05-compile-cross-toolchain.sh

#!/bin/bash

set -e
set -v

### Chapter 5. Compiling a Cross-Toolchain
source $HOME/.bashrc
env
echo $LFS
cd $LFS
cd $LFS/sources

case "$KVM_LFS_CONTINUE" in
"5.2")
	### 5.2 Binutils-2.35 - Pass 1
	tar -xf binutils-2.35.tar.xz
	cd binutils-2.35
	mkdir -v build
	cd build
	../configure --prefix=$LFS/tools --with-sysroot=$LFS --target=$LFS_TGT \
		--disable-nls --disable-werror
	make
	make install
	cd ../..
	rm -rf binutils-2.35
;&

"5.3")
	### 5.3. GCC-10.2.0 - Pass 1
	tar -xf gcc-10.2.0.tar.xz
	cd gcc-10.2.0
	tar -xf ../mpfr-4.1.0.tar.xz
	mv -v mpfr-4.1.0 mpfr
	tar -xf ../gmp-6.2.0.tar.xz
	mv -v gmp-6.2.0 gmp
	tar -xf ../mpc-1.1.0.tar.gz
	mv -v mpc-1.1.0 mpc
	case $(uname -m) in
		x86_64)
			sed -e '/m64=/s/lib64/lib/' -i.orig gcc/config/i386/t-linux
			;;
	esac
	mkdir -v build
	cd build
	../configure --target=$LFS_TGT --prefix=$LFS/tools --with-glibc-version=2.11 \
		--with-sysroot=$LFS --with-newlib --without-headers \
		--enable-initfini-array --disable-nls --disable-shared \
		--disable-multilib --disable-decimal-float --disable-threads \
		--disable-libatomic --disable-libgomp --disable-libquadmath \
		--disable-libssp --disable-libvtv --disable-libstdcxx \
		--enable-languages=c,c++
	make
	make install
	cd ..
	cat gcc/limitx.h gcc/glimits.h gcc/limity.h > \
		`dirname $($LFS_TGT-gcc -print-libgcc-file-name)`/install-tools/include/limits.h
	cd ..
	rm -rf gcc-10.2.0
;&

"5.4")
	### 5.4. Linux-5.8.3 API Headers
	tar -xf linux-5.8.3.tar.xz
	cd linux-5.8.3
	make mrproper
	make headers
	find usr/include -name '.*' -delete
	rm usr/include/Makefile
	cp -rv usr/include $LFS/usr
	cd ..
	rm -rf linux-5.8.3
;&

"5.5")
	### 5.5. Glibc-2.32
	tar -xf glibc-2.32.tar.xz
	cd glibc-2.32
	case $(uname -m) in
		i?86)
			ln -sfv ld-linux.so.2 $LFS/lib/ld-lsb.so.3
			;;
		x86_64)
			ln -sfv ../lib/ld-linux-x86-64.so.2 $LFS/lib64
			ln -sfv ../lib/ld-linux-x86-64.so.2 \
				$LFS/lib64/ld-lsb-x86-64.so.3
			;;
	esac
	patch -Np1 -i ../glibc-2.32-fhs-1.patch
	mkdir -v build
	cd build
	../configure --prefix=/usr --host=$LFS_TGT --build=$(../scripts/config.guess) \
		--enable-kernel=3.2 --with-headers=$LFS/usr/include libc_cv_slibdir=/lib
	make
	make DESTDIR=$LFS install
	echo 'int main(){}' > dummy.c
	$LFS_TGT-gcc dummy.c
	readelf -l a.out | grep '/ld-linux' | grep -F '[Requesting program interpreter: /lib64/ld-linux-x86-64.so.2]'
	rm -v dummy.c a.out
	$LFS/tools/libexec/gcc/$LFS_TGT/10.2.0/install-tools/mkheaders
	cd ../..
	rm -rf glibc-2.32
;&

"5.6")
	### 5.6 Libstdc++ from GCC-10.2.0, Pass 1
	tar -xf gcc-10.2.0.tar.xz
	cd gcc-10.2.0
	mkdir -v build
	cd build
	../libstdc++-v3/configure --host=$LFS_TGT --build=$(../config.guess) \
		--prefix=/usr --disable-multilib --disable-nls --disable-libstdcxx-pch \
		--with-gxx-include-dir=/tools/$LFS_TGT/include/c++/10.2.0
	make
	make DESTDIR=$LFS install
	cd ../..
	rm -rf gcc-10.2.0
	echo "SUCCESS - 5"
;&
esac