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[Bug gdb/18021] Segfault in dwarf2_add_member_fn


https://sourceware.org/bugzilla/show_bug.cgi?id=18021

--- Comment #2 from Scott Pakin <scott+sware+bugzilla at pakin dot org> ---
Created attachment 8145
  --> https://sourceware.org/bugzilla/attachment.cgi?id=8145&action=edit
Problematic executable

Attached the x86-64 executable that's crashing gdb.  It's a build of NuT
(https://github.com/losalamos/NuT) instrumented with Byfl
(https://github.com/losalamos/Byfl).  I built the code with g++ v4.9 on Ubuntu
14.10 (Utopic Unicorn), and here are the program's dependencies:

$ ldd ./export/opt-3-export_x86_scalar/bin/bh-3
        linux-vdso.so.1 =>  (0x00007fffbdbfc000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fee2364c000)
        libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6
(0x00007fee2333c000)
        libatomic.so.1 => /usr/lib/x86_64-linux-gnu/libatomic.so.1
(0x00007fee23134000)
        libbfd-2.24.90-system.20141014.so =>
/usr/lib/libbfd-2.24.90-system.20141014.so (0x00007fee22dfc000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1
(0x00007fee22be4000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fee2281f000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fee2397f000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
(0x00007fee22601000)
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fee223e7000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fee221e3000)

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