ld/testsuite/ld-elfweak/elfweak.exp

   1 # Expect script for ld-weak tests
   2 #   Copyright (C) 2001-2020 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 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 if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
  59     return
  60 }
  61
  62 set diff diff
  63 set tmpdir tmpdir
  64 set DOBJDUMP_FLAGS --dynamic-syms
  65 set SOBJDUMP_FLAGS --syms
  66 set shared "--shared -Wl,--no-as-needed"
  67
  68 global NOSANTIZE_CFLAGS
  69
  70 #
  71 # objdump_symstuff
  72 #       Dump non-dynamic symbol stuff and make sure that it is sane.
  73 #
  74 proc objdump_symstuff { objdump object expectfile } {
  75     global SOBJDUMP_FLAGS
  76     global version_output
  77     global diff
  78     global tmpdir
  79
  80     if ![info exists SOBJDUMP_FLAGS] { set SOBJDUMP_FLAGS "" }
  81
  82     set cmd "$objdump $SOBJDUMP_FLAGS $object | sed -n {s/^\\(\[0-9a-f\]* *\\)\\(\[gw\]\\)\\( *\\)\\(\[FO\]\\)/\\1\\2\\4\\3/;/foo$/p} > $tmpdir/objdump.out"
  83     verbose -log $cmd
  84     catch "exec $cmd" exec_output
  85     set exec_output [prune_warnings $exec_output]
  86     if [string match "" $exec_output] then {
  87
  88 # Now do a line-by-line comparison to effectively diff the darned things
  89 # The stuff coming from the expectfile is actually a regex, so we can
  90 # skip over the actual addresses and so forth.  This is currently very
  91 # simpleminded - it expects a one-to-one correspondence in terms of line
  92 # numbers.
  93
  94         if [file exists $expectfile] then {
  95             set file_a [open $expectfile r]
  96         } else {
  97             perror "$expectfile doesn't exist"
  98             return 0
  99         }
 100
 101         if [file exists $tmpdir/objdump.out] then {
 102             set file_b [open $tmpdir/objdump.out r]
 103         } else {
 104             perror "$tmpdir/objdump.out doesn't exist"
 105             return 0
 106         }
 107
 108         verbose "# Diff'ing: $expectfile $tmpdir/objdump.out" 2
 109
 110         set eof -1
 111         set differences 0
 112
 113         while { [gets $file_a line] != $eof } {
 114             if [regexp "^#.*$" $line] then {
 115                 continue
 116             } else {
 117                 lappend list_a $line
 118             }
 119         }
 120         close $file_a
 121
 122         while { [gets $file_b line] != $eof } {
 123             if [regexp {\.text.* \.[^ ]*$} $line] then {
 124                 # Discard defined powerpc64 dot-symbols
 125                 continue
 126             } else {
 127                 lappend list_b $line
 128             }
 129         }
 130         close $file_b
 131
 132         for { set i 0 } { $i < [llength $list_a] } { incr i } {
 133             set line_a [lindex $list_a $i]
 134             set line_b [lindex $list_b $i]
 135
 136
 137             verbose "\t$expectfile: $i: $line_a" 3
 138             verbose "\t/tmp/objdump.out: $i: $line_b" 3
 139             if [regexp $line_a $line_b] then {
 140                 continue
 141             } else {
 142                 verbose -log "\t$expectfile: $i: $line_a"
 143                 verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
 144
 145                 return 0
 146             }
 147         }
 148
 149         if { [llength $list_a] != [llength $list_b] } {
 150             verbose -log "Line count"
 151             return 0
 152         }
 153
 154         if $differences<1 then {
 155             return 1
 156         }
 157
 158         return 0
 159     } else {
 160         verbose -log "$exec_output"
 161         return 0
 162     }
 163
 164 }
 165
 166 #
 167 # objdump_dymsymstuff
 168 #       Dump dynamic symbol stuff and make sure that it is sane.
 169 #
 170 proc objdump_dynsymstuff { objdump object expectfile } {
 171     global DOBJDUMP_FLAGS
 172     global version_output
 173     global diff
 174     global tmpdir
 175
 176     if ![info exists DOBJDUMP_FLAGS] { set DOBJDUMP_FLAGS "" }
 177
 178     set cmd "$objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out"
 179     verbose -log $cmd
 180     catch "exec $cmd" exec_output
 181     set exec_output [prune_warnings $exec_output]
 182     if [string match "" $exec_output] then {
 183
 184 # Now do a line-by-line comparison to effectively diff the darned things
 185 # The stuff coming from the expectfile is actually a regex, so we can
 186 # skip over the actual addresses and so forth.  This is currently very
 187 # simpleminded - it expects a one-to-one correspondence in terms of line
 188 # numbers.
 189
 190         if [file exists $expectfile] then {
 191             set file_a [open $expectfile r]
 192         } else {
 193             warning "$expectfile doesn't exist"
 194             return 0
 195         }
 196
 197         if [file exists $tmpdir/objdump.out] then {
 198             set file_b [open $tmpdir/objdump.out r]
 199         } else {
 200             fail "$tmpdir/objdump.out doesn't exist"
 201             return 0
 202         }
 203
 204         verbose "# Diff'ing: $expectfile $tmpdir/objdump.out" 2
 205
 206         set eof -1
 207         set differences 0
 208
 209         while { [gets $file_a line] != $eof } {
 210             if [regexp "^#.*$" $line] then {
 211                 continue
 212             } else {
 213                 lappend list_a $line
 214             }
 215         }
 216         close $file_a
 217
 218         while { [gets $file_b line] != $eof } {
 219             if [regexp {\.text.* \.[^ ]*$} $line] then {
 220                 # Discard defined powerpc64 dot-symbols
 221                 continue
 222             } else {
 223                 lappend list_b $line
 224             }
 225         }
 226         close $file_b
 227
 228         for { set i 0 } { $i < [llength $list_b] } { incr i } {
 229             set line_b [lindex $list_b $i]
 230
 231 # The tests are rigged so that we should never export a symbol with the
 232 # word 'hide' in it.  Thus we just search for it, and bail if we find it.
 233             if [regexp "hide" $line_b] then {
 234                 verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
 235
 236                 return 0
 237             }
 238
 239             verbose "\t$expectfile: $i: $line_b" 3
 240
 241             # We can't assume that the sort is consistent across
 242             # systems, so we must check each regexp.  When we find a
 243             # regexp, we null it out, so we don't match it twice.
 244             for { set j 0 } { $j < [llength $list_a] } { incr j } {
 245                 set line_a [lindex $list_a $j]
 246
 247                 if [regexp $line_a $line_b] then {
 248                     lreplace $list_a $j $j "CAN NOT MATCH"
 249                     break
 250                 }
 251             }
 252
 253             if { $j >= [llength $list_a] } {
 254                 verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
 255
 256                 return 0
 257             }
 258         }
 259
 260         if { [llength $list_a] != [llength $list_b] } {
 261             verbose -log "Line count"
 262             return 0
 263         }
 264
 265         if $differences<1 then {
 266             return 1
 267         }
 268
 269         return 0
 270     } else {
 271         verbose -log "$exec_output"
 272         return 0
 273     }
 274
 275 }
 276
 277 proc build_lib {test libname objs dynsymexp} {
 278     global CC
 279     global objdump
 280     global tmpdir
 281     global shared
 282     global srcdir
 283     global subdir
 284
 285     set files ""
 286     foreach obj $objs {
 287       set files "$files $tmpdir/$obj"
 288     }
 289
 290     if {![ld_link $CC $tmpdir/$libname.so "$shared $files"]} {
 291         fail $test
 292         return
 293     }
 294
 295     if {![string match "" $dynsymexp]
 296         && ![objdump_dynsymstuff $objdump $tmpdir/$libname.so $srcdir/$subdir/$dynsymexp]} {
 297         fail $test
 298         return
 299     }
 300     pass $test
 301 }
 302
 303 proc build_exec { test execname objs flags dat dynsymexp symexp} {
 304     global CC
 305     global objdump
 306     global tmpdir
 307     global srcdir
 308     global subdir
 309     global exec_output
 310     global NOSANTIZE_CFLAGS
 311
 312     set files ""
 313     foreach obj $objs {
 314       set files "$files $tmpdir/$obj"
 315     }
 316
 317     if {![ld_link $CC $tmpdir/$execname "$flags $NOSANTIZE_CFLAGS $files"]} {
 318         fail "$test"
 319         return
 320     }
 321
 322     if {![string match "" $dynsymexp]} then {
 323         if {![objdump_dynsymstuff $objdump $tmpdir/$execname $srcdir/$subdir/$dynsymexp]} {
 324             fail $test
 325             return
 326         }
 327     }
 328
 329     if {![string match "" $symexp]} then {
 330         if {![objdump_symstuff $objdump $tmpdir/$execname $srcdir/$subdir/$symexp]} {
 331             fail $test
 332             return
 333         }
 334     }
 335
 336     if ![isnative] {
 337         unsupported $test
 338         return
 339     }
 340     # Run the resulting program
 341     send_log "$tmpdir/$execname >$tmpdir/$execname.out\n"
 342     verbose "$tmpdir/$execname >$tmpdir/$execname.out"
 343     catch "exec $tmpdir/$execname >$tmpdir/$execname.out" exec_output
 344     if ![string match "" $exec_output] then {
 345         send_log "$exec_output\n"
 346         verbose "$exec_output"
 347         fail $test
 348         return
 349     }
 350
 351     send_log "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat\n"
 352     verbose "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat"
 353     catch "exec diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat" exec_output
 354     set exec_output [prune_warnings $exec_output]
 355
 356     if {![string match "" $exec_output]} then {
 357         send_log "$exec_output\n"
 358         verbose "$exec_output"
 359         fail $test
 360         return
 361     }
 362
 363     pass $test
 364 }
 365
 366 # Old version of GCC for MIPS default to enabling -fpic
 367 # and get confused if it is used on the command line.
 368 if { [istarget mips*-*-*] && ! [at_least_gcc_version 4 3] } then {
 369     set picflag ""
 370 } else {
 371     # Unfortunately, the gcc argument is -fpic and the cc argument is
 372     # -KPIC.  We have to try both.
 373     set picflag "-fpic"
 374     send_log "$CC $picflag\n"
 375     verbose "$CC $picflag"
 376     catch "exec $CC $picflag" exec_output
 377     send_log "$exec_output\n"
 378     verbose "--" "$exec_output"
 379     if { [string match "*illegal option*" $exec_output]
 380          || [string match "*option ignored*" $exec_output]
 381          || [string match "*unrecognized option*" $exec_output]
 382          || [string match "*passed to ld*" $exec_output] } {
 383         set picflag "-KPIC"
 384     }
 385 }
 386 verbose "Using $picflag to compile PIC code"
 387
 388 if {![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/foo.c $tmpdir/foo.o]
 389     || ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/bar.c $tmpdir/bar.o]
 390     || ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/main.c $tmpdir/main.o]
 391     || ![ld_link $CC $tmpdir/libbar.so "$shared $tmpdir/bar.o"]
 392     || ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/foo1a.c $tmpdir/foo1a.o]
 393     || ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/foo1b.c $tmpdir/foo1b.o]
 394     || ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/bar1a.c $tmpdir/bar1a.o]
 395     || ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/bar1b.c $tmpdir/bar1b.o]
 396     || ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/bar1c.c $tmpdir/bar1c.o]
 397     || ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/main1.c $tmpdir/main1.o]
 398     || ![ld_link $CC $tmpdir/libfoo1a.so "$shared $tmpdir/foo1a.o"]
 399     || ![ld_link $CC $tmpdir/libfoo1b.so "$shared $tmpdir/foo1b.o"]
 400     || ![ld_link $CC $tmpdir/libbar1a.so "$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 $CFLAGS $picflag" $srcdir/$subdir/size_foo.c $tmpdir/size_foo.o]
 428     || ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/size_bar.c $tmpdir/size_bar_s.o]
 429     || ![ld_compile "$CC $CFLAGS $picflag -DSIZE_BIG" $srcdir/$subdir/size_bar.c $tmpdir/size_bar.o]
 430     || ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/size_main.c $tmpdir/size_main.o]} then {
 431     unresolved "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 $CFLAGS $picflag" $srcdir/$subdir/alias.c $tmpdir/alias.o]
 443     || ![ld_link $CC $tmpdir/alias.so "$shared $tmpdir/alias.o"]
 444     || ![ld_compile "$CC $CFLAGS $NOSANTIZE_CFLAGS" $srcdir/$subdir/aliasmain.c $tmpdir/aliasmain.o]
 445     || ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/weakref1.c $tmpdir/weakref1.o]
 446     || ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/weakref2.c $tmpdir/weakref2.o]} then {
 447     unresolved "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 }