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#!/bin/bash
# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
source "${PORTAGE_BIN_PATH:-/usr/lib/portage/bin}"/isolated-functions.sh
banner=false
SKIP_STRIP=false
if has nostrip ${FEATURES} || \
has strip ${RESTRICT}
then
SKIP_STRIP=true
banner=true
has installsources ${FEATURES} || exit 0
fi
STRIP=${STRIP:-${CHOST}-strip}
type -P -- ${STRIP} > /dev/null || STRIP=strip
OBJCOPY=${OBJCOPY:-${CHOST}-objcopy}
type -P -- ${OBJCOPY} > /dev/null || OBJCOPY=objcopy
# We'll leave out -R .note for now until we can check out the relevance
# of the section when it has the ALLOC flag set on it ...
export SAFE_STRIP_FLAGS="--strip-unneeded"
export PORTAGE_STRIP_FLAGS=${PORTAGE_STRIP_FLAGS-${SAFE_STRIP_FLAGS} -R .comment}
prepstrip_sources_dir=/usr/src/debug/${CATEGORY}/${PF}
if has installsources ${FEATURES} && ! type -P debugedit >/dev/null ; then
ewarn "FEATURES=installsources is enabled but the debugedit binary could not"
ewarn "be found. This feature will not work unless debugedit is installed!"
fi
unset ${!INODE_*}
inode_var_name() {
if [[ $USERLAND = BSD ]] ; then
stat -f 'INODE_%d_%i' "$1"
else
stat -c 'INODE_%d_%i' "$1"
fi
}
save_elf_sources() {
has installsources ${FEATURES} || return 0
has installsources ${RESTRICT} && return 0
type -P debugedit >/dev/null || return 0
local x=$1
local inode=$(inode_var_name "$x")
[[ -n ${!inode} ]] && return 0
debugedit -b "${WORKDIR}" -d "${prepstrip_sources_dir}" \
-l "${T}"/debug.sources "${x}"
}
save_elf_debug() {
has splitdebug ${FEATURES} || return 0
local x=$1
local y="${D}usr/lib/debug/${x:${#D}}.debug"
# dont save debug info twice
[[ ${x} == *".debug" ]] && return 0
# this will recompute the build-id, but for now that's ok
local buildid="$( type -P debugedit >/dev/null && debugedit -i "${x}" )"
mkdir -p $(dirname "${y}")
local inode=$(inode_var_name "$x")
if [[ -n ${!inode} ]] ; then
ln "${D}usr/lib/debug/${!inode:${#D}}.debug" "$y"
else
eval $inode=\$x
${OBJCOPY} --only-keep-debug "${x}" "${y}"
${OBJCOPY} --add-gnu-debuglink="${y}" "${x}"
[[ -g ${x} ]] && chmod go-r "${y}"
[[ -u ${x} ]] && chmod go-r "${y}"
chmod a-x,o-w "${y}"
fi
if [[ -n ${buildid} ]] ; then
local buildid_dir="${D}usr/lib/debug/.build-id/${buildid:0:2}"
local buildid_file="${buildid_dir}/${buildid:2}"
mkdir -p "${buildid_dir}"
ln -s "../../${x:${#D}}.debug" "${buildid_file}.debug"
ln -s "/${x:${#D}}" "${buildid_file}"
fi
}
# The existance of the section .symtab tells us that a binary is stripped.
# We want to log already stripped binaries, as this may be a QA violation.
# They prevent us from getting the splitdebug data.
if ! has binchecks ${RESTRICT} && \
! has strip ${RESTRICT} ; then
log=$T/scanelf-already-stripped.log
qa_var="QA_PRESTRIPPED_${ARCH/-/_}"
[[ -n ${!qa_var} ]] && QA_PRESTRIPPED="${!qa_var}"
scanelf -yqRBF '#k%F' -k '!.symtab' "$@" | sed -e "s#^$D##" > "$log"
if [[ -n $QA_PRESTRIPPED && -s $log && \
${QA_STRICT_PRESTRIPPED-unset} = unset ]] ; then
shopts=$-
set -o noglob
for x in $QA_PRESTRIPPED ; do
sed -e "s#^${x#/}\$##" -i "$log"
done
set +o noglob
set -$shopts
fi
sed -e "/^\$/d" -e "s#^#/#" -i "$log"
if [[ -s $log ]] ; then
vecho -e "\n"
eqawarn "QA Notice: Pre-stripped files found:"
eqawarn "$(<"$log")"
else
rm -f "$log"
fi
fi
# Now we look for unstripped binaries.
for x in \
$(scanelf -yqRBF '#k%F' -k '.symtab' "$@") \
$(find "$@" -type f -name '*.a')
do
if ! ${banner} ; then
vecho "strip: ${STRIP} ${PORTAGE_STRIP_FLAGS}"
banner=true
fi
f=$(file "${x}") || continue
[[ -z ${f} ]] && continue
if ! ${SKIP_STRIP} ; then
# The noglob funk is to support STRIP_MASK="/*/booga" and to keep
# the for loop from expanding the globs.
# The eval echo is to support STRIP_MASK="/*/{booga,bar}" sex.
set -o noglob
strip_this=true
for m in $(eval echo ${STRIP_MASK}) ; do
[[ /${x#${D}} == ${m} ]] && strip_this=false && break
done
set +o noglob
else
strip_this=false
fi
# only split debug info for final linked objects
# or kernel modules as debuginfo for intermediatary
# files (think crt*.o from gcc/glibc) is useless and
# actually causes problems. install sources for all
# elf types though cause that stuff is good.
if [[ ${f} == *"current ar archive"* ]] ; then
vecho " ${x:${#D}}"
if ${strip_this} ; then
# hmm, can we split debug/sources for .a ?
${STRIP} -g "${x}"
fi
elif [[ ${f} == *"SB executable"* || ${f} == *"SB shared object"* ]] ; then
vecho " ${x:${#D}}"
save_elf_sources "${x}"
if ${strip_this} ; then
save_elf_debug "${x}"
${STRIP} ${PORTAGE_STRIP_FLAGS} "${x}"
fi
elif [[ ${f} == *"SB relocatable"* ]] ; then
vecho " ${x:${#D}}"
save_elf_sources "${x}"
if ${strip_this} ; then
[[ ${x} == *.ko ]] && save_elf_debug "${x}"
${STRIP} ${SAFE_STRIP_FLAGS} "${x}"
fi
fi
done
if [[ -s ${T}/debug.sources ]] && \
has installsources ${FEATURES} && \
! has installsources ${RESTRICT} && \
type -P debugedit >/dev/null
then
vecho "installsources: rsyncing source files"
[[ -d ${D}${prepstrip_sources_dir} ]] || mkdir -p "${D}${prepstrip_sources_dir}"
grep -zv '/<[^/>]*>$' "${T}"/debug.sources | \
(cd "${WORKDIR}"; LANG=C sort -z -u | \
rsync -tL0 --files-from=- "${WORKDIR}/" "${D}${prepstrip_sources_dir}/" )
# Preserve directory structure.
# Needed after running save_elf_sources.
# https://bugzilla.redhat.com/show_bug.cgi?id=444310
while read -r -d $'\0' emptydir
do
>> "$emptydir"/.keepdir
done < <(find "${D}${prepstrip_sources_dir}/" -type d -empty -print0)
fi
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