#!/usr/bin/env bash

PREFIX="${HOME}/opt/sh-elf-2.35-10.2.0"
BINUTILS="binutils-2.35"
GCC="gcc-10.2.0"
export PATH="$PATH:${PREFIX}/bin"
echo "export PATH=\"\$PATH:$PREFIX/bin\"" >> ${HOME}/.profile

mkdir -p ${PREFIX}
cd ${PREFIX}

echo "Installing dependencies (sudoer password required)"
sudo apt install libmpfr-dev libmpc-dev libgmp-dev libpng-dev libppl-dev flex g++ git texinfo

echo "Downloading souces"
curl "https://ftp.gnu.org/gnu/binutils/${BINUTILS}.tar.xz" -o "${BINUTILS}.tar.xz"
curl "https://gcc.gnu.org/pub/gcc/releases/${GCC}/${GCC}.tar.xz" -o "${GCC}.tar.xz"

echo "Extract sources"
tar -xf ${BINUTILS}.tar.xz
tar -xf ${GCC}.tar.xz

echo "Create build directories"
mkdir build-binutils build-gcc

echo "Prepare binutils"
cd ${PREFIX}/build-binutils
../${BINUTILS}/configure \
    --prefix=${PREFIX} \
    --target=sh3eb-elf \
    --with-multilib-list=m3,m4-nofpu \
    --program-prefix=sh-elf- \
    --disable-nls \
    --enable-libssp \
    --enable-lto \
    --disable-werror
echo "Make binutils"
make -j$(nproc)
echo "Install binutils"
make install

echo "Prepare GCC"
cd ${PREFIX}/build-gcc
../${GCC}/configure \
    --prefix=${PREFIX} \
    --target=sh3eb-elf \
    --with-multilib-list=m3,m4-nofpu \
    --program-prefix=sh-elf- \
    --enable-languages=c,c++ \
    --without-headers \
    --with-newlib \
    --disable-nls \
    --enable-libssp \
    --enable-lto \
    --disable-werror
echo "Make GCC"
make -j$(nproc) all-gcc
echo "Install GCC"
make install-gcc

echo "Compile libgcc"
make -j$(nproc) all-target-libgcc
echo "Install libgcc"
make install-target-libgcc

echo "End"