mono/samples/size

* Size sample

This sample provides a new internal call that can be used to
obtain the size of an object and all of the referenced objects
that this object holds.

This is exposed in the method:

int Mono.ObjectServices.ObjectInspector.GetMemoryUsage (object x)

Available in the objectinspector.dll file; To use this, you
must run Mono with the --profile=size argument (and have the
libmono-profile-size.so module in your path).

* Inner Details.

This implementation used a profiler hook at jit-end to install
a new internal call, and exposes a small DLL
(objectinspector.dll).

There is no need to use the profiler, the method body that
does the object size computation can be copy/pasted elsewhere,
particularly on embedded uses of Mono.