[patch] add target Score to GDB

[秦巍]

Sorry Jim i didn't reply you yesterday for the reason that i can't 
checkout the 
current cvs caused by our network.

> Jim Blandy <jimb@codesourcery.com> wrote on 2006-12-08 04:19:03:

> >> Does score_integer_to_address do exactly the same thing that GCC does
> >> when the user casts an integer to an address?  If they don't, then 
the
> >> user could become quite confused when GDB and GCC evaluate their
> >> expressions differently.
> >
> > I didn't see clearly about this hook when i was porting score gdb.
> > I have seen your NOTES in 'value_as_address'.
> > The pointer and the address are the same on score target, 
> > and a pointer to a function always points to the entry point address 
of 
> > that function.
> > So we don't need to implement this hook. Can i say that?
> 
> If you don't need to set it to get clean test suite results, then I
> would definitely recommend leaving it out.

I will leave it out.

> Please keep all lines under 80 characters in length; for example,
> score_unwind_dummy_id needs to be reformatted.
> 
> I'm surprised by score_type_needs_double_align --- is it really true
> that struct types only need double alignment if their *first* member
> does?  Why is that?  I'd expect the code for structs and unions to be
> the same.

I have modified that.

> There should be patches to Makefile.in; could you post those?  We need
> to see the complete patch in order to approve it.
> 
> All changes need a ChangeLog entry.  You don't need to say much for
> score-tdep.c and score-tdep.h; here's the entry for the xtensa port:
> 
> 2006-11-14  Maxim Grigoriev  <maxim@tensilica.com>
> 
>    * NEWS: New port to Xtensa.
>    * Makefile.in: Add dependencies for Xtensa files.
>    * configure.tgt (xtensa*, xtensa*-*-elf*): New.
>    * configure.host (xtensa*-*-elf*): New.
>    * config/xtensa/xtensa.mt: New file.
>    * xtensa-config.c: New file.
>    * xtensa-tdep.h: New file.
>    * xtensa-tdep.c: New file.
> 
> (I would prefer that the Makefile.in entry actually listed the
> variables and rules added.)
> 
> Other than that, this looks good.  Please post a complete patch,
> generated against the current CVS sources, and with a ChangeLog entry,
> for a final review, and then we'll get it committed.

I have added S+core target to ChangeLog and dependencies to Makefile.in.
The following is a complete patch. Thanks for checking it!

Best regards,
Qinwei
Mail  qinwei@sunnorth.com.cn
Phone +86-010-62981668-2708
Fax   +86-010-62985972

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