ld/testsuite/ld-scripts/weak.exp

   1 # Test weak symbols.
   2 # By Ian Lance Taylor, Cygnus Solutions.
   3 #   Copyright (C) 1999-2025 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 symbols"
  23
  24 # This test only works for ELF targets and some PE targets.
  25 # It ought to work for some a.out targets, but it doesn't.
  26 if { [is_elf_format] } {
  27     # hppa64 is incredibly broken
  28     setup_xfail hppa64-*-*
  29     # elf32bfinfd target complains about fixups in read-only sections
  30     setup_xfail bfin-*-linux*
  31 } elseif { [is_pecoff_format] } {
  32     # Weak symbols are broken for most PE targets.
  33     if { ![istarget aarch64-*-*]
  34          && ![istarget i?86-*-*]
  35          && ![istarget sh-*-*]
  36          && ![istarget x86_64-*-*] } {
  37         setup_xfail *-*-*
  38     }
  39 } else {
  40     unsupported $testname
  41     return
  42 }
  43
  44 if {! [ld_assemble $as $srcdir/$subdir/weak1.s tmpdir/weak1.o]
  45     || ! [ld_assemble $as $srcdir/$subdir/weak2.s tmpdir/weak2.o]} then {
  46     # It's OK if .weak doesn't work on this target.
  47     unsupported $testname
  48     return
  49 }
  50
  51 set saved_LDFLAGS "$LDFLAGS"
  52 if { [is_pecoff_format] } then {
  53     set LDFLAGS "$LDFLAGS --image-base 0"
  54 }
  55
  56 set weak_regexp_big \
  57 ".*Contents of section .text:.*1000 00001008 0000200c 12121212 34343434.*Contents of section .data:.*2000 00001008 0000200c 56565656 78787878.*"
  58
  59 set weak_regexp_little \
  60 ".*Contents of section .text:.*1000 08100000 0c200000 12121212 34343434.*Contents of section .data:.*2000 08100000 0c200000 56565656 78787878.*"
  61
  62 if {! [ld_link $ld tmpdir/weak "$flags -T $srcdir/$subdir/weak.t tmpdir/weak1.o tmpdir/weak2.o"] } then {
  63     fail $testname
  64 } else {
  65     set exec_output [run_host_cmd "$objdump" "-s tmpdir/weak"]
  66     set exec_output [prune_warnings $exec_output]
  67     verbose -log $exec_output
  68
  69     if {[regexp $weak_regexp_big $exec_output] \
  70         || [regexp $weak_regexp_little $exec_output] } then {
  71         pass $testname
  72     } else {
  73         fail $testname
  74     }
  75 }
  76
  77 set LDFLAGS "$saved_LDFLAGS"