0000,120 "r15": 0x0000,121 }122 for reg in registerSet:123 self.assertEqual(reg.GetValueAsUnsigned(), reg_val_dict[reg.GetName()])124 125 # Check if backtracing works:126 self.assertGreaterEqual(len(thread.frames), 3)127 crt0_addr = thread.GetFrameAtIndex(2).GetPCAddress().GetLoadAddress(target)128 self.assertEqual(crt0_addr, 0x50A)129