# Copyright (C) 1993-2021 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.

# Please email any bugs, comments, and/or additions to this file to:
# dejagnu@gnu.org

# This file was written by Ken Raeburn (raeburn@cygnus.com).

proc load_common_lib { name } {
    global srcdir
    load_file $srcdir/../../binutils/testsuite/lib/$name
}

load_common_lib binutils-common.exp

proc gas_version {} {
    global AS
    if [is_remote host] then {
	remote_exec host "$AS -version < /dev/null" "" "" "gas.version"
	remote_exec host "which $AS" "" "" "gas.which"

	remote_upload host "gas.version"
	remote_upload host "gas.which"

	set which_as [file_contents "gas.which"]
	set tmp [file_contents "gas.version"]

    	remote_file build delete "gas.version"
   	remote_file build delete "gas.which"
    	remote_file host delete "gas.version"
    	remote_file host delete "gas.which"
    } else {
	set which_as [which $AS]
	catch "exec $AS -version < /dev/null" tmp
    }

    # Should find a way to discard constant parts, keep whatever's
    # left, so the version string could be almost anything at all...
    regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number
    if ![info exists number] then {
        return "$which_as (no version number)\n"
    }
    clone_output "$which_as $number\n"
    unset version
}

proc gas_host_run { cmd redir } {
    verbose "Executing $cmd $redir"
    set return_contents_of ""
    if [regexp ">& */dev/null" $redir] then {
	set output_file ""
	set command "$cmd $redir"
    } elseif [regexp "> */dev/null" $redir] then {
	set output_file ""
	set command "$cmd 2>gas.stderr"
	set return_contents_of "gas.stderr"
    } elseif [regexp ">&.*" $redir] then {
	# See PR 5322 for why the following line is used.
	regsub ">&" $redir "" output_file
	set command "$cmd 2>&1"
    } elseif [regexp "2>.*" $redir] then {
	set output_file "gas.out"
	set command "$cmd $redir"
	set return_contents_of "gas.out"
    } elseif [regexp ">.*" $redir] then {
	set output_file ""
	set command "$cmd $redir 2>gas.stderr"
	set return_contents_of "gas.stderr"
    } elseif { "$redir" == "" } then {
	set output_file "gas.out"
	set command "$cmd 2>&1"
	set return_contents_of "gas.out"
    } else {
	fail "gas_host_run: unknown form of redirection string"
    }

    set status [remote_exec host [concat sh -c [list $command]] "" "/dev/null" "$output_file"]
    set to_return ""
    if { "$return_contents_of" != "" } then {
	remote_upload host "$return_contents_of"
	set to_return [file_contents "$return_contents_of"]
	regsub "\n$" $to_return "" to_return
    }

    if { [lindex $status 0] == 0 && "$output_file" != ""
	 && "$output_file" != "$return_contents_of" } then {
	remote_upload host "$output_file"
    }

    return [list [lindex $status 0] "$to_return"]
}

proc gas_run { prog as_opts redir } {
    global AS
    global ASFLAGS
    global comp_output
    global srcdir
    global subdir
    global host_triplet

    set status [gas_host_run "$AS $ASFLAGS $as_opts $srcdir/$subdir/$prog" "$redir"]
    set comp_output [lindex $status 1]
    if { [lindex $status 0] != 0 && [regexp "2>.*" $redir] } then {
	append comp_output "child process exited abnormally"
    }
    set comp_output [prune_warnings $comp_output]
    verbose "output was $comp_output"
    return [list $comp_output ""]
}

proc gas_run_stdin { prog as_opts redir } {
    global AS
    global ASFLAGS
    global comp_output
    global srcdir
    global subdir
    global host_triplet

    set status [gas_host_run "$AS $ASFLAGS $as_opts < $srcdir/$subdir/$prog" "$redir"]
    set comp_output [lindex $status 1]
    if { [lindex $status 0] != 0 && [regexp "2>.*" $redir] } then {
	append comp_output "child process exited abnormally"
    }
    set comp_output [prune_warnings $comp_output]
    verbose "output was $comp_output"
    return [list $comp_output ""]
}

proc all_ones { args } {
    foreach x $args { if [expr $x!=1] { return 0 } }
    return 1
}

# ${tool}_finish (gas_finish) will be called by runtest.exp.  But
# gas_finish should only be used with gas_start.  We use gas_started
# to tell gas_finish if gas_start has been called so that runtest.exp
# can call gas_finish without closing the wrong fd.
set gas_started 0

proc gas_start { prog as_opts } {
    global AS
    global ASFLAGS
    global srcdir
    global subdir
    global spawn_id
    global gas_started

    set gas_started 1

    verbose -log "Starting $AS $ASFLAGS $as_opts $prog" 2
    set status [gas_host_run "$AS $ASFLAGS $as_opts $srcdir/$subdir/$prog" ">&gas.out"]
    spawn -noecho -nottycopy cat gas.out
}

proc gas_finish { } {
    global spawn_id
    global gas_started

    if { $gas_started == 1 } {
	catch "close"
	catch "wait"
	set gas_started 0
    }
}

proc want_no_output { testname } {
    global comp_output

    if ![string match "" $comp_output] then {
	send_log "$comp_output\n"
	verbose "$comp_output" 3
    }
    if [string match "" $comp_output] then {
	pass "$testname"
	return 1
    } else {
	fail "$testname"
	return 0
    }
}

proc gas_test_old { file as_opts testname } {
    gas_run $file $as_opts ""
    return [want_no_output $testname]
}

proc gas_test { file as_opts var_opts testname } {
    global comp_output

    set i 0
    foreach word $var_opts {
	set ignore_stdout($i) [string match "*>" $word]
	set opt($i) [string trim $word {>}]
	incr i
    }
    set max [expr 1<<$i]
    for {set i 0} {[expr $i<$max]} {incr i} {
	set maybe_ignore_stdout ""
	set extra_opts ""
	for {set bit 0} {(1<<$bit)<$max} {incr bit} {
	    set num [expr 1<<$bit]
	    if [expr $i&$num] then {
		set extra_opts "$extra_opts $opt($bit)"
		if $ignore_stdout($bit) then {
		    set maybe_ignore_stdout ">/dev/null"
		}
	    }
	}
	set extra_opts [string trim $extra_opts]
	gas_run $file "$as_opts $extra_opts" $maybe_ignore_stdout

	# Should I be able to use a conditional expression here?
	if [string match "" $extra_opts] then {
	    want_no_output $testname
	} else {
	    want_no_output "$testname ($extra_opts)"
	}
    }
    if [info exists errorInfo] then {
        unset errorInfo
    }
}

proc gas_test_ignore_stdout { file as_opts testname } {
    global comp_output

    gas_run $file $as_opts ">/dev/null"
    want_no_output $testname
}

proc gas_test_error { file as_opts testname } {
    global comp_output

    gas_run $file $as_opts ">/dev/null"
    send_log "$comp_output\n"
    verbose "$comp_output" 3
    if { ![string match "" $comp_output]
	 && ![string match "*Assertion failure*" $comp_output]
	 && ![string match "*Internal error*" $comp_output] } then {
	pass "$testname"
    } else {
	fail "$testname"
    }
}

proc gas_exit {} {}

proc gas_init { args } {
    global target_cpu
    global target_cpu_family
    global target_family
    global target_vendor
    global target_os
    global stdoptlist

    switch -glob "$target_cpu" {
	"m68???"		{ set target_cpu_family m68k }
	"i[3-7]86"		{ set target_cpu_family i386 }
	default			{ set target_cpu_family $target_cpu }
    }

    set target_family "$target_cpu_family-$target_vendor-$target_os"
    set stdoptlist "-a>"

    if ![istarget "*-*-*"] {
	perror "Target name [istarget] is not a triple."
    }
    # Need to return an empty string.
    return
}

# run_dump_tests TESTCASES EXTRA_OPTIONS
# Wrapper for run_dump_test, which is suitable for invoking as
#   run_dump_tests [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
# EXTRA_OPTIONS are passed down to run_dump_test.  Honors runtest_file_p.
# Body cribbed from dg-runtest.

proc run_dump_tests { testcases {extra_options {}} } {
    global runtests

    foreach testcase $testcases {
        # If testing specific files and this isn't one of them, skip it.
        if ![runtest_file_p $runtests $testcase] {
            continue
        }
        run_dump_test [file rootname [file tail $testcase]] $extra_options
    }
}

proc objdump { opts } {
    global OBJDUMP
    global comp_output
    global host_triplet

    set status [gas_host_run "$OBJDUMP $opts" ""]
    set comp_output [prune_warnings [lindex $status 1]]
    verbose "objdump output=$comp_output\n" 3
}

proc objdump_start_no_subdir { prog opts } {
    global OBJDUMP
    global srcdir
    global spawn_id

    verbose "Starting $OBJDUMP $opts $prog" 2
    set status [gas_host_run "$OBJDUMP $opts $prog" ">&gas.out"]
    spawn -noecho -nottycopy cat gas.out
}

proc objdump_finish { } {
    global spawn_id

    catch "close"
    catch "wait"
}

# Default timeout is 10 seconds, loses on a slow machine.  But some
# configurations of dejagnu may override it.
if {$timeout<120} then { set timeout 120 }

expect_after -i {
    timeout			{ perror "timeout" }
    "virtual memory exhausted"	{ perror "virtual memory exhausted" }
    buffer_full			{ perror "buffer full" }
    eof				{ perror "eof" }
}

proc file_contents { filename } {
    set file [open $filename r]
    set contents [read $file]
    close $file
    return $contents
}

proc write_file { filename contents } {
    set file [open $filename w]
    puts $file "$contents"
    close $file
}

proc verbose_eval { expr { level 1 } } {
    global verbose
    if $verbose>$level then { eval verbose "$expr" $level }
}

# This definition is taken from an unreleased version of DejaGnu.  Once
# that version gets released, and has been out in the world for a few
# months at least, it may be safe to delete this copy.
if ![string length [info proc prune_warnings]] {
    #
    # prune_warnings -- delete various system verbosities from TEXT.
    #
    # An example is:
    # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9
    #
    # Sites with particular verbose os's may wish to override this in site.exp.
    #
    proc prune_warnings { text } {
	# This is from sun4's.  Do it for all machines for now.
	# The "\\1" is to try to preserve a "\n" but only if necessary.
	regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text

	# It might be tempting to get carried away and delete blank lines, etc.
	# Just delete *exactly* what we're ask to, and that's it.
	return $text
    }
}

# run_list_test NAME (optional): OPTS TESTNAME
#
# Assemble the file "NAME.s" with command line options OPTS and
# compare the assembler standard error output against the regular
# expressions given in the file "NAME.l".  If TESTNAME is provided,
# it will be used as the name of the test.

proc run_list_test { name {opts {}} {testname {}} } {
    global srcdir subdir
    if { [string length $testname] == 0 } then {
	set testname "[file tail $subdir] $name"
    }
    set file $srcdir/$subdir/$name
    gas_run ${name}.s $opts ">&dump.out"
    if { [regexp_diff "dump.out" "${file}.l"] } then {
	fail $testname
	verbose "output is [file_contents "dump.out"]" 2
	return
    }
    pass $testname
}

# run_list_test_stdin NAME (optional): OPTS TESTNAME
#
# Similar to run_list_test, but use stdin as input.

proc run_list_test_stdin { name {opts {}} {testname {}} } {
    global srcdir subdir
    if { [string length $testname] == 0 } then {
	set testname "[file tail $subdir] $name"
    }
    set file $srcdir/$subdir/$name
    gas_run_stdin ${name}.s $opts ">&dump.out"
    if { [regexp_diff "dump.out" "${file}.l"] } then {
	fail $testname
	verbose "output is [file_contents "dump.out"]" 2
	return
    }
    pass $testname
}