1 /* vms-gsd.c -- BFD back-end for VAX (openVMS/VAX) and 2 EVAX (openVMS/Alpha) files. 3 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 4 Free Software Foundation, Inc. 5 6 go and read the openVMS linker manual (esp. appendix B) 7 if you don't know what's going on here :-) 8 9 Written by Klaus K"ampf (kkaempf@rmi.de) 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 "bfd.h" 26 #include "sysdep.h" 27 #include "bfdlink.h" 28 #include "libbfd.h" 29 30 #include "vms.h" 31 32 /*-----------------------------------------------------------------------------*/ 33 34 /* typical sections for vax object files */ 35 36 #define VAX_CODE_NAME "$CODE" 37 #define VAX_DATA_NAME "$DATA" 38 #define VAX_ADDRESS_DATA_NAME "$ADDRESS_DATA" 39 40 /* typical sections for evax object files */ 41 42 #define EVAX_ABS_NAME "$ABS$" 43 #define EVAX_CODE_NAME "$CODE$" 44 #define EVAX_LINK_NAME "$LINK$" 45 #define EVAX_DATA_NAME "$DATA$" 46 #define EVAX_BSS_NAME "$BSS$" 47 #define EVAX_READONLYADDR_NAME "$READONLY_ADDR$" 48 #define EVAX_READONLY_NAME "$READONLY$" 49 #define EVAX_LITERAL_NAME "$LITERAL$" 50 #define EVAX_COMMON_NAME "$COMMON$" 51 #define EVAX_LOCAL_NAME "$LOCAL$" 52 53 struct sec_flags_struct { 54 char *name; /* name of section */ 55 int vflags_always; 56 flagword flags_always; /* flags we set always */ 57 int vflags_hassize; 58 flagword flags_hassize; /* flags we set if the section has a size > 0 */ 59 }; 60 61 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible */ 62 63 static struct sec_flags_struct vax_section_flags[] = { 64 { VAX_CODE_NAME, 65 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD), 66 (SEC_CODE), 67 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE|GPS_S_M_RD), 68 (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 69 { VAX_DATA_NAME, 70 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT), 71 (SEC_DATA), 72 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT), 73 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 74 { VAX_ADDRESS_DATA_NAME, 75 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD), 76 (SEC_DATA|SEC_READONLY), 77 (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD), 78 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 79 { NULL, 80 (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL|GPS_S_M_RD|GPS_S_M_WRT), 81 (SEC_DATA), 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_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) } 84 }; 85 86 /* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible */ 87 88 static struct sec_flags_struct evax_section_flags[] = { 89 { EVAX_ABS_NAME, 90 (EGPS_S_V_SHR), 91 (SEC_DATA), 92 (EGPS_S_V_SHR), 93 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 94 { EVAX_CODE_NAME, 95 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE), 96 (SEC_CODE), 97 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_EXE), 98 (SEC_IN_MEMORY|SEC_CODE|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 99 { EVAX_LITERAL_NAME, 100 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD), 101 (SEC_DATA|SEC_READONLY), 102 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD), 103 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 104 { EVAX_LINK_NAME, 105 (EGPS_S_V_REL|EGPS_S_V_RD), 106 (SEC_DATA|SEC_READONLY), 107 (EGPS_S_V_REL|EGPS_S_V_RD), 108 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 109 { EVAX_DATA_NAME, 110 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD), 111 (SEC_DATA), 112 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 113 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 114 { EVAX_BSS_NAME, 115 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD), 116 (SEC_NO_FLAGS), 117 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT|EGPS_S_V_NOMOD), 118 (SEC_IN_MEMORY|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 119 { EVAX_READONLYADDR_NAME, 120 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD), 121 (SEC_DATA|SEC_READONLY), 122 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_RD), 123 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 124 { EVAX_READONLY_NAME, 125 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD|EGPS_S_V_NOMOD), 126 (SEC_DATA|SEC_READONLY), 127 (EGPS_S_V_PIC|EGPS_S_V_REL|EGPS_S_V_SHR|EGPS_S_V_RD), 128 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_READONLY|SEC_LOAD) }, 129 { EVAX_LOCAL_NAME, 130 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 131 (SEC_DATA), 132 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 133 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) }, 134 { NULL, 135 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 136 (SEC_DATA), 137 (EGPS_S_V_REL|EGPS_S_V_RD|EGPS_S_V_WRT), 138 (SEC_IN_MEMORY|SEC_DATA|SEC_HAS_CONTENTS|SEC_ALLOC|SEC_LOAD) } 139 }; 140 141 static flagword vms_secflag_by_name PARAMS ((bfd *, struct sec_flags_struct *, char *, int)); 142 static flagword vms_esecflag_by_name PARAMS ((struct sec_flags_struct *, char *, int)); 143 144 /* Retrieve bfd section flags by name and size */ 145 146 static flagword 147 vms_secflag_by_name (abfd, section_flags, name, hassize) 148 bfd *abfd; 149 struct sec_flags_struct *section_flags; 150 char *name; 151 int hassize; 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 (hassize) 162 return section_flags[i].flags_hassize; 163 else 164 return section_flags[i].flags_always; 165 } 166 i++; 167 } 168 if (hassize) 169 return section_flags[i].flags_hassize; 170 return section_flags[i].flags_always; 171 } 172 173 /* Retrieve vms section flags by name and size */ 174 175 static flagword 176 vms_esecflag_by_name (section_flags, name, hassize) 177 struct sec_flags_struct *section_flags; 178 char *name; 179 int hassize; 180 { 181 int i = 0; 182 183 while (section_flags[i].name != NULL) 184 { 185 if (strcmp (name, section_flags[i].name) == 0) 186 { 187 if (hassize) 188 return section_flags[i].vflags_hassize; 189 else 190 return section_flags[i].vflags_always; 191 } 192 i++; 193 } 194 if (hassize) 195 return section_flags[i].vflags_hassize; 196 return section_flags[i].vflags_always; 197 } 198 199 /*-----------------------------------------------------------------------------*/ 200 #if VMS_DEBUG 201 /* debug */ 202 203 struct flagdescstruct { char *name; flagword value; }; 204 205 /* Convert flag to printable string */ 206 207 static char * 208 flag2str(flagdesc, flags) 209 struct flagdescstruct *flagdesc; 210 flagword flags; 211 { 212 213 static char res[64]; 214 int next = 0; 215 216 res[0] = 0; 217 while (flagdesc->name != NULL) 218 { 219 if ((flags & flagdesc->value) != 0) 220 { 221 if (next) 222 strcat(res, ","); 223 else 224 next = 1; 225 strcat (res, flagdesc->name); 226 } 227 flagdesc++; 228 } 229 return res; 230 } 231 #endif 232 233 /*-----------------------------------------------------------------------------*/ 234 /* input routines */ 235 236 /* Process GSD/EGSD record 237 return 0 on success, -1 on error */ 238 239 int 240 _bfd_vms_slurp_gsd (abfd, objtype) 241 bfd *abfd; 242 int objtype; 243 { 244 #if VMS_DEBUG 245 static struct flagdescstruct gpsflagdesc[] = 246 { 247 { "PIC", 0x0001 }, 248 { "LIB", 0x0002 }, 249 { "OVR", 0x0004 }, 250 { "REL", 0x0008 }, 251 { "GBL", 0x0010 }, 252 { "SHR", 0x0020 }, 253 { "EXE", 0x0040 }, 254 { "RD", 0x0080 }, 255 { "WRT", 0x0100 }, 256 { "VEC", 0x0200 }, 257 { "NOMOD", 0x0400 }, 258 { "COM", 0x0800 }, 259 { NULL, 0 } 260 }; 261 262 static struct flagdescstruct gsyflagdesc[] = 263 { 264 { "WEAK", 0x0001 }, 265 { "DEF", 0x0002 }, 266 { "UNI", 0x0004 }, 267 { "REL", 0x0008 }, 268 { "COMM", 0x0010 }, 269 { "VECEP", 0x0020 }, 270 { "NORM", 0x0040 }, 271 { NULL, 0 } 272 }; 273 #endif 274 275 int gsd_type, gsd_size; 276 asection *section; 277 unsigned char *vms_rec; 278 flagword new_flags, old_flags; 279 char *name; 280 asymbol *symbol; 281 vms_symbol_entry *entry; 282 unsigned long base_addr; 283 unsigned long align_addr; 284 static unsigned int psect_idx = 0; 285 286 #if VMS_DEBUG 287 vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype); 288 #endif 289 290 switch (objtype) 291 { 292 case EOBJ_S_C_EGSD: 293 PRIV(vms_rec) += 8; /* skip type, size, l_temp */ 294 PRIV(rec_size) -= 8; 295 break; 296 case OBJ_S_C_GSD: 297 PRIV(vms_rec) += 1; 298 PRIV(rec_size) -= 1; 299 break; 300 default: 301 return -1; 302 } 303 304 /* calculate base address for each section */ 305 base_addr = 0L; 306 307 abfd->symcount = 0; 308 309 while (PRIV(rec_size) > 0) 310 { 311 vms_rec = PRIV(vms_rec); 312 313 if (objtype == OBJ_S_C_GSD) 314 { 315 gsd_type = *vms_rec; 316 } 317 else 318 { 319 _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size); 320 gsd_type += EVAX_OFFSET; 321 } 322 323 #if VMS_DEBUG 324 vms_debug (3, "gsd_type %d\n", gsd_type); 325 #endif 326 327 switch (gsd_type) 328 { 329 case GSD_S_C_PSC: 330 { 331 /* 332 * program section definition 333 */ 334 335 asection *old_section = 0; 336 337 #if VMS_DEBUG 338 vms_debug (4, "GSD_S_C_PSC\n"); 339 #endif 340 /* If this section isn't a bfd section. */ 341 342 if (PRIV(is_vax) && (psect_idx < (abfd->section_count-1))) 343 { 344 /* check for temporary section from TIR record. */ 345 346 if (psect_idx < PRIV(section_count)) 347 old_section = PRIV(sections)[psect_idx]; 348 else 349 old_section = 0; 350 } 351 352 name = _bfd_vms_save_counted_string (vms_rec + 8); 353 section = bfd_make_section (abfd, name); 354 if (!section) 355 { 356 (*_bfd_error_handler) (_("bfd_make_section (%s) failed"), 357 name); 358 return -1; 359 } 360 old_flags = bfd_getl16 (vms_rec + 2); 361 section->_raw_size = bfd_getl32 (vms_rec + 4); /* allocation */ 362 new_flags = vms_secflag_by_name (abfd, vax_section_flags, name, 363 section->_raw_size > 0); 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, 418 section->_raw_size)); 419 if (section->contents == NULL) 420 { 421 bfd_set_error (bfd_error_no_memory); 422 return -1; 423 } 424 } 425 } 426 else 427 { 428 section->contents = ((unsigned char *) 429 bfd_zmalloc (section->_raw_size)); 430 if (section->contents == NULL) 431 { 432 bfd_set_error (bfd_error_no_memory); 433 return -1; 434 } 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 = 0, value_offset = 0; 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, 608 section->_raw_size > 0); 609 if (old_flags & EGPS_S_V_REL) 610 new_flags |= SEC_RELOC; 611 if (!bfd_set_section_flags (abfd, section, new_flags)) 612 return -1; 613 section->alignment_power = vms_rec[4]; 614 align_addr = (1 << section->alignment_power); 615 if ((base_addr % align_addr) != 0) 616 base_addr += (align_addr - (base_addr % align_addr)); 617 section->vma = (bfd_vma)base_addr; 618 base_addr += section->_raw_size; 619 section->contents = ((unsigned char *) 620 bfd_zmalloc (section->_raw_size)); 621 if (section->contents == NULL) 622 return -1; 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_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), 678 symbol->name, 679 TRUE, FALSE); 680 if (entry == (vms_symbol_entry *)NULL) 681 { 682 bfd_set_error (bfd_error_no_memory); 683 return -1; 684 } 685 if (entry->symbol != (asymbol *)NULL) 686 { /* FIXME ?, DEC C generates this */ 687 #if VMS_DEBUG 688 vms_debug(4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name); 689 #endif 690 } 691 else 692 { 693 entry->symbol = symbol; 694 PRIV(gsd_sym_count)++; 695 abfd->symcount++; 696 } 697 } 698 break; 699 700 case EGSD_S_C_IDC + EVAX_OFFSET: 701 break; 702 703 default: 704 (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type); 705 bfd_set_error (bfd_error_bad_value); 706 return -1; 707 708 } /* switch */ 709 710 PRIV(rec_size) -= gsd_size; 711 PRIV(vms_rec) += gsd_size; 712 713 } /* while (recsize > 0) */ 714 715 if (abfd->symcount > 0) 716 abfd->flags |= HAS_SYMS; 717 718 return 0; 719 } 720 721 /*-----------------------------------------------------------------------------*/ 722 /* output routines */ 723 724 /* Write section and symbol directory of bfd abfd */ 725 726 int 727 _bfd_vms_write_gsd (abfd, objtype) 728 bfd *abfd; 729 int objtype ATTRIBUTE_UNUSED; 730 { 731 asection *section; 732 asymbol *symbol; 733 unsigned int symnum; 734 int last_index = -1; 735 char dummy_name[10]; 736 char *sname; 737 flagword new_flags, old_flags; 738 739 #if VMS_DEBUG 740 vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype); 741 #endif 742 743 /* output sections */ 744 745 section = abfd->sections; 746 #if VMS_DEBUG 747 vms_debug (3, "%d sections found\n", abfd->section_count); 748 #endif 749 750 /* egsd is quadword aligned */ 751 752 _bfd_vms_output_alignment (abfd, 8); 753 754 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); 755 _bfd_vms_output_long (abfd, 0); 756 _bfd_vms_output_push (abfd); /* prepare output for subrecords */ 757 758 while (section != 0) 759 { 760 #if VMS_DEBUG 761 vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->_raw_size); 762 #endif 763 764 /* 13 bytes egsd, max 31 chars name -> should be 44 bytes */ 765 if (_bfd_vms_output_check (abfd, 64) < 0) 766 { 767 _bfd_vms_output_pop (abfd); 768 _bfd_vms_output_end (abfd); 769 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); 770 _bfd_vms_output_long (abfd, 0); 771 _bfd_vms_output_push (abfd); /* prepare output for subrecords */ 772 } 773 774 /* Create dummy sections to keep consecutive indices */ 775 776 while (section->index - last_index > 1) 777 { 778 #if VMS_DEBUG 779 vms_debug (3, "index %d, last %d\n", section->index, last_index); 780 #endif 781 _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1); 782 _bfd_vms_output_short (abfd, 0); 783 _bfd_vms_output_short (abfd, 0); 784 _bfd_vms_output_long (abfd, 0); 785 sprintf (dummy_name, ".DUMMY%02d", last_index); 786 _bfd_vms_output_counted (abfd, dummy_name); 787 _bfd_vms_output_flush (abfd); 788 last_index++; 789 } 790 791 /* Don't know if this is necessary for the linker but for now it keeps 792 vms_slurp_gsd happy */ 793 794 sname = (char *)section->name; 795 if (*sname == '.') 796 { 797 sname++; 798 if ((*sname == 't') && (strcmp (sname, "text") == 0)) 799 sname = PRIV(is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME; 800 else if ((*sname == 'd') && (strcmp (sname, "data") == 0)) 801 sname = PRIV(is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME; 802 else if ((*sname == 'b') && (strcmp (sname, "bss") == 0)) 803 sname = EVAX_BSS_NAME; 804 else if ((*sname == 'l') && (strcmp (sname, "link") == 0)) 805 sname = EVAX_LINK_NAME; 806 else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0)) 807 sname = EVAX_READONLY_NAME; 808 else if ((*sname == 'l') && (strcmp (sname, "literal") == 0)) 809 sname = EVAX_LITERAL_NAME; 810 else if ((*sname == 'c') && (strcmp (sname, "comm") == 0)) 811 sname = EVAX_COMMON_NAME; 812 else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0)) 813 sname = EVAX_LOCAL_NAME; 814 } 815 else 816 sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ); 817 818 _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1); 819 _bfd_vms_output_short (abfd, section->alignment_power & 0xff); 820 if (bfd_is_com_section (section)) 821 { 822 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); 823 } 824 else 825 { 826 new_flags = vms_esecflag_by_name (evax_section_flags, sname, 827 section->_raw_size > 0); 828 } 829 _bfd_vms_output_short (abfd, new_flags); 830 _bfd_vms_output_long (abfd, (unsigned long) section->_raw_size); 831 _bfd_vms_output_counted (abfd, sname); 832 _bfd_vms_output_flush (abfd); 833 834 last_index = section->index; 835 section = section->next; 836 } 837 838 /* output symbols */ 839 840 #if VMS_DEBUG 841 vms_debug (3, "%d symbols found\n", abfd->symcount); 842 #endif 843 844 bfd_set_start_address (abfd, (bfd_vma)-1); 845 846 for (symnum = 0; symnum < abfd->symcount; symnum++) 847 { 848 char *hash; 849 850 symbol = abfd->outsymbols[symnum]; 851 if (*(symbol->name) == '_') 852 { 853 if (strcmp (symbol->name, "__main") == 0) 854 bfd_set_start_address (abfd, (bfd_vma)symbol->value); 855 } 856 old_flags = symbol->flags; 857 858 if (old_flags & BSF_FILE) 859 continue; 860 861 if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 0) /* not xdef */ 862 && (!bfd_is_und_section (symbol->section))) /* and not xref */ 863 continue; /* dont output */ 864 865 /* 13 bytes egsd, max 64 chars name -> should be 77 bytes */ 866 867 if (_bfd_vms_output_check (abfd, 80) < 0) 868 { 869 _bfd_vms_output_pop (abfd); 870 _bfd_vms_output_end (abfd); 871 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); 872 _bfd_vms_output_long (abfd, 0); 873 _bfd_vms_output_push (abfd); /* prepare output for subrecords */ 874 } 875 876 _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1); 877 878 _bfd_vms_output_short (abfd, 0); /* data type, alignment */ 879 880 new_flags = 0; 881 882 if (old_flags & BSF_WEAK) 883 new_flags |= EGSY_S_V_WEAK; 884 if (bfd_is_com_section (symbol->section)) /* .comm */ 885 new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM); 886 887 if (old_flags & BSF_FUNCTION) 888 { 889 new_flags |= EGSY_S_V_NORM; 890 new_flags |= EGSY_S_V_REL; 891 } 892 if (old_flags & (BSF_GLOBAL|BSF_WEAK)) 893 { 894 new_flags |= EGSY_S_V_DEF; 895 if (!bfd_is_abs_section (symbol->section)) 896 new_flags |= EGSY_S_V_REL; 897 } 898 _bfd_vms_output_short (abfd, new_flags); 899 900 if (old_flags & (BSF_GLOBAL | BSF_WEAK)) /* symbol definition */ 901 { 902 uquad code_address = 0; 903 unsigned long ca_psindx = 0; 904 unsigned long psindx; 905 906 if ((old_flags & BSF_FUNCTION) && symbol->udata.p != NULL) 907 { 908 code_address = ((asymbol *) (symbol->udata.p))->value; 909 ca_psindx = ((asymbol *) (symbol->udata.p))->section->index; 910 } 911 psindx = symbol->section->index; 912 913 _bfd_vms_output_quad (abfd, symbol->value); 914 _bfd_vms_output_quad (abfd, code_address); 915 _bfd_vms_output_long (abfd, ca_psindx); 916 _bfd_vms_output_long (abfd, psindx); 917 } 918 hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ); 919 _bfd_vms_output_counted (abfd, hash); 920 921 _bfd_vms_output_flush (abfd); 922 923 } 924 925 _bfd_vms_output_alignment (abfd, 8); 926 _bfd_vms_output_pop (abfd); 927 _bfd_vms_output_end (abfd); 928 929 return 0; 930 } 931