Hi all, as I respinned few patches, dropped one and added another, I'm reposting this series thant enables return address verification and branch target identification based on Armv8.1-M Pointer Authentication and Branch Target Identification Extension [1] for Arm Cortex-M.
This feature is controlled by the newly introduced '-mbranch-protection' option, contextually the Armv8.1-M Mainline target feature '+pacbti' is added. Best Regards Andrea [1] <https://community.arm.com/developer/ip-products/processors/b/processors-ip-blog/posts/armv8-1-m-pointer-authentication-and-branch-target-identification-extension>
