[Bug ld/22431] ld (binutils-2.29) segfaults when building Linux kernel (v4.14) on Fedora 26 ppc64le

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=22431

--- Comment #2 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by Alan Modra <address@hidden>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=06bcf5416feae129e239476ab1408e038bba171d

commit 06bcf5416feae129e239476ab1408e038bba171d
Author: Alan Modra <address@hidden>
Date:   Tue Nov 14 18:47:34 2017 +1030

    PR22431, powerpc64 ld segfault when .plt discarded

    The fix for the PR is to not use input_section->output_section->owner
    to get to the output bfd, but use the output bfd directly since it is
    available nowadays in struct bfd_link_info.

    I thought it worth warning when non-empty dynamic sections are
    discarded too, which meant a tweak to one of the ld tests to avoid the
    warning.

    bfd/
        PR 22431
        * elf64-ppc.c (ppc64_elf_size_dynamic_sections): Warn on discarding
        non-empty dynamic section.
        (ppc_build_one_stub): Take elf_gp from output bfd, not output
        section owner.
        (ppc_size_one_stub, ppc64_elf_next_toc_section): Likewise.
    ld/
        * testsuite/ld-elf/note-3.t: Don't discard .got.

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