bfd/nlmswap.h

   1 /* NLM (NetWare Loadable Module) swapping routines for BFD.
   2    Copyright 1993, 2000, 2001, 2005, 2007 Free Software Foundation, Inc.
   3
   4    Written by Fred Fish @ Cygnus Support, using ELF support as the
   5    template.
   6
   7    This file is part of BFD, the Binary File Descriptor library.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  22    MA 02110-1301, USA.  */
  23
  24
  25 /* Although this is a header file, it defines functions.  It is
  26    included by NLM backends to define swapping functions that vary
  27    from one NLM to another.  The backend code must arrange for
  28    Nlm_External_xxxx to be defined appropriately, and can then include
  29    this file to get the swapping routines.
  30
  31    At the moment this is only needed for one structure, the fixed NLM
  32    file header.  */
  33
  34 /* Translate an NLM fixed length file header in external format into an NLM
  35    file header in internal format.  */
  36
  37 static void
  38 nlm_swap_fixed_header_in (bfd *abfd,
  39                           void * realsrc,
  40                           Nlm_Internal_Fixed_Header *dst)
  41 {
  42   Nlm_External_Fixed_Header *src = (Nlm_External_Fixed_Header *) realsrc;
  43
  44   memcpy (dst->signature, src->signature, NLM_SIGNATURE_SIZE);
  45   memcpy (dst->moduleName, src->moduleName, NLM_MODULE_NAME_SIZE);
  46   dst->version =
  47     H_GET_32 (abfd, src->version);
  48   dst->codeImageOffset =
  49     H_GET_32 (abfd, src->codeImageOffset);
  50   dst->codeImageSize =
  51     H_GET_32 (abfd, src->codeImageSize);
  52   dst->dataImageOffset =
  53     H_GET_32 (abfd, src->dataImageOffset);
  54   dst->dataImageSize =
  55     H_GET_32 (abfd, src->dataImageSize);
  56   dst->uninitializedDataSize =
  57     H_GET_32 (abfd, src->uninitializedDataSize);
  58   dst->customDataOffset =
  59     H_GET_32 (abfd, src->customDataOffset);
  60   dst->customDataSize =
  61     H_GET_32 (abfd, src->customDataSize);
  62   dst->moduleDependencyOffset =
  63     H_GET_32 (abfd, src->moduleDependencyOffset);
  64   dst->numberOfModuleDependencies =
  65     H_GET_32 (abfd, src->numberOfModuleDependencies);
  66   dst->relocationFixupOffset =
  67     H_GET_32 (abfd, src->relocationFixupOffset);
  68   dst->numberOfRelocationFixups =
  69     H_GET_32 (abfd, src->numberOfRelocationFixups);
  70   dst->externalReferencesOffset =
  71     H_GET_32 (abfd, src->externalReferencesOffset);
  72   dst->numberOfExternalReferences =
  73     H_GET_32 (abfd, src->numberOfExternalReferences);
  74   dst->publicsOffset =
  75     H_GET_32 (abfd, src->publicsOffset);
  76   dst->numberOfPublics =
  77     H_GET_32 (abfd, src->numberOfPublics);
  78   dst->debugInfoOffset =
  79     H_GET_32 (abfd, src->debugInfoOffset);
  80   dst->numberOfDebugRecords =
  81     H_GET_32 (abfd, src->numberOfDebugRecords);
  82   dst->codeStartOffset =
  83     H_GET_32 (abfd, src->codeStartOffset);
  84   dst->exitProcedureOffset =
  85     H_GET_32 (abfd, src->exitProcedureOffset);
  86   dst->checkUnloadProcedureOffset =
  87     H_GET_32 (abfd, src->checkUnloadProcedureOffset);
  88   dst->moduleType =
  89     H_GET_32 (abfd, src->moduleType);
  90   dst->flags =
  91     H_GET_32 (abfd, src->flags);
  92 }
  93
  94 /* Translate an NLM fixed length file header in internal format into
  95    an NLM file header in external format.  */
  96
  97 static void
  98 nlm_swap_fixed_header_out (bfd *abfd,
  99                            Nlm_Internal_Fixed_Header *src,
 100                            void * realdst)
 101 {
 102   Nlm_External_Fixed_Header *dst = (Nlm_External_Fixed_Header *) realdst;
 103
 104   memset (dst, 0, sizeof *dst);
 105   memcpy (dst->signature, src->signature, NLM_SIGNATURE_SIZE);
 106   memcpy (dst->moduleName, src->moduleName, NLM_MODULE_NAME_SIZE);
 107   H_PUT_32 (abfd, src->version,
 108             dst->version);
 109   H_PUT_32 (abfd, src->codeImageOffset,
 110             dst->codeImageOffset);
 111   H_PUT_32 (abfd, src->codeImageSize,
 112             dst->codeImageSize);
 113   H_PUT_32 (abfd, src->dataImageOffset,
 114             dst->dataImageOffset);
 115   H_PUT_32 (abfd, src->dataImageSize,
 116             dst->dataImageSize);
 117   H_PUT_32 (abfd, src->uninitializedDataSize,
 118             dst->uninitializedDataSize);
 119   H_PUT_32 (abfd, src->customDataOffset,
 120             dst->customDataOffset);
 121   H_PUT_32 (abfd, src->customDataSize,
 122             dst->customDataSize);
 123   H_PUT_32 (abfd, src->moduleDependencyOffset,
 124             dst->moduleDependencyOffset);
 125   H_PUT_32 (abfd, src->numberOfModuleDependencies,
 126             dst->numberOfModuleDependencies);
 127   H_PUT_32 (abfd, src->relocationFixupOffset,
 128             dst->relocationFixupOffset);
 129   H_PUT_32 (abfd, src->numberOfRelocationFixups,
 130             dst->numberOfRelocationFixups);
 131   H_PUT_32 (abfd, src->externalReferencesOffset,
 132             dst->externalReferencesOffset);
 133   H_PUT_32 (abfd, src->numberOfExternalReferences,
 134             dst->numberOfExternalReferences);
 135   H_PUT_32 (abfd, src->publicsOffset,
 136             dst->publicsOffset);
 137   H_PUT_32 (abfd, src->numberOfPublics,
 138             dst->numberOfPublics);
 139   H_PUT_32 (abfd, src->debugInfoOffset,
 140             dst->debugInfoOffset);
 141   H_PUT_32 (abfd, src->numberOfDebugRecords,
 142             dst->numberOfDebugRecords);
 143   H_PUT_32 (abfd, src->codeStartOffset,
 144             dst->codeStartOffset);
 145   H_PUT_32 (abfd, src->exitProcedureOffset,
 146             dst->exitProcedureOffset);
 147   H_PUT_32 (abfd, src->checkUnloadProcedureOffset,
 148             dst->checkUnloadProcedureOffset);
 149   H_PUT_32 (abfd, src->moduleType,
 150             dst->moduleType);
 151   H_PUT_32 (abfd, src->flags,
 152             dst->flags);
 153 }