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 #if 0
 128
 129 /* register a file name  */
 130
 131 int
 132 _bfd_evax_register_filename (abfd, name)
 133      bfd *abfd;
 134      char *name;
 135 {
 136   if (PRIV(filename) != NULL)
 137     {
 138 #if EVAX_DEBUG
 139       evax_debug(3, "Second filename %s, first was %s\n", name, PRIV(filename));
 140 #endif
 141       return -1;
 142     }
 143   PRIV(filename) = strdup (name);
 144   return 0;
 145 }
 146
 147 #endif /* 0 */
 148
 149 /* write object header for bfd abfd  */
 150
 151 int
 152 _bfd_evax_write_emh (abfd)
 153      bfd *abfd;
 154 {
 155   char *name;
 156
 157 #if EVAX_DEBUG
 158   evax_debug (2, "evax_write_emh(%p)\n", abfd);
 159 #endif
 160
 161   _bfd_evax_output_alignment (abfd, 2);
 162
 163   /* MHD */
 164
 165   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_MHD);
 166   _bfd_evax_output_short (abfd, EOBJ_S_C_STRLVL);
 167   _bfd_evax_output_long (abfd, 0);
 168   _bfd_evax_output_long (abfd, 0);
 169   _bfd_evax_output_long (abfd, MAX_OUTREC_SIZE);
 170   if (bfd_get_filename (abfd) != NULL)
 171     {
 172       name = strdup (bfd_get_filename (abfd));
 173       _bfd_evax_output_counted (abfd, _bfd_evax_basename (name));
 174     }
 175   else
 176     _bfd_evax_output_counted (abfd, "NONAME");
 177   _bfd_evax_output_counted (abfd, BFD_VERSION);
 178   _bfd_evax_output_dump (abfd, (unsigned char *)_bfd_get_vms_time_string (),
 179                          17);
 180   _bfd_evax_output_fill (abfd, 0, 17);
 181   _bfd_evax_output_flush (abfd);
 182
 183   /* LMN */
 184
 185   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_LNM);
 186   _bfd_evax_output_dump (abfd, (unsigned char *)"GAS proGIS", 10);
 187   _bfd_evax_output_flush (abfd);
 188
 189   /* SRC */
 190
 191   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_SRC);
 192   if (PRIV(filename) != 0)
 193     _bfd_evax_output_dump (abfd, (unsigned char *)PRIV(filename), strlen (PRIV(filename)));
 194   else
 195     _bfd_evax_output_dump (abfd, (unsigned char *)"noname", 6);
 196   _bfd_evax_output_flush (abfd);
 197
 198   /* TTL */
 199
 200   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_TTL);
 201   _bfd_evax_output_dump (abfd, (unsigned char *)"TTL", 3);
 202   _bfd_evax_output_flush (abfd);
 203
 204   /* CPR */
 205
 206   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_CPR);
 207   _bfd_evax_output_dump (abfd,
 208                          (unsigned char *)"GNU BFD ported by Klaus Kämpf 1994-1996",
 209                          39);
 210   _bfd_evax_output_flush (abfd);
 211
 212   return 0;
 213 }
 214
 215 /*-----------------------------------------------------------------------------*/
 216
 217 /* Process EEOM record
 218    return 0 on success, -1 on error  */
 219
 220 int
 221 _bfd_evax_slurp_eeom (abfd)
 222      bfd *abfd;
 223 {
 224   unsigned char *evax_rec;
 225
 226 #if EVAX_DEBUG
 227   evax_debug(2, "EEOM\n");
 228 #endif
 229
 230   evax_rec = PRIV(evax_rec);
 231
 232   PRIV(eeom_data).eeom_l_total_lps = bfd_getl32 (evax_rec + 4);
 233   PRIV(eeom_data).eeom_b_comcod = *(evax_rec + 8);
 234   if (PRIV(eeom_data).eeom_b_comcod > 1)
 235     {
 236       (*_bfd_error_handler) ("Object module NOT error-free !\n");
 237       bfd_set_error (bfd_error_bad_value);
 238       return -1;
 239     }
 240   PRIV(eeom_data).eeom_has_transfer = false;
 241   if (PRIV(rec_size) > 10)
 242     {
 243        PRIV(eeom_data).eeom_has_transfer = true;
 244        PRIV(eeom_data).eeom_b_tfrflg = *(evax_rec + 9);
 245        PRIV(eeom_data).eeom_l_psindx = bfd_getl32 (evax_rec + 12);
 246        PRIV(eeom_data).eeom_l_tfradr = bfd_getl32 (evax_rec + 16);
 247
 248        abfd->start_address = PRIV(eeom_data).eeom_l_tfradr;
 249     }
 250   return 0;
 251 }
 252
 253
 254 /* Write eom record for bfd abfd  */
 255
 256 int
 257 _bfd_evax_write_eeom (abfd)
 258      bfd *abfd;
 259 {
 260 #if EVAX_DEBUG
 261   evax_debug (2, "evax_write_eeom(%p)\n", abfd);
 262 #endif
 263
 264   _bfd_evax_output_begin (abfd,EOBJ_S_C_EEOM, -1);
 265   _bfd_evax_output_long (abfd, (unsigned long)(PRIV(evax_linkage_index) >> 1));
 266   _bfd_evax_output_byte (abfd, 0);      /* completion code */
 267   _bfd_evax_output_byte (abfd, 0);      /* fill byte */
 268
 269   if (bfd_get_start_address (abfd) != (bfd_vma)-1)
 270     {
 271       asection *section;
 272
 273       section = bfd_get_section_by_name (abfd, ".link");
 274       if (section == 0)
 275         {
 276           bfd_set_error (bfd_error_nonrepresentable_section);
 277           return -1;
 278         }
 279       _bfd_evax_output_short (abfd, 0);
 280       _bfd_evax_output_long (abfd, (unsigned long)(section->index));
 281       _bfd_evax_output_long (abfd,
 282                              (unsigned long) bfd_get_start_address (abfd));
 283       _bfd_evax_output_long (abfd, 0);
 284     }
 285
 286   _bfd_evax_output_end (abfd);
 287   return 0;
 288 }