bfd/evax-emh.c

   1 /* evax-emh.c -- BFD back-end for ALPHA EVAX (openVMS/Alpha) files.
   2    Copyright 1996, 1997 Free Software Foundation, Inc.
   3
   4    EMH record handling functions
   5    and
   6    EEOM record handling functions
   7
   8    Written by Klaus K"ampf (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 #include <ctype.h>
  27
  28 #include "bfd.h"
  29 #include "sysdep.h"
  30 #include "bfdlink.h"
  31 #include "libbfd.h"
  32
  33 #include "evax.h"
  34
  35 /*---------------------------------------------------------------------------*/
  36
  37
  38 /* Read & process emh record
  39    return 0 on success, -1 on error  */
  40
  41 int
  42 _bfd_evax_slurp_emh (abfd)
  43      bfd *abfd;
  44 {
  45   unsigned char *ptr;
  46   unsigned char *evax_rec;
  47
  48   evax_rec = PRIV(evax_rec);
  49
  50 #if EVAX_DEBUG
  51   evax_debug(2, "EMH\n");
  52 #endif
  53
  54   switch (bfd_getl16 (evax_rec + 4))
  55     {
  56
  57       case EMH_S_C_MHD:
  58         /*
  59          * module header
  60          */
  61         PRIV(emh_data).emh_b_strlvl = evax_rec[6];
  62         PRIV(emh_data).emh_l_arch1 = bfd_getl32 (evax_rec + 8);
  63         PRIV(emh_data).emh_l_arch2 = bfd_getl32 (evax_rec + 12);
  64         PRIV(emh_data).emh_l_recsiz = bfd_getl32 (evax_rec + 16);
  65         PRIV(emh_data).emh_t_name =
  66           _bfd_evax_save_counted_string ((char *)evax_rec + 20);
  67         ptr = evax_rec + 20 + evax_rec[20] + 1;
  68         PRIV(emh_data).emh_t_version =
  69           _bfd_evax_save_counted_string ((char *)ptr);
  70         ptr += *ptr + 1;
  71         PRIV(emh_data).emh_t_date =
  72           _bfd_evax_save_sized_string ((char *)ptr, 17);
  73
  74       break;
  75
  76       case EMH_S_C_LNM:
  77         /*
  78          *
  79          */
  80         PRIV(emh_data).emh_c_lnm =
  81           _bfd_evax_save_sized_string ((char *)evax_rec, PRIV(rec_length-6));
  82       break;
  83
  84       case EMH_S_C_SRC:
  85         /*
  86          *
  87          */
  88         PRIV(emh_data).emh_c_src =
  89           _bfd_evax_save_sized_string ((char *)evax_rec, PRIV(rec_length-6));
  90       break;
  91
  92       case EMH_S_C_TTL:
  93         /*
  94          *
  95          */
  96         PRIV(emh_data).emh_c_ttl =
  97           _bfd_evax_save_sized_string ((char *)evax_rec, PRIV(rec_length-6));
  98       break;
  99
 100       case EMH_S_C_CPR:
 101         /*
 102          *
 103          */
 104       break;
 105
 106       case EMH_S_C_MTC:
 107         /*
 108          *
 109          */
 110       break;
 111
 112       case EMH_S_C_GTX:
 113         /*
 114          *
 115          */
 116       break;
 117
 118       default:
 119         bfd_set_error (bfd_error_wrong_format);
 120       return -1;
 121
 122     } /* switch */
 123
 124   return 0;
 125 }
 126
 127
 128 /*-----------------------------------------------------------------------------*/
 129 /* Output routines.  */
 130
 131
 132 /* Manufacure a VMS like time on a unix based system.
 133    stolen from obj-vms.c  */
 134
 135 static unsigned char *
 136 get_vms_time_string ()
 137 {
 138   static unsigned char tbuf[18];
 139 #ifndef VMS
 140 #include <sys/types.h>
 141 #include <time.h>
 142
 143   char *pnt;
 144   time_t timeb;
 145   time (&timeb);
 146   pnt = ctime (&timeb);
 147   pnt[3] = 0;
 148   pnt[7] = 0;
 149   pnt[10] = 0;
 150   pnt[16] = 0;
 151   pnt[24] = 0;
 152   sprintf (tbuf, "%2s-%3s-%s %s", pnt + 8, pnt + 4, pnt + 20, pnt + 11);
 153 #else
 154 #include <starlet.h>
 155   struct
 156   {
 157     int Size;
 158     unsigned char *Ptr;
 159   } Descriptor;
 160   Descriptor.Size = 17;
 161   Descriptor.Ptr = tbuf;
 162   SYS$ASCTIM (0, &Descriptor, 0, 0);
 163 #endif /* not VMS */
 164
 165 #if EVAX_DEBUG
 166   evax_debug (6, "vmstimestring:'%s'\n", tbuf);
 167 #endif
 168
 169   return tbuf;
 170 }
 171
 172
 173 /* write object header for bfd abfd  */
 174
 175 int
 176 _bfd_evax_write_emh (abfd)
 177      bfd *abfd;
 178 {
 179   asymbol *symbol;
 180   int symnum;
 181   int had_case = 0;
 182   int had_file = 0;
 183
 184
 185 #if EVAX_DEBUG
 186   evax_debug (2, "evax_write_emh(%p)\n", abfd);
 187 #endif
 188
 189   _bfd_evax_output_alignment (abfd, 2);
 190
 191   /* MHD */
 192
 193   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_MHD);
 194   _bfd_evax_output_short (abfd, EOBJ_S_C_STRLVL);
 195   _bfd_evax_output_long (abfd, 0);
 196   _bfd_evax_output_long (abfd, 0);
 197   _bfd_evax_output_long (abfd, MAX_OUTREC_SIZE);
 198
 199   if (bfd_get_filename (abfd) != 0)
 200     {
 201       /* strip path and suffix information */
 202
 203       char *fname, *fout, *fptr;
 204
 205       fptr = bfd_get_filename (abfd);
 206       fname = (char *) alloca (strlen (fptr) + 1);
 207       strcpy (fname, fptr);
 208       fout = strrchr (fname, ']');
 209       if (fout == 0)
 210         fout = strchr (fname, ':');
 211       if (fout != 0)
 212         fout++;
 213       else
 214         fout = fname;
 215
 216       /* strip .obj suffix  */
 217
 218       fptr = strrchr (fname, '.');
 219       if ((fptr != 0)
 220           && (strcasecmp (fptr, ".OBJ") == 0))
 221         *fptr = 0;
 222
 223       fptr = fout;
 224       while (*fptr != 0)
 225         {
 226           if (islower (*fptr))
 227             *fptr = toupper (*fptr);
 228           fptr++;
 229           if ((*fptr == ';')
 230              || ((fptr - fout) > 31))
 231             *fptr = 0;
 232         }
 233       _bfd_evax_output_counted (abfd, fout);
 234     }
 235   else
 236     _bfd_evax_output_counted (abfd, "NONAME");
 237
 238   _bfd_evax_output_counted (abfd, BFD_VERSION);
 239   _bfd_evax_output_dump (abfd, get_vms_time_string (), 17);
 240   _bfd_evax_output_fill (abfd, 0, 17);
 241   _bfd_evax_output_flush (abfd);
 242
 243   /* LMN */
 244
 245   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_LNM);
 246   _bfd_evax_output_dump (abfd, (unsigned char *)"GAS proGIS", 10);
 247   _bfd_evax_output_flush (abfd);
 248
 249   /* SRC */
 250
 251   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_SRC);
 252
 253   for (symnum = 0; symnum < abfd->symcount; symnum++)
 254     {
 255       symbol = abfd->outsymbols[symnum];
 256
 257       if (symbol->flags & BSF_FILE)
 258         {
 259           char *s;
 260
 261           if (strncmp ((char *)symbol->name, "<CASE:", 6) == 0)
 262             {
 263               PRIV(flag_hash_long_names) = symbol->name[6] - '0';
 264               PRIV(flag_show_after_trunc) = symbol->name[7] - '0';
 265
 266               if (had_file)
 267                 break;
 268               had_case = 1;
 269               continue;
 270             }
 271
 272           _bfd_evax_output_dump (abfd, (unsigned char *)symbol->name, strlen (symbol->name));
 273           if (had_case)
 274             break;
 275           had_file = 1;
 276         }
 277     }
 278
 279   if (symnum == abfd->symcount)
 280     _bfd_evax_output_dump (abfd, (unsigned char *)"noname", 6);
 281
 282   _bfd_evax_output_flush (abfd);
 283
 284   /* TTL */
 285
 286   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_TTL);
 287   _bfd_evax_output_dump (abfd, (unsigned char *)"TTL", 3);
 288   _bfd_evax_output_flush (abfd);
 289
 290   /* CPR */
 291
 292   _bfd_evax_output_begin (abfd, EOBJ_S_C_EMH, EMH_S_C_CPR);
 293   _bfd_evax_output_dump (abfd,
 294                          (unsigned char *)"GNU BFD ported by Klaus Kämpf 1994-1996",
 295                          39);
 296   _bfd_evax_output_flush (abfd);
 297
 298   return 0;
 299 }
 300
 301 /*-----------------------------------------------------------------------------*/
 302
 303 /* Process EEOM record
 304    return 0 on success, -1 on error  */
 305
 306 int
 307 _bfd_evax_slurp_eeom (abfd)
 308      bfd *abfd;
 309 {
 310   unsigned char *evax_rec;
 311
 312 #if EVAX_DEBUG
 313   evax_debug(2, "EEOM\n");
 314 #endif
 315
 316   evax_rec = PRIV(evax_rec);
 317
 318   PRIV(eeom_data).eeom_l_total_lps = bfd_getl32 (evax_rec + 4);
 319   PRIV(eeom_data).eeom_b_comcod = *(evax_rec + 8);
 320   if (PRIV(eeom_data).eeom_b_comcod > 1)
 321     {
 322       (*_bfd_error_handler) (_("Object module NOT error-free !\n"));
 323       bfd_set_error (bfd_error_bad_value);
 324       return -1;
 325     }
 326   PRIV(eeom_data).eeom_has_transfer = false;
 327   if (PRIV(rec_size) > 10)
 328     {
 329        PRIV(eeom_data).eeom_has_transfer = true;
 330        PRIV(eeom_data).eeom_b_tfrflg = *(evax_rec + 9);
 331        PRIV(eeom_data).eeom_l_psindx = bfd_getl32 (evax_rec + 12);
 332        PRIV(eeom_data).eeom_l_tfradr = bfd_getl32 (evax_rec + 16);
 333
 334        abfd->start_address = PRIV(eeom_data).eeom_l_tfradr;
 335     }
 336   return 0;
 337 }
 338
 339
 340 /* Write eom record for bfd abfd  */
 341
 342 int
 343 _bfd_evax_write_eeom (abfd)
 344      bfd *abfd;
 345 {
 346 #if EVAX_DEBUG
 347   evax_debug (2, "evax_write_eeom(%p)\n", abfd);
 348 #endif
 349
 350   _bfd_evax_output_begin (abfd,EOBJ_S_C_EEOM, -1);
 351   _bfd_evax_output_long (abfd, (unsigned long)(PRIV(evax_linkage_index) >> 1));
 352   _bfd_evax_output_byte (abfd, 0);      /* completion code */
 353   _bfd_evax_output_byte (abfd, 0);      /* fill byte */
 354
 355   if (bfd_get_start_address (abfd) != (bfd_vma)-1)
 356     {
 357       asection *section;
 358
 359       section = bfd_get_section_by_name (abfd, ".link");
 360       if (section == 0)
 361         {
 362           bfd_set_error (bfd_error_nonrepresentable_section);
 363           return -1;
 364         }
 365       _bfd_evax_output_short (abfd, 0);
 366       _bfd_evax_output_long (abfd, (unsigned long)(section->index));
 367       _bfd_evax_output_long (abfd,
 368                              (unsigned long) bfd_get_start_address (abfd));
 369       _bfd_evax_output_long (abfd, 0);
 370     }
 371
 372   _bfd_evax_output_end (abfd);
 373   return 0;
 374 }