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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [include/] [vms/] [lbr.h] - Blame information for rev 24

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/* Alpha VMS external format of Libraries.
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   Copyright 2010 Free Software Foundation, Inc.
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   Written by Tristan Gingold <gingold@adacore.com>, AdaCore.
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   This file is part of BFD, the Binary File Descriptor library.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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#ifndef _VMS_LBR_H
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#define _VMS_LBR_H
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/* Libray HeaDer.  */
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/* Magic numbers.  Should match the major version.  */
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#define LHD_SANEID_DCX 319232342
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#define LHD_SANEID3 233579905
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#define LHD_SANEID6 233579911
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/* Library type.  */
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#define LBR__C_TYP_UNK    0     /* Unknown / unspecified.  */
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#define LBR__C_TYP_OBJ    1     /* Vax object.  */
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#define LBR__C_TYP_MLB    2     /* Macro.  */
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#define LBR__C_TYP_HLP    3     /* Help.  */
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#define LBR__C_TYP_TXT    4     /* Text.  */
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#define LBR__C_TYP_SHSTB  5     /* Vax shareable image.  */
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#define LBR__C_TYP_NCS    6     /* NCS.  */
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#define LBR__C_TYP_EOBJ   7     /* Alpha object.  */
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#define LBR__C_TYP_ESHSTB 8     /* Alpha shareable image.  */
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#define LBR__C_TYP_IOBJ   9     /* IA-64 object.  */
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#define LBR__C_TYP_ISHSTB 10    /* IA-64 shareable image.  */
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struct vms_lhd
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{
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  /* Type of the library.  See above.  */
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  unsigned char type;
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  /* Number of indexes.  Generally 1, 2 for object libraries.  */
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  unsigned char nindex;
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  unsigned char fill_1[2];
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  /* Sanity Id.  */
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  unsigned char sanity[4];
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  /* Version.  */
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  unsigned char majorid[2];
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  unsigned char minorid[2];
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  /* Tool name.  */
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  unsigned char lbrver[32];
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  /* Create time.  */
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  unsigned char credat[8];
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  /* Update time.  */
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  unsigned char updtim[8];
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  /* Size of the MHD.  */
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  unsigned char mhdusz;
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  unsigned char idxblkf[2];     /* Unused.  */
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  unsigned char fill_2;
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  unsigned char closerror[2];
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  unsigned char spareword[2];
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  /* First free block, and number of free blocks.  */
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  unsigned char freevbn[4];
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  unsigned char freeblk[4];
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  unsigned char nextrfa[6];
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  unsigned char nextvbn[4];
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  /* Free pre-allocated index block.  */
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  unsigned char freidxblk[4];
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  unsigned char freeidx[4];
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  /* Highest pre-allocated index block and in use.  */
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  unsigned char hipreal[4];
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  unsigned char hiprusd[4];
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  /* Number of index blocks in use.  */
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  unsigned char idxblks[4];
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  /* Number of index entries.  */
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  unsigned char idxcnt[4];
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  /* Number of modules entries.  */
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  unsigned char modcnt[4];
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  unsigned char fill_3[2];
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  /* Number of module headers.  */
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  unsigned char modhdrs[4];
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  /* Overhead index pointers.  */
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  unsigned char idxovh[4];
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  /* Update history records.  */
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  unsigned char maxluhrec[2];
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  unsigned char numluhrec[2];
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  unsigned char begluhrfa[6];
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  unsigned char endluhrfa[6];
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  /* DCX map.  */
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  unsigned char dcxmapvbn[4];
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  unsigned char fill_4[4 * 13];
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};
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/* Known major ids.  */
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#define LBR_MAJORID 3           /* Alpha libraries.  */
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#define LBR_ELFMAJORID 6        /* Elf libraries (new index, new data).  */
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/* Offset of the first IDD.  */
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#define LHD_IDXDESC 196
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/* InDex Description.  */
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struct vms_idd
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{
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  unsigned char flags[2];
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  /* Max length of the key.  */
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  unsigned char keylen[2];
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  /* First index block.  */
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  unsigned char vbn[4];
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};
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/* IDD flags.  */
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#define IDD__FLAGS_ASCII 1
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#define IDD__FLAGS_LOCKED 2
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#define IDD__FLAGS_VARLENIDX 4
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#define IDD__FLAGS_NOCASECMP 8
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#define IDD__FLAGS_NOCASENTR 16
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#define IDD__FLAGS_UPCASNTRY 32
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#define IDD_LENGTH 8
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/* Index block.  */
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#define INDEXDEF__LENGTH 512
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#define INDEXDEF__BLKSIZ 500
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struct vms_indexdef
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{
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  /* Number of bytes used.  */
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  unsigned char used[2];
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  /* VBN of the parent.  */
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  unsigned char parent[4];
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  unsigned char fill_1[6];
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  /* The key field contains vms_idx/vms_elfidx structures, which are
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     simply a key (= a string) and a rfa.  */
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  unsigned char keys[INDEXDEF__BLKSIZ];
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};
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/* An offset in a file.  */
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struct vms_rfa
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{
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  /* Logical block number, 1 based.
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  unsigned char vbn[4];
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  /* Offset within the block.  */
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  unsigned char offset[2];
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};
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/* Index keys.  For version 3.  */
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struct vms_idx
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{
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  /* Offset from the start of the vbn, so minimum should be
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     DATA__DATA (ie 6).  */
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  struct vms_rfa rfa;
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  unsigned char keylen;
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  /* The length of this field is in fact keylen.  */
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  unsigned char keyname[256];
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};
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/* Index keys, for version 4 and later.  */
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struct vms_elfidx
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{
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  struct vms_rfa rfa;
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  unsigned char keylen[2];
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  unsigned char flags;
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  unsigned char keyname[256];
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};
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/* Flags of elfidx.  */
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#define ELFIDX__WEAK 0x01       /* Weak symbol.  */
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#define ELFIDX__GROUP 0x02      /* Group symbol.  */
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#define ELFIDX__LISTRFA 0x04    /* RFA field points to an LHS.  */
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#define ELFIDX__SYMESC 0x08     /* Long symbol.  */
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#define RFADEF__C_INDEX 0xffff
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/* List head structure.  That's what is pointed by rfa when LISTRFA flag
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   is set in elfidx.  */
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struct vms_lhs
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{
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  struct vms_rfa ng_g_rfa;      /* Non-group global.  */
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  struct vms_rfa ng_wk_rfa;     /* Non-group weak.  */
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  struct vms_rfa g_g_rfa;       /* Group global.  */
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  struct vms_rfa g_wk_rfa;      /* Group weak.  */
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  unsigned char flags;
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};
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/* List node structure.  Fields of LHS point to this structure.  */
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struct vms_lns
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{
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  /* Next node in the list.  */
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  struct vms_rfa nxtrfa;
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  /* Module associated with the key.  */
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  struct vms_rfa modrfa;
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};
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struct vms_datadef
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{
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  /* Number of records in this block.  */
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  unsigned char recs;
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  unsigned char fill_1;
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  /* Next vbn.  */
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  unsigned char link[4];
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  /* Data.  The first word is the record length, followed by record
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     data and a possible pad byte so that record length is always aligned.  */
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  unsigned char data[506];
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};
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#define DATA__LENGTH 512
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#define DATA__DATA 6
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/* Key name block.  This is used for keys longer than 128 bytes.  */
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struct vms_kbn
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{
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  /* Length of the key chunk.  */
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  unsigned char keylen[2];
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  /* RFA of the next chunk.  */
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  struct vms_rfa rfa;
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  /* Followed by the key chunk.  */
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};
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/* Module header.  */
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struct vms_mhd
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{
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  /* Fixed part.  */
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  unsigned char lbrflag;
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  unsigned char id;
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  unsigned char fill_1[2];
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  unsigned char refcnt[4];
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  unsigned char datim[8];
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  unsigned char objstat;
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  /* Ident or GSMATCH.  */
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  unsigned char objidlng;
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  unsigned char objid[31];
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  unsigned char pad1[3];
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  unsigned char otherefcnt[4];
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  unsigned char modsize[4];
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  unsigned char pad2[4];
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};
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#define MHD__C_MHDID 0xad       /* Value for id.  */
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#define MHD__C_MHDLEN 16        /* Fixed part length.  */
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#define MHD__C_USRDAT 16
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/* Flags for objstat.  */
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#define MHD__M_SELSRC 0x1       /* Selective search.  */
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#define MHD__M_OBJTIR 0x2
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#define MHD__M_WKSYM  0x4
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struct vms_luh
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{
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  unsigned char nxtluhblk[4];
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  unsigned char spare[2];
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  unsigned char data[506];
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};
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struct vms_luhdef
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{
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  unsigned char rechdr[2];
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  unsigned char reclen[2];
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};
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#define LUH__RECHDRLEN 4
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#define LUH__RECHDRMRK 0xabba
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#define LUH__DATAFLDLEN 506
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/* Entry in the history.  */
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struct vms_leh
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{
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  unsigned char date[8];
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  unsigned char nbr_units[2];
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  unsigned char action[2]; /* 1: delete, 2: insert, 3: replaced.  */
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  unsigned char idlen;
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  /* username
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     modules... */
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};
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#endif /* _VMS_LBR_H */

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