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.
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 { ![is_remote host
] && [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 # 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
] {
54 # The .dsbt section and __c6xabi_DSBT_BASE are not defined in our test
56 if [istarget tic6x
*-*-*] {
57 set CFLAGS
"-mno-dsbt -msdata=none"
60 if { ![ld_compile $CC
"$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
61 ||
![ld_compile $CC
"$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
67 set flags
[big_or_little_endian
]
69 if [istarget sh64
*-*-elf
] {
70 # This is what gcc passes to
ld by default.
74 # IA64 has both ordered and unordered sections in an input file.
77 set exec_output
[run_host_cmd
"$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"]
79 set exec_output
[prune_warnings $exec_output
]
81 regsub
-all
"(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
83 if [string match
"" $exec_output] then {
86 verbose
-log "$exec_output"
87 if [regexp
"prohibited cross reference from .* to `.*foo' in" $exec_output] {
94 # Check cross references within a single object.
96 if { ![ld_compile $CC
"$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
101 set exec_output
[run_host_cmd
"$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"]
102 set exec_output
[prune_warnings $exec_output
]
104 regsub
-all
"(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
106 if [string match
"" $exec_output] then {
109 verbose
-log "$exec_output"
110 if [regexp
"prohibited cross reference from .* to `.*' in" $exec_output] {
117 # Check cross references
for ld -r
119 if { ![ld_compile $CC
"$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
124 if ![ld_relocate $
ld tmpdir
/cross3
-partial.o
"tmpdir/cross1.o tmpdir/cross4.o"] {
129 set exec_output
[run_host_cmd
"$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"]
131 set exec_output
[prune_warnings $exec_output
]
133 regsub
-all
"(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
135 if [string match
"" $exec_output] then {
138 verbose
-log "$exec_output"