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 Message-ID: <20021021165857.185716fb.ak03@gte.com> In-Reply-To: <200210212039.g9LKdMjS001116@elgar.kettenis.dyndns.org> References: <200210212039.g9LKdMjS001116@elgar.kettenis.dyndns.org>
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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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