1/* BFD back-end for PowerPC Microsoft Portable Executable files. 2 Copyright (C) 1990-2017 Free Software Foundation, Inc. 3 4 Original version pieced together by Kim Knuttila (krk@cygnus.com) 5 6 There is nothing new under the sun. This file draws a lot on other 7 coff files, in particular, those for the rs/6000, alpha, mips, and 8 intel backends, and the PE work for the arm. 9 10 This file is part of BFD, the Binary File Descriptor library. 11 12 This program is free software; you can redistribute it and/or modify 13 it under the terms of the GNU General Public License as published by 14 the Free Software Foundation; either version 3 of the License, or 15 (at your option) any later version. 16 17 This program is distributed in the hope that it will be useful, 18 but WITHOUT ANY WARRANTY; without even the implied warranty of 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 GNU General Public License for more details. 21 22 You should have received a copy of the GNU General Public License 23 along with this program; if not, write to the Free Software 24 Foundation, 51 Franklin Street - Fifth Floor, 25 Boston, MA 02110-1301, USA. */ 26 27/* Current State: 28 - objdump works 29 - relocs generated by gas 30 - ld will link files, but they do not run. 31 - dlltool will not produce correct output in some .reloc cases, and will 32 not produce the right glue code for dll function calls. */ 33 34#include "sysdep.h" 35#include "bfd.h" 36#include "libbfd.h" 37 38#include "coff/powerpc.h" 39#include "coff/internal.h" 40 41#include "coff/pe.h" 42 43#ifdef BADMAG 44#undef BADMAG 45#endif 46 47#define BADMAG(x) PPCBADMAG(x) 48 49#include "libcoff.h" 50 51/* This file is compiled more than once, but we only compile the 52 final_link routine once. */ 53extern bfd_boolean ppc_bfd_coff_final_link (bfd *, struct bfd_link_info *); 54extern void dump_toc (void *); 55 56/* The toc is a set of bfd_vma fields. We use the fact that valid 57 addresses are even (i.e. the bit representing "1" is off) to allow 58 us to encode a little extra information in the field 59 - Unallocated addresses are initialized to 1. 60 - Allocated addresses are even numbers. 61 The first time we actually write a reference to the toc in the bfd, 62 we want to record that fact in a fixup file (if it is asked for), so 63 we keep track of whether or not an address has been written by marking 64 the low order bit with a "1" upon writing. */ 65 66#define SET_UNALLOCATED(x) ((x) = 1) 67#define IS_UNALLOCATED(x) ((x) == 1) 68 69#define IS_WRITTEN(x) ((x) & 1) 70#define MARK_AS_WRITTEN(x) ((x) |= 1) 71#define MAKE_ADDR_AGAIN(x) ((x) &= ~1) 72 73/* Turn on this check if you suspect something amiss in the hash tables. */ 74#ifdef DEBUG_HASH 75 76/* Need a 7 char string for an eye catcher. */ 77#define EYE "krkjunk" 78 79#define HASH_CHECK_DCL char eye_catcher[8]; 80#define HASH_CHECK_INIT(ret) strcpy(ret->eye_catcher, EYE) 81#define HASH_CHECK(addr) \ 82 if (strcmp (addr->eye_catcher, EYE) != 0) \ 83 { \ 84 fprintf (stderr,\ 85 /* xgettext: c-format */ \ 86 _("File %s, line %d, Hash check failure, bad eye %8s\n"), \ 87 __FILE__, __LINE__, addr->eye_catcher); \ 88 abort (); \ 89 } 90 91#else 92 93#define HASH_CHECK_DCL 94#define HASH_CHECK_INIT(ret) 95#define HASH_CHECK(addr) 96 97#endif 98 99/* In order not to add an int to every hash table item for every coff 100 linker, we define our own hash table, derived from the coff one. */ 101 102/* PE linker hash table entries. */ 103 104struct ppc_coff_link_hash_entry 105{ 106 struct coff_link_hash_entry root; /* First entry, as required. */ 107 108 /* As we wonder around the relocs, we'll keep the assigned toc_offset 109 here. */ 110 bfd_vma toc_offset; /* Our addition, as required. */ 111 int symbol_is_glue; 112 unsigned long int glue_insn; 113 114 HASH_CHECK_DCL 115}; 116 117/* PE linker hash table. */ 118 119struct ppc_coff_link_hash_table 120{ 121 struct coff_link_hash_table root; /* First entry, as required. */ 122}; 123 124/* Routine to create an entry in the link hash table. */ 125 126static struct bfd_hash_entry * 127ppc_coff_link_hash_newfunc (struct bfd_hash_entry * entry, 128 struct bfd_hash_table * table, 129 const char * string) 130{ 131 struct ppc_coff_link_hash_entry *ret = 132 (struct ppc_coff_link_hash_entry *) entry; 133 134 /* Allocate the structure if it has not already been allocated by a 135 subclass. */ 136 if (ret == (struct ppc_coff_link_hash_entry *) NULL) 137 ret = (struct ppc_coff_link_hash_entry *) 138 bfd_hash_allocate (table, 139 sizeof (struct ppc_coff_link_hash_entry)); 140 141 if (ret == (struct ppc_coff_link_hash_entry *) NULL) 142 return NULL; 143 144 /* Call the allocation method of the superclass. */ 145 ret = ((struct ppc_coff_link_hash_entry *) 146 _bfd_coff_link_hash_newfunc ((struct bfd_hash_entry *) ret, 147 table, string)); 148 149 if (ret) 150 { 151 /* Initialize the local fields. */ 152 SET_UNALLOCATED (ret->toc_offset); 153 ret->symbol_is_glue = 0; 154 ret->glue_insn = 0; 155 156 HASH_CHECK_INIT (ret); 157 } 158 159 return (struct bfd_hash_entry *) ret; 160} 161 162/* Initialize a PE linker hash table. */ 163 164static bfd_boolean 165ppc_coff_link_hash_table_init (struct ppc_coff_link_hash_table *table, 166 bfd *abfd, 167 struct bfd_hash_entry *(*newfunc) 168 (struct bfd_hash_entry *, 169 struct bfd_hash_table *, 170 const char *), 171 unsigned int entsize) 172{ 173 return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc, entsize); 174} 175 176/* Create a PE linker hash table. */ 177 178static struct bfd_link_hash_table * 179ppc_coff_link_hash_table_create (bfd *abfd) 180{ 181 struct ppc_coff_link_hash_table *ret; 182 bfd_size_type amt = sizeof (struct ppc_coff_link_hash_table); 183 184 ret = (struct ppc_coff_link_hash_table *) bfd_malloc (amt); 185 if (ret == NULL) 186 return NULL; 187 if (!ppc_coff_link_hash_table_init (ret, abfd, 188 ppc_coff_link_hash_newfunc, 189 sizeof (struct ppc_coff_link_hash_entry))) 190 { 191 free (ret); 192 return (struct bfd_link_hash_table *) NULL; 193 } 194 return &ret->root.root; 195} 196 197/* Now, tailor coffcode.h to use our hash stuff. */ 198 199#define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create 200 201/* The nt loader points the toc register to &toc + 32768, in order to 202 use the complete range of a 16-bit displacement. We have to adjust 203 for this when we fix up loads displaced off the toc reg. */ 204#define TOC_LOAD_ADJUSTMENT (-32768) 205#define TOC_SECTION_NAME ".private.toc" 206 207/* The main body of code is in coffcode.h. */ 208 209#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) 210 211/* In case we're on a 32-bit machine, construct a 64-bit "-1" value 212 from smaller values. Start with zero, widen, *then* decrement. */ 213#define MINUS_ONE (((bfd_vma)0) - 1) 214 215/* These should definitely go in a header file somewhere... */ 216 217/* NOP */ 218#define IMAGE_REL_PPC_ABSOLUTE 0x0000 219 220/* 64-bit address */ 221#define IMAGE_REL_PPC_ADDR64 0x0001 222 223/* 32-bit address */ 224#define IMAGE_REL_PPC_ADDR32 0x0002 225 226/* 26-bit address, shifted left 2 (branch absolute) */ 227#define IMAGE_REL_PPC_ADDR24 0x0003 228 229/* 16-bit address */ 230#define IMAGE_REL_PPC_ADDR16 0x0004 231 232/* 16-bit address, shifted left 2 (load doubleword) */ 233#define IMAGE_REL_PPC_ADDR14 0x0005 234 235/* 26-bit PC-relative offset, shifted left 2 (branch relative) */ 236#define IMAGE_REL_PPC_REL24 0x0006 237 238/* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ 239#define IMAGE_REL_PPC_REL14 0x0007 240 241/* 16-bit offset from TOC base */ 242#define IMAGE_REL_PPC_TOCREL16 0x0008 243 244/* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ 245#define IMAGE_REL_PPC_TOCREL14 0x0009 246 247/* 32-bit addr w/o image base */ 248#define IMAGE_REL_PPC_ADDR32NB 0x000A 249 250/* va of containing section (as in an image sectionhdr) */ 251#define IMAGE_REL_PPC_SECREL 0x000B 252 253/* sectionheader number */ 254#define IMAGE_REL_PPC_SECTION 0x000C 255 256/* substitute TOC restore instruction iff symbol is glue code */ 257#define IMAGE_REL_PPC_IFGLUE 0x000D 258 259/* symbol is glue code; virtual address is TOC restore instruction */ 260#define IMAGE_REL_PPC_IMGLUE 0x000E 261 262/* va of containing section (limited to 16 bits) */ 263#define IMAGE_REL_PPC_SECREL16 0x000F 264 265/* Stuff to handle immediate data when the number of bits in the 266 data is greater than the number of bits in the immediate field 267 We need to do (usually) 32 bit arithmetic on 16 bit chunks. */ 268#define IMAGE_REL_PPC_REFHI 0x0010 269#define IMAGE_REL_PPC_REFLO 0x0011 270#define IMAGE_REL_PPC_PAIR 0x0012 271 272/* This is essentially the same as tocrel16, with TOCDEFN assumed. */ 273#define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 274 275/* Flag bits in IMAGE_RELOCATION.TYPE. */ 276 277/* Subtract reloc value rather than adding it. */ 278#define IMAGE_REL_PPC_NEG 0x0100 279 280/* Fix branch prediction bit to predict branch taken. */ 281#define IMAGE_REL_PPC_BRTAKEN 0x0200 282 283/* Fix branch prediction bit to predict branch not taken. */ 284#define IMAGE_REL_PPC_BRNTAKEN 0x0400 285 286/* TOC slot defined in file (or, data in toc). */ 287#define IMAGE_REL_PPC_TOCDEFN 0x0800 288 289/* Masks to isolate above values in IMAGE_RELOCATION.Type. */ 290#define IMAGE_REL_PPC_TYPEMASK 0x00FF 291#define IMAGE_REL_PPC_FLAGMASK 0x0F00 292 293#define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK) 294#define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK) 295#define EXTRACT_JUNK(x) \ 296 ((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK)) 297 298/* Static helper functions to make relocation work. */ 299/* (Work In Progress) */ 300 301static bfd_reloc_status_type ppc_refhi_reloc 302 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 303static bfd_reloc_status_type ppc_pair_reloc 304 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 305static bfd_reloc_status_type ppc_toc16_reloc 306 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 307static bfd_reloc_status_type ppc_section_reloc 308 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 309static bfd_reloc_status_type ppc_secrel_reloc 310 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 311static bfd_reloc_status_type ppc_imglue_reloc 312 (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); 313 314/* FIXME: It'll take a while to get through all of these. I only need a few to 315 get us started, so those I'll make sure work. Those marked FIXME are either 316 completely unverified or have a specific unknown marked in the comment. */ 317 318/* Relocation entries for Windows/NT on PowerPC. 319 320 From the document "" we find the following listed as used relocs: 321 322 ABSOLUTE : The noop 323 ADDR[64|32|16] : fields that hold addresses in data fields or the 324 16 bit displacement field on a load/store. 325 ADDR[24|14] : fields that hold addresses in branch and cond 326 branches. These represent [26|16] bit addresses. 327 The low order 2 bits are preserved. 328 REL[24|14] : branches relative to the Instruction Address 329 register. These represent [26|16] bit addresses, 330 as before. The instruction field will be zero, and 331 the address of the SYM will be inserted at link time. 332 TOCREL16 : 16 bit displacement field referring to a slot in 333 toc. 334 TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14. 335 ADDR32NB : 32 bit address relative to the virtual origin. 336 (On the alpha, this is always a linker generated thunk) 337 (i.e. 32bit addr relative to the image base) 338 SECREL : The value is relative to the start of the section 339 containing the symbol. 340 SECTION : access to the header containing the item. Supports the 341 codeview debugger. 342 343 In particular, note that the document does not indicate that the 344 relocations listed in the header file are used. */ 345 346 347static reloc_howto_type ppc_coff_howto_table[] = 348{ 349 /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */ 350 /* Unused: */ 351 HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */ 352 0, /* rightshift */ 353 0, /* size (0 = byte, 1 = short, 2 = long) */ 354 0, /* bitsize */ 355 FALSE, /* pc_relative */ 356 0, /* bitpos */ 357 complain_overflow_dont, /* dont complain_on_overflow */ 358 0, /* special_function */ 359 "ABSOLUTE", /* name */ 360 FALSE, /* partial_inplace */ 361 0x00, /* src_mask */ 362 0x00, /* dst_mask */ 363 FALSE), /* pcrel_offset */ 364 365 /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */ 366 /* Unused: */ 367 HOWTO(IMAGE_REL_PPC_ADDR64, /* type */ 368 0, /* rightshift */ 369 3, /* size (0 = byte, 1 = short, 2 = long) */ 370 64, /* bitsize */ 371 FALSE, /* pc_relative */ 372 0, /* bitpos */ 373 complain_overflow_bitfield, /* complain_on_overflow */ 374 0, /* special_function */ 375 "ADDR64", /* name */ 376 TRUE, /* partial_inplace */ 377 MINUS_ONE, /* src_mask */ 378 MINUS_ONE, /* dst_mask */ 379 FALSE), /* pcrel_offset */ 380 381 /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */ 382 /* Used: */ 383 HOWTO (IMAGE_REL_PPC_ADDR32, /* type */ 384 0, /* rightshift */ 385 2, /* size (0 = byte, 1 = short, 2 = long) */ 386 32, /* bitsize */ 387 FALSE, /* pc_relative */ 388 0, /* bitpos */ 389 complain_overflow_bitfield, /* complain_on_overflow */ 390 0, /* special_function */ 391 "ADDR32", /* name */ 392 TRUE, /* partial_inplace */ 393 0xffffffff, /* src_mask */ 394 0xffffffff, /* dst_mask */ 395 FALSE), /* pcrel_offset */ 396 397 /* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */ 398 /* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */ 399 /* Of course, That's the IBM approved bit numbering, which is not what */ 400 /* anyone else uses.... The li field is in bit 2 thru 25 */ 401 /* Used: */ 402 HOWTO (IMAGE_REL_PPC_ADDR24, /* type */ 403 0, /* rightshift */ 404 2, /* size (0 = byte, 1 = short, 2 = long) */ 405 26, /* bitsize */ 406 FALSE, /* pc_relative */ 407 0, /* bitpos */ 408 complain_overflow_bitfield, /* complain_on_overflow */ 409 0, /* special_function */ 410 "ADDR24", /* name */ 411 TRUE, /* partial_inplace */ 412 0x07fffffc, /* src_mask */ 413 0x07fffffc, /* dst_mask */ 414 FALSE), /* pcrel_offset */ 415 416 /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */ 417 /* Used: */ 418 HOWTO (IMAGE_REL_PPC_ADDR16, /* type */ 419 0, /* rightshift */ 420 1, /* size (0 = byte, 1 = short, 2 = long) */ 421 16, /* bitsize */ 422 FALSE, /* pc_relative */ 423 0, /* bitpos */ 424 complain_overflow_signed, /* complain_on_overflow */ 425 0, /* special_function */ 426 "ADDR16", /* name */ 427 TRUE, /* partial_inplace */ 428 0xffff, /* src_mask */ 429 0xffff, /* dst_mask */ 430 FALSE), /* pcrel_offset */ 431 432 /* IMAGE_REL_PPC_ADDR14 0x0005 */ 433 /* 16-bit address, shifted left 2 (load doubleword) */ 434 /* FIXME: the mask is likely wrong, and the bit position may be as well */ 435 /* Unused: */ 436 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ 437 1, /* rightshift */ 438 1, /* size (0 = byte, 1 = short, 2 = long) */ 439 16, /* bitsize */ 440 FALSE, /* pc_relative */ 441 0, /* bitpos */ 442 complain_overflow_signed, /* complain_on_overflow */ 443 0, /* special_function */ 444 "ADDR16", /* name */ 445 TRUE, /* partial_inplace */ 446 0xffff, /* src_mask */ 447 0xffff, /* dst_mask */ 448 FALSE), /* pcrel_offset */ 449 450 /* IMAGE_REL_PPC_REL24 0x0006 */ 451 /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ 452 /* Used: */ 453 HOWTO (IMAGE_REL_PPC_REL24, /* type */ 454 0, /* rightshift */ 455 2, /* size (0 = byte, 1 = short, 2 = long) */ 456 26, /* bitsize */ 457 TRUE, /* pc_relative */ 458 0, /* bitpos */ 459 complain_overflow_signed, /* complain_on_overflow */ 460 0, /* special_function */ 461 "REL24", /* name */ 462 TRUE, /* partial_inplace */ 463 0x3fffffc, /* src_mask */ 464 0x3fffffc, /* dst_mask */ 465 FALSE), /* pcrel_offset */ 466 467 /* IMAGE_REL_PPC_REL14 0x0007 */ 468 /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ 469 /* FIXME: the mask is likely wrong, and the bit position may be as well */ 470 /* FIXME: how does it know how far to shift? */ 471 /* Unused: */ 472 HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ 473 1, /* rightshift */ 474 1, /* size (0 = byte, 1 = short, 2 = long) */ 475 16, /* bitsize */ 476 FALSE, /* pc_relative */ 477 0, /* bitpos */ 478 complain_overflow_signed, /* complain_on_overflow */ 479 0, /* special_function */ 480 "ADDR16", /* name */ 481 TRUE, /* partial_inplace */ 482 0xffff, /* src_mask */ 483 0xffff, /* dst_mask */ 484 TRUE), /* pcrel_offset */ 485 486 /* IMAGE_REL_PPC_TOCREL16 0x0008 */ 487 /* 16-bit offset from TOC base */ 488 /* Used: */ 489 HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */ 490 0, /* rightshift */ 491 1, /* size (0 = byte, 1 = short, 2 = long) */ 492 16, /* bitsize */ 493 FALSE, /* pc_relative */ 494 0, /* bitpos */ 495 complain_overflow_dont, /* complain_on_overflow */ 496 ppc_toc16_reloc, /* special_function */ 497 "TOCREL16", /* name */ 498 FALSE, /* partial_inplace */ 499 0xffff, /* src_mask */ 500 0xffff, /* dst_mask */ 501 FALSE), /* pcrel_offset */ 502 503 /* IMAGE_REL_PPC_TOCREL14 0x0009 */ 504 /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ 505 /* Unused: */ 506 HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */ 507 1, /* rightshift */ 508 1, /* size (0 = byte, 1 = short, 2 = long) */ 509 16, /* bitsize */ 510 FALSE, /* pc_relative */ 511 0, /* bitpos */ 512 complain_overflow_signed, /* complain_on_overflow */ 513 0, /* special_function */ 514 "TOCREL14", /* name */ 515 FALSE, /* partial_inplace */ 516 0xffff, /* src_mask */ 517 0xffff, /* dst_mask */ 518 FALSE), /* pcrel_offset */ 519 520 /* IMAGE_REL_PPC_ADDR32NB 0x000A */ 521 /* 32-bit addr w/ image base */ 522 /* Unused: */ 523 HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */ 524 0, /* rightshift */ 525 2, /* size (0 = byte, 1 = short, 2 = long) */ 526 32, /* bitsize */ 527 FALSE, /* pc_relative */ 528 0, /* bitpos */ 529 complain_overflow_signed, /* complain_on_overflow */ 530 0, /* special_function */ 531 "ADDR32NB", /* name */ 532 TRUE, /* partial_inplace */ 533 0xffffffff, /* src_mask */ 534 0xffffffff, /* dst_mask */ 535 FALSE), /* pcrel_offset */ 536 537 /* IMAGE_REL_PPC_SECREL 0x000B */ 538 /* va of containing section (as in an image sectionhdr) */ 539 /* Unused: */ 540 HOWTO (IMAGE_REL_PPC_SECREL,/* type */ 541 0, /* rightshift */ 542 2, /* size (0 = byte, 1 = short, 2 = long) */ 543 32, /* bitsize */ 544 FALSE, /* pc_relative */ 545 0, /* bitpos */ 546 complain_overflow_signed, /* complain_on_overflow */ 547 ppc_secrel_reloc, /* special_function */ 548 "SECREL", /* name */ 549 TRUE, /* partial_inplace */ 550 0xffffffff, /* src_mask */ 551 0xffffffff, /* dst_mask */ 552 TRUE), /* pcrel_offset */ 553 554 /* IMAGE_REL_PPC_SECTION 0x000C */ 555 /* sectionheader number */ 556 /* Unused: */ 557 HOWTO (IMAGE_REL_PPC_SECTION,/* type */ 558 0, /* rightshift */ 559 2, /* size (0 = byte, 1 = short, 2 = long) */ 560 32, /* bitsize */ 561 FALSE, /* pc_relative */ 562 0, /* bitpos */ 563 complain_overflow_signed, /* complain_on_overflow */ 564 ppc_section_reloc, /* special_function */ 565 "SECTION", /* name */ 566 TRUE, /* partial_inplace */ 567 0xffffffff, /* src_mask */ 568 0xffffffff, /* dst_mask */ 569 TRUE), /* pcrel_offset */ 570 571 /* IMAGE_REL_PPC_IFGLUE 0x000D */ 572 /* substitute TOC restore instruction iff symbol is glue code */ 573 /* Used: */ 574 HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */ 575 0, /* rightshift */ 576 2, /* size (0 = byte, 1 = short, 2 = long) */ 577 32, /* bitsize */ 578 FALSE, /* pc_relative */ 579 0, /* bitpos */ 580 complain_overflow_signed, /* complain_on_overflow */ 581 0, /* special_function */ 582 "IFGLUE", /* name */ 583 TRUE, /* partial_inplace */ 584 0xffffffff, /* src_mask */ 585 0xffffffff, /* dst_mask */ 586 FALSE), /* pcrel_offset */ 587 588 /* IMAGE_REL_PPC_IMGLUE 0x000E */ 589 /* symbol is glue code; virtual address is TOC restore instruction */ 590 /* Unused: */ 591 HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */ 592 0, /* rightshift */ 593 2, /* size (0 = byte, 1 = short, 2 = long) */ 594 32, /* bitsize */ 595 FALSE, /* pc_relative */ 596 0, /* bitpos */ 597 complain_overflow_dont, /* complain_on_overflow */ 598 ppc_imglue_reloc, /* special_function */ 599 "IMGLUE", /* name */ 600 FALSE, /* partial_inplace */ 601 0xffffffff, /* src_mask */ 602 0xffffffff, /* dst_mask */ 603 FALSE), /* pcrel_offset */ 604 605 /* IMAGE_REL_PPC_SECREL16 0x000F */ 606 /* va of containing section (limited to 16 bits) */ 607 /* Unused: */ 608 HOWTO (IMAGE_REL_PPC_SECREL16,/* type */ 609 0, /* rightshift */ 610 1, /* size (0 = byte, 1 = short, 2 = long) */ 611 16, /* bitsize */ 612 FALSE, /* pc_relative */ 613 0, /* bitpos */ 614 complain_overflow_signed, /* complain_on_overflow */ 615 0, /* special_function */ 616 "SECREL16", /* name */ 617 TRUE, /* partial_inplace */ 618 0xffff, /* src_mask */ 619 0xffff, /* dst_mask */ 620 TRUE), /* pcrel_offset */ 621 622 /* IMAGE_REL_PPC_REFHI 0x0010 */ 623 /* Unused: */ 624 HOWTO (IMAGE_REL_PPC_REFHI, /* type */ 625 0, /* rightshift */ 626 1, /* size (0 = byte, 1 = short, 2 = long) */ 627 16, /* bitsize */ 628 FALSE, /* pc_relative */ 629 0, /* bitpos */ 630 complain_overflow_signed, /* complain_on_overflow */ 631 ppc_refhi_reloc, /* special_function */ 632 "REFHI", /* name */ 633 TRUE, /* partial_inplace */ 634 0xffffffff, /* src_mask */ 635 0xffffffff, /* dst_mask */ 636 FALSE), /* pcrel_offset */ 637 638 /* IMAGE_REL_PPC_REFLO 0x0011 */ 639 /* Unused: */ 640 HOWTO (IMAGE_REL_PPC_REFLO, /* type */ 641 0, /* rightshift */ 642 1, /* size (0 = byte, 1 = short, 2 = long) */ 643 16, /* bitsize */ 644 FALSE, /* pc_relative */ 645 0, /* bitpos */ 646 complain_overflow_signed, /* complain_on_overflow */ 647 ppc_refhi_reloc, /* special_function */ 648 "REFLO", /* name */ 649 TRUE, /* partial_inplace */ 650 0xffffffff, /* src_mask */ 651 0xffffffff, /* dst_mask */ 652 FALSE), /* pcrel_offset */ 653 654 /* IMAGE_REL_PPC_PAIR 0x0012 */ 655 /* Unused: */ 656 HOWTO (IMAGE_REL_PPC_PAIR, /* type */ 657 0, /* rightshift */ 658 1, /* size (0 = byte, 1 = short, 2 = long) */ 659 16, /* bitsize */ 660 FALSE, /* pc_relative */ 661 0, /* bitpos */ 662 complain_overflow_signed, /* complain_on_overflow */ 663 ppc_pair_reloc, /* special_function */ 664 "PAIR", /* name */ 665 TRUE, /* partial_inplace */ 666 0xffffffff, /* src_mask */ 667 0xffffffff, /* dst_mask */ 668 FALSE), /* pcrel_offset */ 669 670 /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */ 671 /* 16-bit offset from TOC base, without causing a definition */ 672 /* Used: */ 673 HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */ 674 0, /* rightshift */ 675 1, /* size (0 = byte, 1 = short, 2 = long) */ 676 16, /* bitsize */ 677 FALSE, /* pc_relative */ 678 0, /* bitpos */ 679 complain_overflow_dont, /* complain_on_overflow */ 680 0, /* special_function */ 681 "TOCREL16, TOCDEFN", /* name */ 682 FALSE, /* partial_inplace */ 683 0xffff, /* src_mask */ 684 0xffff, /* dst_mask */ 685 FALSE), /* pcrel_offset */ 686 687}; 688 689/* Some really cheezy macros that can be turned on to test stderr :-) */ 690 691#ifdef DEBUG_RELOC 692#define UN_IMPL(x) \ 693{ \ 694 static int i; \ 695 if (i == 0) \ 696 { \ 697 i = 1; \ 698 fprintf (stderr,_("Unimplemented Relocation -- %s\n"),x); \ 699 } \ 700} 701 702#define DUMP_RELOC(n,r) \ 703{ \ 704 fprintf (stderr,"%s sym %d, addr %d, addend %d\n", \ 705 n, (*(r->sym_ptr_ptr))->name, \ 706 r->address, r->addend); \ 707} 708 709/* Given a reloc name, n, and a pointer to an internal_reloc, 710 dump out interesting information on the contents 711 712#define n_name _n._n_name 713#define n_zeroes _n._n_n._n_zeroes 714#define n_offset _n._n_n._n_offset */ 715 716#define DUMP_RELOC2(n,r) \ 717{ \ 718 fprintf (stderr,"%s sym %d, r_vaddr %d %s\n", \ 719 n, r->r_symndx, r->r_vaddr, \ 720 (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \ 721 ?" ":" TOCDEFN" ); \ 722} 723 724#else 725#define UN_IMPL(x) 726#define DUMP_RELOC(n,r) 727#define DUMP_RELOC2(n,r) 728#endif 729 730/* TOC construction and management routines. */ 731 732/* This file is compiled twice, and these variables are defined in one 733 of the compilations. FIXME: This is confusing and weird. Also, 734 BFD should not use global variables. */ 735extern bfd * bfd_of_toc_owner; 736extern long int global_toc_size; 737extern long int import_table_size; 738extern long int first_thunk_address; 739extern long int thunk_size; 740 741enum toc_type 742{ 743 default_toc, 744 toc_32, 745 toc_64 746}; 747 748enum ref_category 749{ 750 priv, 751 pub, 752 tocdata 753}; 754 755struct list_ele 756{ 757 struct list_ele *next; 758 bfd_vma addr; 759 enum ref_category cat; 760 int offset; 761 const char *name; 762}; 763 764extern struct list_ele *head; 765extern struct list_ele *tail; 766 767static void 768record_toc (asection *toc_section, 769 bfd_signed_vma our_toc_offset, 770 enum ref_category cat, 771 const char *name) 772{ 773 /* Add this entry to our toc addr-offset-name list. */ 774 bfd_size_type amt = sizeof (struct list_ele); 775 struct list_ele *t = (struct list_ele *) bfd_malloc (amt); 776 777 if (t == NULL) 778 abort (); 779 t->next = 0; 780 t->offset = our_toc_offset; 781 t->name = name; 782 t->cat = cat; 783 t->addr = toc_section->output_offset + our_toc_offset; 784 785 if (head == 0) 786 { 787 head = t; 788 tail = t; 789 } 790 else 791 { 792 tail->next = t; 793 tail = t; 794 } 795} 796 797#ifdef COFF_IMAGE_WITH_PE 798 799/* Record a toc offset against a symbol. */ 800static bfd_boolean 801ppc_record_toc_entry (bfd *abfd, 802 struct bfd_link_info *info ATTRIBUTE_UNUSED, 803 asection *sec ATTRIBUTE_UNUSED, 804 int sym, 805 enum toc_type toc_kind ATTRIBUTE_UNUSED) 806{ 807 struct ppc_coff_link_hash_entry *h; 808 int *local_syms; 809 810 h = 0; 811 812 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); 813 if (h != 0) 814 { 815 HASH_CHECK(h); 816 } 817 818 if (h == 0) 819 { 820 local_syms = obj_coff_local_toc_table(abfd); 821 822 if (local_syms == 0) 823 { 824 unsigned int i; 825 bfd_size_type amt; 826 827 /* allocate a table */ 828 amt = (bfd_size_type) obj_raw_syment_count (abfd) * sizeof (int); 829 local_syms = (int *) bfd_zalloc (abfd, amt); 830 if (local_syms == 0) 831 return FALSE; 832 obj_coff_local_toc_table (abfd) = local_syms; 833 834 for (i = 0; i < obj_raw_syment_count (abfd); ++i) 835 { 836 SET_UNALLOCATED (local_syms[i]); 837 } 838 } 839 840 if (IS_UNALLOCATED(local_syms[sym])) 841 { 842 local_syms[sym] = global_toc_size; 843 global_toc_size += 4; 844 845 /* The size must fit in a 16-bit displacement. */ 846 if (global_toc_size > 65535) 847 { 848 _bfd_error_handler (_("TOC overflow")); 849 bfd_set_error (bfd_error_file_too_big); 850 return FALSE; 851 } 852 } 853 } 854 else 855 { 856 /* Check to see if there's a toc slot allocated. If not, do it 857 here. It will be used in relocate_section. */ 858 if (IS_UNALLOCATED(h->toc_offset)) 859 { 860 h->toc_offset = global_toc_size; 861 global_toc_size += 4; 862 863 /* The size must fit in a 16-bit displacement. */ 864 if (global_toc_size >= 65535) 865 { 866 _bfd_error_handler (_("TOC overflow")); 867 bfd_set_error (bfd_error_file_too_big); 868 return FALSE; 869 } 870 } 871 } 872 873 return TRUE; 874} 875 876/* Record a toc offset against a symbol. */ 877static void 878ppc_mark_symbol_as_glue (bfd *abfd, 879 int sym, 880 struct internal_reloc *rel) 881{ 882 struct ppc_coff_link_hash_entry *h; 883 884 h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); 885 886 HASH_CHECK(h); 887 888 h->symbol_is_glue = 1; 889 h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr); 890 891 return; 892} 893 894#endif /* COFF_IMAGE_WITH_PE */ 895 896/* Return TRUE if this relocation should 897 appear in the output .reloc section. */ 898 899static bfd_boolean 900in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED, 901 reloc_howto_type *howto) 902{ 903 return 904 (! howto->pc_relative) 905 && (howto->type != IMAGE_REL_PPC_ADDR32NB) 906 && (howto->type != IMAGE_REL_PPC_TOCREL16) 907 && (howto->type != IMAGE_REL_PPC_IMGLUE) 908 && (howto->type != IMAGE_REL_PPC_IFGLUE) 909 && (howto->type != IMAGE_REL_PPC_SECREL) 910 && (howto->type != IMAGE_REL_PPC_SECTION) 911 && (howto->type != IMAGE_REL_PPC_SECREL16) 912 && (howto->type != IMAGE_REL_PPC_REFHI) 913 && (howto->type != IMAGE_REL_PPC_REFLO) 914 && (howto->type != IMAGE_REL_PPC_PAIR) 915 && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ; 916} 917 918static bfd_boolean 919write_base_file_entry (bfd *obfd, struct bfd_link_info *info, bfd_vma addr) 920{ 921 if (coff_data (obfd)->pe) 922 addr -= pe_data (obfd)->pe_opthdr.ImageBase; 923 if (fwrite (&addr, sizeof (addr), 1, (FILE *) info->base_file) == 1) 924 return TRUE; 925 926 bfd_set_error (bfd_error_system_call); 927 return FALSE; 928} 929 930/* The reloc processing routine for the optimized COFF linker. */ 931 932static bfd_boolean 933coff_ppc_relocate_section (bfd *output_bfd, 934 struct bfd_link_info *info, 935 bfd *input_bfd, 936 asection *input_section, 937 bfd_byte *contents, 938 struct internal_reloc *relocs, 939 struct internal_syment *syms, 940 asection **sections) 941{ 942 struct internal_reloc *rel; 943 struct internal_reloc *relend; 944 asection *toc_section = 0; 945 bfd_vma relocation; 946 reloc_howto_type *howto = 0; 947 948 /* If we are performing a relocatable link, we don't need to do a 949 thing. The caller will take care of adjusting the reloc 950 addresses and symbol indices. */ 951 if (bfd_link_relocatable (info)) 952 return TRUE; 953 954 rel = relocs; 955 relend = rel + input_section->reloc_count; 956 for (; rel < relend; rel++) 957 { 958 long symndx; 959 struct ppc_coff_link_hash_entry *h; 960 struct internal_syment *sym; 961 bfd_vma val; 962 963 asection *sec; 964 bfd_reloc_status_type rstat; 965 bfd_byte *loc; 966 967 unsigned short r_type = EXTRACT_TYPE (rel->r_type); 968 unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); 969 970 symndx = rel->r_symndx; 971 loc = contents + rel->r_vaddr - input_section->vma; 972 973 /* FIXME: check bounds on r_type */ 974 howto = ppc_coff_howto_table + r_type; 975 976 if (symndx == -1) 977 { 978 h = NULL; 979 sym = NULL; 980 } 981 else 982 { 983 h = (struct ppc_coff_link_hash_entry *) 984 (obj_coff_sym_hashes (input_bfd)[symndx]); 985 if (h != 0) 986 { 987 HASH_CHECK(h); 988 } 989 990 sym = syms + symndx; 991 } 992 993 if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0) 994 { 995 /* An IMGLUE reloc must have a name. Something is very wrong. */ 996 abort (); 997 } 998 999 sec = NULL; 1000 val = 0; 1001 1002 /* FIXME: PAIR unsupported in the following code. */ 1003 if (h == NULL) 1004 { 1005 if (symndx == -1) 1006 sec = bfd_abs_section_ptr; 1007 else 1008 { 1009 sec = sections[symndx]; 1010 val = (sec->output_section->vma 1011 + sec->output_offset 1012 + sym->n_value); 1013 if (! obj_pe (output_bfd)) 1014 val -= sec->vma; 1015 } 1016 } 1017 else 1018 { 1019 HASH_CHECK(h); 1020 1021 if (h->root.root.type == bfd_link_hash_defined 1022 || h->root.root.type == bfd_link_hash_defweak) 1023 { 1024 sec = h->root.root.u.def.section; 1025 val = (h->root.root.u.def.value 1026 + sec->output_section->vma 1027 + sec->output_offset); 1028 } 1029 else 1030 (*info->callbacks->undefined_symbol) 1031 (info, h->root.root.root.string, input_bfd, input_section, 1032 rel->r_vaddr - input_section->vma, TRUE); 1033 } 1034 1035 rstat = bfd_reloc_ok; 1036 1037 /* Each case must do its own relocation, setting rstat appropriately. */ 1038 switch (r_type) 1039 { 1040 default: 1041 _bfd_error_handler 1042 /* xgettext: c-format */ 1043 (_("%B: unsupported relocation type 0x%02x"), input_bfd, r_type); 1044 bfd_set_error (bfd_error_bad_value); 1045 return FALSE; 1046 case IMAGE_REL_PPC_TOCREL16: 1047 { 1048 bfd_signed_vma our_toc_offset; 1049 int fixit; 1050 1051 DUMP_RELOC2(howto->name, rel); 1052 1053 if (toc_section == 0) 1054 { 1055 toc_section = bfd_get_section_by_name (bfd_of_toc_owner, 1056 TOC_SECTION_NAME); 1057 1058 if ( toc_section == NULL ) 1059 { 1060 /* There is no toc section. Something is very wrong. */ 1061 abort (); 1062 } 1063 } 1064 1065 /* Amazing bit tricks present. As we may have seen earlier, we 1066 use the 1 bit to tell us whether or not a toc offset has been 1067 allocated. Now that they've all been allocated, we will use 1068 the 1 bit to tell us if we've written this particular toc 1069 entry out. */ 1070 fixit = FALSE; 1071 if (h == 0) 1072 { 1073 /* It is a file local symbol. */ 1074 int *local_toc_table; 1075 char name[SYMNMLEN + 1]; 1076 1077 sym = syms + symndx; 1078 strncpy (name, sym->_n._n_name, SYMNMLEN); 1079 name[SYMNMLEN] = '\0'; 1080 1081 local_toc_table = obj_coff_local_toc_table(input_bfd); 1082 our_toc_offset = local_toc_table[symndx]; 1083 1084 if (IS_WRITTEN(our_toc_offset)) 1085 { 1086 /* If it has been written out, it is marked with the 1087 1 bit. Fix up our offset, but do not write it out 1088 again. */ 1089 MAKE_ADDR_AGAIN(our_toc_offset); 1090 } 1091 else 1092 { 1093 /* Write out the toc entry. */ 1094 record_toc (toc_section, our_toc_offset, priv, 1095 strdup (name)); 1096 1097 bfd_put_32 (output_bfd, val, 1098 toc_section->contents + our_toc_offset); 1099 1100 MARK_AS_WRITTEN(local_toc_table[symndx]); 1101 fixit = TRUE; 1102 } 1103 } 1104 else 1105 { 1106 const char *name = h->root.root.root.string; 1107 our_toc_offset = h->toc_offset; 1108 1109 if ((r_flags & IMAGE_REL_PPC_TOCDEFN) 1110 == IMAGE_REL_PPC_TOCDEFN ) 1111 { 1112 /* This is unbelievable cheese. Some knowledgable asm 1113 hacker has decided to use r2 as a base for loading 1114 a value. He/She does this by setting the tocdefn bit, 1115 and not supplying a toc definition. The behaviour is 1116 then to use the difference between the value of the 1117 symbol and the actual location of the toc as the toc 1118 index. 1119 1120 In fact, what is usually happening is, because the 1121 Import Address Table is mapped immediately following 1122 the toc, some trippy library code trying for speed on 1123 dll linkage, takes advantage of that and considers 1124 the IAT to be part of the toc, thus saving a load. */ 1125 1126 our_toc_offset = val - (toc_section->output_section->vma 1127 + toc_section->output_offset); 1128 1129 /* The size must still fit in a 16-bit displacement. */ 1130 if ((bfd_vma) our_toc_offset >= 65535) 1131 { 1132 _bfd_error_handler 1133 /* xgettext: c-format */ 1134 (_("%B: Relocation for %s of %lx exceeds " 1135 "Toc size limit"), 1136 input_bfd, name, 1137 (unsigned long) our_toc_offset); 1138 bfd_set_error (bfd_error_bad_value); 1139 return FALSE; 1140 } 1141 1142 record_toc (toc_section, our_toc_offset, pub, 1143 strdup (name)); 1144 } 1145 else if (IS_WRITTEN (our_toc_offset)) 1146 { 1147 /* If it has been written out, it is marked with the 1148 1 bit. Fix up our offset, but do not write it out 1149 again. */ 1150 MAKE_ADDR_AGAIN(our_toc_offset); 1151 } 1152 else 1153 { 1154 record_toc(toc_section, our_toc_offset, pub, 1155 strdup (name)); 1156 1157 /* Write out the toc entry. */ 1158 bfd_put_32 (output_bfd, val, 1159 toc_section->contents + our_toc_offset); 1160 1161 MARK_AS_WRITTEN(h->toc_offset); 1162 /* The tricky part is that this is the address that 1163 needs a .reloc entry for it. */ 1164 fixit = TRUE; 1165 } 1166 } 1167 1168 if (fixit && info->base_file) 1169 { 1170 /* So if this is non pcrelative, and is referenced 1171 to a section or a common symbol, then it needs a reloc. */ 1172 1173 /* Relocation to a symbol in a section which 1174 isn't absolute - we output the address here 1175 to a file. */ 1176 bfd_vma addr = (toc_section->output_section->vma 1177 + toc_section->output_offset + our_toc_offset); 1178 1179 if (!write_base_file_entry (output_bfd, info, addr)) 1180 return FALSE; 1181 } 1182 1183 /* FIXME: this test is conservative. */ 1184 if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN 1185 && (bfd_vma) our_toc_offset > toc_section->size) 1186 { 1187 _bfd_error_handler 1188 /* xgettext: c-format */ 1189 (_("%B: Relocation exceeds allocated TOC (%lx)"), 1190 input_bfd, (unsigned long) toc_section->size); 1191 bfd_set_error (bfd_error_bad_value); 1192 return FALSE; 1193 } 1194 1195 /* Now we know the relocation for this toc reference. */ 1196 relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT; 1197 rstat = _bfd_relocate_contents (howto, input_bfd, relocation, loc); 1198 } 1199 break; 1200 case IMAGE_REL_PPC_IFGLUE: 1201 { 1202 /* To solve this, we need to know whether or not the symbol 1203 appearing on the call instruction is a glue function or not. 1204 A glue function must announce itself via a IMGLUE reloc, and 1205 the reloc contains the required toc restore instruction. */ 1206 DUMP_RELOC2 (howto->name, rel); 1207 1208 if (h != 0) 1209 { 1210 if (h->symbol_is_glue == 1) 1211 { 1212 bfd_put_32 (input_bfd, (bfd_vma) h->glue_insn, loc); 1213 } 1214 } 1215 } 1216 break; 1217 case IMAGE_REL_PPC_SECREL: 1218 /* Unimplemented: codeview debugging information. */ 1219 /* For fast access to the header of the section 1220 containing the item. */ 1221 break; 1222 case IMAGE_REL_PPC_SECTION: 1223 /* Unimplemented: codeview debugging information. */ 1224 /* Is used to indicate that the value should be relative 1225 to the beginning of the section that contains the 1226 symbol. */ 1227 break; 1228 case IMAGE_REL_PPC_ABSOLUTE: 1229 { 1230 const char *my_name; 1231 char buf[SYMNMLEN + 1]; 1232 1233 if (h == 0) 1234 { 1235 strncpy (buf, (syms+symndx)->_n._n_name, SYMNMLEN); 1236 buf[SYMNMLEN] = '\0'; 1237 my_name = buf; 1238 } 1239 else 1240 my_name = h->root.root.root.string; 1241 1242 _bfd_error_handler 1243 /* xgettext: c-format */ 1244 (_("Warning: unsupported reloc %s <file %B, section %A>\n" 1245 "sym %ld (%s), r_vaddr %ld (%lx)"), 1246 input_bfd, input_section, howto->name, 1247 rel->r_symndx, my_name, (long) rel->r_vaddr, 1248 (unsigned long) rel->r_vaddr); 1249 } 1250 break; 1251 case IMAGE_REL_PPC_IMGLUE: 1252 { 1253 /* There is nothing to do now. This reloc was noted in the first 1254 pass over the relocs, and the glue instruction extracted. */ 1255 const char *my_name; 1256 1257 if (h->symbol_is_glue == 1) 1258 break; 1259 my_name = h->root.root.root.string; 1260 1261 _bfd_error_handler 1262 /* xgettext: c-format */ 1263 (_("%B: Out of order IMGLUE reloc for %s"), input_bfd, my_name); 1264 bfd_set_error (bfd_error_bad_value); 1265 return FALSE; 1266 } 1267 1268 case IMAGE_REL_PPC_ADDR32NB: 1269 { 1270 const char *name = 0; 1271 1272 DUMP_RELOC2 (howto->name, rel); 1273 1274 if (CONST_STRNEQ (input_section->name, ".idata$2") && first_thunk_address == 0) 1275 { 1276 /* Set magic values. */ 1277 int idata5offset; 1278 struct coff_link_hash_entry *myh; 1279 1280 myh = coff_link_hash_lookup (coff_hash_table (info), 1281 "__idata5_magic__", 1282 FALSE, FALSE, TRUE); 1283 first_thunk_address = myh->root.u.def.value + 1284 sec->output_section->vma + 1285 sec->output_offset - 1286 pe_data(output_bfd)->pe_opthdr.ImageBase; 1287 1288 idata5offset = myh->root.u.def.value; 1289 myh = coff_link_hash_lookup (coff_hash_table (info), 1290 "__idata6_magic__", 1291 FALSE, FALSE, TRUE); 1292 1293 thunk_size = myh->root.u.def.value - idata5offset; 1294 myh = coff_link_hash_lookup (coff_hash_table (info), 1295 "__idata4_magic__", 1296 FALSE, FALSE, TRUE); 1297 import_table_size = myh->root.u.def.value; 1298 } 1299 1300 if (h == 0) 1301 /* It is a file local symbol. */ 1302 sym = syms + symndx; 1303 else 1304 { 1305 char *target = 0; 1306 1307 name = h->root.root.root.string; 1308 if (strcmp (".idata$2", name) == 0) 1309 target = "__idata2_magic__"; 1310 else if (strcmp (".idata$4", name) == 0) 1311 target = "__idata4_magic__"; 1312 else if (strcmp (".idata$5", name) == 0) 1313 target = "__idata5_magic__"; 1314 1315 if (target != 0) 1316 { 1317 struct coff_link_hash_entry *myh; 1318 1319 myh = coff_link_hash_lookup (coff_hash_table (info), 1320 target, 1321 FALSE, FALSE, TRUE); 1322 if (myh == 0) 1323 { 1324 /* Missing magic cookies. Something is very wrong. */ 1325 abort (); 1326 } 1327 1328 val = myh->root.u.def.value + 1329 sec->output_section->vma + sec->output_offset; 1330 if (first_thunk_address == 0) 1331 { 1332 int idata5offset; 1333 myh = coff_link_hash_lookup (coff_hash_table (info), 1334 "__idata5_magic__", 1335 FALSE, FALSE, TRUE); 1336 first_thunk_address = myh->root.u.def.value + 1337 sec->output_section->vma + 1338 sec->output_offset - 1339 pe_data(output_bfd)->pe_opthdr.ImageBase; 1340 1341 idata5offset = myh->root.u.def.value; 1342 myh = coff_link_hash_lookup (coff_hash_table (info), 1343 "__idata6_magic__", 1344 FALSE, FALSE, TRUE); 1345 1346 thunk_size = myh->root.u.def.value - idata5offset; 1347 myh = coff_link_hash_lookup (coff_hash_table (info), 1348 "__idata4_magic__", 1349 FALSE, FALSE, TRUE); 1350 import_table_size = myh->root.u.def.value; 1351 } 1352 } 1353 } 1354 1355 rstat = _bfd_relocate_contents (howto, 1356 input_bfd, 1357 val - 1358 pe_data (output_bfd)->pe_opthdr.ImageBase, 1359 loc); 1360 } 1361 break; 1362 1363 case IMAGE_REL_PPC_REL24: 1364 DUMP_RELOC2(howto->name, rel); 1365 val -= (input_section->output_section->vma 1366 + input_section->output_offset); 1367 1368 rstat = _bfd_relocate_contents (howto, 1369 input_bfd, 1370 val, 1371 loc); 1372 break; 1373 case IMAGE_REL_PPC_ADDR16: 1374 case IMAGE_REL_PPC_ADDR24: 1375 case IMAGE_REL_PPC_ADDR32: 1376 DUMP_RELOC2(howto->name, rel); 1377 rstat = _bfd_relocate_contents (howto, 1378 input_bfd, 1379 val, 1380 loc); 1381 break; 1382 } 1383 1384 if (info->base_file) 1385 { 1386 /* So if this is non pcrelative, and is referenced 1387 to a section or a common symbol, then it needs a reloc. */ 1388 if (sym && pe_data(output_bfd)->in_reloc_p (output_bfd, howto)) 1389 { 1390 /* Relocation to a symbol in a section which 1391 isn't absolute - we output the address here 1392 to a file. */ 1393 bfd_vma addr = (rel->r_vaddr 1394 - input_section->vma 1395 + input_section->output_offset 1396 + input_section->output_section->vma); 1397 1398 if (!write_base_file_entry (output_bfd, info, addr)) 1399 return FALSE; 1400 } 1401 } 1402 1403 switch (rstat) 1404 { 1405 default: 1406 abort (); 1407 case bfd_reloc_ok: 1408 break; 1409 case bfd_reloc_overflow: 1410 { 1411 const char *name; 1412 char buf[SYMNMLEN + 1]; 1413 1414 if (symndx == -1) 1415 name = "*ABS*"; 1416 else if (h != NULL) 1417 name = NULL; 1418 else if (sym == NULL) 1419 name = "*unknown*"; 1420 else if (sym->_n._n_n._n_zeroes == 0 1421 && sym->_n._n_n._n_offset != 0) 1422 name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; 1423 else 1424 { 1425 strncpy (buf, sym->_n._n_name, SYMNMLEN); 1426 buf[SYMNMLEN] = '\0'; 1427 name = buf; 1428 } 1429 1430 (*info->callbacks->reloc_overflow) 1431 (info, (h ? &h->root.root : NULL), name, howto->name, 1432 (bfd_vma) 0, input_bfd, input_section, 1433 rel->r_vaddr - input_section->vma); 1434 } 1435 } 1436 } 1437 1438 return TRUE; 1439} 1440 1441#ifdef COFF_IMAGE_WITH_PE 1442 1443/* FIXME: BFD should not use global variables. This file is compiled 1444 twice, and these variables are shared. This is confusing and 1445 weird. */ 1446 1447long int global_toc_size = 4; 1448 1449bfd* bfd_of_toc_owner = 0; 1450 1451long int import_table_size; 1452long int first_thunk_address; 1453long int thunk_size; 1454 1455struct list_ele *head; 1456struct list_ele *tail; 1457 1458static char * 1459h1 = N_("\n\t\t\tTOC MAPPING\n\n"); 1460static char * 1461h2 = N_(" TOC disassembly Comments Name\n"); 1462static char * 1463h3 = N_(" Offset spelling (if present)\n"); 1464 1465void 1466dump_toc (void * vfile) 1467{ 1468 FILE *file = (FILE *) vfile; 1469 struct list_ele *t; 1470 1471 fputs (_(h1), file); 1472 fputs (_(h2), file); 1473 fputs (_(h3), file); 1474 1475 for (t = head; t != 0; t=t->next) 1476 { 1477 const char *cat = ""; 1478 1479 if (t->cat == priv) 1480 cat = _("private "); 1481 else if (t->cat == pub) 1482 cat = _("public "); 1483 else if (t->cat == tocdata) 1484 cat = _("data-in-toc "); 1485 1486 if (t->offset > global_toc_size) 1487 { 1488 if (t->offset <= global_toc_size + thunk_size) 1489 cat = _("IAT reference "); 1490 else 1491 { 1492 fprintf (file, 1493 /* xgettext: c-format */ 1494 _("**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n"), 1495 global_toc_size, (unsigned long) global_toc_size, 1496 thunk_size, (unsigned long) thunk_size); 1497 cat = _("Out of bounds!"); 1498 } 1499 } 1500 1501 fprintf (file, 1502 " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768); 1503 fprintf (file, 1504 " %s %s\n", 1505 cat, t->name); 1506 1507 } 1508 1509 fprintf (file, "\n"); 1510} 1511 1512bfd_boolean 1513ppc_allocate_toc_section (struct bfd_link_info *info ATTRIBUTE_UNUSED) 1514{ 1515 asection *s; 1516 bfd_byte *foo; 1517 bfd_size_type amt; 1518 static char test_char = '1'; 1519 1520 if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */ 1521 return TRUE; 1522 1523 if (bfd_of_toc_owner == 0) 1524 /* No toc owner? Something is very wrong. */ 1525 abort (); 1526 1527 s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME); 1528 if (s == NULL) 1529 /* No toc section? Something is very wrong. */ 1530 abort (); 1531 1532 amt = global_toc_size; 1533 foo = (bfd_byte *) bfd_alloc (bfd_of_toc_owner, amt); 1534 memset(foo, test_char, (size_t) global_toc_size); 1535 1536 s->size = global_toc_size; 1537 s->contents = foo; 1538 1539 return TRUE; 1540} 1541 1542bfd_boolean 1543ppc_process_before_allocation (bfd *abfd, 1544 struct bfd_link_info *info) 1545{ 1546 asection *sec; 1547 struct internal_reloc *i, *rel; 1548 1549 /* Here we have a bfd that is to be included on the link. We have a hook 1550 to do reloc rummaging, before section sizes are nailed down. */ 1551 _bfd_coff_get_external_symbols (abfd); 1552 1553 /* Rummage around all the relocs and map the toc. */ 1554 sec = abfd->sections; 1555 1556 if (sec == 0) 1557 return TRUE; 1558 1559 for (; sec != 0; sec = sec->next) 1560 { 1561 if (sec->reloc_count == 0) 1562 continue; 1563 1564 /* load the relocs */ 1565 /* FIXME: there may be a storage leak here */ 1566 i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0); 1567 1568 if (i == 0) 1569 abort (); 1570 1571 for (rel = i; rel < i + sec->reloc_count; ++rel) 1572 { 1573 unsigned short r_type = EXTRACT_TYPE (rel->r_type); 1574 unsigned short r_flags = EXTRACT_FLAGS (rel->r_type); 1575 bfd_boolean ok = TRUE; 1576 1577 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, rel); 1578 1579 switch(r_type) 1580 { 1581 case IMAGE_REL_PPC_TOCREL16: 1582 /* If TOCDEFN is on, ignore as someone else has allocated the 1583 toc entry. */ 1584 if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN) 1585 ok = ppc_record_toc_entry(abfd, info, sec, 1586 rel->r_symndx, default_toc); 1587 if (!ok) 1588 return FALSE; 1589 break; 1590 case IMAGE_REL_PPC_IMGLUE: 1591 ppc_mark_symbol_as_glue (abfd, rel->r_symndx, rel); 1592 break; 1593 default: 1594 break; 1595 } 1596 } 1597 } 1598 1599 return TRUE; 1600} 1601 1602#endif 1603 1604static bfd_reloc_status_type 1605ppc_refhi_reloc (bfd *abfd ATTRIBUTE_UNUSED, 1606 arelent *reloc_entry ATTRIBUTE_UNUSED, 1607 asymbol *symbol ATTRIBUTE_UNUSED, 1608 void * data ATTRIBUTE_UNUSED, 1609 asection *input_section ATTRIBUTE_UNUSED, 1610 bfd *output_bfd, 1611 char **error_message ATTRIBUTE_UNUSED) 1612{ 1613 UN_IMPL("REFHI"); 1614 DUMP_RELOC("REFHI",reloc_entry); 1615 1616 if (output_bfd == (bfd *) NULL) 1617 return bfd_reloc_continue; 1618 1619 return bfd_reloc_undefined; 1620} 1621 1622static bfd_reloc_status_type 1623ppc_pair_reloc (bfd *abfd ATTRIBUTE_UNUSED, 1624 arelent *reloc_entry ATTRIBUTE_UNUSED, 1625 asymbol *symbol ATTRIBUTE_UNUSED, 1626 void * data ATTRIBUTE_UNUSED, 1627 asection *input_section ATTRIBUTE_UNUSED, 1628 bfd *output_bfd, 1629 char **error_message ATTRIBUTE_UNUSED) 1630{ 1631 UN_IMPL("PAIR"); 1632 DUMP_RELOC("PAIR",reloc_entry); 1633 1634 if (output_bfd == (bfd *) NULL) 1635 return bfd_reloc_continue; 1636 1637 return bfd_reloc_undefined; 1638} 1639 1640static bfd_reloc_status_type 1641ppc_toc16_reloc (bfd *abfd ATTRIBUTE_UNUSED, 1642 arelent *reloc_entry ATTRIBUTE_UNUSED, 1643 asymbol *symbol ATTRIBUTE_UNUSED, 1644 void * data ATTRIBUTE_UNUSED, 1645 asection *input_section ATTRIBUTE_UNUSED, 1646 bfd *output_bfd, 1647 char **error_message ATTRIBUTE_UNUSED) 1648{ 1649 UN_IMPL ("TOCREL16"); 1650 DUMP_RELOC ("TOCREL16",reloc_entry); 1651 1652 if (output_bfd == (bfd *) NULL) 1653 return bfd_reloc_continue; 1654 1655 return bfd_reloc_ok; 1656} 1657 1658static bfd_reloc_status_type 1659ppc_secrel_reloc (bfd *abfd ATTRIBUTE_UNUSED, 1660 arelent *reloc_entry ATTRIBUTE_UNUSED, 1661 asymbol *symbol ATTRIBUTE_UNUSED, 1662 void * data ATTRIBUTE_UNUSED, 1663 asection *input_section ATTRIBUTE_UNUSED, 1664 bfd *output_bfd, 1665 char **error_message ATTRIBUTE_UNUSED) 1666{ 1667 UN_IMPL("SECREL"); 1668 DUMP_RELOC("SECREL",reloc_entry); 1669 1670 if (output_bfd == (bfd *) NULL) 1671 return bfd_reloc_continue; 1672 1673 return bfd_reloc_ok; 1674} 1675 1676static bfd_reloc_status_type 1677ppc_section_reloc (bfd *abfd ATTRIBUTE_UNUSED, 1678 arelent *reloc_entry ATTRIBUTE_UNUSED, 1679 asymbol *symbol ATTRIBUTE_UNUSED, 1680 void * data ATTRIBUTE_UNUSED, 1681 asection *input_section ATTRIBUTE_UNUSED, 1682 bfd *output_bfd, 1683 char **error_message ATTRIBUTE_UNUSED) 1684{ 1685 UN_IMPL("SECTION"); 1686 DUMP_RELOC("SECTION",reloc_entry); 1687 1688 if (output_bfd == (bfd *) NULL) 1689 return bfd_reloc_continue; 1690 1691 return bfd_reloc_ok; 1692} 1693 1694static bfd_reloc_status_type 1695ppc_imglue_reloc (bfd *abfd ATTRIBUTE_UNUSED, 1696 arelent *reloc_entry ATTRIBUTE_UNUSED, 1697 asymbol *symbol ATTRIBUTE_UNUSED, 1698 void * data ATTRIBUTE_UNUSED, 1699 asection *input_section ATTRIBUTE_UNUSED, 1700 bfd *output_bfd, 1701 char **error_message ATTRIBUTE_UNUSED) 1702 1703{ 1704 UN_IMPL("IMGLUE"); 1705 DUMP_RELOC("IMGLUE",reloc_entry); 1706 1707 if (output_bfd == (bfd *) NULL) 1708 return bfd_reloc_continue; 1709 1710 return bfd_reloc_ok; 1711} 1712 1713#define MAX_RELOC_INDEX \ 1714 (sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]) - 1) 1715 1716/* FIXME: There is a possibility that when we read in a reloc from a file, 1717 that there are some bits encoded in the upper portion of the 1718 type field. Not yet implemented. */ 1719 1720static void 1721ppc_coff_rtype2howto (arelent *relent, struct internal_reloc *internal) 1722{ 1723 /* We can encode one of three things in the type field, aside from the 1724 type: 1725 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction 1726 value, rather than an addition value 1727 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that 1728 the branch is expected to be taken or not. 1729 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file 1730 For now, we just strip this stuff to find the type, and ignore it other 1731 than that. */ 1732 reloc_howto_type *howto; 1733 unsigned short r_type = EXTRACT_TYPE (internal->r_type); 1734 unsigned short r_flags = EXTRACT_FLAGS(internal->r_type); 1735 unsigned short junk = EXTRACT_JUNK (internal->r_type); 1736 1737 /* The masking process only slices off the bottom byte for r_type. */ 1738 if ( r_type > MAX_RELOC_INDEX ) 1739 abort (); 1740 1741 /* Check for absolute crap. */ 1742 if (junk != 0) 1743 abort (); 1744 1745 switch(r_type) 1746 { 1747 case IMAGE_REL_PPC_ADDR16: 1748 case IMAGE_REL_PPC_REL24: 1749 case IMAGE_REL_PPC_ADDR24: 1750 case IMAGE_REL_PPC_ADDR32: 1751 case IMAGE_REL_PPC_IFGLUE: 1752 case IMAGE_REL_PPC_ADDR32NB: 1753 case IMAGE_REL_PPC_SECTION: 1754 case IMAGE_REL_PPC_SECREL: 1755 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal); 1756 howto = ppc_coff_howto_table + r_type; 1757 break; 1758 case IMAGE_REL_PPC_IMGLUE: 1759 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal); 1760 howto = ppc_coff_howto_table + r_type; 1761 break; 1762 case IMAGE_REL_PPC_TOCREL16: 1763 DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal); 1764 if (r_flags & IMAGE_REL_PPC_TOCDEFN) 1765 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; 1766 else 1767 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; 1768 break; 1769 default: 1770 _bfd_error_handler 1771 /* xgettext: c-format */ 1772 (_("warning: unsupported reloc %s [%d] used -- it may not work"), 1773 ppc_coff_howto_table[r_type].name, r_type); 1774 howto = ppc_coff_howto_table + r_type; 1775 break; 1776 } 1777 1778 relent->howto = howto; 1779} 1780 1781static reloc_howto_type * 1782coff_ppc_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED, 1783 asection *sec, 1784 struct internal_reloc *rel, 1785 struct coff_link_hash_entry *h ATTRIBUTE_UNUSED, 1786 struct internal_syment *sym ATTRIBUTE_UNUSED, 1787 bfd_vma *addendp) 1788{ 1789 reloc_howto_type *howto; 1790 1791 /* We can encode one of three things in the type field, aside from the 1792 type: 1793 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction 1794 value, rather than an addition value 1795 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that 1796 the branch is expected to be taken or not. 1797 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file 1798 For now, we just strip this stuff to find the type, and ignore it other 1799 than that. */ 1800 1801 unsigned short r_type = EXTRACT_TYPE (rel->r_type); 1802 unsigned short r_flags = EXTRACT_FLAGS (rel->r_type); 1803 unsigned short junk = EXTRACT_JUNK (rel->r_type); 1804 1805 /* The masking process only slices off the bottom byte for r_type. */ 1806 if (r_type > MAX_RELOC_INDEX) 1807 abort (); 1808 1809 /* Check for absolute crap. */ 1810 if (junk != 0) 1811 abort (); 1812 1813 switch(r_type) 1814 { 1815 case IMAGE_REL_PPC_ADDR32NB: 1816 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); 1817 *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; 1818 howto = ppc_coff_howto_table + r_type; 1819 break; 1820 case IMAGE_REL_PPC_TOCREL16: 1821 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); 1822 if (r_flags & IMAGE_REL_PPC_TOCDEFN) 1823 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; 1824 else 1825 howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; 1826 break; 1827 case IMAGE_REL_PPC_ADDR16: 1828 case IMAGE_REL_PPC_REL24: 1829 case IMAGE_REL_PPC_ADDR24: 1830 case IMAGE_REL_PPC_ADDR32: 1831 case IMAGE_REL_PPC_IFGLUE: 1832 case IMAGE_REL_PPC_SECTION: 1833 case IMAGE_REL_PPC_SECREL: 1834 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); 1835 howto = ppc_coff_howto_table + r_type; 1836 break; 1837 case IMAGE_REL_PPC_IMGLUE: 1838 DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); 1839 howto = ppc_coff_howto_table + r_type; 1840 break; 1841 default: 1842 _bfd_error_handler 1843 /* xgettext: c-format */ 1844 (_("warning: unsupported reloc %s [%d] used -- it may not work"), 1845 ppc_coff_howto_table[r_type].name, r_type); 1846 howto = ppc_coff_howto_table + r_type; 1847 break; 1848 } 1849 1850 return howto; 1851} 1852 1853/* A cheesy little macro to make the code a little more readable. */ 1854#define HOW2MAP(bfd_rtype,ppc_rtype) \ 1855 case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype] 1856 1857static reloc_howto_type * 1858ppc_coff_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1859 bfd_reloc_code_real_type code) 1860{ 1861 switch (code) 1862 { 1863 HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE); 1864 HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE); 1865 HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16); 1866 HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24); 1867 HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24); 1868 HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16); 1869 HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN); 1870 HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32); 1871 HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB); 1872 default: 1873 return NULL; 1874 } 1875} 1876#undef HOW2MAP 1877 1878static reloc_howto_type * 1879ppc_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, 1880 const char *r_name) 1881{ 1882 unsigned int i; 1883 1884 for (i = 0; 1885 i < sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]); 1886 i++) 1887 if (ppc_coff_howto_table[i].name != NULL 1888 && strcasecmp (ppc_coff_howto_table[i].name, r_name) == 0) 1889 return &ppc_coff_howto_table[i]; 1890 1891 return NULL; 1892} 1893 1894/* Tailor coffcode.h -- macro heaven. */ 1895 1896#define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst) 1897 1898/* We use the special COFF backend linker, with our own special touch. */ 1899 1900#define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup 1901#define coff_bfd_reloc_name_lookup ppc_coff_reloc_name_lookup 1902#define coff_rtype_to_howto coff_ppc_rtype_to_howto 1903#define coff_relocate_section coff_ppc_relocate_section 1904#define coff_bfd_final_link ppc_bfd_coff_final_link 1905 1906#ifndef COFF_IMAGE_WITH_PE 1907#endif 1908 1909#define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;} 1910 1911#define COFF_PAGE_SIZE 0x1000 1912 1913/* FIXME: This controls some code that used to be in peicode.h and is 1914 now in peigen.c. It will not control the code in peigen.c. If 1915 anybody wants to get this working, you will need to fix that. */ 1916#define POWERPC_LE_PE 1917 1918#define COFF_SECTION_ALIGNMENT_ENTRIES \ 1919{ COFF_SECTION_NAME_EXACT_MATCH (".idata$2"), \ 1920 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ 1921{ COFF_SECTION_NAME_EXACT_MATCH (".idata$3"), \ 1922 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ 1923{ COFF_SECTION_NAME_EXACT_MATCH (".idata$4"), \ 1924 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ 1925{ COFF_SECTION_NAME_EXACT_MATCH (".idata$5"), \ 1926 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ 1927{ COFF_SECTION_NAME_EXACT_MATCH (".idata$6"), \ 1928 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }, \ 1929{ COFF_SECTION_NAME_EXACT_MATCH (".reloc"), \ 1930 COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 } 1931 1932#include "coffcode.h" 1933 1934#ifndef COFF_IMAGE_WITH_PE 1935 1936static bfd_boolean 1937ppc_do_last (bfd *abfd) 1938{ 1939 if (abfd == bfd_of_toc_owner) 1940 return TRUE; 1941 else 1942 return FALSE; 1943} 1944 1945static bfd * 1946ppc_get_last (void) 1947{ 1948 return bfd_of_toc_owner; 1949} 1950 1951/* This piece of machinery exists only to guarantee that the bfd that holds 1952 the toc section is written last. 1953 1954 This does depend on bfd_make_section attaching a new section to the 1955 end of the section list for the bfd. 1956 1957 This is otherwise intended to be functionally the same as 1958 cofflink.c:_bfd_coff_final_link(). It is specifically different only 1959 where the POWERPC_LE_PE macro modifies the code. It is left in as a 1960 precise form of comment. krk@cygnus.com */ 1961 1962/* Do the final link step. */ 1963 1964bfd_boolean 1965ppc_bfd_coff_final_link (bfd *abfd, struct bfd_link_info *info) 1966{ 1967 bfd_size_type symesz; 1968 struct coff_final_link_info flaginfo; 1969 bfd_boolean debug_merge_allocated; 1970 asection *o; 1971 struct bfd_link_order *p; 1972 bfd_size_type max_sym_count; 1973 bfd_size_type max_lineno_count; 1974 bfd_size_type max_reloc_count; 1975 bfd_size_type max_output_reloc_count; 1976 bfd_size_type max_contents_size; 1977 file_ptr rel_filepos; 1978 unsigned int relsz; 1979 file_ptr line_filepos; 1980 unsigned int linesz; 1981 bfd *sub; 1982 bfd_byte *external_relocs = NULL; 1983 char strbuf[STRING_SIZE_SIZE]; 1984 bfd_size_type amt; 1985 1986 symesz = bfd_coff_symesz (abfd); 1987 1988 flaginfo.info = info; 1989 flaginfo.output_bfd = abfd; 1990 flaginfo.strtab = NULL; 1991 flaginfo.section_info = NULL; 1992 flaginfo.last_file_index = -1; 1993 flaginfo.last_bf_index = -1; 1994 flaginfo.internal_syms = NULL; 1995 flaginfo.sec_ptrs = NULL; 1996 flaginfo.sym_indices = NULL; 1997 flaginfo.outsyms = NULL; 1998 flaginfo.linenos = NULL; 1999 flaginfo.contents = NULL; 2000 flaginfo.external_relocs = NULL; 2001 flaginfo.internal_relocs = NULL; 2002 debug_merge_allocated = FALSE; 2003 2004 coff_data (abfd)->link_info = info; 2005 2006 flaginfo.strtab = _bfd_stringtab_init (); 2007 if (flaginfo.strtab == NULL) 2008 goto error_return; 2009 2010 if (! coff_debug_merge_hash_table_init (&flaginfo.debug_merge)) 2011 goto error_return; 2012 debug_merge_allocated = TRUE; 2013 2014 /* Compute the file positions for all the sections. */ 2015 if (! abfd->output_has_begun) 2016 { 2017 if (! bfd_coff_compute_section_file_positions (abfd)) 2018 return FALSE; 2019 } 2020 2021 /* Count the line numbers and relocation entries required for the 2022 output file. Set the file positions for the relocs. */ 2023 rel_filepos = obj_relocbase (abfd); 2024 relsz = bfd_coff_relsz (abfd); 2025 max_contents_size = 0; 2026 max_lineno_count = 0; 2027 max_reloc_count = 0; 2028 2029 for (o = abfd->sections; o != NULL; o = o->next) 2030 { 2031 o->reloc_count = 0; 2032 o->lineno_count = 0; 2033 2034 for (p = o->map_head.link_order; p != NULL; p = p->next) 2035 { 2036 if (p->type == bfd_indirect_link_order) 2037 { 2038 asection *sec; 2039 2040 sec = p->u.indirect.section; 2041 2042 /* Mark all sections which are to be included in the 2043 link. This will normally be every section. We need 2044 to do this so that we can identify any sections which 2045 the linker has decided to not include. */ 2046 sec->linker_mark = TRUE; 2047 2048 if (info->strip == strip_none 2049 || info->strip == strip_some) 2050 o->lineno_count += sec->lineno_count; 2051 2052 if (bfd_link_relocatable (info)) 2053 o->reloc_count += sec->reloc_count; 2054 2055 if (sec->rawsize > max_contents_size) 2056 max_contents_size = sec->rawsize; 2057 if (sec->size > max_contents_size) 2058 max_contents_size = sec->size; 2059 if (sec->lineno_count > max_lineno_count) 2060 max_lineno_count = sec->lineno_count; 2061 if (sec->reloc_count > max_reloc_count) 2062 max_reloc_count = sec->reloc_count; 2063 } 2064 else if (bfd_link_relocatable (info) 2065 && (p->type == bfd_section_reloc_link_order 2066 || p->type == bfd_symbol_reloc_link_order)) 2067 ++o->reloc_count; 2068 } 2069 if (o->reloc_count == 0) 2070 o->rel_filepos = 0; 2071 else 2072 { 2073 o->flags |= SEC_RELOC; 2074 o->rel_filepos = rel_filepos; 2075 rel_filepos += o->reloc_count * relsz; 2076 } 2077 } 2078 2079 /* If doing a relocatable link, allocate space for the pointers we 2080 need to keep. */ 2081 if (bfd_link_relocatable (info)) 2082 { 2083 unsigned int i; 2084 2085 /* We use section_count + 1, rather than section_count, because 2086 the target_index fields are 1 based. */ 2087 amt = abfd->section_count + 1; 2088 amt *= sizeof (struct coff_link_section_info); 2089 flaginfo.section_info = (struct coff_link_section_info *) bfd_malloc (amt); 2090 2091 if (flaginfo.section_info == NULL) 2092 goto error_return; 2093 2094 for (i = 0; i <= abfd->section_count; i++) 2095 { 2096 flaginfo.section_info[i].relocs = NULL; 2097 flaginfo.section_info[i].rel_hashes = NULL; 2098 } 2099 } 2100 2101 /* We now know the size of the relocs, so we can determine the file 2102 positions of the line numbers. */ 2103 line_filepos = rel_filepos; 2104 linesz = bfd_coff_linesz (abfd); 2105 max_output_reloc_count = 0; 2106 2107 for (o = abfd->sections; o != NULL; o = o->next) 2108 { 2109 if (o->lineno_count == 0) 2110 o->line_filepos = 0; 2111 else 2112 { 2113 o->line_filepos = line_filepos; 2114 line_filepos += o->lineno_count * linesz; 2115 } 2116 2117 if (o->reloc_count != 0) 2118 { 2119 /* We don't know the indices of global symbols until we have 2120 written out all the local symbols. For each section in 2121 the output file, we keep an array of pointers to hash 2122 table entries. Each entry in the array corresponds to a 2123 reloc. When we find a reloc against a global symbol, we 2124 set the corresponding entry in this array so that we can 2125 fix up the symbol index after we have written out all the 2126 local symbols. 2127 2128 Because of this problem, we also keep the relocs in 2129 memory until the end of the link. This wastes memory, 2130 but only when doing a relocatable link, which is not the 2131 common case. */ 2132 BFD_ASSERT (bfd_link_relocatable (info)); 2133 amt = o->reloc_count; 2134 amt *= sizeof (struct internal_reloc); 2135 flaginfo.section_info[o->target_index].relocs = 2136 (struct internal_reloc *) bfd_malloc (amt); 2137 amt = o->reloc_count; 2138 amt *= sizeof (struct coff_link_hash_entry *); 2139 flaginfo.section_info[o->target_index].rel_hashes = 2140 (struct coff_link_hash_entry **) bfd_malloc (amt); 2141 if (flaginfo.section_info[o->target_index].relocs == NULL 2142 || flaginfo.section_info[o->target_index].rel_hashes == NULL) 2143 goto error_return; 2144 2145 if (o->reloc_count > max_output_reloc_count) 2146 max_output_reloc_count = o->reloc_count; 2147 } 2148 2149 /* Reset the reloc and lineno counts, so that we can use them to 2150 count the number of entries we have output so far. */ 2151 o->reloc_count = 0; 2152 o->lineno_count = 0; 2153 } 2154 2155 obj_sym_filepos (abfd) = line_filepos; 2156 2157 /* Figure out the largest number of symbols in an input BFD. Take 2158 the opportunity to clear the output_has_begun fields of all the 2159 input BFD's. */ 2160 max_sym_count = 0; 2161 for (sub = info->input_bfds; sub != NULL; sub = sub->link.next) 2162 { 2163 bfd_size_type sz; 2164 2165 sub->output_has_begun = FALSE; 2166 sz = obj_raw_syment_count (sub); 2167 if (sz > max_sym_count) 2168 max_sym_count = sz; 2169 } 2170 2171 /* Allocate some buffers used while linking. */ 2172 amt = max_sym_count * sizeof (struct internal_syment); 2173 flaginfo.internal_syms = (struct internal_syment *) bfd_malloc (amt); 2174 amt = max_sym_count * sizeof (asection *); 2175 flaginfo.sec_ptrs = (asection **) bfd_malloc (amt); 2176 amt = max_sym_count * sizeof (long); 2177 flaginfo.sym_indices = (long *) bfd_malloc (amt); 2178 amt = (max_sym_count + 1) * symesz; 2179 flaginfo.outsyms = (bfd_byte *) bfd_malloc (amt); 2180 amt = max_lineno_count * bfd_coff_linesz (abfd); 2181 flaginfo.linenos = (bfd_byte *) bfd_malloc (amt); 2182 flaginfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); 2183 flaginfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz); 2184 if (! bfd_link_relocatable (info)) 2185 { 2186 amt = max_reloc_count * sizeof (struct internal_reloc); 2187 flaginfo.internal_relocs = (struct internal_reloc *) bfd_malloc (amt); 2188 } 2189 if ((flaginfo.internal_syms == NULL && max_sym_count > 0) 2190 || (flaginfo.sec_ptrs == NULL && max_sym_count > 0) 2191 || (flaginfo.sym_indices == NULL && max_sym_count > 0) 2192 || flaginfo.outsyms == NULL 2193 || (flaginfo.linenos == NULL && max_lineno_count > 0) 2194 || (flaginfo.contents == NULL && max_contents_size > 0) 2195 || (flaginfo.external_relocs == NULL && max_reloc_count > 0) 2196 || (! bfd_link_relocatable (info) 2197 && flaginfo.internal_relocs == NULL 2198 && max_reloc_count > 0)) 2199 goto error_return; 2200 2201 /* We now know the position of everything in the file, except that 2202 we don't know the size of the symbol table and therefore we don't 2203 know where the string table starts. We just build the string 2204 table in memory as we go along. We process all the relocations 2205 for a single input file at once. */ 2206 obj_raw_syment_count (abfd) = 0; 2207 2208 if (coff_backend_info (abfd)->_bfd_coff_start_final_link) 2209 { 2210 if (! bfd_coff_start_final_link (abfd, info)) 2211 goto error_return; 2212 } 2213 2214 for (o = abfd->sections; o != NULL; o = o->next) 2215 { 2216 for (p = o->map_head.link_order; p != NULL; p = p->next) 2217 { 2218 if (p->type == bfd_indirect_link_order 2219 && (bfd_get_flavour (p->u.indirect.section->owner) 2220 == bfd_target_coff_flavour)) 2221 { 2222 sub = p->u.indirect.section->owner; 2223#ifdef POWERPC_LE_PE 2224 if (! sub->output_has_begun && !ppc_do_last(sub)) 2225#else 2226 if (! sub->output_has_begun) 2227#endif 2228 { 2229 if (! _bfd_coff_link_input_bfd (&flaginfo, sub)) 2230 goto error_return; 2231 sub->output_has_begun = TRUE; 2232 } 2233 } 2234 else if (p->type == bfd_section_reloc_link_order 2235 || p->type == bfd_symbol_reloc_link_order) 2236 { 2237 if (! _bfd_coff_reloc_link_order (abfd, &flaginfo, o, p)) 2238 goto error_return; 2239 } 2240 else 2241 { 2242 if (! _bfd_default_link_order (abfd, info, o, p)) 2243 goto error_return; 2244 } 2245 } 2246 } 2247 2248#ifdef POWERPC_LE_PE 2249 { 2250 bfd* last_one = ppc_get_last(); 2251 if (last_one) 2252 { 2253 if (! _bfd_coff_link_input_bfd (&flaginfo, last_one)) 2254 goto error_return; 2255 } 2256 last_one->output_has_begun = TRUE; 2257 } 2258#endif 2259 2260 /* Free up the buffers used by _bfd_coff_link_input_bfd. */ 2261 coff_debug_merge_hash_table_free (&flaginfo.debug_merge); 2262 debug_merge_allocated = FALSE; 2263 2264 if (flaginfo.internal_syms != NULL) 2265 { 2266 free (flaginfo.internal_syms); 2267 flaginfo.internal_syms = NULL; 2268 } 2269 if (flaginfo.sec_ptrs != NULL) 2270 { 2271 free (flaginfo.sec_ptrs); 2272 flaginfo.sec_ptrs = NULL; 2273 } 2274 if (flaginfo.sym_indices != NULL) 2275 { 2276 free (flaginfo.sym_indices); 2277 flaginfo.sym_indices = NULL; 2278 } 2279 if (flaginfo.linenos != NULL) 2280 { 2281 free (flaginfo.linenos); 2282 flaginfo.linenos = NULL; 2283 } 2284 if (flaginfo.contents != NULL) 2285 { 2286 free (flaginfo.contents); 2287 flaginfo.contents = NULL; 2288 } 2289 if (flaginfo.external_relocs != NULL) 2290 { 2291 free (flaginfo.external_relocs); 2292 flaginfo.external_relocs = NULL; 2293 } 2294 if (flaginfo.internal_relocs != NULL) 2295 { 2296 free (flaginfo.internal_relocs); 2297 flaginfo.internal_relocs = NULL; 2298 } 2299 2300 /* The value of the last C_FILE symbol is supposed to be the symbol 2301 index of the first external symbol. Write it out again if 2302 necessary. */ 2303 if (flaginfo.last_file_index != -1 2304 && (unsigned int) flaginfo.last_file.n_value != obj_raw_syment_count (abfd)) 2305 { 2306 file_ptr pos; 2307 2308 flaginfo.last_file.n_value = obj_raw_syment_count (abfd); 2309 bfd_coff_swap_sym_out (abfd, &flaginfo.last_file, 2310 flaginfo.outsyms); 2311 pos = obj_sym_filepos (abfd) + flaginfo.last_file_index * symesz; 2312 if (bfd_seek (abfd, pos, SEEK_SET) != 0 2313 || bfd_bwrite (flaginfo.outsyms, symesz, abfd) != symesz) 2314 return FALSE; 2315 } 2316 2317 /* Write out the global symbols. */ 2318 flaginfo.failed = FALSE; 2319 bfd_hash_traverse (&info->hash->table, _bfd_coff_write_global_sym, &flaginfo); 2320 if (flaginfo.failed) 2321 goto error_return; 2322 2323 /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ 2324 if (flaginfo.outsyms != NULL) 2325 { 2326 free (flaginfo.outsyms); 2327 flaginfo.outsyms = NULL; 2328 } 2329 2330 if (bfd_link_relocatable (info)) 2331 { 2332 /* Now that we have written out all the global symbols, we know 2333 the symbol indices to use for relocs against them, and we can 2334 finally write out the relocs. */ 2335 amt = max_output_reloc_count * relsz; 2336 external_relocs = (bfd_byte *) bfd_malloc (amt); 2337 if (external_relocs == NULL) 2338 goto error_return; 2339 2340 for (o = abfd->sections; o != NULL; o = o->next) 2341 { 2342 struct internal_reloc *irel; 2343 struct internal_reloc *irelend; 2344 struct coff_link_hash_entry **rel_hash; 2345 bfd_byte *erel; 2346 2347 if (o->reloc_count == 0) 2348 continue; 2349 2350 irel = flaginfo.section_info[o->target_index].relocs; 2351 irelend = irel + o->reloc_count; 2352 rel_hash = flaginfo.section_info[o->target_index].rel_hashes; 2353 erel = external_relocs; 2354 for (; irel < irelend; irel++, rel_hash++, erel += relsz) 2355 { 2356 if (*rel_hash != NULL) 2357 { 2358 BFD_ASSERT ((*rel_hash)->indx >= 0); 2359 irel->r_symndx = (*rel_hash)->indx; 2360 } 2361 bfd_coff_swap_reloc_out (abfd, irel, erel); 2362 } 2363 2364 amt = relsz * o->reloc_count; 2365 if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 2366 || bfd_bwrite (external_relocs, amt, abfd) != amt) 2367 goto error_return; 2368 } 2369 2370 free (external_relocs); 2371 external_relocs = NULL; 2372 } 2373 2374 /* Free up the section information. */ 2375 if (flaginfo.section_info != NULL) 2376 { 2377 unsigned int i; 2378 2379 for (i = 0; i < abfd->section_count; i++) 2380 { 2381 if (flaginfo.section_info[i].relocs != NULL) 2382 free (flaginfo.section_info[i].relocs); 2383 if (flaginfo.section_info[i].rel_hashes != NULL) 2384 free (flaginfo.section_info[i].rel_hashes); 2385 } 2386 free (flaginfo.section_info); 2387 flaginfo.section_info = NULL; 2388 } 2389 2390 /* If we have optimized stabs strings, output them. */ 2391 if (coff_hash_table (info)->stab_info.stabstr != NULL) 2392 { 2393 if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info)) 2394 return FALSE; 2395 } 2396 2397 /* Write out the string table. */ 2398 if (obj_raw_syment_count (abfd) != 0) 2399 { 2400 file_ptr pos; 2401 2402 pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz; 2403 if (bfd_seek (abfd, pos, SEEK_SET) != 0) 2404 return FALSE; 2405 2406#if STRING_SIZE_SIZE == 4 2407 H_PUT_32 (abfd, 2408 _bfd_stringtab_size (flaginfo.strtab) + STRING_SIZE_SIZE, 2409 strbuf); 2410#else 2411 #error Change H_PUT_32 above 2412#endif 2413 2414 if (bfd_bwrite (strbuf, (bfd_size_type) STRING_SIZE_SIZE, abfd) 2415 != STRING_SIZE_SIZE) 2416 return FALSE; 2417 2418 if (! _bfd_stringtab_emit (abfd, flaginfo.strtab)) 2419 return FALSE; 2420 } 2421 2422 _bfd_stringtab_free (flaginfo.strtab); 2423 2424 /* Setting bfd_get_symcount to 0 will cause write_object_contents to 2425 not try to write out the symbols. */ 2426 bfd_get_symcount (abfd) = 0; 2427 2428 return TRUE; 2429 2430 error_return: 2431 if (debug_merge_allocated) 2432 coff_debug_merge_hash_table_free (&flaginfo.debug_merge); 2433 if (flaginfo.strtab != NULL) 2434 _bfd_stringtab_free (flaginfo.strtab); 2435 if (flaginfo.section_info != NULL) 2436 { 2437 unsigned int i; 2438 2439 for (i = 0; i < abfd->section_count; i++) 2440 { 2441 if (flaginfo.section_info[i].relocs != NULL) 2442 free (flaginfo.section_info[i].relocs); 2443 if (flaginfo.section_info[i].rel_hashes != NULL) 2444 free (flaginfo.section_info[i].rel_hashes); 2445 } 2446 free (flaginfo.section_info); 2447 } 2448 if (flaginfo.internal_syms != NULL) 2449 free (flaginfo.internal_syms); 2450 if (flaginfo.sec_ptrs != NULL) 2451 free (flaginfo.sec_ptrs); 2452 if (flaginfo.sym_indices != NULL) 2453 free (flaginfo.sym_indices); 2454 if (flaginfo.outsyms != NULL) 2455 free (flaginfo.outsyms); 2456 if (flaginfo.linenos != NULL) 2457 free (flaginfo.linenos); 2458 if (flaginfo.contents != NULL) 2459 free (flaginfo.contents); 2460 if (flaginfo.external_relocs != NULL) 2461 free (flaginfo.external_relocs); 2462 if (flaginfo.internal_relocs != NULL) 2463 free (flaginfo.internal_relocs); 2464 if (external_relocs != NULL) 2465 free (external_relocs); 2466 return FALSE; 2467} 2468#endif 2469 2470/* Forward declaration for use by alternative_target field. */ 2471#ifdef TARGET_BIG_SYM 2472extern const bfd_target TARGET_BIG_SYM; 2473#endif 2474 2475/* The transfer vectors that lead the outside world to all of the above. */ 2476 2477#ifdef TARGET_LITTLE_SYM 2478const bfd_target TARGET_LITTLE_SYM = 2479{ 2480 TARGET_LITTLE_NAME, /* name or coff-arm-little */ 2481 bfd_target_coff_flavour, 2482 BFD_ENDIAN_LITTLE, /* data byte order is little */ 2483 BFD_ENDIAN_LITTLE, /* header byte order is little */ 2484 2485 (HAS_RELOC | EXEC_P | /* FIXME: object flags */ 2486 HAS_LINENO | HAS_DEBUG | 2487 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), 2488 2489#ifndef COFF_WITH_PE 2490 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY 2491 | SEC_RELOC), /* section flags */ 2492#else 2493 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY 2494 | SEC_RELOC | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 2495#endif 2496 2497 0, /* leading char */ 2498 '/', /* ar_pad_char */ 2499 15, /* ar_max_namelen??? FIXMEmgo */ 2500 0, /* match priority. */ 2501 2502 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 2503 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 2504 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ 2505 2506 bfd_getl64, bfd_getl_signed_64, bfd_putl64, 2507 bfd_getl32, bfd_getl_signed_32, bfd_putl32, 2508 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ 2509 2510 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ 2511 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, 2512 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ 2513 bfd_false}, 2514 {bfd_false, coff_write_object_contents, /* bfd_write_contents */ 2515 _bfd_write_archive_contents, bfd_false}, 2516 2517 BFD_JUMP_TABLE_GENERIC (coff), 2518 BFD_JUMP_TABLE_COPY (coff), 2519 BFD_JUMP_TABLE_CORE (_bfd_nocore), 2520 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 2521 BFD_JUMP_TABLE_SYMBOLS (coff), 2522 BFD_JUMP_TABLE_RELOCS (coff), 2523 BFD_JUMP_TABLE_WRITE (coff), 2524 BFD_JUMP_TABLE_LINK (coff), 2525 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), 2526 2527 /* Alternative_target. */ 2528#ifdef TARGET_BIG_SYM 2529 & TARGET_BIG_SYM, 2530#else 2531 NULL, 2532#endif 2533 2534 COFF_SWAP_TABLE 2535}; 2536#endif 2537 2538#ifdef TARGET_BIG_SYM 2539const bfd_target TARGET_BIG_SYM = 2540{ 2541 TARGET_BIG_NAME, 2542 bfd_target_coff_flavour, 2543 BFD_ENDIAN_BIG, /* data byte order is big */ 2544 BFD_ENDIAN_BIG, /* header byte order is big */ 2545 2546 (HAS_RELOC | EXEC_P | /* FIXME: object flags */ 2547 HAS_LINENO | HAS_DEBUG | 2548 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), 2549 2550#ifndef COFF_WITH_PE 2551 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY 2552 | SEC_RELOC), /* section flags */ 2553#else 2554 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY 2555 | SEC_RELOC | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), 2556#endif 2557 2558 0, /* leading char */ 2559 '/', /* ar_pad_char */ 2560 15, /* ar_max_namelen??? FIXMEmgo */ 2561 0, /* match priority. */ 2562 2563 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 2564 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 2565 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ 2566 2567 bfd_getb64, bfd_getb_signed_64, bfd_putb64, 2568 bfd_getb32, bfd_getb_signed_32, bfd_putb32, 2569 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ 2570 2571 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ 2572 bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, 2573 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ 2574 bfd_false}, 2575 {bfd_false, coff_write_object_contents, /* bfd_write_contents */ 2576 _bfd_write_archive_contents, bfd_false}, 2577 2578 BFD_JUMP_TABLE_GENERIC (coff), 2579 BFD_JUMP_TABLE_COPY (coff), 2580 BFD_JUMP_TABLE_CORE (_bfd_nocore), 2581 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), 2582 BFD_JUMP_TABLE_SYMBOLS (coff), 2583 BFD_JUMP_TABLE_RELOCS (coff), 2584 BFD_JUMP_TABLE_WRITE (coff), 2585 BFD_JUMP_TABLE_LINK (coff), 2586 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), 2587 2588 /* Alternative_target. */ 2589#ifdef TARGET_LITTLE_SYM 2590 & TARGET_LITTLE_SYM, 2591#else 2592 NULL, 2593#endif 2594 2595 COFF_SWAP_TABLE 2596}; 2597 2598#endif 2599