#!/usr/local/bin/bash

tce-load -i compiletc.tcz bash.tcz coreutils.tcz mpc-dev.tcz gmp-dev.tcz mpfr-dev.tcz isl-dev.tcz \
            squashfs-tools.tcz

export CFLAGS="-Os -march=armv8-a+crc -mtune=cortex-a72 -use-ld=gold -lpthread"
export CXXFLAGS="-Os -march=armv8-a+crc -mtune=cortex-a72 -use-ld=gold"

SRCNAM=gcc-10.2.0.tar.xz
WRKDIR=gcc-10.2.0
EXTNAM=gcc
TMPDIR=/tmp/$EXTNAM

tar xf $SRCNAM

cd $WRKDIR

sed -e '/lp64=/s/lib64/lib/' -i.orig gcc/config/aarch64/t-aarch64-linux

mkdir build && cd build

# Configure

../configure \
--libdir=/usr/lib \
--libexecdir=/usr/local/lib \
--enable-shared \
--enable-threads=posix \
--enable-__cxa_atexit \
--enable-c99 \
--enable-long-long \
--enable-clocale=gnu \
--enable-languages=c,c++ \
--disable-multilib \
--disable-libstdcxx-pch \
--enable-cloog-backend=isl \
--with-isl=/usr/local \
--with-mpfr=/usr/local \
--with-gmp=/usr/local \
--with-mpc=/usr/local \
--with-system-zlib \
--enable-frame-pointer \
--disable-bootstrap \
--enable-lto \
--with-pkgversion=piCore64 \
--enable-fix-cortex-a53-843419 \
--with-gxx-include-dir=/usr/include/c++/10.2.0

# Build

make -j4

make install DESTDIR=/tmp/gcc

# remove copies and install links
rm -f $TMPDIR/usr/local/bin/gcc
rm -f $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-gcc
rm -f $TMPDIR/usr/local/bin/g++
rm -f $TMPDIR/usr/local/bin/c++
rm -f $TMPDIR/usr/local/bin/cpp
rm -f $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-c++
rm -f $TMPDIR/usr/local/bin/gcc-ar
rm -f $TMPDIR/usr/local/bin/gcc-nm
rm -f $TMPDIR/usr/local/bin/gcc-ranlib

ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-gcc-10.2.0 $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-gcc
ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-gcc-10.2.0 $TMPDIR/usr/local/bin/gcc
ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-gcc-10.2.0 $TMPDIR/usr/local/bin/cc
ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-g++ $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-c++
ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-g++ $TMPDIR/usr/local/bin/g++
ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-g++ $TMPDIR/usr/local/bin/c++
ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-g++ $TMPDIR/usr/local/bin/cpp
ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-gcc-ar $TMPDIR/usr/local/bin/gcc-ar
ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-gcc-nm  $TMPDIR/usr/local/bin/gcc-nm
ln -sr $TMPDIR/usr/local/bin/aarch64-unknown-linux-gnu-gcc-ranlib  $TMPDIR/usr/local/bin/gcc-ranlib
# Adjust directory access rigths

find $TMPDIR/ -type d | xargs chmod -v 755;

# Strip executables

find $TMPDIR | xargs file | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded

mkdir ${TMPDIR}_base
mkdir ${TMPDIR}_base-dev
mkdir ${TMPDIR}_libs-dev
mkdir ${TMPDIR}_libs
mkdir -p ${TMPDIR}-locale/usr/local/share
mkdir -p ${TMPDIR}-doc/usr/local/share

#move docs to doc extension
mv -f ${TMPDIR}/usr/local/share/man ${TMPDIR}-doc/usr/local/share
#move locale to extension
mv -f ${TMPDIR}/usr/local/share/locale ${TMPDIR}-locale/usr/local/share

#remove info files
rm -rf ${TMPDIR}/usr/local/share/info

#move files to the base-dev extension
mkdir -p ${TMPDIR}_base-dev/usr/lib
mkdir -p ${TMPDIR}_base-dev/usr/local
mv -f  ${TMPDIR}/usr/local/share ${TMPDIR}_base-dev/usr/local
mv -f ${TMPDIR}/usr/lib/libstdc++.a ${TMPDIR}_base-dev/usr/lib
mv -f ${TMPDIR}/usr/lib/libstdc++.la ${TMPDIR}_base-dev/usr/lib
mv -f ${TMPDIR}/usr/lib/libstdc++*.py ${TMPDIR}_base-dev/usr/lib

#move libs that will be in the base
mkdir -p ${TMPDIR}_base/usr/lib
mv -f ${TMPDIR}/usr/lib/libgcc*.so* ${TMPDIR}_base/usr/lib
mv -f ${TMPDIR}/usr/lib/libstdc++*.so* ${TMPDIR}_base/usr/lib

#move libs to lib extension
mkdir -p ${TMPDIR}_libs/usr/lib
mv ${TMPDIR}/usr/lib/*.so* ${TMPDIR}_libs/usr/lib

#Move libs-dev to extension
mkdir -p ${TMPDIR}_libs-dev/usr/lib
mv ${TMPDIR}/usr/lib/lib* ${TMPDIR}_libs-dev/usr/lib

rmdir $TMPDIR/usr/local/include

###################################################
# Create base extension in temp dir               #
###################################################

cd $TMPDIR
cd ..
mksquashfs $TMPDIR $EXTNAM.tcz
cd $TMPDIR
find usr -not -type d > $EXTNAM.tcz.list
mv ../$EXTNAM.tcz .

# Create md5 file

md5sum $EXTNAM.tcz > $EXTNAM.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr


###################################################
# Create _libs extension in temp dir               #
###################################################

cd ${TMPDIR}_libs
cd ..
mksquashfs ${TMPDIR}_libs ${EXTNAM}_libs.tcz
cd ${TMPDIR}_libs
find usr -not -type d > ${EXTNAM}_libs.tcz.list
mv ../${EXTNAM}_libs.tcz .

# Create md5 file

md5sum ${EXTNAM}_libs.tcz > ${EXTNAM}_libs.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr

###################################################
# Create _libs-dev extension in temp dir               #
###################################################

cd ${TMPDIR}_libs-dev
cd ..
mksquashfs ${TMPDIR}_libs-dev ${EXTNAM}_libs-dev.tcz
cd ${TMPDIR}_libs-dev
find usr -not -type d > ${EXTNAM}_libs-dev.tcz.list
mv ../${EXTNAM}_libs-dev.tcz .

# Create md5 file

md5sum ${EXTNAM}_libs-dev.tcz > ${EXTNAM}_libs-dev.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr


###################################################
# Create _base-dev extension in temp dir               #
###################################################

cd ${TMPDIR}_base-dev
cd ..
mksquashfs ${TMPDIR}_base-dev ${EXTNAM}_base-dev.tcz
cd ${TMPDIR}_base-dev
find usr -not -type d > ${EXTNAM}_base-dev.tcz.list
mv ../${EXTNAM}_base-dev.tcz .

# Create md5 file

md5sum ${EXTNAM}_base-dev.tcz > ${EXTNAM}_base-dev.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr


###################################################
# Create locale extension in temp dir             #
###################################################

cd $TMPDIR-locale
cd ..
mksquashfs $TMPDIR-locale $EXTNAM-locale.tcz
cd $TMPDIR-locale
find usr -not -type d > $EXTNAM-locale.tcz.list
mv ../$EXTNAM-locale.tcz .

# Create md5 file

md5sum $EXTNAM-locale.tcz > $EXTNAM-locale.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr


###################################################
# Create doc extension in temp dir                #
###################################################

cd $TMPDIR-doc
cd ..
mksquashfs $TMPDIR-doc $EXTNAM-doc.tcz
cd $TMPDIR-doc
find usr -not -type d > $EXTNAM-doc.tcz.list
mv ../$EXTNAM-doc.tcz .

# Create md5 file

md5sum $EXTNAM-doc.tcz > $EXTNAM-doc.tcz.md5.txt

# Cleanup temp directory

rm -r -f usr

###################################################
# Tar up the base files                           #
###################################################

cd ${TMPDIR}_base
tar zcvf gcc_base.tar.gz usr/

# Cleanup temp directory

rm -r -f usr