[Bug binutils/23919] bfd doesn't handle ELF compressed data alignment

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=23919

--- Comment #16 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The gdb-8.2-branch branch has been updated by Pedro Alves
<palves@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6d33d996167a33552b68c036f1b1571a208ace42

commit 6d33d996167a33552b68c036f1b1571a208ace42
Author: Nick Clifton <nickc@redhat.com>
Date:   Tue Feb 26 19:57:46 2019 +0000

    Import patch to fix PR23919 from the mainline.

        PR binutils/23919
    bfd * bfd.c (bfd_update_compression_header): Explicitly set alignment.
        (bfd_check_compression_header): Add uncompressed_alignment_power
        argument. Check ch_addralign is a power of 2.
        * bfd-in2.h: Regenerated.
        * compress.c (bfd_compress_section_contents): Get and set
        orig_uncompressed_alignment_pow if section is decompressed.
        (bfd_is_section_compressed_with_header): Add and get
        uncompressed_align_pow_p argument.
        (bfd_is_section_compressed): Add uncompressed_align_power argument
        to bfd_is_section_compressed_with_header call.
        (bfd_init_section_decompress_status): Get and set
        uncompressed_alignment_power.
        * elf.c (_bfd_elf_make_section_from_shdr): Add
        uncompressed_align_power argument to
        bfd_is_section_compressed_with_header call.

        * compress.c (bfd_is_section_compressed_with_header): Initialize
        * uncompressed_align_pow_p to 0.

    binutils* readelf.c (dump_sections_as_strings): Remove bogus addralign
check.
        (dump_sections_as_bytes): Likewise.
        (load_specific_debug_sections): Likewise.
        * testsuite/binutils-all/dw2-3.rS: Adjust alignment.
        * testsuite/binutils-all/dw2-3.rt: Likewise.

    gold        * merge.cc
(Output_merge_string<Char_type>::do_add_input_section):
        Get addralign from decompressed_section_contents.
        * object.cc (build_compressed_section_map): Set info.addralign.
        (Object::decompressed_section_contents): Add a palign
        argument and store p->second.addralign in *palign if it isn't
        NULL.
        * object.h (Compressed_section_info): Add addralign.
        (section_is_compressed): Add a palign argument, default it
        to NULL, store p->second.addralign in *palign if it isn't NULL.
        (Object::decompressed_section_contents): Likewise.
        * output.cc (Output_section::add_input_section): Get addralign
        from section_is_compressed.

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