From owner-freebsd-arch  Mon Oct 21 13:59: 6 2002
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Date: Mon, 21 Oct 2002 16:58:57 -0400
From: Alexander Kabaev <ak03@gte.com>
To: Mark Kettenis <kettenis@chello.nl>
Cc: freebsd-arch@FreeBSD.ORG
Subject: Re: ptrace(2) and vector registers
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On Mon, 21 Oct 2002 22:39:22 +0200 (CEST)
Mark Kettenis <kettenis@chello.nl> wrote:

> s.
> 
>  NetBSD already has support for the SSE registers.  There is `struct
>  xmmregs' in <machine/reg.h> and PT_GETXMMREGS & PT_SETXMMREGS
>  reequests in <machine/ptrace.h>.  I have to say that I'm not terribly
>  happy with `struct xmmregs', since it ends with an 's', where the
>  other structs in <machine/ptrace.h> (`struct reg' and `struct fpreg')
>  don't.  But the most inportant thing is that these names are tied to
>  the x86.  Since both SSE and AltiVec are some sort of vector registers
>  I'd like to propose `struct vreg' and PT_GETVREGS & PT_SETVREGS as
>  alternatives.  NetBSD/powerpc already defines `struct vreg'.

Please take a look at linux_ptrace.c. I tried to support Linux-specific
PTRACE_{GET|SET}FPXREGS calls there. We might want to simply reuse that for
FreeBSD syscall.

-- 
Alexander Kabaev

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