ld/testsuite/ld-ifunc/ifunc.exp

   1 # Expect script for linker support of IFUNC symbols and relocations.
   2 #
   3 #   Copyright (C) 2009-2020 Free Software Foundation, Inc.
   4 #   Contributed by Red Hat.
   5 #
   6 # This file is part of the GNU Binutils.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21 # MA 02110-1301, USA.
  22 #
  23 # Written by Nick Clifton <nickc@redhat.com>
  24
  25
  26 if { ![is_elf_format] || ![supports_gnu_osabi]
  27      || [istarget alpha-*-*]
  28      || [istarget arc*-*-*]
  29      || [istarget am33*-*-*]
  30      || [istarget bfin-*-*]
  31      || [istarget cris*-*-*]
  32      || [istarget frv-*-*]
  33      || [istarget lm32-*-*]
  34      || [istarget m32r-*-*]
  35      || [istarget m68k-*-*]
  36      || [istarget microblaze-*-*]
  37      || [istarget mips*-*-*]
  38      || [istarget mn10300-*-*]
  39      || [istarget nds32*-*-*]
  40      || [istarget nios2-*-*]
  41      || [istarget or1k-*-*]
  42      || [istarget riscv*-*-*]
  43      || [istarget score*-*-*]
  44      || [istarget sh*-*-*]
  45      || [istarget tic6x-*-*]
  46      || [istarget tile*-*-*]
  47      || [istarget vax-*-*] } {
  48     verbose "IFUNC tests not run - target does not support IFUNC"
  49     return
  50 }
  51
  52 # Skip targets where -shared is not supported
  53
  54 if ![check_shared_lib_support] {
  55     return
  56 }
  57
  58 set saved_ASFLAGS "$ASFLAGS"
  59 if { [istarget "i?86-*-*"] || [istarget "x86_64-*-*"] } {
  60     set ASFLAGS "$ASFLAGS -mx86-used-note=no"
  61 }
  62
  63 # This test does not need a compiler...
  64 run_dump_test "ifuncmod5"
  65
  66 set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
  67 foreach t $test_list {
  68     # We need to strip the ".d", but can leave the dirname.
  69     verbose [file rootname $t]
  70     run_dump_test [file rootname $t]
  71 }
  72
  73 # We need a working compiler.  (Strictly speaking this is
  74 # not true, we could use target specific assembler files).
  75 if { ![check_compiler_available] } {
  76     verbose "IFUNC tests not run - no compiler available"
  77     return
  78 }
  79
  80 # A procedure to check the OS/ABI field in the ELF header of a binary file.
  81 proc check_osabi { binary_file expected_osabi } {
  82     global READELF
  83     global READELFFLAGS
  84
  85     catch "exec $READELF $READELFFLAGS --file-header $binary_file > readelf.out" got
  86
  87     if ![string match "" $got] then {
  88         verbose "proc check_osabi: Readelf produced unexpected out processing $binary_file: $got"
  89         return 0
  90     }
  91
  92     if { ![regexp "\n\[ \]*OS/ABI:\[ \]*(.+)\n\[ \]*ABI" \
  93            [file_contents readelf.out] nil osabi] } {
  94         verbose "proc check_osabi: Readelf failed to extract an ELF header from $binary_file"
  95         return 0
  96     }
  97
  98     if { $osabi == $expected_osabi } {
  99         return 1
 100     }
 101
 102     verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi"
 103
 104     return 0
 105 }
 106
 107 # A procedure to confirm that a file contains the IFUNC symbol.
 108 # Returns -1 upon error, 0 if the symbol was not found and 1 if it was found.
 109 proc contains_ifunc_symbol { binary_file } {
 110     global READELF
 111     global READELFFLAGS
 112
 113     catch "exec $READELF $READELFFLAGS --symbols $binary_file > readelf.out" got
 114
 115     if ![string match "" $got] then {
 116         verbose "proc contains_ifunc_symbol: Readelf produced unexpected out processing $binary_file: $got"
 117         return -1
 118     }
 119
 120     # Look for a line like this:
 121     #    58: 0000000000400600    30 IFUNC   GLOBAL DEFAULT   12 library_func2
 122     # with perhaps some other info between the visibility and section
 123
 124     if { ![regexp ".*\[ \]*IFUNC\[ \]+GLOBAL\[ \]+DEFAULT .* \[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } {
 125         return 0
 126     }
 127
 128     return 1
 129 }
 130
 131 # A procedure to confirm that a file contains the R_*_IRELATIVE
 132 # relocation.
 133 # Returns -1 upon error, 0 if the relocation was not found and 1 if
 134 # it was found.
 135 proc contains_irelative_reloc { binary_file } {
 136     global READELF
 137     global READELFFLAGS
 138
 139     catch "exec $READELF $READELFFLAGS --relocs --wide $binary_file > readelf.out" got
 140
 141     if ![string match "" $got] then {
 142         verbose "proc contains_irelative_reloc: Readelf produced unexpected out processing $binary_file: $got"
 143         return -1
 144     }
 145
 146     # Look for a line like this:
 147     #    0000000000600ab0  0000000000000025 R_X86_64_IRELATIVE      000000000040061c
 148     #    080496f4  0000002a R_386_IRELATIVE
 149
 150
 151     if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_(\[_0-9A-Z\]+_IREL(|ATIVE)|PARISC_IPLT)\[ \]*\[0-9a-f\]*\n" [file_contents readelf.out]] } {
 152         return 0
 153     }
 154
 155     return 1
 156 }
 157
 158 # A procedure to confirm that a file contains a relocation that references an IFUNC symbol.
 159 # Returns -1 upon error, 0 if the reloc was not found and 1 if it was found.
 160 proc contains_ifunc_reloc { binary_file } {
 161     global READELF
 162     global READELFFLAGS
 163
 164     catch "exec $READELF $READELFFLAGS --relocs $binary_file > readelf.out" got
 165
 166     if ![string match "" $got] then {
 167         verbose "proc contains_ifunc_reloc: Readelf produced unexpected out processing $binary_file: $got"
 168         return -1
 169     }
 170
 171     if [string match "" [file_contents readelf.out]] then {
 172         verbose "No relocs found in $binary_file"
 173         return 0
 174     }
 175
 176     if { ![regexp "\\(\\)" [file_contents readelf.out]] } {
 177         return 0
 178     }
 179
 180     return 1
 181 }
 182
 183 set fails 0
 184
 185 # Create the object files, libraries and executables.
 186 if ![ld_compile "$CC -c -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] {
 187     fail "Could not create a PIC object file"
 188     set fails [expr $fails + 1]
 189 }
 190 if ![ld_compile "$CC -c $NOPIE_CFLAGS" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] {
 191     fail "Could not create a non-PIC object file"
 192     set fails [expr $fails + 1]
 193 }
 194 if ![ld_compile "$CC -c -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] {
 195     fail "Could not create a PIC object file containing an IFUNC symbol"
 196     set fails [expr $fails + 1]
 197 }
 198 if ![ld_compile "$CC -c $NOPIE_CFLAGS -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] {
 199     fail "Could not create a non-PIC object file containing an IFUNC symbol"
 200     set fails [expr $fails + 1]
 201 }
 202 if ![ld_compile "$CC -c -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] {
 203     fail "Could not create an ordinary non-PIC object file"
 204     set fails [expr $fails + 1]
 205 }
 206 if ![ld_assemble $as "$srcdir/ld-elf/empty.s" "tmpdir/empty.o"] {
 207     fail "Could not create an empty object file"
 208     set fails [expr $fails + 1]
 209 }
 210 if ![ld_compile "$CC -c" "$srcdir/$subdir/test-1.c" "tmpdir/test-1.o"] {
 211     fail "Could not create test-1.o"
 212     set fails [expr $fails + 1]
 213 }
 214 if ![ld_compile "$CC -fPIC -c" "$srcdir/$subdir/test-2.c" "tmpdir/test-2.o"] {
 215     fail "Could not create test-2.o"
 216     set fails [expr $fails + 1]
 217 }
 218
 219 if { $fails != 0 } {
 220     return
 221 }
 222
 223 if ![ld_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] {
 224     fail "Could not create a shared library containing an IFUNC symbol"
 225     set fails [expr $fails + 1]
 226 }
 227 if ![ar_simple_create $ar "" "tmpdir/libifunc.a" "tmpdir/static_ifunc.o"] {
 228     fail "Could not create a static library containing an IFUNC symbol"
 229     set fails [expr $fails + 1]
 230 }
 231
 232 if { $fails != 0 } {
 233     return
 234 }
 235
 236 if ![ld_link $CC "tmpdir/dynamic_prog" "-Wl,--no-as-needed,-rpath=./tmpdir,-Bdynamic -Ltmpdir tmpdir/shared_prog.o -lshared_ifunc"] {
 237     fail "Could not link a dynamic executable"
 238     set fails [expr $fails + 1]
 239 }
 240 if ![ld_link $CC "tmpdir/local_prog" "$NOPIE_LDFLAGS -Wl,--no-as-needed,-rpath=./tmpdir -Ltmpdir tmpdir/static_prog.o -lifunc"] {
 241     fail "Could not link a dynamic executable using local ifunc"
 242     set fails [expr $fails + 1]
 243 }
 244 if ![string match "" $STATIC_LDFLAGS] {
 245     if ![ld_link $CC "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] {
 246         fail "Could not link a static executable"
 247         set fails [expr $fails + 1]
 248     }
 249 }
 250 if ![ld_link $ld "tmpdir/static_nonifunc_prog" "-static tmpdir/empty.o"] {
 251     fail "Could not link a non-ifunc using static executable"
 252     set fails [expr $fails + 1]
 253 }
 254 if ![ld_link $CC "tmpdir/test-1" "-Wl,--no-as-needed,-rpath=./tmpdir tmpdir/test-1.o tmpdir/libshared_ifunc.so"] {
 255     fail "Could not link test-1"
 256     set fails [expr $fails + 1]
 257 }
 258 if ![ld_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] {
 259     fail "Could not link libtest-2.so"
 260     set fails [expr $fails + 1]
 261 }
 262 if ![ld_link $ld "tmpdir/libtest-2-now.so" "-shared -z now tmpdir/test-2.o"] {
 263     fail "Could not link libtest-2-now.so"
 264     set fails [expr $fails + 1]
 265 }
 266
 267 if { $fails == 0 } {
 268   pass "Building ifunc binaries"
 269   set fails 0
 270 } else {
 271     return
 272 }
 273
 274 # Check the executables and shared libraries
 275 #
 276 # The linked ifunc using executables and the shared library containing
 277 # ifunc should have an OSABI field of GNU.  The linked non-ifunc using
 278 # executable should have an OSABI field of NONE (aka System V).
 279
 280 switch -glob $target_triplet {
 281     hppa*-*-linux* { set expected_none {UNIX - GNU} }
 282     default { set expected_none {UNIX - System V} }
 283 }
 284
 285 if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - GNU}]} {
 286     fail "Shared libraries containing ifunc does not have an OS/ABI field of GNU"
 287     set fails [expr $fails + 1]
 288 }
 289 if {! [check_osabi tmpdir/local_prog {UNIX - GNU}]} {
 290     fail "Local ifunc-using executable does not have an OS/ABI field of GNU"
 291     set fails [expr $fails + 1]
 292 }
 293 if { ![string match "" $STATIC_LDFLAGS] \
 294      && ![check_osabi tmpdir/static_prog {UNIX - GNU}]} {
 295     fail "Static ifunc-using executable does not have an OS/ABI field of GNU"
 296     set fails [expr $fails + 1]
 297 }
 298 if {! [check_osabi tmpdir/dynamic_prog $expected_none]} {
 299     fail "Dynamic ifunc-using executable does not have an OS/ABI field of $expected_none"
 300     set fails [expr $fails + 1]
 301 }
 302 if {! [check_osabi tmpdir/static_nonifunc_prog $expected_none]} {
 303     fail "Static non-ifunc-using executable does not have an OS/ABI field of $expected_none"
 304     set fails [expr $fails + 1]
 305 }
 306
 307 # The linked ifunc using executables and the shared library containing
 308 # ifunc should contain an IFUNC symbol.  The non-ifunc using executable
 309 # should not.
 310
 311 if {[contains_ifunc_symbol tmpdir/libshared_ifunc.so] != 1} {
 312     fail "Shared libraries containing ifunc does not contain an IFUNC symbol"
 313     set fails [expr $fails + 1]
 314 }
 315 if {[contains_ifunc_symbol tmpdir/local_prog] != 1} {
 316     fail "Local ifunc-using executable does not contain an IFUNC symbol"
 317     set fails [expr $fails + 1]
 318 }
 319 if { ![string match "" $STATIC_LDFLAGS] \
 320      && [contains_ifunc_symbol tmpdir/static_prog] != 1} {
 321     fail "Static ifunc-using executable does not contain an IFUNC symbol"
 322     set fails [expr $fails + 1]
 323 }
 324 if {[contains_ifunc_symbol tmpdir/dynamic_prog] != 0} {
 325     fail "Dynamic ifunc-using executable contains an IFUNC symbol"
 326     set fails [expr $fails + 1]
 327 }
 328 if {[contains_ifunc_symbol tmpdir/static_nonifunc_prog] != 0} {
 329     fail "Static non-ifunc-using executable contains an IFUNC symbol"
 330     set fails [expr $fails + 1]
 331 }
 332 if {[contains_ifunc_symbol tmpdir/test-1] != 0} {
 333     fail "test-1 contains IFUNC symbols"
 334     set fails [expr $fails + 1]
 335 }
 336 if {[contains_ifunc_symbol tmpdir/libtest-2.so] != 0} {
 337     fail "libtest-2.so contains IFUNC symbols"
 338     set fails [expr $fails + 1]
 339 }
 340 if {[contains_ifunc_symbol tmpdir/libtest-2-now.so] != 0} {
 341     fail "libtest-2-now.so contains IFUNC symbols"
 342     set fails [expr $fails + 1]
 343 }
 344
 345 # The linked ifunc using executables and shared libraries should contain
 346 # a dynamic reloc referencing the IFUNC symbol.  (Even the static
 347 # executable which should have a dynamic section created for it).  The
 348 # non-ifunc using executable should not.
 349
 350 if {[contains_irelative_reloc tmpdir/libshared_ifunc.so] != 1} {
 351     fail "ifunc-using shared library does not contain R_*_IRELATIVE relocation"
 352     set fails [expr $fails + 1]
 353 }
 354 if {[contains_irelative_reloc tmpdir/local_prog] != 1} {
 355     fail "Local ifunc-using executable does not contain R_*_IRELATIVE relocation"
 356     set fails [expr $fails + 1]
 357 }
 358 if { ![string match "" $STATIC_LDFLAGS] \
 359     && [contains_irelative_reloc tmpdir/static_prog] != 1} {
 360     fail "Static ifunc-using executable does not contain R_*_IRELATIVE relocation"
 361     set fails [expr $fails + 1]
 362 }
 363 if {[contains_ifunc_reloc tmpdir/dynamic_prog] != 0} {
 364     fail "Dynamic ifunc-using executable contains a reloc against an IFUNC symbol"
 365     set fails [expr $fails + 1]
 366 }
 367 if {[contains_ifunc_reloc tmpdir/static_nonifunc_prog] == 1} {
 368     fail "Static non-ifunc-using executable contains a reloc against an IFUNC symbol!"
 369     set fails [expr $fails + 1]
 370 }
 371
 372 if { $fails == 0 } {
 373   pass "Checking ifunc binaries"
 374 }
 375
 376 run_cc_link_tests [list \
 377     [list \
 378         "Build libpr16467a.so" \
 379         "-shared -Wl,--version-script=pr16467a.map" \
 380         "-fPIC" \
 381         { pr16467a.c } \
 382         {} \
 383         "libpr16467a.so" \
 384     ] \
 385     [list \
 386         "Build libpr16467b.a" \
 387         "" \
 388         "-fPIC" \
 389         { pr16467b.c } \
 390         {} \
 391         "libpr16467b.a" \
 392     ] \
 393     [list \
 394         "Build libpr16467b.so" \
 395         "-shared tmpdir/pr16467b.o tmpdir/libpr16467a.so \
 396          -Wl,--version-script=pr16467b.map" \
 397         "-fPIC" \
 398         { dummy.c } \
 399         {} \
 400         "libpr16467b.so" \
 401     ] \
 402     [list \
 403         "Build libpr16467c.a" \
 404         "" \
 405         "" \
 406         { pr16467c.c } \
 407         {} \
 408         "libpr16467c.a" \
 409     ] \
 410     [list \
 411         "Build libpr16467an.so" \
 412         "-shared -Wl,-z,now -Wl,--version-script=pr16467a.map" \
 413         "-fPIC" \
 414         { pr16467a.c } \
 415         {} \
 416         "libpr16467an.so" \
 417     ] \
 418     [list \
 419         "Build libpr16467bn.so" \
 420         "-shared tmpdir/pr16467b.o tmpdir/libpr16467an.so \
 421          -Wl,--version-script=pr16467b.map" \
 422         "-fPIC" \
 423         { dummy.c } \
 424         {} \
 425         "libpr16467bn.so" \
 426     ] \
 427 ]
 428
 429 run_ld_link_exec_tests [list \
 430     [list \
 431         "Common symbol override ifunc test 1a" \
 432         "-static" \
 433         "" \
 434         { ifunc-common-1a.c ifunc-common-1b.c } \
 435         "ifunc-common-1a" \
 436         "ifunc-common-1.out" \
 437         "-g" \
 438     ] \
 439     [list \
 440         "Common symbol override ifunc test 1b" \
 441         "-static" \
 442         "" \
 443         { ifunc-common-1b.c ifunc-common-1a.c } \
 444         "ifunc-common-1b" \
 445         "ifunc-common-1.out" \
 446         "-g" \
 447     ] \
 448 ]
 449
 450 # Run-time tests which require working IFUNC support.
 451 if { ![check_ifunc_available] } {
 452     return
 453 }
 454
 455 run_cc_link_tests [list \
 456     [list \
 457         "Build ifunc-lib.so" \
 458         "-shared" \
 459         "-fPIC" \
 460         { ifunc-lib.c } \
 461         {} \
 462         "libifunc-lib.so" \
 463     ] \
 464     [list \
 465         "Build ifunc-libn.so" \
 466         "-shared -Wl,-z,now" \
 467         "-fPIC" \
 468         { ifunc-lib.c } \
 469         {} \
 470         "libifunc-libn.so" \
 471     ] \
 472 ]
 473
 474 run_ld_link_exec_tests [list \
 475     [list \
 476         "Run pr16467" \
 477         "-Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467b.so tmpdir/libpr16467a.so" \
 478         "" \
 479         { dummy.c } \
 480         "pr16467" \
 481         "pr16467.out" \
 482         "" \
 483     ] \
 484     [list \
 485         "Run pr16467 (-z now)" \
 486         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467bn.so tmpdir/libpr16467an.so" \
 487         "" \
 488         { dummy.c } \
 489         "pr16467n" \
 490         "pr16467.out" \
 491         "" \
 492     ] \
 493     [list \
 494         "Run ifunc-main" \
 495         "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 496         "" \
 497         { ifunc-main.c } \
 498         "ifunc-main" \
 499         "ifunc-main.out" \
 500     ] \
 501     [list \
 502         "Run ifunc-main with -fpic" \
 503         "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 504         "" \
 505         { ifunc-main.c } \
 506         "ifunc-main" \
 507         "ifunc-main.out" \
 508         "-fpic" \
 509     ] \
 510     [list \
 511         "Run ifunc-main (-z now)" \
 512         "-Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 513         "" \
 514         { ifunc-main.c } \
 515         "ifunc-mainn" \
 516         "ifunc-main.out" \
 517     ] \
 518     [list \
 519         "Run ifunc-main with PIE (-z now)" \
 520         "-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 521         "" \
 522         { ifunc-main.c } \
 523         "ifunc-mainpn" \
 524         "ifunc-main.out" \
 525         "-fpie" \
 526     ] \
 527 ]
 528
 529 # Run-time tests which require working ifunc attribute support.
 530 if { ![check_ifunc_attribute_available] } {
 531     return
 532 }
 533
 534 run_cc_link_tests [list \
 535     [list \
 536         "Build pr18808a.o" \
 537         "" \
 538         "" \
 539         { pr18808a.c } \
 540         "" \
 541         "" \
 542     ] \
 543     [list \
 544         "Build libpr18808.so" \
 545         "-shared" \
 546         "-fPIC -O2 -g" \
 547         { pr18808b.c } \
 548         {} \
 549         "libpr18808.so" \
 550     ] \
 551     [list \
 552         "Build libpr18808n.so" \
 553         "-shared -Wl,-z,now" \
 554         "-fPIC -O2 -g" \
 555         { pr18808b.c } \
 556         {} \
 557         "libpr18808n.so" \
 558     ] \
 559     [list \
 560         "Build pr18841a.o" \
 561         "" \
 562         "$NOPIE_CFLAGS" \
 563         { pr18841a.c } \
 564         "" \
 565         "" \
 566     ] \
 567     [list \
 568         "Build libpr18841b.so" \
 569         "-shared" \
 570         "-fPIC -O0 -g" \
 571         { pr18841b.c } \
 572         {} \
 573         "libpr18841b.so" \
 574     ] \
 575     [list \
 576         "Build libpr18841c.so" \
 577         "-shared" \
 578         "-fPIC -O0 -g" \
 579         { pr18841c.c } \
 580         {} \
 581         "libpr18841c.so" \
 582     ] \
 583     [list \
 584         "Build libpr18841bn.so" \
 585         "-Wl,-z,now -shared" \
 586         "-fPIC -O0 -g" \
 587         { pr18841b.c } \
 588         {} \
 589         "libpr18841bn.so" \
 590     ] \
 591     [list \
 592         "Build libpr18841cn.so" \
 593         "-shared" \
 594         "-Wl,-z,now -fPIC -O0 -g" \
 595         { pr18841c.c } \
 596         {} \
 597         "libpr18841cn.so" \
 598     ] \
 599     [list \
 600         "Build libpr23169a.so" \
 601         "-shared" \
 602         "-fPIC -O2 -g" \
 603         { pr23169a.c } \
 604         {} \
 605         "libpr23169a.so" \
 606     ] \
 607     [list \
 608         "Build libpr23169b.so" \
 609         "-shared -Wl,-z,now" \
 610         "-fPIC -O2 -g" \
 611         { pr23169a.c } \
 612         {} \
 613         "libpr23169b.so" \
 614     ] \
 615     [list \
 616         "Build pr23169a" \
 617         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 618         "$NOPIE_CFLAGS -O2 -g" \
 619         { pr23169b.c pr23169c.c } \
 620         {{readelf {--dyn-syms} pr23169a.rd} \
 621          {readelf {-r -W} pr23169b.rd}} \
 622         "pr23169a" \
 623     ] \
 624     [list \
 625         "Build pr23169b" \
 626         "-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 627         "-fPIE -O2 -g" \
 628         { pr23169b.c pr23169c.c } \
 629         {{readelf {--dyn-syms} pr23169c.rd} \
 630          {readelf {-r -W} pr23169b.rd}} \
 631         "pr23169b" \
 632     ] \
 633     [list \
 634         "Build pr23169c" \
 635         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 636         "-fPIE -O2 -g" \
 637         { pr23169b.c pr23169c.c } \
 638         {{readelf {--dyn-syms} pr23169c.rd} \
 639          {readelf {-r -W} pr23169b.rd}} \
 640         "pr23169c" \
 641     ] \
 642     [list \
 643         "Build pr23169d" \
 644         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 645         "$NOPIE_CFLAGS -O2 -g" \
 646         { pr23169b.c pr23169c.c } \
 647         {{readelf {--dyn-syms} pr23169a.rd} \
 648          {readelf {-r -W} pr23169b.rd}} \
 649         "pr23169d" \
 650     ] \
 651     [list \
 652         "Build pr23169e" \
 653         "-pie -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 654         "-fPIE -O2 -g" \
 655         { pr23169b.c pr23169c.c } \
 656         {{readelf {--dyn-syms} pr23169c.rd} \
 657          {readelf {-r -W} pr23169b.rd}} \
 658         "pr23169e" \
 659     ] \
 660     [list \
 661         "Build pr23169f" \
 662         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 663         "-fPIE -O2 -g" \
 664         { pr23169b.c pr23169c.c } \
 665         {{readelf {--dyn-syms} pr23169c.rd} \
 666          {readelf {-r -W} pr23169b.rd}} \
 667         "pr23169f" \
 668     ] \
 669 ]
 670
 671 run_ld_link_exec_tests [list \
 672     [list \
 673         "Run pr18808" \
 674         "-Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808.so" \
 675         "" \
 676         { dummy.c } \
 677         "pr18808" \
 678         "pr18808.out" \
 679     ] \
 680     [list \
 681         "Run pr18808 (-z now)" \
 682         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808n.so" \
 683         "" \
 684         { dummy.c } \
 685         "pr18808n" \
 686         "pr18808.out" \
 687     ] \
 688     [list \
 689         "Run pr18841 with libpr18841b.so" \
 690         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841b.so" \
 691         "$NOPIE_CFLAGS" \
 692         { dummy.c } \
 693         "pr18841b" \
 694         "pr18841.out" \
 695     ] \
 696     [list \
 697         "Run pr18841 with libpr18841c.so" \
 698         "$NOPIE_LDFLAGS -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841c.so" \
 699         "$NOPIE_CFLAGS" \
 700         { dummy.c } \
 701         "pr18841c" \
 702         "pr18841.out" \
 703     ] \
 704     [list \
 705         "Run pr18841 with libpr18841bn.so (-z now)" \
 706         "$NOPIE_LDFLAGS -Wl,-z,now -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841bn.so" \
 707         "$NOPIE_CFLAGS" \
 708         { dummy.c } \
 709         "pr18841bn" \
 710         "pr18841.out" \
 711     ] \
 712     [list \
 713         "Run pr18841 with libpr18841cn.so (-z now)" \
 714         "$NOPIE_LDFLAGS -Wl,-z,now -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841cn.so" \
 715         "$NOPIE_CFLAGS" \
 716         { dummy.c } \
 717         "pr18841cn" \
 718         "pr18841.out" \
 719     ] \
 720 ]
 721
 722 # The pr23169 testcase is not valid.  In general, you can't call ifunc
 723 # resolvers in another binary unless you know what you're doing.  In
 724 # particular you must ensure that the binary containing the resolver
 725 # is relocated before the resolver is called (for example, the
 726 # function addresses returned by the resolver may be loaded from the
 727 # GOT).
 728 # That does not happen for the pr23169 testcase where the resolver is
 729 # in the executable (which is relocated last by ld.so).
 730 if { [isnative]
 731      && !([istarget "powerpc-*-*"]
 732            || [istarget "aarch64*-*-*"]
 733            || [istarget "sparc*-*-*"]) } {
 734 run_ld_link_exec_tests [list \
 735     [list \
 736         "Run pr23169a" \
 737         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 738         "" \
 739         { pr23169b.c pr23169c.c } \
 740         "pr23169a" \
 741         "pass.out" \
 742         "$NOPIE_CFLAGS -O2 -g" \
 743     ] \
 744     [list \
 745         "Run pr23169b" \
 746         "-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 747         "" \
 748         { pr23169b.c pr23169c.c } \
 749         "pr23169b" \
 750         "pass.out" \
 751         "-fPIE -O2 -g" \
 752     ] \
 753     [list \
 754         "Run pr23169c" \
 755         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 756         "" \
 757         { pr23169b.c pr23169c.c } \
 758         "pr23169c" \
 759         "pass.out" \
 760         "-fPIE -O2 -g" \
 761     ] \
 762     [list \
 763         "Run pr23169d" \
 764         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 765         "" \
 766         { pr23169b.c pr23169c.c } \
 767         "pr23169d" \
 768         "pass.out" \
 769         "$NOPIE_CFLAGS -O2 -g" \
 770     ] \
 771     [list \
 772         "Run pr23169e" \
 773         "-pie -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 774         "" \
 775         { pr23169b.c pr23169c.c } \
 776         "pr23169e" \
 777         "pass.out" \
 778         "-fPIE -O2 -g" \
 779     ] \
 780     [list \
 781         "Run pr23169f" \
 782         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 783         "" \
 784         { pr23169b.c pr23169c.c } \
 785         "pr23169f" \
 786         "pass.out" \
 787         "-fPIE -O2 -g" \
 788     ] \
 789 ]
 790 if { $STATIC_PIE_LDFLAGS != "" } then {
 791     run_ld_link_exec_tests [list \
 792         [list \
 793             "Run pr23169g" \
 794             "$STATIC_PIE_LDFLAGS" \
 795             "" \
 796             { pr23169a.c pr23169b.c pr23169c.c } \
 797             "pr23169g" \
 798             "pass.out" \
 799             "-fPIE -O2 -g" \
 800         ] \
 801 ]
 802 }
 803 }
 804
 805 set ASFLAGS "$saved_ASFLAGS"