Subversion Repositories hf-risc

#!/bin/sh

# this script was written by Sergio Johann Filho [sergio.johann@acad.pucrs.br]

#

# mods performed on GCC sources for the MIPS I target (new flags added):

# -mpatfree - don't use patented MIPS instructions (swl, swr, lwl, lwr)

# -mnohwmult - don't generate multiplication instructions (mult, multu)

# -mnohwdiv - don't generate division instructions (div, divu)

#

# in order to build the toolchain, we need some basic tools:

# flex bison libgmp3-dev libmpfr-dev autoconf texinfo build-essential libncurses5-dev

#

# you don't need to run this script as root. after completion, just move the

# mips-elf/ directory to its place (e.g /usr/local) and add the tools directory

# to the PATH environment variable (export $PATH:=$PATH:/usr/local/mips-elf/

# gcc-4.9.3/bin). alternatively, the compiler may be left anywhere in the user

# home directory.

#

# to test the toolchain:

#

# mips-elf-gcc -Tidt.ld hello.c -o hello

# mips-elf-run hello

#

# to run under the control of gdb:

#

# mips-elf-gdb hello

#   break main

#   target sim

#   load

#   run

#   next

#   next

#   quit

#

binutils_base="binutils-2.27"

gcc_base="gcc-4.9.3"

newlib_base="newlib-2.2.0"

gdb_base="gdb-7.9.1"

root_dir=`pwd`

TARGET=mips-elf

PREFIX=${root_dir}/$TARGET/${gcc_base}

BUILD=i686-linux-gnu

# setup our toolchain new path

export PATH=$PREFIX/bin:$PATH

dl_dir="${root_dir}/download"

src_dir="${root_dir}/source"

bld_dir="${root_dir}/build"

install_dir="${root_dir}/install"

mkdir $src_dir

mkdir $bld_dir

mkdir $install_dir

mkdir $dl_dir

# download all sources

cd $dl_dir

wget -c ftp://ftp.gnu.org/gnu/binutils/${binutils_base}.tar.bz2

wget -c ftp://ftp.gnu.org/gnu/gcc/${gcc_base}/${gcc_base}.tar.bz2

wget -c ftp://sources.redhat.com/pub/newlib/${newlib_base}.tar.gz

wget -c ftp://ftp.gnu.org/gnu/gdb/${gdb_base}.tar.gz

# unpack everything

cd $src_dir

tar -jxvf ${dl_dir}/"${binutils_base}.tar.bz2"

tar -jxvf ${dl_dir}/"${gcc_base}.tar.bz2"

tar -zxvf ${dl_dir}/"${newlib_base}.tar.gz"

tar -zxvf ${dl_dir}/"${gdb_base}.tar.gz"

# patch GCC

cp ${root_dir}/mips.c ${src_dir}/${gcc_base}/gcc/config/mips/

cp ${root_dir}/mips.md ${src_dir}/${gcc_base}/gcc/config/mips/

cp ${root_dir}/mips.opt ${src_dir}/${gcc_base}/gcc/config/mips/

#

# build binutils

#

cd $bld_dir

mkdir $binutils_base

cd $binutils_base

${src_dir}/${binutils_base}/configure --prefix=$PREFIX --target=$TARGET

        --enable-interwork --enable-multilib --with-gnu-as --with-gnu-ld \

        --disable-nls --disable-werror

make

make install

#

# build GCC

#

cd ${src_dir}/${gcc_base}

./contrib/download_prerequisites

cd $bld_dir

mkdir ${gcc_base}-initial

cd ${gcc_base}-initial

${src_dir}/${gcc_base}/configure --prefix=$PREFIX --target=$TARGET \

        --with-gnu-as --with-gnu-ld --enable-languages=c \

        --with-newlib --without-headers

make

make install

# build libgcc.a

make all-target-libgcc CFLAGS_FOR_TARGET="-g -O2 -mpatfree"

make install-target-libgcc

#

# build newlib

#

cd $bld_dir

mkdir $newlib_base

cd $newlib_base

${src_dir}/${newlib_base}/configure --prefix=$PREFIX --target=$TARGET \

        --disable-newlib-supplied-syscalls CFLAGS_FOR_TARGET="-mpatfree"

make

make install

#

# build GDB

#

cd $bld_dir

mkdir $gdb_base

cd $gdb_base

${src_dir}/${gdb_base}/configure --prefix=$PREFIX --target=$TARGET

make

make install