https://bugzilla.novell.com/show_bug.cgi?id=367665
Summary: Stack walking is incorrect when a native method is on
the stack
Product: Mono: Runtime
Version: 1.9.0
Platform: Other
OS/Version: Windows Vista
Status: NEW
Severity: Normal
Priority: P5 - None
Component: JIT
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
QAContact: [email protected]
Found By: ---
The following program is not a full repro of what I'm seeing (because in my
case a managed method is actually disappearing from the call stack), but it
does show that something is wrong, because you'll see the Foo method show up
twice. If you comment out the calli and uncomment the call, you'll see the
InternalInvoke method show up twice.
using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.InteropServices;
public class Program
{
static System.Threading.ThreadStart del = Foo;
static void Main()
{
AssemblyBuilder ab =
AppDomain.CurrentDomain.DefineDynamicAssembly(new AssemblyName("foo"),
AssemblyBuilderAccess.Run);
ModuleBuilder modb = ab.DefineDynamicModule("foo.dll");
TypeBuilder tb = modb.DefineType("Foo");
MethodBuilder mb = tb.DefineMethod("Frub",
MethodAttributes.Static, null, new Type[] { typeof(IntPtr) });
mb.SetImplementationFlags(MethodImplAttributes.NoInlining);
ILGenerator ilgen = mb.GetILGenerator();
ilgen.Emit(OpCodes.Ldarg_0);
ilgen.EmitCalli(OpCodes.Calli, CallingConvention.StdCall,
typeof(void), Type.EmptyTypes);
//ilgen.Emit(OpCodes.Call, typeof(Program).GetMethod("Foo"));
ilgen.Emit(OpCodes.Ret);
Type type = tb.CreateType();
type.GetMethod("Frub", BindingFlags.NonPublic |
BindingFlags.Static)
.Invoke(null, new object[] {
Marshal.GetFunctionPointerForDelegate(del) });
}
public static void Foo()
{
for (int i = 0; i < 4; i++)
{
MethodBase m = new
System.Diagnostics.StackFrame(i).GetMethod();
Console.WriteLine(m.DeclaringType.Name + "::" +
m.Name);
}
}
}
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