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MoRPh3uSz
n00b
Joined: 12 Aug 2003
Posts: 69
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 Posted: Sat Mar 16, 2013 3:26 am Post subject: Cross-compiler for ARM/Raspberry Pi and libc6 |
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Hi,
I'm trying to install gentoo on my raspberry pi, I managed to have it working using the instructions here http://wiki.gentoo.org/wiki/Raspberry_Pi
I now want to set up a cross compiler on my pc so that updating the raspberry pi it won't take too much time, at the moment I take the SD off the raspberry pi, mount it on my pc on /mnt/raspi and from there the cross compiler manages everything.
Unfortunately that it is not always the case as it is very common for packages to fail for missing dependencies (tipically zlib and ncurses) or like for dev-libs/gmp the linker doesn't like the libc.so.6
To set up the cross compiler I've followed instructions http://www.gentoo.org/proj/en/base/embedded/handbook/index.xml?part=1&chap=3.
At the moment I'm launching emerge like that
| Code: | mount /dev/sdc2 /mnt/raspi
mount /dev/sdc1 /mnt/raspi/boot
export ROOT="/mnt/raspi"
export SYSROOT=$ROOT
armv6j-hardfloat-linux-gnueabi-emerge -1av gmp
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but it always fails returning the following error
| Code: | | /lib/libc.so.6: file not recognized: File format not recognized |
Like if it is still going to the libc.so.6 file of the host pc.
Any idea? Am I missing anything? |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54212
Location: 56N 3W
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| Posted: Sat Mar 16, 2013 9:26 am Post subject: |
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MoRPh3uSz,
You have done the hard bit of setting up cross distcc as you have a cross compiler running.
Addining distcc to the mix is easy after that.
Make sure that the Pi and the helpers have the same version of the arm gcc.
Install distcc on the Pi and the helpers
Configure and run distccd on the helpers, so they are listening for build jobs.
Add distcc to FEATURES on the Pi.
Increase the -jX in MAKEOPS on the Pi
Run | Code: | | pump emerge <package> |
on the Pi. Most of the work will be done by the helpers.
NFS or a USB hard drive helps the need for speed on the Pi. /boot must be on the SD card but other filesystems can be moved.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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