gcc-script.sh

#!/bin/bash
################################################################################
##
## Filename:	gcc-script.sh
## {{{
## Project:	Zip CPU -- a small, lightweight, RISC CPU soft core
##
## Purpose:	To handle all of the GCC configuration options properly.  This
##		runs the GCC configure script, using options known to work
##	with the ZipCPU.
##
##
## Creator:	Dan Gisselquist, Ph.D.
##		Gisselquist Technology, LLC
##
################################################################################
## }}}
## Copyright (C) 2016-2024, Gisselquist Technology, LLC
## {{{
## This program is free software (firmware): you can redistribute it and/or
## modify it under the terms of  the GNU General Public License as published
## by the Free Software Foundation, either version 3 of the License, or (at
## your option) any later version.
##
## This program is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
## for more details.
##
## License:	GPL, v3, as defined and found on www.gnu.org,
##		http://www.gnu.org/licenses/gpl.html
##
##
################################################################################
##
## }}}
VERSION=gcc-10.3.0
ZVERSION=${VERSION}-zip

## Download a copy of GCC and expand a directory filled with it
## {{{
if [[ ! -d $ZVERSION ]]
then
  if [[ ! -e ${VERSION}.tar.xz ]]
  then
    wget http://mirror.rit.edu/gnu/gcc/${VERSION}/${VERSION}.tar.xz
  fi

  tar -xaf ./$VERSION.tar.xz --transform s,$VERSION,$ZVERSION,
  if [[ -e gcc-zippatch.patch ]]
  then
    cd ${ZVERSION}
    patch -p1 <../gcc-zippatch.patch
    cd ..
  else
    echo "No Patch file!"
    exit -1;
  fi
  if [[ -d build-gcc ]]
  then
    # Remove any incomplete build projects from ... possibly other versions
    # This way we can reuse the build directory
    rm -rf build-gcc/
  fi
fi
## }}}

## INSTALLD: Set up the installation directory
## {{{
set +h
set -e
CLFS_HOST=$MACHTYPE
CLFS_TARGET="zip"
if [[ -z "$INSTALLD" ]]
then
  INSTALLD=`pwd`/install
fi
## }}}

## Check for an available assembler
## {{{
if [[ ! $(which zip-as) ]]
then
  echo "GCC-script ERROR: Unable to find zip-as, the ZipCPU assembler, in your path"
  exit -1
fi
## }}}

## INSTALL_BASE: Make sure the installation/build subdirectories exist
## {{{
INSTALL_BASE=${INSTALLD}
mkdir -p ${INSTALL_BASE}/cross-tools
mkdir -p ${INSTALL_BASE}/tools/lib
mkdir -p ${INSTALL_BASE}/usr/include
mkdir -p build-gcc
## }}}

cd build-gcc

AS_FOR_TARGET=${INSTALL_BASE}/cross-tools/bin/zip-as
AR_FOR_TARGET=${INSTALL_BASE}/cross-tools/bin/zip-ar
NM_FOR_TARGET=${INSTALL_BASE}/cross-tools/bin/zip-nm
LD_FOR_TARGET=${INSTALL_BASE}/cross-tools/bin/zip-ld

## Configure GCC for a build
## {{{
../$ZVERSION/configure --with-gas			\
        --prefix=${INSTALL_BASE}/cross-tools		\
        --target=${CLFS_TARGET}				\
        --with-pkgversion=zip-gcc-`date +%y%m%d`	\
        --disable-multilib				\
        --disable-threads --disable-tls			\
        --enable-checking --disable-nls			\
        --with-newlib
## }}}

echo $PATH | grep ${INSTALL_BASE}/cross-tools/bin \
	|| export PATH=$PATH:${INSTALL_BASE}/cross-tools/bin