Re: [Linux-abi-users] Problem with COFF binary on 2.6.x

[Anibal A. <deb...@gm...>]

Hi Alex. Thanks for the answer.

On 4/28/07, alex <ag...@us...> wrote:
> Hi Anibal,
>
> Can you provide more information please:
>
> 1) output of "modinfo coff/binfmt_coff.ko";

The output is:

For the kernel that is working:

 modinfo binfmt_coff
filename:    /lib/modules/2.4.20-4GB/kernel/fs/binfmt_coff.o
description: "Support for the SVR3 COFF binary format"
author:      "Al Longyear, Christoph Hellwig"
license:     "GPL"

For the kernel is not working  2.6.x (whatever), I always compiled
them as parted of kernel (not as module).

> 2) Linux Vendor name (i.e. Red Hat, Suze, Ubuntu);
Debian stable. I use the patches from the Linux-ABI project and some
vainilla kernel from kernel.org for every patch proved (2.6.x).

> 3) Trace of the application working on 2.4.x ("echo -1 > /proc/sys/abi/trace", etc...);

Please check them:
For 2.4.20 (working)
http://fixxxer.cc/pub/coff/log-2.4.20

For 2.6.16 (not working and the last proved, compiled static)
http://fixxxer.cc/pub/coff/log-2.6.16

> 4) Trace of the application misbehaving on 2.6.x ("en_tr", etc...);

I don't have this, the IBCS3.3 has other problems for me.

>
> I may need to look at your application if the above information is insufficient - you may wish to put it on you web-site and send me
> the link - or if you don't have a web-site ftp it to my server - but all this if I can't determine the problem otherwise.

if you want, the link to app is:
http://fixxxer.cc/pub/coff/pfsfmscst

But I think, it doesn't run because is a specific app. It need other
files and especial environment.

The problem is strange.  The app run, but for the same inputs gets
different outputs (for 2.4.20 and 2.6.x respectively).

>
> In general I would like you to compile iBCS-3.3 against the shipped Kernel (no other patches applied).

Yes, I proved so. But the IBCS3.3 has other problems, many others apps
not work :(

>
> Regards,
>
> Alex.
>

Regards.

Thanks

Anibal
>
> > -----Original Message-----
> > From: lin...@li...
> > [mailto:lin...@li...]On Behalf Of
> > Anibal Avelar
> > Sent: Saturday, 28 April 2007 07:07
> > To: lin...@li...
> > Subject: [Linux-abi-users] Problem with COFF binary on 2.6.x
> >
> >
> > Hi everybody
> >
> > I have a big problem with the Linux-ABI module.
> >
> > I use the Linux-ABI since it was implemented to 2.4.x kernel series.
> >
> > On 2.4.20 kernel all my apps works fine, but with the path for 2.6.x
> > (whatever, including the IBCS3.x) one app doesn't work.
> >
> > My file is:
> >
> > file  /usr/bin/ph/rpcost/pfsfmscst
> > /usr/bin/ph/rpcost/pfsfmscst: 80386 COFF executable
> >
> > I compiled the linux-ABI patch as part of kernel (not as module).
> >
> > The behavior is very strange.  I think the problem is the executable
> > COFF and how it was done (was done for SCO 3.2v4.2). It use many
> > UNION's and I detected it use Union's with anonymous structs.
> >
> > I found this:
> > [Bug c/13286] Union with anonymous struct as member in gcc3.3
> > http://gcc.gnu.org/ml/gcc-bugs/2003-12/msg00417.html
> >
> > [GCC C bug: sizeof a union of structs returns zero value]
> > http://gcc.gnu.org/ml/gcc-bugs/2004-12/msg02495.html
> >
> > The -pfs-extensions(microsoft extension) is the key.  In the compile
> > 2.95 that opcion comes by default. After was removed.
> >
> > I don't know if it opcion is the reeason, or mey be is other thing.
> > But my app does not work and I'm desperate.
> >
> > I tried all. I compiled the kernel with 3.2, 4.1 and 2.95 (inclusive)
> > but nothing happens. Al is the same. The app does not work.
> >
> > The logs with (trace active), looks exactly the same. But the result
> > is deferent (in the same machine).
> >
> > Thanks. I hope somebody can ell me something (any idea).
> >
> > Regards.



-- 
Anibal Avelar (FixXxeR) http://fixxxer.cc
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