libffi/testsuite/lib/libffi.exp

   1 #   Copyright (C) 2003, 2005, 2008, 2009, 2010, 2011, 2014 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; see the file COPYING3.  If not see
  15 # <http://www.gnu.org/licenses/>.
  16
  17 proc load_gcc_lib { filename } {
  18     global srcdir loaded_libs
  19
  20     load_file $srcdir/../../gcc/testsuite/lib/$filename
  21     set loaded_libs($filename) ""
  22 }
  23
  24 load_lib dg.exp
  25 load_lib libgloss.exp
  26 load_gcc_lib target-supports.exp
  27 load_gcc_lib target-supports-dg.exp
  28 load_gcc_lib target-libpath.exp
  29 load_gcc_lib wrapper.exp
  30
  31
  32 # Define libffi callbacks for dg.exp.
  33
  34 proc libffi-dg-test-1 { target_compile prog do_what extra_tool_flags } {
  35
  36     # To get all \n in dg-output test strings to match printf output
  37     # in a system that outputs it as \015\012 (i.e. not just \012), we
  38     # need to change all \n into \r?\n.  As there is no dejagnu flag
  39     # or hook to do that, we simply change the text being tested.
  40     # Unfortunately, we have to know that the variable is called
  41     # dg-output-text and lives in the caller of libffi-dg-test, which
  42     # is two calls up.  Overriding proc dg-output would be longer and
  43     # would necessarily have the same assumption.
  44     upvar 2 dg-output-text output_match
  45
  46     if { [llength $output_match] > 1 } {
  47         regsub -all "\n" [lindex $output_match 1] "\r?\n" x
  48         set output_match [lreplace $output_match 1 1 $x]
  49     }
  50
  51     # Set up the compiler flags, based on what we're going to do.
  52
  53     set options [list]
  54     switch $do_what {
  55         "compile" {
  56             set compile_type "assembly"
  57             set output_file "[file rootname [file tail $prog]].s"
  58         }
  59         "link" {
  60             set compile_type "executable"
  61             set output_file "[file rootname [file tail $prog]].exe"
  62             # The following line is needed for targets like the i960 where
  63             # the default output file is b.out.  Sigh.
  64         }
  65         "run" {
  66             set compile_type "executable"
  67             # FIXME: "./" is to cope with "." not being in $PATH.
  68             # Should this be handled elsewhere?
  69             # YES.
  70             set output_file "./[file rootname [file tail $prog]].exe"
  71             # This is the only place where we care if an executable was
  72             # created or not.  If it was, dg.exp will try to run it.
  73             remote_file build delete $output_file;
  74         }
  75         default {
  76             perror "$do_what: not a valid dg-do keyword"
  77             return ""
  78         }
  79     }
  80
  81     if { $extra_tool_flags != "" } {
  82         lappend options "additional_flags=$extra_tool_flags"
  83     }
  84
  85     set comp_output [libffi_target_compile "$prog" "$output_file" "$compile_type" $options];
  86
  87
  88     return [list $comp_output $output_file]
  89 }
  90
  91
  92 proc libffi-dg-test { prog do_what extra_tool_flags } {
  93     return [libffi-dg-test-1 target_compile $prog $do_what $extra_tool_flags]
  94 }
  95
  96 proc libffi-init { args } {
  97     global gluefile wrap_flags;
  98     global srcdir
  99     global blddirffi
 100     global objdir
 101     global blddircxx
 102     global TOOL_OPTIONS
 103     global tool
 104     global libffi_include
 105     global libffi_link_flags
 106     global tool_root_dir
 107     global ld_library_path
 108     global compiler_vendor
 109
 110     set blddirffi [lookfor_file [get_multilibs] libffi]
 111     verbose "libffi $blddirffi"
 112     set blddircxx [lookfor_file [get_multilibs] libstdc++-v3]
 113     verbose "libstdc++ $blddircxx"
 114
 115     set compiler_vendor "gnu"
 116
 117     set gccdir [lookfor_file $tool_root_dir gcc/libgcc.a]
 118     if {$gccdir != ""} {
 119         set gccdir [file dirname $gccdir]
 120     }
 121     verbose "gccdir $gccdir"
 122
 123     set ld_library_path "."
 124     append ld_library_path ":${gccdir}"
 125
 126     set compiler "${gccdir}/xgcc"
 127     if { [is_remote host] == 0 && [which $compiler] != 0 } {
 128         foreach i "[exec $compiler --print-multi-lib]" {
 129             set mldir ""
 130             regexp -- "\[a-z0-9=_/\.-\]*;" $i mldir
 131             set mldir [string trimright $mldir "\;@"]
 132             if { "$mldir" == "." } {
 133                 continue
 134             }
 135             if { [llength [glob -nocomplain ${gccdir}/${mldir}/libgcc_s*.so.*]] >= 1 } {
 136                 append ld_library_path ":${gccdir}/${mldir}"
 137             }
 138         }
 139     }
 140
 141     # add the library path for libffi.
 142     append ld_library_path ":${blddirffi}/.libs"
 143     # add the library path for libstdc++ as well.
 144     append ld_library_path ":${blddircxx}/src/.libs"
 145
 146     verbose "ld_library_path: $ld_library_path"
 147
 148     # Point to the Libffi headers in libffi.
 149     set libffi_include "${blddirffi}/include"
 150     verbose "libffi_include $libffi_include"
 151
 152     set libffi_dir  "${blddirffi}/.libs"
 153     verbose "libffi_dir $libffi_dir"
 154     if { $libffi_dir != "" } {
 155         set libffi_dir [file dirname ${libffi_dir}]
 156         set libffi_link_flags "-L${libffi_dir}/.libs"
 157         lappend libffi_link_flags "-L${blddircxx}/src/.libs"
 158     }
 159
 160     set_ld_library_path_env_vars
 161     libffi_maybe_build_wrapper "${objdir}/testglue.o"
 162 }
 163
 164 proc libffi_exit { } {
 165     global gluefile;
 166
 167     if [info exists gluefile] {
 168         file_on_build delete $gluefile;
 169         unset gluefile;
 170     }
 171 }
 172
 173 proc libffi_target_compile { source dest type options } {
 174     global gluefile wrap_flags;
 175     global srcdir
 176     global blddirffi
 177     global TOOL_OPTIONS
 178     global libffi_link_flags
 179     global libffi_include
 180     global target_triplet
 181
 182
 183     if { [target_info needs_status_wrapper]!="" && [info exists gluefile] } {
 184         lappend options "libs=${gluefile}"
 185         lappend options "ldflags=$wrap_flags"
 186     }
 187
 188     # TOOL_OPTIONS must come first, so that it doesn't override testcase
 189     # specific options.
 190     if [info exists TOOL_OPTIONS] {
 191         lappend  options [concat "additional_flags=$TOOL_OPTIONS" $options];
 192     }
 193
 194     # search for ffi_mips.h in srcdir, too
 195     lappend options "additional_flags=-I${libffi_include} -I${srcdir}/../include  -I${libffi_include}/.."
 196     lappend options "additional_flags=${libffi_link_flags}"
 197
 198     # Darwin needs a stack execution allowed flag.
 199
 200     if { [istarget "*-*-darwin9*"] || [istarget "*-*-darwin1*"]
 201          || [istarget "*-*-darwin2*"] } {
 202         lappend options "additional_flags=-Wl,-allow_stack_execute"
 203     }
 204
 205     # If you're building the compiler with --prefix set to a place
 206     # where it's not yet installed, then the linker won't be able to
 207     # find the libgcc used by libffi.dylib.  We could pass the
 208     # -dylib_file option, but that's complicated, and it's much easier
 209     # to just make the linker find libgcc using -L options.
 210     if { [string match "*-*-darwin*" $target_triplet] } {
 211         lappend options "libs= -shared-libgcc"
 212     }
 213
 214     if { [string match "*-*-openbsd*" $target_triplet] } {
 215         lappend options "libs= -lpthread"
 216     }
 217
 218     lappend options "libs= -lffi"
 219
 220     if { [string match "aarch64*-*-linux*" $target_triplet] } {
 221         lappend options "libs= -lpthread"
 222     }
 223
 224     verbose "options: $options"
 225     return [target_compile $source $dest $type $options]
 226 }
 227
 228 # TEST should be a preprocessor condition.  Returns true if it holds.
 229 proc libffi_feature_test { test } {
 230     set src "ffitest[pid].c"
 231
 232     set f [open $src "w"]
 233     puts $f "#include <ffi.h>"
 234     puts $f $test
 235     puts $f "/* OK */"
 236     puts $f "#else"
 237     puts $f "# error Failed $test"
 238     puts $f "#endif"
 239     close $f
 240
 241     set lines [libffi_target_compile $src /dev/null assembly ""]
 242     file delete $src
 243
 244     return [string match "" $lines]
 245 }
 246
 247 # Utility routines.
 248
 249 #
 250 # search_for -- looks for a string match in a file
 251 #
 252 proc search_for { file pattern } {
 253     set fd [open $file r]
 254     while { [gets $fd cur_line]>=0 } {
 255         if [string match "*$pattern*" $cur_line] then {
 256             close $fd
 257             return 1
 258         }
 259     }
 260     close $fd
 261     return 0
 262 }
 263
 264 # Modified dg-runtest that can cycle through a list of optimization options
 265 # as c-torture does.
 266 proc libffi-dg-runtest { testcases default-extra-flags } {
 267     global runtests
 268
 269     foreach test $testcases {
 270         # If we're only testing specific files and this isn't one of
 271         # them, skip it.
 272         if ![runtest_file_p $runtests $test] {
 273             continue
 274         }
 275
 276         # Look for a loop within the source code - if we don't find one,
 277         # don't pass -funroll[-all]-loops.
 278         global torture_with_loops torture_without_loops
 279         if [expr [search_for $test "for*("]+[search_for $test "while*("]] {
 280             set option_list $torture_with_loops
 281         } else {
 282             set option_list $torture_without_loops
 283         }
 284
 285         set nshort [file tail [file dirname $test]]/[file tail $test]
 286
 287         foreach flags $option_list {
 288             verbose "Testing $nshort, $flags" 1
 289             dg-test $test $flags ${default-extra-flags}
 290         }
 291     }
 292 }
 293
 294 proc run-many-tests { testcases extra_flags } {
 295     global compiler_vendor
 296     switch $compiler_vendor {
 297       "clang" {
 298         set common "-W -Wall"
 299         set optimizations { "-O0" "-O1" "-O2" "-O3" "-Os" }
 300       }
 301       "gnu" {
 302         set common "-W -Wall -Wno-psabi"
 303         set optimizations { "-O0" "-O2" "-O3" "-Os" "-O2 -fomit-frame-pointer" }
 304       }
 305       default {
 306         # Assume we are using the vendor compiler.
 307         set common ""
 308         set optimizations { "" }
 309       }
 310     }
 311
 312     set targetabis { "" }
 313     if [string match $compiler_vendor "gnu"] {
 314         if { ([istarget "i?86-*-*"] || [istarget "x86_64-*-*"])
 315              && [is-effective-target ia32] && ![istarget "*-*-darwin*"] } {
 316             set targetabis {
 317                 ""
 318                 "-DABI_NUM=FFI_STDCALL -DABI_ATTR=__STDCALL__"
 319                 "-DABI_NUM=FFI_THISCALL -DABI_ATTR=__THISCALL__"
 320                 "-DABI_NUM=FFI_FASTCALL -DABI_ATTR=__FASTCALL__"
 321             }
 322         }
 323     }
 324
 325     set common [ concat $common $extra_flags ]
 326     foreach test $testcases {
 327         set testname [file tail $test]
 328         if [search_for $test "ABI_NUM"] {
 329             set abis $targetabis
 330         } else {
 331             set abis { "" }
 332         }
 333         foreach opt $optimizations {
 334             foreach abi $abis {
 335                 set options [concat $common $opt $abi]
 336                 verbose "Testing $testname, $options" 1
 337                 dg-test $test $options ""
 338             }
 339         }
 340     }
 341 }
 342
 343 # Like check_conditional_xfail, but callable from a dg test.
 344
 345 proc dg-xfail-if { args } {
 346     set args [lreplace $args 0 0]
 347     set selector "target [join [lindex $args 1]]"
 348     if { [dg-process-target $selector] == "S" } {
 349         global compiler_conditional_xfail_data
 350         set compiler_conditional_xfail_data $args
 351     }
 352 }
 353
 354 proc check-flags { args } {
 355
 356     # The args are within another list; pull them out.
 357     set args [lindex $args 0]
 358
 359     # The next two arguments are optional.  If they were not specified,
 360     # use the defaults.
 361     if { [llength $args] == 2 } {
 362         lappend $args [list "*"]
 363     }
 364     if { [llength $args] == 3 } {
 365         lappend $args [list ""]
 366     }
 367
 368     # If the option strings are the defaults, or the same as the
 369     # defaults, there is no need to call check_conditional_xfail to
 370     # compare them to the actual options.
 371     if { [string compare [lindex $args 2] "*"] == 0
 372          && [string compare [lindex $args 3] "" ] == 0 } {
 373         set result 1
 374     } else {
 375         # The target list might be an effective-target keyword, so replace
 376         # the original list with "*-*-*", since we already know it matches.
 377         set result [check_conditional_xfail [lreplace $args 1 1 "*-*-*"]]
 378     }
 379
 380     return $result
 381 }
 382
 383 proc dg-skip-if { args } {
 384     # Verify the number of arguments.  The last two are optional.
 385     set args [lreplace $args 0 0]
 386     if { [llength $args] < 2 || [llength $args] > 4 } {
 387         error "dg-skip-if 2: need 2, 3, or 4 arguments"
 388     }
 389
 390     # Don't bother if we're already skipping the test.
 391     upvar dg-do-what dg-do-what
 392     if { [lindex ${dg-do-what} 1] == "N" } {
 393       return
 394     }
 395
 396     set selector [list target [lindex $args 1]]
 397     if { [dg-process-target $selector] == "S" } {
 398         if [check-flags $args] {
 399             upvar dg-do-what dg-do-what
 400             set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
 401         }
 402     }
 403 }
 404
 405 # We need to make sure that additional_files and additional_sources
 406 # are both cleared out after every test.  It is not enough to clear
 407 # them out *before* the next test run because gcc-target-compile gets
 408 # run directly from some .exp files (outside of any test).  (Those
 409 # uses should eventually be eliminated.)
 410
 411 # Because the DG framework doesn't provide a hook that is run at the
 412 # end of a test, we must replace dg-test with a wrapper.
 413
 414 if { [info procs saved-dg-test] == [list] } {
 415     rename dg-test saved-dg-test
 416
 417     proc dg-test { args } {
 418         global additional_files
 419         global additional_sources
 420         global errorInfo
 421
 422         if { [ catch { eval saved-dg-test $args } errmsg ] } {
 423             set saved_info $errorInfo
 424             set additional_files ""
 425             set additional_sources ""
 426             error $errmsg $saved_info
 427         }
 428         set additional_files ""
 429         set additional_sources ""
 430     }
 431 }
 432
 433 # Local Variables:
 434 # tcl-indent-level:4
 435 # End: