ld/testsuite/ld-elfcomm/elfcomm.exp

   1 # Expect script for common symbol tests
   2 #   Copyright 2003, 2005, 2006, 2007, 2008, 2009
   3 #   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 # Written by H.J. Lu (hjl@gnu.org)
  23 #
  24
  25 # Make sure that ld correctly handles common symbols in ELF.
  26
  27 # This test can only be run on ELF platforms.
  28 if ![is_elf_format] {
  29     return
  30 }
  31
  32 proc test_sort_common {} {
  33     global exec_output
  34     global objdump
  35     global srcdir
  36     global subdir
  37     global as
  38     global ld
  39
  40     set test "--sort-common (descending)"
  41
  42     verbose "Check to see that --sort-common sorts in descending alignment"
  43
  44     # We do not run the sort common tests for the DLX target because we know that the linker
  45     # will seg-fault.  The built-in DLX linker script requires that there be something in the
  46     # .text section and our sort-common.s file does not provide anything.
  47     if [istarget dlx-*-*] {
  48         untested "$test"
  49         return 0
  50     }
  51
  52     if { ![ld_assemble $as $srcdir/$subdir/sort-common.s tmpdir/sort-common.o] } {
  53         unresolved "$test"
  54         return 0
  55     }
  56
  57     if { ![ld_simple_link $ld tmpdir/sort-common.dx "--sort-common=descending tmpdir/sort-common.o"] } {
  58         fail "$test"
  59         return 0
  60     }
  61
  62     send_log "$objdump --syms tmpdir/sort-common.dx | grep var | sort\n"
  63     set exec_output [run_host_cmd "$objdump" "--syms tmpdir/sort-common.dx | grep var | sort"]
  64
  65     # Don't know why, but the CR ports fail this test.
  66     setup_xfail "cr16-*-*" "crx-*-*"
  67
  68     # Note: The second regexp is for targets which put small commons in a .sbss
  69     #  section and large commons in a .bss section.
  70     if {   ![regexp ".*var_16.*var_8.*var_4.*var_2.*var_1.*" $exec_output]
  71         && ![regexp ".*sbss.*var_8.*var_4.*var_2.*var_1.*bss.*var_16.*" $exec_output] } {
  72         fail $test
  73     } else {
  74         pass $test
  75     }
  76
  77     set test "--sort-common (ascending)"
  78
  79     verbose "Check to see that --sort-common=ascending sorts in ascending alignment"
  80
  81     if { ![ld_simple_link $ld tmpdir/sort-common.ax "--sort-common=ascending tmpdir/sort-common.o"] } {
  82         fail "$test"
  83         return 0
  84     }
  85
  86     send_log "$objdump --syms tmpdir/sort-common.ax | grep var | sort\n"
  87     set exec_output [run_host_cmd "$objdump" "--syms tmpdir/sort-common.ax | grep var | sort"]
  88
  89     if {![regexp ".*var_1.*var_2.*var_4.*var_8.*var_16.*" $exec_output]} {
  90         fail $test
  91         return 0
  92     }
  93
  94     pass $test
  95     return 1
  96 }
  97
  98 test_sort_common
  99
 100 set test1       "size/aligment change of common symbols"
 101 set test1w1     "$test1 (warning 1)"
 102 set test1w2     "$test1 (warning 2)"
 103 set test1c1     "$test1 (change 1)"
 104 set test1c2     "$test1 (change 2)"
 105
 106 if { ![is_remote host] && [which $CC] == 0 } {
 107     untested $test1w1
 108     untested $test1w2
 109     untested $test1c1
 110     untested $test1c2
 111     return
 112 }
 113 if { [istarget score-*-*] } {
 114     untested $test1w1
 115     untested $test1w2
 116     untested $test1c1
 117     untested $test1c2
 118     return
 119 }
 120
 121 proc dump_common1 { testname } {
 122     global exec_output
 123     global READELF
 124
 125     send_log "$READELF --syms tmpdir/common1.o | grep foo\n"
 126     set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common1.o | grep foo"]
 127
 128     if {   ![regexp "(\[        \]*)(\[0-9\]+):(\[      \]*)(\[0\]*)80(\[       \]+)4(\[        \]+)(COMMON|OBJECT)(\[  \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(PRC\\\[0xff03\\\]|COM|SCOM)(\[     \]+)_?foo2" $exec_output]
 129         || ![regexp "(\[        \]*)(\[0-9\]+):(\[      \]*)(\[0-9\]+)(\[       \]+)21(\[       \]+)OBJECT(\[   \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(\[0-9\]+)(\[       \]+)_?foo1" $exec_output] } {
 130         verbose $exec_output
 131         fail $testname
 132         return 0
 133     }
 134
 135     return 1
 136 }
 137
 138 proc stt_common_test { options testname } {
 139     global exec_output
 140     global READELF
 141     global ld
 142
 143     set options "$options tmpdir/common1a.o"
 144
 145     if { ! [ld_simple_link $ld tmpdir/common.exe $options] } {
 146       unresolved $testname
 147       return 0
 148     }
 149
 150     send_log "$READELF --syms tmpdir/common.exe | grep foo\n"
 151     set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common.exe | grep foo"]
 152
 153     if {![regexp "(\[   \]*)(\[0-9\]+):(\[      \]*)(\[0-9\]+)(\[       \]+)(\[0-9\]+)(\[       \]+)COMMON(\[   \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(\[0-9\]+)(\[       \]+)_?foo2" $exec_output] } {
 154         fail $testname
 155         return 0
 156     }
 157
 158     pass $testname
 159     return 1
 160 }
 161
 162 # Check to see if the assembler is generating symbols with the STT_COMMON type.
 163 proc assembler_generates_commons {} {
 164     global exec_output
 165     global READELF
 166
 167     verbose "Check to see if STT_COMMON symbols are being generated:"
 168     set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common1a.o | grep foo"]
 169
 170     if { ![regexp "(\[  \]*)(\[0-9\]+):(\[      \]*)(\[0\]*)80(\[       \]+).(\[        \]+)COMMON(\[   \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(PRC\\\[0xff03\\\]|COM|SCOM)(\[     \]+)_?foo2" $exec_output] } {
 171         verbose "STT_COMMON not generated"
 172         return 0
 173     }
 174
 175     verbose "STT_COMMON's are generated"
 176     return 1
 177 }
 178
 179
 180 if {   ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/common1a.c tmpdir/common1a.o]
 181     || ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/common1b.c tmpdir/common1b.o] } {
 182     unresolved $test1
 183     return
 184 }
 185
 186 global ld
 187 global link_output
 188
 189 set options "-r tmpdir/common1a.o tmpdir/common1b.o"
 190
 191 # SH64 targets needs an extra ld option for this test.
 192 if [istarget sh64*-*-*] {
 193     if [istarget sh64*l*-*-*] {
 194         set options "-mshlelf32 $options"
 195     } else {
 196         set options "-mshelf32 $options"
 197     }
 198 }
 199
 200 if { [ld_simple_link $ld tmpdir/common1.o $options] } {
 201     unresolved $test1w1
 202     return
 203 }
 204
 205 # This test fails on MIPS because the backend sets type_change_ok.
 206 # The size change warning is suppressed.
 207 if {[istarget mips*-*-*]} {
 208     if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output] } {
 209         fail $test1w1
 210     } else {
 211         pass $test1w1
 212     }
 213 } else {
 214     if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output]
 215          || ![regexp "Warning: size of symbol \`_?foo1\' changed from 2 in tmpdir/common1a.o to 21 in tmpdir/common1b.o" $link_output] } {
 216         fail $test1w1
 217     } else {
 218         pass $test1w1
 219     }
 220 }
 221
 222 if { [dump_common1 $test1c1] } {
 223     pass $test1c1
 224 }
 225
 226 set options "-r tmpdir/common1b.o tmpdir/common1a.o"
 227
 228 # SH64 targets needs an extra ld option for this test.
 229 if [istarget sh64*-*-*] {
 230     if [istarget sh64*l*-*-*] {
 231         set options "-mshlelf32 $options"
 232     } else {
 233         set options "-mshelf32 $options"
 234     }
 235 }
 236
 237 if { [ld_simple_link $ld tmpdir/common1.o $options] } {
 238     unresolved $test1w2
 239     return
 240 }
 241
 242 if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output] } {
 243     fail $test1w2
 244 } else {
 245     pass $test1w2
 246 }
 247
 248 if { [dump_common1 $test1c2] } {
 249     pass $test1c2
 250 }
 251
 252 #
 253 # The following tests are for when we are generating STT_COMMON symbols only.
 254 #
 255
 256 if { ![assembler_generates_commons] } {
 257     return
 258 }
 259
 260 stt_common_test "-static -e 0" "static link of common symbols"
 261 stt_common_test "-shared"      "shared link of common symbols"
 262 stt_common_test "-pie"         "position independent link of common symbols"
 263