CSSU-thumb toolchain setup (gcc4.7.2-linaro)
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[sbox->:~]sb-conf st FREMANTLE_ARMEL_GCC472 -c linaro-4.7-2012.07-fremantle-armv7a -d qemu:perl:debian-etch:doctools:svn:git -t qemu-arm-sb | [sbox->:~]sb-conf st FREMANTLE_ARMEL_GCC472 -c linaro-4.7-2012.07-fremantle-armv7a -d qemu:perl:debian-etch:doctools:svn:git -t qemu-arm-sb | ||
| + | |||
| + | replace debian-etch with debian-squeeze if you use ScratchBox Hathor release | ||
[sbox->:~]sb-conf se FREMANTLE_ARMEL_GCC472 | [sbox->:~]sb-conf se FREMANTLE_ARMEL_GCC472 | ||
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[sbox-FREMANTLE_ARMEL_GCC472: ~] > sb-conf in -edL | [sbox-FREMANTLE_ARMEL_GCC472: ~] > sb-conf in -edL | ||
| + | |||
| + | [sbox-FREMANTLE_ARMEL_GCC472: ~] > dpkg -i /scratchbox/compilers/linaro-4.7-2012.07-fremantle-armv7a/packages/libfakeroot_1.14.4-0+sb1_armel.deb | ||
[sbox-FREMANTLE_ARMEL_GCC472: ~] > apt-get update | [sbox-FREMANTLE_ARMEL_GCC472: ~] > apt-get update | ||
Revision as of 08:43, 5 June 2013
This document describes how to setup the CSSU-thumb toolchain (gcc4.7.2-linaro) in scratchbox.
GCC 4.7.2 does not produce thumb binaries by default, you should pass -mthumb if you want thumb resulting executables! without -mthumb it produces regular ARM ELFs
1. You need to have ScratchBox environment already set up.
2. Download gcc-4.7.2-linaro toolchain and extract it under /scratchbox/compilers (may need root privileges for extracting there)
tar xvf linaro-4.7-2012.07-fremantle-armv7a.tar.bz2
3. Create new ScratchBox target FREMANTLE_ARMEL_GCC472
- Login to ScratchBox
$ /scratchbox/login
- Create new ScratchBox target
[sbox->:~]sb-conf st FREMANTLE_ARMEL_GCC472 -c linaro-4.7-2012.07-fremantle-armv7a -d qemu:perl:debian-etch:doctools:svn:git -t qemu-arm-sb
replace debian-etch with debian-squeeze if you use ScratchBox Hathor release
[sbox->:~]sb-conf se FREMANTLE_ARMEL_GCC472
[sbox-FREMANTLE_ARMEL_GCC472: ~] > sb-conf rs maemo-sdk-rootstrap_5.0_20.2010.36-2_armel.tgz
[sbox-FREMANTLE_ARMEL_GCC472: ~] > sb-conf in -edL
[sbox-FREMANTLE_ARMEL_GCC472: ~] > dpkg -i /scratchbox/compilers/linaro-4.7-2012.07-fremantle-armv7a/packages/libfakeroot_1.14.4-0+sb1_armel.deb
[sbox-FREMANTLE_ARMEL_GCC472: ~] > apt-get update [sbox-FREMANTLE_ARMEL_GCC472: ~] > fakeroot apt-get install maemo-sdk-debug
- Accept Maemo5 SDK EULA and copy the URL. Add nokia-binaries repository URL to /etc/apt/sources.list
[sbox-FREMANTLE_ARMEL_GCC472: ~] >apt-get update [sbox-FREMANTLE_ARMEL_GCC472: ~] >fakeroot apt-get install nokia-binaries nokia-apps
[sbox-FREMANTLE_ARMEL_GCC472: ~] >rm -rf /targets/FREMANTLE_ARMEL_GCC472/opt [sbox-FREMANTLE_ARMEL_GCC472: ~] >mkdir /targets/FREMANTLE_ARMEL_GCC472/opt
- Download ScratchBox errata dependency provider package sb-thumb-errata-provider_0.1-1_armel.deb and install it
dpkg -i sb-thumb-errata-provider_0.1-1_armel.deb
- Add CSSU-testing and CSSU-thumb repos to your /etc/apt/sources.list
echo "deb http://repository.maemo.org/community-testing/ fremantle free non-free" >> /etc/apt/sources.list echo "deb-src http://repository.maemo.org/community-testing/ fremantle free" >> /etc/apt/sources.list
echo "deb http://maemo.merlin1991.at/cssu/community-thumb/ fremantle free non-free" >> /etc/apt/sources.list echo "deb-src http://maemo.merlin1991.at/cssu/community-thumb/ fremantle free" >> /etc/apt/sources.list
Remove unneeded package maemo-core-debug
apt-get remove maemo-core-debug
Upgrade your target to latest CSSU-thumb
[sbox-FREMANTLE_ARMEL_GCC472: ~] >apt-get update [sbox-FREMANTLE_ARMEL_GCC472: ~] >fakeroot apt-get upgrade
Download and install libstdc++6-dev_4.7.2-0+cssu0_armel.deb
dpkg -i libstdc++6-dev_4.7.2-0+cssu0_armel.deb
It can complain about libstdc++6 on system is 4.2.1-4maemo13+0m5.
apt-get -f install
can fix that by installing the proper libstdc++6 afterwards.
Create FREMANTLE_ARMEL_GCC472.environment in your /targets directory
echo "export DEB_BUILD_OPTIONS=maemo-launcher,thumb,vfp" > /targets/FREMANTLE_ARMEL_GCC472.environment
Your target should be ok at that point. Make sure to reenter the target, so updated FREMANTLE_ARMEL_GCC472.environment to take effect
Interesting new flags can be: -mfpu=neon -ftree-vectorize -fgraphite -lto
The compiler will give the following warning:
/scratchbox/compilers/linaro-4.7-2012.07-fremantle-armv7a/bin/../lib/gcc/arm-none-linux-gnueabi/4.7.2/../../../../arm-none-linux-gnueabi/bin/ld: BFD (GNU Binutils) 2.22 assertion fail ../../../sources/binutils-2.22/bfd/elf32-arm.c:11467
These warnings can be ignored. For some reason, the linker thinks that the object is hardfp, but as it is softfp the assertion fails.