Cross-architecture compiling

[Craig Rodrigues]

2011/11/23 Jan Dušátko <jan at dusatko.org>:
> 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.
>
> I did those steps bellow, but this not work. Can someone help me?
>
> 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"
>  export KERNCONF=""
>  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
>      cd etc
>      make distribution
>      mkdir $DESTDIR/boot
>      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


Hi,

I don't have experience setting up a cross-build environment for
FreeBSD, but you may want to read this:

http://bsdimp.blogspot.com/2006/09/cross-building-freebsd.html

However, I have more experience setting up PXE (TFTP + NFS) booting
systems of FreeBSD.  You should read this
document which I wrote:

http://www.freebsd.org/doc/handbook/network-pxe-nfs.html

-- 
Craig Rodrigues
rodrigc at crodrigues.org