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* coff-arm.c (coff_arm_link_hash_table_create): Use bfd_zmalloc.
[deliverable/binutils-gdb.git] / bfd / elf32-xgate.c
CommitLineData
a8acc5fb
NC		 1/* Freescale XGATE-specific support for 32-bit ELF
2 Copyright 2010, 2011, 2012
3 Free Software Foundation, Inc.
4 Contributed by Sean Keys(skeys@ipdatasys.com)
5
6 This file is part of BFD, the Binary File Descriptor library.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
22
23#include "sysdep.h"
24#include "bfd.h"
25#include "bfdlink.h"
26#include "libbfd.h"
27#include "elf-bfd.h"
28#include "elf32-xgate.h"
29#include "elf/xgate.h"
30#include "opcode/xgate.h"
31#include "libiberty.h"
32
33/* Relocation functions. */
34static reloc_howto_type *
35bfd_elf32_bfd_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
36static reloc_howto_type *
37bfd_elf32_bfd_reloc_name_lookup (bfd *, const char *);
38static void
39xgate_info_to_howto_rel (bfd *, arelent *, Elf_Internal_Rela *);
40static bfd_boolean
41xgate_elf_set_mach_from_flags (bfd *);
42static struct bfd_hash_entry *
43stub_hash_newfunc (struct bfd_hash_entry *, struct bfd_hash_table *,
44 const char *);
45static struct bfd_link_hash_table*
46xgate_elf_bfd_link_hash_table_create (bfd *);
47
48/* Use REL instead of RELA to save space */
49#define USE_REL 1
50
51static reloc_howto_type elf_xgate_howto_table[] =
52{
53 /* This reloc does nothing. */
54 HOWTO (R_XGATE_NONE, /* type */
55 0, /* rightshift */
56 2, /* size (0 = byte, 1 = short, 2 = long) */
57 32, /* bitsize */
58 FALSE, /* pc_relative */
59 0, /* bitpos */
60 complain_overflow_dont,/* complain_on_overflow */
61 bfd_elf_generic_reloc, /* special_function */
62 "R_XGATE_NONE", /* name */
63 FALSE, /* partial_inplace */
64 0, /* src_mask */
65 0, /* dst_mask */
66 FALSE), /* pcrel_offset */
67
68 /* A 8 bit absolute relocation. */
69 HOWTO (R_XGATE_8, /* type */
70 0, /* rightshift */
71 0, /* size (0 = byte, 1 = short, 2 = long) */
72 8, /* bitsize */
73 FALSE, /* pc_relative */
74 0, /* bitpos */
75 complain_overflow_bitfield, /* complain_on_overflow */
76 bfd_elf_generic_reloc, /* special_function */
77 "R_XGATE_8", /* name */
78 FALSE, /* partial_inplace */
79 0x00ff, /* src_mask */
80 0x00ff, /* dst_mask */
81 FALSE), /* pcrel_offset */
82
83 /* A 8 bit PC-rel relocation. */
84 HOWTO (R_XGATE_PCREL_8, /* type */
85 0, /* rightshift */
86 0, /* size (0 = byte, 1 = short, 2 = long) */
87 8, /* bitsize */
88 TRUE, /* pc_relative */
89 0, /* bitpos */
90 complain_overflow_bitfield, /* complain_on_overflow */
91 bfd_elf_generic_reloc, /* special_function */
92 "R_XGATE_PCREL_8", /* name */
93 FALSE, /* partial_inplace */
94 0x00ff, /* src_mask */
95 0x00ff, /* dst_mask */
96 TRUE), /* pcrel_offset */
97
98 /* A 16 bit absolute relocation. */
99 HOWTO (R_XGATE_16, /* type */
100 0, /* rightshift */
101 1, /* size (0 = byte, 1 = short, 2 = long) */
102 16, /* bitsize */
103 FALSE, /* pc_relative */
104 0, /* bitpos */
105 complain_overflow_dont /*bitfield */, /* complain_on_overflow */
106 bfd_elf_generic_reloc, /* special_function */
107 "R_XGATE_16", /* name */
108 FALSE, /* partial_inplace */
d6273433
SK		 109 0xffff, /* src_mask */
110 0xffff, /* dst_mask */
a8acc5fb
NC		 111 FALSE), /* pcrel_offset */
112
113 /* A 32 bit absolute relocation. This one is never used for the
114 code relocation. It's used by gas for -gstabs generation. */
115 HOWTO (R_XGATE_32, /* type */
116 0, /* rightshift */
117 2, /* size (0 = byte, 1 = short, 2 = long) */
118 32, /* bitsize */
119 FALSE, /* pc_relative */
120 0, /* bitpos */
121 complain_overflow_bitfield, /* complain_on_overflow */
122 bfd_elf_generic_reloc, /* special_function */
123 "R_XGATE_32", /* name */
124 FALSE, /* partial_inplace */
125 0xffffffff, /* src_mask */
126 0xffffffff, /* dst_mask */
127 FALSE), /* pcrel_offset */
128
129 /* A 16 bit PC-rel relocation. */
130 HOWTO (R_XGATE_PCREL_16, /* type */
131 0, /* rightshift */
132 1, /* size (0 = byte, 1 = short, 2 = long) */
133 16, /* bitsize */
134 TRUE, /* pc_relative */
135 0, /* bitpos */
136 complain_overflow_dont, /* complain_on_overflow */
137 bfd_elf_generic_reloc, /* special_function */
138 "R_XGATE_PCREL_16", /* name */
139 FALSE, /* partial_inplace */
140 0xffff, /* src_mask */
141 0xffff, /* dst_mask */
142 TRUE), /* pcrel_offset */
143
144 /* GNU extension to record C++ vtable hierarchy. */
145 HOWTO (R_XGATE_GNU_VTINHERIT, /* type */
146 0, /* rightshift */
147 1, /* size (0 = byte, 1 = short, 2 = long) */
148 0, /* bitsize */
149 FALSE, /* pc_relative */
150 0, /* bitpos */
151 complain_overflow_dont, /* complain_on_overflow */
152 NULL, /* special_function */
153 "R_XGATE_GNU_VTINHERIT", /* name */
154 FALSE, /* partial_inplace */
155 0, /* src_mask */
156 0, /* dst_mask */
157 FALSE), /* pcrel_offset */
158
159 /* GNU extension to record C++ vtable member usage. */
160 HOWTO (R_XGATE_GNU_VTENTRY, /* type */
161 0, /* rightshift */
162 1, /* size (0 = byte, 1 = short, 2 = long) */
163 0, /* bitsize */
164 FALSE, /* pc_relative */
165 0, /* bitpos */
166 complain_overflow_dont, /* complain_on_overflow */
167 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
168 "R_XGATE_GNU_VTENTRY", /* name */
169 FALSE, /* partial_inplace */
170 0, /* src_mask */
171 0, /* dst_mask */
172 FALSE), /* pcrel_offset */
173
174 /* A 24 bit relocation. */
175 HOWTO (R_XGATE_24, /* type */
176 0, /* rightshift */
177 1, /* size (0 = byte, 1 = short, 2 = long) */
178 16, /* bitsize */
179 FALSE, /* pc_relative */
180 0, /* bitpos */
181 complain_overflow_dont, /* complain_on_overflow */
182 bfd_elf_generic_reloc, /* special_function */
183 "R_XGATE_IMM8_LO", /* name */
184 FALSE, /* partial_inplace */
185 0x00ff, /* src_mask */
186 0x00ff, /* dst_mask */
187 FALSE), /* pcrel_offset */
188
189 /* A 16-bit low relocation. */
190 HOWTO (R_XGATE_LO16, /* type */
191 8, /* rightshift */
192 1, /* size (0 = byte, 1 = short, 2 = long) */
193 16, /* bitsize */
194 FALSE, /* pc_relative */
195 0, /* bitpos */
196 complain_overflow_dont, /* complain_on_overflow */
197 bfd_elf_generic_reloc, /* special_function */
198 "R_XGATE_IMM8_HI", /* name */
199 FALSE, /* partial_inplace */
200 0x00ff, /* src_mask */
201 0x00ff, /* dst_mask */
202 FALSE), /* pcrel_offset */
203
204 /* A page relocation. */
205 HOWTO (R_XGATE_GPAGE, /* type */
206 0, /* rightshift */
207 0, /* size (0 = byte, 1 = short, 2 = long) */
208 8, /* bitsize */
209 FALSE, /* pc_relative */
210 0, /* bitpos */
211 complain_overflow_dont, /* complain_on_overflow */
212 xgate_elf_special_reloc,/* special_function */
213 "R_XGATE_GPAGE", /* name */
214 FALSE, /* partial_inplace */
215 0x00ff, /* src_mask */
216 0x00ff, /* dst_mask */
217 FALSE), /* pcrel_offset */
218
219 /* A 9 bit absolute relocation. */
220 HOWTO (R_XGATE_PCREL_9, /* type */
221 0, /* rightshift */
222 1, /* size (0 = byte, 1 = short, 2 = long) */
223 9, /* bitsize */
224 TRUE, /* pc_relative */
225 0, /* bitpos */
226 complain_overflow_bitfield, /* complain_on_overflow */
227 bfd_elf_generic_reloc, /* special_function */
228 "R_XGATE_PCREL_9", /* name */
229 FALSE, /* partial_inplace */
230 0xffff, /* src_mask */
231 0xffff, /* dst_mask */
232 TRUE), /* pcrel_offset */
233
234 /* A 8 bit absolute relocation (upper address). */
235 HOWTO (R_XGATE_PCREL_10, /* type */
236 8, /* rightshift */
237 0, /* size (0 = byte, 1 = short, 2 = long) */
238 10, /* bitsize */
239 TRUE, /* pc_relative */
240 0, /* bitpos */
241 complain_overflow_dont, /* complain_on_overflow */
242 bfd_elf_generic_reloc, /* special_function */
243 "R_XGATE_PCREL_10", /* name */
244 FALSE, /* partial_inplace */
245 0x00ff, /* src_mask */
246 0x00ff, /* dst_mask */
247 TRUE), /* pcrel_offset */
248
249 /* A 8 bit absolute relocation. */
250 HOWTO (R_XGATE_IMM8_LO, /* type */
251 0, /* rightshift */
252 1, /* size (0 = byte, 1 = short, 2 = long) */
253 16, /* bitsize */
254 FALSE, /* pc_relative */
255 0, /* bitpos */
256 complain_overflow_dont, /* complain_on_overflow */
257 bfd_elf_generic_reloc, /* special_function */
258 "R_XGATE_IMM8_LO", /* name */
259 FALSE, /* partial_inplace */
260 0xffff, /* src_mask */
261 0xffff, /* dst_mask */
262 FALSE), /* pcrel_offset */
263
264 /* A 16 bit absolute relocation (upper address). */
265 HOWTO (R_XGATE_IMM8_HI, /* type */
266 8, /* rightshift */
267 1, /* size (0 = byte, 1 = short, 2 = long) */
268 16, /* bitsize */
269 FALSE, /* pc_relative */
270 0, /* bitpos */
271 complain_overflow_dont, /* complain_on_overflow */
272 bfd_elf_generic_reloc, /* special_function */
273 "R_XGATE_IMM8_HI", /* name */
274 FALSE, /* partial_inplace */
275 0x00ff, /* src_mask */
276 0x00ff, /* dst_mask */
277 FALSE), /* pcrel_offset */
278
279 /* A 3 bit absolute relocation. */
280 HOWTO (R_XGATE_IMM3, /* type */
281 8, /* rightshift */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
283 16, /* bitsize */
284 FALSE, /* pc_relative */
285 0, /* bitpos */
286 complain_overflow_dont, /* complain_on_overflow */
287 bfd_elf_generic_reloc, /* special_function */
288 "R_XGATE_IMM3", /* name */
289 FALSE, /* partial_inplace */
290 0x00ff, /* src_mask */
291 0x00ff, /* dst_mask */
292 FALSE), /* pcrel_offset */
293
294 /* A 4 bit absolute relocation. */
295 HOWTO (R_XGATE_IMM4, /* type */
296 8, /* rightshift */
297 1, /* size (0 = byte, 1 = short, 2 = long) */
298 16, /* bitsize */
299 FALSE, /* pc_relative */
300 0, /* bitpos */
301 complain_overflow_dont, /* complain_on_overflow */
302 bfd_elf_generic_reloc, /* special_function */
303 "R_XGATE_IMM4", /* name */
304 FALSE, /* partial_inplace */
305 0x00ff, /* src_mask */
306 0x00ff, /* dst_mask */
307 FALSE), /* pcrel_offset */
308
309 /* A 5 bit absolute relocation. */
310 HOWTO (R_XGATE_IMM5, /* type */
311 8, /* rightshift */
312 1, /* size (0 = byte, 1 = short, 2 = long) */
313 16, /* bitsize */
314 FALSE, /* pc_relative */
315 0, /* bitpos */
316 complain_overflow_dont, /* complain_on_overflow */
317 bfd_elf_generic_reloc, /* special_function */
318 "R_XGATE_IMM5", /* name */
319 FALSE, /* partial_inplace */
320 0x00ff, /* src_mask */
321 0x00ff, /* dst_mask */
322 FALSE), /* pcrel_offset */
323
324 /* Mark beginning of a jump instruction (any form). */
325 HOWTO (R_XGATE_RL_JUMP, /* type */
326 0, /* rightshift */
327 1, /* size (0 = byte, 1 = short, 2 = long) */
328 0, /* bitsize */
329 FALSE, /* pc_relative */
330 0, /* bitpos */
331 complain_overflow_dont, /* complain_on_overflow */
332 xgate_elf_ignore_reloc, /* special_function */
333 "R_XGATE_RL_JUMP", /* name */
334 TRUE, /* partial_inplace */
335 0, /* src_mask */
336 0, /* dst_mask */
337 TRUE), /* pcrel_offset */
338
339 /* Mark beginning of Gcc relaxation group instruction. */
340 HOWTO (R_XGATE_RL_GROUP, /* type */
341 0, /* rightshift */
342 1, /* size (0 = byte, 1 = short, 2 = long) */
343 0, /* bitsize */
344 FALSE, /* pc_relative */
345 0, /* bitpos */
346 complain_overflow_dont, /* complain_on_overflow */
347 xgate_elf_ignore_reloc, /* special_function */
348 "R_XGATE_RL_GROUP", /* name */
349 TRUE, /* partial_inplace */
350 0, /* src_mask */
351 0, /* dst_mask */
352 TRUE), /* pcrel_offset */
353};
354
355/* Map BFD reloc types to XGATE ELF reloc types. */
356
357struct xgate_reloc_map
358{
359 bfd_reloc_code_real_type bfd_reloc_val;
360 unsigned char elf_reloc_val;
361};
362
363static const struct xgate_reloc_map xgate_reloc_map[] =
364{
365 {BFD_RELOC_NONE, R_XGATE_NONE},
366 {BFD_RELOC_8, R_XGATE_8},
367 {BFD_RELOC_8_PCREL, R_XGATE_PCREL_8},
368 {BFD_RELOC_16_PCREL, R_XGATE_PCREL_16},
369 {BFD_RELOC_16, R_XGATE_16},
370 {BFD_RELOC_32, R_XGATE_32},
371
372 {BFD_RELOC_VTABLE_INHERIT, R_XGATE_GNU_VTINHERIT},
373 {BFD_RELOC_VTABLE_ENTRY, R_XGATE_GNU_VTENTRY},
374
375 {BFD_RELOC_XGATE_LO16, R_XGATE_LO16},
376 {BFD_RELOC_XGATE_GPAGE, R_XGATE_GPAGE},
377 {BFD_RELOC_XGATE_24, R_XGATE_24},
378 {BFD_RELOC_XGATE_PCREL_9, R_XGATE_PCREL_9},
379 {BFD_RELOC_XGATE_PCREL_10, R_XGATE_PCREL_10},
380 {BFD_RELOC_XGATE_IMM8_LO, R_XGATE_IMM8_LO},
381 {BFD_RELOC_XGATE_IMM8_HI, R_XGATE_IMM8_HI},
382 {BFD_RELOC_XGATE_IMM3, R_XGATE_IMM3},
383 {BFD_RELOC_XGATE_IMM4, R_XGATE_IMM4},
384 {BFD_RELOC_XGATE_IMM5, R_XGATE_IMM5},
385
386 {BFD_RELOC_XGATE_RL_JUMP, R_XGATE_RL_JUMP},
387 {BFD_RELOC_XGATE_RL_GROUP, R_XGATE_RL_GROUP},
388};
389
390static reloc_howto_type *
391bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
392 bfd_reloc_code_real_type code)
393{
394 unsigned int i;
395
396 for (i = 0; i < ARRAY_SIZE (xgate_reloc_map); i++)
397 if (xgate_reloc_map[i].bfd_reloc_val == code)
398 return &elf_xgate_howto_table[xgate_reloc_map[i].elf_reloc_val];
399
400 return NULL;
401}
402
403static reloc_howto_type *
404bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
405{
406 unsigned int i;
407
408 for (i = 0; i < ARRAY_SIZE (elf_xgate_howto_table); i++)
409 if (elf_xgate_howto_table[i].name != NULL
410 && strcasecmp (elf_xgate_howto_table[i].name, r_name) == 0)
411 return &elf_xgate_howto_table[i];
412
413 return NULL;
414}
415
416/* Set the howto pointer for an XGATE ELF reloc. */
417
418static void
419xgate_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
420 arelent *cache_ptr,
421 Elf_Internal_Rela *dst)
422{
423 unsigned int r_type;
424
425 r_type = ELF32_R_TYPE (dst->r_info);
426 BFD_ASSERT(r_type < (unsigned int) R_XGATE_max);
427 cache_ptr->howto = &elf_xgate_howto_table[r_type];
428}
429
430/* Free the derived linker hash table. */
431
432void
433xgate_elf_bfd_link_hash_table_free (struct bfd_link_hash_table *hash)
434{
435 struct xgate_elf_link_hash_table *ret =
436 (struct xgate_elf_link_hash_table *) hash;
437
438 bfd_hash_table_free (ret->stub_hash_table);
439 free (ret->stub_hash_table);
440 _bfd_generic_link_hash_table_free (hash);
441}
442
443/* Create a XGATE ELF linker hash table. */
444
445static struct bfd_link_hash_table*
446xgate_elf_bfd_link_hash_table_create (bfd *abfd)
447{
448 struct xgate_elf_link_hash_table *ret;
449 bfd_size_type amt = sizeof(struct xgate_elf_link_hash_table);
450
7bf52ea2 451 ret = (struct xgate_elf_link_hash_table *) bfd_zmalloc (amt);
a8acc5fb
NC		 452 if (ret == (struct xgate_elf_link_hash_table *) NULL)
453 return NULL;
454
a8acc5fb
NC		 455 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
456 _bfd_elf_link_hash_newfunc, sizeof(struct elf_link_hash_entry),
457 XGATE_ELF_DATA))
458 {
459 free (ret);
460 return NULL;
461 }
462
463 /* Init the stub hash table too. */
464 amt = sizeof(struct bfd_hash_table);
7bf52ea2 465 ret->stub_hash_table = (struct bfd_hash_table*) bfd_zmalloc (amt);
a8acc5fb
NC		 466 if (ret->stub_hash_table == NULL)
467 {
468 free (ret);
469 return NULL;
470 }
471
472 if (!bfd_hash_table_init (ret->stub_hash_table, stub_hash_newfunc,
473 sizeof(struct elf32_xgate_stub_hash_entry)))
7bf52ea2
AM		 474 {
475 free (ret->stub_hash_table);
476 free (ret);
477 return NULL;
478 }
a8acc5fb
NC		 479
480 return &ret->root.root;
481}
482
483static bfd_boolean
484xgate_elf_set_mach_from_flags (bfd *abfd ATTRIBUTE_UNUSED)
485{
486 return TRUE;
487}
488
489/* Specific sections:
490 - The .page0 is a data section that is mapped in [0x0000..0x00FF].
491 Page0 accesses are faster on the M68HC12.
492 - The .vectors is the section that represents the interrupt
493 vectors.
494 - The .xgate section is starts in 0xE08800 or as xgate sees it 0x0800. */
495static const struct bfd_elf_special_section elf32_xgate_special_sections[] =
496{
497 { STRING_COMMA_LEN (".eeprom"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
498 { STRING_COMMA_LEN (".page0"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
499 { STRING_COMMA_LEN (".softregs"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
500 { STRING_COMMA_LEN (".vectors"), 0, SHT_PROGBITS, SHF_ALLOC },
501/*{ STRING_COMMA_LEN (".xgate"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
502 TODO finish this implementation */
503 { NULL, 0, 0, 0, 0 }
504};
505
506struct xgate_scan_param
507{
508 struct xgate_page_info* pinfo;
509 bfd_boolean use_memory_banks;
510};
511
512/* Assorted hash table functions. */
513
514/* Initialize an entry in the stub hash table. */
515
516static struct bfd_hash_entry *
517stub_hash_newfunc (struct bfd_hash_entry *entry,
518 struct bfd_hash_table *table ATTRIBUTE_UNUSED,
519 const char *string ATTRIBUTE_UNUSED)
520{
521 return entry;
522}
523
524/* Hook called by the linker routine which adds symbols from an object
525 file. */
526
527bfd_boolean
528elf32_xgate_add_symbol_hook (bfd *abfd ATTRIBUTE_UNUSED,
529 struct bfd_link_info *info ATTRIBUTE_UNUSED,
fe540416 530 Elf_Internal_Sym *sym,
a8acc5fb
NC		 531 const char **namep ATTRIBUTE_UNUSED,
532 flagword *flagsp ATTRIBUTE_UNUSED,
533 asection **secp ATTRIBUTE_UNUSED,
534 bfd_vma *valp ATTRIBUTE_UNUSED)
535{
fe540416
SK		 536 /* For some reason the st_target_internal value is not retained
537 after xgate_frob_symbol is called, hence this temp hack. */
538 sym->st_target_internal = 1;
a8acc5fb
NC		 539 return TRUE;
540}
541
542/* External entry points for sizing and building linker stubs. */
543
544/* Set up various things so that we can make a list of input sections
545 for each output section included in the link. Returns -1 on error,
546 0 when no stubs will be needed, and 1 on success. */
547
548int
549elf32_xgate_setup_section_lists (bfd *output_bfd ATTRIBUTE_UNUSED,
550 struct bfd_link_info *info ATTRIBUTE_UNUSED)
551{
552 return 1;
553}
554
555/* Determine and set the size of the stub section for a final link.
556 The basic idea here is to examine all the relocations looking for
557 PC-relative calls to a target that is unreachable with any "9-bit PC-REL"
558 instruction. */
559
560bfd_boolean
561elf32_xgate_size_stubs (bfd *output_bfd ATTRIBUTE_UNUSED,
562 bfd *stub_bfd ATTRIBUTE_UNUSED,
563 struct bfd_link_info *info ATTRIBUTE_UNUSED,
564 asection * (*add_stub_section) (const char*, asection*) ATTRIBUTE_UNUSED)
565{
566 return FALSE;
567}
568
569/* Build all the stubs associated with the current output file. The
570 stubs are kept in a hash table attached to the main linker hash
571 table. This function is called via xgateelf_finish in the
572 linker. */
573
574bfd_boolean
575elf32_xgate_build_stubs (bfd *abfd ATTRIBUTE_UNUSED,
576 struct bfd_link_info *info ATTRIBUTE_UNUSED)
577{
578 return TRUE;
579}
580
581void
582xgate_elf_get_bank_parameters (struct bfd_link_info *info ATTRIBUTE_UNUSED)
583{
584 return;
585}
586
587/* This function is used for relocs which are only used for relaxing,
588 which the linker should otherwise ignore. */
589
590bfd_reloc_status_type
591xgate_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
592 arelent *reloc_entry,
593 asymbol *symbol ATTRIBUTE_UNUSED,
594 void *data ATTRIBUTE_UNUSED,
595 asection *input_section,
596 bfd *output_bfd,
597 char **error_message ATTRIBUTE_UNUSED)
598{
599 if (output_bfd != NULL)
600 reloc_entry->address += input_section->output_offset;
601 return bfd_reloc_ok;
602}
603
604bfd_reloc_status_type
605xgate_elf_special_reloc (bfd *abfd ATTRIBUTE_UNUSED,
606 arelent *reloc_entry ATTRIBUTE_UNUSED,
607 asymbol *symbol ATTRIBUTE_UNUSED,
608 void *data ATTRIBUTE_UNUSED,
609 asection *input_section ATTRIBUTE_UNUSED,
610 bfd *output_bfd ATTRIBUTE_UNUSED,
611 char **error_message ATTRIBUTE_UNUSED)
612{
613 abort ();
614}
615
616/* Look through the relocs for a section during the first phase.
617 Since we don't do .gots or .plts, we just need to consider the
618 virtual table relocs for gc. */
619
620bfd_boolean
621elf32_xgate_check_relocs (bfd *abfd ATTRIBUTE_UNUSED,
622 struct bfd_link_info *info ATTRIBUTE_UNUSED,
623 asection *sec ATTRIBUTE_UNUSED,
624 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
625{
626 return TRUE;
627}
628
629/* Relocate a XGATE/S12x ELF section. */
630
631bfd_boolean
632elf32_xgate_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
633 struct bfd_link_info *info ATTRIBUTE_UNUSED,
634 bfd *input_bfd ATTRIBUTE_UNUSED,
635 asection *input_section ATTRIBUTE_UNUSED,
636 bfd_byte *contents ATTRIBUTE_UNUSED,
637 Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED,
638 Elf_Internal_Sym *local_syms ATTRIBUTE_UNUSED,
639 asection **local_sections ATTRIBUTE_UNUSED)
640{
641 return TRUE;
642}
643
644/* Set and control ELF flags in ELF header. */
645
646bfd_boolean
647_bfd_xgate_elf_set_private_flags (bfd *abfd ATTRIBUTE_UNUSED,
648 flagword flags ATTRIBUTE_UNUSED)
649{
650 return TRUE;
651}
652
653/* Merge backend specific data from an object file to the output
654 object file when linking. */
655
656bfd_boolean
657_bfd_xgate_elf_merge_private_bfd_data (bfd *ibfd ATTRIBUTE_UNUSED,
658 bfd *obfd ATTRIBUTE_UNUSED)
659{
660 return TRUE;
661}
662
663bfd_boolean
664_bfd_xgate_elf_print_private_bfd_data (bfd *abfd, void *ptr)
665{
666 FILE *file = (FILE *) ptr;
667
668 BFD_ASSERT (abfd != NULL && ptr != NULL);
669
670 /* Print normal ELF private data. */
671 _bfd_elf_print_private_bfd_data (abfd, ptr);
672
673 /* xgettext:c-format */
674 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
675
676 if (elf_elfheader (abfd)->e_flags & E_XGATE_I32)
677 fprintf (file, _("[abi=32-bit int, "));
678 else
679 fprintf (file, _("[abi=16-bit int, "));
680
681 if (elf_elfheader (abfd)->e_flags & E_XGATE_F64)
682 fprintf (file, _("64-bit double, "));
683 else
684 fprintf (file, _("32-bit double, "));
685 if (elf_elfheader (abfd)->e_flags & EF_XGATE_MACH)
686 fprintf (file, _("cpu=XGATE]"));
687 else
688 fprintf (file, _("error reading cpu type from elf private data"));
689 fputc ('\n', file);
690
691 return TRUE;
692}
693
694void
695elf32_xgate_post_process_headers (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
696{
697
698}
699
700#define ELF_ARCH bfd_arch_xgate
701#define ELF_MACHINE_CODE EM_XGATE
702#define ELF_TARGET_ID XGATE_ELF_DATA
703
704#define ELF_MAXPAGESIZE 0x1000
705
706#define TARGET_BIG_SYM bfd_elf32_xgate_vec
707#define TARGET_BIG_NAME "elf32-xgate"
708
709#define elf_info_to_howto 0
710#define elf_info_to_howto_rel xgate_info_to_howto_rel
711#define elf_backend_check_relocs elf32_xgate_check_relocs
712#define elf_backend_relocate_section elf32_xgate_relocate_section
713#define elf_backend_object_p xgate_elf_set_mach_from_flags
714#define elf_backend_final_write_processing 0
715#define elf_backend_can_gc_sections 1
716#define elf_backend_special_sections elf32_xgate_special_sections
717#define elf_backend_post_process_headers elf32_xgate_post_process_headers
718#define elf_backend_add_symbol_hook elf32_xgate_add_symbol_hook
719
720#define bfd_elf32_bfd_link_hash_table_create xgate_elf_bfd_link_hash_table_create
721#define bfd_elf32_bfd_link_hash_table_free xgate_elf_bfd_link_hash_table_free
722#define bfd_elf32_bfd_merge_private_bfd_data _bfd_xgate_elf_merge_private_bfd_data
723#define bfd_elf32_bfd_set_private_flags _bfd_xgate_elf_set_private_flags
724#define bfd_elf32_bfd_print_private_bfd_data _bfd_xgate_elf_print_private_bfd_data
725
726#define xgate_stub_hash_lookup(table, string, create, copy) \
727 ((struct elf32_xgate_stub_hash_entry *) \
728 bfd_hash_lookup ((table), (string), (create), (copy)))
729
730#include "elf32-target.h"
GDB Binutils - Deliverables
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