ld/testsuite/ld-scripts/weak.exp

   1 # Test weak symbols.
   2 # By Ian Lance Taylor, Cygnus Solutions.
   3 #   Copyright 1999, 2000, 2002, 2004, 2006
   4 #   Free Software Foundation, Inc.
   5 #
   6 # This file 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 2 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, MA 02110-1301, USA.
  19
  20 set testname "weak symbols"
  21
  22 # This test only works for ELF targets.
  23 # It ought to work for some a.out targets, but it doesn't.
  24 if {! [is_elf_format] && ! [is_pecoff_format]} {
  25     unsupported $testname
  26     return
  27 }
  28
  29 # Weak symbols are broken for non-i386 PE targets.
  30 if {! [istarget i?86-*-*]} {
  31     setup_xfail *-*-pe*
  32     setup_xfail *-*-mingw64*
  33 }
  34
  35 # hppa64 and or32 are incredibly broken
  36 setup_xfail hppa64-*-* or32-*-*
  37
  38 if {! [ld_assemble $as $srcdir/$subdir/weak1.s tmpdir/weak1.o]
  39     || ! [ld_assemble $as $srcdir/$subdir/weak2.s tmpdir/weak2.o]} then {
  40     # It's OK if .weak doesn't work on this target.
  41     unresolved $testname
  42     return
  43 }
  44
  45 global LDFLAGS
  46 set saved_LDFLAGS "$LDFLAGS"
  47 if [istarget "*-*-mingw64*"] then {
  48   set LDFLAGS "$LDFLAGS --image-base 0"
  49 }
  50
  51 set weak_regexp_big \
  52 ".*Contents of section .text:.*1000 00001008 0000200c 12121212 34343434.*Contents of section .data:.*2000 00001008 0000200c 56565656 78787878.*"
  53
  54 set weak_regexp_little \
  55 ".*Contents of section .text:.*1000 08100000 0c200000 12121212 34343434.*Contents of section .data:.*2000 08100000 0c200000 56565656 78787878.*"
  56
  57 if {! [ld_simple_link $ld tmpdir/weak "$flags -T $srcdir/$subdir/weak.t tmpdir/weak1.o tmpdir/weak2.o"] } then {
  58     fail $testname
  59 } else {
  60     if {[which $objdump] == 0} then {
  61         unresolved $testname
  62         set LDFLAGS "$saved_LDFLAGS"
  63         return
  64     }
  65
  66     verbose -log "$objdump -s tmpdir/weak"
  67     catch "exec $objdump -s tmpdir/weak" exec_output
  68     set exec_output [prune_warnings $exec_output]
  69     verbose -log $exec_output
  70
  71     if {[regexp $weak_regexp_big $exec_output] \
  72         || [regexp $weak_regexp_little $exec_output] } then {
  73         pass $testname
  74     } else {
  75         fail $testname
  76     }
  77 }
  78
  79 set LDFLAGS "$saved_LDFLAGS"