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
   4 #   Free Software Foundation, Inc.
   5 #
   6 # This file is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
  19
  20 set test1 "NOCROSSREFS 1"
  21 set test2 "NOCROSSREFS 2"
  22 set test3 "NOCROSSREFS 3"
  23
  24 if { [which $CC] == 0 } {
  25     untested $test1
  26     untested $test2
  27     untested $test3
  28     return
  29 }
  30
  31 # Xtensa targets currently default to putting literal values in a separate
  32 # section and that requires linker script support, so put literals in text.
  33 global CFLAGS
  34 if [istarget xtensa*-*-*] {
  35     set CFLAGS "$CFLAGS -mtext-section-literals"
  36 }
  37
  38 # If we have a compiler that doesn't use/reference dot-symbols, then
  39 # calls to functions reference the .opd section function descriptor.
  40 # This makes NOCROSSREFS rather useless on powerpc64.
  41 if [istarget powerpc64*-*-*] {
  42     set CFLAGS "$CFLAGS -mcall-aixdesc"
  43 }
  44
  45 if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
  46      || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
  47     unresolved $test1
  48     unresolved $test2
  49     return
  50 }
  51
  52 set flags [big_or_little_endian]
  53
  54 if [istarget sh64*-*-elf] {
  55     # This is what gcc passes to ld by default.
  56     set flags "-mshelf32"
  57 }
  58
  59 # IA64 has both ordered and unordered sections in an input file.
  60 setup_xfail ia64-*-*
  61
  62 verbose -log "$ld $flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"
  63
  64 catch "exec $ld $flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o" exec_output
  65
  66 set exec_output [prune_warnings $exec_output]
  67
  68 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
  69
  70 if [string match "" $exec_output] then {
  71     fail $test1
  72 } else {
  73     verbose -log "$exec_output"
  74     if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
  75         pass $test1
  76     } else {
  77         fail $test1
  78     }
  79 }
  80
  81 # Check cross references within a single object.
  82
  83 if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
  84     unresolved $test2
  85     return
  86 }
  87
  88 verbose -log "$ld $flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"
  89
  90 catch "exec $ld $flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o" exec_output
  91
  92 set exec_output [prune_warnings $exec_output]
  93
  94 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
  95
  96 if [string match "" $exec_output] then {
  97     fail $test2
  98 } else {
  99     verbose -log "$exec_output"
 100     if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
 101         pass $test2
 102     } else {
 103         fail $test2
 104     }
 105 }
 106
 107 # Check cross references for ld -r
 108
 109 if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
 110     unresolved $test3
 111     return
 112 }
 113
 114 if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] {
 115     unresolved $test3
 116     return
 117 }
 118
 119 verbose -log "$ld $flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"
 120
 121 catch "exec $ld $flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o" exec_output
 122
 123 set exec_output [prune_warnings $exec_output]
 124
 125 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 126
 127 if [string match "" $exec_output] then {
 128     pass $test3
 129 } else {
 130     verbose -log "$exec_output"
 131     fail $test3
 132 }