ld/testsuite/ld-elfweak/elfweak.exp

   1 # Expect script for ld-weak tests
   2 #   Copyright (C) 2001-2022 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 H.J. Lu (hjl@gnu.org)
  22 #            Eric Youngdale (eric@andante.jic.com)
  23 #
  24
  25 # Check to see if the C compiler works
  26 if { ![check_compiler_available] } {
  27     return
  28 }
  29
  30 # This test can only be run on a couple of ELF platforms.
  31 # Square bracket expressions seem to confuse istarget.
  32 # This is similar to the test that is used in ld-shared, BTW.
  33 if {    ![istarget alpha*-*-linux*]
  34      && ![istarget arm*-*-linux*]
  35      && ![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 sh\[34\]*-*-linux*]
  51      && ![istarget sparc*-*-elf]
  52      && ![istarget sparc*-*-solaris2*]
  53      && ![istarget sparc*-*-linux*]
  54      && ![istarget x86_64-*-linux*]
  55      && ![istarget *-*-nacl*] } {
  56     return
  57 }
  58
  59 set diff diff
  60 set tmpdir tmpdir
  61 set DOBJDUMP_FLAGS --dynamic-syms
  62 set SOBJDUMP_FLAGS --syms
  63 set shared "--shared -Wl,--no-as-needed"
  64
  65 #
  66 # objdump_symstuff
  67 #       Dump non-dynamic symbol stuff and make sure that it is sane.
  68 #
  69 proc objdump_symstuff { objdump object expectfile } {
  70     global SOBJDUMP_FLAGS
  71     global version_output
  72     global diff
  73     global tmpdir
  74
  75     if ![info exists SOBJDUMP_FLAGS] { set SOBJDUMP_FLAGS "" }
  76
  77     set cmd "$objdump $SOBJDUMP_FLAGS $object | sed -n {s/^\\(\[0-9a-f\]* *\\)\\(\[gw\]\\)\\( *\\)\\(\[FO\]\\)/\\1\\2\\4\\3/;/foo$/p} > $tmpdir/objdump.out"
  78     verbose -log $cmd
  79     catch "exec $cmd" exec_output
  80     set exec_output [prune_warnings $exec_output]
  81     if [string match "" $exec_output] then {
  82
  83 # Now do a line-by-line comparison to effectively diff the darned things
  84 # The stuff coming from the expectfile is actually a regex, so we can
  85 # skip over the actual addresses and so forth.  This is currently very
  86 # simpleminded - it expects a one-to-one correspondence in terms of line
  87 # numbers.
  88
  89         if [file exists $expectfile] then {
  90             set file_a [open $expectfile r]
  91         } else {
  92             perror "$expectfile doesn't exist"
  93             return 0
  94         }
  95
  96         if [file exists $tmpdir/objdump.out] then {
  97             set file_b [open $tmpdir/objdump.out r]
  98         } else {
  99             perror "$tmpdir/objdump.out doesn't exist"
 100             return 0
 101         }
 102
 103         verbose "# Diff'ing: $expectfile $tmpdir/objdump.out" 2
 104
 105         set eof -1
 106         set list_a {}
 107         set list_b {}
 108
 109         while { [gets $file_a line] != $eof } {
 110             if [regexp "^#.*$" $line] then {
 111                 continue
 112             } else {
 113                 lappend list_a $line
 114             }
 115         }
 116         close $file_a
 117
 118         while { [gets $file_b line] != $eof } {
 119             if [regexp {\.text.* \.[^ ]*$} $line] then {
 120                 # Discard defined powerpc64 dot-symbols
 121                 continue
 122             } else {
 123                 lappend list_b $line
 124             }
 125         }
 126         close $file_b
 127
 128         for { set i 0 } { $i < [llength $list_a] } { incr i } {
 129             set line_a [lindex $list_a $i]
 130             set line_b [lindex $list_b $i]
 131
 132             verbose "\t$expectfile: $i: $line_a" 3
 133             verbose "\t/tmp/objdump.out: $i: $line_b" 3
 134             if [regexp $line_a $line_b] then {
 135                 continue
 136             } else {
 137                 verbose -log "\t$expectfile: $i: $line_a"
 138                 verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
 139
 140                 return 0
 141             }
 142         }
 143
 144         if { [llength $list_a] != [llength $list_b] } {
 145             verbose -log "Line count"
 146             return 0
 147         }
 148         return 1
 149
 150     } else {
 151         verbose -log "$exec_output"
 152         return 0
 153     }
 154 }
 155
 156 #
 157 # objdump_dymsymstuff
 158 #       Dump dynamic symbol stuff and make sure that it is sane.
 159 #
 160 proc objdump_dynsymstuff { objdump object expectfile } {
 161     global DOBJDUMP_FLAGS
 162     global version_output
 163     global diff
 164     global tmpdir
 165
 166     if ![info exists DOBJDUMP_FLAGS] { set DOBJDUMP_FLAGS "" }
 167
 168     set cmd "$objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out"
 169     verbose -log $cmd
 170     catch "exec $cmd" exec_output
 171     set exec_output [prune_warnings $exec_output]
 172     if [string match "" $exec_output] then {
 173
 174 # Now do a line-by-line comparison to effectively diff the darned things
 175 # The stuff coming from the expectfile is actually a regex, so we can
 176 # skip over the actual addresses and so forth.  This is currently very
 177 # simpleminded - it expects a one-to-one correspondence in terms of line
 178 # numbers.
 179
 180         if [file exists $expectfile] then {
 181             set file_a [open $expectfile r]
 182         } else {
 183             warning "$expectfile doesn't exist"
 184             return 0
 185         }
 186
 187         if [file exists $tmpdir/objdump.out] then {
 188             set file_b [open $tmpdir/objdump.out r]
 189         } else {
 190             fail "$tmpdir/objdump.out doesn't exist"
 191             return 0
 192         }
 193
 194         verbose "# Diff'ing: $expectfile $tmpdir/objdump.out" 2
 195
 196         set eof -1
 197         set list_a {}
 198         set list_b {}
 199
 200         while { [gets $file_a line] != $eof } {
 201             if [regexp "^#.*$" $line] then {
 202                 continue
 203             } else {
 204                 lappend list_a $line
 205             }
 206         }
 207         close $file_a
 208
 209         while { [gets $file_b line] != $eof } {
 210             if [regexp {\.text.* \.[^ ]*$} $line] then {
 211                 # Discard defined powerpc64 dot-symbols
 212                 continue
 213             } else {
 214                 lappend list_b $line
 215             }
 216         }
 217         close $file_b
 218
 219         for { set i 0 } { $i < [llength $list_b] } { incr i } {
 220             set line_b [lindex $list_b $i]
 221
 222 # The tests are rigged so that we should never export a symbol with the
 223 # word 'hide' in it.  Thus we just search for it, and bail if we find it.
 224             if [regexp "hide" $line_b] then {
 225                 verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
 226
 227                 return 0
 228             }
 229
 230             verbose "\t$expectfile: $i: $line_b" 3
 231
 232             # We can't assume that the sort is consistent across
 233             # systems, so we must check each regexp.  When we find a
 234             # regexp, we null it out, so we don't match it twice.
 235             for { set j 0 } { $j < [llength $list_a] } { incr j } {
 236                 set line_a [lindex $list_a $j]
 237
 238                 if [regexp $line_a $line_b] then {
 239                     lreplace $list_a $j $j "CAN NOT MATCH"
 240                     break
 241                 }
 242             }
 243
 244             if { $j >= [llength $list_a] } {
 245                 verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
 246
 247                 return 0
 248             }
 249         }
 250
 251         if { [llength $list_a] != [llength $list_b] } {
 252             verbose -log "Line count"
 253             return 0
 254         }
 255         return 1
 256
 257     } else {
 258         verbose -log "$exec_output"
 259         return 0
 260     }
 261 }
 262
 263 proc build_lib {test libname objs dynsymexp} {
 264     global CC_FOR_TARGET
 265     global objdump
 266     global tmpdir
 267     global shared
 268     global srcdir
 269     global subdir
 270     global NOSANITIZE_CFLAGS
 271     global NOLTO_CFLAGS
 272
 273     set files ""
 274     foreach obj $objs {
 275       set files "$files $tmpdir/$obj"
 276     }
 277
 278     if {![ld_link "$CC_FOR_TARGET $NOSANITIZE_CFLAGS $NOLTO_CFLAGS" $tmpdir/$libname.so "$shared $files"]} {
 279         fail $test
 280         return
 281     }
 282
 283     if {![string match "" $dynsymexp]
 284         && ![objdump_dynsymstuff $objdump $tmpdir/$libname.so $srcdir/$subdir/$dynsymexp]} {
 285         fail $test
 286         return
 287     }
 288     pass $test
 289 }
 290
 291 proc build_exec { test execname objs flags dat dynsymexp symexp} {
 292     global CC_FOR_TARGET
 293     global objdump
 294     global tmpdir
 295     global srcdir
 296     global subdir
 297     global exec_output
 298     global NOSANITIZE_CFLAGS
 299     global NOLTO_CFLAGS
 300
 301     set files ""
 302     foreach obj $objs {
 303       set files "$files $tmpdir/$obj"
 304     }
 305
 306     if {![ld_link $CC_FOR_TARGET $tmpdir/$execname "$flags $NOSANITIZE_CFLAGS $NOLTO_CFLAGS $files"]} {
 307         fail "$test"
 308         return
 309     }
 310
 311     if {![string match "" $dynsymexp]} then {
 312         if {![objdump_dynsymstuff $objdump $tmpdir/$execname $srcdir/$subdir/$dynsymexp]} {
 313             fail $test
 314             return
 315         }
 316     }
 317
 318     if {![string match "" $symexp]} then {
 319         if {![objdump_symstuff $objdump $tmpdir/$execname $srcdir/$subdir/$symexp]} {
 320             fail $test
 321             return
 322         }
 323     }
 324
 325     if ![isnative] {
 326         unsupported $test
 327         return
 328     }
 329     # Run the resulting program
 330     send_log "$tmpdir/$execname >$tmpdir/$execname.out\n"
 331     verbose "$tmpdir/$execname >$tmpdir/$execname.out"
 332     catch "exec $tmpdir/$execname >$tmpdir/$execname.out" exec_output
 333     if ![string match "" $exec_output] then {
 334         send_log "$exec_output\n"
 335         verbose "$exec_output"
 336         fail $test
 337         return
 338     }
 339
 340     send_log "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat\n"
 341     verbose "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat"
 342     catch "exec diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat" exec_output
 343     set exec_output [prune_warnings $exec_output]
 344
 345     if {![string match "" $exec_output]} then {
 346         send_log "$exec_output\n"
 347         verbose "$exec_output"
 348         fail $test
 349         return
 350     }
 351
 352     pass $test
 353 }
 354
 355 # Disable LTO for these tests.
 356 set cc_cmd "$CC_FOR_TARGET"
 357 if {[check_lto_available]} {
 358    append cc_cmd " -fno-lto"
 359 }
 360
 361 # Disable all sanitizers and LTO.
 362 set saved_CFLAGS "$CFLAGS_FOR_TARGET"
 363 append CFLAGS_FOR_TARGET " $NOSANITIZE_CFLAGS $NOLTO_CFLAGS"
 364
 365 # Old version of GCC for MIPS default to enabling -fpic
 366 # and get confused if it is used on the command line.
 367 if { [istarget mips*-*-*] && ! [at_least_gcc_version 4 3] } then {
 368     set picflag ""
 369 } else {
 370     # Unfortunately, the gcc argument is -fpic and the cc argument is
 371     # -KPIC.  We have to try both.
 372     set picflag "-fpic"
 373     send_log "$CC_FOR_TARGET $picflag\n"
 374     verbose "$CC_FOR_TARGET $picflag"
 375     catch "exec $CC_FOR_TARGET $picflag" exec_output
 376     send_log "$exec_output\n"
 377     verbose "--" "$exec_output"
 378     if { [string match "*illegal option*" $exec_output]
 379          || [string match "*option ignored*" $exec_output]
 380          || [string match "*unrecognized option*" $exec_output]
 381          || [string match "*passed to ld*" $exec_output] } {
 382         set picflag "-KPIC"
 383     }
 384 }
 385 verbose "Using $picflag to compile PIC code"
 386
 387 if {![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/foo.c $tmpdir/foo.o]
 388     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/bar.c $tmpdir/bar.o]
 389     || ![ld_compile "$cc_cmd" $srcdir/$subdir/main.c $tmpdir/main.o]
 390     || ![ld_link $cc_cmd $tmpdir/libbar.so "$shared $tmpdir/bar.o"]
 391     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/foo1a.c $tmpdir/foo1a.o]
 392     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/foo1b.c $tmpdir/foo1b.o]
 393     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/bar1a.c $tmpdir/bar1a.o]
 394     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/bar1b.c $tmpdir/bar1b.o]
 395     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/bar1c.c $tmpdir/bar1c.o]
 396     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/main1.c $tmpdir/main1.o]} then {
 397     unsupported "ELF weak"
 398 } elseif {![ld_link $cc_cmd $tmpdir/libfoo1a.so "$shared $tmpdir/foo1a.o"]
 399           || ![ld_link $cc_cmd $tmpdir/libfoo1b.so "$shared $tmpdir/foo1b.o"]
 400           || ![ld_link $cc_cmd $tmpdir/libbar1a.so "$shared $tmpdir/bar1a.o $tmpdir/libfoo1a.so"]} then {
 401     fail "ELF weak"
 402 } else {
 403     build_lib "ELF DSO weak func first" libfoo "foo.o bar.o" dso.dsym
 404     build_lib "ELF DSO weak func last" libfoo "bar.o foo.o" dso.dsym
 405     build_lib "ELF DSO weak func first DSO" libfoo "foo.o libbar.so" dsow.dsym
 406     build_lib "ELF DSO weak func last DSO" libfoo "libbar.so foo.o" dsow.dsym
 407     build_exec "ELF weak func first" foo "main.o bar.o" "" strong "" strong.sym
 408     build_exec "ELF weak func last" foo "bar.o main.o" "" strong "" strong.sym
 409     build_exec "ELF weak func first DSO" foo "main.o libbar.so" "-Wl,-rpath,.,--no-as-needed" weak weak.dsym ""
 410     build_exec "ELF weak func last DSO" foo "libbar.so main.o" "-Wl,-rpath,.,--no-as-needed" weak weak.dsym ""
 411     build_lib "ELF DSO weak data first" libfoo "bar1a.o foo1a.o" dsodata.dsym
 412     build_lib "ELF DSO weak data last" libfoo "foo1a.o bar1a.o" dsodata.dsym
 413     build_lib "ELF DSO weak data first DSO" libfoo "main1.o libfoo1a.so" dsowdata.dsym
 414     build_lib "ELF DSO weak data last DSO" libfoo "libfoo1a.so main1.o" dsowdata.dsym
 415     build_lib "ELF DSO weak data first DSO common" libfoo "main1.o libfoo1b.so" dsowdata.dsym
 416     build_lib "ELF DSO weak data last DSO common" libfoo "libfoo1b.so main1.o" dsowdata.dsym
 417     build_exec "ELF weak data first" foo "main1.o bar1a.o foo1a.o" "" strongdata "" strongdata.sym
 418     build_exec "ELF weak data last" foo "foo1a.o main1.o bar1a.o" "" strongdata "" strongdata.sym
 419     build_exec "ELF weak data first common" foo "main1.o bar1a.o foo1b.o" "" strongdata "" strongcomm.sym
 420     build_exec "ELF weak data last common" foo "foo1b.o main1.o bar1a.o" "" strongdata "" strongcomm.sym
 421     build_exec "ELF weak data first DSO" foo "main1.o libbar1a.so libfoo1a.so" "-Wl,-rpath,.,--no-as-needed" weakdata weakdata.dsym ""
 422     build_exec "ELF weak data last DSO" foo "libfoo1a.so main1.o libbar1a.so" "-Wl,-rpath,.,--no-as-needed" weakdata weakdata.dsym ""
 423     build_exec "ELF weak data first DSO common" foo "main1.o libbar1a.so libfoo1b.so" "-Wl,--no-as-needed,-rpath,.,-rpath-link,." weakdata weakdata.dsym ""
 424     build_exec "ELF weak data last DSO common" foo "libfoo1b.so main1.o libbar1a.so" "-Wl,--no-as-needed,-rpath,.,-rpath-link,." weakdata weakdata.dsym ""
 425 }
 426
 427 if {![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/size_foo.c $tmpdir/size_foo.o]
 428     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/size_bar.c $tmpdir/size_bar_s.o]
 429     || ![ld_compile "$cc_cmd $picflag -DSIZE_BIG" $srcdir/$subdir/size_bar.c $tmpdir/size_bar.o]
 430     || ![ld_compile "$cc_cmd" $srcdir/$subdir/size_main.c $tmpdir/size_main.o]} then {
 431     unsupported "ELF weak (size)"
 432 } else {
 433     build_lib "ELF DSO small bar (size)" libsize_bar_s "size_bar_s.o" ""
 434     build_lib "ELF DSO foo with small bar (size)" libsize_foo "size_foo.o libsize_bar_s.so" ""
 435     build_lib "ELF DSO big bar (size)" libsize_bar "size_bar.o" ""
 436     build_exec "ELF weak size" size_main "size_main.o libsize_foo.so libsize_bar.so" "-Wl,-rpath=.,-rpath-link=.,--no-as-needed" size "" ""
 437 }
 438
 439 verbose "size2"
 440 run_dump_test $srcdir/$subdir/size2
 441
 442 if {![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/alias.c $tmpdir/alias.o]
 443     || ![ld_link $cc_cmd $tmpdir/alias.so "$shared $tmpdir/alias.o"]
 444     || ![ld_compile $cc_cmd $srcdir/$subdir/aliasmain.c $tmpdir/aliasmain.o]
 445     || ![ld_compile $cc_cmd $srcdir/$subdir/weakref1.c $tmpdir/weakref1.o]
 446     || ![ld_compile $cc_cmd $srcdir/$subdir/weakref2.c $tmpdir/weakref2.o]} then {
 447     unsupported "ELF weak (alias)"
 448 } else {
 449     build_exec "ELF weak (alias)" alias "aliasmain.o weakref1.o weakref2.o alias.so" "-Wl,-rpath=.,--no-as-needed" alias "" ""
 450 }
 451
 452 set CFLAGS_FOR_TARGET "$saved_CFLAGS"