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