gdb/testsuite/config/gdbserver.exp

   1 # Test Framework Driver for GDB using the extended gdb remote protocol
   2 #   Copyright 1995, 1997 Free Software Foundation, Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17 #
  18 # For this to function correctly, you need to set a number of variables
  19 # in your gdb/site.exp file
  20 #
  21 #       set noargs 1            -- we can't pass arguments (yet)
  22 #       set noinferiorio 1      -- we can't get io to/from the inferior
  23 #       set targethost <host>   -- name of the remote system (runs gdbserver)
  24 #       set debughost <host>    -- name of the system running gdb
  25 #       set port <number>       -- starting port number for communication
  26 #       set gdbserver <path>    -- path (on the remote side) to find
  27 #                                  gdbserver
  28 #       set rsh <path>          -- path (on debughost side) to rsh
  29 #       set rcp <path>          -- path (on debughost side) to rcp
  30 #
  31 # You will need to be able to spawn processes from gdbhost to run on
  32 # targethost via rsh (this is how we start gdbserver); similarly
  33 # you need to be able to rcp files from gdbhost to targethost.
  34 #
  35 # We don't do much error checking, if something goes wrong, you'll probably
  36 # just get a tcl error and everything will die.  FIXME
  37 #
  38
  39 # Load the basic gdb testing library
  40 load_lib gdb.exp
  41 load_lib monitor.exp
  42
  43 #
  44 # gdb_load -- load a file into the debugger.
  45 #             return a -1 if anything goes wrong.
  46 #
  47 # Loading a file in the gdbsrever framework is a little strange in that
  48 # we also create the inferior (which is stopped at the first instruction
  49 # in the program when we get control).
  50 #
  51 proc gdb_load { arg } {
  52     global verbose
  53     global loadpath
  54     global loadfile
  55     global GDB
  56     global gdb_prompt
  57     global debughost
  58     global port
  59
  60     # bump the port number to avoid conflicts with hung ports
  61     set targethost [target_info gdb_server_host];
  62     set debughost [target_info gdb_debug_host];
  63     if [target_info exists gdb_server_prog] {
  64         set gdbserver [target_info gdb_server_prog];
  65     } else {
  66         set gdbserver "gdbserver";
  67     }
  68     incr port
  69     set serialport $targethost:$port
  70
  71     # Copy the file down to the remote host.
  72     set file [remote_download host $arg];
  73
  74     # now start gdbserver on the remote side
  75     remote_spawn host "$gdbserver $debughost:$port $file >& /dev/null < /dev/null"
  76
  77     # give it plenty of time to get going (lynx)
  78     sleep 30
  79
  80     # tell gdb we are remote debugging
  81     if [gdb_target_monitor $arg] {
  82         return -1;
  83     }
  84
  85     return 1
  86 }
  87
  88 #
  89 # gdb_start -- start GDB running.
  90 #
  91 proc gdb_start { } {
  92     global gdb_prompt
  93
  94     # do the usual stuff
  95     catch default_gdb_start
  96
  97     # FIXME: This shouldn't be necessary, but lots of PA tests fail
  98     # without it.
  99     send "set remotecache 0\n"
 100     expect {
 101         -re "set remotecache 0\[\r\n\]+.*$gdb_prompt $" {}
 102         default { fail "gdb_start"}
 103     }
 104 }