ld/testsuite/config/default.exp

   1 # Basic expect script for LD Regression Tests
   2 #   Copyright (C) 1993-2020 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 # Written by Jeffrey Wheat (cassidy@cygnus.com)
  22 #
  23
  24 if ![info exists ld] then {
  25     set ld [findfile $base_dir/ld-new $base_dir/ld-new [transform ld]]
  26 }
  27
  28 if ![info exists as] then {
  29     set as [findfile $base_dir/../gas/as-new $base_dir/../gas/as-new [transform as]]
  30 }
  31
  32 if ![info exists nm] then {
  33     set nm [findfile $base_dir/../binutils/nm-new $base_dir/../binutils/nm-new [transform nm]]
  34 }
  35
  36 if ![info exists objdump] then {
  37     set objdump [findfile $base_dir/../binutils/objdump]
  38 }
  39
  40 if ![info exists objcopy] then {
  41     set objcopy [findfile $base_dir/../binutils/objcopy]
  42 }
  43
  44 if ![info exists ar] then {
  45     set ar [findfile $base_dir/../binutils/ar]
  46 }
  47
  48 if ![info exists strip] then {
  49     set strip [findfile $base_dir/../binutils/strip-new $base_dir/../binutils/strip-new [transform strip]]
  50 }
  51
  52 if ![info exists size] then {
  53     set size [findfile $base_dir/../binutils/size]
  54 }
  55
  56 remote_exec host "mkdir -p tmpdir"
  57
  58 # Make symlinks from tmpdir/ld to the linker and assembler in the
  59 # build tree, so that we can use a -B option to gcc to force it to use
  60 # the newly built linker and assembler.
  61 if {![file isdirectory tmpdir/ld]} then {
  62     catch "exec mkdir tmpdir/ld" status
  63     catch "exec ln -s ../../ld-new tmpdir/ld/ld" status
  64     catch "exec ln -s ld tmpdir/ld/collect-ld" status
  65     catch "exec ln -s ../../../gas/as-new tmpdir/ld/as" status
  66 }
  67 set gcc_B_opt "-B[pwd]/tmpdir/ld/"
  68
  69 # load the linker path
  70 set ld_L_opt ""
  71 if {[file exists tmpdir/libpath.exp]} {
  72     load_lib tmpdir/libpath.exp
  73
  74     foreach dir $libpath {
  75         append ld_L_opt " -L$dir"
  76     }
  77 }
  78
  79 # Many ELF testcases expect that "-z relro" is off.
  80 set ld_elf_shared_opt "-z norelro"
  81
  82 # The "make check" target in the Makefile passes in
  83 # "CC=$(CC_FOR_TARGET)".  But, if the user invokes runtest directly
  84 # (as when testing an installed linker), these flags may not be set.
  85 if {![info exists CC]} {
  86     set CC [find_gcc]
  87 }
  88 if {![info exists CFLAGS]} {
  89     set CFLAGS "-g -O2"
  90 }
  91 if {![info exists CXX]} {
  92     set CXX [find_g++]
  93 }
  94 if {![info exists CXXFLAGS]} {
  95     set CXXFLAGS ""
  96 }
  97
  98 # This allows us to run the linker testsuite with clang as the compilation
  99 # driver instead of gcc.  The syntax of the overrides are as follows, one
 100 # per line:
 101 #
 102 #  '#': Silence information about the changes to the command line arguments.
 103 #
 104 #  '^': Add FOO as a new argument at the beginning of the command line.
 105 #
 106 #  '+': Add FOO as a new argument at the end of the command line.
 107 #
 108 #  's/XXX/YYY/': Substitute the regular expression XXX with YYY in the command
 109 #  line.
 110 #
 111 #  'xOPTION': Removes all instances of the literal argument OPTION.
 112 #
 113 #  'XOPTION': Removes all instances of the literal argument OPTION,
 114 #  and the following argument.
 115 #
 116 #  'Ox': Removes all flags matching 'O' or 'O[sz0-9]' and adds 'Ox'
 117 #  at the end of the command line.
 118 #
 119 # \param OS - The stream to write edit information to.
 120 # \param Args - The vector of command line arguments.
 121 # \param Edit - The override command to perform.
 122 # \param SavedStrings - Set to use for storing string representations.
 123
 124 # Only set up the environment variable if the user has not already provided one.
 125 if {! [info exists env(CCC_OVERRIDE_OPTIONS)]} {
 126     set env(CCC_OVERRIDE_OPTIONS) "#\
 127   +-Wno-unused-command-line-argument \
 128   +-Wno-unknown-attributes \
 129   +-Wno-tautological-compare \
 130   +-Wno-ignored-optimization-argument \
 131   +-Wno-deprecated \
 132   +-fuse-ld=$ld \
 133   x-Wa,--elf-stt-common=yes \
 134   x-Wa,-mx86-used-note=no \
 135   x-Wa,-mx86-used-note=yes \
 136   x-Wa,-madd-bnd-prefix \
 137   x-fno-early-inlining \
 138   x-fno-toplevel-reorder \
 139   x-flto-partition=none \
 140   x-feliminate-dwarf2-dups \
 141   s/-Wa,-mrelax-relocations=yes,-mx86-used-note=yes/-Wa,-mrelax-relocations=yes/ \
 142   s/-Wa,--compress-debug-sections=zlib/-Wa,-compress-debug-sections=zlib/ \
 143   s/-Wa,--compress-debug-sections=zlib-gabi/-Wa,-compress-debug-sections=zlib-gabi/ \
 144 "
 145 }
 146
 147 # The mips64-*-linux-gnu compiler defaults to the N32 ABI after
 148 # installed, but to the O32 ABI in the build tree, because of some
 149 # specs-file hacks.  Make sure we use an ABI that is compatible with
 150 # the one we expect.
 151 if {[istarget mips64*-*-linux*] &&
 152     (![board_info [target_info name] exists multilib_flags] ||
 153      ![string match "*-mabi" [board_info [target_info name] multilib_flags]])
 154    } {
 155     append gcc_B_opt " -mabi=n32"
 156 }
 157
 158 if { [istarget rx-*-*] } {
 159     global ASFLAGS
 160     set ASFLAGS "-muse-conventional-section-names"
 161 }
 162
 163 # load the utility procedures
 164 load_lib ld-lib.exp
 165
 166 proc get_target_emul {} {
 167     global target_triplet
 168     global srcdir
 169     set status [catch "exec sh -c \"targ='$target_triplet' && . $srcdir/../configure.tgt && echo \\\$targ_emul\"" result]
 170     if $status { error "Error getting emulation name: $result" }
 171     return $result
 172 }
 173
 174 if ![info exists HOSTING_EMU] { set HOSTING_EMU "-m [get_target_emul]" }
 175
 176 #
 177 # ld_version -- extract and print the version number of ld compiler (GCC)
 178 #
 179 proc ld_version {} {
 180     global ld
 181     default_ld_version $ld
 182 }
 183
 184 #
 185 # ld_exit -- just a stub for ld
 186 #
 187 proc ld_exit {} {
 188 }
 189
 190 #
 191 # ld_start
 192 #       relink the linker
 193 #
 194 proc ld_start { ld target } {
 195         #
 196 }
 197
 198 #
 199 # ld_relocate
 200 #       link an object using relocation
 201 #
 202 proc ld_relocate { ld target objects } {
 203         default_ld_relocate $ld $target $objects
 204 }
 205
 206 #
 207 # ld_link
 208 #       link a program using ld
 209 #
 210 proc ld_link { ld target objects } {
 211         default_ld_link $ld $target $objects
 212 }
 213
 214 #
 215 # ld_compile
 216 #       compile an object using $cc
 217 #
 218 proc ld_compile { cc source object } {
 219         default_ld_compile $cc $source $object
 220 }
 221
 222 #
 223 # ld_assemble
 224 #       assemble a file
 225 #
 226 proc ld_assemble { as source object } {
 227         default_ld_assemble $as "" $source $object
 228 }
 229
 230 #
 231 # ld_assemble_flags
 232 #       assemble a file with extra flags
 233 #
 234 proc ld_assemble_flags { as flags source object } {
 235         default_ld_assemble $as $flags $source $object
 236 }
 237
 238 #
 239 # ld_nm
 240 #       run nm on a file
 241 #
 242 proc ld_nm { nm nmflags object } {
 243         default_ld_nm $nm $nmflags $object
 244 }
 245
 246 #
 247 # ld_exec
 248 #       execute ithe target
 249 #
 250 proc ld_exec { target output } {
 251         default_ld_exec $target $output
 252 }
 253
 254 # From gas-defs.exp, to support run_dump_test.
 255 if ![info exists AS] then {
 256     set AS $as
 257 }
 258
 259 if ![info exists ASFLAGS] then {
 260     set ASFLAGS ""
 261 }
 262
 263 if ![info exists OBJDUMP] then {
 264     set OBJDUMP $objdump
 265 }
 266
 267 if ![info exists OBJDUMPFLAGS] then {
 268     set OBJDUMPFLAGS {}
 269 }
 270
 271 if ![info exists NM] then {
 272     set NM $nm
 273 }
 274
 275 if ![info exists NMFLAGS] then {
 276     set NMFLAGS {}
 277 }
 278
 279 if ![info exists OBJCOPY] then {
 280     set OBJCOPY $objcopy
 281 }
 282
 283 if ![info exists OBJCOPYFLAGS] then {
 284     set OBJCOPYFLAGS {}
 285 }
 286
 287 if ![info exists READELF] then {
 288     set READELF [findfile $base_dir/../binutils/readelf]
 289 }
 290
 291 if ![info exists READELFFLAGS] then {
 292     set READELFFLAGS {}
 293 }
 294
 295 if ![info exists ELFEDIT] then {
 296     set ELFEDIT [findfile $base_dir/../binutils/elfedit]
 297 }
 298
 299 if ![info exists LD] then {
 300     set LD [findfile $base_dir/ld-new ./ld-new [transform ld]]
 301 }
 302
 303 if ![info exists LDFLAGS] then {
 304     set LDFLAGS {}
 305 }
 306
 307 # Set LD_CLASS to "64bit" for a 64-bit *host* linker.
 308 if { ![info exists LD_CLASS] } then {
 309     set REAL_LD [findfile $base_dir/.libs/ld-new .libs/ld-new $LD [transform ld]]
 310     set readelf_output [run_host_cmd "$READELF" "-h $REAL_LD"]
 311     if { [regexp {[ \t]+Class:[ \t]+ELF64} $readelf_output] } then {
 312         set LD_CLASS "64bit"
 313     } else {
 314         set LD_CLASS "32bit"
 315     }
 316 }
 317
 318 # Set PLT_CFLAGS to "-fplt" if target compiler supports it.
 319
 320 if { ![info exists PLT_CFLAGS] } then {
 321     if { [check_compiler_available] } {
 322         # Check if gcc supports -fplt
 323         set flags ""
 324         if [board_info [target_info name] exists cflags] {
 325             append flags " [board_info [target_info name] cflags]"
 326         }
 327         if [board_info [target_info name] exists ldflags] {
 328             append flags " [board_info [target_info name] ldflags]"
 329         }
 330
 331         set basename "tmpdir/plt[pid]"
 332         set src ${basename}.c
 333         set output ${basename}.o
 334         set f [open $src "w"]
 335         puts $f ""
 336         close $f
 337         if [is_remote host] {
 338             set src [remote_download host $src]
 339         }
 340         set plt_available [run_host_cmd_yesno "$CC" "$flags -c -fplt $src -o $output"]
 341         remote_file host delete $src
 342         remote_file host delete $output
 343         file delete $src
 344
 345         if { $plt_available == 1 } then {
 346             set PLT_CFLAGS "-fplt"
 347         } else {
 348             set PLT_CFLAGS ""
 349         }
 350     } else {
 351         set PLT_CFLAGS ""
 352     }
 353 }
 354
 355 # Set NOPIE_CFLAGS to "-fno-PIE" and NOPIE_LDFLAGS to "-no-pie" if
 356 # target compiler supports them.
 357
 358 if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
 359     if { [check_compiler_available] } {
 360         # Check if gcc supports -fno-PIE -no-pie.
 361         set flags ""
 362         if [board_info [target_info name] exists cflags] {
 363             append flags " [board_info [target_info name] cflags]"
 364         }
 365         if [board_info [target_info name] exists ldflags] {
 366             append flags " [board_info [target_info name] ldflags]"
 367         }
 368
 369         set basename "tmpdir/nopie[pid]"
 370         set src ${basename}.c
 371         set output ${basename}
 372         set f [open $src "w"]
 373         puts $f "int main (void) { return 0; }"
 374         close $f
 375         if [is_remote host] {
 376             set src [remote_download host $src]
 377         }
 378         set nopie_available [run_host_cmd_yesno "$CC" "$flags -fno-PIE -no-pie $src -o $output"]
 379         remote_file host delete $src
 380         remote_file host delete $output
 381         file delete $src
 382
 383         if { $nopie_available == 1 } then {
 384             set NOPIE_CFLAGS "-fno-PIE"
 385             set NOPIE_LDFLAGS "-no-pie"
 386         } else {
 387             set NOPIE_CFLAGS ""
 388             set NOPIE_LDFLAGS ""
 389         }
 390     } else {
 391         set NOPIE_CFLAGS ""
 392         set NOPIE_LDFLAGS ""
 393     }
 394 }
 395
 396 # Set NOCF_PROTECTION_CFLAGS to "-fcf-protection=none" if target compiler
 397 # supports it.
 398
 399 if { ![info exists NOCF_PROTECTION_CFLAGS] } then {
 400     if { [check_compiler_available] } {
 401         # Check if gcc supports -fcf-protection=none.
 402         set flags ""
 403         if [board_info [target_info name] exists cflags] {
 404             append flags " [board_info [target_info name] cflags]"
 405         }
 406         if [board_info [target_info name] exists ldflags] {
 407             append flags " [board_info [target_info name] ldflags]"
 408         }
 409
 410         set basename "tmpdir/available[pid]"
 411         set src ${basename}.c
 412         set output ${basename}
 413         set f [open $src "w"]
 414         puts $f "int main (void) { return 0; }"
 415         close $f
 416         if [is_remote host] {
 417             set src [remote_download host $src]
 418         }
 419         set available [run_host_cmd_yesno "$CC" "$flags -fcf-protection=none $src -o $output"]
 420         remote_file host delete $src
 421         remote_file host delete $output
 422         file delete $src
 423
 424         if { $available == 1 } then {
 425             set NOCF_PROTECTION_CFLAGS "-fcf-protection=none"
 426         } else {
 427             set NOCF_PROTECTION_CFLAGS ""
 428         }
 429     } else {
 430         set NOCF_PROTECTION_CFLAGS ""
 431     }
 432 }
 433
 434 # Set GNU2_CFLAGS to "-mtls-dialect=gnu2" if target compiler supports it.
 435
 436 if { ![info exists GNU2_CFLAGS] } then {
 437     if { [check_compiler_available] } {
 438         # Check if gcc supports -mtls-dialect=gnu2
 439         set flags ""
 440         if [board_info [target_info name] exists cflags] {
 441             append flags " [board_info [target_info name] cflags]"
 442         }
 443         if [board_info [target_info name] exists ldflags] {
 444             append flags " [board_info [target_info name] ldflags]"
 445         }
 446
 447         set basename "tmpdir/gnu2[pid]"
 448         set src ${basename}.c
 449         set output ${basename}.o
 450         set f [open $src "w"]
 451         puts $f "__thread int yyy = 100;"
 452         close $f
 453         if [is_remote host] {
 454             set src [remote_download host $src]
 455         }
 456         set gnu2_available [run_host_cmd_yesno "$CC" "$flags -c -mtls-dialect=gnu2 $src -o $output"]
 457         remote_file host delete $src
 458         remote_file host delete $output
 459         file delete $src
 460
 461         if { $gnu2_available == 1 } then {
 462             set GNU2_CFLAGS "-mtls-dialect=gnu2"
 463         } else {
 464             set GNU2_CFLAGS ""
 465         }
 466     } else {
 467         set GNU2_CFLAGS ""
 468     }
 469 }
 470
 471 # Set INT128_CFLAGS to "-DHAS_INT128" if target compiler supports __int128.
 472
 473 if { ![info exists INT128_CFLAGS] } then {
 474     if { [check_compiler_available] } {
 475         # Check if gcc supports __int128.
 476         set flags ""
 477         if [board_info [target_info name] exists cflags] {
 478             append flags " [board_info [target_info name] cflags]"
 479         }
 480         if [board_info [target_info name] exists ldflags] {
 481             append flags " [board_info [target_info name] ldflags]"
 482         }
 483
 484         set basename "tmpdir/int128[pid]"
 485         set src ${basename}.c
 486         set output ${basename}.o
 487         set f [open $src "w"]
 488         puts $f "__int128 a = 42;"
 489         close $f
 490         if [is_remote host] {
 491             set src [remote_download host $src]
 492         }
 493         set int128_available [run_host_cmd_yesno "$CC" "$flags -c $src -o $output"]
 494         remote_file host delete $src
 495         remote_file host delete $output
 496         file delete $src
 497
 498         if { $int128_available == 1 } then {
 499             set INT128_CFLAGS "-DHAS_INT128"
 500         } else {
 501             set INT128_CFLAGS ""
 502         }
 503     } else {
 504         set INT128_CFLAGS ""
 505     }
 506 }
 507
 508 # Set STATIC_LDFLAGS to "-static" if target compiler supports it.
 509
 510 if { ![info exists STATIC_LDFLAGS] } then {
 511     if { [check_compiler_available] } {
 512         # Check if gcc supports -static.
 513         set flags ""
 514         if [board_info [target_info name] exists cflags] {
 515             append flags " [board_info [target_info name] cflags]"
 516         }
 517         if [board_info [target_info name] exists ldflags] {
 518             append flags " [board_info [target_info name] ldflags]"
 519         }
 520
 521         set basename "tmpdir/static[pid]"
 522         set src ${basename}.c
 523         set output ${basename}
 524         set f [open $src "w"]
 525         puts $f "int main (void) { return 0; }"
 526         close $f
 527         if [is_remote host] {
 528             set src [remote_download host $src]
 529         }
 530         set static_available [run_host_cmd_yesno "$CC" "-static $flags $src -o $output"]
 531         remote_file host delete $src
 532         remote_file host delete $output
 533         file delete $src
 534
 535         if { $static_available == 1 } then {
 536             set STATIC_LDFLAGS "-static"
 537         } else {
 538             set STATIC_LDFLAGS ""
 539         }
 540     } else {
 541         set STATIC_LDFLAGS ""
 542     }
 543 }
 544
 545 # Set STATIC_PIE_LDFLAGS to "-static-pie" if target compiler supports it.
 546
 547 if { ![info exists STATIC_PIE_LDFLAGS] } then {
 548     if { [check_compiler_available] } {
 549         # Check if gcc supports -static-pie.
 550         set flags ""
 551         if [board_info [target_info name] exists cflags] {
 552             append flags " [board_info [target_info name] cflags]"
 553         }
 554         if [board_info [target_info name] exists ldflags] {
 555             append flags " [board_info [target_info name] ldflags]"
 556         }
 557
 558         set basename "tmpdir/static[pid]"
 559         set src ${basename}.c
 560         set output ${basename}
 561         set f [open $src "w"]
 562         puts $f "int main (void) { return 0; }"
 563         close $f
 564         if [is_remote host] {
 565             set src [remote_download host $src]
 566         }
 567         set static_available [run_host_cmd_yesno "$CC" "-static-pie $flags $src -o $output"]
 568         remote_file host delete $src
 569         remote_file host delete $output
 570         file delete $src
 571
 572         if { $static_available == 1 } then {
 573             set STATIC_PIE_LDFLAGS "-static-pie"
 574         } else {
 575             set STATIC_PIE_LDFLAGS ""
 576         }
 577     } else {
 578         set STATIC_PIE_LDFLAGS ""
 579     }
 580 }
 581
 582 # Set NOSANTIZE_CFLAGS to "-fno-sanitize=all" if target compiler
 583 # supports it.
 584
 585 if { ![info exists NOSANTIZE_CFLAGS] } then {
 586     if { [check_compiler_available] } {
 587         # Check if gcc supports -fno-sanitize=all.
 588         set flags ""
 589         if [board_info [target_info name] exists cflags] {
 590             append flags " [board_info [target_info name] cflags]"
 591         }
 592         if [board_info [target_info name] exists ldflags] {
 593             append flags " [board_info [target_info name] ldflags]"
 594         }
 595
 596         set basename "tmpdir/available[pid]"
 597         set src ${basename}.c
 598         set output ${basename}
 599         set f [open $src "w"]
 600         puts $f "int main (void) { return 0; }"
 601         close $f
 602         if [is_remote host] {
 603             set src [remote_download host $src]
 604         }
 605         set available [run_host_cmd_yesno "$CC" "$flags -fno-sanitize=all $src -o $output"]
 606         remote_file host delete $src
 607         remote_file host delete $output
 608         file delete $src
 609
 610         if { $available == 1 } then {
 611             set NOSANTIZE_CFLAGS "-fno-sanitize=all"
 612         } else {
 613             set NOSANTIZE_CFLAGS ""
 614         }
 615     } else {
 616         set NOSANTIZE_CFLAGS ""
 617     }
 618 }