AVR toolchain compilation

This document is an adapted version of AVR libc tutorial.

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

Save the GCC patch file in this directory.

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.

#!/bin/bash

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

PATH="$PREFIX/bin:$PATH"

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

# MPFR:
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 mpfr-2.4.2/obj
cd mpfr-2.4.2/obj
echo "Building MPFR..."
../configure --prefix=$PREFIX
make
sudo make install
cd ../..

# MPC:
echo "Fetching MPC, required by GCC..."
wget ftp://gcc.gnu.org/pub/gcc/infrastructure/mpc-0.8.1.tar.gz
tar -xzf mpc-0.8.1.tar.gz
mkdir mpc-0.8.1/obj
cd mpc-0.8.1/obj
echo "Building MPC..."
../configure --prefix=$PREFIX
make
sudo make install
cd ../..
 
# BINUTILS:
echo "Fetching binutils..."
wget http://ftp.gnu.org/gnu/binutils/binutils-2.20.tar.gz
tar -xzf binutils-2.20.tar.gz
cd binutils-2.20
cp ../gas-patch-newdevices.patch ./
echo "Building binutils..."
patch -p0 < gas-patch-newdevices.patch
mkdir obj-avr
cd obj-avr
../configure --prefix=$PREFIX --target=avr --disable-nls
make
sudo make install
cd ../..

# GCC:
echo "Fetching GCC…"
wget http://ftp.gnu.org/gnu/gcc/gcc-4.5.0/gcc-core-4.5.0.tar.gz
tar -xzf gcc-core-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 obj-avr
../configure --prefix=$PREFIX --target=avr --enable-languages=c,c++ --disable-nls --disable-libssp --with-dwarf2