1 /* $OpenBSD: exec_i386.c,v 1.34 2011/04/26 17:33:17 jsing Exp $ */ 2 3 /* 4 * Copyright (c) 1997-1998 Michael Shalayeff 5 * Copyright (c) 1997 Tobias Weingartner 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 */ 30 31 #include <sys/param.h> 32 #include <dev/cons.h> 33 #include <stand/boot/bootarg.h> 34 #include <machine/biosvar.h> 35 #include <sys/disklabel.h> 36 #include "disk.h" 37 #include "libsa.h" 38 #include <lib/libsa/loadfile.h> 39 40 typedef void (*startfuncp)(int, int, int, int, int, int, int, int) 41 __attribute__ ((noreturn)); 42 43 char *bootmac = NULL; 44 45 void 46 run_loadfile(u_long *marks, int howto) 47 { 48 u_long entry; 49 #ifndef _TEST 50 dev_t bootdev = bootdev_dip->bootdev; 51 size_t ac = BOOTARG_LEN; 52 caddr_t av = (caddr_t)BOOTARG_OFF; 53 bios_consdev_t cd; 54 extern int com_speed; /* from bioscons.c */ 55 bios_ddb_t ddb; 56 extern int db_console; 57 bios_rootduid_t rootduid; 58 59 if (sa_cleanup != NULL) 60 (*sa_cleanup)(); 61 62 cd.consdev = cn_tab->cn_dev; 63 cd.conspeed = com_speed; 64 addbootarg(BOOTARG_CONSDEV, sizeof(cd), &cd); 65 66 if (bootmac != NULL) 67 addbootarg(BOOTARG_BOOTMAC, sizeof(bios_bootmac_t), bootmac); 68 69 if (db_console != -1) { 70 ddb.db_console = db_console; 71 addbootarg(BOOTARG_DDB, sizeof(ddb), &ddb); 72 } 73 74 bcopy(bootdev_dip->disklabel.d_uid, &rootduid.duid, sizeof(rootduid)); 75 addbootarg(BOOTARG_ROOTDUID, sizeof(rootduid), &rootduid); 76 77 /* Pass memory map to the kernel */ 78 mem_pass(); 79 80 makebootargs(av, &ac); 81 82 entry = marks[MARK_ENTRY] & 0x0fffffff; 83 84 printf("entry point at 0x%x\n", (int) entry); 85 /* stack and the gung is ok at this point, so, no need for asm setup */ 86 (*(startfuncp)entry)(howto, bootdev, BOOTARG_APIVER, 87 marks[MARK_END], extmem, cnvmem, ac, (int)av); 88 /* not reached */ 89 #endif 90 } 91