[Bug binutils/20595] excessive relocation for .ARM.exidx

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=20595

--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by Nick Clifton <address@hidden>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=5025eb7c0d87b01507116353b5d63b163d7add3d

commit 5025eb7c0d87b01507116353b5d63b163d7add3d
Author: Akihiko Odaki <address@hidden>
Date:   Fri Sep 23 16:32:04 2016 +0100

    Delete relocations associatesd with deleted exidx entries.

        PR ld/20595
    ld  * testsuite/ld-arm/unwind-4.d: Add -q option to linker command
        line and -r option to objdump command line.  Match emitted relocs
        to make sure that superflous relocs are not generated.

    bfd * elf-bfd.h (struct elf_backend_data): Add
        elf_backend_count_output_relocs callback to count relocations in
        the final output.
        * elf-arm.c (elf32_arm_add_relocation): Deleted.
        (elf32_arm_write_section): Move additional relocation to emit_relocs.
        (elf32_arm_count_output_relocs): New function.
        (emit_relocs): New function.
        (elf32_arm_emit_relocs): New function.
        (elf32_arm_vxworks_emit_relocs): New function.
        (elf_backend_emit_relocs): Updated to use the new functions.
        (elf_backend_count_output_relocs): New define.
        * bfd/elflink.c (bfd_elf_final_link): Do not add additional_reloc_count
        to the relocation count.
        (_bfd_elf_link_size_reloc_section): Use callback to count the
        relocations which will be in output.
        (_bfd_elf_default_count_output_relocs): New function.
        * bfd/elfxx-target.h (elf_backend_count_output_relocs): New define.

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