Cross Compiling: Difference between revisions
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= Builder = |
= Builder = |
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Builder is a vserver that |
Builder is a vserver that is used to build cross-compilers and cross-packages that run on x86_64 machines. The current list of installed cross-compilers includes alpha, arm, hppa (binutils only), i486, ia64, m68k, mips, mipsel, powerpc, sparc and x86_64. www.emdebian.org builds a number of cross-compilers, which can be installed by adding the following lines to /etc/apt/sources.list: |
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deb http://mirror.csclub.uwaterloo.ca/emdebian/ stable main |
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Builder contains cross-compilers capable of building packages for all architectures that the CSC currently uses. As such, it should be possible to completely automate building of a specific package for all needed architectures. |
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deb-src http://mirror.csclub.uwaterloo.ca/emdebian/ stable main |
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= Debian-supported Architectures = |
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= Compiling a toolchain = |
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Initial setup: |
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export PREFIX=architecture (target architecture gcc prefix: arm, i486, x86_64, etc...) |
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sudo apt-get install apt-cross dpkg-cross autoconf automake gawk flex bison debhelper devscripts cdbs fakeroot |
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apt-cross -a $DEB_ARCH -i linux-kernel-headers libc6 libc6-dev |
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Binutils: |
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** export GCC_TARGET=$ARCH |
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GCC: |
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export GCC_TARGET=$DEB_ARCH |
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** debian/rules control |
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** dpkg-buildpackage -b -rfakeroot |
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export DEB_CROSS_NO_BIARCH=yes |
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export USE_NJOBS=$(echo $(cat /proc/cpuinfo | grep ^processor | wc -l)*2 | bc) |
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export DEBUILD_PRESERVE_ENVVARS=GCC_TARGET,DEB_CROSS_INDEPENDNET,WITHOUT_LANG,DEB_CROSS_NO_BIARCH,USE_NJOBS |
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debuild -rfakeroot -k$USER |
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It's generally useful to upload these built packages to the CSC debian repository. To do this you need to scp the .deb's over to debian.csclub and run 'rrr-includedeb deb-files...'. |
It's generally useful to upload these built packages to the CSC debian repository. To do this you need to scp the .deb's over to debian.csclub and run 'rrr-includedeb deb-files...'. |
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= Debian Cross-packages = |
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= Emdebian = |
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There are a few tools that are useful for building cross-packages: |
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= SPARC Solaris 8 (student environment) = |
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Emdebian is the Debian project responsible for dpkg-cross, apt-cross, and emdebian-tools. |
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Initial setup: |
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== Dpkg-cross == |
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export PREFIX=/opt/$TARGET-toolchain |
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mkdir $PREFIX |
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export WORKDIR=/tmp/$TARGET-toolchain |
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mkdir $WORKDIR |
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export PATH=$PREFIX/bin:$PATH |
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Fetch Solaris includes/libs: |
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== Apt-cross == |
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cd $WORKDIR |
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rsync -av --copy-unsafe-links cpu20.student.cs.uwaterloo.ca:/usr/lib/ lib |
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* lib is ~ 1100 MiB |
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rsync -av --copy-unsafe-links cpu20.student.cs.uwaterloo.ca:/usr/include/ include |
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* include is ~ 100 MiB |
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Binutils: |
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== Emdebuild == |
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cd $WORKDIR |
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wget http://ftp.gnu.org/gnu/binutils/binutils-2.18.tar.bz2 && tar -xjf binutils-2.18.tar.bz2 |
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mkdir $WORKDIR/build-binutils && cd $WORKDIR/build-binutils |
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../binutils-2.18/configure --target=$TARGET --prefix=$PREFIX |
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make -j4 && make install |
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GCC-3.4: |
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= Sun4u = |
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cd $WORKDIR |
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wget http://ftp.gnu.org/gnu/gcc/gcc-3.4.6/gcc-3.4.6.tar.bz2 && tar -xjf gcc-3.4.6.tar.bz2 |
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mkdir $WORKDIR/build-gcc-3.4 && cd $WORKDIR/build-gcc-3.4 |
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../gcc-3.4.6/configure --target=$TARGET --prefix=$PREFIX --enable-languages=c,c++ --with-gnu-ld --with-gnu-as --enable-shared \ |
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--disable-multilib --enable-threads=posix --enable-long-long --with-headers=$WORKDIR/include --with-libs=$WORKDIR/lib |
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make -j4 && make install |
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Notes: |
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* DEB_TARGET_GNU_TYPE=sparc-sun-solaris2.8 |
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* In order to get gcc to compile, I had to modify $WORKDIR/build-gcc-3.4/gcc-3.4.6/gcc/config/sparc/gmon-sol2.c by replacing PATH_MAX with 1024. |
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* DEB_TARGET_ALIAS=sparc-sun-solaris2.8 |
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* When you compile g++, libstdc++.so.6 gets compiled and installed, which causes libstdc++.so to be symlinked to libstdc++.so.6. However, the student environment doesn't include libstdc++.so.6. You can fix this by changing the symlink to libstdc++.so.5: |
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rm $PREFIX/$TARGET/lib/libstdc++.so && ln -s libstdc++.so.5 $PREFIX/$TARGET/lib/libstdc++.so |
Latest revision as of 23:18, 25 March 2008
Builder
Builder is a vserver that is used to build cross-compilers and cross-packages that run on x86_64 machines. The current list of installed cross-compilers includes alpha, arm, hppa (binutils only), i486, ia64, m68k, mips, mipsel, powerpc, sparc and x86_64. www.emdebian.org builds a number of cross-compilers, which can be installed by adding the following lines to /etc/apt/sources.list:
deb http://mirror.csclub.uwaterloo.ca/emdebian/ stable main deb-src http://mirror.csclub.uwaterloo.ca/emdebian/ stable main
Debian-supported Architectures
Initial setup:
export PREFIX=architecture (target architecture gcc prefix: arm, i486, x86_64, etc...) export DEB_ARCH=architecture (target architecture debian name: arm, i386, amd64, etc...) sudo apt-get install apt-cross dpkg-cross autoconf automake gawk flex bison debhelper devscripts cdbs fakeroot apt-cross -a $DEB_ARCH -i linux-kernel-headers libc6 libc6-dev
Binutils:
apt-get source binutils gcc-4.1 cd binutils and run: TARGET=$PREFIX-linux-gnu fakeroot debian/rules binary-cross sudo dpkg -i binutils-$PREFIX-linux-gnu_*.deb
GCC:
cd gcc-4.1 and run: export GCC_TARGET=$DEB_ARCH export DEB_CROSS_INDEPENDENT=yes export WITHOUT_LANG=java,fortran,pascal,obj,obj-c++,ada,treelang export DEB_CROSS_NO_BIARCH=yes export USE_NJOBS=$(echo $(cat /proc/cpuinfo | grep ^processor | wc -l)*2 | bc) export DEBUILD_PRESERVE_ENVVARS=GCC_TARGET,DEB_CROSS_INDEPENDNET,WITHOUT_LANG,DEB_CROSS_NO_BIARCH,USE_NJOBS debuild -rfakeroot -k$USER sudo dpkg -i gcc-4.1-*.deb
It's generally useful to upload these built packages to the CSC debian repository. To do this you need to scp the .deb's over to debian.csclub and run 'rrr-includedeb deb-files...'.
Debian Cross-packages
There are a few tools that are useful for building cross-packages:
- emdebuild: an architecture aware version of debuild.
- dpkg-cross: a version of dpkg that allows you to install architecture-specific libraries in an isolated way. For example, dpkg-cross will build a package called libc6-mips-cross from the mips libc6 package. This cross package can then be installed alongside the mips cross-compiler.
- apt-cross: a front-end to dpkg-cross. It will automatically fetch and build cross packages.
SPARC Solaris 8 (student environment)
Initial setup:
export TARGET=sparc-sun-solaris2.8 export PREFIX=/opt/$TARGET-toolchain mkdir $PREFIX export WORKDIR=/tmp/$TARGET-toolchain mkdir $WORKDIR export PATH=$PREFIX/bin:$PATH
Fetch Solaris includes/libs:
cd $WORKDIR rsync -av --copy-unsafe-links cpu20.student.cs.uwaterloo.ca:/usr/lib/ lib * lib is ~ 1100 MiB rsync -av --copy-unsafe-links cpu20.student.cs.uwaterloo.ca:/usr/include/ include * include is ~ 100 MiB
Binutils:
cd $WORKDIR wget http://ftp.gnu.org/gnu/binutils/binutils-2.18.tar.bz2 && tar -xjf binutils-2.18.tar.bz2 mkdir $WORKDIR/build-binutils && cd $WORKDIR/build-binutils ../binutils-2.18/configure --target=$TARGET --prefix=$PREFIX make -j4 && make install
GCC-3.4:
cd $WORKDIR wget http://ftp.gnu.org/gnu/gcc/gcc-3.4.6/gcc-3.4.6.tar.bz2 && tar -xjf gcc-3.4.6.tar.bz2 mkdir $WORKDIR/build-gcc-3.4 && cd $WORKDIR/build-gcc-3.4 ../gcc-3.4.6/configure --target=$TARGET --prefix=$PREFIX --enable-languages=c,c++ --with-gnu-ld --with-gnu-as --enable-shared \ --disable-multilib --enable-threads=posix --enable-long-long --with-headers=$WORKDIR/include --with-libs=$WORKDIR/lib make -j4 && make install
Notes:
- In order to get gcc to compile, I had to modify $WORKDIR/build-gcc-3.4/gcc-3.4.6/gcc/config/sparc/gmon-sol2.c by replacing PATH_MAX with 1024.
- When you compile g++, libstdc++.so.6 gets compiled and installed, which causes libstdc++.so to be symlinked to libstdc++.so.6. However, the student environment doesn't include libstdc++.so.6. You can fix this by changing the symlink to libstdc++.so.5:
rm $PREFIX/$TARGET/lib/libstdc++.so && ln -s libstdc++.so.5 $PREFIX/$TARGET/lib/libstdc++.so