bfd/evax-emh.c

   1 /* evax-emh.c -- BFD back-end for ALPHA EVAX (openVMS/AXP) files.
   2    Copyright 1996 Free Software Foundation, Inc.
   3
   4    EMH record handling functions
   5    and
   6    EEOM record handling functions
   7
   8    Written by Klaus Kämpf (kkaempf@progis.de)
   9    of proGIS Softwareentwicklung, Aachen, Germany
  10
  11 This program is free software; you can redistribute it and/or modify
  12 it under the terms of the GNU General Public License as published by
  13 the Free Software Foundation; either version 2 of the License, or
  14 (at your option) any later version.
  15
  16 This program is distributed in the hope that it will be useful,
  17 but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 GNU General Public License for more details.
  20
  21 You should have received a copy of the GNU General Public License
  22 along with this program; if not, write to the Free Software
  23 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  24
  25 #include <stdio.h>
  26
  27 #include "bfd.h"
  28 #include "sysdep.h"
  29 #include "bfdlink.h"
  30 #include "libbfd.h"
  31
  32 #include "evax.h"
  33
  34 /*---------------------------------------------------------------------------*/
  35
  36
  37 /* Read & process emh record
  38    return 0 on success, -1 on error  */
  39
  40 int
  41 _bfd_evax_slurp_emh (abfd)
  42      bfd *abfd;
  43 {
  44   unsigned char *ptr;
  45   unsigned char *evax_rec;
  46
  47   evax_rec = PRIV(evax_rec);
  48
  49 #if EVAX_DEBUG
  50   evax_debug(2, "EMH\n");
  51 #endif
  52
  53   switch (bfd_getl16 (evax_rec + 4))
  54     {
  55
  56       case EMH_S_C_MHD:
  57         /*
  58          * module header
  59          */
  60         PRIV(emh_data).emh_b_strlvl = evax_rec[6];
  61         PRIV(emh_data).emh_l_arch1 = bfd_getl32 (evax_rec + 8);
  62         PRIV(emh_data).emh_l_arch2 = bfd_getl32 (evax_rec + 12);
  63         PRIV(emh_data).emh_l_recsiz = bfd_getl32 (evax_rec + 16);
  64         PRIV(emh_data).emh_t_name =
  65           _bfd_evax_save_counted_string ((char *)evax_rec + 20);
  66         ptr = evax_rec + 20 + evax_rec[20] + 1;
  67         PRIV(emh_data).emh_t_version =
  68           _bfd_evax_save_counted_string ((char *)ptr);
  69         ptr += *ptr + 1;
  70         PRIV(emh_data).emh_t_date =
  71           _bfd_evax_save_sized_string ((char *)ptr, 17);
  72
  73       break;
  74
  75       case EMH_S_C_LNM:
  76         /*
  77          *
  78          */
  79         PRIV(emh_data).emh_c_lnm =
  80           _bfd_evax_save_sized_string ((char *)evax_rec, PRIV(rec_length-6));
  81       break;
  82
  83       case EMH_S_C_SRC:
  84         /*
  85          *
  86          */
  87         PRIV(emh_data).emh_c_src =
  88           _bfd_evax_save_sized_string ((char *)evax_rec, PRIV(rec_length-6));
  89       break;
  90
  91       case EMH_S_C_TTL:
  92         /*
  93          *
  94          */
  95         PRIV(emh_data).emh_c_ttl =
  96           _bfd_evax_save_sized_string ((char *)evax_rec, PRIV(rec_length-6));
  97       break;
  98
  99       case EMH_S_C_CPR:
 100         /*
 101          *
 102          */
 103       break;
 104
 105       case EMH_S_C_MTC:
 106         /*
 107          *
 108          */
 109       break;
 110
 111       case EMH_S_C_GTX:
 112         /*
 113          *
 114          */
 115       break;
 116
 117       default:
 118         bfd_set_error (bfd_error_wrong_format);
 119       return -1;
 120
 121     } /* switch */
 122
 123   return 0;
 124 }
 125
 126
 127 /* write object header for bfd abfd  */
 128
 129 int
 130 _bfd_evax_write_emh (abfd)
 131      bfd *abfd;
 132 {
 133   char *name;
 134
 135 #if EVAX_DEBUG
 136   evax_debug (2, "evax_write_emh(%p)\n", abfd);
 137 #endif
 138
 139   _bfd_evax_output_alignment (abfd, 2);
 140
 141   /* MHD */
 142
 143   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_MHD);
 144   _bfd_evax_output_short (abfd, EOBJ_S_C_STRLVL);
 145   _bfd_evax_output_long (abfd, 0);
 146   _bfd_evax_output_long (abfd, 0);
 147   _bfd_evax_output_long (abfd, MAX_OUTREC_SIZE);
 148   if (bfd_get_filename (abfd) != NULL)
 149     {
 150       name = strdup (bfd_get_filename (abfd));
 151       _bfd_evax_output_counted (abfd, _bfd_evax_basename (name));
 152     }
 153   else
 154     _bfd_evax_output_counted (abfd, "NONAME");
 155   _bfd_evax_output_counted (abfd, BFD_VERSION);
 156   _bfd_evax_output_dump (abfd, (unsigned char *)_bfd_get_vms_time_string (),
 157                          17);
 158   _bfd_evax_output_fill (abfd, 0, 17);
 159   _bfd_evax_output_flush (abfd);
 160
 161   /* LMN */
 162
 163   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_LNM);
 164   _bfd_evax_output_dump (abfd, (unsigned char *)"GAS proGIS", 10);
 165   _bfd_evax_output_flush (abfd);
 166
 167   /* SRC */
 168
 169   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_SRC);
 170   if (PRIV(filename) != 0)
 171     _bfd_evax_output_dump (abfd, (unsigned char *)PRIV(filename), strlen (PRIV(filename)));
 172   else
 173     _bfd_evax_output_dump (abfd, (unsigned char *)"noname", 6);
 174   _bfd_evax_output_flush (abfd);
 175
 176   /* TTL */
 177
 178   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_TTL);
 179   _bfd_evax_output_dump (abfd, (unsigned char *)"TTL", 3);
 180   _bfd_evax_output_flush (abfd);
 181
 182   /* CPR */
 183
 184   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_CPR);
 185   _bfd_evax_output_dump (abfd,
 186                          (unsigned char *)"GNU BFD ported by Klaus Kämpf 1994-1996",
 187                          39);
 188   _bfd_evax_output_flush (abfd);
 189
 190   return 0;
 191 }
 192
 193 /*-----------------------------------------------------------------------------*/
 194
 195 /* Process EEOM record
 196    return 0 on success, -1 on error  */
 197
 198 int
 199 _bfd_evax_slurp_eeom (abfd)
 200      bfd *abfd;
 201 {
 202   unsigned char *evax_rec;
 203
 204 #if EVAX_DEBUG
 205   evax_debug(2, "EEOM\n");
 206 #endif
 207
 208   evax_rec = PRIV(evax_rec);
 209
 210   PRIV(eeom_data).eeom_l_total_lps = bfd_getl32 (evax_rec + 4);
 211   PRIV(eeom_data).eeom_b_comcod = *(evax_rec + 8);
 212   if (PRIV(eeom_data).eeom_b_comcod > 1)
 213     {
 214       (*_bfd_error_handler) ("Object module NOT error-free !\n");
 215       bfd_set_error (bfd_error_bad_value);
 216       return -1;
 217     }
 218   PRIV(eeom_data).eeom_has_transfer = false;
 219   if (PRIV(rec_size) > 10)
 220     {
 221        PRIV(eeom_data).eeom_has_transfer = true;
 222        PRIV(eeom_data).eeom_b_tfrflg = *(evax_rec + 9);
 223        PRIV(eeom_data).eeom_l_psindx = bfd_getl32 (evax_rec + 12);
 224        PRIV(eeom_data).eeom_l_tfradr = bfd_getl32 (evax_rec + 16);
 225
 226        abfd->start_address = PRIV(eeom_data).eeom_l_tfradr;
 227     }
 228   return 0;
 229 }
 230
 231
 232 /* Write eom record for bfd abfd  */
 233
 234 int
 235 _bfd_evax_write_eeom (abfd)
 236      bfd *abfd;
 237 {
 238 #if EVAX_DEBUG
 239   evax_debug (2, "evax_write_eeom(%p)\n", abfd);
 240 #endif
 241
 242   _bfd_evax_output_begin (abfd,EOBJ_S_C_EEOM, -1);
 243   _bfd_evax_output_long (abfd, (unsigned long)(PRIV(evax_linkage_index) >> 1));
 244   _bfd_evax_output_byte (abfd, 0);      /* completion code */
 245   _bfd_evax_output_byte (abfd, 0);      /* fill byte */
 246
 247   if (bfd_get_start_address (abfd) != (bfd_vma)-1)
 248     {
 249       asection *section;
 250
 251       section = bfd_get_section_by_name (abfd, ".link");
 252       if (section == 0)
 253         {
 254           bfd_set_error (bfd_error_nonrepresentable_section);
 255           return -1;
 256         }
 257       _bfd_evax_output_short (abfd, 0);
 258       _bfd_evax_output_long (abfd, (unsigned long)(section->index));
 259       _bfd_evax_output_long (abfd,
 260                              (unsigned long) bfd_get_start_address (abfd));
 261       _bfd_evax_output_long (abfd, 0);
 262     }
 263
 264   _bfd_evax_output_end (abfd);
 265   return 0;
 266 }