[Bug python/12929] New: Incorrect behavior with async mode

["kevin.pouget at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=12929

           Summary: Incorrect behavior with async mode
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: python
        AssignedTo: unassigned@sourceware.org
        ReportedBy: kevin.pouget@gmail.com


In asynchronous mode, commands executed from Python don't behave correctly:

(gdb) set target-async on
(gdb) py gdb.execute("attach PID") ; gdb.execute("where")
#0  0x0000003cbd0aa47e in ?? ()
#1  0x0000000000000000 in ?? ()
0x0000003cbd0aa47e in waitpid () from /lib64/libc.so.6

where as the behavior should be the same as synchronous mode:

(gdb) set target-async off
(gdb) py gdb.execute("attach PID") ; gdb.execute("where")
0x0000003cbd0aa47e in waitpid () from /lib64/libc.so.6
#0  0x0000003cbd0aa47e in waitpid () from /lib64/libc.so.6
#1  0x000000000043ede2 in ?? ()
#2  0x000000000044005f in wait_for ()
#3  0x0000000000430c45 in execute_command_internal ()
#4  0x0000000000430e0e in execute_command ()
#5  0x000000000041d526 in reader_loop ()
#6  0x000000000041ccde in main ()

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