Build GNU Toolchain on Linux

Objective:

To build GNU toolchain on an old Linux system.

The Conponents of GNU toolchain refered in this article:

#step 0
export TARGET=aarch64-linux-gnu
export PREFIX=$HOME/gnu-toolchain
export SYSROOT=$PREFIX/$TARGET
export PATH=$PREFIX/bin:$PATH
mkdir $SYSROOT
cd $SYSROOT
mkdir -p usr/include usr/lib usr/bin
ln -s usr/lib usr/lib64
ln -s usr/* .
cd -

#step 1
wget https://ftp.gnu.org/gnu/binutils/binutils-2.42.tar.xz
tar xf binutils-2.42.tar.xz
mkdir build-binutils && cd build-binutils

../binutils-2.42/configure \
  --target=$TARGET \
  --prefix=$PREFIX \
  --with-sysroot=$SYSROOT \
  --disable-nls \
  --disable-werror \
  --disable-multilib

make -j$(nproc)
make install
cd ..

#step 2
wget https://ftp.gnu.org/gnu/gcc/gcc-13.3.0/gcc-13.3.0.tar.xz
tar xf gcc-13.3.0.tar.xz
cd gcc-13.3.0
./contrib/download_prerequisites
cd ..
mkdir build-gcc-stage1 && cd build-gcc-stage1

../gcc-13.3.0/configure \
--with-pkgversion=fhl-build \
--target=$TARGET \
--prefix=$PREFIX \
--with-sysroot=$SYSROOT \
--with-build-sysroot=$SYSROOT \
--with-native-system-header-dir=/usr/include \
--disable-nls \
--disable-multilib \
--enable-languages=c \
--without-headers

make all-gcc -j$(nproc)
make install-gcc
cd ..

#step 3
wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.10.50.tar.xz
tar xf linux-3.10.50.tar.xz
cd linux-3.10.50
make ARCH=arm64 INSTALL_HDR_PATH=$SYSROOT/usr headers_install
cd ..

#step 4
wget https://ftp.gnu.org/gnu/glibc/glibc-2.39.tar.xz
tar xf glibc/glibc-2.39.tar.xz
mkdir build-glibc && cd build-glibc
../glibc-2.39/configure \
--host=$TARGET \
--prefix=/usr \
--with-headers=$SYSROOT/usr/include \
--disable-multilib

make install-bootstrap-headers=yes install-headers DESTDIR=$SYSROOT

make -j$(nproc) csu/subdir_lib
install csu/crt1.o csu/crti.o csu/crtn.o $SYSROOT/usr/lib
$TARGET-gcc -nostdlib -nostartfiles -shared -x c /dev/null -o $SYSROOT/usr/lib/libc.so
touch $SYSROOT/usr/include/gnu/stubs.h
cd ..

#step 5
cd build-gcc-stage1
make all-target-libgcc -j$(nproc)
make install-target-libgcc
cd ..

#step 6
cd build-glibc
make -j$(nproc)
make install DESTDIR=$SYSROOT
cd ..

#step 7
mkdir build-gcc-final && cd build-gcc-final

../gcc-13.3.0/configure \
--target=$TARGET \
--prefix=$PREFIX \
--with-sysroot=$SYSROOT \
--with-build-sysroot=$SYSROOT \
--with-native-system-header-dir=/usr/include \
--disable-nls \
--disable-multilib \
--enable-languages=c,c++

make -j$(nproc)
make install
cd ..