include/vms/eisd.h

   1 /* Alpha VMS external format of Extended Image Section Descriptor.
   2
   3    Copyright (C) 2010-2023 Free Software Foundation, Inc.
   4    Written by Tristan Gingold <gingold@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 */