ld/testsuite/ld-elf/comm-data.exp

   1 # Expect script for common symbol override.
   2 #
   3 # Copyright (C) 2011-2017 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
  23 #
  24 # Written by Maciej W. Rozycki <macro@codesourcery.com>
  25 #
  26
  27 # This test is for ELF shared-library targets.
  28 if { ![is_elf_format] || ![check_shared_lib_support] } {
  29     return
  30 }
  31
  32 # This target requires extra GAS options when building code for shared
  33 # libraries.
  34 set AFLAGS_PIC ""
  35 if [istarget "tic6x-*-*"] {
  36     append AFLAGS_PIC " -mpic -mpid=near"
  37 }
  38 # This target requires a non-default emulation for successful shared
  39 # library/executable builds.
  40 set LFLAGS ""
  41 if [istarget "tic6x-*-*"] {
  42     append LFLAGS " -melf32_tic6x_le"
  43 }
  44
  45 set testname "Common symbol override test"
  46
  47 # Define a global symbol.
  48 run_ld_link_tests [list \
  49     [list \
  50         "$testname (auxiliary shared object build)" \
  51         "$LFLAGS -shared" "" \
  52         "$AFLAGS_PIC" \
  53         { comm-data1.s } \
  54         { \
  55             { readelf -s comm-data1.sd } \
  56         } \
  57         "libcomm-data.so" \
  58     ] \
  59 ]
  60
  61 # Set the pointer size according to the ELF flavor.
  62 set AFLAGS ""
  63 if [is_elf64 "tmpdir/libcomm-data.so"] {
  64     append AFLAGS " --defsym ELF64=1"
  65 }
  66 # HPUX targets use a different .comm syntax.
  67 if [istarget "*-*-hpux*"] {
  68     append AFLAGS " --defsym HPUX=1"
  69 }
  70
  71 # bfin does not currently support copy relocs.
  72 setup_xfail "bfin-*-*"
  73
  74 setup_xfail "arm*-*-*" "ld/13802"
  75
  76 # List targets here that keep copy relocs rather than eliminating
  77 # them where possible in favour to dynamic relocs in the relevant
  78 # loadable sections; see also the "-z nocopyreloc" command-line
  79 # option and the ELIMINATE_COPY_RELOCS macro some backends use.
  80 set copy_reloc [expr [istarget mn10300-*-*] || [istarget vax-*-*]]
  81
  82 # Verify that a common symbol has been converted to an undefined
  83 # reference to the global symbol of the same name defined above
  84 # and that the debug reference has been dropped.
  85 run_ld_link_tests [list \
  86     [list \
  87         "$testname" \
  88         "$LFLAGS -T comm-data2.ld -Ltmpdir -lcomm-data" "" \
  89         "$AFLAGS" \
  90         { comm-data2.s } \
  91         [list \
  92             [list readelf -s \
  93                 [expr { $copy_reloc ? "comm-data2r.sd" : "comm-data2.sd"}]] \
  94             [list readelf -r \
  95                 [expr { $copy_reloc ? "comm-data2r.rd" : "comm-data2.rd"}]] \
  96             [list readelf "-x .debug_foo" \
  97                 [expr { $copy_reloc ? "comm-data2r.xd" : "comm-data2.xd"}]]] \
  98         "comm-data" \
  99     ] \
 100     [list \
 101         "$testname 3a" \
 102         "-static" "" \
 103         "" \
 104         { comm-data3a.s comm-data3b.s } \
 105         { \
 106             { readelf -s comm-data3.sd } \
 107         } \
 108         "comm-data3a" \
 109     ] \
 110     [list \
 111         "$testname 3b" \
 112         "-static" "" \
 113         "" \
 114         { comm-data3b.s comm-data3a.s } \
 115         { \
 116             { readelf -s comm-data3.sd } \
 117         } \
 118         "comm-data3b" \
 119     ] \
 120 ]