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#!/bin/bash

# Cross-Compiler Toolchain for ${PLATFORM}

#  by Martin Decky <martin@decky.cz>

#

#  GPL'ed, copyleft

#

check_error() {

    if [ "$1" -ne "0" ]; then

    echo

    echo "Script failed: $2"

    exit

    fi

}

if [ -z "${CROSS_PREFIX}" ] ; then

    CROSS_PREFIX="/usr/local"

fi

BINUTILS_VERSION="2.19"

GCC_VERSION="4.3.2"

BINUTILS="binutils-${BINUTILS_VERSION}.tar.gz"

GCC_CORE="gcc-core-${GCC_VERSION}.tar.bz2"

GCC_OBJC="gcc-objc-${GCC_VERSION}.tar.bz2"

GCC_CPP="gcc-g++-${GCC_VERSION}.tar.bz2"

BINUTILS_SOURCE="ftp://ftp.gnu.org/gnu/binutils/"

GCC_SOURCE="ftp://ftp.gnu.org/gnu/gcc/gcc-${GCC_VERSION}/"

PLATFORM="mips"

WORKDIR=`pwd`

TARGET="${PLATFORM}-sgi-irix5"

PREFIX="${CROSS_PREFIX}/${PLATFORM}"

BINUTILSDIR="${WORKDIR}/binutils-${BINUTILS_VERSION}"

GCCDIR="${WORKDIR}/gcc-${GCC_VERSION}"

OBJDIR="${WORKDIR}/gcc-obj"

echo ">>> Downloading tarballs"

if [ ! -f "${BINUTILS}" ]; then

    wget -c "${BINUTILS_SOURCE}${BINUTILS}"

    check_error $? "Error downloading binutils."

fi

if [ ! -f "${GCC_CORE}" ]; then

    wget -c "${GCC_SOURCE}${GCC_CORE}"

    check_error $? "Error downloading GCC Core."

fi

if [ ! -f "${GCC_OBJC}" ]; then

    wget -c "${GCC_SOURCE}${GCC_OBJC}"

    check_error $? "Error downloading GCC Objective C."

fi

if [ ! -f "${GCC_CPP}" ]; then

    wget -c "${GCC_SOURCE}${GCC_CPP}"

    check_error $? "Error downloading GCC C++."

fi

echo ">>> Creating destionation directory"

if [ ! -d "${PREFIX}" ]; then

    mkdir -p "${PREFIX}"

    test -d "${PREFIX}"

    check_error $? "Unable to create ${PREFIX}."

fi

echo ">>> Creating GCC work directory"

if [ ! -d "${OBJDIR}" ]; then

    mkdir -p "${OBJDIR}"

    test -d "${OBJDIR}"

    check_error $? "Unable to create ${OBJDIR}."

fi

echo ">>> Unpacking tarballs"

tar -xvzf "${BINUTILS}"

check_error $? "Error unpacking binutils."

tar -xvjf "${GCC_CORE}"

check_error $? "Error unpacking GCC Core."

tar -xvjf "${GCC_OBJC}"

check_error $? "Error unpacking GCC Objective C."

tar -xvjf "${GCC_CPP}"

check_error $? "Error unpacking GCC C++."

echo ">>> Compiling and installing binutils"

cd "${BINUTILSDIR}"

check_error $? "Change directory failed."

patch -p1 <<EOF

diff -Naur binutils-2.19.orig/bfd/elfxx-mips.c binutils-2.19/bfd/elfxx-mips.c

--- binutils-2.19.orig/bfd/elfxx-mips.c 2008-08-18 20:14:04.000000000 +0200

+++ binutils-2.19/bfd/elfxx-mips.c  2009-01-18 18:14:47.292011299 +0100

@@ -1409,7 +1409,7 @@

    function, or 0 if we can't decide which function that is.  */

 static unsigned long

-mips16_stub_symndx (asection *sec, const Elf_Internal_Rela *relocs,

+mips16_stub_symndx (asection *sec __attribute__((unused)), const Elf_Internal_Rela *relocs,

            const Elf_Internal_Rela *relend)

 {

   const Elf_Internal_Rela *rel;

EOF

check_error $? "Error patching binutils"

./configure "--target=${TARGET}" "--prefix=${PREFIX}" "--program-prefix=${TARGET}-" "--disable-nls"

check_error $? "Error configuring binutils."

make all install

check_error $? "Error compiling/installing binutils."

echo ">>> Compiling and installing GCC"

cd "${OBJDIR}"

check_error $? "Change directory failed."

"${GCCDIR}/configure" "--target=${TARGET}" "--prefix=${PREFIX}" "--program-prefix=${TARGET}-" --with-gnu-as --with-gnu-ld --disable-nls --disable-threads --enable-languages=c,objc,c++,obj-c++ --disable-multilib --disable-libgcj --without-headers --disable-shared

check_error $? "Error configuring GCC."

PATH="${PATH}:${PREFIX}/bin" make all-gcc install-gcc

check_error $? "Error compiling/installing GCC."

echo

echo ">>> Cross-compiler for ${TARGET} installed."