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Re: fp update for embedded x86 config



In my vague and undetailed understanding, this patch is currently a
no-op, since tm-i386v.h defines its own registers.  And even if we
delete the register definitions from tm-i386v.h (which I think we
should), the behavior of the embedded target will be unchanged, since
tm-i386.h defines only the general purpose registers by default.  I
don't expect that to change in the future.

Am I missing something?  What are the details?  What's the intent?

> 1999-11-12  J.T. Conklin  <jtc@redback.com>
> 
> 	* config/i386/tm-embed.h: New file.
> 	* config/i386/embed.mt: Updated to use tm-embed.h.
> 
> Index: gdb/gdb/config/i386/embed.mt
> diff -c gdb/gdb/config/i386/embed.mt:1.1.1.1 gdb/gdb/config/i386/embed.mt:1.2
> *** gdb/gdb/config/i386/embed.mt:1.1.1.1	Tue Aug 17 16:52:14 1999
> --- gdb/gdb/config/i386/embed.mt	Fri Nov 12 11:48:31 1999
> ***************
> *** 1,3 ****
>   # Target: Embedded Intel 386 
>   TDEPFILES= i386-tdep.o i387-tdep.o
> ! TM_FILE= tm-i386v.h
> --- 1,3 ----
>   # Target: Embedded Intel 386 
>   TDEPFILES= i386-tdep.o i387-tdep.o
> ! TM_FILE= tm-embed.h
> Index: gdb/gdb/config/i386/tm-embed.h
> diff -c /dev/null gdb/gdb/config/i386/tm-embed.h:1.1
> *** /dev/null	Fri Nov 12 11:49:47 1999
> --- gdb/gdb/config/i386/tm-embed.h	Fri Nov 12 11:48:31 1999
> ***************
> *** 0 ****
> --- 1,35 ----
> + /* Target machine description for embedded 80[3456]86,
> +    for GDB, the GNU debugger.
> +    Copyright (C) 1999 Free Software Foundation, Inc.
> + 
> +    This file is part of GDB.
> + 
> +    This program is free software; you can redistribute it and/or modify
> +    it under the terms of the GNU General Public License as published by
> +    the Free Software Foundation; either version 2 of the License, or
> +    (at your option) any later version.
> + 
> +    This program is distributed in the hope that it will be useful,
> +    but WITHOUT ANY WARRANTY; without even the implied warranty of
> +    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +    GNU General Public License for more details.
> + 
> +    You should have received a copy of the GNU General Public License
> +    along with this program; if not, write to the Free Software
> +    Foundation, Inc., 59 Temple Place - Suite 330,
> +    Boston, MA 02111-1307, USA.  */
> + 
> + #ifndef TM_EMBED_H
> + #define TM_EMBED_H
> + 
> + /* Because GDB's embedded x86 targets did not support floating point 
> +    registers before the x86 FP support reorganization effort, it seems
> +    prudent to continue doing the same until a mechanism is in place to 
> +    select processor type at run time. */
> + 
> + #undef HAVE_I387_REGS
> + #undef HAVE_SSE_REGS
> + 
> + #include "i386/tm-i386v.h"
> + 
> + #endif /* ifndef TM_EMBED_H */
> 
> 
> -- 
> J.T. Conklin
> RedBack Networks
> 

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