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|
#!/bin/bash
# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# Format of /etc/env.d/binutils/:
# config-TARGET: CURRENT=version for TARGET
# TARGET-VER: has a TARGET and VER variable
EPREFIX="@GENTOO_EPREFIX@"
if [[ ${EPREFIX} == "@"GENTOO_EPREFIX"@" ]] ; then
EPREFIX=""
fi
: ${ROOT:=/}
[[ ${ROOT} != */ ]] && ROOT="${ROOT}/"
[[ ${ROOT} != /* ]] && ROOT="${PWD%/}/${ROOT}"
EROOT="${ROOT%/}${EPREFIX}/"
cd "${EPREFIX}/"
trap ":" INT QUIT TSTP
argv0=${0##*/}
FUNCTIONS_SH="${EPREFIX}/lib/gentoo/functions.sh"
source ${FUNCTIONS_SH} || {
echo "${argv0}: Could not source ${FUNCTIONS_SH}!" 1>&2
exit 1
}
esyslog() { :; }
die() { eerror "${argv0}: $*"; exit 1; }
umask 022
# *BSD SED does not work as-is, use GNU SED. TODO: find details.
SED=$(type -P gsed)
: ${SED:=$(type -P sed)}
usage() {
cat << USAGE_END
Usage: ${HILITE}binutils-config${NORMAL} ${GOOD}[options]${NORMAL} ${BRACKET}[binutils profile]${NORMAL}
${HILITE}General Options:${NORMAL}
${GOOD}-C, --nocolor${NORMAL} Disable color output
${GOOD}-c, --get-current-profile${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
${GOOD}-B, --get-bin-path${NORMAL} Print path where binaries of the given/current
profile are located.
${GOOD}-L, --get-lib-path${NORMAL} Print path where libraries of the given/current
profile are located.
Profile names are of the form: ${BRACKET}<CTARGET>-<binutils version>${NORMAL}, ${BRACKET}latest${NORMAL},
${BRACKET}<CTARGET>-latest${NORMAL}, ${BRACKET}latest${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}
}
# Usage: version_sorted_paths <CHOST>
# Returns paths ordered by version from olders to newest.
# We use the following hack: assume the input containst digits only in places of versions
# Normalizer:
# echo "hello-world-1.2.3.444.56778" | ${SED} -e 's/[0-9]\+/0000&/g' | ${SED} -e 's/0*\([0-9]\{4\}\)/\1/g'
# hello-world-0001.0002.0003.0444.56778
# That way we can have 9.0 < 10.0 order.
# TODO: explore how portable 'sort -V' is and try using that instead.
version_sorted_paths() {
local p mangled_v
for p in "$@"; do
# TODO: avoid -r
mangled_v=$(printf "%s" "${p}" |
${SED} -e 's/[0-9]\+/0000&/g' |
${SED} -e 's/0*\([0-9]\{4\}\)/\1/g'
)
printf "%s %s\n" "${mangled_v}" "${p}"
done | LANG=C sort | $SED -e 's/^.* //g'
}
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 "${EROOT}"/usr/${HOST}/${TARGET}/binutils-bin/${VER} ]] ; then
BINPATH="${EPREFIX}"/usr/${HOST}/${TARGET}/binutils-bin/${VER}
BINPATH_LINKS="${EPREFIX}"/usr/libexec/gcc/${TARGET}
fi
fi
if [[ -z ${BINPATH} ]] ; then
BINPATH="${EPREFIX}"/usr/${TARGET}/binutils-bin/${VER}
BINPATH_LINKS="${EPREFIX}"/usr/${TARGET}/bin
fi
}
# Lists of headers that various versions have installed.
HEADERS=(
ansidecl.h bfd.h bfdlink.h demangle.h dis-asm.h dyn-string.h
fibheap.h hashtab.h libiberty.h objalloc.h plugin-api.h
splay-tree.h symcat.h
)
switch_profile() {
local x
ebegin "Switching to ${PROFILE}"
setup_env || return 1
# Facts on binutils's private binary dir contents:
#
# Native directory looks like:
# /usr/x86_64-pc-linux-gnu/binutils-bin/2.34
# Contents are unprefixed tools:
# - ar, as, nm, ...
#
# Cross directory looks like:
# /usr/x86_64-pc-linux-gnu/ia64-unknown-linux-gnu/binutils-bin/2.34
# Contents are also unprefixed tools:
# - ar, as, nm, ...
cd "${ROOT}/${BINPATH}" || exit 1
mkdir -p "${ROOT}/${BINPATH_LINKS}" "${EROOT}/usr/bin"
for x in * ; do
atomic_ln "${BINPATH}/${x}" "${ROOT}/${BINPATH_LINKS}" "${x}"
atomic_ln "${BINPATH_LINKS}/${x}" "${EROOT}/usr/bin" "${TARGET}-${x}"
if [[ ${TARGET} == ${HOST} ]] ; then
if [[ ${USE_NATIVE_LINKS} == yes ]]; then
atomic_ln "${TARGET}-${x}" "${EROOT}/usr/bin" "${x}"
else
# Remove native links if exist from previous
# installations or set by user manually. binutils-config
# owns these symlinks.
#
# TODO: cleanup symlinks not just known to this
# release/configuration of binutils, but also list
# all possible ones.
rm -f "${EROOT}/usr/bin/${x}"
fi
fi
done
#
# Generate library / ldscripts symlinks
#
: ${LIBPATH:=${EPREFIX}/usr/lib/binutils/${TARGET}/${VER}}
cd "${ROOT}/${LIBPATH}" || exit 1
if [[ ${TARGET} == ${HOST} ]] ; then
dstlib=${EROOT}/usr/${HOST}/lib
else
dstlib=${EROOT}/usr/${HOST}/${TARGET}/lib
fi
# When upgrading, we need to clean up ldscripts and libs.
# Don't symlink back in the libs -- the binutils-lib package handles
# these now.
# TODO: Stop requiring even the ldscripts symlink.
mkdir -p "${dstlib}"
rm -rf "${ROOT}/${BINPATH_LINKS}"/ldscripts
atomic_ln "${LIBPATH}/ldscripts" "${dstlib}" "ldscripts"
find -L "${dstlib}" -xtype l -name 'lib*' -delete
# Detect older binutils w/broken rpaths. #562460
# We can hardcode the "/lib" part since that's what the binutils
# configure scripts have. They did not include any other path.
if [[ $(scanelf -qF '%r#F' "${ROOT}/${BINPATH}/as") == */lib ]] ; then
ewarn "Old cross-binutils detected; please re-emerge to fix (see bug #562460)."
for x in lib* ; do
atomic_ln "${LIBPATH}/${x}" "${dstlib}" "${x}"
done
fi
#
# Clean out old generated include symlinks
#
INCPATH=${LIBPATH}/include
if [[ -d ${ROOT}/${INCPATH} ]] ; then
cd "${ROOT}/${INCPATH}" || exit 1
if [[ ${HOST} != ${TARGET} ]] ; then
# Clean out old path -- cannot use '-exec {} +' syntax here
find . -type f -exec rm -f "${EROOT}/usr/${TARGET}/usr/include/{}" \;
rmdir "${EROOT}/usr/${TARGET}/usr/include" >& /dev/null
rmdir "${EROOT}/usr/${TARGET}/usr" >& /dev/null
rmdir "${EROOT}/usr/${TARGET}" >& /dev/null
fi
fi
#
# Make sure proper paths get updated
#
local env_update_flag="--no-ldconfig"
if [[ ${TARGET} == ${HOST} ]] ; then
# Delete old config now that binutils-libs installs these files.
# Note: This skips ldconfig update if env.d had LDPATH, but meh.
# Most people have upgraded to ld.so.conf.d, and someone else will
# eventually re-run ldconfig for us.
x="${EROOT}"/etc/ld.so.conf.d/05binutils.conf
if [[ -e ${x} ]]; then
rm -f "${x}"
env_update_flag=""
fi
DATAPATH="${EPREFIX}"/usr/share/binutils-data/${TARGET}/${VER}
local e="${EROOT}"/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}"
[[ -e "${ee}" ]] && mv_if_diff "${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 ${env_update_flag}
echo
ewarn "Please remember to run:"
echo
ewarn " # . ${EPREFIX}/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-${TARGET}
local x
for x in \
addr2line ar as c++filt dwp elf2flt elfedit flthdr gprof \
ld ld.{bfd,gold,real} \
nm objcopy objdump ranlib readelf size strings strip
do
x=(
"${EROOT}"/usr/bin/${TARGET}-${x}
"${EROOT}"/usr/{${HOST}/,}${TARGET}/bin/${x}
"${EROOT}"/usr/libexec/gcc/${TARGET}/${x}
)
rm -f "${x[@]}"
done
for x in "${HEADERS[@]}" ; do
rm -f "${EROOT}"/usr/{${HOST}/,}${TARGET}/{usr/,}include/${x}
done
for x in bfd iberty opcodes ; do
rm -f "${EROOT}"/usr/${HOST}/${TARGET}/lib/lib${x}{{-*,}.so,.a,.la}
done
# Delete broken symlinks
local destdir="${EROOT}/usr/${HOST}/${TARGET}"
rm -f "${destdir}"/lib/ldscripts
find -L "${destdir}"/lib -type l -exec rm {} +
rmdir \
"${destdir}"/{bin,include,lib,usr} \
"${destdir}" \
"${EROOT}"/var/db/pkg/cross-${TARGET} \
"${EROOT}"/usr/{${HOST}/,}${TARGET}/bin \
"${EROOT}"/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 "${PROFILE}" ; }
get_bin_path() {
setup_env || return 1
echo "${BINPATH}"
}
get_lib_path() {
setup_env || return 1
echo "${LIBPATH}"
}
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
}
set_HOST() {
# Set HOST to CHOST if it isn't already set
: ${HOST:=${CHOST:-$(portageq envvar CHOST)}}
}
ENV_D="${EROOT}etc/env.d/binutils"
DEBUG="no"
NEED_ACTION="yes"
DOIT="switch_profile"
PROFILE="current"
HOST=""
TARGET=""
USE_NATIVE_LINKS="@USE_NATIVE_LINKS@"
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 ${x} in
-B|--get-bin-path) select_action get_bin_path ;;
-L|--get-lib-path) select_action get_lib_path ;;
-c|--get-current-profile) select_action get_current_profile ;;
-l|--list|--list-profiles) select_action list_profiles ;;
-u|--uninstall) select_action uninstall_target ;;
-C|--nocolor) ;; # nothing to do; functions.sh parsed this for us
-d|--debug) DEBUG="yes" ;;
-h|--help) usage 0 ;;
--enable-native-links) USE_NATIVE_LINKS="yes" ;;
--disable-native-links) USE_NATIVE_LINKS="no" ;;
-V|--version)
ver="@PV@"
echo "binutils-config-${ver/@'PV'@/git}"
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 ${DOIT} in
switch_profile)
# decode user's profile choice
x=${UARG:-$(TARGET=${HOST} set_current_profile)}
PROFILE=""
if [[ -z $(echo ${x} | tr -d '[:digit:]') ]] ; then
# User gave us a profile index number from '--list-profiles'
i=1
for y in "${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 "latest" or "<CTARGET>-latest".
if [[ ${x} == latest ]]; then
x=$(version_sorted_paths "${ENV_D}"/${HOST}-* | tail -1)
elif [[ ${x} == *-latest ]]; then
x=$(version_sorted_paths "${ENV_D}"/${x%-latest}-* | tail -1)
fi
# User gave us a full <CTARGET-version>, <CTARGET> or <version>
x=${x##*/}
if [[ -f ${ENV_D}/${x} ]] ; then
# Valid <CTARGET-version>
PROFILE=${x}
else
# Not a valid <CTARGET-version>
if [[ ! -f ${ENV_D}/config-${x} ]] ; then
# Maybe they just gave us a <version>. Infer <CTARGET>.
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 <CTARGET>. 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
|