1/* BFD back-end for IBM RS/6000 "XCOFF" files. 2 Copyright (C) 1990-2017 Free Software Foundation, Inc. 3 Written by Metin G. Ozisik, Mimi Phuong-Thao Vo, and John Gilmore. 4 Archive support from Damon A. Permezel. 5 Contributed by IBM Corporation and Cygnus Support. 6 7 This file is part of BFD, the Binary File Descriptor library. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program; if not, write to the Free Software 21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 22 MA 02110-1301, USA. */ 23 24#include "sysdep.h" 25#include "libiberty.h" 26#include "bfd.h" 27#include "bfdlink.h" 28#include "libbfd.h" 29#include "coff/internal.h" 30#include "coff/xcoff.h" 31#include "coff/rs6000.h" 32#include "libcoff.h" 33#include "libxcoff.h" 34 35extern bfd_boolean _bfd_xcoff_mkobject (bfd *); 36extern bfd_boolean _bfd_xcoff_copy_private_bfd_data (bfd *, bfd *); 37extern bfd_boolean _bfd_xcoff_is_local_label_name (bfd *, const char *); 38extern reloc_howto_type *_bfd_xcoff_reloc_type_lookup 39 (bfd *, bfd_reloc_code_real_type); 40extern bfd_boolean _bfd_xcoff_slurp_armap (bfd *); 41extern const bfd_target *_bfd_xcoff_archive_p (bfd *); 42extern void * _bfd_xcoff_read_ar_hdr (bfd *); 43extern bfd *_bfd_xcoff_openr_next_archived_file (bfd *, bfd *); 44extern int _bfd_xcoff_stat_arch_elt (bfd *, struct stat *); 45extern bfd_boolean _bfd_xcoff_write_armap 46 (bfd *, unsigned int, struct orl *, unsigned int, int); 47extern bfd_boolean _bfd_xcoff_write_archive_contents (bfd *); 48extern int _bfd_xcoff_sizeof_headers (bfd *, struct bfd_link_info *); 49extern void _bfd_xcoff_swap_sym_in (bfd *, void *, void *); 50extern unsigned int _bfd_xcoff_swap_sym_out (bfd *, void *, void *); 51extern void _bfd_xcoff_swap_aux_in (bfd *, void *, int, int, int, int, void *); 52extern unsigned int _bfd_xcoff_swap_aux_out 53 (bfd *, void *, int, int, int, int, void *); 54static void xcoff_swap_reloc_in (bfd *, void *, void *); 55static unsigned int xcoff_swap_reloc_out (bfd *, void *, void *); 56 57/* Forward declare xcoff_rtype2howto for coffcode.h macro. */ 58void xcoff_rtype2howto (arelent *, struct internal_reloc *); 59 60/* coffcode.h needs these to be defined. */ 61#define RS6000COFF_C 1 62 63#define SELECT_RELOC(internal, howto) \ 64 { \ 65 internal.r_type = howto->type; \ 66 internal.r_size = \ 67 ((howto->complain_on_overflow == complain_overflow_signed \ 68 ? 0x80 \ 69 : 0) \ 70 | (howto->bitsize - 1)); \ 71 } 72 73#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) 74#define COFF_LONG_FILENAMES 75#define NO_COFF_SYMBOLS 76#define RTYPE2HOWTO(cache_ptr, dst) xcoff_rtype2howto (cache_ptr, dst) 77#define coff_mkobject _bfd_xcoff_mkobject 78#define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name 79#ifdef AIX_CORE 80extern const bfd_target * rs6000coff_core_p (bfd *abfd); 81extern bfd_boolean rs6000coff_core_file_matches_executable_p 82 (bfd *cbfd, bfd *ebfd); 83extern char *rs6000coff_core_file_failing_command (bfd *abfd); 84extern int rs6000coff_core_file_failing_signal (bfd *abfd); 85#define CORE_FILE_P rs6000coff_core_p 86#define coff_core_file_failing_command \ 87 rs6000coff_core_file_failing_command 88#define coff_core_file_failing_signal \ 89 rs6000coff_core_file_failing_signal 90#define coff_core_file_matches_executable_p \ 91 rs6000coff_core_file_matches_executable_p 92#define coff_core_file_pid \ 93 _bfd_nocore_core_file_pid 94#else 95#define CORE_FILE_P _bfd_dummy_target 96#define coff_core_file_failing_command \ 97 _bfd_nocore_core_file_failing_command 98#define coff_core_file_failing_signal \ 99 _bfd_nocore_core_file_failing_signal 100#define coff_core_file_matches_executable_p \ 101 _bfd_nocore_core_file_matches_executable_p 102#define coff_core_file_pid \ 103 _bfd_nocore_core_file_pid 104#endif 105#define coff_SWAP_sym_in _bfd_xcoff_swap_sym_in 106#define coff_SWAP_sym_out _bfd_xcoff_swap_sym_out 107#define coff_SWAP_aux_in _bfd_xcoff_swap_aux_in 108#define coff_SWAP_aux_out _bfd_xcoff_swap_aux_out 109#define coff_swap_reloc_in xcoff_swap_reloc_in 110#define coff_swap_reloc_out xcoff_swap_reloc_out 111#define NO_COFF_RELOCS 112 113#ifndef bfd_pe_print_pdata 114#define bfd_pe_print_pdata NULL 115#endif 116 117#include <stdint.h> 118#include "coffcode.h" 119 120/* The main body of code is in coffcode.h. */ 121 122static const char *normalize_filename (bfd *); 123static bfd_boolean xcoff_write_armap_old 124 (bfd *, unsigned int, struct orl *, unsigned int, int); 125static bfd_boolean xcoff_write_armap_big 126 (bfd *, unsigned int, struct orl *, unsigned int, int); 127static bfd_boolean xcoff_write_archive_contents_old (bfd *); 128static bfd_boolean xcoff_write_archive_contents_big (bfd *); 129static void xcoff_swap_ldhdr_in (bfd *, const void *, struct internal_ldhdr *); 130static void xcoff_swap_ldhdr_out (bfd *, const struct internal_ldhdr *, void *); 131static void xcoff_swap_ldsym_in (bfd *, const void *, struct internal_ldsym *); 132static void xcoff_swap_ldsym_out (bfd *, const struct internal_ldsym *, void *); 133static void xcoff_swap_ldrel_in (bfd *, const void *, struct internal_ldrel *); 134static void xcoff_swap_ldrel_out (bfd *, const struct internal_ldrel *, void *); 135static bfd_boolean xcoff_ppc_relocate_section 136 (bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, 137 struct internal_reloc *, struct internal_syment *, asection **); 138static bfd_boolean _bfd_xcoff_put_ldsymbol_name 139 (bfd *, struct xcoff_loader_info *, struct internal_ldsym *, const char *); 140static asection *xcoff_create_csect_from_smclas 141 (bfd *, union internal_auxent *, const char *); 142static bfd_boolean xcoff_is_lineno_count_overflow (bfd *, bfd_vma); 143static bfd_boolean xcoff_is_reloc_count_overflow (bfd *, bfd_vma); 144static bfd_vma xcoff_loader_symbol_offset (bfd *, struct internal_ldhdr *); 145static bfd_vma xcoff_loader_reloc_offset (bfd *, struct internal_ldhdr *); 146static bfd_boolean xcoff_generate_rtinit 147 (bfd *, const char *, const char *, bfd_boolean); 148static bfd_boolean do_pad (bfd *, unsigned int); 149static bfd_boolean do_copy (bfd *, bfd *); 150 151/* Relocation functions */ 152static bfd_boolean xcoff_reloc_type_br (XCOFF_RELOC_FUNCTION_ARGS); 153 154static bfd_boolean xcoff_complain_overflow_dont_func 155 (XCOFF_COMPLAIN_FUNCTION_ARGS); 156static bfd_boolean xcoff_complain_overflow_bitfield_func 157 (XCOFF_COMPLAIN_FUNCTION_ARGS); 158static bfd_boolean xcoff_complain_overflow_signed_func 159 (XCOFF_COMPLAIN_FUNCTION_ARGS); 160static bfd_boolean xcoff_complain_overflow_unsigned_func 161 (XCOFF_COMPLAIN_FUNCTION_ARGS); 162 163bfd_boolean (*xcoff_calculate_relocation[XCOFF_MAX_CALCULATE_RELOCATION]) 164 (XCOFF_RELOC_FUNCTION_ARGS) = 165{ 166 xcoff_reloc_type_pos, /* R_POS (0x00) */ 167 xcoff_reloc_type_neg, /* R_NEG (0x01) */ 168 xcoff_reloc_type_rel, /* R_REL (0x02) */ 169 xcoff_reloc_type_toc, /* R_TOC (0x03) */ 170 xcoff_reloc_type_fail, /* R_RTB (0x04) */ 171 xcoff_reloc_type_toc, /* R_GL (0x05) */ 172 xcoff_reloc_type_toc, /* R_TCL (0x06) */ 173 xcoff_reloc_type_fail, /* (0x07) */ 174 xcoff_reloc_type_ba, /* R_BA (0x08) */ 175 xcoff_reloc_type_fail, /* (0x09) */ 176 xcoff_reloc_type_br, /* R_BR (0x0a) */ 177 xcoff_reloc_type_fail, /* (0x0b) */ 178 xcoff_reloc_type_pos, /* R_RL (0x0c) */ 179 xcoff_reloc_type_pos, /* R_RLA (0x0d) */ 180 xcoff_reloc_type_fail, /* (0x0e) */ 181 xcoff_reloc_type_noop, /* R_REF (0x0f) */ 182 xcoff_reloc_type_fail, /* (0x10) */ 183 xcoff_reloc_type_fail, /* (0x11) */ 184 xcoff_reloc_type_toc, /* R_TRL (0x12) */ 185 xcoff_reloc_type_toc, /* R_TRLA (0x13) */ 186 xcoff_reloc_type_fail, /* R_RRTBI (0x14) */ 187 xcoff_reloc_type_fail, /* R_RRTBA (0x15) */ 188 xcoff_reloc_type_ba, /* R_CAI (0x16) */ 189 xcoff_reloc_type_crel, /* R_CREL (0x17) */ 190 xcoff_reloc_type_ba, /* R_RBA (0x18) */ 191 xcoff_reloc_type_ba, /* R_RBAC (0x19) */ 192 xcoff_reloc_type_br, /* R_RBR (0x1a) */ 193 xcoff_reloc_type_ba, /* R_RBRC (0x1b) */ 194}; 195 196bfd_boolean (*xcoff_complain_overflow[XCOFF_MAX_COMPLAIN_OVERFLOW]) 197 (XCOFF_COMPLAIN_FUNCTION_ARGS) = 198{ 199 xcoff_complain_overflow_dont_func, 200 xcoff_complain_overflow_bitfield_func, 201 xcoff_complain_overflow_signed_func, 202 xcoff_complain_overflow_unsigned_func, 203}; 204 205/* Information about one member of an archive. */ 206struct member_layout { 207 /* The archive member that this structure describes. */ 208 bfd *member; 209 210 /* The number of bytes of padding that must be inserted before the 211 start of the member in order to ensure that the section contents 212 are correctly aligned. */ 213 unsigned int leading_padding; 214 215 /* The offset of MEMBER from the start of the archive (i.e. the end 216 of the leading padding). */ 217 file_ptr offset; 218 219 /* The normalized name of MEMBER. */ 220 const char *name; 221 222 /* The length of NAME, without padding. */ 223 bfd_size_type namlen; 224 225 /* The length of NAME, with padding. */ 226 bfd_size_type padded_namlen; 227 228 /* The size of MEMBER's header, including the name and magic sequence. */ 229 bfd_size_type header_size; 230 231 /* The size of the MEMBER's contents. */ 232 bfd_size_type contents_size; 233 234 /* The number of bytes of padding that must be inserted after MEMBER 235 in order to preserve even alignment. */ 236 bfd_size_type trailing_padding; 237}; 238 239/* A structure used for iterating over the members of an archive. */ 240struct archive_iterator { 241 /* The archive itself. */ 242 bfd *archive; 243 244 /* Information about the current archive member. */ 245 struct member_layout current; 246 247 /* Information about the next archive member. MEMBER is null if there 248 are no more archive members, in which case OFFSET is the offset of 249 the first unused byte. */ 250 struct member_layout next; 251}; 252 253/* Initialize INFO so that it describes member MEMBER of archive ARCHIVE. 254 OFFSET is the even-padded offset of MEMBER, not including any leading 255 padding needed for section alignment. */ 256 257static void 258member_layout_init (struct member_layout *info, bfd *archive, 259 bfd *member, file_ptr offset) 260{ 261 info->member = member; 262 info->leading_padding = 0; 263 if (member) 264 { 265 info->name = normalize_filename (member); 266 info->namlen = strlen (info->name); 267 info->padded_namlen = info->namlen + (info->namlen & 1); 268 if (xcoff_big_format_p (archive)) 269 info->header_size = SIZEOF_AR_HDR_BIG; 270 else 271 info->header_size = SIZEOF_AR_HDR; 272 info->header_size += info->padded_namlen + SXCOFFARFMAG; 273 info->contents_size = arelt_size (member); 274 info->trailing_padding = info->contents_size & 1; 275 276 if (bfd_check_format (member, bfd_object) 277 && bfd_get_flavour (member) == bfd_target_xcoff_flavour 278 && (member->flags & DYNAMIC) != 0) 279 info->leading_padding 280 = (-(offset + info->header_size) 281 & ((1 << bfd_xcoff_text_align_power (member)) - 1)); 282 } 283 info->offset = offset + info->leading_padding; 284} 285 286/* Set up ITERATOR to iterate through archive ARCHIVE. */ 287 288static void 289archive_iterator_begin (struct archive_iterator *iterator, 290 bfd *archive) 291{ 292 iterator->archive = archive; 293 member_layout_init (&iterator->next, archive, archive->archive_head, 294 xcoff_big_format_p (archive) 295 ? SIZEOF_AR_FILE_HDR_BIG 296 : SIZEOF_AR_FILE_HDR); 297} 298 299/* Make ITERATOR visit the first unvisited archive member. Return true 300 on success; return false if all members have been visited. */ 301 302static bfd_boolean 303archive_iterator_next (struct archive_iterator *iterator) 304{ 305 if (!iterator->next.member) 306 return FALSE; 307 308 iterator->current = iterator->next; 309 member_layout_init (&iterator->next, iterator->archive, 310 iterator->current.member->archive_next, 311 iterator->current.offset 312 + iterator->current.header_size 313 + iterator->current.contents_size 314 + iterator->current.trailing_padding); 315 return TRUE; 316} 317 318/* We use our own tdata type. Its first field is the COFF tdata type, 319 so the COFF routines are compatible. */ 320 321bfd_boolean 322_bfd_xcoff_mkobject (bfd *abfd) 323{ 324 coff_data_type *coff; 325 bfd_size_type amt = sizeof (struct xcoff_tdata); 326 327 abfd->tdata.xcoff_obj_data = (struct xcoff_tdata *) bfd_zalloc (abfd, amt); 328 if (abfd->tdata.xcoff_obj_data == NULL) 329 return FALSE; 330 coff = coff_data (abfd); 331 coff->symbols = (coff_symbol_type *) NULL; 332 coff->conversion_table = (unsigned int *) NULL; 333 coff->raw_syments = (struct coff_ptr_struct *) NULL; 334 coff->relocbase = 0; 335 336 xcoff_data (abfd)->modtype = ('1' << 8) | 'L'; 337 338 /* We set cputype to -1 to indicate that it has not been 339 initialized. */ 340 xcoff_data (abfd)->cputype = -1; 341 342 xcoff_data (abfd)->csects = NULL; 343 xcoff_data (abfd)->debug_indices = NULL; 344 345 /* text section alignment is different than the default */ 346 bfd_xcoff_text_align_power (abfd) = 2; 347 348 return TRUE; 349} 350 351/* Copy XCOFF data from one BFD to another. */ 352 353bfd_boolean 354_bfd_xcoff_copy_private_bfd_data (bfd *ibfd, bfd *obfd) 355{ 356 struct xcoff_tdata *ix, *ox; 357 asection *sec; 358 359 if (ibfd->xvec != obfd->xvec) 360 return TRUE; 361 ix = xcoff_data (ibfd); 362 ox = xcoff_data (obfd); 363 ox->full_aouthdr = ix->full_aouthdr; 364 ox->toc = ix->toc; 365 if (ix->sntoc == 0) 366 ox->sntoc = 0; 367 else 368 { 369 sec = coff_section_from_bfd_index (ibfd, ix->sntoc); 370 if (sec == NULL) 371 ox->sntoc = 0; 372 else 373 ox->sntoc = sec->output_section->target_index; 374 } 375 if (ix->snentry == 0) 376 ox->snentry = 0; 377 else 378 { 379 sec = coff_section_from_bfd_index (ibfd, ix->snentry); 380 if (sec == NULL) 381 ox->snentry = 0; 382 else 383 ox->snentry = sec->output_section->target_index; 384 } 385 bfd_xcoff_text_align_power (obfd) = bfd_xcoff_text_align_power (ibfd); 386 bfd_xcoff_data_align_power (obfd) = bfd_xcoff_data_align_power (ibfd); 387 ox->modtype = ix->modtype; 388 ox->cputype = ix->cputype; 389 ox->maxdata = ix->maxdata; 390 ox->maxstack = ix->maxstack; 391 return TRUE; 392} 393 394/* I don't think XCOFF really has a notion of local labels based on 395 name. This will mean that ld -X doesn't actually strip anything. 396 The AIX native linker does not have a -X option, and it ignores the 397 -x option. */ 398 399bfd_boolean 400_bfd_xcoff_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED, 401 const char *name ATTRIBUTE_UNUSED) 402{ 403 return FALSE; 404} 405 406void 407_bfd_xcoff_swap_sym_in (bfd *abfd, void * ext1, void * in1) 408{ 409 SYMENT *ext = (SYMENT *)ext1; 410 struct internal_syment * in = (struct internal_syment *)in1; 411 412 if (ext->e.e_name[0] != 0) 413 { 414 memcpy (in->_n._n_name, ext->e.e_name, SYMNMLEN); 415 } 416 else 417 { 418 in->_n._n_n._n_zeroes = 0; 419 in->_n._n_n._n_offset = H_GET_32 (abfd, ext->e.e.e_offset); 420 } 421 422 in->n_value = H_GET_32 (abfd, ext->e_value); 423 in->n_scnum = (short) H_GET_16 (abfd, ext->e_scnum); 424 in->n_type = H_GET_16 (abfd, ext->e_type); 425 in->n_sclass = H_GET_8 (abfd, ext->e_sclass); 426 in->n_numaux = H_GET_8 (abfd, ext->e_numaux); 427} 428 429unsigned int 430_bfd_xcoff_swap_sym_out (bfd *abfd, void * inp, void * extp) 431{ 432 struct internal_syment *in = (struct internal_syment *)inp; 433 SYMENT *ext =(SYMENT *)extp; 434 435 if (in->_n._n_name[0] != 0) 436 { 437 memcpy (ext->e.e_name, in->_n._n_name, SYMNMLEN); 438 } 439 else 440 { 441 H_PUT_32 (abfd, 0, ext->e.e.e_zeroes); 442 H_PUT_32 (abfd, in->_n._n_n._n_offset, ext->e.e.e_offset); 443 } 444 445 H_PUT_32 (abfd, in->n_value, ext->e_value); 446 H_PUT_16 (abfd, in->n_scnum, ext->e_scnum); 447 H_PUT_16 (abfd, in->n_type, ext->e_type); 448 H_PUT_8 (abfd, in->n_sclass, ext->e_sclass); 449 H_PUT_8 (abfd, in->n_numaux, ext->e_numaux); 450 return bfd_coff_symesz (abfd); 451} 452 453void 454_bfd_xcoff_swap_aux_in (bfd *abfd, void * ext1, int type, int in_class, 455 int indx, int numaux, void * in1) 456{ 457 AUXENT * ext = (AUXENT *)ext1; 458 union internal_auxent *in = (union internal_auxent *)in1; 459 460 switch (in_class) 461 { 462 case C_FILE: 463 if (ext->x_file.x_n.x_fname[0] == 0) 464 { 465 in->x_file.x_n.x_zeroes = 0; 466 in->x_file.x_n.x_offset = 467 H_GET_32 (abfd, ext->x_file.x_n.x_n.x_offset); 468 } 469 else 470 { 471 if (numaux > 1) 472 { 473 if (indx == 0) 474 memcpy (in->x_file.x_fname, ext->x_file.x_n.x_fname, 475 numaux * sizeof (AUXENT)); 476 } 477 else 478 { 479 memcpy (in->x_file.x_fname, ext->x_file.x_n.x_fname, FILNMLEN); 480 } 481 } 482 goto end; 483 484 /* RS/6000 "csect" auxents */ 485 case C_EXT: 486 case C_AIX_WEAKEXT: 487 case C_HIDEXT: 488 if (indx + 1 == numaux) 489 { 490 in->x_csect.x_scnlen.l = H_GET_32 (abfd, ext->x_csect.x_scnlen); 491 in->x_csect.x_parmhash = H_GET_32 (abfd, ext->x_csect.x_parmhash); 492 in->x_csect.x_snhash = H_GET_16 (abfd, ext->x_csect.x_snhash); 493 /* We don't have to hack bitfields in x_smtyp because it's 494 defined by shifts-and-ands, which are equivalent on all 495 byte orders. */ 496 in->x_csect.x_smtyp = H_GET_8 (abfd, ext->x_csect.x_smtyp); 497 in->x_csect.x_smclas = H_GET_8 (abfd, ext->x_csect.x_smclas); 498 in->x_csect.x_stab = H_GET_32 (abfd, ext->x_csect.x_stab); 499 in->x_csect.x_snstab = H_GET_16 (abfd, ext->x_csect.x_snstab); 500 goto end; 501 } 502 break; 503 504 case C_STAT: 505 case C_LEAFSTAT: 506 case C_HIDDEN: 507 if (type == T_NULL) 508 { 509 in->x_scn.x_scnlen = H_GET_32 (abfd, ext->x_scn.x_scnlen); 510 in->x_scn.x_nreloc = H_GET_16 (abfd, ext->x_scn.x_nreloc); 511 in->x_scn.x_nlinno = H_GET_16 (abfd, ext->x_scn.x_nlinno); 512 /* PE defines some extra fields; we zero them out for 513 safety. */ 514 in->x_scn.x_checksum = 0; 515 in->x_scn.x_associated = 0; 516 in->x_scn.x_comdat = 0; 517 518 goto end; 519 } 520 break; 521 } 522 523 in->x_sym.x_tagndx.l = H_GET_32 (abfd, ext->x_sym.x_tagndx); 524 in->x_sym.x_tvndx = H_GET_16 (abfd, ext->x_sym.x_tvndx); 525 526 if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type) 527 || ISTAG (in_class)) 528 { 529 in->x_sym.x_fcnary.x_fcn.x_lnnoptr = 530 H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr); 531 in->x_sym.x_fcnary.x_fcn.x_endndx.l = 532 H_GET_32 (abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx); 533 } 534 else 535 { 536 in->x_sym.x_fcnary.x_ary.x_dimen[0] = 537 H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[0]); 538 in->x_sym.x_fcnary.x_ary.x_dimen[1] = 539 H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[1]); 540 in->x_sym.x_fcnary.x_ary.x_dimen[2] = 541 H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[2]); 542 in->x_sym.x_fcnary.x_ary.x_dimen[3] = 543 H_GET_16 (abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[3]); 544 } 545 546 if (ISFCN (type)) 547 { 548 in->x_sym.x_misc.x_fsize = H_GET_32 (abfd, ext->x_sym.x_misc.x_fsize); 549 } 550 else 551 { 552 in->x_sym.x_misc.x_lnsz.x_lnno = 553 H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_lnno); 554 in->x_sym.x_misc.x_lnsz.x_size = 555 H_GET_16 (abfd, ext->x_sym.x_misc.x_lnsz.x_size); 556 } 557 558 end: ; 559 /* The semicolon is because MSVC doesn't like labels at 560 end of block. */ 561} 562 563unsigned int 564_bfd_xcoff_swap_aux_out (bfd *abfd, void * inp, int type, int in_class, 565 int indx ATTRIBUTE_UNUSED, 566 int numaux ATTRIBUTE_UNUSED, 567 void * extp) 568{ 569 union internal_auxent *in = (union internal_auxent *)inp; 570 AUXENT *ext = (AUXENT *)extp; 571 572 memset (ext, 0, bfd_coff_auxesz (abfd)); 573 switch (in_class) 574 { 575 case C_FILE: 576 if (in->x_file.x_fname[0] == 0) 577 { 578 H_PUT_32 (abfd, 0, ext->x_file.x_n.x_n.x_zeroes); 579 H_PUT_32 (abfd, in->x_file.x_n.x_offset, 580 ext->x_file.x_n.x_n.x_offset); 581 } 582 else 583 { 584 memcpy (ext->x_file.x_n.x_fname, in->x_file.x_fname, FILNMLEN); 585 } 586 goto end; 587 588 /* RS/6000 "csect" auxents */ 589 case C_EXT: 590 case C_AIX_WEAKEXT: 591 case C_HIDEXT: 592 if (indx + 1 == numaux) 593 { 594 H_PUT_32 (abfd, in->x_csect.x_scnlen.l, ext->x_csect.x_scnlen); 595 H_PUT_32 (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash); 596 H_PUT_16 (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash); 597 /* We don't have to hack bitfields in x_smtyp because it's 598 defined by shifts-and-ands, which are equivalent on all 599 byte orders. */ 600 H_PUT_8 (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp); 601 H_PUT_8 (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas); 602 H_PUT_32 (abfd, in->x_csect.x_stab, ext->x_csect.x_stab); 603 H_PUT_16 (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab); 604 goto end; 605 } 606 break; 607 608 case C_STAT: 609 case C_LEAFSTAT: 610 case C_HIDDEN: 611 if (type == T_NULL) 612 { 613 H_PUT_32 (abfd, in->x_scn.x_scnlen, ext->x_scn.x_scnlen); 614 H_PUT_16 (abfd, in->x_scn.x_nreloc, ext->x_scn.x_nreloc); 615 H_PUT_16 (abfd, in->x_scn.x_nlinno, ext->x_scn.x_nlinno); 616 goto end; 617 } 618 break; 619 } 620 621 H_PUT_32 (abfd, in->x_sym.x_tagndx.l, ext->x_sym.x_tagndx); 622 H_PUT_16 (abfd, in->x_sym.x_tvndx, ext->x_sym.x_tvndx); 623 624 if (in_class == C_BLOCK || in_class == C_FCN || ISFCN (type) 625 || ISTAG (in_class)) 626 { 627 H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, 628 ext->x_sym.x_fcnary.x_fcn.x_lnnoptr); 629 H_PUT_32 (abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, 630 ext->x_sym.x_fcnary.x_fcn.x_endndx); 631 } 632 else 633 { 634 H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0], 635 ext->x_sym.x_fcnary.x_ary.x_dimen[0]); 636 H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1], 637 ext->x_sym.x_fcnary.x_ary.x_dimen[1]); 638 H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2], 639 ext->x_sym.x_fcnary.x_ary.x_dimen[2]); 640 H_PUT_16 (abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3], 641 ext->x_sym.x_fcnary.x_ary.x_dimen[3]); 642 } 643 644 if (ISFCN (type)) 645 H_PUT_32 (abfd, in->x_sym.x_misc.x_fsize, ext->x_sym.x_misc.x_fsize); 646 else 647 { 648 H_PUT_16 (abfd, in->x_sym.x_misc.x_lnsz.x_lnno, 649 ext->x_sym.x_misc.x_lnsz.x_lnno); 650 H_PUT_16 (abfd, in->x_sym.x_misc.x_lnsz.x_size, 651 ext->x_sym.x_misc.x_lnsz.x_size); 652 } 653 654end: 655 return bfd_coff_auxesz (abfd); 656} 657 658 659 660/* The XCOFF reloc table. Actually, XCOFF relocations specify the 661 bitsize and whether they are signed or not, along with a 662 conventional type. This table is for the types, which are used for 663 different algorithms for putting in the reloc. Many of these 664 relocs need special_function entries, which I have not written. */ 665 666 667reloc_howto_type xcoff_howto_table[] = 668{ 669 /* 0x00: Standard 32 bit relocation. */ 670 HOWTO (R_POS, /* type */ 671 0, /* rightshift */ 672 2, /* size (0 = byte, 1 = short, 2 = long) */ 673 32, /* bitsize */ 674 FALSE, /* pc_relative */ 675 0, /* bitpos */ 676 complain_overflow_bitfield, /* complain_on_overflow */ 677 0, /* special_function */ 678 "R_POS", /* name */ 679 TRUE, /* partial_inplace */ 680 0xffffffff, /* src_mask */ 681 0xffffffff, /* dst_mask */ 682 FALSE), /* pcrel_offset */ 683 684 /* 0x01: 32 bit relocation, but store negative value. */ 685 HOWTO (R_NEG, /* type */ 686 0, /* rightshift */ 687 -2, /* size (0 = byte, 1 = short, 2 = long) */ 688 32, /* bitsize */ 689 FALSE, /* pc_relative */ 690 0, /* bitpos */ 691 complain_overflow_bitfield, /* complain_on_overflow */ 692 0, /* special_function */ 693 "R_NEG", /* name */ 694 TRUE, /* partial_inplace */ 695 0xffffffff, /* src_mask */ 696 0xffffffff, /* dst_mask */ 697 FALSE), /* pcrel_offset */ 698 699 /* 0x02: 32 bit PC relative relocation. */ 700 HOWTO (R_REL, /* type */ 701 0, /* rightshift */ 702 2, /* size (0 = byte, 1 = short, 2 = long) */ 703 32, /* bitsize */ 704 TRUE, /* pc_relative */ 705 0, /* bitpos */ 706 complain_overflow_signed, /* complain_on_overflow */ 707 0, /* special_function */ 708 "R_REL", /* name */ 709 TRUE, /* partial_inplace */ 710 0xffffffff, /* src_mask */ 711 0xffffffff, /* dst_mask */ 712 FALSE), /* pcrel_offset */ 713 714 /* 0x03: 16 bit TOC relative relocation. */ 715 HOWTO (R_TOC, /* type */ 716 0, /* rightshift */ 717 1, /* size (0 = byte, 1 = short, 2 = long) */ 718 16, /* bitsize */ 719 FALSE, /* pc_relative */ 720 0, /* bitpos */ 721 complain_overflow_bitfield, /* complain_on_overflow */ 722 0, /* special_function */ 723 "R_TOC", /* name */ 724 TRUE, /* partial_inplace */ 725 0xffff, /* src_mask */ 726 0xffff, /* dst_mask */ 727 FALSE), /* pcrel_offset */ 728 729 /* 0x04: I don't really know what this is. */ 730 HOWTO (R_RTB, /* type */ 731 1, /* rightshift */ 732 2, /* size (0 = byte, 1 = short, 2 = long) */ 733 32, /* bitsize */ 734 FALSE, /* pc_relative */ 735 0, /* bitpos */ 736 complain_overflow_bitfield, /* complain_on_overflow */ 737 0, /* special_function */ 738 "R_RTB", /* name */ 739 TRUE, /* partial_inplace */ 740 0xffffffff, /* src_mask */ 741 0xffffffff, /* dst_mask */ 742 FALSE), /* pcrel_offset */ 743 744 /* 0x05: External TOC relative symbol. */ 745 HOWTO (R_GL, /* type */ 746 0, /* rightshift */ 747 1, /* size (0 = byte, 1 = short, 2 = long) */ 748 16, /* bitsize */ 749 FALSE, /* pc_relative */ 750 0, /* bitpos */ 751 complain_overflow_bitfield, /* complain_on_overflow */ 752 0, /* special_function */ 753 "R_GL", /* name */ 754 TRUE, /* partial_inplace */ 755 0xffff, /* src_mask */ 756 0xffff, /* dst_mask */ 757 FALSE), /* pcrel_offset */ 758 759 /* 0x06: Local TOC relative symbol. */ 760 HOWTO (R_TCL, /* type */ 761 0, /* rightshift */ 762 1, /* size (0 = byte, 1 = short, 2 = long) */ 763 16, /* bitsize */ 764 FALSE, /* pc_relative */ 765 0, /* bitpos */ 766 complain_overflow_bitfield, /* complain_on_overflow */ 767 0, /* special_function */ 768 "R_TCL", /* name */ 769 TRUE, /* partial_inplace */ 770 0xffff, /* src_mask */ 771 0xffff, /* dst_mask */ 772 FALSE), /* pcrel_offset */ 773 774 EMPTY_HOWTO (7), 775 776 /* 0x08: Non modifiable absolute branch. */ 777 HOWTO (R_BA, /* type */ 778 0, /* rightshift */ 779 2, /* size (0 = byte, 1 = short, 2 = long) */ 780 26, /* bitsize */ 781 FALSE, /* pc_relative */ 782 0, /* bitpos */ 783 complain_overflow_bitfield, /* complain_on_overflow */ 784 0, /* special_function */ 785 "R_BA_26", /* name */ 786 TRUE, /* partial_inplace */ 787 0x03fffffc, /* src_mask */ 788 0x03fffffc, /* dst_mask */ 789 FALSE), /* pcrel_offset */ 790 791 EMPTY_HOWTO (9), 792 793 /* 0x0a: Non modifiable relative branch. */ 794 HOWTO (R_BR, /* type */ 795 0, /* rightshift */ 796 2, /* size (0 = byte, 1 = short, 2 = long) */ 797 26, /* bitsize */ 798 TRUE, /* pc_relative */ 799 0, /* bitpos */ 800 complain_overflow_signed, /* complain_on_overflow */ 801 0, /* special_function */ 802 "R_BR", /* name */ 803 TRUE, /* partial_inplace */ 804 0x03fffffc, /* src_mask */ 805 0x03fffffc, /* dst_mask */ 806 FALSE), /* pcrel_offset */ 807 808 EMPTY_HOWTO (0xb), 809 810 /* 0x0c: Indirect load. */ 811 HOWTO (R_RL, /* type */ 812 0, /* rightshift */ 813 1, /* size (0 = byte, 1 = short, 2 = long) */ 814 16, /* bitsize */ 815 FALSE, /* pc_relative */ 816 0, /* bitpos */ 817 complain_overflow_bitfield, /* complain_on_overflow */ 818 0, /* special_function */ 819 "R_RL", /* name */ 820 TRUE, /* partial_inplace */ 821 0xffff, /* src_mask */ 822 0xffff, /* dst_mask */ 823 FALSE), /* pcrel_offset */ 824 825 /* 0x0d: Load address. */ 826 HOWTO (R_RLA, /* type */ 827 0, /* rightshift */ 828 1, /* size (0 = byte, 1 = short, 2 = long) */ 829 16, /* bitsize */ 830 FALSE, /* pc_relative */ 831 0, /* bitpos */ 832 complain_overflow_bitfield, /* complain_on_overflow */ 833 0, /* special_function */ 834 "R_RLA", /* name */ 835 TRUE, /* partial_inplace */ 836 0xffff, /* src_mask */ 837 0xffff, /* dst_mask */ 838 FALSE), /* pcrel_offset */ 839 840 EMPTY_HOWTO (0xe), 841 842 /* 0x0f: Non-relocating reference. Bitsize is 1 so that r_rsize is 0. */ 843 HOWTO (R_REF, /* type */ 844 0, /* rightshift */ 845 0, /* size (0 = byte, 1 = short, 2 = long) */ 846 1, /* bitsize */ 847 FALSE, /* pc_relative */ 848 0, /* bitpos */ 849 complain_overflow_dont, /* complain_on_overflow */ 850 0, /* special_function */ 851 "R_REF", /* name */ 852 FALSE, /* partial_inplace */ 853 0, /* src_mask */ 854 0, /* dst_mask */ 855 FALSE), /* pcrel_offset */ 856 857 EMPTY_HOWTO (0x10), 858 EMPTY_HOWTO (0x11), 859 860 /* 0x12: TOC relative indirect load. */ 861 HOWTO (R_TRL, /* type */ 862 0, /* rightshift */ 863 1, /* size (0 = byte, 1 = short, 2 = long) */ 864 16, /* bitsize */ 865 FALSE, /* pc_relative */ 866 0, /* bitpos */ 867 complain_overflow_bitfield, /* complain_on_overflow */ 868 0, /* special_function */ 869 "R_TRL", /* name */ 870 TRUE, /* partial_inplace */ 871 0xffff, /* src_mask */ 872 0xffff, /* dst_mask */ 873 FALSE), /* pcrel_offset */ 874 875 /* 0x13: TOC relative load address. */ 876 HOWTO (R_TRLA, /* type */ 877 0, /* rightshift */ 878 1, /* size (0 = byte, 1 = short, 2 = long) */ 879 16, /* bitsize */ 880 FALSE, /* pc_relative */ 881 0, /* bitpos */ 882 complain_overflow_bitfield, /* complain_on_overflow */ 883 0, /* special_function */ 884 "R_TRLA", /* name */ 885 TRUE, /* partial_inplace */ 886 0xffff, /* src_mask */ 887 0xffff, /* dst_mask */ 888 FALSE), /* pcrel_offset */ 889 890 /* 0x14: Modifiable relative branch. */ 891 HOWTO (R_RRTBI, /* type */ 892 1, /* rightshift */ 893 2, /* size (0 = byte, 1 = short, 2 = long) */ 894 32, /* bitsize */ 895 FALSE, /* pc_relative */ 896 0, /* bitpos */ 897 complain_overflow_bitfield, /* complain_on_overflow */ 898 0, /* special_function */ 899 "R_RRTBI", /* name */ 900 TRUE, /* partial_inplace */ 901 0xffffffff, /* src_mask */ 902 0xffffffff, /* dst_mask */ 903 FALSE), /* pcrel_offset */ 904 905 /* 0x15: Modifiable absolute branch. */ 906 HOWTO (R_RRTBA, /* type */ 907 1, /* rightshift */ 908 2, /* size (0 = byte, 1 = short, 2 = long) */ 909 32, /* bitsize */ 910 FALSE, /* pc_relative */ 911 0, /* bitpos */ 912 complain_overflow_bitfield, /* complain_on_overflow */ 913 0, /* special_function */ 914 "R_RRTBA", /* name */ 915 TRUE, /* partial_inplace */ 916 0xffffffff, /* src_mask */ 917 0xffffffff, /* dst_mask */ 918 FALSE), /* pcrel_offset */ 919 920 /* 0x16: Modifiable call absolute indirect. */ 921 HOWTO (R_CAI, /* type */ 922 0, /* rightshift */ 923 1, /* size (0 = byte, 1 = short, 2 = long) */ 924 16, /* bitsize */ 925 FALSE, /* pc_relative */ 926 0, /* bitpos */ 927 complain_overflow_bitfield, /* complain_on_overflow */ 928 0, /* special_function */ 929 "R_CAI", /* name */ 930 TRUE, /* partial_inplace */ 931 0xffff, /* src_mask */ 932 0xffff, /* dst_mask */ 933 FALSE), /* pcrel_offset */ 934 935 /* 0x17: Modifiable call relative. */ 936 HOWTO (R_CREL, /* type */ 937 0, /* rightshift */ 938 1, /* size (0 = byte, 1 = short, 2 = long) */ 939 16, /* bitsize */ 940 FALSE, /* pc_relative */ 941 0, /* bitpos */ 942 complain_overflow_bitfield, /* complain_on_overflow */ 943 0, /* special_function */ 944 "R_CREL", /* name */ 945 TRUE, /* partial_inplace */ 946 0xffff, /* src_mask */ 947 0xffff, /* dst_mask */ 948 FALSE), /* pcrel_offset */ 949 950 /* 0x18: Modifiable branch absolute. */ 951 HOWTO (R_RBA, /* type */ 952 0, /* rightshift */ 953 2, /* size (0 = byte, 1 = short, 2 = long) */ 954 26, /* bitsize */ 955 FALSE, /* pc_relative */ 956 0, /* bitpos */ 957 complain_overflow_bitfield, /* complain_on_overflow */ 958 0, /* special_function */ 959 "R_RBA", /* name */ 960 TRUE, /* partial_inplace */ 961 0x03fffffc, /* src_mask */ 962 0x03fffffc, /* dst_mask */ 963 FALSE), /* pcrel_offset */ 964 965 /* 0x19: Modifiable branch absolute. */ 966 HOWTO (R_RBAC, /* type */ 967 0, /* rightshift */ 968 2, /* size (0 = byte, 1 = short, 2 = long) */ 969 32, /* bitsize */ 970 FALSE, /* pc_relative */ 971 0, /* bitpos */ 972 complain_overflow_bitfield, /* complain_on_overflow */ 973 0, /* special_function */ 974 "R_RBAC", /* name */ 975 TRUE, /* partial_inplace */ 976 0xffffffff, /* src_mask */ 977 0xffffffff, /* dst_mask */ 978 FALSE), /* pcrel_offset */ 979 980 /* 0x1a: Modifiable branch relative. */ 981 HOWTO (R_RBR, /* type */ 982 0, /* rightshift */ 983 2, /* size (0 = byte, 1 = short, 2 = long) */ 984 26, /* bitsize */ 985 FALSE, /* pc_relative */ 986 0, /* bitpos */ 987 complain_overflow_signed, /* complain_on_overflow */ 988 0, /* special_function */ 989 "R_RBR_26", /* name */ 990 TRUE, /* partial_inplace */ 991 0x03fffffc, /* src_mask */ 992 0x03fffffc, /* dst_mask */ 993 FALSE), /* pcrel_offset */ 994 995 /* 0x1b: Modifiable branch absolute. */ 996 HOWTO (R_RBRC, /* type */ 997 0, /* rightshift */ 998 1, /* size (0 = byte, 1 = short, 2 = long) */ 999 16, /* bitsize */ 1000 FALSE, /* pc_relative */ 1001 0, /* bitpos */ 1002 complain_overflow_bitfield, /* complain_on_overflow */ 1003 0, /* special_function */ 1004 "R_RBRC", /* name */ 1005 TRUE, /* partial_inplace */ 1006 0xffff, /* src_mask */ 1007 0xffff, /* dst_mask */ 1008 FALSE), /* pcrel_offset */ 1009 1010 /* 0x1c: 16 bit Non modifiable absolute branch. */ 1011 HOWTO (R_BA, /* type */ 1012 0, /* rightshift */ 1013 1, /* size (0 = byte, 1 = short, 2 = long) */ 1014 16, /* bitsize */ 1015 FALSE, /* pc_relative */ 1016 0, /* bitpos */ 1017 complain_overflow_bitfield, /* complain_on_overflow */ 1018 0, /* special_function */ 1019 "R_BA_16", /* name */ 1020 TRUE, /* partial_inplace */ 1021 0xfffc, /* src_mask */ 1022 0xfffc, /* dst_mask */ 1023 FALSE), /* pcrel_offset */ 1024 1025 /* 0x1d: Modifiable branch relative. */ 1026 HOWTO (R_RBR, /* type */ 1027 0, /* rightshift */ 1028 1, /* size (0 = byte, 1 = short, 2 = long) */ 1029 16, /* bitsize */ 1030 TRUE, /* pc_relative */ 1031 0, /* bitpos */ 1032 complain_overflow_signed, /* complain_on_overflow */ 1033 0, /* special_function */ 1034 "R_RBR_16", /* name */ 1035 TRUE, /* partial_inplace */ 1036 0xfffc, /* src_mask */ 1037 0xfffc, /* dst_mask */ 1038 FALSE), /* pcrel_offset */ 1039 1040 /* 0x1e: Modifiable branch relative. */ 1041 HOWTO (R_RBA, /* type */ 1042 0, /* rightshift */ 1043 1, /* size (0 = byte, 1 = short, 2 = long) */ 1044 16, /* bitsize */ 1045 FALSE, /* pc_relative */ 1046 0, /* bitpos */ 1047 complain_overflow_signed, /* complain_on_overflow */ 1048 0, /* special_function */ 1049 "R_RBA_16", /* name */ 1050 TRUE, /* partial_inplace */ 1051 0xffff, /* src_mask */ 1052 0xffff, /* dst_mask */ 1053 FALSE), /* pcrel_offset */ 1054}; 1055 1056void 1057xcoff_rtype2howto (arelent *relent, struct internal_reloc *internal) 1058{ 1059 if (internal->r_type > R_RBRC) 1060 abort (); 1061 1062 /* Default howto layout works most of the time */ 1063 relent->howto = &xcoff_howto_table[internal->r_type]; 1064 1065 /* Special case some 16 bit reloc */ 1066 if (15 == (internal->r_size & 0x1f)) 1067 { 1068 if (R_BA == internal->r_type) 1069 relent->howto = &xcoff_howto_table[0x1c]; 1070 else if (R_RBR == internal->r_type) 1071 relent->howto = &xcoff_howto_table[0x1d]; 1072 else if (R_RBA == internal->r_type) 1073 relent->howto = &xcoff_howto_table[0x1e]; 1074 } 1075 1076 /* The r_size field of an XCOFF reloc encodes the bitsize of the 1077 relocation, as well as indicating whether it is signed or not. 1078 Doublecheck that the relocation information gathered from the 1079 type matches this information. The bitsize is not significant 1080 for R_REF relocs. */ 1081 if (relent->howto->dst_mask != 0 1082 && (relent->howto->bitsize 1083 != ((unsigned int) internal->r_size & 0x1f) + 1)) 1084 abort (); 1085} 1086 1087reloc_howto_type * 1088_bfd_xcoff_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1089 bfd_reloc_code_real_type code) 1090{ 1091 switch (code) 1092 { 1093 case BFD_RELOC_PPC_B26: 1094 return &xcoff_howto_table[0xa]; 1095 case BFD_RELOC_PPC_BA16: 1096 return &xcoff_howto_table[0x1c]; 1097 case BFD_RELOC_PPC_BA26: 1098 return &xcoff_howto_table[8]; 1099 case BFD_RELOC_PPC_TOC16: 1100 return &xcoff_howto_table[3]; 1101 case BFD_RELOC_16: 1102 /* Note that this relocation is only internally used by gas. */ 1103 return &xcoff_howto_table[0xc]; 1104 case BFD_RELOC_PPC_B16: 1105 return &xcoff_howto_table[0x1d]; 1106 case BFD_RELOC_32: 1107 case BFD_RELOC_CTOR: 1108 return &xcoff_howto_table[0]; 1109 case BFD_RELOC_NONE: 1110 return &xcoff_howto_table[0xf]; 1111 default: 1112 return NULL; 1113 } 1114} 1115 1116static reloc_howto_type * 1117_bfd_xcoff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1118 const char *r_name) 1119{ 1120 unsigned int i; 1121 1122 for (i = 0; 1123 i < sizeof (xcoff_howto_table) / sizeof (xcoff_howto_table[0]); 1124 i++) 1125 if (xcoff_howto_table[i].name != NULL 1126 && strcasecmp (xcoff_howto_table[i].name, r_name) == 0) 1127 return &xcoff_howto_table[i]; 1128 1129 return NULL; 1130} 1131 1132/* XCOFF archive support. The original version of this code was by 1133 Damon A. Permezel. It was enhanced to permit cross support, and 1134 writing archive files, by Ian Lance Taylor, Cygnus Support. 1135 1136 XCOFF uses its own archive format. Everything is hooked together 1137 with file offset links, so it is possible to rapidly update an 1138 archive in place. Of course, we don't do that. An XCOFF archive 1139 has a real file header, not just an ARMAG string. The structure of 1140 the file header and of each archive header appear below. 1141 1142 An XCOFF archive also has a member table, which is a list of 1143 elements in the archive (you can get that by looking through the 1144 linked list, but you have to read a lot more of the file). The 1145 member table has a normal archive header with an empty name. It is 1146 normally (and perhaps must be) the second to last entry in the 1147 archive. The member table data is almost printable ASCII. It 1148 starts with a 12 character decimal string which is the number of 1149 entries in the table. For each entry it has a 12 character decimal 1150 string which is the offset in the archive of that member. These 1151 entries are followed by a series of null terminated strings which 1152 are the member names for each entry. 1153 1154 Finally, an XCOFF archive has a global symbol table, which is what 1155 we call the armap. The global symbol table has a normal archive 1156 header with an empty name. It is normally (and perhaps must be) 1157 the last entry in the archive. The contents start with a four byte 1158 binary number which is the number of entries. This is followed by 1159 a that many four byte binary numbers; each is the file offset of an 1160 entry in the archive. These numbers are followed by a series of 1161 null terminated strings, which are symbol names. 1162 1163 AIX 4.3 introduced a new archive format which can handle larger 1164 files and also 32- and 64-bit objects in the same archive. The 1165 things said above remain true except that there is now more than 1166 one global symbol table. The one is used to index 32-bit objects, 1167 the other for 64-bit objects. 1168 1169 The new archives (recognizable by the new ARMAG string) has larger 1170 field lengths so that we cannot really share any code. Also we have 1171 to take care that we are not generating the new form of archives 1172 on AIX 4.2 or earlier systems. */ 1173 1174/* XCOFF archives use this as a magic string. Note that both strings 1175 have the same length. */ 1176 1177/* Set the magic for archive. */ 1178 1179bfd_boolean 1180bfd_xcoff_ar_archive_set_magic (bfd *abfd ATTRIBUTE_UNUSED, 1181 char *magic ATTRIBUTE_UNUSED) 1182{ 1183 /* Not supported yet. */ 1184 return FALSE; 1185 /* bfd_xcoff_archive_set_magic (abfd, magic); */ 1186} 1187 1188/* Read in the armap of an XCOFF archive. */ 1189 1190bfd_boolean 1191_bfd_xcoff_slurp_armap (bfd *abfd) 1192{ 1193 file_ptr off; 1194 size_t namlen; 1195 bfd_size_type sz; 1196 bfd_byte *contents, *cend; 1197 bfd_vma c, i; 1198 carsym *arsym; 1199 bfd_byte *p; 1200 1201 if (xcoff_ardata (abfd) == NULL) 1202 { 1203 bfd_has_map (abfd) = FALSE; 1204 return TRUE; 1205 } 1206 1207 if (! xcoff_big_format_p (abfd)) 1208 { 1209 /* This is for the old format. */ 1210 struct xcoff_ar_hdr hdr; 1211 1212 off = strtol (xcoff_ardata (abfd)->symoff, (char **) NULL, 10); 1213 if (off == 0) 1214 { 1215 bfd_has_map (abfd) = FALSE; 1216 return TRUE; 1217 } 1218 1219 if (bfd_seek (abfd, off, SEEK_SET) != 0) 1220 return FALSE; 1221 1222 /* The symbol table starts with a normal archive header. */ 1223 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd) 1224 != SIZEOF_AR_HDR) 1225 return FALSE; 1226 1227 /* Skip the name (normally empty). */ 1228 namlen = strtol (hdr.namlen, (char **) NULL, 10); 1229 off = ((namlen + 1) & ~ (size_t) 1) + SXCOFFARFMAG; 1230 if (bfd_seek (abfd, off, SEEK_CUR) != 0) 1231 return FALSE; 1232 1233 sz = strtol (hdr.size, (char **) NULL, 10); 1234 1235 /* Read in the entire symbol table. */ 1236 contents = (bfd_byte *) bfd_alloc (abfd, sz); 1237 if (contents == NULL) 1238 return FALSE; 1239 if (bfd_bread (contents, sz, abfd) != sz) 1240 return FALSE; 1241 1242 /* The symbol table starts with a four byte count. */ 1243 c = H_GET_32 (abfd, contents); 1244 1245 if (c * 4 >= sz) 1246 { 1247 bfd_set_error (bfd_error_bad_value); 1248 return FALSE; 1249 } 1250 1251 bfd_ardata (abfd)->symdefs = 1252 ((carsym *) bfd_alloc (abfd, c * sizeof (carsym))); 1253 if (bfd_ardata (abfd)->symdefs == NULL) 1254 return FALSE; 1255 1256 /* After the count comes a list of four byte file offsets. */ 1257 for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 4; 1258 i < c; 1259 ++i, ++arsym, p += 4) 1260 arsym->file_offset = H_GET_32 (abfd, p); 1261 } 1262 else 1263 { 1264 /* This is for the new format. */ 1265 struct xcoff_ar_hdr_big hdr; 1266 1267 off = strtol (xcoff_ardata_big (abfd)->symoff, (char **) NULL, 10); 1268 if (off == 0) 1269 { 1270 bfd_has_map (abfd) = FALSE; 1271 return TRUE; 1272 } 1273 1274 if (bfd_seek (abfd, off, SEEK_SET) != 0) 1275 return FALSE; 1276 1277 /* The symbol table starts with a normal archive header. */ 1278 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR_BIG, abfd) 1279 != SIZEOF_AR_HDR_BIG) 1280 return FALSE; 1281 1282 /* Skip the name (normally empty). */ 1283 namlen = strtol (hdr.namlen, (char **) NULL, 10); 1284 off = ((namlen + 1) & ~ (size_t) 1) + SXCOFFARFMAG; 1285 if (bfd_seek (abfd, off, SEEK_CUR) != 0) 1286 return FALSE; 1287 1288 /* XXX This actually has to be a call to strtoll (at least on 32-bit 1289 machines) since the field width is 20 and there numbers with more 1290 than 32 bits can be represented. */ 1291 sz = strtol (hdr.size, (char **) NULL, 10); 1292 1293 /* Read in the entire symbol table. */ 1294 contents = (bfd_byte *) bfd_alloc (abfd, sz); 1295 if (contents == NULL) 1296 return FALSE; 1297 if (bfd_bread (contents, sz, abfd) != sz) 1298 return FALSE; 1299 1300 /* The symbol table starts with an eight byte count. */ 1301 c = H_GET_64 (abfd, contents); 1302 1303 if (c * 8 >= sz) 1304 { 1305 bfd_set_error (bfd_error_bad_value); 1306 return FALSE; 1307 } 1308 1309 bfd_ardata (abfd)->symdefs = 1310 ((carsym *) bfd_alloc (abfd, c * sizeof (carsym))); 1311 if (bfd_ardata (abfd)->symdefs == NULL) 1312 return FALSE; 1313 1314 /* After the count comes a list of eight byte file offsets. */ 1315 for (i = 0, arsym = bfd_ardata (abfd)->symdefs, p = contents + 8; 1316 i < c; 1317 ++i, ++arsym, p += 8) 1318 arsym->file_offset = H_GET_64 (abfd, p); 1319 } 1320 1321 /* After the file offsets come null terminated symbol names. */ 1322 cend = contents + sz; 1323 for (i = 0, arsym = bfd_ardata (abfd)->symdefs; 1324 i < c; 1325 ++i, ++arsym, p += strlen ((char *) p) + 1) 1326 { 1327 if (p >= cend) 1328 { 1329 bfd_set_error (bfd_error_bad_value); 1330 return FALSE; 1331 } 1332 arsym->name = (char *) p; 1333 } 1334 1335 bfd_ardata (abfd)->symdef_count = c; 1336 bfd_has_map (abfd) = TRUE; 1337 1338 return TRUE; 1339} 1340 1341/* See if this is an XCOFF archive. */ 1342 1343const bfd_target * 1344_bfd_xcoff_archive_p (bfd *abfd) 1345{ 1346 struct artdata *tdata_hold; 1347 char magic[SXCOFFARMAG]; 1348 bfd_size_type amt = SXCOFFARMAG; 1349 1350 if (bfd_bread (magic, amt, abfd) != amt) 1351 { 1352 if (bfd_get_error () != bfd_error_system_call) 1353 bfd_set_error (bfd_error_wrong_format); 1354 return NULL; 1355 } 1356 1357 if (strncmp (magic, XCOFFARMAG, SXCOFFARMAG) != 0 1358 && strncmp (magic, XCOFFARMAGBIG, SXCOFFARMAG) != 0) 1359 { 1360 bfd_set_error (bfd_error_wrong_format); 1361 return NULL; 1362 } 1363 1364 tdata_hold = bfd_ardata (abfd); 1365 1366 amt = sizeof (struct artdata); 1367 bfd_ardata (abfd) = (struct artdata *) bfd_zalloc (abfd, amt); 1368 if (bfd_ardata (abfd) == (struct artdata *) NULL) 1369 goto error_ret_restore; 1370 1371 /* Cleared by bfd_zalloc above. 1372 bfd_ardata (abfd)->cache = NULL; 1373 bfd_ardata (abfd)->archive_head = NULL; 1374 bfd_ardata (abfd)->symdefs = NULL; 1375 bfd_ardata (abfd)->extended_names = NULL; 1376 bfd_ardata (abfd)->extended_names_size = 0; */ 1377 1378 /* Now handle the two formats. */ 1379 if (magic[1] != 'b') 1380 { 1381 /* This is the old format. */ 1382 struct xcoff_ar_file_hdr hdr; 1383 1384 /* Copy over the magic string. */ 1385 memcpy (hdr.magic, magic, SXCOFFARMAG); 1386 1387 /* Now read the rest of the file header. */ 1388 amt = SIZEOF_AR_FILE_HDR - SXCOFFARMAG; 1389 if (bfd_bread (&hdr.memoff, amt, abfd) != amt) 1390 { 1391 if (bfd_get_error () != bfd_error_system_call) 1392 bfd_set_error (bfd_error_wrong_format); 1393 goto error_ret; 1394 } 1395 1396 bfd_ardata (abfd)->first_file_filepos = strtol (hdr.firstmemoff, 1397 (char **) NULL, 10); 1398 1399 amt = SIZEOF_AR_FILE_HDR; 1400 bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt); 1401 if (bfd_ardata (abfd)->tdata == NULL) 1402 goto error_ret; 1403 1404 memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR); 1405 } 1406 else 1407 { 1408 /* This is the new format. */ 1409 struct xcoff_ar_file_hdr_big hdr; 1410 1411 /* Copy over the magic string. */ 1412 memcpy (hdr.magic, magic, SXCOFFARMAG); 1413 1414 /* Now read the rest of the file header. */ 1415 amt = SIZEOF_AR_FILE_HDR_BIG - SXCOFFARMAG; 1416 if (bfd_bread (&hdr.memoff, amt, abfd) != amt) 1417 { 1418 if (bfd_get_error () != bfd_error_system_call) 1419 bfd_set_error (bfd_error_wrong_format); 1420 goto error_ret; 1421 } 1422 1423 bfd_ardata (abfd)->first_file_filepos = bfd_scan_vma (hdr.firstmemoff, 1424 (const char **) 0, 1425 10); 1426 1427 amt = SIZEOF_AR_FILE_HDR_BIG; 1428 bfd_ardata (abfd)->tdata = bfd_zalloc (abfd, amt); 1429 if (bfd_ardata (abfd)->tdata == NULL) 1430 goto error_ret; 1431 1432 memcpy (bfd_ardata (abfd)->tdata, &hdr, SIZEOF_AR_FILE_HDR_BIG); 1433 } 1434 1435 if (! _bfd_xcoff_slurp_armap (abfd)) 1436 { 1437 error_ret: 1438 bfd_release (abfd, bfd_ardata (abfd)); 1439 error_ret_restore: 1440 bfd_ardata (abfd) = tdata_hold; 1441 return NULL; 1442 } 1443 1444 return abfd->xvec; 1445} 1446 1447/* Read the archive header in an XCOFF archive. */ 1448 1449void * 1450_bfd_xcoff_read_ar_hdr (bfd *abfd) 1451{ 1452 bfd_size_type namlen; 1453 struct areltdata *ret; 1454 bfd_size_type amt = sizeof (struct areltdata); 1455 1456 ret = (struct areltdata *) bfd_zmalloc (amt); 1457 if (ret == NULL) 1458 return NULL; 1459 1460 if (! xcoff_big_format_p (abfd)) 1461 { 1462 struct xcoff_ar_hdr hdr; 1463 struct xcoff_ar_hdr *hdrp; 1464 1465 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd) 1466 != SIZEOF_AR_HDR) 1467 { 1468 free (ret); 1469 return NULL; 1470 } 1471 1472 namlen = strtol (hdr.namlen, (char **) NULL, 10); 1473 amt = SIZEOF_AR_HDR + namlen + 1; 1474 hdrp = (struct xcoff_ar_hdr *) bfd_alloc (abfd, amt); 1475 if (hdrp == NULL) 1476 { 1477 free (ret); 1478 return NULL; 1479 } 1480 memcpy (hdrp, &hdr, SIZEOF_AR_HDR); 1481 if (bfd_bread ((char *) hdrp + SIZEOF_AR_HDR, namlen, abfd) != namlen) 1482 { 1483 free (ret); 1484 return NULL; 1485 } 1486 ((char *) hdrp)[SIZEOF_AR_HDR + namlen] = '\0'; 1487 1488 ret->arch_header = (char *) hdrp; 1489 ret->parsed_size = strtol (hdr.size, (char **) NULL, 10); 1490 ret->filename = (char *) hdrp + SIZEOF_AR_HDR; 1491 } 1492 else 1493 { 1494 struct xcoff_ar_hdr_big hdr; 1495 struct xcoff_ar_hdr_big *hdrp; 1496 1497 if (bfd_bread (&hdr, (bfd_size_type) SIZEOF_AR_HDR_BIG, abfd) 1498 != SIZEOF_AR_HDR_BIG) 1499 { 1500 free (ret); 1501 return NULL; 1502 } 1503 1504 namlen = strtol (hdr.namlen, (char **) NULL, 10); 1505 amt = SIZEOF_AR_HDR_BIG + namlen + 1; 1506 hdrp = (struct xcoff_ar_hdr_big *) bfd_alloc (abfd, amt); 1507 if (hdrp == NULL) 1508 { 1509 free (ret); 1510 return NULL; 1511 } 1512 memcpy (hdrp, &hdr, SIZEOF_AR_HDR_BIG); 1513 if (bfd_bread ((char *) hdrp + SIZEOF_AR_HDR_BIG, namlen, abfd) != namlen) 1514 { 1515 free (ret); 1516 return NULL; 1517 } 1518 ((char *) hdrp)[SIZEOF_AR_HDR_BIG + namlen] = '\0'; 1519 1520 ret->arch_header = (char *) hdrp; 1521 /* XXX This actually has to be a call to strtoll (at least on 32-bit 1522 machines) since the field width is 20 and there numbers with more 1523 than 32 bits can be represented. */ 1524 ret->parsed_size = strtol (hdr.size, (char **) NULL, 10); 1525 ret->filename = (char *) hdrp + SIZEOF_AR_HDR_BIG; 1526 } 1527 1528 /* Skip over the XCOFFARFMAG at the end of the file name. */ 1529 if (bfd_seek (abfd, (file_ptr) ((namlen & 1) + SXCOFFARFMAG), SEEK_CUR) != 0) 1530 return NULL; 1531 1532 return ret; 1533} 1534 1535/* Open the next element in an XCOFF archive. */ 1536 1537bfd * 1538_bfd_xcoff_openr_next_archived_file (bfd *archive, bfd *last_file) 1539{ 1540 file_ptr filestart; 1541 1542 if (xcoff_ardata (archive) == NULL) 1543 { 1544 bfd_set_error (bfd_error_invalid_operation); 1545 return NULL; 1546 } 1547 1548 if (! xcoff_big_format_p (archive)) 1549 { 1550 if (last_file == NULL) 1551 filestart = bfd_ardata (archive)->first_file_filepos; 1552 else 1553 filestart = strtol (arch_xhdr (last_file)->nextoff, (char **) NULL, 1554 10); 1555 1556 if (filestart == 0 1557 || filestart == strtol (xcoff_ardata (archive)->memoff, 1558 (char **) NULL, 10) 1559 || filestart == strtol (xcoff_ardata (archive)->symoff, 1560 (char **) NULL, 10)) 1561 { 1562 bfd_set_error (bfd_error_no_more_archived_files); 1563 return NULL; 1564 } 1565 } 1566 else 1567 { 1568 if (last_file == NULL) 1569 filestart = bfd_ardata (archive)->first_file_filepos; 1570 else 1571 /* XXX These actually have to be a calls to strtoll (at least 1572 on 32-bit machines) since the fields's width is 20 and 1573 there numbers with more than 32 bits can be represented. */ 1574 filestart = strtol (arch_xhdr_big (last_file)->nextoff, (char **) NULL, 1575 10); 1576 1577 /* XXX These actually have to be calls to strtoll (at least on 32-bit 1578 machines) since the fields's width is 20 and there numbers with more 1579 than 32 bits can be represented. */ 1580 if (filestart == 0 1581 || filestart == strtol (xcoff_ardata_big (archive)->memoff, 1582 (char **) NULL, 10) 1583 || filestart == strtol (xcoff_ardata_big (archive)->symoff, 1584 (char **) NULL, 10)) 1585 { 1586 bfd_set_error (bfd_error_no_more_archived_files); 1587 return NULL; 1588 } 1589 } 1590 1591 return _bfd_get_elt_at_filepos (archive, filestart); 1592} 1593 1594/* Stat an element in an XCOFF archive. */ 1595 1596int 1597_bfd_xcoff_stat_arch_elt (bfd *abfd, struct stat *s) 1598{ 1599 if (abfd->arelt_data == NULL) 1600 { 1601 bfd_set_error (bfd_error_invalid_operation); 1602 return -1; 1603 } 1604 1605 if (! xcoff_big_format_p (abfd->my_archive)) 1606 { 1607 struct xcoff_ar_hdr *hdrp = arch_xhdr (abfd); 1608 1609 s->st_mtime = strtol (hdrp->date, (char **) NULL, 10); 1610 s->st_uid = strtol (hdrp->uid, (char **) NULL, 10); 1611 s->st_gid = strtol (hdrp->gid, (char **) NULL, 10); 1612 s->st_mode = strtol (hdrp->mode, (char **) NULL, 8); 1613 s->st_size = arch_eltdata (abfd)->parsed_size; 1614 } 1615 else 1616 { 1617 struct xcoff_ar_hdr_big *hdrp = arch_xhdr_big (abfd); 1618 1619 s->st_mtime = strtol (hdrp->date, (char **) NULL, 10); 1620 s->st_uid = strtol (hdrp->uid, (char **) NULL, 10); 1621 s->st_gid = strtol (hdrp->gid, (char **) NULL, 10); 1622 s->st_mode = strtol (hdrp->mode, (char **) NULL, 8); 1623 s->st_size = arch_eltdata (abfd)->parsed_size; 1624 } 1625 1626 return 0; 1627} 1628 1629/* Normalize a file name for inclusion in an archive. */ 1630 1631static const char * 1632normalize_filename (bfd *abfd) 1633{ 1634 const char *file; 1635 const char *filename; 1636 1637 file = bfd_get_filename (abfd); 1638 filename = strrchr (file, '/'); 1639 if (filename != NULL) 1640 filename++; 1641 else 1642 filename = file; 1643 return filename; 1644} 1645 1646/* Write out an XCOFF armap. */ 1647 1648static bfd_boolean 1649xcoff_write_armap_old (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED, 1650 struct orl *map, unsigned int orl_count, int stridx) 1651{ 1652 struct archive_iterator iterator; 1653 struct xcoff_ar_hdr hdr; 1654 char *p; 1655 unsigned char buf[4]; 1656 unsigned int i; 1657 1658 memset (&hdr, 0, sizeof hdr); 1659 sprintf (hdr.size, "%ld", (long) (4 + orl_count * 4 + stridx)); 1660 sprintf (hdr.nextoff, "%d", 0); 1661 memcpy (hdr.prevoff, xcoff_ardata (abfd)->memoff, XCOFFARMAG_ELEMENT_SIZE); 1662 sprintf (hdr.date, "%d", 0); 1663 sprintf (hdr.uid, "%d", 0); 1664 sprintf (hdr.gid, "%d", 0); 1665 sprintf (hdr.mode, "%d", 0); 1666 sprintf (hdr.namlen, "%d", 0); 1667 1668 /* We need spaces, not null bytes, in the header. */ 1669 for (p = (char *) &hdr; p < (char *) &hdr + SIZEOF_AR_HDR; p++) 1670 if (*p == '\0') 1671 *p = ' '; 1672 1673 if (bfd_bwrite (&hdr, (bfd_size_type) SIZEOF_AR_HDR, abfd) 1674 != SIZEOF_AR_HDR 1675 || (bfd_bwrite (XCOFFARFMAG, (bfd_size_type) SXCOFFARFMAG, abfd) 1676 != SXCOFFARFMAG)) 1677 return FALSE; 1678 1679 H_PUT_32 (abfd, orl_count, buf); 1680 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4) 1681 return FALSE; 1682 1683 i = 0; 1684 archive_iterator_begin (&iterator, abfd); 1685 while (i < orl_count && archive_iterator_next (&iterator)) 1686 while (map[i].u.abfd == iterator.current.member) 1687 { 1688 H_PUT_32 (abfd, iterator.current.offset, buf); 1689 if (bfd_bwrite (buf, (bfd_size_type) 4, abfd) != 4) 1690 return FALSE; 1691 ++i; 1692 } 1693 1694 for (i = 0; i < orl_count; i++) 1695 { 1696 const char *name; 1697 size_t namlen; 1698 1699 name = *map[i].name; 1700 namlen = strlen (name); 1701 if (bfd_bwrite (name, (bfd_size_type) (namlen + 1), abfd) != namlen + 1) 1702 return FALSE; 1703 } 1704 1705 if ((stridx & 1) != 0) 1706 { 1707 char b; 1708 1709 b = '\0'; 1710 if (bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) 1711 return FALSE; 1712 } 1713 1714 return TRUE; 1715} 1716 1717static char buff20[XCOFFARMAGBIG_ELEMENT_SIZE + 1]; 1718#define FMT20 "%-20lld" 1719#define FMT12 "%-12d" 1720#define FMT12_OCTAL "%-12o" 1721#define FMT4 "%-4d" 1722#define PRINT20(d, v) \ 1723 sprintf (buff20, FMT20, (long long)(v)), \ 1724 memcpy ((void *) (d), buff20, 20) 1725 1726#define PRINT12(d, v) \ 1727 sprintf (buff20, FMT12, (int)(v)), \ 1728 memcpy ((void *) (d), buff20, 12) 1729 1730#define PRINT12_OCTAL(d, v) \ 1731 sprintf (buff20, FMT12_OCTAL, (unsigned int)(v)), \ 1732 memcpy ((void *) (d), buff20, 12) 1733 1734#define PRINT4(d, v) \ 1735 sprintf (buff20, FMT4, (int)(v)), \ 1736 memcpy ((void *) (d), buff20, 4) 1737 1738#define READ20(d, v) \ 1739 buff20[20] = 0, \ 1740 memcpy (buff20, (d), 20), \ 1741 (v) = bfd_scan_vma (buff20, (const char **) NULL, 10) 1742 1743static bfd_boolean 1744do_pad (bfd *abfd, unsigned int number) 1745{ 1746 bfd_byte b = 0; 1747 1748 /* Limit pad to <= 4096. */ 1749 if (number > 4096) 1750 return FALSE; 1751 1752 while (number--) 1753 if (bfd_bwrite (&b, (bfd_size_type) 1, abfd) != 1) 1754 return FALSE; 1755 1756 return TRUE; 1757} 1758 1759static bfd_boolean 1760do_copy (bfd *out_bfd, bfd *in_bfd) 1761{ 1762 bfd_size_type remaining; 1763 bfd_byte buffer[DEFAULT_BUFFERSIZE]; 1764 1765 if (bfd_seek (in_bfd, (file_ptr) 0, SEEK_SET) != 0) 1766 return FALSE; 1767 1768 remaining = arelt_size (in_bfd); 1769 1770 while (remaining >= DEFAULT_BUFFERSIZE) 1771 { 1772 if (bfd_bread (buffer, DEFAULT_BUFFERSIZE, in_bfd) != DEFAULT_BUFFERSIZE 1773 || bfd_bwrite (buffer, DEFAULT_BUFFERSIZE, out_bfd) != DEFAULT_BUFFERSIZE) 1774 return FALSE; 1775 1776 remaining -= DEFAULT_BUFFERSIZE; 1777 } 1778 1779 if (remaining) 1780 { 1781 if (bfd_bread (buffer, remaining, in_bfd) != remaining 1782 || bfd_bwrite (buffer, remaining, out_bfd) != remaining) 1783 return FALSE; 1784 } 1785 1786 return TRUE; 1787} 1788 1789static bfd_boolean 1790xcoff_write_armap_big (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED, 1791 struct orl *map, unsigned int orl_count, int stridx) 1792{ 1793 struct archive_iterator iterator; 1794 struct xcoff_ar_file_hdr_big *fhdr; 1795 bfd_vma i, sym_32, sym_64, str_32, str_64; 1796 const bfd_arch_info_type *arch_info; 1797 bfd *current_bfd; 1798 size_t string_length; 1799 file_ptr nextoff, prevoff; 1800 1801 /* First, we look through the symbols and work out which are 1802 from 32-bit objects and which from 64-bit ones. */ 1803 sym_32 = sym_64 = str_32 = str_64 = 0; 1804 1805 i = 0; 1806 for (current_bfd = abfd->archive_head; 1807 current_bfd != NULL && i < orl_count; 1808 current_bfd = current_bfd->archive_next) 1809 { 1810 arch_info = bfd_get_arch_info (current_bfd); 1811 while (map[i].u.abfd == current_bfd) 1812 { 1813 string_length = strlen (*map[i].name) + 1; 1814 if (arch_info->bits_per_address == 64) 1815 { 1816 sym_64++; 1817 str_64 += string_length; 1818 } 1819 else 1820 { 1821 sym_32++; 1822 str_32 += string_length; 1823 } 1824 i++; 1825 } 1826 } 1827 1828 /* A quick sanity check... */ 1829 BFD_ASSERT (sym_64 + sym_32 == orl_count); 1830 /* Explicit cast to int for compiler. */ 1831 BFD_ASSERT ((int)(str_64 + str_32) == stridx); 1832 1833 fhdr = xcoff_ardata_big (abfd); 1834 1835 /* xcoff_write_archive_contents_big passes nextoff in symoff. */ 1836 READ20 (fhdr->memoff, prevoff); 1837 READ20 (fhdr->symoff, nextoff); 1838 1839 BFD_ASSERT (nextoff == bfd_tell (abfd)); 1840 1841 /* Write out the symbol table. 1842 Layout : 1843 1844 standard big archive header 1845 0x0000 ar_size [0x14] 1846 0x0014 ar_nxtmem [0x14] 1847 0x0028 ar_prvmem [0x14] 1848 0x003C ar_date [0x0C] 1849 0x0048 ar_uid [0x0C] 1850 0x0054 ar_gid [0x0C] 1851 0x0060 ar_mod [0x0C] 1852 0x006C ar_namelen[0x04] 1853 0x0070 ar_fmag [SXCOFFARFMAG] 1854 1855 Symbol table 1856 0x0072 num_syms [0x08], binary 1857 0x0078 offsets [0x08 * num_syms], binary 1858 0x0086 + 0x08 * num_syms names [??] 1859 ?? pad to even bytes. 1860 */ 1861 1862 if (sym_32) 1863 { 1864 struct xcoff_ar_hdr_big *hdr; 1865 char *symbol_table; 1866 char *st; 1867 1868 bfd_vma symbol_table_size = 1869 SIZEOF_AR_HDR_BIG 1870 + SXCOFFARFMAG 1871 + 8 1872 + 8 * sym_32 1873 + str_32 + (str_32 & 1); 1874 1875 symbol_table = bfd_zmalloc (symbol_table_size); 1876 if (symbol_table == NULL) 1877 return FALSE; 1878 1879 hdr = (struct xcoff_ar_hdr_big *) symbol_table; 1880 1881 PRINT20 (hdr->size, 8 + 8 * sym_32 + str_32 + (str_32 & 1)); 1882 1883 if (sym_64) 1884 PRINT20 (hdr->nextoff, nextoff + symbol_table_size); 1885 else 1886 PRINT20 (hdr->nextoff, 0); 1887 1888 PRINT20 (hdr->prevoff, prevoff); 1889 PRINT12 (hdr->date, 0); 1890 PRINT12 (hdr->uid, 0); 1891 PRINT12 (hdr->gid, 0); 1892 PRINT12 (hdr->mode, 0); 1893 PRINT4 (hdr->namlen, 0) ; 1894 1895 st = symbol_table + SIZEOF_AR_HDR_BIG; 1896 memcpy (st, XCOFFARFMAG, SXCOFFARFMAG); 1897 st += SXCOFFARFMAG; 1898 1899 bfd_h_put_64 (abfd, sym_32, st); 1900 st += 8; 1901 1902 /* loop over the 32 bit offsets */ 1903 i = 0; 1904 archive_iterator_begin (&iterator, abfd); 1905 while (i < orl_count && archive_iterator_next (&iterator)) 1906 { 1907 arch_info = bfd_get_arch_info (iterator.current.member); 1908 while (map[i].u.abfd == iterator.current.member) 1909 { 1910 if (arch_info->bits_per_address == 32) 1911 { 1912 bfd_h_put_64 (abfd, iterator.current.offset, st); 1913 st += 8; 1914 } 1915 i++; 1916 } 1917 } 1918 1919 /* loop over the 32 bit symbol names */ 1920 i = 0; 1921 for (current_bfd = abfd->archive_head; 1922 current_bfd != NULL && i < orl_count; 1923 current_bfd = current_bfd->archive_next) 1924 { 1925 arch_info = bfd_get_arch_info (current_bfd); 1926 while (map[i].u.abfd == current_bfd) 1927 { 1928 if (arch_info->bits_per_address == 32) 1929 { 1930 string_length = sprintf (st, "%s", *map[i].name); 1931 st += string_length + 1; 1932 } 1933 i++; 1934 } 1935 } 1936 1937 bfd_bwrite (symbol_table, symbol_table_size, abfd); 1938 1939 free (symbol_table); 1940 1941 prevoff = nextoff; 1942 nextoff = nextoff + symbol_table_size; 1943 } 1944 else 1945 PRINT20 (fhdr->symoff, 0); 1946 1947 if (sym_64) 1948 { 1949 struct xcoff_ar_hdr_big *hdr; 1950 char *symbol_table; 1951 char *st; 1952 1953 bfd_vma symbol_table_size = 1954 SIZEOF_AR_HDR_BIG 1955 + SXCOFFARFMAG 1956 + 8 1957 + 8 * sym_64 1958 + str_64 + (str_64 & 1); 1959 1960 symbol_table = bfd_zmalloc (symbol_table_size); 1961 if (symbol_table == NULL) 1962 return FALSE; 1963 1964 hdr = (struct xcoff_ar_hdr_big *) symbol_table; 1965 1966 PRINT20 (hdr->size, 8 + 8 * sym_64 + str_64 + (str_64 & 1)); 1967 PRINT20 (hdr->nextoff, 0); 1968 PRINT20 (hdr->prevoff, prevoff); 1969 PRINT12 (hdr->date, 0); 1970 PRINT12 (hdr->uid, 0); 1971 PRINT12 (hdr->gid, 0); 1972 PRINT12 (hdr->mode, 0); 1973 PRINT4 (hdr->namlen, 0); 1974 1975 st = symbol_table + SIZEOF_AR_HDR_BIG; 1976 memcpy (st, XCOFFARFMAG, SXCOFFARFMAG); 1977 st += SXCOFFARFMAG; 1978 1979 bfd_h_put_64 (abfd, sym_64, st); 1980 st += 8; 1981 1982 /* loop over the 64 bit offsets */ 1983 i = 0; 1984 archive_iterator_begin (&iterator, abfd); 1985 while (i < orl_count && archive_iterator_next (&iterator)) 1986 { 1987 arch_info = bfd_get_arch_info (iterator.current.member); 1988 while (map[i].u.abfd == iterator.current.member) 1989 { 1990 if (arch_info->bits_per_address == 64) 1991 { 1992 bfd_h_put_64 (abfd, iterator.current.offset, st); 1993 st += 8; 1994 } 1995 i++; 1996 } 1997 } 1998 1999 /* loop over the 64 bit symbol names */ 2000 i = 0; 2001 for (current_bfd = abfd->archive_head; 2002 current_bfd != NULL && i < orl_count; 2003 current_bfd = current_bfd->archive_next) 2004 { 2005 arch_info = bfd_get_arch_info (current_bfd); 2006 while (map[i].u.abfd == current_bfd) 2007 { 2008 if (arch_info->bits_per_address == 64) 2009 { 2010 string_length = sprintf (st, "%s", *map[i].name); 2011 st += string_length + 1; 2012 } 2013 i++; 2014 } 2015 } 2016 2017 bfd_bwrite (symbol_table, symbol_table_size, abfd); 2018 2019 free (symbol_table); 2020 2021 PRINT20 (fhdr->symoff64, nextoff); 2022 } 2023 else 2024 PRINT20 (fhdr->symoff64, 0); 2025 2026 return TRUE; 2027} 2028 2029bfd_boolean 2030_bfd_xcoff_write_armap (bfd *abfd, unsigned int elength ATTRIBUTE_UNUSED, 2031 struct orl *map, unsigned int orl_count, int stridx) 2032{ 2033 if (! xcoff_big_format_p (abfd)) 2034 return xcoff_write_armap_old (abfd, elength, map, orl_count, stridx); 2035 else 2036 return xcoff_write_armap_big (abfd, elength, map, orl_count, stridx); 2037} 2038 2039/* Write out an XCOFF archive. We always write an entire archive, 2040 rather than fussing with the freelist and so forth. */ 2041 2042static bfd_boolean 2043xcoff_write_archive_contents_old (bfd *abfd) 2044{ 2045 struct archive_iterator iterator; 2046 struct xcoff_ar_file_hdr fhdr; 2047 bfd_size_type count; 2048 bfd_size_type total_namlen; 2049 file_ptr *offsets; 2050 bfd_boolean makemap; 2051 bfd_boolean hasobjects; 2052 file_ptr prevoff, nextoff; 2053 bfd *sub; 2054 size_t i; 2055 struct xcoff_ar_hdr ahdr; 2056 bfd_size_type size; 2057 char *p; 2058 char decbuf[XCOFFARMAG_ELEMENT_SIZE + 1]; 2059 2060 memset (&fhdr, 0, sizeof fhdr); 2061 (void) strncpy (fhdr.magic, XCOFFARMAG, SXCOFFARMAG); 2062 sprintf (fhdr.firstmemoff, "%d", SIZEOF_AR_FILE_HDR); 2063 sprintf (fhdr.freeoff, "%d", 0); 2064 2065 count = 0; 2066 total_namlen = 0; 2067 for (sub = abfd->archive_head; sub != NULL; sub = sub->archive_next) 2068 { 2069 ++count; 2070 total_namlen += strlen (normalize_filename (sub)) + 1; 2071 if (sub->arelt_data == NULL) 2072 { 2073 sub->arelt_data = bfd_zmalloc (sizeof (struct areltdata)); 2074 if (sub->arelt_data == NULL) 2075 return FALSE; 2076 } 2077 if (arch_xhdr (sub) == NULL) 2078 { 2079 struct xcoff_ar_hdr *ahdrp; 2080 struct stat s; 2081 2082 if (stat (bfd_get_filename (sub), &s) != 0) 2083 { 2084 bfd_set_error (bfd_error_system_call); 2085 return FALSE; 2086 } 2087 2088 ahdrp = bfd_zalloc (sub, sizeof (*ahdrp)); 2089 if (ahdrp == NULL) 2090 return FALSE; 2091 2092 sprintf (ahdrp->size, "%ld", (long) s.st_size); 2093 sprintf (ahdrp->date, "%ld", (long) s.st_mtime); 2094 sprintf (ahdrp->uid, "%ld", (long) s.st_uid); 2095 sprintf (ahdrp->gid, "%ld", (long) s.st_gid); 2096 sprintf (ahdrp->mode, "%o", (unsigned int) s.st_mode); 2097 2098 arch_eltdata (sub)->arch_header = (char *) ahdrp; 2099 arch_eltdata (sub)->parsed_size = s.st_size; 2100 } 2101 } 2102 offsets = (file_ptr *) bfd_alloc (abfd, count * sizeof (file_ptr)); 2103 if (offsets == NULL) 2104 return FALSE; 2105 2106 if (bfd_seek (abfd, (file_ptr) SIZEOF_AR_FILE_HDR, SEEK_SET) != 0) 2107 return FALSE; 2108 2109 makemap = bfd_has_map (abfd); 2110 hasobjects = FALSE; 2111 prevoff = 0; 2112 for (archive_iterator_begin (&iterator, abfd), i = 0; 2113 archive_iterator_next (&iterator); 2114 i++) 2115 { 2116 bfd_size_type namlen; 2117 struct xcoff_ar_hdr *ahdrp; 2118 2119 if (makemap && ! hasobjects) 2120 { 2121 if (bfd_check_format (iterator.current.member, bfd_object)) 2122 hasobjects = TRUE; 2123 } 2124 2125 ahdrp = arch_xhdr (iterator.current.member); 2126 sprintf (ahdrp->prevoff, "%ld", (long) prevoff); 2127 sprintf (ahdrp->namlen, "%ld", (long) iterator.current.namlen); 2128 sprintf (ahdrp->nextoff, "%ld", (long) iterator.next.offset); 2129 2130 /* We need spaces, not null bytes, in the header. */ 2131 for (p = (char *) ahdrp; p < (char *) ahdrp + SIZEOF_AR_HDR; p++) 2132 if (*p == '\0') 2133 *p = ' '; 2134 2135 if (!do_pad (abfd, iterator.current.leading_padding)) 2136 return FALSE; 2137 2138 BFD_ASSERT (iterator.current.offset == bfd_tell (abfd)); 2139 namlen = iterator.current.padded_namlen; 2140 if (bfd_bwrite (ahdrp, SIZEOF_AR_HDR, abfd) != SIZEOF_AR_HDR 2141 || bfd_bwrite (iterator.current.name, namlen, abfd) != namlen 2142 || bfd_bwrite (XCOFFARFMAG, SXCOFFARFMAG, abfd) != SXCOFFARFMAG 2143 || bfd_seek (iterator.current.member, 0, SEEK_SET) != 0 2144 || !do_copy (abfd, iterator.current.member) 2145 || !do_pad (abfd, iterator.current.trailing_padding)) 2146 return FALSE; 2147 2148 offsets[i] = iterator.current.offset; 2149 prevoff = iterator.current.offset; 2150 } 2151 2152 sprintf (fhdr.lastmemoff, "%ld", (long) prevoff); 2153 2154 /* Write out the member table. */ 2155 2156 nextoff = iterator.next.offset; 2157 BFD_ASSERT (nextoff == bfd_tell (abfd)); 2158 sprintf (fhdr.memoff, "%ld", (long) nextoff); 2159 2160 memset (&ahdr, 0, sizeof ahdr); 2161 sprintf (ahdr.size, "%ld", (long) (XCOFFARMAG_ELEMENT_SIZE 2162 + count * XCOFFARMAG_ELEMENT_SIZE 2163 + total_namlen)); 2164 sprintf (ahdr.prevoff, "%ld", (long) prevoff); 2165 sprintf (ahdr.date, "%d", 0); 2166 sprintf (ahdr.uid, "%d", 0); 2167 sprintf (ahdr.gid, "%d", 0); 2168 sprintf (ahdr.mode, "%d", 0); 2169 sprintf (ahdr.namlen, "%d", 0); 2170 2171 size = (SIZEOF_AR_HDR 2172 + XCOFFARMAG_ELEMENT_SIZE 2173 + count * XCOFFARMAG_ELEMENT_SIZE 2174 + total_namlen 2175 + SXCOFFARFMAG); 2176 2177 prevoff = nextoff; 2178 nextoff += size + (size & 1); 2179 2180 if (makemap && hasobjects) 2181 sprintf (ahdr.nextoff, "%ld", (long) nextoff); 2182 else 2183 sprintf (ahdr.nextoff, "%d", 0); 2184 2185 /* We need spaces, not null bytes, in the header. */ 2186 for (p = (char *) &ahdr; p < (char *) &ahdr + SIZEOF_AR_HDR; p++) 2187 if (*p == '\0') 2188 *p = ' '; 2189 2190 if ((bfd_bwrite (&ahdr, (bfd_size_type) SIZEOF_AR_HDR, abfd) 2191 != SIZEOF_AR_HDR) 2192 || (bfd_bwrite (XCOFFARFMAG, (bfd_size_type) SXCOFFARFMAG, abfd) 2193 != SXCOFFARFMAG)) 2194 return FALSE; 2195 2196 sprintf (decbuf, "%-12ld", (long) count); 2197 if (bfd_bwrite (decbuf, (bfd_size_type) XCOFFARMAG_ELEMENT_SIZE, abfd) 2198 != XCOFFARMAG_ELEMENT_SIZE) 2199 return FALSE; 2200 for (i = 0; i < (size_t) count; i++) 2201 { 2202 sprintf (decbuf, "%-12ld", (long) offsets[i]); 2203 if (bfd_bwrite (decbuf, (bfd_size_type) XCOFFARMAG_ELEMENT_SIZE, 2204 abfd) != XCOFFARMAG_ELEMENT_SIZE) 2205 return FALSE; 2206 } 2207 for (sub = abfd->archive_head; sub != NULL; sub = sub->archive_next) 2208 { 2209 const char *name; 2210 bfd_size_type namlen; 2211 2212 name = normalize_filename (sub); 2213 namlen = strlen (name); 2214 if (bfd_bwrite (name, namlen + 1, abfd) != namlen + 1) 2215 return FALSE; 2216 } 2217 2218 if (! do_pad (abfd, size & 1)) 2219 return FALSE; 2220 2221 /* Write out the armap, if appropriate. */ 2222 if (! makemap || ! hasobjects) 2223 sprintf (fhdr.symoff, "%d", 0); 2224 else 2225 { 2226 BFD_ASSERT (nextoff == bfd_tell (abfd)); 2227 sprintf (fhdr.symoff, "%ld", (long) nextoff); 2228 bfd_ardata (abfd)->tdata = &fhdr; 2229 if (! _bfd_compute_and_write_armap (abfd, 0)) 2230 return FALSE; 2231 } 2232 2233 /* Write out the archive file header. */ 2234 2235 /* We need spaces, not null bytes, in the header. */ 2236 for (p = (char *) &fhdr; p < (char *) &fhdr + SIZEOF_AR_FILE_HDR; p++) 2237 if (*p == '\0') 2238 *p = ' '; 2239 2240 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 2241 || (bfd_bwrite (&fhdr, (bfd_size_type) SIZEOF_AR_FILE_HDR, abfd) 2242 != SIZEOF_AR_FILE_HDR)) 2243 return FALSE; 2244 2245 return TRUE; 2246} 2247 2248static bfd_boolean 2249xcoff_write_archive_contents_big (bfd *abfd) 2250{ 2251 struct xcoff_ar_file_hdr_big fhdr; 2252 bfd_size_type count; 2253 bfd_size_type total_namlen; 2254 file_ptr *offsets; 2255 bfd_boolean makemap; 2256 bfd_boolean hasobjects; 2257 file_ptr prevoff, nextoff; 2258 bfd *current_bfd; 2259 size_t i; 2260 struct xcoff_ar_hdr_big *hdr; 2261 bfd_size_type size; 2262 char *member_table, *mt; 2263 bfd_vma member_table_size; 2264 struct archive_iterator iterator; 2265 2266 memset (&fhdr, 0, SIZEOF_AR_FILE_HDR_BIG); 2267 memcpy (fhdr.magic, XCOFFARMAGBIG, SXCOFFARMAG); 2268 2269 if (bfd_seek (abfd, (file_ptr) SIZEOF_AR_FILE_HDR_BIG, SEEK_SET) != 0) 2270 return FALSE; 2271 2272 /* Calculate count and total_namlen. */ 2273 makemap = bfd_has_map (abfd); 2274 hasobjects = FALSE; 2275 for (current_bfd = abfd->archive_head, count = 0, total_namlen = 0; 2276 current_bfd != NULL; 2277 current_bfd = current_bfd->archive_next, count++) 2278 { 2279 total_namlen += strlen (normalize_filename (current_bfd)) + 1; 2280 2281 if (makemap 2282 && ! hasobjects 2283 && bfd_check_format (current_bfd, bfd_object)) 2284 hasobjects = TRUE; 2285 2286 if (current_bfd->arelt_data == NULL) 2287 { 2288 size = sizeof (struct areltdata); 2289 current_bfd->arelt_data = bfd_zmalloc (size); 2290 if (current_bfd->arelt_data == NULL) 2291 return FALSE; 2292 } 2293 2294 if (arch_xhdr_big (current_bfd) == NULL) 2295 { 2296 struct xcoff_ar_hdr_big *ahdrp; 2297 struct stat s; 2298 2299 /* XXX This should actually be a call to stat64 (at least on 2300 32-bit machines). 2301 XXX This call will fail if the original object is not found. */ 2302 if (stat (bfd_get_filename (current_bfd), &s) != 0) 2303 { 2304 bfd_set_error (bfd_error_system_call); 2305 return FALSE; 2306 } 2307 2308 ahdrp = bfd_zalloc (current_bfd, sizeof (*ahdrp)); 2309 if (ahdrp == NULL) 2310 return FALSE; 2311 2312 PRINT20 (ahdrp->size, s.st_size); 2313 PRINT12 (ahdrp->date, s.st_mtime); 2314 PRINT12 (ahdrp->uid, s.st_uid); 2315 PRINT12 (ahdrp->gid, s.st_gid); 2316 PRINT12_OCTAL (ahdrp->mode, s.st_mode); 2317 2318 arch_eltdata (current_bfd)->arch_header = (char *) ahdrp; 2319 arch_eltdata (current_bfd)->parsed_size = s.st_size; 2320 } 2321 } 2322 2323 offsets = NULL; 2324 if (count) 2325 { 2326 offsets = (file_ptr *) bfd_malloc (count * sizeof (file_ptr)); 2327 if (offsets == NULL) 2328 return FALSE; 2329 } 2330 2331 prevoff = 0; 2332 for (archive_iterator_begin (&iterator, abfd), i = 0; 2333 archive_iterator_next (&iterator); 2334 i++) 2335 { 2336 bfd_size_type namlen; 2337 struct xcoff_ar_hdr_big *ahdrp; 2338 2339 ahdrp = arch_xhdr_big (iterator.current.member); 2340 PRINT20 (ahdrp->prevoff, prevoff); 2341 PRINT4 (ahdrp->namlen, iterator.current.namlen); 2342 PRINT20 (ahdrp->nextoff, iterator.next.offset); 2343 2344 if (!do_pad (abfd, iterator.current.leading_padding)) 2345 { 2346 free (offsets); 2347 return FALSE; 2348 } 2349 2350 BFD_ASSERT (iterator.current.offset == bfd_tell (abfd)); 2351 namlen = iterator.current.padded_namlen; 2352 if (bfd_bwrite (ahdrp, SIZEOF_AR_HDR_BIG, abfd) != SIZEOF_AR_HDR_BIG 2353 || bfd_bwrite (iterator.current.name, namlen, abfd) != namlen 2354 || bfd_bwrite (XCOFFARFMAG, SXCOFFARFMAG, abfd) != SXCOFFARFMAG 2355 || bfd_seek (iterator.current.member, 0, SEEK_SET) != 0 2356 || !do_copy (abfd, iterator.current.member) 2357 || !do_pad (abfd, iterator.current.trailing_padding)) 2358 { 2359 free (offsets); 2360 return FALSE; 2361 } 2362 2363 offsets[i] = iterator.current.offset; 2364 prevoff = iterator.current.offset; 2365 } 2366 2367 if (count) 2368 { 2369 PRINT20 (fhdr.firstmemoff, offsets[0]); 2370 PRINT20 (fhdr.lastmemoff, prevoff); 2371 } 2372 2373 /* Write out the member table. 2374 Layout : 2375 2376 standard big archive header 2377 0x0000 ar_size [0x14] 2378 0x0014 ar_nxtmem [0x14] 2379 0x0028 ar_prvmem [0x14] 2380 0x003C ar_date [0x0C] 2381 0x0048 ar_uid [0x0C] 2382 0x0054 ar_gid [0x0C] 2383 0x0060 ar_mod [0x0C] 2384 0x006C ar_namelen[0x04] 2385 0x0070 ar_fmag [0x02] 2386 2387 Member table 2388 0x0072 count [0x14] 2389 0x0086 offsets [0x14 * counts] 2390 0x0086 + 0x14 * counts names [??] 2391 ?? pad to even bytes. 2392 */ 2393 2394 nextoff = iterator.next.offset; 2395 BFD_ASSERT (nextoff == bfd_tell (abfd)); 2396 2397 member_table_size = (SIZEOF_AR_HDR_BIG 2398 + SXCOFFARFMAG 2399 + XCOFFARMAGBIG_ELEMENT_SIZE 2400 + count * XCOFFARMAGBIG_ELEMENT_SIZE 2401 + total_namlen); 2402 2403 member_table_size += member_table_size & 1; 2404 member_table = bfd_zmalloc (member_table_size); 2405 if (member_table == NULL) 2406 { 2407 free (offsets); 2408 return FALSE; 2409 } 2410 2411 hdr = (struct xcoff_ar_hdr_big *) member_table; 2412 2413 PRINT20 (hdr->size, (XCOFFARMAGBIG_ELEMENT_SIZE 2414 + count * XCOFFARMAGBIG_ELEMENT_SIZE 2415 + total_namlen + (total_namlen & 1))); 2416 if (makemap && hasobjects) 2417 PRINT20 (hdr->nextoff, nextoff + member_table_size); 2418 else 2419 PRINT20 (hdr->nextoff, 0); 2420 PRINT20 (hdr->prevoff, prevoff); 2421 PRINT12 (hdr->date, 0); 2422 PRINT12 (hdr->uid, 0); 2423 PRINT12 (hdr->gid, 0); 2424 PRINT12 (hdr->mode, 0); 2425 PRINT4 (hdr->namlen, 0); 2426 2427 mt = member_table + SIZEOF_AR_HDR_BIG; 2428 memcpy (mt, XCOFFARFMAG, SXCOFFARFMAG); 2429 mt += SXCOFFARFMAG; 2430 2431 PRINT20 (mt, count); 2432 mt += XCOFFARMAGBIG_ELEMENT_SIZE; 2433 for (i = 0; i < (size_t) count; i++) 2434 { 2435 PRINT20 (mt, offsets[i]); 2436 mt += XCOFFARMAGBIG_ELEMENT_SIZE; 2437 } 2438 2439 if (count) 2440 { 2441 free (offsets); 2442 offsets = NULL; 2443 } 2444 2445 for (current_bfd = abfd->archive_head; 2446 current_bfd != NULL; 2447 current_bfd = current_bfd->archive_next) 2448 { 2449 const char *name; 2450 size_t namlen; 2451 2452 name = normalize_filename (current_bfd); 2453 namlen = sprintf (mt, "%s", name); 2454 mt += namlen + 1; 2455 } 2456 2457 if (bfd_bwrite (member_table, member_table_size, abfd) != member_table_size) 2458 return FALSE; 2459 2460 free (member_table); 2461 2462 PRINT20 (fhdr.memoff, nextoff); 2463 2464 prevoff = nextoff; 2465 nextoff += member_table_size; 2466 2467 /* Write out the armap, if appropriate. */ 2468 2469 if (! makemap || ! hasobjects) 2470 PRINT20 (fhdr.symoff, 0); 2471 else 2472 { 2473 BFD_ASSERT (nextoff == bfd_tell (abfd)); 2474 2475 /* Save nextoff in fhdr.symoff so the armap routine can use it. */ 2476 PRINT20 (fhdr.symoff, nextoff); 2477 2478 bfd_ardata (abfd)->tdata = &fhdr; 2479 if (! _bfd_compute_and_write_armap (abfd, 0)) 2480 return FALSE; 2481 } 2482 2483 /* Write out the archive file header. */ 2484 2485 if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0 2486 || (bfd_bwrite (&fhdr, (bfd_size_type) SIZEOF_AR_FILE_HDR_BIG, 2487 abfd) != SIZEOF_AR_FILE_HDR_BIG)) 2488 return FALSE; 2489 2490 return TRUE; 2491} 2492 2493bfd_boolean 2494_bfd_xcoff_write_archive_contents (bfd *abfd) 2495{ 2496 if (! xcoff_big_format_p (abfd)) 2497 return xcoff_write_archive_contents_old (abfd); 2498 else 2499 return xcoff_write_archive_contents_big (abfd); 2500} 2501 2502/* We can't use the usual coff_sizeof_headers routine, because AIX 2503 always uses an a.out header. */ 2504 2505int 2506_bfd_xcoff_sizeof_headers (bfd *abfd, 2507 struct bfd_link_info *info ATTRIBUTE_UNUSED) 2508{ 2509 int size; 2510 2511 size = FILHSZ; 2512 if (xcoff_data (abfd)->full_aouthdr) 2513 size += AOUTSZ; 2514 else 2515 size += SMALL_AOUTSZ; 2516 size += abfd->section_count * SCNHSZ; 2517 2518 if (info->strip != strip_all) 2519 { 2520 /* There can be additional sections just for dealing with overflow in 2521 reloc and lineno counts. But the numbers of relocs and lineno aren't 2522 known when bfd_sizeof_headers is called, so we compute them by 2523 summing the numbers from input sections. */ 2524 struct nbr_reloc_lineno 2525 { 2526 unsigned int reloc_count; 2527 unsigned int lineno_count; 2528 }; 2529 struct nbr_reloc_lineno *n_rl; 2530 bfd *sub; 2531 unsigned int max_index; 2532 asection *s; 2533 2534 /* Although the number of sections is known, the maximum value of 2535 section->index isn't (because some sections may have been removed). 2536 Don't try to renumber sections, just compute the upper bound. */ 2537 max_index = 0; 2538 for (s = abfd->sections; s != NULL; s = s->next) 2539 if (s->index > max_index) 2540 max_index = s->index; 2541 2542 /* Allocate the per section counters. It could be possible to use a 2543 preallocated array as the number of sections is limited on XCOFF, 2544 but this creates a maintainance issue. */ 2545 n_rl = bfd_zmalloc ((max_index + 1) * sizeof (*n_rl)); 2546 if (n_rl == NULL) 2547 return -1; 2548 2549 /* Sum. */ 2550 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) 2551 for (s = sub->sections; s != NULL; s = s->next) 2552 { 2553 struct nbr_reloc_lineno *e = &n_rl[s->output_section->index]; 2554 e->reloc_count += s->reloc_count; 2555 e->lineno_count += s->lineno_count; 2556 } 2557 2558 /* Add the size of a section for each section with an overflow. */ 2559 for (s = abfd->sections; s != NULL; s = s->next) 2560 { 2561 struct nbr_reloc_lineno *e = &n_rl[s->index]; 2562 2563 if (e->reloc_count >= 0xffff 2564 || (e->lineno_count >= 0xffff && info->strip != strip_debugger)) 2565 size += SCNHSZ; 2566 } 2567 2568 free (n_rl); 2569 } 2570 2571 return size; 2572} 2573 2574/* Routines to swap information in the XCOFF .loader section. If we 2575 ever need to write an XCOFF loader, this stuff will need to be 2576 moved to another file shared by the linker (which XCOFF calls the 2577 ``binder'') and the loader. */ 2578 2579/* Swap in the ldhdr structure. */ 2580 2581static void 2582xcoff_swap_ldhdr_in (bfd *abfd, const void * s, struct internal_ldhdr *dst) 2583{ 2584 const struct external_ldhdr *src = (const struct external_ldhdr *) s; 2585 2586 dst->l_version = bfd_get_32 (abfd, src->l_version); 2587 dst->l_nsyms = bfd_get_32 (abfd, src->l_nsyms); 2588 dst->l_nreloc = bfd_get_32 (abfd, src->l_nreloc); 2589 dst->l_istlen = bfd_get_32 (abfd, src->l_istlen); 2590 dst->l_nimpid = bfd_get_32 (abfd, src->l_nimpid); 2591 dst->l_impoff = bfd_get_32 (abfd, src->l_impoff); 2592 dst->l_stlen = bfd_get_32 (abfd, src->l_stlen); 2593 dst->l_stoff = bfd_get_32 (abfd, src->l_stoff); 2594} 2595 2596/* Swap out the ldhdr structure. */ 2597 2598static void 2599xcoff_swap_ldhdr_out (bfd *abfd, const struct internal_ldhdr *src, void * d) 2600{ 2601 struct external_ldhdr *dst = (struct external_ldhdr *) d; 2602 2603 bfd_put_32 (abfd, (bfd_vma) src->l_version, dst->l_version); 2604 bfd_put_32 (abfd, src->l_nsyms, dst->l_nsyms); 2605 bfd_put_32 (abfd, src->l_nreloc, dst->l_nreloc); 2606 bfd_put_32 (abfd, src->l_istlen, dst->l_istlen); 2607 bfd_put_32 (abfd, src->l_nimpid, dst->l_nimpid); 2608 bfd_put_32 (abfd, src->l_impoff, dst->l_impoff); 2609 bfd_put_32 (abfd, src->l_stlen, dst->l_stlen); 2610 bfd_put_32 (abfd, src->l_stoff, dst->l_stoff); 2611} 2612 2613/* Swap in the ldsym structure. */ 2614 2615static void 2616xcoff_swap_ldsym_in (bfd *abfd, const void * s, struct internal_ldsym *dst) 2617{ 2618 const struct external_ldsym *src = (const struct external_ldsym *) s; 2619 2620 if (bfd_get_32 (abfd, src->_l._l_l._l_zeroes) != 0) { 2621 memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN); 2622 } else { 2623 dst->_l._l_l._l_zeroes = 0; 2624 dst->_l._l_l._l_offset = bfd_get_32 (abfd, src->_l._l_l._l_offset); 2625 } 2626 dst->l_value = bfd_get_32 (abfd, src->l_value); 2627 dst->l_scnum = bfd_get_16 (abfd, src->l_scnum); 2628 dst->l_smtype = bfd_get_8 (abfd, src->l_smtype); 2629 dst->l_smclas = bfd_get_8 (abfd, src->l_smclas); 2630 dst->l_ifile = bfd_get_32 (abfd, src->l_ifile); 2631 dst->l_parm = bfd_get_32 (abfd, src->l_parm); 2632} 2633 2634/* Swap out the ldsym structure. */ 2635 2636static void 2637xcoff_swap_ldsym_out (bfd *abfd, const struct internal_ldsym *src, void * d) 2638{ 2639 struct external_ldsym *dst = (struct external_ldsym *) d; 2640 2641 if (src->_l._l_l._l_zeroes != 0) 2642 memcpy (dst->_l._l_name, src->_l._l_name, SYMNMLEN); 2643 else 2644 { 2645 bfd_put_32 (abfd, (bfd_vma) 0, dst->_l._l_l._l_zeroes); 2646 bfd_put_32 (abfd, (bfd_vma) src->_l._l_l._l_offset, 2647 dst->_l._l_l._l_offset); 2648 } 2649 bfd_put_32 (abfd, src->l_value, dst->l_value); 2650 bfd_put_16 (abfd, (bfd_vma) src->l_scnum, dst->l_scnum); 2651 bfd_put_8 (abfd, src->l_smtype, dst->l_smtype); 2652 bfd_put_8 (abfd, src->l_smclas, dst->l_smclas); 2653 bfd_put_32 (abfd, src->l_ifile, dst->l_ifile); 2654 bfd_put_32 (abfd, src->l_parm, dst->l_parm); 2655} 2656 2657static void 2658xcoff_swap_reloc_in (bfd *abfd, void * s, void * d) 2659{ 2660 struct external_reloc *src = (struct external_reloc *) s; 2661 struct internal_reloc *dst = (struct internal_reloc *) d; 2662 2663 memset (dst, 0, sizeof (struct internal_reloc)); 2664 2665 dst->r_vaddr = bfd_get_32 (abfd, src->r_vaddr); 2666 dst->r_symndx = bfd_get_32 (abfd, src->r_symndx); 2667 dst->r_size = bfd_get_8 (abfd, src->r_size); 2668 dst->r_type = bfd_get_8 (abfd, src->r_type); 2669} 2670 2671static unsigned int 2672xcoff_swap_reloc_out (bfd *abfd, void * s, void * d) 2673{ 2674 struct internal_reloc *src = (struct internal_reloc *) s; 2675 struct external_reloc *dst = (struct external_reloc *) d; 2676 2677 bfd_put_32 (abfd, src->r_vaddr, dst->r_vaddr); 2678 bfd_put_32 (abfd, src->r_symndx, dst->r_symndx); 2679 bfd_put_8 (abfd, src->r_type, dst->r_type); 2680 bfd_put_8 (abfd, src->r_size, dst->r_size); 2681 2682 return bfd_coff_relsz (abfd); 2683} 2684 2685/* Swap in the ldrel structure. */ 2686 2687static void 2688xcoff_swap_ldrel_in (bfd *abfd, const void * s, struct internal_ldrel *dst) 2689{ 2690 const struct external_ldrel *src = (const struct external_ldrel *) s; 2691 2692 dst->l_vaddr = bfd_get_32 (abfd, src->l_vaddr); 2693 dst->l_symndx = bfd_get_32 (abfd, src->l_symndx); 2694 dst->l_rtype = bfd_get_16 (abfd, src->l_rtype); 2695 dst->l_rsecnm = bfd_get_16 (abfd, src->l_rsecnm); 2696} 2697 2698/* Swap out the ldrel structure. */ 2699 2700static void 2701xcoff_swap_ldrel_out (bfd *abfd, const struct internal_ldrel *src, void * d) 2702{ 2703 struct external_ldrel *dst = (struct external_ldrel *) d; 2704 2705 bfd_put_32 (abfd, src->l_vaddr, dst->l_vaddr); 2706 bfd_put_32 (abfd, src->l_symndx, dst->l_symndx); 2707 bfd_put_16 (abfd, (bfd_vma) src->l_rtype, dst->l_rtype); 2708 bfd_put_16 (abfd, (bfd_vma) src->l_rsecnm, dst->l_rsecnm); 2709} 2710 2711 2712bfd_boolean 2713xcoff_reloc_type_noop (bfd *input_bfd ATTRIBUTE_UNUSED, 2714 asection *input_section ATTRIBUTE_UNUSED, 2715 bfd *output_bfd ATTRIBUTE_UNUSED, 2716 struct internal_reloc *rel ATTRIBUTE_UNUSED, 2717 struct internal_syment *sym ATTRIBUTE_UNUSED, 2718 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED, 2719 bfd_vma val ATTRIBUTE_UNUSED, 2720 bfd_vma addend ATTRIBUTE_UNUSED, 2721 bfd_vma *relocation ATTRIBUTE_UNUSED, 2722 bfd_byte *contents ATTRIBUTE_UNUSED) 2723{ 2724 return TRUE; 2725} 2726 2727bfd_boolean 2728xcoff_reloc_type_fail (bfd *input_bfd, 2729 asection *input_section ATTRIBUTE_UNUSED, 2730 bfd *output_bfd ATTRIBUTE_UNUSED, 2731 struct internal_reloc *rel, 2732 struct internal_syment *sym ATTRIBUTE_UNUSED, 2733 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED, 2734 bfd_vma val ATTRIBUTE_UNUSED, 2735 bfd_vma addend ATTRIBUTE_UNUSED, 2736 bfd_vma *relocation ATTRIBUTE_UNUSED, 2737 bfd_byte *contents ATTRIBUTE_UNUSED) 2738{ 2739 _bfd_error_handler 2740 /* xgettext: c-format */ 2741 (_("%s: unsupported relocation type 0x%02x"), 2742 bfd_get_filename (input_bfd), (unsigned int) rel->r_type); 2743 bfd_set_error (bfd_error_bad_value); 2744 return FALSE; 2745} 2746 2747bfd_boolean 2748xcoff_reloc_type_pos (bfd *input_bfd ATTRIBUTE_UNUSED, 2749 asection *input_section ATTRIBUTE_UNUSED, 2750 bfd *output_bfd ATTRIBUTE_UNUSED, 2751 struct internal_reloc *rel ATTRIBUTE_UNUSED, 2752 struct internal_syment *sym ATTRIBUTE_UNUSED, 2753 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED, 2754 bfd_vma val, 2755 bfd_vma addend, 2756 bfd_vma *relocation, 2757 bfd_byte *contents ATTRIBUTE_UNUSED) 2758{ 2759 *relocation = val + addend; 2760 return TRUE; 2761} 2762 2763bfd_boolean 2764xcoff_reloc_type_neg (bfd *input_bfd ATTRIBUTE_UNUSED, 2765 asection *input_section ATTRIBUTE_UNUSED, 2766 bfd *output_bfd ATTRIBUTE_UNUSED, 2767 struct internal_reloc *rel ATTRIBUTE_UNUSED, 2768 struct internal_syment *sym ATTRIBUTE_UNUSED, 2769 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED, 2770 bfd_vma val, 2771 bfd_vma addend, 2772 bfd_vma *relocation, 2773 bfd_byte *contents ATTRIBUTE_UNUSED) 2774{ 2775 *relocation = addend - val; 2776 return TRUE; 2777} 2778 2779bfd_boolean 2780xcoff_reloc_type_rel (bfd *input_bfd ATTRIBUTE_UNUSED, 2781 asection *input_section, 2782 bfd *output_bfd ATTRIBUTE_UNUSED, 2783 struct internal_reloc *rel ATTRIBUTE_UNUSED, 2784 struct internal_syment *sym ATTRIBUTE_UNUSED, 2785 struct reloc_howto_struct *howto, 2786 bfd_vma val, 2787 bfd_vma addend, 2788 bfd_vma *relocation, 2789 bfd_byte *contents ATTRIBUTE_UNUSED) 2790{ 2791 howto->pc_relative = TRUE; 2792 2793 /* A PC relative reloc includes the section address. */ 2794 addend += input_section->vma; 2795 2796 *relocation = val + addend; 2797 *relocation -= (input_section->output_section->vma 2798 + input_section->output_offset); 2799 return TRUE; 2800} 2801 2802bfd_boolean 2803xcoff_reloc_type_toc (bfd *input_bfd, 2804 asection *input_section ATTRIBUTE_UNUSED, 2805 bfd *output_bfd, 2806 struct internal_reloc *rel, 2807 struct internal_syment *sym, 2808 struct reloc_howto_struct *howto ATTRIBUTE_UNUSED, 2809 bfd_vma val, 2810 bfd_vma addend ATTRIBUTE_UNUSED, 2811 bfd_vma *relocation, 2812 bfd_byte *contents ATTRIBUTE_UNUSED) 2813{ 2814 struct xcoff_link_hash_entry *h; 2815 2816 if (0 > rel->r_symndx) 2817 return FALSE; 2818 2819 h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx]; 2820 2821 if (h != NULL && h->smclas != XMC_TD) 2822 { 2823 if (h->toc_section == NULL) 2824 { 2825 _bfd_error_handler 2826 /* xgettext: c-format */ 2827 (_("%s: TOC reloc at 0x%x to symbol `%s' with no TOC entry"), 2828 bfd_get_filename (input_bfd), rel->r_vaddr, 2829 h->root.root.string); 2830 bfd_set_error (bfd_error_bad_value); 2831 return FALSE; 2832 } 2833 2834 BFD_ASSERT ((h->flags & XCOFF_SET_TOC) == 0); 2835 val = (h->toc_section->output_section->vma 2836 + h->toc_section->output_offset); 2837 } 2838 2839 *relocation = ((val - xcoff_data (output_bfd)->toc) 2840 - (sym->n_value - xcoff_data (input_bfd)->toc)); 2841 return TRUE; 2842} 2843 2844bfd_boolean 2845xcoff_reloc_type_ba (bfd *input_bfd ATTRIBUTE_UNUSED, 2846 asection *input_section ATTRIBUTE_UNUSED, 2847 bfd *output_bfd ATTRIBUTE_UNUSED, 2848 struct internal_reloc *rel ATTRIBUTE_UNUSED, 2849 struct internal_syment *sym ATTRIBUTE_UNUSED, 2850 struct reloc_howto_struct *howto, 2851 bfd_vma val, 2852 bfd_vma addend, 2853 bfd_vma *relocation, 2854 bfd_byte *contents ATTRIBUTE_UNUSED) 2855{ 2856 howto->src_mask &= ~3; 2857 howto->dst_mask = howto->src_mask; 2858 2859 *relocation = val + addend; 2860 2861 return TRUE; 2862} 2863 2864static bfd_boolean 2865xcoff_reloc_type_br (bfd *input_bfd, 2866 asection *input_section, 2867 bfd *output_bfd ATTRIBUTE_UNUSED, 2868 struct internal_reloc *rel, 2869 struct internal_syment *sym ATTRIBUTE_UNUSED, 2870 struct reloc_howto_struct *howto, 2871 bfd_vma val, 2872 bfd_vma addend, 2873 bfd_vma *relocation, 2874 bfd_byte *contents) 2875{ 2876 struct xcoff_link_hash_entry *h; 2877 bfd_vma section_offset; 2878 2879 if (0 > rel->r_symndx) 2880 return FALSE; 2881 2882 h = obj_xcoff_sym_hashes (input_bfd)[rel->r_symndx]; 2883 section_offset = rel->r_vaddr - input_section->vma; 2884 2885 /* If we see an R_BR or R_RBR reloc which is jumping to global 2886 linkage code, and it is followed by an appropriate cror nop 2887 instruction, we replace the cror with lwz r2,20(r1). This 2888 restores the TOC after the glink code. Contrariwise, if the 2889 call is followed by a lwz r2,20(r1), but the call is not 2890 going to global linkage code, we can replace the load with a 2891 cror. */ 2892 if (NULL != h 2893 && (bfd_link_hash_defined == h->root.type 2894 || bfd_link_hash_defweak == h->root.type) 2895 && section_offset + 8 <= input_section->size) 2896 { 2897 bfd_byte *pnext; 2898 unsigned long next; 2899 2900 pnext = contents + section_offset + 4; 2901 next = bfd_get_32 (input_bfd, pnext); 2902 2903 /* The _ptrgl function is magic. It is used by the AIX 2904 compiler to call a function through a pointer. */ 2905 if (h->smclas == XMC_GL || strcmp (h->root.root.string, "._ptrgl") == 0) 2906 { 2907 if (next == 0x4def7b82 /* cror 15,15,15 */ 2908 || next == 0x4ffffb82 /* cror 31,31,31 */ 2909 || next == 0x60000000) /* ori r0,r0,0 */ 2910 bfd_put_32 (input_bfd, 0x80410014, pnext); /* lwz r2,20(r1) */ 2911 2912 } 2913 else 2914 { 2915 if (next == 0x80410014) /* lwz r2,20(r1) */ 2916 bfd_put_32 (input_bfd, 0x60000000, pnext); /* ori r0,r0,0 */ 2917 } 2918 } 2919 else if (NULL != h && bfd_link_hash_undefined == h->root.type) 2920 { 2921 /* Normally, this relocation is against a defined symbol. In the 2922 case where this is a partial link and the output section offset 2923 is greater than 2^25, the linker will return an invalid error 2924 message that the relocation has been truncated. Yes it has been 2925 truncated but no it not important. For this case, disable the 2926 overflow checking. */ 2927 2928 howto->complain_on_overflow = complain_overflow_dont; 2929 } 2930 2931 /* The original PC-relative relocation is biased by -r_vaddr, so adding 2932 the value below will give the absolute target address. */ 2933 *relocation = val + addend + rel->r_vaddr; 2934 2935 howto->src_mask &= ~3; 2936 howto->dst_mask = howto->src_mask; 2937 2938 if (h != NULL 2939 && (h->root.type == bfd_link_hash_defined 2940 || h->root.type == bfd_link_hash_defweak) 2941 && bfd_is_abs_section (h->root.u.def.section) 2942 && section_offset + 4 <= input_section->size) 2943 { 2944 bfd_byte *ptr; 2945 bfd_vma insn; 2946 2947 /* Turn the relative branch into an absolute one by setting the 2948 AA bit. */ 2949 ptr = contents + section_offset; 2950 insn = bfd_get_32 (input_bfd, ptr); 2951 insn |= 2; 2952 bfd_put_32 (input_bfd, insn, ptr); 2953 2954 /* Make the howto absolute too. */ 2955 howto->pc_relative = FALSE; 2956 howto->complain_on_overflow = complain_overflow_bitfield; 2957 } 2958 else 2959 { 2960 /* Use a PC-relative howto and subtract the instruction's address 2961 from the target address we calculated above. */ 2962 howto->pc_relative = TRUE; 2963 *relocation -= (input_section->output_section->vma 2964 + input_section->output_offset 2965 + section_offset); 2966 } 2967 return TRUE; 2968} 2969 2970bfd_boolean 2971xcoff_reloc_type_crel (bfd *input_bfd ATTRIBUTE_UNUSED, 2972 asection *input_section, 2973 bfd *output_bfd ATTRIBUTE_UNUSED, 2974 struct internal_reloc *rel ATTRIBUTE_UNUSED, 2975 struct internal_syment *sym ATTRIBUTE_UNUSED, 2976 struct reloc_howto_struct *howto, 2977 bfd_vma val ATTRIBUTE_UNUSED, 2978 bfd_vma addend, 2979 bfd_vma *relocation, 2980 bfd_byte *contents ATTRIBUTE_UNUSED) 2981{ 2982 howto->pc_relative = TRUE; 2983 howto->src_mask &= ~3; 2984 howto->dst_mask = howto->src_mask; 2985 2986 /* A PC relative reloc includes the section address. */ 2987 addend += input_section->vma; 2988 2989 *relocation = val + addend; 2990 *relocation -= (input_section->output_section->vma 2991 + input_section->output_offset); 2992 return TRUE; 2993} 2994 2995static bfd_boolean 2996xcoff_complain_overflow_dont_func (bfd *input_bfd ATTRIBUTE_UNUSED, 2997 bfd_vma val ATTRIBUTE_UNUSED, 2998 bfd_vma relocation ATTRIBUTE_UNUSED, 2999 struct reloc_howto_struct * 3000 howto ATTRIBUTE_UNUSED) 3001{ 3002 return FALSE; 3003} 3004 3005static bfd_boolean 3006xcoff_complain_overflow_bitfield_func (bfd *input_bfd, 3007 bfd_vma val, 3008 bfd_vma relocation, 3009 struct reloc_howto_struct *howto) 3010{ 3011 bfd_vma fieldmask, signmask, ss; 3012 bfd_vma a, b, sum; 3013 3014 /* Get the values to be added together. For signed and unsigned 3015 relocations, we assume that all values should be truncated to 3016 the size of an address. For bitfields, all the bits matter. 3017 See also bfd_check_overflow. */ 3018 fieldmask = N_ONES (howto->bitsize); 3019 a = relocation; 3020 b = val & howto->src_mask; 3021 3022 /* Much like unsigned, except no trimming with addrmask. In 3023 addition, the sum overflows if there is a carry out of 3024 the bfd_vma, i.e., the sum is less than either input 3025 operand. */ 3026 a >>= howto->rightshift; 3027 b >>= howto->bitpos; 3028 3029 /* Bitfields are sometimes used for signed numbers; for 3030 example, a 13-bit field sometimes represents values in 3031 0..8191 and sometimes represents values in -4096..4095. 3032 If the field is signed and a is -4095 (0x1001) and b is 3033 -1 (0x1fff), the sum is -4096 (0x1000), but (0x1001 + 3034 0x1fff is 0x3000). It's not clear how to handle this 3035 everywhere, since there is not way to know how many bits 3036 are significant in the relocation, but the original code 3037 assumed that it was fully sign extended, and we will keep 3038 that assumption. */ 3039 signmask = (fieldmask >> 1) + 1; 3040 3041 if ((a & ~ fieldmask) != 0) 3042 { 3043 /* Some bits out of the field are set. This might not 3044 be a problem: if this is a signed bitfield, it is OK 3045 iff all the high bits are set, including the sign 3046 bit. We'll try setting all but the most significant 3047 bit in the original relocation value: if this is all 3048 ones, we are OK, assuming a signed bitfield. */ 3049 ss = (signmask << howto->rightshift) - 1; 3050 if ((ss | relocation) != ~ (bfd_vma) 0) 3051 return TRUE; 3052 a &= fieldmask; 3053 } 3054 3055 /* We just assume (b & ~ fieldmask) == 0. */ 3056 3057 /* We explicitly permit wrap around if this relocation 3058 covers the high bit of an address. The Linux kernel 3059 relies on it, and it is the only way to write assembler 3060 code which can run when loaded at a location 0x80000000 3061 away from the location at which it is linked. */ 3062 if (howto->bitsize + howto->rightshift 3063 == bfd_arch_bits_per_address (input_bfd)) 3064 return FALSE; 3065 3066 sum = a + b; 3067 if (sum < a || (sum & ~ fieldmask) != 0) 3068 { 3069 /* There was a carry out, or the field overflow. Test 3070 for signed operands again. Here is the overflow test 3071 is as for complain_overflow_signed. */ 3072 if (((~ (a ^ b)) & (a ^ sum)) & signmask) 3073 return TRUE; 3074 } 3075 3076 return FALSE; 3077} 3078 3079static bfd_boolean 3080xcoff_complain_overflow_signed_func (bfd *input_bfd, 3081 bfd_vma val, 3082 bfd_vma relocation, 3083 struct reloc_howto_struct *howto) 3084{ 3085 bfd_vma addrmask, fieldmask, signmask, ss; 3086 bfd_vma a, b, sum; 3087 3088 /* Get the values to be added together. For signed and unsigned 3089 relocations, we assume that all values should be truncated to 3090 the size of an address. For bitfields, all the bits matter. 3091 See also bfd_check_overflow. */ 3092 fieldmask = N_ONES (howto->bitsize); 3093 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask; 3094 a = relocation; 3095 b = val & howto->src_mask; 3096 3097 a = (a & addrmask) >> howto->rightshift; 3098 3099 /* If any sign bits are set, all sign bits must be set. 3100 That is, A must be a valid negative address after 3101 shifting. */ 3102 signmask = ~ (fieldmask >> 1); 3103 ss = a & signmask; 3104 if (ss != 0 && ss != ((addrmask >> howto->rightshift) & signmask)) 3105 return TRUE; 3106 3107 /* We only need this next bit of code if the sign bit of B 3108 is below the sign bit of A. This would only happen if 3109 SRC_MASK had fewer bits than BITSIZE. Note that if 3110 SRC_MASK has more bits than BITSIZE, we can get into 3111 trouble; we would need to verify that B is in range, as 3112 we do for A above. */ 3113 signmask = ((~ howto->src_mask) >> 1) & howto->src_mask; 3114 if ((b & signmask) != 0) 3115 { 3116 /* Set all the bits above the sign bit. */ 3117 b -= signmask <<= 1; 3118 } 3119 3120 b = (b & addrmask) >> howto->bitpos; 3121 3122 /* Now we can do the addition. */ 3123 sum = a + b; 3124 3125 /* See if the result has the correct sign. Bits above the 3126 sign bit are junk now; ignore them. If the sum is 3127 positive, make sure we did not have all negative inputs; 3128 if the sum is negative, make sure we did not have all 3129 positive inputs. The test below looks only at the sign 3130 bits, and it really just 3131 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM) 3132 */ 3133 signmask = (fieldmask >> 1) + 1; 3134 if (((~ (a ^ b)) & (a ^ sum)) & signmask) 3135 return TRUE; 3136 3137 return FALSE; 3138} 3139 3140static bfd_boolean 3141xcoff_complain_overflow_unsigned_func (bfd *input_bfd, 3142 bfd_vma val, 3143 bfd_vma relocation, 3144 struct reloc_howto_struct *howto) 3145{ 3146 bfd_vma addrmask, fieldmask; 3147 bfd_vma a, b, sum; 3148 3149 /* Get the values to be added together. For signed and unsigned 3150 relocations, we assume that all values should be truncated to 3151 the size of an address. For bitfields, all the bits matter. 3152 See also bfd_check_overflow. */ 3153 fieldmask = N_ONES (howto->bitsize); 3154 addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask; 3155 a = relocation; 3156 b = val & howto->src_mask; 3157 3158 /* Checking for an unsigned overflow is relatively easy: 3159 trim the addresses and add, and trim the result as well. 3160 Overflow is normally indicated when the result does not 3161 fit in the field. However, we also need to consider the 3162 case when, e.g., fieldmask is 0x7fffffff or smaller, an 3163 input is 0x80000000, and bfd_vma is only 32 bits; then we 3164 will get sum == 0, but there is an overflow, since the 3165 inputs did not fit in the field. Instead of doing a 3166 separate test, we can check for this by or-ing in the 3167 operands when testing for the sum overflowing its final 3168 field. */ 3169 a = (a & addrmask) >> howto->rightshift; 3170 b = (b & addrmask) >> howto->bitpos; 3171 sum = (a + b) & addrmask; 3172 if ((a | b | sum) & ~ fieldmask) 3173 return TRUE; 3174 3175 return FALSE; 3176} 3177 3178/* This is the relocation function for the RS/6000/POWER/PowerPC. 3179 This is currently the only processor which uses XCOFF; I hope that 3180 will never change. 3181 3182 I took the relocation type definitions from two documents: 3183 the PowerPC AIX Version 4 Application Binary Interface, First 3184 Edition (April 1992), and the PowerOpen ABI, Big-Endian 3185 32-Bit Hardware Implementation (June 30, 1994). Differences 3186 between the documents are noted below. 3187 3188 Unsupported r_type's 3189 3190 R_RTB: 3191 R_RRTBI: 3192 R_RRTBA: 3193 3194 These relocs are defined by the PowerPC ABI to be 3195 relative branches which use half of the difference 3196 between the symbol and the program counter. I can't 3197 quite figure out when this is useful. These relocs are 3198 not defined by the PowerOpen ABI. 3199 3200 Supported r_type's 3201 3202 R_POS: 3203 Simple positive relocation. 3204 3205 R_NEG: 3206 Simple negative relocation. 3207 3208 R_REL: 3209 Simple PC relative relocation. 3210 3211 R_TOC: 3212 TOC relative relocation. The value in the instruction in 3213 the input file is the offset from the input file TOC to 3214 the desired location. We want the offset from the final 3215 TOC to the desired location. We have: 3216 isym = iTOC + in 3217 iinsn = in + o 3218 osym = oTOC + on 3219 oinsn = on + o 3220 so we must change insn by on - in. 3221 3222 R_GL: 3223 GL linkage relocation. The value of this relocation 3224 is the address of the entry in the TOC section. 3225 3226 R_TCL: 3227 Local object TOC address. I can't figure out the 3228 difference between this and case R_GL. 3229 3230 R_TRL: 3231 TOC relative relocation. A TOC relative load instruction 3232 which may be changed to a load address instruction. 3233 FIXME: We don't currently implement this optimization. 3234 3235 R_TRLA: 3236 TOC relative relocation. This is a TOC relative load 3237 address instruction which may be changed to a load 3238 instruction. FIXME: I don't know if this is the correct 3239 implementation. 3240 3241 R_BA: 3242 Absolute branch. We don't want to mess with the lower 3243 two bits of the instruction. 3244 3245 R_CAI: 3246 The PowerPC ABI defines this as an absolute call which 3247 may be modified to become a relative call. The PowerOpen 3248 ABI does not define this relocation type. 3249 3250 R_RBA: 3251 Absolute branch which may be modified to become a 3252 relative branch. 3253 3254 R_RBAC: 3255 The PowerPC ABI defines this as an absolute branch to a 3256 fixed address which may be modified to an absolute branch 3257 to a symbol. The PowerOpen ABI does not define this 3258 relocation type. 3259 3260 R_RBRC: 3261 The PowerPC ABI defines this as an absolute branch to a 3262 fixed address which may be modified to a relative branch. 3263 The PowerOpen ABI does not define this relocation type. 3264 3265 R_BR: 3266 Relative branch. We don't want to mess with the lower 3267 two bits of the instruction. 3268 3269 R_CREL: 3270 The PowerPC ABI defines this as a relative call which may 3271 be modified to become an absolute call. The PowerOpen 3272 ABI does not define this relocation type. 3273 3274 R_RBR: 3275 A relative branch which may be modified to become an 3276 absolute branch. 3277 3278 R_RL: 3279 The PowerPC AIX ABI describes this as a load which may be 3280 changed to a load address. The PowerOpen ABI says this 3281 is the same as case R_POS. 3282 3283 R_RLA: 3284 The PowerPC AIX ABI describes this as a load address 3285 which may be changed to a load. The PowerOpen ABI says 3286 this is the same as R_POS. 3287*/ 3288 3289bfd_boolean 3290xcoff_ppc_relocate_section (bfd *output_bfd, 3291 struct bfd_link_info *info, 3292 bfd *input_bfd, 3293 asection *input_section, 3294 bfd_byte *contents, 3295 struct internal_reloc *relocs, 3296 struct internal_syment *syms, 3297 asection **sections) 3298{ 3299 struct internal_reloc *rel; 3300 struct internal_reloc *relend; 3301 3302 rel = relocs; 3303 relend = rel + input_section->reloc_count; 3304 for (; rel < relend; rel++) 3305 { 3306 long symndx; 3307 struct xcoff_link_hash_entry *h; 3308 struct internal_syment *sym; 3309 bfd_vma addend; 3310 bfd_vma val; 3311 struct reloc_howto_struct howto; 3312 bfd_vma relocation; 3313 bfd_vma value_to_relocate; 3314 bfd_vma address; 3315 bfd_byte *location; 3316 3317 /* Relocation type R_REF is a special relocation type which is 3318 merely used to prevent garbage collection from occurring for 3319 the csect including the symbol which it references. */ 3320 if (rel->r_type == R_REF) 3321 continue; 3322 3323 /* howto */ 3324 howto.type = rel->r_type; 3325 howto.rightshift = 0; 3326 howto.bitsize = (rel->r_size & 0x1f) + 1; 3327 howto.size = howto.bitsize > 16 ? 2 : 1; 3328 howto.pc_relative = FALSE; 3329 howto.bitpos = 0; 3330 howto.complain_on_overflow = (rel->r_size & 0x80 3331 ? complain_overflow_signed 3332 : complain_overflow_bitfield); 3333 howto.special_function = NULL; 3334 howto.name = "internal"; 3335 howto.partial_inplace = TRUE; 3336 howto.src_mask = howto.dst_mask = N_ONES (howto.bitsize); 3337 howto.pcrel_offset = FALSE; 3338 3339 /* symbol */ 3340 val = 0; 3341 addend = 0; 3342 h = NULL; 3343 sym = NULL; 3344 symndx = rel->r_symndx; 3345 3346 if (-1 != symndx) 3347 { 3348 asection *sec; 3349 3350 h = obj_xcoff_sym_hashes (input_bfd)[symndx]; 3351 sym = syms + symndx; 3352 addend = - sym->n_value; 3353 3354 if (NULL == h) 3355 { 3356 sec = sections[symndx]; 3357 /* Hack to make sure we use the right TOC anchor value 3358 if this reloc is against the TOC anchor. */ 3359 if (sec->name[3] == '0' 3360 && strcmp (sec->name, ".tc0") == 0) 3361 val = xcoff_data (output_bfd)->toc; 3362 else 3363 val = (sec->output_section->vma 3364 + sec->output_offset 3365 + sym->n_value 3366 - sec->vma); 3367 } 3368 else 3369 { 3370 if (info->unresolved_syms_in_objects != RM_IGNORE 3371 && (h->flags & XCOFF_WAS_UNDEFINED) != 0) 3372 (*info->callbacks->undefined_symbol) 3373 (info, h->root.root.string, 3374 input_bfd, input_section, 3375 rel->r_vaddr - input_section->vma, 3376 info->unresolved_syms_in_objects == RM_GENERATE_ERROR); 3377 3378 if (h->root.type == bfd_link_hash_defined 3379 || h->root.type == bfd_link_hash_defweak) 3380 { 3381 sec = h->root.u.def.section; 3382 val = (h->root.u.def.value 3383 + sec->output_section->vma 3384 + sec->output_offset); 3385 } 3386 else if (h->root.type == bfd_link_hash_common) 3387 { 3388 sec = h->root.u.c.p->section; 3389 val = (sec->output_section->vma 3390 + sec->output_offset); 3391 3392 } 3393 else 3394 { 3395 BFD_ASSERT (bfd_link_relocatable (info) 3396 || (info->static_link 3397 && (h->flags & XCOFF_WAS_UNDEFINED) != 0) 3398 || (h->flags & XCOFF_DEF_DYNAMIC) != 0 3399 || (h->flags & XCOFF_IMPORT) != 0); 3400 } 3401 } 3402 } 3403 3404 if (rel->r_type >= XCOFF_MAX_CALCULATE_RELOCATION 3405 || !((*xcoff_calculate_relocation[rel->r_type]) 3406 (input_bfd, input_section, output_bfd, rel, sym, &howto, val, 3407 addend, &relocation, contents))) 3408 return FALSE; 3409 3410 /* address */ 3411 address = rel->r_vaddr - input_section->vma; 3412 location = contents + address; 3413 3414 if (address > input_section->size) 3415 abort (); 3416 3417 /* Get the value we are going to relocate. */ 3418 if (1 == howto.size) 3419 value_to_relocate = bfd_get_16 (input_bfd, location); 3420 else 3421 value_to_relocate = bfd_get_32 (input_bfd, location); 3422 3423 /* overflow. 3424 3425 FIXME: We may drop bits during the addition 3426 which we don't check for. We must either check at every single 3427 operation, which would be tedious, or we must do the computations 3428 in a type larger than bfd_vma, which would be inefficient. */ 3429 3430 if ((unsigned int) howto.complain_on_overflow 3431 >= XCOFF_MAX_COMPLAIN_OVERFLOW) 3432 abort (); 3433 3434 if (((*xcoff_complain_overflow[howto.complain_on_overflow]) 3435 (input_bfd, value_to_relocate, relocation, &howto))) 3436 { 3437 const char *name; 3438 char buf[SYMNMLEN + 1]; 3439 char reloc_type_name[10]; 3440 3441 if (symndx == -1) 3442 { 3443 name = "*ABS*"; 3444 } 3445 else if (h != NULL) 3446 { 3447 name = NULL; 3448 } 3449 else 3450 { 3451 name = _bfd_coff_internal_syment_name (input_bfd, sym, buf); 3452 if (name == NULL) 3453 name = "UNKNOWN"; 3454 } 3455 sprintf (reloc_type_name, "0x%02x", rel->r_type); 3456 3457 (*info->callbacks->reloc_overflow) 3458 (info, (h ? &h->root : NULL), name, reloc_type_name, 3459 (bfd_vma) 0, input_bfd, input_section, 3460 rel->r_vaddr - input_section->vma); 3461 } 3462 3463 /* Add RELOCATION to the right bits of VALUE_TO_RELOCATE. */ 3464 value_to_relocate = ((value_to_relocate & ~howto.dst_mask) 3465 | (((value_to_relocate & howto.src_mask) 3466 + relocation) & howto.dst_mask)); 3467 3468 /* Put the value back in the object file. */ 3469 if (1 == howto.size) 3470 bfd_put_16 (input_bfd, value_to_relocate, location); 3471 else 3472 bfd_put_32 (input_bfd, value_to_relocate, location); 3473 } 3474 3475 return TRUE; 3476} 3477 3478static bfd_boolean 3479_bfd_xcoff_put_ldsymbol_name (bfd *abfd ATTRIBUTE_UNUSED, 3480 struct xcoff_loader_info *ldinfo, 3481 struct internal_ldsym *ldsym, 3482 const char *name) 3483{ 3484 size_t len; 3485 len = strlen (name); 3486 3487 if (len <= SYMNMLEN) 3488 strncpy (ldsym->_l._l_name, name, SYMNMLEN); 3489 else 3490 { 3491 if (ldinfo->string_size + len + 3 > ldinfo->string_alc) 3492 { 3493 bfd_size_type newalc; 3494 char *newstrings; 3495 3496 newalc = ldinfo->string_alc * 2; 3497 if (newalc == 0) 3498 newalc = 32; 3499 while (ldinfo->string_size + len + 3 > newalc) 3500 newalc *= 2; 3501 3502 newstrings = bfd_realloc (ldinfo->strings, newalc); 3503 if (newstrings == NULL) 3504 { 3505 ldinfo->failed = TRUE; 3506 return FALSE; 3507 } 3508 ldinfo->string_alc = newalc; 3509 ldinfo->strings = newstrings; 3510 } 3511 3512 bfd_put_16 (ldinfo->output_bfd, (bfd_vma) (len + 1), 3513 ldinfo->strings + ldinfo->string_size); 3514 strcpy (ldinfo->strings + ldinfo->string_size + 2, name); 3515 ldsym->_l._l_l._l_zeroes = 0; 3516 ldsym->_l._l_l._l_offset = ldinfo->string_size + 2; 3517 ldinfo->string_size += len + 3; 3518 } 3519 3520 return TRUE; 3521} 3522 3523static bfd_boolean 3524_bfd_xcoff_put_symbol_name (struct bfd_link_info *info, 3525 struct bfd_strtab_hash *strtab, 3526 struct internal_syment *sym, 3527 const char *name) 3528{ 3529 if (strlen (name) <= SYMNMLEN) 3530 { 3531 strncpy (sym->_n._n_name, name, SYMNMLEN); 3532 } 3533 else 3534 { 3535 bfd_boolean hash; 3536 bfd_size_type indx; 3537 3538 hash = !info->traditional_format; 3539 indx = _bfd_stringtab_add (strtab, name, hash, FALSE); 3540 if (indx == (bfd_size_type) -1) 3541 return FALSE; 3542 sym->_n._n_n._n_zeroes = 0; 3543 sym->_n._n_n._n_offset = STRING_SIZE_SIZE + indx; 3544 } 3545 return TRUE; 3546} 3547 3548static asection * 3549xcoff_create_csect_from_smclas (bfd *abfd, 3550 union internal_auxent *aux, 3551 const char *symbol_name) 3552{ 3553 asection *return_value = NULL; 3554 3555 /* .sv64 = x_smclas == 17 3556 This is an invalid csect for 32 bit apps. */ 3557 static const char * const names[] = 3558 { 3559 ".pr", ".ro", ".db", ".tc", ".ua", ".rw", ".gl", ".xo", /* 0 - 7 */ 3560 ".sv", ".bs", ".ds", ".uc", ".ti", ".tb", NULL, ".tc0", /* 8 - 15 */ 3561 ".td", NULL, ".sv3264", NULL, ".tl", ".ul", ".te" 3562 }; 3563 3564 if ((aux->x_csect.x_smclas < ARRAY_SIZE (names)) 3565 && (NULL != names[aux->x_csect.x_smclas])) 3566 { 3567 return_value = bfd_make_section_anyway 3568 (abfd, names[aux->x_csect.x_smclas]); 3569 } 3570 else 3571 { 3572 _bfd_error_handler 3573 /* xgettext: c-format */ 3574 (_("%B: symbol `%s' has unrecognized smclas %d"), 3575 abfd, symbol_name, aux->x_csect.x_smclas); 3576 bfd_set_error (bfd_error_bad_value); 3577 } 3578 3579 return return_value; 3580} 3581 3582static bfd_boolean 3583xcoff_is_lineno_count_overflow (bfd *abfd ATTRIBUTE_UNUSED, bfd_vma value) 3584{ 3585 if (0xffff <= value) 3586 return TRUE; 3587 3588 return FALSE; 3589} 3590 3591static bfd_boolean 3592xcoff_is_reloc_count_overflow (bfd *abfd ATTRIBUTE_UNUSED, bfd_vma value) 3593{ 3594 if (0xffff <= value) 3595 return TRUE; 3596 3597 return FALSE; 3598} 3599 3600static bfd_vma 3601xcoff_loader_symbol_offset (bfd *abfd, 3602 struct internal_ldhdr *ldhdr ATTRIBUTE_UNUSED) 3603{ 3604 return bfd_xcoff_ldhdrsz (abfd); 3605} 3606 3607static bfd_vma 3608xcoff_loader_reloc_offset (bfd *abfd, struct internal_ldhdr *ldhdr) 3609{ 3610 return bfd_xcoff_ldhdrsz (abfd) + ldhdr->l_nsyms * bfd_xcoff_ldsymsz (abfd); 3611} 3612 3613static bfd_boolean 3614xcoff_generate_rtinit (bfd *abfd, const char *init, const char *fini, 3615 bfd_boolean rtld) 3616{ 3617 bfd_byte filehdr_ext[FILHSZ]; 3618 bfd_byte scnhdr_ext[SCNHSZ]; 3619 bfd_byte syment_ext[SYMESZ * 10]; 3620 bfd_byte reloc_ext[RELSZ * 3]; 3621 bfd_byte *data_buffer; 3622 bfd_size_type data_buffer_size; 3623 bfd_byte *string_table = NULL, *st_tmp = NULL; 3624 bfd_size_type string_table_size; 3625 bfd_vma val; 3626 size_t initsz, finisz; 3627 struct internal_filehdr filehdr; 3628 struct internal_scnhdr scnhdr; 3629 struct internal_syment syment; 3630 union internal_auxent auxent; 3631 struct internal_reloc reloc; 3632 3633 char *data_name = ".data"; 3634 char *rtinit_name = "__rtinit"; 3635 char *rtld_name = "__rtld"; 3636 3637 if (! bfd_xcoff_rtinit_size (abfd)) 3638 return FALSE; 3639 3640 initsz = (init == NULL ? 0 : 1 + strlen (init)); 3641 finisz = (fini == NULL ? 0 : 1 + strlen (fini)); 3642 3643 /* file header */ 3644 memset (filehdr_ext, 0, FILHSZ); 3645 memset (&filehdr, 0, sizeof (struct internal_filehdr)); 3646 filehdr.f_magic = bfd_xcoff_magic_number (abfd); 3647 filehdr.f_nscns = 1; 3648 filehdr.f_timdat = 0; 3649 filehdr.f_nsyms = 0; /* at least 6, no more than 10 */ 3650 filehdr.f_symptr = 0; /* set below */ 3651 filehdr.f_opthdr = 0; 3652 filehdr.f_flags = 0; 3653 3654 /* section header */ 3655 memset (scnhdr_ext, 0, SCNHSZ); 3656 memset (&scnhdr, 0, sizeof (struct internal_scnhdr)); 3657 memcpy (scnhdr.s_name, data_name, strlen (data_name)); 3658 scnhdr.s_paddr = 0; 3659 scnhdr.s_vaddr = 0; 3660 scnhdr.s_size = 0; /* set below */ 3661 scnhdr.s_scnptr = FILHSZ + SCNHSZ; 3662 scnhdr.s_relptr = 0; /* set below */ 3663 scnhdr.s_lnnoptr = 0; 3664 scnhdr.s_nreloc = 0; /* either 1 or 2 */ 3665 scnhdr.s_nlnno = 0; 3666 scnhdr.s_flags = STYP_DATA; 3667 3668 /* .data 3669 0x0000 0x00000000 : rtl 3670 0x0004 0x00000010 : offset to init, or 0 3671 0x0008 0x00000028 : offset to fini, or 0 3672 0x000C 0x0000000C : size of descriptor 3673 0x0010 0x00000000 : init, needs a reloc 3674 0x0014 0x00000040 : offset to init name 3675 0x0018 0x00000000 : flags, padded to a word 3676 0x001C 0x00000000 : empty init 3677 0x0020 0x00000000 : 3678 0x0024 0x00000000 : 3679 0x0028 0x00000000 : fini, needs a reloc 3680 0x002C 0x00000??? : offset to fini name 3681 0x0030 0x00000000 : flags, padded to a word 3682 0x0034 0x00000000 : empty fini 3683 0x0038 0x00000000 : 3684 0x003C 0x00000000 : 3685 0x0040 init name 3686 0x0040 + initsz fini name */ 3687 3688 data_buffer_size = 0x0040 + initsz + finisz; 3689 data_buffer_size = (data_buffer_size + 7) &~ (bfd_size_type) 7; 3690 data_buffer = NULL; 3691 data_buffer = (bfd_byte *) bfd_zmalloc (data_buffer_size); 3692 if (data_buffer == NULL) 3693 return FALSE; 3694 3695 if (initsz) 3696 { 3697 val = 0x10; 3698 bfd_h_put_32 (abfd, val, &data_buffer[0x04]); 3699 val = 0x40; 3700 bfd_h_put_32 (abfd, val, &data_buffer[0x14]); 3701 memcpy (&data_buffer[val], init, initsz); 3702 } 3703 3704 if (finisz) 3705 { 3706 val = 0x28; 3707 bfd_h_put_32 (abfd, val, &data_buffer[0x08]); 3708 val = 0x40 + initsz; 3709 bfd_h_put_32 (abfd, val, &data_buffer[0x2C]); 3710 memcpy (&data_buffer[val], fini, finisz); 3711 } 3712 3713 val = 0x0C; 3714 bfd_h_put_32 (abfd, val, &data_buffer[0x0C]); 3715 3716 scnhdr.s_size = data_buffer_size; 3717 3718 /* string table */ 3719 string_table_size = 0; 3720 if (initsz > 9) 3721 string_table_size += initsz; 3722 if (finisz > 9) 3723 string_table_size += finisz; 3724 if (string_table_size) 3725 { 3726 string_table_size += 4; 3727 string_table = (bfd_byte *) bfd_zmalloc (string_table_size); 3728 if (string_table == NULL) 3729 return FALSE; 3730 3731 val = string_table_size; 3732 bfd_h_put_32 (abfd, val, &string_table[0]); 3733 st_tmp = string_table + 4; 3734 } 3735 3736 /* symbols 3737 0. .data csect 3738 2. __rtinit 3739 4. init function 3740 6. fini function 3741 8. __rtld */ 3742 memset (syment_ext, 0, 10 * SYMESZ); 3743 memset (reloc_ext, 0, 3 * RELSZ); 3744 3745 /* .data csect */ 3746 memset (&syment, 0, sizeof (struct internal_syment)); 3747 memset (&auxent, 0, sizeof (union internal_auxent)); 3748 memcpy (syment._n._n_name, data_name, strlen (data_name)); 3749 syment.n_scnum = 1; 3750 syment.n_sclass = C_HIDEXT; 3751 syment.n_numaux = 1; 3752 auxent.x_csect.x_scnlen.l = data_buffer_size; 3753 auxent.x_csect.x_smtyp = 3 << 3 | XTY_SD; 3754 auxent.x_csect.x_smclas = XMC_RW; 3755 bfd_coff_swap_sym_out (abfd, &syment, 3756 &syment_ext[filehdr.f_nsyms * SYMESZ]); 3757 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0, 3758 syment.n_numaux, 3759 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]); 3760 filehdr.f_nsyms += 2; 3761 3762 /* __rtinit */ 3763 memset (&syment, 0, sizeof (struct internal_syment)); 3764 memset (&auxent, 0, sizeof (union internal_auxent)); 3765 memcpy (syment._n._n_name, rtinit_name, strlen (rtinit_name)); 3766 syment.n_scnum = 1; 3767 syment.n_sclass = C_EXT; 3768 syment.n_numaux = 1; 3769 auxent.x_csect.x_smtyp = XTY_LD; 3770 auxent.x_csect.x_smclas = XMC_RW; 3771 bfd_coff_swap_sym_out (abfd, &syment, 3772 &syment_ext[filehdr.f_nsyms * SYMESZ]); 3773 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0, 3774 syment.n_numaux, 3775 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]); 3776 filehdr.f_nsyms += 2; 3777 3778 /* init */ 3779 if (initsz) 3780 { 3781 memset (&syment, 0, sizeof (struct internal_syment)); 3782 memset (&auxent, 0, sizeof (union internal_auxent)); 3783 3784 if (initsz > 9) 3785 { 3786 syment._n._n_n._n_offset = st_tmp - string_table; 3787 memcpy (st_tmp, init, initsz); 3788 st_tmp += initsz; 3789 } 3790 else 3791 memcpy (syment._n._n_name, init, initsz - 1); 3792 3793 syment.n_sclass = C_EXT; 3794 syment.n_numaux = 1; 3795 bfd_coff_swap_sym_out (abfd, &syment, 3796 &syment_ext[filehdr.f_nsyms * SYMESZ]); 3797 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0, 3798 syment.n_numaux, 3799 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]); 3800 3801 /* reloc */ 3802 memset (&reloc, 0, sizeof (struct internal_reloc)); 3803 reloc.r_vaddr = 0x0010; 3804 reloc.r_symndx = filehdr.f_nsyms; 3805 reloc.r_type = R_POS; 3806 reloc.r_size = 31; 3807 bfd_coff_swap_reloc_out (abfd, &reloc, &reloc_ext[0]); 3808 3809 filehdr.f_nsyms += 2; 3810 scnhdr.s_nreloc += 1; 3811 } 3812 3813 /* fini */ 3814 if (finisz) 3815 { 3816 memset (&syment, 0, sizeof (struct internal_syment)); 3817 memset (&auxent, 0, sizeof (union internal_auxent)); 3818 3819 if (finisz > 9) 3820 { 3821 syment._n._n_n._n_offset = st_tmp - string_table; 3822 memcpy (st_tmp, fini, finisz); 3823 st_tmp += finisz; 3824 } 3825 else 3826 memcpy (syment._n._n_name, fini, finisz - 1); 3827 3828 syment.n_sclass = C_EXT; 3829 syment.n_numaux = 1; 3830 bfd_coff_swap_sym_out (abfd, &syment, 3831 &syment_ext[filehdr.f_nsyms * SYMESZ]); 3832 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0, 3833 syment.n_numaux, 3834 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]); 3835 3836 /* reloc */ 3837 memset (&reloc, 0, sizeof (struct internal_reloc)); 3838 reloc.r_vaddr = 0x0028; 3839 reloc.r_symndx = filehdr.f_nsyms; 3840 reloc.r_type = R_POS; 3841 reloc.r_size = 31; 3842 bfd_coff_swap_reloc_out (abfd, &reloc, 3843 &reloc_ext[scnhdr.s_nreloc * RELSZ]); 3844 3845 filehdr.f_nsyms += 2; 3846 scnhdr.s_nreloc += 1; 3847 } 3848 3849 if (rtld) 3850 { 3851 memset (&syment, 0, sizeof (struct internal_syment)); 3852 memset (&auxent, 0, sizeof (union internal_auxent)); 3853 memcpy (syment._n._n_name, rtld_name, strlen (rtld_name)); 3854 syment.n_sclass = C_EXT; 3855 syment.n_numaux = 1; 3856 bfd_coff_swap_sym_out (abfd, &syment, 3857 &syment_ext[filehdr.f_nsyms * SYMESZ]); 3858 bfd_coff_swap_aux_out (abfd, &auxent, syment.n_type, syment.n_sclass, 0, 3859 syment.n_numaux, 3860 &syment_ext[(filehdr.f_nsyms + 1) * SYMESZ]); 3861 3862 /* reloc */ 3863 memset (&reloc, 0, sizeof (struct internal_reloc)); 3864 reloc.r_vaddr = 0x0000; 3865 reloc.r_symndx = filehdr.f_nsyms; 3866 reloc.r_type = R_POS; 3867 reloc.r_size = 31; 3868 bfd_coff_swap_reloc_out (abfd, &reloc, 3869 &reloc_ext[scnhdr.s_nreloc * RELSZ]); 3870 3871 filehdr.f_nsyms += 2; 3872 scnhdr.s_nreloc += 1; 3873 } 3874 3875 scnhdr.s_relptr = scnhdr.s_scnptr + data_buffer_size; 3876 filehdr.f_symptr = scnhdr.s_relptr + scnhdr.s_nreloc * RELSZ; 3877 3878 bfd_coff_swap_filehdr_out (abfd, &filehdr, filehdr_ext); 3879 bfd_bwrite (filehdr_ext, FILHSZ, abfd); 3880 bfd_coff_swap_scnhdr_out (abfd, &scnhdr, scnhdr_ext); 3881 bfd_bwrite (scnhdr_ext, SCNHSZ, abfd); 3882 bfd_bwrite (data_buffer, data_buffer_size, abfd); 3883 bfd_bwrite (reloc_ext, scnhdr.s_nreloc * RELSZ, abfd); 3884 bfd_bwrite (syment_ext, filehdr.f_nsyms * SYMESZ, abfd); 3885 bfd_bwrite (string_table, string_table_size, abfd); 3886 3887 free (data_buffer); 3888 data_buffer = NULL; 3889 3890 return TRUE; 3891} 3892 3893 3894static reloc_howto_type xcoff_dynamic_reloc = 3895HOWTO (0, /* type */ 3896 0, /* rightshift */ 3897 2, /* size (0 = byte, 1 = short, 2 = long) */ 3898 32, /* bitsize */ 3899 FALSE, /* pc_relative */ 3900 0, /* bitpos */ 3901 complain_overflow_bitfield, /* complain_on_overflow */ 3902 0, /* special_function */ 3903 "R_POS", /* name */ 3904 TRUE, /* partial_inplace */ 3905 0xffffffff, /* src_mask */ 3906 0xffffffff, /* dst_mask */ 3907 FALSE); /* pcrel_offset */ 3908 3909/* glink 3910 3911 The first word of global linkage code must be modified by filling in 3912 the correct TOC offset. */ 3913 3914static unsigned long xcoff_glink_code[9] = 3915 { 3916 0x81820000, /* lwz r12,0(r2) */ 3917 0x90410014, /* stw r2,20(r1) */ 3918 0x800c0000, /* lwz r0,0(r12) */ 3919 0x804c0004, /* lwz r2,4(r12) */ 3920 0x7c0903a6, /* mtctr r0 */ 3921 0x4e800420, /* bctr */ 3922 0x00000000, /* start of traceback table */ 3923 0x000c8000, /* traceback table */ 3924 0x00000000, /* traceback table */ 3925 }; 3926 3927/* Table to convert DWARF flags to section names. */ 3928 3929const struct xcoff_dwsect_name xcoff_dwsect_names[] = { 3930 { SSUBTYP_DWINFO, ".dwinfo", TRUE }, 3931 { SSUBTYP_DWLINE, ".dwline", TRUE }, 3932 { SSUBTYP_DWPBNMS, ".dwpbnms", TRUE }, 3933 { SSUBTYP_DWPBTYP, ".dwpbtyp", TRUE }, 3934 { SSUBTYP_DWARNGE, ".dwarnge", TRUE }, 3935 { SSUBTYP_DWABREV, ".dwabrev", FALSE }, 3936 { SSUBTYP_DWSTR, ".dwstr", TRUE }, 3937 { SSUBTYP_DWRNGES, ".dwrnges", TRUE } 3938}; 3939 3940/* For generic entry points. */ 3941#define _bfd_xcoff_close_and_cleanup _bfd_archive_close_and_cleanup 3942#define _bfd_xcoff_bfd_free_cached_info bfd_true 3943#define _bfd_xcoff_new_section_hook coff_new_section_hook 3944#define _bfd_xcoff_get_section_contents _bfd_generic_get_section_contents 3945#define _bfd_xcoff_get_section_contents_in_window \ 3946 _bfd_generic_get_section_contents_in_window 3947 3948/* For copy private data entry points. */ 3949#define _bfd_xcoff_bfd_copy_private_bfd_data \ 3950 _bfd_xcoff_copy_private_bfd_data 3951#define _bfd_xcoff_bfd_merge_private_bfd_data \ 3952 _bfd_generic_bfd_merge_private_bfd_data 3953#define _bfd_xcoff_bfd_copy_private_section_data \ 3954 _bfd_generic_bfd_copy_private_section_data 3955#define _bfd_xcoff_bfd_copy_private_symbol_data \ 3956 _bfd_generic_bfd_copy_private_symbol_data 3957#define _bfd_xcoff_bfd_copy_private_header_data \ 3958 _bfd_generic_bfd_copy_private_header_data 3959#define _bfd_xcoff_bfd_set_private_flags \ 3960 _bfd_generic_bfd_set_private_flags 3961#define _bfd_xcoff_bfd_print_private_bfd_data \ 3962 _bfd_generic_bfd_print_private_bfd_data 3963 3964/* For archive entry points. */ 3965#define _bfd_xcoff_slurp_extended_name_table \ 3966 _bfd_noarchive_slurp_extended_name_table 3967#define _bfd_xcoff_construct_extended_name_table \ 3968 _bfd_noarchive_construct_extended_name_table 3969#define _bfd_xcoff_truncate_arname bfd_dont_truncate_arname 3970#define _bfd_xcoff_write_ar_hdr _bfd_generic_write_ar_hdr 3971#define _bfd_xcoff_get_elt_at_index _bfd_generic_get_elt_at_index 3972#define _bfd_xcoff_generic_stat_arch_elt _bfd_xcoff_stat_arch_elt 3973#define _bfd_xcoff_update_armap_timestamp bfd_true 3974 3975/* For symbols entry points. */ 3976#define _bfd_xcoff_get_symtab_upper_bound coff_get_symtab_upper_bound 3977#define _bfd_xcoff_canonicalize_symtab coff_canonicalize_symtab 3978#define _bfd_xcoff_make_empty_symbol coff_make_empty_symbol 3979#define _bfd_xcoff_print_symbol coff_print_symbol 3980#define _bfd_xcoff_get_symbol_info coff_get_symbol_info 3981#define _bfd_xcoff_get_symbol_version_string \ 3982 _bfd_nosymbols_get_symbol_version_string 3983#define _bfd_xcoff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name 3984#define _bfd_xcoff_bfd_is_target_special_symbol \ 3985 coff_bfd_is_target_special_symbol 3986#define _bfd_xcoff_get_lineno coff_get_lineno 3987#define _bfd_xcoff_find_nearest_line coff_find_nearest_line 3988#define _bfd_xcoff_find_line coff_find_line 3989#define _bfd_xcoff_find_inliner_info coff_find_inliner_info 3990#define _bfd_xcoff_bfd_make_debug_symbol coff_bfd_make_debug_symbol 3991#define _bfd_xcoff_read_minisymbols _bfd_generic_read_minisymbols 3992#define _bfd_xcoff_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol 3993 3994/* For reloc entry points. */ 3995#define _bfd_xcoff_get_reloc_upper_bound coff_get_reloc_upper_bound 3996#define _bfd_xcoff_canonicalize_reloc coff_canonicalize_reloc 3997#define _bfd_xcoff_bfd_reloc_type_lookup _bfd_xcoff_reloc_type_lookup 3998#define _bfd_xcoff_bfd_reloc_name_lookup _bfd_xcoff_reloc_name_lookup 3999 4000/* For link entry points. */ 4001#define _bfd_xcoff_bfd_get_relocated_section_contents \ 4002 bfd_generic_get_relocated_section_contents 4003#define _bfd_xcoff_bfd_relax_section bfd_generic_relax_section 4004#define _bfd_xcoff_bfd_link_hash_table_free _bfd_generic_link_hash_table_free 4005#define _bfd_xcoff_bfd_link_just_syms _bfd_generic_link_just_syms 4006#define _bfd_xcoff_bfd_copy_link_hash_symbol_type \ 4007 _bfd_generic_copy_link_hash_symbol_type 4008#define _bfd_xcoff_bfd_link_split_section _bfd_generic_link_split_section 4009#define _bfd_xcoff_bfd_gc_sections bfd_generic_gc_sections 4010#define _bfd_xcoff_bfd_lookup_section_flags bfd_generic_lookup_section_flags 4011#define _bfd_xcoff_bfd_merge_sections bfd_generic_merge_sections 4012#define _bfd_xcoff_bfd_is_group_section bfd_generic_is_group_section 4013#define _bfd_xcoff_bfd_discard_group bfd_generic_discard_group 4014#define _bfd_xcoff_section_already_linked _bfd_generic_section_already_linked 4015#define _bfd_xcoff_bfd_define_common_symbol _bfd_xcoff_define_common_symbol 4016#define _bfd_xcoff_bfd_link_check_relocs _bfd_generic_link_check_relocs 4017 4018/* For dynamic symbols and relocs entry points. */ 4019#define _bfd_xcoff_get_synthetic_symtab _bfd_nodynamic_get_synthetic_symtab 4020 4021static const struct xcoff_backend_data_rec bfd_xcoff_backend_data = 4022 { 4023 { /* COFF backend, defined in libcoff.h. */ 4024 _bfd_xcoff_swap_aux_in, 4025 _bfd_xcoff_swap_sym_in, 4026 coff_swap_lineno_in, 4027 _bfd_xcoff_swap_aux_out, 4028 _bfd_xcoff_swap_sym_out, 4029 coff_swap_lineno_out, 4030 xcoff_swap_reloc_out, 4031 coff_swap_filehdr_out, 4032 coff_swap_aouthdr_out, 4033 coff_swap_scnhdr_out, 4034 FILHSZ, 4035 AOUTSZ, 4036 SCNHSZ, 4037 SYMESZ, 4038 AUXESZ, 4039 RELSZ, 4040 LINESZ, 4041 FILNMLEN, 4042 TRUE, /* _bfd_coff_long_filenames */ 4043 XCOFF_NO_LONG_SECTION_NAMES, /* _bfd_coff_long_section_names */ 4044 3, /* _bfd_coff_default_section_alignment_power */ 4045 FALSE, /* _bfd_coff_force_symnames_in_strings */ 4046 2, /* _bfd_coff_debug_string_prefix_length */ 4047 32768, /* _bfd_coff_max_nscns */ 4048 coff_swap_filehdr_in, 4049 coff_swap_aouthdr_in, 4050 coff_swap_scnhdr_in, 4051 xcoff_swap_reloc_in, 4052 coff_bad_format_hook, 4053 coff_set_arch_mach_hook, 4054 coff_mkobject_hook, 4055 styp_to_sec_flags, 4056 coff_set_alignment_hook, 4057 coff_slurp_symbol_table, 4058 symname_in_debug_hook, 4059 coff_pointerize_aux_hook, 4060 coff_print_aux, 4061 dummy_reloc16_extra_cases, 4062 dummy_reloc16_estimate, 4063 NULL, /* bfd_coff_sym_is_global */ 4064 coff_compute_section_file_positions, 4065 NULL, /* _bfd_coff_start_final_link */ 4066 xcoff_ppc_relocate_section, 4067 coff_rtype_to_howto, 4068 NULL, /* _bfd_coff_adjust_symndx */ 4069 _bfd_generic_link_add_one_symbol, 4070 coff_link_output_has_begun, 4071 coff_final_link_postscript, 4072 NULL /* print_pdata. */ 4073 }, 4074 4075 0x01DF, /* magic number */ 4076 bfd_arch_rs6000, 4077 bfd_mach_rs6k, 4078 4079 /* Function pointers to xcoff specific swap routines. */ 4080 xcoff_swap_ldhdr_in, 4081 xcoff_swap_ldhdr_out, 4082 xcoff_swap_ldsym_in, 4083 xcoff_swap_ldsym_out, 4084 xcoff_swap_ldrel_in, 4085 xcoff_swap_ldrel_out, 4086 4087 /* Sizes. */ 4088 LDHDRSZ, 4089 LDSYMSZ, 4090 LDRELSZ, 4091 12, /* _xcoff_function_descriptor_size */ 4092 SMALL_AOUTSZ, 4093 4094 /* Versions. */ 4095 1, /* _xcoff_ldhdr_version */ 4096 4097 _bfd_xcoff_put_symbol_name, 4098 _bfd_xcoff_put_ldsymbol_name, 4099 &xcoff_dynamic_reloc, 4100 xcoff_create_csect_from_smclas, 4101 4102 /* Lineno and reloc count overflow. */ 4103 xcoff_is_lineno_count_overflow, 4104 xcoff_is_reloc_count_overflow, 4105 4106 xcoff_loader_symbol_offset, 4107 xcoff_loader_reloc_offset, 4108 4109 /* glink. */ 4110 &xcoff_glink_code[0], 4111 36, /* _xcoff_glink_size */ 4112 4113 /* rtinit */ 4114 64, /* _xcoff_rtinit_size */ 4115 xcoff_generate_rtinit, 4116 }; 4117 4118/* The transfer vector that leads the outside world to all of the above. */ 4119const bfd_target rs6000_xcoff_vec = 4120 { 4121 "aixcoff-rs6000", 4122 bfd_target_xcoff_flavour, 4123 BFD_ENDIAN_BIG, /* data byte order is big */ 4124 BFD_ENDIAN_BIG, /* header byte order is big */ 4125 4126 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC 4127 | HAS_SYMS | HAS_LOCALS | WP_TEXT), 4128 4129 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA, 4130 0, /* leading char */ 4131 '/', /* ar_pad_char */ 4132 15, /* ar_max_namelen */ 4133 0, /* match priority. */ 4134 4135 /* data */ 4136 bfd_getb64, 4137 bfd_getb_signed_64, 4138 bfd_putb64, 4139 bfd_getb32, 4140 bfd_getb_signed_32, 4141 bfd_putb32, 4142 bfd_getb16, 4143 bfd_getb_signed_16, 4144 bfd_putb16, 4145 4146 /* hdrs */ 4147 bfd_getb64, 4148 bfd_getb_signed_64, 4149 bfd_putb64, 4150 bfd_getb32, 4151 bfd_getb_signed_32, 4152 bfd_putb32, 4153 bfd_getb16, 4154 bfd_getb_signed_16, 4155 bfd_putb16, 4156 4157 { /* bfd_check_format */ 4158 _bfd_dummy_target, 4159 coff_object_p, 4160 _bfd_xcoff_archive_p, 4161 CORE_FILE_P 4162 }, 4163 4164 { /* bfd_set_format */ 4165 bfd_false, 4166 coff_mkobject, 4167 _bfd_generic_mkarchive, 4168 bfd_false 4169 }, 4170 4171 {/* bfd_write_contents */ 4172 bfd_false, 4173 coff_write_object_contents, 4174 _bfd_xcoff_write_archive_contents, 4175 bfd_false 4176 }, 4177 4178 BFD_JUMP_TABLE_GENERIC (_bfd_xcoff), 4179 BFD_JUMP_TABLE_COPY (_bfd_xcoff), 4180 BFD_JUMP_TABLE_CORE (coff), 4181 BFD_JUMP_TABLE_ARCHIVE (_bfd_xcoff), 4182 BFD_JUMP_TABLE_SYMBOLS (_bfd_xcoff), 4183 BFD_JUMP_TABLE_RELOCS (_bfd_xcoff), 4184 BFD_JUMP_TABLE_WRITE (coff), 4185 BFD_JUMP_TABLE_LINK (_bfd_xcoff), 4186 BFD_JUMP_TABLE_DYNAMIC (_bfd_xcoff), 4187 4188 /* Opposite endian version, none exists */ 4189 NULL, 4190 4191 & bfd_xcoff_backend_data, 4192 }; 4193 4194/* xcoff-powermac target 4195 Old target. 4196 Only difference between this target and the rs6000 target is the 4197 the default architecture and machine type used in coffcode.h 4198 4199 PowerPC Macs use the same magic numbers as RS/6000 4200 (because that's how they were bootstrapped originally), 4201 but they are always PowerPC architecture. */ 4202static const struct xcoff_backend_data_rec bfd_pmac_xcoff_backend_data = 4203 { 4204 { /* COFF backend, defined in libcoff.h. */ 4205 _bfd_xcoff_swap_aux_in, 4206 _bfd_xcoff_swap_sym_in, 4207 coff_swap_lineno_in, 4208 _bfd_xcoff_swap_aux_out, 4209 _bfd_xcoff_swap_sym_out, 4210 coff_swap_lineno_out, 4211 xcoff_swap_reloc_out, 4212 coff_swap_filehdr_out, 4213 coff_swap_aouthdr_out, 4214 coff_swap_scnhdr_out, 4215 FILHSZ, 4216 AOUTSZ, 4217 SCNHSZ, 4218 SYMESZ, 4219 AUXESZ, 4220 RELSZ, 4221 LINESZ, 4222 FILNMLEN, 4223 TRUE, /* _bfd_coff_long_filenames */ 4224 XCOFF_NO_LONG_SECTION_NAMES, /* _bfd_coff_long_section_names */ 4225 3, /* _bfd_coff_default_section_alignment_power */ 4226 FALSE, /* _bfd_coff_force_symnames_in_strings */ 4227 2, /* _bfd_coff_debug_string_prefix_length */ 4228 32768, /* _bfd_coff_max_nscns */ 4229 coff_swap_filehdr_in, 4230 coff_swap_aouthdr_in, 4231 coff_swap_scnhdr_in, 4232 xcoff_swap_reloc_in, 4233 coff_bad_format_hook, 4234 coff_set_arch_mach_hook, 4235 coff_mkobject_hook, 4236 styp_to_sec_flags, 4237 coff_set_alignment_hook, 4238 coff_slurp_symbol_table, 4239 symname_in_debug_hook, 4240 coff_pointerize_aux_hook, 4241 coff_print_aux, 4242 dummy_reloc16_extra_cases, 4243 dummy_reloc16_estimate, 4244 NULL, /* bfd_coff_sym_is_global */ 4245 coff_compute_section_file_positions, 4246 NULL, /* _bfd_coff_start_final_link */ 4247 xcoff_ppc_relocate_section, 4248 coff_rtype_to_howto, 4249 NULL, /* _bfd_coff_adjust_symndx */ 4250 _bfd_generic_link_add_one_symbol, 4251 coff_link_output_has_begun, 4252 coff_final_link_postscript, 4253 NULL /* print_pdata. */ 4254 }, 4255 4256 0x01DF, /* magic number */ 4257 bfd_arch_powerpc, 4258 bfd_mach_ppc, 4259 4260 /* Function pointers to xcoff specific swap routines. */ 4261 xcoff_swap_ldhdr_in, 4262 xcoff_swap_ldhdr_out, 4263 xcoff_swap_ldsym_in, 4264 xcoff_swap_ldsym_out, 4265 xcoff_swap_ldrel_in, 4266 xcoff_swap_ldrel_out, 4267 4268 /* Sizes. */ 4269 LDHDRSZ, 4270 LDSYMSZ, 4271 LDRELSZ, 4272 12, /* _xcoff_function_descriptor_size */ 4273 SMALL_AOUTSZ, 4274 4275 /* Versions. */ 4276 1, /* _xcoff_ldhdr_version */ 4277 4278 _bfd_xcoff_put_symbol_name, 4279 _bfd_xcoff_put_ldsymbol_name, 4280 &xcoff_dynamic_reloc, 4281 xcoff_create_csect_from_smclas, 4282 4283 /* Lineno and reloc count overflow. */ 4284 xcoff_is_lineno_count_overflow, 4285 xcoff_is_reloc_count_overflow, 4286 4287 xcoff_loader_symbol_offset, 4288 xcoff_loader_reloc_offset, 4289 4290 /* glink. */ 4291 &xcoff_glink_code[0], 4292 36, /* _xcoff_glink_size */ 4293 4294 /* rtinit */ 4295 0, /* _xcoff_rtinit_size */ 4296 xcoff_generate_rtinit, 4297 }; 4298 4299/* The transfer vector that leads the outside world to all of the above. */ 4300const bfd_target powerpc_xcoff_vec = 4301 { 4302 "xcoff-powermac", 4303 bfd_target_xcoff_flavour, 4304 BFD_ENDIAN_BIG, /* data byte order is big */ 4305 BFD_ENDIAN_BIG, /* header byte order is big */ 4306 4307 (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | DYNAMIC 4308 | HAS_SYMS | HAS_LOCALS | WP_TEXT), 4309 4310 SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_CODE | SEC_DATA, 4311 0, /* leading char */ 4312 '/', /* ar_pad_char */ 4313 15, /* ar_max_namelen */ 4314 0, /* match priority. */ 4315 4316 /* data */ 4317 bfd_getb64, 4318 bfd_getb_signed_64, 4319 bfd_putb64, 4320 bfd_getb32, 4321 bfd_getb_signed_32, 4322 bfd_putb32, 4323 bfd_getb16, 4324 bfd_getb_signed_16, 4325 bfd_putb16, 4326 4327 /* hdrs */ 4328 bfd_getb64, 4329 bfd_getb_signed_64, 4330 bfd_putb64, 4331 bfd_getb32, 4332 bfd_getb_signed_32, 4333 bfd_putb32, 4334 bfd_getb16, 4335 bfd_getb_signed_16, 4336 bfd_putb16, 4337 4338 { /* bfd_check_format */ 4339 _bfd_dummy_target, 4340 coff_object_p, 4341 _bfd_xcoff_archive_p, 4342 CORE_FILE_P 4343 }, 4344 4345 { /* bfd_set_format */ 4346 bfd_false, 4347 coff_mkobject, 4348 _bfd_generic_mkarchive, 4349 bfd_false 4350 }, 4351 4352 {/* bfd_write_contents */ 4353 bfd_false, 4354 coff_write_object_contents, 4355 _bfd_xcoff_write_archive_contents, 4356 bfd_false 4357 }, 4358 4359 BFD_JUMP_TABLE_GENERIC (_bfd_xcoff), 4360 BFD_JUMP_TABLE_COPY (_bfd_xcoff), 4361 BFD_JUMP_TABLE_CORE (coff), 4362 BFD_JUMP_TABLE_ARCHIVE (_bfd_xcoff), 4363 BFD_JUMP_TABLE_SYMBOLS (_bfd_xcoff), 4364 BFD_JUMP_TABLE_RELOCS (_bfd_xcoff), 4365 BFD_JUMP_TABLE_WRITE (coff), 4366 BFD_JUMP_TABLE_LINK (_bfd_xcoff), 4367 BFD_JUMP_TABLE_DYNAMIC (_bfd_xcoff), 4368 4369 /* Opposite endian version, none exists */ 4370 NULL, 4371 4372 & bfd_pmac_xcoff_backend_data, 4373 }; 4374