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# Copyright (C) 2006, 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 .

# Miscellaneous CRIS simulator testcases in assembly code, testing

# dv-rv.c and dv-cris.c functions.

# Check whether dv-rv and dv-cris are present.

proc sim_has_rv_and_cris {} {

    global srcdir

    global subdir

    global SIMFLAGS

    global global_as_options

    global global_ld_options

    global global_sim_options

    # We need to assemble and link a trivial program and pass that, in

    # order to test successful exit.

    # A bit of duplication here for the assembling and linking part;

    # what we want to do it to run the simulator without affecting the

    # PASS/FAIL counters, and we can use e.g. run_sim_test for that.

    if ![info exists global_as_options] {

        set global_as_options ""

    }

    if ![info exists global_ld_options] {

        set global_ld_options ""

    }

    if ![info exists global_sim_options] {

        set global_sim_options ""

    }

    set comp_output [target_assemble $srcdir/$subdir/quit.s quit.o \

                         "-I$srcdir/$subdir $global_as_options"]

    if ![string match "" $comp_output] {

        verbose -log "$comp_output" 3

        fail "rv sim test setup (assembling)"

        return 0

    }

    set comp_output [target_link quit.o quit.x "$global_ld_options"]

    if ![string match "" $comp_output] {

        verbose -log "$comp_output" 3

        fail "rv sim test setup (linking)"

        return 0

    }

    set result \

        [sim_run quit.x \

             "$global_sim_options --hw-device rv --hw-device cris --hw-info" \

             "" "" ""]

    set return_code [lindex $result 0]

    set output [lindex $result 1]

    if { "$return_code" == "pass" } {

        return 1

    }

    return 0

}

# Similar to slurp_options, but lines are fixed format "^#r ..." (not

# "^#{ws}*r:{ws}+" to avoid intruding on slurp_options syntax).  Only

# trailing whitespace of the "..." is trimmed.  Beware that lines

# including parameters may not contain ":".

proc slurp_rv { file } {

    if [catch { set f [open $file r] } x] {

        #perror "couldn't open `$file': $x"

        perror "$x"

        return -1

    }

    set rv_array {}

    # whitespace expression

    set ws  {[  ]*}

    # whitespace is ignored at the end of a line.

    set pat "^#r (.*)$ws\$"

    # Allow arbitrary lines until the first option is seen.

    set seen_opt 0

    while { [gets $f line] != -1 } {

        set line [string trim $line]

        # Whitespace here is space-tab.

        if [regexp $pat $line xxx cmd] {

            # match!

            lappend rv_array $cmd

            set seen_opt 1

        } else {

            if { $seen_opt } {

                break

            }

        }

    }

    close $f

    return $rv_array

}

# The main test loop.

if [istarget cris*-*-*] {

    global ASFLAGS_FOR_TARGET

    set has_rv_and_cris [sim_has_rv_and_cris]

    global global_as_options

    global global_ld_options

    global global_sim_options

    set saved_global_sim_options $global_sim_options

    set saved_global_ld_options $global_ld_options

    set rvdummy "[file dirname [board_info target sim]]/rvdummy"

    # All machines we test and the corresponding assembler option.

    # We'll only ever test v10 and higher here.

    set combos {{"crisv10" "--march=v10 --no-mul-bug-abort"}

                {"crisv32" "--march=v32"}}

    # We need to pass different assembler flags for each machine.

    # Specifying it here rather than adding a specifier to each and every

    # test-file is preferrable.

    foreach combo $combos {

        set mach [lindex $combo 0]

        set ASFLAGS_FOR_TARGET "[lindex $combo 1]"

        # The .ms suffix is for "miscellaneous .s".

        foreach src [lsort [glob -nocomplain $srcdir/$subdir/*.ms]] {

            # If we're only testing specific files and this isn't one of them,

            # skip it.

            if ![runtest_file_p $runtests $src] {

                continue

            }

            # Whoever runs the test should be alerted that not all

            # testcases have been checked; that's why we do the loop

            # and don't just return at the top.

            if !$has_rv_and_cris {

                untested $src

                continue

            }

            set sim_defaults "--hw-file $srcdir/$subdir/std.dev"

            set ld_defaults "--section-start=.text=0"

            # We parse options an extra time besides in run_sim_test,

            # to determine if our defaults should be overridden.

            set opt_array [slurp_options $src]

            foreach i $opt_array {

                set opt_name [lindex $i 0]

                set opt_machs [lindex $i 1]

                set opt_val [lindex $i 2]

                # Allow concatenating to the default options by

                # specifying a mach.

                if { $opt_name == "sim" && $opt_machs == "" } {

                    set sim_defaults ""

                }

                if { $opt_name == "ld" && $opt_machs == "" } {

                    set ld_defaults ""

                }

            }

            set rvdummy_id -1

            set hostcmds [slurp_rv $src]

            if { $hostcmds != "" } {

                # I guess we could ask to have rvdummy executed on a

                # remote host, but it looks like too much trouble for

                # a feature rarely used.

                if [is_remote host] {

                    untested $src

                    continue

                }

                set src_components [file split $src]

                set rvfile "[lindex $src_components \

                            [expr [llength $src_components] - 1]].r"

                if [catch { set f [open $rvfile w] } x] {

                    error "$x"

                } {

                    set contents [join $hostcmds "\n"]

                    # Make it possible to use files from the test

                    # source directory; expected with the @-command.

                    regsub -all "@srcdir@" $contents "$srcdir/$subdir" contents

                    verbose "rv: $contents" 2

                    puts $f $contents

                    close $f

                }

                spawn -noecho $rvdummy "$rvfile"

                if { $spawn_id < 0 } {

                    error "Couldn't spawn $rvdummy"

                    continue

                }

                set rvdummy_id $spawn_id

            }

            # Unfortunately this seems like the only way to pass

            # additional sim, ld etc. options to run_sim_test.

            set global_sim_options "$saved_global_sim_options $sim_defaults"

            set global_ld_options "$saved_global_ld_options $ld_defaults"

            run_sim_test $src $mach

            set global_sim_options $saved_global_sim_options

            set global_ld_options $saved_global_ld_options

            # Stop the rvdummy, if it's still running.  We need to

            # wait on it anyway to avoid it turning into a zombie.

            if { $rvdummy_id != -1 } {

                close -i $rvdummy_id

                wait -i $rvdummy_id

                # Gleaned from framework.exp, this seems an indicator

                # to whether the test had expected outcome.  If so, we

                # want to remove the rv-file.

                if { $exit_status == 0 } {

                    file delete $rvfile

                }

            }

        }

    }

}