NAME

Devel::GDB::LowLevel - Low-level interface for communicating with GDB

DESCRIPTION

This module is used internally by Devel::GDB. It handles the low-level I/O of communicating with the GDB process.

CONSTRUCTOR

new

Spawns a GDB process. Because this class only facilitates communication with GDB (not with the inferior process being debugged), you have to decide what to do with the STDIN, STDOUT, and STDERR of that process. There are a few options available:

• If STDIN is a tty, we can have the inferior process communicate directly with the controlling tty (emulating the default behavior of gdb):

  
              
  
                
                
  $gdb = new Devel::GDB::LowLevel( '-execfile' => $path_to_gdb,
                                   '-params'   => $extra_gdb_params );
              
            

• Or, we can create an Expect object to communicate with the inferior process:

  
              
  
                
                
  $gdb = new Devel::GDB::LowLevel( '-create-expect' => 1 );
  $expect = $gdb->get_expect_obj();
              
            

• Or, we can create our own tty and use that:

  
              
  
                
                
  $gdb = new Devel::GDB::LowLevel( '-use-tty' => '/dev/pts/123' );
              
            

METHODS

send

Sends a raw line of text to GDB. This should not contain any newlines (they will be stripped). This method only sends a request, and does not wait for a response.

get_reader

Returns the file handle from which to read GDB responses.

get_expect_obj

Returns the Expect object created in the constructor. Dies if '-create-expect' was not passed to new.

interrupt

Send SIGINT to the GDB session, interrupting the inferior process (if any).

SEE ALSO

IPC::Open2

AUTHORS

Antal Novak <afn@cpan.org>, Josef Ezra <jezra@cpan.org>

COPYRIGHT AND LICENSE

Copyright (C) 2007 by Antal Novak & Josef Ezra

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or, at your option, any later version of Perl 5 you may have available.