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d19844
2016 May 31
0
[RFC] Using segmentation to harden SafeStack
...).
I submitted patches to enable SafeStack for single-threaded Contiki OS on X86 (https://github.com/contiki-os/contiki/pull/1642). This required adding support for storing the unsafe stack pointer in a regular global variable on Contiki OS (http://reviews.llvm.org/D19852, http://reviews.llvm.org/D19854). This is a foundation for another patch that I have prepared (but not yet submitted) to enable segmentation-hardened SafeStack for Contiki OS. Those patches use different bases for DS/ES vs. SS, demonstrating that these LLVM patches can support such memory models.
Comments appreciated.
Thanks,...