Edit
kc3-lang/libffi/testsuite/lib/libffi.exp
Anthony Green
- testsuite/lib/libffi.exp
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# Copyright (C) 2003, 2005, 2008, 2009, 2010, 2011, 2014, 2019, 2022, 2025 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 proc check_effective_target_gccbug { } { global has_gccbug return $has_gccbug } # Return 1 if the target matches the effective target 'arg', 0 otherwise. # This can be used with any check_* proc that takes no argument and # returns only 1 or 0. It could be used with check_* procs that take # arguments with keywords that pass particular arguments. proc is-effective-target { arg } { global et_index set selected 0 if { ![info exists et_index] } { # Initialize the effective target index that is used in some # check_effective_target_* procs. set et_index 0 } if { [info procs check_effective_target_${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] } if { [ istarget "wasm32-*-*" ] } { # emscripten will get confused if told to build as .exe set exec_suffix "" } else { set exec_suffix ".exe" } # 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 $prog]]$exec_suffix" # 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 $prog]]$exec_suffix" # 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 # We get this from sparc64 linux systems regsub -all "(^|\n)\[^\n\]*warning: .* has a LOAD segment with RWX permissions" $text "" text # Ignore Emscripten INFO messages regsub -all "(^|\n)(cache|shared):INFO:\[^\n\]*" $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? 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}/.." if { [string match $type "executable"] } { lappend options "additional_flags=${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" lappend options "additional_flags=-Wno-unused-command-line-argument" lappend options "additional_flags=-Wl,-search_paths_first" } # 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] } { if { ! [string match "*android*" $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 "*-*-darwin*" $target_triplet] } { if { [string match $compiler_vendor "gnu"] } { lappend options "libs= -lc++" } } elseif { [string match "*android*" $target_triplet] } { lappend options "libs= -lc++" } } if { [string match "arc*-*-linux*" $target_triplet] } { lappend options "libs= -lpthread" } } # emscripten emits this warning while building the feature test # which causes it to be seen as unsupported. if { [string match "wasm32-*" $target_triplet] } { lappend options "additional_flags=-Wno-unused-command-line-argument" } 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" puts $f "int main() {return 0;}" close $f set lines [libffi_target_compile $src /dev/null assemble ""] 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 has_gccbug 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] set has_gccbug false; if { [string match $compiler_vendor "gnu"] \ && [string match "*MSABI*" $abi] \ && ( ( [string match "*DGTEST=57 *" $common] \ && [string match "*call.c*" $testname] ) \ || ( [string match "*DGTEST=54 *" $common] \ && [string match "*callback*" $testname] ) \ || [string match "*DGTEST=55 *" $common] \ || [string match "*DGTEST=56 *" $common] ) } then { if [libffi_feature_test "#if (__GNUC__ < 9) || ((__GNUC__ == 9) && (__GNUC_MINOR__ < 3))"] { set has_gccbug true; } } verbose "Testing $testname, $options" 1 verbose "has_gccbug = $has_gccbug" 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: