Searching the Internet for information on how to build arm toolchain from scratch I realize that it is very hard to find  information about this matter (and recent one even harder). I will try to fill this lack of information and try to build toolchain. My main goal is to use a component based on the GNU public license, and using them in as the newest version as it is possible. What is toolchain ? (according to wikipedia):

In software, a toolchain is the set of programming tools that are used to create a product (typically another computer program or system of programs). The tools may be used in a chain, so that the output of each tool becomes the input for the next, but the term is used widely to refer to any set of linked development tools.

Requirements

  • Cross compiler, I create one using corsstool-ng and describe this process in  previous post. I will use arm-unknown-linux-gnueabi as entry point compiler.
  • $TARGET is defined as my destination directory:

    export TARGET=/home/pietrushnic/sandbox/toolchain

Procedure

Kernel header files

  1. clone linux git repository

    git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

  2. install headers $TARGET is home of our toolchain

    make ARCH=arm INSTALL_HDR_PATH=$TARGET/usr headers_install

Libraries (gmp, mpfr, mpc)

  1. GMP (GNU Multiple Precision Arithmetic Library) – changeset used: 14765:0acae62fa162 * As I said before. I use “latest greatest” ;P version, and for gmp we can reach it using:

    hg clone http://gmplib.org:8000/gmp

    • create configuration files

    ./.bootstrap

  • configure

    ./configure –prefix=$TARGET/arm-x-tools –enable-shared=n –enable-static

  • compile

    make && make check && make install

  1. MPFR (GNU Multiple Precision Floating-Point Reliably) – version: r8103 – get latest version

    svn checkout svn://scm.gforge.inria.fr/svn/mpfr/trunk mpfr

  • create configuration file

    autoreconf -i

  • configure

    ./configure –prefix=$TARGET/arm-x-tools –enable-thread-safe –with-gmp=$TARGET/arm-x-tools –disable-shared –enable-static

  • compile

    make && make install

  1. MPC (Multiple Precision Complex)- version: r1146 – checkout svn

    svn checkout svn://scm.gforge.inria.fr/svnroot/mpc/trunk mpc

  • create configuration file

    autoreconf -i

  • configure

    ./configure –prefix=$TARGET/arm-x-tools –with-gmp=$TARGET/arm-x-tools –with-mpfr=$TARGET/arm-x-tools –disable-shared –enable-static

  • compile

    make && make install

  1. Binutils – collection of a GNU binary tools: – checkout version from anonymous cvs

    cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src

  • login create directory for checkout

    mkdir binutils checkout sources

    cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src co binutils

  • configure

    LDFLAGS=”-Wl,-rpath -Wl,$TARGET/arm-x-tools/lib” ./configure –build=x86_64-pc-linux-gnu –host=x86_64-pc-linux-gnu –target=arm-unknown-linux-gnueabi –prefix=$TARGET/arm-x-tools –disable-nls –disable-multilib –disable-werror –with-float=soft –with-gmp=$TARGET/arm-x-tools –with-mpfr=$TARGET/arm-x-tools –with-mpc=$TARGET/arm-x-tools –with-sysroot=$TARGET

  • compile

    make configure-host make make install

  • to check if everything was made correctly

    ldd $TARGET/arm-x-tools/bin/arm-unknown-linux-gnueabi-ldd it should show that it use library compiled previously by us:

    libz.so.1 => /home/pietrushnic/sandbox/toolchain/arm-x-tools/lib/libz.so.1 (0x00007f0086cc5000) This set gives us a solid base to build the compiler. However, it will be in the

next section.