| 1 | /* BFD back-end for Motorola MCore COFF/PE |
| 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2004 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of BFD, the Binary File Descriptor library. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, 59 Temple Place - Suite 330, |
| 20 | Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | #include "bfd.h" |
| 23 | #include "sysdep.h" |
| 24 | #include "libbfd.h" |
| 25 | #include "coff/mcore.h" |
| 26 | #include "coff/internal.h" |
| 27 | #include "coff/pe.h" |
| 28 | #include "libcoff.h" |
| 29 | |
| 30 | #ifdef BADMAG |
| 31 | #undef BADMAG |
| 32 | #endif |
| 33 | #define BADMAG(x) MCOREBADMAG(x) |
| 34 | |
| 35 | #ifndef NUM_ELEM |
| 36 | #define NUM_ELEM(A) (sizeof (A) / sizeof (A)[0]) |
| 37 | #endif |
| 38 | |
| 39 | /* This file is compiled more than once, but we only compile the |
| 40 | final_link routine once. */ |
| 41 | extern bfd_boolean mcore_bfd_coff_final_link |
| 42 | PARAMS ((bfd *, struct bfd_link_info *)); |
| 43 | #if 0 |
| 44 | static struct bfd_link_hash_table *coff_mcore_link_hash_table_create |
| 45 | PARAMS ((bfd *)); |
| 46 | #endif |
| 47 | static bfd_reloc_status_type mcore_coff_unsupported_reloc |
| 48 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| 49 | static bfd_boolean coff_mcore_relocate_section |
| 50 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, |
| 51 | struct internal_reloc *, struct internal_syment *, asection **)); |
| 52 | static reloc_howto_type *mcore_coff_reloc_type_lookup |
| 53 | PARAMS ((bfd *, bfd_reloc_code_real_type)); |
| 54 | static reloc_howto_type *coff_mcore_rtype_to_howto |
| 55 | PARAMS ((bfd *, asection *, struct internal_reloc *, |
| 56 | struct coff_link_hash_entry *, struct internal_syment *, |
| 57 | bfd_vma *)); |
| 58 | static void mcore_emit_base_file_entry |
| 59 | PARAMS ((struct bfd_link_info *, bfd *, asection *, bfd_vma)); |
| 60 | static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *)); |
| 61 | \f |
| 62 | /* The NT loader points the toc register to &toc + 32768, in order to |
| 63 | use the complete range of a 16-bit displacement. We have to adjust |
| 64 | for this when we fix up loads displaced off the toc reg. */ |
| 65 | #define TOC_LOAD_ADJUSTMENT (-32768) |
| 66 | #define TOC_SECTION_NAME ".private.toc" |
| 67 | |
| 68 | /* The main body of code is in coffcode.h. */ |
| 69 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2 |
| 70 | |
| 71 | /* In case we're on a 32-bit machine, construct a 64-bit "-1" value |
| 72 | from smaller values. Start with zero, widen, *then* decrement. */ |
| 73 | #define MINUS_ONE (((bfd_vma)0) - 1) |
| 74 | \f |
| 75 | static reloc_howto_type mcore_coff_howto_table[] = |
| 76 | { |
| 77 | /* Unused: */ |
| 78 | HOWTO (IMAGE_REL_MCORE_ABSOLUTE,/* type */ |
| 79 | 0, /* rightshift */ |
| 80 | 0, /* size (0 = byte, 1 = short, 2 = long) */ |
| 81 | 0, /* bitsize */ |
| 82 | FALSE, /* pc_relative */ |
| 83 | 0, /* bitpos */ |
| 84 | complain_overflow_dont, /* dont complain_on_overflow */ |
| 85 | NULL, /* special_function */ |
| 86 | "ABSOLUTE", /* name */ |
| 87 | FALSE, /* partial_inplace */ |
| 88 | 0x00, /* src_mask */ |
| 89 | 0x00, /* dst_mask */ |
| 90 | FALSE), /* pcrel_offset */ |
| 91 | |
| 92 | HOWTO (IMAGE_REL_MCORE_ADDR32,/* type */ |
| 93 | 0, /* rightshift */ |
| 94 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 95 | 32, /* bitsize */ |
| 96 | FALSE, /* pc_relative */ |
| 97 | 0, /* bitpos */ |
| 98 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 99 | NULL, /* special_function */ |
| 100 | "ADDR32", /* name */ |
| 101 | TRUE, /* partial_inplace */ |
| 102 | 0xffffffff, /* src_mask */ |
| 103 | 0xffffffff, /* dst_mask */ |
| 104 | FALSE), /* pcrel_offset */ |
| 105 | |
| 106 | /* 8 bits + 2 zero bits; jmpi/jsri/lrw instructions. |
| 107 | Should not appear in object files. */ |
| 108 | HOWTO (IMAGE_REL_MCORE_PCREL_IMM8BY4, /* type */ |
| 109 | 2, /* rightshift */ |
| 110 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 111 | 8, /* bitsize */ |
| 112 | TRUE, /* pc_relative */ |
| 113 | 0, /* bitpos */ |
| 114 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 115 | mcore_coff_unsupported_reloc, /* special_function */ |
| 116 | "IMM8BY4", /* name */ |
| 117 | FALSE, /* partial_inplace */ |
| 118 | 0, /* src_mask */ |
| 119 | 0, /* dst_mask */ |
| 120 | TRUE), /* pcrel_offset */ |
| 121 | |
| 122 | /* bsr/bt/bf/br instructions; 11 bits + 1 zero bit |
| 123 | Span 2k instructions == 4k bytes. |
| 124 | Only useful pieces at the relocated address are the opcode (5 bits) */ |
| 125 | HOWTO (IMAGE_REL_MCORE_PCREL_IMM11BY2,/* type */ |
| 126 | 1, /* rightshift */ |
| 127 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 128 | 11, /* bitsize */ |
| 129 | TRUE, /* pc_relative */ |
| 130 | 0, /* bitpos */ |
| 131 | complain_overflow_signed, /* complain_on_overflow */ |
| 132 | NULL, /* special_function */ |
| 133 | "IMM11BY2", /* name */ |
| 134 | FALSE, /* partial_inplace */ |
| 135 | 0x0, /* src_mask */ |
| 136 | 0x7ff, /* dst_mask */ |
| 137 | TRUE), /* pcrel_offset */ |
| 138 | |
| 139 | /* 4 bits + 1 zero bit; 'loopt' instruction only; unsupported. */ |
| 140 | HOWTO (IMAGE_REL_MCORE_PCREL_IMM4BY2, /* type */ |
| 141 | 1, /* rightshift */ |
| 142 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 143 | 4, /* bitsize */ |
| 144 | TRUE, /* pc_relative */ |
| 145 | 0, /* bitpos */ |
| 146 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 147 | mcore_coff_unsupported_reloc, /* special_function */ |
| 148 | "IMM4BY2", /* name */ |
| 149 | FALSE, /* partial_inplace */ |
| 150 | 0, /* src_mask */ |
| 151 | 0, /* dst_mask */ |
| 152 | TRUE), /* pcrel_offset */ |
| 153 | |
| 154 | /* 32-bit pc-relative. Eventually this will help support PIC code. */ |
| 155 | HOWTO (IMAGE_REL_MCORE_PCREL_32,/* type */ |
| 156 | 0, /* rightshift */ |
| 157 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 158 | 32, /* bitsize */ |
| 159 | TRUE, /* pc_relative */ |
| 160 | 0, /* bitpos */ |
| 161 | complain_overflow_bitfield, /* complain_on_overflow */ |
| 162 | NULL, /* special_function */ |
| 163 | "PCREL_32", /* name */ |
| 164 | FALSE, /* partial_inplace */ |
| 165 | 0x0, /* src_mask */ |
| 166 | 0xffffffff, /* dst_mask */ |
| 167 | TRUE), /* pcrel_offset */ |
| 168 | |
| 169 | /* Like PCREL_IMM11BY2, this relocation indicates that there is a |
| 170 | 'jsri' at the specified address. There is a separate relocation |
| 171 | entry for the literal pool entry that it references, but we |
| 172 | might be able to change the jsri to a bsr if the target turns out |
| 173 | to be close enough [even though we won't reclaim the literal pool |
| 174 | entry, we'll get some runtime efficiency back]. Note that this |
| 175 | is a relocation that we are allowed to safely ignore. */ |
| 176 | HOWTO (IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2,/* type */ |
| 177 | 1, /* rightshift */ |
| 178 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 179 | 11, /* bitsize */ |
| 180 | TRUE, /* pc_relative */ |
| 181 | 0, /* bitpos */ |
| 182 | complain_overflow_signed, /* complain_on_overflow */ |
| 183 | NULL, /* special_function */ |
| 184 | "JSR_IMM11BY2", /* name */ |
| 185 | FALSE, /* partial_inplace */ |
| 186 | 0x0, /* src_mask */ |
| 187 | 0x7ff, /* dst_mask */ |
| 188 | TRUE), /* pcrel_offset */ |
| 189 | |
| 190 | HOWTO (IMAGE_REL_MCORE_RVA, /* type */ |
| 191 | 0, /* rightshift */ |
| 192 | 2, /* size (0 = byte, 1 = short, 2 = long) */ |
| 193 | 32, /* bitsize */ |
| 194 | FALSE, /* pc_relative */ |
| 195 | 0, /* bitpos */ |
| 196 | complain_overflow_signed, /* complain_on_overflow */ |
| 197 | NULL, /* special_function */ |
| 198 | "MCORE_RVA", /* name */ |
| 199 | TRUE, /* partial_inplace */ |
| 200 | 0xffffffff, /* src_mask */ |
| 201 | 0xffffffff, /* dst_mask */ |
| 202 | TRUE) /* pcrel_offset */ |
| 203 | }; |
| 204 | \f |
| 205 | /* Extend the coff_link_hash_table structure with a few M*Core specific fields. |
| 206 | This allows us to store global data here without actually creating any |
| 207 | global variables, which is a no-no in the BFD world. */ |
| 208 | typedef struct coff_mcore_link_hash_table |
| 209 | { |
| 210 | /* The original coff_link_hash_table structure. MUST be first field. */ |
| 211 | struct coff_link_hash_table root; |
| 212 | |
| 213 | bfd * bfd_of_toc_owner; |
| 214 | long int global_toc_size; |
| 215 | long int import_table_size; |
| 216 | long int first_thunk_address; |
| 217 | long int thunk_size; |
| 218 | } |
| 219 | mcore_hash_table; |
| 220 | |
| 221 | /* Get the MCore coff linker hash table from a link_info structure. */ |
| 222 | #define coff_mcore_hash_table(info) \ |
| 223 | ((mcore_hash_table *) ((info)->hash)) |
| 224 | |
| 225 | #if 0 |
| 226 | /* Create an MCore coff linker hash table. */ |
| 227 | |
| 228 | static struct bfd_link_hash_table * |
| 229 | coff_mcore_link_hash_table_create (abfd) |
| 230 | bfd * abfd; |
| 231 | { |
| 232 | mcore_hash_table * ret; |
| 233 | |
| 234 | ret = (mcore_hash_table *) bfd_malloc ((bfd_size_type) sizeof (* ret)); |
| 235 | if (ret == (mcore_hash_table *) NULL) |
| 236 | return NULL; |
| 237 | |
| 238 | if (! _bfd_coff_link_hash_table_init |
| 239 | (& ret->root, abfd, _bfd_coff_link_hash_newfunc)) |
| 240 | { |
| 241 | free (ret); |
| 242 | return (struct bfd_link_hash_table *) NULL; |
| 243 | } |
| 244 | |
| 245 | ret->bfd_of_toc_owner = NULL; |
| 246 | ret->global_toc_size = 0; |
| 247 | ret->import_table_size = 0; |
| 248 | ret->first_thunk_address = 0; |
| 249 | ret->thunk_size = 0; |
| 250 | |
| 251 | return & ret->root.root; |
| 252 | } |
| 253 | #endif |
| 254 | \f |
| 255 | /* Add an entry to the base file. */ |
| 256 | |
| 257 | static void |
| 258 | mcore_emit_base_file_entry (info, output_bfd, input_section, reloc_offset) |
| 259 | struct bfd_link_info * info; |
| 260 | bfd * output_bfd; |
| 261 | asection * input_section; |
| 262 | bfd_vma reloc_offset; |
| 263 | { |
| 264 | bfd_vma addr = reloc_offset |
| 265 | - input_section->vma |
| 266 | + input_section->output_offset |
| 267 | + input_section->output_section->vma; |
| 268 | |
| 269 | if (coff_data (output_bfd)->pe) |
| 270 | addr -= pe_data (output_bfd)->pe_opthdr.ImageBase; |
| 271 | |
| 272 | fwrite (&addr, 1, sizeof (addr), (FILE *) info->base_file); |
| 273 | } |
| 274 | \f |
| 275 | static bfd_reloc_status_type |
| 276 | mcore_coff_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section, |
| 277 | output_bfd, error_message) |
| 278 | bfd * abfd; |
| 279 | arelent * reloc_entry; |
| 280 | asymbol * symbol ATTRIBUTE_UNUSED; |
| 281 | PTR data ATTRIBUTE_UNUSED; |
| 282 | asection * input_section ATTRIBUTE_UNUSED; |
| 283 | bfd * output_bfd ATTRIBUTE_UNUSED; |
| 284 | char ** error_message ATTRIBUTE_UNUSED; |
| 285 | { |
| 286 | BFD_ASSERT (reloc_entry->howto != (reloc_howto_type *)0); |
| 287 | |
| 288 | _bfd_error_handler (_("%B: Relocation %s (%d) is not currently supported.\n"), |
| 289 | abfd, |
| 290 | reloc_entry->howto->name, |
| 291 | reloc_entry->howto->type); |
| 292 | |
| 293 | return bfd_reloc_notsupported; |
| 294 | } |
| 295 | \f |
| 296 | /* A cheesy little macro to make the code a little more readable. */ |
| 297 | #define HOW2MAP(bfd_rtype, mcore_rtype) \ |
| 298 | case bfd_rtype: return & mcore_coff_howto_table [mcore_rtype] |
| 299 | |
| 300 | static reloc_howto_type * |
| 301 | mcore_coff_reloc_type_lookup (abfd, code) |
| 302 | bfd * abfd ATTRIBUTE_UNUSED; |
| 303 | bfd_reloc_code_real_type code; |
| 304 | { |
| 305 | switch (code) |
| 306 | { |
| 307 | HOW2MAP (BFD_RELOC_32, IMAGE_REL_MCORE_ADDR32); |
| 308 | HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM8BY4, IMAGE_REL_MCORE_PCREL_IMM8BY4); |
| 309 | HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM11BY2, IMAGE_REL_MCORE_PCREL_IMM11BY2); |
| 310 | HOW2MAP (BFD_RELOC_MCORE_PCREL_IMM4BY2, IMAGE_REL_MCORE_PCREL_IMM4BY2); |
| 311 | HOW2MAP (BFD_RELOC_32_PCREL, IMAGE_REL_MCORE_PCREL_32); |
| 312 | HOW2MAP (BFD_RELOC_MCORE_PCREL_JSR_IMM11BY2, IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2); |
| 313 | HOW2MAP (BFD_RELOC_RVA, IMAGE_REL_MCORE_RVA); |
| 314 | default: |
| 315 | return NULL; |
| 316 | } |
| 317 | /*NOTREACHED*/ |
| 318 | } |
| 319 | |
| 320 | #undef HOW2MAP |
| 321 | |
| 322 | #define RTYPE2HOWTO(cache_ptr, dst) \ |
| 323 | (cache_ptr)->howto = mcore_coff_howto_table + (dst)->r_type; |
| 324 | |
| 325 | static reloc_howto_type * |
| 326 | coff_mcore_rtype_to_howto (abfd, sec, rel, h, sym, addendp) |
| 327 | bfd * abfd ATTRIBUTE_UNUSED; |
| 328 | asection * sec; |
| 329 | struct internal_reloc * rel; |
| 330 | struct coff_link_hash_entry * h ATTRIBUTE_UNUSED; |
| 331 | struct internal_syment * sym; |
| 332 | bfd_vma * addendp; |
| 333 | { |
| 334 | reloc_howto_type * howto; |
| 335 | |
| 336 | if (rel->r_type >= NUM_ELEM (mcore_coff_howto_table)) |
| 337 | return NULL; |
| 338 | |
| 339 | howto = mcore_coff_howto_table + rel->r_type; |
| 340 | |
| 341 | if (rel->r_type == IMAGE_REL_MCORE_RVA) |
| 342 | * addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase; |
| 343 | |
| 344 | else if (howto->pc_relative) |
| 345 | { |
| 346 | * addendp = sec->vma - 2; /* XXX guess - is this right ? */ |
| 347 | |
| 348 | /* If the symbol is defined, then the generic code is going to |
| 349 | add back the symbol value in order to cancel out an |
| 350 | adjustment it made to the addend. However, we set the addend |
| 351 | to 0 at the start of this function. We need to adjust here, |
| 352 | to avoid the adjustment the generic code will make. FIXME: |
| 353 | This is getting a bit hackish. */ |
| 354 | if (sym != NULL && sym->n_scnum != 0) |
| 355 | * addendp -= sym->n_value; |
| 356 | } |
| 357 | else |
| 358 | * addendp = 0; |
| 359 | |
| 360 | return howto; |
| 361 | } |
| 362 | |
| 363 | /* Return TRUE if this relocation should appear in the output .reloc section. |
| 364 | This function is referenced in pe_mkobject in peicode.h. */ |
| 365 | |
| 366 | static bfd_boolean |
| 367 | in_reloc_p (abfd, howto) |
| 368 | bfd * abfd ATTRIBUTE_UNUSED; |
| 369 | reloc_howto_type * howto; |
| 370 | { |
| 371 | return ! howto->pc_relative && howto->type != IMAGE_REL_MCORE_RVA; |
| 372 | } |
| 373 | \f |
| 374 | /* The reloc processing routine for the optimized COFF linker. */ |
| 375 | static bfd_boolean |
| 376 | coff_mcore_relocate_section (output_bfd, info, input_bfd, input_section, |
| 377 | contents, relocs, syms, sections) |
| 378 | bfd * output_bfd; |
| 379 | struct bfd_link_info * info; |
| 380 | bfd * input_bfd; |
| 381 | asection * input_section; |
| 382 | bfd_byte * contents; |
| 383 | struct internal_reloc * relocs; |
| 384 | struct internal_syment * syms; |
| 385 | asection ** sections; |
| 386 | { |
| 387 | struct internal_reloc * rel; |
| 388 | struct internal_reloc * relend; |
| 389 | bfd_boolean hihalf; |
| 390 | bfd_vma hihalf_val; |
| 391 | |
| 392 | /* If we are performing a relocatable link, we don't need to do a |
| 393 | thing. The caller will take care of adjusting the reloc |
| 394 | addresses and symbol indices. */ |
| 395 | if (info->relocatable) |
| 396 | return TRUE; |
| 397 | |
| 398 | /* Check if we have the same endianess */ |
| 399 | if ( input_bfd->xvec->byteorder != output_bfd->xvec->byteorder |
| 400 | && output_bfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN) |
| 401 | { |
| 402 | (*_bfd_error_handler) |
| 403 | (_("%B: compiled for a %s system and target is %s.\n"), |
| 404 | input_bfd, |
| 405 | bfd_big_endian (input_bfd) ? _("big endian") : _("little endian"), |
| 406 | bfd_big_endian (output_bfd) ? _("big endian") : _("little endian")); |
| 407 | |
| 408 | bfd_set_error (bfd_error_wrong_format); |
| 409 | return FALSE; |
| 410 | } |
| 411 | |
| 412 | hihalf = FALSE; |
| 413 | hihalf_val = 0; |
| 414 | |
| 415 | rel = relocs; |
| 416 | relend = rel + input_section->reloc_count; |
| 417 | |
| 418 | for (; rel < relend; rel++) |
| 419 | { |
| 420 | long symndx; |
| 421 | struct internal_syment * sym; |
| 422 | bfd_vma val; |
| 423 | bfd_vma addend; |
| 424 | bfd_reloc_status_type rstat; |
| 425 | bfd_byte * loc; |
| 426 | unsigned short r_type = rel->r_type; |
| 427 | reloc_howto_type * howto = NULL; |
| 428 | struct coff_link_hash_entry * h; |
| 429 | const char * my_name; |
| 430 | |
| 431 | symndx = rel->r_symndx; |
| 432 | loc = contents + rel->r_vaddr - input_section->vma; |
| 433 | |
| 434 | if (symndx == -1) |
| 435 | { |
| 436 | h = NULL; |
| 437 | sym = NULL; |
| 438 | } |
| 439 | else |
| 440 | { |
| 441 | h = obj_coff_sym_hashes (input_bfd)[symndx]; |
| 442 | sym = syms + symndx; |
| 443 | } |
| 444 | |
| 445 | addend = 0; |
| 446 | |
| 447 | /* Get the howto and initialise the addend. */ |
| 448 | howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h, |
| 449 | sym, & addend); |
| 450 | if (howto == NULL) |
| 451 | return FALSE; |
| 452 | |
| 453 | val = 0; |
| 454 | |
| 455 | if (h == NULL) |
| 456 | { |
| 457 | if (symndx == -1) |
| 458 | my_name = "*ABS*"; |
| 459 | else |
| 460 | { |
| 461 | asection * sec = sections[symndx]; |
| 462 | |
| 463 | val = (sym->n_value |
| 464 | + sec->output_section->vma |
| 465 | + sec->output_offset); |
| 466 | |
| 467 | if (sym == NULL) |
| 468 | my_name = "*unknown*"; |
| 469 | else if ( sym->_n._n_n._n_zeroes == 0 |
| 470 | && sym->_n._n_n._n_offset != 0) |
| 471 | my_name = obj_coff_strings (input_bfd) + sym->_n._n_n._n_offset; |
| 472 | else |
| 473 | { |
| 474 | static char buf [SYMNMLEN + 1]; |
| 475 | |
| 476 | strncpy (buf, sym->_n._n_name, SYMNMLEN); |
| 477 | buf[SYMNMLEN] = '\0'; |
| 478 | my_name = buf; |
| 479 | } |
| 480 | } |
| 481 | } |
| 482 | else |
| 483 | { |
| 484 | if ( h->root.type == bfd_link_hash_defined |
| 485 | || h->root.type == bfd_link_hash_defweak) |
| 486 | { |
| 487 | asection * sec = h->root.u.def.section; |
| 488 | |
| 489 | val = (h->root.u.def.value |
| 490 | + sec->output_section->vma |
| 491 | + sec->output_offset); |
| 492 | } |
| 493 | else |
| 494 | { |
| 495 | if (! ((*info->callbacks->undefined_symbol) |
| 496 | (info, h->root.root.string, input_bfd, input_section, |
| 497 | rel->r_vaddr - input_section->vma, TRUE))) |
| 498 | return FALSE; |
| 499 | } |
| 500 | |
| 501 | my_name = h->root.root.string; |
| 502 | } |
| 503 | |
| 504 | rstat = bfd_reloc_ok; |
| 505 | |
| 506 | /* Each case must do its own relocation, setting rstat appropriately. */ |
| 507 | switch (r_type) |
| 508 | { |
| 509 | default: |
| 510 | _bfd_error_handler (_("%B: unsupported relocation type 0x%02x"), |
| 511 | input_bfd, r_type); |
| 512 | bfd_set_error (bfd_error_bad_value); |
| 513 | return FALSE; |
| 514 | |
| 515 | case IMAGE_REL_MCORE_ABSOLUTE: |
| 516 | _bfd_error_handler |
| 517 | (_("Warning: unsupported reloc %s <file %B, section %A>\n" |
| 518 | "sym %ld (%s), r_vaddr %ld (%lx)"), |
| 519 | input_bfd, input_section, howto->name, |
| 520 | rel->r_symndx, my_name, (long) rel->r_vaddr, |
| 521 | (unsigned long) rel->r_vaddr); |
| 522 | break; |
| 523 | |
| 524 | case IMAGE_REL_MCORE_PCREL_IMM8BY4: |
| 525 | case IMAGE_REL_MCORE_PCREL_IMM11BY2: |
| 526 | case IMAGE_REL_MCORE_PCREL_IMM4BY2: |
| 527 | case IMAGE_REL_MCORE_PCREL_32: |
| 528 | case IMAGE_REL_MCORE_PCREL_JSR_IMM11BY2: |
| 529 | case IMAGE_REL_MCORE_ADDR32: |
| 530 | /* XXX fixme - shouldn't this be like the code for the RVA reloc ? */ |
| 531 | rstat = _bfd_relocate_contents (howto, input_bfd, val, loc); |
| 532 | break; |
| 533 | |
| 534 | case IMAGE_REL_MCORE_RVA: |
| 535 | rstat = _bfd_final_link_relocate |
| 536 | (howto, input_bfd, |
| 537 | input_section, contents, rel->r_vaddr - input_section->vma, |
| 538 | val, addend); |
| 539 | break; |
| 540 | } |
| 541 | |
| 542 | if (info->base_file) |
| 543 | { |
| 544 | /* Emit a reloc if the backend thinks it needs it. */ |
| 545 | if (sym && pe_data (output_bfd)->in_reloc_p (output_bfd, howto)) |
| 546 | mcore_emit_base_file_entry (info, output_bfd, input_section, rel->r_vaddr); |
| 547 | } |
| 548 | |
| 549 | switch (rstat) |
| 550 | { |
| 551 | default: |
| 552 | abort (); |
| 553 | |
| 554 | case bfd_reloc_ok: |
| 555 | break; |
| 556 | |
| 557 | case bfd_reloc_overflow: |
| 558 | if (! ((*info->callbacks->reloc_overflow) |
| 559 | (info, (h ? &h->root : NULL), my_name, howto->name, |
| 560 | (bfd_vma) 0, input_bfd, |
| 561 | input_section, rel->r_vaddr - input_section->vma))) |
| 562 | return FALSE; |
| 563 | } |
| 564 | } |
| 565 | |
| 566 | return TRUE; |
| 567 | } |
| 568 | \f |
| 569 | /* Tailor coffcode.h -- macro heaven. */ |
| 570 | |
| 571 | /* We use the special COFF backend linker, with our own special touch. */ |
| 572 | |
| 573 | #define coff_bfd_reloc_type_lookup mcore_coff_reloc_type_lookup |
| 574 | #define coff_relocate_section coff_mcore_relocate_section |
| 575 | #define coff_rtype_to_howto coff_mcore_rtype_to_howto |
| 576 | |
| 577 | #define SELECT_RELOC(internal, howto) {internal.r_type = howto->type;} |
| 578 | |
| 579 | /* Make sure that the 'r_offset' field is copied properly |
| 580 | so that identical binaries will compare the same. */ |
| 581 | #define SWAP_IN_RELOC_OFFSET H_GET_32 |
| 582 | #define SWAP_OUT_RELOC_OFFSET H_PUT_32 |
| 583 | |
| 584 | #define COFF_PAGE_SIZE 0x1000 |
| 585 | |
| 586 | #include "coffcode.h" |
| 587 | \f |
| 588 | /* Forward declaration to initialise alternative_target field. */ |
| 589 | extern const bfd_target TARGET_LITTLE_SYM; |
| 590 | |
| 591 | /* The transfer vectors that lead the outside world to all of the above. */ |
| 592 | CREATE_BIG_COFF_TARGET_VEC (TARGET_BIG_SYM, TARGET_BIG_NAME, D_PAGED, |
| 593 | (SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), |
| 594 | 0, & TARGET_LITTLE_SYM, COFF_SWAP_TABLE) |
| 595 | CREATE_LITTLE_COFF_TARGET_VEC (TARGET_LITTLE_SYM, TARGET_LITTLE_NAME, D_PAGED, |
| 596 | (SEC_CODE | SEC_DATA | SEC_DEBUGGING | SEC_READONLY | SEC_LINK_ONCE | SEC_LINK_DUPLICATES), |
| 597 | 0, & TARGET_BIG_SYM, COFF_SWAP_TABLE) |