Package: mono-gmcs
Version: 2.0.1-5
Tags: fixed-upstream
The following test case yields unverifiable code when compiled by gmcs
2.0.1-5:
using System;
using System.Windows.Forms;
internal class TestForm : Form
{
private int testInt = 0;
public static void Main()
{
Form f = new TestForm();
Application.Run(f);
}
public TestForm()
{
this.Load += TestForm_Load;
}
private void TestForm_Load(object sender, EventArgs e)
{
string g = string.Empty;
this.Invoke((MethodInvoker)delegate { int i = testInt; });
this.Invoke((MethodInvoker)delegate { int i = testInt;
string s = g; });
}
}
Expected results: Blank form displayed, no exception raised
Actual results:
When running with --security=verifiable:
Unhandled Exception: System.Security.VerificationException: This object
not compatible with function pointer for delegate creation at 0x0020
at System.Windows.Forms.Form.OnLoad (System.EventArgs e) [0x00000]
at System.Windows.Forms.Form.OnLoadInternal (System.EventArgs e)
[0x00000]
at System.Windows.Forms.Form.OnCreateControl () [0x00000]
at System.Windows.Forms.Control.CreateControl () [0x00000]
at System.Windows.Forms.Control.WmShowWindow
(System.Windows.Forms.Message& m) [0x00000]
at System.Windows.Forms.Control.WndProc (System.Windows.Forms.Message&
m) [0x00000]
at System.Windows.Forms.ScrollableControl.WndProc
(System.Windows.Forms.Message& m) [0x00000]
at System.Windows.Forms.ContainerControl.WndProc
(System.Windows.Forms.Message& m) [0x00000]
at System.Windows.Forms.Form.WndProc (System.Windows.Forms.Message& m)
[0x00000]
at System.Windows.Forms.Control+ControlWindowTarget.OnMessage
(System.Windows.Forms.Message& m) [0x00000]
at System.Windows.Forms.Control+ControlNativeWindow.WndProc
(System.Windows.Forms.Message& m) [0x00000]
at System.Windows.Forms.NativeWindow.WndProc (IntPtr hWnd, Msg msg,
IntPtr wParam, IntPtr lParam) [0x00000]
at System.Windows.Forms.XplatUIX11.SendMessage (IntPtr hwnd, Msg
message, IntPtr wParam, IntPtr lParam) [0x00000]
at System.Windows.Forms.XplatUIX11.MapWindow (System.Windows.Forms.Hwnd
hwnd, WindowType windows) [0x00000]
at System.Windows.Forms.XplatUIX11.CreateWindow
(System.Windows.Forms.CreateParams cp) [0x00000]
at System.Windows.Forms.XplatUI.CreateWindow
(System.Windows.Forms.CreateParams cp) [0x00000]
at System.Windows.Forms.NativeWindow.CreateHandle
(System.Windows.Forms.CreateParams cp) [0x00000]
at System.Windows.Forms.Control.CreateHandle () [0x00000]
at System.Windows.Forms.Form.CreateHandle () [0x00000]
at System.Windows.Forms.Control.CreateControl () [0x00000]
at System.Windows.Forms.Control.SetVisibleCore (Boolean value) [0x00000]
at System.Windows.Forms.Form.SetVisibleCore (Boolean value) [0x00000]
at System.Windows.Forms.Control.set_Visible (Boolean value) [0x00000]
at (wrapper remoting-invoke-with-check)
System.Windows.Forms.Control:set_Visible (bool)
at System.Windows.Forms.Application.RunLoop (Boolean Modal,
System.Windows.Forms.ApplicationContext context) [0x00000]
at System.Windows.Forms.Application.Run
(System.Windows.Forms.ApplicationContext context) [0x00000]
at System.Windows.Forms.Application.Run (System.Windows.Forms.Form
mainForm) [0x00000]
at TestForm.Main () [0x00000]
When run without --security=verifiable:
Unhandled Exception: System.Reflection.TargetException: Object does not
match target type.
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags
invokeAttr, System.Reflection.Binder binder, System.Object[] parameters,
System.Globalization.CultureInfo culture) [0x00000]
at System.Reflection.MethodBase.Invoke (System.Object obj,
System.Object[] parameters) [0x00000]
at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000]
at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args)
[0x00000]
at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000]
at System.Windows.Forms.Control.Invoke (System.Delegate method,
System.Object[] args) [0x00000]
at (wrapper remoting-invoke-with-check)
System.Windows.Forms.Control:Invoke (System.Delegate,object[])
at System.Windows.Forms.Control.Invoke (System.Delegate method)
[0x00000]
at TestForm.TestForm_Load (System.Object sender, System.EventArgs e)
[0x00000]
etc.
This used to work in Debian. I'm not sure exactly when the regression
was, but I can compile this test case with 1.2.6 and the resulting
executable runs on both 1.2.6 and 2.0.1-5 (and is verifiable). I've also
tried SVN and confirmed that it works so the issue has been resolved
upstream.
- Sharif
--
To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
