Re: Cross-architecture compiling

From: Boris Samorodov <bsam_at_passap.ru>
Date: Wed, 23 Nov 2011 23:16:10 +0400
Hi All,

23.11.2011 18:37, Jan Dušátko пишет:
> Hi,
> 
> I would like to ask people in this conference for advice regards
> cross-architecture compiling.
> Right now I have 32-bit system, where I need to boot over TFTP/NFS diferrent
> architectures (i386/AMD64). I need to populate appropriate directory
> structure using some "generalized" kernel configuration, each platform have
> thein own kernel.conf.

At my previous $JOB we configured an amd64 system to load i386 diskless
stations.

> I did those steps bellow, but this not work. Can someone help me?

"Not work" is not a diagnostic message. Please, be more specific here.

> Regards
> 
> Jan  
> 
> 
> #!bin/sh
> export CC="/usr/cross/usr/bin/gcc"
>  export AS="/usr/cross/usr/bin/as"
>  export NM="/usr/cross/usr/bin/nm"
>  export RANLIB=/usr/cross/usr/bin/ranlib"
>  export LD="/usr/cross/usr/bin/ld"
>  export OBJCOPY="/usr/cross/usr/bin/objcopy"
>  export SIZE="/usr/cross/usr/bin/size"
>  export CPUTYPE="native"

I'm not sure if those varialbes are needed.

>  export KERNCONF=""

Well, does this really work? Is it the same as KERNCONF=GENERIC?
Not sure.

>  for TARGET_ARCH in i386 amd64
>  do
>       export MACHINE=${TARGET_ARCH}
>       export MACHINE_ARCH=${TARGET_ARCH}
>       export DESTDIR="/pxeboot/diskless/${TARGET_ARCH}"
>       mkdir $DESTDIR
>       mkdir -p ${DESTDIR}usr/bin
>       mkdir -p ${DESTDIR}usr/lib
>       mkdir -p ${DESTDIR}usr/include
>       mkdir -p ${DESTDIR}usr/share/man/man1
>       mkdir -p ${DESTDIR}usr/share/info
>       mkdir -p ${DESTDIR}usr/libdata/ldscripts 
>       mkdir -p ${DESTDIR}usr/libexec
>       cd /usr/obj
>       rm -rf usr
>       cd /usr/src
>       make world TARGET_ARCH=$TARGET_ARCH TOOLS_PREFIX=$DESTDIR
> DESTDIR=$DESTDIR install
>       make kernel TARGET_ARCH=$TARGET_ARCH TOOLS_PREFIX=$DESTDIR
> DESTDIR=$DESTDIR install

I'm not sure about TOOLS_PREFIX (do not recall we used it).

>       cd etc

I'd say this is not needed.

>       make distribution

And that should be "make distribution DESTDIR=$DESTDIR".

>       mkdir $DESTDIR/boot

That directory should already present.
And the rest I don't understand (may be OK).

>       cp /boot/device.hints $DESTDIR/boot
>  done
>  mkdir -p /pxeboot/diskless/conf/default/etc
>  ln -s /pxeboot/diskless/conf/default /pxeboot/diskless/i386/conf/default
>  ln -s /pxeboot/diskless/conf/default /pxeboot/diskless/amd64/conf/default

-- 
WBR, Boris Samorodov (bsam)
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve
Received on Wed Nov 23 2011 - 18:16:13 UTC

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