private static void SetDebugRegisters(HookRegister register, uint hookLocation, ref ThreadContext ct, bool remove)
{
if (remove)
{
uint flagBit = 0;
switch (register)
{
case HookRegister.DR0:
flagBit = 1 << 0;
ct.Dr0 = 0;
break;
case HookRegister.DR1:
flagBit = 1 << 2;
ct.Dr1 = 0;
break;
case HookRegister.DR2:
flagBit = 1 << 4;
ct.Dr2 = 0;
break;
case HookRegister.DR3:
flagBit = 1 << 6;
ct.Dr3 = 0;
break;
}
ct.Dr7 &= ~flagBit;
}
else
{
switch (register)
{
case HookRegister.DR0:
ct.Dr0 = (uint)hookLocation;
ct.Dr7 |= 1 << 0;
break;
case HookRegister.DR1:
ct.Dr1 = (uint)hookLocation;
ct.Dr7 |= 1 << 2;
break;
case HookRegister.DR2:
ct.Dr2 = (uint)hookLocation;
ct.Dr7 |= 1 << 4;
break;
case HookRegister.DR3:
ct.Dr3 = (uint)hookLocation;
ct.Dr7 |= 1 << 6;
break;
}
ct.Dr6 = 0;
}
}
private void Method_SelectedIndexChanged(object sender, EventArgs e)
{
if (this.Method.SelectedIndex == 1)
{
AddressLabel.Text = R._("書き込む");
AddressLabel.Show();
Address.Show();
HookRegisterLabel.Hide();
HookRegister.Hide();
FREEAREALabel.Hide();
FREEAREA.Hide();
PatchMakerButton.Show();
DebugSymbol.Show();
DebugSymbolComboBox.Show();
ELFLabel.Hide();
ELFComboBox.Hide();
Address.Value = FREEAREA.Value;
}
else if (this.Method.SelectedIndex == 2)
{
AddressLabel.Text = R._("フックするアドレス");
AddressLabel.Show();
Address.Show();
HookRegisterLabel.Show();
HookRegister.Show();
FREEAREALabel.Show();
FREEAREA.Show();
PatchMakerButton.Show();
DebugSymbol.Show();
DebugSymbolComboBox.Show();
ELFLabel.Hide();
ELFComboBox.Hide();
Address.Value = 0;
}
else
{
AddressLabel.Hide();
Address.Hide();
HookRegisterLabel.Hide();
HookRegister.Hide();
FREEAREALabel.Hide();
FREEAREA.Hide();
PatchMakerButton.Hide();
DebugSymbol.Hide();
DebugSymbolComboBox.Hide();
ELFLabel.Show();
ELFComboBox.Show();
}
}
public HardwareBreakpointHook(HookRegister register, uint hookLocation, HandleHookCallback callback)
{
var i = new HookItem {
Callback = callback, Location = hookLocation, Register = register
};
_hook = i;
Hooks.Add(i);
_hookCount++;
// So basically, DR hooks work off "waiting for a debug event" basically.
// In actuality we're waiting on an exception, but for the sake of wrapping a hook,
// we'll do it in a separate thread. This means we need to ensure we close the thread (IsBackground) when the app closes
// and ensure we only ever create *one* polling thread.
if (_hookCount == 0 || _workerThread == null)
{
_workerThread =
new Thread(() => InstallHardwareHook());
_workerThread.IsBackground = true;
_workerThread.Start();
}
SetThreadHook(i, false);
}
