1from __future__ import print_function 2import lldb 3from lldbsuite.test.lldbtest import * 4from lldbsuite.test.decorators import * 5from lldbsuite.test.gdbclientutils import * 6from lldbsuite.test.lldbgdbclient import GDBRemoteTestBase 7 8 9class TestPartialGPacket(GDBRemoteTestBase): 10 11 @skipIfXmlSupportMissing 12 @skipIfRemote 13 def test(self): 14 """ 15 Test GDB remote fallback to 'p' packet when 'g' packet does not include all registers. 16 """ 17 class MyResponder(MockGDBServerResponder): 18 19 def qXferRead(self, obj, annex, offset, length): 20 if annex == "target.xml": 21 return """<?xml version="1.0"?> 22 <!DOCTYPE feature SYSTEM "gdb-target.dtd"> 23 <target> 24 <architecture>arm</architecture> 25 <feature name="org.gnu.gdb.arm.m-profile"> 26 <reg name="r0" bitsize="32" type="uint32" group="general"/> 27 <reg name="r1" bitsize="32" type="uint32" group="general"/> 28 <reg name="r2" bitsize="32" type="uint32" group="general"/> 29 <reg name="r3" bitsize="32" type="uint32" group="general"/> 30 <reg name="r4" bitsize="32" type="uint32" group="general"/> 31 <reg name="r5" bitsize="32" type="uint32" group="general"/> 32 <reg name="r6" bitsize="32" type="uint32" group="general"/> 33 <reg name="r7" bitsize="32" type="uint32" group="general"/> 34 <reg name="r8" bitsize="32" type="uint32" group="general"/> 35 <reg name="r9" bitsize="32" type="uint32" group="general"/> 36 <reg name="r10" bitsize="32" type="uint32" group="general"/> 37 <reg name="r11" bitsize="32" type="uint32" group="general"/> 38 <reg name="r12" bitsize="32" type="uint32" group="general"/> 39 <reg name="sp" bitsize="32" type="data_ptr" group="general"/> 40 <reg name="lr" bitsize="32" type="uint32" group="general"/> 41 <reg name="pc" bitsize="32" type="code_ptr" group="general"/> 42 <reg name="xpsr" bitsize="32" regnum="25" type="uint32" group="general"/> 43 <reg name="MSP" bitsize="32" regnum="26" type="uint32" group="general"/> 44 <reg name="PSP" bitsize="32" regnum="27" type="uint32" group="general"/> 45 <reg name="PRIMASK" bitsize="32" regnum="28" type="uint32" group="general"/> 46 <reg name="BASEPRI" bitsize="32" regnum="29" type="uint32" group="general"/> 47 <reg name="FAULTMASK" bitsize="32" regnum="30" type="uint32" group="general"/> 48 <reg name="CONTROL" bitsize="32" regnum="31" type="uint32" group="general"/> 49 </feature> 50 </target>""", False 51 else: 52 return None, False 53 54 def readRegister(self, regnum): 55 if regnum == 31: 56 return "cdcc8c3f00000000" 57 return "E01" 58 59 def readRegisters(self): 60 return "20000000f8360020001000002fcb0008f8360020a0360020200c0020000000000000000000000000000000000000000000000000b87f0120b7d100082ed2000800000001" 61 62 def haltReason(self): 63 return "S05" 64 65 def qfThreadInfo(self): 66 return "mdead" 67 68 def qC(self): 69 return "" 70 71 def qSupported(self, client_supported): 72 return "PacketSize=4000;qXfer:memory-map:read-;QStartNoAckMode+;qXfer:threads:read+;hwbreak+;qXfer:features:read+" 73 74 def QThreadSuffixSupported(self): 75 return "OK" 76 77 def QListThreadsInStopReply(self): 78 return "OK" 79 80 self.server.responder = MyResponder() 81 if self.TraceOn(): 82 self.runCmd("log enable gdb-remote packets") 83 self.addTearDownHook( 84 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( 98 0).GetFrameAtIndex(0).FindRegister("r0") 99 self.assertEqual(r0_valobj.GetValueAsUnsigned(), 0x20) 100 101 pc_valobj = process.GetThreadAtIndex( 102 0).GetFrameAtIndex(0).FindRegister("pc") 103 self.assertEqual(pc_valobj.GetValueAsUnsigned(), 0x0800d22e) 104 105 pc_valobj = process.GetThreadAtIndex( 106 0).GetFrameAtIndex(0).FindRegister("CONTROL") 107 self.assertEqual(pc_valobj.GetValueAsUnsigned(), 0x3f8ccccd) 108