| 1 | /* BFD back-end for IBM RS/6000 "XCOFF" files. |
| 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. |
| 3 | FIXME: Can someone provide a transliteration of this name into ASCII? |
| 4 | Using the following chars caused a compiler warning on HIUX (so I replaced |
| 5 | them with octal escapes), and isn't useful without an understanding of what |
| 6 | character set it is. |
| 7 | Written by Metin G. Ozisik, Mimi Ph\373\364ng-Th\345o V\365, |
| 8 | and John Gilmore. |
| 9 | Archive support from Damon A. Permezel. |
| 10 | Contributed by IBM Corporation and Cygnus Support. |
| 11 | |
| 12 | This file is part of BFD, the Binary File Descriptor library. |
| 13 | |
| 14 | This program is free software; you can redistribute it and/or modify |
| 15 | it under the terms of the GNU General Public License as published by |
| 16 | the Free Software Foundation; either version 2 of the License, or |
| 17 | (at your option) any later version. |
| 18 | |
| 19 | This program is distributed in the hope that it will be useful, |
| 20 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | GNU General Public License for more details. |
| 23 | |
| 24 | You should have received a copy of the GNU General Public License |
| 25 | along with this program; if not, write to the Free Software |
| 26 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 27 | |
| 28 | /* Internalcoff.h and coffcode.h modify themselves based on this flag. */ |
| 29 | #define RS6000COFF_C 1 |
| 30 | |
| 31 | #include "bfd.h" |
| 32 | #include "sysdep.h" |
| 33 | #include "libbfd.h" |
| 34 | #include "coff/internal.h" |
| 35 | #include "coff/rs6000.h" |
| 36 | #include "libcoff.h" |
| 37 | |
| 38 | /* The main body of code is in coffcode.h. */ |
| 39 | |
| 40 | static boolean xcoff_mkobject PARAMS ((bfd *)); |
| 41 | static boolean xcoff_copy_private_bfd_data PARAMS ((bfd *, bfd *)); |
| 42 | static boolean xcoff_is_local_label_name PARAMS ((bfd *, const char *)); |
| 43 | static void xcoff_rtype2howto |
| 44 | PARAMS ((arelent *, struct internal_reloc *)); |
| 45 | static reloc_howto_type *xcoff_reloc_type_lookup |
| 46 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| 47 | static boolean xcoff_slurp_armap PARAMS ((bfd *)); |
| 48 | static const bfd_target *xcoff_archive_p PARAMS ((bfd *)); |
| 49 | static PTR xcoff_read_ar_hdr PARAMS ((bfd *)); |
| 50 | static bfd *xcoff_openr_next_archived_file PARAMS ((bfd *, bfd *)); |
| 51 | static int xcoff_generic_stat_arch_elt PARAMS ((bfd *, struct stat *)); |
| 52 | static const char *normalize_filename PARAMS ((bfd *)); |
| 53 | static boolean xcoff_write_armap |
| 54 | PARAMS ((bfd *, unsigned int, struct orl *, unsigned int, int)); |
| 55 | static boolean xcoff_write_archive_contents PARAMS ((bfd *)); |
| 56 | \f |
| 57 | /* We use our own tdata type. Its first field is the COFF tdata type, |
| 58 | so the COFF routines are compatible. */ |
| 59 | |
| 60 | static boolean |
| 61 | xcoff_mkobject (abfd) |
| 62 | bfd *abfd; |
| 63 | { |
| 64 | coff_data_type *coff; |
| 65 | |
| 66 | abfd->tdata.xcoff_obj_data = |
| 67 | ((struct xcoff_tdata *) |
| 68 | bfd_zalloc (abfd, sizeof (struct xcoff_tdata))); |
| 69 | if (abfd->tdata.xcoff_obj_data == NULL) |
| 70 | return false; |
| 71 | coff = coff_data (abfd); |
| 72 | coff->symbols = (coff_symbol_type *) NULL; |
| 73 | coff->conversion_table = (unsigned int *) NULL; |
| 74 | coff->raw_syments = (struct coff_ptr_struct *) NULL; |
| 75 | coff->relocbase = 0; |
| 76 | |
| 77 | xcoff_data (abfd)->modtype = ('1' << 8) | 'L'; |
| 78 | |
| 79 | /* We set cputype to -1 to indicate that it has not been |
| 80 | initialized. */ |
| 81 | xcoff_data (abfd)->cputype = -1; |
| 82 | |
| 83 | xcoff_data (abfd)->csects = NULL; |
| 84 | xcoff_data (abfd)->debug_indices = NULL; |
| 85 | |
| 86 | return true; |
| 87 | } |
| 88 | |
| 89 | /* Copy XCOFF data from one BFD to another. */ |
| 90 | |
| 91 | static boolean |
| 92 | xcoff_copy_private_bfd_data (ibfd, obfd) |
| 93 | bfd *ibfd; |
| 94 | bfd *obfd; |
| 95 | { |
| 96 | struct xcoff_tdata *ix, *ox; |
| 97 | asection *sec; |
| 98 | |
| 99 | if (ibfd->xvec != obfd->xvec) |
| 100 | return true; |
| 101 | ix = xcoff_data (ibfd); |
| 102 | ox = xcoff_data (obfd); |
| 103 | ox->full_aouthdr = ix->full_aouthdr; |
| 104 | ox->toc = ix->toc; |
| 105 | if (ix->sntoc == 0) |
| 106 | ox->sntoc = 0; |
| 107 | else |
| 108 | { |
| 109 | sec = coff_section_from_bfd_index (ibfd, ix->sntoc); |
| 110 | if (sec == NULL) |
| 111 | ox->sntoc = 0; |
| 112 | else |
| 113 | ox->sntoc = sec->output_section->target_index; |
| 114 | } |
| 115 | if (ix->snentry == 0) |
| 116 | ox->snentry = 0; |
| 117 | else |
| 118 | { |
| 119 | sec = coff_section_from_bfd_index (ibfd, ix->snentry); |
| 120 | if (sec == NULL) |
| 121 | ox->snentry = 0; |
| 122 | else |
| 123 | ox->snentry = sec->output_section->target_index; |
| 124 | } |
| 125 | ox->text_align_power = ix->text_align_power; |
| 126 | ox->data_align_power = ix->data_align_power; |
| 127 | ox->modtype = ix->modtype; |
| 128 | ox->cputype = ix->cputype; |
| 129 | ox->maxdata = ix->maxdata; |
| 130 | ox->maxstack = ix->maxstack; |
| 131 | return true; |
| 132 | } |
| 133 | |
| 134 | /* I don't think XCOFF really has a notion of local labels based on |
| 135 | name. This will mean that ld -X doesn't actually strip anything. |
| 136 | The AIX native linker does not have a -X option, and it ignores the |
| 137 | -x option. */ |
| 138 | |
| 139 | static boolean |
| 140 | xcoff_is_local_label_name (abfd, name) |
| 141 | bfd *abfd; |
| 142 | const char *name; |
| 143 | { |
| 144 | return false; |
| 145 | } |
| 146 | \f |
| 147 | /* The XCOFF reloc table. Actually, XCOFF relocations specify the |
| 148 | bitsize and whether they are signed or not, along with a |
| 149 | conventional type. This table is for the types, which are used for |
| 150 | different algorithms for putting in the reloc. Many of these |
| 151 | relocs need special_function entries, which I have not written. */ |
| 152 | |
| 153 | static reloc_howto_type xcoff_howto_table[] = |
| 154 | { |
| 155 | /* Standard 32 bit relocation. */ |
| 156 | HOWTO (0, /* type */ |
| 157 | 0, /* rightshift */ |
| 158 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 159 | 32, /* bitsize */ |
| 160 | false, /* pc_relative */ |
| 161 | 0, /* bitpos */ |
| 162 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 163 | 0, /* special_function */ |
| 164 | "R_POS", /* name */ |
| 165 | true, /* partial_inplace */ |
| 166 | 0xffffffff, /* src_mask */ |
| 167 | 0xffffffff, /* dst_mask */ |
| 168 | false), /* pcrel_offset */ |
| 169 | |
| 170 | /* 32 bit relocation, but store negative value. */ |
| 171 | HOWTO (1, /* type */ |
| 172 | 0, /* rightshift */ |
| 173 | -2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 174 | 32, /* bitsize */ |
| 175 | false, /* pc_relative */ |
| 176 | 0, /* bitpos */ |
| 177 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 178 | 0, /* special_function */ |
| 179 | "R_NEG", /* name */ |
| 180 | true, /* partial_inplace */ |
| 181 | 0xffffffff, /* src_mask */ |
| 182 | 0xffffffff, /* dst_mask */ |
| 183 | false), /* pcrel_offset */ |
| 184 | |
| 185 | /* 32 bit PC relative relocation. */ |
| 186 | HOWTO (2, /* type */ |
| 187 | 0, /* rightshift */ |
| 188 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 189 | 32, /* bitsize */ |
| 190 | true, /* pc_relative */ |
| 191 | 0, /* bitpos */ |
| 192 | complain_overflow_signed, /* complain_on_overflow */ |
| 193 | 0, /* special_function */ |
| 194 | "R_REL", /* name */ |
| 195 | true, /* partial_inplace */ |
| 196 | 0xffffffff, /* src_mask */ |
| 197 | 0xffffffff, /* dst_mask */ |
| 198 | false), /* pcrel_offset */ |
| 199 | |
| 200 | /* 16 bit TOC relative relocation. */ |
| 201 | HOWTO (3, /* type */ |
| 202 | 0, /* rightshift */ |
| 203 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 204 | 16, /* bitsize */ |
| 205 | false, /* pc_relative */ |
| 206 | 0, /* bitpos */ |
| 207 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 208 | 0, /* special_function */ |
| 209 | "R_TOC", /* name */ |
| 210 | true, /* partial_inplace */ |
| 211 | 0xffff, /* src_mask */ |
| 212 | 0xffff, /* dst_mask */ |
| 213 | false), /* pcrel_offset */ |
| 214 | |
| 215 | /* I don't really know what this is. */ |
| 216 | HOWTO (4, /* type */ |
| 217 | 1, /* rightshift */ |
| 218 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 219 | 32, /* bitsize */ |
| 220 | false, /* pc_relative */ |
| 221 | 0, /* bitpos */ |
| 222 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 223 | 0, /* special_function */ |
| 224 | "R_RTB", /* name */ |
| 225 | true, /* partial_inplace */ |
| 226 | 0xffffffff, /* src_mask */ |
| 227 | 0xffffffff, /* dst_mask */ |
| 228 | false), /* pcrel_offset */ |
| 229 | |
| 230 | /* External TOC relative symbol. */ |
| 231 | HOWTO (5, /* type */ |
| 232 | 0, /* rightshift */ |
| 233 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 234 | 16, /* bitsize */ |
| 235 | false, /* pc_relative */ |
| 236 | 0, /* bitpos */ |
| 237 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 238 | 0, /* special_function */ |
| 239 | "R_GL", /* name */ |
| 240 | true, /* partial_inplace */ |
| 241 | 0xffff, /* src_mask */ |
| 242 | 0xffff, /* dst_mask */ |
| 243 | false), /* pcrel_offset */ |
| 244 | |
| 245 | /* Local TOC relative symbol. */ |
| 246 | HOWTO (6, /* type */ |
| 247 | 0, /* rightshift */ |
| 248 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 249 | 16, /* bitsize */ |
| 250 | false, /* pc_relative */ |
| 251 | 0, /* bitpos */ |
| 252 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 253 | 0, /* special_function */ |
| 254 | "R_TCL", /* name */ |
| 255 | true, /* partial_inplace */ |
| 256 | 0xffff, /* src_mask */ |
| 257 | 0xffff, /* dst_mask */ |
| 258 | false), /* pcrel_offset */ |
| 259 | |
| 260 | { 7 }, |
| 261 | |
| 262 | /* Non modifiable absolute branch. */ |
| 263 | HOWTO (8, /* type */ |
| 264 | 0, /* rightshift */ |
| 265 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 266 | 26, /* bitsize */ |
| 267 | false, /* pc_relative */ |
| 268 | 0, /* bitpos */ |
| 269 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 270 | 0, /* special_function */ |
| 271 | "R_BA", /* name */ |
| 272 | true, /* partial_inplace */ |
| 273 | 0x3fffffc, /* src_mask */ |
| 274 | 0x3fffffc, /* dst_mask */ |
| 275 | false), /* pcrel_offset */ |
| 276 | |
| 277 | { 9 }, |
| 278 | |
| 279 | /* Non modifiable relative branch. */ |
| 280 | HOWTO (0xa, /* type */ |
| 281 | 0, /* rightshift */ |
| 282 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 283 | 26, /* bitsize */ |
| 284 | true, /* pc_relative */ |
| 285 | 0, /* bitpos */ |
| 286 | complain_overflow_signed, /* complain_on_overflow */ |
| 287 | 0, /* special_function */ |
| 288 | "R_BR", /* name */ |
| 289 | true, /* partial_inplace */ |
| 290 | 0x3fffffc, /* src_mask */ |
| 291 | 0x3fffffc, /* dst_mask */ |
| 292 | false), /* pcrel_offset */ |
| 293 | |
| 294 | { 0xb }, |
| 295 | |
| 296 | /* Indirect load. */ |
| 297 | HOWTO (0xc, /* type */ |
| 298 | 0, /* rightshift */ |
| 299 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 300 | 16, /* bitsize */ |
| 301 | false, /* pc_relative */ |
| 302 | 0, /* bitpos */ |
| 303 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 304 | 0, /* special_function */ |
| 305 | "R_RL", /* name */ |
| 306 | true, /* partial_inplace */ |
| 307 | 0xffff, /* src_mask */ |
| 308 | 0xffff, /* dst_mask */ |
| 309 | false), /* pcrel_offset */ |
| 310 | |
| 311 | /* Load address. */ |
| 312 | HOWTO (0xd, /* type */ |
| 313 | 0, /* rightshift */ |
| 314 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 315 | 16, /* bitsize */ |
| 316 | false, /* pc_relative */ |
| 317 | 0, /* bitpos */ |
| 318 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 319 | 0, /* special_function */ |
| 320 | "R_RLA", /* name */ |
| 321 | true, /* partial_inplace */ |
| 322 | 0xffff, /* src_mask */ |
| 323 | 0xffff, /* dst_mask */ |
| 324 | false), /* pcrel_offset */ |
| 325 | |
| 326 | { 0xe }, |
| 327 | |
| 328 | /* Non-relocating reference. */ |
| 329 | HOWTO (0xf, /* type */ |
| 330 | 0, /* rightshift */ |
| 331 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 332 | 32, /* bitsize */ |
| 333 | false, /* pc_relative */ |
| 334 | 0, /* bitpos */ |
| 335 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 336 | 0, /* special_function */ |
| 337 | "R_REF", /* name */ |
| 338 | false, /* partial_inplace */ |
| 339 | 0, /* src_mask */ |
| 340 | 0, /* dst_mask */ |
| 341 | false), /* pcrel_offset */ |
| 342 | |
| 343 | { 0x10 }, |
| 344 | { 0x11 }, |
| 345 | |
| 346 | /* TOC relative indirect load. */ |
| 347 | HOWTO (0x12, /* type */ |
| 348 | 0, /* rightshift */ |
| 349 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 350 | 16, /* bitsize */ |
| 351 | false, /* pc_relative */ |
| 352 | 0, /* bitpos */ |
| 353 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 354 | 0, /* special_function */ |
| 355 | "R_TRL", /* name */ |
| 356 | true, /* partial_inplace */ |
| 357 | 0xffff, /* src_mask */ |
| 358 | 0xffff, /* dst_mask */ |
| 359 | false), /* pcrel_offset */ |
| 360 | |
| 361 | /* TOC relative load address. */ |
| 362 | HOWTO (0x13, /* type */ |
| 363 | 0, /* rightshift */ |
| 364 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 365 | 16, /* bitsize */ |
| 366 | false, /* pc_relative */ |
| 367 | 0, /* bitpos */ |
| 368 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 369 | 0, /* special_function */ |
| 370 | "R_TRLA", /* name */ |
| 371 | true, /* partial_inplace */ |
| 372 | 0xffff, /* src_mask */ |
| 373 | 0xffff, /* dst_mask */ |
| 374 | false), /* pcrel_offset */ |
| 375 | |
| 376 | /* Modifiable relative branch. */ |
| 377 | HOWTO (0x14, /* type */ |
| 378 | 1, /* rightshift */ |
| 379 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 380 | 32, /* bitsize */ |
| 381 | false, /* pc_relative */ |
| 382 | 0, /* bitpos */ |
| 383 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 384 | 0, /* special_function */ |
| 385 | "R_RRTBI", /* name */ |
| 386 | true, /* partial_inplace */ |
| 387 | 0xffffffff, /* src_mask */ |
| 388 | 0xffffffff, /* dst_mask */ |
| 389 | false), /* pcrel_offset */ |
| 390 | |
| 391 | /* Modifiable absolute branch. */ |
| 392 | HOWTO (0x15, /* type */ |
| 393 | 1, /* rightshift */ |
| 394 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 395 | 32, /* bitsize */ |
| 396 | false, /* pc_relative */ |
| 397 | 0, /* bitpos */ |
| 398 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 399 | 0, /* special_function */ |
| 400 | "R_RRTBA", /* name */ |
| 401 | true, /* partial_inplace */ |
| 402 | 0xffffffff, /* src_mask */ |
| 403 | 0xffffffff, /* dst_mask */ |
| 404 | false), /* pcrel_offset */ |
| 405 | |
| 406 | /* Modifiable call absolute indirect. */ |
| 407 | HOWTO (0x16, /* type */ |
| 408 | 0, /* rightshift */ |
| 409 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 410 | 16, /* bitsize */ |
| 411 | false, /* pc_relative */ |
| 412 | 0, /* bitpos */ |
| 413 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 414 | 0, /* special_function */ |
| 415 | "R_CAI", /* name */ |
| 416 | true, /* partial_inplace */ |
| 417 | 0xffff, /* src_mask */ |
| 418 | 0xffff, /* dst_mask */ |
| 419 | false), /* pcrel_offset */ |
| 420 | |
| 421 | /* Modifiable call relative. */ |
| 422 | HOWTO (0x17, /* type */ |
| 423 | 0, /* rightshift */ |
| 424 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 425 | 16, /* bitsize */ |
| 426 | false, /* pc_relative */ |
| 427 | 0, /* bitpos */ |
| 428 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 429 | 0, /* special_function */ |
| 430 | "R_CREL", /* name */ |
| 431 | true, /* partial_inplace */ |
| 432 | 0xffff, /* src_mask */ |
| 433 | 0xffff, /* dst_mask */ |
| 434 | false), /* pcrel_offset */ |
| 435 | |
| 436 | /* Modifiable branch absolute. */ |
| 437 | HOWTO (0x18, /* type */ |
| 438 | 0, /* rightshift */ |
| 439 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 440 | 16, /* bitsize */ |
| 441 | false, /* pc_relative */ |
| 442 | 0, /* bitpos */ |
| 443 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 444 | 0, /* special_function */ |
| 445 | "R_RBA", /* name */ |
| 446 | true, /* partial_inplace */ |
| 447 | 0xffff, /* src_mask */ |
| 448 | 0xffff, /* dst_mask */ |
| 449 | false), /* pcrel_offset */ |
| 450 | |
| 451 | /* Modifiable branch absolute. */ |
| 452 | HOWTO (0x19, /* type */ |
| 453 | 0, /* rightshift */ |
| 454 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 455 | 16, /* bitsize */ |
| 456 | false, /* pc_relative */ |
| 457 | 0, /* bitpos */ |
| 458 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 459 | 0, /* special_function */ |
| 460 | "R_RBAC", /* name */ |
| 461 | true, /* partial_inplace */ |
| 462 | 0xffff, /* src_mask */ |
| 463 | 0xffff, /* dst_mask */ |
| 464 | false), /* pcrel_offset */ |
| 465 | |
| 466 | /* Modifiable branch relative. */ |
| 467 | HOWTO (0x1a, /* type */ |
| 468 | 0, /* rightshift */ |
| 469 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 470 | 26, /* bitsize */ |
| 471 | false, /* pc_relative */ |
| 472 | 0, /* bitpos */ |
| 473 | complain_overflow_signed, /* complain_on_overflow */ |
| 474 | 0, /* special_function */ |
| 475 | "R_RBR", /* name */ |
| 476 | true, /* partial_inplace */ |
| 477 | 0xffff, /* src_mask */ |
| 478 | 0xffff, /* dst_mask */ |
| 479 | false), /* pcrel_offset */ |
| 480 | |
| 481 | /* Modifiable branch absolute. */ |
| 482 | HOWTO (0x1b, /* type */ |
| 483 | 0, /* rightshift */ |
| 484 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 485 | 16, /* bitsize */ |
| 486 | false, /* pc_relative */ |
| 487 | 0, /* bitpos */ |
| 488 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 489 | 0, /* special_function */ |
| 490 | "R_RBRC", /* name */ |
| 491 | true, /* partial_inplace */ |
| 492 | 0xffff, /* src_mask */ |
| 493 | 0xffff, /* dst_mask */ |
| 494 | false) /* pcrel_offset */ |
| 495 | }; |
| 496 | |
| 497 | static void |
| 498 | xcoff_rtype2howto (relent, internal) |
| 499 | arelent *relent; |
| 500 | struct internal_reloc *internal; |
| 501 | { |
| 502 | relent->howto = xcoff_howto_table + internal->r_type; |
| 503 | |
| 504 | /* The r_size field of an XCOFF reloc encodes the bitsize of the |
| 505 | relocation, as well as indicating whether it is signed or not. |
| 506 | Doublecheck that the relocation information gathered from the |
| 507 | type matches this information. */ |
| 508 | if (relent->howto->bitsize != ((unsigned int) internal->r_size & 0x1f) + 1) |
| 509 | abort (); |
| 510 | #if 0 |
| 511 | if ((internal->r_size & 0x80) != 0 |
| 512 | ? (relent->howto->complain_on_overflow != complain_overflow_signed) |
| 513 | : (relent->howto->complain_on_overflow != complain_overflow_bitfield)) |
| 514 | abort (); |
| 515 | #endif |
| 516 | } |
| 517 | |
| 518 | static reloc_howto_type * |
| 519 | xcoff_reloc_type_lookup (abfd, code) |
| 520 | bfd *abfd; |
| 521 | bfd_reloc_code_real_type code; |
| 522 | { |
| 523 | switch (code) |
| 524 | { |
| 525 | case BFD_RELOC_PPC_B26: |
| 526 | return &xcoff_howto_table[0xa]; |
| 527 | case BFD_RELOC_PPC_BA26: |
| 528 | return &xcoff_howto_table[8]; |
| 529 | case BFD_RELOC_PPC_TOC16: |
| 530 | return &xcoff_howto_table[3]; |
| 531 | case BFD_RELOC_32: |
| 532 | case BFD_RELOC_CTOR: |
| 533 | return &xcoff_howto_table[0]; |
| 534 | default: |
| 535 | return NULL; |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | #define SELECT_RELOC(internal, howto) \ |
| 540 | { \ |
| 541 | internal.r_type = howto->type; \ |
| 542 | internal.r_size = \ |
| 543 | ((howto->complain_on_overflow == complain_overflow_signed \ |
| 544 | ? 0x80 \ |
| 545 | : 0) \ |
| 546 | | (howto->bitsize - 1)); \ |
| 547 | } |
| 548 | \f |
| 549 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) |
| 550 | |
| 551 | #define COFF_LONG_FILENAMES |
| 552 | |
| 553 | #define RTYPE2HOWTO(cache_ptr, dst) xcoff_rtype2howto (cache_ptr, dst) |
| 554 | |
| 555 | #define coff_mkobject xcoff_mkobject |
| 556 | #define coff_bfd_copy_private_bfd_data xcoff_copy_private_bfd_data |
| 557 | #define coff_bfd_is_local_label_name xcoff_is_local_label_name |
| 558 | #define coff_bfd_reloc_type_lookup xcoff_reloc_type_lookup |
| 559 | #define coff_relocate_section _bfd_ppc_xcoff_relocate_section |
| 560 | |
| 561 | #include "coffcode.h" |
| 562 | \f |
| 563 | /* XCOFF archive support. The original version of this code was by |
| 564 | Damon A. Permezel. It was enhanced to permit cross support, and |
| 565 | writing archive files, by Ian Lance Taylor, Cygnus Support. |
| 566 | |
| 567 | XCOFF uses its own archive format. Everything is hooked together |
| 568 | with file offset links, so it is possible to rapidly update an |
| 569 | archive in place. Of course, we don't do that. An XCOFF archive |
| 570 | has a real file header, not just an ARMAG string. The structure of |
| 571 | the file header and of each archive header appear below. |
| 572 | |
| 573 | An XCOFF archive also has a member table, which is a list of |
| 574 | elements in the archive (you can get that by looking through the |
| 575 | linked list, but you have to read a lot more of the file). The |
| 576 | member table has a normal archive header with an empty name. It is |
| 577 | normally (and perhaps must be) the second to last entry in the |
| 578 | archive. The member table data is almost printable ASCII. It |
| 579 | starts with a 12 character decimal string which is the number of |
| 580 | entries in the table. For each entry it has a 12 character decimal |
| 581 | string which is the offset in the archive of that member. These |
| 582 | entries are followed by a series of null terminated strings which |
| 583 | are the member names for each entry. |
| 584 | |
| 585 | Finally, an XCOFF archive has a global symbol table, which is what |
| 586 | we call the armap. The global symbol table has a normal archive |
| 587 | header with an empty name. It is normally (and perhaps must be) |
| 588 | the last entry in the archive. The contents start with a four byte |
| 589 | binary number which is the number of entries. This is followed by |
| 590 | a that many four byte binary numbers; each is the file offset of an |
| 591 | entry in the archive. These numbers are followed by a series of |
| 592 | null terminated strings, which are symbol names. */ |
| 593 | |
| 594 | /* XCOFF archives use this as a magic string. */ |
| 595 | |
| 596 | #define XCOFFARMAG "<aiaff>\012" |
| 597 | #define SXCOFFARMAG 8 |
| 598 | |
| 599 | /* This terminates an XCOFF archive member name. */ |
| 600 | |
| 601 | #define XCOFFARFMAG "`\012" |
| 602 | #define SXCOFFARFMAG 2 |
| 603 | |
| 604 | /* XCOFF archives start with this (printable) structure. */ |
| 605 | |
| 606 | struct xcoff_ar_file_hdr |
| 607 | { |
| 608 | /* Magic string. */ |
| 609 | char magic[SXCOFFARMAG]; |
| 610 | |
| 611 | /* Offset of the member table (decimal ASCII string). */ |
| 612 | char memoff[12]; |
| 613 | |
| 614 | /* Offset of the global symbol table (decimal ASCII string). */ |
| 615 | char symoff[12]; |
| 616 | |
| 617 | /* Offset of the first member in the archive (decimal ASCII string). */ |
| 618 | char firstmemoff[12]; |
| 619 | |
| 620 | /* Offset of the last member in the archive (decimal ASCII string). */ |
| 621 | char lastmemoff[12]; |
| 622 | |
| 623 | /* Offset of the first member on the free list (decimal ASCII |
| 624 | string). */ |
| 625 | char freeoff[12]; |
| 626 | }; |
| 627 | |
| 628 | #define SIZEOF_AR_FILE_HDR (5 * 12 + SXCOFFARMAG) |
| 629 | |
| 630 | /* Each XCOFF archive member starts with this (printable) structure. */ |
| 631 | |
| 632 | struct xcoff_ar_hdr |
| 633 | { |
| 634 | /* File size not including the header (decimal ASCII string). */ |
| 635 | char size[12]; |
| 636 | |
| 637 | /* File offset of next archive member (decimal ASCII string). */ |
| 638 | char nextoff[12]; |
| 639 | |
| 640 | /* File offset of previous archive member (decimal ASCII string). */ |
| 641 | char prevoff[12]; |
| 642 | |
| 643 | /* File mtime (decimal ASCII string). */ |
| 644 | char date[12]; |
| 645 | |
| 646 | /* File UID (decimal ASCII string). */ |
| 647 | char uid[12]; |
| 648 | |
| 649 | /* File GID (decimal ASCII string). */ |
| 650 | char gid[12]; |
| 651 | |
| 652 | /* File mode (octal ASCII string). */ |
| 653 | char mode[12]; |
| 654 | |
| 655 | /* Length of file name (decimal ASCII string). */ |
| 656 | char namlen[4]; |
| 657 | |
| 658 | /* This structure is followed by the file name. The length of the |
| 659 | name is given in the namlen field. If the length of the name is |
| 660 | odd, the name is followed by a null byte. The name and optional |
| 661 | null byte are followed by XCOFFARFMAG, which is not included in |
| 662 | namlen. The contents of the archive member follow; the number of |
| 663 | bytes is given in the size field. */ |
| 664 | }; |
| 665 | |
| 666 | #define SIZEOF_AR_HDR (7 * 12 + 4) |
| 667 | |
| 668 | /* We store a copy of the xcoff_ar_file_hdr in the tdata field of the |
| 669 | artdata structure. */ |
| 670 | #define xcoff_ardata(abfd) \ |
| 671 | ((struct xcoff_ar_file_hdr *) bfd_ardata (abfd)->tdata) |
| 672 | |
| 673 | /* We store a copy of the xcoff_ar_hdr in the arelt_data field of an |
| 674 | archive element. */ |
| 675 | #define arch_eltdata(bfd) ((struct areltdata *) ((bfd)->arelt_data)) |
| 676 | #define arch_xhdr(bfd) \ |
| 677 | ((struct xcoff_ar_hdr *) arch_eltdata (bfd)->arch_header) |
| 678 | |
| 679 | /* XCOFF archives do not have anything which corresponds to an |
| 680 | extended name table. */ |
| 681 | |
| 682 | #define xcoff_slurp_extended_name_table bfd_false |
| 683 | #define xcoff_construct_extended_name_table \ |
| 684 | ((boolean (*) PARAMS ((bfd *, char **, bfd_size_type *, const char **))) \ |
| 685 | bfd_false) |
| 686 | #define xcoff_truncate_arname bfd_dont_truncate_arname |
| 687 | |
| 688 | /* We can use the standard get_elt_at_index routine. */ |
| 689 | |
| 690 | #define xcoff_get_elt_at_index _bfd_generic_get_elt_at_index |
| 691 | |
| 692 | /* XCOFF archives do not have a timestamp. */ |
| 693 | |
| 694 | #define xcoff_update_armap_timestamp bfd_true |
| 695 | |
| 696 | /* Read in the armap of an XCOFF archive. */ |
| 697 | |
| 698 | static boolean |
| 699 | xcoff_slurp_armap (abfd) |
| 700 | bfd *abfd; |
| 701 | { |
| 702 | file_ptr off; |
| 703 | struct xcoff_ar_hdr hdr; |
| 704 | size_t namlen; |
| 705 | bfd_size_type sz; |
| 706 | bfd_byte *contents, *cend; |
| 707 | unsigned int c, i; |
| 708 | carsym *arsym; |
| 709 | bfd_byte *p; |
| 710 | |
| 711 | if (xcoff_ardata (abfd) == NULL) |
| 712 | { |
| 713 | bfd_has_map (abfd) = false; |
| 714 | return true; |
| 715 | } |
| 716 | |
| 717 | off = strtol (xcoff_ardata (abfd)->symoff, (char **) NULL, 10); |
| 718 | if (off == 0) |
| 719 | { |
| 720 | bfd_has_map (abfd) = false; |
| 721 | return true; |
| 722 | } |
| 723 | |
| 724 | if (bfd_seek (abfd, off, SEEK_SET) != 0) |
| 725 | return false; |
| 726 | |
| 727 | /* The symbol table starts with a normal archive header. */ |
| 728 | if (bfd_read ((PTR) &hdr, SIZEOF_AR_HDR, 1, abfd) != SIZEOF_AR_HDR) |
| 729 | return false; |
| 730 | |
| 731 | /* Skip the name (normally empty). */ |
| 732 | namlen = strtol (hdr.namlen, (char **) NULL, 10); |
| 733 | if (bfd_seek (abfd, ((namlen + 1) & ~1) + SXCOFFARFMAG, SEEK_CUR) != 0) |
| 734 | return false; |
| 735 | |
| 736 | /* Read in the entire symbol table. */ |
| 737 | sz = strtol (hdr.size, (char **) NULL, 10); |
| 738 | contents = (bfd_byte *) bfd_alloc (abfd, sz); |
| 739 | if (contents == NULL) |
| 740 | return false; |
| 741 | if (bfd_read ((PTR) contents, 1, sz, abfd) != sz) |
| 742 | return false; |
| 743 | |
| 744 | /* The symbol table starts with a four byte count. */ |
| 745 | c = bfd_h_get_32 (abfd, contents); |
| 746 | |
| 747 | if (c * 4 >= sz) |
| 748 | { |
| 749 | bfd_set_error (bfd_error_bad_value); |
| 750 | return false; |
| 751 | } |
| 752 | |
| 753 | bfd_ardata (abfd)->symdefs = ((carsym *) |
| 754 | bfd_alloc (abfd, c * sizeof (carsym))); |
| 755 | if (bfd_ardata (abfd)->symdefs == NULL) |
| 756 | return false; |
| 757 | |
| 758 | /* After the count comes a list of four byte file offsets. */ |
| 759 | for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 4; |
| 760 | i < c; |
| 761 | ++i, ++arsym, p += 4) |
| 762 | arsym->file_offset = bfd_h_get_32 (abfd, p); |
| 763 | |
| 764 | /* After the file offsets come null terminated symbol names. */ |
| 765 | cend = contents + sz; |
| 766 | for (i = 0, arsym = bfd_ardata (abfd)->symdefs; |
| 767 | i < c; |
| 768 | ++i, ++arsym, p += strlen ((char *) p) + 1) |
| 769 | { |
| 770 | if (p >= cend) |
| 771 | { |
| 772 | bfd_set_error (bfd_error_bad_value); |
| 773 | return false; |
| 774 | } |
| 775 | arsym->name = (char *) p; |
| 776 | } |
| 777 | |
| 778 | bfd_ardata (abfd)->symdef_count = c; |
| 779 | bfd_has_map (abfd) = true; |
| 780 | |
| 781 | return true; |
| 782 | } |
| 783 | |
| 784 | /* See if this is an XCOFF archive. */ |
| 785 | |
| 786 | static const bfd_target * |
| 787 | xcoff_archive_p (abfd) |
| 788 | bfd *abfd; |
| 789 | { |
| 790 | struct xcoff_ar_file_hdr hdr; |
| 791 | |
| 792 | if (bfd_read ((PTR) &hdr, SIZEOF_AR_FILE_HDR, 1, abfd) |
| 793 | != SIZEOF_AR_FILE_HDR) |
| 794 | { |
| 795 | if (bfd_get_error () != bfd_error_system_call) |
| 796 | bfd_set_error (bfd_error_wrong_format); |
| 797 | return NULL; |
| 798 | } |
| 799 | |
| 800 | if (strncmp (hdr.magic, XCOFFARMAG, SXCOFFARMAG) != 0) |
| 801 | { |
| 802 | bfd_set_error (bfd_error_wrong_format); |
| 803 | return NULL; |
| 804 | } |
| 805 | |
| 806 | /* We are setting bfd_ardata(abfd) here, but since bfd_ardata |
| 807 | involves a cast, we can't do it as the left operand of |
| 808 | assignment. */ |
| 809 | abfd->tdata.aout_ar_data = |
| 810 | (struct artdata *) bfd_zalloc (abfd, sizeof (struct artdata)); |
| 811 | |
| 812 | if (bfd_ardata (abfd) == (struct artdata *) NULL) |
| 813 | return NULL; |
| 814 | |
| 815 | bfd_ardata (abfd)->first_file_filepos = strtol (hdr.firstmemoff, |
| 816 | (char **) NULL, 10); |
| 817 | bfd_ardata (abfd)->cache = NULL; |
| 818 | bfd_ardata (abfd)->archive_head = NULL; |
| 819 | bfd_ardata (abfd)->symdefs = NULL; |
| 820 | bfd_ardata (abfd)->extended_names = NULL; |
| 821 | |
| 822 | bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, SIZEOF_AR_FILE_HDR); |
| 823 | if (bfd_ardata (abfd)->tdata == NULL) |
| 824 | return NULL; |
| 825 | |
| 826 | memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR); |
| 827 | |
| 828 | if (! xcoff_slurp_armap (abfd)) |
| 829 | { |
| 830 | bfd_release (abfd, bfd_ardata (abfd)); |
| 831 | abfd->tdata.aout_ar_data = (struct artdata *) NULL; |
| 832 | return NULL; |
| 833 | } |
| 834 | |
| 835 | return abfd->xvec; |
| 836 | } |
| 837 | |
| 838 | /* Read the archive header in an XCOFF archive. */ |
| 839 | |
| 840 | static PTR |
| 841 | xcoff_read_ar_hdr (abfd) |
| 842 | bfd *abfd; |
| 843 | { |
| 844 | struct xcoff_ar_hdr hdr; |
| 845 | size_t namlen; |
| 846 | struct xcoff_ar_hdr *hdrp; |
| 847 | struct areltdata *ret; |
| 848 | |
| 849 | if (bfd_read ((PTR) &hdr, SIZEOF_AR_HDR, 1, abfd) != SIZEOF_AR_HDR) |
| 850 | return NULL; |
| 851 | |
| 852 | namlen = strtol (hdr.namlen, (char **) NULL, 10); |
| 853 | hdrp = bfd_alloc (abfd, SIZEOF_AR_HDR + namlen + 1); |
| 854 | if (hdrp == NULL) |
| 855 | return NULL; |
| 856 | memcpy (hdrp, &hdr, SIZEOF_AR_HDR); |
| 857 | if (bfd_read ((char *) hdrp + SIZEOF_AR_HDR, 1, namlen, abfd) != namlen) |
| 858 | return NULL; |
| 859 | ((char *) hdrp)[SIZEOF_AR_HDR + namlen] = '\0'; |
| 860 | |
| 861 | ret = (struct areltdata *) bfd_alloc (abfd, sizeof (struct areltdata)); |
| 862 | if (ret == NULL) |
| 863 | return NULL; |
| 864 | ret->arch_header = (char *) hdrp; |
| 865 | ret->parsed_size = strtol (hdr.size, (char **) NULL, 10); |
| 866 | ret->filename = (char *) hdrp + SIZEOF_AR_HDR; |
| 867 | |
| 868 | /* Skip over the XCOFFARFMAG at the end of the file name. */ |
| 869 | if (bfd_seek (abfd, (namlen & 1) + SXCOFFARFMAG, SEEK_CUR) != 0) |
| 870 | return NULL; |
| 871 | |
| 872 | return (PTR) ret; |
| 873 | } |
| 874 | |
| 875 | /* Open the next element in an XCOFF archive. */ |
| 876 | |
| 877 | static bfd * |
| 878 | xcoff_openr_next_archived_file (archive, last_file) |
| 879 | bfd *archive; |
| 880 | bfd *last_file; |
| 881 | { |
| 882 | file_ptr filestart; |
| 883 | |
| 884 | if (xcoff_ardata (archive) == NULL) |
| 885 | { |
| 886 | bfd_set_error (bfd_error_invalid_operation); |
| 887 | return NULL; |
| 888 | } |
| 889 | |
| 890 | if (last_file == NULL) |
| 891 | filestart = bfd_ardata (archive)->first_file_filepos; |
| 892 | else |
| 893 | filestart = strtol (arch_xhdr (last_file)->nextoff, (char **) NULL, 10); |
| 894 | |
| 895 | if (filestart == 0 |
| 896 | || filestart == strtol (xcoff_ardata (archive)->memoff, |
| 897 | (char **) NULL, 10) |
| 898 | || filestart == strtol (xcoff_ardata (archive)->symoff, |
| 899 | (char **) NULL, 10)) |
| 900 | { |
| 901 | bfd_set_error (bfd_error_no_more_archived_files); |
| 902 | return NULL; |
| 903 | } |
| 904 | |
| 905 | return _bfd_get_elt_at_filepos (archive, filestart); |
| 906 | } |
| 907 | |
| 908 | /* Stat an element in an XCOFF archive. */ |
| 909 | |
| 910 | static int |
| 911 | xcoff_generic_stat_arch_elt (abfd, s) |
| 912 | bfd *abfd; |
| 913 | struct stat *s; |
| 914 | { |
| 915 | struct xcoff_ar_hdr *hdrp; |
| 916 | |
| 917 | if (abfd->arelt_data == NULL) |
| 918 | { |
| 919 | bfd_set_error (bfd_error_invalid_operation); |
| 920 | return -1; |
| 921 | } |
| 922 | |
| 923 | hdrp = arch_xhdr (abfd); |
| 924 | |
| 925 | s->st_mtime = strtol (hdrp->date, (char **) NULL, 10); |
| 926 | s->st_uid = strtol (hdrp->uid, (char **) NULL, 10); |
| 927 | s->st_gid = strtol (hdrp->gid, (char **) NULL, 10); |
| 928 | s->st_mode = strtol (hdrp->mode, (char **) NULL, 8); |
| 929 | s->st_size = arch_eltdata (abfd)->parsed_size; |
| 930 | |
| 931 | return 0; |
| 932 | } |
| 933 | |
| 934 | /* Normalize a file name for inclusion in an archive. */ |
| 935 | |
| 936 | static const char * |
| 937 | normalize_filename (abfd) |
| 938 | bfd *abfd; |
| 939 | { |
| 940 | const char *file; |
| 941 | const char *filename; |
| 942 | |
| 943 | file = bfd_get_filename (abfd); |
| 944 | filename = strrchr (file, '/'); |
| 945 | if (filename != NULL) |
| 946 | filename++; |
| 947 | else |
| 948 | filename = file; |
| 949 | return filename; |
| 950 | } |
| 951 | |
| 952 | /* Write out an XCOFF armap. */ |
| 953 | |
| 954 | /*ARGSUSED*/ |
| 955 | static boolean |
| 956 | xcoff_write_armap (abfd, elength, map, orl_count, stridx) |
| 957 | bfd *abfd; |
| 958 | unsigned int elength; |
| 959 | struct orl *map; |
| 960 | unsigned int orl_count; |
| 961 | int stridx; |
| 962 | { |
| 963 | struct xcoff_ar_hdr hdr; |
| 964 | char *p; |
| 965 | unsigned char buf[4]; |
| 966 | bfd *sub; |
| 967 | file_ptr fileoff; |
| 968 | unsigned int i; |
| 969 | |
| 970 | memset (&hdr, 0, sizeof hdr); |
| 971 | sprintf (hdr.size, "%ld", (long) (4 + orl_count * 4 + stridx)); |
| 972 | sprintf (hdr.nextoff, "%d", 0); |
| 973 | memcpy (hdr.prevoff, xcoff_ardata (abfd)->memoff, 12); |
| 974 | sprintf (hdr.date, "%d", 0); |
| 975 | sprintf (hdr.uid, "%d", 0); |
| 976 | sprintf (hdr.gid, "%d", 0); |
| 977 | sprintf (hdr.mode, "%d", 0); |
| 978 | sprintf (hdr.namlen, "%d", 0); |
| 979 | |
| 980 | /* We need spaces, not null bytes, in the header. */ |
| 981 | for (p = (char *) &hdr; p < (char *) &hdr + SIZEOF_AR_HDR; p++) |
| 982 | if (*p == '\0') |
| 983 | *p = ' '; |
| 984 | |
| 985 | if (bfd_write ((PTR) &hdr, SIZEOF_AR_HDR, 1, abfd) != SIZEOF_AR_HDR |
| 986 | || bfd_write (XCOFFARFMAG, 1, SXCOFFARFMAG, abfd) != SXCOFFARFMAG) |
| 987 | return false; |
| 988 | |
| 989 | bfd_h_put_32 (abfd, orl_count, buf); |
| 990 | if (bfd_write (buf, 1, 4, abfd) != 4) |
| 991 | return false; |
| 992 | |
| 993 | sub = abfd->archive_head; |
| 994 | fileoff = SIZEOF_AR_FILE_HDR; |
| 995 | i = 0; |
| 996 | while (sub != NULL && i < orl_count) |
| 997 | { |
| 998 | size_t namlen; |
| 999 | |
| 1000 | while (((bfd *) (map[i]).pos) == sub) |
| 1001 | { |
| 1002 | bfd_h_put_32 (abfd, fileoff, buf); |
| 1003 | if (bfd_write (buf, 1, 4, abfd) != 4) |
| 1004 | return false; |
| 1005 | ++i; |
| 1006 | } |
| 1007 | namlen = strlen (normalize_filename (sub)); |
| 1008 | namlen = (namlen + 1) &~ 1; |
| 1009 | fileoff += (SIZEOF_AR_HDR |
| 1010 | + namlen |
| 1011 | + SXCOFFARFMAG |
| 1012 | + arelt_size (sub)); |
| 1013 | fileoff = (fileoff + 1) &~ 1; |
| 1014 | sub = sub->next; |
| 1015 | } |
| 1016 | |
| 1017 | for (i = 0; i < orl_count; i++) |
| 1018 | { |
| 1019 | const char *name; |
| 1020 | size_t namlen; |
| 1021 | |
| 1022 | name = *map[i].name; |
| 1023 | namlen = strlen (name); |
| 1024 | if (bfd_write (name, 1, namlen + 1, abfd) != namlen + 1) |
| 1025 | return false; |
| 1026 | } |
| 1027 | |
| 1028 | if ((stridx & 1) != 0) |
| 1029 | { |
| 1030 | char b; |
| 1031 | |
| 1032 | b = '\0'; |
| 1033 | if (bfd_write (&b, 1, 1, abfd) != 1) |
| 1034 | return false; |
| 1035 | } |
| 1036 | |
| 1037 | return true; |
| 1038 | } |
| 1039 | |
| 1040 | /* Write out an XCOFF archive. We always write an entire archive, |
| 1041 | rather than fussing with the freelist and so forth. */ |
| 1042 | |
| 1043 | static boolean |
| 1044 | xcoff_write_archive_contents (abfd) |
| 1045 | bfd *abfd; |
| 1046 | { |
| 1047 | struct xcoff_ar_file_hdr fhdr; |
| 1048 | size_t count; |
| 1049 | size_t total_namlen; |
| 1050 | file_ptr *offsets; |
| 1051 | boolean makemap; |
| 1052 | boolean hasobjects; |
| 1053 | file_ptr prevoff, nextoff; |
| 1054 | bfd *sub; |
| 1055 | unsigned int i; |
| 1056 | struct xcoff_ar_hdr ahdr; |
| 1057 | bfd_size_type size; |
| 1058 | char *p; |
| 1059 | char decbuf[13]; |
| 1060 | |
| 1061 | memset (&fhdr, 0, sizeof fhdr); |
| 1062 | strncpy (fhdr.magic, XCOFFARMAG, SXCOFFARMAG); |
| 1063 | sprintf (fhdr.firstmemoff, "%d", SIZEOF_AR_FILE_HDR); |
| 1064 | sprintf (fhdr.freeoff, "%d", 0); |
| 1065 | |
| 1066 | count = 0; |
| 1067 | total_namlen = 0; |
| 1068 | for (sub = abfd->archive_head; sub != NULL; sub = sub->next) |
| 1069 | { |
| 1070 | ++count; |
| 1071 | total_namlen += strlen (normalize_filename (sub)) + 1; |
| 1072 | } |
| 1073 | offsets = (file_ptr *) bfd_alloc (abfd, count * sizeof (file_ptr)); |
| 1074 | if (offsets == NULL) |
| 1075 | return false; |
| 1076 | |
| 1077 | if (bfd_seek (abfd, SIZEOF_AR_FILE_HDR, SEEK_SET) != 0) |
| 1078 | return false; |
| 1079 | |
| 1080 | makemap = bfd_has_map (abfd); |
| 1081 | hasobjects = false; |
| 1082 | prevoff = 0; |
| 1083 | nextoff = SIZEOF_AR_FILE_HDR; |
| 1084 | for (sub = abfd->archive_head, i = 0; sub != NULL; sub = sub->next, i++) |
| 1085 | { |
| 1086 | const char *name; |
| 1087 | size_t namlen; |
| 1088 | struct xcoff_ar_hdr *ahdrp; |
| 1089 | bfd_size_type remaining; |
| 1090 | |
| 1091 | if (makemap && ! hasobjects) |
| 1092 | { |
| 1093 | if (bfd_check_format (sub, bfd_object)) |
| 1094 | hasobjects = true; |
| 1095 | } |
| 1096 | |
| 1097 | name = normalize_filename (sub); |
| 1098 | namlen = strlen (name); |
| 1099 | |
| 1100 | if (sub->arelt_data != NULL) |
| 1101 | ahdrp = arch_xhdr (sub); |
| 1102 | else |
| 1103 | ahdrp = NULL; |
| 1104 | |
| 1105 | if (ahdrp == NULL) |
| 1106 | { |
| 1107 | struct stat s; |
| 1108 | |
| 1109 | memset (&ahdr, 0, sizeof ahdr); |
| 1110 | ahdrp = &ahdr; |
| 1111 | if (stat (bfd_get_filename (sub), &s) != 0) |
| 1112 | { |
| 1113 | bfd_set_error (bfd_error_system_call); |
| 1114 | return false; |
| 1115 | } |
| 1116 | |
| 1117 | sprintf (ahdrp->size, "%ld", (long) s.st_size); |
| 1118 | sprintf (ahdrp->date, "%ld", (long) s.st_mtime); |
| 1119 | sprintf (ahdrp->uid, "%ld", (long) s.st_uid); |
| 1120 | sprintf (ahdrp->gid, "%ld", (long) s.st_gid); |
| 1121 | sprintf (ahdrp->mode, "%o", (unsigned int) s.st_mode); |
| 1122 | |
| 1123 | if (sub->arelt_data == NULL) |
| 1124 | { |
| 1125 | sub->arelt_data = ((struct areltdata *) |
| 1126 | bfd_alloc (sub, sizeof (struct areltdata))); |
| 1127 | if (sub->arelt_data == NULL) |
| 1128 | return false; |
| 1129 | } |
| 1130 | |
| 1131 | arch_eltdata (sub)->parsed_size = s.st_size; |
| 1132 | } |
| 1133 | |
| 1134 | sprintf (ahdrp->prevoff, "%ld", (long) prevoff); |
| 1135 | sprintf (ahdrp->namlen, "%ld", (long) namlen); |
| 1136 | |
| 1137 | /* If the length of the name is odd, we write out the null byte |
| 1138 | after the name as well. */ |
| 1139 | namlen = (namlen + 1) &~ 1; |
| 1140 | |
| 1141 | remaining = arelt_size (sub); |
| 1142 | size = (SIZEOF_AR_HDR |
| 1143 | + namlen |
| 1144 | + SXCOFFARFMAG |
| 1145 | + remaining); |
| 1146 | |
| 1147 | BFD_ASSERT (nextoff == bfd_tell (abfd)); |
| 1148 | |
| 1149 | offsets[i] = nextoff; |
| 1150 | |
| 1151 | prevoff = nextoff; |
| 1152 | nextoff += size + (size & 1); |
| 1153 | |
| 1154 | sprintf (ahdrp->nextoff, "%ld", (long) nextoff); |
| 1155 | |
| 1156 | /* We need spaces, not null bytes, in the header. */ |
| 1157 | for (p = (char *) ahdrp; p < (char *) ahdrp + SIZEOF_AR_HDR; p++) |
| 1158 | if (*p == '\0') |
| 1159 | *p = ' '; |
| 1160 | |
| 1161 | if (bfd_write ((PTR) ahdrp, 1, SIZEOF_AR_HDR, abfd) != SIZEOF_AR_HDR |
| 1162 | || bfd_write ((PTR) name, 1, namlen, abfd) != namlen |
| 1163 | || (bfd_write ((PTR) XCOFFARFMAG, 1, SXCOFFARFMAG, abfd) |
| 1164 | != SXCOFFARFMAG)) |
| 1165 | return false; |
| 1166 | |
| 1167 | if (bfd_seek (sub, (file_ptr) 0, SEEK_SET) != 0) |
| 1168 | return false; |
| 1169 | while (remaining != 0) |
| 1170 | { |
| 1171 | bfd_size_type amt; |
| 1172 | bfd_byte buffer[DEFAULT_BUFFERSIZE]; |
| 1173 | |
| 1174 | amt = sizeof buffer; |
| 1175 | if (amt > remaining) |
| 1176 | amt = remaining; |
| 1177 | if (bfd_read (buffer, 1, amt, sub) != amt |
| 1178 | || bfd_write (buffer, 1, amt, abfd) != amt) |
| 1179 | return false; |
| 1180 | remaining -= amt; |
| 1181 | } |
| 1182 | |
| 1183 | if ((size & 1) != 0) |
| 1184 | { |
| 1185 | bfd_byte b; |
| 1186 | |
| 1187 | b = '\0'; |
| 1188 | if (bfd_write (&b, 1, 1, abfd) != 1) |
| 1189 | return false; |
| 1190 | } |
| 1191 | } |
| 1192 | |
| 1193 | sprintf (fhdr.lastmemoff, "%ld", (long) prevoff); |
| 1194 | |
| 1195 | /* Write out the member table. */ |
| 1196 | |
| 1197 | BFD_ASSERT (nextoff == bfd_tell (abfd)); |
| 1198 | sprintf (fhdr.memoff, "%ld", (long) nextoff); |
| 1199 | |
| 1200 | memset (&ahdr, 0, sizeof ahdr); |
| 1201 | sprintf (ahdr.size, "%ld", (long) (12 + count * 12 + total_namlen)); |
| 1202 | sprintf (ahdr.prevoff, "%ld", (long) prevoff); |
| 1203 | sprintf (ahdr.date, "%d", 0); |
| 1204 | sprintf (ahdr.uid, "%d", 0); |
| 1205 | sprintf (ahdr.gid, "%d", 0); |
| 1206 | sprintf (ahdr.mode, "%d", 0); |
| 1207 | sprintf (ahdr.namlen, "%d", 0); |
| 1208 | |
| 1209 | size = (SIZEOF_AR_HDR |
| 1210 | + 12 |
| 1211 | + count * 12 |
| 1212 | + total_namlen |
| 1213 | + SXCOFFARFMAG); |
| 1214 | |
| 1215 | prevoff = nextoff; |
| 1216 | nextoff += size + (size & 1); |
| 1217 | |
| 1218 | if (makemap && hasobjects) |
| 1219 | sprintf (ahdr.nextoff, "%ld", (long) nextoff); |
| 1220 | else |
| 1221 | sprintf (ahdr.nextoff, "%d", 0); |
| 1222 | |
| 1223 | /* We need spaces, not null bytes, in the header. */ |
| 1224 | for (p = (char *) &ahdr; p < (char *) &ahdr + SIZEOF_AR_HDR; p++) |
| 1225 | if (*p == '\0') |
| 1226 | *p = ' '; |
| 1227 | |
| 1228 | if (bfd_write ((PTR) &ahdr, 1, SIZEOF_AR_HDR, abfd) != SIZEOF_AR_HDR |
| 1229 | || (bfd_write ((PTR) XCOFFARFMAG, 1, SXCOFFARFMAG, abfd) |
| 1230 | != SXCOFFARFMAG)) |
| 1231 | return false; |
| 1232 | |
| 1233 | sprintf (decbuf, "%-12ld", (long) count); |
| 1234 | if (bfd_write ((PTR) decbuf, 1, 12, abfd) != 12) |
| 1235 | return false; |
| 1236 | for (i = 0; i < count; i++) |
| 1237 | { |
| 1238 | sprintf (decbuf, "%-12ld", (long) offsets[i]); |
| 1239 | if (bfd_write ((PTR) decbuf, 1, 12, abfd) != 12) |
| 1240 | return false; |
| 1241 | } |
| 1242 | for (sub = abfd->archive_head; sub != NULL; sub = sub->next) |
| 1243 | { |
| 1244 | const char *name; |
| 1245 | size_t namlen; |
| 1246 | |
| 1247 | name = normalize_filename (sub); |
| 1248 | namlen = strlen (name); |
| 1249 | if (bfd_write ((PTR) name, 1, namlen + 1, abfd) != namlen + 1) |
| 1250 | return false; |
| 1251 | } |
| 1252 | if ((size & 1) != 0) |
| 1253 | { |
| 1254 | bfd_byte b; |
| 1255 | |
| 1256 | b = '\0'; |
| 1257 | if (bfd_write ((PTR) &b, 1, 1, abfd) != 1) |
| 1258 | return false; |
| 1259 | } |
| 1260 | |
| 1261 | /* Write out the armap, if appropriate. */ |
| 1262 | |
| 1263 | if (! makemap || ! hasobjects) |
| 1264 | sprintf (fhdr.symoff, "%d", 0); |
| 1265 | else |
| 1266 | { |
| 1267 | BFD_ASSERT (nextoff == bfd_tell (abfd)); |
| 1268 | sprintf (fhdr.symoff, "%ld", (long) nextoff); |
| 1269 | bfd_ardata (abfd)->tdata = (PTR) &fhdr; |
| 1270 | if (! _bfd_compute_and_write_armap (abfd, 0)) |
| 1271 | return false; |
| 1272 | } |
| 1273 | |
| 1274 | /* Write out the archive file header. */ |
| 1275 | |
| 1276 | /* We need spaces, not null bytes, in the header. */ |
| 1277 | for (p = (char *) &fhdr; p < (char *) &fhdr + SIZEOF_AR_FILE_HDR; p++) |
| 1278 | if (*p == '\0') |
| 1279 | *p = ' '; |
| 1280 | |
| 1281 | if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 |
| 1282 | || (bfd_write ((PTR) &fhdr, SIZEOF_AR_FILE_HDR, 1, abfd) != |
| 1283 | SIZEOF_AR_FILE_HDR)) |
| 1284 | return false; |
| 1285 | |
| 1286 | return true; |
| 1287 | } |
| 1288 | \f |
| 1289 | /* We can't use the usual coff_sizeof_headers routine, because AIX |
| 1290 | always uses an a.out header. */ |
| 1291 | |
| 1292 | /*ARGSUSED*/ |
| 1293 | static int |
| 1294 | _bfd_xcoff_sizeof_headers (abfd, reloc) |
| 1295 | bfd *abfd; |
| 1296 | boolean reloc; |
| 1297 | { |
| 1298 | int size; |
| 1299 | |
| 1300 | size = FILHSZ; |
| 1301 | if (xcoff_data (abfd)->full_aouthdr) |
| 1302 | size += AOUTSZ; |
| 1303 | else |
| 1304 | size += SMALL_AOUTSZ; |
| 1305 | size += abfd->section_count * SCNHSZ; |
| 1306 | return size; |
| 1307 | } |
| 1308 | \f |
| 1309 | #define CORE_FILE_P _bfd_dummy_target |
| 1310 | |
| 1311 | #define coff_core_file_failing_command _bfd_nocore_core_file_failing_command |
| 1312 | #define coff_core_file_failing_signal _bfd_nocore_core_file_failing_signal |
| 1313 | #define coff_core_file_matches_executable_p \ |
| 1314 | _bfd_nocore_core_file_matches_executable_p |
| 1315 | |
| 1316 | #ifdef AIX_CORE |
| 1317 | #undef CORE_FILE_P |
| 1318 | #define CORE_FILE_P rs6000coff_core_p |
| 1319 | extern const bfd_target * rs6000coff_core_p (); |
| 1320 | extern boolean rs6000coff_get_section_contents (); |
| 1321 | extern boolean rs6000coff_core_file_matches_executable_p (); |
| 1322 | |
| 1323 | #undef coff_core_file_matches_executable_p |
| 1324 | #define coff_core_file_matches_executable_p \ |
| 1325 | rs6000coff_core_file_matches_executable_p |
| 1326 | |
| 1327 | extern char *rs6000coff_core_file_failing_command PARAMS ((bfd *abfd)); |
| 1328 | #undef coff_core_file_failing_command |
| 1329 | #define coff_core_file_failing_command rs6000coff_core_file_failing_command |
| 1330 | |
| 1331 | extern int rs6000coff_core_file_failing_signal PARAMS ((bfd *abfd)); |
| 1332 | #undef coff_core_file_failing_signal |
| 1333 | #define coff_core_file_failing_signal rs6000coff_core_file_failing_signal |
| 1334 | |
| 1335 | #undef coff_get_section_contents |
| 1336 | #define coff_get_section_contents rs6000coff_get_section_contents |
| 1337 | #endif /* AIX_CORE */ |
| 1338 | |
| 1339 | #ifdef LYNX_CORE |
| 1340 | |
| 1341 | #undef CORE_FILE_P |
| 1342 | #define CORE_FILE_P lynx_core_file_p |
| 1343 | extern const bfd_target *lynx_core_file_p PARAMS ((bfd *abfd)); |
| 1344 | |
| 1345 | extern boolean lynx_core_file_matches_executable_p PARAMS ((bfd *core_bfd, |
| 1346 | bfd *exec_bfd)); |
| 1347 | #undef coff_core_file_matches_executable_p |
| 1348 | #define coff_core_file_matches_executable_p lynx_core_file_matches_executable_p |
| 1349 | |
| 1350 | extern char *lynx_core_file_failing_command PARAMS ((bfd *abfd)); |
| 1351 | #undef coff_core_file_failing_command |
| 1352 | #define coff_core_file_failing_command lynx_core_file_failing_command |
| 1353 | |
| 1354 | extern int lynx_core_file_failing_signal PARAMS ((bfd *abfd)); |
| 1355 | #undef coff_core_file_failing_signal |
| 1356 | #define coff_core_file_failing_signal lynx_core_file_failing_signal |
| 1357 | |
| 1358 | #endif /* LYNX_CORE */ |
| 1359 | |
| 1360 | #define _bfd_xcoff_bfd_get_relocated_section_contents \ |
| 1361 | coff_bfd_get_relocated_section_contents |
| 1362 | #define _bfd_xcoff_bfd_relax_section coff_bfd_relax_section |
| 1363 | #define _bfd_xcoff_bfd_link_split_section coff_bfd_link_split_section |
| 1364 | |
| 1365 | /* The transfer vector that leads the outside world to all of the above. */ |
| 1366 | |
| 1367 | const bfd_target |
| 1368 | #ifdef TARGET_SYM |
| 1369 | TARGET_SYM = |
| 1370 | #else |
| 1371 | rs6000coff_vec = |
| 1372 | #endif |
| 1373 | { |
| 1374 | #ifdef TARGET_NAME |
| 1375 | TARGET_NAME, |
| 1376 | #else |
| 1377 | "aixcoff-rs6000", /* name */ |
| 1378 | #endif |
| 1379 | bfd_target_coff_flavour, |
| 1380 | BFD_ENDIAN_BIG, /* data byte order is big */ |
| 1381 | BFD_ENDIAN_BIG, /* header byte order is big */ |
| 1382 | |
| 1383 | (HAS_RELOC | EXEC_P | /* object flags */ |
| 1384 | HAS_LINENO | HAS_DEBUG | DYNAMIC | |
| 1385 | HAS_SYMS | HAS_LOCALS | WP_TEXT), |
| 1386 | |
| 1387 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 1388 | 0, /* leading char */ |
| 1389 | '/', /* ar_pad_char */ |
| 1390 | 15, /* ar_max_namelen??? FIXMEmgo */ |
| 1391 | |
| 1392 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 1393 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 1394 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ |
| 1395 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 1396 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 1397 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ |
| 1398 | |
| 1399 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
| 1400 | xcoff_archive_p, CORE_FILE_P}, |
| 1401 | {bfd_false, coff_mkobject, /* bfd_set_format */ |
| 1402 | _bfd_generic_mkarchive, bfd_false}, |
| 1403 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ |
| 1404 | xcoff_write_archive_contents, bfd_false}, |
| 1405 | |
| 1406 | BFD_JUMP_TABLE_GENERIC (coff), |
| 1407 | BFD_JUMP_TABLE_COPY (coff), |
| 1408 | BFD_JUMP_TABLE_CORE (coff), |
| 1409 | BFD_JUMP_TABLE_ARCHIVE (xcoff), |
| 1410 | BFD_JUMP_TABLE_SYMBOLS (coff), |
| 1411 | BFD_JUMP_TABLE_RELOCS (coff), |
| 1412 | BFD_JUMP_TABLE_WRITE (coff), |
| 1413 | BFD_JUMP_TABLE_LINK (_bfd_xcoff), |
| 1414 | BFD_JUMP_TABLE_DYNAMIC (_bfd_xcoff), |
| 1415 | |
| 1416 | COFF_SWAP_TABLE, |
| 1417 | }; |