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[Bug ld/17467] .eh_frame_hdr table overlaps


From: cvs-commit at gcc dot gnu.org
Subject: [Bug ld/17467] .eh_frame_hdr table overlaps
Date: Mon, 13 Oct 2014 12:30:10 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=17467

--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
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This is an automated email from the git hooks/post-receive script. It was
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The branch, master has been updated
       via  5b69e3572d1ee8e8e6e1991fd07f87a96c48746d (commit)
      from  c780cc2f5062451a568458b6ef9b8aef7cc1dd8a (commit)

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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=5b69e3572d1ee8e8e6e1991fd07f87a96c48746d

commit 5b69e3572d1ee8e8e6e1991fd07f87a96c48746d
Author: Alan Modra <address@hidden>
Date:   Mon Oct 13 15:18:21 2014 +1030

    Run eh_frame optimisation for relocatable link

    The idea here is to drop .eh_frame FDEs corresponding to dropped
    comdat group sections or linkonce sections, but not perform changes in
    encoding.

    bfd/
        PR 17467
        * elf-eh-frame.c (ENSURE_NO_RELOCS): Don't stop at first NONE reloc.
        (_bfd_elf_parse_eh_frame): When relocatable output, don't set
        flags enabling conversion of CIEs and FDEs to use relative encoding.
        (find_merged_cie): Similarly.
        (_bfd_elf_write_section_eh_frame): Don't edit FDEs when
        relocatable, except for CIE pointer.
        * elflink.c (bfd_elf_reloc_symbol_deleted_p): Return true for
        relocs against symbols in dropped comdat group sections.
        (bfd_elf_discard_info): Do some eh_frame optimisation when
        relocatable.
    ld/
        * ldlang.c (lang_add_section): Set up map_head.s and map_tail.s when
        relocatable.

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

Summary of changes:
 bfd/ChangeLog      |   14 ++++++++++++++
 bfd/elf-eh-frame.c |   25 +++++++++++++++++--------
 bfd/elflink.c      |   14 +++++++-------
 ld/ChangeLog       |    5 +++++
 ld/ldlang.c        |    3 +--
 5 files changed, 44 insertions(+), 17 deletions(-)

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