ld/testsuite/ld-scripts/crossref.exp

   1 # Test NOCROSSREFS in a linker script.
   2 # By Ian Lance Taylor, Cygnus Support.
   3 #   Copyright (C) 2000-2016 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 test1 "NOCROSSREFS 1"
  23 set test2 "NOCROSSREFS 2"
  24 set test3 "NOCROSSREFS 3"
  25 set test4 "NOCROSSREFS_TO 1"
  26 set test5 "NOCROSSREFS_TO 2"
  27 set test6 "NOCROSSREFS_TO 3"
  28 set test7 "NOCROSSREFS_TO 4"
  29
  30 if { ![is_remote host] && [which $CC] == 0 } {
  31     untested $test1
  32     untested $test2
  33     untested $test3
  34     untested $test4
  35     untested $test5
  36     untested $test6
  37     untested $test7
  38     return
  39 }
  40
  41 global CFLAGS
  42 set old_CFLAGS "$CFLAGS"
  43
  44 # Pass -fplt to CC since -fno-plt doesn't work with NOCROSSREFS tests.
  45 global PLT_CFLAGS
  46 set old_CC "$CC"
  47 set CC "$CC $PLT_CFLAGS"
  48
  49 # Xtensa targets currently default to putting literal values in a separate
  50 # section and that requires linker script support, so put literals in text.
  51 if [istarget xtensa*-*-*] {
  52     set CFLAGS "$CFLAGS -mtext-section-literals"
  53 }
  54
  55 # Prevent the use of the MeP's small data area which references a symbol
  56 # called __sdabase which will not be defined by our test linker scripts.
  57 if [istarget mep*-*-elf] {
  58     set CFLAGS "-mtiny=0"
  59 }
  60
  61 # The .dsbt section and __c6xabi_DSBT_BASE are not defined in our test
  62 # linker scripts.
  63 if [istarget tic6x*-*-*] {
  64     set CFLAGS "-mno-dsbt -msdata=none"
  65 }
  66
  67 if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
  68      || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
  69     unresolved $test1
  70     unresolved $test2
  71     set CFLAGS "$old_CFLAGS"
  72     set CC "$old_CC"
  73     return
  74 }
  75
  76 set flags [big_or_little_endian]
  77
  78 if [istarget sh64*-*-elf] {
  79     # This is what gcc passes to ld by default.
  80     set flags "-mshelf32"
  81 }
  82
  83 # arc-elf32 requires the symbol __SDATA_BEGIN__ to always be present.
  84 if [istarget arc*-*-elf32] {
  85     set flags "$flags --defsym=__SDATA_BEGIN__=0"
  86 }
  87
  88 # IA64 has both ordered and unordered sections in an input file.
  89 setup_xfail ia64-*-*
  90
  91 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"]
  92
  93 set exec_output [prune_warnings $exec_output]
  94
  95 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
  96
  97 if [string match "" $exec_output] then {
  98     fail $test1
  99 } else {
 100     verbose -log "$exec_output"
 101     if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
 102         pass $test1
 103     } else {
 104         fail $test1
 105     }
 106 }
 107
 108 # Check cross references within a single object.
 109
 110 if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
 111     unresolved $test2
 112     set CFLAGS "$old_CFLAGS"
 113     set CC "$old_CC"
 114     return
 115 }
 116
 117 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"]
 118 set exec_output [prune_warnings $exec_output]
 119
 120 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 121
 122 if [string match "" $exec_output] then {
 123     fail $test2
 124 } else {
 125     verbose -log "$exec_output"
 126     if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
 127         pass $test2
 128     } else {
 129         fail $test2
 130     }
 131 }
 132
 133 # Check cross references for ld -r
 134
 135 if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
 136     unresolved $test3
 137     set CFLAGS "$old_CFLAGS"
 138     set CC "$old_CC"
 139     return
 140 }
 141
 142 if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] {
 143     unresolved $test3
 144     set CFLAGS "$old_CFLAGS"
 145     set CC "$old_CC"
 146     return
 147 }
 148
 149 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"]
 150
 151 set exec_output [prune_warnings $exec_output]
 152
 153 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 154
 155 if [string match "" $exec_output] then {
 156     pass $test3
 157 } else {
 158     verbose -log "$exec_output"
 159     fail $test3
 160 }
 161
 162 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross4 -T $srcdir/$subdir/cross4.t tmpdir/cross4.o"]
 163 set exec_output [prune_warnings $exec_output]
 164
 165 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 166
 167 if [string match "" $exec_output] then {
 168     pass $test4
 169 } else {
 170     verbose -log "$exec_output"
 171     fail $test4
 172 }
 173
 174 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross5 -T $srcdir/$subdir/cross5.t tmpdir/cross4.o"]
 175 set exec_output [prune_warnings $exec_output]
 176
 177 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 178
 179 if [string match "" $exec_output] then {
 180     fail $test5
 181 } else {
 182     verbose -log "$exec_output"
 183     if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
 184         pass $test5
 185     } else {
 186         fail $test5
 187     }
 188 }
 189
 190 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross6 -T $srcdir/$subdir/cross6.t tmpdir/cross3.o"]
 191 set exec_output [prune_warnings $exec_output]
 192
 193 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 194
 195 if [string match "" $exec_output] then {
 196     pass $test6
 197 } else {
 198     verbose -log "$exec_output"
 199     fail $test6
 200 }
 201
 202 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross7 -T $srcdir/$subdir/cross7.t tmpdir/cross3.o"]
 203 set exec_output [prune_warnings $exec_output]
 204
 205 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 206
 207 if [string match "" $exec_output] then {
 208     fail $test7
 209 } else {
 210     verbose -log "$exec_output"
 211     if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
 212         pass $test7
 213     } else {
 214         fail $test7
 215     }
 216 }
 217
 218 set CFLAGS "$old_CFLAGS"
 219 set CC "$old_CC"