eisd.h revision 1.1.1.2 
1/* Alpha VMS external format of Extended Image Section Descriptor.
2
3   Copyright (C) 2010-2015 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
49struct 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