ld/testsuite/ld-elf/elf.exp

   1 # Expect script for various ELF tests.
   2 #   Copyright (C) 2002-2017 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
  22 # Exclude non-ELF targets.
  23
  24 if ![is_elf_format] {
  25     return
  26 }
  27
  28 set old_ldflags $LDFLAGS
  29 if { [istarget spu*-*-*] } {
  30     set LDFLAGS "$LDFLAGS --local-store 0:0"
  31 }
  32 if { [istarget alpha*-*-* ] } {
  33     # The compress1 test is written expecting 32-bit addresses; force the
  34     # executable down into the low address space to match.
  35     # ??? How can we adjust just the one testcase?
  36     set LDFLAGS "$LDFLAGS -Ttext-segment 0x1000000"
  37 }
  38
  39 if { [istarget "*-*-nacl*"] } {
  40     # The eh[1-4] cases are written to expect ELFCLASS64 layout on x86-64.
  41     # But the target default is ELFCLASS32.  So the cases explicitly use
  42     # -melf_x86_64 to select that, but NaCl needs a different emulation name.
  43     set options_regsub(ld) {-melf_x86_64 -melf_x86_64_nacl}
  44 }
  45
  46 if { [istarget "*-*-solaris*"] } {
  47     # Same for Solaris
  48     set options_regsub(ld) {-melf_x86_64 -melf_x86_64_sol2}
  49 }
  50
  51 if { [is_remote host] } then {
  52     remote_download host merge.ld
  53 }
  54
  55 if { ![istarget hppa64*-hpux*] } {
  56     run_ld_link_tests {
  57         {"Build symbol3.a"
  58             "" "" ""
  59             {symbol3.s} {} "symbol3.a"}
  60         {"Build symbol3w.a"
  61             "" "" ""
  62             {symbol3w.s} {} "symbol3w.a"}
  63     }
  64
  65     if { [check_shared_lib_support] } then {
  66         run_ld_link_tests {
  67             {"Build pr14170a.o" "" "" "" "pr14170a.s" {} "pr14170.a" }
  68         }
  69         setup_xfail "tic6x-*-*"
  70         run_ld_link_tests {
  71             {"Build shared library for pr14170"
  72                 "-shared" "" "" "pr14170b.s" {} "pr14170.so" }
  73         }
  74         # bfin does not currently support copy relocs.
  75         setup_xfail "bfin-*-*"
  76         run_ld_link_tests {
  77             {"PR ld/14170"
  78                 "--no-dynamic-linker tmpdir/pr14170a.o tmpdir/pr14170.so" "" "" "pr14170c.s"
  79                 { } "pr14170" }
  80         }
  81     }
  82 }
  83
  84 # Only run these tests on targets that support creating shared libraries.
  85 if { [check_shared_lib_support] } then {
  86     # This target requires extra GAS options when building non-PIC code
  87     # for linking with shared libraries.
  88     set AFLAGS_NONPIC ""
  89     if [istarget "mips*-*-*"] {
  90         append AFLAGS_NONPIC " -call_nonpic"
  91     }
  92
  93     # Run a test to check linking a shared library with a broken linker
  94     # script that accidentally marks dynamic sections as notes.  The
  95     # resulting executable is not expected to work, but the linker
  96     # should not seg-fault whilst creating the binary.
  97     setup_xfail "tic6x-*-*"
  98     run_ld_link_tests {
  99         {"Build shared library for next test"
 100             "-shared" "" "" "note-3.s" {} "note-3.so" }
 101         {"Link using broken linker script"
 102             "--script note-3.t tmpdir/note-3.so" "" "" ""
 103             { { ld "note-3.l" } }
 104             "a.out" }
 105     }
 106     setup_xfail "tic6x-*-*"
 107     run_ld_link_tests {
 108         {"Build pr17068.so"
 109             "-shared" "" ""
 110             {pr17068d.s} {} "pr17068.so"}
 111         {"Build pr17068a.a"
 112             "" "" ""
 113             {pr17068a.s pr17068c.s pr17068ez.s} {} "pr17068a.a"}
 114         {"Build pr17068b.a"
 115             "" "" ""
 116             {pr17068b.s pr17068e.s} {} "pr17068b.a"}
 117     }
 118     # bfin does not currently support copy relocs.
 119     setup_xfail "bfin-*-*"
 120     run_ld_link_tests {
 121         {"pr17068 link --as-needed lib in group"
 122             "--as-needed --no-dynamic-linker" "--start-group tmpdir/pr17068a.a tmpdir/pr17068.so tmpdir/pr17068b.a --end-group" ""
 123             {start.s pr17068.s} {} "pr17068"}
 124     }
 125     # xfail on tic6x due to non-PIC/non-PID warnings
 126     setup_xfail "tic6x-*-*"
 127     # Fails on MIPS because ABI trickery means that a NULL reloc is also emitted.
 128     setup_xfail "mips*-*-*"
 129     # Fails on bfin because relocations are not created.
 130     setup_xfail "bfin-*-*"
 131     run_ld_link_tests {
 132         {"-Bsymbolic-functions"
 133             "-shared -Bsymbolic-functions" "" ""
 134             {symbolic-func.s} {{readelf {-r --wide} symbolic-func.r}}
 135             "symbolic-func.so"}
 136     }
 137     # xfail on tic6x due to non-PIC/non-PID warnings
 138     setup_xfail "tic6x-*-*"
 139     run_ld_link_tests {
 140         {"Build pr20995.so"
 141             "-shared" "" ""
 142             {pr20995b.s} {} "pr20995.so"}
 143     }
 144     setup_xfail "tic6x-*-*"
 145     # xfail on arm*-*-eabi*.  The list can be enlarged to those targets that
 146     # don't support GNU_RELRO.  For more details, please see discussions at:
 147     #   https://sourceware.org/ml/binutils/2017-01/msg00441.html
 148     setup_xfail "arm*-*-eabi*"
 149     run_ld_link_tests {
 150         {"Build pr20995-2.so"
 151             "-shared -z relro" "" ""
 152             {pr20995c.s} {{readelf {-l --wide} pr20995-2so.r}} "pr20995-2.so"}
 153     }
 154     # These targets don't copy dynamic variables into .bss.
 155     setup_xfail "alpha-*-*" "bfin-*-*" "ia64-*-*" "xtensa-*-*"
 156     run_ld_link_tests [list \
 157         [list \
 158             "pr20995" \
 159             "" "tmpdir/pr20995.so" "$AFLAGS_NONPIC" \
 160             {pr20995a.s} {{readelf {-S --wide} pr20995.r}} "pr20995"]]
 161     # xfail on arm*-*-eabi* is particularly because of no support of GNU_RELRO.
 162     # Please see the link above for details.
 163     setup_xfail "alpha-*-*" "bfin-*-*" "ia64-*-*" "xtensa-*-*" "arm*-*-eabi*"
 164     run_ld_link_tests [list \
 165         [list \
 166             "pr20995-2" \
 167             "" "tmpdir/pr20995-2.so" "$AFLAGS_NONPIC" \
 168             {pr20995a.s} {{readelf {-S --wide} pr20995.r}} "pr20995-2"]]
 169 }
 170
 171 set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
 172 foreach t $test_list {
 173     # We need to strip the ".d", but can leave the dirname.
 174     verbose [file rootname $t]
 175     run_dump_test [file rootname $t]
 176 }
 177
 178 # Targets using the generic linker backend don't support generating
 179 # an import library.
 180 set xfail_implib ""
 181 if [is_generic_elf] {
 182     set xfail_implib "*-*-*"
 183 }
 184
 185 # Check that the --out-implib option work correctly.
 186 run_ld_link_tests {
 187     {"Generate empty import library"
 188         "--out-implib=tmpdir/implib.lib" ""
 189         "--defsym NO_GLOBAL=1"
 190         {implib.s}
 191         {{ld empty-implib.out}}
 192         "implib"}
 193     {"Generate import library"
 194         "--out-implib=tmpdir/implib.lib" ""
 195         ""
 196         {implib.s}
 197         {{readelf {-s tmpdir/implib.lib} implib.rd}}
 198         "implib"}
 199 } $xfail_implib
 200
 201 if { [istarget *-*-linux*]
 202      || [istarget *-*-nacl*]
 203      || [istarget *-*-gnu*] } {
 204     run_ld_link_tests {
 205         {"Weak symbols in dynamic objects 1 (support)"
 206             "-shared" "" "" {weak-dyn-1a.s}
 207             {}
 208             "libweakdyn1a.so"}
 209         {"Weak symbols in dynamic objects 1 (main test)"
 210             "-shared tmpdir/libweakdyn1a.so -Tweak-dyn-1.ld" "" "" {weak-dyn-1b.s}
 211             {{readelf {--relocs --wide} weak-dyn-1.rd}}
 212             "libweakdyn1b.so"}
 213     }
 214 }
 215
 216 #v850 gas complains about .tbss.var section attributes.
 217 if { [check_gc_sections_available] && ![istarget "v850-*-*"] } {
 218     run_ld_link_tests {
 219         {"--gc-sections on tls variable"
 220             "--gc-section" "" "" {tls_gc.s} {} "tls_gc"}
 221     }
 222 }
 223
 224 if { [istarget *-*-*linux*]
 225      || [istarget *-*-nacl*]
 226      || [istarget *-*-gnu*] } {
 227     run_ld_link_tests {
 228         {"stack exec" "-z execstack" "" "" {stack.s}
 229             {{readelf {-Wl} stack-exec.rd}} "stack-exec.exe"}
 230         {"stack size" "-z stack-size=0x123400" "" "" {stack.s}
 231             {{readelf {-Wl} stack-size.rd}} "stack-size.exe"}
 232     }
 233 }
 234
 235 set LDFLAGS $old_ldflags
 236
 237 # Check to see if the C compiler works
 238 if { [which $CC] == 0 } {
 239     return
 240 }
 241
 242 if [check_gc_sections_available] {
 243     run_cc_link_tests {
 244         {"PR ld/13195" "-Wl,--gc-sections" ""
 245          {pr13195.c} {} "pr13195"}
 246     }
 247 }
 248
 249 set array_tests {
 250     {"preinit array" "" ""
 251         {preinit.c} "preinit" "preinit.out"}
 252     {"init array" "" ""
 253         {init.c} "init" "init.out"}
 254     {"fini array" "" ""
 255         {fini.c} "fini" "fini.out"}
 256     {"init array mixed" "" ""
 257         {init-mixed.c} "init-mixed" "init-mixed.out" "-I."}
 258 }
 259 set array_tests_pie {
 260     {"PIE preinit array" "-pie" ""
 261         {preinit.c} "preinit" "preinit.out" "-fPIE"}
 262     {"PIE init array" "-pie" ""
 263         {init.c} "init" "init.out" "-fPIE"}
 264     {"PIE fini array" "-pie" ""
 265         {fini.c} "fini" "fini.out" "-fPIE"}
 266     {"PIE init array mixed" "-pie" ""
 267         {init-mixed.c} "init-mixed" "init-mixed.out" "-I. -fPIE"}
 268     {"PIE PR ld/14525" "-pie" ""
 269         {pr14525.c} "pr14525" "pr14525.out" "-fPIE"}
 270 }
 271 set array_tests_static {
 272     {"static preinit array" "-static" ""
 273         {preinit.c} "preinit" "preinit.out"}
 274     {"static init array" "-static" ""
 275         {init.c} "init" "init.out"}
 276     {"static fini array" "-static" ""
 277         {fini.c} "fini" "fini.out"}
 278     {"static init array mixed" "-static" ""
 279         {init-mixed.c} "init-mixed" "init-mixed.out" "-I."}
 280 }
 281
 282 # NetBSD ELF systems do not currently support the .*_array sections.
 283 set xfails "*-*-netbsdelf*"
 284 run_ld_link_exec_tests $array_tests $xfails
 285
 286 if { [istarget *-*-linux*]
 287      || [istarget *-*-nacl*]
 288      || [istarget *-*-gnu*] } {
 289     run_ld_link_exec_tests $array_tests_pie $xfails
 290 }
 291
 292 # <http://www.gnu.org/software/hurd/open_issues/binutils.html#static>
 293 # Be cautious to not XFAIL for *-*-linux-gnu*, *-*-kfreebsd-gnu*, etc.
 294 switch -regexp $target_triplet {
 295     ^\[^-\]*-\[^-\]*-gnu.*$ {
 296         set xfails "*-*-*"
 297     }
 298 }
 299 run_ld_link_exec_tests $array_tests_static $xfails
 300
 301 catch "exec rm -f tmpdir/preinit tmpdir/init tmpdir/fini tmpdir/init-mixed" status