feature request: mmap support

[Howard Chu]

On Linux, mmap'd files aren't included in the contents of a core dump. That's all
great, because it'd just be writing out data that's already on the filesystem anyway.

But when attaching to the core file, addresses that would have resided in the mmap'd
file are all inaccessible/invalid. It would be nice to have a command to attach
mmap'd files to their respective virtual address in the coredump.
-- 
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/