ld/testsuite/ld-shared/shared.exp

   1 # Expect script for ld-shared tests
   2 #   Copyright (C) 1994-2017 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@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 # Check to see if the C compiler works
  29 if { [which $CC] == 0 } {
  30     return
  31 }
  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 aarch64*-*-linux*] \
  61      && ![istarget x86_64-*-linux*] } {
  62     return
  63 }
  64
  65 if { [istarget *-*-linux*aout*] \
  66      || [istarget *-*-linux*oldld*] } {
  67     return
  68 }
  69
  70 set tmpdir tmpdir
  71 set SHCFLAG ""
  72 set shared_needs_pic "no"
  73
  74 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
  75
  76     # AIX shared libraries do not seem to support useful features,
  77     # like overriding the shared library function or letting the
  78     # shared library refer to objects defined in the main program.  We
  79     # avoid testing those features.
  80     set SHCFLAG "-DXCOFF_TEST"
  81
  82     # The AIX 3.2.5 loader appears to randomly fail when loading
  83     # shared libraries from NSF mounted partitions, so we avoid any
  84     # potential problems by using a local directory.
  85     catch {exec /bin/sh -c "echo $$"} pid
  86     set tmpdir /usr/tmp/ld.$pid
  87     catch "exec mkdir $tmpdir" exec_status
  88
  89     # On AIX, we need to explicitly export the symbols the shared
  90     # library is going to provide, and need.
  91     set file [open $tmpdir/xcoff.exp w]
  92     puts $file shlibvar1
  93     puts $file shlibvar2
  94     puts $file shlib_shlibvar1
  95     puts $file shlib_shlibvar2
  96     puts $file shlib_shlibcall
  97     puts $file shlib_shlibcalled
  98     puts $file shlib_checkfunptr1
  99     puts $file shlib_getfunptr1
 100     puts $file shlib_check
 101     close $file
 102 }
 103
 104 if [istarget arm*-*-linux*] {
 105     # On ARM section anchors can change the symbol pre-emptability for
 106     # non-PIC shared libraries, causing these tests to fail.  Turn section
 107     # anchors off.
 108     set SHCFLAG "-fno-section-anchors"
 109
 110     # On targets that have MOVW the compiler will emit relocations which
 111     # the linker doesn't support when compiling -shared without -fpic.  The
 112     # test to find out whether we want to XFAIL the non-PIC tests requires
 113     # a compile - so we pre-calculate it here.  We also note that this can
 114     # only affect arm*-*-*eabi* targets as the old ABI doesn't support v7.
 115     if [istarget arm*-*-*eabi*] {
 116         set file [open $tmpdir/movw-detect.c w]
 117         puts $file "void foo(void) { __asm (\"movw r0, #0\"); }"
 118         close $file
 119         if [run_host_cmd_yesno "$CC" "$CFLAGS -c $tmpdir/movw-detect.c -o $tmpdir/movw-detect.o"] {
 120             set shared_needs_pic "yes"
 121         }
 122     }
 123 }
 124
 125 # The test procedure.
 126 proc shared_test { progname testname main sh1 sh2 dat args } {
 127     global CC
 128     global srcdir
 129     global subdir
 130     global exec_output
 131     global host_triplet
 132     global tmpdir
 133
 134     if [llength $args] { set shldflags [lindex $args 0] } else { set shldflags "" }
 135
 136     # Build the shared library.
 137     # On AIX, we need to use an export file.
 138     set shared -shared
 139     if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 140         set shared "-bM:SRE -bE:$tmpdir/xcoff.exp"
 141     }
 142     if {![ld_link $CC $tmpdir/$progname.so "$shared $shldflags $tmpdir/$sh1 $tmpdir/$sh2"]} {
 143         fail "$testname"
 144         return
 145     }
 146
 147     # Link against the shared library.  Use -rpath so that the
 148     # dynamic linker can locate the shared library at runtime.
 149     # On AIX, we must include /lib in -rpath, as otherwise the loader
 150     # can not find -lc.
 151     set rpath $tmpdir
 152     if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 153         set rpath /lib:$tmpdir
 154     }
 155     if ![ld_link $CC $tmpdir/$progname "-Wl,-rpath,$rpath $tmpdir/$main $tmpdir/$progname.so"] {
 156         fail "$testname"
 157         return
 158     }
 159
 160     if ![isnative] {
 161         unsupported $testname
 162         return
 163     }
 164
 165     # Run the resulting program
 166     send_log "$tmpdir/$progname >$tmpdir/$progname.out\n"
 167     verbose "$tmpdir/$progname >$tmpdir/$progname.out"
 168     catch "exec $tmpdir/$progname >$tmpdir/$progname.out" exec_output
 169     if ![string match "" $exec_output] then {
 170         send_log "$exec_output\n"
 171         verbose "$exec_output"
 172         fail "$testname"
 173         return
 174     }
 175
 176     send_log "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat\n"
 177     verbose "diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat"
 178     catch "exec diff $tmpdir/$progname.out $srcdir/$subdir/$dat.dat" exec_output
 179     set exec_output [prune_warnings $exec_output]
 180
 181     if {![string match "" $exec_output]} then {
 182         send_log "$exec_output\n"
 183         verbose "$exec_output"
 184         fail "$testname"
 185         return
 186     }
 187
 188     pass "$testname"
 189 }
 190
 191 # Old version of GCC for MIPS default to enabling -fpic
 192 # and get confused if it is used on the command line.
 193 if { [istarget mips*-*-*] && ! [at_least_gcc_version 4 3] } then {
 194     set picflag ""
 195 } else {
 196     # Unfortunately, the gcc argument is -fpic and the cc argument is
 197     # -KPIC.  We have to try both.
 198     set picflag "-fpic"
 199     send_log "$CC $picflag\n"
 200     verbose "$CC $picflag"
 201     catch "exec $CC $picflag" exec_output
 202     send_log "$exec_output\n"
 203     verbose "--" "$exec_output"
 204     if { [string match "*illegal option*" $exec_output] \
 205          || [string match "*option ignored*" $exec_output] \
 206          || [string match "*unrecognized option*" $exec_output] \
 207          || [string match "*passed to ld*" $exec_output] } {
 208         if [istarget *-*-sunos4*] {
 209             set picflag "-pic"
 210         } else {
 211             set picflag "-KPIC"
 212         }
 213     }
 214 }
 215 verbose "Using $picflag to compile PIC code"
 216
 217 # Compile the main program.
 218 if ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o] {
 219     unresolved "shared (non PIC)"
 220     unresolved "shared"
 221 } else {
 222     # The shared library is composed of two files.  First compile them
 223     # without using -fpic.  That should work on an ELF system,
 224     # although it will be less efficient because the dynamic linker
 225     # will need to do more relocation work.  However, note that not
 226     # using -fpic will cause some of the tests to return different
 227     # results.  Make sure that PLT is used since PLT is expected.
 228     global PLT_CFLAGS NOPIE_CFLAGS
 229     if { ![ld_compile "$CC $PLT_CFLAGS $NOPIE_CFLAGS $CFLAGS $SHCFLAG" $srcdir/$subdir/sh1.c $tmpdir/sh1np.o]
 230          || ![ld_compile "$CC $PLT_CFLAGS $CFLAGS $SHCFLAG" $srcdir/$subdir/sh2.c $tmpdir/sh2np.o] } {
 231         unresolved "shared (non PIC)"
 232     } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 233         shared_test shnp "shared (nonPIC)" mainnp.o sh1np.o sh2np.o xcoff
 234     } else {
 235         # SunOS non PIC shared libraries don't permit some cases of
 236         # overriding.
 237         setup_xfail "*-*-sunos4*"
 238         setup_xfail "ia64-*-linux*"
 239         setup_xfail "alpha*-*-linux*"
 240         setup_xfail "powerpc64*-*-*"
 241         if { ![istarget hppa*64*-*-linux*] } {
 242             setup_xfail "hppa*-*-linux*"
 243         }
 244         if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
 245             setup_xfail "sparc*-*-linux*"
 246         }
 247         if { [is_elf64 $tmpdir/mainnp.o] } {
 248             setup_xfail "x86_64-*-linux*"
 249         }
 250         setup_xfail "x86_64-*-linux-gnux32"
 251         setup_xfail "s390x-*-linux*"
 252         if [ string match $shared_needs_pic "yes" ] {
 253             setup_xfail "arm*-*-linux*"
 254         }
 255         setup_xfail "aarch64*-*-linux*"
 256         shared_test shnp "shared (non PIC)" mainnp.o sh1np.o sh2np.o shared
 257
 258         # Test ELF shared library relocations with a non-zero load
 259         # address for the library.  Near as I can tell, the R_*_RELATIVE
 260         # relocations for various targets are broken in the case where
 261         # the load address is not zero (which is the default).
 262         setup_xfail "*-*-sunos4*"
 263         setup_xfail "*-*-linux*libc1"
 264         setup_xfail "powerpc*-*-linux*"
 265         setup_xfail "ia64-*-linux*"
 266         setup_xfail "alpha*-*-linux*"
 267         setup_xfail "mips*-*-linux*"
 268         if { ![istarget hppa*64*-*-linux*] } {
 269             setup_xfail "hppa*-*-linux*"
 270         }
 271         if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
 272             setup_xfail "sparc*-*-linux*"
 273         }
 274         if { [is_elf64 $tmpdir/mainnp.o] } {
 275             setup_xfail "x86_64-*-linux*"
 276         }
 277         setup_xfail "x86_64-*-linux-gnux32"
 278         setup_xfail "s390x-*-linux*"
 279         if [ string match $shared_needs_pic "yes" ] {
 280             setup_xfail "arm*-*-linux*"
 281         }
 282         setup_xfail "aarch64*-*-linux*"
 283         shared_test shnp "shared (non PIC, load offset)" \
 284                 mainnp.o sh1np.o sh2np.o shared \
 285                 "-Wl,-T,$srcdir/$subdir/elf-offset.ld,--hash-style=sysv"
 286     } }
 287
 288     # Now compile the code using -fpic.
 289
 290     if { ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o]
 291          || ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh2.c $tmpdir/sh2p.o] } {
 292         unresolved "shared"
 293     } else {
 294         # SunOS can not compare function pointers correctly
 295         if [istarget "*-*-sunos4*"] {
 296             shared_test shp "shared" mainnp.o sh1p.o sh2p.o sun4
 297         } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 298             shared_test shp "shared" mainnp.o sh1p.o sh2p.o xcoff
 299         } else {
 300             shared_test shp "shared" mainnp.o sh1p.o sh2p.o shared
 301             ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
 302             ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
 303             shared_test shp "shared -Bsymbolic" mainnp.o sh1p.o sh2p.o symbolic "-Bsymbolic"
 304             ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
 305             ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
 306         } }
 307     }
 308 }
 309
 310 # Now do the same tests again, but this time compile main.c PIC.
 311 if ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/main.c $tmpdir/mainp.o] {
 312     unresolved "shared (PIC main, non PIC so)"
 313     unresolved "shared (PIC main)"
 314 } else {
 315     if { [file exists $tmpdir/sh1np.o ] && [ file exists $tmpdir/sh2np.o ] } {
 316         if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 317             shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o xcoff
 318         } else {
 319             # SunOS non PIC shared libraries don't permit some cases of
 320             # overriding.
 321             setup_xfail "*-*-sunos4*"
 322             setup_xfail "ia64-*-linux*"
 323             setup_xfail "alpha*-*-linux*"
 324             setup_xfail "powerpc64*-*-*"
 325             if { ![istarget hppa*64*-*-linux*] } {
 326                 setup_xfail "hppa*-*-linux*"
 327             }
 328             if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainp.o] } {
 329                 setup_xfail "sparc*-*-linux*"
 330             }
 331             if { [is_elf64 $tmpdir/mainp.o] } {
 332                 setup_xfail "x86_64-*-linux*"
 333             }
 334             setup_xfail "x86_64-*-linux-gnux32"
 335             setup_xfail "s390x-*-linux*"
 336             if [ string match $shared_needs_pic "yes" ] {
 337                 setup_xfail "arm*-*-linux*"
 338             }
 339             setup_xfail "aarch64*-*-linux*"
 340             shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o shared
 341         }
 342     } else {
 343         unresolved "shared (PIC main, non PIC so)"
 344     }
 345
 346     if { [file exists $tmpdir/sh1p.o ] && [ file exists $tmpdir/sh2p.o ] } {
 347         if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 348             shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o xcoff
 349         } else {
 350             shared_test shmpp "shared (PIC main)" mainp.o sh1p.o sh2p.o shared
 351         }
 352     } else {
 353         unresolved "shared (PIC main)"
 354     }
 355 }
 356
 357 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 358     # Remove the temporary directory.
 359     catch "exec rm -rf $tmpdir" exec_status
 360 }