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/* os9k.h  -  OS-9000 i386 module header definitions

   Copyright 2000 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2, or (at your option)

any later version.

GNU CC is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with GNU CC; see the file COPYING.  If not, write to

the Free Software Foundation, 59 Temple Place - Suite 330,

Boston, MA 02111-1307, USA.  */

#if !defined(_MODULE_H)

#define _MODULE_H

#define _MPF386

/* Size of common header less parity field.  */

#define N_M_PARITY  (sizeof(mh_com)-sizeof(unisgned short))

#define OLD_M_PARITY 46

#define M_PARITY N_M_PARITY

#ifdef _MPF68K

#define MODSYNC 0x4afc          /* Module header sync code for 680x0 processors.  */

#endif

#ifdef _MPF386

#define MODSYNC 0x4afc          /* Module header sync code for 80386 processors.  */

#endif

#define MODREV  1               /* Module format revision 1.  */

#define CRCCON  0x800063        /* CRC polynomial constant.  */

/* Module access permission values.  */

#define MP_OWNER_READ   0x0001

#define MP_OWNER_WRITE  0x0002

#define MP_OWNER_EXEC   0x0004

#define MP_GROUP_READ   0x0010

#define MP_GROUP_WRITE  0x0020

#define MP_GROUP_EXEC   0x0040

#define MP_WORLD_READ   0x0100

#define MP_WORLD_WRITE  0x0200

#define MP_WORLD_EXEC   0x0400

#define MP_WORLD_ACCESS 0x0777

#define MP_OWNER_MASK   0x000f

#define MP_GROUP_MASK   0x00f0

#define MP_WORLD_MASK   0x0f00

#define MP_SYSTM_MASK   0xf000

/* Module Type/Language values.  */

#define MT_ANY          0

#define MT_PROGRAM      0x0001

#define MT_SUBROUT      0x0002

#define MT_MULTI        0x0003

#define MT_DATA         0x0004

#define MT_TRAPLIB      0x000b

#define MT_SYSTEM       0x000c

#define MT_FILEMAN      0x000d

#define MT_DEVDRVR      0x000e 

#define MT_DEVDESC      0x000f

#define MT_MASK         0xff00

#define ML_ANY          0

#define ML_OBJECT       1

#define ML_ICODE        2

#define ML_PCODE        3

#define ML_CCODE        4

#define ML_CBLCODE      5

#define ML_FRTNCODE     6

#define ML_MASK         0x00ff

#define mktypelang(type, lang)  (((type) << 8) | (lang))

/* Module Attribute values.  */

#define MA_REENT        0x80

#define MA_GHOST        0x40

#define MA_SUPER        0x20

#define MA_MASK         0xff00

#define MR_MASK         0x00ff

#define mkattrevs(attr, revs)   (((attr) << 8) | (revs))

#define m_user          m_owner.grp_usr.usr

#define m_group         m_owner.grp_usr.grp

#define m_group_user    m_owner.group_user

/* Macro definitions for accessing module header fields.  */

#define MODNAME(mod) ((u_char*)((u_char*)mod + ((Mh_com)mod)->m_name))

#if 0

/* Appears not to be used, and the u_int32 typedef is gone (because it

   conflicted with a Mach header.  */

#define MODSIZE(mod) ((u_int32)((Mh_com)mod)->m_size)

#endif /* 0 */

#define MHCOM_BYTES_SIZE 80

#define N_BADMAG(a) (((a).a_info) != MODSYNC)

typedef struct mh_com

{

  /* Sync bytes ($4afc).  */

  unsigned char m_sync[2];

  unsigned char m_sysrev[2];    /* System revision check value.  */

  unsigned char m_size[4];      /* Module size.  */

  unsigned char m_owner[4];     /* Group/user id.  */

  unsigned char m_name[4];      /* Offset to module name.  */

  unsigned char m_access[2];    /* Access permissions.  */

  unsigned char m_tylan[2];     /* Type/lang.  */

  unsigned char m_attrev[2];    /* Rev/attr.  */

  unsigned char m_edit[2];      /* Edition.  */

  unsigned char m_needs[4];     /* Module hardware requirements flags. (reserved).  */

  unsigned char m_usage[4];     /* Comment string offset.  */

  unsigned char m_symbol[4];    /* Symbol table offset.  */

  unsigned char m_exec[4];      /* Offset to execution entry point.  */

  unsigned char m_excpt[4];     /* Offset to exception entry point.  */

  unsigned char m_data[4];      /* Data storage requirement.  */

  unsigned char m_stack[4];     /* Stack size.  */

  unsigned char m_idata[4];     /* Offset to initialized data.  */

  unsigned char m_idref[4];     /* Offset to data reference lists.  */

  unsigned char m_init[4];      /* Initialization routine offset.  */

  unsigned char m_term[4];      /* Termination routine offset.  */

  unsigned char m_ident[2];     /* Ident code for ident program.  */

  char          m_spare[8];     /* Reserved bytes.  */

  unsigned char m_parity[2];    /* Header parity.  */

} mh_com,*Mh_com;

/* Executable memory module.  */

typedef mh_com *Mh_exec,mh_exec;

/* Data memory module.  */

typedef mh_com *Mh_data,mh_data;

/* File manager memory module.  */

typedef mh_com *Mh_fman,mh_fman;

/* Device driver module.  */

typedef mh_com *Mh_drvr,mh_drvr;

/* Trap handler module.  */

typedef mh_com mh_trap, *Mh_trap;

/* Device descriptor module.  */

typedef mh_com *Mh_dev,mh_dev;

/* Configuration module.  */

typedef mh_com *Mh_config, mh_config;

#if 0 

#if !defined(_MODDIR_H)

/* Go get _os_fmod (and others).  */

#include <moddir.h>

#endif

error_code _os_crc (void *, u_int32, int *);

error_code _os_datmod (char *, u_int32, u_int16 *, u_int16 *, u_int32, void **, mh_data **);

error_code _os_get_moddir (void *, u_int32 *);

error_code _os_initdata (mh_com *, void *);

error_code _os_link (char **, mh_com **, void **, u_int16 *, u_int16 *);

error_code _os_linkm (mh_com *, void **, u_int16 *, u_int16 *);

error_code _os_load (char *, mh_com **, void **, u_int32, u_int16 *, u_int16 *, u_int32);

error_code _os_mkmodule (char *, u_int32, u_int16 *, u_int16 *, u_int32, void **, mh_com **, u_int32);

error_code _os_modaddr (void *, mh_com **);

error_code _os_setcrc (mh_com *);

error_code _os_slink (u_int32, char *, void **, void **, mh_com **);

error_code _os_slinkm (u_int32, mh_com *, void **, void **);

error_code _os_unlink (mh_com *);

error_code _os_unload (char *, u_int32);

error_code _os_tlink (u_int32, char *, void **, mh_trap **, void *, u_int32);

error_code _os_tlinkm (u_int32, mh_com *, void **, void *, u_int32);

error_code _os_iodel (mh_com *);

error_code _os_vmodul (mh_com *, mh_com *, u_int32);

#endif /* 0 */

#endif