| 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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 | /* Typical sections for vax object files. */ |
| 33 | |
| 34 | #define VAX_CODE_NAME "$CODE" |
| 35 | #define VAX_DATA_NAME "$DATA" |
| 36 | #define VAX_ADDRESS_DATA_NAME "$ADDRESS_DATA" |
| 37 | |
| 38 | /* Typical sections for evax object files. */ |
| 39 | |
| 40 | #define EVAX_ABS_NAME "$ABS$" |
| 41 | #define EVAX_CODE_NAME "$CODE$" |
| 42 | #define EVAX_LINK_NAME "$LINK$" |
| 43 | #define EVAX_DATA_NAME "$DATA$" |
| 44 | #define EVAX_BSS_NAME "$BSS$" |
| 45 | #define EVAX_READONLYADDR_NAME "$READONLY_ADDR$" |
| 46 | #define EVAX_READONLY_NAME "$READONLY$" |
| 47 | #define EVAX_LITERAL_NAME "$LITERAL$" |
| 48 | #define EVAX_COMMON_NAME "$COMMON$" |
| 49 | #define EVAX_LOCAL_NAME "$LOCAL$" |
| 50 | |
| 51 | struct sec_flags_struct |
| 52 | { |
| 53 | char *name; /* Name of section. */ |
| 54 | int vflags_always; |
| 55 | flagword flags_always; /* Flags we set always. */ |
| 56 | int vflags_hassize; |
| 57 | flagword flags_hassize; /* Flags we set if the section has a size > 0. */ |
| 58 | }; |
| 59 | |
| 60 | /* These flags are deccrtl/vaxcrtl (openVMS 6.2 VAX) compatible. */ |
| 61 | |
| 62 | static struct sec_flags_struct vax_section_flags[] = |
| 63 | { |
| 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 | { |
| 90 | { EVAX_ABS_NAME, |
| 91 | (EGPS_S_V_SHR), |
| 92 | (SEC_DATA), |
| 93 | (EGPS_S_V_SHR), |
| 94 | (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, |
| 95 | { EVAX_CODE_NAME, |
| 96 | (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_EXE), |
| 97 | (SEC_CODE), |
| 98 | (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_EXE), |
| 99 | (SEC_IN_MEMORY | SEC_CODE | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, |
| 100 | { EVAX_LITERAL_NAME, |
| 101 | (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD | EGPS_S_V_NOMOD), |
| 102 | (SEC_DATA | SEC_READONLY), |
| 103 | (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD), |
| 104 | (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, |
| 105 | { EVAX_LINK_NAME, |
| 106 | (EGPS_S_V_REL | EGPS_S_V_RD), |
| 107 | (SEC_DATA | SEC_READONLY), |
| 108 | (EGPS_S_V_REL | EGPS_S_V_RD), |
| 109 | (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, |
| 110 | { EVAX_DATA_NAME, |
| 111 | (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD), |
| 112 | (SEC_DATA), |
| 113 | (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), |
| 114 | (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, |
| 115 | { EVAX_BSS_NAME, |
| 116 | (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD), |
| 117 | (SEC_NO_FLAGS), |
| 118 | (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT | EGPS_S_V_NOMOD), |
| 119 | (SEC_IN_MEMORY | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, |
| 120 | { EVAX_READONLYADDR_NAME, |
| 121 | (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_RD), |
| 122 | (SEC_DATA | SEC_READONLY), |
| 123 | (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_RD), |
| 124 | (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, |
| 125 | { EVAX_READONLY_NAME, |
| 126 | (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD | EGPS_S_V_NOMOD), |
| 127 | (SEC_DATA | SEC_READONLY), |
| 128 | (EGPS_S_V_PIC | EGPS_S_V_REL | EGPS_S_V_SHR | EGPS_S_V_RD), |
| 129 | (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_READONLY | SEC_LOAD) }, |
| 130 | { EVAX_LOCAL_NAME, |
| 131 | (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), |
| 132 | (SEC_DATA), |
| 133 | (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), |
| 134 | (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }, |
| 135 | { NULL, |
| 136 | (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), |
| 137 | (SEC_DATA), |
| 138 | (EGPS_S_V_REL | EGPS_S_V_RD | EGPS_S_V_WRT), |
| 139 | (SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) } |
| 140 | }; |
| 141 | |
| 142 | /* Retrieve bfd section flags by name and size. */ |
| 143 | |
| 144 | static flagword |
| 145 | vms_secflag_by_name (bfd *abfd, |
| 146 | struct sec_flags_struct *section_flags, |
| 147 | char *name, |
| 148 | int hassize) |
| 149 | { |
| 150 | int i = 0; |
| 151 | |
| 152 | while (section_flags[i].name != NULL) |
| 153 | { |
| 154 | if ((PRIV (is_vax)? |
| 155 | strcasecmp (name, section_flags[i].name): |
| 156 | strcmp (name, section_flags[i].name)) == 0) |
| 157 | { |
| 158 | if (hassize) |
| 159 | return section_flags[i].flags_hassize; |
| 160 | else |
| 161 | return section_flags[i].flags_always; |
| 162 | } |
| 163 | i++; |
| 164 | } |
| 165 | if (hassize) |
| 166 | return section_flags[i].flags_hassize; |
| 167 | return section_flags[i].flags_always; |
| 168 | } |
| 169 | |
| 170 | /* Retrieve vms section flags by name and size. */ |
| 171 | |
| 172 | static flagword |
| 173 | vms_esecflag_by_name (struct sec_flags_struct *section_flags, |
| 174 | char *name, |
| 175 | int hassize) |
| 176 | { |
| 177 | int i = 0; |
| 178 | |
| 179 | while (section_flags[i].name != NULL) |
| 180 | { |
| 181 | if (strcmp (name, section_flags[i].name) == 0) |
| 182 | { |
| 183 | if (hassize) |
| 184 | return section_flags[i].vflags_hassize; |
| 185 | else |
| 186 | return section_flags[i].vflags_always; |
| 187 | } |
| 188 | i++; |
| 189 | } |
| 190 | if (hassize) |
| 191 | return section_flags[i].vflags_hassize; |
| 192 | return section_flags[i].vflags_always; |
| 193 | } |
| 194 | |
| 195 | #if VMS_DEBUG |
| 196 | |
| 197 | struct flagdescstruct { char *name; flagword value; }; |
| 198 | |
| 199 | /* Convert flag to printable string. */ |
| 200 | |
| 201 | static char * |
| 202 | flag2str (struct flagdescstruct * flagdesc, flagword flags) |
| 203 | { |
| 204 | static char res[64]; |
| 205 | int next = 0; |
| 206 | |
| 207 | res[0] = 0; |
| 208 | while (flagdesc->name != NULL) |
| 209 | { |
| 210 | if ((flags & flagdesc->value) != 0) |
| 211 | { |
| 212 | if (next) |
| 213 | strcat (res, ","); |
| 214 | else |
| 215 | next = 1; |
| 216 | strcat (res, flagdesc->name); |
| 217 | } |
| 218 | flagdesc++; |
| 219 | } |
| 220 | return res; |
| 221 | } |
| 222 | #endif |
| 223 | |
| 224 | /* Input routines. */ |
| 225 | |
| 226 | /* Process GSD/EGSD record |
| 227 | return 0 on success, -1 on error. */ |
| 228 | |
| 229 | int |
| 230 | _bfd_vms_slurp_gsd (bfd * abfd, int objtype) |
| 231 | { |
| 232 | #if VMS_DEBUG |
| 233 | static struct flagdescstruct gpsflagdesc[] = |
| 234 | { |
| 235 | { "PIC", 0x0001 }, |
| 236 | { "LIB", 0x0002 }, |
| 237 | { "OVR", 0x0004 }, |
| 238 | { "REL", 0x0008 }, |
| 239 | { "GBL", 0x0010 }, |
| 240 | { "SHR", 0x0020 }, |
| 241 | { "EXE", 0x0040 }, |
| 242 | { "RD", 0x0080 }, |
| 243 | { "WRT", 0x0100 }, |
| 244 | { "VEC", 0x0200 }, |
| 245 | { "NOMOD", 0x0400 }, |
| 246 | { "COM", 0x0800 }, |
| 247 | { NULL, 0 } |
| 248 | }; |
| 249 | |
| 250 | static struct flagdescstruct gsyflagdesc[] = |
| 251 | { |
| 252 | { "WEAK", 0x0001 }, |
| 253 | { "DEF", 0x0002 }, |
| 254 | { "UNI", 0x0004 }, |
| 255 | { "REL", 0x0008 }, |
| 256 | { "COMM", 0x0010 }, |
| 257 | { "VECEP", 0x0020 }, |
| 258 | { "NORM", 0x0040 }, |
| 259 | { NULL, 0 } |
| 260 | }; |
| 261 | #endif |
| 262 | |
| 263 | int gsd_type, gsd_size; |
| 264 | asection *section; |
| 265 | unsigned char *vms_rec; |
| 266 | flagword new_flags, old_flags; |
| 267 | char *name; |
| 268 | asymbol *symbol; |
| 269 | vms_symbol_entry *entry; |
| 270 | unsigned long base_addr; |
| 271 | unsigned long align_addr; |
| 272 | static unsigned int psect_idx = 0; |
| 273 | |
| 274 | #if VMS_DEBUG |
| 275 | vms_debug (2, "GSD/EGSD (%d/%x)\n", objtype, objtype); |
| 276 | #endif |
| 277 | |
| 278 | switch (objtype) |
| 279 | { |
| 280 | case EOBJ_S_C_EGSD: |
| 281 | PRIV (vms_rec) += 8; /* Skip type, size, l_temp. */ |
| 282 | PRIV (rec_size) -= 8; |
| 283 | break; |
| 284 | case OBJ_S_C_GSD: |
| 285 | PRIV (vms_rec) += 1; |
| 286 | PRIV (rec_size) -= 1; |
| 287 | break; |
| 288 | default: |
| 289 | return -1; |
| 290 | } |
| 291 | |
| 292 | /* Calculate base address for each section. */ |
| 293 | base_addr = 0L; |
| 294 | |
| 295 | abfd->symcount = 0; |
| 296 | |
| 297 | while (PRIV (rec_size) > 0) |
| 298 | { |
| 299 | vms_rec = PRIV (vms_rec); |
| 300 | |
| 301 | if (objtype == OBJ_S_C_GSD) |
| 302 | gsd_type = *vms_rec; |
| 303 | else |
| 304 | { |
| 305 | _bfd_vms_get_header_values (abfd, vms_rec, &gsd_type, &gsd_size); |
| 306 | gsd_type += EVAX_OFFSET; |
| 307 | } |
| 308 | |
| 309 | #if VMS_DEBUG |
| 310 | vms_debug (3, "gsd_type %d\n", gsd_type); |
| 311 | #endif |
| 312 | |
| 313 | switch (gsd_type) |
| 314 | { |
| 315 | case GSD_S_C_PSC: |
| 316 | { |
| 317 | /* Program section definition. */ |
| 318 | asection *old_section = 0; |
| 319 | |
| 320 | #if VMS_DEBUG |
| 321 | vms_debug (4, "GSD_S_C_PSC\n"); |
| 322 | #endif |
| 323 | /* If this section isn't a bfd section. */ |
| 324 | if (PRIV (is_vax) && (psect_idx < (abfd->section_count-1))) |
| 325 | { |
| 326 | /* Check for temporary section from TIR record. */ |
| 327 | if (psect_idx < PRIV (section_count)) |
| 328 | old_section = PRIV (sections)[psect_idx]; |
| 329 | else |
| 330 | old_section = 0; |
| 331 | } |
| 332 | |
| 333 | name = _bfd_vms_save_counted_string (vms_rec + 8); |
| 334 | section = bfd_make_section (abfd, name); |
| 335 | if (!section) |
| 336 | { |
| 337 | (*_bfd_error_handler) (_("bfd_make_section (%s) failed"), |
| 338 | name); |
| 339 | return -1; |
| 340 | } |
| 341 | old_flags = bfd_getl16 (vms_rec + 2); |
| 342 | section->size = bfd_getl32 (vms_rec + 4); /* allocation */ |
| 343 | new_flags = vms_secflag_by_name (abfd, vax_section_flags, name, |
| 344 | section->size > 0); |
| 345 | if (old_flags & EGPS_S_V_REL) |
| 346 | new_flags |= SEC_RELOC; |
| 347 | if (old_flags & GPS_S_M_OVR) |
| 348 | new_flags |= SEC_IS_COMMON; |
| 349 | if (!bfd_set_section_flags (abfd, section, new_flags)) |
| 350 | { |
| 351 | (*_bfd_error_handler) |
| 352 | (_("bfd_set_section_flags (%s, %x) failed"), |
| 353 | name, new_flags); |
| 354 | return -1; |
| 355 | } |
| 356 | section->alignment_power = vms_rec[1]; |
| 357 | align_addr = (1 << section->alignment_power); |
| 358 | if ((base_addr % align_addr) != 0) |
| 359 | base_addr += (align_addr - (base_addr % align_addr)); |
| 360 | section->vma = (bfd_vma)base_addr; |
| 361 | base_addr += section->size; |
| 362 | |
| 363 | /* Global section is common symbol. */ |
| 364 | |
| 365 | if (old_flags & GPS_S_M_GBL) |
| 366 | { |
| 367 | entry = _bfd_vms_enter_symbol (abfd, name); |
| 368 | if (entry == NULL) |
| 369 | { |
| 370 | bfd_set_error (bfd_error_no_memory); |
| 371 | return -1; |
| 372 | } |
| 373 | symbol = entry->symbol; |
| 374 | |
| 375 | symbol->value = 0; |
| 376 | symbol->section = section; |
| 377 | symbol->flags = (BSF_GLOBAL | BSF_SECTION_SYM | BSF_OLD_COMMON); |
| 378 | } |
| 379 | |
| 380 | /* Copy saved contents if old_section set. */ |
| 381 | if (old_section != 0) |
| 382 | { |
| 383 | section->contents = old_section->contents; |
| 384 | if (section->size < old_section->size) |
| 385 | { |
| 386 | (*_bfd_error_handler) |
| 387 | (_("Size mismatch section %s=%lx, %s=%lx"), |
| 388 | old_section->name, |
| 389 | (unsigned long) old_section->size, |
| 390 | section->name, |
| 391 | (unsigned long) section->size); |
| 392 | return -1; |
| 393 | } |
| 394 | else if (section->size > old_section->size) |
| 395 | { |
| 396 | section->contents = bfd_realloc (old_section->contents, |
| 397 | section->size); |
| 398 | if (section->contents == NULL) |
| 399 | { |
| 400 | bfd_set_error (bfd_error_no_memory); |
| 401 | return -1; |
| 402 | } |
| 403 | } |
| 404 | } |
| 405 | else |
| 406 | { |
| 407 | section->contents = bfd_zmalloc (section->size); |
| 408 | if (section->contents == NULL) |
| 409 | { |
| 410 | bfd_set_error (bfd_error_no_memory); |
| 411 | return -1; |
| 412 | } |
| 413 | } |
| 414 | #if VMS_DEBUG |
| 415 | vms_debug (4, "gsd psc %d (%s, flags %04x=%s) ", |
| 416 | section->index, name, old_flags, flag2str (gpsflagdesc, old_flags)); |
| 417 | vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n", |
| 418 | section->size, section->vma, section->contents); |
| 419 | #endif |
| 420 | |
| 421 | gsd_size = vms_rec[8] + 9; |
| 422 | |
| 423 | psect_idx++; |
| 424 | } |
| 425 | break; |
| 426 | |
| 427 | case GSD_S_C_EPM: |
| 428 | case GSD_S_C_EPMW: |
| 429 | #if VMS_DEBUG |
| 430 | vms_debug (4, "gsd epm\n"); |
| 431 | #endif |
| 432 | /* Fall through. */ |
| 433 | case GSD_S_C_SYM: |
| 434 | case GSD_S_C_SYMW: |
| 435 | { |
| 436 | int name_offset = 0, value_offset = 0; |
| 437 | |
| 438 | /* Symbol specification (definition or reference). */ |
| 439 | #if VMS_DEBUG |
| 440 | vms_debug (4, "GSD_S_C_SYM(W)\n"); |
| 441 | #endif |
| 442 | old_flags = bfd_getl16 (vms_rec + 2); |
| 443 | new_flags = BSF_NO_FLAGS; |
| 444 | |
| 445 | if (old_flags & GSY_S_M_WEAK) |
| 446 | new_flags |= BSF_WEAK; |
| 447 | |
| 448 | switch (gsd_type) |
| 449 | { |
| 450 | case GSD_S_C_EPM: |
| 451 | name_offset = 11; |
| 452 | value_offset = 5; |
| 453 | new_flags |= BSF_FUNCTION; |
| 454 | break; |
| 455 | case GSD_S_C_EPMW: |
| 456 | name_offset = 12; |
| 457 | value_offset = 6; |
| 458 | new_flags |= BSF_FUNCTION; |
| 459 | break; |
| 460 | case GSD_S_C_SYM: |
| 461 | if (old_flags & GSY_S_M_DEF) /* Symbol definition. */ |
| 462 | name_offset = 9; |
| 463 | else |
| 464 | name_offset = 4; |
| 465 | value_offset = 5; |
| 466 | break; |
| 467 | case GSD_S_C_SYMW: |
| 468 | if (old_flags & GSY_S_M_DEF) /* Symbol definition. */ |
| 469 | name_offset = 10; |
| 470 | else |
| 471 | name_offset = 5; |
| 472 | value_offset = 6; |
| 473 | break; |
| 474 | } |
| 475 | |
| 476 | /* Save symbol in vms_symbol_table. */ |
| 477 | entry = _bfd_vms_enter_symbol |
| 478 | (abfd, _bfd_vms_save_counted_string (vms_rec + name_offset)); |
| 479 | if (entry == NULL) |
| 480 | { |
| 481 | bfd_set_error (bfd_error_no_memory); |
| 482 | return -1; |
| 483 | } |
| 484 | symbol = entry->symbol; |
| 485 | |
| 486 | if (old_flags & GSY_S_M_DEF) |
| 487 | { |
| 488 | /* Symbol definition. */ |
| 489 | int psect; |
| 490 | |
| 491 | symbol->value = bfd_getl32 (vms_rec + value_offset); |
| 492 | if ((gsd_type == GSD_S_C_SYMW) |
| 493 | || (gsd_type == GSD_S_C_EPMW)) |
| 494 | psect = bfd_getl16 (vms_rec + value_offset - 2); |
| 495 | else |
| 496 | psect = vms_rec[value_offset-1]; |
| 497 | |
| 498 | symbol->section = (asection *) (size_t) psect; |
| 499 | #if VMS_DEBUG |
| 500 | vms_debug (4, "gsd sym def #%d (%s, %d [%p], %04x=%s)\n", abfd->symcount, |
| 501 | symbol->name, (int)symbol->section, symbol->section, old_flags, flag2str (gsyflagdesc, old_flags)); |
| 502 | #endif |
| 503 | } |
| 504 | else |
| 505 | { |
| 506 | /* Symbol reference. */ |
| 507 | symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME); |
| 508 | #if VMS_DEBUG |
| 509 | vms_debug (4, "gsd sym ref #%d (%s, %s [%p], %04x=%s)\n", |
| 510 | abfd->symcount, symbol->name, symbol->section->name, |
| 511 | symbol->section, old_flags, flag2str (gsyflagdesc, old_flags)); |
| 512 | #endif |
| 513 | } |
| 514 | |
| 515 | gsd_size = vms_rec[name_offset] + name_offset + 1; |
| 516 | symbol->flags = new_flags; |
| 517 | } |
| 518 | |
| 519 | break; |
| 520 | |
| 521 | case GSD_S_C_PRO: |
| 522 | case GSD_S_C_PROW: |
| 523 | #if VMS_DEBUG |
| 524 | vms_debug (4, "gsd pro\n"); |
| 525 | #endif |
| 526 | break; |
| 527 | case GSD_S_C_IDC: |
| 528 | #if VMS_DEBUG |
| 529 | vms_debug (4, "gsd idc\n"); |
| 530 | #endif |
| 531 | break; |
| 532 | case GSD_S_C_ENV: |
| 533 | #if VMS_DEBUG |
| 534 | vms_debug (4, "gsd env\n"); |
| 535 | #endif |
| 536 | break; |
| 537 | case GSD_S_C_LSY: |
| 538 | #if VMS_DEBUG |
| 539 | vms_debug (4, "gsd lsy\n"); |
| 540 | #endif |
| 541 | break; |
| 542 | case GSD_S_C_LEPM: |
| 543 | #if VMS_DEBUG |
| 544 | vms_debug (4, "gsd lepm\n"); |
| 545 | #endif |
| 546 | break; |
| 547 | case GSD_S_C_LPRO: |
| 548 | #if VMS_DEBUG |
| 549 | vms_debug (4, "gsd lpro\n"); |
| 550 | #endif |
| 551 | break; |
| 552 | case GSD_S_C_SPSC: |
| 553 | #if VMS_DEBUG |
| 554 | vms_debug (4, "gsd spsc\n"); |
| 555 | #endif |
| 556 | break; |
| 557 | case GSD_S_C_SYMV: |
| 558 | #if VMS_DEBUG |
| 559 | vms_debug (4, "gsd symv\n"); |
| 560 | #endif |
| 561 | break; |
| 562 | case GSD_S_C_EPMV: |
| 563 | #if VMS_DEBUG |
| 564 | vms_debug (4, "gsd epmv\n"); |
| 565 | #endif |
| 566 | break; |
| 567 | case GSD_S_C_PROV: |
| 568 | #if VMS_DEBUG |
| 569 | vms_debug (4, "gsd prov\n"); |
| 570 | #endif |
| 571 | break; |
| 572 | |
| 573 | case EGSD_S_C_PSC + EVAX_OFFSET: |
| 574 | { |
| 575 | /* Program section definition. */ |
| 576 | name = _bfd_vms_save_counted_string (vms_rec + 12); |
| 577 | section = bfd_make_section (abfd, name); |
| 578 | if (!section) |
| 579 | return -1; |
| 580 | old_flags = bfd_getl16 (vms_rec + 6); |
| 581 | section->size = bfd_getl32 (vms_rec + 8); /* Allocation. */ |
| 582 | new_flags = vms_secflag_by_name (abfd, evax_section_flags, name, |
| 583 | section->size > 0); |
| 584 | if (old_flags & EGPS_S_V_REL) |
| 585 | new_flags |= SEC_RELOC; |
| 586 | if (!bfd_set_section_flags (abfd, section, new_flags)) |
| 587 | return -1; |
| 588 | section->alignment_power = vms_rec[4]; |
| 589 | align_addr = (1 << section->alignment_power); |
| 590 | if ((base_addr % align_addr) != 0) |
| 591 | base_addr += (align_addr - (base_addr % align_addr)); |
| 592 | section->vma = (bfd_vma)base_addr; |
| 593 | base_addr += section->size; |
| 594 | section->contents = bfd_zmalloc (section->size); |
| 595 | if (section->contents == NULL) |
| 596 | return -1; |
| 597 | #if VMS_DEBUG |
| 598 | vms_debug (4, "egsd psc %d (%s, flags %04x=%s) ", |
| 599 | section->index, name, old_flags, flag2str (gpsflagdesc, old_flags)); |
| 600 | vms_debug (4, "%d bytes at 0x%08lx (mem %p)\n", |
| 601 | section->size, section->vma, section->contents); |
| 602 | #endif |
| 603 | } |
| 604 | break; |
| 605 | |
| 606 | case EGSD_S_C_SYM + EVAX_OFFSET: |
| 607 | { |
| 608 | /* Symbol specification (definition or reference). */ |
| 609 | symbol = bfd_make_empty_symbol (abfd); |
| 610 | if (symbol == 0) |
| 611 | return -1; |
| 612 | |
| 613 | old_flags = bfd_getl16 (vms_rec + 6); |
| 614 | new_flags = BSF_NO_FLAGS; |
| 615 | |
| 616 | if (old_flags & EGSY_S_V_WEAK) |
| 617 | new_flags |= BSF_WEAK; |
| 618 | |
| 619 | if (vms_rec[6] & EGSY_S_V_DEF) |
| 620 | { |
| 621 | /* Symbol definition. */ |
| 622 | symbol->name = _bfd_vms_save_counted_string (vms_rec + 32); |
| 623 | if (old_flags & EGSY_S_V_NORM) |
| 624 | /* Proc def. */ |
| 625 | new_flags |= BSF_FUNCTION; |
| 626 | |
| 627 | symbol->value = bfd_getl64 (vms_rec + 8); |
| 628 | symbol->section = (asection *) ((unsigned long) bfd_getl32 (vms_rec + 28)); |
| 629 | #if VMS_DEBUG |
| 630 | vms_debug (4, "egsd sym def #%d (%s, %d, %04x=%s)\n", abfd->symcount, |
| 631 | symbol->name, (int) symbol->section, old_flags, |
| 632 | flag2str (gsyflagdesc, old_flags)); |
| 633 | #endif |
| 634 | } |
| 635 | else |
| 636 | { |
| 637 | /* Symbol reference. */ |
| 638 | symbol->name = _bfd_vms_save_counted_string (vms_rec + 8); |
| 639 | #if VMS_DEBUG |
| 640 | vms_debug (4, "egsd sym ref #%d (%s, %04x=%s)\n", abfd->symcount, |
| 641 | symbol->name, old_flags, flag2str (gsyflagdesc, old_flags)); |
| 642 | #endif |
| 643 | symbol->section = bfd_make_section (abfd, BFD_UND_SECTION_NAME); |
| 644 | } |
| 645 | |
| 646 | symbol->flags = new_flags; |
| 647 | |
| 648 | /* Save symbol in vms_symbol_table. */ |
| 649 | entry = (vms_symbol_entry *) bfd_hash_lookup (PRIV (vms_symbol_table), |
| 650 | symbol->name, |
| 651 | TRUE, FALSE); |
| 652 | if (entry == NULL) |
| 653 | { |
| 654 | bfd_set_error (bfd_error_no_memory); |
| 655 | return -1; |
| 656 | } |
| 657 | |
| 658 | if (entry->symbol != NULL) |
| 659 | { |
| 660 | /* FIXME ?, DEC C generates this. */ |
| 661 | #if VMS_DEBUG |
| 662 | vms_debug (4, "EGSD_S_C_SYM: duplicate \"%s\"\n", symbol->name); |
| 663 | #endif |
| 664 | } |
| 665 | else |
| 666 | { |
| 667 | entry->symbol = symbol; |
| 668 | PRIV (gsd_sym_count)++; |
| 669 | abfd->symcount++; |
| 670 | } |
| 671 | } |
| 672 | break; |
| 673 | |
| 674 | case EGSD_S_C_IDC + EVAX_OFFSET: |
| 675 | break; |
| 676 | |
| 677 | default: |
| 678 | (*_bfd_error_handler) (_("unknown gsd/egsd subtype %d"), gsd_type); |
| 679 | bfd_set_error (bfd_error_bad_value); |
| 680 | return -1; |
| 681 | } |
| 682 | |
| 683 | PRIV (rec_size) -= gsd_size; |
| 684 | PRIV (vms_rec) += gsd_size; |
| 685 | } |
| 686 | |
| 687 | if (abfd->symcount > 0) |
| 688 | abfd->flags |= HAS_SYMS; |
| 689 | |
| 690 | return 0; |
| 691 | } |
| 692 | |
| 693 | /* Output routines. */ |
| 694 | |
| 695 | /* Write section and symbol directory of bfd abfd. */ |
| 696 | |
| 697 | int |
| 698 | _bfd_vms_write_gsd (bfd *abfd, int objtype ATTRIBUTE_UNUSED) |
| 699 | { |
| 700 | asection *section; |
| 701 | asymbol *symbol; |
| 702 | unsigned int symnum; |
| 703 | int last_index = -1; |
| 704 | char dummy_name[10]; |
| 705 | char *sname; |
| 706 | flagword new_flags, old_flags; |
| 707 | |
| 708 | #if VMS_DEBUG |
| 709 | vms_debug (2, "vms_write_gsd (%p, %d)\n", abfd, objtype); |
| 710 | #endif |
| 711 | |
| 712 | /* Output sections. */ |
| 713 | section = abfd->sections; |
| 714 | #if VMS_DEBUG |
| 715 | vms_debug (3, "%d sections found\n", abfd->section_count); |
| 716 | #endif |
| 717 | |
| 718 | /* Egsd is quadword aligned. */ |
| 719 | _bfd_vms_output_alignment (abfd, 8); |
| 720 | |
| 721 | _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); |
| 722 | _bfd_vms_output_long (abfd, 0); |
| 723 | /* Prepare output for subrecords. */ |
| 724 | _bfd_vms_output_push (abfd); |
| 725 | |
| 726 | while (section != 0) |
| 727 | { |
| 728 | #if VMS_DEBUG |
| 729 | vms_debug (3, "Section #%d %s, %d bytes\n", section->index, section->name, (int)section->size); |
| 730 | #endif |
| 731 | |
| 732 | /* 13 bytes egsd, max 31 chars name -> should be 44 bytes. */ |
| 733 | if (_bfd_vms_output_check (abfd, 64) < 0) |
| 734 | { |
| 735 | _bfd_vms_output_pop (abfd); |
| 736 | _bfd_vms_output_end (abfd); |
| 737 | _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); |
| 738 | _bfd_vms_output_long (abfd, 0); |
| 739 | /* Prepare output for subrecords. */ |
| 740 | _bfd_vms_output_push (abfd); |
| 741 | } |
| 742 | |
| 743 | /* Create dummy sections to keep consecutive indices. */ |
| 744 | while (section->index - last_index > 1) |
| 745 | { |
| 746 | #if VMS_DEBUG |
| 747 | vms_debug (3, "index %d, last %d\n", section->index, last_index); |
| 748 | #endif |
| 749 | _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1); |
| 750 | _bfd_vms_output_short (abfd, 0); |
| 751 | _bfd_vms_output_short (abfd, 0); |
| 752 | _bfd_vms_output_long (abfd, 0); |
| 753 | sprintf (dummy_name, ".DUMMY%02d", last_index); |
| 754 | _bfd_vms_output_counted (abfd, dummy_name); |
| 755 | _bfd_vms_output_flush (abfd); |
| 756 | last_index++; |
| 757 | } |
| 758 | |
| 759 | /* Don't know if this is necessary for the linker but for now it keeps |
| 760 | vms_slurp_gsd happy */ |
| 761 | sname = (char *)section->name; |
| 762 | if (*sname == '.') |
| 763 | { |
| 764 | sname++; |
| 765 | if ((*sname == 't') && (strcmp (sname, "text") == 0)) |
| 766 | sname = PRIV (is_vax)?VAX_CODE_NAME:EVAX_CODE_NAME; |
| 767 | else if ((*sname == 'd') && (strcmp (sname, "data") == 0)) |
| 768 | sname = PRIV (is_vax)?VAX_DATA_NAME:EVAX_DATA_NAME; |
| 769 | else if ((*sname == 'b') && (strcmp (sname, "bss") == 0)) |
| 770 | sname = EVAX_BSS_NAME; |
| 771 | else if ((*sname == 'l') && (strcmp (sname, "link") == 0)) |
| 772 | sname = EVAX_LINK_NAME; |
| 773 | else if ((*sname == 'r') && (strcmp (sname, "rdata") == 0)) |
| 774 | sname = EVAX_READONLY_NAME; |
| 775 | else if ((*sname == 'l') && (strcmp (sname, "literal") == 0)) |
| 776 | sname = EVAX_LITERAL_NAME; |
| 777 | else if ((*sname == 'c') && (strcmp (sname, "comm") == 0)) |
| 778 | sname = EVAX_COMMON_NAME; |
| 779 | else if ((*sname == 'l') && (strcmp (sname, "lcomm") == 0)) |
| 780 | sname = EVAX_LOCAL_NAME; |
| 781 | } |
| 782 | else |
| 783 | sname = _bfd_vms_length_hash_symbol (abfd, sname, EOBJ_S_C_SECSIZ); |
| 784 | |
| 785 | _bfd_vms_output_begin (abfd, EGSD_S_C_PSC, -1); |
| 786 | _bfd_vms_output_short (abfd, section->alignment_power & 0xff); |
| 787 | if (bfd_is_com_section (section)) |
| 788 | 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); |
| 789 | else |
| 790 | new_flags = vms_esecflag_by_name (evax_section_flags, sname, |
| 791 | section->size > 0); |
| 792 | |
| 793 | _bfd_vms_output_short (abfd, new_flags); |
| 794 | _bfd_vms_output_long (abfd, (unsigned long) section->size); |
| 795 | _bfd_vms_output_counted (abfd, sname); |
| 796 | _bfd_vms_output_flush (abfd); |
| 797 | |
| 798 | last_index = section->index; |
| 799 | section = section->next; |
| 800 | } |
| 801 | |
| 802 | /* Output symbols. */ |
| 803 | #if VMS_DEBUG |
| 804 | vms_debug (3, "%d symbols found\n", abfd->symcount); |
| 805 | #endif |
| 806 | |
| 807 | bfd_set_start_address (abfd, (bfd_vma) -1); |
| 808 | |
| 809 | for (symnum = 0; symnum < abfd->symcount; symnum++) |
| 810 | { |
| 811 | char *hash; |
| 812 | |
| 813 | symbol = abfd->outsymbols[symnum]; |
| 814 | if (*(symbol->name) == '_') |
| 815 | { |
| 816 | if (strcmp (symbol->name, "__main") == 0) |
| 817 | bfd_set_start_address (abfd, (bfd_vma)symbol->value); |
| 818 | } |
| 819 | old_flags = symbol->flags; |
| 820 | |
| 821 | if (old_flags & BSF_FILE) |
| 822 | continue; |
| 823 | |
| 824 | if (((old_flags & (BSF_GLOBAL | BSF_WEAK)) == 0) /* Not xdef... */ |
| 825 | && (!bfd_is_und_section (symbol->section))) /* ...and not xref. */ |
| 826 | continue; /* Dont output. */ |
| 827 | |
| 828 | /* 13 bytes egsd, max 64 chars name -> should be 77 bytes. */ |
| 829 | if (_bfd_vms_output_check (abfd, 80) < 0) |
| 830 | { |
| 831 | _bfd_vms_output_pop (abfd); |
| 832 | _bfd_vms_output_end (abfd); |
| 833 | _bfd_vms_output_begin (abfd, EOBJ_S_C_EGSD, -1); |
| 834 | _bfd_vms_output_long (abfd, 0); |
| 835 | /* Prepare output for subrecords. */ |
| 836 | _bfd_vms_output_push (abfd); |
| 837 | } |
| 838 | |
| 839 | _bfd_vms_output_begin (abfd, EGSD_S_C_SYM, -1); |
| 840 | |
| 841 | /* Data type, alignment. */ |
| 842 | _bfd_vms_output_short (abfd, 0); |
| 843 | |
| 844 | new_flags = 0; |
| 845 | |
| 846 | if (old_flags & BSF_WEAK) |
| 847 | new_flags |= EGSY_S_V_WEAK; |
| 848 | if (bfd_is_com_section (symbol->section)) |
| 849 | new_flags |= (EGSY_S_V_WEAK | EGSY_S_V_COMM); |
| 850 | |
| 851 | if (old_flags & BSF_FUNCTION) |
| 852 | { |
| 853 | new_flags |= EGSY_S_V_NORM; |
| 854 | new_flags |= EGSY_S_V_REL; |
| 855 | } |
| 856 | if (old_flags & (BSF_GLOBAL | BSF_WEAK)) |
| 857 | { |
| 858 | new_flags |= EGSY_S_V_DEF; |
| 859 | if (!bfd_is_abs_section (symbol->section)) |
| 860 | new_flags |= EGSY_S_V_REL; |
| 861 | } |
| 862 | _bfd_vms_output_short (abfd, new_flags); |
| 863 | |
| 864 | if (old_flags & (BSF_GLOBAL | BSF_WEAK)) |
| 865 | { |
| 866 | /* Symbol definition. */ |
| 867 | uquad code_address = 0; |
| 868 | unsigned long ca_psindx = 0; |
| 869 | unsigned long psindx; |
| 870 | |
| 871 | if ((old_flags & BSF_FUNCTION) && symbol->udata.p != NULL) |
| 872 | { |
| 873 | code_address = ((asymbol *) (symbol->udata.p))->value; |
| 874 | ca_psindx = ((asymbol *) (symbol->udata.p))->section->index; |
| 875 | } |
| 876 | psindx = symbol->section->index; |
| 877 | |
| 878 | _bfd_vms_output_quad (abfd, symbol->value); |
| 879 | _bfd_vms_output_quad (abfd, code_address); |
| 880 | _bfd_vms_output_long (abfd, ca_psindx); |
| 881 | _bfd_vms_output_long (abfd, psindx); |
| 882 | } |
| 883 | hash = _bfd_vms_length_hash_symbol (abfd, symbol->name, EOBJ_S_C_SYMSIZ); |
| 884 | _bfd_vms_output_counted (abfd, hash); |
| 885 | |
| 886 | _bfd_vms_output_flush (abfd); |
| 887 | |
| 888 | } |
| 889 | |
| 890 | _bfd_vms_output_alignment (abfd, 8); |
| 891 | _bfd_vms_output_pop (abfd); |
| 892 | _bfd_vms_output_end (abfd); |
| 893 | |
| 894 | return 0; |
| 895 | } |