1 /* vms-gsd.c -- BFD back-end for VAX (openVMS/VAX) and 2 EVAX (openVMS/Alpha) files. 3 Copyright 1996, 1997, 1998, 1999 Free Software Foundation Inc. 4 5 go and read the openVMS linker manual (esp. appendix B) 6 if you don't know what's going on here :-) 7 8 Written by Klaus K"ampf (kkaempf@rmi.de) 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 2 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 23 24 25 #include <ctype.h> 26 27 #include "bfd.h" 28 #include "sysdep.h" 29 #include "bfdlink.h" 30 #include "libbfd.h" 31 32 #include "vms.h" 33 34 /*-----------------------------------------------------------------------------*/ 35 36 /* typical sections for vax object files */ 37 38 #define VAX_CODE_NAME "$CODE" 39 #define VAX_DATA_NAME "$DATA" 40 #define VAX_ADDRESS_DATA_NAME "$ADDRESS_DATA" 41 42 /* typical sections for evax object files */ 43 44 #define EVAX_ABS_NAME "$ABS$" 45 #define EVAX_CODE_NAME "$CODE$" 46 #define EVAX_LINK_NAME "$LINK$" 47 #define EVAX_DATA_NAME "$DATA$" 48 #define EVAX_BSS_NAME "$BSS$" 49 #define EVAX_READONLYADDR_NAME "$READONLY_ADDR$" 50 #define EVAX_READONLY_NAME "$READONLY$" 51 #define EVAX_LITERAL_NAME "$LITERAL$" 52 #define EVAX_COMMON_NAME "$COMMON$" 53 #define EVAX_LOCAL_NAME "$LOCAL$" 54 55 struct sec_flags_struct { 56 char *name; /* name of section */ 57 int vflags_always; 58 flagword flags_always; /* flags we set always */ 59 int vflags_hassize; 60 flagword flags_hassize; /* flags we set if the section has a size > 0 */ 61 }; 62 63 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible */ 64 65 static struct sec_flags_struct vax_section_flags[] = { 66 { VAX_CODE_NAME, 67 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD), 68 (SEC_CODE), 69 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD), 70 (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 71 { VAX_DATA_NAME, 72 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT), 73 (SEC_DATA), 74 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT), 75 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 76 { VAX_ADDRESS_DATA_NAME, 77 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD), 78 (SEC_DATA|SEC_READONLY), 79 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD), 80 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 81 { NULL, 82 (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT), 83 (SEC_DATA), 84 (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT), 85 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) } 86 }; 87 88 89 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible */ 90 91 static struct sec_flags_struct evax_section_flags[] = { 92 { EVAX_ABS_NAME, 93 (EGPS_S_V_SHR), 94 (SEC_DATA), 95 (EGPS_S_V_SHR), 96 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 97 { EVAX_CODE_NAME, 98 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE), 99 (SEC_CODE), 100 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE), 101 (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 102 { EVAX_LITERAL_NAME, 103 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD), 104 (SEC_DATA|SEC_READONLY), 105 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD), 106 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 107 { EVAX_LINK_NAME, 108 (EGPS_S_V_REL|EGPS_S_V_RD), 109 (SEC_DATA|SEC_READONLY), 110 (EGPS_S_V_REL|EGPS_S_V_RD), 111 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 112 { EVAX_DATA_NAME, 113 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD), 114 (SEC_DATA), 115 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 116 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 117 { EVAX_BSS_NAME, 118 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD), 119 (SEC_NO_FLAGS), 120 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD), 121 (SEC_IN_MEMORY|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 122 { EVAX_READONLYADDR_NAME, 123 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD), 124 (SEC_DATA|SEC_READONLY), 125 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD), 126 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 127 { EVAX_READONLY_NAME, 128 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD), 129 (SEC_DATA|SEC_READONLY), 130 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD), 131 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 132 { EVAX_LOCAL_NAME, 133 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 134 (SEC_DATA), 135 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 136 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 137 { NULL, 138 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 139 (SEC_DATA), 140 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 141 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) } 142 }; 143 144 /* Retrieve bfd section flags by name and size */ 145 146 static flagword 147 vms_secflag_by_name (abfd, section_flags, name, size) 148 bfd *abfd; 149 struct sec_flags_struct *section_flags; 150 char *name; 151 int size; 152 { 153 int i = 0; 154 155 while (section_flags[i].name != NULL) 156 { 157 if ((PRIV(is_vax)? 158 strcasecmp (name, section_flags[i].name): 159 strcmp (name, section_flags[i].name)) == 0) 160 { 161 if (size > 0) 162 return section_flags[i].flags_hassize; 163 else 164 return section_flags[i].flags_always; 165 } 166 i++; 167 } 168 if (size > 0) 169 return section_flags[i].flags_hassize; 170 return section_flags[i].flags_always; 171 } 172 173 174 /* Retrieve vms section flags by name and size */ 175 176 static flagword 177 vms_esecflag_by_name (section_flags, name, size) 178 struct sec_flags_struct *section_flags; 179 char *name; 180 int size; 181 { 182 int i = 0; 183 184 while (section_flags[i].name != NULL) 185 { 186 if (strcmp (name, section_flags[i].name) == 0) 187 { 188 if (size > 0) 189 return section_flags[i].vflags_hassize; 190 else 191 return section_flags[i].vflags_always; 192 } 193 i++; 194 } 195 if (size > 0) 196 return section_flags[i].vflags_hassize; 197 return section_flags[i].vflags_always; 198 } 199 200 /*-----------------------------------------------------------------------------*/ 201 #if VMS_DEBUG 202 /* debug */ 203 204 struct flagdescstruct { char *name; flagword value; }; 205 206 /* Convert flag to printable string */ 207 208 static char * 209 flag2str(flagdesc, flags) 210 struct flagdescstruct *flagdesc; 211 flagword flags; 212 { 213 214 static char res[64]; 215 int next = 0; 216 217 res[0] = 0; 218 while (flagdesc->name != NULL) 219 { 220 if ((flags & flagdesc->value) != 0) 221 { 222 if (next) 223 strcat(res, ","); 224 else 225 next = 1; 226 strcat (res, flagdesc->name); 227 } 228 flagdesc++; 229 } 230 return res; 231 } 232 #endif 233 234 /*-----------------------------------------------------------------------------*/ 235 /* input routines */ 236 237 /* Process GSD/EGSD record 238 return 0 on success, -1 on error */ 239 240 int 241 _bfd_vms_slurp_gsd (abfd, objtype) 242 bfd *abfd; 243 int objtype; 244 { 245 #if VMS_DEBUG 246 static struct flagdescstruct gpsflagdesc[] = 247 { 248 { "PIC", 0x0001 }, 249 { "LIB", 0x0002 }, 250 { "OVR", 0x0004 }, 251 { "REL", 0x0008 }, 252 { "GBL", 0x0010 }, 253 { "SHR", 0x0020 }, 254 { "EXE", 0x0040 }, 255 { "RD", 0x0080 }, 256 { "WRT", 0x0100 }, 257 { "VEC", 0x0200 }, 258 { "NOMOD", 0x0400 }, 259 { "COM", 0x0800 }, 260 { NULL, 0 } 261 }; 262 263 static struct flagdescstruct gsyflagdesc[] = 264 { 265 { "WEAK", 0x0001 }, 266 { "DEF", 0x0002 }, 267 { "UNI", 0x0004 }, 268 { "REL", 0x0008 }, 269 { "COMM", 0x0010 }, 270 { "VECEP", 0x0020 }, 271 { "NORM", 0x0040 }, 272 { NULL, 0 } 273 }; 274 #endif 275 276 int gsd_type, gsd_size; 277 asection *section; 278 unsigned char *vms_rec; 279 flagword new_flags, old_flags; 280 char *name; 281 asymbol *symbol; 282 vms_symbol_entry *entry; 283 unsigned long base_addr; 284 unsigned long align_addr; 285 static unsigned int psect_idx = 0; 286 287 #if VMS_DEBUG 288 vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype); 289 #endif 290 291 switch (objtype) 292 { 293 case EOBJ_S_C_EGSD: 294 PRIV(vms_rec) += 8; /* skip type, size, l_temp */ 295 PRIV(rec_size) -= 8; 296 break; 297 case OBJ_S_C_GSD: 298 PRIV(vms_rec) += 1; 299 PRIV(rec_size) -= 1; 300 break; 301 default: 302 return -1; 303 } 304 305 /* calculate base address for each section */ 306 base_addr = 0L; 307 308 abfd->symcount = 0; 309 310 while (PRIV(rec_size) > 0) 311 { 312 vms_rec = PRIV(vms_rec); 313 314 if (objtype == OBJ_S_C_GSD) 315 { 316 gsd_type = *vms_rec; 317 } 318 else 319 { 320 _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size); 321 gsd_type += EVAX_OFFSET; 322 } 323 324 #if VMS_DEBUG 325 vms_debug (3, "gsd_type %d\n", gsd_type); 326 #endif 327 328 switch (gsd_type) 329 { 330 case GSD_S_C_PSC: 331 { 332 /* 333 * program section definition 334 */ 335 336 asection *old_section = 0; 337 338 #if VMS_DEBUG 339 vms_debug (4, "GSD_S_C_PSC\n"); 340 #endif 341 /* If this section isn't a bfd section. */ 342 343 if (PRIV(is_vax) && (psect_idx < (abfd->section_count-1))) 344 { 345 /* check for temporary section from TIR record. */ 346 347 if (psect_idx < PRIV(section_count)) 348 old_section = PRIV(sections)[psect_idx]; 349 else 350 old_section = 0; 351 } 352 353 name = _bfd_vms_save_counted_string (vms_rec + 8); 354 section = bfd_make_section (abfd, name); 355 if (!section) 356 { 357 (*_bfd_error_handler) (_("bfd_make_section (%s) failed"), 358 name); 359 return -1; 360 } 361 old_flags = bfd_getl16 (vms_rec + 2); 362 section->_raw_size = bfd_getl32(vms_rec + 4); /* allocation */ 363 new_flags = vms_secflag_by_name (abfd, vax_section_flags, name, section->_raw_size); 364 if (old_flags & EGPS_S_V_REL) 365 new_flags |= SEC_RELOC; 366 if (old_flags & GPS_S_M_OVR) 367 new_flags |= SEC_IS_COMMON; 368 if (!bfd_set_section_flags (abfd, section, new_flags)) 369 { 370 (*_bfd_error_handler) 371 (_("bfd_set_section_flags (%s, %x) failed"), 372 name, new_flags); 373 return -1; 374 } 375 section->alignment_power = vms_rec[1]; 376 align_addr = (1 << section->alignment_power); 377 if ((base_addr % align_addr) != 0) 378 base_addr += (align_addr - (base_addr % align_addr)); 379 section->vma = (bfd_vma)base_addr; 380 base_addr += section->_raw_size; 381 382 /* global section is common symbol */ 383 384 if (old_flags & GPS_S_M_GBL) 385 { 386 entry = _bfd_vms_enter_symbol (abfd, name); 387 if (entry == (vms_symbol_entry *)NULL) 388 { 389 bfd_set_error (bfd_error_no_memory); 390 return -1; 391 } 392 symbol = entry->symbol; 393 394 symbol->value = 0; 395 symbol->section = section; 396 symbol->flags = (BSF_GLOBAL|BSF_SECTION_SYM|BSF_OLD_COMMON); 397 } 398 399 /* copy saved contents if old_section set */ 400 401 if (old_section != 0) 402 { 403 section->contents = old_section->contents; 404 if (section->_raw_size < old_section->_raw_size) 405 { 406 (*_bfd_error_handler) 407 (_("Size mismatch section %s=%lx, %s=%lx"), 408 old_section->name, 409 (unsigned long) old_section->_raw_size, 410 section->name, 411 (unsigned long) section->_raw_size); 412 return -1; 413 } 414 else if (section->_raw_size > old_section->_raw_size) 415 { 416 section->contents = ((unsigned char *) 417 bfd_realloc (old_section->contents, section->_raw_size)); 418 if (section->contents == NULL) 419 { 420 bfd_set_error (bfd_error_no_memory); 421 return -1; 422 } 423 } 424 } 425 else 426 { 427 section->contents = ((unsigned char *) 428 bfd_malloc (section->_raw_size)); 429 if (section->contents == NULL) 430 { 431 bfd_set_error (bfd_error_no_memory); 432 return -1; 433 } 434 memset (section->contents, 0, (size_t)section->_raw_size); 435 } 436 section->_cooked_size = section->_raw_size; 437 #if VMS_DEBUG 438 vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ", 439 section->index, name, old_flags, flag2str (gpsflagdesc, old_flags)); 440 vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n", 441 section->_raw_size, section->vma, section->contents); 442 #endif 443 444 gsd_size = vms_rec[8] + 9; 445 446 psect_idx++; 447 } 448 break; 449 450 case GSD_S_C_EPM: 451 case GSD_S_C_EPMW: 452 #if VMS_DEBUG 453 vms_debug(4, "gsd epm\n"); 454 #endif 455 /*FALLTHRU*/ 456 case GSD_S_C_SYM: 457 case GSD_S_C_SYMW: 458 { 459 int name_offset, value_offset; 460 461 /* 462 * symbol specification (definition or reference) 463 */ 464 465 #if VMS_DEBUG 466 vms_debug (4, "GSD_S_C_SYM(W)\n"); 467 #endif 468 old_flags = bfd_getl16 (vms_rec + 2); 469 new_flags = BSF_NO_FLAGS; 470 471 if (old_flags & GSY_S_M_WEAK) 472 new_flags |= BSF_WEAK; 473 474 switch (gsd_type) 475 { 476 case GSD_S_C_EPM: 477 name_offset = 11; 478 value_offset = 5; 479 new_flags |= BSF_FUNCTION; 480 break; 481 case GSD_S_C_EPMW: 482 name_offset = 12; 483 value_offset = 6; 484 new_flags |= BSF_FUNCTION; 485 break; 486 case GSD_S_C_SYM: 487 if (old_flags & GSY_S_M_DEF) /* symbol definition */ 488 name_offset = 9; 489 else 490 name_offset = 4; 491 value_offset = 5; 492 break; 493 case GSD_S_C_SYMW: 494 if (old_flags & GSY_S_M_DEF) /* symbol definition */ 495 name_offset = 10; 496 else 497 name_offset = 5; 498 value_offset = 6; 499 break; 500 } 501 502 /* save symbol in vms_symbol_table */ 503 504 entry = _bfd_vms_enter_symbol (abfd, 505 _bfd_vms_save_counted_string (vms_rec + name_offset)); 506 if (entry == (vms_symbol_entry *)NULL) 507 { 508 bfd_set_error (bfd_error_no_memory); 509 return -1; 510 } 511 symbol = entry->symbol; 512 513 if (old_flags & GSY_S_M_DEF) /* symbol definition */ 514 { 515 int psect; 516 517 symbol->value = bfd_getl32 (vms_rec+value_offset); 518 if ((gsd_type == GSD_S_C_SYMW) 519 || (gsd_type == GSD_S_C_EPMW)) 520 psect = bfd_getl16 (vms_rec + value_offset - 2); 521 else 522 psect = vms_rec[value_offset-1]; 523 524 symbol->section = (asection *)psect; 525 #if VMS_DEBUG 526 vms_debug(4, "gsd sym def #%d (%s, %d [%p], %04x=%s)\n", abfd->symcount, 527 symbol->name, (int)symbol->section, symbol->section, old_flags, flag2str(gsyflagdesc, old_flags)); 528 #endif 529 } 530 else /* symbol reference */ 531 { 532 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME); 533 #if VMS_DEBUG 534 vms_debug (4, "gsd sym ref #%d (%s, %s [%p], %04x=%s)\n", abfd->symcount, 535 symbol->name, symbol->section->name, symbol->section, old_flags, flag2str (gsyflagdesc, old_flags)); 536 #endif 537 } 538 539 gsd_size = vms_rec[name_offset] + name_offset + 1; 540 symbol->flags = new_flags; 541 } 542 543 break; 544 545 case GSD_S_C_PRO: 546 case GSD_S_C_PROW: 547 #if VMS_DEBUG 548 vms_debug(4, "gsd pro\n"); 549 #endif 550 break; 551 case GSD_S_C_IDC: 552 #if VMS_DEBUG 553 vms_debug(4, "gsd idc\n"); 554 #endif 555 break; 556 case GSD_S_C_ENV: 557 #if VMS_DEBUG 558 vms_debug(4, "gsd env\n"); 559 #endif 560 break; 561 case GSD_S_C_LSY: 562 #if VMS_DEBUG 563 vms_debug(4, "gsd lsy\n"); 564 #endif 565 break; 566 case GSD_S_C_LEPM: 567 #if VMS_DEBUG 568 vms_debug(4, "gsd lepm\n"); 569 #endif 570 break; 571 case GSD_S_C_LPRO: 572 #if VMS_DEBUG 573 vms_debug(4, "gsd lpro\n"); 574 #endif 575 break; 576 case GSD_S_C_SPSC: 577 #if VMS_DEBUG 578 vms_debug(4, "gsd spsc\n"); 579 #endif 580 break; 581 case GSD_S_C_SYMV: 582 #if VMS_DEBUG 583 vms_debug(4, "gsd symv\n"); 584 #endif 585 break; 586 case GSD_S_C_EPMV: 587 #if VMS_DEBUG 588 vms_debug(4, "gsd epmv\n"); 589 #endif 590 break; 591 case GSD_S_C_PROV: 592 #if VMS_DEBUG 593 vms_debug(4, "gsd prov\n"); 594 #endif 595 break; 596 597 case EGSD_S_C_PSC + EVAX_OFFSET: 598 { 599 /* program section definition */ 600 601 name = _bfd_vms_save_counted_string (vms_rec+12); 602 section = bfd_make_section (abfd, name); 603 if (!section) 604 return -1; 605 old_flags = bfd_getl16 (vms_rec + 6); 606 section->_raw_size = bfd_getl32 (vms_rec + 8); /* allocation */ 607 new_flags = vms_secflag_by_name (abfd, evax_section_flags, name, (int) section->_raw_size); 608 if (old_flags & EGPS_S_V_REL) 609 new_flags |= SEC_RELOC; 610 if (!bfd_set_section_flags (abfd, section, new_flags)) 611 return -1; 612 section->alignment_power = vms_rec[4]; 613 align_addr = (1 << section->alignment_power); 614 if ((base_addr % align_addr) != 0) 615 base_addr += (align_addr - (base_addr % align_addr)); 616 section->vma = (bfd_vma)base_addr; 617 base_addr += section->_raw_size; 618 section->contents = ((unsigned char *) 619 bfd_malloc (section->_raw_size)); 620 if (section->contents == NULL) 621 return -1; 622 memset (section->contents, 0, (size_t) section->_raw_size); 623 section->_cooked_size = section->_raw_size; 624 #if VMS_DEBUG 625 vms_debug(4, "egsd psc %d (%s, flags %04x=%s) ", 626 section->index, name, old_flags, flag2str(gpsflagdesc, old_flags)); 627 vms_debug(4, "%d bytes at 0x%08lx (mem %p)\n", 628 section->_raw_size, section->vma, section->contents); 629 #endif 630 } 631 break; 632 633 case EGSD_S_C_SYM + EVAX_OFFSET: 634 { 635 /* symbol specification (definition or reference) */ 636 637 symbol = _bfd_vms_make_empty_symbol (abfd); 638 if (symbol == 0) 639 return -1; 640 641 old_flags = bfd_getl16 (vms_rec + 6); 642 new_flags = BSF_NO_FLAGS; 643 644 if (old_flags & EGSY_S_V_WEAK) 645 new_flags |= BSF_WEAK; 646 647 if (vms_rec[6] & EGSY_S_V_DEF) /* symbol definition */ 648 { 649 symbol->name = 650 _bfd_vms_save_counted_string (vms_rec+32); 651 if (old_flags & EGSY_S_V_NORM) 652 { /* proc def */ 653 new_flags |= BSF_FUNCTION; 654 } 655 symbol->value = bfd_getl64 (vms_rec+8); 656 symbol->section = (asection *)((unsigned long) bfd_getl32 (vms_rec+28)); 657 #if VMS_DEBUG 658 vms_debug(4, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount, 659 symbol->name, (int)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags)); 660 #endif 661 } 662 else /* symbol reference */ 663 { 664 symbol->name = 665 _bfd_vms_save_counted_string (vms_rec+8); 666 #if VMS_DEBUG 667 vms_debug(4, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount, 668 symbol->name, old_flags, flag2str(gsyflagdesc, old_flags)); 669 #endif 670 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME); 671 } 672 673 symbol->flags = new_flags; 674 675 /* save symbol in vms_symbol_table */ 676 677 entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV(vms_symbol_table), symbol->name, true, false); 678 if (entry == (vms_symbol_entry *)NULL) 679 { 680 bfd_set_error (bfd_error_no_memory); 681 return -1; 682 } 683 if (entry->symbol != (asymbol *)NULL) 684 { /* FIXME ?, DEC C generates this */ 685 #if VMS_DEBUG 686 vms_debug(4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name); 687 #endif 688 } 689 else 690 { 691 entry->symbol = symbol; 692 PRIV(gsd_sym_count)++; 693 abfd->symcount++; 694 } 695 } 696 break; 697 698 case EGSD_S_C_IDC + EVAX_OFFSET: 699 break; 700 701 default: 702 (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type); 703 bfd_set_error (bfd_error_bad_value); 704 return -1; 705 706 } /* switch */ 707 708 PRIV(rec_size) -= gsd_size; 709 PRIV(vms_rec) += gsd_size; 710 711 } /* while (recsize > 0) */ 712 713 if (abfd->symcount > 0) 714 abfd->flags |= HAS_SYMS; 715 716 return 0; 717 } 718 719 /*-----------------------------------------------------------------------------*/ 720 /* output routines */ 721 722 /* Write section and symbol directory of bfd abfd */ 723 724 int 725 _bfd_vms_write_gsd (abfd, objtype) 726 bfd *abfd; 727 int objtype ATTRIBUTE_UNUSED; 728 { 729 asection *section; 730 asymbol *symbol; 731 unsigned int symnum; 732 int last_index = -1; 733 char dummy_name[10]; 734 char *sname; 735 flagword new_flags, old_flags; 736 737 #if VMS_DEBUG 738 vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype); 739 #endif 740 741 /* output sections */ 742 743 section = abfd->sections; 744 #if VMS_DEBUG 745 vms_debug (3, "%d sections found\n", abfd->section_count); 746 #endif 747 748 /* egsd is quadword aligned */ 749 750 _bfd_vms_output_alignment (abfd, 8); 751 752 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); 753 _bfd_vms_output_long (abfd, 0); 754 _bfd_vms_output_push (abfd); /* prepare output for subrecords */ 755 756 while (section != 0) 757 { 758 #if VMS_DEBUG 759 vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size); 760 #endif 761 762 /* 13 bytes egsd, max 31 chars name -> should be 44 bytes */ 763 if (_bfd_vms_output_check (abfd, 64) < 0) 764 { 765 _bfd_vms_output_pop (abfd); 766 _bfd_vms_output_end (abfd); 767 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); 768 _bfd_vms_output_long (abfd, 0); 769 _bfd_vms_output_push (abfd); /* prepare output for subrecords */ 770 } 771 772 /* Create dummy sections to keep consecutive indices */ 773 774 while (section->index - last_index > 1) 775 { 776 #if VMS_DEBUG 777 vms_debug (3, "index %d, last %d\n", section->index, last_index); 778 #endif 779 _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1); 780 _bfd_vms_output_short (abfd, 0); 781 _bfd_vms_output_short (abfd, 0); 782 _bfd_vms_output_long (abfd, 0); 783 sprintf (dummy_name, ".DUMMY%02d", last_index); 784 _bfd_vms_output_counted (abfd, dummy_name); 785 _bfd_vms_output_flush (abfd); 786 last_index++; 787 } 788 789 /* Don't know if this is neccesary for the linker but for now it keeps 790 vms_slurp_gsd happy */ 791 792 sname = (char *)section->name; 793 if (*sname == '.') 794 { 795 sname++; 796 if ((*sname == 't') && (strcmp (sname, "text") == 0)) 797 sname = PRIV(is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME; 798 else if ((*sname == 'd') && (strcmp (sname, "data") == 0)) 799 sname = PRIV(is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME; 800 else if ((*sname == 'b') && (strcmp (sname, "bss") == 0)) 801 sname = EVAX_BSS_NAME; 802 else if ((*sname == 'l') && (strcmp (sname, "link") == 0)) 803 sname = EVAX_LINK_NAME; 804 else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0)) 805 sname = EVAX_READONLY_NAME; 806 else if ((*sname == 'l') && (strcmp (sname, "literal") == 0)) 807 sname = EVAX_LITERAL_NAME; 808 else if ((*sname == 'c') && (strcmp (sname, "comm") == 0)) 809 sname = EVAX_COMMON_NAME; 810 else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0)) 811 sname = EVAX_LOCAL_NAME; 812 } 813 else 814 sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ); 815 816 _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1); 817 _bfd_vms_output_short (abfd, section->alignment_power & 0xff); 818 if (bfd_is_com_section (section)) 819 { 820 new_flags = (EGPS_S_V_OVR|EGPS_S_V_REL|EGPS_S_V_GBL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD|EGPS_S_V_COM); 821 } 822 else 823 { 824 new_flags = vms_esecflag_by_name (evax_section_flags, sname, section->_raw_size); 825 } 826 _bfd_vms_output_short (abfd, new_flags); 827 _bfd_vms_output_long (abfd, section->_raw_size); 828 _bfd_vms_output_counted (abfd, sname); 829 _bfd_vms_output_flush (abfd); 830 831 last_index = section->index; 832 section = section->next; 833 } 834 835 /* output symbols */ 836 837 #if VMS_DEBUG 838 vms_debug (3, "%d symbols found\n", abfd->symcount); 839 #endif 840 841 bfd_set_start_address (abfd, (bfd_vma)-1); 842 843 for (symnum = 0; symnum < abfd->symcount; symnum++) 844 { 845 846 symbol = abfd->outsymbols[symnum]; 847 if (*(symbol->name) == '_') 848 { 849 if (strcmp (symbol->name, "__main") == 0) 850 bfd_set_start_address (abfd, (bfd_vma)symbol->value); 851 } 852 old_flags = symbol->flags; 853 854 if (old_flags & BSF_FILE) 855 continue; 856 857 if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 0) /* not xdef */ 858 && (!bfd_is_und_section (symbol->section))) /* and not xref */ 859 continue; /* dont output */ 860 861 /* 13 bytes egsd, max 64 chars name -> should be 77 bytes */ 862 863 if (_bfd_vms_output_check (abfd, 80) < 0) 864 { 865 _bfd_vms_output_pop (abfd); 866 _bfd_vms_output_end (abfd); 867 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); 868 _bfd_vms_output_long (abfd, 0); 869 _bfd_vms_output_push (abfd); /* prepare output for subrecords */ 870 } 871 872 _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1); 873 874 _bfd_vms_output_short (abfd, 0); /* data type, alignment */ 875 876 new_flags = 0; 877 878 if (old_flags & BSF_WEAK) 879 new_flags |= EGSY_S_V_WEAK; 880 if (bfd_is_com_section (symbol->section)) /* .comm */ 881 new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM); 882 883 if (old_flags & BSF_FUNCTION) 884 { 885 new_flags |= EGSY_S_V_NORM; 886 new_flags |= EGSY_S_V_REL; 887 } 888 if (old_flags & (BSF_GLOBAL|BSF_WEAK)) 889 { 890 new_flags |= EGSY_S_V_DEF; 891 if (!bfd_is_abs_section (symbol->section)) 892 new_flags |= EGSY_S_V_REL; 893 } 894 _bfd_vms_output_short (abfd, new_flags); 895 896 if (old_flags & (BSF_GLOBAL|BSF_WEAK)) /* symbol definition */ 897 { 898 if (old_flags & BSF_FUNCTION) 899 { 900 _bfd_vms_output_quad (abfd, symbol->value); 901 _bfd_vms_output_quad (abfd, 902 ((asymbol *)(symbol->udata.p))->value); 903 _bfd_vms_output_long (abfd, 904 (((asymbol *)(symbol->udata.p)) 905 ->section->index)); 906 _bfd_vms_output_long (abfd, symbol->section->index); 907 } 908 else 909 { 910 _bfd_vms_output_quad (abfd, symbol->value); /* L_VALUE */ 911 _bfd_vms_output_quad (abfd, 0); /* L_CODE_ADDRESS */ 912 _bfd_vms_output_long (abfd, 0); /* L_CA_PSINDX */ 913 _bfd_vms_output_long (abfd, symbol->section->index);/* L_PSINDX */ 914 } 915 } 916 _bfd_vms_output_counted (abfd, _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ)); 917 918 _bfd_vms_output_flush (abfd); 919 920 } 921 922 _bfd_vms_output_alignment (abfd, 8); 923 _bfd_vms_output_pop (abfd); 924 _bfd_vms_output_end (abfd); 925 926 return 0; 927 } 928