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