ld/testsuite/ld-undefined/weak-undef.exp

   1 # Test handling of weak undefined symbols
   2 #   Copyright 2001, 2002, 2004, 2007
   3 #   Free Software Foundation, Inc.
   4 #
   5 # This file is part of the GNU Binutils.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program; if not, write to the Free Software
  19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  20 # MA 02110-1301, USA.
  21
  22 set testname "weak undefined symbols"
  23
  24 # This test only works for ELF targets.  It ought to work for some
  25 # a.out targets, but it doesn't.
  26
  27 if { ![istarget *-*-sysv4*] \
  28      && ![istarget *-*-unixware*] \
  29      && ![istarget *-*-elf*] \
  30      && ![istarget *-*-eabi*] \
  31      && ![istarget hppa*64*-*-hpux*] \
  32      && ![istarget *-*-linux*] \
  33      && ![istarget *-*-irix5*] \
  34      && ![istarget *-*-irix6*] \
  35      && ![is_pecoff_format] \
  36      && ![istarget *-*-solaris2*] } then {
  37     unsupported $testname
  38     return
  39 }
  40
  41 if { [istarget *-*-linux*aout*] \
  42      || [istarget *-*-linux*oldld*] } {
  43     unsupported $testname
  44     return
  45 }
  46
  47 # Weak symbols are broken for non-i386 PE targets.
  48 if {! [istarget i?86-*-*]} {
  49     setup_xfail *-*-pe*
  50 }
  51
  52 setup_xfail hppa64-*-* pj-*-*
  53
  54 if {! [ld_assemble $as $srcdir/$subdir/weak-undef.s tmpdir/weak-undef.o]} then {
  55     # It's OK if .weak doesn't work on this target.
  56     unresolved $testname
  57     return
  58 }
  59
  60 # The linker should accept references to undefined weaks without error,
  61 # and resolve them to zero.
  62
  63 set output_regexp \
  64 ".*Contents of section .data:.*0000 00000000 11111111.*"
  65
  66 if {! [ld_simple_link $ld tmpdir/weak-undef "$flags tmpdir/weak-undef.o -T $srcdir/$subdir/weak-undef.t"] } then {
  67     fail $testname
  68 } else {
  69     if {[which $objdump] == 0} then {
  70         unresolved $testname
  71         return
  72     }
  73
  74     verbose -log "$objdump -s tmpdir/weak-undef"
  75     catch "exec $objdump -s tmpdir/weak-undef" exec_output
  76     set exec_output [prune_warnings $exec_output]
  77     verbose -log $exec_output
  78
  79     if {[regexp $output_regexp $exec_output]} then {
  80         pass $testname
  81     } else {
  82         fail $testname
  83     }
  84 }