[Bug debug/98776] DW_AT_low_pc is inconsistent with function entry address, when enabling -fpatchable-function-entry

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98776

--- Comment #11 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Sebastian Pop <spop@gcc.gnu.org>:

https://gcc.gnu.org/g:09c91caeb84e7c3609a12a53b57e5219a1dd2b15

commit r13-4561-g09c91caeb84e7c3609a12a53b57e5219a1dd2b15
Author: Sebastian Pop <spop@amazon.com>
Date:   Wed Nov 30 19:45:24 2022 +0000

    AArch64: Add UNSPECV_PATCHABLE_AREA [PR98776]

    Currently patchable area is at the wrong place on AArch64.  It is placed
    immediately after function label, before .cfi_startproc.  This patch
    adds UNSPECV_PATCHABLE_AREA for pseudo patchable area instruction and
    modifies aarch64_print_patchable_function_entry to avoid placing
    patchable area before .cfi_startproc.

    gcc/
            PR target/98776
            * config/aarch64/aarch64-protos.h (aarch64_output_patchable_area):
            Declared.
            * config/aarch64/aarch64.cc
(aarch64_print_patchable_function_entry):
            Emit an UNSPECV_PATCHABLE_AREA pseudo instruction.
            (aarch64_output_patchable_area): New.
            * config/aarch64/aarch64.md (UNSPECV_PATCHABLE_AREA): New.
            (patchable_area): Define.

    gcc/testsuite/
            PR target/98776
            * gcc.target/aarch64/pr98776.c: New.
            * gcc.target/aarch64/pr92424-2.c: Adjust pattern.
            * gcc.target/aarch64/pr92424-3.c: Adjust pattern.