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# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2001
# 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, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

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

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

# These variables are local to this file.
# This or more warnings and a test fails.
set warning_threshold 3
# This or more errors and a test fails.
set perror_threshold 1

proc mail_file { file to subject } {
    if [file readable $file] {
        catch "exec mail -s \"$subject\" $to < $file"
    }
}

#
# Open the output logs
#
proc open_logs { } {
    global outdir
    global tool
    global sum_file
    
    if { ${tool} ==  "" } {
        set tool testrun
    }
    catch "exec rm -f $outdir/$tool.sum"
    set sum_file [open "$outdir/$tool.sum" w]
    catch "exec rm -f $outdir/$tool.log"
    log_file -a "$outdir/$tool.log"
    verbose "Opening log files in $outdir"
    if { ${tool} ==  "testrun" } {
        set tool ""
    }
}


#
# Close the output logs
#
proc close_logs { } {
    global sum_file
    
    catch "close $sum_file"
}

#
# Check build host triplet for pattern
#
# With no arguments it returns the triplet string.
#
proc isbuild { pattern } {
    global build_triplet
    global host_triplet
    
    if ![info exists build_triplet] {
        set build_triplet ${host_triplet}
    }
    if [string match "" $pattern] {
        return $build_triplet
    }
    verbose "Checking pattern \"$pattern\" with $build_triplet" 2
    
    if [string match "$pattern" $build_triplet] {
        return 1
    } else {
        return 0
    }
}

#
# Is $board remote? Return a non-zero value if so.
#
proc is_remote { board } {
    global host_board;
    global target_list;

    verbose "calling is_remote $board" 3;
    # Remove any target variant specifications from the name.
    set board [lindex [split $board "/"] 0];

    # Map the host or build back into their short form.
    if { [board_info build name] == $board } {
        set board "build";
    } elseif { [board_info host name] == $board } {
        set board "host";
    }

    # We're on the "build". The check for the empty string is just for
    # paranoia's sake--we shouldn't ever get one. "unix" is a magic
    # string that should really go away someday.
    if { $board == "build" || $board == "unix" || $board == "" } {
        verbose "board is $board, not remote" 3;
        return 0;
    }

    if { $board == "host" } {
        if { [info exists host_board] && $host_board != "" } {
            verbose "board is $board, is remote" 3;
            return 1;
        } else {
            verbose "board is $board, host is local" 3;
            return 0;
        }
    }

    if { $board == "target" } {
        global current_target_name

        if [info exists current_target_name] {
            # This shouldn't happen, but we'll be paranoid anyway.
            if { $current_target_name != "target" } {
                return [is_remote $current_target_name];
            }
        }
        return 0;
    }
    if [board_info $board exists isremote] {
        verbose "board is $board, isremote is [board_info $board isremote]" 3;
        return [board_info $board isremote];
    }
    return 1;
}
#
# If this is a canadian (3 way) cross. This means the tools are
# being built with a cross compiler for another host.
#
proc is3way {} {
    global host_triplet
    global build_triplet
    
    if ![info exists build_triplet] {
        set build_triplet ${host_triplet}
    }
    verbose "Checking $host_triplet against $build_triplet" 2
    if { "$build_triplet" == "$host_triplet" } {
        return 0
    }
    return 1
}

#
# Check host triplet for pattern
#
# With no arguments it returns the triplet string.
#
proc ishost { pattern } {
    global host_triplet
    
    if [string match "" $pattern] {
        return $host_triplet
    }
    verbose "Checking pattern \"$pattern\" with $host_triplet" 2
    
    if [string match "$pattern" $host_triplet] {
        return 1
    } else {
        return 0
    }
}

#
# Check target triplet for pattern
#
# With no arguments it returns the triplet string.
# Returns 1 if the target looked for, or 0 if not.
#
proc istarget { args } {
    global target_triplet
    
    # if no arg, return the config string
    if [string match "" $args] {
        if [info exists target_triplet] {
            return $target_triplet
        } else {
            perror "No target configuration names found."
        }
    }

    set triplet [lindex $args 0]

    # now check against the cannonical name
    if [info exists target_triplet] {
        verbose "Checking \"$triplet\" against \"$target_triplet\"" 2
        if [string match $triplet $target_triplet] {
            return 1
        }
    }

    # nope, no match
    return 0
}

#
# Check to see if we're running the tests in a native environment
#
# Returns 1 if running native, 0 if on a target.
#
proc isnative { } {
    global target_triplet
    global build_triplet
    
    if [string match $build_triplet $target_triplet] {
        return 1
    }
    return 0
}

#
# unknown -- called by expect if a proc is called that doesn't exist
#
proc unknown { args } {
    global errorCode
    global errorInfo
    global exit_status

    clone_output "ERROR: (DejaGnu) proc \"$args\" does not exist."
    if [info exists errorCode] {
        send_error "The error code is $errorCode\n"
    }
    if [info exists errorInfo] {
        send_error "The info on the error is:\n$errorInfo\n"
    }

    set exit_status 1;
    log_and_exit;
}

#
# Print output to stdout (or stderr) and to log file
#
# If the --all flag (-a) option was used then all messages go the the screen.
# Without this, all messages that start with a keyword are written only to the
# detail log file.  All messages that go to the screen will also appear in the
# detail log.  This should only be used by the framework itself using pass,
# fail, xpass, xfail, warning, perror, note, untested, unresolved, or
# unsupported procedures.
#
proc clone_output { message } {
    global sum_file
    global all_flag
    
    if { $sum_file != "" } {
        puts $sum_file "$message"
    }

    regsub "^\[ \t\]*(\[^ \t\]+).*$" "$message" "\\1" firstword;
    case "$firstword" in {
        {"PASS:" "XFAIL:" "UNRESOLVED:" "UNSUPPORTED:" "UNTESTED:"} {
            if $all_flag {
                send_user "$message\n"
                return "$message"
            } else {
                send_log "$message\n"
            }
        }
        {"ERROR:" "WARNING:" "NOTE:"} {
            send_error "$message\n"
            return "$message"
        }
        default {
            send_user "$message\n"
            return "$message"
        }
    }
}

#
# Reset a few counters.
#
proc reset_vars {} {
    global test_names test_counts;
    global warncnt errcnt;

    # other miscellaneous variables
    global prms_id
    global bug_id
    
    # reset them all
    set prms_id 0;
    set bug_id  0;
    set warncnt 0;
    set errcnt  0;
    foreach x $test_names {
        set test_counts($x,count) 0;
    }

    # Variables local to this file.
    global warning_threshold perror_threshold
    set warning_threshold 3
    set perror_threshold 1
}

proc log_and_exit {} {
    global exit_status;
    global tool mail_logs outdir mailing_list;

    log_summary total;
    # extract version number
    if {[info procs ${tool}_version] != ""} {
        if {[catch "${tool}_version" output]} {
            warning "${tool}_version failed:\n$output"
        }
    }
    close_logs
    cleanup
    verbose -log "runtest completed at [timestamp -format %c]"
    if $mail_logs {
        mail_file $outdir/$tool.sum $mailing_list "Dejagnu Summary Log"
    }
    remote_close host
    remote_close target
    exit $exit_status
}
#
# Print summary of all pass/fail counts
#
proc log_summary { args } {
    global tool
    global sum_file
    global exit_status
    global mail_logs
    global outdir
    global mailing_list
    global current_target_name
    global test_counts;
    global testcnt;

    if { [llength $args] == 0 } {
        set which "count";
    } else {
        set which [lindex $args 0];
    }

    if { [llength $args] == 0 } {
        clone_output "\n\t\t=== $tool Summary for $current_target_name ===\n"
    } else {
        clone_output "\n\t\t=== $tool Summary ===\n"
    }

    # If the tool set `testcnt', it wants us to do a sanity check on the
    # total count, so compare the reported number of testcases with the
    # expected number.  Maintaining an accurate count in `testcnt' isn't easy
    # so it's not clear how often this will be used.
    if [info exists testcnt] {
        if { $testcnt > 0 } {
            set totlcnt 0;
            # total all the testcases reported
            foreach x { FAIL PASS XFAIL XPASS UNTESTED UNRESOLVED UNSUPPORTED } {
                incr totlcnt test_counts($x,$which);
            }
            set testcnt test_counts(total,$which);
            
            if { $testcnt>$totlcnt || $testcnt<$totlcnt } {
                if { $testcnt > $totlcnt } {
                    set mismatch "unreported  [expr $testcnt-$totlcnt]"
                }
                if { $testcnt < $totlcnt } {
                    set mismatch "misreported [expr $totlcnt-$testcnt]"
                }
            } else {
                verbose "# of testcases run         $testcnt"
            }

            if [info exists mismatch] {
                clone_output "### ERROR: totals do not equal number of testcases run"
                clone_output "### ERROR: # of testcases expected    $testcnt"
                clone_output "### ERROR: # of testcases reported    $totlcnt"
                clone_output "### ERROR: # of testcases $mismatch\n"
            }
        }
    }
    foreach x { PASS FAIL XPASS XFAIL UNRESOLVED UNTESTED UNSUPPORTED } {
        set val $test_counts($x,$which);
        if { $val > 0 } {
            set mess "# of $test_counts($x,name)";
            if { [string length $mess] < 24 } {
                append mess "\t";
            }
            clone_output "$mess\t$val";
        }
    }
}

#
# Close all open files, remove temp file and core files
#
proc cleanup {} {
    global sum_file
    global exit_status
    global done_list
    global subdir
    
    #catch "exec rm -f [glob xgdb core *.x *.o *_soc a.out]"
    #catch "exec rm -f [glob -nocomplain $subdir/*.o $subdir/*.x $subdir/*_soc]"
}

#
# Setup a flag to control whether a failure is expected or not
#
# Multiple target triplet patterns can be specified for targets
# for which the test fails.  A bug report ID can be specified,
# which is a string without '-'.
#
proc setup_xfail { args } {
    global xfail_flag
    global xfail_prms
    
    set xfail_prms 0
    set argc [ llength $args ]
    for { set i 0 } { $i < $argc } { incr i } {
        set sub_arg [ lindex $args $i ]
        # is a prms number. we assume this is a string with no '-' characters
        if [regexp "^\[^\-\]+$" $sub_arg] { 
            set xfail_prms $sub_arg
            continue
        }
        if [istarget $sub_arg] {
            set xfail_flag 1
            continue
        }
    }
}


# check to see if a conditional xfail is triggered
#       message {targets} {include} {exclude}
#              
#
proc check_conditional_xfail { args } {
    global compiler_flags

    set all_args [lindex $args 0]

    set message [lindex $all_args 0]

    set target_list [lindex $all_args 1]
    verbose "Limited to targets: $target_list" 3

    # get the list of flags to look for
    set includes [lindex $all_args 2]
    verbose "Will search for options $includes" 3

    # get the list of flags to exclude
    if { [llength $all_args] > 3 } {
        set excludes [lindex $all_args 3]
        verbose "Will exclude for options $excludes" 3
    } else {
        set excludes ""
    }
    
    # loop through all the targets, checking the options for each one
    verbose "Compiler flags are: $compiler_flags" 2
    
    set incl_hit 0
    set excl_hit 0
    foreach targ $target_list {
        if [istarget $targ] {
            # look through the compiler options for flags we want to see
            # this is really messy cause each set of options to look for
            # may also be a list. We also want to find each element of the
            # list, regardless of order to make sure they're found.
            # So we look for lists in side of lists, and make sure all 
            # the elements match before we decide this is legit.
            for { set i 0 } { $i < [llength $includes] } { incr i } {
                set incl_hit 0
                set opt [lindex $includes $i]
                verbose "Looking for $opt to include in the compiler flags" 2
                foreach j "$opt" {
                    if [string match "* $j *" $compiler_flags] {
                        verbose "Found $j to include in the compiler flags" 2
                        incr incl_hit
                    }
                }
                # if the number of hits we get is the same as the number of
                # specified options, then we got a match
                if {$incl_hit == [llength $opt]} {
                    break
                } else {
                    set incl_hit 0
                }
            }
            # look through the compiler options for flags we don't
            # want to see
            for { set i 0 } { $i < [llength $excludes] } { incr i } {
                set excl_hit 0
                set opt [lindex $excludes $i]
                verbose "Looking for $opt to exclude in the compiler flags" 2
                foreach j "$opt" {
                    if [string match "* $j *" $compiler_flags] {
                        verbose "Found $j to exclude in the compiler flags" 2
                        incr excl_hit
                    }
                }
                # if the number of hits we get is the same as the number of
                # specified options, then we got a match
                if {$excl_hit == [llength $opt]} {
                    break
                } else {
                    set excl_hit 0
                }
            }

            # if we got a match for what to include, but didn't find any reasons
            # to exclude this, then we got a match! So return one to turn this into
            # an expected failure.
            if {$incl_hit && ! $excl_hit } {
                verbose "This is a conditional match" 2
                return 1
            } else {
                verbose "This is not a conditional match" 2
                return 0
            }
        }
    }
    return 0
}

#
# Clear the xfail flag for a particular target
#
proc clear_xfail { args } {
    global xfail_flag
    global xfail_prms
    
    set argc [ llength $args ]
    for { set i 0 } { $i < $argc } { incr i } {
        set sub_arg [ lindex $args $i ]
        case $sub_arg in {
            "*-*-*" {                   # is a configuration triplet
                if [istarget $sub_arg] {
                    set xfail_flag 0
                    set xfail_prms 0
                }
                continue
            }
        }
    }
}

#
# Record that a test has passed or failed (perhaps unexpectedly)
#
# This is an internal procedure, only used in this file.
#
proc record_test { type message args } {
    global exit_status
    global prms_id bug_id
    global xfail_flag xfail_prms
    global errcnt warncnt
    global warning_threshold perror_threshold
    global pf_prefix

    if { [llength $args] > 0 } {
        set count [lindex $args 0];
    } else {
        set count 1;
    }
    if [info exists pf_prefix] {
        set message [concat $pf_prefix " " $message];
    }

    # If we have too many warnings or errors,
    # the output of the test can't be considered correct.
    if { $warning_threshold > 0 && $warncnt >= $warning_threshold
         || $perror_threshold > 0 && $errcnt >= $perror_threshold } {
        verbose "Error/Warning threshold exceeded: \
                 $errcnt $warncnt (max. $perror_threshold $warning_threshold)"
        set type UNRESOLVED
    }

    incr_count $type;

    switch $type {
        PASS {
            if $prms_id {
                set message [concat $message "\t(PRMS $prms_id)"]
            }
        }
        FAIL {
            set exit_status 1
            if $prms_id {
                set message [concat $message "\t(PRMS $prms_id)"]
            }
        }
        XPASS {
            set exit_status 1
            if { $xfail_prms != 0 } {
                set message [concat $message "\t(PRMS $xfail_prms)"]
            }
        }
        XFAIL {
            if { $xfail_prms != 0 } {
                set message [concat $message "\t(PRMS $xfail_prms)"]
            }
        }
        UNTESTED {
            # The only reason we look at the xfail stuff is to pick up
            # `xfail_prms'.
            if { $xfail_flag && $xfail_prms != 0 } {
                set message [concat $message "\t(PRMS $xfail_prms)"]
            } elseif $prms_id {
                set message [concat $message "\t(PRMS $prms_id)"]
            }
        }
        UNRESOLVED {
            set exit_status 1
            # The only reason we look at the xfail stuff is to pick up
            # `xfail_prms'.
            if { $xfail_flag && $xfail_prms != 0 } {
                set message [concat $message "\t(PRMS $xfail_prms)"]
            } elseif $prms_id {
                set message [concat $message "\t(PRMS $prms_id)"]
            }
        }
        UNSUPPORTED {
            # The only reason we look at the xfail stuff is to pick up
            # `xfail_prms'.
            if { $xfail_flag && $xfail_prms != 0 } {
                set message [concat $message "\t(PRMS $xfail_prms)"]
            } elseif $prms_id {
                set message [concat $message "\t(PRMS $prms_id)"]
            }
        }
        default {
            perror "record_test called with bad type `$type'"
            set errcnt 0
            return
        }
    }

    if $bug_id {
        set message [concat $message "\t(BUG $bug_id)"]
    }

    global multipass_name
    if { $multipass_name != "" } {
        set message [format "$type: %s: $message" "$multipass_name"]
    } else {
        set message "$type: $message"
    }
    clone_output "$message"

    # If a command name exists in the $local_record_procs associative
    # array for this type of result, then invoke it.

    set lowcase_type [string tolower $type]
    global local_record_procs
    if {[info exists local_record_procs($lowcase_type)]} {
        $local_record_procs($lowcase_type) "$message"
    }
    
    # Reset these so they're ready for the next test case.  We don't reset
    # prms_id or bug_id here.  There may be multiple tests for them.  Instead
    # they are reset in the main loop after each test.  It is also the
    # testsuite driver's responsibility to reset them after each testcase.
    set warncnt 0
    set errcnt 0
    set xfail_flag 0
    set xfail_prms 0
}

#
# Record that a test has passed
#
proc pass { message } {
    global xfail_flag compiler_conditional_xfail_data

    # if we have a conditional xfail setup, then see if our compiler flags match
    if [ info exists compiler_conditional_xfail_data ] {
        if [check_conditional_xfail $compiler_conditional_xfail_data] {
            set xfail_flag 1
        }
        unset compiler_conditional_xfail_data
    }
    
    if $xfail_flag {
        record_test XPASS $message
    } else {
        record_test PASS $message
    }
}

#
# Record that a test has failed
#
proc fail { message } {
    global xfail_flag compiler_conditional_xfail_data

    # if we have a conditional xfail setup, then see if our compiler flags match
    if [ info exists compiler_conditional_xfail_data ] {
        if [check_conditional_xfail $compiler_conditional_xfail_data] {
            set xfail_flag 1
        }
        unset compiler_conditional_xfail_data
    }

    if $xfail_flag {
        record_test XFAIL $message
    } else {
        record_test FAIL $message
    }
}

#
# Record that a test has passed unexpectedly
#
proc xpass { message } {
    record_test XPASS $message
}

#
# Record that a test has failed unexpectedly
#
proc xfail { message } {
    record_test XFAIL $message
}

#
# Set warning threshold
#
proc set_warning_threshold { threshold } {
    set warning_threshold $threshold
}

#
# Get warning threshold
#
proc get_warning_threshold { } {
    return $warning_threshold
}

#
# Prints warning messages
# These are warnings from the framework, not from the tools being tested.
# It takes a string, and an optional number and returns nothing.
#
proc warning { args } {
    global warncnt
 
    if { [llength $args] > 1 } {
        set warncnt [lindex $args 1]
    } else {
        incr warncnt
    }
    set message [lindex $args 0]
    
    clone_output "WARNING: $message"

    global errorInfo
    if [info exists errorInfo] {
        unset errorInfo
    }
}

#
# Prints error messages
# These are errors from the framework, not from the tools being tested. 
# It takes a string, and an optional number and returns nothing.
#
proc perror { args } {
    global errcnt

    if { [llength $args] > 1 } {
        set errcnt [lindex $args 1]
    } else {
        incr errcnt
    }
    set message [lindex $args 0]
    
    clone_output "ERROR: $message"

    global errorInfo
    if [info exists errorInfo] {
        unset errorInfo
    }
}

#
# Prints informational messages
#
# These are messages from the framework, not from the tools being tested.
# This means that it is currently illegal to call this proc outside
# of dejagnu proper.
#
proc note { message } {
    clone_output "NOTE: $message"

    # ??? It's not clear whether we should do this.  Let's not, and only do
    # so if we find a real need for it.
    #global errorInfo
    #if [info exists errorInfo] {
    #   unset errorInfo
    #}
}

#
# untested -- mark the test case as untested
#
proc untested { message } {
    record_test UNTESTED $message
}

#
# Mark the test case as unresolved
#
proc unresolved { message } {
    record_test UNRESOLVED $message
}

#
# Mark the test case as unsupported
#
# Usually this is used for a test that is missing OS support.
#
proc unsupported { message } {
    record_test UNSUPPORTED $message
}

#
# Set up the values in the test_counts array (name and initial totals).
#
proc init_testcounts { } {
    global test_counts test_names;
    set test_counts(TOTAL,name) "testcases run"
    set test_counts(PASS,name) "expected passes"
    set test_counts(FAIL,name) "unexpected failures"
    set test_counts(XFAIL,name) "expected failures"
    set test_counts(XPASS,name) "unexpected successes"
    set test_counts(WARNING,name) "warnings"
    set test_counts(ERROR,name) "errors"
    set test_counts(UNSUPPORTED,name) "unsupported tests"
    set test_counts(UNRESOLVED,name) "unresolved testcases"
    set test_counts(UNTESTED,name) "untested testcases"
    set j "";

    foreach i [lsort [array names test_counts]] {
        regsub ",.*$" "$i" "" i;
        if { $i == $j } {
            continue;
        }
        set test_counts($i,total) 0;
        lappend test_names $i;
        set j $i;
    }
}

#
# Increment NAME in the test_counts array; the amount to increment can be
# is optional (defaults to 1).
#
proc incr_count { name args } {
    global test_counts;

    if { [llength $args] == 0 } {
        set count 1;
    } else {
        set count [lindex $args 0];
    }
    if [info exists test_counts($name,count)] {
        incr test_counts($name,count) $count;
        incr test_counts($name,total) $count;
    } else {
        perror "$name doesn't exist in incr_count"
    }
}


#
# Create an exp_continue proc if it doesn't exist
#
# For compatablity with old versions.
#
global argv0
if ![info exists argv0] {
    proc exp_continue { } {
        continue -expect
    }
}