1*22028508SToomas Soome /*
2*22028508SToomas Soome * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3*22028508SToomas Soome * All rights reserved.
4*22028508SToomas Soome *
5*22028508SToomas Soome * Redistribution and use in source and binary forms, with or without
6*22028508SToomas Soome * modification, are permitted provided that the following conditions
7*22028508SToomas Soome * are met:
8*22028508SToomas Soome * 1. Redistributions of source code must retain the above copyright
9*22028508SToomas Soome * notice, this list of conditions and the following disclaimer.
10*22028508SToomas Soome * 2. Redistributions in binary form must reproduce the above copyright
11*22028508SToomas Soome * notice, this list of conditions and the following disclaimer in the
12*22028508SToomas Soome * documentation and/or other materials provided with the distribution.
13*22028508SToomas Soome *
14*22028508SToomas Soome * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*22028508SToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*22028508SToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*22028508SToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*22028508SToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*22028508SToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*22028508SToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*22028508SToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*22028508SToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*22028508SToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*22028508SToomas Soome * SUCH DAMAGE.
25*22028508SToomas Soome */
26*22028508SToomas Soome
27*22028508SToomas Soome #include <sys/cdefs.h>
28*22028508SToomas Soome
29*22028508SToomas Soome #include <sys/param.h>
30*22028508SToomas Soome #include <sys/exec.h>
31*22028508SToomas Soome #include <sys/linker.h>
32*22028508SToomas Soome #include <string.h>
33*22028508SToomas Soome #include <machine/bootinfo.h>
34*22028508SToomas Soome #include <machine/elf.h>
35*22028508SToomas Soome #include <stand.h>
36*22028508SToomas Soome
37*22028508SToomas Soome #include "bootstrap.h"
38*22028508SToomas Soome #include "libi386.h"
39*22028508SToomas Soome #include "btxv86.h"
40*22028508SToomas Soome
41*22028508SToomas Soome static int elf32_exec(struct preloaded_file *amp);
42*22028508SToomas Soome static int elf32_obj_exec(struct preloaded_file *amp);
43*22028508SToomas Soome
44*22028508SToomas Soome struct file_format i386_elf = { elf32_loadfile, elf32_exec };
45*22028508SToomas Soome struct file_format i386_elf_obj = { elf32_obj_loadfile, elf32_obj_exec };
46*22028508SToomas Soome
47*22028508SToomas Soome /*
48*22028508SToomas Soome * There is an ELF kernel and one or more ELF modules loaded.
49*22028508SToomas Soome * We wish to start executing the kernel image, so make such
50*22028508SToomas Soome * preparations as are required, and do so.
51*22028508SToomas Soome */
52*22028508SToomas Soome static int
elf32_exec(struct preloaded_file * fp)53*22028508SToomas Soome elf32_exec(struct preloaded_file *fp)
54*22028508SToomas Soome {
55*22028508SToomas Soome struct file_metadata *md;
56*22028508SToomas Soome Elf_Ehdr *ehdr;
57*22028508SToomas Soome vm_offset_t entry, bootinfop, modulep, kernend;
58*22028508SToomas Soome int boothowto, err, bootdev;
59*22028508SToomas Soome
60*22028508SToomas Soome if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
61*22028508SToomas Soome return(EFTYPE);
62*22028508SToomas Soome ehdr = (Elf_Ehdr *)&(md->md_data);
63*22028508SToomas Soome
64*22028508SToomas Soome err = bi_load32(fp->f_args, &boothowto, &bootdev, &bootinfop, &modulep, &kernend);
65*22028508SToomas Soome if (err != 0)
66*22028508SToomas Soome return(err);
67*22028508SToomas Soome entry = ehdr->e_entry & 0xffffff;
68*22028508SToomas Soome
69*22028508SToomas Soome #ifdef DEBUG
70*22028508SToomas Soome printf("Start @ 0x%lx ...\n", entry);
71*22028508SToomas Soome #endif
72*22028508SToomas Soome
73*22028508SToomas Soome dev_cleanup();
74*22028508SToomas Soome __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend);
75*22028508SToomas Soome
76*22028508SToomas Soome panic("exec returned");
77*22028508SToomas Soome }
78*22028508SToomas Soome
79*22028508SToomas Soome static int
elf32_obj_exec(struct preloaded_file * fp __unused)80*22028508SToomas Soome elf32_obj_exec(struct preloaded_file *fp __unused)
81*22028508SToomas Soome {
82*22028508SToomas Soome return (EFTYPE);
83*22028508SToomas Soome }
84