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 #include <byteswap.h> 47 #include <endian.h> 48 49 #pragma GCC diagnostic ignored "-Wmissing-prototypes" 50 51 #include "nolibc-test-linkage.h" 52 53 /* for the type of int_fast16_t and int_fast32_t, musl differs from glibc and nolibc */ 54 #define SINT_MAX_OF_TYPE(type) (((type)1 << (sizeof(type) * 8 - 2)) - (type)1 + ((type)1 << (sizeof(type) * 8 - 2))) 55 #define SINT_MIN_OF_TYPE(type) (-SINT_MAX_OF_TYPE(type) - 1) 56 57 /* will be used to test initialization of environ */ 58 static char **test_envp; 59 60 /* will be used to test initialization of argv */ 61 static char **test_argv; 62 63 /* will be used to test initialization of argc */ 64 static int test_argc; 65 66 /* will be used by some test cases as readable file, please don't write it */ 67 static const char *argv0; 68 69 /* will be used by constructor tests */ 70 static int constructor_test_value; 71 72 static const int is_le = __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__; 73 74 static const int is_nolibc = 75 #ifdef NOLIBC 76 1 77 #else 78 0 79 #endif 80 ; 81 82 static const int is_glibc = 83 #ifdef __GLIBC__ 84 1 85 #else 86 0 87 #endif 88 ; 89 90 #if !defined(NOLIBC) 91 /* Some disabled tests may not compile. */ 92 93 /* strlcat() and strlcpy() may not be in the system headers. */ 94 #undef strlcat 95 #undef strlcpy 96 #define strlcat(d, s, l) 0 97 #define strlcpy(d, s, l) 0 98 99 /* readdir_r() is likely to be marked deprecated */ 100 #undef readdir_r 101 #define readdir_r(dir, dirent, result) ((errno = EINVAL), -1) 102 103 #define _syscall(...) 0 104 #endif 105 106 /* definition of a series of tests */ 107 struct test { 108 const char *name; /* test name */ 109 int (*func)(int min, int max); /* handler */ 110 }; 111 112 #ifndef _NOLIBC_STDLIB_H 113 char *itoa(int i) 114 { 115 static char buf[12]; 116 int ret; 117 118 ret = snprintf(buf, sizeof(buf), "%d", i); 119 return (ret >= 0 && ret < sizeof(buf)) ? buf : "#err"; 120 } 121 #endif 122 123 #define CASE_ERR(err) \ 124 case err: return #err 125 126 /* returns the error name (e.g. "ENOENT") for common errors, "SUCCESS" for 0, 127 * or the decimal value for less common ones. 128 */ 129 static const char *errorname(int err) 130 { 131 switch (err) { 132 case 0: return "SUCCESS"; 133 CASE_ERR(EPERM); 134 CASE_ERR(ENOENT); 135 CASE_ERR(ESRCH); 136 CASE_ERR(EINTR); 137 CASE_ERR(EIO); 138 CASE_ERR(ENXIO); 139 CASE_ERR(E2BIG); 140 CASE_ERR(ENOEXEC); 141 CASE_ERR(EBADF); 142 CASE_ERR(ECHILD); 143 CASE_ERR(EAGAIN); 144 CASE_ERR(ENOMEM); 145 CASE_ERR(EACCES); 146 CASE_ERR(EFAULT); 147 CASE_ERR(ENOTBLK); 148 CASE_ERR(EBUSY); 149 CASE_ERR(EEXIST); 150 CASE_ERR(EXDEV); 151 CASE_ERR(ENODEV); 152 CASE_ERR(ENOTDIR); 153 CASE_ERR(EISDIR); 154 CASE_ERR(EINVAL); 155 CASE_ERR(ENFILE); 156 CASE_ERR(EMFILE); 157 CASE_ERR(ENOTTY); 158 CASE_ERR(ETXTBSY); 159 CASE_ERR(EFBIG); 160 CASE_ERR(ENOSPC); 161 CASE_ERR(ESPIPE); 162 CASE_ERR(EROFS); 163 CASE_ERR(EMLINK); 164 CASE_ERR(EPIPE); 165 CASE_ERR(EDOM); 166 CASE_ERR(ERANGE); 167 CASE_ERR(ENOSYS); 168 CASE_ERR(EOVERFLOW); 169 default: 170 return itoa(err); 171 } 172 } 173 174 enum RESULT { 175 OK, 176 FAIL, 177 SKIPPED, 178 }; 179 180 static void result(int llen, enum RESULT r) 181 { 182 const char *msg; 183 184 if (r == OK) 185 msg = " [OK]"; 186 else if (r == SKIPPED) 187 msg = "[SKIPPED]"; 188 else 189 msg = " [FAIL]"; 190 191 llen = 64 - llen; 192 if (llen < 0) 193 llen = 0; 194 printf("%*s%s\n", llen, "", msg); 195 } 196 197 /* The tests below are intended to be used by the macroes, which evaluate 198 * expression <expr>, print the status to stdout, and update the "ret" 199 * variable to count failures. The functions themselves return the number 200 * of failures, thus either 0 or 1. 201 */ 202 203 #define EXPECT_ZR(cond, expr) \ 204 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_zr(expr, llen); } while (0) 205 206 static __attribute__((unused)) 207 int expect_zr(int expr, int llen) 208 { 209 int ret = !(expr == 0); 210 211 llen += printf(" = %d ", expr); 212 result(llen, ret ? FAIL : OK); 213 return ret; 214 } 215 216 217 #define EXPECT_NZ(cond, expr) \ 218 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_nz(expr, llen); } while (0) 219 220 static __attribute__((unused)) 221 int expect_nz(int expr, int llen) 222 { 223 int ret = !(expr != 0); 224 225 llen += printf(" = %d ", expr); 226 result(llen, ret ? FAIL : OK); 227 return ret; 228 } 229 230 231 #define EXPECT_EQ(cond, expr, val) \ 232 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_eq(expr, llen, val); } while (0) 233 234 static __attribute__((unused)) 235 int expect_eq(uint64_t expr, int llen, uint64_t val) 236 { 237 int ret = !(expr == val); 238 239 llen += printf(" = %lld ", (long long)expr); 240 result(llen, ret ? FAIL : OK); 241 return ret; 242 } 243 244 245 #define EXPECT_NE(cond, expr, val) \ 246 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ne(expr, llen, val); } while (0) 247 248 static __attribute__((unused)) 249 int expect_ne(int expr, int llen, int val) 250 { 251 int ret = !(expr != val); 252 253 llen += printf(" = %d ", expr); 254 result(llen, ret ? FAIL : OK); 255 return ret; 256 } 257 258 259 #define EXPECT_GE(cond, expr, val) \ 260 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ge(expr, llen, val); } while (0) 261 262 static __attribute__((unused)) 263 int expect_ge(int expr, int llen, int val) 264 { 265 int ret = !(expr >= val); 266 267 llen += printf(" = %d ", expr); 268 result(llen, ret ? FAIL : OK); 269 return ret; 270 } 271 272 273 #define EXPECT_GT(cond, expr, val) \ 274 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_gt(expr, llen, val); } while (0) 275 276 static __attribute__((unused)) 277 int expect_gt(int expr, int llen, int val) 278 { 279 int ret = !(expr > val); 280 281 llen += printf(" = %d ", expr); 282 result(llen, ret ? FAIL : OK); 283 return ret; 284 } 285 286 287 #define EXPECT_LE(cond, expr, val) \ 288 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_le(expr, llen, val); } while (0) 289 290 static __attribute__((unused)) 291 int expect_le(int expr, int llen, int val) 292 { 293 int ret = !(expr <= val); 294 295 llen += printf(" = %d ", expr); 296 result(llen, ret ? FAIL : OK); 297 return ret; 298 } 299 300 301 #define EXPECT_LT(cond, expr, val) \ 302 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_lt(expr, llen, val); } while (0) 303 304 static __attribute__((unused)) 305 int expect_lt(int expr, int llen, int val) 306 { 307 int ret = !(expr < val); 308 309 llen += printf(" = %d ", expr); 310 result(llen, ret ? FAIL : OK); 311 return ret; 312 } 313 314 315 #define EXPECT_SYSZR(cond, expr) \ 316 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syszr(expr, llen); } while (0) 317 318 static __attribute__((unused)) 319 int expect_syszr(int expr, int llen) 320 { 321 int ret = 0; 322 323 if (expr) { 324 ret = 1; 325 llen += printf(" = %d %s ", expr, errorname(errno)); 326 result(llen, FAIL); 327 } else { 328 llen += printf(" = %d ", expr); 329 result(llen, OK); 330 } 331 return ret; 332 } 333 334 335 #define EXPECT_SYSEQ(cond, expr, val) \ 336 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syseq(expr, llen, val); } while (0) 337 338 static __attribute__((unused)) 339 int expect_syseq(int expr, int llen, int val) 340 { 341 int ret = 0; 342 343 if (expr != val) { 344 ret = 1; 345 llen += printf(" = %d %s ", expr, errorname(errno)); 346 result(llen, FAIL); 347 } else { 348 llen += printf(" = %d ", expr); 349 result(llen, OK); 350 } 351 return ret; 352 } 353 354 355 #define EXPECT_SYSNE(cond, expr, val) \ 356 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_sysne(expr, llen, val); } while (0) 357 358 static __attribute__((unused)) 359 int expect_sysne(int expr, int llen, int val) 360 { 361 int ret = 0; 362 363 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 (expr != expret || (_errno != experr1 && _errno != experr2)) { 389 ret = 1; 390 if (experr2 == 0) 391 llen += printf(" != (%d %s) ", expret, errorname(experr1)); 392 else 393 llen += printf(" != (%d %s %s) ", expret, errorname(experr1), errorname(experr2)); 394 result(llen, FAIL); 395 } else { 396 result(llen, OK); 397 } 398 return ret; 399 } 400 401 402 #define EXPECT_PTRZR(cond, expr) \ 403 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrzr(expr, llen); } while (0) 404 405 static __attribute__((unused)) 406 int expect_ptrzr(const void *expr, int llen) 407 { 408 int ret = 0; 409 410 llen += printf(" = <%p> ", expr); 411 if (expr) { 412 ret = 1; 413 result(llen, FAIL); 414 } else { 415 result(llen, OK); 416 } 417 return ret; 418 } 419 420 421 #define EXPECT_PTRNZ(cond, expr) \ 422 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrnz(expr, llen); } while (0) 423 424 static __attribute__((unused)) 425 int expect_ptrnz(const void *expr, int llen) 426 { 427 int ret = 0; 428 429 llen += printf(" = <%p> ", expr); 430 if (!expr) { 431 ret = 1; 432 result(llen, FAIL); 433 } else { 434 result(llen, OK); 435 } 436 return ret; 437 } 438 439 #define EXPECT_PTREQ(cond, expr, cmp) \ 440 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptreq(expr, llen, cmp); } while (0) 441 442 static __attribute__((unused)) 443 int expect_ptreq(const void *expr, int llen, const void *cmp) 444 { 445 int ret = 0; 446 447 llen += printf(" = <%p> ", expr); 448 if (expr != cmp) { 449 ret = 1; 450 result(llen, FAIL); 451 } else { 452 result(llen, OK); 453 } 454 return ret; 455 } 456 457 #define EXPECT_PTRNE(cond, expr, cmp) \ 458 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrne(expr, llen, cmp); } while (0) 459 460 static __attribute__((unused)) 461 int expect_ptrne(const void *expr, int llen, const void *cmp) 462 { 463 int ret = 0; 464 465 llen += printf(" = <%p> ", expr); 466 if (expr == cmp) { 467 ret = 1; 468 result(llen, FAIL); 469 } else { 470 result(llen, OK); 471 } 472 return ret; 473 } 474 475 #define EXPECT_PTRGE(cond, expr, cmp) \ 476 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrge(expr, llen, cmp); } while (0) 477 478 static __attribute__((unused)) 479 int expect_ptrge(const void *expr, int llen, const void *cmp) 480 { 481 int ret = !(expr >= cmp); 482 483 llen += printf(" = <%p> ", expr); 484 result(llen, ret ? FAIL : OK); 485 return ret; 486 } 487 488 #define EXPECT_PTRGT(cond, expr, cmp) \ 489 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrgt(expr, llen, cmp); } while (0) 490 491 static __attribute__((unused)) 492 int expect_ptrgt(const void *expr, int llen, const void *cmp) 493 { 494 int ret = !(expr > cmp); 495 496 llen += printf(" = <%p> ", expr); 497 result(llen, ret ? FAIL : OK); 498 return ret; 499 } 500 501 502 #define EXPECT_PTRLE(cond, expr, cmp) \ 503 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrle(expr, llen, cmp); } while (0) 504 505 static __attribute__((unused)) 506 int expect_ptrle(const void *expr, int llen, const void *cmp) 507 { 508 int ret = !(expr <= cmp); 509 510 llen += printf(" = <%p> ", expr); 511 result(llen, ret ? FAIL : OK); 512 return ret; 513 } 514 515 516 #define EXPECT_PTRLT(cond, expr, cmp) \ 517 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrlt(expr, llen, cmp); } while (0) 518 519 static __attribute__((unused)) 520 int expect_ptrlt(const void *expr, int llen, const void *cmp) 521 { 522 int ret = !(expr < cmp); 523 524 llen += printf(" = <%p> ", expr); 525 result(llen, ret ? FAIL : OK); 526 return ret; 527 } 528 529 #define EXPECT_PTRER2(cond, expr, expret, experr1, experr2) \ 530 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrerr2(expr, expret, experr1, experr2, llen); } while (0) 531 532 #define EXPECT_PTRER(cond, expr, expret, experr) \ 533 EXPECT_PTRER2(cond, expr, expret, experr, 0) 534 535 static __attribute__((unused)) 536 int expect_ptrerr2(const void *expr, const void *expret, int experr1, int experr2, int llen) 537 { 538 int ret = 0; 539 int _errno = errno; 540 541 llen += printf(" = <%p> %s ", expr, errorname(_errno)); 542 if (expr != expret || (_errno != experr1 && _errno != experr2)) { 543 ret = 1; 544 if (experr2 == 0) 545 llen += printf(" != (<%p> %s) ", expret, errorname(experr1)); 546 else 547 llen += printf(" != (<%p> %s %s) ", expret, errorname(experr1), errorname(experr2)); 548 result(llen, FAIL); 549 } else { 550 result(llen, OK); 551 } 552 return ret; 553 } 554 555 #define EXPECT_STRZR(cond, expr) \ 556 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strzr(expr, llen); } while (0) 557 558 static __attribute__((unused)) 559 int expect_strzr(const char *expr, int llen) 560 { 561 int ret = 0; 562 563 llen += printf(" = <%s> ", expr ? expr : "(null)"); 564 if (expr) { 565 ret = 1; 566 result(llen, FAIL); 567 } else { 568 result(llen, OK); 569 } 570 return ret; 571 } 572 573 574 #define EXPECT_STRNZ(cond, expr) \ 575 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strnz(expr, llen); } while (0) 576 577 static __attribute__((unused)) 578 int expect_strnz(const char *expr, int llen) 579 { 580 int ret = 0; 581 582 llen += printf(" = <%s> ", expr ? expr : "(null)"); 583 if (!expr) { 584 ret = 1; 585 result(llen, FAIL); 586 } else { 587 result(llen, OK); 588 } 589 return ret; 590 } 591 592 593 #define EXPECT_STREQ(cond, expr, cmp) \ 594 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_streq(expr, llen, cmp); } while (0) 595 596 static __attribute__((unused)) 597 int expect_streq(const char *expr, int llen, const char *cmp) 598 { 599 int ret = 0; 600 601 llen += printf(" = <%s> ", expr); 602 if (strcmp(expr, cmp) != 0) { 603 ret = 1; 604 result(llen, FAIL); 605 } else { 606 result(llen, OK); 607 } 608 return ret; 609 } 610 611 612 #define EXPECT_STRNE(cond, expr, cmp) \ 613 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strne(expr, llen, cmp); } while (0) 614 615 static __attribute__((unused)) 616 int expect_strne(const char *expr, int llen, const char *cmp) 617 { 618 int ret = 0; 619 620 llen += printf(" = <%s> ", expr); 621 if (strcmp(expr, cmp) == 0) { 622 ret = 1; 623 result(llen, FAIL); 624 } else { 625 result(llen, OK); 626 } 627 return ret; 628 } 629 630 #define EXPECT_STRBUFEQ(cond, expr, buf, val, cmp) \ 631 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_str_buf_eq(expr, buf, val, llen, cmp); } while (0) 632 633 static __attribute__((unused)) 634 int expect_str_buf_eq(size_t expr, const char *buf, size_t val, int llen, const char *cmp) 635 { 636 llen += printf(" = %lu <%s> ", (unsigned long)expr, buf); 637 if (strcmp(buf, cmp) != 0) { 638 result(llen, FAIL); 639 return 1; 640 } 641 if (expr != val) { 642 result(llen, FAIL); 643 return 1; 644 } 645 646 result(llen, OK); 647 return 0; 648 } 649 650 #define EXPECT_STRTOX(cond, func, input, base, expected, chars, expected_errno) \ 651 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strtox(llen, func, input, base, expected, chars, expected_errno); } while (0) 652 653 static __attribute__((unused)) 654 int expect_strtox(int llen, void *func, const char *input, int base, intmax_t expected, int expected_chars, int expected_errno) 655 { 656 char *endptr; 657 int actual_errno, actual_chars; 658 intmax_t r; 659 660 errno = 0; 661 if (func == strtol) { 662 r = strtol(input, &endptr, base); 663 } else if (func == strtoul) { 664 r = strtoul(input, &endptr, base); 665 } else { 666 result(llen, FAIL); 667 return 1; 668 } 669 actual_errno = errno; 670 actual_chars = endptr - input; 671 672 llen += printf(" %lld = %lld", (long long)expected, (long long)r); 673 if (r != expected) { 674 result(llen, FAIL); 675 return 1; 676 } 677 if (expected_chars == -1) { 678 if (*endptr != '\0') { 679 result(llen, FAIL); 680 return 1; 681 } 682 } else if (expected_chars != actual_chars) { 683 result(llen, FAIL); 684 return 1; 685 } 686 if (actual_errno != expected_errno) { 687 result(llen, FAIL); 688 return 1; 689 } 690 691 result(llen, OK); 692 return 0; 693 } 694 695 /* declare tests based on line numbers. There must be exactly one test per line. */ 696 #define CASE_TEST(name) \ 697 case __LINE__: llen += printf("%d %s", test, #name); 698 699 __attribute__((constructor)) 700 static void constructor1(void) 701 { 702 constructor_test_value |= 1 << 0; 703 } 704 705 __attribute__((constructor)) 706 static void constructor2(int argc, char **argv, char **envp) 707 { 708 if (argc && argv && envp) 709 constructor_test_value |= 1 << 1; 710 } 711 712 int test_program_invocation_name(void) 713 { 714 char buf[100]; 715 char *dirsep; 716 ssize_t r; 717 int fd; 718 719 fd = open("/proc/self/cmdline", O_RDONLY); 720 if (fd == -1) 721 return 1; 722 723 r = read(fd, buf, sizeof(buf)); 724 close(fd); 725 if (r < 1 || r == sizeof(buf)) 726 return 1; 727 728 buf[r - 1] = '\0'; 729 730 if (strcmp(program_invocation_name, buf) != 0) 731 return 1; 732 733 dirsep = strrchr(buf, '/'); 734 if (!dirsep || dirsep[1] == '\0') 735 return 1; 736 737 if (strcmp(program_invocation_short_name, dirsep + 1) != 0) 738 return 1; 739 740 return 0; 741 } 742 743 int run_startup(int min, int max) 744 { 745 int test; 746 int ret = 0; 747 /* kernel at least passes HOME and TERM, shell passes more */ 748 int env_total = 2; 749 /* checking NULL for argv/argv0, environ and _auxv is not enough, let's compare with sbrk(0) or &end */ 750 extern char end; 751 char *brk = sbrk(0) != (void *)-1 ? sbrk(0) : &end; 752 /* differ from nolibc, both glibc and musl have no global _auxv */ 753 const unsigned long *test_auxv = (void *)-1; 754 #ifdef NOLIBC 755 test_auxv = _auxv; 756 #endif 757 bool proc = access("/proc", R_OK) == 0; 758 759 for (test = min; test >= 0 && test <= max; test++) { 760 int llen = 0; /* line length */ 761 762 /* avoid leaving empty lines below, this will insert holes into 763 * test numbers. 764 */ 765 switch (test + __LINE__ + 1) { 766 CASE_TEST(argc); EXPECT_GE(1, test_argc, 1); break; 767 CASE_TEST(argv_addr); EXPECT_PTRGT(1, test_argv, brk); break; 768 CASE_TEST(argv_environ); EXPECT_PTRLT(1, test_argv, environ); break; 769 CASE_TEST(argv_total); EXPECT_EQ(1, environ - test_argv - 1, test_argc ?: 1); break; 770 CASE_TEST(argv0_addr); EXPECT_PTRGT(1, argv0, brk); break; 771 CASE_TEST(argv0_str); EXPECT_STRNZ(1, argv0 > brk ? argv0 : NULL); break; 772 CASE_TEST(argv0_len); EXPECT_GE(1, argv0 > brk ? strlen(argv0) : 0, 1); break; 773 CASE_TEST(environ_addr); EXPECT_PTRGT(1, environ, brk); break; 774 CASE_TEST(environ_envp); EXPECT_PTREQ(1, environ, test_envp); break; 775 CASE_TEST(environ_auxv); EXPECT_PTRLT(test_auxv != (void *)-1, environ, test_auxv); break; 776 CASE_TEST(environ_total); EXPECT_GE(test_auxv != (void *)-1, (void *)test_auxv - (void *)environ - 1, env_total); break; 777 CASE_TEST(environ_HOME); EXPECT_PTRNZ(1, getenv("HOME")); break; 778 CASE_TEST(auxv_addr); EXPECT_PTRGT(test_auxv != (void *)-1, test_auxv, brk); break; 779 CASE_TEST(auxv_AT_UID); EXPECT_EQ(1, getauxval(AT_UID), getuid()); break; 780 CASE_TEST(constructor); EXPECT_EQ(is_nolibc, constructor_test_value, 0x3); break; 781 CASE_TEST(linkage_errno); EXPECT_PTREQ(1, linkage_test_errno_addr(), &errno); break; 782 CASE_TEST(linkage_constr); EXPECT_EQ(1, linkage_test_constructor_test_value, 0x3); break; 783 CASE_TEST(prog_name); EXPECT_ZR(proc, test_program_invocation_name()); break; 784 case __LINE__: 785 return ret; /* must be last */ 786 /* note: do not set any defaults so as to permit holes above */ 787 } 788 } 789 return ret; 790 } 791 792 793 /* used by some syscall tests below */ 794 int test_getdents64(const char *dir) 795 { 796 char buffer[4096]; 797 int fd, ret; 798 int err; 799 800 ret = fd = open(dir, O_RDONLY | O_DIRECTORY, 0); 801 if (ret < 0) 802 return ret; 803 804 ret = getdents64(fd, (void *)buffer, sizeof(buffer)); 805 err = errno; 806 close(fd); 807 808 errno = err; 809 return ret; 810 } 811 812 static int test_dirent(void) 813 { 814 int comm = 0, cmdline = 0; 815 struct dirent dirent, *result; 816 DIR *dir; 817 int ret; 818 819 dir = opendir("/proc/self"); 820 if (!dir) 821 return 1; 822 823 while (1) { 824 errno = 0; 825 ret = readdir_r(dir, &dirent, &result); 826 if (ret != 0) 827 return 1; 828 if (!result) 829 break; 830 831 if (strcmp(dirent.d_name, "comm") == 0) 832 comm++; 833 else if (strcmp(dirent.d_name, "cmdline") == 0) 834 cmdline++; 835 } 836 837 if (errno) 838 return 1; 839 840 ret = closedir(dir); 841 if (ret) 842 return 1; 843 844 if (comm != 1 || cmdline != 1) 845 return 1; 846 847 return 0; 848 } 849 850 int test_getrandom(void) 851 { 852 uint64_t rng = 0; 853 ssize_t ret; 854 855 ret = getrandom(&rng, sizeof(rng), GRND_NONBLOCK); 856 if (ret == -1 && errno == EAGAIN) 857 return 0; /* No entropy available yet */ 858 859 if (ret != sizeof(rng)) 860 return ret; 861 862 if (!rng) { 863 errno = EINVAL; 864 return -1; 865 } 866 867 return 0; 868 } 869 870 int test_getpagesize(void) 871 { 872 int x = getpagesize(); 873 int c; 874 875 if (x < 0) 876 return x; 877 878 #if defined(__x86_64__) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) 879 /* 880 * x86 family is always 4K page. 881 */ 882 c = (x == 4096); 883 #elif defined(__aarch64__) 884 /* 885 * Linux aarch64 supports three values of page size: 4K, 16K, and 64K 886 * which are selected at kernel compilation time. 887 */ 888 c = (x == 4096 || x == (16 * 1024) || x == (64 * 1024)); 889 #else 890 /* 891 * Assuming other architectures must have at least 4K page. 892 */ 893 c = (x >= 4096); 894 #endif 895 896 return !c; 897 } 898 899 int test_file_stream(void) 900 { 901 FILE *f; 902 int r; 903 904 f = fopen("/dev/null", "r"); 905 if (!f) 906 return -1; 907 908 errno = 0; 909 r = fwrite("foo", 1, 3, f); 910 if (r != 0 || ((is_nolibc || is_glibc) && errno != EBADF)) { 911 fclose(f); 912 return -1; 913 } 914 915 r = fclose(f); 916 if (r == EOF) 917 return -1; 918 919 return 0; 920 } 921 922 int test_file_stream_wsr(void) 923 { 924 const char dataout[] = "foo"; 925 const size_t datasz = sizeof(dataout); 926 char datain[datasz]; 927 int fd, r; 928 FILE *f; 929 930 fd = open("/tmp", O_TMPFILE | O_RDWR, 0644); 931 if (fd == -1) 932 return -1; 933 934 f = fdopen(fd, "w+"); 935 if (!f) 936 return -1; 937 938 errno = 0; 939 r = fwrite(dataout, 1, datasz, f); 940 if (r != datasz) 941 return -1; 942 943 /* Attempt to read from the file without rewinding, 944 * we should read 0 items. 945 */ 946 r = fread(datain, 1, datasz, f); 947 if (r) 948 return -1; 949 950 /* Rewind the file to the start */ 951 r = fseek(f, 0, SEEK_SET); 952 if (r) 953 return -1; 954 955 /* Attempt to read back more than was written to 956 * make sure we handle short reads properly. 957 * fread() should return the number of complete items. 958 */ 959 r = fread(datain, 1, datasz + 1, f); 960 if (r != datasz) 961 return -1; 962 963 /* Data we read should match the data we just wrote */ 964 if (memcmp(datain, dataout, datasz) != 0) 965 return -1; 966 967 r = fclose(f); 968 if (r) 969 return -1; 970 971 return 0; 972 } 973 974 enum fork_type { 975 FORK_STANDARD, 976 FORK_VFORK, 977 }; 978 979 int test_fork(enum fork_type type) 980 { 981 int status; 982 pid_t pid; 983 984 /* flush the printf buffer to avoid child flush it */ 985 fflush(stdout); 986 fflush(stderr); 987 988 switch (type) { 989 case FORK_STANDARD: 990 pid = fork(); 991 break; 992 case FORK_VFORK: 993 pid = vfork(); 994 break; 995 default: 996 return 1; 997 } 998 999 switch (pid) { 1000 case -1: 1001 return 1; 1002 1003 case 0: 1004 _exit(123); 1005 1006 default: 1007 pid = waitpid(pid, &status, 0); 1008 1009 return pid == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 123; 1010 } 1011 } 1012 1013 int test_stat_timestamps(void) 1014 { 1015 struct stat st; 1016 1017 if (sizeof(st.st_atim.tv_sec) != sizeof(st.st_atime)) 1018 return 1; 1019 1020 if (stat("/proc/self/", &st) && stat(argv0, &st) && stat("/", &st)) 1021 return 1; 1022 1023 if (st.st_atim.tv_sec != st.st_atime || st.st_atim.tv_nsec > 1000000000) 1024 return 1; 1025 1026 if (st.st_mtim.tv_sec != st.st_mtime || st.st_mtim.tv_nsec > 1000000000) 1027 return 1; 1028 1029 if (st.st_ctim.tv_sec != st.st_ctime || st.st_ctim.tv_nsec > 1000000000) 1030 return 1; 1031 1032 return 0; 1033 } 1034 1035 int test_timer(void) 1036 { 1037 struct itimerspec timerspec; 1038 struct sigevent evp; 1039 timer_t timer; 1040 int ret; 1041 1042 evp.sigev_notify = SIGEV_NONE; 1043 1044 ret = timer_create(CLOCK_MONOTONIC, &evp, &timer); 1045 if (ret) 1046 return ret; 1047 1048 timerspec = (struct itimerspec) { 1049 .it_value.tv_sec = 1000000, 1050 }; 1051 ret = timer_settime(timer, 0, &timerspec, NULL); 1052 if (ret) 1053 goto err; 1054 1055 timerspec = (struct itimerspec) { 1056 .it_value.tv_sec = -1, 1057 .it_value.tv_nsec = -1, 1058 .it_interval.tv_sec = -1, 1059 .it_interval.tv_nsec = -1, 1060 }; 1061 ret = timer_gettime(timer, &timerspec); 1062 if (ret) 1063 goto err; 1064 1065 errno = EINVAL; 1066 ret = -1; 1067 1068 if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec) 1069 goto err; 1070 1071 if (timerspec.it_value.tv_sec > 1000000) 1072 goto err; 1073 1074 ret = timer_delete(timer); 1075 if (ret) 1076 return ret; 1077 1078 return 0; 1079 1080 err: 1081 timer_delete(timer); 1082 return ret; 1083 } 1084 1085 int test_timerfd(void) 1086 { 1087 struct itimerspec timerspec; 1088 int timer, ret; 1089 1090 timer = timerfd_create(CLOCK_MONOTONIC, 0); 1091 if (timer == -1) 1092 return -1; 1093 1094 timerspec = (struct itimerspec) { 1095 .it_value.tv_sec = 1000000, 1096 }; 1097 ret = timerfd_settime(timer, 0, &timerspec, NULL); 1098 if (ret) 1099 goto err; 1100 1101 timerspec = (struct itimerspec) { 1102 .it_value.tv_sec = -1, 1103 .it_value.tv_nsec = -1, 1104 .it_interval.tv_sec = -1, 1105 .it_interval.tv_nsec = -1, 1106 }; 1107 ret = timerfd_gettime(timer, &timerspec); 1108 if (ret) 1109 goto err; 1110 1111 errno = EINVAL; 1112 ret = -1; 1113 1114 if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec) 1115 goto err; 1116 1117 if (timerspec.it_value.tv_sec > 1000000) 1118 goto err; 1119 1120 ret = close(timer); 1121 if (ret) 1122 return ret; 1123 1124 return 0; 1125 1126 err: 1127 close(timer); 1128 return ret; 1129 } 1130 1131 int test_uname(void) 1132 { 1133 struct utsname buf; 1134 char osrelease[sizeof(buf.release)]; 1135 ssize_t r; 1136 int fd; 1137 1138 memset(&buf.domainname, 'P', sizeof(buf.domainname)); 1139 1140 if (uname(&buf)) 1141 return 1; 1142 1143 if (strncmp("Linux", buf.sysname, sizeof(buf.sysname))) 1144 return 1; 1145 1146 fd = open("/proc/sys/kernel/osrelease", O_RDONLY); 1147 if (fd == -1) 1148 return 1; 1149 1150 r = read(fd, osrelease, sizeof(osrelease)); 1151 if (r == -1) 1152 return 1; 1153 1154 close(fd); 1155 1156 if (osrelease[r - 1] == '\n') 1157 r--; 1158 1159 /* Validate one of the later fields to ensure field sizes are correct */ 1160 if (strncmp(osrelease, buf.release, r)) 1161 return 1; 1162 1163 /* Ensure the field domainname is set, it is missing from struct old_utsname */ 1164 if (strnlen(buf.domainname, sizeof(buf.domainname)) == sizeof(buf.domainname)) 1165 return 1; 1166 1167 return 0; 1168 } 1169 1170 int test_mmap_munmap(void) 1171 { 1172 int ret, fd, i, page_size; 1173 void *mem; 1174 size_t file_size, length, mem_length; 1175 off_t offset, pa_offset; 1176 struct stat stat_buf; 1177 const char * const files[] = { 1178 "/dev/zero", 1179 "/proc/1/exe", "/proc/self/exe", 1180 argv0, 1181 NULL 1182 }; 1183 1184 page_size = getpagesize(); 1185 if (page_size < 0) 1186 return 1; 1187 1188 /* find a right file to mmap, existed and accessible */ 1189 for (i = 0; files[i] != NULL; i++) { 1190 ret = fd = open(files[i], O_RDONLY); 1191 if (ret == -1) 1192 continue; 1193 else 1194 break; 1195 } 1196 if (ret == -1) 1197 return 1; 1198 1199 ret = stat(files[i], &stat_buf); 1200 if (ret == -1) 1201 goto end; 1202 1203 /* file size of the special /dev/zero is 0, let's assign one manually */ 1204 if (i == 0) 1205 file_size = 3*page_size; 1206 else 1207 file_size = stat_buf.st_size; 1208 1209 offset = file_size - 1; 1210 if (offset < 0) 1211 offset = 0; 1212 length = file_size - offset; 1213 pa_offset = offset & ~(page_size - 1); 1214 mem_length = length + offset - pa_offset; 1215 1216 mem = mmap(NULL, mem_length, PROT_READ, MAP_SHARED, fd, pa_offset); 1217 if (mem == MAP_FAILED) { 1218 ret = 1; 1219 goto end; 1220 } 1221 1222 mem = mremap(mem, mem_length, mem_length * 2, MREMAP_MAYMOVE, 0); 1223 if (mem == MAP_FAILED) { 1224 munmap(mem, mem_length); 1225 ret = 1; 1226 goto end; 1227 } 1228 1229 ret = munmap(mem, mem_length * 2); 1230 1231 end: 1232 close(fd); 1233 return !!ret; 1234 } 1235 1236 int test_pipe(void) 1237 { 1238 const char *const msg = "hello, nolibc"; 1239 int pipefd[2]; 1240 char buf[32]; 1241 size_t len; 1242 1243 if (pipe(pipefd) == -1) 1244 return 1; 1245 1246 write(pipefd[1], msg, strlen(msg)); 1247 close(pipefd[1]); 1248 len = read(pipefd[0], buf, sizeof(buf)); 1249 close(pipefd[0]); 1250 1251 if (len != strlen(msg)) 1252 return 1; 1253 1254 return !!memcmp(buf, msg, len); 1255 } 1256 1257 int test_rlimit(void) 1258 { 1259 struct rlimit rlim = { 1260 .rlim_cur = 1 << 20, 1261 .rlim_max = 1 << 21, 1262 }; 1263 int ret; 1264 1265 ret = setrlimit(RLIMIT_CORE, &rlim); 1266 if (ret) 1267 return -1; 1268 1269 rlim.rlim_cur = 0; 1270 rlim.rlim_max = 0; 1271 1272 ret = getrlimit(RLIMIT_CORE, &rlim); 1273 if (ret) 1274 return -1; 1275 1276 if (rlim.rlim_cur != 1 << 20) 1277 return -1; 1278 if (rlim.rlim_max != 1 << 21) 1279 return -1; 1280 1281 return 0; 1282 } 1283 1284 int test_openat(void) 1285 { 1286 int dev, null; 1287 1288 dev = openat(AT_FDCWD, "/dev", O_DIRECTORY); 1289 if (dev < 0) 1290 return -1; 1291 1292 null = openat(dev, "null", O_RDONLY); 1293 close(dev); 1294 if (null < 0) 1295 return -1; 1296 1297 close(null); 1298 return 0; 1299 } 1300 1301 int test_namespace(void) 1302 { 1303 int original_ns, new_ns, ret; 1304 ino_t original_ns_ino; 1305 struct stat stat_buf; 1306 1307 original_ns = open("/proc/self/ns/uts", O_RDONLY); 1308 if (original_ns == -1) 1309 return -1; 1310 1311 ret = fstat(original_ns, &stat_buf); 1312 if (ret) 1313 goto out; 1314 1315 original_ns_ino = stat_buf.st_ino; 1316 1317 ret = unshare(CLONE_NEWUTS); 1318 if (ret) 1319 goto out; 1320 1321 new_ns = open("/proc/self/ns/uts", O_RDONLY); 1322 if (new_ns == -1) { 1323 ret = new_ns; 1324 goto out; 1325 } 1326 1327 ret = fstat(new_ns, &stat_buf); 1328 close(new_ns); 1329 if (ret) 1330 goto out; 1331 1332 if (stat_buf.st_ino == original_ns_ino) { 1333 errno = EINVAL; 1334 ret = -1; 1335 goto out; 1336 } 1337 1338 ret = setns(original_ns, CLONE_NEWUTS); 1339 if (ret) 1340 goto out; 1341 1342 new_ns = open("/proc/self/ns/uts", O_RDONLY); 1343 if (new_ns == -1) { 1344 ret = new_ns; 1345 goto out; 1346 } 1347 1348 ret = fstat(new_ns, &stat_buf); 1349 if (ret) 1350 goto out; 1351 1352 close(new_ns); 1353 1354 if (stat_buf.st_ino != original_ns_ino) { 1355 errno = EINVAL; 1356 ret = -1; 1357 goto out; 1358 } 1359 1360 ret = 0; 1361 1362 out: 1363 close(original_ns); 1364 return ret; 1365 } 1366 1367 /* Run syscall tests between IDs <min> and <max>. 1368 * Return 0 on success, non-zero on failure. 1369 */ 1370 int run_syscall(int min, int max) 1371 { 1372 struct timeval tv; 1373 struct timezone tz; 1374 struct timespec ts; 1375 struct stat stat_buf; 1376 int euid0; 1377 int proc; 1378 int test; 1379 int tmp; 1380 struct iovec iov_one = { 1381 .iov_base = &tmp, 1382 .iov_len = 1, 1383 }; 1384 int ret = 0; 1385 void *p1, *p2; 1386 int has_gettid = 1; 1387 int has_brk; 1388 1389 /* <proc> indicates whether or not /proc is mounted */ 1390 proc = stat("/proc", &stat_buf) == 0; 1391 1392 /* this will be used to skip certain tests that can't be run unprivileged */ 1393 euid0 = geteuid() == 0; 1394 1395 /* from 2.30, glibc provides gettid() */ 1396 #if defined(__GLIBC_MINOR__) && defined(__GLIBC__) 1397 has_gettid = __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 30); 1398 #endif 1399 1400 /* on musl setting brk()/sbrk() always fails */ 1401 has_brk = brk(0) == 0; 1402 1403 for (test = min; test >= 0 && test <= max; test++) { 1404 int llen = 0; /* line length */ 1405 1406 /* avoid leaving empty lines below, this will insert holes into 1407 * test numbers. 1408 */ 1409 switch (test + __LINE__ + 1) { 1410 CASE_TEST(access); EXPECT_SYSZR(proc, access("/proc/self", R_OK)); break; 1411 CASE_TEST(access_bad); EXPECT_SYSER(proc, access("/proc/self", W_OK), -1, EPERM); break; 1412 CASE_TEST(clock_getres); EXPECT_SYSZR(1, clock_getres(CLOCK_MONOTONIC, &ts)); break; 1413 CASE_TEST(clock_gettime); EXPECT_SYSZR(1, clock_gettime(CLOCK_MONOTONIC, &ts)); break; 1414 CASE_TEST(clock_settime); EXPECT_SYSER(1, clock_settime(CLOCK_MONOTONIC, &ts), -1, EINVAL); break; 1415 CASE_TEST(getpid); EXPECT_SYSNE(1, getpid(), -1); break; 1416 CASE_TEST(getppid); EXPECT_SYSNE(1, getppid(), -1); break; 1417 CASE_TEST(gettid); EXPECT_SYSNE(has_gettid, gettid(), -1); break; 1418 CASE_TEST(getpgid_self); EXPECT_SYSNE(1, getpgid(0), -1); break; 1419 CASE_TEST(getpgid_bad); EXPECT_SYSER(1, getpgid(-1), -1, ESRCH); break; 1420 CASE_TEST(kill_0); EXPECT_SYSZR(1, kill(getpid(), 0)); break; 1421 CASE_TEST(kill_CONT); EXPECT_SYSZR(1, kill(getpid(), 0)); break; 1422 CASE_TEST(kill_BADPID); EXPECT_SYSER(1, kill(INT_MAX, 0), -1, ESRCH); break; 1423 CASE_TEST(sbrk_0); EXPECT_PTRNE(has_brk, sbrk(0), (void *)-1); break; 1424 CASE_TEST(sbrk); if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(has_brk, (p2 == (void *)-1) || p2 == p1); break; 1425 CASE_TEST(brk); EXPECT_SYSZR(has_brk, brk(sbrk(0))); break; 1426 CASE_TEST(chdir_root); EXPECT_SYSZR(1, chdir("/")); chdir(getenv("PWD")); break; 1427 CASE_TEST(chdir_dot); EXPECT_SYSZR(1, chdir(".")); break; 1428 CASE_TEST(chdir_blah); EXPECT_SYSER(1, chdir("/blah"), -1, ENOENT); break; 1429 CASE_TEST(chmod_argv0); EXPECT_SYSZR(1, chmod(argv0, 0555)); break; 1430 CASE_TEST(chmod_self); EXPECT_SYSER(proc, chmod("/proc/self", 0555), -1, EPERM); break; 1431 CASE_TEST(chown_self); EXPECT_SYSER(proc, chown("/proc/self", 0, 0), -1, EPERM); break; 1432 CASE_TEST(chroot_root); EXPECT_SYSZR(euid0, chroot("/")); break; 1433 CASE_TEST(chroot_blah); EXPECT_SYSER(1, chroot("/proc/self/blah"), -1, ENOENT); break; 1434 CASE_TEST(chroot_exe); EXPECT_SYSER(1, chroot(argv0), -1, ENOTDIR); break; 1435 CASE_TEST(clock_nanosleep); ts.tv_nsec = -1; EXPECT_EQ(1, EINVAL, clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL)); break; 1436 CASE_TEST(close_m1); EXPECT_SYSER(1, close(-1), -1, EBADF); break; 1437 CASE_TEST(close_dup); EXPECT_SYSZR(1, close(dup(0))); break; 1438 CASE_TEST(dup_0); tmp = dup(0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; 1439 CASE_TEST(dup_m1); tmp = dup(-1); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; 1440 CASE_TEST(dup2_0); tmp = dup2(0, 100); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; 1441 CASE_TEST(dup2_m1); tmp = dup2(-1, 100); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; 1442 CASE_TEST(dup3_0); tmp = dup3(0, 100, 0); EXPECT_SYSNE(1, tmp, -1); close(tmp); break; 1443 CASE_TEST(dup3_m1); tmp = dup3(-1, 100, 0); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break; 1444 CASE_TEST(execve_root); EXPECT_SYSER(1, execve("/", (char*[]){ [0] = "/", [1] = NULL }, NULL), -1, EACCES); break; 1445 CASE_TEST(fchdir_stdin); EXPECT_SYSER(1, fchdir(STDIN_FILENO), -1, ENOTDIR); break; 1446 CASE_TEST(fchdir_badfd); EXPECT_SYSER(1, fchdir(-1), -1, EBADF); break; 1447 CASE_TEST(file_stream); EXPECT_SYSZR(1, test_file_stream()); break; 1448 CASE_TEST(file_stream_wsr); EXPECT_SYSZR(1, test_file_stream_wsr()); break; 1449 CASE_TEST(fork); EXPECT_SYSZR(1, test_fork(FORK_STANDARD)); break; 1450 CASE_TEST(getdents64_root); EXPECT_SYSNE(1, test_getdents64("/"), -1); break; 1451 CASE_TEST(getdents64_null); EXPECT_SYSER(1, test_getdents64("/dev/null"), -1, ENOTDIR); break; 1452 CASE_TEST(directories); EXPECT_SYSZR(is_nolibc && proc, test_dirent()); break; 1453 CASE_TEST(getrandom); EXPECT_SYSZR(1, test_getrandom()); break; 1454 CASE_TEST(gettimeofday_tv); EXPECT_SYSZR(1, gettimeofday(&tv, NULL)); break; 1455 CASE_TEST(gettimeofday_tv_tz);EXPECT_SYSZR(1, gettimeofday(&tv, &tz)); break; 1456 CASE_TEST(getpagesize); EXPECT_SYSZR(1, test_getpagesize()); break; 1457 CASE_TEST(ioctl_tiocinq); EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break; 1458 CASE_TEST(link_root1); EXPECT_SYSER(1, link("/", "/"), -1, EEXIST); break; 1459 CASE_TEST(link_blah); EXPECT_SYSER(1, link("/proc/self/blah", "/blah"), -1, ENOENT); break; 1460 CASE_TEST(link_dir); EXPECT_SYSER(euid0, link("/", "/blah"), -1, EPERM); break; 1461 CASE_TEST(link_cross); EXPECT_SYSER(proc, link("/proc/self/cmdline", "/blah"), -1, EXDEV); break; 1462 CASE_TEST(lseek_m1); EXPECT_SYSER(1, lseek(-1, 0, SEEK_SET), -1, EBADF); break; 1463 CASE_TEST(lseek_0); EXPECT_SYSER(1, lseek(0, 0, SEEK_SET), -1, ESPIPE); break; 1464 CASE_TEST(mkdir_root); EXPECT_SYSER(1, mkdir("/", 0755), -1, EEXIST); break; 1465 CASE_TEST(mmap_bad); EXPECT_PTRER(1, mmap(NULL, 0, PROT_READ, MAP_PRIVATE, 0, 0), MAP_FAILED, EINVAL); break; 1466 CASE_TEST(munmap_bad); EXPECT_SYSER(1, munmap(NULL, 0), -1, EINVAL); break; 1467 CASE_TEST(mmap_munmap_good); EXPECT_SYSZR(1, test_mmap_munmap()); break; 1468 CASE_TEST(nanosleep); ts.tv_nsec = -1; EXPECT_SYSER(1, nanosleep(&ts, NULL), -1, EINVAL); break; 1469 CASE_TEST(open_tty); EXPECT_SYSNE(1, tmp = open("/dev/null", O_RDONLY), -1); if (tmp != -1) close(tmp); break; 1470 CASE_TEST(open_blah); EXPECT_SYSER(1, tmp = open("/proc/self/blah", O_RDONLY), -1, ENOENT); if (tmp != -1) close(tmp); break; 1471 CASE_TEST(openat_dir); EXPECT_SYSZR(1, test_openat()); break; 1472 CASE_TEST(pipe); EXPECT_SYSZR(1, test_pipe()); break; 1473 CASE_TEST(poll_null); EXPECT_SYSZR(1, poll(NULL, 0, 0)); break; 1474 CASE_TEST(poll_stdout); EXPECT_SYSNE(1, ({ struct pollfd fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break; 1475 CASE_TEST(poll_fault); EXPECT_SYSER(1, poll(NULL, 1, 0), -1, EFAULT); break; 1476 CASE_TEST(prctl); EXPECT_SYSER(1, prctl(PR_SET_NAME, (unsigned long)NULL, 0, 0, 0), -1, EFAULT); break; 1477 CASE_TEST(read_badf); EXPECT_SYSER(1, read(-1, &tmp, 1), -1, EBADF); break; 1478 CASE_TEST(rlimit); EXPECT_SYSZR(1, test_rlimit()); break; 1479 CASE_TEST(rmdir_blah); EXPECT_SYSER(1, rmdir("/blah"), -1, ENOENT); break; 1480 CASE_TEST(sched_yield); EXPECT_SYSZR(1, sched_yield()); break; 1481 CASE_TEST(select_null); EXPECT_SYSZR(1, ({ struct timeval tv = { 0 }; select(0, NULL, NULL, NULL, &tv); })); break; 1482 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; 1483 CASE_TEST(select_fault); EXPECT_SYSER(1, select(1, (void *)1, NULL, NULL, 0), -1, EFAULT); break; 1484 CASE_TEST(stat_blah); EXPECT_SYSER(1, stat("/proc/self/blah", &stat_buf), -1, ENOENT); break; 1485 CASE_TEST(stat_fault); EXPECT_SYSER(1, stat(NULL, &stat_buf), -1, EFAULT); break; 1486 CASE_TEST(stat_rdev); EXPECT_SYSZR(1, ({ int ret = stat("/dev/null", &stat_buf); ret ?: stat_buf.st_rdev != makedev(1, 3); })); break; 1487 CASE_TEST(stat_timestamps); EXPECT_SYSZR(1, test_stat_timestamps()); break; 1488 CASE_TEST(symlink_root); EXPECT_SYSER(1, symlink("/", "/"), -1, EEXIST); break; 1489 CASE_TEST(timer); EXPECT_SYSZR(1, test_timer()); break; 1490 CASE_TEST(timerfd); EXPECT_SYSZR(1, test_timerfd()); break; 1491 CASE_TEST(uname); EXPECT_SYSZR(proc, test_uname()); break; 1492 CASE_TEST(uname_fault); EXPECT_SYSER(1, uname(NULL), -1, EFAULT); break; 1493 CASE_TEST(unlink_root); EXPECT_SYSER(1, unlink("/"), -1, EISDIR); break; 1494 CASE_TEST(unlink_blah); EXPECT_SYSER(1, unlink("/proc/self/blah"), -1, ENOENT); break; 1495 CASE_TEST(vfork); EXPECT_SYSZR(1, test_fork(FORK_VFORK)); break; 1496 CASE_TEST(wait_child); EXPECT_SYSER(1, wait(&tmp), -1, ECHILD); break; 1497 CASE_TEST(waitpid_min); EXPECT_SYSER(1, waitpid(INT_MIN, &tmp, WNOHANG), -1, ESRCH); break; 1498 CASE_TEST(waitpid_child); EXPECT_SYSER(1, waitpid(getpid(), &tmp, WNOHANG), -1, ECHILD); break; 1499 CASE_TEST(write_badf); EXPECT_SYSER(1, write(-1, &tmp, 1), -1, EBADF); break; 1500 CASE_TEST(write_zero); EXPECT_SYSZR(1, write(1, &tmp, 0)); break; 1501 CASE_TEST(readv_badf); EXPECT_SYSER(1, readv(-1, &iov_one, 1), -1, EBADF); break; 1502 CASE_TEST(readv_zero); EXPECT_SYSZR(1, readv(0, NULL, 0)); break; 1503 CASE_TEST(writev_badf); EXPECT_SYSER(1, writev(-1, &iov_one, 1), -1, EBADF); break; 1504 CASE_TEST(writev_zero); EXPECT_SYSZR(1, writev(1, NULL, 0)); break; 1505 CASE_TEST(ptrace); tmp = ptrace(PTRACE_CONT, getpid(), NULL, NULL); EXPECT_SYSER(tmp != -1 && errno != ENOSYS, tmp, -1, EFAULT); break; 1506 CASE_TEST(syscall_noargs); EXPECT_SYSEQ(1, syscall(__NR_getpid), getpid()); break; 1507 CASE_TEST(syscall_args); EXPECT_SYSER(1, syscall(__NR_statx, 0, NULL, 0, 0, NULL), -1, EFAULT); break; 1508 CASE_TEST(_syscall_noargs); EXPECT_SYSEQ(is_nolibc, _syscall(__NR_getpid), getpid()); break; 1509 CASE_TEST(_syscall_args); EXPECT_SYSEQ(is_nolibc, _syscall(__NR_statx, 0, NULL, 0, 0, NULL), -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 CASE_TEST(bswap_16); EXPECT_EQ(1, bswap_16(0x0123), 0x2301); break; 1746 CASE_TEST(bswap_32); EXPECT_EQ(1, bswap_32(0x01234567), 0x67452301); break; 1747 CASE_TEST(bswap_64); EXPECT_EQ(1, bswap_64(0x0123456789abcdef), 0xefcdab8967452301); break; 1748 CASE_TEST(htobe16); EXPECT_EQ(1, htobe16(is_le ? 0x0123 : 0x2301), 0x2301); break; 1749 CASE_TEST(htole16); EXPECT_EQ(1, htole16(is_le ? 0x0123 : 0x2301), 0x0123); break; 1750 CASE_TEST(htobe32); EXPECT_EQ(1, htobe32(is_le ? 0x01234567 : 0x67452301), 0x67452301); break; 1751 CASE_TEST(htole32); EXPECT_EQ(1, htole32(is_le ? 0x01234567 : 0x67452301), 0x01234567); break; 1752 CASE_TEST(htobe64); EXPECT_EQ(1, htobe64(is_le ? 0x0123456789000000 : 0x8967452301), 0x8967452301); break; 1753 CASE_TEST(htole64); EXPECT_EQ(1, htole64(is_le ? 0x0123456789 : 0x8967452301000000), 0x0123456789); break; 1754 1755 case __LINE__: 1756 return ret; /* must be last */ 1757 /* note: do not set any defaults so as to permit holes above */ 1758 } 1759 } 1760 return ret; 1761 } 1762 1763 #define EXPECT_VFPRINTF(cond, expected, fmt, ...) \ 1764 do { if (!(cond)) result(llen, SKIPPED); else ret += expect_vfprintf(llen, expected, fmt, ##__VA_ARGS__); } while (0) 1765 1766 #define VFPRINTF_LEN 25 1767 static int expect_vfprintf(int llen, const char *expected, const char *fmt, ...) 1768 { 1769 char buf[VFPRINTF_LEN + 80]; 1770 unsigned int cmp_len; 1771 va_list args; 1772 ssize_t written, expected_len; 1773 1774 /* Fill and terminate buf[] to check for overlong/absent writes */ 1775 memset(buf, 0xa5, sizeof(buf) - 1); 1776 buf[sizeof(buf) - 1] = 0; 1777 1778 va_start(args, fmt); 1779 /* Limit buffer length to test truncation */ 1780 written = vsnprintf(buf, VFPRINTF_LEN + 1, fmt, args); 1781 va_end(args); 1782 1783 llen += printf(" \"%s\"", buf); 1784 1785 expected_len = strlen(expected); 1786 if (expected_len > VFPRINTF_LEN) { 1787 /* Indicate truncated in test output */ 1788 llen += printf("+"); 1789 cmp_len = VFPRINTF_LEN; 1790 } else { 1791 cmp_len = expected_len; 1792 } 1793 1794 if (memcmp(expected, buf, cmp_len) || buf[cmp_len]) { 1795 llen += printf(" should be \"%.*s\"", VFPRINTF_LEN, expected); 1796 result(llen, FAIL); 1797 return 1; 1798 } 1799 1800 if (written != expected_len) { 1801 llen += printf(" written(%d) != %d", (int)written, (int)expected_len); 1802 result(llen, FAIL); 1803 return 1; 1804 } 1805 1806 /* Check for any overwrites after the actual data. */ 1807 while (++cmp_len < sizeof(buf) - 1) { 1808 if ((unsigned char)buf[cmp_len] != 0xa5) { 1809 llen += printf(" overwrote buf[%d] with 0x%x", cmp_len, buf[cmp_len]); 1810 result(llen, FAIL); 1811 return 1; 1812 } 1813 } 1814 1815 result(llen, OK); 1816 return 0; 1817 } 1818 1819 static int test_scanf(void) 1820 { 1821 unsigned long long ull; 1822 unsigned long ul; 1823 unsigned int u; 1824 long long ll; 1825 long l; 1826 void *p; 1827 int i; 1828 1829 /* return __LINE__ to point to the specific failure */ 1830 1831 /* test EOF */ 1832 if (sscanf("", "foo") != EOF) 1833 return __LINE__; 1834 1835 /* test simple literal without placeholder */ 1836 if (sscanf("foo", "foo") != 0) 1837 return __LINE__; 1838 1839 /* test single placeholder */ 1840 if (sscanf("123", "%d", &i) != 1) 1841 return __LINE__; 1842 1843 if (i != 123) 1844 return __LINE__; 1845 1846 /* test multiple place holders and separators */ 1847 if (sscanf("a123b456c0x90", "a%db%uc%p", &i, &u, &p) != 3) 1848 return __LINE__; 1849 1850 if (i != 123) 1851 return __LINE__; 1852 1853 if (u != 456) 1854 return __LINE__; 1855 1856 if (p != (void *)0x90) 1857 return __LINE__; 1858 1859 /* test space handling */ 1860 if (sscanf("a b1", "a b%d", &i) != 1) 1861 return __LINE__; 1862 1863 if (i != 1) 1864 return __LINE__; 1865 1866 /* test literal percent */ 1867 if (sscanf("a%1", "a%%%d", &i) != 1) 1868 return __LINE__; 1869 1870 if (i != 1) 1871 return __LINE__; 1872 1873 /* test stdint.h types */ 1874 if (sscanf("1|2|3|4|5|6", 1875 "%d|%ld|%lld|%u|%lu|%llu", 1876 &i, &l, &ll, &u, &ul, &ull) != 6) 1877 return __LINE__; 1878 1879 if (i != 1 || l != 2 || ll != 3 || 1880 u != 4 || ul != 5 || ull != 6) 1881 return __LINE__; 1882 1883 return 0; 1884 } 1885 1886 static int test_printf_error(void) 1887 { 1888 int fd, ret, saved_errno; 1889 1890 fd = open("/dev/full", O_RDWR); 1891 if (fd == -1) 1892 return 1; 1893 1894 errno = 0; 1895 ret = dprintf(fd, "foo"); 1896 saved_errno = errno; 1897 close(fd); 1898 1899 if (ret != -1) 1900 return 2; 1901 1902 if (saved_errno != ENOSPC) 1903 return 3; 1904 1905 return 0; 1906 } 1907 1908 int test_asprintf(void) 1909 { 1910 char *str; 1911 int ret; 1912 1913 ret = asprintf(&str, "foo%s", "bar"); 1914 if (ret == -1) 1915 return 1; 1916 1917 if (ret != 6) { 1918 free(str); 1919 return 2; 1920 } 1921 1922 if (memcmp(str, "foobar", 6) != 0) { 1923 free(str); 1924 return 3; 1925 } 1926 1927 free(str); 1928 return 0; 1929 } 1930 1931 static int run_printf(int min, int max) 1932 { 1933 int test; 1934 int ret = 0; 1935 1936 for (test = min; test >= 0 && test <= max; test++) { 1937 int llen = 0; /* line length */ 1938 1939 /* avoid leaving empty lines below, this will insert holes into 1940 * test numbers. 1941 */ 1942 switch (test + __LINE__ + 1) { 1943 CASE_TEST(empty); EXPECT_VFPRINTF(1, "", ""); break; 1944 CASE_TEST(simple); EXPECT_VFPRINTF(1, "foo", "foo"); break; 1945 CASE_TEST(string); EXPECT_VFPRINTF(1, "foo", "%s", "foo"); break; 1946 CASE_TEST(number); EXPECT_VFPRINTF(1, "1234", "%d", 1234); break; 1947 CASE_TEST(negnumber); EXPECT_VFPRINTF(1, "-1234", "%d", -1234); break; 1948 CASE_TEST(num_sign); EXPECT_VFPRINTF(1, "| 1|+2|+3|+4|5|", "|% d|%+d|% +d|%+ d|%#d|", 1, 2, 3, 4, 5); break; 1949 CASE_TEST(unsigned); EXPECT_VFPRINTF(1, "12345", "%u", 12345); break; 1950 CASE_TEST(signed_max); EXPECT_VFPRINTF(1, "2147483647", "%i", ~0u >> 1); break; 1951 CASE_TEST(signed_min); EXPECT_VFPRINTF(1, "-2147483648", "%i", (~0u >> 1) + 1); break; 1952 CASE_TEST(unsigned_max); EXPECT_VFPRINTF(1, "4294967295", "%u", ~0u); break; 1953 CASE_TEST(char); EXPECT_VFPRINTF(1, "|c|d| e|", "|%c|%.0c|%4c|", 'c', 'd', 'e'); break; 1954 CASE_TEST(octal); EXPECT_VFPRINTF(1, "|17| 0033||", "|%o|%6.4o|%.0o|", 017, 033, 0); break; 1955 CASE_TEST(octal_max); EXPECT_VFPRINTF(1, "1777777777777777777777", "%llo", ~0ULL); break; 1956 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; 1957 CASE_TEST(hex_nolibc); EXPECT_VFPRINTF(is_nolibc, "|f|d|", "|%x|%X|", 0xf, 0xd); break; 1958 CASE_TEST(hex_libc); EXPECT_VFPRINTF(!is_nolibc, "|f|D|", "|%x|%X|", 0xf, 0xd); break; 1959 CASE_TEST(hex_alt); EXPECT_VFPRINTF(1, "|0x1| 0x2| 0|", "|%#x|%#5x|%#5x|", 1, 2, 0); break; 1960 CASE_TEST(hex_alt_prec); EXPECT_VFPRINTF(1, "| 0x02|0x03| 0x123|", "|%#5.2x|%#04x|%#6.2x|", 2, 3, 0x123); break; 1961 CASE_TEST(hex_0_alt); EXPECT_VFPRINTF(1, "|0|0000| 00|", "|%#x|%#04x|%#5.2x|", 0, 0, 0); break; 1962 CASE_TEST(pointer); EXPECT_VFPRINTF(1, "0x1", "%p", (void *) 0x1); break; 1963 CASE_TEST(pointer_NULL); EXPECT_VFPRINTF(is_nolibc || is_glibc, "|(nil)|(nil)|", "|%p|%.4p|", (void *)0, (void *)0); break; 1964 CASE_TEST(string_NULL); EXPECT_VFPRINTF(is_nolibc || is_glibc, "|(null)||(null)|", "|%s|%.5s|%.6s|", (void *)0, (void *)0, (void *)0); break; 1965 CASE_TEST(percent); EXPECT_VFPRINTF(1, "a%d42%69%", "a%%d%d%%%d%%", 42, 69); break; 1966 CASE_TEST(perc_qual); EXPECT_VFPRINTF(is_nolibc || is_glibc, "a%d2", "a%-14l%d%d", 2); break; 1967 CASE_TEST(invalid); EXPECT_VFPRINTF(is_nolibc || is_glibc, "a%12yx3%y42%P", "a%12yx%d%y%d%P", 3, 42); break; 1968 CASE_TEST(intmax_max); EXPECT_VFPRINTF(1, "9223372036854775807", "%lld", ~0ULL >> 1); break; 1969 CASE_TEST(intmax_min); EXPECT_VFPRINTF(is_nolibc || is_glibc, "-9223372036854775808", "%Li", (~0ULL >> 1) + 1); break; 1970 CASE_TEST(uintmax_max); EXPECT_VFPRINTF(1, "18446744073709551615", "%ju", ~0ULL); break; 1971 CASE_TEST(truncation); EXPECT_VFPRINTF(1, "012345678901234567890123456789", "%s", "012345678901234567890123456789"); break; 1972 CASE_TEST(string_width); EXPECT_VFPRINTF(1, " 1", "%10s", "1"); break; 1973 CASE_TEST(string_trunc); EXPECT_VFPRINTF(1, " 12345", "%10.5s", "1234567890"); break; 1974 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; 1975 CASE_TEST(number_width); EXPECT_VFPRINTF(1, " 1", "%10d", 1); break; 1976 CASE_TEST(number_left); EXPECT_VFPRINTF(1, "|-5 |", "|%-8d|", -5); break; 1977 CASE_TEST(string_align); EXPECT_VFPRINTF(1, "|foo |", "|%-8s|", "foo"); break; 1978 CASE_TEST(width_trunc); EXPECT_VFPRINTF(1, " 1", "%30d", 1); break; 1979 CASE_TEST(width_tr_lft); EXPECT_VFPRINTF(1, "1 ", "%-30d", 1); break; 1980 CASE_TEST(number_pad); EXPECT_VFPRINTF(1, "0000000005", "%010d", 5); break; 1981 CASE_TEST(number_pad); EXPECT_VFPRINTF(1, "|0000000005|0x1234|", "|%010d|%#01x|", 5, 0x1234); break; 1982 CASE_TEST(num_pad_neg); EXPECT_VFPRINTF(1, "-000000005", "%010d", -5); break; 1983 CASE_TEST(num_pad_hex); EXPECT_VFPRINTF(1, "00fffffffb", "%010x", -5); break; 1984 CASE_TEST(num_pad_trunc);EXPECT_VFPRINTF(is_nolibc, " 0000000000000000000000000000005", "%035d", 5); break; /* max 31 '0' can be added */ 1985 CASE_TEST(num_p_tr_libc);EXPECT_VFPRINTF(!is_nolibc, "00000000000000000000000000000000005", "%035d", 5); break; 1986 CASE_TEST(number_prec); EXPECT_VFPRINTF(1, " 00005", "%10.5d", 5); break; 1987 CASE_TEST(num_prec_neg); EXPECT_VFPRINTF(1, " -00005", "%10.5d", -5); break; 1988 CASE_TEST(number_var); EXPECT_VFPRINTF(1, "| -00005|5 |", "|%*.*d|%*.*d|", 10, 5, -5, -2, -10, 5); break; 1989 CASE_TEST(num_0_prec_0); EXPECT_VFPRINTF(1, "|| |+||||", "|%.0d|% .0d|%+.0d|%.0u|%.0x|%#.0x|", 0, 0, 0, 0, 0, 0); break; 1990 CASE_TEST(errno); errno = 22; EXPECT_VFPRINTF(is_nolibc, "errno=22", "%m"); break; 1991 CASE_TEST(errno-neg); errno = -22; EXPECT_VFPRINTF(is_nolibc, "errno=-22 ", "%-12m"); break; 1992 CASE_TEST(scanf); EXPECT_ZR(1, test_scanf()); break; 1993 CASE_TEST(printf_error); EXPECT_ZR(1, test_printf_error()); break; 1994 CASE_TEST(asprintf); EXPECT_ZR(1, test_asprintf()); break; 1995 case __LINE__: 1996 return ret; /* must be last */ 1997 /* note: do not set any defaults so as to permit holes above */ 1998 } 1999 } 2000 return ret; 2001 } 2002 2003 __attribute__((no_sanitize("undefined"))) 2004 static int smash_stack(void) 2005 { 2006 char buf[100]; 2007 volatile char *ptr = buf; 2008 size_t i; 2009 2010 for (i = 0; i < 200; i++) 2011 ptr[i] = 'P'; 2012 2013 return 1; 2014 } 2015 2016 static int run_protection(int min __attribute__((unused)), 2017 int max __attribute__((unused))) 2018 { 2019 pid_t pid; 2020 int llen = 0, status; 2021 struct rlimit rlimit = { 0, 0 }; 2022 2023 llen += printf("0 -fstackprotector "); 2024 2025 #if !defined(_NOLIBC_STACKPROTECTOR) 2026 llen += printf("not supported"); 2027 result(llen, SKIPPED); 2028 return 0; 2029 #endif 2030 2031 #if defined(_NOLIBC_STACKPROTECTOR) 2032 if (!__stack_chk_guard) { 2033 llen += printf("__stack_chk_guard not initialized"); 2034 result(llen, FAIL); 2035 return 1; 2036 } 2037 #endif 2038 2039 pid = -1; 2040 pid = fork(); 2041 2042 switch (pid) { 2043 case -1: 2044 llen += printf("fork()"); 2045 result(llen, FAIL); 2046 return 1; 2047 2048 case 0: 2049 close(STDOUT_FILENO); 2050 close(STDERR_FILENO); 2051 2052 prctl(PR_SET_DUMPABLE, 0, 0, 0, 0); 2053 setrlimit(RLIMIT_CORE, &rlimit); 2054 smash_stack(); 2055 return 1; 2056 2057 default: 2058 pid = waitpid(pid, &status, 0); 2059 2060 if (pid == -1 || !WIFSIGNALED(status) || WTERMSIG(status) != SIGABRT) { 2061 llen += printf("waitpid()"); 2062 result(llen, FAIL); 2063 return 1; 2064 } 2065 result(llen, OK); 2066 return 0; 2067 } 2068 } 2069 2070 /* prepare what needs to be prepared for pid 1 (stdio, /dev, /proc, etc) */ 2071 int prepare(void) 2072 { 2073 struct stat stat_buf; 2074 2075 /* It's possible that /dev doesn't even exist or was not mounted, so 2076 * we'll try to create it, mount it, or create minimal entries into it. 2077 * We want at least /dev/null and /dev/console. 2078 */ 2079 if (stat("/dev/.", &stat_buf) == 0 || mkdir("/dev", 0755) == 0) { 2080 if (stat("/dev/console", &stat_buf) != 0 || 2081 stat("/dev/null", &stat_buf) != 0 || 2082 stat("/dev/zero", &stat_buf) != 0 || 2083 stat("/dev/full", &stat_buf) != 0) { 2084 /* try devtmpfs first, otherwise fall back to manual creation */ 2085 if (mount("/dev", "/dev", "devtmpfs", 0, 0) != 0) { 2086 mknod("/dev/console", 0600 | S_IFCHR, makedev(5, 1)); 2087 mknod("/dev/null", 0666 | S_IFCHR, makedev(1, 3)); 2088 mknod("/dev/zero", 0666 | S_IFCHR, makedev(1, 5)); 2089 mknod("/dev/full", 0666 | S_IFCHR, makedev(1, 7)); 2090 } 2091 } 2092 } 2093 2094 /* If no /dev/console was found before calling init, stdio is closed so 2095 * we need to reopen it from /dev/console. If it failed above, it will 2096 * still fail here and we cannot emit a message anyway. 2097 */ 2098 if (close(dup(1)) == -1) { 2099 int fd = open("/dev/console", O_RDWR); 2100 2101 if (fd >= 0) { 2102 if (fd != 0) 2103 dup2(fd, 0); 2104 if (fd != 1) 2105 dup2(fd, 1); 2106 if (fd != 2) 2107 dup2(fd, 2); 2108 if (fd > 2) 2109 close(fd); 2110 puts("\nSuccessfully reopened /dev/console."); 2111 } 2112 } 2113 2114 /* try to mount /proc if not mounted. Silently fail otherwise */ 2115 if (stat("/proc/.", &stat_buf) == 0 || mkdir("/proc", 0755) == 0) { 2116 if (stat("/proc/self", &stat_buf) != 0) { 2117 /* If not mountable, remove /proc completely to avoid misuse */ 2118 if (mount("none", "/proc", "proc", 0, 0) != 0) 2119 rmdir("/proc"); 2120 } 2121 } 2122 2123 /* some tests rely on a writable /tmp */ 2124 mkdir("/tmp", 0755); 2125 2126 return 0; 2127 } 2128 2129 /* This is the definition of known test names, with their functions */ 2130 static const struct test test_names[] = { 2131 /* add new tests here */ 2132 { .name = "startup", .func = run_startup }, 2133 { .name = "syscall", .func = run_syscall }, 2134 { .name = "stdlib", .func = run_stdlib }, 2135 { .name = "printf", .func = run_printf }, 2136 { .name = "protection", .func = run_protection }, 2137 { 0 } 2138 }; 2139 2140 static int is_setting_valid(char *test) 2141 { 2142 int idx, len, test_len, valid = 0; 2143 char delimiter; 2144 2145 if (!test) 2146 return valid; 2147 2148 test_len = strlen(test); 2149 2150 for (idx = 0; test_names[idx].name; idx++) { 2151 len = strlen(test_names[idx].name); 2152 if (test_len < len) 2153 continue; 2154 2155 if (strncmp(test, test_names[idx].name, len) != 0) 2156 continue; 2157 2158 delimiter = test[len]; 2159 if (delimiter != ':' && delimiter != ',' && delimiter != '\0') 2160 continue; 2161 2162 valid = 1; 2163 break; 2164 } 2165 2166 return valid; 2167 } 2168 2169 int main(int argc, char **argv, char **envp) 2170 { 2171 int min = 0; 2172 int max = INT_MAX; 2173 int ret = 0; 2174 int err; 2175 int idx; 2176 char *test; 2177 2178 argv0 = argv[0]; 2179 test_argc = argc; 2180 test_argv = argv; 2181 test_envp = envp; 2182 2183 /* when called as init, it's possible that no console was opened, for 2184 * example if no /dev file system was provided. We'll check that fd#1 2185 * was opened, and if not we'll attempt to create and open /dev/console 2186 * and /dev/null that we'll use for later tests. 2187 */ 2188 if (getpid() == 1) 2189 prepare(); 2190 2191 /* the definition of a series of tests comes from either argv[1] or the 2192 * "NOLIBC_TEST" environment variable. It's made of a comma-delimited 2193 * series of test names and optional ranges: 2194 * syscall:5-15[:.*],stdlib:8-10 2195 */ 2196 test = argv[1]; 2197 if (!is_setting_valid(test)) 2198 test = getenv("NOLIBC_TEST"); 2199 2200 if (is_setting_valid(test)) { 2201 char *comma, *colon, *dash, *value; 2202 2203 do { 2204 comma = strchr(test, ','); 2205 if (comma) 2206 *(comma++) = '\0'; 2207 2208 colon = strchr(test, ':'); 2209 if (colon) 2210 *(colon++) = '\0'; 2211 2212 for (idx = 0; test_names[idx].name; idx++) { 2213 if (strcmp(test, test_names[idx].name) == 0) 2214 break; 2215 } 2216 2217 if (test_names[idx].name) { 2218 /* The test was named, it will be called at least 2219 * once. We may have an optional range at <colon> 2220 * here, which defaults to the full range. 2221 */ 2222 do { 2223 min = 0; max = INT_MAX; 2224 value = colon; 2225 if (value && *value) { 2226 colon = strchr(value, ':'); 2227 if (colon) 2228 *(colon++) = '\0'; 2229 2230 dash = strchr(value, '-'); 2231 if (dash) 2232 *(dash++) = '\0'; 2233 2234 /* support :val: :min-max: :min-: :-max: */ 2235 if (*value) 2236 min = atoi(value); 2237 if (!dash) 2238 max = min; 2239 else if (*dash) 2240 max = atoi(dash); 2241 2242 value = colon; 2243 } 2244 2245 /* now's time to call the test */ 2246 printf("Running test '%s'\n", test_names[idx].name); 2247 err = test_names[idx].func(min, max); 2248 ret += err; 2249 printf("Errors during this test: %d\n\n", err); 2250 } while (colon && *colon); 2251 } else 2252 printf("Ignoring unknown test name '%s'\n", test); 2253 2254 test = comma; 2255 } while (test && *test); 2256 } else { 2257 /* no test mentioned, run everything */ 2258 for (idx = 0; test_names[idx].name; idx++) { 2259 printf("Running test '%s'\n", test_names[idx].name); 2260 err = test_names[idx].func(min, max); 2261 ret += err; 2262 printf("Errors during this test: %d\n\n", err); 2263 } 2264 } 2265 2266 printf("Total number of errors: %d\n", ret); 2267 2268 if (getpid() == 1) { 2269 /* we're running as init, there's no other process on the 2270 * system, thus likely started from a VM for a quick check. 2271 * Exiting will provoke a kernel panic that may be reported 2272 * as an error by Qemu or the hypervisor, while stopping 2273 * cleanly will often be reported as a success. This allows 2274 * to use the output of this program for bisecting kernels. 2275 */ 2276 printf("Leaving init with final status: %d\n", !!ret); 2277 if (ret == 0) 2278 reboot(RB_POWER_OFF); 2279 #if defined(__x86_64__) 2280 /* QEMU started with "-device isa-debug-exit -no-reboot" will 2281 * exit with status code 2N+1 when N is written to 0x501. We 2282 * hard-code the syscall here as it's arch-dependent. 2283 */ 2284 else if (syscall(__NR_ioperm, 0x501, 1, 1) == 0) 2285 __asm__ volatile ("outb %%al, %%dx" :: "d"(0x501), "a"(0)); 2286 /* if it does nothing, fall back to the regular panic */ 2287 #endif 2288 } 2289 2290 printf("Exiting with status %d\n", !!ret); 2291 return !!ret; 2292 } 2293