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, 2004 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 11This program is free software; you can redistribute it and/or modify 12it under the terms of the GNU General Public License as published by 13the Free Software Foundation; either version 2 of the License, or 14(at your option) any later version. 15 16This program is distributed in the hope that it will be useful, 17but WITHOUT ANY WARRANTY; without even the implied warranty of 18MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19GNU General Public License for more details. 20 21You should have received a copy of the GNU General Public License 22along with this program; if not, write to the Free Software 23Foundation, 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 53struct 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 63static 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 88static 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 141static flagword vms_secflag_by_name PARAMS ((bfd *, struct sec_flags_struct *, char *, int)); 142static flagword vms_esecflag_by_name PARAMS ((struct sec_flags_struct *, char *, int)); 143 144/* Retrieve bfd section flags by name and size */ 145 146static flagword 147vms_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 175static flagword 176vms_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 203struct flagdescstruct { char *name; flagword value; }; 204 205/* Convert flag to printable string */ 206 207static char * 208flag2str(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 239int 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->size = bfd_getl32 (vms_rec + 4); /* allocation */ 362 new_flags = vms_secflag_by_name (abfd, vax_section_flags, name, 363 section->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->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->size < old_section->size) 405 { 406 (*_bfd_error_handler) 407 (_("Size mismatch section %s=%lx, %s=%lx"), 408 old_section->name, 409 (unsigned long) old_section->size, 410 section->name, 411 (unsigned long) section->size); 412 return -1; 413 } 414 else if (section->size > old_section->size) 415 { 416 section->contents = ((unsigned char *) 417 bfd_realloc (old_section->contents, 418 section->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->size)); 430 if (section->contents == NULL) 431 { 432 bfd_set_error (bfd_error_no_memory); 433 return -1; 434 } 435 } 436#if VMS_DEBUG 437 vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ", 438 section->index, name, old_flags, flag2str (gpsflagdesc, old_flags)); 439 vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n", 440 section->size, section->vma, section->contents); 441#endif 442 443 gsd_size = vms_rec[8] + 9; 444 445 psect_idx++; 446 } 447 break; 448 449 case GSD_S_C_EPM: 450 case GSD_S_C_EPMW: 451#if VMS_DEBUG 452 vms_debug(4, "gsd epm\n"); 453#endif 454 /*FALLTHRU*/ 455 case GSD_S_C_SYM: 456 case GSD_S_C_SYMW: 457 { 458 int name_offset = 0, value_offset = 0; 459 460 /* 461 * symbol specification (definition or reference) 462 */ 463 464#if VMS_DEBUG 465 vms_debug (4, "GSD_S_C_SYM(W)\n"); 466#endif 467 old_flags = bfd_getl16 (vms_rec + 2); 468 new_flags = BSF_NO_FLAGS; 469 470 if (old_flags & GSY_S_M_WEAK) 471 new_flags |= BSF_WEAK; 472 473 switch (gsd_type) 474 { 475 case GSD_S_C_EPM: 476 name_offset = 11; 477 value_offset = 5; 478 new_flags |= BSF_FUNCTION; 479 break; 480 case GSD_S_C_EPMW: 481 name_offset = 12; 482 value_offset = 6; 483 new_flags |= BSF_FUNCTION; 484 break; 485 case GSD_S_C_SYM: 486 if (old_flags & GSY_S_M_DEF) /* symbol definition */ 487 name_offset = 9; 488 else 489 name_offset = 4; 490 value_offset = 5; 491 break; 492 case GSD_S_C_SYMW: 493 if (old_flags & GSY_S_M_DEF) /* symbol definition */ 494 name_offset = 10; 495 else 496 name_offset = 5; 497 value_offset = 6; 498 break; 499 } 500 501 /* save symbol in vms_symbol_table */ 502 503 entry = _bfd_vms_enter_symbol (abfd, 504 _bfd_vms_save_counted_string (vms_rec + name_offset)); 505 if (entry == (vms_symbol_entry *)NULL) 506 { 507 bfd_set_error (bfd_error_no_memory); 508 return -1; 509 } 510 symbol = entry->symbol; 511 512 if (old_flags & GSY_S_M_DEF) /* symbol definition */ 513 { 514 int psect; 515 516 symbol->value = bfd_getl32 (vms_rec+value_offset); 517 if ((gsd_type == GSD_S_C_SYMW) 518 || (gsd_type == GSD_S_C_EPMW)) 519 psect = bfd_getl16 (vms_rec + value_offset - 2); 520 else 521 psect = vms_rec[value_offset-1]; 522 523 symbol->section = (asection *)psect; 524#if VMS_DEBUG 525 vms_debug(4, "gsd sym def #%d (%s, %d [%p], %04x=%s)\n", abfd->symcount, 526 symbol->name, (int)symbol->section, symbol->section, old_flags, flag2str(gsyflagdesc, old_flags)); 527#endif 528 } 529 else /* symbol reference */ 530 { 531 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME); 532#if VMS_DEBUG 533 vms_debug (4, "gsd sym ref #%d (%s, %s [%p], %04x=%s)\n", abfd->symcount, 534 symbol->name, symbol->section->name, symbol->section, old_flags, flag2str (gsyflagdesc, old_flags)); 535#endif 536 } 537 538 gsd_size = vms_rec[name_offset] + name_offset + 1; 539 symbol->flags = new_flags; 540 } 541 542 break; 543 544 case GSD_S_C_PRO: 545 case GSD_S_C_PROW: 546#if VMS_DEBUG 547 vms_debug(4, "gsd pro\n"); 548#endif 549 break; 550 case GSD_S_C_IDC: 551#if VMS_DEBUG 552 vms_debug(4, "gsd idc\n"); 553#endif 554 break; 555 case GSD_S_C_ENV: 556#if VMS_DEBUG 557 vms_debug(4, "gsd env\n"); 558#endif 559 break; 560 case GSD_S_C_LSY: 561#if VMS_DEBUG 562 vms_debug(4, "gsd lsy\n"); 563#endif 564 break; 565 case GSD_S_C_LEPM: 566#if VMS_DEBUG 567 vms_debug(4, "gsd lepm\n"); 568#endif 569 break; 570 case GSD_S_C_LPRO: 571#if VMS_DEBUG 572 vms_debug(4, "gsd lpro\n"); 573#endif 574 break; 575 case GSD_S_C_SPSC: 576#if VMS_DEBUG 577 vms_debug(4, "gsd spsc\n"); 578#endif 579 break; 580 case GSD_S_C_SYMV: 581#if VMS_DEBUG 582 vms_debug(4, "gsd symv\n"); 583#endif 584 break; 585 case GSD_S_C_EPMV: 586#if VMS_DEBUG 587 vms_debug(4, "gsd epmv\n"); 588#endif 589 break; 590 case GSD_S_C_PROV: 591#if VMS_DEBUG 592 vms_debug(4, "gsd prov\n"); 593#endif 594 break; 595 596 case EGSD_S_C_PSC + EVAX_OFFSET: 597 { 598 /* program section definition */ 599 600 name = _bfd_vms_save_counted_string (vms_rec+12); 601 section = bfd_make_section (abfd, name); 602 if (!section) 603 return -1; 604 old_flags = bfd_getl16 (vms_rec + 6); 605 section->size = bfd_getl32 (vms_rec + 8); /* allocation */ 606 new_flags = vms_secflag_by_name (abfd, evax_section_flags, name, 607 section->size > 0); 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->size; 618 section->contents = ((unsigned char *) 619 bfd_zmalloc (section->size)); 620 if (section->contents == NULL) 621 return -1; 622#if VMS_DEBUG 623 vms_debug(4, "egsd psc %d (%s, flags %04x=%s) ", 624 section->index, name, old_flags, flag2str(gpsflagdesc, old_flags)); 625 vms_debug(4, "%d bytes at 0x%08lx (mem %p)\n", 626 section->size, section->vma, section->contents); 627#endif 628 } 629 break; 630 631 case EGSD_S_C_SYM + EVAX_OFFSET: 632 { 633 /* symbol specification (definition or reference) */ 634 635 symbol = bfd_make_empty_symbol (abfd); 636 if (symbol == 0) 637 return -1; 638 639 old_flags = bfd_getl16 (vms_rec + 6); 640 new_flags = BSF_NO_FLAGS; 641 642 if (old_flags & EGSY_S_V_WEAK) 643 new_flags |= BSF_WEAK; 644 645 if (vms_rec[6] & EGSY_S_V_DEF) /* symbol definition */ 646 { 647 symbol->name = 648 _bfd_vms_save_counted_string (vms_rec+32); 649 if (old_flags & EGSY_S_V_NORM) 650 { /* proc def */ 651 new_flags |= BSF_FUNCTION; 652 } 653 symbol->value = bfd_getl64 (vms_rec+8); 654 symbol->section = (asection *) ((unsigned long) bfd_getl32 (vms_rec+28)); 655#if VMS_DEBUG 656 vms_debug(4, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount, 657 symbol->name, (int)symbol->section, old_flags, flag2str(gsyflagdesc, old_flags)); 658#endif 659 } 660 else /* symbol reference */ 661 { 662 symbol->name = 663 _bfd_vms_save_counted_string (vms_rec+8); 664#if VMS_DEBUG 665 vms_debug(4, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount, 666 symbol->name, old_flags, flag2str(gsyflagdesc, old_flags)); 667#endif 668 symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME); 669 } 670 671 symbol->flags = new_flags; 672 673 /* save symbol in vms_symbol_table */ 674 675 entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV(vms_symbol_table), 676 symbol->name, 677 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 724int 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->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 necessary 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, 825 section->size > 0); 826 } 827 _bfd_vms_output_short (abfd, new_flags); 828 _bfd_vms_output_long (abfd, (unsigned long) section->size); 829 _bfd_vms_output_counted (abfd, sname); 830 _bfd_vms_output_flush (abfd); 831 832 last_index = section->index; 833 section = section->next; 834 } 835 836 /* output symbols */ 837 838#if VMS_DEBUG 839 vms_debug (3, "%d symbols found\n", abfd->symcount); 840#endif 841 842 bfd_set_start_address (abfd, (bfd_vma)-1); 843 844 for (symnum = 0; symnum < abfd->symcount; symnum++) 845 { 846 char *hash; 847 848 symbol = abfd->outsymbols[symnum]; 849 if (*(symbol->name) == '_') 850 { 851 if (strcmp (symbol->name, "__main") == 0) 852 bfd_set_start_address (abfd, (bfd_vma)symbol->value); 853 } 854 old_flags = symbol->flags; 855 856 if (old_flags & BSF_FILE) 857 continue; 858 859 if (((old_flags & (BSF_GLOBAL|BSF_WEAK)) == 0) /* not xdef */ 860 && (!bfd_is_und_section (symbol->section))) /* and not xref */ 861 continue; /* dont output */ 862 863 /* 13 bytes egsd, max 64 chars name -> should be 77 bytes */ 864 865 if (_bfd_vms_output_check (abfd, 80) < 0) 866 { 867 _bfd_vms_output_pop (abfd); 868 _bfd_vms_output_end (abfd); 869 _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); 870 _bfd_vms_output_long (abfd, 0); 871 _bfd_vms_output_push (abfd); /* prepare output for subrecords */ 872 } 873 874 _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1); 875 876 _bfd_vms_output_short (abfd, 0); /* data type, alignment */ 877 878 new_flags = 0; 879 880 if (old_flags & BSF_WEAK) 881 new_flags |= EGSY_S_V_WEAK; 882 if (bfd_is_com_section (symbol->section)) /* .comm */ 883 new_flags |= (EGSY_S_V_WEAK|EGSY_S_V_COMM); 884 885 if (old_flags & BSF_FUNCTION) 886 { 887 new_flags |= EGSY_S_V_NORM; 888 new_flags |= EGSY_S_V_REL; 889 } 890 if (old_flags & (BSF_GLOBAL|BSF_WEAK)) 891 { 892 new_flags |= EGSY_S_V_DEF; 893 if (!bfd_is_abs_section (symbol->section)) 894 new_flags |= EGSY_S_V_REL; 895 } 896 _bfd_vms_output_short (abfd, new_flags); 897 898 if (old_flags & (BSF_GLOBAL | BSF_WEAK)) /* symbol definition */ 899 { 900 uquad code_address = 0; 901 unsigned long ca_psindx = 0; 902 unsigned long psindx; 903 904 if ((old_flags & BSF_FUNCTION) && symbol->udata.p != NULL) 905 { 906 code_address = ((asymbol *) (symbol->udata.p))->value; 907 ca_psindx = ((asymbol *) (symbol->udata.p))->section->index; 908 } 909 psindx = symbol->section->index; 910 911 _bfd_vms_output_quad (abfd, symbol->value); 912 _bfd_vms_output_quad (abfd, code_address); 913 _bfd_vms_output_long (abfd, ca_psindx); 914 _bfd_vms_output_long (abfd, psindx); 915 } 916 hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ); 917 _bfd_vms_output_counted (abfd, hash); 918 919 _bfd_vms_output_flush (abfd); 920 921 } 922 923 _bfd_vms_output_alignment (abfd, 8); 924 _bfd_vms_output_pop (abfd); 925 _bfd_vms_output_end (abfd); 926 927 return 0; 928} 929