1 /* $NetBSD: exec.c,v 1.63 2017/01/24 11:09:14 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 static u_long efi_loadaddr; 116 #endif 117 118 #define BOOT_NARGS 6 119 120 #ifndef PAGE_SIZE 121 #define PAGE_SIZE 4096 122 #endif 123 124 #define MODULE_WARNING_SEC 5 125 126 extern struct btinfo_console btinfo_console; 127 128 boot_module_t *boot_modules; 129 bool boot_modules_enabled = true; 130 bool kernel_loaded; 131 132 typedef struct userconf_command { 133 char *uc_text; 134 size_t uc_len; 135 struct userconf_command *uc_next; 136 } userconf_command_t; 137 userconf_command_t *userconf_commands = NULL; 138 139 static struct btinfo_framebuffer btinfo_framebuffer; 140 141 static struct btinfo_modulelist *btinfo_modulelist; 142 static size_t btinfo_modulelist_size; 143 static uint32_t image_end; 144 static char module_base[64] = "/"; 145 static int howto; 146 147 static struct btinfo_userconfcommands *btinfo_userconfcommands = NULL; 148 static size_t btinfo_userconfcommands_size = 0; 149 150 static void module_init(const char *); 151 static void module_add_common(const char *, uint8_t); 152 153 static void userconf_init(void); 154 155 void 156 framebuffer_configure(struct btinfo_framebuffer *fb) 157 { 158 if (fb) 159 btinfo_framebuffer = *fb; 160 else { 161 btinfo_framebuffer.physaddr = 0; 162 btinfo_framebuffer.flags = 0; 163 } 164 } 165 166 void 167 module_add(char *name) 168 { 169 return module_add_common(name, BM_TYPE_KMOD); 170 } 171 172 void 173 splash_add(char *name) 174 { 175 return module_add_common(name, BM_TYPE_IMAGE); 176 } 177 178 void 179 rnd_add(char *name) 180 { 181 return module_add_common(name, BM_TYPE_RND); 182 } 183 184 void 185 fs_add(char *name) 186 { 187 return module_add_common(name, BM_TYPE_FS); 188 } 189 190 static void 191 module_add_common(const char *name, uint8_t type) 192 { 193 boot_module_t *bm, *bmp; 194 size_t len; 195 char *str; 196 197 while (*name == ' ' || *name == '\t') 198 ++name; 199 200 bm = alloc(sizeof(boot_module_t)); 201 len = strlen(name) + 1; 202 str = alloc(len); 203 if (bm == NULL || str == NULL) { 204 printf("couldn't allocate module\n"); 205 return; 206 } 207 memcpy(str, name, len); 208 bm->bm_path = str; 209 bm->bm_next = NULL; 210 bm->bm_type = type; 211 if (boot_modules == NULL) 212 boot_modules = bm; 213 else { 214 for (bmp = boot_modules; bmp->bm_next; 215 bmp = bmp->bm_next) 216 ; 217 bmp->bm_next = bm; 218 } 219 } 220 221 void 222 userconf_add(char *cmd) 223 { 224 userconf_command_t *uc; 225 size_t len; 226 char *text; 227 228 while (*cmd == ' ' || *cmd == '\t') 229 ++cmd; 230 231 uc = alloc(sizeof(*uc)); 232 if (uc == NULL) { 233 printf("couldn't allocate command\n"); 234 return; 235 } 236 237 len = strlen(cmd) + 1; 238 text = alloc(len); 239 if (text == NULL) { 240 dealloc(uc, sizeof(*uc)); 241 printf("couldn't allocate command\n"); 242 return; 243 } 244 memcpy(text, cmd, len); 245 246 uc->uc_text = text; 247 uc->uc_len = len; 248 uc->uc_next = NULL; 249 250 if (userconf_commands == NULL) 251 userconf_commands = uc; 252 else { 253 userconf_command_t *ucp; 254 for (ucp = userconf_commands; ucp->uc_next != NULL; 255 ucp = ucp->uc_next) 256 ; 257 ucp->uc_next = uc; 258 } 259 } 260 261 static int 262 common_load_kernel(const char *file, u_long *basemem, u_long *extmem, 263 physaddr_t loadaddr, int floppy, u_long marks[MARK_MAX]) 264 { 265 int fd; 266 #ifdef XMS 267 u_long xmsmem; 268 physaddr_t origaddr = loadaddr; 269 #endif 270 271 *extmem = getextmem(); 272 *basemem = getbasemem(); 273 274 #ifdef XMS 275 if ((getextmem1() == 0) && (xmsmem = checkxms())) { 276 u_long kernsize; 277 278 /* 279 * With "CONSERVATIVE_MEMDETECT", extmem is 0 because 280 * getextmem() is getextmem1(). Without, the "smart" 281 * methods could fail to report all memory as well. 282 * xmsmem is a few kB less than the actual size, but 283 * better than nothing. 284 */ 285 if (xmsmem > *extmem) 286 *extmem = xmsmem; 287 /* 288 * Get the size of the kernel 289 */ 290 marks[MARK_START] = loadaddr; 291 if ((fd = loadfile(file, marks, COUNT_KERNEL)) == -1) 292 return EIO; 293 close(fd); 294 295 kernsize = marks[MARK_END]; 296 kernsize = (kernsize + 1023) / 1024; 297 298 loadaddr = xmsalloc(kernsize); 299 if (!loadaddr) 300 return ENOMEM; 301 } 302 #endif 303 #ifdef EFIBOOT 304 { 305 EFI_STATUS status; 306 EFI_PHYSICAL_ADDRESS addr; 307 UINTN kernsize; 308 309 marks[MARK_START] = loadaddr; 310 if ((fd = loadfile(file, marks, COUNT_KERNEL)) == -1) 311 return EIO; 312 close(fd); 313 314 /* Allocate temporary arena. */ 315 addr = EFI_ALLOCATE_MAX_ADDRESS; 316 kernsize = marks[MARK_END] - loadaddr; 317 kernsize += 1 * 1024 * 1024; /* XXX: kernel size COUNT_KERNEL vs LOAD_KERNL (lacked some SYMTAB?) */ 318 kernsize = EFI_SIZE_TO_PAGES(kernsize); 319 status = uefi_call_wrapper(BS->AllocatePages, 4, 320 AllocateMaxAddress, EfiLoaderData, kernsize, &addr); 321 if (EFI_ERROR(status)) 322 return ENOMEM; 323 efi_loadaddr = loadaddr = addr; 324 325 memset(marks, 0, sizeof(marks[0]) * MARK_MAX); 326 } 327 #endif 328 marks[MARK_START] = loadaddr; 329 if ((fd = loadfile(file, marks, 330 LOAD_KERNEL & ~(floppy ? LOAD_BACKWARDS : 0))) == -1) 331 return EIO; 332 333 close(fd); 334 335 /* If the root fs type is unusual, load its module. */ 336 if (fsmod != NULL) 337 module_add_common(fsmod, BM_TYPE_KMOD); 338 339 /* 340 * Gather some information for the kernel. Do this after the 341 * "point of no return" to avoid memory leaks. 342 * (but before DOS might be trashed in the XMS case) 343 */ 344 #ifdef PASS_BIOSGEOM 345 bi_getbiosgeom(); 346 #endif 347 #ifdef PASS_MEMMAP 348 bi_getmemmap(); 349 #endif 350 351 #ifdef XMS 352 if (loadaddr != origaddr) { 353 /* 354 * We now have done our last DOS IO, so we may 355 * trash the OS. Copy the data from the temporary 356 * buffer to its real address. 357 */ 358 marks[MARK_START] -= loadaddr; 359 marks[MARK_END] -= loadaddr; 360 marks[MARK_SYM] -= loadaddr; 361 marks[MARK_END] -= loadaddr; 362 ppbcopy(loadaddr, origaddr, marks[MARK_END]); 363 } 364 #endif 365 #ifdef EFIBOOT 366 marks[MARK_START] -= loadaddr; 367 marks[MARK_ENTRY] -= loadaddr; 368 marks[MARK_DATA] -= loadaddr; 369 /* MARK_NSYM */ 370 marks[MARK_SYM] -= loadaddr; 371 marks[MARK_END] -= loadaddr; 372 /* Copy the kernel to original load address later. */ 373 #endif 374 marks[MARK_END] = (((u_long) marks[MARK_END] + sizeof(int) - 1)) & 375 (-sizeof(int)); 376 image_end = marks[MARK_END]; 377 kernel_loaded = true; 378 379 return 0; 380 } 381 382 int 383 exec_netbsd(const char *file, physaddr_t loadaddr, int boothowto, int floppy, 384 void (*callback)(void)) 385 { 386 uint32_t boot_argv[BOOT_NARGS]; 387 u_long marks[MARK_MAX]; 388 struct btinfo_symtab btinfo_symtab; 389 u_long extmem; 390 u_long basemem; 391 int error; 392 393 #ifdef DEBUG 394 printf("exec: file=%s loadaddr=0x%lx\n", file ? file : "NULL", 395 loadaddr); 396 #endif 397 398 BI_ALLOC(BTINFO_MAX); 399 400 BI_ADD(&btinfo_console, BTINFO_CONSOLE, sizeof(struct btinfo_console)); 401 402 howto = boothowto; 403 404 memset(marks, 0, sizeof(marks)); 405 406 error = common_load_kernel(file, &basemem, &extmem, loadaddr, floppy, 407 marks); 408 if (error) { 409 errno = error; 410 goto out; 411 } 412 413 boot_argv[0] = boothowto; 414 boot_argv[1] = 0; 415 boot_argv[2] = vtophys(bootinfo); /* old cyl offset */ 416 boot_argv[3] = marks[MARK_END]; 417 boot_argv[4] = extmem; 418 boot_argv[5] = basemem; 419 420 /* pull in any modules if necessary */ 421 if (boot_modules_enabled) { 422 module_init(file); 423 if (btinfo_modulelist) { 424 BI_ADD(btinfo_modulelist, BTINFO_MODULELIST, 425 btinfo_modulelist_size); 426 } 427 } 428 429 userconf_init(); 430 if (btinfo_userconfcommands != NULL) 431 BI_ADD(btinfo_userconfcommands, BTINFO_USERCONFCOMMANDS, 432 btinfo_userconfcommands_size); 433 434 #ifdef DEBUG 435 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 436 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 437 #endif 438 439 btinfo_symtab.nsym = marks[MARK_NSYM]; 440 btinfo_symtab.ssym = marks[MARK_SYM]; 441 btinfo_symtab.esym = marks[MARK_END]; 442 BI_ADD(&btinfo_symtab, BTINFO_SYMTAB, sizeof(struct btinfo_symtab)); 443 444 /* set new video mode if necessary */ 445 vbe_commit(); 446 BI_ADD(&btinfo_framebuffer, BTINFO_FRAMEBUFFER, 447 sizeof(struct btinfo_framebuffer)); 448 449 if (callback != NULL) 450 (*callback)(); 451 #ifdef EFIBOOT 452 /* Copy the kernel to original load address. */ 453 memmove((void *)marks[MARK_START], 454 (void *)(efi_loadaddr + marks[MARK_START]), 455 marks[MARK_END] - marks[MARK_START]); 456 #endif 457 startprog(marks[MARK_ENTRY], BOOT_NARGS, boot_argv, 458 x86_trunc_page(basemem * 1024)); 459 panic("exec returned"); 460 461 out: 462 BI_FREE(); 463 bootinfo = NULL; 464 return -1; 465 } 466 467 static void 468 extract_device(const char *path, char *buf, size_t buflen) 469 { 470 size_t i; 471 472 if (strchr(path, ':') != NULL) { 473 for (i = 0; i < buflen - 2 && path[i] != ':'; i++) 474 buf[i] = path[i]; 475 buf[i++] = ':'; 476 buf[i] = '\0'; 477 } else 478 buf[0] = '\0'; 479 } 480 481 static const char * 482 module_path(boot_module_t *bm, const char *kdev) 483 { 484 static char buf[256]; 485 char name_buf[256], dev_buf[64]; 486 const char *name, *name2, *p; 487 488 name = bm->bm_path; 489 for (name2 = name; *name2; ++name2) { 490 if (*name2 == ' ' || *name2 == '\t') { 491 strlcpy(name_buf, name, sizeof(name_buf)); 492 if ((uintptr_t)name2 - (uintptr_t)name < sizeof(name_buf)) 493 name_buf[name2 - name] = '\0'; 494 name = name_buf; 495 break; 496 } 497 } 498 if ((p = strchr(name, ':')) != NULL) { 499 /* device specified, use it */ 500 if (p[1] == '/') 501 snprintf(buf, sizeof(buf), "%s", name); 502 else { 503 p++; 504 extract_device(name, dev_buf, sizeof(dev_buf)); 505 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 506 dev_buf, module_base, p, p); 507 } 508 } else { 509 /* device not specified; load from kernel device if known */ 510 if (name[0] == '/') 511 snprintf(buf, sizeof(buf), "%s%s", kdev, name); 512 else 513 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 514 kdev, module_base, name, name); 515 } 516 517 return buf; 518 } 519 520 static int 521 module_open(boot_module_t *bm, int mode, const char *kdev, bool doload) 522 { 523 int fd; 524 const char *path; 525 526 /* check the expanded path first */ 527 path = module_path(bm, kdev); 528 fd = open(path, mode); 529 if (fd != -1) { 530 if ((howto & AB_SILENT) == 0 && doload) 531 printf("Loading %s ", path); 532 } else { 533 /* now attempt the raw path provided */ 534 fd = open(bm->bm_path, mode); 535 if (fd != -1 && (howto & AB_SILENT) == 0 && doload) 536 printf("Loading %s ", bm->bm_path); 537 } 538 if (!doload && fd == -1) { 539 printf("WARNING: couldn't open %s", bm->bm_path); 540 if (strcmp(bm->bm_path, path) != 0) 541 printf(" (%s)", path); 542 printf("\n"); 543 } 544 return fd; 545 } 546 547 static void 548 module_init(const char *kernel_path) 549 { 550 struct bi_modulelist_entry *bi; 551 struct stat st; 552 const char *machine; 553 char kdev[64]; 554 char *buf; 555 boot_module_t *bm; 556 ssize_t len; 557 off_t off; 558 int err, fd, nfail = 0; 559 560 extract_device(kernel_path, kdev, sizeof(kdev)); 561 562 switch (netbsd_elf_class) { 563 case ELFCLASS32: 564 machine = "i386"; 565 break; 566 case ELFCLASS64: 567 machine = "amd64"; 568 break; 569 default: 570 machine = "generic"; 571 break; 572 } 573 if (netbsd_version / 1000000 % 100 == 99) { 574 /* -current */ 575 snprintf(module_base, sizeof(module_base), 576 "/stand/%s/%d.%d.%d/modules", machine, 577 netbsd_version / 100000000, 578 netbsd_version / 1000000 % 100, 579 netbsd_version / 100 % 100); 580 } else if (netbsd_version != 0) { 581 /* release */ 582 snprintf(module_base, sizeof(module_base), 583 "/stand/%s/%d.%d/modules", machine, 584 netbsd_version / 100000000, 585 netbsd_version / 1000000 % 100); 586 } 587 588 /* First, see which modules are valid and calculate btinfo size */ 589 len = sizeof(struct btinfo_modulelist); 590 for (bm = boot_modules; bm; bm = bm->bm_next) { 591 fd = module_open(bm, 0, kdev, false); 592 if (fd == -1) { 593 bm->bm_len = -1; 594 ++nfail; 595 continue; 596 } 597 err = fstat(fd, &st); 598 if (err == -1 || st.st_size == -1) { 599 printf("WARNING: couldn't stat %s\n", bm->bm_path); 600 close(fd); 601 bm->bm_len = -1; 602 ++nfail; 603 continue; 604 } 605 bm->bm_len = st.st_size; 606 close(fd); 607 len += sizeof(struct bi_modulelist_entry); 608 } 609 610 /* Allocate the module list */ 611 btinfo_modulelist = alloc(len); 612 if (btinfo_modulelist == NULL) { 613 printf("WARNING: couldn't allocate module list\n"); 614 wait_sec(MODULE_WARNING_SEC); 615 return; 616 } 617 memset(btinfo_modulelist, 0, len); 618 btinfo_modulelist_size = len; 619 620 /* Fill in btinfo structure */ 621 buf = (char *)btinfo_modulelist; 622 btinfo_modulelist->num = 0; 623 off = sizeof(struct btinfo_modulelist); 624 625 for (bm = boot_modules; bm; bm = bm->bm_next) { 626 if (bm->bm_len == -1) 627 continue; 628 fd = module_open(bm, 0, kdev, true); 629 if (fd == -1) 630 continue; 631 image_end = (image_end + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1); 632 len = pread(fd, (void *)(uintptr_t)image_end, SSIZE_MAX); 633 if (len < bm->bm_len) { 634 if ((howto & AB_SILENT) != 0) 635 printf("Loading %s ", bm->bm_path); 636 printf(" FAILED\n"); 637 } else { 638 btinfo_modulelist->num++; 639 bi = (struct bi_modulelist_entry *)(buf + off); 640 off += sizeof(struct bi_modulelist_entry); 641 strncpy(bi->path, bm->bm_path, sizeof(bi->path) - 1); 642 bi->base = image_end; 643 bi->len = len; 644 switch (bm->bm_type) { 645 case BM_TYPE_KMOD: 646 bi->type = BI_MODULE_ELF; 647 break; 648 case BM_TYPE_IMAGE: 649 bi->type = BI_MODULE_IMAGE; 650 break; 651 case BM_TYPE_FS: 652 bi->type = BI_MODULE_FS; 653 break; 654 case BM_TYPE_RND: 655 default: 656 /* safest -- rnd checks the sha1 */ 657 bi->type = BI_MODULE_RND; 658 break; 659 } 660 if ((howto & AB_SILENT) == 0) 661 printf(" \n"); 662 } 663 if (len > 0) 664 image_end += len; 665 close(fd); 666 } 667 btinfo_modulelist->endpa = image_end; 668 669 if (nfail > 0) { 670 printf("WARNING: %d module%s failed to load\n", 671 nfail, nfail == 1 ? "" : "s"); 672 #if notyet 673 wait_sec(MODULE_WARNING_SEC); 674 #endif 675 } 676 } 677 678 static void 679 userconf_init(void) 680 { 681 size_t count, len; 682 userconf_command_t *uc; 683 char *buf; 684 off_t off; 685 686 /* Calculate the userconf commands list size */ 687 count = 0; 688 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) 689 count++; 690 len = sizeof(*btinfo_userconfcommands) + 691 count * sizeof(struct bi_userconfcommand); 692 693 /* Allocate the userconf commands list */ 694 btinfo_userconfcommands = alloc(len); 695 if (btinfo_userconfcommands == NULL) { 696 printf("WARNING: couldn't allocate userconf commands list\n"); 697 return; 698 } 699 memset(btinfo_userconfcommands, 0, len); 700 btinfo_userconfcommands_size = len; 701 702 /* Fill in btinfo structure */ 703 buf = (char *)btinfo_userconfcommands; 704 off = sizeof(*btinfo_userconfcommands); 705 btinfo_userconfcommands->num = 0; 706 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) { 707 struct bi_userconfcommand *bi; 708 bi = (struct bi_userconfcommand *)(buf + off); 709 strncpy(bi->text, uc->uc_text, sizeof(bi->text) - 1); 710 711 off += sizeof(*bi); 712 btinfo_userconfcommands->num++; 713 } 714 } 715 716 int 717 exec_multiboot(const char *file, char *args) 718 { 719 struct multiboot_info *mbi; 720 struct multiboot_module *mbm; 721 struct bi_modulelist_entry *bim; 722 int i, len; 723 u_long marks[MARK_MAX]; 724 u_long extmem; 725 u_long basemem; 726 char *cmdline; 727 728 mbi = alloc(sizeof(struct multiboot_info)); 729 mbi->mi_flags = MULTIBOOT_INFO_HAS_MEMORY; 730 731 if (common_load_kernel(file, &basemem, &extmem, 0, 0, marks)) 732 goto out; 733 734 mbi->mi_mem_upper = extmem; 735 mbi->mi_mem_lower = basemem; 736 737 if (args) { 738 mbi->mi_flags |= MULTIBOOT_INFO_HAS_CMDLINE; 739 len = strlen(file) + 1 + strlen(args) + 1; 740 cmdline = alloc(len); 741 snprintf(cmdline, len, "%s %s", file, args); 742 mbi->mi_cmdline = (char *) vtophys(cmdline); 743 } 744 745 /* pull in any modules if necessary */ 746 if (boot_modules_enabled) { 747 module_init(file); 748 if (btinfo_modulelist) { 749 mbm = alloc(sizeof(struct multiboot_module) * 750 btinfo_modulelist->num); 751 752 bim = (struct bi_modulelist_entry *) 753 (((char *) btinfo_modulelist) + 754 sizeof(struct btinfo_modulelist)); 755 for (i = 0; i < btinfo_modulelist->num; i++) { 756 mbm[i].mmo_start = bim->base; 757 mbm[i].mmo_end = bim->base + bim->len; 758 mbm[i].mmo_string = (char *)vtophys(bim->path); 759 mbm[i].mmo_reserved = 0; 760 bim++; 761 } 762 mbi->mi_flags |= MULTIBOOT_INFO_HAS_MODS; 763 mbi->mi_mods_count = btinfo_modulelist->num; 764 mbi->mi_mods_addr = vtophys(mbm); 765 } 766 } 767 768 #ifdef DEBUG 769 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 770 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 771 #endif 772 773 #if 0 774 if (btinfo_symtab.nsym) { 775 mbi->mi_flags |= MULTIBOOT_INFO_HAS_ELF_SYMS; 776 mbi->mi_elfshdr_addr = marks[MARK_SYM]; 777 btinfo_symtab.nsym = marks[MARK_NSYM]; 778 btinfo_symtab.ssym = marks[MARK_SYM]; 779 btinfo_symtab.esym = marks[MARK_END]; 780 #endif 781 782 multiboot(marks[MARK_ENTRY], vtophys(mbi), 783 x86_trunc_page(mbi->mi_mem_lower * 1024)); 784 panic("exec returned"); 785 786 out: 787 dealloc(mbi, 0); 788 return -1; 789 } 790 791 void 792 x86_progress(const char *fmt, ...) 793 { 794 va_list ap; 795 796 if ((howto & AB_SILENT) != 0) 797 return; 798 va_start(ap, fmt); 799 vprintf(fmt, ap); 800 va_end(ap); 801 } 802