ld/testsuite/config/default.exp

   1 # Basic expect script for LD Regression Tests
   2 #   Copyright (C) 1993-2022 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 if {![info exists CC]} {
  80     set CC gcc
  81 }
  82 if {![info exists CFLAGS]} {
  83     set CFLAGS "-g -O2"
  84 }
  85 if {![info exists CC_FOR_TARGET]} {
  86     set CC_FOR_TARGET [find_gcc]
  87 }
  88 if {![info exists CFLAGS_FOR_TARGET]} {
  89     set CFLAGS_FOR_TARGET "-g -O2"
  90 }
  91 if {![info exists CXX_FOR_TARGET]} {
  92     set CXX_FOR_TARGET [find_g++]
  93 }
  94 if {![info exists CXXFLAGS_FOR_TARGET]} {
  95     set CXXFLAGS_FOR_TARGET ""
  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=$ld \
 133   x-Wa,--elf-stt-common=yes \
 134   x-Wa,-mx86-used-note=no \
 135   x-Wa,-mx86-used-note=yes \
 136   x-Wa,-madd-bnd-prefix \
 137   x-fno-early-inlining \
 138   x-fno-toplevel-reorder \
 139   x-flto-partition=none \
 140   x-feliminate-dwarf2-dups \
 141   s/-Wa,-mrelax-relocations=yes,-mx86-used-note=yes/-Wa,-mrelax-relocations=yes/ \
 142   s/-Wa,--compress-debug-sections=zlib/-Wa,-compress-debug-sections=zlib/ \
 143   s/-Wa,--compress-debug-sections=zlib-gabi/-Wa,-compress-debug-sections=zlib-gabi/ \
 144 "
 145 }
 146
 147 # The mips64-*-linux-gnu compiler defaults to the N32 ABI after
 148 # installed, but to the O32 ABI in the build tree, because of some
 149 # specs-file hacks.  Make sure we use an ABI that is compatible with
 150 # the one we expect.
 151 if {[istarget mips64*-*-linux*] &&
 152     (![board_info [target_info name] exists multilib_flags] ||
 153      ![string match "*-mabi" [board_info [target_info name] multilib_flags]])
 154    } {
 155     append gcc_B_opt " -mabi=n32"
 156 }
 157
 158 if { [istarget rx-*-*] } {
 159     global ASFLAGS
 160     set ASFLAGS "-muse-conventional-section-names"
 161 }
 162
 163 # Blackfin ELF targets require selection of an explicit CPU.  Use the sim.
 164 if {[istarget bfin*-elf*]} {
 165     append gcc_B_opt " -msim"
 166 }
 167
 168 # load the utility procedures
 169 load_lib ld-lib.exp
 170
 171 proc get_target_emul {} {
 172     global target_triplet
 173     global srcdir
 174     set status [catch "exec sh -c \"targ='$target_triplet' && . $srcdir/../configure.tgt && echo \\\$targ_emul\"" result]
 175     if $status { error "Error getting emulation name: $result" }
 176     return $result
 177 }
 178
 179 if ![info exists HOSTING_EMU] { set HOSTING_EMU "-m [get_target_emul]" }
 180
 181 #
 182 # ld_version -- extract and print the version number of ld compiler (GCC)
 183 #
 184 proc ld_version {} {
 185     global ld
 186     default_ld_version $ld
 187 }
 188
 189 #
 190 # ld_exit -- just a stub for ld
 191 #
 192 proc ld_exit {} {
 193 }
 194
 195 #
 196 # ld_start
 197 #       relink the linker
 198 #
 199 proc ld_start { ld target } {
 200         #
 201 }
 202
 203 #
 204 # ld_relocate
 205 #       link an object using relocation
 206 #
 207 proc ld_relocate { ld target objects } {
 208         default_ld_relocate $ld $target $objects
 209 }
 210
 211 #
 212 # ld_link
 213 #       link a program using ld
 214 #
 215 proc ld_link { ld target objects } {
 216         default_ld_link $ld $target $objects
 217 }
 218
 219 #
 220 # ld_compile
 221 #       compile an object using $cc
 222 #
 223 proc ld_compile { cc source object } {
 224         default_ld_compile $cc $source $object
 225 }
 226
 227 #
 228 # ld_assemble
 229 #       assemble a file
 230 #
 231 proc ld_assemble { as source object } {
 232         default_ld_assemble $as "" $source $object
 233 }
 234
 235 #
 236 # ld_assemble_flags
 237 #       assemble a file with extra flags
 238 #
 239 proc ld_assemble_flags { as flags source object } {
 240         default_ld_assemble $as $flags $source $object
 241 }
 242
 243 #
 244 # ld_nm
 245 #       run nm on a file
 246 #
 247 proc ld_nm { nm nmflags object } {
 248         default_ld_nm $nm $nmflags $object
 249 }
 250
 251 #
 252 # ld_exec
 253 #       execute ithe target
 254 #
 255 proc ld_exec { target output } {
 256         default_ld_exec $target $output
 257 }
 258
 259 # From gas-defs.exp, to support run_dump_test.
 260 if ![info exists AS] then {
 261     set AS $as
 262 }
 263
 264 if ![info exists ASFLAGS] then {
 265     set ASFLAGS ""
 266 }
 267
 268 if ![info exists OBJDUMP] then {
 269     set OBJDUMP $objdump
 270 }
 271
 272 if ![info exists OBJDUMPFLAGS] then {
 273     set OBJDUMPFLAGS {}
 274 }
 275
 276 if ![info exists NM] then {
 277     set NM $nm
 278 }
 279
 280 if ![info exists NMFLAGS] then {
 281     set NMFLAGS {}
 282 }
 283
 284 if ![info exists OBJCOPY] then {
 285     set OBJCOPY $objcopy
 286 }
 287
 288 if ![info exists OBJCOPYFLAGS] then {
 289     set OBJCOPYFLAGS {}
 290 }
 291
 292 if ![info exists RANLIB] then {
 293     set RANLIB [findfile $base_dir/../binutils/ranlib]
 294 }
 295
 296 if ![info exists READELF] then {
 297     set READELF [findfile $base_dir/../binutils/readelf]
 298 }
 299
 300 if ![info exists READELFFLAGS] then {
 301     set READELFFLAGS {}
 302 }
 303
 304 if ![info exists ELFEDIT] then {
 305     set ELFEDIT [findfile $base_dir/../binutils/elfedit]
 306 }
 307
 308 if ![info exists LD] then {
 309     set LD [findfile $base_dir/ld-new ./ld-new [transform ld]]
 310 }
 311
 312 if ![info exists LDFLAGS] then {
 313     set LDFLAGS {}
 314 }
 315
 316 if { ![info exists DT_RELR_LDFLAGS] } then {
 317     if { [supports_dt_relr] } then {
 318         set DT_RELR_LDFLAGS "-z pack-relative-relocs"
 319     } else {
 320         set DT_RELR_LDFLAGS {}
 321     }
 322 }
 323
 324 if { ![info exists DT_RELR_CC_LDFLAGS] } then {
 325     if { [supports_dt_relr] } then {
 326         set DT_RELR_CC_LDFLAGS "-Wl,-z,pack-relative-relocs"
 327     } else {
 328         set DT_RELR_CC_LDFLAGS {}
 329     }
 330 }
 331
 332 if { ![info exists NO_DT_RELR_LDFLAGS] } then {
 333     if { [supports_dt_relr] } then {
 334         set NO_DT_RELR_LDFLAGS "-z nopack-relative-relocs"
 335     } else {
 336         set NO_DT_RELR_LDFLAGS {}
 337     }
 338 }
 339
 340 if { ![info exists NO_DT_RELR_CC_LDFLAGS] } then {
 341     if { [supports_dt_relr] } then {
 342         set NO_DT_RELR_CC_LDFLAGS "-Wl,-z,nopack-relative-relocs"
 343     } else {
 344         set NO_DT_RELR_CC_LDFLAGS {}
 345     }
 346 }
 347
 348 # Set LD_CLASS to "64bit" for a 64-bit *host* linker.
 349 if { ![info exists LD_CLASS] } then {
 350     set REAL_LD [findfile $base_dir/.libs/ld-new .libs/ld-new $LD [transform ld]]
 351     set readelf_output [run_host_cmd "$READELF" "-h $REAL_LD"]
 352     if { [regexp {[ \t]+Class:[ \t]+ELF64} $readelf_output] } then {
 353         set LD_CLASS "64bit"
 354     } else {
 355         set LD_CLASS "32bit"
 356     }
 357 }
 358
 359 # Compiler tests
 360 proc compiler_supports { flag args } {
 361     if { [check_compiler_available] } {
 362         global CC_FOR_TARGET
 363         set flags ""
 364         if [board_info [target_info name] exists cflags] {
 365             append flags " [board_info [target_info name] cflags]"
 366         }
 367         if [board_info [target_info name] exists ldflags] {
 368             append flags " [board_info [target_info name] ldflags]"
 369         }
 370         set fn "cs[pid].c"
 371         set f [open $fn "w"]
 372         if { [llength $args] > 0 } {
 373             puts $f [lindex $args 0]
 374         } else {
 375             puts $f "int main (void) { return 0; }"
 376         }
 377         close $f
 378         set rfn [remote_download host $fn]
 379         set avail [run_host_cmd_yesno "$CC_FOR_TARGET" "$flags $flag $rfn -o /dev/null"]
 380         remote_file host delete $rfn
 381         file delete $fn
 382         return $avail
 383     }
 384     return 0
 385 }
 386
 387 if { ![info exists PLT_CFLAGS] } then {
 388     set PLT_CFLAGS ""
 389     if [compiler_supports "-c -fplt"] {
 390         set PLT_CFLAGS "-fplt"
 391     }
 392 }
 393
 394 if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
 395     set NOPIE_CFLAGS ""
 396     set NOPIE_LDFLAGS ""
 397     if [compiler_supports "-fno-PIE -no-pie"] {
 398         set NOPIE_CFLAGS "-fno-PIE"
 399         set NOPIE_LDFLAGS "-no-pie"
 400     }
 401 }
 402
 403 if { ![info exists NOCF_PROTECTION_CFLAGS] } then {
 404     set NOCF_PROTECTION_CFLAGS ""
 405     if [compiler_supports "-fcf-protection=none"] {
 406         set NOCF_PROTECTION_CFLAGS "-fcf-protection=none"
 407     }
 408 }
 409
 410 if { ![info exists GNU2_CFLAGS] } then {
 411     set GNU2_CFLAGS ""
 412     if [compiler_supports "-c -mtls-dialect=gnu2" "__thread int y = 1;"] {
 413         set GNU2_CFLAGS "-mtls-dialect=gnu2"
 414     }
 415 }
 416
 417 if { ![info exists INT128_CFLAGS] } then {
 418     set INT128_CFLAGS ""
 419     if [compiler_supports "-c" "__int128 a = 42;"] {
 420         set INT128_CFLAGS "-DHAS_INT128"
 421     }
 422 }
 423
 424 if { ![info exists STATIC_LDFLAGS] } then {
 425     set STATIC_LDFLAGS ""
 426     if [compiler_supports "-static"] {
 427         set STATIC_LDFLAGS "-static"
 428     }
 429 }
 430
 431 if { ![info exists STATIC_PIE_LDFLAGS] } then {
 432     set STATIC_PIE_LDFLAGS ""
 433     if [compiler_supports "-static-pie"] {
 434         set STATIC_PIE_LDFLAGS "-static-pie"
 435     }
 436 }
 437
 438 if { ![info exists NOSANITIZE_CFLAGS] } then {
 439     set NOSANITIZE_CFLAGS ""
 440     if [compiler_supports "-fno-sanitize=all"] {
 441         set NOSANITIZE_CFLAGS "-fno-sanitize=all"
 442     }
 443 }
 444
 445 if { ![info exists NOLTO_CFLAGS] } then {
 446     set NOLTO_CFLAGS ""
 447     if [compiler_supports "-fno-lto"] {
 448         set NOLTO_CFLAGS "-fno-lto"
 449     }
 450 }
 451
 452 # Provide dummy libraries that alpha-vms-ld always loads
 453 if { [istarget alpha*-*-*vms*] } {
 454     set src tmpdir/empty.s
 455     set f [open $src "w"]
 456     close $f
 457     if { [ld_assemble $as $src tmpdir/empty.o]
 458          && ![ld_link $LD tmpdir/empty tmpdir/empty.o]
 459          && [regsub -all {[^\n]*: cannot find -l([^\n]*)} $exec_output {tmpdir/lib\1.a } missing_libs] } {
 460         regsub -all {\$} $missing_libs {\\\$} missing_libs
 461         for { set i 0 } { $i < [llength $missing_libs] } { incr i } {
 462             set f [lindex $missing_libs $i]
 463             verbose -log "creating dummy $f"
 464             ar_simple_create $ar {} $f tmpdir/empty.o
 465         }
 466         append LDFLAGS " -Ltmpdir"
 467         unset i missing_libs
 468     }
 469     unset f src
 470 }
 471
 472 set plug_opt ""
 473 if { [check_compiler_available] } {
 474     set plugin_names {
 475         liblto_plugin.so
 476         liblto_plugin-0.dll
 477         cyglto_plugin-0.dll
 478     }
 479     foreach plug $plugin_names {
 480         set plug_so [run_host_cmd $CC_FOR_TARGET "--print-prog-name $plug"]
 481         if { $plug_so eq $plug } then {
 482             set plug_so [run_host_cmd $CC_FOR_TARGET "--print-file-name $plug"]
 483         }
 484         if { $plug_so ne $plug } then {
 485             set plug_opt "--plugin $plug_so"
 486             break
 487         }
 488     }
 489 }
 490
 491 if {[file exists .libs/libdep.so]} {
 492   set dep_plug_opt "--plugin .libs/libdep.so"
 493 } elseif {[file exists .libs/libdep.dll]} {
 494   set dep_plug_opt "--plugin .libs/libdep.dll"
 495 } else {
 496     set dep_plug_opt ""
 497 }