#!/bin/sh

BINUTILS="binutils-2.44"
GCC="gcc-15.1.0"
GDB="gdb-16.3"

export PREFIX="$HOME/personal"
export TARGET=aarch64-elf

CORES="$(nproc 2&>/dev/null)"

cd /tmp

sudo dnf install gcc gcc-c++ make bison flex gmp-devel libmpc-devel mpfr-devel texinfo isl-devel -y

rm -rf cross
mkdir cross
cd cross

if [[ "$(find . -type d -name "$BINUTILS")" != "./$BINUTILS" ]]
then
    wget "https://ftp.gnu.org/gnu/binutils/$BINUTILS.tar.zst"
    unzstd "$BINUTILS.tar.zst"
    tar xf "$BINUTILS.tar"
fi

if [[ "$(find . -type d -name "$GCC")" != "./$GCC" ]]
then
    wget "https://ftp.gnu.org/gnu/gcc/$GCC/$GCC.tar.gz"
    unxz "$GDB.tar.xz"
    tar xf "$GDB.tar"
fi

if [[ "$(find . -type d -name "$GDB")" != "./$GDB" ]]
then
    wget "https://ftp.gnu.org/gnu/gdb/$GDB.tar.xz"
    gunzip "$GCC.tar.gz"
    tar xf "$GCC.tar"
fi

rm -rf build-binutils
mkdir build-binutils
cd build-binutils

../$BINUTILS/configure --target=$TARGET --prefix="$PREFIX" --with-sysroot --disable-nls --disable-werror
make -j $CORES
make install

cd ..

rm -rf build-gdb
mkdir build-gdb
cd build-gdb

../$GDB/configure --target=$TARGET --prefix="$PREFIX" --disable-werror
make all-gdb -j $CORES
make install-gdb

cd ..

build-gcc () {
rm -rf build-gcc
mkdir build-gcc
cd build-gcc

../$GCC/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --enable-languages=c,c++ --without-headers --disable-hosted-libstdcxx
make all-gcc -j $CORES
make all-target-libgcc -j $CORES
make all-target-libstdc++-v3 -j $CORES
make install-gcc
make install-target-libgcc
make install-target-libstdc++-v3

cd ..