[Bug breakpoints/13816] New: tracepoint set teval action got error

[teawater at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=13816

             Bug #: 13816
           Summary: tracepoint set teval action got error
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: critical
          Priority: P2
         Component: breakpoints
        AssignedTo: unassigned@sourceware.org
        ReportedBy: teawater@gmail.com
    Classification: Unclassified


GNU gdb (GDB) 7.4.50.20120306-cvs
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
(gdb) tvariable $a
Trace state variable $a created, with initial value 0.
(gdb) trace *0
Tracepoint 1 at 0x0
(gdb) actions 
Enter actions for tracepoint 1, one per line.
End with a line saying just "end".
>teval $a=1
Unsupported operator (null) (31788608) in expression.
(gdb)

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