2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
32 #include <sys/linker.h>
34 #include <machine/bootinfo.h>
35 #include <machine/elf.h>
41 #include "bootstrap.h"
42 #include "../libi386/libi386.h"
43 #include "../btx/lib/btxv86.h"
45 extern void __exec(caddr_t addr, ...);
46 extern int bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp);
47 extern int ldr_enter(const char *kernel);
49 static int elf32_exec(struct preloaded_file *amp);
50 static int elf32_obj_exec(struct preloaded_file *amp);
52 struct file_format i386_elf = { elf32_loadfile, elf32_exec };
53 struct file_format i386_elf_obj = { elf32_obj_loadfile, elf32_obj_exec };
55 struct file_format *file_formats[] = {
62 * There is an ELF kernel and one or more ELF modules loaded.
63 * We wish to start executing the kernel image, so make such
64 * preparations as are required, and do so.
67 elf32_exec(struct preloaded_file *fp)
69 struct file_metadata *md;
71 vm_offset_t entry, bootinfop, modulep, kernend;
72 int boothowto, err, bootdev;
74 if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
76 ehdr = (Elf_Ehdr *)&(md->md_data);
79 err = bi_load(fp->f_args, &modulep, &kernend);
84 entry = ehdr->e_entry & 0xffffff;
86 printf("Start @ 0x%x ...\n", entry);
88 ldr_enter(fp->f_name);
91 __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend);
93 panic("exec returned");
97 elf32_obj_exec(struct preloaded_file *fp)