[Bug ld/17742] ABI version 1 is not compatible with ABI version 0 output

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=17742

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ca0694adf6d128c2feba16f6374954c191fb5edb

commit ca0694adf6d128c2feba16f6374954c191fb5edb
Author: Alan Modra <address@hidden>
Date:   Wed Dec 24 22:07:42 2014 +1030

    Don't create .eh_frame_hdr on shared lib bfd

    If no object files have .eh_frame, but some shared library does, then
    ld creates a .eh_frame_hdr section using the shared library bfd.  This
    is silly since shared library .eh_frame sections don't contribute to
    the output .eh_frame and thus no .eh_frame_hdr is needed.

    Also, the bfd section list and count is cleared for shared libraries,
    and a zero section count used as a flag in lang_check to omit a call
    to bfd_merge_private_bfd_data for shared libraries.  If we create a
    section on a shared lib bfd then ld will wrongly attempt to merge the
    shared library private bfd data.

        PR 17742
        * ld/emultempl/elf32.em (gld${EMULATION_NAME}_after_open): Exclude
        shared libraries in loop looking for .eh_frame sections.
        Similarly for build-id loop.

-----------------------------------------------------------------------

Summary of changes:
 ld/ChangeLog          |    6 ++++++
 ld/emultempl/elf32.em |    5 ++++-
 2 files changed, 10 insertions(+), 1 deletions(-)

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