[Mono-bugs] [Bug 77118][Maj] New - StackFrame is invalid on Mono but not in Windows

[bugzilla-daemon at bugzilla.ximian.com]

Please do not reply to this email- if you want to comment on the bug, go to the
URL shown below and enter your comments there.

Changed by richard.torkar at htu.se.

http://bugzilla.ximian.com/show_bug.cgi?id=77118

--- shadow/77118	2005-12-29 07:35:34.000000000 -0500
+++ shadow/77118.tmp.17342	2005-12-29 07:35:34.000000000 -0500
@@ -0,0 +1,89 @@
+Bug#: 77118
+Product: Mono: Runtime
+Version: 1.1
+OS: 
+OS Details: OS X 10.4.3
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Major
+Component: JIT
+AssignedTo: lupus at ximian.com                            
+ReportedBy: richard.torkar at htu.se               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: StackFrame is invalid on Mono but not in Windows
+
+(Dunno which component to file this under, JIT maybe Paolo?)
+
+Description of Problem:
+I have below a simple example that works on Windows .NET (1.1.4322) and
+Linux (Mono 1.1.9.2), but bails with a System.NullReferenceException on OS
+X (Mono 1.1.11).
+
+Steps to reproduce the problem:
+Compile and run the example.
+
+//
+using System;
+using System.Diagnostics;
+using System.Reflection;
+
+class Foo
+{
+  [STAThread]
+  static void Main(string[] args)
+  {
+    Foo f = new Foo();	
+    f.WhatsMyName();
+  }
+
+  private void WhatsMyName()
+  {
+    StackTrace stackTrace = new StackTrace();
+    StackFrame stackFrame = stackTrace.GetFrame(1);
+    MethodBase methodBaseCallee = stackFrame.GetMethod();
+    // Displays "Callee name: Main"
+    Console.WriteLine("Callee name: {0}", methodBaseCallee.Name);
+    
+    StackFrame stackFrameLocal = new StackFrame();
+    MethodBase methodBase = stackFrameLocal.GetMethod();
+    // Displays "Name of method: WhatsMyName"
+    Console.WriteLine("Name of method: {0}", methodBase.Name);
+  }
+}
+//
+
+Actual Results:
+On OS X I get a System.NullReferenceException, while on Windows and Linux I
+get the correct behaviour (i.e. the C.WriteLine() are written).
+
+Expected Results:
+Callee name: Main
+Name of method: WhatsMyName
+
+Additional Information:
+I copied the executable from Windows (compiled using csc and correctly
+running) to Linux and OS X, and ran it using mono (it fails on OS X but not
+on Linux).
+
+FYI:
+On OS X I use:
+Mono JIT compiler version 1.1.11, (C) 2002-2005 Novell, Inc and
+Contributors. www.mono-project.com
+        TLS:           normal
+        GC:            Included Boehm (with typed GC)
+        SIGSEGV      : normal
+
+On Linux I use:
+Mono JIT compiler version 1.1.9.2, (C) 2002-2005 Novell, Inc and
+Contributors. www.mono-project.com
+        TLS: normal 
+        GC: Included Boehm (with typed GC)
+        SIGSEGV : normal Globalization: normal
+
+And on Windows I use:
+Microsoft (R) Visual C# .NET Compiler version 7.10.6001.4
+for Microsoft (R) .NET Framework version 1.1.4322