AVR toolchain compilation

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Note for MacOSX users: alternative to manual compilation is to use a pre-built CrossPack package created by Objective Development.

This document is an adapted version of AVR libc tutorial.

Create a new directory, where the toolchain source files will be stored temporarily.

Run the following script! You will be asked for a password, as sudo command is used. User account with administrator (sudo) rights is required. wget tool is required to fetch source files from GNU sites. You can compile wget from sources on both: Linux and MacOS platforms.


# will be installed under /usr/local. Change here, if other destination is needed
export PREFIX=/usr/local

# Exit on first error
set -e

# GCC and GAS patches
wget -c http://jupiter.cs.fmf.lu.lv/kursi/bst/avr-new-device-patch.tar.gz
tar -xvzf avr-new-device-patch.tar.gz

# GMP: 
echo "Fetching GMP, required by GCC..."
wget -c ftp://gcc.gnu.org/pub/gcc/infrastructure/gmp-4.3.2.tar.bz2
bunzip2 -c gmp-4.3.2.tar.bz2 | tar xf -
mkdir -p gmp-4.3.2/obj
cd gmp-4.3.2/obj
echo "Building GMP..."
../configure --prefix=$PREFIX
sudo make install
cd ../..

echo "Fetching MPFR, required by GCC..."
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/mpfr-2.4.2.tar.bz2
bunzip2 -c mpfr-2.4.2.tar.bz2 | tar xf -
mkdir -p mpfr-2.4.2/obj
cd mpfr-2.4.2/obj
echo "Building MPFR..."
../configure --prefix=$PREFIX
sudo make install
cd ../..

# MPC:
echo "Fetching MPC, required by GCC..."
wget -c ftp://gcc.gnu.org/pub/gcc/infrastructure/mpc-0.8.1.tar.gz
tar -xzf mpc-0.8.1.tar.gz
mkdir -p mpc-0.8.1/obj
cd mpc-0.8.1/obj
echo "Building MPC..."
../configure --prefix=$PREFIX
sudo make install
cd ../..
echo "Fetching binutils..."
wget -c http://ftp.gnu.org/gnu/binutils/binutils-2.20.1.tar.bz2
bunzip2 -c binutils-2.20.1.tar.bz2 | tar xf -
cd binutils-2.20.1
cp ../gas-patch-newdevices.patch ./
echo "Building binutils..."
patch -p0 < gas-patch-newdevices.patch
mkdir -p obj-avr
cd obj-avr
../configure --prefix=$PREFIX --target=avr --disable-nls --disable-werror
sudo make install
cd ../..

# GCC:
echo "Fetching GCC…"
wget -c http://ftp.gnu.org/gnu/gcc/gcc-4.5.0/gcc-4.5.0.tar.gz
tar -xzf gcc-4.5.0.tar.gz
cd gcc-4.5.0
cp ../gcc-new-device-support.patch ./
echo "Building GCC..."
patch -p0 < gcc-new-device-support.patch
mkdir -p obj-avr
cd obj-avr
../configure --prefix=$PREFIX --target=avr --enable-languages=c,c++ --disable-nls --disable-libssp --with-dwarf2
sudo make install

export LIBCVERS=1.6.7
wget -c http://download.savannah.gnu.org/releases/avr-libc/avr-libc-$LIBCVERS.tar.bz2
tar xjf avr-libc-$LIBCVERS.tar.bz2
cd avr-libc-$LIBCVERS
mkdir -p obj
cd obj
../configure --prefix=$PREFIX --build=`../config.guess` --host=avr
sudo make install