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eclass/toolchain: Sync with Gentoo

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It's from Gentoo commit 4c9b4d49518302cbe0982834b279a90bf7c5b304.
This commit is contained in:
Flatcar Buildbot 2023-07-03 07:17:02 +00:00 committed by Krzesimir Nowak
parent cf2e1de136
commit 8853b11c62
1 changed files with 21 additions and 17 deletions
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38
sdk_container/src/third_party/portage-stable/eclass/toolchain.eclass vendored
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@ -380,17 +380,13 @@ fi
# Set the source directory depending on whether we're using
# a live git tree, snapshot, or release tarball.
if [[ ${TOOLCHAIN_SET_S} == yes ]] ; then
s_path=
if tc_is_live ; then
s_path=${EGIT_CHECKOUT_DIR}
S=${EGIT_CHECKOUT_DIR}
elif [[ -n ${SNAPSHOT} ]] ; then
s_path=${WORKDIR}/gcc-${SNAPSHOT}
S=${WORKDIR}/gcc-${SNAPSHOT}
else
s_path=${WORKDIR}/gcc-${GCC_RELEASE_VER}
S=${WORKDIR}/gcc-${GCC_RELEASE_VER}
fi
S="${s_path}"
unset s_path
fi
gentoo_urls() {
@ -573,7 +569,7 @@ toolchain_src_prepare() {
eapply_user
if ! use vanilla ; then
make_gcc_hard
tc_enable_hardened_gcc
fi
# Make sure the pkg-config files install into multilib dirs.
@ -657,8 +653,8 @@ do_gcc_gentoo_patches() {
}
# configure to build with the hardened GCC specs as the default
make_gcc_hard() {
local gcc_hard_flags=""
tc_enable_hardened_gcc() {
local hardened_gcc_flags=""
if _tc_use_if_iuse pie ; then
einfo "Updating gcc to use automatic PIE building ..."
@ -671,13 +667,13 @@ make_gcc_hard() {
if _tc_use_if_iuse default-stack-clash-protection ; then
# The define DEF_GENTOO_SCP is checked in 24_all_DEF_GENTOO_SCP-fstack-clash-protection.patch
einfo "Updating gcc to use automatic stack clash protection ..."
gcc_hard_flags+=" -DDEF_GENTOO_SCP"
hardened_gcc_flags+=" -DDEF_GENTOO_SCP"
fi
if _tc_use_if_iuse default-znow ; then
# The define DEF_GENTOO_ZNOW is checked in 23_all_DEF_GENTOO_ZNOW-z-now.patch
einfo "Updating gcc to request symbol resolution at start (-z now) ..."
gcc_hard_flags+=" -DDEF_GENTOO_ZNOW"
hardened_gcc_flags+=" -DDEF_GENTOO_ZNOW"
fi
if _tc_use_if_iuse hardened ; then
@ -685,14 +681,14 @@ make_gcc_hard() {
# * -fstack-clash-protection
# * -z now
# See gcc *_all_extra-options.patch patches.
gcc_hard_flags+=" -DEXTRA_OPTIONS"
hardened_gcc_flags+=" -DEXTRA_OPTIONS"
# Default to -D_FORTIFY_SOURCE=3 instead of -D_FORTIFY_SOURCE=2
gcc_hard_flags+=" -DGENTOO_FORTIFY_SOURCE_LEVEL=3"
hardened_gcc_flags+=" -DGENTOO_FORTIFY_SOURCE_LEVEL=3"
# Add -D_GLIBCXX_ASSERTIONS
gcc_hard_flags+=" -DDEF_GENTOO_GLIBCXX_ASSERTIONS"
hardened_gcc_flags+=" -DDEF_GENTOO_GLIBCXX_ASSERTIONS"
if _tc_use_if_iuse cet && [[ ${CTARGET} == *x86_64*-linux* ]] ; then
gcc_hard_flags+=" -DEXTRA_OPTIONS_CF"
hardened_gcc_flags+=" -DEXTRA_OPTIONS_CF"
fi
# Rebrand to make bug reports easier
@ -710,7 +706,7 @@ make_gcc_hard() {
-i "${S}"/gcc/Makefile.in || die
sed -i \
-e "/^HARD_CFLAGS = /s|=|= ${gcc_hard_flags} |" \
-e "/^HARD_CFLAGS = /s|=|= ${hardened_gcc_flags} |" \
"${S}"/gcc/Makefile.in || die
}
@ -1287,6 +1283,14 @@ toolchain_src_configure() {
fi
fi
if in_iuse default-znow && tc_version_is_at_least 14.0.0_pre20230619 ${PV}; then
# See https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=33ebb0dff9bb022f1e0709e0e73faabfc3df7931.
# TODO: Add to LDFLAGS_FOR_TARGET?
confgcc+=(
$(use_enable default-znow host-bind-now)
)
fi
if in_iuse ssp ; then
confgcc+=(
# This defaults to -fstack-protector-strong.