ld/testsuite/ld-scripts/crossref.exp

   1 # Test NOCROSSREFS in a linker script.
   2 # By Ian Lance Taylor, Cygnus Support.
   3 #   Copyright 2001
   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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20 set test1 "NOCROSSREFS 1"
  21 set test2 "NOCROSSREFS 2"
  22
  23 if { [which $CC] == 0 } {
  24     untested $test1
  25     untested $test2
  26     return
  27 }
  28
  29 # Xtensa targets currently default to putting literal values in a separate
  30 # section and that requires linker script support, so put literals in text.
  31 global CFLAGS
  32 if [istarget xtensa*-*-*] {
  33     set CFLAGS "$CFLAGS -mtext-section-literals"
  34 }
  35
  36 if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
  37      || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
  38     unresolved $test1
  39     unresolved $test2
  40     return
  41 }
  42
  43 set flags [big_or_little_endian]
  44
  45 # The a29k compiled code calls V_SPILL and V_FILL.  Since we don't
  46 # need to run this code, but we don't have definitions for those
  47 # functions, we just define them out.
  48 if [istarget a29k*-*-*] {
  49     set flags "$flags --defsym V_SPILL=0 --defsym V_FILL=0"
  50 }
  51
  52 if [istarget sh64*-*-elf] {
  53     # This is what gcc passes to ld by default.
  54     set flags "-mshelf32"
  55 }
  56
  57 verbose -log "$ld $flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"
  58
  59 catch "exec $ld $flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o" exec_output
  60
  61 set exec_output [prune_warnings $exec_output]
  62
  63 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
  64
  65 if [string match "" $exec_output] then {
  66     fail $test1
  67 } else {
  68     verbose -log "$exec_output"
  69     if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
  70         pass $test1
  71     } else {
  72         fail $test1
  73     }
  74 }
  75
  76 # Check cross references within a single object.
  77
  78 if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
  79     unresolved $test2
  80     return
  81 }
  82
  83 verbose -log "$ld $flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"
  84
  85 catch "exec $ld $flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o" exec_output
  86
  87 set exec_output [prune_warnings $exec_output]
  88
  89 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
  90
  91 if [string match "" $exec_output] then {
  92     fail $test2
  93 } else {
  94     verbose -log "$exec_output"
  95     if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
  96         pass $test2
  97     } else {
  98         fail $test2
  99     }
 100 }