GDB / GDBserver feature parity

[Pedro Alves <palves@redhat.com>]

Just a short note that I've been, and will for a while be working on
local/remote debugging feature parity.

See <http://sourceware.org/gdb/wiki/LocalRemoteFeatureParity>.

" GDBserver supports features native debugging does not support. Native debugging supports
  features GDBserver does not support.

  The aim of this project is bridging the gap between both worlds.

  Neither target backend is a superset of the other currently. A secondary goal of this project
  is making it possible to share a single target backend between native debugging and
  GDBserver (on GNU/Linux at first), by making the GDBserver backend support all of GDB's
  native backend's features (and more).
"

I've identified features that either of the local and gdbserver backends support
that the other doesn't.  Please do feel free to add new points to the
tables/lists in the wiki above, and, help with the coding, of course.
Any kind of help is most welcome!

This is a step towards support for parallel distributed debugging
(programs that run on multiple machines controlled by a single gdb).

-- 
Pedro Alves