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

   1 # Expect script for common symbol override.
   2 #
   3 # Copyright (C) 2011-2020 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 # These targets do not default to linking with shared libraries.
  45 if { [istarget "mips*vr4100*-*-elf*"] \
  46      || [istarget "mips*vr4300*-*-elf*"] \
  47      || [istarget "mips*vr5000*-*-elf*"] } {
  48     append LFLAGS " -call_shared"
  49 }
  50
  51 set testname "Common symbol override test"
  52
  53 # Define a global symbol.
  54 run_ld_link_tests [list \
  55     [list \
  56         "$testname (auxiliary shared object build)" \
  57         "$LFLAGS -shared" "" \
  58         "$AFLAGS_PIC" \
  59         { comm-data1.s } \
  60         { \
  61             { readelf -s comm-data1.sd } \
  62         } \
  63         "libcomm-data.so" \
  64     ] \
  65 ]
  66
  67 # Set the pointer size according to the ELF flavor.
  68 set AFLAGS ""
  69 if [is_elf64 "tmpdir/libcomm-data.so"] {
  70     append AFLAGS " --defsym ELF64=1"
  71 }
  72 # HPUX targets use a different .comm syntax.
  73 if [istarget "*-*-hpux*"] {
  74     append AFLAGS " --defsym HPUX=1"
  75 }
  76
  77 # bfin does not currently support copy relocs.
  78 setup_xfail "bfin-*-*"
  79
  80 setup_xfail "arm*-*-*" "ld/13802"
  81
  82 # List targets here that keep copy relocs rather than eliminating
  83 # them where possible in favour to dynamic relocs in the relevant
  84 # loadable sections; see also the "-z nocopyreloc" command-line
  85 # option and the ELIMINATE_COPY_RELOCS macro some backends use.
  86 set copy_reloc [expr [istarget mn10300-*-*] || [istarget vax-*-*]]
  87
  88 # Verify that a common symbol has been converted to an undefined
  89 # reference to the global symbol of the same name defined above
  90 # and that the debug reference has been dropped.
  91 run_ld_link_tests [list \
  92     [list \
  93         "$testname" \
  94         "$LFLAGS -T comm-data2.ld -Ltmpdir -lcomm-data" "" \
  95         "$AFLAGS" \
  96         { comm-data2.s } \
  97         [list \
  98             [list readelf -s \
  99                 [expr { $copy_reloc ? "comm-data2r.sd" : "comm-data2.sd"}]] \
 100             [list readelf -r \
 101                 [expr { $copy_reloc ? "comm-data2r.rd" : "comm-data2.rd"}]] \
 102             [list readelf "-x .debug_foo" \
 103                 [expr { $copy_reloc ? "comm-data2r.xd" : "comm-data2.xd"}]]] \
 104         "comm-data" \
 105     ] \
 106     [list \
 107         "$testname 3a" \
 108         "-static" "" \
 109         "" \
 110         { comm-data3a.s comm-data3b.s } \
 111         { \
 112             { readelf -s comm-data3.sd } \
 113         } \
 114         "comm-data3a" \
 115     ] \
 116     [list \
 117         "$testname 3b" \
 118         "-static" "" \
 119         "" \
 120         { comm-data3b.s comm-data3a.s } \
 121         { \
 122             { readelf -s comm-data3.sd } \
 123         } \
 124         "comm-data3b" \
 125     ] \
 126 ]