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