| 1 | # Expect script for linker support of IFUNC symbols and relocations. |
| 2 | # |
| 3 | # Copyright (C) 2009-2019 Free Software Foundation, Inc. |
| 4 | # Contributed by Red Hat. |
| 5 | # |
| 6 | # This file is part of the GNU Binutils. |
| 7 | # |
| 8 | # This program is free software; you can redistribute it and/or modify |
| 9 | # it under the terms of the GNU General Public License as published by |
| 10 | # the Free Software Foundation; either version 3 of the License, or |
| 11 | # (at your option) any later version. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program; if not, write to the Free Software |
| 20 | # Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| 21 | # MA 02110-1301, USA. |
| 22 | # |
| 23 | # Written by Nick Clifton <nickc@redhat.com> |
| 24 | |
| 25 | |
| 26 | # IFUNC support has only been implemented for the ix86, x86_64, powerpc, |
| 27 | # aarch64, sparc, and S/390 so far. |
| 28 | if {!(([istarget "i?86-*-*"] |
| 29 | || [istarget "x86_64-*-*"] |
| 30 | || [istarget "powerpc*-*-*"] |
| 31 | || [istarget "aarch64*-*-*"] |
| 32 | || [istarget "sparc*-*-*"] |
| 33 | || [istarget "s390*-*-*"]) |
| 34 | && ([istarget "*-*-elf*"] |
| 35 | || [istarget "*-*-nacl*"] |
| 36 | || [istarget "*-*-linux*"] |
| 37 | || [istarget "*-*-gnu*"])) } { |
| 38 | verbose "IFUNC tests not run - target does not support IFUNC" |
| 39 | return |
| 40 | } |
| 41 | |
| 42 | # Skip targets where -shared is not supported |
| 43 | |
| 44 | if ![check_shared_lib_support] { |
| 45 | return |
| 46 | } |
| 47 | |
| 48 | global ASFLAGS |
| 49 | set saved_ASFLAGS "$ASFLAGS" |
| 50 | if { [istarget "i?86-*-*"] || [istarget "x86_64-*-*"] } { |
| 51 | set ASFLAGS "$ASFLAGS -mx86-used-note=no" |
| 52 | } |
| 53 | |
| 54 | # This test does not need a compiler... |
| 55 | run_dump_test "ifuncmod5" |
| 56 | |
| 57 | set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]] |
| 58 | foreach t $test_list { |
| 59 | # We need to strip the ".d", but can leave the dirname. |
| 60 | verbose [file rootname $t] |
| 61 | run_dump_test [file rootname $t] |
| 62 | } |
| 63 | |
| 64 | # We need a working compiler. (Strictly speaking this is |
| 65 | # not true, we could use target specific assembler files). |
| 66 | if { [which $CC] == 0 } { |
| 67 | verbose "IFUNC tests not run - no compiler available" |
| 68 | return |
| 69 | } |
| 70 | |
| 71 | # A procedure to check the OS/ABI field in the ELF header of a binary file. |
| 72 | proc check_osabi { binary_file expected_osabi } { |
| 73 | global READELF |
| 74 | global READELFFLAGS |
| 75 | |
| 76 | catch "exec $READELF $READELFFLAGS --file-header $binary_file > readelf.out" got |
| 77 | |
| 78 | if ![string match "" $got] then { |
| 79 | verbose "proc check_osabi: Readelf produced unexpected out processing $binary_file: $got" |
| 80 | return 0 |
| 81 | } |
| 82 | |
| 83 | if { ![regexp "\n\[ \]*OS/ABI:\[ \]*(.+)\n\[ \]*ABI" \ |
| 84 | [file_contents readelf.out] nil osabi] } { |
| 85 | verbose "proc check_osabi: Readelf failed to extract an ELF header from $binary_file" |
| 86 | return 0 |
| 87 | } |
| 88 | |
| 89 | if { $osabi == $expected_osabi } { |
| 90 | return 1 |
| 91 | } |
| 92 | |
| 93 | verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi" |
| 94 | |
| 95 | return 0 |
| 96 | } |
| 97 | |
| 98 | # A procedure to confirm that a file contains the IFUNC symbol. |
| 99 | # Returns -1 upon error, 0 if the symbol was not found and 1 if it was found. |
| 100 | proc contains_ifunc_symbol { binary_file } { |
| 101 | global READELF |
| 102 | global READELFFLAGS |
| 103 | |
| 104 | catch "exec $READELF $READELFFLAGS --symbols $binary_file > readelf.out" got |
| 105 | |
| 106 | if ![string match "" $got] then { |
| 107 | verbose "proc contains_ifunc_symbol: Readelf produced unexpected out processing $binary_file: $got" |
| 108 | return -1 |
| 109 | } |
| 110 | |
| 111 | # Look for a line like this: |
| 112 | # 58: 0000000000400600 30 IFUNC GLOBAL DEFAULT 12 library_func2 |
| 113 | # with perhaps some other info between the visibility and section |
| 114 | |
| 115 | if { ![regexp ".*\[ \]*IFUNC\[ \]+GLOBAL\[ \]+DEFAULT .* \[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } { |
| 116 | return 0 |
| 117 | } |
| 118 | |
| 119 | return 1 |
| 120 | } |
| 121 | |
| 122 | # A procedure to confirm that a file contains the R_*_IRELATIVE |
| 123 | # relocation. |
| 124 | # Returns -1 upon error, 0 if the relocation was not found and 1 if |
| 125 | # it was found. |
| 126 | proc contains_irelative_reloc { binary_file } { |
| 127 | global READELF |
| 128 | global READELFFLAGS |
| 129 | |
| 130 | catch "exec $READELF $READELFFLAGS --relocs --wide $binary_file > readelf.out" got |
| 131 | |
| 132 | if ![string match "" $got] then { |
| 133 | verbose "proc contains_irelative_reloc: Readelf produced unexpected out processing $binary_file: $got" |
| 134 | return -1 |
| 135 | } |
| 136 | |
| 137 | # Look for a line like this: |
| 138 | # 0000000000600ab0 0000000000000025 R_X86_64_IRELATIVE 000000000040061c |
| 139 | # 080496f4 0000002a R_386_IRELATIVE |
| 140 | |
| 141 | |
| 142 | if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_\[_0-9A-Z\]+_IREL(|ATIVE)\[ \]*\[0-9a-f\]*\n" [file_contents readelf.out]] } { |
| 143 | return 0 |
| 144 | } |
| 145 | |
| 146 | return 1 |
| 147 | } |
| 148 | |
| 149 | # A procedure to confirm that a file contains a relocation that references an IFUNC symbol. |
| 150 | # Returns -1 upon error, 0 if the reloc was not found and 1 if it was found. |
| 151 | proc contains_ifunc_reloc { binary_file } { |
| 152 | global READELF |
| 153 | global READELFFLAGS |
| 154 | |
| 155 | catch "exec $READELF $READELFFLAGS --relocs $binary_file > readelf.out" got |
| 156 | |
| 157 | if ![string match "" $got] then { |
| 158 | verbose "proc contains_ifunc_reloc: Readelf produced unexpected out processing $binary_file: $got" |
| 159 | return -1 |
| 160 | } |
| 161 | |
| 162 | if [string match "" [file_contents readelf.out]] then { |
| 163 | verbose "No relocs found in $binary_file" |
| 164 | return 0 |
| 165 | } |
| 166 | |
| 167 | if { ![regexp "\\(\\)" [file_contents readelf.out]] } { |
| 168 | return 0 |
| 169 | } |
| 170 | |
| 171 | return 1 |
| 172 | } |
| 173 | |
| 174 | set fails 0 |
| 175 | |
| 176 | # Create the object files, libraries and executables. |
| 177 | if ![ld_compile "$CC -c -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] { |
| 178 | fail "Could not create a PIC object file" |
| 179 | set fails [expr $fails + 1] |
| 180 | } |
| 181 | if ![ld_compile "$CC -c $NOPIE_CFLAGS" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] { |
| 182 | fail "Could not create a non-PIC object file" |
| 183 | set fails [expr $fails + 1] |
| 184 | } |
| 185 | if ![ld_compile "$CC -c -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] { |
| 186 | fail "Could not create a PIC object file containing an IFUNC symbol" |
| 187 | set fails [expr $fails + 1] |
| 188 | } |
| 189 | if ![ld_compile "$CC -c $NOPIE_CFLAGS -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] { |
| 190 | fail "Could not create a non-PIC object file containing an IFUNC symbol" |
| 191 | set fails [expr $fails + 1] |
| 192 | } |
| 193 | if ![ld_compile "$CC -c -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] { |
| 194 | fail "Could not create an ordinary non-PIC object file" |
| 195 | set fails [expr $fails + 1] |
| 196 | } |
| 197 | if ![ld_assemble $as "$srcdir/ld-elf/empty.s" "tmpdir/empty.o"] { |
| 198 | fail "Could not create an empty object file" |
| 199 | set fails [expr $fails + 1] |
| 200 | } |
| 201 | if ![ld_compile "$CC -c" "$srcdir/$subdir/test-1.c" "tmpdir/test-1.o"] { |
| 202 | fail "Could not create test-1.o" |
| 203 | set fails [expr $fails + 1] |
| 204 | } |
| 205 | if ![ld_compile "$CC -fPIC -c" "$srcdir/$subdir/test-2.c" "tmpdir/test-2.o"] { |
| 206 | fail "Could not create test-2.o" |
| 207 | set fails [expr $fails + 1] |
| 208 | } |
| 209 | |
| 210 | if { $fails != 0 } { |
| 211 | return |
| 212 | } |
| 213 | |
| 214 | if ![ld_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] { |
| 215 | fail "Could not create a shared library containing an IFUNC symbol" |
| 216 | set fails [expr $fails + 1] |
| 217 | } |
| 218 | if ![ar_simple_create $ar "" "tmpdir/libifunc.a" "tmpdir/static_ifunc.o"] { |
| 219 | fail "Could not create a static library containing an IFUNC symbol" |
| 220 | set fails [expr $fails + 1] |
| 221 | } |
| 222 | |
| 223 | if { $fails != 0 } { |
| 224 | return |
| 225 | } |
| 226 | |
| 227 | if ![ld_link $CC "tmpdir/dynamic_prog" "-Wl,--no-as-needed,-rpath=./tmpdir,-Bdynamic -Ltmpdir tmpdir/shared_prog.o -lshared_ifunc"] { |
| 228 | fail "Could not link a dynamic executable" |
| 229 | set fails [expr $fails + 1] |
| 230 | } |
| 231 | if ![ld_link $CC "tmpdir/local_prog" "$NOPIE_LDFLAGS -Wl,--no-as-needed,-rpath=./tmpdir -Ltmpdir tmpdir/static_prog.o -lifunc"] { |
| 232 | fail "Could not link a dynamic executable using local ifunc" |
| 233 | set fails [expr $fails + 1] |
| 234 | } |
| 235 | if ![string match "" $STATIC_LDFLAGS] { |
| 236 | if ![ld_link $CC "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] { |
| 237 | fail "Could not link a static executable" |
| 238 | set fails [expr $fails + 1] |
| 239 | } |
| 240 | } |
| 241 | if ![ld_link $ld "tmpdir/static_nonifunc_prog" "-static tmpdir/empty.o"] { |
| 242 | fail "Could not link a non-ifunc using static executable" |
| 243 | set fails [expr $fails + 1] |
| 244 | } |
| 245 | if ![ld_link $CC "tmpdir/test-1" "-Wl,--no-as-needed,-rpath=./tmpdir tmpdir/test-1.o tmpdir/libshared_ifunc.so"] { |
| 246 | fail "Could not link test-1" |
| 247 | set fails [expr $fails + 1] |
| 248 | } |
| 249 | if ![ld_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] { |
| 250 | fail "Could not link libtest-2.so" |
| 251 | set fails [expr $fails + 1] |
| 252 | } |
| 253 | if ![ld_link $ld "tmpdir/libtest-2-now.so" "-shared -z now tmpdir/test-2.o"] { |
| 254 | fail "Could not link libtest-2-now.so" |
| 255 | set fails [expr $fails + 1] |
| 256 | } |
| 257 | |
| 258 | if { $fails == 0 } { |
| 259 | pass "Building ifunc binaries" |
| 260 | set fails 0 |
| 261 | } else { |
| 262 | return |
| 263 | } |
| 264 | |
| 265 | # Check the executables and shared libraries |
| 266 | # |
| 267 | # The linked ifunc using executables and the shared library containing |
| 268 | # ifunc should have an OSABI field of GNU. The linked non-ifunc using |
| 269 | # executable should have an OSABI field of NONE (aka System V). |
| 270 | |
| 271 | case $target_triplet in { |
| 272 | { hppa*-*-linux* } { set expected_none {UNIX - GNU} } |
| 273 | default { set expected_none {UNIX - System V} } |
| 274 | } |
| 275 | |
| 276 | if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - GNU}]} { |
| 277 | fail "Shared libraries containing ifunc does not have an OS/ABI field of GNU" |
| 278 | set fails [expr $fails + 1] |
| 279 | } |
| 280 | if {! [check_osabi tmpdir/local_prog {UNIX - GNU}]} { |
| 281 | fail "Local ifunc-using executable does not have an OS/ABI field of GNU" |
| 282 | set fails [expr $fails + 1] |
| 283 | } |
| 284 | if { ![string match "" $STATIC_LDFLAGS] \ |
| 285 | && ![check_osabi tmpdir/static_prog {UNIX - GNU}]} { |
| 286 | fail "Static ifunc-using executable does not have an OS/ABI field of GNU" |
| 287 | set fails [expr $fails + 1] |
| 288 | } |
| 289 | if {! [check_osabi tmpdir/dynamic_prog $expected_none]} { |
| 290 | fail "Dynamic ifunc-using executable does not have an OS/ABI field of $expected_none" |
| 291 | set fails [expr $fails + 1] |
| 292 | } |
| 293 | if {! [check_osabi tmpdir/static_nonifunc_prog $expected_none]} { |
| 294 | fail "Static non-ifunc-using executable does not have an OS/ABI field of $expected_none" |
| 295 | set fails [expr $fails + 1] |
| 296 | } |
| 297 | |
| 298 | # The linked ifunc using executables and the shared library containing |
| 299 | # ifunc should contain an IFUNC symbol. The non-ifunc using executable |
| 300 | # should not. |
| 301 | |
| 302 | if {[contains_ifunc_symbol tmpdir/libshared_ifunc.so] != 1} { |
| 303 | fail "Shared libraries containing ifunc does not contain an IFUNC symbol" |
| 304 | set fails [expr $fails + 1] |
| 305 | } |
| 306 | if {[contains_ifunc_symbol tmpdir/local_prog] != 1} { |
| 307 | fail "Local ifunc-using executable does not contain an IFUNC symbol" |
| 308 | set fails [expr $fails + 1] |
| 309 | } |
| 310 | if { ![string match "" $STATIC_LDFLAGS] \ |
| 311 | && [contains_ifunc_symbol tmpdir/static_prog] != 1} { |
| 312 | fail "Static ifunc-using executable does not contain an IFUNC symbol" |
| 313 | set fails [expr $fails + 1] |
| 314 | } |
| 315 | if {[contains_ifunc_symbol tmpdir/dynamic_prog] != 0} { |
| 316 | fail "Dynamic ifunc-using executable contains an IFUNC symbol" |
| 317 | set fails [expr $fails + 1] |
| 318 | } |
| 319 | if {[contains_ifunc_symbol tmpdir/static_nonifunc_prog] != 0} { |
| 320 | fail "Static non-ifunc-using executable contains an IFUNC symbol" |
| 321 | set fails [expr $fails + 1] |
| 322 | } |
| 323 | if {[contains_ifunc_symbol tmpdir/test-1] != 0} { |
| 324 | fail "test-1 contains IFUNC symbols" |
| 325 | set fails [expr $fails + 1] |
| 326 | } |
| 327 | if {[contains_ifunc_symbol tmpdir/libtest-2.so] != 0} { |
| 328 | fail "libtest-2.so contains IFUNC symbols" |
| 329 | set fails [expr $fails + 1] |
| 330 | } |
| 331 | if {[contains_ifunc_symbol tmpdir/libtest-2-now.so] != 0} { |
| 332 | fail "libtest-2-now.so contains IFUNC symbols" |
| 333 | set fails [expr $fails + 1] |
| 334 | } |
| 335 | |
| 336 | # The linked ifunc using executables and shared libraries should contain |
| 337 | # a dynamic reloc referencing the IFUNC symbol. (Even the static |
| 338 | # executable which should have a dynamic section created for it). The |
| 339 | # non-ifunc using executable should not. |
| 340 | |
| 341 | if {[contains_irelative_reloc tmpdir/libshared_ifunc.so] != 1} { |
| 342 | fail "ifunc-using shared library does not contain R_*_IRELATIVE relocation" |
| 343 | set fails [expr $fails + 1] |
| 344 | } |
| 345 | if {[contains_irelative_reloc tmpdir/local_prog] != 1} { |
| 346 | fail "Local ifunc-using executable does not contain R_*_IRELATIVE relocation" |
| 347 | set fails [expr $fails + 1] |
| 348 | } |
| 349 | if { ![string match "" $STATIC_LDFLAGS] \ |
| 350 | && [contains_irelative_reloc tmpdir/static_prog] != 1} { |
| 351 | fail "Static ifunc-using executable does not contain R_*_IRELATIVE relocation" |
| 352 | set fails [expr $fails + 1] |
| 353 | } |
| 354 | if {[contains_ifunc_reloc tmpdir/dynamic_prog] != 0} { |
| 355 | fail "Dynamic ifunc-using executable contains a reloc against an IFUNC symbol" |
| 356 | set fails [expr $fails + 1] |
| 357 | } |
| 358 | if {[contains_ifunc_reloc tmpdir/static_nonifunc_prog] == 1} { |
| 359 | fail "Static non-ifunc-using executable contains a reloc against an IFUNC symbol!" |
| 360 | set fails [expr $fails + 1] |
| 361 | } |
| 362 | |
| 363 | if { $fails == 0 } { |
| 364 | pass "Checking ifunc binaries" |
| 365 | } |
| 366 | |
| 367 | run_cc_link_tests [list \ |
| 368 | [list \ |
| 369 | "Build libpr16467a.so" \ |
| 370 | "-shared -Wl,--version-script=pr16467a.map" \ |
| 371 | "-fPIC" \ |
| 372 | { pr16467a.c } \ |
| 373 | {} \ |
| 374 | "libpr16467a.so" \ |
| 375 | ] \ |
| 376 | [list \ |
| 377 | "Build libpr16467b.a" \ |
| 378 | "" \ |
| 379 | "-fPIC" \ |
| 380 | { pr16467b.c } \ |
| 381 | {} \ |
| 382 | "libpr16467b.a" \ |
| 383 | ] \ |
| 384 | [list \ |
| 385 | "Build libpr16467b.so" \ |
| 386 | "-shared tmpdir/pr16467b.o tmpdir/libpr16467a.so \ |
| 387 | -Wl,--version-script=pr16467b.map" \ |
| 388 | "-fPIC" \ |
| 389 | { dummy.c } \ |
| 390 | {} \ |
| 391 | "libpr16467b.so" \ |
| 392 | ] \ |
| 393 | [list \ |
| 394 | "Build libpr16467c.a" \ |
| 395 | "" \ |
| 396 | "" \ |
| 397 | { pr16467c.c } \ |
| 398 | {} \ |
| 399 | "libpr16467c.a" \ |
| 400 | ] \ |
| 401 | [list \ |
| 402 | "Build libpr16467an.so" \ |
| 403 | "-shared -Wl,-z,now -Wl,--version-script=pr16467a.map" \ |
| 404 | "-fPIC" \ |
| 405 | { pr16467a.c } \ |
| 406 | {} \ |
| 407 | "libpr16467an.so" \ |
| 408 | ] \ |
| 409 | [list \ |
| 410 | "Build libpr16467bn.so" \ |
| 411 | "-shared tmpdir/pr16467b.o tmpdir/libpr16467an.so \ |
| 412 | -Wl,--version-script=pr16467b.map" \ |
| 413 | "-fPIC" \ |
| 414 | { dummy.c } \ |
| 415 | {} \ |
| 416 | "libpr16467bn.so" \ |
| 417 | ] \ |
| 418 | ] |
| 419 | |
| 420 | run_ld_link_exec_tests [list \ |
| 421 | [list \ |
| 422 | "Common symbol override ifunc test 1a" \ |
| 423 | "-static" \ |
| 424 | "" \ |
| 425 | { ifunc-common-1a.c ifunc-common-1b.c } \ |
| 426 | "ifunc-common-1a" \ |
| 427 | "ifunc-common-1.out" \ |
| 428 | "-g" \ |
| 429 | ] \ |
| 430 | [list \ |
| 431 | "Common symbol override ifunc test 1b" \ |
| 432 | "-static" \ |
| 433 | "" \ |
| 434 | { ifunc-common-1b.c ifunc-common-1a.c } \ |
| 435 | "ifunc-common-1b" \ |
| 436 | "ifunc-common-1.out" \ |
| 437 | "-g" \ |
| 438 | ] \ |
| 439 | ] |
| 440 | |
| 441 | # Run-time tests which require working IFUNC support. |
| 442 | if { ![check_ifunc_available] } { |
| 443 | return |
| 444 | } |
| 445 | |
| 446 | run_cc_link_tests [list \ |
| 447 | [list \ |
| 448 | "Build ifunc-lib.so" \ |
| 449 | "-shared" \ |
| 450 | "-fPIC" \ |
| 451 | { ifunc-lib.c } \ |
| 452 | {} \ |
| 453 | "libifunc-lib.so" \ |
| 454 | ] \ |
| 455 | [list \ |
| 456 | "Build ifunc-libn.so" \ |
| 457 | "-shared -Wl,-z,now" \ |
| 458 | "-fPIC" \ |
| 459 | { ifunc-lib.c } \ |
| 460 | {} \ |
| 461 | "libifunc-libn.so" \ |
| 462 | ] \ |
| 463 | ] |
| 464 | |
| 465 | run_ld_link_exec_tests [list \ |
| 466 | [list \ |
| 467 | "Run pr16467" \ |
| 468 | "-Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467b.so tmpdir/libpr16467a.so" \ |
| 469 | "" \ |
| 470 | { dummy.c } \ |
| 471 | "pr16467" \ |
| 472 | "pr16467.out" \ |
| 473 | "" \ |
| 474 | ] \ |
| 475 | [list \ |
| 476 | "Run pr16467 (-z now)" \ |
| 477 | "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467bn.so tmpdir/libpr16467an.so" \ |
| 478 | "" \ |
| 479 | { dummy.c } \ |
| 480 | "pr16467n" \ |
| 481 | "pr16467.out" \ |
| 482 | "" \ |
| 483 | ] \ |
| 484 | [list \ |
| 485 | "Run ifunc-main" \ |
| 486 | "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \ |
| 487 | "" \ |
| 488 | { ifunc-main.c } \ |
| 489 | "ifunc-main" \ |
| 490 | "ifunc-main.out" \ |
| 491 | ] \ |
| 492 | [list \ |
| 493 | "Run ifunc-main with -fpic" \ |
| 494 | "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \ |
| 495 | "" \ |
| 496 | { ifunc-main.c } \ |
| 497 | "ifunc-main" \ |
| 498 | "ifunc-main.out" \ |
| 499 | "-fpic" \ |
| 500 | ] \ |
| 501 | [list \ |
| 502 | "Run ifunc-main (-z now)" \ |
| 503 | "-Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \ |
| 504 | "" \ |
| 505 | { ifunc-main.c } \ |
| 506 | "ifunc-mainn" \ |
| 507 | "ifunc-main.out" \ |
| 508 | ] \ |
| 509 | [list \ |
| 510 | "Run ifunc-main with PIE (-z now)" \ |
| 511 | "-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \ |
| 512 | "" \ |
| 513 | { ifunc-main.c } \ |
| 514 | "ifunc-mainpn" \ |
| 515 | "ifunc-main.out" \ |
| 516 | "-fpie" \ |
| 517 | ] \ |
| 518 | ] |
| 519 | |
| 520 | # Run-time tests which require working ifunc attribute support. |
| 521 | if { ![check_ifunc_attribute_available] } { |
| 522 | return |
| 523 | } |
| 524 | |
| 525 | run_cc_link_tests [list \ |
| 526 | [list \ |
| 527 | "Build pr18808a.o" \ |
| 528 | "" \ |
| 529 | "" \ |
| 530 | { pr18808a.c } \ |
| 531 | "" \ |
| 532 | "" \ |
| 533 | ] \ |
| 534 | [list \ |
| 535 | "Build libpr18808.so" \ |
| 536 | "-shared" \ |
| 537 | "-fPIC -O2 -g" \ |
| 538 | { pr18808b.c } \ |
| 539 | {} \ |
| 540 | "libpr18808.so" \ |
| 541 | ] \ |
| 542 | [list \ |
| 543 | "Build libpr18808n.so" \ |
| 544 | "-shared -Wl,-z,now" \ |
| 545 | "-fPIC -O2 -g" \ |
| 546 | { pr18808b.c } \ |
| 547 | {} \ |
| 548 | "libpr18808n.so" \ |
| 549 | ] \ |
| 550 | [list \ |
| 551 | "Build pr18841a.o" \ |
| 552 | "" \ |
| 553 | "" \ |
| 554 | { pr18841a.c } \ |
| 555 | "" \ |
| 556 | "" \ |
| 557 | ] \ |
| 558 | [list \ |
| 559 | "Build libpr18841b.so" \ |
| 560 | "-shared" \ |
| 561 | "-fPIC -O0 -g" \ |
| 562 | { pr18841b.c } \ |
| 563 | {} \ |
| 564 | "libpr18841b.so" \ |
| 565 | ] \ |
| 566 | [list \ |
| 567 | "Build libpr18841c.so" \ |
| 568 | "-shared" \ |
| 569 | "-fPIC -O0 -g" \ |
| 570 | { pr18841c.c } \ |
| 571 | {} \ |
| 572 | "libpr18841c.so" \ |
| 573 | ] \ |
| 574 | [list \ |
| 575 | "Build libpr18841bn.so" \ |
| 576 | "-Wl,-z,now -shared" \ |
| 577 | "-fPIC -O0 -g" \ |
| 578 | { pr18841b.c } \ |
| 579 | {} \ |
| 580 | "libpr18841bn.so" \ |
| 581 | ] \ |
| 582 | [list \ |
| 583 | "Build libpr18841cn.so" \ |
| 584 | "-shared" \ |
| 585 | "-Wl,-z,now -fPIC -O0 -g" \ |
| 586 | { pr18841c.c } \ |
| 587 | {} \ |
| 588 | "libpr18841cn.so" \ |
| 589 | ] \ |
| 590 | [list \ |
| 591 | "Build libpr23169a.so" \ |
| 592 | "-shared" \ |
| 593 | "-fPIC -O2 -g" \ |
| 594 | { pr23169a.c } \ |
| 595 | {} \ |
| 596 | "libpr23169a.so" \ |
| 597 | ] \ |
| 598 | [list \ |
| 599 | "Build libpr23169b.so" \ |
| 600 | "-shared -Wl,-z,now" \ |
| 601 | "-fPIC -O2 -g" \ |
| 602 | { pr23169a.c } \ |
| 603 | {} \ |
| 604 | "libpr23169b.so" \ |
| 605 | ] \ |
| 606 | [list \ |
| 607 | "Build pr23169a" \ |
| 608 | "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \ |
| 609 | "$NOPIE_CFLAGS -O2 -g" \ |
| 610 | { pr23169b.c pr23169c.c } \ |
| 611 | {{readelf {--dyn-syms} pr23169a.rd} \ |
| 612 | {readelf {-r -W} pr23169b.rd}} \ |
| 613 | "pr23169a" \ |
| 614 | ] \ |
| 615 | [list \ |
| 616 | "Build pr23169b" \ |
| 617 | "-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \ |
| 618 | "-fPIE -O2 -g" \ |
| 619 | { pr23169b.c pr23169c.c } \ |
| 620 | {{readelf {--dyn-syms} pr23169c.rd} \ |
| 621 | {readelf {-r -W} pr23169b.rd}} \ |
| 622 | "pr23169b" \ |
| 623 | ] \ |
| 624 | [list \ |
| 625 | "Build pr23169c" \ |
| 626 | "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \ |
| 627 | "-fPIE -O2 -g" \ |
| 628 | { pr23169b.c pr23169c.c } \ |
| 629 | {{readelf {--dyn-syms} pr23169c.rd} \ |
| 630 | {readelf {-r -W} pr23169b.rd}} \ |
| 631 | "pr23169c" \ |
| 632 | ] \ |
| 633 | [list \ |
| 634 | "Build pr23169d" \ |
| 635 | "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \ |
| 636 | "$NOPIE_CFLAGS -O2 -g" \ |
| 637 | { pr23169b.c pr23169c.c } \ |
| 638 | {{readelf {--dyn-syms} pr23169a.rd} \ |
| 639 | {readelf {-r -W} pr23169b.rd}} \ |
| 640 | "pr23169d" \ |
| 641 | ] \ |
| 642 | [list \ |
| 643 | "Build pr23169e" \ |
| 644 | "-pie -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \ |
| 645 | "-fPIE -O2 -g" \ |
| 646 | { pr23169b.c pr23169c.c } \ |
| 647 | {{readelf {--dyn-syms} pr23169c.rd} \ |
| 648 | {readelf {-r -W} pr23169b.rd}} \ |
| 649 | "pr23169e" \ |
| 650 | ] \ |
| 651 | [list \ |
| 652 | "Build pr23169f" \ |
| 653 | "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \ |
| 654 | "-fPIE -O2 -g" \ |
| 655 | { pr23169b.c pr23169c.c } \ |
| 656 | {{readelf {--dyn-syms} pr23169c.rd} \ |
| 657 | {readelf {-r -W} pr23169b.rd}} \ |
| 658 | "pr23169f" \ |
| 659 | ] \ |
| 660 | ] |
| 661 | |
| 662 | run_ld_link_exec_tests [list \ |
| 663 | [list \ |
| 664 | "Run pr18808" \ |
| 665 | "-Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808.so" \ |
| 666 | "" \ |
| 667 | { dummy.c } \ |
| 668 | "pr18808" \ |
| 669 | "pr18808.out" \ |
| 670 | ] \ |
| 671 | [list \ |
| 672 | "Run pr18808 (-z now)" \ |
| 673 | "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808n.so" \ |
| 674 | "" \ |
| 675 | { dummy.c } \ |
| 676 | "pr18808n" \ |
| 677 | "pr18808.out" \ |
| 678 | ] \ |
| 679 | [list \ |
| 680 | "Run pr18841 with libpr18841b.so" \ |
| 681 | "-Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841b.so" \ |
| 682 | "" \ |
| 683 | { dummy.c } \ |
| 684 | "pr18841b" \ |
| 685 | "pr18841.out" \ |
| 686 | ] \ |
| 687 | [list \ |
| 688 | "Run pr18841 with libpr18841c.so" \ |
| 689 | "-Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841c.so" \ |
| 690 | "" \ |
| 691 | { dummy.c } \ |
| 692 | "pr18841c" \ |
| 693 | "pr18841.out" \ |
| 694 | ] \ |
| 695 | [list \ |
| 696 | "Run pr18841 with libpr18841bn.so (-z now)" \ |
| 697 | "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841bn.so" \ |
| 698 | "" \ |
| 699 | { dummy.c } \ |
| 700 | "pr18841bn" \ |
| 701 | "pr18841.out" \ |
| 702 | ] \ |
| 703 | [list \ |
| 704 | "Run pr18841 with libpr18841cn.so (-z now)" \ |
| 705 | "-Wl,-z,now -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841cn.so" \ |
| 706 | "" \ |
| 707 | { dummy.c } \ |
| 708 | "pr18841cn" \ |
| 709 | "pr18841.out" \ |
| 710 | ] \ |
| 711 | ] |
| 712 | |
| 713 | # The pr23169 testcase is not valid. In general, you can't call ifunc |
| 714 | # resolvers in another binary unless you know what you're doing. In |
| 715 | # particular you must ensure that the binary containing the resolver |
| 716 | # is relocated before the resolver is called (for example, the |
| 717 | # function addresses returned by the resolver may be loaded from the |
| 718 | # GOT). |
| 719 | # That does not happen for the pr23169 testcase where the resolver is |
| 720 | # in the executable (which is relocated last by ld.so). |
| 721 | if { [isnative] |
| 722 | && !([istarget "powerpc-*-*"] |
| 723 | || [istarget "aarch64*-*-*"] |
| 724 | || [istarget "sparc*-*-*"]) } { |
| 725 | run_ld_link_exec_tests [list \ |
| 726 | [list \ |
| 727 | "Run pr23169a" \ |
| 728 | "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \ |
| 729 | "" \ |
| 730 | { pr23169b.c pr23169c.c } \ |
| 731 | "pr23169a" \ |
| 732 | "pass.out" \ |
| 733 | "$NOPIE_CFLAGS -O2 -g" \ |
| 734 | ] \ |
| 735 | [list \ |
| 736 | "Run pr23169b" \ |
| 737 | "-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \ |
| 738 | "" \ |
| 739 | { pr23169b.c pr23169c.c } \ |
| 740 | "pr23169b" \ |
| 741 | "pass.out" \ |
| 742 | "-fPIE -O2 -g" \ |
| 743 | ] \ |
| 744 | [list \ |
| 745 | "Run pr23169c" \ |
| 746 | "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \ |
| 747 | "" \ |
| 748 | { pr23169b.c pr23169c.c } \ |
| 749 | "pr23169c" \ |
| 750 | "pass.out" \ |
| 751 | "-fPIE -O2 -g" \ |
| 752 | ] \ |
| 753 | [list \ |
| 754 | "Run pr23169d" \ |
| 755 | "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \ |
| 756 | "" \ |
| 757 | { pr23169b.c pr23169c.c } \ |
| 758 | "pr23169d" \ |
| 759 | "pass.out" \ |
| 760 | "$NOPIE_CFLAGS -O2 -g" \ |
| 761 | ] \ |
| 762 | [list \ |
| 763 | "Run pr23169e" \ |
| 764 | "-pie -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \ |
| 765 | "" \ |
| 766 | { pr23169b.c pr23169c.c } \ |
| 767 | "pr23169e" \ |
| 768 | "pass.out" \ |
| 769 | "-fPIE -O2 -g" \ |
| 770 | ] \ |
| 771 | [list \ |
| 772 | "Run pr23169f" \ |
| 773 | "$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \ |
| 774 | "" \ |
| 775 | { pr23169b.c pr23169c.c } \ |
| 776 | "pr23169f" \ |
| 777 | "pass.out" \ |
| 778 | "-fPIE -O2 -g" \ |
| 779 | ] \ |
| 780 | ] |
| 781 | if { $STATIC_PIE_LDFLAGS != "" } then { |
| 782 | run_ld_link_exec_tests [list \ |
| 783 | [list \ |
| 784 | "Run pr23169g" \ |
| 785 | "$STATIC_PIE_LDFLAGS" \ |
| 786 | "" \ |
| 787 | { pr23169a.c pr23169b.c pr23169c.c } \ |
| 788 | "pr23169g" \ |
| 789 | "pass.out" \ |
| 790 | "-fPIE -O2 -g" \ |
| 791 | ] \ |
| 792 | ] |
| 793 | } |
| 794 | } |
| 795 | |
| 796 | set ASFLAGS "$saved_ASFLAGS" |