void SetFirstStackBytesStartingAddress(ParserField aField, uint aValue)
{
ThreadStackInfo stackInfo = (ThreadStackInfo)aField.Tag;
ThreadStackData stackData = stackInfo.Data;
stackData.SetStartingAddress(aValue);
}
private RegisterCollection GetUserContextRegisters()
{
bool isCurrent = IsCurrent;
RegisterCollection ret = new RegisterCollection(Registers, RegisterCollection.TType.ETypeUser, iParentThread.OwningProcess);
// User-land CPSR is stored in SPSR_SVC
RegisterEntry spsr = Registers[TArmRegisterType.EArmReg_SPSR];
ret[TArmRegisterType.EArmReg_CPSR].Value = spsr.Value;
// Get the context table that we'll need to work out the reg positions
UserContextTable.UserContextTable table = CrashDebugger.UserContextTableManager[UserContextType];
// Get SP and stack data for supervisor thread
uint sp = SavedSP;
ThreadStackData spData = iParentThread.StackInfoSupervisor.Data;
if (spData.Info.Data.Size > 0)
{
// This is the user side address that will be branched back to once we exit SVC mode...
uint retAddr = UserReturnAddress;
ret[TArmRegisterType.EArmReg_PC].Value = retAddr;
// Now try to get the register values off of the supervisor stack
DataBuffer superStackData = spData.Data;
foreach (ArmRegister reg in ret)
{
if (UserContextTable.UserContextTable.IsSupported(reg.RegType))
{
UserContextTableEntry uctEntry = table[reg.RegType];
if (uctEntry.IsAvailable(isCurrent))
{
ArmRegister savedSp = new ArmRegister(TArmRegisterType.EArmReg_SP, sp);
uint newValue = uctEntry.Process(savedSp, superStackData);
reg.Value = newValue;
}
}
}
}
// Getting context of current thread? Some values can be fetched directly
// from the registers if they are not available from the stack.
if (isCurrent && table[TArmRegisterType.EArmReg_SP].Type == UserContextTableEntry.TType.EOffsetFromSp)
{
RegisterCollection userRegs = CrashDebugger.InfoCpu[RegisterCollection.TType.ETypeUser];
//
ret[TArmRegisterType.EArmReg_SP].Value = userRegs[TArmRegisterType.EArmReg_SP];
ret[TArmRegisterType.EArmReg_LR].Value = userRegs[TArmRegisterType.EArmReg_LR];
}
return(ret);
}
