Hi GCC 4.4.4-r2 is now stable in the hardened profiles (on x86 and amd64 as of 2010-10-24, other architectures will follow later). Starting from this version, SSP support is enabled by default for the architectures it is supported on (namely x86, amd64, ppc, ppc64 and arm). Previously, GCC 4.3.4 had SSP support but it was not enabled by default.
Older GCC versions in the hardened profiles, such as the GCC 3.x series will be obsoleted, problems arising on those versions, but not applying to GCC 4.4.4-r2 will not be fixed, so please update to the new version. Hardened at Gentoo.org Magnus Granberg (Zorry)