[Bug general/5886] New: frysk.stack.ErrorFrame class

["cagney at redhat dot com" <sourceware-bugzilla at sourceware dot org>]

If the unwind attempt fails with an error then an ErrorFrame class would be used
to terminate the stack chain (with frame id == 0).

This way, a back-trace could contain an additional error frame vis:

   (fhpd) where
   #0 foo
   #1 bar
   #2 <<error: invalid memory address at 0>>
   (fhpd)

making it easier to differentiate between a bad back-trace and a properly
terminated stack.  In addition, if the user should want, they can even examine
that frame.

-- 
           Summary: frysk.stack.ErrorFrame class
           Product: frysk
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: frysk-bugzilla at sourceware dot org
        ReportedBy: cagney at redhat dot com
                CC: mwielaard at redhat dot com
OtherBugsDependingO 5876
             nThis:


http://sourceware.org/bugzilla/show_bug.cgi?id=5886

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