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Annotation of XNU/osfmk/mach/boot_info.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * @OSF_COPYRIGHT@
        !            24:  */
        !            25: /*
        !            26:  * HISTORY
        !            27:  * 
        !            28:  * Revision 1.1.1.1  1998/09/22 21:05:31  wsanchez
        !            29:  * Import of Mac OS X kernel (~semeria)
        !            30:  *
        !            31:  * Revision 1.1.1.1  1998/03/07 02:25:45  wsanchez
        !            32:  * Import of OSF Mach kernel (~mburg)
        !            33:  *
        !            34:  * Revision 1.2.16.4  1996/01/09  19:21:29  devrcs
        !            35:  *     Added bootstrap map for alpha.
        !            36:  *     This probably should be moved to some MD include file.
        !            37:  *     It's not really machine dependent, just a different
        !            38:  *     way of doing things.
        !            39:  *     [1995/12/01  19:49:04  jfraser]
        !            40:  *
        !            41:  *     Merged '64-bit safe' changes from DEC alpha port.
        !            42:  *     [1995/11/21  18:08:36  jfraser]
        !            43:  *
        !            44:  * Revision 1.2.16.3  1995/01/06  19:50:04  devrcs
        !            45:  *     mk6 CR668 - 1.3b26 merge
        !            46:  *     Added region_desc structure;
        !            47:  *     [1994/10/14  03:42:28  dwm]
        !            48:  * 
        !            49:  * Revision 1.2.16.2  1994/09/23  02:34:18  ezf
        !            50:  *     change marker to not FREE
        !            51:  *     [1994/09/22  21:39:03  ezf]
        !            52:  * 
        !            53:  * Revision 1.2.16.1  1994/06/13  20:49:19  dlb
        !            54:  *     Merge MK6 and NMK17
        !            55:  *     [1994/06/13  20:24:22  dlb]
        !            56:  * 
        !            57:  * Revision 1.2.14.1  1994/02/08  11:01:06  bernadat
        !            58:  *     Checked in NMK16_1 changes
        !            59:  *     [94/02/04            bernadat]
        !            60:  * 
        !            61:  * Revision 1.2.12.1  1993/12/23  08:56:06  bernadat
        !            62:  *     Added COFF_F.
        !            63:  *     [93/11/29            bernadat]
        !            64:  * 
        !            65:  * Revision 1.2.3.2  1993/06/24  16:14:07  gm
        !            66:  *     CR9371: Moved here from default_pager.
        !            67:  *     [1993/06/24  16:08:52  gm]
        !            68:  * 
        !            69:  * Revision 1.2.3.2  1993/06/09  02:10:53  gm
        !            70:  *     Added to OSF/1 R1.3 from NMK15.0.
        !            71:  *     [1993/06/02  20:41:54  gm]
        !            72:  * 
        !            73:  * Revision 1.2  1993/04/19  16:31:50  devrcs
        !            74:  *     Added ROSE support: we need several symbol table entries since ROSE
        !            75:  *     can have up to 3 symbol section.
        !            76:  *     [93/03/24            bruel]
        !            77:  * 
        !            78:  *     Use free copyright
        !            79:  *     [1993/03/03  12:12:37  bernadat]
        !            80:  * 
        !            81:  *     Fixed History Revision Comments
        !            82:  *     [93/02/24            bernadat]
        !            83:  * 
        !            84:  *     Created for external default pager.
        !            85:  *     [1993/02/09  15:40:42  bruel]
        !            86:  * 
        !            87:  * $EndLog$
        !            88:  */
        !            89: /* CMU_HIST */
        !            90: /*
        !            91:  * Revision 2.2  92/01/03  20:19:42  dbg
        !            92:  *     Created.
        !            93:  *     [91/09/06            dbg]
        !            94:  * 
        !            95:  */
        !            96: /* CMU_ENDHIST */
        !            97: /*
        !            98:  */
        !            99: /* 
        !           100:  * Mach Operating System
        !           101:  * Copyright (c) 1991 Carnegie Mellon University
        !           102:  * All Rights Reserved.
        !           103:  * 
        !           104:  * Permission to use, copy, modify and distribute this software and its
        !           105:  * documentation is hereby granted, provided that both the copyright
        !           106:  * notice and this permission notice appear in all copies of the
        !           107:  * software, derivative works or modified versions, and any portions
        !           108:  * thereof, and that both notices appear in supporting documentation.
        !           109:  * 
        !           110:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !           111:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !           112:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !           113:  * 
        !           114:  * Carnegie Mellon requests users of this software to return to
        !           115:  * 
        !           116:  *  Software Distribution Coordinator  or  [email protected]
        !           117:  *  School of Computer Science
        !           118:  *  Carnegie Mellon University
        !           119:  *  Pittsburgh PA 15213-3890
        !           120:  * 
        !           121:  * any improvements or extensions that they make and grant Carnegie Mellon 
        !           122:  * the rights to redistribute these changes.
        !           123:  */
        !           124: 
        !           125: #ifndef        _MACH_BOOT_INFO_H_
        !           126: #define        _MACH_BOOT_INFO_H_
        !           127: 
        !           128: #include <mach/machine/vm_types.h>
        !           129: #include <mach/vm_prot.h>
        !           130: #include <mach/boolean.h>
        !           131: 
        !           132: /*
        !           133:  * The boot loader uses several instances of the following structure to
        !           134:  * provide a description of the bootstrap task virtual address space,
        !           135:  * consisting of memory regions that need to be mapped from physical pages
        !           136:  * filled by the boot loader, or regions that need to be allocated in the
        !           137:  * new address space.
        !           138:  */
        !           139: struct region_desc {
        !           140:        vm_offset_t     addr;           /* virtual address */
        !           141:        vm_offset_t     offset;         /* offset within object */
        !           142:        vm_size_t       size;           /* size */
        !           143:        vm_prot_t       prot;           /* protection */
        !           144:        boolean_t       mapped;         /* mapped or zero-filled */
        !           145: };
        !           146: 
        !           147: #ifdef         __alpha
        !           148: typedef  long physaddr_t;
        !           149: #define NBOOT_REGIONS  5
        !           150: 
        !           151: #define TEXT   0
        !           152: #define DATA   1
        !           153: #define BSS    2
        !           154: #define STACK  3
        !           155: #define SYMS   4
        !           156: 
        !           157: struct bootstrap_map {
        !           158:        physaddr_t  boot_location;
        !           159:        long    boot_size;
        !           160:        long    boot_entry;
        !           161:        long    boot_gp_value;
        !           162:        long    boot_region_count;
        !           163:        struct region_desc boot_regions[NBOOT_REGIONS];
        !           164: };
        !           165: 
        !           166: #endif         /* __alpha */
        !           167: 
        !           168: #define        BOOT_INFO_COMPAT        1
        !           169: #if    BOOT_INFO_COMPAT
        !           170: /*
        !           171:  * Old compat code for makeboot produced images
        !           172:  */
        !           173: 
        !           174: /*
        !           175:  * Structure of Mach kernel boot file.
        !           176:  */
        !           177: #include <mach/machine/vm_types.h>
        !           178: 
        !           179: /*
        !           180:  *     A Mach kernel boot file consists of the Mach
        !           181:  *     kernel image and the bootstrap image, glued
        !           182:  *     together.
        !           183:  *
        !           184:  *     The first part of the file is a normal executable
        !           185:  *     (bootable) file: a.out, coff, or whatever.  The
        !           186:  *     text and data sizes are set to include the entire
        !           187:  *     file.  (Some machines do not allow a zero-length
        !           188:  *     data segment).
        !           189:  *
        !           190:  *     The rest of the file sits where the kernel BSS
        !           191:  *     should be.  A boot_info record describes the
        !           192:  *     sizes of the next 3 sections.  Following this
        !           193:  *     are the kernel symbol table, the bootstrap image
        !           194:  *     (including its symbol table), and the loader
        !           195:  *     information for the bootstrap image.  Each
        !           196:  *     of these sections is padded to an integer (4-byte)
        !           197:  *     boundary.
        !           198:  *
        !           199:  *     When the file is loaded into memory, the kernel
        !           200:  *     text and data segments are at their normal locations.
        !           201:  *
        !           202:  *     The boot_info structure appears at the start of
        !           203:  *     the bss (at 'edata[]'):
        !           204:  */
        !           205: 
        !           206: struct boot_info {
        !           207:        vm_size_t       sym_size;               /* size of kernel symbols */
        !           208:        vm_size_t       boot_size;              /* size of bootstrap image */
        !           209:        vm_size_t       load_info_size;         /* size of loader information
        !           210:                                                   for bootstrap image */
        !           211: };
        !           212: 
        !           213: /*
        !           214:  *     The 3 sections must be moved out of BSS for the kernel to run:
        !           215:  *
        !           216:  *     The kernel symbol table follows the BSS (at 'end[]').
        !           217:  *
        !           218:  *     The bootstrap image is on the first page boundary (machine page
        !           219:  *     size) following the kernel symbol table.
        !           220:  *
        !           221:  *     The loader information immediately follows the bootstrap image.
        !           222:  */
        !           223: 
        !           224: /*
        !           225:  *     Loader information for bootstrap image:
        !           226:  */
        !           227: 
        !           228: #define AOUT_F 1
        !           229: #define ROSE_F 2
        !           230: #define COFF_F 3
        !           231: 
        !           232: struct loader_info {
        !           233:     int         format;         /* symbol table format (A.OUT or ROSE) */  
        !           234:     vm_offset_t        text_start;     /* text start in memory */
        !           235:     vm_size_t  text_size;      /* text size */
        !           236:     vm_offset_t        text_offset;    /* text offset in file */
        !           237:     vm_offset_t        data_start;     /* data+bss start in memory */
        !           238:     vm_size_t  data_size;      /* data size */
        !           239:     vm_offset_t        data_offset;    /* data offset in file */
        !           240:     vm_size_t  bss_size;       /* BSS size */
        !           241:     vm_offset_t str_offset;     /* strings table offset in file */
        !           242:     vm_size_t   str_size;       /* strings table size */
        !           243:     vm_offset_t        sym_offset[4];  /* symbol table offset in file */
        !           244:     vm_size_t  sym_size[4];    /* symbol table size */
        !           245:     vm_offset_t        entry_1;        /* 2 words for entry address */
        !           246:     vm_offset_t        entry_2;
        !           247: } ;
        !           248: 
        !           249: #define        EX_NOT_EXECUTABLE       6000
        !           250: 
        !           251: #endif /* BOOT_INFO_COMPAT */
        !           252: 
        !           253: #endif /* _MACH_BOOT_INFO_H_ */

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