ld/testsuite/ld-ifunc/ifunc.exp

   1 # Expect script for linker support of IFUNC symbols and relocations.
   2 #
   3 #   Copyright (C) 2009-2023 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 score*-*-*]
  43      || [istarget sh*-*-*]
  44      || [istarget tic6x-*-*]
  45      || [istarget tile*-*-*]
  46      || [istarget vax-*-*] } {
  47     verbose "IFUNC tests not run - target does not support IFUNC"
  48     return
  49 }
  50
  51 # Skip targets where -shared is not supported
  52
  53 if ![check_shared_lib_support] {
  54     return
  55 }
  56
  57 set saved_ASFLAGS "$ASFLAGS"
  58 if { [istarget "i?86-*-*"] || [istarget "x86_64-*-*"] } {
  59     set ASFLAGS "$ASFLAGS -mx86-used-note=no"
  60 }
  61
  62 # This test does not need a compiler...
  63 run_dump_test "ifuncmod5"
  64
  65 set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
  66 foreach t $test_list {
  67     # We need to strip the ".d", but can leave the dirname.
  68     verbose [file rootname $t]
  69     run_dump_test [file rootname $t]
  70 }
  71
  72 # We need a working compiler.  (Strictly speaking this is
  73 # not true, we could use target specific assembler files).
  74 if { ![check_compiler_available] } {
  75     verbose "IFUNC tests not run - no compiler available"
  76     return
  77 }
  78
  79 # A procedure to check the OS/ABI field in the ELF header of a binary file.
  80 proc check_osabi { binary_file expected_osabi } {
  81     global READELF
  82     global READELFFLAGS
  83
  84     catch "exec $READELF $READELFFLAGS --file-header $binary_file > readelf.out" got
  85
  86     if ![string match "" $got] then {
  87         verbose "proc check_osabi: Readelf produced unexpected out processing $binary_file: $got"
  88         return 0
  89     }
  90
  91     if { ![regexp "\n\[ \]*OS/ABI:\[ \]*(.+)\n\[ \]*ABI" \
  92            [file_contents readelf.out] nil osabi] } {
  93         verbose "proc check_osabi: Readelf failed to extract an ELF header from $binary_file"
  94         return 0
  95     }
  96
  97     if { $osabi == $expected_osabi } {
  98         return 1
  99     }
 100
 101     verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi"
 102
 103     return 0
 104 }
 105
 106 # A procedure to confirm that a file contains the IFUNC symbol.
 107 # Returns -1 upon error, 0 if the symbol was not found and 1 if it was found.
 108 proc contains_ifunc_symbol { binary_file } {
 109     global READELF
 110     global READELFFLAGS
 111
 112     catch "exec $READELF $READELFFLAGS --symbols $binary_file > readelf.out" got
 113
 114     if ![string match "" $got] then {
 115         verbose "proc contains_ifunc_symbol: Readelf produced unexpected out processing $binary_file: $got"
 116         return -1
 117     }
 118
 119     # Look for a line like this:
 120     #    58: 0000000000400600    30 IFUNC   GLOBAL DEFAULT   12 library_func2
 121     # with perhaps some other info between the visibility and section
 122
 123     if { ![regexp ".*\[ \]*IFUNC\[ \]+GLOBAL\[ \]+DEFAULT .* \[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } {
 124         return 0
 125     }
 126
 127     return 1
 128 }
 129
 130 # A procedure to confirm that a file contains the R_*_IRELATIVE
 131 # relocation.
 132 # Returns -1 upon error, 0 if the relocation was not found and 1 if
 133 # it was found.
 134 proc contains_irelative_reloc { binary_file } {
 135     global READELF
 136     global READELFFLAGS
 137
 138     catch "exec $READELF $READELFFLAGS --relocs --wide $binary_file > readelf.out" got
 139
 140     if ![string match "" $got] then {
 141         verbose "proc contains_irelative_reloc: Readelf produced unexpected out processing $binary_file: $got"
 142         return -1
 143     }
 144
 145     # Look for a line like this:
 146     #    0000000000600ab0  0000000000000025 R_X86_64_IRELATIVE      000000000040061c
 147     #    080496f4  0000002a R_386_IRELATIVE
 148
 149
 150     if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_(\[_0-9A-Z\]+_IREL(|ATIVE)|PARISC_IPLT).*\n" [file_contents readelf.out]] } {
 151         return 0
 152     }
 153
 154     return 1
 155 }
 156
 157 # A procedure to confirm that a file contains a relocation that references an IFUNC symbol.
 158 # Returns -1 upon error, 0 if the reloc was not found and 1 if it was found.
 159 proc contains_ifunc_reloc { binary_file } {
 160     global READELF
 161     global READELFFLAGS
 162
 163     catch "exec $READELF $READELFFLAGS --relocs $binary_file > readelf.out" got
 164
 165     if ![string match "" $got] then {
 166         verbose "proc contains_ifunc_reloc: Readelf produced unexpected out processing $binary_file: $got"
 167         return -1
 168     }
 169
 170     if [string match "" [file_contents readelf.out]] then {
 171         verbose "No relocs found in $binary_file"
 172         return 0
 173     }
 174
 175     if { ![regexp "\\(\\)" [file_contents readelf.out]] } {
 176         return 0
 177     }
 178
 179     return 1
 180 }
 181
 182 set fails 0
 183
 184 # Disable LTO for these tests.
 185 set cc_cmd "$CC_FOR_TARGET"
 186 if {[check_lto_available]} {
 187    append cc_cmd " -fno-lto"
 188 }
 189
 190 # Create the object files, libraries and executables.
 191 if ![ld_compile "$cc_cmd -c -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] {
 192     fail "Could not create a PIC object file"
 193     set fails [expr $fails + 1]
 194 }
 195 if ![ld_compile "$cc_cmd -c $NOPIE_CFLAGS" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] {
 196     fail "Could not create a non-PIC object file"
 197     set fails [expr $fails + 1]
 198 }
 199 if ![ld_compile "$cc_cmd -c -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] {
 200     fail "Could not create a PIC object file containing an IFUNC symbol"
 201     set fails [expr $fails + 1]
 202 }
 203 if ![ld_compile "$cc_cmd -c $NOPIE_CFLAGS -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] {
 204     fail "Could not create a non-PIC object file containing an IFUNC symbol"
 205     set fails [expr $fails + 1]
 206 }
 207 if ![ld_compile "$cc_cmd -c -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] {
 208     fail "Could not create an ordinary non-PIC object file"
 209     set fails [expr $fails + 1]
 210 }
 211 if ![ld_assemble $as "$srcdir/ld-elf/empty.s" "tmpdir/empty.o"] {
 212     fail "Could not create an empty object file"
 213     set fails [expr $fails + 1]
 214 }
 215 if ![ld_compile "$cc_cmd -c" "$srcdir/$subdir/test-1.c" "tmpdir/test-1.o"] {
 216     fail "Could not create test-1.o"
 217     set fails [expr $fails + 1]
 218 }
 219 if ![ld_compile "$cc_cmd -fPIC -c" "$srcdir/$subdir/test-2.c" "tmpdir/test-2.o"] {
 220     fail "Could not create test-2.o"
 221     set fails [expr $fails + 1]
 222 }
 223
 224 if { $fails != 0 } {
 225     return
 226 }
 227
 228 if ![ld_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] {
 229     fail "Could not create a shared library containing an IFUNC symbol"
 230     set fails [expr $fails + 1]
 231 }
 232 if ![ar_simple_create $ar "" "tmpdir/libifunc.a" "tmpdir/static_ifunc.o"] {
 233     fail "Could not create a static library containing an IFUNC symbol"
 234     set fails [expr $fails + 1]
 235 }
 236
 237 if { $fails != 0 } {
 238     return
 239 }
 240
 241 if ![ld_link $CC_FOR_TARGET "tmpdir/dynamic_prog" "-Wl,--no-as-needed,-rpath=./tmpdir,-Bdynamic -Ltmpdir tmpdir/shared_prog.o -lshared_ifunc"] {
 242     fail "Could not link a dynamic executable"
 243     set fails [expr $fails + 1]
 244 }
 245 if ![ld_link $CC_FOR_TARGET "tmpdir/local_prog" "$NOPIE_LDFLAGS -Wl,--no-as-needed,-rpath=./tmpdir -Ltmpdir tmpdir/static_prog.o -lifunc"] {
 246     fail "Could not link a dynamic executable using local ifunc"
 247     set fails [expr $fails + 1]
 248 }
 249 if ![string match "" $STATIC_LDFLAGS] {
 250     if ![ld_link $CC_FOR_TARGET "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] {
 251         fail "Could not link a static executable"
 252         set fails [expr $fails + 1]
 253     }
 254 }
 255 if ![ld_link $ld "tmpdir/static_nonifunc_prog" "-static tmpdir/empty.o"] {
 256     fail "Could not link a non-ifunc using static executable"
 257     set fails [expr $fails + 1]
 258 }
 259 if ![ld_link $CC_FOR_TARGET "tmpdir/test-1" "-Wl,--no-as-needed,-rpath=./tmpdir tmpdir/test-1.o tmpdir/libshared_ifunc.so"] {
 260     fail "Could not link test-1"
 261     set fails [expr $fails + 1]
 262 }
 263 if ![ld_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] {
 264     fail "Could not link libtest-2.so"
 265     set fails [expr $fails + 1]
 266 }
 267 if ![ld_link $ld "tmpdir/libtest-2-now.so" "-shared -z now tmpdir/test-2.o"] {
 268     fail "Could not link libtest-2-now.so"
 269     set fails [expr $fails + 1]
 270 }
 271
 272 if { $fails == 0 } {
 273   pass "Building ifunc binaries"
 274   set fails 0
 275 } else {
 276     return
 277 }
 278
 279 # Check the executables and shared libraries
 280 #
 281 # The linked ifunc using executables and the shared library containing
 282 # ifunc should have an OSABI field of GNU.  The linked non-ifunc using
 283 # executable should have an OSABI field of NONE (aka System V).
 284
 285 switch -glob $target_triplet {
 286     hppa*-*-linux* { set expected_none {UNIX - GNU} }
 287     default { set expected_none {UNIX - System V} }
 288 }
 289
 290 if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - GNU}]} {
 291     fail "Shared libraries containing ifunc does not have an OS/ABI field of GNU"
 292     set fails [expr $fails + 1]
 293 }
 294 if {! [check_osabi tmpdir/local_prog {UNIX - GNU}]} {
 295     fail "Local ifunc-using executable does not have an OS/ABI field of GNU"
 296     set fails [expr $fails + 1]
 297 }
 298 if { ![string match "" $STATIC_LDFLAGS] \
 299      && ![check_osabi tmpdir/static_prog {UNIX - GNU}]} {
 300     fail "Static ifunc-using executable does not have an OS/ABI field of GNU"
 301     set fails [expr $fails + 1]
 302 }
 303 if {! [check_osabi tmpdir/dynamic_prog $expected_none]} {
 304     fail "Dynamic ifunc-using executable does not have an OS/ABI field of $expected_none"
 305     set fails [expr $fails + 1]
 306 }
 307 if {! [check_osabi tmpdir/static_nonifunc_prog $expected_none]} {
 308     fail "Static non-ifunc-using executable does not have an OS/ABI field of $expected_none"
 309     set fails [expr $fails + 1]
 310 }
 311
 312 # The linked ifunc using executables and the shared library containing
 313 # ifunc should contain an IFUNC symbol.  The non-ifunc using executable
 314 # should not.
 315
 316 if {[contains_ifunc_symbol tmpdir/libshared_ifunc.so] != 1} {
 317     fail "Shared libraries containing ifunc does not contain an IFUNC symbol"
 318     set fails [expr $fails + 1]
 319 }
 320 if {[contains_ifunc_symbol tmpdir/local_prog] != 1} {
 321     fail "Local ifunc-using executable does not contain an IFUNC symbol"
 322     set fails [expr $fails + 1]
 323 }
 324 if { ![string match "" $STATIC_LDFLAGS] \
 325      && [contains_ifunc_symbol tmpdir/static_prog] != 1} {
 326     fail "Static ifunc-using executable does not contain an IFUNC symbol"
 327     set fails [expr $fails + 1]
 328 }
 329 if {[contains_ifunc_symbol tmpdir/dynamic_prog] != 0} {
 330     fail "Dynamic ifunc-using executable contains an IFUNC symbol"
 331     set fails [expr $fails + 1]
 332 }
 333 if {[contains_ifunc_symbol tmpdir/static_nonifunc_prog] != 0} {
 334     fail "Static non-ifunc-using executable contains an IFUNC symbol"
 335     set fails [expr $fails + 1]
 336 }
 337 if {[contains_ifunc_symbol tmpdir/test-1] != 0} {
 338     fail "test-1 contains IFUNC symbols"
 339     set fails [expr $fails + 1]
 340 }
 341 if {[contains_ifunc_symbol tmpdir/libtest-2.so] != 0} {
 342     fail "libtest-2.so contains IFUNC symbols"
 343     set fails [expr $fails + 1]
 344 }
 345 if {[contains_ifunc_symbol tmpdir/libtest-2-now.so] != 0} {
 346     fail "libtest-2-now.so contains IFUNC symbols"
 347     set fails [expr $fails + 1]
 348 }
 349
 350 # The linked ifunc using executables and shared libraries should contain
 351 # a dynamic reloc referencing the IFUNC symbol.  (Even the static
 352 # executable which should have a dynamic section created for it).  The
 353 # non-ifunc using executable should not.
 354
 355 if {[contains_irelative_reloc tmpdir/libshared_ifunc.so] != 1} {
 356     fail "ifunc-using shared library does not contain R_*_IRELATIVE relocation"
 357     set fails [expr $fails + 1]
 358 }
 359 if {[contains_irelative_reloc tmpdir/local_prog] != 1} {
 360     fail "Local ifunc-using executable does not contain R_*_IRELATIVE relocation"
 361     set fails [expr $fails + 1]
 362 }
 363 if { ![string match "" $STATIC_LDFLAGS] \
 364     && ![istarget hppa*-*-*] \
 365     && [contains_irelative_reloc tmpdir/static_prog] != 1} {
 366     fail "Static ifunc-using executable does not contain R_*_IRELATIVE relocation"
 367     set fails [expr $fails + 1]
 368 }
 369 if {[contains_ifunc_reloc tmpdir/dynamic_prog] != 0} {
 370     fail "Dynamic ifunc-using executable contains a reloc against an IFUNC symbol"
 371     set fails [expr $fails + 1]
 372 }
 373 if {[contains_ifunc_reloc tmpdir/static_nonifunc_prog] == 1} {
 374     fail "Static non-ifunc-using executable contains a reloc against an IFUNC symbol!"
 375     set fails [expr $fails + 1]
 376 }
 377
 378 if { $fails == 0 } {
 379   pass "Checking ifunc binaries"
 380 }
 381
 382 run_cc_link_tests [list \
 383     [list \
 384         "Build libpr16467a.so" \
 385         "-shared -Wl,--version-script=pr16467a.map" \
 386         "-fPIC" \
 387         { pr16467a.c } \
 388         {} \
 389         "libpr16467a.so" \
 390     ] \
 391     [list \
 392         "Build libpr16467b.a" \
 393         "" \
 394         "-fPIC" \
 395         { pr16467b.c } \
 396         {} \
 397         "libpr16467b.a" \
 398     ] \
 399     [list \
 400         "Build libpr16467b.so" \
 401         "-shared -Wl,--as-needed tmpdir/pr16467b.o tmpdir/libpr16467a.so \
 402          -Wl,--version-script=pr16467b.map" \
 403         "-fPIC" \
 404         { dummy.c } \
 405         {} \
 406         "libpr16467b.so" \
 407     ] \
 408     [list \
 409         "Build libpr16467c.a" \
 410         "" \
 411         "" \
 412         { pr16467c.c } \
 413         {} \
 414         "libpr16467c.a" \
 415     ] \
 416     [list \
 417         "Build libpr16467an.so" \
 418         "-shared -Wl,-z,now -Wl,--version-script=pr16467a.map" \
 419         "-fPIC" \
 420         { pr16467a.c } \
 421         {} \
 422         "libpr16467an.so" \
 423     ] \
 424     [list \
 425         "Build libpr16467bn.so" \
 426         "-shared -Wl,--as-needed tmpdir/pr16467b.o tmpdir/libpr16467an.so \
 427          -Wl,--version-script=pr16467b.map" \
 428         "-fPIC" \
 429         { dummy.c } \
 430         {} \
 431         "libpr16467bn.so" \
 432     ] \
 433 ]
 434
 435 run_ld_link_exec_tests [list \
 436     [list \
 437         "Common symbol override ifunc test 1a" \
 438         "-static" \
 439         "" \
 440         { ifunc-common-1a.c ifunc-common-1b.c } \
 441         "ifunc-common-1a" \
 442         "ifunc-common-1.out" \
 443         "-g" \
 444     ] \
 445     [list \
 446         "Common symbol override ifunc test 1b" \
 447         "-static" \
 448         "" \
 449         { ifunc-common-1b.c ifunc-common-1a.c } \
 450         "ifunc-common-1b" \
 451         "ifunc-common-1.out" \
 452         "-g" \
 453     ] \
 454 ]
 455
 456 # Run-time tests which require working IFUNC support.
 457 if { ![check_ifunc_available] } {
 458     return
 459 }
 460
 461 run_cc_link_tests [list \
 462     [list \
 463         "Build ifunc-lib.so" \
 464         "-shared" \
 465         "-fPIC" \
 466         { ifunc-lib.c } \
 467         {} \
 468         "libifunc-lib.so" \
 469     ] \
 470     [list \
 471         "Build ifunc-libn.so" \
 472         "-shared -Wl,-z,now" \
 473         "-fPIC" \
 474         { ifunc-lib.c } \
 475         {} \
 476         "libifunc-libn.so" \
 477     ] \
 478 ]
 479
 480 run_ld_link_exec_tests [list \
 481     [list \
 482         "Run pr16467" \
 483         "-Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467b.so tmpdir/libpr16467a.so" \
 484         "" \
 485         { dummy.c } \
 486         "pr16467" \
 487         "pr16467.out" \
 488         "" \
 489     ] \
 490     [list \
 491         "Run pr16467 (-z now)" \
 492         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467bn.so tmpdir/libpr16467an.so" \
 493         "" \
 494         { dummy.c } \
 495         "pr16467n" \
 496         "pr16467.out" \
 497         "" \
 498     ] \
 499     [list \
 500         "Run ifunc-main" \
 501         "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 502         "" \
 503         { ifunc-main.c } \
 504         "ifunc-main" \
 505         "ifunc-main.out" \
 506     ] \
 507     [list \
 508         "Run ifunc-main with -fpic" \
 509         "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 510         "" \
 511         { ifunc-main.c } \
 512         "ifunc-main" \
 513         "ifunc-main.out" \
 514         "-fpic" \
 515     ] \
 516     [list \
 517         "Run ifunc-main (-z now)" \
 518         "-Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 519         "" \
 520         { ifunc-main.c } \
 521         "ifunc-mainn" \
 522         "ifunc-main.out" \
 523     ] \
 524     [list \
 525         "Run ifunc-main with PIE (-z now)" \
 526         "-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 527         "" \
 528         { ifunc-main.c } \
 529         "ifunc-mainpn" \
 530         "ifunc-main.out" \
 531         "-fpie" \
 532     ] \
 533 ]
 534
 535 # Run-time tests which require working ifunc attribute support.
 536 if { ![check_ifunc_attribute_available] } {
 537     return
 538 }
 539
 540 run_cc_link_tests [list \
 541     [list \
 542         "Build pr18808a.o" \
 543         "" \
 544         "" \
 545         { pr18808a.c } \
 546         "" \
 547         "" \
 548     ] \
 549     [list \
 550         "Build libpr18808.so" \
 551         "-shared" \
 552         "-fPIC -O2 -g" \
 553         { pr18808b.c } \
 554         {} \
 555         "libpr18808.so" \
 556     ] \
 557     [list \
 558         "Build libpr18808n.so" \
 559         "-shared -Wl,-z,now" \
 560         "-fPIC -O2 -g" \
 561         { pr18808b.c } \
 562         {} \
 563         "libpr18808n.so" \
 564     ] \
 565     [list \
 566         "Build pr18841a.o" \
 567         "" \
 568         "$NOPIE_CFLAGS" \
 569         { pr18841a.c } \
 570         "" \
 571         "" \
 572     ] \
 573     [list \
 574         "Build libpr18841b.so" \
 575         "-shared" \
 576         "-fPIC -O0 -g" \
 577         { pr18841b.c } \
 578         {} \
 579         "libpr18841b.so" \
 580     ] \
 581     [list \
 582         "Build libpr18841c.so" \
 583         "-shared" \
 584         "-fPIC -O0 -g" \
 585         { pr18841c.c } \
 586         {} \
 587         "libpr18841c.so" \
 588     ] \
 589     [list \
 590         "Build libpr18841bn.so" \
 591         "-Wl,-z,now -shared" \
 592         "-fPIC -O0 -g" \
 593         { pr18841b.c } \
 594         {} \
 595         "libpr18841bn.so" \
 596     ] \
 597     [list \
 598         "Build libpr18841cn.so" \
 599         "-shared" \
 600         "-Wl,-z,now -fPIC -O0 -g" \
 601         { pr18841c.c } \
 602         {} \
 603         "libpr18841cn.so" \
 604     ] \
 605     [list \
 606         "Build libpr23169a.so" \
 607         "-shared -Wl,-z,lazy" \
 608         "-fPIC -O2 -g" \
 609         { pr23169a.c } \
 610         {} \
 611         "libpr23169a.so" \
 612     ] \
 613     [list \
 614         "Build libpr23169b.so" \
 615         "-shared -Wl,-z,now" \
 616         "-fPIC -O2 -g" \
 617         { pr23169a.c } \
 618         {} \
 619         "libpr23169b.so" \
 620     ] \
 621     [list \
 622         "Build pr23169a" \
 623         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 624         "$NOPIE_CFLAGS -O2 -g" \
 625         { pr23169b.c pr23169c.c } \
 626         {{readelf {--dyn-syms} pr23169a.rd} \
 627          {readelf {-r -W} pr23169b.rd}} \
 628         "pr23169a" \
 629     ] \
 630     [list \
 631         "Build pr23169b" \
 632         "-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 633         "-fPIE -O2 -g" \
 634         { pr23169b.c pr23169c.c } \
 635         {{readelf {--dyn-syms} pr23169c.rd} \
 636          {readelf {-r -W} pr23169b.rd}} \
 637         "pr23169b" \
 638     ] \
 639     [list \
 640         "Build pr23169c" \
 641         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 642         "-fPIE -O2 -g" \
 643         { pr23169b.c pr23169c.c } \
 644         {{readelf {--dyn-syms} pr23169a.rd} \
 645          {readelf {-r -W} pr23169b.rd}} \
 646         "pr23169c" \
 647     ] \
 648     [list \
 649         "Build pr23169d" \
 650         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 651         "$NOPIE_CFLAGS -O2 -g" \
 652         { pr23169b.c pr23169c.c } \
 653         {{readelf {--dyn-syms} pr23169a.rd} \
 654          {readelf {-r -W} pr23169b.rd}} \
 655         "pr23169d" \
 656     ] \
 657     [list \
 658         "Build pr23169f" \
 659         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 660         "-fPIE -O2 -g" \
 661         { pr23169b.c pr23169c.c } \
 662         {{readelf {--dyn-syms} pr23169a.rd} \
 663          {readelf {-r -W} pr23169b.rd}} \
 664         "pr23169f" \
 665     ] \
 666 ]
 667
 668 run_ld_link_exec_tests [list \
 669     [list \
 670         "Run pr18808" \
 671         "-Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808.so" \
 672         "" \
 673         { dummy.c } \
 674         "pr18808" \
 675         "pr18808.out" \
 676     ] \
 677     [list \
 678         "Run pr18808 (-z now)" \
 679         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808n.so" \
 680         "" \
 681         { dummy.c } \
 682         "pr18808n" \
 683         "pr18808.out" \
 684     ] \
 685     [list \
 686         "Run pr18841 with libpr18841b.so" \
 687         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841b.so" \
 688         "$NOPIE_CFLAGS" \
 689         { dummy.c } \
 690         "pr18841b" \
 691         "pr18841.out" \
 692     ] \
 693     [list \
 694         "Run pr18841 with libpr18841c.so" \
 695         "$NOPIE_LDFLAGS -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841c.so" \
 696         "$NOPIE_CFLAGS" \
 697         { dummy.c } \
 698         "pr18841c" \
 699         "pr18841.out" \
 700     ] \
 701     [list \
 702         "Run pr18841 with libpr18841bn.so (-z now)" \
 703         "$NOPIE_LDFLAGS -Wl,-z,now -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841bn.so" \
 704         "$NOPIE_CFLAGS" \
 705         { dummy.c } \
 706         "pr18841bn" \
 707         "pr18841.out" \
 708     ] \
 709     [list \
 710         "Run pr18841 with libpr18841cn.so (-z now)" \
 711         "$NOPIE_LDFLAGS -Wl,-z,now -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841cn.so" \
 712         "$NOPIE_CFLAGS" \
 713         { dummy.c } \
 714         "pr18841cn" \
 715         "pr18841.out" \
 716     ] \
 717     [list \
 718         "Run pr29216" \
 719         "$NOPIE_LDFLAGS" \
 720         "" \
 721         { pr29216.c } \
 722         "pr29216" \
 723         "pass.out" \
 724         "-fPIC" \
 725     ] \
 726 ]
 727
 728 # The pr23169 testcase is not valid.  In general, you can't call ifunc
 729 # resolvers in another binary unless you know what you're doing.  In
 730 # particular you must ensure that the binary containing the resolver
 731 # is relocated before the resolver is called (for example, the
 732 # function addresses returned by the resolver may be loaded from the
 733 # GOT).
 734 # That does not happen for the pr23169 testcase where the resolver is
 735 # in the executable (which is relocated last by ld.so).
 736 if { [isnative]
 737      && !([istarget "powerpc-*-*"]
 738           || [istarget "aarch64*-*-*"]
 739           || [istarget "arm*-*-*"]
 740           || [istarget "sparc*-*-*"]
 741           || [istarget "riscv*-*-*"]) } {
 742 run_ld_link_exec_tests [list \
 743     [list \
 744         "Run pr23169a" \
 745         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 746         "" \
 747         { pr23169b.c pr23169c.c } \
 748         "pr23169a" \
 749         "pass.out" \
 750         "$NOPIE_CFLAGS -O2 -g" \
 751     ] \
 752     [list \
 753         "Run pr23169b" \
 754         "-pie -Wl,--no-as-needed,-z,lazy tmpdir/libpr23169a.so" \
 755         "" \
 756         { pr23169b.c pr23169c.c } \
 757         "pr23169b" \
 758         "pass.out" \
 759         "-fPIE -O2 -g" \
 760     ] \
 761     [list \
 762         "Run pr23169c" \
 763         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 764         "" \
 765         { pr23169b.c pr23169c.c } \
 766         "pr23169c" \
 767         "pass.out" \
 768         "-fPIE -O2 -g" \
 769     ] \
 770     [list \
 771         "Run pr23169d" \
 772         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 773         "" \
 774         { pr23169b.c pr23169c.c } \
 775         "pr23169d" \
 776         "pass.out" \
 777         "$NOPIE_CFLAGS -O2 -g" \
 778     ] \
 779     [list \
 780         "Run pr23169f" \
 781         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 782         "" \
 783         { pr23169b.c pr23169c.c } \
 784         "pr23169f" \
 785         "pass.out" \
 786         "-fPIE -O2 -g" \
 787     ] \
 788 ]
 789 if { $STATIC_PIE_LDFLAGS != "" } then {
 790     run_ld_link_exec_tests [list \
 791         [list \
 792             "Run pr23169g" \
 793             "$STATIC_PIE_LDFLAGS" \
 794             "" \
 795             { pr23169a.c pr23169b.c pr23169c.c } \
 796             "pr23169g" \
 797             "pass.out" \
 798             "-fPIE -O2 -g" \
 799         ] \
 800 ]
 801 }
 802 }
 803
 804 set ASFLAGS "$saved_ASFLAGS"