amd64/164425: stat function doesn't 32bit mode on amd64

[Christian Jullien]

Thanks for the reply.
In that case, you must admit it is strange that gcc on FreeBSD amd64 has
a-m32 support which does not work!

I see two options that work equally well for me:
- remove -m32 option on gcc amd64, distro will reduce
- add /usr/include32 which gcc will use instead of /usr/include in case -m32
is passed (or something similar)

NetBSD requires a 32bit OS version to compile and use 32bit programs. At
least it is clear.

Christian 

-----Original Message-----
From: John Baldwin [mailto:jhb at freebsd.org] 
Sent: mercredi 25 janvier 2012 14:37
To: freebsd-amd64 at freebsd.org
Cc: C. Jullien; freebsd-gnats-submit at freebsd.org
Subject: Re: amd64/164425: stat function doesn't 32bit mode on amd64

On Monday, January 23, 2012 5:17:11 pm C. Jullien wrote:
> 
> >Number:         164425
> >Category:       amd64
> >Synopsis:       stat function doesn't 32bit mode on amd64
> >Confidential:   no
> >Severity:       critical
> >Priority:       low
> >Responsible:    freebsd-amd64
> >State:          open
> >Quarter:        
> >Keywords:       
> >Date-Required:
> >Class:          sw-bug
> >Submitter-Id:   current-users
> >Arrival-Date:   Mon Jan 23 22:20:03 UTC 2012
> >Closed-Date:
> >Last-Modified:
> >Originator:     C. Jullien
> >Release:        8.1 and 9.0
> >Organization:
> Eligis
> >Environment:
> FreeBSD freebsd.eligis.com 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan  
> 3
07:46:
> 30 UTC 2012     root at farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC

amd64
> >Description:
> A friend of mine also confirmed this issue I discovered at least on 
> 8.1 and
is still present on 9.0-RELEASE.
> 
> The problem is that, when compiled on amd64 but for i686 target, stat
function hangs with a core dump.
> 
> $ gcc -m32 -DCOMPAT_32BIT -L/usr/lib32 -B/usr/lib32
> 
> I don't see where I'm wrong but can't imagine I'm the only one having 
> this
issue.

Yes, -m32 doesn't work currently as it uses the wrong set of headers
(/usr/include/machine references amd64 headers, not i386 headers).

--
John Baldwin