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      1 /* Alpha VMS external format of Extended Image Section Descriptor.
      2 
      3    Copyright (C) 2010-2014 Free Software Foundation, Inc.
      4    Written by Tristan Gingold <gingold (at) adacore.com>, AdaCore.
      5 
      6    This file is part of BFD, the Binary File Descriptor library.
      7 
      8    This program is free software; you can redistribute it and/or modify
      9    it under the terms of the GNU General Public License as published by
     10    the Free Software Foundation; either version 3 of the License, or
     11    (at your option) any later version.
     12 
     13    This program is distributed in the hope that it will be useful,
     14    but WITHOUT ANY WARRANTY; without even the implied warranty of
     15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16    GNU General Public License for more details.
     17 
     18    You should have received a copy of the GNU General Public License
     19    along with this program; if not, write to the Free Software
     20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     21    MA 02110-1301, USA.  */
     22 
     23 #ifndef _VMS_EISD_H
     24 #define _VMS_EISD_H
     25 
     26 /* Flags.  */
     27 #define EISD__M_GBL		0x0001	/* Global.  */
     28 #define EISD__M_CRF		0x0002	/* Copy on reference.  */
     29 #define EISD__M_DZRO		0x0004	/* Demand zero page.  */
     30 #define EISD__M_WRT		0x0008	/* Writable.  */
     31 #define EISD__M_INITALCODE	0x0010	/* Part of initialization code.  */
     32 #define EISD__M_BASED		0x0020	/* Isect is based.  */
     33 #define EISD__M_FIXUPVEC	0x0040	/* Isect is fixup section.  */
     34 #define EISD__M_RESIDENT	0x0080	/* Isect is memory resident.  */
     35 #define EISD__M_VECTOR		0x0100	/* Vector contained in isect.  */
     36 #define EISD__M_PROTECT		0x0200	/* Isect is protected.  */
     37 #define EISD__M_LASTCLU		0x0400	/* Last cluster.  */
     38 #define EISD__M_EXE		0x0800	/* Code isect.  */
     39 #define EISD__M_NONSHRADR	0x1000	/* Contains non-shareable data.  */
     40 #define EISD__M_QUAD_LENGTH	0x2000	/* Quad length field valid.  */
     41 #define EISD__M_ALLOC_64BIT	0x4000	/* Allocate 64-bit space.  */
     42 
     43 #define EISD__K_LEN 36
     44 #define EISD__K_LENEND 12	/* For end marker or next block.  */
     45 #define EISD__K_MAXLENGLBL 84
     46 
     47 #define EISD__K_GBLNAMLEN 44	/* Size of the field.  */
     48 
     49 struct vms_eisd
     50 {
     51   unsigned char majorid[4];
     52   unsigned char minorid[4];
     53 
     54   /* Size (in bytes) of this eisd.  */
     55   unsigned char eisdsize[4];
     56 
     57   /* Size (in bytes) of the section.  */
     58   unsigned char secsize[4];
     59 
     60   /* Virtual address of the section.  */
     61   unsigned char virt_addr[8];
     62 
     63   /* Flags.  */
     64   unsigned char flags[4];
     65 
     66   /* Base virtual block number.  */
     67   unsigned char vbn[4];
     68 
     69   /* Page fault cluster.  */
     70   unsigned char pfc;
     71 
     72   /* Linker match control.  */
     73   unsigned char matchctl;
     74 
     75   /* Section type.  */
     76   unsigned char type;
     77 
     78   unsigned char fill_1;
     79 
     80   /* End of structure for normal records.  */
     81 
     82   /* Ident for global section.  */
     83   unsigned char ident[4];
     84 
     85   /* Global name ascic.  First 8 bytes are quad length field.  */
     86   unsigned char gblnam[EISD__K_GBLNAMLEN];
     87 };
     88 
     89 /* Versions.  */
     90 #define EISD__K_MAJORID 1
     91 #define EISD__K_MINORID 1
     92 
     93 /* Match control.  */
     94 #define EISD__K_MATALL 0	/* Match always.  */
     95 #define EISD__K_MATEQU 1	/* Match if equal.  */
     96 #define EISD__K_MATLEQ 2	/* Match if less or equal.  */
     97 #define EISD__K_MATNEV 3	/* Match never.  */
     98 
     99 /* Section type.  */
    100 #define EISD__K_NORMAL 0	/* Normal program image section.  */
    101 #define EISD__K_SHRFXD 1	/* Shareable fixed section.  */
    102 #define EISD__K_PRVFXD 2	/* Private fixed section.  */
    103 #define EISD__K_SHRPIC 3	/* Shareable pic section.  */
    104 #define EISD__K_PRVPIC 4	/* Private PIC section.  */
    105 #define EISD__K_USRSTACK 253	/* User stack section.  */
    106 
    107 /* EISD offsets.  */
    108 
    109 #define EISD__L_EISDSIZE	 8
    110 #define EISD__L_SECSIZE		12
    111 #define EISD__Q_VIR_ADDR	16
    112 #define EISD__L_FLAGS		24
    113 #define EISD__L_VBN		28
    114 #define EISD__R_CONTROL		32
    115 #define EISD__L_IDENT		36
    116 #define EISD__T_GBLNAM		40
    117 
    118 #endif /* _VMS_EISD_H */
    119