Date: Sat, 07 Dec 2002 15:17:53 -0800 From: Peter Wemm <peter@wemm.org> To: Marcel Moolenaar <marcel@xcllnt.net> Cc: re-builders@FreeBSD.org Subject: Re: ia64 RC1 finished Message-ID: <20021207231753.468342A7EA@canning.wemm.org> In-Reply-To: <20021207215138.GA1289@athlon.pn.xcllnt.net>
next in thread | previous in thread | raw e-mail | index | archive | help
Marcel Moolenaar wrote:
> On Sat, Dec 07, 2002 at 11:11:01AM -0800, Peter Wemm wrote:
> >
> > None of our other 64 bit platforms do this. It seems that on sparc64 and
> > alpha, the called function does any truncation and otherwise returns in a 6
4
> > bit register. On ia64 though, the calling function does the truncation and
> > extension. eg: it takes the "int" result from malloc and zeroes out
> > bits 32-63 to "extend" it to a 64 bit pointer.
>
> ... and this invariably turns a perfectly valid region 2 or 3 address
> into a perfectly invalid region 0 address... :-(
Yeah.
> > There are lots and lots and lots of ports that simply do the cast like in
> > the example above rather than try and get the includes right. I suspect
> > this is going to hurt ia64 a lot more more than time_t stuff. :-(
>
> It's not to late to abandon this ship and work on AMD x86_64
> instead :-/
>
> I don't think that WARNS=berserk will help. It will only result in
> massive compilation failures and an unimaginable huge amount of
> patching. Just too much work.
Actually, I'd half like to make the "assigning pointer from different sized
integer" and/or "casting to pointer from integer of different size"
warnings become *fatal* errors. Catch the problem at the source. Right
now its a warning that is invariably ignored and moves the failure from
compile time to run time. I'd rather have a failed package build than ship
a binary that doesn't work.
Cheers,
-Peter
--
Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com
"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-ia64" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20021207231753.468342A7EA>