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Re: [RFC, PATCH] aarch64: Add support for GNU indirect functions.
- From: Will Newton <will dot newton at linaro dot org>
- To: Nick Clifton <nick at nickclifton dot clara dot co dot uk>
- Cc: "binutils at sourceware dot org" <binutils at sourceware dot org>, Patch Tracking <patches at linaro dot org>
- Date: Fri, 7 Jun 2013 22:55:46 +0100
- Subject: Re: [RFC, PATCH] aarch64: Add support for GNU indirect functions.
- References: <519614BA dot 8000004 at linaro dot org> <CANu=DmgcsF2HpVELwda=xYcDYGJBD+tVOAdzMWsrriCbEBbRKA at mail dot gmail dot com> <51B1ED21 dot 8080606 at nickclifton dot clara dot co dot uk>
On 7 June 2013 15:24, Nick Clifton <nick@nickclifton.clara.co.uk> wrote:
> Hi Will,
>
>
>>> bfd/ChangeLog:
>>>
>>> 2013-05-17 Will Newton <will.newton@linaro.org>
>>>
>>> * configure.in: Build elf-ifunc.o for AArch64.
>>> * elf64-aarch64.c: Include objalloc.h.
>>> (elf64_aarch64_howto_dynrelocs): Add R_AARCH64_IRELATIVE howto.
>>> (struct elf64_aarch64_link_hash_table): Add members for handling
>>> R_AARCH64_IRELATIVE relocations.
>>> (elf_aarch64_local_htab_hash): New function.
>>> (elf_aarch64_local_htab_eq): New function.
>>> (elf_aarch64_get_local_sym_hash): New function.
>>> (elf64_aarch64_link_hash_table_create): Initialize local
>>> STT_GNU_IFUNC
>>> symbol hash.
>>> (elf64_aarch64_hash_table_free): Free local STT_GNU_IFUNC symbol
>>> hash.
>>> (elf64_aarch64_final_link_relocate): Add sym argument. Add
>>> support
>>> for handling STT_GNU_IFUNC symbols.
>>> (elf64_aarch64_gc_sweep_hook): Add support for garbage
>>> collecting
>>> references to STT_GNU_IFUNC symbols.
>>> (elf64_aarch64_adjust_dynamic_symbol): Add support for handling
>>> STT_GNU_IFUNC symbols.
>>> (elf64_aarch64_check_relocs): Add support for handling
>>> STT_GNU_IFUNC
>>> symbols. Ensure we don't increase plt.refcount from -1 to 0.
>>> (elf64_aarch64_post_process_headers): Call _bfd_elf_set_osabi.
>>> (elf64_aarch64_is_function_type): Remove function.
>>> (elf64_aarch64_allocate_dynrelocs): Call
>>> _bfd_elf_allocate_ifunc_dyn_relocs for STT_GNU_IFUNC symbols.
>>> (elf_aarch64_allocate_local_dynrelocs): New function.
>>> (elf64_aarch64_size_dynamic_sections): Call
>>> elf_aarch64_allocate_local_dynrelocs. Initialize
>>> next_irelative_index.
>>> (elf64_aarch64_create_small_pltn_entry): Add info argument.
>>> Add support for creating .iplt entries for STT_GNU_IFUNC
>>> symbols.
>>> (elf64_aarch64_finish_dynamic_symbol): Add support for handling
>>> STT_GNU_IFUNC symbols and .iplt.
>>> (elf_aarch64_finish_local_dynamic_symbol): New function.
>>> (elf64_aarch64_finish_dynamic_sections): Call
>>> elf_aarch64_finish_local_dynamic_symbol.
>>> (elf64_aarch64_add_symbol_hook): New function.
>>>
>>> include/elf/ChangeLog:
>>>
>>> 2013-05-17 Will Newton <will.newton@linaro.org>
>>>
>>> * aarch64.h: Add R_AARCH64_IRELATIVE reloc.
>>>
>>> ld/testsuite/ChangeLog:
>>>
>>> 2013-05-17 Will Newton <will.newton@linaro.org>
>>>
>>> * ld-ifunc/ifunc.exp: Enable ifunc tests for AArch64.
>>> * ld-aarch64/aarch64-elf.exp: Add ifunc tests.
>>> * ld-aarch64/ifunc-1-local.d: New file.
>>> * ld-aarch64/ifunc-1-local.s: Likewise.
>>> * ld-aarch64/ifunc-1.d: Likewise.
>>> * ld-aarch64/ifunc-1.s: Likewise.
>>> * ld-aarch64/ifunc-10.d: Likewise.
>>> * ld-aarch64/ifunc-10.s: Likewise.
>>> * ld-aarch64/ifunc-11.d: Likewise.
>>> * ld-aarch64/ifunc-11.s: Likewise.
>>> * ld-aarch64/ifunc-12.d: Likewise.
>>> * ld-aarch64/ifunc-12.s: Likewise.
>>> * ld-aarch64/ifunc-13.d: Likewise.
>>> * ld-aarch64/ifunc-13a.s: Likewise.
>>> * ld-aarch64/ifunc-13b.s: Likewise.
>>> * ld-aarch64/ifunc-14a.d: Likewise.
>>> * ld-aarch64/ifunc-14a.s: Likewise.
>>> * ld-aarch64/ifunc-14b.d: Likewise.
>>> * ld-aarch64/ifunc-14b.s: Likewise.
>>> * ld-aarch64/ifunc-14c.d: Likewise.
>>> * ld-aarch64/ifunc-14c.s: Likewise.
>>> * ld-aarch64/ifunc-14d.d: Likewise.
>>> * ld-aarch64/ifunc-14e.d: Likewise.
>>> * ld-aarch64/ifunc-14f.d: Likewise.
>>> * ld-aarch64/ifunc-15.d: Likewise.
>>> * ld-aarch64/ifunc-15.s: Likewise.
>>> * ld-aarch64/ifunc-16.d: Likewise.
>>> * ld-aarch64/ifunc-16.s: Likewise.
>>> * ld-aarch64/ifunc-17a.d: Likewise.
>>> * ld-aarch64/ifunc-17a.s: Likewise.
>>> * ld-aarch64/ifunc-17b.d: Likewise.
>>> * ld-aarch64/ifunc-17b.s: Likewise.
>>> * ld-aarch64/ifunc-18a.d: Likewise.
>>> * ld-aarch64/ifunc-18a.s: Likewise.
>>> * ld-aarch64/ifunc-18b.d: Likewise.
>>> * ld-aarch64/ifunc-18b.s: Likewise.
>>> * ld-aarch64/ifunc-19a.d: Likewise.
>>> * ld-aarch64/ifunc-19a.s: Likewise.
>>> * ld-aarch64/ifunc-19b.d: Likewise.
>>> * ld-aarch64/ifunc-19b.s: Likewise.
>>> * ld-aarch64/ifunc-2-local.d: Likewise.
>>> * ld-aarch64/ifunc-2-local.s: Likewise.
>>> * ld-aarch64/ifunc-2.d: Likewise.
>>> * ld-aarch64/ifunc-2.s: Likewise.
>>> * ld-aarch64/ifunc-20.d: Likewise.
>>> * ld-aarch64/ifunc-20.s: Likewise.
>>> * ld-aarch64/ifunc-3.s: Likewise.
>>> * ld-aarch64/ifunc-3a.d: Likewise.
>>> * ld-aarch64/ifunc-3b.d: Likewise.
>>> * ld-aarch64/ifunc-4.d: Likewise.
>>> * ld-aarch64/ifunc-4.s: Likewise.
>>> * ld-aarch64/ifunc-4a.d: Likewise.
>>> * ld-aarch64/ifunc-5-local.s: Likewise.
>>> * ld-aarch64/ifunc-5.s: Likewise.
>>> * ld-aarch64/ifunc-5a-local.d: Likewise.
>>> * ld-aarch64/ifunc-5a.d: Likewise.
>>> * ld-aarch64/ifunc-5b-local.d: Likewise.
>>> * ld-aarch64/ifunc-5b.d: Likewise.
>>> * ld-aarch64/ifunc-5r-local.d: Likewise.
>>> * ld-aarch64/ifunc-6.s: Likewise.
>>> * ld-aarch64/ifunc-6a.d: Likewise.
>>> * ld-aarch64/ifunc-6b.d: Likewise.
>>> * ld-aarch64/ifunc-7.s: Likewise.
>>> * ld-aarch64/ifunc-7a.d: Likewise.
>>> * ld-aarch64/ifunc-7b.d: Likewise.
>>> * ld-aarch64/ifunc-8.d: Likewise.
>>> * ld-aarch64/ifunc-8a.s: Likewise.
>>> * ld-aarch64/ifunc-8b.s: Likewise.
>>> * ld-aarch64/ifunc-9.d: Likewise.
>>> * ld-aarch64/ifunc-9.s: Likewise.
>
>
> Approved - please apply.
Thanks, applied.
--
Will Newton
Toolchain Working Group, Linaro