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      1 /* os9k.h  -  OS-9000 i386 module header definitions
      2    Copyright (C) 2000-2016 Free Software Foundation, Inc.
      3 
      4 This file is part of GNU CC.
      5 
      6 GNU CC is free software; you can redistribute it and/or modify
      7 it under the terms of the GNU General Public License as published by
      8 the Free Software Foundation; either version 2, or (at your option)
      9 any later version.
     10 
     11 GNU CC is distributed in the hope that it will be useful,
     12 but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 GNU General Public License for more details.
     15 
     16 You should have received a copy of the GNU General Public License
     17 along with GNU CC; see the file COPYING.  If not, write to
     18 the Free Software Foundation, 51 Franklin Street - Fifth Floor,
     19 Boston, MA 02110-1301, USA.  */
     20 
     21 #if !defined(_MODULE_H)
     23 #define _MODULE_H
     24 
     25 #define _MPF386
     26 
     27 /* Size of common header less parity field.  */
     28 #define N_M_PARITY  (sizeof(mh_com)-sizeof(unisgned short))
     29 #define OLD_M_PARITY 46
     30 #define M_PARITY N_M_PARITY
     31 
     32 #ifdef _MPF68K
     33 #define MODSYNC 0x4afc		/* Module header sync code for 680x0 processors.  */
     34 #endif
     35 
     36 #ifdef _MPF386
     37 #define MODSYNC 0x4afc		/* Module header sync code for 80386 processors.  */
     38 #endif
     39 
     40 #define MODREV	1		/* Module format revision 1.  */
     41 #define CRCCON	0x800063	/* CRC polynomial constant.  */
     42 
     43 /* Module access permission values.  */
     44 #define MP_OWNER_READ	0x0001
     45 #define MP_OWNER_WRITE	0x0002
     46 #define MP_OWNER_EXEC	0x0004
     47 #define MP_GROUP_READ	0x0010
     48 #define MP_GROUP_WRITE	0x0020
     49 #define MP_GROUP_EXEC	0x0040
     50 #define MP_WORLD_READ	0x0100
     51 #define MP_WORLD_WRITE	0x0200
     52 #define MP_WORLD_EXEC	0x0400
     53 #define MP_WORLD_ACCESS	0x0777
     54 #define MP_OWNER_MASK	0x000f
     55 #define MP_GROUP_MASK	0x00f0
     56 #define MP_WORLD_MASK	0x0f00
     57 #define MP_SYSTM_MASK	0xf000
     58 
     59 /* Module Type/Language values.  */
     60 #define MT_ANY		0
     61 #define MT_PROGRAM	0x0001
     62 #define MT_SUBROUT	0x0002
     63 #define MT_MULTI	0x0003
     64 #define MT_DATA		0x0004
     65 #define MT_TRAPLIB	0x000b
     66 #define MT_SYSTEM	0x000c
     67 #define MT_FILEMAN	0x000d
     68 #define MT_DEVDRVR	0x000e
     69 #define MT_DEVDESC	0x000f
     70 #define MT_MASK		0xff00
     71 
     72 #define ML_ANY		0
     73 #define ML_OBJECT	1
     74 #define ML_ICODE	2
     75 #define ML_PCODE	3
     76 #define ML_CCODE	4
     77 #define ML_CBLCODE	5
     78 #define ML_FRTNCODE	6
     79 #define ML_MASK		0x00ff
     80 
     81 #define mktypelang(type, lang)	(((type) << 8) | (lang))
     82 
     83 /* Module Attribute values.  */
     84 #define MA_REENT	0x80
     85 #define MA_GHOST	0x40
     86 #define MA_SUPER	0x20
     87 #define MA_MASK		0xff00
     88 #define MR_MASK		0x00ff
     89 
     90 #define mkattrevs(attr, revs)	(((attr) << 8) | (revs))
     91 
     92 #define m_user 		m_owner.grp_usr.usr
     93 #define m_group 	m_owner.grp_usr.grp
     94 #define m_group_user	m_owner.group_user
     95 
     96 /* Macro definitions for accessing module header fields.  */
     97 #define MODNAME(mod) ((u_char*)((u_char*)mod + ((Mh_com)mod)->m_name))
     98 #if 0
     99 /* Appears not to be used, and the u_int32 typedef is gone (because it
    100    conflicted with a Mach header.  */
    101 #define MODSIZE(mod) ((u_int32)((Mh_com)mod)->m_size)
    102 #endif /* 0 */
    103 #define MHCOM_BYTES_SIZE 80
    104 #define N_BADMAG(a) (((a)->a_info) != MODSYNC)
    105 
    106 typedef struct mh_com
    107 {
    108   /* Sync bytes ($4afc).  */
    109   unsigned char m_sync[2];
    110   unsigned char m_sysrev[2];	/* System revision check value.  */
    111   unsigned char m_size[4];	/* Module size.  */
    112   unsigned char m_owner[4];	/* Group/user id.  */
    113   unsigned char m_name[4];	/* Offset to module name.  */
    114   unsigned char m_access[2];	/* Access permissions.  */
    115   unsigned char m_tylan[2];	/* Type/lang.  */
    116   unsigned char m_attrev[2];	/* Rev/attr.  */
    117   unsigned char m_edit[2];	/* Edition.  */
    118   unsigned char m_needs[4];	/* Module hardware requirements flags. (reserved).  */
    119   unsigned char m_usage[4];	/* Comment string offset.  */
    120   unsigned char m_symbol[4];	/* Symbol table offset.  */
    121   unsigned char m_exec[4];	/* Offset to execution entry point.  */
    122   unsigned char m_excpt[4];	/* Offset to exception entry point.  */
    123   unsigned char m_data[4];	/* Data storage requirement.  */
    124   unsigned char m_stack[4];	/* Stack size.  */
    125   unsigned char m_idata[4];	/* Offset to initialized data.  */
    126   unsigned char m_idref[4];	/* Offset to data reference lists.  */
    127   unsigned char m_init[4];	/* Initialization routine offset.  */
    128   unsigned char m_term[4];	/* Termination routine offset.  */
    129   unsigned char m_ident[2];	/* Ident code for ident program.  */
    130   char          m_spare[8];	/* Reserved bytes.  */
    131   unsigned char m_parity[2]; 	/* Header parity.  */
    132 } mh_com,*Mh_com;
    133 
    134 /* Executable memory module.  */
    135 typedef mh_com *Mh_exec,mh_exec;
    136 
    137 /* Data memory module.  */
    138 typedef mh_com *Mh_data,mh_data;
    139 
    140 /* File manager memory module.  */
    141 typedef mh_com *Mh_fman,mh_fman;
    142 
    143 /* Device driver module.  */
    144 typedef mh_com *Mh_drvr,mh_drvr;
    145 
    146 /* Trap handler module.  */
    147 typedef	mh_com mh_trap, *Mh_trap;
    148 
    149 /* Device descriptor module.  */
    150 typedef	mh_com *Mh_dev,mh_dev;
    151 
    152 /* Configuration module.  */
    153 typedef mh_com *Mh_config, mh_config;
    154 
    155 #if 0
    156 
    157 #if !defined(_MODDIR_H)
    158 /* Go get _os_fmod (and others).  */
    159 #include <moddir.h>
    160 #endif
    161 
    162 error_code _os_crc (void *, u_int32, int *);
    163 error_code _os_datmod (char *, u_int32, u_int16 *, u_int16 *, u_int32, void **, mh_data **);
    164 error_code _os_get_moddir (void *, u_int32 *);
    165 error_code _os_initdata (mh_com *, void *);
    166 error_code _os_link (char **, mh_com **, void **, u_int16 *, u_int16 *);
    167 error_code _os_linkm (mh_com *, void **, u_int16 *, u_int16 *);
    168 error_code _os_load (char *, mh_com **, void **, u_int32, u_int16 *, u_int16 *, u_int32);
    169 error_code _os_mkmodule (char *, u_int32, u_int16 *, u_int16 *, u_int32, void **, mh_com **, u_int32);
    170 error_code _os_modaddr (void *, mh_com **);
    171 error_code _os_setcrc (mh_com *);
    172 error_code _os_slink (u_int32, char *, void **, void **, mh_com **);
    173 error_code _os_slinkm (u_int32, mh_com *, void **, void **);
    174 error_code _os_unlink (mh_com *);
    175 error_code _os_unload (char *, u_int32);
    176 error_code _os_tlink (u_int32, char *, void **, mh_trap **, void *, u_int32);
    177 error_code _os_tlinkm (u_int32, mh_com *, void **, void *, u_int32);
    178 error_code _os_iodel (mh_com *);
    179 error_code _os_vmodul (mh_com *, mh_com *, u_int32);
    180 #endif /* 0 */
    181 
    182 #endif
    183