+ gboolean call_contexts;
+ void (*context_enable) (void);
+ gpointer (*context_get_this) (MonoProfilerCallContext *);
+ gpointer (*context_get_argument) (MonoProfilerCallContext *, guint32);
+ gpointer (*context_get_local) (MonoProfilerCallContext *, guint32);
+ gpointer (*context_get_result) (MonoProfilerCallContext *);
+ gpointer (*context_free_buffer) (gpointer);
+