ld/testsuite/ld-elfweak/elfweak.exp

   1 # Expect script for ld-weak tests
   2 #   Copyright (C) 2001-2024 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 # Skip targets where -shared is not supported
  31 if { ![check_shared_lib_support] } {
  32     return
  33 }
  34
  35 # This test can only be run on a couple of ELF platforms.
  36 # Square bracket expressions seem to confuse istarget.
  37 # This is similar to the test that is used in ld-shared, BTW.
  38 if {    ![istarget alpha*-*-linux*]
  39      && ![istarget arm*-*-linux*]
  40      && ![istarget hppa*64*-*-hpux*]
  41      && ![istarget hppa*-*-linux*]
  42      && ![istarget i?86-*-elf*]
  43      && ![istarget i?86-*-linux*]
  44      && ![istarget i?86-*-gnu*]
  45      && ![istarget ia64-*-elf*]
  46      && ![istarget ia64-*-linux*]
  47      && ![istarget m68k-*-linux*]
  48      && ![istarget mips*-*-irix5*]
  49      && ![istarget mips*-*-linux*]
  50      && ![istarget powerpc*-*-elf*]
  51      && ![istarget powerpc*-*-linux*]
  52      && ![istarget powerpc*-*-sysv4*]
  53      && ![istarget sh\[34\]*-*-linux*]
  54      && ![istarget sparc*-*-elf]
  55      && ![istarget sparc*-*-solaris2*]
  56      && ![istarget sparc*-*-linux*]
  57      && ![istarget x86_64-*-linux*]
  58      && ![istarget *-*-nacl*] } {
  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 list_a {}
 110         set list_b {}
 111
 112         while { [gets $file_a line] != $eof } {
 113             if [regexp "^#.*$" $line] then {
 114                 continue
 115             } else {
 116                 lappend list_a $line
 117             }
 118         }
 119         close $file_a
 120
 121         while { [gets $file_b line] != $eof } {
 122             if [regexp {\.text.* \.[^ ]*$} $line] then {
 123                 # Discard defined powerpc64 dot-symbols
 124                 continue
 125             } else {
 126                 lappend list_b $line
 127             }
 128         }
 129         close $file_b
 130
 131         for { set i 0 } { $i < [llength $list_a] } { incr i } {
 132             set line_a [lindex $list_a $i]
 133             set line_b [lindex $list_b $i]
 134
 135             verbose "\t$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 $list_b] } {
 148             verbose -log "Line count"
 149             return 0
 150         }
 151         return 1
 152
 153     } else {
 154         verbose -log "$exec_output"
 155         return 0
 156     }
 157 }
 158
 159 #
 160 # objdump_dymsymstuff
 161 #       Dump dynamic symbol stuff and make sure that it is sane.
 162 #
 163 proc objdump_dynsymstuff { objdump object expectfile } {
 164     global DOBJDUMP_FLAGS
 165     global version_output
 166     global diff
 167     global tmpdir
 168
 169     if ![info exists DOBJDUMP_FLAGS] { set DOBJDUMP_FLAGS "" }
 170
 171     set cmd "$objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out"
 172     verbose -log $cmd
 173     catch "exec $cmd" exec_output
 174     set exec_output [prune_warnings $exec_output]
 175     if [string match "" $exec_output] then {
 176
 177 # Now do a line-by-line comparison to effectively diff the darned things
 178 # The stuff coming from the expectfile is actually a regex, so we can
 179 # skip over the actual addresses and so forth.  This is currently very
 180 # simpleminded - it expects a one-to-one correspondence in terms of line
 181 # numbers.
 182
 183         if [file exists $expectfile] then {
 184             set file_a [open $expectfile r]
 185         } else {
 186             warning "$expectfile doesn't exist"
 187             return 0
 188         }
 189
 190         if [file exists $tmpdir/objdump.out] then {
 191             set file_b [open $tmpdir/objdump.out r]
 192         } else {
 193             fail "$tmpdir/objdump.out doesn't exist"
 194             return 0
 195         }
 196
 197         verbose "# Diff'ing: $expectfile $tmpdir/objdump.out" 2
 198
 199         set eof -1
 200         set list_a {}
 201         set list_b {}
 202
 203         while { [gets $file_a line] != $eof } {
 204             if [regexp "^#.*$" $line] then {
 205                 continue
 206             } else {
 207                 lappend list_a $line
 208             }
 209         }
 210         close $file_a
 211
 212         while { [gets $file_b line] != $eof } {
 213             if [regexp {\.text.* \.[^ ]*$} $line] then {
 214                 # Discard defined powerpc64 dot-symbols
 215                 continue
 216             } else {
 217                 lappend list_b $line
 218             }
 219         }
 220         close $file_b
 221
 222         for { set i 0 } { $i < [llength $list_b] } { incr i } {
 223             set line_b [lindex $list_b $i]
 224
 225 # The tests are rigged so that we should never export a symbol with the
 226 # word 'hide' in it.  Thus we just search for it, and bail if we find it.
 227             if [regexp "hide" $line_b] then {
 228                 verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
 229
 230                 return 0
 231             }
 232
 233             verbose "\t$expectfile: $i: $line_b" 3
 234
 235             # We can't assume that the sort is consistent across
 236             # systems, so we must check each regexp.  When we find a
 237             # regexp, we null it out, so we don't match it twice.
 238             for { set j 0 } { $j < [llength $list_a] } { incr j } {
 239                 set line_a [lindex $list_a $j]
 240
 241                 if [regexp $line_a $line_b] then {
 242                     lreplace $list_a $j $j "CAN NOT MATCH"
 243                     break
 244                 }
 245             }
 246
 247             if { $j >= [llength $list_a] } {
 248                 verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
 249
 250                 return 0
 251             }
 252         }
 253
 254         if { [llength $list_a] != [llength $list_b] } {
 255             verbose -log "Line count"
 256             return 0
 257         }
 258         return 1
 259
 260     } else {
 261         verbose -log "$exec_output"
 262         return 0
 263     }
 264 }
 265
 266 proc build_lib {test libname objs dynsymexp} {
 267     global CC_FOR_TARGET
 268     global objdump
 269     global tmpdir
 270     global shared
 271     global srcdir
 272     global subdir
 273     global NOSANITIZE_CFLAGS
 274     global NOLTO_CFLAGS
 275
 276     set files ""
 277     foreach obj $objs {
 278       set files "$files $tmpdir/$obj"
 279     }
 280
 281     if {![ld_link "$CC_FOR_TARGET $NOSANITIZE_CFLAGS $NOLTO_CFLAGS" $tmpdir/$libname.so "$shared $files"]} {
 282         fail $test
 283         return
 284     }
 285
 286     if {![string match "" $dynsymexp]
 287         && ![objdump_dynsymstuff $objdump $tmpdir/$libname.so $srcdir/$subdir/$dynsymexp]} {
 288         fail $test
 289         return
 290     }
 291     pass $test
 292 }
 293
 294 proc build_exec { test execname objs flags dat dynsymexp symexp} {
 295     global CC_FOR_TARGET
 296     global objdump
 297     global tmpdir
 298     global srcdir
 299     global subdir
 300     global exec_output
 301     global NOSANITIZE_CFLAGS
 302     global NOLTO_CFLAGS
 303
 304     set files ""
 305     foreach obj $objs {
 306       set files "$files $tmpdir/$obj"
 307     }
 308
 309     if {![ld_link $CC_FOR_TARGET $tmpdir/$execname "$flags $NOSANITIZE_CFLAGS $NOLTO_CFLAGS $files"]} {
 310         fail "$test"
 311         return
 312     }
 313
 314     if {![string match "" $dynsymexp]} then {
 315         if {![objdump_dynsymstuff $objdump $tmpdir/$execname $srcdir/$subdir/$dynsymexp]} {
 316             fail $test
 317             return
 318         }
 319     }
 320
 321     if {![string match "" $symexp]} then {
 322         if {![objdump_symstuff $objdump $tmpdir/$execname $srcdir/$subdir/$symexp]} {
 323             fail $test
 324             return
 325         }
 326     }
 327
 328     if ![isnative] {
 329         unsupported $test
 330         return
 331     }
 332     # Run the resulting program
 333     send_log "$tmpdir/$execname >$tmpdir/$execname.out\n"
 334     verbose "$tmpdir/$execname >$tmpdir/$execname.out"
 335     catch "exec $tmpdir/$execname >$tmpdir/$execname.out" exec_output
 336     if ![string match "" $exec_output] then {
 337         send_log "$exec_output\n"
 338         verbose "$exec_output"
 339         fail $test
 340         return
 341     }
 342
 343     send_log "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat\n"
 344     verbose "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat"
 345     catch "exec diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat" exec_output
 346     set exec_output [prune_warnings $exec_output]
 347
 348     if {![string match "" $exec_output]} then {
 349         send_log "$exec_output\n"
 350         verbose "$exec_output"
 351         fail $test
 352         return
 353     }
 354
 355     pass $test
 356 }
 357
 358 # Disable LTO for these tests.
 359 set cc_cmd "$CC_FOR_TARGET"
 360 if {[check_lto_available]} {
 361    append cc_cmd " -fno-lto"
 362 }
 363
 364 # Disable all sanitizers and LTO.
 365 set saved_CFLAGS "$CFLAGS_FOR_TARGET"
 366 append CFLAGS_FOR_TARGET " $NOSANITIZE_CFLAGS $NOLTO_CFLAGS"
 367
 368 # Old version of GCC for MIPS default to enabling -fpic
 369 # and get confused if it is used on the command line.
 370 if { [istarget mips*-*-*] && ! [at_least_gcc_version 4 3] } then {
 371     set picflag ""
 372 } else {
 373     # Unfortunately, the gcc argument is -fpic and the cc argument is
 374     # -KPIC.  We have to try both.
 375     set picflag "-fpic"
 376     send_log "$CC_FOR_TARGET $picflag\n"
 377     verbose "$CC_FOR_TARGET $picflag"
 378     catch "exec $CC_FOR_TARGET $picflag" exec_output
 379     send_log "$exec_output\n"
 380     verbose "--" "$exec_output"
 381     if { [string match "*illegal option*" $exec_output]
 382          || [string match "*option ignored*" $exec_output]
 383          || [string match "*unrecognized option*" $exec_output]
 384          || [string match "*passed to ld*" $exec_output] } {
 385         set picflag "-KPIC"
 386     }
 387 }
 388 verbose "Using $picflag to compile PIC code"
 389
 390 if {![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/foo.c $tmpdir/foo.o]
 391     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/bar.c $tmpdir/bar.o]
 392     || ![ld_compile "$cc_cmd" $srcdir/$subdir/main.c $tmpdir/main.o]
 393     || ![ld_link $cc_cmd $tmpdir/libbar.so "$shared $tmpdir/bar.o"]
 394     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/foo1a.c $tmpdir/foo1a.o]
 395     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/foo1b.c $tmpdir/foo1b.o]
 396     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/bar1a.c $tmpdir/bar1a.o]
 397     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/bar1b.c $tmpdir/bar1b.o]
 398     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/bar1c.c $tmpdir/bar1c.o]
 399     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/main1.c $tmpdir/main1.o]} then {
 400     unsupported "ELF weak"
 401 } elseif {![ld_link $cc_cmd $tmpdir/libfoo1a.so "$shared $tmpdir/foo1a.o"]
 402           || ![ld_link $cc_cmd $tmpdir/libfoo1b.so "$shared $tmpdir/foo1b.o"]
 403           || ![ld_link $cc_cmd $tmpdir/libbar1a.so "$shared $tmpdir/bar1a.o $tmpdir/libfoo1a.so"]} then {
 404     fail "ELF weak"
 405 } else {
 406     build_lib "ELF DSO weak func first" libfoo "foo.o bar.o" dso.dsym
 407     build_lib "ELF DSO weak func last" libfoo "bar.o foo.o" dso.dsym
 408     build_lib "ELF DSO weak func first DSO" libfoo "foo.o libbar.so" dsow.dsym
 409     build_lib "ELF DSO weak func last DSO" libfoo "libbar.so foo.o" dsow.dsym
 410     build_exec "ELF weak func first" foo "main.o bar.o" "" strong "" strong.sym
 411     build_exec "ELF weak func last" foo "bar.o main.o" "" strong "" strong.sym
 412     build_exec "ELF weak func first DSO" foo "main.o libbar.so" "-Wl,-rpath,.,--no-as-needed" weak weak.dsym ""
 413     build_exec "ELF weak func last DSO" foo "libbar.so main.o" "-Wl,-rpath,.,--no-as-needed" weak weak.dsym ""
 414     build_lib "ELF DSO weak data first" libfoo "bar1a.o foo1a.o" dsodata.dsym
 415     build_lib "ELF DSO weak data last" libfoo "foo1a.o bar1a.o" dsodata.dsym
 416     build_lib "ELF DSO weak data first DSO" libfoo "main1.o libfoo1a.so" dsowdata.dsym
 417     build_lib "ELF DSO weak data last DSO" libfoo "libfoo1a.so main1.o" dsowdata.dsym
 418     build_lib "ELF DSO weak data first DSO common" libfoo "main1.o libfoo1b.so" dsowdata.dsym
 419     build_lib "ELF DSO weak data last DSO common" libfoo "libfoo1b.so main1.o" dsowdata.dsym
 420     build_exec "ELF weak data first" foo "main1.o bar1a.o foo1a.o" "" strongdata "" strongdata.sym
 421     build_exec "ELF weak data last" foo "foo1a.o main1.o bar1a.o" "" strongdata "" strongdata.sym
 422     build_exec "ELF weak data first common" foo "main1.o bar1a.o foo1b.o" "" strongdata "" strongcomm.sym
 423     build_exec "ELF weak data last common" foo "foo1b.o main1.o bar1a.o" "" strongdata "" strongcomm.sym
 424     build_exec "ELF weak data first DSO" foo "main1.o libbar1a.so libfoo1a.so" "-Wl,-rpath,.,--no-as-needed" weakdata weakdata.dsym ""
 425     build_exec "ELF weak data last DSO" foo "libfoo1a.so main1.o libbar1a.so" "-Wl,-rpath,.,--no-as-needed" weakdata weakdata.dsym ""
 426     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 ""
 427     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 ""
 428 }
 429
 430 if {![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/size_foo.c $tmpdir/size_foo.o]
 431     || ![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/size_bar.c $tmpdir/size_bar_s.o]
 432     || ![ld_compile "$cc_cmd $picflag -DSIZE_BIG" $srcdir/$subdir/size_bar.c $tmpdir/size_bar.o]
 433     || ![ld_compile "$cc_cmd" $srcdir/$subdir/size_main.c $tmpdir/size_main.o]} then {
 434     unsupported "ELF weak (size)"
 435 } else {
 436     build_lib "ELF DSO small bar (size)" libsize_bar_s "size_bar_s.o" ""
 437     build_lib "ELF DSO foo with small bar (size)" libsize_foo "size_foo.o libsize_bar_s.so" ""
 438     build_lib "ELF DSO big bar (size)" libsize_bar "size_bar.o" ""
 439     build_exec "ELF weak size" size_main "size_main.o libsize_foo.so libsize_bar.so" "-Wl,-rpath=.,-rpath-link=.,--no-as-needed" size "" ""
 440 }
 441
 442 verbose "size2"
 443 run_dump_test $srcdir/$subdir/size2
 444
 445 if {![ld_compile "$cc_cmd $picflag" $srcdir/$subdir/alias.c $tmpdir/alias.o]
 446     || ![ld_link $cc_cmd $tmpdir/alias.so "$shared $tmpdir/alias.o"]
 447     || ![ld_compile $cc_cmd $srcdir/$subdir/aliasmain.c $tmpdir/aliasmain.o]
 448     || ![ld_compile $cc_cmd $srcdir/$subdir/weakref1.c $tmpdir/weakref1.o]
 449     || ![ld_compile $cc_cmd $srcdir/$subdir/weakref2.c $tmpdir/weakref2.o]} then {
 450     unsupported "ELF weak (alias)"
 451 } else {
 452     build_exec "ELF weak (alias)" alias "aliasmain.o weakref1.o weakref2.o alias.so" "-Wl,-rpath=.,--no-as-needed" alias "" ""
 453 }
 454
 455 set CFLAGS_FOR_TARGET "$saved_CFLAGS"