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#!/bin/bash

# Copyright (C) 2010 Embecosm Limited

# Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
# Contributor Joern Rennecke <joern.rennecke@embecosm.com>

# This file is a board description for testing OpenRISC with uClibc and
# Or1ksim running Linux.

# 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/>.          

# This is a list of toolchains that are supported on this board.
set_board_info target_install {or32-linux}

# No multilib options needed by default.
process_multilib_options ""

# Load the generic configuration for this board. This will define a basic set
# of routines needed by the tool to communicate with the board.
load_generic_config "unix"

# Set up remote target info
set_board_info hostname "192.168.0.3"
set_board_info username root

# Use the installed compilers to ensure we get search paths that will find
# uClibc.
send_user "set_board_info compiler /opt/or32-new/bin/or32-linux-gcc\n"
global GCC_UNDER_TEST
set GCC_UNDER_TEST "/opt/or32-new/bin/or32-linux-gcc"
set_board_info compiler /opt/or32-new/bin/or32-linux-gcc
set_board_info c++compiler /opt/or32-new/bin/or32-linux-g++

set_board_info connect telnet
set_board_info shell_prompt    "~ # "
set_board_info telnet_username "root"
set_board_info telnet_password ""

set_board_info file_transfer ftp
set_board_info ftp_username  root
set_board_info ftp_password  ""

# Custom proc to close a telnet session
proc telnet_close {boardname} {
    set spawn_id [board_info $boardname fileid]
    verbose "Closing $boardname:$spawn_id"

    if { $spawn_id >= 0 } {
        catch {close -i $spawn_id}
        catch wait
        set spawn_id -1

        set board_info($boardname,fileid) $spawn_id
    }
}


# Custom proc to exec programs using telnet
proc telnet_exec {boardname cmd args} {
    global timeout
    global verbose
    set output "(no output)"

    verbose "Executing $boardname:$cmd $args"

    if { [llength $args] > 0 } {
        set pargs [lindex $args 0];
    } else {
        set pargs ""
    }

    if [board_info $boardname exists shell_prompt] {
        set shell_prompt [board_info $boardname shell_prompt]
    }
    if ![info exists shell_prompt] { # if no prompt, then set it to
        something generic
        set shell_prompt ".*> "
    }

    #Start a new telnet session if one dosen't already exist
    if ![board_info $boardname exists fileid] {
        if {[telnet_open $boardname] == -1} {
            return [list -1
                    "telnet to $boardname failed for $cmd, couldn't begin
telnet session"]
        }
    }

    set spawn_id [board_info $boardname fileid]
    set timeout 30

    #Hit enter to make sure you get a shell prompt
    send -- "\r"

    expect {
        -re "$shell_prompt.*$" {
            verbose "Got a prompt"
        }
        default {
            telnet_close $boardname
            if {[telnet_open $boardname] != -1} {
                verbose "started new telnet session, spawn_id is [board_info
$boardname fileid]"
                send -- "\r"
                exp_continue
            } else {
                return [list -1 "telnet to $boardname failed for $cmd, couldn't get
a shell prompt"]
            }
            send -- "\r"
            exp_continue
        }
    }
    set timeout 10
    send "$cmd $pargs\r"

    expect {
        -re "$shell_prompt.*$" {
        }
        timeout {
            if [info exists expect_out(buffer)] {
                set execute_output_string $expect_out(buffer)
            }
            telnet_close $boardname
            return "fail timeout"
        }
    }
    #Remove unesesary strings from the output string
    #
    #If the file path contains any "+" signs, it will mess things up when $cmd
    #is used as a regsub pattern (2 lines down), so we replace all "+"s with "."
    regsub -all "\\+" $cmd "." cmd
    regsub -all $cmd "$expect_out(buffer)" {} output
    regsub $shell_prompt $output {} output
    regsub -all "\[\r\n\]" $output {} output

    #Check the return status
    set timeout 30
    send -- "echo \$?\r"
    expect -re "$shell_prompt.*$"

    #Regsub the output to get the status number
    regsub -all {echo \$\?} $expect_out(buffer) {} status
    regsub $shell_prompt $status {} status
    regsub -all "\[\r\n \]" $status {} status

    #This probably isn't neccessary..
    if {[regexp {[0123456789]+} $status] != 1} {
        warning "status not a number, it is <$status>, setting it to 1"
        set status 1
    }

    if {$status == 0} {
        return [list "0" "$output"]
    } else {
        return [list "1" "$output"]
    }
}

# Options for the simulator
# set cfg_file [lookfor_file ${srcdir} libgloss/or32/sim.cfg]
# set_board_info sim,options "-a \"-f ${cfg_file}\""

# We only support uClibc on this target.  We assume that all multilib options
# have been specified before we get here.
# set_board_info compiler  "[find_gcc]"

# No linker script needed.
set_board_info ldscript ""

# This simulator isn't slow.
set_board_info slow_simulator 0

# Can't pass arguments to programs on this target..
set_board_info noargs  1

# Used by a few gcc.c-torture testcases to delimit how large the stack can
# be.
set_board_info gcc,stack_size 65536

# GDB options

# We can't do input in GDB (yet! HA!). It *will* do output, hurrah.
set_board_info gdb,noinferiorio 1
# Or pass arguments.
set_board_info gdb,noargs  1
set_board_info noargs 1
# And there's no support for signals.
set_board_info gdb,nosignals  1