[Bug ld/16563] Corrupt .eh-frame section created when linking LTO and non-LTO objects

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https://sourceware.org/bugzilla/show_bug.cgi?id=16563

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=49727e46175419c638251b39091f24c575568bee

commit 49727e46175419c638251b39091f24c575568bee
Author: Alan Modra <address@hidden>
Date:   Mon Sep 22 17:53:15 2014 +0930

    Readelf: Handle forward references to CIEs

    The linker side of pr16563 was fixed with commit 18cd5bce, but
    unfortunately people continue to use older linkers with -flto.  This
    means we have binaries with working .eh_frame that can't be dumped by
    readelf, and I'm seeing internal IBM bug reports about this fact.

        PR 16563
        * dwarf.c (GET): Remove semicolon.
        (read_cie): New function, extracted from..
        (display_debug_frames): ..here.  Correctly handle signed offset
        from FDE to CIE in .eh_frame.  Decode forward referenced CIEs too.

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

Summary of changes:
 binutils/ChangeLog |    8 ++
 binutils/dwarf.c   |  241 +++++++++++++++++++++++++++++++++++-----------------
 2 files changed, 169 insertions(+), 80 deletions(-)

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