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| = Gentoo On iPaq = |
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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 tu fully cross-compile the system for ipaq on a i686 host into a subdir and create a jffs2 image which will be uploaded to the ipaq. | Use only as little 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). /!\ UPDATE: Now that the handhelds.org 2.6 kernel can boot right from SD, we don't need to bother with creating the jffs2 image. <<GoogleAd>> |
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It's best if you write this to a script... First, we need the tools for cross-compiling... |
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| If the above fails, try with safer versions... {{{ crossdev -t arm-unknown-linux-gnu --g 3.4.6 --l 2.3.6-r3 }}} If this fails complaining kernel headers are too old, do the following quick hack (see [[http://forums.gentoo.org/viewtopic-t-452498.html|this forum]] for more info... {{{ ln -s /usr/arm-unknown-linux-gnu/usr/include/ /usr/arm-unknown-linux-gnu/include mkdir /usr/arm-unknown-linux-gnu/usr/arm-unknown-linux-gnu ln -s /usr/arm-unknown-linux-gnu/lib/ /usr/arm-unknown-linux-gnu/usr/arm-unknown-linux-gnu/lib }}} Now you should have the complete cross-compiler (with C++) support ready. If not, don't bother to continue... Prepare the destination directory... {{{ mkdir /tmp/ipaq }}} Now, we can start building the target system... {{{ |
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| export ACCEPT_KEYWORDS="arm" | export ACCEPT_KEYWORDS="-* arm" |
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| USE="bootstrap build" emerge sysvinit USE="bootstrap build" emerge baselayout emerge sys-kernel/linux-headers USE="bootstrap build" emerge sys-libs/glibc |
USE="bootstrap build" emerge sysvinit -1 USE="bootstrap build" emerge baselayout -1 emerge sys-kernel/linux-headers -1 USE="bootstrap build" emerge =sys-libs/glibc-2.3* -1 |
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<<GoogleAd>> == 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 * http://handhelds.org/moin/moin.cgi/FamiliarBackupHowto |
Gentoo On iPaq
The idea
Use only as little 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).
![/!\](/moin_static1910/podgorny/img/alert.png "/!\")
UPDATE: Now that the handhelds.org 2.6 kernel can boot right from SD, we don't need to bother with creating the jffs2 image.
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
If the above fails, try with safer versions...
crossdev -t arm-unknown-linux-gnu --g 3.4.6 --l 2.3.6-r3
If this fails complaining kernel headers are too old, do the following quick hack (see this forum for more info...
ln -s /usr/arm-unknown-linux-gnu/usr/include/ /usr/arm-unknown-linux-gnu/include mkdir /usr/arm-unknown-linux-gnu/usr/arm-unknown-linux-gnu ln -s /usr/arm-unknown-linux-gnu/lib/ /usr/arm-unknown-linux-gnu/usr/arm-unknown-linux-gnu/lib
Now you should have the complete cross-compiler (with C++) support ready. If not, don't bother to continue...
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 -1
USE="bootstrap build" emerge baselayout -1
emerge sys-kernel/linux-headers -1
USE="bootstrap build" emerge =sys-libs/glibc-2.3* -1
Vapier's achievements