ld/testsuite/ld-scripts/crossref.exp

   1 # Test NOCROSSREFS in a linker script.
   2 # By Ian Lance Taylor, Cygnus Support.
   3 #   Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2007
   4 #   Free Software Foundation, Inc.
   5 #
   6 # This file is part of the GNU Binutils.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21 # MA 02110-1301, USA.
  22
  23 set test1 "NOCROSSREFS 1"
  24 set test2 "NOCROSSREFS 2"
  25 set test3 "NOCROSSREFS 3"
  26
  27 if { ![is_remote host] && [which $CC] == 0 } {
  28     untested $test1
  29     untested $test2
  30     untested $test3
  31     return
  32 }
  33
  34 # Xtensa targets currently default to putting literal values in a separate
  35 # section and that requires linker script support, so put literals in text.
  36 global CFLAGS
  37 if [istarget xtensa*-*-*] {
  38     set CFLAGS "$CFLAGS -mtext-section-literals"
  39 }
  40
  41 # If we have a compiler that doesn't use/reference dot-symbols, then
  42 # calls to functions reference the .opd section function descriptor.
  43 # This makes NOCROSSREFS rather useless on powerpc64.
  44 if [istarget powerpc64*-*-*] {
  45     set CFLAGS "$CFLAGS -mcall-aixdesc"
  46 }
  47
  48 # Prevent the use of the MeP's small data area which references a symbol
  49 # called __sdabase which will not be defined by our test linker scripts.
  50 if [istarget mep*-*-elf] {
  51     set CFLAGS "-mtiny=0"
  52 }
  53
  54 # The .dsbt section and __c6xabi_DSBT_BASE are not defined in our test
  55 # linker scripts.
  56 if [istarget tic6x*-*-*] {
  57     set CFLAGS "-mno-dsbt -msdata=none"
  58 }
  59
  60 if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
  61      || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
  62     unresolved $test1
  63     unresolved $test2
  64     return
  65 }
  66
  67 set flags [big_or_little_endian]
  68
  69 if [istarget sh64*-*-elf] {
  70     # This is what gcc passes to ld by default.
  71     set flags "-mshelf32"
  72 }
  73
  74 # IA64 has both ordered and unordered sections in an input file.
  75 setup_xfail ia64-*-*
  76
  77 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"]
  78
  79 set exec_output [prune_warnings $exec_output]
  80
  81 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
  82
  83 if [string match "" $exec_output] then {
  84     fail $test1
  85 } else {
  86     verbose -log "$exec_output"
  87     if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
  88         pass $test1
  89     } else {
  90         fail $test1
  91     }
  92 }
  93
  94 # Check cross references within a single object.
  95
  96 if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
  97     unresolved $test2
  98     return
  99 }
 100
 101 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"]
 102 set exec_output [prune_warnings $exec_output]
 103
 104 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 105
 106 if [string match "" $exec_output] then {
 107     fail $test2
 108 } else {
 109     verbose -log "$exec_output"
 110     if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
 111         pass $test2
 112     } else {
 113         fail $test2
 114     }
 115 }
 116
 117 # Check cross references for ld -r
 118
 119 if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
 120     unresolved $test3
 121     return
 122 }
 123
 124 if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] {
 125     unresolved $test3
 126     return
 127 }
 128
 129 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"]
 130
 131 set exec_output [prune_warnings $exec_output]
 132
 133 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 134
 135 if [string match "" $exec_output] then {
 136     pass $test3
 137 } else {
 138     verbose -log "$exec_output"
 139     fail $test3
 140 }