| 1 | # Support routines for LD testsuite. |
| 2 | # Copyright 1994-2013 Free Software Foundation, Inc. |
| 3 | # |
| 4 | # This file is part of the GNU Binutils. |
| 5 | # |
| 6 | # This file is free software; you can redistribute it and/or modify |
| 7 | # it under the terms of the GNU General Public License as published by |
| 8 | # the Free Software Foundation; either version 3 of the License, or |
| 9 | # (at your option) any later version. |
| 10 | # |
| 11 | # This program is distributed in the hope that it will be useful, |
| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | # GNU General Public License for more details. |
| 15 | # |
| 16 | # You should have received a copy of the GNU General Public License |
| 17 | # along with this program; if not, write to the Free Software |
| 18 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 19 | # MA 02110-1301, USA. |
| 20 | |
| 21 | proc load_common_lib { name } { |
| 22 | global srcdir |
| 23 | load_file $srcdir/../../binutils/testsuite/lib/$name |
| 24 | } |
| 25 | |
| 26 | load_common_lib binutils-common.exp |
| 27 | |
| 28 | # Returns 1 if the gcc for the target is at least version MAJOR.MINOR |
| 29 | # Returns 0 otherwise. |
| 30 | # |
| 31 | proc at_least_gcc_version { major minor } { |
| 32 | |
| 33 | if {![info exists CC]} { |
| 34 | set CC [find_gcc] |
| 35 | } |
| 36 | if { $CC == "" } { |
| 37 | return 0 |
| 38 | } |
| 39 | set state [remote_exec host $CC --version] |
| 40 | set tmp "[lindex $state 1]\n" |
| 41 | # Look for (eg) 4.6.1 in the version output. |
| 42 | set ver_re "\[^\\.0-9\]+(\[1-9\]\[0-9\]*)\\.(\[0-9\]+)(?:\\.\[0-9\]+)?" |
| 43 | regexp $ver_re $tmp fred maj min |
| 44 | verbose "gcc version: $tmp" |
| 45 | if { ![info exists maj] || ![info exists min] } then { |
| 46 | perror "can't decipher gcc version number, fix the framework!" |
| 47 | return 0 |
| 48 | } |
| 49 | verbose "major gcc version is $maj, want at least $major" |
| 50 | if { $maj == $major } then { |
| 51 | verbose "minor gcc version is $min, want at least $minor" |
| 52 | return [expr $min >= $minor] |
| 53 | } else { |
| 54 | return [expr $maj > $major] |
| 55 | } |
| 56 | } |
| 57 | |
| 58 | # Extract and print the version number of ld. |
| 59 | # |
| 60 | proc default_ld_version { ld } { |
| 61 | global host_triplet |
| 62 | |
| 63 | if { ![is_remote host] && [which $ld] == 0 } then { |
| 64 | perror "$ld does not exist" |
| 65 | exit 1 |
| 66 | } |
| 67 | |
| 68 | remote_exec host "$ld --version" "" "/dev/null" "ld.version" |
| 69 | remote_upload host "ld.version" |
| 70 | set tmp [prune_warnings [file_contents "ld.version"]] |
| 71 | remote_file build delete "ld.version" |
| 72 | remote_file host delete "ld.version" |
| 73 | |
| 74 | regexp "\[^\n\]* (cygnus-|)(\[-0-9.a-zA-Z-\]+)\[\r\n\].*" $tmp version cyg number |
| 75 | if [info exists number] then { |
| 76 | clone_output "$ld $number\n" |
| 77 | } |
| 78 | } |
| 79 | |
| 80 | proc run_host_cmd { prog command } { |
| 81 | global link_output |
| 82 | |
| 83 | if { ![is_remote host] && [which "$prog"] == 0 } then { |
| 84 | perror "$prog does not exist" |
| 85 | return 0 |
| 86 | } |
| 87 | |
| 88 | verbose -log "$prog $command" |
| 89 | set status [remote_exec host [concat sh -c [list "$prog $command 2>&1"]] "" "/dev/null" "ld.tmp"] |
| 90 | remote_upload host "ld.tmp" |
| 91 | set link_output [file_contents "ld.tmp"] |
| 92 | regsub "\n$" $link_output "" link_output |
| 93 | if { [lindex $status 0] != 0 && [string match "" $link_output] } then { |
| 94 | append link_output "child process exited abnormally" |
| 95 | } |
| 96 | remote_file build delete ld.tmp |
| 97 | remote_file host delete ld.tmp |
| 98 | |
| 99 | if [string match "" $link_output] then { |
| 100 | return "" |
| 101 | } |
| 102 | |
| 103 | verbose -log "$link_output" |
| 104 | return "$link_output" |
| 105 | } |
| 106 | |
| 107 | proc run_host_cmd_yesno { prog command } { |
| 108 | global exec_output |
| 109 | |
| 110 | set exec_output [prune_warnings [run_host_cmd "$prog" "$command"]] |
| 111 | if [string match "" $exec_output] then { |
| 112 | return 1; |
| 113 | } |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | # Link an object using relocation. |
| 118 | # |
| 119 | proc default_ld_relocate { ld target objects } { |
| 120 | global HOSTING_EMU |
| 121 | |
| 122 | remote_file host delete $target |
| 123 | return [run_host_cmd_yesno "$ld" "$HOSTING_EMU -o $target -r $objects"] |
| 124 | } |
| 125 | |
| 126 | # Check to see if ld is being invoked with a non-endian output format |
| 127 | # |
| 128 | proc is_endian_output_format { object_flags } { |
| 129 | |
| 130 | if {[string match "*-oformat binary*" $object_flags] || \ |
| 131 | [string match "*-oformat ieee*" $object_flags] || \ |
| 132 | [string match "*-oformat ihex*" $object_flags] || \ |
| 133 | [string match "*-oformat netbsd-core*" $object_flags] || \ |
| 134 | [string match "*-oformat srec*" $object_flags] || \ |
| 135 | [string match "*-oformat tekhex*" $object_flags] || \ |
| 136 | [string match "*-oformat trad-core*" $object_flags] } then { |
| 137 | return 0 |
| 138 | } else { |
| 139 | return 1 |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | # Look for big-endian or little-endian switches in the multlib |
| 144 | # options and translate these into a -EB or -EL switch. Note |
| 145 | # we cannot rely upon proc process_multilib_options to do this |
| 146 | # for us because for some targets the compiler does not support |
| 147 | # -EB/-EL but it does support -mbig-endian/-mlittle-endian, and |
| 148 | # the site.exp file will include the switch "-mbig-endian" |
| 149 | # (rather than "big-endian") which is not detected by proc |
| 150 | # process_multilib_options. |
| 151 | # |
| 152 | proc big_or_little_endian {} { |
| 153 | |
| 154 | if [board_info [target_info name] exists multilib_flags] { |
| 155 | set tmp_flags " [board_info [target_info name] multilib_flags]" |
| 156 | |
| 157 | foreach x $tmp_flags { |
| 158 | case $x in { |
| 159 | {*big*endian eb EB -eb -EB -mb -meb} { |
| 160 | set flags " -EB" |
| 161 | return $flags |
| 162 | } |
| 163 | {*little*endian el EL -el -EL -ml -mel} { |
| 164 | set flags " -EL" |
| 165 | return $flags |
| 166 | } |
| 167 | } |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | set flags "" |
| 172 | return $flags |
| 173 | } |
| 174 | |
| 175 | # Link a program using ld. |
| 176 | # |
| 177 | proc default_ld_link { ld target objects } { |
| 178 | global HOSTING_EMU |
| 179 | global HOSTING_CRT0 |
| 180 | global HOSTING_SCRT0 |
| 181 | global HOSTING_LIBS |
| 182 | global HOSTING_SLIBS |
| 183 | global LIBS |
| 184 | global host_triplet |
| 185 | global link_output |
| 186 | global exec_output |
| 187 | |
| 188 | if { [ string match "* -pie *" $objects ] } { |
| 189 | set objs "$HOSTING_SCRT0 $objects" |
| 190 | set libs "$LIBS $HOSTING_SLIBS" |
| 191 | } else { |
| 192 | set objs "$HOSTING_CRT0 $objects" |
| 193 | set libs "$LIBS $HOSTING_LIBS" |
| 194 | } |
| 195 | |
| 196 | if [is_endian_output_format $objects] then { |
| 197 | set flags [big_or_little_endian] |
| 198 | } else { |
| 199 | set flags "" |
| 200 | } |
| 201 | |
| 202 | if [board_info [target_info name] exists ldflags] { |
| 203 | append flags " [board_info [target_info name] ldflags]" |
| 204 | } |
| 205 | |
| 206 | remote_file host delete $target |
| 207 | |
| 208 | return [run_host_cmd_yesno "$ld" "$HOSTING_EMU $flags -o $target $objs $libs"] |
| 209 | } |
| 210 | |
| 211 | # Link a program using ld, without including any libraries. |
| 212 | # |
| 213 | proc default_ld_simple_link { ld target objects } { |
| 214 | global host_triplet |
| 215 | global gcc_ld_flag |
| 216 | global exec_output |
| 217 | |
| 218 | if [is_endian_output_format $objects] then { |
| 219 | set flags [big_or_little_endian] |
| 220 | } else { |
| 221 | set flags "" |
| 222 | } |
| 223 | |
| 224 | if [board_info [target_info name] exists ldflags] { |
| 225 | append flags " [board_info [target_info name] ldflags]" |
| 226 | } |
| 227 | |
| 228 | # If we are compiling with gcc, we want to add gcc_ld_flag to |
| 229 | # flags. Rather than determine this in some complex way, we guess |
| 230 | # based on the name of the compiler. |
| 231 | set ldexe $ld |
| 232 | set ldparm [string first " " $ld] |
| 233 | set ldflags "" |
| 234 | if { $ldparm > 0 } then { |
| 235 | set ldflags [string range $ld $ldparm end] |
| 236 | set ldexe [string range $ld 0 $ldparm] |
| 237 | set ld $ldexe |
| 238 | } |
| 239 | set ldexe [string replace $ldexe 0 [string last "/" $ldexe] ""] |
| 240 | if {[string match "*gcc*" $ldexe] || [string match "*++*" $ldexe]} then { |
| 241 | set ldflags "$gcc_ld_flag $ldflags" |
| 242 | } |
| 243 | |
| 244 | remote_file host delete $target |
| 245 | |
| 246 | set exec_output [run_host_cmd "$ld" "$ldflags $flags -o $target $objects"] |
| 247 | set exec_output [prune_warnings $exec_output] |
| 248 | |
| 249 | # We don't care if we get a warning about a non-existent start |
| 250 | # symbol, since the default linker script might use ENTRY. |
| 251 | regsub -all "(^|\n)(\[^\n\]*: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output |
| 252 | |
| 253 | if [string match "" $exec_output] then { |
| 254 | return 1 |
| 255 | } else { |
| 256 | return 0 |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | # Compile an object using cc. |
| 261 | # |
| 262 | proc default_ld_compile { cc source object } { |
| 263 | global CFLAGS |
| 264 | global CXXFLAGS |
| 265 | global srcdir |
| 266 | global subdir |
| 267 | global host_triplet |
| 268 | global gcc_gas_flag |
| 269 | |
| 270 | set cc_prog $cc |
| 271 | if {[llength $cc_prog] > 1} then { |
| 272 | set cc_prog [lindex $cc_prog 0] |
| 273 | } |
| 274 | if {![is_remote host] && [which $cc_prog] == 0} then { |
| 275 | perror "$cc_prog does not exist" |
| 276 | return 0 |
| 277 | } |
| 278 | |
| 279 | remote_file build delete "$object" |
| 280 | remote_file host delete "$object" |
| 281 | |
| 282 | set flags "-I$srcdir/$subdir" |
| 283 | |
| 284 | # If we are compiling with gcc, we want to add gcc_gas_flag to |
| 285 | # flags. Rather than determine this in some complex way, we guess |
| 286 | # based on the name of the compiler. |
| 287 | set ccexe $cc |
| 288 | set ccparm [string first " " $cc] |
| 289 | set ccflags "" |
| 290 | if { $ccparm > 0 } then { |
| 291 | set ccflags [string range $cc $ccparm end] |
| 292 | set ccexe [string range $cc 0 $ccparm] |
| 293 | set cc $ccexe |
| 294 | } |
| 295 | set ccexe [string replace $ccexe 0 [string last "/" $ccexe] ""] |
| 296 | if {[string match "*gcc*" $ccexe] || [string match "*++*" $ccexe]} then { |
| 297 | set flags "$gcc_gas_flag $flags" |
| 298 | } |
| 299 | |
| 300 | if {[string match "*++*" $ccexe]} { |
| 301 | set flags "$flags $CXXFLAGS" |
| 302 | } else { |
| 303 | set flags "$flags $CFLAGS" |
| 304 | } |
| 305 | |
| 306 | if [board_info [target_info name] exists cflags] { |
| 307 | append flags " [board_info [target_info name] cflags]" |
| 308 | } |
| 309 | |
| 310 | if [board_info [target_info name] exists multilib_flags] { |
| 311 | append flags " [board_info [target_info name] multilib_flags]" |
| 312 | } |
| 313 | |
| 314 | verbose -log "$cc $flags $ccflags -c $source -o $object" |
| 315 | |
| 316 | set status [remote_exec host [concat sh -c [list "$cc $flags $ccflags -c $source -o $object 2>&1"]] "" "/dev/null" "ld.tmp"] |
| 317 | remote_upload host "ld.tmp" |
| 318 | set exec_output [file_contents "ld.tmp"] |
| 319 | remote_file build delete "ld.tmp" |
| 320 | remote_file host delete "ld.tmp" |
| 321 | set exec_output [prune_warnings $exec_output] |
| 322 | if [string match "" $exec_output] then { |
| 323 | if {![file exists $object]} then { |
| 324 | regexp ".*/(\[^/\]*)$" $source all dobj |
| 325 | regsub "\\.c" $dobj ".o" realobj |
| 326 | verbose "looking for $realobj" |
| 327 | if {[remote_file host exists $realobj]} then { |
| 328 | verbose -log "mv $realobj $object" |
| 329 | remote_upload "$realobj" "$object" |
| 330 | } else { |
| 331 | perror "$object not found after compilation" |
| 332 | return 0 |
| 333 | } |
| 334 | } |
| 335 | return 1 |
| 336 | } else { |
| 337 | verbose -log "$exec_output" |
| 338 | perror "$source: compilation failed" |
| 339 | return 0 |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | # Assemble a file. |
| 344 | # |
| 345 | proc default_ld_assemble { as in_flags source object } { |
| 346 | global ASFLAGS |
| 347 | global host_triplet |
| 348 | global srcdir |
| 349 | global subdir |
| 350 | |
| 351 | if ![info exists ASFLAGS] { set ASFLAGS "" } |
| 352 | |
| 353 | set flags "[big_or_little_endian] -I$srcdir/$subdir" |
| 354 | set exec_output [run_host_cmd "$as" "$flags $in_flags $ASFLAGS -o $object $source"] |
| 355 | set exec_output [prune_warnings $exec_output] |
| 356 | if [string match "" $exec_output] then { |
| 357 | return 1 |
| 358 | } else { |
| 359 | perror "$source: assembly failed" |
| 360 | return 0 |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | # Run nm on a file, putting the result in the array nm_output. |
| 365 | # |
| 366 | proc default_ld_nm { nm nmflags object } { |
| 367 | global NMFLAGS |
| 368 | global nm_output |
| 369 | global host_triplet |
| 370 | |
| 371 | if {[info exists nm_output]} { |
| 372 | unset nm_output |
| 373 | } |
| 374 | |
| 375 | if ![info exists NMFLAGS] { set NMFLAGS "" } |
| 376 | |
| 377 | # Ensure consistent sorting of symbols |
| 378 | if {[info exists env(LC_ALL)]} { |
| 379 | set old_lc_all $env(LC_ALL) |
| 380 | } |
| 381 | set env(LC_ALL) "C" |
| 382 | |
| 383 | verbose -log "$nm $NMFLAGS $nmflags $object >tmpdir/nm.out" |
| 384 | |
| 385 | set status [remote_exec host [concat sh -c [list "$nm $NMFLAGS $nmflags $object 2>ld.stderr"]] "" "/dev/null" "tmpdir/nm.out"] |
| 386 | if {[info exists old_lc_all]} { |
| 387 | set env(LC_ALL) $old_lc_all |
| 388 | } else { |
| 389 | unset env(LC_ALL) |
| 390 | } |
| 391 | remote_upload host "ld.stderr" |
| 392 | remote_upload host "tmpdir/nm.out" "tmpdir/nm.out" |
| 393 | set exec_output [prune_warnings [file_contents "ld.stderr"]] |
| 394 | remote_file host delete "ld.stderr" |
| 395 | remote_file build delete "ld.stderr" |
| 396 | if [string match "" $exec_output] then { |
| 397 | set file [open tmpdir/nm.out r] |
| 398 | while { [gets $file line] != -1 } { |
| 399 | verbose "$line" 2 |
| 400 | if [regexp "^(\[0-9a-fA-F\]+) \[a-zA-Z0-9\] \\.*(.+)$" $line whole value name] { |
| 401 | set name [string trimleft $name "_"] |
| 402 | verbose "Setting nm_output($name) to 0x$value" 2 |
| 403 | set nm_output($name) 0x$value |
| 404 | } |
| 405 | } |
| 406 | close $file |
| 407 | return 1 |
| 408 | } else { |
| 409 | verbose -log "$exec_output" |
| 410 | perror "$object: nm failed" |
| 411 | return 0 |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | # Define various symbols needed when not linking against all |
| 416 | # target libs. |
| 417 | proc ld_simple_link_defsyms {} { |
| 418 | |
| 419 | set flags "--defsym __stack_chk_fail=0" |
| 420 | |
| 421 | # ARM targets call __gccmain |
| 422 | if {[istarget arm*-*-*]} { |
| 423 | append flags " --defsym __gccmain=0" |
| 424 | } |
| 425 | |
| 426 | # Windows targets need __main, prefixed with underscore. |
| 427 | if {[istarget *-*-cygwin* ] || [istarget *-*-mingw*]} { |
| 428 | append flags " --defsym ___main=0" |
| 429 | } |
| 430 | |
| 431 | # PowerPC EABI code calls __eabi. |
| 432 | if {[istarget powerpc*-*-eabi*] || [istarget powerpc*-*-rtems*]} { |
| 433 | append flags " --defsym __eabi=0" |
| 434 | } |
| 435 | |
| 436 | # mn10200 code calls __truncsipsi2_d0_d2. |
| 437 | if {[istarget mn10200*-*-*]} then { |
| 438 | append flags " --defsym __truncsipsi2_d0_d2=0" |
| 439 | } |
| 440 | |
| 441 | # m6811/m6812 code has references to soft registers. |
| 442 | if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} { |
| 443 | append flags " --defsym _.frame=0 --defsym _.d1=0 --defsym _.d2=0" |
| 444 | append flags " --defsym _.d3=0 --defsym _.d4=0" |
| 445 | append flags " --defsym _.tmp=0 --defsym _.xy=0 --defsym _.z=0" |
| 446 | } |
| 447 | |
| 448 | # Some OpenBSD targets have ProPolice and reference __guard and |
| 449 | # __stack_smash_handler. |
| 450 | if [istarget *-*-openbsd*] { |
| 451 | append flags " --defsym __guard=0" |
| 452 | append flags " --defsym __stack_smash_handler=0" |
| 453 | } |
| 454 | |
| 455 | return $flags |
| 456 | } |
| 457 | |
| 458 | # run_dump_test FILE (optional:) EXTRA_OPTIONS |
| 459 | # Copied from gas testsuite, tweaked and further extended. |
| 460 | # |
| 461 | # Assemble a .s file, then run some utility on it and check the output. |
| 462 | # |
| 463 | # There should be an assembly language file named FILE.s in the test |
| 464 | # suite directory, and a pattern file called FILE.d. `run_dump_test' |
| 465 | # will assemble FILE.s, run some tool like `objdump', `objcopy', or |
| 466 | # `nm' on the .o file to produce textual output, and then analyze that |
| 467 | # with regexps. The FILE.d file specifies what program to run, and |
| 468 | # what to expect in its output. |
| 469 | # |
| 470 | # The FILE.d file begins with zero or more option lines, which specify |
| 471 | # flags to pass to the assembler, the program to run to dump the |
| 472 | # assembler's output, and the options it wants. The option lines have |
| 473 | # the syntax: |
| 474 | # |
| 475 | # # OPTION: VALUE |
| 476 | # |
| 477 | # OPTION is the name of some option, like "name" or "objdump", and |
| 478 | # VALUE is OPTION's value. The valid options are described below. |
| 479 | # Whitespace is ignored everywhere, except within VALUE. The option |
| 480 | # list ends with the first line that doesn't match the above syntax |
| 481 | # (hmm, not great for error detection). |
| 482 | # |
| 483 | # The optional EXTRA_OPTIONS argument to `run_dump_test' is a list of |
| 484 | # two-element lists. The first element of each is an option name, and |
| 485 | # the second additional arguments to be added on to the end of the |
| 486 | # option list as given in FILE.d. (If omitted, no additional options |
| 487 | # are added.) |
| 488 | # |
| 489 | # The interesting options are: |
| 490 | # |
| 491 | # name: TEST-NAME |
| 492 | # The name of this test, passed to DejaGNU's `pass' and `fail' |
| 493 | # commands. If omitted, this defaults to FILE, the root of the |
| 494 | # .s and .d files' names. |
| 495 | # |
| 496 | # as: FLAGS |
| 497 | # When assembling, pass FLAGS to the assembler. |
| 498 | # If assembling several files, you can pass different assembler |
| 499 | # options in the "source" directives. See below. |
| 500 | # |
| 501 | # ld: FLAGS |
| 502 | # Link assembled files using FLAGS, in the order of the "source" |
| 503 | # directives, when using multiple files. |
| 504 | # |
| 505 | # ld_after_inputfiles: FLAGS |
| 506 | # Similar to "ld", but put after all input files. |
| 507 | # |
| 508 | # objcopy_linked_file: FLAGS |
| 509 | # Run objcopy on the linked file with the specified flags. |
| 510 | # This lets you transform the linked file using objcopy, before the |
| 511 | # result is analyzed by an analyzer program specified below (which |
| 512 | # may in turn *also* be objcopy). |
| 513 | # |
| 514 | # PROG: PROGRAM-NAME |
| 515 | # The name of the program to run to analyze the .o file produced |
| 516 | # by the assembler or the linker output. This can be omitted; |
| 517 | # run_dump_test will guess which program to run by seeing which of |
| 518 | # the flags options below is present. |
| 519 | # |
| 520 | # objdump: FLAGS |
| 521 | # nm: FLAGS |
| 522 | # objcopy: FLAGS |
| 523 | # Use the specified program to analyze the assembler or linker |
| 524 | # output file, and pass it FLAGS, in addition to the output name. |
| 525 | # Note that they are run with LC_ALL=C in the environment to give |
| 526 | # consistent sorting of symbols. |
| 527 | # |
| 528 | # source: SOURCE [FLAGS] |
| 529 | # Assemble the file SOURCE.s using the flags in the "as" directive |
| 530 | # and the (optional) FLAGS. If omitted, the source defaults to |
| 531 | # FILE.s. |
| 532 | # This is useful if several .d files want to share a .s file. |
| 533 | # More than one "source" directive can be given, which is useful |
| 534 | # when testing linking. |
| 535 | # |
| 536 | # dump: DUMP |
| 537 | # Match against DUMP.d. If omitted, this defaults to FILE.d. This |
| 538 | # is useful if several .d files differ by options only. Options are |
| 539 | # always read from FILE.d. |
| 540 | # |
| 541 | # xfail: TARGET |
| 542 | # The test is expected to fail on TARGET. This may occur more than |
| 543 | # once. |
| 544 | # |
| 545 | # target: TARGET |
| 546 | # Only run the test for TARGET. This may occur more than once; the |
| 547 | # target being tested must match at least one. You may provide target |
| 548 | # name "cfi" for any target supporting the CFI statements. |
| 549 | # |
| 550 | # notarget: TARGET |
| 551 | # Do not run the test for TARGET. This may occur more than once; |
| 552 | # the target being tested must not match any of them. |
| 553 | # |
| 554 | # error: REGEX |
| 555 | # An error with message matching REGEX must be emitted for the test |
| 556 | # to pass. The PROG, objdump, nm and objcopy options have no |
| 557 | # meaning and need not supplied if this is present. Multiple "error" |
| 558 | # directives append to the expected linker error message. |
| 559 | # |
| 560 | # warning: REGEX |
| 561 | # Expect a linker warning matching REGEX. It is an error to issue |
| 562 | # both "error" and "warning". Multiple "warning" directives |
| 563 | # append to the expected linker warning message. |
| 564 | # |
| 565 | # Each option may occur at most once unless otherwise mentioned. |
| 566 | # |
| 567 | # After the option lines come regexp lines. `run_dump_test' calls |
| 568 | # `regexp_diff' to compare the output of the dumping tool against the |
| 569 | # regexps in FILE.d. `regexp_diff' is defined in binutils-common.exp; |
| 570 | # see further comments there. |
| 571 | # |
| 572 | proc run_dump_test { name {extra_options {}} } { |
| 573 | global subdir srcdir |
| 574 | global OBJDUMP NM AS OBJCOPY READELF LD |
| 575 | global OBJDUMPFLAGS NMFLAGS ASFLAGS OBJCOPYFLAGS READELFFLAGS LDFLAGS |
| 576 | global host_triplet runtests |
| 577 | global env verbose |
| 578 | |
| 579 | if [string match "*/*" $name] { |
| 580 | set file $name |
| 581 | set name [file tail $name] |
| 582 | } else { |
| 583 | set file "$srcdir/$subdir/$name" |
| 584 | } |
| 585 | |
| 586 | if ![runtest_file_p $runtests $name] then { |
| 587 | return |
| 588 | } |
| 589 | |
| 590 | set opt_array [slurp_options "${file}.d"] |
| 591 | if { $opt_array == -1 } { |
| 592 | perror "error reading options from $file.d" |
| 593 | unresolved $subdir/$name |
| 594 | return |
| 595 | } |
| 596 | set dumpfile tmpdir/dump.out |
| 597 | set run_ld 0 |
| 598 | set run_objcopy 0 |
| 599 | set opts(as) {} |
| 600 | set opts(ld) {} |
| 601 | set opts(ld_after_inputfiles) {} |
| 602 | set opts(xfail) {} |
| 603 | set opts(target) {} |
| 604 | set opts(notarget) {} |
| 605 | set opts(objdump) {} |
| 606 | set opts(nm) {} |
| 607 | set opts(objcopy) {} |
| 608 | set opts(readelf) {} |
| 609 | set opts(name) {} |
| 610 | set opts(PROG) {} |
| 611 | set opts(source) {} |
| 612 | set opts(dump) {} |
| 613 | set opts(error) {} |
| 614 | set opts(warning) {} |
| 615 | set opts(objcopy_linked_file) {} |
| 616 | |
| 617 | foreach i $opt_array { |
| 618 | set opt_name [lindex $i 0] |
| 619 | set opt_val [lindex $i 1] |
| 620 | if ![info exists opts($opt_name)] { |
| 621 | perror "unknown option $opt_name in file $file.d" |
| 622 | unresolved $subdir/$name |
| 623 | return |
| 624 | } |
| 625 | |
| 626 | switch -- $opt_name { |
| 627 | xfail {} |
| 628 | target {} |
| 629 | notarget {} |
| 630 | warning {} |
| 631 | error {} |
| 632 | source { |
| 633 | # Move any source-specific as-flags to a separate list to |
| 634 | # simplify processing. |
| 635 | if { [llength $opt_val] > 1 } { |
| 636 | lappend asflags [lrange $opt_val 1 end] |
| 637 | set opt_val [lindex $opt_val 0] |
| 638 | } else { |
| 639 | lappend asflags {} |
| 640 | } |
| 641 | } |
| 642 | default { |
| 643 | if [string length $opts($opt_name)] { |
| 644 | perror "option $opt_name multiply set in $file.d" |
| 645 | unresolved $subdir/$name |
| 646 | return |
| 647 | } |
| 648 | |
| 649 | # A single "# ld:" with no options should do the right thing. |
| 650 | if { $opt_name == "ld" } { |
| 651 | set run_ld 1 |
| 652 | } |
| 653 | # Likewise objcopy_linked_file. |
| 654 | if { $opt_name == "objcopy_linked_file" } { |
| 655 | set run_objcopy 1 |
| 656 | } |
| 657 | } |
| 658 | } |
| 659 | if { $opt_name == "as" || $opt_name == "ld" } { |
| 660 | set opt_val [subst $opt_val] |
| 661 | } |
| 662 | |
| 663 | # Append differently whether it's a message (without space) or |
| 664 | # an option or list (with space). |
| 665 | switch -- $opt_name { |
| 666 | warning - |
| 667 | error { |
| 668 | append opts($opt_name) $opt_val |
| 669 | } |
| 670 | default { |
| 671 | set opts($opt_name) [concat $opts($opt_name) $opt_val] |
| 672 | } |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | foreach i $extra_options { |
| 677 | set opt_name [lindex $i 0] |
| 678 | set opt_val [lindex $i 1] |
| 679 | if ![info exists opts($opt_name)] { |
| 680 | perror "unknown option $opt_name given in extra_opts" |
| 681 | unresolved $subdir/$name |
| 682 | return |
| 683 | } |
| 684 | # Add extra option to end of existing option, adding space |
| 685 | # if necessary. |
| 686 | if { ![regexp "warning|error" $opt_name] |
| 687 | && [string length $opts($opt_name)] } { |
| 688 | append opts($opt_name) " " |
| 689 | } |
| 690 | append opts($opt_name) $opt_val |
| 691 | } |
| 692 | |
| 693 | foreach opt { as ld } { |
| 694 | regsub {\[big_or_little_endian\]} $opts($opt) \ |
| 695 | [big_or_little_endian] opts($opt) |
| 696 | } |
| 697 | |
| 698 | # Decide early whether we should run the test for this target. |
| 699 | if { [llength $opts(target)] > 0 } { |
| 700 | set targmatch 0 |
| 701 | foreach targ $opts(target) { |
| 702 | if [istarget $targ] { |
| 703 | set targmatch 1 |
| 704 | break |
| 705 | } |
| 706 | } |
| 707 | if { $targmatch == 0 } { |
| 708 | return |
| 709 | } |
| 710 | } |
| 711 | foreach targ $opts(notarget) { |
| 712 | if [istarget $targ] { |
| 713 | return |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | set program "" |
| 718 | # It's meaningless to require an output-testing method when we |
| 719 | # expect an error. |
| 720 | if { $opts(error) == "" } { |
| 721 | if {$opts(PROG) != ""} { |
| 722 | switch -- $opts(PROG) { |
| 723 | objdump { set program objdump } |
| 724 | nm { set program nm } |
| 725 | objcopy { set program objcopy } |
| 726 | readelf { set program readelf } |
| 727 | default |
| 728 | { perror "unrecognized program option $opts(PROG) in $file.d" |
| 729 | unresolved $subdir/$name |
| 730 | return } |
| 731 | } |
| 732 | } else { |
| 733 | # Guess which program to run, by seeing which option was specified. |
| 734 | foreach p {objdump objcopy nm readelf} { |
| 735 | if {$opts($p) != ""} { |
| 736 | if {$program != ""} { |
| 737 | perror "ambiguous dump program in $file.d" |
| 738 | unresolved $subdir/$name |
| 739 | return |
| 740 | } else { |
| 741 | set program $p |
| 742 | } |
| 743 | } |
| 744 | } |
| 745 | } |
| 746 | if { $program == "" && $opts(warning) == "" } { |
| 747 | perror "dump program unspecified in $file.d" |
| 748 | unresolved $subdir/$name |
| 749 | return |
| 750 | } |
| 751 | } |
| 752 | |
| 753 | if { $opts(name) == "" } { |
| 754 | set testname "$subdir/$name" |
| 755 | } else { |
| 756 | set testname $opts(name) |
| 757 | } |
| 758 | |
| 759 | if { $opts(source) == "" } { |
| 760 | set sourcefiles [list ${file}.s] |
| 761 | set asflags [list ""] |
| 762 | } else { |
| 763 | set sourcefiles {} |
| 764 | foreach sf $opts(source) { |
| 765 | if { [string match "/*" $sf] } { |
| 766 | lappend sourcefiles "$sf" |
| 767 | } else { |
| 768 | lappend sourcefiles "$srcdir/$subdir/$sf" |
| 769 | } |
| 770 | } |
| 771 | } |
| 772 | |
| 773 | if { $opts(dump) == "" } { |
| 774 | set dfile ${file}.d |
| 775 | } else { |
| 776 | set dfile $srcdir/$subdir/$opts(dump) |
| 777 | } |
| 778 | |
| 779 | if { [string match "*--compress-debug-sections*" $opts(as)] \ |
| 780 | && ![is_zlib_supported] } { |
| 781 | unsupported $testname |
| 782 | return |
| 783 | } |
| 784 | |
| 785 | # Time to setup xfailures. |
| 786 | foreach targ $opts(xfail) { |
| 787 | setup_xfail $targ |
| 788 | } |
| 789 | |
| 790 | # Assemble each file. |
| 791 | set objfiles {} |
| 792 | for { set i 0 } { $i < [llength $sourcefiles] } { incr i } { |
| 793 | set sourcefile [lindex $sourcefiles $i] |
| 794 | set sourceasflags [lindex $asflags $i] |
| 795 | |
| 796 | set objfile "tmpdir/dump$i.o" |
| 797 | catch "exec rm -f $objfile" exec_output |
| 798 | lappend objfiles $objfile |
| 799 | set cmd "$AS $ASFLAGS $opts(as) $sourceasflags -o $objfile $sourcefile" |
| 800 | |
| 801 | send_log "$cmd\n" |
| 802 | set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"] |
| 803 | remote_upload host "ld.tmp" |
| 804 | set comp_output [prune_warnings [file_contents "ld.tmp"]] |
| 805 | remote_file host delete "ld.tmp" |
| 806 | remote_file build delete "ld.tmp" |
| 807 | |
| 808 | if { [lindex $cmdret 0] != 0 || ![string match "" $comp_output] } then { |
| 809 | send_log "$comp_output\n" |
| 810 | verbose "$comp_output" 3 |
| 811 | |
| 812 | set exitstat "succeeded" |
| 813 | if { $cmdret != 0 } { set exitstat "failed" } |
| 814 | verbose -log "$exitstat with: <$comp_output>" |
| 815 | fail $testname |
| 816 | return |
| 817 | } |
| 818 | } |
| 819 | |
| 820 | set expmsg $opts(error) |
| 821 | if { $opts(warning) != "" } { |
| 822 | if { $expmsg != "" } { |
| 823 | perror "$testname: mixing error and warning test-directives" |
| 824 | return |
| 825 | } |
| 826 | set expmsg $opts(warning) |
| 827 | } |
| 828 | |
| 829 | # Perhaps link the file(s). |
| 830 | if { $run_ld } { |
| 831 | set objfile "tmpdir/dump" |
| 832 | catch "exec rm -f $objfile" exec_output |
| 833 | |
| 834 | # Add -L$srcdir/$subdir so that the linker command can use |
| 835 | # linker scripts in the source directory. |
| 836 | set cmd "$LD $LDFLAGS -L$srcdir/$subdir \ |
| 837 | $opts(ld) -o $objfile $objfiles $opts(ld_after_inputfiles)" |
| 838 | |
| 839 | send_log "$cmd\n" |
| 840 | set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"] |
| 841 | remote_upload host "ld.tmp" |
| 842 | set comp_output [file_contents "ld.tmp"] |
| 843 | remote_file host delete "ld.tmp" |
| 844 | remote_file build delete "ld.tmp" |
| 845 | set cmdret [lindex $cmdret 0] |
| 846 | |
| 847 | if { $cmdret == 0 && $run_objcopy } { |
| 848 | set infile $objfile |
| 849 | set objfile "tmpdir/dump1" |
| 850 | remote_file host delete $objfile |
| 851 | |
| 852 | # Note that we don't use OBJCOPYFLAGS here; any flags must be |
| 853 | # explicitly specified. |
| 854 | set cmd "$OBJCOPY $opts(objcopy_linked_file) $infile $objfile" |
| 855 | |
| 856 | send_log "$cmd\n" |
| 857 | set cmdret [remote_exec host [concat sh -c [list "$cmd 2>&1"]] "" "/dev/null" "ld.tmp"] |
| 858 | remote_upload host "ld.tmp" |
| 859 | append comp_output [file_contents "ld.tmp"] |
| 860 | remote_file host delete "ld.tmp" |
| 861 | remote_file build delete "ld.tmp" |
| 862 | set cmdret [lindex $cmdret 0] |
| 863 | } |
| 864 | |
| 865 | regsub "\n$" $comp_output "" comp_output |
| 866 | if { $cmdret != 0 || $comp_output != "" || $expmsg != "" } then { |
| 867 | set exitstat "succeeded" |
| 868 | if { $cmdret != 0 } { set exitstat "failed" } |
| 869 | verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>" |
| 870 | send_log "$comp_output\n" |
| 871 | verbose "$comp_output" 3 |
| 872 | |
| 873 | if { ($expmsg == "") == ($comp_output == "") \ |
| 874 | && [regexp $expmsg $comp_output] \ |
| 875 | && (($cmdret == 0) == ($opts(error) == "")) } { |
| 876 | # We have the expected output from ld. |
| 877 | if { $opts(error) != "" || $program == "" } { |
| 878 | pass $testname |
| 879 | return |
| 880 | } |
| 881 | } else { |
| 882 | verbose -log "$exitstat with: <$comp_output>, expected: <$expmsg>" |
| 883 | fail $testname |
| 884 | return |
| 885 | } |
| 886 | } |
| 887 | } else { |
| 888 | set objfile "tmpdir/dump0.o" |
| 889 | } |
| 890 | |
| 891 | # We must not have expected failure if we get here. |
| 892 | if { $opts(error) != "" } { |
| 893 | fail $testname |
| 894 | return |
| 895 | } |
| 896 | |
| 897 | set progopts1 $opts($program) |
| 898 | eval set progopts \$[string toupper $program]FLAGS |
| 899 | eval set binary \$[string toupper $program] |
| 900 | |
| 901 | if { ![is_remote host] && [which $binary] == 0 } { |
| 902 | untested $testname |
| 903 | return |
| 904 | } |
| 905 | |
| 906 | if { $progopts1 == "" } { set $progopts1 "-r" } |
| 907 | verbose "running $binary $progopts $progopts1" 3 |
| 908 | |
| 909 | # Objcopy, unlike the other two, won't send its output to stdout, |
| 910 | # so we have to run it specially. |
| 911 | set cmd "$binary $progopts $progopts1 $objfile > $dumpfile" |
| 912 | if { $program == "objcopy" } { |
| 913 | set cmd "$binary $progopts $progopts1 $objfile $dumpfile" |
| 914 | } |
| 915 | |
| 916 | # Ensure consistent sorting of symbols |
| 917 | if {[info exists env(LC_ALL)]} { |
| 918 | set old_lc_all $env(LC_ALL) |
| 919 | } |
| 920 | set env(LC_ALL) "C" |
| 921 | send_log "$cmd\n" |
| 922 | set cmdret [remote_exec host [concat sh -c [list "$cmd 2>ld.tmp"]] "" "/dev/null"] |
| 923 | set cmdret [lindex $cmdret 0] |
| 924 | remote_upload host "ld.tmp" |
| 925 | set comp_output [prune_warnings [file_contents "ld.tmp"]] |
| 926 | remote_file host delete "ld.tmp" |
| 927 | remote_file build delete "ld.tmp" |
| 928 | if {[info exists old_lc_all]} { |
| 929 | set env(LC_ALL) $old_lc_all |
| 930 | } else { |
| 931 | unset env(LC_ALL) |
| 932 | } |
| 933 | if { $cmdret != 0 || $comp_output != "" } { |
| 934 | send_log "exited abnormally with $cmdret, output:$comp_output\n" |
| 935 | fail $testname |
| 936 | return |
| 937 | } |
| 938 | |
| 939 | if { $verbose > 2 } then { verbose "output is [file_contents $dumpfile]" 3 } |
| 940 | if { [regexp_diff $dumpfile "${dfile}"] } then { |
| 941 | fail $testname |
| 942 | if { $verbose == 2 } then { verbose "output is [file_contents $dumpfile]" 2 } |
| 943 | return |
| 944 | } |
| 945 | |
| 946 | pass $testname |
| 947 | } |
| 948 | |
| 949 | proc slurp_options { file } { |
| 950 | # If options_regsub(foo) is set to {a b}, then the contents of a |
| 951 | # "#foo:" line will have regsub -all applied to replace a with b. |
| 952 | global options_regsub |
| 953 | |
| 954 | if [catch { set f [open $file r] } x] { |
| 955 | #perror "couldn't open `$file': $x" |
| 956 | perror "$x" |
| 957 | return -1 |
| 958 | } |
| 959 | set opt_array {} |
| 960 | # whitespace expression |
| 961 | set ws {[ ]*} |
| 962 | set nws {[^ ]*} |
| 963 | # whitespace is ignored anywhere except within the options list; |
| 964 | # option names are alphabetic plus underscore only. |
| 965 | set pat "^#${ws}(\[a-zA-Z_\]*)$ws:${ws}(.*)$ws\$" |
| 966 | while { [gets $f line] != -1 } { |
| 967 | set line [string trim $line] |
| 968 | # Whitespace here is space-tab. |
| 969 | if [regexp $pat $line xxx opt_name opt_val] { |
| 970 | # match! |
| 971 | if [info exists options_regsub($opt_name)] { |
| 972 | set subst $options_regsub($opt_name) |
| 973 | regsub -all -- [lindex $subst 0] $opt_val [lindex $subst 1] \ |
| 974 | opt_val |
| 975 | } |
| 976 | lappend opt_array [list $opt_name $opt_val] |
| 977 | } else { |
| 978 | break |
| 979 | } |
| 980 | } |
| 981 | close $f |
| 982 | return $opt_array |
| 983 | } |
| 984 | |
| 985 | proc file_contents { filename } { |
| 986 | set file [open $filename r] |
| 987 | set contents [read $file] |
| 988 | close $file |
| 989 | return $contents |
| 990 | } |
| 991 | |
| 992 | proc set_file_contents { filename contents } { |
| 993 | set file [open $filename w] |
| 994 | puts $file "$contents" |
| 995 | close $file |
| 996 | } |
| 997 | |
| 998 | # Create an archive using ar |
| 999 | # |
| 1000 | proc ar_simple_create { ar aropts target objects } { |
| 1001 | remote_file host delete $target |
| 1002 | |
| 1003 | set exec_output [run_host_cmd "$ar" "$aropts -rc $target $objects"] |
| 1004 | set exec_output [prune_warnings $exec_output] |
| 1005 | |
| 1006 | if [string match "" $exec_output] then { |
| 1007 | send_log "$exec_output\n" |
| 1008 | return 1 |
| 1009 | } else { |
| 1010 | return 0 |
| 1011 | } |
| 1012 | } |
| 1013 | |
| 1014 | # List contains test-items with 3 items followed by 2 lists, one item and |
| 1015 | # one optional item: |
| 1016 | # 0:name |
| 1017 | # 1:ld/ar leading options, placed before object files |
| 1018 | # 2:ld/ar trailing options, placed after object files |
| 1019 | # 3:assembler options |
| 1020 | # 4:filenames of assembler files |
| 1021 | # 5:list of actions, options and expected outputs. |
| 1022 | # 6:name of output file |
| 1023 | # 7:compiler flags (optional) |
| 1024 | # |
| 1025 | # Actions: { command command-line-options file-containg-expected-output-regexps } |
| 1026 | # Commands: |
| 1027 | # objdump: Apply objdump options on result. |
| 1028 | # nm: Apply nm options on result. |
| 1029 | # readelf: Apply readelf options on result. |
| 1030 | # ld: Don't apply anything on result. Compare output during linking with |
| 1031 | # the file containing regexps (which is the second arg, not the third). |
| 1032 | # Note that this *must* be the first action if it is to be used at all; |
| 1033 | # in all other cases, any output from the linker during linking is |
| 1034 | # treated as a sign of an error and FAILs the test. |
| 1035 | # |
| 1036 | proc run_ld_link_tests { ldtests } { |
| 1037 | global ld |
| 1038 | global as |
| 1039 | global nm |
| 1040 | global ar |
| 1041 | global objdump |
| 1042 | global READELF |
| 1043 | global srcdir |
| 1044 | global subdir |
| 1045 | global env |
| 1046 | global CC |
| 1047 | global CFLAGS |
| 1048 | global runtests |
| 1049 | global exec_output |
| 1050 | |
| 1051 | foreach testitem $ldtests { |
| 1052 | set testname [lindex $testitem 0] |
| 1053 | |
| 1054 | if ![runtest_file_p $runtests $testname] then { |
| 1055 | continue |
| 1056 | } |
| 1057 | |
| 1058 | set ld_options [lindex $testitem 1] |
| 1059 | set ld_after [lindex $testitem 2] |
| 1060 | set as_options [lindex $testitem 3] |
| 1061 | set src_files [lindex $testitem 4] |
| 1062 | set actions [lindex $testitem 5] |
| 1063 | set binfile tmpdir/[lindex $testitem 6] |
| 1064 | set cflags [lindex $testitem 7] |
| 1065 | set objfiles {} |
| 1066 | set is_unresolved 0 |
| 1067 | set failed 0 |
| 1068 | set maybe_failed 0 |
| 1069 | set ld_output "" |
| 1070 | |
| 1071 | # verbose -log "Testname is $testname" |
| 1072 | # verbose -log "ld_options is $ld_options" |
| 1073 | # verbose -log "ld_after is $ld_after" |
| 1074 | # verbose -log "as_options is $as_options" |
| 1075 | # verbose -log "src_files is $src_files" |
| 1076 | # verbose -log "actions is $actions" |
| 1077 | # verbose -log "binfile is $binfile" |
| 1078 | |
| 1079 | # Assemble each file in the test. |
| 1080 | foreach src_file $src_files { |
| 1081 | set fileroot "[file rootname [file tail $src_file]]" |
| 1082 | set objfile "tmpdir/$fileroot.o" |
| 1083 | lappend objfiles $objfile |
| 1084 | |
| 1085 | if { [file extension $src_file] == ".c" } { |
| 1086 | set as_file "tmpdir/$fileroot.s" |
| 1087 | if ![ld_compile "$CC -S $CFLAGS $cflags" $srcdir/$subdir/$src_file $as_file] { |
| 1088 | set is_unresolved 1 |
| 1089 | break |
| 1090 | } |
| 1091 | } else { |
| 1092 | set as_file "$srcdir/$subdir/$src_file" |
| 1093 | } |
| 1094 | if ![ld_assemble $as "$as_options $as_file" $objfile] { |
| 1095 | set is_unresolved 1 |
| 1096 | break |
| 1097 | } |
| 1098 | } |
| 1099 | |
| 1100 | # Catch assembler errors. |
| 1101 | if { $is_unresolved } { |
| 1102 | unresolved $testname |
| 1103 | continue |
| 1104 | } |
| 1105 | |
| 1106 | if { [regexp ".*\\.a$" $binfile] } { |
| 1107 | if { ![ar_simple_create $ar $ld_options $binfile "$objfiles $ld_after"] } { |
| 1108 | set failed 1 |
| 1109 | } |
| 1110 | } elseif { ![ld_simple_link $ld $binfile "-L$srcdir/$subdir $ld_options $objfiles $ld_after"] } { |
| 1111 | set maybe_failed 1 |
| 1112 | set ld_output "$exec_output" |
| 1113 | } |
| 1114 | |
| 1115 | if { !$failed } { |
| 1116 | foreach actionlist $actions { |
| 1117 | set action [lindex $actionlist 0] |
| 1118 | set progopts [lindex $actionlist 1] |
| 1119 | |
| 1120 | # There are actions where we run regexp_diff on the |
| 1121 | # output, and there are other actions (presumably). |
| 1122 | # Handling of the former look the same. |
| 1123 | set dump_prog "" |
| 1124 | switch -- $action { |
| 1125 | objdump |
| 1126 | { set dump_prog $objdump } |
| 1127 | nm |
| 1128 | { set dump_prog $nm } |
| 1129 | readelf |
| 1130 | { set dump_prog $READELF } |
| 1131 | ld |
| 1132 | { set dump_prog "ld" } |
| 1133 | default |
| 1134 | { |
| 1135 | perror "Unrecognized action $action" |
| 1136 | set is_unresolved 1 |
| 1137 | break |
| 1138 | } |
| 1139 | } |
| 1140 | |
| 1141 | if { $action == "ld" } { |
| 1142 | set regexpfile $progopts |
| 1143 | verbose "regexpfile is $srcdir/$subdir/$regexpfile" |
| 1144 | set_file_contents "tmpdir/ld.messages" "$ld_output" |
| 1145 | verbose "ld.messages has '[file_contents tmpdir/ld.messages]'" |
| 1146 | if { [regexp_diff "tmpdir/ld.messages" "$srcdir/$subdir/$regexpfile"] } then { |
| 1147 | verbose "output is $ld_output" 2 |
| 1148 | set failed 1 |
| 1149 | break |
| 1150 | } |
| 1151 | set maybe_failed 0 |
| 1152 | } elseif { !$maybe_failed && $dump_prog != "" } { |
| 1153 | set dumpfile [lindex $actionlist 2] |
| 1154 | set binary $dump_prog |
| 1155 | |
| 1156 | # Ensure consistent sorting of symbols |
| 1157 | if {[info exists env(LC_ALL)]} { |
| 1158 | set old_lc_all $env(LC_ALL) |
| 1159 | } |
| 1160 | set env(LC_ALL) "C" |
| 1161 | set cmd "$binary $progopts $binfile" |
| 1162 | set status [remote_exec host [concat sh -c [list "$cmd >dump.out 2>ld.stderr"]] "" "/dev/null"] |
| 1163 | send_log "$cmd\n" |
| 1164 | remote_upload host "ld.stderr" |
| 1165 | set comp_output [prune_warnings [file_contents "ld.stderr"]] |
| 1166 | remote_file host delete "ld.stderr" |
| 1167 | remote_file build delete "ld.stderr" |
| 1168 | |
| 1169 | if {[info exists old_lc_all]} { |
| 1170 | set env(LC_ALL) $old_lc_all |
| 1171 | } else { |
| 1172 | unset env(LC_ALL) |
| 1173 | } |
| 1174 | |
| 1175 | if ![string match "" $comp_output] then { |
| 1176 | send_log "$comp_output\n" |
| 1177 | set failed 1 |
| 1178 | break |
| 1179 | } |
| 1180 | |
| 1181 | remote_upload host "dump.out" |
| 1182 | |
| 1183 | if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then { |
| 1184 | verbose "output is [file_contents "dump.out"]" 2 |
| 1185 | set failed 1 |
| 1186 | remote_file build delete "dump.out" |
| 1187 | remote_file host delete "dump.out" |
| 1188 | break |
| 1189 | } |
| 1190 | remote_file build delete "dump.out" |
| 1191 | remote_file host delete "dump.out" |
| 1192 | } |
| 1193 | } |
| 1194 | } |
| 1195 | |
| 1196 | if { $is_unresolved } { |
| 1197 | unresolved $testname |
| 1198 | } elseif { $maybe_failed || $failed } { |
| 1199 | fail $testname |
| 1200 | } else { |
| 1201 | pass $testname |
| 1202 | } |
| 1203 | } |
| 1204 | } |
| 1205 | |
| 1206 | # This definition is taken from an unreleased version of DejaGnu. Once |
| 1207 | # that version gets released, and has been out in the world for a few |
| 1208 | # months at least, it may be safe to delete this copy. |
| 1209 | if ![string length [info proc prune_warnings]] { |
| 1210 | # |
| 1211 | # prune_warnings -- delete various system verbosities from TEXT |
| 1212 | # |
| 1213 | # An example is: |
| 1214 | # ld.so: warning: /usr/lib/libc.so.1.8.1 has older revision than expected 9 |
| 1215 | # |
| 1216 | # Sites with particular verbose os's may wish to override this in site.exp. |
| 1217 | # |
| 1218 | proc prune_warnings { text } { |
| 1219 | # This is from sun4's. Do it for all machines for now. |
| 1220 | # The "\\1" is to try to preserve a "\n" but only if necessary. |
| 1221 | regsub -all "(^|\n)(ld.so: warning:\[^\n\]*\n?)+" $text "\\1" text |
| 1222 | |
| 1223 | # It might be tempting to get carried away and delete blank lines, etc. |
| 1224 | # Just delete *exactly* what we're ask to, and that's it. |
| 1225 | return $text |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | # targets_to_xfail is a list of target triplets to be xfailed. |
| 1230 | # ldtests contains test-items with 3 items followed by 1 lists, 2 items |
| 1231 | # and 3 optional items: |
| 1232 | # 0:name |
| 1233 | # 1:ld options |
| 1234 | # 2:assembler options |
| 1235 | # 3:filenames of source files |
| 1236 | # 4:name of output file |
| 1237 | # 5:expected output |
| 1238 | # 6:compiler flags (optional) |
| 1239 | # 7:language (optional) |
| 1240 | # 8:linker warning (optional) |
| 1241 | |
| 1242 | proc run_ld_link_exec_tests { targets_to_xfail ldtests } { |
| 1243 | global ld |
| 1244 | global as |
| 1245 | global srcdir |
| 1246 | global subdir |
| 1247 | global env |
| 1248 | global CC |
| 1249 | global CXX |
| 1250 | global CFLAGS |
| 1251 | global CXXFLAGS |
| 1252 | global errcnt |
| 1253 | global exec_output |
| 1254 | |
| 1255 | foreach testitem $ldtests { |
| 1256 | foreach target $targets_to_xfail { |
| 1257 | setup_xfail $target |
| 1258 | } |
| 1259 | set testname [lindex $testitem 0] |
| 1260 | set ld_options [lindex $testitem 1] |
| 1261 | set as_options [lindex $testitem 2] |
| 1262 | set src_files [lindex $testitem 3] |
| 1263 | set binfile tmpdir/[lindex $testitem 4] |
| 1264 | set expfile [lindex $testitem 5] |
| 1265 | set cflags [lindex $testitem 6] |
| 1266 | set lang [lindex $testitem 7] |
| 1267 | set warning [lindex $testitem 8] |
| 1268 | set objfiles {} |
| 1269 | set failed 0 |
| 1270 | |
| 1271 | # verbose -log "Testname is $testname" |
| 1272 | # verbose -log "ld_options is $ld_options" |
| 1273 | # verbose -log "as_options is $as_options" |
| 1274 | # verbose -log "src_files is $src_files" |
| 1275 | # verbose -log "binfile is $binfile" |
| 1276 | |
| 1277 | # Assemble each file in the test. |
| 1278 | foreach src_file $src_files { |
| 1279 | set fileroot "[file rootname [file tail $src_file]]" |
| 1280 | set objfile "tmpdir/$fileroot.o" |
| 1281 | lappend objfiles $objfile |
| 1282 | |
| 1283 | # We ignore warnings since some compilers may generate |
| 1284 | # incorrect section attributes and the assembler will warn |
| 1285 | # them. |
| 1286 | if { [ string match "c++" $lang ] } { |
| 1287 | ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile |
| 1288 | } else { |
| 1289 | ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile |
| 1290 | } |
| 1291 | } |
| 1292 | |
| 1293 | # We have to use $CC to build PIE and shared library. |
| 1294 | if { [ string match "c" $lang ] } { |
| 1295 | set link_proc ld_simple_link |
| 1296 | set link_cmd $CC |
| 1297 | } elseif { [ string match "c++" $lang ] } { |
| 1298 | set link_proc ld_simple_link |
| 1299 | set link_cmd $CXX |
| 1300 | } elseif { [ string match "-shared" $ld_options ] \ |
| 1301 | || [ string match "-pie" $ld_options ] } { |
| 1302 | set link_proc ld_simple_link |
| 1303 | set link_cmd $CC |
| 1304 | } else { |
| 1305 | set link_proc ld_link |
| 1306 | set link_cmd $ld |
| 1307 | } |
| 1308 | |
| 1309 | if ![$link_proc $link_cmd $binfile "-L$srcdir/$subdir $ld_options $objfiles"] { |
| 1310 | set failed 1 |
| 1311 | } else { |
| 1312 | set failed 0 |
| 1313 | } |
| 1314 | |
| 1315 | # Check if exec_output is expected. |
| 1316 | if { $warning != "" } then { |
| 1317 | verbose -log "returned with: <$exec_output>, expected: <$warning>" |
| 1318 | if { [regexp $warning $exec_output] } then { |
| 1319 | set failed 0 |
| 1320 | } else { |
| 1321 | set failed 1 |
| 1322 | } |
| 1323 | } |
| 1324 | |
| 1325 | if { $failed == 0 } { |
| 1326 | send_log "Running: $binfile > $binfile.out\n" |
| 1327 | verbose "Running: $binfile > $binfile.out" |
| 1328 | catch "exec $binfile > $binfile.out" exec_output |
| 1329 | |
| 1330 | if ![string match "" $exec_output] then { |
| 1331 | send_log "$exec_output\n" |
| 1332 | verbose "$exec_output" 1 |
| 1333 | set failed 1 |
| 1334 | } else { |
| 1335 | send_log "diff $binfile.out $srcdir/$subdir/$expfile\n" |
| 1336 | verbose "diff $binfile.out $srcdir/$subdir/$expfile" |
| 1337 | catch "exec diff $binfile.out $srcdir/$subdir/$expfile" exec_output |
| 1338 | set exec_output [prune_warnings $exec_output] |
| 1339 | |
| 1340 | if ![string match "" $exec_output] then { |
| 1341 | send_log "$exec_output\n" |
| 1342 | verbose "$exec_output" 1 |
| 1343 | set failed 1 |
| 1344 | } |
| 1345 | } |
| 1346 | } |
| 1347 | |
| 1348 | if { $failed != 0 } { |
| 1349 | fail $testname |
| 1350 | } else { |
| 1351 | set errcnt 0 |
| 1352 | pass $testname |
| 1353 | } |
| 1354 | } |
| 1355 | } |
| 1356 | |
| 1357 | # List contains test-items with 3 items followed by 2 lists, one item and |
| 1358 | # one optional item: |
| 1359 | # 0:name |
| 1360 | # 1:ld or ar options |
| 1361 | # 2:compile options |
| 1362 | # 3:filenames of source files |
| 1363 | # 4:action and options. |
| 1364 | # 5:name of output file |
| 1365 | # 6:language (optional) |
| 1366 | # 7:linker warnings (optional) |
| 1367 | # |
| 1368 | # Actions: |
| 1369 | # objdump: Apply objdump options on result. Compare with regex (last arg). |
| 1370 | # nm: Apply nm options on result. Compare with regex (last arg). |
| 1371 | # readelf: Apply readelf options on result. Compare with regex (last arg). |
| 1372 | # |
| 1373 | proc run_cc_link_tests { ldtests } { |
| 1374 | global nm |
| 1375 | global objdump |
| 1376 | global READELF |
| 1377 | global srcdir |
| 1378 | global subdir |
| 1379 | global env |
| 1380 | global CC |
| 1381 | global CXX |
| 1382 | global CFLAGS |
| 1383 | global CXXFLAGS |
| 1384 | global ar |
| 1385 | global exec_output |
| 1386 | |
| 1387 | foreach testitem $ldtests { |
| 1388 | set testname [lindex $testitem 0] |
| 1389 | set ldflags [lindex $testitem 1] |
| 1390 | set cflags [lindex $testitem 2] |
| 1391 | set src_files [lindex $testitem 3] |
| 1392 | set actions [lindex $testitem 4] |
| 1393 | set binfile tmpdir/[lindex $testitem 5] |
| 1394 | set lang [lindex $testitem 6] |
| 1395 | set warnings [lindex $testitem 7] |
| 1396 | set objfiles {} |
| 1397 | set is_unresolved 0 |
| 1398 | set failed 0 |
| 1399 | |
| 1400 | # Compile each file in the test. |
| 1401 | foreach src_file $src_files { |
| 1402 | set fileroot "[file rootname [file tail $src_file]]" |
| 1403 | set objfile "tmpdir/$fileroot.o" |
| 1404 | lappend objfiles $objfile |
| 1405 | |
| 1406 | # We ignore warnings since some compilers may generate |
| 1407 | # incorrect section attributes and the assembler will warn |
| 1408 | # them. |
| 1409 | if { [ string match "c++" $lang ] } { |
| 1410 | ld_compile "$CXX -c $CXXFLAGS $cflags" $srcdir/$subdir/$src_file $objfile |
| 1411 | } else { |
| 1412 | ld_compile "$CC -c $CFLAGS $cflags" $srcdir/$subdir/$src_file $objfile |
| 1413 | } |
| 1414 | } |
| 1415 | |
| 1416 | # Clear error and warning counts. |
| 1417 | reset_vars |
| 1418 | |
| 1419 | if { [ string match "c++" $lang ] } { |
| 1420 | set cc_cmd $CXX |
| 1421 | } else { |
| 1422 | set cc_cmd $CC |
| 1423 | } |
| 1424 | |
| 1425 | if { [regexp ".*\\.a$" $binfile] } { |
| 1426 | if { ![ar_simple_create $ar $ldflags $binfile "$objfiles"] } { |
| 1427 | fail $testname |
| 1428 | set failed 1 |
| 1429 | } else { |
| 1430 | set failed 0 |
| 1431 | } |
| 1432 | } else { |
| 1433 | if { ![ld_simple_link $cc_cmd $binfile "-L$srcdir/$subdir $ldflags $objfiles"] } { |
| 1434 | set failed 1 |
| 1435 | } else { |
| 1436 | set failed 0 |
| 1437 | } |
| 1438 | |
| 1439 | # Check if exec_output is expected. |
| 1440 | if { $warnings != "" } then { |
| 1441 | verbose -log "returned with: <$exec_output>, expected: <$warnings>" |
| 1442 | if { [regexp $warnings $exec_output] } then { |
| 1443 | set failed 0 |
| 1444 | } else { |
| 1445 | set failed 1 |
| 1446 | } |
| 1447 | } |
| 1448 | |
| 1449 | if { $failed == 1 } { |
| 1450 | fail $testname |
| 1451 | } |
| 1452 | } |
| 1453 | |
| 1454 | if { $failed == 0 } { |
| 1455 | foreach actionlist $actions { |
| 1456 | set action [lindex $actionlist 0] |
| 1457 | set progopts [lindex $actionlist 1] |
| 1458 | |
| 1459 | # There are actions where we run regexp_diff on the |
| 1460 | # output, and there are other actions (presumably). |
| 1461 | # Handling of the former look the same. |
| 1462 | set dump_prog "" |
| 1463 | switch -- $action { |
| 1464 | objdump |
| 1465 | { set dump_prog $objdump } |
| 1466 | nm |
| 1467 | { set dump_prog $nm } |
| 1468 | readelf |
| 1469 | { set dump_prog $READELF } |
| 1470 | default |
| 1471 | { |
| 1472 | perror "Unrecognized action $action" |
| 1473 | set is_unresolved 1 |
| 1474 | break |
| 1475 | } |
| 1476 | } |
| 1477 | |
| 1478 | if { $dump_prog != "" } { |
| 1479 | set dumpfile [lindex $actionlist 2] |
| 1480 | set binary $dump_prog |
| 1481 | |
| 1482 | # Ensure consistent sorting of symbols |
| 1483 | if {[info exists env(LC_ALL)]} { |
| 1484 | set old_lc_all $env(LC_ALL) |
| 1485 | } |
| 1486 | set env(LC_ALL) "C" |
| 1487 | set cmd "$binary $progopts $binfile > dump.out" |
| 1488 | send_log "$cmd\n" |
| 1489 | catch "exec $cmd" comp_output |
| 1490 | if {[info exists old_lc_all]} { |
| 1491 | set env(LC_ALL) $old_lc_all |
| 1492 | } else { |
| 1493 | unset env(LC_ALL) |
| 1494 | } |
| 1495 | set comp_output [prune_warnings $comp_output] |
| 1496 | |
| 1497 | if ![string match "" $comp_output] then { |
| 1498 | send_log "$comp_output\n" |
| 1499 | set failed 1 |
| 1500 | break |
| 1501 | } |
| 1502 | |
| 1503 | if { [regexp_diff "dump.out" "$srcdir/$subdir/$dumpfile"] } then { |
| 1504 | verbose "output is [file_contents "dump.out"]" 2 |
| 1505 | set failed 1 |
| 1506 | break |
| 1507 | } |
| 1508 | } |
| 1509 | } |
| 1510 | |
| 1511 | if { $failed != 0 } { |
| 1512 | fail $testname |
| 1513 | } else { if { $is_unresolved == 0 } { |
| 1514 | pass $testname |
| 1515 | } } |
| 1516 | } |
| 1517 | |
| 1518 | # Catch action errors. |
| 1519 | if { $is_unresolved != 0 } { |
| 1520 | unresolved $testname |
| 1521 | continue |
| 1522 | } |
| 1523 | } |
| 1524 | } |
| 1525 | |
| 1526 | # Returns true if --gc-sections is supported on the target. |
| 1527 | |
| 1528 | proc check_gc_sections_available { } { |
| 1529 | global gc_sections_available_saved |
| 1530 | global ld |
| 1531 | |
| 1532 | if {![info exists gc_sections_available_saved]} { |
| 1533 | # Some targets don't support gc-sections despite whatever's |
| 1534 | # advertised by ld's options. |
| 1535 | if { [istarget arc-*-*] |
| 1536 | || [istarget d30v-*-*] |
| 1537 | || [istarget dlx-*-*] |
| 1538 | || [istarget i960-*-*] |
| 1539 | || [istarget or32-*-*] |
| 1540 | || [istarget pj*-*-*] |
| 1541 | || [istarget alpha-*-*] |
| 1542 | || [istarget hppa*64-*-*] |
| 1543 | || [istarget i370-*-*] |
| 1544 | || [istarget i860-*-*] |
| 1545 | || [istarget ia64-*-*] |
| 1546 | || [istarget mep-*-*] |
| 1547 | || [istarget mn10200-*-*] |
| 1548 | || [istarget *-*-cygwin] |
| 1549 | || [istarget *-*-mingw*] } { |
| 1550 | set gc_sections_available_saved 0 |
| 1551 | return 0 |
| 1552 | } |
| 1553 | |
| 1554 | # elf2flt uses -q (--emit-relocs), which is incompatible with |
| 1555 | # --gc-sections. |
| 1556 | if { [board_info target exists ldflags] |
| 1557 | && [regexp " -elf2flt\[ =\]" " [board_info target ldflags] "] } { |
| 1558 | set gc_sections_available_saved 0 |
| 1559 | return 0 |
| 1560 | } |
| 1561 | |
| 1562 | # Check if the ld used by gcc supports --gc-sections. |
| 1563 | # FIXME: this test is useless since ld --help always says |
| 1564 | # --gc-sections is available |
| 1565 | set ld_output [remote_exec host $ld "--help"] |
| 1566 | if { [ string first "--gc-sections" $ld_output ] >= 0 } { |
| 1567 | set gc_sections_available_saved 1 |
| 1568 | } else { |
| 1569 | set gc_sections_available_saved 0 |
| 1570 | } |
| 1571 | } |
| 1572 | return $gc_sections_available_saved |
| 1573 | } |
| 1574 | |
| 1575 | # Returns true if -shared is supported on the target |
| 1576 | # Only used and accurate for ELF targets at the moment |
| 1577 | |
| 1578 | proc check_shared_lib_support { } { |
| 1579 | if {![istarget aarch64*-*-elf] |
| 1580 | && ![istarget arc-*-*] |
| 1581 | && ![istarget arm*-*-elf] |
| 1582 | && ![istarget avr-*-*] |
| 1583 | && ![istarget cr16-*-*] |
| 1584 | && ![istarget cris*-*-elf] |
| 1585 | && ![istarget crx-*-*] |
| 1586 | && ![istarget d10v-*-*] |
| 1587 | && ![istarget d30v-*-*] |
| 1588 | && ![istarget dlx-*-*] |
| 1589 | && ![istarget epiphany-*-*] |
| 1590 | && ![istarget fr30-*-*] |
| 1591 | && ![istarget frv-*-*] |
| 1592 | && ![istarget h8300-*-*] |
| 1593 | && ![istarget i860-*-*] |
| 1594 | && ![istarget i960-*-*] |
| 1595 | && ![istarget ip2k-*-*] |
| 1596 | && ![istarget iq2000-*-*] |
| 1597 | && ![istarget lm32-*-*] |
| 1598 | && ![istarget m32c-*-*] |
| 1599 | && ![istarget m32r-*-*] |
| 1600 | && ![istarget m6811-*-*] |
| 1601 | && ![istarget m6812-*-*] |
| 1602 | && ![istarget m68hc1*-*-*] |
| 1603 | && ![istarget mcore*-*-*] |
| 1604 | && ![istarget mep-*-*] |
| 1605 | && ![istarget microblaze-*-*] |
| 1606 | && ![istarget mips*-*-elf] |
| 1607 | && ![istarget mn10200-*-*] |
| 1608 | && ![istarget moxie-*-*] |
| 1609 | && ![istarget msp430-*-*] |
| 1610 | && ![istarget mt-*-*] |
| 1611 | && ![istarget nds32*-*-*] |
| 1612 | && ![istarget openrisc-*-*] |
| 1613 | && ![istarget or32-*-*] |
| 1614 | && ![istarget pj-*-*] |
| 1615 | && ![istarget rl78-*-*] |
| 1616 | && ![istarget rx-*-*] |
| 1617 | && ![istarget spu-*-*] |
| 1618 | && ![istarget v850*-*-*] |
| 1619 | && ![istarget xstormy16-*-*] |
| 1620 | && ![istarget *-*-irix*] |
| 1621 | && ![istarget *-*-rtems] } { |
| 1622 | return 1 |
| 1623 | } |
| 1624 | return 0 |
| 1625 | } |
| 1626 | |
| 1627 | # Returns true if the target ld supports the plugin API. |
| 1628 | proc check_plugin_api_available { } { |
| 1629 | global plugin_api_available_saved |
| 1630 | global ld |
| 1631 | if {![info exists plugin_api_available_saved]} { |
| 1632 | # Check if the ld used by gcc supports --plugin. |
| 1633 | set ld_output [remote_exec host $ld "--help"] |
| 1634 | if { [ string first "-plugin" $ld_output ] >= 0 } { |
| 1635 | set plugin_api_available_saved 1 |
| 1636 | } else { |
| 1637 | set plugin_api_available_saved 0 |
| 1638 | } |
| 1639 | } |
| 1640 | return $plugin_api_available_saved |
| 1641 | } |
| 1642 | |
| 1643 | # Returns true if the target compiler supports LTO |
| 1644 | proc check_lto_available { } { |
| 1645 | global lto_available_saved |
| 1646 | global CC |
| 1647 | |
| 1648 | set flags "" |
| 1649 | |
| 1650 | if [board_info [target_info name] exists cflags] { |
| 1651 | append flags " [board_info [target_info name] cflags]" |
| 1652 | } |
| 1653 | |
| 1654 | if [board_info [target_info name] exists ldflags] { |
| 1655 | append flags " [board_info [target_info name] ldflags]" |
| 1656 | } |
| 1657 | |
| 1658 | if {![info exists lto_available_saved]} { |
| 1659 | # Check if gcc supports -flto -fuse-linker-plugin |
| 1660 | if { [which $CC] == 0 } { |
| 1661 | set lto_available_saved 0 |
| 1662 | return 0 |
| 1663 | } |
| 1664 | set basename "lto" |
| 1665 | set src ${basename}[pid].c |
| 1666 | set output ${basename}[pid].out |
| 1667 | set f [open $src "w"] |
| 1668 | puts $f "int main() { return 0; }" |
| 1669 | close $f |
| 1670 | set status [remote_exec host $CC "$flags -B[pwd]/tmpdir/ld/ -flto -ffat-lto-objects -fuse-linker-plugin $src -o $output"] |
| 1671 | if { [lindex $status 0] == 0 } { |
| 1672 | set lto_available_saved 1 |
| 1673 | } else { |
| 1674 | set lto_available_saved 0 |
| 1675 | } |
| 1676 | file delete $src |
| 1677 | file delete $output |
| 1678 | } |
| 1679 | return $lto_available_saved |
| 1680 | } |
| 1681 | |
| 1682 | # Check if the assembler supports CFI statements. |
| 1683 | |
| 1684 | proc check_as_cfi { } { |
| 1685 | global check_as_cfi_result |
| 1686 | global as |
| 1687 | if [info exists check_as_cfi_result] { |
| 1688 | return $check_as_cfi_result |
| 1689 | } |
| 1690 | set as_file "tmpdir/check_as_cfi.s" |
| 1691 | set as_fh [open $as_file w 0666] |
| 1692 | puts $as_fh "# Generated file. DO NOT EDIT" |
| 1693 | puts $as_fh "\t.cfi_startproc" |
| 1694 | puts $as_fh "\t.cfi_endproc" |
| 1695 | close $as_fh |
| 1696 | remote_download host $as_file |
| 1697 | verbose -log "Checking CFI support:" |
| 1698 | rename "perror" "check_as_cfi_perror" |
| 1699 | proc perror { args } { } |
| 1700 | set success [ld_assemble $as $as_file "/dev/null"] |
| 1701 | rename "perror" "" |
| 1702 | rename "check_as_cfi_perror" "perror" |
| 1703 | #remote_file host delete $as_file |
| 1704 | set check_as_cfi_result $success |
| 1705 | return $success |
| 1706 | } |
| 1707 | |
| 1708 | # Provide virtual target "cfi" for targets supporting CFI. |
| 1709 | |
| 1710 | rename "istarget" "istarget_ld" |
| 1711 | proc istarget { target } { |
| 1712 | if {$target == "cfi"} { |
| 1713 | return [check_as_cfi] |
| 1714 | } |
| 1715 | return [istarget_ld $target] |
| 1716 | } |