Hello all,
I have updated my gcc 3.4 profile (with SELinux) to gcc 4.3 profile
(with a modified profile to support SELinux v2 policy).
After recompiling gcc+glibc, I obtain this :
gcc-config -l
[1] i686-pc-linux-gnu-4.3.4 *
[2] i686-pc-linux-gnu-4.3.4-hardenednopie
[3] i686-pc-linux-gnu-4.3.4-vanilla
[2] does not support support pie and I don't have a -hardened config.
So my question is : "[1] is the gcc hardened profile ?"
(when I test with paxtest, all is randomized)
Thanks,
Kakou
Le 14 oct. 2009 à 01:02, Gordon Malm a écrit :
Hello Hardened users, this is just a quick heads up. GCC 4.3.4 will
be going
stable on hardened profiles shortly. Unlike Hardened GCC 3.4.6,
this version
lacks default SSP building. However, FORTIFY_SOURCE=2
and -fno-strict-overflow are now enabled by default. Other Hardened
compiler
features (ex. default relro, bind now & pic/pie building) remain
enabled - no
change from 3.4.6.
It is regretable this must be done before GCC4 is SSP-by-default
enabled.
However, more and more packages require the newer GCC. The stable
GCC on
Hardened has been GCC 3.4.6 for a long time, but this has become an
untenable
situation. GCC4 SSP-by-default works and will be added in a later
revision -
some GCC4+SSP bugs in grub and glibc also remain to be fixed.
Please follow '2. General Upgrade Instructions' in the 'Gentoo GCC
Upgrade
Guide' [1] when upgrading from GCC 3.4.x to GCC 4.3.x. The upgrade
should be
relatively smooth, but if you run into upgrade troubles seek help
via this
mailing list, bugs.gentoo.org, or irc.freenode.net, #gentoo-hardened.
[1] http://www.gentoo.org/doc/en/gcc-upgrading.xml
Sincerely,
Gordon Malm (gengor)
