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# Copyright 2000, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
# Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Test framework for GDB (remote protocol) using a "gdbserver",
# ie. a debug agent running as a native process on the same or
# a different host.

#
# This module to be used for testing gdb with a "gdbserver" 
# built either from libremote or from gdb/gdbserver.  
#

#
# To be addressed or set in your baseboard config file:
#
#   set_board_info gdb_protocol "remote"
#       Unles you have a gdbserver that uses a different protocol...
#
#   set_board_info use_gdb_stub 1
#       This tells the rest of the test suite not to do things
#       like "run" which don't work well on remote targets.
#
#   set_board_info gdb,do_reload_on_run 1
#       Unles you have a gdbserver that can handle multiple sessions.
#
#   set_board_info noargs 1
#       At present there is no provision in the remote protocol
#       for passing arguments.  This test framework does not
#       address the issue, so it's best to set this variable
#       in your baseboard configuration file.  
#       FIXME: there's no reason why the test harness couldn't
#       pass commandline args when it spawns gdbserver.
#
#   set_board_info gdb,noinferiorio 1
#       Neither the traditional gdbserver nor the one in libremote
#       can presently capture stdout and relay it to GDB via the
#       'O' packet.  This means that tests involving printf will
#       fail unles you set this varibale in your baseboard
#       configuration file.
#   
#   set_board_info gdb,no_hardware_watchpoints 1
#       Unles you have a gdbserver that supports hardware watchpoints.
#       FIXME: gdb should detect if the target doesn't support them,
#       and fall back to using software watchpoints.
#
#   set_board_info gdb_server_prog
#       This will be the path to the gdbserver program you want to test.
#       Defaults to "gdbserver".
#
#   set_board_info sockethost
#       The name of the host computer whose socket is being used.
#       Defaults to "localhost".  Note: old gdbserver requires 
#       that you define this, but libremote/gdbserver does not.
#
#   set_board_info gdb,socketport
#       Port id to use for socket connection.  If not set explicitly,
#       it will start at "2345" and increment for each use.
#

# The guts live in gdbserver-support.exp now.

load_lib gdbserver-support.exp

proc gdbserver_gdb_load { } {
    return [gdbserver_spawn ""]
}

proc gdb_reload { } {
    return [gdbserver_run ""]
}

proc gdb_reconnect { } {
    return [gdbserver_reconnect]
}