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 # hpux assembly is weird
  33 if [istarget "hppa*-*-hpux*"] {
  34     return
  35 }
  36
  37 proc test_sort_common {} {
  38     global exec_output
  39     global objdump
  40     global srcdir
  41     global subdir
  42     global as
  43     global ld
  44
  45     set test "--sort-common (descending)"
  46
  47     verbose "Check to see that --sort-common sorts in descending alignment"
  48
  49     # We do not run the sort common tests for the DLX target because we know that the linker
  50     # will seg-fault.  The built-in DLX linker script requires that there be something in the
  51     # .text section and our sort-common.s file does not provide anything.
  52     if [istarget dlx-*-*] {
  53         untested "$test"
  54         return 0
  55     }
  56
  57     if { ![ld_assemble $as $srcdir/$subdir/sort-common.s tmpdir/sort-common.o] } {
  58         unresolved "$test"
  59         return 0
  60     }
  61
  62     if { ![ld_simple_link $ld tmpdir/sort-common.dx "--sort-common=descending tmpdir/sort-common.o"] } {
  63         fail "$test"
  64         return 0
  65     }
  66
  67     send_log "$objdump --syms tmpdir/sort-common.dx | grep var | sort\n"
  68     set exec_output [run_host_cmd "$objdump" "--syms tmpdir/sort-common.dx | grep var | sort"]
  69
  70     # Don't know why, but the CR ports fail this test.
  71     setup_xfail "cr16-*-*" "crx-*-*"
  72
  73     # Note: The second regexp is for targets which put small commons in a .sbss
  74     #  section and large commons in a .bss section.
  75     if {   ![regexp ".*var_16.*var_8.*var_4.*var_2.*var_1.*" $exec_output]
  76         && ![regexp ".*sbss.*var_8.*var_4.*var_2.*var_1.*bss.*var_16.*" $exec_output] } {
  77         fail $test
  78     } else {
  79         pass $test
  80     }
  81
  82     set test "--sort-common (ascending)"
  83
  84     verbose "Check to see that --sort-common=ascending sorts in ascending alignment"
  85
  86     if { ![ld_simple_link $ld tmpdir/sort-common.ax "--sort-common=ascending tmpdir/sort-common.o"] } {
  87         fail "$test"
  88         return 0
  89     }
  90
  91     send_log "$objdump --syms tmpdir/sort-common.ax | grep var | sort\n"
  92     set exec_output [run_host_cmd "$objdump" "--syms tmpdir/sort-common.ax | grep var | sort"]
  93
  94     if {![regexp ".*var_1.*var_2.*var_4.*var_8.*var_16.*" $exec_output]} {
  95         fail $test
  96         return 0
  97     }
  98
  99     pass $test
 100     return 1
 101 }
 102
 103 test_sort_common
 104
 105 set test1       "size/aligment change of common symbols"
 106 set test1w1     "$test1 (warning 1)"
 107 set test1w2     "$test1 (warning 2)"
 108 set test1c1     "$test1 (change 1)"
 109 set test1c2     "$test1 (change 2)"
 110
 111 if { ![is_remote host] && [which $CC] == 0 } {
 112     untested $test1w1
 113     untested $test1w2
 114     untested $test1c1
 115     untested $test1c2
 116     return
 117 }
 118 if { [istarget score-*-*] } {
 119     untested $test1w1
 120     untested $test1w2
 121     untested $test1c1
 122     untested $test1c2
 123     return
 124 }
 125
 126 proc dump_common1 { testname } {
 127     global exec_output
 128     global READELF
 129
 130     send_log "$READELF --syms tmpdir/common1.o | grep foo\n"
 131     set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common1.o | grep foo"]
 132
 133     if {   ![regexp "(\[        \]*)(\[0-9\]+):(\[      \]*)(\[0\]*)80(\[       \]+)4(\[        \]+)(COMMON|OBJECT)(\[  \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(PRC\\\[0xff03\\\]|COM|SCOM)(\[     \]+)_?foo2" $exec_output]
 134         || ![regexp "(\[        \]*)(\[0-9\]+):(\[      \]*)(\[0-9\]+)(\[       \]+)21(\[       \]+)OBJECT(\[   \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(\[0-9\]+)(\[       \]+)_?foo1" $exec_output] } {
 135         verbose $exec_output
 136         fail $testname
 137         return 0
 138     }
 139
 140     return 1
 141 }
 142
 143 proc stt_common_test { options testname } {
 144     global exec_output
 145     global READELF
 146     global ld
 147
 148     set options "$options tmpdir/common1a.o"
 149
 150     if { ! [ld_simple_link $ld tmpdir/common.exe $options] } {
 151       unresolved $testname
 152       return 0
 153     }
 154
 155     send_log "$READELF --syms tmpdir/common.exe | grep foo\n"
 156     set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common.exe | grep foo"]
 157
 158     if {![regexp "(\[   \]*)(\[0-9\]+):(\[      \]*)(\[0-9\]+)(\[       \]+)(\[0-9\]+)(\[       \]+)COMMON(\[   \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(\[0-9\]+)(\[       \]+)_?foo2" $exec_output] } {
 159         fail $testname
 160         return 0
 161     }
 162
 163     pass $testname
 164     return 1
 165 }
 166
 167 # Check to see if the assembler is generating symbols with the STT_COMMON type.
 168 proc assembler_generates_commons {} {
 169     global exec_output
 170     global READELF
 171
 172     verbose "Check to see if STT_COMMON symbols are being generated:"
 173     set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common1a.o | grep foo"]
 174
 175     if { ![regexp "(\[  \]*)(\[0-9\]+):(\[      \]*)(\[0\]*)80(\[       \]+).(\[        \]+)COMMON(\[   \]+)GLOBAL(\[   \]+)DEFAULT(\[  \]+)(PRC\\\[0xff03\\\]|COM|SCOM)(\[     \]+)_?foo2" $exec_output] } {
 176         verbose "STT_COMMON not generated"
 177         return 0
 178     }
 179
 180     verbose "STT_COMMON's are generated"
 181     return 1
 182 }
 183
 184 # Explicitly use "-fcommon" so that even if $CFLAGS includes
 185 # "-fno-common", these tests are compiled as expected.
 186 if {   ![ld_compile "$CC $CFLAGS -fcommon" $srcdir/$subdir/common1a.c tmpdir/common1a.o]
 187     || ![ld_compile "$CC $CFLAGS -fcommon" $srcdir/$subdir/common1b.c tmpdir/common1b.o] } {
 188     unresolved $test1
 189     return
 190 }
 191
 192 global ld
 193 global link_output
 194
 195 set options "-r tmpdir/common1a.o tmpdir/common1b.o"
 196
 197 # SH64 targets needs an extra ld option for this test.
 198 if [istarget sh64*-*-*] {
 199     if [istarget sh64*l*-*-*] {
 200         set options "-mshlelf32 $options"
 201     } else {
 202         set options "-mshelf32 $options"
 203     }
 204 }
 205
 206 if { [ld_simple_link $ld tmpdir/common1.o $options] } {
 207     unresolved $test1w1
 208     return
 209 }
 210
 211 # This test fails on MIPS because the backend sets type_change_ok.
 212 # The size change warning is suppressed.  Same on hppa64.
 213 if {[istarget mips*-*-*] || [istarget hppa*64*-*-*]} {
 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         fail $test1w1
 216     } else {
 217         pass $test1w1
 218     }
 219 } else {
 220     if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output]
 221          || ![regexp "Warning: size of symbol \`_?foo1\' changed from 2 in tmpdir/common1a.o to 21 in tmpdir/common1b.o" $link_output] } {
 222         fail $test1w1
 223     } else {
 224         pass $test1w1
 225     }
 226 }
 227
 228 if { [dump_common1 $test1c1] } {
 229     pass $test1c1
 230 }
 231
 232 set options "-r tmpdir/common1b.o tmpdir/common1a.o"
 233
 234 # SH64 targets needs an extra ld option for this test.
 235 if [istarget sh64*-*-*] {
 236     if [istarget sh64*l*-*-*] {
 237         set options "-mshlelf32 $options"
 238     } else {
 239         set options "-mshelf32 $options"
 240     }
 241 }
 242
 243 if { [ld_simple_link $ld tmpdir/common1.o $options] } {
 244     unresolved $test1w2
 245     return
 246 }
 247
 248 if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output] } {
 249     fail $test1w2
 250 } else {
 251     pass $test1w2
 252 }
 253
 254 if { [dump_common1 $test1c2] } {
 255     pass $test1c2
 256 }
 257
 258 #
 259 # The following tests are for when we are generating STT_COMMON symbols only.
 260 #
 261
 262 if { ![assembler_generates_commons] } {
 263     return
 264 }
 265
 266 stt_common_test "-static -e 0" "static link of common symbols"
 267 stt_common_test "-shared"      "shared link of common symbols"
 268 stt_common_test "-pie"         "position independent link of common symbols"
 269