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)
>