* pe-dll.c (build_filler_bfd): Conform error message to standard.
[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:
8ce757c4 2881 case R_M32R_10_PCREL_RELA:
6edf0760
NC
2882 case R_M32R_18_PCREL_RELA:
2883 case R_M32R_26_PCREL_RELA:
2884 case R_M32R_HI16_ULO_RELA:
2885 case R_M32R_LO16_RELA:
6edf0760
NC
2886 if (info->shared
2887 && r_symndx != 0
2888 && (input_section->flags & SEC_ALLOC) != 0
8ce757c4
NC
2889 && (( r_type != R_M32R_10_PCREL_RELA
2890 && r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC
2891 && r_type != R_M32R_26_PCREL_RELA
2892 && r_type != R_M32R_REL32)
6edf0760
NC
2893 || (h != NULL
2894 && h->dynindx != -1
2895 && (! info->symbolic
f5385ebf 2896 || !h->def_regular))))
6edf0760
NC
2897 {
2898 Elf_Internal_Rela outrel;
2899 bfd_boolean skip, relocate;
2900 bfd_byte *loc;
41978308 2901
6edf0760
NC
2902 /* When generating a shared object, these relocations
2903 are copied into the output file to be resolved at run
2904 time. */
6edf0760
NC
2905 if (sreloc == NULL)
2906 {
2907 const char *name;
41978308 2908
6edf0760
NC
2909 name = (bfd_elf_string_from_elf_section
2910 (input_bfd,
2911 elf_elfheader (input_bfd)->e_shstrndx,
2912 elf_section_data (input_section)->rel_hdr.sh_name));
2913 if (name == NULL)
2914 return FALSE;
41978308 2915
6edf0760
NC
2916 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2917 && strcmp (bfd_get_section_name (input_bfd,
2918 input_section),
2919 name + 5) == 0);
41978308 2920
6edf0760
NC
2921 sreloc = bfd_get_section_by_name (dynobj, name);
2922 BFD_ASSERT (sreloc != NULL);
2923 }
41978308 2924
6edf0760
NC
2925 skip = FALSE;
2926 relocate = FALSE;
41978308 2927
6edf0760
NC
2928 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2929 info,
2930 input_section,
2931 rel->r_offset);
2932 if (outrel.r_offset == (bfd_vma) -1)
2933 skip = TRUE;
2934 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2935 skip = relocate = TRUE;
6edf0760
NC
2936 outrel.r_offset += (input_section->output_section->vma
2937 + input_section->output_offset);
41978308 2938
6edf0760
NC
2939 if (skip)
2940 memset (&outrel, 0, sizeof outrel);
8ce757c4
NC
2941 else if ( r_type == R_M32R_10_PCREL_RELA
2942 || r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC
2943 || r_type == R_M32R_26_PCREL_RELA
2944 || r_type == R_M32R_REL32)
6edf0760
NC
2945 {
2946 BFD_ASSERT (h != NULL && h->dynindx != -1);
2947 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2948 outrel.r_addend = rel->r_addend;
2949 }
2950 else
2951 {
2952 /* h->dynindx may be -1 if this symbol was marked to
2953 become local. */
2954 if (h == NULL
2955 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2956 && h->def_regular))
6edf0760
NC
2957 {
2958 relocate = TRUE;
2959 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2960 outrel.r_addend = relocation + rel->r_addend;
2961 }
2962 else
2963 {
2964 BFD_ASSERT (h->dynindx != -1);
2965 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2966 outrel.r_addend = relocation + rel->r_addend;
2967 }
2968 }
2969
2970 loc = sreloc->contents;
47b0e7ad 2971 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2972 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2973 ++sreloc->reloc_count;
2974
2975 /* If this reloc is against an external symbol, we do
2976 not want to fiddle with the addend. Otherwise, we
2977 need to include the symbol value so that it becomes
2978 an addend for the dynamic reloc. */
2979 if (! relocate)
2980 continue;
8ce757c4 2981 break;
6edf0760 2982 }
8ce757c4
NC
2983 else if (r_type != R_M32R_10_PCREL_RELA)
2984 break;
2985 /* Fall through. */
41978308 2986
252b5132
RH
2987 case (int) R_M32R_10_PCREL :
2988 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2989 contents, offset,
2990 sec, relocation, addend);
6edf0760 2991 goto check_reloc;
252b5132
RH
2992
2993 case (int) R_M32R_HI16_SLO :
2994 case (int) R_M32R_HI16_ULO :
2995 {
2996 Elf_Internal_Rela *lorel;
2997
2998 /* We allow an arbitrary number of HI16 relocs before the
2999 LO16 reloc. This permits gcc to emit the HI and LO relocs
3000 itself. */
3001 for (lorel = rel + 1;
3002 (lorel < relend
3003 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
3004 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
3005 lorel++)
3006 continue;
3007 if (lorel < relend
3008 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3009 {
3010 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3011 contents, relocation + addend);
3012 r = bfd_reloc_ok;
3013 }
3014 else
3015 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3016 contents, offset,
3017 relocation, addend);
3018 }
6edf0760
NC
3019
3020 goto check_reloc;
252b5132 3021
af705ba8 3022 case (int) R_M32R_SDA16_RELA:
252b5132
RH
3023 case (int) R_M32R_SDA16 :
3024 {
3025 const char *name;
3026
3027 BFD_ASSERT (sec != NULL);
3028 name = bfd_get_section_name (abfd, sec);
3029
47b0e7ad 3030 if ( strcmp (name, ".sdata") == 0
252b5132
RH
3031 || strcmp (name, ".sbss") == 0
3032 || strcmp (name, ".scommon") == 0)
3033 {
3034 bfd_vma sda_base;
3035 bfd *out_bfd = sec->output_section->owner;
3036
3037 r = m32r_elf_final_sda_base (out_bfd, info,
3038 &errmsg,
3039 &sda_base);
3040 if (r != bfd_reloc_ok)
3041 {
b34976b6 3042 ret = FALSE;
252b5132
RH
3043 goto check_reloc;
3044 }
3045
3046 /* At this point `relocation' contains the object's
3047 address. */
3048 relocation -= sda_base;
3049 /* Now it contains the offset from _SDA_BASE_. */
3050 }
3051 else
3052 {
8f615d07 3053 (*_bfd_error_handler)
d003868e
AM
3054 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3055 input_bfd,
3056 sec,
8f615d07 3057 sym_name,
d003868e 3058 m32r_elf_howto_table[(int) r_type].name);
252b5132 3059 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3060 ret = FALSE;
252b5132
RH
3061 continue;
3062 }
3063 }
47b0e7ad 3064 /* Fall through. */
6edf0760
NC
3065
3066 default : /* OLD_M32R_RELOC */
252b5132 3067
252b5132
RH
3068 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3069 contents, offset,
3070 relocation, addend);
6edf0760 3071 goto check_reloc;
252b5132 3072 }
6edf0760
NC
3073
3074 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3075 contents, rel->r_offset,
3076 relocation, rel->r_addend);
3077
252b5132
RH
3078 }
3079
3080 check_reloc:
3081
3082 if (r != bfd_reloc_ok)
3083 {
3084 /* FIXME: This should be generic enough to go in a utility. */
3085 const char *name;
3086
3087 if (h != NULL)
3088 name = h->root.root.string;
3089 else
3090 {
3091 name = (bfd_elf_string_from_elf_section
3092 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3093 if (name == NULL || *name == '\0')
3094 name = bfd_section_name (input_bfd, sec);
3095 }
3096
3097 if (errmsg != NULL)
3098 goto common_error;
3099
3100 switch (r)
3101 {
3102 case bfd_reloc_overflow:
3103 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L
3104 (info, (h ? &h->root : NULL), name, howto->name,
3105 (bfd_vma) 0, input_bfd, input_section, offset)))
b34976b6 3106 return FALSE;
252b5132
RH
3107 break;
3108
3109 case bfd_reloc_undefined:
3110 if (! ((*info->callbacks->undefined_symbol)
3111 (info, name, input_bfd, input_section,
b34976b6
AM
3112 offset, TRUE)))
3113 return FALSE;
252b5132
RH
3114 break;
3115
3116 case bfd_reloc_outofrange:
3117 errmsg = _("internal error: out of range error");
3118 goto common_error;
3119
3120 case bfd_reloc_notsupported:
3121 errmsg = _("internal error: unsupported relocation error");
3122 goto common_error;
3123
3124 case bfd_reloc_dangerous:
3125 errmsg = _("internal error: dangerous error");
3126 goto common_error;
3127
3128 default:
3129 errmsg = _("internal error: unknown error");
3130 /* fall through */
3131
3132 common_error:
3133 if (!((*info->callbacks->warning)
3134 (info, errmsg, name, input_bfd, input_section,
3135 offset)))
b34976b6 3136 return FALSE;
252b5132
RH
3137 break;
3138 }
3139 }
3140 }
3141
3142 return ret;
3143}
6edf0760
NC
3144
3145/* Finish up dynamic symbol handling. We set the contents of various
3146 dynamic sections here. */
47b0e7ad 3147
6edf0760 3148static bfd_boolean
47b0e7ad
NC
3149m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3150 struct bfd_link_info *info,
3151 struct elf_link_hash_entry *h,
3152 Elf_Internal_Sym *sym)
6edf0760
NC
3153{
3154 struct elf_m32r_link_hash_table *htab;
3155 bfd *dynobj;
3156 bfd_byte *loc;
41978308 3157
6edf0760 3158#ifdef DEBUG_PIC
47b0e7ad 3159 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3160#endif
41978308 3161
6edf0760
NC
3162 htab = m32r_elf_hash_table (info);
3163 dynobj = htab->root.dynobj;
3164
3165 if (h->plt.offset != (bfd_vma) -1)
3166 {
3167 asection *splt;
3168 asection *sgot;
3169 asection *srela;
3170
3171 bfd_vma plt_index;
3172 bfd_vma got_offset;
3173 Elf_Internal_Rela rela;
41978308 3174
6edf0760
NC
3175 /* This symbol has an entry in the procedure linkage table. Set
3176 it up. */
41978308 3177
6edf0760 3178 BFD_ASSERT (h->dynindx != -1);
41978308 3179
6edf0760
NC
3180 splt = htab->splt;
3181 sgot = htab->sgotplt;
3182 srela = htab->srelplt;
3183 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3184
3185 /* Get the index in the procedure linkage table which
3186 corresponds to this symbol. This is the index of this symbol
3187 in all the symbols for which we are making plt entries. The
3188 first entry in the procedure linkage table is reserved. */
3189 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3190
3191 /* Get the offset into the .got table of the entry that
3192 corresponds to this function. Each .got entry is 4 bytes.
3193 The first three are reserved. */
3194 got_offset = (plt_index + 3) * 4;
3195
3196 /* Fill in the entry in the procedure linkage table. */
3197 if (! info->shared)
3198 {
3199 bfd_put_32 (output_bfd,
3200 (PLT_ENTRY_WORD0b
3201 + (((sgot->output_section->vma
3202 + sgot->output_offset
3203 + got_offset) >> 16) & 0xffff)),
3204 splt->contents + h->plt.offset);
3205 bfd_put_32 (output_bfd,
3206 (PLT_ENTRY_WORD1b
3207 + ((sgot->output_section->vma
3208 + sgot->output_offset
3209 + got_offset) & 0xffff)),
3210 splt->contents + h->plt.offset + 4);
3211 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3212 splt->contents + h->plt.offset + 8);
3213 bfd_put_32 (output_bfd,
3214 (PLT_ENTRY_WORD3
3215 + plt_index * sizeof (Elf32_External_Rela)),
3216 splt->contents + h->plt.offset + 12);
3217 bfd_put_32 (output_bfd,
3218 (PLT_ENTRY_WORD4
3219 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3220 splt->contents + h->plt.offset + 16);
3221 }
3222 else
3223 {
3224 bfd_put_32 (output_bfd,
3225 PLT_ENTRY_WORD0 + got_offset,
3226 splt->contents + h->plt.offset);
3227 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3228 splt->contents + h->plt.offset + 4);
3229 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3230 splt->contents + h->plt.offset + 8);
3231 bfd_put_32 (output_bfd,
3232 (PLT_ENTRY_WORD3
3233 + plt_index * sizeof (Elf32_External_Rela)),
3234 splt->contents + h->plt.offset + 12);
3235 bfd_put_32 (output_bfd,
3236 (PLT_ENTRY_WORD4
3237 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3238 splt->contents + h->plt.offset + 16);
3239 }
41978308 3240
6edf0760
NC
3241 /* Fill in the entry in the global offset table. */
3242 bfd_put_32 (output_bfd,
3243 (splt->output_section->vma
3244 + splt->output_offset
3245 + h->plt.offset
3246 + 12), /* same offset */
3247 sgot->contents + got_offset);
3248
3249 /* Fill in the entry in the .rela.plt section. */
3250 rela.r_offset = (sgot->output_section->vma
3251 + sgot->output_offset
3252 + got_offset);
3253 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3254 rela.r_addend = 0;
3255 loc = srela->contents;
47b0e7ad 3256 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3257 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3258
f5385ebf 3259 if (!h->def_regular)
6edf0760
NC
3260 {
3261 /* Mark the symbol as undefined, rather than as defined in
3262 the .plt section. Leave the value alone. */
3263 sym->st_shndx = SHN_UNDEF;
3264 }
3265 }
3266
3267 if (h->got.offset != (bfd_vma) -1)
3268 {
3269 asection *sgot;
3270 asection *srela;
3271 Elf_Internal_Rela rela;
41978308 3272
6edf0760
NC
3273 /* This symbol has an entry in the global offset table. Set it
3274 up. */
41978308 3275
6edf0760
NC
3276 sgot = htab->sgot;
3277 srela = htab->srelgot;
3278 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3279
6edf0760
NC
3280 rela.r_offset = (sgot->output_section->vma
3281 + sgot->output_offset
3282 + (h->got.offset &~ 1));
41978308 3283
6edf0760
NC
3284 /* If this is a -Bsymbolic link, and the symbol is defined
3285 locally, we just want to emit a RELATIVE reloc. Likewise if
3286 the symbol was forced to be local because of a version file.
3287 The entry in the global offset table will already have been
3288 initialized in the relocate_section function. */
3289 if (info->shared
3290 && (info->symbolic
3291 || h->dynindx == -1
f5385ebf
AM
3292 || h->forced_local)
3293 && h->def_regular)
6edf0760
NC
3294 {
3295 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3296 rela.r_addend = (h->root.u.def.value
3297 + h->root.u.def.section->output_section->vma
3298 + h->root.u.def.section->output_offset);
3299 }
3300 else
3301 {
47b0e7ad 3302 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC
3303 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3304 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3305 rela.r_addend = 0;
3306 }
41978308 3307
6edf0760 3308 loc = srela->contents;
47b0e7ad 3309 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3310 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3311 ++srela->reloc_count;
3312 }
41978308 3313
f5385ebf 3314 if (h->needs_copy)
6edf0760
NC
3315 {
3316 asection *s;
3317 Elf_Internal_Rela rela;
41978308 3318
6edf0760 3319 /* This symbols needs a copy reloc. Set it up. */
41978308 3320
6edf0760
NC
3321 BFD_ASSERT (h->dynindx != -1
3322 && (h->root.type == bfd_link_hash_defined
3323 || h->root.type == bfd_link_hash_defweak));
41978308 3324
6edf0760
NC
3325 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3326 ".rela.bss");
3327 BFD_ASSERT (s != NULL);
41978308 3328
6edf0760
NC
3329 rela.r_offset = (h->root.u.def.value
3330 + h->root.u.def.section->output_section->vma
3331 + h->root.u.def.section->output_offset);
3332 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3333 rela.r_addend = 0;
3334 loc = s->contents;
47b0e7ad 3335 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3336 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3337 ++s->reloc_count;
3338 }
41978308 3339
6edf0760
NC
3340 /* Mark some specially defined symbols as absolute. */
3341 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3342 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
3343 sym->st_shndx = SHN_ABS;
41978308 3344
6edf0760
NC
3345 return TRUE;
3346}
3347
3348
3349/* Finish up the dynamic sections. */
41978308 3350
6edf0760 3351static bfd_boolean
47b0e7ad
NC
3352m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3353 struct bfd_link_info *info)
6edf0760
NC
3354{
3355 struct elf_m32r_link_hash_table *htab;
3356 bfd *dynobj;
3357 asection *sdyn;
3358 asection *sgot;
3359
3360#ifdef DEBUG_PIC
47b0e7ad 3361 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3362#endif
41978308 3363
6edf0760
NC
3364 htab = m32r_elf_hash_table (info);
3365 dynobj = htab->root.dynobj;
3366
3367 sgot = htab->sgotplt;
3368 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
41978308 3369
6edf0760
NC
3370 if (htab->root.dynamic_sections_created)
3371 {
3372 asection *splt;
3373 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3374
6edf0760 3375 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3376
6edf0760 3377 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3378 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC
3379
3380 for (; dyncon < dynconend; dyncon++)
3381 {
3382 Elf_Internal_Dyn dyn;
3383 const char *name;
3384 asection *s;
41978308 3385
6edf0760 3386 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3387
6edf0760
NC
3388 switch (dyn.d_tag)
3389 {
3390 default:
3391 break;
3392
3393 case DT_PLTGOT:
3394 name = ".got";
41978308 3395 s = htab->sgot->output_section;
6edf0760
NC
3396 goto get_vma;
3397 case DT_JMPREL:
3398 name = ".rela.plt";
3399 s = htab->srelplt->output_section;
3400 get_vma:
3401 BFD_ASSERT (s != NULL);
3402 dyn.d_un.d_ptr = s->vma;
3403 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3404 break;
3405
3406 case DT_PLTRELSZ:
3407 s = htab->srelplt->output_section;
3408 BFD_ASSERT (s != NULL);
eea6121a 3409 dyn.d_un.d_val = s->size;
6edf0760
NC
3410 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3411 break;
3412
3413 case DT_RELASZ:
3414 /* My reading of the SVR4 ABI indicates that the
3415 procedure linkage table relocs (DT_JMPREL) should be
3416 included in the overall relocs (DT_RELA). This is
3417 what Solaris does. However, UnixWare can not handle
3418 that case. Therefore, we override the DT_RELASZ entry
3419 here to make it not include the JMPREL relocs. Since
3420 the linker script arranges for .rela.plt to follow all
3421 other relocation sections, we don't have to worry
3422 about changing the DT_RELA entry. */
3423 if (htab->srelplt != NULL)
3424 {
3425 s = htab->srelplt->output_section;
eea6121a 3426 dyn.d_un.d_val -= s->size;
6edf0760
NC
3427 }
3428 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3429 break;
3430 }
3431 }
41978308 3432
6edf0760
NC
3433 /* Fill in the first entry in the procedure linkage table. */
3434 splt = htab->splt;
eea6121a 3435 if (splt && splt->size > 0)
6edf0760
NC
3436 {
3437 if (info->shared)
3438 {
3439 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3440 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3441 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3442 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3443 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3444 }
3445 else
3446 {
3447 unsigned long addr;
3448 /* addr = .got + 4 */
3449 addr = sgot->output_section->vma + sgot->output_offset + 4;
3450 bfd_put_32 (output_bfd,
3451 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3452 splt->contents);
41978308 3453 bfd_put_32 (output_bfd,
6edf0760
NC
3454 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3455 splt->contents + 4);
3456 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3457 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3458 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3459 }
3460
3461 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3462 PLT_ENTRY_SIZE;
3463 }
3464 }
3465
3466 /* Fill in the first three entries in the global offset table. */
eea6121a 3467 if (sgot && sgot->size > 0)
6edf0760
NC
3468 {
3469 if (sdyn == NULL)
3470 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3471 else
3472 bfd_put_32 (output_bfd,
3473 sdyn->output_section->vma + sdyn->output_offset,
3474 sgot->contents);
3475 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3476 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3477
3478 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3479 }
41978308 3480
6edf0760
NC
3481 return TRUE;
3482}
3483
252b5132
RH
3484\f
3485/* Set the right machine number. */
47b0e7ad 3486
b34976b6 3487static bfd_boolean
47b0e7ad 3488m32r_elf_object_p (bfd *abfd)
252b5132
RH
3489{
3490 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3491 {
3492 default:
3493 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3494 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3495 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3496 }
b34976b6 3497 return TRUE;
252b5132
RH
3498}
3499
3500/* Store the machine number in the flags field. */
47b0e7ad 3501
252b5132 3502static void
47b0e7ad
NC
3503m32r_elf_final_write_processing (bfd *abfd,
3504 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH
3505{
3506 unsigned long val;
3507
3508 switch (bfd_get_mach (abfd))
3509 {
3510 default:
3511 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3512 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3513 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH
3514 }
3515
3516 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3517 elf_elfheader (abfd)->e_flags |= val;
3518}
3519
c3668558 3520/* Function to keep M32R specific file flags. */
47b0e7ad 3521
b34976b6 3522static bfd_boolean
47b0e7ad 3523m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH
3524{
3525 BFD_ASSERT (!elf_flags_init (abfd)
3526 || elf_elfheader (abfd)->e_flags == flags);
3527
3528 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM
3529 elf_flags_init (abfd) = TRUE;
3530 return TRUE;
252b5132
RH
3531}
3532
252b5132
RH
3533/* Merge backend specific data from an object file to the output
3534 object file when linking. */
47b0e7ad 3535
b34976b6 3536static bfd_boolean
47b0e7ad 3537m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH
3538{
3539 flagword out_flags;
3540 flagword in_flags;
3541
3542 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3543 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3544 return TRUE;
252b5132
RH
3545
3546 in_flags = elf_elfheader (ibfd)->e_flags;
3547 out_flags = elf_elfheader (obfd)->e_flags;
3548
3549 if (! elf_flags_init (obfd))
3550 {
3551 /* If the input is the default architecture then do not
3552 bother setting the flags for the output architecture,
3553 instead allow future merges to do this. If no future
3554 merges ever set these flags then they will retain their
3555 unitialised values, which surprise surprise, correspond
3556 to the default values. */
3557 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3558 return TRUE;
c3668558 3559
b34976b6 3560 elf_flags_init (obfd) = TRUE;
252b5132
RH
3561 elf_elfheader (obfd)->e_flags = in_flags;
3562
3563 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3564 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC
3565 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3566 bfd_get_mach (ibfd));
252b5132 3567
b34976b6 3568 return TRUE;
252b5132
RH
3569 }
3570
3571 /* Check flag compatibility. */
3572 if (in_flags == out_flags)
b34976b6 3573 return TRUE;
252b5132
RH
3574
3575 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3576 {
88845958
NC
3577 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3578 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3579 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3580 {
8f615d07 3581 (*_bfd_error_handler)
d003868e 3582 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH
3583
3584 bfd_set_error (bfd_error_bad_value);
b34976b6 3585 return FALSE;
252b5132
RH
3586 }
3587 }
3588
b34976b6 3589 return TRUE;
252b5132
RH
3590}
3591
47b0e7ad
NC
3592/* Display the flags field. */
3593
b34976b6 3594static bfd_boolean
47b0e7ad 3595m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH
3596{
3597 FILE * file = (FILE *) ptr;
c3668558 3598
f12123c0 3599 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3600
252b5132 3601 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3602
252b5132 3603 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3604
252b5132
RH
3605 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3606 {
3607 default:
3608 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3609 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3610 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3611 }
c3668558 3612
252b5132 3613 fputc ('\n', file);
c3668558 3614
b34976b6 3615 return TRUE;
252b5132
RH
3616}
3617
47b0e7ad
NC
3618static asection *
3619m32r_elf_gc_mark_hook (asection *sec,
3620 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3621 Elf_Internal_Rela *rel,
3622 struct elf_link_hash_entry *h,
3623 Elf_Internal_Sym *sym)
252b5132
RH
3624{
3625 if (h != NULL)
3626 {
3627 switch (ELF32_R_TYPE (rel->r_info))
3628 {
3629 case R_M32R_GNU_VTINHERIT:
3630 case R_M32R_GNU_VTENTRY:
6edf0760
NC
3631 case R_M32R_RELA_GNU_VTINHERIT:
3632 case R_M32R_RELA_GNU_VTENTRY:
252b5132 3633 break;
c3668558 3634
252b5132
RH
3635 default:
3636 switch (h->root.type)
3637 {
3638 case bfd_link_hash_defined:
3639 case bfd_link_hash_defweak:
3640 return h->root.u.def.section;
c3668558 3641
252b5132
RH
3642 case bfd_link_hash_common:
3643 return h->root.u.c.p->section;
e049a0de
ILT
3644
3645 default:
3646 break;
252b5132
RH
3647 }
3648 }
3649 }
3650 else
1e2f5b6e
AM
3651 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
3652
252b5132
RH
3653 return NULL;
3654}
3655
b34976b6 3656static bfd_boolean
47b0e7ad
NC
3657m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3658 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3659 asection *sec ATTRIBUTE_UNUSED,
3660 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3661{
6edf0760
NC
3662 /* Update the got entry reference counts for the section being removed. */
3663 Elf_Internal_Shdr *symtab_hdr;
3664 struct elf_link_hash_entry **sym_hashes;
3665 bfd_signed_vma *local_got_refcounts;
3666 const Elf_Internal_Rela *rel, *relend;
6edf0760
NC
3667
3668 elf_section_data (sec)->local_dynrel = NULL;
3669
3670 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3671 sym_hashes = elf_sym_hashes (abfd);
3672 local_got_refcounts = elf_local_got_refcounts (abfd);
3673
3674 relend = relocs + sec->reloc_count;
3675 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM
3676 {
3677 unsigned long r_symndx;
3678 struct elf_link_hash_entry *h = NULL;
6edf0760 3679
3eb128b2
AM
3680 r_symndx = ELF32_R_SYM (rel->r_info);
3681 if (r_symndx >= symtab_hdr->sh_info)
3682 {
3683 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3684 while (h->root.type == bfd_link_hash_indirect
3685 || h->root.type == bfd_link_hash_warning)
3686 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3687 }
6edf0760 3688
3eb128b2
AM
3689 switch (ELF32_R_TYPE (rel->r_info))
3690 {
3691 case R_M32R_GOT16_HI_ULO:
3692 case R_M32R_GOT16_HI_SLO:
3693 case R_M32R_GOT16_LO:
3694 case R_M32R_GOTOFF:
3695 case R_M32R_GOTOFF_HI_ULO:
3696 case R_M32R_GOTOFF_HI_SLO:
3697 case R_M32R_GOTOFF_LO:
3698 case R_M32R_GOT24:
3699 case R_M32R_GOTPC_HI_ULO:
3700 case R_M32R_GOTPC_HI_SLO:
3701 case R_M32R_GOTPC_LO:
3702 case R_M32R_GOTPC24:
3703 if (h != NULL)
3704 {
3705 if (h->got.refcount > 0)
3706 h->got.refcount--;
3707 }
3708 else
3709 {
3710 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3711 local_got_refcounts[r_symndx]--;
3712 }
3713 break;
3714
3715 case R_M32R_16_RELA:
3716 case R_M32R_24_RELA:
3717 case R_M32R_32_RELA:
157e7bd1 3718 case R_M32R_REL32:
3eb128b2
AM
3719 case R_M32R_HI16_ULO_RELA:
3720 case R_M32R_HI16_SLO_RELA:
3721 case R_M32R_LO16_RELA:
3722 case R_M32R_SDA16_RELA:
8ce757c4 3723 case R_M32R_10_PCREL_RELA:
3eb128b2
AM
3724 case R_M32R_18_PCREL_RELA:
3725 case R_M32R_26_PCREL_RELA:
3726 if (h != NULL)
3727 {
3728 struct elf_m32r_link_hash_entry *eh;
3729 struct elf_m32r_dyn_relocs **pp;
3730 struct elf_m32r_dyn_relocs *p;
6edf0760 3731
3eb128b2
AM
3732 if (!info->shared && h->plt.refcount > 0)
3733 h->plt.refcount -= 1;
6edf0760 3734
3eb128b2 3735 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3736
3eb128b2
AM
3737 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3738 if (p->sec == sec)
3739 {
8ce757c4
NC
3740 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3741 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3742 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
157e7bd1 3743 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3eb128b2
AM
3744 p->pc_count -= 1;
3745 p->count -= 1;
3746 if (p->count == 0)
3747 *pp = p->next;
3748 break;
3749 }
3750 }
3751 break;
6edf0760 3752
3eb128b2
AM
3753 case R_M32R_26_PLTREL:
3754 if (h != NULL)
3755 {
3756 if (h->plt.refcount > 0)
3757 h->plt.refcount--;
3758 }
3759 break;
6edf0760 3760
3eb128b2
AM
3761 default:
3762 break;
3763 }
3764 }
6edf0760 3765
b34976b6 3766 return TRUE;
252b5132
RH
3767}
3768
252b5132
RH
3769/* Look through the relocs for a section during the first phase.
3770 Since we don't do .gots or .plts, we just need to consider the
3771 virtual table relocs for gc. */
c3668558 3772
b34976b6 3773static bfd_boolean
47b0e7ad
NC
3774m32r_elf_check_relocs (bfd *abfd,
3775 struct bfd_link_info *info,
3776 asection *sec,
3777 const Elf_Internal_Rela *relocs)
252b5132
RH
3778{
3779 Elf_Internal_Shdr *symtab_hdr;
3780 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3781 const Elf_Internal_Rela *rel;
3782 const Elf_Internal_Rela *rel_end;
6edf0760
NC
3783 struct elf_m32r_link_hash_table *htab;
3784 bfd *dynobj;
3785 bfd_vma *local_got_offsets;
3786 asection *sgot, *srelgot, *sreloc;
c3668558 3787
1049f94e 3788 if (info->relocatable)
b34976b6 3789 return TRUE;
c3668558 3790
6edf0760
NC
3791 sgot = srelgot = sreloc = NULL;
3792
252b5132
RH
3793 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3794 sym_hashes = elf_sym_hashes (abfd);
c3668558 3795 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
252b5132
RH
3796 if (!elf_bad_symtab (abfd))
3797 sym_hashes_end -= symtab_hdr->sh_info;
c3668558 3798
6edf0760
NC
3799 htab = m32r_elf_hash_table (info);
3800 dynobj = htab->root.dynobj;
3801 local_got_offsets = elf_local_got_offsets (abfd);
3802
252b5132
RH
3803 rel_end = relocs + sec->reloc_count;
3804 for (rel = relocs; rel < rel_end; rel++)
3805 {
6edf0760 3806 int r_type;
252b5132
RH
3807 struct elf_link_hash_entry *h;
3808 unsigned long r_symndx;
c3668558 3809
252b5132 3810 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3811 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH
3812 if (r_symndx < symtab_hdr->sh_info)
3813 h = NULL;
3814 else
973a3492
L
3815 {
3816 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3817 while (h->root.type == bfd_link_hash_indirect
3818 || h->root.type == bfd_link_hash_warning)
3819 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3820 }
c3668558 3821
6edf0760
NC
3822 /* Some relocs require a global offset table. */
3823 if (htab->sgot == NULL)
3824 {
3825 switch (r_type)
3826 {
3827 case R_M32R_GOT16_HI_ULO:
3828 case R_M32R_GOT16_HI_SLO:
097f809a
NC
3829 case R_M32R_GOTOFF:
3830 case R_M32R_GOTOFF_HI_ULO:
3831 case R_M32R_GOTOFF_HI_SLO:
3832 case R_M32R_GOTOFF_LO:
6edf0760
NC
3833 case R_M32R_GOT16_LO:
3834 case R_M32R_GOTPC24:
3835 case R_M32R_GOTPC_HI_ULO:
3836 case R_M32R_GOTPC_HI_SLO:
3837 case R_M32R_GOTPC_LO:
3838 case R_M32R_GOT24:
3839 if (dynobj == NULL)
3840 htab->root.dynobj = dynobj = abfd;
3841 if (! create_got_section (dynobj, info))
3842 return FALSE;
3843 break;
3844
3845 default:
3846 break;
3847 }
3848 }
3849
3850 switch (r_type)
252b5132 3851 {
6edf0760
NC
3852 case R_M32R_GOT16_HI_ULO:
3853 case R_M32R_GOT16_HI_SLO:
41978308 3854 case R_M32R_GOT16_LO:
6edf0760
NC
3855 case R_M32R_GOT24:
3856
3857 if (h != NULL)
3858 h->got.refcount += 1;
3859 else
3860 {
3861 bfd_signed_vma *local_got_refcounts;
3862
3863 /* This is a global offset table entry for a local
3864 symbol. */
3865 local_got_refcounts = elf_local_got_refcounts (abfd);
3866 if (local_got_refcounts == NULL)
3867 {
3868 bfd_size_type size;
3869
3870 size = symtab_hdr->sh_info;
3871 size *= sizeof (bfd_signed_vma);
47b0e7ad 3872 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC
3873 if (local_got_refcounts == NULL)
3874 return FALSE;
3875 elf_local_got_refcounts (abfd) = local_got_refcounts;
3876 }
3877 local_got_refcounts[r_symndx] += 1;
3878 }
3879 break;
3880
3881 case R_M32R_26_PLTREL:
3882 /* This symbol requires a procedure linkage table entry. We
3883 actually build the entry in adjust_dynamic_symbol,
3884 because this might be a case of linking PIC code without
3885 linking in any dynamic objects, in which case we don't
3886 need to generate a procedure linkage table after all. */
41978308 3887
6edf0760
NC
3888 /* If this is a local symbol, we resolve it directly without
3889 creating a procedure linkage table entry. */
3890 if (h == NULL)
3891 continue;
3892
f5385ebf 3893 if (h->forced_local)
6edf0760
NC
3894 break;
3895
f5385ebf 3896 h->needs_plt = 1;
6edf0760
NC
3897 h->plt.refcount += 1;
3898 break;
3899
3900 case R_M32R_16_RELA:
3901 case R_M32R_24_RELA:
3902 case R_M32R_32_RELA:
157e7bd1 3903 case R_M32R_REL32:
6edf0760
NC
3904 case R_M32R_HI16_ULO_RELA:
3905 case R_M32R_HI16_SLO_RELA:
3906 case R_M32R_LO16_RELA:
3907 case R_M32R_SDA16_RELA:
8ce757c4 3908 case R_M32R_10_PCREL_RELA:
6edf0760
NC
3909 case R_M32R_18_PCREL_RELA:
3910 case R_M32R_26_PCREL_RELA:
3911
3912 if (h != NULL && !info->shared)
3913 {
f5385ebf 3914 h->non_got_ref = 1;
6edf0760
NC
3915 h->plt.refcount += 1;
3916 }
3917
3918 /* If we are creating a shared library, and this is a reloc
3919 against a global symbol, or a non PC relative reloc
3920 against a local symbol, then we need to copy the reloc
3921 into the shared library. However, if we are linking with
3922 -Bsymbolic, we do not need to copy a reloc against a
3923 global symbol which is defined in an object we are
3924 including in the link (i.e., DEF_REGULAR is set). At
3925 this point we have not seen all the input files, so it is
3926 possible that DEF_REGULAR is not set now but will be set
3927 later (it is never cleared). We account for that
3928 possibility below by storing information in the
3929 dyn_relocs field of the hash table entry. A similar
3930 situation occurs when creating shared libraries and symbol
3931 visibility changes render the symbol local.
3932
3933 If on the other hand, we are creating an executable, we
3934 may need to keep relocations for symbols satisfied by a
3935 dynamic library if we manage to avoid copy relocs for the
3936 symbol. */
3937 if ((info->shared
3938 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3939 && (( r_type != R_M32R_26_PCREL_RELA
157e7bd1 3940 && r_type != R_M32R_18_PCREL_RELA
8ce757c4 3941 && r_type != R_M32R_10_PCREL_RELA
157e7bd1 3942 && r_type != R_M32R_REL32)
6edf0760
NC
3943 || (h != NULL
3944 && (! info->symbolic
3945 || h->root.type == bfd_link_hash_defweak
f5385ebf 3946 || !h->def_regular))))
6edf0760
NC
3947 || (!info->shared
3948 && (sec->flags & SEC_ALLOC) != 0
3949 && h != NULL
3950 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3951 || !h->def_regular)))
6edf0760
NC
3952 {
3953 struct elf_m32r_dyn_relocs *p;
3954 struct elf_m32r_dyn_relocs **head;
3955
3956 if (dynobj == NULL)
3957 htab->root.dynobj = dynobj = abfd;
3958
3959 /* When creating a shared object, we must copy these
3960 relocs into the output file. We create a reloc
3961 section in dynobj and make room for the reloc. */
3962 if (sreloc == NULL)
3963 {
3964 const char *name;
41978308 3965
6edf0760
NC
3966 name = (bfd_elf_string_from_elf_section
3967 (abfd,
3968 elf_elfheader (abfd)->e_shstrndx,
3969 elf_section_data (sec)->rel_hdr.sh_name));
3970 if (name == NULL)
3971 return FALSE;
41978308 3972
6edf0760
NC
3973 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
3974 && strcmp (bfd_get_section_name (abfd, sec),
3975 name + 5) == 0);
41978308 3976
6edf0760
NC
3977 sreloc = bfd_get_section_by_name (dynobj, name);
3978 if (sreloc == NULL)
3979 {
3980 flagword flags;
41978308 3981
6edf0760
NC
3982 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3983 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3984 if ((sec->flags & SEC_ALLOC) != 0)
3985 flags |= SEC_ALLOC | SEC_LOAD;
3496cb2a
L
3986 sreloc = bfd_make_section_with_flags (dynobj,
3987 name,
3988 flags);
6edf0760 3989 if (sreloc == NULL
6edf0760
NC
3990 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
3991 return FALSE;
3992 }
3993 elf_section_data (sec)->sreloc = sreloc;
3994 }
41978308 3995
6edf0760
NC
3996 /* If this is a global symbol, we count the number of
3997 relocations we need for this symbol. */
3998 if (h != NULL)
3999 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
4000 else
4001 {
4002 asection *s;
6edfbbad 4003 void *vpp;
6edf0760
NC
4004
4005 /* Track dynamic relocs needed for local syms too. */
4006 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4007 sec, r_symndx);
4008 if (s == NULL)
4009 return FALSE;
4010
6edfbbad
DJ
4011 vpp = &elf_section_data (s)->local_dynrel;
4012 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC
4013 }
4014
4015 p = *head;
4016 if (p == NULL || p->sec != sec)
4017 {
4018 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC
4019
4020 p = bfd_alloc (dynobj, amt);
6edf0760
NC
4021 if (p == NULL)
4022 return FALSE;
4023 p->next = *head;
4024 *head = p;
4025 p->sec = sec;
4026 p->count = 0;
4027 p->pc_count = 0;
4028 }
4029
4030 p->count += 1;
8ce757c4
NC
4031 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
4032 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
4033 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
4034 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
6edf0760
NC
4035 p->pc_count += 1;
4036 }
4037 break;
4038
252b5132
RH
4039 /* This relocation describes the C++ object vtable hierarchy.
4040 Reconstruct it for later use during GC. */
6edf0760 4041 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 4042 case R_M32R_GNU_VTINHERIT:
c152c796 4043 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4044 return FALSE;
252b5132 4045 break;
c3668558 4046
252b5132
RH
4047 /* This relocation describes which C++ vtable entries are actually
4048 used. Record for later use during GC. */
4049 case R_M32R_GNU_VTENTRY:
c152c796 4050 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 4051 return FALSE;
252b5132 4052 break;
6edf0760 4053 case R_M32R_RELA_GNU_VTENTRY:
c152c796 4054 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC
4055 return FALSE;
4056 break;
252b5132
RH
4057 }
4058 }
c3668558 4059
b34976b6 4060 return TRUE;
252b5132 4061}
2f89ff8d 4062
b35d266b 4063static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 4064{
7dcb9820 4065 { ".sbss", 5, -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
551b43fd
AM
4066 { ".sdata", 6, -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4067 { NULL, 0, 0, 0, 0 }
7f4d3958
L
4068};
4069
6edf0760 4070static bfd_boolean
47b0e7ad
NC
4071m32r_elf_fake_sections (bfd *abfd,
4072 Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED,
4073 asection *sec)
6edf0760 4074{
47b0e7ad 4075 const char *name;
6edf0760
NC
4076
4077 name = bfd_get_section_name (abfd, sec);
4078
4079 /* The generic elf_fake_sections will set up REL_HDR using the
4080 default kind of relocations. But, we may actually need both
4081 kinds of relocations, so we set up the second header here.
4082
4083 This is not necessary for the O32 ABI since that only uses Elf32_Rel
4084 relocations (cf. System V ABI, MIPS RISC Processor Supplement,
4085 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
4086 of the resulting empty .rela.<section> sections starts with
4087 sh_offset == object size, and ld doesn't allow that. While the check
4088 is arguably bogus for empty or SHT_NOBITS sections, it can easily be
4089 avoided by not emitting those useless sections in the first place. */
4090 if ((sec->flags & SEC_RELOC) != 0)
4091 {
4092 struct bfd_elf_section_data *esd;
4093 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
4094
4095 esd = elf_section_data (sec);
4096 BFD_ASSERT (esd->rel_hdr2 == NULL);
47b0e7ad 4097 esd->rel_hdr2 = bfd_zalloc (abfd, amt);
6edf0760
NC
4098 if (!esd->rel_hdr2)
4099 return FALSE;
4100 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
4101 !sec->use_rela_p);
4102 }
4103
4104 return TRUE;
4105}
4106
4107static enum elf_reloc_type_class
47b0e7ad 4108m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
6edf0760
NC
4109{
4110 switch ((int) ELF32_R_TYPE (rela->r_info))
4111 {
47b0e7ad
NC
4112 case R_M32R_RELATIVE: return reloc_class_relative;
4113 case R_M32R_JMP_SLOT: return reloc_class_plt;
4114 case R_M32R_COPY: return reloc_class_copy;
4115 default: return reloc_class_normal;
6edf0760
NC
4116 }
4117}
252b5132 4118\f
252b5132 4119#define ELF_ARCH bfd_arch_m32r
aa4f99bb
AO
4120#define ELF_MACHINE_CODE EM_M32R
4121#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4122#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132
RH
4123
4124#define TARGET_BIG_SYM bfd_elf32_m32r_vec
4125#define TARGET_BIG_NAME "elf32-m32r"
6edf0760
NC
4126#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4127#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4128
6edf0760 4129#define elf_info_to_howto m32r_info_to_howto
252b5132
RH
4130#define elf_info_to_howto_rel m32r_info_to_howto_rel
4131#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4132#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4133#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4134#define elf_backend_relocate_section m32r_elf_relocate_section
4135#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4136#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4137#define elf_backend_check_relocs m32r_elf_check_relocs
4138
6edf0760
NC
4139#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4140#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4141#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4142#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4143#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4144#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4145#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4146#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4147
252b5132 4148#define elf_backend_can_gc_sections 1
6edf0760 4149/*#if !USE_REL
b491616a 4150#define elf_backend_rela_normal 1
6edf0760
NC
4151#endif*/
4152#define elf_backend_can_refcount 1
4153#define elf_backend_want_got_plt 1
4154#define elf_backend_plt_readonly 1
4155#define elf_backend_want_plt_sym 0
4156#define elf_backend_got_header_size 12
4157
4158#define elf_backend_may_use_rel_p 1
4159#ifdef USE_M32R_OLD_RELOC
4160#define elf_backend_default_use_rela_p 0
4161#define elf_backend_may_use_rela_p 0
4162#else
4163#define elf_backend_default_use_rela_p 1
4164#define elf_backend_may_use_rela_p 1
4165#define elf_backend_fake_sections m32r_elf_fake_sections
b491616a 4166#endif
6edf0760 4167
252b5132
RH
4168#define elf_backend_object_p m32r_elf_object_p
4169#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH
4170#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4171#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4172#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4173#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4174
252b5132 4175#include "elf32-target.h"
6edf0760 4176
47b0e7ad 4177#undef ELF_MAXPAGESIZE
6edf0760
NC
4178#define ELF_MAXPAGESIZE 0x1000
4179
47b0e7ad 4180#undef TARGET_BIG_SYM
6edf0760 4181#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
47b0e7ad 4182#undef TARGET_BIG_NAME
6edf0760 4183#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4184#undef TARGET_LITTLE_SYM
6edf0760 4185#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
47b0e7ad 4186#undef TARGET_LITTLE_NAME
6edf0760 4187#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4188#undef elf32_bed
6edf0760
NC
4189#define elf32_bed elf32_m32r_lin_bed
4190
4191#include "elf32-target.h"
4192
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