exec.c revision 1.42.4.3
1 /* $NetBSD: exec.c,v 1.42.4.3 2011/05/31 03:04:05 rmind 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 #include <machine/stdarg.h> 102 103 #include <lib/libsa/stand.h> 104 #include <lib/libkern/libkern.h> 105 106 #include "loadfile.h" 107 #include "libi386.h" 108 #include "bootinfo.h" 109 #include "bootmod.h" 110 #include "vbe.h" 111 #ifdef SUPPORT_PS2 112 #include "biosmca.h" 113 #endif 114 115 #define BOOT_NARGS 6 116 117 #ifndef PAGE_SIZE 118 #define PAGE_SIZE 4096 119 #endif 120 121 #define MODULE_WARNING_SEC 5 122 123 extern struct btinfo_console btinfo_console; 124 125 boot_module_t *boot_modules; 126 bool boot_modules_enabled = true; 127 bool kernel_loaded; 128 129 typedef struct userconf_command { 130 char *uc_text; 131 size_t uc_len; 132 struct userconf_command *uc_next; 133 } userconf_command_t; 134 userconf_command_t *userconf_commands = NULL; 135 136 static struct btinfo_framebuffer btinfo_framebuffer; 137 138 static struct btinfo_modulelist *btinfo_modulelist; 139 static size_t btinfo_modulelist_size; 140 static uint32_t image_end; 141 static char module_base[64] = "/"; 142 static int howto; 143 144 static struct btinfo_userconfcommands *btinfo_userconfcommands = NULL; 145 static size_t btinfo_userconfcommands_size = 0; 146 147 static void module_init(const char *); 148 static void module_add_common(char *, uint8_t); 149 150 static void userconf_init(void); 151 152 void 153 framebuffer_configure(struct btinfo_framebuffer *fb) 154 { 155 if (fb) 156 btinfo_framebuffer = *fb; 157 else { 158 btinfo_framebuffer.physaddr = 0; 159 btinfo_framebuffer.flags = 0; 160 } 161 } 162 163 void 164 module_add(char *name) 165 { 166 return module_add_common(name, BM_TYPE_KMOD); 167 } 168 169 void 170 splash_add(char *name) 171 { 172 return module_add_common(name, BM_TYPE_IMAGE); 173 } 174 175 static void 176 module_add_common(char *name, uint8_t type) 177 { 178 boot_module_t *bm, *bmp; 179 size_t len; 180 char *str; 181 182 while (*name == ' ' || *name == '\t') 183 ++name; 184 185 bm = alloc(sizeof(boot_module_t)); 186 len = strlen(name) + 1; 187 str = alloc(len); 188 if (bm == NULL || str == NULL) { 189 printf("couldn't allocate module\n"); 190 return; 191 } 192 memcpy(str, name, len); 193 bm->bm_path = str; 194 bm->bm_next = NULL; 195 bm->bm_type = type; 196 if (boot_modules == NULL) 197 boot_modules = bm; 198 else { 199 for (bmp = boot_modules; bmp->bm_next; 200 bmp = bmp->bm_next) 201 ; 202 bmp->bm_next = bm; 203 } 204 } 205 206 void 207 userconf_add(char *cmd) 208 { 209 userconf_command_t *uc; 210 size_t len; 211 char *text; 212 213 while (*cmd == ' ' || *cmd == '\t') 214 ++cmd; 215 216 uc = alloc(sizeof(*uc)); 217 if (uc == NULL) { 218 printf("couldn't allocate command\n"); 219 return; 220 } 221 222 len = strlen(cmd) + 1; 223 text = alloc(len); 224 if (text == NULL) { 225 dealloc(uc, sizeof(*uc)); 226 printf("couldn't allocate command\n"); 227 return; 228 } 229 memcpy(text, cmd, len); 230 231 uc->uc_text = text; 232 uc->uc_len = len; 233 uc->uc_next = NULL; 234 235 if (userconf_commands == NULL) 236 userconf_commands = uc; 237 else { 238 userconf_command_t *ucp; 239 for (ucp = userconf_commands; ucp->uc_next != NULL; 240 ucp = ucp->uc_next) 241 ; 242 ucp->uc_next = uc; 243 } 244 } 245 246 static int 247 common_load_kernel(const char *file, u_long *basemem, u_long *extmem, 248 physaddr_t loadaddr, int floppy, u_long marks[MARK_MAX]) 249 { 250 int fd; 251 #ifdef XMS 252 u_long xmsmem; 253 physaddr_t origaddr = loadaddr; 254 #endif 255 256 *extmem = getextmem(); 257 *basemem = getbasemem(); 258 259 #ifdef XMS 260 if ((getextmem1() == 0) && (xmsmem = checkxms())) { 261 u_long kernsize; 262 263 /* 264 * With "CONSERVATIVE_MEMDETECT", extmem is 0 because 265 * getextmem() is getextmem1(). Without, the "smart" 266 * methods could fail to report all memory as well. 267 * xmsmem is a few kB less than the actual size, but 268 * better than nothing. 269 */ 270 if (xmsmem > *extmem) 271 *extmem = xmsmem; 272 /* 273 * Get the size of the kernel 274 */ 275 marks[MARK_START] = loadaddr; 276 if ((fd = loadfile(file, marks, COUNT_KERNEL)) == -1) 277 return EIO; 278 close(fd); 279 280 kernsize = marks[MARK_END]; 281 kernsize = (kernsize + 1023) / 1024; 282 283 loadaddr = xmsalloc(kernsize); 284 if (!loadaddr) 285 return ENOMEM; 286 } 287 #endif 288 marks[MARK_START] = loadaddr; 289 if ((fd = loadfile(file, marks, 290 LOAD_KERNEL & ~(floppy ? LOAD_BACKWARDS : 0))) == -1) 291 return EIO; 292 293 close(fd); 294 295 /* Now we know the root fs type, load modules for it. */ 296 module_add(fsmod); 297 if (fsmod2 != NULL && strcmp(fsmod, fsmod2) != 0) 298 module_add(fsmod2); 299 300 /* 301 * Gather some information for the kernel. Do this after the 302 * "point of no return" to avoid memory leaks. 303 * (but before DOS might be trashed in the XMS case) 304 */ 305 #ifdef PASS_BIOSGEOM 306 bi_getbiosgeom(); 307 #endif 308 #ifdef PASS_MEMMAP 309 bi_getmemmap(); 310 #endif 311 312 #ifdef XMS 313 if (loadaddr != origaddr) { 314 /* 315 * We now have done our last DOS IO, so we may 316 * trash the OS. Copy the data from the temporary 317 * buffer to its real address. 318 */ 319 marks[MARK_START] -= loadaddr; 320 marks[MARK_END] -= loadaddr; 321 marks[MARK_SYM] -= loadaddr; 322 marks[MARK_END] -= loadaddr; 323 ppbcopy(loadaddr, origaddr, marks[MARK_END]); 324 } 325 #endif 326 marks[MARK_END] = (((u_long) marks[MARK_END] + sizeof(int) - 1)) & 327 (-sizeof(int)); 328 image_end = marks[MARK_END]; 329 kernel_loaded = true; 330 331 return 0; 332 } 333 334 int 335 exec_netbsd(const char *file, physaddr_t loadaddr, int boothowto, int floppy, 336 void (*callback)(void)) 337 { 338 u_long boot_argv[BOOT_NARGS]; 339 u_long marks[MARK_MAX]; 340 struct btinfo_symtab btinfo_symtab; 341 u_long extmem; 342 u_long basemem; 343 344 #ifdef DEBUG 345 printf("exec: file=%s loadaddr=0x%lx\n", 346 file ? file : "NULL", loadaddr); 347 #endif 348 349 BI_ALLOC(32); /* ??? */ 350 351 BI_ADD(&btinfo_console, BTINFO_CONSOLE, sizeof(struct btinfo_console)); 352 353 howto = boothowto; 354 355 if (common_load_kernel(file, &basemem, &extmem, loadaddr, floppy, marks)) 356 goto out; 357 358 boot_argv[0] = boothowto; 359 boot_argv[1] = 0; 360 boot_argv[2] = vtophys(bootinfo); /* old cyl offset */ 361 boot_argv[3] = marks[MARK_END]; 362 boot_argv[4] = extmem; 363 boot_argv[5] = basemem; 364 365 /* pull in any modules if necessary */ 366 if (boot_modules_enabled) { 367 module_init(file); 368 if (btinfo_modulelist) { 369 BI_ADD(btinfo_modulelist, BTINFO_MODULELIST, 370 btinfo_modulelist_size); 371 } 372 } 373 374 userconf_init(); 375 if (btinfo_userconfcommands != NULL) 376 BI_ADD(btinfo_userconfcommands, BTINFO_USERCONFCOMMANDS, 377 btinfo_userconfcommands_size); 378 379 #ifdef DEBUG 380 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 381 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 382 #endif 383 384 btinfo_symtab.nsym = marks[MARK_NSYM]; 385 btinfo_symtab.ssym = marks[MARK_SYM]; 386 btinfo_symtab.esym = marks[MARK_END]; 387 BI_ADD(&btinfo_symtab, BTINFO_SYMTAB, sizeof(struct btinfo_symtab)); 388 389 /* set new video mode if necessary */ 390 vbe_commit(); 391 BI_ADD(&btinfo_framebuffer, BTINFO_FRAMEBUFFER, 392 sizeof(struct btinfo_framebuffer)); 393 394 if (callback != NULL) 395 (*callback)(); 396 startprog(marks[MARK_ENTRY], BOOT_NARGS, boot_argv, 397 x86_trunc_page(basemem*1024)); 398 panic("exec returned"); 399 400 out: 401 BI_FREE(); 402 bootinfo = 0; 403 return -1; 404 } 405 406 static void 407 extract_device(const char *path, char *buf, size_t buflen) 408 { 409 int i; 410 411 if (strchr(path, ':') != NULL) { 412 for (i = 0; i < buflen - 2 && path[i] != ':'; i++) 413 buf[i] = path[i]; 414 buf[i++] = ':'; 415 buf[i] = '\0'; 416 } else 417 buf[0] = '\0'; 418 } 419 420 static const char * 421 module_path(boot_module_t *bm, const char *kdev) 422 { 423 static char buf[256]; 424 char name_buf[256], dev_buf[64]; 425 const char *name, *name2, *p; 426 427 name = bm->bm_path; 428 for (name2 = name; *name2; ++name2) { 429 if (*name2 == ' ' || *name2 == '\t') { 430 strlcpy(name_buf, name, sizeof(name_buf)); 431 if (name2 - name < sizeof(name_buf)) 432 name_buf[name2 - name] = '\0'; 433 name = name_buf; 434 break; 435 } 436 } 437 if ((p = strchr(name, ':')) != NULL) { 438 /* device specified, use it */ 439 if (p[1] == '/') 440 snprintf(buf, sizeof(buf), "%s", name); 441 else { 442 p++; 443 extract_device(name, dev_buf, sizeof(dev_buf)); 444 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 445 dev_buf, module_base, p, p); 446 } 447 } else { 448 /* device not specified; load from kernel device if known */ 449 if (name[0] == '/') 450 snprintf(buf, sizeof(buf), "%s%s", kdev, name); 451 else 452 snprintf(buf, sizeof(buf), "%s%s/%s/%s.kmod", 453 kdev, module_base, name, name); 454 } 455 456 return buf; 457 } 458 459 static int 460 module_open(boot_module_t *bm, int mode, const char *kdev, bool doload) 461 { 462 int fd; 463 const char *path; 464 465 /* check the expanded path first */ 466 path = module_path(bm, kdev); 467 fd = open(path, mode); 468 if (fd != -1) { 469 if ((howto & AB_SILENT) == 0 && doload) 470 printf("Loading %s ", path); 471 } else { 472 /* now attempt the raw path provided */ 473 fd = open(bm->bm_path, mode); 474 if (fd != -1 && (howto & AB_SILENT) == 0 && doload) 475 printf("Loading %s ", bm->bm_path); 476 } 477 if (!doload && fd == -1) { 478 printf("WARNING: couldn't open %s", bm->bm_path); 479 if (strcmp(bm->bm_path, path) != 0) 480 printf(" (%s)", path); 481 printf("\n"); 482 } 483 return fd; 484 } 485 486 static void 487 module_init(const char *kernel_path) 488 { 489 struct bi_modulelist_entry *bi; 490 struct stat st; 491 const char *machine; 492 char kdev[64]; 493 char *buf; 494 boot_module_t *bm; 495 size_t len; 496 off_t off; 497 int err, fd, nfail = 0; 498 499 extract_device(kernel_path, kdev, sizeof(kdev)); 500 501 switch (netbsd_elf_class) { 502 case ELFCLASS32: 503 machine = "i386"; 504 break; 505 case ELFCLASS64: 506 machine = "amd64"; 507 break; 508 default: 509 machine = "generic"; 510 break; 511 } 512 if (netbsd_version / 1000000 % 100 == 99) { 513 /* -current */ 514 snprintf(module_base, sizeof(module_base), 515 "/stand/%s/%d.%d.%d/modules", machine, 516 netbsd_version / 100000000, 517 netbsd_version / 1000000 % 100, 518 netbsd_version / 100 % 100); 519 } else if (netbsd_version != 0) { 520 /* release */ 521 snprintf(module_base, sizeof(module_base), 522 "/stand/%s/%d.%d/modules", machine, 523 netbsd_version / 100000000, 524 netbsd_version / 1000000 % 100); 525 } 526 527 /* First, see which modules are valid and calculate btinfo size */ 528 len = sizeof(struct btinfo_modulelist); 529 for (bm = boot_modules; bm; bm = bm->bm_next) { 530 fd = module_open(bm, 0, kdev, false); 531 if (fd == -1) { 532 bm->bm_len = -1; 533 ++nfail; 534 continue; 535 } 536 err = fstat(fd, &st); 537 if (err == -1 || st.st_size == -1) { 538 printf("WARNING: couldn't stat %s\n", bm->bm_path); 539 close(fd); 540 bm->bm_len = -1; 541 ++nfail; 542 continue; 543 } 544 bm->bm_len = st.st_size; 545 close(fd); 546 len += sizeof(struct bi_modulelist_entry); 547 } 548 549 /* Allocate the module list */ 550 btinfo_modulelist = alloc(len); 551 if (btinfo_modulelist == NULL) { 552 printf("WARNING: couldn't allocate module list\n"); 553 wait_sec(MODULE_WARNING_SEC); 554 return; 555 } 556 memset(btinfo_modulelist, 0, len); 557 btinfo_modulelist_size = len; 558 559 /* Fill in btinfo structure */ 560 buf = (char *)btinfo_modulelist; 561 btinfo_modulelist->num = 0; 562 off = sizeof(struct btinfo_modulelist); 563 564 for (bm = boot_modules; bm; bm = bm->bm_next) { 565 if (bm->bm_len == -1) 566 continue; 567 fd = module_open(bm, 0, kdev, true); 568 if (fd == -1) 569 continue; 570 image_end = (image_end + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1); 571 len = pread(fd, (void *)image_end, SSIZE_MAX); 572 if (len < bm->bm_len) { 573 if ((howto & AB_SILENT) != 0) 574 printf("Loading %s ", bm->bm_path); 575 printf(" FAILED\n"); 576 } else { 577 btinfo_modulelist->num++; 578 bi = (struct bi_modulelist_entry *)(buf + off); 579 off += sizeof(struct bi_modulelist_entry); 580 strncpy(bi->path, bm->bm_path, sizeof(bi->path) - 1); 581 bi->base = image_end; 582 bi->len = len; 583 bi->type = bm->bm_type == BM_TYPE_KMOD ? 584 BI_MODULE_ELF : BI_MODULE_IMAGE; 585 if ((howto & AB_SILENT) == 0) 586 printf(" \n"); 587 } 588 if (len > 0) 589 image_end += len; 590 close(fd); 591 } 592 btinfo_modulelist->endpa = image_end; 593 594 if (nfail > 0) { 595 printf("WARNING: %d module%s failed to load\n", 596 nfail, nfail == 1 ? "" : "s"); 597 #if notyet 598 wait_sec(MODULE_WARNING_SEC); 599 #endif 600 } 601 } 602 603 static void 604 userconf_init(void) 605 { 606 size_t count, len; 607 userconf_command_t *uc; 608 char *buf; 609 off_t off; 610 611 /* Calculate the userconf commands list size */ 612 count = 0; 613 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) 614 count++; 615 len = sizeof(btinfo_userconfcommands) + 616 count * sizeof(struct bi_userconfcommand); 617 618 /* Allocate the userconf commands list */ 619 btinfo_userconfcommands = alloc(len); 620 if (btinfo_userconfcommands == NULL) { 621 printf("WARNING: couldn't allocate userconf commands list\n"); 622 return; 623 } 624 memset(btinfo_userconfcommands, 0, len); 625 btinfo_userconfcommands_size = len; 626 627 /* Fill in btinfo structure */ 628 buf = (char *)btinfo_userconfcommands; 629 off = sizeof(*btinfo_userconfcommands); 630 btinfo_userconfcommands->num = 0; 631 for (uc = userconf_commands; uc != NULL; uc = uc->uc_next) { 632 struct bi_userconfcommand *bi; 633 bi = (struct bi_userconfcommand *)(buf + off); 634 strncpy(bi->text, uc->uc_text, sizeof(bi->text) - 1); 635 636 off += sizeof(*bi); 637 btinfo_userconfcommands->num++; 638 } 639 } 640 641 int 642 exec_multiboot(const char *file, char *args) 643 { 644 struct multiboot_info *mbi; 645 struct multiboot_module *mbm; 646 struct bi_modulelist_entry *bim; 647 int i, len; 648 u_long marks[MARK_MAX]; 649 u_long extmem; 650 u_long basemem; 651 char *cmdline; 652 653 mbi = alloc(sizeof(struct multiboot_info)); 654 mbi->mi_flags = MULTIBOOT_INFO_HAS_MEMORY; 655 656 if (common_load_kernel(file, &basemem, &extmem, 0, 0, marks)) 657 goto out; 658 659 mbi->mi_mem_upper = extmem; 660 mbi->mi_mem_lower = basemem; 661 662 if (args) { 663 mbi->mi_flags |= MULTIBOOT_INFO_HAS_CMDLINE; 664 len = strlen(file) + 1 + strlen(args) + 1; 665 cmdline = alloc(len); 666 snprintf(cmdline, len, "%s %s", file, args); 667 mbi->mi_cmdline = (char *) vtophys(cmdline); 668 } 669 670 /* pull in any modules if necessary */ 671 if (boot_modules_enabled) { 672 module_init(file); 673 if (btinfo_modulelist) { 674 mbm = alloc(sizeof(struct multiboot_module) * 675 btinfo_modulelist->num); 676 677 bim = (struct bi_modulelist_entry *) 678 (((char *) btinfo_modulelist) + 679 sizeof(struct btinfo_modulelist)); 680 for (i = 0; i < btinfo_modulelist->num; i++) { 681 mbm[i].mmo_start = bim->base; 682 mbm[i].mmo_end = bim->base + bim->len; 683 mbm[i].mmo_string = (char *)vtophys(bim->path); 684 mbm[i].mmo_reserved = 0; 685 bim++; 686 } 687 mbi->mi_flags |= MULTIBOOT_INFO_HAS_MODS; 688 mbi->mi_mods_count = btinfo_modulelist->num; 689 mbi->mi_mods_addr = vtophys(mbm); 690 } 691 } 692 693 #ifdef DEBUG 694 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n", marks[MARK_ENTRY], 695 marks[MARK_NSYM], marks[MARK_SYM], marks[MARK_END]); 696 #endif 697 698 699 #if 0 700 if (btinfo_symtab.nsym) { 701 mbi->mi_flags |= MULTIBOOT_INFO_HAS_ELF_SYMS; 702 mbi->mi_elfshdr_addr = marks[MARK_SYM]; 703 btinfo_symtab.nsym = marks[MARK_NSYM]; 704 btinfo_symtab.ssym = marks[MARK_SYM]; 705 btinfo_symtab.esym = marks[MARK_END]; 706 #endif 707 708 multiboot(marks[MARK_ENTRY], vtophys(mbi), 709 x86_trunc_page(mbi->mi_mem_lower*1024)); 710 panic("exec returned"); 711 712 out: 713 dealloc(mbi, 0); 714 return -1; 715 } 716 717 void 718 x86_progress(const char *fmt, ...) 719 { 720 va_list ap; 721 722 if ((howto & AB_SILENT) != 0) 723 return; 724 va_start(ap, fmt); 725 vprintf(fmt, ap); 726 va_end(ap); 727 } 728
Indexes created Thu Oct 02 14:10:14 GMT 2025