Need help with StackAccessors needs to implement findProcInfo and putProcInfo

[Nurdin Premji <npremji@redhat.com>]

On the npremji-libunwind-20070228-branch

I've copied over the logic for the accessReg and accessMem accessor 
methods into StackAccessors. I have some work on the getProcName method 
using dwfl_addrname.

I now need to create logic for findProcInfo and putProcInfo methods.

I will not be able to use any of the libunwind UPT ptrace accessor 
methods as the PtraceAccessors class uses a proxy address space so it 
can call other accessor methods. The problem with this is that it seems 
as though findProcInfo calls accessMem, which won't work because it 
isn't being called in the thread that did the ptrace attach.

In short I need to implement findProcInfo and putProcInfo without 
relying on the UPT methods of the same name and I'm not sure what is 
involved in this.