Re: [gentoo-hardened] NOTICE: GCC 4.3.4 going stable on Hardened

[Kakou <kakou@kakou.org>]

Le 24 oct. 2009 à 14:50, Ed W a écrit :

> Kakou wrote:
>> 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)
>
> Yes - actually I think it was the same on the gcc-3.4 profile also -  
> the hardened profile was just the short named option and the other  
> options are the ones which gradually work towards the "vanilla"  
> specs by disabling certain hardening features

Ok I was confused with the howto (http://www.gentoo.org/proj/en/hardened/toolchain-upgrade-guide.xml 
) :

Code Listing 2.5: Select hardened gcc

gcc-config -l
gcc-config <new gcc>-hardened
source /etc/profile
-----

Now I try to use the gcc 4.4 version on the git hardened-development  
and I have 2 questions :
- espf is included in this version but not in gcc 4.3 version that are  
present in the portage tree ?
- espf is like ssp protection ?


>
> Good luck
>
> Ed W
>