18eef2ab6SToomas Soome /*
2199767f8SToomas Soome * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3199767f8SToomas Soome * All rights reserved.
4199767f8SToomas Soome *
5199767f8SToomas Soome * Redistribution and use in source and binary forms, with or without
6199767f8SToomas Soome * modification, are permitted provided that the following conditions
7199767f8SToomas Soome * are met:
8199767f8SToomas Soome * 1. Redistributions of source code must retain the above copyright
9199767f8SToomas Soome * notice, this list of conditions and the following disclaimer.
10199767f8SToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
11199767f8SToomas Soome * notice, this list of conditions and the following disclaimer in the
12199767f8SToomas Soome * documentation and/or other materials provided with the distribution.
13199767f8SToomas Soome *
14199767f8SToomas Soome * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15199767f8SToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16199767f8SToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17199767f8SToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18199767f8SToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19199767f8SToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20199767f8SToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21199767f8SToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22199767f8SToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23199767f8SToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24199767f8SToomas Soome * SUCH DAMAGE.
25199767f8SToomas Soome */
26199767f8SToomas Soome
27199767f8SToomas Soome #include <sys/cdefs.h>
28199767f8SToomas Soome
29199767f8SToomas Soome #include <sys/param.h>
30199767f8SToomas Soome #include <sys/exec.h>
31199767f8SToomas Soome #include <sys/linker.h>
32199767f8SToomas Soome #include <string.h>
33199767f8SToomas Soome #include <machine/bootinfo.h>
34199767f8SToomas Soome #include <machine/elf.h>
35199767f8SToomas Soome #include <stand.h>
36199767f8SToomas Soome
37199767f8SToomas Soome #include "bootstrap.h"
38199767f8SToomas Soome #include "libi386.h"
39199767f8SToomas Soome #include "btxv86.h"
40199767f8SToomas Soome
41199767f8SToomas Soome static int elf32_exec(struct preloaded_file *amp);
42199767f8SToomas Soome static int elf32_obj_exec(struct preloaded_file *amp);
43199767f8SToomas Soome
44199767f8SToomas Soome struct file_format i386_elf = { elf32_loadfile, elf32_exec };
45199767f8SToomas Soome struct file_format i386_elf_obj = { elf32_obj_loadfile, elf32_obj_exec };
46199767f8SToomas Soome
47199767f8SToomas Soome /*
48*55fea89dSDan Cross * There is an ELF kernel and one or more ELF modules loaded.
49*55fea89dSDan Cross * We wish to start executing the kernel image, so make such
50199767f8SToomas Soome * preparations as are required, and do so.
51199767f8SToomas Soome */
52199767f8SToomas Soome static int
elf32_exec(struct preloaded_file * fp)53199767f8SToomas Soome elf32_exec(struct preloaded_file *fp)
54199767f8SToomas Soome {
55199767f8SToomas Soome struct file_metadata *md;
56199767f8SToomas Soome Elf_Ehdr *ehdr;
57199767f8SToomas Soome vm_offset_t entry, bootinfop, modulep, kernend;
58199767f8SToomas Soome int boothowto, err, bootdev;
59199767f8SToomas Soome
60199767f8SToomas Soome if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
61199767f8SToomas Soome return(EFTYPE);
62199767f8SToomas Soome ehdr = (Elf_Ehdr *)&(md->md_data);
63199767f8SToomas Soome
64199767f8SToomas Soome err = bi_load32(fp->f_args, &boothowto, &bootdev, &bootinfop, &modulep, &kernend);
65199767f8SToomas Soome if (err != 0)
66199767f8SToomas Soome return(err);
67199767f8SToomas Soome entry = ehdr->e_entry & 0xffffff;
68199767f8SToomas Soome
69199767f8SToomas Soome #ifdef DEBUG
70199767f8SToomas Soome printf("Start @ 0x%lx ...\n", entry);
71199767f8SToomas Soome #endif
72199767f8SToomas Soome
73199767f8SToomas Soome dev_cleanup();
74199767f8SToomas Soome __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend);
75199767f8SToomas Soome
76199767f8SToomas Soome panic("exec returned");
77199767f8SToomas Soome }
78199767f8SToomas Soome
79199767f8SToomas Soome static int
elf32_obj_exec(struct preloaded_file * fp __unused)808eef2ab6SToomas Soome elf32_obj_exec(struct preloaded_file *fp __unused)
81199767f8SToomas Soome {
82199767f8SToomas Soome return (EFTYPE);
83199767f8SToomas Soome }
84