mkgcc.sh

ARCH=$1
PREFIX="$2"
IFS=. read -a TRIPLE <<< "$IP"

GMP="gmp-5.0.5"
MPFR="mpfr-3.1.1"
MPC="mpc-0.9"
BINUTILS="binutils-2.22"
GCC="gcc-4.7.1"
LLVM="llvm-3.1"
CLANG="clang-3.1"
COMPILER_RT="compiler-rt-3.1"
GDB="gdb-7.4.1"
NEWLIB=newlib-1.20.0

GMP_BUILD="$GMP-$ARCH-build"
MPFR_BUILD="$MPFR-$ARCH-build"
MPC_BUILD="$MPC-$ARCH-build"
BINUTILS_BUILD="$BINUTILS-$ARCH-build"
GCC_BUILD="$GCC-$ARCH-build"
LLVM_BUILD="$LLVM-$ARCH-build"
GDB_BUILD="$GDB-$ARCH-build"

CPPFLAGS="$CPP -I$PREFIX/include"
LDFLAGS="$LDFLAGS -L$PREFIX/lib"

WD=$(pwd)

function get {
    if [ ! -e "$2$3" ]; then
		wget $1$2$3
	fi
}

function build {
	echo "Build $1, from $2"
	mkdir -p $3
	if [ ! -e $3/.config.done ]; then 
		echo "-- Configure $2"
		cd $3 && ../$2/configure --prefix=$PREFIX $4 && touch .config.done && cd $WD || exit 1
	fi

	if [ ! -e $3/.build.done ]; then
		echo "-- Build $2"
		cd $3 && make -j4 && touch .build.done && cd $WD || exit 1
	fi

	if [ ! -e "$PREFIX/$1" ]; then
		echo "-- Install $2"
		cd $3 && make install && cd $WD || exit 1
	fi
}

if [ -z "$ARCH" ]; then
	echo "Must specify target"
	exit 1
fi

if [ -z "$PREFIX" ]; then
	PREFIX="/usr/lib/fusion-$ARCH"
fi

get http://ftp.gnu.org/gnu/gmp/ $GMP .tar.bz2
get http://ftp.gnu.org/gnu/mpfr/ $MPFR .tar.bz2
get http://www.multiprecision.org/mpc/download/ $MPC .tar.gz
get http://ftp.gnu.org/gnu/binutils/ $BINUTILS .tar.bz2
get http://ftp.gnu.org/gnu/gcc/gcc-4.7.1/ $GCC .tar.bz2
get ftp://sources.redhat.com/pub/newlib/ $NEWLIB .tar.gz
get http://www.llvm.org/releases/3.1/ $LLVM .src.tar.gz
get http://www.llvm.org/releases/3.1/ $CLANG .src.tar.gz
get http://www.llvm.org/releases/3.1/ $COMPILER_RT .src.tar.gz
get http://ftp.gnu.org/gnu/gdb/ $GDB .tar.bz2

if [ ! -e "./$GMP" ]; then
	tar xjf $GMP.tar.bz2
fi

if [ ! -e "./$MPFR" ]; then
	tar xjf $MPFR.tar.bz2
fi

if [ ! -e "./$MPC" ]; then
	tar xzf $MPC.tar.gz
fi

if [ ! -e "./$BINUTILS" ]; then
	tar xjf $BINUTILS.tar.bz2
fi

if [ ! -e "./$GCC" ]; then
	tar xjf $GCC.tar.bz2
fi

if [ ! -e "./$GCC/newlib" ]; then
	tar xzf $NEWLIB.tar.gz
	cd $GCC
	./symlink-tree $WD/$NEWLIB
	cd $WD
fi

if [ ! -e "./$LLVM" ]; then
	tar xzf $LLVM.src.tar.gz
	mv $LLVM.src $LLVM
fi

if [ ! -e "./$LLVM/projects/compiler-rt" ]; then
	cd $LLVM/projects
	tar xzf $WD/$COMPILER_RT.src.tar.gz
	mv $COMPILER_RT.src compiler-rt
	cd $WD
fi

if [ ! -e "./$LLVM/tools/clang" ]; then
	cd $LLVM/tools
	tar xzf $WD/$CLANG.src.tar.gz
	mv $CLANG.src clang
	cd $WD
fi

if [ ! -e "./$GDB" ]; then
	tar xvvjf $GDB.tar.bz2;
fi;

build lib/libgmp.a $GMP $GMP_BUILD
build lib/libmpfr.a $MPFR $MPFR_BUILD "--with-gmp=$PREFIX"
build lib/libmpc.a $MPC $MPC_BUILD "--with-gmp=$PREFIX --with-mpfr=$PREFIX"


mkdir -p $BINUTILS_BUILD
if [ ! -e $BINUTILS_BUILD/.config.done ]; then
	echo "--Configure binutils"
	cd $BINUTILS_BUILD && \
		../$BINUTILS/configure --with-local-prefix=$PREFIX --prefix=$PREFIX --target=$ARCH && \
		touch .config.done && cd $WD || exit 1
fi
if [ ! -e $BINUTILS_BUILD/.build.done ]; then
	echo "-- Building Binutils"
	cd $BINUTILS_BUILD && make -j4 && touch .build.done && cd $WD || exit 1
fi
if [ ! -e "$PREFIX/$ARCH/bin/ld" ]; then
	echo "-- Install Binutils"
	cd $BINUTILS_BUILD && make install && cd $WD || exit 1
fi

mkdir -p $GCC_BUILD
if [ ! -e $GCC_BUILD/.config.done ]; then 
	echo "-- Configuring GCC"
	cd $GCC_BUILD && \
		../$GCC/configure --with-local-prefix=$PREFIX --prefix=$PREFIX --target=$ARCH \
		--enable-languages=c,c++ --with-gmp=$PREFIX --with-mpfr=$PREFIX --with-mpc=$PREFIX \
		--without-headers --enable-target-optspace && \
		touch .config.done && cd $WD || exit 1
fi
if [ ! -e $GCC_BUILD/.build.done ]; then
	echo "-- Building GCC"
	cd $GCC_BUILD && \
		make all-gcc -j4 && \
		touch .build.done && \
		cd $WD || exit 1
fi

if [ ! -e "$PREFIX/$ARCH/bin/gcc" ]; then
	cd $GCC_BUILD && make install && cd $WD
fi

GCC_VERSION=$($PREFIX/$ARCH/bin/gcc -dumpversion)

if [ ! -e $GCC_BUILD/.libgcc.done ]; then
	echo "-- Building libgcc"
	cd $GCC_BUILD && make all-target-libgcc -j4 && touch .libgcc.done && cd $WD || exit 1
fi

if [ ! -e "$PREFIX/lib/gcc/$ARCH/$GCC_VERSION/libgcc.a" ]; then
	cd $GCC_BUILD && make install-target-libgcc && cd $WD || exit 1
fi

if [ ! -e $LLVM_BUILD/.config.succeeded ]; then
	echo "-- Configure LLVM"
	mkdir -p $LLVM_BUILD && \
		cd $LLVM_BUILD && \
		$WD/$LLVM/configure --prefix=$PREFIX --enable-optimized --disable-docs --enable-pic --enable-targets=host,x86,arm && \
		touch .config.succeeded &&
		cd $WD || exit 1
fi

if [ ! -e $LLVM_BUILD/.build.succeeded ]; then
	echo "-- Build LLVM"
	cd $LLVM_BUILD
	make -j4 && touch .build.succeeded || exit 1
	cd $WD
fi

if [ ! -e "$PREFIX/bin/clang" ]; then
	echo "-- Install LLVM"
	cd $LLVM_BUILD
	make install
	cd $WD
fi

if [ ! -e $GDB_BUILD/.config.succeeded ]; then
	echo "-- Configure GDB"
	mkdir -p $GDB_BUILD && \
		cd $GDB_BUILD && \
		$WD/$GDB/configure --prefix=$PREFIX --target=$ARCH --with-gmp=$PREFIX --with-mpfr=$PREFIX --with-mpc=$PREFIX --without-python && \
		touch .config.succeeded && \
		cd $WD || exit 1
fi

if [ ! -e $GDB_BUILD/.build.succeeded ]; then
	cd $GDB_BUILD && \
		make -j4 && touch .build.succeeded && \
		cd $WD || exit 1
fi

if [ ! -e "$PREFIX/bin/$ARCH-gdb" ]; then
	echo "-- Install GDB"
	cd $GDB_BUILD && make install && cd $WD || exit 1
fi