ld/testsuite/ld-shared/shared.exp

   1 # Expect script for ld-shared tests
   2 #   Copyright (C) 1994-2020 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 { ![check_compiler_available] } {
  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*-*-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*] } {
  61     return
  62 }
  63
  64 set tmpdir tmpdir
  65 set SHCFLAG ""
  66 set shared_needs_pic "no"
  67
  68 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
  69
  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"
  75
  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
  82
  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]
  86     puts $file shlibvar1
  87     puts $file shlibvar2
  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
  95     close $file
  96 }
  97
  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
 101     # anchors off.
 102     set SHCFLAG "-fno-section-anchors"
 103
 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\"); }"
 112         close $file
 113         if [run_host_cmd_yesno "$CC" "$CFLAGS -c $tmpdir/movw-detect.c -o $tmpdir/movw-detect.o"] {
 114             set shared_needs_pic "yes"
 115         }
 116     }
 117 }
 118
 119 # The test procedure.
 120 proc shared_test { progname testname main sh1 sh2 dat args } {
 121     global CC
 122     global srcdir
 123     global subdir
 124     global exec_output
 125     global host_triplet
 126     global tmpdir
 127
 128     if [llength $args] { set shldflags [lindex $args 0] } else { set shldflags "" }
 129
 130     # Build the shared library.
 131     # On AIX, we need to use an export file.
 132     set shared -shared
 133     if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 134         set shared "-bM:SRE -bE:$tmpdir/xcoff.exp"
 135     }
 136     if {![ld_link $CC $tmpdir/$progname.so "$shared $shldflags $tmpdir/$sh1 $tmpdir/$sh2"]} {
 137         fail "$testname"
 138         return
 139     }
 140
 141     # Link against the shared library.  Use -rpath so that the
 142     # dynamic linker can locate the shared library at runtime.
 143     # On AIX, we must include /lib in -rpath, as otherwise the loader
 144     # can not find -lc.
 145     set rpath $tmpdir
 146     if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 147         set rpath /lib:$tmpdir
 148     }
 149     if ![ld_link $CC $tmpdir/$progname "-Wl,-rpath,$rpath $tmpdir/$main $tmpdir/$progname.so"] {
 150         fail "$testname"
 151         return
 152     }
 153
 154     if ![isnative] {
 155         unsupported $testname
 156         return
 157     }
 158
 159     # Run the resulting program
 160     send_log "$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         set picflag "-KPIC"
 203     }
 204 }
 205 verbose "Using $picflag to compile PIC code"
 206
 207 # Compile the main program.
 208 if ![ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o] {
 209     unresolved "shared (non PIC)"
 210     unresolved "shared"
 211 } else {
 212     # The shared library is composed of two files.  First compile them
 213     # without using -fpic.  That should work on an ELF system,
 214     # although it will be less efficient because the dynamic linker
 215     # will need to do more relocation work.  However, note that not
 216     # using -fpic will cause some of the tests to return different
 217     # results.  Make sure that PLT is used since PLT is expected.
 218     global PLT_CFLAGS NOPIE_CFLAGS
 219     if { ![ld_compile "$CC $PLT_CFLAGS $NOPIE_CFLAGS $CFLAGS $SHCFLAG" $srcdir/$subdir/sh1.c $tmpdir/sh1np.o]
 220          || ![ld_compile "$CC $PLT_CFLAGS $CFLAGS $SHCFLAG" $srcdir/$subdir/sh2.c $tmpdir/sh2np.o] } {
 221         unresolved "shared (non PIC)"
 222     } else { if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 223         shared_test shnp "shared (nonPIC)" mainnp.o sh1np.o sh2np.o xcoff
 224     } else {
 225         # Solaris defaults to -z text.
 226         setup_xfail "*-*-solaris2*"
 227         setup_xfail "ia64-*-linux*"
 228         setup_xfail "alpha*-*-linux*"
 229         setup_xfail "powerpc64*-*-*"
 230         if { ![istarget hppa*64*-*-linux*] } {
 231             setup_xfail "hppa*-*-linux*"
 232         }
 233         if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
 234             setup_xfail "sparc*-*-linux*"
 235         }
 236         if { [is_elf64 $tmpdir/mainnp.o] } {
 237             setup_xfail "x86_64-*-linux*"
 238         }
 239         setup_xfail "x86_64-*-linux-gnux32"
 240         setup_xfail "s390x-*-linux*"
 241         if [ string match $shared_needs_pic "yes" ] {
 242             setup_xfail "arm*-*-linux*"
 243         }
 244         setup_xfail "aarch64*-*-linux*"
 245         shared_test shnp "shared (non PIC)" mainnp.o sh1np.o sh2np.o shared
 246
 247         # Test ELF shared library relocations with a non-zero load
 248         # address for the library.  Near as I can tell, the R_*_RELATIVE
 249         # relocations for various targets are broken in the case where
 250         # the load address is not zero (which is the default).
 251         setup_xfail "*-*-linux*libc1"
 252         setup_xfail "powerpc*-*-linux*"
 253         setup_xfail "ia64-*-linux*"
 254         setup_xfail "alpha*-*-linux*"
 255         setup_xfail "mips*-*-linux*"
 256         if { ![istarget hppa*64*-*-linux*] } {
 257             setup_xfail "hppa*-*-linux*"
 258         }
 259         if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainnp.o] } {
 260             setup_xfail "sparc*-*-linux*"
 261         }
 262         if { [is_elf64 $tmpdir/mainnp.o] } {
 263             setup_xfail "x86_64-*-linux*"
 264         }
 265         setup_xfail "x86_64-*-linux-gnux32"
 266         setup_xfail "s390x-*-linux*"
 267         if [ string match $shared_needs_pic "yes" ] {
 268             setup_xfail "arm*-*-linux*"
 269         }
 270         setup_xfail "aarch64*-*-linux*"
 271         # Solaris defaults to -z text.
 272         setup_xfail "*-*-solaris2*"
 273         shared_test shnp "shared (non PIC, load offset)" \
 274                 mainnp.o sh1np.o sh2np.o shared \
 275                 "-Wl,-T,$srcdir/$subdir/elf-offset.ld,--hash-style=sysv"
 276     } }
 277
 278     # Now compile the code using -fpic.
 279
 280     if { ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o]
 281          || ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh2.c $tmpdir/sh2p.o] } {
 282         unresolved "shared"
 283     } else {
 284         if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 285             shared_test shp "shared" mainnp.o sh1p.o sh2p.o xcoff
 286         } else {
 287             shared_test shp "shared" mainnp.o sh1p.o sh2p.o shared
 288             ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
 289             ld_compile "$CC $CFLAGS -DSYMBOLIC_TEST -DXCOFF_TEST $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
 290             shared_test shp "shared -Bsymbolic" mainnp.o sh1p.o sh2p.o symbolic "-Bsymbolic"
 291             ld_compile "$CC $CFLAGS $SHCFLAG" $srcdir/$subdir/main.c $tmpdir/mainnp.o
 292             ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/sh1.c $tmpdir/sh1p.o
 293         }
 294     }
 295 }
 296
 297 # Now do the same tests again, but this time compile main.c PIC.
 298 if ![ld_compile "$CC $CFLAGS $SHCFLAG $picflag" $srcdir/$subdir/main.c $tmpdir/mainp.o] {
 299     unresolved "shared (PIC main, non PIC so)"
 300     unresolved "shared (PIC main)"
 301 } else {
 302     if { [file exists $tmpdir/sh1np.o ] && [ file exists $tmpdir/sh2np.o ] } {
 303         if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
 304             shared_test shmpnp "shared (PIC main, non PIC so)" mainp.o sh1np.o sh2np.o xcoff
 305         } else {
 306             # Solaris defaults to -z text.
 307             setup_xfail "*-*-solaris2*"
 308             setup_xfail "ia64-*-linux*"
 309             setup_xfail "alpha*-*-linux*"
 310             setup_xfail "powerpc64*-*-*"
 311             if { ![istarget hppa*64*-*-linux*] } {
 312                 setup_xfail "hppa*-*-linux*"
 313             }
 314             if { [istarget sparc*-*-linux*] && [is_elf64 $tmpdir/mainp.o] } {
 315                 setup_xfail "sparc*-*-linux*"
 316             }
 317             if { [is_elf64 $tmpdir/mainp.o] } {
 318                 setup_xfail "x86_64-*-linux*"
 319             }
 320             setup_xfail "x86_64-*-linux-gnux32"
 321             setup_xfail "s390x-*-linux*"
 322             if [ string match $shared_needs_pic "yes" ] {
 323                 setup_xfail "arm*-*-linux*"
 324             }
 325             setup_xfail "aarch64*-*-linux*"
 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 }