1 # Expect script for ld-shared tests
2 # Copyright (C) 1994-2020 Free Software Foundation, Inc.
4 # This file is part of the GNU Binutils.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 # Written by Ian Lance Taylor (ian@cygnus.com)
24 # Make sure that ld can generate ELF shared libraries.
25 # Note that linking against ELF shared libraries is tested by the
28 # Check to see if the C compiler works
29 if { ![check_compiler_available] } {
33 # This test can only be run on a couple of ELF platforms.
34 # Square bracket expressions seem to confuse istarget.
35 if { ![istarget hppa*64*-*-hpux*] \
36 && ![istarget hppa*-*-linux*] \
37 && ![istarget i?86-*-sysv4*] \
38 && ![istarget i?86-*-unixware] \
39 && ![istarget i?86-*-elf*] \
40 && ![istarget i?86-*-linux*] \
41 && ![istarget i?86-*-gnu*] \
42 && ![istarget *-*-nacl*] \
43 && ![istarget ia64-*-elf*] \
44 && ![istarget ia64-*-linux*] \
45 && ![istarget m68k-*-linux*] \
46 && ![istarget mips*-*-irix5*] \
47 && ![istarget mips*-*-linux*] \
48 && ![istarget powerpc*-*-elf*] \
49 && ![istarget powerpc*-*-linux*] \
50 && ![istarget powerpc*-*-sysv4*] \
51 && ![istarget sparc*-*-elf] \
52 && ![istarget sparc*-*-solaris2*] \
53 && ![istarget sparc*-*-linux*] \
54 && ![istarget arm*-*-linux*] \
55 && ![istarget alpha*-*-linux*] \
56 && ![istarget rs6000*-*-aix*] \
57 && ![istarget powerpc*-*-aix*] \
58 && ![istarget s390*-*-linux*] \
59 && ![istarget aarch64*-*-linux*] \
60 && ![istarget x86_64-*-linux*] } {
66 set shared_needs_pic "no"
68 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
70 # AIX shared libraries do not seem to support useful features,
71 # like overriding the shared library function or letting the
72 # shared library refer to objects defined in the main program. We
73 # avoid testing those features.
74 set SHCFLAG "-DXCOFF_TEST"
76 # The AIX 3.2.5 loader appears to randomly fail when loading
77 # shared libraries from NSF mounted partitions, so we avoid any
78 # potential problems by using a local directory.
79 catch {exec /bin/sh -c "echo $$"} pid
80 set tmpdir /usr/tmp/ld.$pid
81 catch "exec mkdir $tmpdir" exec_status
83 # On AIX, we need to explicitly export the symbols the shared
84 # library is going to provide, and need.
85 set file [open $tmpdir/xcoff.exp w]
88 puts $file shlib_shlibvar1
89 puts $file shlib_shlibvar2
90 puts $file shlib_shlibcall
91 puts $file shlib_shlibcalled
92 puts $file shlib_checkfunptr1
93 puts $file shlib_getfunptr1
94 puts $file shlib_check
98 if [istarget arm*-*-linux*] {
99 # On ARM section anchors can change the symbol pre-emptability for
100 # non-PIC shared libraries, causing these tests to fail. Turn section
102 set SHCFLAG "-fno-section-anchors"
104 # On targets that have MOVW the compiler will emit relocations which
105 # the linker doesn't support when compiling -shared without -fpic. The
106 # test to find out whether we want to XFAIL the non-PIC tests requires
107 # a compile - so we pre-calculate it here. We also note that this can
108 # only affect arm*-*-*eabi* targets as the old ABI doesn't support v7.
109 if [istarget arm*-*-*eabi*] {
110 set file [open $tmpdir/movw-detect.c w]
111 puts $file "void foo(void) { __asm (\"movw r0, #0\"); }"
113 if [run_host_cmd_yesno "$CC" "$CFLAGS -c $tmpdir/movw-detect.c -o $tmpdir/movw-detect.o"] {
114 set shared_needs_pic "yes"
119 # The test procedure.
120 proc shared_test { progname testname main sh1 sh2 dat args } {
128 if [llength $args] { set shldflags [lindex $args 0] } else { set shldflags "" }
130 # Build the shared library.
131 # On AIX, we need to use an export file.
133 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
134 set shared "-bM:SRE -bE:$tmpdir/xcoff.exp"
136 if { [is_elf_format] && [check_shared_lib_support] } {
137 append shared " -Wl,-z,notext"
139 if {![ld_link $CC $tmpdir/$progname.so "$shared $shldflags $tmpdir/$sh1 $tmpdir/$sh2"]} {
144 # Link against the shared library. Use -rpath so that the
145 # dynamic linker can locate the shared library at runtime.
146 # On AIX, we must include /lib in -rpath, as otherwise the loader
149 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
150 set rpath /lib:$tmpdir
152 if ![ld_link $CC $tmpdir/$progname "-Wl,-rpath,$rpath $tmpdir/$main $tmpdir/$progname.so"] {
158 unsupported $testname
162 # Run the resulting program
163 send_log "$tmpdir/$progname >$tmpdir/$progname.out\n"
164 verbose "$tmpdir/$progname >$tmpdir/$progname.out"
165 catch "exec $tmpdir/$progname >$tmpdir/$progname.out" exec_output
166 if ![string match "" $exec_output] then {
167 send_log "$exec_output\n"
168 verbose "$exec_output"
173 send_log "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat\n"
174 verbose "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat"
175 catch "exec diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat" exec_output
176 set exec_output [prune_warnings $exec_output]
178 if {![string match "" $exec_output]} then {
179 send_log "$exec_output\n"
180 verbose "$exec_output"
188 # Old version of GCC for MIPS default to enabling -fpic
189 # and get confused if it is used on the command line.
190 if { [istarget mips*-*-*] && ! [at_least_gcc_version 4 3] } then {
193 # Unfortunately, the gcc argument is -fpic and the cc argument is
194 # -KPIC. We have to try both.
196 send_log "$CC $picflag\n"
197 verbose "$CC $picflag"
198 catch "exec $CC $picflag" exec_output
199 send_log "$exec_output\n"
200 verbose "--" "$exec_output"
201 if { [string match "*illegal option*" $exec_output] \
202 || [string match "*option ignored*" $exec_output] \
203 || [string match "*unrecognized option*" $exec_output] \
204 || [string match "*passed to ld*" $exec_output] } {
208 verbose "Using $picflag to compile PIC code"
210 # Compile the main program.
211 if ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o] {
212 unresolved "shared (non PIC)"
215 # The shared library is composed of two files. First compile them
216 # without using -fpic. That should work on an ELF system,
217 # although it will be less efficient because the dynamic linker
218 # will need to do more relocation work. However, note that not
219 # using -fpic will cause some of the tests to return different
220 # results. Make sure that PLT is used since PLT is expected.
221 global PLT_CFLAGS NOPIE_CFLAGS
222 if { ![ld_compile "$CC $PLT_CFLAGS $NOPIE_CFLAGS $CFLAGS $SHCFLAG" $srcdir/$subdir/sh1.c $tmpdir/sh1np.o]
223 || ![ld_compile "$CC $PLT_CFLAGS $CFLAGS $SHCFLAG" $srcdir/$subdir/sh2.c $tmpdir/sh2np.o] } {
224 unresolved "shared (non PIC)"
225 } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
226 shared_test shnp "shared (nonPIC)" mainnp.o sh1np.o sh2np.o xcoff
228 # Solaris defaults to -z text.
229 setup_xfail "*-*-solaris2*"
230 setup_xfail "ia64-*-linux*"
231 setup_xfail "alpha*-*-linux*"
232 setup_xfail "powerpc64*-*-*"
233 if { ![istarget hppa*64*-*-linux*] } {
234 setup_xfail "hppa*-*-linux*"
236 if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
237 setup_xfail "sparc*-*-linux*"
239 if { [is_elf64 $tmpdir/mainnp.o] } {
240 setup_xfail "x86_64-*-linux*"
242 setup_xfail "x86_64-*-linux-gnux32"
243 setup_xfail "s390x-*-linux*"
244 if [ string match $shared_needs_pic "yes" ] {
245 setup_xfail "arm*-*-linux*"
247 setup_xfail "aarch64*-*-linux*"
248 shared_test shnp "shared (non PIC)" mainnp.o sh1np.o sh2np.o shared
250 # Test ELF shared library relocations with a non-zero load
251 # address for the library. Near as I can tell, the R_*_RELATIVE
252 # relocations for various targets are broken in the case where
253 # the load address is not zero (which is the default).
254 setup_xfail "*-*-linux*libc1"
255 setup_xfail "powerpc*-*-linux*"
256 setup_xfail "ia64-*-linux*"
257 setup_xfail "alpha*-*-linux*"
258 setup_xfail "mips*-*-linux*"
259 if { ![istarget hppa*64*-*-linux*] } {
260 setup_xfail "hppa*-*-linux*"
262 if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
263 setup_xfail "sparc*-*-linux*"
265 if { [is_elf64 $tmpdir/mainnp.o] } {
266 setup_xfail "x86_64-*-linux*"
268 setup_xfail "x86_64-*-linux-gnux32"
269 setup_xfail "s390x-*-linux*"
270 if [ string match $shared_needs_pic "yes" ] {
271 setup_xfail "arm*-*-linux*"
273 setup_xfail "aarch64*-*-linux*"
274 # Solaris defaults to -z text.
275 setup_xfail "*-*-solaris2*"
276 shared_test shnp "shared (non PIC, load offset)" \
277 mainnp.o sh1np.o sh2np.o shared \
278 "-Wl,-T,$srcdir/$subdir/elf-offset.ld,--hash-style=sysv"
281 # Now compile the code using -fpic.
283 if { ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o]
284 || ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh2.c $tmpdir/sh2p.o] } {
287 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
288 shared_test shp "shared" mainnp.o sh1p.o sh2p.o xcoff
290 shared_test shp "shared" mainnp.o sh1p.o sh2p.o shared
291 ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
292 ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
293 shared_test shp "shared -Bsymbolic" mainnp.o sh1p.o sh2p.o symbolic "-Bsymbolic"
294 ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
295 ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
300 # Now do the same tests again, but this time compile main.c PIC.
301 if ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/main.c $tmpdir/mainp.o] {
302 unresolved "shared (PIC main, non PIC so)"
303 unresolved "shared (PIC main)"
305 if { [file exists $tmpdir/sh1np.o ] && [ file exists $tmpdir/sh2np.o ] } {
306 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
307 shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o xcoff
309 # Solaris defaults to -z text.
310 setup_xfail "*-*-solaris2*"
311 setup_xfail "ia64-*-linux*"
312 setup_xfail "alpha*-*-linux*"
313 setup_xfail "powerpc64*-*-*"
314 if { ![istarget hppa*64*-*-linux*] } {
315 setup_xfail "hppa*-*-linux*"
317 if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainp.o] } {
318 setup_xfail "sparc*-*-linux*"
320 if { [is_elf64 $tmpdir/mainp.o] } {
321 setup_xfail "x86_64-*-linux*"
323 setup_xfail "x86_64-*-linux-gnux32"
324 setup_xfail "s390x-*-linux*"
325 if [ string match $shared_needs_pic "yes" ] {
326 setup_xfail "arm*-*-linux*"
328 setup_xfail "aarch64*-*-linux*"
329 shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o shared
332 unresolved "shared (PIC main, non PIC so)"
335 if { [file exists $tmpdir/sh1p.o ] && [ file exists $tmpdir/sh2p.o ] } {
336 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
337 shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o xcoff
339 shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o shared
342 unresolved "shared (PIC main)"
346 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
347 # Remove the temporary directory.
348 catch "exec rm -rf $tmpdir" exec_status