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#   Copyright 1988, 1990, 1991, 1992, 1995, 1997, 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 .

# This file was written by Rob Savoye. (rob@cygnus.com)

#

# load support libraries

#

load_lib remote.exp

load_lib gdb.exp

set shell_prompt "->"

set gdb_prompt "\\(vxgdb\\)"

#

# gdb_version -- extract and print the version number of gcc

#

proc gdb_version {} {

    default_gdb_version

}

#

# gdb_load -- load a file into the debugger.

# We have to stop and start gdb each time we do this, because when

# vxgdb loads two files in a row, the symbols in the first file loaded

# take precedence. Returns -1 on error, else 0.

#

proc gdb_load { arg } {

    set result 0

    if { [remote_ld target $arg] != 0 } {

        perror "Couldn't load $arg"

        return -1

    }

    return [gdb_file_cmd $arg]

}

#

# gdb_start -- start gdb running

#

proc gdb_start { } {

    global gdb_prompt

    global verbose

    global connectmode

    global reboot

    # get a connection to the board

    for { set x 0; } { $x < 3 } { incr x } {

        set shell_id [remote_open target]

        if { $shell_id > 0 } {

            verbose "Spawn id for remote shell is $shell_id"

            set timeout 10

            verbose "Timeout is now $timeout seconds" 2

            set state [spawn_vxgdb];

            if { $state == "pass" } {

                return 0;

            }

            if { $state == "fail" } {

                return -1;

            }

        }

        remote_reboot target;

    }

}

proc spawn_vxgdb { } {

    global gdb_prompt

    default_gdb_start

    # set the default arguments to "main", so that "run" with no

    # arguments will work correctly.

    send_gdb "set args main\n"

    gdb_expect -re ".*$gdb_prompt $" {}

    verbose "Setting up target, Please wait..."

    # set targets hostname

    send_gdb "target vxworks [target_info hostname]\n"

    set timeout 60

    verbose "Timeout is now $timeout seconds" 2

    gdb_expect {

        -re "Done\..*$gdb_prompt $"     {

            verbose "Set target to [target_info hostname]" 1

            set timeout 10;

            return "pass";

        }

        -re "net_connect: RPC: (Program not registered|.*Timed out).*$" {

            warning "Couldn't set GDB to target [target_info netport]."

        }

        timeout {

            warning "Couldn't set target for vxworks."

        }

    }

    return "retry";

}

proc gdb_exit { } {

    remote_close target;

    catch default_gdb_exit

}

#expect_after {

#    ""            { send "\n"; perror "Window too small." }

#    -re "\(y or n\) "     { send "n\n"; perror "Got interactive prompt." }

#    buffer_full                   { perror "internal buffer is full." }

#    eof                           { perror "eof -- pty is hosed." }

#    timeout                       { perror "timeout." }

#    "virtual memory exhausted" { perror "virtual memory exhausted." }

#    "Undefined command"           { perror "send string probably wrong." }

#}