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#!/usr/bin/env bash
XZ_OPT=${XZ_OPT-"-T0"}
export XZ_OPT
find_ebuild() {
local ver=$1
for ebuild in \
${ver} \
~/git/gentoo/sys-devel/gcc/gcc-${ver}.ebuild \
/usr/local/src/gentoo/repo/gentoo/sys-devel/gcc/gcc-${ver}.ebuild \
"$(portageq get_repo_path $(portageq envvar EPREFIX)/ gentoo)"/sys-devel/gcc/gcc-${ver}.ebuild \
/usr/portage/sys-devel/gcc/gcc-${ver}.ebuild \
""
do
[[ -f ${ebuild} ]] && break
done
echo ${ebuild}
}
if [[ $# -ne 1 ]] ; then
echo "Usage: $0 <gcc ebuild>"
exit 1
fi
ver=${1%/}
orig_ver=${ver}
ebuild=$(find_ebuild ${ver})
# If it doesn't exist, check for a snapshot version. We want to be able
# to input e.g. '11.3.0' and fall back to '11.2.1_p2021127' if it doesn't
# exist, as that version will become 11.3.0 anyway.
#
# (_p# is going to be something like gcc-11.2.1_p20211127, where gcc 11.2.1
# will never be released (but gcc 11.2 was) and gcc 11.3 is the next release.
# For such cases, use 11.3 as ver.)
had_pre=0
had_p=0
if [[ -z ${ebuild} ]] ; then
ver=${ver%%_pre*}
ver_major=$(echo ${ver} | cut -d'.' -f1)
ver_minor=$(($(echo ${ver} | cut -d'.' -f2) - 1))
ver="${ver_major}.${ver_minor}.1_pre*"
ebuild=$(find_ebuild ${ver})
[[ -n ${ebuild} ]] && had_pre=1
fi
if [[ -z ${ebuild} ]] ; then
ver=${orig_ver%%_p*}
ver_major=$(echo ${ver} | cut -d'.' -f1)
ver_minor=$(($(echo ${ver} | cut -d'.' -f2) - 1))
ver="${ver_major}.${ver_minor}.0_pre*"
ebuild=$(find_ebuild ${ver})
[[ -n ${ebuild} ]] && had_p=1
fi
if [[ -z ${ebuild} ]] ; then
ver=${orig_ver}
ver=${ver%%_p*}
ver_major=$(echo ${ver} | cut -d'.' -f1)
ver_minor=$(($(echo ${ver} | cut -d'.' -f2) - 1))
ver="${ver_major}.${ver_minor}.1_p*"
ebuild=$(find_ebuild ${ver})
[[ -n ${ebuild} ]] && had_p=1
fi
if [[ -z ${ebuild} ]] ; then
echo "!!! gcc ebuild '${ver}' does not exist"
exit 1
fi
digest=${ebuild/.ebuild}
rm -f ${digest/gcc\//gcc\/files\/digest-}
gver=${ebuild##*/gcc/gcc-} # trim leading path
gver=${gver%%.ebuild} # trim post .ebuild
gver=${gver%%-*} # trim any -r#'s
gver=${gver%%_pre*} # trim any _pre.*#'s
# We use the same logic as finding the ebuild above for snapshots too
gver=${gver%%_p*}
if [[ ${had_pre} -eq 1 ]] ; then
gver_major=$(echo ${gver} | cut -d'.' -f1)
gver_minor=$(($(echo ${gver} | cut -d'.' -f2) + 1))
gver="${gver_major}.${gver_minor}.0"
elif [[ ${had_p} -eq 1 ]] ; then
gver_major=$(echo ${gver} | cut -d'.' -f1)
gver_minor=$(($(echo ${gver} | cut -d'.' -f2) + 1))
gver="${gver_major}.${gver_minor}.0"
fi
# trim branch update number
sgver=$(echo ${gver} | sed -e 's:[0-9]::g')
[[ ${#sgver} -gt 2 ]] \
&& sgver=${gver%.*} \
|| sgver=${gver}
eread() {
inherit(){ :;}
while [[ $# -gt 0 ]] ; do
export $1=$(source ${ebuild} 2>/dev/null; echo ${!1})
shift
done
}
eread MUSL_VER PP_VER HTB_VER HTB_GCC_VER MAN_VER SPECS_VER SPECS_GCC_VER
[[ -n ${HTB_VER} && -z ${HTB_GCC_VER} ]] && HTB_GCC_VER=${gver}
PATCH_VER=$(awk '{print $1; exit}' ./${gver}/gentoo/README.history)
PIE_VER=$(awk '{print $1; exit}' ./${gver}/pie/README.history)
if [[ ! -d ./${gver} ]] ; then
echo "Error: ${gver} is not a valid gcc ver"
exit 1
fi
echo "Building patches for gcc version ${gver}"
echo " - PATCH: ${PATCH_VER} (taken from ${gver}/gentoo/README.history)"
echo " - MUSL: ${MUSL_VER}"
echo " - PIE: ${PIE_VER} (taken from ${gver}/pie/README.history)"
echo " - SPECS: ${SPECS_VER} (${SPECS_GCC_VER:-${gver}})"
echo " - SSP: ${PP_VER}"
echo " - BOUNDS: ${HTB_GCC_VER}-${HTB_VER}"
echo " - MAN: ${MAN_VER}"
rm -rf tmp
rm -f gcc-${gver}-*.tar.bz2 gcc-${gver}-*.tar.xz
# standard jobbies
mkdir -p tmp/patch/exclude tmp/musl tmp/piepatch tmp/specs
[[ -n ${PATCH_VER} ]] && cp ${gver}/gentoo/*.patch ${gver}/gentoo/README.history README.Gentoo.patches tmp/patch/
[[ -d ${gver}/man ]] && cp -r ${gver}/man tmp/
[[ -n ${MUSL_VER} ]] && cp -r ${gver}/musl/* README.Gentoo.patches tmp/musl/
[[ -n ${PIE_VER} ]] && cp -r ${gver}/pie/* README.Gentoo.patches tmp/piepatch/
[[ -n ${PP_VER} ]] && cp -r ${gver}/ssp tmp/
[[ -n ${SPECS_VER} ]] && cp -r ${SPECS_GCC_VER:-${gver}}/specs/* tmp/specs/
# extra cruft
[[ -n ${HTB_VER} ]] && \
cp ${gver}/misc/bounds-checking-gcc*.patch \
tmp/bounds-checking-gcc-${HTB_GCC_VER}-${HTB_VER}.patch
find tmp/ -name CVS -type d | xargs rm -rf
# standard jobbies
[[ -n ${PATCH_VER} ]] && {
tar -acf gcc-${sgver}-patches-${PATCH_VER}.tar.xz \
-C tmp patch || exit 1 ; }
[[ -n ${MUSL_VER} ]] && {
tar -acf gcc-${sgver}-musl-patches-${MUSL_VER}.tar.xz \
-C tmp musl || exit 1 ; }
[[ -n ${PIE_VER} ]] && {
tar -acf gcc-${sgver}-piepatches-v${PIE_VER}.tar.xz \
-C tmp piepatch || exit 1 ; }
[[ -n ${SPECS_VER} ]] && {
tar -acf gcc-${sgver}-specs-${SPECS_VER}.tar.xz \
-C tmp specs || exit 1 ; }
[[ -n ${PP_VER} ]] && {
mv tmp/ssp/protector.patch tmp/ssp/gcc-${gver}-ssp.patch
tar -acf gcc-${gver}-ssp-${PP_VER}.tar.xz \
-C tmp ssp || exit 1 ; }
[[ -d ${gver}/man ]] && {
tar -acf gcc-${MAN_VER}-manpages.tar.xz \
-C tmp/man . || exit 1 ; }
# extra cruft
[[ -n ${HTB_VER} ]] && {
xz tmp/bounds-checking-*.patch \
&& cp tmp/bounds-checking-*.patch.xz . || exit 1 ; }
rm -rf tmp
du -b *.xz
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