private void OnGDBPaused(StopReply response)
{
this.CurrentBreakpoint = null;
this.CurrentObjectFile = null;
// Update Registers
this.registers = this.connector.ReadRegisters();
var regs = this.registers.Keys.ToArray();
var trues = regs.Select((_) => true).ToArray();
this.Registers = new RegisterSet(regs, trues, new bool[regs.Length]);
// Fire event
if (this.RefreshRegisters != null)
{
// Do a batch update of all regs
this.RefreshRegisters(this, new RegistersChangedEventArgs(
this.registers.Keys.Select((reg) => reg.Name).ToArray()));
}
// Update current address
foreach (var pair in this.registers)
{
if (pair.Key.Type == RegisterType.InstructionPointer)
{
this.CurrentAddress = Utils.LongFromBytes(pair.Value);
break;
}
}
// Update breakpoint
foreach (Breakpoint bp in this.breakpoints)
{
if (bp.Address == this.CurrentAddress)
{
this.CurrentBreakpoint = bp; break;
}
}
// Update object file
foreach (ObjectCodeFile file in Application.Session.LoadedImages)
{
if (file.Sections[0].LoadMemoryAddress <= this.CurrentAddress &&
file.Sections[0].LoadMemoryAddress + file.Size > this.CurrentAddress)
{
this.CurrentObjectFile = file; break;
}
}
// If object file found, try and load current code unit
if (this.CurrentObjectFile != null)
{
this.CurrentCodeUnit = this.CurrentObjectFile.GetCode(this.CurrentAddress);
}
// Fire stepped event
if (this.Suspended != null) this.Suspended(this, null);
// Qemu gets stuck on the current line unless the breakpoint is disabled
if (this.CurrentBreakpoint != null)
{
this.ClearBreakpoint(this.CurrentBreakpoint.Address);
}
}
private void HandleStopReply(Message msg)
{
if (msg.Data[0] == 'O')
{
// It's actually just console output
if (this.ConsoleOutput != null)
{
// Use ThreadPool so that we don't interrupt the message loop thread
ThreadPool.QueueUserWorkItem((o) =>
this.ConsoleOutput(msg.Data.Remove(0, 1)));
}
}
else if (msg.Data[0] == 'F')
{
return; // Ignore system call requests
}
else // We have an actual stop reply
{
StopReply reply = new StopReply(msg.Data);
if (reply.Reason == StopReason.Trap || reply.Reason == StopReason.Watchpoint)
{
if (this.Paused != null)
{
// Use ThreadPool so that we don't interrupt the message loop thread
ThreadPool.QueueUserWorkItem((o) => this.Paused(reply));
}
}
else if (reply.Reason == StopReason.Termination)
{
if (this.Terminated != null)
{
// Use ThreadPool so that we don't interrupt the message loop thread
ThreadPool.QueueUserWorkItem((o) => this.Terminated());
}
}
}
}
