Date: Thu, 28 May 1998 02:34:36 +0200 (SAT) From: Robert Nordier <rnordier@nordier.com> To: eivind@yes.no (Eivind Eklund) Cc: rnordier@nordier.com, current@FreeBSD.ORG Subject: Re: Replacing gcc as the system compiler (was Re: Fix for undefined "__error" and discussion of shared object versioning) Message-ID: <199805280034.CAA17560@ceia.nordier.com> In-Reply-To: <19980527225647.36082@follo.net> from Eivind Eklund at "May 27, 98 10:56:47 pm"
next in thread | previous in thread | raw e-mail | index | archive | help
Eivind Eklund wrote:
> On Wed, May 27, 1998 at 10:04:11PM +0200, Robert Nordier wrote:
> > You may need -ltdf during linking.
>
> What does this contain?
Pretty much just 64-bit integer support.
>
> Have you looked closely at XANDF? I'm seeing two real hurdles (beyond
> inertia) in using this as our main compiler: The use of asm() for some
> macros in the kernel, and the use of linker sets. What do you think
> our chance of working around these are?
I think we can find reasonable ways over the technical hurdles.
Possibly, though, we need to commit to supporting TenDRA as a secondary
compiler initially, with a change 6-12 months down the line, if things
work out.
>From a few tests here, it is starting to look as though the trans386
optimization needs additional work. I know that some of the code I
haved looked at was highly-optimized, so the slow times may be fairly
readily correctable.
>
> > There is currently an unresolved bug in i386 long long support: avoid
> > casting to long long.
>
> There is also what looks like a bug in handling of NULL - it doesn't
> allow the use of ((void *)0) as NULL for function pointers.
>
> I may remember the C standard incorrectly (I haven't looked it up),
> but I think it is required to.
There is something strange there (even the error message looks wrong):
Can't convert function pointer 'void *' to non-function pointer
'int ( * ) ( void )'.
--
Robert Nordier
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199805280034.CAA17560>