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using System;
using System.Xml;
using Mono.Debugger.Backend;
using Mono.Debugger.Languages;
using Mono.Debugger.Languages.Mono;
namespace Mono.Debugger
{
public class MainMethodBreakpoint : Breakpoint
{
public readonly DebuggerSession Session;
BreakpointHandle handle;
public override bool IsPersistent {
get { return true; }
}
public override bool IsActivated {
get { return handle != null; }
}
public override bool HideFromUser {
get { return true; }
}
internal override BreakpointHandle Resolve (Thread target, StackFrame frame)
{
if (handle != null)
return handle;
if (frame.Thread.Process.IsManaged) {
MonoLanguageBackend mono = frame.Thread.Process.Servant.MonoLanguage;
MonoFunctionType main = mono.MainMethod;
if (main == null)
return null;
handle = new FunctionBreakpointHandle (this, main, -1);
} else {
BfdContainer bfd_container = frame.Thread.Process.Servant.BfdContainer;
TargetAddress main = bfd_container.LookupSymbol ("main");
if (main.IsNull)
return null;
handle = new AddressBreakpointHandle (this, main);
}
return handle;
}
public override void Activate (Thread target)
{
Resolve (target, target.CurrentFrame);
if (handle == null)
throw new TargetException (TargetError.LocationInvalid);
handle.Insert (target);
}
public override void Deactivate (Thread target)
{
if (handle != null) {
handle.Remove (target);
handle = null;
}
}
public override bool CheckBreakpointHit (Thread target, TargetAddress address)
{
return target.Process.ProcessStart.StopInMain;
}
internal override void OnTargetExited ()
{
handle = null;
}
protected override void GetSessionData (XmlElement root, XmlElement element)
{
XmlElement location_e = root.OwnerDocument.CreateElement ("MainMethod");
element.AppendChild (location_e);
}
internal MainMethodBreakpoint (DebuggerSession session)
: base (EventType.Breakpoint, "<main>", ThreadGroup.Global)
{
this.Session = session;
}
}
}
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