#!/bin/bash
# LFS 11.0 Build Script
# Builds the cross-toolchain and cross compiling temporary tools from chapters 5 and 6
# by Luís Mendes :)
# 08/Sep/2021

package_name=""
package_ext=""

begin() {
	package_name=$1
	package_ext=$2

	echo "[lfs-scripts] Starting build of $package_name at $(date)"

	tar xf $package_name.$package_ext
	cd $package_name
}

finish() {
	echo "[lfs-scripts] Finishing build of $package_name at $(date)"

	cd $LFS/sources
	rm -rf $package_name
}

cd $LFS/sources

# 5.2. Binutils-2.38 - Pass 1
begin binutils-2.38 tar.xz
mkdir -v build
cd       build
../configure --prefix=$LFS/tools \
             --with-sysroot=$LFS \
             --target=$LFS_TGT   \
             --disable-nls       \
             --disable-werror
make
make install -j1
finish

# 5.3. GCC-11.2.0 - Pass 1
begin gcc-11.2.0 tar.xz
tar -xf ../mpfr-4.1.0.tar.xz
mv -v mpfr-4.1.0 mpfr
tar -xf ../gmp-6.2.1.tar.xz
mv -v gmp-6.2.1 gmp
tar -xf ../mpc-1.2.1.tar.gz
mv -v mpc-1.2.1 mpc
case $(uname -m) in
  x86_64)
    sed -e '/m64=/s/lib64/lib/' \
        -i.orig gcc/config/i386/t-linux64
 ;;
esac
mkdir -v build
cd       build
../configure                                       \
    --target=$LFS_TGT                              \
    --prefix=$LFS/tools                            \
    --with-glibc-version=2.35                      \
    --with-sysroot=$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
finish

# 5.4. Linux-5.13.12 API Headers
begin linux-5.13.12 tar.xz
make mrproper
make headers
find usr/include -name '.*' -delete
rm usr/include/Makefile
cp -rv usr/include $LFS/usr
finish

# 5.5. Glibc-2.35
begin glibc-2.35 tar.xz
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 $LFS/lib64/ld-lsb-x86-64.so.3
    ;;
esac
patch -Np1 -i ../glibc-2.35-fhs-1.patch
mkdir -v build
cd       build
echo "rootsbindir=/usr/sbin" > configparms
../configure                             \
      --prefix=/usr                      \
      --host=$LFS_TGT                    \
      --build=$(../scripts/config.guess) \
      --enable-kernel=3.2                \
      --with-headers=$LFS/usr/include    \
      libc_cv_slibdir=/usr/lib
make
make DESTDIR=$LFS install
sed '/RTLDLIST=/s@/usr@@g' -i $LFS/usr/bin/ldd
echo 'int main(){}' > dummy.c
$LFS_TGT-gcc dummy.c
readelf -l a.out | grep '/ld-linux'
rm -v dummy.c a.out
$LFS/tools/libexec/gcc/$LFS_TGT/11.2.0/install-tools/mkheaders
finish

# 5.6. Libstdc++ from GCC-11.2.0, Pass 1
begin gcc-11.2.0 tar.xz
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/$LFS_TGT/include/c++/11.2.0
make
make DESTDIR=$LFS install
finish

# 6.2. M4-1.4.19
begin m4-1.4.19 tar.xz
./configure --prefix=/usr   \
            --host=$LFS_TGT \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.3. Ncurses-6.3
begin ncurses-6.3 tar.gz
sed -i s/mawk// configure
mkdir build
pushd build
  ../configure
  make -C include
  make -C progs tic
popd
./configure --prefix=/usr                \
            --host=$LFS_TGT              \
            --build=$(./config.guess)    \
            --mandir=/usr/share/man      \
            --with-manpage-format=normal \
            --with-shared                \
            --without-debug              \
            --without-ada                \
            --without-normal             \
            --enable-widec
make
make DESTDIR=$LFS TIC_PATH=$(pwd)/build/progs/tic install
echo "INPUT(-lncursesw)" > $LFS/usr/lib/libncurses.so
finish

# 6.4. Bash-5.1.16
begin bash-5.1.16 tar.gz
./configure --prefix=/usr                   \
            --build=$(support/config.guess) \
            --host=$LFS_TGT                 \
            --without-bash-malloc
make
make DESTDIR=$LFS install
ln -sv bash $LFS/bin/sh
finish

# 6.5. Coreutils-9.0
begin coreutils-9.0 tar.xz
./configure --prefix=/usr                     \
            --host=$LFS_TGT                   \
            --build=$(build-aux/config.guess) \
            --enable-install-program=hostname \
            --enable-no-install-program=kill,uptime
make
make DESTDIR=$LFS install
mv -v $LFS/usr/bin/chroot                                     $LFS/usr/sbin
mkdir -pv $LFS/usr/share/man/man8
mv -v $LFS/usr/share/man/man1/chroot.1                        $LFS/usr/share/man/man8/chroot.8
sed -i 's/"1"/"8"/'                                           $LFS/usr/share/man/man8/chroot.8
finish

# 6.6. Diffutils-3.8
begin diffutils-3.8 tar.xz
./configure --prefix=/usr --host=$LFS_TGT
make
make DESTDIR=$LFS install
finish

# 6.7. File-5.41
begin file-5.41 tar.gz
mkdir build
pushd build
  ../configure --disable-bzlib      \
               --disable-libseccomp \
               --disable-xzlib      \
               --disable-zlib
  make
popd
./configure --prefix=/usr --host=$LFS_TGT --build=$(./config.guess)
make FILE_COMPILE=$(pwd)/build/src/file
make DESTDIR=$LFS install
finish

# 6.8. Findutils-4.9.0
begin findutils-4.9.0 tar.xz
./configure --prefix=/usr                   \
            --localstatedir=/var/lib/locate \
            --host=$LFS_TGT                 \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.9. Gawk-5.1.1
begin gawk-5.1.1 tar.xz
sed -i 's/extras//' Makefile.in
./configure --prefix=/usr   \
            --host=$LFS_TGT \
            --build=$(./config.guess)
make
make DESTDIR=$LFS install
finish

# 6.10. Grep-3.7
begin grep-3.7 tar.xz
./configure --prefix=/usr   \
            --host=$LFS_TGT
make
make DESTDIR=$LFS install
finish

# 6.11. Gzip-1.11
begin gzip-1.11 tar.xz
./configure --prefix=/usr --host=$LFS_TGT
make
make DESTDIR=$LFS install
finish

# 6.12. Make-4.3
begin make-4.3 tar.gz
./configure --prefix=/usr   \
            --without-guile \
            --host=$LFS_TGT \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.13. Patch-2.7.6
begin patch-2.7.6 tar.xz
./configure --prefix=/usr   \
            --host=$LFS_TGT \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.14. Sed-4.8
begin sed-4.8 tar.xz
./configure --prefix=/usr   \
            --host=$LFS_TGT
make
make DESTDIR=$LFS install
finish

# 6.15. Tar-1.34
begin tar-1.34 tar.xz
./configure --prefix=/usr                     \
            --host=$LFS_TGT                   \
            --build=$(build-aux/config.guess)
make
make DESTDIR=$LFS install
finish

# 6.16. Xz-5.2.5
begin xz-5.2.5 tar.xz
./configure --prefix=/usr                     \
            --host=$LFS_TGT                   \
            --build=$(build-aux/config.guess) \
            --disable-static                  \
            --docdir=/usr/share/doc/xz-5.2.5
make
make DESTDIR=$LFS install
finish

# 6.17. Binutils-2.38 - Pass 2
begin binutils-2.38 tar.xz
mkdir -v build
cd       build
../configure                   \
    --prefix=/usr              \
    --build=$(../config.guess) \
    --host=$LFS_TGT            \
    --disable-nls              \
    --enable-shared            \
    --disable-werror           \
    --enable-64-bit-bfd
make
make DESTDIR=$LFS install -j1
#install -vm755 libctf/.libs/libctf.so.0.0.0 $LFS/usr/lib
finish

# 6.18. GCC-11.2.0 - Pass 2
begin gcc-11.2.0 tar.xz
tar -xf ../mpfr-4.1.0.tar.xz
mv -v mpfr-4.1.0 mpfr
tar -xf ../gmp-6.2.1.tar.xz
mv -v gmp-6.2.1 gmp
tar -xf ../mpc-1.2.1.tar.gz
mv -v mpc-1.2.1 mpc
case $(uname -m) in
  x86_64)
    sed -e '/m64=/s/lib64/lib/' -i.orig gcc/config/i386/t-linux64
  ;;
esac
mkdir -v build
cd       build
mkdir -pv $LFS_TGT/libgcc
ln -s ../../../libgcc/gthr-posix.h $LFS_TGT/libgcc/gthr-default.h
../configure                                       \
    --build=$(../config.guess)                     \
    --host=$LFS_TGT                                \
    --prefix=/usr                                  \
    CC_FOR_TARGET=$LFS_TGT-gcc                     \
    --with-build-sysroot=$LFS                      \
    --enable-initfini-array                        \
    --disable-nls                                  \
    --disable-multilib                             \
    --disable-decimal-float                        \
    --disable-libatomic                            \
    --disable-libgomp                              \
    --disable-libquadmath                          \
    --disable-libssp                               \
    --disable-libvtv                               \
    --disable-libstdcxx                            \
    --enable-languages=c,c++
make
make DESTDIR=$LFS install
ln -sv gcc $LFS/usr/bin/cc
finish