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 /*-----------------------------------------------------------------------------*/
 128 /* Output routines.  */
 129
 130
 131 /* Manufacure a VMS like time on a unix based system.
 132    stolen from obj-vms.c  */
 133
 134 static unsigned char *
 135 get_vms_time_string ()
 136 {
 137   static unsigned char tbuf[18];
 138 #ifndef VMS
 139 #include <sys/types.h>
 140 #include <time.h>
 141
 142   char *pnt;
 143   time_t timeb;
 144   time (&timeb);
 145   pnt = ctime (&timeb);
 146   pnt[3] = 0;
 147   pnt[7] = 0;
 148   pnt[10] = 0;
 149   pnt[16] = 0;
 150   pnt[24] = 0;
 151   sprintf (tbuf, "%2s-%3s-%s %s", pnt + 8, pnt + 4, pnt + 20, pnt + 11);
 152 #else
 153 #include <starlet.h>
 154   struct
 155   {
 156     int Size;
 157     unsigned char *Ptr;
 158   } Descriptor;
 159   Descriptor.Size = 17;
 160   Descriptor.Ptr = tbuf;
 161   sys$asctim (0, &Descriptor, 0, 0);
 162 #endif /* not VMS */
 163
 164 #if EVAX_DEBUG
 165   evax_debug (6, "vmstimestring:'%s'\n", tbuf);
 166 #endif
 167
 168   return tbuf;
 169 }
 170
 171
 172 /* write object header for bfd abfd  */
 173
 174 int
 175 _bfd_evax_write_emh (abfd)
 176      bfd *abfd;
 177 {
 178   asymbol *symbol;
 179   int symnum;
 180   int had_case = 0;
 181   int had_file = 0;
 182
 183
 184 #if EVAX_DEBUG
 185   evax_debug (2, "evax_write_emh(%p)\n", abfd);
 186 #endif
 187
 188   _bfd_evax_output_alignment (abfd, 2);
 189
 190   /* MHD */
 191
 192   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_MHD);
 193   _bfd_evax_output_short (abfd, EOBJ_S_C_STRLVL);
 194   _bfd_evax_output_long (abfd, 0);
 195   _bfd_evax_output_long (abfd, 0);
 196   _bfd_evax_output_long (abfd, MAX_OUTREC_SIZE);
 197
 198   if (bfd_get_filename (abfd) != 0)
 199     _bfd_evax_output_counted (abfd, bfd_get_filename (abfd));
 200   else
 201     _bfd_evax_output_counted (abfd, "NONAME");
 202
 203   _bfd_evax_output_counted (abfd, BFD_VERSION);
 204   _bfd_evax_output_dump (abfd, get_vms_time_string (), 17);
 205   _bfd_evax_output_fill (abfd, 0, 17);
 206   _bfd_evax_output_flush (abfd);
 207
 208   /* LMN */
 209
 210   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_LNM);
 211   _bfd_evax_output_dump (abfd, (unsigned char *)"GAS proGIS", 10);
 212   _bfd_evax_output_flush (abfd);
 213
 214   /* SRC */
 215
 216   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_SRC);
 217
 218   for (symnum = 0; symnum < abfd->symcount; symnum++)
 219     {
 220       symbol = abfd->outsymbols[symnum];
 221
 222       if (symbol->flags & BSF_FILE)
 223         {
 224           char *s;
 225
 226           if (strncmp ((char *)symbol->name, "<CASE:", 6) == 0)
 227             {
 228               PRIV(flag_hash_long_names) = symbol->name[6] - '0';
 229               PRIV(flag_show_after_trunc) = symbol->name[7] - '0';
 230               PRIV(flag_no_hash_mixed_case) = symbol->name[8] - '0';
 231               PRIV(vms_name_mapping) = symbol->name[9] - '0';
 232
 233               if (had_file)
 234                 break;
 235               had_case = 1;
 236               continue;
 237             }
 238
 239           _bfd_evax_output_dump (abfd, (char *)symbol->name, strlen (symbol->name));
 240           if (had_case)
 241             break;
 242           had_file = 1;
 243         }
 244     }
 245
 246   if (symnum == abfd->symcount)
 247     _bfd_evax_output_dump (abfd, "noname", 6);
 248
 249   _bfd_evax_output_flush (abfd);
 250
 251   /* TTL */
 252
 253   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_TTL);
 254   _bfd_evax_output_dump (abfd, (unsigned char *)"TTL", 3);
 255   _bfd_evax_output_flush (abfd);
 256
 257   /* CPR */
 258
 259   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_CPR);
 260   _bfd_evax_output_dump (abfd,
 261                          (unsigned char *)"GNU BFD ported by Klaus Kämpf 1994-1996",
 262                          39);
 263   _bfd_evax_output_flush (abfd);
 264
 265   return 0;
 266 }
 267
 268 /*-----------------------------------------------------------------------------*/
 269
 270 /* Process EEOM record
 271    return 0 on success, -1 on error  */
 272
 273 int
 274 _bfd_evax_slurp_eeom (abfd)
 275      bfd *abfd;
 276 {
 277   unsigned char *evax_rec;
 278
 279 #if EVAX_DEBUG
 280   evax_debug(2, "EEOM\n");
 281 #endif
 282
 283   evax_rec = PRIV(evax_rec);
 284
 285   PRIV(eeom_data).eeom_l_total_lps = bfd_getl32 (evax_rec + 4);
 286   PRIV(eeom_data).eeom_b_comcod = *(evax_rec + 8);
 287   if (PRIV(eeom_data).eeom_b_comcod > 1)
 288     {
 289       (*_bfd_error_handler) ("Object module NOT error-free !\n");
 290       bfd_set_error (bfd_error_bad_value);
 291       return -1;
 292     }
 293   PRIV(eeom_data).eeom_has_transfer = false;
 294   if (PRIV(rec_size) > 10)
 295     {
 296        PRIV(eeom_data).eeom_has_transfer = true;
 297        PRIV(eeom_data).eeom_b_tfrflg = *(evax_rec + 9);
 298        PRIV(eeom_data).eeom_l_psindx = bfd_getl32 (evax_rec + 12);
 299        PRIV(eeom_data).eeom_l_tfradr = bfd_getl32 (evax_rec + 16);
 300
 301        abfd->start_address = PRIV(eeom_data).eeom_l_tfradr;
 302     }
 303   return 0;
 304 }
 305
 306
 307 /* Write eom record for bfd abfd  */
 308
 309 int
 310 _bfd_evax_write_eeom (abfd)
 311      bfd *abfd;
 312 {
 313 #if EVAX_DEBUG
 314   evax_debug (2, "evax_write_eeom(%p)\n", abfd);
 315 #endif
 316
 317   _bfd_evax_output_begin (abfd,EOBJ_S_C_EEOM, -1);
 318   _bfd_evax_output_long (abfd, (unsigned long)(PRIV(evax_linkage_index) >> 1));
 319   _bfd_evax_output_byte (abfd, 0);      /* completion code */
 320   _bfd_evax_output_byte (abfd, 0);      /* fill byte */
 321
 322   if (bfd_get_start_address (abfd) != (bfd_vma)-1)
 323     {
 324       asection *section;
 325
 326       section = bfd_get_section_by_name (abfd, ".link");
 327       if (section == 0)
 328         {
 329           bfd_set_error (bfd_error_nonrepresentable_section);
 330           return -1;
 331         }
 332       _bfd_evax_output_short (abfd, 0);
 333       _bfd_evax_output_long (abfd, (unsigned long)(section->index));
 334       _bfd_evax_output_long (abfd,
 335                              (unsigned long) bfd_get_start_address (abfd));
 336       _bfd_evax_output_long (abfd, 0);
 337     }
 338
 339   _bfd_evax_output_end (abfd);
 340   return 0;
 341 }