1 # Expect script for common symbol tests
2 # Copyright 2003, 2005, 2006, 2007, 2008, 2009
3 # 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 # Written by H.J. Lu (hjl@gnu.org)
25 # Make sure that ld correctly handles common symbols in ELF.
27 # This test can only be run on ELF platforms.
32 proc test_sort_common {} {
40 set test "--sort-common (descending)"
42 verbose "Check to see that --sort-common sorts in descending alignment"
44 # We do not run the sort common tests for the DLX target because we know that the linker
45 # will seg-fault. The built-in DLX linker script requires that there be something in the
46 # .text section and our sort-common.s file does not provide anything.
47 if [istarget dlx-*-*] {
52 if { ![ld_assemble $as $srcdir/$subdir/sort-common.s tmpdir/sort-common.o] } {
57 if { ![ld_simple_link $ld tmpdir/sort-common.dx "--sort-common=descending tmpdir/sort-common.o"] } {
62 send_log "$objdump --syms tmpdir/sort-common.dx | grep var | sort\n"
63 set exec_output [run_host_cmd "$objdump" "--syms tmpdir/sort-common.dx | grep var | sort"]
65 # Don't know why, but the CR ports fail this test.
66 setup_xfail "cr16-*-*" "crx-*-*"
68 # Note: The second regexp is for targets which put small commons in a .sbss
69 # section and large commons in a .bss section.
70 if { ![regexp ".*var_16.*var_8.*var_4.*var_2.*var_1.*" $exec_output]
71 && ![regexp ".*sbss.*var_8.*var_4.*var_2.*var_1.*bss.*var_16.*" $exec_output] } {
77 set test "--sort-common (ascending)"
79 verbose "Check to see that --sort-common=ascending sorts in ascending alignment"
81 if { ![ld_simple_link $ld tmpdir/sort-common.ax "--sort-common=ascending tmpdir/sort-common.o"] } {
86 send_log "$objdump --syms tmpdir/sort-common.ax | grep var | sort\n"
87 set exec_output [run_host_cmd "$objdump" "--syms tmpdir/sort-common.ax | grep var | sort"]
89 if {![regexp ".*var_1.*var_2.*var_4.*var_8.*var_16.*" $exec_output]} {
100 set test1 "size/aligment change of common symbols"
101 set test1w1 "$test1 (warning 1)"
102 set test1w2 "$test1 (warning 2)"
103 set test1c1 "$test1 (change 1)"
104 set test1c2 "$test1 (change 2)"
106 if { ![is_remote host] && [which $CC] == 0 } {
113 if { [istarget score-*-*] } {
121 proc dump_common1 { testname } {
125 send_log "$READELF --syms tmpdir/common1.o | grep foo\n"
126 set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common1.o | grep foo"]
128 if { ![regexp "(\[ \]*)(\[0-9\]+):(\[ \]*)(\[0\]*)80(\[ \]+)4(\[ \]+)(COMMON|OBJECT)(\[ \]+)GLOBAL(\[ \]+)DEFAULT(\[ \]+)(PRC\\\[0xff03\\\]|COM|SCOM)(\[ \]+)_?foo2" $exec_output]
129 || ![regexp "(\[ \]*)(\[0-9\]+):(\[ \]*)(\[0-9\]+)(\[ \]+)21(\[ \]+)OBJECT(\[ \]+)GLOBAL(\[ \]+)DEFAULT(\[ \]+)(\[0-9\]+)(\[ \]+)_?foo1" $exec_output] } {
138 proc stt_common_test { options testname } {
143 set options "$options tmpdir/common1a.o"
145 if { ! [ld_simple_link $ld tmpdir/common.exe $options] } {
150 send_log "$READELF --syms tmpdir/common.exe | grep foo\n"
151 set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common.exe | grep foo"]
153 if {![regexp "(\[ \]*)(\[0-9\]+):(\[ \]*)(\[0-9\]+)(\[ \]+)(\[0-9\]+)(\[ \]+)COMMON(\[ \]+)GLOBAL(\[ \]+)DEFAULT(\[ \]+)(\[0-9\]+)(\[ \]+)_?foo2" $exec_output] } {
162 # Check to see if the assembler is generating symbols with the STT_COMMON type.
163 proc assembler_generates_commons {} {
167 verbose "Check to see if STT_COMMON symbols are being generated:"
168 set exec_output [run_host_cmd "$READELF" "--syms tmpdir/common1a.o | grep foo"]
170 if { ![regexp "(\[ \]*)(\[0-9\]+):(\[ \]*)(\[0\]*)80(\[ \]+).(\[ \]+)COMMON(\[ \]+)GLOBAL(\[ \]+)DEFAULT(\[ \]+)(PRC\\\[0xff03\\\]|COM|SCOM)(\[ \]+)_?foo2" $exec_output] } {
171 verbose "STT_COMMON not generated"
175 verbose "STT_COMMON's are generated"
179 # Explicitly use "-fcommon" so that even if $CFLAGS includes
180 # "-fno-common", these tests are compiled as expected.
181 if { ![ld_compile "$CC $CFLAGS -fcommon" $srcdir/$subdir/common1a.c tmpdir/common1a.o]
182 || ![ld_compile "$CC $CFLAGS -fcommon" $srcdir/$subdir/common1b.c tmpdir/common1b.o] } {
190 set options "-r tmpdir/common1a.o tmpdir/common1b.o"
192 # SH64 targets needs an extra ld option for this test.
193 if [istarget sh64*-*-*] {
194 if [istarget sh64*l*-*-*] {
195 set options "-mshlelf32 $options"
197 set options "-mshelf32 $options"
201 if { [ld_simple_link $ld tmpdir/common1.o $options] } {
206 # This test fails on MIPS because the backend sets type_change_ok.
207 # The size change warning is suppressed.
208 if {[istarget mips*-*-*]} {
209 if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output] } {
215 if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output]
216 || ![regexp "Warning: size of symbol \`_?foo1\' changed from 2 in tmpdir/common1a.o to 21 in tmpdir/common1b.o" $link_output] } {
223 if { [dump_common1 $test1c1] } {
227 set options "-r tmpdir/common1b.o tmpdir/common1a.o"
229 # SH64 targets needs an extra ld option for this test.
230 if [istarget sh64*-*-*] {
231 if [istarget sh64*l*-*-*] {
232 set options "-mshlelf32 $options"
234 set options "-mshelf32 $options"
238 if { [ld_simple_link $ld tmpdir/common1.o $options] } {
243 if { ![regexp "Warning: alignment (\[0-9\]+) of symbol \`_?foo1\' in tmpdir/common1b.o is smaller than 64 in tmpdir/common1a.o" $link_output] } {
249 if { [dump_common1 $test1c2] } {
254 # The following tests are for when we are generating STT_COMMON symbols only.
257 if { ![assembler_generates_commons] } {
261 stt_common_test "-static -e 0" "static link of common symbols"
262 stt_common_test "-shared" "shared link of common symbols"
263 stt_common_test "-pie" "position independent link of common symbols"