1import lldb 2from lldbsuite.test.lldbtest import * 3from lldbsuite.test.decorators import * 4from lldbsuite.test.gdbclientutils import * 5from lldbsuite.test.lldbgdbclient import GDBRemoteTestBase 6 7 8class TestPartialGPacket(GDBRemoteTestBase): 9 @skipIfXmlSupportMissing 10 @skipIfRemote 11 def test(self): 12 """ 13 Test GDB remote fallback to 'p' packet when 'g' packet does not include all registers. 14 """ 15 16 class MyResponder(MockGDBServerResponder): 17 def qXferRead(self, obj, annex, offset, length): 18 if annex == "target.xml": 19 return ( 20 """<?xml version="1.0"?> 21 <!DOCTYPE feature SYSTEM "gdb-target.dtd"> 22 <target> 23 <architecture>arm</architecture> 24 <feature name="org.gnu.gdb.arm.m-profile"> 25 <reg name="r0" bitsize="32" type="uint32" group="general"/> 26 <reg name="r1" bitsize="32" type="uint32" group="general"/> 27 <reg name="r2" bitsize="32" type="uint32" group="general"/> 28 <reg name="r3" bitsize="32" type="uint32" group="general"/> 29 <reg name="r4" bitsize="32" type="uint32" group="general"/> 30 <reg name="r5" bitsize="32" type="uint32" group="general"/> 31 <reg name="r6" bitsize="32" type="uint32" group="general"/> 32 <reg name="r7" bitsize="32" type="uint32" group="general"/> 33 <reg name="r8" bitsize="32" type="uint32" group="general"/> 34 <reg name="r9" bitsize="32" type="uint32" group="general"/> 35 <reg name="r10" bitsize="32" type="uint32" group="general"/> 36 <reg name="r11" bitsize="32" type="uint32" group="general"/> 37 <reg name="r12" bitsize="32" type="uint32" group="general"/> 38 <reg name="sp" bitsize="32" type="data_ptr" group="general"/> 39 <reg name="lr" bitsize="32" type="uint32" group="general"/> 40 <reg name="pc" bitsize="32" type="code_ptr" group="general"/> 41 <reg name="xpsr" bitsize="32" regnum="25" type="uint32" group="general"/> 42 <reg name="MSP" bitsize="32" regnum="26" type="uint32" group="general"/> 43 <reg name="PSP" bitsize="32" regnum="27" type="uint32" group="general"/> 44 <reg name="PRIMASK" bitsize="32" regnum="28" type="uint32" group="general"/> 45 <reg name="BASEPRI" bitsize="32" regnum="29" type="uint32" group="general"/> 46 <reg name="FAULTMASK" bitsize="32" regnum="30" type="uint32" group="general"/> 47 <reg name="CONTROL" bitsize="32" regnum="31" type="uint32" group="general"/> 48 </feature> 49 </target>""", 50 False, 51 ) 52 else: 53 return None, False 54 55 def readRegister(self, regnum): 56 if regnum == 31: 57 return "cdcc8c3f00000000" 58 return "E01" 59 60 def readRegisters(self): 61 return "20000000f8360020001000002fcb0008f8360020a0360020200c0020000000000000000000000000000000000000000000000000b87f0120b7d100082ed2000800000001" 62 63 def haltReason(self): 64 return "S05" 65 66 def qfThreadInfo(self): 67 return "mdead" 68 69 def qC(self): 70 return "" 71 72 def qSupported(self, client_supported): 73 return "PacketSize=4000;qXfer:memory-map:read-;QStartNoAckMode+;qXfer:threads:read+;hwbreak+;qXfer:features:read+" 74 75 def QThreadSuffixSupported(self): 76 return "OK" 77 78 def QListThreadsInStopReply(self): 79 return "OK" 80 81 self.server.responder = MyResponder() 82 if self.TraceOn(): 83 self.runCmd("log enable gdb-remote packets") 84 self.addTearDownHook(lambda: self.runCmd("log disable gdb-remote packets")) 85 86 self.dbg.SetDefaultArchitecture("armv7em") 87 target = self.dbg.CreateTargetWithFileAndArch(None, None) 88 89 process = self.connect(target) 90 91 if self.TraceOn(): 92 interp = self.dbg.GetCommandInterpreter() 93 result = lldb.SBCommandReturnObject() 94 interp.HandleCommand("target list", result) 95 print(result.GetOutput()) 96 97 r0_valobj = process.GetThreadAtIndex(0).GetFrameAtIndex(0).FindRegister("r0") 98 self.assertEqual(r0_valobj.GetValueAsUnsigned(), 0x20) 99 100 pc_valobj = process.GetThreadAtIndex(0).GetFrameAtIndex(0).FindRegister("pc") 101 self.assertEqual(pc_valobj.GetValueAsUnsigned(), 0x0800D22E) 102 103 pc_valobj = ( 104 process.GetThreadAtIndex(0).GetFrameAtIndex(0).FindRegister("CONTROL") 105 ) 106 self.assertEqual(pc_valobj.GetValueAsUnsigned(), 0x3F8CCCCD) 107