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#!/bin/bash
#
# icecream-create-env - helper script to create icecc environments(mostly for cross-compiling)
#
# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
#
# Please note, this script has been designed to work with Gentoo's crossdev, it may or may
# not work with cross-toolchains that were build differently.
#
#
# Usage: "./icecream-create-env" creates a native environment(similar to icecc --build-native)
# "./icecream-create-env CHOST" creates a cross-compile environment using the cross-toolchain created by crossdev
# Example:
# "emerge crossdev && crossdev -t sparc-unknown-linux-gnu && icecream-create-env sparc-unknown-linux"
if [ `id -u` -ne 0 ]
then
echo "Only the superuser can execute this script."
exit 1
fi
# param 1 = CHOST
prefix="${1}"
if [ -z "${prefix}" ]
then
prefix="`gcc -dumpmachine`"
fi
gccbin=`which ${prefix}-gcc 2>/dev/null`
if [ ! -e "${gccbin}" ]
then
echo "Can't find ${prefix}-gcc!"
exit 1
fi
version="`${prefix}-gcc -dumpversion`"
tmpdir=`mktemp -d`
tmpfile=`mktemp`
echo "Creating icecc environment for ${prefix}..."
mkdir -p ${tmpdir}/usr/bin
echo "Adding `which ${prefix}-as`... as /usr/bin/as"
cp -p `which ${prefix}-as` ${tmpdir}/usr/bin/as
if [ "`gcc -dumpmachine`" = "${prefix}" ]
then
echo "Adding /usr/${prefix}/gcc-bin/${version}/g++ as /usr/bin/g++..."
cp -p /usr/${prefix}/gcc-bin/${version}/g++ ${tmpdir}/usr/bin
echo "Adding /usr/${prefix}/gcc-bin/${version}/gcc as /usr/bin/gcc..."
cp -p /usr/${prefix}/gcc-bin/${version}/gcc ${tmpdir}/usr/bin
else
echo "Adding /usr/${CHOST}/${prefix}/gcc-bin/${version}/${prefix}-g++ as /usr/bin/g++..."
cp -p /usr/${CHOST}/${prefix}/gcc-bin/${version}/${prefix}-g++ ${tmpdir}/usr/bin/g++
echo "Adding /usr/${CHOST}/${prefix}/gcc-bin/${version}/${prefix}-gcc as /usr/bin/gcc..."
cp -p /usr/${CHOST}/${prefix}/gcc-bin/${version}/${prefix}-gcc ${tempdir}/usr/bin/gcc
fi
echo "Adding /usr/libexec/gcc/${prefix}/${version}/cc1 as /usr/bin/cc1..."
cp -p /usr/libexec/gcc/${prefix}/${version}/cc1 ${tmpdir}/usr/bin/
echo "Adding /usr/libexec/gcc/${prefix}/${version}/cc1plus as /usr/bin/cc1plus.."
cp -p /usr/libexec/gcc/${prefix}/${version}/cc1plus ${tmpdir}/usr/bin/
# binaries are there, now copy libs
for binary in `ls ${tmpdir}/usr/bin/`
do
for library in `ldd ${tmpdir}/usr/bin/${binary} | tr '=>' ' ' | awk '{print $1" "$2}'`
do
if [ ! -e "${tmpdir}/${library}" ] && [ -e "${library}" ]
then
echo "Adding ${library}..."
cp --parents "${library}" ${tmpdir}/
fi
done
done
# rebuild ld.so.cache
echo "Creating /etc/ld.so.cache..."
cp --parents /etc/ld.so.conf ${tmpdir}/
ldconfig -r ${tmpdir}
rm ${tmpdir}/etc/ld.so.conf
echo "Testing icecc environment..."
touch ${tmpdir}/empty.c
chroot ${tmpdir}/ /usr/bin/gcc -c /empty.c
tested=${?}
rm ${tmpdir}/empty.c
if [ "${tested}" -ne 0 ]
then
echo ""
echo "Creating icecc environment failed. Please see error message(s) above! The temporary directory is: ${tmpdir}/"
else
# pack
echo "Compressing files..."
tar -c -z -C ${tmpdir} -f ${tmpfile} `ls ${tmpdir}/`
newname="`md5sum ${tmpfile} | awk '{print $1}'`.tar.gz"
mv ${tmpfile} ${newname}
# cleanup
rm -rf ${tmpdir}
echo ""
echo "Icecc environment has been created. It has been saved as ${newname}!"
fi
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