projects / deliverable / binutils-gdb.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Fix relaxation in RX linker when --no-keep-memory is specified.
[deliverable/binutils-gdb.git] / bfd / elf32-rx.c
1 /* Renesas RX specific support for 32-bit ELF.
2 Copyright (C) 2008-2015 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
19
20 #include "sysdep.h"
21 #include "bfd.h"
22 #include "bfd_stdint.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/rx.h"
26 #include "libiberty.h"
27 #include "elf32-rx.h"
28
29 #define RX_OPCODE_BIG_ENDIAN 0
30
31 /* This is a meta-target that's used only with objcopy, to avoid the
32 endian-swap we would otherwise get. We check for this in
33 rx_elf_object_p(). */
34 const bfd_target rx_elf32_be_ns_vec;
35 const bfd_target rx_elf32_be_vec;
36
37 #ifdef DEBUG
38 char * rx_get_reloc (long);
39 void rx_dump_symtab (bfd *, void *, void *);
40 #endif
41
42 #define RXREL(n,sz,bit,shift,complain,pcrel) \
43 HOWTO (R_RX_##n, shift, sz, bit, pcrel, 0, complain_overflow_ ## complain, \
44 bfd_elf_generic_reloc, "R_RX_" #n, FALSE, 0, ~0, FALSE)
45
46 /* Note that the relocations around 0x7f are internal to this file;
47 feel free to move them as needed to avoid conflicts with published
48 relocation numbers. */
49
50 static reloc_howto_type rx_elf_howto_table [] =
51 {
52 RXREL (NONE, 3, 0, 0, dont, FALSE),
53 RXREL (DIR32, 2, 32, 0, signed, FALSE),
54 RXREL (DIR24S, 2, 24, 0, signed, FALSE),
55 RXREL (DIR16, 1, 16, 0, dont, FALSE),
56 RXREL (DIR16U, 1, 16, 0, unsigned, FALSE),
57 RXREL (DIR16S, 1, 16, 0, signed, FALSE),
58 RXREL (DIR8, 0, 8, 0, dont, FALSE),
59 RXREL (DIR8U, 0, 8, 0, unsigned, FALSE),
60 RXREL (DIR8S, 0, 8, 0, signed, FALSE),
61 RXREL (DIR24S_PCREL, 2, 24, 0, signed, TRUE),
62 RXREL (DIR16S_PCREL, 1, 16, 0, signed, TRUE),
63 RXREL (DIR8S_PCREL, 0, 8, 0, signed, TRUE),
64 RXREL (DIR16UL, 1, 16, 2, unsigned, FALSE),
65 RXREL (DIR16UW, 1, 16, 1, unsigned, FALSE),
66 RXREL (DIR8UL, 0, 8, 2, unsigned, FALSE),
67 RXREL (DIR8UW, 0, 8, 1, unsigned, FALSE),
68 RXREL (DIR32_REV, 1, 16, 0, dont, FALSE),
69 RXREL (DIR16_REV, 1, 16, 0, dont, FALSE),
70 RXREL (DIR3U_PCREL, 0, 3, 0, dont, TRUE),
71
72 EMPTY_HOWTO (0x13),
73 EMPTY_HOWTO (0x14),
74 EMPTY_HOWTO (0x15),
75 EMPTY_HOWTO (0x16),
76 EMPTY_HOWTO (0x17),
77 EMPTY_HOWTO (0x18),
78 EMPTY_HOWTO (0x19),
79 EMPTY_HOWTO (0x1a),
80 EMPTY_HOWTO (0x1b),
81 EMPTY_HOWTO (0x1c),
82 EMPTY_HOWTO (0x1d),
83 EMPTY_HOWTO (0x1e),
84 EMPTY_HOWTO (0x1f),
85
86 RXREL (RH_3_PCREL, 0, 3, 0, signed, TRUE),
87 RXREL (RH_16_OP, 1, 16, 0, signed, FALSE),
88 RXREL (RH_24_OP, 2, 24, 0, signed, FALSE),
89 RXREL (RH_32_OP, 2, 32, 0, signed, FALSE),
90 RXREL (RH_24_UNS, 2, 24, 0, unsigned, FALSE),
91 RXREL (RH_8_NEG, 0, 8, 0, signed, FALSE),
92 RXREL (RH_16_NEG, 1, 16, 0, signed, FALSE),
93 RXREL (RH_24_NEG, 2, 24, 0, signed, FALSE),
94 RXREL (RH_32_NEG, 2, 32, 0, signed, FALSE),
95 RXREL (RH_DIFF, 2, 32, 0, signed, FALSE),
96 RXREL (RH_GPRELB, 1, 16, 0, unsigned, FALSE),
97 RXREL (RH_GPRELW, 1, 16, 0, unsigned, FALSE),
98 RXREL (RH_GPRELL, 1, 16, 0, unsigned, FALSE),
99 RXREL (RH_RELAX, 0, 0, 0, dont, FALSE),
100
101 EMPTY_HOWTO (0x2e),
102 EMPTY_HOWTO (0x2f),
103 EMPTY_HOWTO (0x30),
104 EMPTY_HOWTO (0x31),
105 EMPTY_HOWTO (0x32),
106 EMPTY_HOWTO (0x33),
107 EMPTY_HOWTO (0x34),
108 EMPTY_HOWTO (0x35),
109 EMPTY_HOWTO (0x36),
110 EMPTY_HOWTO (0x37),
111 EMPTY_HOWTO (0x38),
112 EMPTY_HOWTO (0x39),
113 EMPTY_HOWTO (0x3a),
114 EMPTY_HOWTO (0x3b),
115 EMPTY_HOWTO (0x3c),
116 EMPTY_HOWTO (0x3d),
117 EMPTY_HOWTO (0x3e),
118 EMPTY_HOWTO (0x3f),
119 EMPTY_HOWTO (0x40),
120
121 RXREL (ABS32, 2, 32, 0, dont, FALSE),
122 RXREL (ABS24S, 2, 24, 0, signed, FALSE),
123 RXREL (ABS16, 1, 16, 0, dont, FALSE),
124 RXREL (ABS16U, 1, 16, 0, unsigned, FALSE),
125 RXREL (ABS16S, 1, 16, 0, signed, FALSE),
126 RXREL (ABS8, 0, 8, 0, dont, FALSE),
127 RXREL (ABS8U, 0, 8, 0, unsigned, FALSE),
128 RXREL (ABS8S, 0, 8, 0, signed, FALSE),
129 RXREL (ABS24S_PCREL, 2, 24, 0, signed, TRUE),
130 RXREL (ABS16S_PCREL, 1, 16, 0, signed, TRUE),
131 RXREL (ABS8S_PCREL, 0, 8, 0, signed, TRUE),
132 RXREL (ABS16UL, 1, 16, 0, unsigned, FALSE),
133 RXREL (ABS16UW, 1, 16, 0, unsigned, FALSE),
134 RXREL (ABS8UL, 0, 8, 0, unsigned, FALSE),
135 RXREL (ABS8UW, 0, 8, 0, unsigned, FALSE),
136 RXREL (ABS32_REV, 2, 32, 0, dont, FALSE),
137 RXREL (ABS16_REV, 1, 16, 0, dont, FALSE),
138
139 #define STACK_REL_P(x) ((x) <= R_RX_ABS16_REV && (x) >= R_RX_ABS32)
140
141 EMPTY_HOWTO (0x52),
142 EMPTY_HOWTO (0x53),
143 EMPTY_HOWTO (0x54),
144 EMPTY_HOWTO (0x55),
145 EMPTY_HOWTO (0x56),
146 EMPTY_HOWTO (0x57),
147 EMPTY_HOWTO (0x58),
148 EMPTY_HOWTO (0x59),
149 EMPTY_HOWTO (0x5a),
150 EMPTY_HOWTO (0x5b),
151 EMPTY_HOWTO (0x5c),
152 EMPTY_HOWTO (0x5d),
153 EMPTY_HOWTO (0x5e),
154 EMPTY_HOWTO (0x5f),
155 EMPTY_HOWTO (0x60),
156 EMPTY_HOWTO (0x61),
157 EMPTY_HOWTO (0x62),
158 EMPTY_HOWTO (0x63),
159 EMPTY_HOWTO (0x64),
160 EMPTY_HOWTO (0x65),
161 EMPTY_HOWTO (0x66),
162 EMPTY_HOWTO (0x67),
163 EMPTY_HOWTO (0x68),
164 EMPTY_HOWTO (0x69),
165 EMPTY_HOWTO (0x6a),
166 EMPTY_HOWTO (0x6b),
167 EMPTY_HOWTO (0x6c),
168 EMPTY_HOWTO (0x6d),
169 EMPTY_HOWTO (0x6e),
170 EMPTY_HOWTO (0x6f),
171 EMPTY_HOWTO (0x70),
172 EMPTY_HOWTO (0x71),
173 EMPTY_HOWTO (0x72),
174 EMPTY_HOWTO (0x73),
175 EMPTY_HOWTO (0x74),
176 EMPTY_HOWTO (0x75),
177 EMPTY_HOWTO (0x76),
178 EMPTY_HOWTO (0x77),
179
180 /* These are internal. */
181 /* A 5-bit unsigned displacement to a B/W/L address, at bit position 8/12. */
182 /* ---- ---- 4--- 3210. */
183 #define R_RX_RH_ABS5p8B 0x78
184 RXREL (RH_ABS5p8B, 0, 0, 0, dont, FALSE),
185 #define R_RX_RH_ABS5p8W 0x79
186 RXREL (RH_ABS5p8W, 0, 0, 0, dont, FALSE),
187 #define R_RX_RH_ABS5p8L 0x7a
188 RXREL (RH_ABS5p8L, 0, 0, 0, dont, FALSE),
189 /* A 5-bit unsigned displacement to a B/W/L address, at bit position 5/12. */
190 /* ---- -432 1--- 0---. */
191 #define R_RX_RH_ABS5p5B 0x7b
192 RXREL (RH_ABS5p5B, 0, 0, 0, dont, FALSE),
193 #define R_RX_RH_ABS5p5W 0x7c
194 RXREL (RH_ABS5p5W, 0, 0, 0, dont, FALSE),
195 #define R_RX_RH_ABS5p5L 0x7d
196 RXREL (RH_ABS5p5L, 0, 0, 0, dont, FALSE),
197 /* A 4-bit unsigned immediate at bit position 8. */
198 #define R_RX_RH_UIMM4p8 0x7e
199 RXREL (RH_UIMM4p8, 0, 0, 0, dont, FALSE),
200 /* A 4-bit negative unsigned immediate at bit position 8. */
201 #define R_RX_RH_UNEG4p8 0x7f
202 RXREL (RH_UNEG4p8, 0, 0, 0, dont, FALSE),
203 /* End of internal relocs. */
204
205 RXREL (SYM, 2, 32, 0, dont, FALSE),
206 RXREL (OPneg, 2, 32, 0, dont, FALSE),
207 RXREL (OPadd, 2, 32, 0, dont, FALSE),
208 RXREL (OPsub, 2, 32, 0, dont, FALSE),
209 RXREL (OPmul, 2, 32, 0, dont, FALSE),
210 RXREL (OPdiv, 2, 32, 0, dont, FALSE),
211 RXREL (OPshla, 2, 32, 0, dont, FALSE),
212 RXREL (OPshra, 2, 32, 0, dont, FALSE),
213 RXREL (OPsctsize, 2, 32, 0, dont, FALSE),
214 RXREL (OPscttop, 2, 32, 0, dont, FALSE),
215 RXREL (OPand, 2, 32, 0, dont, FALSE),
216 RXREL (OPor, 2, 32, 0, dont, FALSE),
217 RXREL (OPxor, 2, 32, 0, dont, FALSE),
218 RXREL (OPnot, 2, 32, 0, dont, FALSE),
219 RXREL (OPmod, 2, 32, 0, dont, FALSE),
220 RXREL (OPromtop, 2, 32, 0, dont, FALSE),
221 RXREL (OPramtop, 2, 32, 0, dont, FALSE)
222 };
223 \f
224 /* Map BFD reloc types to RX ELF reloc types. */
225
226 struct rx_reloc_map
227 {
228 bfd_reloc_code_real_type bfd_reloc_val;
229 unsigned int rx_reloc_val;
230 };
231
232 static const struct rx_reloc_map rx_reloc_map [] =
233 {
234 { BFD_RELOC_NONE, R_RX_NONE },
235 { BFD_RELOC_8, R_RX_DIR8S },
236 { BFD_RELOC_16, R_RX_DIR16S },
237 { BFD_RELOC_24, R_RX_DIR24S },
238 { BFD_RELOC_32, R_RX_DIR32 },
239 { BFD_RELOC_RX_16_OP, R_RX_DIR16 },
240 { BFD_RELOC_RX_DIR3U_PCREL, R_RX_DIR3U_PCREL },
241 { BFD_RELOC_8_PCREL, R_RX_DIR8S_PCREL },
242 { BFD_RELOC_16_PCREL, R_RX_DIR16S_PCREL },
243 { BFD_RELOC_24_PCREL, R_RX_DIR24S_PCREL },
244 { BFD_RELOC_RX_8U, R_RX_DIR8U },
245 { BFD_RELOC_RX_16U, R_RX_DIR16U },
246 { BFD_RELOC_RX_24U, R_RX_RH_24_UNS },
247 { BFD_RELOC_RX_NEG8, R_RX_RH_8_NEG },
248 { BFD_RELOC_RX_NEG16, R_RX_RH_16_NEG },
249 { BFD_RELOC_RX_NEG24, R_RX_RH_24_NEG },
250 { BFD_RELOC_RX_NEG32, R_RX_RH_32_NEG },
251 { BFD_RELOC_RX_DIFF, R_RX_RH_DIFF },
252 { BFD_RELOC_RX_GPRELB, R_RX_RH_GPRELB },
253 { BFD_RELOC_RX_GPRELW, R_RX_RH_GPRELW },
254 { BFD_RELOC_RX_GPRELL, R_RX_RH_GPRELL },
255 { BFD_RELOC_RX_RELAX, R_RX_RH_RELAX },
256 { BFD_RELOC_RX_SYM, R_RX_SYM },
257 { BFD_RELOC_RX_OP_SUBTRACT, R_RX_OPsub },
258 { BFD_RELOC_RX_OP_NEG, R_RX_OPneg },
259 { BFD_RELOC_RX_ABS8, R_RX_ABS8 },
260 { BFD_RELOC_RX_ABS16, R_RX_ABS16 },
261 { BFD_RELOC_RX_ABS16_REV, R_RX_ABS16_REV },
262 { BFD_RELOC_RX_ABS32, R_RX_ABS32 },
263 { BFD_RELOC_RX_ABS32_REV, R_RX_ABS32_REV },
264 { BFD_RELOC_RX_ABS16UL, R_RX_ABS16UL },
265 { BFD_RELOC_RX_ABS16UW, R_RX_ABS16UW },
266 { BFD_RELOC_RX_ABS16U, R_RX_ABS16U }
267 };
268
269 #define BIGE(abfd) ((abfd)->xvec->byteorder == BFD_ENDIAN_BIG)
270
271 static reloc_howto_type *
272 rx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
273 bfd_reloc_code_real_type code)
274 {
275 unsigned int i;
276
277 if (code == BFD_RELOC_RX_32_OP)
278 return rx_elf_howto_table + R_RX_DIR32;
279
280 for (i = ARRAY_SIZE (rx_reloc_map); i--;)
281 if (rx_reloc_map [i].bfd_reloc_val == code)
282 return rx_elf_howto_table + rx_reloc_map[i].rx_reloc_val;
283
284 return NULL;
285 }
286
287 static reloc_howto_type *
288 rx_reloc_name_lookup (bfd * abfd ATTRIBUTE_UNUSED, const char * r_name)
289 {
290 unsigned int i;
291
292 for (i = 0; i < ARRAY_SIZE (rx_elf_howto_table); i++)
293 if (rx_elf_howto_table[i].name != NULL
294 && strcasecmp (rx_elf_howto_table[i].name, r_name) == 0)
295 return rx_elf_howto_table + i;
296
297 return NULL;
298 }
299
300 /* Set the howto pointer for an RX ELF reloc. */
301
302 static void
303 rx_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED,
304 arelent * cache_ptr,
305 Elf_Internal_Rela * dst)
306 {
307 unsigned int r_type;
308
309 r_type = ELF32_R_TYPE (dst->r_info);
310 if (r_type >= (unsigned int) R_RX_max)
311 {
312 _bfd_error_handler (_("%B: invalid RX reloc number: %d"), abfd, r_type);
313 r_type = 0;
314 }
315 cache_ptr->howto = rx_elf_howto_table + r_type;
316 }
317 \f
318 static bfd_vma
319 get_symbol_value (const char * name,
320 bfd_reloc_status_type * status,
321 struct bfd_link_info * info,
322 bfd * input_bfd,
323 asection * input_section,
324 int offset)
325 {
326 bfd_vma value = 0;
327 struct bfd_link_hash_entry * h;
328
329 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
330
331 if (h == NULL
332 || (h->type != bfd_link_hash_defined
333 && h->type != bfd_link_hash_defweak))
334 * status = info->callbacks->undefined_symbol
335 (info, name, input_bfd, input_section, offset, TRUE);
336 else
337 value = (h->u.def.value
338 + h->u.def.section->output_section->vma
339 + h->u.def.section->output_offset);
340
341 return value;
342 }
343 static bfd_vma
344 get_symbol_value_maybe (const char * name,
345 struct bfd_link_info * info)
346 {
347 bfd_vma value = 0;
348 struct bfd_link_hash_entry * h;
349
350 h = bfd_link_hash_lookup (info->hash, name, FALSE, FALSE, TRUE);
351
352 if (h == NULL
353 || (h->type != bfd_link_hash_defined
354 && h->type != bfd_link_hash_defweak))
355 return 0;
356 else
357 value = (h->u.def.value
358 + h->u.def.section->output_section->vma
359 + h->u.def.section->output_offset);
360
361 return value;
362 }
363
364 static bfd_vma
365 get_gp (bfd_reloc_status_type * status,
366 struct bfd_link_info * info,
367 bfd * abfd,
368 asection * sec,
369 int offset)
370 {
371 static bfd_boolean cached = FALSE;
372 static bfd_vma cached_value = 0;
373
374 if (!cached)
375 {
376 cached_value = get_symbol_value ("__gp", status, info, abfd, sec, offset);
377 cached = TRUE;
378 }
379 return cached_value;
380 }
381
382 static bfd_vma
383 get_romstart (bfd_reloc_status_type * status,
384 struct bfd_link_info * info,
385 bfd * abfd,
386 asection * sec,
387 int offset)
388 {
389 static bfd_boolean cached = FALSE;
390 static bfd_vma cached_value = 0;
391
392 if (!cached)
393 {
394 cached_value = get_symbol_value ("_start", status, info, abfd, sec, offset);
395 cached = TRUE;
396 }
397 return cached_value;
398 }
399
400 static bfd_vma
401 get_ramstart (bfd_reloc_status_type * status,
402 struct bfd_link_info * info,
403 bfd * abfd,
404 asection * sec,
405 int offset)
406 {
407 static bfd_boolean cached = FALSE;
408 static bfd_vma cached_value = 0;
409
410 if (!cached)
411 {
412 cached_value = get_symbol_value ("__datastart", status, info, abfd, sec, offset);
413 cached = TRUE;
414 }
415 return cached_value;
416 }
417
418 #define NUM_STACK_ENTRIES 16
419 static int32_t rx_stack [ NUM_STACK_ENTRIES ];
420 static unsigned int rx_stack_top;
421
422 #define RX_STACK_PUSH(val) \
423 do \
424 { \
425 if (rx_stack_top < NUM_STACK_ENTRIES) \
426 rx_stack [rx_stack_top ++] = (val); \
427 else \
428 r = bfd_reloc_dangerous; \
429 } \
430 while (0)
431
432 #define RX_STACK_POP(dest) \
433 do \
434 { \
435 if (rx_stack_top > 0) \
436 (dest) = rx_stack [-- rx_stack_top]; \
437 else \
438 (dest) = 0, r = bfd_reloc_dangerous; \
439 } \
440 while (0)
441
442 /* Relocate an RX ELF section.
443 There is some attempt to make this function usable for many architectures,
444 both USE_REL and USE_RELA ['twould be nice if such a critter existed],
445 if only to serve as a learning tool.
446
447 The RELOCATE_SECTION function is called by the new ELF backend linker
448 to handle the relocations for a section.
449
450 The relocs are always passed as Rela structures; if the section
451 actually uses Rel structures, the r_addend field will always be
452 zero.
453
454 This function is responsible for adjusting the section contents as
455 necessary, and (if using Rela relocs and generating a relocatable
456 output file) adjusting the reloc addend as necessary.
457
458 This function does not have to worry about setting the reloc
459 address or the reloc symbol index.
460
461 LOCAL_SYMS is a pointer to the swapped in local symbols.
462
463 LOCAL_SECTIONS is an array giving the section in the input file
464 corresponding to the st_shndx field of each local symbol.
465
466 The global hash table entry for the global symbols can be found
467 via elf_sym_hashes (input_bfd).
468
469 When generating relocatable output, this function must handle
470 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
471 going to be the section symbol corresponding to the output
472 section, which means that the addend must be adjusted
473 accordingly. */
474
475 static bfd_boolean
476 rx_elf_relocate_section
477 (bfd * output_bfd,
478 struct bfd_link_info * info,
479 bfd * input_bfd,
480 asection * input_section,
481 bfd_byte * contents,
482 Elf_Internal_Rela * relocs,
483 Elf_Internal_Sym * local_syms,
484 asection ** local_sections)
485 {
486 Elf_Internal_Shdr * symtab_hdr;
487 struct elf_link_hash_entry ** sym_hashes;
488 Elf_Internal_Rela * rel;
489 Elf_Internal_Rela * relend;
490 bfd_boolean pid_mode;
491 bfd_boolean saw_subtract = FALSE;
492 const char * table_default_cache = NULL;
493 bfd_vma table_start_cache = 0;
494 bfd_vma table_end_cache = 0;
495
496 if (elf_elfheader (output_bfd)->e_flags & E_FLAG_RX_PID)
497 pid_mode = TRUE;
498 else
499 pid_mode = FALSE;
500
501 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
502 sym_hashes = elf_sym_hashes (input_bfd);
503 relend = relocs + input_section->reloc_count;
504 for (rel = relocs; rel < relend; rel ++)
505 {
506 reloc_howto_type * howto;
507 unsigned long r_symndx;
508 Elf_Internal_Sym * sym;
509 asection * sec;
510 struct elf_link_hash_entry * h;
511 bfd_vma relocation;
512 bfd_reloc_status_type r;
513 const char * name = NULL;
514 bfd_boolean unresolved_reloc = TRUE;
515 int r_type;
516
517 r_type = ELF32_R_TYPE (rel->r_info);
518 r_symndx = ELF32_R_SYM (rel->r_info);
519
520 howto = rx_elf_howto_table + ELF32_R_TYPE (rel->r_info);
521 h = NULL;
522 sym = NULL;
523 sec = NULL;
524 relocation = 0;
525
526 if (rx_stack_top == 0)
527 saw_subtract = FALSE;
528
529 if (r_symndx < symtab_hdr->sh_info)
530 {
531 sym = local_syms + r_symndx;
532 sec = local_sections [r_symndx];
533 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, & sec, rel);
534
535 name = bfd_elf_string_from_elf_section
536 (input_bfd, symtab_hdr->sh_link, sym->st_name);
537 name = (sym->st_name == 0) ? bfd_section_name (input_bfd, sec) : name;
538 }
539 else
540 {
541 bfd_boolean warned, ignored;
542
543 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
544 r_symndx, symtab_hdr, sym_hashes, h,
545 sec, relocation, unresolved_reloc,
546 warned, ignored);
547
548 name = h->root.root.string;
549 }
550
551 if (strncmp (name, "$tableentry$default$", 20) == 0)
552 {
553 bfd_vma entry_vma;
554 int idx;
555 char *buf;
556 bfd_reloc_status_type tstat = 0;
557
558 if (table_default_cache != name)
559 {
560
561 /* All relocs for a given table should be to the same
562 (weak) default symbol) so we can use it to detect a
563 cache miss. We use the offset into the table to find
564 the "real" symbol. Calculate and store the table's
565 offset here. */
566
567 table_default_cache = name;
568
569 /* We have already done error checking in rx_table_find(). */
570
571 buf = (char *) malloc (13 + strlen (name + 20));
572
573 sprintf (buf, "$tablestart$%s", name + 20);
574 tstat = 0;
575 table_start_cache = get_symbol_value (buf,
576 &tstat,
577 info,
578 input_bfd,
579 input_section,
580 rel->r_offset);
581
582 sprintf (buf, "$tableend$%s", name + 20);
583 tstat = 0;
584 table_end_cache = get_symbol_value (buf,
585 &tstat,
586 info,
587 input_bfd,
588 input_section,
589 rel->r_offset);
590
591 free (buf);
592 }
593
594 entry_vma = (input_section->output_section->vma
595 + input_section->output_offset
596 + rel->r_offset);
597
598 if (table_end_cache <= entry_vma || entry_vma < table_start_cache)
599 {
600 _bfd_error_handler (_("%B:%A: table entry %s outside table"),
601 input_bfd, input_section,
602 name);
603 }
604 else if ((int) (entry_vma - table_start_cache) % 4)
605 {
606 _bfd_error_handler (_("%B:%A: table entry %s not word-aligned within table"),
607 input_bfd, input_section,
608 name);
609 }
610 else
611 {
612 idx = (int) (entry_vma - table_start_cache) / 4;
613
614 /* This will look like $tableentry$<N>$<name> */
615 buf = (char *) malloc (12 + 20 + strlen (name + 20));
616 sprintf (buf, "$tableentry$%d$%s", idx, name + 20);
617
618 h = (struct elf_link_hash_entry *) bfd_link_hash_lookup (info->hash, buf, FALSE, FALSE, TRUE);
619
620 if (h)
621 {
622 relocation = (h->root.u.def.value
623 + h->root.u.def.section->output_section->vma
624 + h->root.u.def.section->output_offset);;
625 }
626
627 free (buf);
628 }
629 }
630
631 if (sec != NULL && discarded_section (sec))
632 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
633 rel, 1, relend, howto, 0, contents);
634
635 if (bfd_link_relocatable (info))
636 {
637 /* This is a relocatable link. We don't have to change
638 anything, unless the reloc is against a section symbol,
639 in which case we have to adjust according to where the
640 section symbol winds up in the output section. */
641 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
642 rel->r_addend += sec->output_offset;
643 continue;
644 }
645
646 if (h != NULL && h->root.type == bfd_link_hash_undefweak)
647 /* If the symbol is undefined and weak
648 then the relocation resolves to zero. */
649 relocation = 0;
650 else
651 {
652 if (howto->pc_relative)
653 {
654 relocation -= (input_section->output_section->vma
655 + input_section->output_offset
656 + rel->r_offset);
657 if (r_type != R_RX_RH_3_PCREL
658 && r_type != R_RX_DIR3U_PCREL)
659 relocation ++;
660 }
661
662 relocation += rel->r_addend;
663 }
664
665 r = bfd_reloc_ok;
666
667 #define RANGE(a,b) if (a > (long) relocation || (long) relocation > b) r = bfd_reloc_overflow
668 #define ALIGN(m) if (relocation & m) r = bfd_reloc_other;
669 #define OP(i) (contents[rel->r_offset + (i)])
670 #define WARN_REDHAT(type) \
671 _bfd_error_handler (_("%B:%A: Warning: deprecated Red Hat reloc " type " detected against: %s."), \
672 input_bfd, input_section, name)
673
674 /* Check for unsafe relocs in PID mode. These are any relocs where
675 an absolute address is being computed. There are special cases
676 for relocs against symbols that are known to be referenced in
677 crt0.o before the PID base address register has been initialised. */
678 #define UNSAFE_FOR_PID \
679 do \
680 { \
681 if (pid_mode \
682 && sec != NULL \
683 && sec->flags & SEC_READONLY \
684 && !(input_section->flags & SEC_DEBUGGING) \
685 && strcmp (name, "__pid_base") != 0 \
686 && strcmp (name, "__gp") != 0 \
687 && strcmp (name, "__romdatastart") != 0 \
688 && !saw_subtract) \
689 _bfd_error_handler (_("%B(%A): unsafe PID relocation %s at 0x%08lx (against %s in %s)"), \
690 input_bfd, input_section, howto->name, \
691 input_section->output_section->vma + input_section->output_offset + rel->r_offset, \
692 name, sec->name); \
693 } \
694 while (0)
695
696 /* Opcode relocs are always big endian. Data relocs are bi-endian. */
697 switch (r_type)
698 {
699 case R_RX_NONE:
700 break;
701
702 case R_RX_RH_RELAX:
703 break;
704
705 case R_RX_RH_3_PCREL:
706 WARN_REDHAT ("RX_RH_3_PCREL");
707 RANGE (3, 10);
708 OP (0) &= 0xf8;
709 OP (0) |= relocation & 0x07;
710 break;
711
712 case R_RX_RH_8_NEG:
713 WARN_REDHAT ("RX_RH_8_NEG");
714 relocation = - relocation;
715 case R_RX_DIR8S_PCREL:
716 UNSAFE_FOR_PID;
717 RANGE (-128, 127);
718 OP (0) = relocation;
719 break;
720
721 case R_RX_DIR8S:
722 UNSAFE_FOR_PID;
723 RANGE (-128, 255);
724 OP (0) = relocation;
725 break;
726
727 case R_RX_DIR8U:
728 UNSAFE_FOR_PID;
729 RANGE (0, 255);
730 OP (0) = relocation;
731 break;
732
733 case R_RX_RH_16_NEG:
734 WARN_REDHAT ("RX_RH_16_NEG");
735 relocation = - relocation;
736 case R_RX_DIR16S_PCREL:
737 UNSAFE_FOR_PID;
738 RANGE (-32768, 32767);
739 #if RX_OPCODE_BIG_ENDIAN
740 #else
741 OP (0) = relocation;
742 OP (1) = relocation >> 8;
743 #endif
744 break;
745
746 case R_RX_RH_16_OP:
747 WARN_REDHAT ("RX_RH_16_OP");
748 UNSAFE_FOR_PID;
749 RANGE (-32768, 32767);
750 #if RX_OPCODE_BIG_ENDIAN
751 OP (1) = relocation;
752 OP (0) = relocation >> 8;
753 #else
754 OP (0) = relocation;
755 OP (1) = relocation >> 8;
756 #endif
757 break;
758
759 case R_RX_DIR16S:
760 UNSAFE_FOR_PID;
761 RANGE (-32768, 65535);
762 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
763 {
764 OP (1) = relocation;
765 OP (0) = relocation >> 8;
766 }
767 else
768 {
769 OP (0) = relocation;
770 OP (1) = relocation >> 8;
771 }
772 break;
773
774 case R_RX_DIR16U:
775 UNSAFE_FOR_PID;
776 RANGE (0, 65536);
777 #if RX_OPCODE_BIG_ENDIAN
778 OP (1) = relocation;
779 OP (0) = relocation >> 8;
780 #else
781 OP (0) = relocation;
782 OP (1) = relocation >> 8;
783 #endif
784 break;
785
786 case R_RX_DIR16:
787 UNSAFE_FOR_PID;
788 RANGE (-32768, 65536);
789 #if RX_OPCODE_BIG_ENDIAN
790 OP (1) = relocation;
791 OP (0) = relocation >> 8;
792 #else
793 OP (0) = relocation;
794 OP (1) = relocation >> 8;
795 #endif
796 break;
797
798 case R_RX_DIR16_REV:
799 UNSAFE_FOR_PID;
800 RANGE (-32768, 65536);
801 #if RX_OPCODE_BIG_ENDIAN
802 OP (0) = relocation;
803 OP (1) = relocation >> 8;
804 #else
805 OP (1) = relocation;
806 OP (0) = relocation >> 8;
807 #endif
808 break;
809
810 case R_RX_DIR3U_PCREL:
811 RANGE (3, 10);
812 OP (0) &= 0xf8;
813 OP (0) |= relocation & 0x07;
814 break;
815
816 case R_RX_RH_24_NEG:
817 UNSAFE_FOR_PID;
818 WARN_REDHAT ("RX_RH_24_NEG");
819 relocation = - relocation;
820 case R_RX_DIR24S_PCREL:
821 RANGE (-0x800000, 0x7fffff);
822 #if RX_OPCODE_BIG_ENDIAN
823 OP (2) = relocation;
824 OP (1) = relocation >> 8;
825 OP (0) = relocation >> 16;
826 #else
827 OP (0) = relocation;
828 OP (1) = relocation >> 8;
829 OP (2) = relocation >> 16;
830 #endif
831 break;
832
833 case R_RX_RH_24_OP:
834 UNSAFE_FOR_PID;
835 WARN_REDHAT ("RX_RH_24_OP");
836 RANGE (-0x800000, 0x7fffff);
837 #if RX_OPCODE_BIG_ENDIAN
838 OP (2) = relocation;
839 OP (1) = relocation >> 8;
840 OP (0) = relocation >> 16;
841 #else
842 OP (0) = relocation;
843 OP (1) = relocation >> 8;
844 OP (2) = relocation >> 16;
845 #endif
846 break;
847
848 case R_RX_DIR24S:
849 UNSAFE_FOR_PID;
850 RANGE (-0x800000, 0x7fffff);
851 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
852 {
853 OP (2) = relocation;
854 OP (1) = relocation >> 8;
855 OP (0) = relocation >> 16;
856 }
857 else
858 {
859 OP (0) = relocation;
860 OP (1) = relocation >> 8;
861 OP (2) = relocation >> 16;
862 }
863 break;
864
865 case R_RX_RH_24_UNS:
866 UNSAFE_FOR_PID;
867 WARN_REDHAT ("RX_RH_24_UNS");
868 RANGE (0, 0xffffff);
869 #if RX_OPCODE_BIG_ENDIAN
870 OP (2) = relocation;
871 OP (1) = relocation >> 8;
872 OP (0) = relocation >> 16;
873 #else
874 OP (0) = relocation;
875 OP (1) = relocation >> 8;
876 OP (2) = relocation >> 16;
877 #endif
878 break;
879
880 case R_RX_RH_32_NEG:
881 UNSAFE_FOR_PID;
882 WARN_REDHAT ("RX_RH_32_NEG");
883 relocation = - relocation;
884 #if RX_OPCODE_BIG_ENDIAN
885 OP (3) = relocation;
886 OP (2) = relocation >> 8;
887 OP (1) = relocation >> 16;
888 OP (0) = relocation >> 24;
889 #else
890 OP (0) = relocation;
891 OP (1) = relocation >> 8;
892 OP (2) = relocation >> 16;
893 OP (3) = relocation >> 24;
894 #endif
895 break;
896
897 case R_RX_RH_32_OP:
898 UNSAFE_FOR_PID;
899 WARN_REDHAT ("RX_RH_32_OP");
900 #if RX_OPCODE_BIG_ENDIAN
901 OP (3) = relocation;
902 OP (2) = relocation >> 8;
903 OP (1) = relocation >> 16;
904 OP (0) = relocation >> 24;
905 #else
906 OP (0) = relocation;
907 OP (1) = relocation >> 8;
908 OP (2) = relocation >> 16;
909 OP (3) = relocation >> 24;
910 #endif
911 break;
912
913 case R_RX_DIR32:
914 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
915 {
916 OP (3) = relocation;
917 OP (2) = relocation >> 8;
918 OP (1) = relocation >> 16;
919 OP (0) = relocation >> 24;
920 }
921 else
922 {
923 OP (0) = relocation;
924 OP (1) = relocation >> 8;
925 OP (2) = relocation >> 16;
926 OP (3) = relocation >> 24;
927 }
928 break;
929
930 case R_RX_DIR32_REV:
931 if (BIGE (output_bfd))
932 {
933 OP (0) = relocation;
934 OP (1) = relocation >> 8;
935 OP (2) = relocation >> 16;
936 OP (3) = relocation >> 24;
937 }
938 else
939 {
940 OP (3) = relocation;
941 OP (2) = relocation >> 8;
942 OP (1) = relocation >> 16;
943 OP (0) = relocation >> 24;
944 }
945 break;
946
947 case R_RX_RH_DIFF:
948 {
949 bfd_vma val;
950 WARN_REDHAT ("RX_RH_DIFF");
951 val = bfd_get_32 (output_bfd, & OP (0));
952 val -= relocation;
953 bfd_put_32 (output_bfd, val, & OP (0));
954 }
955 break;
956
957 case R_RX_RH_GPRELB:
958 WARN_REDHAT ("RX_RH_GPRELB");
959 relocation -= get_gp (&r, info, input_bfd, input_section, rel->r_offset);
960 RANGE (0, 65535);
961 #if RX_OPCODE_BIG_ENDIAN
962 OP (1) = relocation;
963 OP (0) = relocation >> 8;
964 #else
965 OP (0) = relocation;
966 OP (1) = relocation >> 8;
967 #endif
968 break;
969
970 case R_RX_RH_GPRELW:
971 WARN_REDHAT ("RX_RH_GPRELW");
972 relocation -= get_gp (&r, info, input_bfd, input_section, rel->r_offset);
973 ALIGN (1);
974 relocation >>= 1;
975 RANGE (0, 65535);
976 #if RX_OPCODE_BIG_ENDIAN
977 OP (1) = relocation;
978 OP (0) = relocation >> 8;
979 #else
980 OP (0) = relocation;
981 OP (1) = relocation >> 8;
982 #endif
983 break;
984
985 case R_RX_RH_GPRELL:
986 WARN_REDHAT ("RX_RH_GPRELL");
987 relocation -= get_gp (&r, info, input_bfd, input_section, rel->r_offset);
988 ALIGN (3);
989 relocation >>= 2;
990 RANGE (0, 65535);
991 #if RX_OPCODE_BIG_ENDIAN
992 OP (1) = relocation;
993 OP (0) = relocation >> 8;
994 #else
995 OP (0) = relocation;
996 OP (1) = relocation >> 8;
997 #endif
998 break;
999
1000 /* Internal relocations just for relaxation: */
1001 case R_RX_RH_ABS5p5B:
1002 RX_STACK_POP (relocation);
1003 RANGE (0, 31);
1004 OP (0) &= 0xf8;
1005 OP (0) |= relocation >> 2;
1006 OP (1) &= 0x77;
1007 OP (1) |= (relocation << 6) & 0x80;
1008 OP (1) |= (relocation << 3) & 0x08;
1009 break;
1010
1011 case R_RX_RH_ABS5p5W:
1012 RX_STACK_POP (relocation);
1013 RANGE (0, 62);
1014 ALIGN (1);
1015 relocation >>= 1;
1016 OP (0) &= 0xf8;
1017 OP (0) |= relocation >> 2;
1018 OP (1) &= 0x77;
1019 OP (1) |= (relocation << 6) & 0x80;
1020 OP (1) |= (relocation << 3) & 0x08;
1021 break;
1022
1023 case R_RX_RH_ABS5p5L:
1024 RX_STACK_POP (relocation);
1025 RANGE (0, 124);
1026 ALIGN (3);
1027 relocation >>= 2;
1028 OP (0) &= 0xf8;
1029 OP (0) |= relocation >> 2;
1030 OP (1) &= 0x77;
1031 OP (1) |= (relocation << 6) & 0x80;
1032 OP (1) |= (relocation << 3) & 0x08;
1033 break;
1034
1035 case R_RX_RH_ABS5p8B:
1036 RX_STACK_POP (relocation);
1037 RANGE (0, 31);
1038 OP (0) &= 0x70;
1039 OP (0) |= (relocation << 3) & 0x80;
1040 OP (0) |= relocation & 0x0f;
1041 break;
1042
1043 case R_RX_RH_ABS5p8W:
1044 RX_STACK_POP (relocation);
1045 RANGE (0, 62);
1046 ALIGN (1);
1047 relocation >>= 1;
1048 OP (0) &= 0x70;
1049 OP (0) |= (relocation << 3) & 0x80;
1050 OP (0) |= relocation & 0x0f;
1051 break;
1052
1053 case R_RX_RH_ABS5p8L:
1054 RX_STACK_POP (relocation);
1055 RANGE (0, 124);
1056 ALIGN (3);
1057 relocation >>= 2;
1058 OP (0) &= 0x70;
1059 OP (0) |= (relocation << 3) & 0x80;
1060 OP (0) |= relocation & 0x0f;
1061 break;
1062
1063 case R_RX_RH_UIMM4p8:
1064 RANGE (0, 15);
1065 OP (0) &= 0x0f;
1066 OP (0) |= relocation << 4;
1067 break;
1068
1069 case R_RX_RH_UNEG4p8:
1070 RANGE (-15, 0);
1071 OP (0) &= 0x0f;
1072 OP (0) |= (-relocation) << 4;
1073 break;
1074
1075 /* Complex reloc handling: */
1076
1077 case R_RX_ABS32:
1078 UNSAFE_FOR_PID;
1079 RX_STACK_POP (relocation);
1080 #if RX_OPCODE_BIG_ENDIAN
1081 OP (3) = relocation;
1082 OP (2) = relocation >> 8;
1083 OP (1) = relocation >> 16;
1084 OP (0) = relocation >> 24;
1085 #else
1086 OP (0) = relocation;
1087 OP (1) = relocation >> 8;
1088 OP (2) = relocation >> 16;
1089 OP (3) = relocation >> 24;
1090 #endif
1091 break;
1092
1093 case R_RX_ABS32_REV:
1094 UNSAFE_FOR_PID;
1095 RX_STACK_POP (relocation);
1096 #if RX_OPCODE_BIG_ENDIAN
1097 OP (0) = relocation;
1098 OP (1) = relocation >> 8;
1099 OP (2) = relocation >> 16;
1100 OP (3) = relocation >> 24;
1101 #else
1102 OP (3) = relocation;
1103 OP (2) = relocation >> 8;
1104 OP (1) = relocation >> 16;
1105 OP (0) = relocation >> 24;
1106 #endif
1107 break;
1108
1109 case R_RX_ABS24S_PCREL:
1110 case R_RX_ABS24S:
1111 UNSAFE_FOR_PID;
1112 RX_STACK_POP (relocation);
1113 RANGE (-0x800000, 0x7fffff);
1114 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
1115 {
1116 OP (2) = relocation;
1117 OP (1) = relocation >> 8;
1118 OP (0) = relocation >> 16;
1119 }
1120 else
1121 {
1122 OP (0) = relocation;
1123 OP (1) = relocation >> 8;
1124 OP (2) = relocation >> 16;
1125 }
1126 break;
1127
1128 case R_RX_ABS16:
1129 UNSAFE_FOR_PID;
1130 RX_STACK_POP (relocation);
1131 RANGE (-32768, 65535);
1132 #if RX_OPCODE_BIG_ENDIAN
1133 OP (1) = relocation;
1134 OP (0) = relocation >> 8;
1135 #else
1136 OP (0) = relocation;
1137 OP (1) = relocation >> 8;
1138 #endif
1139 break;
1140
1141 case R_RX_ABS16_REV:
1142 UNSAFE_FOR_PID;
1143 RX_STACK_POP (relocation);
1144 RANGE (-32768, 65535);
1145 #if RX_OPCODE_BIG_ENDIAN
1146 OP (0) = relocation;
1147 OP (1) = relocation >> 8;
1148 #else
1149 OP (1) = relocation;
1150 OP (0) = relocation >> 8;
1151 #endif
1152 break;
1153
1154 case R_RX_ABS16S_PCREL:
1155 case R_RX_ABS16S:
1156 RX_STACK_POP (relocation);
1157 RANGE (-32768, 32767);
1158 if (BIGE (output_bfd) && !(input_section->flags & SEC_CODE))
1159 {
1160 OP (1) = relocation;
1161 OP (0) = relocation >> 8;
1162 }
1163 else
1164 {
1165 OP (0) = relocation;
1166 OP (1) = relocation >> 8;
1167 }
1168 break;
1169
1170 case R_RX_ABS16U:
1171 UNSAFE_FOR_PID;
1172 RX_STACK_POP (relocation);
1173 RANGE (0, 65536);
1174 #if RX_OPCODE_BIG_ENDIAN
1175 OP (1) = relocation;
1176 OP (0) = relocation >> 8;
1177 #else
1178 OP (0) = relocation;
1179 OP (1) = relocation >> 8;
1180 #endif
1181 break;
1182
1183 case R_RX_ABS16UL:
1184 UNSAFE_FOR_PID;
1185 RX_STACK_POP (relocation);
1186 relocation >>= 2;
1187 RANGE (0, 65536);
1188 #if RX_OPCODE_BIG_ENDIAN
1189 OP (1) = relocation;
1190 OP (0) = relocation >> 8;
1191 #else
1192 OP (0) = relocation;
1193 OP (1) = relocation >> 8;
1194 #endif
1195 break;
1196
1197 case R_RX_ABS16UW:
1198 UNSAFE_FOR_PID;
1199 RX_STACK_POP (relocation);
1200 relocation >>= 1;
1201 RANGE (0, 65536);
1202 #if RX_OPCODE_BIG_ENDIAN
1203 OP (1) = relocation;
1204 OP (0) = relocation >> 8;
1205 #else
1206 OP (0) = relocation;
1207 OP (1) = relocation >> 8;
1208 #endif
1209 break;
1210
1211 case R_RX_ABS8:
1212 UNSAFE_FOR_PID;
1213 RX_STACK_POP (relocation);
1214 RANGE (-128, 255);
1215 OP (0) = relocation;
1216 break;
1217
1218 case R_RX_ABS8U:
1219 UNSAFE_FOR_PID;
1220 RX_STACK_POP (relocation);
1221 RANGE (0, 255);
1222 OP (0) = relocation;
1223 break;
1224
1225 case R_RX_ABS8UL:
1226 UNSAFE_FOR_PID;
1227 RX_STACK_POP (relocation);
1228 relocation >>= 2;
1229 RANGE (0, 255);
1230 OP (0) = relocation;
1231 break;
1232
1233 case R_RX_ABS8UW:
1234 UNSAFE_FOR_PID;
1235 RX_STACK_POP (relocation);
1236 relocation >>= 1;
1237 RANGE (0, 255);
1238 OP (0) = relocation;
1239 break;
1240
1241 case R_RX_ABS8S:
1242 UNSAFE_FOR_PID;
1243 case R_RX_ABS8S_PCREL:
1244 RX_STACK_POP (relocation);
1245 RANGE (-128, 127);
1246 OP (0) = relocation;
1247 break;
1248
1249 case R_RX_SYM:
1250 if (r_symndx < symtab_hdr->sh_info)
1251 RX_STACK_PUSH (sec->output_section->vma
1252 + sec->output_offset
1253 + sym->st_value
1254 + rel->r_addend);
1255 else
1256 {
1257 if (h != NULL
1258 && (h->root.type == bfd_link_hash_defined
1259 || h->root.type == bfd_link_hash_defweak))
1260 RX_STACK_PUSH (h->root.u.def.value
1261 + sec->output_section->vma
1262 + sec->output_offset
1263 + rel->r_addend);
1264 else
1265 _bfd_error_handler (_("Warning: RX_SYM reloc with an unknown symbol"));
1266 }
1267 break;
1268
1269 case R_RX_OPneg:
1270 {
1271 int32_t tmp;
1272
1273 saw_subtract = TRUE;
1274 RX_STACK_POP (tmp);
1275 tmp = - tmp;
1276 RX_STACK_PUSH (tmp);
1277 }
1278 break;
1279
1280 case R_RX_OPadd:
1281 {
1282 int32_t tmp1, tmp2;
1283
1284 RX_STACK_POP (tmp1);
1285 RX_STACK_POP (tmp2);
1286 tmp1 += tmp2;
1287 RX_STACK_PUSH (tmp1);
1288 }
1289 break;
1290
1291 case R_RX_OPsub:
1292 {
1293 int32_t tmp1, tmp2;
1294
1295 saw_subtract = TRUE;
1296 RX_STACK_POP (tmp1);
1297 RX_STACK_POP (tmp2);
1298 tmp2 -= tmp1;
1299 RX_STACK_PUSH (tmp2);
1300 }
1301 break;
1302
1303 case R_RX_OPmul:
1304 {
1305 int32_t tmp1, tmp2;
1306
1307 RX_STACK_POP (tmp1);
1308 RX_STACK_POP (tmp2);
1309 tmp1 *= tmp2;
1310 RX_STACK_PUSH (tmp1);
1311 }
1312 break;
1313
1314 case R_RX_OPdiv:
1315 {
1316 int32_t tmp1, tmp2;
1317
1318 RX_STACK_POP (tmp1);
1319 RX_STACK_POP (tmp2);
1320 tmp1 /= tmp2;
1321 RX_STACK_PUSH (tmp1);
1322 }
1323 break;
1324
1325 case R_RX_OPshla:
1326 {
1327 int32_t tmp1, tmp2;
1328
1329 RX_STACK_POP (tmp1);
1330 RX_STACK_POP (tmp2);
1331 tmp1 <<= tmp2;
1332 RX_STACK_PUSH (tmp1);
1333 }
1334 break;
1335
1336 case R_RX_OPshra:
1337 {
1338 int32_t tmp1, tmp2;
1339
1340 RX_STACK_POP (tmp1);
1341 RX_STACK_POP (tmp2);
1342 tmp1 >>= tmp2;
1343 RX_STACK_PUSH (tmp1);
1344 }
1345 break;
1346
1347 case R_RX_OPsctsize:
1348 RX_STACK_PUSH (input_section->size);
1349 break;
1350
1351 case R_RX_OPscttop:
1352 RX_STACK_PUSH (input_section->output_section->vma);
1353 break;
1354
1355 case R_RX_OPand:
1356 {
1357 int32_t tmp1, tmp2;
1358
1359 RX_STACK_POP (tmp1);
1360 RX_STACK_POP (tmp2);
1361 tmp1 &= tmp2;
1362 RX_STACK_PUSH (tmp1);
1363 }
1364 break;
1365
1366 case R_RX_OPor:
1367 {
1368 int32_t tmp1, tmp2;
1369
1370 RX_STACK_POP (tmp1);
1371 RX_STACK_POP (tmp2);
1372 tmp1 |= tmp2;
1373 RX_STACK_PUSH (tmp1);
1374 }
1375 break;
1376
1377 case R_RX_OPxor:
1378 {
1379 int32_t tmp1, tmp2;
1380
1381 RX_STACK_POP (tmp1);
1382 RX_STACK_POP (tmp2);
1383 tmp1 ^= tmp2;
1384 RX_STACK_PUSH (tmp1);
1385 }
1386 break;
1387
1388 case R_RX_OPnot:
1389 {
1390 int32_t tmp;
1391
1392 RX_STACK_POP (tmp);
1393 tmp = ~ tmp;
1394 RX_STACK_PUSH (tmp);
1395 }
1396 break;
1397
1398 case R_RX_OPmod:
1399 {
1400 int32_t tmp1, tmp2;
1401
1402 RX_STACK_POP (tmp1);
1403 RX_STACK_POP (tmp2);
1404 tmp1 %= tmp2;
1405 RX_STACK_PUSH (tmp1);
1406 }
1407 break;
1408
1409 case R_RX_OPromtop:
1410 RX_STACK_PUSH (get_romstart (&r, info, input_bfd, input_section, rel->r_offset));
1411 break;
1412
1413 case R_RX_OPramtop:
1414 RX_STACK_PUSH (get_ramstart (&r, info, input_bfd, input_section, rel->r_offset));
1415 break;
1416
1417 default:
1418 r = bfd_reloc_notsupported;
1419 break;
1420 }
1421
1422 if (r != bfd_reloc_ok)
1423 {
1424 const char * msg = NULL;
1425
1426 switch (r)
1427 {
1428 case bfd_reloc_overflow:
1429 /* Catch the case of a missing function declaration
1430 and emit a more helpful error message. */
1431 if (r_type == R_RX_DIR24S_PCREL)
1432 msg = _("%B(%A): error: call to undefined function '%s'");
1433 else
1434 r = info->callbacks->reloc_overflow
1435 (info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0,
1436 input_bfd, input_section, rel->r_offset);
1437 break;
1438
1439 case bfd_reloc_undefined:
1440 r = info->callbacks->undefined_symbol
1441 (info, name, input_bfd, input_section, rel->r_offset,
1442 TRUE);
1443 break;
1444
1445 case bfd_reloc_other:
1446 msg = _("%B(%A): warning: unaligned access to symbol '%s' in the small data area");
1447 break;
1448
1449 case bfd_reloc_outofrange:
1450 msg = _("%B(%A): internal error: out of range error");
1451 break;
1452
1453 case bfd_reloc_notsupported:
1454 msg = _("%B(%A): internal error: unsupported relocation error");
1455 break;
1456
1457 case bfd_reloc_dangerous:
1458 msg = _("%B(%A): internal error: dangerous relocation");
1459 break;
1460
1461 default:
1462 msg = _("%B(%A): internal error: unknown error");
1463 break;
1464 }
1465
1466 if (msg)
1467 _bfd_error_handler (msg, input_bfd, input_section, name);
1468
1469 if (! r)
1470 return FALSE;
1471 }
1472 }
1473
1474 return TRUE;
1475 }
1476 \f
1477 /* Relaxation Support. */
1478
1479 /* Progression of relocations from largest operand size to smallest
1480 operand size. */
1481
1482 static int
1483 next_smaller_reloc (int r)
1484 {
1485 switch (r)
1486 {
1487 case R_RX_DIR32: return R_RX_DIR24S;
1488 case R_RX_DIR24S: return R_RX_DIR16S;
1489 case R_RX_DIR16S: return R_RX_DIR8S;
1490 case R_RX_DIR8S: return R_RX_NONE;
1491
1492 case R_RX_DIR16: return R_RX_DIR8;
1493 case R_RX_DIR8: return R_RX_NONE;
1494
1495 case R_RX_DIR16U: return R_RX_DIR8U;
1496 case R_RX_DIR8U: return R_RX_NONE;
1497
1498 case R_RX_DIR24S_PCREL: return R_RX_DIR16S_PCREL;
1499 case R_RX_DIR16S_PCREL: return R_RX_DIR8S_PCREL;
1500 case R_RX_DIR8S_PCREL: return R_RX_DIR3U_PCREL;
1501
1502 case R_RX_DIR16UL: return R_RX_DIR8UL;
1503 case R_RX_DIR8UL: return R_RX_NONE;
1504 case R_RX_DIR16UW: return R_RX_DIR8UW;
1505 case R_RX_DIR8UW: return R_RX_NONE;
1506
1507 case R_RX_RH_32_OP: return R_RX_RH_24_OP;
1508 case R_RX_RH_24_OP: return R_RX_RH_16_OP;
1509 case R_RX_RH_16_OP: return R_RX_DIR8;
1510
1511 case R_RX_ABS32: return R_RX_ABS24S;
1512 case R_RX_ABS24S: return R_RX_ABS16S;
1513 case R_RX_ABS16: return R_RX_ABS8;
1514 case R_RX_ABS16U: return R_RX_ABS8U;
1515 case R_RX_ABS16S: return R_RX_ABS8S;
1516 case R_RX_ABS8: return R_RX_NONE;
1517 case R_RX_ABS8U: return R_RX_NONE;
1518 case R_RX_ABS8S: return R_RX_NONE;
1519 case R_RX_ABS24S_PCREL: return R_RX_ABS16S_PCREL;
1520 case R_RX_ABS16S_PCREL: return R_RX_ABS8S_PCREL;
1521 case R_RX_ABS8S_PCREL: return R_RX_NONE;
1522 case R_RX_ABS16UL: return R_RX_ABS8UL;
1523 case R_RX_ABS16UW: return R_RX_ABS8UW;
1524 case R_RX_ABS8UL: return R_RX_NONE;
1525 case R_RX_ABS8UW: return R_RX_NONE;
1526 }
1527 return r;
1528 };
1529
1530 /* Delete some bytes from a section while relaxing. */
1531
1532 static bfd_boolean
1533 elf32_rx_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, int count,
1534 Elf_Internal_Rela *alignment_rel, int force_snip,
1535 Elf_Internal_Rela *irelstart)
1536 {
1537 Elf_Internal_Shdr * symtab_hdr;
1538 unsigned int sec_shndx;
1539 bfd_byte * contents;
1540 Elf_Internal_Rela * irel;
1541 Elf_Internal_Rela * irelend;
1542 Elf_Internal_Sym * isym;
1543 Elf_Internal_Sym * isymend;
1544 bfd_vma toaddr;
1545 unsigned int symcount;
1546 struct elf_link_hash_entry ** sym_hashes;
1547 struct elf_link_hash_entry ** end_hashes;
1548
1549 if (!alignment_rel)
1550 force_snip = 1;
1551
1552 sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
1553
1554 contents = elf_section_data (sec)->this_hdr.contents;
1555
1556 /* The deletion must stop at the next alignment boundary, if
1557 ALIGNMENT_REL is non-NULL. */
1558 toaddr = sec->size;
1559 if (alignment_rel)
1560 toaddr = alignment_rel->r_offset;
1561
1562 BFD_ASSERT (toaddr > addr);
1563
1564 /* Actually delete the bytes. */
1565 memmove (contents + addr, contents + addr + count,
1566 (size_t) (toaddr - addr - count));
1567
1568 /* If we don't have an alignment marker to worry about, we can just
1569 shrink the section. Otherwise, we have to fill in the newly
1570 created gap with NOP insns (0x03). */
1571 if (force_snip)
1572 sec->size -= count;
1573 else
1574 memset (contents + toaddr - count, 0x03, count);
1575
1576 irel = irelstart;
1577 BFD_ASSERT (irel != NULL || sec->reloc_count == 0);
1578 irelend = irel + sec->reloc_count;
1579
1580 /* Adjust all the relocs. */
1581 for (; irel < irelend; irel++)
1582 {
1583 /* Get the new reloc address. */
1584 if (irel->r_offset > addr
1585 && (irel->r_offset < toaddr
1586 || (force_snip && irel->r_offset == toaddr)))
1587 irel->r_offset -= count;
1588
1589 /* If we see an ALIGN marker at the end of the gap, we move it
1590 to the beginning of the gap, since marking these gaps is what
1591 they're for. */
1592 if (irel->r_offset == toaddr
1593 && ELF32_R_TYPE (irel->r_info) == R_RX_RH_RELAX
1594 && irel->r_addend & RX_RELAXA_ALIGN)
1595 irel->r_offset -= count;
1596 }
1597
1598 /* Adjust the local symbols defined in this section. */
1599 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1600 isym = (Elf_Internal_Sym *) symtab_hdr->contents;
1601 isymend = isym + symtab_hdr->sh_info;
1602
1603 for (; isym < isymend; isym++)
1604 {
1605 /* If the symbol is in the range of memory we just moved, we
1606 have to adjust its value. */
1607 if (isym->st_shndx == sec_shndx
1608 && isym->st_value > addr
1609 && isym->st_value < toaddr)
1610 isym->st_value -= count;
1611
1612 /* If the symbol *spans* the bytes we just deleted (i.e. it's
1613 *end* is in the moved bytes but it's *start* isn't), then we
1614 must adjust its size. */
1615 if (isym->st_shndx == sec_shndx
1616 && isym->st_value < addr
1617 && isym->st_value + isym->st_size > addr
1618 && isym->st_value + isym->st_size < toaddr)
1619 isym->st_size -= count;
1620 }
1621
1622 /* Now adjust the global symbols defined in this section. */
1623 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1624 - symtab_hdr->sh_info);
1625 sym_hashes = elf_sym_hashes (abfd);
1626 end_hashes = sym_hashes + symcount;
1627
1628 for (; sym_hashes < end_hashes; sym_hashes++)
1629 {
1630 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1631
1632 if ((sym_hash->root.type == bfd_link_hash_defined
1633 || sym_hash->root.type == bfd_link_hash_defweak)
1634 && sym_hash->root.u.def.section == sec)
1635 {
1636 /* As above, adjust the value if needed. */
1637 if (sym_hash->root.u.def.value > addr
1638 && sym_hash->root.u.def.value < toaddr)
1639 sym_hash->root.u.def.value -= count;
1640
1641 /* As above, adjust the size if needed. */
1642 if (sym_hash->root.u.def.value < addr
1643 && sym_hash->root.u.def.value + sym_hash->size > addr
1644 && sym_hash->root.u.def.value + sym_hash->size < toaddr)
1645 sym_hash->size -= count;
1646 }
1647 }
1648
1649 return TRUE;
1650 }
1651
1652 /* Used to sort relocs by address. If relocs have the same address,
1653 we maintain their relative order, except that R_RX_RH_RELAX
1654 alignment relocs must be the first reloc for any given address. */
1655
1656 static void
1657 reloc_bubblesort (Elf_Internal_Rela * r, int count)
1658 {
1659 int i;
1660 bfd_boolean again;
1661 bfd_boolean swappit;
1662
1663 /* This is almost a classic bubblesort. It's the slowest sort, but
1664 we're taking advantage of the fact that the relocations are
1665 mostly in order already (the assembler emits them that way) and
1666 we need relocs with the same address to remain in the same
1667 relative order. */
1668 again = TRUE;
1669 while (again)
1670 {
1671 again = FALSE;
1672 for (i = 0; i < count - 1; i ++)
1673 {
1674 if (r[i].r_offset > r[i + 1].r_offset)
1675 swappit = TRUE;
1676 else if (r[i].r_offset < r[i + 1].r_offset)
1677 swappit = FALSE;
1678 else if (ELF32_R_TYPE (r[i + 1].r_info) == R_RX_RH_RELAX
1679 && (r[i + 1].r_addend & RX_RELAXA_ALIGN))
1680 swappit = TRUE;
1681 else if (ELF32_R_TYPE (r[i + 1].r_info) == R_RX_RH_RELAX
1682 && (r[i + 1].r_addend & RX_RELAXA_ELIGN)
1683 && !(ELF32_R_TYPE (r[i].r_info) == R_RX_RH_RELAX
1684 && (r[i].r_addend & RX_RELAXA_ALIGN)))
1685 swappit = TRUE;
1686 else
1687 swappit = FALSE;
1688
1689 if (swappit)
1690 {
1691 Elf_Internal_Rela tmp;
1692
1693 tmp = r[i];
1694 r[i] = r[i + 1];
1695 r[i + 1] = tmp;
1696 /* If we do move a reloc back, re-scan to see if it
1697 needs to be moved even further back. This avoids
1698 most of the O(n^2) behavior for our cases. */
1699 if (i > 0)
1700 i -= 2;
1701 again = TRUE;
1702 }
1703 }
1704 }
1705 }
1706
1707
1708 #define OFFSET_FOR_RELOC(rel, lrel, scale) \
1709 rx_offset_for_reloc (abfd, rel + 1, symtab_hdr, shndx_buf, intsyms, \
1710 lrel, abfd, sec, link_info, scale)
1711
1712 static bfd_vma
1713 rx_offset_for_reloc (bfd * abfd,
1714 Elf_Internal_Rela * rel,
1715 Elf_Internal_Shdr * symtab_hdr,
1716 Elf_External_Sym_Shndx * shndx_buf ATTRIBUTE_UNUSED,
1717 Elf_Internal_Sym * intsyms,
1718 Elf_Internal_Rela ** lrel,
1719 bfd * input_bfd,
1720 asection * input_section,
1721 struct bfd_link_info * info,
1722 int * scale)
1723 {
1724 bfd_vma symval;
1725 bfd_reloc_status_type r;
1726
1727 *scale = 1;
1728
1729 /* REL is the first of 1..N relocations. We compute the symbol
1730 value for each relocation, then combine them if needed. LREL
1731 gets a pointer to the last relocation used. */
1732 while (1)
1733 {
1734 int32_t tmp1, tmp2;
1735
1736 /* Get the value of the symbol referred to by the reloc. */
1737 if (ELF32_R_SYM (rel->r_info) < symtab_hdr->sh_info)
1738 {
1739 /* A local symbol. */
1740 Elf_Internal_Sym *isym;
1741 asection *ssec;
1742
1743 isym = intsyms + ELF32_R_SYM (rel->r_info);
1744
1745 if (isym->st_shndx == SHN_UNDEF)
1746 ssec = bfd_und_section_ptr;
1747 else if (isym->st_shndx == SHN_ABS)
1748 ssec = bfd_abs_section_ptr;
1749 else if (isym->st_shndx == SHN_COMMON)
1750 ssec = bfd_com_section_ptr;
1751 else
1752 ssec = bfd_section_from_elf_index (abfd,
1753 isym->st_shndx);
1754
1755 /* Initial symbol value. */
1756 symval = isym->st_value;
1757
1758 /* GAS may have made this symbol relative to a section, in
1759 which case, we have to add the addend to find the
1760 symbol. */
1761 if (ELF_ST_TYPE (isym->st_info) == STT_SECTION)
1762 symval += rel->r_addend;
1763
1764 if (ssec)
1765 {
1766 if ((ssec->flags & SEC_MERGE)
1767 && ssec->sec_info_type == SEC_INFO_TYPE_MERGE)
1768 symval = _bfd_merged_section_offset (abfd, & ssec,
1769 elf_section_data (ssec)->sec_info,
1770 symval);
1771 }
1772
1773 /* Now make the offset relative to where the linker is putting it. */
1774 if (ssec)
1775 symval +=
1776 ssec->output_section->vma + ssec->output_offset;
1777
1778 symval += rel->r_addend;
1779 }
1780 else
1781 {
1782 unsigned long indx;
1783 struct elf_link_hash_entry * h;
1784
1785 /* An external symbol. */
1786 indx = ELF32_R_SYM (rel->r_info) - symtab_hdr->sh_info;
1787 h = elf_sym_hashes (abfd)[indx];
1788 BFD_ASSERT (h != NULL);
1789
1790 if (h->root.type != bfd_link_hash_defined
1791 && h->root.type != bfd_link_hash_defweak)
1792 {
1793 /* This appears to be a reference to an undefined
1794 symbol. Just ignore it--it will be caught by the
1795 regular reloc processing. */
1796 if (lrel)
1797 *lrel = rel;
1798 return 0;
1799 }
1800
1801 symval = (h->root.u.def.value
1802 + h->root.u.def.section->output_section->vma
1803 + h->root.u.def.section->output_offset);
1804
1805 symval += rel->r_addend;
1806 }
1807
1808 switch (ELF32_R_TYPE (rel->r_info))
1809 {
1810 case R_RX_SYM:
1811 RX_STACK_PUSH (symval);
1812 break;
1813
1814 case R_RX_OPneg:
1815 RX_STACK_POP (tmp1);
1816 tmp1 = - tmp1;
1817 RX_STACK_PUSH (tmp1);
1818 break;
1819
1820 case R_RX_OPadd:
1821 RX_STACK_POP (tmp1);
1822 RX_STACK_POP (tmp2);
1823 tmp1 += tmp2;
1824 RX_STACK_PUSH (tmp1);
1825 break;
1826
1827 case R_RX_OPsub:
1828 RX_STACK_POP (tmp1);
1829 RX_STACK_POP (tmp2);
1830 tmp2 -= tmp1;
1831 RX_STACK_PUSH (tmp2);
1832 break;
1833
1834 case R_RX_OPmul:
1835 RX_STACK_POP (tmp1);
1836 RX_STACK_POP (tmp2);
1837 tmp1 *= tmp2;
1838 RX_STACK_PUSH (tmp1);
1839 break;
1840
1841 case R_RX_OPdiv:
1842 RX_STACK_POP (tmp1);
1843 RX_STACK_POP (tmp2);
1844 tmp1 /= tmp2;
1845 RX_STACK_PUSH (tmp1);
1846 break;
1847
1848 case R_RX_OPshla:
1849 RX_STACK_POP (tmp1);
1850 RX_STACK_POP (tmp2);
1851 tmp1 <<= tmp2;
1852 RX_STACK_PUSH (tmp1);
1853 break;
1854
1855 case R_RX_OPshra:
1856 RX_STACK_POP (tmp1);
1857 RX_STACK_POP (tmp2);
1858 tmp1 >>= tmp2;
1859 RX_STACK_PUSH (tmp1);
1860 break;
1861
1862 case R_RX_OPsctsize:
1863 RX_STACK_PUSH (input_section->size);
1864 break;
1865
1866 case R_RX_OPscttop:
1867 RX_STACK_PUSH (input_section->output_section->vma);
1868 break;
1869
1870 case R_RX_OPand:
1871 RX_STACK_POP (tmp1);
1872 RX_STACK_POP (tmp2);
1873 tmp1 &= tmp2;
1874 RX_STACK_PUSH (tmp1);
1875 break;
1876
1877 case R_RX_OPor:
1878 RX_STACK_POP (tmp1);
1879 RX_STACK_POP (tmp2);
1880 tmp1 |= tmp2;
1881 RX_STACK_PUSH (tmp1);
1882 break;
1883
1884 case R_RX_OPxor:
1885 RX_STACK_POP (tmp1);
1886 RX_STACK_POP (tmp2);
1887 tmp1 ^= tmp2;
1888 RX_STACK_PUSH (tmp1);
1889 break;
1890
1891 case R_RX_OPnot:
1892 RX_STACK_POP (tmp1);
1893 tmp1 = ~ tmp1;
1894 RX_STACK_PUSH (tmp1);
1895 break;
1896
1897 case R_RX_OPmod:
1898 RX_STACK_POP (tmp1);
1899 RX_STACK_POP (tmp2);
1900 tmp1 %= tmp2;
1901 RX_STACK_PUSH (tmp1);
1902 break;
1903
1904 case R_RX_OPromtop:
1905 RX_STACK_PUSH (get_romstart (&r, info, input_bfd, input_section, rel->r_offset));
1906 break;
1907
1908 case R_RX_OPramtop:
1909 RX_STACK_PUSH (get_ramstart (&r, info, input_bfd, input_section, rel->r_offset));
1910 break;
1911
1912 case R_RX_DIR16UL:
1913 case R_RX_DIR8UL:
1914 case R_RX_ABS16UL:
1915 case R_RX_ABS8UL:
1916 if (rx_stack_top)
1917 RX_STACK_POP (symval);
1918 if (lrel)
1919 *lrel = rel;
1920 *scale = 4;
1921 return symval;
1922
1923 case R_RX_DIR16UW:
1924 case R_RX_DIR8UW:
1925 case R_RX_ABS16UW:
1926 case R_RX_ABS8UW:
1927 if (rx_stack_top)
1928 RX_STACK_POP (symval);
1929 if (lrel)
1930 *lrel = rel;
1931 *scale = 2;
1932 return symval;
1933
1934 default:
1935 if (rx_stack_top)
1936 RX_STACK_POP (symval);
1937 if (lrel)
1938 *lrel = rel;
1939 return symval;
1940 }
1941
1942 rel ++;
1943 }
1944 }
1945
1946 static void
1947 move_reloc (Elf_Internal_Rela * irel, Elf_Internal_Rela * srel, int delta)
1948 {
1949 bfd_vma old_offset = srel->r_offset;
1950
1951 irel ++;
1952 while (irel <= srel)
1953 {
1954 if (irel->r_offset == old_offset)
1955 irel->r_offset += delta;
1956 irel ++;
1957 }
1958 }
1959
1960 /* Relax one section. */
1961
1962 static bfd_boolean
1963 elf32_rx_relax_section (bfd * abfd,
1964 asection * sec,
1965 struct bfd_link_info * link_info,
1966 bfd_boolean * again,
1967 bfd_boolean allow_pcrel3)
1968 {
1969 Elf_Internal_Shdr * symtab_hdr;
1970 Elf_Internal_Shdr * shndx_hdr;
1971 Elf_Internal_Rela * internal_relocs;
1972 Elf_Internal_Rela * irel;
1973 Elf_Internal_Rela * srel;
1974 Elf_Internal_Rela * irelend;
1975 Elf_Internal_Rela * next_alignment;
1976 Elf_Internal_Rela * prev_alignment;
1977 bfd_byte * contents = NULL;
1978 bfd_byte * free_contents = NULL;
1979 Elf_Internal_Sym * intsyms = NULL;
1980 Elf_Internal_Sym * free_intsyms = NULL;
1981 Elf_External_Sym_Shndx * shndx_buf = NULL;
1982 bfd_vma pc;
1983 bfd_vma sec_start;
1984 bfd_vma symval = 0;
1985 int pcrel = 0;
1986 int code = 0;
1987 int section_alignment_glue;
1988 /* how much to scale the relocation by - 1, 2, or 4. */
1989 int scale;
1990
1991 /* Assume nothing changes. */
1992 *again = FALSE;
1993
1994 /* We don't have to do anything for a relocatable link, if
1995 this section does not have relocs, or if this is not a
1996 code section. */
1997 if (bfd_link_relocatable (link_info)
1998 || (sec->flags & SEC_RELOC) == 0
1999 || sec->reloc_count == 0
2000 || (sec->flags & SEC_CODE) == 0)
2001 return TRUE;
2002
2003 symtab_hdr = & elf_symtab_hdr (abfd);
2004 if (elf_symtab_shndx_list (abfd))
2005 shndx_hdr = & elf_symtab_shndx_list (abfd)->hdr;
2006 else
2007 shndx_hdr = NULL;
2008
2009 sec_start = sec->output_section->vma + sec->output_offset;
2010
2011 /* Get the section contents. */
2012 if (elf_section_data (sec)->this_hdr.contents != NULL)
2013 contents = elf_section_data (sec)->this_hdr.contents;
2014 /* Go get them off disk. */
2015 else
2016 {
2017 if (! bfd_malloc_and_get_section (abfd, sec, &contents))
2018 goto error_return;
2019 elf_section_data (sec)->this_hdr.contents = contents;
2020 }
2021
2022 /* Read this BFD's symbols. */
2023 /* Get cached copy if it exists. */
2024 if (symtab_hdr->contents != NULL)
2025 intsyms = (Elf_Internal_Sym *) symtab_hdr->contents;
2026 else
2027 {
2028 intsyms = bfd_elf_get_elf_syms (abfd, symtab_hdr, symtab_hdr->sh_info, 0, NULL, NULL, NULL);
2029 symtab_hdr->contents = (bfd_byte *) intsyms;
2030 }
2031
2032 if (shndx_hdr && shndx_hdr->sh_size != 0)
2033 {
2034 bfd_size_type amt;
2035
2036 amt = symtab_hdr->sh_info;
2037 amt *= sizeof (Elf_External_Sym_Shndx);
2038 shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
2039 if (shndx_buf == NULL)
2040 goto error_return;
2041 if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
2042 || bfd_bread (shndx_buf, amt, abfd) != amt)
2043 goto error_return;
2044 shndx_hdr->contents = (bfd_byte *) shndx_buf;
2045 }
2046
2047 /* Get a copy of the native relocations. */
2048 /* Note - we ignore the setting of link_info->keep_memory when reading
2049 in these relocs. We have to maintain a permanent copy of the relocs
2050 because we are going to walk over them multiple times, adjusting them
2051 as bytes are deleted from the section, and with this relaxation
2052 function itself being called multiple times on the same section... */
2053 internal_relocs = _bfd_elf_link_read_relocs
2054 (abfd, sec, NULL, (Elf_Internal_Rela *) NULL, TRUE);
2055 if (internal_relocs == NULL)
2056 goto error_return;
2057
2058 /* The RL_ relocs must be just before the operand relocs they go
2059 with, so we must sort them to guarantee this. We use bubblesort
2060 instead of qsort so we can guarantee that relocs with the same
2061 address remain in the same relative order. */
2062 reloc_bubblesort (internal_relocs, sec->reloc_count);
2063
2064 /* Walk through them looking for relaxing opportunities. */
2065 irelend = internal_relocs + sec->reloc_count;
2066
2067 /* This will either be NULL or a pointer to the next alignment
2068 relocation. */
2069 next_alignment = internal_relocs;
2070 /* This will be the previous alignment, although at first it points
2071 to the first real relocation. */
2072 prev_alignment = internal_relocs;
2073
2074 /* We calculate worst case shrinkage caused by alignment directives.
2075 No fool-proof, but better than either ignoring the problem or
2076 doing heavy duty analysis of all the alignment markers in all
2077 input sections. */
2078 section_alignment_glue = 0;
2079 for (irel = internal_relocs; irel < irelend; irel++)
2080 if (ELF32_R_TYPE (irel->r_info) == R_RX_RH_RELAX
2081 && irel->r_addend & RX_RELAXA_ALIGN)
2082 {
2083 int this_glue = 1 << (irel->r_addend & RX_RELAXA_ANUM);
2084
2085 if (section_alignment_glue < this_glue)
2086 section_alignment_glue = this_glue;
2087 }
2088 /* Worst case is all 0..N alignments, in order, causing 2*N-1 byte
2089 shrinkage. */
2090 section_alignment_glue *= 2;
2091
2092 for (irel = internal_relocs; irel < irelend; irel++)
2093 {
2094 unsigned char *insn;
2095 int nrelocs;
2096
2097 /* The insns we care about are all marked with one of these. */
2098 if (ELF32_R_TYPE (irel->r_info) != R_RX_RH_RELAX)
2099 continue;
2100
2101 if (irel->r_addend & RX_RELAXA_ALIGN
2102 || next_alignment == internal_relocs)
2103 {
2104 /* When we delete bytes, we need to maintain all the alignments
2105 indicated. In addition, we need to be careful about relaxing
2106 jumps across alignment boundaries - these displacements
2107 *grow* when we delete bytes. For now, don't shrink
2108 displacements across an alignment boundary, just in case.
2109 Note that this only affects relocations to the same
2110 section. */
2111 prev_alignment = next_alignment;
2112 next_alignment += 2;
2113 while (next_alignment < irelend
2114 && (ELF32_R_TYPE (next_alignment->r_info) != R_RX_RH_RELAX
2115 || !(next_alignment->r_addend & RX_RELAXA_ELIGN)))
2116 next_alignment ++;
2117 if (next_alignment >= irelend || next_alignment->r_offset == 0)
2118 next_alignment = NULL;
2119 }
2120
2121 /* When we hit alignment markers, see if we've shrunk enough
2122 before them to reduce the gap without violating the alignment
2123 requirements. */
2124 if (irel->r_addend & RX_RELAXA_ALIGN)
2125 {
2126 /* At this point, the next relocation *should* be the ELIGN
2127 end marker. */
2128 Elf_Internal_Rela *erel = irel + 1;
2129 unsigned int alignment, nbytes;
2130
2131 if (ELF32_R_TYPE (erel->r_info) != R_RX_RH_RELAX)
2132 continue;
2133 if (!(erel->r_addend & RX_RELAXA_ELIGN))
2134 continue;
2135
2136 alignment = 1 << (irel->r_addend & RX_RELAXA_ANUM);
2137
2138 if (erel->r_offset - irel->r_offset < alignment)
2139 continue;
2140
2141 nbytes = erel->r_offset - irel->r_offset;
2142 nbytes /= alignment;
2143 nbytes *= alignment;
2144
2145 elf32_rx_relax_delete_bytes (abfd, sec, erel->r_offset-nbytes, nbytes, next_alignment,
2146 erel->r_offset == sec->size, internal_relocs);
2147 *again = TRUE;
2148
2149 continue;
2150 }
2151
2152 if (irel->r_addend & RX_RELAXA_ELIGN)
2153 continue;
2154
2155 insn = contents + irel->r_offset;
2156
2157 nrelocs = irel->r_addend & RX_RELAXA_RNUM;
2158
2159 /* At this point, we have an insn that is a candidate for linker
2160 relaxation. There are NRELOCS relocs following that may be
2161 relaxed, although each reloc may be made of more than one
2162 reloc entry (such as gp-rel symbols). */
2163
2164 /* Get the value of the symbol referred to by the reloc. Just
2165 in case this is the last reloc in the list, use the RL's
2166 addend to choose between this reloc (no addend) or the next
2167 (yes addend, which means at least one following reloc). */
2168
2169 /* srel points to the "current" reloction for this insn -
2170 actually the last reloc for a given operand, which is the one
2171 we need to update. We check the relaxations in the same
2172 order that the relocations happen, so we'll just push it
2173 along as we go. */
2174 srel = irel;
2175
2176 pc = sec->output_section->vma + sec->output_offset
2177 + srel->r_offset;
2178
2179 #define GET_RELOC \
2180 symval = OFFSET_FOR_RELOC (srel, &srel, &scale); \
2181 pcrel = symval - pc + srel->r_addend; \
2182 nrelocs --;
2183
2184 #define SNIPNR(offset, nbytes) \
2185 elf32_rx_relax_delete_bytes (abfd, sec, (insn - contents) + offset, nbytes, next_alignment, 0, internal_relocs);
2186 #define SNIP(offset, nbytes, newtype) \
2187 SNIPNR (offset, nbytes); \
2188 srel->r_info = ELF32_R_INFO (ELF32_R_SYM (srel->r_info), newtype)
2189
2190 /* The order of these bit tests must match the order that the
2191 relocs appear in. Since we sorted those by offset, we can
2192 predict them. */
2193
2194 /* Note that the numbers in, say, DSP6 are the bit offsets of
2195 the code fields that describe the operand. Bits number 0 for
2196 the MSB of insn[0]. */
2197
2198 /* DSP* codes:
2199 0 00 [reg]
2200 1 01 dsp:8[reg]
2201 2 10 dsp:16[reg]
2202 3 11 reg */
2203 if (irel->r_addend & RX_RELAXA_DSP6)
2204 {
2205 GET_RELOC;
2206
2207 code = insn[0] & 3;
2208 if (code == 2 && symval/scale <= 255)
2209 {
2210 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2211 insn[0] &= 0xfc;
2212 insn[0] |= 0x01;
2213 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2214 if (newrel != ELF32_R_TYPE (srel->r_info))
2215 {
2216 SNIP (3, 1, newrel);
2217 *again = TRUE;
2218 }
2219 }
2220
2221 else if (code == 1 && symval == 0)
2222 {
2223 insn[0] &= 0xfc;
2224 SNIP (2, 1, R_RX_NONE);
2225 *again = TRUE;
2226 }
2227
2228 /* Special case DSP:5 format: MOV.bwl dsp:5[Rsrc],Rdst. */
2229 else if (code == 1 && symval/scale <= 31
2230 /* Decodable bits. */
2231 && (insn[0] & 0xcc) == 0xcc
2232 /* Width. */
2233 && (insn[0] & 0x30) != 0x30
2234 /* Register MSBs. */
2235 && (insn[1] & 0x88) == 0x00)
2236 {
2237 int newrel = 0;
2238
2239 insn[0] = 0x88 | (insn[0] & 0x30);
2240 /* The register fields are in the right place already. */
2241
2242 /* We can't relax this new opcode. */
2243 irel->r_addend = 0;
2244
2245 switch ((insn[0] & 0x30) >> 4)
2246 {
2247 case 0:
2248 newrel = R_RX_RH_ABS5p5B;
2249 break;
2250 case 1:
2251 newrel = R_RX_RH_ABS5p5W;
2252 break;
2253 case 2:
2254 newrel = R_RX_RH_ABS5p5L;
2255 break;
2256 }
2257
2258 move_reloc (irel, srel, -2);
2259 SNIP (2, 1, newrel);
2260 }
2261
2262 /* Special case DSP:5 format: MOVU.bw dsp:5[Rsrc],Rdst. */
2263 else if (code == 1 && symval/scale <= 31
2264 /* Decodable bits. */
2265 && (insn[0] & 0xf8) == 0x58
2266 /* Register MSBs. */
2267 && (insn[1] & 0x88) == 0x00)
2268 {
2269 int newrel = 0;
2270
2271 insn[0] = 0xb0 | ((insn[0] & 0x04) << 1);
2272 /* The register fields are in the right place already. */
2273
2274 /* We can't relax this new opcode. */
2275 irel->r_addend = 0;
2276
2277 switch ((insn[0] & 0x08) >> 3)
2278 {
2279 case 0:
2280 newrel = R_RX_RH_ABS5p5B;
2281 break;
2282 case 1:
2283 newrel = R_RX_RH_ABS5p5W;
2284 break;
2285 }
2286
2287 move_reloc (irel, srel, -2);
2288 SNIP (2, 1, newrel);
2289 }
2290 }
2291
2292 /* A DSP4 operand always follows a DSP6 operand, even if there's
2293 no relocation for it. We have to read the code out of the
2294 opcode to calculate the offset of the operand. */
2295 if (irel->r_addend & RX_RELAXA_DSP4)
2296 {
2297 int code6, offset = 0;
2298
2299 GET_RELOC;
2300
2301 code6 = insn[0] & 0x03;
2302 switch (code6)
2303 {
2304 case 0: offset = 2; break;
2305 case 1: offset = 3; break;
2306 case 2: offset = 4; break;
2307 case 3: offset = 2; break;
2308 }
2309
2310 code = (insn[0] & 0x0c) >> 2;
2311
2312 if (code == 2 && symval / scale <= 255)
2313 {
2314 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2315
2316 insn[0] &= 0xf3;
2317 insn[0] |= 0x04;
2318 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2319 if (newrel != ELF32_R_TYPE (srel->r_info))
2320 {
2321 SNIP (offset+1, 1, newrel);
2322 *again = TRUE;
2323 }
2324 }
2325
2326 else if (code == 1 && symval == 0)
2327 {
2328 insn[0] &= 0xf3;
2329 SNIP (offset, 1, R_RX_NONE);
2330 *again = TRUE;
2331 }
2332 /* Special case DSP:5 format: MOV.bwl Rsrc,dsp:5[Rdst] */
2333 else if (code == 1 && symval/scale <= 31
2334 /* Decodable bits. */
2335 && (insn[0] & 0xc3) == 0xc3
2336 /* Width. */
2337 && (insn[0] & 0x30) != 0x30
2338 /* Register MSBs. */
2339 && (insn[1] & 0x88) == 0x00)
2340 {
2341 int newrel = 0;
2342
2343 insn[0] = 0x80 | (insn[0] & 0x30);
2344 /* The register fields are in the right place already. */
2345
2346 /* We can't relax this new opcode. */
2347 irel->r_addend = 0;
2348
2349 switch ((insn[0] & 0x30) >> 4)
2350 {
2351 case 0:
2352 newrel = R_RX_RH_ABS5p5B;
2353 break;
2354 case 1:
2355 newrel = R_RX_RH_ABS5p5W;
2356 break;
2357 case 2:
2358 newrel = R_RX_RH_ABS5p5L;
2359 break;
2360 }
2361
2362 move_reloc (irel, srel, -2);
2363 SNIP (2, 1, newrel);
2364 }
2365 }
2366
2367 /* These always occur alone, but the offset depends on whether
2368 it's a MEMEX opcode (0x06) or not. */
2369 if (irel->r_addend & RX_RELAXA_DSP14)
2370 {
2371 int offset;
2372 GET_RELOC;
2373
2374 if (insn[0] == 0x06)
2375 offset = 3;
2376 else
2377 offset = 4;
2378
2379 code = insn[1] & 3;
2380
2381 if (code == 2 && symval / scale <= 255)
2382 {
2383 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2384
2385 insn[1] &= 0xfc;
2386 insn[1] |= 0x01;
2387 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2388 if (newrel != ELF32_R_TYPE (srel->r_info))
2389 {
2390 SNIP (offset, 1, newrel);
2391 *again = TRUE;
2392 }
2393 }
2394 else if (code == 1 && symval == 0)
2395 {
2396 insn[1] &= 0xfc;
2397 SNIP (offset, 1, R_RX_NONE);
2398 *again = TRUE;
2399 }
2400 }
2401
2402 /* IMM* codes:
2403 0 00 imm:32
2404 1 01 simm:8
2405 2 10 simm:16
2406 3 11 simm:24. */
2407
2408 /* These always occur alone. */
2409 if (irel->r_addend & RX_RELAXA_IMM6)
2410 {
2411 long ssymval;
2412
2413 GET_RELOC;
2414
2415 /* These relocations sign-extend, so we must do signed compares. */
2416 ssymval = (long) symval;
2417
2418 code = insn[0] & 0x03;
2419
2420 if (code == 0 && ssymval <= 8388607 && ssymval >= -8388608)
2421 {
2422 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2423
2424 insn[0] &= 0xfc;
2425 insn[0] |= 0x03;
2426 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2427 if (newrel != ELF32_R_TYPE (srel->r_info))
2428 {
2429 SNIP (2, 1, newrel);
2430 *again = TRUE;
2431 }
2432 }
2433
2434 else if (code == 3 && ssymval <= 32767 && ssymval >= -32768)
2435 {
2436 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2437
2438 insn[0] &= 0xfc;
2439 insn[0] |= 0x02;
2440 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2441 if (newrel != ELF32_R_TYPE (srel->r_info))
2442 {
2443 SNIP (2, 1, newrel);
2444 *again = TRUE;
2445 }
2446 }
2447
2448 /* Special case UIMM8 format: CMP #uimm8,Rdst. */
2449 else if (code == 2 && ssymval <= 255 && ssymval >= 16
2450 /* Decodable bits. */
2451 && (insn[0] & 0xfc) == 0x74
2452 /* Decodable bits. */
2453 && ((insn[1] & 0xf0) == 0x00))
2454 {
2455 int newrel;
2456
2457 insn[0] = 0x75;
2458 insn[1] = 0x50 | (insn[1] & 0x0f);
2459
2460 /* We can't relax this new opcode. */
2461 irel->r_addend = 0;
2462
2463 if (STACK_REL_P (ELF32_R_TYPE (srel->r_info)))
2464 newrel = R_RX_ABS8U;
2465 else
2466 newrel = R_RX_DIR8U;
2467
2468 SNIP (2, 1, newrel);
2469 *again = TRUE;
2470 }
2471
2472 else if (code == 2 && ssymval <= 127 && ssymval >= -128)
2473 {
2474 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2475
2476 insn[0] &= 0xfc;
2477 insn[0] |= 0x01;
2478 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2479 if (newrel != ELF32_R_TYPE (srel->r_info))
2480 {
2481 SNIP (2, 1, newrel);
2482 *again = TRUE;
2483 }
2484 }
2485
2486 /* Special case UIMM4 format: CMP, MUL, AND, OR. */
2487 else if (code == 1 && ssymval <= 15 && ssymval >= 0
2488 /* Decodable bits and immediate type. */
2489 && insn[0] == 0x75
2490 /* Decodable bits. */
2491 && (insn[1] & 0xc0) == 0x00)
2492 {
2493 static const int newop[4] = { 1, 3, 4, 5 };
2494
2495 insn[0] = 0x60 | newop[insn[1] >> 4];
2496 /* The register number doesn't move. */
2497
2498 /* We can't relax this new opcode. */
2499 irel->r_addend = 0;
2500
2501 move_reloc (irel, srel, -1);
2502
2503 SNIP (2, 1, R_RX_RH_UIMM4p8);
2504 *again = TRUE;
2505 }
2506
2507 /* Special case UIMM4 format: ADD -> ADD/SUB. */
2508 else if (code == 1 && ssymval <= 15 && ssymval >= -15
2509 /* Decodable bits and immediate type. */
2510 && insn[0] == 0x71
2511 /* Same register for source and destination. */
2512 && ((insn[1] >> 4) == (insn[1] & 0x0f)))
2513 {
2514 int newrel;
2515
2516 /* Note that we can't turn "add $0,Rs" into a NOP
2517 because the flags need to be set right. */
2518
2519 if (ssymval < 0)
2520 {
2521 insn[0] = 0x60; /* Subtract. */
2522 newrel = R_RX_RH_UNEG4p8;
2523 }
2524 else
2525 {
2526 insn[0] = 0x62; /* Add. */
2527 newrel = R_RX_RH_UIMM4p8;
2528 }
2529
2530 /* The register number is in the right place. */
2531
2532 /* We can't relax this new opcode. */
2533 irel->r_addend = 0;
2534
2535 move_reloc (irel, srel, -1);
2536
2537 SNIP (2, 1, newrel);
2538 *again = TRUE;
2539 }
2540 }
2541
2542 /* These are either matched with a DSP6 (2-byte base) or an id24
2543 (3-byte base). */
2544 if (irel->r_addend & RX_RELAXA_IMM12)
2545 {
2546 int dspcode, offset = 0;
2547 long ssymval;
2548
2549 GET_RELOC;
2550
2551 if ((insn[0] & 0xfc) == 0xfc)
2552 dspcode = 1; /* Just something with one byte operand. */
2553 else
2554 dspcode = insn[0] & 3;
2555 switch (dspcode)
2556 {
2557 case 0: offset = 2; break;
2558 case 1: offset = 3; break;
2559 case 2: offset = 4; break;
2560 case 3: offset = 2; break;
2561 }
2562
2563 /* These relocations sign-extend, so we must do signed compares. */
2564 ssymval = (long) symval;
2565
2566 code = (insn[1] >> 2) & 3;
2567 if (code == 0 && ssymval <= 8388607 && ssymval >= -8388608)
2568 {
2569 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2570
2571 insn[1] &= 0xf3;
2572 insn[1] |= 0x0c;
2573 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2574 if (newrel != ELF32_R_TYPE (srel->r_info))
2575 {
2576 SNIP (offset, 1, newrel);
2577 *again = TRUE;
2578 }
2579 }
2580
2581 else if (code == 3 && ssymval <= 32767 && ssymval >= -32768)
2582 {
2583 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2584
2585 insn[1] &= 0xf3;
2586 insn[1] |= 0x08;
2587 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2588 if (newrel != ELF32_R_TYPE (srel->r_info))
2589 {
2590 SNIP (offset, 1, newrel);
2591 *again = TRUE;
2592 }
2593 }
2594
2595 /* Special case UIMM8 format: MOV #uimm8,Rdst. */
2596 else if (code == 2 && ssymval <= 255 && ssymval >= 16
2597 /* Decodable bits. */
2598 && insn[0] == 0xfb
2599 /* Decodable bits. */
2600 && ((insn[1] & 0x03) == 0x02))
2601 {
2602 int newrel;
2603
2604 insn[0] = 0x75;
2605 insn[1] = 0x40 | (insn[1] >> 4);
2606
2607 /* We can't relax this new opcode. */
2608 irel->r_addend = 0;
2609
2610 if (STACK_REL_P (ELF32_R_TYPE (srel->r_info)))
2611 newrel = R_RX_ABS8U;
2612 else
2613 newrel = R_RX_DIR8U;
2614
2615 SNIP (2, 1, newrel);
2616 *again = TRUE;
2617 }
2618
2619 else if (code == 2 && ssymval <= 127 && ssymval >= -128)
2620 {
2621 unsigned int newrel = ELF32_R_TYPE(srel->r_info);
2622
2623 insn[1] &= 0xf3;
2624 insn[1] |= 0x04;
2625 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2626 if (newrel != ELF32_R_TYPE(srel->r_info))
2627 {
2628 SNIP (offset, 1, newrel);
2629 *again = TRUE;
2630 }
2631 }
2632
2633 /* Special case UIMM4 format: MOV #uimm4,Rdst. */
2634 else if (code == 1 && ssymval <= 15 && ssymval >= 0
2635 /* Decodable bits. */
2636 && insn[0] == 0xfb
2637 /* Decodable bits. */
2638 && ((insn[1] & 0x03) == 0x02))
2639 {
2640 insn[0] = 0x66;
2641 insn[1] = insn[1] >> 4;
2642
2643 /* We can't relax this new opcode. */
2644 irel->r_addend = 0;
2645
2646 move_reloc (irel, srel, -1);
2647
2648 SNIP (2, 1, R_RX_RH_UIMM4p8);
2649 *again = TRUE;
2650 }
2651 }
2652
2653 if (irel->r_addend & RX_RELAXA_BRA)
2654 {
2655 unsigned int newrel = ELF32_R_TYPE (srel->r_info);
2656 int max_pcrel3 = 4;
2657 int alignment_glue = 0;
2658
2659 GET_RELOC;
2660
2661 /* Branches over alignment chunks are problematic, as
2662 deleting bytes here makes the branch *further* away. We
2663 can be agressive with branches within this alignment
2664 block, but not branches outside it. */
2665 if ((prev_alignment == NULL
2666 || symval < (bfd_vma)(sec_start + prev_alignment->r_offset))
2667 && (next_alignment == NULL
2668 || symval > (bfd_vma)(sec_start + next_alignment->r_offset)))
2669 alignment_glue = section_alignment_glue;
2670
2671 if (ELF32_R_TYPE(srel[1].r_info) == R_RX_RH_RELAX
2672 && srel[1].r_addend & RX_RELAXA_BRA
2673 && srel[1].r_offset < irel->r_offset + pcrel)
2674 max_pcrel3 ++;
2675
2676 newrel = next_smaller_reloc (ELF32_R_TYPE (srel->r_info));
2677
2678 /* The values we compare PCREL with are not what you'd
2679 expect; they're off by a little to compensate for (1)
2680 where the reloc is relative to the insn, and (2) how much
2681 the insn is going to change when we relax it. */
2682
2683 /* These we have to decode. */
2684 switch (insn[0])
2685 {
2686 case 0x04: /* BRA pcdsp:24 */
2687 if (-32768 + alignment_glue <= pcrel
2688 && pcrel <= 32765 - alignment_glue)
2689 {
2690 insn[0] = 0x38;
2691 SNIP (3, 1, newrel);
2692 *again = TRUE;
2693 }
2694 break;
2695
2696 case 0x38: /* BRA pcdsp:16 */
2697 if (-128 + alignment_glue <= pcrel
2698 && pcrel <= 127 - alignment_glue)
2699 {
2700 insn[0] = 0x2e;
2701 SNIP (2, 1, newrel);
2702 *again = TRUE;
2703 }
2704 break;
2705
2706 case 0x2e: /* BRA pcdsp:8 */
2707 /* Note that there's a risk here of shortening things so
2708 much that we no longer fit this reloc; it *should*
2709 only happen when you branch across a branch, and that
2710 branch also devolves into BRA.S. "Real" code should
2711 be OK. */
2712 if (max_pcrel3 + alignment_glue <= pcrel
2713 && pcrel <= 10 - alignment_glue
2714 && allow_pcrel3)
2715 {
2716 insn[0] = 0x08;
2717 SNIP (1, 1, newrel);
2718 move_reloc (irel, srel, -1);
2719 *again = TRUE;
2720 }
2721 break;
2722
2723 case 0x05: /* BSR pcdsp:24 */
2724 if (-32768 + alignment_glue <= pcrel
2725 && pcrel <= 32765 - alignment_glue)
2726 {
2727 insn[0] = 0x39;
2728 SNIP (1, 1, newrel);
2729 *again = TRUE;
2730 }
2731 break;
2732
2733 case 0x3a: /* BEQ.W pcdsp:16 */
2734 case 0x3b: /* BNE.W pcdsp:16 */
2735 if (-128 + alignment_glue <= pcrel
2736 && pcrel <= 127 - alignment_glue)
2737 {
2738 insn[0] = 0x20 | (insn[0] & 1);
2739 SNIP (1, 1, newrel);
2740 *again = TRUE;
2741 }
2742 break;
2743
2744 case 0x20: /* BEQ.B pcdsp:8 */
2745 case 0x21: /* BNE.B pcdsp:8 */
2746 if (max_pcrel3 + alignment_glue <= pcrel
2747 && pcrel - alignment_glue <= 10
2748 && allow_pcrel3)
2749 {
2750 insn[0] = 0x10 | ((insn[0] & 1) << 3);
2751 SNIP (1, 1, newrel);
2752 move_reloc (irel, srel, -1);
2753 *again = TRUE;
2754 }
2755 break;
2756
2757 case 0x16: /* synthetic BNE dsp24 */
2758 case 0x1e: /* synthetic BEQ dsp24 */
2759 if (-32767 + alignment_glue <= pcrel
2760 && pcrel <= 32766 - alignment_glue
2761 && insn[1] == 0x04)
2762 {
2763 if (insn[0] == 0x16)
2764 insn[0] = 0x3b;
2765 else
2766 insn[0] = 0x3a;
2767 /* We snip out the bytes at the end else the reloc
2768 will get moved too, and too much. */
2769 SNIP (3, 2, newrel);
2770 move_reloc (irel, srel, -1);
2771 *again = TRUE;
2772 }
2773 break;
2774 }
2775
2776 /* Special case - synthetic conditional branches, pcrel24.
2777 Note that EQ and NE have been handled above. */
2778 if ((insn[0] & 0xf0) == 0x20
2779 && insn[1] == 0x06
2780 && insn[2] == 0x04
2781 && srel->r_offset != irel->r_offset + 1
2782 && -32767 + alignment_glue <= pcrel
2783 && pcrel <= 32766 - alignment_glue)
2784 {
2785 insn[1] = 0x05;
2786 insn[2] = 0x38;
2787 SNIP (5, 1, newrel);
2788 *again = TRUE;
2789 }
2790
2791 /* Special case - synthetic conditional branches, pcrel16 */
2792 if ((insn[0] & 0xf0) == 0x20
2793 && insn[1] == 0x05
2794 && insn[2] == 0x38
2795 && srel->r_offset != irel->r_offset + 1
2796 && -127 + alignment_glue <= pcrel
2797 && pcrel <= 126 - alignment_glue)
2798 {
2799 int cond = (insn[0] & 0x0f) ^ 0x01;
2800
2801 insn[0] = 0x20 | cond;
2802 /* By moving the reloc first, we avoid having
2803 delete_bytes move it also. */
2804 move_reloc (irel, srel, -2);
2805 SNIP (2, 3, newrel);
2806 *again = TRUE;
2807 }
2808 }
2809
2810 BFD_ASSERT (nrelocs == 0);
2811
2812 /* Special case - check MOV.bwl #IMM, dsp[reg] and see if we can
2813 use MOV.bwl #uimm:8, dsp:5[r7] format. This is tricky
2814 because it may have one or two relocations. */
2815 if ((insn[0] & 0xfc) == 0xf8
2816 && (insn[1] & 0x80) == 0x00
2817 && (insn[0] & 0x03) != 0x03)
2818 {
2819 int dcode, icode, reg, ioff, dscale, ilen;
2820 bfd_vma disp_val = 0;
2821 long imm_val = 0;
2822 Elf_Internal_Rela * disp_rel = 0;
2823 Elf_Internal_Rela * imm_rel = 0;
2824
2825 /* Reset this. */
2826 srel = irel;
2827
2828 dcode = insn[0] & 0x03;
2829 icode = (insn[1] >> 2) & 0x03;
2830 reg = (insn[1] >> 4) & 0x0f;
2831
2832 ioff = dcode == 1 ? 3 : dcode == 2 ? 4 : 2;
2833
2834 /* Figure out what the dispacement is. */
2835 if (dcode == 1 || dcode == 2)
2836 {
2837 /* There's a displacement. See if there's a reloc for it. */
2838 if (srel[1].r_offset == irel->r_offset + 2)
2839 {
2840 GET_RELOC;
2841 disp_val = symval;
2842 disp_rel = srel;
2843 }
2844 else
2845 {
2846 if (dcode == 1)
2847 disp_val = insn[2];
2848 else
2849 {
2850 #if RX_OPCODE_BIG_ENDIAN
2851 disp_val = insn[2] * 256 + insn[3];
2852 #else
2853 disp_val = insn[2] + insn[3] * 256;
2854 #endif
2855 }
2856 switch (insn[1] & 3)
2857 {
2858 case 1:
2859 disp_val *= 2;
2860 scale = 2;
2861 break;
2862 case 2:
2863 disp_val *= 4;
2864 scale = 4;
2865 break;
2866 }
2867 }
2868 }
2869
2870 dscale = scale;
2871
2872 /* Figure out what the immediate is. */
2873 if (srel[1].r_offset == irel->r_offset + ioff)
2874 {
2875 GET_RELOC;
2876 imm_val = (long) symval;
2877 imm_rel = srel;
2878 }
2879 else
2880 {
2881 unsigned char * ip = insn + ioff;
2882
2883 switch (icode)
2884 {
2885 case 1:
2886 /* For byte writes, we don't sign extend. Makes the math easier later. */
2887 if (scale == 1)
2888 imm_val = ip[0];
2889 else
2890 imm_val = (char) ip[0];
2891 break;
2892 case 2:
2893 #if RX_OPCODE_BIG_ENDIAN
2894 imm_val = ((char) ip[0] << 8) | ip[1];
2895 #else
2896 imm_val = ((char) ip[1] << 8) | ip[0];
2897 #endif
2898 break;
2899 case 3:
2900 #if RX_OPCODE_BIG_ENDIAN
2901 imm_val = ((char) ip[0] << 16) | (ip[1] << 8) | ip[2];
2902 #else
2903 imm_val = ((char) ip[2] << 16) | (ip[1] << 8) | ip[0];
2904 #endif
2905 break;
2906 case 0:
2907 #if RX_OPCODE_BIG_ENDIAN
2908 imm_val = (ip[0] << 24) | (ip[1] << 16) | (ip[2] << 8) | ip[3];
2909 #else
2910 imm_val = (ip[3] << 24) | (ip[2] << 16) | (ip[1] << 8) | ip[0];
2911 #endif
2912 break;
2913 }
2914 }
2915
2916 ilen = 2;
2917
2918 switch (dcode)
2919 {
2920 case 1:
2921 ilen += 1;
2922 break;
2923 case 2:
2924 ilen += 2;
2925 break;
2926 }
2927
2928 switch (icode)
2929 {
2930 case 1:
2931 ilen += 1;
2932 break;
2933 case 2:
2934 ilen += 2;
2935 break;
2936 case 3:
2937 ilen += 3;
2938 break;
2939 case 4:
2940 ilen += 4;
2941 break;
2942 }
2943
2944 /* The shortcut happens when the immediate is 0..255,
2945 register r0 to r7, and displacement (scaled) 0..31. */
2946
2947 if (0 <= imm_val && imm_val <= 255
2948 && 0 <= reg && reg <= 7
2949 && disp_val / dscale <= 31)
2950 {
2951 insn[0] = 0x3c | (insn[1] & 0x03);
2952 insn[1] = (((disp_val / dscale) << 3) & 0x80) | (reg << 4) | ((disp_val/dscale) & 0x0f);
2953 insn[2] = imm_val;
2954
2955 if (disp_rel)
2956 {
2957 int newrel = R_RX_NONE;
2958
2959 switch (dscale)
2960 {
2961 case 1:
2962 newrel = R_RX_RH_ABS5p8B;
2963 break;
2964 case 2:
2965 newrel = R_RX_RH_ABS5p8W;
2966 break;
2967 case 4:
2968 newrel = R_RX_RH_ABS5p8L;
2969 break;
2970 }
2971 disp_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (disp_rel->r_info), newrel);
2972 move_reloc (irel, disp_rel, -1);
2973 }
2974 if (imm_rel)
2975 {
2976 imm_rel->r_info = ELF32_R_INFO (ELF32_R_SYM (imm_rel->r_info), R_RX_DIR8U);
2977 move_reloc (disp_rel ? disp_rel : irel,
2978 imm_rel,
2979 irel->r_offset - imm_rel->r_offset + 2);
2980 }
2981
2982 SNIPNR (3, ilen - 3);
2983 *again = TRUE;
2984
2985 /* We can't relax this new opcode. */
2986 irel->r_addend = 0;
2987 }
2988 }
2989 }
2990
2991 /* We can't reliably relax branches to DIR3U_PCREL unless we know
2992 whatever they're branching over won't shrink any more. If we're
2993 basically done here, do one more pass just for branches - but
2994 don't request a pass after that one! */
2995 if (!*again && !allow_pcrel3)
2996 {
2997 bfd_boolean ignored;
2998
2999 elf32_rx_relax_section (abfd, sec, link_info, &ignored, TRUE);
3000 }
3001
3002 return TRUE;
3003
3004 error_return:
3005 if (free_contents != NULL)
3006 free (free_contents);
3007
3008 if (shndx_buf != NULL)
3009 {
3010 shndx_hdr->contents = NULL;
3011 free (shndx_buf);
3012 }
3013
3014 if (free_intsyms != NULL)
3015 free (free_intsyms);
3016
3017 return FALSE;
3018 }
3019
3020 static bfd_boolean
3021 elf32_rx_relax_section_wrapper (bfd * abfd,
3022 asection * sec,
3023 struct bfd_link_info * link_info,
3024 bfd_boolean * again)
3025 {
3026 return elf32_rx_relax_section (abfd, sec, link_info, again, FALSE);
3027 }
3028 \f
3029 /* Function to set the ELF flag bits. */
3030
3031 static bfd_boolean
3032 rx_elf_set_private_flags (bfd * abfd, flagword flags)
3033 {
3034 elf_elfheader (abfd)->e_flags = flags;
3035 elf_flags_init (abfd) = TRUE;
3036 return TRUE;
3037 }
3038
3039 static bfd_boolean no_warn_mismatch = FALSE;
3040 static bfd_boolean ignore_lma = TRUE;
3041
3042 void bfd_elf32_rx_set_target_flags (bfd_boolean, bfd_boolean);
3043
3044 void
3045 bfd_elf32_rx_set_target_flags (bfd_boolean user_no_warn_mismatch,
3046 bfd_boolean user_ignore_lma)
3047 {
3048 no_warn_mismatch = user_no_warn_mismatch;
3049 ignore_lma = user_ignore_lma;
3050 }
3051
3052 /* Converts FLAGS into a descriptive string.
3053 Returns a static pointer. */
3054
3055 static const char *
3056 describe_flags (flagword flags)
3057 {
3058 static char buf [128];
3059
3060 buf[0] = 0;
3061
3062 if (flags & E_FLAG_RX_64BIT_DOUBLES)
3063 strcat (buf, "64-bit doubles");
3064 else
3065 strcat (buf, "32-bit doubles");
3066
3067 if (flags & E_FLAG_RX_DSP)
3068 strcat (buf, ", dsp");
3069 else
3070 strcat (buf, ", no dsp");
3071
3072 if (flags & E_FLAG_RX_PID)
3073 strcat (buf, ", pid");
3074 else
3075 strcat (buf, ", no pid");
3076
3077 if (flags & E_FLAG_RX_ABI)
3078 strcat (buf, ", RX ABI");
3079 else
3080 strcat (buf, ", GCC ABI");
3081
3082 if (flags & E_FLAG_RX_SINSNS_SET)
3083 strcat (buf, flags & E_FLAG_RX_SINSNS_YES ? ", uses String instructions" : ", bans String instructions");
3084
3085 return buf;
3086 }
3087
3088 /* Merge backend specific data from an object file to the output
3089 object file when linking. */
3090
3091 static bfd_boolean
3092 rx_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
3093 {
3094 flagword old_flags;
3095 flagword new_flags;
3096 bfd_boolean error = FALSE;
3097
3098 new_flags = elf_elfheader (ibfd)->e_flags;
3099 old_flags = elf_elfheader (obfd)->e_flags;
3100
3101 if (!elf_flags_init (obfd))
3102 {
3103 /* First call, no flags set. */
3104 elf_flags_init (obfd) = TRUE;
3105 elf_elfheader (obfd)->e_flags = new_flags;
3106 }
3107 else if (old_flags != new_flags)
3108 {
3109 flagword known_flags;
3110
3111 if (old_flags & E_FLAG_RX_SINSNS_SET)
3112 {
3113 if ((new_flags & E_FLAG_RX_SINSNS_SET) == 0)
3114 {
3115 new_flags &= ~ E_FLAG_RX_SINSNS_MASK;
3116 new_flags |= (old_flags & E_FLAG_RX_SINSNS_MASK);
3117 }
3118 }
3119 else if (new_flags & E_FLAG_RX_SINSNS_SET)
3120 {
3121 old_flags &= ~ E_FLAG_RX_SINSNS_MASK;
3122 old_flags |= (new_flags & E_FLAG_RX_SINSNS_MASK);
3123 }
3124
3125 known_flags = E_FLAG_RX_ABI | E_FLAG_RX_64BIT_DOUBLES
3126 | E_FLAG_RX_DSP | E_FLAG_RX_PID | E_FLAG_RX_SINSNS_MASK;
3127
3128 if ((old_flags ^ new_flags) & known_flags)
3129 {
3130 /* Only complain if flag bits we care about do not match.
3131 Other bits may be set, since older binaries did use some
3132 deprecated flags. */
3133 if (no_warn_mismatch)
3134 {
3135 elf_elfheader (obfd)->e_flags = (new_flags | old_flags) & known_flags;
3136 }
3137 else
3138 {
3139 _bfd_error_handler ("There is a conflict merging the ELF header flags from %s",
3140 bfd_get_filename (ibfd));
3141 _bfd_error_handler (" the input file's flags: %s",
3142 describe_flags (new_flags));
3143 _bfd_error_handler (" the output file's flags: %s",
3144 describe_flags (old_flags));
3145 error = TRUE;
3146 }
3147 }
3148 else
3149 elf_elfheader (obfd)->e_flags = new_flags & known_flags;
3150 }
3151
3152 if (error)
3153 bfd_set_error (bfd_error_bad_value);
3154
3155 return !error;
3156 }
3157 \f
3158 static bfd_boolean
3159 rx_elf_print_private_bfd_data (bfd * abfd, void * ptr)
3160 {
3161 FILE * file = (FILE *) ptr;
3162 flagword flags;
3163
3164 BFD_ASSERT (abfd != NULL && ptr != NULL);
3165
3166 /* Print normal ELF private data. */
3167 _bfd_elf_print_private_bfd_data (abfd, ptr);
3168
3169 flags = elf_elfheader (abfd)->e_flags;
3170 fprintf (file, _("private flags = 0x%lx:"), (long) flags);
3171
3172 fprintf (file, "%s", describe_flags (flags));
3173 return TRUE;
3174 }
3175
3176 /* Return the MACH for an e_flags value. */
3177
3178 static int
3179 elf32_rx_machine (bfd * abfd ATTRIBUTE_UNUSED)
3180 {
3181 #if 0 /* FIXME: EF_RX_CPU_MASK collides with E_FLAG_RX_...
3182 Need to sort out how these flag bits are used.
3183 For now we assume that the flags are OK. */
3184 if ((elf_elfheader (abfd)->e_flags & EF_RX_CPU_MASK) == EF_RX_CPU_RX)
3185 #endif
3186 return bfd_mach_rx;
3187
3188 return 0;
3189 }
3190
3191 static bfd_boolean
3192 rx_elf_object_p (bfd * abfd)
3193 {
3194 int i;
3195 unsigned int u;
3196 Elf_Internal_Phdr *phdr = elf_tdata (abfd)->phdr;
3197 int nphdrs = elf_elfheader (abfd)->e_phnum;
3198 sec_ptr bsec;
3199 static int saw_be = FALSE;
3200
3201 /* We never want to automatically choose the non-swapping big-endian
3202 target. The user can only get that explicitly, such as with -I
3203 and objcopy. */
3204 if (abfd->xvec == &rx_elf32_be_ns_vec
3205 && abfd->target_defaulted)
3206 return FALSE;
3207
3208 /* BFD->target_defaulted is not set to TRUE when a target is chosen
3209 as a fallback, so we check for "scanning" to know when to stop
3210 using the non-swapping target. */
3211 if (abfd->xvec == &rx_elf32_be_ns_vec
3212 && saw_be)
3213 return FALSE;
3214 if (abfd->xvec == &rx_elf32_be_vec)
3215 saw_be = TRUE;
3216
3217 bfd_default_set_arch_mach (abfd, bfd_arch_rx,
3218 elf32_rx_machine (abfd));
3219
3220 /* For each PHDR in the object, we must find some section that
3221 corresponds (based on matching file offsets) and use its VMA
3222 information to reconstruct the p_vaddr field we clobbered when we
3223 wrote it out. */
3224 for (i=0; i<nphdrs; i++)
3225 {
3226 for (u=0; u<elf_tdata(abfd)->num_elf_sections; u++)
3227 {
3228 Elf_Internal_Shdr *sec = elf_tdata(abfd)->elf_sect_ptr[u];
3229
3230 if (phdr[i].p_filesz
3231 && phdr[i].p_offset <= (bfd_vma) sec->sh_offset
3232 && (bfd_vma)sec->sh_offset <= phdr[i].p_offset + (phdr[i].p_filesz - 1))
3233 {
3234 /* Found one! The difference between the two addresses,
3235 plus the difference between the two file offsets, is
3236 enough information to reconstruct the lma. */
3237
3238 /* Example where they aren't:
3239 PHDR[1] = lma fffc0100 offset 00002010 size 00000100
3240 SEC[6] = vma 00000050 offset 00002050 size 00000040
3241
3242 The correct LMA for the section is fffc0140 + (2050-2010).
3243 */
3244
3245 phdr[i].p_vaddr = sec->sh_addr + (sec->sh_offset - phdr[i].p_offset);
3246 break;
3247 }
3248 }
3249
3250 /* We must update the bfd sections as well, so we don't stop
3251 with one match. */
3252 bsec = abfd->sections;
3253 while (bsec)
3254 {
3255 if (phdr[i].p_filesz
3256 && phdr[i].p_vaddr <= bsec->vma
3257 && bsec->vma <= phdr[i].p_vaddr + (phdr[i].p_filesz - 1))
3258 {
3259 bsec->lma = phdr[i].p_paddr + (bsec->vma - phdr[i].p_vaddr);
3260 }
3261 bsec = bsec->next;
3262 }
3263 }
3264
3265 return TRUE;
3266 }
3267 \f
3268
3269 #ifdef DEBUG
3270 void
3271 rx_dump_symtab (bfd * abfd, void * internal_syms, void * external_syms)
3272 {
3273 size_t locsymcount;
3274 Elf_Internal_Sym * isymbuf;
3275 Elf_Internal_Sym * isymend;
3276 Elf_Internal_Sym * isym;
3277 Elf_Internal_Shdr * symtab_hdr;
3278 bfd_boolean free_internal = FALSE, free_external = FALSE;
3279 char * st_info_str;
3280 char * st_info_stb_str;
3281 char * st_other_str;
3282 char * st_shndx_str;
3283
3284 if (! internal_syms)
3285 {
3286 internal_syms = bfd_malloc (1000);
3287 free_internal = 1;
3288 }
3289 if (! external_syms)
3290 {
3291 external_syms = bfd_malloc (1000);
3292 free_external = 1;
3293 }
3294
3295 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3296 locsymcount = symtab_hdr->sh_size / get_elf_backend_data (abfd)->s->sizeof_sym;
3297 if (free_internal)
3298 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
3299 symtab_hdr->sh_info, 0,
3300 internal_syms, external_syms, NULL);
3301 else
3302 isymbuf = internal_syms;
3303 isymend = isymbuf + locsymcount;
3304
3305 for (isym = isymbuf ; isym < isymend ; isym++)
3306 {
3307 switch (ELF_ST_TYPE (isym->st_info))
3308 {
3309 case STT_FUNC: st_info_str = "STT_FUNC"; break;
3310 case STT_SECTION: st_info_str = "STT_SECTION"; break;
3311 case STT_FILE: st_info_str = "STT_FILE"; break;
3312 case STT_OBJECT: st_info_str = "STT_OBJECT"; break;
3313 case STT_TLS: st_info_str = "STT_TLS"; break;
3314 default: st_info_str = "";
3315 }
3316 switch (ELF_ST_BIND (isym->st_info))
3317 {
3318 case STB_LOCAL: st_info_stb_str = "STB_LOCAL"; break;
3319 case STB_GLOBAL: st_info_stb_str = "STB_GLOBAL"; break;
3320 default: st_info_stb_str = "";
3321 }
3322 switch (ELF_ST_VISIBILITY (isym->st_other))
3323 {
3324 case STV_DEFAULT: st_other_str = "STV_DEFAULT"; break;
3325 case STV_INTERNAL: st_other_str = "STV_INTERNAL"; break;
3326 case STV_PROTECTED: st_other_str = "STV_PROTECTED"; break;
3327 default: st_other_str = "";
3328 }
3329 switch (isym->st_shndx)
3330 {
3331 case SHN_ABS: st_shndx_str = "SHN_ABS"; break;
3332 case SHN_COMMON: st_shndx_str = "SHN_COMMON"; break;
3333 case SHN_UNDEF: st_shndx_str = "SHN_UNDEF"; break;
3334 default: st_shndx_str = "";
3335 }
3336
3337 printf ("isym = %p st_value = %lx st_size = %lx st_name = (%lu) %s "
3338 "st_info = (%d) %s %s st_other = (%d) %s st_shndx = (%d) %s\n",
3339 isym,
3340 (unsigned long) isym->st_value,
3341 (unsigned long) isym->st_size,
3342 isym->st_name,
3343 bfd_elf_string_from_elf_section (abfd, symtab_hdr->sh_link,
3344 isym->st_name),
3345 isym->st_info, st_info_str, st_info_stb_str,
3346 isym->st_other, st_other_str,
3347 isym->st_shndx, st_shndx_str);
3348 }
3349 if (free_internal)
3350 free (internal_syms);
3351 if (free_external)
3352 free (external_syms);
3353 }
3354
3355 char *
3356 rx_get_reloc (long reloc)
3357 {
3358 if (0 <= reloc && reloc < R_RX_max)
3359 return rx_elf_howto_table[reloc].name;
3360 return "";
3361 }
3362 #endif /* DEBUG */
3363
3364 \f
3365 /* We must take care to keep the on-disk copy of any code sections
3366 that are fully linked swapped if the target is big endian, to match
3367 the Renesas tools. */
3368
3369 /* The rule is: big endian object that are final-link executables,
3370 have code sections stored with 32-bit words swapped relative to
3371 what you'd get by default. */
3372
3373 static bfd_boolean
3374 rx_get_section_contents (bfd * abfd,
3375 sec_ptr section,
3376 void * location,
3377 file_ptr offset,
3378 bfd_size_type count)
3379 {
3380 int exec = (abfd->flags & EXEC_P) ? 1 : 0;
3381 int s_code = (section->flags & SEC_CODE) ? 1 : 0;
3382 bfd_boolean rv;
3383
3384 #ifdef DJDEBUG
3385 fprintf (stderr, "dj: get %ld %ld from %s %s e%d sc%d %08lx:%08lx\n",
3386 (long) offset, (long) count, section->name,
3387 bfd_big_endian(abfd) ? "be" : "le",
3388 exec, s_code, (long unsigned) section->filepos,
3389 (long unsigned) offset);
3390 #endif
3391
3392 if (exec && s_code && bfd_big_endian (abfd))
3393 {
3394 char * cloc = (char *) location;
3395 bfd_size_type cnt, end_cnt;
3396
3397 rv = TRUE;
3398
3399 /* Fetch and swap unaligned bytes at the beginning. */
3400 if (offset % 4)
3401 {
3402 char buf[4];
3403
3404 rv = _bfd_generic_get_section_contents (abfd, section, buf,
3405 (offset & -4), 4);
3406 if (!rv)
3407 return FALSE;
3408
3409 bfd_putb32 (bfd_getl32 (buf), buf);
3410
3411 cnt = 4 - (offset % 4);
3412 if (cnt > count)
3413 cnt = count;
3414
3415 memcpy (location, buf + (offset % 4), cnt);
3416
3417 count -= cnt;
3418 offset += cnt;
3419 cloc += count;
3420 }
3421
3422 end_cnt = count % 4;
3423
3424 /* Fetch and swap the middle bytes. */
3425 if (count >= 4)
3426 {
3427 rv = _bfd_generic_get_section_contents (abfd, section, cloc, offset,
3428 count - end_cnt);
3429 if (!rv)
3430 return FALSE;
3431
3432 for (cnt = count; cnt >= 4; cnt -= 4, cloc += 4)
3433 bfd_putb32 (bfd_getl32 (cloc), cloc);
3434 }
3435
3436 /* Fetch and swap the end bytes. */
3437 if (end_cnt > 0)
3438 {
3439 char buf[4];
3440
3441 /* Fetch the end bytes. */
3442 rv = _bfd_generic_get_section_contents (abfd, section, buf,
3443 offset + count - end_cnt, 4);
3444 if (!rv)
3445 return FALSE;
3446
3447 bfd_putb32 (bfd_getl32 (buf), buf);
3448 memcpy (cloc, buf, end_cnt);
3449 }
3450 }
3451 else
3452 rv = _bfd_generic_get_section_contents (abfd, section, location, offset, count);
3453
3454 return rv;
3455 }
3456
3457 #ifdef DJDEBUG
3458 static bfd_boolean
3459 rx2_set_section_contents (bfd * abfd,
3460 sec_ptr section,
3461 const void * location,
3462 file_ptr offset,
3463 bfd_size_type count)
3464 {
3465 bfd_size_type i;
3466
3467 fprintf (stderr, " set sec %s %08x loc %p offset %#x count %#x\n",
3468 section->name, (unsigned) section->vma, location, (int) offset, (int) count);
3469 for (i = 0; i < count; i++)
3470 {
3471 if (i % 16 == 0 && i > 0)
3472 fprintf (stderr, "\n");
3473
3474 if (i % 16 && i % 4 == 0)
3475 fprintf (stderr, " ");
3476
3477 if (i % 16 == 0)
3478 fprintf (stderr, " %08x:", (int) (section->vma + offset + i));
3479
3480 fprintf (stderr, " %02x", ((unsigned char *) location)[i]);
3481 }
3482 fprintf (stderr, "\n");
3483
3484 return _bfd_elf_set_section_contents (abfd, section, location, offset, count);
3485 }
3486 #define _bfd_elf_set_section_contents rx2_set_section_contents
3487 #endif
3488
3489 static bfd_boolean
3490 rx_set_section_contents (bfd * abfd,
3491 sec_ptr section,
3492 const void * location,
3493 file_ptr offset,
3494 bfd_size_type count)
3495 {
3496 bfd_boolean exec = (abfd->flags & EXEC_P) ? TRUE : FALSE;
3497 bfd_boolean s_code = (section->flags & SEC_CODE) ? TRUE : FALSE;
3498 bfd_boolean rv;
3499 char * swapped_data = NULL;
3500 bfd_size_type i;
3501 bfd_vma caddr = section->vma + offset;
3502 file_ptr faddr = 0;
3503 bfd_size_type scount;
3504
3505 #ifdef DJDEBUG
3506 bfd_size_type i;
3507
3508 fprintf (stderr, "\ndj: set %ld %ld to %s %s e%d sc%d\n",
3509 (long) offset, (long) count, section->name,
3510 bfd_big_endian (abfd) ? "be" : "le",
3511 exec, s_code);
3512
3513 for (i = 0; i < count; i++)
3514 {
3515 int a = section->vma + offset + i;
3516
3517 if (a % 16 == 0 && a > 0)
3518 fprintf (stderr, "\n");
3519
3520 if (a % 16 && a % 4 == 0)
3521 fprintf (stderr, " ");
3522
3523 if (a % 16 == 0 || i == 0)
3524 fprintf (stderr, " %08x:", (int) (section->vma + offset + i));
3525
3526 fprintf (stderr, " %02x", ((unsigned char *) location)[i]);
3527 }
3528
3529 fprintf (stderr, "\n");
3530 #endif
3531
3532 if (! exec || ! s_code || ! bfd_big_endian (abfd))
3533 return _bfd_elf_set_section_contents (abfd, section, location, offset, count);
3534
3535 while (count > 0 && caddr > 0 && caddr % 4)
3536 {
3537 switch (caddr % 4)
3538 {
3539 case 0: faddr = offset + 3; break;
3540 case 1: faddr = offset + 1; break;
3541 case 2: faddr = offset - 1; break;
3542 case 3: faddr = offset - 3; break;
3543 }
3544
3545 rv = _bfd_elf_set_section_contents (abfd, section, location, faddr, 1);
3546 if (! rv)
3547 return rv;
3548
3549 location ++;
3550 offset ++;
3551 count --;
3552 caddr ++;
3553 }
3554
3555 scount = (int)(count / 4) * 4;
3556 if (scount > 0)
3557 {
3558 char * cloc = (char *) location;
3559
3560 swapped_data = (char *) bfd_alloc (abfd, count);
3561
3562 for (i = 0; i < count; i += 4)
3563 {
3564 bfd_vma v = bfd_getl32 (cloc + i);
3565 bfd_putb32 (v, swapped_data + i);
3566 }
3567
3568 rv = _bfd_elf_set_section_contents (abfd, section, swapped_data, offset, scount);
3569
3570 if (!rv)
3571 return rv;
3572 }
3573
3574 count -= scount;
3575 location += scount;
3576 offset += scount;
3577
3578 if (count > 0)
3579 {
3580 caddr = section->vma + offset;
3581 while (count > 0)
3582 {
3583 switch (caddr % 4)
3584 {
3585 case 0: faddr = offset + 3; break;
3586 case 1: faddr = offset + 1; break;
3587 case 2: faddr = offset - 1; break;
3588 case 3: faddr = offset - 3; break;
3589 }
3590 rv = _bfd_elf_set_section_contents (abfd, section, location, faddr, 1);
3591 if (! rv)
3592 return rv;
3593
3594 location ++;
3595 offset ++;
3596 count --;
3597 caddr ++;
3598 }
3599 }
3600
3601 return TRUE;
3602 }
3603
3604 static bfd_boolean
3605 rx_final_link (bfd * abfd, struct bfd_link_info * info)
3606 {
3607 asection * o;
3608
3609 for (o = abfd->sections; o != NULL; o = o->next)
3610 {
3611 #ifdef DJDEBUG
3612 fprintf (stderr, "sec %s fl %x vma %lx lma %lx size %lx raw %lx\n",
3613 o->name, o->flags, o->vma, o->lma, o->size, o->rawsize);
3614 #endif
3615 if (o->flags & SEC_CODE
3616 && bfd_big_endian (abfd)
3617 && o->size % 4)
3618 {
3619 #ifdef DJDEBUG
3620 fprintf (stderr, "adjusting...\n");
3621 #endif
3622 o->size += 4 - (o->size % 4);
3623 }
3624 }
3625
3626 return bfd_elf_final_link (abfd, info);
3627 }
3628
3629 static bfd_boolean
3630 elf32_rx_modify_program_headers (bfd * abfd ATTRIBUTE_UNUSED,
3631 struct bfd_link_info * info ATTRIBUTE_UNUSED)
3632 {
3633 const struct elf_backend_data * bed;
3634 struct elf_obj_tdata * tdata;
3635 Elf_Internal_Phdr * phdr;
3636 unsigned int count;
3637 unsigned int i;
3638
3639 bed = get_elf_backend_data (abfd);
3640 tdata = elf_tdata (abfd);
3641 phdr = tdata->phdr;
3642 count = elf_program_header_size (abfd) / bed->s->sizeof_phdr;
3643
3644 if (ignore_lma)
3645 for (i = count; i-- != 0;)
3646 if (phdr[i].p_type == PT_LOAD)
3647 {
3648 /* The Renesas tools expect p_paddr to be zero. However,
3649 there is no other way to store the writable data in ROM for
3650 startup initialization. So, we let the linker *think*
3651 we're using paddr and vaddr the "usual" way, but at the
3652 last minute we move the paddr into the vaddr (which is what
3653 the simulator uses) and zero out paddr. Note that this
3654 does not affect the section headers, just the program
3655 headers. We hope. */
3656 phdr[i].p_vaddr = phdr[i].p_paddr;
3657 #if 0 /* If we zero out p_paddr, then the LMA in the section table
3658 becomes wrong. */
3659 phdr[i].p_paddr = 0;
3660 #endif
3661 }
3662
3663 return TRUE;
3664 }
3665
3666 /* The default literal sections should always be marked as "code" (i.e.,
3667 SHF_EXECINSTR). This is particularly important for big-endian mode
3668 when we do not want their contents byte reversed. */
3669 static const struct bfd_elf_special_section elf32_rx_special_sections[] =
3670 {
3671 { STRING_COMMA_LEN (".init_array"), 0, SHT_INIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR },
3672 { STRING_COMMA_LEN (".fini_array"), 0, SHT_FINI_ARRAY, SHF_ALLOC + SHF_EXECINSTR },
3673 { STRING_COMMA_LEN (".preinit_array"), 0, SHT_PREINIT_ARRAY, SHF_ALLOC + SHF_EXECINSTR },
3674 { NULL, 0, 0, 0, 0 }
3675 };
3676 \f
3677 typedef struct {
3678 bfd *abfd;
3679 struct bfd_link_info *info;
3680 bfd_vma table_start;
3681 int table_size;
3682 bfd_vma *table_handlers;
3683 bfd_vma table_default_handler;
3684 struct bfd_link_hash_entry **table_entries;
3685 struct bfd_link_hash_entry *table_default_entry;
3686 FILE *mapfile;
3687 } RX_Table_Info;
3688
3689 static bfd_boolean
3690 rx_table_find (struct bfd_hash_entry *vent, void *vinfo)
3691 {
3692 RX_Table_Info *info = (RX_Table_Info *)vinfo;
3693 struct bfd_link_hash_entry *ent = (struct bfd_link_hash_entry *)vent;
3694 const char *name; /* of the symbol we've found */
3695 asection *sec;
3696 struct bfd *abfd;
3697 int idx;
3698 const char *tname; /* name of the table */
3699 bfd_vma start_addr, end_addr;
3700 char *buf;
3701 struct bfd_link_hash_entry * h;
3702
3703 /* We're looking for globally defined symbols of the form
3704 $tablestart$<NAME>. */
3705 if (ent->type != bfd_link_hash_defined
3706 && ent->type != bfd_link_hash_defweak)
3707 return TRUE;
3708
3709 name = ent->root.string;
3710 sec = ent->u.def.section;
3711 abfd = sec->owner;
3712
3713 if (strncmp (name, "$tablestart$", 12))
3714 return TRUE;
3715
3716 sec->flags |= SEC_KEEP;
3717
3718 tname = name + 12;
3719
3720 start_addr = ent->u.def.value;
3721
3722 /* At this point, we can't build the table but we can (and must)
3723 find all the related symbols and mark their sections as SEC_KEEP
3724 so we don't garbage collect them. */
3725
3726 buf = (char *) malloc (12 + 10 + strlen (tname));
3727
3728 sprintf (buf, "$tableend$%s", tname);
3729 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3730 if (!h || (h->type != bfd_link_hash_defined
3731 && h->type != bfd_link_hash_defweak))
3732 {
3733 _bfd_error_handler (_("%B:%A: table %s missing corresponding %s"),
3734 abfd, sec, name, buf);
3735 return TRUE;
3736 }
3737
3738 if (h->u.def.section != ent->u.def.section)
3739 {
3740 _bfd_error_handler (_("%B:%A: %s and %s must be in the same input section"),
3741 h->u.def.section->owner, h->u.def.section,
3742 name, buf);
3743 return TRUE;
3744 }
3745
3746 end_addr = h->u.def.value;
3747
3748 sprintf (buf, "$tableentry$default$%s", tname);
3749 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3750 if (h && (h->type == bfd_link_hash_defined
3751 || h->type == bfd_link_hash_defweak))
3752 {
3753 h->u.def.section->flags |= SEC_KEEP;
3754 }
3755
3756 for (idx = 0; idx < (int) (end_addr - start_addr) / 4; idx ++)
3757 {
3758 sprintf (buf, "$tableentry$%d$%s", idx, tname);
3759 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3760 if (h && (h->type == bfd_link_hash_defined
3761 || h->type == bfd_link_hash_defweak))
3762 {
3763 h->u.def.section->flags |= SEC_KEEP;
3764 }
3765 }
3766
3767 /* Return TRUE to keep scanning, FALSE to end the traversal. */
3768 return TRUE;
3769 }
3770
3771 /* We need to check for table entry symbols and build the tables, and
3772 we need to do it before the linker does garbage collection. This function is
3773 called once per input object file. */
3774 static bfd_boolean
3775 rx_check_directives
3776 (bfd * abfd ATTRIBUTE_UNUSED,
3777 struct bfd_link_info * info ATTRIBUTE_UNUSED)
3778 {
3779 RX_Table_Info stuff;
3780
3781 stuff.abfd = abfd;
3782 stuff.info = info;
3783 bfd_hash_traverse (&(info->hash->table), rx_table_find, &stuff);
3784
3785 return TRUE;
3786 }
3787
3788 \f
3789 static bfd_boolean
3790 rx_table_map_2 (struct bfd_hash_entry *vent, void *vinfo)
3791 {
3792 RX_Table_Info *info = (RX_Table_Info *)vinfo;
3793 struct bfd_link_hash_entry *ent = (struct bfd_link_hash_entry *)vent;
3794 int idx;
3795 const char *name;
3796 bfd_vma addr;
3797
3798 /* See if the symbol ENT has an address listed in the table, and
3799 isn't a debug/special symbol. If so, put it in the table. */
3800
3801 if (ent->type != bfd_link_hash_defined
3802 && ent->type != bfd_link_hash_defweak)
3803 return TRUE;
3804
3805 name = ent->root.string;
3806
3807 if (name[0] == '$' || name[0] == '.' || name[0] < ' ')
3808 return TRUE;
3809
3810 addr = (ent->u.def.value
3811 + ent->u.def.section->output_section->vma
3812 + ent->u.def.section->output_offset);
3813
3814 for (idx = 0; idx < info->table_size; idx ++)
3815 if (addr == info->table_handlers[idx])
3816 info->table_entries[idx] = ent;
3817
3818 if (addr == info->table_default_handler)
3819 info->table_default_entry = ent;
3820
3821 return TRUE;
3822 }
3823
3824 static bfd_boolean
3825 rx_table_map (struct bfd_hash_entry *vent, void *vinfo)
3826 {
3827 RX_Table_Info *info = (RX_Table_Info *)vinfo;
3828 struct bfd_link_hash_entry *ent = (struct bfd_link_hash_entry *)vent;
3829 const char *name; /* of the symbol we've found */
3830 int idx;
3831 const char *tname; /* name of the table */
3832 bfd_vma start_addr, end_addr;
3833 char *buf;
3834 struct bfd_link_hash_entry * h;
3835 int need_elipses;
3836
3837 /* We're looking for globally defined symbols of the form
3838 $tablestart$<NAME>. */
3839 if (ent->type != bfd_link_hash_defined
3840 && ent->type != bfd_link_hash_defweak)
3841 return TRUE;
3842
3843 name = ent->root.string;
3844
3845 if (strncmp (name, "$tablestart$", 12))
3846 return TRUE;
3847
3848 tname = name + 12;
3849 start_addr = (ent->u.def.value
3850 + ent->u.def.section->output_section->vma
3851 + ent->u.def.section->output_offset);
3852
3853 buf = (char *) malloc (12 + 10 + strlen (tname));
3854
3855 sprintf (buf, "$tableend$%s", tname);
3856 end_addr = get_symbol_value_maybe (buf, info->info);
3857
3858 sprintf (buf, "$tableentry$default$%s", tname);
3859 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3860 if (h)
3861 {
3862 info->table_default_handler = (h->u.def.value
3863 + h->u.def.section->output_section->vma
3864 + h->u.def.section->output_offset);
3865 }
3866 else
3867 /* Zero is a valid handler address! */
3868 info->table_default_handler = (bfd_vma) (-1);
3869 info->table_default_entry = NULL;
3870
3871 info->table_start = start_addr;
3872 info->table_size = (int) (end_addr - start_addr) / 4;
3873 info->table_handlers = (bfd_vma *) malloc (info->table_size * sizeof (bfd_vma));
3874 info->table_entries = (struct bfd_link_hash_entry **) malloc (info->table_size * sizeof (struct bfd_link_hash_entry));
3875
3876 for (idx = 0; idx < (int) (end_addr - start_addr) / 4; idx ++)
3877 {
3878 sprintf (buf, "$tableentry$%d$%s", idx, tname);
3879 h = bfd_link_hash_lookup (info->info->hash, buf, FALSE, FALSE, TRUE);
3880 if (h && (h->type == bfd_link_hash_defined
3881 || h->type == bfd_link_hash_defweak))
3882 {
3883 info->table_handlers[idx] = (h->u.def.value
3884 + h->u.def.section->output_section->vma
3885 + h->u.def.section->output_offset);
3886 }
3887 else
3888 info->table_handlers[idx] = info->table_default_handler;
3889 info->table_entries[idx] = NULL;
3890 }
3891
3892 free (buf);
3893
3894 bfd_hash_traverse (&(info->info->hash->table), rx_table_map_2, info);
3895
3896 fprintf (info->mapfile, "\nRX Vector Table: %s has %d entries at 0x%08" BFD_VMA_FMT "x\n\n",
3897 tname, info->table_size, start_addr);
3898
3899 if (info->table_default_entry)
3900 fprintf (info->mapfile, " default handler is: %s at 0x%08" BFD_VMA_FMT "x\n",
3901 info->table_default_entry->root.string,
3902 info->table_default_handler);
3903 else if (info->table_default_handler != (bfd_vma)(-1))
3904 fprintf (info->mapfile, " default handler is at 0x%08" BFD_VMA_FMT "x\n",
3905 info->table_default_handler);
3906 else
3907 fprintf (info->mapfile, " no default handler\n");
3908
3909 need_elipses = 1;
3910 for (idx = 0; idx < info->table_size; idx ++)
3911 {
3912 if (info->table_handlers[idx] == info->table_default_handler)
3913 {
3914 if (need_elipses)
3915 fprintf (info->mapfile, " . . .\n");
3916 need_elipses = 0;
3917 continue;
3918 }
3919 need_elipses = 1;
3920
3921 fprintf (info->mapfile, " 0x%08" BFD_VMA_FMT "x [%3d] ", start_addr + 4 * idx, idx);
3922
3923 if (info->table_handlers[idx] == (bfd_vma) (-1))
3924 fprintf (info->mapfile, "(no handler found)\n");
3925
3926 else if (info->table_handlers[idx] == info->table_default_handler)
3927 {
3928 if (info->table_default_entry)
3929 fprintf (info->mapfile, "(default)\n");
3930 else
3931 fprintf (info->mapfile, "(default)\n");
3932 }
3933
3934 else if (info->table_entries[idx])
3935 {
3936 fprintf (info->mapfile, "0x%08" BFD_VMA_FMT "x %s\n", info->table_handlers[idx], info->table_entries[idx]->root.string);
3937 }
3938
3939 else
3940 {
3941 fprintf (info->mapfile, "0x%08" BFD_VMA_FMT "x ???\n", info->table_handlers[idx]);
3942 }
3943 }
3944 if (need_elipses)
3945 fprintf (info->mapfile, " . . .\n");
3946
3947 return TRUE;
3948 }
3949
3950 void
3951 rx_additional_link_map_text (bfd *obfd, struct bfd_link_info *info, FILE *mapfile)
3952 {
3953 /* We scan the symbol table looking for $tableentry$'s, and for
3954 each, try to deduce which handlers go with which entries. */
3955
3956 RX_Table_Info stuff;
3957
3958 stuff.abfd = obfd;
3959 stuff.info = info;
3960 stuff.mapfile = mapfile;
3961 bfd_hash_traverse (&(info->hash->table), rx_table_map, &stuff);
3962 }
3963
3964 \f
3965 #define ELF_ARCH bfd_arch_rx
3966 #define ELF_MACHINE_CODE EM_RX
3967 #define ELF_MAXPAGESIZE 0x1000
3968
3969 #define TARGET_BIG_SYM rx_elf32_be_vec
3970 #define TARGET_BIG_NAME "elf32-rx-be"
3971
3972 #define TARGET_LITTLE_SYM rx_elf32_le_vec
3973 #define TARGET_LITTLE_NAME "elf32-rx-le"
3974
3975 #define elf_info_to_howto_rel NULL
3976 #define elf_info_to_howto rx_info_to_howto_rela
3977 #define elf_backend_object_p rx_elf_object_p
3978 #define elf_backend_relocate_section rx_elf_relocate_section
3979 #define elf_symbol_leading_char ('_')
3980 #define elf_backend_can_gc_sections 1
3981 #define elf_backend_modify_program_headers elf32_rx_modify_program_headers
3982
3983 #define bfd_elf32_bfd_reloc_type_lookup rx_reloc_type_lookup
3984 #define bfd_elf32_bfd_reloc_name_lookup rx_reloc_name_lookup
3985 #define bfd_elf32_bfd_set_private_flags rx_elf_set_private_flags
3986 #define bfd_elf32_bfd_merge_private_bfd_data rx_elf_merge_private_bfd_data
3987 #define bfd_elf32_bfd_print_private_bfd_data rx_elf_print_private_bfd_data
3988 #define bfd_elf32_get_section_contents rx_get_section_contents
3989 #define bfd_elf32_set_section_contents rx_set_section_contents
3990 #define bfd_elf32_bfd_final_link rx_final_link
3991 #define bfd_elf32_bfd_relax_section elf32_rx_relax_section_wrapper
3992 #define elf_backend_special_sections elf32_rx_special_sections
3993 #define elf_backend_check_directives rx_check_directives
3994
3995 #include "elf32-target.h"
3996
3997 /* We define a second big-endian target that doesn't have the custom
3998 section get/set hooks, for times when we want to preserve the
3999 pre-swapped .text sections (like objcopy). */
4000
4001 #undef TARGET_BIG_SYM
4002 #define TARGET_BIG_SYM rx_elf32_be_ns_vec
4003 #undef TARGET_BIG_NAME
4004 #define TARGET_BIG_NAME "elf32-rx-be-ns"
4005 #undef TARGET_LITTLE_SYM
4006
4007 #undef bfd_elf32_get_section_contents
4008 #undef bfd_elf32_set_section_contents
4009
4010 #undef elf32_bed
4011 #define elf32_bed elf32_rx_be_ns_bed
4012
4013 #include "elf32-target.h"
GDB Binutils - Deliverables
This page took 0.110605 seconds and 5 git commands to generate.