On 2016-10-24 05:56, Allan McRae wrote: *> 1) building gcc to enable PIE by default *> I am in the middle of rebuilding gcc with --enable-default-pie. When it finishes, I will start a todo for rebuilding packages with static libraries.
I also enabled --enable-default-ssp, which means that -fstack-protector-strong will be dropped from our CFLAGS (as it will be enforced by gcc) on the next opportunity.
Bartłomiej
Does the -enable-default-ssp enforce also -fstack-check=specific to protect from stack clash [1], gentoo do it (except on vlc and tcl which not build but those are upstream bugs) [2] [1] https://blog.qualys.com/securitylabs/2017/06/19/the-stack-clash [2] https://wiki.gentoo.org/wiki/Hardened/Gentoo_Hardened_and_Stack_Clash *Pablo Lezaeta*