Building ARM toolchain - part 1: libs and binutils

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 crosstool-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:
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export TARGET=/home/pietrushnic/sandbox/toolchain

Procedure

Kernel header files

  • Clone linux git repository
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git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
  • Install headers $TARGET is home of our toolchain
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make ARCH=arm INSTALL_HDR_PATH=$TARGET/usr headers_install

Libraries (gmp, mpfr, mpc)

  • 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:
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hg clone http://gmplib.org:8000/gmp
  • create configuration files
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./.bootstrap
  • configure
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./configure --prefix=$TARGET/arm-x-tools --enable-shared=n --enable-static
  • compile
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make && make check && make install
  • MPFR (GNU Multiple Precision Floating-Point Reliably) - version: r8103

    • get latest version
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svn checkout svn://scm.gforge.inria.fr/svn/mpfr/trunk mpfr
  • create configuration file
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autoreconf -i
  • configure
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./configure --prefix=$TARGET/arm-x-tools --enable-thread-safe  --with-gmp=$TARGET/arm-x-tools --disable-shared --enable-static
  • compile
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make && make install
  • MPC (Multiple Precision Complex)- version: r1146

    • checkout svn
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svn checkout svn://scm.gforge.inria.fr/svnroot/mpc/trunk mpc
  • create configuration file
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autoreconf -i
  • configure
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./configure --prefix=$TARGET/arm-x-tools  --with-gmp=$TARGET/arm-x-tools --with-mpfr=$TARGET/arm-x-tools  --disable-shared --enable-static
  • compile
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make && make install
  • Binutils - collection of a GNU binary tools:

    • checkout version from anonymous cvs
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cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src
  • login create directory for checkout
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mkdir binutils
  • checkout sources
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cvs -z 9 -d :pserver:anoncvs@sourceware.org:/cvs/src co binutils
  • configure
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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
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make configure-host
make
make install

To check if everything was made correctly

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ldd $TARGET/arm-x-tools/bin/arm-unknown-linux-gnueabi-ldd

It should show that it use library compiled previously by us:

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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.


Piotr Król
Founder of 3mdeb, a passionate advocate for open-source firmware solutions, driven by a belief in transparency, innovation, and trustworthiness. Every day is a new opportunity to embody the company's vision, emphasizing user liberty, simplicity, and privacy. Beyond business, a casual chess and bridge player, finding peace in nature and nourishment in theology, philosophy, and psychology. A person striving to foster a healthy community, grounded in collaboration and shared growth, while nurturing a lifelong curiosity and a desire to deeply understand the world.