From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Tue, 13 Sep 2016 13:39:25 +0000 (UTC)
From: Frederik Bayart <frederik_bayart@yahoo.co.uk>
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Subject: Re: [Xenomai] multiarch on ipipe kernel
Reply-To: Frederik Bayart <frederik_bayart@yahoo.co.uk>
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To: "xenomai@xenomai.org" <xenomai@xenomai.org>

CONFIG_IA32_EMULATION is indeed not set.
I will try to test it this week and let you know whether this was the cause=
.
Thank you very much for the help,
Frederik=20

    On Tuesday, 13 September 2016, 15:11, Henning Schild <henning.schild@si=
emens.com> wrote:
=20

 Do you have CONFIG_IA32_EMULATION set in your ipipe kernel?

Henning

Am Tue, 13 Sep 2016 12:26:33 +0000
schrieb Frederik Bayart <frederik_bayart@yahoo.co.uk>:

> Should it be possible to run an 32 bit non-rt binary on a 64 bit
> ipipe kernel ? I'm using debian jessie amd64 and xenomai 2.6.4 on
> kernel 3.18.20
>=20
> I have added i386 as foreing architecture and installed the i386
> toolchain $ dpkg --print-architectureamd64s$ dpkg
> --print-foreign-architecturesi386 I have a small hello world binary
>=20
> #include <stdio.h>
> int main(int argc, char* argv[]){=C2=A0 printf("hello world\n");=C2=A0 re=
turn
> 0;} I compile with=C2=A0
> gcc -m32 -o hello hello.c
> This binary runs on the normal (non-ipipe) kernel
> linux-image-3.16.0-4-amd64.But if I'm booting the ipipe kernel on the
> same system, I get the error : -bash: ./hello: cannot execute binary
> file: Exec format error So the problem seems to be related to the
> kernel. But I didn't find whether a kernel option could be the cause.
> The kernel was prepared with=C2=A0I only found that you can't run 32 bit
> xenomai libraries on a 64 bit kernel, but this binary is not using
> these libraries. Kind regards, Frederik
>=20
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  =20