[Bug symtab/16581] GDB crash on inherit_abstract_dies infinite recursion

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

http://sourceware.org/bugzilla/show_bug.cgi?id=16581

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https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=adde2bff0757e89175ede493f03b86953d0d9352

commit adde2bff0757e89175ede493f03b86953d0d9352
Author: Doug Evans <xdje42@gmail.com>
Date:   Thu Feb 20 09:13:53 2014 -0800

    Fix PR symtab/16581

        * dwarf2read.c (struct die_info): New member in_process.
        (reset_die_in_process): New function.
        (process_die): Set it at the start, reset when returning.
        (inherit_abstract_dies): Only call process_die if origin_child_die
        not already being processed.

        testsuite/
        * gdb.dwarf2/dw2-icycle.S: New file.
        * gdb.dwarf2/dw2-icycle.c: New file.
        * gdb.dwarf2/dw2-icycle.exp: New file.

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

Summary of changes:
 gdb/ChangeLog                                     |   11 +
 gdb/dwarf2read.c                                  |   30 +++-
 gdb/testsuite/ChangeLog                           |    9 +
 gdb/testsuite/gdb.dwarf2/dw2-icycle.S             |  258 +++++++++++++++++++++
 gdb/testsuite/gdb.dwarf2/{main.c => dw2-icycle.c} |    0
 gdb/testsuite/gdb.dwarf2/dw2-icycle.exp           |   46 ++++
 6 files changed, 352 insertions(+), 2 deletions(-)
 create mode 100644 gdb/testsuite/gdb.dwarf2/dw2-icycle.S
 copy gdb/testsuite/gdb.dwarf2/{main.c => dw2-icycle.c} (100%)
 create mode 100644 gdb/testsuite/gdb.dwarf2/dw2-icycle.exp

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