exec.c revision 1.64
1/* $NetBSD: exec.c,v 1.64 2017/02/11 10:18:10 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 */ 115static 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 126extern struct btinfo_console btinfo_console; 127 128boot_module_t *boot_modules; 129bool boot_modules_enabled = true; 130bool kernel_loaded; 131 132typedef struct userconf_command { 133 char *uc_text; 134 size_t uc_len; 135 struct userconf_command *uc_next; 136} userconf_command_t; 137userconf_command_t *userconf_commands = NULL; 138 139static struct btinfo_framebuffer btinfo_framebuffer; 140 141static struct btinfo_modulelist *btinfo_modulelist; 142static size_t btinfo_modulelist_size; 143static uint32_t image_end; 144static char module_base[64] = "/"; 145static int howto; 146 147static struct btinfo_userconfcommands *btinfo_userconfcommands = NULL; 148static size_t btinfo_userconfcommands_size = 0; 149 150static void module_init(const char *); 151static void module_add_common(const char *, uint8_t); 152 153static void userconf_init(void); 154 155void 156framebuffer_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 166void 167module_add(char *name) 168{ 169 return module_add_common(name, BM_TYPE_KMOD); 170} 171 172void 173splash_add(char *name) 174{ 175 return module_add_common(name, BM_TYPE_IMAGE); 176} 177 178void 179rnd_add(char *name) 180{ 181 return module_add_common(name, BM_TYPE_RND); 182} 183 184void 185fs_add(char *name) 186{ 187 return module_add_common(name, BM_TYPE_FS); 188} 189 190static void 191module_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 221void 222userconf_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 261static int 262common_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 382int 383exec_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#ifdef EFIBOOT 393 int i; 394#endif 395 396#ifdef DEBUG 397 printf("exec: file=%s loadaddr=0x%lx\n", file ? file : "NULL", 398 loadaddr); 399#endif 400 401 BI_ALLOC(BTINFO_MAX); 402 403 BI_ADD(&btinfo_console, BTINFO_CONSOLE, sizeof(struct btinfo_console)); 404 405 howto = boothowto; 406 407 memset(marks, 0, sizeof(marks)); 408 409 error = common_load_kernel(file, &basemem, &extmem, loadaddr, floppy, 410 marks); 411 if (error) { 412 errno = error; 413 goto out; 414 } 415 416 boot_argv[0] = boothowto; 417 boot_argv[1] = 0; 418 boot_argv[2] = vtophys(bootinfo); /* old cyl offset */ 419 boot_argv[3] = marks[MARK_END]; 420 boot_argv[4] = extmem; 421 boot_argv[5] = basemem; 422 423 /* pull in any modules if necessary */ 424 if (boot_modules_enabled) { 425 module_init(file); 426 if (btinfo_modulelist) { 427 BI_ADD(btinfo_modulelist, BTINFO_MODULELIST, 428 btinfo_modulelist_size); 429 } 430 } 431 432 userconf_init(); 433 if (btinfo_userconfcommands != NULL) 434 BI_ADD(btinfo_userconfcommands, BTINFO_USERCONFCOMMANDS, 435 btinfo_userconfcommands_size); 436 437#ifdef DEBUG 438 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 439 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 440#endif 441 442 btinfo_symtab.nsym = marks[MARK_NSYM]; 443 btinfo_symtab.ssym = marks[MARK_SYM]; 444 btinfo_symtab.esym = marks[MARK_END]; 445 BI_ADD(&btinfo_symtab, BTINFO_SYMTAB, sizeof(struct btinfo_symtab)); 446 447 /* set new video mode if necessary */ 448 vbe_commit(); 449 BI_ADD(&btinfo_framebuffer, BTINFO_FRAMEBUFFER, 450 sizeof(struct btinfo_framebuffer)); 451 452 if (callback != NULL) 453 (*callback)(); 454#ifdef EFIBOOT 455 /* Copy bootinfo to safe arena. */ 456 for (i = 0; i < bootinfo->nentries; i++) { 457 struct btinfo_common *bi = (void *)(u_long)bootinfo->entry[i]; 458 char *p = alloc(bi->len); 459 memcpy(p, bi, bi->len); 460 bootinfo->entry[i] = vtophys(p); 461 } 462 463 /* Copy the kernel to original load address. */ 464 memmove((void *)marks[MARK_START], 465 (void *)(efi_loadaddr + marks[MARK_START]), 466 marks[MARK_END] - marks[MARK_START]); 467#endif 468 startprog(marks[MARK_ENTRY], BOOT_NARGS, boot_argv, 469 x86_trunc_page(basemem * 1024)); 470 panic("exec returned"); 471 472out: 473 BI_FREE(); 474 bootinfo = NULL; 475 return -1; 476} 477 478static void 479extract_device(const char *path, char *buf, size_t buflen) 480{ 481 size_t i; 482 483 if (strchr(path, ':') != NULL) { 484 for (i = 0; i < buflen - 2 && path[i] != ':'; i++) 485 buf[i] = path[i]; 486 buf[i++] = ':'; 487 buf[i] = '\0'; 488 } else 489 buf[0] = '\0'; 490} 491 492static const char * 493module_path(boot_module_t *bm, const char *kdev) 494{ 495 static char buf[256]; 496 char name_buf[256], dev_buf[64]; 497 const char *name, *name2, *p; 498 499 name = bm->bm_path; 500 for (name2 = name; *name2; ++name2) { 501 if (*name2 == ' ' || *name2 == '\t') { 502 strlcpy(name_buf, name, sizeof(name_buf)); 503 if ((uintptr_t)name2 - (uintptr_t)name < sizeof(name_buf)) 504 name_buf[name2 - name] = '\0'; 505 name = name_buf; 506 break; 507 } 508 } 509 if ((p = strchr(name, ':')) != NULL) { 510 /* device specified, use it */ 511 if (p[1] == '/') 512 snprintf(buf, sizeof(buf), "%s", name); 513 else { 514 p++; 515 extract_device(name, dev_buf, sizeof(dev_buf)); 516 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 517 dev_buf, module_base, p, p); 518 } 519 } else { 520 /* device not specified; load from kernel device if known */ 521 if (name[0] == '/') 522 snprintf(buf, sizeof(buf), "%s%s", kdev, name); 523 else 524 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 525 kdev, module_base, name, name); 526 } 527 528 return buf; 529} 530 531static int 532module_open(boot_module_t *bm, int mode, const char *kdev, bool doload) 533{ 534 int fd; 535 const char *path; 536 537 /* check the expanded path first */ 538 path = module_path(bm, kdev); 539 fd = open(path, mode); 540 if (fd != -1) { 541 if ((howto & AB_SILENT) == 0 && doload) 542 printf("Loading %s ", path); 543 } else { 544 /* now attempt the raw path provided */ 545 fd = open(bm->bm_path, mode); 546 if (fd != -1 && (howto & AB_SILENT) == 0 && doload) 547 printf("Loading %s ", bm->bm_path); 548 } 549 if (!doload && fd == -1) { 550 printf("WARNING: couldn't open %s", bm->bm_path); 551 if (strcmp(bm->bm_path, path) != 0) 552 printf(" (%s)", path); 553 printf("\n"); 554 } 555 return fd; 556} 557 558static void 559module_init(const char *kernel_path) 560{ 561 struct bi_modulelist_entry *bi; 562 struct stat st; 563 const char *machine; 564 char kdev[64]; 565 char *buf; 566 boot_module_t *bm; 567 ssize_t len; 568 off_t off; 569 int err, fd, nfail = 0; 570 571 extract_device(kernel_path, kdev, sizeof(kdev)); 572 573 switch (netbsd_elf_class) { 574 case ELFCLASS32: 575 machine = "i386"; 576 break; 577 case ELFCLASS64: 578 machine = "amd64"; 579 break; 580 default: 581 machine = "generic"; 582 break; 583 } 584 if (netbsd_version / 1000000 % 100 == 99) { 585 /* -current */ 586 snprintf(module_base, sizeof(module_base), 587 "/stand/%s/%d.%d.%d/modules", machine, 588 netbsd_version / 100000000, 589 netbsd_version / 1000000 % 100, 590 netbsd_version / 100 % 100); 591 } else if (netbsd_version != 0) { 592 /* release */ 593 snprintf(module_base, sizeof(module_base), 594 "/stand/%s/%d.%d/modules", machine, 595 netbsd_version / 100000000, 596 netbsd_version / 1000000 % 100); 597 } 598 599 /* First, see which modules are valid and calculate btinfo size */ 600 len = sizeof(struct btinfo_modulelist); 601 for (bm = boot_modules; bm; bm = bm->bm_next) { 602 fd = module_open(bm, 0, kdev, false); 603 if (fd == -1) { 604 bm->bm_len = -1; 605 ++nfail; 606 continue; 607 } 608 err = fstat(fd, &st); 609 if (err == -1 || st.st_size == -1) { 610 printf("WARNING: couldn't stat %s\n", bm->bm_path); 611 close(fd); 612 bm->bm_len = -1; 613 ++nfail; 614 continue; 615 } 616 bm->bm_len = st.st_size; 617 close(fd); 618 len += sizeof(struct bi_modulelist_entry); 619 } 620 621 /* Allocate the module list */ 622 btinfo_modulelist = alloc(len); 623 if (btinfo_modulelist == NULL) { 624 printf("WARNING: couldn't allocate module list\n"); 625 wait_sec(MODULE_WARNING_SEC); 626 return; 627 } 628 memset(btinfo_modulelist, 0, len); 629 btinfo_modulelist_size = len; 630 631 /* Fill in btinfo structure */ 632 buf = (char *)btinfo_modulelist; 633 btinfo_modulelist->num = 0; 634 off = sizeof(struct btinfo_modulelist); 635 636 for (bm = boot_modules; bm; bm = bm->bm_next) { 637 if (bm->bm_len == -1) 638 continue; 639 fd = module_open(bm, 0, kdev, true); 640 if (fd == -1) 641 continue; 642 image_end = (image_end + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1); 643 len = pread(fd, (void *)(uintptr_t)image_end, SSIZE_MAX); 644 if (len < bm->bm_len) { 645 if ((howto & AB_SILENT) != 0) 646 printf("Loading %s ", bm->bm_path); 647 printf(" FAILED\n"); 648 } else { 649 btinfo_modulelist->num++; 650 bi = (struct bi_modulelist_entry *)(buf + off); 651 off += sizeof(struct bi_modulelist_entry); 652 strncpy(bi->path, bm->bm_path, sizeof(bi->path) - 1); 653 bi->base = image_end; 654 bi->len = len; 655 switch (bm->bm_type) { 656 case BM_TYPE_KMOD: 657 bi->type = BI_MODULE_ELF; 658 break; 659 case BM_TYPE_IMAGE: 660 bi->type = BI_MODULE_IMAGE; 661 break; 662 case BM_TYPE_FS: 663 bi->type = BI_MODULE_FS; 664 break; 665 case BM_TYPE_RND: 666 default: 667 /* safest -- rnd checks the sha1 */ 668 bi->type = BI_MODULE_RND; 669 break; 670 } 671 if ((howto & AB_SILENT) == 0) 672 printf(" \n"); 673 } 674 if (len > 0) 675 image_end += len; 676 close(fd); 677 } 678 btinfo_modulelist->endpa = image_end; 679 680 if (nfail > 0) { 681 printf("WARNING: %d module%s failed to load\n", 682 nfail, nfail == 1 ? "" : "s"); 683#if notyet 684 wait_sec(MODULE_WARNING_SEC); 685#endif 686 } 687} 688 689static void 690userconf_init(void) 691{ 692 size_t count, len; 693 userconf_command_t *uc; 694 char *buf; 695 off_t off; 696 697 /* Calculate the userconf commands list size */ 698 count = 0; 699 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) 700 count++; 701 len = sizeof(*btinfo_userconfcommands) + 702 count * sizeof(struct bi_userconfcommand); 703 704 /* Allocate the userconf commands list */ 705 btinfo_userconfcommands = alloc(len); 706 if (btinfo_userconfcommands == NULL) { 707 printf("WARNING: couldn't allocate userconf commands list\n"); 708 return; 709 } 710 memset(btinfo_userconfcommands, 0, len); 711 btinfo_userconfcommands_size = len; 712 713 /* Fill in btinfo structure */ 714 buf = (char *)btinfo_userconfcommands; 715 off = sizeof(*btinfo_userconfcommands); 716 btinfo_userconfcommands->num = 0; 717 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) { 718 struct bi_userconfcommand *bi; 719 bi = (struct bi_userconfcommand *)(buf + off); 720 strncpy(bi->text, uc->uc_text, sizeof(bi->text) - 1); 721 722 off += sizeof(*bi); 723 btinfo_userconfcommands->num++; 724 } 725} 726 727int 728exec_multiboot(const char *file, char *args) 729{ 730 struct multiboot_info *mbi; 731 struct multiboot_module *mbm; 732 struct bi_modulelist_entry *bim; 733 int i, len; 734 u_long marks[MARK_MAX]; 735 u_long extmem; 736 u_long basemem; 737 char *cmdline; 738 739 mbi = alloc(sizeof(struct multiboot_info)); 740 mbi->mi_flags = MULTIBOOT_INFO_HAS_MEMORY; 741 742 if (common_load_kernel(file, &basemem, &extmem, 0, 0, marks)) 743 goto out; 744 745 mbi->mi_mem_upper = extmem; 746 mbi->mi_mem_lower = basemem; 747 748 if (args) { 749 mbi->mi_flags |= MULTIBOOT_INFO_HAS_CMDLINE; 750 len = strlen(file) + 1 + strlen(args) + 1; 751 cmdline = alloc(len); 752 snprintf(cmdline, len, "%s %s", file, args); 753 mbi->mi_cmdline = (char *) vtophys(cmdline); 754 } 755 756 /* pull in any modules if necessary */ 757 if (boot_modules_enabled) { 758 module_init(file); 759 if (btinfo_modulelist) { 760 mbm = alloc(sizeof(struct multiboot_module) * 761 btinfo_modulelist->num); 762 763 bim = (struct bi_modulelist_entry *) 764 (((char *) btinfo_modulelist) + 765 sizeof(struct btinfo_modulelist)); 766 for (i = 0; i < btinfo_modulelist->num; i++) { 767 mbm[i].mmo_start = bim->base; 768 mbm[i].mmo_end = bim->base + bim->len; 769 mbm[i].mmo_string = (char *)vtophys(bim->path); 770 mbm[i].mmo_reserved = 0; 771 bim++; 772 } 773 mbi->mi_flags |= MULTIBOOT_INFO_HAS_MODS; 774 mbi->mi_mods_count = btinfo_modulelist->num; 775 mbi->mi_mods_addr = vtophys(mbm); 776 } 777 } 778 779#ifdef DEBUG 780 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 781 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 782#endif 783 784#if 0 785 if (btinfo_symtab.nsym) { 786 mbi->mi_flags |= MULTIBOOT_INFO_HAS_ELF_SYMS; 787 mbi->mi_elfshdr_addr = marks[MARK_SYM]; 788 btinfo_symtab.nsym = marks[MARK_NSYM]; 789 btinfo_symtab.ssym = marks[MARK_SYM]; 790 btinfo_symtab.esym = marks[MARK_END]; 791#endif 792 793 multiboot(marks[MARK_ENTRY], vtophys(mbi), 794 x86_trunc_page(mbi->mi_mem_lower * 1024)); 795 panic("exec returned"); 796 797out: 798 dealloc(mbi, 0); 799 return -1; 800} 801 802void 803x86_progress(const char *fmt, ...) 804{ 805 va_list ap; 806 807 if ((howto & AB_SILENT) != 0) 808 return; 809 va_start(ap, fmt); 810 vprintf(fmt, ap); 811 va_end(ap); 812} 813