1 # Expect script for ld-shared tests 2 # Copyright (C) 1994-2014 Free Software Foundation, Inc. 3 # 4 # This file is part of the GNU Binutils. 5 # 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. 10 # 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. 15 # 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, 19 # MA 02110-1301, USA. 20 # 21 # Written by Ian Lance Taylor (ian (at) cygnus.com) 22 # 23 24 # Make sure that ld can generate ELF shared libraries. 25 # Note that linking against ELF shared libraries is tested by the 26 # bootstrap test. 27 28 # This test can only be run if ld generates native executables. 29 if ![isnative] then {return} 30 31 # This test can only be run on a couple of ELF platforms. 32 # Square bracket expressions seem to confuse istarget. 33 if { ![istarget hppa*64*-*-hpux*] \ 34 && ![istarget hppa*-*-linux*] \ 35 && ![istarget i?86-*-sysv4*] \ 36 && ![istarget i?86-*-unixware] \ 37 && ![istarget i?86-*-elf*] \ 38 && ![istarget i?86-*-linux*] \ 39 && ![istarget i?86-*-gnu*] \ 40 && ![istarget *-*-nacl*] \ 41 && ![istarget ia64-*-elf*] \ 42 && ![istarget ia64-*-linux*] \ 43 && ![istarget m68k-*-linux*] \ 44 && ![istarget mips*-*-irix5*] \ 45 && ![istarget mips*-*-linux*] \ 46 && ![istarget powerpc*-*-elf*] \ 47 && ![istarget powerpc*-*-linux*] \ 48 && ![istarget powerpc*-*-sysv4*] \ 49 && ![istarget sparc*-*-elf] \ 50 && ![istarget sparc*-*-solaris2*] \ 51 && ![istarget sparc*-*-sunos4*] \ 52 && ![istarget sparc*-*-linux*] \ 53 && ![istarget arm*-*-linux*] \ 54 && ![istarget alpha*-*-linux*] \ 55 && ![istarget rs6000*-*-aix*] \ 56 && ![istarget powerpc*-*-aix*] \ 57 && ![istarget s390*-*-linux*] \ 58 && ![istarget aarch64*-*-linux*] \ 59 && ![istarget x86_64-*-linux*] } { 60 return 61 } 62 63 if { [istarget *-*-linux*aout*] \ 64 || [istarget *-*-linux*oldld*] } { 65 return 66 } 67 68 set tmpdir tmpdir 69 set SHCFLAG "" 70 set shared_needs_pic "no" 71 72 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { 73 74 # AIX shared libraries do not seem to support useful features, 75 # like overriding the shared library function or letting the 76 # shared library refer to objects defined in the main program. We 77 # avoid testing those features. 78 set SHCFLAG "-DXCOFF_TEST" 79 80 # The AIX 3.2.5 loader appears to randomly fail when loading 81 # shared libraries from NSF mounted partitions, so we avoid any 82 # potential problems by using a local directory. 83 catch {exec /bin/sh -c "echo $$"} pid 84 set tmpdir /usr/tmp/ld.$pid 85 catch "exec mkdir $tmpdir" exec_status 86 87 # On AIX, we need to explicitly export the symbols the shared 88 # library is going to provide, and need. 89 set file [open $tmpdir/xcoff.exp w] 90 puts $file shlibvar1 91 puts $file shlibvar2 92 puts $file shlib_shlibvar1 93 puts $file shlib_shlibvar2 94 puts $file shlib_shlibcall 95 puts $file shlib_shlibcalled 96 puts $file shlib_checkfunptr1 97 puts $file shlib_getfunptr1 98 puts $file shlib_check 99 close $file 100 } 101 102 if [istarget arm*-*-linux*] { 103 # On ARM section anchors can change the symbol pre-emptability for 104 # non-PIC shared libraries, causing these tests to fail. Turn section 105 # anchors off. 106 set SHCFLAG "-fno-section-anchors" 107 108 # On targets that have MOVW the compiler will emit relocations which 109 # the linker doesn't support when compiling -shared without -fpic. The 110 # test to find out whether we want to XFAIL the non-PIC tests requires 111 # a compile - so we pre-calculate it here. We also note that this can 112 # only affect arm*-*-*eabi* targets as the old ABI doesn't support v7. 113 if [istarget arm*-*-*eabi*] { 114 set file [open $tmpdir/movw-detect.c w] 115 puts $file "void foo(void) { __asm (\"movw r0, #0\"); }" 116 close $file 117 if [run_host_cmd_yesno "$CC" "$CFLAGS -c $tmpdir/movw-detect.c -o $tmpdir/movw-detect.o"] { 118 set shared_needs_pic "yes" 119 } 120 } 121 } 122 123 # The test procedure. 124 proc shared_test { progname testname main sh1 sh2 dat args } { 125 global CC 126 global srcdir 127 global subdir 128 global exec_output 129 global host_triplet 130 global tmpdir 131 132 if [llength $args] { set shldflags [lindex $args 0] } else { set shldflags "" } 133 134 # Build the shared library. 135 # On AIX, we need to use an export file. 136 set shared -shared 137 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { 138 set shared "-bM:SRE -bE:$tmpdir/xcoff.exp" 139 } 140 if {![ld_simple_link $CC $tmpdir/$progname.so "$shared $shldflags $tmpdir/$sh1 $tmpdir/$sh2"]} { 141 fail "$testname" 142 return 143 } 144 145 # Link against the shared library. Use -rpath so that the 146 # dynamic linker can locate the shared library at runtime. 147 # On AIX, we must include /lib in -rpath, as otherwise the loader 148 # can not find -lc. 149 set rpath $tmpdir 150 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { 151 set rpath /lib:$tmpdir 152 } 153 if ![ld_simple_link $CC $tmpdir/$progname "-Wl,-rpath,$rpath $tmpdir/$main $tmpdir/$progname.so"] { 154 fail "$testname" 155 return 156 } 157 158 # Run the resulting program 159 send_log "$tmpdir/$progname >$tmpdir/$progname.out\n" 160 verbose "$tmpdir/$progname >$tmpdir/$progname.out" 161 catch "exec $tmpdir/$progname >$tmpdir/$progname.out" exec_output 162 if ![string match "" $exec_output] then { 163 send_log "$exec_output\n" 164 verbose "$exec_output" 165 fail "$testname" 166 return 167 } 168 169 send_log "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat\n" 170 verbose "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat" 171 catch "exec diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat" exec_output 172 set exec_output [prune_warnings $exec_output] 173 174 if {![string match "" $exec_output]} then { 175 send_log "$exec_output\n" 176 verbose "$exec_output" 177 fail "$testname" 178 return 179 } 180 181 pass "$testname" 182 } 183 184 # Old version of GCC for MIPS default to enabling -fpic 185 # and get confused if it is used on the command line. 186 if { [istarget mips*-*-*] && ! [at_least_gcc_version 4 3] } then { 187 set picflag "" 188 } else { 189 # Unfortunately, the gcc argument is -fpic and the cc argument is 190 # -KPIC. We have to try both. 191 set picflag "-fpic" 192 send_log "$CC $picflag\n" 193 verbose "$CC $picflag" 194 catch "exec $CC $picflag" exec_output 195 send_log "$exec_output\n" 196 verbose "--" "$exec_output" 197 if { [string match "*illegal option*" $exec_output] \ 198 || [string match "*option ignored*" $exec_output] \ 199 || [string match "*unrecognized option*" $exec_output] \ 200 || [string match "*passed to ld*" $exec_output] } { 201 if [istarget *-*-sunos4*] { 202 set picflag "-pic" 203 } else { 204 set picflag "-KPIC" 205 } 206 } 207 } 208 verbose "Using $picflag to compile PIC code" 209 210 # Compile the main program. 211 if ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o] { 212 unresolved "shared (non PIC)" 213 unresolved "shared" 214 } else { 215 # The shared library is composed of two files. First compile them 216 # without using -fpic. That should work on an ELF system, 217 # although it will be less efficient because the dynamic linker 218 # will need to do more relocation work. However, note that not 219 # using -fpic will cause some of the tests to return different 220 # results. 221 if { ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/sh1.c $tmpdir/sh1np.o] 222 || ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/sh2.c $tmpdir/sh2np.o] } { 223 unresolved "shared (non PIC)" 224 } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { 225 shared_test shnp "shared (nonPIC)" mainnp.o sh1np.o sh2np.o xcoff 226 } else { 227 # SunOS non PIC shared libraries don't permit some cases of 228 # overriding. 229 setup_xfail "*-*-sunos4*" 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*" 235 } 236 if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } { 237 setup_xfail "sparc*-*-linux*" 238 } 239 if { [is_elf64 $tmpdir/mainnp.o] } { 240 setup_xfail "x86_64-*-linux*" 241 } 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*" 246 } 247 setup_xfail "aarch64*-*-linux*" 248 shared_test shnp "shared (non PIC)" mainnp.o sh1np.o sh2np.o shared 249 250 # 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 "*-*-sunos4*" 255 setup_xfail "*-*-linux*libc1" 256 setup_xfail "powerpc*-*-linux*" 257 setup_xfail "ia64-*-linux*" 258 setup_xfail "alpha*-*-linux*" 259 setup_xfail "mips*-*-linux*" 260 if { ![istarget hppa*64*-*-linux*] } { 261 setup_xfail "hppa*-*-linux*" 262 } 263 if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } { 264 setup_xfail "sparc*-*-linux*" 265 } 266 if { [is_elf64 $tmpdir/mainnp.o] } { 267 setup_xfail "x86_64-*-linux*" 268 } 269 setup_xfail "x86_64-*-linux-gnux32" 270 setup_xfail "s390x-*-linux*" 271 if [ string match $shared_needs_pic "yes" ] { 272 setup_xfail "arm*-*-linux*" 273 } 274 setup_xfail "aarch64*-*-linux*" 275 shared_test shnp "shared (non PIC, load offset)" \ 276 mainnp.o sh1np.o sh2np.o shared \ 277 "-T $srcdir/$subdir/elf-offset.ld" 278 } } 279 280 # Now compile the code using -fpic. 281 282 if { ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o] 283 || ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh2.c $tmpdir/sh2p.o] } { 284 unresolved "shared" 285 } else { 286 # SunOS can not compare function pointers correctly 287 if [istarget "*-*-sunos4*"] { 288 shared_test shp "shared" mainnp.o sh1p.o sh2p.o sun4 289 } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { 290 shared_test shp "shared" mainnp.o sh1p.o sh2p.o xcoff 291 } else { 292 shared_test shp "shared" mainnp.o sh1p.o sh2p.o shared 293 ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o 294 ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o 295 shared_test shp "shared -Bsymbolic" mainnp.o sh1p.o sh2p.o symbolic "-Bsymbolic" 296 ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o 297 ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o 298 } } 299 } 300 } 301 302 # Now do the same tests again, but this time compile main.c PIC. 303 if ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/main.c $tmpdir/mainp.o] { 304 unresolved "shared (PIC main, non PIC so)" 305 unresolved "shared (PIC main)" 306 } else { 307 if { [file exists $tmpdir/sh1np.o ] && [ file exists $tmpdir/sh2np.o ] } { 308 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { 309 shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o xcoff 310 } else { 311 # SunOS non PIC shared libraries don't permit some cases of 312 # overriding. 313 setup_xfail "*-*-sunos4*" 314 setup_xfail "ia64-*-linux*" 315 setup_xfail "alpha*-*-linux*" 316 setup_xfail "powerpc64*-*-*" 317 if { ![istarget hppa*64*-*-linux*] } { 318 setup_xfail "hppa*-*-linux*" 319 } 320 if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainp.o] } { 321 setup_xfail "sparc*-*-linux*" 322 } 323 if { [is_elf64 $tmpdir/mainp.o] } { 324 setup_xfail "x86_64-*-linux*" 325 } 326 setup_xfail "x86_64-*-linux-gnux32" 327 setup_xfail "s390x-*-linux*" 328 if [ string match $shared_needs_pic "yes" ] { 329 setup_xfail "arm*-*-linux*" 330 } 331 setup_xfail "aarch64*-*-linux*" 332 shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o shared 333 } 334 } else { 335 unresolved "shared (PIC main, non PIC so)" 336 } 337 338 if { [file exists $tmpdir/sh1p.o ] && [ file exists $tmpdir/sh2p.o ] } { 339 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { 340 shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o xcoff 341 } else { 342 shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o shared 343 } 344 } else { 345 unresolved "shared (PIC main)" 346 } 347 } 348 349 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } { 350 # Remove the temporary directory. 351 catch "exec rm -rf $tmpdir" exec_status 352 } 353
