1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Test the powerpc alignment handler on POWER8/POWER9 4 * 5 * Copyright (C) 2017 IBM Corporation (Michael Neuling, Andrew Donnellan) 6 */ 7 8 /* 9 * This selftest exercises the powerpc alignment fault handler. 10 * 11 * We create two sets of source and destination buffers, one in regular memory, 12 * the other cache-inhibited (by default we use /dev/fb0 for this, but an 13 * alterative path for cache-inhibited memory may be provided). 14 * 15 * One way to get cache-inhibited memory is to use the "mem" kernel parameter 16 * to limit the kernel to less memory than actually exists. Addresses above 17 * the limit may still be accessed but will be treated as cache-inhibited. For 18 * example, if there is actually 4GB of memory and the parameter "mem=3GB" is 19 * used, memory from address 0xC0000000 onwards is treated as cache-inhibited. 20 * To access this region /dev/mem is used. The kernel should be configured 21 * without CONFIG_STRICT_DEVMEM. In this case use: 22 * ./alignment_handler /dev/mem 0xc0000000 23 * 24 * We initialise the source buffers, then use whichever set of load/store 25 * instructions is under test to copy bytes from the source buffers to the 26 * destination buffers. For the regular buffers, these instructions will 27 * execute normally. For the cache-inhibited buffers, these instructions 28 * will trap and cause an alignment fault, and the alignment fault handler 29 * will emulate the particular instruction under test. We then compare the 30 * destination buffers to ensure that the native and emulated cases give the 31 * same result. 32 * 33 * TODO: 34 * - Any FIXMEs below 35 * - Test VSX regs < 32 and > 32 36 * - Test all loads and stores 37 * - Check update forms do update register 38 * - Test alignment faults over page boundary 39 * 40 * Some old binutils may not support all the instructions. 41 */ 42 43 44 #include <sys/mman.h> 45 #include <sys/types.h> 46 #include <sys/stat.h> 47 #include <fcntl.h> 48 #include <unistd.h> 49 #include <stdbool.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <assert.h> 54 #include <getopt.h> 55 #include <setjmp.h> 56 #include <signal.h> 57 58 #include "utils.h" 59 #include "instructions.h" 60 61 int bufsize; 62 int debug; 63 int testing; 64 volatile int gotsig; 65 char *cipath = "/dev/fb0"; 66 long cioffset; 67 68 void sighandler(int sig, siginfo_t *info, void *ctx) 69 { 70 ucontext_t *ucp = ctx; 71 72 if (!testing) { 73 signal(sig, SIG_DFL); 74 kill(0, sig); 75 } 76 gotsig = sig; 77 #ifdef __powerpc64__ 78 ucp->uc_mcontext.gp_regs[PT_NIP] += 4; 79 #else 80 ucp->uc_mcontext.uc_regs->gregs[PT_NIP] += 4; 81 #endif 82 } 83 84 #define XFORM(reg, n) " " #reg " ,%"#n",%2 ;" 85 #define DFORM(reg, n) " " #reg " ,0(%"#n") ;" 86 87 #define TEST(name, ld_op, st_op, form, ld_reg, st_reg) \ 88 void test_##name(char *s, char *d) \ 89 { \ 90 asm volatile( \ 91 #ld_op form(ld_reg, 0) \ 92 #st_op form(st_reg, 1) \ 93 :: "r"(s), "r"(d), "r"(0) \ 94 : "memory", "vs0", "vs32", "r31"); \ 95 } \ 96 rc |= do_test(#name, test_##name) 97 98 #define TESTP(name, ld_op, st_op, ld_reg, st_reg) \ 99 void test_##name(char *s, char *d) \ 100 { \ 101 asm volatile( \ 102 ld_op(ld_reg, %0, 0, 0) \ 103 st_op(st_reg, %1, 0, 0) \ 104 :: "r"(s), "r"(d), "r"(0) \ 105 : "memory", "vs0", "vs32", "r31"); \ 106 } \ 107 rc |= do_test(#name, test_##name) 108 109 #define LOAD_VSX_XFORM_TEST(op) TEST(op, op, stxvd2x, XFORM, 32, 32) 110 #define STORE_VSX_XFORM_TEST(op) TEST(op, lxvd2x, op, XFORM, 32, 32) 111 #define LOAD_VSX_DFORM_TEST(op) TEST(op, op, stxv, DFORM, 32, 32) 112 #define STORE_VSX_DFORM_TEST(op) TEST(op, lxv, op, DFORM, 32, 32) 113 #define LOAD_VMX_XFORM_TEST(op) TEST(op, op, stxvd2x, XFORM, 0, 32) 114 #define STORE_VMX_XFORM_TEST(op) TEST(op, lxvd2x, op, XFORM, 32, 0) 115 #define LOAD_VMX_DFORM_TEST(op) TEST(op, op, stxv, DFORM, 0, 32) 116 #define STORE_VMX_DFORM_TEST(op) TEST(op, lxv, op, DFORM, 32, 0) 117 118 #define LOAD_XFORM_TEST(op) TEST(op, op, stdx, XFORM, 31, 31) 119 #define STORE_XFORM_TEST(op) TEST(op, ldx, op, XFORM, 31, 31) 120 #define LOAD_DFORM_TEST(op) TEST(op, op, std, DFORM, 31, 31) 121 #define STORE_DFORM_TEST(op) TEST(op, ld, op, DFORM, 31, 31) 122 123 #define LOAD_FLOAT_DFORM_TEST(op) TEST(op, op, stfd, DFORM, 0, 0) 124 #define STORE_FLOAT_DFORM_TEST(op) TEST(op, lfd, op, DFORM, 0, 0) 125 #define LOAD_FLOAT_XFORM_TEST(op) TEST(op, op, stfdx, XFORM, 0, 0) 126 #define STORE_FLOAT_XFORM_TEST(op) TEST(op, lfdx, op, XFORM, 0, 0) 127 128 #define LOAD_MLS_PREFIX_TEST(op) TESTP(op, op, PSTD, 31, 31) 129 #define STORE_MLS_PREFIX_TEST(op) TESTP(op, PLD, op, 31, 31) 130 131 #define LOAD_8LS_PREFIX_TEST(op) TESTP(op, op, PSTD, 31, 31) 132 #define STORE_8LS_PREFIX_TEST(op) TESTP(op, PLD, op, 31, 31) 133 134 #define LOAD_FLOAT_MLS_PREFIX_TEST(op) TESTP(op, op, PSTFD, 0, 0) 135 #define STORE_FLOAT_MLS_PREFIX_TEST(op) TESTP(op, PLFD, op, 0, 0) 136 137 #define LOAD_VSX_8LS_PREFIX_TEST(op, tail) TESTP(op, op, PSTXV ## tail, 0, 32) 138 #define STORE_VSX_8LS_PREFIX_TEST(op, tail) TESTP(op, PLXV ## tail, op, 32, 0) 139 140 /* FIXME: Unimplemented tests: */ 141 // STORE_DFORM_TEST(stq) /* FIXME: need two registers for quad */ 142 // STORE_DFORM_TEST(stswi) /* FIXME: string instruction */ 143 144 // STORE_XFORM_TEST(stwat) /* AMO can't emulate or run on CI */ 145 // STORE_XFORM_TEST(stdat) /* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ */ 146 147 148 /* preload byte by byte */ 149 void preload_data(void *dst, int offset, int width) 150 { 151 char *c = dst; 152 int i; 153 154 c += offset; 155 156 for (i = 0 ; i < width ; i++) 157 c[i] = i; 158 } 159 160 int test_memcpy(void *dst, void *src, int size, int offset, 161 void (*test_func)(char *, char *)) 162 { 163 char *s, *d; 164 165 s = src; 166 s += offset; 167 d = dst; 168 d += offset; 169 170 assert(size == 16); 171 gotsig = 0; 172 testing = 1; 173 174 test_func(s, d); /* run the actual test */ 175 176 testing = 0; 177 if (gotsig) { 178 if (debug) 179 printf(" Got signal %i\n", gotsig); 180 return 1; 181 } 182 return 0; 183 } 184 185 void dumpdata(char *s1, char *s2, int n, char *test_name) 186 { 187 int i; 188 189 printf(" %s: unexpected result:\n", test_name); 190 printf(" mem:"); 191 for (i = 0; i < n; i++) 192 printf(" %02x", s1[i]); 193 printf("\n"); 194 printf(" ci: "); 195 for (i = 0; i < n; i++) 196 printf(" %02x", s2[i]); 197 printf("\n"); 198 } 199 200 int test_memcmp(void *s1, void *s2, int n, int offset, char *test_name) 201 { 202 char *s1c, *s2c; 203 204 s1c = s1; 205 s1c += offset; 206 s2c = s2; 207 s2c += offset; 208 209 if (memcmp(s1c, s2c, n)) { 210 if (debug) { 211 printf("\n Compare failed. Offset:%i length:%i\n", 212 offset, n); 213 dumpdata(s1c, s2c, n, test_name); 214 } 215 return 1; 216 } 217 return 0; 218 } 219 220 /* 221 * Do two memcpy tests using the same instructions. One cachable 222 * memory and the other doesn't. 223 */ 224 int do_test(char *test_name, void (*test_func)(char *, char *)) 225 { 226 int offset, width, fd, rc, r; 227 void *mem0, *mem1, *ci0, *ci1; 228 229 printf("\tDoing %s:\t", test_name); 230 231 fd = open(cipath, O_RDWR); 232 if (fd < 0) { 233 printf("\n"); 234 perror("Can't open ci file now?"); 235 return 1; 236 } 237 238 ci0 = mmap(NULL, bufsize, PROT_WRITE | PROT_READ, MAP_SHARED, 239 fd, cioffset); 240 ci1 = mmap(NULL, bufsize, PROT_WRITE | PROT_READ, MAP_SHARED, 241 fd, cioffset + bufsize); 242 243 if ((ci0 == MAP_FAILED) || (ci1 == MAP_FAILED)) { 244 printf("\n"); 245 perror("mmap failed"); 246 SKIP_IF(1); 247 } 248 249 rc = posix_memalign(&mem0, bufsize, bufsize); 250 if (rc) { 251 printf("\n"); 252 return rc; 253 } 254 255 rc = posix_memalign(&mem1, bufsize, bufsize); 256 if (rc) { 257 printf("\n"); 258 free(mem0); 259 return rc; 260 } 261 262 rc = 0; 263 /* offset = 0 no alignment fault, so skip */ 264 for (offset = 1; offset < 16; offset++) { 265 width = 16; /* vsx == 16 bytes */ 266 r = 0; 267 268 /* load pattern into memory byte by byte */ 269 preload_data(ci0, offset, width); 270 preload_data(mem0, offset, width); // FIXME: remove?? 271 memcpy(ci0, mem0, bufsize); 272 memcpy(ci1, mem1, bufsize); /* initialise output to the same */ 273 274 /* sanity check */ 275 test_memcmp(mem0, ci0, width, offset, test_name); 276 277 r |= test_memcpy(ci1, ci0, width, offset, test_func); 278 r |= test_memcpy(mem1, mem0, width, offset, test_func); 279 if (r && !debug) { 280 printf("FAILED: Got signal"); 281 rc = 1; 282 break; 283 } 284 285 r |= test_memcmp(mem1, ci1, width, offset, test_name); 286 if (r && !debug) { 287 printf("FAILED: Wrong Data"); 288 rc = 1; 289 break; 290 } 291 } 292 293 if (rc == 0) 294 printf("PASSED"); 295 296 printf("\n"); 297 298 munmap(ci0, bufsize); 299 munmap(ci1, bufsize); 300 free(mem0); 301 free(mem1); 302 close(fd); 303 304 return rc; 305 } 306 307 static bool can_open_cifile(void) 308 { 309 int fd; 310 311 fd = open(cipath, O_RDWR); 312 if (fd < 0) 313 return false; 314 315 close(fd); 316 return true; 317 } 318 319 int test_alignment_handler_vsx_206(void) 320 { 321 int rc = 0; 322 323 SKIP_IF(!can_open_cifile()); 324 SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06)); 325 326 printf("VSX: 2.06B\n"); 327 LOAD_VSX_XFORM_TEST(lxvd2x); 328 LOAD_VSX_XFORM_TEST(lxvw4x); 329 LOAD_VSX_XFORM_TEST(lxsdx); 330 LOAD_VSX_XFORM_TEST(lxvdsx); 331 STORE_VSX_XFORM_TEST(stxvd2x); 332 STORE_VSX_XFORM_TEST(stxvw4x); 333 STORE_VSX_XFORM_TEST(stxsdx); 334 return rc; 335 } 336 337 int test_alignment_handler_vsx_207(void) 338 { 339 int rc = 0; 340 341 SKIP_IF(!can_open_cifile()); 342 SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07)); 343 344 printf("VSX: 2.07B\n"); 345 LOAD_VSX_XFORM_TEST(lxsspx); 346 LOAD_VSX_XFORM_TEST(lxsiwax); 347 LOAD_VSX_XFORM_TEST(lxsiwzx); 348 STORE_VSX_XFORM_TEST(stxsspx); 349 STORE_VSX_XFORM_TEST(stxsiwx); 350 return rc; 351 } 352 353 int test_alignment_handler_vsx_300(void) 354 { 355 int rc = 0; 356 357 SKIP_IF(!can_open_cifile()); 358 359 SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00)); 360 printf("VSX: 3.00B\n"); 361 LOAD_VMX_DFORM_TEST(lxsd); 362 LOAD_VSX_XFORM_TEST(lxsibzx); 363 LOAD_VSX_XFORM_TEST(lxsihzx); 364 LOAD_VMX_DFORM_TEST(lxssp); 365 LOAD_VSX_DFORM_TEST(lxv); 366 LOAD_VSX_XFORM_TEST(lxvb16x); 367 LOAD_VSX_XFORM_TEST(lxvh8x); 368 LOAD_VSX_XFORM_TEST(lxvx); 369 LOAD_VSX_XFORM_TEST(lxvwsx); 370 LOAD_VSX_XFORM_TEST(lxvl); 371 LOAD_VSX_XFORM_TEST(lxvll); 372 STORE_VMX_DFORM_TEST(stxsd); 373 STORE_VSX_XFORM_TEST(stxsibx); 374 STORE_VSX_XFORM_TEST(stxsihx); 375 STORE_VMX_DFORM_TEST(stxssp); 376 STORE_VSX_DFORM_TEST(stxv); 377 STORE_VSX_XFORM_TEST(stxvb16x); 378 STORE_VSX_XFORM_TEST(stxvh8x); 379 STORE_VSX_XFORM_TEST(stxvx); 380 STORE_VSX_XFORM_TEST(stxvl); 381 STORE_VSX_XFORM_TEST(stxvll); 382 return rc; 383 } 384 385 int test_alignment_handler_vsx_prefix(void) 386 { 387 int rc = 0; 388 389 SKIP_IF(!can_open_cifile()); 390 SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1)); 391 392 printf("VSX: PREFIX\n"); 393 LOAD_VSX_8LS_PREFIX_TEST(PLXSD, 0); 394 LOAD_VSX_8LS_PREFIX_TEST(PLXSSP, 0); 395 LOAD_VSX_8LS_PREFIX_TEST(PLXV0, 0); 396 LOAD_VSX_8LS_PREFIX_TEST(PLXV1, 1); 397 STORE_VSX_8LS_PREFIX_TEST(PSTXSD, 0); 398 STORE_VSX_8LS_PREFIX_TEST(PSTXSSP, 0); 399 STORE_VSX_8LS_PREFIX_TEST(PSTXV0, 0); 400 STORE_VSX_8LS_PREFIX_TEST(PSTXV1, 1); 401 return rc; 402 } 403 404 int test_alignment_handler_integer(void) 405 { 406 int rc = 0; 407 408 SKIP_IF(!can_open_cifile()); 409 410 printf("Integer\n"); 411 LOAD_DFORM_TEST(lbz); 412 LOAD_DFORM_TEST(lbzu); 413 LOAD_XFORM_TEST(lbzx); 414 LOAD_XFORM_TEST(lbzux); 415 LOAD_DFORM_TEST(lhz); 416 LOAD_DFORM_TEST(lhzu); 417 LOAD_XFORM_TEST(lhzx); 418 LOAD_XFORM_TEST(lhzux); 419 LOAD_DFORM_TEST(lha); 420 LOAD_DFORM_TEST(lhau); 421 LOAD_XFORM_TEST(lhax); 422 LOAD_XFORM_TEST(lhaux); 423 LOAD_XFORM_TEST(lhbrx); 424 LOAD_DFORM_TEST(lwz); 425 LOAD_DFORM_TEST(lwzu); 426 LOAD_XFORM_TEST(lwzx); 427 LOAD_XFORM_TEST(lwzux); 428 LOAD_DFORM_TEST(lwa); 429 LOAD_XFORM_TEST(lwax); 430 LOAD_XFORM_TEST(lwaux); 431 LOAD_XFORM_TEST(lwbrx); 432 LOAD_DFORM_TEST(ld); 433 LOAD_DFORM_TEST(ldu); 434 LOAD_XFORM_TEST(ldx); 435 LOAD_XFORM_TEST(ldux); 436 LOAD_DFORM_TEST(lmw); 437 STORE_DFORM_TEST(stb); 438 STORE_XFORM_TEST(stbx); 439 STORE_DFORM_TEST(stbu); 440 STORE_XFORM_TEST(stbux); 441 STORE_DFORM_TEST(sth); 442 STORE_XFORM_TEST(sthx); 443 STORE_DFORM_TEST(sthu); 444 STORE_XFORM_TEST(sthux); 445 STORE_XFORM_TEST(sthbrx); 446 STORE_DFORM_TEST(stw); 447 STORE_XFORM_TEST(stwx); 448 STORE_DFORM_TEST(stwu); 449 STORE_XFORM_TEST(stwux); 450 STORE_XFORM_TEST(stwbrx); 451 STORE_DFORM_TEST(std); 452 STORE_XFORM_TEST(stdx); 453 STORE_DFORM_TEST(stdu); 454 STORE_XFORM_TEST(stdux); 455 STORE_DFORM_TEST(stmw); 456 457 return rc; 458 } 459 460 int test_alignment_handler_integer_206(void) 461 { 462 int rc = 0; 463 464 SKIP_IF(!can_open_cifile()); 465 SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06)); 466 467 printf("Integer: 2.06\n"); 468 469 LOAD_XFORM_TEST(ldbrx); 470 STORE_XFORM_TEST(stdbrx); 471 472 return rc; 473 } 474 475 int test_alignment_handler_integer_prefix(void) 476 { 477 int rc = 0; 478 479 SKIP_IF(!can_open_cifile()); 480 SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1)); 481 482 printf("Integer: PREFIX\n"); 483 LOAD_MLS_PREFIX_TEST(PLBZ); 484 LOAD_MLS_PREFIX_TEST(PLHZ); 485 LOAD_MLS_PREFIX_TEST(PLHA); 486 LOAD_MLS_PREFIX_TEST(PLWZ); 487 LOAD_8LS_PREFIX_TEST(PLWA); 488 LOAD_8LS_PREFIX_TEST(PLD); 489 STORE_MLS_PREFIX_TEST(PSTB); 490 STORE_MLS_PREFIX_TEST(PSTH); 491 STORE_MLS_PREFIX_TEST(PSTW); 492 STORE_8LS_PREFIX_TEST(PSTD); 493 return rc; 494 } 495 496 int test_alignment_handler_vmx(void) 497 { 498 int rc = 0; 499 500 SKIP_IF(!can_open_cifile()); 501 SKIP_IF(!have_hwcap(PPC_FEATURE_HAS_ALTIVEC)); 502 503 printf("VMX\n"); 504 LOAD_VMX_XFORM_TEST(lvx); 505 506 /* 507 * FIXME: These loads only load part of the register, so our 508 * testing method doesn't work. Also they don't take alignment 509 * faults, so it's kinda pointless anyway 510 * 511 LOAD_VMX_XFORM_TEST(lvebx) 512 LOAD_VMX_XFORM_TEST(lvehx) 513 LOAD_VMX_XFORM_TEST(lvewx) 514 LOAD_VMX_XFORM_TEST(lvxl) 515 */ 516 STORE_VMX_XFORM_TEST(stvx); 517 STORE_VMX_XFORM_TEST(stvebx); 518 STORE_VMX_XFORM_TEST(stvehx); 519 STORE_VMX_XFORM_TEST(stvewx); 520 STORE_VMX_XFORM_TEST(stvxl); 521 return rc; 522 } 523 524 int test_alignment_handler_fp(void) 525 { 526 int rc = 0; 527 528 SKIP_IF(!can_open_cifile()); 529 530 printf("Floating point\n"); 531 LOAD_FLOAT_DFORM_TEST(lfd); 532 LOAD_FLOAT_XFORM_TEST(lfdx); 533 LOAD_FLOAT_DFORM_TEST(lfdu); 534 LOAD_FLOAT_XFORM_TEST(lfdux); 535 LOAD_FLOAT_DFORM_TEST(lfs); 536 LOAD_FLOAT_XFORM_TEST(lfsx); 537 LOAD_FLOAT_DFORM_TEST(lfsu); 538 LOAD_FLOAT_XFORM_TEST(lfsux); 539 STORE_FLOAT_DFORM_TEST(stfd); 540 STORE_FLOAT_XFORM_TEST(stfdx); 541 STORE_FLOAT_DFORM_TEST(stfdu); 542 STORE_FLOAT_XFORM_TEST(stfdux); 543 STORE_FLOAT_DFORM_TEST(stfs); 544 STORE_FLOAT_XFORM_TEST(stfsx); 545 STORE_FLOAT_DFORM_TEST(stfsu); 546 STORE_FLOAT_XFORM_TEST(stfsux); 547 STORE_FLOAT_XFORM_TEST(stfiwx); 548 549 return rc; 550 } 551 552 int test_alignment_handler_fp_205(void) 553 { 554 int rc = 0; 555 556 SKIP_IF(!can_open_cifile()); 557 SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_05)); 558 559 printf("Floating point: 2.05\n"); 560 561 LOAD_FLOAT_DFORM_TEST(lfdp); 562 LOAD_FLOAT_XFORM_TEST(lfdpx); 563 LOAD_FLOAT_XFORM_TEST(lfiwax); 564 STORE_FLOAT_DFORM_TEST(stfdp); 565 STORE_FLOAT_XFORM_TEST(stfdpx); 566 567 return rc; 568 } 569 570 int test_alignment_handler_fp_206(void) 571 { 572 int rc = 0; 573 574 SKIP_IF(!can_open_cifile()); 575 SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06)); 576 577 printf("Floating point: 2.06\n"); 578 579 LOAD_FLOAT_XFORM_TEST(lfiwzx); 580 581 return rc; 582 } 583 584 585 int test_alignment_handler_fp_prefix(void) 586 { 587 int rc = 0; 588 589 SKIP_IF(!can_open_cifile()); 590 SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1)); 591 592 printf("Floating point: PREFIX\n"); 593 LOAD_FLOAT_DFORM_TEST(lfs); 594 LOAD_FLOAT_MLS_PREFIX_TEST(PLFS); 595 LOAD_FLOAT_MLS_PREFIX_TEST(PLFD); 596 STORE_FLOAT_MLS_PREFIX_TEST(PSTFS); 597 STORE_FLOAT_MLS_PREFIX_TEST(PSTFD); 598 return rc; 599 } 600 601 void usage(char *prog) 602 { 603 printf("Usage: %s [options] [path [offset]]\n", prog); 604 printf(" -d Enable debug error output\n"); 605 printf("\n"); 606 printf("This test requires a POWER8, POWER9 or POWER10 CPU "); 607 printf("and either a usable framebuffer at /dev/fb0 or "); 608 printf("the path to usable cache inhibited memory and optional "); 609 printf("offset to be provided\n"); 610 } 611 612 int main(int argc, char *argv[]) 613 { 614 615 struct sigaction sa; 616 int rc = 0; 617 int option = 0; 618 619 while ((option = getopt(argc, argv, "d")) != -1) { 620 switch (option) { 621 case 'd': 622 debug++; 623 break; 624 default: 625 usage(argv[0]); 626 exit(1); 627 } 628 } 629 argc -= optind; 630 argv += optind; 631 632 if (argc > 0) 633 cipath = argv[0]; 634 if (argc > 1) 635 cioffset = strtol(argv[1], 0, 0x10); 636 637 bufsize = getpagesize(); 638 639 sa.sa_sigaction = sighandler; 640 sigemptyset(&sa.sa_mask); 641 sa.sa_flags = SA_SIGINFO; 642 if (sigaction(SIGSEGV, &sa, NULL) == -1 643 || sigaction(SIGBUS, &sa, NULL) == -1 644 || sigaction(SIGILL, &sa, NULL) == -1) { 645 perror("sigaction"); 646 exit(1); 647 } 648 649 rc |= test_harness(test_alignment_handler_vsx_206, 650 "test_alignment_handler_vsx_206"); 651 rc |= test_harness(test_alignment_handler_vsx_207, 652 "test_alignment_handler_vsx_207"); 653 rc |= test_harness(test_alignment_handler_vsx_300, 654 "test_alignment_handler_vsx_300"); 655 rc |= test_harness(test_alignment_handler_vsx_prefix, 656 "test_alignment_handler_vsx_prefix"); 657 rc |= test_harness(test_alignment_handler_integer, 658 "test_alignment_handler_integer"); 659 rc |= test_harness(test_alignment_handler_integer_206, 660 "test_alignment_handler_integer_206"); 661 rc |= test_harness(test_alignment_handler_integer_prefix, 662 "test_alignment_handler_integer_prefix"); 663 rc |= test_harness(test_alignment_handler_vmx, 664 "test_alignment_handler_vmx"); 665 rc |= test_harness(test_alignment_handler_fp, 666 "test_alignment_handler_fp"); 667 rc |= test_harness(test_alignment_handler_fp_205, 668 "test_alignment_handler_fp_205"); 669 rc |= test_harness(test_alignment_handler_fp_206, 670 "test_alignment_handler_fp_206"); 671 rc |= test_harness(test_alignment_handler_fp_prefix, 672 "test_alignment_handler_fp_prefix"); 673 return rc; 674 } 675