ld/testsuite/ld-ifunc/ifunc.exp

   1 # Expect script for linker support of IFUNC symbols and relocations.
   2 #
   3 #   Copyright (C) 2009-2019 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 # IFUNC support has only been implemented for the ix86, x86_64, powerpc,
  27 # aarch64, sparc, and S/390 so far.
  28 if {!(([istarget "i?86-*-*"]
  29        || [istarget "x86_64-*-*"]
  30        || [istarget "powerpc*-*-*"]
  31        || [istarget "aarch64*-*-*"]
  32        || [istarget "sparc*-*-*"]
  33        || [istarget "s390*-*-*"])
  34       && ([istarget "*-*-elf*"]
  35           || [istarget "*-*-nacl*"]
  36           || [istarget "*-*-linux*"]
  37           || [istarget "*-*-gnu*"])) } {
  38     verbose "IFUNC tests not run - target does not support IFUNC"
  39     return
  40 }
  41
  42 # Skip targets where -shared is not supported
  43
  44 if ![check_shared_lib_support] {
  45     return
  46 }
  47
  48 global ASFLAGS
  49 set saved_ASFLAGS "$ASFLAGS"
  50 if { [istarget "i?86-*-*"] || [istarget "x86_64-*-*"] } {
  51     set ASFLAGS "$ASFLAGS -mx86-used-note=no"
  52 }
  53
  54 # This test does not need a compiler...
  55 run_dump_test "ifuncmod5"
  56
  57 set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
  58 foreach t $test_list {
  59     # We need to strip the ".d", but can leave the dirname.
  60     verbose [file rootname $t]
  61     run_dump_test [file rootname $t]
  62 }
  63
  64 # We need a working compiler.  (Strictly speaking this is
  65 # not true, we could use target specific assembler files).
  66 if { [which $CC] == 0 } {
  67     verbose "IFUNC tests not run - no compiler available"
  68     return
  69 }
  70
  71 # A procedure to check the OS/ABI field in the ELF header of a binary file.
  72 proc check_osabi { binary_file expected_osabi } {
  73     global READELF
  74     global READELFFLAGS
  75
  76     catch "exec $READELF $READELFFLAGS --file-header $binary_file > readelf.out" got
  77
  78     if ![string match "" $got] then {
  79         verbose "proc check_osabi: Readelf produced unexpected out processing $binary_file: $got"
  80         return 0
  81     }
  82
  83     if { ![regexp "\n\[ \]*OS/ABI:\[ \]*(.+)\n\[ \]*ABI" \
  84            [file_contents readelf.out] nil osabi] } {
  85         verbose "proc check_osabi: Readelf failed to extract an ELF header from $binary_file"
  86         return 0
  87     }
  88
  89     if { $osabi == $expected_osabi } {
  90         return 1
  91     }
  92
  93     verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi"
  94
  95     return 0
  96 }
  97
  98 # A procedure to confirm that a file contains the IFUNC symbol.
  99 # Returns -1 upon error, 0 if the symbol was not found and 1 if it was found.
 100 proc contains_ifunc_symbol { binary_file } {
 101     global READELF
 102     global READELFFLAGS
 103
 104     catch "exec $READELF $READELFFLAGS --symbols $binary_file > readelf.out" got
 105
 106     if ![string match "" $got] then {
 107         verbose "proc contains_ifunc_symbol: Readelf produced unexpected out processing $binary_file: $got"
 108         return -1
 109     }
 110
 111     # Look for a line like this:
 112     #    58: 0000000000400600    30 IFUNC   GLOBAL DEFAULT   12 library_func2
 113     # with perhaps some other info between the visibility and section
 114
 115     if { ![regexp ".*\[ \]*IFUNC\[ \]+GLOBAL\[ \]+DEFAULT .* \[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } {
 116         return 0
 117     }
 118
 119     return 1
 120 }
 121
 122 # A procedure to confirm that a file contains the R_*_IRELATIVE
 123 # relocation.
 124 # Returns -1 upon error, 0 if the relocation was not found and 1 if
 125 # it was found.
 126 proc contains_irelative_reloc { binary_file } {
 127     global READELF
 128     global READELFFLAGS
 129
 130     catch "exec $READELF $READELFFLAGS --relocs --wide $binary_file > readelf.out" got
 131
 132     if ![string match "" $got] then {
 133         verbose "proc contains_irelative_reloc: Readelf produced unexpected out processing $binary_file: $got"
 134         return -1
 135     }
 136
 137     # Look for a line like this:
 138     #    0000000000600ab0  0000000000000025 R_X86_64_IRELATIVE      000000000040061c
 139     #    080496f4  0000002a R_386_IRELATIVE
 140
 141
 142     if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_\[_0-9A-Z\]+_IREL(|ATIVE)\[ \]*\[0-9a-f\]*\n" [file_contents readelf.out]] } {
 143         return 0
 144     }
 145
 146     return 1
 147 }
 148
 149 # A procedure to confirm that a file contains a relocation that references an IFUNC symbol.
 150 # Returns -1 upon error, 0 if the reloc was not found and 1 if it was found.
 151 proc contains_ifunc_reloc { binary_file } {
 152     global READELF
 153     global READELFFLAGS
 154
 155     catch "exec $READELF $READELFFLAGS --relocs $binary_file > readelf.out" got
 156
 157     if ![string match "" $got] then {
 158         verbose "proc contains_ifunc_reloc: Readelf produced unexpected out processing $binary_file: $got"
 159         return -1
 160     }
 161
 162     if [string match "" [file_contents readelf.out]] then {
 163         verbose "No relocs found in $binary_file"
 164         return 0
 165     }
 166
 167     if { ![regexp "\\(\\)" [file_contents readelf.out]] } {
 168         return 0
 169     }
 170
 171     return 1
 172 }
 173
 174 set fails 0
 175
 176 # Create the object files, libraries and executables.
 177 if ![ld_compile "$CC -c -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] {
 178     fail "Could not create a PIC object file"
 179     set fails [expr $fails + 1]
 180 }
 181 if ![ld_compile "$CC -c $NOPIE_CFLAGS" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] {
 182     fail "Could not create a non-PIC object file"
 183     set fails [expr $fails + 1]
 184 }
 185 if ![ld_compile "$CC -c -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] {
 186     fail "Could not create a PIC object file containing an IFUNC symbol"
 187     set fails [expr $fails + 1]
 188 }
 189 if ![ld_compile "$CC -c $NOPIE_CFLAGS -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] {
 190     fail "Could not create a non-PIC object file containing an IFUNC symbol"
 191     set fails [expr $fails + 1]
 192 }
 193 if ![ld_compile "$CC -c -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] {
 194     fail "Could not create an ordinary non-PIC object file"
 195     set fails [expr $fails + 1]
 196 }
 197 if ![ld_assemble $as "$srcdir/ld-elf/empty.s" "tmpdir/empty.o"] {
 198     fail "Could not create an empty object file"
 199     set fails [expr $fails + 1]
 200 }
 201 if ![ld_compile "$CC -c" "$srcdir/$subdir/test-1.c" "tmpdir/test-1.o"] {
 202     fail "Could not create test-1.o"
 203     set fails [expr $fails + 1]
 204 }
 205 if ![ld_compile "$CC -fPIC -c" "$srcdir/$subdir/test-2.c" "tmpdir/test-2.o"] {
 206     fail "Could not create test-2.o"
 207     set fails [expr $fails + 1]
 208 }
 209
 210 if { $fails != 0 } {
 211     return
 212 }
 213
 214 if ![ld_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] {
 215     fail "Could not create a shared library containing an IFUNC symbol"
 216     set fails [expr $fails + 1]
 217 }
 218 if ![ar_simple_create $ar "" "tmpdir/libifunc.a" "tmpdir/static_ifunc.o"] {
 219     fail "Could not create a static library containing an IFUNC symbol"
 220     set fails [expr $fails + 1]
 221 }
 222
 223 if { $fails != 0 } {
 224     return
 225 }
 226
 227 if ![ld_link $CC "tmpdir/dynamic_prog" "-Wl,--no-as-needed,-rpath=./tmpdir,-Bdynamic -Ltmpdir tmpdir/shared_prog.o -lshared_ifunc"] {
 228     fail "Could not link a dynamic executable"
 229     set fails [expr $fails + 1]
 230 }
 231 if ![ld_link $CC "tmpdir/local_prog" "$NOPIE_LDFLAGS -Wl,--no-as-needed,-rpath=./tmpdir -Ltmpdir tmpdir/static_prog.o -lifunc"] {
 232     fail "Could not link a dynamic executable using local ifunc"
 233     set fails [expr $fails + 1]
 234 }
 235 if ![string match "" $STATIC_LDFLAGS] {
 236     if ![ld_link $CC "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] {
 237         fail "Could not link a static executable"
 238         set fails [expr $fails + 1]
 239     }
 240 }
 241 if ![ld_link $ld "tmpdir/static_nonifunc_prog" "-static tmpdir/empty.o"] {
 242     fail "Could not link a non-ifunc using static executable"
 243     set fails [expr $fails + 1]
 244 }
 245 if ![ld_link $CC "tmpdir/test-1" "-Wl,--no-as-needed,-rpath=./tmpdir tmpdir/test-1.o tmpdir/libshared_ifunc.so"] {
 246     fail "Could not link test-1"
 247     set fails [expr $fails + 1]
 248 }
 249 if ![ld_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] {
 250     fail "Could not link libtest-2.so"
 251     set fails [expr $fails + 1]
 252 }
 253 if ![ld_link $ld "tmpdir/libtest-2-now.so" "-shared -z now tmpdir/test-2.o"] {
 254     fail "Could not link libtest-2-now.so"
 255     set fails [expr $fails + 1]
 256 }
 257
 258 if { $fails == 0 } {
 259   pass "Building ifunc binaries"
 260   set fails 0
 261 } else {
 262     return
 263 }
 264
 265 # Check the executables and shared libraries
 266 #
 267 # The linked ifunc using executables and the shared library containing
 268 # ifunc should have an OSABI field of GNU.  The linked non-ifunc using
 269 # executable should have an OSABI field of NONE (aka System V).
 270
 271 case $target_triplet in {
 272     { hppa*-*-linux* } { set expected_none {UNIX - GNU} }
 273     default { set expected_none {UNIX - System V} }
 274 }
 275
 276 if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - GNU}]} {
 277     fail "Shared libraries containing ifunc does not have an OS/ABI field of GNU"
 278     set fails [expr $fails + 1]
 279 }
 280 if {! [check_osabi tmpdir/local_prog {UNIX - GNU}]} {
 281     fail "Local ifunc-using executable does not have an OS/ABI field of GNU"
 282     set fails [expr $fails + 1]
 283 }
 284 if { ![string match "" $STATIC_LDFLAGS] \
 285      && ![check_osabi tmpdir/static_prog {UNIX - GNU}]} {
 286     fail "Static ifunc-using executable does not have an OS/ABI field of GNU"
 287     set fails [expr $fails + 1]
 288 }
 289 if {! [check_osabi tmpdir/dynamic_prog $expected_none]} {
 290     fail "Dynamic ifunc-using executable does not have an OS/ABI field of $expected_none"
 291     set fails [expr $fails + 1]
 292 }
 293 if {! [check_osabi tmpdir/static_nonifunc_prog $expected_none]} {
 294     fail "Static non-ifunc-using executable does not have an OS/ABI field of $expected_none"
 295     set fails [expr $fails + 1]
 296 }
 297
 298 # The linked ifunc using executables and the shared library containing
 299 # ifunc should contain an IFUNC symbol.  The non-ifunc using executable
 300 # should not.
 301
 302 if {[contains_ifunc_symbol tmpdir/libshared_ifunc.so] != 1} {
 303     fail "Shared libraries containing ifunc does not contain an IFUNC symbol"
 304     set fails [expr $fails + 1]
 305 }
 306 if {[contains_ifunc_symbol tmpdir/local_prog] != 1} {
 307     fail "Local ifunc-using executable does not contain an IFUNC symbol"
 308     set fails [expr $fails + 1]
 309 }
 310 if { ![string match "" $STATIC_LDFLAGS] \
 311      && [contains_ifunc_symbol tmpdir/static_prog] != 1} {
 312     fail "Static ifunc-using executable does not contain an IFUNC symbol"
 313     set fails [expr $fails + 1]
 314 }
 315 if {[contains_ifunc_symbol tmpdir/dynamic_prog] != 0} {
 316     fail "Dynamic ifunc-using executable contains an IFUNC symbol"
 317     set fails [expr $fails + 1]
 318 }
 319 if {[contains_ifunc_symbol tmpdir/static_nonifunc_prog] != 0} {
 320     fail "Static non-ifunc-using executable contains an IFUNC symbol"
 321     set fails [expr $fails + 1]
 322 }
 323 if {[contains_ifunc_symbol tmpdir/test-1] != 0} {
 324     fail "test-1 contains IFUNC symbols"
 325     set fails [expr $fails + 1]
 326 }
 327 if {[contains_ifunc_symbol tmpdir/libtest-2.so] != 0} {
 328     fail "libtest-2.so contains IFUNC symbols"
 329     set fails [expr $fails + 1]
 330 }
 331 if {[contains_ifunc_symbol tmpdir/libtest-2-now.so] != 0} {
 332     fail "libtest-2-now.so contains IFUNC symbols"
 333     set fails [expr $fails + 1]
 334 }
 335
 336 # The linked ifunc using executables and shared libraries should contain
 337 # a dynamic reloc referencing the IFUNC symbol.  (Even the static
 338 # executable which should have a dynamic section created for it).  The
 339 # non-ifunc using executable should not.
 340
 341 if {[contains_irelative_reloc tmpdir/libshared_ifunc.so] != 1} {
 342     fail "ifunc-using shared library does not contain R_*_IRELATIVE relocation"
 343     set fails [expr $fails + 1]
 344 }
 345 if {[contains_irelative_reloc tmpdir/local_prog] != 1} {
 346     fail "Local ifunc-using executable does not contain R_*_IRELATIVE relocation"
 347     set fails [expr $fails + 1]
 348 }
 349 if { ![string match "" $STATIC_LDFLAGS] \
 350     && [contains_irelative_reloc tmpdir/static_prog] != 1} {
 351     fail "Static ifunc-using executable does not contain R_*_IRELATIVE relocation"
 352     set fails [expr $fails + 1]
 353 }
 354 if {[contains_ifunc_reloc tmpdir/dynamic_prog] != 0} {
 355     fail "Dynamic ifunc-using executable contains a reloc against an IFUNC symbol"
 356     set fails [expr $fails + 1]
 357 }
 358 if {[contains_ifunc_reloc tmpdir/static_nonifunc_prog] == 1} {
 359     fail "Static non-ifunc-using executable contains a reloc against an IFUNC symbol!"
 360     set fails [expr $fails + 1]
 361 }
 362
 363 if { $fails == 0 } {
 364   pass "Checking ifunc binaries"
 365 }
 366
 367 run_cc_link_tests [list \
 368     [list \
 369         "Build libpr16467a.so" \
 370         "-shared -Wl,--version-script=pr16467a.map" \
 371         "-fPIC" \
 372         { pr16467a.c } \
 373         {} \
 374         "libpr16467a.so" \
 375     ] \
 376     [list \
 377         "Build libpr16467b.a" \
 378         "" \
 379         "-fPIC" \
 380         { pr16467b.c } \
 381         {} \
 382         "libpr16467b.a" \
 383     ] \
 384     [list \
 385         "Build libpr16467b.so" \
 386         "-shared tmpdir/pr16467b.o tmpdir/libpr16467a.so \
 387          -Wl,--version-script=pr16467b.map" \
 388         "-fPIC" \
 389         { dummy.c } \
 390         {} \
 391         "libpr16467b.so" \
 392     ] \
 393     [list \
 394         "Build libpr16467c.a" \
 395         "" \
 396         "" \
 397         { pr16467c.c } \
 398         {} \
 399         "libpr16467c.a" \
 400     ] \
 401     [list \
 402         "Build libpr16467an.so" \
 403         "-shared -Wl,-z,now -Wl,--version-script=pr16467a.map" \
 404         "-fPIC" \
 405         { pr16467a.c } \
 406         {} \
 407         "libpr16467an.so" \
 408     ] \
 409     [list \
 410         "Build libpr16467bn.so" \
 411         "-shared tmpdir/pr16467b.o tmpdir/libpr16467an.so \
 412          -Wl,--version-script=pr16467b.map" \
 413         "-fPIC" \
 414         { dummy.c } \
 415         {} \
 416         "libpr16467bn.so" \
 417     ] \
 418 ]
 419
 420 run_ld_link_exec_tests [list \
 421     [list \
 422         "Common symbol override ifunc test 1a" \
 423         "-static" \
 424         "" \
 425         { ifunc-common-1a.c ifunc-common-1b.c } \
 426         "ifunc-common-1a" \
 427         "ifunc-common-1.out" \
 428         "-g" \
 429     ] \
 430     [list \
 431         "Common symbol override ifunc test 1b" \
 432         "-static" \
 433         "" \
 434         { ifunc-common-1b.c ifunc-common-1a.c } \
 435         "ifunc-common-1b" \
 436         "ifunc-common-1.out" \
 437         "-g" \
 438     ] \
 439 ]
 440
 441 # Run-time tests which require working IFUNC support.
 442 if { ![check_ifunc_available] } {
 443     return
 444 }
 445
 446 run_cc_link_tests [list \
 447     [list \
 448         "Build ifunc-lib.so" \
 449         "-shared" \
 450         "-fPIC" \
 451         { ifunc-lib.c } \
 452         {} \
 453         "libifunc-lib.so" \
 454     ] \
 455     [list \
 456         "Build ifunc-libn.so" \
 457         "-shared -Wl,-z,now" \
 458         "-fPIC" \
 459         { ifunc-lib.c } \
 460         {} \
 461         "libifunc-libn.so" \
 462     ] \
 463 ]
 464
 465 run_ld_link_exec_tests [list \
 466     [list \
 467         "Run pr16467" \
 468         "-Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467b.so tmpdir/libpr16467a.so" \
 469         "" \
 470         { dummy.c } \
 471         "pr16467" \
 472         "pr16467.out" \
 473         "" \
 474     ] \
 475     [list \
 476         "Run pr16467 (-z now)" \
 477         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467bn.so tmpdir/libpr16467an.so" \
 478         "" \
 479         { dummy.c } \
 480         "pr16467n" \
 481         "pr16467.out" \
 482         "" \
 483     ] \
 484     [list \
 485         "Run ifunc-main" \
 486         "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 487         "" \
 488         { ifunc-main.c } \
 489         "ifunc-main" \
 490         "ifunc-main.out" \
 491     ] \
 492     [list \
 493         "Run ifunc-main with -fpic" \
 494         "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 495         "" \
 496         { ifunc-main.c } \
 497         "ifunc-main" \
 498         "ifunc-main.out" \
 499         "-fpic" \
 500     ] \
 501     [list \
 502         "Run ifunc-main (-z now)" \
 503         "-Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 504         "" \
 505         { ifunc-main.c } \
 506         "ifunc-mainn" \
 507         "ifunc-main.out" \
 508     ] \
 509     [list \
 510         "Run ifunc-main with PIE (-z now)" \
 511         "-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 512         "" \
 513         { ifunc-main.c } \
 514         "ifunc-mainpn" \
 515         "ifunc-main.out" \
 516         "-fpie" \
 517     ] \
 518 ]
 519
 520 # Run-time tests which require working ifunc attribute support.
 521 if { ![check_ifunc_attribute_available] } {
 522     return
 523 }
 524
 525 run_cc_link_tests [list \
 526     [list \
 527         "Build pr18808a.o" \
 528         "" \
 529         "" \
 530         { pr18808a.c } \
 531         "" \
 532         "" \
 533     ] \
 534     [list \
 535         "Build libpr18808.so" \
 536         "-shared" \
 537         "-fPIC -O2 -g" \
 538         { pr18808b.c } \
 539         {} \
 540         "libpr18808.so" \
 541     ] \
 542     [list \
 543         "Build libpr18808n.so" \
 544         "-shared -Wl,-z,now" \
 545         "-fPIC -O2 -g" \
 546         { pr18808b.c } \
 547         {} \
 548         "libpr18808n.so" \
 549     ] \
 550     [list \
 551         "Build pr18841a.o" \
 552         "" \
 553         "" \
 554         { pr18841a.c } \
 555         "" \
 556         "" \
 557     ] \
 558     [list \
 559         "Build libpr18841b.so" \
 560         "-shared" \
 561         "-fPIC -O0 -g" \
 562         { pr18841b.c } \
 563         {} \
 564         "libpr18841b.so" \
 565     ] \
 566     [list \
 567         "Build libpr18841c.so" \
 568         "-shared" \
 569         "-fPIC -O0 -g" \
 570         { pr18841c.c } \
 571         {} \
 572         "libpr18841c.so" \
 573     ] \
 574     [list \
 575         "Build libpr18841bn.so" \
 576         "-Wl,-z,now -shared" \
 577         "-fPIC -O0 -g" \
 578         { pr18841b.c } \
 579         {} \
 580         "libpr18841bn.so" \
 581     ] \
 582     [list \
 583         "Build libpr18841cn.so" \
 584         "-shared" \
 585         "-Wl,-z,now -fPIC -O0 -g" \
 586         { pr18841c.c } \
 587         {} \
 588         "libpr18841cn.so" \
 589     ] \
 590     [list \
 591         "Build libpr23169a.so" \
 592         "-shared" \
 593         "-fPIC -O2 -g" \
 594         { pr23169a.c } \
 595         {} \
 596         "libpr23169a.so" \
 597     ] \
 598     [list \
 599         "Build libpr23169b.so" \
 600         "-shared -Wl,-z,now" \
 601         "-fPIC -O2 -g" \
 602         { pr23169a.c } \
 603         {} \
 604         "libpr23169b.so" \
 605     ] \
 606     [list \
 607         "Build pr23169a" \
 608         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 609         "$NOPIE_CFLAGS -O2 -g" \
 610         { pr23169b.c pr23169c.c } \
 611         {{readelf {--dyn-syms} pr23169a.rd} \
 612          {readelf {-r -W} pr23169b.rd}} \
 613         "pr23169a" \
 614     ] \
 615     [list \
 616         "Build pr23169b" \
 617         "-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 618         "-fPIE -O2 -g" \
 619         { pr23169b.c pr23169c.c } \
 620         {{readelf {--dyn-syms} pr23169c.rd} \
 621          {readelf {-r -W} pr23169b.rd}} \
 622         "pr23169b" \
 623     ] \
 624     [list \
 625         "Build pr23169c" \
 626         "$NOPIE_LDFLAGS -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         "pr23169c" \
 632     ] \
 633     [list \
 634         "Build pr23169d" \
 635         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 636         "$NOPIE_CFLAGS -O2 -g" \
 637         { pr23169b.c pr23169c.c } \
 638         {{readelf {--dyn-syms} pr23169a.rd} \
 639          {readelf {-r -W} pr23169b.rd}} \
 640         "pr23169d" \
 641     ] \
 642     [list \
 643         "Build pr23169e" \
 644         "-pie -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 645         "-fPIE -O2 -g" \
 646         { pr23169b.c pr23169c.c } \
 647         {{readelf {--dyn-syms} pr23169c.rd} \
 648          {readelf {-r -W} pr23169b.rd}} \
 649         "pr23169e" \
 650     ] \
 651     [list \
 652         "Build pr23169f" \
 653         "$NOPIE_LDFLAGS -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         "pr23169f" \
 659     ] \
 660 ]
 661
 662 run_ld_link_exec_tests [list \
 663     [list \
 664         "Run pr18808" \
 665         "-Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808.so" \
 666         "" \
 667         { dummy.c } \
 668         "pr18808" \
 669         "pr18808.out" \
 670     ] \
 671     [list \
 672         "Run pr18808 (-z now)" \
 673         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808n.so" \
 674         "" \
 675         { dummy.c } \
 676         "pr18808n" \
 677         "pr18808.out" \
 678     ] \
 679     [list \
 680         "Run pr18841 with libpr18841b.so" \
 681         "-Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841b.so" \
 682         "" \
 683         { dummy.c } \
 684         "pr18841b" \
 685         "pr18841.out" \
 686     ] \
 687     [list \
 688         "Run pr18841 with libpr18841c.so" \
 689         "-Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841c.so" \
 690         "" \
 691         { dummy.c } \
 692         "pr18841c" \
 693         "pr18841.out" \
 694     ] \
 695     [list \
 696         "Run pr18841 with libpr18841bn.so (-z now)" \
 697         "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841bn.so" \
 698         "" \
 699         { dummy.c } \
 700         "pr18841bn" \
 701         "pr18841.out" \
 702     ] \
 703     [list \
 704         "Run pr18841 with libpr18841cn.so (-z now)" \
 705         "-Wl,-z,now -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841cn.so" \
 706         "" \
 707         { dummy.c } \
 708         "pr18841cn" \
 709         "pr18841.out" \
 710     ] \
 711 ]
 712
 713 # The pr23169 testcase is not valid.  In general, you can't call ifunc
 714 # resolvers in another binary unless you know what you're doing.  In
 715 # particular you must ensure that the binary containing the resolver
 716 # is relocated before the resolver is called (for example, the
 717 # function addresses returned by the resolver may be loaded from the
 718 # GOT).
 719 # That does not happen for the pr23169 testcase where the resolver is
 720 # in the executable (which is relocated last by ld.so).
 721 if { [isnative]
 722      && !([istarget "powerpc-*-*"]
 723            || [istarget "aarch64*-*-*"]
 724            || [istarget "sparc*-*-*"]) } {
 725 run_ld_link_exec_tests [list \
 726     [list \
 727         "Run pr23169a" \
 728         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 729         "" \
 730         { pr23169b.c pr23169c.c } \
 731         "pr23169a" \
 732         "pass.out" \
 733         "$NOPIE_CFLAGS -O2 -g" \
 734     ] \
 735     [list \
 736         "Run pr23169b" \
 737         "-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 738         "" \
 739         { pr23169b.c pr23169c.c } \
 740         "pr23169b" \
 741         "pass.out" \
 742         "-fPIE -O2 -g" \
 743     ] \
 744     [list \
 745         "Run pr23169c" \
 746         "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 747         "" \
 748         { pr23169b.c pr23169c.c } \
 749         "pr23169c" \
 750         "pass.out" \
 751         "-fPIE -O2 -g" \
 752     ] \
 753     [list \
 754         "Run pr23169d" \
 755         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 756         "" \
 757         { pr23169b.c pr23169c.c } \
 758         "pr23169d" \
 759         "pass.out" \
 760         "$NOPIE_CFLAGS -O2 -g" \
 761     ] \
 762     [list \
 763         "Run pr23169e" \
 764         "-pie -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 765         "" \
 766         { pr23169b.c pr23169c.c } \
 767         "pr23169e" \
 768         "pass.out" \
 769         "-fPIE -O2 -g" \
 770     ] \
 771     [list \
 772         "Run pr23169f" \
 773         "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 774         "" \
 775         { pr23169b.c pr23169c.c } \
 776         "pr23169f" \
 777         "pass.out" \
 778         "-fPIE -O2 -g" \
 779     ] \
 780 ]
 781 if { $STATIC_PIE_LDFLAGS != "" } then {
 782     run_ld_link_exec_tests [list \
 783         [list \
 784             "Run pr23169g" \
 785             "$STATIC_PIE_LDFLAGS" \
 786             "" \
 787             { pr23169a.c pr23169b.c pr23169c.c } \
 788             "pr23169g" \
 789             "pass.out" \
 790             "-fPIE -O2 -g" \
 791         ] \
 792 ]
 793 }
 794 }
 795
 796 set ASFLAGS "$saved_ASFLAGS"