[Bug libc/11610] New: _fini does not have proper unwinding information on x86_64

["pasky at suse dot cz" <sourceware-bugzilla at sourceware dot org>]

It is impossible to reliably unwind the stack above _fini() on x86_64 since no
unwind information is provided for it and it modifies a stack register. This
matters for gdb backtracing - if a process crashes within a destructor, it can
frequently be essential to look at why the program began terminating in the
first place.

-- 
           Summary: _fini does not have proper unwinding information on
                    x86_64
           Product: glibc
           Version: 2.12
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: pasky at suse dot cz
                CC: glibc-bugs at sources dot redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=11610

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