* Re: [gentoo-user] OT: GCC 5 Offloading
2015-09-15 3:11 [gentoo-user] OT: GCC 5 Offloading james
@ 2015-09-15 7:22 ` Fernando Rodriguez
2015-09-15 15:44 ` [gentoo-user] " james
0 siblings, 1 reply; 4+ messages in thread
From: Fernando Rodriguez @ 2015-09-15 7:22 UTC (permalink / raw
To: gentoo-user
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On Tuesday, September 15, 2015 3:11:37 AM james wrote:
> Fernando Rodriguez <frodriguez.developer <at> outlook.com> writes:
>
> > Do you know of any plans to enable offloading on the gentoo toolchain?
>
> NO, but I'm sure some devs are keenly aware of this feature in gcc-5.
>
>
> > I was able to build the offloading compiler using crossdev with a few hacks
> > and wrote an ebuild for Intel's simulator[2]. I will work on enabling the
> > host compiler tomorrow and may open a feature request and post patches
> > once I get it working. The changes needed to enable it on the host are
> > pretty trivial.
>
> Sorry Fernando, I just now saw this thread on an old thread. I think that
> 'sys-cluster/ceph' is where I'd like to test your spin on the gcc-5.
> Ceph has RDMA (RoCE) in the 0.94 branch (in portage). You are definately
> ahead of me on practical gcc-5 experiments with offloading and other
> new features.
>
> You did not list your second reference. Where I can I get/git your
> compiler and some brief suggestions on taking it for a test drive.
>
> I'm not much interested in the Intel simulator, atm. I like to test on
> old gear running gentoo:: borking is no big deal, if it happens.
> Other codes keen to test gcc-5 (offloading) on are Apache-mesos and
> Apache-spark and mesos-distcc.
>
> Also, per this doc [1] you can get your own gentoo overlay to put
> things up for wider experimentation, if you like.
>
> [1] https://wiki.gentoo.org/wiki/Project:Overlays/Dev_Guide
>
>
> Very cool, what you have done,
> James
The link was for the emulator ebuild[1]. I got distracted with other stuff and
didn't make the host compiler, will do it this week. I built the offloading
(accel) compiler as follows:
1. Use crossdev like when building a regular cross-compiler:
# crossdev -v -t x86_64-intelmicemul-linux-gnu #for intel MIC
or
# crossdev -v -t nvptx-none # for nvidia ptx
2. As soon as it start building the 1st stage, hit CTRL-C
3. cd to your crossdev overlay, create an eclass directory and copy the
attached eclass to it.
4. cd to the category directory for your compiler and delete the gcc symlink
and copy over the gcc directory from your portage tree.
5. delete all ebuild versions except the one you want to install and apply the
attached patch to it.
6. Emerge it with crossdev again, it should succeed. Technically you don't
need to build the whole thing so you can use crossdev options to just build
the compiler (I didn't try that).
This works for Intel MCI. For nvidia ptx you need to install nvptx-tools and
tell the compiler how to find it by adding this on line 800 of the eclass: --
with-build-time-tools=[install-nvptx-tools]/nvptx-none/bin --disable-sjlj-
exceptions --enable-newlib-io-long-long. I will patch crossdev to do it
automatically when I get time. I won't bother with an ebuild for nvptx-tools
cause I don't have a card to test and don't want to buy one.
For the host compiler, it just need one configure option so it can find the
offloading/accelerator compiler. I plan to add GCC_OFFLOAD_TARGETS to make.conf
and patch toolchain.eclass to add it to the configure command. It's not
something I'll want to put on an overlay because it affects the whole toolchain
so I'll just make it a patch and apply it to the toolchain.eclass on the
portage tree when I want to build a compiler.
I want to test with opencv stuff since I got an embedded project that will do a
lot of it. I'm hoping to use the emulator to get a good idea of how much can
be offloaded and if it's worth getting one of those.
[1] https://github.com/fernando-rodriguez/portage-overlay/tree/master/dev-util/intel-sde-external
[2] https://github.com/MentorEmbedded/nvptx-tools/
--
Fernando Rodriguez
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# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
# Maintainer: Toolchain Ninjas <toolchain@gentoo.org>
DESCRIPTION="The GNU Compiler Collection"
HOMEPAGE="http://gcc.gnu.org/"
RESTRICT="strip" # cross-compilers need controlled stripping
inherit eutils fixheadtails flag-o-matic gnuconfig libtool multilib pax-utils toolchain-funcs versionator
if [[ ${PV} == *_pre9999* ]] ; then
EGIT_REPO_URI="git://gcc.gnu.org/git/gcc.git"
# naming style:
# gcc-4.7.1_pre9999 -> gcc-4_7-branch
# Note that the micro version is required or lots of stuff will break.
# To checkout master set gcc_LIVE_BRANCH="master" in the ebuild before
# inheriting this eclass.
EGIT_BRANCH="${PN}-${PV%.?_pre9999}-branch"
EGIT_BRANCH=${EGIT_BRANCH//./_}
inherit git-2
fi
FEATURES=${FEATURES/multilib-strict/}
EXPORTED_FUNCTIONS="pkg_setup src_unpack src_compile src_test src_install pkg_postinst pkg_postrm"
case ${EAPI:-0} in
0|1) die "Need to upgrade to at least EAPI=2";;
2|3) EXPORTED_FUNCTIONS+=" src_prepare src_configure" ;;
4*|5*) EXPORTED_FUNCTIONS+=" pkg_pretend src_prepare src_configure" ;;
*) die "I don't speak EAPI ${EAPI}."
esac
EXPORT_FUNCTIONS ${EXPORTED_FUNCTIONS}
#---->> globals <<----
export CTARGET=${CTARGET:-${CHOST}}
if [[ ${CTARGET} = ${CHOST} ]] ; then
if [[ ${CATEGORY} == cross-* ]] ; then
export CTARGET=${CATEGORY#cross-}
fi
fi
: ${TARGET_ABI:=${ABI}}
: ${TARGET_MULTILIB_ABIS:=${MULTILIB_ABIS}}
: ${TARGET_DEFAULT_ABI:=${DEFAULT_ABI}}
is_crosscompile() {
[[ ${CHOST} != ${CTARGET} ]]
}
# General purpose version check. Without a second arg matches up to minor version (x.x.x)
tc_version_is_at_least() {
version_is_at_least "$1" "${2:-${GCC_RELEASE_VER}}"
}
# General purpose version range check
# Note that it matches up to but NOT including the second version
tc_version_is_between() {
tc_version_is_at_least "${1}" && ! tc_version_is_at_least "${2}"
}
GCC_PV=${TOOLCHAIN_GCC_PV:-${PV}}
GCC_PVR=${GCC_PV}
[[ ${PR} != "r0" ]] && GCC_PVR=${GCC_PVR}-${PR}
GCC_RELEASE_VER=$(get_version_component_range 1-3 ${GCC_PV})
GCC_BRANCH_VER=$(get_version_component_range 1-2 ${GCC_PV})
GCCMAJOR=$(get_version_component_range 1 ${GCC_PV})
GCCMINOR=$(get_version_component_range 2 ${GCC_PV})
GCCMICRO=$(get_version_component_range 3 ${GCC_PV})
[[ ${BRANCH_UPDATE-notset} == "notset" ]] && \
BRANCH_UPDATE=$(get_version_component_range 4 ${GCC_PV})
# According to gcc/c-cppbuiltin.c, GCC_CONFIG_VER MUST match this regex.
# ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)?
GCC_CONFIG_VER=${GCC_CONFIG_VER:-$(replace_version_separator 3 '-' ${GCC_PV})}
# Pre-release support
if [[ ${GCC_PV} == *_pre* ]] ; then
PRERELEASE=${GCC_PV/_pre/-}
elif [[ ${GCC_PV} == *_alpha* ]] ; then
SNAPSHOT=${GCC_BRANCH_VER}-${GCC_PV##*_alpha}
elif [[ ${GCC_PV} == *_beta* ]] ; then
SNAPSHOT=${GCC_BRANCH_VER}-${GCC_PV##*_beta}
elif [[ ${GCC_PV} == *_rc* ]] ; then
SNAPSHOT=${GCC_PV%_rc*}-RC-${GCC_PV##*_rc}
fi
if [[ ${SNAPSHOT} == [56789].0-* ]] ; then
# The gcc-5+ releases have dropped the .0 for some reason.
SNAPSHOT=${SNAPSHOT/.0}
fi
export GCC_FILESDIR=${GCC_FILESDIR:-${FILESDIR}}
PREFIX=${TOOLCHAIN_PREFIX:-/usr}
if tc_version_is_at_least 3.4.0 ; then
LIBPATH=${TOOLCHAIN_LIBPATH:-${PREFIX}/lib/gcc/${CTARGET}/${GCC_CONFIG_VER}}
else
LIBPATH=${TOOLCHAIN_LIBPATH:-${PREFIX}/lib/gcc-lib/${CTARGET}/${GCC_CONFIG_VER}}
fi
INCLUDEPATH=${TOOLCHAIN_INCLUDEPATH:-${LIBPATH}/include}
if is_crosscompile ; then
BINPATH=${TOOLCHAIN_BINPATH:-${PREFIX}/${CHOST}/${CTARGET}/gcc-bin/${GCC_CONFIG_VER}}
else
BINPATH=${TOOLCHAIN_BINPATH:-${PREFIX}/${CTARGET}/gcc-bin/${GCC_CONFIG_VER}}
fi
DATAPATH=${TOOLCHAIN_DATAPATH:-${PREFIX}/share/gcc-data/${CTARGET}/${GCC_CONFIG_VER}}
# Dont install in /usr/include/g++-v3/, but in gcc internal directory.
# We will handle /usr/include/g++-v3/ with gcc-config ...
STDCXX_INCDIR=${TOOLCHAIN_STDCXX_INCDIR:-${LIBPATH}/include/g++-v${GCC_BRANCH_VER/\.*/}}
#---->> LICENSE+SLOT+IUSE logic <<----
if tc_version_is_at_least 4.6 ; then
LICENSE="GPL-3+ LGPL-3+ || ( GPL-3+ libgcc libstdc++ gcc-runtime-library-exception-3.1 ) FDL-1.3+"
elif tc_version_is_at_least 4.4 ; then
LICENSE="GPL-3+ LGPL-3+ || ( GPL-3+ libgcc libstdc++ gcc-runtime-library-exception-3.1 ) FDL-1.2+"
elif tc_version_is_at_least 4.3 ; then
LICENSE="GPL-3+ LGPL-3+ || ( GPL-3+ libgcc libstdc++ ) FDL-1.2+"
elif tc_version_is_at_least 4.2 ; then
LICENSE="GPL-3+ LGPL-2.1+ || ( GPL-3+ libgcc libstdc++ ) FDL-1.2+"
elif tc_version_is_at_least 3.3 ; then
LICENSE="GPL-2+ LGPL-2.1+ FDL-1.2+"
else
LICENSE="GPL-2+ LGPL-2.1+ FDL-1.1+"
fi
IUSE="multislot regression-test vanilla"
IUSE_DEF=( nls nptl )
if [[ ${PN} != "kgcc64" && ${PN} != gcc-* ]] ; then
IUSE+=" altivec debug"
IUSE_DEF+=( cxx fortran )
[[ -n ${PIE_VER} ]] && IUSE+=" nopie"
[[ -n ${HTB_VER} ]] && IUSE+=" boundschecking"
[[ -n ${D_VER} ]] && IUSE+=" d"
[[ -n ${SPECS_VER} ]] && IUSE+=" nossp"
tc_version_is_at_least 3 && IUSE+=" doc gcj awt hardened multilib objc"
tc_version_is_at_least 4.0 && IUSE+=" objc-gc"
tc_version_is_between 4.0 4.9 && IUSE+=" mudflap"
tc_version_is_at_least 4.1 && IUSE+=" libssp objc++"
tc_version_is_at_least 4.2 && IUSE_DEF+=( openmp )
tc_version_is_at_least 4.3 && IUSE+=" fixed-point"
tc_version_is_at_least 4.7 && IUSE+=" go"
# Note: while <=gcc-4.7 also supported graphite, it required forked ppl
# versions which we dropped. Since graphite was also experimental in
# the older versions, we don't want to bother supporting it. #448024
tc_version_is_at_least 4.8 && IUSE+=" graphite" IUSE_DEF+=( sanitize )
tc_version_is_at_least 4.9 && IUSE+=" cilk"
tc_version_is_at_least 6.0 && IUSE+=" pie +ssp"
fi
IUSE+=" ${IUSE_DEF[*]/#/+}"
# Support upgrade paths here or people get pissed
if ! tc_version_is_at_least 4.7 || is_crosscompile || use multislot || [[ ${GCC_PV} == *_alpha* ]] ; then
SLOT="${GCC_CONFIG_VER}"
else
SLOT="${GCC_BRANCH_VER}"
fi
#---->> DEPEND <<----
RDEPEND="sys-libs/zlib
nls? ( virtual/libintl )"
tc_version_is_at_least 3 && RDEPEND+=" virtual/libiconv"
if tc_version_is_at_least 4 ; then
GMP_MPFR_DEPS=">=dev-libs/gmp-4.3.2:0 >=dev-libs/mpfr-2.4.2:0"
if tc_version_is_at_least 4.3 ; then
RDEPEND+=" ${GMP_MPFR_DEPS}"
elif in_iuse fortran ; then
RDEPEND+=" fortran? ( ${GMP_MPFR_DEPS} )"
fi
fi
tc_version_is_at_least 4.5 && RDEPEND+=" >=dev-libs/mpc-0.8.1:0"
if in_iuse graphite ; then
if tc_version_is_at_least 5.0 ; then
RDEPEND+=" graphite? ( >=dev-libs/isl-0.14 )"
elif tc_version_is_at_least 4.8 ; then
RDEPEND+="
graphite? (
>=dev-libs/cloog-0.18.0
>=dev-libs/isl-0.11.1
)"
fi
fi
DEPEND="${RDEPEND}
>=sys-devel/bison-1.875
>=sys-devel/flex-2.5.4
nls? ( sys-devel/gettext )
regression-test? (
>=dev-util/dejagnu-1.4.4
>=sys-devel/autogen-5.5.4
)"
if in_iuse gcj ; then
GCJ_DEPS=">=media-libs/libart_lgpl-2.1"
GCJ_GTK_DEPS="
x11-libs/libXt
x11-libs/libX11
x11-libs/libXtst
x11-proto/xproto
x11-proto/xextproto
=x11-libs/gtk+-2*
virtual/pkgconfig
"
tc_version_is_at_least 3.4 && GCJ_GTK_DEPS+=" x11-libs/pango"
tc_version_is_at_least 4.2 && GCJ_DEPS+=" app-arch/zip app-arch/unzip"
DEPEND+=" gcj? ( awt? ( ${GCJ_GTK_DEPS} ) ${GCJ_DEPS} )"
fi
PDEPEND=">=sys-devel/gcc-config-1.7"
#---->> S + SRC_URI essentials <<----
# Set the source directory depending on whether we're using
# a prerelease, snapshot, or release tarball.
S=$(
if [[ -n ${PRERELEASE} ]] ; then
echo ${WORKDIR}/gcc-${PRERELEASE}
elif [[ -n ${SNAPSHOT} ]] ; then
echo ${WORKDIR}/gcc-${SNAPSHOT}
else
echo ${WORKDIR}/gcc-${GCC_RELEASE_VER}
fi
)
gentoo_urls() {
local devspace="HTTP~vapier/dist/URI HTTP~rhill/dist/URI
HTTP~zorry/patches/gcc/URI HTTP~blueness/dist/URI"
devspace=${devspace//HTTP/http:\/\/dev.gentoo.org\/}
echo mirror://gentoo/$1 ${devspace//URI/$1}
}
# This function handles the basics of setting the SRC_URI for a gcc ebuild.
# To use, set SRC_URI with:
#
# SRC_URI="$(get_gcc_src_uri)"
#
# Other than the variables normally set by portage, this function's behavior
# can be altered by setting the following:
#
# SNAPSHOT
# If set, this variable signals that we should be using a snapshot of
# gcc. It is expected to be in the format "YYYY-MM-DD". Note that if
# the ebuild has a _pre suffix, this variable is ignored and the
# prerelease tarball is used instead.
#
# BRANCH_UPDATE
# If set, this variable signals that we should be using the main
# release tarball (determined by ebuild version) and applying a
# CVS branch update patch against it. The location of this branch
# update patch is assumed to be in ${GENTOO_TOOLCHAIN_BASE_URI}.
# Just like with SNAPSHOT, this variable is ignored if the ebuild
# has a _pre suffix.
#
# PATCH_VER
# PATCH_GCC_VER
# This should be set to the version of the gentoo patch tarball.
# The resulting filename of this tarball will be:
# gcc-${PATCH_GCC_VER:-${GCC_RELEASE_VER}}-patches-${PATCH_VER}.tar.bz2
#
# PIE_VER
# PIE_GCC_VER
# These variables control patching in various updates for the logic
# controlling Position Independant Executables. PIE_VER is expected
# to be the version of this patch, and PIE_GCC_VER the gcc version of
# the patch:
# An example:
# PIE_VER="8.7.6.5"
# PIE_GCC_VER="3.4.0"
# The resulting filename of this tarball will be:
# gcc-${PIE_GCC_VER:-${GCC_RELEASE_VER}}-piepatches-v${PIE_VER}.tar.bz2
#
# SPECS_VER
# SPECS_GCC_VER
# This is for the minispecs files included in the hardened gcc-4.x
# The specs files for hardenedno*, vanilla and for building the "specs" file.
# SPECS_VER is expected to be the version of this patch, SPECS_GCC_VER
# the gcc version of the patch.
# An example:
# SPECS_VER="8.7.6.5"
# SPECS_GCC_VER="3.4.0"
# The resulting filename of this tarball will be:
# gcc-${SPECS_GCC_VER:-${GCC_RELEASE_VER}}-specs-${SPECS_VER}.tar.bz2
#
# HTB_VER
# HTB_GCC_VER
# These variables control whether or not an ebuild supports Herman
# ten Brugge's bounds-checking patches. If you want to use a patch
# for an older gcc version with a new gcc, make sure you set
# HTB_GCC_VER to that version of gcc.
get_gcc_src_uri() {
export PATCH_GCC_VER=${PATCH_GCC_VER:-${GCC_RELEASE_VER}}
export UCLIBC_GCC_VER=${UCLIBC_GCC_VER:-${PATCH_GCC_VER}}
export PIE_GCC_VER=${PIE_GCC_VER:-${GCC_RELEASE_VER}}
export HTB_GCC_VER=${HTB_GCC_VER:-${GCC_RELEASE_VER}}
export SPECS_GCC_VER=${SPECS_GCC_VER:-${GCC_RELEASE_VER}}
# Set where to download gcc itself depending on whether we're using a
# prerelease, snapshot, or release tarball.
if [[ ${PV} == *9999* ]] ; then
# Nothing to do w/git snapshots.
:
elif [[ -n ${PRERELEASE} ]] ; then
GCC_SRC_URI="ftp://gcc.gnu.org/pub/gcc/prerelease-${PRERELEASE}/gcc-${PRERELEASE}.tar.bz2"
elif [[ -n ${SNAPSHOT} ]] ; then
GCC_SRC_URI="ftp://gcc.gnu.org/pub/gcc/snapshots/${SNAPSHOT}/gcc-${SNAPSHOT}.tar.bz2"
else
GCC_SRC_URI="mirror://gnu/gcc/gcc-${GCC_PV}/gcc-${GCC_RELEASE_VER}.tar.bz2"
# we want all branch updates to be against the main release
[[ -n ${BRANCH_UPDATE} ]] && \
GCC_SRC_URI+=" $(gentoo_urls gcc-${GCC_RELEASE_VER}-branch-update-${BRANCH_UPDATE}.patch.bz2)"
fi
[[ -n ${UCLIBC_VER} ]] && \
GCC_SRC_URI+=" $(gentoo_urls gcc-${UCLIBC_GCC_VER}-uclibc-patches-${UCLIBC_VER}.tar.bz2)"
[[ -n ${PATCH_VER} ]] && \
GCC_SRC_URI+=" $(gentoo_urls gcc-${PATCH_GCC_VER}-patches-${PATCH_VER}.tar.bz2)"
# strawberry pie, Cappuccino and a Gauloises (it's a good thing)
[[ -n ${PIE_VER} ]] && \
PIE_CORE=${PIE_CORE:-gcc-${PIE_GCC_VER}-piepatches-v${PIE_VER}.tar.bz2} && \
GCC_SRC_URI+=" $(gentoo_urls ${PIE_CORE})"
# gcc minispec for the hardened gcc 4 compiler
[[ -n ${SPECS_VER} ]] && \
GCC_SRC_URI+=" $(gentoo_urls gcc-${SPECS_GCC_VER}-specs-${SPECS_VER}.tar.bz2)"
# gcc bounds checking patch
if [[ -n ${HTB_VER} ]] ; then
local HTBFILE="bounds-checking-gcc-${HTB_GCC_VER}-${HTB_VER}.patch.bz2"
GCC_SRC_URI+="
boundschecking? (
mirror://sourceforge/boundschecking/${HTBFILE}
$(gentoo_urls ${HTBFILE})
)"
fi
[[ -n ${D_VER} ]] && \
GCC_SRC_URI+=" d? ( mirror://sourceforge/dgcc/gdc-${D_VER}-src.tar.bz2 )"
if in_iuse gcj ; then
if tc_version_is_at_least 4.5 ; then
GCC_SRC_URI+=" gcj? ( ftp://sourceware.org/pub/java/ecj-4.5.jar )"
elif tc_version_is_at_least 4.3 ; then
GCC_SRC_URI+=" gcj? ( ftp://sourceware.org/pub/java/ecj-4.3.jar )"
fi
fi
echo "${GCC_SRC_URI}"
}
SRC_URI=$(get_gcc_src_uri)
#---->> pkg_pretend <<----
toolchain-offload_pkg_pretend() {
if [[ -n ${PRERELEASE}${SNAPSHOT} || ${PV} == *9999* ]] &&
[[ -z ${I_PROMISE_TO_SUPPLY_PATCHES_WITH_BUGS} ]] ; then
die "Please \`export I_PROMISE_TO_SUPPLY_PATCHES_WITH_BUGS=1\` or define it" \
"in your make.conf if you want to use this version."
fi
[[ -z ${UCLIBC_VER} ]] && [[ ${CTARGET} == *-uclibc* ]] && \
die "Sorry, this version does not support uClibc"
if ! use_if_iuse cxx ; then
use_if_iuse go && ewarn 'Go requires a C++ compiler, disabled due to USE="-cxx"'
use_if_iuse objc++ && ewarn 'Obj-C++ requires a C++ compiler, disabled due to USE="-cxx"'
use_if_iuse gcj && ewarn 'GCJ requires a C++ compiler, disabled due to USE="-cxx"'
fi
want_minispecs
}
#---->> pkg_setup <<----
toolchain-offload_pkg_setup() {
case ${EAPI} in
2|3) toolchain-offload_pkg_pretend ;;
esac
# we dont want to use the installed compiler's specs to build gcc
unset GCC_SPECS
unset LANGUAGES #265283
}
#---->> src_unpack <<----
toolchain-offload_src_unpack() {
if [[ ${PV} == *9999* ]]; then
git-2_src_unpack
else
gcc_quick_unpack
fi
}
gcc_quick_unpack() {
pushd "${WORKDIR}" > /dev/null
export PATCH_GCC_VER=${PATCH_GCC_VER:-${GCC_RELEASE_VER}}
export UCLIBC_GCC_VER=${UCLIBC_GCC_VER:-${PATCH_GCC_VER}}
export PIE_GCC_VER=${PIE_GCC_VER:-${GCC_RELEASE_VER}}
export HTB_GCC_VER=${HTB_GCC_VER:-${GCC_RELEASE_VER}}
export SPECS_GCC_VER=${SPECS_GCC_VER:-${GCC_RELEASE_VER}}
if [[ -n ${GCC_A_FAKEIT} ]] ; then
unpack ${GCC_A_FAKEIT}
elif [[ -n ${PRERELEASE} ]] ; then
unpack gcc-${PRERELEASE}.tar.bz2
elif [[ -n ${SNAPSHOT} ]] ; then
unpack gcc-${SNAPSHOT}.tar.bz2
elif [[ ${PV} != *9999* ]] ; then
unpack gcc-${GCC_RELEASE_VER}.tar.bz2
# We want branch updates to be against a release tarball
if [[ -n ${BRANCH_UPDATE} ]] ; then
pushd "${S}" > /dev/null
epatch "${DISTDIR}"/gcc-${GCC_RELEASE_VER}-branch-update-${BRANCH_UPDATE}.patch.bz2
popd > /dev/null
fi
fi
if [[ -n ${D_VER} ]] && use d ; then
pushd "${S}"/gcc > /dev/null
unpack gdc-${D_VER}-src.tar.bz2
cd ..
ebegin "Adding support for the D language"
./gcc/d/setup-gcc.sh >& "${T}"/dgcc.log
if ! eend $? ; then
eerror "The D GCC package failed to apply"
eerror "Please include this log file when posting a bug report:"
eerror " ${T}/dgcc.log"
die "failed to include the D language"
fi
popd > /dev/null
fi
[[ -n ${PATCH_VER} ]] && \
unpack gcc-${PATCH_GCC_VER}-patches-${PATCH_VER}.tar.bz2
[[ -n ${UCLIBC_VER} ]] && \
unpack gcc-${UCLIBC_GCC_VER}-uclibc-patches-${UCLIBC_VER}.tar.bz2
if want_pie ; then
if [[ -n ${PIE_CORE} ]] ; then
unpack ${PIE_CORE}
else
unpack gcc-${PIE_GCC_VER}-piepatches-v${PIE_VER}.tar.bz2
fi
[[ -n ${SPECS_VER} ]] && \
unpack gcc-${SPECS_GCC_VER}-specs-${SPECS_VER}.tar.bz2
fi
use_if_iuse boundschecking && unpack "bounds-checking-gcc-${HTB_GCC_VER}-${HTB_VER}.patch.bz2"
popd > /dev/null
}
#---->> src_prepare <<----
toolchain-offload_src_prepare() {
export BRANDING_GCC_PKGVERSION="Gentoo ${GCC_PVR}"
cd "${S}"
if ! use vanilla ; then
if [[ -n ${PATCH_VER} ]] ; then
guess_patch_type_in_dir "${WORKDIR}"/patch
EPATCH_MULTI_MSG="Applying Gentoo patches ..." \
epatch "${WORKDIR}"/patch
BRANDING_GCC_PKGVERSION="${BRANDING_GCC_PKGVERSION} p${PATCH_VER}"
fi
if [[ -n ${UCLIBC_VER} ]] ; then
guess_patch_type_in_dir "${WORKDIR}"/uclibc
EPATCH_MULTI_MSG="Applying uClibc patches ..." \
epatch "${WORKDIR}"/uclibc
fi
fi
do_gcc_HTB_patches
do_gcc_PIE_patches
epatch_user
if ( tc_version_is_at_least 4.8.2 || use hardened ) && ! use vanilla ; then
make_gcc_hard
fi
# install the libstdc++ python into the right location
# http://gcc.gnu.org/PR51368
if tc_version_is_between 4.5 4.7 ; then
sed -i \
'/^pythondir =/s:=.*:= $(datadir)/python:' \
"${S}"/libstdc++-v3/python/Makefile.in || die
fi
# make sure the pkg config files install into multilib dirs.
# since we configure with just one --libdir, we can't use that
# (as gcc itself takes care of building multilibs). #435728
find "${S}" -name Makefile.in \
-exec sed -i '/^pkgconfigdir/s:=.*:=$(toolexeclibdir)/pkgconfig:' {} +
# No idea when this first started being fixed, but let's go with 4.3.x for now
if ! tc_version_is_at_least 4.3 ; then
fix_files=""
for x in contrib/test_summary libstdc++-v3/scripts/check_survey.in ; do
[[ -e ${x} ]] && fix_files="${fix_files} ${x}"
done
ht_fix_file ${fix_files} */configure *.sh */Makefile.in
fi
setup_multilib_osdirnames
gcc_version_patch
if tc_version_is_at_least 4.1 ; then
if [[ -n ${SNAPSHOT} || -n ${PRERELEASE} ]] ; then
# BASE-VER must be a three-digit version number
# followed by an optional -pre string
# eg. 4.5.1, 4.6.2-pre20120213, 4.7.0-pre9999
# If BASE-VER differs from ${PV/_/-} then libraries get installed in
# the wrong directory.
echo ${PV/_/-} > "${S}"/gcc/BASE-VER
fi
fi
# >= gcc-4.3 doesn't bundle ecj.jar, so copy it
if tc_version_is_at_least 4.3 && use gcj ; then
if tc_version_is_at_least 4.5 ; then
einfo "Copying ecj-4.5.jar"
cp -pPR "${DISTDIR}/ecj-4.5.jar" "${S}/ecj.jar" || die
else
einfo "Copying ecj-4.3.jar"
cp -pPR "${DISTDIR}/ecj-4.3.jar" "${S}/ecj.jar" || die
fi
fi
# disable --as-needed from being compiled into gcc specs
# natively when using a gcc version < 3.4.4
# http://gcc.gnu.org/PR14992
if ! tc_version_is_at_least 3.4.4 ; then
sed -i -e s/HAVE_LD_AS_NEEDED/USE_LD_AS_NEEDED/g "${S}"/gcc/config.in
fi
# In gcc 3.3.x and 3.4.x, rename the java bins to gcc-specific names
# in line with gcc-4.
if tc_version_is_between 3.3 4.0 ; then
do_gcc_rename_java_bins
fi
# Prevent libffi from being installed
if tc_version_is_between 3.0 4.8 ; then
sed -i -e 's/\(install.*:\) install-.*recursive/\1/' "${S}"/libffi/Makefile.in || die
sed -i -e 's/\(install-data-am:\).*/\1/' "${S}"/libffi/include/Makefile.in || die
fi
# Fixup libtool to correctly generate .la files with portage
elibtoolize --portage --shallow --no-uclibc
gnuconfig_update
# update configure files
local f
einfo "Fixing misc issues in configure files"
for f in $(grep -l 'autoconf version 2.13' $(find "${S}" -name configure)) ; do
ebegin " Updating ${f/${S}\/} [LANG]"
patch "${f}" "${GCC_FILESDIR}"/gcc-configure-LANG.patch >& "${T}"/configure-patch.log \
|| eerror "Please file a bug about this"
eend $?
done
sed -i 's|A-Za-z0-9|[:alnum:]|g' "${S}"/gcc/*.awk #215828
# Prevent new texinfo from breaking old versions (see #198182, #464008)
tc_version_is_at_least 4.1 && epatch "${GCC_FILESDIR}"/gcc-configure-texinfo.patch
if [[ -x contrib/gcc_update ]] ; then
einfo "Touching generated files"
./contrib/gcc_update --touch | \
while read f ; do
einfo " ${f%%...}"
done
fi
}
guess_patch_type_in_dir() {
[[ -n $(ls "$1"/*.bz2 2>/dev/null) ]] \
&& EPATCH_SUFFIX="patch.bz2" \
|| EPATCH_SUFFIX="patch"
}
do_gcc_HTB_patches() {
use_if_iuse boundschecking || return 0
# modify the bounds checking patch with a regression patch
epatch "${WORKDIR}/bounds-checking-gcc-${HTB_GCC_VER}-${HTB_VER}.patch"
BRANDING_GCC_PKGVERSION="${BRANDING_GCC_PKGVERSION}, HTB-${HTB_GCC_VER}-${HTB_VER}"
}
do_gcc_PIE_patches() {
want_pie || return 0
use vanilla && return 0
if tc_version_is_at_least 4.3.2 ; then
guess_patch_type_in_dir "${WORKDIR}"/piepatch/
EPATCH_MULTI_MSG="Applying pie patches ..." \
epatch "${WORKDIR}"/piepatch/
else
guess_patch_type_in_dir "${WORKDIR}"/piepatch/upstream
# corrects startfile/endfile selection and shared/static/pie flag usage
EPATCH_MULTI_MSG="Applying upstream pie patches ..." \
epatch "${WORKDIR}"/piepatch/upstream
# adds non-default pie support (rs6000)
EPATCH_MULTI_MSG="Applying non-default pie patches ..." \
epatch "${WORKDIR}"/piepatch/nondef
# adds default pie support (rs6000 too) if DEFAULT_PIE[_SSP] is defined
EPATCH_MULTI_MSG="Applying default pie patches ..." \
epatch "${WORKDIR}"/piepatch/def
fi
BRANDING_GCC_PKGVERSION="${BRANDING_GCC_PKGVERSION}, pie-${PIE_VER}"
}
# configure to build with the hardened GCC specs as the default
make_gcc_hard() {
# we want to be able to control the pie patch logic via something other
# than ALL_CFLAGS...
sed -e '/^ALL_CFLAGS/iHARD_CFLAGS = ' \
-e 's|^ALL_CFLAGS = |ALL_CFLAGS = $(HARD_CFLAGS) |' \
-i "${S}"/gcc/Makefile.in
# Need to add HARD_CFLAGS to ALL_CXXFLAGS on >= 4.7
if tc_version_is_at_least 4.7 ; then
sed -e '/^ALL_CXXFLAGS/iHARD_CFLAGS = ' \
-e 's|^ALL_CXXFLAGS = |ALL_CXXFLAGS = $(HARD_CFLAGS) |' \
-i "${S}"/gcc/Makefile.in
fi
# defaults to enable for all toolchains
local gcc_hard_flags=""
if use hardened ; then
if hardened_gcc_works ; then
einfo "Updating gcc to use automatic PIE + SSP building ..."
gcc_hard_flags+=" -DEFAULT_PIE_SSP"
elif hardened_gcc_works pie ; then
einfo "Updating gcc to use automatic PIE building ..."
ewarn "SSP has not been enabled by default"
gcc_hard_flags+=" -DEFAULT_PIE"
elif hardened_gcc_works ssp ; then
einfo "Updating gcc to use automatic SSP building ..."
ewarn "PIE has not been enabled by default"
gcc_hard_flags+=" -DEFAULT_SSP"
else
# do nothing if hardened is't supported, but don't die either
ewarn "hardened is not supported for this arch in this gcc version"
return 0
fi
# rebrand to make bug reports easier
BRANDING_GCC_PKGVERSION=${BRANDING_GCC_PKGVERSION/Gentoo/Gentoo Hardened}
else
if hardened_gcc_works ssp ; then
einfo "Updating gcc to use automatic SSP building ..."
gcc_hard_flags+=" -DEFAULT_SSP"
fi
fi
sed -i \
-e "/^HARD_CFLAGS = /s|=|= ${gcc_hard_flags} |" \
"${S}"/gcc/Makefile.in || die
}
# This is a historical wart. The original Gentoo/amd64 port used:
# lib32 - 32bit binaries (x86)
# lib64 - 64bit binaries (x86_64)
# lib - "native" binaries (a symlink to lib64)
# Most other distros use the logic (including mainline gcc):
# lib - 32bit binaries (x86)
# lib64 - 64bit binaries (x86_64)
# Over time, Gentoo is migrating to the latter form.
#
# Unfortunately, due to distros picking the lib32 behavior, newer gcc
# versions will dynamically detect whether to use lib or lib32 for its
# 32bit multilib. So, to keep the automagic from getting things wrong
# while people are transitioning from the old style to the new style,
# we always set the MULTILIB_OSDIRNAMES var for relevant targets.
setup_multilib_osdirnames() {
is_multilib || return 0
local config
local libdirs="../lib64 ../lib32"
# this only makes sense for some Linux targets
case ${CTARGET} in
x86_64*-linux*) config="i386" ;;
powerpc64*-linux*) config="rs6000" ;;
sparc64*-linux*) config="sparc" ;;
s390x*-linux*) config="s390" ;;
*) return 0 ;;
esac
config+="/t-linux64"
local sed_args=()
if tc_version_is_at_least 4.6 ; then
sed_args+=( -e 's:$[(]call if_multiarch[^)]*[)]::g' )
fi
if [[ ${SYMLINK_LIB} == "yes" ]] ; then
einfo "updating multilib directories to be: ${libdirs}"
if tc_version_is_at_least 4.6.4 || tc_version_is_at_least 4.7 ; then
sed_args+=( -e '/^MULTILIB_OSDIRNAMES.*lib32/s:[$][(]if.*):../lib32:' )
else
sed_args+=( -e "/^MULTILIB_OSDIRNAMES/s:=.*:= ${libdirs}:" )
fi
else
einfo "using upstream multilib; disabling lib32 autodetection"
sed_args+=( -r -e 's:[$][(]if.*,(.*)[)]:\1:' )
fi
sed -i "${sed_args[@]}" "${S}"/gcc/config/${config} || die
}
gcc_version_patch() {
# gcc-4.3+ has configure flags (whoo!)
tc_version_is_at_least 4.3 && return 0
local version_string=${GCC_CONFIG_VER}
[[ -n ${BRANCH_UPDATE} ]] && version_string+=" ${BRANCH_UPDATE}"
einfo "patching gcc version: ${version_string} (${BRANDING_GCC_PKGVERSION})"
local gcc_sed=( -e 's:gcc\.gnu\.org/bugs\.html:bugs\.gentoo\.org/:' )
if grep -qs VERSUFFIX "${S}"/gcc/version.c ; then
gcc_sed+=( -e "/VERSUFFIX \"\"/s:\"\":\" (${BRANDING_GCC_PKGVERSION})\":" )
else
version_string="${version_string} (${BRANDING_GCC_PKGVERSION})"
gcc_sed+=( -e "/const char version_string\[\] = /s:= \".*\":= \"${version_string}\":" )
fi
sed -i "${gcc_sed[@]}" "${S}"/gcc/version.c || die
}
do_gcc_rename_java_bins() {
# bug #139918 - conflict between gcc and java-config-2 for ownership of
# /usr/bin/rmi{c,registry}. Done with mv & sed rather than a patch
# because patches would be large (thanks to the rename of man files),
# and it's clear from the sed invocations that all that changes is the
# rmi{c,registry} names to grmi{c,registry} names.
# Kevin F. Quinn 2006-07-12
einfo "Renaming jdk executables rmic and rmiregistry to grmic and grmiregistry."
# 1) Move the man files if present (missing prior to gcc-3.4)
for manfile in rmic rmiregistry ; do
[[ -f ${S}/gcc/doc/${manfile}.1 ]] || continue
mv "${S}"/gcc/doc/${manfile}.1 "${S}"/gcc/doc/g${manfile}.1
done
# 2) Fixup references in the docs if present (mission prior to gcc-3.4)
for jfile in gcc/doc/gcj.info gcc/doc/grmic.1 gcc/doc/grmiregistry.1 gcc/java/gcj.texi ; do
[[ -f ${S}/${jfile} ]] || continue
sed -i -e 's:rmiregistry:grmiregistry:g' "${S}"/${jfile} ||
die "Failed to fixup file ${jfile} for rename to grmiregistry"
sed -i -e 's:rmic:grmic:g' "${S}"/${jfile} ||
die "Failed to fixup file ${jfile} for rename to grmic"
done
# 3) Fixup Makefiles to build the changed executable names
# These are present in all 3.x versions, and are the important bit
# to get gcc to build with the new names.
for jfile in libjava/Makefile.am libjava/Makefile.in gcc/java/Make-lang.in ; do
sed -i -e 's:rmiregistry:grmiregistry:g' "${S}"/${jfile} ||
die "Failed to fixup file ${jfile} for rename to grmiregistry"
# Careful with rmic on these files; it's also the name of a directory
# which should be left unchanged. Replace occurrences of 'rmic$',
# 'rmic_' and 'rmic '.
sed -i -e 's:rmic\([$_ ]\):grmic\1:g' "${S}"/${jfile} ||
die "Failed to fixup file ${jfile} for rename to grmic"
done
}
#---->> src_configure <<----
toolchain-offload_src_configure() {
downgrade_arch_flags
gcc_do_filter_flags
einfo "CFLAGS=\"${CFLAGS}\""
einfo "CXXFLAGS=\"${CXXFLAGS}\""
einfo "LDFLAGS=\"${LDFLAGS}\""
# Force internal zip based jar script to avoid random
# issues with 3rd party jar implementations. #384291
export JAR=no
# For hardened gcc 4.3 piepatchset to build the hardened specs
# file (build.specs) to use when building gcc.
if ! tc_version_is_at_least 4.4 && want_minispecs ; then
setup_minispecs_gcc_build_specs
fi
local confgcc=( --host=${CHOST} --enable-as-accelerator-for=${CHOST} )
if is_crosscompile || tc-is-cross-compiler ; then
# Straight from the GCC install doc:
# "GCC has code to correctly determine the correct value for target
# for nearly all native systems. Therefore, we highly recommend you
# not provide a configure target when configuring a native compiler."
confgcc+=( --target=${CTARGET} )
fi
[[ -n ${CBUILD} ]] && confgcc+=( --build=${CBUILD} )
confgcc+=(
--prefix="${PREFIX}"
--bindir="${BINPATH}"
--includedir="${INCLUDEPATH}"
--datadir="${DATAPATH}"
--mandir="${DATAPATH}/man"
--infodir="${DATAPATH}/info"
--with-gxx-include-dir="${STDCXX_INCDIR}"
)
# Stick the python scripts in their own slotted directory (bug #279252)
#
# --with-python-dir=DIR
# Specifies where to install the Python modules used for aot-compile. DIR
# should not include the prefix used in installation. For example, if the
# Python modules are to be installed in /usr/lib/python2.5/site-packages,
# then --with-python-dir=/lib/python2.5/site-packages should be passed.
#
# This should translate into "/share/gcc-data/${CTARGET}/${GCC_CONFIG_VER}/python"
if tc_version_is_at_least 4.4 ; then
confgcc+=( --with-python-dir=${DATAPATH/$PREFIX/}/python )
fi
### language options
local GCC_LANG="c"
is_cxx && GCC_LANG+=",c++"
is_d && GCC_LANG+=",d"
is_gcj && GCC_LANG+=",java"
is_go && GCC_LANG+=",go"
if is_objc || is_objcxx ; then
GCC_LANG+=",objc"
if tc_version_is_at_least 4 ; then
use objc-gc && confgcc+=( --enable-objc-gc )
fi
is_objcxx && GCC_LANG+=",obj-c++"
fi
# fortran support just got sillier! the lang value can be f77 for
# fortran77, f95 for fortran95, or just plain old fortran for the
# currently supported standard depending on gcc version.
is_fortran && GCC_LANG+=",fortran"
is_f77 && GCC_LANG+=",f77"
is_f95 && GCC_LANG+=",f95"
# We do NOT want 'ADA support' in here!
# is_ada && GCC_LANG+=",ada"
confgcc+=( --enable-languages=${GCC_LANG} )
### general options
confgcc+=(
--enable-obsolete
--enable-secureplt
--disable-werror
--with-system-zlib
)
if use nls ; then
confgcc+=( --enable-nls --without-included-gettext )
else
confgcc+=( --disable-nls )
fi
tc_version_is_at_least 3.4 || confgcc+=( --disable-libunwind-exceptions )
# Use the default ("release") checking because upstream usually neglects
# to test "disabled" so it has a history of breaking. #317217
if tc_version_is_at_least 3.4 ; then
# The "release" keyword is new to 4.0. #551636
local off=$(tc_version_is_at_least 4.0 && echo release || echo no)
confgcc+=( --enable-checking="${GCC_CHECKS_LIST:-$(usex debug yes ${off})}" )
fi
# Branding
tc_version_is_at_least 4.3 && confgcc+=(
--with-bugurl=https://bugs.gentoo.org/
--with-pkgversion="${BRANDING_GCC_PKGVERSION}"
)
# If we want hardened support with the newer piepatchset for >=gcc 4.4
if tc_version_is_at_least 4.4 && want_minispecs ; then
confgcc+=( $(use_enable hardened esp) )
fi
# allow gcc to search for clock funcs in the main C lib.
# if it can't find them, then tough cookies -- we aren't
# going to link in -lrt to all C++ apps. #411681
if tc_version_is_at_least 4.4 && is_cxx ; then
confgcc+=( --enable-libstdcxx-time )
fi
# # Turn on the -Wl,--build-id flag by default for ELF targets. #525942
# # This helps with locating debug files.
# case ${CTARGET} in
# *-linux-*|*-elf|*-eabi)
# tc_version_is_at_least 4.5 && confgcc+=(
# --enable-linker-build-id
# )
# ;;
# esac
# newer gcc versions like to bootstrap themselves with C++,
# so we need to manually disable it ourselves
if tc_version_is_between 4.7 4.8 && ! is_cxx ; then
confgcc+=( --disable-build-with-cxx --disable-build-poststage1-with-cxx )
fi
### Cross-compiler options
if is_crosscompile ; then
# Enable build warnings by default with cross-compilers when system
# paths are included (e.g. via -I flags).
confgcc+=( --enable-poison-system-directories )
# When building a stage1 cross-compiler (just C compiler), we have to
# disable a bunch of features or gcc goes boom
local needed_libc=""
case ${CTARGET} in
*-linux) needed_libc=no-fucking-clue;;
*-dietlibc) needed_libc=dietlibc;;
*-elf|*-eabi) needed_libc=newlib;;
*-freebsd*) needed_libc=freebsd-lib;;
*-gnu*) needed_libc=glibc;;
*-klibc) needed_libc=klibc;;
*-musl*) needed_libc=musl;;
*-uclibc*)
if ! echo '#include <features.h>' | \
$(tc-getCPP ${CTARGET}) -E -dD - 2>/dev/null | \
grep -q __HAVE_SHARED__
then #291870
confgcc+=( --disable-shared )
fi
needed_libc=uclibc
;;
*-cygwin) needed_libc=cygwin;;
x86_64-*-mingw*|\
*-w64-mingw*) needed_libc=mingw64-runtime;;
mingw*|*-mingw*) needed_libc=mingw-runtime;;
avr) confgcc+=( --enable-shared --disable-threads );;
esac
if [[ -n ${needed_libc} ]] ; then
local confgcc_no_libc=( --disable-shared )
tc_version_is_at_least 4.8 && confgcc_no_libc+=( --disable-libatomic )
if ! has_version ${CATEGORY}/${needed_libc} ; then
confgcc+=(
"${confgcc_no_libc[@]}"
--disable-threads
--without-headers
)
elif built_with_use --hidden --missing false ${CATEGORY}/${needed_libc} crosscompile_opts_headers-only ; then
confgcc+=(
"${confgcc_no_libc[@]}"
--with-sysroot=${PREFIX}/${CTARGET}
)
else
confgcc+=( --with-sysroot=${PREFIX}/${CTARGET} )
fi
fi
tc_version_is_at_least 4.2 && confgcc+=( --disable-bootstrap )
else
if tc-is-static-only ; then
confgcc+=( --disable-shared )
else
confgcc+=( --enable-shared )
fi
case ${CHOST} in
mingw*|*-mingw*|*-cygwin)
confgcc+=( --enable-threads=win32 ) ;;
*)
confgcc+=( --enable-threads=posix ) ;;
esac
fi
# __cxa_atexit is "essential for fully standards-compliant handling of
# destructors", but apparently requires glibc.
case ${CTARGET} in
*-uclibc*)
confgcc+=(
--disable-__cxa_atexit
$(use_enable nptl tls)
)
tc_version_is_between 3.3 3.4 && confgcc+=( --enable-sjlj-exceptions )
if tc_version_is_between 3.4 4.3 ; then
confgcc+=( --enable-clocale=uclibc )
fi
;;
*-elf|*-eabi)
confgcc+=( --with-newlib )
;;
*-gnu*)
confgcc+=(
--enable-__cxa_atexit
--enable-clocale=gnu
)
;;
*-freebsd*)
confgcc+=( --enable-__cxa_atexit )
;;
*-solaris*)
confgcc+=( --enable-__cxa_atexit )
;;
esac
### arch options
gcc-multilib-configure
# ppc altivec support
confgcc+=( $(use_enable altivec) )
# gcc has fixed-point arithmetic support in 4.3 for mips targets that can
# significantly increase compile time by several hours. This will allow
# users to control this feature in the event they need the support.
tc_version_is_at_least 4.3 && confgcc+=( $(use_enable fixed-point) )
case $(tc-is-softfloat) in
yes) confgcc+=( --with-float=soft ) ;;
softfp) confgcc+=( --with-float=softfp ) ;;
*)
# If they've explicitly opt-ed in, do hardfloat,
# otherwise let the gcc default kick in.
case ${CTARGET//_/-} in
*-hardfloat-*|*eabihf) confgcc+=( --with-float=hard ) ;;
esac
esac
local with_abi_map=()
case $(tc-arch) in
arm) #264534 #414395
local a arm_arch=${CTARGET%%-*}
# Remove trailing endian variations first: eb el be bl b l
for a in e{b,l} {b,l}e b l ; do
if [[ ${arm_arch} == *${a} ]] ; then
arm_arch=${arm_arch%${a}}
break
fi
done
# Convert armv7{a,r,m} to armv7-{a,r,m}
[[ ${arm_arch} == armv7? ]] && arm_arch=${arm_arch/7/7-}
# See if this is a valid --with-arch flag
if (srcdir=${S}/gcc target=${CTARGET} with_arch=${arm_arch};
. "${srcdir}"/config.gcc) &>/dev/null
then
confgcc+=( --with-arch=${arm_arch} )
fi
# Make default mode thumb for microcontroller classes #418209
[[ ${arm_arch} == *-m ]] && confgcc+=( --with-mode=thumb )
# Enable hardvfp
if [[ $(tc-is-softfloat) == "no" ]] && \
[[ ${CTARGET} == armv[67]* ]] && \
tc_version_is_at_least 4.5
then
# Follow the new arm hardfp distro standard by default
confgcc+=( --with-float=hard )
case ${CTARGET} in
armv6*) confgcc+=( --with-fpu=vfp ) ;;
armv7*) confgcc+=( --with-fpu=vfpv3-d16 ) ;;
esac
fi
;;
mips)
# Add --with-abi flags to set default ABI
confgcc+=( --with-abi=$(gcc-abi-map ${TARGET_DEFAULT_ABI}) )
;;
amd64)
# drop the older/ABI checks once this get's merged into some
# version of gcc upstream
if tc_version_is_at_least 4.8 && has x32 $(get_all_abis TARGET) ; then
confgcc+=( --with-abi=$(gcc-abi-map ${TARGET_DEFAULT_ABI}) )
fi
;;
x86)
# Default arch for x86 is normally i386, lets give it a bump
# since glibc will do so based on CTARGET anyways
confgcc+=( --with-arch=${CTARGET%%-*} )
;;
hppa)
# Enable sjlj exceptions for backward compatibility on hppa
[[ ${GCCMAJOR} == "3" ]] && confgcc+=( --enable-sjlj-exceptions )
;;
ppc)
# Set up defaults based on current CFLAGS
is-flagq -mfloat-gprs=double && confgcc+=( --enable-e500-double )
[[ ${CTARGET//_/-} == *-e500v2-* ]] && confgcc+=( --enable-e500-double )
;;
esac
# if the target can do biarch (-m32/-m64), enable it. overhead should
# be small, and should simplify building of 64bit kernels in a 32bit
# userland by not needing sys-devel/kgcc64. #349405
case $(tc-arch) in
ppc|ppc64) tc_version_is_at_least 3.4 && confgcc+=( --enable-targets=all ) ;;
sparc) tc_version_is_at_least 4.4 && confgcc+=( --enable-targets=all ) ;;
amd64|x86) tc_version_is_at_least 4.3 && confgcc+=( --enable-targets=all ) ;;
esac
# On Darwin we need libdir to be set in order to get correct install names
# for things like libobjc-gnu, libgcj and libfortran. If we enable it on
# non-Darwin we screw up the behaviour this eclass relies on. We in
# particular need this over --libdir for bug #255315.
[[ ${CTARGET} == *-darwin* ]] && \
confgcc+=( --enable-version-specific-runtime-libs )
### library options
if ! is_gcj ; then
confgcc+=( --disable-libgcj )
elif use awt ; then
confgcc+=( --enable-java-awt=gtk )
fi
if tc_version_is_at_least 4.2 ; then
if in_iuse openmp ; then
# Make sure target has pthreads support. #326757 #335883
# There shouldn't be a chicken & egg problem here as openmp won't
# build without a C library, and you can't build that w/out
# already having a compiler ...
if ! is_crosscompile || \
$(tc-getCPP ${CTARGET}) -E - <<<"#include <pthread.h>" >& /dev/null
then
confgcc+=( $(use_enable openmp libgomp) )
else
# Force disable as the configure script can be dumb #359855
confgcc+=( --disable-libgomp )
fi
else
# For gcc variants where we don't want openmp (e.g. kgcc)
confgcc+=( --disable-libgomp )
fi
fi
if tc_version_is_at_least 4.0 ; then
if in_iuse mudflap ; then
confgcc+=( $(use_enable mudflap libmudflap) )
else
confgcc+=( --disable-libmudflap )
fi
if use_if_iuse libssp ; then
confgcc+=( --enable-libssp )
else
if hardened_gcc_is_stable ssp; then
export gcc_cv_libc_provides_ssp=yes
fi
confgcc+=( --disable-libssp )
fi
fi
if in_iuse cilk ; then
confgcc+=( $(use_enable cilk libcilkrts) )
fi
# newer gcc's come with libquadmath, but only fortran uses
# it, so auto punt it when we don't care
if tc_version_is_at_least 4.6 && ! is_fortran ; then
confgcc+=( --disable-libquadmath )
fi
if tc_version_is_at_least 4.6 ; then
confgcc+=( --enable-lto )
elif tc_version_is_at_least 4.5 ; then
confgcc+=( --disable-lto )
fi
# graphite was added in 4.4 but we only support it in 4.8+ due to external
# library issues. #448024
if tc_version_is_at_least 5.0 ; then
confgcc+=( $(use_with graphite isl) )
use graphite && confgcc+=( --disable-isl-version-check )
elif tc_version_is_at_least 4.8 ; then
confgcc+=( $(use_with graphite cloog) )
use graphite && confgcc+=( --disable-isl-version-check )
elif tc_version_is_at_least 4.4 ; then
confgcc+=( --without-{cloog,ppl} )
fi
if tc_version_is_at_least 4.8 ; then
confgcc+=( $(use_enable sanitize libsanitizer) )
fi
if tc_version_is_at_least 6.0 ; then
confgcc+=(
$(use_enable pie default-pie)
# This defaults to -fstack-protector-strong.
$(use_enable ssp default-ssp)
)
fi
# Disable gcc info regeneration -- it ships with generated info pages
# already. Our custom version/urls/etc... trigger it. #464008
export gcc_cv_prog_makeinfo_modern=no
# Do not let the X detection get in our way. We know things can be found
# via system paths, so no need to hardcode things that'll break multilib.
# Older gcc versions will detect ac_x_libraries=/usr/lib64 which ends up
# killing the 32bit builds which want /usr/lib.
export ac_cv_have_x='have_x=yes ac_x_includes= ac_x_libraries='
confgcc+=( "$@" ${EXTRA_ECONF} )
# Nothing wrong with a good dose of verbosity
echo
einfo "PREFIX: ${PREFIX}"
einfo "BINPATH: ${BINPATH}"
einfo "LIBPATH: ${LIBPATH}"
einfo "DATAPATH: ${DATAPATH}"
einfo "STDCXX_INCDIR: ${STDCXX_INCDIR}"
echo
einfo "Languages: ${GCC_LANG}"
echo
einfo "Configuring GCC with: ${confgcc[@]//--/\n\t--}"
echo
# Build in a separate build tree
mkdir -p "${WORKDIR}"/build
pushd "${WORKDIR}"/build > /dev/null
# and now to do the actual configuration
addwrite /dev/zero
echo "${S}"/configure "${confgcc[@]}"
# Older gcc versions did not detect bash and re-exec itself, so force the
# use of bash. Newer ones will auto-detect, but this is not harmeful.
CONFIG_SHELL="/bin/bash" \
bash "${S}"/configure "${confgcc[@]}" || die "failed to run configure"
# return to whatever directory we were in before
popd > /dev/null
}
# Replace -m flags unsupported by the version being built with the best
# available equivalent
downgrade_arch_flags() {
local arch bver i isa myarch mytune rep ver
bver=${1:-${GCC_BRANCH_VER}}
[[ $(gcc-version) < ${bver} ]] && return 0
[[ $(tc-arch) != amd64 && $(tc-arch) != x86 ]] && return 0
myarch=$(get-flag march)
mytune=$(get-flag mtune)
# If -march=native isn't supported we have to tease out the actual arch
if [[ ${myarch} == native || ${mytune} == native ]] ; then
if [[ ${bver} < 4.2 ]] ; then
arch=$($(tc-getCC) -march=native -v -E -P - </dev/null 2>&1 \
| sed -rn "/cc1.*-march/s:.*-march=([^ ']*).*:\1:p")
replace-cpu-flags native ${arch}
fi
fi
# Handle special -mtune flags
[[ ${mytune} == intel && ${bver} < 4.9 ]] && replace-cpu-flags intel generic
[[ ${mytune} == generic && ${bver} < 4.2 ]] && filter-flags '-mtune=*'
[[ ${mytune} == x86-64 ]] && filter-flags '-mtune=*'
[[ ${bver} < 3.4 ]] && filter-flags '-mtune=*'
# "added" "arch" "replacement"
local archlist=(
4.9 bdver4 bdver3
4.9 bonnell atom
4.9 broadwell core-avx2
4.9 haswell core-avx2
4.9 ivybridge core-avx-i
4.9 nehalem corei7
4.9 sandybridge corei7-avx
4.9 silvermont corei7
4.9 westmere corei7
4.8 bdver3 bdver2
4.8 btver2 btver1
4.7 bdver2 bdver1
4.7 core-avx2 core-avx-i
4.6 bdver1 amdfam10
4.6 btver1 amdfam10
4.6 core-avx-i core2
4.6 corei7 core2
4.6 corei7-avx core2
4.5 atom core2
4.3 amdfam10 k8
4.3 athlon64-sse3 k8
4.3 barcelona k8
4.3 core2 nocona
4.3 geode k6-2 # gcc.gnu.org/PR41989#c22
4.3 k8-sse3 k8
4.3 opteron-sse3 k8
3.4 athlon-fx x86-64
3.4 athlon64 x86-64
3.4 c3-2 c3
3.4 k8 x86-64
3.4 opteron x86-64
3.4 pentium-m pentium3
3.4 pentium3m pentium3
3.4 pentium4m pentium4
)
for ((i = 0; i < ${#archlist[@]}; i += 3)) ; do
myarch=$(get-flag march)
mytune=$(get-flag mtune)
ver=${archlist[i]}
arch=${archlist[i + 1]}
rep=${archlist[i + 2]}
[[ ${myarch} != ${arch} && ${mytune} != ${arch} ]] && continue
if [[ ${ver} > ${bver} ]] ; then
einfo "Replacing ${myarch} (added in gcc ${ver}) with ${rep}..."
[[ ${myarch} == ${arch} ]] && replace-cpu-flags ${myarch} ${rep}
[[ ${mytune} == ${arch} ]] && replace-cpu-flags ${mytune} ${rep}
continue
else
break
fi
done
# we only check -mno* here since -m* get removed by strip-flags later on
local isalist=(
4.9 -mno-sha
4.9 -mno-avx512pf
4.9 -mno-avx512f
4.9 -mno-avx512er
4.9 -mno-avx512cd
4.8 -mno-xsaveopt
4.8 -mno-xsave
4.8 -mno-rtm
4.8 -mno-fxsr
4.7 -mno-lzcnt
4.7 -mno-bmi2
4.7 -mno-avx2
4.6 -mno-tbm
4.6 -mno-rdrnd
4.6 -mno-fsgsbase
4.6 -mno-f16c
4.6 -mno-bmi
4.5 -mno-xop
4.5 -mno-movbe
4.5 -mno-lwp
4.5 -mno-fma4
4.4 -mno-pclmul
4.4 -mno-fma
4.4 -mno-avx
4.4 -mno-aes
4.3 -mno-ssse3
4.3 -mno-sse4a
4.3 -mno-sse4
4.3 -mno-sse4.2
4.3 -mno-sse4.1
4.3 -mno-popcnt
4.3 -mno-abm
)
for ((i = 0; i < ${#isalist[@]}; i += 2)) ; do
ver=${isalist[i]}
isa=${isalist[i + 1]}
[[ ${ver} > ${bver} ]] && filter-flags ${isa} ${isa/-m/-mno-}
done
}
gcc_do_filter_flags() {
strip-flags
replace-flags -O? -O2
# dont want to funk ourselves
filter-flags '-mabi*' -m31 -m32 -m64
filter-flags -frecord-gcc-switches # 490738
filter-flags -mno-rtm -mno-htm # 506202
if tc_version_is_between 3.2 3.4 ; then
# XXX: this is so outdated it's barely useful, but it don't hurt...
replace-cpu-flags G3 750
replace-cpu-flags G4 7400
replace-cpu-flags G5 7400
# XXX: should add a sed or something to query all supported flags
# from the gcc source and trim everything else ...
filter-flags -f{no-,}unit-at-a-time -f{no-,}web -mno-tls-direct-seg-refs
filter-flags -f{no-,}stack-protector{,-all}
filter-flags -fvisibility-inlines-hidden -fvisibility=hidden
fi
if tc_version_is_at_least 3.4 ; then
case $(tc-arch) in
amd64|x86)
filter-flags '-mcpu=*'
tc_version_is_between 4.4 4.5 && append-flags -mno-avx # 357287
if tc_version_is_between 4.6 4.7 ; then
# https://bugs.gentoo.org/411333
# https://bugs.gentoo.org/466454
replace-cpu-flags c3-2 pentium2 pentium3 pentium3m pentium-m i686
fi
;;
alpha)
# https://bugs.gentoo.org/454426
append-ldflags -Wl,--no-relax
;;
sparc)
# temporary workaround for random ICEs reproduced by multiple users
# https://bugs.gentoo.org/457062
tc_version_is_between 4.6 4.8 && MAKEOPTS+=" -j1"
;;
*-macos)
# http://gcc.gnu.org/PR25127
tc_version_is_between 4.0 4.2 && \
filter-flags '-mcpu=*' '-march=*' '-mtune=*'
;;
esac
fi
strip-unsupported-flags
# these are set here so we have something sane at configure time
if is_crosscompile ; then
# Set this to something sane for both native and target
CFLAGS="-O2 -pipe"
FFLAGS=${CFLAGS}
FCFLAGS=${CFLAGS}
local VAR="CFLAGS_"${CTARGET//-/_}
CXXFLAGS=${!VAR}
fi
export GCJFLAGS=${GCJFLAGS:-${CFLAGS}}
}
setup_minispecs_gcc_build_specs() {
# Setup the "build.specs" file for gcc 4.3 to use when building.
if hardened_gcc_works pie ; then
cat "${WORKDIR}"/specs/pie.specs >> "${WORKDIR}"/build.specs
fi
if hardened_gcc_works ssp ; then
for s in ssp sspall ; do
cat "${WORKDIR}"/specs/${s}.specs >> "${WORKDIR}"/build.specs
done
fi
for s in nostrict znow ; do
cat "${WORKDIR}"/specs/${s}.specs >> "${WORKDIR}"/build.specs
done
export GCC_SPECS="${WORKDIR}"/build.specs
}
gcc-multilib-configure() {
if ! is_multilib ; then
confgcc+=( --disable-multilib )
# Fun times: if we are building for a target that has multiple
# possible ABI formats, and the user has told us to pick one
# that isn't the default, then not specifying it via the list
# below will break that on us.
else
confgcc+=( --enable-multilib )
fi
# translate our notion of multilibs into gcc's
local abi list
for abi in $(get_all_abis TARGET) ; do
local l=$(gcc-abi-map ${abi})
[[ -n ${l} ]] && list+=",${l}"
done
if [[ -n ${list} ]] ; then
case ${CTARGET} in
x86_64*)
tc_version_is_at_least 4.8 && confgcc+=( --with-multilib-list=${list:1} )
;;
esac
fi
}
gcc-abi-map() {
# Convert the ABI name we use in Gentoo to what gcc uses
local map=()
case ${CTARGET} in
mips*) map=("o32 32" "n32 n32" "n64 64") ;;
x86_64*) map=("amd64 m64" "x86 m32" "x32 mx32") ;;
esac
local m
for m in "${map[@]}" ; do
l=( ${m} )
[[ $1 == ${l[0]} ]] && echo ${l[1]} && break
done
}
#----> src_compile <----
toolchain-offload_src_compile() {
touch "${S}"/gcc/c-gperf.h
# Do not make manpages if we do not have perl ...
[[ ! -x /usr/bin/perl ]] \
&& find "${WORKDIR}"/build -name '*.[17]' | xargs touch
gcc_do_make ${GCC_MAKE_TARGET}
}
gcc_do_make() {
# This function accepts one optional argument, the make target to be used.
# If omitted, gcc_do_make will try to guess whether it should use all,
# or bootstrap-lean depending on CTARGET and arch.
# An example of how to use this function:
#
# gcc_do_make all-target-libstdc++-v3
[[ -n ${1} ]] && GCC_MAKE_TARGET=${1}
# default target
if is_crosscompile || tc-is-cross-compiler ; then
# 3 stage bootstrapping doesnt quite work when you cant run the
# resulting binaries natively ^^;
GCC_MAKE_TARGET=${GCC_MAKE_TARGET-all}
else
GCC_MAKE_TARGET=${GCC_MAKE_TARGET-bootstrap-lean}
fi
# Older versions of GCC could not do profiledbootstrap in parallel due to
# collisions with profiling info.
# boundschecking also seems to introduce parallel build issues.
if [[ ${GCC_MAKE_TARGET} == "profiledbootstrap" ]] || use_if_iuse boundschecking ; then
! tc_version_is_at_least 4.6 && export MAKEOPTS="${MAKEOPTS} -j1"
fi
if [[ ${GCC_MAKE_TARGET} == "all" ]] ; then
STAGE1_CFLAGS=${STAGE1_CFLAGS-"${CFLAGS}"}
elif [[ $(gcc-version) == "3.4" && ${GCC_BRANCH_VER} == "3.4" ]] && gcc-specs-ssp ; then
# See bug #79852
STAGE1_CFLAGS=${STAGE1_CFLAGS-"-O2"}
fi
if is_crosscompile; then
# In 3.4, BOOT_CFLAGS is never used on a crosscompile...
# but I'll leave this in anyways as someone might have had
# some reason for putting it in here... --eradicator
BOOT_CFLAGS=${BOOT_CFLAGS-"-O2"}
else
# we only want to use the system's CFLAGS if not building a
# cross-compiler.
BOOT_CFLAGS=${BOOT_CFLAGS-"$(get_abi_CFLAGS ${TARGET_DEFAULT_ABI}) ${CFLAGS}"}
fi
einfo "Compiling ${PN} (${GCC_MAKE_TARGET})..."
pushd "${WORKDIR}"/build >/dev/null
emake \
LDFLAGS="${LDFLAGS}" \
STAGE1_CFLAGS="${STAGE1_CFLAGS}" \
LIBPATH="${LIBPATH}" \
BOOT_CFLAGS="${BOOT_CFLAGS}" \
${GCC_MAKE_TARGET} \
|| die "emake failed with ${GCC_MAKE_TARGET}"
if ! is_crosscompile && use cxx && use_if_iuse doc ; then
if type -p doxygen > /dev/null ; then
if tc_version_is_at_least 4.3 ; then
cd "${CTARGET}"/libstdc++-v3/doc
emake doc-man-doxygen || ewarn "failed to make docs"
elif tc_version_is_at_least 3.0 ; then
cd "${CTARGET}"/libstdc++-v3
emake doxygen-man || ewarn "failed to make docs"
fi
# Clean bogus manpages. #113902
find -name '*_build_*' -delete
# Blow away generated directory references. Newer versions of gcc
# have gotten better at this, but not perfect. This is easier than
# backporting all of the various doxygen patches. #486754
find -name '*_.3' -exec grep -l ' Directory Reference ' {} + | \
xargs rm -f
else
ewarn "Skipping libstdc++ manpage generation since you don't have doxygen installed"
fi
fi
popd >/dev/null
}
#---->> src_test <<----
toolchain-offload_src_test() {
if use regression-test ; then
cd "${WORKDIR}"/build
emake -k check
fi
}
#---->> src_install <<----
toolchain-offload_src_install() {
cd "${WORKDIR}"/build
# Do allow symlinks in private gcc include dir as this can break the build
find gcc/include*/ -type l -delete
# Copy over the info pages. We disabled their generation earlier, but the
# build system only expects to install out of the build dir, not the source. #464008
mkdir -p gcc/doc
local x=
for x in "${S}"/gcc/doc/*.info* ; do
if [[ -f ${x} ]] ; then
cp "${x}" gcc/doc/ || die
fi
done
# We remove the generated fixincludes, as they can cause things to break
# (ncurses, openssl, etc). We do not prevent them from being built, as
# in the following commit which we revert:
# http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/eclass/toolchain.eclass?r1=1.647&r2=1.648
# This is because bsd userland needs fixedincludes to build gcc, while
# linux does not. Both can dispose of them afterwards.
while read x ; do
grep -q 'It has been auto-edited by fixincludes from' "${x}" \
&& rm -f "${x}"
done < <(find gcc/include*/ -name '*.h')
# Do the 'make install' from the build directory
S="${WORKDIR}"/build emake -j1 DESTDIR="${D}" install || die
# Punt some tools which are really only useful while building gcc
find "${D}" -name install-tools -prune -type d -exec rm -rf "{}" \;
# This one comes with binutils
find "${D}" -name libiberty.a -delete
# Move the libraries to the proper location
gcc_movelibs
# Basic sanity check
if ! is_crosscompile ; then
local EXEEXT
eval $(grep ^EXEEXT= "${WORKDIR}"/build/gcc/config.log)
[[ -r ${D}${BINPATH}/gcc${EXEEXT} ]] || die "gcc not found in ${D}"
fi
dodir /etc/env.d/gcc
create_gcc_env_entry
# Setup the gcc_env_entry for hardened gcc 4 with minispecs
want_minispecs && copy_minispecs_gcc_specs
# Make sure we dont have stuff lying around that
# can nuke multiple versions of gcc
gcc_slot_java
dodir /usr/bin
cd "${D}"${BINPATH}
# Ugh: we really need to auto-detect this list.
# It's constantly out of date.
for x in cpp gcc g++ c++ gcov g77 gcj gcjh gfortran gccgo ; do
# For some reason, g77 gets made instead of ${CTARGET}-g77...
# this should take care of that
[[ -f ${x} ]] && mv ${x} ${CTARGET}-${x}
if [[ -f ${CTARGET}-${x} ]] ; then
if ! is_crosscompile ; then
ln -sf ${CTARGET}-${x} ${x}
dosym ${BINPATH}/${CTARGET}-${x} \
/usr/bin/${x}-${GCC_CONFIG_VER}
fi
# Create versioned symlinks
dosym ${BINPATH}/${CTARGET}-${x} \
/usr/bin/${CTARGET}-${x}-${GCC_CONFIG_VER}
fi
if [[ -f ${CTARGET}-${x}-${GCC_CONFIG_VER} ]] ; then
rm -f ${CTARGET}-${x}-${GCC_CONFIG_VER}
ln -sf ${CTARGET}-${x} ${CTARGET}-${x}-${GCC_CONFIG_VER}
fi
done
# Now do the fun stripping stuff
env RESTRICT="" CHOST=${CHOST} prepstrip "${D}${BINPATH}"
env RESTRICT="" CHOST=${CTARGET} prepstrip "${D}${LIBPATH}"
# gcc used to install helper binaries in lib/ but then moved to libexec/
[[ -d ${D}${PREFIX}/libexec/gcc ]] && \
env RESTRICT="" CHOST=${CHOST} prepstrip "${D}${PREFIX}/libexec/gcc/${CTARGET}/${GCC_CONFIG_VER}"
cd "${S}"
if is_crosscompile; then
rm -rf "${D}"/usr/share/{man,info}
rm -rf "${D}"${DATAPATH}/{man,info}
else
if tc_version_is_at_least 3.0 ; then
local cxx_mandir=$(find "${WORKDIR}/build/${CTARGET}/libstdc++-v3" -name man)
if [[ -d ${cxx_mandir} ]] ; then
cp -r "${cxx_mandir}"/man? "${D}/${DATAPATH}"/man/
fi
fi
has noinfo ${FEATURES} \
&& rm -r "${D}/${DATAPATH}"/info \
|| prepinfo "${DATAPATH}"
has noman ${FEATURES} \
&& rm -r "${D}/${DATAPATH}"/man \
|| prepman "${DATAPATH}"
fi
# prune empty dirs left behind
find "${D}" -depth -type d -delete 2>/dev/null
# install testsuite results
if use regression-test; then
docinto testsuite
find "${WORKDIR}"/build -type f -name "*.sum" -print0 | xargs -0 dodoc
find "${WORKDIR}"/build -type f -path "*/testsuite/*.log" -print0 \
| xargs -0 dodoc
fi
# Rather install the script, else portage with changing $FILESDIR
# between binary and source package borks things ....
if ! is_crosscompile ; then
insinto "${DATAPATH}"
newins "${GCC_FILESDIR}"/awk/fixlafiles.awk-no_gcc_la fixlafiles.awk || die
find "${D}/${LIBPATH}" -name libstdc++.la -type f -delete
find "${D}/${LIBPATH}" -name 'lib*san.la' -type f -delete #487550 #546700
exeinto "${DATAPATH}"
doexe "${GCC_FILESDIR}"/fix_libtool_files.sh || die
doexe "${GCC_FILESDIR}"/c{89,99} || die
fi
# Use gid of 0 because some stupid ports don't have
# the group 'root' set to gid 0. Send to /dev/null
# for people who are testing as non-root.
chown -R root:0 "${D}"${LIBPATH} 2>/dev/null
# Move pretty-printers to gdb datadir to shut ldconfig up
local py gdbdir=/usr/share/gdb/auto-load${LIBPATH/\/lib\//\/$(get_libdir)\/}
pushd "${D}"${LIBPATH} >/dev/null
for py in $(find . -name '*-gdb.py') ; do
local multidir=${py%/*}
insinto "${gdbdir}/${multidir}"
sed -i "/^libdir =/s:=.*:= '${LIBPATH}/${multidir}':" "${py}" || die #348128
doins "${py}" || die
rm "${py}" || die
done
popd >/dev/null
# Don't scan .gox files for executable stacks - false positives
export QA_EXECSTACK="usr/lib*/go/*/*.gox"
export QA_WX_LOAD="usr/lib*/go/*/*.gox"
# Disable RANDMMAP so PCH works. #301299
if tc_version_is_at_least 4.3 ; then
pax-mark -r "${D}${PREFIX}/libexec/gcc/${CTARGET}/${GCC_CONFIG_VER}/cc1"
pax-mark -r "${D}${PREFIX}/libexec/gcc/${CTARGET}/${GCC_CONFIG_VER}/cc1plus"
fi
}
# Move around the libs to the right location. For some reason,
# when installing gcc, it dumps internal libraries into /usr/lib
# instead of the private gcc lib path
gcc_movelibs() {
# older versions of gcc did not support --print-multi-os-directory
tc_version_is_at_least 3.2 || return 0
local x multiarg removedirs=""
for multiarg in $($(XGCC) -print-multi-lib) ; do
multiarg=${multiarg#*;}
multiarg=${multiarg//@/ -}
local OS_MULTIDIR=$($(XGCC) ${multiarg} --print-multi-os-directory)
local MULTIDIR=$($(XGCC) ${multiarg} --print-multi-directory)
local TODIR=${D}${LIBPATH}/${MULTIDIR}
local FROMDIR=
[[ -d ${TODIR} ]] || mkdir -p ${TODIR}
for FROMDIR in \
${LIBPATH}/${OS_MULTIDIR} \
${LIBPATH}/../${MULTIDIR} \
${PREFIX}/lib/${OS_MULTIDIR} \
${PREFIX}/${CTARGET}/lib/${OS_MULTIDIR}
do
removedirs="${removedirs} ${FROMDIR}"
FROMDIR=${D}${FROMDIR}
if [[ ${FROMDIR} != "${TODIR}" && -d ${FROMDIR} ]] ; then
local files=$(find "${FROMDIR}" -maxdepth 1 ! -type d 2>/dev/null)
if [[ -n ${files} ]] ; then
mv ${files} "${TODIR}" || die
fi
fi
done
fix_libtool_libdir_paths "${LIBPATH}/${MULTIDIR}"
# SLOT up libgcj.pc if it's available (and let gcc-config worry about links)
FROMDIR="${PREFIX}/lib/${OS_MULTIDIR}"
for x in "${D}${FROMDIR}"/pkgconfig/libgcj*.pc ; do
[[ -f ${x} ]] || continue
sed -i "/^libdir=/s:=.*:=${LIBPATH}/${MULTIDIR}:" "${x}" || die
mv "${x}" "${D}${FROMDIR}"/pkgconfig/libgcj-${GCC_PV}.pc || die
done
done
# We remove directories separately to avoid this case:
# mv SRC/lib/../lib/*.o DEST
# rmdir SRC/lib/../lib/
# mv SRC/lib/../lib32/*.o DEST # Bork
for FROMDIR in ${removedirs} ; do
rmdir "${D}"${FROMDIR} >& /dev/null
done
find "${D}" -type d | xargs rmdir >& /dev/null
}
# make sure the libtool archives have libdir set to where they actually
# -are-, and not where they -used- to be. also, any dependencies we have
# on our own .la files need to be updated.
fix_libtool_libdir_paths() {
local libpath="$1"
pushd "${D}" >/dev/null
pushd "./${libpath}" >/dev/null
local dir="${PWD#${D%/}}"
local allarchives=$(echo *.la)
allarchives="\(${allarchives// /\\|}\)"
popd >/dev/null
# The libdir might not have any .la files. #548782
find "./${dir}" -maxdepth 1 -name '*.la' \
-exec sed -i -e "/^libdir=/s:=.*:='${dir}':" {} + || die
# Would be nice to combine these, but -maxdepth can not be specified
# on sub-expressions.
find "./${PREFIX}"/lib* -maxdepth 3 -name '*.la' \
-exec sed -i -e "/^dependency_libs=/s:/[^ ]*/${allarchives}:${libpath}/\1:g" {} + || die
find "./${dir}/" -maxdepth 1 -name '*.la' \
-exec sed -i -e "/^dependency_libs=/s:/[^ ]*/${allarchives}:${libpath}/\1:g" {} + || die
popd >/dev/null
}
create_gcc_env_entry() {
dodir /etc/env.d/gcc
local gcc_envd_base="/etc/env.d/gcc/${CTARGET}-${GCC_CONFIG_VER}"
local gcc_specs_file
local gcc_envd_file="${D}${gcc_envd_base}"
if [[ -z $1 ]] ; then
# I'm leaving the following commented out to remind me that it
# was an insanely -bad- idea. Stuff broke. GCC_SPECS isnt unset
# on chroot or in non-toolchain.eclass gcc ebuilds!
#gcc_specs_file="${LIBPATH}/specs"
gcc_specs_file=""
else
gcc_envd_file+="-$1"
gcc_specs_file="${LIBPATH}/$1.specs"
fi
# We want to list the default ABI's LIBPATH first so libtool
# searches that directory first. This is a temporary
# workaround for libtool being stupid and using .la's from
# conflicting ABIs by using the first one in the search path
local ldpaths mosdirs
if tc_version_is_at_least 3.2 ; then
local mdir mosdir abi ldpath
for abi in $(get_all_abis TARGET) ; do
mdir=$($(XGCC) $(get_abi_CFLAGS ${abi}) --print-multi-directory)
ldpath=${LIBPATH}
[[ ${mdir} != "." ]] && ldpath+="/${mdir}"
ldpaths="${ldpath}${ldpaths:+:${ldpaths}}"
mosdir=$($(XGCC) $(get_abi_CFLAGS ${abi}) -print-multi-os-directory)
mosdirs="${mosdir}${mosdirs:+:${mosdirs}}"
done
else
# Older gcc's didn't do multilib, so logic is simple.
ldpaths=${LIBPATH}
fi
cat <<-EOF > ${gcc_envd_file}
PATH="${BINPATH}"
ROOTPATH="${BINPATH}"
GCC_PATH="${BINPATH}"
LDPATH="${ldpaths}"
MANPATH="${DATAPATH}/man"
INFOPATH="${DATAPATH}/info"
STDCXX_INCDIR="${STDCXX_INCDIR##*/}"
CTARGET="${CTARGET}"
GCC_SPECS="${gcc_specs_file}"
MULTIOSDIRS="${mosdirs}"
EOF
}
copy_minispecs_gcc_specs() {
# setup the hardenedno* specs files and the vanilla specs file.
if hardened_gcc_works ; then
create_gcc_env_entry hardenednopiessp
fi
if hardened_gcc_works pie ; then
create_gcc_env_entry hardenednopie
fi
if hardened_gcc_works ssp ; then
create_gcc_env_entry hardenednossp
fi
create_gcc_env_entry vanilla
insinto ${LIBPATH}
doins "${WORKDIR}"/specs/*.specs || die "failed to install specs"
# Build system specs file which, if it exists, must be a complete set of
# specs as it completely and unconditionally overrides the builtin specs.
if ! tc_version_is_at_least 4.4 ; then
$(XGCC) -dumpspecs > "${WORKDIR}"/specs/specs
cat "${WORKDIR}"/build.specs >> "${WORKDIR}"/specs/specs
doins "${WORKDIR}"/specs/specs || die "failed to install the specs file"
fi
}
gcc_slot_java() {
local x
# Move Java headers to compiler-specific dir
for x in "${D}"${PREFIX}/include/gc*.h "${D}"${PREFIX}/include/j*.h ; do
[[ -f ${x} ]] && mv -f "${x}" "${D}"${LIBPATH}/include/
done
for x in gcj gnu java javax org ; do
if [[ -d ${D}${PREFIX}/include/${x} ]] ; then
dodir /${LIBPATH}/include/${x}
mv -f "${D}"${PREFIX}/include/${x}/* "${D}"${LIBPATH}/include/${x}/
rm -rf "${D}"${PREFIX}/include/${x}
fi
done
if [[ -d ${D}${PREFIX}/lib/security ]] || [[ -d ${D}${PREFIX}/$(get_libdir)/security ]] ; then
dodir /${LIBPATH}/security
mv -f "${D}"${PREFIX}/lib*/security/* "${D}"${LIBPATH}/security
rm -rf "${D}"${PREFIX}/lib*/security
fi
# Move random gcj files to compiler-specific directories
for x in libgcj.spec logging.properties ; do
x="${D}${PREFIX}/lib/${x}"
[[ -f ${x} ]] && mv -f "${x}" "${D}"${LIBPATH}/
done
# Rename jar because it could clash with Kaffe's jar if this gcc is
# primary compiler (aka don't have the -<version> extension)
cd "${D}"${BINPATH}
[[ -f jar ]] && mv -f jar gcj-jar
}
#---->> pkg_post* <<----
toolchain-offload_pkg_postinst() {
do_gcc_config
if ! is_crosscompile ; then
echo
ewarn "If you have issues with packages unable to locate libstdc++.la,"
ewarn "then try running 'fix_libtool_files.sh' on the old gcc versions."
echo
ewarn "You might want to review the GCC upgrade guide when moving between"
ewarn "major versions (like 4.2 to 4.3):"
ewarn "http://www.gentoo.org/doc/en/gcc-upgrading.xml"
echo
# Clean up old paths
rm -f "${ROOT}"/*/rcscripts/awk/fixlafiles.awk "${ROOT}"/sbin/fix_libtool_files.sh
rmdir "${ROOT}"/*/rcscripts{/awk,} 2>/dev/null
mkdir -p "${ROOT}"/usr/{share/gcc-data,sbin,bin}
cp "${ROOT}/${DATAPATH}"/fixlafiles.awk "${ROOT}"/usr/share/gcc-data/ || die
cp "${ROOT}/${DATAPATH}"/fix_libtool_files.sh "${ROOT}"/usr/sbin/ || die
# Since these aren't critical files and portage sucks with
# handling of binpkgs, don't require these to be found
cp "${ROOT}/${DATAPATH}"/c{89,99} "${ROOT}"/usr/bin/ 2>/dev/null
fi
if use regression-test ; then
elog "Testsuite results have been installed into /usr/share/doc/${PF}/testsuite"
echo
fi
if [[ -n ${PRERELEASE}${SNAPSHOT} ]] ; then
einfo "This GCC ebuild is provided for your convenience, and the use"
einfo "of this compiler is not supported by the Gentoo Developers."
einfo "Please report bugs to upstream at http://gcc.gnu.org/bugzilla/"
fi
}
toolchain-offload_pkg_postrm() {
# to make our lives easier (and saner), we do the fix_libtool stuff here.
# rather than checking SLOT's and trying in upgrade paths, we just see if
# the common libstdc++.la exists in the ${LIBPATH} of the gcc that we are
# unmerging. if it does, that means this was a simple re-emerge.
# clean up the cruft left behind by cross-compilers
if is_crosscompile ; then
if [[ -z $(ls "${ROOT}"/etc/env.d/gcc/${CTARGET}* 2>/dev/null) ]] ; then
rm -f "${ROOT}"/etc/env.d/gcc/config-${CTARGET}
rm -f "${ROOT}"/etc/env.d/??gcc-${CTARGET}
rm -f "${ROOT}"/usr/bin/${CTARGET}-{gcc,{g,c}++}{,32,64}
fi
return 0
fi
# ROOT isnt handled by the script
[[ ${ROOT} != "/" ]] && return 0
if [[ ! -e ${LIBPATH}/libstdc++.so ]] ; then
# make sure the profile is sane during same-slot upgrade #289403
do_gcc_config
einfo "Running 'fix_libtool_files.sh ${GCC_RELEASE_VER}'"
/usr/sbin/fix_libtool_files.sh ${GCC_RELEASE_VER}
if [[ -n ${BRANCH_UPDATE} ]] ; then
einfo "Running 'fix_libtool_files.sh ${GCC_RELEASE_VER}-${BRANCH_UPDATE}'"
/usr/sbin/fix_libtool_files.sh ${GCC_RELEASE_VER}-${BRANCH_UPDATE}
fi
fi
return 0
}
do_gcc_config() {
if ! should_we_gcc_config ; then
env -i ROOT="${ROOT}" gcc-config --use-old --force
return 0
fi
local current_gcc_config="" current_specs="" use_specs=""
current_gcc_config=$(env -i ROOT="${ROOT}" gcc-config -c ${CTARGET} 2>/dev/null)
if [[ -n ${current_gcc_config} ]] ; then
# figure out which specs-specific config is active
current_specs=$(gcc-config -S ${current_gcc_config} | awk '{print $3}')
[[ -n ${current_specs} ]] && use_specs=-${current_specs}
fi
if [[ -n ${use_specs} ]] && \
[[ ! -e ${ROOT}/etc/env.d/gcc/${CTARGET}-${GCC_CONFIG_VER}${use_specs} ]]
then
ewarn "The currently selected specs-specific gcc config,"
ewarn "${current_specs}, doesn't exist anymore. This is usually"
ewarn "due to enabling/disabling hardened or switching to a version"
ewarn "of gcc that doesnt create multiple specs files. The default"
ewarn "config will be used, and the previous preference forgotten."
use_specs=""
fi
gcc-config ${CTARGET}-${GCC_CONFIG_VER}${use_specs}
}
should_we_gcc_config() {
# if the current config is invalid, we definitely want a new one
# Note: due to bash quirkiness, the following must not be 1 line
local curr_config
curr_config=$(env -i ROOT="${ROOT}" gcc-config -c ${CTARGET} 2>&1) || return 0
# if the previously selected config has the same major.minor (branch) as
# the version we are installing, then it will probably be uninstalled
# for being in the same SLOT, make sure we run gcc-config.
local curr_config_ver=$(env -i ROOT="${ROOT}" gcc-config -S ${curr_config} | awk '{print $2}')
local curr_branch_ver=$(get_version_component_range 1-2 ${curr_config_ver})
# If we're using multislot, just run gcc-config if we're installing
# to the same profile as the current one.
use multislot && return $([[ ${curr_config_ver} == ${GCC_CONFIG_VER} ]])
if [[ ${curr_branch_ver} == ${GCC_BRANCH_VER} ]] ; then
return 0
else
# if we're installing a genuinely different compiler version,
# we should probably tell the user -how- to switch to the new
# gcc version, since we're not going to do it for him/her.
# We don't want to switch from say gcc-3.3 to gcc-3.4 right in
# the middle of an emerge operation (like an 'emerge -e world'
# which could install multiple gcc versions).
# Only warn if we're installing a pkg as we might be called from
# the pkg_{pre,post}rm steps. #446830
if [[ ${EBUILD_PHASE} == *"inst" ]] ; then
einfo "The current gcc config appears valid, so it will not be"
einfo "automatically switched for you. If you would like to"
einfo "switch to the newly installed gcc version, do the"
einfo "following:"
echo
einfo "gcc-config ${CTARGET}-${GCC_CONFIG_VER}"
einfo "source /etc/profile"
echo
fi
return 1
fi
}
#---->> support and misc functions <<----
# This is to make sure we don't accidentally try to enable support for a
# language that doesnt exist. GCC 3.4 supports f77, while 4.0 supports f95, etc.
#
# Also add a hook so special ebuilds (kgcc64) can control which languages
# exactly get enabled
gcc-lang-supported() {
grep ^language=\"${1}\" "${S}"/gcc/*/config-lang.in > /dev/null || return 1
[[ -z ${TOOLCHAIN_ALLOWED_LANGS} ]] && return 0
has $1 ${TOOLCHAIN_ALLOWED_LANGS}
}
is_ada() {
gcc-lang-supported ada || return 1
use ada
}
is_cxx() {
gcc-lang-supported 'c++' || return 1
! is_crosscompile && tc_version_is_at_least 4.8 && return 0
use cxx
}
is_d() {
gcc-lang-supported d || return 1
use_if_iuse d
}
is_f77() {
gcc-lang-supported f77 || return 1
use fortran
}
is_f95() {
gcc-lang-supported f95 || return 1
use fortran
}
is_fortran() {
gcc-lang-supported fortran || return 1
use fortran
}
is_gcj() {
gcc-lang-supported java || return 1
use cxx && use_if_iuse gcj
}
is_go() {
gcc-lang-supported go || return 1
use cxx && use_if_iuse go
}
is_multilib() {
tc_version_is_at_least 3 || return 1
use multilib
}
is_objc() {
gcc-lang-supported objc || return 1
use_if_iuse objc
}
is_objcxx() {
gcc-lang-supported 'obj-c++' || return 1
use cxx && use_if_iuse objc++
}
# Grab a variable from the build system (taken from linux-info.eclass)
get_make_var() {
local var=$1 makefile=${2:-${WORKDIR}/build/Makefile}
echo -e "e:\\n\\t@echo \$(${var})\\ninclude ${makefile}" | \
r=${makefile%/*} emake --no-print-directory -s -f - 2>/dev/null
}
XGCC() { get_make_var GCC_FOR_TARGET ; }
# The gentoo piessp patches allow for 3 configurations:
# 1) PIE+SSP by default
# 2) PIE by default
# 3) SSP by default
hardened_gcc_works() {
if [[ $1 == "pie" ]] ; then
# $gcc_cv_ld_pie is unreliable as it simply take the output of
# `ld --help | grep -- -pie`, that reports the option in all cases, also if
# the loader doesn't actually load the resulting executables.
# To avoid breakage, blacklist FreeBSD here at least
[[ ${CTARGET} == *-freebsd* ]] && return 1
want_pie || return 1
use_if_iuse nopie && return 1
hardened_gcc_is_stable pie
return $?
elif [[ $1 == "ssp" ]] ; then
[[ -n ${SPECS_VER} ]] || return 1
use_if_iuse nossp && return 1
hardened_gcc_is_stable ssp
return $?
else
# laziness ;)
hardened_gcc_works pie || return 1
hardened_gcc_works ssp || return 1
return 0
fi
}
hardened_gcc_is_stable() {
local tocheck
if [[ $1 == "pie" ]] ; then
if [[ ${CTARGET} == *-uclibc* ]] ; then
tocheck=${PIE_UCLIBC_STABLE}
else
tocheck=${PIE_GLIBC_STABLE}
fi
elif [[ $1 == "ssp" ]] ; then
if [[ ${CTARGET} == *-uclibc* ]] ; then
tocheck=${SSP_UCLIBC_STABLE}
elif [[ ${CTARGET} == *-gnu* ]] ; then
tocheck=${SSP_STABLE}
fi
else
die "hardened_gcc_stable needs to be called with pie or ssp"
fi
has $(tc-arch) ${tocheck} && return 0
return 1
}
want_minispecs() {
if tc_version_is_at_least 4.3.2 && use hardened ; then
if ! want_pie ; then
ewarn "PIE_VER or SPECS_VER is not defined in the GCC ebuild."
elif use vanilla ; then
ewarn "You will not get hardened features if you have the vanilla USE-flag."
elif use nopie && use nossp ; then
ewarn "You will not get hardened features if you have the nopie and nossp USE-flag."
elif ! hardened_gcc_works ; then
ewarn "Your $(tc-arch) arch is not supported."
else
return 0
fi
ewarn "Hope you know what you are doing. Hardened will not work."
return 0
fi
return 1
}
want_pie() {
! use hardened && [[ -n ${PIE_VER} ]] && use nopie && return 1
[[ -n ${PIE_VER} ]] && [[ -n ${SPECS_VER} ]] && return 0
tc_version_is_at_least 4.3.2 && return 1
[[ -z ${PIE_VER} ]] && return 1
use !nopie && return 0
return 1
}
has toolchain-offload_death_notice ${EBUILD_DEATH_HOOKS} || EBUILD_DEATH_HOOKS+=" toolchain-offload_death_notice"
toolchain-offload_death_notice() {
if [[ -e "${WORKDIR}"/build ]] ; then
pushd "${WORKDIR}"/build >/dev/null
(echo '' | $(tc-getCC ${CTARGET}) ${CFLAGS} -v -E - 2>&1) > gccinfo.log
[[ -e "${T}"/build.log ]] && cp "${T}"/build.log .
tar jcf "${WORKDIR}"/gcc-build-logs.tar.bz2 \
gccinfo.log build.log $(find -name config.log)
rm gccinfo.log build.log
eerror
eerror "Please include ${WORKDIR}/gcc-build-logs.tar.bz2 in your bug report."
eerror
popd >/dev/null
fi
}
[-- Attachment #3: gcc-micemul.patch --]
[-- Type: text/x-patch, Size: 619 bytes --]
--- gcc-5.2.0.ebuild 2015-08-30 01:31:02.000000000 -0400
+++ /usr/local/crossdev/cross-x86_64-intelmicemul-linux-gnu/gcc/gcc-5.2.0.ebuild 2015-09-11 21:47:52.000000000 -0400
@@ -20,7 +20,7 @@ SSP_STABLE="amd64 x86 mips ppc ppc64 arm
SSP_UCLIBC_STABLE="x86 amd64 mips ppc ppc64 arm"
#end Hardened stuff
-inherit toolchain
+inherit toolchain-offload
#KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc ~x86"
@@ -41,5 +41,5 @@ src_prepare() {
fi
is_crosscompile && EPATCH_EXCLUDE+=" 05_all_gcc-spec-env.patch"
- toolchain_src_prepare
+ toolchain-offload_src_prepare
}
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