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+# Simulator dejagnu utilities.
+
+# Communicate simulator path from sim_init to sim_version.
+# For some reason [board_info target sim] doesn't work in sim_version.
+# [Presumubly because the target has been "popped" by then. Odd though.]
+set sim_path "unknown-run"
+
+# Initialize the testrun.
+# Required by dejagnu.
+
+proc sim_init { args } {
+ global sim_path
+ set sim_path [board_info target sim]
+ # Need to return an empty string (copied from GAS).
+ return ""
+}
+
+# Print the version of the simulator being tested.
+# Required by dejagnu.
+
+proc sim_version {} {
+ global sim_path
+ set version 0.5
+ clone_output "$sim_path $version\n"
+}
+
+# Cover function to target_compile.
+# Copied from gdb_compile.
+
+proc sim_compile { source dest type options } {
+ set result [target_compile $source $dest $type $options]
+ regsub "\[\r\n\]*$" "$result" "" result
+ regsub "^\[\r\n\]*" "$result" "" result
+ if { $result != "" } {
+ clone_output "sim compile output: $result"
+ }
+ return $result
+}
+
+# Run a program on the simulator.
+# Required by dejagnu (at least ${tool}_run used to be).
+#
+# SIM_OPTS are options for the simulator.
+# PROG_OPTS are options passed to the simulated program.
+# At present REDIR must be "" or "> foo".
+# OPTIONS is a list of options internal to this routine.
+# This is modelled after target_compile. We want to be able to add new
+# options without having to update all our users.
+# Currently:
+# env(foo)=val - set environment variable foo to val for this run
+# timeout=val - set the timeout to val for this run
+#
+# The result is a list of two elements.
+# The first is one of pass/fail/etc.
+# The second is the program's output.
+#
+# This is different than the sim_load routine provided by
+# dejagnu/config/sim.exp. It's not clear how to pass arguments to the
+# simulator (not the simulated program, the simulator) with sim_load.
+
+proc sim_run { prog sim_opts prog_opts redir options } {
+ global SIMFLAGS
+
+ # Set the default value of the timeout.
+ # FIXME: The timeout value we actually want is a function of
+ # host, target, and testcase.
+ set testcase_timeout [board_info target sim_time_limit]
+ if { "$testcase_timeout" == "" } {
+ set testcase_timeout [board_info host testcase_timeout]
+ }
+ if { "$testcase_timeout" == "" } {
+ set testcase_timeout 240 ;# 240 same as in dejagnu/config/sim.exp.
+ }
+
+ # Initial the environment we pass to the testcase.
+ set testcase_env ""
+
+ # Process OPTIONS ...
+ foreach o $options {
+ if [regexp {^env\((.*)\)=(.*)} $o full var val] {
+ set testcase_env "$testcase_env $var=$val"
+ } elseif [regexp {^timeout=(.*)} $o full val] {
+ set testcase_timeout $val
+ }
+
+ }
+
+ verbose "testcase timeout is set to $testcase_timeout" 1
+
+ set sim [board_info target sim]
+
+ if [is_remote host] {
+ set prog [remote_download host $prog]
+ if { $prog == "" } {
+ error "download failed"
+ return -1;
+ }
+ }
+
+ set board [target_info name]
+ if [board_info $board exists sim,options] {
+ set always_opts [board_info $board sim,options]
+ } else {
+ set always_opts ""
+ }
+
+ # FIXME: this works for UNIX only
+ if { "$testcase_env" != "" } {
+ set sim "env $testcase_env $sim"
+ }
+
+ send_log "$sim $always_opts $SIMFLAGS $sim_opts $prog $prog_opts\n"
+
+ if { "$redir" == "" } {
+ remote_spawn host "$sim $always_opts $SIMFLAGS $sim_opts $prog $prog_opts"
+ } else {
+ remote_spawn host "$sim $always_opts $SIMFLAGS $sim_opts $prog $prog_opts $redir" writeonly
+ }
+ set result [remote_wait host $testcase_timeout]
+
+ set return_code [lindex $result 0]
+ set output [lindex $result 1]
+ # Remove the \r part of "\r\n" so we don't break all the patterns
+ # we want to match.
+ regsub -all -- "\r" $output "" output
+
+ if [is_remote host] {
+ # clean up after ourselves.
+ remote_file host delete $prog
+ }
+
+ # ??? Not sure the test for pass/fail is right.
+ # We just care that the simulator ran correctly, not whether the simulated
+ # program return 0 or non-zero from `main'.
+ set status fail
+ if { $return_code == 0 } {
+ set status pass
+ }
+
+ return [list $status $output]
+}
+
+# Run testcase NAME.
+# NAME is either a fully specified file name, or just the file name in which
+# case $srcdir/$subdir will be prepended.
+# ALL_MACHS is a list of machs to use if "mach: all" is specified in the file.
+# The file can contain options in the form "# option(mach list): value"
+# Possibilities:
+# mach: [all | machine names]
+# as[(mach-list)]: <assembler options>
+# ld[(mach-list)]: <linker options>
+# sim[(mach-list)]: <simulator options>
+# output[(mach-list)]: program output pattern to match with string-match
+# xerror[(mach-list)]: program is expected to return with a "failure" exit code
+# If `output' is not specified, the program must output "pass" if !xerror or
+# "fail" if xerror.
+# The parens in "optname()" are optional if the specification is for all machs.
+
+proc run_sim_test { name all_machs } {
+ global subdir srcdir
+ global AS ASFLAGS LD LDFLAGS SIMFLAGS
+ global opts
+
+ if [string match "*/*" $name] {
+ set file $name
+ set name [file tail $name]
+ } else {
+ set file "$srcdir/$subdir/$name"
+ }
+
+ set opt_array [slurp_options "${file}"]
+ if { $opt_array == -1 } {
+ unresolved $subdir/$name
+ return
+ }
+ set opts(as) {}
+ set opts(ld) {}
+ set opts(sim) {}
+ set opts(output) {}
+ set opts(mach) {}
+ set opts(timeout) {}
+ set opts(xerror) "no"
+
+ foreach i $opt_array {
+ set opt_name [lindex $i 0]
+ set opt_machs [lindex $i 1]
+ set opt_val [lindex $i 2]
+ if ![info exists opts($opt_name)] {
+ perror "unknown option $opt_name in file $file"
+ unresolved $subdir/$name
+ return
+ }
+ foreach m $opt_machs {
+ set opts($opt_name,$m) $opt_val
+ }
+ if { "$opt_machs" == "" } {
+ set opts($opt_name) $opt_val
+ }
+ }
+
+ set testname $name
+ set sourcefile $file
+ if { $opts(output) == "" } {
+ if { "$opts(xerror)" == "no" } {
+ set opts(output) "pass\n"
+ } else {
+ set opts(output) "fail\n"
+ }
+ }
+ # Change \n sequences to newline chars.
+ regsub -all "\\\\n" $opts(output) "\n" opts(output)
+
+ foreach mach $opts(mach) {
+ verbose "Testing $name on $mach."
+
+ if ![info exists opts(as,$mach)] {
+ set opts(as,$mach) $opts(as)
+ }
+ send_log "$AS $ASFLAGS $opts(as,$mach) -I$srcdir/$subdir -o ${name}.o $sourcefile\n"
+ catch "exec $AS $ASFLAGS $opts(as,$mach) -I$srcdir/$subdir -o ${name}.o $sourcefile" comp_output
+
+ if ![string match "" $comp_output] {
+ verbose -log "$comp_output" 3
+ fail "$mach $testname"
+ continue
+ }
+
+ if ![info exists opts(ld,$mach)] {
+ set opts(ld,$mach) $opts(ld)
+ }
+ send_log "$LD $LDFLAGS $opts(ld,$mach) -o ${name}.x ${name}.o\n"
+ catch "exec $LD $LDFLAGS $opts(ld,$mach) -o ${name}.x ${name}.o" comp_output
+
+ if ![string match "" $comp_output] {
+ verbose -log "$comp_output" 3
+ fail "$mach $testname"
+ continue
+ }
+
+ # If no machine specific options, default to the general version.
+ if ![info exists opts(sim,$mach)] {
+ set opts(sim,$mach) $opts(sim)
+ }
+
+ # Build the options argument.
+ set options ""
+ if { "$opts(timeout)" != "" } {
+ set options "$options timeout=$opts(timeout)"
+ }
+
+ set result [sim_run ${name}.x "$opts(sim,$mach)" "" "" "$options"]
+ set status [lindex $result 0]
+ set output [lindex $result 1]
+
+ if { "$status" == "pass" } {
+ if { "$opts(xerror)" == "no" } {
+ if [string match $opts(output) $output] {
+ pass "$mach $testname"
+ } else {
+ verbose -log "output: $output" 3
+ verbose -log "pattern: $opts(output)" 3
+ fail "$mach $testname"
+ }
+ } else {
+ verbose -log "`pass' return code when expecting failure" 3
+ fail "$mach $testname"
+ }
+ } elseif { "$status" == "fail" } {
+ if { "$opts(xerror)" == "no" } {
+ fail "$mach $testname"
+ } else {
+ if [string match $opts(output) $output] {
+ pass "$mach $testname"
+ } else {
+ verbose -log "output: $output" 3
+ verbose -log "pattern: $opts(output)" 3
+ fail "$mach $testname"
+ }
+ }
+ } else {
+ $status "$mach $testname"
+ }
+ }
+}
+
+# Subroutine of run_sim_test to process options in FILE.
+
+proc slurp_options { file } {
+ if [catch { set f [open $file r] } x] {
+ #perror "couldn't open `$file': $x"
+ perror "$x"
+ return -1
+ }
+ set opt_array {}
+ # whitespace expression
+ set ws {[ ]*}
+ set nws {[^ ]*}
+ # whitespace is ignored anywhere except within the options list;
+ # option names are alphabetic only
+ set pat "^#${ws}(\[a-zA-Z\]*)\\(?(\[^):\]*)\\)?$ws:${ws}(.*)$ws\$"
+ # Allow comment as first line of file.
+ set firstline 1
+ while { [gets $f line] != -1 } {
+ set line [string trim $line]
+ # Whitespace here is space-tab.
+ if [regexp $pat $line xxx opt_name opt_machs opt_val] {
+ # match!
+ lappend opt_array [list $opt_name $opt_machs $opt_val]
+ } else {
+ if { ! $firstline } {
+ break
+ }
+ }
+ set firstline 0
+ }
+ close $f
+ return $opt_array
+}
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