ld/testsuite/ld-scripts/weak.exp

   1 # Test weak symbols.
   2 # By Ian Lance Taylor, Cygnus Solutions.
   3 #   Copyright 1999, 2000, 2002, 2004, 2006, 2007
   4 #   Free Software Foundation, Inc.
   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 set testname "weak symbols"
  24
  25 # This test only works for ELF targets.
  26 # It ought to work for some a.out targets, but it doesn't.
  27 if {! [is_elf_format] && ! [is_pecoff_format]} {
  28     unsupported $testname
  29     return
  30 }
  31
  32 # Weak symbols are broken for non-i386 PE targets.
  33 if {! [istarget i?86-*-*]} {
  34     setup_xfail *-*-pe*
  35     setup_xfail x86_64-*-mingw*
  36 }
  37
  38 # hppa64 and or32 are incredibly broken
  39 setup_xfail hppa64-*-* or32-*-*
  40
  41 if {! [ld_assemble $as $srcdir/$subdir/weak1.s tmpdir/weak1.o]
  42     || ! [ld_assemble $as $srcdir/$subdir/weak2.s tmpdir/weak2.o]} then {
  43     # It's OK if .weak doesn't work on this target.
  44     unresolved $testname
  45     return
  46 }
  47
  48 global LDFLAGS
  49 set saved_LDFLAGS "$LDFLAGS"
  50 if [istarget "x86_64-*-mingw*"] then {
  51   set LDFLAGS "$LDFLAGS --image-base 0"
  52 }
  53
  54 set weak_regexp_big \
  55 ".*Contents of section .text:.*1000 00001008 0000200c 12121212 34343434.*Contents of section .data:.*2000 00001008 0000200c 56565656 78787878.*"
  56
  57 set weak_regexp_little \
  58 ".*Contents of section .text:.*1000 08100000 0c200000 12121212 34343434.*Contents of section .data:.*2000 08100000 0c200000 56565656 78787878.*"
  59
  60 if {! [ld_simple_link $ld tmpdir/weak "$flags -T $srcdir/$subdir/weak.t tmpdir/weak1.o tmpdir/weak2.o"] } then {
  61     fail $testname
  62 } else {
  63     if {[which $objdump] == 0} then {
  64         unresolved $testname
  65         set LDFLAGS "$saved_LDFLAGS"
  66         return
  67     }
  68
  69     verbose -log "$objdump -s tmpdir/weak"
  70     catch "exec $objdump -s tmpdir/weak" exec_output
  71     set exec_output [prune_warnings $exec_output]
  72     verbose -log $exec_output
  73
  74     if {[regexp $weak_regexp_big $exec_output] \
  75         || [regexp $weak_regexp_little $exec_output] } then {
  76         pass $testname
  77     } else {
  78         fail $testname
  79     }
  80 }
  81
  82 set LDFLAGS "$saved_LDFLAGS"