1from __future__ import print_function 2import lldb 3from lldbsuite.test.lldbtest import * 4from lldbsuite.test.decorators import * 5from gdbclientutils import * 6 7 8class TestPartialGPacket(GDBRemoteTestBase): 9 10 @skipIfXmlSupportMissing 11 @skipIfRemote 12 def test(self): 13 """ 14 Test GDB remote fallback to 'p' packet when 'g' packet does not include all registers. 15 """ 16 class MyResponder(MockGDBServerResponder): 17 18 def qXferRead(self, obj, annex, offset, length): 19 if annex == "target.xml": 20 return """<?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>""", False 50 else: 51 return None, False 52 53 def readRegister(self, regnum): 54 if regnum == 31: 55 return "cdcc8c3f00000000" 56 return "E01" 57 58 def readRegisters(self): 59 return "20000000f8360020001000002fcb0008f8360020a0360020200c0020000000000000000000000000000000000000000000000000b87f0120b7d100082ed2000800000001" 60 61 def haltReason(self): 62 return "S05" 63 64 def qfThreadInfo(self): 65 return "mdead" 66 67 def qC(self): 68 return "" 69 70 def qSupported(self, client_supported): 71 return "PacketSize=4000;qXfer:memory-map:read-;QStartNoAckMode+;qXfer:threads:read+;hwbreak+;qXfer:features:read+" 72 73 def QThreadSuffixSupported(self): 74 return "OK" 75 76 def QListThreadsInStopReply(self): 77 return "OK" 78 79 self.server.responder = MyResponder() 80 if self.TraceOn(): 81 self.runCmd("log enable gdb-remote packets") 82 self.addTearDownHook( 83 lambda: self.runCmd("log disable gdb-remote packets")) 84 85 self.dbg.SetDefaultArchitecture("armv7em") 86 target = self.dbg.CreateTargetWithFileAndArch(None, None) 87 88 process = self.connect(target) 89 90 if self.TraceOn(): 91 interp = self.dbg.GetCommandInterpreter() 92 result = lldb.SBCommandReturnObject() 93 interp.HandleCommand("target list", result) 94 print(result.GetOutput()) 95 96 r0_valobj = process.GetThreadAtIndex( 97 0).GetFrameAtIndex(0).FindRegister("r0") 98 self.assertEqual(r0_valobj.GetValueAsUnsigned(), 0x20) 99 100 pc_valobj = process.GetThreadAtIndex( 101 0).GetFrameAtIndex(0).FindRegister("pc") 102 self.assertEqual(pc_valobj.GetValueAsUnsigned(), 0x0800d22e) 103 104 pc_valobj = process.GetThreadAtIndex( 105 0).GetFrameAtIndex(0).FindRegister("CONTROL") 106 self.assertEqual(pc_valobj.GetValueAsUnsigned(), 0x3f8ccccd) 107