[Bug ld/32572] -z force-bti + -Ttext-segment produce wrong PLT entries on aarch64

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=32572

--- Comment #7 from Sourceware Commits <cvs-commit at gcc dot gnu.org> ---
The binutils-2_44-branch branch has been updated by Richard Earnshaw
<rearnsha@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a4e996833fe5d770a9efc95d35567b51025cf23f

commit a4e996833fe5d770a9efc95d35567b51025cf23f
Author: Richard Earnshaw <rearnsha@arm.com>
Date:   Thu Jan 23 10:53:54 2025 +0000

    aarch64: Fix PLT fixups when BTI is used [PR32572]

    PR ld/32572

    There are two problems addressed in this PR.  Firstly, the choice of
    whether or not a PLT stub needs a BTI on entry was too strict,
    resulting in non-pie executables not having a BTI on their stub.  But
    secondly, the logic to handle each stub types did not agree across the
    various places where this information is used.

    The first issue is fixed by using bfd_link_executable rather than
    bfd_link_pde.  The second is addressed by recording a delta for PLT
    stub alongside the stub itself.  This is then used without needing
    additional logic later on since it has been pre-calculated.

    A more comprehensive fix would involve creating a data structure to
    describe each fixup, including a call-back function to apply any
    relocations.  But that's a fairly large change and not appropriate for
    backporting.

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