1 /* V850-specific support for 32-bit ELF
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
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.
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.
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, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 /* XXX FIXME: This code is littered with 32bit int, 16bit short, 8bit char
22 dependencies. As is the gas & simulator code for the v850. */
30 #include "libiberty.h"
32 /* Sign-extend a 24-bit number. */
33 #define SEXT24(x) ((((x) & 0xffffff) ^ 0x800000) - 0x800000)
35 static reloc_howto_type *v850_elf_reloc_type_lookup
36 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
37 static void v850_elf_info_to_howto_rel
38 PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
39 static void v850_elf_info_to_howto_rela
40 PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
41 static bfd_reloc_status_type v850_elf_reloc
42 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
43 static boolean v850_elf_is_local_label_name
44 PARAMS ((bfd *, const char *));
45 static boolean v850_elf_relocate_section
46 PARAMS((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
47 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
48 static bfd_reloc_status_type v850_elf_perform_relocation
49 PARAMS ((bfd *, unsigned int, bfd_vma, bfd_byte *));
50 static boolean v850_elf_check_relocs
51 PARAMS ((bfd *, struct bfd_link_info *, asection *, const Elf_Internal_Rela *));
52 static void remember_hi16s_reloc
53 PARAMS ((bfd *, bfd_vma, bfd_byte *));
54 static bfd_byte * find_remembered_hi16s_reloc
55 PARAMS ((bfd_vma, boolean *));
56 static bfd_reloc_status_type v850_elf_final_link_relocate
57 PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *, bfd_byte *, bfd_vma,
58 bfd_vma, bfd_vma, struct bfd_link_info *, asection *, int));
59 static boolean v850_elf_object_p
61 static boolean v850_elf_fake_sections
62 PARAMS ((bfd *, Elf32_Internal_Shdr *, asection *));
63 static void v850_elf_final_write_processing
64 PARAMS ((bfd *, boolean));
65 static boolean v850_elf_set_private_flags
66 PARAMS ((bfd *, flagword));
67 static boolean v850_elf_merge_private_bfd_data
68 PARAMS ((bfd *, bfd *));
69 static boolean v850_elf_print_private_bfd_data
70 PARAMS ((bfd *, PTR));
71 static boolean v850_elf_section_from_bfd_section
72 PARAMS ((bfd *, asection *, int *));
73 static void v850_elf_symbol_processing
74 PARAMS ((bfd *, asymbol *));
75 static boolean v850_elf_add_symbol_hook
76 PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
77 const char **, flagword *, asection **, bfd_vma *));
78 static boolean v850_elf_link_output_symbol_hook
79 PARAMS ((bfd *, struct bfd_link_info *, const char *,
80 Elf_Internal_Sym *, asection *));
81 static boolean v850_elf_section_from_shdr
82 PARAMS ((bfd *, Elf_Internal_Shdr *, const char *));
83 static boolean v850_elf_gc_sweep_hook
84 PARAMS ((bfd *, struct bfd_link_info *, asection *,
85 const Elf_Internal_Rela *));
86 static asection * v850_elf_gc_mark_hook
87 PARAMS ((asection *, struct bfd_link_info *,
88 Elf_Internal_Rela *, struct elf_link_hash_entry *,
90 static bfd_reloc_status_type v850_elf_ignore_reloc
91 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
92 static boolean v850_elf_relax_delete_bytes
93 PARAMS ((bfd *, asection *, bfd_vma, bfd_vma, int));
94 static boolean v850_elf_relax_section
95 PARAMS ((bfd *, asection *, struct bfd_link_info *, boolean *));
97 /* Note: It is REQUIRED that the 'type' value of each entry
98 in this array match the index of the entry in the array. */
99 static reloc_howto_type v850_elf_howto_table[] =
101 /* This reloc does nothing. */
102 HOWTO (R_V850_NONE, /* type */
104 2, /* size (0 = byte, 1 = short, 2 = long) */
106 false, /* pc_relative */
108 complain_overflow_bitfield, /* complain_on_overflow */
109 bfd_elf_generic_reloc, /* special_function */
110 "R_V850_NONE", /* name */
111 false, /* partial_inplace */
114 false), /* pcrel_offset */
116 /* A PC relative 9 bit branch. */
117 HOWTO (R_V850_9_PCREL, /* type */
119 2, /* size (0 = byte, 1 = short, 2 = long) */
121 true, /* pc_relative */
123 complain_overflow_bitfield, /* complain_on_overflow */
124 v850_elf_reloc, /* special_function */
125 "R_V850_9_PCREL", /* name */
126 false, /* partial_inplace */
127 0x00ffffff, /* src_mask */
128 0x00ffffff, /* dst_mask */
129 true), /* pcrel_offset */
131 /* A PC relative 22 bit branch. */
132 HOWTO (R_V850_22_PCREL, /* type */
134 2, /* size (0 = byte, 1 = short, 2 = long) */
136 true, /* pc_relative */
138 complain_overflow_signed, /* complain_on_overflow */
139 v850_elf_reloc, /* special_function */
140 "R_V850_22_PCREL", /* name */
141 false, /* partial_inplace */
142 0x07ffff80, /* src_mask */
143 0x07ffff80, /* dst_mask */
144 true), /* pcrel_offset */
146 /* High 16 bits of symbol value. */
147 HOWTO (R_V850_HI16_S, /* type */
149 1, /* size (0 = byte, 1 = short, 2 = long) */
151 false, /* pc_relative */
153 complain_overflow_dont, /* complain_on_overflow */
154 v850_elf_reloc, /* special_function */
155 "R_V850_HI16_S", /* name */
156 false, /* partial_inplace */
157 0xffff, /* src_mask */
158 0xffff, /* dst_mask */
159 false), /* pcrel_offset */
161 /* High 16 bits of symbol value. */
162 HOWTO (R_V850_HI16, /* type */
164 1, /* size (0 = byte, 1 = short, 2 = long) */
166 false, /* pc_relative */
168 complain_overflow_dont, /* complain_on_overflow */
169 v850_elf_reloc, /* special_function */
170 "R_V850_HI16", /* name */
171 false, /* partial_inplace */
172 0xffff, /* src_mask */
173 0xffff, /* dst_mask */
174 false), /* pcrel_offset */
176 /* Low 16 bits of symbol value. */
177 HOWTO (R_V850_LO16, /* type */
179 1, /* size (0 = byte, 1 = short, 2 = long) */
181 false, /* pc_relative */
183 complain_overflow_dont, /* complain_on_overflow */
184 v850_elf_reloc, /* special_function */
185 "R_V850_LO16", /* name */
186 false, /* partial_inplace */
187 0xffff, /* src_mask */
188 0xffff, /* dst_mask */
189 false), /* pcrel_offset */
191 /* Simple 32bit reloc. */
192 HOWTO (R_V850_32, /* type */
194 2, /* size (0 = byte, 1 = short, 2 = long) */
196 false, /* pc_relative */
198 complain_overflow_dont, /* complain_on_overflow */
199 v850_elf_reloc, /* special_function */
200 "R_V850_32", /* name */
201 false, /* partial_inplace */
202 0xffffffff, /* src_mask */
203 0xffffffff, /* dst_mask */
204 false), /* pcrel_offset */
206 /* Simple 16bit reloc. */
207 HOWTO (R_V850_16, /* type */
209 1, /* size (0 = byte, 1 = short, 2 = long) */
211 false, /* pc_relative */
213 complain_overflow_dont, /* complain_on_overflow */
214 bfd_elf_generic_reloc, /* special_function */
215 "R_V850_16", /* name */
216 false, /* partial_inplace */
217 0xffff, /* src_mask */
218 0xffff, /* dst_mask */
219 false), /* pcrel_offset */
221 /* Simple 8bit reloc. */
222 HOWTO (R_V850_8, /* type */
224 0, /* size (0 = byte, 1 = short, 2 = long) */
226 false, /* pc_relative */
228 complain_overflow_dont, /* complain_on_overflow */
229 bfd_elf_generic_reloc, /* special_function */
230 "R_V850_8", /* name */
231 false, /* partial_inplace */
234 false), /* pcrel_offset */
236 /* 16 bit offset from the short data area pointer. */
237 HOWTO (R_V850_SDA_16_16_OFFSET, /* type */
239 1, /* size (0 = byte, 1 = short, 2 = long) */
241 false, /* pc_relative */
243 complain_overflow_dont, /* complain_on_overflow */
244 v850_elf_reloc, /* special_function */
245 "R_V850_SDA_16_16_OFFSET", /* name */
246 false, /* partial_inplace */
247 0xffff, /* src_mask */
248 0xffff, /* dst_mask */
249 false), /* pcrel_offset */
251 /* 15 bit offset from the short data area pointer. */
252 HOWTO (R_V850_SDA_15_16_OFFSET, /* type */
254 1, /* size (0 = byte, 1 = short, 2 = long) */
256 false, /* pc_relative */
258 complain_overflow_dont, /* complain_on_overflow */
259 v850_elf_reloc, /* special_function */
260 "R_V850_SDA_15_16_OFFSET", /* name */
261 false, /* partial_inplace */
262 0xfffe, /* src_mask */
263 0xfffe, /* dst_mask */
264 false), /* pcrel_offset */
266 /* 16 bit offset from the zero data area pointer. */
267 HOWTO (R_V850_ZDA_16_16_OFFSET, /* type */
269 1, /* size (0 = byte, 1 = short, 2 = long) */
271 false, /* pc_relative */
273 complain_overflow_dont, /* complain_on_overflow */
274 v850_elf_reloc, /* special_function */
275 "R_V850_ZDA_16_16_OFFSET", /* name */
276 false, /* partial_inplace */
277 0xffff, /* src_mask */
278 0xffff, /* dst_mask */
279 false), /* pcrel_offset */
281 /* 15 bit offset from the zero data area pointer. */
282 HOWTO (R_V850_ZDA_15_16_OFFSET, /* type */
284 1, /* size (0 = byte, 1 = short, 2 = long) */
286 false, /* pc_relative */
288 complain_overflow_dont, /* complain_on_overflow */
289 v850_elf_reloc, /* special_function */
290 "R_V850_ZDA_15_16_OFFSET", /* name */
291 false, /* partial_inplace */
292 0xfffe, /* src_mask */
293 0xfffe, /* dst_mask */
294 false), /* pcrel_offset */
296 /* 6 bit offset from the tiny data area pointer. */
297 HOWTO (R_V850_TDA_6_8_OFFSET, /* type */
299 1, /* size (0 = byte, 1 = short, 2 = long) */
301 false, /* pc_relative */
303 complain_overflow_dont, /* complain_on_overflow */
304 v850_elf_reloc, /* special_function */
305 "R_V850_TDA_6_8_OFFSET", /* name */
306 false, /* partial_inplace */
309 false), /* pcrel_offset */
311 /* 8 bit offset from the tiny data area pointer. */
312 HOWTO (R_V850_TDA_7_8_OFFSET, /* type */
314 1, /* size (0 = byte, 1 = short, 2 = long) */
316 false, /* pc_relative */
318 complain_overflow_dont, /* complain_on_overflow */
319 v850_elf_reloc, /* special_function */
320 "R_V850_TDA_7_8_OFFSET", /* name */
321 false, /* partial_inplace */
324 false), /* pcrel_offset */
326 /* 7 bit offset from the tiny data area pointer. */
327 HOWTO (R_V850_TDA_7_7_OFFSET, /* type */
329 1, /* size (0 = byte, 1 = short, 2 = long) */
331 false, /* pc_relative */
333 complain_overflow_dont, /* complain_on_overflow */
334 v850_elf_reloc, /* special_function */
335 "R_V850_TDA_7_7_OFFSET", /* name */
336 false, /* partial_inplace */
339 false), /* pcrel_offset */
341 /* 16 bit offset from the tiny data area pointer! */
342 HOWTO (R_V850_TDA_16_16_OFFSET, /* type */
344 1, /* size (0 = byte, 1 = short, 2 = long) */
346 false, /* pc_relative */
348 complain_overflow_dont, /* complain_on_overflow */
349 v850_elf_reloc, /* special_function */
350 "R_V850_TDA_16_16_OFFSET", /* name */
351 false, /* partial_inplace */
352 0xffff, /* src_mask */
353 0xfff, /* dst_mask */
354 false), /* pcrel_offset */
356 /* 5 bit offset from the tiny data area pointer. */
357 HOWTO (R_V850_TDA_4_5_OFFSET, /* type */
359 1, /* size (0 = byte, 1 = short, 2 = long) */
361 false, /* pc_relative */
363 complain_overflow_dont, /* complain_on_overflow */
364 v850_elf_reloc, /* special_function */
365 "R_V850_TDA_4_5_OFFSET", /* name */
366 false, /* partial_inplace */
369 false), /* pcrel_offset */
371 /* 4 bit offset from the tiny data area pointer. */
372 HOWTO (R_V850_TDA_4_4_OFFSET, /* type */
374 1, /* size (0 = byte, 1 = short, 2 = long) */
376 false, /* pc_relative */
378 complain_overflow_dont, /* complain_on_overflow */
379 v850_elf_reloc, /* special_function */
380 "R_V850_TDA_4_4_OFFSET", /* name */
381 false, /* partial_inplace */
384 false), /* pcrel_offset */
386 /* 16 bit offset from the short data area pointer. */
387 HOWTO (R_V850_SDA_16_16_SPLIT_OFFSET, /* type */
389 2, /* size (0 = byte, 1 = short, 2 = long) */
391 false, /* pc_relative */
393 complain_overflow_dont, /* complain_on_overflow */
394 v850_elf_reloc, /* special_function */
395 "R_V850_SDA_16_16_SPLIT_OFFSET",/* name */
396 false, /* partial_inplace */
397 0xfffe0020, /* src_mask */
398 0xfffe0020, /* dst_mask */
399 false), /* pcrel_offset */
401 /* 16 bit offset from the zero data area pointer. */
402 HOWTO (R_V850_ZDA_16_16_SPLIT_OFFSET, /* type */
404 2, /* size (0 = byte, 1 = short, 2 = long) */
406 false, /* pc_relative */
408 complain_overflow_dont, /* complain_on_overflow */
409 v850_elf_reloc, /* special_function */
410 "R_V850_ZDA_16_16_SPLIT_OFFSET",/* name */
411 false, /* partial_inplace */
412 0xfffe0020, /* src_mask */
413 0xfffe0020, /* dst_mask */
414 false), /* pcrel_offset */
416 /* 6 bit offset from the call table base pointer. */
417 HOWTO (R_V850_CALLT_6_7_OFFSET, /* type */
419 1, /* size (0 = byte, 1 = short, 2 = long) */
421 false, /* pc_relative */
423 complain_overflow_dont, /* complain_on_overflow */
424 v850_elf_reloc, /* special_function */
425 "R_V850_CALLT_6_7_OFFSET", /* name */
426 false, /* partial_inplace */
429 false), /* pcrel_offset */
431 /* 16 bit offset from the call table base pointer. */
432 HOWTO (R_V850_CALLT_16_16_OFFSET, /* type */
434 1, /* size (0 = byte, 1 = short, 2 = long) */
436 false, /* pc_relative */
438 complain_overflow_dont, /* complain_on_overflow */
439 v850_elf_reloc, /* special_function */
440 "R_V850_CALLT_16_16_OFFSET", /* name */
441 false, /* partial_inplace */
442 0xffff, /* src_mask */
443 0xffff, /* dst_mask */
444 false), /* pcrel_offset */
446 /* GNU extension to record C++ vtable hierarchy */
447 HOWTO (R_V850_GNU_VTINHERIT, /* type */
449 2, /* size (0 = byte, 1 = short, 2 = long) */
451 false, /* pc_relative */
453 complain_overflow_dont, /* complain_on_overflow */
454 NULL, /* special_function */
455 "R_V850_GNU_VTINHERIT", /* name */
456 false, /* partial_inplace */
459 false), /* pcrel_offset */
461 /* GNU extension to record C++ vtable member usage */
462 HOWTO (R_V850_GNU_VTENTRY, /* type */
464 2, /* size (0 = byte, 1 = short, 2 = long) */
466 false, /* pc_relative */
468 complain_overflow_dont, /* complain_on_overflow */
469 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
470 "R_V850_GNU_VTENTRY", /* name */
471 false, /* partial_inplace */
474 false), /* pcrel_offset */
476 /* Indicates a .longcall pseudo-op. The compiler will generate a .longcall
477 pseudo-op when it finds a function call which can be relaxed. */
478 HOWTO (R_V850_LONGCALL, /* type */
480 2, /* size (0 = byte, 1 = short, 2 = long) */
482 true, /* pc_relative */
484 complain_overflow_signed, /* complain_on_overflow */
485 v850_elf_ignore_reloc, /* special_function */
486 "R_V850_LONGCALL", /* name */
487 false, /* partial_inplace */
490 true), /* pcrel_offset */
492 /* Indicates a .longjump pseudo-op. The compiler will generate a
493 .longjump pseudo-op when it finds a branch which can be relaxed. */
494 HOWTO (R_V850_LONGJUMP, /* type */
496 2, /* size (0 = byte, 1 = short, 2 = long) */
498 true, /* pc_relative */
500 complain_overflow_signed, /* complain_on_overflow */
501 v850_elf_ignore_reloc, /* special_function */
502 "R_V850_LONGJUMP", /* name */
503 false, /* partial_inplace */
506 true), /* pcrel_offset */
508 HOWTO (R_V850_ALIGN, /* type */
510 1, /* size (0 = byte, 1 = short, 2 = long) */
512 false, /* pc_relative */
514 complain_overflow_unsigned, /* complain_on_overflow */
515 v850_elf_ignore_reloc, /* special_function */
516 "R_V850_ALIGN", /* name */
517 false, /* partial_inplace */
520 true), /* pcrel_offset */
523 /* Map BFD reloc types to V850 ELF reloc types. */
525 struct v850_elf_reloc_map
527 /* BFD_RELOC_V850_CALLT_16_16_OFFSET is 258, which will not fix in an
529 bfd_reloc_code_real_type bfd_reloc_val;
530 unsigned int elf_reloc_val;
533 static const struct v850_elf_reloc_map v850_elf_reloc_map[] =
535 { BFD_RELOC_NONE, R_V850_NONE },
536 { BFD_RELOC_V850_9_PCREL, R_V850_9_PCREL },
537 { BFD_RELOC_V850_22_PCREL, R_V850_22_PCREL },
538 { BFD_RELOC_HI16_S, R_V850_HI16_S },
539 { BFD_RELOC_HI16, R_V850_HI16 },
540 { BFD_RELOC_LO16, R_V850_LO16 },
541 { BFD_RELOC_32, R_V850_32 },
542 { BFD_RELOC_16, R_V850_16 },
543 { BFD_RELOC_8, R_V850_8 },
544 { BFD_RELOC_V850_SDA_16_16_OFFSET, R_V850_SDA_16_16_OFFSET },
545 { BFD_RELOC_V850_SDA_15_16_OFFSET, R_V850_SDA_15_16_OFFSET },
546 { BFD_RELOC_V850_ZDA_16_16_OFFSET, R_V850_ZDA_16_16_OFFSET },
547 { BFD_RELOC_V850_ZDA_15_16_OFFSET, R_V850_ZDA_15_16_OFFSET },
548 { BFD_RELOC_V850_TDA_6_8_OFFSET, R_V850_TDA_6_8_OFFSET },
549 { BFD_RELOC_V850_TDA_7_8_OFFSET, R_V850_TDA_7_8_OFFSET },
550 { BFD_RELOC_V850_TDA_7_7_OFFSET, R_V850_TDA_7_7_OFFSET },
551 { BFD_RELOC_V850_TDA_16_16_OFFSET, R_V850_TDA_16_16_OFFSET },
552 { BFD_RELOC_V850_TDA_4_5_OFFSET, R_V850_TDA_4_5_OFFSET },
553 { BFD_RELOC_V850_TDA_4_4_OFFSET, R_V850_TDA_4_4_OFFSET },
554 { BFD_RELOC_V850_SDA_16_16_SPLIT_OFFSET, R_V850_SDA_16_16_SPLIT_OFFSET },
555 { BFD_RELOC_V850_ZDA_16_16_SPLIT_OFFSET, R_V850_ZDA_16_16_SPLIT_OFFSET },
556 { BFD_RELOC_V850_CALLT_6_7_OFFSET, R_V850_CALLT_6_7_OFFSET },
557 { BFD_RELOC_V850_CALLT_16_16_OFFSET, R_V850_CALLT_16_16_OFFSET },
558 { BFD_RELOC_VTABLE_INHERIT, R_V850_GNU_VTINHERIT },
559 { BFD_RELOC_VTABLE_ENTRY, R_V850_GNU_VTENTRY },
560 { BFD_RELOC_V850_LONGCALL, R_V850_LONGCALL },
561 { BFD_RELOC_V850_LONGJUMP, R_V850_LONGJUMP },
562 { BFD_RELOC_V850_ALIGN, R_V850_ALIGN },
566 /* Map a bfd relocation into the appropriate howto structure. */
568 static reloc_howto_type *
569 v850_elf_reloc_type_lookup (abfd, code)
570 bfd * abfd ATTRIBUTE_UNUSED;
571 bfd_reloc_code_real_type code;
575 for (i = ARRAY_SIZE (v850_elf_reloc_map); i --;)
576 if (v850_elf_reloc_map[i].bfd_reloc_val == code)
578 unsigned int elf_reloc_val = v850_elf_reloc_map[i].elf_reloc_val;
580 BFD_ASSERT (v850_elf_howto_table[elf_reloc_val].type == elf_reloc_val);
582 return v850_elf_howto_table + elf_reloc_val;
588 /* Set the howto pointer for an V850 ELF reloc. */
591 v850_elf_info_to_howto_rel (abfd, cache_ptr, dst)
592 bfd * abfd ATTRIBUTE_UNUSED;
594 Elf32_Internal_Rel * dst;
598 r_type = ELF32_R_TYPE (dst->r_info);
599 BFD_ASSERT (r_type < (unsigned int) R_V850_max);
600 cache_ptr->howto = &v850_elf_howto_table[r_type];
603 /* Set the howto pointer for a V850 ELF reloc (type RELA). */
605 v850_elf_info_to_howto_rela (abfd, cache_ptr, dst)
606 bfd * abfd ATTRIBUTE_UNUSED;
608 Elf32_Internal_Rela *dst;
612 r_type = ELF32_R_TYPE (dst->r_info);
613 BFD_ASSERT (r_type < (unsigned int) R_V850_max);
614 cache_ptr->howto = &v850_elf_howto_table[r_type];
617 /* Look through the relocs for a section during the first phase, and
618 allocate space in the global offset table or procedure linkage
622 v850_elf_check_relocs (abfd, info, sec, relocs)
624 struct bfd_link_info * info;
626 const Elf_Internal_Rela * relocs;
630 Elf_Internal_Shdr *symtab_hdr;
631 struct elf_link_hash_entry **sym_hashes;
632 const Elf_Internal_Rela *rel;
633 const Elf_Internal_Rela *rel_end;
635 enum v850_reloc_type r_type;
637 const char *common = (const char *)0;
639 if (info->relocateable)
643 fprintf (stderr, "v850_elf_check_relocs called for section %s in %s\n",
644 bfd_get_section_name (abfd, sec),
645 bfd_archive_filename (abfd));
648 dynobj = elf_hash_table (info)->dynobj;
649 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
650 sym_hashes = elf_sym_hashes (abfd);
653 rel_end = relocs + sec->reloc_count;
654 for (rel = relocs; rel < rel_end; rel++)
656 unsigned long r_symndx;
657 struct elf_link_hash_entry *h;
659 r_symndx = ELF32_R_SYM (rel->r_info);
660 if (r_symndx < symtab_hdr->sh_info)
663 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
665 r_type = (enum v850_reloc_type) ELF32_R_TYPE (rel->r_info);
671 case R_V850_22_PCREL:
678 case R_V850_CALLT_6_7_OFFSET:
679 case R_V850_CALLT_16_16_OFFSET:
682 /* This relocation describes the C++ object vtable hierarchy.
683 Reconstruct it for later use during GC. */
684 case R_V850_GNU_VTINHERIT:
685 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
689 /* This relocation describes which C++ vtable entries
690 are actually used. Record for later use during GC. */
691 case R_V850_GNU_VTENTRY:
692 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
696 case R_V850_SDA_16_16_SPLIT_OFFSET:
697 case R_V850_SDA_16_16_OFFSET:
698 case R_V850_SDA_15_16_OFFSET:
699 other = V850_OTHER_SDA;
701 goto small_data_common;
703 case R_V850_ZDA_16_16_SPLIT_OFFSET:
704 case R_V850_ZDA_16_16_OFFSET:
705 case R_V850_ZDA_15_16_OFFSET:
706 other = V850_OTHER_ZDA;
708 goto small_data_common;
710 case R_V850_TDA_4_5_OFFSET:
711 case R_V850_TDA_4_4_OFFSET:
712 case R_V850_TDA_6_8_OFFSET:
713 case R_V850_TDA_7_8_OFFSET:
714 case R_V850_TDA_7_7_OFFSET:
715 case R_V850_TDA_16_16_OFFSET:
716 other = V850_OTHER_TDA;
720 #define V850_OTHER_MASK (V850_OTHER_TDA | V850_OTHER_SDA | V850_OTHER_ZDA)
725 /* Flag which type of relocation was used. */
727 if ((h->other & V850_OTHER_MASK) != (other & V850_OTHER_MASK)
728 && (h->other & V850_OTHER_ERROR) == 0)
731 static char buff[200]; /* XXX */
733 switch (h->other & V850_OTHER_MASK)
736 msg = _("Variable `%s' cannot occupy in multiple small data regions");
738 case V850_OTHER_SDA | V850_OTHER_ZDA | V850_OTHER_TDA:
739 msg = _("Variable `%s' can only be in one of the small, zero, and tiny data regions");
741 case V850_OTHER_SDA | V850_OTHER_ZDA:
742 msg = _("Variable `%s' cannot be in both small and zero data regions simultaneously");
744 case V850_OTHER_SDA | V850_OTHER_TDA:
745 msg = _("Variable `%s' cannot be in both small and tiny data regions simultaneously");
747 case V850_OTHER_ZDA | V850_OTHER_TDA:
748 msg = _("Variable `%s' cannot be in both zero and tiny data regions simultaneously");
752 sprintf (buff, msg, h->root.root.string);
753 info->callbacks->warning (info, buff, h->root.root.string,
754 abfd, h->root.u.def.section,
757 bfd_set_error (bfd_error_bad_value);
758 h->other |= V850_OTHER_ERROR;
763 if (h && h->root.type == bfd_link_hash_common
765 && !strcmp (bfd_get_section_name (abfd, h->root.u.c.p->section), "COMMON"))
769 section = h->root.u.c.p->section = bfd_make_section_old_way (abfd, common);
770 section->flags |= SEC_IS_COMMON;
774 fprintf (stderr, "v850_elf_check_relocs, found %s relocation for %s%s\n",
775 v850_elf_howto_table[ (int)r_type ].name,
776 (h && h->root.root.string) ? h->root.root.string : "<unknown>",
777 (h->root.type == bfd_link_hash_common) ? ", symbol is common" : "");
786 /* In the old version, when an entry was checked out from the table,
787 it was deleted. This produced an error if the entry was needed
788 more than once, as the second attempted retry failed.
790 In the current version, the entry is not deleted, instead we set
791 the field 'found' to true. If a second lookup matches the same
792 entry, then we know that the hi16s reloc has already been updated
793 and does not need to be updated a second time.
795 TODO - TOFIX: If it is possible that we need to restore 2 different
796 addresses from the same table entry, where the first generates an
797 overflow, whilst the second do not, then this code will fail. */
799 typedef struct hi16s_location
803 unsigned long counter;
805 struct hi16s_location * next;
809 static hi16s_location * previous_hi16s;
810 static hi16s_location * free_hi16s;
811 static unsigned long hi16s_counter;
814 remember_hi16s_reloc (abfd, addend, address)
819 hi16s_location * entry = NULL;
820 bfd_size_type amt = sizeof (* free_hi16s);
822 /* Find a free structure. */
823 if (free_hi16s == NULL)
824 free_hi16s = (hi16s_location *) bfd_zalloc (abfd, amt);
827 free_hi16s = free_hi16s->next;
829 entry->addend = addend;
830 entry->address = address;
831 entry->counter = hi16s_counter ++;
832 entry->found = false;
833 entry->next = previous_hi16s;
834 previous_hi16s = entry;
836 /* Cope with wrap around of our counter. */
837 if (hi16s_counter == 0)
839 /* XXX - Assume that all counter entries differ only in their low 16 bits. */
840 for (entry = previous_hi16s; entry != NULL; entry = entry->next)
841 entry->counter &= 0xffff;
843 hi16s_counter = 0x10000;
850 find_remembered_hi16s_reloc (addend, already_found)
852 boolean * already_found;
854 hi16s_location * match = NULL;
855 hi16s_location * entry;
856 hi16s_location * previous = NULL;
857 hi16s_location * prev;
860 /* Search the table. Record the most recent entry that matches. */
861 for (entry = previous_hi16s; entry; entry = entry->next)
863 if (entry->addend == addend
864 && (match == NULL || match->counter < entry->counter))
876 /* Extract the address. */
877 addr = match->address;
879 /* Remeber if this entry has already been used before. */
881 * already_found = match->found;
883 /* Note that this entry has now been used. */
889 /* FIXME: The code here probably ought to be removed and the code in reloc.c
890 allowed to do its stuff instead. At least for most of the relocs, anwyay. */
892 static bfd_reloc_status_type
893 v850_elf_perform_relocation (abfd, r_type, addend, address)
900 bfd_signed_vma saddend = (bfd_signed_vma) addend;
905 /* fprintf (stderr, "reloc type %d not SUPPORTED\n", r_type ); */
906 return bfd_reloc_notsupported;
909 bfd_put_32 (abfd, addend, address);
912 case R_V850_22_PCREL:
913 if (saddend > 0x1fffff || saddend < -0x200000)
914 return bfd_reloc_overflow;
916 if ((addend % 2) != 0)
917 return bfd_reloc_dangerous;
919 insn = bfd_get_32 (abfd, address);
921 insn |= (((addend & 0xfffe) << 16) | ((addend & 0x3f0000) >> 16));
922 bfd_put_32 (abfd, (bfd_vma) insn, address);
926 if (saddend > 0xff || saddend < -0x100)
927 return bfd_reloc_overflow;
929 if ((addend % 2) != 0)
930 return bfd_reloc_dangerous;
932 insn = bfd_get_16 (abfd, address);
934 insn |= ((addend & 0x1f0) << 7) | ((addend & 0x0e) << 3);
938 addend += (bfd_get_16 (abfd, address) << 16);
939 addend = (addend >> 16);
944 /* Remember where this relocation took place. */
945 remember_hi16s_reloc (abfd, addend, address);
947 addend += (bfd_get_16 (abfd, address) << 16);
948 addend = (addend >> 16) + ((addend & 0x8000) != 0);
950 /* This relocation cannot overflow. */
958 /* Calculate the sum of the value stored in the instruction and the
959 addend and check for overflow from the low 16 bits into the high
960 16 bits. The assembler has already done some of this: If the
961 value stored in the instruction has its 15th bit set, (counting
962 from zero) then the assembler will have added 1 to the value
963 stored in the associated HI16S reloc. So for example, these
966 movhi hi( fred ), r0, r1
967 movea lo( fred ), r1, r1
969 will store 0 in the value fields for the MOVHI and MOVEA instructions
970 and addend will be the address of fred, but for these instructions:
972 movhi hi( fred + 0x123456), r0, r1
973 movea lo( fred + 0x123456), r1, r1
975 the value stored in the MOVHI instruction will be 0x12 and the value
976 stored in the MOVEA instruction will be 0x3456. If however the
979 movhi hi( fred + 0x10ffff), r0, r1
980 movea lo( fred + 0x10ffff), r1, r1
982 then the value stored in the MOVHI instruction would be 0x11 (not
983 0x10) and the value stored in the MOVEA instruction would be 0xffff.
984 Thus (assuming for the moment that the addend is 0), at run time the
985 MOVHI instruction loads 0x110000 into r1, then the MOVEA instruction
986 adds 0xffffffff (sign extension!) producing 0x10ffff. Similarly if
987 the instructions were:
989 movhi hi( fred - 1), r0, r1
990 movea lo( fred - 1), r1, r1
992 then 0 is stored in the MOVHI instruction and -1 is stored in the
995 Overflow can occur if the addition of the value stored in the
996 instruction plus the addend sets the 15th bit when before it was clear.
997 This is because the 15th bit will be sign extended into the high part,
998 thus reducing its value by one, but since the 15th bit was originally
999 clear, the assembler will not have added 1 to the previous HI16S reloc
1000 to compensate for this effect. For example:
1002 movhi hi( fred + 0x123456), r0, r1
1003 movea lo( fred + 0x123456), r1, r1
1005 The value stored in HI16S reloc is 0x12, the value stored in the LO16
1006 reloc is 0x3456. If we assume that the address of fred is 0x00007000
1007 then the relocations become:
1009 HI16S: 0x0012 + (0x00007000 >> 16) = 0x12
1010 LO16: 0x3456 + (0x00007000 & 0xffff) = 0xa456
1012 but when the instructions are executed, the MOVEA instruction's value
1013 is signed extended, so the sum becomes:
1018 0x0011a456 but 'fred + 0x123456' = 0x0012a456
1020 Note that if the 15th bit was set in the value stored in the LO16
1021 reloc, then we do not have to do anything:
1023 movhi hi( fred + 0x10ffff), r0, r1
1024 movea lo( fred + 0x10ffff), r1, r1
1026 HI16S: 0x0011 + (0x00007000 >> 16) = 0x11
1027 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff
1032 0x00116fff = fred + 0x10ffff = 0x7000 + 0x10ffff
1034 Overflow can also occur if the computation carries into the 16th bit
1035 and it also results in the 15th bit having the same value as the 15th
1036 bit of the original value. What happens is that the HI16S reloc
1037 will have already examined the 15th bit of the original value and
1038 added 1 to the high part if the bit is set. This compensates for the
1039 sign extension of 15th bit of the result of the computation. But now
1040 there is a carry into the 16th bit, and this has not been allowed for.
1042 So, for example if fred is at address 0xf000:
1044 movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set]
1045 movea lo( fred + 0xffff), r1, r1
1047 HI16S: 0x0001 + (0x0000f000 >> 16) = 0x0001
1048 LO16: 0xffff + (0x0000f000 & 0xffff) = 0xefff (carry into bit 16 is lost)
1053 0x0000efff but 'fred + 0xffff' = 0x0001efff
1055 Similarly, if the 15th bit remains clear, but overflow occurs into
1056 the 16th bit then (assuming the address of fred is 0xf000):
1058 movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear]
1059 movea lo( fred + 0x7000), r1, r1
1061 HI16S: 0x0000 + (0x0000f000 >> 16) = 0x0000
1062 LO16: 0x7000 + (0x0000f000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
1067 0x00006fff but 'fred + 0x7000' = 0x00016fff
1069 Note - there is no need to change anything if a carry occurs, and the
1070 15th bit changes its value from being set to being clear, as the HI16S
1071 reloc will have already added in 1 to the high part for us:
1073 movhi hi( fred + 0xffff), r0, r1 [bit 15 of the offset is set]
1074 movea lo( fred + 0xffff), r1, r1
1076 HI16S: 0x0001 + (0x00007000 >> 16)
1077 LO16: 0xffff + (0x00007000 & 0xffff) = 0x6fff (carry into bit 16 is lost)
1080 + 0x00006fff (bit 15 not set, so the top half is zero)
1082 0x00016fff which is right (assuming that fred is at 0x7000)
1084 but if the 15th bit goes from being clear to being set, then we must
1085 once again handle overflow:
1087 movhi hi( fred + 0x7000), r0, r1 [bit 15 of the offset is clear]
1088 movea lo( fred + 0x7000), r1, r1
1090 HI16S: 0x0000 + (0x0000ffff >> 16)
1091 LO16: 0x7000 + (0x0000ffff & 0xffff) = 0x6fff (carry into bit 16)
1094 + 0x00006fff (bit 15 not set, so the top half is zero)
1096 0x00006fff which is wrong (assuming that fred is at 0xffff). */
1100 insn = bfd_get_16 (abfd, address);
1101 result = insn + addend;
1103 #define BIT15_SET(x) ((x) & 0x8000)
1104 #define OVERFLOWS(a,i) ((((a) & 0xffff) + (i)) > 0xffff)
1106 if ((BIT15_SET (result) && ! BIT15_SET (addend))
1107 || (OVERFLOWS (addend, insn)
1108 && ((! BIT15_SET (insn)) || (BIT15_SET (addend)))))
1110 boolean already_updated;
1111 bfd_byte * hi16s_address = find_remembered_hi16s_reloc
1112 (addend, & already_updated);
1114 /* Amend the matching HI16_S relocation. */
1115 if (hi16s_address != NULL)
1117 if (! already_updated)
1119 insn = bfd_get_16 (abfd, hi16s_address);
1121 bfd_put_16 (abfd, (bfd_vma) insn, hi16s_address);
1126 fprintf (stderr, _("FAILED to find previous HI16 reloc\n"));
1127 return bfd_reloc_overflow;
1131 /* Do not complain if value has top bit set, as this has been anticipated. */
1132 insn = result & 0xffff;
1137 addend += (char) bfd_get_8 (abfd, address);
1139 saddend = (bfd_signed_vma) addend;
1141 if (saddend > 0x7f || saddend < -0x80)
1142 return bfd_reloc_overflow;
1144 bfd_put_8 (abfd, addend, address);
1145 return bfd_reloc_ok;
1147 case R_V850_CALLT_16_16_OFFSET:
1148 addend += bfd_get_16 (abfd, address);
1150 saddend = (bfd_signed_vma) addend;
1152 if (saddend > 0xffff || saddend < 0)
1153 return bfd_reloc_overflow;
1161 case R_V850_SDA_16_16_OFFSET:
1162 case R_V850_ZDA_16_16_OFFSET:
1163 case R_V850_TDA_16_16_OFFSET:
1164 addend += bfd_get_16 (abfd, address);
1166 saddend = (bfd_signed_vma) addend;
1168 if (saddend > 0x7fff || saddend < -0x8000)
1169 return bfd_reloc_overflow;
1174 case R_V850_SDA_15_16_OFFSET:
1175 case R_V850_ZDA_15_16_OFFSET:
1176 insn = bfd_get_16 (abfd, address);
1177 addend += (insn & 0xfffe);
1179 saddend = (bfd_signed_vma) addend;
1181 if (saddend > 0x7ffe || saddend < -0x8000)
1182 return bfd_reloc_overflow;
1185 return bfd_reloc_dangerous;
1187 insn = (addend &~ (bfd_vma) 1) | (insn & 1);
1190 case R_V850_TDA_6_8_OFFSET:
1191 insn = bfd_get_16 (abfd, address);
1192 addend += ((insn & 0x7e) << 1);
1194 saddend = (bfd_signed_vma) addend;
1196 if (saddend > 0xfc || saddend < 0)
1197 return bfd_reloc_overflow;
1200 return bfd_reloc_dangerous;
1203 insn |= (addend >> 1);
1206 case R_V850_TDA_7_8_OFFSET:
1207 insn = bfd_get_16 (abfd, address);
1208 addend += ((insn & 0x7f) << 1);
1210 saddend = (bfd_signed_vma) addend;
1212 if (saddend > 0xfe || saddend < 0)
1213 return bfd_reloc_overflow;
1216 return bfd_reloc_dangerous;
1219 insn |= (addend >> 1);
1222 case R_V850_TDA_7_7_OFFSET:
1223 insn = bfd_get_16 (abfd, address);
1224 addend += insn & 0x7f;
1226 saddend = (bfd_signed_vma) addend;
1228 if (saddend > 0x7f || saddend < 0)
1229 return bfd_reloc_overflow;
1235 case R_V850_TDA_4_5_OFFSET:
1236 insn = bfd_get_16 (abfd, address);
1237 addend += ((insn & 0xf) << 1);
1239 saddend = (bfd_signed_vma) addend;
1241 if (saddend > 0x1e || saddend < 0)
1242 return bfd_reloc_overflow;
1245 return bfd_reloc_dangerous;
1248 insn |= (addend >> 1);
1251 case R_V850_TDA_4_4_OFFSET:
1252 insn = bfd_get_16 (abfd, address);
1253 addend += insn & 0xf;
1255 saddend = (bfd_signed_vma) addend;
1257 if (saddend > 0xf || saddend < 0)
1258 return bfd_reloc_overflow;
1264 case R_V850_ZDA_16_16_SPLIT_OFFSET:
1265 case R_V850_SDA_16_16_SPLIT_OFFSET:
1266 insn = bfd_get_32 (abfd, address);
1267 addend += ((insn & 0xfffe0000) >> 16) + ((insn & 0x20) >> 5);
1269 saddend = (bfd_signed_vma) addend;
1271 if (saddend > 0x7fff || saddend < -0x8000)
1272 return bfd_reloc_overflow;
1275 insn |= (addend & 1) << 5;
1276 insn |= (addend &~ (bfd_vma) 1) << 16;
1278 bfd_put_32 (abfd, (bfd_vma) insn, address);
1279 return bfd_reloc_ok;
1281 case R_V850_CALLT_6_7_OFFSET:
1282 insn = bfd_get_16 (abfd, address);
1283 addend += ((insn & 0x3f) << 1);
1285 saddend = (bfd_signed_vma) addend;
1287 if (saddend > 0x7e || saddend < 0)
1288 return bfd_reloc_overflow;
1291 return bfd_reloc_dangerous;
1294 insn |= (addend >> 1);
1297 case R_V850_GNU_VTINHERIT:
1298 case R_V850_GNU_VTENTRY:
1299 return bfd_reloc_ok;
1303 bfd_put_16 (abfd, (bfd_vma) insn, address);
1304 return bfd_reloc_ok;
1307 /* Insert the addend into the instruction. */
1309 static bfd_reloc_status_type
1310 v850_elf_reloc (abfd, reloc, symbol, data, isection, obfd, err)
1311 bfd * abfd ATTRIBUTE_UNUSED;
1314 PTR data ATTRIBUTE_UNUSED;
1315 asection * isection;
1317 char ** err ATTRIBUTE_UNUSED;
1321 /* If there is an output BFD,
1322 and the symbol is not a section name (which is only defined at final link time),
1323 and either we are not putting the addend into the instruction
1324 or the addend is zero, so there is nothing to add into the instruction
1325 then just fixup the address and return. */
1326 if (obfd != (bfd *) NULL
1327 && (symbol->flags & BSF_SECTION_SYM) == 0
1328 && (! reloc->howto->partial_inplace
1329 || reloc->addend == 0))
1331 reloc->address += isection->output_offset;
1332 return bfd_reloc_ok;
1335 else if (obfd != NULL)
1336 return bfd_reloc_continue;
1339 /* Catch relocs involving undefined symbols. */
1340 if (bfd_is_und_section (symbol->section)
1341 && (symbol->flags & BSF_WEAK) == 0
1343 return bfd_reloc_undefined;
1345 /* We handle final linking of some relocs ourselves. */
1347 /* Is the address of the relocation really within the section? */
1348 if (reloc->address > isection->_cooked_size)
1349 return bfd_reloc_outofrange;
1351 /* Work out which section the relocation is targetted at and the
1352 initial relocation command value. */
1354 if (reloc->howto->pc_relative == true)
1355 return bfd_reloc_ok;
1357 /* Get symbol value. (Common symbols are special.) */
1358 if (bfd_is_com_section (symbol->section))
1361 relocation = symbol->value;
1363 /* Convert input-section-relative symbol value to absolute + addend. */
1364 relocation += symbol->section->output_section->vma;
1365 relocation += symbol->section->output_offset;
1366 relocation += reloc->addend;
1368 #if 0 /* Since this reloc is going to be processed later on, we should
1369 not make it pc-relative here. To test this, try assembling and
1370 linking this program:
1378 .section ".foo","ax"
1382 if (reloc->howto->pc_relative)
1384 /* Here the variable relocation holds the final address of the
1385 symbol we are relocating against, plus any addend. */
1386 relocation -= isection->output_section->vma + isection->output_offset;
1388 /* Deal with pcrel_offset. */
1389 relocation -= reloc->address;
1392 reloc->addend = relocation;
1393 return bfd_reloc_ok;
1396 /* This function is used for relocs which are only used
1397 for relaxing, which the linker should otherwise ignore. */
1399 static bfd_reloc_status_type
1400 v850_elf_ignore_reloc (abfd, reloc_entry, symbol, data, input_section,
1401 output_bfd, error_message)
1402 bfd * abfd ATTRIBUTE_UNUSED;
1403 arelent * reloc_entry;
1404 asymbol * symbol ATTRIBUTE_UNUSED;
1405 PTR data ATTRIBUTE_UNUSED;
1406 asection * input_section;
1408 char ** error_message ATTRIBUTE_UNUSED;
1410 if (output_bfd != NULL)
1411 reloc_entry->address += input_section->output_offset;
1413 return bfd_reloc_ok;
1417 v850_elf_is_local_label_name (abfd, name)
1418 bfd * abfd ATTRIBUTE_UNUSED;
1421 return ( (name[0] == '.' && (name[1] == 'L' || name[1] == '.'))
1422 || (name[0] == '_' && name[1] == '.' && name[2] == 'L' && name[3] == '_'));
1425 /* Perform a relocation as part of a final link. */
1427 static bfd_reloc_status_type
1428 v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
1429 input_section, contents, offset, value,
1430 addend, info, sym_sec, is_local)
1431 reloc_howto_type * howto;
1433 bfd * output_bfd ATTRIBUTE_UNUSED;
1434 asection * input_section;
1435 bfd_byte * contents;
1439 struct bfd_link_info * info;
1441 int is_local ATTRIBUTE_UNUSED;
1443 unsigned int r_type = howto->type;
1444 bfd_byte * hit_data = contents + offset;
1446 /* Adjust the value according to the relocation. */
1449 case R_V850_9_PCREL:
1450 value -= (input_section->output_section->vma
1451 + input_section->output_offset);
1455 case R_V850_22_PCREL:
1456 value -= (input_section->output_section->vma
1457 + input_section->output_offset
1460 /* If the sign extension will corrupt the value then we have overflowed. */
1461 if (((value & 0xff000000) != 0x0) && ((value & 0xff000000) != 0xff000000))
1462 return bfd_reloc_overflow;
1464 /* Only the bottom 24 bits of the PC are valid */
1465 value = SEXT24 (value);
1476 case R_V850_ZDA_15_16_OFFSET:
1477 case R_V850_ZDA_16_16_OFFSET:
1478 case R_V850_ZDA_16_16_SPLIT_OFFSET:
1479 if (sym_sec == NULL)
1480 return bfd_reloc_undefined;
1482 value -= sym_sec->output_section->vma;
1485 case R_V850_SDA_15_16_OFFSET:
1486 case R_V850_SDA_16_16_OFFSET:
1487 case R_V850_SDA_16_16_SPLIT_OFFSET:
1490 struct bfd_link_hash_entry * h;
1492 if (sym_sec == NULL)
1493 return bfd_reloc_undefined;
1495 /* Get the value of __gp. */
1496 h = bfd_link_hash_lookup (info->hash, "__gp", false, false, true);
1497 if (h == (struct bfd_link_hash_entry *) NULL
1498 || h->type != bfd_link_hash_defined)
1499 return bfd_reloc_other;
1501 gp = (h->u.def.value
1502 + h->u.def.section->output_section->vma
1503 + h->u.def.section->output_offset);
1505 value -= sym_sec->output_section->vma;
1506 value -= (gp - sym_sec->output_section->vma);
1510 case R_V850_TDA_4_4_OFFSET:
1511 case R_V850_TDA_4_5_OFFSET:
1512 case R_V850_TDA_16_16_OFFSET:
1513 case R_V850_TDA_7_7_OFFSET:
1514 case R_V850_TDA_7_8_OFFSET:
1515 case R_V850_TDA_6_8_OFFSET:
1518 struct bfd_link_hash_entry * h;
1520 /* Get the value of __ep. */
1521 h = bfd_link_hash_lookup (info->hash, "__ep", false, false, true);
1522 if (h == (struct bfd_link_hash_entry *) NULL
1523 || h->type != bfd_link_hash_defined)
1524 /* Actually this indicates that __ep could not be found. */
1525 return bfd_reloc_continue;
1527 ep = (h->u.def.value
1528 + h->u.def.section->output_section->vma
1529 + h->u.def.section->output_offset);
1535 case R_V850_CALLT_6_7_OFFSET:
1538 struct bfd_link_hash_entry * h;
1540 /* Get the value of __ctbp. */
1541 h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
1542 if (h == (struct bfd_link_hash_entry *) NULL
1543 || h->type != bfd_link_hash_defined)
1544 /* Actually this indicates that __ctbp could not be found. */
1545 return bfd_reloc_dangerous + 1;
1547 ctbp = (h->u.def.value
1548 + h->u.def.section->output_section->vma
1549 + h->u.def.section->output_offset);
1554 case R_V850_CALLT_16_16_OFFSET:
1557 struct bfd_link_hash_entry * h;
1559 if (sym_sec == NULL)
1560 return bfd_reloc_undefined;
1562 /* Get the value of __ctbp. */
1563 h = bfd_link_hash_lookup (info->hash, "__ctbp", false, false, true);
1564 if (h == (struct bfd_link_hash_entry *) NULL
1565 || h->type != bfd_link_hash_defined)
1566 return (bfd_reloc_dangerous + 1);
1568 ctbp = (h->u.def.value
1569 + h->u.def.section->output_section->vma
1570 + h->u.def.section->output_offset);
1572 value -= sym_sec->output_section->vma;
1573 value -= (ctbp - sym_sec->output_section->vma);
1578 case R_V850_GNU_VTINHERIT:
1579 case R_V850_GNU_VTENTRY:
1580 case R_V850_LONGCALL:
1581 case R_V850_LONGJUMP:
1583 return bfd_reloc_ok;
1586 return bfd_reloc_notsupported;
1589 /* Perform the relocation. */
1590 return v850_elf_perform_relocation (input_bfd, r_type, value + addend, hit_data);
1593 /* Relocate an V850 ELF section. */
1596 v850_elf_relocate_section (output_bfd, info, input_bfd, input_section,
1597 contents, relocs, local_syms, local_sections)
1599 struct bfd_link_info * info;
1601 asection * input_section;
1602 bfd_byte * contents;
1603 Elf_Internal_Rela * relocs;
1604 Elf_Internal_Sym * local_syms;
1605 asection ** local_sections;
1607 Elf_Internal_Shdr * symtab_hdr;
1608 struct elf_link_hash_entry ** sym_hashes;
1609 Elf_Internal_Rela * rel;
1610 Elf_Internal_Rela * relend;
1612 if (info->relocateable)
1615 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
1616 sym_hashes = elf_sym_hashes (input_bfd);
1618 if (sym_hashes == NULL)
1620 info->callbacks->warning
1621 (info, "no hash table available",
1622 NULL, input_bfd, input_section, (bfd_vma) 0);
1627 /* Reset the list of remembered HI16S relocs to empty. */
1628 free_hi16s = previous_hi16s;
1629 previous_hi16s = NULL;
1633 relend = relocs + input_section->reloc_count;
1634 for (; rel < relend; rel++)
1637 reloc_howto_type * howto;
1638 unsigned long r_symndx;
1639 Elf_Internal_Sym * sym;
1641 struct elf_link_hash_entry * h;
1643 bfd_reloc_status_type r;
1645 r_symndx = ELF32_R_SYM (rel->r_info);
1646 r_type = ELF32_R_TYPE (rel->r_info);
1648 if (r_type == R_V850_GNU_VTENTRY
1649 || r_type == R_V850_GNU_VTINHERIT)
1652 /* This is a final link. */
1653 howto = v850_elf_howto_table + r_type;
1657 if (r_symndx < symtab_hdr->sh_info)
1659 sym = local_syms + r_symndx;
1660 sec = local_sections[r_symndx];
1661 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
1666 name = bfd_elf_string_from_elf_section (input_bfd, symtab_hdr->sh_link, sym->st_name);
1667 name = (name == NULL) ? "<none>" : name;
1668 fprintf (stderr, "local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
1669 sec->name, name, sym->st_name,
1670 sec->output_section->vma, sec->output_offset, sym->st_value, rel->r_addend);
1676 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1678 while (h->root.type == bfd_link_hash_indirect
1679 || h->root.type == bfd_link_hash_warning)
1680 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1682 if (h->root.type == bfd_link_hash_defined
1683 || h->root.type == bfd_link_hash_defweak)
1685 sec = h->root.u.def.section;
1686 relocation = (h->root.u.def.value
1687 + sec->output_section->vma
1688 + sec->output_offset);
1690 fprintf (stderr, "defined: sec: %s, name: %s, value: %x + %x + %x gives: %x\n",
1691 sec->name, h->root.root.string, h->root.u.def.value, sec->output_section->vma, sec->output_offset, relocation);
1694 else if (h->root.type == bfd_link_hash_undefweak)
1697 fprintf (stderr, "undefined: sec: %s, name: %s\n",
1698 sec->name, h->root.root.string);
1704 if (! ((*info->callbacks->undefined_symbol)
1705 (info, h->root.root.string, input_bfd,
1706 input_section, rel->r_offset, true)))
1709 fprintf (stderr, "unknown: name: %s\n", h->root.root.string);
1715 /* FIXME: We should use the addend, but the COFF relocations don't. */
1716 r = v850_elf_final_link_relocate (howto, input_bfd, output_bfd,
1718 contents, rel->r_offset,
1719 relocation, rel->r_addend,
1720 info, sec, h == NULL);
1722 if (r != bfd_reloc_ok)
1725 const char * msg = (const char *)0;
1728 name = h->root.root.string;
1731 name = (bfd_elf_string_from_elf_section
1732 (input_bfd, symtab_hdr->sh_link, sym->st_name));
1733 if (name == NULL || *name == '\0')
1734 name = bfd_section_name (input_bfd, sec);
1739 case bfd_reloc_overflow:
1740 if (! ((*info->callbacks->reloc_overflow)
1741 (info, name, howto->name, (bfd_vma) 0,
1742 input_bfd, input_section, rel->r_offset)))
1746 case bfd_reloc_undefined:
1747 if (! ((*info->callbacks->undefined_symbol)
1748 (info, name, input_bfd, input_section,
1749 rel->r_offset, true)))
1753 case bfd_reloc_outofrange:
1754 msg = _("internal error: out of range error");
1757 case bfd_reloc_notsupported:
1758 msg = _("internal error: unsupported relocation error");
1761 case bfd_reloc_dangerous:
1762 msg = _("internal error: dangerous relocation");
1765 case bfd_reloc_other:
1766 msg = _("could not locate special linker symbol __gp");
1769 case bfd_reloc_continue:
1770 msg = _("could not locate special linker symbol __ep");
1773 case (bfd_reloc_dangerous + 1):
1774 msg = _("could not locate special linker symbol __ctbp");
1778 msg = _("internal error: unknown error");
1782 if (!((*info->callbacks->warning)
1783 (info, msg, name, input_bfd, input_section,
1795 v850_elf_gc_sweep_hook (abfd, info, sec, relocs)
1796 bfd *abfd ATTRIBUTE_UNUSED;
1797 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1798 asection *sec ATTRIBUTE_UNUSED;
1799 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
1801 /* No got and plt entries for v850-elf. */
1806 v850_elf_gc_mark_hook (sec, info, rel, h, sym)
1808 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1809 Elf_Internal_Rela *rel;
1810 struct elf_link_hash_entry *h;
1811 Elf_Internal_Sym *sym;
1815 switch (ELF32_R_TYPE (rel->r_info))
1817 case R_V850_GNU_VTINHERIT:
1818 case R_V850_GNU_VTENTRY:
1822 switch (h->root.type)
1824 case bfd_link_hash_defined:
1825 case bfd_link_hash_defweak:
1826 return h->root.u.def.section;
1828 case bfd_link_hash_common:
1829 return h->root.u.c.p->section;
1837 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
1842 /* Set the right machine number. */
1845 v850_elf_object_p (abfd)
1848 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
1852 bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850);
1855 bfd_default_set_arch_mach (abfd, bfd_arch_v850, bfd_mach_v850e);
1861 /* Store the machine number in the flags field. */
1864 v850_elf_final_write_processing (abfd, linker)
1866 boolean linker ATTRIBUTE_UNUSED;
1870 switch (bfd_get_mach (abfd))
1873 case bfd_mach_v850: val = E_V850_ARCH; break;
1874 case bfd_mach_v850e: val = E_V850E_ARCH; break;
1877 elf_elfheader (abfd)->e_flags &=~ EF_V850_ARCH;
1878 elf_elfheader (abfd)->e_flags |= val;
1881 /* Function to keep V850 specific file flags. */
1884 v850_elf_set_private_flags (abfd, flags)
1888 BFD_ASSERT (!elf_flags_init (abfd)
1889 || elf_elfheader (abfd)->e_flags == flags);
1891 elf_elfheader (abfd)->e_flags = flags;
1892 elf_flags_init (abfd) = true;
1896 /* Merge backend specific data from an object file
1897 to the output object file when linking. */
1899 v850_elf_merge_private_bfd_data (ibfd, obfd)
1906 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
1907 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
1910 in_flags = elf_elfheader (ibfd)->e_flags;
1911 out_flags = elf_elfheader (obfd)->e_flags;
1913 if (! elf_flags_init (obfd))
1915 /* If the input is the default architecture then do not
1916 bother setting the flags for the output architecture,
1917 instead allow future merges to do this. If no future
1918 merges ever set these flags then they will retain their
1919 unitialised values, which surprise surprise, correspond
1920 to the default values. */
1921 if (bfd_get_arch_info (ibfd)->the_default)
1924 elf_flags_init (obfd) = true;
1925 elf_elfheader (obfd)->e_flags = in_flags;
1927 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
1928 && bfd_get_arch_info (obfd)->the_default)
1929 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd), bfd_get_mach (ibfd));
1934 /* Check flag compatibility. */
1935 if (in_flags == out_flags)
1938 if ((in_flags & EF_V850_ARCH) != (out_flags & EF_V850_ARCH)
1939 && (in_flags & EF_V850_ARCH) != E_V850_ARCH)
1940 _bfd_error_handler (_("%s: Architecture mismatch with previous modules"),
1941 bfd_archive_filename (ibfd));
1946 /* Display the flags field. */
1949 v850_elf_print_private_bfd_data (abfd, ptr)
1953 FILE * file = (FILE *) ptr;
1955 BFD_ASSERT (abfd != NULL && ptr != NULL);
1957 _bfd_elf_print_private_bfd_data (abfd, ptr);
1959 /* xgettext:c-format */
1960 fprintf (file, _("private flags = %lx: "), elf_elfheader (abfd)->e_flags);
1962 switch (elf_elfheader (abfd)->e_flags & EF_V850_ARCH)
1965 case E_V850_ARCH: fprintf (file, _("v850 architecture")); break;
1966 case E_V850E_ARCH: fprintf (file, _("v850e architecture")); break;
1974 /* V850 ELF uses four common sections. One is the usual one, and the
1975 others are for (small) objects in one of the special data areas:
1976 small, tiny and zero. All the objects are kept together, and then
1977 referenced via the gp register, the ep register or the r0 register
1978 respectively, which yields smaller, faster assembler code. This
1979 approach is copied from elf32-mips.c. */
1981 static asection v850_elf_scom_section;
1982 static asymbol v850_elf_scom_symbol;
1983 static asymbol * v850_elf_scom_symbol_ptr;
1984 static asection v850_elf_tcom_section;
1985 static asymbol v850_elf_tcom_symbol;
1986 static asymbol * v850_elf_tcom_symbol_ptr;
1987 static asection v850_elf_zcom_section;
1988 static asymbol v850_elf_zcom_symbol;
1989 static asymbol * v850_elf_zcom_symbol_ptr;
1991 /* Given a BFD section, try to locate the
1992 corresponding ELF section index. */
1995 v850_elf_section_from_bfd_section (abfd, sec, retval)
1996 bfd * abfd ATTRIBUTE_UNUSED;
2000 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
2001 *retval = SHN_V850_SCOMMON;
2002 else if (strcmp (bfd_get_section_name (abfd, sec), ".tcommon") == 0)
2003 *retval = SHN_V850_TCOMMON;
2004 else if (strcmp (bfd_get_section_name (abfd, sec), ".zcommon") == 0)
2005 *retval = SHN_V850_ZCOMMON;
2012 /* Handle the special V850 section numbers that a symbol may use. */
2015 v850_elf_symbol_processing (abfd, asym)
2019 elf_symbol_type * elfsym = (elf_symbol_type *) asym;
2022 indx = elfsym->internal_elf_sym.st_shndx;
2024 /* If the section index is an "ordinary" index, then it may
2025 refer to a v850 specific section created by the assembler.
2026 Check the section's type and change the index it matches.
2028 FIXME: Should we alter the st_shndx field as well ? */
2030 if (indx < elf_numsections (abfd))
2031 switch (elf_elfsections(abfd)[indx]->sh_type)
2033 case SHT_V850_SCOMMON:
2034 indx = SHN_V850_SCOMMON;
2037 case SHT_V850_TCOMMON:
2038 indx = SHN_V850_TCOMMON;
2041 case SHT_V850_ZCOMMON:
2042 indx = SHN_V850_ZCOMMON;
2051 case SHN_V850_SCOMMON:
2052 if (v850_elf_scom_section.name == NULL)
2054 /* Initialize the small common section. */
2055 v850_elf_scom_section.name = ".scommon";
2056 v850_elf_scom_section.flags = SEC_IS_COMMON | SEC_ALLOC | SEC_DATA;
2057 v850_elf_scom_section.output_section = & v850_elf_scom_section;
2058 v850_elf_scom_section.symbol = & v850_elf_scom_symbol;
2059 v850_elf_scom_section.symbol_ptr_ptr = & v850_elf_scom_symbol_ptr;
2060 v850_elf_scom_symbol.name = ".scommon";
2061 v850_elf_scom_symbol.flags = BSF_SECTION_SYM;
2062 v850_elf_scom_symbol.section = & v850_elf_scom_section;
2063 v850_elf_scom_symbol_ptr = & v850_elf_scom_symbol;
2065 asym->section = & v850_elf_scom_section;
2066 asym->value = elfsym->internal_elf_sym.st_size;
2069 case SHN_V850_TCOMMON:
2070 if (v850_elf_tcom_section.name == NULL)
2072 /* Initialize the tcommon section. */
2073 v850_elf_tcom_section.name = ".tcommon";
2074 v850_elf_tcom_section.flags = SEC_IS_COMMON;
2075 v850_elf_tcom_section.output_section = & v850_elf_tcom_section;
2076 v850_elf_tcom_section.symbol = & v850_elf_tcom_symbol;
2077 v850_elf_tcom_section.symbol_ptr_ptr = & v850_elf_tcom_symbol_ptr;
2078 v850_elf_tcom_symbol.name = ".tcommon";
2079 v850_elf_tcom_symbol.flags = BSF_SECTION_SYM;
2080 v850_elf_tcom_symbol.section = & v850_elf_tcom_section;
2081 v850_elf_tcom_symbol_ptr = & v850_elf_tcom_symbol;
2083 asym->section = & v850_elf_tcom_section;
2084 asym->value = elfsym->internal_elf_sym.st_size;
2087 case SHN_V850_ZCOMMON:
2088 if (v850_elf_zcom_section.name == NULL)
2090 /* Initialize the zcommon section. */
2091 v850_elf_zcom_section.name = ".zcommon";
2092 v850_elf_zcom_section.flags = SEC_IS_COMMON;
2093 v850_elf_zcom_section.output_section = & v850_elf_zcom_section;
2094 v850_elf_zcom_section.symbol = & v850_elf_zcom_symbol;
2095 v850_elf_zcom_section.symbol_ptr_ptr = & v850_elf_zcom_symbol_ptr;
2096 v850_elf_zcom_symbol.name = ".zcommon";
2097 v850_elf_zcom_symbol.flags = BSF_SECTION_SYM;
2098 v850_elf_zcom_symbol.section = & v850_elf_zcom_section;
2099 v850_elf_zcom_symbol_ptr = & v850_elf_zcom_symbol;
2101 asym->section = & v850_elf_zcom_section;
2102 asym->value = elfsym->internal_elf_sym.st_size;
2107 /* Hook called by the linker routine which adds symbols from an object
2108 file. We must handle the special v850 section numbers here. */
2111 v850_elf_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
2113 struct bfd_link_info * info ATTRIBUTE_UNUSED;
2114 const Elf_Internal_Sym * sym;
2115 const char ** namep ATTRIBUTE_UNUSED;
2116 flagword * flagsp ATTRIBUTE_UNUSED;
2120 unsigned int indx = sym->st_shndx;
2122 /* If the section index is an "ordinary" index, then it may
2123 refer to a v850 specific section created by the assembler.
2124 Check the section's type and change the index it matches.
2126 FIXME: Should we alter the st_shndx field as well ? */
2128 if (indx < elf_numsections (abfd))
2129 switch (elf_elfsections(abfd)[indx]->sh_type)
2131 case SHT_V850_SCOMMON:
2132 indx = SHN_V850_SCOMMON;
2135 case SHT_V850_TCOMMON:
2136 indx = SHN_V850_TCOMMON;
2139 case SHT_V850_ZCOMMON:
2140 indx = SHN_V850_ZCOMMON;
2149 case SHN_V850_SCOMMON:
2150 *secp = bfd_make_section_old_way (abfd, ".scommon");
2151 (*secp)->flags |= SEC_IS_COMMON;
2152 *valp = sym->st_size;
2155 case SHN_V850_TCOMMON:
2156 *secp = bfd_make_section_old_way (abfd, ".tcommon");
2157 (*secp)->flags |= SEC_IS_COMMON;
2158 *valp = sym->st_size;
2161 case SHN_V850_ZCOMMON:
2162 *secp = bfd_make_section_old_way (abfd, ".zcommon");
2163 (*secp)->flags |= SEC_IS_COMMON;
2164 *valp = sym->st_size;
2172 v850_elf_link_output_symbol_hook (abfd, info, name, sym, input_sec)
2173 bfd * abfd ATTRIBUTE_UNUSED;
2174 struct bfd_link_info * info ATTRIBUTE_UNUSED;
2175 const char * name ATTRIBUTE_UNUSED;
2176 Elf_Internal_Sym * sym;
2177 asection * input_sec;
2179 /* If we see a common symbol, which implies a relocatable link, then
2180 if a symbol was in a special common section in an input file, mark
2181 it as a special common in the output file. */
2183 if (sym->st_shndx == SHN_COMMON)
2185 if (strcmp (input_sec->name, ".scommon") == 0)
2186 sym->st_shndx = SHN_V850_SCOMMON;
2187 else if (strcmp (input_sec->name, ".tcommon") == 0)
2188 sym->st_shndx = SHN_V850_TCOMMON;
2189 else if (strcmp (input_sec->name, ".zcommon") == 0)
2190 sym->st_shndx = SHN_V850_ZCOMMON;
2197 v850_elf_section_from_shdr (abfd, hdr, name)
2199 Elf_Internal_Shdr * hdr;
2202 /* There ought to be a place to keep ELF backend specific flags, but
2203 at the moment there isn't one. We just keep track of the
2204 sections by their name, instead. */
2206 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
2209 switch (hdr->sh_type)
2211 case SHT_V850_SCOMMON:
2212 case SHT_V850_TCOMMON:
2213 case SHT_V850_ZCOMMON:
2214 if (! bfd_set_section_flags (abfd, hdr->bfd_section,
2215 (bfd_get_section_flags (abfd,
2224 /* Set the correct type for a V850 ELF section. We do this
2225 by the section name, which is a hack, but ought to work. */
2228 v850_elf_fake_sections (abfd, hdr, sec)
2229 bfd * abfd ATTRIBUTE_UNUSED;
2230 Elf32_Internal_Shdr * hdr;
2233 register const char * name;
2235 name = bfd_get_section_name (abfd, sec);
2237 if (strcmp (name, ".scommon") == 0)
2239 hdr->sh_type = SHT_V850_SCOMMON;
2241 else if (strcmp (name, ".tcommon") == 0)
2243 hdr->sh_type = SHT_V850_TCOMMON;
2245 else if (strcmp (name, ".zcommon") == 0)
2246 hdr->sh_type = SHT_V850_ZCOMMON;
2251 /* Delete some bytes from a section while relaxing. */
2254 v850_elf_relax_delete_bytes (abfd, sec, addr, toaddr, count)
2261 Elf_Internal_Shdr * symtab_hdr;
2262 Elf32_External_Sym * extsyms;
2263 Elf32_External_Sym * esym;
2264 Elf32_External_Sym * esymend;
2266 unsigned int sec_shndx;
2267 bfd_byte * contents;
2268 Elf_Internal_Rela * irel;
2269 Elf_Internal_Rela * irelend;
2270 struct elf_link_hash_entry * sym_hash;
2271 Elf_Internal_Shdr * shndx_hdr;
2272 Elf_External_Sym_Shndx * shndx;
2274 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2275 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
2277 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
2279 contents = elf_section_data (sec)->this_hdr.contents;
2281 /* The deletion must stop at the next ALIGN reloc for an alignment
2282 power larger than the number of bytes we are deleting. */
2284 /* Actually delete the bytes. */
2285 #if (DEBUG_RELAX & 2)
2286 fprintf (stderr, "relax_delete: contents: sec: %s %p .. %p %x\n",
2287 sec->name, addr, toaddr, count );
2289 memmove (contents + addr, contents + addr + count,
2290 toaddr - addr - count);
2291 memset (contents + toaddr-count, 0, count);
2293 /* Adjust all the relocs. */
2294 irel = elf_section_data (sec)->relocs;
2295 irelend = irel + sec->reloc_count;
2296 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
2297 shndx = (Elf_External_Sym_Shndx *) shndx_hdr->contents;
2299 for (; irel < irelend; irel++)
2301 bfd_vma raddr, paddr, symval;
2302 Elf_Internal_Sym isym;
2304 /* Get the new reloc address. */
2305 raddr = irel->r_offset;
2306 if ((raddr >= (addr + count) && raddr < toaddr))
2307 irel->r_offset -= count;
2309 if (raddr >= addr && raddr < addr + count)
2311 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info),
2316 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN)
2319 bfd_elf32_swap_symbol_in (abfd,
2320 extsyms + ELF32_R_SYM (irel->r_info),
2321 shndx ? shndx + ELF32_R_SYM (irel->r_info) : NULL,
2324 if (isym.st_shndx != sec_shndx)
2327 /* Get the value of the symbol referred to by the reloc. */
2328 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
2330 symval = isym.st_value;
2331 #if (DEBUG_RELAX & 2)
2333 char * name = bfd_elf_string_from_elf_section
2334 (abfd, symtab_hdr->sh_link, isym.st_name);
2336 "relax_delete: local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
2337 sec->name, name, isym.st_name,
2338 sec->output_section->vma, sec->output_offset,
2339 isym.st_value, irel->r_addend);
2346 struct elf_link_hash_entry * h;
2348 /* An external symbol. */
2349 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
2351 h = elf_sym_hashes (abfd) [indx];
2352 BFD_ASSERT (h != NULL);
2354 symval = h->root.u.def.value;
2355 #if (DEBUG_RELAX & 2)
2357 "relax_delete: defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
2358 sec->name, h->root.root.string, h->root.u.def.value,
2359 sec->output_section->vma, sec->output_offset, irel->r_addend);
2363 paddr = symval + irel->r_addend;
2365 if ( (symval >= addr + count && symval < toaddr)
2366 && (paddr < addr + count || paddr >= toaddr))
2367 irel->r_addend += count;
2368 else if ( (symval < addr + count || symval >= toaddr)
2369 && (paddr >= addr + count && paddr < toaddr))
2370 irel->r_addend -= count;
2373 /* Adjust the local symbols defined in this section. */
2375 esymend = esym + symtab_hdr->sh_info;
2377 for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL))
2379 Elf_Internal_Sym isym;
2381 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
2383 if (isym.st_shndx == sec_shndx
2384 && isym.st_value >= addr + count
2385 && isym.st_value < toaddr)
2387 isym.st_value -= count;
2389 if (isym.st_value + isym.st_size >= toaddr)
2390 isym.st_size += count;
2392 bfd_elf32_swap_symbol_out (abfd, & isym, shndx, esym);
2394 else if (isym.st_shndx == sec_shndx
2395 && isym.st_value < addr + count)
2397 if (isym.st_value+isym.st_size >= addr + count
2398 && isym.st_value+isym.st_size < toaddr)
2399 isym.st_size -= count;
2401 if (isym.st_value >= addr
2402 && isym.st_value < addr + count)
2403 isym.st_value = addr;
2405 bfd_elf32_swap_symbol_out (abfd, & isym, shndx, esym);
2409 /* Now adjust the global symbols defined in this section. */
2410 esym = extsyms + symtab_hdr->sh_info;
2411 esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym));
2413 for (index = 0; esym < esymend; esym ++, index ++)
2415 Elf_Internal_Sym isym;
2417 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
2418 sym_hash = elf_sym_hashes (abfd) [index];
2420 if (isym.st_shndx == sec_shndx
2421 && ((sym_hash)->root.type == bfd_link_hash_defined
2422 || (sym_hash)->root.type == bfd_link_hash_defweak)
2423 && (sym_hash)->root.u.def.section == sec
2424 && (sym_hash)->root.u.def.value >= addr + count
2425 && (sym_hash)->root.u.def.value < toaddr)
2427 if ((sym_hash)->root.u.def.value + isym.st_size >= toaddr)
2429 isym.st_size += count;
2430 bfd_elf32_swap_symbol_out (abfd, & isym, shndx, esym);
2433 (sym_hash)->root.u.def.value -= count;
2435 else if (isym.st_shndx == sec_shndx
2436 && ((sym_hash)->root.type == bfd_link_hash_defined
2437 || (sym_hash)->root.type == bfd_link_hash_defweak)
2438 && (sym_hash)->root.u.def.section == sec
2439 && (sym_hash)->root.u.def.value < addr + count)
2441 if ((sym_hash)->root.u.def.value+isym.st_size >= addr + count
2442 && (sym_hash)->root.u.def.value+isym.st_size < toaddr)
2443 isym.st_size -= count;
2445 if ((sym_hash)->root.u.def.value >= addr
2446 && (sym_hash)->root.u.def.value < addr + count)
2447 (sym_hash)->root.u.def.value = addr;
2449 bfd_elf32_swap_symbol_out (abfd, & isym, shndx, esym);
2459 #define NOP_OPCODE (0x0000)
2460 #define MOVHI 0x0640 /* 4byte */
2461 #define MOVHI_MASK 0x07e0
2462 #define MOVHI_R1(insn) ((insn) & 0x1f) /* 4byte */
2463 #define MOVHI_R2(insn) ((insn) >> 11)
2464 #define MOVEA 0x0620 /* 2byte */
2465 #define MOVEA_MASK 0x07e0
2466 #define MOVEA_R1(insn) ((insn) & 0x1f)
2467 #define MOVEA_R2(insn) ((insn) >> 11)
2468 #define JARL_4 0x00040780 /* 4byte */
2469 #define JARL_4_MASK 0xFFFF07FF
2470 #define JARL_R2(insn) (int)(((insn) & (~JARL_4_MASK)) >> 11)
2471 #define ADD_I 0x0240 /* 2byte */
2472 #define ADD_I_MASK 0x07e0
2473 #define ADD_I5(insn) ((((insn) & 0x001f) << 11) >> 11) /* 2byte */
2474 #define ADD_R2(insn) ((insn) >> 11)
2475 #define JMP_R 0x0060 /* 2byte */
2476 #define JMP_R_MASK 0xFFE0
2477 #define JMP_R1(insn) ((insn) & 0x1f)
2480 v850_elf_relax_section (abfd, sec, link_info, again)
2483 struct bfd_link_info * link_info;
2486 Elf_Internal_Shdr * symtab_hdr;
2487 Elf_Internal_Rela * internal_relocs;
2488 Elf_Internal_Rela * free_relocs = NULL;
2489 Elf_Internal_Rela * irel;
2490 Elf_Internal_Rela * irelend;
2491 Elf_Internal_Rela * irelalign = NULL;
2492 bfd_byte * contents = NULL;
2493 bfd_byte * free_contents = NULL;
2494 Elf32_External_Sym * extsyms = NULL;
2495 Elf32_External_Sym * free_extsyms = NULL;
2498 int align_pad_size = 0;
2499 Elf_Internal_Shdr * shndx_hdr = NULL;
2500 Elf_External_Sym_Shndx * shndx_buf = NULL;
2504 if (link_info->relocateable
2505 || (sec->flags & SEC_RELOC) == 0
2506 || sec->reloc_count == 0)
2509 /* If this is the first time we have been called
2510 for this section, initialize the cooked size. */
2511 if (sec->_cooked_size == 0)
2512 sec->_cooked_size = sec->_raw_size;
2514 symtab_hdr = & elf_tdata (abfd)->symtab_hdr;
2516 internal_relocs = (_bfd_elf32_link_read_relocs
2517 (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
2518 link_info->keep_memory));
2519 if (internal_relocs == NULL)
2521 if (! link_info->keep_memory)
2522 free_relocs = internal_relocs;
2524 irelend = internal_relocs + sec->reloc_count;
2526 while (addr < sec->_cooked_size)
2528 toaddr = sec->_cooked_size;
2530 for (irel = internal_relocs; irel < irelend; irel ++)
2531 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
2532 && irel->r_offset > addr
2533 && irel->r_offset < toaddr)
2534 toaddr = irel->r_offset;
2537 fprintf (stderr, "relax region 0x%x to 0x%x align pad %d\n",
2538 addr, toaddr, align_pad_size);
2543 bfd_vma alignmoveto;
2545 alignmoveto = BFD_ALIGN (addr - align_pad_size, 1 << irelalign->r_addend);
2546 alignto = BFD_ALIGN (addr, 1 << irelalign->r_addend);
2548 if (alignmoveto < alignto)
2552 align_pad_size = alignto - alignmoveto;
2554 fprintf (stderr, "relax move region 0x%x to 0x%x delete size 0x%x\n",
2555 alignmoveto, toaddr, align_pad_size);
2557 if (!v850_elf_relax_delete_bytes (abfd, sec, alignmoveto,
2558 toaddr, align_pad_size))
2561 for (i = BFD_ALIGN (toaddr - align_pad_size, 1);
2562 (i + 1) < toaddr; i += 2)
2563 bfd_put_16 (abfd, NOP_OPCODE, contents + i);
2571 for (irel = internal_relocs; irel < irelend; irel++)
2578 Elf_Internal_Rela * hi_irelfn;
2579 Elf_Internal_Rela * lo_irelfn;
2580 Elf_Internal_Rela * irelcall;
2581 bfd_signed_vma foff;
2583 if (! (irel->r_offset >= addr && irel->r_offset < toaddr
2584 && (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL
2585 || ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)))
2589 fprintf (stderr, "relax check r_info 0x%x r_offset 0x%x r_addend 0x%x\n",
2595 /* Get the section contents. */
2596 if (contents == NULL)
2598 if (elf_section_data (sec)->this_hdr.contents != NULL)
2599 contents = elf_section_data (sec)->this_hdr.contents;
2602 contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
2603 if (contents == NULL)
2606 free_contents = contents;
2608 if (! bfd_get_section_contents (abfd, sec, contents,
2609 (file_ptr) 0, sec->_raw_size))
2614 /* Read this BFD's symbols if we haven't done so already. */
2615 if (extsyms == NULL)
2617 /* Get cached copy if it exists. */
2618 if (symtab_hdr->contents != NULL)
2619 extsyms = (Elf32_External_Sym *) symtab_hdr->contents;
2622 /* Go get them off disk. */
2625 amt = symtab_hdr->sh_info;
2626 amt *= sizeof (Elf32_External_Sym);
2627 extsyms = (Elf32_External_Sym *) bfd_malloc (amt);
2628 if (extsyms == NULL)
2630 free_extsyms = extsyms;
2631 if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
2632 || bfd_bread ((PTR) extsyms, amt, abfd) != amt)
2636 if (shndx_hdr->sh_size != 0)
2640 amt = symtab_hdr->sh_info;
2641 amt *= sizeof (Elf_External_Sym_Shndx);
2642 shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
2643 if (shndx_buf == NULL)
2645 if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
2646 || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt)
2651 laddr = irel->r_offset;
2653 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGCALL)
2655 /* Check code for -mlong-calls output. */
2656 if (laddr + 16 <= (bfd_vma) sec->_raw_size)
2658 insn[0] = bfd_get_16 (abfd, contents + laddr);
2659 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
2660 insn[2] = bfd_get_32 (abfd, contents + laddr + 8);
2661 insn[3] = bfd_get_16 (abfd, contents + laddr + 12);
2662 insn[4] = bfd_get_16 (abfd, contents + laddr + 14);
2664 if ((insn[0] & MOVHI_MASK) != MOVHI
2665 || MOVHI_R1 (insn[0]) != 0)
2669 && ((insn[1] & MOVEA_MASK) != MOVEA
2670 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
2674 && (insn[2] & JARL_4_MASK) != JARL_4)
2678 && ((insn[3] & ADD_I_MASK) != ADD_I
2679 || ADD_I5 (insn[3]) != 4
2680 || JARL_R2 (insn[2]) != ADD_R2 (insn[3])))
2684 && ((insn[4] & JMP_R_MASK) != JMP_R
2685 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[4])))
2690 ((*_bfd_error_handler)
2691 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insns",
2692 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
2699 ((*_bfd_error_handler)
2700 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized insn 0x%x",
2701 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
2706 /* Get the reloc for the address from which the register is
2707 being loaded. This reloc will tell us which function is
2708 actually being called. */
2709 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
2710 if (hi_irelfn->r_offset == laddr + 2
2711 && ELF32_R_TYPE (hi_irelfn->r_info)
2712 == (int) R_V850_HI16_S)
2715 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
2716 if (lo_irelfn->r_offset == laddr + 6
2717 && ELF32_R_TYPE (lo_irelfn->r_info)
2718 == (int) R_V850_LO16)
2721 for (irelcall = internal_relocs; irelcall < irelend; irelcall ++)
2722 if (irelcall->r_offset == laddr + 8
2723 && ELF32_R_TYPE (irelcall->r_info)
2724 == (int) R_V850_22_PCREL)
2727 if ( hi_irelfn == irelend
2728 || lo_irelfn == irelend
2729 || irelcall == irelend)
2731 ((*_bfd_error_handler)
2732 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc",
2733 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
2738 if (ELF32_R_SYM (irelcall->r_info) < symtab_hdr->sh_info)
2740 unsigned int r_index;
2741 Elf_Internal_Sym isym;
2743 Elf32_External_Sym * esym;
2744 Elf_External_Sym_Shndx * shndx;
2746 /* A local symbol. */
2747 r_index = ELF32_R_SYM (irelcall->r_info);
2748 esym = extsyms + r_index;
2749 shndx = shndx_buf + (shndx_buf ? r_index : 0);
2750 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
2752 if (isym.st_shndx == SHN_UNDEF)
2753 sym_sec = bfd_und_section_ptr;
2754 else if (isym.st_shndx == SHN_ABS)
2755 sym_sec = bfd_abs_section_ptr;
2756 else if (isym.st_shndx == SHN_COMMON)
2757 sym_sec = bfd_com_section_ptr;
2759 sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx);
2760 symval = isym.st_value;
2765 struct elf_link_hash_entry * h;
2767 /* An external symbol. */
2768 indx = ELF32_R_SYM (irelcall->r_info) - symtab_hdr->sh_info;
2769 h = elf_sym_hashes (abfd)[indx];
2770 BFD_ASSERT (h != NULL);
2772 if ( h->root.type != bfd_link_hash_defined
2773 && h->root.type != bfd_link_hash_defweak)
2774 /* This appears to be a reference to an undefined
2775 symbol. Just ignore it--it will be caught by the
2776 regular reloc processing. */
2779 symval = h->root.u.def.value;
2782 if (symval + irelcall->r_addend != irelcall->r_offset + 4)
2784 ((*_bfd_error_handler)
2785 ("%s: 0x%lx: warning: R_V850_LONGCALL points to unrecognized reloc 0x%lx",
2786 bfd_get_filename (abfd), (unsigned long) irel->r_offset, irelcall->r_offset ));
2791 /* Get the value of the symbol referred to by the reloc. */
2792 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
2794 unsigned int r_index;
2795 Elf_Internal_Sym isym;
2797 Elf32_External_Sym * esym;
2798 Elf_External_Sym_Shndx * shndx;
2800 /* A local symbol. */
2801 r_index = ELF32_R_SYM (irel->r_info);
2802 esym = extsyms + r_index;
2803 shndx = shndx_buf + (shndx_buf ? r_index : 0);
2804 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
2806 if (isym.st_shndx == SHN_UNDEF)
2807 sym_sec = bfd_und_section_ptr;
2808 else if (isym.st_shndx == SHN_ABS)
2809 sym_sec = bfd_abs_section_ptr;
2810 else if (isym.st_shndx == SHN_COMMON)
2811 sym_sec = bfd_com_section_ptr;
2813 sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx);
2814 symval = (isym.st_value
2815 + sym_sec->output_section->vma
2816 + sym_sec->output_offset);
2821 struct elf_link_hash_entry * h;
2823 /* An external symbol. */
2824 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
2825 h = elf_sym_hashes (abfd)[indx];
2826 BFD_ASSERT (h != NULL);
2828 if ( h->root.type != bfd_link_hash_defined
2829 && h->root.type != bfd_link_hash_defweak)
2830 /* This appears to be a reference to an undefined
2831 symbol. Just ignore it--it will be caught by the
2832 regular reloc processing. */
2835 symval = (h->root.u.def.value
2836 + h->root.u.def.section->output_section->vma
2837 + h->root.u.def.section->output_offset);
2840 addend = irel->r_addend;
2842 foff = (symval + addend
2844 + sec->output_section->vma
2845 + sec->output_offset
2848 fprintf (stderr, "relax longcall r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
2851 + sec->output_section->vma
2852 + sec->output_offset),
2853 symval, addend, foff);
2856 if (foff < -0x100000 || foff >= 0x100000)
2857 /* After all that work, we can't shorten this function call. */
2860 /* For simplicity of coding, we are going to modify the section
2861 contents, the section relocs, and the BFD symbol table. We
2862 must tell the rest of the code not to free up this
2863 information. It would be possible to instead create a table
2864 of changes which have to be made, as is done in coff-mips.c;
2865 that would be more work, but would require less memory when
2866 the linker is run. */
2867 elf_section_data (sec)->relocs = internal_relocs;
2870 elf_section_data (sec)->this_hdr.contents = contents;
2871 free_contents = NULL;
2873 symtab_hdr->contents = (bfd_byte *) extsyms;
2874 free_extsyms = NULL;
2876 /* Replace the long call with a jarl. */
2877 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_22_PCREL);
2881 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
2882 /* If this needs to be changed because of future relaxing,
2883 it will be handled here like other internal IND12W
2886 0x00000780 | (JARL_R2 (insn[2])<<11) | ((addend << 16) & 0xffff) | ((addend >> 16) & 0xf),
2887 contents + irel->r_offset);
2889 /* We can't fully resolve this yet, because the external
2890 symbol value may be changed by future relaxing.
2891 We let the final link phase handle it. */
2892 bfd_put_32 (abfd, 0x00000780 | (JARL_R2 (insn[2])<<11),
2893 contents + irel->r_offset);
2896 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
2898 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
2900 ELF32_R_INFO (ELF32_R_SYM (irelcall->r_info), R_V850_NONE);
2902 if (! v850_elf_relax_delete_bytes (abfd, sec,
2903 irel->r_offset + 4, toaddr, 12))
2906 align_pad_size += 12;
2908 else if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_LONGJUMP)
2910 /* Check code for -mlong-jumps output. */
2911 if (laddr + 10 <= (bfd_vma) sec->_raw_size)
2913 insn[0] = bfd_get_16 (abfd, contents + laddr);
2914 insn[1] = bfd_get_16 (abfd, contents + laddr + 4);
2915 insn[2] = bfd_get_16 (abfd, contents + laddr + 8);
2917 if ((insn[0] & MOVHI_MASK) != MOVHI
2918 || MOVHI_R1 (insn[0]) != 0)
2922 && ((insn[1] & MOVEA_MASK) != MOVEA
2923 || MOVHI_R2 (insn[0]) != MOVEA_R1 (insn[1])))
2927 && ((insn[2] & JMP_R_MASK) != JMP_R
2928 || MOVEA_R2 (insn[1]) != JMP_R1 (insn[2])))
2933 ((*_bfd_error_handler)
2934 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insns",
2935 bfd_get_filename (abfd), (unsigned long) irel->r_offset));
2942 ((*_bfd_error_handler)
2943 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized insn 0x%x",
2944 bfd_get_filename (abfd), (unsigned long) irel->r_offset+no_match, insn[no_match]));
2949 /* Get the reloc for the address from which the register is
2950 being loaded. This reloc will tell us which function is
2951 actually being called. */
2952 for (hi_irelfn = internal_relocs; hi_irelfn < irelend; hi_irelfn ++)
2953 if (hi_irelfn->r_offset == laddr + 2
2954 && ELF32_R_TYPE (hi_irelfn->r_info) == (int) R_V850_HI16_S)
2957 for (lo_irelfn = internal_relocs; lo_irelfn < irelend; lo_irelfn ++)
2958 if (lo_irelfn->r_offset == laddr + 6
2959 && ELF32_R_TYPE (lo_irelfn->r_info) == (int) R_V850_LO16)
2962 if ( hi_irelfn == irelend
2963 || lo_irelfn == irelend)
2965 ((*_bfd_error_handler)
2966 ("%s: 0x%lx: warning: R_V850_LONGJUMP points to unrecognized reloc",
2967 bfd_get_filename (abfd), (unsigned long) irel->r_offset ));
2972 /* Get the value of the symbol referred to by the reloc. */
2973 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
2975 unsigned int r_index;
2976 Elf_Internal_Sym isym;
2978 Elf32_External_Sym * esym;
2979 Elf_External_Sym_Shndx * shndx;
2981 /* A local symbol. */
2982 r_index = ELF32_R_SYM (irel->r_info);
2983 esym = extsyms + r_index;
2984 shndx = shndx_buf + (shndx_buf ? r_index : 0);
2985 bfd_elf32_swap_symbol_in (abfd, esym, shndx, & isym);
2987 if (isym.st_shndx == SHN_UNDEF)
2988 sym_sec = bfd_und_section_ptr;
2989 else if (isym.st_shndx == SHN_ABS)
2990 sym_sec = bfd_abs_section_ptr;
2991 else if (isym.st_shndx == SHN_COMMON)
2992 sym_sec = bfd_com_section_ptr;
2994 sym_sec = bfd_section_from_elf_index (abfd, isym.st_shndx);
2995 symval = (isym.st_value
2996 + sym_sec->output_section->vma
2997 + sym_sec->output_offset);
3000 char * name = bfd_elf_string_from_elf_section
3001 (abfd, symtab_hdr->sh_link, isym.st_name);
3003 fprintf (stderr, "relax long jump local: sec: %s, sym: %s (%d), value: %x + %x + %x addend %x\n",
3004 sym_sec->name, name, isym.st_name,
3005 sym_sec->output_section->vma, sym_sec->output_offset,
3006 isym.st_value, irel->r_addend);
3013 struct elf_link_hash_entry * h;
3015 /* An external symbol. */
3016 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
3017 h = elf_sym_hashes (abfd)[indx];
3018 BFD_ASSERT (h != NULL);
3020 if ( h->root.type != bfd_link_hash_defined
3021 && h->root.type != bfd_link_hash_defweak)
3022 /* This appears to be a reference to an undefined
3023 symbol. Just ignore it--it will be caught by the
3024 regular reloc processing. */
3027 symval = (h->root.u.def.value
3028 + h->root.u.def.section->output_section->vma
3029 + h->root.u.def.section->output_offset);
3032 "relax longjump defined: sec: %s, name: %s, value: %x + %x + %x addend %x\n",
3033 sec->name, h->root.root.string, h->root.u.def.value,
3034 sec->output_section->vma, sec->output_offset, irel->r_addend);
3038 addend = irel->r_addend;
3040 foff = (symval + addend
3042 + sec->output_section->vma
3043 + sec->output_offset
3046 fprintf (stderr, "relax longjump r_offset 0x%x ptr 0x%x symbol 0x%x addend 0x%x distance 0x%x\n",
3049 + sec->output_section->vma
3050 + sec->output_offset),
3051 symval, addend, foff);
3053 if (foff < -0x100000 || foff >= 0x100000)
3054 /* After all that work, we can't shorten this function call. */
3057 /* For simplicity of coding, we are going to modify the section
3058 contents, the section relocs, and the BFD symbol table. We
3059 must tell the rest of the code not to free up this
3060 information. It would be possible to instead create a table
3061 of changes which have to be made, as is done in coff-mips.c;
3062 that would be more work, but would require less memory when
3063 the linker is run. */
3064 elf_section_data (sec)->relocs = internal_relocs;
3067 elf_section_data (sec)->this_hdr.contents = contents;
3068 free_contents = NULL;
3070 symtab_hdr->contents = (bfd_byte *) extsyms;
3071 free_extsyms = NULL;
3073 if (foff < -0x100 || foff >= 0x100)
3075 /* Replace the long jump with a jr. */
3078 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_22_PCREL);
3080 irel->r_addend = addend;
3083 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3084 /* If this needs to be changed because of future relaxing,
3085 it will be handled here like other internal IND12W
3088 0x00000780 | ((addend << 15) & 0xffff0000) | ((addend >> 17) & 0xf),
3089 contents + irel->r_offset);
3091 /* We can't fully resolve this yet, because the external
3092 symbol value may be changed by future relaxing.
3093 We let the final link phase handle it. */
3094 bfd_put_32 (abfd, 0x00000780, contents + irel->r_offset);
3097 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3099 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3100 if (!v850_elf_relax_delete_bytes (abfd, sec,
3101 irel->r_offset + 4, toaddr, 6))
3104 align_pad_size += 6;
3108 /* Replace the long jump with a br. */
3111 ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_V850_9_PCREL);
3113 irel->r_addend = addend;
3116 if (ELF32_R_SYM (hi_irelfn->r_info) < symtab_hdr->sh_info)
3117 /* If this needs to be changed because of future relaxing,
3118 it will be handled here like other internal IND12W
3121 0x0585 | ((addend << 10) & 0xf800) | ((addend << 3) & 0x0070),
3122 contents + irel->r_offset);
3124 /* We can't fully resolve this yet, because the external
3125 symbol value may be changed by future relaxing.
3126 We let the final link phase handle it. */
3127 bfd_put_16 (abfd, 0x0585, contents + irel->r_offset);
3130 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn->r_info), R_V850_NONE);
3132 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn->r_info), R_V850_NONE);
3133 if (!v850_elf_relax_delete_bytes (abfd, sec,
3134 irel->r_offset + 2, toaddr, 8))
3137 align_pad_size += 8;
3143 for (irel = internal_relocs; irel < irelend; irel++)
3145 if (ELF32_R_TYPE (irel->r_info) == (int) R_V850_ALIGN
3146 && irel->r_offset == toaddr)
3148 irel->r_offset -= align_pad_size;
3150 if (irelalign == NULL || irelalign->r_addend > irel->r_addend)
3161 fprintf (stderr, "relax pad %d shorten %d -> %d\n",
3164 sec->_cooked_size - align_pad_size);
3166 sec->_cooked_size -= align_pad_size;
3172 if (free_relocs != NULL)
3175 if (free_contents != NULL)
3176 free (free_contents);
3178 if (free_extsyms != NULL)
3179 free (free_extsyms);
3184 #define TARGET_LITTLE_SYM bfd_elf32_v850_vec
3185 #define TARGET_LITTLE_NAME "elf32-v850"
3186 #define ELF_ARCH bfd_arch_v850
3187 #define ELF_MACHINE_CODE EM_V850
3188 #define ELF_MACHINE_ALT1 EM_CYGNUS_V850
3189 #define ELF_MAXPAGESIZE 0x1000
3191 #define elf_info_to_howto v850_elf_info_to_howto_rela
3192 #define elf_info_to_howto_rel v850_elf_info_to_howto_rel
3194 #define elf_backend_check_relocs v850_elf_check_relocs
3195 #define elf_backend_relocate_section v850_elf_relocate_section
3196 #define elf_backend_object_p v850_elf_object_p
3197 #define elf_backend_final_write_processing v850_elf_final_write_processing
3198 #define elf_backend_section_from_bfd_section v850_elf_section_from_bfd_section
3199 #define elf_backend_symbol_processing v850_elf_symbol_processing
3200 #define elf_backend_add_symbol_hook v850_elf_add_symbol_hook
3201 #define elf_backend_link_output_symbol_hook v850_elf_link_output_symbol_hook
3202 #define elf_backend_section_from_shdr v850_elf_section_from_shdr
3203 #define elf_backend_fake_sections v850_elf_fake_sections
3204 #define elf_backend_gc_mark_hook v850_elf_gc_mark_hook
3205 #define elf_backend_gc_sweep_hook v850_elf_gc_sweep_hook
3207 #define elf_backend_can_gc_sections 1
3208 #define elf_backend_rela_normal 1
3210 #define bfd_elf32_bfd_is_local_label_name v850_elf_is_local_label_name
3211 #define bfd_elf32_bfd_reloc_type_lookup v850_elf_reloc_type_lookup
3212 #define bfd_elf32_bfd_merge_private_bfd_data v850_elf_merge_private_bfd_data
3213 #define bfd_elf32_bfd_set_private_flags v850_elf_set_private_flags
3214 #define bfd_elf32_bfd_print_private_bfd_data v850_elf_print_private_bfd_data
3215 #define bfd_elf32_bfd_relax_section v850_elf_relax_section
3217 #define elf_symbol_leading_char '_'
3219 #include "elf32-target.h"