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1 | # Expect script for ld-visibility tests |
2 | # Copyright (C) 2000 Free Software Foundation | |
3 | # | |
4 | # This file is free software; you can redistribute it and/or modify | |
5 | # it under the terms of the GNU General Public License as published by | |
6 | # the Free Software Foundation; either version 2 of the License, or | |
7 | # (at your option) any later version. | |
8 | # | |
9 | # This program is distributed in the hope that it will be useful, | |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | # GNU General Public License for more details. | |
13 | # | |
14 | # You should have received a copy of the GNU General Public License | |
15 | # along with this program; if not, write to the Free Software | |
16 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | # | |
18 | # Written by Ian Lance Taylor (ian@cygnus.com) | |
19 | # and H.J. Lu (hjl@gnu.org) | |
20 | # | |
21 | ||
22 | # Make sure that ld can generate ELF shared libraries with visibility. | |
23 | ||
24 | # This test can only be run if ld generates native executables. | |
25 | if ![isnative] then {return} | |
26 | ||
27 | # This test can only be run on a couple of ELF platforms. | |
28 | # Square bracket expressions seem to confuse istarget. | |
29 | if { ![istarget i386-*-linux*] \ | |
30 | && ![istarget i486-*-linux*] \ | |
31 | && ![istarget i586-*-linux*] \ | |
32 | && ![istarget i686-*-linux*] \ | |
33 | && ![istarget m68k-*-linux*] \ | |
34 | && ![istarget powerpc-*-linux*] \ | |
35 | && ![istarget sparc*-*-linux*] } { | |
36 | return | |
37 | } | |
38 | ||
39 | if { [istarget *-*-linux*aout*] \ | |
40 | || [istarget *-*-linux*oldld*] } { | |
41 | return | |
42 | } | |
43 | ||
44 | set tmpdir tmpdir | |
45 | set SHCFLAG "" | |
46 | ||
47 | if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { | |
48 | ||
49 | # AIX shared libraries do not seem to support useful features, | |
50 | # like overriding the shared library function or letting the | |
51 | # shared library refer to objects defined in the main program. We | |
52 | # avoid testing those features. | |
53 | set SHCFLAG "-DXCOFF_TEST" | |
54 | ||
55 | # The AIX 3.2.5 loader appears to randomly fail when loading | |
56 | # shared libraries from NSF mounted partitions, so we avoid any | |
57 | # potential problems by using a local directory. | |
58 | catch {exec /bin/sh -c "echo $$"} pid | |
59 | set tmpdir /usr/tmp/ld.$pid | |
60 | catch "exec mkdir $tmpdir" exec_status | |
61 | ||
62 | # On AIX, we need to explicitly export the symbols the shared | |
63 | # library is going to provide, and need. | |
64 | set file [open $tmpdir/xcoff.exp w] | |
65 | puts $file shlibvar1 | |
66 | puts $file shlibvar2 | |
67 | puts $file shlib_shlibvar1 | |
68 | puts $file shlib_shlibvar2 | |
69 | puts $file shlib_shlibcall | |
70 | puts $file shlib_shlibcalled | |
71 | puts $file shlib_checkfunptr1 | |
72 | puts $file shlib_getfunptr1 | |
73 | puts $file shlib_check | |
74 | close $file | |
75 | } | |
76 | ||
77 | # The test procedure. | |
78 | proc visibility_test { visibility progname testname main sh1 sh2 dat args } { | |
79 | global ld | |
80 | global srcdir | |
81 | global subdir | |
82 | global exec_output | |
83 | global link_output | |
84 | global host_triplet | |
85 | global tmpdir | |
86 | ||
87 | if [llength $args] { set shldflags [lindex $args 0] } else { set shldflags "" } | |
88 | ||
89 | # Build the shared library. | |
90 | # On AIX, we need to use an export file. | |
91 | set shared -shared | |
92 | if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { | |
93 | set shared "-bM:SRE -bE:$tmpdir/xcoff.exp" | |
94 | } | |
95 | if {![ld_simple_link $ld $tmpdir/$progname.so "$shared $shldflags $tmpdir/$sh1 $tmpdir/$sh2"]} { | |
96 | fail "$testname" | |
97 | return | |
98 | } | |
99 | ||
100 | # Link against the shared library. Use -rpath so that the | |
101 | # dynamic linker can locate the shared library at runtime. | |
102 | # On AIX, we must include /lib in -rpath, as otherwise the loader | |
103 | # can not find -lc. | |
104 | set rpath $tmpdir | |
105 | if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { | |
106 | set rpath /lib:$tmpdir | |
107 | } | |
108 | if ![ld_link $ld $tmpdir/$progname "-rpath $rpath $tmpdir/$main $tmpdir/$progname.so"] { | |
109 | if { [ string match $visibility "hidden" ] | |
110 | && [string match "*/main.c*: undefined reference to \`visibility\'" $link_output] } { | |
111 | pass "$testname" | |
112 | } else { | |
113 | fail "$testname" | |
114 | } | |
115 | return | |
116 | } | |
117 | ||
118 | if [ string match $visibility "hidden" ] { | |
119 | fail "$testname" | |
120 | } | |
121 | ||
122 | # Run the resulting program | |
123 | send_log "$tmpdir/$progname >$tmpdir/$progname.out\n" | |
124 | verbose "$tmpdir/$progname >$tmpdir/$progname.out" | |
125 | catch "exec $tmpdir/$progname >$tmpdir/$progname.out" exec_output | |
126 | if ![string match "" $exec_output] then { | |
127 | send_log "$exec_output\n" | |
128 | verbose "$exec_output" | |
129 | fail "$testname" | |
130 | return | |
131 | } | |
132 | ||
133 | send_log "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat\n" | |
134 | verbose "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat" | |
135 | catch "exec diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat" exec_output | |
136 | set exec_output [prune_warnings $exec_output] | |
137 | ||
138 | if {![string match "" $exec_output]} then { | |
139 | send_log "$exec_output\n" | |
140 | verbose "$exec_output" | |
141 | fail "$testname" | |
142 | return | |
143 | } | |
144 | ||
145 | pass "$testname" | |
146 | } | |
147 | ||
148 | proc visibility_run {visibility} { | |
149 | global CC | |
150 | global CFLAGS | |
151 | global SHCFLAG | |
152 | global srcdir | |
153 | global subdir | |
154 | global tmpdir | |
155 | global picflag | |
156 | global target_triplet | |
157 | ||
158 | if [ string match $visibility "hidden" ] { | |
159 | set VSBCFLAG "-DHIDDEN_TEST" | |
160 | } else { if [ string match $visibility "hidden_normal" ] { | |
161 | set VSBCFLAG "-DHIDDEN_NORMAL_TEST" | |
162 | } else { if [ string match $visibility "protected" ] { | |
163 | set VSBCFLAG "-DPROTECTED_TEST" | |
164 | } else { | |
165 | set VSBCFLAG "" | |
166 | }}} | |
167 | ||
168 | # Compile the main program. | |
169 | if ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o] { | |
170 | unresolved "visibility ($visibility) (non PIC)" | |
171 | unresolved "visibility ($visibility)" | |
172 | } else { | |
173 | # The shared library is composed of two files. First compile them | |
174 | # without using -fpic. That should work on an ELF system, | |
175 | # although it will be less efficient because the dynamic linker | |
176 | # will need to do more relocation work. However, note that not | |
177 | # using -fpic will cause some of the tests to return different | |
178 | # results. | |
179 | if { ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG" $srcdir/$subdir/sh1.c $tmpdir/sh1np.o] | |
180 | || ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG" $srcdir/$subdir/sh2.c $tmpdir/sh2np.o] } { | |
181 | unresolved "visibility ($visibility) (non PIC)" | |
182 | } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { | |
183 | visibility_test $visibility vnp "visibility ($visibility) (nonPIC)" mainnp.o sh1np.o sh2np.o xcoff | |
184 | } else { | |
185 | # SunOS non PIC shared libraries don't permit some cases of | |
186 | # overriding. | |
187 | if [ string match $visibility "protected" ] { | |
188 | setup_xfail $target_triplet | |
189 | } else { | |
190 | setup_xfail "*-*-sunos4*" | |
191 | } | |
192 | visibility_test $visibility vnp "visibility ($visibility) (non PIC)" mainnp.o sh1np.o sh2np.o elfvsb | |
193 | ||
194 | # Test ELF shared library relocations with a non-zero load | |
195 | # address for the library. Near as I can tell, the R_*_RELATIVE | |
196 | # relocations for various targets are broken in the case where | |
197 | # the load address is not zero (which is the default). | |
198 | if [ string match $visibility "protected" ] { | |
199 | setup_xfail $target_triplet | |
200 | } else { | |
201 | setup_xfail "*-*-sunos4*" | |
202 | setup_xfail "*-*-linux*libc1" | |
203 | } | |
204 | visibility_test $visibility vnp "visibility ($visibility) (non PIC, load offset)" \ | |
205 | mainnp.o sh1np.o sh2np.o elfvsb \ | |
206 | "-T $srcdir/$subdir/elf-offset.ld" | |
207 | } } | |
208 | ||
209 | # Now compile the code using -fpic. | |
210 | ||
211 | if { ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o] | |
212 | || ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG $picflag" $srcdir/$subdir/sh2.c $tmpdir/sh2p.o] } { | |
213 | unresolved "visibility ($visibility)" | |
214 | } else { | |
215 | if [ string match $visibility "protected" ] { | |
216 | setup_xfail $target_triplet | |
217 | } | |
218 | # SunOS can not compare function pointers correctly | |
219 | if [istarget "*-*-sunos4*"] { | |
220 | visibility_test $visibility vp "visibility ($visibility)" mainnp.o sh1p.o sh2p.o sun4 | |
221 | } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { | |
222 | visibility_test $visibility vp "visibility ($visibility)" mainnp.o sh1p.o sh2p.o xcoff | |
223 | } else { | |
224 | visibility_test $visibility vp "visibility ($visibility)" mainnp.o sh1p.o sh2p.o elfvsb | |
225 | } } | |
226 | } | |
227 | } | |
228 | ||
229 | # Now do the same tests again, but this time compile main.c PIC. | |
230 | if ![ld_compile "$CC $CFLAGS $SHCFLAG $VSBCFLAG $picflag" $srcdir/$subdir/main.c $tmpdir/mainp.o] { | |
231 | unresolved "visibility ($visibility) (PIC main, non PIC so)" | |
232 | unresolved "visibility ($visibility) (PIC main)" | |
233 | } else { | |
234 | if { [file exists $tmpdir/sh1np.o ] && [ file exists $tmpdir/sh2np.o ] } { | |
235 | if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { | |
236 | visibility_test $visibility vmpnp "visibility ($visibility) (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o xcoff | |
237 | } else { | |
238 | # SunOS non PIC shared libraries don't permit some cases of | |
239 | # overriding. | |
240 | if [ string match $visibility "protected" ] { | |
241 | setup_xfail $target_triplet | |
242 | } else { | |
243 | setup_xfail "*-*-sunos4*" | |
244 | } | |
245 | visibility_test $visibility vmpnp "visibility ($visibility) (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o elfvsb | |
246 | } | |
247 | } else { | |
248 | unresolved "visibility (PIC main, non PIC so)" | |
249 | } | |
250 | ||
251 | if { [file exists $tmpdir/sh1p.o ] && [ file exists $tmpdir/sh2p.o ] } { | |
252 | if [ string match $visibility "protected" ] { | |
253 | setup_xfail $target_triplet | |
254 | } | |
255 | if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { | |
256 | visibility_test $visibility vmpp "visibility ($visibility) (PIC main)" mainp.o sh1p.o sh2p.o xcoff | |
257 | } else { | |
258 | visibility_test $visibility vmpp "visibility ($visibility) (PIC main)" mainp.o sh1p.o sh2p.o elfvsb | |
259 | } | |
260 | } else { | |
261 | unresolved "visibility ($visibility) (PIC main)" | |
262 | } | |
263 | } | |
264 | } | |
265 | ||
266 | if [istarget mips*-*-*] { | |
267 | set picflag "" | |
268 | } else { | |
269 | # Unfortunately, the gcc argument is -fpic and the cc argument is | |
270 | # -KPIC. We have to try both. | |
271 | set picflag "-fpic" | |
272 | send_log "$CC $picflag\n" | |
273 | verbose "$CC $picflag" | |
274 | catch "exec $CC $picflag" exec_output | |
275 | send_log "$exec_output\n" | |
276 | verbose "--" "$exec_output" | |
277 | if { [string match "*illegal option*" $exec_output] \ | |
278 | || [string match "*option ignored*" $exec_output] \ | |
279 | || [string match "*unrecognized option*" $exec_output] \ | |
280 | || [string match "*passed to ld*" $exec_output] } { | |
281 | if [istarget *-*-sunos4*] { | |
282 | set picflag "-pic" | |
283 | } else { | |
284 | set picflag "-KPIC" | |
285 | } | |
286 | } | |
287 | } | |
288 | verbose "Using $picflag to compile PIC code" | |
289 | ||
290 | visibility_run hidden | |
291 | visibility_run hidden_normal | |
292 | visibility_run protected | |
293 | visibility_run normal | |
294 | ||
295 | if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { | |
296 | # Remove the temporary directory. | |
297 | catch "exec rm -rf $tmpdir" exec_status | |
298 | } |