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void-packages/common/environment/configure/hardening.sh

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2024-03-29 08:12:19 +01:00
# Enable as-needed by default.
LDFLAGS="-Wl,--as-needed ${LDFLAGS}"
if [ -z "$nopie" ]; then
# Our compilers use --enable-default-pie and --enable-default-ssp,
# but the bootstrap host compiler may not, force them.
if [ -z "$CHROOT_READY" ]; then
CFLAGS="-fstack-protector-strong -D_FORTIFY_SOURCE=2 ${CFLAGS}"
CXXFLAGS="-fstack-protector-strong -D_FORTIFY_SOURCE=2 ${CXXFLAGS}"
_GCCSPECSDIR=${XBPS_COMMONDIR}/environment/configure/gccspecs
case "$XBPS_TARGET_MACHINE" in
mips*) _GCCSPECSFILE="${_GCCSPECSDIR}/hardened-mips-cc1" ;;
*) _GCCSPECSFILE="${_GCCSPECSDIR}/hardened-cc1" ;;
esac
CFLAGS="-specs=${_GCCSPECSFILE} ${CFLAGS}"
CXXFLAGS="-specs=${_GCCSPECSFILE} ${CXXFLAGS}"
LDFLAGS="-specs=${_GCCSPECSDIR}/hardened-ld -Wl,-z,relro -Wl,-z,now ${LDFLAGS}"
else
# Enable FORITFY_SOURCE=2
CFLAGS="-fstack-clash-protection -D_FORTIFY_SOURCE=2 ${CFLAGS}"
CXXFLAGS="-fstack-clash-protection -D_FORTIFY_SOURCE=2 ${CXXFLAGS}"
FFLAGS="-fstack-clash-protection ${FFLAGS}"
LDFLAGS="-Wl,-z,relro -Wl,-z,now ${LDFLAGS}"
fi
else
CFLAGS="-fno-PIE ${CFLAGS}"
CXXFLAGS="-fno-PIE ${CXXFLAGS}"
FFLAGS="-fno-PIE ${FFLAGS}"
LDFLAGS="-no-pie ${LDFLAGS}"
fi