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 arc*-*-*]
  28      || [istarget am33*-*-*]
  29      || [istarget bfin-*-*]
  30      || [istarget cris*-*-*]
  31      || [istarget frv-*-*]
  32      || [istarget lm32-*-*]
  33      || [istarget m32r-*-*]
  34      || [istarget m68k-*-*]
  35      || [istarget microblaze-*-*]
  36      || [istarget mips*-*-*]
  37      || [istarget mn10300-*-*]
  38      || [istarget nds32*-*-*]
  39      || [istarget nios2-*-*]
  40      || [istarget or1k-*-*]
  41      || [istarget riscv*-*-*]
  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)\[ \]*\[0-9a-f\]*\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 $binary_file"
 172         return 0
 173     }
 174
 175     if { ![regexp "\\(\\)" [file_contents readelf.out]] } {
 176         return 0
 177     }
 178
 179     return 1
 180 }
 181
 182 set fails 0
 183
 184 # Create the object files, libraries and executables.
 185 if ![ld_compile "$CC -c -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] {
 186     fail "Could not create a PIC object file"
 187     set fails [expr $fails + 1]
 188 }
 189 if ![ld_compile "$CC -c $NOPIE_CFLAGS" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] {
 190     fail "Could not create a non-PIC object file"
 191     set fails [expr $fails + 1]
 192 }
 193 if ![ld_compile "$CC -c -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] {
 194     fail "Could not create a PIC object file containing an IFUNC symbol"
 195     set fails [expr $fails + 1]
 196 }
 197 if ![ld_compile "$CC -c $NOPIE_CFLAGS -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] {
 198     fail "Could not create a non-PIC object file containing an IFUNC symbol"
 199     set fails [expr $fails + 1]
 200 }
 201 if ![ld_compile "$CC -c -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] {
 202     fail "Could not create an ordinary non-PIC object file"
 203     set fails [expr $fails + 1]
 204 }
 205 if ![ld_assemble $as "$srcdir/ld-elf/empty.s" "tmpdir/empty.o"] {
 206     fail "Could not create an empty object file"
 207     set fails [expr $fails + 1]
 208 }
 209 if ![ld_compile "$CC -c" "$srcdir/$subdir/test-1.c" "tmpdir/test-1.o"] {
 210     fail "Could not create test-1.o"
 211     set fails [expr $fails + 1]
 212 }
 213 if ![ld_compile "$CC -fPIC -c" "$srcdir/$subdir/test-2.c" "tmpdir/test-2.o"] {
 214     fail "Could not create test-2.o"
 215     set fails [expr $fails + 1]
 216 }
 217
 218 if { $fails != 0 } {
 219     return
 220 }
 221
 222 if ![ld_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] {
 223     fail "Could not create a shared library containing an IFUNC symbol"
 224     set fails [expr $fails + 1]
 225 }
 226 if ![ar_simple_create $ar "" "tmpdir/libifunc.a" "tmpdir/static_ifunc.o"] {
 227     fail "Could not create a static library containing an IFUNC symbol"
 228     set fails [expr $fails + 1]
 229 }
 230
 231 if { $fails != 0 } {
 232     return
 233 }
 234
 235 if ![ld_link $CC "tmpdir/dynamic_prog" "-Wl,--no-as-needed,-rpath=./tmpdir,-Bdynamic -Ltmpdir tmpdir/shared_prog.o -lshared_ifunc"] {
 236     fail "Could not link a dynamic executable"
 237     set fails [expr $fails + 1]
 238 }
 239 if ![ld_link $CC "tmpdir/local_prog" "$NOPIE_LDFLAGS -Wl,--no-as-needed,-rpath=./tmpdir -Ltmpdir tmpdir/static_prog.o -lifunc"] {
 240     fail "Could not link a dynamic executable using local ifunc"
 241     set fails [expr $fails + 1]
 242 }
 243 if ![string match "" $STATIC_LDFLAGS] {
 244     if ![ld_link $CC "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] {
 245         fail "Could not link a static executable"
 246         set fails [expr $fails + 1]
 247     }
 248 }
 249 if ![ld_link $ld "tmpdir/static_nonifunc_prog" "-static tmpdir/empty.o"] {
 250     fail "Could not link a non-ifunc using static executable"
 251     set fails [expr $fails + 1]
 252 }
 253 if ![ld_link $CC "tmpdir/test-1" "-Wl,--no-as-needed,-rpath=./tmpdir tmpdir/test-1.o tmpdir/libshared_ifunc.so"] {
 254     fail "Could not link test-1"
 255     set fails [expr $fails + 1]
 256 }
 257 if ![ld_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] {
 258     fail "Could not link libtest-2.so"
 259     set fails [expr $fails + 1]
 260 }
 261 if ![ld_link $ld "tmpdir/libtest-2-now.so" "-shared -z now tmpdir/test-2.o"] {
 262     fail "Could not link libtest-2-now.so"
 263     set fails [expr $fails + 1]
 264 }
 265
 266 if { $fails == 0 } {
 267   pass "Building ifunc binaries"
 268   set fails 0
 269 } else {
 270     return
 271 }
 272
 273 # Check the executables and shared libraries
 274 #
 275 # The linked ifunc using executables and the shared library containing
 276 # ifunc should have an OSABI field of GNU.  The linked non-ifunc using
 277 # executable should have an OSABI field of NONE (aka System V).
 278
 279 switch -glob $target_triplet {
 280     hppa*-*-linux* { set expected_none {UNIX - GNU} }
 281     default { set expected_none {UNIX - System V} }
 282 }
 283
 284 if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - GNU}]} {
 285     fail "Shared libraries containing ifunc does not have an OS/ABI field of GNU"
 286     set fails [expr $fails + 1]
 287 }
 288 if {! [check_osabi tmpdir/local_prog {UNIX - GNU}]} {
 289     fail "Local ifunc-using executable does not have an OS/ABI field of GNU"
 290     set fails [expr $fails + 1]
 291 }
 292 if { ![string match "" $STATIC_LDFLAGS] \
 293      && ![check_osabi tmpdir/static_prog {UNIX - GNU}]} {
 294     fail "Static ifunc-using executable does not have an OS/ABI field of GNU"
 295     set fails [expr $fails + 1]
 296 }
 297 if {! [check_osabi tmpdir/dynamic_prog $expected_none]} {
 298     fail "Dynamic ifunc-using executable does not have an OS/ABI field of $expected_none"
 299     set fails [expr $fails + 1]
 300 }
 301 if {! [check_osabi tmpdir/static_nonifunc_prog $expected_none]} {
 302     fail "Static non-ifunc-using executable does not have an OS/ABI field of $expected_none"
 303     set fails [expr $fails + 1]
 304 }
 305
 306 # The linked ifunc using executables and the shared library containing
 307 # ifunc should contain an IFUNC symbol.  The non-ifunc using executable
 308 # should not.
 309
 310 if {[contains_ifunc_symbol tmpdir/libshared_ifunc.so] != 1} {
 311     fail "Shared libraries containing ifunc does not contain an IFUNC symbol"
 312     set fails [expr $fails + 1]
 313 }
 314 if {[contains_ifunc_symbol tmpdir/local_prog] != 1} {
 315     fail "Local ifunc-using executable does not contain an IFUNC symbol"
 316     set fails [expr $fails + 1]
 317 }
 318 if { ![string match "" $STATIC_LDFLAGS] \
 319      && [contains_ifunc_symbol tmpdir/static_prog] != 1} {
 320     fail "Static ifunc-using executable does not contain an IFUNC symbol"
 321     set fails [expr $fails + 1]
 322 }
 323 if {[contains_ifunc_symbol tmpdir/dynamic_prog] != 0} {
 324     fail "Dynamic ifunc-using executable contains an IFUNC symbol"
 325     set fails [expr $fails + 1]
 326 }
 327 if {[contains_ifunc_symbol tmpdir/static_nonifunc_prog] != 0} {
 328     fail "Static non-ifunc-using executable contains an IFUNC symbol"
 329     set fails [expr $fails + 1]
 330 }
 331 if {[contains_ifunc_symbol tmpdir/test-1] != 0} {
 332     fail "test-1 contains IFUNC symbols"
 333     set fails [expr $fails + 1]
 334 }
 335 if {[contains_ifunc_symbol tmpdir/libtest-2.so] != 0} {
 336     fail "libtest-2.so contains IFUNC symbols"
 337     set fails [expr $fails + 1]
 338 }
 339 if {[contains_ifunc_symbol tmpdir/libtest-2-now.so] != 0} {
 340     fail "libtest-2-now.so contains IFUNC symbols"
 341     set fails [expr $fails + 1]
 342 }
 343
 344 # The linked ifunc using executables and shared libraries should contain
 345 # a dynamic reloc referencing the IFUNC symbol.  (Even the static
 346 # executable which should have a dynamic section created for it).  The
 347 # non-ifunc using executable should not.
 348
 349 if {[contains_irelative_reloc tmpdir/libshared_ifunc.so] != 1} {
 350     fail "ifunc-using shared library does not contain R_*_IRELATIVE relocation"
 351     set fails [expr $fails + 1]
 352 }
 353 if {[contains_irelative_reloc tmpdir/local_prog] != 1} {
 354     fail "Local ifunc-using executable does not contain R_*_IRELATIVE relocation"
 355     set fails [expr $fails + 1]
 356 }
 357 if { ![string match "" $STATIC_LDFLAGS] \
 358     && [contains_irelative_reloc tmpdir/static_prog] != 1} {
 359     fail "Static ifunc-using executable does not contain R_*_IRELATIVE relocation"
 360     set fails [expr $fails + 1]
 361 }
 362 if {[contains_ifunc_reloc tmpdir/dynamic_prog] != 0} {
 363     fail "Dynamic ifunc-using executable contains a reloc against an IFUNC symbol"
 364     set fails [expr $fails + 1]
 365 }
 366 if {[contains_ifunc_reloc tmpdir/static_nonifunc_prog] == 1} {
 367     fail "Static non-ifunc-using executable contains a reloc against an IFUNC symbol!"
 368     set fails [expr $fails + 1]
 369 }
 370
 371 if { $fails == 0 } {
 372   pass "Checking ifunc binaries"
 373 }
 374
 375 run_cc_link_tests [list \
 376     [list \
 377         "Build libpr16467a.so" \
 378         "-shared -Wl,--version-script=pr16467a.map" \
 379         "-fPIC" \
 380         { pr16467a.c } \
 381         {} \
 382         "libpr16467a.so" \
 383     ] \
 384     [list \
 385         "Build libpr16467b.a" \
 386         "" \
 387         "-fPIC" \
 388         { pr16467b.c } \
 389         {} \
 390         "libpr16467b.a" \
 391     ] \
 392     [list \
 393         "Build libpr16467b.so" \
 394         "-shared tmpdir/pr16467b.o tmpdir/libpr16467a.so \
 395          -Wl,--version-script=pr16467b.map" \
 396         "-fPIC" \
 397         { dummy.c } \
 398         {} \
 399         "libpr16467b.so" \
 400     ] \
 401     [list \
 402         "Build libpr16467c.a" \
 403         "" \
 404         "" \
 405         { pr16467c.c } \
 406         {} \
 407         "libpr16467c.a" \
 408     ] \
 409     [list \
 410         "Build libpr16467an.so" \
 411         "-shared -Wl,-z,now -Wl,--version-script=pr16467a.map" \
 412         "-fPIC" \
 413         { pr16467a.c } \
 414         {} \
 415         "libpr16467an.so" \
 416     ] \
 417     [list \
 418         "Build libpr16467bn.so" \
 419         "-shared tmpdir/pr16467b.o tmpdir/libpr16467an.so \
 420          -Wl,--version-script=pr16467b.map" \
 421         "-fPIC" \
 422         { dummy.c } \
 423         {} \
 424         "libpr16467bn.so" \
 425     ] \
 426 ]
 427
 428 run_ld_link_exec_tests [list \
 429     [list \
 430         "Common symbol override ifunc test 1a" \
 431         "-static" \
 432         "" \
 433         { ifunc-common-1a.c ifunc-common-1b.c } \
 434         "ifunc-common-1a" \
 435         "ifunc-common-1.out" \
 436         "-g" \
 437     ] \
 438     [list \
 439         "Common symbol override ifunc test 1b" \
 440         "-static" \
 441         "" \
 442         { ifunc-common-1b.c ifunc-common-1a.c } \
 443         "ifunc-common-1b" \
 444         "ifunc-common-1.out" \
 445         "-g" \
 446     ] \
 447 ]
 448
 449 # Run-time tests which require working IFUNC support.
 450 if { ![check_ifunc_available] } {
 451     return
 452 }
 453
 454 run_cc_link_tests [list \
 455     [list \
 456         "Build ifunc-lib.so" \
 457         "-shared" \
 458         "-fPIC" \
 459         { ifunc-lib.c } \
 460         {} \
 461         "libifunc-lib.so" \
 462     ] \
 463     [list \
 464         "Build ifunc-libn.so" \
 465         "-shared -Wl,-z,now" \
 466         "-fPIC" \
 467         { ifunc-lib.c } \
 468         {} \
 469         "libifunc-libn.so" \
 470     ] \
 471 ]
 472
 473 run_ld_link_exec_tests [list \
 474     [list \
 475         "Run pr16467" \
 476         "-Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467b.so tmpdir/libpr16467a.so" \
 477         "" \
 478         { dummy.c } \
 479         "pr16467" \
 480         "pr16467.out" \
 481         "" \
 482     ] \
 483     [list \
 484         "Run pr16467 (-z now)" \
 485         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467bn.so tmpdir/libpr16467an.so" \
 486         "" \
 487         { dummy.c } \
 488         "pr16467n" \
 489         "pr16467.out" \
 490         "" \
 491     ] \
 492     [list \
 493         "Run ifunc-main" \
 494         "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 495         "" \
 496         { ifunc-main.c } \
 497         "ifunc-main" \
 498         "ifunc-main.out" \
 499     ] \
 500     [list \
 501         "Run ifunc-main with -fpic" \
 502         "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 503         "" \
 504         { ifunc-main.c } \
 505         "ifunc-main" \
 506         "ifunc-main.out" \
 507         "-fpic" \
 508     ] \
 509     [list \
 510         "Run ifunc-main (-z now)" \
 511         "-Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 512         "" \
 513         { ifunc-main.c } \
 514         "ifunc-mainn" \
 515         "ifunc-main.out" \
 516     ] \
 517     [list \
 518         "Run ifunc-main with PIE (-z now)" \
 519         "-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 520         "" \
 521         { ifunc-main.c } \
 522         "ifunc-mainpn" \
 523         "ifunc-main.out" \
 524         "-fpie" \
 525     ] \
 526 ]
 527
 528 # Run-time tests which require working ifunc attribute support.
 529 if { ![check_ifunc_attribute_available] } {
 530     return
 531 }
 532
 533 run_cc_link_tests [list \
 534     [list \
 535         "Build pr18808a.o" \
 536         "" \
 537         "" \
 538         { pr18808a.c } \
 539         "" \
 540         "" \
 541     ] \
 542     [list \
 543         "Build libpr18808.so" \
 544         "-shared" \
 545         "-fPIC -O2 -g" \
 546         { pr18808b.c } \
 547         {} \
 548         "libpr18808.so" \
 549     ] \
 550     [list \
 551         "Build libpr18808n.so" \
 552         "-shared -Wl,-z,now" \
 553         "-fPIC -O2 -g" \
 554         { pr18808b.c } \
 555         {} \
 556         "libpr18808n.so" \
 557     ] \
 558     [list \
 559         "Build pr18841a.o" \
 560         "" \
 561         "" \
 562         { pr18841a.c } \
 563         "" \
 564         "" \
 565     ] \
 566     [list \
 567         "Build libpr18841b.so" \
 568         "-shared" \
 569         "-fPIC -O0 -g" \
 570         { pr18841b.c } \
 571         {} \
 572         "libpr18841b.so" \
 573     ] \
 574     [list \
 575         "Build libpr18841c.so" \
 576         "-shared" \
 577         "-fPIC -O0 -g" \
 578         { pr18841c.c } \
 579         {} \
 580         "libpr18841c.so" \
 581     ] \
 582     [list \
 583         "Build libpr18841bn.so" \
 584         "-Wl,-z,now -shared" \
 585         "-fPIC -O0 -g" \
 586         { pr18841b.c } \
 587         {} \
 588         "libpr18841bn.so" \
 589     ] \
 590     [list \
 591         "Build libpr18841cn.so" \
 592         "-shared" \
 593         "-Wl,-z,now -fPIC -O0 -g" \
 594         { pr18841c.c } \
 595         {} \
 596         "libpr18841cn.so" \
 597     ] \
 598     [list \
 599         "Build libpr23169a.so" \
 600         "-shared" \
 601         "-fPIC -O2 -g" \
 602         { pr23169a.c } \
 603         {} \
 604         "libpr23169a.so" \
 605     ] \
 606     [list \
 607         "Build libpr23169b.so" \
 608         "-shared -Wl,-z,now" \
 609         "-fPIC -O2 -g" \
 610         { pr23169a.c } \
 611         {} \
 612         "libpr23169b.so" \
 613     ] \
 614     [list \
 615         "Build pr23169a" \
 616         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 617         "$NOPIE_CFLAGS -O2 -g" \
 618         { pr23169b.c pr23169c.c } \
 619         {{readelf {--dyn-syms} pr23169a.rd} \
 620          {readelf {-r -W} pr23169b.rd}} \
 621         "pr23169a" \
 622     ] \
 623     [list \
 624         "Build pr23169b" \
 625         "-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 626         "-fPIE -O2 -g" \
 627         { pr23169b.c pr23169c.c } \
 628         {{readelf {--dyn-syms} pr23169c.rd} \
 629          {readelf {-r -W} pr23169b.rd}} \
 630         "pr23169b" \
 631     ] \
 632     [list \
 633         "Build pr23169c" \
 634         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 635         "-fPIE -O2 -g" \
 636         { pr23169b.c pr23169c.c } \
 637         {{readelf {--dyn-syms} pr23169c.rd} \
 638          {readelf {-r -W} pr23169b.rd}} \
 639         "pr23169c" \
 640     ] \
 641     [list \
 642         "Build pr23169d" \
 643         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 644         "$NOPIE_CFLAGS -O2 -g" \
 645         { pr23169b.c pr23169c.c } \
 646         {{readelf {--dyn-syms} pr23169a.rd} \
 647          {readelf {-r -W} pr23169b.rd}} \
 648         "pr23169d" \
 649     ] \
 650     [list \
 651         "Build pr23169e" \
 652         "-pie -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 653         "-fPIE -O2 -g" \
 654         { pr23169b.c pr23169c.c } \
 655         {{readelf {--dyn-syms} pr23169c.rd} \
 656          {readelf {-r -W} pr23169b.rd}} \
 657         "pr23169e" \
 658     ] \
 659     [list \
 660         "Build pr23169f" \
 661         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 662         "-fPIE -O2 -g" \
 663         { pr23169b.c pr23169c.c } \
 664         {{readelf {--dyn-syms} pr23169c.rd} \
 665          {readelf {-r -W} pr23169b.rd}} \
 666         "pr23169f" \
 667     ] \
 668 ]
 669
 670 run_ld_link_exec_tests [list \
 671     [list \
 672         "Run pr18808" \
 673         "-Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808.so" \
 674         "" \
 675         { dummy.c } \
 676         "pr18808" \
 677         "pr18808.out" \
 678     ] \
 679     [list \
 680         "Run pr18808 (-z now)" \
 681         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808n.so" \
 682         "" \
 683         { dummy.c } \
 684         "pr18808n" \
 685         "pr18808.out" \
 686     ] \
 687     [list \
 688         "Run pr18841 with libpr18841b.so" \
 689         "-Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841b.so" \
 690         "" \
 691         { dummy.c } \
 692         "pr18841b" \
 693         "pr18841.out" \
 694     ] \
 695     [list \
 696         "Run pr18841 with libpr18841c.so" \
 697         "-Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841c.so" \
 698         "" \
 699         { dummy.c } \
 700         "pr18841c" \
 701         "pr18841.out" \
 702     ] \
 703     [list \
 704         "Run pr18841 with libpr18841bn.so (-z now)" \
 705         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841bn.so" \
 706         "" \
 707         { dummy.c } \
 708         "pr18841bn" \
 709         "pr18841.out" \
 710     ] \
 711     [list \
 712         "Run pr18841 with libpr18841cn.so (-z now)" \
 713         "-Wl,-z,now -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841cn.so" \
 714         "" \
 715         { dummy.c } \
 716         "pr18841cn" \
 717         "pr18841.out" \
 718     ] \
 719 ]
 720
 721 # The pr23169 testcase is not valid.  In general, you can't call ifunc
 722 # resolvers in another binary unless you know what you're doing.  In
 723 # particular you must ensure that the binary containing the resolver
 724 # is relocated before the resolver is called (for example, the
 725 # function addresses returned by the resolver may be loaded from the
 726 # GOT).
 727 # That does not happen for the pr23169 testcase where the resolver is
 728 # in the executable (which is relocated last by ld.so).
 729 if { [isnative]
 730      && !([istarget "powerpc-*-*"]
 731            || [istarget "aarch64*-*-*"]
 732            || [istarget "sparc*-*-*"]) } {
 733 run_ld_link_exec_tests [list \
 734     [list \
 735         "Run pr23169a" \
 736         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 737         "" \
 738         { pr23169b.c pr23169c.c } \
 739         "pr23169a" \
 740         "pass.out" \
 741         "$NOPIE_CFLAGS -O2 -g" \
 742     ] \
 743     [list \
 744         "Run pr23169b" \
 745         "-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 746         "" \
 747         { pr23169b.c pr23169c.c } \
 748         "pr23169b" \
 749         "pass.out" \
 750         "-fPIE -O2 -g" \
 751     ] \
 752     [list \
 753         "Run pr23169c" \
 754         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 755         "" \
 756         { pr23169b.c pr23169c.c } \
 757         "pr23169c" \
 758         "pass.out" \
 759         "-fPIE -O2 -g" \
 760     ] \
 761     [list \
 762         "Run pr23169d" \
 763         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 764         "" \
 765         { pr23169b.c pr23169c.c } \
 766         "pr23169d" \
 767         "pass.out" \
 768         "$NOPIE_CFLAGS -O2 -g" \
 769     ] \
 770     [list \
 771         "Run pr23169e" \
 772         "-pie -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 773         "" \
 774         { pr23169b.c pr23169c.c } \
 775         "pr23169e" \
 776         "pass.out" \
 777         "-fPIE -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"