ld/testsuite/ld-elf/elf.exp

   1 # Expect script for various ELF tests.
   2 #   Copyright (C) 2002-2018 Free Software Foundation, Inc.
   3 #
   4 # This file is part of the GNU Binutils.
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19 # MA 02110-1301, USA.
  20 #
  21
  22 # Exclude non-ELF targets.
  23
  24 if ![is_elf_format] {
  25     return
  26 }
  27
  28 set old_ldflags $LDFLAGS
  29 if { [istarget spu*-*-*] } {
  30     set LDFLAGS "$LDFLAGS --local-store 0:0"
  31 }
  32
  33 # hpux .comm differs from everyone else
  34 set hpux ""
  35 set old_asflags $ASFLAGS
  36 if [istarget "*-*-hpux*"] {
  37     set hpux "--defsym HPUX=1"
  38     set ASFLAGS "$ASFLAGS --defsym HPUX=1"
  39 }
  40
  41 if { [istarget alpha*-*-* ] } {
  42     # The compress1 test is written expecting 32-bit addresses; force the
  43     # executable down into the low address space to match.
  44     # ??? How can we adjust just the one testcase?
  45     set LDFLAGS "$LDFLAGS -Ttext-segment 0x1000000"
  46 }
  47
  48 if { [istarget "*-*-nacl*"] } {
  49     # The eh[1-4] cases are written to expect ELFCLASS64 layout on x86-64.
  50     # But the target default is ELFCLASS32.  So the cases explicitly use
  51     # -melf_x86_64 to select that, but NaCl needs a different emulation name.
  52     set options_regsub(ld) {-melf_x86_64 -melf_x86_64_nacl}
  53 }
  54
  55 if { [istarget "*-*-solaris*"] } {
  56     # Same for Solaris
  57     set options_regsub(ld) {-melf_x86_64 -melf_x86_64_sol2}
  58 }
  59
  60 if { [is_remote host] } then {
  61     remote_download host merge.ld
  62 }
  63
  64 # Note - the output file from the second test (symbol3w.a) is
  65 # used in the proc is_elf64 test below...
  66 run_ld_link_tests [list \
  67     [list "Build symbol3.a" \
  68         "" "" $hpux \
  69         {symbol3.s} {} "symbol3.a" ] \
  70     [list "Build symbol3w.a" \
  71         "" "" "" \
  72         {symbol3w.s} {} "symbol3w.a" ] \
  73 ]
  74
  75
  76 # True if the object format is known to be 64-bit ELF.
  77 #
  78 proc is_elf64 { binary_file } {
  79     global READELF
  80     global READELFFLAGS
  81
  82     set readelf_size ""
  83     catch "exec $READELF $READELFFLAGS -h $binary_file > readelf.out" got
  84
  85     if ![string match "" $got] then {
  86         return 0
  87     }
  88
  89     if { ![regexp "\n\[ \]*Class:\[ \]*ELF(\[0-9\]+)\n" \
  90                [file_contents readelf.out] nil readelf_size] } {
  91         verbose "FAILED to determine ELF size"
  92         return 0
  93     }
  94
  95     if { $readelf_size == "64" } {
  96         return 1
  97     }
  98
  99     return 0
 100 }
 101
 102 if [is_elf64 tmpdir/symbol3w.a] {
 103     set ASFLAGS "$ASFLAGS --defsym ALIGN=3"
 104 } else {
 105     set ASFLAGS "$ASFLAGS --defsym ALIGN=2"
 106 }
 107
 108
 109
 110 # Targets that use _bfd_generic_link_add_symbols won't pass pr21703 tests
 111 run_ld_link_tests {
 112       {"PR ld/21703"
 113         "--allow-multiple-definition tmpdir/pr21703-1.o tmpdir/pr21703-2.o" "" "" \
 114         {pr21703-1.s pr21703-2.s} {{readelf {-s} pr21703.sd}} "pr21703" }
 115       {"PR ld/21703 -r"
 116         "-r --allow-multiple-definition tmpdir/pr21703-3.o tmpdir/pr21703-4.o" "" "" \
 117         {pr21703-3.s pr21703-4.s} {{readelf {-s} pr21703-r.sd}} "pr21703.o" }
 118 } "d30v-*-*" "dlx-*-*" "pj-*-*"
 119
 120 # Only run these tests on targets that support creating shared libraries.
 121 if { [check_shared_lib_support] } then {
 122     run_ld_link_tests {
 123         {"Build pr14170a.o" "" "" "" {pr14170a.s} {} "pr14170.a" }
 124     }
 125     run_ld_link_tests {
 126         {"Build shared library for pr14170"
 127             "-shared" "" "" "pr14170b.s" {} "pr14170.so" }
 128     } "tic6x-*-*"
 129
 130     # bfin does not currently support copy relocs.
 131     run_ld_link_tests [list \
 132         [list "PR ld/14170" \
 133             "--no-dynamic-linker tmpdir/pr14170a.o tmpdir/pr14170.so" "" $hpux \
 134              {pr14170c.s} { } "pr14170" ] \
 135     ] "bfin-*-*"
 136
 137     # Targets that use _bfd_generic_link_add_symbols won't pass pr21703 tests
 138     # Not will tic6x with PIC/PID warning, or hppa64 with dot-symbols
 139     run_ld_link_tests {
 140         {"PR ld/21703 shared"
 141          "-shared --allow-multiple-definition --version-script pr21703.ver tmpdir/pr21703-3.o tmpdir/pr21703-4.o" "" "" \
 142          {pr21703-3.s pr21703-4.s} {{readelf {--dyn-syms} pr21703-shared.sd}} "pr21703.so" }
 143     } "d30v-*-*" "dlx-*-*" "pj-*-*" "tic6x-*-*" "hppa64-*-*"
 144
 145     # This target requires extra GAS options when building non-PIC code
 146     # for linking with shared libraries.
 147     set AFLAGS_NONPIC ""
 148     if [istarget "mips*-*-*"] {
 149         append AFLAGS_NONPIC " -call_nonpic"
 150     }
 151
 152     # Run a test to check linking a shared library with a broken linker
 153     # script that accidentally marks dynamic sections as notes.  The
 154     # resulting executable is not expected to work, but the linker
 155     # should not seg-fault whilst creating the binary.
 156     # Note: setup_xfail before run_ld_link_tests xfails only the first test.
 157     setup_xfail "tic6x-*-*"
 158     run_ld_link_tests {
 159         {"Build shared library for broken linker scrip test"
 160             "-shared --hash-style=sysv" "" "" "note-3.s" {} "note-3.so" }
 161         {"Link using broken linker script"
 162             "--script note-3.t tmpdir/note-3.so" "" "" ""
 163             { { ld "note-3.l" } }
 164             "a.out" }
 165     }
 166
 167     setup_xfail "tic6x-*-*"
 168     run_ld_link_tests {
 169         {"Build pr17068.so"
 170             "-shared" "" ""
 171             {pr17068d.s} {} "pr17068.so"}
 172         {"Build pr17068a.a"
 173             "" "" ""
 174             {pr17068a.s pr17068c.s pr17068ez.s} {} "pr17068a.a"}
 175         {"Build pr17068b.a"
 176             "" "" ""
 177             {pr17068b.s pr17068e.s} {} "pr17068b.a"}
 178     }
 179
 180     # bfin does not currently support copy relocs.
 181     run_ld_link_tests {
 182         {"pr17068 link --as-needed lib in group"
 183             "--as-needed --no-dynamic-linker" "--start-group tmpdir/pr17068a.a tmpdir/pr17068.so tmpdir/pr17068b.a --end-group" ""
 184             {start.s pr17068.s} {} "pr17068"}
 185     } "bfin-*-*"
 186
 187     # xfail on tic6x due to non-PIC/non-PID warnings
 188     # Fails on MIPS because ABI trickery means that a NULL reloc is emitted.
 189     # Fails on bfin because relocations are not created.
 190     run_ld_link_tests {
 191         {"-Bsymbolic-functions"
 192             "-shared -Bsymbolic-functions" "" ""
 193             {symbolic-func.s} {{readelf {-r --wide} symbolic-func.r}}
 194             "symbolic-func.so"}
 195     } "tic6x-*-*" "mips*-*-*" "bfin-*-*"
 196
 197     # xfail on tic6x due to non-PIC/non-PID warnings
 198     run_ld_link_tests {
 199         {"Build pr20995.so"
 200             "-shared" "" ""
 201             {pr20995b.s} {} "pr20995.so"}
 202     } "tic6x-*-*"
 203
 204     # xfail on arm*-*-eabi*.  The list can be enlarged to those targets that
 205     # don't support GNU_RELRO.  For more details, please see discussions at:
 206     #   https://sourceware.org/ml/binutils/2017-01/msg00441.html
 207     run_ld_link_tests {
 208         {"Build pr20995-2.so"
 209             "-shared -z relro" "" ""
 210             {pr20995c.s} {{readelf {-l --wide} pr20995-2so.r}} "pr20995-2.so"}
 211     } "tic6x-*-*" "arm*-*-eabi*" "hppa*64*-*-hpux*"
 212
 213     # These targets don't copy dynamic variables into .bss.
 214     setup_xfail "alpha-*-*" "bfin-*-*" "ia64-*-*" "xtensa-*-*"
 215     # or don't have .data.rel.ro
 216     setup_xfail "hppa*64*-*-hpux*"
 217     run_ld_link_tests [list \
 218         [list \
 219             "pr20995" \
 220             "" "tmpdir/pr20995.so" "$AFLAGS_NONPIC" \
 221             {pr20995a.s} {{readelf {-S --wide} pr20995.r}} "pr20995"]]
 222
 223     # xfail on arm*-*-eabi* is particularly because of no support of GNU_RELRO.
 224     # Please see the link above for details.
 225     setup_xfail "alpha-*-*" "bfin-*-*" "ia64-*-*" "xtensa-*-*" "arm*-*-eabi*"
 226     setup_xfail "hppa*64*-*-hpux*"
 227     run_ld_link_tests [list \
 228         [list \
 229             "pr20995-2" \
 230             "" "tmpdir/pr20995-2.so" "$AFLAGS_NONPIC" \
 231             {pr20995a.s} {{readelf {-S --wide} pr20995.r}} "pr20995-2"]]
 232
 233     setup_xfail "tic6x-*-*"
 234     run_ld_link_tests {
 235         {"Build pr22374 shared library"
 236             "-shared" "" "" "pr22374b.s" {} "pr22374.so" }
 237     }
 238     if { ![istarget "alpha-*-*"]
 239          && ![istarget "frv-*-*"]
 240          && ![istarget "hppa*-*-*"]
 241          && ![istarget "i?86-*-*"]
 242          && ![istarget "ia64-*-*"]
 243          && ![istarget "microblaze-*-*"]
 244          && ![istarget "powerpc*-*-*"]
 245          && ![istarget "x86_64-*-*"]
 246          && ![istarget "xtensa-*-*"] } {
 247         # The next test checks that copy relocs are not used unnecessarily,
 248         # but that is just an optimization so don't complain loudly.
 249         setup_xfail "*-*-*"
 250     }
 251     run_ld_link_tests {
 252         {"pr22374 function pointer initialization"
 253             "" "tmpdir/pr22374.so" "" "pr22374a.s"
 254             { {readelf {--wide -r --dyn-syms} "pr22374-1.r"}
 255               {readelf {--wide -r} "pr22374-2.r"} }
 256             "pr22374" }
 257     }
 258 }
 259
 260 if [is_underscore_target] {
 261     set ASFLAGS "$ASFLAGS --defsym UNDERSCORE=1"
 262 }
 263
 264 set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
 265 foreach t $test_list {
 266     # We need to strip the ".d", but can leave the dirname.
 267     verbose [file rootname $t]
 268     run_dump_test [file rootname $t]
 269 }
 270
 271 # Targets using the generic linker backend don't support generating
 272 # an import library.
 273 set xfail_implib ""
 274 if [is_generic_elf] {
 275     set xfail_implib "*-*-*"
 276 }
 277
 278 # Check that the --out-implib option work correctly.
 279 run_ld_link_tests [list \
 280     [list "Generate empty import library" \
 281         "--out-implib=tmpdir/implib.lib" "" \
 282         [concat "--defsym NO_GLOBAL=1" $hpux] \
 283         {implib.s} \
 284         {{ld empty-implib.out}} \
 285         "implib" ] \
 286     [list "Generate import library" \
 287         "--out-implib=tmpdir/implib.lib" "" \
 288         $hpux \
 289         {implib.s} \
 290         {{readelf {-s tmpdir/implib.lib} implib.rd}} \
 291         "implib" ] \
 292 ] $xfail_implib
 293
 294 if { [istarget *-*-linux*]
 295      || [istarget *-*-nacl*]
 296      || [istarget *-*-gnu*] } {
 297     run_ld_link_tests {
 298         {"Weak symbols in dynamic objects 1 (support)"
 299             "-shared" "" "" {weak-dyn-1a.s}
 300             {}
 301             "libweakdyn1a.so"}
 302         {"Weak symbols in dynamic objects 1 (main test)"
 303             "-shared tmpdir/libweakdyn1a.so -Tweak-dyn-1.ld" "" "" {weak-dyn-1b.s}
 304             {{readelf {--relocs --wide} weak-dyn-1.rd}}
 305             "libweakdyn1b.so"}
 306     }
 307 }
 308
 309 #v850 gas complains about .tbss.var section attributes.
 310 if { [check_gc_sections_available] && ![istarget "v850-*-*"] } {
 311     run_ld_link_tests {
 312         {"--gc-sections on tls variable"
 313             "--gc-section" "" "" {tls_gc.s} {} "tls_gc"}
 314     }
 315 }
 316
 317 if { [istarget *-*-*linux*]
 318      || [istarget *-*-nacl*]
 319      || [istarget *-*-gnu*] } {
 320     run_ld_link_tests {
 321         {"stack exec" "-z execstack" "" "" {stack.s}
 322             {{readelf {-Wl} stack-exec.rd}} "stack-exec.exe"}
 323         {"stack size" "-z stack-size=0x123400" "" "" {stack.s}
 324             {{readelf {-Wl} stack-size.rd}} "stack-size.exe"}
 325     }
 326 }
 327
 328 set LDFLAGS $old_ldflags
 329 set ASFLAGS $old_asflags
 330
 331 # Check to see if the C compiler works
 332 if { [which $CC] == 0 } {
 333     return
 334 }
 335
 336 if [check_gc_sections_available] {
 337     run_cc_link_tests {
 338         {"PR ld/13195" "-Wl,--gc-sections" ""
 339          {pr13195.c} {} "pr13195"}
 340     }
 341 }
 342
 343 set array_tests {
 344     {"preinit array" "" ""
 345         {preinit.c} "preinit" "preinit.out"}
 346     {"init array" "" ""
 347         {init.c} "init" "init.out"}
 348     {"fini array" "" ""
 349         {fini.c} "fini" "fini.out"}
 350     {"init array mixed" "" ""
 351         {init-mixed.c} "init-mixed" "init-mixed.out" "-I."}
 352 }
 353 set array_tests_pie {
 354     {"PIE preinit array" "-pie" ""
 355         {preinit.c} "preinit" "preinit.out" "-fPIE"}
 356     {"PIE init array" "-pie" ""
 357         {init.c} "init" "init.out" "-fPIE"}
 358     {"PIE fini array" "-pie" ""
 359         {fini.c} "fini" "fini.out" "-fPIE"}
 360     {"PIE init array mixed" "-pie" ""
 361         {init-mixed.c} "init-mixed" "init-mixed.out" "-I. -fPIE"}
 362     {"PIE PR ld/14525" "-pie" ""
 363         {pr14525.c} "pr14525" "pr14525.out" "-fPIE"}
 364 }
 365 set array_tests_static {
 366     {"static preinit array" "-static" ""
 367         {preinit.c} "preinit" "preinit.out"}
 368     {"static init array" "-static" ""
 369         {init.c} "init" "init.out"}
 370     {"static fini array" "-static" ""
 371         {fini.c} "fini" "fini.out"}
 372     {"static init array mixed" "-static" ""
 373         {init-mixed.c} "init-mixed" "init-mixed.out" "-I."}
 374 }
 375
 376 # NetBSD ELF systems do not currently support the .*_array sections.
 377 set xfails "*-*-netbsdelf*"
 378 run_ld_link_exec_tests $array_tests $xfails
 379
 380 if { [istarget *-*-linux*]
 381      || [istarget *-*-nacl*]
 382      || [istarget *-*-gnu*] } {
 383     run_ld_link_exec_tests $array_tests_pie $xfails
 384
 385     run_ld_link_exec_tests [list \
 386         [list \
 387             "Run mbind2a" \
 388             "$NOPIE_LDFLAGS -Wl,-z,common-page-size=0x4000" \
 389             "" \
 390             { mbind2a.s mbind2b.c } \
 391             "mbind2a" \
 392             "pass.out" \
 393             "-O2 -I../bfd" \
 394         ] \
 395         [list \
 396             "Run mbind2b" \
 397             "-static -Wl,-z,common-page-size=0x4000" \
 398             "" \
 399             { mbind2a.s mbind2b.c } \
 400             "mbind2b" \
 401             "pass.out" \
 402             "-O2 -I../bfd" \
 403         ] \
 404     ]
 405 }
 406
 407 # <http://www.gnu.org/software/hurd/open_issues/binutils.html#static>
 408 # Be cautious to not XFAIL for *-*-linux-gnu*, *-*-kfreebsd-gnu*, etc.
 409 switch -regexp $target_triplet {
 410     ^\[^-\]*-\[^-\]*-gnu.*$ {
 411         set xfails "*-*-*"
 412     }
 413 }
 414 run_ld_link_exec_tests $array_tests_static $xfails
 415
 416 catch "exec rm -f tmpdir/preinit tmpdir/init tmpdir/fini tmpdir/init-mixed" status