ld/testsuite/config/default.exp

   1 # Basic expect script for LD Regression Tests
   2 #   Copyright (C) 1993-2024 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 env(LD_UNDER_TEST)] {
  25     # LD_UNDER_TEST must be an absolute full path.
  26     if {[file pathtype $env(LD_UNDER_TEST)] ne "absolute"} {
  27         perror "**************************************************"
  28         perror "Environment variable LD_UNDER_TEST ($env(LD_UNDER_TEST)) isn't an absolute full path."
  29         perror "**************************************************"
  30         exit 1
  31     } elseif {![file exists $env(LD_UNDER_TEST)]} {
  32         perror "**************************************************"
  33         perror "Environment variable LD_UNDER_TEST ($env(LD_UNDER_TEST)) doesn't exist."
  34         perror "**************************************************"
  35         exit 1
  36     }
  37     set ld "$env(LD_UNDER_TEST)"
  38     set LD "$ld"
  39 }
  40
  41 if ![info exists ld] then {
  42     set ld [findfile $base_dir/ld-new $base_dir/ld-new [transform ld]]
  43 }
  44
  45 if ![info exists as] then {
  46     set as [findfile $base_dir/../gas/as-new $base_dir/../gas/as-new [transform as]]
  47 }
  48
  49 if ![info exists nm] then {
  50     set nm [findfile $base_dir/../binutils/nm-new $base_dir/../binutils/nm-new [transform nm]]
  51 }
  52
  53 if ![info exists objdump] then {
  54     set objdump [findfile $base_dir/../binutils/objdump]
  55 }
  56
  57 if ![info exists objcopy] then {
  58     set objcopy [findfile $base_dir/../binutils/objcopy]
  59 }
  60
  61 if ![info exists ar] then {
  62     set ar [findfile $base_dir/../binutils/ar]
  63 }
  64
  65 if ![info exists strip] then {
  66     set strip [findfile $base_dir/../binutils/strip-new $base_dir/../binutils/strip-new [transform strip]]
  67 }
  68
  69 if ![info exists size] then {
  70     set size [findfile $base_dir/../binutils/size]
  71 }
  72
  73 remote_exec host "mkdir -p tmpdir"
  74
  75 # Make symlinks from tmpdir/ld to the linker and assembler in the
  76 # build tree, so that we can use a -B option to gcc to force it to use
  77 # the newly built linker and assembler.
  78 # The variable ld_testsuite_bindir allows to provide another directory
  79 # for -B option. This can be useful when launching the testsuite outside
  80 # the build tree as the symlinks will be wrong in this case.
  81 if {[info exists ld_testsuite_bindir]} {
  82     set gcc_B_opt "-B$ld_testsuite_bindir/"
  83 } else {
  84     # Delete tmpdir/ld first to remove tmpdir/ld/ld created by the
  85     # previous LD_UNDER_TEST runs.
  86     file delete -force tmpdir/ld
  87     catch "exec mkdir tmpdir/ld" status
  88     if [info exists env(LD_UNDER_TEST)] {
  89         catch "exec ln -s $env(LD_UNDER_TEST) tmpdir/ld/ld" status
  90     } else {
  91         catch "exec ln -s ../../ld-new tmpdir/ld/ld" status
  92     }
  93     catch "exec ln -s ld tmpdir/ld/collect-ld" status
  94     catch "exec ln -s ../../../gas/as-new tmpdir/ld/as" status
  95     set gcc_B_opt "-B[pwd]/tmpdir/ld/"
  96 }
  97
  98 # load the linker path
  99 set ld_L_opt ""
 100 if {[file exists tmpdir/libpath.exp]} {
 101     load_lib tmpdir/libpath.exp
 102
 103     foreach dir $libpath {
 104         append ld_L_opt " -L$dir"
 105     }
 106 }
 107
 108 if {![info exists CC]} {
 109     set CC gcc
 110 }
 111 if {![info exists CFLAGS]} {
 112     set CFLAGS "-g -O2"
 113 }
 114 if {![info exists CC_FOR_TARGET]} {
 115     set CC_FOR_TARGET [find_gcc]
 116 }
 117 if {![info exists CFLAGS_FOR_TARGET]} {
 118     set CFLAGS_FOR_TARGET "-g -O2"
 119 }
 120 if {![info exists CXX_FOR_TARGET]} {
 121     set CXX_FOR_TARGET [find_g++]
 122 }
 123 if {![info exists CXXFLAGS_FOR_TARGET]} {
 124     set CXXFLAGS_FOR_TARGET ""
 125 }
 126
 127 # This allows us to run the linker testsuite with clang as the compilation
 128 # driver instead of gcc.  The syntax of the overrides are as follows, one
 129 # per line:
 130 #
 131 #  '#': Silence information about the changes to the command line arguments.
 132 #
 133 #  '^': Add FOO as a new argument at the beginning of the command line.
 134 #
 135 #  '+': Add FOO as a new argument at the end of the command line.
 136 #
 137 #  's/XXX/YYY/': Substitute the regular expression XXX with YYY in the command
 138 #  line.
 139 #
 140 #  'xOPTION': Removes all instances of the literal argument OPTION.
 141 #
 142 #  'XOPTION': Removes all instances of the literal argument OPTION,
 143 #  and the following argument.
 144 #
 145 #  'Ox': Removes all flags matching 'O' or 'O[sz0-9]' and adds 'Ox'
 146 #  at the end of the command line.
 147 #
 148 # \param OS - The stream to write edit information to.
 149 # \param Args - The vector of command line arguments.
 150 # \param Edit - The override command to perform.
 151 # \param SavedStrings - Set to use for storing string representations.
 152
 153 # Only set up the environment variable if the user has not already provided one.
 154 if {! [info exists env(CCC_OVERRIDE_OPTIONS)]} {
 155     set env(CCC_OVERRIDE_OPTIONS) "#\
 156   +-Wno-unused-command-line-argument \
 157   +-Wno-unknown-attributes \
 158   +-Wno-tautological-compare \
 159   +-Wno-ignored-optimization-argument \
 160   +-Wno-deprecated \
 161   +-fuse-ld=$ld \
 162   x-Wa,--elf-stt-common=yes \
 163   x-Wa,-mx86-used-note=no \
 164   x-Wa,-mx86-used-note=yes \
 165   x-Wa,-madd-bnd-prefix \
 166   x-fno-early-inlining \
 167   x-fno-toplevel-reorder \
 168   x-flto-partition=none \
 169   x-feliminate-dwarf2-dups \
 170   s/-Wa,-mrelax-relocations=yes,-mx86-used-note=yes/-Wa,-mrelax-relocations=yes/ \
 171   s/-Wa,--compress-debug-sections=zlib/-Wa,-compress-debug-sections=zlib/ \
 172   s/-Wa,--compress-debug-sections=zlib-gabi/-Wa,-compress-debug-sections=zlib-gabi/ \
 173 "
 174 }
 175
 176 # The mips64-*-linux-gnu compiler defaults to the N32 ABI after
 177 # installed, but to the O32 ABI in the build tree, because of some
 178 # specs-file hacks.  Make sure we use an ABI that is compatible with
 179 # the one we expect.
 180 if {[istarget mips64*-*-linux*] &&
 181     (![board_info [target_info name] exists multilib_flags] ||
 182      ![string match "*-mabi" [board_info [target_info name] multilib_flags]])
 183    } {
 184     append gcc_B_opt " -mabi=n32"
 185 }
 186
 187 if { [istarget rx-*-*] } {
 188     global ASFLAGS
 189     set ASFLAGS "-muse-conventional-section-names"
 190 }
 191
 192 # Blackfin ELF targets require selection of an explicit CPU.  Use the sim.
 193 if {[istarget bfin*-elf*]} {
 194     append gcc_B_opt " -msim"
 195 }
 196
 197 # load the utility procedures
 198 load_lib ld-lib.exp
 199
 200 proc get_target_emul {} {
 201     global target_triplet
 202     global srcdir
 203     set status [catch "exec sh -c \"targ='$target_triplet' && . $srcdir/../configure.tgt && echo \\\$targ_emul\"" result]
 204     if $status { error "Error getting emulation name: $result" }
 205     return $result
 206 }
 207
 208 if ![info exists HOSTING_EMU] { set HOSTING_EMU "-m [get_target_emul]" }
 209
 210 #
 211 # ld_version -- extract and print the version number of ld compiler (GCC)
 212 #
 213 proc ld_version {} {
 214     global ld
 215     default_ld_version $ld
 216 }
 217
 218 #
 219 # ld_exit -- just a stub for ld
 220 #
 221 proc ld_exit {} {
 222 }
 223
 224 #
 225 # ld_start
 226 #       relink the linker
 227 #
 228 proc ld_start { ld target } {
 229         #
 230 }
 231
 232 #
 233 # ld_relocate
 234 #       link an object using relocation
 235 #
 236 proc ld_relocate { ld target objects } {
 237         default_ld_relocate $ld $target $objects
 238 }
 239
 240 #
 241 # ld_link
 242 #       link a program using ld
 243 #
 244 proc ld_link { ld target objects } {
 245         default_ld_link $ld $target $objects
 246 }
 247
 248 #
 249 # ld_compile
 250 #       compile an object using $cc
 251 #
 252 proc ld_compile { cc source object } {
 253         default_ld_compile $cc $source $object
 254 }
 255
 256 #
 257 # ld_assemble
 258 #       assemble a file
 259 #
 260 proc ld_assemble { as source object } {
 261         default_ld_assemble $as "" $source $object
 262 }
 263
 264 #
 265 # ld_assemble_flags
 266 #       assemble a file with extra flags
 267 #
 268 proc ld_assemble_flags { as flags source object } {
 269         default_ld_assemble $as $flags $source $object
 270 }
 271
 272 #
 273 # ld_nm
 274 #       run nm on a file
 275 #
 276 proc ld_nm { nm nmflags object } {
 277         default_ld_nm $nm $nmflags $object
 278 }
 279
 280 #
 281 # ld_exec
 282 #       execute ithe target
 283 #
 284 proc ld_exec { target output } {
 285         default_ld_exec $target $output
 286 }
 287
 288 # From gas-defs.exp, to support run_dump_test.
 289 if ![info exists AS] then {
 290     set AS $as
 291 }
 292
 293 if ![info exists ASFLAGS] then {
 294     set ASFLAGS ""
 295 }
 296
 297 if ![info exists OBJDUMP] then {
 298     set OBJDUMP $objdump
 299 }
 300
 301 if ![info exists OBJDUMPFLAGS] then {
 302     set OBJDUMPFLAGS {}
 303 }
 304
 305 if ![info exists NM] then {
 306     set NM $nm
 307 }
 308
 309 if ![info exists NMFLAGS] then {
 310     set NMFLAGS {}
 311 }
 312
 313 if ![info exists OBJCOPY] then {
 314     set OBJCOPY $objcopy
 315 }
 316
 317 if ![info exists OBJCOPYFLAGS] then {
 318     set OBJCOPYFLAGS {}
 319 }
 320
 321 if ![info exists RANLIB] then {
 322     set RANLIB [findfile $base_dir/../binutils/ranlib]
 323 }
 324
 325 if ![info exists READELF] then {
 326     set READELF [findfile $base_dir/../binutils/readelf]
 327 }
 328
 329 if ![info exists READELFFLAGS] then {
 330     set READELFFLAGS {}
 331 }
 332
 333 if ![info exists SIZE] then {
 334     set SIZE [findfile $base_dir/../binutils/size]
 335 }
 336
 337 if ![info exists SIZEFLAGS] then {
 338     set SIZEFLAGS ""
 339 }
 340
 341 if ![info exists ELFEDIT] then {
 342     set ELFEDIT [findfile $base_dir/../binutils/elfedit]
 343 }
 344
 345 if ![info exists LD] then {
 346     set LD [findfile $base_dir/ld-new ./ld-new [transform ld]]
 347 }
 348
 349 if ![info exists LDFLAGS] then {
 350     set LDFLAGS {}
 351 }
 352
 353 if { ![info exists DT_RELR_LDFLAGS] } then {
 354     if { [supports_dt_relr] } then {
 355         set DT_RELR_LDFLAGS "-z pack-relative-relocs"
 356     } else {
 357         set DT_RELR_LDFLAGS {}
 358     }
 359 }
 360
 361 if { ![info exists DT_RELR_CC_LDFLAGS] } then {
 362     if { [supports_dt_relr] } then {
 363         set DT_RELR_CC_LDFLAGS "-Wl,-z,pack-relative-relocs"
 364     } else {
 365         set DT_RELR_CC_LDFLAGS {}
 366     }
 367 }
 368
 369 if { ![info exists NO_DT_RELR_LDFLAGS] } then {
 370     if { [supports_dt_relr] } then {
 371         set NO_DT_RELR_LDFLAGS "-z nopack-relative-relocs"
 372     } else {
 373         set NO_DT_RELR_LDFLAGS {}
 374     }
 375 }
 376
 377 if { ![info exists NO_DT_RELR_CC_LDFLAGS] } then {
 378     if { [supports_dt_relr] } then {
 379         set NO_DT_RELR_CC_LDFLAGS "-Wl,-z,nopack-relative-relocs"
 380     } else {
 381         set NO_DT_RELR_CC_LDFLAGS {}
 382     }
 383 }
 384
 385 # Set LD_CLASS to "64bit" for a 64-bit *host* linker.
 386 if { ![info exists LD_CLASS] } then {
 387     set REAL_LD [findfile $base_dir/.libs/ld-new .libs/ld-new $LD [transform ld]]
 388     set readelf_output [run_host_cmd "$READELF" "-h $REAL_LD"]
 389     if { [regexp {[ \t]+Class:[ \t]+ELF64} $readelf_output] } then {
 390         set LD_CLASS "64bit"
 391     } else {
 392         set LD_CLASS "32bit"
 393     }
 394 }
 395
 396 # Compiler tests
 397 proc compiler_supports { flag args } {
 398     if { [check_compiler_available] } {
 399         global CC_FOR_TARGET
 400         set flags ""
 401         if [board_info [target_info name] exists cflags] {
 402             append flags " [board_info [target_info name] cflags]"
 403         }
 404         if [board_info [target_info name] exists ldflags] {
 405             append flags " [board_info [target_info name] ldflags]"
 406         }
 407         set fn "cs[pid].c"
 408         set rfno "cs[pid].exe"
 409         set f [open $fn "w"]
 410         if { [llength $args] > 0 } {
 411             puts $f [lindex $args 0]
 412         } else {
 413             puts $f "int main (void) { return 0; }"
 414         }
 415         close $f
 416         set rfn [remote_download host $fn]
 417         set avail [run_host_cmd_yesno "$CC_FOR_TARGET" "$flags $flag $rfn -o $rfno"]
 418         remote_file host delete $rfno
 419         remote_file host delete $rfn
 420         file delete $fn
 421         return $avail
 422     }
 423     return 0
 424 }
 425
 426 if { ![info exists PLT_CFLAGS] } then {
 427     set PLT_CFLAGS ""
 428     if [compiler_supports "-c -fplt"] {
 429         set PLT_CFLAGS "-fplt"
 430     }
 431 }
 432
 433 if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
 434     set NOPIE_CFLAGS ""
 435     set NOPIE_LDFLAGS ""
 436     if [compiler_supports "-fno-PIE -no-pie"] {
 437         set NOPIE_CFLAGS "-fno-PIE"
 438         set NOPIE_LDFLAGS "-no-pie"
 439     }
 440 }
 441
 442 if { ![info exists NOCF_PROTECTION_CFLAGS] } then {
 443     set NOCF_PROTECTION_CFLAGS ""
 444     if [compiler_supports "-fcf-protection=none"] {
 445         set NOCF_PROTECTION_CFLAGS "-fcf-protection=none"
 446     }
 447 }
 448
 449 if { ![info exists GNU2_CFLAGS] } then {
 450     set GNU2_CFLAGS ""
 451     if [compiler_supports "-c -mtls-dialect=gnu2" "__thread int y = 1;"] {
 452         set GNU2_CFLAGS "-mtls-dialect=gnu2"
 453     }
 454 }
 455
 456 if { ![info exists INT128_CFLAGS] } then {
 457     set INT128_CFLAGS ""
 458     if [compiler_supports "-c" "__int128 a = 42;"] {
 459         set INT128_CFLAGS "-DHAS_INT128"
 460     }
 461 }
 462
 463 if { ![info exists STATIC_LDFLAGS] } then {
 464     set STATIC_LDFLAGS ""
 465     if [compiler_supports "-static"] {
 466         set STATIC_LDFLAGS "-static"
 467     }
 468 }
 469
 470 if { ![info exists STATIC_PIE_LDFLAGS] } then {
 471     set STATIC_PIE_LDFLAGS ""
 472     if [compiler_supports "-static-pie"] {
 473         set STATIC_PIE_LDFLAGS "-static-pie"
 474     }
 475 }
 476
 477 if { ![info exists NOSANITIZE_CFLAGS] } then {
 478     set NOSANITIZE_CFLAGS ""
 479     if [compiler_supports "-fno-sanitize=all"] {
 480         set NOSANITIZE_CFLAGS "-fno-sanitize=all"
 481     }
 482 }
 483
 484 append CFLAGS_FOR_TARGET " $NOSANITIZE_CFLAGS"
 485 append CXXFLAGS_FOR_TARGET " $NOSANITIZE_CFLAGS"
 486
 487 if { ![info exists NOLTO_CFLAGS] } then {
 488     set NOLTO_CFLAGS ""
 489     if [compiler_supports "-fno-lto"] {
 490         set NOLTO_CFLAGS "-fno-lto"
 491     }
 492 }
 493
 494 # Provide dummy libraries that alpha-vms-ld always loads
 495 if { [istarget alpha*-*-*vms*] } {
 496     set src tmpdir/empty.s
 497     set f [open $src "w"]
 498     close $f
 499     if { [ld_assemble $as $src tmpdir/empty.o]
 500          && ![ld_link $LD tmpdir/empty tmpdir/empty.o]
 501          && [regsub -all {[^\n]*: cannot find -l([^\n :]*)[^\n]*} $exec_output {tmpdir/lib\1.a } missing_libs] } {
 502         regsub -all {\$} $missing_libs {\\\$} missing_libs
 503         for { set i 0 } { $i < [llength $missing_libs] } { incr i } {
 504             set f [lindex $missing_libs $i]
 505             verbose -log "creating dummy $f"
 506             ar_simple_create $ar {} $f tmpdir/empty.o
 507         }
 508         append LDFLAGS " -Ltmpdir"
 509         unset i missing_libs
 510     }
 511     unset f src
 512 }
 513
 514 set plug_opt ""
 515 if { [check_compiler_available] } {
 516     set plugin_names {
 517         liblto_plugin.so
 518         liblto_plugin-0.dll
 519         cyglto_plugin-0.dll
 520     }
 521     foreach plug $plugin_names {
 522         set plug_so [string trim [run_host_cmd $CC_FOR_TARGET "--print-prog-name $plug"]]
 523         if { $plug_so eq $plug } then {
 524             set plug_so [string trim [run_host_cmd $CC_FOR_TARGET "--print-file-name $plug"]]
 525         }
 526         if { $plug_so ne $plug } then {
 527             set plug_opt "--plugin $plug_so"
 528             break
 529         }
 530     }
 531 }
 532
 533 if {[file exists .libs/libdep.so]} {
 534   set dep_plug_opt "--plugin .libs/libdep.so"
 535 } elseif {[file exists .libs/libdep.dll]} {
 536   set dep_plug_opt "--plugin .libs/libdep.dll"
 537 } else {
 538     set dep_plug_opt ""
 539 }