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, 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 if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
  49      || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
  50     unresolved $test1
  51     unresolved $test2
  52     return
  53 }
  54
  55 set flags [big_or_little_endian]
  56
  57 if [istarget sh64*-*-elf] {
  58     # This is what gcc passes to ld by default.
  59     set flags "-mshelf32"
  60 }
  61
  62 # IA64 has both ordered and unordered sections in an input file.
  63 setup_xfail ia64-*-*
  64
  65 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"]
  66
  67 set exec_output [prune_warnings $exec_output]
  68
  69 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
  70
  71 if [string match "" $exec_output] then {
  72     fail $test1
  73 } else {
  74     verbose -log "$exec_output"
  75     if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
  76         pass $test1
  77     } else {
  78         fail $test1
  79     }
  80 }
  81
  82 # Check cross references within a single object.
  83
  84 if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
  85     unresolved $test2
  86     return
  87 }
  88
  89 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"]
  90 set exec_output [prune_warnings $exec_output]
  91
  92 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
  93
  94 if [string match "" $exec_output] then {
  95     fail $test2
  96 } else {
  97     verbose -log "$exec_output"
  98     if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
  99         pass $test2
 100     } else {
 101         fail $test2
 102     }
 103 }
 104
 105 # Check cross references for ld -r
 106
 107 if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
 108     unresolved $test3
 109     return
 110 }
 111
 112 if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] {
 113     unresolved $test3
 114     return
 115 }
 116
 117 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"]
 118
 119 set exec_output [prune_warnings $exec_output]
 120
 121 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
 122
 123 if [string match "" $exec_output] then {
 124     pass $test3
 125 } else {
 126     verbose -log "$exec_output"
 127     fail $test3
 128 }