ld/testsuite/ld-shared/shared.exp

   1 # Expect script for ld-shared tests
   2 #   Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
   3 #   2004, 2005, 2007, 2008, 2009, 2010, 2012
   4 #   Free Software Foundation, Inc.
   5 #
   6 # This file is part of the GNU Binutils.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program; if not, write to the Free Software
  20 # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21 # MA 02110-1301, USA.
  22 #
  23 # Written by Ian Lance Taylor (ian@cygnus.com)
  24 #
  25
  26 # Make sure that ld can generate ELF shared libraries.
  27 # Note that linking against ELF shared libraries is tested by the
  28 # bootstrap test.
  29
  30 # This test can only be run if ld generates native executables.
  31 if ![isnative] then {return}
  32
  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*-*-sunos4*] \
  54      && ![istarget sparc*-*-linux*] \
  55      && ![istarget arm*-*-linux*] \
  56      && ![istarget alpha*-*-linux*] \
  57      && ![istarget rs6000*-*-aix*] \
  58      && ![istarget powerpc*-*-aix*] \
  59      && ![istarget s390*-*-linux*] \
  60      && ![istarget x86_64-*-linux*] } {
  61     return
  62 }
  63
  64 if { [istarget *-*-linux*aout*] \
  65      || [istarget *-*-linux*oldld*] } {
  66     return
  67 }
  68
  69 set tmpdir tmpdir
  70 set SHCFLAG ""
  71 set shared_needs_pic "no"
  72
  73 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
  74
  75     # AIX shared libraries do not seem to support useful features,
  76     # like overriding the shared library function or letting the
  77     # shared library refer to objects defined in the main program.  We
  78     # avoid testing those features.
  79     set SHCFLAG "-DXCOFF_TEST"
  80
  81     # The AIX 3.2.5 loader appears to randomly fail when loading
  82     # shared libraries from NSF mounted partitions, so we avoid any
  83     # potential problems by using a local directory.
  84     catch {exec /bin/sh -c "echo $$"} pid
  85     set tmpdir /usr/tmp/ld.$pid
  86     catch "exec mkdir $tmpdir" exec_status
  87
  88     # On AIX, we need to explicitly export the symbols the shared
  89     # library is going to provide, and need.
  90     set file [open $tmpdir/xcoff.exp w]
  91     puts $file shlibvar1
  92     puts $file shlibvar2
  93     puts $file shlib_shlibvar1
  94     puts $file shlib_shlibvar2
  95     puts $file shlib_shlibcall
  96     puts $file shlib_shlibcalled
  97     puts $file shlib_checkfunptr1
  98     puts $file shlib_getfunptr1
  99     puts $file shlib_check
 100     close $file
 101 }
 102
 103 if [istarget arm*-*-linux*] {
 104     # On ARM section anchors can change the symbol pre-emptability for
 105     # non-PIC shared libraries, causing these tests to fail.  Turn section
 106     # anchors off.
 107     set SHCFLAG "-fno-section-anchors"
 108
 109     # On targets that have MOVW the compiler will emit relocations which
 110     # the linker doesn't support when compiling -shared without -fpic.  The
 111     # test to find out whether we want to XFAIL the non-PIC tests requires
 112     # a compile - so we pre-calculate it here.  We also note that this can
 113     # only affect arm*-*-*eabi targets as the old ABI doesn't support v7.
 114     if [istarget arm*-*-*eabi] {
 115         set file [open $tmpdir/movw-detect.c w]
 116         puts $file "void foo(void) { __asm (\"movw r0, #0\"); }"
 117         close $file
 118         if [run_host_cmd_yesno "$CC" "$CFLAGS -c $tmpdir/movw-detect.c -o $tmpdir/movw-detect.o"] {
 119             set shared_needs_pic "yes"
 120         }
 121     }
 122 }
 123
 124 # The test procedure.
 125 proc shared_test { progname testname main sh1 sh2 dat args } {
 126     global CC
 127     global srcdir
 128     global subdir
 129     global exec_output
 130     global host_triplet
 131     global tmpdir
 132
 133     if [llength $args] { set shldflags [lindex $args 0] } else { set shldflags "" }
 134
 135     # Build the shared library.
 136     # On AIX, we need to use an export file.
 137     set shared -shared
 138     if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 139         set shared "-bM:SRE -bE:$tmpdir/xcoff.exp"
 140     }
 141     if {![ld_simple_link $CC $tmpdir/$progname.so "$shared $shldflags $tmpdir/$sh1 $tmpdir/$sh2"]} {
 142         fail "$testname"
 143         return
 144     }
 145
 146     # Link against the shared library.  Use -rpath so that the
 147     # dynamic linker can locate the shared library at runtime.
 148     # On AIX, we must include /lib in -rpath, as otherwise the loader
 149     # can not find -lc.
 150     set rpath $tmpdir
 151     if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 152         set rpath /lib:$tmpdir
 153     }
 154     if ![ld_simple_link $CC $tmpdir/$progname "-Wl,-rpath,$rpath $tmpdir/$main $tmpdir/$progname.so"] {
 155         fail "$testname"
 156         return
 157     }
 158
 159     # Run the resulting program
 160     send_log "$tmpdir/$progname >$tmpdir/$progname.out\n"
 161     verbose "$tmpdir/$progname >$tmpdir/$progname.out"
 162     catch "exec $tmpdir/$progname >$tmpdir/$progname.out" exec_output
 163     if ![string match "" $exec_output] then {
 164         send_log "$exec_output\n"
 165         verbose "$exec_output"
 166         fail "$testname"
 167         return
 168     }
 169
 170     send_log "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat\n"
 171     verbose "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat"
 172     catch "exec diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat" exec_output
 173     set exec_output [prune_warnings $exec_output]
 174
 175     if {![string match "" $exec_output]} then {
 176         send_log "$exec_output\n"
 177         verbose "$exec_output"
 178         fail "$testname"
 179         return
 180     }
 181
 182     pass "$testname"
 183 }
 184
 185 # Old version of GCC for MIPS default to enabling -fpic
 186 # and get confused if it is used on the command line.
 187 if { [istarget mips*-*-*] && ! [at_least_gcc_version 4 3] } then {
 188     set picflag ""
 189 } else {
 190     # Unfortunately, the gcc argument is -fpic and the cc argument is
 191     # -KPIC.  We have to try both.
 192     set picflag "-fpic"
 193     send_log "$CC $picflag\n"
 194     verbose "$CC $picflag"
 195     catch "exec $CC $picflag" exec_output
 196     send_log "$exec_output\n"
 197     verbose "--" "$exec_output"
 198     if { [string match "*illegal option*" $exec_output] \
 199          || [string match "*option ignored*" $exec_output] \
 200          || [string match "*unrecognized option*" $exec_output] \
 201          || [string match "*passed to ld*" $exec_output] } {
 202         if [istarget *-*-sunos4*] {
 203             set picflag "-pic"
 204         } else {
 205             set picflag "-KPIC"
 206         }
 207     }
 208 }
 209 verbose "Using $picflag to compile PIC code"
 210
 211 # Compile the main program.
 212 if ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o] {
 213     unresolved "shared (non PIC)"
 214     unresolved "shared"
 215 } else {
 216     # The shared library is composed of two files.  First compile them
 217     # without using -fpic.  That should work on an ELF system,
 218     # although it will be less efficient because the dynamic linker
 219     # will need to do more relocation work.  However, note that not
 220     # using -fpic will cause some of the tests to return different
 221     # results.
 222     if { ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/sh1.c $tmpdir/sh1np.o]
 223          || ![ld_compile "$CC $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
 227     } else {
 228         # SunOS non PIC shared libraries don't permit some cases of
 229         # overriding.
 230         setup_xfail "*-*-sunos4*"
 231         setup_xfail "ia64-*-linux*"
 232         setup_xfail "alpha*-*-linux*"
 233         setup_xfail "powerpc64*-*-*"
 234         if { ![istarget hppa*64*-*-linux*] } {
 235             setup_xfail "hppa*-*-linux*"
 236         }
 237         if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
 238             setup_xfail "sparc*-*-linux*"
 239         }
 240         if { [is_elf64 $tmpdir/mainnp.o] } {
 241             setup_xfail "x86_64-*-linux*"
 242         }
 243         setup_xfail "s390x-*-linux*"
 244         if [ string match $shared_needs_pic "yes" ] {
 245             setup_xfail "arm*-*-linux*"
 246         }
 247         shared_test shnp "shared (non PIC)" mainnp.o sh1np.o sh2np.o shared
 248
 249         # Test ELF shared library relocations with a non-zero load
 250         # address for the library.  Near as I can tell, the R_*_RELATIVE
 251         # relocations for various targets are broken in the case where
 252         # the load address is not zero (which is the default).
 253         setup_xfail "*-*-sunos4*"
 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*"
 261         }
 262         if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
 263             setup_xfail "sparc*-*-linux*"
 264         }
 265         if { [is_elf64 $tmpdir/mainnp.o] } {
 266             setup_xfail "x86_64-*-linux*"
 267         }
 268         setup_xfail "s390x-*-linux*"
 269         if [ string match $shared_needs_pic "yes" ] {
 270             setup_xfail "arm*-*-linux*"
 271         }
 272         shared_test shnp "shared (non PIC, load offset)" \
 273                 mainnp.o sh1np.o sh2np.o shared \
 274                 "-T $srcdir/$subdir/elf-offset.ld"
 275     } }
 276
 277     # Now compile the code using -fpic.
 278
 279     if { ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o]
 280          || ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh2.c $tmpdir/sh2p.o] } {
 281         unresolved "shared"
 282     } else {
 283         # SunOS can not compare function pointers correctly
 284         if [istarget "*-*-sunos4*"] {
 285             shared_test shp "shared" mainnp.o sh1p.o sh2p.o sun4
 286         } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 287             shared_test shp "shared" mainnp.o sh1p.o sh2p.o xcoff
 288         } else {
 289             shared_test shp "shared" mainnp.o sh1p.o sh2p.o shared
 290             ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
 291             ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
 292             shared_test shp "shared -Bsymbolic" mainnp.o sh1p.o sh2p.o symbolic "-Bsymbolic"
 293             ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
 294             ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
 295         } }
 296     }
 297 }
 298
 299 # Now do the same tests again, but this time compile main.c PIC.
 300 if ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/main.c $tmpdir/mainp.o] {
 301     unresolved "shared (PIC main, non PIC so)"
 302     unresolved "shared (PIC main)"
 303 } else {
 304     if { [file exists $tmpdir/sh1np.o ] && [ file exists $tmpdir/sh2np.o ] } {
 305         if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 306             shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o xcoff
 307         } else {
 308             # SunOS non PIC shared libraries don't permit some cases of
 309             # overriding.
 310             setup_xfail "*-*-sunos4*"
 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*"
 316             }
 317             if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainp.o] } {
 318                 setup_xfail "sparc*-*-linux*"
 319             }
 320             if { [is_elf64 $tmpdir/mainp.o] } {
 321                 setup_xfail "x86_64-*-linux*"
 322             }
 323             setup_xfail "s390x-*-linux*"
 324             if [ string match $shared_needs_pic "yes" ] {
 325                 setup_xfail "arm*-*-linux*"
 326             }
 327             shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o shared
 328         }
 329     } else {
 330         unresolved "shared (PIC main, non PIC so)"
 331     }
 332
 333     if { [file exists $tmpdir/sh1p.o ] && [ file exists $tmpdir/sh2p.o ] } {
 334         if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 335             shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o xcoff
 336         } else {
 337             shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o shared
 338         }
 339     } else {
 340         unresolved "shared (PIC main)"
 341     }
 342 }
 343
 344 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 345     # Remove the temporary directory.
 346     catch "exec rm -rf $tmpdir" exec_status
 347 }