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, 1999, 2000 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 #ifdef HAVE_ALLOCA_H
  37 #include <alloca.h>
  38 #endif
  39 /*---------------------------------------------------------------------------*/
  40
  41 /* Read & process emh record
  42    return 0 on success, -1 on error  */
  43
  44 int
  45 _bfd_vms_slurp_hdr (abfd, objtype)
  46      bfd *abfd;
  47      int objtype;
  48 {
  49   unsigned char *ptr;
  50   unsigned char *vms_rec;
  51   int subtype;
  52
  53   vms_rec = PRIV(vms_rec);
  54
  55 #if VMS_DEBUG
  56   vms_debug(2, "HDR/EMH\n");
  57 #endif
  58
  59   switch (objtype)
  60     {
  61       case OBJ_S_C_HDR:
  62         subtype = vms_rec[1];
  63         break;
  64       case EOBJ_S_C_EMH:
  65         subtype = bfd_getl16 (vms_rec + 4) + EVAX_OFFSET;
  66         break;
  67       default:
  68         subtype = -1;
  69     }
  70
  71 #if VMS_DEBUG
  72   vms_debug(3, "subtype %d\n", subtype);
  73 #endif
  74
  75   switch (subtype)
  76     {
  77
  78       case MHD_S_C_MHD:
  79         /*
  80          * module header
  81          */
  82         PRIV(hdr_data).hdr_b_strlvl = vms_rec[2];
  83         PRIV(hdr_data).hdr_l_recsiz = bfd_getl16 (vms_rec + 3);
  84         PRIV(hdr_data).hdr_t_name = _bfd_vms_save_counted_string (vms_rec + 5);
  85         ptr = vms_rec + 5 + vms_rec[5] + 1;
  86         PRIV(hdr_data).hdr_t_version = _bfd_vms_save_counted_string (ptr);
  87         ptr += *ptr + 1;
  88         PRIV(hdr_data).hdr_t_date = _bfd_vms_save_sized_string (ptr, 17);
  89
  90       break;
  91
  92       case MHD_S_C_LNM:
  93         /*
  94          *
  95          */
  96         PRIV(hdr_data).hdr_c_lnm = _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-2));
  97       break;
  98
  99       case MHD_S_C_SRC:
 100         /*
 101          *
 102          */
 103         PRIV(hdr_data).hdr_c_src = _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-2));
 104       break;
 105
 106       case MHD_S_C_TTL:
 107         /*
 108          *
 109          */
 110         PRIV(hdr_data).hdr_c_ttl = _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-2));
 111       break;
 112
 113       case MHD_S_C_CPR:
 114         /*
 115          *
 116          */
 117       break;
 118
 119       case MHD_S_C_MTC:
 120         /*
 121          *
 122          */
 123       break;
 124
 125       case MHD_S_C_GTX:
 126         /*
 127          *
 128          */
 129       break;
 130
 131       case EMH_S_C_MHD + EVAX_OFFSET:
 132         /*
 133          * module header
 134          */
 135         PRIV(hdr_data).hdr_b_strlvl = vms_rec[6];
 136         PRIV(hdr_data).hdr_l_arch1 = bfd_getl32 (vms_rec + 8);
 137         PRIV(hdr_data).hdr_l_arch2 = bfd_getl32 (vms_rec + 12);
 138         PRIV(hdr_data).hdr_l_recsiz = bfd_getl32 (vms_rec + 16);
 139         PRIV(hdr_data).hdr_t_name =
 140           _bfd_vms_save_counted_string (vms_rec + 20);
 141         ptr = vms_rec + 20 + vms_rec[20] + 1;
 142         PRIV(hdr_data).hdr_t_version =
 143           _bfd_vms_save_counted_string (ptr);
 144         ptr += *ptr + 1;
 145         PRIV(hdr_data).hdr_t_date =
 146           _bfd_vms_save_sized_string (ptr, 17);
 147
 148       break;
 149
 150       case EMH_S_C_LNM + EVAX_OFFSET:
 151         /*
 152          *
 153          */
 154         PRIV(hdr_data).hdr_c_lnm =
 155           _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-6));
 156       break;
 157
 158       case EMH_S_C_SRC + EVAX_OFFSET:
 159         /*
 160          *
 161          */
 162         PRIV(hdr_data).hdr_c_src =
 163           _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-6));
 164       break;
 165
 166       case EMH_S_C_TTL + EVAX_OFFSET:
 167         /*
 168          *
 169          */
 170         PRIV(hdr_data).hdr_c_ttl =
 171           _bfd_vms_save_sized_string (vms_rec, PRIV(rec_length-6));
 172       break;
 173
 174       case EMH_S_C_CPR + EVAX_OFFSET:
 175         /*
 176          *
 177          */
 178       break;
 179
 180       case EMH_S_C_MTC + EVAX_OFFSET:
 181         /*
 182          *
 183          */
 184       break;
 185
 186       case EMH_S_C_GTX + EVAX_OFFSET:
 187         /*
 188          *
 189          */
 190       break;
 191
 192       default:
 193         bfd_set_error (bfd_error_wrong_format);
 194       return -1;
 195
 196     } /* switch */
 197
 198   return 0;
 199 }
 200
 201 /*-----------------------------------------------------------------------------*/
 202 /* Output routines.  */
 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 /* write object header for bfd abfd  */
 244
 245 int
 246 _bfd_vms_write_hdr (abfd, objtype)
 247      bfd *abfd;
 248      int objtype;
 249 {
 250   asymbol *symbol;
 251   unsigned int symnum;
 252   int had_case = 0;
 253   int had_file = 0;
 254
 255 #if VMS_DEBUG
 256   vms_debug (2, "vms_write_hdr (%p)\n", abfd);
 257 #endif
 258
 259   _bfd_vms_output_alignment (abfd, 2);
 260
 261   /* MHD */
 262
 263   if (objtype == OBJ_S_C_HDR)
 264     {
 265     }
 266   else
 267     {
 268       _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_MHD);
 269       _bfd_vms_output_short (abfd, EOBJ_S_C_STRLVL);
 270       _bfd_vms_output_long (abfd, 0);
 271       _bfd_vms_output_long (abfd, 0);
 272       _bfd_vms_output_long (abfd, MAX_OUTREC_SIZE);
 273     }
 274
 275   if (bfd_get_filename (abfd) != 0)
 276     {
 277       /* strip path and suffix information */
 278
 279       char *fname, *fout, *fptr;
 280
 281       fptr = bfd_get_filename (abfd);
 282       fname = (char *) alloca (strlen (fptr) + 1);
 283       strcpy (fname, fptr);
 284       fout = strrchr (fname, ']');
 285       if (fout == 0)
 286         fout = strchr (fname, ':');
 287       if (fout != 0)
 288         fout++;
 289       else
 290         fout = fname;
 291
 292       /* strip .obj suffix  */
 293
 294       fptr = strrchr (fname, '.');
 295       if ((fptr != 0)
 296           && (strcasecmp (fptr, ".OBJ") == 0))
 297         *fptr = 0;
 298
 299       fptr = fout;
 300       while (*fptr != 0)
 301         {
 302           if (islower (*fptr))
 303             *fptr = toupper (*fptr);
 304           fptr++;
 305           if ((*fptr == ';')
 306              || ((fptr - fout) > 31))
 307             *fptr = 0;
 308         }
 309       _bfd_vms_output_counted (abfd, fout);
 310     }
 311   else
 312     _bfd_vms_output_counted (abfd, "NONAME");
 313
 314   _bfd_vms_output_counted (abfd, BFD_VERSION);
 315   _bfd_vms_output_dump (abfd, get_vms_time_string (), 17);
 316   _bfd_vms_output_fill (abfd, 0, 17);
 317   _bfd_vms_output_flush (abfd);
 318
 319   /* LMN */
 320
 321   _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_LNM);
 322   _bfd_vms_output_dump (abfd, (unsigned char *)"GAS proGIS", 10);
 323   _bfd_vms_output_flush (abfd);
 324
 325   /* SRC */
 326
 327   _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_SRC);
 328
 329   for (symnum = 0; symnum < abfd->symcount; symnum++)
 330     {
 331       symbol = abfd->outsymbols[symnum];
 332
 333       if (symbol->flags & BSF_FILE)
 334         {
 335           if (strncmp ((char *)symbol->name, "<CASE:", 6) == 0)
 336             {
 337               PRIV(flag_hash_long_names) = symbol->name[6] - '0';
 338               PRIV(flag_show_after_trunc) = symbol->name[7] - '0';
 339
 340               if (had_file)
 341                 break;
 342               had_case = 1;
 343               continue;
 344             }
 345
 346           _bfd_vms_output_dump (abfd, (unsigned char *)symbol->name, strlen (symbol->name));
 347           if (had_case)
 348             break;
 349           had_file = 1;
 350         }
 351     }
 352
 353   if (symnum == abfd->symcount)
 354     _bfd_vms_output_dump (abfd, (unsigned char *)"noname", 6);
 355
 356   _bfd_vms_output_flush (abfd);
 357
 358   /* TTL */
 359
 360   _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_TTL);
 361   _bfd_vms_output_dump (abfd, (unsigned char *)"TTL", 3);
 362   _bfd_vms_output_flush (abfd);
 363
 364   /* CPR */
 365
 366   _bfd_vms_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_CPR);
 367   _bfd_vms_output_dump (abfd,
 368                          (unsigned char *)"GNU BFD ported by Klaus Kämpf 1994-1996",
 369                          39);
 370   _bfd_vms_output_flush (abfd);
 371
 372   return 0;
 373 }
 374
 375 /*-----------------------------------------------------------------------------*/
 376
 377 /* Process EOM/EEOM record
 378    return 0 on success, -1 on error  */
 379
 380 int
 381 _bfd_vms_slurp_eom (abfd, objtype)
 382      bfd *abfd;
 383      int objtype;
 384 {
 385   unsigned char *vms_rec;
 386
 387 #if VMS_DEBUG
 388   vms_debug(2, "EOM/EEOM\n");
 389 #endif
 390
 391   vms_rec = PRIV(vms_rec);
 392
 393   if ((objtype == OBJ_S_C_EOM)
 394      || (objtype == OBJ_S_C_EOMW))
 395     {
 396     }
 397   else
 398     {
 399       PRIV(eom_data).eom_l_total_lps = bfd_getl32 (vms_rec + 4);
 400       PRIV(eom_data).eom_b_comcod = *(vms_rec + 8);
 401       if (PRIV(eom_data).eom_b_comcod > 1)
 402         {
 403           (*_bfd_error_handler) (_("Object module NOT error-free !\n"));
 404           bfd_set_error (bfd_error_bad_value);
 405           return -1;
 406         }
 407       PRIV(eom_data).eom_has_transfer = false;
 408       if (PRIV(rec_size) > 10)
 409         {
 410            PRIV(eom_data).eom_has_transfer = true;
 411            PRIV(eom_data).eom_b_tfrflg = *(vms_rec + 9);
 412            PRIV(eom_data).eom_l_psindx = bfd_getl32 (vms_rec + 12);
 413            PRIV(eom_data).eom_l_tfradr = bfd_getl32 (vms_rec + 16);
 414
 415            abfd->start_address = PRIV(eom_data).eom_l_tfradr;
 416         }
 417     }
 418   return 0;
 419 }
 420
 421 /* Write eom record for bfd abfd  */
 422
 423 int
 424 _bfd_vms_write_eom (abfd, objtype)
 425      bfd *abfd;
 426      int objtype;
 427 {
 428 #if VMS_DEBUG
 429   vms_debug (2, "vms_write_eom (%p, %d)\n", abfd, objtype);
 430 #endif
 431
 432   _bfd_vms_output_begin (abfd, objtype, -1);
 433   _bfd_vms_output_long (abfd, (unsigned long) (PRIV(vms_linkage_index) >> 1));
 434   _bfd_vms_output_byte (abfd, 0);       /* completion code */
 435   _bfd_vms_output_byte (abfd, 0);       /* fill byte */
 436
 437   if (bfd_get_start_address (abfd) != (bfd_vma)-1)
 438     {
 439       asection *section;
 440
 441       section = bfd_get_section_by_name (abfd, ".link");
 442       if (section == 0)
 443         {
 444           bfd_set_error (bfd_error_nonrepresentable_section);
 445           return -1;
 446         }
 447       _bfd_vms_output_short (abfd, 0);
 448       _bfd_vms_output_long (abfd, (unsigned long) (section->index));
 449       _bfd_vms_output_long (abfd,
 450                              (unsigned long) bfd_get_start_address (abfd));
 451       _bfd_vms_output_long (abfd, 0);
 452     }
 453
 454   _bfd_vms_output_end (abfd);
 455   return 0;
 456 }