include/boot/bootdir.h

   1 /*
   2 ** Portions Copyright 2001-2004, Travis Geiselbrecht. All rights reserved.
   3 ** Distributed under the terms of the NewOS License.
   4 */
   5 /*
   6 **
   7 ** Copyright 1998 Brian J. Swetland
   8 ** All rights reserved.
   9 **
  10 ** Redistribution and use in source and binary forms, with or without
  11 ** modification, are permitted provided that the following conditions
  12 ** are met:
  13 ** 1. Redistributions of source code must retain the above copyright
  14 **    notice, this list of conditions, and the following disclaimer.
  15 ** 2. Redistributions in binary form must reproduce the above copyright
  16 **    notice, this list of conditions, and the following disclaimer in the
  17 **    documentation and/or other materials provided with the distribution.
  18 ** 3. The name of the author may not be used to endorse or promote products
  19 **    derived from this software without specific prior written permission.
  20 **
  21 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31 */
  32
  33 #ifndef _NEWOS_BOOT_H_
  34 #define _NEWOS_BOOT_H_
  35
  36 #define BOOTDIR_NAMELEN         96
  37 #define BOOTDIR_MAX_ENTRIES     128
  38 #define BOOTDIR_DIRECTORY       "SBBB/Directory"
  39
  40 typedef struct {
  41     char be_name[BOOTDIR_NAMELEN]; /* name of loaded object, zero terminated */
  42     int  be_offset;   /* offset of object relative to the start of boot_dir  */
  43     int  be_type;     /* object type designator                              */
  44     int  be_size;     /* size of loaded object (pages)                       */
  45     int  be_vsize;    /* size loaded object should occupy when mapped in     */
  46     int  be_extra0;
  47     int  be_extra1;
  48     int  be_extra2;
  49     int  be_extra3;
  50 } boot_entry;
  51
  52 typedef struct {
  53     boot_entry bd_entry[BOOTDIR_MAX_ENTRIES];
  54 } boot_dir;
  55
  56 /* void _start(uint32 mem, char *params, boot_dir *bd); */
  57
  58 #define BE_TYPE_NONE         0  /* empty entry                              */
  59 #define BE_TYPE_DIRECTORY    1  /* directory (entry 0)                      */
  60 #define BE_TYPE_BOOTSTRAP    2  /* bootstrap code object (entry 1)          */
  61 #define BE_TYPE_CODE         3  /* executable code object                   */
  62 #define BE_TYPE_DATA         4  /* raw data object                          */
  63 #define BE_TYPE_ELF32        5  /* 32bit ELF object                         */
  64 #define BE_TYPE_ELF64        6  /* 64bit ELF object                         */
  65
  66 /* for BE_TYPE_CODE */
  67 #define be_code_vaddr be_extra0 /* virtual address (rel offset 0)           */
  68 #define be_code_ventr be_extra1 /* virtual entry point (rel offset 0)       */
  69
  70 #endif
  71