On 11.12.2024 03:04, Volodymyr Babchuk wrote: > Both GCC and Clang support -fstack-protector feature, which add stack > canaries to functions where stack corruption is possible. This series > makes possible to use this feature in Xen. I tested this on ARM64 and > it is working as intended. Tested both with GCC and Clang. > > It is hard to enable this feature on x86, as GCC stores stack canary > in %fs:40 by default, but Xen can't use %fs for various reasons. It is > possibly to change stack canary location new newer GCC versions, but > this will change minimal GCC requirement, which is also hard due to > various reasons. So, this series focus mostly on ARM and RISCV.
Why exactly would it not be possible to offer the feature when new enough gcc is in use? Jan
