1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 #define _GNU_SOURCE 4 #define _LARGEFILE64_SOURCE 5 6 /* libc-specific include files 7 * The program may be built in 3 ways: 8 * $(CC) -nostdlib -include /path/to/nolibc.h => NOLIBC already defined 9 * $(CC) -nostdlib -I/path/to/nolibc/sysroot => _NOLIBC_* guards are present 10 * $(CC) with default libc => NOLIBC* never defined 11 */ 12 #include <stdio.h> 13 #include <stdlib.h> 14 #include <string.h> 15 #include <sys/auxv.h> 16 #include <sys/ioctl.h> 17 #include <sys/mman.h> 18 #include <sys/mount.h> 19 #include <sys/prctl.h> 20 #include <sys/ptrace.h> 21 #include <sys/random.h> 22 #include <sys/reboot.h> 23 #include <sys/resource.h> 24 #include <sys/stat.h> 25 #include <sys/syscall.h> 26 #include <sys/sysmacros.h> 27 #include <sys/time.h> 28 #include <sys/timerfd.h> 29 #include <sys/uio.h> 30 #include <sys/utsname.h> 31 #include <sys/wait.h> 32 #include <dirent.h> 33 #include <errno.h> 34 #include <fcntl.h> 35 #include <poll.h> 36 #include <sched.h> 37 #include <signal.h> 38 #include <stdarg.h> 39 #include <stddef.h> 40 #include <stdint.h> 41 #include <time.h> 42 #include <unistd.h> 43 #include <limits.h> 44 #include <ctype.h> 45 #include <stdbool.h> 46 47 #pragma GCC diagnostic ignored "-Wmissing-prototypes" 48 49 #include "nolibc-test-linkage.h" 50 51 /* for the type of int_fast16_t and int_fast32_t, musl differs from glibc and nolibc */ 52 #define SINT_MAX_OF_TYPE(type) (((type)1 << (sizeof(type) * 8 - 2)) - (type)1 + ((type)1 << (sizeof(type) * 8 - 2))) 53 #define SINT_MIN_OF_TYPE(type) (-SINT_MAX_OF_TYPE(type) - 1) 54 55 /* will be used to test initialization of environ */ 56 static char **test_envp; 57 58 /* will be used to test initialization of argv */ 59 static char **test_argv; 60 61 /* will be used to test initialization of argc */ 62 static int test_argc; 63 64 /* will be used by some test cases as readable file, please don't write it */ 65 static const char *argv0; 66 67 /* will be used by constructor tests */ 68 static int constructor_test_value; 69 70 static const int is_nolibc = 71 #ifdef NOLIBC 72 1 73 #else 74 0 75 #endif 76 ; 77 78 static const int is_glibc = 79 #ifdef __GLIBC__ 80 1 81 #else 82 0 83 #endif 84 ; 85 86 #if !defined(NOLIBC) 87 /* Some disabled tests may not compile. */ 88 89 /* strlcat() and strlcpy() may not be in the system headers. */ 90 #undef strlcat 91 #undef strlcpy 92 #define strlcat(d, s, l) 0 93 #define strlcpy(d, s, l) 0 94 95 /* readdir_r() is likely to be marked deprecated */ 96 #undef readdir_r 97 #define readdir_r(dir, dirent, result) ((errno = EINVAL), -1) 98 #endif 99 100 /* definition of a series of tests */ 101 struct test { 102 const char *name; /* test name */ 103 int (*func)(int min, int max); /* handler */ 104 }; 105 106 #ifndef _NOLIBC_STDLIB_H 107 char *itoa(int i) 108 { 109 static char buf[12]; 110 int ret; 111 112 ret = snprintf(buf, sizeof(buf), "%d", i); 113 return (ret >= 0 && ret < sizeof(buf)) ? buf : "#err"; 114 } 115 #endif 116 117 #define CASE_ERR(err) \ 118 case err: return #err 119 120 /* returns the error name (e.g. "ENOENT") for common errors, "SUCCESS" for 0, 121 * or the decimal value for less common ones. 122 */ 123 static const char *errorname(int err) 124 { 125 switch (err) { 126 case 0: return "SUCCESS"; 127 CASE_ERR(EPERM); 128 CASE_ERR(ENOENT); 129 CASE_ERR(ESRCH); 130 CASE_ERR(EINTR); 131 CASE_ERR(EIO); 132 CASE_ERR(ENXIO); 133 CASE_ERR(E2BIG); 134 CASE_ERR(ENOEXEC); 135 CASE_ERR(EBADF); 136 CASE_ERR(ECHILD); 137 CASE_ERR(EAGAIN); 138 CASE_ERR(ENOMEM); 139 CASE_ERR(EACCES); 140 CASE_ERR(EFAULT); 141 CASE_ERR(ENOTBLK); 142 CASE_ERR(EBUSY); 143 CASE_ERR(EEXIST); 144 CASE_ERR(EXDEV); 145 CASE_ERR(ENODEV); 146 CASE_ERR(ENOTDIR); 147 CASE_ERR(EISDIR); 148 CASE_ERR(EINVAL); 149 CASE_ERR(ENFILE); 150 CASE_ERR(EMFILE); 151 CASE_ERR(ENOTTY); 152 CASE_ERR(ETXTBSY); 153 CASE_ERR(EFBIG); 154 CASE_ERR(ENOSPC); 155 CASE_ERR(ESPIPE); 156 CASE_ERR(EROFS); 157 CASE_ERR(EMLINK); 158 CASE_ERR(EPIPE); 159 CASE_ERR(EDOM); 160 CASE_ERR(ERANGE); 161 CASE_ERR(ENOSYS); 162 CASE_ERR(EOVERFLOW); 163 default: 164 return itoa(err); 165 } 166 } 167 168 enum RESULT { 169 OK, 170 FAIL, 171 SKIPPED, 172 }; 173 174 static void result(int llen, enum RESULT r) 175 { 176 const char *msg; 177 178 if (r == OK) 179 msg = " [OK]"; 180 else if (r == SKIPPED) 181 msg = "[SKIPPED]"; 182 else 183 msg = " [FAIL]"; 184 185 llen = 64 - llen; 186 if (llen < 0) 187 llen = 0; 188 printf("%*s%s\n", llen, "", msg); 189 } 190 191 /* The tests below are intended to be used by the macroes, which evaluate 192 * expression <expr>, print the status to stdout, and update the "ret" 193 * variable to count failures. The functions themselves return the number 194 * of failures, thus either 0 or 1. 195 */ 196 197 #define EXPECT_ZR(cond, expr) \ 198 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_zr(expr, llen); } while (0) 199 200 static __attribute__((unused)) 201 int expect_zr(int expr, int llen) 202 { 203 int ret = !(expr == 0); 204 205 llen += printf(" = %d ", expr); 206 result(llen, ret ? FAIL : OK); 207 return ret; 208 } 209 210 211 #define EXPECT_NZ(cond, expr) \ 212 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_nz(expr, llen); } while (0) 213 214 static __attribute__((unused)) 215 int expect_nz(int expr, int llen) 216 { 217 int ret = !(expr != 0); 218 219 llen += printf(" = %d ", expr); 220 result(llen, ret ? FAIL : OK); 221 return ret; 222 } 223 224 225 #define EXPECT_EQ(cond, expr, val) \ 226 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_eq(expr, llen, val); } while (0) 227 228 static __attribute__((unused)) 229 int expect_eq(uint64_t expr, int llen, uint64_t val) 230 { 231 int ret = !(expr == val); 232 233 llen += printf(" = %lld ", (long long)expr); 234 result(llen, ret ? FAIL : OK); 235 return ret; 236 } 237 238 239 #define EXPECT_NE(cond, expr, val) \ 240 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ne(expr, llen, val); } while (0) 241 242 static __attribute__((unused)) 243 int expect_ne(int expr, int llen, int val) 244 { 245 int ret = !(expr != val); 246 247 llen += printf(" = %d ", expr); 248 result(llen, ret ? FAIL : OK); 249 return ret; 250 } 251 252 253 #define EXPECT_GE(cond, expr, val) \ 254 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ge(expr, llen, val); } while (0) 255 256 static __attribute__((unused)) 257 int expect_ge(int expr, int llen, int val) 258 { 259 int ret = !(expr >= val); 260 261 llen += printf(" = %d ", expr); 262 result(llen, ret ? FAIL : OK); 263 return ret; 264 } 265 266 267 #define EXPECT_GT(cond, expr, val) \ 268 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_gt(expr, llen, val); } while (0) 269 270 static __attribute__((unused)) 271 int expect_gt(int expr, int llen, int val) 272 { 273 int ret = !(expr > val); 274 275 llen += printf(" = %d ", expr); 276 result(llen, ret ? FAIL : OK); 277 return ret; 278 } 279 280 281 #define EXPECT_LE(cond, expr, val) \ 282 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_le(expr, llen, val); } while (0) 283 284 static __attribute__((unused)) 285 int expect_le(int expr, int llen, int val) 286 { 287 int ret = !(expr <= val); 288 289 llen += printf(" = %d ", expr); 290 result(llen, ret ? FAIL : OK); 291 return ret; 292 } 293 294 295 #define EXPECT_LT(cond, expr, val) \ 296 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_lt(expr, llen, val); } while (0) 297 298 static __attribute__((unused)) 299 int expect_lt(int expr, int llen, int val) 300 { 301 int ret = !(expr < val); 302 303 llen += printf(" = %d ", expr); 304 result(llen, ret ? FAIL : OK); 305 return ret; 306 } 307 308 309 #define EXPECT_SYSZR(cond, expr) \ 310 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syszr(expr, llen); } while (0) 311 312 static __attribute__((unused)) 313 int expect_syszr(int expr, int llen) 314 { 315 int ret = 0; 316 317 if (errno == ENOSYS) { 318 llen += printf(" = ENOSYS"); 319 result(llen, SKIPPED); 320 } else if (expr) { 321 ret = 1; 322 llen += printf(" = %d %s ", expr, errorname(errno)); 323 result(llen, FAIL); 324 } else { 325 llen += printf(" = %d ", expr); 326 result(llen, OK); 327 } 328 return ret; 329 } 330 331 332 #define EXPECT_SYSEQ(cond, expr, val) \ 333 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syseq(expr, llen, val); } while (0) 334 335 static __attribute__((unused)) 336 int expect_syseq(int expr, int llen, int val) 337 { 338 int ret = 0; 339 340 if (expr != val) { 341 ret = 1; 342 llen += printf(" = %d %s ", expr, errorname(errno)); 343 result(llen, FAIL); 344 } else { 345 llen += printf(" = %d ", expr); 346 result(llen, OK); 347 } 348 return ret; 349 } 350 351 352 #define EXPECT_SYSNE(cond, expr, val) \ 353 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_sysne(expr, llen, val); } while (0) 354 355 static __attribute__((unused)) 356 int expect_sysne(int expr, int llen, int val) 357 { 358 int ret = 0; 359 360 if (errno == ENOSYS) { 361 llen += printf(" = ENOSYS"); 362 result(llen, SKIPPED); 363 } else if (expr == val) { 364 ret = 1; 365 llen += printf(" = %d %s ", expr, errorname(errno)); 366 result(llen, FAIL); 367 } else { 368 llen += printf(" = %d ", expr); 369 result(llen, OK); 370 } 371 return ret; 372 } 373 374 375 #define EXPECT_SYSER2(cond, expr, expret, experr1, experr2) \ 376 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syserr2(expr, expret, experr1, experr2, llen); } while (0) 377 378 #define EXPECT_SYSER(cond, expr, expret, experr) \ 379 EXPECT_SYSER2(cond, expr, expret, experr, 0) 380 381 static __attribute__((unused)) 382 int expect_syserr2(int expr, int expret, int experr1, int experr2, int llen) 383 { 384 int ret = 0; 385 int _errno = errno; 386 387 llen += printf(" = %d %s ", expr, errorname(_errno)); 388 if (errno == ENOSYS) { 389 result(llen, SKIPPED); 390 } else if (expr != expret || (_errno != experr1 && _errno != experr2)) { 391 ret = 1; 392 if (experr2 == 0) 393 llen += printf(" != (%d %s) ", expret, errorname(experr1)); 394 else 395 llen += printf(" != (%d %s %s) ", expret, errorname(experr1), errorname(experr2)); 396 result(llen, FAIL); 397 } else { 398 result(llen, OK); 399 } 400 return ret; 401 } 402 403 404 #define EXPECT_PTRZR(cond, expr) \ 405 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrzr(expr, llen); } while (0) 406 407 static __attribute__((unused)) 408 int expect_ptrzr(const void *expr, int llen) 409 { 410 int ret = 0; 411 412 llen += printf(" = <%p> ", expr); 413 if (expr) { 414 ret = 1; 415 result(llen, FAIL); 416 } else { 417 result(llen, OK); 418 } 419 return ret; 420 } 421 422 423 #define EXPECT_PTRNZ(cond, expr) \ 424 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrnz(expr, llen); } while (0) 425 426 static __attribute__((unused)) 427 int expect_ptrnz(const void *expr, int llen) 428 { 429 int ret = 0; 430 431 llen += printf(" = <%p> ", expr); 432 if (!expr) { 433 ret = 1; 434 result(llen, FAIL); 435 } else { 436 result(llen, OK); 437 } 438 return ret; 439 } 440 441 #define EXPECT_PTREQ(cond, expr, cmp) \ 442 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptreq(expr, llen, cmp); } while (0) 443 444 static __attribute__((unused)) 445 int expect_ptreq(const void *expr, int llen, const void *cmp) 446 { 447 int ret = 0; 448 449 llen += printf(" = <%p> ", expr); 450 if (expr != cmp) { 451 ret = 1; 452 result(llen, FAIL); 453 } else { 454 result(llen, OK); 455 } 456 return ret; 457 } 458 459 #define EXPECT_PTRNE(cond, expr, cmp) \ 460 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrne(expr, llen, cmp); } while (0) 461 462 static __attribute__((unused)) 463 int expect_ptrne(const void *expr, int llen, const void *cmp) 464 { 465 int ret = 0; 466 467 llen += printf(" = <%p> ", expr); 468 if (expr == cmp) { 469 ret = 1; 470 result(llen, FAIL); 471 } else { 472 result(llen, OK); 473 } 474 return ret; 475 } 476 477 #define EXPECT_PTRGE(cond, expr, cmp) \ 478 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrge(expr, llen, cmp); } while (0) 479 480 static __attribute__((unused)) 481 int expect_ptrge(const void *expr, int llen, const void *cmp) 482 { 483 int ret = !(expr >= cmp); 484 485 llen += printf(" = <%p> ", expr); 486 result(llen, ret ? FAIL : OK); 487 return ret; 488 } 489 490 #define EXPECT_PTRGT(cond, expr, cmp) \ 491 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrgt(expr, llen, cmp); } while (0) 492 493 static __attribute__((unused)) 494 int expect_ptrgt(const void *expr, int llen, const void *cmp) 495 { 496 int ret = !(expr > cmp); 497 498 llen += printf(" = <%p> ", expr); 499 result(llen, ret ? FAIL : OK); 500 return ret; 501 } 502 503 504 #define EXPECT_PTRLE(cond, expr, cmp) \ 505 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrle(expr, llen, cmp); } while (0) 506 507 static __attribute__((unused)) 508 int expect_ptrle(const void *expr, int llen, const void *cmp) 509 { 510 int ret = !(expr <= cmp); 511 512 llen += printf(" = <%p> ", expr); 513 result(llen, ret ? FAIL : OK); 514 return ret; 515 } 516 517 518 #define EXPECT_PTRLT(cond, expr, cmp) \ 519 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrlt(expr, llen, cmp); } while (0) 520 521 static __attribute__((unused)) 522 int expect_ptrlt(const void *expr, int llen, const void *cmp) 523 { 524 int ret = !(expr < cmp); 525 526 llen += printf(" = <%p> ", expr); 527 result(llen, ret ? FAIL : OK); 528 return ret; 529 } 530 531 #define EXPECT_PTRER2(cond, expr, expret, experr1, experr2) \ 532 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrerr2(expr, expret, experr1, experr2, llen); } while (0) 533 534 #define EXPECT_PTRER(cond, expr, expret, experr) \ 535 EXPECT_PTRER2(cond, expr, expret, experr, 0) 536 537 static __attribute__((unused)) 538 int expect_ptrerr2(const void *expr, const void *expret, int experr1, int experr2, int llen) 539 { 540 int ret = 0; 541 int _errno = errno; 542 543 llen += printf(" = <%p> %s ", expr, errorname(_errno)); 544 if (expr != expret || (_errno != experr1 && _errno != experr2)) { 545 ret = 1; 546 if (experr2 == 0) 547 llen += printf(" != (<%p> %s) ", expret, errorname(experr1)); 548 else 549 llen += printf(" != (<%p> %s %s) ", expret, errorname(experr1), errorname(experr2)); 550 result(llen, FAIL); 551 } else { 552 result(llen, OK); 553 } 554 return ret; 555 } 556 557 #define EXPECT_STRZR(cond, expr) \ 558 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strzr(expr, llen); } while (0) 559 560 static __attribute__((unused)) 561 int expect_strzr(const char *expr, int llen) 562 { 563 int ret = 0; 564 565 llen += printf(" = <%s> ", expr ? expr : "(null)"); 566 if (expr) { 567 ret = 1; 568 result(llen, FAIL); 569 } else { 570 result(llen, OK); 571 } 572 return ret; 573 } 574 575 576 #define EXPECT_STRNZ(cond, expr) \ 577 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strnz(expr, llen); } while (0) 578 579 static __attribute__((unused)) 580 int expect_strnz(const char *expr, int llen) 581 { 582 int ret = 0; 583 584 llen += printf(" = <%s> ", expr ? expr : "(null)"); 585 if (!expr) { 586 ret = 1; 587 result(llen, FAIL); 588 } else { 589 result(llen, OK); 590 } 591 return ret; 592 } 593 594 595 #define EXPECT_STREQ(cond, expr, cmp) \ 596 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_streq(expr, llen, cmp); } while (0) 597 598 static __attribute__((unused)) 599 int expect_streq(const char *expr, int llen, const char *cmp) 600 { 601 int ret = 0; 602 603 llen += printf(" = <%s> ", expr); 604 if (strcmp(expr, cmp) != 0) { 605 ret = 1; 606 result(llen, FAIL); 607 } else { 608 result(llen, OK); 609 } 610 return ret; 611 } 612 613 614 #define EXPECT_STRNE(cond, expr, cmp) \ 615 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strne(expr, llen, cmp); } while (0) 616 617 static __attribute__((unused)) 618 int expect_strne(const char *expr, int llen, const char *cmp) 619 { 620 int ret = 0; 621 622 llen += printf(" = <%s> ", expr); 623 if (strcmp(expr, cmp) == 0) { 624 ret = 1; 625 result(llen, FAIL); 626 } else { 627 result(llen, OK); 628 } 629 return ret; 630 } 631 632 #define EXPECT_STRBUFEQ(cond, expr, buf, val, cmp) \ 633 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_str_buf_eq(expr, buf, val, llen, cmp); } while (0) 634 635 static __attribute__((unused)) 636 int expect_str_buf_eq(size_t expr, const char *buf, size_t val, int llen, const char *cmp) 637 { 638 llen += printf(" = %lu <%s> ", (unsigned long)expr, buf); 639 if (strcmp(buf, cmp) != 0) { 640 result(llen, FAIL); 641 return 1; 642 } 643 if (expr != val) { 644 result(llen, FAIL); 645 return 1; 646 } 647 648 result(llen, OK); 649 return 0; 650 } 651 652 #define EXPECT_STRTOX(cond, func, input, base, expected, chars, expected_errno) \ 653 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strtox(llen, func, input, base, expected, chars, expected_errno); } while (0) 654 655 static __attribute__((unused)) 656 int expect_strtox(int llen, void *func, const char *input, int base, intmax_t expected, int expected_chars, int expected_errno) 657 { 658 char *endptr; 659 int actual_errno, actual_chars; 660 intmax_t r; 661 662 errno = 0; 663 if (func == strtol) { 664 r = strtol(input, &endptr, base); 665 } else if (func == strtoul) { 666 r = strtoul(input, &endptr, base); 667 } else { 668 result(llen, FAIL); 669 return 1; 670 } 671 actual_errno = errno; 672 actual_chars = endptr - input; 673 674 llen += printf(" %lld = %lld", (long long)expected, (long long)r); 675 if (r != expected) { 676 result(llen, FAIL); 677 return 1; 678 } 679 if (expected_chars == -1) { 680 if (*endptr != '\0') { 681 result(llen, FAIL); 682 return 1; 683 } 684 } else if (expected_chars != actual_chars) { 685 result(llen, FAIL); 686 return 1; 687 } 688 if (actual_errno != expected_errno) { 689 result(llen, FAIL); 690 return 1; 691 } 692 693 result(llen, OK); 694 return 0; 695 } 696 697 /* declare tests based on line numbers. There must be exactly one test per line. */ 698 #define CASE_TEST(name) \ 699 case __LINE__: llen += printf("%d %s", test, #name); 700 701 __attribute__((constructor)) 702 static void constructor1(void) 703 { 704 constructor_test_value |= 1 << 0; 705 } 706 707 __attribute__((constructor)) 708 static void constructor2(int argc, char **argv, char **envp) 709 { 710 if (argc && argv && envp) 711 constructor_test_value |= 1 << 1; 712 } 713 714 int test_program_invocation_name(void) 715 { 716 char buf[100]; 717 char *dirsep; 718 ssize_t r; 719 int fd; 720 721 fd = open("/proc/self/cmdline", O_RDONLY); 722 if (fd == -1) 723 return 1; 724 725 r = read(fd, buf, sizeof(buf)); 726 close(fd); 727 if (r < 1 || r == sizeof(buf)) 728 return 1; 729 730 buf[r - 1] = '\0'; 731 732 if (strcmp(program_invocation_name, buf) != 0) 733 return 1; 734 735 dirsep = strrchr(buf, '/'); 736 if (!dirsep || dirsep[1] == '\0') 737 return 1; 738 739 if (strcmp(program_invocation_short_name, dirsep + 1) != 0) 740 return 1; 741 742 return 0; 743 } 744 745 int run_startup(int min, int max) 746 { 747 int test; 748 int ret = 0; 749 /* kernel at least passes HOME and TERM, shell passes more */ 750 int env_total = 2; 751 /* checking NULL for argv/argv0, environ and _auxv is not enough, let's compare with sbrk(0) or &end */ 752 extern char end; 753 char *brk = sbrk(0) != (void *)-1 ? sbrk(0) : &end; 754 /* differ from nolibc, both glibc and musl have no global _auxv */ 755 const unsigned long *test_auxv = (void *)-1; 756 #ifdef NOLIBC 757 test_auxv = _auxv; 758 #endif 759 bool proc = access("/proc", R_OK) == 0; 760 761 for (test = min; test >= 0 && test <= max; test++) { 762 int llen = 0; /* line length */ 763 764 /* avoid leaving empty lines below, this will insert holes into 765 * test numbers. 766 */ 767 switch (test + __LINE__ + 1) { 768 CASE_TEST(argc); EXPECT_GE(1, test_argc, 1); break; 769 CASE_TEST(argv_addr); EXPECT_PTRGT(1, test_argv, brk); break; 770 CASE_TEST(argv_environ); EXPECT_PTRLT(1, test_argv, environ); break; 771 CASE_TEST(argv_total); EXPECT_EQ(1, environ - test_argv - 1, test_argc ?: 1); break; 772 CASE_TEST(argv0_addr); EXPECT_PTRGT(1, argv0, brk); break; 773 CASE_TEST(argv0_str); EXPECT_STRNZ(1, argv0 > brk ? argv0 : NULL); break; 774 CASE_TEST(argv0_len); EXPECT_GE(1, argv0 > brk ? strlen(argv0) : 0, 1); break; 775 CASE_TEST(environ_addr); EXPECT_PTRGT(1, environ, brk); break; 776 CASE_TEST(environ_envp); EXPECT_PTREQ(1, environ, test_envp); break; 777 CASE_TEST(environ_auxv); EXPECT_PTRLT(test_auxv != (void *)-1, environ, test_auxv); break; 778 CASE_TEST(environ_total); EXPECT_GE(test_auxv != (void *)-1, (void *)test_auxv - (void *)environ - 1, env_total); break; 779 CASE_TEST(environ_HOME); EXPECT_PTRNZ(1, getenv("HOME")); break; 780 CASE_TEST(auxv_addr); EXPECT_PTRGT(test_auxv != (void *)-1, test_auxv, brk); break; 781 CASE_TEST(auxv_AT_UID); EXPECT_EQ(1, getauxval(AT_UID), getuid()); break; 782 CASE_TEST(constructor); EXPECT_EQ(is_nolibc, constructor_test_value, 0x3); break; 783 CASE_TEST(linkage_errno); EXPECT_PTREQ(1, linkage_test_errno_addr(), &errno); break; 784 CASE_TEST(linkage_constr); EXPECT_EQ(1, linkage_test_constructor_test_value, 0x3); break; 785 CASE_TEST(prog_name); EXPECT_ZR(proc, test_program_invocation_name()); break; 786 case __LINE__: 787 return ret; /* must be last */ 788 /* note: do not set any defaults so as to permit holes above */ 789 } 790 } 791 return ret; 792 } 793 794 795 /* used by some syscall tests below */ 796 int test_getdents64(const char *dir) 797 { 798 char buffer[4096]; 799 int fd, ret; 800 int err; 801 802 ret = fd = open(dir, O_RDONLY | O_DIRECTORY, 0); 803 if (ret < 0) 804 return ret; 805 806 ret = getdents64(fd, (void *)buffer, sizeof(buffer)); 807 err = errno; 808 close(fd); 809 810 errno = err; 811 return ret; 812 } 813 814 static int test_dirent(void) 815 { 816 int comm = 0, cmdline = 0; 817 struct dirent dirent, *result; 818 DIR *dir; 819 int ret; 820 821 dir = opendir("/proc/self"); 822 if (!dir) 823 return 1; 824 825 while (1) { 826 errno = 0; 827 ret = readdir_r(dir, &dirent, &result); 828 if (ret != 0) 829 return 1; 830 if (!result) 831 break; 832 833 if (strcmp(dirent.d_name, "comm") == 0) 834 comm++; 835 else if (strcmp(dirent.d_name, "cmdline") == 0) 836 cmdline++; 837 } 838 839 if (errno) 840 return 1; 841 842 ret = closedir(dir); 843 if (ret) 844 return 1; 845 846 if (comm != 1 || cmdline != 1) 847 return 1; 848 849 return 0; 850 } 851 852 int test_getrandom(void) 853 { 854 uint64_t rng = 0; 855 ssize_t ret; 856 857 ret = getrandom(&rng, sizeof(rng), GRND_NONBLOCK); 858 if (ret == -1 && errno == EAGAIN) 859 return 0; /* No entropy available yet */ 860 861 if (ret != sizeof(rng)) 862 return ret; 863 864 if (!rng) { 865 errno = EINVAL; 866 return -1; 867 } 868 869 return 0; 870 } 871 872 int test_getpagesize(void) 873 { 874 int x = getpagesize(); 875 int c; 876 877 if (x < 0) 878 return x; 879 880 #if defined(__x86_64__) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) 881 /* 882 * x86 family is always 4K page. 883 */ 884 c = (x == 4096); 885 #elif defined(__aarch64__) 886 /* 887 * Linux aarch64 supports three values of page size: 4K, 16K, and 64K 888 * which are selected at kernel compilation time. 889 */ 890 c = (x == 4096 || x == (16 * 1024) || x == (64 * 1024)); 891 #else 892 /* 893 * Assuming other architectures must have at least 4K page. 894 */ 895 c = (x >= 4096); 896 #endif 897 898 return !c; 899 } 900 901 int test_file_stream(void) 902 { 903 FILE *f; 904 int r; 905 906 f = fopen("/dev/null", "r"); 907 if (!f) 908 return -1; 909 910 errno = 0; 911 r = fwrite("foo", 1, 3, f); 912 if (r != 0 || ((is_nolibc || is_glibc) && errno != EBADF)) { 913 fclose(f); 914 return -1; 915 } 916 917 r = fclose(f); 918 if (r == EOF) 919 return -1; 920 921 return 0; 922 } 923 924 int test_file_stream_wsr(void) 925 { 926 const char dataout[] = "foo"; 927 const size_t datasz = sizeof(dataout); 928 char datain[datasz]; 929 int fd, r; 930 FILE *f; 931 932 fd = open("/tmp", O_TMPFILE | O_RDWR, 0644); 933 if (fd == -1) 934 return -1; 935 936 f = fdopen(fd, "w+"); 937 if (!f) 938 return -1; 939 940 errno = 0; 941 r = fwrite(dataout, 1, datasz, f); 942 if (r != datasz) 943 return -1; 944 945 /* Attempt to read from the file without rewinding, 946 * we should read 0 items. 947 */ 948 r = fread(datain, 1, datasz, f); 949 if (r) 950 return -1; 951 952 /* Rewind the file to the start */ 953 r = fseek(f, 0, SEEK_SET); 954 if (r) 955 return -1; 956 957 /* Attempt to read back more than was written to 958 * make sure we handle short reads properly. 959 * fread() should return the number of complete items. 960 */ 961 r = fread(datain, 1, datasz + 1, f); 962 if (r != datasz) 963 return -1; 964 965 /* Data we read should match the data we just wrote */ 966 if (memcmp(datain, dataout, datasz) != 0) 967 return -1; 968 969 r = fclose(f); 970 if (r) 971 return -1; 972 973 return 0; 974 } 975 976 enum fork_type { 977 FORK_STANDARD, 978 FORK_VFORK, 979 }; 980 981 int test_fork(enum fork_type type) 982 { 983 int status; 984 pid_t pid; 985 986 /* flush the printf buffer to avoid child flush it */ 987 fflush(stdout); 988 fflush(stderr); 989 990 switch (type) { 991 case FORK_STANDARD: 992 pid = fork(); 993 break; 994 case FORK_VFORK: 995 pid = vfork(); 996 break; 997 default: 998 return 1; 999 } 1000 1001 switch (pid) { 1002 case -1: 1003 return 1; 1004 1005 case 0: 1006 _exit(123); 1007 1008 default: 1009 pid = waitpid(pid, &status, 0); 1010 1011 return pid == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 123; 1012 } 1013 } 1014 1015 int test_stat_timestamps(void) 1016 { 1017 struct stat st; 1018 1019 if (sizeof(st.st_atim.tv_sec) != sizeof(st.st_atime)) 1020 return 1; 1021 1022 if (stat("/proc/self/", &st) && stat(argv0, &st) && stat("/", &st)) 1023 return 1; 1024 1025 if (st.st_atim.tv_sec != st.st_atime || st.st_atim.tv_nsec > 1000000000) 1026 return 1; 1027 1028 if (st.st_mtim.tv_sec != st.st_mtime || st.st_mtim.tv_nsec > 1000000000) 1029 return 1; 1030 1031 if (st.st_ctim.tv_sec != st.st_ctime || st.st_ctim.tv_nsec > 1000000000) 1032 return 1; 1033 1034 return 0; 1035 } 1036 1037 int test_timer(void) 1038 { 1039 struct itimerspec timerspec; 1040 struct sigevent evp; 1041 timer_t timer; 1042 int ret; 1043 1044 evp.sigev_notify = SIGEV_NONE; 1045 1046 ret = timer_create(CLOCK_MONOTONIC, &evp, &timer); 1047 if (ret) 1048 return ret; 1049 1050 timerspec = (struct itimerspec) { 1051 .it_value.tv_sec = 1000000, 1052 }; 1053 ret = timer_settime(timer, 0, &timerspec, NULL); 1054 if (ret) 1055 goto err; 1056 1057 timerspec = (struct itimerspec) { 1058 .it_value.tv_sec = -1, 1059 .it_value.tv_nsec = -1, 1060 .it_interval.tv_sec = -1, 1061 .it_interval.tv_nsec = -1, 1062 }; 1063 ret = timer_gettime(timer, &timerspec); 1064 if (ret) 1065 goto err; 1066 1067 errno = EINVAL; 1068 ret = -1; 1069 1070 if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec) 1071 goto err; 1072 1073 if (timerspec.it_value.tv_sec > 1000000) 1074 goto err; 1075 1076 ret = timer_delete(timer); 1077 if (ret) 1078 return ret; 1079 1080 return 0; 1081 1082 err: 1083 timer_delete(timer); 1084 return ret; 1085 } 1086 1087 int test_timerfd(void) 1088 { 1089 struct itimerspec timerspec; 1090 int timer, ret; 1091 1092 timer = timerfd_create(CLOCK_MONOTONIC, 0); 1093 if (timer == -1) 1094 return -1; 1095 1096 timerspec = (struct itimerspec) { 1097 .it_value.tv_sec = 1000000, 1098 }; 1099 ret = timerfd_settime(timer, 0, &timerspec, NULL); 1100 if (ret) 1101 goto err; 1102 1103 timerspec = (struct itimerspec) { 1104 .it_value.tv_sec = -1, 1105 .it_value.tv_nsec = -1, 1106 .it_interval.tv_sec = -1, 1107 .it_interval.tv_nsec = -1, 1108 }; 1109 ret = timerfd_gettime(timer, &timerspec); 1110 if (ret) 1111 goto err; 1112 1113 errno = EINVAL; 1114 ret = -1; 1115 1116 if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec) 1117 goto err; 1118 1119 if (timerspec.it_value.tv_sec > 1000000) 1120 goto err; 1121 1122 ret = close(timer); 1123 if (ret) 1124 return ret; 1125 1126 return 0; 1127 1128 err: 1129 close(timer); 1130 return ret; 1131 } 1132 1133 int test_uname(void) 1134 { 1135 struct utsname buf; 1136 char osrelease[sizeof(buf.release)]; 1137 ssize_t r; 1138 int fd; 1139 1140 memset(&buf.domainname, 'P', sizeof(buf.domainname)); 1141 1142 if (uname(&buf)) 1143 return 1; 1144 1145 if (strncmp("Linux", buf.sysname, sizeof(buf.sysname))) 1146 return 1; 1147 1148 fd = open("/proc/sys/kernel/osrelease", O_RDONLY); 1149 if (fd == -1) 1150 return 1; 1151 1152 r = read(fd, osrelease, sizeof(osrelease)); 1153 if (r == -1) 1154 return 1; 1155 1156 close(fd); 1157 1158 if (osrelease[r - 1] == '\n') 1159 r--; 1160 1161 /* Validate one of the later fields to ensure field sizes are correct */ 1162 if (strncmp(osrelease, buf.release, r)) 1163 return 1; 1164 1165 /* Ensure the field domainname is set, it is missing from struct old_utsname */ 1166 if (strnlen(buf.domainname, sizeof(buf.domainname)) == sizeof(buf.domainname)) 1167 return 1; 1168 1169 return 0; 1170 } 1171 1172 int test_mmap_munmap(void) 1173 { 1174 int ret, fd, i, page_size; 1175 void *mem; 1176 size_t file_size, length, mem_length; 1177 off_t offset, pa_offset; 1178 struct stat stat_buf; 1179 const char * const files[] = { 1180 "/dev/zero", 1181 "/proc/1/exe", "/proc/self/exe", 1182 argv0, 1183 NULL 1184 }; 1185 1186 page_size = getpagesize(); 1187 if (page_size < 0) 1188 return 1; 1189 1190 /* find a right file to mmap, existed and accessible */ 1191 for (i = 0; files[i] != NULL; i++) { 1192 ret = fd = open(files[i], O_RDONLY); 1193 if (ret == -1) 1194 continue; 1195 else 1196 break; 1197 } 1198 if (ret == -1) 1199 return 1; 1200 1201 ret = stat(files[i], &stat_buf); 1202 if (ret == -1) 1203 goto end; 1204 1205 /* file size of the special /dev/zero is 0, let's assign one manually */ 1206 if (i == 0) 1207 file_size = 3*page_size; 1208 else 1209 file_size = stat_buf.st_size; 1210 1211 offset = file_size - 1; 1212 if (offset < 0) 1213 offset = 0; 1214 length = file_size - offset; 1215 pa_offset = offset & ~(page_size - 1); 1216 mem_length = length + offset - pa_offset; 1217 1218 mem = mmap(NULL, mem_length, PROT_READ, MAP_SHARED, fd, pa_offset); 1219 if (mem == MAP_FAILED) { 1220 ret = 1; 1221 goto end; 1222 } 1223 1224 mem = mremap(mem, mem_length, mem_length * 2, MREMAP_MAYMOVE, 0); 1225 if (mem == MAP_FAILED) { 1226 munmap(mem, mem_length); 1227 ret = 1; 1228 goto end; 1229 } 1230 1231 ret = munmap(mem, mem_length * 2); 1232 1233 end: 1234 close(fd); 1235 return !!ret; 1236 } 1237 1238 int test_pipe(void) 1239 { 1240 const char *const msg = "hello, nolibc"; 1241 int pipefd[2]; 1242 char buf[32]; 1243 size_t len; 1244 1245 if (pipe(pipefd) == -1) 1246 return 1; 1247 1248 write(pipefd[1], msg, strlen(msg)); 1249 close(pipefd[1]); 1250 len = read(pipefd[0], buf, sizeof(buf)); 1251 close(pipefd[0]); 1252 1253 if (len != strlen(msg)) 1254 return 1; 1255 1256 return !!memcmp(buf, msg, len); 1257 } 1258 1259 int test_rlimit(void) 1260 { 1261 struct rlimit rlim = { 1262 .rlim_cur = 1 << 20, 1263 .rlim_max = 1 << 21, 1264 }; 1265 int ret; 1266 1267 ret = setrlimit(RLIMIT_CORE, &rlim); 1268 if (ret) 1269 return -1; 1270 1271 rlim.rlim_cur = 0; 1272 rlim.rlim_max = 0; 1273 1274 ret = getrlimit(RLIMIT_CORE, &rlim); 1275 if (ret) 1276 return -1; 1277 1278 if (rlim.rlim_cur != 1 << 20) 1279 return -1; 1280 if (rlim.rlim_max != 1 << 21) 1281 return -1; 1282 1283 return 0; 1284 } 1285 1286 int test_openat(void) 1287 { 1288 int dev, null; 1289 1290 dev = openat(AT_FDCWD, "/dev", O_DIRECTORY); 1291 if (dev < 0) 1292 return -1; 1293 1294 null = openat(dev, "null", O_RDONLY); 1295 close(dev); 1296 if (null < 0) 1297 return -1; 1298 1299 close(null); 1300 return 0; 1301 } 1302 1303 int test_namespace(void) 1304 { 1305 int original_ns, new_ns, ret; 1306 ino_t original_ns_ino; 1307 struct stat stat_buf; 1308 1309 original_ns = open("/proc/self/ns/uts", O_RDONLY); 1310 if (original_ns == -1) 1311 return -1; 1312 1313 ret = fstat(original_ns, &stat_buf); 1314 if (ret) 1315 goto out; 1316 1317 original_ns_ino = stat_buf.st_ino; 1318 1319 ret = unshare(CLONE_NEWUTS); 1320 if (ret) 1321 goto out; 1322 1323 new_ns = open("/proc/self/ns/uts", O_RDONLY); 1324 if (new_ns == -1) { 1325 ret = new_ns; 1326 goto out; 1327 } 1328 1329 ret = fstat(new_ns, &stat_buf); 1330 close(new_ns); 1331 if (ret) 1332 goto out; 1333 1334 if (stat_buf.st_ino == original_ns_ino) { 1335 errno = EINVAL; 1336 ret = -1; 1337 goto out; 1338 } 1339 1340 ret = setns(original_ns, CLONE_NEWUTS); 1341 if (ret) 1342 goto out; 1343 1344 new_ns = open("/proc/self/ns/uts", O_RDONLY); 1345 if (new_ns == -1) { 1346 ret = new_ns; 1347 goto out; 1348 } 1349 1350 ret = fstat(new_ns, &stat_buf); 1351 if (ret) 1352 goto out; 1353 1354 close(new_ns); 1355 1356 if (stat_buf.st_ino != original_ns_ino) { 1357 errno = EINVAL; 1358 ret = -1; 1359 goto out; 1360 } 1361 1362 ret = 0; 1363 1364 out: 1365 close(original_ns); 1366 return ret; 1367 } 1368 1369 /* Run syscall tests between IDs <min> and <max>. 1370 * Return 0 on success, non-zero on failure. 1371 */ 1372 int run_syscall(int min, int max) 1373 { 1374 struct timeval tv; 1375 struct timezone tz; 1376 struct timespec ts; 1377 struct stat stat_buf; 1378 int euid0; 1379 int proc; 1380 int test; 1381 int tmp; 1382 struct iovec iov_one = { 1383 .iov_base = &tmp, 1384 .iov_len = 1, 1385 }; 1386 int ret = 0; 1387 void *p1, *p2; 1388 int has_gettid = 1; 1389 int has_brk; 1390 1391 /* <proc> indicates whether or not /proc is mounted */ 1392 proc = stat("/proc", &stat_buf) == 0; 1393 1394 /* this will be used to skip certain tests that can't be run unprivileged */ 1395 euid0 = geteuid() == 0; 1396 1397 /* from 2.30, glibc provides gettid() */ 1398 #if defined(__GLIBC_MINOR__) && defined(__GLIBC__) 1399 has_gettid = __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 30); 1400 #endif 1401 1402 /* on musl setting brk()/sbrk() always fails */ 1403 has_brk = brk(0) == 0; 1404 1405 for (test = min; test >= 0 && test <= max; test++) { 1406 int llen = 0; /* line length */ 1407 1408 /* avoid leaving empty lines below, this will insert holes into 1409 * test numbers. 1410 */ 1411 switch (test + __LINE__ + 1) { 1412 CASE_TEST(access); EXPECT_SYSZR(proc, access("/proc/self", R_OK)); break; 1413 CASE_TEST(access_bad); EXPECT_SYSER(proc, access("/proc/self", W_OK), -1, EPERM); break; 1414 CASE_TEST(clock_getres); EXPECT_SYSZR(1, clock_getres(CLOCK_MONOTONIC, &ts)); break; 1415 CASE_TEST(clock_gettime); EXPECT_SYSZR(1, clock_gettime(CLOCK_MONOTONIC, &ts)); break; 1416 CASE_TEST(clock_settime); EXPECT_SYSER(1, clock_settime(CLOCK_MONOTONIC, &ts), -1, EINVAL); break; 1417 CASE_TEST(getpid); EXPECT_SYSNE(1, getpid(), -1); break; 1418 CASE_TEST(getppid); EXPECT_SYSNE(1, getppid(), -1); break; 1419 CASE_TEST(gettid); EXPECT_SYSNE(has_gettid, gettid(), -1); break; 1420 CASE_TEST(getpgid_self); EXPECT_SYSNE(1, getpgid(0), -1); break; 1421 CASE_TEST(getpgid_bad); EXPECT_SYSER(1, getpgid(-1), -1, ESRCH); break; 1422 CASE_TEST(kill_0); EXPECT_SYSZR(1, kill(getpid(), 0)); break; 1423 CASE_TEST(kill_CONT); EXPECT_SYSZR(1, kill(getpid(), 0)); break; 1424 CASE_TEST(kill_BADPID); EXPECT_SYSER(1, kill(INT_MAX, 0), -1, ESRCH); break; 1425 CASE_TEST(sbrk_0); EXPECT_PTRNE(has_brk, sbrk(0), (void *)-1); break; 1426 CASE_TEST(sbrk); if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(has_brk, (p2 == (void *)-1) || p2 == p1); break; 1427 CASE_TEST(brk); EXPECT_SYSZR(has_brk, brk(sbrk(0))); break; 1428 CASE_TEST(chdir_root); EXPECT_SYSZR(1, chdir("/")); chdir(getenv("PWD")); break; 1429 CASE_TEST(chdir_dot); EXPECT_SYSZR(1, chdir(".")); break; 1430 CASE_TEST(chdir_blah); EXPECT_SYSER(1, chdir("/blah"), -1, ENOENT); break; 1431 CASE_TEST(chmod_argv0); EXPECT_SYSZR(1, chmod(argv0, 0555)); break; 1432 CASE_TEST(chmod_self); EXPECT_SYSER(proc, chmod("/proc/self", 0555), -1, EPERM); break; 1433 CASE_TEST(chown_self); EXPECT_SYSER(proc, chown("/proc/self", 0, 0), -1, EPERM); break; 1434 CASE_TEST(chroot_root); EXPECT_SYSZR(euid0, chroot("/")); break; 1435 CASE_TEST(chroot_blah); EXPECT_SYSER(1, chroot("/proc/self/blah"), -1, ENOENT); break; 1436 CASE_TEST(chroot_exe); EXPECT_SYSER(1, chroot(argv0), -1, ENOTDIR); break; 1437 CASE_TEST(clock_nanosleep); ts.tv_nsec = -1; EXPECT_EQ(1, EINVAL, clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL)); break; 1438 CASE_TEST(close_m1); EXPECT_SYSER(1, close(-1), -1, EBADF); break; 1439 CASE_TEST(close_dup); EXPECT_SYSZR(1, close(dup(0))); break; 1440 CASE_TEST(dup_0); tmp = dup(0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; 1441 CASE_TEST(dup_m1); tmp = dup(-1); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; 1442 CASE_TEST(dup2_0); tmp = dup2(0, 100); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; 1443 CASE_TEST(dup2_m1); tmp = dup2(-1, 100); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; 1444 CASE_TEST(dup3_0); tmp = dup3(0, 100, 0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; 1445 CASE_TEST(dup3_m1); tmp = dup3(-1, 100, 0); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; 1446 CASE_TEST(execve_root); EXPECT_SYSER(1, execve("/", (char*[]){ [0] = "/", [1] = NULL }, NULL), -1, EACCES); break; 1447 CASE_TEST(fchdir_stdin); EXPECT_SYSER(1, fchdir(STDIN_FILENO), -1, ENOTDIR); break; 1448 CASE_TEST(fchdir_badfd); EXPECT_SYSER(1, fchdir(-1), -1, EBADF); break; 1449 CASE_TEST(file_stream); EXPECT_SYSZR(1, test_file_stream()); break; 1450 CASE_TEST(file_stream_wsr); EXPECT_SYSZR(1, test_file_stream_wsr()); break; 1451 CASE_TEST(fork); EXPECT_SYSZR(1, test_fork(FORK_STANDARD)); break; 1452 CASE_TEST(getdents64_root); EXPECT_SYSNE(1, test_getdents64("/"), -1); break; 1453 CASE_TEST(getdents64_null); EXPECT_SYSER(1, test_getdents64("/dev/null"), -1, ENOTDIR); break; 1454 CASE_TEST(directories); EXPECT_SYSZR(is_nolibc && proc, test_dirent()); break; 1455 CASE_TEST(getrandom); EXPECT_SYSZR(1, test_getrandom()); break; 1456 CASE_TEST(gettimeofday_tv); EXPECT_SYSZR(1, gettimeofday(&tv, NULL)); break; 1457 CASE_TEST(gettimeofday_tv_tz);EXPECT_SYSZR(1, gettimeofday(&tv, &tz)); break; 1458 CASE_TEST(getpagesize); EXPECT_SYSZR(1, test_getpagesize()); break; 1459 CASE_TEST(ioctl_tiocinq); EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break; 1460 CASE_TEST(link_root1); EXPECT_SYSER(1, link("/", "/"), -1, EEXIST); break; 1461 CASE_TEST(link_blah); EXPECT_SYSER(1, link("/proc/self/blah", "/blah"), -1, ENOENT); break; 1462 CASE_TEST(link_dir); EXPECT_SYSER(euid0, link("/", "/blah"), -1, EPERM); break; 1463 CASE_TEST(link_cross); EXPECT_SYSER(proc, link("/proc/self/cmdline", "/blah"), -1, EXDEV); break; 1464 CASE_TEST(lseek_m1); EXPECT_SYSER(1, lseek(-1, 0, SEEK_SET), -1, EBADF); break; 1465 CASE_TEST(lseek_0); EXPECT_SYSER(1, lseek(0, 0, SEEK_SET), -1, ESPIPE); break; 1466 CASE_TEST(mkdir_root); EXPECT_SYSER(1, mkdir("/", 0755), -1, EEXIST); break; 1467 CASE_TEST(mmap_bad); EXPECT_PTRER(1, mmap(NULL, 0, PROT_READ, MAP_PRIVATE, 0, 0), MAP_FAILED, EINVAL); break; 1468 CASE_TEST(munmap_bad); EXPECT_SYSER(1, munmap(NULL, 0), -1, EINVAL); break; 1469 CASE_TEST(mmap_munmap_good); EXPECT_SYSZR(1, test_mmap_munmap()); break; 1470 CASE_TEST(nanosleep); ts.tv_nsec = -1; EXPECT_SYSER(1, nanosleep(&ts, NULL), -1, EINVAL); break; 1471 CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", O_RDONLY), -1); if (tmp != -1) close(tmp); break; 1472 CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", O_RDONLY), -1, ENOENT); if (tmp != -1) close(tmp); break; 1473 CASE_TEST(openat_dir); EXPECT_SYSZR(1, test_openat()); break; 1474 CASE_TEST(pipe); EXPECT_SYSZR(1, test_pipe()); break; 1475 CASE_TEST(poll_null); EXPECT_SYSZR(1, poll(NULL, 0, 0)); break; 1476 CASE_TEST(poll_stdout); EXPECT_SYSNE(1, ({ struct pollfd fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break; 1477 CASE_TEST(poll_fault); EXPECT_SYSER(1, poll(NULL, 1, 0), -1, EFAULT); break; 1478 CASE_TEST(prctl); EXPECT_SYSER(1, prctl(PR_SET_NAME, (unsigned long)NULL, 0, 0, 0), -1, EFAULT); break; 1479 CASE_TEST(read_badf); EXPECT_SYSER(1, read(-1, &tmp, 1), -1, EBADF); break; 1480 CASE_TEST(rlimit); EXPECT_SYSZR(1, test_rlimit()); break; 1481 CASE_TEST(rmdir_blah); EXPECT_SYSER(1, rmdir("/blah"), -1, ENOENT); break; 1482 CASE_TEST(sched_yield); EXPECT_SYSZR(1, sched_yield()); break; 1483 CASE_TEST(select_null); EXPECT_SYSZR(1, ({ struct timeval tv = { 0 }; select(0, NULL, NULL, NULL, &tv); })); break; 1484 CASE_TEST(select_stdout); EXPECT_SYSNE(1, ({ fd_set fds; FD_ZERO(&fds); FD_SET(1, &fds); select(2, NULL, &fds, NULL, NULL); }), -1); break; 1485 CASE_TEST(select_fault); EXPECT_SYSER(1, select(1, (void *)1, NULL, NULL, 0), -1, EFAULT); break; 1486 CASE_TEST(stat_blah); EXPECT_SYSER(1, stat("/proc/self/blah", &stat_buf), -1, ENOENT); break; 1487 CASE_TEST(stat_fault); EXPECT_SYSER(1, stat(NULL, &stat_buf), -1, EFAULT); break; 1488 CASE_TEST(stat_rdev); EXPECT_SYSZR(1, ({ int ret = stat("/dev/null", &stat_buf); ret ?: stat_buf.st_rdev != makedev(1, 3); })); break; 1489 CASE_TEST(stat_timestamps); EXPECT_SYSZR(1, test_stat_timestamps()); break; 1490 CASE_TEST(symlink_root); EXPECT_SYSER(1, symlink("/", "/"), -1, EEXIST); break; 1491 CASE_TEST(timer); EXPECT_SYSZR(1, test_timer()); break; 1492 CASE_TEST(timerfd); EXPECT_SYSZR(1, test_timerfd()); break; 1493 CASE_TEST(uname); EXPECT_SYSZR(proc, test_uname()); break; 1494 CASE_TEST(uname_fault); EXPECT_SYSER(1, uname(NULL), -1, EFAULT); break; 1495 CASE_TEST(unlink_root); EXPECT_SYSER(1, unlink("/"), -1, EISDIR); break; 1496 CASE_TEST(unlink_blah); EXPECT_SYSER(1, unlink("/proc/self/blah"), -1, ENOENT); break; 1497 CASE_TEST(vfork); EXPECT_SYSZR(1, test_fork(FORK_VFORK)); break; 1498 CASE_TEST(wait_child); EXPECT_SYSER(1, wait(&tmp), -1, ECHILD); break; 1499 CASE_TEST(waitpid_min); EXPECT_SYSER(1, waitpid(INT_MIN, &tmp, WNOHANG), -1, ESRCH); break; 1500 CASE_TEST(waitpid_child); EXPECT_SYSER(1, waitpid(getpid(), &tmp, WNOHANG), -1, ECHILD); break; 1501 CASE_TEST(write_badf); EXPECT_SYSER(1, write(-1, &tmp, 1), -1, EBADF); break; 1502 CASE_TEST(write_zero); EXPECT_SYSZR(1, write(1, &tmp, 0)); break; 1503 CASE_TEST(readv_badf); EXPECT_SYSER(1, readv(-1, &iov_one, 1), -1, EBADF); break; 1504 CASE_TEST(readv_zero); EXPECT_SYSZR(1, readv(0, NULL, 0)); break; 1505 CASE_TEST(writev_badf); EXPECT_SYSER(1, writev(-1, &iov_one, 1), -1, EBADF); break; 1506 CASE_TEST(writev_zero); EXPECT_SYSZR(1, writev(1, NULL, 0)); break; 1507 CASE_TEST(ptrace); EXPECT_SYSER(1, ptrace(PTRACE_CONT, getpid(), NULL, NULL), -1, ESRCH); break; 1508 CASE_TEST(syscall_noargs); EXPECT_SYSEQ(1, syscall(__NR_getpid), getpid()); break; 1509 CASE_TEST(syscall_args); EXPECT_SYSER(1, syscall(__NR_statx, 0, NULL, 0, 0, NULL), -1, EFAULT); break; 1510 CASE_TEST(namespace); EXPECT_SYSZR(euid0 && proc, test_namespace()); break; 1511 case __LINE__: 1512 return ret; /* must be last */ 1513 /* note: do not set any defaults so as to permit holes above */ 1514 } 1515 } 1516 return ret; 1517 } 1518 1519 int test_difftime(void) 1520 { 1521 if (difftime(200., 100.) != 100.) 1522 return 1; 1523 1524 if (difftime(100., 200.) != -100.) 1525 return 1; 1526 1527 return 0; 1528 } 1529 1530 int test_time_types(void) 1531 { 1532 #ifdef NOLIBC 1533 struct __kernel_timespec kts; 1534 struct timespec ts; 1535 1536 if (!__builtin_types_compatible_p(time_t, __kernel_time64_t)) 1537 return 1; 1538 1539 if (sizeof(ts) != sizeof(kts)) 1540 return 1; 1541 1542 if (!__builtin_types_compatible_p(__typeof__(ts.tv_sec), __typeof__(kts.tv_sec))) 1543 return 1; 1544 1545 if (!__builtin_types_compatible_p(__typeof__(ts.tv_nsec), __typeof__(kts.tv_nsec))) 1546 return 1; 1547 1548 if (offsetof(__typeof__(ts), tv_sec) != offsetof(__typeof__(kts), tv_sec)) 1549 return 1; 1550 1551 if (offsetof(__typeof__(ts), tv_nsec) != offsetof(__typeof__(kts), tv_nsec)) 1552 return 1; 1553 #endif /* NOLIBC */ 1554 1555 return 0; 1556 } 1557 1558 int test_malloc(void) 1559 { 1560 size_t sz_array1, sz_array2, sz_array3; 1561 int *array1, *array2, *array3; 1562 int pagesize = getpagesize(); 1563 size_t idx; 1564 1565 if (pagesize < 0) 1566 return 1; 1567 1568 /* Dependent on the page size, as that is the granularity of our allocator. */ 1569 sz_array1 = pagesize / 2; 1570 array1 = malloc(sz_array1 * sizeof(*array1)); 1571 if (!array1) 1572 return 2; 1573 1574 for (idx = 0; idx < sz_array1; idx++) 1575 array1[idx] = idx; 1576 1577 sz_array2 = pagesize * 2; 1578 array2 = calloc(sz_array2, sizeof(*array2)); 1579 if (!array2) { 1580 free(array1); 1581 return 3; 1582 } 1583 1584 for (idx = 0; idx < sz_array2; idx++) { 1585 if (array2[idx] != 0) { 1586 free(array2); 1587 return 4; 1588 } 1589 array2[idx] = idx + sz_array1; 1590 } 1591 1592 /* Resize array1 into array3 and append array2 at the end. */ 1593 sz_array3 = sz_array1 + sz_array2; 1594 array3 = realloc(array1, sz_array3 * sizeof(*array3)); 1595 if (!array3) { 1596 free(array2); 1597 free(array1); 1598 return 5; 1599 } 1600 memcpy(array3 + sz_array1, array2, sizeof(*array2) * sz_array2); 1601 free(array2); 1602 1603 /* The contents must be contiguous now. */ 1604 for (idx = 0; idx < sz_array3; idx++) 1605 if (array3[idx] != (int)idx) 1606 return 6; 1607 1608 free(array3); 1609 return 0; 1610 } 1611 1612 int run_stdlib(int min, int max) 1613 { 1614 int test; 1615 int ret = 0; 1616 1617 for (test = min; test >= 0 && test <= max; test++) { 1618 int llen = 0; /* line length */ 1619 1620 /* For functions that take a long buffer, like strlcat() 1621 * Add some more chars after the \0, to test functions that overwrite the buffer set 1622 * the \0 at the exact right position. 1623 */ 1624 char buf[11] = "test123456"; 1625 buf[4] = '\0'; 1626 1627 1628 /* avoid leaving empty lines below, this will insert holes into 1629 * test numbers. 1630 */ 1631 switch (test + __LINE__ + 1) { 1632 CASE_TEST(getenv_TERM); EXPECT_STRNZ(1, getenv("TERM")); break; 1633 CASE_TEST(getenv_blah); EXPECT_STRZR(1, getenv("blah")); break; 1634 CASE_TEST(setcmp_blah_blah); EXPECT_EQ(1, strcmp("blah", "blah"), 0); break; 1635 CASE_TEST(setcmp_blah_blah2); EXPECT_NE(1, strcmp("blah", "blah2"), 0); break; 1636 CASE_TEST(setncmp_blah_blah); EXPECT_EQ(1, strncmp("blah", "blah", 10), 0); break; 1637 CASE_TEST(setncmp_blah_blah4); EXPECT_EQ(1, strncmp("blah", "blah4", 4), 0); break; 1638 CASE_TEST(setncmp_blah_blah5); EXPECT_NE(1, strncmp("blah", "blah5", 5), 0); break; 1639 CASE_TEST(setncmp_blah_blah6); EXPECT_NE(1, strncmp("blah", "blah6", 6), 0); break; 1640 CASE_TEST(strchr_foobar_o); EXPECT_STREQ(1, strchr("foobar", 'o'), "oobar"); break; 1641 CASE_TEST(strchr_foobar_z); EXPECT_STRZR(1, strchr("foobar", 'z')); break; 1642 CASE_TEST(strrchr_foobar_o); EXPECT_STREQ(1, strrchr("foobar", 'o'), "obar"); break; 1643 CASE_TEST(strrchr_foobar_z); EXPECT_STRZR(1, strrchr("foobar", 'z')); break; 1644 CASE_TEST(strlcat_0); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 0), buf, 3, "test"); break; 1645 CASE_TEST(strlcat_1); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 1), buf, 4, "test"); break; 1646 CASE_TEST(strlcat_5); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 5), buf, 7, "test"); break; 1647 CASE_TEST(strlcat_6); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 6), buf, 7, "testb"); break; 1648 CASE_TEST(strlcat_7); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 7), buf, 7, "testba"); break; 1649 CASE_TEST(strlcat_8); EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 8), buf, 7, "testbar"); break; 1650 CASE_TEST(strlcpy_0); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 0), buf, 3, "test"); break; 1651 CASE_TEST(strlcpy_1); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 1), buf, 3, ""); break; 1652 CASE_TEST(strlcpy_2); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 2), buf, 3, "b"); break; 1653 CASE_TEST(strlcpy_3); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 3), buf, 3, "ba"); break; 1654 CASE_TEST(strlcpy_4); EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 4), buf, 3, "bar"); break; 1655 CASE_TEST(strstr_foobar_foo); EXPECT_STREQ(1, strstr("foobar", "foo"), "foobar"); break; 1656 CASE_TEST(strstr_foobar_bar); EXPECT_STREQ(1, strstr("foobar", "bar"), "bar"); break; 1657 CASE_TEST(strstr_foobar_baz); EXPECT_PTREQ(1, strstr("foobar", "baz"), NULL); break; 1658 CASE_TEST(memcmp_20_20); EXPECT_EQ(1, memcmp("aaa\x20", "aaa\x20", 4), 0); break; 1659 CASE_TEST(memcmp_20_60); EXPECT_LT(1, memcmp("aaa\x20", "aaa\x60", 4), 0); break; 1660 CASE_TEST(memcmp_60_20); EXPECT_GT(1, memcmp("aaa\x60", "aaa\x20", 4), 0); break; 1661 CASE_TEST(memcmp_20_e0); EXPECT_LT(1, memcmp("aaa\x20", "aaa\xe0", 4), 0); break; 1662 CASE_TEST(memcmp_e0_20); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x20", 4), 0); break; 1663 CASE_TEST(memcmp_80_e0); EXPECT_LT(1, memcmp("aaa\x80", "aaa\xe0", 4), 0); break; 1664 CASE_TEST(memcmp_e0_80); EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x80", 4), 0); break; 1665 CASE_TEST(limit_int8_max); EXPECT_EQ(1, INT8_MAX, (int8_t) 0x7f); break; 1666 CASE_TEST(limit_int8_min); EXPECT_EQ(1, INT8_MIN, (int8_t) 0x80); break; 1667 CASE_TEST(limit_uint8_max); EXPECT_EQ(1, UINT8_MAX, (uint8_t) 0xff); break; 1668 CASE_TEST(limit_int16_max); EXPECT_EQ(1, INT16_MAX, (int16_t) 0x7fff); break; 1669 CASE_TEST(limit_int16_min); EXPECT_EQ(1, INT16_MIN, (int16_t) 0x8000); break; 1670 CASE_TEST(limit_uint16_max); EXPECT_EQ(1, UINT16_MAX, (uint16_t) 0xffff); break; 1671 CASE_TEST(limit_int32_max); EXPECT_EQ(1, INT32_MAX, (int32_t) 0x7fffffff); break; 1672 CASE_TEST(limit_int32_min); EXPECT_EQ(1, INT32_MIN, (int32_t) 0x80000000); break; 1673 CASE_TEST(limit_uint32_max); EXPECT_EQ(1, UINT32_MAX, (uint32_t) 0xffffffff); break; 1674 CASE_TEST(limit_int64_max); EXPECT_EQ(1, INT64_MAX, (int64_t) 0x7fffffffffffffff); break; 1675 CASE_TEST(limit_int64_min); EXPECT_EQ(1, INT64_MIN, (int64_t) 0x8000000000000000); break; 1676 CASE_TEST(limit_uint64_max); EXPECT_EQ(1, UINT64_MAX, (uint64_t) 0xffffffffffffffff); break; 1677 CASE_TEST(limit_int_least8_max); EXPECT_EQ(1, INT_LEAST8_MAX, (int_least8_t) 0x7f); break; 1678 CASE_TEST(limit_int_least8_min); EXPECT_EQ(1, INT_LEAST8_MIN, (int_least8_t) 0x80); break; 1679 CASE_TEST(limit_uint_least8_max); EXPECT_EQ(1, UINT_LEAST8_MAX, (uint_least8_t) 0xff); break; 1680 CASE_TEST(limit_int_least16_max); EXPECT_EQ(1, INT_LEAST16_MAX, (int_least16_t) 0x7fff); break; 1681 CASE_TEST(limit_int_least16_min); EXPECT_EQ(1, INT_LEAST16_MIN, (int_least16_t) 0x8000); break; 1682 CASE_TEST(limit_uint_least16_max); EXPECT_EQ(1, UINT_LEAST16_MAX, (uint_least16_t) 0xffff); break; 1683 CASE_TEST(limit_int_least32_max); EXPECT_EQ(1, INT_LEAST32_MAX, (int_least32_t) 0x7fffffff); break; 1684 CASE_TEST(limit_int_least32_min); EXPECT_EQ(1, INT_LEAST32_MIN, (int_least32_t) 0x80000000); break; 1685 CASE_TEST(limit_uint_least32_max); EXPECT_EQ(1, UINT_LEAST32_MAX, (uint_least32_t) 0xffffffffU); break; 1686 CASE_TEST(limit_int_least64_min); EXPECT_EQ(1, INT_LEAST64_MIN, (int_least64_t) 0x8000000000000000LL); break; 1687 CASE_TEST(limit_int_least64_max); EXPECT_EQ(1, INT_LEAST64_MAX, (int_least64_t) 0x7fffffffffffffffLL); break; 1688 CASE_TEST(limit_uint_least64_max); EXPECT_EQ(1, UINT_LEAST64_MAX, (uint_least64_t) 0xffffffffffffffffULL); break; 1689 CASE_TEST(limit_int_fast8_max); EXPECT_EQ(1, INT_FAST8_MAX, (int_fast8_t) 0x7f); break; 1690 CASE_TEST(limit_int_fast8_min); EXPECT_EQ(1, INT_FAST8_MIN, (int_fast8_t) 0x80); break; 1691 CASE_TEST(limit_uint_fast8_max); EXPECT_EQ(1, UINT_FAST8_MAX, (uint_fast8_t) 0xff); break; 1692 CASE_TEST(limit_int_fast16_min); EXPECT_EQ(1, INT_FAST16_MIN, (int_fast16_t) SINT_MIN_OF_TYPE(int_fast16_t)); break; 1693 CASE_TEST(limit_int_fast16_max); EXPECT_EQ(1, INT_FAST16_MAX, (int_fast16_t) SINT_MAX_OF_TYPE(int_fast16_t)); break; 1694 CASE_TEST(limit_uint_fast16_max); EXPECT_EQ(1, UINT_FAST16_MAX, (uint_fast16_t) UINTPTR_MAX); break; 1695 CASE_TEST(limit_int_fast32_min); EXPECT_EQ(1, INT_FAST32_MIN, (int_fast32_t) SINT_MIN_OF_TYPE(int_fast32_t)); break; 1696 CASE_TEST(limit_int_fast32_max); EXPECT_EQ(1, INT_FAST32_MAX, (int_fast32_t) SINT_MAX_OF_TYPE(int_fast32_t)); break; 1697 CASE_TEST(limit_uint_fast32_max); EXPECT_EQ(1, UINT_FAST32_MAX, (uint_fast32_t) UINTPTR_MAX); break; 1698 CASE_TEST(limit_int_fast64_min); EXPECT_EQ(1, INT_FAST64_MIN, (int_fast64_t) INT64_MIN); break; 1699 CASE_TEST(limit_int_fast64_max); EXPECT_EQ(1, INT_FAST64_MAX, (int_fast64_t) INT64_MAX); break; 1700 CASE_TEST(limit_uint_fast64_max); EXPECT_EQ(1, UINT_FAST64_MAX, (uint_fast64_t) UINT64_MAX); break; 1701 CASE_TEST(sizeof_long_sane); EXPECT_EQ(1, sizeof(long) == 8 || sizeof(long) == 4, 1); break; 1702 CASE_TEST(limit_intptr_min); EXPECT_EQ(1, INTPTR_MIN, sizeof(long) == 8 ? (intptr_t) 0x8000000000000000LL : (intptr_t) 0x80000000); break; 1703 CASE_TEST(limit_intptr_max); EXPECT_EQ(1, INTPTR_MAX, sizeof(long) == 8 ? (intptr_t) 0x7fffffffffffffffLL : (intptr_t) 0x7fffffff); break; 1704 CASE_TEST(limit_uintptr_max); EXPECT_EQ(1, UINTPTR_MAX, sizeof(long) == 8 ? (uintptr_t) 0xffffffffffffffffULL : (uintptr_t) 0xffffffffU); break; 1705 CASE_TEST(limit_ptrdiff_min); EXPECT_EQ(1, PTRDIFF_MIN, sizeof(long) == 8 ? (ptrdiff_t) 0x8000000000000000LL : (ptrdiff_t) 0x80000000); break; 1706 CASE_TEST(limit_ptrdiff_max); EXPECT_EQ(1, PTRDIFF_MAX, sizeof(long) == 8 ? (ptrdiff_t) 0x7fffffffffffffffLL : (ptrdiff_t) 0x7fffffff); break; 1707 CASE_TEST(limit_size_max); EXPECT_EQ(1, SIZE_MAX, sizeof(long) == 8 ? (size_t) 0xffffffffffffffffULL : (size_t) 0xffffffffU); break; 1708 CASE_TEST(strtol_simple); EXPECT_STRTOX(1, strtol, "35", 10, 35, -1, 0); break; 1709 CASE_TEST(strtol_positive); EXPECT_STRTOX(1, strtol, "+35", 10, 35, -1, 0); break; 1710 CASE_TEST(strtol_negative); EXPECT_STRTOX(1, strtol, "-35", 10, -35, -1, 0); break; 1711 CASE_TEST(strtol_hex_auto); EXPECT_STRTOX(1, strtol, "0xFF", 0, 255, -1, 0); break; 1712 CASE_TEST(strtol_base36); EXPECT_STRTOX(1, strtol, "12yZ", 36, 50507, -1, 0); break; 1713 CASE_TEST(strtol_cutoff); EXPECT_STRTOX(1, strtol, "1234567890", 8, 342391, 7, 0); break; 1714 CASE_TEST(strtol_octal_auto); EXPECT_STRTOX(1, strtol, "011", 0, 9, -1, 0); break; 1715 CASE_TEST(strtol_hex_00); EXPECT_STRTOX(1, strtol, "0x00", 16, 0, -1, 0); break; 1716 CASE_TEST(strtol_hex_FF); EXPECT_STRTOX(1, strtol, "FF", 16, 255, -1, 0); break; 1717 CASE_TEST(strtol_hex_ff); EXPECT_STRTOX(1, strtol, "ff", 16, 255, -1, 0); break; 1718 CASE_TEST(strtol_hex_prefix); EXPECT_STRTOX(1, strtol, "0xFF", 16, 255, -1, 0); break; 1719 CASE_TEST(strtol_trailer); EXPECT_STRTOX(1, strtol, "35foo", 10, 35, 2, 0); break; 1720 CASE_TEST(strtol_overflow); EXPECT_STRTOX(1, strtol, "0x8000000000000000", 16, LONG_MAX, -1, ERANGE); break; 1721 CASE_TEST(strtol_underflow); EXPECT_STRTOX(1, strtol, "-0x8000000000000001", 16, LONG_MIN, -1, ERANGE); break; 1722 CASE_TEST(strtoul_negative); EXPECT_STRTOX(1, strtoul, "-0x1", 16, ULONG_MAX, 4, 0); break; 1723 CASE_TEST(strtoul_overflow); EXPECT_STRTOX(1, strtoul, "0x10000000000000000", 16, ULONG_MAX, -1, ERANGE); break; 1724 CASE_TEST(strerror_success); EXPECT_STREQ(is_nolibc, strerror(0), "errno=0"); break; 1725 CASE_TEST(strerror_EINVAL); EXPECT_STREQ(is_nolibc, strerror(EINVAL), "errno=22"); break; 1726 CASE_TEST(strerror_int_max); EXPECT_STREQ(is_nolibc, strerror(INT_MAX), "errno=2147483647"); break; 1727 CASE_TEST(strerror_int_min); EXPECT_STREQ(is_nolibc, strerror(INT_MIN), "errno=-2147483648"); break; 1728 CASE_TEST(tolower); EXPECT_EQ(1, tolower('A'), 'a'); break; 1729 CASE_TEST(tolower_noop); EXPECT_EQ(1, tolower('a'), 'a'); break; 1730 CASE_TEST(toupper); EXPECT_EQ(1, toupper('a'), 'A'); break; 1731 CASE_TEST(toupper_noop); EXPECT_EQ(1, toupper('A'), 'A'); break; 1732 CASE_TEST(abs); EXPECT_EQ(1, abs(-10), 10); break; 1733 CASE_TEST(abs_noop); EXPECT_EQ(1, abs(10), 10); break; 1734 CASE_TEST(difftime); EXPECT_ZR(1, test_difftime()); break; 1735 CASE_TEST(memchr_foobar6_o); EXPECT_STREQ(1, memchr("foobar", 'o', 6), "oobar"); break; 1736 CASE_TEST(memchr_foobar3_b); EXPECT_STRZR(1, memchr("foobar", 'b', 3)); break; 1737 CASE_TEST(time_types); EXPECT_ZR(is_nolibc, test_time_types()); break; 1738 CASE_TEST(makedev); EXPECT_EQ(1, makedev(0x12, 0x34), 0x1234); break; 1739 CASE_TEST(major); EXPECT_EQ(1, major(0x1234), 0x12); break; 1740 CASE_TEST(minor); EXPECT_EQ(1, minor(0x1234), 0x34); break; 1741 CASE_TEST(makedev_big); EXPECT_EQ(1, makedev(0x11223344, 0x55667788), 0x1122355667734488); break; 1742 CASE_TEST(major_big); EXPECT_EQ(1, major(0x1122355667734488), 0x11223344); break; 1743 CASE_TEST(minor_big); EXPECT_EQ(1, minor(0x1122355667734488), 0x55667788); break; 1744 CASE_TEST(malloc); EXPECT_ZR(1, test_malloc()); break; 1745 1746 case __LINE__: 1747 return ret; /* must be last */ 1748 /* note: do not set any defaults so as to permit holes above */ 1749 } 1750 } 1751 return ret; 1752 } 1753 1754 #define EXPECT_VFPRINTF(cond, expected, fmt, ...) \ 1755 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_vfprintf(llen, expected, fmt, ##__VA_ARGS__); } while (0) 1756 1757 #define VFPRINTF_LEN 25 1758 static int expect_vfprintf(int llen, const char *expected, const char *fmt, ...) 1759 { 1760 char buf[VFPRINTF_LEN + 80]; 1761 unsigned int cmp_len; 1762 va_list args; 1763 ssize_t written, expected_len; 1764 1765 /* Fill and terminate buf[] to check for overlong/absent writes */ 1766 memset(buf, 0xa5, sizeof(buf) - 1); 1767 buf[sizeof(buf) - 1] = 0; 1768 1769 va_start(args, fmt); 1770 /* Limit buffer length to test truncation */ 1771 written = vsnprintf(buf, VFPRINTF_LEN + 1, fmt, args); 1772 va_end(args); 1773 1774 llen += printf(" \"%s\"", buf); 1775 1776 expected_len = strlen(expected); 1777 if (expected_len > VFPRINTF_LEN) { 1778 /* Indicate truncated in test output */ 1779 llen += printf("+"); 1780 cmp_len = VFPRINTF_LEN; 1781 } else { 1782 cmp_len = expected_len; 1783 } 1784 1785 if (memcmp(expected, buf, cmp_len) || buf[cmp_len]) { 1786 llen += printf(" should be \"%.*s\"", VFPRINTF_LEN, expected); 1787 result(llen, FAIL); 1788 return 1; 1789 } 1790 1791 if (written != expected_len) { 1792 llen += printf(" written(%d) != %d", (int)written, (int)expected_len); 1793 result(llen, FAIL); 1794 return 1; 1795 } 1796 1797 /* Check for any overwrites after the actual data. */ 1798 while (++cmp_len < sizeof(buf) - 1) { 1799 if ((unsigned char)buf[cmp_len] != 0xa5) { 1800 llen += printf(" overwrote buf[%d] with 0x%x", cmp_len, buf[cmp_len]); 1801 result(llen, FAIL); 1802 return 1; 1803 } 1804 } 1805 1806 result(llen, OK); 1807 return 0; 1808 } 1809 1810 static int test_scanf(void) 1811 { 1812 unsigned long long ull; 1813 unsigned long ul; 1814 unsigned int u; 1815 long long ll; 1816 long l; 1817 void *p; 1818 int i; 1819 1820 /* return __LINE__ to point to the specific failure */ 1821 1822 /* test EOF */ 1823 if (sscanf("", "foo") != EOF) 1824 return __LINE__; 1825 1826 /* test simple literal without placeholder */ 1827 if (sscanf("foo", "foo") != 0) 1828 return __LINE__; 1829 1830 /* test single placeholder */ 1831 if (sscanf("123", "%d", &i) != 1) 1832 return __LINE__; 1833 1834 if (i != 123) 1835 return __LINE__; 1836 1837 /* test multiple place holders and separators */ 1838 if (sscanf("a123b456c0x90", "a%db%uc%p", &i, &u, &p) != 3) 1839 return __LINE__; 1840 1841 if (i != 123) 1842 return __LINE__; 1843 1844 if (u != 456) 1845 return __LINE__; 1846 1847 if (p != (void *)0x90) 1848 return __LINE__; 1849 1850 /* test space handling */ 1851 if (sscanf("a b1", "a b%d", &i) != 1) 1852 return __LINE__; 1853 1854 if (i != 1) 1855 return __LINE__; 1856 1857 /* test literal percent */ 1858 if (sscanf("a%1", "a%%%d", &i) != 1) 1859 return __LINE__; 1860 1861 if (i != 1) 1862 return __LINE__; 1863 1864 /* test stdint.h types */ 1865 if (sscanf("1|2|3|4|5|6", 1866 "%d|%ld|%lld|%u|%lu|%llu", 1867 &i, &l, &ll, &u, &ul, &ull) != 6) 1868 return __LINE__; 1869 1870 if (i != 1 || l != 2 || ll != 3 || 1871 u != 4 || ul != 5 || ull != 6) 1872 return __LINE__; 1873 1874 return 0; 1875 } 1876 1877 static int test_printf_error(void) 1878 { 1879 int fd, ret, saved_errno; 1880 1881 fd = open("/dev/full", O_RDWR); 1882 if (fd == -1) 1883 return 1; 1884 1885 errno = 0; 1886 ret = dprintf(fd, "foo"); 1887 saved_errno = errno; 1888 close(fd); 1889 1890 if (ret != -1) 1891 return 2; 1892 1893 if (saved_errno != ENOSPC) 1894 return 3; 1895 1896 return 0; 1897 } 1898 1899 int test_asprintf(void) 1900 { 1901 char *str; 1902 int ret; 1903 1904 ret = asprintf(&str, "foo%s", "bar"); 1905 if (ret == -1) 1906 return 1; 1907 1908 if (ret != 6) { 1909 free(str); 1910 return 2; 1911 } 1912 1913 if (memcmp(str, "foobar", 6) != 0) { 1914 free(str); 1915 return 3; 1916 } 1917 1918 free(str); 1919 return 0; 1920 } 1921 1922 static int run_printf(int min, int max) 1923 { 1924 int test; 1925 int ret = 0; 1926 1927 for (test = min; test >= 0 && test <= max; test++) { 1928 int llen = 0; /* line length */ 1929 1930 /* avoid leaving empty lines below, this will insert holes into 1931 * test numbers. 1932 */ 1933 switch (test + __LINE__ + 1) { 1934 CASE_TEST(empty); EXPECT_VFPRINTF(1, "", ""); break; 1935 CASE_TEST(simple); EXPECT_VFPRINTF(1, "foo", "foo"); break; 1936 CASE_TEST(string); EXPECT_VFPRINTF(1, "foo", "%s", "foo"); break; 1937 CASE_TEST(number); EXPECT_VFPRINTF(1, "1234", "%d", 1234); break; 1938 CASE_TEST(negnumber); EXPECT_VFPRINTF(1, "-1234", "%d", -1234); break; 1939 CASE_TEST(num_sign); EXPECT_VFPRINTF(1, "| 1|+2|+3|+4|5|", "|% d|%+d|% +d|%+ d|%#d|", 1, 2, 3, 4, 5); break; 1940 CASE_TEST(unsigned); EXPECT_VFPRINTF(1, "12345", "%u", 12345); break; 1941 CASE_TEST(signed_max); EXPECT_VFPRINTF(1, "2147483647", "%i", ~0u >> 1); break; 1942 CASE_TEST(signed_min); EXPECT_VFPRINTF(1, "-2147483648", "%i", (~0u >> 1) + 1); break; 1943 CASE_TEST(unsigned_max); EXPECT_VFPRINTF(1, "4294967295", "%u", ~0u); break; 1944 CASE_TEST(char); EXPECT_VFPRINTF(1, "|c|d| e|", "|%c|%.0c|%4c|", 'c', 'd', 'e'); break; 1945 CASE_TEST(octal); EXPECT_VFPRINTF(1, "|17| 0033||", "|%o|%6.4o|%.0o|", 017, 033, 0); break; 1946 CASE_TEST(octal_max); EXPECT_VFPRINTF(1, "1777777777777777777777", "%llo", ~0ULL); break; 1947 CASE_TEST(octal_alt); EXPECT_VFPRINTF(1, "|0|01|02|034|0|0|", "|%#o|%#o|%#02o|%#02o|%#.0o|%0-#o|", 0, 1, 2, 034, 0, 0); break; 1948 CASE_TEST(hex_nolibc); EXPECT_VFPRINTF(is_nolibc, "|f|d|", "|%x|%X|", 0xf, 0xd); break; 1949 CASE_TEST(hex_libc); EXPECT_VFPRINTF(!is_nolibc, "|f|D|", "|%x|%X|", 0xf, 0xd); break; 1950 CASE_TEST(hex_alt); EXPECT_VFPRINTF(1, "|0x1| 0x2| 0|", "|%#x|%#5x|%#5x|", 1, 2, 0); break; 1951 CASE_TEST(hex_alt_prec); EXPECT_VFPRINTF(1, "| 0x02|0x03| 0x123|", "|%#5.2x|%#04x|%#6.2x|", 2, 3, 0x123); break; 1952 CASE_TEST(hex_0_alt); EXPECT_VFPRINTF(1, "|0|0000| 00|", "|%#x|%#04x|%#5.2x|", 0, 0, 0); break; 1953 CASE_TEST(pointer); EXPECT_VFPRINTF(1, "0x1", "%p", (void *) 0x1); break; 1954 CASE_TEST(pointer_NULL); EXPECT_VFPRINTF(is_nolibc || is_glibc, "|(nil)|(nil)|", "|%p|%.4p|", (void *)0, (void *)0); break; 1955 CASE_TEST(string_NULL); EXPECT_VFPRINTF(is_nolibc || is_glibc, "|(null)||(null)|", "|%s|%.5s|%.6s|", (void *)0, (void *)0, (void *)0); break; 1956 CASE_TEST(percent); EXPECT_VFPRINTF(1, "a%d42%69%", "a%%d%d%%%d%%", 42, 69); break; 1957 CASE_TEST(perc_qual); EXPECT_VFPRINTF(is_nolibc || is_glibc, "a%d2", "a%-14l%d%d", 2); break; 1958 CASE_TEST(invalid); EXPECT_VFPRINTF(is_nolibc || is_glibc, "a%12yx3%y42%P", "a%12yx%d%y%d%P", 3, 42); break; 1959 CASE_TEST(intmax_max); EXPECT_VFPRINTF(1, "9223372036854775807", "%lld", ~0ULL >> 1); break; 1960 CASE_TEST(intmax_min); EXPECT_VFPRINTF(is_nolibc || is_glibc, "-9223372036854775808", "%Li", (~0ULL >> 1) + 1); break; 1961 CASE_TEST(uintmax_max); EXPECT_VFPRINTF(1, "18446744073709551615", "%ju", ~0ULL); break; 1962 CASE_TEST(truncation); EXPECT_VFPRINTF(1, "012345678901234567890123456789", "%s", "012345678901234567890123456789"); break; 1963 CASE_TEST(string_width); EXPECT_VFPRINTF(1, " 1", "%10s", "1"); break; 1964 CASE_TEST(string_trunc); EXPECT_VFPRINTF(1, " 12345", "%10.5s", "1234567890"); break; 1965 CASE_TEST(string_var); EXPECT_VFPRINTF(1, "| ab|ef | ij|kl |", "|%*.*s|%*.*s|%*.*s|%*.*s|", 3, 2, "abcd", -3, 2, "efgh", 3, -1, "ij", -3, -1, "kl"); break; 1966 CASE_TEST(number_width); EXPECT_VFPRINTF(1, " 1", "%10d", 1); break; 1967 CASE_TEST(number_left); EXPECT_VFPRINTF(1, "|-5 |", "|%-8d|", -5); break; 1968 CASE_TEST(string_align); EXPECT_VFPRINTF(1, "|foo |", "|%-8s|", "foo"); break; 1969 CASE_TEST(width_trunc); EXPECT_VFPRINTF(1, " 1", "%30d", 1); break; 1970 CASE_TEST(width_tr_lft); EXPECT_VFPRINTF(1, "1 ", "%-30d", 1); break; 1971 CASE_TEST(number_pad); EXPECT_VFPRINTF(1, "0000000005", "%010d", 5); break; 1972 CASE_TEST(number_pad); EXPECT_VFPRINTF(1, "|0000000005|0x1234|", "|%010d|%#01x|", 5, 0x1234); break; 1973 CASE_TEST(num_pad_neg); EXPECT_VFPRINTF(1, "-000000005", "%010d", -5); break; 1974 CASE_TEST(num_pad_hex); EXPECT_VFPRINTF(1, "00fffffffb", "%010x", -5); break; 1975 CASE_TEST(num_pad_trunc);EXPECT_VFPRINTF(is_nolibc, " 0000000000000000000000000000005", "%035d", 5); break; /* max 31 '0' can be added */ 1976 CASE_TEST(num_p_tr_libc);EXPECT_VFPRINTF(!is_nolibc, "00000000000000000000000000000000005", "%035d", 5); break; 1977 CASE_TEST(number_prec); EXPECT_VFPRINTF(1, " 00005", "%10.5d", 5); break; 1978 CASE_TEST(num_prec_neg); EXPECT_VFPRINTF(1, " -00005", "%10.5d", -5); break; 1979 CASE_TEST(number_var); EXPECT_VFPRINTF(1, "| -00005|5 |", "|%*.*d|%*.*d|", 10, 5, -5, -2, -10, 5); break; 1980 CASE_TEST(num_0_prec_0); EXPECT_VFPRINTF(1, "|| |+||||", "|%.0d|% .0d|%+.0d|%.0u|%.0x|%#.0x|", 0, 0, 0, 0, 0, 0); break; 1981 CASE_TEST(errno); errno = 22; EXPECT_VFPRINTF(is_nolibc, "errno=22", "%m"); break; 1982 CASE_TEST(errno-neg); errno = -22; EXPECT_VFPRINTF(is_nolibc, "errno=-22 ", "%-12m"); break; 1983 CASE_TEST(scanf); EXPECT_ZR(1, test_scanf()); break; 1984 CASE_TEST(printf_error); EXPECT_ZR(1, test_printf_error()); break; 1985 CASE_TEST(asprintf); EXPECT_ZR(1, test_asprintf()); break; 1986 case __LINE__: 1987 return ret; /* must be last */ 1988 /* note: do not set any defaults so as to permit holes above */ 1989 } 1990 } 1991 return ret; 1992 } 1993 1994 __attribute__((no_sanitize("undefined"))) 1995 static int smash_stack(void) 1996 { 1997 char buf[100]; 1998 volatile char *ptr = buf; 1999 size_t i; 2000 2001 for (i = 0; i < 200; i++) 2002 ptr[i] = 'P'; 2003 2004 return 1; 2005 } 2006 2007 static int run_protection(int min __attribute__((unused)), 2008 int max __attribute__((unused))) 2009 { 2010 pid_t pid; 2011 int llen = 0, status; 2012 struct rlimit rlimit = { 0, 0 }; 2013 2014 llen += printf("0 -fstackprotector "); 2015 2016 #if !defined(_NOLIBC_STACKPROTECTOR) 2017 llen += printf("not supported"); 2018 result(llen, SKIPPED); 2019 return 0; 2020 #endif 2021 2022 #if defined(_NOLIBC_STACKPROTECTOR) 2023 if (!__stack_chk_guard) { 2024 llen += printf("__stack_chk_guard not initialized"); 2025 result(llen, FAIL); 2026 return 1; 2027 } 2028 #endif 2029 2030 pid = -1; 2031 pid = fork(); 2032 2033 switch (pid) { 2034 case -1: 2035 llen += printf("fork()"); 2036 result(llen, FAIL); 2037 return 1; 2038 2039 case 0: 2040 close(STDOUT_FILENO); 2041 close(STDERR_FILENO); 2042 2043 prctl(PR_SET_DUMPABLE, 0, 0, 0, 0); 2044 setrlimit(RLIMIT_CORE, &rlimit); 2045 smash_stack(); 2046 return 1; 2047 2048 default: 2049 pid = waitpid(pid, &status, 0); 2050 2051 if (pid == -1 || !WIFSIGNALED(status) || WTERMSIG(status) != SIGABRT) { 2052 llen += printf("waitpid()"); 2053 result(llen, FAIL); 2054 return 1; 2055 } 2056 result(llen, OK); 2057 return 0; 2058 } 2059 } 2060 2061 /* prepare what needs to be prepared for pid 1 (stdio, /dev, /proc, etc) */ 2062 int prepare(void) 2063 { 2064 struct stat stat_buf; 2065 2066 /* It's possible that /dev doesn't even exist or was not mounted, so 2067 * we'll try to create it, mount it, or create minimal entries into it. 2068 * We want at least /dev/null and /dev/console. 2069 */ 2070 if (stat("/dev/.", &stat_buf) == 0 || mkdir("/dev", 0755) == 0) { 2071 if (stat("/dev/console", &stat_buf) != 0 || 2072 stat("/dev/null", &stat_buf) != 0 || 2073 stat("/dev/zero", &stat_buf) != 0 || 2074 stat("/dev/full", &stat_buf) != 0) { 2075 /* try devtmpfs first, otherwise fall back to manual creation */ 2076 if (mount("/dev", "/dev", "devtmpfs", 0, 0) != 0) { 2077 mknod("/dev/console", 0600 | S_IFCHR, makedev(5, 1)); 2078 mknod("/dev/null", 0666 | S_IFCHR, makedev(1, 3)); 2079 mknod("/dev/zero", 0666 | S_IFCHR, makedev(1, 5)); 2080 mknod("/dev/full", 0666 | S_IFCHR, makedev(1, 7)); 2081 } 2082 } 2083 } 2084 2085 /* If no /dev/console was found before calling init, stdio is closed so 2086 * we need to reopen it from /dev/console. If it failed above, it will 2087 * still fail here and we cannot emit a message anyway. 2088 */ 2089 if (close(dup(1)) == -1) { 2090 int fd = open("/dev/console", O_RDWR); 2091 2092 if (fd >= 0) { 2093 if (fd != 0) 2094 dup2(fd, 0); 2095 if (fd != 1) 2096 dup2(fd, 1); 2097 if (fd != 2) 2098 dup2(fd, 2); 2099 if (fd > 2) 2100 close(fd); 2101 puts("\nSuccessfully reopened /dev/console."); 2102 } 2103 } 2104 2105 /* try to mount /proc if not mounted. Silently fail otherwise */ 2106 if (stat("/proc/.", &stat_buf) == 0 || mkdir("/proc", 0755) == 0) { 2107 if (stat("/proc/self", &stat_buf) != 0) { 2108 /* If not mountable, remove /proc completely to avoid misuse */ 2109 if (mount("none", "/proc", "proc", 0, 0) != 0) 2110 rmdir("/proc"); 2111 } 2112 } 2113 2114 /* some tests rely on a writable /tmp */ 2115 mkdir("/tmp", 0755); 2116 2117 return 0; 2118 } 2119 2120 /* This is the definition of known test names, with their functions */ 2121 static const struct test test_names[] = { 2122 /* add new tests here */ 2123 { .name = "startup", .func = run_startup }, 2124 { .name = "syscall", .func = run_syscall }, 2125 { .name = "stdlib", .func = run_stdlib }, 2126 { .name = "printf", .func = run_printf }, 2127 { .name = "protection", .func = run_protection }, 2128 { 0 } 2129 }; 2130 2131 static int is_setting_valid(char *test) 2132 { 2133 int idx, len, test_len, valid = 0; 2134 char delimiter; 2135 2136 if (!test) 2137 return valid; 2138 2139 test_len = strlen(test); 2140 2141 for (idx = 0; test_names[idx].name; idx++) { 2142 len = strlen(test_names[idx].name); 2143 if (test_len < len) 2144 continue; 2145 2146 if (strncmp(test, test_names[idx].name, len) != 0) 2147 continue; 2148 2149 delimiter = test[len]; 2150 if (delimiter != ':' && delimiter != ',' && delimiter != '\0') 2151 continue; 2152 2153 valid = 1; 2154 break; 2155 } 2156 2157 return valid; 2158 } 2159 2160 int main(int argc, char **argv, char **envp) 2161 { 2162 int min = 0; 2163 int max = INT_MAX; 2164 int ret = 0; 2165 int err; 2166 int idx; 2167 char *test; 2168 2169 argv0 = argv[0]; 2170 test_argc = argc; 2171 test_argv = argv; 2172 test_envp = envp; 2173 2174 /* when called as init, it's possible that no console was opened, for 2175 * example if no /dev file system was provided. We'll check that fd#1 2176 * was opened, and if not we'll attempt to create and open /dev/console 2177 * and /dev/null that we'll use for later tests. 2178 */ 2179 if (getpid() == 1) 2180 prepare(); 2181 2182 /* the definition of a series of tests comes from either argv[1] or the 2183 * "NOLIBC_TEST" environment variable. It's made of a comma-delimited 2184 * series of test names and optional ranges: 2185 * syscall:5-15[:.*],stdlib:8-10 2186 */ 2187 test = argv[1]; 2188 if (!is_setting_valid(test)) 2189 test = getenv("NOLIBC_TEST"); 2190 2191 if (is_setting_valid(test)) { 2192 char *comma, *colon, *dash, *value; 2193 2194 do { 2195 comma = strchr(test, ','); 2196 if (comma) 2197 *(comma++) = '\0'; 2198 2199 colon = strchr(test, ':'); 2200 if (colon) 2201 *(colon++) = '\0'; 2202 2203 for (idx = 0; test_names[idx].name; idx++) { 2204 if (strcmp(test, test_names[idx].name) == 0) 2205 break; 2206 } 2207 2208 if (test_names[idx].name) { 2209 /* The test was named, it will be called at least 2210 * once. We may have an optional range at <colon> 2211 * here, which defaults to the full range. 2212 */ 2213 do { 2214 min = 0; max = INT_MAX; 2215 value = colon; 2216 if (value && *value) { 2217 colon = strchr(value, ':'); 2218 if (colon) 2219 *(colon++) = '\0'; 2220 2221 dash = strchr(value, '-'); 2222 if (dash) 2223 *(dash++) = '\0'; 2224 2225 /* support :val: :min-max: :min-: :-max: */ 2226 if (*value) 2227 min = atoi(value); 2228 if (!dash) 2229 max = min; 2230 else if (*dash) 2231 max = atoi(dash); 2232 2233 value = colon; 2234 } 2235 2236 /* now's time to call the test */ 2237 printf("Running test '%s'\n", test_names[idx].name); 2238 err = test_names[idx].func(min, max); 2239 ret += err; 2240 printf("Errors during this test: %d\n\n", err); 2241 } while (colon && *colon); 2242 } else 2243 printf("Ignoring unknown test name '%s'\n", test); 2244 2245 test = comma; 2246 } while (test && *test); 2247 } else { 2248 /* no test mentioned, run everything */ 2249 for (idx = 0; test_names[idx].name; idx++) { 2250 printf("Running test '%s'\n", test_names[idx].name); 2251 err = test_names[idx].func(min, max); 2252 ret += err; 2253 printf("Errors during this test: %d\n\n", err); 2254 } 2255 } 2256 2257 printf("Total number of errors: %d\n", ret); 2258 2259 if (getpid() == 1) { 2260 /* we're running as init, there's no other process on the 2261 * system, thus likely started from a VM for a quick check. 2262 * Exiting will provoke a kernel panic that may be reported 2263 * as an error by Qemu or the hypervisor, while stopping 2264 * cleanly will often be reported as a success. This allows 2265 * to use the output of this program for bisecting kernels. 2266 */ 2267 printf("Leaving init with final status: %d\n", !!ret); 2268 if (ret == 0) 2269 reboot(RB_POWER_OFF); 2270 #if defined(__x86_64__) 2271 /* QEMU started with "-device isa-debug-exit -no-reboot" will 2272 * exit with status code 2N+1 when N is written to 0x501. We 2273 * hard-code the syscall here as it's arch-dependent. 2274 */ 2275 else if (syscall(__NR_ioperm, 0x501, 1, 1) == 0) 2276 __asm__ volatile ("outb %%al, %%dx" :: "d"(0x501), "a"(0)); 2277 /* if it does nothing, fall back to the regular panic */ 2278 #endif 2279 } 2280 2281 printf("Exiting with status %d\n", !!ret); 2282 return !!ret; 2283 } 2284