1# Copyright (C) 1997-2013 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 GCC; see the file COPYING3. If not see 15# <http://www.gnu.org/licenses/>. 16 17# DejaGnu's dg-test defines extra flags that are used to compile a test. 18# Access them for directives that need to examine all options that are 19# used for a test, including checks for non-cached effective targets. 20# We don't know how far up the call chain it is but we know we'll hit 21# it eventually, and that we're at least 3 calls down. 22 23proc current_compiler_flags { } { 24 set frames 2 25 while { ![info exists flags1] } { 26 set frames [expr $frames + 1] 27 upvar $frames dg-extra-tool-flags flags1 28 } 29 upvar $frames tool_flags flags2 30 return "$flags1 $flags2" 31} 32 33# DejaGnu's dg-test defines a test name that includes torture options 34# which is used in most pass/fail messages. Grab a copy of it. 35 36proc testname-for-summary { } { 37 global testname_with_flags 38 39 # A variable called "name" is too generic, so identify dg-test by 40 # the existence of dg-extra-tool-flags. 41 if ![info exists testname_with_flags] { 42 set frames 2 43 while { ![info exists flags] } { 44 set frames [expr $frames + 1] 45 upvar $frames dg-extra-tool-flags flags 46 } 47 48 # We've got the stack level for dg-test; get the variable we want. 49 upvar $frames name name 50 set testname_with_flags $name 51 52 # If there are flags, add an extra space to improve readability of 53 # the test summary. 54 if { [llength $testname_with_flags] > 1 } { 55 set testname_with_flags "$testname_with_flags " 56 } 57 } 58 return "$testname_with_flags" 59} 60 61# If this target does not support weak symbols, skip this test. 62 63proc dg-require-weak { args } { 64 set weak_available [ check_weak_available ] 65 if { $weak_available == -1 } { 66 upvar name name 67 unresolved "$name" 68 } 69 if { $weak_available != 1 } { 70 upvar dg-do-what dg-do-what 71 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 72 } 73} 74 75# If this target does not support overriding weak symbols, skip this 76# test. 77 78proc dg-require-weak-override { args } { 79 set weak_override_available [ check_weak_override_available ] 80 if { $weak_override_available == -1 } { 81 upvar name name 82 unresolved "$name" 83 } 84 if { $weak_override_available != 1 } { 85 upvar dg-do-what dg-do-what 86 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 87 } 88} 89 90# If this target does not support the "visibility" attribute, skip this 91# test. 92 93proc dg-require-visibility { args } { 94 set visibility_available [ check_visibility_available [lindex $args 1 ] ] 95 if { $visibility_available == -1 } { 96 upvar name name 97 unresolved "$name" 98 } 99 if { $visibility_available != 1 } { 100 upvar dg-do-what dg-do-what 101 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 102 } 103} 104 105# If this target does not support the "alias" attribute, skip this 106# test. 107 108proc dg-require-alias { args } { 109 set alias_available [ check_alias_available ] 110 if { $alias_available == -1 } { 111 upvar name name 112 unresolved "$name" 113 } 114 if { $alias_available < 2 } { 115 upvar dg-do-what dg-do-what 116 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 117 } 118} 119 120# If this target does not support the "ifunc" attribute, skip this 121# test. 122 123proc dg-require-ifunc { args } { 124 if { ![ check_ifunc_available ] } { 125 upvar dg-do-what dg-do-what 126 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 127 } 128} 129 130# If this target's linker does not support the --gc-sections flag, 131# skip this test. 132 133proc dg-require-gc-sections { args } { 134 if { ![ check_gc_sections_available ] } { 135 upvar dg-do-what dg-do-what 136 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 137 } 138} 139 140# If this target does not support profiling, skip this test. 141 142proc dg-require-profiling { args } { 143 if { ![ check_profiling_available [lindex $args 1] ] } { 144 upvar dg-do-what dg-do-what 145 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 146 } 147} 148 149# If this target does not support DLL attributes skip this test. 150 151proc dg-require-dll { args } { 152 # As a special case, the mcore-*-elf supports these attributes. 153 # All Symbian OS targets also support these attributes. 154 if { [istarget mcore-*-elf] 155 || [istarget *-*-symbianelf] } { 156 return 157 } 158 # PE/COFF targets support dllimport/dllexport. 159 if { [gcc_target_object_format] == "pe" } { 160 return 161 } 162 163 upvar dg-do-what dg-do-what 164 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 165} 166 167# If this host does not support an ASCII locale, skip this test. 168 169proc dg-require-ascii-locale { args } { 170 if { ![ check_ascii_locale_available] } { 171 upvar dg-do-what dg-do-what 172 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 173 } 174} 175 176proc dg-require-iconv { args } { 177 if { ![ check_iconv_available ${args} ] } { 178 upvar dg-do-what dg-do-what 179 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 180 } 181} 182 183# If this target does not support named sections skip this test. 184 185proc dg-require-named-sections { args } { 186 if { ![ check_named_sections_available ] } { 187 upvar dg-do-what dg-do-what 188 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 189 } 190} 191 192# If the target does not match the required effective target, skip this test. 193# Only apply this if the optional selector matches. 194 195proc dg-require-effective-target { args } { 196 set args [lreplace $args 0 0] 197 # Verify the number of arguments. The last is optional. 198 if { [llength $args] < 1 || [llength $args] > 2 } { 199 error "syntax error, need a single effective-target keyword with optional selector" 200 } 201 202 # Don't bother if we're already skipping the test. 203 upvar dg-do-what dg-do-what 204 if { [lindex ${dg-do-what} 1] == "N" } { 205 return 206 } 207 208 # Evaluate selector if present. 209 if { [llength $args] == 2 } { 210 switch [dg-process-target-1 [lindex $args 1]] { 211 "S" { } 212 "N" { return } 213 } 214 } 215 216 if { ![is-effective-target [lindex $args 0]] } { 217 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 218 } 219} 220 221# If this target does not have fork, skip this test. 222 223proc dg-require-fork { args } { 224 if { ![check_fork_available] } { 225 upvar dg-do-what dg-do-what 226 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 227 } 228} 229 230# If this target does not have mkfifo, skip this test. 231 232proc dg-require-mkfifo { args } { 233 if { ![check_mkfifo_available] } { 234 upvar dg-do-what dg-do-what 235 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 236 } 237} 238 239# If this target does not use __cxa_atexit, skip this test. 240 241proc dg-require-cxa-atexit { args } { 242 if { ![ check_cxa_atexit_available ] } { 243 upvar dg-do-what dg-do-what 244 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 245 } 246} 247 248# If the host is remote rather than the same as the build system, skip 249# this test. Some tests are incompatible with DejaGnu's handling of 250# remote hosts, which involves copying the source file to the host and 251# compiling it with a relative path and "-o a.out". 252 253proc dg-require-host-local { args } { 254 if [ is_remote host ] { 255 upvar dg-do-what dg-do-what 256 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 257 } 258} 259 260proc dg-require-linker-plugin { args } { 261 set linker_plugin_available [ check_linker_plugin_available ] 262 if { $linker_plugin_available == 0 } { 263 upvar dg-do-what dg-do-what 264 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 265 } 266} 267 268# Add any target-specific flags needed for accessing the given list 269# of features. This must come after all dg-options. 270 271proc dg-add-options { args } { 272 upvar dg-extra-tool-flags extra-tool-flags 273 274 foreach arg [lrange $args 1 end] { 275 if { [info procs add_options_for_$arg] != "" } { 276 set extra-tool-flags \ 277 [eval [list add_options_for_$arg ${extra-tool-flags}]] 278 } else { 279 error "Unrecognized option type: $arg" 280 } 281 } 282} 283 284# Compare flags for a test directive against flags that will be used to 285# compile the test: multilib flags, flags for torture options, and either 286# the default flags for this group of tests or flags specified with a 287# previous dg-options directive. 288 289proc check-flags { args } { 290 global compiler_flags 291 global TOOL_OPTIONS 292 global TEST_ALWAYS_FLAGS 293 294 # The args are within another list; pull them out. 295 set args [lindex $args 0] 296 297 # Start the list with a dummy tool name so the list will match "*" 298 # if there are no flags. 299 set compiler_flags " toolname " 300 append compiler_flags [current_compiler_flags] 301 # If running a subset of the test suite, $TOOL_OPTIONS may not exist. 302 catch {append compiler_flags " $TOOL_OPTIONS "} 303 # If running a subset of the test suite, $TEST_ALWAYS_FLAGS may not exist. 304 catch {append compiler_flags " $TEST_ALWAYS_FLAGS "} 305 set dest [target_info name] 306 if [board_info $dest exists cflags] { 307 append compiler_flags "[board_info $dest cflags] " 308 } 309 if [board_info $dest exists multilib_flags] { 310 append compiler_flags "[board_info $dest multilib_flags] " 311 } 312 313 # The next two arguments are optional. If they were not specified, 314 # use the defaults. 315 if { [llength $args] == 2 } { 316 lappend $args [list "*"] 317 } 318 if { [llength $args] == 3 } { 319 lappend $args [list ""] 320 } 321 322 # If the option strings are the defaults, or the same as the 323 # defaults, there is no need to call check_conditional_xfail to 324 # compare them to the actual options. 325 if { [string compare [lindex $args 2] "*"] == 0 326 && [string compare [lindex $args 3] "" ] == 0 } { 327 set result 1 328 } else { 329 # The target list might be an effective-target keyword, so replace 330 # the original list with "*-*-*", since we already know it matches. 331 set result [check_conditional_xfail [lreplace $args 1 1 "*-*-*"]] 332 } 333 334 # Any value in this variable was left over from an earlier test. 335 set compiler_flags "" 336 337 return $result 338} 339 340# Skip the test (report it as UNSUPPORTED) if the target list and 341# included flags are matched and the excluded flags are not matched. 342# 343# The first argument is the line number of the dg-skip-if directive 344# within the test file. Remaining arguments are as for xfail lists: 345# message { targets } { include } { exclude } 346# 347# This tests against multilib flags plus either the default flags for this 348# group of tests or flags specified with a previous dg-options command. 349 350proc dg-skip-if { args } { 351 # Verify the number of arguments. The last two are optional. 352 set args [lreplace $args 0 0] 353 if { [llength $args] < 2 || [llength $args] > 4 } { 354 error "dg-skip-if 2: need 2, 3, or 4 arguments" 355 } 356 357 # Don't bother if we're already skipping the test. 358 upvar dg-do-what dg-do-what 359 if { [lindex ${dg-do-what} 1] == "N" } { 360 return 361 } 362 363 set selector [list target [lindex $args 1]] 364 if { [dg-process-target-1 $selector] == "S" } { 365 if [check-flags $args] { 366 upvar dg-do-what dg-do-what 367 set dg-do-what [list [lindex ${dg-do-what} 0] "N" "P"] 368 } 369 } 370} 371 372# Like check_conditional_xfail, but callable from a dg test. 373 374proc dg-xfail-if { args } { 375 # Verify the number of arguments. The last three are optional. 376 set args [lreplace $args 0 0] 377 if { [llength $args] < 2 || [llength $args] > 4 } { 378 error "dg-xfail-if: need 2, 3, or 4 arguments" 379 } 380 381 # Don't change anything if we're already skipping the test. 382 upvar dg-do-what dg-do-what 383 if { [lindex ${dg-do-what} 1] == "N" } { 384 return 385 } 386 387 set selector [list target [lindex $args 1]] 388 if { [dg-process-target-1 $selector] == "S" } { 389 global compiler_conditional_xfail_data 390 391 # The target list might be an effective-target keyword. Replace 392 # the original list with "*-*-*", since we already know it matches. 393 set args [lreplace $args 1 1 "*-*-*"] 394 395 # Supply default values for unspecified optional arguments. 396 if { [llength $args] == 2 } { 397 lappend $args [list "*"] 398 } 399 if { [llength $args] == 3 } { 400 lappend $args [list ""] 401 } 402 403 set compiler_conditional_xfail_data $args 404 } 405} 406 407# Like dg-xfail-if but for the execute step. 408 409proc dg-xfail-run-if { args } { 410 # Verify the number of arguments. The last two are optional. 411 set args [lreplace $args 0 0] 412 if { [llength $args] < 2 || [llength $args] > 4 } { 413 error "dg-xfail-run-if: need 2, 3, or 4 arguments" 414 } 415 416 # Don't bother if we're already skipping the test. 417 upvar dg-do-what dg-do-what 418 if { [lindex ${dg-do-what} 1] == "N" } { 419 return 420 } 421 422 set selector [list target [lindex $args 1]] 423 if { [dg-process-target-1 $selector] == "S" } { 424 if [check-flags $args] { 425 upvar dg-do-what dg-do-what 426 set dg-do-what [list [lindex ${dg-do-what} 0] "S" "F"] 427 } 428 } 429} 430 431# Record whether the program is expected to return a nonzero status. 432 433set shouldfail 0 434 435proc dg-shouldfail { args } { 436 # Don't bother if we're already skipping the test. 437 upvar dg-do-what dg-do-what 438 if { [lindex ${dg-do-what} 1] == "N" } { 439 return 440 } 441 442 global shouldfail 443 444 set args [lreplace $args 0 0] 445 if { [llength $args] > 1 } { 446 set selector [list target [lindex $args 1]] 447 if { [dg-process-target-1 $selector] == "S" } { 448 # The target matches, now check the flags. 449 if [check-flags $args] { 450 set shouldfail 1 451 } 452 } 453 } else { 454 set shouldfail 1 455 } 456} 457 458# Intercept the call to the DejaGnu version of dg-process-target to 459# support use of an effective-target keyword in place of a list of 460# target triplets to xfail or skip a test. 461# 462# The argument to dg-process-target is the keyword "target" or "xfail" 463# followed by a selector: 464# target-triplet-1 ... 465# effective-target-keyword 466# selector-expression 467# 468# For a target list the result is "S" if the target is selected, "N" otherwise. 469# For an xfail list the result is "F" if the target is affected, "P" otherwise. 470 471# In contexts that allow either "target" or "xfail" the argument can be 472# target selector1 xfail selector2 473# which returns "N" if selector1 is not selected, otherwise the result of 474# "xfail selector2". 475# 476# A selector expression appears within curly braces and uses a single logical 477# operator: !, &&, or ||. An operand is another selector expression, an 478# effective-target keyword, or a list of target triplets within quotes or 479# curly braces. 480 481if { [info procs saved-dg-process-target] == [list] } { 482 rename dg-process-target saved-dg-process-target 483 484 # Evaluate an operand within a selector expression. 485 proc selector_opd { op } { 486 set selector "target" 487 lappend selector $op 488 set answer [ expr { [dg-process-target $selector] == "S" } ] 489 verbose "selector_opd: `$op' $answer" 2 490 return $answer 491 } 492 493 # Evaluate a target triplet list within a selector expression. 494 # Unlike other operands, this needs to be expanded from a list to 495 # the same string as "target". 496 proc selector_list { op } { 497 set selector "target [join $op]" 498 set answer [ expr { [dg-process-target $selector] == "S" } ] 499 verbose "selector_list: `$op' $answer" 2 500 return $answer 501 } 502 503 # Evaluate a selector expression. 504 proc selector_expression { exp } { 505 if { [llength $exp] == 2 } { 506 if [string match "!" [lindex $exp 0]] { 507 set op1 [lindex $exp 1] 508 set answer [expr { ! [selector_opd $op1] }] 509 } else { 510 # Assume it's a list of target triplets. 511 set answer [selector_list $exp] 512 } 513 } elseif { [llength $exp] == 3 } { 514 set op1 [lindex $exp 0] 515 set opr [lindex $exp 1] 516 set op2 [lindex $exp 2] 517 if [string match "&&" $opr] { 518 set answer [expr { [selector_opd $op1] && [selector_opd $op2] }] 519 } elseif [string match "||" $opr] { 520 set answer [expr { [selector_opd $op1] || [selector_opd $op2] }] 521 } else { 522 # Assume it's a list of target triplets. 523 set answer [selector_list $exp] 524 } 525 } else { 526 # Assume it's a list of target triplets. 527 set answer [selector_list $exp] 528 } 529 530 verbose "selector_expression: `$exp' $answer" 2 531 return $answer 532 } 533 534 # Evaluate "target selector" or "xfail selector". 535 536 proc dg-process-target-1 { args } { 537 verbose "dg-process-target-1: `$args'" 2 538 539 # Extract the 'what' keyword from the argument list. 540 set selector [string trim [lindex $args 0]] 541 if [regexp "^xfail " $selector] { 542 set what "xfail" 543 } elseif [regexp "^target " $selector] { 544 set what "target" 545 } else { 546 error "syntax error in target selector \"$selector\"" 547 } 548 549 # Extract the rest of the list, which might be a keyword. 550 regsub "^${what}" $selector "" rest 551 set rest [string trim $rest] 552 553 if [is-effective-target-keyword $rest] { 554 # The selector is an effective target keyword. 555 if [is-effective-target $rest] { 556 return [expr { $what == "xfail" ? "F" : "S" }] 557 } else { 558 return [expr { $what == "xfail" ? "P" : "N" }] 559 } 560 } 561 562 if [string match "{*}" $rest] { 563 if [selector_expression [lindex $rest 0]] { 564 return [expr { $what == "xfail" ? "F" : "S" }] 565 } else { 566 return [expr { $what == "xfail" ? "P" : "N" }] 567 } 568 } 569 570 # The selector is not an effective-target keyword, so process 571 # the list of target triplets. 572 return [saved-dg-process-target $selector] 573 } 574 575 # Intercept calls to the DejaGnu function. In addition to 576 # processing "target selector" or "xfail selector", handle 577 # "target selector1 xfail selector2". 578 579 proc dg-process-target { args } { 580 verbose "replacement dg-process-target: `$args'" 2 581 582 set selector [string trim [lindex $args 0]] 583 584 # If the argument list contains both 'target' and 'xfail', 585 # process 'target' and, if that succeeds, process 'xfail'. 586 if [regexp "^target .* xfail .*" $selector] { 587 set xfail_index [string first "xfail" $selector] 588 set xfail_selector [string range $selector $xfail_index end] 589 set target_selector [string range $selector 0 [expr $xfail_index-1]] 590 set target_selector [string trim $target_selector] 591 if { [dg-process-target-1 $target_selector] == "N" } { 592 return "N" 593 } 594 return [dg-process-target-1 $xfail_selector] 595 596 } 597 return [dg-process-target-1 $selector] 598 } 599} 600