About 32bit binary on amd64

[Kostik Belousov]

On Mon, May 24, 2010 at 06:58:56PM +0900, Kohji Okuno wrote:
> Thank you for your comments.
> 
> In my usage, it works good by the patch appended to this mail.
The patch is probably a start in the right direction. But, it would be
much better to install sys/i386/include to e.g. /usr/include/machine32
and use the pristine i386 files instead of copying them.

Are you interested in going further with the approach ?

Thanks.
> 
> > On May 24, 2010, at 2:49 AM, pluknet wrote:
> > 
> >> On 24 May 2010 08:49, Kohji Okuno <okuno.kohji at jp.panasonic.com> wrote:
> >>> Hi all,
> >>> 
> >>> I want to compile 32bit binary on amd64, but I met with the problem.
> >>> Could you teach me the best solution, please?
> >>> 
> >>> 
> >>> My environment is FreeBSD 8.1-PRERELEASE #0: Tue May 18 12:01:26 JST 2010.
> >>> 
> >>> I compiled and executed test.c as below on amd64.
> >>> 
> >> [...]
> >>> 
> >>> % gcc -m32 -B/usr/lib32 test.c
> >>> % ./a.out
> >>> mmap: Invalid argument
> >> 
> >> AFAIK, it still doesn't work on FreeBSD. You need something like 32bit
> >> chroot environment.
> >> There's also about:
> >> http://www.freebsd.org/projects/ideas/#p-freebsd-amd64-gcc-m32
> > 
> > -m32 is busted on FreeBSD; I don't remember the full details but I think it had something to do with the linking stage of things...
> > Thanks,
> > -Garrett


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