Date: Tue, 2 Jun 2009 22:38:31 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: David Xu <davidxu@freebsd.org> Cc: freebsd-amd64@freebsd.org Subject: Re: gcc -m32 and int64_t Message-ID: <20090603053831.GA35940@troutmask.apl.washington.edu> In-Reply-To: <20090603044320.GA35526@troutmask.apl.washington.edu> References: <4A25F31D.4040201@freebsd.org> <20090603044320.GA35526@troutmask.apl.washington.edu>
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On Tue, Jun 02, 2009 at 09:43:20PM -0700, Steve Kargl wrote:
> On Wed, Jun 03, 2009 at 11:50:53AM +0800, David Xu wrote:
> > It seems there is a problem in /sys/am64/_types.h when cross-compiling a
> > 32-bit code in amd64 machine, the following code prints 4 instead of 8:
> >
> > /* int64_size.c */
> >
> > #include <sys/types.h>
> > #include <stdio.h>
> >
> > int main()
> > {
> > printf("%d\n", sizeof(int64_t));
> > return (0);
> > }
> >
> >
> > $cc -m32 -o int64_size -B /usr/lib32/ int64_size.c
> > $./int64_size
> > 4
> >
>
> IIRC, the c compiler in the base system isn't setup
> to be a cross-compiler. So, there are probably many
> more problems than the one shown above. Peter Wemm
> has posted about this previously.
>
For more info, see
http://www.freebsd.org/cgi/query-pr.cgi?pr=gnu/112215
--
Steve
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