src/trusted/validator_x86/testdata/64/tests_from_pydfa.test - Issue 625923004: Delete old x86 validator.

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Issue 625923004: Delete old x86 validator. (Closed) Base URL: svn://svn.chromium.org/native_client/trunk/src/native_client

Patch Set: rebase master Created 6 years, 2 months ago

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1 @hex:

2 # Originally these tests came from

3 # https://github.com/mseaborn/x86-decoder/blob/x86-64/validator_test.py

4

5 # Check some simple allowed instructions.

6 # nop

7 90

8 # hlt

9 f4

10 # mov $0x12345678, %rax

11 48 c7 c0 78 56 34 12

12 # mov $0x1234567812345678, %rax

13 48 b8 78 56 34 12 78 56 34 12

14 @rval:

15 VALIDATOR: Checking jump targets: 0 to 13

16 VALIDATOR: Checking that basic blocks are aligned

17 * <input> is safe *

18 @dis:

19 0000000000000000: 90 nop

20 0000000000000001: f4 hlt

21 0000000000000002: 48 c7 c0 78 56 34 12 mov %rax, 0x123 45678

22 0000000000000009: 48 b8 78 56 34 12 78 56 34 12 mov %rax, 0x123 4567812345678

23 @rdfa_output:

24 return code: 0

25 ----------------------------------------------------------------------

26 @hex:

27 # Check a disallowed instruction.

28 # nop

29 90

30 # int $0x80

31 cd 80

32 @rval:

33 VALIDATOR: 0000000000000001: cd 80 int 0x80

34 VALIDATOR: ERROR: This instruction has been marked illegal by Native Client

35 VALIDATOR: Checking jump targets: 0 to 3

36 VALIDATOR: Checking that basic blocks are aligned

37 * <input> IS UNSAFE *

38 @dis:

39 0000000000000000: 90 nop

40 0000000000000001: cd 80 int 0x80

41 @rdfa_output:

42 1: [0] unrecognized instruction

43 return code: 1

44 ----------------------------------------------------------------------

45 @hex:

46 # ret

47 c3

48 @rval:

49 VALIDATOR: 0000000000000000: c3 ret

50 VALIDATOR: ERROR: This instruction has been marked illegal by Native Client

51 VALIDATOR: 0000000000000000: c3 ret

52 VALIDATOR: ERROR: Illegal assignment to RSP

53 VALIDATOR: Checking jump targets: 0 to 1

54 VALIDATOR: Checking that basic blocks are aligned

55 * <input> IS UNSAFE *

56 @dis:

57 0000000000000000: c3 ret

58 @rdfa_output:

59 0: [0] unrecognized instruction

60 return code: 1

61 ----------------------------------------------------------------------

62 @hex:

63 # syscall

64 0f 05

65 @rval:

66 VALIDATOR: 0000000000000000: 0f 05 sysc all

67 VALIDATOR: ERROR: This instruction has been marked illegal by Native Client

68 VALIDATOR: 0000000000000000: 0f 05 sysc all

69 VALIDATOR: ERROR: System instructions are not allowed by Native Client

70 VALIDATOR: Checking jump targets: 0 to 2

71 VALIDATOR: Checking that basic blocks are aligned

72 * <input> IS UNSAFE *

73 @dis:

74 0000000000000000: 0f 05 syscall

75 @rdfa_output:

76 0: [0] unrecognized instruction

77 return code: 1

78 ----------------------------------------------------------------------

79 @hex:

80 # mov $0x1234567812345678, %rax

81 48 b8 78 56 34 12 78 56 34 12

82 # mov $0x1234567812345678, %rax

83 48 b8 78 56 34 12 78 56 34 12

84 # mov $0x1234567812345678, %rax

85 48 b8 78 56 34 12 78 56 34 12

86 # mov $0x1234567812345678, %rax

87 48 b8 78 56 34 12 78 56 34 12

88 @rval:

89 VALIDATOR: Checking jump targets: 0 to 28

90 VALIDATOR: Checking that basic blocks are aligned

91 VALIDATOR: ERROR: 20: Bad basic block alignment.

92 * <input> IS UNSAFE *

93 @dis:

94 0000000000000000: 48 b8 78 56 34 12 78 56 34 12 mov %rax, 0x123 4567812345678

95 000000000000000a: 48 b8 78 56 34 12 78 56 34 12 mov %rax, 0x123 4567812345678

96 0000000000000014: 48 b8 78 56 34 12 78 56 34 12 mov %rax, 0x123 4567812345678

97 000000000000001e: 48 b8 78 56 34 12 78 56 34 12 mov %rax, 0x123 4567812345678

98 @rdfa_output:

99 1e: [0] unrecognized instruction

100 20: [0] direct jump out of range

101 24: [0] direct jump out of range

102 return code: 1

103 @validators_disagree:

104 Because RDFA validator recovered after bundle boundary.

105 ----------------------------------------------------------------------

106 @hex:

107 # Forwards and backwards jumps.

108 # nop

109 90

110 # jmp .+6

111 eb 04

112 # jmp .+0

113 eb fe

114 # jmp .-2

115 eb fc

116 # jmp .-4

117 eb fa

118 @rval:

119 VALIDATOR: Checking jump targets: 0 to 9

120 VALIDATOR: Checking that basic blocks are aligned

121 * <input> is safe *

122 @dis:

123 0000000000000000: 90 nop

124 0000000000000001: eb 04 jmp 0x7

125 0000000000000003: eb fe jmp 0x3

126 0000000000000005: eb fc jmp 0x3

127 0000000000000007: eb fa jmp 0x3

128 @rdfa_output:

129 return code: 0

130 ----------------------------------------------------------------------

131 @hex:

132 # Out-of-range unaligned jump.

133 # jmp .-1

134 eb fd

135 @rval:

136 VALIDATOR: 0000000000000000: eb fd jmp 0xffffffffffffffff

137 VALIDATOR: ERROR: Instruction jumps to bad address

138 VALIDATOR: Checking jump targets: 0 to 2

139 VALIDATOR: Checking that basic blocks are aligned

140 * <input> IS UNSAFE *

141 @dis:

142 0000000000000000: eb fd jmp 0xfffffffff fffffff

143 @rdfa_output:

144 0: [0] direct jump out of range

145 return code: 1

146 ----------------------------------------------------------------------

147 @hex:

148 # Out-of-range unaligned jump.

149 # jmp .+33

150 eb 1f

151 @rval:

152 VALIDATOR: 0000000000000000: eb 1f jmp 0x21

153 VALIDATOR: ERROR: Instruction jumps to bad address

154 VALIDATOR: Checking jump targets: 0 to 2

155 VALIDATOR: Checking that basic blocks are aligned

156 * <input> IS UNSAFE *

157 @dis:

158 0000000000000000: eb 1f jmp 0x21

159 @rdfa_output:

160 0: [0] direct jump out of range

161 return code: 1

162 ----------------------------------------------------------------------

163 @hex:

164 # Jump into instruction.

165 # mov $0x1234567812345678, %rax

166 48 b8 78 56 34 12 78 56 34 12

167 # jmp .-5

168 eb f9

169 @rval:

170 VALIDATOR: Checking jump targets: 0 to c

171 VALIDATOR: ERROR: 5: Bad jump target

172 VALIDATOR: Checking that basic blocks are aligned

173 * <input> IS UNSAFE *

174 @dis:

175 0000000000000000: 48 b8 78 56 34 12 78 56 34 12 mov %rax, 0x123 4567812345678

176 000000000000000a: eb f9 jmp 0x5

177 @rdfa_output:

178 a: [0] bad jump target

179 return code: 1

180 @validators_disagree:

181 Difference in jump reporting.

182 ----------------------------------------------------------------------

183 @hex:

184 # Unmasked indirect jumps are disallowed.

185 # jmp *%rax

186 ff e0

187 @rval:

188 VALIDATOR: 0000000000000000: ff e0 jmp %rax

189 VALIDATOR: ERROR: Invalid indirect jump

190 VALIDATOR: Checking jump targets: 0 to 2

191 VALIDATOR: Checking that basic blocks are aligned

192 * <input> IS UNSAFE *

193 @dis:

194 0000000000000000: ff e0 jmp %rax

195 @rdfa_output:

196 0: [0] unrecognized instruction

197 return code: 1

198 ----------------------------------------------------------------------

199 @hex:

200 # jmp *(%rax)

201 ff 20

202 @rval:

203 VALIDATOR: 0000000000000000: ff 20 jmp [%rax]

204 VALIDATOR: ERROR: Invalid base register in memory offset

205 VALIDATOR: 0000000000000000: ff 20 jmp [%rax]

206 VALIDATOR: ERROR: Jump not native client compliant

207 VALIDATOR: Checking jump targets: 0 to 2

208 VALIDATOR: Checking that basic blocks are aligned

209 * <input> IS UNSAFE *

210 @dis:

211 0000000000000000: ff 20 jmp [%rax]

212 @rdfa_output:

213 0: [0] unrecognized instruction

214 return code: 1

215 ----------------------------------------------------------------------

216 @hex:

217 # call *%rax

218 ff d0

219 @rval:

220 VALIDATOR: 0000000000000000: ff d0 call %rax

221 VALIDATOR: ERROR: Invalid indirect jump

222 VALIDATOR: 0000000000000000: ff d0 call %rax

223 VALIDATOR: WARNING: Bad call alignment, return pc = 2

224 VALIDATOR: Checking jump targets: 0 to 2

225 VALIDATOR: Checking that basic blocks are aligned

226 * <input> IS UNSAFE *

227 @dis:

228 0000000000000000: ff d0 call %rax

229 @rdfa_output:

230 0: [0] unrecognized instruction

231 return code: 1

232 ----------------------------------------------------------------------

233 @hex:

234 # call *(%rax)

235 ff 10

236 @rval:

237 VALIDATOR: 0000000000000000: ff 10 call [%rax]

238 VALIDATOR: ERROR: Invalid base register in memory offset

239 VALIDATOR: 0000000000000000: ff 10 call [%rax]

240 VALIDATOR: ERROR: Jump not native client compliant

241 VALIDATOR: 0000000000000000: ff 10 call [%rax]

242 VALIDATOR: WARNING: Bad call alignment, return pc = 2

243 VALIDATOR: Checking jump targets: 0 to 2

244 VALIDATOR: Checking that basic blocks are aligned

245 * <input> IS UNSAFE *

246 @dis:

247 0000000000000000: ff 10 call [%rax]

248 @rdfa_output:

249 0: [0] unrecognized instruction

250 return code: 1

251 ----------------------------------------------------------------------

252 @hex:

253 # Masking instructions on their own are allowed.

254 # and $~31, %eax

255 83 e0 e0

256 # and $~31, %ebx

257 83 e3 e0

258 # and $~31, %rax

259 48 83 e0 e0

260 # and $~31, %rbx

261 48 83 e3 e0

262 @rval:

263 VALIDATOR: Checking jump targets: 0 to e

264 VALIDATOR: Checking that basic blocks are aligned

265 * <input> is safe *

266 @dis:

267 0000000000000000: 83 e0 e0 and %eax, 0xe0

268 0000000000000003: 83 e3 e0 and %ebx, 0xe0

269 0000000000000006: 48 83 e0 e0 and %rax, 0xe0

270 000000000000000a: 48 83 e3 e0 and %rbx, 0xe0

271 @rdfa_output:

272 return code: 0

273 ----------------------------------------------------------------------

274 @hex:

275 # and $~31, %eax

276 83 e0 e0

277 # add %r15, %rax

278 4c 01 f8

279

280 # and $~31, %ebx

281 83 e3 e0

282 # add %r15, %rbx

283 4c 01 fb

284 @rval:

285 VALIDATOR: Checking jump targets: 0 to c

286 VALIDATOR: Checking that basic blocks are aligned

287 * <input> is safe *

288 @dis:

289 0000000000000000: 83 e0 e0 and %eax, 0xe0

290 0000000000000003: 4c 01 f8 add %rax, %r15

291 0000000000000006: 83 e3 e0 and %ebx, 0xe0

292 0000000000000009: 4c 01 fb add %rbx, %r15

293 @rdfa_output:

294 return code: 0

295 ----------------------------------------------------------------------

296 @hex:

297 # Masked indirect jumps are allowed.

298 # and $~31, %eax

299 83 e0 e0 \\

300 # add %r15, %rax

301 4c 01 f8 \\

302 # jmp *%rax

303 ff e0

304 @rval:

305 VALIDATOR: Checking jump targets: 0 to 8

306 VALIDATOR: Checking that basic blocks are aligned

307 * <input> is safe *

308 @dis:

309 0000000000000000: 83 e0 e0 and %eax, 0xe0

310 0000000000000003: 4c 01 f8 add %rax, %r15

311 0000000000000006: ff e0 jmp %rax

312 @rdfa_output:

313 return code: 0

314 ----------------------------------------------------------------------

315 @hex:

316 # and $~31, %ebx

317 83 e3 e0 \\

318 # add %r15, %rbx

319 4c 01 fb \\

320 # call *%rbx

321 ff d3

322 @rval:

323 VALIDATOR: 0000000000000006: ff d3 call %rbx

324 VALIDATOR: WARNING: Bad call alignment, return pc = 8

325 VALIDATOR: Checking jump targets: 0 to 8

326 VALIDATOR: Checking that basic blocks are aligned

327 * <input> is safe *

328 @dis:

329 0000000000000000: 83 e3 e0 and %ebx, 0xe0

330 0000000000000003: 4c 01 fb add %rbx, %r15

331 0000000000000006: ff d3 call %rbx

332 @rdfa_output:

333 return code: 0

334 ----------------------------------------------------------------------

335 @hex:

336 # The registers must match up for the mask and the jump.

337 # and $~31, %ebx

338 83 e3 e0

339 # add %r15, %rax

340 4c 01 f8

341 # jmp *%rax

342 ff e0

343 @rval:

344 VALIDATOR: 0000000000000006: ff e0 jmp %rax

345 VALIDATOR: ERROR: Invalid indirect jump

346 VALIDATOR: Checking jump targets: 0 to 8

347 VALIDATOR: Checking that basic blocks are aligned

348 * <input> IS UNSAFE *

349 @dis:

350 0000000000000000: 83 e3 e0 and %ebx, 0xe0

351 0000000000000003: 4c 01 f8 add %rax, %r15

352 0000000000000006: ff e0 jmp %rax

353 @rdfa_output:

354 6: [0] unrecognized instruction

355 return code: 1

356 @validators_disagree:

357 Difference in error reporting.

358 ----------------------------------------------------------------------

359 @hex:

360 # and $~31, %eax

361 83 e0 e0

362 # add %r15, %rbx

363 4c 01 fb

364 # jmp *%rax

365 ff e0

366 @rval:

367 VALIDATOR: 0000000000000006: ff e0 jmp %rax

368 VALIDATOR: ERROR: Invalid indirect jump

369 VALIDATOR: Checking jump targets: 0 to 8

370 VALIDATOR: Checking that basic blocks are aligned

371 * <input> IS UNSAFE *

372 @dis:

373 0000000000000000: 83 e0 e0 and %eax, 0xe0

374 0000000000000003: 4c 01 fb add %rbx, %r15

375 0000000000000006: ff e0 jmp %rax

376 @rdfa_output:

377 6: [0] unrecognized instruction

378 return code: 1

379 @validators_disagree:

380 Difference in error reporting.

381 ----------------------------------------------------------------------

382 @hex:

383 # and $~31, %eax

384 83 e0 e0

385 # add %r15, %rax

386 4c 01 f8

387 # jmp *%rbx

388 ff e3

389 @rval:

390 VALIDATOR: 0000000000000006: ff e3 jmp %rbx

391 VALIDATOR: ERROR: Invalid indirect jump

392 VALIDATOR: Checking jump targets: 0 to 8

393 VALIDATOR: Checking that basic blocks are aligned

394 * <input> IS UNSAFE *

395 @dis:

396 0000000000000000: 83 e0 e0 and %eax, 0xe0

397 0000000000000003: 4c 01 f8 add %rax, %r15

398 0000000000000006: ff e3 jmp %rbx

399 @rdfa_output:

400 6: [0] unrecognized instruction

401 return code: 1

402 @validators_disagree:

403 Difference in error reporting.

404 ----------------------------------------------------------------------

405 @hex:

406 # and $~31, %eax

407 83 e0 e0

408 # add %r15, %rbx

409 4c 01 fb

410 # jmp *%rbx

411 ff e3

412 @rval:

413 VALIDATOR: 0000000000000006: ff e3 jmp %rbx

414 VALIDATOR: ERROR: Invalid indirect jump

415 VALIDATOR: Checking jump targets: 0 to 8

416 VALIDATOR: Checking that basic blocks are aligned

417 * <input> IS UNSAFE *

418 @dis:

419 0000000000000000: 83 e0 e0 and %eax, 0xe0

420 0000000000000003: 4c 01 fb add %rbx, %r15

421 0000000000000006: ff e3 jmp %rbx

422 @rdfa_output:

423 6: [0] unrecognized instruction

424 return code: 1

425 @validators_disagree:

426 Difference in error reporting.

427 ----------------------------------------------------------------------

428 @hex:

429 # and $~31, %ebx

430 83 e3 e0

431 # add %r15, %rbx

432 4c 01 fb

433 # jmp *%rax

434 ff e0

435 @rval:

436 VALIDATOR: 0000000000000006: ff e0 jmp %rax

437 VALIDATOR: ERROR: Invalid indirect jump

438 VALIDATOR: Checking jump targets: 0 to 8

439 VALIDATOR: Checking that basic blocks are aligned

440 * <input> IS UNSAFE *

441 @dis:

442 0000000000000000: 83 e3 e0 and %ebx, 0xe0

443 0000000000000003: 4c 01 fb add %rbx, %r15

444 0000000000000006: ff e0 jmp %rax

445 @rdfa_output:

446 6: [0] unrecognized instruction

447 return code: 1

448 @validators_disagree:

449 Difference in error reporting.

450 ----------------------------------------------------------------------

451 @hex:

452 # The mask and the jump must be adjacent.

453 # and $~31, %eax

454 83 e0 e0

455 # nop

456 90

457 # add %r15, %rax

458 4c 01 f8

459 # jmp *%rax

460 ff e0

461 @rval:

462 VALIDATOR: 0000000000000007: ff e0 jmp %rax

463 VALIDATOR: ERROR: Invalid indirect jump

464 VALIDATOR: Checking jump targets: 0 to 9

465 VALIDATOR: Checking that basic blocks are aligned

466 * <input> IS UNSAFE *

467 @dis:

468 0000000000000000: 83 e0 e0 and %eax, 0xe0

469 0000000000000003: 90 nop

470 0000000000000004: 4c 01 f8 add %rax, %r15

471 0000000000000007: ff e0 jmp %rax

472 @rdfa_output:

473 7: [0] unrecognized instruction

474 return code: 1

475 ----------------------------------------------------------------------

476 @hex:

477 # and $~31, %eax

478 83 e0 e0

479 # add %r15, %rax

480 4c 01 f8

481 # nop

482 90

483 # jmp *%rax

484 ff e0

485 @rval:

486 VALIDATOR: 0000000000000007: ff e0 jmp %rax

487 VALIDATOR: ERROR: Invalid indirect jump

488 VALIDATOR: Checking jump targets: 0 to 9

489 VALIDATOR: Checking that basic blocks are aligned

490 * <input> IS UNSAFE *

491 @dis:

492 0000000000000000: 83 e0 e0 and %eax, 0xe0

493 0000000000000003: 4c 01 f8 add %rax, %r15

494 0000000000000006: 90 nop

495 0000000000000007: ff e0 jmp %rax

496 @rdfa_output:

497 7: [0] unrecognized instruction

498 return code: 1

499 ----------------------------------------------------------------------

500 @hex:

501 # Jumping into the middle of the superinstruction must be rejected.

502 # and $~31, %eax

503 83 e0 e0

504 # add %r15, %rax

505 4c 01 f8

506 # jmp *%rax

507 ff e0

508 # jmp .-2

509 eb fc

510 @rval:

511 VALIDATOR: Checking jump targets: 0 to a

512 VALIDATOR: ERROR: 6: Bad jump target

513 VALIDATOR: Checking that basic blocks are aligned

514 * <input> IS UNSAFE *

515 @dis:

516 0000000000000000: 83 e0 e0 and %eax, 0xe0

517 0000000000000003: 4c 01 f8 add %rax, %r15

518 0000000000000006: ff e0 jmp %rax

519 0000000000000008: eb fc jmp 0x6

520 @rdfa_output:

521 8: [0] bad jump target

522 return code: 1

523 @validators_disagree:

524 Difference in jump reporting.

525 ----------------------------------------------------------------------

526 @hex:

527 # and $~31, %eax

528 83 e0 e0

529 # add %r15, %rax

530 4c 01 f8

531 # jmp *%rax

532 ff e0

533 # jmp .-5

534 eb f9

535 @rval:

536 VALIDATOR: Checking jump targets: 0 to a

537 VALIDATOR: ERROR: 3: Bad jump target

538 VALIDATOR: Checking that basic blocks are aligned

539 * <input> IS UNSAFE *

540 @dis:

541 0000000000000000: 83 e0 e0 and %eax, 0xe0

542 0000000000000003: 4c 01 f8 add %rax, %r15

543 0000000000000006: ff e0 jmp %rax

544 0000000000000008: eb f9 jmp 0x3

545 @rdfa_output:

546 8: [0] bad jump target

547 return code: 1

548 @validators_disagree:

549 TODO: explain this

550 Difference in jump reporting.

551 ----------------------------------------------------------------------

552 @hex:

553 # Read-only access to special registers is allowed.

554 # push %rax

555 50

556 # push %rbp

557 55

558 # push %rsp

559 54

560 # push %r15

561 41 57

562 # mov %rsp, %rax

563 48 89 e0

564 @rval:

565 VALIDATOR: Checking jump targets: 0 to 8

566 VALIDATOR: Checking that basic blocks are aligned

567 * <input> is safe *

568 @dis:

569 0000000000000000: 50 push %rax

570 0000000000000001: 55 push %rbp

571 0000000000000002: 54 push %rsp

572 0000000000000003: 41 57 push %r15

573 0000000000000005: 48 89 e0 mov %rax, %rsp

574 @rdfa_output:

575 return code: 0

576 ----------------------------------------------------------------------

577 @hex:

578 # Write access to special registers is not allowed.

579 # pop %rax

580 58

581 @rval:

582 VALIDATOR: Checking jump targets: 0 to 1

583 VALIDATOR: Checking that basic blocks are aligned

584 * <input> is safe *

585 @dis:

586 0000000000000000: 58 pop %rax

587 @rdfa_output:

588 return code: 0

589 ----------------------------------------------------------------------

590 @hex:

591 # pop %rbp

592 5d

593 @rval:

594 VALIDATOR: 0000000000000000: 5d pop %rbp

595 VALIDATOR: ERROR: Illegal change to register RBP

596 VALIDATOR: Checking jump targets: 0 to 1

597 VALIDATOR: Checking that basic blocks are aligned

598 * <input> IS UNSAFE *

599 @dis:

600 0000000000000000: 5d pop %rbp

601 @rdfa_output:

602 0: [0] error - %bpl or %bp is changed

603 return code: 1

604 ----------------------------------------------------------------------

605 @hex:

606 # pop %rsp

607 5c

608 @rval:

609 VALIDATOR: 0000000000000000: 5c pop %rsp

610 VALIDATOR: ERROR: Illegal assignment to RSP

611 VALIDATOR: Checking jump targets: 0 to 1

612 VALIDATOR: Checking that basic blocks are aligned

613 * <input> IS UNSAFE *

614 @dis:

615 0000000000000000: 5c pop %rsp

616 @rdfa_output:

617 0: [0] error - %spl or %sp is changed

618 return code: 1

619 ----------------------------------------------------------------------

620 @hex:

621 # pop %r15

622 41 5f

623 @rval:

624 VALIDATOR: 0000000000000000: 41 5f pop %r15

625 VALIDATOR: ERROR: Illegal to change the value of register RegR15

626 VALIDATOR: Checking jump targets: 0 to 2

627 VALIDATOR: Checking that basic blocks are aligned

628 * <input> IS UNSAFE *

629 @dis:

630 0000000000000000: 41 5f pop %r15

631 @rdfa_output:

632 0: [0] error - %r15 is changed

633 return code: 1

634 ----------------------------------------------------------------------

635 @hex:

636 # Memory accesses.

637 # mov %eax, %eax

638 89 c0 \\

639 # mov (%r15, %rax), %ebx

640 41 8b 1c 07

641 @rval:

642 VALIDATOR: Checking jump targets: 0 to 6

643 VALIDATOR: Checking that basic blocks are aligned

644 * <input> is safe *

645 @dis:

646 0000000000000000: 89 c0 mov %eax, %eax

647 0000000000000002: 41 8b 1c 07 mov %ebx, [%r15 +%rax*1]

648 @rdfa_output:

649 return code: 0

650 ----------------------------------------------------------------------

651 @hex:

652 # Test for a top-bit-set register.

653 # mov %r12d, %r12d

654 45 89 e4 \\

655 # mov (%r15, %r12), %ebx

656 43 8b 1c 27

657 @rval:

658 VALIDATOR: Checking jump targets: 0 to 7

659 VALIDATOR: Checking that basic blocks are aligned

660 * <input> is safe *

661 @dis:

662 0000000000000000: 45 89 e4 mov %r12d, %r12 d

663 0000000000000003: 43 8b 1c 27 mov %ebx, [%r15 +%r12*1]

664 @rdfa_output:

665 return code: 0

666 ----------------------------------------------------------------------

667 @hex:

668 # Check %edi and %esi because the first 'mov' also begins superinstructions.

669 # mov %edi, %edi

670 89 ff \\

671 # mov (%r15, %rdi), %ebx

672 41 8b 1c 3f

673 @rval:

674 VALIDATOR: Checking jump targets: 0 to 6

675 VALIDATOR: Checking that basic blocks are aligned

676 * <input> is safe *

677 @dis:

678 0000000000000000: 89 ff mov %edi, %edi

679 0000000000000002: 41 8b 1c 3f mov %ebx, [%r15 +%rdi*1]

680 @rdfa_output:

681 return code: 0

682 ----------------------------------------------------------------------

683 @hex:

684 # mov %esi, %esi

685 89 f6 \\

686 # mov (%r15, %rsi), %ebx

687 41 8b 1c 37

688 @rval:

689 VALIDATOR: Checking jump targets: 0 to 6

690 VALIDATOR: Checking that basic blocks are aligned

691 * <input> is safe *

692 @dis:

693 0000000000000000: 89 f6 mov %esi, %esi

694 0000000000000002: 41 8b 1c 37 mov %ebx, [%r15 +%rsi*1]

695 @rdfa_output:

696 return code: 0

697 ----------------------------------------------------------------------

698 @hex:

699 # Check mask on its own.

700 # mov %eax, %eax

701 89 c0

702 @rval:

703 VALIDATOR: Checking jump targets: 0 to 2

704 VALIDATOR: Checking that basic blocks are aligned

705 * <input> is safe *

706 @dis:

707 0000000000000000: 89 c0 mov %eax, %eax

708 @rdfa_output:

709 return code: 0

710 ----------------------------------------------------------------------

711 @hex:

712 # mov (%r15, %rax), %ebx

713 41 8b 1c 07

714 @rval:

715 VALIDATOR: 0000000000000000: 41 8b 1c 07 mov %ebx, [%r15+%rax*1]

716 VALIDATOR: ERROR: Invalid index register in memory offset

717 VALIDATOR: Checking jump targets: 0 to 4

718 VALIDATOR: Checking that basic blocks are aligned

719 * <input> IS UNSAFE *

720 @dis:

721 0000000000000000: 41 8b 1c 07 mov %ebx, [%r15 +%rax*1]

722 @rdfa_output:

723 0: [0] improper memory address - bad index

724 return code: 1

725 ----------------------------------------------------------------------

726 @hex:

727 # mov %eax, %eax

728 89 c0

729 # mov (%r15, %rax), %ebx

730 41 8b 1c 07

731 # jmp .-4

732 eb fa

733 @rval:

734 VALIDATOR: Checking jump targets: 0 to 8

735 VALIDATOR: ERROR: 2: Bad jump target

736 VALIDATOR: Checking that basic blocks are aligned

737 * <input> IS UNSAFE *

738 @dis:

739 0000000000000000: 89 c0 mov %eax, %eax

740 0000000000000002: 41 8b 1c 07 mov %ebx, [%r15 +%rax*1]

741 0000000000000006: eb fa jmp 0x2

742 @rdfa_output:

743 6: [0] bad jump target

744 return code: 1

745 @validators_disagree:

746 Difference in jump reporting.

747 ----------------------------------------------------------------------

748 @hex:

749 # Check that post-conditions do not leak from a superinstruction. In the

750 # PyDFA validator, to share DFT states, the first instruction of the

751 # nacljmp, "and $~31, %eax", records a post-condition, just as when it is

752 # used on its own. Although the code below is safe, we don't really want

753 # the post-condition to leak through.

754 # and $~31, %eax

755 83 e0 e0

756 # add %r15, %rax

757 4c 01 f8

758 # jmp *%rax

759 ff e0

760 # %rax should not be regarded as zero-extended here.

761 # mov (%r15, %rax), %ebx

762 41 8b 1c 07

763 @rval:

764 VALIDATOR: 0000000000000008: 41 8b 1c 07 mov %ebx, [%r15+%rax*1]

765 VALIDATOR: ERROR: Invalid index register in memory offset

766 VALIDATOR: Checking jump targets: 0 to c

767 VALIDATOR: Checking that basic blocks are aligned

768 * <input> IS UNSAFE *

769 @dis:

770 0000000000000000: 83 e0 e0 and %eax, 0xe0

771 0000000000000003: 4c 01 f8 add %rax, %r15

772 0000000000000006: ff e0 jmp %rax

773 0000000000000008: 41 8b 1c 07 mov %ebx, [%r15 +%rax*1]

774 @rdfa_output:

775 8: [0] improper memory address - bad index

776 return code: 1

777 ----------------------------------------------------------------------

778 @hex:

779 # mov %edi, %edi

780 89 ff

781 # lea (%r15, %rdi), %rdi

782 49 8d 3c 3f

783 # rep stos %al, %es:(%rdi)

784 f3 aa

785 # %rdi should not be regarded as zero-extended here.

786 # mov (%r15, %rdi), %ebx

787 41 8b 1c 3f

788 @rval:

789 VALIDATOR: 0000000000000008: 41 8b 1c 3f mov %ebx, [%r15+%rdi*1]

790 VALIDATOR: ERROR: Invalid index register in memory offset

791 VALIDATOR: Checking jump targets: 0 to c

792 VALIDATOR: Checking that basic blocks are aligned

793 * <input> IS UNSAFE *

794 @dis:

795 0000000000000000: 89 ff mov %edi, %edi

796 0000000000000002: 49 8d 3c 3f lea %rdi, [%r15 +%rdi*1]

797 0000000000000006: f3 aa stosb [%rdi]

798 0000000000000008: 41 8b 1c 3f mov %ebx, [%r15 +%rdi*1]

799 @rdfa_output:

800 8: [0] improper memory address - bad index

801 return code: 1

802 ----------------------------------------------------------------------

803 @hex:

804 # mov %esi, %esi

805 89 f6

806 # lea (%r15, %rsi), %rsi

807 49 8d 34 37

808 # mov %edi, %edi

809 89 ff

810 # lea (%r15, %rdi), %rdi

811 49 8d 3c 3f

812 # rep movsb %ds:(%rsi), %es:(%rdi)

813 f3 a4

814 # %rsi should not be regarded as zero-extended here.

815 # mov (%r15, %rsi), %ebx

816 41 8b 1c 37

817 @rval:

818 VALIDATOR: 000000000000000e: 41 8b 1c 37 mov %ebx, [%r15+%rsi*1]

819 VALIDATOR: ERROR: Invalid index register in memory offset

820 VALIDATOR: Checking jump targets: 0 to 12

821 VALIDATOR: Checking that basic blocks are aligned

822 * <input> IS UNSAFE *

823 @dis:

824 0000000000000000: 89 f6 mov %esi, %esi

825 0000000000000002: 49 8d 34 37 lea %rsi, [%r15 +%rsi*1]

826 0000000000000006: 89 ff mov %edi, %edi

827 0000000000000008: 49 8d 3c 3f lea %rdi, [%r15 +%rdi*1]

828 000000000000000c: f3 a4 movsb [%rdi], [ %rsi]

829 000000000000000e: 41 8b 1c 37 mov %ebx, [%r15 +%rsi*1]

830 @rdfa_output:

831 e: [0] improper memory address - bad index

832 return code: 1

833 ----------------------------------------------------------------------

834 @hex:

835 # Non-%r15-based memory accesses.

836 # mov 0x1234(%rip), %eax

837 8b 05 34 12 00 00

838 # mov 0x1234(%rsp), %eax

839 8b 84 24 34 12 00 00

840 # mov 0x1234(%rbp), %eax

841 8b 85 34 12 00 00

842 @rval:

843 VALIDATOR: Checking jump targets: 0 to 13

844 VALIDATOR: Checking that basic blocks are aligned

845 * <input> is safe *

846 @dis:

847 0000000000000000: 8b 05 34 12 00 00 mov %eax, [%rip +0x1234]

848 0000000000000006: 8b 84 24 34 12 00 00 mov %eax, [%rsp +0x1234]

849 000000000000000d: 8b 85 34 12 00 00 mov %eax, [%rbp +0x1234]

850 @rdfa_output:

851 return code: 0

852 ----------------------------------------------------------------------

853 @hex:

854 # mov 0x1234(%rsp, %rbx), %eax

855 8b 84 1c 34 12 00 00

856 @rval:

857 VALIDATOR: 0000000000000000: 8b 84 1c 34 12 00 00 mov %eax, [%rsp+%rbx*1+0x1234]

858 VALIDATOR: ERROR: Invalid index register in memory offset

859 VALIDATOR: Checking jump targets: 0 to 7

860 VALIDATOR: Checking that basic blocks are aligned

861 * <input> IS UNSAFE *

862 @dis:

863 0000000000000000: 8b 84 1c 34 12 00 00 mov %eax, [%rsp +%rbx*1+0x1234]

864 @rdfa_output:

865 0: [0] improper memory address - bad index

866 return code: 1

867 ----------------------------------------------------------------------

868 @hex:

869 # mov 0x1234(%rbp, %rbx), %eax

870 8b 84 1d 34 12 00 00

871 @rval:

872 VALIDATOR: 0000000000000000: 8b 84 1d 34 12 00 00 mov %eax, [%rbp+%rbx*1+0x1234]

873 VALIDATOR: ERROR: Invalid index register in memory offset

874 VALIDATOR: Checking jump targets: 0 to 7

875 VALIDATOR: Checking that basic blocks are aligned

876 * <input> IS UNSAFE *

877 @dis:

878 0000000000000000: 8b 84 1d 34 12 00 00 mov %eax, [%rbp +%rbx*1+0x1234]

879 @rdfa_output:

880 0: [0] improper memory address - bad index

881 return code: 1

882 ----------------------------------------------------------------------

883 @hex:

884 # mov %ebx, %ebx

885 89 db \\

886 # mov 0x1234(%rsp, %rbx), %eax

887 8b 84 1c 34 12 00 00

888 @rval:

889 VALIDATOR: Checking jump targets: 0 to 9

890 VALIDATOR: Checking that basic blocks are aligned

891 * <input> is safe *

892 @dis:

893 0000000000000000: 89 db mov %ebx, %ebx

894 0000000000000002: 8b 84 1c 34 12 00 00 mov %eax, [%rsp +%rbx*1+0x1234]

895 @rdfa_output:

896 return code: 0

897 ----------------------------------------------------------------------

898 @hex:

899 # mov %ebx, %ebx

900 89 db \\

901 # mov 0x1234(%rbp, %rbx), %eax

902 8b 84 1d 34 12 00 00

903 @rval:

904 VALIDATOR: Checking jump targets: 0 to 9

905 VALIDATOR: Checking that basic blocks are aligned

906 * <input> is safe *

907 @dis:

908 0000000000000000: 89 db mov %ebx, %ebx

909 0000000000000002: 8b 84 1d 34 12 00 00 mov %eax, [%rbp +%rbx*1+0x1234]

910 @rdfa_output:

911 return code: 0

912 ----------------------------------------------------------------------

913 @hex:

914 # 'lea' is not a memory access.

915 # lea (%rbx, %rcx, 4), %rax

916 48 8d 04 8b

917 @rval:

918 VALIDATOR: Checking jump targets: 0 to 4

919 VALIDATOR: Checking that basic blocks are aligned

920 * <input> is safe *

921 @dis:

922 0000000000000000: 48 8d 04 8b lea %rax, [%rbx +%rcx*4]

923 @rdfa_output:

924 return code: 0

925 ----------------------------------------------------------------------

926 @hex:

927 # Stack operations.

928 # mov %rsp, %rbp

929 48 89 e5

930 # mov %rbp, %rsp

931 48 89 ec

932 @rval:

933 VALIDATOR: Checking jump targets: 0 to 6

934 VALIDATOR: Checking that basic blocks are aligned

935 * <input> is safe *

936 @dis:

937 0000000000000000: 48 89 e5 mov %rbp, %rsp

938 0000000000000003: 48 89 ec mov %rsp, %rbp

939 @rdfa_output:

940 return code: 0

941 ----------------------------------------------------------------------

942 @hex:

943 # add $8, %ebp

944 83 c5 08 \\

945 # add %r15, %rbp

946 4c 01 fd

947 @rval:

948 VALIDATOR: Checking jump targets: 0 to 6

949 VALIDATOR: Checking that basic blocks are aligned

950 * <input> is safe *

951 @dis:

952 0000000000000000: 83 c5 08 add %ebp, 0x8

953 0000000000000003: 4c 01 fd add %rbp, %r15

954 @rdfa_output:

955 return code: 0

956 ----------------------------------------------------------------------

957 @hex:

958 # add $8, %ebp

959 83 c5 08

960 # add %r15, %rbp

961 4c 01 fd

962 # jmp .-3

963 eb fb

964 @rval:

965 VALIDATOR: Checking jump targets: 0 to 8

966 VALIDATOR: ERROR: 3: Bad jump target

967 VALIDATOR: Checking that basic blocks are aligned

968 * <input> IS UNSAFE *

969 @dis:

970 0000000000000000: 83 c5 08 add %ebp, 0x8

971 0000000000000003: 4c 01 fd add %rbp, %r15

972 0000000000000006: eb fb jmp 0x3

973 @rdfa_output:

974 6: [0] bad jump target

975 return code: 1

976 @validators_disagree:

977 Difference in jump reporting.

978 ----------------------------------------------------------------------

979 @hex:

980 # A stack fixup on its own is not allowed.

981 # add %r15, %rbp

982 4c 01 fd

983 @rval:

984 VALIDATOR: 0000000000000000: 4c 01 fd add %rbp, %r15

985 VALIDATOR: ERROR: Illegal change to register RBP

986 VALIDATOR: Checking jump targets: 0 to 3

987 VALIDATOR: Checking that basic blocks are aligned

988 * <input> IS UNSAFE *

989 @dis:

990 0000000000000000: 4c 01 fd add %rbp, %r15

991 @rdfa_output:

992 0: [0] improper %rbp sandboxing

993 return code: 1

994 ----------------------------------------------------------------------

995 @hex:

996 # add %r15, %rsp

997 4c 01 fc

998 @rval:

999 VALIDATOR: 0000000000000000: 4c 01 fc add %rsp, %r15

1000 VALIDATOR: ERROR: Illegal assignment to RSP

1001 VALIDATOR: Checking jump targets: 0 to 3

1002 VALIDATOR: Checking that basic blocks are aligned

1003 * <input> IS UNSAFE *

1004 @dis:

1005 0000000000000000: 4c 01 fc add %rsp, %r15

1006 @rdfa_output:

1007 0: [0] improper %rsp sandboxing

1008 return code: 1

1009 ----------------------------------------------------------------------

1010 @hex:

1011 # add %r15, %r15

1012 4d 01 ff

1013 @rval:

1014 VALIDATOR: 0000000000000000: 4d 01 ff add %r15, %r15

1015 VALIDATOR: ERROR: Illegal to change the value of register RegR15

1016 VALIDATOR: Checking jump targets: 0 to 3

1017 VALIDATOR: Checking that basic blocks are aligned

1018 * <input> IS UNSAFE *

1019 @dis:

1020 0000000000000000: 4d 01 ff add %r15, %r15

1021 @rdfa_output:

1022 0: [0] error - %r15 is changed

1023 return code: 1

1024 ----------------------------------------------------------------------

1025 @hex:

1026 # Sandboxing is not required on prefetch instructions.

1027 # prefetchnta (%rax)

1028 0f 18 00

1029 @rval:

1030 VALIDATOR: Checking jump targets: 0 to 3

1031 VALIDATOR: Checking that basic blocks are aligned

1032 * <input> is safe *

1033 @dis:

1034 0000000000000000: 0f 18 00 prefetchnta [%r ax]

1035 @rdfa_output:

1036 return code: 0

1037 ----------------------------------------------------------------------

1038 @hex:

1039 # Segment register manipulations are forbidden

1040 # mov %rax, %es

1041 48 8e c0

1042 @rval:

1043 VALIDATOR: 0000000000000000: 48 8e c0 mov %es, %ax

1044 VALIDATOR: ERROR: This instruction has been marked illegal by Native Client

1045 VALIDATOR: 0000000000000000: 48 8e c0 mov %es, %ax

1046 VALIDATOR: ERROR: Illegal assignment to segment register RegES

1047 VALIDATOR: Checking jump targets: 0 to 3

1048 VALIDATOR: Checking that basic blocks are aligned

1049 * <input> IS UNSAFE *

1050 @dis:

1051 0000000000000000: 48 8e c0 mov %es, %ax

1052 @rdfa_output:

1053 0: [0] unrecognized instruction

1054 return code: 1

1055 ----------------------------------------------------------------------

1056 @hex:

1057 # mov %es, %rax

1058 48 8c c0

1059 @rval:

1060 VALIDATOR: 0000000000000000: 48 8c c0 mov %rax, %es

1061 VALIDATOR: ERROR: This instruction has been marked illegal by Native Client

1062 VALIDATOR: Checking jump targets: 0 to 3

1063 VALIDATOR: Checking that basic blocks are aligned

1064 * <input> IS UNSAFE *

1065 @dis:

1066 0000000000000000: 48 8c c0 mov %rax, %es

1067 @rdfa_output:

1068 0: [0] unrecognized instruction

1069 return code: 1

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