Backport of control flow integrity from clang ore something else.
Hi Is there any plans to port the control flow integrity from clang[1] or use something that don't need any hardware support as CET[2]. There is allready part of it in gcc to support the CET so would it be posseble to write a software version of it? The best would be to make something like RAP[3] but it is patent-pending or some thing like that. /Magnus [1] https://clang.llvm.org/docs/ControlFlowIntegrity.html [2] https://software.intel.com/sites/default/files/managed/4d/2a/control-flow-enforcement-technology-preview.pdf [3] https://grsecurity.net/rap_faq.php
Re: trampolines handling, important copyright question
lördag 29 maj 2010 15.45.09 skrev Marc Espie: > So, I used to contribute back to gcc regularly, got overwhelmed by > other stuff, but I'm back. > > Case in point: I've added stuff to OpenBSD for secure handling of > trampolines. Since trampolines require an executable stack, we want to > make sure we don't have trampolines all over the place, hence a > -ftrampolines options, and a -Wtrampolines option. > Patch for -Wtrampolines option is allredy posted on the gcc-patch ml http://gcc.gnu.org/ml/gcc-patches/2010-05/msg00352.html Doing some rework on the patch. Hardened at gentoo.org Magnus Granberg (Zorry)
