| 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, 2003, 2004, 2005 |
| 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->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 *) (size_t) 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 | |
| 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->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 | } |