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#!/bin/bash
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-devel/gcc-config/files/gcc-config-1.4,v 1.4 2004/10/02 12:21:18 lv Exp $
# Author: Martin Schlemmer <azarah@gentoo.org>
source /etc/init.d/functions.sh || {
echo "$0: Could not source /etc/init.d/functions.sh!"
exit 1
}
die() {
echo "$*"
exit 1
}
usage() {
cat << "USAGE_END"
Usage: gcc-config [Option] [CC Profile]
Change the current cc/gcc profile, or give info about profiles.
Options:
--use-old Use the old profile if one was selected.
--use-portage-chost Only set to given profile if its CHOST is the same
as that set for portage in /etc/make.conf (or one of
other portage config files...).
--get-current-profile Print current used gcc profile.
--list-profiles Print a list of available profiles.
--print-environ Print environment that can be used to setup things
for current gcc profile, or specified one ...
--get-bin-path Print path where binaries of given/current profile
are located.
--get-lib-path Print path where libraries of given/current profile
are located.
--get-stdcxx-incdir Print path to g++ include files of given/current
profile.
--install-toolchain Install a new cross-compiling toolchain (that does
not appear in the list of available profiles)
and create the specified profile.
The profile name is in the form of:
<CHOST>-<gcc version>
For example:
i686-pc-linux-gnu-3.2.1
USAGE_END
exit 1
}
if [ "$#" -lt 1 ]
then
usage
fi
HAVE_WHICH="no"
if [ -n "$(which which 2> /dev/null)" ]
then
HAVE_WHICH="yes"
fi
find_path() {
[ -z "$1" ] && return 0
if [ "${HAVE_WHICH}" = "yes" ]
then
local fullpath="$(which $1 2> /dev/null)"
if [ -x "${fullpath}" ]
then
echo "${fullpath}"
return 0
fi
fi
for x in /bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin
do
if [ -x "${x}/$1" -a -r "${x}/$1" ]
then
echo "${x}/$1"
return 0
fi
done
return 0
}
cmd_setup() {
# Sourcing /etc/env.d/gcc/${CC_COMP} is going to mess up
# PATH among things...
CP="$(find_path cp)"
RM="$(find_path rm)"
MV="$(find_path mv)"
LN="$(find_path ln)"
CAT="$(find_path cat)"
AWK="$(find_path gawk)"
GREP="$(find_path grep)"
FIND="$(find_path find)"
CHMOD="$(find_path chmod)"
TOUCH="$(find_path touch)"
ENV_UPDATE="$(find_path env-update)"
}
CC_COMP=""
REAL_CHOST="$(/usr/bin/python -c 'import portage; print portage.settings["CHOST"];' 2> /dev/null)"
if [ -z "${REAL_CHOST}" ]
then
eerror "$0: Could not get portage CHOST!"
return 1
fi
switch_profile() {
local MY_LDPATH=""
local GCC_PROFILES=""
local OLD_CC_COMP=""
if [ -r /etc/env.d/gcc/config ]
then
source /etc/env.d/gcc/config
if [ -n "${CURRENT}" ]
then
OLD_CC_COMP="${CURRENT}"
fi
fi
if [ "$(id -u)" -ne 0 ]
then
eerror "$0: Must be root."
exit 1
fi
ebegin "Switching to ${CC_COMP} compiler"
# Sourcing /etc/env.d/gcc/${CC_COMP} is going to mess up
# PATH among things...
cmd_setup
# Order our profiles to have the default first...
# We do this so that we can have them ordered with default
# first in /etc/ld.so.conf, as the logical is that all
# compilers for default CHOST will be used to compile stuff,
# and thus we want all their lib paths in /etc/ld.so.conf ...
GCC_PROFILES="$(${FIND} /etc/env.d/gcc/ -name "${REAL_CHOST}-*")"
GCC_PROFILES="${GCC_PROFILES/\/etc\/env.d\/gcc\/${CC_COMP}}"
GCC_PROFILES="/etc/env.d/gcc/${CC_COMP} ${GCC_PROFILES}"
# Extract all LDPATH's for our CHOST
for x in ${GCC_PROFILES}
do
if [ -f "${x}" ]
then
source "${x}"
if [ -z "${MY_LDPATH}" ]
then
if [ -d "${LDPATH}" ]
then
MY_LDPATH="${LDPATH}"
fi
else
if [ -d "${LDPATH}" ]
then
MY_LDPATH="${MY_LDPATH}:${LDPATH}"
fi
fi
fi
done
# Setup things properly again for this profile
source "/etc/env.d/gcc/${CC_COMP}"
# Setup /etc/env.d/05gcc
${AWK} '!/^STDCXX_INCDIR=|^LDPATH=/ {print $0}' \
"/etc/env.d/gcc/${CC_COMP}" > /etc/env.d/05gcc
# Add our custom LDPATH
echo "LDPATH=\"${MY_LDPATH}\"" >> /etc/env.d/05gcc
# Make sure we do not recreate /lib/cpp and /usr/bin/cc ...
# echo "DISABLE_GEN_GCC_WRAPPERS=\"yes\"" >> /etc/env.d/05gcc
echo "CURRENT=${CC_COMP}" > /etc/env.d/gcc/config
source /etc/profile
# These might not be installed, and we want to update the mtime
# for ccache and distcc anyhow ...
${RM} -f /lib/cpp
${CP} -f /usr/lib/gcc-config/wrapper /lib/cpp
for x in gcc cpp cc c++ g++ "${CHOST}-gcc" "${CHOST}-c++" "${CHOST}-g++"
do
${RM} -f "/usr/bin/${x}"
${CP} -f /usr/lib/gcc-config/wrapper "/usr/bin/${x}"
if [ "${OLD_CC_COMP}" != "${CC_COMP}" ]
then
${TOUCH} -m "/usr/bin/${x}"
fi
done
${ENV_UPDATE} &> /dev/null
eend 0
if [ "${OLD_CC_COMP}" != "${CC_COMP}" ]
then
echo
ewarn "If you intend to use the gcc from the new profile in an already"
ewarn "running shell, please remember to do:"
echo
ewarn " # source /etc/profile"
echo
fi
return 0
}
get_current_profile() {
if [ ! -f /etc/env.d/gcc/config ]
then
eerror "$0: No gcc profile is active!"
return 1
fi
source /etc/env.d/gcc/config
if [ -z "${CURRENT}" ]
then
eerror "$0: No gcc profile is active!"
return 1
fi
echo "${CURRENT}"
return 0
}
list_profiles() {
if [ ! -f /etc/env.d/gcc/config ]
then
eerror "$0: No gcc profile is active!"
return 1
fi
for x in /etc/env.d/gcc/*
do
if [ -f "${x}" -a "${x}" != "/etc/env.d/gcc/config" ]
then
echo "${x##*/}"
fi
done
}
print_environ() {
local OLDPATH="${PATH}"
source "/etc/env.d/gcc/${CC_COMP}"
echo "export PATH=\"${PATH}:${OLDPATH}\""
# if [ -z "${LD_LIBRARY_PATH}" ]
# then
# echo "export LD_LIBRARY_PATH=\"${LDPATH}\""
# else
# echo "export LD_LIBRARY_PATH=\"${LDPATH}:${LD_LIBRARY_PATH}\""
# fi
echo "export CC=\"${CC}\""
echo "export CXX=\"${CXX}\""
}
get_bin_path() {
source "/etc/env.d/gcc/${CC_COMP}"
echo "${PATH}"
return 0
}
get_lib_path() {
source "/etc/env.d/gcc/${CC_COMP}"
echo "${LDPATH}"
return 0
}
get_stdcxx_incdir() {
source "/etc/env.d/gcc/${CC_COMP}"
eerror "${LDPATH}/include/${STDCXX_INCDIR}"
return 0
}
# ===============================================================
# cross-compiler install portions
install_toolchain() {
local ADIR PADIR x
local ACCHOST="${CC_COMP%-*}"
local AGCCVERS="${CC_COMP##*-}"
local AROOT="/usr/${ACCHOST}/"
local EMERGE="/usr/bin/emerge"
local PORTDIR="$(portage_setting PORTDIR)"
[ -z "${ACCHOST}" -o -z "${AGCCVERS}" ] && \
die "Invalid profile specification"
[ -f "/etc/env.d/gcc/${CC_COMP}" ] && \
die "Toolchain is already installed, use --force"
[ "${ACCHOST}" = "${REAL_CHOST}" ] && \
echo "gcc-config should not be used to build a native toolchain"
ebegin "Installing cross-compiling toolchain for ${ACCHOST}-${AGCCVERS}"
[ -n "${ROOT}" ] && AROOT="${ROOT}${AROOT}"
einfo "Creating ${AROOT}..."
mkdir -p "${AROOT}" || die "Unable to create ${AROOT}"
# this might work....
# case ${ACCHOST} in
# i[3456]86-*) ADIR="arch-x86" ;;
# alpha-*) ADIR="arch-alpha" ;;
# arm-*) ADIR="arch-arm" ;;
# hppa-*) ADIR="arch-hppa" ;;
# mips-*) ADIR="arch-mips" ;;
# powerpc-*) ADIR="arch-powerpc" ;;
# sparc-*) ADIR="arch-sparc" ;;
# *) echo "bad CHOST spec"; exit 0 ;;
# esac
# but this gives better substring matching
if [ $(expr "${ACCHOST}" : 'i[3456]86') -eq 4 ]; then
# x86
ADIR="arch-x86"
elif [ $(expr "${ACCHOST}" : alpha) -eq 5 ]; then
# Alpha
ADIR="arch-alpha"
elif [ $(expr "${ACCHOST}" : arm) -eq 3 ]; then
# ARM
ADIR="arch-arm"
elif [ $(expr "${ACCHOST}" : hppa) -eq 4 ]; then
# HP PA-Risc
ADIR="arch-hppa"
elif [ $(expr "${ACCHOST}" : mips) -eq 4 ]; then
# MIPS
ADIR="arch-mips"
elif [ $(expr "${ACCHOST}" : powerpc) -eq 7 ]; then
# PowerPC
ADIR="arch-ppc"
elif [ $(expr "${ACCHOST}" : sparc) -eq 5 ]; then
# sparc
ADIR="arch-sparc"
else
echo "unknown CHOST=${ACCHOST} - time to hack on gcc-config"
exit 1
fi
# create the portage arch directory, if it doesn't exist
PADIR="${PORTDIR}/${ADIR}"
if [ ! -d "${PADIR}" ]; then
einfo "Creating ${PADIR} directory..."
mkdir "${PADIR}" || die "Can't create ${PADIR}"
einfo "Creating ${PADIR} symlinks..."
( cd "${PADIR}" &&
for x in sys-devel/binutils sys-devel/gcc sys-libs/glibc \
sys-kernel/linux-headers; do
ln -s ../$x
done ) || die "Unable to create symlinks in ${PADIR}"
fi
einfo "Starting on cross-binutils for ${ACCHOST}..."
ACCEPT_KEYWORDS="~x86" \
CCHOST=${ACCHOST} \
${EMERGE} ${ADIR}/binutils -p || \
die "Unable to merge cross binutils"
einfo "Cross-compiling Linux headers for ${ACCHOST} in ${AROOT}..."
ACCEPT_KEYWORDS="~x86" \
ROOT=${AROOT} \
CHOST=${ACCHOST} \
CCHOST=${ACCHOST} \
${EMERGE} ${ADIR}/linux-headers -p || \
die "Unable to merge cross headers"
einfo "Starting on initial cross-gcc for ${ACCHOST}..."
ACCEPT_KEYWORDS="~x86" \
CCHOST=${ACCHOST} \
USE=build \
${EMERGE} ">=${ADIR}/gcc-${AGCCVERS}*" -p || \
die "Unable to merge initial cross gcc"
einfo "Cross-compiling glibc for ${ACCHOST} in ${AROOT}..."
ACCEPT_KEYWORDS="~x86" \
ROOT=${AROOT} \
CHOST=${ACCHOST} \
CCHOST=${ACCHOST} \
USE="build" \
${EMERGE} ${ADIR}/glibc --nodeps -p || \
die "Unable to merge cross glibc"
einfo "Starting on full cross-gcc for ${ACCHOST}..."
ACCEPT_KEYWORDS="~x86" \
CCHOST=${ACCHOST} \
${EMERGE} ">=${ADIR}/gcc-${AGCCVERS}*" -p || \
die "Unable to merge full cross gcc"
eend 0
}
# ===============================================================
# Main program begins here
NEED_ACTION="yes"
DOIT="switch_profile"
CHECK_CHOST="no"
for x in $*
do
case "${x}" in
# Only use specified compiler if one is not already selected.
--use-old)
if get_current_profile &> /dev/null
then
CC_COMP="$(get_current_profile)"
fi
;;
--use-portage-chost)
CHECK_CHOST="yes"
;;
--get-current-profile)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="get_current_profile"
fi
;;
--list-profiles)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="list_profiles"
fi
;;
--print-environ)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="print_environ"
fi
;;
--get-bin-path)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="get_bin_path"
fi
;;
--get-lib-path)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="get_lib_path"
fi
;;
--get-stdcxx-incdir)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="get_stdcxx_incdir"
fi
;;
--install-toolchain)
if [ "${NEED_ACTION}" = "yes" ]
then
NEED_ACTION="no"
DOIT="install_toolchain"
fi
;;
--*)
eerror "$0: Invalid switch! Run $0 without parameters for help."
exit 1
;;
*)
if [ -z "${CC_COMP}" ]
then
CC_COMP="${x}"
fi
;;
esac
done
if [ \( "${DOIT}" = "install_toolchain" -o \
"${DOIT}" = "switch_profile" \) -a \
-z "${CC_COMP}" ]
then
usage
fi
if [ -z "${CC_COMP}" ]
then
if get_current_profile &> /dev/null
then
CC_COMP="$(get_current_profile)"
else
eerror "$0: No default profile setup!"
exit 1
fi
fi
if [ "${DOIT}" != "install_toolchain" -a \
\( ! -d "/usr/lib/gcc-lib/${CC_COMP%-*}/${CC_COMP##*-}" -o \
! -f "/etc/env.d/gcc/${CC_COMP}" \) ]
then
eerror "$0: Profile does not exist or invalid setting for /etc/env.d/gcc/${CC_COMP}"
#exit 1
fi
# Chosen CHOST are not the same as the real CHOST according to make.conf,
# and --use-portage-chost option was given, so do nothing ...
if [ "${CHECK_CHOST}" = "yes" -a "${CC_COMP%-*}" != "${REAL_CHOST}" ]
then
exit 0
fi
eval ${DOIT}
# vim:ts=4
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