Re: x86_64 config files

[Andreas Jaeger <aj@suse.de>]

Jiri Smid <smid@suse.cz> writes:

>   Hi,
> 
>   There are config files for AMD x86_64 architecture. The config headers
> include i386 stuff and redefine some parts. In this first version there are
> redefined registers.
> 
> 
> diff -uNr gdb.orig/gdb/config/i386/nm-x86_64.h gdb/gdb/config/i386/nm-x86_64.h
> --- gdb.orig/gdb/config/i386/nm-x86_64.h	Thu Jan  1 01:00:00 1970
> +++ gdb/gdb/config/i386/nm-x86_64.h	Thu Apr  5 11:17:38 2001
> @@ -0,0 +1,28 @@
> +/* Native support for Linux/x86_64.

Just a minor nit: The architecture is called x86-64.  Since
config.guess can't handle this we normally use x86_64.  But
documentation should always use the hyphen for x86-64.
> +/* Although the x86_64 extended floating-point has only 80 significant
> +   bits, a `long double' actually takes up 128, probably to enforce
> +   alignment.  */

remove the probably, your guess is right.
> +/* Number of SSE registers.  */
> +#ifdef HAVE_SSE2_REGS
> +#undef  NUM_SSE_REGS
> +#define NUM_SSE_REGS (17)
> +#endif

x86-64 has 16 SSE registers.

Thanks,
Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj