bfd/vms-hdr.c

   1 /* vms-hdr.c -- BFD back-end for VMS/VAX (openVMS/VAX) and
   2    EVAX (openVMS/Alpha) files.
   3    Copyright 1996, 1997, 1998 Free Software Foundation, Inc.
   4
   5    HDR record handling functions
   6    EMH record handling functions
   7    and
   8    EOM record handling functions
   9    EEOM record handling functions
  10
  11    Written by Klaus K"ampf (kkaempf@rmi.de)
  12
  13 This program is free software; you can redistribute it and/or modify
  14 it under the terms of the GNU General Public License as published by
  15 the Free Software Foundation; either version 2 of the License, or
  16 (at your option) any later version.
  17
  18 This program is distributed in the hope that it will be useful,
  19 but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 GNU General Public License for more details.
  22
  23 You should have received a copy of the GNU General Public License
  24 along with this program; if not, write to the Free Software
  25 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  26
  27 #include <ctype.h>
  28
  29 #include "bfd.h"
  30 #include "sysdep.h"
  31 #include "bfdlink.h"
  32 #include "libbfd.h"
  33
  34 #include "vms.h"
  35
  36 /*---------------------------------------------------------------------------*/
  37
  38
  39 /* Read & process emh record
  40    return 0 on success, -1 on error  */
  41
  42 int
  43 _bfd_vms_slurp_hdr (abfd, objtype)
  44      bfd *abfd;
  45      int objtype;
  46 {
  47   unsigned char *ptr;
  48   unsigned char *vms_rec;
  49   int subtype;
  50
  51   vms_rec = PRIV(vms_rec);
  52
  53 #if VMS_DEBUG
  54   vms_debug(2, "HDR/EMH\n");
  55 #endif
  56
  57   switch (objtype)
  58     {
  59       case OBJ_S_C_HDR:
  60         subtype = vms_rec[1];
  61         break;
  62       case EOBJ_S_C_EMH:
  63         subtype = bfd_getl16 (vms_rec + 4) + EVAX_OFFSET;
  64         break;
  65       default:
  66         subtype = -1;
  67     }
  68
  69 #if VMS_DEBUG
  70   vms_debug(3, "subtype %d\n", subtype);
  71 #endif
  72
  73   switch (subtype)
  74     {
  75
  76       case MHD_S_C_MHD:
  77         /*
  78          * module header
  79          */
  80         PRIV(hdr_data).hdr_b_strlvl = vms_rec[2];
  81         PRIV(hdr_data).hdr_l_recsiz = bfd_getl16 (vms_rec + 3);
  82         PRIV(hdr_data).hdr_t_name = _bfd_vms_save_counted_string (vms_rec + 5);
  83         ptr = vms_rec + 5 + vms_rec[5] + 1;
  84         PRIV(hdr_data).hdr_t_version = _bfd_vms_save_counted_string (ptr);
  85         ptr += *ptr + 1;
  86         PRIV(hdr_data).hdr_t_date = _bfd_vms_save_sized_string (ptr, 17);
  87
  88       break;
  89
  90       case MHD_S_C_LNM:
  91         /*
  92          *
  93          */
  94         PRIV(hdr_data).hdr_c_lnm = _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-2));
  95       break;
  96
  97       case MHD_S_C_SRC:
  98         /*
  99          *
 100          */
 101         PRIV(hdr_data).hdr_c_src = _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-2));
 102       break;
 103
 104       case MHD_S_C_TTL:
 105         /*
 106          *
 107          */
 108         PRIV(hdr_data).hdr_c_ttl = _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-2));
 109       break;
 110
 111       case MHD_S_C_CPR:
 112         /*
 113          *
 114          */
 115       break;
 116
 117       case MHD_S_C_MTC:
 118         /*
 119          *
 120          */
 121       break;
 122
 123       case MHD_S_C_GTX:
 124         /*
 125          *
 126          */
 127       break;
 128
 129       case EMH_S_C_MHD + EVAX_OFFSET:
 130         /*
 131          * module header
 132          */
 133         PRIV(hdr_data).hdr_b_strlvl = vms_rec[6];
 134         PRIV(hdr_data).hdr_l_arch1 = bfd_getl32 (vms_rec + 8);
 135         PRIV(hdr_data).hdr_l_arch2 = bfd_getl32 (vms_rec + 12);
 136         PRIV(hdr_data).hdr_l_recsiz = bfd_getl32 (vms_rec + 16);
 137         PRIV(hdr_data).hdr_t_name =
 138           _bfd_vms_save_counted_string (vms_rec + 20);
 139         ptr = vms_rec + 20 + vms_rec[20] + 1;
 140         PRIV(hdr_data).hdr_t_version =
 141           _bfd_vms_save_counted_string (ptr);
 142         ptr += *ptr + 1;
 143         PRIV(hdr_data).hdr_t_date =
 144           _bfd_vms_save_sized_string (ptr, 17);
 145
 146       break;
 147
 148       case EMH_S_C_LNM + EVAX_OFFSET:
 149         /*
 150          *
 151          */
 152         PRIV(hdr_data).hdr_c_lnm =
 153           _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-6));
 154       break;
 155
 156       case EMH_S_C_SRC + EVAX_OFFSET:
 157         /*
 158          *
 159          */
 160         PRIV(hdr_data).hdr_c_src =
 161           _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-6));
 162       break;
 163
 164       case EMH_S_C_TTL + EVAX_OFFSET:
 165         /*
 166          *
 167          */
 168         PRIV(hdr_data).hdr_c_ttl =
 169           _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-6));
 170       break;
 171
 172       case EMH_S_C_CPR + EVAX_OFFSET:
 173         /*
 174          *
 175          */
 176       break;
 177
 178       case EMH_S_C_MTC + EVAX_OFFSET:
 179         /*
 180          *
 181          */
 182       break;
 183
 184       case EMH_S_C_GTX + EVAX_OFFSET:
 185         /*
 186          *
 187          */
 188       break;
 189
 190       default:
 191         bfd_set_error (bfd_error_wrong_format);
 192       return -1;
 193
 194     } /* switch */
 195
 196   return 0;
 197 }
 198
 199
 200 /*-----------------------------------------------------------------------------*/
 201 /* Output routines.  */
 202
 203
 204 /* Manufacure a VMS like time on a unix based system.
 205    stolen from obj-vms.c  */
 206
 207 static unsigned char *
 208 get_vms_time_string ()
 209 {
 210   static unsigned char tbuf[18];
 211 #ifndef VMS
 212 #include <time.h>
 213
 214   char *pnt;
 215   time_t timeb;
 216   time (&timeb);
 217   pnt = ctime (&timeb);
 218   pnt[3] = 0;
 219   pnt[7] = 0;
 220   pnt[10] = 0;
 221   pnt[16] = 0;
 222   pnt[24] = 0;
 223   sprintf (tbuf, "%2s-%3s-%s %s", pnt + 8, pnt + 4, pnt + 20, pnt + 11);
 224 #else
 225 #include <starlet.h>
 226   struct
 227   {
 228     int Size;
 229     unsigned char *Ptr;
 230   } Descriptor;
 231   Descriptor.Size = 17;
 232   Descriptor.Ptr = tbuf;
 233   SYS$ASCTIM (0, &Descriptor, 0, 0);
 234 #endif /* not VMS */
 235
 236 #if VMS_DEBUG
 237   vms_debug (6, "vmstimestring:'%s'\n", tbuf);
 238 #endif
 239
 240   return tbuf;
 241 }
 242
 243
 244 /* write object header for bfd abfd  */
 245
 246 int
 247 _bfd_vms_write_hdr (abfd, objtype)
 248      bfd *abfd;
 249      int objtype;
 250 {
 251   asymbol *symbol;
 252   int symnum;
 253   int had_case = 0;
 254   int had_file = 0;
 255
 256
 257 #if VMS_DEBUG
 258   vms_debug (2, "vms_write_hdr (%p)\n", abfd);
 259 #endif
 260
 261   _bfd_vms_output_alignment (abfd, 2);
 262
 263   /* MHD */
 264
 265   if (objtype == OBJ_S_C_HDR)
 266     {
 267     }
 268   else
 269     {
 270       _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_MHD);
 271       _bfd_vms_output_short (abfd, EOBJ_S_C_STRLVL);
 272       _bfd_vms_output_long (abfd, 0);
 273       _bfd_vms_output_long (abfd, 0);
 274       _bfd_vms_output_long (abfd, MAX_OUTREC_SIZE);
 275     }
 276
 277   if (bfd_get_filename (abfd) != 0)
 278     {
 279       /* strip path and suffix information */
 280
 281       char *fname, *fout, *fptr;
 282
 283       fptr = bfd_get_filename (abfd);
 284       fname = (char *) alloca (strlen (fptr) + 1);
 285       strcpy (fname, fptr);
 286       fout = strrchr (fname, ']');
 287       if (fout == 0)
 288         fout = strchr (fname, ':');
 289       if (fout != 0)
 290         fout++;
 291       else
 292         fout = fname;
 293
 294       /* strip .obj suffix  */
 295
 296       fptr = strrchr (fname, '.');
 297       if ((fptr != 0)
 298           && (strcasecmp (fptr, ".OBJ") == 0))
 299         *fptr = 0;
 300
 301       fptr = fout;
 302       while (*fptr != 0)
 303         {
 304           if (islower (*fptr))
 305             *fptr = toupper (*fptr);
 306           fptr++;
 307           if ((*fptr == ';')
 308              || ((fptr - fout) > 31))
 309             *fptr = 0;
 310         }
 311       _bfd_vms_output_counted (abfd, fout);
 312     }
 313   else
 314     _bfd_vms_output_counted (abfd, "NONAME");
 315
 316   _bfd_vms_output_counted (abfd, BFD_VERSION);
 317   _bfd_vms_output_dump (abfd, get_vms_time_string (), 17);
 318   _bfd_vms_output_fill (abfd, 0, 17);
 319   _bfd_vms_output_flush (abfd);
 320
 321   /* LMN */
 322
 323   _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_LNM);
 324   _bfd_vms_output_dump (abfd, (unsigned char *)"GAS proGIS", 10);
 325   _bfd_vms_output_flush (abfd);
 326
 327   /* SRC */
 328
 329   _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_SRC);
 330
 331   for (symnum = 0; symnum < abfd->symcount; symnum++)
 332     {
 333       symbol = abfd->outsymbols[symnum];
 334
 335       if (symbol->flags & BSF_FILE)
 336         {
 337           char *s;
 338
 339           if (strncmp ((char *)symbol->name, "<CASE:", 6) == 0)
 340             {
 341               PRIV(flag_hash_long_names) = symbol->name[6] - '0';
 342               PRIV(flag_show_after_trunc) = symbol->name[7] - '0';
 343
 344               if (had_file)
 345                 break;
 346               had_case = 1;
 347               continue;
 348             }
 349
 350           _bfd_vms_output_dump (abfd, (unsigned char *)symbol->name, strlen (symbol->name));
 351           if (had_case)
 352             break;
 353           had_file = 1;
 354         }
 355     }
 356
 357   if (symnum == abfd->symcount)
 358     _bfd_vms_output_dump (abfd, (unsigned char *)"noname", 6);
 359
 360   _bfd_vms_output_flush (abfd);
 361
 362   /* TTL */
 363
 364   _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_TTL);
 365   _bfd_vms_output_dump (abfd, (unsigned char *)"TTL", 3);
 366   _bfd_vms_output_flush (abfd);
 367
 368   /* CPR */
 369
 370   _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_CPR);
 371   _bfd_vms_output_dump (abfd,
 372                          (unsigned char *)"GNU BFD ported by Klaus Kämpf 1994-1996",
 373                          39);
 374   _bfd_vms_output_flush (abfd);
 375
 376   return 0;
 377 }
 378
 379 /*-----------------------------------------------------------------------------*/
 380
 381 /* Process EOM/EEOM record
 382    return 0 on success, -1 on error  */
 383
 384 int
 385 _bfd_vms_slurp_eom (abfd, objtype)
 386      bfd *abfd;
 387      int objtype;
 388 {
 389   unsigned char *vms_rec;
 390
 391 #if VMS_DEBUG
 392   vms_debug(2, "EOM/EEOM\n");
 393 #endif
 394
 395   vms_rec = PRIV(vms_rec);
 396
 397   if ((objtype == OBJ_S_C_EOM)
 398      || (objtype == OBJ_S_C_EOMW))
 399     {
 400     }
 401   else
 402     {
 403       PRIV(eom_data).eom_l_total_lps = bfd_getl32 (vms_rec + 4);
 404       PRIV(eom_data).eom_b_comcod = *(vms_rec + 8);
 405       if (PRIV(eom_data).eom_b_comcod > 1)
 406         {
 407           (*_bfd_error_handler) (_("Object module NOT error-free !\n"));
 408           bfd_set_error (bfd_error_bad_value);
 409           return -1;
 410         }
 411       PRIV(eom_data).eom_has_transfer = false;
 412       if (PRIV(rec_size) > 10)
 413         {
 414            PRIV(eom_data).eom_has_transfer = true;
 415            PRIV(eom_data).eom_b_tfrflg = *(vms_rec + 9);
 416            PRIV(eom_data).eom_l_psindx = bfd_getl32 (vms_rec + 12);
 417            PRIV(eom_data).eom_l_tfradr = bfd_getl32 (vms_rec + 16);
 418
 419            abfd->start_address = PRIV(eom_data).eom_l_tfradr;
 420         }
 421     }
 422   return 0;
 423 }
 424
 425
 426 /* Write eom record for bfd abfd  */
 427
 428 int
 429 _bfd_vms_write_eom (abfd, objtype)
 430      bfd *abfd;
 431      int objtype;
 432 {
 433 #if VMS_DEBUG
 434   vms_debug (2, "vms_write_eom (%p, %d)\n", abfd, objtype);
 435 #endif
 436
 437   _bfd_vms_output_begin (abfd, objtype, -1);
 438   _bfd_vms_output_long (abfd, (unsigned long)(PRIV(vms_linkage_index) >> 1));
 439   _bfd_vms_output_byte (abfd, 0);       /* completion code */
 440   _bfd_vms_output_byte (abfd, 0);       /* fill byte */
 441
 442   if (bfd_get_start_address (abfd) != (bfd_vma)-1)
 443     {
 444       asection *section;
 445
 446       section = bfd_get_section_by_name (abfd, ".link");
 447       if (section == 0)
 448         {
 449           bfd_set_error (bfd_error_nonrepresentable_section);
 450           return -1;
 451         }
 452       _bfd_vms_output_short (abfd, 0);
 453       _bfd_vms_output_long (abfd, (unsigned long)(section->index));
 454       _bfd_vms_output_long (abfd,
 455                              (unsigned long) bfd_get_start_address (abfd));
 456       _bfd_vms_output_long (abfd, 0);
 457     }
 458
 459   _bfd_vms_output_end (abfd);
 460   return 0;
 461 }