Re: [PATCH 11/12] aarch64: Make bti pass generic so it can be used by the arm backend

[Richard Earnshaw via Gcc-patches]

On 28/04/2022 10:51, Andrea Corallo via Gcc-patches wrote:
Hi all,

this patch splits and restructures the aarch64 bti pass code in order
to have it usable by the arm backend as well.  These changes have no
functional impact.

Best Regards

   Andrea

gcc/Changelog

        * config.gcc (aarch64*-*-*): Rename 'aarch64-bti-insert.o' into
        'aarch-bti-insert.o'.
        * config/aarch64/aarch64-protos.h: Remove 'aarch64_bti_enabled'
        proto.
        * config/aarch64/aarch64.cc (aarch_bti_enabled): Rename.
        (aarch_bti_j_insn_p, aarch_pac_insn_p): New functions.
        (aarch64_output_mi_thunk)
        (aarch64_print_patchable_function_entry)
        (aarch64_file_end_indicate_exec_stack): Update renamed function
        calls to renamed functions.
        * config/aarch64/t-aarch64 (aarch-bti-insert.o): Update target.
        * config/arm/aarch-bti-insert.cc: New file including and
        generalizing code from aarch64-bti-insert.cc.
        * config/arm/aarch-common-protos.h: Update.
        * config/arm/arm-passes.def: New file.


Is this patch fully stand-alone?  It adds arm-passes.def, which adds a 
reference to pass_insert_bti, but that isn't fully wired up until the 
next patch.

R.