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
   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 ia64-*-elf*] \
  43      && ![istarget ia64-*-linux*] \
  44      && ![istarget m68k-*-linux*] \
  45      && ![istarget mips*-*-irix5*] \
  46      && ![istarget mips*-*-linux*] \
  47      && ![istarget powerpc*-*-elf*] \
  48      && ![istarget powerpc*-*-linux*] \
  49      && ![istarget powerpc*-*-sysv4*] \
  50      && ![istarget sparc*-*-elf] \
  51      && ![istarget sparc*-*-solaris2*] \
  52      && ![istarget sparc*-*-sunos4*] \
  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 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 "s390x-*-linux*"
 243         if [ string match $shared_needs_pic "yes" ] {
 244             setup_xfail "arm*-*-linux*"
 245         }
 246         shared_test shnp "shared (non PIC)" mainnp.o sh1np.o sh2np.o shared
 247
 248         # Test ELF shared library relocations with a non-zero load
 249         # address for the library.  Near as I can tell, the R_*_RELATIVE
 250         # relocations for various targets are broken in the case where
 251         # the load address is not zero (which is the default).
 252         setup_xfail "*-*-sunos4*"
 253         setup_xfail "*-*-linux*libc1"
 254         setup_xfail "powerpc*-*-linux*"
 255         setup_xfail "ia64-*-linux*"
 256         setup_xfail "alpha*-*-linux*"
 257         setup_xfail "mips*-*-linux*"
 258         if { ![istarget hppa*64*-*-linux*] } {
 259             setup_xfail "hppa*-*-linux*"
 260         }
 261         if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
 262             setup_xfail "sparc*-*-linux*"
 263         }
 264         if { [is_elf64 $tmpdir/mainnp.o] } {
 265             setup_xfail "x86_64-*-linux*"
 266         }
 267         setup_xfail "s390x-*-linux*"
 268         if [ string match $shared_needs_pic "yes" ] {
 269             setup_xfail "arm*-*-linux*"
 270         }
 271         shared_test shnp "shared (non PIC, load offset)" \
 272                 mainnp.o sh1np.o sh2np.o shared \
 273                 "-T $srcdir/$subdir/elf-offset.ld"
 274     } }
 275
 276     # Now compile the code using -fpic.
 277
 278     if { ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o]
 279          || ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh2.c $tmpdir/sh2p.o] } {
 280         unresolved "shared"
 281     } else {
 282         # SunOS can not compare function pointers correctly
 283         if [istarget "*-*-sunos4*"] {
 284             shared_test shp "shared" mainnp.o sh1p.o sh2p.o sun4
 285         } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 286             shared_test shp "shared" mainnp.o sh1p.o sh2p.o xcoff
 287         } else {
 288             shared_test shp "shared" mainnp.o sh1p.o sh2p.o shared
 289             ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
 290             ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
 291             shared_test shp "shared -Bsymbolic" mainnp.o sh1p.o sh2p.o symbolic "-Bsymbolic"
 292             ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
 293             ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
 294         } }
 295     }
 296 }
 297
 298 # Now do the same tests again, but this time compile main.c PIC.
 299 if ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/main.c $tmpdir/mainp.o] {
 300     unresolved "shared (PIC main, non PIC so)"
 301     unresolved "shared (PIC main)"
 302 } else {
 303     if { [file exists $tmpdir/sh1np.o ] && [ file exists $tmpdir/sh2np.o ] } {
 304         if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 305             shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o xcoff
 306         } else {
 307             # SunOS non PIC shared libraries don't permit some cases of
 308             # overriding.
 309             setup_xfail "*-*-sunos4*"
 310             setup_xfail "ia64-*-linux*"
 311             setup_xfail "alpha*-*-linux*"
 312             setup_xfail "powerpc64*-*-*"
 313             if { ![istarget hppa*64*-*-linux*] } {
 314                 setup_xfail "hppa*-*-linux*"
 315             }
 316             if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainp.o] } {
 317                 setup_xfail "sparc*-*-linux*"
 318             }
 319             if { [is_elf64 $tmpdir/mainp.o] } {
 320                 setup_xfail "x86_64-*-linux*"
 321             }
 322             setup_xfail "s390x-*-linux*"
 323             if [ string match $shared_needs_pic "yes" ] {
 324                 setup_xfail "arm*-*-linux*"
 325             }
 326             shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o shared
 327         }
 328     } else {
 329         unresolved "shared (PIC main, non PIC so)"
 330     }
 331
 332     if { [file exists $tmpdir/sh1p.o ] && [ file exists $tmpdir/sh2p.o ] } {
 333         if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 334             shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o xcoff
 335         } else {
 336             shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o shared
 337         }
 338     } else {
 339         unresolved "shared (PIC main)"
 340     }
 341 }
 342
 343 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 344     # Remove the temporary directory.
 345     catch "exec rm -rf $tmpdir" exec_status
 346 }