PR ld/1540
[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
157e7bd1
NC
880 /* A 32 bit PC relative relocation. */
881 HOWTO (R_M32R_REL32, /* type */
882 0, /* rightshift */
883 2, /* size (0 = byte, 1 = short, 2 = long) */
884 32, /* bitsize */
885 TRUE, /* pc_relative */
886 0, /* bitpos */
887 complain_overflow_bitfield, /* complain_on_overflow */
888 bfd_elf_generic_reloc,/* special_function */
889 "R_M32R_REL32", /* name */
890 FALSE, /* partial_inplace */
891 0xffffffff, /* src_mask */
892 0xffffffff, /* dst_mask */
893 TRUE), /* pcrel_offset */
894
47b0e7ad
NC
895 EMPTY_HOWTO (46),
896 EMPTY_HOWTO (47),
252b5132 897
47b0e7ad
NC
898 /* Like R_M32R_24, but referring to the GOT table entry for
899 the symbol. */
900 HOWTO (R_M32R_GOT24, /* type */
901 0, /* rightshift */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
903 24, /* bitsize */
904 FALSE, /* pc_relative */
905 0, /* bitpos */
906 complain_overflow_unsigned, /* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_M32R_GOT24", /* name */
909 FALSE, /* partial_inplace */
910 0xffffff, /* src_mask */
911 0xffffff, /* dst_mask */
912 FALSE), /* pcrel_offset */
8b125cde 913
47b0e7ad
NC
914 /* Like R_M32R_PCREL, but referring to the procedure linkage table
915 entry for the symbol. */
916 HOWTO (R_M32R_26_PLTREL, /* type */
917 2, /* rightshift */
918 2, /* size (0 = byte, 1 = short, 2 = long) */
919 24, /* bitsize */
920 TRUE, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_signed, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_M32R_26_PLTREL", /* name */
925 FALSE, /* partial_inplace */
926 0xffffff, /* src_mask */
927 0xffffff, /* dst_mask */
928 TRUE), /* pcrel_offset */
8b125cde 929
47b0e7ad
NC
930 /* This is used only by the dynamic linker. The symbol should exist
931 both in the object being run and in some shared library. The
932 dynamic linker copies the data addressed by the symbol from the
933 shared library into the object, because the object being
934 run has to have the data at some particular address. */
935 HOWTO (R_M32R_COPY, /* type */
936 0, /* rightshift */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
938 32, /* bitsize */
939 FALSE, /* pc_relative */
940 0, /* bitpos */
941 complain_overflow_bitfield, /* complain_on_overflow */
942 bfd_elf_generic_reloc, /* special_function */
943 "R_M32R_COPY", /* name */
944 FALSE, /* partial_inplace */
945 0xffffffff, /* src_mask */
946 0xffffffff, /* dst_mask */
947 FALSE), /* pcrel_offset */
8b125cde 948
47b0e7ad
NC
949 /* Like R_M32R_24, but used when setting global offset table
950 entries. */
951 HOWTO (R_M32R_GLOB_DAT, /* type */
952 0, /* rightshift */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
954 32, /* bitsize */
955 FALSE, /* pc_relative */
956 0, /* bitpos */
957 complain_overflow_bitfield, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_M32R_GLOB_DAT", /* name */
960 FALSE, /* partial_inplace */
961 0xffffffff, /* src_mask */
962 0xffffffff, /* dst_mask */
963 FALSE), /* pcrel_offset */
8b125cde 964
47b0e7ad
NC
965 /* Marks a procedure linkage table entry for a symbol. */
966 HOWTO (R_M32R_JMP_SLOT, /* type */
967 0, /* rightshift */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
969 32, /* bitsize */
970 FALSE, /* pc_relative */
971 0, /* bitpos */
972 complain_overflow_bitfield, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_M32R_JMP_SLOT", /* name */
975 FALSE, /* partial_inplace */
976 0xffffffff, /* src_mask */
977 0xffffffff, /* dst_mask */
978 FALSE), /* pcrel_offset */
4c72e23a 979
47b0e7ad
NC
980 /* Used only by the dynamic linker. When the object is run, this
981 longword is set to the load address of the object, plus the
982 addend. */
983 HOWTO (R_M32R_RELATIVE, /* type */
984 0, /* rightshift */
985 2, /* size (0 = byte, 1 = short, 2 = long) */
986 32, /* bitsize */
987 FALSE, /* pc_relative */
988 0, /* bitpos */
989 complain_overflow_bitfield, /* complain_on_overflow */
990 bfd_elf_generic_reloc, /* special_function */
991 "R_M32R_RELATIVE", /* name */
992 FALSE, /* partial_inplace */
993 0xffffffff, /* src_mask */
994 0xffffffff, /* dst_mask */
995 FALSE), /* pcrel_offset */
4c72e23a 996
47b0e7ad
NC
997 HOWTO (R_M32R_GOTOFF, /* type */
998 0, /* rightshift */
999 2, /* size (0 = byte, 1 = short, 2 = long) */
1000 24, /* bitsize */
1001 FALSE, /* pc_relative */
1002 0, /* bitpos */
1003 complain_overflow_bitfield, /* complain_on_overflow */
1004 bfd_elf_generic_reloc, /* special_function */
1005 "R_M32R_GOTOFF", /* name */
1006 FALSE, /* partial_inplace */
1007 0xffffff, /* src_mask */
1008 0xffffff, /* dst_mask */
1009 FALSE), /* pcrel_offset */
4c72e23a 1010
47b0e7ad
NC
1011 /* An PC Relative 24-bit relocation used when setting PIC offset
1012 table register. */
1013 HOWTO (R_M32R_GOTPC24, /* type */
1014 0, /* rightshift */
1015 2, /* size (0 = byte, 1 = short, 2 = long) */
1016 24, /* bitsize */
1017 TRUE, /* pc_relative */
1018 0, /* bitpos */
1019 complain_overflow_unsigned, /* complain_on_overflow */
1020 bfd_elf_generic_reloc, /* special_function */
1021 "R_M32R_GOTPC24", /* name */
1022 FALSE, /* partial_inplace */
1023 0xffffff, /* src_mask */
1024 0xffffff, /* dst_mask */
1025 TRUE), /* pcrel_offset */
4c72e23a 1026
47b0e7ad
NC
1027 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1028 the symbol. */
1029 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1030 16, /* rightshift */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1032 16, /* bitsize */
1033 FALSE, /* pc_relative */
1034 0, /* bitpos */
1035 complain_overflow_dont, /* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* special_function */
1037 "R_M32R_GOT16_HI_ULO", /* name */
1038 FALSE, /* partial_inplace */
1039 0x0000ffff, /* src_mask */
1040 0x0000ffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
4c72e23a 1042
47b0e7ad
NC
1043 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1044 the symbol. */
1045 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1046 16, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 FALSE, /* pc_relative */
1050 0, /* bitpos */
1051 complain_overflow_dont, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_M32R_GOT16_HI_SLO", /* name */
1054 FALSE, /* partial_inplace */
1055 0x0000ffff, /* src_mask */
1056 0x0000ffff, /* dst_mask */
1057 FALSE), /* pcrel_offset */
8b125cde 1058
47b0e7ad
NC
1059 /* Like R_M32R_LO16, but referring to the GOT table entry for
1060 the symbol. */
1061 HOWTO (R_M32R_GOT16_LO, /* type */
1062 0, /* rightshift */
1063 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 16, /* bitsize */
1065 FALSE, /* pc_relative */
1066 0, /* bitpos */
1067 complain_overflow_dont, /* complain_on_overflow */
1068 bfd_elf_generic_reloc, /* special_function */
1069 "R_M32R_GOT16_LO", /* name */
1070 FALSE, /* partial_inplace */
1071 0x0000ffff, /* src_mask */
1072 0x0000ffff, /* dst_mask */
1073 FALSE), /* pcrel_offset */
4c72e23a 1074
47b0e7ad
NC
1075 /* An PC Relative relocation used when setting PIC offset table register.
1076 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1077 the symbol. */
1078 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1079 16, /* rightshift */
1080 2, /* size (0 = byte, 1 = short, 2 = long) */
1081 16, /* bitsize */
1082 FALSE, /* pc_relative */
1083 0, /* bitpos */
1084 complain_overflow_dont, /* complain_on_overflow */
1085 bfd_elf_generic_reloc, /* special_function */
1086 "R_M32R_GOTPC_HI_ULO", /* name */
1087 FALSE, /* partial_inplace */
1088 0x0000ffff, /* src_mask */
1089 0x0000ffff, /* dst_mask */
1090 TRUE), /* pcrel_offset */
4c72e23a 1091
47b0e7ad
NC
1092 /* An PC Relative relocation used when setting PIC offset table register.
1093 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1094 the symbol. */
1095 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1096 16, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 bfd_elf_generic_reloc, /* special_function */
1103 "R_M32R_GOTPC_HI_SLO", /* name */
1104 FALSE, /* partial_inplace */
1105 0x0000ffff, /* src_mask */
1106 0x0000ffff, /* dst_mask */
1107 TRUE), /* pcrel_offset */
4c72e23a 1108
47b0e7ad
NC
1109 /* An PC Relative relocation used when setting PIC offset table register.
1110 Like R_M32R_LO16, but referring to the GOT table entry for
1111 the symbol. */
1112 HOWTO (R_M32R_GOTPC_LO, /* type */
1113 0, /* rightshift */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1115 16, /* bitsize */
1116 FALSE, /* pc_relative */
1117 0, /* bitpos */
1118 complain_overflow_dont, /* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_M32R_GOTPC_LO", /* name */
1121 FALSE, /* partial_inplace */
1122 0x0000ffff, /* src_mask */
1123 0x0000ffff, /* dst_mask */
1124 TRUE), /* pcrel_offset */
252b5132 1125
47b0e7ad
NC
1126 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1127 16, /* rightshift */
1128 2, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 bfd_elf_generic_reloc, /* special_function */
1134 "R_M32R_GOTOFF_HI_ULO",/* name */
1135 FALSE, /* partial_inplace */
1136 0x0000ffff, /* src_mask */
1137 0x0000ffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
252b5132 1139
47b0e7ad
NC
1140 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1141 16, /* rightshift */
1142 2, /* size (0 = byte, 1 = short, 2 = long) */
1143 16, /* bitsize */
1144 FALSE, /* pc_relative */
1145 0, /* bitpos */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 bfd_elf_generic_reloc, /* special_function */
1148 "R_M32R_GOTOFF_HI_SLO",/* name */
1149 FALSE, /* partial_inplace */
1150 0x0000ffff, /* src_mask */
1151 0x0000ffff, /* dst_mask */
1152 FALSE), /* pcrel_offset */
252b5132 1153
47b0e7ad
NC
1154 HOWTO (R_M32R_GOTOFF_LO, /* type */
1155 0, /* rightshift */
1156 2, /* size (0 = byte, 1 = short, 2 = long) */
1157 16, /* bitsize */
1158 FALSE, /* pc_relative */
1159 0, /* bitpos */
1160 complain_overflow_dont, /* complain_on_overflow */
1161 bfd_elf_generic_reloc, /* special_function */
1162 "R_M32R_GOTOFF_LO", /* name */
1163 FALSE, /* partial_inplace */
1164 0x0000ffff, /* src_mask */
1165 0x0000ffff, /* dst_mask */
1166 FALSE), /* pcrel_offset */
1167};
252b5132 1168
252b5132
RH
1169/* Map BFD reloc types to M32R ELF reloc types. */
1170
1171struct m32r_reloc_map
1172{
1173 bfd_reloc_code_real_type bfd_reloc_val;
1174 unsigned char elf_reloc_val;
1175};
1176
d5b2f13b 1177#ifdef USE_M32R_OLD_RELOC
6edf0760 1178static const struct m32r_reloc_map m32r_reloc_map_old[] =
252b5132
RH
1179{
1180 { BFD_RELOC_NONE, R_M32R_NONE },
1181 { BFD_RELOC_16, R_M32R_16 },
1182 { BFD_RELOC_32, R_M32R_32 },
1183 { BFD_RELOC_M32R_24, R_M32R_24 },
1184 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1185 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1186 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1187 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1188 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1189 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1190 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1191 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1192 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1193};
d5b2f13b 1194#else
6edf0760
NC
1195static const struct m32r_reloc_map m32r_reloc_map[] =
1196{
1197 { BFD_RELOC_NONE, R_M32R_NONE },
1198 { BFD_RELOC_16, R_M32R_16_RELA },
1199 { BFD_RELOC_32, R_M32R_32_RELA },
1200 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1201 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1202 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1203 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1204 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1205 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1206 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1207 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1208 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1209 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
157e7bd1 1210 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
41978308 1211
6edf0760
NC
1212 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1213 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1214 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1215 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1216 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1217 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1218 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1219 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1220 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1221 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1222 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1223 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1224 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1225 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
097f809a
NC
1226 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1227 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1228 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
6edf0760 1229};
d5b2f13b 1230#endif
6edf0760 1231
252b5132 1232static reloc_howto_type *
47b0e7ad
NC
1233bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1234 bfd_reloc_code_real_type code)
252b5132
RH
1235{
1236 unsigned int i;
1237
6edf0760
NC
1238#ifdef USE_M32R_OLD_RELOC
1239 for (i = 0;
1240 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1241 i++)
47b0e7ad
NC
1242 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1243 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1244
6edf0760
NC
1245#else /* ! USE_M32R_OLD_RELOC */
1246
252b5132
RH
1247 for (i = 0;
1248 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1249 i++)
47b0e7ad
NC
1250 if (m32r_reloc_map[i].bfd_reloc_val == code)
1251 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
6edf0760 1252#endif
252b5132
RH
1253
1254 return NULL;
1255}
1256
1257/* Set the howto pointer for an M32R ELF reloc. */
1258
1259static void
47b0e7ad
NC
1260m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1261 arelent *cache_ptr,
1262 Elf_Internal_Rela *dst)
252b5132
RH
1263{
1264 unsigned int r_type;
1265
1266 r_type = ELF32_R_TYPE (dst->r_info);
f12123c0 1267 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY);
252b5132
RH
1268 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1269}
6edf0760
NC
1270
1271static void
47b0e7ad
NC
1272m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1273 arelent *cache_ptr,
1274 Elf_Internal_Rela *dst)
6edf0760
NC
1275{
1276 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1277 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1278 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1279 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1280}
1281
252b5132
RH
1282\f
1283/* Given a BFD section, try to locate the corresponding ELF section
1284 index. */
1285
47b0e7ad
NC
1286static bfd_boolean
1287_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1288 asection *sec,
1289 int *retval)
252b5132
RH
1290{
1291 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1292 {
1293 *retval = SHN_M32R_SCOMMON;
b34976b6 1294 return TRUE;
252b5132 1295 }
b34976b6 1296 return FALSE;
252b5132
RH
1297}
1298
1299/* M32R ELF uses two common sections. One is the usual one, and the other
1300 is for small objects. All the small objects are kept together, and then
1301 referenced via one register, which yields faster assembler code. It is
1302 up to the compiler to emit an instruction to load the register with
1303 _SDA_BASE. This is what we use for the small common section. This
1304 approach is copied from elf32-mips.c. */
1305static asection m32r_elf_scom_section;
1306static asymbol m32r_elf_scom_symbol;
1307static asymbol *m32r_elf_scom_symbol_ptr;
1308
1309/* Handle the special M32R section numbers that a symbol may use. */
1310
47b0e7ad
NC
1311static void
1312_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1313{
47b0e7ad 1314 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH
1315
1316 switch (elfsym->internal_elf_sym.st_shndx)
1317 {
1318 case SHN_M32R_SCOMMON:
1319 if (m32r_elf_scom_section.name == NULL)
1320 {
1321 /* Initialize the small common section. */
1322 m32r_elf_scom_section.name = ".scommon";
1323 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1324 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1325 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1326 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1327 m32r_elf_scom_symbol.name = ".scommon";
1328 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1329 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1330 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1331 }
1332 asym->section = &m32r_elf_scom_section;
1333 asym->value = elfsym->internal_elf_sym.st_size;
1334 break;
1335 }
1336}
1337
1338/* Hook called by the linker routine which adds symbols from an object
1339 file. We must handle the special M32R section numbers here.
1340 We also keep watching for whether we need to create the sdata special
1341 linker sections. */
1342
b34976b6 1343static bfd_boolean
47b0e7ad
NC
1344m32r_elf_add_symbol_hook (bfd *abfd,
1345 struct bfd_link_info *info,
1346 Elf_Internal_Sym *sym,
1347 const char **namep,
1348 flagword *flagsp ATTRIBUTE_UNUSED,
1349 asection **secp,
1350 bfd_vma *valp)
252b5132 1351{
1049f94e 1352 if (! info->relocatable
252b5132 1353 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1354 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1355 && is_elf_hash_table (info->hash))
252b5132
RH
1356 {
1357 /* This is simpler than using _bfd_elf_create_linker_section
1358 (our needs are simpler than ppc's needs). Also
1359 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1360 section already exists a new one is created that follows it which
1361 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1362 struct elf_link_hash_entry *h;
14a793b2 1363 struct bfd_link_hash_entry *bh;
252b5132
RH
1364 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1365
6edf0760 1366 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC
1367 if (s == NULL)
1368 {
1369 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1370 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1371
3496cb2a
L
1372 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1373 flags);
6edf0760
NC
1374 if (s == NULL)
1375 return FALSE;
6edf0760
NC
1376 bfd_set_section_alignment (abfd, s, 2);
1377 }
1378
1379 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1380 FALSE, FALSE, FALSE);
1381
1382 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1383 && !(_bfd_generic_link_add_one_symbol (info,
1384 abfd,
1385 "_SDA_BASE_",
1386 BSF_GLOBAL,
1387 s,
1388 (bfd_vma) 32768,
47b0e7ad 1389 NULL,
6edf0760
NC
1390 FALSE,
1391 get_elf_backend_data (abfd)->collect,
1392 &bh)))
1393 return FALSE;
1394 h = (struct elf_link_hash_entry *) bh;
1395 h->type = STT_OBJECT;
1396 }
1397
1398 switch (sym->st_shndx)
1399 {
1400 case SHN_M32R_SCOMMON:
1401 *secp = bfd_make_section_old_way (abfd, ".scommon");
1402 (*secp)->flags |= SEC_IS_COMMON;
1403 *valp = sym->st_size;
1404 break;
1405 }
1406
1407 return TRUE;
1408}
1409
1410/* We have to figure out the SDA_BASE value, so that we can adjust the
1411 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1412 BFD. If we can't find it, we're stuck. We cache it in the ELF
1413 target data. We don't need to adjust the symbol value for an
1414 external symbol if we are producing relocatable output. */
1415
1416static bfd_reloc_status_type
47b0e7ad
NC
1417m32r_elf_final_sda_base (bfd *output_bfd,
1418 struct bfd_link_info *info,
1419 const char **error_message,
1420 bfd_vma *psb)
6edf0760
NC
1421{
1422 if (elf_gp (output_bfd) == 0)
1423 {
1424 struct bfd_link_hash_entry *h;
1425
1426 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1427 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC
1428 elf_gp (output_bfd) = (h->u.def.value
1429 + h->u.def.section->output_section->vma
1430 + h->u.def.section->output_offset);
1431 else
1432 {
1433 /* Only get the error once. */
1434 *psb = elf_gp (output_bfd) = 4;
1435 *error_message =
1436 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1437 return bfd_reloc_dangerous;
1438 }
1439 }
1440 *psb = elf_gp (output_bfd);
1441 return bfd_reloc_ok;
1442}
1443\f
1444/* Return size of a PLT entry. */
1445#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1446
1447/* The m32r linker needs to keep track of the number of relocs that it
1448 decides to copy in check_relocs for each symbol. This is so that
1449 it can discard PC relative relocs if it doesn't need them when
1450 linking with -Bsymbolic. We store the information in a field
1451 extending the regular ELF linker hash table. */
1452
1453/* This structure keeps track of the number of PC relative relocs we
1454 have copied for a given symbol. */
1455
1456struct elf_m32r_pcrel_relocs_copied
1457{
1458 /* Next section. */
1459 struct elf_m32r_pcrel_relocs_copied *next;
1460 /* A section in dynobj. */
1461 asection *section;
1462 /* Number of relocs copied in this section. */
1463 bfd_size_type count;
1464};
1465
1466/* The sh linker needs to keep track of the number of relocs that it
1467 decides to copy as dynamic relocs in check_relocs for each symbol.
1468 This is so that it can later discard them if they are found to be
1469 unnecessary. We store the information in a field extending the
1470 regular ELF linker hash table. */
1471
1472struct elf_m32r_dyn_relocs
1473{
1474 struct elf_m32r_dyn_relocs *next;
1475
1476 /* The input section of the reloc. */
1477 asection *sec;
1478
1479 /* Total number of relocs copied for the input section. */
1480 bfd_size_type count;
1481
1482 /* Number of pc-relative relocs copied for the input section. */
1483 bfd_size_type pc_count;
1484};
1485
1486
1487/* m32r ELF linker hash entry. */
1488
1489struct elf_m32r_link_hash_entry
1490{
1491 struct elf_link_hash_entry root;
1492
1493 /* Track dynamic relocs copied for this symbol. */
1494 struct elf_m32r_dyn_relocs *dyn_relocs;
6edf0760
NC
1495};
1496
1497/* m32r ELF linker hash table. */
1498
1499struct elf_m32r_link_hash_table
1500{
1501 struct elf_link_hash_table root;
1502
1503 /* Short-cuts to get to dynamic linker sections. */
1504 asection *sgot;
1505 asection *sgotplt;
1506 asection *srelgot;
1507 asection *splt;
1508 asection *srelplt;
1509 asection *sdynbss;
1510 asection *srelbss;
1511
1512 /* Small local sym to section mapping cache. */
1513 struct sym_sec_cache sym_sec;
1514};
1515
1516/* Traverse an m32r ELF linker hash table. */
1517
1518#define m32r_elf_link_hash_traverse(table, func, info) \
1519 (elf_link_hash_traverse \
1520 (&(table)->root, \
47b0e7ad 1521 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC
1522 (info)))
1523
1524/* Get the m32r ELF linker hash table from a link_info structure. */
1525
1526
1527#define m32r_elf_hash_table(p) \
1528 ((struct elf_m32r_link_hash_table *) ((p)->hash))
1529
1530/* Create an entry in an m32r ELF linker hash table. */
6edf0760
NC
1531
1532static struct bfd_hash_entry *
47b0e7ad
NC
1533m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1534 struct bfd_hash_table *table,
1535 const char *string)
6edf0760
NC
1536{
1537 struct elf_m32r_link_hash_entry *ret =
1538 (struct elf_m32r_link_hash_entry *) entry;
41978308 1539
6edf0760
NC
1540 /* Allocate the structure if it has not already been allocated by a
1541 subclass. */
47b0e7ad
NC
1542 if (ret == NULL)
1543 ret = bfd_hash_allocate (table,
1544 sizeof (struct elf_m32r_link_hash_entry));
1545 if (ret == NULL)
1546 return NULL;
41978308 1547
6edf0760
NC
1548 /* Call the allocation method of the superclass. */
1549 ret = ((struct elf_m32r_link_hash_entry *)
1550 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1551 table, string));
47b0e7ad 1552 if (ret != NULL)
6edf0760
NC
1553 {
1554 struct elf_m32r_link_hash_entry *eh;
41978308 1555
6edf0760
NC
1556 eh = (struct elf_m32r_link_hash_entry *) ret;
1557 eh->dyn_relocs = NULL;
6edf0760 1558 }
41978308 1559
6edf0760
NC
1560 return (struct bfd_hash_entry *) ret;
1561}
1562
1563/* Create an m32r ELF linker hash table. */
6edf0760
NC
1564
1565static struct bfd_link_hash_table *
47b0e7ad 1566m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760
NC
1567{
1568 struct elf_m32r_link_hash_table *ret;
1569 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
41978308 1570
47b0e7ad
NC
1571 ret = bfd_malloc (amt);
1572 if (ret == NULL)
6edf0760 1573 return NULL;
41978308 1574
6edf0760
NC
1575 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
1576 m32r_elf_link_hash_newfunc))
1577 {
1578 free (ret);
1579 return NULL;
1580 }
41978308 1581
6edf0760
NC
1582 ret->sgot = NULL;
1583 ret->sgotplt = NULL;
1584 ret->srelgot = NULL;
1585 ret->splt = NULL;
1586 ret->srelplt = NULL;
1587 ret->sdynbss = NULL;
1588 ret->srelbss = NULL;
1589 ret->sym_sec.abfd = NULL;
41978308 1590
6edf0760
NC
1591 return &ret->root.root;
1592}
1593
1594/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1595 shortcuts to them in our hash table. */
6edf0760
NC
1596
1597static bfd_boolean
47b0e7ad 1598create_got_section (bfd *dynobj, struct bfd_link_info *info)
6edf0760
NC
1599{
1600 struct elf_m32r_link_hash_table *htab;
1601
1602 if (! _bfd_elf_create_got_section (dynobj, info))
1603 return FALSE;
1604
1605 htab = m32r_elf_hash_table (info);
1606 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1607 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1608 if (! htab->sgot || ! htab->sgotplt)
1609 abort ();
1610
3496cb2a
L
1611 htab->srelgot = bfd_make_section_with_flags (dynobj, ".rela.got",
1612 (SEC_ALLOC
1613 | SEC_LOAD
1614 | SEC_HAS_CONTENTS
1615 | SEC_IN_MEMORY
1616 | SEC_LINKER_CREATED
1617 | SEC_READONLY));
6edf0760 1618 if (htab->srelgot == NULL
6edf0760
NC
1619 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
1620 return FALSE;
1621
1622 return TRUE;
1623}
1624
1625/* Create dynamic sections when linking against a dynamic object. */
1626
1627static bfd_boolean
47b0e7ad 1628m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760
NC
1629{
1630 struct elf_m32r_link_hash_table *htab;
1631 flagword flags, pltflags;
47b0e7ad 1632 asection *s;
6edf0760
NC
1633 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1634 int ptralign = 2; /* 32bit */
1635
1636 htab = m32r_elf_hash_table (info);
1637
1638 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1639 .rel[a].bss sections. */
6edf0760
NC
1640 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1641 | SEC_LINKER_CREATED);
1642
1643 pltflags = flags;
1644 pltflags |= SEC_CODE;
1645 if (bed->plt_not_loaded)
1646 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1647 if (bed->plt_readonly)
1648 pltflags |= SEC_READONLY;
1649
3496cb2a 1650 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
6edf0760
NC
1651 htab->splt = s;
1652 if (s == NULL
6edf0760
NC
1653 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1654 return FALSE;
1655
1656 if (bed->want_plt_sym)
1657 {
1658 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1659 .plt section. */
41978308
AM
1660 struct bfd_link_hash_entry *bh = NULL;
1661 struct elf_link_hash_entry *h;
47b0e7ad 1662
6edf0760
NC
1663 if (! (_bfd_generic_link_add_one_symbol
1664 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
47b0e7ad 1665 (bfd_vma) 0, NULL, FALSE,
41978308 1666 get_elf_backend_data (abfd)->collect, &bh)))
6edf0760 1667 return FALSE;
41978308 1668 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1669 h->def_regular = 1;
6edf0760
NC
1670 h->type = STT_OBJECT;
1671
1672 if (info->shared
c152c796 1673 && ! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
1674 return FALSE;
1675 }
1676
3496cb2a
L
1677 s = bfd_make_section_with_flags (abfd,
1678 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
1679 flags | SEC_READONLY);
6edf0760
NC
1680 htab->srelplt = s;
1681 if (s == NULL
6edf0760
NC
1682 || ! bfd_set_section_alignment (abfd, s, ptralign))
1683 return FALSE;
1684
1685 if (htab->sgot == NULL
1686 && ! create_got_section (abfd, info))
1687 return FALSE;
1688
1689 {
1690 const char *secname;
1691 char *relname;
1692 flagword secflags;
1693 asection *sec;
1694
1695 for (sec = abfd->sections; sec; sec = sec->next)
1696 {
1697 secflags = bfd_get_section_flags (abfd, sec);
1698 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
1699 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
1700 continue;
1701 secname = bfd_get_section_name (abfd, sec);
47b0e7ad 1702 relname = bfd_malloc ((bfd_size_type) strlen (secname) + 6);
6edf0760
NC
1703 strcpy (relname, ".rela");
1704 strcat (relname, secname);
1705 if (bfd_get_section_by_name (abfd, secname))
1706 continue;
3496cb2a
L
1707 s = bfd_make_section_with_flags (abfd, relname,
1708 flags | SEC_READONLY);
6edf0760 1709 if (s == NULL
6edf0760
NC
1710 || ! bfd_set_section_alignment (abfd, s, ptralign))
1711 return FALSE;
1712 }
1713 }
1714
1715 if (bed->want_dynbss)
1716 {
1717 /* The .dynbss section is a place to put symbols which are defined
1718 by dynamic objects, are referenced by regular objects, and are
1719 not functions. We must allocate space for them in the process
1720 image and use a R_*_COPY reloc to tell the dynamic linker to
1721 initialize them at run time. The linker script puts the .dynbss
1722 section into the .bss section of the final image. */
3496cb2a
L
1723 s = bfd_make_section_with_flags (abfd, ".dynbss",
1724 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1725 htab->sdynbss = s;
3496cb2a 1726 if (s == NULL)
6edf0760
NC
1727 return FALSE;
1728 /* The .rel[a].bss section holds copy relocs. This section is not
1729 normally needed. We need to create it here, though, so that the
1730 linker will map it to an output section. We can't just create it
1731 only if we need it, because we will not know whether we need it
1732 until we have seen all the input files, and the first time the
1733 main linker code calls BFD after examining all the input files
1734 (size_dynamic_sections) the input sections have already been
1735 mapped to the output sections. If the section turns out not to
1736 be needed, we can discard it later. We will never need this
1737 section when generating a shared object, since they do not use
1738 copy relocs. */
1739 if (! info->shared)
1740 {
3496cb2a
L
1741 s = bfd_make_section_with_flags (abfd,
1742 (bed->default_use_rela_p
1743 ? ".rela.bss" : ".rel.bss"),
1744 flags | SEC_READONLY);
6edf0760
NC
1745 htab->srelbss = s;
1746 if (s == NULL
6edf0760
NC
1747 || ! bfd_set_section_alignment (abfd, s, ptralign))
1748 return FALSE;
1749 }
1750 }
1751
1752 return TRUE;
1753}
1754
1755/* Copy the extra info we tack onto an elf_link_hash_entry. */
41978308 1756
6edf0760 1757static void
fcfa13d2 1758m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
6edf0760
NC
1759 struct elf_link_hash_entry *dir,
1760 struct elf_link_hash_entry *ind)
1761{
47b0e7ad
NC
1762 struct elf_m32r_link_hash_entry * edir;
1763 struct elf_m32r_link_hash_entry * eind;
41978308 1764
6edf0760
NC
1765 edir = (struct elf_m32r_link_hash_entry *) dir;
1766 eind = (struct elf_m32r_link_hash_entry *) ind;
41978308 1767
6edf0760
NC
1768 if (eind->dyn_relocs != NULL)
1769 {
1770 if (edir->dyn_relocs != NULL)
1771 {
1772 struct elf_m32r_dyn_relocs **pp;
1773 struct elf_m32r_dyn_relocs *p;
41978308 1774
fcfa13d2 1775 /* Add reloc counts against the indirect sym to the direct sym
6edf0760 1776 list. Merge any entries against the same section. */
47b0e7ad 1777 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
1778 {
1779 struct elf_m32r_dyn_relocs *q;
41978308 1780
6edf0760
NC
1781 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1782 if (q->sec == p->sec)
1783 {
1784 q->pc_count += p->pc_count;
1785 q->count += p->count;
1786 *pp = p->next;
1787 break;
1788 }
1789 if (q == NULL)
1790 pp = &p->next;
1791 }
1792 *pp = edir->dyn_relocs;
1793 }
41978308 1794
6edf0760
NC
1795 edir->dyn_relocs = eind->dyn_relocs;
1796 eind->dyn_relocs = NULL;
1797 }
41978308 1798
fcfa13d2 1799 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
6edf0760
NC
1800}
1801
1802\f
1803/* Adjust a symbol defined by a dynamic object and referenced by a
1804 regular object. The current definition is in some section of the
1805 dynamic object, but we're not including those sections. We have to
1806 change the definition to something the rest of the link can
1807 understand. */
41978308 1808
6edf0760 1809static bfd_boolean
47b0e7ad
NC
1810m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1811 struct elf_link_hash_entry *h)
6edf0760
NC
1812{
1813 struct elf_m32r_link_hash_table *htab;
1814 struct elf_m32r_link_hash_entry *eh;
1815 struct elf_m32r_dyn_relocs *p;
1816 bfd *dynobj;
1817 asection *s;
1818 unsigned int power_of_two;
1819
1820#ifdef DEBUG_PIC
47b0e7ad 1821 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1822#endif
41978308 1823
6edf0760 1824 dynobj = elf_hash_table (info)->dynobj;
41978308 1825
6edf0760
NC
1826 /* Make sure we know what is going on here. */
1827 BFD_ASSERT (dynobj != NULL
f5385ebf 1828 && (h->needs_plt
f6e332e6 1829 || h->u.weakdef != NULL
f5385ebf
AM
1830 || (h->def_dynamic
1831 && h->ref_regular
1832 && !h->def_regular)));
6edf0760 1833
6edf0760
NC
1834 /* If this is a function, put it in the procedure linkage table. We
1835 will fill in the contents of the procedure linkage table later,
1836 when we know the address of the .got section. */
1837 if (h->type == STT_FUNC
f5385ebf 1838 || h->needs_plt)
6edf0760
NC
1839 {
1840 if (! info->shared
f5385ebf
AM
1841 && !h->def_dynamic
1842 && !h->ref_dynamic
6edf0760
NC
1843 && h->root.type != bfd_link_hash_undefweak
1844 && h->root.type != bfd_link_hash_undefined)
1845 {
1846 /* This case can occur if we saw a PLT reloc in an input
1847 file, but the symbol was never referred to by a dynamic
1848 object. In such a case, we don't actually need to build
1849 a procedure linkage table, and we can just do a PCREL
1850 reloc instead. */
1851 h->plt.offset = (bfd_vma) -1;
f5385ebf 1852 h->needs_plt = 0;
6edf0760
NC
1853 }
1854
1855 return TRUE;
1856 }
1857 else
1858 h->plt.offset = (bfd_vma) -1;
41978308 1859
6edf0760
NC
1860 /* If this is a weak symbol, and there is a real definition, the
1861 processor independent code will have arranged for us to see the
1862 real definition first, and we can just use the same value. */
f6e332e6 1863 if (h->u.weakdef != NULL)
6edf0760 1864 {
f6e332e6
AM
1865 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1866 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1867 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1868 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6edf0760
NC
1869 return TRUE;
1870 }
41978308 1871
6edf0760
NC
1872 /* This is a reference to a symbol defined by a dynamic object which
1873 is not a function. */
41978308 1874
6edf0760
NC
1875 /* If we are creating a shared library, we must presume that the
1876 only references to the symbol are via the global offset table.
1877 For such cases we need not do anything here; the relocations will
1878 be handled correctly by relocate_section. */
1879 if (info->shared)
1880 return TRUE;
41978308 1881
6edf0760
NC
1882 /* If there are no references to this symbol that do not use the
1883 GOT, we don't need to generate a copy reloc. */
f5385ebf 1884 if (!h->non_got_ref)
6edf0760
NC
1885 return TRUE;
1886
1887 /* If -z nocopyreloc was given, we won't generate them either. */
1888 if (info->nocopyreloc)
1889 {
f5385ebf 1890 h->non_got_ref = 0;
6edf0760
NC
1891 return TRUE;
1892 }
1893
1894 eh = (struct elf_m32r_link_hash_entry *) h;
1895 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1896 {
1897 s = p->sec->output_section;
1898 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1899 break;
1900 }
1901
1902 /* If we didn't find any dynamic relocs in sections which needs the
1903 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1904 the copy reloc. */
1905 if (p == NULL)
1906 {
f5385ebf 1907 h->non_got_ref = 0;
6edf0760
NC
1908 return TRUE;
1909 }
1910
909272ee
AM
1911 if (h->size == 0)
1912 {
1913 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1914 h->root.root.string);
1915 return TRUE;
1916 }
1917
6edf0760
NC
1918 /* We must allocate the symbol in our .dynbss section, which will
1919 become part of the .bss section of the executable. There will be
1920 an entry for this symbol in the .dynsym section. The dynamic
1921 object will contain position independent code, so all references
1922 from the dynamic object to this symbol will go through the global
1923 offset table. The dynamic linker will use the .dynsym entry to
1924 determine the address it must put in the global offset table, so
1925 both the dynamic object and the regular object will refer to the
1926 same memory location for the variable. */
41978308 1927
6edf0760
NC
1928 htab = m32r_elf_hash_table (info);
1929 s = htab->sdynbss;
1930 BFD_ASSERT (s != NULL);
41978308 1931
6edf0760
NC
1932 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1933 to copy the initial value out of the dynamic object and into the
1934 runtime process image. We need to remember the offset into the
1935 .rela.bss section we are going to use. */
1936 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1937 {
1938 asection *srel;
41978308 1939
6edf0760
NC
1940 srel = htab->srelbss;
1941 BFD_ASSERT (srel != NULL);
eea6121a 1942 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1943 h->needs_copy = 1;
6edf0760 1944 }
41978308 1945
6edf0760
NC
1946 /* We need to figure out the alignment required for this symbol. I
1947 have no idea how ELF linkers handle this. */
1948 power_of_two = bfd_log2 (h->size);
1949 if (power_of_two > 3)
1950 power_of_two = 3;
41978308 1951
6edf0760 1952 /* Apply the required alignment. */
eea6121a 1953 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
6edf0760
NC
1954 if (power_of_two > bfd_get_section_alignment (dynobj, s))
1955 {
1956 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
1957 return FALSE;
1958 }
41978308 1959
6edf0760
NC
1960 /* Define the symbol as being at this point in the section. */
1961 h->root.u.def.section = s;
eea6121a 1962 h->root.u.def.value = s->size;
41978308 1963
6edf0760 1964 /* Increment the section size to make room for the symbol. */
eea6121a 1965 s->size += h->size;
41978308 1966
6edf0760
NC
1967 return TRUE;
1968}
1969
6edf0760
NC
1970/* Allocate space in .plt, .got and associated reloc sections for
1971 dynamic relocs. */
41978308 1972
6edf0760 1973static bfd_boolean
47b0e7ad 1974allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC
1975{
1976 struct bfd_link_info *info;
1977 struct elf_m32r_link_hash_table *htab;
1978 struct elf_m32r_link_hash_entry *eh;
1979 struct elf_m32r_dyn_relocs *p;
41978308 1980
6edf0760
NC
1981 if (h->root.type == bfd_link_hash_indirect)
1982 return TRUE;
41978308 1983
6edf0760
NC
1984 if (h->root.type == bfd_link_hash_warning)
1985 /* When warning symbols are created, they **replace** the "real"
1986 entry in the hash table, thus we never get to see the real
1987 symbol in a hash traversal. So look at it now. */
1988 h = (struct elf_link_hash_entry *) h->root.u.i.link;
41978308 1989
6edf0760
NC
1990 info = (struct bfd_link_info *) inf;
1991 htab = m32r_elf_hash_table (info);
41978308 1992
6edf0760 1993 eh = (struct elf_m32r_link_hash_entry *) h;
41978308 1994
6edf0760
NC
1995 if (htab->root.dynamic_sections_created
1996 && h->plt.refcount > 0)
1997 {
1998 /* Make sure this symbol is output as a dynamic symbol.
1999 Undefined weak syms won't yet be marked as dynamic. */
2000 if (h->dynindx == -1
f5385ebf 2001 && !h->forced_local)
6edf0760 2002 {
c152c796 2003 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2004 return FALSE;
2005 }
41978308 2006
c152c796 2007 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
6edf0760
NC
2008 {
2009 asection *s = htab->splt;
41978308 2010
6edf0760
NC
2011 /* If this is the first .plt entry, make room for the special
2012 first entry. */
eea6121a
AM
2013 if (s->size == 0)
2014 s->size += PLT_ENTRY_SIZE;
41978308 2015
eea6121a 2016 h->plt.offset = s->size;
41978308 2017
6edf0760
NC
2018 /* If this symbol is not defined in a regular file, and we are
2019 not generating a shared library, then set the symbol to this
2020 location in the .plt. This is required to make function
2021 pointers compare as equal between the normal executable and
2022 the shared library. */
2023 if (! info->shared
f5385ebf 2024 && !h->def_regular)
6edf0760
NC
2025 {
2026 h->root.u.def.section = s;
2027 h->root.u.def.value = h->plt.offset;
2028 }
41978308 2029
6edf0760 2030 /* Make room for this entry. */
eea6121a 2031 s->size += PLT_ENTRY_SIZE;
41978308 2032
6edf0760
NC
2033 /* We also need to make an entry in the .got.plt section, which
2034 will be placed in the .got section by the linker script. */
eea6121a 2035 htab->sgotplt->size += 4;
41978308 2036
6edf0760 2037 /* We also need to make an entry in the .rel.plt section. */
eea6121a 2038 htab->srelplt->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2039 }
2040 else
2041 {
2042 h->plt.offset = (bfd_vma) -1;
f5385ebf 2043 h->needs_plt = 0;
6edf0760
NC
2044 }
2045 }
2046 else
2047 {
2048 h->plt.offset = (bfd_vma) -1;
f5385ebf 2049 h->needs_plt = 0;
6edf0760 2050 }
41978308 2051
6edf0760
NC
2052 if (h->got.refcount > 0)
2053 {
2054 asection *s;
2055 bfd_boolean dyn;
41978308 2056
6edf0760
NC
2057 /* Make sure this symbol is output as a dynamic symbol.
2058 Undefined weak syms won't yet be marked as dynamic. */
2059 if (h->dynindx == -1
f5385ebf 2060 && !h->forced_local)
6edf0760 2061 {
c152c796 2062 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2063 return FALSE;
2064 }
41978308 2065
6edf0760
NC
2066 s = htab->sgot;
2067
eea6121a
AM
2068 h->got.offset = s->size;
2069 s->size += 4;
6edf0760 2070 dyn = htab->root.dynamic_sections_created;
c152c796 2071 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
eea6121a 2072 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2073 }
2074 else
2075 h->got.offset = (bfd_vma) -1;
41978308 2076
6edf0760
NC
2077 if (eh->dyn_relocs == NULL)
2078 return TRUE;
41978308 2079
6edf0760
NC
2080 /* In the shared -Bsymbolic case, discard space allocated for
2081 dynamic pc-relative relocs against symbols which turn out to be
2082 defined in regular objects. For the normal shared case, discard
2083 space for pc-relative relocs that have become local due to symbol
2084 visibility changes. */
2085
2086 if (info->shared)
2087 {
f5385ebf
AM
2088 if (h->def_regular
2089 && (h->forced_local
6edf0760
NC
2090 || info->symbolic))
2091 {
2092 struct elf_m32r_dyn_relocs **pp;
47b0e7ad
NC
2093
2094 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
2095 {
2096 p->count -= p->pc_count;
2097 p->pc_count = 0;
2098 if (p->count == 0)
2099 *pp = p->next;
2100 else
2101 pp = &p->next;
2102 }
2103 }
2104 }
2105 else
2106 {
2107 /* For the non-shared case, discard space for relocs against
2108 symbols which turn out to need copy relocs or are not
2109 dynamic. */
41978308 2110
f5385ebf
AM
2111 if (!h->non_got_ref
2112 && ((h->def_dynamic
2113 && !h->def_regular)
6edf0760
NC
2114 || (htab->root.dynamic_sections_created
2115 && (h->root.type == bfd_link_hash_undefweak
2116 || h->root.type == bfd_link_hash_undefined))))
2117 {
2118 /* Make sure this symbol is output as a dynamic symbol.
2119 Undefined weak syms won't yet be marked as dynamic. */
2120 if (h->dynindx == -1
f5385ebf 2121 && !h->forced_local)
6edf0760 2122 {
c152c796 2123 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2124 return FALSE;
2125 }
41978308 2126
6edf0760
NC
2127 /* If that succeeded, we know we'll be keeping all the
2128 relocs. */
2129 if (h->dynindx != -1)
2130 goto keep;
2131 }
41978308 2132
6edf0760 2133 eh->dyn_relocs = NULL;
41978308 2134
6edf0760
NC
2135 keep: ;
2136 }
41978308 2137
6edf0760
NC
2138 /* Finally, allocate space. */
2139 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2140 {
2141 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2142 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 2143 }
41978308 2144
6edf0760
NC
2145 return TRUE;
2146}
47b0e7ad 2147
6edf0760 2148/* Find any dynamic relocs that apply to read-only sections. */
41978308 2149
6edf0760 2150static bfd_boolean
47b0e7ad 2151readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC
2152{
2153 struct elf_m32r_link_hash_entry *eh;
2154 struct elf_m32r_dyn_relocs *p;
2155
2156 if (h->root.type == bfd_link_hash_warning)
2157 h = (struct elf_link_hash_entry *) h->root.u.i.link;
252b5132 2158
6edf0760
NC
2159 eh = (struct elf_m32r_link_hash_entry *) h;
2160 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2161 {
2162 asection *s = p->sec->output_section;
252b5132 2163
6edf0760
NC
2164 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2165 {
2166 struct bfd_link_info *info = (struct bfd_link_info *) inf;
252b5132 2167
6edf0760 2168 info->flags |= DF_TEXTREL;
252b5132 2169
6edf0760
NC
2170 /* Not an error, just cut short the traversal. */
2171 return FALSE;
2172 }
252b5132 2173 }
6edf0760
NC
2174 return TRUE;
2175}
252b5132 2176
6edf0760 2177/* Set the sizes of the dynamic sections. */
41978308 2178
6edf0760 2179static bfd_boolean
47b0e7ad
NC
2180m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2181 struct bfd_link_info *info)
6edf0760
NC
2182{
2183 struct elf_m32r_link_hash_table *htab;
2184 bfd *dynobj;
2185 asection *s;
2186 bfd_boolean relocs;
2187 bfd *ibfd;
2188
2189#ifdef DEBUG_PIC
47b0e7ad 2190 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC
2191#endif
2192
2193 htab = m32r_elf_hash_table (info);
2194 dynobj = htab->root.dynobj;
2195 BFD_ASSERT (dynobj != NULL);
2196
2197 if (htab->root.dynamic_sections_created)
252b5132 2198 {
6edf0760 2199 /* Set the contents of the .interp section to the interpreter. */
80447b21 2200 if (info->executable)
6edf0760
NC
2201 {
2202 s = bfd_get_section_by_name (dynobj, ".interp");
2203 BFD_ASSERT (s != NULL);
eea6121a 2204 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC
2205 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2206 }
252b5132
RH
2207 }
2208
6edf0760
NC
2209 /* Set up .got offsets for local syms, and space for local dynamic
2210 relocs. */
2211 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2212 {
2213 bfd_signed_vma *local_got;
2214 bfd_signed_vma *end_local_got;
2215 bfd_size_type locsymcount;
2216 Elf_Internal_Shdr *symtab_hdr;
2217 asection *srel;
252b5132 2218
6edf0760
NC
2219 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2220 continue;
252b5132 2221
6edf0760
NC
2222 for (s = ibfd->sections; s != NULL; s = s->next)
2223 {
2224 struct elf_m32r_dyn_relocs *p;
2225
2226 for (p = ((struct elf_m32r_dyn_relocs *)
2227 elf_section_data (s)->local_dynrel);
2228 p != NULL;
2229 p = p->next)
2230 {
2231 if (! bfd_is_abs_section (p->sec)
2232 && bfd_is_abs_section (p->sec->output_section))
2233 {
2234 /* Input section has been discarded, either because
2235 it is a copy of a linkonce section or due to
2236 linker script /DISCARD/, so we'll be discarding
2237 the relocs too. */
2238 }
2239 else if (p->count != 0)
2240 {
2241 srel = elf_section_data (p->sec)->sreloc;
eea6121a 2242 srel->size += p->count * sizeof (Elf32_External_Rela);
6edf0760
NC
2243 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2244 info->flags |= DF_TEXTREL;
2245 }
2246 }
2247 }
2248
2249 local_got = elf_local_got_refcounts (ibfd);
2250 if (!local_got)
2251 continue;
2252
2253 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2254 locsymcount = symtab_hdr->sh_info;
2255 end_local_got = local_got + locsymcount;
2256 s = htab->sgot;
2257 srel = htab->srelgot;
2258 for (; local_got < end_local_got; ++local_got)
2259 {
2260 if (*local_got > 0)
2261 {
eea6121a
AM
2262 *local_got = s->size;
2263 s->size += 4;
6edf0760 2264 if (info->shared)
eea6121a 2265 srel->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2266 }
2267 else
2268 *local_got = (bfd_vma) -1;
2269 }
2270 }
2271
2272 /* Allocate global sym .plt and .got entries, and space for global
2273 sym dynamic relocs. */
47b0e7ad 2274 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC
2275
2276 /* We now have determined the sizes of the various dynamic sections.
2277 Allocate memory for them. */
2278 relocs = FALSE;
2279 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2280 {
6edf0760
NC
2281 if ((s->flags & SEC_LINKER_CREATED) == 0)
2282 continue;
252b5132 2283
6edf0760
NC
2284 if (s == htab->splt
2285 || s == htab->sgot
c456f082
AM
2286 || s == htab->sgotplt
2287 || s == htab->sdynbss)
6edf0760
NC
2288 {
2289 /* Strip this section if we don't need it; see the
2290 comment below. */
2291 }
2292 else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0)
2293 {
eea6121a 2294 if (s->size != 0 && s != htab->srelplt)
6edf0760
NC
2295 relocs = TRUE;
2296
2297 /* We use the reloc_count field as a counter if we need
2298 to copy relocs into the output file. */
2299 s->reloc_count = 0;
2300 }
252b5132 2301 else
47b0e7ad
NC
2302 /* It's not one of our sections, so don't allocate space. */
2303 continue;
6edf0760 2304
eea6121a 2305 if (s->size == 0)
6edf0760
NC
2306 {
2307 /* If we don't need this section, strip it from the
2308 output file. This is mostly to handle .rela.bss and
2309 .rela.plt. We must create both sections in
2310 create_dynamic_sections, because they must be created
2311 before the linker maps input sections to output
2312 sections. The linker does that before
2313 adjust_dynamic_symbol is called, and it is that
2314 function which decides whether anything needs to go
2315 into these sections. */
8423293d 2316 s->flags |= SEC_EXCLUDE;
6edf0760
NC
2317 continue;
2318 }
2319
c456f082
AM
2320 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2321 continue;
2322
6edf0760
NC
2323 /* Allocate memory for the section contents. We use bfd_zalloc
2324 here in case unused entries are not reclaimed before the
2325 section's contents are written out. This should not happen,
2326 but this way if it does, we get a R_M32R_NONE reloc instead
2327 of garbage. */
47b0e7ad 2328 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760
NC
2329 if (s->contents == NULL)
2330 return FALSE;
2331 }
2332
2333 if (htab->root.dynamic_sections_created)
2334 {
2335 /* Add some entries to the .dynamic section. We fill in the
2336 values later, in m32r_elf_finish_dynamic_sections, but we
2337 must add the entries now so that we get the correct size for
2338 the .dynamic section. The DT_DEBUG entry is filled in by the
2339 dynamic linker and used by the debugger. */
2340#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2341 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6edf0760 2342
80447b21 2343 if (info->executable)
252b5132 2344 {
6edf0760
NC
2345 if (! add_dynamic_entry (DT_DEBUG, 0))
2346 return FALSE;
252b5132 2347 }
6edf0760 2348
eea6121a 2349 if (htab->splt->size != 0)
6edf0760
NC
2350 {
2351 if (! add_dynamic_entry (DT_PLTGOT, 0)
2352 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2353 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2354 || ! add_dynamic_entry (DT_JMPREL, 0))
2355 return FALSE;
2356 }
2357
2358 if (relocs)
2359 {
2360 if (! add_dynamic_entry (DT_RELA, 0)
2361 || ! add_dynamic_entry (DT_RELASZ, 0)
2362 || ! add_dynamic_entry (DT_RELAENT,
2363 sizeof (Elf32_External_Rela)))
2364 return FALSE;
2365
2366 /* If any dynamic relocs apply to a read-only section,
2367 then we need a DT_TEXTREL entry. */
2368 if ((info->flags & DF_TEXTREL) == 0)
2369 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
47b0e7ad 2370 info);
6edf0760
NC
2371
2372 if ((info->flags & DF_TEXTREL) != 0)
2373 {
2374 if (! add_dynamic_entry (DT_TEXTREL, 0))
2375 return FALSE;
2376 }
2377 }
252b5132 2378 }
6edf0760
NC
2379#undef add_dynamic_entry
2380
2381 return TRUE;
252b5132 2382}
47b0e7ad 2383
252b5132
RH
2384/* Relocate an M32R/D ELF section.
2385 There is some attempt to make this function usable for many architectures,
f0fe0e16 2386 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH
2387
2388 The RELOCATE_SECTION function is called by the new ELF backend linker
2389 to handle the relocations for a section.
2390
2391 The relocs are always passed as Rela structures; if the section
2392 actually uses Rel structures, the r_addend field will always be
2393 zero.
2394
2395 This function is responsible for adjust the section contents as
2396 necessary, and (if using Rela relocs and generating a
1049f94e 2397 relocatable output file) adjusting the reloc addend as
252b5132
RH
2398 necessary.
2399
2400 This function does not have to worry about setting the reloc
2401 address or the reloc symbol index.
2402
2403 LOCAL_SYMS is a pointer to the swapped in local symbols.
2404
2405 LOCAL_SECTIONS is an array giving the section in the input file
2406 corresponding to the st_shndx field of each local symbol.
2407
2408 The global hash table entry for the global symbols can be found
2409 via elf_sym_hashes (input_bfd).
2410
1049f94e 2411 When generating relocatable output, this function must handle
252b5132
RH
2412 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2413 going to be the section symbol corresponding to the output
2414 section, which means that the addend must be adjusted
2415 accordingly. */
2416
b34976b6 2417static bfd_boolean
47b0e7ad
NC
2418m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2419 struct bfd_link_info *info,
2420 bfd *input_bfd,
2421 asection *input_section,
2422 bfd_byte *contents,
2423 Elf_Internal_Rela *relocs,
2424 Elf_Internal_Sym *local_syms,
2425 asection **local_sections)
252b5132
RH
2426{
2427 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2428 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2429 Elf_Internal_Rela *rel, *relend;
2430 /* Assume success. */
b34976b6 2431 bfd_boolean ret = TRUE;
252b5132 2432
6edf0760
NC
2433 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2434 bfd *dynobj;
2435 bfd_vma *local_got_offsets;
2436 asection *sgot, *splt, *sreloc;
07515404 2437 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760
NC
2438
2439 dynobj = htab->root.dynobj;
2440 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2441
6edf0760
NC
2442 sgot = htab->sgot;
2443 splt = htab->splt;
2444 sreloc = NULL;
b491616a 2445
252b5132
RH
2446 rel = relocs;
2447 relend = relocs + input_section->reloc_count;
2448 for (; rel < relend; rel++)
2449 {
2450 int r_type;
2451 reloc_howto_type *howto;
2452 unsigned long r_symndx;
6edf0760 2453 struct elf_link_hash_entry *h;
252b5132 2454 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
6edf0760
NC
2455 ensure it's zero (we use REL relocs, not RELA). Therefore this
2456 should be assigning zero to `addend', but for clarity we use
2457 `r_addend'. */
252b5132
RH
2458 bfd_vma addend = rel->r_addend;
2459 bfd_vma offset = rel->r_offset;
252b5132
RH
2460 Elf_Internal_Sym *sym;
2461 asection *sec;
2462 const char *sym_name;
2463 bfd_reloc_status_type r;
2464 const char *errmsg = NULL;
6edf0760 2465 bfd_boolean use_rel = FALSE;
252b5132
RH
2466
2467 h = NULL;
2468 r_type = ELF32_R_TYPE (rel->r_info);
2469 if (r_type < 0 || r_type >= (int) R_M32R_max)
2470 {
d003868e
AM
2471 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2472 input_bfd,
252b5132
RH
2473 (int) r_type);
2474 bfd_set_error (bfd_error_bad_value);
b34976b6 2475 ret = FALSE;
252b5132
RH
2476 continue;
2477 }
2478
47b0e7ad 2479 if ( r_type == R_M32R_GNU_VTENTRY
6edf0760
NC
2480 || r_type == R_M32R_GNU_VTINHERIT
2481 || r_type == R_M32R_NONE
2482 || r_type == R_M32R_RELA_GNU_VTENTRY
2483 || r_type == R_M32R_RELA_GNU_VTINHERIT)
252b5132
RH
2484 continue;
2485
6edf0760
NC
2486 if (r_type <= R_M32R_GNU_VTENTRY)
2487 use_rel = TRUE;
2488
252b5132
RH
2489 howto = m32r_elf_howto_table + r_type;
2490 r_symndx = ELF32_R_SYM (rel->r_info);
2491
688c58f3 2492 if (info->relocatable && use_rel)
252b5132 2493 {
1049f94e 2494 /* This is a relocatable link. We don't have to change
252b5132
RH
2495 anything, unless the reloc is against a section symbol,
2496 in which case we have to adjust according to where the
2497 section symbol winds up in the output section. */
2498 sec = NULL;
2499 if (r_symndx >= symtab_hdr->sh_info)
47b0e7ad
NC
2500 /* External symbol. */
2501 continue;
252b5132
RH
2502
2503 /* Local symbol. */
2504 sym = local_syms + r_symndx;
2505 sym_name = "<local symbol>";
2506 /* STT_SECTION: symbol is associated with a section. */
2507 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad
NC
2508 /* Symbol isn't associated with a section. Nothing to do. */
2509 continue;
252b5132
RH
2510
2511 sec = local_sections[r_symndx];
2512 addend += sec->output_offset + sym->st_value;
252b5132 2513
252b5132
RH
2514 /* If partial_inplace, we need to store any additional addend
2515 back in the section. */
2516 if (! howto->partial_inplace)
2517 continue;
2518 /* ??? Here is a nice place to call a special_function
2519 like handler. */
2520 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2521 r = _bfd_relocate_contents (howto, input_bfd,
2522 addend, contents + offset);
2523 else
2524 {
2525 Elf_Internal_Rela *lorel;
2526
2527 /* We allow an arbitrary number of HI16 relocs before the
2528 LO16 reloc. This permits gcc to emit the HI and LO relocs
2529 itself. */
2530 for (lorel = rel + 1;
2531 (lorel < relend
2532 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2533 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2534 lorel++)
2535 continue;
2536 if (lorel < relend
2537 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2538 {
2539 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2540 contents, addend);
2541 r = bfd_reloc_ok;
2542 }
2543 else
2544 r = _bfd_relocate_contents (howto, input_bfd,
2545 addend, contents + offset);
2546 }
252b5132
RH
2547 }
2548 else
2549 {
2550 bfd_vma relocation;
2551
2552 /* This is a final link. */
2553 sym = NULL;
2554 sec = NULL;
6edf0760 2555 h = NULL;
252b5132
RH
2556
2557 if (r_symndx < symtab_hdr->sh_info)
2558 {
2559 /* Local symbol. */
2560 sym = local_syms + r_symndx;
2561 sec = local_sections[r_symndx];
2562 sym_name = "<local symbol>";
6edf0760 2563
688c58f3 2564 if (!use_rel)
6edf0760
NC
2565 {
2566 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2567 addend = rel->r_addend;
2568
2569 if (info->relocatable)
2570 {
2571 /* This is a relocatable link. We don't have to change
2572 anything, unless the reloc is against a section symbol,
2573 in which case we have to adjust according to where the
2574 section symbol winds up in the output section. */
2575 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2576 rel->r_addend += sec->output_offset + sym->st_value;
41978308 2577
6edf0760
NC
2578 continue;
2579 }
2580 }
2581 else
2582 {
2583 relocation = (sec->output_section->vma
2584 + sec->output_offset
2585 + sym->st_value);
2586 }
252b5132
RH
2587 }
2588 else
2589 {
2590 /* External symbol. */
688c58f3 2591 if (info->relocatable && !use_rel)
6edf0760
NC
2592 continue;
2593
252b5132
RH
2594 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2595 while (h->root.type == bfd_link_hash_indirect
2596 || h->root.type == bfd_link_hash_warning)
2597 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2598 sym_name = h->root.root.string;
2599
2600 if (h->root.type == bfd_link_hash_defined
2601 || h->root.type == bfd_link_hash_defweak)
2602 {
6edf0760 2603 bfd_boolean dyn;
252b5132 2604 sec = h->root.u.def.section;
6edf0760
NC
2605
2606 dyn = htab->root.dynamic_sections_created;
2607 sec = h->root.u.def.section;
2608 if (r_type == R_M32R_GOTPC24
2609 || (r_type == R_M32R_GOTPC_HI_ULO
2610 || r_type == R_M32R_GOTPC_HI_SLO
2611 || r_type == R_M32R_GOTPC_LO)
2612 || (r_type == R_M32R_26_PLTREL
2613 && h->plt.offset != (bfd_vma) -1)
2614 || ((r_type == R_M32R_GOT24
2615 || r_type == R_M32R_GOT16_HI_ULO
2616 || r_type == R_M32R_GOT16_HI_SLO
2617 || r_type == R_M32R_GOT16_LO)
c152c796
AM
2618 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2619 info->shared, h)
6edf0760
NC
2620 && (! info->shared
2621 || (! info->symbolic && h->dynindx != -1)
f5385ebf 2622 || !h->def_regular))
6edf0760
NC
2623 || (info->shared
2624 && ((! info->symbolic && h->dynindx != -1)
f5385ebf 2625 || !h->def_regular)
6edf0760
NC
2626 && (((r_type == R_M32R_16_RELA
2627 || r_type == R_M32R_32_RELA
2628 || r_type == R_M32R_24_RELA
2629 || r_type == R_M32R_HI16_ULO_RELA
2630 || r_type == R_M32R_HI16_SLO_RELA
2631 || r_type == R_M32R_LO16_RELA)
f5385ebf 2632 && !h->forced_local)
157e7bd1 2633 || r_type == R_M32R_REL32
6edf0760
NC
2634 || r_type == R_M32R_10_PCREL_RELA
2635 || r_type == R_M32R_18_PCREL_RELA
2636 || r_type == R_M32R_26_PCREL_RELA)
2637 && ((input_section->flags & SEC_ALLOC) != 0
2638 /* DWARF will emit R_M32R_16(24,32) relocations
41978308 2639 in its sections against symbols defined
6edf0760
NC
2640 externally in shared libraries. We can't do
2641 anything with them here. */
2642 || ((input_section->flags & SEC_DEBUGGING) != 0
f5385ebf 2643 && h->def_dynamic))))
6edf0760
NC
2644 {
2645 /* In these cases, we don't need the relocation
2646 value. We check specially because in some
2647 obscure cases sec->output_section will be NULL. */
2648 relocation = 0;
2649 }
2650 else if (sec->output_section == NULL)
2651 {
2652 (*_bfd_error_handler)
843fe662
L
2653 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2654 input_bfd,
2655 input_section,
2656 (long) rel->r_offset,
2657 howto->name,
2658 h->root.root.string);
6edf0760
NC
2659
2660 relocation = 0;
2661 }
252b5132
RH
2662 else
2663 relocation = (h->root.u.def.value
2664 + sec->output_section->vma
2665 + sec->output_offset);
2666 }
2667 else if (h->root.type == bfd_link_hash_undefweak)
2668 relocation = 0;
59c2e50f 2669 else if (info->unresolved_syms_in_objects == RM_IGNORE
6edf0760
NC
2670 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2671 relocation = 0;
252b5132
RH
2672 else
2673 {
2674 if (! ((*info->callbacks->undefined_symbol)
2675 (info, h->root.root.string, input_bfd,
6edf0760 2676 input_section, offset,
59c2e50f 2677 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
6edf0760 2678 || ELF_ST_VISIBILITY (h->other)))))
b34976b6 2679 return FALSE;
252b5132
RH
2680 relocation = 0;
2681 }
2682 }
2683
2684 /* Sanity check the address. */
07515404 2685 if (offset > high_address)
252b5132
RH
2686 {
2687 r = bfd_reloc_outofrange;
2688 goto check_reloc;
2689 }
2690
2691 switch ((int) r_type)
2692 {
097f809a
NC
2693 case R_M32R_GOTOFF:
2694 /* Relocation is relative to the start of the global offset
2695 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2696
097f809a
NC
2697 ld24 rx. #label@GOTOFF + addend
2698 sub rx, r12. */
2699
2700 BFD_ASSERT (sgot != NULL);
2701
2702 relocation = -(relocation - sgot->output_section->vma);
2703 rel->r_addend = -rel->r_addend;
2704 break;
2705
2706 case R_M32R_GOTOFF_HI_ULO:
2707 case R_M32R_GOTOFF_HI_SLO:
2708 case R_M32R_GOTOFF_LO:
2709 BFD_ASSERT (sgot != NULL);
2710
2711 relocation -= sgot->output_section->vma;
2712
2713 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2714 && ((relocation + rel->r_addend) & 0x8000))
2715 rel->r_addend += 0x10000;
2716 break;
2717
6edf0760
NC
2718 case R_M32R_GOTPC24:
2719 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2720 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2721 */
2722 relocation = sgot->output_section->vma;
2723 break;
2724
2725 case R_M32R_GOTPC_HI_ULO:
2726 case R_M32R_GOTPC_HI_SLO:
41978308 2727 case R_M32R_GOTPC_LO:
6edf0760
NC
2728 {
2729 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2730 bl .+4
2731 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2732 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2733 or
2734 bl .+4
2735 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2736 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2737 */
2738 relocation = sgot->output_section->vma;
2739 relocation -= (input_section->output_section->vma
2740 + input_section->output_offset
2741 + rel->r_offset);
41978308 2742 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC
2743 && ((relocation + rel->r_addend) & 0x8000))
2744 rel->r_addend += 0x10000;
2745
2746 break;
2747 }
2748 case R_M32R_GOT16_HI_ULO:
2749 case R_M32R_GOT16_HI_SLO:
41978308 2750 case R_M32R_GOT16_LO:
6edf0760
NC
2751 /* Fall through. */
2752 case R_M32R_GOT24:
2753 /* Relocation is to the entry for this symbol in the global
2754 offset table. */
2755 BFD_ASSERT (sgot != NULL);
41978308 2756
6edf0760
NC
2757 if (h != NULL)
2758 {
2759 bfd_boolean dyn;
2760 bfd_vma off;
41978308 2761
6edf0760
NC
2762 off = h->got.offset;
2763 BFD_ASSERT (off != (bfd_vma) -1);
2764
2765 dyn = htab->root.dynamic_sections_created;
c152c796 2766 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6edf0760
NC
2767 || (info->shared
2768 && (info->symbolic
2769 || h->dynindx == -1
f5385ebf
AM
2770 || h->forced_local)
2771 && h->def_regular))
6edf0760
NC
2772 {
2773 /* This is actually a static link, or it is a
2774 -Bsymbolic link and the symbol is defined
2775 locally, or the symbol was forced to be local
2776 because of a version file. We must initialize
2777 this entry in the global offset table. Since the
2778 offset must always be a multiple of 4, we use the
2779 least significant bit to record whether we have
2780 initialized it already.
41978308 2781
6edf0760
NC
2782 When doing a dynamic link, we create a .rela.got
2783 relocation entry to initialize the value. This
2784 is done in the finish_dynamic_symbol routine. */
2785 if ((off & 1) != 0)
2786 off &= ~1;
2787 else
2788 {
2789 bfd_put_32 (output_bfd, relocation,
2790 sgot->contents + off);
2791 h->got.offset |= 1;
2792 }
2793 }
41978308 2794
6edf0760
NC
2795 relocation = sgot->output_offset + off;
2796 }
2797 else
2798 {
2799 bfd_vma off;
2800 bfd_byte *loc;
41978308 2801
6edf0760
NC
2802 BFD_ASSERT (local_got_offsets != NULL
2803 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2804
6edf0760 2805 off = local_got_offsets[r_symndx];
41978308 2806
6edf0760
NC
2807 /* The offset must always be a multiple of 4. We use
2808 the least significant bit to record whether we have
2809 already processed this entry. */
2810 if ((off & 1) != 0)
2811 off &= ~1;
2812 else
2813 {
2814 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2815
6edf0760
NC
2816 if (info->shared)
2817 {
2818 asection *srelgot;
2819 Elf_Internal_Rela outrel;
41978308 2820
6edf0760
NC
2821 /* We need to generate a R_M32R_RELATIVE reloc
2822 for the dynamic linker. */
2823 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2824 BFD_ASSERT (srelgot != NULL);
41978308 2825
6edf0760
NC
2826 outrel.r_offset = (sgot->output_section->vma
2827 + sgot->output_offset
2828 + off);
2829 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2830 outrel.r_addend = relocation;
2831 loc = srelgot->contents;
47b0e7ad 2832 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2833 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2834 ++srelgot->reloc_count;
2835 }
41978308 2836
6edf0760
NC
2837 local_got_offsets[r_symndx] |= 1;
2838 }
41978308 2839
6edf0760
NC
2840 relocation = sgot->output_offset + off;
2841 }
2842 if ((r_type == R_M32R_GOT16_HI_SLO)
2843 && ((relocation + rel->r_addend) & 0x8000))
2844 rel->r_addend += 0x10000;
2845
2846 break;
41978308 2847
6edf0760
NC
2848 case R_M32R_26_PLTREL:
2849 /* Relocation is to the entry for this symbol in the
2850 procedure linkage table. */
41978308 2851
6edf0760
NC
2852 /* The native assembler will generate a 26_PLTREL reloc
2853 for a local symbol if you assemble a call from one
2854 section to another when using -K pic. */
2855 if (h == NULL)
2856 break;
2857
f5385ebf 2858 if (h->forced_local)
6edf0760
NC
2859 break;
2860
2861 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC
2862 /* We didn't make a PLT entry for this symbol. This
2863 happens when statically linking PIC code, or when
2864 using -Bsymbolic. */
2865 break;
41978308 2866
6edf0760
NC
2867 relocation = (splt->output_section->vma
2868 + splt->output_offset
2869 + h->plt.offset);
2870 break;
41978308 2871
6edf0760 2872 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC
2873 if ((relocation + rel->r_addend) & 0x8000)
2874 rel->r_addend += 0x10000;
6edf0760 2875 /* Fall through. */
47b0e7ad 2876
6edf0760
NC
2877 case R_M32R_16_RELA:
2878 case R_M32R_24_RELA:
2879 case R_M32R_32_RELA:
157e7bd1 2880 case R_M32R_REL32:
6edf0760
NC
2881 case R_M32R_18_PCREL_RELA:
2882 case R_M32R_26_PCREL_RELA:
2883 case R_M32R_HI16_ULO_RELA:
2884 case R_M32R_LO16_RELA:
6edf0760
NC
2885 if (info->shared
2886 && r_symndx != 0
2887 && (input_section->flags & SEC_ALLOC) != 0
2888 && ((r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC
2889 && r_type != R_M32R_26_PCREL_RELA
2890 && r_type != R_M32R_REL32)
6edf0760
NC
2891 || (h != NULL
2892 && h->dynindx != -1
2893 && (! info->symbolic
f5385ebf 2894 || !h->def_regular))))
6edf0760
NC
2895 {
2896 Elf_Internal_Rela outrel;
2897 bfd_boolean skip, relocate;
2898 bfd_byte *loc;
41978308 2899
6edf0760
NC
2900 /* When generating a shared object, these relocations
2901 are copied into the output file to be resolved at run
2902 time. */
6edf0760
NC
2903 if (sreloc == NULL)
2904 {
2905 const char *name;
41978308 2906
6edf0760
NC
2907 name = (bfd_elf_string_from_elf_section
2908 (input_bfd,
2909 elf_elfheader (input_bfd)->e_shstrndx,
2910 elf_section_data (input_section)->rel_hdr.sh_name));
2911 if (name == NULL)
2912 return FALSE;
41978308 2913
6edf0760
NC
2914 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2915 && strcmp (bfd_get_section_name (input_bfd,
2916 input_section),
2917 name + 5) == 0);
41978308 2918
6edf0760
NC
2919 sreloc = bfd_get_section_by_name (dynobj, name);
2920 BFD_ASSERT (sreloc != NULL);
2921 }
41978308 2922
6edf0760
NC
2923 skip = FALSE;
2924 relocate = FALSE;
41978308 2925
6edf0760
NC
2926 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2927 info,
2928 input_section,
2929 rel->r_offset);
2930 if (outrel.r_offset == (bfd_vma) -1)
2931 skip = TRUE;
2932 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2933 skip = relocate = TRUE;
6edf0760
NC
2934 outrel.r_offset += (input_section->output_section->vma
2935 + input_section->output_offset);
41978308 2936
6edf0760
NC
2937 if (skip)
2938 memset (&outrel, 0, sizeof outrel);
2939 else if (r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC
2940 || r_type == R_M32R_26_PCREL_RELA
2941 || r_type == R_M32R_REL32)
6edf0760
NC
2942 {
2943 BFD_ASSERT (h != NULL && h->dynindx != -1);
2944 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2945 outrel.r_addend = rel->r_addend;
2946 }
2947 else
2948 {
2949 /* h->dynindx may be -1 if this symbol was marked to
2950 become local. */
2951 if (h == NULL
2952 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2953 && h->def_regular))
6edf0760
NC
2954 {
2955 relocate = TRUE;
2956 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2957 outrel.r_addend = relocation + rel->r_addend;
2958 }
2959 else
2960 {
2961 BFD_ASSERT (h->dynindx != -1);
2962 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2963 outrel.r_addend = relocation + rel->r_addend;
2964 }
2965 }
2966
2967 loc = sreloc->contents;
47b0e7ad 2968 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2969 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2970 ++sreloc->reloc_count;
2971
2972 /* If this reloc is against an external symbol, we do
2973 not want to fiddle with the addend. Otherwise, we
2974 need to include the symbol value so that it becomes
2975 an addend for the dynamic reloc. */
2976 if (! relocate)
2977 continue;
2978 }
2979 break;
41978308 2980
252b5132
RH
2981 case (int) R_M32R_10_PCREL :
2982 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2983 contents, offset,
2984 sec, relocation, addend);
6edf0760 2985 goto check_reloc;
252b5132
RH
2986
2987 case (int) R_M32R_HI16_SLO :
2988 case (int) R_M32R_HI16_ULO :
2989 {
2990 Elf_Internal_Rela *lorel;
2991
2992 /* We allow an arbitrary number of HI16 relocs before the
2993 LO16 reloc. This permits gcc to emit the HI and LO relocs
2994 itself. */
2995 for (lorel = rel + 1;
2996 (lorel < relend
2997 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2998 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2999 lorel++)
3000 continue;
3001 if (lorel < relend
3002 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3003 {
3004 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3005 contents, relocation + addend);
3006 r = bfd_reloc_ok;
3007 }
3008 else
3009 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3010 contents, offset,
3011 relocation, addend);
3012 }
6edf0760
NC
3013
3014 goto check_reloc;
252b5132 3015
af705ba8 3016 case (int) R_M32R_SDA16_RELA:
252b5132
RH
3017 case (int) R_M32R_SDA16 :
3018 {
3019 const char *name;
3020
3021 BFD_ASSERT (sec != NULL);
3022 name = bfd_get_section_name (abfd, sec);
3023
47b0e7ad 3024 if ( strcmp (name, ".sdata") == 0
252b5132
RH
3025 || strcmp (name, ".sbss") == 0
3026 || strcmp (name, ".scommon") == 0)
3027 {
3028 bfd_vma sda_base;
3029 bfd *out_bfd = sec->output_section->owner;
3030
3031 r = m32r_elf_final_sda_base (out_bfd, info,
3032 &errmsg,
3033 &sda_base);
3034 if (r != bfd_reloc_ok)
3035 {
b34976b6 3036 ret = FALSE;
252b5132
RH
3037 goto check_reloc;
3038 }
3039
3040 /* At this point `relocation' contains the object's
3041 address. */
3042 relocation -= sda_base;
3043 /* Now it contains the offset from _SDA_BASE_. */
3044 }
3045 else
3046 {
8f615d07 3047 (*_bfd_error_handler)
d003868e
AM
3048 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3049 input_bfd,
3050 sec,
8f615d07 3051 sym_name,
d003868e 3052 m32r_elf_howto_table[(int) r_type].name);
252b5132 3053 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3054 ret = FALSE;
252b5132
RH
3055 continue;
3056 }
3057 }
47b0e7ad 3058 /* Fall through. */
6edf0760
NC
3059
3060 default : /* OLD_M32R_RELOC */
252b5132 3061
252b5132
RH
3062 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3063 contents, offset,
3064 relocation, addend);
6edf0760 3065 goto check_reloc;
252b5132 3066 }
6edf0760
NC
3067
3068 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3069 contents, rel->r_offset,
3070 relocation, rel->r_addend);
3071
252b5132
RH
3072 }
3073
3074 check_reloc:
3075
3076 if (r != bfd_reloc_ok)
3077 {
3078 /* FIXME: This should be generic enough to go in a utility. */
3079 const char *name;
3080
3081 if (h != NULL)
3082 name = h->root.root.string;
3083 else
3084 {
3085 name = (bfd_elf_string_from_elf_section
3086 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3087 if (name == NULL || *name == '\0')
3088 name = bfd_section_name (input_bfd, sec);
3089 }
3090
3091 if (errmsg != NULL)
3092 goto common_error;
3093
3094 switch (r)
3095 {
3096 case bfd_reloc_overflow:
3097 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L
3098 (info, (h ? &h->root : NULL), name, howto->name,
3099 (bfd_vma) 0, input_bfd, input_section, offset)))
b34976b6 3100 return FALSE;
252b5132
RH
3101 break;
3102
3103 case bfd_reloc_undefined:
3104 if (! ((*info->callbacks->undefined_symbol)
3105 (info, name, input_bfd, input_section,
b34976b6
AM
3106 offset, TRUE)))
3107 return FALSE;
252b5132
RH
3108 break;
3109
3110 case bfd_reloc_outofrange:
3111 errmsg = _("internal error: out of range error");
3112 goto common_error;
3113
3114 case bfd_reloc_notsupported:
3115 errmsg = _("internal error: unsupported relocation error");
3116 goto common_error;
3117
3118 case bfd_reloc_dangerous:
3119 errmsg = _("internal error: dangerous error");
3120 goto common_error;
3121
3122 default:
3123 errmsg = _("internal error: unknown error");
3124 /* fall through */
3125
3126 common_error:
3127 if (!((*info->callbacks->warning)
3128 (info, errmsg, name, input_bfd, input_section,
3129 offset)))
b34976b6 3130 return FALSE;
252b5132
RH
3131 break;
3132 }
3133 }
3134 }
3135
3136 return ret;
3137}
6edf0760
NC
3138
3139/* Finish up dynamic symbol handling. We set the contents of various
3140 dynamic sections here. */
47b0e7ad 3141
6edf0760 3142static bfd_boolean
47b0e7ad
NC
3143m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3144 struct bfd_link_info *info,
3145 struct elf_link_hash_entry *h,
3146 Elf_Internal_Sym *sym)
6edf0760
NC
3147{
3148 struct elf_m32r_link_hash_table *htab;
3149 bfd *dynobj;
3150 bfd_byte *loc;
41978308 3151
6edf0760 3152#ifdef DEBUG_PIC
47b0e7ad 3153 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3154#endif
41978308 3155
6edf0760
NC
3156 htab = m32r_elf_hash_table (info);
3157 dynobj = htab->root.dynobj;
3158
3159 if (h->plt.offset != (bfd_vma) -1)
3160 {
3161 asection *splt;
3162 asection *sgot;
3163 asection *srela;
3164
3165 bfd_vma plt_index;
3166 bfd_vma got_offset;
3167 Elf_Internal_Rela rela;
41978308 3168
6edf0760
NC
3169 /* This symbol has an entry in the procedure linkage table. Set
3170 it up. */
41978308 3171
6edf0760 3172 BFD_ASSERT (h->dynindx != -1);
41978308 3173
6edf0760
NC
3174 splt = htab->splt;
3175 sgot = htab->sgotplt;
3176 srela = htab->srelplt;
3177 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3178
3179 /* Get the index in the procedure linkage table which
3180 corresponds to this symbol. This is the index of this symbol
3181 in all the symbols for which we are making plt entries. The
3182 first entry in the procedure linkage table is reserved. */
3183 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3184
3185 /* Get the offset into the .got table of the entry that
3186 corresponds to this function. Each .got entry is 4 bytes.
3187 The first three are reserved. */
3188 got_offset = (plt_index + 3) * 4;
3189
3190 /* Fill in the entry in the procedure linkage table. */
3191 if (! info->shared)
3192 {
3193 bfd_put_32 (output_bfd,
3194 (PLT_ENTRY_WORD0b
3195 + (((sgot->output_section->vma
3196 + sgot->output_offset
3197 + got_offset) >> 16) & 0xffff)),
3198 splt->contents + h->plt.offset);
3199 bfd_put_32 (output_bfd,
3200 (PLT_ENTRY_WORD1b
3201 + ((sgot->output_section->vma
3202 + sgot->output_offset
3203 + got_offset) & 0xffff)),
3204 splt->contents + h->plt.offset + 4);
3205 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3206 splt->contents + h->plt.offset + 8);
3207 bfd_put_32 (output_bfd,
3208 (PLT_ENTRY_WORD3
3209 + plt_index * sizeof (Elf32_External_Rela)),
3210 splt->contents + h->plt.offset + 12);
3211 bfd_put_32 (output_bfd,
3212 (PLT_ENTRY_WORD4
3213 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3214 splt->contents + h->plt.offset + 16);
3215 }
3216 else
3217 {
3218 bfd_put_32 (output_bfd,
3219 PLT_ENTRY_WORD0 + got_offset,
3220 splt->contents + h->plt.offset);
3221 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3222 splt->contents + h->plt.offset + 4);
3223 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3224 splt->contents + h->plt.offset + 8);
3225 bfd_put_32 (output_bfd,
3226 (PLT_ENTRY_WORD3
3227 + plt_index * sizeof (Elf32_External_Rela)),
3228 splt->contents + h->plt.offset + 12);
3229 bfd_put_32 (output_bfd,
3230 (PLT_ENTRY_WORD4
3231 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3232 splt->contents + h->plt.offset + 16);
3233 }
41978308 3234
6edf0760
NC
3235 /* Fill in the entry in the global offset table. */
3236 bfd_put_32 (output_bfd,
3237 (splt->output_section->vma
3238 + splt->output_offset
3239 + h->plt.offset
3240 + 12), /* same offset */
3241 sgot->contents + got_offset);
3242
3243 /* Fill in the entry in the .rela.plt section. */
3244 rela.r_offset = (sgot->output_section->vma
3245 + sgot->output_offset
3246 + got_offset);
3247 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3248 rela.r_addend = 0;
3249 loc = srela->contents;
47b0e7ad 3250 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3251 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3252
f5385ebf 3253 if (!h->def_regular)
6edf0760
NC
3254 {
3255 /* Mark the symbol as undefined, rather than as defined in
3256 the .plt section. Leave the value alone. */
3257 sym->st_shndx = SHN_UNDEF;
3258 }
3259 }
3260
3261 if (h->got.offset != (bfd_vma) -1)
3262 {
3263 asection *sgot;
3264 asection *srela;
3265 Elf_Internal_Rela rela;
41978308 3266
6edf0760
NC
3267 /* This symbol has an entry in the global offset table. Set it
3268 up. */
41978308 3269
6edf0760
NC
3270 sgot = htab->sgot;
3271 srela = htab->srelgot;
3272 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3273
6edf0760
NC
3274 rela.r_offset = (sgot->output_section->vma
3275 + sgot->output_offset
3276 + (h->got.offset &~ 1));
41978308 3277
6edf0760
NC
3278 /* If this is a -Bsymbolic link, and the symbol is defined
3279 locally, we just want to emit a RELATIVE reloc. Likewise if
3280 the symbol was forced to be local because of a version file.
3281 The entry in the global offset table will already have been
3282 initialized in the relocate_section function. */
3283 if (info->shared
3284 && (info->symbolic
3285 || h->dynindx == -1
f5385ebf
AM
3286 || h->forced_local)
3287 && h->def_regular)
6edf0760
NC
3288 {
3289 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3290 rela.r_addend = (h->root.u.def.value
3291 + h->root.u.def.section->output_section->vma
3292 + h->root.u.def.section->output_offset);
3293 }
3294 else
3295 {
47b0e7ad 3296 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC
3297 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3298 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3299 rela.r_addend = 0;
3300 }
41978308 3301
6edf0760 3302 loc = srela->contents;
47b0e7ad 3303 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3304 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3305 ++srela->reloc_count;
3306 }
41978308 3307
f5385ebf 3308 if (h->needs_copy)
6edf0760
NC
3309 {
3310 asection *s;
3311 Elf_Internal_Rela rela;
41978308 3312
6edf0760 3313 /* This symbols needs a copy reloc. Set it up. */
41978308 3314
6edf0760
NC
3315 BFD_ASSERT (h->dynindx != -1
3316 && (h->root.type == bfd_link_hash_defined
3317 || h->root.type == bfd_link_hash_defweak));
41978308 3318
6edf0760
NC
3319 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3320 ".rela.bss");
3321 BFD_ASSERT (s != NULL);
41978308 3322
6edf0760
NC
3323 rela.r_offset = (h->root.u.def.value
3324 + h->root.u.def.section->output_section->vma
3325 + h->root.u.def.section->output_offset);
3326 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3327 rela.r_addend = 0;
3328 loc = s->contents;
47b0e7ad 3329 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3330 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3331 ++s->reloc_count;
3332 }
41978308 3333
6edf0760
NC
3334 /* Mark some specially defined symbols as absolute. */
3335 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3336 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3337 sym->st_shndx = SHN_ABS;
41978308 3338
6edf0760
NC
3339 return TRUE;
3340}
3341
3342
3343/* Finish up the dynamic sections. */
41978308 3344
6edf0760 3345static bfd_boolean
47b0e7ad
NC
3346m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3347 struct bfd_link_info *info)
6edf0760
NC
3348{
3349 struct elf_m32r_link_hash_table *htab;
3350 bfd *dynobj;
3351 asection *sdyn;
3352 asection *sgot;
3353
3354#ifdef DEBUG_PIC
47b0e7ad 3355 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3356#endif
41978308 3357
6edf0760
NC
3358 htab = m32r_elf_hash_table (info);
3359 dynobj = htab->root.dynobj;
3360
3361 sgot = htab->sgotplt;
3362 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
41978308 3363
6edf0760
NC
3364 if (htab->root.dynamic_sections_created)
3365 {
3366 asection *splt;
3367 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3368
6edf0760 3369 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3370
6edf0760 3371 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3372 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC
3373
3374 for (; dyncon < dynconend; dyncon++)
3375 {
3376 Elf_Internal_Dyn dyn;
3377 const char *name;
3378 asection *s;
41978308 3379
6edf0760 3380 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3381
6edf0760
NC
3382 switch (dyn.d_tag)
3383 {
3384 default:
3385 break;
3386
3387 case DT_PLTGOT:
3388 name = ".got";
41978308 3389 s = htab->sgot->output_section;
6edf0760
NC
3390 goto get_vma;
3391 case DT_JMPREL:
3392 name = ".rela.plt";
3393 s = htab->srelplt->output_section;
3394 get_vma:
3395 BFD_ASSERT (s != NULL);
3396 dyn.d_un.d_ptr = s->vma;
3397 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3398 break;
3399
3400 case DT_PLTRELSZ:
3401 s = htab->srelplt->output_section;
3402 BFD_ASSERT (s != NULL);
eea6121a 3403 dyn.d_un.d_val = s->size;
6edf0760
NC
3404 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3405 break;
3406
3407 case DT_RELASZ:
3408 /* My reading of the SVR4 ABI indicates that the
3409 procedure linkage table relocs (DT_JMPREL) should be
3410 included in the overall relocs (DT_RELA). This is
3411 what Solaris does. However, UnixWare can not handle
3412 that case. Therefore, we override the DT_RELASZ entry
3413 here to make it not include the JMPREL relocs. Since
3414 the linker script arranges for .rela.plt to follow all
3415 other relocation sections, we don't have to worry
3416 about changing the DT_RELA entry. */
3417 if (htab->srelplt != NULL)
3418 {
3419 s = htab->srelplt->output_section;
eea6121a 3420 dyn.d_un.d_val -= s->size;
6edf0760
NC
3421 }
3422 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3423 break;
3424 }
3425 }
41978308 3426
6edf0760
NC
3427 /* Fill in the first entry in the procedure linkage table. */
3428 splt = htab->splt;
eea6121a 3429 if (splt && splt->size > 0)
6edf0760
NC
3430 {
3431 if (info->shared)
3432 {
3433 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3434 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3435 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3436 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3437 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3438 }
3439 else
3440 {
3441 unsigned long addr;
3442 /* addr = .got + 4 */
3443 addr = sgot->output_section->vma + sgot->output_offset + 4;
3444 bfd_put_32 (output_bfd,
3445 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3446 splt->contents);
41978308 3447 bfd_put_32 (output_bfd,
6edf0760
NC
3448 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3449 splt->contents + 4);
3450 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3451 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3452 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3453 }
3454
3455 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3456 PLT_ENTRY_SIZE;
3457 }
3458 }
3459
3460 /* Fill in the first three entries in the global offset table. */
eea6121a 3461 if (sgot && sgot->size > 0)
6edf0760
NC
3462 {
3463 if (sdyn == NULL)
3464 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3465 else
3466 bfd_put_32 (output_bfd,
3467 sdyn->output_section->vma + sdyn->output_offset,
3468 sgot->contents);
3469 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3470 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3471
3472 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3473 }
41978308 3474
6edf0760
NC
3475 return TRUE;
3476}
3477
252b5132
RH
3478\f
3479/* Set the right machine number. */
47b0e7ad 3480
b34976b6 3481static bfd_boolean
47b0e7ad 3482m32r_elf_object_p (bfd *abfd)
252b5132
RH
3483{
3484 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3485 {
3486 default:
3487 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3488 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3489 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3490 }
b34976b6 3491 return TRUE;
252b5132
RH
3492}
3493
3494/* Store the machine number in the flags field. */
47b0e7ad 3495
252b5132 3496static void
47b0e7ad
NC
3497m32r_elf_final_write_processing (bfd *abfd,
3498 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH
3499{
3500 unsigned long val;
3501
3502 switch (bfd_get_mach (abfd))
3503 {
3504 default:
3505 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3506 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3507 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH
3508 }
3509
3510 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3511 elf_elfheader (abfd)->e_flags |= val;
3512}
3513
c3668558 3514/* Function to keep M32R specific file flags. */
47b0e7ad 3515
b34976b6 3516static bfd_boolean
47b0e7ad 3517m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH
3518{
3519 BFD_ASSERT (!elf_flags_init (abfd)
3520 || elf_elfheader (abfd)->e_flags == flags);
3521
3522 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM
3523 elf_flags_init (abfd) = TRUE;
3524 return TRUE;
252b5132
RH
3525}
3526
252b5132
RH
3527/* Merge backend specific data from an object file to the output
3528 object file when linking. */
47b0e7ad 3529
b34976b6 3530static bfd_boolean
47b0e7ad 3531m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH
3532{
3533 flagword out_flags;
3534 flagword in_flags;
3535
3536 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3537 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3538 return TRUE;
252b5132
RH
3539
3540 in_flags = elf_elfheader (ibfd)->e_flags;
3541 out_flags = elf_elfheader (obfd)->e_flags;
3542
3543 if (! elf_flags_init (obfd))
3544 {
3545 /* If the input is the default architecture then do not
3546 bother setting the flags for the output architecture,
3547 instead allow future merges to do this. If no future
3548 merges ever set these flags then they will retain their
3549 unitialised values, which surprise surprise, correspond
3550 to the default values. */
3551 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3552 return TRUE;
c3668558 3553
b34976b6 3554 elf_flags_init (obfd) = TRUE;
252b5132
RH
3555 elf_elfheader (obfd)->e_flags = in_flags;
3556
3557 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3558 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC
3559 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3560 bfd_get_mach (ibfd));
252b5132 3561
b34976b6 3562 return TRUE;
252b5132
RH
3563 }
3564
3565 /* Check flag compatibility. */
3566 if (in_flags == out_flags)
b34976b6 3567 return TRUE;
252b5132
RH
3568
3569 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3570 {
88845958
NC
3571 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3572 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3573 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3574 {
8f615d07 3575 (*_bfd_error_handler)
d003868e 3576 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH
3577
3578 bfd_set_error (bfd_error_bad_value);
b34976b6 3579 return FALSE;
252b5132
RH
3580 }
3581 }
3582
b34976b6 3583 return TRUE;
252b5132
RH
3584}
3585
47b0e7ad
NC
3586/* Display the flags field. */
3587
b34976b6 3588static bfd_boolean
47b0e7ad 3589m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH
3590{
3591 FILE * file = (FILE *) ptr;
c3668558 3592
f12123c0 3593 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3594
252b5132 3595 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3596
252b5132 3597 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3598
252b5132
RH
3599 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3600 {
3601 default:
3602 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3603 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3604 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3605 }
c3668558 3606
252b5132 3607 fputc ('\n', file);
c3668558 3608
b34976b6 3609 return TRUE;
252b5132
RH
3610}
3611
47b0e7ad
NC
3612static asection *
3613m32r_elf_gc_mark_hook (asection *sec,
3614 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3615 Elf_Internal_Rela *rel,
3616 struct elf_link_hash_entry *h,
3617 Elf_Internal_Sym *sym)
252b5132
RH
3618{
3619 if (h != NULL)
3620 {
3621 switch (ELF32_R_TYPE (rel->r_info))
3622 {
3623 case R_M32R_GNU_VTINHERIT:
3624 case R_M32R_GNU_VTENTRY:
6edf0760
NC
3625 case R_M32R_RELA_GNU_VTINHERIT:
3626 case R_M32R_RELA_GNU_VTENTRY:
252b5132 3627 break;
c3668558 3628
252b5132
RH
3629 default:
3630 switch (h->root.type)
3631 {
3632 case bfd_link_hash_defined:
3633 case bfd_link_hash_defweak:
3634 return h->root.u.def.section;
c3668558 3635
252b5132
RH
3636 case bfd_link_hash_common:
3637 return h->root.u.c.p->section;
e049a0de
ILT
3638
3639 default:
3640 break;
252b5132
RH
3641 }
3642 }
3643 }
3644 else
1e2f5b6e
AM
3645 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
3646
252b5132
RH
3647 return NULL;
3648}
3649
b34976b6 3650static bfd_boolean
47b0e7ad
NC
3651m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3652 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3653 asection *sec ATTRIBUTE_UNUSED,
3654 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3655{
6edf0760
NC
3656 /* Update the got entry reference counts for the section being removed. */
3657 Elf_Internal_Shdr *symtab_hdr;
3658 struct elf_link_hash_entry **sym_hashes;
3659 bfd_signed_vma *local_got_refcounts;
3660 const Elf_Internal_Rela *rel, *relend;
6edf0760
NC
3661
3662 elf_section_data (sec)->local_dynrel = NULL;
3663
3664 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3665 sym_hashes = elf_sym_hashes (abfd);
3666 local_got_refcounts = elf_local_got_refcounts (abfd);
3667
3668 relend = relocs + sec->reloc_count;
3669 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM
3670 {
3671 unsigned long r_symndx;
3672 struct elf_link_hash_entry *h = NULL;
6edf0760 3673
3eb128b2
AM
3674 r_symndx = ELF32_R_SYM (rel->r_info);
3675 if (r_symndx >= symtab_hdr->sh_info)
3676 {
3677 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3678 while (h->root.type == bfd_link_hash_indirect
3679 || h->root.type == bfd_link_hash_warning)
3680 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3681 }
6edf0760 3682
3eb128b2
AM
3683 switch (ELF32_R_TYPE (rel->r_info))
3684 {
3685 case R_M32R_GOT16_HI_ULO:
3686 case R_M32R_GOT16_HI_SLO:
3687 case R_M32R_GOT16_LO:
3688 case R_M32R_GOTOFF:
3689 case R_M32R_GOTOFF_HI_ULO:
3690 case R_M32R_GOTOFF_HI_SLO:
3691 case R_M32R_GOTOFF_LO:
3692 case R_M32R_GOT24:
3693 case R_M32R_GOTPC_HI_ULO:
3694 case R_M32R_GOTPC_HI_SLO:
3695 case R_M32R_GOTPC_LO:
3696 case R_M32R_GOTPC24:
3697 if (h != NULL)
3698 {
3699 if (h->got.refcount > 0)
3700 h->got.refcount--;
3701 }
3702 else
3703 {
3704 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3705 local_got_refcounts[r_symndx]--;
3706 }
3707 break;
3708
3709 case R_M32R_16_RELA:
3710 case R_M32R_24_RELA:
3711 case R_M32R_32_RELA:
157e7bd1 3712 case R_M32R_REL32:
3eb128b2
AM
3713 case R_M32R_HI16_ULO_RELA:
3714 case R_M32R_HI16_SLO_RELA:
3715 case R_M32R_LO16_RELA:
3716 case R_M32R_SDA16_RELA:
3717 case R_M32R_18_PCREL_RELA:
3718 case R_M32R_26_PCREL_RELA:
3719 if (h != NULL)
3720 {
3721 struct elf_m32r_link_hash_entry *eh;
3722 struct elf_m32r_dyn_relocs **pp;
3723 struct elf_m32r_dyn_relocs *p;
6edf0760 3724
3eb128b2
AM
3725 if (!info->shared && h->plt.refcount > 0)
3726 h->plt.refcount -= 1;
6edf0760 3727
3eb128b2 3728 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3729
3eb128b2
AM
3730 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3731 if (p->sec == sec)
3732 {
3733 if (ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
157e7bd1
NC
3734 || ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3735 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3eb128b2
AM
3736 p->pc_count -= 1;
3737 p->count -= 1;
3738 if (p->count == 0)
3739 *pp = p->next;
3740 break;
3741 }
3742 }
3743 break;
6edf0760 3744
3eb128b2
AM
3745 case R_M32R_26_PLTREL:
3746 if (h != NULL)
3747 {
3748 if (h->plt.refcount > 0)
3749 h->plt.refcount--;
3750 }
3751 break;
6edf0760 3752
3eb128b2
AM
3753 default:
3754 break;
3755 }
3756 }
6edf0760 3757
b34976b6 3758 return TRUE;
252b5132
RH
3759}
3760
252b5132
RH
3761/* Look through the relocs for a section during the first phase.
3762 Since we don't do .gots or .plts, we just need to consider the
3763 virtual table relocs for gc. */
c3668558 3764
b34976b6 3765static bfd_boolean
47b0e7ad
NC
3766m32r_elf_check_relocs (bfd *abfd,
3767 struct bfd_link_info *info,
3768 asection *sec,
3769 const Elf_Internal_Rela *relocs)
252b5132
RH
3770{
3771 Elf_Internal_Shdr *symtab_hdr;
3772 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3773 const Elf_Internal_Rela *rel;
3774 const Elf_Internal_Rela *rel_end;
6edf0760
NC
3775 struct elf_m32r_link_hash_table *htab;
3776 bfd *dynobj;
3777 bfd_vma *local_got_offsets;
3778 asection *sgot, *srelgot, *sreloc;
c3668558 3779
1049f94e 3780 if (info->relocatable)
b34976b6 3781 return TRUE;
c3668558 3782
6edf0760
NC
3783 sgot = srelgot = sreloc = NULL;
3784
252b5132
RH
3785 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3786 sym_hashes = elf_sym_hashes (abfd);
c3668558 3787 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
252b5132
RH
3788 if (!elf_bad_symtab (abfd))
3789 sym_hashes_end -= symtab_hdr->sh_info;
c3668558 3790
6edf0760
NC
3791 htab = m32r_elf_hash_table (info);
3792 dynobj = htab->root.dynobj;
3793 local_got_offsets = elf_local_got_offsets (abfd);
3794
252b5132
RH
3795 rel_end = relocs + sec->reloc_count;
3796 for (rel = relocs; rel < rel_end; rel++)
3797 {
6edf0760 3798 int r_type;
252b5132
RH
3799 struct elf_link_hash_entry *h;
3800 unsigned long r_symndx;
c3668558 3801
252b5132 3802 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3803 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH
3804 if (r_symndx < symtab_hdr->sh_info)
3805 h = NULL;
3806 else
973a3492
L
3807 {
3808 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3809 while (h->root.type == bfd_link_hash_indirect
3810 || h->root.type == bfd_link_hash_warning)
3811 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3812 }
c3668558 3813
6edf0760
NC
3814 /* Some relocs require a global offset table. */
3815 if (htab->sgot == NULL)
3816 {
3817 switch (r_type)
3818 {
3819 case R_M32R_GOT16_HI_ULO:
3820 case R_M32R_GOT16_HI_SLO:
097f809a
NC
3821 case R_M32R_GOTOFF:
3822 case R_M32R_GOTOFF_HI_ULO:
3823 case R_M32R_GOTOFF_HI_SLO:
3824 case R_M32R_GOTOFF_LO:
6edf0760
NC
3825 case R_M32R_GOT16_LO:
3826 case R_M32R_GOTPC24:
3827 case R_M32R_GOTPC_HI_ULO:
3828 case R_M32R_GOTPC_HI_SLO:
3829 case R_M32R_GOTPC_LO:
3830 case R_M32R_GOT24:
3831 if (dynobj == NULL)
3832 htab->root.dynobj = dynobj = abfd;
3833 if (! create_got_section (dynobj, info))
3834 return FALSE;
3835 break;
3836
3837 default:
3838 break;
3839 }
3840 }
3841
3842 switch (r_type)
252b5132 3843 {
6edf0760
NC
3844 case R_M32R_GOT16_HI_ULO:
3845 case R_M32R_GOT16_HI_SLO:
41978308 3846 case R_M32R_GOT16_LO:
6edf0760
NC
3847 case R_M32R_GOT24:
3848
3849 if (h != NULL)
3850 h->got.refcount += 1;
3851 else
3852 {
3853 bfd_signed_vma *local_got_refcounts;
3854
3855 /* This is a global offset table entry for a local
3856 symbol. */
3857 local_got_refcounts = elf_local_got_refcounts (abfd);
3858 if (local_got_refcounts == NULL)
3859 {
3860 bfd_size_type size;
3861
3862 size = symtab_hdr->sh_info;
3863 size *= sizeof (bfd_signed_vma);
47b0e7ad 3864 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC
3865 if (local_got_refcounts == NULL)
3866 return FALSE;
3867 elf_local_got_refcounts (abfd) = local_got_refcounts;
3868 }
3869 local_got_refcounts[r_symndx] += 1;
3870 }
3871 break;
3872
3873 case R_M32R_26_PLTREL:
3874 /* This symbol requires a procedure linkage table entry. We
3875 actually build the entry in adjust_dynamic_symbol,
3876 because this might be a case of linking PIC code without
3877 linking in any dynamic objects, in which case we don't
3878 need to generate a procedure linkage table after all. */
41978308 3879
6edf0760
NC
3880 /* If this is a local symbol, we resolve it directly without
3881 creating a procedure linkage table entry. */
3882 if (h == NULL)
3883 continue;
3884
f5385ebf 3885 if (h->forced_local)
6edf0760
NC
3886 break;
3887
f5385ebf 3888 h->needs_plt = 1;
6edf0760
NC
3889 h->plt.refcount += 1;
3890 break;
3891
3892 case R_M32R_16_RELA:
3893 case R_M32R_24_RELA:
3894 case R_M32R_32_RELA:
157e7bd1 3895 case R_M32R_REL32:
6edf0760
NC
3896 case R_M32R_HI16_ULO_RELA:
3897 case R_M32R_HI16_SLO_RELA:
3898 case R_M32R_LO16_RELA:
3899 case R_M32R_SDA16_RELA:
3900 case R_M32R_18_PCREL_RELA:
3901 case R_M32R_26_PCREL_RELA:
3902
3903 if (h != NULL && !info->shared)
3904 {
f5385ebf 3905 h->non_got_ref = 1;
6edf0760
NC
3906 h->plt.refcount += 1;
3907 }
3908
3909 /* If we are creating a shared library, and this is a reloc
3910 against a global symbol, or a non PC relative reloc
3911 against a local symbol, then we need to copy the reloc
3912 into the shared library. However, if we are linking with
3913 -Bsymbolic, we do not need to copy a reloc against a
3914 global symbol which is defined in an object we are
3915 including in the link (i.e., DEF_REGULAR is set). At
3916 this point we have not seen all the input files, so it is
3917 possible that DEF_REGULAR is not set now but will be set
3918 later (it is never cleared). We account for that
3919 possibility below by storing information in the
3920 dyn_relocs field of the hash table entry. A similar
3921 situation occurs when creating shared libraries and symbol
3922 visibility changes render the symbol local.
3923
3924 If on the other hand, we are creating an executable, we
3925 may need to keep relocations for symbols satisfied by a
3926 dynamic library if we manage to avoid copy relocs for the
3927 symbol. */
3928 if ((info->shared
3929 && (sec->flags & SEC_ALLOC) != 0
3930 && ((r_type != R_M32R_26_PCREL_RELA
157e7bd1
NC
3931 && r_type != R_M32R_18_PCREL_RELA
3932 && r_type != R_M32R_REL32)
6edf0760
NC
3933 || (h != NULL
3934 && (! info->symbolic
3935 || h->root.type == bfd_link_hash_defweak
f5385ebf 3936 || !h->def_regular))))
6edf0760
NC
3937 || (!info->shared
3938 && (sec->flags & SEC_ALLOC) != 0
3939 && h != NULL
3940 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3941 || !h->def_regular)))
6edf0760
NC
3942 {
3943 struct elf_m32r_dyn_relocs *p;
3944 struct elf_m32r_dyn_relocs **head;
3945
3946 if (dynobj == NULL)
3947 htab->root.dynobj = dynobj = abfd;
3948
3949 /* When creating a shared object, we must copy these
3950 relocs into the output file. We create a reloc
3951 section in dynobj and make room for the reloc. */
3952 if (sreloc == NULL)
3953 {
3954 const char *name;
41978308 3955
6edf0760
NC
3956 name = (bfd_elf_string_from_elf_section
3957 (abfd,
3958 elf_elfheader (abfd)->e_shstrndx,
3959 elf_section_data (sec)->rel_hdr.sh_name));
3960 if (name == NULL)
3961 return FALSE;
41978308 3962
6edf0760
NC
3963 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
3964 && strcmp (bfd_get_section_name (abfd, sec),
3965 name + 5) == 0);
41978308 3966
6edf0760
NC
3967 sreloc = bfd_get_section_by_name (dynobj, name);
3968 if (sreloc == NULL)
3969 {
3970 flagword flags;
41978308 3971
6edf0760
NC
3972 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3973 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3974 if ((sec->flags & SEC_ALLOC) != 0)
3975 flags |= SEC_ALLOC | SEC_LOAD;
3496cb2a
L
3976 sreloc = bfd_make_section_with_flags (dynobj,
3977 name,
3978 flags);
6edf0760 3979 if (sreloc == NULL
6edf0760
NC
3980 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
3981 return FALSE;
3982 }
3983 elf_section_data (sec)->sreloc = sreloc;
3984 }
41978308 3985
6edf0760
NC
3986 /* If this is a global symbol, we count the number of
3987 relocations we need for this symbol. */
3988 if (h != NULL)
3989 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3990 else
3991 {
3992 asection *s;
6edfbbad 3993 void *vpp;
6edf0760
NC
3994
3995 /* Track dynamic relocs needed for local syms too. */
3996 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3997 sec, r_symndx);
3998 if (s == NULL)
3999 return FALSE;
4000
6edfbbad
DJ
4001 vpp = &elf_section_data (s)->local_dynrel;
4002 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC
4003 }
4004
4005 p = *head;
4006 if (p == NULL || p->sec != sec)
4007 {
4008 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC
4009
4010 p = bfd_alloc (dynobj, amt);
6edf0760
NC
4011 if (p == NULL)
4012 return FALSE;
4013 p->next = *head;
4014 *head = p;
4015 p->sec = sec;
4016 p->count = 0;
4017 p->pc_count = 0;
4018 }
4019
4020 p->count += 1;
4021 if (ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
a9b7b174 4022 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32
6edf0760
NC
4023 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA)
4024 p->pc_count += 1;
4025 }
4026 break;
4027
252b5132
RH
4028 /* This relocation describes the C++ object vtable hierarchy.
4029 Reconstruct it for later use during GC. */
6edf0760 4030 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 4031 case R_M32R_GNU_VTINHERIT:
c152c796 4032 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4033 return FALSE;
252b5132 4034 break;
c3668558 4035
252b5132
RH
4036 /* This relocation describes which C++ vtable entries are actually
4037 used. Record for later use during GC. */
4038 case R_M32R_GNU_VTENTRY:
c152c796 4039 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 4040 return FALSE;
252b5132 4041 break;
6edf0760 4042 case R_M32R_RELA_GNU_VTENTRY:
c152c796 4043 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC
4044 return FALSE;
4045 break;
252b5132
RH
4046 }
4047 }
c3668558 4048
b34976b6 4049 return TRUE;
252b5132 4050}
2f89ff8d 4051
b35d266b 4052static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 4053{
7dcb9820 4054 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
551b43fd
AM
4055 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4056 { NULL, 0, 0, 0, 0 }
7f4d3958
L
4057};
4058
6edf0760 4059static bfd_boolean
47b0e7ad
NC
4060m32r_elf_fake_sections (bfd *abfd,
4061 Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED,
4062 asection *sec)
6edf0760 4063{
47b0e7ad 4064 const char *name;
6edf0760
NC
4065
4066 name = bfd_get_section_name (abfd, sec);
4067
4068 /* The generic elf_fake_sections will set up REL_HDR using the
4069 default kind of relocations. But, we may actually need both
4070 kinds of relocations, so we set up the second header here.
4071
4072 This is not necessary for the O32 ABI since that only uses Elf32_Rel
4073 relocations (cf. System V ABI, MIPS RISC Processor Supplement,
4074 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
4075 of the resulting empty .rela.<section> sections starts with
4076 sh_offset == object size, and ld doesn't allow that. While the check
4077 is arguably bogus for empty or SHT_NOBITS sections, it can easily be
4078 avoided by not emitting those useless sections in the first place. */
4079 if ((sec->flags & SEC_RELOC) != 0)
4080 {
4081 struct bfd_elf_section_data *esd;
4082 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
4083
4084 esd = elf_section_data (sec);
4085 BFD_ASSERT (esd->rel_hdr2 == NULL);
47b0e7ad 4086 esd->rel_hdr2 = bfd_zalloc (abfd, amt);
6edf0760
NC
4087 if (!esd->rel_hdr2)
4088 return FALSE;
4089 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
4090 !sec->use_rela_p);
4091 }
4092
4093 return TRUE;
4094}
4095
4096static enum elf_reloc_type_class
47b0e7ad 4097m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
6edf0760
NC
4098{
4099 switch ((int) ELF32_R_TYPE (rela->r_info))
4100 {
47b0e7ad
NC
4101 case R_M32R_RELATIVE: return reloc_class_relative;
4102 case R_M32R_JMP_SLOT: return reloc_class_plt;
4103 case R_M32R_COPY: return reloc_class_copy;
4104 default: return reloc_class_normal;
6edf0760
NC
4105 }
4106}
252b5132 4107\f
252b5132 4108#define ELF_ARCH bfd_arch_m32r
aa4f99bb
AO
4109#define ELF_MACHINE_CODE EM_M32R
4110#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4111#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132
RH
4112
4113#define TARGET_BIG_SYM bfd_elf32_m32r_vec
4114#define TARGET_BIG_NAME "elf32-m32r"
6edf0760
NC
4115#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4116#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4117
6edf0760 4118#define elf_info_to_howto m32r_info_to_howto
252b5132
RH
4119#define elf_info_to_howto_rel m32r_info_to_howto_rel
4120#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4121#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4122#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4123#define elf_backend_relocate_section m32r_elf_relocate_section
4124#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4125#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4126#define elf_backend_check_relocs m32r_elf_check_relocs
4127
6edf0760
NC
4128#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4129#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4130#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4131#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4132#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4133#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4134#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4135#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4136
252b5132 4137#define elf_backend_can_gc_sections 1
6edf0760 4138/*#if !USE_REL
b491616a 4139#define elf_backend_rela_normal 1
6edf0760
NC
4140#endif*/
4141#define elf_backend_can_refcount 1
4142#define elf_backend_want_got_plt 1
4143#define elf_backend_plt_readonly 1
4144#define elf_backend_want_plt_sym 0
4145#define elf_backend_got_header_size 12
4146
4147#define elf_backend_may_use_rel_p 1
4148#ifdef USE_M32R_OLD_RELOC
4149#define elf_backend_default_use_rela_p 0
4150#define elf_backend_may_use_rela_p 0
4151#else
4152#define elf_backend_default_use_rela_p 1
4153#define elf_backend_may_use_rela_p 1
4154#define elf_backend_fake_sections m32r_elf_fake_sections
b491616a 4155#endif
6edf0760 4156
252b5132
RH
4157#define elf_backend_object_p m32r_elf_object_p
4158#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH
4159#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4160#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4161#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4162#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4163
252b5132 4164#include "elf32-target.h"
6edf0760 4165
47b0e7ad 4166#undef ELF_MAXPAGESIZE
6edf0760
NC
4167#define ELF_MAXPAGESIZE 0x1000
4168
47b0e7ad 4169#undef TARGET_BIG_SYM
6edf0760 4170#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
47b0e7ad 4171#undef TARGET_BIG_NAME
6edf0760 4172#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4173#undef TARGET_LITTLE_SYM
6edf0760 4174#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
47b0e7ad 4175#undef TARGET_LITTLE_NAME
6edf0760 4176#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4177#undef elf32_bed
6edf0760
NC
4178#define elf32_bed elf32_m32r_lin_bed
4179
4180#include "elf32-target.h"
4181
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