1*479ab7f0SSascha Wildner /*-
2*479ab7f0SSascha Wildner * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3*479ab7f0SSascha Wildner * All rights reserved.
4*479ab7f0SSascha Wildner *
5*479ab7f0SSascha Wildner * Redistribution and use in source and binary forms, with or without
6*479ab7f0SSascha Wildner * modification, are permitted provided that the following conditions
7*479ab7f0SSascha Wildner * are met:
8*479ab7f0SSascha Wildner * 1. Redistributions of source code must retain the above copyright
9*479ab7f0SSascha Wildner * notice, this list of conditions and the following disclaimer.
10*479ab7f0SSascha Wildner * 2. Redistributions in binary form must reproduce the above copyright
11*479ab7f0SSascha Wildner * notice, this list of conditions and the following disclaimer in the
12*479ab7f0SSascha Wildner * documentation and/or other materials provided with the distribution.
13*479ab7f0SSascha Wildner *
14*479ab7f0SSascha Wildner * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*479ab7f0SSascha Wildner * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*479ab7f0SSascha Wildner * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*479ab7f0SSascha Wildner * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*479ab7f0SSascha Wildner * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*479ab7f0SSascha Wildner * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*479ab7f0SSascha Wildner * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*479ab7f0SSascha Wildner * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*479ab7f0SSascha Wildner * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*479ab7f0SSascha Wildner * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*479ab7f0SSascha Wildner * SUCH DAMAGE.
25*479ab7f0SSascha Wildner *
26*479ab7f0SSascha Wildner * $FreeBSD: src/sys/boot/i386/libi386/elf32_freebsd.c,v 1.13 2003/08/25 23:28:31 obrien Exp $
27*479ab7f0SSascha Wildner */
28*479ab7f0SSascha Wildner
29*479ab7f0SSascha Wildner #define __ELF_WORD_SIZE 32
30*479ab7f0SSascha Wildner #include <sys/param.h>
31*479ab7f0SSascha Wildner #include <sys/exec.h>
32*479ab7f0SSascha Wildner #include <sys/linker.h>
33*479ab7f0SSascha Wildner #include <string.h>
34*479ab7f0SSascha Wildner #include <machine/bootinfo.h>
35*479ab7f0SSascha Wildner #include <machine/elf.h>
36*479ab7f0SSascha Wildner #include <stand.h>
37*479ab7f0SSascha Wildner
38*479ab7f0SSascha Wildner #include "bootstrap.h"
39*479ab7f0SSascha Wildner #include "libi386.h"
40*479ab7f0SSascha Wildner #include "btxv86.h"
41*479ab7f0SSascha Wildner
42*479ab7f0SSascha Wildner static int elf32_exec(struct preloaded_file *amp);
43*479ab7f0SSascha Wildner static int elf32_obj_exec(struct preloaded_file *amp);
44*479ab7f0SSascha Wildner
45*479ab7f0SSascha Wildner struct file_format i386_elf = { elf32_loadfile, elf32_exec };
46*479ab7f0SSascha Wildner struct file_format i386_elf_obj = { elf32_obj_loadfile, elf32_obj_exec };
47*479ab7f0SSascha Wildner
48*479ab7f0SSascha Wildner /*
49*479ab7f0SSascha Wildner * There is an ELF kernel and one or more ELF modules loaded.
50*479ab7f0SSascha Wildner * We wish to start executing the kernel image, so make such
51*479ab7f0SSascha Wildner * preparations as are required, and do so.
52*479ab7f0SSascha Wildner */
53*479ab7f0SSascha Wildner static int
elf32_exec(struct preloaded_file * fp)54*479ab7f0SSascha Wildner elf32_exec(struct preloaded_file *fp)
55*479ab7f0SSascha Wildner {
56*479ab7f0SSascha Wildner struct file_metadata *md;
57*479ab7f0SSascha Wildner Elf_Ehdr *ehdr;
58*479ab7f0SSascha Wildner vm_offset_t entry, bootinfop, modulep, kernend;
59*479ab7f0SSascha Wildner int boothowto, err, bootdev;
60*479ab7f0SSascha Wildner
61*479ab7f0SSascha Wildner if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
62*479ab7f0SSascha Wildner return(EFTYPE); /* XXX actually EFUCKUP */
63*479ab7f0SSascha Wildner ehdr = (Elf_Ehdr *)&(md->md_data);
64*479ab7f0SSascha Wildner
65*479ab7f0SSascha Wildner err = bi_load32(fp->f_args, &boothowto, &bootdev, &bootinfop, &modulep, &kernend);
66*479ab7f0SSascha Wildner if (err != 0)
67*479ab7f0SSascha Wildner return(err);
68*479ab7f0SSascha Wildner entry = ehdr->e_entry & 0xffffff;
69*479ab7f0SSascha Wildner
70*479ab7f0SSascha Wildner #ifdef DEBUG
71*479ab7f0SSascha Wildner printf("Start @ 0x%lx ...\n", entry);
72*479ab7f0SSascha Wildner #endif
73*479ab7f0SSascha Wildner
74*479ab7f0SSascha Wildner dev_cleanup();
75*479ab7f0SSascha Wildner __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend);
76*479ab7f0SSascha Wildner
77*479ab7f0SSascha Wildner panic("exec returned");
78*479ab7f0SSascha Wildner }
79*479ab7f0SSascha Wildner
80*479ab7f0SSascha Wildner static int
elf32_obj_exec(struct preloaded_file * fp)81*479ab7f0SSascha Wildner elf32_obj_exec(struct preloaded_file *fp)
82*479ab7f0SSascha Wildner {
83*479ab7f0SSascha Wildner return (EFTYPE);
84*479ab7f0SSascha Wildner }
85