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| Use only as much space as necessary. This includes no portage nor gcc install on target system (ipaq). The idea is to fully cross-compile the system for ipaq on a i686 host into a subdir (using the ${ROOT} portage feature) and create a jffs2 image which will be uploaded to the ipaq (leter updates will be done over nfs-mounted root). | Use only as much space as necessary. This includes no portage nor gcc install on target system (ipaq). The idea is to fully cross-compile the system for ipaq on a i686 host into a subdir (using the ${ROOT} portage feature) and create a jffs2 image which will be uploaded to the ipaq (later updates will be done over nfs-mounted root). |
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| It's best if you write this to a script or so... | It's best if you write this to a script... First, we need the tools for cross-compiling... |
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| Prepare the destination directory... {{{ mkdir /tmp/ipaq }}} Now, we can start building the target system... {{{ |
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== Vapier's achievements == * http://dev.gentoo.org/~vapier/CROSS-COMPILE-HOWTO * http://dev.gentoo.org/~vapier/CROSS-COMPILE-SYSTEM == Other links == * http://gentoo-wiki.com/Embedded_Gentoo * http://www.yargybot.com/Familiar/MMCFilesystem.html |
The idea
Use only as much space as necessary. This includes no portage nor gcc install on target system (ipaq). The idea is to fully cross-compile the system for ipaq on a i686 host into a subdir (using the ${ROOT} portage feature) and create a jffs2 image which will be uploaded to the ipaq (later updates will be done over nfs-mounted root).
The steps
It's best if you write this to a script...
First, we need the tools for cross-compiling...
emerge crossdev crossdev --target arm-unknown-linux-gnu
Prepare the destination directory...
mkdir /tmp/ipaq
Now, we can start building the target system...
export ARCH="arm"
export ACCEPT_KEYWORDS="arm"
export CHOST="arm-unknown-linux-gnu"
export CBUILD="i686-pc-linux-gnu"
export CFLAGS="-O2 -pipe"
export CXXFLAGS=${CFLAGS}
export ROOT="/tmp/ipaq"
export USE="-*"
export FEATURES="-distcc"
export CONFIG_PROTECT="-* ${ROOT}/etc"
### Bootstrap ###
USE="bootstrap build" emerge sysvinit
USE="bootstrap build" emerge baselayout
emerge sys-kernel/linux-headers
USE="bootstrap build" emerge sys-libs/glibc
Vapier's achievements