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