Subversion Repositories openrisc_2011-10-31

#!/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/>.          

# -----------------------------------------------------------------------------
# For telnet targets we need to define some functions.

# -----------------------------------------------------------------------------
# Custom proc to close a telnet session

# @param[in] boardname  The board being closed.
# -----------------------------------------------------------------------------
proc telnet_close {hostname} {

    # Get the connected host name, if it exists (actually, we think this can
    # never be set, but it is for consistency with telnet_open
    if {[board_info $hostname exists name]} {
        set connhost [board_info $hostname name]
    } else {
        set connhost $hostname
    }

    # Use the standard close proc from remote.exp
    standard_close $hostname
}


# -----------------------------------------------------------------------------
# Custom proc to exec programs using telnet

# We seem to only pass in the first of the arguments supplied to the command.

# We seem to set the timeout to 30, no matter what. Not sure that is right
# here.

# @param[in] hostname  The board we are telnetting to
# @param[in] cmd        The command to run
# @param[in] args       Arguments to the command

# @return  A list of the return code (-1 on failure) and any error message.
# -----------------------------------------------------------------------------
proc telnet_exec {hostname cmd args} {
    global timeout
    global verbose
    set output "(no output)"

    verbose "Executing $hostname $cmd $args"

    # Get the first argument, if any.
    if { [llength $args] > 0 } {
        set pargs [lindex $args 0];
    } else {
        set pargs ""
    }

    # Set the shell prompt
    if [board_info $hostname exists shell_prompt] {
        set shell_prompt [board_info $hostname 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 doesn't already exist. If sucessful
    # the fileid field associated with $hostname will be set to the spawn_id
    # of the new telnet process.
    if ![board_info $hostname exists fileid] {
        if {[telnet_open $hostname] == -1} {
            return [list -1
                    "telnet to $hostname failed for $cmd, couldn't begin telnet session"]
        }
    }

    # Make the telnet session the current process.
    set spawn_id [board_info $hostname fileid]
    set old_timeout $timeout
    set timeout 30

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

    expect {
        # A prompt indicates the current session is alive
        -re "$shell_prompt.*$" {
            verbose "Got a prompt"
        }
        default {
            # No response try closing the connection and reopening.
            telnet_close $hostname
            if {[telnet_open $hostname] != -1} {
                verbose "started new telnet session, spawn_id is [board_info
$hostname fileid]"
                send -- "\r"
                exp_continue
            } else {
                set timeout $old_timeout
                return [list -1 "telnet to $hostname failed for $cmd, couldn't get
a shell prompt"]
            }
            # I don't think we can get here. Comment out the old code and
            # trigger an error
            # send -- "\r"
            # exp_continue
            set timeout $old_timeout
            error "Problem reconnecting to telnet."
        }
    }

    # Restore timeout for commands. Not sure why we only use the first of the
    # arguments.
    set timeout $old_timeout
    send "$cmd $pargs\r"

    expect {
        -re "$shell_prompt.*$" {
        }
        timeout {
            if [info exists expect_out(buffer)] {
                set execute_output_string $expect_out(buffer)
            }
            telnet_close $hostname
            return [list -1 "telnet to $hostname for $cmd $pargs failed (timeout)"]
        }               
    }

    #Remove unnecessary 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. Use a short timeout for this.
    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
    }

    # Restore timeout
    set timeout $old_timeout
    if {$status == 0} {
        return [list "0" "$output"]
    } else {
        return [list "1" "$output"]
    }
}


# -----------------------------------------------------------------------------
# For FTP we need to redefine some existing functions to add additional
# features.

# -----------------------------------------------------------------------------
# Download LOCALFILE to HOST as REMOTEFILE by FTP
#
# This version takes a user specified timeout, which we need for our slow
# simulated connection.

# @param[in] host        The host we are connected to.
# @param[in] localfile   The local file to send
# @param[in] remotefile  Name of file at remote end.
# -----------------------------------------------------------------------------
proc ftp_download {host localfile remotefile} {
    set prompt "ftp>"

    verbose "putting $localfile $remotefile"

    if [board_info $host exists hostname] {
        set remotehost [board_info $host hostname]
    } else {
        set remotehost $host
    }

    set spawn_id [ftp_open $host]
    if {$spawn_id < 0} {
        return ""
    }
    set loop 1

    # JPB to set custom timeout (not marked global, so we don't need to save
    # and restore)
    if [board_info $host exists ftp_download_timeout] {
        set timeout [board_info $host ftp_download_timeout]
        verbose "FTP download timeout set to $timeout"
    }

    while {$loop} {
        send -i $spawn_id "put $localfile $remotefile\n"
        expect {
            -i $spawn_id -re ".*Too many open files.*$prompt" {
                ftp_close $host
            }
            -i $spawn_id -re ".*No such file or directory.*$prompt" {
                set loop 0
                set remotefile ""
            }
            -re "(^|\[\r\n\])150.*connection for (.*) \[(\]\[0-9.,\]+\\)\[\r\n\]" {
                set remotefile $expect_out(2,string)
                exp_continue
            }
            -i $spawn_id -re "(^|\[\r\n\])226.*$prompt" {
                set loop 0
            }
            -i $spawn_id -re "Timeout.*$prompt" {
                ftp_close $host
            }
            -i $spawn_id -re "(^|\[\r\n\])\[0-9\]\[0-9\]\[0-9\].*$prompt" {
                set loop 0
                set remotefile ""
            }
            -i $spawn_id default {
                ftp_close $host
            }
        }
        if {$loop} {
            set spawn_id [ftp_open $host]
            if {$spawn_id < 0} {
                return ""
            }
        }
    }
    return $remotefile
}


# 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. We select the IP address using an external
# program which knows about all available Linuxes.
set linux_hostname [exec [file dirname $env(DEJAGNU)]/get-ip.sh]
set_board_info hostname $linux_hostname
send_user "OR32 target hostname is $linux_hostname"

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"
global GXX_UNDER_TEST
set GXX_UNDER_TEST "/opt/or32-new/bin/or32-linux-g++"
set_board_info compiler /opt/or32-new/bin/or32-linux-gcc
set_board_info c++compiler /opt/or32-new/bin/or32-linux-g++
set target_alias "or32-linux"

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          ""
set_board_info ftp_download_timeout  120

# 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]"

# We need to define the right flags if pthreads is to work.
# set_board_info cflags    "-D_XOPEN_SOURCE=600"
# set_board_info cxxflags  "-D_XOPEN_SOURCE=600"

# 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