[Mono-dev] runtime dbg library API proposal/impl

Martin Baulig martin at ximian.com
Wed Dec 5 17:17:00 EST 2007

Attached is a new API which actually works.

There are two parts - an unmanaged library in mono/mini/ and a managed
API in class/Mono.Runtime.DebuggerSupport.  This has the advantage that
we will already catch API changes at compilation time instead of getting
DllImport-errors or even crashes at runtime.

We can also modify the delegate if necessary, maybe store it internally
and add an `ITargetMemoryAccess' argument or something like that.

There is just one important thing to keep in mind:

> public TargetAddress MonoClassGetMonoImage (ITargetMemoryAccess memory,
>                                             TargetAddress klass)
>                 {
>                         IntPtr image = mono_debugger_support_mono_class_get_image (
>                                 memory.ReadMemory, klass.Address);
>                         return new TargetAddress (image);
>                 }

You have to use the `memory' instance to read memory (we may add other
methods to it if necessary) - but you do not "own" it.  It is absolutely
forbidden to store this anywhere or use it after the method returned
control back to the debugger.

Martin Baulig - martin at novell.com
Novell GmbH, Düsseldorf
GF: Volker Smid, Djamel Souici; HRB 21108 (AG Düsseldorf)

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