module to open and communicate with a gdb session

 The Devel::GDB package provides an interface for communicating
 with GDB. Internally, it uses the GDB/MI interpreter
 (see http://sourceware.org/gdb/current/onlinedocs/gdb_25.html),
 which accurately informs the caller of the program state and,
 through the use of tokens, guarantees that the results returned
 actually correspond to the request sent.
 By contrast, GDB's console interpreter returns all responses on
 STDOUT, and thus there is no way to ensure that a particular response
 corresponds to a particular request.
 .
 Therefore, it is obviously preferable to use GDB/MI when programmatically
 interacting with GDB. This can be done via the send_cmd family of functions
 (send_cmd, send_cmd_excl, and send_cmd_async). There are, however,
 some cases when there is no GDB/MI command corresponding to a particular
 console command, or it has not yet been implemented (for example, -symbol-type,
 corresponding to the console command ptype, is not yet implemented as of GDB
 6.6). In this case, the get function provides a workaround by capturing all
 output sent to the console stream.