[Bug gdb/12866] gdb fail to load elf compiled by ARM RVCT3.1

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=12866

--- Comment #8 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
       via  b9502d3fd7848cd4d843be8bdc28633a3d24438d (commit)
      from  452a569eff947a21369d43cc7632c320e5b8a085 (commit)

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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=b9502d3fd7848cd4d843be8bdc28633a3d24438d

commit b9502d3fd7848cd4d843be8bdc28633a3d24438d
Author: Will Newton <will.newton@linaro.org>
Date:   Fri Nov 1 14:14:50 2013 -0700

    gdb/dwarf2read.c: Sanity check DW_AT_sibling values.

    When reading objects with corrupt debug information it is possible that
    the sibling chain can form a loop, which leads to an infinite loop and
    memory exhaustion.

    Avoid this situation by disregarding and DW_AT_sibling values that point
    to a lower address than the current entry.

    gdb/ChangeLog:

    2013-11-06  Will Newton  <will.newton@linaro.org>

        PR gdb/12866
        * dwarf2read.c (skip_one_die): Sanity check DW_AT_sibling
        values.  (read_partial_die): Likewise.

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

Summary of changes:
 gdb/ChangeLog    |    6 ++++++
 gdb/dwarf2read.c |   22 ++++++++++++++++++++--
 2 files changed, 26 insertions(+), 2 deletions(-)

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