| 1 | /* BFD back-end for PowerPC Microsoft Portable Executable files. |
| 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
| 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | Original version pieced together by Kim Knuttila (krk@cygnus.com) |
| 7 | |
| 8 | There is nothing new under the sun. This file draws a lot on other |
| 9 | coff files, in particular, those for the rs/6000, alpha, mips, and |
| 10 | intel backends, and the PE work for the arm. |
| 11 | |
| 12 | This file is part of BFD, the Binary File Descriptor library. |
| 13 | |
| 14 | This program is free software; you can redistribute it and/or modify |
| 15 | it under the terms of the GNU General Public License as published by |
| 16 | the Free Software Foundation; either version 2 of the License, or |
| 17 | (at your option) any later version. |
| 18 | |
| 19 | This program is distributed in the hope that it will be useful, |
| 20 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | GNU General Public License for more details. |
| 23 | |
| 24 | You should have received a copy of the GNU General Public License |
| 25 | along with this program; if not, write to the Free Software |
| 26 | Foundation, 51 Franklin Street - Fifth Floor, |
| 27 | Boston, MA 02110-1301, USA. */ |
| 28 | |
| 29 | /* Current State: |
| 30 | - objdump works |
| 31 | - relocs generated by gas |
| 32 | - ld will link files, but they do not run. |
| 33 | - dlltool will not produce correct output in some .reloc cases, and will |
| 34 | not produce the right glue code for dll function calls. */ |
| 35 | |
| 36 | #include "sysdep.h" |
| 37 | #include "bfd.h" |
| 38 | #include "libbfd.h" |
| 39 | |
| 40 | #include "coff/powerpc.h" |
| 41 | #include "coff/internal.h" |
| 42 | |
| 43 | #include "coff/pe.h" |
| 44 | |
| 45 | #ifdef BADMAG |
| 46 | #undef BADMAG |
| 47 | #endif |
| 48 | |
| 49 | #define BADMAG(x) PPCBADMAG(x) |
| 50 | |
| 51 | #include "libcoff.h" |
| 52 | |
| 53 | /* This file is compiled more than once, but we only compile the |
| 54 | final_link routine once. */ |
| 55 | extern bfd_boolean ppc_bfd_coff_final_link |
| 56 | PARAMS ((bfd *, struct bfd_link_info *)); |
| 57 | extern void dump_toc PARAMS ((PTR)); |
| 58 | |
| 59 | /* The toc is a set of bfd_vma fields. We use the fact that valid |
| 60 | addresses are even (i.e. the bit representing "1" is off) to allow |
| 61 | us to encode a little extra information in the field |
| 62 | - Unallocated addresses are initialized to 1. |
| 63 | - Allocated addresses are even numbers. |
| 64 | The first time we actually write a reference to the toc in the bfd, |
| 65 | we want to record that fact in a fixup file (if it is asked for), so |
| 66 | we keep track of whether or not an address has been written by marking |
| 67 | the low order bit with a "1" upon writing. */ |
| 68 | |
| 69 | #define SET_UNALLOCATED(x) ((x) = 1) |
| 70 | #define IS_UNALLOCATED(x) ((x) == 1) |
| 71 | |
| 72 | #define IS_WRITTEN(x) ((x) & 1) |
| 73 | #define MARK_AS_WRITTEN(x) ((x) |= 1) |
| 74 | #define MAKE_ADDR_AGAIN(x) ((x) &= ~1) |
| 75 | |
| 76 | /* Turn on this check if you suspect something amiss in the hash tables. */ |
| 77 | #ifdef DEBUG_HASH |
| 78 | |
| 79 | /* Need a 7 char string for an eye catcher. */ |
| 80 | #define EYE "krkjunk" |
| 81 | |
| 82 | #define HASH_CHECK_DCL char eye_catcher[8]; |
| 83 | #define HASH_CHECK_INIT(ret) strcpy(ret->eye_catcher, EYE) |
| 84 | #define HASH_CHECK(addr) \ |
| 85 | if (strcmp(addr->eye_catcher, EYE) != 0) \ |
| 86 | { \ |
| 87 | fprintf (stderr,\ |
| 88 | _("File %s, line %d, Hash check failure, bad eye %8s\n"), \ |
| 89 | __FILE__, __LINE__, addr->eye_catcher); \ |
| 90 | abort (); \ |
| 91 | } |
| 92 | |
| 93 | #else |
| 94 | |
| 95 | #define HASH_CHECK_DCL |
| 96 | #define HASH_CHECK_INIT(ret) |
| 97 | #define HASH_CHECK(addr) |
| 98 | |
| 99 | #endif |
| 100 | |
| 101 | /* In order not to add an int to every hash table item for every coff |
| 102 | linker, we define our own hash table, derived from the coff one. */ |
| 103 | |
| 104 | /* PE linker hash table entries. */ |
| 105 | |
| 106 | struct ppc_coff_link_hash_entry |
| 107 | { |
| 108 | struct coff_link_hash_entry root; /* First entry, as required. */ |
| 109 | |
| 110 | /* As we wonder around the relocs, we'll keep the assigned toc_offset |
| 111 | here. */ |
| 112 | bfd_vma toc_offset; /* Our addition, as required. */ |
| 113 | int symbol_is_glue; |
| 114 | unsigned long int glue_insn; |
| 115 | |
| 116 | HASH_CHECK_DCL |
| 117 | }; |
| 118 | |
| 119 | /* PE linker hash table. */ |
| 120 | |
| 121 | struct ppc_coff_link_hash_table |
| 122 | { |
| 123 | struct coff_link_hash_table root; /* First entry, as required. */ |
| 124 | }; |
| 125 | |
| 126 | static struct bfd_hash_entry *ppc_coff_link_hash_newfunc |
| 127 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, |
| 128 | const char *)); |
| 129 | static struct bfd_link_hash_table *ppc_coff_link_hash_table_create |
| 130 | PARAMS ((bfd *)); |
| 131 | static bfd_boolean coff_ppc_relocate_section |
| 132 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
| 133 | struct internal_reloc *, struct internal_syment *, asection **)); |
| 134 | static reloc_howto_type *coff_ppc_rtype_to_howto |
| 135 | PARAMS ((bfd *, asection *, struct internal_reloc *, |
| 136 | struct coff_link_hash_entry *, struct internal_syment *, |
| 137 | bfd_vma *)); |
| 138 | |
| 139 | /* Routine to create an entry in the link hash table. */ |
| 140 | |
| 141 | static struct bfd_hash_entry * |
| 142 | ppc_coff_link_hash_newfunc (entry, table, string) |
| 143 | struct bfd_hash_entry *entry; |
| 144 | struct bfd_hash_table *table; |
| 145 | const char *string; |
| 146 | { |
| 147 | struct ppc_coff_link_hash_entry *ret = |
| 148 | (struct ppc_coff_link_hash_entry *) entry; |
| 149 | |
| 150 | /* Allocate the structure if it has not already been allocated by a |
| 151 | subclass. */ |
| 152 | if (ret == (struct ppc_coff_link_hash_entry *) NULL) |
| 153 | ret = (struct ppc_coff_link_hash_entry *) |
| 154 | bfd_hash_allocate (table, |
| 155 | sizeof (struct ppc_coff_link_hash_entry)); |
| 156 | |
| 157 | if (ret == (struct ppc_coff_link_hash_entry *) NULL) |
| 158 | return NULL; |
| 159 | |
| 160 | /* Call the allocation method of the superclass. */ |
| 161 | ret = ((struct ppc_coff_link_hash_entry *) |
| 162 | _bfd_coff_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
| 163 | table, string)); |
| 164 | |
| 165 | if (ret) |
| 166 | { |
| 167 | /* Initialize the local fields. */ |
| 168 | SET_UNALLOCATED (ret->toc_offset); |
| 169 | ret->symbol_is_glue = 0; |
| 170 | ret->glue_insn = 0; |
| 171 | |
| 172 | HASH_CHECK_INIT (ret); |
| 173 | } |
| 174 | |
| 175 | return (struct bfd_hash_entry *) ret; |
| 176 | } |
| 177 | |
| 178 | /* Initialize a PE linker hash table. */ |
| 179 | |
| 180 | static bfd_boolean |
| 181 | ppc_coff_link_hash_table_init (struct ppc_coff_link_hash_table *table, |
| 182 | bfd *abfd, |
| 183 | struct bfd_hash_entry *(*newfunc) (struct bfd_hash_entry *, |
| 184 | struct bfd_hash_table *, |
| 185 | const char *), |
| 186 | unsigned int entsize) |
| 187 | { |
| 188 | return _bfd_coff_link_hash_table_init (&table->root, abfd, newfunc, entsize); |
| 189 | } |
| 190 | |
| 191 | /* Create a PE linker hash table. */ |
| 192 | |
| 193 | static struct bfd_link_hash_table * |
| 194 | ppc_coff_link_hash_table_create (abfd) |
| 195 | bfd *abfd; |
| 196 | { |
| 197 | struct ppc_coff_link_hash_table *ret; |
| 198 | bfd_size_type amt = sizeof (struct ppc_coff_link_hash_table); |
| 199 | |
| 200 | ret = (struct ppc_coff_link_hash_table *) bfd_malloc (amt); |
| 201 | if (ret == NULL) |
| 202 | return NULL; |
| 203 | if (!ppc_coff_link_hash_table_init (ret, abfd, |
| 204 | ppc_coff_link_hash_newfunc, |
| 205 | sizeof (struct ppc_coff_link_hash_entry))) |
| 206 | { |
| 207 | free (ret); |
| 208 | return (struct bfd_link_hash_table *) NULL; |
| 209 | } |
| 210 | return &ret->root.root; |
| 211 | } |
| 212 | |
| 213 | /* Now, tailor coffcode.h to use our hash stuff. */ |
| 214 | |
| 215 | #define coff_bfd_link_hash_table_create ppc_coff_link_hash_table_create |
| 216 | \f |
| 217 | /* The nt loader points the toc register to &toc + 32768, in order to |
| 218 | use the complete range of a 16-bit displacement. We have to adjust |
| 219 | for this when we fix up loads displaced off the toc reg. */ |
| 220 | #define TOC_LOAD_ADJUSTMENT (-32768) |
| 221 | #define TOC_SECTION_NAME ".private.toc" |
| 222 | |
| 223 | /* The main body of code is in coffcode.h. */ |
| 224 | |
| 225 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (3) |
| 226 | |
| 227 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value |
| 228 | from smaller values. Start with zero, widen, *then* decrement. */ |
| 229 | #define MINUS_ONE (((bfd_vma)0) - 1) |
| 230 | |
| 231 | /* These should definitely go in a header file somewhere... */ |
| 232 | |
| 233 | /* NOP */ |
| 234 | #define IMAGE_REL_PPC_ABSOLUTE 0x0000 |
| 235 | |
| 236 | /* 64-bit address */ |
| 237 | #define IMAGE_REL_PPC_ADDR64 0x0001 |
| 238 | |
| 239 | /* 32-bit address */ |
| 240 | #define IMAGE_REL_PPC_ADDR32 0x0002 |
| 241 | |
| 242 | /* 26-bit address, shifted left 2 (branch absolute) */ |
| 243 | #define IMAGE_REL_PPC_ADDR24 0x0003 |
| 244 | |
| 245 | /* 16-bit address */ |
| 246 | #define IMAGE_REL_PPC_ADDR16 0x0004 |
| 247 | |
| 248 | /* 16-bit address, shifted left 2 (load doubleword) */ |
| 249 | #define IMAGE_REL_PPC_ADDR14 0x0005 |
| 250 | |
| 251 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ |
| 252 | #define IMAGE_REL_PPC_REL24 0x0006 |
| 253 | |
| 254 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ |
| 255 | #define IMAGE_REL_PPC_REL14 0x0007 |
| 256 | |
| 257 | /* 16-bit offset from TOC base */ |
| 258 | #define IMAGE_REL_PPC_TOCREL16 0x0008 |
| 259 | |
| 260 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ |
| 261 | #define IMAGE_REL_PPC_TOCREL14 0x0009 |
| 262 | |
| 263 | /* 32-bit addr w/o image base */ |
| 264 | #define IMAGE_REL_PPC_ADDR32NB 0x000A |
| 265 | |
| 266 | /* va of containing section (as in an image sectionhdr) */ |
| 267 | #define IMAGE_REL_PPC_SECREL 0x000B |
| 268 | |
| 269 | /* sectionheader number */ |
| 270 | #define IMAGE_REL_PPC_SECTION 0x000C |
| 271 | |
| 272 | /* substitute TOC restore instruction iff symbol is glue code */ |
| 273 | #define IMAGE_REL_PPC_IFGLUE 0x000D |
| 274 | |
| 275 | /* symbol is glue code; virtual address is TOC restore instruction */ |
| 276 | #define IMAGE_REL_PPC_IMGLUE 0x000E |
| 277 | |
| 278 | /* va of containing section (limited to 16 bits) */ |
| 279 | #define IMAGE_REL_PPC_SECREL16 0x000F |
| 280 | |
| 281 | /* Stuff to handle immediate data when the number of bits in the |
| 282 | data is greater than the number of bits in the immediate field |
| 283 | We need to do (usually) 32 bit arithmetic on 16 bit chunks. */ |
| 284 | #define IMAGE_REL_PPC_REFHI 0x0010 |
| 285 | #define IMAGE_REL_PPC_REFLO 0x0011 |
| 286 | #define IMAGE_REL_PPC_PAIR 0x0012 |
| 287 | |
| 288 | /* This is essentially the same as tocrel16, with TOCDEFN assumed. */ |
| 289 | #define IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 |
| 290 | |
| 291 | /* Flag bits in IMAGE_RELOCATION.TYPE. */ |
| 292 | |
| 293 | /* Subtract reloc value rather than adding it. */ |
| 294 | #define IMAGE_REL_PPC_NEG 0x0100 |
| 295 | |
| 296 | /* Fix branch prediction bit to predict branch taken. */ |
| 297 | #define IMAGE_REL_PPC_BRTAKEN 0x0200 |
| 298 | |
| 299 | /* Fix branch prediction bit to predict branch not taken. */ |
| 300 | #define IMAGE_REL_PPC_BRNTAKEN 0x0400 |
| 301 | |
| 302 | /* TOC slot defined in file (or, data in toc). */ |
| 303 | #define IMAGE_REL_PPC_TOCDEFN 0x0800 |
| 304 | |
| 305 | /* Masks to isolate above values in IMAGE_RELOCATION.Type. */ |
| 306 | #define IMAGE_REL_PPC_TYPEMASK 0x00FF |
| 307 | #define IMAGE_REL_PPC_FLAGMASK 0x0F00 |
| 308 | |
| 309 | #define EXTRACT_TYPE(x) ((x) & IMAGE_REL_PPC_TYPEMASK) |
| 310 | #define EXTRACT_FLAGS(x) ((x) & IMAGE_REL_PPC_FLAGMASK) |
| 311 | #define EXTRACT_JUNK(x) \ |
| 312 | ((x) & ~(IMAGE_REL_PPC_TYPEMASK | IMAGE_REL_PPC_FLAGMASK)) |
| 313 | \f |
| 314 | /* Static helper functions to make relocation work. */ |
| 315 | /* (Work In Progress) */ |
| 316 | |
| 317 | static bfd_reloc_status_type ppc_refhi_reloc PARAMS ((bfd *abfd, |
| 318 | arelent *reloc, |
| 319 | asymbol *symbol, |
| 320 | PTR data, |
| 321 | asection *section, |
| 322 | bfd *output_bfd, |
| 323 | char **error)); |
| 324 | static bfd_reloc_status_type ppc_pair_reloc PARAMS ((bfd *abfd, |
| 325 | arelent *reloc, |
| 326 | asymbol *symbol, |
| 327 | PTR data, |
| 328 | asection *section, |
| 329 | bfd *output_bfd, |
| 330 | char **error)); |
| 331 | \f |
| 332 | static bfd_reloc_status_type ppc_toc16_reloc PARAMS ((bfd *abfd, |
| 333 | arelent *reloc, |
| 334 | asymbol *symbol, |
| 335 | PTR data, |
| 336 | asection *section, |
| 337 | bfd *output_bfd, |
| 338 | char **error)); |
| 339 | |
| 340 | static bfd_reloc_status_type ppc_section_reloc PARAMS ((bfd *abfd, |
| 341 | arelent *reloc, |
| 342 | asymbol *symbol, |
| 343 | PTR data, |
| 344 | asection *section, |
| 345 | bfd *output_bfd, |
| 346 | char **error)); |
| 347 | |
| 348 | static bfd_reloc_status_type ppc_secrel_reloc PARAMS ((bfd *abfd, |
| 349 | arelent *reloc, |
| 350 | asymbol *symbol, |
| 351 | PTR data, |
| 352 | asection *section, |
| 353 | bfd *output_bfd, |
| 354 | char **error)); |
| 355 | |
| 356 | static bfd_reloc_status_type ppc_imglue_reloc PARAMS ((bfd *abfd, |
| 357 | arelent *reloc, |
| 358 | asymbol *symbol, |
| 359 | PTR data, |
| 360 | asection *section, |
| 361 | bfd *output_bfd, |
| 362 | char **error)); |
| 363 | |
| 364 | static bfd_boolean in_reloc_p PARAMS((bfd *abfd, reloc_howto_type *howto)); |
| 365 | \f |
| 366 | /* FIXME: It'll take a while to get through all of these. I only need a few to |
| 367 | get us started, so those I'll make sure work. Those marked FIXME are either |
| 368 | completely unverified or have a specific unknown marked in the comment. */ |
| 369 | |
| 370 | /* Relocation entries for Windows/NT on PowerPC. |
| 371 | |
| 372 | From the document "" we find the following listed as used relocs: |
| 373 | |
| 374 | ABSOLUTE : The noop |
| 375 | ADDR[64|32|16] : fields that hold addresses in data fields or the |
| 376 | 16 bit displacement field on a load/store. |
| 377 | ADDR[24|14] : fields that hold addresses in branch and cond |
| 378 | branches. These represent [26|16] bit addresses. |
| 379 | The low order 2 bits are preserved. |
| 380 | REL[24|14] : branches relative to the Instruction Address |
| 381 | register. These represent [26|16] bit addresses, |
| 382 | as before. The instruction field will be zero, and |
| 383 | the address of the SYM will be inserted at link time. |
| 384 | TOCREL16 : 16 bit displacement field referring to a slot in |
| 385 | toc. |
| 386 | TOCREL14 : 16 bit displacement field, similar to REL14 or ADDR14. |
| 387 | ADDR32NB : 32 bit address relative to the virtual origin. |
| 388 | (On the alpha, this is always a linker generated thunk) |
| 389 | (i.e. 32bit addr relative to the image base) |
| 390 | SECREL : The value is relative to the start of the section |
| 391 | containing the symbol. |
| 392 | SECTION : access to the header containing the item. Supports the |
| 393 | codeview debugger. |
| 394 | |
| 395 | In particular, note that the document does not indicate that the |
| 396 | relocations listed in the header file are used. */ |
| 397 | |
| 398 | |
| 399 | static reloc_howto_type ppc_coff_howto_table[] = |
| 400 | { |
| 401 | /* IMAGE_REL_PPC_ABSOLUTE 0x0000 NOP */ |
| 402 | /* Unused: */ |
| 403 | HOWTO (IMAGE_REL_PPC_ABSOLUTE, /* type */ |
| 404 | 0, /* rightshift */ |
| 405 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 406 | 0, /* bitsize */ |
| 407 | FALSE, /* pc_relative */ |
| 408 | 0, /* bitpos */ |
| 409 | complain_overflow_dont, /* dont complain_on_overflow */ |
| 410 | 0, /* special_function */ |
| 411 | "ABSOLUTE", /* name */ |
| 412 | FALSE, /* partial_inplace */ |
| 413 | 0x00, /* src_mask */ |
| 414 | 0x00, /* dst_mask */ |
| 415 | FALSE), /* pcrel_offset */ |
| 416 | |
| 417 | /* IMAGE_REL_PPC_ADDR64 0x0001 64-bit address */ |
| 418 | /* Unused: */ |
| 419 | HOWTO(IMAGE_REL_PPC_ADDR64, /* type */ |
| 420 | 0, /* rightshift */ |
| 421 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 422 | 64, /* bitsize */ |
| 423 | FALSE, /* pc_relative */ |
| 424 | 0, /* bitpos */ |
| 425 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 426 | 0, /* special_function */ |
| 427 | "ADDR64", /* name */ |
| 428 | TRUE, /* partial_inplace */ |
| 429 | MINUS_ONE, /* src_mask */ |
| 430 | MINUS_ONE, /* dst_mask */ |
| 431 | FALSE), /* pcrel_offset */ |
| 432 | |
| 433 | /* IMAGE_REL_PPC_ADDR32 0x0002 32-bit address */ |
| 434 | /* Used: */ |
| 435 | HOWTO (IMAGE_REL_PPC_ADDR32, /* type */ |
| 436 | 0, /* rightshift */ |
| 437 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 438 | 32, /* bitsize */ |
| 439 | FALSE, /* pc_relative */ |
| 440 | 0, /* bitpos */ |
| 441 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 442 | 0, /* special_function */ |
| 443 | "ADDR32", /* name */ |
| 444 | TRUE, /* partial_inplace */ |
| 445 | 0xffffffff, /* src_mask */ |
| 446 | 0xffffffff, /* dst_mask */ |
| 447 | FALSE), /* pcrel_offset */ |
| 448 | |
| 449 | /* IMAGE_REL_PPC_ADDR24 0x0003 26-bit address, shifted left 2 (branch absolute) */ |
| 450 | /* the LI field is in bit 6 through bit 29 is 24 bits, + 2 for the shift */ |
| 451 | /* Of course, That's the IBM approved bit numbering, which is not what */ |
| 452 | /* anyone else uses.... The li field is in bit 2 thru 25 */ |
| 453 | /* Used: */ |
| 454 | HOWTO (IMAGE_REL_PPC_ADDR24, /* type */ |
| 455 | 0, /* rightshift */ |
| 456 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 457 | 26, /* bitsize */ |
| 458 | FALSE, /* pc_relative */ |
| 459 | 0, /* bitpos */ |
| 460 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 461 | 0, /* special_function */ |
| 462 | "ADDR24", /* name */ |
| 463 | TRUE, /* partial_inplace */ |
| 464 | 0x07fffffc, /* src_mask */ |
| 465 | 0x07fffffc, /* dst_mask */ |
| 466 | FALSE), /* pcrel_offset */ |
| 467 | |
| 468 | /* IMAGE_REL_PPC_ADDR16 0x0004 16-bit address */ |
| 469 | /* Used: */ |
| 470 | HOWTO (IMAGE_REL_PPC_ADDR16, /* type */ |
| 471 | 0, /* rightshift */ |
| 472 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 473 | 16, /* bitsize */ |
| 474 | FALSE, /* pc_relative */ |
| 475 | 0, /* bitpos */ |
| 476 | complain_overflow_signed, /* complain_on_overflow */ |
| 477 | 0, /* special_function */ |
| 478 | "ADDR16", /* name */ |
| 479 | TRUE, /* partial_inplace */ |
| 480 | 0xffff, /* src_mask */ |
| 481 | 0xffff, /* dst_mask */ |
| 482 | FALSE), /* pcrel_offset */ |
| 483 | |
| 484 | /* IMAGE_REL_PPC_ADDR14 0x0005 */ |
| 485 | /* 16-bit address, shifted left 2 (load doubleword) */ |
| 486 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ |
| 487 | /* Unused: */ |
| 488 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ |
| 489 | 1, /* rightshift */ |
| 490 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 491 | 16, /* bitsize */ |
| 492 | FALSE, /* pc_relative */ |
| 493 | 0, /* bitpos */ |
| 494 | complain_overflow_signed, /* complain_on_overflow */ |
| 495 | 0, /* special_function */ |
| 496 | "ADDR16", /* name */ |
| 497 | TRUE, /* partial_inplace */ |
| 498 | 0xffff, /* src_mask */ |
| 499 | 0xffff, /* dst_mask */ |
| 500 | FALSE), /* pcrel_offset */ |
| 501 | |
| 502 | /* IMAGE_REL_PPC_REL24 0x0006 */ |
| 503 | /* 26-bit PC-relative offset, shifted left 2 (branch relative) */ |
| 504 | /* Used: */ |
| 505 | HOWTO (IMAGE_REL_PPC_REL24, /* type */ |
| 506 | 0, /* rightshift */ |
| 507 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 508 | 26, /* bitsize */ |
| 509 | TRUE, /* pc_relative */ |
| 510 | 0, /* bitpos */ |
| 511 | complain_overflow_signed, /* complain_on_overflow */ |
| 512 | 0, /* special_function */ |
| 513 | "REL24", /* name */ |
| 514 | TRUE, /* partial_inplace */ |
| 515 | 0x3fffffc, /* src_mask */ |
| 516 | 0x3fffffc, /* dst_mask */ |
| 517 | FALSE), /* pcrel_offset */ |
| 518 | |
| 519 | /* IMAGE_REL_PPC_REL14 0x0007 */ |
| 520 | /* 16-bit PC-relative offset, shifted left 2 (br cond relative) */ |
| 521 | /* FIXME: the mask is likely wrong, and the bit position may be as well */ |
| 522 | /* FIXME: how does it know how far to shift? */ |
| 523 | /* Unused: */ |
| 524 | HOWTO (IMAGE_REL_PPC_ADDR14, /* type */ |
| 525 | 1, /* rightshift */ |
| 526 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 527 | 16, /* bitsize */ |
| 528 | FALSE, /* pc_relative */ |
| 529 | 0, /* bitpos */ |
| 530 | complain_overflow_signed, /* complain_on_overflow */ |
| 531 | 0, /* special_function */ |
| 532 | "ADDR16", /* name */ |
| 533 | TRUE, /* partial_inplace */ |
| 534 | 0xffff, /* src_mask */ |
| 535 | 0xffff, /* dst_mask */ |
| 536 | TRUE), /* pcrel_offset */ |
| 537 | |
| 538 | /* IMAGE_REL_PPC_TOCREL16 0x0008 */ |
| 539 | /* 16-bit offset from TOC base */ |
| 540 | /* Used: */ |
| 541 | HOWTO (IMAGE_REL_PPC_TOCREL16,/* type */ |
| 542 | 0, /* rightshift */ |
| 543 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 544 | 16, /* bitsize */ |
| 545 | FALSE, /* pc_relative */ |
| 546 | 0, /* bitpos */ |
| 547 | complain_overflow_dont, /* complain_on_overflow */ |
| 548 | ppc_toc16_reloc, /* special_function */ |
| 549 | "TOCREL16", /* name */ |
| 550 | FALSE, /* partial_inplace */ |
| 551 | 0xffff, /* src_mask */ |
| 552 | 0xffff, /* dst_mask */ |
| 553 | FALSE), /* pcrel_offset */ |
| 554 | |
| 555 | /* IMAGE_REL_PPC_TOCREL14 0x0009 */ |
| 556 | /* 16-bit offset from TOC base, shifted left 2 (load doubleword) */ |
| 557 | /* Unused: */ |
| 558 | HOWTO (IMAGE_REL_PPC_TOCREL14,/* type */ |
| 559 | 1, /* rightshift */ |
| 560 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 561 | 16, /* bitsize */ |
| 562 | FALSE, /* pc_relative */ |
| 563 | 0, /* bitpos */ |
| 564 | complain_overflow_signed, /* complain_on_overflow */ |
| 565 | 0, /* special_function */ |
| 566 | "TOCREL14", /* name */ |
| 567 | FALSE, /* partial_inplace */ |
| 568 | 0xffff, /* src_mask */ |
| 569 | 0xffff, /* dst_mask */ |
| 570 | FALSE), /* pcrel_offset */ |
| 571 | |
| 572 | /* IMAGE_REL_PPC_ADDR32NB 0x000A */ |
| 573 | /* 32-bit addr w/ image base */ |
| 574 | /* Unused: */ |
| 575 | HOWTO (IMAGE_REL_PPC_ADDR32NB,/* type */ |
| 576 | 0, /* rightshift */ |
| 577 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 578 | 32, /* bitsize */ |
| 579 | FALSE, /* pc_relative */ |
| 580 | 0, /* bitpos */ |
| 581 | complain_overflow_signed, /* complain_on_overflow */ |
| 582 | 0, /* special_function */ |
| 583 | "ADDR32NB", /* name */ |
| 584 | TRUE, /* partial_inplace */ |
| 585 | 0xffffffff, /* src_mask */ |
| 586 | 0xffffffff, /* dst_mask */ |
| 587 | FALSE), /* pcrel_offset */ |
| 588 | |
| 589 | /* IMAGE_REL_PPC_SECREL 0x000B */ |
| 590 | /* va of containing section (as in an image sectionhdr) */ |
| 591 | /* Unused: */ |
| 592 | HOWTO (IMAGE_REL_PPC_SECREL,/* type */ |
| 593 | 0, /* rightshift */ |
| 594 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 595 | 32, /* bitsize */ |
| 596 | FALSE, /* pc_relative */ |
| 597 | 0, /* bitpos */ |
| 598 | complain_overflow_signed, /* complain_on_overflow */ |
| 599 | ppc_secrel_reloc, /* special_function */ |
| 600 | "SECREL", /* name */ |
| 601 | TRUE, /* partial_inplace */ |
| 602 | 0xffffffff, /* src_mask */ |
| 603 | 0xffffffff, /* dst_mask */ |
| 604 | TRUE), /* pcrel_offset */ |
| 605 | |
| 606 | /* IMAGE_REL_PPC_SECTION 0x000C */ |
| 607 | /* sectionheader number */ |
| 608 | /* Unused: */ |
| 609 | HOWTO (IMAGE_REL_PPC_SECTION,/* type */ |
| 610 | 0, /* rightshift */ |
| 611 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 612 | 32, /* bitsize */ |
| 613 | FALSE, /* pc_relative */ |
| 614 | 0, /* bitpos */ |
| 615 | complain_overflow_signed, /* complain_on_overflow */ |
| 616 | ppc_section_reloc, /* special_function */ |
| 617 | "SECTION", /* name */ |
| 618 | TRUE, /* partial_inplace */ |
| 619 | 0xffffffff, /* src_mask */ |
| 620 | 0xffffffff, /* dst_mask */ |
| 621 | TRUE), /* pcrel_offset */ |
| 622 | |
| 623 | /* IMAGE_REL_PPC_IFGLUE 0x000D */ |
| 624 | /* substitute TOC restore instruction iff symbol is glue code */ |
| 625 | /* Used: */ |
| 626 | HOWTO (IMAGE_REL_PPC_IFGLUE,/* type */ |
| 627 | 0, /* rightshift */ |
| 628 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 629 | 32, /* bitsize */ |
| 630 | FALSE, /* pc_relative */ |
| 631 | 0, /* bitpos */ |
| 632 | complain_overflow_signed, /* complain_on_overflow */ |
| 633 | 0, /* special_function */ |
| 634 | "IFGLUE", /* name */ |
| 635 | TRUE, /* partial_inplace */ |
| 636 | 0xffffffff, /* src_mask */ |
| 637 | 0xffffffff, /* dst_mask */ |
| 638 | FALSE), /* pcrel_offset */ |
| 639 | |
| 640 | /* IMAGE_REL_PPC_IMGLUE 0x000E */ |
| 641 | /* symbol is glue code; virtual address is TOC restore instruction */ |
| 642 | /* Unused: */ |
| 643 | HOWTO (IMAGE_REL_PPC_IMGLUE,/* type */ |
| 644 | 0, /* rightshift */ |
| 645 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 646 | 32, /* bitsize */ |
| 647 | FALSE, /* pc_relative */ |
| 648 | 0, /* bitpos */ |
| 649 | complain_overflow_dont, /* complain_on_overflow */ |
| 650 | ppc_imglue_reloc, /* special_function */ |
| 651 | "IMGLUE", /* name */ |
| 652 | FALSE, /* partial_inplace */ |
| 653 | 0xffffffff, /* src_mask */ |
| 654 | 0xffffffff, /* dst_mask */ |
| 655 | FALSE), /* pcrel_offset */ |
| 656 | |
| 657 | /* IMAGE_REL_PPC_SECREL16 0x000F */ |
| 658 | /* va of containing section (limited to 16 bits) */ |
| 659 | /* Unused: */ |
| 660 | HOWTO (IMAGE_REL_PPC_SECREL16,/* type */ |
| 661 | 0, /* rightshift */ |
| 662 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 663 | 16, /* bitsize */ |
| 664 | FALSE, /* pc_relative */ |
| 665 | 0, /* bitpos */ |
| 666 | complain_overflow_signed, /* complain_on_overflow */ |
| 667 | 0, /* special_function */ |
| 668 | "SECREL16", /* name */ |
| 669 | TRUE, /* partial_inplace */ |
| 670 | 0xffff, /* src_mask */ |
| 671 | 0xffff, /* dst_mask */ |
| 672 | TRUE), /* pcrel_offset */ |
| 673 | |
| 674 | /* IMAGE_REL_PPC_REFHI 0x0010 */ |
| 675 | /* Unused: */ |
| 676 | HOWTO (IMAGE_REL_PPC_REFHI, /* type */ |
| 677 | 0, /* rightshift */ |
| 678 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 679 | 16, /* bitsize */ |
| 680 | FALSE, /* pc_relative */ |
| 681 | 0, /* bitpos */ |
| 682 | complain_overflow_signed, /* complain_on_overflow */ |
| 683 | ppc_refhi_reloc, /* special_function */ |
| 684 | "REFHI", /* name */ |
| 685 | TRUE, /* partial_inplace */ |
| 686 | 0xffffffff, /* src_mask */ |
| 687 | 0xffffffff, /* dst_mask */ |
| 688 | FALSE), /* pcrel_offset */ |
| 689 | |
| 690 | /* IMAGE_REL_PPC_REFLO 0x0011 */ |
| 691 | /* Unused: */ |
| 692 | HOWTO (IMAGE_REL_PPC_REFLO, /* type */ |
| 693 | 0, /* rightshift */ |
| 694 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 695 | 16, /* bitsize */ |
| 696 | FALSE, /* pc_relative */ |
| 697 | 0, /* bitpos */ |
| 698 | complain_overflow_signed, /* complain_on_overflow */ |
| 699 | ppc_refhi_reloc, /* special_function */ |
| 700 | "REFLO", /* name */ |
| 701 | TRUE, /* partial_inplace */ |
| 702 | 0xffffffff, /* src_mask */ |
| 703 | 0xffffffff, /* dst_mask */ |
| 704 | FALSE), /* pcrel_offset */ |
| 705 | |
| 706 | /* IMAGE_REL_PPC_PAIR 0x0012 */ |
| 707 | /* Unused: */ |
| 708 | HOWTO (IMAGE_REL_PPC_PAIR, /* type */ |
| 709 | 0, /* rightshift */ |
| 710 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 711 | 16, /* bitsize */ |
| 712 | FALSE, /* pc_relative */ |
| 713 | 0, /* bitpos */ |
| 714 | complain_overflow_signed, /* complain_on_overflow */ |
| 715 | ppc_pair_reloc, /* special_function */ |
| 716 | "PAIR", /* name */ |
| 717 | TRUE, /* partial_inplace */ |
| 718 | 0xffffffff, /* src_mask */ |
| 719 | 0xffffffff, /* dst_mask */ |
| 720 | FALSE), /* pcrel_offset */ |
| 721 | |
| 722 | /* IMAGE_REL_PPC_TOCREL16_DEFN 0x0013 */ |
| 723 | /* 16-bit offset from TOC base, without causing a definition */ |
| 724 | /* Used: */ |
| 725 | HOWTO ( (IMAGE_REL_PPC_TOCREL16 | IMAGE_REL_PPC_TOCDEFN), /* type */ |
| 726 | 0, /* rightshift */ |
| 727 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 728 | 16, /* bitsize */ |
| 729 | FALSE, /* pc_relative */ |
| 730 | 0, /* bitpos */ |
| 731 | complain_overflow_dont, /* complain_on_overflow */ |
| 732 | 0, /* special_function */ |
| 733 | "TOCREL16, TOCDEFN", /* name */ |
| 734 | FALSE, /* partial_inplace */ |
| 735 | 0xffff, /* src_mask */ |
| 736 | 0xffff, /* dst_mask */ |
| 737 | FALSE), /* pcrel_offset */ |
| 738 | |
| 739 | }; |
| 740 | \f |
| 741 | /* Some really cheezy macros that can be turned on to test stderr :-) */ |
| 742 | |
| 743 | #ifdef DEBUG_RELOC |
| 744 | #define UN_IMPL(x) \ |
| 745 | { \ |
| 746 | static int i; \ |
| 747 | if (i == 0) \ |
| 748 | { \ |
| 749 | i = 1; \ |
| 750 | fprintf (stderr,_("Unimplemented Relocation -- %s\n"),x); \ |
| 751 | } \ |
| 752 | } |
| 753 | |
| 754 | #define DUMP_RELOC(n,r) \ |
| 755 | { \ |
| 756 | fprintf (stderr,"%s sym %d, addr %d, addend %d\n", \ |
| 757 | n, (*(r->sym_ptr_ptr))->name, \ |
| 758 | r->address, r->addend); \ |
| 759 | } |
| 760 | |
| 761 | /* Given a reloc name, n, and a pointer to an internal_reloc, |
| 762 | dump out interesting information on the contents |
| 763 | |
| 764 | #define n_name _n._n_name |
| 765 | #define n_zeroes _n._n_n._n_zeroes |
| 766 | #define n_offset _n._n_n._n_offset */ |
| 767 | |
| 768 | #define DUMP_RELOC2(n,r) \ |
| 769 | { \ |
| 770 | fprintf (stderr,"%s sym %d, r_vaddr %d %s\n", \ |
| 771 | n, r->r_symndx, r->r_vaddr, \ |
| 772 | (((r->r_type) & IMAGE_REL_PPC_TOCDEFN) == 0) \ |
| 773 | ?" ":" TOCDEFN" ); \ |
| 774 | } |
| 775 | |
| 776 | #else |
| 777 | #define UN_IMPL(x) |
| 778 | #define DUMP_RELOC(n,r) |
| 779 | #define DUMP_RELOC2(n,r) |
| 780 | #endif |
| 781 | \f |
| 782 | /* TOC construction and management routines. */ |
| 783 | |
| 784 | /* This file is compiled twice, and these variables are defined in one |
| 785 | of the compilations. FIXME: This is confusing and weird. Also, |
| 786 | BFD should not use global variables. */ |
| 787 | extern bfd * bfd_of_toc_owner; |
| 788 | extern long int global_toc_size; |
| 789 | extern long int import_table_size; |
| 790 | extern long int first_thunk_address; |
| 791 | extern long int thunk_size; |
| 792 | |
| 793 | enum toc_type |
| 794 | { |
| 795 | default_toc, |
| 796 | toc_32, |
| 797 | toc_64 |
| 798 | }; |
| 799 | |
| 800 | enum ref_category |
| 801 | { |
| 802 | priv, |
| 803 | pub, |
| 804 | tocdata |
| 805 | }; |
| 806 | |
| 807 | struct list_ele |
| 808 | { |
| 809 | struct list_ele *next; |
| 810 | bfd_vma addr; |
| 811 | enum ref_category cat; |
| 812 | int offset; |
| 813 | const char *name; |
| 814 | }; |
| 815 | |
| 816 | extern struct list_ele *head; |
| 817 | extern struct list_ele *tail; |
| 818 | |
| 819 | static void record_toc |
| 820 | PARAMS ((asection *, bfd_signed_vma, enum ref_category, const char *)); |
| 821 | |
| 822 | static void |
| 823 | record_toc (toc_section, our_toc_offset, cat, name) |
| 824 | asection *toc_section; |
| 825 | bfd_signed_vma our_toc_offset; |
| 826 | enum ref_category cat; |
| 827 | const char *name; |
| 828 | { |
| 829 | /* Add this entry to our toc addr-offset-name list. */ |
| 830 | bfd_size_type amt = sizeof (struct list_ele); |
| 831 | struct list_ele *t = (struct list_ele *) bfd_malloc (amt); |
| 832 | |
| 833 | if (t == NULL) |
| 834 | abort (); |
| 835 | t->next = 0; |
| 836 | t->offset = our_toc_offset; |
| 837 | t->name = name; |
| 838 | t->cat = cat; |
| 839 | t->addr = toc_section->output_offset + our_toc_offset; |
| 840 | |
| 841 | if (head == 0) |
| 842 | { |
| 843 | head = t; |
| 844 | tail = t; |
| 845 | } |
| 846 | else |
| 847 | { |
| 848 | tail->next = t; |
| 849 | tail = t; |
| 850 | } |
| 851 | } |
| 852 | |
| 853 | #ifdef COFF_IMAGE_WITH_PE |
| 854 | |
| 855 | static bfd_boolean ppc_record_toc_entry |
| 856 | PARAMS ((bfd *, struct bfd_link_info *, asection *, int, enum toc_type)); |
| 857 | static void ppc_mark_symbol_as_glue |
| 858 | PARAMS ((bfd *, int, struct internal_reloc *)); |
| 859 | |
| 860 | /* Record a toc offset against a symbol. */ |
| 861 | static bfd_boolean |
| 862 | ppc_record_toc_entry(abfd, info, sec, sym, toc_kind) |
| 863 | bfd *abfd; |
| 864 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 865 | asection *sec ATTRIBUTE_UNUSED; |
| 866 | int sym; |
| 867 | enum toc_type toc_kind ATTRIBUTE_UNUSED; |
| 868 | { |
| 869 | struct ppc_coff_link_hash_entry *h; |
| 870 | const char *name; |
| 871 | |
| 872 | int *local_syms; |
| 873 | |
| 874 | h = 0; |
| 875 | |
| 876 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); |
| 877 | if (h != 0) |
| 878 | { |
| 879 | HASH_CHECK(h); |
| 880 | } |
| 881 | |
| 882 | if (h == 0) |
| 883 | { |
| 884 | local_syms = obj_coff_local_toc_table(abfd); |
| 885 | |
| 886 | if (local_syms == 0) |
| 887 | { |
| 888 | unsigned int i; |
| 889 | bfd_size_type amt; |
| 890 | |
| 891 | /* allocate a table */ |
| 892 | amt = (bfd_size_type) obj_raw_syment_count (abfd) * sizeof (int); |
| 893 | local_syms = (int *) bfd_zalloc (abfd, amt); |
| 894 | if (local_syms == 0) |
| 895 | return FALSE; |
| 896 | obj_coff_local_toc_table (abfd) = local_syms; |
| 897 | |
| 898 | for (i = 0; i < obj_raw_syment_count (abfd); ++i) |
| 899 | { |
| 900 | SET_UNALLOCATED (local_syms[i]); |
| 901 | } |
| 902 | } |
| 903 | |
| 904 | if (IS_UNALLOCATED(local_syms[sym])) |
| 905 | { |
| 906 | local_syms[sym] = global_toc_size; |
| 907 | global_toc_size += 4; |
| 908 | |
| 909 | /* The size must fit in a 16-bit displacement. */ |
| 910 | if (global_toc_size > 65535) |
| 911 | { |
| 912 | (*_bfd_error_handler) (_("TOC overflow")); |
| 913 | bfd_set_error (bfd_error_file_too_big); |
| 914 | return FALSE; |
| 915 | } |
| 916 | } |
| 917 | } |
| 918 | else |
| 919 | { |
| 920 | name = h->root.root.root.string; |
| 921 | |
| 922 | /* Check to see if there's a toc slot allocated. If not, do it |
| 923 | here. It will be used in relocate_section. */ |
| 924 | if (IS_UNALLOCATED(h->toc_offset)) |
| 925 | { |
| 926 | h->toc_offset = global_toc_size; |
| 927 | global_toc_size += 4; |
| 928 | |
| 929 | /* The size must fit in a 16-bit displacement. */ |
| 930 | if (global_toc_size >= 65535) |
| 931 | { |
| 932 | (*_bfd_error_handler) (_("TOC overflow")); |
| 933 | bfd_set_error (bfd_error_file_too_big); |
| 934 | return FALSE; |
| 935 | } |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | return TRUE; |
| 940 | } |
| 941 | |
| 942 | /* Record a toc offset against a symbol. */ |
| 943 | static void |
| 944 | ppc_mark_symbol_as_glue(abfd, sym, rel) |
| 945 | bfd *abfd; |
| 946 | int sym; |
| 947 | struct internal_reloc *rel; |
| 948 | { |
| 949 | struct ppc_coff_link_hash_entry *h; |
| 950 | |
| 951 | h = (struct ppc_coff_link_hash_entry *) (obj_coff_sym_hashes (abfd)[sym]); |
| 952 | |
| 953 | HASH_CHECK(h); |
| 954 | |
| 955 | h->symbol_is_glue = 1; |
| 956 | h->glue_insn = bfd_get_32 (abfd, (bfd_byte *) &rel->r_vaddr); |
| 957 | |
| 958 | return; |
| 959 | } |
| 960 | |
| 961 | #endif /* COFF_IMAGE_WITH_PE */ |
| 962 | \f |
| 963 | /* Return TRUE if this relocation should |
| 964 | appear in the output .reloc section. */ |
| 965 | |
| 966 | static bfd_boolean in_reloc_p(abfd, howto) |
| 967 | bfd * abfd ATTRIBUTE_UNUSED; |
| 968 | reloc_howto_type *howto; |
| 969 | { |
| 970 | return |
| 971 | (! howto->pc_relative) |
| 972 | && (howto->type != IMAGE_REL_PPC_ADDR32NB) |
| 973 | && (howto->type != IMAGE_REL_PPC_TOCREL16) |
| 974 | && (howto->type != IMAGE_REL_PPC_IMGLUE) |
| 975 | && (howto->type != IMAGE_REL_PPC_IFGLUE) |
| 976 | && (howto->type != IMAGE_REL_PPC_SECREL) |
| 977 | && (howto->type != IMAGE_REL_PPC_SECTION) |
| 978 | && (howto->type != IMAGE_REL_PPC_SECREL16) |
| 979 | && (howto->type != IMAGE_REL_PPC_REFHI) |
| 980 | && (howto->type != IMAGE_REL_PPC_REFLO) |
| 981 | && (howto->type != IMAGE_REL_PPC_PAIR) |
| 982 | && (howto->type != IMAGE_REL_PPC_TOCREL16_DEFN) ; |
| 983 | } |
| 984 | |
| 985 | /* The reloc processing routine for the optimized COFF linker. */ |
| 986 | |
| 987 | static bfd_boolean |
| 988 | coff_ppc_relocate_section (output_bfd, info, input_bfd, input_section, |
| 989 | contents, relocs, syms, sections) |
| 990 | bfd *output_bfd; |
| 991 | struct bfd_link_info *info; |
| 992 | bfd *input_bfd; |
| 993 | asection *input_section; |
| 994 | bfd_byte *contents; |
| 995 | struct internal_reloc *relocs; |
| 996 | struct internal_syment *syms; |
| 997 | asection **sections; |
| 998 | { |
| 999 | struct internal_reloc *rel; |
| 1000 | struct internal_reloc *relend; |
| 1001 | bfd_boolean hihalf; |
| 1002 | bfd_vma hihalf_val; |
| 1003 | asection *toc_section = 0; |
| 1004 | bfd_vma relocation; |
| 1005 | reloc_howto_type *howto = 0; |
| 1006 | |
| 1007 | /* If we are performing a relocatable link, we don't need to do a |
| 1008 | thing. The caller will take care of adjusting the reloc |
| 1009 | addresses and symbol indices. */ |
| 1010 | if (info->relocatable) |
| 1011 | return TRUE; |
| 1012 | |
| 1013 | hihalf = FALSE; |
| 1014 | hihalf_val = 0; |
| 1015 | |
| 1016 | rel = relocs; |
| 1017 | relend = rel + input_section->reloc_count; |
| 1018 | for (; rel < relend; rel++) |
| 1019 | { |
| 1020 | long symndx; |
| 1021 | struct ppc_coff_link_hash_entry *h; |
| 1022 | struct internal_syment *sym; |
| 1023 | bfd_vma val; |
| 1024 | |
| 1025 | asection *sec; |
| 1026 | bfd_reloc_status_type rstat; |
| 1027 | bfd_byte *loc; |
| 1028 | |
| 1029 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); |
| 1030 | unsigned short r_flags = EXTRACT_FLAGS(rel->r_type); |
| 1031 | |
| 1032 | symndx = rel->r_symndx; |
| 1033 | loc = contents + rel->r_vaddr - input_section->vma; |
| 1034 | |
| 1035 | /* FIXME: check bounds on r_type */ |
| 1036 | howto = ppc_coff_howto_table + r_type; |
| 1037 | |
| 1038 | if (symndx == -1) |
| 1039 | { |
| 1040 | h = NULL; |
| 1041 | sym = NULL; |
| 1042 | } |
| 1043 | else |
| 1044 | { |
| 1045 | h = (struct ppc_coff_link_hash_entry *) |
| 1046 | (obj_coff_sym_hashes (input_bfd)[symndx]); |
| 1047 | if (h != 0) |
| 1048 | { |
| 1049 | HASH_CHECK(h); |
| 1050 | } |
| 1051 | |
| 1052 | sym = syms + symndx; |
| 1053 | } |
| 1054 | |
| 1055 | if (r_type == IMAGE_REL_PPC_IMGLUE && h == 0) |
| 1056 | { |
| 1057 | /* An IMGLUE reloc must have a name. Something is very wrong. */ |
| 1058 | abort (); |
| 1059 | } |
| 1060 | |
| 1061 | sec = NULL; |
| 1062 | val = 0; |
| 1063 | |
| 1064 | /* FIXME: PAIR unsupported in the following code. */ |
| 1065 | if (h == NULL) |
| 1066 | { |
| 1067 | if (symndx == -1) |
| 1068 | sec = bfd_abs_section_ptr; |
| 1069 | else |
| 1070 | { |
| 1071 | sec = sections[symndx]; |
| 1072 | val = (sec->output_section->vma |
| 1073 | + sec->output_offset |
| 1074 | + sym->n_value); |
| 1075 | if (! obj_pe (output_bfd)) |
| 1076 | val -= sec->vma; |
| 1077 | } |
| 1078 | } |
| 1079 | else |
| 1080 | { |
| 1081 | HASH_CHECK(h); |
| 1082 | |
| 1083 | if (h->root.root.type == bfd_link_hash_defined |
| 1084 | || h->root.root.type == bfd_link_hash_defweak) |
| 1085 | { |
| 1086 | sec = h->root.root.u.def.section; |
| 1087 | val = (h->root.root.u.def.value |
| 1088 | + sec->output_section->vma |
| 1089 | + sec->output_offset); |
| 1090 | } |
| 1091 | else |
| 1092 | { |
| 1093 | if (! ((*info->callbacks->undefined_symbol) |
| 1094 | (info, h->root.root.root.string, input_bfd, input_section, |
| 1095 | rel->r_vaddr - input_section->vma, TRUE))) |
| 1096 | return FALSE; |
| 1097 | } |
| 1098 | } |
| 1099 | |
| 1100 | rstat = bfd_reloc_ok; |
| 1101 | |
| 1102 | /* Each case must do its own relocation, setting rstat appropriately. */ |
| 1103 | switch (r_type) |
| 1104 | { |
| 1105 | default: |
| 1106 | (*_bfd_error_handler) |
| 1107 | (_("%B: unsupported relocation type 0x%02x"), input_bfd, r_type); |
| 1108 | bfd_set_error (bfd_error_bad_value); |
| 1109 | return FALSE; |
| 1110 | case IMAGE_REL_PPC_TOCREL16: |
| 1111 | { |
| 1112 | bfd_signed_vma our_toc_offset; |
| 1113 | int fixit; |
| 1114 | |
| 1115 | DUMP_RELOC2(howto->name, rel); |
| 1116 | |
| 1117 | if (toc_section == 0) |
| 1118 | { |
| 1119 | toc_section = bfd_get_section_by_name (bfd_of_toc_owner, |
| 1120 | TOC_SECTION_NAME); |
| 1121 | |
| 1122 | if ( toc_section == NULL ) |
| 1123 | { |
| 1124 | /* There is no toc section. Something is very wrong. */ |
| 1125 | abort (); |
| 1126 | } |
| 1127 | } |
| 1128 | |
| 1129 | /* Amazing bit tricks present. As we may have seen earlier, we |
| 1130 | use the 1 bit to tell us whether or not a toc offset has been |
| 1131 | allocated. Now that they've all been allocated, we will use |
| 1132 | the 1 bit to tell us if we've written this particular toc |
| 1133 | entry out. */ |
| 1134 | fixit = FALSE; |
| 1135 | if (h == 0) |
| 1136 | { |
| 1137 | /* It is a file local symbol. */ |
| 1138 | int *local_toc_table; |
| 1139 | const char *name; |
| 1140 | |
| 1141 | sym = syms + symndx; |
| 1142 | name = sym->_n._n_name; |
| 1143 | |
| 1144 | local_toc_table = obj_coff_local_toc_table(input_bfd); |
| 1145 | our_toc_offset = local_toc_table[symndx]; |
| 1146 | |
| 1147 | if (IS_WRITTEN(our_toc_offset)) |
| 1148 | { |
| 1149 | /* If it has been written out, it is marked with the |
| 1150 | 1 bit. Fix up our offset, but do not write it out |
| 1151 | again. */ |
| 1152 | MAKE_ADDR_AGAIN(our_toc_offset); |
| 1153 | } |
| 1154 | else |
| 1155 | { |
| 1156 | /* Write out the toc entry. */ |
| 1157 | record_toc (toc_section, our_toc_offset, priv, |
| 1158 | strdup (name)); |
| 1159 | |
| 1160 | bfd_put_32 (output_bfd, val, |
| 1161 | toc_section->contents + our_toc_offset); |
| 1162 | |
| 1163 | MARK_AS_WRITTEN(local_toc_table[symndx]); |
| 1164 | fixit = TRUE; |
| 1165 | } |
| 1166 | } |
| 1167 | else |
| 1168 | { |
| 1169 | const char *name = h->root.root.root.string; |
| 1170 | our_toc_offset = h->toc_offset; |
| 1171 | |
| 1172 | if ((r_flags & IMAGE_REL_PPC_TOCDEFN) |
| 1173 | == IMAGE_REL_PPC_TOCDEFN ) |
| 1174 | { |
| 1175 | /* This is unbelievable cheese. Some knowledgable asm |
| 1176 | hacker has decided to use r2 as a base for loading |
| 1177 | a value. He/She does this by setting the tocdefn bit, |
| 1178 | and not supplying a toc definition. The behaviour is |
| 1179 | then to use the difference between the value of the |
| 1180 | symbol and the actual location of the toc as the toc |
| 1181 | index. |
| 1182 | |
| 1183 | In fact, what is usually happening is, because the |
| 1184 | Import Address Table is mapped immediately following |
| 1185 | the toc, some trippy library code trying for speed on |
| 1186 | dll linkage, takes advantage of that and considers |
| 1187 | the IAT to be part of the toc, thus saving a load. */ |
| 1188 | |
| 1189 | our_toc_offset = val - (toc_section->output_section->vma |
| 1190 | + toc_section->output_offset); |
| 1191 | |
| 1192 | /* The size must still fit in a 16-bit displacement. */ |
| 1193 | if ((bfd_vma) our_toc_offset >= 65535) |
| 1194 | { |
| 1195 | (*_bfd_error_handler) |
| 1196 | (_("%B: Relocation for %s of %lx exceeds Toc size limit"), |
| 1197 | input_bfd, name, |
| 1198 | (unsigned long) our_toc_offset); |
| 1199 | bfd_set_error (bfd_error_bad_value); |
| 1200 | return FALSE; |
| 1201 | } |
| 1202 | |
| 1203 | record_toc (toc_section, our_toc_offset, pub, |
| 1204 | strdup (name)); |
| 1205 | } |
| 1206 | else if (IS_WRITTEN (our_toc_offset)) |
| 1207 | { |
| 1208 | /* If it has been written out, it is marked with the |
| 1209 | 1 bit. Fix up our offset, but do not write it out |
| 1210 | again. */ |
| 1211 | MAKE_ADDR_AGAIN(our_toc_offset); |
| 1212 | } |
| 1213 | else |
| 1214 | { |
| 1215 | record_toc(toc_section, our_toc_offset, pub, |
| 1216 | strdup (name)); |
| 1217 | |
| 1218 | /* Write out the toc entry. */ |
| 1219 | bfd_put_32 (output_bfd, val, |
| 1220 | toc_section->contents + our_toc_offset); |
| 1221 | |
| 1222 | MARK_AS_WRITTEN(h->toc_offset); |
| 1223 | /* The tricky part is that this is the address that |
| 1224 | needs a .reloc entry for it. */ |
| 1225 | fixit = TRUE; |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | if (fixit && info->base_file) |
| 1230 | { |
| 1231 | /* So if this is non pcrelative, and is referenced |
| 1232 | to a section or a common symbol, then it needs a reloc. */ |
| 1233 | |
| 1234 | /* Relocation to a symbol in a section which |
| 1235 | isn't absolute - we output the address here |
| 1236 | to a file. */ |
| 1237 | bfd_vma addr = (toc_section->output_section->vma |
| 1238 | + toc_section->output_offset + our_toc_offset); |
| 1239 | |
| 1240 | if (coff_data (output_bfd)->pe) |
| 1241 | addr -= pe_data(output_bfd)->pe_opthdr.ImageBase; |
| 1242 | |
| 1243 | fwrite (&addr, 1,4, (FILE *) info->base_file); |
| 1244 | } |
| 1245 | |
| 1246 | /* FIXME: this test is conservative. */ |
| 1247 | if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN |
| 1248 | && (bfd_vma) our_toc_offset > toc_section->size) |
| 1249 | { |
| 1250 | (*_bfd_error_handler) |
| 1251 | (_("%B: Relocation exceeds allocated TOC (%lx)"), |
| 1252 | input_bfd, (unsigned long) toc_section->size); |
| 1253 | bfd_set_error (bfd_error_bad_value); |
| 1254 | return FALSE; |
| 1255 | } |
| 1256 | |
| 1257 | /* Now we know the relocation for this toc reference. */ |
| 1258 | relocation = our_toc_offset + TOC_LOAD_ADJUSTMENT; |
| 1259 | rstat = _bfd_relocate_contents (howto, input_bfd, relocation, loc); |
| 1260 | } |
| 1261 | break; |
| 1262 | case IMAGE_REL_PPC_IFGLUE: |
| 1263 | { |
| 1264 | /* To solve this, we need to know whether or not the symbol |
| 1265 | appearing on the call instruction is a glue function or not. |
| 1266 | A glue function must announce itself via a IMGLUE reloc, and |
| 1267 | the reloc contains the required toc restore instruction. */ |
| 1268 | bfd_vma x; |
| 1269 | const char *my_name; |
| 1270 | |
| 1271 | DUMP_RELOC2 (howto->name, rel); |
| 1272 | |
| 1273 | if (h != 0) |
| 1274 | { |
| 1275 | my_name = h->root.root.root.string; |
| 1276 | if (h->symbol_is_glue == 1) |
| 1277 | { |
| 1278 | x = bfd_get_32 (input_bfd, loc); |
| 1279 | bfd_put_32 (input_bfd, (bfd_vma) h->glue_insn, loc); |
| 1280 | } |
| 1281 | } |
| 1282 | } |
| 1283 | break; |
| 1284 | case IMAGE_REL_PPC_SECREL: |
| 1285 | /* Unimplemented: codeview debugging information. */ |
| 1286 | /* For fast access to the header of the section |
| 1287 | containing the item. */ |
| 1288 | break; |
| 1289 | case IMAGE_REL_PPC_SECTION: |
| 1290 | /* Unimplemented: codeview debugging information. */ |
| 1291 | /* Is used to indicate that the value should be relative |
| 1292 | to the beginning of the section that contains the |
| 1293 | symbol. */ |
| 1294 | break; |
| 1295 | case IMAGE_REL_PPC_ABSOLUTE: |
| 1296 | { |
| 1297 | const char *my_name; |
| 1298 | |
| 1299 | if (h == 0) |
| 1300 | my_name = (syms+symndx)->_n._n_name; |
| 1301 | else |
| 1302 | my_name = h->root.root.root.string; |
| 1303 | |
| 1304 | (*_bfd_error_handler) |
| 1305 | (_("Warning: unsupported reloc %s <file %B, section %A>\n" |
| 1306 | "sym %ld (%s), r_vaddr %ld (%lx)"), |
| 1307 | input_bfd, input_section, howto->name, |
| 1308 | rel->r_symndx, my_name, (long) rel->r_vaddr, |
| 1309 | (unsigned long) rel->r_vaddr); |
| 1310 | } |
| 1311 | break; |
| 1312 | case IMAGE_REL_PPC_IMGLUE: |
| 1313 | { |
| 1314 | /* There is nothing to do now. This reloc was noted in the first |
| 1315 | pass over the relocs, and the glue instruction extracted. */ |
| 1316 | const char *my_name; |
| 1317 | |
| 1318 | if (h->symbol_is_glue == 1) |
| 1319 | break; |
| 1320 | my_name = h->root.root.root.string; |
| 1321 | |
| 1322 | (*_bfd_error_handler) |
| 1323 | (_("%B: Out of order IMGLUE reloc for %s"), input_bfd, my_name); |
| 1324 | bfd_set_error (bfd_error_bad_value); |
| 1325 | return FALSE; |
| 1326 | } |
| 1327 | |
| 1328 | case IMAGE_REL_PPC_ADDR32NB: |
| 1329 | { |
| 1330 | const char *name = 0; |
| 1331 | |
| 1332 | DUMP_RELOC2 (howto->name, rel); |
| 1333 | |
| 1334 | if (CONST_STRNEQ (input_section->name, ".idata$2") && first_thunk_address == 0) |
| 1335 | { |
| 1336 | /* Set magic values. */ |
| 1337 | int idata5offset; |
| 1338 | struct coff_link_hash_entry *myh; |
| 1339 | |
| 1340 | myh = coff_link_hash_lookup (coff_hash_table (info), |
| 1341 | "__idata5_magic__", |
| 1342 | FALSE, FALSE, TRUE); |
| 1343 | first_thunk_address = myh->root.u.def.value + |
| 1344 | sec->output_section->vma + |
| 1345 | sec->output_offset - |
| 1346 | pe_data(output_bfd)->pe_opthdr.ImageBase; |
| 1347 | |
| 1348 | idata5offset = myh->root.u.def.value; |
| 1349 | myh = coff_link_hash_lookup (coff_hash_table (info), |
| 1350 | "__idata6_magic__", |
| 1351 | FALSE, FALSE, TRUE); |
| 1352 | |
| 1353 | thunk_size = myh->root.u.def.value - idata5offset; |
| 1354 | myh = coff_link_hash_lookup (coff_hash_table (info), |
| 1355 | "__idata4_magic__", |
| 1356 | FALSE, FALSE, TRUE); |
| 1357 | import_table_size = myh->root.u.def.value; |
| 1358 | } |
| 1359 | |
| 1360 | if (h == 0) |
| 1361 | { |
| 1362 | /* It is a file local symbol. */ |
| 1363 | sym = syms + symndx; |
| 1364 | name = sym->_n._n_name; |
| 1365 | } |
| 1366 | else |
| 1367 | { |
| 1368 | char *target = 0; |
| 1369 | |
| 1370 | name = h->root.root.root.string; |
| 1371 | if (strcmp (".idata$2", name) == 0) |
| 1372 | target = "__idata2_magic__"; |
| 1373 | else if (strcmp (".idata$4", name) == 0) |
| 1374 | target = "__idata4_magic__"; |
| 1375 | else if (strcmp (".idata$5", name) == 0) |
| 1376 | target = "__idata5_magic__"; |
| 1377 | |
| 1378 | if (target != 0) |
| 1379 | { |
| 1380 | struct coff_link_hash_entry *myh; |
| 1381 | |
| 1382 | myh = coff_link_hash_lookup (coff_hash_table (info), |
| 1383 | target, |
| 1384 | FALSE, FALSE, TRUE); |
| 1385 | if (myh == 0) |
| 1386 | { |
| 1387 | /* Missing magic cookies. Something is very wrong. */ |
| 1388 | abort (); |
| 1389 | } |
| 1390 | |
| 1391 | val = myh->root.u.def.value + |
| 1392 | sec->output_section->vma + sec->output_offset; |
| 1393 | if (first_thunk_address == 0) |
| 1394 | { |
| 1395 | int idata5offset; |
| 1396 | myh = coff_link_hash_lookup (coff_hash_table (info), |
| 1397 | "__idata5_magic__", |
| 1398 | FALSE, FALSE, TRUE); |
| 1399 | first_thunk_address = myh->root.u.def.value + |
| 1400 | sec->output_section->vma + |
| 1401 | sec->output_offset - |
| 1402 | pe_data(output_bfd)->pe_opthdr.ImageBase; |
| 1403 | |
| 1404 | idata5offset = myh->root.u.def.value; |
| 1405 | myh = coff_link_hash_lookup (coff_hash_table (info), |
| 1406 | "__idata6_magic__", |
| 1407 | FALSE, FALSE, TRUE); |
| 1408 | |
| 1409 | thunk_size = myh->root.u.def.value - idata5offset; |
| 1410 | myh = coff_link_hash_lookup (coff_hash_table (info), |
| 1411 | "__idata4_magic__", |
| 1412 | FALSE, FALSE, TRUE); |
| 1413 | import_table_size = myh->root.u.def.value; |
| 1414 | } |
| 1415 | } |
| 1416 | } |
| 1417 | |
| 1418 | rstat = _bfd_relocate_contents (howto, |
| 1419 | input_bfd, |
| 1420 | val - |
| 1421 | pe_data (output_bfd)->pe_opthdr.ImageBase, |
| 1422 | loc); |
| 1423 | } |
| 1424 | break; |
| 1425 | |
| 1426 | case IMAGE_REL_PPC_REL24: |
| 1427 | DUMP_RELOC2(howto->name, rel); |
| 1428 | val -= (input_section->output_section->vma |
| 1429 | + input_section->output_offset); |
| 1430 | |
| 1431 | rstat = _bfd_relocate_contents (howto, |
| 1432 | input_bfd, |
| 1433 | val, |
| 1434 | loc); |
| 1435 | break; |
| 1436 | case IMAGE_REL_PPC_ADDR16: |
| 1437 | case IMAGE_REL_PPC_ADDR24: |
| 1438 | case IMAGE_REL_PPC_ADDR32: |
| 1439 | DUMP_RELOC2(howto->name, rel); |
| 1440 | rstat = _bfd_relocate_contents (howto, |
| 1441 | input_bfd, |
| 1442 | val, |
| 1443 | loc); |
| 1444 | break; |
| 1445 | } |
| 1446 | |
| 1447 | if (info->base_file) |
| 1448 | { |
| 1449 | /* So if this is non pcrelative, and is referenced |
| 1450 | to a section or a common symbol, then it needs a reloc. */ |
| 1451 | if (sym && pe_data(output_bfd)->in_reloc_p (output_bfd, howto)) |
| 1452 | { |
| 1453 | /* Relocation to a symbol in a section which |
| 1454 | isn't absolute - we output the address here |
| 1455 | to a file. */ |
| 1456 | bfd_vma addr = rel->r_vaddr |
| 1457 | - input_section->vma |
| 1458 | + input_section->output_offset |
| 1459 | + input_section->output_section->vma; |
| 1460 | |
| 1461 | if (coff_data (output_bfd)->pe) |
| 1462 | addr -= pe_data (output_bfd)->pe_opthdr.ImageBase; |
| 1463 | |
| 1464 | fwrite (&addr, 1,4, (FILE *) info->base_file); |
| 1465 | } |
| 1466 | } |
| 1467 | |
| 1468 | switch (rstat) |
| 1469 | { |
| 1470 | default: |
| 1471 | abort (); |
| 1472 | case bfd_reloc_ok: |
| 1473 | break; |
| 1474 | case bfd_reloc_overflow: |
| 1475 | { |
| 1476 | const char *name; |
| 1477 | char buf[SYMNMLEN + 1]; |
| 1478 | |
| 1479 | if (symndx == -1) |
| 1480 | name = "*ABS*"; |
| 1481 | else if (h != NULL) |
| 1482 | name = NULL; |
| 1483 | else if (sym == NULL) |
| 1484 | name = "*unknown*"; |
| 1485 | else if (sym->_n._n_n._n_zeroes == 0 |
| 1486 | && sym->_n._n_n._n_offset != 0) |
| 1487 | name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; |
| 1488 | else |
| 1489 | { |
| 1490 | strncpy (buf, sym->_n._n_name, SYMNMLEN); |
| 1491 | buf[SYMNMLEN] = '\0'; |
| 1492 | name = buf; |
| 1493 | } |
| 1494 | |
| 1495 | if (! ((*info->callbacks->reloc_overflow) |
| 1496 | (info, (h ? &h->root.root : NULL), name, howto->name, |
| 1497 | (bfd_vma) 0, input_bfd, |
| 1498 | input_section, rel->r_vaddr - input_section->vma))) |
| 1499 | return FALSE; |
| 1500 | } |
| 1501 | } |
| 1502 | } |
| 1503 | |
| 1504 | return TRUE; |
| 1505 | } |
| 1506 | |
| 1507 | #ifdef COFF_IMAGE_WITH_PE |
| 1508 | |
| 1509 | /* FIXME: BFD should not use global variables. This file is compiled |
| 1510 | twice, and these variables are shared. This is confusing and |
| 1511 | weird. */ |
| 1512 | |
| 1513 | long int global_toc_size = 4; |
| 1514 | |
| 1515 | bfd* bfd_of_toc_owner = 0; |
| 1516 | |
| 1517 | long int import_table_size; |
| 1518 | long int first_thunk_address; |
| 1519 | long int thunk_size; |
| 1520 | |
| 1521 | struct list_ele *head; |
| 1522 | struct list_ele *tail; |
| 1523 | |
| 1524 | static char * |
| 1525 | h1 = N_("\n\t\t\tTOC MAPPING\n\n"); |
| 1526 | static char * |
| 1527 | h2 = N_(" TOC disassembly Comments Name\n"); |
| 1528 | static char * |
| 1529 | h3 = N_(" Offset spelling (if present)\n"); |
| 1530 | |
| 1531 | void |
| 1532 | dump_toc (vfile) |
| 1533 | PTR vfile; |
| 1534 | { |
| 1535 | FILE *file = (FILE *) vfile; |
| 1536 | struct list_ele *t; |
| 1537 | |
| 1538 | fprintf (file, _(h1)); |
| 1539 | fprintf (file, _(h2)); |
| 1540 | fprintf (file, _(h3)); |
| 1541 | |
| 1542 | for (t = head; t != 0; t=t->next) |
| 1543 | { |
| 1544 | const char *cat = ""; |
| 1545 | |
| 1546 | if (t->cat == priv) |
| 1547 | cat = _("private "); |
| 1548 | else if (t->cat == pub) |
| 1549 | cat = _("public "); |
| 1550 | else if (t->cat == tocdata) |
| 1551 | cat = _("data-in-toc "); |
| 1552 | |
| 1553 | if (t->offset > global_toc_size) |
| 1554 | { |
| 1555 | if (t->offset <= global_toc_size + thunk_size) |
| 1556 | cat = _("IAT reference "); |
| 1557 | else |
| 1558 | { |
| 1559 | fprintf (file, |
| 1560 | _("**** global_toc_size %ld(%lx), thunk_size %ld(%lx)\n"), |
| 1561 | global_toc_size, global_toc_size, |
| 1562 | thunk_size, thunk_size); |
| 1563 | cat = _("Out of bounds!"); |
| 1564 | } |
| 1565 | } |
| 1566 | |
| 1567 | fprintf (file, |
| 1568 | " %04lx (%d)", (unsigned long) t->offset, t->offset - 32768); |
| 1569 | fprintf (file, |
| 1570 | " %s %s\n", |
| 1571 | cat, t->name); |
| 1572 | |
| 1573 | } |
| 1574 | |
| 1575 | fprintf (file, "\n"); |
| 1576 | } |
| 1577 | |
| 1578 | bfd_boolean |
| 1579 | ppc_allocate_toc_section (info) |
| 1580 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
| 1581 | { |
| 1582 | asection *s; |
| 1583 | bfd_byte *foo; |
| 1584 | bfd_size_type amt; |
| 1585 | static char test_char = '1'; |
| 1586 | |
| 1587 | if ( global_toc_size == 0 ) /* FIXME: does this get me in trouble? */ |
| 1588 | return TRUE; |
| 1589 | |
| 1590 | if (bfd_of_toc_owner == 0) |
| 1591 | /* No toc owner? Something is very wrong. */ |
| 1592 | abort (); |
| 1593 | |
| 1594 | s = bfd_get_section_by_name ( bfd_of_toc_owner , TOC_SECTION_NAME); |
| 1595 | if (s == NULL) |
| 1596 | /* No toc section? Something is very wrong. */ |
| 1597 | abort (); |
| 1598 | |
| 1599 | amt = global_toc_size; |
| 1600 | foo = (bfd_byte *) bfd_alloc (bfd_of_toc_owner, amt); |
| 1601 | memset(foo, test_char, (size_t) global_toc_size); |
| 1602 | |
| 1603 | s->size = global_toc_size; |
| 1604 | s->contents = foo; |
| 1605 | |
| 1606 | return TRUE; |
| 1607 | } |
| 1608 | |
| 1609 | bfd_boolean |
| 1610 | ppc_process_before_allocation (abfd, info) |
| 1611 | bfd *abfd; |
| 1612 | struct bfd_link_info *info; |
| 1613 | { |
| 1614 | asection *sec; |
| 1615 | struct internal_reloc *i, *rel; |
| 1616 | |
| 1617 | /* Here we have a bfd that is to be included on the link. We have a hook |
| 1618 | to do reloc rummaging, before section sizes are nailed down. */ |
| 1619 | _bfd_coff_get_external_symbols (abfd); |
| 1620 | |
| 1621 | /* Rummage around all the relocs and map the toc. */ |
| 1622 | sec = abfd->sections; |
| 1623 | |
| 1624 | if (sec == 0) |
| 1625 | return TRUE; |
| 1626 | |
| 1627 | for (; sec != 0; sec = sec->next) |
| 1628 | { |
| 1629 | if (sec->reloc_count == 0) |
| 1630 | continue; |
| 1631 | |
| 1632 | /* load the relocs */ |
| 1633 | /* FIXME: there may be a storage leak here */ |
| 1634 | i=_bfd_coff_read_internal_relocs(abfd,sec,1,0,0,0); |
| 1635 | |
| 1636 | if (i == 0) |
| 1637 | abort (); |
| 1638 | |
| 1639 | for (rel = i; rel < i + sec->reloc_count; ++rel) |
| 1640 | { |
| 1641 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); |
| 1642 | unsigned short r_flags = EXTRACT_FLAGS (rel->r_type); |
| 1643 | bfd_boolean ok = TRUE; |
| 1644 | |
| 1645 | DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, rel); |
| 1646 | |
| 1647 | switch(r_type) |
| 1648 | { |
| 1649 | case IMAGE_REL_PPC_TOCREL16: |
| 1650 | /* If TOCDEFN is on, ignore as someone else has allocated the |
| 1651 | toc entry. */ |
| 1652 | if ((r_flags & IMAGE_REL_PPC_TOCDEFN) != IMAGE_REL_PPC_TOCDEFN) |
| 1653 | ok = ppc_record_toc_entry(abfd, info, sec, |
| 1654 | rel->r_symndx, default_toc); |
| 1655 | if (!ok) |
| 1656 | return FALSE; |
| 1657 | break; |
| 1658 | case IMAGE_REL_PPC_IMGLUE: |
| 1659 | ppc_mark_symbol_as_glue (abfd, rel->r_symndx, rel); |
| 1660 | break; |
| 1661 | default: |
| 1662 | break; |
| 1663 | } |
| 1664 | } |
| 1665 | } |
| 1666 | |
| 1667 | return TRUE; |
| 1668 | } |
| 1669 | |
| 1670 | #endif |
| 1671 | |
| 1672 | static bfd_reloc_status_type |
| 1673 | ppc_refhi_reloc (abfd, reloc_entry, symbol, data, |
| 1674 | input_section, output_bfd, error_message) |
| 1675 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1676 | arelent *reloc_entry ATTRIBUTE_UNUSED; |
| 1677 | asymbol *symbol ATTRIBUTE_UNUSED; |
| 1678 | PTR data ATTRIBUTE_UNUSED; |
| 1679 | asection *input_section ATTRIBUTE_UNUSED; |
| 1680 | bfd *output_bfd; |
| 1681 | char **error_message ATTRIBUTE_UNUSED; |
| 1682 | { |
| 1683 | UN_IMPL("REFHI"); |
| 1684 | DUMP_RELOC("REFHI",reloc_entry); |
| 1685 | |
| 1686 | if (output_bfd == (bfd *) NULL) |
| 1687 | return bfd_reloc_continue; |
| 1688 | |
| 1689 | return bfd_reloc_undefined; |
| 1690 | } |
| 1691 | |
| 1692 | static bfd_reloc_status_type |
| 1693 | ppc_pair_reloc (abfd, reloc_entry, symbol, data, |
| 1694 | input_section, output_bfd, error_message) |
| 1695 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1696 | arelent *reloc_entry ATTRIBUTE_UNUSED; |
| 1697 | asymbol *symbol ATTRIBUTE_UNUSED; |
| 1698 | PTR data ATTRIBUTE_UNUSED; |
| 1699 | asection *input_section ATTRIBUTE_UNUSED; |
| 1700 | bfd *output_bfd; |
| 1701 | char **error_message ATTRIBUTE_UNUSED; |
| 1702 | { |
| 1703 | UN_IMPL("PAIR"); |
| 1704 | DUMP_RELOC("PAIR",reloc_entry); |
| 1705 | |
| 1706 | if (output_bfd == (bfd *) NULL) |
| 1707 | return bfd_reloc_continue; |
| 1708 | |
| 1709 | return bfd_reloc_undefined; |
| 1710 | } |
| 1711 | \f |
| 1712 | static bfd_reloc_status_type |
| 1713 | ppc_toc16_reloc (abfd, reloc_entry, symbol, data, |
| 1714 | input_section, output_bfd, error_message) |
| 1715 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1716 | arelent *reloc_entry ATTRIBUTE_UNUSED; |
| 1717 | asymbol *symbol ATTRIBUTE_UNUSED; |
| 1718 | PTR data ATTRIBUTE_UNUSED; |
| 1719 | asection *input_section ATTRIBUTE_UNUSED; |
| 1720 | bfd *output_bfd; |
| 1721 | char **error_message ATTRIBUTE_UNUSED; |
| 1722 | { |
| 1723 | UN_IMPL ("TOCREL16"); |
| 1724 | DUMP_RELOC ("TOCREL16",reloc_entry); |
| 1725 | |
| 1726 | if (output_bfd == (bfd *) NULL) |
| 1727 | return bfd_reloc_continue; |
| 1728 | |
| 1729 | return bfd_reloc_ok; |
| 1730 | } |
| 1731 | |
| 1732 | static bfd_reloc_status_type |
| 1733 | ppc_secrel_reloc (abfd, reloc_entry, symbol, data, |
| 1734 | input_section, output_bfd, error_message) |
| 1735 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1736 | arelent *reloc_entry ATTRIBUTE_UNUSED; |
| 1737 | asymbol *symbol ATTRIBUTE_UNUSED; |
| 1738 | PTR data ATTRIBUTE_UNUSED; |
| 1739 | asection *input_section ATTRIBUTE_UNUSED; |
| 1740 | bfd *output_bfd; |
| 1741 | char **error_message ATTRIBUTE_UNUSED; |
| 1742 | { |
| 1743 | UN_IMPL("SECREL"); |
| 1744 | DUMP_RELOC("SECREL",reloc_entry); |
| 1745 | |
| 1746 | if (output_bfd == (bfd *) NULL) |
| 1747 | return bfd_reloc_continue; |
| 1748 | |
| 1749 | return bfd_reloc_ok; |
| 1750 | } |
| 1751 | |
| 1752 | static bfd_reloc_status_type |
| 1753 | ppc_section_reloc (abfd, reloc_entry, symbol, data, |
| 1754 | input_section, output_bfd, error_message) |
| 1755 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1756 | arelent *reloc_entry ATTRIBUTE_UNUSED; |
| 1757 | asymbol *symbol ATTRIBUTE_UNUSED; |
| 1758 | PTR data ATTRIBUTE_UNUSED; |
| 1759 | asection *input_section ATTRIBUTE_UNUSED; |
| 1760 | bfd *output_bfd; |
| 1761 | char **error_message ATTRIBUTE_UNUSED; |
| 1762 | { |
| 1763 | UN_IMPL("SECTION"); |
| 1764 | DUMP_RELOC("SECTION",reloc_entry); |
| 1765 | |
| 1766 | if (output_bfd == (bfd *) NULL) |
| 1767 | return bfd_reloc_continue; |
| 1768 | |
| 1769 | return bfd_reloc_ok; |
| 1770 | } |
| 1771 | |
| 1772 | static bfd_reloc_status_type |
| 1773 | ppc_imglue_reloc (abfd, reloc_entry, symbol, data, |
| 1774 | input_section, output_bfd, error_message) |
| 1775 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1776 | arelent *reloc_entry ATTRIBUTE_UNUSED; |
| 1777 | asymbol *symbol ATTRIBUTE_UNUSED; |
| 1778 | PTR data ATTRIBUTE_UNUSED; |
| 1779 | asection *input_section ATTRIBUTE_UNUSED; |
| 1780 | bfd *output_bfd; |
| 1781 | char **error_message ATTRIBUTE_UNUSED; |
| 1782 | { |
| 1783 | UN_IMPL("IMGLUE"); |
| 1784 | DUMP_RELOC("IMGLUE",reloc_entry); |
| 1785 | |
| 1786 | if (output_bfd == (bfd *) NULL) |
| 1787 | return bfd_reloc_continue; |
| 1788 | |
| 1789 | return bfd_reloc_ok; |
| 1790 | } |
| 1791 | \f |
| 1792 | #define MAX_RELOC_INDEX \ |
| 1793 | (sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]) - 1) |
| 1794 | |
| 1795 | /* FIXME: There is a possibility that when we read in a reloc from a file, |
| 1796 | that there are some bits encoded in the upper portion of the |
| 1797 | type field. Not yet implemented. */ |
| 1798 | static void ppc_coff_rtype2howto PARAMS ((arelent *, struct internal_reloc *)); |
| 1799 | |
| 1800 | static void |
| 1801 | ppc_coff_rtype2howto (relent, internal) |
| 1802 | arelent *relent; |
| 1803 | struct internal_reloc *internal; |
| 1804 | { |
| 1805 | /* We can encode one of three things in the type field, aside from the |
| 1806 | type: |
| 1807 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction |
| 1808 | value, rather than an addition value |
| 1809 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that |
| 1810 | the branch is expected to be taken or not. |
| 1811 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file |
| 1812 | For now, we just strip this stuff to find the type, and ignore it other |
| 1813 | than that. */ |
| 1814 | reloc_howto_type *howto; |
| 1815 | unsigned short r_type = EXTRACT_TYPE (internal->r_type); |
| 1816 | unsigned short r_flags = EXTRACT_FLAGS(internal->r_type); |
| 1817 | unsigned short junk = EXTRACT_JUNK (internal->r_type); |
| 1818 | |
| 1819 | /* The masking process only slices off the bottom byte for r_type. */ |
| 1820 | if ( r_type > MAX_RELOC_INDEX ) |
| 1821 | abort (); |
| 1822 | |
| 1823 | /* Check for absolute crap. */ |
| 1824 | if (junk != 0) |
| 1825 | abort (); |
| 1826 | |
| 1827 | switch(r_type) |
| 1828 | { |
| 1829 | case IMAGE_REL_PPC_ADDR16: |
| 1830 | case IMAGE_REL_PPC_REL24: |
| 1831 | case IMAGE_REL_PPC_ADDR24: |
| 1832 | case IMAGE_REL_PPC_ADDR32: |
| 1833 | case IMAGE_REL_PPC_IFGLUE: |
| 1834 | case IMAGE_REL_PPC_ADDR32NB: |
| 1835 | case IMAGE_REL_PPC_SECTION: |
| 1836 | case IMAGE_REL_PPC_SECREL: |
| 1837 | DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal); |
| 1838 | howto = ppc_coff_howto_table + r_type; |
| 1839 | break; |
| 1840 | case IMAGE_REL_PPC_IMGLUE: |
| 1841 | DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal); |
| 1842 | howto = ppc_coff_howto_table + r_type; |
| 1843 | break; |
| 1844 | case IMAGE_REL_PPC_TOCREL16: |
| 1845 | DUMP_RELOC2 (ppc_coff_howto_table[r_type].name, internal); |
| 1846 | if (r_flags & IMAGE_REL_PPC_TOCDEFN) |
| 1847 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; |
| 1848 | else |
| 1849 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; |
| 1850 | break; |
| 1851 | default: |
| 1852 | fprintf (stderr, |
| 1853 | _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"), |
| 1854 | ppc_coff_howto_table[r_type].name, |
| 1855 | r_type); |
| 1856 | howto = ppc_coff_howto_table + r_type; |
| 1857 | break; |
| 1858 | } |
| 1859 | |
| 1860 | relent->howto = howto; |
| 1861 | } |
| 1862 | |
| 1863 | static reloc_howto_type * |
| 1864 | coff_ppc_rtype_to_howto (abfd, sec, rel, h, sym, addendp) |
| 1865 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1866 | asection *sec; |
| 1867 | struct internal_reloc *rel; |
| 1868 | struct coff_link_hash_entry *h ATTRIBUTE_UNUSED; |
| 1869 | struct internal_syment *sym ATTRIBUTE_UNUSED; |
| 1870 | bfd_vma *addendp; |
| 1871 | { |
| 1872 | reloc_howto_type *howto; |
| 1873 | |
| 1874 | /* We can encode one of three things in the type field, aside from the |
| 1875 | type: |
| 1876 | 1. IMAGE_REL_PPC_NEG - indicates the value field is a subtraction |
| 1877 | value, rather than an addition value |
| 1878 | 2. IMAGE_REL_PPC_BRTAKEN, IMAGE_REL_PPC_BRNTAKEN - indicates that |
| 1879 | the branch is expected to be taken or not. |
| 1880 | 3. IMAGE_REL_PPC_TOCDEFN - toc slot definition in the file |
| 1881 | For now, we just strip this stuff to find the type, and ignore it other |
| 1882 | than that. */ |
| 1883 | |
| 1884 | unsigned short r_type = EXTRACT_TYPE (rel->r_type); |
| 1885 | unsigned short r_flags = EXTRACT_FLAGS (rel->r_type); |
| 1886 | unsigned short junk = EXTRACT_JUNK (rel->r_type); |
| 1887 | |
| 1888 | /* The masking process only slices off the bottom byte for r_type. */ |
| 1889 | if (r_type > MAX_RELOC_INDEX) |
| 1890 | abort (); |
| 1891 | |
| 1892 | /* Check for absolute crap. */ |
| 1893 | if (junk != 0) |
| 1894 | abort (); |
| 1895 | |
| 1896 | switch(r_type) |
| 1897 | { |
| 1898 | case IMAGE_REL_PPC_ADDR32NB: |
| 1899 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); |
| 1900 | *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; |
| 1901 | howto = ppc_coff_howto_table + r_type; |
| 1902 | break; |
| 1903 | case IMAGE_REL_PPC_TOCREL16: |
| 1904 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); |
| 1905 | if (r_flags & IMAGE_REL_PPC_TOCDEFN) |
| 1906 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16_DEFN; |
| 1907 | else |
| 1908 | howto = ppc_coff_howto_table + IMAGE_REL_PPC_TOCREL16; |
| 1909 | break; |
| 1910 | case IMAGE_REL_PPC_ADDR16: |
| 1911 | case IMAGE_REL_PPC_REL24: |
| 1912 | case IMAGE_REL_PPC_ADDR24: |
| 1913 | case IMAGE_REL_PPC_ADDR32: |
| 1914 | case IMAGE_REL_PPC_IFGLUE: |
| 1915 | case IMAGE_REL_PPC_SECTION: |
| 1916 | case IMAGE_REL_PPC_SECREL: |
| 1917 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); |
| 1918 | howto = ppc_coff_howto_table + r_type; |
| 1919 | break; |
| 1920 | case IMAGE_REL_PPC_IMGLUE: |
| 1921 | DUMP_RELOC2(ppc_coff_howto_table[r_type].name, rel); |
| 1922 | howto = ppc_coff_howto_table + r_type; |
| 1923 | break; |
| 1924 | default: |
| 1925 | fprintf (stderr, |
| 1926 | _("Warning: Unsupported reloc %s [%d] used -- it may not work.\n"), |
| 1927 | ppc_coff_howto_table[r_type].name, |
| 1928 | r_type); |
| 1929 | howto = ppc_coff_howto_table + r_type; |
| 1930 | break; |
| 1931 | } |
| 1932 | |
| 1933 | return howto; |
| 1934 | } |
| 1935 | |
| 1936 | /* A cheesy little macro to make the code a little more readable. */ |
| 1937 | #define HOW2MAP(bfd_rtype,ppc_rtype) \ |
| 1938 | case bfd_rtype: return &ppc_coff_howto_table[ppc_rtype] |
| 1939 | |
| 1940 | static reloc_howto_type *ppc_coff_reloc_type_lookup |
| 1941 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| 1942 | |
| 1943 | static reloc_howto_type * |
| 1944 | ppc_coff_reloc_type_lookup (abfd, code) |
| 1945 | bfd *abfd ATTRIBUTE_UNUSED; |
| 1946 | bfd_reloc_code_real_type code; |
| 1947 | { |
| 1948 | switch (code) |
| 1949 | { |
| 1950 | HOW2MAP(BFD_RELOC_32_GOTOFF, IMAGE_REL_PPC_IMGLUE); |
| 1951 | HOW2MAP(BFD_RELOC_16_GOT_PCREL, IMAGE_REL_PPC_IFGLUE); |
| 1952 | HOW2MAP(BFD_RELOC_16, IMAGE_REL_PPC_ADDR16); |
| 1953 | HOW2MAP(BFD_RELOC_PPC_B26, IMAGE_REL_PPC_REL24); |
| 1954 | HOW2MAP(BFD_RELOC_PPC_BA26, IMAGE_REL_PPC_ADDR24); |
| 1955 | HOW2MAP(BFD_RELOC_PPC_TOC16, IMAGE_REL_PPC_TOCREL16); |
| 1956 | HOW2MAP(BFD_RELOC_16_GOTOFF, IMAGE_REL_PPC_TOCREL16_DEFN); |
| 1957 | HOW2MAP(BFD_RELOC_32, IMAGE_REL_PPC_ADDR32); |
| 1958 | HOW2MAP(BFD_RELOC_RVA, IMAGE_REL_PPC_ADDR32NB); |
| 1959 | default: |
| 1960 | return NULL; |
| 1961 | } |
| 1962 | } |
| 1963 | #undef HOW2MAP |
| 1964 | |
| 1965 | static reloc_howto_type * |
| 1966 | ppc_coff_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 1967 | const char *r_name) |
| 1968 | { |
| 1969 | unsigned int i; |
| 1970 | |
| 1971 | for (i = 0; |
| 1972 | i < sizeof (ppc_coff_howto_table) / sizeof (ppc_coff_howto_table[0]); |
| 1973 | i++) |
| 1974 | if (ppc_coff_howto_table[i].name != NULL |
| 1975 | && strcasecmp (ppc_coff_howto_table[i].name, r_name) == 0) |
| 1976 | return &ppc_coff_howto_table[i]; |
| 1977 | |
| 1978 | return NULL; |
| 1979 | } |
| 1980 | \f |
| 1981 | /* Tailor coffcode.h -- macro heaven. */ |
| 1982 | |
| 1983 | #define RTYPE2HOWTO(cache_ptr, dst) ppc_coff_rtype2howto (cache_ptr, dst) |
| 1984 | |
| 1985 | /* We use the special COFF backend linker, with our own special touch. */ |
| 1986 | |
| 1987 | #define coff_bfd_reloc_type_lookup ppc_coff_reloc_type_lookup |
| 1988 | #define coff_bfd_reloc_name_lookup ppc_coff_reloc_name_lookup |
| 1989 | #define coff_rtype_to_howto coff_ppc_rtype_to_howto |
| 1990 | #define coff_relocate_section coff_ppc_relocate_section |
| 1991 | #define coff_bfd_final_link ppc_bfd_coff_final_link |
| 1992 | |
| 1993 | #ifndef COFF_IMAGE_WITH_PE |
| 1994 | #endif |
| 1995 | |
| 1996 | #define SELECT_RELOC(internal, howto) {internal.r_type=howto->type;} |
| 1997 | |
| 1998 | #define COFF_PAGE_SIZE 0x1000 |
| 1999 | |
| 2000 | /* FIXME: This controls some code that used to be in peicode.h and is |
| 2001 | now in peigen.c. It will not control the code in peigen.c. If |
| 2002 | anybody wants to get this working, you will need to fix that. */ |
| 2003 | #define POWERPC_LE_PE |
| 2004 | |
| 2005 | #define COFF_SECTION_ALIGNMENT_ENTRIES \ |
| 2006 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$2"), \ |
| 2007 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ |
| 2008 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$3"), \ |
| 2009 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 0 }, \ |
| 2010 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$4"), \ |
| 2011 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ |
| 2012 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$5"), \ |
| 2013 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 2 }, \ |
| 2014 | { COFF_SECTION_NAME_EXACT_MATCH (".idata$6"), \ |
| 2015 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 }, \ |
| 2016 | { COFF_SECTION_NAME_EXACT_MATCH (".reloc"), \ |
| 2017 | COFF_ALIGNMENT_FIELD_EMPTY, COFF_ALIGNMENT_FIELD_EMPTY, 1 } |
| 2018 | |
| 2019 | #include "coffcode.h" |
| 2020 | \f |
| 2021 | #ifndef COFF_IMAGE_WITH_PE |
| 2022 | |
| 2023 | static bfd_boolean ppc_do_last PARAMS ((bfd *)); |
| 2024 | static bfd *ppc_get_last PARAMS ((void)); |
| 2025 | |
| 2026 | static bfd_boolean |
| 2027 | ppc_do_last (abfd) |
| 2028 | bfd *abfd; |
| 2029 | { |
| 2030 | if (abfd == bfd_of_toc_owner) |
| 2031 | return TRUE; |
| 2032 | else |
| 2033 | return FALSE; |
| 2034 | } |
| 2035 | |
| 2036 | static bfd * |
| 2037 | ppc_get_last() |
| 2038 | { |
| 2039 | return bfd_of_toc_owner; |
| 2040 | } |
| 2041 | |
| 2042 | /* This piece of machinery exists only to guarantee that the bfd that holds |
| 2043 | the toc section is written last. |
| 2044 | |
| 2045 | This does depend on bfd_make_section attaching a new section to the |
| 2046 | end of the section list for the bfd. |
| 2047 | |
| 2048 | This is otherwise intended to be functionally the same as |
| 2049 | cofflink.c:_bfd_coff_final_link(). It is specifically different only |
| 2050 | where the POWERPC_LE_PE macro modifies the code. It is left in as a |
| 2051 | precise form of comment. krk@cygnus.com */ |
| 2052 | |
| 2053 | /* Do the final link step. */ |
| 2054 | |
| 2055 | bfd_boolean |
| 2056 | ppc_bfd_coff_final_link (abfd, info) |
| 2057 | bfd *abfd; |
| 2058 | struct bfd_link_info *info; |
| 2059 | { |
| 2060 | bfd_size_type symesz; |
| 2061 | struct coff_final_link_info finfo; |
| 2062 | bfd_boolean debug_merge_allocated; |
| 2063 | asection *o; |
| 2064 | struct bfd_link_order *p; |
| 2065 | bfd_size_type max_sym_count; |
| 2066 | bfd_size_type max_lineno_count; |
| 2067 | bfd_size_type max_reloc_count; |
| 2068 | bfd_size_type max_output_reloc_count; |
| 2069 | bfd_size_type max_contents_size; |
| 2070 | file_ptr rel_filepos; |
| 2071 | unsigned int relsz; |
| 2072 | file_ptr line_filepos; |
| 2073 | unsigned int linesz; |
| 2074 | bfd *sub; |
| 2075 | bfd_byte *external_relocs = NULL; |
| 2076 | char strbuf[STRING_SIZE_SIZE]; |
| 2077 | bfd_size_type amt; |
| 2078 | |
| 2079 | symesz = bfd_coff_symesz (abfd); |
| 2080 | |
| 2081 | finfo.info = info; |
| 2082 | finfo.output_bfd = abfd; |
| 2083 | finfo.strtab = NULL; |
| 2084 | finfo.section_info = NULL; |
| 2085 | finfo.last_file_index = -1; |
| 2086 | finfo.last_bf_index = -1; |
| 2087 | finfo.internal_syms = NULL; |
| 2088 | finfo.sec_ptrs = NULL; |
| 2089 | finfo.sym_indices = NULL; |
| 2090 | finfo.outsyms = NULL; |
| 2091 | finfo.linenos = NULL; |
| 2092 | finfo.contents = NULL; |
| 2093 | finfo.external_relocs = NULL; |
| 2094 | finfo.internal_relocs = NULL; |
| 2095 | debug_merge_allocated = FALSE; |
| 2096 | |
| 2097 | coff_data (abfd)->link_info = info; |
| 2098 | |
| 2099 | finfo.strtab = _bfd_stringtab_init (); |
| 2100 | if (finfo.strtab == NULL) |
| 2101 | goto error_return; |
| 2102 | |
| 2103 | if (! coff_debug_merge_hash_table_init (&finfo.debug_merge)) |
| 2104 | goto error_return; |
| 2105 | debug_merge_allocated = TRUE; |
| 2106 | |
| 2107 | /* Compute the file positions for all the sections. */ |
| 2108 | if (! abfd->output_has_begun) |
| 2109 | { |
| 2110 | if (! bfd_coff_compute_section_file_positions (abfd)) |
| 2111 | return FALSE; |
| 2112 | } |
| 2113 | |
| 2114 | /* Count the line numbers and relocation entries required for the |
| 2115 | output file. Set the file positions for the relocs. */ |
| 2116 | rel_filepos = obj_relocbase (abfd); |
| 2117 | relsz = bfd_coff_relsz (abfd); |
| 2118 | max_contents_size = 0; |
| 2119 | max_lineno_count = 0; |
| 2120 | max_reloc_count = 0; |
| 2121 | |
| 2122 | for (o = abfd->sections; o != NULL; o = o->next) |
| 2123 | { |
| 2124 | o->reloc_count = 0; |
| 2125 | o->lineno_count = 0; |
| 2126 | |
| 2127 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
| 2128 | { |
| 2129 | if (p->type == bfd_indirect_link_order) |
| 2130 | { |
| 2131 | asection *sec; |
| 2132 | |
| 2133 | sec = p->u.indirect.section; |
| 2134 | |
| 2135 | /* Mark all sections which are to be included in the |
| 2136 | link. This will normally be every section. We need |
| 2137 | to do this so that we can identify any sections which |
| 2138 | the linker has decided to not include. */ |
| 2139 | sec->linker_mark = TRUE; |
| 2140 | |
| 2141 | if (info->strip == strip_none |
| 2142 | || info->strip == strip_some) |
| 2143 | o->lineno_count += sec->lineno_count; |
| 2144 | |
| 2145 | if (info->relocatable) |
| 2146 | o->reloc_count += sec->reloc_count; |
| 2147 | |
| 2148 | if (sec->rawsize > max_contents_size) |
| 2149 | max_contents_size = sec->rawsize; |
| 2150 | if (sec->size > max_contents_size) |
| 2151 | max_contents_size = sec->size; |
| 2152 | if (sec->lineno_count > max_lineno_count) |
| 2153 | max_lineno_count = sec->lineno_count; |
| 2154 | if (sec->reloc_count > max_reloc_count) |
| 2155 | max_reloc_count = sec->reloc_count; |
| 2156 | } |
| 2157 | else if (info->relocatable |
| 2158 | && (p->type == bfd_section_reloc_link_order |
| 2159 | || p->type == bfd_symbol_reloc_link_order)) |
| 2160 | ++o->reloc_count; |
| 2161 | } |
| 2162 | if (o->reloc_count == 0) |
| 2163 | o->rel_filepos = 0; |
| 2164 | else |
| 2165 | { |
| 2166 | o->flags |= SEC_RELOC; |
| 2167 | o->rel_filepos = rel_filepos; |
| 2168 | rel_filepos += o->reloc_count * relsz; |
| 2169 | } |
| 2170 | } |
| 2171 | |
| 2172 | /* If doing a relocatable link, allocate space for the pointers we |
| 2173 | need to keep. */ |
| 2174 | if (info->relocatable) |
| 2175 | { |
| 2176 | unsigned int i; |
| 2177 | |
| 2178 | /* We use section_count + 1, rather than section_count, because |
| 2179 | the target_index fields are 1 based. */ |
| 2180 | amt = abfd->section_count + 1; |
| 2181 | amt *= sizeof (struct coff_link_section_info); |
| 2182 | finfo.section_info = (struct coff_link_section_info *) bfd_malloc (amt); |
| 2183 | |
| 2184 | if (finfo.section_info == NULL) |
| 2185 | goto error_return; |
| 2186 | |
| 2187 | for (i = 0; i <= abfd->section_count; i++) |
| 2188 | { |
| 2189 | finfo.section_info[i].relocs = NULL; |
| 2190 | finfo.section_info[i].rel_hashes = NULL; |
| 2191 | } |
| 2192 | } |
| 2193 | |
| 2194 | /* We now know the size of the relocs, so we can determine the file |
| 2195 | positions of the line numbers. */ |
| 2196 | line_filepos = rel_filepos; |
| 2197 | linesz = bfd_coff_linesz (abfd); |
| 2198 | max_output_reloc_count = 0; |
| 2199 | |
| 2200 | for (o = abfd->sections; o != NULL; o = o->next) |
| 2201 | { |
| 2202 | if (o->lineno_count == 0) |
| 2203 | o->line_filepos = 0; |
| 2204 | else |
| 2205 | { |
| 2206 | o->line_filepos = line_filepos; |
| 2207 | line_filepos += o->lineno_count * linesz; |
| 2208 | } |
| 2209 | |
| 2210 | if (o->reloc_count != 0) |
| 2211 | { |
| 2212 | /* We don't know the indices of global symbols until we have |
| 2213 | written out all the local symbols. For each section in |
| 2214 | the output file, we keep an array of pointers to hash |
| 2215 | table entries. Each entry in the array corresponds to a |
| 2216 | reloc. When we find a reloc against a global symbol, we |
| 2217 | set the corresponding entry in this array so that we can |
| 2218 | fix up the symbol index after we have written out all the |
| 2219 | local symbols. |
| 2220 | |
| 2221 | Because of this problem, we also keep the relocs in |
| 2222 | memory until the end of the link. This wastes memory, |
| 2223 | but only when doing a relocatable link, which is not the |
| 2224 | common case. */ |
| 2225 | BFD_ASSERT (info->relocatable); |
| 2226 | amt = o->reloc_count; |
| 2227 | amt *= sizeof (struct internal_reloc); |
| 2228 | finfo.section_info[o->target_index].relocs = |
| 2229 | (struct internal_reloc *) bfd_malloc (amt); |
| 2230 | amt = o->reloc_count; |
| 2231 | amt *= sizeof (struct coff_link_hash_entry *); |
| 2232 | finfo.section_info[o->target_index].rel_hashes = |
| 2233 | (struct coff_link_hash_entry **) bfd_malloc (amt); |
| 2234 | if (finfo.section_info[o->target_index].relocs == NULL |
| 2235 | || finfo.section_info[o->target_index].rel_hashes == NULL) |
| 2236 | goto error_return; |
| 2237 | |
| 2238 | if (o->reloc_count > max_output_reloc_count) |
| 2239 | max_output_reloc_count = o->reloc_count; |
| 2240 | } |
| 2241 | |
| 2242 | /* Reset the reloc and lineno counts, so that we can use them to |
| 2243 | count the number of entries we have output so far. */ |
| 2244 | o->reloc_count = 0; |
| 2245 | o->lineno_count = 0; |
| 2246 | } |
| 2247 | |
| 2248 | obj_sym_filepos (abfd) = line_filepos; |
| 2249 | |
| 2250 | /* Figure out the largest number of symbols in an input BFD. Take |
| 2251 | the opportunity to clear the output_has_begun fields of all the |
| 2252 | input BFD's. */ |
| 2253 | max_sym_count = 0; |
| 2254 | for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) |
| 2255 | { |
| 2256 | bfd_size_type sz; |
| 2257 | |
| 2258 | sub->output_has_begun = FALSE; |
| 2259 | sz = obj_raw_syment_count (sub); |
| 2260 | if (sz > max_sym_count) |
| 2261 | max_sym_count = sz; |
| 2262 | } |
| 2263 | |
| 2264 | /* Allocate some buffers used while linking. */ |
| 2265 | amt = max_sym_count * sizeof (struct internal_syment); |
| 2266 | finfo.internal_syms = (struct internal_syment *) bfd_malloc (amt); |
| 2267 | amt = max_sym_count * sizeof (asection *); |
| 2268 | finfo.sec_ptrs = (asection **) bfd_malloc (amt); |
| 2269 | amt = max_sym_count * sizeof (long); |
| 2270 | finfo.sym_indices = (long *) bfd_malloc (amt); |
| 2271 | amt = (max_sym_count + 1) * symesz; |
| 2272 | finfo.outsyms = (bfd_byte *) bfd_malloc (amt); |
| 2273 | amt = max_lineno_count * bfd_coff_linesz (abfd); |
| 2274 | finfo.linenos = (bfd_byte *) bfd_malloc (amt); |
| 2275 | finfo.contents = (bfd_byte *) bfd_malloc (max_contents_size); |
| 2276 | finfo.external_relocs = (bfd_byte *) bfd_malloc (max_reloc_count * relsz); |
| 2277 | if (! info->relocatable) |
| 2278 | { |
| 2279 | amt = max_reloc_count * sizeof (struct internal_reloc); |
| 2280 | finfo.internal_relocs = (struct internal_reloc *) bfd_malloc (amt); |
| 2281 | } |
| 2282 | if ((finfo.internal_syms == NULL && max_sym_count > 0) |
| 2283 | || (finfo.sec_ptrs == NULL && max_sym_count > 0) |
| 2284 | || (finfo.sym_indices == NULL && max_sym_count > 0) |
| 2285 | || finfo.outsyms == NULL |
| 2286 | || (finfo.linenos == NULL && max_lineno_count > 0) |
| 2287 | || (finfo.contents == NULL && max_contents_size > 0) |
| 2288 | || (finfo.external_relocs == NULL && max_reloc_count > 0) |
| 2289 | || (! info->relocatable |
| 2290 | && finfo.internal_relocs == NULL |
| 2291 | && max_reloc_count > 0)) |
| 2292 | goto error_return; |
| 2293 | |
| 2294 | /* We now know the position of everything in the file, except that |
| 2295 | we don't know the size of the symbol table and therefore we don't |
| 2296 | know where the string table starts. We just build the string |
| 2297 | table in memory as we go along. We process all the relocations |
| 2298 | for a single input file at once. */ |
| 2299 | obj_raw_syment_count (abfd) = 0; |
| 2300 | |
| 2301 | if (coff_backend_info (abfd)->_bfd_coff_start_final_link) |
| 2302 | { |
| 2303 | if (! bfd_coff_start_final_link (abfd, info)) |
| 2304 | goto error_return; |
| 2305 | } |
| 2306 | |
| 2307 | for (o = abfd->sections; o != NULL; o = o->next) |
| 2308 | { |
| 2309 | for (p = o->map_head.link_order; p != NULL; p = p->next) |
| 2310 | { |
| 2311 | if (p->type == bfd_indirect_link_order |
| 2312 | && (bfd_get_flavour (p->u.indirect.section->owner) |
| 2313 | == bfd_target_coff_flavour)) |
| 2314 | { |
| 2315 | sub = p->u.indirect.section->owner; |
| 2316 | #ifdef POWERPC_LE_PE |
| 2317 | if (! sub->output_has_begun && !ppc_do_last(sub)) |
| 2318 | #else |
| 2319 | if (! sub->output_has_begun) |
| 2320 | #endif |
| 2321 | { |
| 2322 | if (! _bfd_coff_link_input_bfd (&finfo, sub)) |
| 2323 | goto error_return; |
| 2324 | sub->output_has_begun = TRUE; |
| 2325 | } |
| 2326 | } |
| 2327 | else if (p->type == bfd_section_reloc_link_order |
| 2328 | || p->type == bfd_symbol_reloc_link_order) |
| 2329 | { |
| 2330 | if (! _bfd_coff_reloc_link_order (abfd, &finfo, o, p)) |
| 2331 | goto error_return; |
| 2332 | } |
| 2333 | else |
| 2334 | { |
| 2335 | if (! _bfd_default_link_order (abfd, info, o, p)) |
| 2336 | goto error_return; |
| 2337 | } |
| 2338 | } |
| 2339 | } |
| 2340 | |
| 2341 | #ifdef POWERPC_LE_PE |
| 2342 | { |
| 2343 | bfd* last_one = ppc_get_last(); |
| 2344 | if (last_one) |
| 2345 | { |
| 2346 | if (! _bfd_coff_link_input_bfd (&finfo, last_one)) |
| 2347 | goto error_return; |
| 2348 | } |
| 2349 | last_one->output_has_begun = TRUE; |
| 2350 | } |
| 2351 | #endif |
| 2352 | |
| 2353 | /* Free up the buffers used by _bfd_coff_link_input_bfd. */ |
| 2354 | coff_debug_merge_hash_table_free (&finfo.debug_merge); |
| 2355 | debug_merge_allocated = FALSE; |
| 2356 | |
| 2357 | if (finfo.internal_syms != NULL) |
| 2358 | { |
| 2359 | free (finfo.internal_syms); |
| 2360 | finfo.internal_syms = NULL; |
| 2361 | } |
| 2362 | if (finfo.sec_ptrs != NULL) |
| 2363 | { |
| 2364 | free (finfo.sec_ptrs); |
| 2365 | finfo.sec_ptrs = NULL; |
| 2366 | } |
| 2367 | if (finfo.sym_indices != NULL) |
| 2368 | { |
| 2369 | free (finfo.sym_indices); |
| 2370 | finfo.sym_indices = NULL; |
| 2371 | } |
| 2372 | if (finfo.linenos != NULL) |
| 2373 | { |
| 2374 | free (finfo.linenos); |
| 2375 | finfo.linenos = NULL; |
| 2376 | } |
| 2377 | if (finfo.contents != NULL) |
| 2378 | { |
| 2379 | free (finfo.contents); |
| 2380 | finfo.contents = NULL; |
| 2381 | } |
| 2382 | if (finfo.external_relocs != NULL) |
| 2383 | { |
| 2384 | free (finfo.external_relocs); |
| 2385 | finfo.external_relocs = NULL; |
| 2386 | } |
| 2387 | if (finfo.internal_relocs != NULL) |
| 2388 | { |
| 2389 | free (finfo.internal_relocs); |
| 2390 | finfo.internal_relocs = NULL; |
| 2391 | } |
| 2392 | |
| 2393 | /* The value of the last C_FILE symbol is supposed to be the symbol |
| 2394 | index of the first external symbol. Write it out again if |
| 2395 | necessary. */ |
| 2396 | if (finfo.last_file_index != -1 |
| 2397 | && (unsigned int) finfo.last_file.n_value != obj_raw_syment_count (abfd)) |
| 2398 | { |
| 2399 | file_ptr pos; |
| 2400 | |
| 2401 | finfo.last_file.n_value = obj_raw_syment_count (abfd); |
| 2402 | bfd_coff_swap_sym_out (abfd, (PTR) &finfo.last_file, |
| 2403 | (PTR) finfo.outsyms); |
| 2404 | pos = obj_sym_filepos (abfd) + finfo.last_file_index * symesz; |
| 2405 | if (bfd_seek (abfd, pos, SEEK_SET) != 0 |
| 2406 | || bfd_bwrite (finfo.outsyms, symesz, abfd) != symesz) |
| 2407 | return FALSE; |
| 2408 | } |
| 2409 | |
| 2410 | /* Write out the global symbols. */ |
| 2411 | finfo.failed = FALSE; |
| 2412 | coff_link_hash_traverse (coff_hash_table (info), _bfd_coff_write_global_sym, |
| 2413 | (PTR) &finfo); |
| 2414 | if (finfo.failed) |
| 2415 | goto error_return; |
| 2416 | |
| 2417 | /* The outsyms buffer is used by _bfd_coff_write_global_sym. */ |
| 2418 | if (finfo.outsyms != NULL) |
| 2419 | { |
| 2420 | free (finfo.outsyms); |
| 2421 | finfo.outsyms = NULL; |
| 2422 | } |
| 2423 | |
| 2424 | if (info->relocatable) |
| 2425 | { |
| 2426 | /* Now that we have written out all the global symbols, we know |
| 2427 | the symbol indices to use for relocs against them, and we can |
| 2428 | finally write out the relocs. */ |
| 2429 | amt = max_output_reloc_count * relsz; |
| 2430 | external_relocs = (bfd_byte *) bfd_malloc (amt); |
| 2431 | if (external_relocs == NULL) |
| 2432 | goto error_return; |
| 2433 | |
| 2434 | for (o = abfd->sections; o != NULL; o = o->next) |
| 2435 | { |
| 2436 | struct internal_reloc *irel; |
| 2437 | struct internal_reloc *irelend; |
| 2438 | struct coff_link_hash_entry **rel_hash; |
| 2439 | bfd_byte *erel; |
| 2440 | |
| 2441 | if (o->reloc_count == 0) |
| 2442 | continue; |
| 2443 | |
| 2444 | irel = finfo.section_info[o->target_index].relocs; |
| 2445 | irelend = irel + o->reloc_count; |
| 2446 | rel_hash = finfo.section_info[o->target_index].rel_hashes; |
| 2447 | erel = external_relocs; |
| 2448 | for (; irel < irelend; irel++, rel_hash++, erel += relsz) |
| 2449 | { |
| 2450 | if (*rel_hash != NULL) |
| 2451 | { |
| 2452 | BFD_ASSERT ((*rel_hash)->indx >= 0); |
| 2453 | irel->r_symndx = (*rel_hash)->indx; |
| 2454 | } |
| 2455 | bfd_coff_swap_reloc_out (abfd, (PTR) irel, (PTR) erel); |
| 2456 | } |
| 2457 | |
| 2458 | amt = relsz * o->reloc_count; |
| 2459 | if (bfd_seek (abfd, o->rel_filepos, SEEK_SET) != 0 |
| 2460 | || bfd_bwrite ((PTR) external_relocs, amt, abfd) != amt) |
| 2461 | goto error_return; |
| 2462 | } |
| 2463 | |
| 2464 | free (external_relocs); |
| 2465 | external_relocs = NULL; |
| 2466 | } |
| 2467 | |
| 2468 | /* Free up the section information. */ |
| 2469 | if (finfo.section_info != NULL) |
| 2470 | { |
| 2471 | unsigned int i; |
| 2472 | |
| 2473 | for (i = 0; i < abfd->section_count; i++) |
| 2474 | { |
| 2475 | if (finfo.section_info[i].relocs != NULL) |
| 2476 | free (finfo.section_info[i].relocs); |
| 2477 | if (finfo.section_info[i].rel_hashes != NULL) |
| 2478 | free (finfo.section_info[i].rel_hashes); |
| 2479 | } |
| 2480 | free (finfo.section_info); |
| 2481 | finfo.section_info = NULL; |
| 2482 | } |
| 2483 | |
| 2484 | /* If we have optimized stabs strings, output them. */ |
| 2485 | if (coff_hash_table (info)->stab_info.stabstr != NULL) |
| 2486 | { |
| 2487 | if (! _bfd_write_stab_strings (abfd, &coff_hash_table (info)->stab_info)) |
| 2488 | return FALSE; |
| 2489 | } |
| 2490 | |
| 2491 | /* Write out the string table. */ |
| 2492 | if (obj_raw_syment_count (abfd) != 0) |
| 2493 | { |
| 2494 | file_ptr pos; |
| 2495 | |
| 2496 | pos = obj_sym_filepos (abfd) + obj_raw_syment_count (abfd) * symesz; |
| 2497 | if (bfd_seek (abfd, pos, SEEK_SET) != 0) |
| 2498 | return FALSE; |
| 2499 | |
| 2500 | #if STRING_SIZE_SIZE == 4 |
| 2501 | H_PUT_32 (abfd, |
| 2502 | _bfd_stringtab_size (finfo.strtab) + STRING_SIZE_SIZE, |
| 2503 | strbuf); |
| 2504 | #else |
| 2505 | #error Change H_PUT_32 above |
| 2506 | #endif |
| 2507 | |
| 2508 | if (bfd_bwrite (strbuf, (bfd_size_type) STRING_SIZE_SIZE, abfd) |
| 2509 | != STRING_SIZE_SIZE) |
| 2510 | return FALSE; |
| 2511 | |
| 2512 | if (! _bfd_stringtab_emit (abfd, finfo.strtab)) |
| 2513 | return FALSE; |
| 2514 | } |
| 2515 | |
| 2516 | _bfd_stringtab_free (finfo.strtab); |
| 2517 | |
| 2518 | /* Setting bfd_get_symcount to 0 will cause write_object_contents to |
| 2519 | not try to write out the symbols. */ |
| 2520 | bfd_get_symcount (abfd) = 0; |
| 2521 | |
| 2522 | return TRUE; |
| 2523 | |
| 2524 | error_return: |
| 2525 | if (debug_merge_allocated) |
| 2526 | coff_debug_merge_hash_table_free (&finfo.debug_merge); |
| 2527 | if (finfo.strtab != NULL) |
| 2528 | _bfd_stringtab_free (finfo.strtab); |
| 2529 | if (finfo.section_info != NULL) |
| 2530 | { |
| 2531 | unsigned int i; |
| 2532 | |
| 2533 | for (i = 0; i < abfd->section_count; i++) |
| 2534 | { |
| 2535 | if (finfo.section_info[i].relocs != NULL) |
| 2536 | free (finfo.section_info[i].relocs); |
| 2537 | if (finfo.section_info[i].rel_hashes != NULL) |
| 2538 | free (finfo.section_info[i].rel_hashes); |
| 2539 | } |
| 2540 | free (finfo.section_info); |
| 2541 | } |
| 2542 | if (finfo.internal_syms != NULL) |
| 2543 | free (finfo.internal_syms); |
| 2544 | if (finfo.sec_ptrs != NULL) |
| 2545 | free (finfo.sec_ptrs); |
| 2546 | if (finfo.sym_indices != NULL) |
| 2547 | free (finfo.sym_indices); |
| 2548 | if (finfo.outsyms != NULL) |
| 2549 | free (finfo.outsyms); |
| 2550 | if (finfo.linenos != NULL) |
| 2551 | free (finfo.linenos); |
| 2552 | if (finfo.contents != NULL) |
| 2553 | free (finfo.contents); |
| 2554 | if (finfo.external_relocs != NULL) |
| 2555 | free (finfo.external_relocs); |
| 2556 | if (finfo.internal_relocs != NULL) |
| 2557 | free (finfo.internal_relocs); |
| 2558 | if (external_relocs != NULL) |
| 2559 | free (external_relocs); |
| 2560 | return FALSE; |
| 2561 | } |
| 2562 | #endif |
| 2563 | \f |
| 2564 | /* Forward declaration for use by alternative_target field. */ |
| 2565 | #ifdef TARGET_BIG_SYM |
| 2566 | extern const bfd_target TARGET_BIG_SYM; |
| 2567 | #endif |
| 2568 | |
| 2569 | /* The transfer vectors that lead the outside world to all of the above. */ |
| 2570 | |
| 2571 | #ifdef TARGET_LITTLE_SYM |
| 2572 | const bfd_target TARGET_LITTLE_SYM = |
| 2573 | { |
| 2574 | TARGET_LITTLE_NAME, /* name or coff-arm-little */ |
| 2575 | bfd_target_coff_flavour, |
| 2576 | BFD_ENDIAN_LITTLE, /* data byte order is little */ |
| 2577 | BFD_ENDIAN_LITTLE, /* header byte order is little */ |
| 2578 | |
| 2579 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ |
| 2580 | HAS_LINENO | HAS_DEBUG | |
| 2581 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| 2582 | |
| 2583 | #ifndef COFF_WITH_PE |
| 2584 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 2585 | #else |
| 2586 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ |
| 2587 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), |
| 2588 | #endif |
| 2589 | |
| 2590 | 0, /* leading char */ |
| 2591 | '/', /* ar_pad_char */ |
| 2592 | 15, /* ar_max_namelen??? FIXMEmgo */ |
| 2593 | |
| 2594 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 2595 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 2596 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ |
| 2597 | |
| 2598 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, |
| 2599 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, |
| 2600 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ |
| 2601 | |
| 2602 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
| 2603 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, |
| 2604 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ |
| 2605 | bfd_false}, |
| 2606 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ |
| 2607 | _bfd_write_archive_contents, bfd_false}, |
| 2608 | |
| 2609 | BFD_JUMP_TABLE_GENERIC (coff), |
| 2610 | BFD_JUMP_TABLE_COPY (coff), |
| 2611 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 2612 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), |
| 2613 | BFD_JUMP_TABLE_SYMBOLS (coff), |
| 2614 | BFD_JUMP_TABLE_RELOCS (coff), |
| 2615 | BFD_JUMP_TABLE_WRITE (coff), |
| 2616 | BFD_JUMP_TABLE_LINK (coff), |
| 2617 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 2618 | |
| 2619 | /* Alternative_target. */ |
| 2620 | #ifdef TARGET_BIG_SYM |
| 2621 | & TARGET_BIG_SYM, |
| 2622 | #else |
| 2623 | NULL, |
| 2624 | #endif |
| 2625 | |
| 2626 | COFF_SWAP_TABLE |
| 2627 | }; |
| 2628 | #endif |
| 2629 | |
| 2630 | #ifdef TARGET_BIG_SYM |
| 2631 | const bfd_target TARGET_BIG_SYM = |
| 2632 | { |
| 2633 | TARGET_BIG_NAME, |
| 2634 | bfd_target_coff_flavour, |
| 2635 | BFD_ENDIAN_BIG, /* data byte order is big */ |
| 2636 | BFD_ENDIAN_BIG, /* header byte order is big */ |
| 2637 | |
| 2638 | (HAS_RELOC | EXEC_P | /* FIXME: object flags */ |
| 2639 | HAS_LINENO | HAS_DEBUG | |
| 2640 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), |
| 2641 | |
| 2642 | #ifndef COFF_WITH_PE |
| 2643 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */ |
| 2644 | #else |
| 2645 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ |
| 2646 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), |
| 2647 | #endif |
| 2648 | |
| 2649 | 0, /* leading char */ |
| 2650 | '/', /* ar_pad_char */ |
| 2651 | 15, /* ar_max_namelen??? FIXMEmgo */ |
| 2652 | |
| 2653 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 2654 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 2655 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* data */ |
| 2656 | |
| 2657 | bfd_getb64, bfd_getb_signed_64, bfd_putb64, |
| 2658 | bfd_getb32, bfd_getb_signed_32, bfd_putb32, |
| 2659 | bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* hdrs */ |
| 2660 | |
| 2661 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
| 2662 | bfd_generic_archive_p, /* _bfd_dummy_target */ coff_object_p }, |
| 2663 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ |
| 2664 | bfd_false}, |
| 2665 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ |
| 2666 | _bfd_write_archive_contents, bfd_false}, |
| 2667 | |
| 2668 | BFD_JUMP_TABLE_GENERIC (coff), |
| 2669 | BFD_JUMP_TABLE_COPY (coff), |
| 2670 | BFD_JUMP_TABLE_CORE (_bfd_nocore), |
| 2671 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), |
| 2672 | BFD_JUMP_TABLE_SYMBOLS (coff), |
| 2673 | BFD_JUMP_TABLE_RELOCS (coff), |
| 2674 | BFD_JUMP_TABLE_WRITE (coff), |
| 2675 | BFD_JUMP_TABLE_LINK (coff), |
| 2676 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), |
| 2677 | |
| 2678 | /* Alternative_target. */ |
| 2679 | #ifdef TARGET_LITTLE_SYM |
| 2680 | & TARGET_LITTLE_SYM, |
| 2681 | #else |
| 2682 | NULL, |
| 2683 | #endif |
| 2684 | |
| 2685 | COFF_SWAP_TABLE |
| 2686 | }; |
| 2687 | |
| 2688 | #endif |