1/*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30#include <sys/param.h> 31#include <sys/exec.h> 32#include <sys/linker.h> 33#include <string.h> 34#include <machine/bootinfo.h> 35#include <machine/elf.h> 36#include <stand.h> 37 38#include <efi.h> 39#include <efilib.h> 40 41#include "bootstrap.h" 42#include "../libi386/libi386.h" 43#include "../btx/lib/btxv86.h" 44 45extern void __exec(caddr_t addr, ...); 46extern int bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp); 47 48static int elf32_exec(struct preloaded_file *amp); 49static int elf32_obj_exec(struct preloaded_file *amp); 50 51struct file_format i386_elf = { elf32_loadfile, elf32_exec }; 52struct file_format i386_elf_obj = { elf32_obj_loadfile, elf32_obj_exec }; 53 54struct file_format *file_formats[] = { 55 &i386_elf, 56 &i386_elf_obj, 57 NULL 58}; 59 60/* 61 * There is an ELF kernel and one or more ELF modules loaded. 62 * We wish to start executing the kernel image, so make such 63 * preparations as are required, and do so. 64 */ 65static int 66elf32_exec(struct preloaded_file *fp) 67{ 68 struct file_metadata *md; 69 Elf_Ehdr *ehdr; 70 vm_offset_t entry, bootinfop, modulep, kernend; 71 int boothowto, err, bootdev; 72 73 if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL) 74 return(EFTYPE); 75 ehdr = (Elf_Ehdr *)&(md->md_data); 76 77 efi_time_fini(); 78 79 entry = ehdr->e_entry & 0xffffff; 80 81 printf("Start @ 0x%x ...\n", entry); 82 83 err = bi_load(fp->f_args, &modulep, &kernend); 84 if (err != 0) { 85 efi_time_init(); 86 return(err); 87 } 88 89 /* At this point we've called ExitBootServices, so we can't call 90 * printf or any other function that uses Boot Services */ 91 92 dev_cleanup(); 93 __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend); 94 95 panic("exec returned"); 96} 97 98static int 99elf32_obj_exec(struct preloaded_file *fp) 100{ 101 return (EFTYPE); 102} 103