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-rw-r--r--eclass/toolchain.eclass14
1 files changed, 13 insertions, 1 deletions
diff --git a/eclass/toolchain.eclass b/eclass/toolchain.eclass
index 2bed15110ece..f5230821cfde 100644
--- a/eclass/toolchain.eclass
+++ b/eclass/toolchain.eclass
@@ -277,6 +277,8 @@ if [[ ${PN} != kgcc64 && ${PN} != gcc-* ]] ; then
tc_version_is_at_least 10 && IUSE+=" zstd" TC_FEATURES+=( zstd )
tc_version_is_at_least 11 && IUSE+=" valgrind" TC_FEATURES+=( valgrind )
tc_version_is_at_least 11 && IUSE+=" custom-cflags"
+ tc_version_is_at_least 12.99 && IUSE+=" default-znow"
+ tc_version_is_at_least 12.99 && IUSE+=" default-stack-clash-protection"
fi
if tc_version_is_at_least 10; then
@@ -798,8 +800,18 @@ make_gcc_hard() {
if _tc_use_if_iuse ssp ; then
einfo "Updating gcc to use automatic SSP building ..."
fi
+ 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"
+ fi
+ if _tc_use_if_iuse default-znow ; then
+ # The define DEF_GENTOO_NZOW 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"
+ fi
if _tc_use_if_iuse hardened ; then
- # Will add some hardened options as default, like:
+ # Will add some hardened options as default, e.g. for gcc-12
# * -fstack-clash-protection
# * -z now
# See gcc *_all_extra-options.patch patches.