1 /* $NetBSD: exec.c,v 1.65 2017/02/11 10:23:39 nonaka Exp $ */ 2 3 /* 4 * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * Copyright (c) 1982, 1986, 1990, 1993 31 * The Regents of the University of California. All rights reserved. 32 * 33 * Redistribution and use in source and binary forms, with or without 34 * modification, are permitted provided that the following conditions 35 * are met: 36 * 1. Redistributions of source code must retain the above copyright 37 * notice, this list of conditions and the following disclaimer. 38 * 2. Redistributions in binary form must reproduce the above copyright 39 * notice, this list of conditions and the following disclaimer in the 40 * documentation and/or other materials provided with the distribution. 41 * 3. Neither the name of the University nor the names of its contributors 42 * may be used to endorse or promote products derived from this software 43 * without specific prior written permission. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 46 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 47 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 48 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 49 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 50 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 51 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 53 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 54 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 55 * SUCH DAMAGE. 56 * 57 * @(#)boot.c 8.1 (Berkeley) 6/10/93 58 */ 59 60 /* 61 * Copyright (c) 1996 62 * Matthias Drochner. All rights reserved. 63 * Copyright (c) 1996 64 * Perry E. Metzger. All rights reserved. 65 * 66 * Redistribution and use in source and binary forms, with or without 67 * modification, are permitted provided that the following conditions 68 * are met: 69 * 1. Redistributions of source code must retain the above copyright 70 * notice, this list of conditions and the following disclaimer. 71 * 2. Redistributions in binary form must reproduce the above copyright 72 * notice, this list of conditions and the following disclaimer in the 73 * documentation and/or other materials provided with the distribution. 74 * 75 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 76 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 77 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 78 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 79 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 80 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 81 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 82 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 83 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 84 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 85 * SUCH DAMAGE. 86 * 87 * @(#)boot.c 8.1 (Berkeley) 6/10/93 88 */ 89 90 /* 91 * Starts a NetBSD ELF kernel. The low level startup is done in startprog.S. 92 * This is a special version of exec.c to support use of XMS. 93 */ 94 95 #include <sys/param.h> 96 #include <sys/reboot.h> 97 #include <sys/reboot.h> 98 99 #include <i386/multiboot.h> 100 101 #include <lib/libsa/stand.h> 102 #include <lib/libkern/libkern.h> 103 104 #include "loadfile.h" 105 #include "libi386.h" 106 #include "bootinfo.h" 107 #include "bootmod.h" 108 #include "vbe.h" 109 #ifdef SUPPORT_PS2 110 #include "biosmca.h" 111 #endif 112 #ifdef EFIBOOT 113 #include "efiboot.h" 114 #undef DEBUG /* XXX */ 115 #endif 116 117 #define BOOT_NARGS 6 118 119 #ifndef PAGE_SIZE 120 #define PAGE_SIZE 4096 121 #endif 122 123 #define MODULE_WARNING_SEC 5 124 125 extern struct btinfo_console btinfo_console; 126 127 boot_module_t *boot_modules; 128 bool boot_modules_enabled = true; 129 bool kernel_loaded; 130 131 typedef struct userconf_command { 132 char *uc_text; 133 size_t uc_len; 134 struct userconf_command *uc_next; 135 } userconf_command_t; 136 userconf_command_t *userconf_commands = NULL; 137 138 static struct btinfo_framebuffer btinfo_framebuffer; 139 140 static struct btinfo_modulelist *btinfo_modulelist; 141 static size_t btinfo_modulelist_size; 142 static uint32_t image_end; 143 static char module_base[64] = "/"; 144 static int howto; 145 146 static struct btinfo_userconfcommands *btinfo_userconfcommands = NULL; 147 static size_t btinfo_userconfcommands_size = 0; 148 149 static void module_init(const char *); 150 static void module_add_common(const char *, uint8_t); 151 152 static void userconf_init(void); 153 154 void 155 framebuffer_configure(struct btinfo_framebuffer *fb) 156 { 157 if (fb) 158 btinfo_framebuffer = *fb; 159 else { 160 btinfo_framebuffer.physaddr = 0; 161 btinfo_framebuffer.flags = 0; 162 } 163 } 164 165 void 166 module_add(char *name) 167 { 168 return module_add_common(name, BM_TYPE_KMOD); 169 } 170 171 void 172 splash_add(char *name) 173 { 174 return module_add_common(name, BM_TYPE_IMAGE); 175 } 176 177 void 178 rnd_add(char *name) 179 { 180 return module_add_common(name, BM_TYPE_RND); 181 } 182 183 void 184 fs_add(char *name) 185 { 186 return module_add_common(name, BM_TYPE_FS); 187 } 188 189 static void 190 module_add_common(const char *name, uint8_t type) 191 { 192 boot_module_t *bm, *bmp; 193 size_t len; 194 char *str; 195 196 while (*name == ' ' || *name == '\t') 197 ++name; 198 199 bm = alloc(sizeof(boot_module_t)); 200 len = strlen(name) + 1; 201 str = alloc(len); 202 if (bm == NULL || str == NULL) { 203 printf("couldn't allocate module\n"); 204 return; 205 } 206 memcpy(str, name, len); 207 bm->bm_path = str; 208 bm->bm_next = NULL; 209 bm->bm_type = type; 210 if (boot_modules == NULL) 211 boot_modules = bm; 212 else { 213 for (bmp = boot_modules; bmp->bm_next; 214 bmp = bmp->bm_next) 215 ; 216 bmp->bm_next = bm; 217 } 218 } 219 220 void 221 userconf_add(char *cmd) 222 { 223 userconf_command_t *uc; 224 size_t len; 225 char *text; 226 227 while (*cmd == ' ' || *cmd == '\t') 228 ++cmd; 229 230 uc = alloc(sizeof(*uc)); 231 if (uc == NULL) { 232 printf("couldn't allocate command\n"); 233 return; 234 } 235 236 len = strlen(cmd) + 1; 237 text = alloc(len); 238 if (text == NULL) { 239 dealloc(uc, sizeof(*uc)); 240 printf("couldn't allocate command\n"); 241 return; 242 } 243 memcpy(text, cmd, len); 244 245 uc->uc_text = text; 246 uc->uc_len = len; 247 uc->uc_next = NULL; 248 249 if (userconf_commands == NULL) 250 userconf_commands = uc; 251 else { 252 userconf_command_t *ucp; 253 for (ucp = userconf_commands; ucp->uc_next != NULL; 254 ucp = ucp->uc_next) 255 ; 256 ucp->uc_next = uc; 257 } 258 } 259 260 static int 261 common_load_kernel(const char *file, u_long *basemem, u_long *extmem, 262 physaddr_t loadaddr, int floppy, u_long marks[MARK_MAX]) 263 { 264 int fd; 265 #ifdef XMS 266 u_long xmsmem; 267 physaddr_t origaddr = loadaddr; 268 #endif 269 270 *extmem = getextmem(); 271 *basemem = getbasemem(); 272 273 #ifdef XMS 274 if ((getextmem1() == 0) && (xmsmem = checkxms())) { 275 u_long kernsize; 276 277 /* 278 * With "CONSERVATIVE_MEMDETECT", extmem is 0 because 279 * getextmem() is getextmem1(). Without, the "smart" 280 * methods could fail to report all memory as well. 281 * xmsmem is a few kB less than the actual size, but 282 * better than nothing. 283 */ 284 if (xmsmem > *extmem) 285 *extmem = xmsmem; 286 /* 287 * Get the size of the kernel 288 */ 289 marks[MARK_START] = loadaddr; 290 if ((fd = loadfile(file, marks, COUNT_KERNEL)) == -1) 291 return EIO; 292 close(fd); 293 294 kernsize = marks[MARK_END]; 295 kernsize = (kernsize + 1023) / 1024; 296 297 loadaddr = xmsalloc(kernsize); 298 if (!loadaddr) 299 return ENOMEM; 300 } 301 #endif 302 #ifdef EFIBOOT 303 { 304 EFI_STATUS status; 305 EFI_PHYSICAL_ADDRESS addr; 306 UINTN kernsize; 307 308 marks[MARK_START] = loadaddr; 309 if ((fd = loadfile(file, marks, COUNT_KERNEL)) == -1) 310 return EIO; 311 close(fd); 312 313 /* Allocate temporary arena. */ 314 addr = EFI_ALLOCATE_MAX_ADDRESS; 315 kernsize = marks[MARK_END] - loadaddr; 316 kernsize += 1 * 1024 * 1024; /* XXX: kernel size COUNT_KERNEL vs LOAD_KERNL (lacked some SYMTAB?) */ 317 kernsize = EFI_SIZE_TO_PAGES(kernsize); 318 status = uefi_call_wrapper(BS->AllocatePages, 4, 319 AllocateMaxAddress, EfiLoaderData, kernsize, &addr); 320 if (EFI_ERROR(status)) 321 return ENOMEM; 322 efi_loadaddr = loadaddr = addr; 323 324 memset(marks, 0, sizeof(marks[0]) * MARK_MAX); 325 } 326 #endif 327 marks[MARK_START] = loadaddr; 328 if ((fd = loadfile(file, marks, 329 LOAD_KERNEL & ~(floppy ? LOAD_BACKWARDS : 0))) == -1) 330 return EIO; 331 332 close(fd); 333 334 /* If the root fs type is unusual, load its module. */ 335 if (fsmod != NULL) 336 module_add_common(fsmod, BM_TYPE_KMOD); 337 338 /* 339 * Gather some information for the kernel. Do this after the 340 * "point of no return" to avoid memory leaks. 341 * (but before DOS might be trashed in the XMS case) 342 */ 343 #ifdef PASS_BIOSGEOM 344 bi_getbiosgeom(); 345 #endif 346 #ifdef PASS_MEMMAP 347 bi_getmemmap(); 348 #endif 349 350 #ifdef XMS 351 if (loadaddr != origaddr) { 352 /* 353 * We now have done our last DOS IO, so we may 354 * trash the OS. Copy the data from the temporary 355 * buffer to its real address. 356 */ 357 marks[MARK_START] -= loadaddr; 358 marks[MARK_END] -= loadaddr; 359 marks[MARK_SYM] -= loadaddr; 360 marks[MARK_END] -= loadaddr; 361 ppbcopy(loadaddr, origaddr, marks[MARK_END]); 362 } 363 #endif 364 #ifdef EFIBOOT 365 marks[MARK_START] -= loadaddr; 366 marks[MARK_ENTRY] -= loadaddr; 367 marks[MARK_DATA] -= loadaddr; 368 /* MARK_NSYM */ 369 marks[MARK_SYM] -= loadaddr; 370 marks[MARK_END] -= loadaddr; 371 /* Copy the kernel to original load address later. */ 372 #endif 373 marks[MARK_END] = (((u_long) marks[MARK_END] + sizeof(int) - 1)) & 374 (-sizeof(int)); 375 image_end = marks[MARK_END]; 376 kernel_loaded = true; 377 378 return 0; 379 } 380 381 int 382 exec_netbsd(const char *file, physaddr_t loadaddr, int boothowto, int floppy, 383 void (*callback)(void)) 384 { 385 uint32_t boot_argv[BOOT_NARGS]; 386 u_long marks[MARK_MAX]; 387 struct btinfo_symtab btinfo_symtab; 388 u_long extmem; 389 u_long basemem; 390 int error; 391 #ifdef EFIBOOT 392 int i; 393 #endif 394 395 #ifdef DEBUG 396 printf("exec: file=%s loadaddr=0x%lx\n", file ? file : "NULL", 397 loadaddr); 398 #endif 399 400 BI_ALLOC(BTINFO_MAX); 401 402 BI_ADD(&btinfo_console, BTINFO_CONSOLE, sizeof(struct btinfo_console)); 403 404 howto = boothowto; 405 406 memset(marks, 0, sizeof(marks)); 407 408 error = common_load_kernel(file, &basemem, &extmem, loadaddr, floppy, 409 marks); 410 if (error) { 411 errno = error; 412 goto out; 413 } 414 415 boot_argv[0] = boothowto; 416 boot_argv[1] = 0; 417 boot_argv[2] = vtophys(bootinfo); /* old cyl offset */ 418 boot_argv[3] = marks[MARK_END]; 419 boot_argv[4] = extmem; 420 boot_argv[5] = basemem; 421 422 /* pull in any modules if necessary */ 423 if (boot_modules_enabled) { 424 module_init(file); 425 if (btinfo_modulelist) { 426 BI_ADD(btinfo_modulelist, BTINFO_MODULELIST, 427 btinfo_modulelist_size); 428 } 429 } 430 431 userconf_init(); 432 if (btinfo_userconfcommands != NULL) 433 BI_ADD(btinfo_userconfcommands, BTINFO_USERCONFCOMMANDS, 434 btinfo_userconfcommands_size); 435 436 #ifdef DEBUG 437 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 438 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 439 #endif 440 441 btinfo_symtab.nsym = marks[MARK_NSYM]; 442 btinfo_symtab.ssym = marks[MARK_SYM]; 443 btinfo_symtab.esym = marks[MARK_END]; 444 BI_ADD(&btinfo_symtab, BTINFO_SYMTAB, sizeof(struct btinfo_symtab)); 445 446 /* set new video mode if necessary */ 447 vbe_commit(); 448 BI_ADD(&btinfo_framebuffer, BTINFO_FRAMEBUFFER, 449 sizeof(struct btinfo_framebuffer)); 450 451 if (callback != NULL) 452 (*callback)(); 453 #ifdef EFIBOOT 454 /* Copy bootinfo to safe arena. */ 455 for (i = 0; i < bootinfo->nentries; i++) { 456 struct btinfo_common *bi = (void *)(u_long)bootinfo->entry[i]; 457 char *p = alloc(bi->len); 458 memcpy(p, bi, bi->len); 459 bootinfo->entry[i] = vtophys(p); 460 } 461 462 efi_kernel_start = marks[MARK_START]; 463 efi_kernel_size = marks[MARK_END] - efi_kernel_start; 464 #endif 465 startprog(marks[MARK_ENTRY], BOOT_NARGS, boot_argv, 466 x86_trunc_page(basemem * 1024)); 467 panic("exec returned"); 468 469 out: 470 BI_FREE(); 471 bootinfo = NULL; 472 return -1; 473 } 474 475 static void 476 extract_device(const char *path, char *buf, size_t buflen) 477 { 478 size_t i; 479 480 if (strchr(path, ':') != NULL) { 481 for (i = 0; i < buflen - 2 && path[i] != ':'; i++) 482 buf[i] = path[i]; 483 buf[i++] = ':'; 484 buf[i] = '\0'; 485 } else 486 buf[0] = '\0'; 487 } 488 489 static const char * 490 module_path(boot_module_t *bm, const char *kdev) 491 { 492 static char buf[256]; 493 char name_buf[256], dev_buf[64]; 494 const char *name, *name2, *p; 495 496 name = bm->bm_path; 497 for (name2 = name; *name2; ++name2) { 498 if (*name2 == ' ' || *name2 == '\t') { 499 strlcpy(name_buf, name, sizeof(name_buf)); 500 if ((uintptr_t)name2 - (uintptr_t)name < sizeof(name_buf)) 501 name_buf[name2 - name] = '\0'; 502 name = name_buf; 503 break; 504 } 505 } 506 if ((p = strchr(name, ':')) != NULL) { 507 /* device specified, use it */ 508 if (p[1] == '/') 509 snprintf(buf, sizeof(buf), "%s", name); 510 else { 511 p++; 512 extract_device(name, dev_buf, sizeof(dev_buf)); 513 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 514 dev_buf, module_base, p, p); 515 } 516 } else { 517 /* device not specified; load from kernel device if known */ 518 if (name[0] == '/') 519 snprintf(buf, sizeof(buf), "%s%s", kdev, name); 520 else 521 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 522 kdev, module_base, name, name); 523 } 524 525 return buf; 526 } 527 528 static int 529 module_open(boot_module_t *bm, int mode, const char *kdev, bool doload) 530 { 531 int fd; 532 const char *path; 533 534 /* check the expanded path first */ 535 path = module_path(bm, kdev); 536 fd = open(path, mode); 537 if (fd != -1) { 538 if ((howto & AB_SILENT) == 0 && doload) 539 printf("Loading %s ", path); 540 } else { 541 /* now attempt the raw path provided */ 542 fd = open(bm->bm_path, mode); 543 if (fd != -1 && (howto & AB_SILENT) == 0 && doload) 544 printf("Loading %s ", bm->bm_path); 545 } 546 if (!doload && fd == -1) { 547 printf("WARNING: couldn't open %s", bm->bm_path); 548 if (strcmp(bm->bm_path, path) != 0) 549 printf(" (%s)", path); 550 printf("\n"); 551 } 552 return fd; 553 } 554 555 static void 556 module_init(const char *kernel_path) 557 { 558 struct bi_modulelist_entry *bi; 559 struct stat st; 560 const char *machine; 561 char kdev[64]; 562 char *buf; 563 boot_module_t *bm; 564 ssize_t len; 565 off_t off; 566 int err, fd, nfail = 0; 567 568 extract_device(kernel_path, kdev, sizeof(kdev)); 569 570 switch (netbsd_elf_class) { 571 case ELFCLASS32: 572 machine = "i386"; 573 break; 574 case ELFCLASS64: 575 machine = "amd64"; 576 break; 577 default: 578 machine = "generic"; 579 break; 580 } 581 if (netbsd_version / 1000000 % 100 == 99) { 582 /* -current */ 583 snprintf(module_base, sizeof(module_base), 584 "/stand/%s/%d.%d.%d/modules", machine, 585 netbsd_version / 100000000, 586 netbsd_version / 1000000 % 100, 587 netbsd_version / 100 % 100); 588 } else if (netbsd_version != 0) { 589 /* release */ 590 snprintf(module_base, sizeof(module_base), 591 "/stand/%s/%d.%d/modules", machine, 592 netbsd_version / 100000000, 593 netbsd_version / 1000000 % 100); 594 } 595 596 /* First, see which modules are valid and calculate btinfo size */ 597 len = sizeof(struct btinfo_modulelist); 598 for (bm = boot_modules; bm; bm = bm->bm_next) { 599 fd = module_open(bm, 0, kdev, false); 600 if (fd == -1) { 601 bm->bm_len = -1; 602 ++nfail; 603 continue; 604 } 605 err = fstat(fd, &st); 606 if (err == -1 || st.st_size == -1) { 607 printf("WARNING: couldn't stat %s\n", bm->bm_path); 608 close(fd); 609 bm->bm_len = -1; 610 ++nfail; 611 continue; 612 } 613 bm->bm_len = st.st_size; 614 close(fd); 615 len += sizeof(struct bi_modulelist_entry); 616 } 617 618 /* Allocate the module list */ 619 btinfo_modulelist = alloc(len); 620 if (btinfo_modulelist == NULL) { 621 printf("WARNING: couldn't allocate module list\n"); 622 wait_sec(MODULE_WARNING_SEC); 623 return; 624 } 625 memset(btinfo_modulelist, 0, len); 626 btinfo_modulelist_size = len; 627 628 /* Fill in btinfo structure */ 629 buf = (char *)btinfo_modulelist; 630 btinfo_modulelist->num = 0; 631 off = sizeof(struct btinfo_modulelist); 632 633 for (bm = boot_modules; bm; bm = bm->bm_next) { 634 if (bm->bm_len == -1) 635 continue; 636 fd = module_open(bm, 0, kdev, true); 637 if (fd == -1) 638 continue; 639 image_end = (image_end + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1); 640 len = pread(fd, (void *)(uintptr_t)image_end, SSIZE_MAX); 641 if (len < bm->bm_len) { 642 if ((howto & AB_SILENT) != 0) 643 printf("Loading %s ", bm->bm_path); 644 printf(" FAILED\n"); 645 } else { 646 btinfo_modulelist->num++; 647 bi = (struct bi_modulelist_entry *)(buf + off); 648 off += sizeof(struct bi_modulelist_entry); 649 strncpy(bi->path, bm->bm_path, sizeof(bi->path) - 1); 650 bi->base = image_end; 651 bi->len = len; 652 switch (bm->bm_type) { 653 case BM_TYPE_KMOD: 654 bi->type = BI_MODULE_ELF; 655 break; 656 case BM_TYPE_IMAGE: 657 bi->type = BI_MODULE_IMAGE; 658 break; 659 case BM_TYPE_FS: 660 bi->type = BI_MODULE_FS; 661 break; 662 case BM_TYPE_RND: 663 default: 664 /* safest -- rnd checks the sha1 */ 665 bi->type = BI_MODULE_RND; 666 break; 667 } 668 if ((howto & AB_SILENT) == 0) 669 printf(" \n"); 670 } 671 if (len > 0) 672 image_end += len; 673 close(fd); 674 } 675 btinfo_modulelist->endpa = image_end; 676 677 if (nfail > 0) { 678 printf("WARNING: %d module%s failed to load\n", 679 nfail, nfail == 1 ? "" : "s"); 680 #if notyet 681 wait_sec(MODULE_WARNING_SEC); 682 #endif 683 } 684 } 685 686 static void 687 userconf_init(void) 688 { 689 size_t count, len; 690 userconf_command_t *uc; 691 char *buf; 692 off_t off; 693 694 /* Calculate the userconf commands list size */ 695 count = 0; 696 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) 697 count++; 698 len = sizeof(*btinfo_userconfcommands) + 699 count * sizeof(struct bi_userconfcommand); 700 701 /* Allocate the userconf commands list */ 702 btinfo_userconfcommands = alloc(len); 703 if (btinfo_userconfcommands == NULL) { 704 printf("WARNING: couldn't allocate userconf commands list\n"); 705 return; 706 } 707 memset(btinfo_userconfcommands, 0, len); 708 btinfo_userconfcommands_size = len; 709 710 /* Fill in btinfo structure */ 711 buf = (char *)btinfo_userconfcommands; 712 off = sizeof(*btinfo_userconfcommands); 713 btinfo_userconfcommands->num = 0; 714 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) { 715 struct bi_userconfcommand *bi; 716 bi = (struct bi_userconfcommand *)(buf + off); 717 strncpy(bi->text, uc->uc_text, sizeof(bi->text) - 1); 718 719 off += sizeof(*bi); 720 btinfo_userconfcommands->num++; 721 } 722 } 723 724 int 725 exec_multiboot(const char *file, char *args) 726 { 727 struct multiboot_info *mbi; 728 struct multiboot_module *mbm; 729 struct bi_modulelist_entry *bim; 730 int i, len; 731 u_long marks[MARK_MAX]; 732 u_long extmem; 733 u_long basemem; 734 char *cmdline; 735 736 mbi = alloc(sizeof(struct multiboot_info)); 737 mbi->mi_flags = MULTIBOOT_INFO_HAS_MEMORY; 738 739 if (common_load_kernel(file, &basemem, &extmem, 0, 0, marks)) 740 goto out; 741 742 mbi->mi_mem_upper = extmem; 743 mbi->mi_mem_lower = basemem; 744 745 if (args) { 746 mbi->mi_flags |= MULTIBOOT_INFO_HAS_CMDLINE; 747 len = strlen(file) + 1 + strlen(args) + 1; 748 cmdline = alloc(len); 749 snprintf(cmdline, len, "%s %s", file, args); 750 mbi->mi_cmdline = (char *) vtophys(cmdline); 751 } 752 753 /* pull in any modules if necessary */ 754 if (boot_modules_enabled) { 755 module_init(file); 756 if (btinfo_modulelist) { 757 mbm = alloc(sizeof(struct multiboot_module) * 758 btinfo_modulelist->num); 759 760 bim = (struct bi_modulelist_entry *) 761 (((char *) btinfo_modulelist) + 762 sizeof(struct btinfo_modulelist)); 763 for (i = 0; i < btinfo_modulelist->num; i++) { 764 mbm[i].mmo_start = bim->base; 765 mbm[i].mmo_end = bim->base + bim->len; 766 mbm[i].mmo_string = (char *)vtophys(bim->path); 767 mbm[i].mmo_reserved = 0; 768 bim++; 769 } 770 mbi->mi_flags |= MULTIBOOT_INFO_HAS_MODS; 771 mbi->mi_mods_count = btinfo_modulelist->num; 772 mbi->mi_mods_addr = vtophys(mbm); 773 } 774 } 775 776 #ifdef DEBUG 777 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 778 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 779 #endif 780 781 #if 0 782 if (btinfo_symtab.nsym) { 783 mbi->mi_flags |= MULTIBOOT_INFO_HAS_ELF_SYMS; 784 mbi->mi_elfshdr_addr = marks[MARK_SYM]; 785 btinfo_symtab.nsym = marks[MARK_NSYM]; 786 btinfo_symtab.ssym = marks[MARK_SYM]; 787 btinfo_symtab.esym = marks[MARK_END]; 788 #endif 789 790 multiboot(marks[MARK_ENTRY], vtophys(mbi), 791 x86_trunc_page(mbi->mi_mem_lower * 1024)); 792 panic("exec returned"); 793 794 out: 795 dealloc(mbi, 0); 796 return -1; 797 } 798 799 void 800 x86_progress(const char *fmt, ...) 801 { 802 va_list ap; 803 804 if ((howto & AB_SILENT) != 0) 805 return; 806 va_start(ap, fmt); 807 vprintf(fmt, ap); 808 va_end(ap); 809 } 810