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[deliverable/binutils-gdb.git] / bfd / elf32-m32r.c
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252b5132 1/* M32R-specific support for 32-bit ELF.
2571583a 2 Copyright (C) 1996-2017 Free Software Foundation, Inc.
252b5132 3
88845958 4 This file is part of BFD, the Binary File Descriptor library.
252b5132 5
88845958
NC
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
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
88845958 9 (at your option) any later version.
252b5132 10
88845958
NC
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.
252b5132 15
88845958
NC
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
cd123cb7
NC
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
252b5132 20
252b5132 21#include "sysdep.h"
3db64b00 22#include "bfd.h"
252b5132
RH
23#include "libbfd.h"
24#include "elf-bfd.h"
25#include "elf/m32r.h"
26
252b5132
RH
27#define NOP_INSN 0x7000
28#define MAKE_PARALLEL(insn) ((insn) | 0x8000)
29
30/* Use REL instead of RELA to save space.
31 This only saves space in libraries and object files, but perhaps
32 relocs will be put in ROM? All in all though, REL relocs are a pain
33 to work with. */
6edf0760 34/* #define USE_REL 1
acf8aed4
AM
35
36#ifndef USE_REL
37#define USE_REL 0
6edf0760 38#endif */
47b0e7ad 39/* Use RELA. But use REL to link old objects for backwords compatibility. */
6edf0760
NC
40
41/* Functions for the M32R ELF linker. */
41978308 42
6edf0760
NC
43/* The name of the dynamic interpreter. This is put in the .interp
44 section. */
41978308 45
6edf0760 46#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
41978308 47
6edf0760 48/* The nop opcode we use. */
41978308 49
6edf0760 50#define M32R_NOP 0x7000f000
41978308 51
6edf0760 52#define PLT_EMPTY 0x10101010 /* RIE -> RIE */
41978308 53
6edf0760
NC
54/* The size in bytes of an entry in the procedure linkage table. */
55
56#define PLT_ENTRY_SIZE 20
57#define PLT_HEADER_SIZE 20
41978308 58
6edf0760
NC
59/* The first one entries in a procedure linkage table are reserved,
60 and the initial contents are unimportant (we zero them out).
61 Subsequent entries look like this. */
41978308 62
6edf0760
NC
63#define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
64#define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
65#define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
66#define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
67#define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 68
6edf0760
NC
69#define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
70#define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
71#define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
72#define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
73#define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 74
6edf0760
NC
75#define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
76#define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
77#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
78#define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
79#define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
80#define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
81#define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
82
252b5132 83
47b0e7ad 84/* Utility to actually perform an R_M32R_10_PCREL reloc. */
252b5132 85
47b0e7ad
NC
86static bfd_reloc_status_type
87m32r_elf_do_10_pcrel_reloc (bfd *abfd,
88 reloc_howto_type *howto,
89 asection *input_section,
90 bfd_byte *data,
91 bfd_vma offset,
92 asection *symbol_section ATTRIBUTE_UNUSED,
93 bfd_vma symbol_value,
94 bfd_vma addend)
95{
96 bfd_signed_vma relocation;
97 unsigned long x;
98 bfd_reloc_status_type status;
252b5132 99
47b0e7ad
NC
100 /* Sanity check the address (offset in section). */
101 if (offset > bfd_get_section_limit (abfd, input_section))
102 return bfd_reloc_outofrange;
252b5132 103
47b0e7ad
NC
104 relocation = symbol_value + addend;
105 /* Make it pc relative. */
106 relocation -= (input_section->output_section->vma
107 + input_section->output_offset);
108 /* These jumps mask off the lower two bits of the current address
109 before doing pcrel calculations. */
110 relocation -= (offset & -(bfd_vma) 4);
252b5132 111
47b0e7ad
NC
112 if (relocation < -0x200 || relocation > 0x1ff)
113 status = bfd_reloc_overflow;
114 else
115 status = bfd_reloc_ok;
252b5132 116
47b0e7ad
NC
117 x = bfd_get_16 (abfd, data + offset);
118 relocation >>= howto->rightshift;
119 relocation <<= howto->bitpos;
120 x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
121 bfd_put_16 (abfd, (bfd_vma) x, data + offset);
252b5132 122
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NC
123 return status;
124}
252b5132 125
47b0e7ad 126/* Handle the R_M32R_10_PCREL reloc. */
252b5132 127
47b0e7ad
NC
128static bfd_reloc_status_type
129m32r_elf_10_pcrel_reloc (bfd * abfd,
130 arelent * reloc_entry,
131 asymbol * symbol,
132 void * data,
133 asection * input_section,
134 bfd * output_bfd,
135 char ** error_message ATTRIBUTE_UNUSED)
136{
137 /* This part is from bfd_elf_generic_reloc. */
138 if (output_bfd != NULL
139 && (symbol->flags & BSF_SECTION_SYM) == 0
140 && (! reloc_entry->howto->partial_inplace
141 || reloc_entry->addend == 0))
142 {
143 reloc_entry->address += input_section->output_offset;
144 return bfd_reloc_ok;
145 }
252b5132 146
47b0e7ad
NC
147 if (output_bfd != NULL)
148 /* FIXME: See bfd_perform_relocation. Is this right? */
149 return bfd_reloc_continue;
252b5132 150
47b0e7ad
NC
151 return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
152 input_section,
153 data, reloc_entry->address,
154 symbol->section,
155 (symbol->value
156 + symbol->section->output_section->vma
157 + symbol->section->output_offset),
158 reloc_entry->addend);
159}
252b5132 160
47b0e7ad
NC
161/* Do generic partial_inplace relocation.
162 This is a local replacement for bfd_elf_generic_reloc. */
252b5132 163
47b0e7ad
NC
164static bfd_reloc_status_type
165m32r_elf_generic_reloc (bfd *input_bfd,
166 arelent *reloc_entry,
167 asymbol *symbol,
168 void * data,
169 asection *input_section,
170 bfd *output_bfd,
171 char **error_message ATTRIBUTE_UNUSED)
172{
173 bfd_reloc_status_type ret;
174 bfd_vma relocation;
175 bfd_byte *inplace_address;
252b5132 176
47b0e7ad
NC
177 /* This part is from bfd_elf_generic_reloc.
178 If we're relocating, and this an external symbol, we don't want
179 to change anything. */
180 if (output_bfd != NULL
181 && (symbol->flags & BSF_SECTION_SYM) == 0
182 && reloc_entry->addend == 0)
183 {
184 reloc_entry->address += input_section->output_offset;
185 return bfd_reloc_ok;
186 }
6edf0760 187
47b0e7ad
NC
188 /* Now do the reloc in the usual way.
189 ??? It would be nice to call bfd_elf_generic_reloc here,
190 but we have partial_inplace set. bfd_elf_generic_reloc will
191 pass the handling back to bfd_install_relocation which will install
192 a section relative addend which is wrong. */
6edf0760 193
47b0e7ad
NC
194 /* Sanity check the address (offset in section). */
195 if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
196 return bfd_reloc_outofrange;
6edf0760 197
47b0e7ad
NC
198 ret = bfd_reloc_ok;
199 if (bfd_is_und_section (symbol->section)
200 && output_bfd == NULL)
201 ret = bfd_reloc_undefined;
6edf0760 202
47b0e7ad
NC
203 if (bfd_is_com_section (symbol->section)
204 || output_bfd != NULL)
205 relocation = 0;
206 else
207 relocation = symbol->value;
6edf0760 208
47b0e7ad
NC
209 /* Only do this for a final link. */
210 if (output_bfd == NULL)
211 {
212 relocation += symbol->section->output_section->vma;
213 relocation += symbol->section->output_offset;
214 }
6edf0760 215
47b0e7ad
NC
216 relocation += reloc_entry->addend;
217 inplace_address = (bfd_byte *) data + reloc_entry->address;
6edf0760 218
47b0e7ad
NC
219#define DOIT(x) \
220 x = ( (x & ~reloc_entry->howto->dst_mask) | \
221 (((x & reloc_entry->howto->src_mask) + relocation) & \
222 reloc_entry->howto->dst_mask))
6edf0760 223
47b0e7ad
NC
224 switch (reloc_entry->howto->size)
225 {
226 case 1:
227 {
228 short x = bfd_get_16 (input_bfd, inplace_address);
229 DOIT (x);
230 bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
231 }
232 break;
233 case 2:
234 {
235 unsigned long x = bfd_get_32 (input_bfd, inplace_address);
236 DOIT (x);
237 bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
238 }
239 break;
240 default:
241 BFD_ASSERT (0);
242 }
6edf0760 243
47b0e7ad
NC
244 if (output_bfd != NULL)
245 reloc_entry->address += input_section->output_offset;
6edf0760 246
47b0e7ad
NC
247 return ret;
248}
6edf0760 249
47b0e7ad
NC
250/* Handle the R_M32R_SDA16 reloc.
251 This reloc is used to compute the address of objects in the small data area
252 and to perform loads and stores from that area.
253 The lower 16 bits are sign extended and added to the register specified
254 in the instruction, which is assumed to point to _SDA_BASE_. */
6edf0760 255
47b0e7ad
NC
256static bfd_reloc_status_type
257m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
258 arelent *reloc_entry,
259 asymbol *symbol,
260 void * data ATTRIBUTE_UNUSED,
261 asection *input_section,
262 bfd *output_bfd,
263 char **error_message ATTRIBUTE_UNUSED)
264{
265 /* This part is from bfd_elf_generic_reloc. */
266 if (output_bfd != NULL
267 && (symbol->flags & BSF_SECTION_SYM) == 0
268 && (! reloc_entry->howto->partial_inplace
269 || reloc_entry->addend == 0))
270 {
271 reloc_entry->address += input_section->output_offset;
272 return bfd_reloc_ok;
273 }
6edf0760 274
47b0e7ad
NC
275 if (output_bfd != NULL)
276 /* FIXME: See bfd_perform_relocation. Is this right? */
277 return bfd_reloc_continue;
6edf0760 278
47b0e7ad
NC
279 /* FIXME: not sure what to do here yet. But then again, the linker
280 may never call us. */
281 abort ();
282}
6edf0760 283
47b0e7ad
NC
284\f
285/* Handle the R_M32R_HI16_[SU]LO relocs.
286 HI16_SLO is for the add3 and load/store with displacement instructions.
287 HI16_ULO is for the or3 instruction.
288 For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
289 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
290 we must add one to the high 16 bytes (which will get subtracted off when
291 the low 16 bits are added).
292 These relocs have to be done in combination with an R_M32R_LO16 reloc
293 because there is a carry from the LO16 to the HI16. Here we just save
294 the information we need; we do the actual relocation when we see the LO16.
295 This code is copied from the elf32-mips.c. We also support an arbitrary
296 number of HI16 relocs to be associated with a single LO16 reloc. The
297 assembler sorts the relocs to ensure each HI16 immediately precedes its
298 LO16. However if there are multiple copies, the assembler may not find
299 the real LO16 so it picks the first one it finds. */
6edf0760 300
47b0e7ad
NC
301struct m32r_hi16
302{
303 struct m32r_hi16 *next;
304 bfd_byte *addr;
305 bfd_vma addend;
306};
307
308/* FIXME: This should not be a static variable. */
309
310static struct m32r_hi16 *m32r_hi16_list;
311
312static bfd_reloc_status_type
313m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
314 arelent *reloc_entry,
315 asymbol *symbol,
316 void * data,
317 asection *input_section,
318 bfd *output_bfd,
319 char **error_message ATTRIBUTE_UNUSED)
320{
321 bfd_reloc_status_type ret;
322 bfd_vma relocation;
323 struct m32r_hi16 *n;
324
325 /* This part is from bfd_elf_generic_reloc.
326 If we're relocating, and this an external symbol, we don't want
327 to change anything. */
328 if (output_bfd != NULL
329 && (symbol->flags & BSF_SECTION_SYM) == 0
330 && reloc_entry->addend == 0)
331 {
332 reloc_entry->address += input_section->output_offset;
333 return bfd_reloc_ok;
334 }
335
336 /* Sanity check the address (offset in section). */
337 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
338 return bfd_reloc_outofrange;
339
340 ret = bfd_reloc_ok;
341 if (bfd_is_und_section (symbol->section)
342 && output_bfd == NULL)
343 ret = bfd_reloc_undefined;
344
345 if (bfd_is_com_section (symbol->section))
346 relocation = 0;
347 else
348 relocation = symbol->value;
349
350 relocation += symbol->section->output_section->vma;
351 relocation += symbol->section->output_offset;
352 relocation += reloc_entry->addend;
353
354 /* Save the information, and let LO16 do the actual relocation. */
355 n = bfd_malloc ((bfd_size_type) sizeof *n);
356 if (n == NULL)
357 return bfd_reloc_outofrange;
358 n->addr = (bfd_byte *) data + reloc_entry->address;
359 n->addend = relocation;
360 n->next = m32r_hi16_list;
361 m32r_hi16_list = n;
362
363 if (output_bfd != NULL)
364 reloc_entry->address += input_section->output_offset;
365
366 return ret;
367}
368
369/* Handle an M32R ELF HI16 reloc. */
370
371static void
372m32r_elf_relocate_hi16 (bfd *input_bfd,
373 int type,
374 Elf_Internal_Rela *relhi,
375 Elf_Internal_Rela *rello,
376 bfd_byte *contents,
377 bfd_vma addend)
378{
379 unsigned long insn;
380 bfd_vma addlo;
381
382 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
383
384 addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
385 if (type == R_M32R_HI16_SLO)
386 addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
387 else
388 addlo &= 0xffff;
389
390 addend += ((insn & 0xffff) << 16) + addlo;
391
392 /* Reaccount for sign extension of low part. */
393 if (type == R_M32R_HI16_SLO
394 && (addend & 0x8000) != 0)
395 addend += 0x10000;
396
397 bfd_put_32 (input_bfd,
398 (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
399 contents + relhi->r_offset);
400}
401
402/* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
403 inplace relocation; this function exists in order to do the
404 R_M32R_HI16_[SU]LO relocation described above. */
405
406static bfd_reloc_status_type
407m32r_elf_lo16_reloc (bfd *input_bfd,
408 arelent *reloc_entry,
409 asymbol *symbol,
410 void * data,
411 asection *input_section,
412 bfd *output_bfd,
413 char **error_message)
414{
415 /* This part is from bfd_elf_generic_reloc.
416 If we're relocating, and this an external symbol, we don't want
417 to change anything. */
418 if (output_bfd != NULL
419 && (symbol->flags & BSF_SECTION_SYM) == 0
420 && reloc_entry->addend == 0)
421 {
422 reloc_entry->address += input_section->output_offset;
423 return bfd_reloc_ok;
424 }
425
426 if (m32r_hi16_list != NULL)
427 {
428 struct m32r_hi16 *l;
429
430 l = m32r_hi16_list;
431 while (l != NULL)
432 {
433 unsigned long insn;
434 unsigned long val;
435 unsigned long vallo;
436 struct m32r_hi16 *next;
437
438 /* Do the HI16 relocation. Note that we actually don't need
439 to know anything about the LO16 itself, except where to
440 find the low 16 bits of the addend needed by the LO16. */
441 insn = bfd_get_32 (input_bfd, l->addr);
442 vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
443 & 0xffff) ^ 0x8000) - 0x8000;
444 val = ((insn & 0xffff) << 16) + vallo;
445 val += l->addend;
446
447 /* Reaccount for sign extension of low part. */
448 if ((val & 0x8000) != 0)
449 val += 0x10000;
450
451 insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
452 bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
453
454 next = l->next;
455 free (l);
456 l = next;
457 }
6edf0760 458
47b0e7ad
NC
459 m32r_hi16_list = NULL;
460 }
461
462 /* Now do the LO16 reloc in the usual way.
463 ??? It would be nice to call bfd_elf_generic_reloc here,
464 but we have partial_inplace set. bfd_elf_generic_reloc will
465 pass the handling back to bfd_install_relocation which will install
466 a section relative addend which is wrong. */
467 return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
468 input_section, output_bfd, error_message);
469}
470
471\f
472static reloc_howto_type m32r_elf_howto_table[] =
473{
474 /* This reloc does nothing. */
475 HOWTO (R_M32R_NONE, /* type */
6edf0760 476 0, /* rightshift */
6346d5ca
AM
477 3, /* size (0 = byte, 1 = short, 2 = long) */
478 0, /* bitsize */
6edf0760
NC
479 FALSE, /* pc_relative */
480 0, /* bitpos */
6346d5ca 481 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
482 bfd_elf_generic_reloc, /* special_function */
483 "R_M32R_NONE", /* name */
6edf0760 484 FALSE, /* partial_inplace */
47b0e7ad
NC
485 0, /* src_mask */
486 0, /* dst_mask */
6edf0760
NC
487 FALSE), /* pcrel_offset */
488
47b0e7ad
NC
489 /* A 16 bit absolute relocation. */
490 HOWTO (R_M32R_16, /* type */
6edf0760 491 0, /* rightshift */
47b0e7ad
NC
492 1, /* size (0 = byte, 1 = short, 2 = long) */
493 16, /* bitsize */
6edf0760
NC
494 FALSE, /* pc_relative */
495 0, /* bitpos */
496 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC
497 m32r_elf_generic_reloc,/* special_function */
498 "R_M32R_16", /* name */
499 TRUE, /* partial_inplace */
500 0xffff, /* src_mask */
501 0xffff, /* dst_mask */
6edf0760
NC
502 FALSE), /* pcrel_offset */
503
47b0e7ad
NC
504 /* A 32 bit absolute relocation. */
505 HOWTO (R_M32R_32, /* type */
6edf0760
NC
506 0, /* rightshift */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
508 32, /* bitsize */
509 FALSE, /* pc_relative */
510 0, /* bitpos */
511 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC
512 m32r_elf_generic_reloc,/* special_function */
513 "R_M32R_32", /* name */
514 TRUE, /* partial_inplace */
6edf0760
NC
515 0xffffffff, /* src_mask */
516 0xffffffff, /* dst_mask */
517 FALSE), /* pcrel_offset */
518
47b0e7ad
NC
519 /* A 24 bit address. */
520 HOWTO (R_M32R_24, /* type */
6edf0760
NC
521 0, /* rightshift */
522 2, /* size (0 = byte, 1 = short, 2 = long) */
097f809a 523 24, /* bitsize */
6edf0760
NC
524 FALSE, /* pc_relative */
525 0, /* bitpos */
47b0e7ad
NC
526 complain_overflow_unsigned, /* complain_on_overflow */
527 m32r_elf_generic_reloc,/* special_function */
528 "R_M32R_24", /* name */
529 TRUE, /* partial_inplace */
097f809a
NC
530 0xffffff, /* src_mask */
531 0xffffff, /* dst_mask */
6edf0760
NC
532 FALSE), /* pcrel_offset */
533
47b0e7ad
NC
534 /* An PC Relative 10-bit relocation, shifted by 2.
535 This reloc is complicated because relocations are relative to pc & -4.
536 i.e. branches in the right insn slot use the address of the left insn
537 slot for pc. */
538 /* ??? It's not clear whether this should have partial_inplace set or not.
539 Branch relaxing in the assembler can store the addend in the insn,
540 and if bfd_install_relocation gets called the addend may get added
541 again. */
542 HOWTO (R_M32R_10_PCREL, /* type */
543 2, /* rightshift */
544 1, /* size (0 = byte, 1 = short, 2 = long) */
545 10, /* bitsize */
546 TRUE, /* pc_relative */
547 0, /* bitpos */
548 complain_overflow_signed, /* complain_on_overflow */
549 m32r_elf_10_pcrel_reloc, /* special_function */
550 "R_M32R_10_PCREL", /* name */
551 FALSE, /* partial_inplace */
552 0xff, /* src_mask */
553 0xff, /* dst_mask */
6edf0760
NC
554 TRUE), /* pcrel_offset */
555
47b0e7ad
NC
556 /* A relative 18 bit relocation, right shifted by 2. */
557 HOWTO (R_M32R_18_PCREL, /* type */
558 2, /* rightshift */
6edf0760
NC
559 2, /* size (0 = byte, 1 = short, 2 = long) */
560 16, /* bitsize */
47b0e7ad 561 TRUE, /* pc_relative */
6edf0760 562 0, /* bitpos */
47b0e7ad 563 complain_overflow_signed, /* complain_on_overflow */
6edf0760 564 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 565 "R_M32R_18_PCREL", /* name */
6edf0760 566 FALSE, /* partial_inplace */
47b0e7ad
NC
567 0xffff, /* src_mask */
568 0xffff, /* dst_mask */
569 TRUE), /* pcrel_offset */
6edf0760 570
47b0e7ad
NC
571 /* A relative 26 bit relocation, right shifted by 2. */
572 /* ??? It's not clear whether this should have partial_inplace set or not.
573 Branch relaxing in the assembler can store the addend in the insn,
574 and if bfd_install_relocation gets called the addend may get added
575 again. */
576 HOWTO (R_M32R_26_PCREL, /* type */
577 2, /* rightshift */
6edf0760 578 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad
NC
579 26, /* bitsize */
580 TRUE, /* pc_relative */
6edf0760 581 0, /* bitpos */
47b0e7ad 582 complain_overflow_signed, /* complain_on_overflow */
6edf0760 583 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 584 "R_M32R_26_PCREL", /* name */
6edf0760 585 FALSE, /* partial_inplace */
47b0e7ad
NC
586 0xffffff, /* src_mask */
587 0xffffff, /* dst_mask */
588 TRUE), /* pcrel_offset */
6edf0760 589
47b0e7ad
NC
590 /* High 16 bits of address when lower 16 is or'd in. */
591 HOWTO (R_M32R_HI16_ULO, /* type */
592 16, /* rightshift */
6edf0760
NC
593 2, /* size (0 = byte, 1 = short, 2 = long) */
594 16, /* bitsize */
595 FALSE, /* pc_relative */
596 0, /* bitpos */
597 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
598 m32r_elf_hi16_reloc, /* special_function */
599 "R_M32R_HI16_ULO", /* name */
600 TRUE, /* partial_inplace */
6edf0760
NC
601 0x0000ffff, /* src_mask */
602 0x0000ffff, /* dst_mask */
603 FALSE), /* pcrel_offset */
604
47b0e7ad
NC
605 /* High 16 bits of address when lower 16 is added in. */
606 HOWTO (R_M32R_HI16_SLO, /* type */
6edf0760
NC
607 16, /* rightshift */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
609 16, /* bitsize */
610 FALSE, /* pc_relative */
611 0, /* bitpos */
612 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
613 m32r_elf_hi16_reloc, /* special_function */
614 "R_M32R_HI16_SLO", /* name */
615 TRUE, /* partial_inplace */
6edf0760
NC
616 0x0000ffff, /* src_mask */
617 0x0000ffff, /* dst_mask */
47b0e7ad 618 FALSE), /* pcrel_offset */
6edf0760 619
47b0e7ad
NC
620 /* Lower 16 bits of address. */
621 HOWTO (R_M32R_LO16, /* type */
622 0, /* rightshift */
6edf0760
NC
623 2, /* size (0 = byte, 1 = short, 2 = long) */
624 16, /* bitsize */
625 FALSE, /* pc_relative */
626 0, /* bitpos */
627 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
628 m32r_elf_lo16_reloc, /* special_function */
629 "R_M32R_LO16", /* name */
630 TRUE, /* partial_inplace */
6edf0760
NC
631 0x0000ffff, /* src_mask */
632 0x0000ffff, /* dst_mask */
47b0e7ad 633 FALSE), /* pcrel_offset */
6edf0760 634
47b0e7ad
NC
635 /* Small data area 16 bits offset. */
636 HOWTO (R_M32R_SDA16, /* type */
6edf0760
NC
637 0, /* rightshift */
638 2, /* size (0 = byte, 1 = short, 2 = long) */
639 16, /* bitsize */
640 FALSE, /* pc_relative */
641 0, /* bitpos */
47b0e7ad
NC
642 complain_overflow_signed, /* complain_on_overflow */
643 m32r_elf_sda16_reloc, /* special_function */
644 "R_M32R_SDA16", /* name */
645 TRUE, /* partial_inplace */ /* FIXME: correct? */
6edf0760
NC
646 0x0000ffff, /* src_mask */
647 0x0000ffff, /* dst_mask */
47b0e7ad 648 FALSE), /* pcrel_offset */
097f809a 649
47b0e7ad
NC
650 /* GNU extension to record C++ vtable hierarchy. */
651 HOWTO (R_M32R_GNU_VTINHERIT, /* type */
652 0, /* rightshift */
653 2, /* size (0 = byte, 1 = short, 2 = long) */
654 0, /* bitsize */
655 FALSE, /* pc_relative */
656 0, /* bitpos */
657 complain_overflow_dont, /* complain_on_overflow */
658 NULL, /* special_function */
659 "R_M32R_GNU_VTINHERIT", /* name */
660 FALSE, /* partial_inplace */
661 0, /* src_mask */
662 0, /* dst_mask */
663 FALSE), /* pcrel_offset */
664
665 /* GNU extension to record C++ vtable member usage. */
666 HOWTO (R_M32R_GNU_VTENTRY, /* type */
667 0, /* rightshift */
668 2, /* size (0 = byte, 1 = short, 2 = long) */
669 0, /* bitsize */
670 FALSE, /* pc_relative */
671 0, /* bitpos */
672 complain_overflow_dont, /* complain_on_overflow */
673 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
674 "R_M32R_GNU_VTENTRY", /* name */
675 FALSE, /* partial_inplace */
676 0, /* src_mask */
677 0, /* dst_mask */
678 FALSE), /* pcrel_offset */
679
680 EMPTY_HOWTO (13),
681 EMPTY_HOWTO (14),
682 EMPTY_HOWTO (15),
683 EMPTY_HOWTO (16),
684 EMPTY_HOWTO (17),
685 EMPTY_HOWTO (18),
686 EMPTY_HOWTO (19),
687 EMPTY_HOWTO (20),
688 EMPTY_HOWTO (21),
689 EMPTY_HOWTO (22),
690 EMPTY_HOWTO (23),
691 EMPTY_HOWTO (24),
692 EMPTY_HOWTO (25),
693 EMPTY_HOWTO (26),
694 EMPTY_HOWTO (27),
695 EMPTY_HOWTO (28),
696 EMPTY_HOWTO (29),
697 EMPTY_HOWTO (30),
698 EMPTY_HOWTO (31),
699 EMPTY_HOWTO (32),
700
701 /* A 16 bit absolute relocation. */
702 HOWTO (R_M32R_16_RELA, /* type */
703 0, /* rightshift */
704 1, /* size (0 = byte, 1 = short, 2 = long) */
097f809a
NC
705 16, /* bitsize */
706 FALSE, /* pc_relative */
707 0, /* bitpos */
47b0e7ad 708 complain_overflow_bitfield, /* complain_on_overflow */
097f809a 709 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 710 "R_M32R_16_RELA", /* name */
097f809a 711 FALSE, /* partial_inplace */
47b0e7ad
NC
712 0xffff, /* src_mask */
713 0xffff, /* dst_mask */
097f809a
NC
714 FALSE), /* pcrel_offset */
715
47b0e7ad
NC
716 /* A 32 bit absolute relocation. */
717 HOWTO (R_M32R_32_RELA, /* type */
718 0, /* rightshift */
097f809a 719 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 720 32, /* bitsize */
097f809a
NC
721 FALSE, /* pc_relative */
722 0, /* bitpos */
47b0e7ad
NC
723 complain_overflow_bitfield, /* complain_on_overflow */
724 bfd_elf_generic_reloc,/* special_function */
725 "R_M32R_32_RELA", /* name */
097f809a 726 FALSE, /* partial_inplace */
47b0e7ad
NC
727 0xffffffff, /* src_mask */
728 0xffffffff, /* dst_mask */
097f809a
NC
729 FALSE), /* pcrel_offset */
730
47b0e7ad
NC
731 /* A 24 bit address. */
732 HOWTO (R_M32R_24_RELA, /* type */
097f809a
NC
733 0, /* rightshift */
734 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 735 24, /* bitsize */
097f809a
NC
736 FALSE, /* pc_relative */
737 0, /* bitpos */
47b0e7ad
NC
738 complain_overflow_unsigned, /* complain_on_overflow */
739 bfd_elf_generic_reloc,/* special_function */
740 "R_M32R_24_RELA", /* name */
097f809a 741 FALSE, /* partial_inplace */
47b0e7ad
NC
742 0xffffff, /* src_mask */
743 0xffffff, /* dst_mask */
097f809a 744 FALSE), /* pcrel_offset */
252b5132 745
47b0e7ad
NC
746 HOWTO (R_M32R_10_PCREL_RELA, /* type */
747 2, /* rightshift */
748 1, /* size (0 = byte, 1 = short, 2 = long) */
749 10, /* bitsize */
750 TRUE, /* pc_relative */
751 0, /* bitpos */
752 complain_overflow_signed, /* complain_on_overflow */
753 m32r_elf_10_pcrel_reloc, /* special_function */
754 "R_M32R_10_PCREL_RELA",/* name */
755 FALSE, /* partial_inplace */
756 0xff, /* src_mask */
757 0xff, /* dst_mask */
758 TRUE), /* pcrel_offset */
252b5132 759
47b0e7ad
NC
760 /* A relative 18 bit relocation, right shifted by 2. */
761 HOWTO (R_M32R_18_PCREL_RELA, /* type */
762 2, /* rightshift */
763 2, /* size (0 = byte, 1 = short, 2 = long) */
764 16, /* bitsize */
765 TRUE, /* pc_relative */
766 0, /* bitpos */
767 complain_overflow_signed, /* complain_on_overflow */
768 bfd_elf_generic_reloc, /* special_function */
769 "R_M32R_18_PCREL_RELA",/* name */
770 FALSE, /* partial_inplace */
771 0xffff, /* src_mask */
772 0xffff, /* dst_mask */
773 TRUE), /* pcrel_offset */
252b5132 774
47b0e7ad
NC
775 /* A relative 26 bit relocation, right shifted by 2. */
776 HOWTO (R_M32R_26_PCREL_RELA, /* type */
777 2, /* rightshift */
778 2, /* size (0 = byte, 1 = short, 2 = long) */
779 26, /* bitsize */
780 TRUE, /* pc_relative */
781 0, /* bitpos */
782 complain_overflow_signed, /* complain_on_overflow */
783 bfd_elf_generic_reloc, /* special_function */
784 "R_M32R_26_PCREL_RELA",/* name */
785 FALSE, /* partial_inplace */
786 0xffffff, /* src_mask */
787 0xffffff, /* dst_mask */
788 TRUE), /* pcrel_offset */
4c72e23a 789
47b0e7ad
NC
790 /* High 16 bits of address when lower 16 is or'd in. */
791 HOWTO (R_M32R_HI16_ULO_RELA, /* type */
792 16, /* rightshift */
793 2, /* size (0 = byte, 1 = short, 2 = long) */
794 16, /* bitsize */
795 FALSE, /* pc_relative */
796 0, /* bitpos */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_M32R_HI16_ULO_RELA",/* name */
800 FALSE, /* partial_inplace */
801 0x0000ffff, /* src_mask */
802 0x0000ffff, /* dst_mask */
803 FALSE), /* pcrel_offset */
252b5132 804
47b0e7ad
NC
805 /* High 16 bits of address when lower 16 is added in. */
806 HOWTO (R_M32R_HI16_SLO_RELA, /* type */
807 16, /* rightshift */
808 2, /* size (0 = byte, 1 = short, 2 = long) */
809 16, /* bitsize */
810 FALSE, /* pc_relative */
811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
814 "R_M32R_HI16_SLO_RELA",/* name */
815 FALSE, /* partial_inplace */
816 0x0000ffff, /* src_mask */
817 0x0000ffff, /* dst_mask */
818 FALSE), /* pcrel_offset */
252b5132 819
47b0e7ad
NC
820 /* Lower 16 bits of address. */
821 HOWTO (R_M32R_LO16_RELA, /* type */
822 0, /* rightshift */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
824 16, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_dont, /* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_M32R_LO16_RELA", /* name */
830 FALSE, /* partial_inplace */
831 0x0000ffff, /* src_mask */
832 0x0000ffff, /* dst_mask */
833 FALSE), /* pcrel_offset */
252b5132 834
47b0e7ad
NC
835 /* Small data area 16 bits offset. */
836 HOWTO (R_M32R_SDA16_RELA, /* type */
837 0, /* rightshift */
838 2, /* size (0 = byte, 1 = short, 2 = long) */
839 16, /* bitsize */
840 FALSE, /* pc_relative */
841 0, /* bitpos */
842 complain_overflow_signed, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* special_function */
844 "R_M32R_SDA16_RELA", /* name */
845 TRUE, /* partial_inplace */ /* FIXME: correct? */
846 0x0000ffff, /* src_mask */
847 0x0000ffff, /* dst_mask */
848 FALSE), /* pcrel_offset */
252b5132 849
47b0e7ad
NC
850 /* GNU extension to record C++ vtable hierarchy. */
851 HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
852 0, /* rightshift */
853 2, /* size (0 = byte, 1 = short, 2 = long) */
854 0, /* bitsize */
855 FALSE, /* pc_relative */
856 0, /* bitpos */
857 complain_overflow_dont, /* complain_on_overflow */
858 NULL, /* special_function */
859 "R_M32R_RELA_GNU_VTINHERIT", /* name */
860 FALSE, /* partial_inplace */
861 0, /* src_mask */
862 0, /* dst_mask */
863 FALSE), /* pcrel_offset */
252b5132 864
47b0e7ad
NC
865 /* GNU extension to record C++ vtable member usage. */
866 HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
867 0, /* rightshift */
868 2, /* size (0 = byte, 1 = short, 2 = long) */
869 0, /* bitsize */
870 FALSE, /* pc_relative */
871 0, /* bitpos */
872 complain_overflow_dont, /* complain_on_overflow */
873 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
874 "R_M32R_RELA_GNU_VTENTRY", /* name */
875 FALSE, /* partial_inplace */
876 0, /* src_mask */
877 0, /* dst_mask */
878 FALSE), /* pcrel_offset */
252b5132 879
157e7bd1
NC
880 /* A 32 bit PC relative relocation. */
881 HOWTO (R_M32R_REL32, /* type */
882 0, /* rightshift */
883 2, /* size (0 = byte, 1 = short, 2 = long) */
884 32, /* bitsize */
885 TRUE, /* pc_relative */
886 0, /* bitpos */
887 complain_overflow_bitfield, /* complain_on_overflow */
888 bfd_elf_generic_reloc,/* special_function */
889 "R_M32R_REL32", /* name */
890 FALSE, /* partial_inplace */
891 0xffffffff, /* src_mask */
892 0xffffffff, /* dst_mask */
893 TRUE), /* pcrel_offset */
894
47b0e7ad
NC
895 EMPTY_HOWTO (46),
896 EMPTY_HOWTO (47),
252b5132 897
47b0e7ad
NC
898 /* Like R_M32R_24, but referring to the GOT table entry for
899 the symbol. */
900 HOWTO (R_M32R_GOT24, /* type */
901 0, /* rightshift */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
903 24, /* bitsize */
904 FALSE, /* pc_relative */
905 0, /* bitpos */
906 complain_overflow_unsigned, /* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_M32R_GOT24", /* name */
909 FALSE, /* partial_inplace */
910 0xffffff, /* src_mask */
911 0xffffff, /* dst_mask */
912 FALSE), /* pcrel_offset */
8b125cde 913
47b0e7ad
NC
914 /* Like R_M32R_PCREL, but referring to the procedure linkage table
915 entry for the symbol. */
916 HOWTO (R_M32R_26_PLTREL, /* type */
917 2, /* rightshift */
918 2, /* size (0 = byte, 1 = short, 2 = long) */
919 24, /* bitsize */
920 TRUE, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_signed, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_M32R_26_PLTREL", /* name */
925 FALSE, /* partial_inplace */
926 0xffffff, /* src_mask */
927 0xffffff, /* dst_mask */
928 TRUE), /* pcrel_offset */
8b125cde 929
47b0e7ad
NC
930 /* This is used only by the dynamic linker. The symbol should exist
931 both in the object being run and in some shared library. The
932 dynamic linker copies the data addressed by the symbol from the
933 shared library into the object, because the object being
934 run has to have the data at some particular address. */
935 HOWTO (R_M32R_COPY, /* type */
936 0, /* rightshift */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
938 32, /* bitsize */
939 FALSE, /* pc_relative */
940 0, /* bitpos */
941 complain_overflow_bitfield, /* complain_on_overflow */
942 bfd_elf_generic_reloc, /* special_function */
943 "R_M32R_COPY", /* name */
944 FALSE, /* partial_inplace */
945 0xffffffff, /* src_mask */
946 0xffffffff, /* dst_mask */
947 FALSE), /* pcrel_offset */
8b125cde 948
47b0e7ad
NC
949 /* Like R_M32R_24, but used when setting global offset table
950 entries. */
951 HOWTO (R_M32R_GLOB_DAT, /* type */
952 0, /* rightshift */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
954 32, /* bitsize */
955 FALSE, /* pc_relative */
956 0, /* bitpos */
957 complain_overflow_bitfield, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_M32R_GLOB_DAT", /* name */
960 FALSE, /* partial_inplace */
961 0xffffffff, /* src_mask */
962 0xffffffff, /* dst_mask */
963 FALSE), /* pcrel_offset */
8b125cde 964
47b0e7ad
NC
965 /* Marks a procedure linkage table entry for a symbol. */
966 HOWTO (R_M32R_JMP_SLOT, /* type */
967 0, /* rightshift */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
969 32, /* bitsize */
970 FALSE, /* pc_relative */
971 0, /* bitpos */
972 complain_overflow_bitfield, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_M32R_JMP_SLOT", /* name */
975 FALSE, /* partial_inplace */
976 0xffffffff, /* src_mask */
977 0xffffffff, /* dst_mask */
978 FALSE), /* pcrel_offset */
4c72e23a 979
47b0e7ad
NC
980 /* Used only by the dynamic linker. When the object is run, this
981 longword is set to the load address of the object, plus the
982 addend. */
983 HOWTO (R_M32R_RELATIVE, /* type */
984 0, /* rightshift */
985 2, /* size (0 = byte, 1 = short, 2 = long) */
986 32, /* bitsize */
987 FALSE, /* pc_relative */
988 0, /* bitpos */
989 complain_overflow_bitfield, /* complain_on_overflow */
990 bfd_elf_generic_reloc, /* special_function */
991 "R_M32R_RELATIVE", /* name */
992 FALSE, /* partial_inplace */
993 0xffffffff, /* src_mask */
994 0xffffffff, /* dst_mask */
995 FALSE), /* pcrel_offset */
4c72e23a 996
47b0e7ad
NC
997 HOWTO (R_M32R_GOTOFF, /* type */
998 0, /* rightshift */
999 2, /* size (0 = byte, 1 = short, 2 = long) */
1000 24, /* bitsize */
1001 FALSE, /* pc_relative */
1002 0, /* bitpos */
1003 complain_overflow_bitfield, /* complain_on_overflow */
1004 bfd_elf_generic_reloc, /* special_function */
1005 "R_M32R_GOTOFF", /* name */
1006 FALSE, /* partial_inplace */
1007 0xffffff, /* src_mask */
1008 0xffffff, /* dst_mask */
1009 FALSE), /* pcrel_offset */
4c72e23a 1010
47b0e7ad
NC
1011 /* An PC Relative 24-bit relocation used when setting PIC offset
1012 table register. */
1013 HOWTO (R_M32R_GOTPC24, /* type */
1014 0, /* rightshift */
1015 2, /* size (0 = byte, 1 = short, 2 = long) */
1016 24, /* bitsize */
1017 TRUE, /* pc_relative */
1018 0, /* bitpos */
1019 complain_overflow_unsigned, /* complain_on_overflow */
1020 bfd_elf_generic_reloc, /* special_function */
1021 "R_M32R_GOTPC24", /* name */
1022 FALSE, /* partial_inplace */
1023 0xffffff, /* src_mask */
1024 0xffffff, /* dst_mask */
1025 TRUE), /* pcrel_offset */
4c72e23a 1026
47b0e7ad
NC
1027 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1028 the symbol. */
1029 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1030 16, /* rightshift */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1032 16, /* bitsize */
1033 FALSE, /* pc_relative */
1034 0, /* bitpos */
1035 complain_overflow_dont, /* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* special_function */
1037 "R_M32R_GOT16_HI_ULO", /* name */
1038 FALSE, /* partial_inplace */
1039 0x0000ffff, /* src_mask */
1040 0x0000ffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
4c72e23a 1042
47b0e7ad
NC
1043 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1044 the symbol. */
1045 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1046 16, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 FALSE, /* pc_relative */
1050 0, /* bitpos */
1051 complain_overflow_dont, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_M32R_GOT16_HI_SLO", /* name */
1054 FALSE, /* partial_inplace */
1055 0x0000ffff, /* src_mask */
1056 0x0000ffff, /* dst_mask */
1057 FALSE), /* pcrel_offset */
8b125cde 1058
47b0e7ad
NC
1059 /* Like R_M32R_LO16, but referring to the GOT table entry for
1060 the symbol. */
1061 HOWTO (R_M32R_GOT16_LO, /* type */
1062 0, /* rightshift */
1063 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 16, /* bitsize */
1065 FALSE, /* pc_relative */
1066 0, /* bitpos */
1067 complain_overflow_dont, /* complain_on_overflow */
1068 bfd_elf_generic_reloc, /* special_function */
1069 "R_M32R_GOT16_LO", /* name */
1070 FALSE, /* partial_inplace */
1071 0x0000ffff, /* src_mask */
1072 0x0000ffff, /* dst_mask */
1073 FALSE), /* pcrel_offset */
4c72e23a 1074
47b0e7ad
NC
1075 /* An PC Relative relocation used when setting PIC offset table register.
1076 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1077 the symbol. */
1078 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1079 16, /* rightshift */
1080 2, /* size (0 = byte, 1 = short, 2 = long) */
1081 16, /* bitsize */
1082 FALSE, /* pc_relative */
1083 0, /* bitpos */
1084 complain_overflow_dont, /* complain_on_overflow */
1085 bfd_elf_generic_reloc, /* special_function */
1086 "R_M32R_GOTPC_HI_ULO", /* name */
1087 FALSE, /* partial_inplace */
1088 0x0000ffff, /* src_mask */
1089 0x0000ffff, /* dst_mask */
1090 TRUE), /* pcrel_offset */
4c72e23a 1091
47b0e7ad
NC
1092 /* An PC Relative relocation used when setting PIC offset table register.
1093 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1094 the symbol. */
1095 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1096 16, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 bfd_elf_generic_reloc, /* special_function */
1103 "R_M32R_GOTPC_HI_SLO", /* name */
1104 FALSE, /* partial_inplace */
1105 0x0000ffff, /* src_mask */
1106 0x0000ffff, /* dst_mask */
1107 TRUE), /* pcrel_offset */
4c72e23a 1108
47b0e7ad
NC
1109 /* An PC Relative relocation used when setting PIC offset table register.
1110 Like R_M32R_LO16, but referring to the GOT table entry for
1111 the symbol. */
1112 HOWTO (R_M32R_GOTPC_LO, /* type */
1113 0, /* rightshift */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1115 16, /* bitsize */
1116 FALSE, /* pc_relative */
1117 0, /* bitpos */
1118 complain_overflow_dont, /* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_M32R_GOTPC_LO", /* name */
1121 FALSE, /* partial_inplace */
1122 0x0000ffff, /* src_mask */
1123 0x0000ffff, /* dst_mask */
1124 TRUE), /* pcrel_offset */
252b5132 1125
47b0e7ad
NC
1126 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1127 16, /* rightshift */
1128 2, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 bfd_elf_generic_reloc, /* special_function */
1134 "R_M32R_GOTOFF_HI_ULO",/* name */
1135 FALSE, /* partial_inplace */
1136 0x0000ffff, /* src_mask */
1137 0x0000ffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
252b5132 1139
47b0e7ad
NC
1140 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1141 16, /* rightshift */
1142 2, /* size (0 = byte, 1 = short, 2 = long) */
1143 16, /* bitsize */
1144 FALSE, /* pc_relative */
1145 0, /* bitpos */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 bfd_elf_generic_reloc, /* special_function */
1148 "R_M32R_GOTOFF_HI_SLO",/* name */
1149 FALSE, /* partial_inplace */
1150 0x0000ffff, /* src_mask */
1151 0x0000ffff, /* dst_mask */
1152 FALSE), /* pcrel_offset */
252b5132 1153
47b0e7ad
NC
1154 HOWTO (R_M32R_GOTOFF_LO, /* type */
1155 0, /* rightshift */
1156 2, /* size (0 = byte, 1 = short, 2 = long) */
1157 16, /* bitsize */
1158 FALSE, /* pc_relative */
1159 0, /* bitpos */
1160 complain_overflow_dont, /* complain_on_overflow */
1161 bfd_elf_generic_reloc, /* special_function */
1162 "R_M32R_GOTOFF_LO", /* name */
1163 FALSE, /* partial_inplace */
1164 0x0000ffff, /* src_mask */
1165 0x0000ffff, /* dst_mask */
1166 FALSE), /* pcrel_offset */
1167};
252b5132 1168
252b5132
RH
1169/* Map BFD reloc types to M32R ELF reloc types. */
1170
1171struct m32r_reloc_map
1172{
1173 bfd_reloc_code_real_type bfd_reloc_val;
1174 unsigned char elf_reloc_val;
1175};
1176
d5b2f13b 1177#ifdef USE_M32R_OLD_RELOC
6edf0760 1178static const struct m32r_reloc_map m32r_reloc_map_old[] =
252b5132
RH
1179{
1180 { BFD_RELOC_NONE, R_M32R_NONE },
1181 { BFD_RELOC_16, R_M32R_16 },
1182 { BFD_RELOC_32, R_M32R_32 },
1183 { BFD_RELOC_M32R_24, R_M32R_24 },
1184 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1185 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1186 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1187 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1188 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1189 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1190 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1191 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1192 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1193};
d5b2f13b 1194#else
6edf0760
NC
1195static const struct m32r_reloc_map m32r_reloc_map[] =
1196{
1197 { BFD_RELOC_NONE, R_M32R_NONE },
1198 { BFD_RELOC_16, R_M32R_16_RELA },
1199 { BFD_RELOC_32, R_M32R_32_RELA },
1200 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1201 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1202 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1203 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1204 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1205 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1206 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1207 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1208 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1209 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
157e7bd1 1210 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
41978308 1211
6edf0760
NC
1212 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1213 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1214 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1215 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1216 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1217 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1218 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1219 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1220 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1221 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1222 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1223 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1224 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1225 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
097f809a
NC
1226 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1227 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1228 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
6edf0760 1229};
d5b2f13b 1230#endif
6edf0760 1231
252b5132 1232static reloc_howto_type *
47b0e7ad
NC
1233bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1234 bfd_reloc_code_real_type code)
252b5132
RH
1235{
1236 unsigned int i;
1237
6edf0760
NC
1238#ifdef USE_M32R_OLD_RELOC
1239 for (i = 0;
1240 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1241 i++)
47b0e7ad
NC
1242 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1243 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1244
6edf0760
NC
1245#else /* ! USE_M32R_OLD_RELOC */
1246
252b5132
RH
1247 for (i = 0;
1248 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1249 i++)
47b0e7ad
NC
1250 if (m32r_reloc_map[i].bfd_reloc_val == code)
1251 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
6edf0760 1252#endif
252b5132
RH
1253
1254 return NULL;
1255}
1256
157090f7
AM
1257static reloc_howto_type *
1258bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1259 const char *r_name)
1260{
1261 unsigned int i;
1262
1263 for (i = 0;
1264 i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1265 i++)
1266 if (m32r_elf_howto_table[i].name != NULL
1267 && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1268 return &m32r_elf_howto_table[i];
1269
1270 return NULL;
1271}
1272
252b5132
RH
1273/* Set the howto pointer for an M32R ELF reloc. */
1274
1275static void
47b0e7ad
NC
1276m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1277 arelent *cache_ptr,
1278 Elf_Internal_Rela *dst)
252b5132
RH
1279{
1280 unsigned int r_type;
1281
1282 r_type = ELF32_R_TYPE (dst->r_info);
5860e3f8
NC
1283 if (r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1284 {
695344c0 1285 /* xgettext:c-format */
64d29018 1286 _bfd_error_handler (_("%B: invalid M32R reloc number: %d"), abfd, r_type);
5860e3f8
NC
1287 r_type = 0;
1288 }
252b5132
RH
1289 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1290}
6edf0760
NC
1291
1292static void
47b0e7ad
NC
1293m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1294 arelent *cache_ptr,
1295 Elf_Internal_Rela *dst)
6edf0760
NC
1296{
1297 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1298 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1299 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1300 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1301}
1302
252b5132
RH
1303\f
1304/* Given a BFD section, try to locate the corresponding ELF section
1305 index. */
1306
47b0e7ad
NC
1307static bfd_boolean
1308_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1309 asection *sec,
1310 int *retval)
252b5132
RH
1311{
1312 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1313 {
1314 *retval = SHN_M32R_SCOMMON;
b34976b6 1315 return TRUE;
252b5132 1316 }
b34976b6 1317 return FALSE;
252b5132
RH
1318}
1319
1320/* M32R ELF uses two common sections. One is the usual one, and the other
1321 is for small objects. All the small objects are kept together, and then
1322 referenced via one register, which yields faster assembler code. It is
1323 up to the compiler to emit an instruction to load the register with
1324 _SDA_BASE. This is what we use for the small common section. This
1325 approach is copied from elf32-mips.c. */
1326static asection m32r_elf_scom_section;
1327static asymbol m32r_elf_scom_symbol;
1328static asymbol *m32r_elf_scom_symbol_ptr;
1329
1330/* Handle the special M32R section numbers that a symbol may use. */
1331
47b0e7ad
NC
1332static void
1333_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1334{
47b0e7ad 1335 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH
1336
1337 switch (elfsym->internal_elf_sym.st_shndx)
1338 {
1339 case SHN_M32R_SCOMMON:
1340 if (m32r_elf_scom_section.name == NULL)
1341 {
1342 /* Initialize the small common section. */
1343 m32r_elf_scom_section.name = ".scommon";
1344 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1345 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1346 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1347 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1348 m32r_elf_scom_symbol.name = ".scommon";
1349 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1350 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1351 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1352 }
1353 asym->section = &m32r_elf_scom_section;
1354 asym->value = elfsym->internal_elf_sym.st_size;
1355 break;
1356 }
1357}
1358
1359/* Hook called by the linker routine which adds symbols from an object
1360 file. We must handle the special M32R section numbers here.
1361 We also keep watching for whether we need to create the sdata special
1362 linker sections. */
1363
b34976b6 1364static bfd_boolean
47b0e7ad
NC
1365m32r_elf_add_symbol_hook (bfd *abfd,
1366 struct bfd_link_info *info,
1367 Elf_Internal_Sym *sym,
1368 const char **namep,
1369 flagword *flagsp ATTRIBUTE_UNUSED,
1370 asection **secp,
1371 bfd_vma *valp)
252b5132 1372{
0e1862bb 1373 if (! bfd_link_relocatable (info)
252b5132 1374 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1375 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1376 && is_elf_hash_table (info->hash))
252b5132
RH
1377 {
1378 /* This is simpler than using _bfd_elf_create_linker_section
1379 (our needs are simpler than ppc's needs). Also
1380 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1381 section already exists a new one is created that follows it which
1382 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1383 struct elf_link_hash_entry *h;
14a793b2 1384 struct bfd_link_hash_entry *bh;
252b5132
RH
1385 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1386
6edf0760 1387 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC
1388 if (s == NULL)
1389 {
1390 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1391 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1392
3496cb2a
L
1393 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1394 flags);
6edf0760
NC
1395 if (s == NULL)
1396 return FALSE;
a253d456
NC
1397 if (! bfd_set_section_alignment (abfd, s, 2))
1398 return FALSE;
6edf0760
NC
1399 }
1400
1401 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1402 FALSE, FALSE, FALSE);
1403
1404 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1405 && !(_bfd_generic_link_add_one_symbol (info,
1406 abfd,
1407 "_SDA_BASE_",
1408 BSF_GLOBAL,
1409 s,
1410 (bfd_vma) 32768,
47b0e7ad 1411 NULL,
6edf0760
NC
1412 FALSE,
1413 get_elf_backend_data (abfd)->collect,
1414 &bh)))
1415 return FALSE;
1416 h = (struct elf_link_hash_entry *) bh;
1417 h->type = STT_OBJECT;
1418 }
1419
1420 switch (sym->st_shndx)
1421 {
1422 case SHN_M32R_SCOMMON:
1423 *secp = bfd_make_section_old_way (abfd, ".scommon");
1424 (*secp)->flags |= SEC_IS_COMMON;
1425 *valp = sym->st_size;
1426 break;
1427 }
1428
1429 return TRUE;
1430}
1431
1432/* We have to figure out the SDA_BASE value, so that we can adjust the
1433 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1434 BFD. If we can't find it, we're stuck. We cache it in the ELF
1435 target data. We don't need to adjust the symbol value for an
1436 external symbol if we are producing relocatable output. */
1437
1438static bfd_reloc_status_type
47b0e7ad
NC
1439m32r_elf_final_sda_base (bfd *output_bfd,
1440 struct bfd_link_info *info,
1441 const char **error_message,
1442 bfd_vma *psb)
6edf0760
NC
1443{
1444 if (elf_gp (output_bfd) == 0)
1445 {
1446 struct bfd_link_hash_entry *h;
1447
1448 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1449 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC
1450 elf_gp (output_bfd) = (h->u.def.value
1451 + h->u.def.section->output_section->vma
1452 + h->u.def.section->output_offset);
1453 else
1454 {
1455 /* Only get the error once. */
1456 *psb = elf_gp (output_bfd) = 4;
1457 *error_message =
1458 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1459 return bfd_reloc_dangerous;
1460 }
1461 }
1462 *psb = elf_gp (output_bfd);
1463 return bfd_reloc_ok;
1464}
1465\f
1466/* Return size of a PLT entry. */
1467#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1468
1469/* The m32r linker needs to keep track of the number of relocs that it
1470 decides to copy in check_relocs for each symbol. This is so that
1471 it can discard PC relative relocs if it doesn't need them when
1472 linking with -Bsymbolic. We store the information in a field
1473 extending the regular ELF linker hash table. */
1474
1475/* This structure keeps track of the number of PC relative relocs we
1476 have copied for a given symbol. */
1477
1478struct elf_m32r_pcrel_relocs_copied
1479{
1480 /* Next section. */
1481 struct elf_m32r_pcrel_relocs_copied *next;
1482 /* A section in dynobj. */
1483 asection *section;
1484 /* Number of relocs copied in this section. */
1485 bfd_size_type count;
1486};
1487
1488/* The sh linker needs to keep track of the number of relocs that it
1489 decides to copy as dynamic relocs in check_relocs for each symbol.
1490 This is so that it can later discard them if they are found to be
1491 unnecessary. We store the information in a field extending the
1492 regular ELF linker hash table. */
1493
1494struct elf_m32r_dyn_relocs
1495{
1496 struct elf_m32r_dyn_relocs *next;
1497
1498 /* The input section of the reloc. */
1499 asection *sec;
1500
1501 /* Total number of relocs copied for the input section. */
1502 bfd_size_type count;
1503
1504 /* Number of pc-relative relocs copied for the input section. */
1505 bfd_size_type pc_count;
1506};
1507
1508
1509/* m32r ELF linker hash entry. */
1510
1511struct elf_m32r_link_hash_entry
1512{
1513 struct elf_link_hash_entry root;
1514
1515 /* Track dynamic relocs copied for this symbol. */
1516 struct elf_m32r_dyn_relocs *dyn_relocs;
6edf0760
NC
1517};
1518
1519/* m32r ELF linker hash table. */
1520
1521struct elf_m32r_link_hash_table
1522{
1523 struct elf_link_hash_table root;
1524
1525 /* Short-cuts to get to dynamic linker sections. */
6edf0760
NC
1526 asection *sdynbss;
1527 asection *srelbss;
1528
87d72d41
AM
1529 /* Small local sym cache. */
1530 struct sym_cache sym_cache;
6edf0760
NC
1531};
1532
1533/* Traverse an m32r ELF linker hash table. */
1534
1535#define m32r_elf_link_hash_traverse(table, func, info) \
1536 (elf_link_hash_traverse \
1537 (&(table)->root, \
47b0e7ad 1538 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC
1539 (info)))
1540
1541/* Get the m32r ELF linker hash table from a link_info structure. */
1542
6edf0760 1543#define m32r_elf_hash_table(p) \
4dfe6ac6
NC
1544 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1545 == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
6edf0760
NC
1546
1547/* Create an entry in an m32r ELF linker hash table. */
6edf0760
NC
1548
1549static struct bfd_hash_entry *
47b0e7ad
NC
1550m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1551 struct bfd_hash_table *table,
1552 const char *string)
6edf0760
NC
1553{
1554 struct elf_m32r_link_hash_entry *ret =
1555 (struct elf_m32r_link_hash_entry *) entry;
41978308 1556
6edf0760
NC
1557 /* Allocate the structure if it has not already been allocated by a
1558 subclass. */
47b0e7ad
NC
1559 if (ret == NULL)
1560 ret = bfd_hash_allocate (table,
1561 sizeof (struct elf_m32r_link_hash_entry));
1562 if (ret == NULL)
1563 return NULL;
41978308 1564
6edf0760
NC
1565 /* Call the allocation method of the superclass. */
1566 ret = ((struct elf_m32r_link_hash_entry *)
1567 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1568 table, string));
47b0e7ad 1569 if (ret != NULL)
6edf0760
NC
1570 {
1571 struct elf_m32r_link_hash_entry *eh;
41978308 1572
6edf0760
NC
1573 eh = (struct elf_m32r_link_hash_entry *) ret;
1574 eh->dyn_relocs = NULL;
6edf0760 1575 }
41978308 1576
6edf0760
NC
1577 return (struct bfd_hash_entry *) ret;
1578}
1579
1580/* Create an m32r ELF linker hash table. */
6edf0760
NC
1581
1582static struct bfd_link_hash_table *
47b0e7ad 1583m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760
NC
1584{
1585 struct elf_m32r_link_hash_table *ret;
1586 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
41978308 1587
7bf52ea2 1588 ret = bfd_zmalloc (amt);
47b0e7ad 1589 if (ret == NULL)
6edf0760 1590 return NULL;
41978308 1591
66eb6687
AM
1592 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1593 m32r_elf_link_hash_newfunc,
4dfe6ac6
NC
1594 sizeof (struct elf_m32r_link_hash_entry),
1595 M32R_ELF_DATA))
6edf0760
NC
1596 {
1597 free (ret);
1598 return NULL;
1599 }
41978308 1600
6edf0760
NC
1601 return &ret->root.root;
1602}
1603
6edf0760
NC
1604/* Create dynamic sections when linking against a dynamic object. */
1605
1606static bfd_boolean
47b0e7ad 1607m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760
NC
1608{
1609 struct elf_m32r_link_hash_table *htab;
1610 flagword flags, pltflags;
47b0e7ad 1611 asection *s;
6edf0760
NC
1612 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1613 int ptralign = 2; /* 32bit */
1614
1615 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
1616 if (htab == NULL)
1617 return FALSE;
6edf0760
NC
1618
1619 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1620 .rel[a].bss sections. */
6edf0760
NC
1621 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1622 | SEC_LINKER_CREATED);
1623
1624 pltflags = flags;
1625 pltflags |= SEC_CODE;
1626 if (bed->plt_not_loaded)
1627 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1628 if (bed->plt_readonly)
1629 pltflags |= SEC_READONLY;
1630
3d4d4302 1631 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
ce558b89 1632 htab->root.splt = s;
6edf0760 1633 if (s == NULL
6edf0760
NC
1634 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1635 return FALSE;
1636
1637 if (bed->want_plt_sym)
1638 {
1639 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1640 .plt section. */
41978308
AM
1641 struct bfd_link_hash_entry *bh = NULL;
1642 struct elf_link_hash_entry *h;
47b0e7ad 1643
6edf0760
NC
1644 if (! (_bfd_generic_link_add_one_symbol
1645 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
47b0e7ad 1646 (bfd_vma) 0, NULL, FALSE,
41978308 1647 get_elf_backend_data (abfd)->collect, &bh)))
6edf0760 1648 return FALSE;
41978308 1649 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1650 h->def_regular = 1;
6edf0760 1651 h->type = STT_OBJECT;
7325306f 1652 htab->root.hplt = h;
6edf0760 1653
0e1862bb 1654 if (bfd_link_pic (info)
c152c796 1655 && ! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
1656 return FALSE;
1657 }
1658
3d4d4302
AM
1659 s = bfd_make_section_anyway_with_flags (abfd,
1660 bed->default_use_rela_p
1661 ? ".rela.plt" : ".rel.plt",
1662 flags | SEC_READONLY);
ce558b89 1663 htab->root.srelplt = s;
6edf0760 1664 if (s == NULL
6edf0760
NC
1665 || ! bfd_set_section_alignment (abfd, s, ptralign))
1666 return FALSE;
1667
ce558b89
AM
1668 if (htab->root.sgot == NULL
1669 && !_bfd_elf_create_got_section (abfd, info))
6edf0760
NC
1670 return FALSE;
1671
6edf0760
NC
1672 if (bed->want_dynbss)
1673 {
1674 /* The .dynbss section is a place to put symbols which are defined
1675 by dynamic objects, are referenced by regular objects, and are
1676 not functions. We must allocate space for them in the process
1677 image and use a R_*_COPY reloc to tell the dynamic linker to
1678 initialize them at run time. The linker script puts the .dynbss
1679 section into the .bss section of the final image. */
3d4d4302
AM
1680 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1681 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1682 htab->sdynbss = s;
3496cb2a 1683 if (s == NULL)
6edf0760
NC
1684 return FALSE;
1685 /* The .rel[a].bss section holds copy relocs. This section is not
1686 normally needed. We need to create it here, though, so that the
1687 linker will map it to an output section. We can't just create it
1688 only if we need it, because we will not know whether we need it
1689 until we have seen all the input files, and the first time the
1690 main linker code calls BFD after examining all the input files
1691 (size_dynamic_sections) the input sections have already been
1692 mapped to the output sections. If the section turns out not to
1693 be needed, we can discard it later. We will never need this
1694 section when generating a shared object, since they do not use
1695 copy relocs. */
0e1862bb 1696 if (! bfd_link_pic (info))
6edf0760 1697 {
3d4d4302
AM
1698 s = bfd_make_section_anyway_with_flags (abfd,
1699 (bed->default_use_rela_p
1700 ? ".rela.bss" : ".rel.bss"),
1701 flags | SEC_READONLY);
6edf0760
NC
1702 htab->srelbss = s;
1703 if (s == NULL
6edf0760
NC
1704 || ! bfd_set_section_alignment (abfd, s, ptralign))
1705 return FALSE;
1706 }
1707 }
1708
1709 return TRUE;
1710}
1711
1712/* Copy the extra info we tack onto an elf_link_hash_entry. */
41978308 1713
6edf0760 1714static void
fcfa13d2 1715m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
6edf0760
NC
1716 struct elf_link_hash_entry *dir,
1717 struct elf_link_hash_entry *ind)
1718{
47b0e7ad
NC
1719 struct elf_m32r_link_hash_entry * edir;
1720 struct elf_m32r_link_hash_entry * eind;
41978308 1721
6edf0760
NC
1722 edir = (struct elf_m32r_link_hash_entry *) dir;
1723 eind = (struct elf_m32r_link_hash_entry *) ind;
41978308 1724
6edf0760
NC
1725 if (eind->dyn_relocs != NULL)
1726 {
1727 if (edir->dyn_relocs != NULL)
1728 {
1729 struct elf_m32r_dyn_relocs **pp;
1730 struct elf_m32r_dyn_relocs *p;
41978308 1731
fcfa13d2 1732 /* Add reloc counts against the indirect sym to the direct sym
6edf0760 1733 list. Merge any entries against the same section. */
47b0e7ad 1734 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
1735 {
1736 struct elf_m32r_dyn_relocs *q;
41978308 1737
6edf0760
NC
1738 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1739 if (q->sec == p->sec)
1740 {
1741 q->pc_count += p->pc_count;
1742 q->count += p->count;
1743 *pp = p->next;
1744 break;
1745 }
1746 if (q == NULL)
1747 pp = &p->next;
1748 }
1749 *pp = edir->dyn_relocs;
1750 }
41978308 1751
6edf0760
NC
1752 edir->dyn_relocs = eind->dyn_relocs;
1753 eind->dyn_relocs = NULL;
1754 }
41978308 1755
fcfa13d2 1756 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
6edf0760
NC
1757}
1758
1759\f
63c1f59d
AM
1760/* Find dynamic relocs for H that apply to read-only sections. */
1761
1762static asection *
1763readonly_dynrelocs (struct elf_link_hash_entry *h)
1764{
1765 struct elf_m32r_dyn_relocs *p;
1766 struct elf_m32r_link_hash_entry *eh = (struct elf_m32r_link_hash_entry *) h;
1767
1768 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1769 {
1770 asection *s = p->sec->output_section;
1771
1772 if (s != NULL && (s->flags & SEC_READONLY) != 0)
1773 return p->sec;
1774 }
1775 return NULL;
1776}
1777
6edf0760
NC
1778/* Adjust a symbol defined by a dynamic object and referenced by a
1779 regular object. The current definition is in some section of the
1780 dynamic object, but we're not including those sections. We have to
1781 change the definition to something the rest of the link can
1782 understand. */
41978308 1783
6edf0760 1784static bfd_boolean
47b0e7ad
NC
1785m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1786 struct elf_link_hash_entry *h)
6edf0760
NC
1787{
1788 struct elf_m32r_link_hash_table *htab;
1789 struct elf_m32r_link_hash_entry *eh;
1790 struct elf_m32r_dyn_relocs *p;
1791 bfd *dynobj;
1792 asection *s;
6edf0760
NC
1793
1794#ifdef DEBUG_PIC
47b0e7ad 1795 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1796#endif
41978308 1797
6edf0760 1798 dynobj = elf_hash_table (info)->dynobj;
41978308 1799
6edf0760
NC
1800 /* Make sure we know what is going on here. */
1801 BFD_ASSERT (dynobj != NULL
f5385ebf 1802 && (h->needs_plt
60d67dc8 1803 || h->is_weakalias
f5385ebf
AM
1804 || (h->def_dynamic
1805 && h->ref_regular
1806 && !h->def_regular)));
6edf0760 1807
6edf0760
NC
1808 /* If this is a function, put it in the procedure linkage table. We
1809 will fill in the contents of the procedure linkage table later,
1810 when we know the address of the .got section. */
1811 if (h->type == STT_FUNC
f5385ebf 1812 || h->needs_plt)
6edf0760 1813 {
0e1862bb 1814 if (! bfd_link_pic (info)
f5385ebf
AM
1815 && !h->def_dynamic
1816 && !h->ref_dynamic
6edf0760
NC
1817 && h->root.type != bfd_link_hash_undefweak
1818 && h->root.type != bfd_link_hash_undefined)
1819 {
1820 /* This case can occur if we saw a PLT reloc in an input
1821 file, but the symbol was never referred to by a dynamic
1822 object. In such a case, we don't actually need to build
1823 a procedure linkage table, and we can just do a PCREL
1824 reloc instead. */
1825 h->plt.offset = (bfd_vma) -1;
f5385ebf 1826 h->needs_plt = 0;
6edf0760
NC
1827 }
1828
1829 return TRUE;
1830 }
1831 else
1832 h->plt.offset = (bfd_vma) -1;
41978308 1833
6edf0760
NC
1834 /* If this is a weak symbol, and there is a real definition, the
1835 processor independent code will have arranged for us to see the
1836 real definition first, and we can just use the same value. */
60d67dc8 1837 if (h->is_weakalias)
6edf0760 1838 {
60d67dc8
AM
1839 struct elf_link_hash_entry *def = weakdef (h);
1840 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1841 h->root.u.def.section = def->root.u.def.section;
1842 h->root.u.def.value = def->root.u.def.value;
6edf0760
NC
1843 return TRUE;
1844 }
41978308 1845
6edf0760
NC
1846 /* This is a reference to a symbol defined by a dynamic object which
1847 is not a function. */
41978308 1848
6edf0760
NC
1849 /* If we are creating a shared library, we must presume that the
1850 only references to the symbol are via the global offset table.
1851 For such cases we need not do anything here; the relocations will
1852 be handled correctly by relocate_section. */
0e1862bb 1853 if (bfd_link_pic (info))
6edf0760 1854 return TRUE;
41978308 1855
6edf0760
NC
1856 /* If there are no references to this symbol that do not use the
1857 GOT, we don't need to generate a copy reloc. */
f5385ebf 1858 if (!h->non_got_ref)
6edf0760
NC
1859 return TRUE;
1860
1861 /* If -z nocopyreloc was given, we won't generate them either. */
1862 if (info->nocopyreloc)
1863 {
f5385ebf 1864 h->non_got_ref = 0;
6edf0760
NC
1865 return TRUE;
1866 }
1867
1868 eh = (struct elf_m32r_link_hash_entry *) h;
1869 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1870 {
1871 s = p->sec->output_section;
1872 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1873 break;
1874 }
1875
1876 /* If we didn't find any dynamic relocs in sections which needs the
1877 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1878 the copy reloc. */
1879 if (p == NULL)
1880 {
f5385ebf 1881 h->non_got_ref = 0;
6edf0760
NC
1882 return TRUE;
1883 }
1884
1885 /* We must allocate the symbol in our .dynbss section, which will
1886 become part of the .bss section of the executable. There will be
1887 an entry for this symbol in the .dynsym section. The dynamic
1888 object will contain position independent code, so all references
1889 from the dynamic object to this symbol will go through the global
1890 offset table. The dynamic linker will use the .dynsym entry to
1891 determine the address it must put in the global offset table, so
1892 both the dynamic object and the regular object will refer to the
1893 same memory location for the variable. */
41978308 1894
6edf0760 1895 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
1896 if (htab == NULL)
1897 return FALSE;
1898
6edf0760
NC
1899 s = htab->sdynbss;
1900 BFD_ASSERT (s != NULL);
41978308 1901
6edf0760
NC
1902 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1903 to copy the initial value out of the dynamic object and into the
1904 runtime process image. We need to remember the offset into the
1905 .rela.bss section we are going to use. */
1d7e9d18 1906 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
6edf0760
NC
1907 {
1908 asection *srel;
41978308 1909
6edf0760
NC
1910 srel = htab->srelbss;
1911 BFD_ASSERT (srel != NULL);
eea6121a 1912 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1913 h->needs_copy = 1;
6edf0760 1914 }
41978308 1915
6cabe1ea 1916 return _bfd_elf_adjust_dynamic_copy (info, h, s);
6edf0760
NC
1917}
1918
6edf0760
NC
1919/* Allocate space in .plt, .got and associated reloc sections for
1920 dynamic relocs. */
41978308 1921
6edf0760 1922static bfd_boolean
47b0e7ad 1923allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC
1924{
1925 struct bfd_link_info *info;
1926 struct elf_m32r_link_hash_table *htab;
1927 struct elf_m32r_link_hash_entry *eh;
1928 struct elf_m32r_dyn_relocs *p;
41978308 1929
6edf0760
NC
1930 if (h->root.type == bfd_link_hash_indirect)
1931 return TRUE;
41978308 1932
6edf0760
NC
1933 info = (struct bfd_link_info *) inf;
1934 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
1935 if (htab == NULL)
1936 return FALSE;
41978308 1937
6edf0760 1938 eh = (struct elf_m32r_link_hash_entry *) h;
41978308 1939
6edf0760
NC
1940 if (htab->root.dynamic_sections_created
1941 && h->plt.refcount > 0)
1942 {
1943 /* Make sure this symbol is output as a dynamic symbol.
1944 Undefined weak syms won't yet be marked as dynamic. */
1945 if (h->dynindx == -1
f5385ebf 1946 && !h->forced_local)
6edf0760 1947 {
c152c796 1948 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
1949 return FALSE;
1950 }
41978308 1951
0e1862bb 1952 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
6edf0760 1953 {
ce558b89 1954 asection *s = htab->root.splt;
41978308 1955
6edf0760
NC
1956 /* If this is the first .plt entry, make room for the special
1957 first entry. */
eea6121a
AM
1958 if (s->size == 0)
1959 s->size += PLT_ENTRY_SIZE;
41978308 1960
eea6121a 1961 h->plt.offset = s->size;
41978308 1962
6edf0760
NC
1963 /* If this symbol is not defined in a regular file, and we are
1964 not generating a shared library, then set the symbol to this
1965 location in the .plt. This is required to make function
1966 pointers compare as equal between the normal executable and
1967 the shared library. */
0e1862bb 1968 if (! bfd_link_pic (info)
f5385ebf 1969 && !h->def_regular)
6edf0760
NC
1970 {
1971 h->root.u.def.section = s;
1972 h->root.u.def.value = h->plt.offset;
1973 }
41978308 1974
6edf0760 1975 /* Make room for this entry. */
eea6121a 1976 s->size += PLT_ENTRY_SIZE;
41978308 1977
6edf0760
NC
1978 /* We also need to make an entry in the .got.plt section, which
1979 will be placed in the .got section by the linker script. */
ce558b89 1980 htab->root.sgotplt->size += 4;
41978308 1981
6edf0760 1982 /* We also need to make an entry in the .rel.plt section. */
ce558b89 1983 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
6edf0760
NC
1984 }
1985 else
1986 {
1987 h->plt.offset = (bfd_vma) -1;
f5385ebf 1988 h->needs_plt = 0;
6edf0760
NC
1989 }
1990 }
1991 else
1992 {
1993 h->plt.offset = (bfd_vma) -1;
f5385ebf 1994 h->needs_plt = 0;
6edf0760 1995 }
41978308 1996
6edf0760
NC
1997 if (h->got.refcount > 0)
1998 {
1999 asection *s;
2000 bfd_boolean dyn;
41978308 2001
6edf0760
NC
2002 /* Make sure this symbol is output as a dynamic symbol.
2003 Undefined weak syms won't yet be marked as dynamic. */
2004 if (h->dynindx == -1
f5385ebf 2005 && !h->forced_local)
6edf0760 2006 {
c152c796 2007 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2008 return FALSE;
2009 }
41978308 2010
ce558b89 2011 s = htab->root.sgot;
6edf0760 2012
eea6121a
AM
2013 h->got.offset = s->size;
2014 s->size += 4;
6edf0760 2015 dyn = htab->root.dynamic_sections_created;
0e1862bb 2016 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
ce558b89 2017 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2018 }
2019 else
2020 h->got.offset = (bfd_vma) -1;
41978308 2021
6edf0760
NC
2022 if (eh->dyn_relocs == NULL)
2023 return TRUE;
41978308 2024
6edf0760
NC
2025 /* In the shared -Bsymbolic case, discard space allocated for
2026 dynamic pc-relative relocs against symbols which turn out to be
2027 defined in regular objects. For the normal shared case, discard
2028 space for pc-relative relocs that have become local due to symbol
2029 visibility changes. */
2030
0e1862bb 2031 if (bfd_link_pic (info))
6edf0760 2032 {
f5385ebf
AM
2033 if (h->def_regular
2034 && (h->forced_local
6edf0760
NC
2035 || info->symbolic))
2036 {
2037 struct elf_m32r_dyn_relocs **pp;
47b0e7ad
NC
2038
2039 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
2040 {
2041 p->count -= p->pc_count;
2042 p->pc_count = 0;
2043 if (p->count == 0)
2044 *pp = p->next;
2045 else
2046 pp = &p->next;
2047 }
2048 }
22d606e9
AM
2049
2050 /* Also discard relocs on undefined weak syms with non-default
2051 visibility. */
2052 if (eh->dyn_relocs != NULL
2053 && h->root.type == bfd_link_hash_undefweak)
2054 {
2055 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2056 eh->dyn_relocs = NULL;
2057
2058 /* Make sure undefined weak symbols are output as a dynamic
2059 symbol in PIEs. */
2060 else if (h->dynindx == -1
2061 && !h->forced_local)
2062 {
2063 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2064 return FALSE;
2065 }
2066 }
6edf0760
NC
2067 }
2068 else
2069 {
2070 /* For the non-shared case, discard space for relocs against
2071 symbols which turn out to need copy relocs or are not
2072 dynamic. */
41978308 2073
f5385ebf
AM
2074 if (!h->non_got_ref
2075 && ((h->def_dynamic
2076 && !h->def_regular)
6edf0760
NC
2077 || (htab->root.dynamic_sections_created
2078 && (h->root.type == bfd_link_hash_undefweak
2079 || h->root.type == bfd_link_hash_undefined))))
2080 {
2081 /* Make sure this symbol is output as a dynamic symbol.
2082 Undefined weak syms won't yet be marked as dynamic. */
2083 if (h->dynindx == -1
f5385ebf 2084 && !h->forced_local)
6edf0760 2085 {
c152c796 2086 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2087 return FALSE;
2088 }
41978308 2089
6edf0760
NC
2090 /* If that succeeded, we know we'll be keeping all the
2091 relocs. */
2092 if (h->dynindx != -1)
2093 goto keep;
2094 }
41978308 2095
6edf0760 2096 eh->dyn_relocs = NULL;
41978308 2097
6edf0760
NC
2098 keep: ;
2099 }
41978308 2100
6edf0760
NC
2101 /* Finally, allocate space. */
2102 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2103 {
2104 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2105 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 2106 }
41978308 2107
6edf0760
NC
2108 return TRUE;
2109}
47b0e7ad 2110
63c1f59d
AM
2111/* Set DF_TEXTREL if we find any dynamic relocs that apply to
2112 read-only sections. */
41978308 2113
6edf0760 2114static bfd_boolean
63c1f59d 2115maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p)
6edf0760 2116{
63c1f59d 2117 asection *sec;
6edf0760 2118
63c1f59d
AM
2119 if (h->root.type == bfd_link_hash_indirect)
2120 return TRUE;
252b5132 2121
63c1f59d
AM
2122 sec = readonly_dynrelocs (h);
2123 if (sec != NULL)
2124 {
2125 struct bfd_link_info *info = (struct bfd_link_info *) info_p;
252b5132 2126
63c1f59d
AM
2127 info->flags |= DF_TEXTREL;
2128 info->callbacks->minfo
2129 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2130 sec->owner, h->root.root.string, sec);
252b5132 2131
63c1f59d
AM
2132 /* Not an error, just cut short the traversal. */
2133 return FALSE;
252b5132 2134 }
6edf0760
NC
2135 return TRUE;
2136}
252b5132 2137
6edf0760 2138/* Set the sizes of the dynamic sections. */
41978308 2139
6edf0760 2140static bfd_boolean
47b0e7ad
NC
2141m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2142 struct bfd_link_info *info)
6edf0760
NC
2143{
2144 struct elf_m32r_link_hash_table *htab;
2145 bfd *dynobj;
2146 asection *s;
2147 bfd_boolean relocs;
2148 bfd *ibfd;
2149
2150#ifdef DEBUG_PIC
47b0e7ad 2151 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC
2152#endif
2153
2154 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
2155 if (htab == NULL)
2156 return FALSE;
2157
6edf0760
NC
2158 dynobj = htab->root.dynobj;
2159 BFD_ASSERT (dynobj != NULL);
2160
2161 if (htab->root.dynamic_sections_created)
252b5132 2162 {
6edf0760 2163 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2164 if (bfd_link_executable (info) && !info->nointerp)
6edf0760 2165 {
3d4d4302 2166 s = bfd_get_linker_section (dynobj, ".interp");
6edf0760 2167 BFD_ASSERT (s != NULL);
eea6121a 2168 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC
2169 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2170 }
252b5132
RH
2171 }
2172
6edf0760
NC
2173 /* Set up .got offsets for local syms, and space for local dynamic
2174 relocs. */
c72f2fb2 2175 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
6edf0760
NC
2176 {
2177 bfd_signed_vma *local_got;
2178 bfd_signed_vma *end_local_got;
2179 bfd_size_type locsymcount;
2180 Elf_Internal_Shdr *symtab_hdr;
2181 asection *srel;
252b5132 2182
6edf0760
NC
2183 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2184 continue;
252b5132 2185
6edf0760
NC
2186 for (s = ibfd->sections; s != NULL; s = s->next)
2187 {
2188 struct elf_m32r_dyn_relocs *p;
2189
2190 for (p = ((struct elf_m32r_dyn_relocs *)
2191 elf_section_data (s)->local_dynrel);
2192 p != NULL;
2193 p = p->next)
2194 {
2195 if (! bfd_is_abs_section (p->sec)
2196 && bfd_is_abs_section (p->sec->output_section))
2197 {
2198 /* Input section has been discarded, either because
2199 it is a copy of a linkonce section or due to
2200 linker script /DISCARD/, so we'll be discarding
2201 the relocs too. */
2202 }
2203 else if (p->count != 0)
2204 {
2205 srel = elf_section_data (p->sec)->sreloc;
eea6121a 2206 srel->size += p->count * sizeof (Elf32_External_Rela);
6edf0760
NC
2207 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2208 info->flags |= DF_TEXTREL;
2209 }
2210 }
2211 }
2212
2213 local_got = elf_local_got_refcounts (ibfd);
2214 if (!local_got)
2215 continue;
2216
2217 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2218 locsymcount = symtab_hdr->sh_info;
2219 end_local_got = local_got + locsymcount;
ce558b89
AM
2220 s = htab->root.sgot;
2221 srel = htab->root.srelgot;
6edf0760
NC
2222 for (; local_got < end_local_got; ++local_got)
2223 {
2224 if (*local_got > 0)
2225 {
eea6121a
AM
2226 *local_got = s->size;
2227 s->size += 4;
0e1862bb 2228 if (bfd_link_pic (info))
eea6121a 2229 srel->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2230 }
2231 else
2232 *local_got = (bfd_vma) -1;
2233 }
2234 }
2235
2236 /* Allocate global sym .plt and .got entries, and space for global
2237 sym dynamic relocs. */
47b0e7ad 2238 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC
2239
2240 /* We now have determined the sizes of the various dynamic sections.
2241 Allocate memory for them. */
2242 relocs = FALSE;
2243 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2244 {
6edf0760
NC
2245 if ((s->flags & SEC_LINKER_CREATED) == 0)
2246 continue;
252b5132 2247
ce558b89
AM
2248 if (s == htab->root.splt
2249 || s == htab->root.sgot
2250 || s == htab->root.sgotplt
c456f082 2251 || s == htab->sdynbss)
6edf0760
NC
2252 {
2253 /* Strip this section if we don't need it; see the
2254 comment below. */
2255 }
0112cd26 2256 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
6edf0760 2257 {
ce558b89 2258 if (s->size != 0 && s != htab->root.srelplt)
6edf0760
NC
2259 relocs = TRUE;
2260
2261 /* We use the reloc_count field as a counter if we need
2262 to copy relocs into the output file. */
2263 s->reloc_count = 0;
2264 }
252b5132 2265 else
47b0e7ad
NC
2266 /* It's not one of our sections, so don't allocate space. */
2267 continue;
6edf0760 2268
eea6121a 2269 if (s->size == 0)
6edf0760
NC
2270 {
2271 /* If we don't need this section, strip it from the
2272 output file. This is mostly to handle .rela.bss and
2273 .rela.plt. We must create both sections in
2274 create_dynamic_sections, because they must be created
2275 before the linker maps input sections to output
2276 sections. The linker does that before
2277 adjust_dynamic_symbol is called, and it is that
2278 function which decides whether anything needs to go
2279 into these sections. */
8423293d 2280 s->flags |= SEC_EXCLUDE;
6edf0760
NC
2281 continue;
2282 }
2283
c456f082
AM
2284 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2285 continue;
2286
6edf0760
NC
2287 /* Allocate memory for the section contents. We use bfd_zalloc
2288 here in case unused entries are not reclaimed before the
2289 section's contents are written out. This should not happen,
2290 but this way if it does, we get a R_M32R_NONE reloc instead
2291 of garbage. */
47b0e7ad 2292 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760
NC
2293 if (s->contents == NULL)
2294 return FALSE;
2295 }
2296
2297 if (htab->root.dynamic_sections_created)
2298 {
2299 /* Add some entries to the .dynamic section. We fill in the
2300 values later, in m32r_elf_finish_dynamic_sections, but we
2301 must add the entries now so that we get the correct size for
2302 the .dynamic section. The DT_DEBUG entry is filled in by the
2303 dynamic linker and used by the debugger. */
2304#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2305 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6edf0760 2306
0e1862bb 2307 if (bfd_link_executable (info))
252b5132 2308 {
6edf0760
NC
2309 if (! add_dynamic_entry (DT_DEBUG, 0))
2310 return FALSE;
252b5132 2311 }
6edf0760 2312
ce558b89 2313 if (htab->root.splt->size != 0)
6edf0760
NC
2314 {
2315 if (! add_dynamic_entry (DT_PLTGOT, 0)
2316 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2317 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2318 || ! add_dynamic_entry (DT_JMPREL, 0))
2319 return FALSE;
2320 }
2321
2322 if (relocs)
2323 {
2324 if (! add_dynamic_entry (DT_RELA, 0)
2325 || ! add_dynamic_entry (DT_RELASZ, 0)
2326 || ! add_dynamic_entry (DT_RELAENT,
2327 sizeof (Elf32_External_Rela)))
2328 return FALSE;
2329
2330 /* If any dynamic relocs apply to a read-only section,
2331 then we need a DT_TEXTREL entry. */
2332 if ((info->flags & DF_TEXTREL) == 0)
63c1f59d 2333 elf_link_hash_traverse (&htab->root, maybe_set_textrel, info);
6edf0760
NC
2334
2335 if ((info->flags & DF_TEXTREL) != 0)
2336 {
2337 if (! add_dynamic_entry (DT_TEXTREL, 0))
2338 return FALSE;
2339 }
2340 }
252b5132 2341 }
6edf0760
NC
2342#undef add_dynamic_entry
2343
2344 return TRUE;
252b5132 2345}
47b0e7ad 2346
252b5132
RH
2347/* Relocate an M32R/D ELF section.
2348 There is some attempt to make this function usable for many architectures,
f0fe0e16 2349 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH
2350
2351 The RELOCATE_SECTION function is called by the new ELF backend linker
2352 to handle the relocations for a section.
2353
2354 The relocs are always passed as Rela structures; if the section
2355 actually uses Rel structures, the r_addend field will always be
2356 zero.
2357
2358 This function is responsible for adjust the section contents as
2359 necessary, and (if using Rela relocs and generating a
1049f94e 2360 relocatable output file) adjusting the reloc addend as
252b5132
RH
2361 necessary.
2362
2363 This function does not have to worry about setting the reloc
2364 address or the reloc symbol index.
2365
2366 LOCAL_SYMS is a pointer to the swapped in local symbols.
2367
2368 LOCAL_SECTIONS is an array giving the section in the input file
2369 corresponding to the st_shndx field of each local symbol.
2370
2371 The global hash table entry for the global symbols can be found
2372 via elf_sym_hashes (input_bfd).
2373
1049f94e 2374 When generating relocatable output, this function must handle
252b5132
RH
2375 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2376 going to be the section symbol corresponding to the output
2377 section, which means that the addend must be adjusted
2378 accordingly. */
2379
b34976b6 2380static bfd_boolean
47b0e7ad
NC
2381m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2382 struct bfd_link_info *info,
2383 bfd *input_bfd,
2384 asection *input_section,
2385 bfd_byte *contents,
2386 Elf_Internal_Rela *relocs,
2387 Elf_Internal_Sym *local_syms,
2388 asection **local_sections)
252b5132
RH
2389{
2390 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2391 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2392 Elf_Internal_Rela *rel, *relend;
2393 /* Assume success. */
b34976b6 2394 bfd_boolean ret = TRUE;
6edf0760 2395 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
6edf0760
NC
2396 bfd_vma *local_got_offsets;
2397 asection *sgot, *splt, *sreloc;
07515404 2398 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760 2399
4dfe6ac6
NC
2400 if (htab == NULL)
2401 return FALSE;
2402
6edf0760 2403 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2404
ce558b89
AM
2405 sgot = htab->root.sgot;
2406 splt = htab->root.splt;
6edf0760 2407 sreloc = NULL;
b491616a 2408
252b5132
RH
2409 rel = relocs;
2410 relend = relocs + input_section->reloc_count;
2411 for (; rel < relend; rel++)
2412 {
2413 int r_type;
2414 reloc_howto_type *howto;
2415 unsigned long r_symndx;
6edf0760 2416 struct elf_link_hash_entry *h;
252b5132 2417 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
6edf0760
NC
2418 ensure it's zero (we use REL relocs, not RELA). Therefore this
2419 should be assigning zero to `addend', but for clarity we use
2420 `r_addend'. */
252b5132
RH
2421 bfd_vma addend = rel->r_addend;
2422 bfd_vma offset = rel->r_offset;
ab96bf03 2423 bfd_vma relocation;
252b5132
RH
2424 Elf_Internal_Sym *sym;
2425 asection *sec;
2426 const char *sym_name;
2427 bfd_reloc_status_type r;
2428 const char *errmsg = NULL;
6edf0760 2429 bfd_boolean use_rel = FALSE;
252b5132
RH
2430
2431 h = NULL;
2432 r_type = ELF32_R_TYPE (rel->r_info);
2433 if (r_type < 0 || r_type >= (int) R_M32R_max)
2434 {
695344c0 2435 /* xgettext:c-format */
4eca0228
AM
2436 _bfd_error_handler (_("%B: unknown relocation type %d"),
2437 input_bfd, (int) r_type);
252b5132 2438 bfd_set_error (bfd_error_bad_value);
b34976b6 2439 ret = FALSE;
252b5132
RH
2440 continue;
2441 }
2442
47b0e7ad 2443 if ( r_type == R_M32R_GNU_VTENTRY
6edf0760
NC
2444 || r_type == R_M32R_GNU_VTINHERIT
2445 || r_type == R_M32R_NONE
2446 || r_type == R_M32R_RELA_GNU_VTENTRY
2447 || r_type == R_M32R_RELA_GNU_VTINHERIT)
252b5132
RH
2448 continue;
2449
6edf0760
NC
2450 if (r_type <= R_M32R_GNU_VTENTRY)
2451 use_rel = TRUE;
2452
252b5132
RH
2453 howto = m32r_elf_howto_table + r_type;
2454 r_symndx = ELF32_R_SYM (rel->r_info);
2455
ab96bf03
AM
2456 sym = NULL;
2457 sec = NULL;
2458 h = NULL;
2459
2460 if (r_symndx < symtab_hdr->sh_info)
2461 {
2462 /* Local symbol. */
2463 sym = local_syms + r_symndx;
2464 sec = local_sections[r_symndx];
2465 sym_name = "<local symbol>";
2466
2467 if (!use_rel)
2468 {
2469 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2470 addend = rel->r_addend;
2471 }
2472 else
2473 {
2474 relocation = (sec->output_section->vma
2475 + sec->output_offset
2476 + sym->st_value);
2477 }
2478 }
2479 else
2480 {
2481 /* External symbol. */
2482 relocation = 0;
2483
2484 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8a5da09b
AM
2485
2486 if (info->wrap_hash != NULL
2487 && (input_section->flags & SEC_DEBUGGING) != 0)
2488 h = ((struct elf_link_hash_entry *)
2489 unwrap_hash_lookup (info, input_bfd, &h->root));
2490
ab96bf03
AM
2491 while (h->root.type == bfd_link_hash_indirect
2492 || h->root.type == bfd_link_hash_warning)
2493 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2494 sym_name = h->root.root.string;
2495
2496 if (h->root.type == bfd_link_hash_defined
2497 || h->root.type == bfd_link_hash_defweak)
2498 {
2499 bfd_boolean dyn;
2500 sec = h->root.u.def.section;
2501
2502 dyn = htab->root.dynamic_sections_created;
2503 sec = h->root.u.def.section;
2504 if (r_type == R_M32R_GOTPC24
2505 || (r_type == R_M32R_GOTPC_HI_ULO
2506 || r_type == R_M32R_GOTPC_HI_SLO
2507 || r_type == R_M32R_GOTPC_LO)
2508 || (r_type == R_M32R_26_PLTREL
2509 && h->plt.offset != (bfd_vma) -1)
2510 || ((r_type == R_M32R_GOT24
2511 || r_type == R_M32R_GOT16_HI_ULO
2512 || r_type == R_M32R_GOT16_HI_SLO
2513 || r_type == R_M32R_GOT16_LO)
2514 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L
2515 bfd_link_pic (info),
2516 h)
2517 && (! bfd_link_pic (info)
ab96bf03
AM
2518 || (! info->symbolic && h->dynindx != -1)
2519 || !h->def_regular))
0e1862bb 2520 || (bfd_link_pic (info)
ab96bf03
AM
2521 && ((! info->symbolic && h->dynindx != -1)
2522 || !h->def_regular)
2523 && (((r_type == R_M32R_16_RELA
2524 || r_type == R_M32R_32_RELA
2525 || r_type == R_M32R_24_RELA
2526 || r_type == R_M32R_HI16_ULO_RELA
2527 || r_type == R_M32R_HI16_SLO_RELA
2528 || r_type == R_M32R_LO16_RELA)
2529 && !h->forced_local)
2530 || r_type == R_M32R_REL32
2531 || r_type == R_M32R_10_PCREL_RELA
2532 || r_type == R_M32R_18_PCREL_RELA
2533 || r_type == R_M32R_26_PCREL_RELA)
2534 && ((input_section->flags & SEC_ALLOC) != 0
2535 /* DWARF will emit R_M32R_16(24,32) relocations
2536 in its sections against symbols defined
2537 externally in shared libraries. We can't do
2538 anything with them here. */
2539 || ((input_section->flags & SEC_DEBUGGING) != 0
2540 && h->def_dynamic))))
2541 {
2542 /* In these cases, we don't need the relocation
2543 value. We check specially because in some
2544 obscure cases sec->output_section will be NULL. */
2545 }
2546 else if (sec->output_section != NULL)
2547 relocation = (h->root.u.def.value
2548 + sec->output_section->vma
2549 + sec->output_offset);
0e1862bb 2550 else if (!bfd_link_relocatable (info)
1d5316ab
AM
2551 && (_bfd_elf_section_offset (output_bfd, info,
2552 input_section,
2553 rel->r_offset)
2554 != (bfd_vma) -1))
ab96bf03 2555 {
4eca0228 2556 _bfd_error_handler
695344c0 2557 /* xgettext:c-format */
d42c267e
AM
2558 (_("%B(%A+%#Lx): unresolvable %s relocation "
2559 "against symbol `%s'"),
ab96bf03
AM
2560 input_bfd,
2561 input_section,
d42c267e 2562 rel->r_offset,
ab96bf03
AM
2563 howto->name,
2564 h->root.root.string);
2565 }
2566 }
2567 else if (h->root.type == bfd_link_hash_undefweak)
2568 ;
2569 else if (info->unresolved_syms_in_objects == RM_IGNORE
2570 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2571 ;
0e1862bb 2572 else if (!bfd_link_relocatable (info))
1a72702b
AM
2573 (*info->callbacks->undefined_symbol)
2574 (info, h->root.root.string, input_bfd,
2575 input_section, offset,
2576 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2577 || ELF_ST_VISIBILITY (h->other)));
ab96bf03
AM
2578 }
2579
dbaa2011 2580 if (sec != NULL && discarded_section (sec))
e4067dbb 2581 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2582 rel, 1, relend, howto, 0, contents);
ab96bf03 2583
0e1862bb 2584 if (bfd_link_relocatable (info) && !use_rel)
252b5132 2585 {
1049f94e 2586 /* This is a relocatable link. We don't have to change
252b5132
RH
2587 anything, unless the reloc is against a section symbol,
2588 in which case we have to adjust according to where the
2589 section symbol winds up in the output section. */
ab96bf03
AM
2590 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2591 rel->r_addend += sec->output_offset;
2592 continue;
2593 }
252b5132 2594
0e1862bb 2595 if (bfd_link_relocatable (info) && use_rel)
ab96bf03
AM
2596 {
2597 /* This is a relocatable link. We don't have to change
2598 anything, unless the reloc is against a section symbol,
2599 in which case we have to adjust according to where the
2600 section symbol winds up in the output section. */
2601 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2602 continue;
252b5132 2603
ab96bf03 2604 addend += sec->output_offset;
252b5132 2605
252b5132
RH
2606 /* If partial_inplace, we need to store any additional addend
2607 back in the section. */
2608 if (! howto->partial_inplace)
2609 continue;
2610 /* ??? Here is a nice place to call a special_function
2611 like handler. */
2612 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2613 r = _bfd_relocate_contents (howto, input_bfd,
2614 addend, contents + offset);
2615 else
2616 {
2617 Elf_Internal_Rela *lorel;
2618
2619 /* We allow an arbitrary number of HI16 relocs before the
2620 LO16 reloc. This permits gcc to emit the HI and LO relocs
2621 itself. */
2622 for (lorel = rel + 1;
2623 (lorel < relend
2624 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2625 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2626 lorel++)
2627 continue;
2628 if (lorel < relend
2629 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2630 {
2631 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2632 contents, addend);
2633 r = bfd_reloc_ok;
2634 }
2635 else
2636 r = _bfd_relocate_contents (howto, input_bfd,
2637 addend, contents + offset);
2638 }
252b5132
RH
2639 }
2640 else
2641 {
252b5132 2642 /* Sanity check the address. */
07515404 2643 if (offset > high_address)
252b5132
RH
2644 {
2645 r = bfd_reloc_outofrange;
2646 goto check_reloc;
2647 }
2648
2649 switch ((int) r_type)
2650 {
097f809a
NC
2651 case R_M32R_GOTOFF:
2652 /* Relocation is relative to the start of the global offset
2653 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2654
097f809a
NC
2655 ld24 rx. #label@GOTOFF + addend
2656 sub rx, r12. */
2657
2658 BFD_ASSERT (sgot != NULL);
2659
2660 relocation = -(relocation - sgot->output_section->vma);
2661 rel->r_addend = -rel->r_addend;
2662 break;
2663
2664 case R_M32R_GOTOFF_HI_ULO:
2665 case R_M32R_GOTOFF_HI_SLO:
2666 case R_M32R_GOTOFF_LO:
2667 BFD_ASSERT (sgot != NULL);
2668
2669 relocation -= sgot->output_section->vma;
2670
2671 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2672 && ((relocation + rel->r_addend) & 0x8000))
2673 rel->r_addend += 0x10000;
2674 break;
2675
6edf0760
NC
2676 case R_M32R_GOTPC24:
2677 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2678 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2679 */
2680 relocation = sgot->output_section->vma;
2681 break;
2682
2683 case R_M32R_GOTPC_HI_ULO:
2684 case R_M32R_GOTPC_HI_SLO:
41978308 2685 case R_M32R_GOTPC_LO:
6edf0760
NC
2686 {
2687 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2688 bl .+4
2689 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2690 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2691 or
2692 bl .+4
2693 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2694 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2695 */
2696 relocation = sgot->output_section->vma;
2697 relocation -= (input_section->output_section->vma
2698 + input_section->output_offset
2699 + rel->r_offset);
41978308 2700 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC
2701 && ((relocation + rel->r_addend) & 0x8000))
2702 rel->r_addend += 0x10000;
2703
2704 break;
2705 }
2706 case R_M32R_GOT16_HI_ULO:
2707 case R_M32R_GOT16_HI_SLO:
41978308 2708 case R_M32R_GOT16_LO:
6edf0760
NC
2709 /* Fall through. */
2710 case R_M32R_GOT24:
2711 /* Relocation is to the entry for this symbol in the global
2712 offset table. */
2713 BFD_ASSERT (sgot != NULL);
41978308 2714
6edf0760
NC
2715 if (h != NULL)
2716 {
2717 bfd_boolean dyn;
2718 bfd_vma off;
41978308 2719
6edf0760
NC
2720 off = h->got.offset;
2721 BFD_ASSERT (off != (bfd_vma) -1);
2722
2723 dyn = htab->root.dynamic_sections_created;
0e1862bb
L
2724 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2725 bfd_link_pic (info),
2726 h)
2727 || (bfd_link_pic (info)
6edf0760
NC
2728 && (info->symbolic
2729 || h->dynindx == -1
f5385ebf
AM
2730 || h->forced_local)
2731 && h->def_regular))
6edf0760
NC
2732 {
2733 /* This is actually a static link, or it is a
2734 -Bsymbolic link and the symbol is defined
2735 locally, or the symbol was forced to be local
2736 because of a version file. We must initialize
2737 this entry in the global offset table. Since the
2738 offset must always be a multiple of 4, we use the
2739 least significant bit to record whether we have
2740 initialized it already.
41978308 2741
6edf0760
NC
2742 When doing a dynamic link, we create a .rela.got
2743 relocation entry to initialize the value. This
2744 is done in the finish_dynamic_symbol routine. */
2745 if ((off & 1) != 0)
2746 off &= ~1;
2747 else
2748 {
2749 bfd_put_32 (output_bfd, relocation,
2750 sgot->contents + off);
2751 h->got.offset |= 1;
2752 }
2753 }
41978308 2754
6edf0760
NC
2755 relocation = sgot->output_offset + off;
2756 }
2757 else
2758 {
2759 bfd_vma off;
2760 bfd_byte *loc;
41978308 2761
6edf0760
NC
2762 BFD_ASSERT (local_got_offsets != NULL
2763 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2764
6edf0760 2765 off = local_got_offsets[r_symndx];
41978308 2766
6edf0760
NC
2767 /* The offset must always be a multiple of 4. We use
2768 the least significant bit to record whether we have
2769 already processed this entry. */
2770 if ((off & 1) != 0)
2771 off &= ~1;
2772 else
2773 {
2774 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2775
0e1862bb 2776 if (bfd_link_pic (info))
6edf0760
NC
2777 {
2778 asection *srelgot;
2779 Elf_Internal_Rela outrel;
41978308 2780
6edf0760
NC
2781 /* We need to generate a R_M32R_RELATIVE reloc
2782 for the dynamic linker. */
ce558b89 2783 srelgot = htab->root.srelgot;
6edf0760 2784 BFD_ASSERT (srelgot != NULL);
41978308 2785
6edf0760
NC
2786 outrel.r_offset = (sgot->output_section->vma
2787 + sgot->output_offset
2788 + off);
2789 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2790 outrel.r_addend = relocation;
2791 loc = srelgot->contents;
47b0e7ad 2792 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2793 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2794 ++srelgot->reloc_count;
2795 }
41978308 2796
6edf0760
NC
2797 local_got_offsets[r_symndx] |= 1;
2798 }
41978308 2799
6edf0760
NC
2800 relocation = sgot->output_offset + off;
2801 }
2802 if ((r_type == R_M32R_GOT16_HI_SLO)
2803 && ((relocation + rel->r_addend) & 0x8000))
2804 rel->r_addend += 0x10000;
2805
2806 break;
41978308 2807
6edf0760
NC
2808 case R_M32R_26_PLTREL:
2809 /* Relocation is to the entry for this symbol in the
2810 procedure linkage table. */
41978308 2811
6edf0760
NC
2812 /* The native assembler will generate a 26_PLTREL reloc
2813 for a local symbol if you assemble a call from one
2814 section to another when using -K pic. */
2815 if (h == NULL)
2816 break;
2817
f5385ebf 2818 if (h->forced_local)
6edf0760
NC
2819 break;
2820
2821 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC
2822 /* We didn't make a PLT entry for this symbol. This
2823 happens when statically linking PIC code, or when
2824 using -Bsymbolic. */
2825 break;
41978308 2826
6edf0760
NC
2827 relocation = (splt->output_section->vma
2828 + splt->output_offset
2829 + h->plt.offset);
2830 break;
41978308 2831
6edf0760 2832 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC
2833 if ((relocation + rel->r_addend) & 0x8000)
2834 rel->r_addend += 0x10000;
6edf0760 2835 /* Fall through. */
47b0e7ad 2836
6edf0760
NC
2837 case R_M32R_16_RELA:
2838 case R_M32R_24_RELA:
2839 case R_M32R_32_RELA:
157e7bd1 2840 case R_M32R_REL32:
8ce757c4 2841 case R_M32R_10_PCREL_RELA:
6edf0760
NC
2842 case R_M32R_18_PCREL_RELA:
2843 case R_M32R_26_PCREL_RELA:
2844 case R_M32R_HI16_ULO_RELA:
2845 case R_M32R_LO16_RELA:
0e1862bb 2846 if (bfd_link_pic (info)
cf35638d 2847 && r_symndx != STN_UNDEF
6edf0760 2848 && (input_section->flags & SEC_ALLOC) != 0
8ce757c4
NC
2849 && (( r_type != R_M32R_10_PCREL_RELA
2850 && r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC
2851 && r_type != R_M32R_26_PCREL_RELA
2852 && r_type != R_M32R_REL32)
6edf0760
NC
2853 || (h != NULL
2854 && h->dynindx != -1
2855 && (! info->symbolic
f5385ebf 2856 || !h->def_regular))))
6edf0760
NC
2857 {
2858 Elf_Internal_Rela outrel;
2859 bfd_boolean skip, relocate;
2860 bfd_byte *loc;
41978308 2861
6edf0760
NC
2862 /* When generating a shared object, these relocations
2863 are copied into the output file to be resolved at run
2864 time. */
6edf0760
NC
2865 if (sreloc == NULL)
2866 {
83bac4b0
NC
2867 sreloc = _bfd_elf_get_dynamic_reloc_section
2868 (input_bfd, input_section, /*rela?*/ TRUE);
2869 if (sreloc == NULL)
2870 return FALSE;
6edf0760 2871 }
41978308 2872
6edf0760
NC
2873 skip = FALSE;
2874 relocate = FALSE;
41978308 2875
6edf0760
NC
2876 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2877 info,
2878 input_section,
2879 rel->r_offset);
2880 if (outrel.r_offset == (bfd_vma) -1)
2881 skip = TRUE;
2882 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2883 skip = relocate = TRUE;
6edf0760
NC
2884 outrel.r_offset += (input_section->output_section->vma
2885 + input_section->output_offset);
41978308 2886
6edf0760
NC
2887 if (skip)
2888 memset (&outrel, 0, sizeof outrel);
8ce757c4
NC
2889 else if ( r_type == R_M32R_10_PCREL_RELA
2890 || r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC
2891 || r_type == R_M32R_26_PCREL_RELA
2892 || r_type == R_M32R_REL32)
6edf0760
NC
2893 {
2894 BFD_ASSERT (h != NULL && h->dynindx != -1);
2895 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2896 outrel.r_addend = rel->r_addend;
2897 }
2898 else
2899 {
2900 /* h->dynindx may be -1 if this symbol was marked to
2901 become local. */
2902 if (h == NULL
2903 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2904 && h->def_regular))
6edf0760
NC
2905 {
2906 relocate = TRUE;
2907 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2908 outrel.r_addend = relocation + rel->r_addend;
2909 }
2910 else
2911 {
2912 BFD_ASSERT (h->dynindx != -1);
2913 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2914 outrel.r_addend = relocation + rel->r_addend;
2915 }
2916 }
2917
2918 loc = sreloc->contents;
47b0e7ad 2919 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2920 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2921 ++sreloc->reloc_count;
2922
2923 /* If this reloc is against an external symbol, we do
2924 not want to fiddle with the addend. Otherwise, we
2925 need to include the symbol value so that it becomes
2926 an addend for the dynamic reloc. */
2927 if (! relocate)
2928 continue;
8ce757c4 2929 break;
6edf0760 2930 }
8ce757c4
NC
2931 else if (r_type != R_M32R_10_PCREL_RELA)
2932 break;
2933 /* Fall through. */
41978308 2934
252b5132
RH
2935 case (int) R_M32R_10_PCREL :
2936 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2937 contents, offset,
2938 sec, relocation, addend);
6edf0760 2939 goto check_reloc;
252b5132
RH
2940
2941 case (int) R_M32R_HI16_SLO :
2942 case (int) R_M32R_HI16_ULO :
2943 {
2944 Elf_Internal_Rela *lorel;
2945
2946 /* We allow an arbitrary number of HI16 relocs before the
2947 LO16 reloc. This permits gcc to emit the HI and LO relocs
2948 itself. */
2949 for (lorel = rel + 1;
2950 (lorel < relend
2951 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2952 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2953 lorel++)
2954 continue;
2955 if (lorel < relend
2956 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2957 {
2958 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2959 contents, relocation + addend);
2960 r = bfd_reloc_ok;
2961 }
2962 else
2963 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2964 contents, offset,
2965 relocation, addend);
2966 }
6edf0760
NC
2967
2968 goto check_reloc;
252b5132 2969
af705ba8 2970 case (int) R_M32R_SDA16_RELA:
252b5132
RH
2971 case (int) R_M32R_SDA16 :
2972 {
2973 const char *name;
2974
2975 BFD_ASSERT (sec != NULL);
a0f49396 2976 name = bfd_get_section_name (sec->owner, sec);
252b5132 2977
47b0e7ad 2978 if ( strcmp (name, ".sdata") == 0
252b5132
RH
2979 || strcmp (name, ".sbss") == 0
2980 || strcmp (name, ".scommon") == 0)
2981 {
2982 bfd_vma sda_base;
2983 bfd *out_bfd = sec->output_section->owner;
2984
2985 r = m32r_elf_final_sda_base (out_bfd, info,
2986 &errmsg,
2987 &sda_base);
2988 if (r != bfd_reloc_ok)
2989 {
b34976b6 2990 ret = FALSE;
252b5132
RH
2991 goto check_reloc;
2992 }
2993
2994 /* At this point `relocation' contains the object's
2995 address. */
2996 relocation -= sda_base;
2997 /* Now it contains the offset from _SDA_BASE_. */
2998 }
2999 else
3000 {
4eca0228 3001 _bfd_error_handler
695344c0 3002 /* xgettext:c-format */
d003868e
AM
3003 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3004 input_bfd,
8f615d07 3005 sym_name,
c08bb8dd
AM
3006 m32r_elf_howto_table[(int) r_type].name,
3007 sec);
252b5132 3008 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3009 ret = FALSE;
252b5132
RH
3010 continue;
3011 }
3012 }
47b0e7ad 3013 /* Fall through. */
6edf0760
NC
3014
3015 default : /* OLD_M32R_RELOC */
252b5132 3016
252b5132
RH
3017 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3018 contents, offset,
3019 relocation, addend);
6edf0760 3020 goto check_reloc;
252b5132 3021 }
6edf0760
NC
3022
3023 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3024 contents, rel->r_offset,
3025 relocation, rel->r_addend);
3026
252b5132
RH
3027 }
3028
3029 check_reloc:
3030
3031 if (r != bfd_reloc_ok)
3032 {
3033 /* FIXME: This should be generic enough to go in a utility. */
3034 const char *name;
3035
3036 if (h != NULL)
3037 name = h->root.root.string;
3038 else
3039 {
3040 name = (bfd_elf_string_from_elf_section
3041 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3042 if (name == NULL || *name == '\0')
3043 name = bfd_section_name (input_bfd, sec);
3044 }
3045
3046 if (errmsg != NULL)
3047 goto common_error;
3048
3049 switch (r)
3050 {
3051 case bfd_reloc_overflow:
1a72702b
AM
3052 (*info->callbacks->reloc_overflow)
3053 (info, (h ? &h->root : NULL), name, howto->name,
3054 (bfd_vma) 0, input_bfd, input_section, offset);
252b5132
RH
3055 break;
3056
3057 case bfd_reloc_undefined:
1a72702b
AM
3058 (*info->callbacks->undefined_symbol)
3059 (info, name, input_bfd, input_section, offset, TRUE);
252b5132
RH
3060 break;
3061
3062 case bfd_reloc_outofrange:
3063 errmsg = _("internal error: out of range error");
3064 goto common_error;
3065
3066 case bfd_reloc_notsupported:
3067 errmsg = _("internal error: unsupported relocation error");
3068 goto common_error;
3069
3070 case bfd_reloc_dangerous:
3071 errmsg = _("internal error: dangerous error");
3072 goto common_error;
3073
3074 default:
3075 errmsg = _("internal error: unknown error");
3076 /* fall through */
3077
3078 common_error:
1a72702b
AM
3079 (*info->callbacks->warning) (info, errmsg, name, input_bfd,
3080 input_section, offset);
252b5132
RH
3081 break;
3082 }
3083 }
3084 }
3085
3086 return ret;
3087}
6edf0760
NC
3088
3089/* Finish up dynamic symbol handling. We set the contents of various
3090 dynamic sections here. */
47b0e7ad 3091
6edf0760 3092static bfd_boolean
47b0e7ad
NC
3093m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3094 struct bfd_link_info *info,
3095 struct elf_link_hash_entry *h,
3096 Elf_Internal_Sym *sym)
6edf0760
NC
3097{
3098 struct elf_m32r_link_hash_table *htab;
6edf0760 3099 bfd_byte *loc;
41978308 3100
6edf0760 3101#ifdef DEBUG_PIC
47b0e7ad 3102 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3103#endif
41978308 3104
6edf0760 3105 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
3106 if (htab == NULL)
3107 return FALSE;
3108
6edf0760
NC
3109 if (h->plt.offset != (bfd_vma) -1)
3110 {
3111 asection *splt;
3112 asection *sgot;
3113 asection *srela;
3114
3115 bfd_vma plt_index;
3116 bfd_vma got_offset;
3117 Elf_Internal_Rela rela;
41978308 3118
6edf0760
NC
3119 /* This symbol has an entry in the procedure linkage table. Set
3120 it up. */
41978308 3121
6edf0760 3122 BFD_ASSERT (h->dynindx != -1);
41978308 3123
ce558b89
AM
3124 splt = htab->root.splt;
3125 sgot = htab->root.sgotplt;
3126 srela = htab->root.srelplt;
6edf0760
NC
3127 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3128
3129 /* Get the index in the procedure linkage table which
3130 corresponds to this symbol. This is the index of this symbol
3131 in all the symbols for which we are making plt entries. The
3132 first entry in the procedure linkage table is reserved. */
3133 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3134
3135 /* Get the offset into the .got table of the entry that
3136 corresponds to this function. Each .got entry is 4 bytes.
3137 The first three are reserved. */
3138 got_offset = (plt_index + 3) * 4;
3139
3140 /* Fill in the entry in the procedure linkage table. */
0e1862bb 3141 if (! bfd_link_pic (info))
6edf0760
NC
3142 {
3143 bfd_put_32 (output_bfd,
3144 (PLT_ENTRY_WORD0b
3145 + (((sgot->output_section->vma
3146 + sgot->output_offset
3147 + got_offset) >> 16) & 0xffff)),
3148 splt->contents + h->plt.offset);
3149 bfd_put_32 (output_bfd,
3150 (PLT_ENTRY_WORD1b
3151 + ((sgot->output_section->vma
3152 + sgot->output_offset
3153 + got_offset) & 0xffff)),
3154 splt->contents + h->plt.offset + 4);
3155 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3156 splt->contents + h->plt.offset + 8);
3157 bfd_put_32 (output_bfd,
3158 (PLT_ENTRY_WORD3
3159 + plt_index * sizeof (Elf32_External_Rela)),
3160 splt->contents + h->plt.offset + 12);
3161 bfd_put_32 (output_bfd,
3162 (PLT_ENTRY_WORD4
3163 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3164 splt->contents + h->plt.offset + 16);
3165 }
3166 else
3167 {
3168 bfd_put_32 (output_bfd,
3169 PLT_ENTRY_WORD0 + got_offset,
3170 splt->contents + h->plt.offset);
3171 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3172 splt->contents + h->plt.offset + 4);
3173 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3174 splt->contents + h->plt.offset + 8);
3175 bfd_put_32 (output_bfd,
3176 (PLT_ENTRY_WORD3
3177 + plt_index * sizeof (Elf32_External_Rela)),
3178 splt->contents + h->plt.offset + 12);
3179 bfd_put_32 (output_bfd,
3180 (PLT_ENTRY_WORD4
3181 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3182 splt->contents + h->plt.offset + 16);
3183 }
41978308 3184
6edf0760
NC
3185 /* Fill in the entry in the global offset table. */
3186 bfd_put_32 (output_bfd,
3187 (splt->output_section->vma
3188 + splt->output_offset
3189 + h->plt.offset
3190 + 12), /* same offset */
3191 sgot->contents + got_offset);
3192
3193 /* Fill in the entry in the .rela.plt section. */
3194 rela.r_offset = (sgot->output_section->vma
3195 + sgot->output_offset
3196 + got_offset);
3197 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3198 rela.r_addend = 0;
3199 loc = srela->contents;
47b0e7ad 3200 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3201 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3202
f5385ebf 3203 if (!h->def_regular)
6edf0760
NC
3204 {
3205 /* Mark the symbol as undefined, rather than as defined in
3206 the .plt section. Leave the value alone. */
3207 sym->st_shndx = SHN_UNDEF;
3208 }
3209 }
3210
3211 if (h->got.offset != (bfd_vma) -1)
3212 {
3213 asection *sgot;
3214 asection *srela;
3215 Elf_Internal_Rela rela;
41978308 3216
6edf0760
NC
3217 /* This symbol has an entry in the global offset table. Set it
3218 up. */
41978308 3219
ce558b89
AM
3220 sgot = htab->root.sgot;
3221 srela = htab->root.srelgot;
6edf0760 3222 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3223
6edf0760
NC
3224 rela.r_offset = (sgot->output_section->vma
3225 + sgot->output_offset
3226 + (h->got.offset &~ 1));
41978308 3227
6edf0760
NC
3228 /* If this is a -Bsymbolic link, and the symbol is defined
3229 locally, we just want to emit a RELATIVE reloc. Likewise if
3230 the symbol was forced to be local because of a version file.
3231 The entry in the global offset table will already have been
3232 initialized in the relocate_section function. */
0e1862bb 3233 if (bfd_link_pic (info)
6edf0760
NC
3234 && (info->symbolic
3235 || h->dynindx == -1
f5385ebf
AM
3236 || h->forced_local)
3237 && h->def_regular)
6edf0760
NC
3238 {
3239 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3240 rela.r_addend = (h->root.u.def.value
3241 + h->root.u.def.section->output_section->vma
3242 + h->root.u.def.section->output_offset);
3243 }
3244 else
3245 {
47b0e7ad 3246 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC
3247 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3248 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3249 rela.r_addend = 0;
3250 }
41978308 3251
6edf0760 3252 loc = srela->contents;
47b0e7ad 3253 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3254 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3255 ++srela->reloc_count;
3256 }
41978308 3257
f5385ebf 3258 if (h->needs_copy)
6edf0760
NC
3259 {
3260 asection *s;
3261 Elf_Internal_Rela rela;
41978308 3262
6edf0760 3263 /* This symbols needs a copy reloc. Set it up. */
41978308 3264
6edf0760
NC
3265 BFD_ASSERT (h->dynindx != -1
3266 && (h->root.type == bfd_link_hash_defined
3267 || h->root.type == bfd_link_hash_defweak));
41978308 3268
3d4d4302 3269 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
6edf0760 3270 BFD_ASSERT (s != NULL);
41978308 3271
6edf0760
NC
3272 rela.r_offset = (h->root.u.def.value
3273 + h->root.u.def.section->output_section->vma
3274 + h->root.u.def.section->output_offset);
3275 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3276 rela.r_addend = 0;
3277 loc = s->contents;
47b0e7ad 3278 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3279 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3280 ++s->reloc_count;
3281 }
41978308 3282
6edf0760 3283 /* Mark some specially defined symbols as absolute. */
9637f6ef 3284 if (h == htab->root.hdynamic || h == htab->root.hgot)
6edf0760 3285 sym->st_shndx = SHN_ABS;
41978308 3286
6edf0760
NC
3287 return TRUE;
3288}
3289
3290
3291/* Finish up the dynamic sections. */
41978308 3292
6edf0760 3293static bfd_boolean
47b0e7ad
NC
3294m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3295 struct bfd_link_info *info)
6edf0760
NC
3296{
3297 struct elf_m32r_link_hash_table *htab;
3298 bfd *dynobj;
3299 asection *sdyn;
3300 asection *sgot;
3301
3302#ifdef DEBUG_PIC
47b0e7ad 3303 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3304#endif
41978308 3305
6edf0760 3306 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
3307 if (htab == NULL)
3308 return FALSE;
3309
6edf0760
NC
3310 dynobj = htab->root.dynobj;
3311
ce558b89 3312 sgot = htab->root.sgotplt;
3d4d4302 3313 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
41978308 3314
6edf0760
NC
3315 if (htab->root.dynamic_sections_created)
3316 {
3317 asection *splt;
3318 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3319
6edf0760 3320 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3321
6edf0760 3322 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3323 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC
3324
3325 for (; dyncon < dynconend; dyncon++)
3326 {
3327 Elf_Internal_Dyn dyn;
6edf0760 3328 asection *s;
41978308 3329
6edf0760 3330 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3331
6edf0760
NC
3332 switch (dyn.d_tag)
3333 {
3334 default:
3335 break;
3336
3337 case DT_PLTGOT:
ce558b89 3338 s = htab->root.sgotplt;
6edf0760
NC
3339 goto get_vma;
3340 case DT_JMPREL:
ce558b89 3341 s = htab->root.srelplt;
6edf0760 3342 get_vma:
4ade44b7 3343 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
6edf0760
NC
3344 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3345 break;
3346
3347 case DT_PLTRELSZ:
ce558b89 3348 s = htab->root.srelplt;
eea6121a 3349 dyn.d_un.d_val = s->size;
6edf0760
NC
3350 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3351 break;
6edf0760
NC
3352 }
3353 }
41978308 3354
6edf0760 3355 /* Fill in the first entry in the procedure linkage table. */
ce558b89 3356 splt = htab->root.splt;
eea6121a 3357 if (splt && splt->size > 0)
6edf0760 3358 {
0e1862bb 3359 if (bfd_link_pic (info))
6edf0760
NC
3360 {
3361 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3362 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3363 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3364 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3365 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3366 }
3367 else
3368 {
3369 unsigned long addr;
3370 /* addr = .got + 4 */
3371 addr = sgot->output_section->vma + sgot->output_offset + 4;
3372 bfd_put_32 (output_bfd,
3373 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3374 splt->contents);
41978308 3375 bfd_put_32 (output_bfd,
6edf0760
NC
3376 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3377 splt->contents + 4);
3378 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3379 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3380 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3381 }
3382
3383 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3384 PLT_ENTRY_SIZE;
3385 }
3386 }
3387
3388 /* Fill in the first three entries in the global offset table. */
eea6121a 3389 if (sgot && sgot->size > 0)
6edf0760
NC
3390 {
3391 if (sdyn == NULL)
3392 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3393 else
3394 bfd_put_32 (output_bfd,
3395 sdyn->output_section->vma + sdyn->output_offset,
3396 sgot->contents);
3397 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3398 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3399
3400 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3401 }
41978308 3402
6edf0760
NC
3403 return TRUE;
3404}
3405
252b5132
RH
3406\f
3407/* Set the right machine number. */
47b0e7ad 3408
b34976b6 3409static bfd_boolean
47b0e7ad 3410m32r_elf_object_p (bfd *abfd)
252b5132
RH
3411{
3412 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3413 {
3414 default:
3415 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3416 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3417 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3418 }
b34976b6 3419 return TRUE;
252b5132
RH
3420}
3421
3422/* Store the machine number in the flags field. */
47b0e7ad 3423
252b5132 3424static void
47b0e7ad
NC
3425m32r_elf_final_write_processing (bfd *abfd,
3426 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH
3427{
3428 unsigned long val;
3429
3430 switch (bfd_get_mach (abfd))
3431 {
3432 default:
3433 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3434 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3435 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH
3436 }
3437
3438 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3439 elf_elfheader (abfd)->e_flags |= val;
3440}
3441
c3668558 3442/* Function to keep M32R specific file flags. */
47b0e7ad 3443
b34976b6 3444static bfd_boolean
47b0e7ad 3445m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH
3446{
3447 BFD_ASSERT (!elf_flags_init (abfd)
3448 || elf_elfheader (abfd)->e_flags == flags);
3449
3450 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM
3451 elf_flags_init (abfd) = TRUE;
3452 return TRUE;
252b5132
RH
3453}
3454
252b5132
RH
3455/* Merge backend specific data from an object file to the output
3456 object file when linking. */
47b0e7ad 3457
b34976b6 3458static bfd_boolean
50e03d47 3459m32r_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
252b5132 3460{
50e03d47 3461 bfd *obfd = info->output_bfd;
252b5132
RH
3462 flagword out_flags;
3463 flagword in_flags;
3464
3465 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3466 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3467 return TRUE;
252b5132
RH
3468
3469 in_flags = elf_elfheader (ibfd)->e_flags;
3470 out_flags = elf_elfheader (obfd)->e_flags;
3471
3472 if (! elf_flags_init (obfd))
3473 {
3474 /* If the input is the default architecture then do not
3475 bother setting the flags for the output architecture,
3476 instead allow future merges to do this. If no future
3477 merges ever set these flags then they will retain their
3478 unitialised values, which surprise surprise, correspond
3479 to the default values. */
3480 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3481 return TRUE;
c3668558 3482
b34976b6 3483 elf_flags_init (obfd) = TRUE;
252b5132
RH
3484 elf_elfheader (obfd)->e_flags = in_flags;
3485
3486 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3487 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC
3488 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3489 bfd_get_mach (ibfd));
252b5132 3490
b34976b6 3491 return TRUE;
252b5132
RH
3492 }
3493
3494 /* Check flag compatibility. */
3495 if (in_flags == out_flags)
b34976b6 3496 return TRUE;
252b5132
RH
3497
3498 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3499 {
88845958
NC
3500 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3501 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3502 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3503 {
4eca0228 3504 _bfd_error_handler
d003868e 3505 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH
3506
3507 bfd_set_error (bfd_error_bad_value);
b34976b6 3508 return FALSE;
252b5132
RH
3509 }
3510 }
3511
b34976b6 3512 return TRUE;
252b5132
RH
3513}
3514
47b0e7ad
NC
3515/* Display the flags field. */
3516
b34976b6 3517static bfd_boolean
47b0e7ad 3518m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH
3519{
3520 FILE * file = (FILE *) ptr;
c3668558 3521
f12123c0 3522 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3523
252b5132 3524 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3525
252b5132 3526 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3527
252b5132
RH
3528 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3529 {
3530 default:
3531 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3532 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3533 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3534 }
c3668558 3535
252b5132 3536 fputc ('\n', file);
c3668558 3537
b34976b6 3538 return TRUE;
252b5132
RH
3539}
3540
47b0e7ad
NC
3541static asection *
3542m32r_elf_gc_mark_hook (asection *sec,
07adf181 3543 struct bfd_link_info *info,
47b0e7ad
NC
3544 Elf_Internal_Rela *rel,
3545 struct elf_link_hash_entry *h,
3546 Elf_Internal_Sym *sym)
252b5132
RH
3547{
3548 if (h != NULL)
07adf181 3549 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH
3550 {
3551 case R_M32R_GNU_VTINHERIT:
3552 case R_M32R_GNU_VTENTRY:
6edf0760
NC
3553 case R_M32R_RELA_GNU_VTINHERIT:
3554 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM
3555 return NULL;
3556 }
1e2f5b6e 3557
07adf181 3558 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH
3559}
3560
252b5132
RH
3561/* Look through the relocs for a section during the first phase.
3562 Since we don't do .gots or .plts, we just need to consider the
3563 virtual table relocs for gc. */
c3668558 3564
b34976b6 3565static bfd_boolean
47b0e7ad
NC
3566m32r_elf_check_relocs (bfd *abfd,
3567 struct bfd_link_info *info,
3568 asection *sec,
3569 const Elf_Internal_Rela *relocs)
252b5132
RH
3570{
3571 Elf_Internal_Shdr *symtab_hdr;
5582a088 3572 struct elf_link_hash_entry **sym_hashes;
252b5132
RH
3573 const Elf_Internal_Rela *rel;
3574 const Elf_Internal_Rela *rel_end;
6edf0760
NC
3575 struct elf_m32r_link_hash_table *htab;
3576 bfd *dynobj;
c7e2358a 3577 asection *sreloc;
c3668558 3578
0e1862bb 3579 if (bfd_link_relocatable (info))
b34976b6 3580 return TRUE;
c3668558 3581
c7e2358a 3582 sreloc = NULL;
252b5132
RH
3583 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3584 sym_hashes = elf_sym_hashes (abfd);
c3668558 3585
6edf0760 3586 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
3587 if (htab == NULL)
3588 return FALSE;
3589
6edf0760 3590 dynobj = htab->root.dynobj;
6edf0760 3591
252b5132
RH
3592 rel_end = relocs + sec->reloc_count;
3593 for (rel = relocs; rel < rel_end; rel++)
3594 {
6edf0760 3595 int r_type;
252b5132
RH
3596 struct elf_link_hash_entry *h;
3597 unsigned long r_symndx;
c3668558 3598
252b5132 3599 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3600 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH
3601 if (r_symndx < symtab_hdr->sh_info)
3602 h = NULL;
3603 else
973a3492
L
3604 {
3605 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3606 while (h->root.type == bfd_link_hash_indirect
3607 || h->root.type == bfd_link_hash_warning)
3608 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3609 }
c3668558 3610
6edf0760 3611 /* Some relocs require a global offset table. */
ce558b89 3612 if (htab->root.sgot == NULL)
6edf0760
NC
3613 {
3614 switch (r_type)
3615 {
3616 case R_M32R_GOT16_HI_ULO:
3617 case R_M32R_GOT16_HI_SLO:
097f809a
NC
3618 case R_M32R_GOTOFF:
3619 case R_M32R_GOTOFF_HI_ULO:
3620 case R_M32R_GOTOFF_HI_SLO:
3621 case R_M32R_GOTOFF_LO:
6edf0760
NC
3622 case R_M32R_GOT16_LO:
3623 case R_M32R_GOTPC24:
3624 case R_M32R_GOTPC_HI_ULO:
3625 case R_M32R_GOTPC_HI_SLO:
3626 case R_M32R_GOTPC_LO:
3627 case R_M32R_GOT24:
3628 if (dynobj == NULL)
3629 htab->root.dynobj = dynobj = abfd;
ce558b89 3630 if (!_bfd_elf_create_got_section (dynobj, info))
6edf0760
NC
3631 return FALSE;
3632 break;
3633
3634 default:
3635 break;
3636 }
3637 }
3638
3639 switch (r_type)
252b5132 3640 {
6edf0760
NC
3641 case R_M32R_GOT16_HI_ULO:
3642 case R_M32R_GOT16_HI_SLO:
41978308 3643 case R_M32R_GOT16_LO:
6edf0760
NC
3644 case R_M32R_GOT24:
3645
3646 if (h != NULL)
3647 h->got.refcount += 1;
3648 else
3649 {
3650 bfd_signed_vma *local_got_refcounts;
3651
3652 /* This is a global offset table entry for a local
3653 symbol. */
3654 local_got_refcounts = elf_local_got_refcounts (abfd);
3655 if (local_got_refcounts == NULL)
3656 {
3657 bfd_size_type size;
3658
3659 size = symtab_hdr->sh_info;
3660 size *= sizeof (bfd_signed_vma);
47b0e7ad 3661 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC
3662 if (local_got_refcounts == NULL)
3663 return FALSE;
3664 elf_local_got_refcounts (abfd) = local_got_refcounts;
3665 }
3666 local_got_refcounts[r_symndx] += 1;
3667 }
3668 break;
3669
3670 case R_M32R_26_PLTREL:
3671 /* This symbol requires a procedure linkage table entry. We
3672 actually build the entry in adjust_dynamic_symbol,
3673 because this might be a case of linking PIC code without
3674 linking in any dynamic objects, in which case we don't
3675 need to generate a procedure linkage table after all. */
41978308 3676
6edf0760
NC
3677 /* If this is a local symbol, we resolve it directly without
3678 creating a procedure linkage table entry. */
3679 if (h == NULL)
3680 continue;
3681
f5385ebf 3682 if (h->forced_local)
6edf0760
NC
3683 break;
3684
f5385ebf 3685 h->needs_plt = 1;
6edf0760
NC
3686 h->plt.refcount += 1;
3687 break;
3688
3689 case R_M32R_16_RELA:
3690 case R_M32R_24_RELA:
3691 case R_M32R_32_RELA:
157e7bd1 3692 case R_M32R_REL32:
6edf0760
NC
3693 case R_M32R_HI16_ULO_RELA:
3694 case R_M32R_HI16_SLO_RELA:
3695 case R_M32R_LO16_RELA:
3696 case R_M32R_SDA16_RELA:
8ce757c4 3697 case R_M32R_10_PCREL_RELA:
6edf0760
NC
3698 case R_M32R_18_PCREL_RELA:
3699 case R_M32R_26_PCREL_RELA:
3700
0e1862bb 3701 if (h != NULL && !bfd_link_pic (info))
6edf0760 3702 {
f5385ebf 3703 h->non_got_ref = 1;
6edf0760
NC
3704 h->plt.refcount += 1;
3705 }
3706
3707 /* If we are creating a shared library, and this is a reloc
3708 against a global symbol, or a non PC relative reloc
3709 against a local symbol, then we need to copy the reloc
3710 into the shared library. However, if we are linking with
3711 -Bsymbolic, we do not need to copy a reloc against a
3712 global symbol which is defined in an object we are
3713 including in the link (i.e., DEF_REGULAR is set). At
3714 this point we have not seen all the input files, so it is
3715 possible that DEF_REGULAR is not set now but will be set
3716 later (it is never cleared). We account for that
3717 possibility below by storing information in the
3718 dyn_relocs field of the hash table entry. A similar
3719 situation occurs when creating shared libraries and symbol
3720 visibility changes render the symbol local.
3721
3722 If on the other hand, we are creating an executable, we
3723 may need to keep relocations for symbols satisfied by a
3724 dynamic library if we manage to avoid copy relocs for the
3725 symbol. */
0e1862bb 3726 if ((bfd_link_pic (info)
6edf0760 3727 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3728 && (( r_type != R_M32R_26_PCREL_RELA
157e7bd1 3729 && r_type != R_M32R_18_PCREL_RELA
8ce757c4 3730 && r_type != R_M32R_10_PCREL_RELA
157e7bd1 3731 && r_type != R_M32R_REL32)
6edf0760
NC
3732 || (h != NULL
3733 && (! info->symbolic
3734 || h->root.type == bfd_link_hash_defweak
f5385ebf 3735 || !h->def_regular))))
0e1862bb 3736 || (!bfd_link_pic (info)
6edf0760
NC
3737 && (sec->flags & SEC_ALLOC) != 0
3738 && h != NULL
3739 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3740 || !h->def_regular)))
6edf0760
NC
3741 {
3742 struct elf_m32r_dyn_relocs *p;
3743 struct elf_m32r_dyn_relocs **head;
3744
3745 if (dynobj == NULL)
3746 htab->root.dynobj = dynobj = abfd;
3747
3748 /* When creating a shared object, we must copy these
3749 relocs into the output file. We create a reloc
3750 section in dynobj and make room for the reloc. */
3751 if (sreloc == NULL)
3752 {
83bac4b0
NC
3753 sreloc = _bfd_elf_make_dynamic_reloc_section
3754 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
41978308 3755
83bac4b0
NC
3756 if (sreloc == NULL)
3757 return FALSE;
6edf0760 3758 }
41978308 3759
6edf0760
NC
3760 /* If this is a global symbol, we count the number of
3761 relocations we need for this symbol. */
3762 if (h != NULL)
3763 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3764 else
3765 {
87d72d41 3766 /* Track dynamic relocs needed for local syms too. */
6edf0760 3767 asection *s;
6edfbbad 3768 void *vpp;
87d72d41 3769 Elf_Internal_Sym *isym;
6edf0760 3770
87d72d41
AM
3771 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3772 abfd, r_symndx);
3773 if (isym == NULL)
3774 return FALSE;
3775
3776 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3777 if (s == NULL)
3778 s = sec;
6edf0760 3779
6edfbbad
DJ
3780 vpp = &elf_section_data (s)->local_dynrel;
3781 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC
3782 }
3783
3784 p = *head;
3785 if (p == NULL || p->sec != sec)
3786 {
3787 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC
3788
3789 p = bfd_alloc (dynobj, amt);
6edf0760
NC
3790 if (p == NULL)
3791 return FALSE;
3792 p->next = *head;
3793 *head = p;
3794 p->sec = sec;
3795 p->count = 0;
3796 p->pc_count = 0;
3797 }
3798
3799 p->count += 1;
8ce757c4
NC
3800 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3801 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3802 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3803 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
6edf0760
NC
3804 p->pc_count += 1;
3805 }
3806 break;
3807
252b5132
RH
3808 /* This relocation describes the C++ object vtable hierarchy.
3809 Reconstruct it for later use during GC. */
6edf0760 3810 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 3811 case R_M32R_GNU_VTINHERIT:
c152c796 3812 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3813 return FALSE;
252b5132 3814 break;
c3668558 3815
252b5132
RH
3816 /* This relocation describes which C++ vtable entries are actually
3817 used. Record for later use during GC. */
3818 case R_M32R_GNU_VTENTRY:
d17e0c6e
JB
3819 BFD_ASSERT (h != NULL);
3820 if (h != NULL
3821 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 3822 return FALSE;
252b5132 3823 break;
6edf0760 3824 case R_M32R_RELA_GNU_VTENTRY:
d17e0c6e
JB
3825 BFD_ASSERT (h != NULL);
3826 if (h != NULL
3827 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC
3828 return FALSE;
3829 break;
252b5132
RH
3830 }
3831 }
c3668558 3832
b34976b6 3833 return TRUE;
252b5132 3834}
2f89ff8d 3835
b35d266b 3836static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 3837{
0112cd26
NC
3838 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3839 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3840 { NULL, 0, 0, 0, 0 }
7f4d3958
L
3841};
3842
6edf0760 3843static enum elf_reloc_type_class
7e612e98
AM
3844m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3845 const asection *rel_sec ATTRIBUTE_UNUSED,
3846 const Elf_Internal_Rela *rela)
6edf0760
NC
3847{
3848 switch ((int) ELF32_R_TYPE (rela->r_info))
3849 {
47b0e7ad
NC
3850 case R_M32R_RELATIVE: return reloc_class_relative;
3851 case R_M32R_JMP_SLOT: return reloc_class_plt;
3852 case R_M32R_COPY: return reloc_class_copy;
3853 default: return reloc_class_normal;
6edf0760
NC
3854 }
3855}
252b5132 3856\f
252b5132 3857#define ELF_ARCH bfd_arch_m32r
ae95ffa6 3858#define ELF_TARGET_ID M32R_ELF_DATA
aa4f99bb
AO
3859#define ELF_MACHINE_CODE EM_M32R
3860#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 3861#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132 3862
6d00b590 3863#define TARGET_BIG_SYM m32r_elf32_vec
252b5132 3864#define TARGET_BIG_NAME "elf32-m32r"
6d00b590 3865#define TARGET_LITTLE_SYM m32r_elf32_le_vec
6edf0760 3866#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 3867
6edf0760 3868#define elf_info_to_howto m32r_info_to_howto
252b5132
RH
3869#define elf_info_to_howto_rel m32r_info_to_howto_rel
3870#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
3871#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
3872#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
3873#define elf_backend_relocate_section m32r_elf_relocate_section
3874#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
252b5132
RH
3875#define elf_backend_check_relocs m32r_elf_check_relocs
3876
6edf0760
NC
3877#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
3878#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
3879#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
74541ad4
AM
3880#define elf_backend_omit_section_dynsym \
3881 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
6edf0760
NC
3882#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
3883#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
3884#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
3885#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
3886#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
3887
252b5132 3888#define elf_backend_can_gc_sections 1
6edf0760 3889/*#if !USE_REL
b491616a 3890#define elf_backend_rela_normal 1
6edf0760
NC
3891#endif*/
3892#define elf_backend_can_refcount 1
3893#define elf_backend_want_got_plt 1
3894#define elf_backend_plt_readonly 1
3895#define elf_backend_want_plt_sym 0
3896#define elf_backend_got_header_size 12
64f52338 3897#define elf_backend_dtrel_excludes_plt 1
6edf0760
NC
3898
3899#define elf_backend_may_use_rel_p 1
3900#ifdef USE_M32R_OLD_RELOC
3901#define elf_backend_default_use_rela_p 0
3902#define elf_backend_may_use_rela_p 0
3903#else
3904#define elf_backend_default_use_rela_p 1
3905#define elf_backend_may_use_rela_p 1
b491616a 3906#endif
6edf0760 3907
252b5132
RH
3908#define elf_backend_object_p m32r_elf_object_p
3909#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH
3910#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
3911#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
3912#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 3913#define elf_backend_special_sections m32r_elf_special_sections
c3668558 3914
a2f63b2e
MR
3915#define elf_backend_linux_prpsinfo32_ugid16 TRUE
3916
252b5132 3917#include "elf32-target.h"
6edf0760 3918
47b0e7ad 3919#undef ELF_MAXPAGESIZE
6edf0760
NC
3920#define ELF_MAXPAGESIZE 0x1000
3921
47b0e7ad 3922#undef TARGET_BIG_SYM
6d00b590 3923#define TARGET_BIG_SYM m32r_elf32_linux_vec
47b0e7ad 3924#undef TARGET_BIG_NAME
6edf0760 3925#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 3926#undef TARGET_LITTLE_SYM
6d00b590 3927#define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
47b0e7ad 3928#undef TARGET_LITTLE_NAME
6edf0760 3929#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 3930#undef elf32_bed
6edf0760
NC
3931#define elf32_bed elf32_m32r_lin_bed
3932
3933#include "elf32-target.h"
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