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/* Alpha VMS external format of Extended Image Header.

   Copyright 2010 Free Software Foundation, Inc.

   Written by Tristan Gingold <gingold@adacore.com>, AdaCore.

   This file is part of BFD, the Binary File Descriptor library.

   This program 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 3 of the License, or

   (at your option) any later version.

   This program 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 this program; if not, write to the Free Software

   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,

   MA 02110-1301, USA.  */

#ifndef _VMS_EIHD_H

#define _VMS_EIHD_H

/* Extended Image Header (eihd) structure.  */

struct vms_eihd

{

  /* Version of this EIHD.  */

  unsigned char majorid[4];

  unsigned char minorid[4];

  /* Size in bytes of the header.  */

  unsigned char size[4];

  /* Byte offset to ISD (Image Section Descriptors) list.  */

  unsigned char isdoff[4];

  /* Byte offset to activation data.  */

  unsigned char activoff[4];

  /* Byte offset to symbol table and debugging data.  */

  unsigned char symdbgoff[4];

  /* Byte offset to image ident.  */

  unsigned char imgidoff[4];

  /* Byte offset to patch data.  */

  unsigned char patchoff[4];

  /* RVA of fixup info.  */

  unsigned char iafva[8];

  /* RVA of symbol vector.  */

  unsigned char symvva[8];

  /* Byte offset to version number array.  */

  unsigned char version_array_off[4];

  /* Image type.  */

  unsigned char imgtype[4];

  /* Image subtype.  */

  unsigned char subtype[4];

  /* Size in bytes of image I/O section requested.  */

  unsigned char imgiocnt[4];

  /* Nbr of channels requested.  */

  unsigned char iochancnt[4];

  /* Requested privilege mask.  */

  unsigned char privreqs[8];

  /* Number of header diskblocks.  */

  unsigned char hdrblkcnt[4];

  /* Linker produced image flags.  */

  unsigned char lnkflags[4];

  /* GBL SEC ident value for linkable image.  */

  unsigned char ident[4];

  /* SYS$K_VERSION or 0 if not linked with exec.  */

  unsigned char sysver[4];

  /* Linker match control.  */

  unsigned char matchctl;

  unsigned char fill_1[3];

  /* Size of the symbol vector in bytes.  */

  unsigned char symvect_size[4];

  /* Value of /BPAGE.  */

  unsigned char virt_mem_block_size[4];

  /* Byte offset to extended fixup data.  */

  unsigned char ext_fixup_off[4];

  /* Byte offset to no_optimize psect table.  */

  unsigned char noopt_psect_off[4];

  unsigned char fill_2[398];

  /* CODE identifies image type to MOM.  */

  unsigned char alias[2];

};

#define EIHD__K_MAJORID 3       /* Major id constant    */

#define EIHD__K_MINORID 0        /* Minor id constant    */

/* Image type.  */

#define EIHD__K_EXE             1       /* Executable image     */

#define EIHD__K_LIM             2       /* Linkable image.  */

/* Linker image flags.  */

#define EIHD__M_LNKDEBUG        0x0001  /* Full debugging requested.  */

#define EIHD__M_LNKNOTFR        0x0002  /* No first transfer address.  */

#define EIHD__M_NOP0BUFS        0x0004  /* No RMS use of P0 for image I/O.  */

#define EIHD__M_PICIMG          0x0008  /* PIC image.  */

#define EIHD__M_P0IMAGE         0x0010  /* P0 only image.  */

#define EIHD__M_DBGDMT          0x0020  /* Image header has dmt fields.  */

#define EIHD__M_INISHR          0x0040  /* Transfer array contains LNISHR.  */

#define EIHD__M_XLATED          0x0080  /* Translated image.  */

#define EIHD__M_BIND_CODE_SEC   0x0100  /* EXE sect can be put into S0.  */

#define EIHD__M_BIND_DATA_SEC   0x0200  /* DATA sect can be put into S0.  */

#define EIHD__M_MKTHREADS       0x0400  /* Multiple kernel threads.  */

#define EIHD__M_UPCALLS         0x0800  /* Upcalls enabled.  */

#define EIHD__M_OMV_READY       0x1000  /* Can be processed by OMV.  */

#define EIHD__M_EXT_BIND_SECT   0x2000  /* May be moved, using ext fixups.  */

/* Offsets of some fields.  */

#define EIHD__L_SIZE            8

#define EIHD__L_ISDOFF          12

#define EIHD__L_SYMDBGOFF       20

#define EIHD__Q_SYMVVA          40

#define EIHD__L_IMGTYPE         52

#endif /* _VMS_EIHD_H */