Date: Fri, 11 Jan 2002 16:11:36 -0800 From: Peter Wemm <peter@wemm.org> To: Terry Lambert <tlambert2@mindspring.com> Cc: Dan Eischen <eischen@vigrid.com>, Nate Williams <nate@yogotech.com>, Daniel Eischen <eischen@pcnet1.pcnet.com>, Archie Cobbs <archie@dellroad.org>, Alfred Perlstein <bright@mu.org>, arch@FreeBSD.ORG Subject: Re: Request for review: getcontext, setcontext, etc Message-ID: <20020112001136.5BA6C38FD@overcee.netplex.com.au> In-Reply-To: <3C3DE891.99C85D24@mindspring.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Terry Lambert wrote: > Dan Eischen wrote: > > I think we determined that the only time we care about the FP state is > > when sending a signal. In that case, the kernel should know how to > > get the FPU state and copy it out to the context. If there are > > different FPU formats, there is a flags word that can be set accordingly > > and the userland setcontext() can be made to account for different > > floating point formats. > > > > Currently the kernel doesn't save the FPU state in the sigcontext, > > but it should. Wouldn't this solve the problem? > > What problem? > > Using FP code in signal handlers isn't legal. Why does everyone > want to do Bezier curves in signal handlers? It is on IA64. It is the only way to do multiply and divide. Cheers, -Peter -- Peter Wemm - peter@FreeBSD.org; peter@yahoo-inc.com; peter@netplex.com.au "All of this is for nothing if we don't go to the stars" - JMS/B5 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20020112001136.5BA6C38FD>