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