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# Copyright (C) 92, 1993, 1994, 1996, 1997, 1998 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 2 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, write to the Free Software
# Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# Please email any bugs, comments, and/or additions to this file to:
# bug-gcc@prep.ai.mit.edu

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

if ![info exists board] {
    error "must set $board before loading unix.exp"
}

# For rcp_download, rsh_exec.
load_lib remote.exp

#
# unix_load -- load the program and execute it
#
# See default.exp for explanation of arguments and results.
#


proc unix_load { dest prog args } {
    global ld_library_path
    set output "";

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

    if { [llength $args] > 1 } {
        set inp [lindex $args 1];
    } else {
        set inp ""
    }

    if ![file exists $prog] then {
        # We call both here because this should never happen.
        perror "$prog does not exist in unix_load."
        verbose -log "$prog does not exist." 3
        return "untested"
    }
    verbose "loading to $dest" 2
    if ![is_remote $dest] {
        if { "$inp" != "" } {
            set command "$prog $parg < $inp"
        } else {
            set command "$prog $parg";
        }

        if [info exists ld_library_path] {
            setenv LD_LIBRARY_PATH $ld_library_path                 
            setenv SHLIB_PATH $ld_library_path
        }
 
        set id [remote_spawn $dest "$command" "readonly"];
        if { $id < 0 } {
            set output "remote_spawn failed"
            set status -1;
        } else {
            set status [remote_wait $dest 300];
            set output [lindex $status 1];
            set status [lindex $status 0];
        }
        # Unset them so we don't potentially get hosed when we try to run a
        # non-testcase executable. (Setting LD_LIBRARY_PATH is the wrong
        # fix in the first place; this just tries to minimize the resulting
        # crap.)
        if [info exists ld_library_path] {
            unsetenv LD_LIBRARY_PATH
            unsetenv SHLIB_PATH
        }
    } else { 
        set remotefile "/tmp/[file tail $prog].[pid]"
        set remotefile [remote_download $dest $prog $remotefile];
        if { $remotefile == "" } {
            verbose -log "Download of $prog to [board_info $dest name] failed." 3
            return [list "unresolved" ""];
        }
        if [board_info $dest exists remote_link] {
            if [[board_info $dest remote_link] $remotefile] {
                verbose -log "Couldn't do remote link"
                remote_exec $dest "\\rm -f $remotefile"
                return [list "unresolved" ""]
            }

            verbose "$prog linked ok" 3
        } else {
            # rcp's to lynx seem not to get marked executable
            set status [remote_exec $dest "chmod +x $remotefile"]
            if { [lindex $status 0] != 0 } {
                remote_file $dest delete ${remotefile}.o $remotefile
                verbose -log "chmod +x of $prog on $dest failed." 3
                return [list "unresolved" ""];
            }
        }
        set status [remote_exec $dest "$remotefile" $parg $inp]
        remote_file $dest delete $remotefile.o $remotefile;
        if { [lindex $status 0] < 0 } {
            verbose -log "Couldn't execute $prog, [lindex $status 1]" 3
            return [list "unresolved" ""]
        }
        set output [lindex $status 1]
        set status [lindex $status 0]
    }

    verbose "Executed $prog, status $status" 2
    if ![string match "" $output] {
        verbose -- "$output" 2
    }
    if { $status == 0 } {
        set result "pass";
    } else {
        set result "fail";
    }
    return [list $result $output];
}

set_board_info protocol  "unix";