1 files changed, 640 insertions, 0 deletions
diff --git a/js/src/ctypes/libffi/testsuite/lib/libffi.exp b/js/src/ctypes/libffi/testsuite/lib/libffi.exp
new file mode 100644
index 0000000000..c02adf9534
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+++ b/js/src/ctypes/libffi/testsuite/lib/libffi.exp
@@ -0,0 +1,640 @@
+#   Copyright (C) 2003, 2005, 2008, 2009, 2010, 2011, 2014, 2019 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; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+proc load_gcc_lib { filename } {
+    global srcdir
+    load_file $srcdir/lib/$filename
+}
+
+load_lib dg.exp
+load_lib libgloss.exp
+load_gcc_lib target-libpath.exp
+load_gcc_lib wrapper.exp
+
+# Return 1 if the target matches the effective target 'arg', 0 otherwise.
+# This can be used with any check_* proc that takes no argument and
+# returns only 1 or 0.  It could be used with check_* procs that take
+# arguments with keywords that pass particular arguments.
+
+proc is-effective-target { arg } {
+    global et_index
+    set selected 0
+    if { ![info exists et_index] } {
+	# Initialize the effective target index that is used in some
+	# check_effective_target_* procs.
+	set et_index 0
+    }
+    if { [info procs check_effective_target_${arg}] != [list] } {
+	set selected [check_effective_target_${arg}]
+    } else {
+	error "unknown effective target keyword `$arg'" 
+    }
+    verbose "is-effective-target: $arg $selected" 2
+    return $selected
+}
+
+proc is-effective-target-keyword { arg } {
+    if { [info procs check_effective_target_${arg}] != [list] } {
+	return 1
+    } else {
+	return 0
+    }
+}
+
+# Intercept the call to the DejaGnu version of dg-process-target to
+# support use of an effective-target keyword in place of a list of
+# target triplets to xfail or skip a test.
+#
+# The argument to dg-process-target is the keyword "target" or "xfail"
+# followed by a selector:
+#    target-triplet-1 ...
+#    effective-target-keyword
+#    selector-expression
+#
+# For a target list the result is "S" if the target is selected, "N" otherwise.
+# For an xfail list the result is "F" if the target is affected, "P" otherwise.
+
+# In contexts that allow either "target" or "xfail" the argument can be
+#    target selector1 xfail selector2
+# which returns "N" if selector1 is not selected, otherwise the result of
+# "xfail selector2".
+#
+# A selector expression appears within curly braces and uses a single logical
+# operator: !, &&, or ||.  An operand is another selector expression, an
+# effective-target keyword, or a list of target triplets within quotes or
+# curly braces.
+
+if { [info procs saved-dg-process-target] == [list] } {
+    rename dg-process-target saved-dg-process-target
+
+    # Evaluate an operand within a selector expression.
+    proc selector_opd { op } {
+	set selector "target"
+	lappend selector $op
+	set answer [ expr { [dg-process-target $selector] == "S" } ]
+	verbose "selector_opd: `$op' $answer" 2
+	return $answer
+    }
+
+    # Evaluate a target triplet list within a selector expression.
+    # Unlike other operands, this needs to be expanded from a list to
+    # the same string as "target".
+    proc selector_list { op } {
+	set selector "target [join $op]"
+	set answer [ expr { [dg-process-target $selector] == "S" } ]
+	verbose "selector_list: `$op' $answer" 2
+	return $answer
+    }
+
+    # Evaluate a selector expression.
+    proc selector_expression { exp } {
+	if { [llength $exp] == 2 } {
+	    if [string match "!" [lindex $exp 0]] {
+		set op1 [lindex $exp 1]
+		set answer [expr { ! [selector_opd $op1] }]
+	    } else {
+		# Assume it's a list of target triplets.
+		set answer [selector_list $exp]
+	    }
+	} elseif { [llength $exp] == 3 } {
+	    set op1 [lindex $exp 0]
+	    set opr [lindex $exp 1]
+	    set op2 [lindex $exp 2]
+	    if [string match "&&" $opr] {
+		set answer [expr { [selector_opd $op1] && [selector_opd $op2] }]
+	    } elseif [string match "||" $opr] {
+		set answer [expr { [selector_opd $op1] || [selector_opd $op2] }]
+	    } else {
+		# Assume it's a list of target triplets.
+		set answer [selector_list $exp]
+	    }
+	} else {
+	    # Assume it's a list of target triplets.
+	    set answer [selector_list $exp]
+	}
+
+	verbose "selector_expression: `$exp' $answer" 2
+	return $answer
+    }
+
+    # Evaluate "target selector" or "xfail selector".
+
+    proc dg-process-target-1 { args } {
+	verbose "dg-process-target-1: `$args'" 2
+
+	# Extract the 'what' keyword from the argument list.
+	set selector [string trim [lindex $args 0]]
+	if [regexp "^xfail " $selector] {
+	    set what "xfail"
+	} elseif [regexp "^target " $selector] {
+	    set what "target"
+	} else {
+	    error "syntax error in target selector \"$selector\""
+	}
+
+	# Extract the rest of the list, which might be a keyword.
+	regsub "^${what}" $selector "" rest
+	set rest [string trim $rest]
+
+	if [is-effective-target-keyword $rest] {
+	    # The selector is an effective target keyword.
+	    if [is-effective-target $rest] {
+		return [expr { $what == "xfail" ? "F" : "S" }]
+	    } else {
+		return [expr { $what == "xfail" ? "P" : "N" }]
+	    }
+	}
+
+	if [string match "{*}" $rest] {
+	    if [selector_expression [lindex $rest 0]] {
+		return [expr { $what == "xfail" ? "F" : "S" }]
+	    } else {
+		return [expr { $what == "xfail" ? "P" : "N" }]
+	    }
+	}
+
+	# The selector is not an effective-target keyword, so process
+	# the list of target triplets.
+	return [saved-dg-process-target $selector]
+    }
+
+    # Intercept calls to the DejaGnu function.  In addition to
+    # processing "target selector" or "xfail selector", handle
+    # "target selector1 xfail selector2".
+
+    proc dg-process-target { args } {
+	verbose "replacement dg-process-target: `$args'" 2
+
+	set selector [string trim [lindex $args 0]]
+
+	# If the argument list contains both 'target' and 'xfail',
+	# process 'target' and, if that succeeds, process 'xfail'.
+	if [regexp "^target .* xfail .*" $selector] {
+	    set xfail_index [string first "xfail" $selector]
+	    set xfail_selector [string range $selector $xfail_index end]
+	    set target_selector [string range $selector 0 [expr $xfail_index-1]]
+	    set target_selector [string trim $target_selector]
+	    if { [dg-process-target-1 $target_selector] == "N" } {
+		return "N"
+	    }
+	    return [dg-process-target-1 $xfail_selector]
+	    
+	}
+	return [dg-process-target-1 $selector]
+    }
+}
+
+# Define libffi callbacks for dg.exp.
+
+proc libffi-dg-test-1 { target_compile prog do_what extra_tool_flags } {
+
+    # To get all \n in dg-output test strings to match printf output
+    # in a system that outputs it as \015\012 (i.e. not just \012), we
+    # need to change all \n into \r?\n.  As there is no dejagnu flag
+    # or hook to do that, we simply change the text being tested.
+    # Unfortunately, we have to know that the variable is called
+    # dg-output-text and lives in the caller of libffi-dg-test, which
+    # is two calls up.  Overriding proc dg-output would be longer and
+    # would necessarily have the same assumption.
+    upvar 2 dg-output-text output_match
+
+    if { [llength $output_match] > 1 } {
+	regsub -all "\n" [lindex $output_match 1] "\r?\n" x
+	set output_match [lreplace $output_match 1 1 $x]
+    }
+
+    # Set up the compiler flags, based on what we're going to do.
+
+    set options [list]
+    switch $do_what {
+	"compile" {
+	    set compile_type "assembly"
+	    set output_file "[file rootname [file tail $prog]].s"
+	}
+	"link" {
+	    set compile_type "executable"
+	    set output_file "[file rootname [file tail $prog]].exe"
+	    # The following line is needed for targets like the i960 where
+	    # the default output file is b.out.  Sigh.
+	}
+	"run" {
+	    set compile_type "executable"
+	    # FIXME: "./" is to cope with "." not being in $PATH.
+	    # Should this be handled elsewhere?
+	    # YES.
+	    set output_file "./[file rootname [file tail $prog]].exe"
+	    # This is the only place where we care if an executable was
+	    # created or not.  If it was, dg.exp will try to run it.
+	    remote_file build delete $output_file;
+	}
+	default {
+	    perror "$do_what: not a valid dg-do keyword"
+	    return ""
+	}
+    }
+
+    if { $extra_tool_flags != "" } {
+	lappend options "additional_flags=$extra_tool_flags"
+    }
+
+    set comp_output [libffi_target_compile "$prog" "$output_file" "$compile_type" $options];
+
+
+    return [list $comp_output $output_file]
+}
+
+
+proc libffi-dg-test { prog do_what extra_tool_flags } {
+    return [libffi-dg-test-1 target_compile $prog $do_what $extra_tool_flags]
+}
+
+proc libffi-dg-prune { target_triplet text } {
+    # We get this with some qemu emulated systems (eg. ppc64le-linux-gnu)
+    regsub -all "(^|\n)\[^\n\]*unable to perform all requested operations" $text "" text
+    return $text
+}
+
+proc libffi-init { args } {
+    global gluefile wrap_flags;
+    global srcdir
+    global blddirffi
+    global objdir
+    global TOOL_OPTIONS
+    global tool
+    global libffi_include
+    global libffi_link_flags
+    global tool_root_dir
+    global ld_library_path
+    global compiler_vendor
+
+    if ![info exists blddirffi] {
+	set blddirffi [pwd]/..
+    }
+
+    verbose "libffi $blddirffi"
+
+    # Which compiler are we building with?
+    set tmp [grep "$blddirffi/config.log" "^ax_cv_c_compiler_vendor.*$"]
+    regexp -- {^[^=]*=(.*)$} $tmp nil compiler_vendor
+
+    if { [string match $compiler_vendor "gnu"] } {
+        set gccdir [lookfor_file $tool_root_dir gcc/libgcc.a]
+        if {$gccdir != ""} {
+	    set gccdir [file dirname $gccdir]
+        }
+        verbose "gccdir $gccdir"
+
+        set ld_library_path "."
+        append ld_library_path ":${gccdir}"
+
+        set compiler "${gccdir}/xgcc"
+        if { [is_remote host] == 0 && [which $compiler] != 0 } {
+	    foreach i "[exec $compiler --print-multi-lib]" {
+	        set mldir ""
+	        regexp -- "\[a-z0-9=_/\.-\]*;" $i mldir
+	        set mldir [string trimright $mldir "\;@"]
+	        if { "$mldir" == "." } {
+		    continue
+	        }
+	        if { [llength [glob -nocomplain ${gccdir}/${mldir}/libgcc_s*.so.*]] >= 1 } {
+		    append ld_library_path ":${gccdir}/${mldir}"
+	        }
+	    }
+        }
+    }
+
+    # add the library path for libffi.
+    append ld_library_path ":${blddirffi}/.libs"
+
+    verbose "ld_library_path: $ld_library_path"
+
+    # Point to the Libffi headers in libffi.
+    set libffi_include "${blddirffi}/include"
+    verbose "libffi_include $libffi_include"
+
+    set libffi_dir  "${blddirffi}/.libs"
+    verbose "libffi_dir $libffi_dir"
+    if { $libffi_dir != "" } {
+	set libffi_dir [file dirname ${libffi_dir}]
+	set libffi_link_flags "-L${libffi_dir}/.libs"
+    }
+
+    set_ld_library_path_env_vars
+    libffi_maybe_build_wrapper "${objdir}/testglue.o"
+}
+
+proc libffi_exit { } {
+    global gluefile;
+
+    if [info exists gluefile] {
+	file_on_build delete $gluefile;
+	unset gluefile;
+    }
+}
+
+proc libffi_target_compile { source dest type options } {
+    global gluefile wrap_flags;
+    global srcdir
+    global blddirffi
+    global TOOL_OPTIONS
+    global libffi_link_flags
+    global libffi_include
+    global target_triplet
+    global compiler_vendor
+
+    if { [target_info needs_status_wrapper]!="" && [info exists gluefile] } {
+	lappend options "libs=${gluefile}"
+	lappend options "ldflags=$wrap_flags"
+    }
+
+    # TOOL_OPTIONS must come first, so that it doesn't override testcase
+    # specific options.
+    if [info exists TOOL_OPTIONS] {
+	lappend  options "additional_flags=$TOOL_OPTIONS"
+    }
+
+    # search for ffi_mips.h in srcdir, too
+    lappend options "additional_flags=-I${libffi_include} -I${srcdir}/../include  -I${libffi_include}/.."
+    lappend options "additional_flags=${libffi_link_flags}"
+
+    # Darwin needs a stack execution allowed flag.
+
+    if { [istarget "*-*-darwin9*"] || [istarget "*-*-darwin1*"]
+	 || [istarget "*-*-darwin2*"] } {
+	lappend options "additional_flags=-Wl,-allow_stack_execute"
+    }
+
+    # If you're building the compiler with --prefix set to a place
+    # where it's not yet installed, then the linker won't be able to
+    # find the libgcc used by libffi.dylib.  We could pass the
+    # -dylib_file option, but that's complicated, and it's much easier
+    # to just make the linker find libgcc using -L options.
+    if { [string match "*-*-darwin*" $target_triplet] } {
+	lappend options "libs= -shared-libgcc"
+    }
+
+    if { [string match "*-*-openbsd*" $target_triplet] } {
+	lappend options "libs= -lpthread"
+    }
+
+    lappend options "libs= -lffi"
+
+    if { [string match "aarch64*-*-linux*" $target_triplet] } {
+	lappend options "libs= -lpthread"
+    }
+
+    # this may be required for g++, but just confused clang.
+    if { [string match "*.cc" $source] } {
+        lappend options "c++"
+    }
+
+    if { [string match "arc*-*-linux*" $target_triplet] } {
+	lappend options "libs= -lpthread"
+    }
+
+    verbose "options: $options"
+    return [target_compile $source $dest $type $options]
+}
+
+# TEST should be a preprocessor condition.  Returns true if it holds.
+proc libffi_feature_test { test } {
+    set src "ffitest[pid].c"
+
+    set f [open $src "w"]
+    puts $f "#include <ffi.h>"
+    puts $f $test
+    puts $f "/* OK */"
+    puts $f "#else"
+    puts $f "# error Failed $test"
+    puts $f "#endif"
+    close $f
+
+    set lines [libffi_target_compile $src /dev/null assembly ""]
+    file delete $src
+
+    return [string match "" $lines]
+}
+
+# Utility routines.
+
+#
+# search_for -- looks for a string match in a file
+#
+proc search_for { file pattern } {
+    set fd [open $file r]
+    while { [gets $fd cur_line]>=0 } {
+	if [string match "*$pattern*" $cur_line] then {
+	    close $fd
+	    return 1
+	}
+    }
+    close $fd
+    return 0
+}
+
+# Modified dg-runtest that can cycle through a list of optimization options
+# as c-torture does.
+proc libffi-dg-runtest { testcases default-extra-flags } {
+    global runtests
+
+    foreach test $testcases {
+	# If we're only testing specific files and this isn't one of
+	# them, skip it.
+	if ![runtest_file_p $runtests $test] {
+	    continue
+	}
+
+	# Look for a loop within the source code - if we don't find one,
+	# don't pass -funroll[-all]-loops.
+	global torture_with_loops torture_without_loops
+	if [expr [search_for $test "for*("]+[search_for $test "while*("]] {
+	    set option_list $torture_with_loops
+	} else {
+	    set option_list $torture_without_loops
+	}
+
+	set nshort [file tail [file dirname $test]]/[file tail $test]
+
+	foreach flags $option_list {
+	    verbose "Testing $nshort, $flags" 1
+	    dg-test $test $flags ${default-extra-flags}
+	}
+    }
+}
+
+proc run-many-tests { testcases extra_flags } {
+    global compiler_vendor
+    global env
+    switch $compiler_vendor {
+      "clang" {
+        set common "-W -Wall"
+        if [info exists env(LIBFFI_TEST_OPTIMIZATION)] {
+	  set optimizations [ list $env(LIBFFI_TEST_OPTIMIZATION) ]
+        } else { 
+          set optimizations { "-O0" "-O2" }
+        }
+      }
+      "gnu" {
+        set common "-W -Wall -Wno-psabi"
+        if [info exists env(LIBFFI_TEST_OPTIMIZATION)] {
+	  set optimizations [ list $env(LIBFFI_TEST_OPTIMIZATION) ]
+        } else { 
+          set optimizations { "-O0" "-O2" }
+        }
+      }
+      default {
+        # Assume we are using the vendor compiler.
+        set common ""
+        if [info exists env(LIBFFI_TEST_OPTIMIZATION)] {
+	  set optimizations [ list $env(LIBFFI_TEST_OPTIMIZATION) ]
+        } else { 
+          set optimizations { "" }
+        }
+      }
+    }
+
+    info exists env(LD_LIBRARY_PATH)
+
+    set targetabis { "" }
+    if [string match $compiler_vendor "gnu"] {
+        if [libffi_feature_test "#ifdef __i386__"] {
+            set targetabis {
+                ""
+                "-DABI_NUM=FFI_STDCALL -DABI_ATTR=__STDCALL__"
+                "-DABI_NUM=FFI_THISCALL -DABI_ATTR=__THISCALL__"
+                "-DABI_NUM=FFI_FASTCALL -DABI_ATTR=__FASTCALL__"
+            }
+        } elseif { [istarget "x86_64-*-*"] \
+		   && [libffi_feature_test "#if !defined __ILP32__  \
+						&& !defined __i386__"] } {
+            set targetabis {
+                ""
+                "-DABI_NUM=FFI_GNUW64 -DABI_ATTR=__MSABI__"
+            }
+        }
+    }
+
+    set common [ concat $common $extra_flags ]
+    foreach test $testcases {
+        set testname [file tail $test]
+        if [search_for $test "ABI_NUM"] {
+            set abis $targetabis
+        } else {
+            set abis { "" }
+        }
+        foreach opt $optimizations {
+            foreach abi $abis {
+                set options [concat $common $opt $abi]
+                verbose "Testing $testname, $options" 1
+                dg-test $test $options ""
+            }
+        }
+    }
+}
+
+# Like check_conditional_xfail, but callable from a dg test.
+
+proc dg-xfail-if { args } {
+    set args [lreplace $args 0 0]
+    set selector "target [join [lindex $args 1]]"
+    if { [dg-process-target $selector] == "S" } {
+	global compiler_conditional_xfail_data
+	set compiler_conditional_xfail_data $args
+    }
+}
+
+proc check-flags { args } {
+
+    # The args are within another list; pull them out.
+    set args [lindex $args 0]
+
+    # The next two arguments are optional.  If they were not specified,
+    # use the defaults.
+    if { [llength $args] == 2 } {
+	lappend $args [list "*"]
+    }
+    if { [llength $args] == 3 } {
+	lappend $args [list ""]
+    }
+
+    # If the option strings are the defaults, or the same as the
+    # defaults, there is no need to call check_conditional_xfail to
+    # compare them to the actual options.
+    if { [string compare [lindex $args 2] "*"] == 0
+	 && [string compare [lindex $args 3] "" ] == 0 } {
+	set result 1    
+    } else {
+	# The target list might be an effective-target keyword, so replace
+	# the original list with "*-*-*", since we already know it matches.
+	set result [check_conditional_xfail [lreplace $args 1 1 "*-*-*"]]
+    }
+
+    return $result
+}
+
+proc dg-skip-if { args } {
+    # Verify the number of arguments.  The last two are optional.
+    set args [lreplace $args 0 0]
+    if { [llength $args] < 2 || [llength $args] > 4 } {
+        error "dg-skip-if 2: need 2, 3, or 4 arguments"
+    }
+
+    # Don't bother if we're already skipping the test.
+    upvar dg-do-what dg-do-what
+    if { [lindex ${dg-do-what} 1] == "N" } {
+      return
+    }
+
+    set selector [list target [lindex $args 1]]
+    if { [dg-process-target $selector] == "S" } {
+        if [check-flags $args] {
+            upvar dg-do-what dg-do-what
+            set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
+        }
+    }
+}
+
+# We need to make sure that additional_files and additional_sources
+# are both cleared out after every test.  It is not enough to clear
+# them out *before* the next test run because gcc-target-compile gets
+# run directly from some .exp files (outside of any test).  (Those
+# uses should eventually be eliminated.)
+
+# Because the DG framework doesn't provide a hook that is run at the
+# end of a test, we must replace dg-test with a wrapper.
+
+if { [info procs saved-dg-test] == [list] } {
+    rename dg-test saved-dg-test
+
+    proc dg-test { args } {
+	global additional_files
+	global additional_sources
+	global errorInfo
+
+	if { [ catch { eval saved-dg-test $args } errmsg ] } {
+	    set saved_info $errorInfo
+	    set additional_files ""
+	    set additional_sources ""
+	    error $errmsg $saved_info
+	}
+	set additional_files ""
+	set additional_sources ""
+    }
+}
+
+# Local Variables:
+# tcl-indent-level:4
+# End: