================ @@ -151,9 +157,12 @@ Usage To enable ShadowCallStack, just pass the ``-fsanitize=shadow-call-stack`` flag to both compile and link command lines. On aarch64, you also need to pass -``-ffixed-x18`` unless your target already reserves ``x18``. On RISC-V, ``x3`` -(``gp``) is always reserved. It is, however, important to disable GP relaxation -in the linker. This can be done with the ``--no-relax-gp`` flag in GNU ld. +``-ffixed-x18`` unless your target already reserves ``x18``. No additional flags +need to be passed on RISC-V because the software based shadow stack uses ``x3`` (``gp``), +which is always reserved, and the hardware based shadow call stack uses a dedicated register, ``ssp``. ---------------- yetingk wrote:
Done. https://github.com/llvm/llvm-project/pull/68075 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
