[RFC/RFA] new command: maintenance print target-stack

[Joel Brobecker <brobecker at adacore dot com>]

Hello,

While working to "auto-solib-add", I found that I was very frequently
in need to dumping the current target stack (I just need the names),
to see if the multi-thread layer has been pushed or not. So I
implemented a new "maintenance" command, hoping that others might
find it useful.

        (gdb) maintenance print target-stack 
        The current target stack is:
          - multi-thread (multi-threaded child process.)
          - child (Unix child process)
          - exec (Local exec file)
          - None (None)

Opinions? Eventually, we might want to actually dump more
information if that's useful to others, but that's a start.

2006-10-17  Joel Brobecker  <brobecker@adacore.com>

        * target.c (maintenance_print_target_stack): New function.
        (initialize_targets): Add new "maintenance print target-stack"
        command.

Tested on x86-linux just to make sure, no regression. I will of course
provide documentation for this if the idea is accepted.

-- 
Joel

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