gcc/testsuite/lib/target-supports-dg.exp

   1 #   Copyright (C) 1997, 1999, 2000, 2003, 2004, 2005, 2007
   2 #   Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with GCC; see the file COPYING3.  If not see
  16 # <http://www.gnu.org/licenses/>.
  17
  18 # If this target does not support weak symbols, skip this test.
  19
  20 proc dg-require-weak { args } {
  21     set weak_available [ check_weak_available ]
  22     if { $weak_available == -1 } {
  23         upvar name name
  24         unresolved "$name"
  25     }
  26     if { $weak_available != 1 } {
  27         upvar dg-do-what dg-do-what
  28         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
  29     }
  30 }
  31
  32 # If this target does not support the "visibility" attribute, skip this
  33 # test.
  34
  35 proc dg-require-visibility { args } {
  36     set visibility_available [ check_visibility_available [lindex $args 1 ] ]
  37     if { $visibility_available == -1 } {
  38         upvar name name
  39         unresolved "$name"
  40     }
  41     if { $visibility_available != 1 } {
  42         upvar dg-do-what dg-do-what
  43         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
  44     }
  45 }
  46
  47 # If this target does not support the "alias" attribute, skip this
  48 # test.
  49
  50 proc dg-require-alias { args } {
  51     set alias_available [ check_alias_available ]
  52     if { $alias_available == -1 } {
  53         upvar name name
  54         unresolved "$name"
  55     }
  56     if { $alias_available < 2 } {
  57         upvar dg-do-what dg-do-what
  58         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
  59     }
  60 }
  61
  62 # If this target's linker does not support the --gc-sections flag,
  63 # skip this test.
  64
  65 proc dg-require-gc-sections { args } {
  66     if { ![ check_gc_sections_available ] } {
  67         upvar dg-do-what dg-do-what
  68         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
  69     }
  70 }
  71
  72 # If this target does not support profiling, skip this test.
  73
  74 proc dg-require-profiling { args } {
  75     if { ![ check_profiling_available ${args} ] } {
  76         upvar dg-do-what dg-do-what
  77         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
  78     }
  79 }
  80
  81 # If this target does not support DLL attributes skip this test.
  82
  83 proc dg-require-dll { args } {
  84     global target_triplet
  85     # As a special case, the mcore-*-elf supports these attributes.
  86     # All Symbian OS targets also support these attributes.
  87     if { [string match "mcore-*-elf" $target_triplet]
  88          || [string match "*-*-symbianelf" $target_triplet]} {
  89         return
  90     }
  91     # PE/COFF targets support dllimport/dllexport.
  92     if { [gcc_target_object_format] == "pe" } {
  93         return
  94     }
  95
  96     upvar dg-do-what dg-do-what
  97     set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
  98 }
  99
 100 proc dg-require-iconv { args } {
 101     if { ![ check_iconv_available ${args} ] } {
 102         upvar dg-do-what dg-do-what
 103         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
 104     }
 105 }
 106
 107 # If this target does not support named sections skip this test.
 108
 109 proc dg-require-named-sections { args } {
 110     if { ![ check_named_sections_available ] } {
 111         upvar dg-do-what dg-do-what
 112         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
 113     }
 114 }
 115
 116 # If the target does not match the required effective target, skip this test.
 117
 118 proc dg-require-effective-target { args } {
 119     set args [lreplace $args 0 0]
 120     if { ![is-effective-target [lindex $args 0]] } {
 121         upvar dg-do-what dg-do-what
 122         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
 123     }
 124 }
 125
 126 # If this target does not have fork, skip this test.
 127
 128 proc dg-require-fork { args } {
 129     if { ![check_fork_available] } {
 130         upvar dg-do-what dg-do-what
 131         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
 132     }
 133 }
 134
 135 # If this target does not have mkfifo, skip this test.
 136
 137 proc dg-require-mkfifo { args } {
 138     if { ![check_mkfifo_available] } {
 139         upvar dg-do-what dg-do-what
 140         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
 141     }
 142 }
 143
 144 # If this target does not use __cxa_atexit, skip this test.
 145
 146 proc dg-require-cxa-atexit { args } {
 147     if { ![ check_cxa_atexit_available ] } {
 148         upvar dg-do-what dg-do-what
 149         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
 150     }
 151 }
 152
 153 # If the host is remote rather than the same as the build system, skip
 154 # this test.  Some tests are incompatible with DejaGnu's handling of
 155 # remote hosts, which involves copying the source file to the host and
 156 # compiling it with a relative path and "-o a.out".
 157
 158 proc dg-require-host-local { args } {
 159     if [ is_remote host ] {
 160         upvar dg-do-what dg-do-what
 161         set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
 162     }
 163 }
 164
 165 # Add any target-specific flags needed for accessing the given list
 166 # of features.  This must come after all dg-options.
 167
 168 proc dg-add-options { args } {
 169     upvar dg-extra-tool-flags extra-tool-flags
 170
 171     foreach arg [lrange $args 1 end] {
 172         if { [info procs add_options_for_$arg] != "" } {
 173             set extra-tool-flags \
 174                 [eval [list add_options_for_$arg ${extra-tool-flags}]]
 175         } else {
 176             error "Unrecognized option type: $arg"
 177         }
 178     }
 179 }
 180
 181 # Check the flags with which the test will be run against options in
 182 # a test directive that will skip or xfail that test.  The DejaGnu proc
 183 # check_conditional_xfail will look at the options in compiler_flags, so
 184 # set that up for this test based on flags we know about.
 185
 186 proc check_test_flags { args } {
 187     global compiler_flags
 188     upvar 2 dg-extra-tool-flags extra_tool_flags
 189
 190     # Pull the args out of the enclosing list.
 191     set args [lindex $args 0]
 192
 193     # Start the list with a dummy tool name so the list will match "*"
 194     # if there are no flags.
 195     set compiler_flags " toolname "
 196     append compiler_flags $extra_tool_flags
 197     set dest [target_info name]
 198     if [board_info $dest exists multilib_flags] {
 199         append compiler_flags "[board_info $dest multilib_flags] "
 200     }
 201
 202     set answer [check_conditional_xfail $args]
 203
 204     # Any value in this variable originally was left over from an earlier test.
 205     set compiler_flags ""
 206
 207     verbose "check_test_flags: $args $answer" 2
 208     return $answer
 209 }
 210
 211 # Compare flags for a test directive against flags that will be used to
 212 # compile the test: multilib flags, flags for torture options, and either
 213 # the default flags for this group of tests or flags specified with a
 214 # previous dg-options directive.
 215
 216 proc check-flags { args } {
 217     global compiler_flags
 218     global TOOL_OPTIONS
 219     # These variables are from DejaGnu's dg-test.
 220     upvar dg-extra-tool-flags extra_tool_flags
 221     upvar tool_flags tool_flags
 222
 223     # The args are within another list; pull them out.
 224     set args [lindex $args 0]
 225
 226     # Start the list with a dummy tool name so the list will match "*"
 227     # if there are no flags.
 228     set compiler_flags " toolname "
 229     append compiler_flags $extra_tool_flags
 230     append compiler_flags $tool_flags
 231     # If running a subset of the test suite, $TOOL_OPTIONS may not exist.
 232     catch {append compiler_flags " $TOOL_OPTIONS "}
 233     set dest [target_info name]
 234     if [board_info $dest exists multilib_flags] {
 235         append compiler_flags "[board_info $dest multilib_flags] "
 236     }
 237
 238     # The target list might be an effective-target keyword, so replace
 239     # the original list with "*-*-*", since we already know it matches.
 240     set result [check_conditional_xfail [lreplace $args 1 1 "*-*-*"]]
 241
 242     # Any value in this variable was left over from an earlier test.
 243     set compiler_flags ""
 244
 245     return $result
 246 }
 247
 248 # Skip the test (report it as UNSUPPORTED) if the target list and
 249 # included flags are matched and the excluded flags are not matched.
 250 #
 251 # The first argument is the line number of the dg-skip-if directive
 252 # within the test file.   Remaining arguments are as for xfail lists:
 253 # message { targets } { include } { exclude }
 254 #
 255 # This tests against multilib flags plus either the default flags for this
 256 # group of tests or flags specified with a previous dg-options command.
 257
 258 proc dg-skip-if { args } {
 259     # Don't bother if we're already skipping the test.
 260     upvar dg-do-what dg-do-what
 261     if { [lindex ${dg-do-what} 1] == "N" } {
 262       return
 263     }
 264
 265     set args [lreplace $args 0 0]
 266
 267     set selector [list target [lindex $args 1]]
 268     if { [dg-process-target $selector] == "S" } {
 269         # These are defined in DejaGnu's dg-test, needed by check-flags.
 270         upvar dg-extra-tool-flags dg-extra-tool-flags
 271         upvar tool_flags tool_flags
 272
 273         if [check-flags $args] {
 274             upvar dg-do-what dg-do-what
 275             set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"]
 276         }
 277     }
 278 }
 279
 280 # Like check_conditional_xfail, but callable from a dg test.
 281
 282 proc dg-xfail-if { args } {
 283     # Don't change anything if we're already skipping the test.
 284     upvar dg-do-what dg-do-what
 285     if { [lindex ${dg-do-what} 1] == "N" } {
 286       return
 287     }
 288
 289     set args [lreplace $args 0 0]
 290     set selector [list target [lindex $args 1]]
 291     if { [dg-process-target $selector] == "S" } {
 292         global compiler_conditional_xfail_data
 293         set compiler_conditional_xfail_data [lreplace $args 1 1 "*-*-*"]
 294     }
 295 }
 296
 297 # Like dg-xfail-if but for the execute step.
 298
 299 proc dg-xfail-run-if { args } {
 300     # Don't bother if we're already skipping the test.
 301     upvar dg-do-what dg-do-what
 302     if { [lindex ${dg-do-what} 1] == "N" } {
 303       return
 304     }
 305
 306     set args [lreplace $args 0 0]
 307
 308     set selector [list target [lindex $args 1]]
 309     if { [dg-process-target $selector] == "S" } {
 310         # These are defined in DejaGnu's dg-test, needed by check-flags.
 311         upvar dg-extra-tool-flags dg-extra-tool-flags
 312         upvar tool_flags tool_flags
 313
 314         if [check-flags $args] {
 315             upvar dg-do-what dg-do-what
 316             set dg-do-what [list [lindex ${dg-do-what} 0] "S" "F"]
 317         }
 318     }
 319 }
 320
 321 # Record whether the program is expected to return a nonzero status.
 322
 323 set shouldfail 0
 324
 325 proc dg-shouldfail { args } {
 326     # Don't bother if we're already skipping the test.
 327     upvar dg-do-what dg-do-what
 328     if { [lindex ${dg-do-what} 1] == "N" } {
 329       return
 330     }
 331
 332     global shouldfail
 333
 334     set args [lreplace $args 0 0]
 335     if { [llength $args] > 1 } {
 336         set selector [list target [lindex $args 1]]
 337         if { [dg-process-target $selector] == "S" } {
 338             # The target matches, now check the flags.  These variables
 339             # are defined in DejaGnu's dg-test, needed by check-flags.
 340             upvar dg-extra-tool-flags dg-extra-tool-flags
 341             upvar tool_flags tool_flags
 342
 343             if [check-flags $args] {
 344                 set shouldfail 1
 345             }
 346         }
 347     } else {
 348         set shouldfail 1
 349     }
 350 }
 351
 352 # Intercept the call to the DejaGnu version of dg-process-target to
 353 # support use of an effective-target keyword in place of a list of
 354 # target triplets to xfail or skip a test.
 355 #
 356 # selector is one of:
 357 #    xfail target-triplet-1 ...
 358 #    xfail effective-target-keyword
 359 #    xfail selector-expression
 360 #    target target-triplet-1 ...
 361 #    target effective-target-keyword
 362 #    target selector-expression
 363 #
 364 # For a target list the result is "S" if the target is selected, "N" otherwise.
 365 # For an xfail list the result is "F" if the target is affected, "P" otherwise.
 366 #
 367 # A selector expression appears within curly braces and uses a single logical
 368 # operator: !, &&, or ||.  An operand is another selector expression, an
 369 # effective-target keyword, or a list of target triplets within quotes or
 370 # curly braces.
 371
 372 if { [info procs saved-dg-process-target] == [list] } {
 373     rename dg-process-target saved-dg-process-target
 374
 375     # Evaluate an operand within a selector expression.
 376     proc selector_opd { op } {
 377         set selector "target"
 378         lappend selector $op
 379         set answer [ expr { [dg-process-target $selector] == "S" } ]
 380         verbose "selector_opd: `$op' $answer" 2
 381         return $answer
 382     }
 383
 384     # Evaluate a target triplet list within a selector expression.
 385     # Unlike other operands, this needs to be expanded from a list to
 386     # the same string as "target".
 387     proc selector_list { op } {
 388         set selector "target [join $op]"
 389         set answer [ expr { [dg-process-target $selector] == "S" } ]
 390         verbose "selector_list: `$op' $answer" 2
 391         return $answer
 392     }
 393
 394     # Evaluate a selector expression.
 395     proc selector_expression { exp } {
 396         if { [llength $exp] == 2 } {
 397             if [string match "!" [lindex $exp 0]] {
 398                 set op1 [lindex $exp 1]
 399                 set answer [expr { ! [selector_opd $op1] }]
 400             } else {
 401                 # Assume it's a list of target triplets.
 402                 set answer [selector_list $exp]
 403             }
 404         } elseif { [llength $exp] == 3 } {
 405             set op1 [lindex $exp 0]
 406             set opr [lindex $exp 1]
 407             set op2 [lindex $exp 2]
 408             if [string match "&&" $opr] {
 409                 set answer [expr { [selector_opd $op1] && [selector_opd $op2] }]
 410             } elseif [string match "||" $opr] {
 411                 set answer [expr { [selector_opd $op1] || [selector_opd $op2] }]
 412             } else {
 413                 # Assume it's a list of target triplets.
 414                 set answer [selector_list $exp]
 415             }
 416         } else {
 417             # Assume it's a list of target triplets.
 418             set answer [selector_list $exp]
 419         }
 420
 421         verbose "selector_expression: `$exp' $answer" 2
 422         return $answer
 423     }
 424
 425     proc dg-process-target { args } {
 426         verbose "replacement dg-process-target: `$args'" 2
 427
 428         # Extract the 'what' keyword from the argument list.
 429         set selector [string trim [lindex $args 0]]
 430         if [regexp "^xfail " $selector] {
 431             set what "xfail"
 432         } elseif [regexp "^target " $selector] {
 433             set what "target"
 434         } else {
 435             error "syntax error in target selector \"$selector\""
 436         }
 437
 438         # Extract the rest of the list, which might be a keyword.
 439         regsub "^${what}" $selector "" rest
 440         set rest [string trim $rest]
 441
 442         if [is-effective-target-keyword $rest] {
 443             # The selector is an effective target keyword.
 444             if [is-effective-target $rest] {
 445                 return [expr { $what == "xfail" ? "F" : "S" }]
 446             } else {
 447                 return [expr { $what == "xfail" ? "P" : "N" }]
 448             }
 449         }
 450
 451         if [string match "{*}" $rest] {
 452             if [selector_expression [lindex $rest 0]] {
 453                 return [expr { $what == "xfail" ? "F" : "S" }]
 454             } else {
 455                 return [expr { $what == "xfail" ? "P" : "N" }]
 456             }
 457         }
 458
 459         # The selector is not an effective-target keyword, so process
 460         # the list of target triplets.
 461         return [saved-dg-process-target $selector]
 462     }
 463 }