1/* $Id: bootdir.h 3132 2003-05-03 03:43:30Z axeld $
2**
3** Copyright 1998 Brian J. Swetland
4** All rights reserved.
5**
6** Redistribution and use in source and binary forms, with or without
7** modification, are permitted provided that the following conditions
8** are met:
9** 1. Redistributions of source code must retain the above copyright
10**    notice, this list of conditions, and the following disclaimer.
11** 2. Redistributions in binary form must reproduce the above copyright
12**    notice, this list of conditions, and the following disclaimer in the
13**    documentation and/or other materials provided with the distribution.
14** 3. The name of the author may not be used to endorse or promote products
15**    derived from this software without specific prior written permission.
16**
17** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27*/
28#ifndef KERNEL_BOOT_BOOTDIR_H
29#define KERNEL_BOOT_BOOTDIR_H
30
31#define BOOTDIR_NAMELEN         32
32#define BOOTDIR_MAX_ENTRIES     64
33#define BOOTDIR_DIRECTORY       "SBBB/Directory"
34
35typedef struct {
36    char be_name[BOOTDIR_NAMELEN]; /* name of loaded object, zero terminated */
37    int  be_offset;   /* offset of object relative to the start of boot_dir  */
38    int  be_type;     /* object type designator                              */
39    int  be_size;     /* size of loaded object (pages)                       */
40    int  be_vsize;    /* size loaded object should occupy when mapped in     */
41    int  be_extra0;
42    int  be_extra1;
43    int  be_extra2;
44    int  be_extra3;
45} boot_entry;
46
47typedef struct {
48    boot_entry bd_entry[BOOTDIR_MAX_ENTRIES];
49} boot_dir;
50
51/* void _start(uint32 mem, char *params, boot_dir *bd); */
52
53#define BE_TYPE_NONE         0  /* empty entry                              */
54#define BE_TYPE_DIRECTORY    1  /* directory (entry 0)                      */
55#define BE_TYPE_BOOTSTRAP    2  /* bootstrap code object (entry 1)          */
56#define BE_TYPE_CODE         3  /* executable code object                   */
57#define BE_TYPE_DATA         4  /* raw data object                          */
58#define BE_TYPE_ELF32        5  /* 32bit ELF object                         */
59
60/* for BE_TYPE_CODE */
61#define be_code_vaddr be_extra0 /* virtual address (rel offset 0)           */
62#define be_code_ventr be_extra1 /* virtual entry point (rel offset 0)       */
63
64#endif	/* KERNEL_BOOT_BOOTDIR_H */
65