* frags.h: Remove ANSI_PROTOTYPES conditional code.
[deliverable/binutils-gdb.git] / bfd / elf32-m32r.c
CommitLineData
252b5132 1/* M32R-specific support for 32-bit ELF.
3eb128b2 2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
7898deda 3 Free Software Foundation, Inc.
252b5132 4
88845958 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
88845958
NC
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
252b5132 11
88845958
NC
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
88845958
NC
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
3e110533 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132
RH
20
21#include "bfd.h"
22#include "sysdep.h"
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
47b0e7ad
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
NC
476 0, /* rightshift */
477 2, /* size (0 = byte, 1 = short, 2 = long) */
478 32, /* bitsize */
479 FALSE, /* pc_relative */
480 0, /* bitpos */
481 complain_overflow_bitfield, /* 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
47b0e7ad
NC
880 EMPTY_HOWTO (45),
881 EMPTY_HOWTO (46),
882 EMPTY_HOWTO (47),
252b5132 883
47b0e7ad
NC
884 /* Like R_M32R_24, but referring to the GOT table entry for
885 the symbol. */
886 HOWTO (R_M32R_GOT24, /* type */
887 0, /* rightshift */
888 2, /* size (0 = byte, 1 = short, 2 = long) */
889 24, /* bitsize */
890 FALSE, /* pc_relative */
891 0, /* bitpos */
892 complain_overflow_unsigned, /* complain_on_overflow */
893 bfd_elf_generic_reloc, /* special_function */
894 "R_M32R_GOT24", /* name */
895 FALSE, /* partial_inplace */
896 0xffffff, /* src_mask */
897 0xffffff, /* dst_mask */
898 FALSE), /* pcrel_offset */
8b125cde 899
47b0e7ad
NC
900 /* Like R_M32R_PCREL, but referring to the procedure linkage table
901 entry for the symbol. */
902 HOWTO (R_M32R_26_PLTREL, /* type */
903 2, /* rightshift */
904 2, /* size (0 = byte, 1 = short, 2 = long) */
905 24, /* bitsize */
906 TRUE, /* pc_relative */
907 0, /* bitpos */
908 complain_overflow_signed, /* complain_on_overflow */
909 bfd_elf_generic_reloc, /* special_function */
910 "R_M32R_26_PLTREL", /* name */
911 FALSE, /* partial_inplace */
912 0xffffff, /* src_mask */
913 0xffffff, /* dst_mask */
914 TRUE), /* pcrel_offset */
8b125cde 915
47b0e7ad
NC
916 /* This is used only by the dynamic linker. The symbol should exist
917 both in the object being run and in some shared library. The
918 dynamic linker copies the data addressed by the symbol from the
919 shared library into the object, because the object being
920 run has to have the data at some particular address. */
921 HOWTO (R_M32R_COPY, /* type */
922 0, /* rightshift */
923 2, /* size (0 = byte, 1 = short, 2 = long) */
924 32, /* bitsize */
925 FALSE, /* pc_relative */
926 0, /* bitpos */
927 complain_overflow_bitfield, /* complain_on_overflow */
928 bfd_elf_generic_reloc, /* special_function */
929 "R_M32R_COPY", /* name */
930 FALSE, /* partial_inplace */
931 0xffffffff, /* src_mask */
932 0xffffffff, /* dst_mask */
933 FALSE), /* pcrel_offset */
8b125cde 934
47b0e7ad
NC
935 /* Like R_M32R_24, but used when setting global offset table
936 entries. */
937 HOWTO (R_M32R_GLOB_DAT, /* type */
938 0, /* rightshift */
939 2, /* size (0 = byte, 1 = short, 2 = long) */
940 32, /* bitsize */
941 FALSE, /* pc_relative */
942 0, /* bitpos */
943 complain_overflow_bitfield, /* complain_on_overflow */
944 bfd_elf_generic_reloc, /* special_function */
945 "R_M32R_GLOB_DAT", /* name */
946 FALSE, /* partial_inplace */
947 0xffffffff, /* src_mask */
948 0xffffffff, /* dst_mask */
949 FALSE), /* pcrel_offset */
8b125cde 950
47b0e7ad
NC
951 /* Marks a procedure linkage table entry for a symbol. */
952 HOWTO (R_M32R_JMP_SLOT, /* type */
953 0, /* rightshift */
954 2, /* size (0 = byte, 1 = short, 2 = long) */
955 32, /* bitsize */
956 FALSE, /* pc_relative */
957 0, /* bitpos */
958 complain_overflow_bitfield, /* complain_on_overflow */
959 bfd_elf_generic_reloc, /* special_function */
960 "R_M32R_JMP_SLOT", /* name */
961 FALSE, /* partial_inplace */
962 0xffffffff, /* src_mask */
963 0xffffffff, /* dst_mask */
964 FALSE), /* pcrel_offset */
4c72e23a 965
47b0e7ad
NC
966 /* Used only by the dynamic linker. When the object is run, this
967 longword is set to the load address of the object, plus the
968 addend. */
969 HOWTO (R_M32R_RELATIVE, /* type */
970 0, /* rightshift */
971 2, /* size (0 = byte, 1 = short, 2 = long) */
972 32, /* bitsize */
973 FALSE, /* pc_relative */
974 0, /* bitpos */
975 complain_overflow_bitfield, /* complain_on_overflow */
976 bfd_elf_generic_reloc, /* special_function */
977 "R_M32R_RELATIVE", /* name */
978 FALSE, /* partial_inplace */
979 0xffffffff, /* src_mask */
980 0xffffffff, /* dst_mask */
981 FALSE), /* pcrel_offset */
4c72e23a 982
47b0e7ad
NC
983 HOWTO (R_M32R_GOTOFF, /* type */
984 0, /* rightshift */
985 2, /* size (0 = byte, 1 = short, 2 = long) */
986 24, /* 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_GOTOFF", /* name */
992 FALSE, /* partial_inplace */
993 0xffffff, /* src_mask */
994 0xffffff, /* dst_mask */
995 FALSE), /* pcrel_offset */
4c72e23a 996
47b0e7ad
NC
997 /* An PC Relative 24-bit relocation used when setting PIC offset
998 table register. */
999 HOWTO (R_M32R_GOTPC24, /* type */
1000 0, /* rightshift */
1001 2, /* size (0 = byte, 1 = short, 2 = long) */
1002 24, /* bitsize */
1003 TRUE, /* pc_relative */
1004 0, /* bitpos */
1005 complain_overflow_unsigned, /* complain_on_overflow */
1006 bfd_elf_generic_reloc, /* special_function */
1007 "R_M32R_GOTPC24", /* name */
1008 FALSE, /* partial_inplace */
1009 0xffffff, /* src_mask */
1010 0xffffff, /* dst_mask */
1011 TRUE), /* pcrel_offset */
4c72e23a 1012
47b0e7ad
NC
1013 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1014 the symbol. */
1015 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1016 16, /* rightshift */
1017 2, /* size (0 = byte, 1 = short, 2 = long) */
1018 16, /* bitsize */
1019 FALSE, /* pc_relative */
1020 0, /* bitpos */
1021 complain_overflow_dont, /* complain_on_overflow */
1022 bfd_elf_generic_reloc, /* special_function */
1023 "R_M32R_GOT16_HI_ULO", /* name */
1024 FALSE, /* partial_inplace */
1025 0x0000ffff, /* src_mask */
1026 0x0000ffff, /* dst_mask */
1027 FALSE), /* pcrel_offset */
4c72e23a 1028
47b0e7ad
NC
1029 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1030 the symbol. */
1031 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1032 16, /* rightshift */
1033 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 16, /* bitsize */
1035 FALSE, /* pc_relative */
1036 0, /* bitpos */
1037 complain_overflow_dont, /* complain_on_overflow */
1038 bfd_elf_generic_reloc, /* special_function */
1039 "R_M32R_GOT16_HI_SLO", /* name */
1040 FALSE, /* partial_inplace */
1041 0x0000ffff, /* src_mask */
1042 0x0000ffff, /* dst_mask */
1043 FALSE), /* pcrel_offset */
8b125cde 1044
47b0e7ad
NC
1045 /* Like R_M32R_LO16, but referring to the GOT table entry for
1046 the symbol. */
1047 HOWTO (R_M32R_GOT16_LO, /* type */
1048 0, /* rightshift */
1049 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 16, /* bitsize */
1051 FALSE, /* pc_relative */
1052 0, /* bitpos */
1053 complain_overflow_dont, /* complain_on_overflow */
1054 bfd_elf_generic_reloc, /* special_function */
1055 "R_M32R_GOT16_LO", /* name */
1056 FALSE, /* partial_inplace */
1057 0x0000ffff, /* src_mask */
1058 0x0000ffff, /* dst_mask */
1059 FALSE), /* pcrel_offset */
4c72e23a 1060
47b0e7ad
NC
1061 /* An PC Relative relocation used when setting PIC offset table register.
1062 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1063 the symbol. */
1064 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1065 16, /* rightshift */
1066 2, /* size (0 = byte, 1 = short, 2 = long) */
1067 16, /* bitsize */
1068 FALSE, /* pc_relative */
1069 0, /* bitpos */
1070 complain_overflow_dont, /* complain_on_overflow */
1071 bfd_elf_generic_reloc, /* special_function */
1072 "R_M32R_GOTPC_HI_ULO", /* name */
1073 FALSE, /* partial_inplace */
1074 0x0000ffff, /* src_mask */
1075 0x0000ffff, /* dst_mask */
1076 TRUE), /* pcrel_offset */
4c72e23a 1077
47b0e7ad
NC
1078 /* An PC Relative relocation used when setting PIC offset table register.
1079 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1080 the symbol. */
1081 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1082 16, /* rightshift */
1083 2, /* size (0 = byte, 1 = short, 2 = long) */
1084 16, /* bitsize */
1085 FALSE, /* pc_relative */
1086 0, /* bitpos */
1087 complain_overflow_dont, /* complain_on_overflow */
1088 bfd_elf_generic_reloc, /* special_function */
1089 "R_M32R_GOTPC_HI_SLO", /* name */
1090 FALSE, /* partial_inplace */
1091 0x0000ffff, /* src_mask */
1092 0x0000ffff, /* dst_mask */
1093 TRUE), /* pcrel_offset */
4c72e23a 1094
47b0e7ad
NC
1095 /* An PC Relative relocation used when setting PIC offset table register.
1096 Like R_M32R_LO16, but referring to the GOT table entry for
1097 the symbol. */
1098 HOWTO (R_M32R_GOTPC_LO, /* type */
1099 0, /* rightshift */
1100 2, /* size (0 = byte, 1 = short, 2 = long) */
1101 16, /* bitsize */
1102 FALSE, /* pc_relative */
1103 0, /* bitpos */
1104 complain_overflow_dont, /* complain_on_overflow */
1105 bfd_elf_generic_reloc, /* special_function */
1106 "R_M32R_GOTPC_LO", /* name */
1107 FALSE, /* partial_inplace */
1108 0x0000ffff, /* src_mask */
1109 0x0000ffff, /* dst_mask */
1110 TRUE), /* pcrel_offset */
252b5132 1111
47b0e7ad
NC
1112 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1113 16, /* 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_GOTOFF_HI_ULO",/* name */
1121 FALSE, /* partial_inplace */
1122 0x0000ffff, /* src_mask */
1123 0x0000ffff, /* dst_mask */
1124 FALSE), /* pcrel_offset */
252b5132 1125
47b0e7ad
NC
1126 HOWTO (R_M32R_GOTOFF_HI_SLO, /* 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_SLO",/* 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_LO, /* type */
1141 0, /* 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_LO", /* name */
1149 FALSE, /* partial_inplace */
1150 0x0000ffff, /* src_mask */
1151 0x0000ffff, /* dst_mask */
1152 FALSE), /* pcrel_offset */
1153};
252b5132 1154
252b5132
RH
1155/* Map BFD reloc types to M32R ELF reloc types. */
1156
1157struct m32r_reloc_map
1158{
1159 bfd_reloc_code_real_type bfd_reloc_val;
1160 unsigned char elf_reloc_val;
1161};
1162
d5b2f13b 1163#ifdef USE_M32R_OLD_RELOC
6edf0760 1164static const struct m32r_reloc_map m32r_reloc_map_old[] =
252b5132
RH
1165{
1166 { BFD_RELOC_NONE, R_M32R_NONE },
1167 { BFD_RELOC_16, R_M32R_16 },
1168 { BFD_RELOC_32, R_M32R_32 },
1169 { BFD_RELOC_M32R_24, R_M32R_24 },
1170 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1171 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1172 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1173 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1174 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1175 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1176 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1177 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1178 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1179};
d5b2f13b 1180#else
6edf0760
NC
1181static const struct m32r_reloc_map m32r_reloc_map[] =
1182{
1183 { BFD_RELOC_NONE, R_M32R_NONE },
1184 { BFD_RELOC_16, R_M32R_16_RELA },
1185 { BFD_RELOC_32, R_M32R_32_RELA },
1186 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1187 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1188 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1189 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1190 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1191 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1192 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1193 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1194 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1195 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
41978308 1196
6edf0760
NC
1197 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1198 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1199 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1200 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1201 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1202 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1203 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1204 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1205 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1206 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1207 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1208 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1209 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1210 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
097f809a
NC
1211 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1212 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1213 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
6edf0760 1214};
d5b2f13b 1215#endif
6edf0760 1216
252b5132 1217static reloc_howto_type *
47b0e7ad
NC
1218bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1219 bfd_reloc_code_real_type code)
252b5132
RH
1220{
1221 unsigned int i;
1222
6edf0760
NC
1223#ifdef USE_M32R_OLD_RELOC
1224 for (i = 0;
1225 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1226 i++)
47b0e7ad
NC
1227 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1228 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1229
6edf0760
NC
1230#else /* ! USE_M32R_OLD_RELOC */
1231
252b5132
RH
1232 for (i = 0;
1233 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1234 i++)
47b0e7ad
NC
1235 if (m32r_reloc_map[i].bfd_reloc_val == code)
1236 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
6edf0760 1237#endif
252b5132
RH
1238
1239 return NULL;
1240}
1241
1242/* Set the howto pointer for an M32R ELF reloc. */
1243
1244static void
47b0e7ad
NC
1245m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1246 arelent *cache_ptr,
1247 Elf_Internal_Rela *dst)
252b5132
RH
1248{
1249 unsigned int r_type;
1250
1251 r_type = ELF32_R_TYPE (dst->r_info);
f12123c0 1252 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY);
252b5132
RH
1253 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1254}
6edf0760
NC
1255
1256static void
47b0e7ad
NC
1257m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1258 arelent *cache_ptr,
1259 Elf_Internal_Rela *dst)
6edf0760
NC
1260{
1261 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1262 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1263 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1264 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1265}
1266
252b5132
RH
1267\f
1268/* Given a BFD section, try to locate the corresponding ELF section
1269 index. */
1270
47b0e7ad
NC
1271static bfd_boolean
1272_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1273 asection *sec,
1274 int *retval)
252b5132
RH
1275{
1276 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1277 {
1278 *retval = SHN_M32R_SCOMMON;
b34976b6 1279 return TRUE;
252b5132 1280 }
b34976b6 1281 return FALSE;
252b5132
RH
1282}
1283
1284/* M32R ELF uses two common sections. One is the usual one, and the other
1285 is for small objects. All the small objects are kept together, and then
1286 referenced via one register, which yields faster assembler code. It is
1287 up to the compiler to emit an instruction to load the register with
1288 _SDA_BASE. This is what we use for the small common section. This
1289 approach is copied from elf32-mips.c. */
1290static asection m32r_elf_scom_section;
1291static asymbol m32r_elf_scom_symbol;
1292static asymbol *m32r_elf_scom_symbol_ptr;
1293
1294/* Handle the special M32R section numbers that a symbol may use. */
1295
47b0e7ad
NC
1296static void
1297_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1298{
47b0e7ad 1299 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH
1300
1301 switch (elfsym->internal_elf_sym.st_shndx)
1302 {
1303 case SHN_M32R_SCOMMON:
1304 if (m32r_elf_scom_section.name == NULL)
1305 {
1306 /* Initialize the small common section. */
1307 m32r_elf_scom_section.name = ".scommon";
1308 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1309 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1310 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1311 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1312 m32r_elf_scom_symbol.name = ".scommon";
1313 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1314 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1315 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1316 }
1317 asym->section = &m32r_elf_scom_section;
1318 asym->value = elfsym->internal_elf_sym.st_size;
1319 break;
1320 }
1321}
1322
1323/* Hook called by the linker routine which adds symbols from an object
1324 file. We must handle the special M32R section numbers here.
1325 We also keep watching for whether we need to create the sdata special
1326 linker sections. */
1327
b34976b6 1328static bfd_boolean
47b0e7ad
NC
1329m32r_elf_add_symbol_hook (bfd *abfd,
1330 struct bfd_link_info *info,
1331 Elf_Internal_Sym *sym,
1332 const char **namep,
1333 flagword *flagsp ATTRIBUTE_UNUSED,
1334 asection **secp,
1335 bfd_vma *valp)
252b5132 1336{
1049f94e 1337 if (! info->relocatable
252b5132 1338 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1339 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1340 && is_elf_hash_table (info->hash))
252b5132
RH
1341 {
1342 /* This is simpler than using _bfd_elf_create_linker_section
1343 (our needs are simpler than ppc's needs). Also
1344 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1345 section already exists a new one is created that follows it which
1346 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1347 struct elf_link_hash_entry *h;
14a793b2 1348 struct bfd_link_hash_entry *bh;
252b5132
RH
1349 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1350
6edf0760 1351 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC
1352 if (s == NULL)
1353 {
1354 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1355 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1356
3496cb2a
L
1357 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1358 flags);
6edf0760
NC
1359 if (s == NULL)
1360 return FALSE;
6edf0760
NC
1361 bfd_set_section_alignment (abfd, s, 2);
1362 }
1363
1364 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1365 FALSE, FALSE, FALSE);
1366
1367 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1368 && !(_bfd_generic_link_add_one_symbol (info,
1369 abfd,
1370 "_SDA_BASE_",
1371 BSF_GLOBAL,
1372 s,
1373 (bfd_vma) 32768,
47b0e7ad 1374 NULL,
6edf0760
NC
1375 FALSE,
1376 get_elf_backend_data (abfd)->collect,
1377 &bh)))
1378 return FALSE;
1379 h = (struct elf_link_hash_entry *) bh;
1380 h->type = STT_OBJECT;
1381 }
1382
1383 switch (sym->st_shndx)
1384 {
1385 case SHN_M32R_SCOMMON:
1386 *secp = bfd_make_section_old_way (abfd, ".scommon");
1387 (*secp)->flags |= SEC_IS_COMMON;
1388 *valp = sym->st_size;
1389 break;
1390 }
1391
1392 return TRUE;
1393}
1394
1395/* We have to figure out the SDA_BASE value, so that we can adjust the
1396 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1397 BFD. If we can't find it, we're stuck. We cache it in the ELF
1398 target data. We don't need to adjust the symbol value for an
1399 external symbol if we are producing relocatable output. */
1400
1401static bfd_reloc_status_type
47b0e7ad
NC
1402m32r_elf_final_sda_base (bfd *output_bfd,
1403 struct bfd_link_info *info,
1404 const char **error_message,
1405 bfd_vma *psb)
6edf0760
NC
1406{
1407 if (elf_gp (output_bfd) == 0)
1408 {
1409 struct bfd_link_hash_entry *h;
1410
1411 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1412 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC
1413 elf_gp (output_bfd) = (h->u.def.value
1414 + h->u.def.section->output_section->vma
1415 + h->u.def.section->output_offset);
1416 else
1417 {
1418 /* Only get the error once. */
1419 *psb = elf_gp (output_bfd) = 4;
1420 *error_message =
1421 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1422 return bfd_reloc_dangerous;
1423 }
1424 }
1425 *psb = elf_gp (output_bfd);
1426 return bfd_reloc_ok;
1427}
1428\f
1429/* Return size of a PLT entry. */
1430#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1431
1432/* The m32r linker needs to keep track of the number of relocs that it
1433 decides to copy in check_relocs for each symbol. This is so that
1434 it can discard PC relative relocs if it doesn't need them when
1435 linking with -Bsymbolic. We store the information in a field
1436 extending the regular ELF linker hash table. */
1437
1438/* This structure keeps track of the number of PC relative relocs we
1439 have copied for a given symbol. */
1440
1441struct elf_m32r_pcrel_relocs_copied
1442{
1443 /* Next section. */
1444 struct elf_m32r_pcrel_relocs_copied *next;
1445 /* A section in dynobj. */
1446 asection *section;
1447 /* Number of relocs copied in this section. */
1448 bfd_size_type count;
1449};
1450
1451/* The sh linker needs to keep track of the number of relocs that it
1452 decides to copy as dynamic relocs in check_relocs for each symbol.
1453 This is so that it can later discard them if they are found to be
1454 unnecessary. We store the information in a field extending the
1455 regular ELF linker hash table. */
1456
1457struct elf_m32r_dyn_relocs
1458{
1459 struct elf_m32r_dyn_relocs *next;
1460
1461 /* The input section of the reloc. */
1462 asection *sec;
1463
1464 /* Total number of relocs copied for the input section. */
1465 bfd_size_type count;
1466
1467 /* Number of pc-relative relocs copied for the input section. */
1468 bfd_size_type pc_count;
1469};
1470
1471
1472/* m32r ELF linker hash entry. */
1473
1474struct elf_m32r_link_hash_entry
1475{
1476 struct elf_link_hash_entry root;
1477
1478 /* Track dynamic relocs copied for this symbol. */
1479 struct elf_m32r_dyn_relocs *dyn_relocs;
6edf0760
NC
1480};
1481
1482/* m32r ELF linker hash table. */
1483
1484struct elf_m32r_link_hash_table
1485{
1486 struct elf_link_hash_table root;
1487
1488 /* Short-cuts to get to dynamic linker sections. */
1489 asection *sgot;
1490 asection *sgotplt;
1491 asection *srelgot;
1492 asection *splt;
1493 asection *srelplt;
1494 asection *sdynbss;
1495 asection *srelbss;
1496
1497 /* Small local sym to section mapping cache. */
1498 struct sym_sec_cache sym_sec;
1499};
1500
1501/* Traverse an m32r ELF linker hash table. */
1502
1503#define m32r_elf_link_hash_traverse(table, func, info) \
1504 (elf_link_hash_traverse \
1505 (&(table)->root, \
47b0e7ad 1506 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC
1507 (info)))
1508
1509/* Get the m32r ELF linker hash table from a link_info structure. */
1510
1511
1512#define m32r_elf_hash_table(p) \
1513 ((struct elf_m32r_link_hash_table *) ((p)->hash))
1514
1515/* Create an entry in an m32r ELF linker hash table. */
6edf0760
NC
1516
1517static struct bfd_hash_entry *
47b0e7ad
NC
1518m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1519 struct bfd_hash_table *table,
1520 const char *string)
6edf0760
NC
1521{
1522 struct elf_m32r_link_hash_entry *ret =
1523 (struct elf_m32r_link_hash_entry *) entry;
41978308 1524
6edf0760
NC
1525 /* Allocate the structure if it has not already been allocated by a
1526 subclass. */
47b0e7ad
NC
1527 if (ret == NULL)
1528 ret = bfd_hash_allocate (table,
1529 sizeof (struct elf_m32r_link_hash_entry));
1530 if (ret == NULL)
1531 return NULL;
41978308 1532
6edf0760
NC
1533 /* Call the allocation method of the superclass. */
1534 ret = ((struct elf_m32r_link_hash_entry *)
1535 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1536 table, string));
47b0e7ad 1537 if (ret != NULL)
6edf0760
NC
1538 {
1539 struct elf_m32r_link_hash_entry *eh;
41978308 1540
6edf0760
NC
1541 eh = (struct elf_m32r_link_hash_entry *) ret;
1542 eh->dyn_relocs = NULL;
6edf0760 1543 }
41978308 1544
6edf0760
NC
1545 return (struct bfd_hash_entry *) ret;
1546}
1547
1548/* Create an m32r ELF linker hash table. */
6edf0760
NC
1549
1550static struct bfd_link_hash_table *
47b0e7ad 1551m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760
NC
1552{
1553 struct elf_m32r_link_hash_table *ret;
1554 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
41978308 1555
47b0e7ad
NC
1556 ret = bfd_malloc (amt);
1557 if (ret == NULL)
6edf0760 1558 return NULL;
41978308 1559
6edf0760
NC
1560 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
1561 m32r_elf_link_hash_newfunc))
1562 {
1563 free (ret);
1564 return NULL;
1565 }
41978308 1566
6edf0760
NC
1567 ret->sgot = NULL;
1568 ret->sgotplt = NULL;
1569 ret->srelgot = NULL;
1570 ret->splt = NULL;
1571 ret->srelplt = NULL;
1572 ret->sdynbss = NULL;
1573 ret->srelbss = NULL;
1574 ret->sym_sec.abfd = NULL;
41978308 1575
6edf0760
NC
1576 return &ret->root.root;
1577}
1578
1579/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1580 shortcuts to them in our hash table. */
6edf0760
NC
1581
1582static bfd_boolean
47b0e7ad 1583create_got_section (bfd *dynobj, struct bfd_link_info *info)
6edf0760
NC
1584{
1585 struct elf_m32r_link_hash_table *htab;
1586
1587 if (! _bfd_elf_create_got_section (dynobj, info))
1588 return FALSE;
1589
1590 htab = m32r_elf_hash_table (info);
1591 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1592 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1593 if (! htab->sgot || ! htab->sgotplt)
1594 abort ();
1595
3496cb2a
L
1596 htab->srelgot = bfd_make_section_with_flags (dynobj, ".rela.got",
1597 (SEC_ALLOC
1598 | SEC_LOAD
1599 | SEC_HAS_CONTENTS
1600 | SEC_IN_MEMORY
1601 | SEC_LINKER_CREATED
1602 | SEC_READONLY));
6edf0760 1603 if (htab->srelgot == NULL
6edf0760
NC
1604 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
1605 return FALSE;
1606
1607 return TRUE;
1608}
1609
1610/* Create dynamic sections when linking against a dynamic object. */
1611
1612static bfd_boolean
47b0e7ad 1613m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760
NC
1614{
1615 struct elf_m32r_link_hash_table *htab;
1616 flagword flags, pltflags;
47b0e7ad 1617 asection *s;
6edf0760
NC
1618 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1619 int ptralign = 2; /* 32bit */
1620
1621 htab = m32r_elf_hash_table (info);
1622
1623 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1624 .rel[a].bss sections. */
6edf0760
NC
1625 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1626 | SEC_LINKER_CREATED);
1627
1628 pltflags = flags;
1629 pltflags |= SEC_CODE;
1630 if (bed->plt_not_loaded)
1631 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1632 if (bed->plt_readonly)
1633 pltflags |= SEC_READONLY;
1634
3496cb2a 1635 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
6edf0760
NC
1636 htab->splt = s;
1637 if (s == NULL
6edf0760
NC
1638 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1639 return FALSE;
1640
1641 if (bed->want_plt_sym)
1642 {
1643 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1644 .plt section. */
41978308
AM
1645 struct bfd_link_hash_entry *bh = NULL;
1646 struct elf_link_hash_entry *h;
47b0e7ad 1647
6edf0760
NC
1648 if (! (_bfd_generic_link_add_one_symbol
1649 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
47b0e7ad 1650 (bfd_vma) 0, NULL, FALSE,
41978308 1651 get_elf_backend_data (abfd)->collect, &bh)))
6edf0760 1652 return FALSE;
41978308 1653 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1654 h->def_regular = 1;
6edf0760
NC
1655 h->type = STT_OBJECT;
1656
1657 if (info->shared
c152c796 1658 && ! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
1659 return FALSE;
1660 }
1661
3496cb2a
L
1662 s = bfd_make_section_with_flags (abfd,
1663 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
1664 flags | SEC_READONLY);
6edf0760
NC
1665 htab->srelplt = s;
1666 if (s == NULL
6edf0760
NC
1667 || ! bfd_set_section_alignment (abfd, s, ptralign))
1668 return FALSE;
1669
1670 if (htab->sgot == NULL
1671 && ! create_got_section (abfd, info))
1672 return FALSE;
1673
1674 {
1675 const char *secname;
1676 char *relname;
1677 flagword secflags;
1678 asection *sec;
1679
1680 for (sec = abfd->sections; sec; sec = sec->next)
1681 {
1682 secflags = bfd_get_section_flags (abfd, sec);
1683 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
1684 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
1685 continue;
1686 secname = bfd_get_section_name (abfd, sec);
47b0e7ad 1687 relname = bfd_malloc ((bfd_size_type) strlen (secname) + 6);
6edf0760
NC
1688 strcpy (relname, ".rela");
1689 strcat (relname, secname);
1690 if (bfd_get_section_by_name (abfd, secname))
1691 continue;
3496cb2a
L
1692 s = bfd_make_section_with_flags (abfd, relname,
1693 flags | SEC_READONLY);
6edf0760 1694 if (s == NULL
6edf0760
NC
1695 || ! bfd_set_section_alignment (abfd, s, ptralign))
1696 return FALSE;
1697 }
1698 }
1699
1700 if (bed->want_dynbss)
1701 {
1702 /* The .dynbss section is a place to put symbols which are defined
1703 by dynamic objects, are referenced by regular objects, and are
1704 not functions. We must allocate space for them in the process
1705 image and use a R_*_COPY reloc to tell the dynamic linker to
1706 initialize them at run time. The linker script puts the .dynbss
1707 section into the .bss section of the final image. */
3496cb2a
L
1708 s = bfd_make_section_with_flags (abfd, ".dynbss",
1709 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1710 htab->sdynbss = s;
3496cb2a 1711 if (s == NULL)
6edf0760
NC
1712 return FALSE;
1713 /* The .rel[a].bss section holds copy relocs. This section is not
1714 normally needed. We need to create it here, though, so that the
1715 linker will map it to an output section. We can't just create it
1716 only if we need it, because we will not know whether we need it
1717 until we have seen all the input files, and the first time the
1718 main linker code calls BFD after examining all the input files
1719 (size_dynamic_sections) the input sections have already been
1720 mapped to the output sections. If the section turns out not to
1721 be needed, we can discard it later. We will never need this
1722 section when generating a shared object, since they do not use
1723 copy relocs. */
1724 if (! info->shared)
1725 {
3496cb2a
L
1726 s = bfd_make_section_with_flags (abfd,
1727 (bed->default_use_rela_p
1728 ? ".rela.bss" : ".rel.bss"),
1729 flags | SEC_READONLY);
6edf0760
NC
1730 htab->srelbss = s;
1731 if (s == NULL
6edf0760
NC
1732 || ! bfd_set_section_alignment (abfd, s, ptralign))
1733 return FALSE;
1734 }
1735 }
1736
1737 return TRUE;
1738}
1739
1740/* Copy the extra info we tack onto an elf_link_hash_entry. */
41978308 1741
6edf0760
NC
1742static void
1743m32r_elf_copy_indirect_symbol (const struct elf_backend_data *bed,
1744 struct elf_link_hash_entry *dir,
1745 struct elf_link_hash_entry *ind)
1746{
47b0e7ad
NC
1747 struct elf_m32r_link_hash_entry * edir;
1748 struct elf_m32r_link_hash_entry * eind;
41978308 1749
6edf0760
NC
1750 edir = (struct elf_m32r_link_hash_entry *) dir;
1751 eind = (struct elf_m32r_link_hash_entry *) ind;
41978308 1752
6edf0760
NC
1753 if (eind->dyn_relocs != NULL)
1754 {
1755 if (edir->dyn_relocs != NULL)
1756 {
1757 struct elf_m32r_dyn_relocs **pp;
1758 struct elf_m32r_dyn_relocs *p;
41978308 1759
6edf0760
NC
1760 if (ind->root.type == bfd_link_hash_indirect)
1761 abort ();
41978308 1762
6edf0760
NC
1763 /* Add reloc counts against the weak sym to the strong sym
1764 list. Merge any entries against the same section. */
47b0e7ad 1765 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
1766 {
1767 struct elf_m32r_dyn_relocs *q;
41978308 1768
6edf0760
NC
1769 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1770 if (q->sec == p->sec)
1771 {
1772 q->pc_count += p->pc_count;
1773 q->count += p->count;
1774 *pp = p->next;
1775 break;
1776 }
1777 if (q == NULL)
1778 pp = &p->next;
1779 }
1780 *pp = edir->dyn_relocs;
1781 }
41978308 1782
6edf0760
NC
1783 edir->dyn_relocs = eind->dyn_relocs;
1784 eind->dyn_relocs = NULL;
1785 }
41978308 1786
6edf0760
NC
1787 _bfd_elf_link_hash_copy_indirect (bed, dir, ind);
1788}
1789
1790\f
1791/* Adjust a symbol defined by a dynamic object and referenced by a
1792 regular object. The current definition is in some section of the
1793 dynamic object, but we're not including those sections. We have to
1794 change the definition to something the rest of the link can
1795 understand. */
41978308 1796
6edf0760 1797static bfd_boolean
47b0e7ad
NC
1798m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1799 struct elf_link_hash_entry *h)
6edf0760
NC
1800{
1801 struct elf_m32r_link_hash_table *htab;
1802 struct elf_m32r_link_hash_entry *eh;
1803 struct elf_m32r_dyn_relocs *p;
1804 bfd *dynobj;
1805 asection *s;
1806 unsigned int power_of_two;
1807
1808#ifdef DEBUG_PIC
47b0e7ad 1809 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1810#endif
41978308 1811
6edf0760 1812 dynobj = elf_hash_table (info)->dynobj;
41978308 1813
6edf0760
NC
1814 /* Make sure we know what is going on here. */
1815 BFD_ASSERT (dynobj != NULL
f5385ebf 1816 && (h->needs_plt
f6e332e6 1817 || h->u.weakdef != NULL
f5385ebf
AM
1818 || (h->def_dynamic
1819 && h->ref_regular
1820 && !h->def_regular)));
6edf0760 1821
6edf0760
NC
1822 /* If this is a function, put it in the procedure linkage table. We
1823 will fill in the contents of the procedure linkage table later,
1824 when we know the address of the .got section. */
1825 if (h->type == STT_FUNC
f5385ebf 1826 || h->needs_plt)
6edf0760
NC
1827 {
1828 if (! info->shared
f5385ebf
AM
1829 && !h->def_dynamic
1830 && !h->ref_dynamic
6edf0760
NC
1831 && h->root.type != bfd_link_hash_undefweak
1832 && h->root.type != bfd_link_hash_undefined)
1833 {
1834 /* This case can occur if we saw a PLT reloc in an input
1835 file, but the symbol was never referred to by a dynamic
1836 object. In such a case, we don't actually need to build
1837 a procedure linkage table, and we can just do a PCREL
1838 reloc instead. */
1839 h->plt.offset = (bfd_vma) -1;
f5385ebf 1840 h->needs_plt = 0;
6edf0760
NC
1841 }
1842
1843 return TRUE;
1844 }
1845 else
1846 h->plt.offset = (bfd_vma) -1;
41978308 1847
6edf0760
NC
1848 /* If this is a weak symbol, and there is a real definition, the
1849 processor independent code will have arranged for us to see the
1850 real definition first, and we can just use the same value. */
f6e332e6 1851 if (h->u.weakdef != NULL)
6edf0760 1852 {
f6e332e6
AM
1853 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1854 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1855 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1856 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6edf0760
NC
1857 return TRUE;
1858 }
41978308 1859
6edf0760
NC
1860 /* This is a reference to a symbol defined by a dynamic object which
1861 is not a function. */
41978308 1862
6edf0760
NC
1863 /* If we are creating a shared library, we must presume that the
1864 only references to the symbol are via the global offset table.
1865 For such cases we need not do anything here; the relocations will
1866 be handled correctly by relocate_section. */
1867 if (info->shared)
1868 return TRUE;
41978308 1869
6edf0760
NC
1870 /* If there are no references to this symbol that do not use the
1871 GOT, we don't need to generate a copy reloc. */
f5385ebf 1872 if (!h->non_got_ref)
6edf0760
NC
1873 return TRUE;
1874
1875 /* If -z nocopyreloc was given, we won't generate them either. */
1876 if (info->nocopyreloc)
1877 {
f5385ebf 1878 h->non_got_ref = 0;
6edf0760
NC
1879 return TRUE;
1880 }
1881
1882 eh = (struct elf_m32r_link_hash_entry *) h;
1883 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1884 {
1885 s = p->sec->output_section;
1886 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1887 break;
1888 }
1889
1890 /* If we didn't find any dynamic relocs in sections which needs the
1891 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1892 the copy reloc. */
1893 if (p == NULL)
1894 {
f5385ebf 1895 h->non_got_ref = 0;
6edf0760
NC
1896 return TRUE;
1897 }
1898
1899 /* We must allocate the symbol in our .dynbss section, which will
1900 become part of the .bss section of the executable. There will be
1901 an entry for this symbol in the .dynsym section. The dynamic
1902 object will contain position independent code, so all references
1903 from the dynamic object to this symbol will go through the global
1904 offset table. The dynamic linker will use the .dynsym entry to
1905 determine the address it must put in the global offset table, so
1906 both the dynamic object and the regular object will refer to the
1907 same memory location for the variable. */
41978308 1908
6edf0760
NC
1909 htab = m32r_elf_hash_table (info);
1910 s = htab->sdynbss;
1911 BFD_ASSERT (s != NULL);
41978308 1912
6edf0760
NC
1913 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1914 to copy the initial value out of the dynamic object and into the
1915 runtime process image. We need to remember the offset into the
1916 .rela.bss section we are going to use. */
1917 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1918 {
1919 asection *srel;
41978308 1920
6edf0760
NC
1921 srel = htab->srelbss;
1922 BFD_ASSERT (srel != NULL);
eea6121a 1923 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1924 h->needs_copy = 1;
6edf0760 1925 }
41978308 1926
6edf0760
NC
1927 /* We need to figure out the alignment required for this symbol. I
1928 have no idea how ELF linkers handle this. */
1929 power_of_two = bfd_log2 (h->size);
1930 if (power_of_two > 3)
1931 power_of_two = 3;
41978308 1932
6edf0760 1933 /* Apply the required alignment. */
eea6121a 1934 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
6edf0760
NC
1935 if (power_of_two > bfd_get_section_alignment (dynobj, s))
1936 {
1937 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
1938 return FALSE;
1939 }
41978308 1940
6edf0760
NC
1941 /* Define the symbol as being at this point in the section. */
1942 h->root.u.def.section = s;
eea6121a 1943 h->root.u.def.value = s->size;
41978308 1944
6edf0760 1945 /* Increment the section size to make room for the symbol. */
eea6121a 1946 s->size += h->size;
41978308 1947
6edf0760
NC
1948 return TRUE;
1949}
1950
6edf0760
NC
1951/* Allocate space in .plt, .got and associated reloc sections for
1952 dynamic relocs. */
41978308 1953
6edf0760 1954static bfd_boolean
47b0e7ad 1955allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC
1956{
1957 struct bfd_link_info *info;
1958 struct elf_m32r_link_hash_table *htab;
1959 struct elf_m32r_link_hash_entry *eh;
1960 struct elf_m32r_dyn_relocs *p;
41978308 1961
6edf0760
NC
1962 if (h->root.type == bfd_link_hash_indirect)
1963 return TRUE;
41978308 1964
6edf0760
NC
1965 if (h->root.type == bfd_link_hash_warning)
1966 /* When warning symbols are created, they **replace** the "real"
1967 entry in the hash table, thus we never get to see the real
1968 symbol in a hash traversal. So look at it now. */
1969 h = (struct elf_link_hash_entry *) h->root.u.i.link;
41978308 1970
6edf0760
NC
1971 info = (struct bfd_link_info *) inf;
1972 htab = m32r_elf_hash_table (info);
41978308 1973
6edf0760 1974 eh = (struct elf_m32r_link_hash_entry *) h;
41978308 1975
6edf0760
NC
1976 if (htab->root.dynamic_sections_created
1977 && h->plt.refcount > 0)
1978 {
1979 /* Make sure this symbol is output as a dynamic symbol.
1980 Undefined weak syms won't yet be marked as dynamic. */
1981 if (h->dynindx == -1
f5385ebf 1982 && !h->forced_local)
6edf0760 1983 {
c152c796 1984 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
1985 return FALSE;
1986 }
41978308 1987
c152c796 1988 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
6edf0760
NC
1989 {
1990 asection *s = htab->splt;
41978308 1991
6edf0760
NC
1992 /* If this is the first .plt entry, make room for the special
1993 first entry. */
eea6121a
AM
1994 if (s->size == 0)
1995 s->size += PLT_ENTRY_SIZE;
41978308 1996
eea6121a 1997 h->plt.offset = s->size;
41978308 1998
6edf0760
NC
1999 /* If this symbol is not defined in a regular file, and we are
2000 not generating a shared library, then set the symbol to this
2001 location in the .plt. This is required to make function
2002 pointers compare as equal between the normal executable and
2003 the shared library. */
2004 if (! info->shared
f5385ebf 2005 && !h->def_regular)
6edf0760
NC
2006 {
2007 h->root.u.def.section = s;
2008 h->root.u.def.value = h->plt.offset;
2009 }
41978308 2010
6edf0760 2011 /* Make room for this entry. */
eea6121a 2012 s->size += PLT_ENTRY_SIZE;
41978308 2013
6edf0760
NC
2014 /* We also need to make an entry in the .got.plt section, which
2015 will be placed in the .got section by the linker script. */
eea6121a 2016 htab->sgotplt->size += 4;
41978308 2017
6edf0760 2018 /* We also need to make an entry in the .rel.plt section. */
eea6121a 2019 htab->srelplt->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2020 }
2021 else
2022 {
2023 h->plt.offset = (bfd_vma) -1;
f5385ebf 2024 h->needs_plt = 0;
6edf0760
NC
2025 }
2026 }
2027 else
2028 {
2029 h->plt.offset = (bfd_vma) -1;
f5385ebf 2030 h->needs_plt = 0;
6edf0760 2031 }
41978308 2032
6edf0760
NC
2033 if (h->got.refcount > 0)
2034 {
2035 asection *s;
2036 bfd_boolean dyn;
41978308 2037
6edf0760
NC
2038 /* Make sure this symbol is output as a dynamic symbol.
2039 Undefined weak syms won't yet be marked as dynamic. */
2040 if (h->dynindx == -1
f5385ebf 2041 && !h->forced_local)
6edf0760 2042 {
c152c796 2043 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2044 return FALSE;
2045 }
41978308 2046
6edf0760
NC
2047 s = htab->sgot;
2048
eea6121a
AM
2049 h->got.offset = s->size;
2050 s->size += 4;
6edf0760 2051 dyn = htab->root.dynamic_sections_created;
c152c796 2052 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
eea6121a 2053 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2054 }
2055 else
2056 h->got.offset = (bfd_vma) -1;
41978308 2057
6edf0760
NC
2058 if (eh->dyn_relocs == NULL)
2059 return TRUE;
41978308 2060
6edf0760
NC
2061 /* In the shared -Bsymbolic case, discard space allocated for
2062 dynamic pc-relative relocs against symbols which turn out to be
2063 defined in regular objects. For the normal shared case, discard
2064 space for pc-relative relocs that have become local due to symbol
2065 visibility changes. */
2066
2067 if (info->shared)
2068 {
f5385ebf
AM
2069 if (h->def_regular
2070 && (h->forced_local
6edf0760
NC
2071 || info->symbolic))
2072 {
2073 struct elf_m32r_dyn_relocs **pp;
47b0e7ad
NC
2074
2075 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
2076 {
2077 p->count -= p->pc_count;
2078 p->pc_count = 0;
2079 if (p->count == 0)
2080 *pp = p->next;
2081 else
2082 pp = &p->next;
2083 }
2084 }
2085 }
2086 else
2087 {
2088 /* For the non-shared case, discard space for relocs against
2089 symbols which turn out to need copy relocs or are not
2090 dynamic. */
41978308 2091
f5385ebf
AM
2092 if (!h->non_got_ref
2093 && ((h->def_dynamic
2094 && !h->def_regular)
6edf0760
NC
2095 || (htab->root.dynamic_sections_created
2096 && (h->root.type == bfd_link_hash_undefweak
2097 || h->root.type == bfd_link_hash_undefined))))
2098 {
2099 /* Make sure this symbol is output as a dynamic symbol.
2100 Undefined weak syms won't yet be marked as dynamic. */
2101 if (h->dynindx == -1
f5385ebf 2102 && !h->forced_local)
6edf0760 2103 {
c152c796 2104 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2105 return FALSE;
2106 }
41978308 2107
6edf0760
NC
2108 /* If that succeeded, we know we'll be keeping all the
2109 relocs. */
2110 if (h->dynindx != -1)
2111 goto keep;
2112 }
41978308 2113
6edf0760 2114 eh->dyn_relocs = NULL;
41978308 2115
6edf0760
NC
2116 keep: ;
2117 }
41978308 2118
6edf0760
NC
2119 /* Finally, allocate space. */
2120 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2121 {
2122 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2123 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 2124 }
41978308 2125
6edf0760
NC
2126 return TRUE;
2127}
47b0e7ad 2128
6edf0760 2129/* Find any dynamic relocs that apply to read-only sections. */
41978308 2130
6edf0760 2131static bfd_boolean
47b0e7ad 2132readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC
2133{
2134 struct elf_m32r_link_hash_entry *eh;
2135 struct elf_m32r_dyn_relocs *p;
2136
2137 if (h->root.type == bfd_link_hash_warning)
2138 h = (struct elf_link_hash_entry *) h->root.u.i.link;
252b5132 2139
6edf0760
NC
2140 eh = (struct elf_m32r_link_hash_entry *) h;
2141 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2142 {
2143 asection *s = p->sec->output_section;
252b5132 2144
6edf0760
NC
2145 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2146 {
2147 struct bfd_link_info *info = (struct bfd_link_info *) inf;
252b5132 2148
6edf0760 2149 info->flags |= DF_TEXTREL;
252b5132 2150
6edf0760
NC
2151 /* Not an error, just cut short the traversal. */
2152 return FALSE;
2153 }
252b5132 2154 }
6edf0760
NC
2155 return TRUE;
2156}
252b5132 2157
6edf0760 2158/* Set the sizes of the dynamic sections. */
41978308 2159
6edf0760 2160static bfd_boolean
47b0e7ad
NC
2161m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2162 struct bfd_link_info *info)
6edf0760
NC
2163{
2164 struct elf_m32r_link_hash_table *htab;
2165 bfd *dynobj;
2166 asection *s;
2167 bfd_boolean relocs;
2168 bfd *ibfd;
2169
2170#ifdef DEBUG_PIC
47b0e7ad 2171 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC
2172#endif
2173
2174 htab = m32r_elf_hash_table (info);
2175 dynobj = htab->root.dynobj;
2176 BFD_ASSERT (dynobj != NULL);
2177
2178 if (htab->root.dynamic_sections_created)
252b5132 2179 {
6edf0760 2180 /* Set the contents of the .interp section to the interpreter. */
80447b21 2181 if (info->executable)
6edf0760
NC
2182 {
2183 s = bfd_get_section_by_name (dynobj, ".interp");
2184 BFD_ASSERT (s != NULL);
eea6121a 2185 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC
2186 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2187 }
252b5132
RH
2188 }
2189
6edf0760
NC
2190 /* Set up .got offsets for local syms, and space for local dynamic
2191 relocs. */
2192 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2193 {
2194 bfd_signed_vma *local_got;
2195 bfd_signed_vma *end_local_got;
2196 bfd_size_type locsymcount;
2197 Elf_Internal_Shdr *symtab_hdr;
2198 asection *srel;
252b5132 2199
6edf0760
NC
2200 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2201 continue;
252b5132 2202
6edf0760
NC
2203 for (s = ibfd->sections; s != NULL; s = s->next)
2204 {
2205 struct elf_m32r_dyn_relocs *p;
2206
2207 for (p = ((struct elf_m32r_dyn_relocs *)
2208 elf_section_data (s)->local_dynrel);
2209 p != NULL;
2210 p = p->next)
2211 {
2212 if (! bfd_is_abs_section (p->sec)
2213 && bfd_is_abs_section (p->sec->output_section))
2214 {
2215 /* Input section has been discarded, either because
2216 it is a copy of a linkonce section or due to
2217 linker script /DISCARD/, so we'll be discarding
2218 the relocs too. */
2219 }
2220 else if (p->count != 0)
2221 {
2222 srel = elf_section_data (p->sec)->sreloc;
eea6121a 2223 srel->size += p->count * sizeof (Elf32_External_Rela);
6edf0760
NC
2224 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2225 info->flags |= DF_TEXTREL;
2226 }
2227 }
2228 }
2229
2230 local_got = elf_local_got_refcounts (ibfd);
2231 if (!local_got)
2232 continue;
2233
2234 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2235 locsymcount = symtab_hdr->sh_info;
2236 end_local_got = local_got + locsymcount;
2237 s = htab->sgot;
2238 srel = htab->srelgot;
2239 for (; local_got < end_local_got; ++local_got)
2240 {
2241 if (*local_got > 0)
2242 {
eea6121a
AM
2243 *local_got = s->size;
2244 s->size += 4;
6edf0760 2245 if (info->shared)
eea6121a 2246 srel->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2247 }
2248 else
2249 *local_got = (bfd_vma) -1;
2250 }
2251 }
2252
2253 /* Allocate global sym .plt and .got entries, and space for global
2254 sym dynamic relocs. */
47b0e7ad 2255 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC
2256
2257 /* We now have determined the sizes of the various dynamic sections.
2258 Allocate memory for them. */
2259 relocs = FALSE;
2260 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2261 {
6edf0760
NC
2262 if ((s->flags & SEC_LINKER_CREATED) == 0)
2263 continue;
252b5132 2264
6edf0760
NC
2265 if (s == htab->splt
2266 || s == htab->sgot
2267 || s == htab->sgotplt)
2268 {
2269 /* Strip this section if we don't need it; see the
2270 comment below. */
2271 }
2272 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
2273 {
eea6121a 2274 if (s->size != 0 && s != htab->srelplt)
6edf0760
NC
2275 relocs = TRUE;
2276
2277 /* We use the reloc_count field as a counter if we need
2278 to copy relocs into the output file. */
2279 s->reloc_count = 0;
2280 }
252b5132 2281 else
47b0e7ad
NC
2282 /* It's not one of our sections, so don't allocate space. */
2283 continue;
6edf0760 2284
eea6121a 2285 if (s->size == 0)
6edf0760
NC
2286 {
2287 /* If we don't need this section, strip it from the
2288 output file. This is mostly to handle .rela.bss and
2289 .rela.plt. We must create both sections in
2290 create_dynamic_sections, because they must be created
2291 before the linker maps input sections to output
2292 sections. The linker does that before
2293 adjust_dynamic_symbol is called, and it is that
2294 function which decides whether anything needs to go
2295 into these sections. */
8423293d 2296 s->flags |= SEC_EXCLUDE;
6edf0760
NC
2297 continue;
2298 }
2299
2300 /* Allocate memory for the section contents. We use bfd_zalloc
2301 here in case unused entries are not reclaimed before the
2302 section's contents are written out. This should not happen,
2303 but this way if it does, we get a R_M32R_NONE reloc instead
2304 of garbage. */
47b0e7ad 2305 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760
NC
2306 if (s->contents == NULL)
2307 return FALSE;
2308 }
2309
2310 if (htab->root.dynamic_sections_created)
2311 {
2312 /* Add some entries to the .dynamic section. We fill in the
2313 values later, in m32r_elf_finish_dynamic_sections, but we
2314 must add the entries now so that we get the correct size for
2315 the .dynamic section. The DT_DEBUG entry is filled in by the
2316 dynamic linker and used by the debugger. */
2317#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2318 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6edf0760 2319
80447b21 2320 if (info->executable)
252b5132 2321 {
6edf0760
NC
2322 if (! add_dynamic_entry (DT_DEBUG, 0))
2323 return FALSE;
252b5132 2324 }
6edf0760 2325
eea6121a 2326 if (htab->splt->size != 0)
6edf0760
NC
2327 {
2328 if (! add_dynamic_entry (DT_PLTGOT, 0)
2329 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2330 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2331 || ! add_dynamic_entry (DT_JMPREL, 0))
2332 return FALSE;
2333 }
2334
2335 if (relocs)
2336 {
2337 if (! add_dynamic_entry (DT_RELA, 0)
2338 || ! add_dynamic_entry (DT_RELASZ, 0)
2339 || ! add_dynamic_entry (DT_RELAENT,
2340 sizeof (Elf32_External_Rela)))
2341 return FALSE;
2342
2343 /* If any dynamic relocs apply to a read-only section,
2344 then we need a DT_TEXTREL entry. */
2345 if ((info->flags & DF_TEXTREL) == 0)
2346 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
47b0e7ad 2347 info);
6edf0760
NC
2348
2349 if ((info->flags & DF_TEXTREL) != 0)
2350 {
2351 if (! add_dynamic_entry (DT_TEXTREL, 0))
2352 return FALSE;
2353 }
2354 }
252b5132 2355 }
6edf0760
NC
2356#undef add_dynamic_entry
2357
2358 return TRUE;
252b5132 2359}
47b0e7ad 2360
252b5132
RH
2361/* Relocate an M32R/D ELF section.
2362 There is some attempt to make this function usable for many architectures,
f0fe0e16 2363 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH
2364
2365 The RELOCATE_SECTION function is called by the new ELF backend linker
2366 to handle the relocations for a section.
2367
2368 The relocs are always passed as Rela structures; if the section
2369 actually uses Rel structures, the r_addend field will always be
2370 zero.
2371
2372 This function is responsible for adjust the section contents as
2373 necessary, and (if using Rela relocs and generating a
1049f94e 2374 relocatable output file) adjusting the reloc addend as
252b5132
RH
2375 necessary.
2376
2377 This function does not have to worry about setting the reloc
2378 address or the reloc symbol index.
2379
2380 LOCAL_SYMS is a pointer to the swapped in local symbols.
2381
2382 LOCAL_SECTIONS is an array giving the section in the input file
2383 corresponding to the st_shndx field of each local symbol.
2384
2385 The global hash table entry for the global symbols can be found
2386 via elf_sym_hashes (input_bfd).
2387
1049f94e 2388 When generating relocatable output, this function must handle
252b5132
RH
2389 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2390 going to be the section symbol corresponding to the output
2391 section, which means that the addend must be adjusted
2392 accordingly. */
2393
b34976b6 2394static bfd_boolean
47b0e7ad
NC
2395m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2396 struct bfd_link_info *info,
2397 bfd *input_bfd,
2398 asection *input_section,
2399 bfd_byte *contents,
2400 Elf_Internal_Rela *relocs,
2401 Elf_Internal_Sym *local_syms,
2402 asection **local_sections)
252b5132
RH
2403{
2404 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2405 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2406 Elf_Internal_Rela *rel, *relend;
2407 /* Assume success. */
b34976b6 2408 bfd_boolean ret = TRUE;
252b5132 2409
6edf0760
NC
2410 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2411 bfd *dynobj;
2412 bfd_vma *local_got_offsets;
2413 asection *sgot, *splt, *sreloc;
07515404 2414 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760
NC
2415
2416 dynobj = htab->root.dynobj;
2417 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2418
6edf0760
NC
2419 sgot = htab->sgot;
2420 splt = htab->splt;
2421 sreloc = NULL;
b491616a 2422
252b5132
RH
2423 rel = relocs;
2424 relend = relocs + input_section->reloc_count;
2425 for (; rel < relend; rel++)
2426 {
2427 int r_type;
2428 reloc_howto_type *howto;
2429 unsigned long r_symndx;
6edf0760 2430 struct elf_link_hash_entry *h;
252b5132 2431 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
6edf0760
NC
2432 ensure it's zero (we use REL relocs, not RELA). Therefore this
2433 should be assigning zero to `addend', but for clarity we use
2434 `r_addend'. */
252b5132
RH
2435 bfd_vma addend = rel->r_addend;
2436 bfd_vma offset = rel->r_offset;
252b5132
RH
2437 Elf_Internal_Sym *sym;
2438 asection *sec;
2439 const char *sym_name;
2440 bfd_reloc_status_type r;
2441 const char *errmsg = NULL;
6edf0760 2442 bfd_boolean use_rel = FALSE;
252b5132
RH
2443
2444 h = NULL;
2445 r_type = ELF32_R_TYPE (rel->r_info);
2446 if (r_type < 0 || r_type >= (int) R_M32R_max)
2447 {
d003868e
AM
2448 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2449 input_bfd,
252b5132
RH
2450 (int) r_type);
2451 bfd_set_error (bfd_error_bad_value);
b34976b6 2452 ret = FALSE;
252b5132
RH
2453 continue;
2454 }
2455
47b0e7ad 2456 if ( r_type == R_M32R_GNU_VTENTRY
6edf0760
NC
2457 || r_type == R_M32R_GNU_VTINHERIT
2458 || r_type == R_M32R_NONE
2459 || r_type == R_M32R_RELA_GNU_VTENTRY
2460 || r_type == R_M32R_RELA_GNU_VTINHERIT)
252b5132
RH
2461 continue;
2462
6edf0760
NC
2463 if (r_type <= R_M32R_GNU_VTENTRY)
2464 use_rel = TRUE;
2465
252b5132
RH
2466 howto = m32r_elf_howto_table + r_type;
2467 r_symndx = ELF32_R_SYM (rel->r_info);
2468
688c58f3 2469 if (info->relocatable && use_rel)
252b5132 2470 {
1049f94e 2471 /* This is a relocatable link. We don't have to change
252b5132
RH
2472 anything, unless the reloc is against a section symbol,
2473 in which case we have to adjust according to where the
2474 section symbol winds up in the output section. */
2475 sec = NULL;
2476 if (r_symndx >= symtab_hdr->sh_info)
47b0e7ad
NC
2477 /* External symbol. */
2478 continue;
252b5132
RH
2479
2480 /* Local symbol. */
2481 sym = local_syms + r_symndx;
2482 sym_name = "<local symbol>";
2483 /* STT_SECTION: symbol is associated with a section. */
2484 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad
NC
2485 /* Symbol isn't associated with a section. Nothing to do. */
2486 continue;
252b5132
RH
2487
2488 sec = local_sections[r_symndx];
2489 addend += sec->output_offset + sym->st_value;
252b5132 2490
252b5132
RH
2491 /* If partial_inplace, we need to store any additional addend
2492 back in the section. */
2493 if (! howto->partial_inplace)
2494 continue;
2495 /* ??? Here is a nice place to call a special_function
2496 like handler. */
2497 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2498 r = _bfd_relocate_contents (howto, input_bfd,
2499 addend, contents + offset);
2500 else
2501 {
2502 Elf_Internal_Rela *lorel;
2503
2504 /* We allow an arbitrary number of HI16 relocs before the
2505 LO16 reloc. This permits gcc to emit the HI and LO relocs
2506 itself. */
2507 for (lorel = rel + 1;
2508 (lorel < relend
2509 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2510 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2511 lorel++)
2512 continue;
2513 if (lorel < relend
2514 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2515 {
2516 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2517 contents, addend);
2518 r = bfd_reloc_ok;
2519 }
2520 else
2521 r = _bfd_relocate_contents (howto, input_bfd,
2522 addend, contents + offset);
2523 }
252b5132
RH
2524 }
2525 else
2526 {
2527 bfd_vma relocation;
2528
2529 /* This is a final link. */
2530 sym = NULL;
2531 sec = NULL;
6edf0760 2532 h = NULL;
252b5132
RH
2533
2534 if (r_symndx < symtab_hdr->sh_info)
2535 {
2536 /* Local symbol. */
2537 sym = local_syms + r_symndx;
2538 sec = local_sections[r_symndx];
2539 sym_name = "<local symbol>";
6edf0760 2540
688c58f3 2541 if (!use_rel)
6edf0760
NC
2542 {
2543 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2544 addend = rel->r_addend;
2545
2546 if (info->relocatable)
2547 {
2548 /* This is a relocatable link. We don't have to change
2549 anything, unless the reloc is against a section symbol,
2550 in which case we have to adjust according to where the
2551 section symbol winds up in the output section. */
2552 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2553 rel->r_addend += sec->output_offset + sym->st_value;
41978308 2554
6edf0760
NC
2555 continue;
2556 }
2557 }
2558 else
2559 {
2560 relocation = (sec->output_section->vma
2561 + sec->output_offset
2562 + sym->st_value);
2563 }
252b5132
RH
2564 }
2565 else
2566 {
2567 /* External symbol. */
688c58f3 2568 if (info->relocatable && !use_rel)
6edf0760
NC
2569 continue;
2570
252b5132
RH
2571 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2572 while (h->root.type == bfd_link_hash_indirect
2573 || h->root.type == bfd_link_hash_warning)
2574 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2575 sym_name = h->root.root.string;
2576
2577 if (h->root.type == bfd_link_hash_defined
2578 || h->root.type == bfd_link_hash_defweak)
2579 {
6edf0760 2580 bfd_boolean dyn;
252b5132 2581 sec = h->root.u.def.section;
6edf0760
NC
2582
2583 dyn = htab->root.dynamic_sections_created;
2584 sec = h->root.u.def.section;
2585 if (r_type == R_M32R_GOTPC24
2586 || (r_type == R_M32R_GOTPC_HI_ULO
2587 || r_type == R_M32R_GOTPC_HI_SLO
2588 || r_type == R_M32R_GOTPC_LO)
2589 || (r_type == R_M32R_26_PLTREL
2590 && h->plt.offset != (bfd_vma) -1)
2591 || ((r_type == R_M32R_GOT24
2592 || r_type == R_M32R_GOT16_HI_ULO
2593 || r_type == R_M32R_GOT16_HI_SLO
2594 || r_type == R_M32R_GOT16_LO)
c152c796
AM
2595 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2596 info->shared, h)
6edf0760
NC
2597 && (! info->shared
2598 || (! info->symbolic && h->dynindx != -1)
f5385ebf 2599 || !h->def_regular))
6edf0760
NC
2600 || (info->shared
2601 && ((! info->symbolic && h->dynindx != -1)
f5385ebf 2602 || !h->def_regular)
6edf0760
NC
2603 && (((r_type == R_M32R_16_RELA
2604 || r_type == R_M32R_32_RELA
2605 || r_type == R_M32R_24_RELA
2606 || r_type == R_M32R_HI16_ULO_RELA
2607 || r_type == R_M32R_HI16_SLO_RELA
2608 || r_type == R_M32R_LO16_RELA)
f5385ebf 2609 && !h->forced_local)
6edf0760
NC
2610 || r_type == R_M32R_10_PCREL_RELA
2611 || r_type == R_M32R_18_PCREL_RELA
2612 || r_type == R_M32R_26_PCREL_RELA)
2613 && ((input_section->flags & SEC_ALLOC) != 0
2614 /* DWARF will emit R_M32R_16(24,32) relocations
41978308 2615 in its sections against symbols defined
6edf0760
NC
2616 externally in shared libraries. We can't do
2617 anything with them here. */
2618 || ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 2619 && h->def_dynamic))))
6edf0760
NC
2620 {
2621 /* In these cases, we don't need the relocation
2622 value. We check specially because in some
2623 obscure cases sec->output_section will be NULL. */
2624 relocation = 0;
2625 }
2626 else if (sec->output_section == NULL)
2627 {
2628 (*_bfd_error_handler)
2629 (_("%s: warning: unresolvable relocation against symbol `%s' from %s section"),
2630 bfd_get_filename (input_bfd), h->root.root.string,
2631 bfd_get_section_name (input_bfd, input_section));
2632
2633 relocation = 0;
2634 }
252b5132
RH
2635 else
2636 relocation = (h->root.u.def.value
2637 + sec->output_section->vma
2638 + sec->output_offset);
2639 }
2640 else if (h->root.type == bfd_link_hash_undefweak)
2641 relocation = 0;
59c2e50f 2642 else if (info->unresolved_syms_in_objects == RM_IGNORE
6edf0760
NC
2643 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2644 relocation = 0;
252b5132
RH
2645 else
2646 {
2647 if (! ((*info->callbacks->undefined_symbol)
2648 (info, h->root.root.string, input_bfd,
6edf0760 2649 input_section, offset,
59c2e50f 2650 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
6edf0760 2651 || ELF_ST_VISIBILITY (h->other)))))
b34976b6 2652 return FALSE;
252b5132
RH
2653 relocation = 0;
2654 }
2655 }
2656
2657 /* Sanity check the address. */
07515404 2658 if (offset > high_address)
252b5132
RH
2659 {
2660 r = bfd_reloc_outofrange;
2661 goto check_reloc;
2662 }
2663
2664 switch ((int) r_type)
2665 {
097f809a
NC
2666 case R_M32R_GOTOFF:
2667 /* Relocation is relative to the start of the global offset
2668 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2669
097f809a
NC
2670 ld24 rx. #label@GOTOFF + addend
2671 sub rx, r12. */
2672
2673 BFD_ASSERT (sgot != NULL);
2674
2675 relocation = -(relocation - sgot->output_section->vma);
2676 rel->r_addend = -rel->r_addend;
2677 break;
2678
2679 case R_M32R_GOTOFF_HI_ULO:
2680 case R_M32R_GOTOFF_HI_SLO:
2681 case R_M32R_GOTOFF_LO:
2682 BFD_ASSERT (sgot != NULL);
2683
2684 relocation -= sgot->output_section->vma;
2685
2686 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2687 && ((relocation + rel->r_addend) & 0x8000))
2688 rel->r_addend += 0x10000;
2689 break;
2690
6edf0760
NC
2691 case R_M32R_GOTPC24:
2692 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2693 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2694 */
2695 relocation = sgot->output_section->vma;
2696 break;
2697
2698 case R_M32R_GOTPC_HI_ULO:
2699 case R_M32R_GOTPC_HI_SLO:
41978308 2700 case R_M32R_GOTPC_LO:
6edf0760
NC
2701 {
2702 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2703 bl .+4
2704 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2705 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2706 or
2707 bl .+4
2708 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2709 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2710 */
2711 relocation = sgot->output_section->vma;
2712 relocation -= (input_section->output_section->vma
2713 + input_section->output_offset
2714 + rel->r_offset);
41978308 2715 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC
2716 && ((relocation + rel->r_addend) & 0x8000))
2717 rel->r_addend += 0x10000;
2718
2719 break;
2720 }
2721 case R_M32R_GOT16_HI_ULO:
2722 case R_M32R_GOT16_HI_SLO:
41978308 2723 case R_M32R_GOT16_LO:
6edf0760
NC
2724 /* Fall through. */
2725 case R_M32R_GOT24:
2726 /* Relocation is to the entry for this symbol in the global
2727 offset table. */
2728 BFD_ASSERT (sgot != NULL);
41978308 2729
6edf0760
NC
2730 if (h != NULL)
2731 {
2732 bfd_boolean dyn;
2733 bfd_vma off;
41978308 2734
6edf0760
NC
2735 off = h->got.offset;
2736 BFD_ASSERT (off != (bfd_vma) -1);
2737
2738 dyn = htab->root.dynamic_sections_created;
c152c796 2739 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6edf0760
NC
2740 || (info->shared
2741 && (info->symbolic
2742 || h->dynindx == -1
f5385ebf
AM
2743 || h->forced_local)
2744 && h->def_regular))
6edf0760
NC
2745 {
2746 /* This is actually a static link, or it is a
2747 -Bsymbolic link and the symbol is defined
2748 locally, or the symbol was forced to be local
2749 because of a version file. We must initialize
2750 this entry in the global offset table. Since the
2751 offset must always be a multiple of 4, we use the
2752 least significant bit to record whether we have
2753 initialized it already.
41978308 2754
6edf0760
NC
2755 When doing a dynamic link, we create a .rela.got
2756 relocation entry to initialize the value. This
2757 is done in the finish_dynamic_symbol routine. */
2758 if ((off & 1) != 0)
2759 off &= ~1;
2760 else
2761 {
2762 bfd_put_32 (output_bfd, relocation,
2763 sgot->contents + off);
2764 h->got.offset |= 1;
2765 }
2766 }
41978308 2767
6edf0760
NC
2768 relocation = sgot->output_offset + off;
2769 }
2770 else
2771 {
2772 bfd_vma off;
2773 bfd_byte *loc;
41978308 2774
6edf0760
NC
2775 BFD_ASSERT (local_got_offsets != NULL
2776 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2777
6edf0760 2778 off = local_got_offsets[r_symndx];
41978308 2779
6edf0760
NC
2780 /* The offset must always be a multiple of 4. We use
2781 the least significant bit to record whether we have
2782 already processed this entry. */
2783 if ((off & 1) != 0)
2784 off &= ~1;
2785 else
2786 {
2787 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2788
6edf0760
NC
2789 if (info->shared)
2790 {
2791 asection *srelgot;
2792 Elf_Internal_Rela outrel;
41978308 2793
6edf0760
NC
2794 /* We need to generate a R_M32R_RELATIVE reloc
2795 for the dynamic linker. */
2796 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2797 BFD_ASSERT (srelgot != NULL);
41978308 2798
6edf0760
NC
2799 outrel.r_offset = (sgot->output_section->vma
2800 + sgot->output_offset
2801 + off);
2802 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2803 outrel.r_addend = relocation;
2804 loc = srelgot->contents;
47b0e7ad 2805 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2806 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2807 ++srelgot->reloc_count;
2808 }
41978308 2809
6edf0760
NC
2810 local_got_offsets[r_symndx] |= 1;
2811 }
41978308 2812
6edf0760
NC
2813 relocation = sgot->output_offset + off;
2814 }
2815 if ((r_type == R_M32R_GOT16_HI_SLO)
2816 && ((relocation + rel->r_addend) & 0x8000))
2817 rel->r_addend += 0x10000;
2818
2819 break;
41978308 2820
6edf0760
NC
2821 case R_M32R_26_PLTREL:
2822 /* Relocation is to the entry for this symbol in the
2823 procedure linkage table. */
41978308 2824
6edf0760
NC
2825 /* The native assembler will generate a 26_PLTREL reloc
2826 for a local symbol if you assemble a call from one
2827 section to another when using -K pic. */
2828 if (h == NULL)
2829 break;
2830
f5385ebf 2831 if (h->forced_local)
6edf0760
NC
2832 break;
2833
2834 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC
2835 /* We didn't make a PLT entry for this symbol. This
2836 happens when statically linking PIC code, or when
2837 using -Bsymbolic. */
2838 break;
41978308 2839
6edf0760
NC
2840 relocation = (splt->output_section->vma
2841 + splt->output_offset
2842 + h->plt.offset);
2843 break;
41978308 2844
6edf0760 2845 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC
2846 if ((relocation + rel->r_addend) & 0x8000)
2847 rel->r_addend += 0x10000;
6edf0760 2848 /* Fall through. */
47b0e7ad 2849
6edf0760
NC
2850 case R_M32R_16_RELA:
2851 case R_M32R_24_RELA:
2852 case R_M32R_32_RELA:
2853 case R_M32R_18_PCREL_RELA:
2854 case R_M32R_26_PCREL_RELA:
2855 case R_M32R_HI16_ULO_RELA:
2856 case R_M32R_LO16_RELA:
6edf0760
NC
2857 if (info->shared
2858 && r_symndx != 0
2859 && (input_section->flags & SEC_ALLOC) != 0
2860 && ((r_type != R_M32R_18_PCREL_RELA
2861 && r_type != R_M32R_26_PCREL_RELA)
2862 || (h != NULL
2863 && h->dynindx != -1
2864 && (! info->symbolic
f5385ebf 2865 || !h->def_regular))))
6edf0760
NC
2866 {
2867 Elf_Internal_Rela outrel;
2868 bfd_boolean skip, relocate;
2869 bfd_byte *loc;
41978308 2870
6edf0760
NC
2871 /* When generating a shared object, these relocations
2872 are copied into the output file to be resolved at run
2873 time. */
6edf0760
NC
2874 if (sreloc == NULL)
2875 {
2876 const char *name;
41978308 2877
6edf0760
NC
2878 name = (bfd_elf_string_from_elf_section
2879 (input_bfd,
2880 elf_elfheader (input_bfd)->e_shstrndx,
2881 elf_section_data (input_section)->rel_hdr.sh_name));
2882 if (name == NULL)
2883 return FALSE;
41978308 2884
6edf0760
NC
2885 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2886 && strcmp (bfd_get_section_name (input_bfd,
2887 input_section),
2888 name + 5) == 0);
41978308 2889
6edf0760
NC
2890 sreloc = bfd_get_section_by_name (dynobj, name);
2891 BFD_ASSERT (sreloc != NULL);
2892 }
41978308 2893
6edf0760
NC
2894 skip = FALSE;
2895 relocate = FALSE;
41978308 2896
6edf0760
NC
2897 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2898 info,
2899 input_section,
2900 rel->r_offset);
2901 if (outrel.r_offset == (bfd_vma) -1)
2902 skip = TRUE;
2903 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2904 skip = relocate = TRUE;
6edf0760
NC
2905 outrel.r_offset += (input_section->output_section->vma
2906 + input_section->output_offset);
41978308 2907
6edf0760
NC
2908 if (skip)
2909 memset (&outrel, 0, sizeof outrel);
2910 else if (r_type == R_M32R_18_PCREL_RELA
2911 || r_type == R_M32R_26_PCREL_RELA)
2912 {
2913 BFD_ASSERT (h != NULL && h->dynindx != -1);
2914 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2915 outrel.r_addend = rel->r_addend;
2916 }
2917 else
2918 {
2919 /* h->dynindx may be -1 if this symbol was marked to
2920 become local. */
2921 if (h == NULL
2922 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2923 && h->def_regular))
6edf0760
NC
2924 {
2925 relocate = TRUE;
2926 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2927 outrel.r_addend = relocation + rel->r_addend;
2928 }
2929 else
2930 {
2931 BFD_ASSERT (h->dynindx != -1);
2932 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2933 outrel.r_addend = relocation + rel->r_addend;
2934 }
2935 }
2936
2937 loc = sreloc->contents;
47b0e7ad 2938 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2939 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2940 ++sreloc->reloc_count;
2941
2942 /* If this reloc is against an external symbol, we do
2943 not want to fiddle with the addend. Otherwise, we
2944 need to include the symbol value so that it becomes
2945 an addend for the dynamic reloc. */
2946 if (! relocate)
2947 continue;
2948 }
2949 break;
41978308 2950
252b5132
RH
2951 case (int) R_M32R_10_PCREL :
2952 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2953 contents, offset,
2954 sec, relocation, addend);
6edf0760 2955 goto check_reloc;
252b5132
RH
2956
2957 case (int) R_M32R_HI16_SLO :
2958 case (int) R_M32R_HI16_ULO :
2959 {
2960 Elf_Internal_Rela *lorel;
2961
2962 /* We allow an arbitrary number of HI16 relocs before the
2963 LO16 reloc. This permits gcc to emit the HI and LO relocs
2964 itself. */
2965 for (lorel = rel + 1;
2966 (lorel < relend
2967 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2968 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2969 lorel++)
2970 continue;
2971 if (lorel < relend
2972 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2973 {
2974 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2975 contents, relocation + addend);
2976 r = bfd_reloc_ok;
2977 }
2978 else
2979 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2980 contents, offset,
2981 relocation, addend);
2982 }
6edf0760
NC
2983
2984 goto check_reloc;
252b5132 2985
af705ba8 2986 case (int) R_M32R_SDA16_RELA:
252b5132
RH
2987 case (int) R_M32R_SDA16 :
2988 {
2989 const char *name;
2990
2991 BFD_ASSERT (sec != NULL);
2992 name = bfd_get_section_name (abfd, sec);
2993
47b0e7ad 2994 if ( strcmp (name, ".sdata") == 0
252b5132
RH
2995 || strcmp (name, ".sbss") == 0
2996 || strcmp (name, ".scommon") == 0)
2997 {
2998 bfd_vma sda_base;
2999 bfd *out_bfd = sec->output_section->owner;
3000
3001 r = m32r_elf_final_sda_base (out_bfd, info,
3002 &errmsg,
3003 &sda_base);
3004 if (r != bfd_reloc_ok)
3005 {
b34976b6 3006 ret = FALSE;
252b5132
RH
3007 goto check_reloc;
3008 }
3009
3010 /* At this point `relocation' contains the object's
3011 address. */
3012 relocation -= sda_base;
3013 /* Now it contains the offset from _SDA_BASE_. */
3014 }
3015 else
3016 {
8f615d07 3017 (*_bfd_error_handler)
d003868e
AM
3018 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3019 input_bfd,
3020 sec,
8f615d07 3021 sym_name,
d003868e 3022 m32r_elf_howto_table[(int) r_type].name);
252b5132 3023 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3024 ret = FALSE;
252b5132
RH
3025 continue;
3026 }
3027 }
47b0e7ad 3028 /* Fall through. */
6edf0760
NC
3029
3030 default : /* OLD_M32R_RELOC */
252b5132 3031
252b5132
RH
3032 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3033 contents, offset,
3034 relocation, addend);
6edf0760 3035 goto check_reloc;
252b5132 3036 }
6edf0760
NC
3037
3038 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3039 contents, rel->r_offset,
3040 relocation, rel->r_addend);
3041
252b5132
RH
3042 }
3043
3044 check_reloc:
3045
3046 if (r != bfd_reloc_ok)
3047 {
3048 /* FIXME: This should be generic enough to go in a utility. */
3049 const char *name;
3050
3051 if (h != NULL)
3052 name = h->root.root.string;
3053 else
3054 {
3055 name = (bfd_elf_string_from_elf_section
3056 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3057 if (name == NULL || *name == '\0')
3058 name = bfd_section_name (input_bfd, sec);
3059 }
3060
3061 if (errmsg != NULL)
3062 goto common_error;
3063
3064 switch (r)
3065 {
3066 case bfd_reloc_overflow:
3067 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L
3068 (info, (h ? &h->root : NULL), name, howto->name,
3069 (bfd_vma) 0, input_bfd, input_section, offset)))
b34976b6 3070 return FALSE;
252b5132
RH
3071 break;
3072
3073 case bfd_reloc_undefined:
3074 if (! ((*info->callbacks->undefined_symbol)
3075 (info, name, input_bfd, input_section,
b34976b6
AM
3076 offset, TRUE)))
3077 return FALSE;
252b5132
RH
3078 break;
3079
3080 case bfd_reloc_outofrange:
3081 errmsg = _("internal error: out of range error");
3082 goto common_error;
3083
3084 case bfd_reloc_notsupported:
3085 errmsg = _("internal error: unsupported relocation error");
3086 goto common_error;
3087
3088 case bfd_reloc_dangerous:
3089 errmsg = _("internal error: dangerous error");
3090 goto common_error;
3091
3092 default:
3093 errmsg = _("internal error: unknown error");
3094 /* fall through */
3095
3096 common_error:
3097 if (!((*info->callbacks->warning)
3098 (info, errmsg, name, input_bfd, input_section,
3099 offset)))
b34976b6 3100 return FALSE;
252b5132
RH
3101 break;
3102 }
3103 }
3104 }
3105
3106 return ret;
3107}
6edf0760
NC
3108
3109/* Finish up dynamic symbol handling. We set the contents of various
3110 dynamic sections here. */
47b0e7ad 3111
6edf0760 3112static bfd_boolean
47b0e7ad
NC
3113m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3114 struct bfd_link_info *info,
3115 struct elf_link_hash_entry *h,
3116 Elf_Internal_Sym *sym)
6edf0760
NC
3117{
3118 struct elf_m32r_link_hash_table *htab;
3119 bfd *dynobj;
3120 bfd_byte *loc;
41978308 3121
6edf0760 3122#ifdef DEBUG_PIC
47b0e7ad 3123 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3124#endif
41978308 3125
6edf0760
NC
3126 htab = m32r_elf_hash_table (info);
3127 dynobj = htab->root.dynobj;
3128
3129 if (h->plt.offset != (bfd_vma) -1)
3130 {
3131 asection *splt;
3132 asection *sgot;
3133 asection *srela;
3134
3135 bfd_vma plt_index;
3136 bfd_vma got_offset;
3137 Elf_Internal_Rela rela;
41978308 3138
6edf0760
NC
3139 /* This symbol has an entry in the procedure linkage table. Set
3140 it up. */
41978308 3141
6edf0760 3142 BFD_ASSERT (h->dynindx != -1);
41978308 3143
6edf0760
NC
3144 splt = htab->splt;
3145 sgot = htab->sgotplt;
3146 srela = htab->srelplt;
3147 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3148
3149 /* Get the index in the procedure linkage table which
3150 corresponds to this symbol. This is the index of this symbol
3151 in all the symbols for which we are making plt entries. The
3152 first entry in the procedure linkage table is reserved. */
3153 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3154
3155 /* Get the offset into the .got table of the entry that
3156 corresponds to this function. Each .got entry is 4 bytes.
3157 The first three are reserved. */
3158 got_offset = (plt_index + 3) * 4;
3159
3160 /* Fill in the entry in the procedure linkage table. */
3161 if (! info->shared)
3162 {
3163 bfd_put_32 (output_bfd,
3164 (PLT_ENTRY_WORD0b
3165 + (((sgot->output_section->vma
3166 + sgot->output_offset
3167 + got_offset) >> 16) & 0xffff)),
3168 splt->contents + h->plt.offset);
3169 bfd_put_32 (output_bfd,
3170 (PLT_ENTRY_WORD1b
3171 + ((sgot->output_section->vma
3172 + sgot->output_offset
3173 + got_offset) & 0xffff)),
3174 splt->contents + h->plt.offset + 4);
3175 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3176 splt->contents + h->plt.offset + 8);
3177 bfd_put_32 (output_bfd,
3178 (PLT_ENTRY_WORD3
3179 + plt_index * sizeof (Elf32_External_Rela)),
3180 splt->contents + h->plt.offset + 12);
3181 bfd_put_32 (output_bfd,
3182 (PLT_ENTRY_WORD4
3183 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3184 splt->contents + h->plt.offset + 16);
3185 }
3186 else
3187 {
3188 bfd_put_32 (output_bfd,
3189 PLT_ENTRY_WORD0 + got_offset,
3190 splt->contents + h->plt.offset);
3191 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3192 splt->contents + h->plt.offset + 4);
3193 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3194 splt->contents + h->plt.offset + 8);
3195 bfd_put_32 (output_bfd,
3196 (PLT_ENTRY_WORD3
3197 + plt_index * sizeof (Elf32_External_Rela)),
3198 splt->contents + h->plt.offset + 12);
3199 bfd_put_32 (output_bfd,
3200 (PLT_ENTRY_WORD4
3201 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3202 splt->contents + h->plt.offset + 16);
3203 }
41978308 3204
6edf0760
NC
3205 /* Fill in the entry in the global offset table. */
3206 bfd_put_32 (output_bfd,
3207 (splt->output_section->vma
3208 + splt->output_offset
3209 + h->plt.offset
3210 + 12), /* same offset */
3211 sgot->contents + got_offset);
3212
3213 /* Fill in the entry in the .rela.plt section. */
3214 rela.r_offset = (sgot->output_section->vma
3215 + sgot->output_offset
3216 + got_offset);
3217 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3218 rela.r_addend = 0;
3219 loc = srela->contents;
47b0e7ad 3220 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3221 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3222
f5385ebf 3223 if (!h->def_regular)
6edf0760
NC
3224 {
3225 /* Mark the symbol as undefined, rather than as defined in
3226 the .plt section. Leave the value alone. */
3227 sym->st_shndx = SHN_UNDEF;
3228 }
3229 }
3230
3231 if (h->got.offset != (bfd_vma) -1)
3232 {
3233 asection *sgot;
3234 asection *srela;
3235 Elf_Internal_Rela rela;
41978308 3236
6edf0760
NC
3237 /* This symbol has an entry in the global offset table. Set it
3238 up. */
41978308 3239
6edf0760
NC
3240 sgot = htab->sgot;
3241 srela = htab->srelgot;
3242 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3243
6edf0760
NC
3244 rela.r_offset = (sgot->output_section->vma
3245 + sgot->output_offset
3246 + (h->got.offset &~ 1));
41978308 3247
6edf0760
NC
3248 /* If this is a -Bsymbolic link, and the symbol is defined
3249 locally, we just want to emit a RELATIVE reloc. Likewise if
3250 the symbol was forced to be local because of a version file.
3251 The entry in the global offset table will already have been
3252 initialized in the relocate_section function. */
3253 if (info->shared
3254 && (info->symbolic
3255 || h->dynindx == -1
f5385ebf
AM
3256 || h->forced_local)
3257 && h->def_regular)
6edf0760
NC
3258 {
3259 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3260 rela.r_addend = (h->root.u.def.value
3261 + h->root.u.def.section->output_section->vma
3262 + h->root.u.def.section->output_offset);
3263 }
3264 else
3265 {
47b0e7ad 3266 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC
3267 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3268 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3269 rela.r_addend = 0;
3270 }
41978308 3271
6edf0760 3272 loc = srela->contents;
47b0e7ad 3273 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3274 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3275 ++srela->reloc_count;
3276 }
41978308 3277
f5385ebf 3278 if (h->needs_copy)
6edf0760
NC
3279 {
3280 asection *s;
3281 Elf_Internal_Rela rela;
41978308 3282
6edf0760 3283 /* This symbols needs a copy reloc. Set it up. */
41978308 3284
6edf0760
NC
3285 BFD_ASSERT (h->dynindx != -1
3286 && (h->root.type == bfd_link_hash_defined
3287 || h->root.type == bfd_link_hash_defweak));
41978308 3288
6edf0760
NC
3289 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3290 ".rela.bss");
3291 BFD_ASSERT (s != NULL);
41978308 3292
6edf0760
NC
3293 rela.r_offset = (h->root.u.def.value
3294 + h->root.u.def.section->output_section->vma
3295 + h->root.u.def.section->output_offset);
3296 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3297 rela.r_addend = 0;
3298 loc = s->contents;
47b0e7ad 3299 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3300 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3301 ++s->reloc_count;
3302 }
41978308 3303
6edf0760
NC
3304 /* Mark some specially defined symbols as absolute. */
3305 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3306 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3307 sym->st_shndx = SHN_ABS;
41978308 3308
6edf0760
NC
3309 return TRUE;
3310}
3311
3312
3313/* Finish up the dynamic sections. */
41978308 3314
6edf0760 3315static bfd_boolean
47b0e7ad
NC
3316m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3317 struct bfd_link_info *info)
6edf0760
NC
3318{
3319 struct elf_m32r_link_hash_table *htab;
3320 bfd *dynobj;
3321 asection *sdyn;
3322 asection *sgot;
3323
3324#ifdef DEBUG_PIC
47b0e7ad 3325 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3326#endif
41978308 3327
6edf0760
NC
3328 htab = m32r_elf_hash_table (info);
3329 dynobj = htab->root.dynobj;
3330
3331 sgot = htab->sgotplt;
3332 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
41978308 3333
6edf0760
NC
3334 if (htab->root.dynamic_sections_created)
3335 {
3336 asection *splt;
3337 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3338
6edf0760 3339 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3340
6edf0760 3341 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3342 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC
3343
3344 for (; dyncon < dynconend; dyncon++)
3345 {
3346 Elf_Internal_Dyn dyn;
3347 const char *name;
3348 asection *s;
41978308 3349
6edf0760 3350 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3351
6edf0760
NC
3352 switch (dyn.d_tag)
3353 {
3354 default:
3355 break;
3356
3357 case DT_PLTGOT:
3358 name = ".got";
41978308 3359 s = htab->sgot->output_section;
6edf0760
NC
3360 goto get_vma;
3361 case DT_JMPREL:
3362 name = ".rela.plt";
3363 s = htab->srelplt->output_section;
3364 get_vma:
3365 BFD_ASSERT (s != NULL);
3366 dyn.d_un.d_ptr = s->vma;
3367 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3368 break;
3369
3370 case DT_PLTRELSZ:
3371 s = htab->srelplt->output_section;
3372 BFD_ASSERT (s != NULL);
eea6121a 3373 dyn.d_un.d_val = s->size;
6edf0760
NC
3374 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3375 break;
3376
3377 case DT_RELASZ:
3378 /* My reading of the SVR4 ABI indicates that the
3379 procedure linkage table relocs (DT_JMPREL) should be
3380 included in the overall relocs (DT_RELA). This is
3381 what Solaris does. However, UnixWare can not handle
3382 that case. Therefore, we override the DT_RELASZ entry
3383 here to make it not include the JMPREL relocs. Since
3384 the linker script arranges for .rela.plt to follow all
3385 other relocation sections, we don't have to worry
3386 about changing the DT_RELA entry. */
3387 if (htab->srelplt != NULL)
3388 {
3389 s = htab->srelplt->output_section;
eea6121a 3390 dyn.d_un.d_val -= s->size;
6edf0760
NC
3391 }
3392 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3393 break;
3394 }
3395 }
41978308 3396
6edf0760
NC
3397 /* Fill in the first entry in the procedure linkage table. */
3398 splt = htab->splt;
eea6121a 3399 if (splt && splt->size > 0)
6edf0760
NC
3400 {
3401 if (info->shared)
3402 {
3403 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3404 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3405 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3406 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3407 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3408 }
3409 else
3410 {
3411 unsigned long addr;
3412 /* addr = .got + 4 */
3413 addr = sgot->output_section->vma + sgot->output_offset + 4;
3414 bfd_put_32 (output_bfd,
3415 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3416 splt->contents);
41978308 3417 bfd_put_32 (output_bfd,
6edf0760
NC
3418 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3419 splt->contents + 4);
3420 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3421 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3422 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3423 }
3424
3425 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3426 PLT_ENTRY_SIZE;
3427 }
3428 }
3429
3430 /* Fill in the first three entries in the global offset table. */
eea6121a 3431 if (sgot && sgot->size > 0)
6edf0760
NC
3432 {
3433 if (sdyn == NULL)
3434 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3435 else
3436 bfd_put_32 (output_bfd,
3437 sdyn->output_section->vma + sdyn->output_offset,
3438 sgot->contents);
3439 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3440 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3441
3442 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3443 }
41978308 3444
6edf0760
NC
3445 return TRUE;
3446}
3447
252b5132
RH
3448\f
3449/* Set the right machine number. */
47b0e7ad 3450
b34976b6 3451static bfd_boolean
47b0e7ad 3452m32r_elf_object_p (bfd *abfd)
252b5132
RH
3453{
3454 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3455 {
3456 default:
3457 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3458 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3459 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3460 }
b34976b6 3461 return TRUE;
252b5132
RH
3462}
3463
3464/* Store the machine number in the flags field. */
47b0e7ad 3465
252b5132 3466static void
47b0e7ad
NC
3467m32r_elf_final_write_processing (bfd *abfd,
3468 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH
3469{
3470 unsigned long val;
3471
3472 switch (bfd_get_mach (abfd))
3473 {
3474 default:
3475 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3476 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3477 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH
3478 }
3479
3480 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3481 elf_elfheader (abfd)->e_flags |= val;
3482}
3483
c3668558 3484/* Function to keep M32R specific file flags. */
47b0e7ad 3485
b34976b6 3486static bfd_boolean
47b0e7ad 3487m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH
3488{
3489 BFD_ASSERT (!elf_flags_init (abfd)
3490 || elf_elfheader (abfd)->e_flags == flags);
3491
3492 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM
3493 elf_flags_init (abfd) = TRUE;
3494 return TRUE;
252b5132
RH
3495}
3496
252b5132
RH
3497/* Merge backend specific data from an object file to the output
3498 object file when linking. */
47b0e7ad 3499
b34976b6 3500static bfd_boolean
47b0e7ad 3501m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH
3502{
3503 flagword out_flags;
3504 flagword in_flags;
3505
3506 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3507 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3508 return TRUE;
252b5132
RH
3509
3510 in_flags = elf_elfheader (ibfd)->e_flags;
3511 out_flags = elf_elfheader (obfd)->e_flags;
3512
3513 if (! elf_flags_init (obfd))
3514 {
3515 /* If the input is the default architecture then do not
3516 bother setting the flags for the output architecture,
3517 instead allow future merges to do this. If no future
3518 merges ever set these flags then they will retain their
3519 unitialised values, which surprise surprise, correspond
3520 to the default values. */
3521 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3522 return TRUE;
c3668558 3523
b34976b6 3524 elf_flags_init (obfd) = TRUE;
252b5132
RH
3525 elf_elfheader (obfd)->e_flags = in_flags;
3526
3527 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3528 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC
3529 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3530 bfd_get_mach (ibfd));
252b5132 3531
b34976b6 3532 return TRUE;
252b5132
RH
3533 }
3534
3535 /* Check flag compatibility. */
3536 if (in_flags == out_flags)
b34976b6 3537 return TRUE;
252b5132
RH
3538
3539 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3540 {
88845958
NC
3541 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3542 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3543 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3544 {
8f615d07 3545 (*_bfd_error_handler)
d003868e 3546 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH
3547
3548 bfd_set_error (bfd_error_bad_value);
b34976b6 3549 return FALSE;
252b5132
RH
3550 }
3551 }
3552
b34976b6 3553 return TRUE;
252b5132
RH
3554}
3555
47b0e7ad
NC
3556/* Display the flags field. */
3557
b34976b6 3558static bfd_boolean
47b0e7ad 3559m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH
3560{
3561 FILE * file = (FILE *) ptr;
c3668558 3562
f12123c0 3563 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3564
252b5132 3565 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3566
252b5132 3567 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3568
252b5132
RH
3569 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3570 {
3571 default:
3572 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3573 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3574 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3575 }
c3668558 3576
252b5132 3577 fputc ('\n', file);
c3668558 3578
b34976b6 3579 return TRUE;
252b5132
RH
3580}
3581
47b0e7ad
NC
3582static asection *
3583m32r_elf_gc_mark_hook (asection *sec,
3584 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3585 Elf_Internal_Rela *rel,
3586 struct elf_link_hash_entry *h,
3587 Elf_Internal_Sym *sym)
252b5132
RH
3588{
3589 if (h != NULL)
3590 {
3591 switch (ELF32_R_TYPE (rel->r_info))
3592 {
3593 case R_M32R_GNU_VTINHERIT:
3594 case R_M32R_GNU_VTENTRY:
6edf0760
NC
3595 case R_M32R_RELA_GNU_VTINHERIT:
3596 case R_M32R_RELA_GNU_VTENTRY:
252b5132 3597 break;
c3668558 3598
252b5132
RH
3599 default:
3600 switch (h->root.type)
3601 {
3602 case bfd_link_hash_defined:
3603 case bfd_link_hash_defweak:
3604 return h->root.u.def.section;
c3668558 3605
252b5132
RH
3606 case bfd_link_hash_common:
3607 return h->root.u.c.p->section;
e049a0de
ILT
3608
3609 default:
3610 break;
252b5132
RH
3611 }
3612 }
3613 }
3614 else
1e2f5b6e
AM
3615 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
3616
252b5132
RH
3617 return NULL;
3618}
3619
b34976b6 3620static bfd_boolean
47b0e7ad
NC
3621m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3622 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3623 asection *sec ATTRIBUTE_UNUSED,
3624 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3625{
6edf0760
NC
3626 /* Update the got entry reference counts for the section being removed. */
3627 Elf_Internal_Shdr *symtab_hdr;
3628 struct elf_link_hash_entry **sym_hashes;
3629 bfd_signed_vma *local_got_refcounts;
3630 const Elf_Internal_Rela *rel, *relend;
6edf0760
NC
3631
3632 elf_section_data (sec)->local_dynrel = NULL;
3633
3634 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3635 sym_hashes = elf_sym_hashes (abfd);
3636 local_got_refcounts = elf_local_got_refcounts (abfd);
3637
3638 relend = relocs + sec->reloc_count;
3639 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM
3640 {
3641 unsigned long r_symndx;
3642 struct elf_link_hash_entry *h = NULL;
6edf0760 3643
3eb128b2
AM
3644 r_symndx = ELF32_R_SYM (rel->r_info);
3645 if (r_symndx >= symtab_hdr->sh_info)
3646 {
3647 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3648 while (h->root.type == bfd_link_hash_indirect
3649 || h->root.type == bfd_link_hash_warning)
3650 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3651 }
6edf0760 3652
3eb128b2
AM
3653 switch (ELF32_R_TYPE (rel->r_info))
3654 {
3655 case R_M32R_GOT16_HI_ULO:
3656 case R_M32R_GOT16_HI_SLO:
3657 case R_M32R_GOT16_LO:
3658 case R_M32R_GOTOFF:
3659 case R_M32R_GOTOFF_HI_ULO:
3660 case R_M32R_GOTOFF_HI_SLO:
3661 case R_M32R_GOTOFF_LO:
3662 case R_M32R_GOT24:
3663 case R_M32R_GOTPC_HI_ULO:
3664 case R_M32R_GOTPC_HI_SLO:
3665 case R_M32R_GOTPC_LO:
3666 case R_M32R_GOTPC24:
3667 if (h != NULL)
3668 {
3669 if (h->got.refcount > 0)
3670 h->got.refcount--;
3671 }
3672 else
3673 {
3674 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3675 local_got_refcounts[r_symndx]--;
3676 }
3677 break;
3678
3679 case R_M32R_16_RELA:
3680 case R_M32R_24_RELA:
3681 case R_M32R_32_RELA:
3682 case R_M32R_HI16_ULO_RELA:
3683 case R_M32R_HI16_SLO_RELA:
3684 case R_M32R_LO16_RELA:
3685 case R_M32R_SDA16_RELA:
3686 case R_M32R_18_PCREL_RELA:
3687 case R_M32R_26_PCREL_RELA:
3688 if (h != NULL)
3689 {
3690 struct elf_m32r_link_hash_entry *eh;
3691 struct elf_m32r_dyn_relocs **pp;
3692 struct elf_m32r_dyn_relocs *p;
6edf0760 3693
3eb128b2
AM
3694 if (!info->shared && h->plt.refcount > 0)
3695 h->plt.refcount -= 1;
6edf0760 3696
3eb128b2 3697 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3698
3eb128b2
AM
3699 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3700 if (p->sec == sec)
3701 {
3702 if (ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3703 || ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA)
3704 p->pc_count -= 1;
3705 p->count -= 1;
3706 if (p->count == 0)
3707 *pp = p->next;
3708 break;
3709 }
3710 }
3711 break;
6edf0760 3712
3eb128b2
AM
3713 case R_M32R_26_PLTREL:
3714 if (h != NULL)
3715 {
3716 if (h->plt.refcount > 0)
3717 h->plt.refcount--;
3718 }
3719 break;
6edf0760 3720
3eb128b2
AM
3721 default:
3722 break;
3723 }
3724 }
6edf0760 3725
b34976b6 3726 return TRUE;
252b5132
RH
3727}
3728
252b5132
RH
3729/* Look through the relocs for a section during the first phase.
3730 Since we don't do .gots or .plts, we just need to consider the
3731 virtual table relocs for gc. */
c3668558 3732
b34976b6 3733static bfd_boolean
47b0e7ad
NC
3734m32r_elf_check_relocs (bfd *abfd,
3735 struct bfd_link_info *info,
3736 asection *sec,
3737 const Elf_Internal_Rela *relocs)
252b5132
RH
3738{
3739 Elf_Internal_Shdr *symtab_hdr;
3740 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3741 const Elf_Internal_Rela *rel;
3742 const Elf_Internal_Rela *rel_end;
6edf0760
NC
3743 struct elf_m32r_link_hash_table *htab;
3744 bfd *dynobj;
3745 bfd_vma *local_got_offsets;
3746 asection *sgot, *srelgot, *sreloc;
c3668558 3747
1049f94e 3748 if (info->relocatable)
b34976b6 3749 return TRUE;
c3668558 3750
6edf0760
NC
3751 sgot = srelgot = sreloc = NULL;
3752
252b5132
RH
3753 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3754 sym_hashes = elf_sym_hashes (abfd);
c3668558 3755 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
252b5132
RH
3756 if (!elf_bad_symtab (abfd))
3757 sym_hashes_end -= symtab_hdr->sh_info;
c3668558 3758
6edf0760
NC
3759 htab = m32r_elf_hash_table (info);
3760 dynobj = htab->root.dynobj;
3761 local_got_offsets = elf_local_got_offsets (abfd);
3762
252b5132
RH
3763 rel_end = relocs + sec->reloc_count;
3764 for (rel = relocs; rel < rel_end; rel++)
3765 {
6edf0760 3766 int r_type;
252b5132
RH
3767 struct elf_link_hash_entry *h;
3768 unsigned long r_symndx;
c3668558 3769
252b5132 3770 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3771 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH
3772 if (r_symndx < symtab_hdr->sh_info)
3773 h = NULL;
3774 else
973a3492
L
3775 {
3776 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3777 while (h->root.type == bfd_link_hash_indirect
3778 || h->root.type == bfd_link_hash_warning)
3779 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3780 }
c3668558 3781
6edf0760
NC
3782 /* Some relocs require a global offset table. */
3783 if (htab->sgot == NULL)
3784 {
3785 switch (r_type)
3786 {
3787 case R_M32R_GOT16_HI_ULO:
3788 case R_M32R_GOT16_HI_SLO:
097f809a
NC
3789 case R_M32R_GOTOFF:
3790 case R_M32R_GOTOFF_HI_ULO:
3791 case R_M32R_GOTOFF_HI_SLO:
3792 case R_M32R_GOTOFF_LO:
6edf0760
NC
3793 case R_M32R_GOT16_LO:
3794 case R_M32R_GOTPC24:
3795 case R_M32R_GOTPC_HI_ULO:
3796 case R_M32R_GOTPC_HI_SLO:
3797 case R_M32R_GOTPC_LO:
3798 case R_M32R_GOT24:
3799 if (dynobj == NULL)
3800 htab->root.dynobj = dynobj = abfd;
3801 if (! create_got_section (dynobj, info))
3802 return FALSE;
3803 break;
3804
3805 default:
3806 break;
3807 }
3808 }
3809
3810 switch (r_type)
252b5132 3811 {
6edf0760
NC
3812 case R_M32R_GOT16_HI_ULO:
3813 case R_M32R_GOT16_HI_SLO:
41978308 3814 case R_M32R_GOT16_LO:
6edf0760
NC
3815 case R_M32R_GOT24:
3816
3817 if (h != NULL)
3818 h->got.refcount += 1;
3819 else
3820 {
3821 bfd_signed_vma *local_got_refcounts;
3822
3823 /* This is a global offset table entry for a local
3824 symbol. */
3825 local_got_refcounts = elf_local_got_refcounts (abfd);
3826 if (local_got_refcounts == NULL)
3827 {
3828 bfd_size_type size;
3829
3830 size = symtab_hdr->sh_info;
3831 size *= sizeof (bfd_signed_vma);
47b0e7ad 3832 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC
3833 if (local_got_refcounts == NULL)
3834 return FALSE;
3835 elf_local_got_refcounts (abfd) = local_got_refcounts;
3836 }
3837 local_got_refcounts[r_symndx] += 1;
3838 }
3839 break;
3840
3841 case R_M32R_26_PLTREL:
3842 /* This symbol requires a procedure linkage table entry. We
3843 actually build the entry in adjust_dynamic_symbol,
3844 because this might be a case of linking PIC code without
3845 linking in any dynamic objects, in which case we don't
3846 need to generate a procedure linkage table after all. */
41978308 3847
6edf0760
NC
3848 /* If this is a local symbol, we resolve it directly without
3849 creating a procedure linkage table entry. */
3850 if (h == NULL)
3851 continue;
3852
f5385ebf 3853 if (h->forced_local)
6edf0760
NC
3854 break;
3855
f5385ebf 3856 h->needs_plt = 1;
6edf0760
NC
3857 h->plt.refcount += 1;
3858 break;
3859
3860 case R_M32R_16_RELA:
3861 case R_M32R_24_RELA:
3862 case R_M32R_32_RELA:
3863 case R_M32R_HI16_ULO_RELA:
3864 case R_M32R_HI16_SLO_RELA:
3865 case R_M32R_LO16_RELA:
3866 case R_M32R_SDA16_RELA:
3867 case R_M32R_18_PCREL_RELA:
3868 case R_M32R_26_PCREL_RELA:
3869
3870 if (h != NULL && !info->shared)
3871 {
f5385ebf 3872 h->non_got_ref = 1;
6edf0760
NC
3873 h->plt.refcount += 1;
3874 }
3875
3876 /* If we are creating a shared library, and this is a reloc
3877 against a global symbol, or a non PC relative reloc
3878 against a local symbol, then we need to copy the reloc
3879 into the shared library. However, if we are linking with
3880 -Bsymbolic, we do not need to copy a reloc against a
3881 global symbol which is defined in an object we are
3882 including in the link (i.e., DEF_REGULAR is set). At
3883 this point we have not seen all the input files, so it is
3884 possible that DEF_REGULAR is not set now but will be set
3885 later (it is never cleared). We account for that
3886 possibility below by storing information in the
3887 dyn_relocs field of the hash table entry. A similar
3888 situation occurs when creating shared libraries and symbol
3889 visibility changes render the symbol local.
3890
3891 If on the other hand, we are creating an executable, we
3892 may need to keep relocations for symbols satisfied by a
3893 dynamic library if we manage to avoid copy relocs for the
3894 symbol. */
3895 if ((info->shared
3896 && (sec->flags & SEC_ALLOC) != 0
3897 && ((r_type != R_M32R_26_PCREL_RELA
3898 && r_type != R_M32R_18_PCREL_RELA)
3899 || (h != NULL
3900 && (! info->symbolic
3901 || h->root.type == bfd_link_hash_defweak
f5385ebf 3902 || !h->def_regular))))
6edf0760
NC
3903 || (!info->shared
3904 && (sec->flags & SEC_ALLOC) != 0
3905 && h != NULL
3906 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3907 || !h->def_regular)))
6edf0760
NC
3908 {
3909 struct elf_m32r_dyn_relocs *p;
3910 struct elf_m32r_dyn_relocs **head;
3911
3912 if (dynobj == NULL)
3913 htab->root.dynobj = dynobj = abfd;
3914
3915 /* When creating a shared object, we must copy these
3916 relocs into the output file. We create a reloc
3917 section in dynobj and make room for the reloc. */
3918 if (sreloc == NULL)
3919 {
3920 const char *name;
41978308 3921
6edf0760
NC
3922 name = (bfd_elf_string_from_elf_section
3923 (abfd,
3924 elf_elfheader (abfd)->e_shstrndx,
3925 elf_section_data (sec)->rel_hdr.sh_name));
3926 if (name == NULL)
3927 return FALSE;
41978308 3928
6edf0760
NC
3929 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
3930 && strcmp (bfd_get_section_name (abfd, sec),
3931 name + 5) == 0);
41978308 3932
6edf0760
NC
3933 sreloc = bfd_get_section_by_name (dynobj, name);
3934 if (sreloc == NULL)
3935 {
3936 flagword flags;
41978308 3937
6edf0760
NC
3938 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3939 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3940 if ((sec->flags & SEC_ALLOC) != 0)
3941 flags |= SEC_ALLOC | SEC_LOAD;
3496cb2a
L
3942 sreloc = bfd_make_section_with_flags (dynobj,
3943 name,
3944 flags);
6edf0760 3945 if (sreloc == NULL
6edf0760
NC
3946 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
3947 return FALSE;
3948 }
3949 elf_section_data (sec)->sreloc = sreloc;
3950 }
41978308 3951
6edf0760
NC
3952 /* If this is a global symbol, we count the number of
3953 relocations we need for this symbol. */
3954 if (h != NULL)
3955 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3956 else
3957 {
3958 asection *s;
3959
3960 /* Track dynamic relocs needed for local syms too. */
3961 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3962 sec, r_symndx);
3963 if (s == NULL)
3964 return FALSE;
3965
3966 head = ((struct elf_m32r_dyn_relocs **)
3967 &elf_section_data (s)->local_dynrel);
3968 }
3969
3970 p = *head;
3971 if (p == NULL || p->sec != sec)
3972 {
3973 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC
3974
3975 p = bfd_alloc (dynobj, amt);
6edf0760
NC
3976 if (p == NULL)
3977 return FALSE;
3978 p->next = *head;
3979 *head = p;
3980 p->sec = sec;
3981 p->count = 0;
3982 p->pc_count = 0;
3983 }
3984
3985 p->count += 1;
3986 if (ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3987 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA)
3988 p->pc_count += 1;
3989 }
3990 break;
3991
252b5132
RH
3992 /* This relocation describes the C++ object vtable hierarchy.
3993 Reconstruct it for later use during GC. */
6edf0760 3994 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 3995 case R_M32R_GNU_VTINHERIT:
c152c796 3996 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3997 return FALSE;
252b5132 3998 break;
c3668558 3999
252b5132
RH
4000 /* This relocation describes which C++ vtable entries are actually
4001 used. Record for later use during GC. */
4002 case R_M32R_GNU_VTENTRY:
c152c796 4003 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 4004 return FALSE;
252b5132 4005 break;
6edf0760 4006 case R_M32R_RELA_GNU_VTENTRY:
c152c796 4007 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC
4008 return FALSE;
4009 break;
252b5132
RH
4010 }
4011 }
c3668558 4012
b34976b6 4013 return TRUE;
252b5132 4014}
2f89ff8d 4015
b35d266b 4016static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 4017{
7dcb9820 4018 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
551b43fd
AM
4019 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4020 { NULL, 0, 0, 0, 0 }
7f4d3958
L
4021};
4022
6edf0760 4023static bfd_boolean
47b0e7ad
NC
4024m32r_elf_fake_sections (bfd *abfd,
4025 Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED,
4026 asection *sec)
6edf0760 4027{
47b0e7ad 4028 const char *name;
6edf0760
NC
4029
4030 name = bfd_get_section_name (abfd, sec);
4031
4032 /* The generic elf_fake_sections will set up REL_HDR using the
4033 default kind of relocations. But, we may actually need both
4034 kinds of relocations, so we set up the second header here.
4035
4036 This is not necessary for the O32 ABI since that only uses Elf32_Rel
4037 relocations (cf. System V ABI, MIPS RISC Processor Supplement,
4038 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
4039 of the resulting empty .rela.<section> sections starts with
4040 sh_offset == object size, and ld doesn't allow that. While the check
4041 is arguably bogus for empty or SHT_NOBITS sections, it can easily be
4042 avoided by not emitting those useless sections in the first place. */
4043 if ((sec->flags & SEC_RELOC) != 0)
4044 {
4045 struct bfd_elf_section_data *esd;
4046 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
4047
4048 esd = elf_section_data (sec);
4049 BFD_ASSERT (esd->rel_hdr2 == NULL);
47b0e7ad 4050 esd->rel_hdr2 = bfd_zalloc (abfd, amt);
6edf0760
NC
4051 if (!esd->rel_hdr2)
4052 return FALSE;
4053 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
4054 !sec->use_rela_p);
4055 }
4056
4057 return TRUE;
4058}
4059
4060static enum elf_reloc_type_class
47b0e7ad 4061m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
6edf0760
NC
4062{
4063 switch ((int) ELF32_R_TYPE (rela->r_info))
4064 {
47b0e7ad
NC
4065 case R_M32R_RELATIVE: return reloc_class_relative;
4066 case R_M32R_JMP_SLOT: return reloc_class_plt;
4067 case R_M32R_COPY: return reloc_class_copy;
4068 default: return reloc_class_normal;
6edf0760
NC
4069 }
4070}
252b5132 4071\f
252b5132 4072#define ELF_ARCH bfd_arch_m32r
aa4f99bb
AO
4073#define ELF_MACHINE_CODE EM_M32R
4074#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4075#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132
RH
4076
4077#define TARGET_BIG_SYM bfd_elf32_m32r_vec
4078#define TARGET_BIG_NAME "elf32-m32r"
6edf0760
NC
4079#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4080#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4081
6edf0760 4082#define elf_info_to_howto m32r_info_to_howto
252b5132
RH
4083#define elf_info_to_howto_rel m32r_info_to_howto_rel
4084#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4085#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4086#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4087#define elf_backend_relocate_section m32r_elf_relocate_section
4088#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4089#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4090#define elf_backend_check_relocs m32r_elf_check_relocs
4091
6edf0760
NC
4092#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4093#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4094#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4095#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4096#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4097#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4098#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4099#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4100
252b5132 4101#define elf_backend_can_gc_sections 1
6edf0760 4102/*#if !USE_REL
b491616a 4103#define elf_backend_rela_normal 1
6edf0760
NC
4104#endif*/
4105#define elf_backend_can_refcount 1
4106#define elf_backend_want_got_plt 1
4107#define elf_backend_plt_readonly 1
4108#define elf_backend_want_plt_sym 0
4109#define elf_backend_got_header_size 12
4110
4111#define elf_backend_may_use_rel_p 1
4112#ifdef USE_M32R_OLD_RELOC
4113#define elf_backend_default_use_rela_p 0
4114#define elf_backend_may_use_rela_p 0
4115#else
4116#define elf_backend_default_use_rela_p 1
4117#define elf_backend_may_use_rela_p 1
4118#define elf_backend_fake_sections m32r_elf_fake_sections
b491616a 4119#endif
6edf0760 4120
252b5132
RH
4121#define elf_backend_object_p m32r_elf_object_p
4122#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH
4123#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4124#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4125#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4126#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4127
252b5132 4128#include "elf32-target.h"
6edf0760 4129
47b0e7ad 4130#undef ELF_MAXPAGESIZE
6edf0760
NC
4131#define ELF_MAXPAGESIZE 0x1000
4132
47b0e7ad 4133#undef TARGET_BIG_SYM
6edf0760 4134#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
47b0e7ad 4135#undef TARGET_BIG_NAME
6edf0760 4136#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4137#undef TARGET_LITTLE_SYM
6edf0760 4138#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
47b0e7ad 4139#undef TARGET_LITTLE_NAME
6edf0760 4140#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4141#undef elf32_bed
6edf0760
NC
4142#define elf32_bed elf32_m32r_lin_bed
4143
4144#include "elf32-target.h"
4145
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