Hi Niels, On 16.10.2016 08:45, Niels Thykier wrote: > Do you know if upstream has re-evaluated this choice after gcc-5 fixed > one of the major performance issues with PIC on i386? > > Source: > https://software.intel.com/en-us/blogs/2014/12/26/new-optimizations-for-x86-in-upcoming-gcc-50-32bit-pic-mode
That's great! Thanks for sharing this information. However, in the case of ffmpeg the really performance critical part is optimized in hand-written assembler code, which for i386 contains text relocations. So the ffmpeg libraries will contain text relocations on i386 even when built with -fPIE/-fPIC (which will be the case in the next release, since pie was enabled upstream). By the way, do you happen to know what problems these text relocations cause from a security point of view? (I thought they were incompatible with NX, but that seems not to be the case [1].) Best regards, Andreas 1: https://ffmpeg.org/pipermail/ffmpeg-devel/2016-October/201103.html _______________________________________________ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-multimedia-maintainers
