Home | History | Annotate | Download | only in nlm
      1 /* NLM (NetWare Loadable Module) support for BFD.
      2    Copyright (C) 1993-2014 Free Software Foundation, Inc.
      3 
      4    Written by Fred Fish @ Cygnus Support
      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 /* This file is part of NLM support for BFD, and contains the portions
     24    that describe how NLM is represented externally by the BFD library.
     25    I.E. it describes the in-file representation of NLM.  It requires
     26    the nlm/common.h file which contains the portions that are common to
     27    both the internal and external representations.
     28 
     29    Note that an NLM header consists of three parts:
     30 
     31    (1)	A fixed length header that has specific fields of known length,
     32 	at specific offsets in the file.
     33 
     34    (2)  A variable length header that has specific fields in a specific
     35         order, but some fields may be variable length.
     36 
     37    (3)	A auxiliary header that has various optional fields in no specific
     38         order.  There is no way to identify the end of the auxiliary headers
     39 	except by finding a header without a recognized 'stamp'.
     40 
     41    The exact format of the fixed length header unfortunately varies
     42    from one NLM target to another, due to padding.  Each target
     43    defines the correct external format in a separate header file.  */
     44 
     45 /* NLM Header.  */
     46 
     47 /* The version header is one of the optional auxiliary headers and
     48    follows the fixed length and variable length NLM headers.  */
     49 
     50 typedef struct nlmNAME(external_version_header)
     51 {
     52 
     53   /* The header is recognized by "VeRsIoN#" in the stamp field. */
     54   char stamp[8];
     55 
     56   unsigned char majorVersion[NLM_TARGET_LONG_SIZE];
     57 
     58   unsigned char minorVersion[NLM_TARGET_LONG_SIZE];
     59 
     60   unsigned char revision[NLM_TARGET_LONG_SIZE];
     61 
     62   unsigned char year[NLM_TARGET_LONG_SIZE];
     63 
     64   unsigned char month[NLM_TARGET_LONG_SIZE];
     65 
     66   unsigned char day[NLM_TARGET_LONG_SIZE];
     67 
     68 } NlmNAME(External_Version_Header);
     69 
     70 
     71 typedef struct nlmNAME(external_copyright_header)
     72 {
     73 
     74   /* The header is recognized by "CoPyRiGhT=" in the stamp field. */
     75 
     76   char stamp[10];
     77 
     78   unsigned char copyrightMessageLength[1];
     79 
     80   /* There is a variable length field here called 'copyrightMessage'
     81      that is the length specified by copyrightMessageLength. */
     82 
     83 } NlmNAME(External_Copyright_Header);
     84 
     85 
     86 typedef struct nlmNAME(external_extended_header)
     87 {
     88 
     89   /* The header is recognized by "MeSsAgEs" in the stamp field. */
     90 
     91   char stamp[8];
     92 
     93   unsigned char languageID[NLM_TARGET_LONG_SIZE];
     94 
     95   unsigned char messageFileOffset[NLM_TARGET_LONG_SIZE];
     96 
     97   unsigned char messageFileLength[NLM_TARGET_LONG_SIZE];
     98 
     99   unsigned char messageCount[NLM_TARGET_LONG_SIZE];
    100 
    101   unsigned char helpFileOffset[NLM_TARGET_LONG_SIZE];
    102 
    103   unsigned char helpFileLength[NLM_TARGET_LONG_SIZE];
    104 
    105   unsigned char RPCDataOffset[NLM_TARGET_LONG_SIZE];
    106 
    107   unsigned char RPCDataLength[NLM_TARGET_LONG_SIZE];
    108 
    109   unsigned char sharedCodeOffset[NLM_TARGET_LONG_SIZE];
    110 
    111   unsigned char sharedCodeLength[NLM_TARGET_LONG_SIZE];
    112 
    113   unsigned char sharedDataOffset[NLM_TARGET_LONG_SIZE];
    114 
    115   unsigned char sharedDataLength[NLM_TARGET_LONG_SIZE];
    116 
    117   unsigned char sharedRelocationFixupOffset[NLM_TARGET_LONG_SIZE];
    118 
    119   unsigned char sharedRelocationFixupCount[NLM_TARGET_LONG_SIZE];
    120 
    121   unsigned char sharedExternalReferenceOffset[NLM_TARGET_LONG_SIZE];
    122 
    123   unsigned char sharedExternalReferenceCount[NLM_TARGET_LONG_SIZE];
    124 
    125   unsigned char sharedPublicsOffset[NLM_TARGET_LONG_SIZE];
    126 
    127   unsigned char sharedPublicsCount[NLM_TARGET_LONG_SIZE];
    128 
    129   unsigned char sharedDebugRecordOffset[NLM_TARGET_LONG_SIZE];
    130 
    131   unsigned char sharedDebugRecordCount[NLM_TARGET_LONG_SIZE];
    132 
    133   unsigned char sharedInitializationOffset[NLM_TARGET_ADDRESS_SIZE];
    134 
    135   unsigned char SharedExitProcedureOffset[NLM_TARGET_ADDRESS_SIZE];
    136 
    137   unsigned char productID[NLM_TARGET_LONG_SIZE];
    138 
    139   unsigned char reserved0[NLM_TARGET_LONG_SIZE];
    140 
    141   unsigned char reserved1[NLM_TARGET_LONG_SIZE];
    142 
    143   unsigned char reserved2[NLM_TARGET_LONG_SIZE];
    144 
    145   unsigned char reserved3[NLM_TARGET_LONG_SIZE];
    146 
    147   unsigned char reserved4[NLM_TARGET_LONG_SIZE];
    148 
    149   unsigned char reserved5[NLM_TARGET_LONG_SIZE];
    150 
    151 } NlmNAME(External_Extended_Header);
    152 
    153 
    154 typedef struct nlmNAME(external_custom_header)
    155 {
    156 
    157   /* The header is recognized by "CuStHeAd" in the stamp field. */
    158   char stamp[8];
    159 
    160   /* Length of this header.  */
    161   unsigned char length[NLM_TARGET_LONG_SIZE];
    162 
    163   /* Offset to data.  */
    164   unsigned char dataOffset[NLM_TARGET_LONG_SIZE];
    165 
    166   /* Length of data.  */
    167   unsigned char dataLength[NLM_TARGET_LONG_SIZE];
    168 
    169   /* Stamp for this customer header--we recognize "CyGnUsEx".  */
    170   char dataStamp[8];
    171 
    172 } NlmNAME(External_Custom_Header);
    173