================ @@ -681,7 +681,18 @@ DEFINE_LIBUNWIND_FUNCTION(__libunwind_Registers_arm64_jumpto) // context struct, because it is allocated on the stack, and an exception // could clobber the de-allocated portion of the stack after sp has been // restored. - ldr x16, [x0, #0x0F8] + + ldr x16, [x0, #0x0F8] // load sp into scratch + ldr lr, [x0, #0x100] // restore pc into lr + +#if __has_feature(ptrauth_calls) + // The LR is signed with its address inside the register state. Time + // to resign to be a regular ROP signed pointer + add x1, x0, #0x100 + autib lr, x1 + pacib lr, x16 // signed the scratch register for sp +#endif ---------------- atrosinenko wrote:
Likewise, we should probably use `autib1716` and `pacib1716` here to retain compatibility with Armv8.2-a. https://github.com/llvm/llvm-project/pull/143230 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
