diff options
Diffstat (limited to 'sys-devel/binutils-config/files/binutils-config-4')
| -rwxr-xr-x | sys-devel/binutils-config/files/binutils-config-4 | 465 |
1 files changed, 465 insertions, 0 deletions
diff --git a/sys-devel/binutils-config/files/binutils-config-4 b/sys-devel/binutils-config/files/binutils-config-4 new file mode 100755 index 000000000000..18fc00d87110 --- /dev/null +++ b/sys-devel/binutils-config/files/binutils-config-4 @@ -0,0 +1,465 @@ +#!/bin/bash +# Copyright 1999-2015 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Id$ + +# Format of /etc/env.d/binutils/: +# config-TARGET: CURRENT=version for TARGET +# TARGET-VER: has a TARGET and VER variable + +: ${ROOT:=/} +[[ ${ROOT} != */ ]] && ROOT="${ROOT}/" +[[ ${ROOT} != /* ]] && ROOT="${PWD%/}/${ROOT}" + +cd / + +trap ":" INT QUIT TSTP + +argv0=${0##*/} +FUNCTIONS_SH="/lib/gentoo/functions.sh" +source ${FUNCTIONS_SH} || { + echo "${argv0}: Could not source ${FUNCTIONS_SH}!" 1>&2 + exit 1 +} +esyslog() { :; } +die() { eerror "${argv0}: $*"; exit 1; } +umask 022 + +usage() { +cat << USAGE_END +Usage: ${HILITE}binutils-config${NORMAL} ${GOOD}[options]${NORMAL} ${BRACKET}[binutils profile]${NORMAL} + +${HILITE}General Options:${NORMAL} + ${GOOD}-c, --get-current-profile${NORMAL} Print current profile + ${GOOD}-l, --list-profiles${NORMAL} Print a list of available profiles + ${GOOD}-u, --uninstall${NORMAL} Remove all signs of specified target + ${GOOD}-d, --debug${NORMAL} Execute with debug output + +${HILITE}General Cruft:${NORMAL} + ${GOOD}--linker${NORMAL} <linker> Switch to specified linker (if supported) + +Profile names are of the form: ${BRACKET}<CTARGET>-<binutils version>${NORMAL} +For example: ${BRACKET}i686-pc-linux-gnu-2.15.92.0.2${NORMAL} + +For more info, please see ${HILITE}binutils-config${NORMAL}(8). +USAGE_END + + exit ${1:-1} +} + +mv_if_diff() { + if cmp -s "$1" "$2" ; then + rm -f "$1" + else + mv -f "$1" "$2" + fi +} +atomic_ln() { + local target=$1 linkdir=$2 linkname=$3 linktmp linkfull + linktmp="${linkdir}/.binutils-config.tmp.${linkname}" + linkfull="${linkdir}/${linkname}" + if [[ -d ${linkfull} ]] ; then + # if linking to a dir, we need a little magic to + # make it atomic since `mv -T` is not portable + rm -rf "${linktmp}" + mkdir -p "${linktmp}" + ln -sf "${target}" "${linktmp}/${linkname}" + mv "${linktmp}/${linkname}" "${linktmp}/../" + rmdir "${linktmp}" + else + # `ln` will expand into unlink();symlink(); which + # is not atomic for a small amount of time, but + # `mv` is a single rename() call + ln -sf "${target}" "${linktmp}" + mv "${linktmp}" "${linkfull}" + fi +} + +setup_env() { + unset TARGET VER LIBPATH + source "${ENV_D}/${PROFILE}" + if [[ -z ${TARGET} ]] ; then + eerror "${PROFILE} is invalid (no \$TARGET defined) :(" + return 1 + fi + if [[ -z ${VER} ]] ; then + eerror "${PROFILE} is invalid (no \$VER defined) :(" + return 1 + fi + + # + # Generate binary symlinks + # + BINPATH="" + BINPATH_LINKS="" + if [[ ${TARGET} != ${HOST} ]] ; then + # + # Newer paths: /usr/${HOST}/${TARGET}/... + # Older paths: /usr/${TARGET}/... + # + if [[ -d ${ROOT}/usr/${HOST}/${TARGET}/binutils-bin/${VER} ]] ; then + BINPATH=/usr/${HOST}/${TARGET}/binutils-bin/${VER} + BINPATH_LINKS=/usr/libexec/gcc/${TARGET} + fi + fi + if [[ -z ${BINPATH} ]] ; then + BINPATH=/usr/${TARGET}/binutils-bin/${VER} + BINPATH_LINKS=/usr/${TARGET}/bin + fi +} + +switch_profile() { + ebegin "Switching to ${PROFILE}" + + setup_env || return 1 + + cd "${ROOT}/${BINPATH}" || exit 1 + mkdir -p "${ROOT}/${BINPATH_LINKS}" "${ROOT}/usr/bin" + for x in * ; do + atomic_ln "${BINPATH}/${x}" "${ROOT}/${BINPATH_LINKS}" "${x}" + atomic_ln "${BINPATH_LINKS}/${x}" "${ROOT}/usr/bin" "${TARGET}-${x}" + if [[ ${TARGET} == ${HOST} ]] ; then + atomic_ln "${TARGET}-${x}" "${ROOT}/usr/bin" "${x}" + fi + done + + # + # Generate library / ldscripts symlinks + # + : ${LIBPATH:=/usr/lib/binutils/${TARGET}/${VER}} + cd "${ROOT}/${LIBPATH}" || exit 1 + if [[ ${TARGET} == ${HOST} ]] ; then + dstlib=${ROOT}/usr/${HOST}/lib + else + dstlib=${ROOT}/usr/${HOST}/${TARGET}/lib + fi + # When upgrading, we need to clean up ldscripts and libs + mkdir -p "${dstlib}" + rm -rf "${ROOT}/${BINPATH_LINKS}"/ldscripts + atomic_ln "${LIBPATH}/ldscripts" "${dstlib}" "ldscripts" + find -L "${dstlib}" -type l -exec rm -v {} + + for x in lib* ; do + atomic_ln "${LIBPATH}/${x}" "${dstlib}" "${x}" + done + + # + # Generate include symlinks + # + INCPATH=${LIBPATH}/include + if [[ -d ${ROOT}/${INCPATH} ]] ; then + cd "${ROOT}/${INCPATH}" || exit 1 + if [[ ${HOST} == ${TARGET} ]] ; then + mkdir -p "${ROOT}/usr/include" + for x in * ; do + atomic_ln "${INCPATH}/${x}" "${ROOT}/usr/include" "${x}" + done + else + # Clean out old path -- cannot use '-exec {} +' syntax here + find . -type f -exec rm -f "${ROOT}/usr/${TARGET}/usr/include/{}" \; + rmdir "${ROOT}/usr/${TARGET}/usr/include" >& /dev/null + rmdir "${ROOT}/usr/${TARGET}/usr" >& /dev/null + rmdir "${ROOT}/usr/${TARGET}" >& /dev/null + fi + fi + + # + # Make sure proper paths get updated + # + if [[ ${TARGET} == ${HOST} ]] ; then + DATAPATH=/usr/share/binutils-data/${TARGET}/${VER} + local e="${ROOT}"/etc/env.d/05binutils + local ee="${e}.tmp" + rm -f "${ee}" + [[ -d ${ROOT}/${DATAPATH}/man ]] && echo "MANPATH=${DATAPATH}/man" >> "${ee}" + [[ -d ${ROOT}/${DATAPATH}/info ]] && echo "INFOPATH=${DATAPATH}/info" >> "${ee}" + # hmm, `ld` has this in SEARCH_DIR(), but ld.so does not ... + if [[ -d ${ROOT}/etc/ld.so.conf.d ]] ; then + local l="${ROOT}"/etc/ld.so.conf.d/05binutils.conf + local ll="${l}.tmp" + echo "/usr/${TARGET}/lib" > "${ll}" + mv_if_diff "${ll}" "${l}" + else + echo "LDPATH=/usr/${TARGET}/lib" >> "${ee}" + fi + mv_if_diff "${ee}" "${e}" + fi + + local c="${ENV_D}/config-${TARGET}" + local cc="${c}.tmp" + echo "CURRENT=${VER}" > "${cc}" + mv_if_diff "${cc}" "${c}" + + eend 0 + + # + # Regen env.d if need/can be + # + if [[ ${ROOT} == "/" ]] && [[ ${TARGET} == ${HOST} ]] ; then + env-update + echo + ewarn "Please remember to run:" + echo + ewarn " # . /etc/profile" + echo + fi + + return 0 +} + +uninstall_target() { + : ${TARGET:=${UARG}} + + if [[ ${TARGET} == ${HOST} ]] ; then + die "refusing to uninstall native binutils" + fi + + shopt -s nullglob + PROFILE="" + + for PROFILE in "${ENV_D}"/${TARGET}-* ; do + ewarn "Removing all signs of ${PROFILE##*/}" + rm -f "${ENV_D}"/${PROFILE} + done + if [[ -z ${PROFILE} ]] && [[ ! -e ${ENV_D}/config-${TARGET} ]] ; then + die "no profiles exist for '${TARGET}'" + fi + + rm -f "${ENV_D}"/config-${TARGET} + + local x + for x in \ + addr2line ar as c++filt elf2flt elfedit flthdr gprof \ + ld ld.{bfd,gold,real} \ + nm objcopy objdump ranlib readelf size strings strip + do + x=( + "${ROOT}"/usr/bin/${TARGET}-${x} + "${ROOT}"/usr/{${HOST}/,}${TARGET}/bin/${x} + "${ROOT}"/usr/libexec/gcc/${TARGET}/${x} + ) + rm -f "${x[@]}" + done + for x in ansidecl.h bfd.h bfdlink.h dis-asm.h symcat.h ; do + rm -f "${ROOT}"/usr/{${HOST}/,}${TARGET}/{usr/,}include/${x} + done + for x in bfd iberty opcodes ; do + rm -f "${ROOT}"/usr/${HOST}/${TARGET}/lib/lib${x}{{-*,}.so,.a,.la} + done + # Delete broken symlinks + local destdir="${ROOT}/usr/${HOST}/${TARGET}" + rm -f "${destdir}"/lib/ldscripts + find -L "${destdir}"/lib -type l -exec rm {} + + rmdir \ + "${destdir}"/{bin,include,lib,usr} \ + "${destdir}" \ + "${ROOT}"/var/db/pkg/cross-${TARGET} \ + "${ROOT}"/usr/{${HOST}/,}${TARGET}/bin \ + "${ROOT}"/usr/libexec/gcc/${TARGET} \ + 2>/dev/null + + rm -f "${ENV_D}"/${TARGET}-* +} + +set_current_profile() { + if [[ ! -f ${ENV_D}/config-${TARGET} ]] ; then + eerror "${argv0}: unable to locate a profile for target: ${TARGET}" + return 1 + fi + + source "${ENV_D}/config-${TARGET}" + + if [[ -z ${CURRENT} ]] ; then + eerror "${argv0}: no binutils profile is active!" + return 1 + fi + + echo "${TARGET}-${CURRENT}" + + return 0 +} +get_current_profile() { echo "${PROFILE}" ; } + +list_profiles() { + local x i target + + if [[ ${ROOT} != / ]] ; then + echo "Using binutils-config info in ${ROOT}" + fi + + set -- "${ENV_D}"/* + target= + i=1 + + for x ; do + # skip broken links and config files + [[ -f ${x} ]] || continue + [[ ${x} == */config-* ]] && continue + + source "${x}" + if [[ ${target} != ${TARGET} ]] ; then + [[ -n ${target} ]] && echo + target=${TARGET} + fi + + x=${x##*/} + if [[ -e ${ENV_D}/config-${TARGET} ]] ; then + source "${ENV_D}/config-${TARGET}" + if [[ ${VER} == ${CURRENT} ]] ; then + [[ ${TARGET} == ${HOST} ]] \ + && x="${x} ${GOOD}*${NORMAL}" \ + || x="${x} ${HILITE}*${NORMAL}" + fi + fi + + # We would align the [...] field like so: + #printf ' [%*ss] %s\n' ${##} "${i}" "${x}" + # but this breaks simple scripting: `binutils -l | awk '{print $2}'` + + # Or we could align the target col like so: + #printf ' [%s]%*s %s\n' "${i}" $(( ${##} - ${#i} )) "" "${x}" + # but i'm not sold that it looks better + + # So keep it simple ... only makes a diff anyways for crazy people + # like me which have 100+ binutils packages installed ... + echo " [$i] ${x}" + ((++i)) + done +} + +switch_linker() { + local bpath ld=$1 + + case ${ld} in + ld.*) ;; + *) die "not supported: linker must start with 'ld.'" ;; + esac + + setup_env || return 1 + bpath="${ROOT}/${BINPATH}" + + # does this binutils even support the requested linker ? + if [[ ! -e ${bpath}/${ld} ]] ; then + die "sorry, but ${PROFILE} doesn't support the ${ld} linker" + fi + + # switch it up + ebegin "Setting default linker to ${ld} for ${PROFILE}" + atomic_ln ${ld} "${bpath}" ld + eend $? +} + +set_HOST() { + # Set HOST to CHOST if it isn't already set + : ${HOST:=${CHOST:-$(portageq envvar CHOST)}} +} + +ENV_D="${ROOT}etc/env.d/binutils" + +DEBUG="no" +NEED_ACTION="yes" +DOIT="switch_profile" +PROFILE="current" +HOST="" +TARGET="" +unset UARG + +select_action() { + if [[ ${NEED_ACTION} != "no" ]] ; then + NEED_ACTION="no" + DOIT=$1 + else + die "one action at a time!" + fi +} + +while [[ $# -gt 0 ]] ; do + x=$1 + shift + case ${x} in + -c|--get-current-profile) select_action get_current_profile ;; + -l|--list|--list-profiles) select_action list_profiles ;; + -u|--uninstall) select_action uninstall_target ;; + --linker) select_action "switch_linker $1"; shift ;; + -d|--debug) DEBUG="yes" ;; + -h|--help) usage 0 ;; + -V|--version) + unset Header + cvsver="$Id$" + cvsver=${cvsver##*binutils-config-} + bver=${cvsver%%,v *} + cvsver=${cvsver#* } + echo "binutils-config-${bver} (r${cvsver%% *})" + exit 0 + ;; + -*) + die "invalid switch! Try '--help'." + ;; + *) + if [[ ${UARG+set} == "set" ]] ; then + die "only one profile/target at a time please" + fi + NEED_ACTION="maybe" + UARG=${x} + ;; + esac +done + +[[ ${NEED_ACTION} == "yes" ]] && usage 1 +[[ ${DEBUG} == "yes" ]] && set -x + +# All operations need to know the current HOST to figure out +# what is a native target and what is a cross target +set_HOST + +# All operations need to know the profile the user wants +case ${DOIT} in +switch_profile|switch_linker_*) + # decode user's profile choice + x=${UARG:-$(TARGET=${HOST} set_current_profile)} + PROFILE="" + if [[ -z $(echo ${x} | tr -d '[:digit:]') ]] ; then + # User gave us a # representing the profile + i=1 + for y in "${ENV_D}"/* ; do + [[ ${y/config-} != ${y} ]] && continue + + if [[ -f ${y} ]] && [[ ${x} -eq ${i} ]] ; then + PROFILE=${y##*/} + break + fi + ((++i)) + done + fi + + if [[ -z ${PROFILE} ]] ; then + # User gave us a full HOST-ver + x=${x##*/} + if [[ -f ${ENV_D}/${x} ]] ; then + # Valid HOST-ver yeah! + PROFILE=${x} + else + # Not a valid HOST-ver ... + if [[ ! -f ${ENV_D}/config-${x} ]] ; then + # Maybe they just gave us a ver ... + if [[ -f ${ENV_D}/${HOST}-${x} ]] ; then + x=${HOST}-${x} + else + die "could not locate '$x' in '${ENV_D}/'!" + fi + PROFILE=${x} + else + # Maybe they just gave us a target ... pick active profile + PROFILE=$(TARGET=${x} set_current_profile) + fi + fi + fi + ;; +*) + # lookup current profile as the user gave us a target + PROFILE=$(TARGET=${UARG:-${HOST}} set_current_profile) || exit 1 + ;; +esac + +eval ${DOIT} + +# vim:ts=4 |