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* configure.in: Enable libgcj for darwin.
[deliverable/binutils-gdb.git] / bfd / elf32-i860.c
CommitLineData
0e5136c6 1/* Intel i860 specific support for 32-bit ELF.
1049f94e 2 Copyright 1993, 1995, 1999, 2000, 2001, 2002, 2003
b491616a 3 Free Software Foundation, Inc.
9d751335 4
0e5136c6 5 Full i860 support contributed by Jason Eckhardt <jle@cygnus.com>.
252b5132
RH		 6
7This file is part of BFD, the Binary File Descriptor library.
8
9This program is free software; you can redistribute it and/or modify
10it under the terms of the GNU General Public License as published by
11the Free Software Foundation; either version 2 of the License, or
12(at your option) any later version.
13
14This program is distributed in the hope that it will be useful,
15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details.
18
19You should have received a copy of the GNU General Public License
20along with this program; if not, write to the Free Software
21Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22
23#include "bfd.h"
24#include "sysdep.h"
25#include "libbfd.h"
26#include "elf-bfd.h"
0e5136c6
JE		 27#include "elf/i860.h"
28
0e5136c6
JE		 29/* Prototypes. */
30static reloc_howto_type *lookup_howto
31 PARAMS ((unsigned int));
32
33static reloc_howto_type *elf32_i860_reloc_type_lookup
34 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
35
6609fa74 36static void elf32_i860_info_to_howto_rela
947216bf 37 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
0e5136c6 38
fdeafce7
JE		 39static bfd_reloc_status_type elf32_i860_relocate_splitn
40 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
41
fdeafce7 42static bfd_reloc_status_type elf32_i860_relocate_pc16
d670a150 43 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
fdeafce7 44
c1e8b710
JE		 45static bfd_reloc_status_type elf32_i860_relocate_pc26
46 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
47
fdeafce7
JE		 48static bfd_reloc_status_type elf32_i860_relocate_highadj
49 PARAMS ((bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma));
50
b34976b6 51static bfd_boolean elf32_i860_relocate_section
fdeafce7
JE		 52 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
53 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
54
55static bfd_reloc_status_type i860_final_link_relocate
56 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
57 Elf_Internal_Rela *, bfd_vma));
58
b34976b6 59static bfd_boolean elf32_i860_is_local_label_name
de24da47
JE		 60 PARAMS ((bfd *, const char *));
61
0e5136c6
JE		 62/* This howto table is preliminary. */
63static reloc_howto_type elf32_i860_howto_table [] =
64{
65 /* This relocation does nothing. */
66 HOWTO (R_860_NONE, /* type */
67 0, /* rightshift */
68 2, /* size (0 = byte, 1 = short, 2 = long) */
69 32, /* bitsize */
b34976b6 70 FALSE, /* pc_relative */
0e5136c6
JE		 71 0, /* bitpos */
72 complain_overflow_bitfield, /* complain_on_overflow */
73 bfd_elf_generic_reloc, /* special_function */
74 "R_860_NONE", /* name */
b34976b6 75 FALSE, /* partial_inplace */
0e5136c6
JE		 76 0, /* src_mask */
77 0, /* dst_mask */
b34976b6 78 FALSE), /* pcrel_offset */
0e5136c6
JE		 79
80 /* A 32-bit absolute relocation. */
81 HOWTO (R_860_32, /* type */
82 0, /* rightshift */
83 2, /* size (0 = byte, 1 = short, 2 = long) */
84 32, /* bitsize */
b34976b6 85 FALSE, /* pc_relative */
0e5136c6
JE		 86 0, /* bitpos */
87 complain_overflow_bitfield, /* complain_on_overflow */
88 bfd_elf_generic_reloc, /* special_function */
89 "R_860_32", /* name */
b34976b6 90 FALSE, /* partial_inplace */
0e5136c6
JE		 91 0xffffffff, /* src_mask */
92 0xffffffff, /* dst_mask */
b34976b6 93 FALSE), /* pcrel_offset */
0e5136c6
JE		 94
95 HOWTO (R_860_COPY, /* type */
96 0, /* rightshift */
97 2, /* size (0 = byte, 1 = short, 2 = long) */
98 32, /* bitsize */
b34976b6 99 FALSE, /* pc_relative */
0e5136c6
JE		 100 0, /* bitpos */
101 complain_overflow_bitfield, /* complain_on_overflow */
102 bfd_elf_generic_reloc, /* special_function */
103 "R_860_COPY", /* name */
b34976b6 104 TRUE, /* partial_inplace */
0e5136c6
JE		 105 0xffffffff, /* src_mask */
106 0xffffffff, /* dst_mask */
b34976b6 107 FALSE), /* pcrel_offset */
0e5136c6
JE		 108
109 HOWTO (R_860_GLOB_DAT, /* type */
110 0, /* rightshift */
111 2, /* size (0 = byte, 1 = short, 2 = long) */
112 32, /* bitsize */
b34976b6 113 FALSE, /* pc_relative */
0e5136c6
JE		 114 0, /* bitpos */
115 complain_overflow_bitfield, /* complain_on_overflow */
116 bfd_elf_generic_reloc, /* special_function */
117 "R_860_GLOB_DAT", /* name */
b34976b6 118 TRUE, /* partial_inplace */
0e5136c6
JE		 119 0xffffffff, /* src_mask */
120 0xffffffff, /* dst_mask */
b34976b6 121 FALSE), /* pcrel_offset */
0e5136c6
JE		 122
123 HOWTO (R_860_JUMP_SLOT, /* type */
124 0, /* rightshift */
125 2, /* size (0 = byte, 1 = short, 2 = long) */
126 32, /* bitsize */
b34976b6 127 FALSE, /* pc_relative */
0e5136c6
JE		 128 0, /* bitpos */
129 complain_overflow_bitfield, /* complain_on_overflow */
130 bfd_elf_generic_reloc, /* special_function */
131 "R_860_JUMP_SLOT", /* name */
b34976b6 132 TRUE, /* partial_inplace */
0e5136c6
JE		 133 0xffffffff, /* src_mask */
134 0xffffffff, /* dst_mask */
b34976b6 135 FALSE), /* pcrel_offset */
0e5136c6
JE		 136
137 HOWTO (R_860_RELATIVE, /* type */
138 0, /* rightshift */
139 2, /* size (0 = byte, 1 = short, 2 = long) */
140 32, /* bitsize */
b34976b6 141 FALSE, /* pc_relative */
0e5136c6
JE		 142 0, /* bitpos */
143 complain_overflow_bitfield, /* complain_on_overflow */
144 bfd_elf_generic_reloc, /* special_function */
145 "R_860_RELATIVE", /* name */
b34976b6 146 TRUE, /* partial_inplace */
0e5136c6
JE		 147 0xffffffff, /* src_mask */
148 0xffffffff, /* dst_mask */
b34976b6 149 FALSE), /* pcrel_offset */
0e5136c6
JE		 150
151 /* A 26-bit PC-relative relocation. */
152 HOWTO (R_860_PC26, /* type */
fdeafce7 153 2, /* rightshift */
0e5136c6
JE		 154 2, /* size (0 = byte, 1 = short, 2 = long) */
155 26, /* bitsize */
b34976b6 156 TRUE, /* pc_relative */
0e5136c6
JE		 157 0, /* bitpos */
158 complain_overflow_bitfield, /* complain_on_overflow */
159 bfd_elf_generic_reloc, /* special_function */
160 "R_860_PC26", /* name */
b34976b6 161 FALSE, /* partial_inplace */
0e5136c6
JE		 162 0x3ffffff, /* src_mask */
163 0x3ffffff, /* dst_mask */
b34976b6 164 TRUE), /* pcrel_offset */
0e5136c6
JE		 165
166 HOWTO (R_860_PLT26, /* type */
167 0, /* rightshift */
168 2, /* size (0 = byte, 1 = short, 2 = long) */
169 26, /* bitsize */
b34976b6 170 TRUE, /* pc_relative */
0e5136c6
JE		 171 0, /* bitpos */
172 complain_overflow_bitfield, /* complain_on_overflow */
173 bfd_elf_generic_reloc, /* special_function */
174 "R_860_PLT26", /* name */
b34976b6 175 TRUE, /* partial_inplace */
0e5136c6
JE		 176 0xffffffff, /* src_mask */
177 0xffffffff, /* dst_mask */
b34976b6 178 TRUE), /* pcrel_offset */
0e5136c6
JE		 179
180 /* A 16-bit PC-relative relocation. */
181 HOWTO (R_860_PC16, /* type */
fdeafce7 182 2, /* rightshift */
0e5136c6
JE		 183 2, /* size (0 = byte, 1 = short, 2 = long) */
184 16, /* bitsize */
b34976b6 185 TRUE, /* pc_relative */
0e5136c6
JE		 186 0, /* bitpos */
187 complain_overflow_bitfield, /* complain_on_overflow */
188 bfd_elf_generic_reloc, /* special_function */
189 "R_860_PC16", /* name */
b34976b6 190 FALSE, /* partial_inplace */
305d537e
JE		 191 0x1f07ff, /* src_mask */
192 0x1f07ff, /* dst_mask */
b34976b6 193 TRUE), /* pcrel_offset */
0e5136c6
JE		 194
195 HOWTO (R_860_LOW0, /* type */
196 0, /* rightshift */
197 2, /* size (0 = byte, 1 = short, 2 = long) */
198 16, /* bitsize */
b34976b6 199 FALSE, /* pc_relative */
0e5136c6
JE		 200 0, /* bitpos */
201 complain_overflow_dont, /* complain_on_overflow */
202 bfd_elf_generic_reloc, /* special_function */
203 "R_860_LOW0", /* name */
b34976b6 204 FALSE, /* partial_inplace */
0e5136c6
JE		 205 0xffff, /* src_mask */
206 0xffff, /* dst_mask */
b34976b6 207 FALSE), /* pcrel_offset */
0e5136c6
JE		 208
209 HOWTO (R_860_SPLIT0, /* type */
210 0, /* rightshift */
211 2, /* size (0 = byte, 1 = short, 2 = long) */
212 16, /* bitsize */
b34976b6 213 FALSE, /* pc_relative */
0e5136c6
JE		 214 0, /* bitpos */
215 complain_overflow_dont, /* complain_on_overflow */
216 bfd_elf_generic_reloc, /* special_function */
217 "R_860_SPLIT0", /* name */
b34976b6 218 FALSE, /* partial_inplace */
0e5136c6
JE		 219 0x1f07ff, /* src_mask */
220 0x1f07ff, /* dst_mask */
b34976b6 221 FALSE), /* pcrel_offset */
0e5136c6
JE		 222
223 HOWTO (R_860_LOW1, /* type */
224 0, /* rightshift */
225 2, /* size (0 = byte, 1 = short, 2 = long) */
226 16, /* bitsize */
b34976b6 227 FALSE, /* pc_relative */
0e5136c6
JE		 228 0, /* bitpos */
229 complain_overflow_dont, /* complain_on_overflow */
230 bfd_elf_generic_reloc, /* special_function */
231 "R_860_LOW1", /* name */
b34976b6 232 FALSE, /* partial_inplace */
0e5136c6
JE		 233 0xfffe, /* src_mask */
234 0xfffe, /* dst_mask */
b34976b6 235 FALSE), /* pcrel_offset */
0e5136c6
JE		 236
237 HOWTO (R_860_SPLIT1, /* type */
238 0, /* rightshift */
239 2, /* size (0 = byte, 1 = short, 2 = long) */
240 16, /* bitsize */
b34976b6 241 FALSE, /* pc_relative */
0e5136c6
JE		 242 0, /* bitpos */
243 complain_overflow_dont, /* complain_on_overflow */
244 bfd_elf_generic_reloc, /* special_function */
245 "R_860_SPLIT1", /* name */
b34976b6 246 FALSE, /* partial_inplace */
305d537e
JE		 247 0x1f07fe, /* src_mask */
248 0x1f07fe, /* dst_mask */
b34976b6 249 FALSE), /* pcrel_offset */
0e5136c6
JE		 250
251 HOWTO (R_860_LOW2, /* type */
252 0, /* rightshift */
253 2, /* size (0 = byte, 1 = short, 2 = long) */
254 16, /* bitsize */
b34976b6 255 FALSE, /* pc_relative */
0e5136c6
JE		 256 0, /* bitpos */
257 complain_overflow_dont, /* complain_on_overflow */
258 bfd_elf_generic_reloc, /* special_function */
259 "R_860_LOW2", /* name */
b34976b6 260 FALSE, /* partial_inplace */
0e5136c6
JE		 261 0xfffc, /* src_mask */
262 0xfffc, /* dst_mask */
b34976b6 263 FALSE), /* pcrel_offset */
0e5136c6
JE		 264
265 HOWTO (R_860_SPLIT2, /* type */
266 0, /* rightshift */
267 2, /* size (0 = byte, 1 = short, 2 = long) */
268 16, /* bitsize */
b34976b6 269 FALSE, /* pc_relative */
0e5136c6
JE		 270 0, /* bitpos */
271 complain_overflow_dont, /* complain_on_overflow */
272 bfd_elf_generic_reloc, /* special_function */
273 "R_860_SPLIT2", /* name */
b34976b6 274 FALSE, /* partial_inplace */
305d537e
JE		 275 0x1f07fc, /* src_mask */
276 0x1f07fc, /* dst_mask */
b34976b6 277 FALSE), /* pcrel_offset */
0e5136c6
JE		 278
279 HOWTO (R_860_LOW3, /* type */
280 0, /* rightshift */
281 2, /* size (0 = byte, 1 = short, 2 = long) */
282 16, /* bitsize */
b34976b6 283 FALSE, /* pc_relative */
0e5136c6
JE		 284 0, /* bitpos */
285 complain_overflow_dont, /* complain_on_overflow */
286 bfd_elf_generic_reloc, /* special_function */
287 "R_860_LOW3", /* name */
b34976b6 288 FALSE, /* partial_inplace */
0e5136c6
JE		 289 0xfff8, /* src_mask */
290 0xfff8, /* dst_mask */
b34976b6 291 FALSE), /* pcrel_offset */
0e5136c6
JE		 292
293 HOWTO (R_860_LOGOT0, /* type */
294 0, /* rightshift */
295 2, /* size (0 = byte, 1 = short, 2 = long) */
296 16, /* bitsize */
b34976b6 297 FALSE, /* pc_relative */
0e5136c6
JE		 298 0, /* bitpos */
299 complain_overflow_dont, /* complain_on_overflow */
300 bfd_elf_generic_reloc, /* special_function */
301 "R_860_LOGOT0", /* name */
b34976b6 302 FALSE, /* partial_inplace */
0e5136c6
JE		 303 0, /* src_mask */
304 0xffff, /* dst_mask */
b34976b6 305 TRUE), /* pcrel_offset */
0e5136c6
JE		 306
307 HOWTO (R_860_SPGOT0, /* type */
308 0, /* rightshift */
309 2, /* size (0 = byte, 1 = short, 2 = long) */
310 16, /* bitsize */
b34976b6 311 FALSE, /* pc_relative */
0e5136c6
JE		 312 0, /* bitpos */
313 complain_overflow_dont, /* complain_on_overflow */
314 bfd_elf_generic_reloc, /* special_function */
315 "R_860_SPGOT0", /* name */
b34976b6 316 FALSE, /* partial_inplace */
0e5136c6
JE		 317 0, /* src_mask */
318 0xffff, /* dst_mask */
b34976b6 319 TRUE), /* pcrel_offset */
0e5136c6
JE		 320
321 HOWTO (R_860_LOGOT1, /* type */
322 0, /* rightshift */
323 2, /* size (0 = byte, 1 = short, 2 = long) */
324 16, /* bitsize */
b34976b6 325 FALSE, /* pc_relative */
0e5136c6
JE		 326 0, /* bitpos */
327 complain_overflow_dont, /* complain_on_overflow */
328 bfd_elf_generic_reloc, /* special_function */
329 "R_860_LOGOT1", /* name */
b34976b6 330 FALSE, /* partial_inplace */
0e5136c6
JE		 331 0, /* src_mask */
332 0xffff, /* dst_mask */
b34976b6 333 TRUE), /* pcrel_offset */
0e5136c6
JE		 334
335 HOWTO (R_860_SPGOT1, /* type */
336 0, /* rightshift */
337 2, /* size (0 = byte, 1 = short, 2 = long) */
338 16, /* bitsize */
b34976b6 339 FALSE, /* pc_relative */
0e5136c6
JE		 340 0, /* bitpos */
341 complain_overflow_dont, /* complain_on_overflow */
342 bfd_elf_generic_reloc, /* special_function */
343 "R_860_SPGOT1", /* name */
b34976b6 344 FALSE, /* partial_inplace */
0e5136c6
JE		 345 0, /* src_mask */
346 0xffff, /* dst_mask */
b34976b6 347 TRUE), /* pcrel_offset */
0e5136c6
JE		 348
349 HOWTO (R_860_LOGOTOFF0, /* type */
350 0, /* rightshift */
351 2, /* size (0 = byte, 1 = short, 2 = long) */
352 32, /* bitsize */
b34976b6 353 FALSE, /* pc_relative */
0e5136c6
JE		 354 0, /* bitpos */
355 complain_overflow_dont, /* complain_on_overflow */
356 bfd_elf_generic_reloc, /* special_function */
357 "R_860_LOGOTOFF0", /* name */
b34976b6 358 TRUE, /* partial_inplace */
0e5136c6
JE		 359 0xffffffff, /* src_mask */
360 0xffffffff, /* dst_mask */
b34976b6 361 FALSE), /* pcrel_offset */
0e5136c6
JE		 362
363 HOWTO (R_860_SPGOTOFF0, /* type */
364 0, /* rightshift */
365 2, /* size (0 = byte, 1 = short, 2 = long) */
366 32, /* bitsize */
b34976b6 367 FALSE, /* pc_relative */
0e5136c6
JE		 368 0, /* bitpos */
369 complain_overflow_dont, /* complain_on_overflow */
370 bfd_elf_generic_reloc, /* special_function */
371 "R_860_SPGOTOFF0", /* name */
b34976b6 372 TRUE, /* partial_inplace */
0e5136c6
JE		 373 0xffffffff, /* src_mask */
374 0xffffffff, /* dst_mask */
b34976b6 375 FALSE), /* pcrel_offset */
0e5136c6
JE		 376
377 HOWTO (R_860_LOGOTOFF1, /* type */
378 0, /* rightshift */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
380 32, /* bitsize */
b34976b6 381 FALSE, /* pc_relative */
0e5136c6
JE		 382 0, /* bitpos */
383 complain_overflow_dont, /* complain_on_overflow */
384 bfd_elf_generic_reloc, /* special_function */
385 "R_860_LOGOTOFF1", /* name */
b34976b6 386 TRUE, /* partial_inplace */
0e5136c6
JE		 387 0xffffffff, /* src_mask */
388 0xffffffff, /* dst_mask */
b34976b6 389 FALSE), /* pcrel_offset */
0e5136c6
JE		 390
391 HOWTO (R_860_SPGOTOFF1, /* type */
392 0, /* rightshift */
393 2, /* size (0 = byte, 1 = short, 2 = long) */
394 32, /* bitsize */
b34976b6 395 FALSE, /* pc_relative */
0e5136c6
JE		 396 0, /* bitpos */
397 complain_overflow_dont, /* complain_on_overflow */
398 bfd_elf_generic_reloc, /* special_function */
399 "R_860_SPGOTOFF1", /* name */
b34976b6 400 TRUE, /* partial_inplace */
0e5136c6
JE		 401 0xffffffff, /* src_mask */
402 0xffffffff, /* dst_mask */
b34976b6 403 FALSE), /* pcrel_offset */
0e5136c6
JE		 404
405 HOWTO (R_860_LOGOTOFF2, /* type */
406 0, /* rightshift */
407 2, /* size (0 = byte, 1 = short, 2 = long) */
408 32, /* bitsize */
b34976b6 409 FALSE, /* pc_relative */
0e5136c6
JE		 410 0, /* bitpos */
411 complain_overflow_dont, /* complain_on_overflow */
412 bfd_elf_generic_reloc, /* special_function */
413 "R_860_LOGOTOFF2", /* name */
b34976b6 414 TRUE, /* partial_inplace */
0e5136c6
JE		 415 0xffffffff, /* src_mask */
416 0xffffffff, /* dst_mask */
b34976b6 417 FALSE), /* pcrel_offset */
0e5136c6
JE		 418
419 HOWTO (R_860_LOGOTOFF3, /* type */
420 0, /* rightshift */
421 2, /* size (0 = byte, 1 = short, 2 = long) */
422 32, /* bitsize */
b34976b6 423 FALSE, /* pc_relative */
0e5136c6
JE		 424 0, /* bitpos */
425 complain_overflow_dont, /* complain_on_overflow */
426 bfd_elf_generic_reloc, /* special_function */
427 "R_860_LOGOTOFF3", /* name */
b34976b6 428 TRUE, /* partial_inplace */
0e5136c6
JE		 429 0xffffffff, /* src_mask */
430 0xffffffff, /* dst_mask */
b34976b6 431 FALSE), /* pcrel_offset */
0e5136c6
JE		 432
433 HOWTO (R_860_LOPC, /* type */
434 0, /* rightshift */
435 2, /* size (0 = byte, 1 = short, 2 = long) */
436 16, /* bitsize */
b34976b6 437 TRUE, /* pc_relative */
0e5136c6
JE		 438 0, /* bitpos */
439 complain_overflow_bitfield, /* complain_on_overflow */
440 bfd_elf_generic_reloc, /* special_function */
441 "R_860_LOPC", /* name */
b34976b6 442 FALSE, /* partial_inplace */
0e5136c6
JE		 443 0xffff, /* src_mask */
444 0xffff, /* dst_mask */
b34976b6 445 TRUE), /* pcrel_offset */
0e5136c6
JE		 446
447 HOWTO (R_860_HIGHADJ, /* type */
448 0, /* rightshift */
449 2, /* size (0 = byte, 1 = short, 2 = long) */
450 16, /* bitsize */
b34976b6 451 FALSE, /* pc_relative */
0e5136c6
JE		 452 0, /* bitpos */
453 complain_overflow_dont, /* complain_on_overflow */
454 bfd_elf_generic_reloc, /* special_function */
455 "R_860_HIGHADJ", /* name */
b34976b6 456 FALSE, /* partial_inplace */
0e5136c6
JE		 457 0xffff, /* src_mask */
458 0xffff, /* dst_mask */
b34976b6 459 FALSE), /* pcrel_offset */
0e5136c6
JE		 460
461 HOWTO (R_860_HAGOT, /* type */
462 0, /* rightshift */
463 2, /* size (0 = byte, 1 = short, 2 = long) */
464 16, /* bitsize */
b34976b6 465 FALSE, /* pc_relative */
0e5136c6
JE		 466 0, /* bitpos */
467 complain_overflow_dont, /* complain_on_overflow */
468 bfd_elf_generic_reloc, /* special_function */
469 "R_860_HAGOT", /* name */
b34976b6 470 FALSE, /* partial_inplace */
0e5136c6
JE		 471 0, /* src_mask */
472 0xffff, /* dst_mask */
b34976b6 473 TRUE), /* pcrel_offset */
0e5136c6
JE		 474
475 HOWTO (R_860_HAGOTOFF, /* type */
476 0, /* rightshift */
477 2, /* size (0 = byte, 1 = short, 2 = long) */
478 32, /* bitsize */
b34976b6 479 FALSE, /* pc_relative */
0e5136c6
JE		 480 0, /* bitpos */
481 complain_overflow_dont, /* complain_on_overflow */
482 bfd_elf_generic_reloc, /* special_function */
483 "R_860_HAGOTOFF", /* name */
b34976b6 484 TRUE, /* partial_inplace */
0e5136c6
JE		 485 0xffffffff, /* src_mask */
486 0xffffffff, /* dst_mask */
b34976b6 487 FALSE), /* pcrel_offset */
0e5136c6
JE		 488
489 HOWTO (R_860_HAPC, /* type */
490 0, /* rightshift */
491 2, /* size (0 = byte, 1 = short, 2 = long) */
492 16, /* bitsize */
b34976b6 493 TRUE, /* pc_relative */
0e5136c6
JE		 494 0, /* bitpos */
495 complain_overflow_bitfield, /* complain_on_overflow */
496 bfd_elf_generic_reloc, /* special_function */
497 "R_860_HAPC", /* name */
b34976b6 498 FALSE, /* partial_inplace */
0e5136c6
JE		 499 0xffff, /* src_mask */
500 0xffff, /* dst_mask */
b34976b6 501 TRUE), /* pcrel_offset */
0e5136c6
JE		 502
503 HOWTO (R_860_HIGH, /* type */
fdeafce7 504 16, /* rightshift */
0e5136c6
JE		 505 2, /* size (0 = byte, 1 = short, 2 = long) */
506 16, /* bitsize */
b34976b6 507 FALSE, /* pc_relative */
0e5136c6
JE		 508 0, /* bitpos */
509 complain_overflow_dont, /* complain_on_overflow */
510 bfd_elf_generic_reloc, /* special_function */
511 "R_860_HIGH", /* name */
b34976b6 512 FALSE, /* partial_inplace */
0e5136c6
JE		 513 0xffff, /* src_mask */
514 0xffff, /* dst_mask */
b34976b6 515 FALSE), /* pcrel_offset */
0e5136c6
JE		 516
517 HOWTO (R_860_HIGOT, /* type */
518 0, /* rightshift */
519 2, /* size (0 = byte, 1 = short, 2 = long) */
520 16, /* bitsize */
b34976b6 521 FALSE, /* pc_relative */
0e5136c6
JE		 522 0, /* bitpos */
523 complain_overflow_dont, /* complain_on_overflow */
524 bfd_elf_generic_reloc, /* special_function */
525 "R_860_HIGOT", /* name */
b34976b6 526 FALSE, /* partial_inplace */
0e5136c6
JE		 527 0, /* src_mask */
528 0xffff, /* dst_mask */
b34976b6 529 TRUE), /* pcrel_offset */
0e5136c6
JE		 530
531 HOWTO (R_860_HIGOTOFF, /* type */
532 0, /* rightshift */
533 2, /* size (0 = byte, 1 = short, 2 = long) */
534 32, /* bitsize */
b34976b6 535 FALSE, /* pc_relative */
0e5136c6
JE		 536 0, /* bitpos */
537 complain_overflow_dont, /* complain_on_overflow */
538 bfd_elf_generic_reloc, /* special_function */
539 "R_860_HIGOTOFF", /* name */
b34976b6 540 TRUE, /* partial_inplace */
0e5136c6
JE		 541 0xffffffff, /* src_mask */
542 0xffffffff, /* dst_mask */
b34976b6 543 FALSE), /* pcrel_offset */
0e5136c6 544};
0e5136c6
JE		 545\f
546static unsigned char elf_code_to_howto_index[R_860_max + 1];
547
548static reloc_howto_type *
549lookup_howto (rtype)
550 unsigned int rtype;
551{
552 static int initialized = 0;
553 int i;
554 int howto_tbl_size = (int) (sizeof (elf32_i860_howto_table)
555 / sizeof (elf32_i860_howto_table[0]));
556
557 if (! initialized)
558 {
559 initialized = 1;
560 memset (elf_code_to_howto_index, 0xff,
561 sizeof (elf_code_to_howto_index));
562 for (i = 0; i < howto_tbl_size; i++)
563 elf_code_to_howto_index[elf32_i860_howto_table[i].type] = i;
564 }
565
566 BFD_ASSERT (rtype <= R_860_max);
567 i = elf_code_to_howto_index[rtype];
568 if (i >= howto_tbl_size)
569 return 0;
570 return elf32_i860_howto_table + i;
571}
572
0e5136c6
JE		 573/* Given a BFD reloc, return the matching HOWTO structure. */
574static reloc_howto_type *
575elf32_i860_reloc_type_lookup (abfd, code)
576 bfd * abfd ATTRIBUTE_UNUSED;
577 bfd_reloc_code_real_type code;
578{
579 unsigned int rtype;
580
581 switch (code)
582 {
583 case BFD_RELOC_NONE:
584 rtype = R_860_NONE;
585 break;
586 case BFD_RELOC_32:
587 rtype = R_860_32;
588 break;
589 case BFD_RELOC_860_COPY:
590 rtype = R_860_COPY;
591 break;
592 case BFD_RELOC_860_GLOB_DAT:
6609fa74 593 rtype = R_860_GLOB_DAT;
0e5136c6
JE		 594 break;
595 case BFD_RELOC_860_JUMP_SLOT:
596 rtype = R_860_JUMP_SLOT;
597 break;
598 case BFD_RELOC_860_RELATIVE:
599 rtype = R_860_RELATIVE;
600 break;
601 case BFD_RELOC_860_PC26:
602 rtype = R_860_PC26;
603 break;
604 case BFD_RELOC_860_PLT26:
605 rtype = R_860_PLT26;
606 break;
607 case BFD_RELOC_860_PC16:
608 rtype = R_860_PC16;
609 break;
610 case BFD_RELOC_860_LOW0:
611 rtype = R_860_LOW0;
612 break;
613 case BFD_RELOC_860_SPLIT0:
614 rtype = R_860_SPLIT0;
615 break;
616 case BFD_RELOC_860_LOW1:
617 rtype = R_860_LOW1;
618 break;
619 case BFD_RELOC_860_SPLIT1:
620 rtype = R_860_SPLIT1;
621 break;
622 case BFD_RELOC_860_LOW2:
623 rtype = R_860_LOW2;
624 break;
625 case BFD_RELOC_860_SPLIT2:
626 rtype = R_860_SPLIT2;
627 break;
628 case BFD_RELOC_860_LOW3:
629 rtype = R_860_LOW3;
630 break;
631 case BFD_RELOC_860_LOGOT0:
632 rtype = R_860_LOGOT0;
633 break;
634 case BFD_RELOC_860_SPGOT0:
635 rtype = R_860_SPGOT0;
636 break;
637 case BFD_RELOC_860_LOGOT1:
638 rtype = R_860_LOGOT1;
639 break;
640 case BFD_RELOC_860_SPGOT1:
641 rtype = R_860_SPGOT1;
642 break;
643 case BFD_RELOC_860_LOGOTOFF0:
644 rtype = R_860_LOGOTOFF0;
645 break;
646 case BFD_RELOC_860_SPGOTOFF0:
647 rtype = R_860_SPGOTOFF0;
648 break;
649 case BFD_RELOC_860_LOGOTOFF1:
650 rtype = R_860_LOGOTOFF1;
651 break;
652 case BFD_RELOC_860_SPGOTOFF1:
653 rtype = R_860_SPGOTOFF1;
654 break;
655 case BFD_RELOC_860_LOGOTOFF2:
656 rtype = R_860_LOGOTOFF2;
657 break;
658 case BFD_RELOC_860_LOGOTOFF3:
659 rtype = R_860_LOGOTOFF3;
660 break;
661 case BFD_RELOC_860_LOPC:
662 rtype = R_860_LOPC;
663 break;
664 case BFD_RELOC_860_HIGHADJ:
665 rtype = R_860_HIGHADJ;
666 break;
667 case BFD_RELOC_860_HAGOT:
668 rtype = R_860_HAGOT;
669 break;
670 case BFD_RELOC_860_HAGOTOFF:
671 rtype = R_860_HAGOTOFF;
672 break;
673 case BFD_RELOC_860_HAPC:
674 rtype = R_860_HAPC;
675 break;
676 case BFD_RELOC_860_HIGH:
677 rtype = R_860_HIGH;
678 break;
679 case BFD_RELOC_860_HIGOT:
680 rtype = R_860_HIGOT;
681 break;
682 case BFD_RELOC_860_HIGOTOFF:
683 rtype = R_860_HIGOTOFF;
684 break;
685 default:
686 rtype = 0;
687 break;
688 }
689 return lookup_howto (rtype);
690}
691
0e5136c6
JE		 692/* Given a ELF reloc, return the matching HOWTO structure. */
693static void
694elf32_i860_info_to_howto_rela (abfd, bfd_reloc, elf_reloc)
695 bfd *abfd ATTRIBUTE_UNUSED;
696 arelent *bfd_reloc;
947216bf 697 Elf_Internal_Rela *elf_reloc;
0e5136c6 698{
dc810e39
AM		 699 bfd_reloc->howto
700 = lookup_howto ((unsigned) ELF32_R_TYPE (elf_reloc->r_info));
0e5136c6 701}
fdeafce7
JE		 702\f
703/* Specialized relocation handler for R_860_SPLITn. These relocations
704 involves a 16-bit field that is split into two contiguous parts. */
705static bfd_reloc_status_type
706elf32_i860_relocate_splitn (input_bfd, rello, contents, value)
707 bfd *input_bfd;
708 Elf_Internal_Rela *rello;
709 bfd_byte *contents;
710 bfd_vma value;
711{
ded0649c 712 bfd_vma insn;
fdeafce7 713 reloc_howto_type *howto;
dc810e39 714 howto = lookup_howto ((unsigned) ELF32_R_TYPE (rello->r_info));
fdeafce7
JE		 715 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
716
fdeafce7 717 /* Relocate. */
ded0649c 718 value += rello->r_addend;
fdeafce7 719
ded0649c 720 /* Separate the fields and insert. */
a48c6a54 721 value = (((value & 0xf800) << 5) | (value & 0x7ff)) & howto->dst_mask;
fdeafce7
JE		 722 insn = (insn & ~howto->dst_mask) | value;
723
724 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
725 return bfd_reloc_ok;
726}
727
fdeafce7
JE		 728/* Specialized relocation handler for R_860_PC16. This relocation
729 involves a 16-bit, PC-relative field that is split into two contiguous
730 parts. */
731static bfd_reloc_status_type
d670a150 732elf32_i860_relocate_pc16 (input_bfd, input_section, rello, contents, value)
fdeafce7 733 bfd *input_bfd;
d670a150 734 asection *input_section;
fdeafce7
JE		 735 Elf_Internal_Rela *rello;
736 bfd_byte *contents;
737 bfd_vma value;
738{
ded0649c 739 bfd_vma insn;
d670a150 740 reloc_howto_type *howto;
dc810e39 741 howto = lookup_howto ((unsigned) ELF32_R_TYPE (rello->r_info));
d670a150
JE		 742 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
743
744 /* Adjust for PC-relative relocation. */
745 value -= (input_section->output_section->vma
746 + input_section->output_offset);
747 value -= rello->r_offset;
748
d670a150 749 /* Relocate. */
ded0649c 750 value += rello->r_addend;
d670a150 751
ded0649c 752 /* Separate the fields and insert. */
a48c6a54 753 value = (((value & 0xf800) << 5) | (value & 0x7ff)) & howto->dst_mask;
d670a150
JE		 754 insn = (insn & ~howto->dst_mask) | value;
755
756 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
757 return bfd_reloc_ok;
758
fdeafce7 759}
fdeafce7 760
c1e8b710
JE		 761/* Specialized relocation handler for R_860_PC26. This relocation
762 involves a 26-bit, PC-relative field which must be adjusted by 4. */
763static bfd_reloc_status_type
764elf32_i860_relocate_pc26 (input_bfd, input_section, rello, contents, value)
765 bfd *input_bfd;
766 asection *input_section;
767 Elf_Internal_Rela *rello;
768 bfd_byte *contents;
769 bfd_vma value;
770{
771 bfd_vma insn;
772 reloc_howto_type *howto;
dc810e39 773 howto = lookup_howto ((unsigned) ELF32_R_TYPE (rello->r_info));
c1e8b710
JE		 774 insn = bfd_get_32 (input_bfd, contents + rello->r_offset);
775
776 /* Adjust for PC-relative relocation. */
777 value -= (input_section->output_section->vma
778 + input_section->output_offset);
779 value -= rello->r_offset;
780
781 /* Relocate. */
782 value += rello->r_addend;
783
784 /* Adjust value by 4 and insert the field. */
6609fa74 785 value = ((value - 4) >> howto->rightshift) & howto->dst_mask;
c1e8b710
JE		 786 insn = (insn & ~howto->dst_mask) | value;
787
788 bfd_put_32 (input_bfd, insn, contents + rello->r_offset);
789 return bfd_reloc_ok;
790
791}
792
fdeafce7
JE		 793/* Specialized relocation handler for R_860_HIGHADJ. */
794static bfd_reloc_status_type
795elf32_i860_relocate_highadj (input_bfd, rel, contents, value)
796 bfd *input_bfd;
797 Elf_Internal_Rela *rel;
798 bfd_byte *contents;
799 bfd_vma value;
800{
801 bfd_vma insn;
802
803 insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
804
fdeafce7 805 value += rel->r_addend;
b645cb17 806 value += 0x8000;
fdeafce7 807 value = ((value >> 16) & 0xffff);
fdeafce7
JE		 808
809 insn = (insn & 0xffff0000) | value;
810
811 bfd_put_32 (input_bfd, insn, contents + rel->r_offset);
812 return bfd_reloc_ok;
813}
814
fdeafce7
JE		 815/* Perform a single relocation. By default we use the standard BFD
816 routines. However, we handle some specially. */
817static bfd_reloc_status_type
818i860_final_link_relocate (howto, input_bfd, input_section, contents, rel, relocation)
819 reloc_howto_type * howto;
820 bfd * input_bfd;
821 asection * input_section;
822 bfd_byte * contents;
823 Elf_Internal_Rela * rel;
824 bfd_vma relocation;
825{
826 return _bfd_final_link_relocate (howto, input_bfd, input_section,
827 contents, rel->r_offset, relocation,
828 rel->r_addend);
829}
830
fdeafce7 831/* Relocate an i860 ELF section.
252b5132 832
fdeafce7 833 This is boiler-plate code copied from fr30.
fdeafce7
JE		 834
835 The RELOCATE_SECTION function is called by the new ELF backend linker
836 to handle the relocations for a section.
837
838 The relocs are always passed as Rela structures; if the section
839 actually uses Rel structures, the r_addend field will always be
840 zero.
841
842 This function is responsible for adjusting the section contents as
1049f94e 843 necessary, and (if using Rela relocs and generating a relocatable
fdeafce7
JE		 844 output file) adjusting the reloc addend as necessary.
845
846 This function does not have to worry about setting the reloc
847 address or the reloc symbol index.
848
849 LOCAL_SYMS is a pointer to the swapped in local symbols.
850
851 LOCAL_SECTIONS is an array giving the section in the input file
852 corresponding to the st_shndx field of each local symbol.
853
854 The global hash table entry for the global symbols can be found
855 via elf_sym_hashes (input_bfd).
856
1049f94e 857 When generating relocatable output, this function must handle
fdeafce7
JE		 858 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
859 going to be the section symbol corresponding to the output
860 section, which means that the addend must be adjusted
861 accordingly. */
b34976b6 862static bfd_boolean
fdeafce7
JE		 863elf32_i860_relocate_section (output_bfd, info, input_bfd, input_section,
864 contents, relocs, local_syms, local_sections)
b34976b6
AM		 865 bfd *output_bfd ATTRIBUTE_UNUSED;
866 struct bfd_link_info *info;
867 bfd *input_bfd;
868 asection *input_section;
869 bfd_byte *contents;
870 Elf_Internal_Rela *relocs;
871 Elf_Internal_Sym *local_syms;
872 asection **local_sections;
fdeafce7 873{
b34976b6
AM		 874 Elf_Internal_Shdr *symtab_hdr;
875 struct elf_link_hash_entry **sym_hashes;
876 Elf_Internal_Rela *rel;
877 Elf_Internal_Rela *relend;
fdeafce7 878
1049f94e 879 if (info->relocatable)
b34976b6 880 return TRUE;
b491616a 881
fdeafce7
JE		 882 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
883 sym_hashes = elf_sym_hashes (input_bfd);
884 relend = relocs + input_section->reloc_count;
885
886 for (rel = relocs; rel < relend; rel ++)
887 {
888 reloc_howto_type * howto;
889 unsigned long r_symndx;
890 Elf_Internal_Sym * sym;
891 asection * sec;
892 struct elf_link_hash_entry * h;
893 bfd_vma relocation;
894 bfd_reloc_status_type r;
895 const char * name = NULL;
896 int r_type;
6609fa74 897
fdeafce7 898 r_type = ELF32_R_TYPE (rel->r_info);
6609fa74 899
fdeafce7
JE		 900#if 0
901 if ( r_type == R_860_GNU_VTINHERIT
902 || r_type == R_860_GNU_VTENTRY)
903 continue;
904#endif
6609fa74 905
fdeafce7
JE		 906 r_symndx = ELF32_R_SYM (rel->r_info);
907
dc810e39
AM		 908 howto = lookup_howto ((unsigned) ELF32_R_TYPE (rel->r_info));
909 h = NULL;
910 sym = NULL;
911 sec = NULL;
6609fa74 912
fdeafce7
JE		 913 if (r_symndx < symtab_hdr->sh_info)
914 {
915 sym = local_syms + r_symndx;
916 sec = local_sections [r_symndx];
f8df10f4 917 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
6609fa74 918
fdeafce7
JE		 919 name = bfd_elf_string_from_elf_section
920 (input_bfd, symtab_hdr->sh_link, sym->st_name);
921 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
922 }
923 else
924 {
925 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
6609fa74 926
fdeafce7
JE		 927 while (h->root.type == bfd_link_hash_indirect
928 || h->root.type == bfd_link_hash_warning)
929 h = (struct elf_link_hash_entry *) h->root.u.i.link;
930
931 name = h->root.root.string;
6609fa74 932
fdeafce7
JE		 933 if (h->root.type == bfd_link_hash_defined
934 || h->root.type == bfd_link_hash_defweak)
935 {
936 sec = h->root.u.def.section;
937 relocation = (h->root.u.def.value
938 + sec->output_section->vma
939 + sec->output_offset);
940 }
941 else if (h->root.type == bfd_link_hash_undefweak)
942 {
943 relocation = 0;
944 }
945 else
946 {
947 if (! ((*info->callbacks->undefined_symbol)
948 (info, h->root.root.string, input_bfd,
b34976b6
AM		 949 input_section, rel->r_offset, TRUE)))
950 return FALSE;
fdeafce7
JE		 951 relocation = 0;
952 }
953 }
6609fa74 954
fdeafce7
JE		 955 switch (r_type)
956 {
957 default:
958 r = i860_final_link_relocate (howto, input_bfd, input_section,
959 contents, rel, relocation);
960 break;
961
962 case R_860_HIGHADJ:
963 r = elf32_i860_relocate_highadj (input_bfd, rel, contents,
964 relocation);
965 break;
966
fdeafce7 967 case R_860_PC16:
d670a150
JE		 968 r = elf32_i860_relocate_pc16 (input_bfd, input_section, rel,
969 contents, relocation);
fdeafce7 970 break;
fdeafce7 971
c1e8b710
JE		 972 case R_860_PC26:
973 r = elf32_i860_relocate_pc26 (input_bfd, input_section, rel,
974 contents, relocation);
975 break;
976
fdeafce7
JE		 977 case R_860_SPLIT0:
978 case R_860_SPLIT1:
979 case R_860_SPLIT2:
980 r = elf32_i860_relocate_splitn (input_bfd, rel, contents,
981 relocation);
982 break;
983
984 /* We do not yet handle GOT/PLT/Dynamic relocations. */
985 case R_860_COPY:
986 case R_860_GLOB_DAT:
987 case R_860_JUMP_SLOT:
988 case R_860_RELATIVE:
989 case R_860_PLT26:
990 case R_860_LOGOT0:
991 case R_860_SPGOT0:
992 case R_860_LOGOT1:
993 case R_860_SPGOT1:
994 case R_860_LOGOTOFF0:
995 case R_860_SPGOTOFF0:
996 case R_860_LOGOTOFF1:
997 case R_860_SPGOTOFF1:
998 case R_860_LOGOTOFF2:
999 case R_860_LOGOTOFF3:
1000 case R_860_LOPC:
1001 case R_860_HAGOT:
1002 case R_860_HAGOTOFF:
1003 case R_860_HAPC:
1004 case R_860_HIGOT:
1005 case R_860_HIGOTOFF:
1006 r = bfd_reloc_notsupported;
1007 break;
6609fa74 1008 }
fdeafce7
JE		 1009
1010 if (r != bfd_reloc_ok)
1011 {
1012 const char * msg = (const char *) NULL;
1013
1014 switch (r)
1015 {
1016 case bfd_reloc_overflow:
1017 r = info->callbacks->reloc_overflow
1018 (info, name, howto->name, (bfd_vma) 0,
1019 input_bfd, input_section, rel->r_offset);
1020 break;
6609fa74 1021
fdeafce7
JE		 1022 case bfd_reloc_undefined:
1023 r = info->callbacks->undefined_symbol
b34976b6 1024 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
fdeafce7 1025 break;
6609fa74 1026
fdeafce7
JE		 1027 case bfd_reloc_outofrange:
1028 msg = _("internal error: out of range error");
1029 break;
1030
1031 case bfd_reloc_notsupported:
1032 msg = _("internal error: unsupported relocation error");
1033 break;
1034
1035 case bfd_reloc_dangerous:
1036 msg = _("internal error: dangerous relocation");
1037 break;
1038
1039 default:
1040 msg = _("internal error: unknown error");
1041 break;
1042 }
1043
1044 if (msg)
1045 r = info->callbacks->warning
1046 (info, msg, name, input_bfd, input_section, rel->r_offset);
1047
1048 if (! r)
b34976b6 1049 return FALSE;
fdeafce7
JE		 1050 }
1051 }
1052
b34976b6 1053 return TRUE;
fdeafce7
JE		 1054}
1055
de24da47
JE		 1056/* Return whether a symbol name implies a local label. SVR4/860 compilers
1057 generate labels of the form ".ep.function_name" to denote the end of a
1058 function prolog. These should be local.
1059 ??? Do any other SVR4 compilers have this convention? If so, this should
1060 be added to the generic routine. */
b34976b6 1061static bfd_boolean
de24da47
JE		 1062elf32_i860_is_local_label_name (abfd, name)
1063 bfd *abfd;
1064 const char *name;
1065{
1066 if (name[0] == '.' && name[1] == 'e' && name[2] == 'p' && name[3] == '.')
b34976b6 1067 return TRUE;
de24da47
JE		 1068
1069 return _bfd_elf_is_local_label_name (abfd, name);
1070}
fdeafce7 1071\f
9d751335
JE		 1072#define TARGET_BIG_SYM bfd_elf32_i860_vec
1073#define TARGET_BIG_NAME "elf32-i860"
1074#define TARGET_LITTLE_SYM bfd_elf32_i860_little_vec
1075#define TARGET_LITTLE_NAME "elf32-i860-little"
0e5136c6
JE		 1076#define ELF_ARCH bfd_arch_i860
1077#define ELF_MACHINE_CODE EM_860
1078#define ELF_MAXPAGESIZE 4096
1079
b491616a 1080#define elf_backend_rela_normal 1
fdeafce7 1081#define elf_info_to_howto_rel NULL
0e5136c6 1082#define elf_info_to_howto elf32_i860_info_to_howto_rela
fdeafce7 1083#define elf_backend_relocate_section elf32_i860_relocate_section
0e5136c6 1084#define bfd_elf32_bfd_reloc_type_lookup elf32_i860_reloc_type_lookup
de24da47 1085#define bfd_elf32_bfd_is_local_label_name elf32_i860_is_local_label_name
252b5132
RH		 1086
1087#include "elf32-target.h"
GDB Binutils - Deliverables
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