exec.c revision 1.50
1 /* $NetBSD: exec.c,v 1.50 2012/05/21 21:34:16 dsl 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 NetBSD a.out kernel 92 * needs lowlevel startup from startprog.S 93 * This is a special version of exec.c to support use of XMS. 94 */ 95 96 #include <sys/param.h> 97 #include <sys/reboot.h> 98 #include <sys/reboot.h> 99 100 #include <machine/multiboot.h> 101 102 #include <lib/libsa/stand.h> 103 #include <lib/libkern/libkern.h> 104 105 #include "loadfile.h" 106 #include "libi386.h" 107 #include "bootinfo.h" 108 #include "bootmod.h" 109 #include "vbe.h" 110 #ifdef SUPPORT_PS2 111 #include "biosmca.h" 112 #endif 113 114 #define BOOT_NARGS 6 115 116 #ifndef PAGE_SIZE 117 #define PAGE_SIZE 4096 118 #endif 119 120 #define MODULE_WARNING_SEC 5 121 122 extern struct btinfo_console btinfo_console; 123 124 boot_module_t *boot_modules; 125 bool boot_modules_enabled = true; 126 bool kernel_loaded; 127 128 typedef struct userconf_command { 129 char *uc_text; 130 size_t uc_len; 131 struct userconf_command *uc_next; 132 } userconf_command_t; 133 userconf_command_t *userconf_commands = NULL; 134 135 static struct btinfo_framebuffer btinfo_framebuffer; 136 137 static struct btinfo_modulelist *btinfo_modulelist; 138 static size_t btinfo_modulelist_size; 139 static uint32_t image_end; 140 static char module_base[64] = "/"; 141 static int howto; 142 143 static struct btinfo_userconfcommands *btinfo_userconfcommands = NULL; 144 static size_t btinfo_userconfcommands_size = 0; 145 146 static void module_init(const char *); 147 static void module_add_common(char *, uint8_t); 148 149 static void userconf_init(void); 150 151 void 152 framebuffer_configure(struct btinfo_framebuffer *fb) 153 { 154 if (fb) 155 btinfo_framebuffer = *fb; 156 else { 157 btinfo_framebuffer.physaddr = 0; 158 btinfo_framebuffer.flags = 0; 159 } 160 } 161 162 void 163 module_add(char *name) 164 { 165 return module_add_common(name, BM_TYPE_KMOD); 166 } 167 168 void 169 splash_add(char *name) 170 { 171 return module_add_common(name, BM_TYPE_IMAGE); 172 } 173 174 void 175 rnd_add(char *name) 176 { 177 return module_add_common(name, BM_TYPE_RND); 178 } 179 180 static void 181 module_add_common(char *name, uint8_t type) 182 { 183 boot_module_t *bm, *bmp; 184 size_t len; 185 char *str; 186 187 while (*name == ' ' || *name == '\t') 188 ++name; 189 190 bm = alloc(sizeof(boot_module_t)); 191 len = strlen(name) + 1; 192 str = alloc(len); 193 if (bm == NULL || str == NULL) { 194 printf("couldn't allocate module\n"); 195 return; 196 } 197 memcpy(str, name, len); 198 bm->bm_path = str; 199 bm->bm_next = NULL; 200 bm->bm_type = type; 201 if (boot_modules == NULL) 202 boot_modules = bm; 203 else { 204 for (bmp = boot_modules; bmp->bm_next; 205 bmp = bmp->bm_next) 206 ; 207 bmp->bm_next = bm; 208 } 209 } 210 211 void 212 userconf_add(char *cmd) 213 { 214 userconf_command_t *uc; 215 size_t len; 216 char *text; 217 218 while (*cmd == ' ' || *cmd == '\t') 219 ++cmd; 220 221 uc = alloc(sizeof(*uc)); 222 if (uc == NULL) { 223 printf("couldn't allocate command\n"); 224 return; 225 } 226 227 len = strlen(cmd) + 1; 228 text = alloc(len); 229 if (text == NULL) { 230 dealloc(uc, sizeof(*uc)); 231 printf("couldn't allocate command\n"); 232 return; 233 } 234 memcpy(text, cmd, len); 235 236 uc->uc_text = text; 237 uc->uc_len = len; 238 uc->uc_next = NULL; 239 240 if (userconf_commands == NULL) 241 userconf_commands = uc; 242 else { 243 userconf_command_t *ucp; 244 for (ucp = userconf_commands; ucp->uc_next != NULL; 245 ucp = ucp->uc_next) 246 ; 247 ucp->uc_next = uc; 248 } 249 } 250 251 static int 252 common_load_kernel(const char *file, u_long *basemem, u_long *extmem, 253 physaddr_t loadaddr, int floppy, u_long marks[MARK_MAX]) 254 { 255 int fd; 256 #ifdef XMS 257 u_long xmsmem; 258 physaddr_t origaddr = loadaddr; 259 #endif 260 261 *extmem = getextmem(); 262 *basemem = getbasemem(); 263 264 #ifdef XMS 265 if ((getextmem1() == 0) && (xmsmem = checkxms())) { 266 u_long kernsize; 267 268 /* 269 * With "CONSERVATIVE_MEMDETECT", extmem is 0 because 270 * getextmem() is getextmem1(). Without, the "smart" 271 * methods could fail to report all memory as well. 272 * xmsmem is a few kB less than the actual size, but 273 * better than nothing. 274 */ 275 if (xmsmem > *extmem) 276 *extmem = xmsmem; 277 /* 278 * Get the size of the kernel 279 */ 280 marks[MARK_START] = loadaddr; 281 if ((fd = loadfile(file, marks, COUNT_KERNEL)) == -1) 282 return EIO; 283 close(fd); 284 285 kernsize = marks[MARK_END]; 286 kernsize = (kernsize + 1023) / 1024; 287 288 loadaddr = xmsalloc(kernsize); 289 if (!loadaddr) 290 return ENOMEM; 291 } 292 #endif 293 marks[MARK_START] = loadaddr; 294 if ((fd = loadfile(file, marks, 295 LOAD_KERNEL & ~(floppy ? LOAD_BACKWARDS : 0))) == -1) 296 return EIO; 297 298 close(fd); 299 300 /* If the root fs type is unusual, load its module. */ 301 if (fsmod != NULL) 302 module_add(fsmod); 303 304 /* 305 * Gather some information for the kernel. Do this after the 306 * "point of no return" to avoid memory leaks. 307 * (but before DOS might be trashed in the XMS case) 308 */ 309 #ifdef PASS_BIOSGEOM 310 bi_getbiosgeom(); 311 #endif 312 #ifdef PASS_MEMMAP 313 bi_getmemmap(); 314 #endif 315 316 #ifdef XMS 317 if (loadaddr != origaddr) { 318 /* 319 * We now have done our last DOS IO, so we may 320 * trash the OS. Copy the data from the temporary 321 * buffer to its real address. 322 */ 323 marks[MARK_START] -= loadaddr; 324 marks[MARK_END] -= loadaddr; 325 marks[MARK_SYM] -= loadaddr; 326 marks[MARK_END] -= loadaddr; 327 ppbcopy(loadaddr, origaddr, marks[MARK_END]); 328 } 329 #endif 330 marks[MARK_END] = (((u_long) marks[MARK_END] + sizeof(int) - 1)) & 331 (-sizeof(int)); 332 image_end = marks[MARK_END]; 333 kernel_loaded = true; 334 335 return 0; 336 } 337 338 int 339 exec_netbsd(const char *file, physaddr_t loadaddr, int boothowto, int floppy, 340 void (*callback)(void)) 341 { 342 u_long boot_argv[BOOT_NARGS]; 343 u_long marks[MARK_MAX]; 344 struct btinfo_symtab btinfo_symtab; 345 u_long extmem; 346 u_long basemem; 347 348 #ifdef DEBUG 349 printf("exec: file=%s loadaddr=0x%lx\n", 350 file ? file : "NULL", loadaddr); 351 #endif 352 353 BI_ALLOC(32); /* ??? */ 354 355 BI_ADD(&btinfo_console, BTINFO_CONSOLE, sizeof(struct btinfo_console)); 356 357 howto = boothowto; 358 359 if (common_load_kernel(file, &basemem, &extmem, loadaddr, floppy, marks)) 360 goto out; 361 362 boot_argv[0] = boothowto; 363 boot_argv[1] = 0; 364 boot_argv[2] = vtophys(bootinfo); /* old cyl offset */ 365 boot_argv[3] = marks[MARK_END]; 366 boot_argv[4] = extmem; 367 boot_argv[5] = basemem; 368 369 /* pull in any modules if necessary */ 370 if (boot_modules_enabled) { 371 module_init(file); 372 if (btinfo_modulelist) { 373 BI_ADD(btinfo_modulelist, BTINFO_MODULELIST, 374 btinfo_modulelist_size); 375 } 376 } 377 378 userconf_init(); 379 if (btinfo_userconfcommands != NULL) 380 BI_ADD(btinfo_userconfcommands, BTINFO_USERCONFCOMMANDS, 381 btinfo_userconfcommands_size); 382 383 #ifdef DEBUG 384 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 385 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 386 #endif 387 388 btinfo_symtab.nsym = marks[MARK_NSYM]; 389 btinfo_symtab.ssym = marks[MARK_SYM]; 390 btinfo_symtab.esym = marks[MARK_END]; 391 BI_ADD(&btinfo_symtab, BTINFO_SYMTAB, sizeof(struct btinfo_symtab)); 392 393 /* set new video mode if necessary */ 394 vbe_commit(); 395 BI_ADD(&btinfo_framebuffer, BTINFO_FRAMEBUFFER, 396 sizeof(struct btinfo_framebuffer)); 397 398 if (callback != NULL) 399 (*callback)(); 400 startprog(marks[MARK_ENTRY], BOOT_NARGS, boot_argv, 401 x86_trunc_page(basemem*1024)); 402 panic("exec returned"); 403 404 out: 405 BI_FREE(); 406 bootinfo = 0; 407 return -1; 408 } 409 410 static void 411 extract_device(const char *path, char *buf, size_t buflen) 412 { 413 int i; 414 415 if (strchr(path, ':') != NULL) { 416 for (i = 0; i < buflen - 2 && path[i] != ':'; i++) 417 buf[i] = path[i]; 418 buf[i++] = ':'; 419 buf[i] = '\0'; 420 } else 421 buf[0] = '\0'; 422 } 423 424 static const char * 425 module_path(boot_module_t *bm, const char *kdev) 426 { 427 static char buf[256]; 428 char name_buf[256], dev_buf[64]; 429 const char *name, *name2, *p; 430 431 name = bm->bm_path; 432 for (name2 = name; *name2; ++name2) { 433 if (*name2 == ' ' || *name2 == '\t') { 434 strlcpy(name_buf, name, sizeof(name_buf)); 435 if (name2 - name < sizeof(name_buf)) 436 name_buf[name2 - name] = '\0'; 437 name = name_buf; 438 break; 439 } 440 } 441 if ((p = strchr(name, ':')) != NULL) { 442 /* device specified, use it */ 443 if (p[1] == '/') 444 snprintf(buf, sizeof(buf), "%s", name); 445 else { 446 p++; 447 extract_device(name, dev_buf, sizeof(dev_buf)); 448 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 449 dev_buf, module_base, p, p); 450 } 451 } else { 452 /* device not specified; load from kernel device if known */ 453 if (name[0] == '/') 454 snprintf(buf, sizeof(buf), "%s%s", kdev, name); 455 else 456 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 457 kdev, module_base, name, name); 458 } 459 460 return buf; 461 } 462 463 static int 464 module_open(boot_module_t *bm, int mode, const char *kdev, bool doload) 465 { 466 int fd; 467 const char *path; 468 469 /* check the expanded path first */ 470 path = module_path(bm, kdev); 471 fd = open(path, mode); 472 if (fd != -1) { 473 if ((howto & AB_SILENT) == 0 && doload) 474 printf("Loading %s ", path); 475 } else { 476 /* now attempt the raw path provided */ 477 fd = open(bm->bm_path, mode); 478 if (fd != -1 && (howto & AB_SILENT) == 0 && doload) 479 printf("Loading %s ", bm->bm_path); 480 } 481 if (!doload && fd == -1) { 482 printf("WARNING: couldn't open %s", bm->bm_path); 483 if (strcmp(bm->bm_path, path) != 0) 484 printf(" (%s)", path); 485 printf("\n"); 486 } 487 return fd; 488 } 489 490 static void 491 module_init(const char *kernel_path) 492 { 493 struct bi_modulelist_entry *bi; 494 struct stat st; 495 const char *machine; 496 char kdev[64]; 497 char *buf; 498 boot_module_t *bm; 499 size_t len; 500 off_t off; 501 int err, fd, nfail = 0; 502 503 extract_device(kernel_path, kdev, sizeof(kdev)); 504 505 switch (netbsd_elf_class) { 506 case ELFCLASS32: 507 machine = "i386"; 508 break; 509 case ELFCLASS64: 510 machine = "amd64"; 511 break; 512 default: 513 machine = "generic"; 514 break; 515 } 516 if (netbsd_version / 1000000 % 100 == 99) { 517 /* -current */ 518 snprintf(module_base, sizeof(module_base), 519 "/stand/%s/%d.%d.%d/modules", machine, 520 netbsd_version / 100000000, 521 netbsd_version / 1000000 % 100, 522 netbsd_version / 100 % 100); 523 } else if (netbsd_version != 0) { 524 /* release */ 525 snprintf(module_base, sizeof(module_base), 526 "/stand/%s/%d.%d/modules", machine, 527 netbsd_version / 100000000, 528 netbsd_version / 1000000 % 100); 529 } 530 531 /* First, see which modules are valid and calculate btinfo size */ 532 len = sizeof(struct btinfo_modulelist); 533 for (bm = boot_modules; bm; bm = bm->bm_next) { 534 fd = module_open(bm, 0, kdev, false); 535 if (fd == -1) { 536 bm->bm_len = -1; 537 ++nfail; 538 continue; 539 } 540 err = fstat(fd, &st); 541 if (err == -1 || st.st_size == -1) { 542 printf("WARNING: couldn't stat %s\n", bm->bm_path); 543 close(fd); 544 bm->bm_len = -1; 545 ++nfail; 546 continue; 547 } 548 bm->bm_len = st.st_size; 549 close(fd); 550 len += sizeof(struct bi_modulelist_entry); 551 } 552 553 /* Allocate the module list */ 554 btinfo_modulelist = alloc(len); 555 if (btinfo_modulelist == NULL) { 556 printf("WARNING: couldn't allocate module list\n"); 557 wait_sec(MODULE_WARNING_SEC); 558 return; 559 } 560 memset(btinfo_modulelist, 0, len); 561 btinfo_modulelist_size = len; 562 563 /* Fill in btinfo structure */ 564 buf = (char *)btinfo_modulelist; 565 btinfo_modulelist->num = 0; 566 off = sizeof(struct btinfo_modulelist); 567 568 for (bm = boot_modules; bm; bm = bm->bm_next) { 569 if (bm->bm_len == -1) 570 continue; 571 fd = module_open(bm, 0, kdev, true); 572 if (fd == -1) 573 continue; 574 image_end = (image_end + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1); 575 len = pread(fd, (void *)image_end, SSIZE_MAX); 576 if (len < bm->bm_len) { 577 if ((howto & AB_SILENT) != 0) 578 printf("Loading %s ", bm->bm_path); 579 printf(" FAILED\n"); 580 } else { 581 btinfo_modulelist->num++; 582 bi = (struct bi_modulelist_entry *)(buf + off); 583 off += sizeof(struct bi_modulelist_entry); 584 strncpy(bi->path, bm->bm_path, sizeof(bi->path) - 1); 585 bi->base = image_end; 586 bi->len = len; 587 switch (bm->bm_type) { 588 case BM_TYPE_KMOD: 589 bi->type = BI_MODULE_ELF; 590 break; 591 case BM_TYPE_IMAGE: 592 bi->type = BI_MODULE_IMAGE; 593 break; 594 case BM_TYPE_RND: 595 default: 596 /* safest -- rnd checks the sha1 */ 597 bi->type = BI_MODULE_RND; 598 break; 599 } 600 if ((howto & AB_SILENT) == 0) 601 printf(" \n"); 602 } 603 if (len > 0) 604 image_end += len; 605 close(fd); 606 } 607 btinfo_modulelist->endpa = image_end; 608 609 if (nfail > 0) { 610 printf("WARNING: %d module%s failed to load\n", 611 nfail, nfail == 1 ? "" : "s"); 612 #if notyet 613 wait_sec(MODULE_WARNING_SEC); 614 #endif 615 } 616 } 617 618 static void 619 userconf_init(void) 620 { 621 size_t count, len; 622 userconf_command_t *uc; 623 char *buf; 624 off_t off; 625 626 /* Calculate the userconf commands list size */ 627 count = 0; 628 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) 629 count++; 630 len = sizeof(btinfo_userconfcommands) + 631 count * sizeof(struct bi_userconfcommand); 632 633 /* Allocate the userconf commands list */ 634 btinfo_userconfcommands = alloc(len); 635 if (btinfo_userconfcommands == NULL) { 636 printf("WARNING: couldn't allocate userconf commands list\n"); 637 return; 638 } 639 memset(btinfo_userconfcommands, 0, len); 640 btinfo_userconfcommands_size = len; 641 642 /* Fill in btinfo structure */ 643 buf = (char *)btinfo_userconfcommands; 644 off = sizeof(*btinfo_userconfcommands); 645 btinfo_userconfcommands->num = 0; 646 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) { 647 struct bi_userconfcommand *bi; 648 bi = (struct bi_userconfcommand *)(buf + off); 649 strncpy(bi->text, uc->uc_text, sizeof(bi->text) - 1); 650 651 off += sizeof(*bi); 652 btinfo_userconfcommands->num++; 653 } 654 } 655 656 int 657 exec_multiboot(const char *file, char *args) 658 { 659 struct multiboot_info *mbi; 660 struct multiboot_module *mbm; 661 struct bi_modulelist_entry *bim; 662 int i, len; 663 u_long marks[MARK_MAX]; 664 u_long extmem; 665 u_long basemem; 666 char *cmdline; 667 668 mbi = alloc(sizeof(struct multiboot_info)); 669 mbi->mi_flags = MULTIBOOT_INFO_HAS_MEMORY; 670 671 if (common_load_kernel(file, &basemem, &extmem, 0, 0, marks)) 672 goto out; 673 674 mbi->mi_mem_upper = extmem; 675 mbi->mi_mem_lower = basemem; 676 677 if (args) { 678 mbi->mi_flags |= MULTIBOOT_INFO_HAS_CMDLINE; 679 len = strlen(file) + 1 + strlen(args) + 1; 680 cmdline = alloc(len); 681 snprintf(cmdline, len, "%s %s", file, args); 682 mbi->mi_cmdline = (char *) vtophys(cmdline); 683 } 684 685 /* pull in any modules if necessary */ 686 if (boot_modules_enabled) { 687 module_init(file); 688 if (btinfo_modulelist) { 689 mbm = alloc(sizeof(struct multiboot_module) * 690 btinfo_modulelist->num); 691 692 bim = (struct bi_modulelist_entry *) 693 (((char *) btinfo_modulelist) + 694 sizeof(struct btinfo_modulelist)); 695 for (i = 0; i < btinfo_modulelist->num; i++) { 696 mbm[i].mmo_start = bim->base; 697 mbm[i].mmo_end = bim->base + bim->len; 698 mbm[i].mmo_string = (char *)vtophys(bim->path); 699 mbm[i].mmo_reserved = 0; 700 bim++; 701 } 702 mbi->mi_flags |= MULTIBOOT_INFO_HAS_MODS; 703 mbi->mi_mods_count = btinfo_modulelist->num; 704 mbi->mi_mods_addr = vtophys(mbm); 705 } 706 } 707 708 #ifdef DEBUG 709 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 710 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 711 #endif 712 713 714 #if 0 715 if (btinfo_symtab.nsym) { 716 mbi->mi_flags |= MULTIBOOT_INFO_HAS_ELF_SYMS; 717 mbi->mi_elfshdr_addr = marks[MARK_SYM]; 718 btinfo_symtab.nsym = marks[MARK_NSYM]; 719 btinfo_symtab.ssym = marks[MARK_SYM]; 720 btinfo_symtab.esym = marks[MARK_END]; 721 #endif 722 723 multiboot(marks[MARK_ENTRY], vtophys(mbi), 724 x86_trunc_page(mbi->mi_mem_lower*1024)); 725 panic("exec returned"); 726 727 out: 728 dealloc(mbi, 0); 729 return -1; 730 } 731 732 void 733 x86_progress(const char *fmt, ...) 734 { 735 va_list ap; 736 737 if ((howto & AB_SILENT) != 0) 738 return; 739 va_start(ap, fmt); 740 vprintf(fmt, ap); 741 va_end(ap); 742 } 743
Indexes created Tue Sep 23 14:10:03 GMT 2025