#!/bin/sh

export INSTALL_BASE_PATH_GCC=$HOME/tmp/opt/toolchains/gcc-9.2.0-riscv64

export PATH=$PATH:$INSTALL_BASE_PATH_GCC/bin

mkdir -p $INSTALL_BASE_PATH_GCC

mkdir -p $HOME/tmp/cross-gcc-build
cd $HOME/tmp/cross-gcc-build

wget -nc https://ftp.gnu.org/gnu/binutils/binutils-2.32.tar.xz
wget -nc https://ftp.gnu.org/gnu/gcc/gcc-9.2.0/gcc-9.2.0.tar.gz
#wget -nc ftp:https://sourceware.org/pub/newlib/newlib-2.5.0.tar.gz
git clone https://github.com/riscv/riscv-newlib.git

tar xJvf binutils-2.32.tar.xz
tar xzvf gcc-9.2.0.tar.gz
#tar xzvf newlib-2.5.0.tar.gz

cd gcc-9.2.0
./contrib/download_prerequisites
cd ..

mkdir -p build-binutils
cd build-binutils
../binutils-2.32/configure --prefix=$INSTALL_BASE_PATH_GCC --target=riscv64-unknown-elf --enable-multilib --disable-shared --disable-threads
make -j8
make install
cd ..

mkdir -p build-gcc
cd build-gcc
../gcc-9.2.0/configure --prefix=$INSTALL_BASE_PATH_GCC --target=riscv64-unknown-elf --enable-languages=c,c++ --enable-multilib --disable-shared --disable-threads --with-newlib
make -j8 all-gcc
make install-gcc
cd ..

mkdir -p build-newlib
cd build-newlib
../riscv-newlib/configure --prefix=$INSTALL_BASE_PATH_GCC --target=riscv64-unknown-elf --enable-multilib --disable-shared --disable-threads --disable-newlib-supplied-syscalls
make -j8
make install
cd ..

cd build-gcc
make -j8 all
make install
cd ..