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252b5132 1/* M32R-specific support for 32-bit ELF.
6f2750fe 2 Copyright (C) 1996-2016 Free Software Foundation, Inc.
252b5132 3
88845958 4 This file is part of BFD, the Binary File Descriptor library.
252b5132 5
88845958
NC
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
88845958 9 (at your option) any later version.
252b5132 10
88845958
NC
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
252b5132 15
88845958
NC
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
252b5132 20
252b5132 21#include "sysdep.h"
3db64b00 22#include "bfd.h"
252b5132
RH
23#include "libbfd.h"
24#include "elf-bfd.h"
25#include "elf/m32r.h"
26
252b5132
RH
27#define NOP_INSN 0x7000
28#define MAKE_PARALLEL(insn) ((insn) | 0x8000)
29
30/* Use REL instead of RELA to save space.
31 This only saves space in libraries and object files, but perhaps
32 relocs will be put in ROM? All in all though, REL relocs are a pain
33 to work with. */
6edf0760 34/* #define USE_REL 1
acf8aed4
AM
35
36#ifndef USE_REL
37#define USE_REL 0
6edf0760 38#endif */
47b0e7ad 39/* Use RELA. But use REL to link old objects for backwords compatibility. */
6edf0760
NC
40
41/* Functions for the M32R ELF linker. */
41978308 42
6edf0760
NC
43/* The name of the dynamic interpreter. This is put in the .interp
44 section. */
41978308 45
6edf0760 46#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
41978308 47
6edf0760 48/* The nop opcode we use. */
41978308 49
6edf0760 50#define M32R_NOP 0x7000f000
41978308 51
6edf0760 52#define PLT_EMPTY 0x10101010 /* RIE -> RIE */
41978308 53
6edf0760
NC
54/* The size in bytes of an entry in the procedure linkage table. */
55
56#define PLT_ENTRY_SIZE 20
57#define PLT_HEADER_SIZE 20
41978308 58
6edf0760
NC
59/* The first one entries in a procedure linkage table are reserved,
60 and the initial contents are unimportant (we zero them out).
61 Subsequent entries look like this. */
41978308 62
6edf0760
NC
63#define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
64#define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
65#define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
66#define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
67#define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 68
6edf0760
NC
69#define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
70#define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
71#define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
72#define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
73#define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 74
6edf0760
NC
75#define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
76#define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
77#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
78#define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
79#define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
80#define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
81#define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
82
252b5132 83
47b0e7ad 84/* Utility to actually perform an R_M32R_10_PCREL reloc. */
252b5132 85
47b0e7ad
NC
86static bfd_reloc_status_type
87m32r_elf_do_10_pcrel_reloc (bfd *abfd,
88 reloc_howto_type *howto,
89 asection *input_section,
90 bfd_byte *data,
91 bfd_vma offset,
92 asection *symbol_section ATTRIBUTE_UNUSED,
93 bfd_vma symbol_value,
94 bfd_vma addend)
95{
96 bfd_signed_vma relocation;
97 unsigned long x;
98 bfd_reloc_status_type status;
252b5132 99
47b0e7ad
NC
100 /* Sanity check the address (offset in section). */
101 if (offset > bfd_get_section_limit (abfd, input_section))
102 return bfd_reloc_outofrange;
252b5132 103
47b0e7ad
NC
104 relocation = symbol_value + addend;
105 /* Make it pc relative. */
106 relocation -= (input_section->output_section->vma
107 + input_section->output_offset);
108 /* These jumps mask off the lower two bits of the current address
109 before doing pcrel calculations. */
110 relocation -= (offset & -(bfd_vma) 4);
252b5132 111
47b0e7ad
NC
112 if (relocation < -0x200 || relocation > 0x1ff)
113 status = bfd_reloc_overflow;
114 else
115 status = bfd_reloc_ok;
252b5132 116
47b0e7ad
NC
117 x = bfd_get_16 (abfd, data + offset);
118 relocation >>= howto->rightshift;
119 relocation <<= howto->bitpos;
120 x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
121 bfd_put_16 (abfd, (bfd_vma) x, data + offset);
252b5132 122
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 476 0, /* rightshift */
6346d5ca
AM
477 3, /* size (0 = byte, 1 = short, 2 = long) */
478 0, /* bitsize */
6edf0760
NC
479 FALSE, /* pc_relative */
480 0, /* bitpos */
6346d5ca 481 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
482 bfd_elf_generic_reloc, /* special_function */
483 "R_M32R_NONE", /* name */
6edf0760 484 FALSE, /* partial_inplace */
47b0e7ad
NC
485 0, /* src_mask */
486 0, /* dst_mask */
6edf0760
NC
487 FALSE), /* pcrel_offset */
488
47b0e7ad
NC
489 /* A 16 bit absolute relocation. */
490 HOWTO (R_M32R_16, /* type */
6edf0760 491 0, /* rightshift */
47b0e7ad
NC
492 1, /* size (0 = byte, 1 = short, 2 = long) */
493 16, /* bitsize */
6edf0760
NC
494 FALSE, /* pc_relative */
495 0, /* bitpos */
496 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC
497 m32r_elf_generic_reloc,/* special_function */
498 "R_M32R_16", /* name */
499 TRUE, /* partial_inplace */
500 0xffff, /* src_mask */
501 0xffff, /* dst_mask */
6edf0760
NC
502 FALSE), /* pcrel_offset */
503
47b0e7ad
NC
504 /* A 32 bit absolute relocation. */
505 HOWTO (R_M32R_32, /* type */
6edf0760
NC
506 0, /* rightshift */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
508 32, /* bitsize */
509 FALSE, /* pc_relative */
510 0, /* bitpos */
511 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC
512 m32r_elf_generic_reloc,/* special_function */
513 "R_M32R_32", /* name */
514 TRUE, /* partial_inplace */
6edf0760
NC
515 0xffffffff, /* src_mask */
516 0xffffffff, /* dst_mask */
517 FALSE), /* pcrel_offset */
518
47b0e7ad
NC
519 /* A 24 bit address. */
520 HOWTO (R_M32R_24, /* type */
6edf0760
NC
521 0, /* rightshift */
522 2, /* size (0 = byte, 1 = short, 2 = long) */
097f809a 523 24, /* bitsize */
6edf0760
NC
524 FALSE, /* pc_relative */
525 0, /* bitpos */
47b0e7ad
NC
526 complain_overflow_unsigned, /* complain_on_overflow */
527 m32r_elf_generic_reloc,/* special_function */
528 "R_M32R_24", /* name */
529 TRUE, /* partial_inplace */
097f809a
NC
530 0xffffff, /* src_mask */
531 0xffffff, /* dst_mask */
6edf0760
NC
532 FALSE), /* pcrel_offset */
533
47b0e7ad
NC
534 /* An PC Relative 10-bit relocation, shifted by 2.
535 This reloc is complicated because relocations are relative to pc & -4.
536 i.e. branches in the right insn slot use the address of the left insn
537 slot for pc. */
538 /* ??? It's not clear whether this should have partial_inplace set or not.
539 Branch relaxing in the assembler can store the addend in the insn,
540 and if bfd_install_relocation gets called the addend may get added
541 again. */
542 HOWTO (R_M32R_10_PCREL, /* type */
543 2, /* rightshift */
544 1, /* size (0 = byte, 1 = short, 2 = long) */
545 10, /* bitsize */
546 TRUE, /* pc_relative */
547 0, /* bitpos */
548 complain_overflow_signed, /* complain_on_overflow */
549 m32r_elf_10_pcrel_reloc, /* special_function */
550 "R_M32R_10_PCREL", /* name */
551 FALSE, /* partial_inplace */
552 0xff, /* src_mask */
553 0xff, /* dst_mask */
6edf0760
NC
554 TRUE), /* pcrel_offset */
555
47b0e7ad
NC
556 /* A relative 18 bit relocation, right shifted by 2. */
557 HOWTO (R_M32R_18_PCREL, /* type */
558 2, /* rightshift */
6edf0760
NC
559 2, /* size (0 = byte, 1 = short, 2 = long) */
560 16, /* bitsize */
47b0e7ad 561 TRUE, /* pc_relative */
6edf0760 562 0, /* bitpos */
47b0e7ad 563 complain_overflow_signed, /* complain_on_overflow */
6edf0760 564 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 565 "R_M32R_18_PCREL", /* name */
6edf0760 566 FALSE, /* partial_inplace */
47b0e7ad
NC
567 0xffff, /* src_mask */
568 0xffff, /* dst_mask */
569 TRUE), /* pcrel_offset */
6edf0760 570
47b0e7ad
NC
571 /* A relative 26 bit relocation, right shifted by 2. */
572 /* ??? It's not clear whether this should have partial_inplace set or not.
573 Branch relaxing in the assembler can store the addend in the insn,
574 and if bfd_install_relocation gets called the addend may get added
575 again. */
576 HOWTO (R_M32R_26_PCREL, /* type */
577 2, /* rightshift */
6edf0760 578 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad
NC
579 26, /* bitsize */
580 TRUE, /* pc_relative */
6edf0760 581 0, /* bitpos */
47b0e7ad 582 complain_overflow_signed, /* complain_on_overflow */
6edf0760 583 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 584 "R_M32R_26_PCREL", /* name */
6edf0760 585 FALSE, /* partial_inplace */
47b0e7ad
NC
586 0xffffff, /* src_mask */
587 0xffffff, /* dst_mask */
588 TRUE), /* pcrel_offset */
6edf0760 589
47b0e7ad
NC
590 /* High 16 bits of address when lower 16 is or'd in. */
591 HOWTO (R_M32R_HI16_ULO, /* type */
592 16, /* rightshift */
6edf0760
NC
593 2, /* size (0 = byte, 1 = short, 2 = long) */
594 16, /* bitsize */
595 FALSE, /* pc_relative */
596 0, /* bitpos */
597 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
598 m32r_elf_hi16_reloc, /* special_function */
599 "R_M32R_HI16_ULO", /* name */
600 TRUE, /* partial_inplace */
6edf0760
NC
601 0x0000ffff, /* src_mask */
602 0x0000ffff, /* dst_mask */
603 FALSE), /* pcrel_offset */
604
47b0e7ad
NC
605 /* High 16 bits of address when lower 16 is added in. */
606 HOWTO (R_M32R_HI16_SLO, /* type */
6edf0760
NC
607 16, /* rightshift */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
609 16, /* bitsize */
610 FALSE, /* pc_relative */
611 0, /* bitpos */
612 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
613 m32r_elf_hi16_reloc, /* special_function */
614 "R_M32R_HI16_SLO", /* name */
615 TRUE, /* partial_inplace */
6edf0760
NC
616 0x0000ffff, /* src_mask */
617 0x0000ffff, /* dst_mask */
47b0e7ad 618 FALSE), /* pcrel_offset */
6edf0760 619
47b0e7ad
NC
620 /* Lower 16 bits of address. */
621 HOWTO (R_M32R_LO16, /* type */
622 0, /* rightshift */
6edf0760
NC
623 2, /* size (0 = byte, 1 = short, 2 = long) */
624 16, /* bitsize */
625 FALSE, /* pc_relative */
626 0, /* bitpos */
627 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
628 m32r_elf_lo16_reloc, /* special_function */
629 "R_M32R_LO16", /* name */
630 TRUE, /* partial_inplace */
6edf0760
NC
631 0x0000ffff, /* src_mask */
632 0x0000ffff, /* dst_mask */
47b0e7ad 633 FALSE), /* pcrel_offset */
6edf0760 634
47b0e7ad
NC
635 /* Small data area 16 bits offset. */
636 HOWTO (R_M32R_SDA16, /* type */
6edf0760
NC
637 0, /* rightshift */
638 2, /* size (0 = byte, 1 = short, 2 = long) */
639 16, /* bitsize */
640 FALSE, /* pc_relative */
641 0, /* bitpos */
47b0e7ad
NC
642 complain_overflow_signed, /* complain_on_overflow */
643 m32r_elf_sda16_reloc, /* special_function */
644 "R_M32R_SDA16", /* name */
645 TRUE, /* partial_inplace */ /* FIXME: correct? */
6edf0760
NC
646 0x0000ffff, /* src_mask */
647 0x0000ffff, /* dst_mask */
47b0e7ad 648 FALSE), /* pcrel_offset */
097f809a 649
47b0e7ad
NC
650 /* GNU extension to record C++ vtable hierarchy. */
651 HOWTO (R_M32R_GNU_VTINHERIT, /* type */
652 0, /* rightshift */
653 2, /* size (0 = byte, 1 = short, 2 = long) */
654 0, /* bitsize */
655 FALSE, /* pc_relative */
656 0, /* bitpos */
657 complain_overflow_dont, /* complain_on_overflow */
658 NULL, /* special_function */
659 "R_M32R_GNU_VTINHERIT", /* name */
660 FALSE, /* partial_inplace */
661 0, /* src_mask */
662 0, /* dst_mask */
663 FALSE), /* pcrel_offset */
664
665 /* GNU extension to record C++ vtable member usage. */
666 HOWTO (R_M32R_GNU_VTENTRY, /* type */
667 0, /* rightshift */
668 2, /* size (0 = byte, 1 = short, 2 = long) */
669 0, /* bitsize */
670 FALSE, /* pc_relative */
671 0, /* bitpos */
672 complain_overflow_dont, /* complain_on_overflow */
673 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
674 "R_M32R_GNU_VTENTRY", /* name */
675 FALSE, /* partial_inplace */
676 0, /* src_mask */
677 0, /* dst_mask */
678 FALSE), /* pcrel_offset */
679
680 EMPTY_HOWTO (13),
681 EMPTY_HOWTO (14),
682 EMPTY_HOWTO (15),
683 EMPTY_HOWTO (16),
684 EMPTY_HOWTO (17),
685 EMPTY_HOWTO (18),
686 EMPTY_HOWTO (19),
687 EMPTY_HOWTO (20),
688 EMPTY_HOWTO (21),
689 EMPTY_HOWTO (22),
690 EMPTY_HOWTO (23),
691 EMPTY_HOWTO (24),
692 EMPTY_HOWTO (25),
693 EMPTY_HOWTO (26),
694 EMPTY_HOWTO (27),
695 EMPTY_HOWTO (28),
696 EMPTY_HOWTO (29),
697 EMPTY_HOWTO (30),
698 EMPTY_HOWTO (31),
699 EMPTY_HOWTO (32),
700
701 /* A 16 bit absolute relocation. */
702 HOWTO (R_M32R_16_RELA, /* type */
703 0, /* rightshift */
704 1, /* size (0 = byte, 1 = short, 2 = long) */
097f809a
NC
705 16, /* bitsize */
706 FALSE, /* pc_relative */
707 0, /* bitpos */
47b0e7ad 708 complain_overflow_bitfield, /* complain_on_overflow */
097f809a 709 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 710 "R_M32R_16_RELA", /* name */
097f809a 711 FALSE, /* partial_inplace */
47b0e7ad
NC
712 0xffff, /* src_mask */
713 0xffff, /* dst_mask */
097f809a
NC
714 FALSE), /* pcrel_offset */
715
47b0e7ad
NC
716 /* A 32 bit absolute relocation. */
717 HOWTO (R_M32R_32_RELA, /* type */
718 0, /* rightshift */
097f809a 719 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 720 32, /* bitsize */
097f809a
NC
721 FALSE, /* pc_relative */
722 0, /* bitpos */
47b0e7ad
NC
723 complain_overflow_bitfield, /* complain_on_overflow */
724 bfd_elf_generic_reloc,/* special_function */
725 "R_M32R_32_RELA", /* name */
097f809a 726 FALSE, /* partial_inplace */
47b0e7ad
NC
727 0xffffffff, /* src_mask */
728 0xffffffff, /* dst_mask */
097f809a
NC
729 FALSE), /* pcrel_offset */
730
47b0e7ad
NC
731 /* A 24 bit address. */
732 HOWTO (R_M32R_24_RELA, /* type */
097f809a
NC
733 0, /* rightshift */
734 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 735 24, /* bitsize */
097f809a
NC
736 FALSE, /* pc_relative */
737 0, /* bitpos */
47b0e7ad
NC
738 complain_overflow_unsigned, /* complain_on_overflow */
739 bfd_elf_generic_reloc,/* special_function */
740 "R_M32R_24_RELA", /* name */
097f809a 741 FALSE, /* partial_inplace */
47b0e7ad
NC
742 0xffffff, /* src_mask */
743 0xffffff, /* dst_mask */
097f809a 744 FALSE), /* pcrel_offset */
252b5132 745
47b0e7ad
NC
746 HOWTO (R_M32R_10_PCREL_RELA, /* type */
747 2, /* rightshift */
748 1, /* size (0 = byte, 1 = short, 2 = long) */
749 10, /* bitsize */
750 TRUE, /* pc_relative */
751 0, /* bitpos */
752 complain_overflow_signed, /* complain_on_overflow */
753 m32r_elf_10_pcrel_reloc, /* special_function */
754 "R_M32R_10_PCREL_RELA",/* name */
755 FALSE, /* partial_inplace */
756 0xff, /* src_mask */
757 0xff, /* dst_mask */
758 TRUE), /* pcrel_offset */
252b5132 759
47b0e7ad
NC
760 /* A relative 18 bit relocation, right shifted by 2. */
761 HOWTO (R_M32R_18_PCREL_RELA, /* type */
762 2, /* rightshift */
763 2, /* size (0 = byte, 1 = short, 2 = long) */
764 16, /* bitsize */
765 TRUE, /* pc_relative */
766 0, /* bitpos */
767 complain_overflow_signed, /* complain_on_overflow */
768 bfd_elf_generic_reloc, /* special_function */
769 "R_M32R_18_PCREL_RELA",/* name */
770 FALSE, /* partial_inplace */
771 0xffff, /* src_mask */
772 0xffff, /* dst_mask */
773 TRUE), /* pcrel_offset */
252b5132 774
47b0e7ad
NC
775 /* A relative 26 bit relocation, right shifted by 2. */
776 HOWTO (R_M32R_26_PCREL_RELA, /* type */
777 2, /* rightshift */
778 2, /* size (0 = byte, 1 = short, 2 = long) */
779 26, /* bitsize */
780 TRUE, /* pc_relative */
781 0, /* bitpos */
782 complain_overflow_signed, /* complain_on_overflow */
783 bfd_elf_generic_reloc, /* special_function */
784 "R_M32R_26_PCREL_RELA",/* name */
785 FALSE, /* partial_inplace */
786 0xffffff, /* src_mask */
787 0xffffff, /* dst_mask */
788 TRUE), /* pcrel_offset */
4c72e23a 789
47b0e7ad
NC
790 /* High 16 bits of address when lower 16 is or'd in. */
791 HOWTO (R_M32R_HI16_ULO_RELA, /* type */
792 16, /* rightshift */
793 2, /* size (0 = byte, 1 = short, 2 = long) */
794 16, /* bitsize */
795 FALSE, /* pc_relative */
796 0, /* bitpos */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_M32R_HI16_ULO_RELA",/* name */
800 FALSE, /* partial_inplace */
801 0x0000ffff, /* src_mask */
802 0x0000ffff, /* dst_mask */
803 FALSE), /* pcrel_offset */
252b5132 804
47b0e7ad
NC
805 /* High 16 bits of address when lower 16 is added in. */
806 HOWTO (R_M32R_HI16_SLO_RELA, /* type */
807 16, /* rightshift */
808 2, /* size (0 = byte, 1 = short, 2 = long) */
809 16, /* bitsize */
810 FALSE, /* pc_relative */
811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
814 "R_M32R_HI16_SLO_RELA",/* name */
815 FALSE, /* partial_inplace */
816 0x0000ffff, /* src_mask */
817 0x0000ffff, /* dst_mask */
818 FALSE), /* pcrel_offset */
252b5132 819
47b0e7ad
NC
820 /* Lower 16 bits of address. */
821 HOWTO (R_M32R_LO16_RELA, /* type */
822 0, /* rightshift */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
824 16, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_dont, /* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_M32R_LO16_RELA", /* name */
830 FALSE, /* partial_inplace */
831 0x0000ffff, /* src_mask */
832 0x0000ffff, /* dst_mask */
833 FALSE), /* pcrel_offset */
252b5132 834
47b0e7ad
NC
835 /* Small data area 16 bits offset. */
836 HOWTO (R_M32R_SDA16_RELA, /* type */
837 0, /* rightshift */
838 2, /* size (0 = byte, 1 = short, 2 = long) */
839 16, /* bitsize */
840 FALSE, /* pc_relative */
841 0, /* bitpos */
842 complain_overflow_signed, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* special_function */
844 "R_M32R_SDA16_RELA", /* name */
845 TRUE, /* partial_inplace */ /* FIXME: correct? */
846 0x0000ffff, /* src_mask */
847 0x0000ffff, /* dst_mask */
848 FALSE), /* pcrel_offset */
252b5132 849
47b0e7ad
NC
850 /* GNU extension to record C++ vtable hierarchy. */
851 HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
852 0, /* rightshift */
853 2, /* size (0 = byte, 1 = short, 2 = long) */
854 0, /* bitsize */
855 FALSE, /* pc_relative */
856 0, /* bitpos */
857 complain_overflow_dont, /* complain_on_overflow */
858 NULL, /* special_function */
859 "R_M32R_RELA_GNU_VTINHERIT", /* name */
860 FALSE, /* partial_inplace */
861 0, /* src_mask */
862 0, /* dst_mask */
863 FALSE), /* pcrel_offset */
252b5132 864
47b0e7ad
NC
865 /* GNU extension to record C++ vtable member usage. */
866 HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
867 0, /* rightshift */
868 2, /* size (0 = byte, 1 = short, 2 = long) */
869 0, /* bitsize */
870 FALSE, /* pc_relative */
871 0, /* bitpos */
872 complain_overflow_dont, /* complain_on_overflow */
873 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
874 "R_M32R_RELA_GNU_VTENTRY", /* name */
875 FALSE, /* partial_inplace */
876 0, /* src_mask */
877 0, /* dst_mask */
878 FALSE), /* pcrel_offset */
252b5132 879
157e7bd1
NC
880 /* A 32 bit PC relative relocation. */
881 HOWTO (R_M32R_REL32, /* type */
882 0, /* rightshift */
883 2, /* size (0 = byte, 1 = short, 2 = long) */
884 32, /* bitsize */
885 TRUE, /* pc_relative */
886 0, /* bitpos */
887 complain_overflow_bitfield, /* complain_on_overflow */
888 bfd_elf_generic_reloc,/* special_function */
889 "R_M32R_REL32", /* name */
890 FALSE, /* partial_inplace */
891 0xffffffff, /* src_mask */
892 0xffffffff, /* dst_mask */
893 TRUE), /* pcrel_offset */
894
47b0e7ad
NC
895 EMPTY_HOWTO (46),
896 EMPTY_HOWTO (47),
252b5132 897
47b0e7ad
NC
898 /* Like R_M32R_24, but referring to the GOT table entry for
899 the symbol. */
900 HOWTO (R_M32R_GOT24, /* type */
901 0, /* rightshift */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
903 24, /* bitsize */
904 FALSE, /* pc_relative */
905 0, /* bitpos */
906 complain_overflow_unsigned, /* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_M32R_GOT24", /* name */
909 FALSE, /* partial_inplace */
910 0xffffff, /* src_mask */
911 0xffffff, /* dst_mask */
912 FALSE), /* pcrel_offset */
8b125cde 913
47b0e7ad
NC
914 /* Like R_M32R_PCREL, but referring to the procedure linkage table
915 entry for the symbol. */
916 HOWTO (R_M32R_26_PLTREL, /* type */
917 2, /* rightshift */
918 2, /* size (0 = byte, 1 = short, 2 = long) */
919 24, /* bitsize */
920 TRUE, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_signed, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_M32R_26_PLTREL", /* name */
925 FALSE, /* partial_inplace */
926 0xffffff, /* src_mask */
927 0xffffff, /* dst_mask */
928 TRUE), /* pcrel_offset */
8b125cde 929
47b0e7ad
NC
930 /* This is used only by the dynamic linker. The symbol should exist
931 both in the object being run and in some shared library. The
932 dynamic linker copies the data addressed by the symbol from the
933 shared library into the object, because the object being
934 run has to have the data at some particular address. */
935 HOWTO (R_M32R_COPY, /* type */
936 0, /* rightshift */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
938 32, /* bitsize */
939 FALSE, /* pc_relative */
940 0, /* bitpos */
941 complain_overflow_bitfield, /* complain_on_overflow */
942 bfd_elf_generic_reloc, /* special_function */
943 "R_M32R_COPY", /* name */
944 FALSE, /* partial_inplace */
945 0xffffffff, /* src_mask */
946 0xffffffff, /* dst_mask */
947 FALSE), /* pcrel_offset */
8b125cde 948
47b0e7ad
NC
949 /* Like R_M32R_24, but used when setting global offset table
950 entries. */
951 HOWTO (R_M32R_GLOB_DAT, /* type */
952 0, /* rightshift */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
954 32, /* bitsize */
955 FALSE, /* pc_relative */
956 0, /* bitpos */
957 complain_overflow_bitfield, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_M32R_GLOB_DAT", /* name */
960 FALSE, /* partial_inplace */
961 0xffffffff, /* src_mask */
962 0xffffffff, /* dst_mask */
963 FALSE), /* pcrel_offset */
8b125cde 964
47b0e7ad
NC
965 /* Marks a procedure linkage table entry for a symbol. */
966 HOWTO (R_M32R_JMP_SLOT, /* type */
967 0, /* rightshift */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
969 32, /* bitsize */
970 FALSE, /* pc_relative */
971 0, /* bitpos */
972 complain_overflow_bitfield, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_M32R_JMP_SLOT", /* name */
975 FALSE, /* partial_inplace */
976 0xffffffff, /* src_mask */
977 0xffffffff, /* dst_mask */
978 FALSE), /* pcrel_offset */
4c72e23a 979
47b0e7ad
NC
980 /* Used only by the dynamic linker. When the object is run, this
981 longword is set to the load address of the object, plus the
982 addend. */
983 HOWTO (R_M32R_RELATIVE, /* type */
984 0, /* rightshift */
985 2, /* size (0 = byte, 1 = short, 2 = long) */
986 32, /* bitsize */
987 FALSE, /* pc_relative */
988 0, /* bitpos */
989 complain_overflow_bitfield, /* complain_on_overflow */
990 bfd_elf_generic_reloc, /* special_function */
991 "R_M32R_RELATIVE", /* name */
992 FALSE, /* partial_inplace */
993 0xffffffff, /* src_mask */
994 0xffffffff, /* dst_mask */
995 FALSE), /* pcrel_offset */
4c72e23a 996
47b0e7ad
NC
997 HOWTO (R_M32R_GOTOFF, /* type */
998 0, /* rightshift */
999 2, /* size (0 = byte, 1 = short, 2 = long) */
1000 24, /* bitsize */
1001 FALSE, /* pc_relative */
1002 0, /* bitpos */
1003 complain_overflow_bitfield, /* complain_on_overflow */
1004 bfd_elf_generic_reloc, /* special_function */
1005 "R_M32R_GOTOFF", /* name */
1006 FALSE, /* partial_inplace */
1007 0xffffff, /* src_mask */
1008 0xffffff, /* dst_mask */
1009 FALSE), /* pcrel_offset */
4c72e23a 1010
47b0e7ad
NC
1011 /* An PC Relative 24-bit relocation used when setting PIC offset
1012 table register. */
1013 HOWTO (R_M32R_GOTPC24, /* type */
1014 0, /* rightshift */
1015 2, /* size (0 = byte, 1 = short, 2 = long) */
1016 24, /* bitsize */
1017 TRUE, /* pc_relative */
1018 0, /* bitpos */
1019 complain_overflow_unsigned, /* complain_on_overflow */
1020 bfd_elf_generic_reloc, /* special_function */
1021 "R_M32R_GOTPC24", /* name */
1022 FALSE, /* partial_inplace */
1023 0xffffff, /* src_mask */
1024 0xffffff, /* dst_mask */
1025 TRUE), /* pcrel_offset */
4c72e23a 1026
47b0e7ad
NC
1027 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1028 the symbol. */
1029 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1030 16, /* rightshift */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1032 16, /* bitsize */
1033 FALSE, /* pc_relative */
1034 0, /* bitpos */
1035 complain_overflow_dont, /* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* special_function */
1037 "R_M32R_GOT16_HI_ULO", /* name */
1038 FALSE, /* partial_inplace */
1039 0x0000ffff, /* src_mask */
1040 0x0000ffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
4c72e23a 1042
47b0e7ad
NC
1043 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1044 the symbol. */
1045 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1046 16, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 FALSE, /* pc_relative */
1050 0, /* bitpos */
1051 complain_overflow_dont, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_M32R_GOT16_HI_SLO", /* name */
1054 FALSE, /* partial_inplace */
1055 0x0000ffff, /* src_mask */
1056 0x0000ffff, /* dst_mask */
1057 FALSE), /* pcrel_offset */
8b125cde 1058
47b0e7ad
NC
1059 /* Like R_M32R_LO16, but referring to the GOT table entry for
1060 the symbol. */
1061 HOWTO (R_M32R_GOT16_LO, /* type */
1062 0, /* rightshift */
1063 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 16, /* bitsize */
1065 FALSE, /* pc_relative */
1066 0, /* bitpos */
1067 complain_overflow_dont, /* complain_on_overflow */
1068 bfd_elf_generic_reloc, /* special_function */
1069 "R_M32R_GOT16_LO", /* name */
1070 FALSE, /* partial_inplace */
1071 0x0000ffff, /* src_mask */
1072 0x0000ffff, /* dst_mask */
1073 FALSE), /* pcrel_offset */
4c72e23a 1074
47b0e7ad
NC
1075 /* An PC Relative relocation used when setting PIC offset table register.
1076 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1077 the symbol. */
1078 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1079 16, /* rightshift */
1080 2, /* size (0 = byte, 1 = short, 2 = long) */
1081 16, /* bitsize */
1082 FALSE, /* pc_relative */
1083 0, /* bitpos */
1084 complain_overflow_dont, /* complain_on_overflow */
1085 bfd_elf_generic_reloc, /* special_function */
1086 "R_M32R_GOTPC_HI_ULO", /* name */
1087 FALSE, /* partial_inplace */
1088 0x0000ffff, /* src_mask */
1089 0x0000ffff, /* dst_mask */
1090 TRUE), /* pcrel_offset */
4c72e23a 1091
47b0e7ad
NC
1092 /* An PC Relative relocation used when setting PIC offset table register.
1093 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1094 the symbol. */
1095 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1096 16, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 bfd_elf_generic_reloc, /* special_function */
1103 "R_M32R_GOTPC_HI_SLO", /* name */
1104 FALSE, /* partial_inplace */
1105 0x0000ffff, /* src_mask */
1106 0x0000ffff, /* dst_mask */
1107 TRUE), /* pcrel_offset */
4c72e23a 1108
47b0e7ad
NC
1109 /* An PC Relative relocation used when setting PIC offset table register.
1110 Like R_M32R_LO16, but referring to the GOT table entry for
1111 the symbol. */
1112 HOWTO (R_M32R_GOTPC_LO, /* type */
1113 0, /* rightshift */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1115 16, /* bitsize */
1116 FALSE, /* pc_relative */
1117 0, /* bitpos */
1118 complain_overflow_dont, /* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_M32R_GOTPC_LO", /* name */
1121 FALSE, /* partial_inplace */
1122 0x0000ffff, /* src_mask */
1123 0x0000ffff, /* dst_mask */
1124 TRUE), /* pcrel_offset */
252b5132 1125
47b0e7ad
NC
1126 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1127 16, /* rightshift */
1128 2, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 bfd_elf_generic_reloc, /* special_function */
1134 "R_M32R_GOTOFF_HI_ULO",/* name */
1135 FALSE, /* partial_inplace */
1136 0x0000ffff, /* src_mask */
1137 0x0000ffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
252b5132 1139
47b0e7ad
NC
1140 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1141 16, /* rightshift */
1142 2, /* size (0 = byte, 1 = short, 2 = long) */
1143 16, /* bitsize */
1144 FALSE, /* pc_relative */
1145 0, /* bitpos */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 bfd_elf_generic_reloc, /* special_function */
1148 "R_M32R_GOTOFF_HI_SLO",/* name */
1149 FALSE, /* partial_inplace */
1150 0x0000ffff, /* src_mask */
1151 0x0000ffff, /* dst_mask */
1152 FALSE), /* pcrel_offset */
252b5132 1153
47b0e7ad
NC
1154 HOWTO (R_M32R_GOTOFF_LO, /* type */
1155 0, /* rightshift */
1156 2, /* size (0 = byte, 1 = short, 2 = long) */
1157 16, /* bitsize */
1158 FALSE, /* pc_relative */
1159 0, /* bitpos */
1160 complain_overflow_dont, /* complain_on_overflow */
1161 bfd_elf_generic_reloc, /* special_function */
1162 "R_M32R_GOTOFF_LO", /* name */
1163 FALSE, /* partial_inplace */
1164 0x0000ffff, /* src_mask */
1165 0x0000ffff, /* dst_mask */
1166 FALSE), /* pcrel_offset */
1167};
252b5132 1168
252b5132
RH
1169/* Map BFD reloc types to M32R ELF reloc types. */
1170
1171struct m32r_reloc_map
1172{
1173 bfd_reloc_code_real_type bfd_reloc_val;
1174 unsigned char elf_reloc_val;
1175};
1176
d5b2f13b 1177#ifdef USE_M32R_OLD_RELOC
6edf0760 1178static const struct m32r_reloc_map m32r_reloc_map_old[] =
252b5132
RH
1179{
1180 { BFD_RELOC_NONE, R_M32R_NONE },
1181 { BFD_RELOC_16, R_M32R_16 },
1182 { BFD_RELOC_32, R_M32R_32 },
1183 { BFD_RELOC_M32R_24, R_M32R_24 },
1184 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1185 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1186 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1187 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1188 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1189 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1190 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1191 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1192 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1193};
d5b2f13b 1194#else
6edf0760
NC
1195static const struct m32r_reloc_map m32r_reloc_map[] =
1196{
1197 { BFD_RELOC_NONE, R_M32R_NONE },
1198 { BFD_RELOC_16, R_M32R_16_RELA },
1199 { BFD_RELOC_32, R_M32R_32_RELA },
1200 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1201 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1202 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1203 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1204 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1205 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1206 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1207 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1208 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1209 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
157e7bd1 1210 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
41978308 1211
6edf0760
NC
1212 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1213 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1214 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1215 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1216 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1217 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1218 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1219 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1220 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1221 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1222 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1223 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1224 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1225 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
097f809a
NC
1226 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1227 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1228 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
6edf0760 1229};
d5b2f13b 1230#endif
6edf0760 1231
252b5132 1232static reloc_howto_type *
47b0e7ad
NC
1233bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1234 bfd_reloc_code_real_type code)
252b5132
RH
1235{
1236 unsigned int i;
1237
6edf0760
NC
1238#ifdef USE_M32R_OLD_RELOC
1239 for (i = 0;
1240 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1241 i++)
47b0e7ad
NC
1242 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1243 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1244
6edf0760
NC
1245#else /* ! USE_M32R_OLD_RELOC */
1246
252b5132
RH
1247 for (i = 0;
1248 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1249 i++)
47b0e7ad
NC
1250 if (m32r_reloc_map[i].bfd_reloc_val == code)
1251 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
6edf0760 1252#endif
252b5132
RH
1253
1254 return NULL;
1255}
1256
157090f7
AM
1257static reloc_howto_type *
1258bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1259 const char *r_name)
1260{
1261 unsigned int i;
1262
1263 for (i = 0;
1264 i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1265 i++)
1266 if (m32r_elf_howto_table[i].name != NULL
1267 && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1268 return &m32r_elf_howto_table[i];
1269
1270 return NULL;
1271}
1272
252b5132
RH
1273/* Set the howto pointer for an M32R ELF reloc. */
1274
1275static void
47b0e7ad
NC
1276m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1277 arelent *cache_ptr,
1278 Elf_Internal_Rela *dst)
252b5132
RH
1279{
1280 unsigned int r_type;
1281
1282 r_type = ELF32_R_TYPE (dst->r_info);
5860e3f8
NC
1283 if (r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1284 {
64d29018 1285 _bfd_error_handler (_("%B: invalid M32R reloc number: %d"), abfd, r_type);
5860e3f8
NC
1286 r_type = 0;
1287 }
252b5132
RH
1288 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1289}
6edf0760
NC
1290
1291static void
47b0e7ad
NC
1292m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1293 arelent *cache_ptr,
1294 Elf_Internal_Rela *dst)
6edf0760
NC
1295{
1296 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1297 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1298 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1299 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1300}
1301
252b5132
RH
1302\f
1303/* Given a BFD section, try to locate the corresponding ELF section
1304 index. */
1305
47b0e7ad
NC
1306static bfd_boolean
1307_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1308 asection *sec,
1309 int *retval)
252b5132
RH
1310{
1311 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1312 {
1313 *retval = SHN_M32R_SCOMMON;
b34976b6 1314 return TRUE;
252b5132 1315 }
b34976b6 1316 return FALSE;
252b5132
RH
1317}
1318
1319/* M32R ELF uses two common sections. One is the usual one, and the other
1320 is for small objects. All the small objects are kept together, and then
1321 referenced via one register, which yields faster assembler code. It is
1322 up to the compiler to emit an instruction to load the register with
1323 _SDA_BASE. This is what we use for the small common section. This
1324 approach is copied from elf32-mips.c. */
1325static asection m32r_elf_scom_section;
1326static asymbol m32r_elf_scom_symbol;
1327static asymbol *m32r_elf_scom_symbol_ptr;
1328
1329/* Handle the special M32R section numbers that a symbol may use. */
1330
47b0e7ad
NC
1331static void
1332_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1333{
47b0e7ad 1334 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH
1335
1336 switch (elfsym->internal_elf_sym.st_shndx)
1337 {
1338 case SHN_M32R_SCOMMON:
1339 if (m32r_elf_scom_section.name == NULL)
1340 {
1341 /* Initialize the small common section. */
1342 m32r_elf_scom_section.name = ".scommon";
1343 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1344 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1345 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1346 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1347 m32r_elf_scom_symbol.name = ".scommon";
1348 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1349 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1350 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1351 }
1352 asym->section = &m32r_elf_scom_section;
1353 asym->value = elfsym->internal_elf_sym.st_size;
1354 break;
1355 }
1356}
1357
1358/* Hook called by the linker routine which adds symbols from an object
1359 file. We must handle the special M32R section numbers here.
1360 We also keep watching for whether we need to create the sdata special
1361 linker sections. */
1362
b34976b6 1363static bfd_boolean
47b0e7ad
NC
1364m32r_elf_add_symbol_hook (bfd *abfd,
1365 struct bfd_link_info *info,
1366 Elf_Internal_Sym *sym,
1367 const char **namep,
1368 flagword *flagsp ATTRIBUTE_UNUSED,
1369 asection **secp,
1370 bfd_vma *valp)
252b5132 1371{
0e1862bb 1372 if (! bfd_link_relocatable (info)
252b5132 1373 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1374 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1375 && is_elf_hash_table (info->hash))
252b5132
RH
1376 {
1377 /* This is simpler than using _bfd_elf_create_linker_section
1378 (our needs are simpler than ppc's needs). Also
1379 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1380 section already exists a new one is created that follows it which
1381 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1382 struct elf_link_hash_entry *h;
14a793b2 1383 struct bfd_link_hash_entry *bh;
252b5132
RH
1384 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1385
6edf0760 1386 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC
1387 if (s == NULL)
1388 {
1389 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1390 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1391
3496cb2a
L
1392 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1393 flags);
6edf0760
NC
1394 if (s == NULL)
1395 return FALSE;
a253d456
NC
1396 if (! bfd_set_section_alignment (abfd, s, 2))
1397 return FALSE;
6edf0760
NC
1398 }
1399
1400 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1401 FALSE, FALSE, FALSE);
1402
1403 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1404 && !(_bfd_generic_link_add_one_symbol (info,
1405 abfd,
1406 "_SDA_BASE_",
1407 BSF_GLOBAL,
1408 s,
1409 (bfd_vma) 32768,
47b0e7ad 1410 NULL,
6edf0760
NC
1411 FALSE,
1412 get_elf_backend_data (abfd)->collect,
1413 &bh)))
1414 return FALSE;
1415 h = (struct elf_link_hash_entry *) bh;
1416 h->type = STT_OBJECT;
1417 }
1418
1419 switch (sym->st_shndx)
1420 {
1421 case SHN_M32R_SCOMMON:
1422 *secp = bfd_make_section_old_way (abfd, ".scommon");
1423 (*secp)->flags |= SEC_IS_COMMON;
1424 *valp = sym->st_size;
1425 break;
1426 }
1427
1428 return TRUE;
1429}
1430
1431/* We have to figure out the SDA_BASE value, so that we can adjust the
1432 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1433 BFD. If we can't find it, we're stuck. We cache it in the ELF
1434 target data. We don't need to adjust the symbol value for an
1435 external symbol if we are producing relocatable output. */
1436
1437static bfd_reloc_status_type
47b0e7ad
NC
1438m32r_elf_final_sda_base (bfd *output_bfd,
1439 struct bfd_link_info *info,
1440 const char **error_message,
1441 bfd_vma *psb)
6edf0760
NC
1442{
1443 if (elf_gp (output_bfd) == 0)
1444 {
1445 struct bfd_link_hash_entry *h;
1446
1447 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1448 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC
1449 elf_gp (output_bfd) = (h->u.def.value
1450 + h->u.def.section->output_section->vma
1451 + h->u.def.section->output_offset);
1452 else
1453 {
1454 /* Only get the error once. */
1455 *psb = elf_gp (output_bfd) = 4;
1456 *error_message =
1457 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1458 return bfd_reloc_dangerous;
1459 }
1460 }
1461 *psb = elf_gp (output_bfd);
1462 return bfd_reloc_ok;
1463}
1464\f
1465/* Return size of a PLT entry. */
1466#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1467
1468/* The m32r linker needs to keep track of the number of relocs that it
1469 decides to copy in check_relocs for each symbol. This is so that
1470 it can discard PC relative relocs if it doesn't need them when
1471 linking with -Bsymbolic. We store the information in a field
1472 extending the regular ELF linker hash table. */
1473
1474/* This structure keeps track of the number of PC relative relocs we
1475 have copied for a given symbol. */
1476
1477struct elf_m32r_pcrel_relocs_copied
1478{
1479 /* Next section. */
1480 struct elf_m32r_pcrel_relocs_copied *next;
1481 /* A section in dynobj. */
1482 asection *section;
1483 /* Number of relocs copied in this section. */
1484 bfd_size_type count;
1485};
1486
1487/* The sh linker needs to keep track of the number of relocs that it
1488 decides to copy as dynamic relocs in check_relocs for each symbol.
1489 This is so that it can later discard them if they are found to be
1490 unnecessary. We store the information in a field extending the
1491 regular ELF linker hash table. */
1492
1493struct elf_m32r_dyn_relocs
1494{
1495 struct elf_m32r_dyn_relocs *next;
1496
1497 /* The input section of the reloc. */
1498 asection *sec;
1499
1500 /* Total number of relocs copied for the input section. */
1501 bfd_size_type count;
1502
1503 /* Number of pc-relative relocs copied for the input section. */
1504 bfd_size_type pc_count;
1505};
1506
1507
1508/* m32r ELF linker hash entry. */
1509
1510struct elf_m32r_link_hash_entry
1511{
1512 struct elf_link_hash_entry root;
1513
1514 /* Track dynamic relocs copied for this symbol. */
1515 struct elf_m32r_dyn_relocs *dyn_relocs;
6edf0760
NC
1516};
1517
1518/* m32r ELF linker hash table. */
1519
1520struct elf_m32r_link_hash_table
1521{
1522 struct elf_link_hash_table root;
1523
1524 /* Short-cuts to get to dynamic linker sections. */
1525 asection *sgot;
1526 asection *sgotplt;
1527 asection *srelgot;
1528 asection *splt;
1529 asection *srelplt;
1530 asection *sdynbss;
1531 asection *srelbss;
1532
87d72d41
AM
1533 /* Small local sym cache. */
1534 struct sym_cache sym_cache;
6edf0760
NC
1535};
1536
1537/* Traverse an m32r ELF linker hash table. */
1538
1539#define m32r_elf_link_hash_traverse(table, func, info) \
1540 (elf_link_hash_traverse \
1541 (&(table)->root, \
47b0e7ad 1542 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC
1543 (info)))
1544
1545/* Get the m32r ELF linker hash table from a link_info structure. */
1546
6edf0760 1547#define m32r_elf_hash_table(p) \
4dfe6ac6
NC
1548 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1549 == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
6edf0760
NC
1550
1551/* Create an entry in an m32r ELF linker hash table. */
6edf0760
NC
1552
1553static struct bfd_hash_entry *
47b0e7ad
NC
1554m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1555 struct bfd_hash_table *table,
1556 const char *string)
6edf0760
NC
1557{
1558 struct elf_m32r_link_hash_entry *ret =
1559 (struct elf_m32r_link_hash_entry *) entry;
41978308 1560
6edf0760
NC
1561 /* Allocate the structure if it has not already been allocated by a
1562 subclass. */
47b0e7ad
NC
1563 if (ret == NULL)
1564 ret = bfd_hash_allocate (table,
1565 sizeof (struct elf_m32r_link_hash_entry));
1566 if (ret == NULL)
1567 return NULL;
41978308 1568
6edf0760
NC
1569 /* Call the allocation method of the superclass. */
1570 ret = ((struct elf_m32r_link_hash_entry *)
1571 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1572 table, string));
47b0e7ad 1573 if (ret != NULL)
6edf0760
NC
1574 {
1575 struct elf_m32r_link_hash_entry *eh;
41978308 1576
6edf0760
NC
1577 eh = (struct elf_m32r_link_hash_entry *) ret;
1578 eh->dyn_relocs = NULL;
6edf0760 1579 }
41978308 1580
6edf0760
NC
1581 return (struct bfd_hash_entry *) ret;
1582}
1583
1584/* Create an m32r ELF linker hash table. */
6edf0760
NC
1585
1586static struct bfd_link_hash_table *
47b0e7ad 1587m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760
NC
1588{
1589 struct elf_m32r_link_hash_table *ret;
1590 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
41978308 1591
7bf52ea2 1592 ret = bfd_zmalloc (amt);
47b0e7ad 1593 if (ret == NULL)
6edf0760 1594 return NULL;
41978308 1595
66eb6687
AM
1596 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1597 m32r_elf_link_hash_newfunc,
4dfe6ac6
NC
1598 sizeof (struct elf_m32r_link_hash_entry),
1599 M32R_ELF_DATA))
6edf0760
NC
1600 {
1601 free (ret);
1602 return NULL;
1603 }
41978308 1604
6edf0760
NC
1605 return &ret->root.root;
1606}
1607
1608/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1609 shortcuts to them in our hash table. */
6edf0760
NC
1610
1611static bfd_boolean
47b0e7ad 1612create_got_section (bfd *dynobj, struct bfd_link_info *info)
6edf0760
NC
1613{
1614 struct elf_m32r_link_hash_table *htab;
1615
1616 if (! _bfd_elf_create_got_section (dynobj, info))
1617 return FALSE;
1618
1619 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
1620 if (htab == NULL)
1621 return FALSE;
1622
3d4d4302
AM
1623 htab->sgot = bfd_get_linker_section (dynobj, ".got");
1624 htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
1625 htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got");
64e77c6d 1626 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
6edf0760
NC
1627 abort ();
1628
6edf0760
NC
1629 return TRUE;
1630}
1631
1632/* Create dynamic sections when linking against a dynamic object. */
1633
1634static bfd_boolean
47b0e7ad 1635m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760
NC
1636{
1637 struct elf_m32r_link_hash_table *htab;
1638 flagword flags, pltflags;
47b0e7ad 1639 asection *s;
6edf0760
NC
1640 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1641 int ptralign = 2; /* 32bit */
1642
1643 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
1644 if (htab == NULL)
1645 return FALSE;
6edf0760
NC
1646
1647 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1648 .rel[a].bss sections. */
6edf0760
NC
1649 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1650 | SEC_LINKER_CREATED);
1651
1652 pltflags = flags;
1653 pltflags |= SEC_CODE;
1654 if (bed->plt_not_loaded)
1655 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1656 if (bed->plt_readonly)
1657 pltflags |= SEC_READONLY;
1658
3d4d4302 1659 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
6edf0760
NC
1660 htab->splt = s;
1661 if (s == NULL
6edf0760
NC
1662 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1663 return FALSE;
1664
1665 if (bed->want_plt_sym)
1666 {
1667 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1668 .plt section. */
41978308
AM
1669 struct bfd_link_hash_entry *bh = NULL;
1670 struct elf_link_hash_entry *h;
47b0e7ad 1671
6edf0760
NC
1672 if (! (_bfd_generic_link_add_one_symbol
1673 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
47b0e7ad 1674 (bfd_vma) 0, NULL, FALSE,
41978308 1675 get_elf_backend_data (abfd)->collect, &bh)))
6edf0760 1676 return FALSE;
41978308 1677 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1678 h->def_regular = 1;
6edf0760 1679 h->type = STT_OBJECT;
7325306f 1680 htab->root.hplt = h;
6edf0760 1681
0e1862bb 1682 if (bfd_link_pic (info)
c152c796 1683 && ! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
1684 return FALSE;
1685 }
1686
3d4d4302
AM
1687 s = bfd_make_section_anyway_with_flags (abfd,
1688 bed->default_use_rela_p
1689 ? ".rela.plt" : ".rel.plt",
1690 flags | SEC_READONLY);
6edf0760
NC
1691 htab->srelplt = s;
1692 if (s == NULL
6edf0760
NC
1693 || ! bfd_set_section_alignment (abfd, s, ptralign))
1694 return FALSE;
1695
1696 if (htab->sgot == NULL
1697 && ! create_got_section (abfd, info))
1698 return FALSE;
1699
6edf0760
NC
1700 if (bed->want_dynbss)
1701 {
1702 /* The .dynbss section is a place to put symbols which are defined
1703 by dynamic objects, are referenced by regular objects, and are
1704 not functions. We must allocate space for them in the process
1705 image and use a R_*_COPY reloc to tell the dynamic linker to
1706 initialize them at run time. The linker script puts the .dynbss
1707 section into the .bss section of the final image. */
3d4d4302
AM
1708 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1709 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1710 htab->sdynbss = s;
3496cb2a 1711 if (s == NULL)
6edf0760
NC
1712 return FALSE;
1713 /* The .rel[a].bss section holds copy relocs. This section is not
1714 normally needed. We need to create it here, though, so that the
1715 linker will map it to an output section. We can't just create it
1716 only if we need it, because we will not know whether we need it
1717 until we have seen all the input files, and the first time the
1718 main linker code calls BFD after examining all the input files
1719 (size_dynamic_sections) the input sections have already been
1720 mapped to the output sections. If the section turns out not to
1721 be needed, we can discard it later. We will never need this
1722 section when generating a shared object, since they do not use
1723 copy relocs. */
0e1862bb 1724 if (! bfd_link_pic (info))
6edf0760 1725 {
3d4d4302
AM
1726 s = bfd_make_section_anyway_with_flags (abfd,
1727 (bed->default_use_rela_p
1728 ? ".rela.bss" : ".rel.bss"),
1729 flags | SEC_READONLY);
6edf0760
NC
1730 htab->srelbss = s;
1731 if (s == NULL
6edf0760
NC
1732 || ! bfd_set_section_alignment (abfd, s, ptralign))
1733 return FALSE;
1734 }
1735 }
1736
1737 return TRUE;
1738}
1739
1740/* Copy the extra info we tack onto an elf_link_hash_entry. */
41978308 1741
6edf0760 1742static void
fcfa13d2 1743m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
6edf0760
NC
1744 struct elf_link_hash_entry *dir,
1745 struct elf_link_hash_entry *ind)
1746{
47b0e7ad
NC
1747 struct elf_m32r_link_hash_entry * edir;
1748 struct elf_m32r_link_hash_entry * eind;
41978308 1749
6edf0760
NC
1750 edir = (struct elf_m32r_link_hash_entry *) dir;
1751 eind = (struct elf_m32r_link_hash_entry *) ind;
41978308 1752
6edf0760
NC
1753 if (eind->dyn_relocs != NULL)
1754 {
1755 if (edir->dyn_relocs != NULL)
1756 {
1757 struct elf_m32r_dyn_relocs **pp;
1758 struct elf_m32r_dyn_relocs *p;
41978308 1759
fcfa13d2 1760 /* Add reloc counts against the indirect sym to the direct sym
6edf0760 1761 list. Merge any entries against the same section. */
47b0e7ad 1762 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
1763 {
1764 struct elf_m32r_dyn_relocs *q;
41978308 1765
6edf0760
NC
1766 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1767 if (q->sec == p->sec)
1768 {
1769 q->pc_count += p->pc_count;
1770 q->count += p->count;
1771 *pp = p->next;
1772 break;
1773 }
1774 if (q == NULL)
1775 pp = &p->next;
1776 }
1777 *pp = edir->dyn_relocs;
1778 }
41978308 1779
6edf0760
NC
1780 edir->dyn_relocs = eind->dyn_relocs;
1781 eind->dyn_relocs = NULL;
1782 }
41978308 1783
fcfa13d2 1784 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
6edf0760
NC
1785}
1786
1787\f
1788/* Adjust a symbol defined by a dynamic object and referenced by a
1789 regular object. The current definition is in some section of the
1790 dynamic object, but we're not including those sections. We have to
1791 change the definition to something the rest of the link can
1792 understand. */
41978308 1793
6edf0760 1794static bfd_boolean
47b0e7ad
NC
1795m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1796 struct elf_link_hash_entry *h)
6edf0760
NC
1797{
1798 struct elf_m32r_link_hash_table *htab;
1799 struct elf_m32r_link_hash_entry *eh;
1800 struct elf_m32r_dyn_relocs *p;
1801 bfd *dynobj;
1802 asection *s;
6edf0760
NC
1803
1804#ifdef DEBUG_PIC
47b0e7ad 1805 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1806#endif
41978308 1807
6edf0760 1808 dynobj = elf_hash_table (info)->dynobj;
41978308 1809
6edf0760
NC
1810 /* Make sure we know what is going on here. */
1811 BFD_ASSERT (dynobj != NULL
f5385ebf 1812 && (h->needs_plt
f6e332e6 1813 || h->u.weakdef != NULL
f5385ebf
AM
1814 || (h->def_dynamic
1815 && h->ref_regular
1816 && !h->def_regular)));
6edf0760 1817
6edf0760
NC
1818 /* If this is a function, put it in the procedure linkage table. We
1819 will fill in the contents of the procedure linkage table later,
1820 when we know the address of the .got section. */
1821 if (h->type == STT_FUNC
f5385ebf 1822 || h->needs_plt)
6edf0760 1823 {
0e1862bb 1824 if (! bfd_link_pic (info)
f5385ebf
AM
1825 && !h->def_dynamic
1826 && !h->ref_dynamic
6edf0760
NC
1827 && h->root.type != bfd_link_hash_undefweak
1828 && h->root.type != bfd_link_hash_undefined)
1829 {
1830 /* This case can occur if we saw a PLT reloc in an input
1831 file, but the symbol was never referred to by a dynamic
1832 object. In such a case, we don't actually need to build
1833 a procedure linkage table, and we can just do a PCREL
1834 reloc instead. */
1835 h->plt.offset = (bfd_vma) -1;
f5385ebf 1836 h->needs_plt = 0;
6edf0760
NC
1837 }
1838
1839 return TRUE;
1840 }
1841 else
1842 h->plt.offset = (bfd_vma) -1;
41978308 1843
6edf0760
NC
1844 /* If this is a weak symbol, and there is a real definition, the
1845 processor independent code will have arranged for us to see the
1846 real definition first, and we can just use the same value. */
f6e332e6 1847 if (h->u.weakdef != NULL)
6edf0760 1848 {
f6e332e6
AM
1849 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1850 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1851 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1852 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6edf0760
NC
1853 return TRUE;
1854 }
41978308 1855
6edf0760
NC
1856 /* This is a reference to a symbol defined by a dynamic object which
1857 is not a function. */
41978308 1858
6edf0760
NC
1859 /* If we are creating a shared library, we must presume that the
1860 only references to the symbol are via the global offset table.
1861 For such cases we need not do anything here; the relocations will
1862 be handled correctly by relocate_section. */
0e1862bb 1863 if (bfd_link_pic (info))
6edf0760 1864 return TRUE;
41978308 1865
6edf0760
NC
1866 /* If there are no references to this symbol that do not use the
1867 GOT, we don't need to generate a copy reloc. */
f5385ebf 1868 if (!h->non_got_ref)
6edf0760
NC
1869 return TRUE;
1870
1871 /* If -z nocopyreloc was given, we won't generate them either. */
1872 if (info->nocopyreloc)
1873 {
f5385ebf 1874 h->non_got_ref = 0;
6edf0760
NC
1875 return TRUE;
1876 }
1877
1878 eh = (struct elf_m32r_link_hash_entry *) h;
1879 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1880 {
1881 s = p->sec->output_section;
1882 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1883 break;
1884 }
1885
1886 /* If we didn't find any dynamic relocs in sections which needs the
1887 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1888 the copy reloc. */
1889 if (p == NULL)
1890 {
f5385ebf 1891 h->non_got_ref = 0;
6edf0760
NC
1892 return TRUE;
1893 }
1894
1895 /* We must allocate the symbol in our .dynbss section, which will
1896 become part of the .bss section of the executable. There will be
1897 an entry for this symbol in the .dynsym section. The dynamic
1898 object will contain position independent code, so all references
1899 from the dynamic object to this symbol will go through the global
1900 offset table. The dynamic linker will use the .dynsym entry to
1901 determine the address it must put in the global offset table, so
1902 both the dynamic object and the regular object will refer to the
1903 same memory location for the variable. */
41978308 1904
6edf0760 1905 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
1906 if (htab == NULL)
1907 return FALSE;
1908
6edf0760
NC
1909 s = htab->sdynbss;
1910 BFD_ASSERT (s != NULL);
41978308 1911
6edf0760
NC
1912 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1913 to copy the initial value out of the dynamic object and into the
1914 runtime process image. We need to remember the offset into the
1915 .rela.bss section we are going to use. */
1d7e9d18 1916 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
6edf0760
NC
1917 {
1918 asection *srel;
41978308 1919
6edf0760
NC
1920 srel = htab->srelbss;
1921 BFD_ASSERT (srel != NULL);
eea6121a 1922 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1923 h->needs_copy = 1;
6edf0760 1924 }
41978308 1925
6cabe1ea 1926 return _bfd_elf_adjust_dynamic_copy (info, h, s);
6edf0760
NC
1927}
1928
6edf0760
NC
1929/* Allocate space in .plt, .got and associated reloc sections for
1930 dynamic relocs. */
41978308 1931
6edf0760 1932static bfd_boolean
47b0e7ad 1933allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC
1934{
1935 struct bfd_link_info *info;
1936 struct elf_m32r_link_hash_table *htab;
1937 struct elf_m32r_link_hash_entry *eh;
1938 struct elf_m32r_dyn_relocs *p;
41978308 1939
6edf0760
NC
1940 if (h->root.type == bfd_link_hash_indirect)
1941 return TRUE;
41978308 1942
6edf0760
NC
1943 info = (struct bfd_link_info *) inf;
1944 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
1945 if (htab == NULL)
1946 return FALSE;
41978308 1947
6edf0760 1948 eh = (struct elf_m32r_link_hash_entry *) h;
41978308 1949
6edf0760
NC
1950 if (htab->root.dynamic_sections_created
1951 && h->plt.refcount > 0)
1952 {
1953 /* Make sure this symbol is output as a dynamic symbol.
1954 Undefined weak syms won't yet be marked as dynamic. */
1955 if (h->dynindx == -1
f5385ebf 1956 && !h->forced_local)
6edf0760 1957 {
c152c796 1958 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
1959 return FALSE;
1960 }
41978308 1961
0e1862bb 1962 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
6edf0760
NC
1963 {
1964 asection *s = htab->splt;
41978308 1965
6edf0760
NC
1966 /* If this is the first .plt entry, make room for the special
1967 first entry. */
eea6121a
AM
1968 if (s->size == 0)
1969 s->size += PLT_ENTRY_SIZE;
41978308 1970
eea6121a 1971 h->plt.offset = s->size;
41978308 1972
6edf0760
NC
1973 /* If this symbol is not defined in a regular file, and we are
1974 not generating a shared library, then set the symbol to this
1975 location in the .plt. This is required to make function
1976 pointers compare as equal between the normal executable and
1977 the shared library. */
0e1862bb 1978 if (! bfd_link_pic (info)
f5385ebf 1979 && !h->def_regular)
6edf0760
NC
1980 {
1981 h->root.u.def.section = s;
1982 h->root.u.def.value = h->plt.offset;
1983 }
41978308 1984
6edf0760 1985 /* Make room for this entry. */
eea6121a 1986 s->size += PLT_ENTRY_SIZE;
41978308 1987
6edf0760
NC
1988 /* We also need to make an entry in the .got.plt section, which
1989 will be placed in the .got section by the linker script. */
eea6121a 1990 htab->sgotplt->size += 4;
41978308 1991
6edf0760 1992 /* We also need to make an entry in the .rel.plt section. */
eea6121a 1993 htab->srelplt->size += sizeof (Elf32_External_Rela);
6edf0760
NC
1994 }
1995 else
1996 {
1997 h->plt.offset = (bfd_vma) -1;
f5385ebf 1998 h->needs_plt = 0;
6edf0760
NC
1999 }
2000 }
2001 else
2002 {
2003 h->plt.offset = (bfd_vma) -1;
f5385ebf 2004 h->needs_plt = 0;
6edf0760 2005 }
41978308 2006
6edf0760
NC
2007 if (h->got.refcount > 0)
2008 {
2009 asection *s;
2010 bfd_boolean dyn;
41978308 2011
6edf0760
NC
2012 /* Make sure this symbol is output as a dynamic symbol.
2013 Undefined weak syms won't yet be marked as dynamic. */
2014 if (h->dynindx == -1
f5385ebf 2015 && !h->forced_local)
6edf0760 2016 {
c152c796 2017 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2018 return FALSE;
2019 }
41978308 2020
6edf0760
NC
2021 s = htab->sgot;
2022
eea6121a
AM
2023 h->got.offset = s->size;
2024 s->size += 4;
6edf0760 2025 dyn = htab->root.dynamic_sections_created;
0e1862bb 2026 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
eea6121a 2027 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2028 }
2029 else
2030 h->got.offset = (bfd_vma) -1;
41978308 2031
6edf0760
NC
2032 if (eh->dyn_relocs == NULL)
2033 return TRUE;
41978308 2034
6edf0760
NC
2035 /* In the shared -Bsymbolic case, discard space allocated for
2036 dynamic pc-relative relocs against symbols which turn out to be
2037 defined in regular objects. For the normal shared case, discard
2038 space for pc-relative relocs that have become local due to symbol
2039 visibility changes. */
2040
0e1862bb 2041 if (bfd_link_pic (info))
6edf0760 2042 {
f5385ebf
AM
2043 if (h->def_regular
2044 && (h->forced_local
6edf0760
NC
2045 || info->symbolic))
2046 {
2047 struct elf_m32r_dyn_relocs **pp;
47b0e7ad
NC
2048
2049 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
2050 {
2051 p->count -= p->pc_count;
2052 p->pc_count = 0;
2053 if (p->count == 0)
2054 *pp = p->next;
2055 else
2056 pp = &p->next;
2057 }
2058 }
22d606e9
AM
2059
2060 /* Also discard relocs on undefined weak syms with non-default
2061 visibility. */
2062 if (eh->dyn_relocs != NULL
2063 && h->root.type == bfd_link_hash_undefweak)
2064 {
2065 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2066 eh->dyn_relocs = NULL;
2067
2068 /* Make sure undefined weak symbols are output as a dynamic
2069 symbol in PIEs. */
2070 else if (h->dynindx == -1
2071 && !h->forced_local)
2072 {
2073 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2074 return FALSE;
2075 }
2076 }
6edf0760
NC
2077 }
2078 else
2079 {
2080 /* For the non-shared case, discard space for relocs against
2081 symbols which turn out to need copy relocs or are not
2082 dynamic. */
41978308 2083
f5385ebf
AM
2084 if (!h->non_got_ref
2085 && ((h->def_dynamic
2086 && !h->def_regular)
6edf0760
NC
2087 || (htab->root.dynamic_sections_created
2088 && (h->root.type == bfd_link_hash_undefweak
2089 || h->root.type == bfd_link_hash_undefined))))
2090 {
2091 /* Make sure this symbol is output as a dynamic symbol.
2092 Undefined weak syms won't yet be marked as dynamic. */
2093 if (h->dynindx == -1
f5385ebf 2094 && !h->forced_local)
6edf0760 2095 {
c152c796 2096 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2097 return FALSE;
2098 }
41978308 2099
6edf0760
NC
2100 /* If that succeeded, we know we'll be keeping all the
2101 relocs. */
2102 if (h->dynindx != -1)
2103 goto keep;
2104 }
41978308 2105
6edf0760 2106 eh->dyn_relocs = NULL;
41978308 2107
6edf0760
NC
2108 keep: ;
2109 }
41978308 2110
6edf0760
NC
2111 /* Finally, allocate space. */
2112 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2113 {
2114 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2115 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 2116 }
41978308 2117
6edf0760
NC
2118 return TRUE;
2119}
47b0e7ad 2120
6edf0760 2121/* Find any dynamic relocs that apply to read-only sections. */
41978308 2122
6edf0760 2123static bfd_boolean
47b0e7ad 2124readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC
2125{
2126 struct elf_m32r_link_hash_entry *eh;
2127 struct elf_m32r_dyn_relocs *p;
2128
6edf0760
NC
2129 eh = (struct elf_m32r_link_hash_entry *) h;
2130 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2131 {
2132 asection *s = p->sec->output_section;
252b5132 2133
6edf0760
NC
2134 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2135 {
2136 struct bfd_link_info *info = (struct bfd_link_info *) inf;
252b5132 2137
6edf0760 2138 info->flags |= DF_TEXTREL;
252b5132 2139
6edf0760
NC
2140 /* Not an error, just cut short the traversal. */
2141 return FALSE;
2142 }
252b5132 2143 }
6edf0760
NC
2144 return TRUE;
2145}
252b5132 2146
6edf0760 2147/* Set the sizes of the dynamic sections. */
41978308 2148
6edf0760 2149static bfd_boolean
47b0e7ad
NC
2150m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2151 struct bfd_link_info *info)
6edf0760
NC
2152{
2153 struct elf_m32r_link_hash_table *htab;
2154 bfd *dynobj;
2155 asection *s;
2156 bfd_boolean relocs;
2157 bfd *ibfd;
2158
2159#ifdef DEBUG_PIC
47b0e7ad 2160 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC
2161#endif
2162
2163 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
2164 if (htab == NULL)
2165 return FALSE;
2166
6edf0760
NC
2167 dynobj = htab->root.dynobj;
2168 BFD_ASSERT (dynobj != NULL);
2169
2170 if (htab->root.dynamic_sections_created)
252b5132 2171 {
6edf0760 2172 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2173 if (bfd_link_executable (info) && !info->nointerp)
6edf0760 2174 {
3d4d4302 2175 s = bfd_get_linker_section (dynobj, ".interp");
6edf0760 2176 BFD_ASSERT (s != NULL);
eea6121a 2177 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC
2178 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2179 }
252b5132
RH
2180 }
2181
6edf0760
NC
2182 /* Set up .got offsets for local syms, and space for local dynamic
2183 relocs. */
c72f2fb2 2184 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
6edf0760
NC
2185 {
2186 bfd_signed_vma *local_got;
2187 bfd_signed_vma *end_local_got;
2188 bfd_size_type locsymcount;
2189 Elf_Internal_Shdr *symtab_hdr;
2190 asection *srel;
252b5132 2191
6edf0760
NC
2192 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2193 continue;
252b5132 2194
6edf0760
NC
2195 for (s = ibfd->sections; s != NULL; s = s->next)
2196 {
2197 struct elf_m32r_dyn_relocs *p;
2198
2199 for (p = ((struct elf_m32r_dyn_relocs *)
2200 elf_section_data (s)->local_dynrel);
2201 p != NULL;
2202 p = p->next)
2203 {
2204 if (! bfd_is_abs_section (p->sec)
2205 && bfd_is_abs_section (p->sec->output_section))
2206 {
2207 /* Input section has been discarded, either because
2208 it is a copy of a linkonce section or due to
2209 linker script /DISCARD/, so we'll be discarding
2210 the relocs too. */
2211 }
2212 else if (p->count != 0)
2213 {
2214 srel = elf_section_data (p->sec)->sreloc;
eea6121a 2215 srel->size += p->count * sizeof (Elf32_External_Rela);
6edf0760
NC
2216 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2217 info->flags |= DF_TEXTREL;
2218 }
2219 }
2220 }
2221
2222 local_got = elf_local_got_refcounts (ibfd);
2223 if (!local_got)
2224 continue;
2225
2226 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2227 locsymcount = symtab_hdr->sh_info;
2228 end_local_got = local_got + locsymcount;
2229 s = htab->sgot;
2230 srel = htab->srelgot;
2231 for (; local_got < end_local_got; ++local_got)
2232 {
2233 if (*local_got > 0)
2234 {
eea6121a
AM
2235 *local_got = s->size;
2236 s->size += 4;
0e1862bb 2237 if (bfd_link_pic (info))
eea6121a 2238 srel->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2239 }
2240 else
2241 *local_got = (bfd_vma) -1;
2242 }
2243 }
2244
2245 /* Allocate global sym .plt and .got entries, and space for global
2246 sym dynamic relocs. */
47b0e7ad 2247 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC
2248
2249 /* We now have determined the sizes of the various dynamic sections.
2250 Allocate memory for them. */
2251 relocs = FALSE;
2252 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2253 {
6edf0760
NC
2254 if ((s->flags & SEC_LINKER_CREATED) == 0)
2255 continue;
252b5132 2256
6edf0760
NC
2257 if (s == htab->splt
2258 || s == htab->sgot
c456f082
AM
2259 || s == htab->sgotplt
2260 || s == htab->sdynbss)
6edf0760
NC
2261 {
2262 /* Strip this section if we don't need it; see the
2263 comment below. */
2264 }
0112cd26 2265 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
6edf0760 2266 {
eea6121a 2267 if (s->size != 0 && s != htab->srelplt)
6edf0760
NC
2268 relocs = TRUE;
2269
2270 /* We use the reloc_count field as a counter if we need
2271 to copy relocs into the output file. */
2272 s->reloc_count = 0;
2273 }
252b5132 2274 else
47b0e7ad
NC
2275 /* It's not one of our sections, so don't allocate space. */
2276 continue;
6edf0760 2277
eea6121a 2278 if (s->size == 0)
6edf0760
NC
2279 {
2280 /* If we don't need this section, strip it from the
2281 output file. This is mostly to handle .rela.bss and
2282 .rela.plt. We must create both sections in
2283 create_dynamic_sections, because they must be created
2284 before the linker maps input sections to output
2285 sections. The linker does that before
2286 adjust_dynamic_symbol is called, and it is that
2287 function which decides whether anything needs to go
2288 into these sections. */
8423293d 2289 s->flags |= SEC_EXCLUDE;
6edf0760
NC
2290 continue;
2291 }
2292
c456f082
AM
2293 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2294 continue;
2295
6edf0760
NC
2296 /* Allocate memory for the section contents. We use bfd_zalloc
2297 here in case unused entries are not reclaimed before the
2298 section's contents are written out. This should not happen,
2299 but this way if it does, we get a R_M32R_NONE reloc instead
2300 of garbage. */
47b0e7ad 2301 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760
NC
2302 if (s->contents == NULL)
2303 return FALSE;
2304 }
2305
2306 if (htab->root.dynamic_sections_created)
2307 {
2308 /* Add some entries to the .dynamic section. We fill in the
2309 values later, in m32r_elf_finish_dynamic_sections, but we
2310 must add the entries now so that we get the correct size for
2311 the .dynamic section. The DT_DEBUG entry is filled in by the
2312 dynamic linker and used by the debugger. */
2313#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2314 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6edf0760 2315
0e1862bb 2316 if (bfd_link_executable (info))
252b5132 2317 {
6edf0760
NC
2318 if (! add_dynamic_entry (DT_DEBUG, 0))
2319 return FALSE;
252b5132 2320 }
6edf0760 2321
eea6121a 2322 if (htab->splt->size != 0)
6edf0760
NC
2323 {
2324 if (! add_dynamic_entry (DT_PLTGOT, 0)
2325 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2326 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2327 || ! add_dynamic_entry (DT_JMPREL, 0))
2328 return FALSE;
2329 }
2330
2331 if (relocs)
2332 {
2333 if (! add_dynamic_entry (DT_RELA, 0)
2334 || ! add_dynamic_entry (DT_RELASZ, 0)
2335 || ! add_dynamic_entry (DT_RELAENT,
2336 sizeof (Elf32_External_Rela)))
2337 return FALSE;
2338
2339 /* If any dynamic relocs apply to a read-only section,
2340 then we need a DT_TEXTREL entry. */
2341 if ((info->flags & DF_TEXTREL) == 0)
2342 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
47b0e7ad 2343 info);
6edf0760
NC
2344
2345 if ((info->flags & DF_TEXTREL) != 0)
2346 {
2347 if (! add_dynamic_entry (DT_TEXTREL, 0))
2348 return FALSE;
2349 }
2350 }
252b5132 2351 }
6edf0760
NC
2352#undef add_dynamic_entry
2353
2354 return TRUE;
252b5132 2355}
47b0e7ad 2356
252b5132
RH
2357/* Relocate an M32R/D ELF section.
2358 There is some attempt to make this function usable for many architectures,
f0fe0e16 2359 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH
2360
2361 The RELOCATE_SECTION function is called by the new ELF backend linker
2362 to handle the relocations for a section.
2363
2364 The relocs are always passed as Rela structures; if the section
2365 actually uses Rel structures, the r_addend field will always be
2366 zero.
2367
2368 This function is responsible for adjust the section contents as
2369 necessary, and (if using Rela relocs and generating a
1049f94e 2370 relocatable output file) adjusting the reloc addend as
252b5132
RH
2371 necessary.
2372
2373 This function does not have to worry about setting the reloc
2374 address or the reloc symbol index.
2375
2376 LOCAL_SYMS is a pointer to the swapped in local symbols.
2377
2378 LOCAL_SECTIONS is an array giving the section in the input file
2379 corresponding to the st_shndx field of each local symbol.
2380
2381 The global hash table entry for the global symbols can be found
2382 via elf_sym_hashes (input_bfd).
2383
1049f94e 2384 When generating relocatable output, this function must handle
252b5132
RH
2385 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2386 going to be the section symbol corresponding to the output
2387 section, which means that the addend must be adjusted
2388 accordingly. */
2389
b34976b6 2390static bfd_boolean
47b0e7ad
NC
2391m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2392 struct bfd_link_info *info,
2393 bfd *input_bfd,
2394 asection *input_section,
2395 bfd_byte *contents,
2396 Elf_Internal_Rela *relocs,
2397 Elf_Internal_Sym *local_syms,
2398 asection **local_sections)
252b5132
RH
2399{
2400 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2401 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2402 Elf_Internal_Rela *rel, *relend;
2403 /* Assume success. */
b34976b6 2404 bfd_boolean ret = TRUE;
6edf0760
NC
2405 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2406 bfd *dynobj;
2407 bfd_vma *local_got_offsets;
2408 asection *sgot, *splt, *sreloc;
07515404 2409 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760 2410
4dfe6ac6
NC
2411 if (htab == NULL)
2412 return FALSE;
2413
6edf0760
NC
2414 dynobj = htab->root.dynobj;
2415 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2416
6edf0760
NC
2417 sgot = htab->sgot;
2418 splt = htab->splt;
2419 sreloc = NULL;
b491616a 2420
252b5132
RH
2421 rel = relocs;
2422 relend = relocs + input_section->reloc_count;
2423 for (; rel < relend; rel++)
2424 {
2425 int r_type;
2426 reloc_howto_type *howto;
2427 unsigned long r_symndx;
6edf0760 2428 struct elf_link_hash_entry *h;
252b5132 2429 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
6edf0760
NC
2430 ensure it's zero (we use REL relocs, not RELA). Therefore this
2431 should be assigning zero to `addend', but for clarity we use
2432 `r_addend'. */
252b5132
RH
2433 bfd_vma addend = rel->r_addend;
2434 bfd_vma offset = rel->r_offset;
ab96bf03 2435 bfd_vma relocation;
252b5132
RH
2436 Elf_Internal_Sym *sym;
2437 asection *sec;
2438 const char *sym_name;
2439 bfd_reloc_status_type r;
2440 const char *errmsg = NULL;
6edf0760 2441 bfd_boolean use_rel = FALSE;
252b5132
RH
2442
2443 h = NULL;
2444 r_type = ELF32_R_TYPE (rel->r_info);
2445 if (r_type < 0 || r_type >= (int) R_M32R_max)
2446 {
4eca0228
AM
2447 _bfd_error_handler (_("%B: unknown relocation type %d"),
2448 input_bfd, (int) r_type);
252b5132 2449 bfd_set_error (bfd_error_bad_value);
b34976b6 2450 ret = FALSE;
252b5132
RH
2451 continue;
2452 }
2453
47b0e7ad 2454 if ( r_type == R_M32R_GNU_VTENTRY
6edf0760
NC
2455 || r_type == R_M32R_GNU_VTINHERIT
2456 || r_type == R_M32R_NONE
2457 || r_type == R_M32R_RELA_GNU_VTENTRY
2458 || r_type == R_M32R_RELA_GNU_VTINHERIT)
252b5132
RH
2459 continue;
2460
6edf0760
NC
2461 if (r_type <= R_M32R_GNU_VTENTRY)
2462 use_rel = TRUE;
2463
252b5132
RH
2464 howto = m32r_elf_howto_table + r_type;
2465 r_symndx = ELF32_R_SYM (rel->r_info);
2466
ab96bf03
AM
2467 sym = NULL;
2468 sec = NULL;
2469 h = NULL;
2470
2471 if (r_symndx < symtab_hdr->sh_info)
2472 {
2473 /* Local symbol. */
2474 sym = local_syms + r_symndx;
2475 sec = local_sections[r_symndx];
2476 sym_name = "<local symbol>";
2477
2478 if (!use_rel)
2479 {
2480 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2481 addend = rel->r_addend;
2482 }
2483 else
2484 {
2485 relocation = (sec->output_section->vma
2486 + sec->output_offset
2487 + sym->st_value);
2488 }
2489 }
2490 else
2491 {
2492 /* External symbol. */
2493 relocation = 0;
2494
2495 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8a5da09b
AM
2496
2497 if (info->wrap_hash != NULL
2498 && (input_section->flags & SEC_DEBUGGING) != 0)
2499 h = ((struct elf_link_hash_entry *)
2500 unwrap_hash_lookup (info, input_bfd, &h->root));
2501
ab96bf03
AM
2502 while (h->root.type == bfd_link_hash_indirect
2503 || h->root.type == bfd_link_hash_warning)
2504 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2505 sym_name = h->root.root.string;
2506
2507 if (h->root.type == bfd_link_hash_defined
2508 || h->root.type == bfd_link_hash_defweak)
2509 {
2510 bfd_boolean dyn;
2511 sec = h->root.u.def.section;
2512
2513 dyn = htab->root.dynamic_sections_created;
2514 sec = h->root.u.def.section;
2515 if (r_type == R_M32R_GOTPC24
2516 || (r_type == R_M32R_GOTPC_HI_ULO
2517 || r_type == R_M32R_GOTPC_HI_SLO
2518 || r_type == R_M32R_GOTPC_LO)
2519 || (r_type == R_M32R_26_PLTREL
2520 && h->plt.offset != (bfd_vma) -1)
2521 || ((r_type == R_M32R_GOT24
2522 || r_type == R_M32R_GOT16_HI_ULO
2523 || r_type == R_M32R_GOT16_HI_SLO
2524 || r_type == R_M32R_GOT16_LO)
2525 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L
2526 bfd_link_pic (info),
2527 h)
2528 && (! bfd_link_pic (info)
ab96bf03
AM
2529 || (! info->symbolic && h->dynindx != -1)
2530 || !h->def_regular))
0e1862bb 2531 || (bfd_link_pic (info)
ab96bf03
AM
2532 && ((! info->symbolic && h->dynindx != -1)
2533 || !h->def_regular)
2534 && (((r_type == R_M32R_16_RELA
2535 || r_type == R_M32R_32_RELA
2536 || r_type == R_M32R_24_RELA
2537 || r_type == R_M32R_HI16_ULO_RELA
2538 || r_type == R_M32R_HI16_SLO_RELA
2539 || r_type == R_M32R_LO16_RELA)
2540 && !h->forced_local)
2541 || r_type == R_M32R_REL32
2542 || r_type == R_M32R_10_PCREL_RELA
2543 || r_type == R_M32R_18_PCREL_RELA
2544 || r_type == R_M32R_26_PCREL_RELA)
2545 && ((input_section->flags & SEC_ALLOC) != 0
2546 /* DWARF will emit R_M32R_16(24,32) relocations
2547 in its sections against symbols defined
2548 externally in shared libraries. We can't do
2549 anything with them here. */
2550 || ((input_section->flags & SEC_DEBUGGING) != 0
2551 && h->def_dynamic))))
2552 {
2553 /* In these cases, we don't need the relocation
2554 value. We check specially because in some
2555 obscure cases sec->output_section will be NULL. */
2556 }
2557 else if (sec->output_section != NULL)
2558 relocation = (h->root.u.def.value
2559 + sec->output_section->vma
2560 + sec->output_offset);
0e1862bb 2561 else if (!bfd_link_relocatable (info)
1d5316ab
AM
2562 && (_bfd_elf_section_offset (output_bfd, info,
2563 input_section,
2564 rel->r_offset)
2565 != (bfd_vma) -1))
ab96bf03 2566 {
4eca0228 2567 _bfd_error_handler
ab96bf03
AM
2568 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2569 input_bfd,
2570 input_section,
2571 (long) rel->r_offset,
2572 howto->name,
2573 h->root.root.string);
2574 }
2575 }
2576 else if (h->root.type == bfd_link_hash_undefweak)
2577 ;
2578 else if (info->unresolved_syms_in_objects == RM_IGNORE
2579 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2580 ;
0e1862bb 2581 else if (!bfd_link_relocatable (info))
1a72702b
AM
2582 (*info->callbacks->undefined_symbol)
2583 (info, h->root.root.string, input_bfd,
2584 input_section, offset,
2585 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2586 || ELF_ST_VISIBILITY (h->other)));
ab96bf03
AM
2587 }
2588
dbaa2011 2589 if (sec != NULL && discarded_section (sec))
e4067dbb 2590 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2591 rel, 1, relend, howto, 0, contents);
ab96bf03 2592
0e1862bb 2593 if (bfd_link_relocatable (info) && !use_rel)
252b5132 2594 {
1049f94e 2595 /* This is a relocatable link. We don't have to change
252b5132
RH
2596 anything, unless the reloc is against a section symbol,
2597 in which case we have to adjust according to where the
2598 section symbol winds up in the output section. */
ab96bf03
AM
2599 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2600 rel->r_addend += sec->output_offset;
2601 continue;
2602 }
252b5132 2603
0e1862bb 2604 if (bfd_link_relocatable (info) && use_rel)
ab96bf03
AM
2605 {
2606 /* This is a relocatable link. We don't have to change
2607 anything, unless the reloc is against a section symbol,
2608 in which case we have to adjust according to where the
2609 section symbol winds up in the output section. */
2610 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2611 continue;
252b5132 2612
ab96bf03 2613 addend += sec->output_offset;
252b5132 2614
252b5132
RH
2615 /* If partial_inplace, we need to store any additional addend
2616 back in the section. */
2617 if (! howto->partial_inplace)
2618 continue;
2619 /* ??? Here is a nice place to call a special_function
2620 like handler. */
2621 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2622 r = _bfd_relocate_contents (howto, input_bfd,
2623 addend, contents + offset);
2624 else
2625 {
2626 Elf_Internal_Rela *lorel;
2627
2628 /* We allow an arbitrary number of HI16 relocs before the
2629 LO16 reloc. This permits gcc to emit the HI and LO relocs
2630 itself. */
2631 for (lorel = rel + 1;
2632 (lorel < relend
2633 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2634 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2635 lorel++)
2636 continue;
2637 if (lorel < relend
2638 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2639 {
2640 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2641 contents, addend);
2642 r = bfd_reloc_ok;
2643 }
2644 else
2645 r = _bfd_relocate_contents (howto, input_bfd,
2646 addend, contents + offset);
2647 }
252b5132
RH
2648 }
2649 else
2650 {
252b5132 2651 /* Sanity check the address. */
07515404 2652 if (offset > high_address)
252b5132
RH
2653 {
2654 r = bfd_reloc_outofrange;
2655 goto check_reloc;
2656 }
2657
2658 switch ((int) r_type)
2659 {
097f809a
NC
2660 case R_M32R_GOTOFF:
2661 /* Relocation is relative to the start of the global offset
2662 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2663
097f809a
NC
2664 ld24 rx. #label@GOTOFF + addend
2665 sub rx, r12. */
2666
2667 BFD_ASSERT (sgot != NULL);
2668
2669 relocation = -(relocation - sgot->output_section->vma);
2670 rel->r_addend = -rel->r_addend;
2671 break;
2672
2673 case R_M32R_GOTOFF_HI_ULO:
2674 case R_M32R_GOTOFF_HI_SLO:
2675 case R_M32R_GOTOFF_LO:
2676 BFD_ASSERT (sgot != NULL);
2677
2678 relocation -= sgot->output_section->vma;
2679
2680 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2681 && ((relocation + rel->r_addend) & 0x8000))
2682 rel->r_addend += 0x10000;
2683 break;
2684
6edf0760
NC
2685 case R_M32R_GOTPC24:
2686 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2687 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2688 */
2689 relocation = sgot->output_section->vma;
2690 break;
2691
2692 case R_M32R_GOTPC_HI_ULO:
2693 case R_M32R_GOTPC_HI_SLO:
41978308 2694 case R_M32R_GOTPC_LO:
6edf0760
NC
2695 {
2696 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2697 bl .+4
2698 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2699 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2700 or
2701 bl .+4
2702 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2703 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2704 */
2705 relocation = sgot->output_section->vma;
2706 relocation -= (input_section->output_section->vma
2707 + input_section->output_offset
2708 + rel->r_offset);
41978308 2709 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC
2710 && ((relocation + rel->r_addend) & 0x8000))
2711 rel->r_addend += 0x10000;
2712
2713 break;
2714 }
2715 case R_M32R_GOT16_HI_ULO:
2716 case R_M32R_GOT16_HI_SLO:
41978308 2717 case R_M32R_GOT16_LO:
6edf0760
NC
2718 /* Fall through. */
2719 case R_M32R_GOT24:
2720 /* Relocation is to the entry for this symbol in the global
2721 offset table. */
2722 BFD_ASSERT (sgot != NULL);
41978308 2723
6edf0760
NC
2724 if (h != NULL)
2725 {
2726 bfd_boolean dyn;
2727 bfd_vma off;
41978308 2728
6edf0760
NC
2729 off = h->got.offset;
2730 BFD_ASSERT (off != (bfd_vma) -1);
2731
2732 dyn = htab->root.dynamic_sections_created;
0e1862bb
L
2733 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2734 bfd_link_pic (info),
2735 h)
2736 || (bfd_link_pic (info)
6edf0760
NC
2737 && (info->symbolic
2738 || h->dynindx == -1
f5385ebf
AM
2739 || h->forced_local)
2740 && h->def_regular))
6edf0760
NC
2741 {
2742 /* This is actually a static link, or it is a
2743 -Bsymbolic link and the symbol is defined
2744 locally, or the symbol was forced to be local
2745 because of a version file. We must initialize
2746 this entry in the global offset table. Since the
2747 offset must always be a multiple of 4, we use the
2748 least significant bit to record whether we have
2749 initialized it already.
41978308 2750
6edf0760
NC
2751 When doing a dynamic link, we create a .rela.got
2752 relocation entry to initialize the value. This
2753 is done in the finish_dynamic_symbol routine. */
2754 if ((off & 1) != 0)
2755 off &= ~1;
2756 else
2757 {
2758 bfd_put_32 (output_bfd, relocation,
2759 sgot->contents + off);
2760 h->got.offset |= 1;
2761 }
2762 }
41978308 2763
6edf0760
NC
2764 relocation = sgot->output_offset + off;
2765 }
2766 else
2767 {
2768 bfd_vma off;
2769 bfd_byte *loc;
41978308 2770
6edf0760
NC
2771 BFD_ASSERT (local_got_offsets != NULL
2772 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2773
6edf0760 2774 off = local_got_offsets[r_symndx];
41978308 2775
6edf0760
NC
2776 /* The offset must always be a multiple of 4. We use
2777 the least significant bit to record whether we have
2778 already processed this entry. */
2779 if ((off & 1) != 0)
2780 off &= ~1;
2781 else
2782 {
2783 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2784
0e1862bb 2785 if (bfd_link_pic (info))
6edf0760
NC
2786 {
2787 asection *srelgot;
2788 Elf_Internal_Rela outrel;
41978308 2789
6edf0760
NC
2790 /* We need to generate a R_M32R_RELATIVE reloc
2791 for the dynamic linker. */
3d4d4302
AM
2792 srelgot = bfd_get_linker_section (dynobj,
2793 ".rela.got");
6edf0760 2794 BFD_ASSERT (srelgot != NULL);
41978308 2795
6edf0760
NC
2796 outrel.r_offset = (sgot->output_section->vma
2797 + sgot->output_offset
2798 + off);
2799 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2800 outrel.r_addend = relocation;
2801 loc = srelgot->contents;
47b0e7ad 2802 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2803 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2804 ++srelgot->reloc_count;
2805 }
41978308 2806
6edf0760
NC
2807 local_got_offsets[r_symndx] |= 1;
2808 }
41978308 2809
6edf0760
NC
2810 relocation = sgot->output_offset + off;
2811 }
2812 if ((r_type == R_M32R_GOT16_HI_SLO)
2813 && ((relocation + rel->r_addend) & 0x8000))
2814 rel->r_addend += 0x10000;
2815
2816 break;
41978308 2817
6edf0760
NC
2818 case R_M32R_26_PLTREL:
2819 /* Relocation is to the entry for this symbol in the
2820 procedure linkage table. */
41978308 2821
6edf0760
NC
2822 /* The native assembler will generate a 26_PLTREL reloc
2823 for a local symbol if you assemble a call from one
2824 section to another when using -K pic. */
2825 if (h == NULL)
2826 break;
2827
f5385ebf 2828 if (h->forced_local)
6edf0760
NC
2829 break;
2830
2831 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC
2832 /* We didn't make a PLT entry for this symbol. This
2833 happens when statically linking PIC code, or when
2834 using -Bsymbolic. */
2835 break;
41978308 2836
6edf0760
NC
2837 relocation = (splt->output_section->vma
2838 + splt->output_offset
2839 + h->plt.offset);
2840 break;
41978308 2841
6edf0760 2842 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC
2843 if ((relocation + rel->r_addend) & 0x8000)
2844 rel->r_addend += 0x10000;
6edf0760 2845 /* Fall through. */
47b0e7ad 2846
6edf0760
NC
2847 case R_M32R_16_RELA:
2848 case R_M32R_24_RELA:
2849 case R_M32R_32_RELA:
157e7bd1 2850 case R_M32R_REL32:
8ce757c4 2851 case R_M32R_10_PCREL_RELA:
6edf0760
NC
2852 case R_M32R_18_PCREL_RELA:
2853 case R_M32R_26_PCREL_RELA:
2854 case R_M32R_HI16_ULO_RELA:
2855 case R_M32R_LO16_RELA:
0e1862bb 2856 if (bfd_link_pic (info)
cf35638d 2857 && r_symndx != STN_UNDEF
6edf0760 2858 && (input_section->flags & SEC_ALLOC) != 0
8ce757c4
NC
2859 && (( r_type != R_M32R_10_PCREL_RELA
2860 && r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC
2861 && r_type != R_M32R_26_PCREL_RELA
2862 && r_type != R_M32R_REL32)
6edf0760
NC
2863 || (h != NULL
2864 && h->dynindx != -1
2865 && (! info->symbolic
f5385ebf 2866 || !h->def_regular))))
6edf0760
NC
2867 {
2868 Elf_Internal_Rela outrel;
2869 bfd_boolean skip, relocate;
2870 bfd_byte *loc;
41978308 2871
6edf0760
NC
2872 /* When generating a shared object, these relocations
2873 are copied into the output file to be resolved at run
2874 time. */
6edf0760
NC
2875 if (sreloc == NULL)
2876 {
83bac4b0
NC
2877 sreloc = _bfd_elf_get_dynamic_reloc_section
2878 (input_bfd, input_section, /*rela?*/ TRUE);
2879 if (sreloc == NULL)
2880 return FALSE;
6edf0760 2881 }
41978308 2882
6edf0760
NC
2883 skip = FALSE;
2884 relocate = FALSE;
41978308 2885
6edf0760
NC
2886 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2887 info,
2888 input_section,
2889 rel->r_offset);
2890 if (outrel.r_offset == (bfd_vma) -1)
2891 skip = TRUE;
2892 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2893 skip = relocate = TRUE;
6edf0760
NC
2894 outrel.r_offset += (input_section->output_section->vma
2895 + input_section->output_offset);
41978308 2896
6edf0760
NC
2897 if (skip)
2898 memset (&outrel, 0, sizeof outrel);
8ce757c4
NC
2899 else if ( r_type == R_M32R_10_PCREL_RELA
2900 || r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC
2901 || r_type == R_M32R_26_PCREL_RELA
2902 || r_type == R_M32R_REL32)
6edf0760
NC
2903 {
2904 BFD_ASSERT (h != NULL && h->dynindx != -1);
2905 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2906 outrel.r_addend = rel->r_addend;
2907 }
2908 else
2909 {
2910 /* h->dynindx may be -1 if this symbol was marked to
2911 become local. */
2912 if (h == NULL
2913 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2914 && h->def_regular))
6edf0760
NC
2915 {
2916 relocate = TRUE;
2917 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2918 outrel.r_addend = relocation + rel->r_addend;
2919 }
2920 else
2921 {
2922 BFD_ASSERT (h->dynindx != -1);
2923 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2924 outrel.r_addend = relocation + rel->r_addend;
2925 }
2926 }
2927
2928 loc = sreloc->contents;
47b0e7ad 2929 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2930 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2931 ++sreloc->reloc_count;
2932
2933 /* If this reloc is against an external symbol, we do
2934 not want to fiddle with the addend. Otherwise, we
2935 need to include the symbol value so that it becomes
2936 an addend for the dynamic reloc. */
2937 if (! relocate)
2938 continue;
8ce757c4 2939 break;
6edf0760 2940 }
8ce757c4
NC
2941 else if (r_type != R_M32R_10_PCREL_RELA)
2942 break;
2943 /* Fall through. */
41978308 2944
252b5132
RH
2945 case (int) R_M32R_10_PCREL :
2946 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2947 contents, offset,
2948 sec, relocation, addend);
6edf0760 2949 goto check_reloc;
252b5132
RH
2950
2951 case (int) R_M32R_HI16_SLO :
2952 case (int) R_M32R_HI16_ULO :
2953 {
2954 Elf_Internal_Rela *lorel;
2955
2956 /* We allow an arbitrary number of HI16 relocs before the
2957 LO16 reloc. This permits gcc to emit the HI and LO relocs
2958 itself. */
2959 for (lorel = rel + 1;
2960 (lorel < relend
2961 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2962 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2963 lorel++)
2964 continue;
2965 if (lorel < relend
2966 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2967 {
2968 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2969 contents, relocation + addend);
2970 r = bfd_reloc_ok;
2971 }
2972 else
2973 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2974 contents, offset,
2975 relocation, addend);
2976 }
6edf0760
NC
2977
2978 goto check_reloc;
252b5132 2979
af705ba8 2980 case (int) R_M32R_SDA16_RELA:
252b5132
RH
2981 case (int) R_M32R_SDA16 :
2982 {
2983 const char *name;
2984
2985 BFD_ASSERT (sec != NULL);
a0f49396 2986 name = bfd_get_section_name (sec->owner, sec);
252b5132 2987
47b0e7ad 2988 if ( strcmp (name, ".sdata") == 0
252b5132
RH
2989 || strcmp (name, ".sbss") == 0
2990 || strcmp (name, ".scommon") == 0)
2991 {
2992 bfd_vma sda_base;
2993 bfd *out_bfd = sec->output_section->owner;
2994
2995 r = m32r_elf_final_sda_base (out_bfd, info,
2996 &errmsg,
2997 &sda_base);
2998 if (r != bfd_reloc_ok)
2999 {
b34976b6 3000 ret = FALSE;
252b5132
RH
3001 goto check_reloc;
3002 }
3003
3004 /* At this point `relocation' contains the object's
3005 address. */
3006 relocation -= sda_base;
3007 /* Now it contains the offset from _SDA_BASE_. */
3008 }
3009 else
3010 {
4eca0228 3011 _bfd_error_handler
d003868e
AM
3012 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3013 input_bfd,
3014 sec,
8f615d07 3015 sym_name,
d003868e 3016 m32r_elf_howto_table[(int) r_type].name);
252b5132 3017 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3018 ret = FALSE;
252b5132
RH
3019 continue;
3020 }
3021 }
47b0e7ad 3022 /* Fall through. */
6edf0760
NC
3023
3024 default : /* OLD_M32R_RELOC */
252b5132 3025
252b5132
RH
3026 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3027 contents, offset,
3028 relocation, addend);
6edf0760 3029 goto check_reloc;
252b5132 3030 }
6edf0760
NC
3031
3032 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3033 contents, rel->r_offset,
3034 relocation, rel->r_addend);
3035
252b5132
RH
3036 }
3037
3038 check_reloc:
3039
3040 if (r != bfd_reloc_ok)
3041 {
3042 /* FIXME: This should be generic enough to go in a utility. */
3043 const char *name;
3044
3045 if (h != NULL)
3046 name = h->root.root.string;
3047 else
3048 {
3049 name = (bfd_elf_string_from_elf_section
3050 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3051 if (name == NULL || *name == '\0')
3052 name = bfd_section_name (input_bfd, sec);
3053 }
3054
3055 if (errmsg != NULL)
3056 goto common_error;
3057
3058 switch (r)
3059 {
3060 case bfd_reloc_overflow:
1a72702b
AM
3061 (*info->callbacks->reloc_overflow)
3062 (info, (h ? &h->root : NULL), name, howto->name,
3063 (bfd_vma) 0, input_bfd, input_section, offset);
252b5132
RH
3064 break;
3065
3066 case bfd_reloc_undefined:
1a72702b
AM
3067 (*info->callbacks->undefined_symbol)
3068 (info, name, input_bfd, input_section, offset, TRUE);
252b5132
RH
3069 break;
3070
3071 case bfd_reloc_outofrange:
3072 errmsg = _("internal error: out of range error");
3073 goto common_error;
3074
3075 case bfd_reloc_notsupported:
3076 errmsg = _("internal error: unsupported relocation error");
3077 goto common_error;
3078
3079 case bfd_reloc_dangerous:
3080 errmsg = _("internal error: dangerous error");
3081 goto common_error;
3082
3083 default:
3084 errmsg = _("internal error: unknown error");
3085 /* fall through */
3086
3087 common_error:
1a72702b
AM
3088 (*info->callbacks->warning) (info, errmsg, name, input_bfd,
3089 input_section, offset);
252b5132
RH
3090 break;
3091 }
3092 }
3093 }
3094
3095 return ret;
3096}
6edf0760
NC
3097
3098/* Finish up dynamic symbol handling. We set the contents of various
3099 dynamic sections here. */
47b0e7ad 3100
6edf0760 3101static bfd_boolean
47b0e7ad
NC
3102m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3103 struct bfd_link_info *info,
3104 struct elf_link_hash_entry *h,
3105 Elf_Internal_Sym *sym)
6edf0760
NC
3106{
3107 struct elf_m32r_link_hash_table *htab;
6edf0760 3108 bfd_byte *loc;
41978308 3109
6edf0760 3110#ifdef DEBUG_PIC
47b0e7ad 3111 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3112#endif
41978308 3113
6edf0760 3114 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
3115 if (htab == NULL)
3116 return FALSE;
3117
6edf0760
NC
3118 if (h->plt.offset != (bfd_vma) -1)
3119 {
3120 asection *splt;
3121 asection *sgot;
3122 asection *srela;
3123
3124 bfd_vma plt_index;
3125 bfd_vma got_offset;
3126 Elf_Internal_Rela rela;
41978308 3127
6edf0760
NC
3128 /* This symbol has an entry in the procedure linkage table. Set
3129 it up. */
41978308 3130
6edf0760 3131 BFD_ASSERT (h->dynindx != -1);
41978308 3132
6edf0760
NC
3133 splt = htab->splt;
3134 sgot = htab->sgotplt;
3135 srela = htab->srelplt;
3136 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3137
3138 /* Get the index in the procedure linkage table which
3139 corresponds to this symbol. This is the index of this symbol
3140 in all the symbols for which we are making plt entries. The
3141 first entry in the procedure linkage table is reserved. */
3142 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3143
3144 /* Get the offset into the .got table of the entry that
3145 corresponds to this function. Each .got entry is 4 bytes.
3146 The first three are reserved. */
3147 got_offset = (plt_index + 3) * 4;
3148
3149 /* Fill in the entry in the procedure linkage table. */
0e1862bb 3150 if (! bfd_link_pic (info))
6edf0760
NC
3151 {
3152 bfd_put_32 (output_bfd,
3153 (PLT_ENTRY_WORD0b
3154 + (((sgot->output_section->vma
3155 + sgot->output_offset
3156 + got_offset) >> 16) & 0xffff)),
3157 splt->contents + h->plt.offset);
3158 bfd_put_32 (output_bfd,
3159 (PLT_ENTRY_WORD1b
3160 + ((sgot->output_section->vma
3161 + sgot->output_offset
3162 + got_offset) & 0xffff)),
3163 splt->contents + h->plt.offset + 4);
3164 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3165 splt->contents + h->plt.offset + 8);
3166 bfd_put_32 (output_bfd,
3167 (PLT_ENTRY_WORD3
3168 + plt_index * sizeof (Elf32_External_Rela)),
3169 splt->contents + h->plt.offset + 12);
3170 bfd_put_32 (output_bfd,
3171 (PLT_ENTRY_WORD4
3172 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3173 splt->contents + h->plt.offset + 16);
3174 }
3175 else
3176 {
3177 bfd_put_32 (output_bfd,
3178 PLT_ENTRY_WORD0 + got_offset,
3179 splt->contents + h->plt.offset);
3180 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3181 splt->contents + h->plt.offset + 4);
3182 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3183 splt->contents + h->plt.offset + 8);
3184 bfd_put_32 (output_bfd,
3185 (PLT_ENTRY_WORD3
3186 + plt_index * sizeof (Elf32_External_Rela)),
3187 splt->contents + h->plt.offset + 12);
3188 bfd_put_32 (output_bfd,
3189 (PLT_ENTRY_WORD4
3190 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3191 splt->contents + h->plt.offset + 16);
3192 }
41978308 3193
6edf0760
NC
3194 /* Fill in the entry in the global offset table. */
3195 bfd_put_32 (output_bfd,
3196 (splt->output_section->vma
3197 + splt->output_offset
3198 + h->plt.offset
3199 + 12), /* same offset */
3200 sgot->contents + got_offset);
3201
3202 /* Fill in the entry in the .rela.plt section. */
3203 rela.r_offset = (sgot->output_section->vma
3204 + sgot->output_offset
3205 + got_offset);
3206 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3207 rela.r_addend = 0;
3208 loc = srela->contents;
47b0e7ad 3209 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3210 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3211
f5385ebf 3212 if (!h->def_regular)
6edf0760
NC
3213 {
3214 /* Mark the symbol as undefined, rather than as defined in
3215 the .plt section. Leave the value alone. */
3216 sym->st_shndx = SHN_UNDEF;
3217 }
3218 }
3219
3220 if (h->got.offset != (bfd_vma) -1)
3221 {
3222 asection *sgot;
3223 asection *srela;
3224 Elf_Internal_Rela rela;
41978308 3225
6edf0760
NC
3226 /* This symbol has an entry in the global offset table. Set it
3227 up. */
41978308 3228
6edf0760
NC
3229 sgot = htab->sgot;
3230 srela = htab->srelgot;
3231 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3232
6edf0760
NC
3233 rela.r_offset = (sgot->output_section->vma
3234 + sgot->output_offset
3235 + (h->got.offset &~ 1));
41978308 3236
6edf0760
NC
3237 /* If this is a -Bsymbolic link, and the symbol is defined
3238 locally, we just want to emit a RELATIVE reloc. Likewise if
3239 the symbol was forced to be local because of a version file.
3240 The entry in the global offset table will already have been
3241 initialized in the relocate_section function. */
0e1862bb 3242 if (bfd_link_pic (info)
6edf0760
NC
3243 && (info->symbolic
3244 || h->dynindx == -1
f5385ebf
AM
3245 || h->forced_local)
3246 && h->def_regular)
6edf0760
NC
3247 {
3248 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3249 rela.r_addend = (h->root.u.def.value
3250 + h->root.u.def.section->output_section->vma
3251 + h->root.u.def.section->output_offset);
3252 }
3253 else
3254 {
47b0e7ad 3255 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC
3256 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3257 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3258 rela.r_addend = 0;
3259 }
41978308 3260
6edf0760 3261 loc = srela->contents;
47b0e7ad 3262 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3263 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3264 ++srela->reloc_count;
3265 }
41978308 3266
f5385ebf 3267 if (h->needs_copy)
6edf0760
NC
3268 {
3269 asection *s;
3270 Elf_Internal_Rela rela;
41978308 3271
6edf0760 3272 /* This symbols needs a copy reloc. Set it up. */
41978308 3273
6edf0760
NC
3274 BFD_ASSERT (h->dynindx != -1
3275 && (h->root.type == bfd_link_hash_defined
3276 || h->root.type == bfd_link_hash_defweak));
41978308 3277
3d4d4302 3278 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
6edf0760 3279 BFD_ASSERT (s != NULL);
41978308 3280
6edf0760
NC
3281 rela.r_offset = (h->root.u.def.value
3282 + h->root.u.def.section->output_section->vma
3283 + h->root.u.def.section->output_offset);
3284 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3285 rela.r_addend = 0;
3286 loc = s->contents;
47b0e7ad 3287 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3288 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3289 ++s->reloc_count;
3290 }
41978308 3291
6edf0760 3292 /* Mark some specially defined symbols as absolute. */
9637f6ef 3293 if (h == htab->root.hdynamic || h == htab->root.hgot)
6edf0760 3294 sym->st_shndx = SHN_ABS;
41978308 3295
6edf0760
NC
3296 return TRUE;
3297}
3298
3299
3300/* Finish up the dynamic sections. */
41978308 3301
6edf0760 3302static bfd_boolean
47b0e7ad
NC
3303m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3304 struct bfd_link_info *info)
6edf0760
NC
3305{
3306 struct elf_m32r_link_hash_table *htab;
3307 bfd *dynobj;
3308 asection *sdyn;
3309 asection *sgot;
3310
3311#ifdef DEBUG_PIC
47b0e7ad 3312 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3313#endif
41978308 3314
6edf0760 3315 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
3316 if (htab == NULL)
3317 return FALSE;
3318
6edf0760
NC
3319 dynobj = htab->root.dynobj;
3320
3321 sgot = htab->sgotplt;
3d4d4302 3322 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
41978308 3323
6edf0760
NC
3324 if (htab->root.dynamic_sections_created)
3325 {
3326 asection *splt;
3327 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3328
6edf0760 3329 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3330
6edf0760 3331 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3332 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC
3333
3334 for (; dyncon < dynconend; dyncon++)
3335 {
3336 Elf_Internal_Dyn dyn;
6edf0760 3337 asection *s;
41978308 3338
6edf0760 3339 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3340
6edf0760
NC
3341 switch (dyn.d_tag)
3342 {
3343 default:
3344 break;
3345
3346 case DT_PLTGOT:
4ade44b7 3347 s = htab->sgotplt;
6edf0760
NC
3348 goto get_vma;
3349 case DT_JMPREL:
4ade44b7 3350 s = htab->srelplt;
6edf0760 3351 get_vma:
4ade44b7 3352 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
6edf0760
NC
3353 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3354 break;
3355
3356 case DT_PLTRELSZ:
4ade44b7 3357 s = htab->srelplt;
eea6121a 3358 dyn.d_un.d_val = s->size;
6edf0760
NC
3359 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3360 break;
3361
3362 case DT_RELASZ:
3363 /* My reading of the SVR4 ABI indicates that the
3364 procedure linkage table relocs (DT_JMPREL) should be
3365 included in the overall relocs (DT_RELA). This is
3366 what Solaris does. However, UnixWare can not handle
3367 that case. Therefore, we override the DT_RELASZ entry
3368 here to make it not include the JMPREL relocs. Since
3369 the linker script arranges for .rela.plt to follow all
3370 other relocation sections, we don't have to worry
3371 about changing the DT_RELA entry. */
3372 if (htab->srelplt != NULL)
3373 {
4ade44b7 3374 s = htab->srelplt;
eea6121a 3375 dyn.d_un.d_val -= s->size;
6edf0760
NC
3376 }
3377 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3378 break;
3379 }
3380 }
41978308 3381
6edf0760
NC
3382 /* Fill in the first entry in the procedure linkage table. */
3383 splt = htab->splt;
eea6121a 3384 if (splt && splt->size > 0)
6edf0760 3385 {
0e1862bb 3386 if (bfd_link_pic (info))
6edf0760
NC
3387 {
3388 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3389 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3390 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3391 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3392 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3393 }
3394 else
3395 {
3396 unsigned long addr;
3397 /* addr = .got + 4 */
3398 addr = sgot->output_section->vma + sgot->output_offset + 4;
3399 bfd_put_32 (output_bfd,
3400 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3401 splt->contents);
41978308 3402 bfd_put_32 (output_bfd,
6edf0760
NC
3403 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3404 splt->contents + 4);
3405 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3406 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3407 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3408 }
3409
3410 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3411 PLT_ENTRY_SIZE;
3412 }
3413 }
3414
3415 /* Fill in the first three entries in the global offset table. */
eea6121a 3416 if (sgot && sgot->size > 0)
6edf0760
NC
3417 {
3418 if (sdyn == NULL)
3419 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3420 else
3421 bfd_put_32 (output_bfd,
3422 sdyn->output_section->vma + sdyn->output_offset,
3423 sgot->contents);
3424 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3425 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3426
3427 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3428 }
41978308 3429
6edf0760
NC
3430 return TRUE;
3431}
3432
252b5132
RH
3433\f
3434/* Set the right machine number. */
47b0e7ad 3435
b34976b6 3436static bfd_boolean
47b0e7ad 3437m32r_elf_object_p (bfd *abfd)
252b5132
RH
3438{
3439 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3440 {
3441 default:
3442 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3443 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3444 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3445 }
b34976b6 3446 return TRUE;
252b5132
RH
3447}
3448
3449/* Store the machine number in the flags field. */
47b0e7ad 3450
252b5132 3451static void
47b0e7ad
NC
3452m32r_elf_final_write_processing (bfd *abfd,
3453 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH
3454{
3455 unsigned long val;
3456
3457 switch (bfd_get_mach (abfd))
3458 {
3459 default:
3460 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3461 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3462 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH
3463 }
3464
3465 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3466 elf_elfheader (abfd)->e_flags |= val;
3467}
3468
c3668558 3469/* Function to keep M32R specific file flags. */
47b0e7ad 3470
b34976b6 3471static bfd_boolean
47b0e7ad 3472m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH
3473{
3474 BFD_ASSERT (!elf_flags_init (abfd)
3475 || elf_elfheader (abfd)->e_flags == flags);
3476
3477 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM
3478 elf_flags_init (abfd) = TRUE;
3479 return TRUE;
252b5132
RH
3480}
3481
252b5132
RH
3482/* Merge backend specific data from an object file to the output
3483 object file when linking. */
47b0e7ad 3484
b34976b6 3485static bfd_boolean
47b0e7ad 3486m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH
3487{
3488 flagword out_flags;
3489 flagword in_flags;
3490
3491 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3492 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3493 return TRUE;
252b5132
RH
3494
3495 in_flags = elf_elfheader (ibfd)->e_flags;
3496 out_flags = elf_elfheader (obfd)->e_flags;
3497
3498 if (! elf_flags_init (obfd))
3499 {
3500 /* If the input is the default architecture then do not
3501 bother setting the flags for the output architecture,
3502 instead allow future merges to do this. If no future
3503 merges ever set these flags then they will retain their
3504 unitialised values, which surprise surprise, correspond
3505 to the default values. */
3506 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3507 return TRUE;
c3668558 3508
b34976b6 3509 elf_flags_init (obfd) = TRUE;
252b5132
RH
3510 elf_elfheader (obfd)->e_flags = in_flags;
3511
3512 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3513 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC
3514 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3515 bfd_get_mach (ibfd));
252b5132 3516
b34976b6 3517 return TRUE;
252b5132
RH
3518 }
3519
3520 /* Check flag compatibility. */
3521 if (in_flags == out_flags)
b34976b6 3522 return TRUE;
252b5132
RH
3523
3524 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3525 {
88845958
NC
3526 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3527 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3528 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3529 {
4eca0228 3530 _bfd_error_handler
d003868e 3531 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH
3532
3533 bfd_set_error (bfd_error_bad_value);
b34976b6 3534 return FALSE;
252b5132
RH
3535 }
3536 }
3537
b34976b6 3538 return TRUE;
252b5132
RH
3539}
3540
47b0e7ad
NC
3541/* Display the flags field. */
3542
b34976b6 3543static bfd_boolean
47b0e7ad 3544m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH
3545{
3546 FILE * file = (FILE *) ptr;
c3668558 3547
f12123c0 3548 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3549
252b5132 3550 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3551
252b5132 3552 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3553
252b5132
RH
3554 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3555 {
3556 default:
3557 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3558 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3559 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3560 }
c3668558 3561
252b5132 3562 fputc ('\n', file);
c3668558 3563
b34976b6 3564 return TRUE;
252b5132
RH
3565}
3566
47b0e7ad
NC
3567static asection *
3568m32r_elf_gc_mark_hook (asection *sec,
07adf181 3569 struct bfd_link_info *info,
47b0e7ad
NC
3570 Elf_Internal_Rela *rel,
3571 struct elf_link_hash_entry *h,
3572 Elf_Internal_Sym *sym)
252b5132
RH
3573{
3574 if (h != NULL)
07adf181 3575 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH
3576 {
3577 case R_M32R_GNU_VTINHERIT:
3578 case R_M32R_GNU_VTENTRY:
6edf0760
NC
3579 case R_M32R_RELA_GNU_VTINHERIT:
3580 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM
3581 return NULL;
3582 }
1e2f5b6e 3583
07adf181 3584 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH
3585}
3586
b34976b6 3587static bfd_boolean
47b0e7ad
NC
3588m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3589 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3590 asection *sec ATTRIBUTE_UNUSED,
3591 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3592{
6edf0760
NC
3593 /* Update the got entry reference counts for the section being removed. */
3594 Elf_Internal_Shdr *symtab_hdr;
3595 struct elf_link_hash_entry **sym_hashes;
3596 bfd_signed_vma *local_got_refcounts;
3597 const Elf_Internal_Rela *rel, *relend;
6edf0760 3598
0e1862bb 3599 if (bfd_link_relocatable (info))
7dda2462
TG
3600 return TRUE;
3601
6edf0760
NC
3602 elf_section_data (sec)->local_dynrel = NULL;
3603
3604 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3605 sym_hashes = elf_sym_hashes (abfd);
3606 local_got_refcounts = elf_local_got_refcounts (abfd);
3607
3608 relend = relocs + sec->reloc_count;
3609 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM
3610 {
3611 unsigned long r_symndx;
3612 struct elf_link_hash_entry *h = NULL;
6edf0760 3613
3eb128b2
AM
3614 r_symndx = ELF32_R_SYM (rel->r_info);
3615 if (r_symndx >= symtab_hdr->sh_info)
3616 {
3617 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3618 while (h->root.type == bfd_link_hash_indirect
3619 || h->root.type == bfd_link_hash_warning)
3620 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3621 }
6edf0760 3622
3eb128b2
AM
3623 switch (ELF32_R_TYPE (rel->r_info))
3624 {
3625 case R_M32R_GOT16_HI_ULO:
3626 case R_M32R_GOT16_HI_SLO:
3627 case R_M32R_GOT16_LO:
3628 case R_M32R_GOTOFF:
3629 case R_M32R_GOTOFF_HI_ULO:
3630 case R_M32R_GOTOFF_HI_SLO:
3631 case R_M32R_GOTOFF_LO:
3632 case R_M32R_GOT24:
3633 case R_M32R_GOTPC_HI_ULO:
3634 case R_M32R_GOTPC_HI_SLO:
3635 case R_M32R_GOTPC_LO:
3636 case R_M32R_GOTPC24:
3637 if (h != NULL)
3638 {
3639 if (h->got.refcount > 0)
3640 h->got.refcount--;
3641 }
3642 else
3643 {
3644 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3645 local_got_refcounts[r_symndx]--;
3646 }
3647 break;
3648
3649 case R_M32R_16_RELA:
3650 case R_M32R_24_RELA:
3651 case R_M32R_32_RELA:
157e7bd1 3652 case R_M32R_REL32:
3eb128b2
AM
3653 case R_M32R_HI16_ULO_RELA:
3654 case R_M32R_HI16_SLO_RELA:
3655 case R_M32R_LO16_RELA:
3656 case R_M32R_SDA16_RELA:
8ce757c4 3657 case R_M32R_10_PCREL_RELA:
3eb128b2
AM
3658 case R_M32R_18_PCREL_RELA:
3659 case R_M32R_26_PCREL_RELA:
3660 if (h != NULL)
3661 {
3662 struct elf_m32r_link_hash_entry *eh;
3663 struct elf_m32r_dyn_relocs **pp;
3664 struct elf_m32r_dyn_relocs *p;
6edf0760 3665
0e1862bb 3666 if (!bfd_link_pic (info) && h->plt.refcount > 0)
3eb128b2 3667 h->plt.refcount -= 1;
6edf0760 3668
3eb128b2 3669 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3670
3eb128b2
AM
3671 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3672 if (p->sec == sec)
3673 {
8ce757c4
NC
3674 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3675 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3676 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
157e7bd1 3677 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3eb128b2
AM
3678 p->pc_count -= 1;
3679 p->count -= 1;
3680 if (p->count == 0)
3681 *pp = p->next;
3682 break;
3683 }
3684 }
3685 break;
6edf0760 3686
3eb128b2
AM
3687 case R_M32R_26_PLTREL:
3688 if (h != NULL)
3689 {
3690 if (h->plt.refcount > 0)
3691 h->plt.refcount--;
3692 }
3693 break;
6edf0760 3694
3eb128b2
AM
3695 default:
3696 break;
3697 }
3698 }
6edf0760 3699
b34976b6 3700 return TRUE;
252b5132
RH
3701}
3702
252b5132
RH
3703/* Look through the relocs for a section during the first phase.
3704 Since we don't do .gots or .plts, we just need to consider the
3705 virtual table relocs for gc. */
c3668558 3706
b34976b6 3707static bfd_boolean
47b0e7ad
NC
3708m32r_elf_check_relocs (bfd *abfd,
3709 struct bfd_link_info *info,
3710 asection *sec,
3711 const Elf_Internal_Rela *relocs)
252b5132
RH
3712{
3713 Elf_Internal_Shdr *symtab_hdr;
5582a088 3714 struct elf_link_hash_entry **sym_hashes;
252b5132
RH
3715 const Elf_Internal_Rela *rel;
3716 const Elf_Internal_Rela *rel_end;
6edf0760
NC
3717 struct elf_m32r_link_hash_table *htab;
3718 bfd *dynobj;
c7e2358a 3719 asection *sreloc;
c3668558 3720
0e1862bb 3721 if (bfd_link_relocatable (info))
b34976b6 3722 return TRUE;
c3668558 3723
c7e2358a 3724 sreloc = NULL;
252b5132
RH
3725 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3726 sym_hashes = elf_sym_hashes (abfd);
c3668558 3727
6edf0760 3728 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC
3729 if (htab == NULL)
3730 return FALSE;
3731
6edf0760 3732 dynobj = htab->root.dynobj;
6edf0760 3733
252b5132
RH
3734 rel_end = relocs + sec->reloc_count;
3735 for (rel = relocs; rel < rel_end; rel++)
3736 {
6edf0760 3737 int r_type;
252b5132
RH
3738 struct elf_link_hash_entry *h;
3739 unsigned long r_symndx;
c3668558 3740
252b5132 3741 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3742 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH
3743 if (r_symndx < symtab_hdr->sh_info)
3744 h = NULL;
3745 else
973a3492
L
3746 {
3747 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3748 while (h->root.type == bfd_link_hash_indirect
3749 || h->root.type == bfd_link_hash_warning)
3750 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM
3751
3752 /* PR15323, ref flags aren't set for references in the same
3753 object. */
3754 h->root.non_ir_ref = 1;
973a3492 3755 }
c3668558 3756
6edf0760
NC
3757 /* Some relocs require a global offset table. */
3758 if (htab->sgot == NULL)
3759 {
3760 switch (r_type)
3761 {
3762 case R_M32R_GOT16_HI_ULO:
3763 case R_M32R_GOT16_HI_SLO:
097f809a
NC
3764 case R_M32R_GOTOFF:
3765 case R_M32R_GOTOFF_HI_ULO:
3766 case R_M32R_GOTOFF_HI_SLO:
3767 case R_M32R_GOTOFF_LO:
6edf0760
NC
3768 case R_M32R_GOT16_LO:
3769 case R_M32R_GOTPC24:
3770 case R_M32R_GOTPC_HI_ULO:
3771 case R_M32R_GOTPC_HI_SLO:
3772 case R_M32R_GOTPC_LO:
3773 case R_M32R_GOT24:
3774 if (dynobj == NULL)
3775 htab->root.dynobj = dynobj = abfd;
3776 if (! create_got_section (dynobj, info))
3777 return FALSE;
3778 break;
3779
3780 default:
3781 break;
3782 }
3783 }
3784
3785 switch (r_type)
252b5132 3786 {
6edf0760
NC
3787 case R_M32R_GOT16_HI_ULO:
3788 case R_M32R_GOT16_HI_SLO:
41978308 3789 case R_M32R_GOT16_LO:
6edf0760
NC
3790 case R_M32R_GOT24:
3791
3792 if (h != NULL)
3793 h->got.refcount += 1;
3794 else
3795 {
3796 bfd_signed_vma *local_got_refcounts;
3797
3798 /* This is a global offset table entry for a local
3799 symbol. */
3800 local_got_refcounts = elf_local_got_refcounts (abfd);
3801 if (local_got_refcounts == NULL)
3802 {
3803 bfd_size_type size;
3804
3805 size = symtab_hdr->sh_info;
3806 size *= sizeof (bfd_signed_vma);
47b0e7ad 3807 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC
3808 if (local_got_refcounts == NULL)
3809 return FALSE;
3810 elf_local_got_refcounts (abfd) = local_got_refcounts;
3811 }
3812 local_got_refcounts[r_symndx] += 1;
3813 }
3814 break;
3815
3816 case R_M32R_26_PLTREL:
3817 /* This symbol requires a procedure linkage table entry. We
3818 actually build the entry in adjust_dynamic_symbol,
3819 because this might be a case of linking PIC code without
3820 linking in any dynamic objects, in which case we don't
3821 need to generate a procedure linkage table after all. */
41978308 3822
6edf0760
NC
3823 /* If this is a local symbol, we resolve it directly without
3824 creating a procedure linkage table entry. */
3825 if (h == NULL)
3826 continue;
3827
f5385ebf 3828 if (h->forced_local)
6edf0760
NC
3829 break;
3830
f5385ebf 3831 h->needs_plt = 1;
6edf0760
NC
3832 h->plt.refcount += 1;
3833 break;
3834
3835 case R_M32R_16_RELA:
3836 case R_M32R_24_RELA:
3837 case R_M32R_32_RELA:
157e7bd1 3838 case R_M32R_REL32:
6edf0760
NC
3839 case R_M32R_HI16_ULO_RELA:
3840 case R_M32R_HI16_SLO_RELA:
3841 case R_M32R_LO16_RELA:
3842 case R_M32R_SDA16_RELA:
8ce757c4 3843 case R_M32R_10_PCREL_RELA:
6edf0760
NC
3844 case R_M32R_18_PCREL_RELA:
3845 case R_M32R_26_PCREL_RELA:
3846
0e1862bb 3847 if (h != NULL && !bfd_link_pic (info))
6edf0760 3848 {
f5385ebf 3849 h->non_got_ref = 1;
6edf0760
NC
3850 h->plt.refcount += 1;
3851 }
3852
3853 /* If we are creating a shared library, and this is a reloc
3854 against a global symbol, or a non PC relative reloc
3855 against a local symbol, then we need to copy the reloc
3856 into the shared library. However, if we are linking with
3857 -Bsymbolic, we do not need to copy a reloc against a
3858 global symbol which is defined in an object we are
3859 including in the link (i.e., DEF_REGULAR is set). At
3860 this point we have not seen all the input files, so it is
3861 possible that DEF_REGULAR is not set now but will be set
3862 later (it is never cleared). We account for that
3863 possibility below by storing information in the
3864 dyn_relocs field of the hash table entry. A similar
3865 situation occurs when creating shared libraries and symbol
3866 visibility changes render the symbol local.
3867
3868 If on the other hand, we are creating an executable, we
3869 may need to keep relocations for symbols satisfied by a
3870 dynamic library if we manage to avoid copy relocs for the
3871 symbol. */
0e1862bb 3872 if ((bfd_link_pic (info)
6edf0760 3873 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3874 && (( r_type != R_M32R_26_PCREL_RELA
157e7bd1 3875 && r_type != R_M32R_18_PCREL_RELA
8ce757c4 3876 && r_type != R_M32R_10_PCREL_RELA
157e7bd1 3877 && r_type != R_M32R_REL32)
6edf0760
NC
3878 || (h != NULL
3879 && (! info->symbolic
3880 || h->root.type == bfd_link_hash_defweak
f5385ebf 3881 || !h->def_regular))))
0e1862bb 3882 || (!bfd_link_pic (info)
6edf0760
NC
3883 && (sec->flags & SEC_ALLOC) != 0
3884 && h != NULL
3885 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3886 || !h->def_regular)))
6edf0760
NC
3887 {
3888 struct elf_m32r_dyn_relocs *p;
3889 struct elf_m32r_dyn_relocs **head;
3890
3891 if (dynobj == NULL)
3892 htab->root.dynobj = dynobj = abfd;
3893
3894 /* When creating a shared object, we must copy these
3895 relocs into the output file. We create a reloc
3896 section in dynobj and make room for the reloc. */
3897 if (sreloc == NULL)
3898 {
83bac4b0
NC
3899 sreloc = _bfd_elf_make_dynamic_reloc_section
3900 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
41978308 3901
83bac4b0
NC
3902 if (sreloc == NULL)
3903 return FALSE;
6edf0760 3904 }
41978308 3905
6edf0760
NC
3906 /* If this is a global symbol, we count the number of
3907 relocations we need for this symbol. */
3908 if (h != NULL)
3909 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3910 else
3911 {
87d72d41 3912 /* Track dynamic relocs needed for local syms too. */
6edf0760 3913 asection *s;
6edfbbad 3914 void *vpp;
87d72d41 3915 Elf_Internal_Sym *isym;
6edf0760 3916
87d72d41
AM
3917 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3918 abfd, r_symndx);
3919 if (isym == NULL)
3920 return FALSE;
3921
3922 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3923 if (s == NULL)
3924 s = sec;
6edf0760 3925
6edfbbad
DJ
3926 vpp = &elf_section_data (s)->local_dynrel;
3927 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC
3928 }
3929
3930 p = *head;
3931 if (p == NULL || p->sec != sec)
3932 {
3933 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC
3934
3935 p = bfd_alloc (dynobj, amt);
6edf0760
NC
3936 if (p == NULL)
3937 return FALSE;
3938 p->next = *head;
3939 *head = p;
3940 p->sec = sec;
3941 p->count = 0;
3942 p->pc_count = 0;
3943 }
3944
3945 p->count += 1;
8ce757c4
NC
3946 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3947 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3948 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3949 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
6edf0760
NC
3950 p->pc_count += 1;
3951 }
3952 break;
3953
252b5132
RH
3954 /* This relocation describes the C++ object vtable hierarchy.
3955 Reconstruct it for later use during GC. */
6edf0760 3956 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 3957 case R_M32R_GNU_VTINHERIT:
c152c796 3958 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3959 return FALSE;
252b5132 3960 break;
c3668558 3961
252b5132
RH
3962 /* This relocation describes which C++ vtable entries are actually
3963 used. Record for later use during GC. */
3964 case R_M32R_GNU_VTENTRY:
d17e0c6e
JB
3965 BFD_ASSERT (h != NULL);
3966 if (h != NULL
3967 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 3968 return FALSE;
252b5132 3969 break;
6edf0760 3970 case R_M32R_RELA_GNU_VTENTRY:
d17e0c6e
JB
3971 BFD_ASSERT (h != NULL);
3972 if (h != NULL
3973 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC
3974 return FALSE;
3975 break;
252b5132
RH
3976 }
3977 }
c3668558 3978
b34976b6 3979 return TRUE;
252b5132 3980}
2f89ff8d 3981
b35d266b 3982static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 3983{
0112cd26
NC
3984 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3985 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3986 { NULL, 0, 0, 0, 0 }
7f4d3958
L
3987};
3988
6edf0760 3989static enum elf_reloc_type_class
7e612e98
AM
3990m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3991 const asection *rel_sec ATTRIBUTE_UNUSED,
3992 const Elf_Internal_Rela *rela)
6edf0760
NC
3993{
3994 switch ((int) ELF32_R_TYPE (rela->r_info))
3995 {
47b0e7ad
NC
3996 case R_M32R_RELATIVE: return reloc_class_relative;
3997 case R_M32R_JMP_SLOT: return reloc_class_plt;
3998 case R_M32R_COPY: return reloc_class_copy;
3999 default: return reloc_class_normal;
6edf0760
NC
4000 }
4001}
252b5132 4002\f
252b5132 4003#define ELF_ARCH bfd_arch_m32r
ae95ffa6 4004#define ELF_TARGET_ID M32R_ELF_DATA
aa4f99bb
AO
4005#define ELF_MACHINE_CODE EM_M32R
4006#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4007#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132 4008
6d00b590 4009#define TARGET_BIG_SYM m32r_elf32_vec
252b5132 4010#define TARGET_BIG_NAME "elf32-m32r"
6d00b590 4011#define TARGET_LITTLE_SYM m32r_elf32_le_vec
6edf0760 4012#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4013
6edf0760 4014#define elf_info_to_howto m32r_info_to_howto
252b5132
RH
4015#define elf_info_to_howto_rel m32r_info_to_howto_rel
4016#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4017#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4018#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4019#define elf_backend_relocate_section m32r_elf_relocate_section
4020#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4021#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4022#define elf_backend_check_relocs m32r_elf_check_relocs
4023
6edf0760
NC
4024#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4025#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4026#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
74541ad4
AM
4027#define elf_backend_omit_section_dynsym \
4028 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
6edf0760
NC
4029#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4030#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4031#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4032#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4033#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4034
252b5132 4035#define elf_backend_can_gc_sections 1
6edf0760 4036/*#if !USE_REL
b491616a 4037#define elf_backend_rela_normal 1
6edf0760
NC
4038#endif*/
4039#define elf_backend_can_refcount 1
4040#define elf_backend_want_got_plt 1
4041#define elf_backend_plt_readonly 1
4042#define elf_backend_want_plt_sym 0
4043#define elf_backend_got_header_size 12
4044
4045#define elf_backend_may_use_rel_p 1
4046#ifdef USE_M32R_OLD_RELOC
4047#define elf_backend_default_use_rela_p 0
4048#define elf_backend_may_use_rela_p 0
4049#else
4050#define elf_backend_default_use_rela_p 1
4051#define elf_backend_may_use_rela_p 1
b491616a 4052#endif
6edf0760 4053
252b5132
RH
4054#define elf_backend_object_p m32r_elf_object_p
4055#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH
4056#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4057#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4058#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4059#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4060
252b5132 4061#include "elf32-target.h"
6edf0760 4062
47b0e7ad 4063#undef ELF_MAXPAGESIZE
6edf0760
NC
4064#define ELF_MAXPAGESIZE 0x1000
4065
47b0e7ad 4066#undef TARGET_BIG_SYM
6d00b590 4067#define TARGET_BIG_SYM m32r_elf32_linux_vec
47b0e7ad 4068#undef TARGET_BIG_NAME
6edf0760 4069#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4070#undef TARGET_LITTLE_SYM
6d00b590 4071#define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
47b0e7ad 4072#undef TARGET_LITTLE_NAME
6edf0760 4073#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4074#undef elf32_bed
6edf0760
NC
4075#define elf32_bed elf32_m32r_lin_bed
4076
4077#include "elf32-target.h"
4078