1 # Test NOCROSSREFS in a linker script.
2 # By Ian Lance Taylor, Cygnus Support.
3 # Copyright (C) 2000-2020 Free Software Foundation, Inc.
5 # This file is part of the GNU Binutils.
7 # This program is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write to the Free Software
19 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 set test1 "NOCROSSREFS 1"
23 set test2 "NOCROSSREFS 2"
24 set test3 "NOCROSSREFS 3"
25 set test4 "NOCROSSREFS_TO 1"
26 set test5 "NOCROSSREFS_TO 2"
27 set test6 "NOCROSSREFS_TO 3"
28 set test7 "NOCROSSREFS_TO 4"
30 if { ![check_compiler_available] } {
42 set old_CFLAGS "$CFLAGS"
44 # Pass -fplt to CC since -fno-plt doesn't work with NOCROSSREFS tests.
45 # Also add $NOPIE_CFLAGS since PIE doesn't work NOCROSSREFS tests.
46 global PLT_CFLAGS NOPIE_CFLAGS
48 set CC "$CC $PLT_CFLAGS $NOPIE_CFLAGS"
50 # Xtensa targets currently default to putting literal values in a separate
51 # section and that requires linker script support, so put literals in text.
52 if [istarget xtensa*-*-*] {
53 set CFLAGS "$CFLAGS -mtext-section-literals"
56 # Prevent the use of the MeP's small data area which references a symbol
57 # called __sdabase which will not be defined by our test linker scripts.
58 if [istarget mep*-*-elf] {
62 # The .dsbt section and __c6xabi_DSBT_BASE are not defined in our test
64 if [istarget tic6x*-*-*] {
65 set CFLAGS "-mno-dsbt -msdata=none"
68 if { ![ld_compile $CC "$srcdir/$subdir/cross1.c" tmpdir/cross1.o] \
69 || ![ld_compile $CC "$srcdir/$subdir/cross2.c" tmpdir/cross2.o] } {
72 set CFLAGS "$old_CFLAGS"
77 set flags [big_or_little_endian]
79 # arc-elf32 requires the symbol __SDATA_BEGIN__ to always be present.
80 if [istarget arc*-*-elf32] {
81 set flags "$flags --defsym=__SDATA_BEGIN__=0"
84 # IA64 has both ordered and unordered sections in an input file.
87 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross1 -T $srcdir/$subdir/cross1.t tmpdir/cross1.o tmpdir/cross2.o"]
89 set exec_output [prune_warnings $exec_output]
91 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
93 if [string match "" $exec_output] then {
96 verbose -log "$exec_output"
97 if [regexp "prohibited cross reference from .* to `.*foo' in" $exec_output] {
104 # Check cross references within a single object.
106 if { ![ld_compile $CC "$srcdir/$subdir/cross3.c" tmpdir/cross3.o] } {
108 set CFLAGS "$old_CFLAGS"
113 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross2 -T $srcdir/$subdir/cross2.t tmpdir/cross3.o"]
114 set exec_output [prune_warnings $exec_output]
116 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
118 if [string match "" $exec_output] then {
121 verbose -log "$exec_output"
122 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
129 # Check cross references for ld -r
131 if { ![ld_compile $CC "$srcdir/$subdir/cross4.c" tmpdir/cross4.o] } {
133 set CFLAGS "$old_CFLAGS"
138 if ![ld_relocate $ld tmpdir/cross3-partial.o "tmpdir/cross1.o tmpdir/cross4.o"] {
140 set CFLAGS "$old_CFLAGS"
145 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross3 -T $srcdir/$subdir/cross3.t tmpdir/cross3-partial.o tmpdir/cross2.o"]
147 set exec_output [prune_warnings $exec_output]
149 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
151 if [string match "" $exec_output] then {
154 verbose -log "$exec_output"
158 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross4 -T $srcdir/$subdir/cross4.t tmpdir/cross4.o"]
159 set exec_output [prune_warnings $exec_output]
161 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
163 if [string match "" $exec_output] then {
166 verbose -log "$exec_output"
170 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross5 -T $srcdir/$subdir/cross5.t tmpdir/cross4.o"]
171 set exec_output [prune_warnings $exec_output]
173 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
175 if [string match "" $exec_output] then {
178 verbose -log "$exec_output"
179 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
186 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross6 -T $srcdir/$subdir/cross6.t tmpdir/cross3.o"]
187 set exec_output [prune_warnings $exec_output]
189 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
191 if [string match "" $exec_output] then {
194 verbose -log "$exec_output"
198 set exec_output [run_host_cmd "$ld" "$flags -o tmpdir/cross7 -T $srcdir/$subdir/cross7.t tmpdir/cross3.o"]
199 set exec_output [prune_warnings $exec_output]
201 regsub -all "(^|\n)($ld: warning: cannot find entry symbol\[^\n\]*\n?)" $exec_output "\\1" exec_output
203 if [string match "" $exec_output] then {
206 verbose -log "$exec_output"
207 if [regexp "prohibited cross reference from .* to `.*' in" $exec_output] {
214 set CFLAGS "$old_CFLAGS"