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.
6 # This file is part of the GNU Binutils.
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.
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.
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,
23 set test1 "NOCROSSREFS 1"
24 set test2 "NOCROSSREFS 2"
25 set test3 "NOCROSSREFS 3"
27 if { [which $CC] == 0 } {
34 # Xtensa targets currently default to putting literal values in a separate
35 # section and that requires linker script support, so put literals in text.
37 if [istarget xtensa*-*-*] {
38 set CFLAGS "$CFLAGS -mtext-section-literals"
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"
48 if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
49 || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
55 set flags [big_or_little_endian]
57 if [istarget sh64*-*-elf] {
58 # This is what gcc passes to ld by default.
62 # IA64 has both ordered and unordered sections in an input file.
65 verbose -log "$ld $flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"
67 catch "exec $ld $flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o" exec_output
69 set exec_output [prune_warnings $exec_output]
71 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
73 if [string match "" $exec_output] then {
76 verbose -log "$exec_output"
77 if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
84 # Check cross references within a single object.
86 if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
91 verbose -log "$ld $flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"
93 catch "exec $ld $flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o" exec_output
95 set exec_output [prune_warnings $exec_output]
97 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
99 if [string match "" $exec_output] then {
102 verbose -log "$exec_output"
103 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
110 # Check cross references for ld -r
112 if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
117 if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] {
122 verbose -log "$ld $flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"
124 catch "exec $ld $flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o" exec_output
126 set exec_output [prune_warnings $exec_output]
128 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
130 if [string match "" $exec_output] then {
133 verbose -log "$exec_output"