gdb and binutils branch master updated. ae6c7e33e1510665e8e043eb11a71e59414efbf3

[amodra@sourceware.org]

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ae6c7e33e1510665e8e043eb11a71e59414efbf3

commit ae6c7e33e1510665e8e043eb11a71e59414efbf3
Author: Alan Modra <amodra@gmail.com>
Date:   Fri Sep 12 09:35:42 2014 +0930

    Test for overflow in eh_frame_hdr entries and for overlapping FDEs
    
    With larger binaries on 64-bit systems, or indeed just binaries that
    have a large gap between text and data, it is possible for the
    .eh_frame_hdr lookup table entry values to overflow a signed 32-bit
    relative offset.  It is also a requirement for the glibc FDE lookup
    code that only one FDE claim to cover any given address.
    
    	* elf-bfd.h (struct eh_frame_array_ent): Add "range".
    	* elf-eh-frame.c (_bfd_elf_write_section_eh_frame): Stash address
    	range of FDEs to hdr_info->array.
    	(_bfd_elf_write_section_eh_frame_hdr): Report overflow in
    	.eh_frame_hdr entries, and overlapping FDEs.

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

Summary of changes:
 bfd/ChangeLog      |    8 ++++++++
 bfd/elf-bfd.h      |    1 +
 bfd/elf-eh-frame.c |   51 +++++++++++++++++++++++++++++++++++++++++----------
 3 files changed, 50 insertions(+), 10 deletions(-)


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