[ninux-research] Fwd: Re: [Confine-devel] 64-bit support

[Claudio Pisa]

Ciao.
Sembra che OpenWRT barrier breaker (e quindi anche l'ultimo firmware di
CONFINE) non supporti i 64 bit :/

Clauz


-------- Forwarded Message --------
Subject: Re: [Confine-devel] 64-bit support
Date: Wed, 13 May 2015 19:33:35 +0200
From: Pau <pau at dabax.net>
To: confine-devel at lists.confine-project.eu

It seems that OpenWRT Barrier Braker does not have 64 bit support but
Chaos Calmer does. I've verified it but not compiled.

Remember that Chaos Calmer is still not a release.

Cheers.

On 13/05/15 14:44, Ivan Vilata i Balaguer wrote:
> Hi, today I gave a try to building ``confine-dist`` with 64-bit support
> (at least in the kernel) so that we can use 64-bit slivers to ease
> running programs built on researchers' computers.
> 
> I followed the [instructions][1] at first by using ``SPECIFICS=atom32``
> but still enabling 64-bit kernel in ``make kernel_menuconfig``.
> However this results in:
> 
>     make[6]: Entering directory `/home/ivan/vc/git/confine-dist/openwrt/build_dir/target-i386_i486_uClibc-0.9.33.2/linux-x86_generic/linux-3.10.49'
>     make[7]: Nothing to be done for `all'.
>       CHK     include/generated/uapi/linux/version.h
>       CHK     include/generated/utsrelease.h
>       CC      scripts/mod/empty.o
>     scripts/mod/empty.c:1:0: error: code model 'kernel' not supported in the 32 bit mode
>      /* empty file to figure out endianness / word size */
>      ^
>     scripts/mod/empty.c:1:0: sorry, unimplemented: 64-bit mode not compiled in
>     make[8]: *** [scripts/mod/empty.o] Error 1
>     make[7]: *** [scripts/mod] Error 2
>     make[6]: *** [scripts] Error 2
> 
> In ``make menuconfig`` I saw that there's no ``x86_64`` target.
> A ``make TARGET=x86_64`` fails with ``error: pathspec
> 'target/linux/x86_64/config-3.10' did not match any file(s) known to
> git.``.  However Jow [mentioned][2] that he was able to boot the
> ``x86_64`` target.
> 
> Is there something I'm missing here?  Maybe Barrier Breaker (or its
> Buildroot) doesn't support building a 64-bit kernel?
> 
> Thanks a lot!
> 
> [1]: https://wiki.confine-project.eu/soft:howto-compile-confine
> [2]: http://comments.gmane.org/gmane.comp.embedded.openwrt.devel/30956
> 

-- 
./p4u




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