2009-08-10 Tristan Gingold <gingold@adacore.com>
[deliverable/binutils-gdb.git] / bfd / elf32-m32r.c
CommitLineData
252b5132 1/* M32R-specific support for 32-bit ELF.
22d606e9 2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
83bac4b0 3 2006, 2007, 2008 Free Software Foundation, Inc.
252b5132 4
88845958 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
88845958
NC
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
88845958 10 (at your option) any later version.
252b5132 11
88845958
NC
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
88845958
NC
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
cd123cb7
NC
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
252b5132 21
252b5132 22#include "sysdep.h"
3db64b00 23#include "bfd.h"
252b5132
RH
24#include "libbfd.h"
25#include "elf-bfd.h"
26#include "elf/m32r.h"
27
252b5132
RH
28#define NOP_INSN 0x7000
29#define MAKE_PARALLEL(insn) ((insn) | 0x8000)
30
31/* Use REL instead of RELA to save space.
32 This only saves space in libraries and object files, but perhaps
33 relocs will be put in ROM? All in all though, REL relocs are a pain
34 to work with. */
6edf0760 35/* #define USE_REL 1
acf8aed4
AM
36
37#ifndef USE_REL
38#define USE_REL 0
6edf0760 39#endif */
47b0e7ad 40/* Use RELA. But use REL to link old objects for backwords compatibility. */
6edf0760
NC
41
42/* Functions for the M32R ELF linker. */
41978308 43
6edf0760
NC
44/* The name of the dynamic interpreter. This is put in the .interp
45 section. */
41978308 46
6edf0760 47#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
41978308 48
6edf0760 49/* The nop opcode we use. */
41978308 50
6edf0760 51#define M32R_NOP 0x7000f000
41978308 52
6edf0760 53#define PLT_EMPTY 0x10101010 /* RIE -> RIE */
41978308 54
6edf0760
NC
55/* The size in bytes of an entry in the procedure linkage table. */
56
57#define PLT_ENTRY_SIZE 20
58#define PLT_HEADER_SIZE 20
41978308 59
6edf0760
NC
60/* The first one entries in a procedure linkage table are reserved,
61 and the initial contents are unimportant (we zero them out).
62 Subsequent entries look like this. */
41978308 63
6edf0760
NC
64#define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
65#define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
66#define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
67#define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
68#define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 69
6edf0760
NC
70#define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
71#define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
72#define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
73#define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
74#define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 75
6edf0760
NC
76#define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
77#define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
78#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
79#define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
80#define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
81#define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
82#define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
83
252b5132 84
47b0e7ad 85/* Utility to actually perform an R_M32R_10_PCREL reloc. */
252b5132 86
47b0e7ad
NC
87static bfd_reloc_status_type
88m32r_elf_do_10_pcrel_reloc (bfd *abfd,
89 reloc_howto_type *howto,
90 asection *input_section,
91 bfd_byte *data,
92 bfd_vma offset,
93 asection *symbol_section ATTRIBUTE_UNUSED,
94 bfd_vma symbol_value,
95 bfd_vma addend)
96{
97 bfd_signed_vma relocation;
98 unsigned long x;
99 bfd_reloc_status_type status;
252b5132 100
47b0e7ad
NC
101 /* Sanity check the address (offset in section). */
102 if (offset > bfd_get_section_limit (abfd, input_section))
103 return bfd_reloc_outofrange;
252b5132 104
47b0e7ad
NC
105 relocation = symbol_value + addend;
106 /* Make it pc relative. */
107 relocation -= (input_section->output_section->vma
108 + input_section->output_offset);
109 /* These jumps mask off the lower two bits of the current address
110 before doing pcrel calculations. */
111 relocation -= (offset & -(bfd_vma) 4);
252b5132 112
47b0e7ad
NC
113 if (relocation < -0x200 || relocation > 0x1ff)
114 status = bfd_reloc_overflow;
115 else
116 status = bfd_reloc_ok;
252b5132 117
47b0e7ad
NC
118 x = bfd_get_16 (abfd, data + offset);
119 relocation >>= howto->rightshift;
120 relocation <<= howto->bitpos;
121 x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
122 bfd_put_16 (abfd, (bfd_vma) x, data + offset);
252b5132 123
47b0e7ad
NC
124 return status;
125}
252b5132 126
47b0e7ad 127/* Handle the R_M32R_10_PCREL reloc. */
252b5132 128
47b0e7ad
NC
129static bfd_reloc_status_type
130m32r_elf_10_pcrel_reloc (bfd * abfd,
131 arelent * reloc_entry,
132 asymbol * symbol,
133 void * data,
134 asection * input_section,
135 bfd * output_bfd,
136 char ** error_message ATTRIBUTE_UNUSED)
137{
138 /* This part is from bfd_elf_generic_reloc. */
139 if (output_bfd != NULL
140 && (symbol->flags & BSF_SECTION_SYM) == 0
141 && (! reloc_entry->howto->partial_inplace
142 || reloc_entry->addend == 0))
143 {
144 reloc_entry->address += input_section->output_offset;
145 return bfd_reloc_ok;
146 }
252b5132 147
47b0e7ad
NC
148 if (output_bfd != NULL)
149 /* FIXME: See bfd_perform_relocation. Is this right? */
150 return bfd_reloc_continue;
252b5132 151
47b0e7ad
NC
152 return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
153 input_section,
154 data, reloc_entry->address,
155 symbol->section,
156 (symbol->value
157 + symbol->section->output_section->vma
158 + symbol->section->output_offset),
159 reloc_entry->addend);
160}
252b5132 161
47b0e7ad
NC
162/* Do generic partial_inplace relocation.
163 This is a local replacement for bfd_elf_generic_reloc. */
252b5132 164
47b0e7ad
NC
165static bfd_reloc_status_type
166m32r_elf_generic_reloc (bfd *input_bfd,
167 arelent *reloc_entry,
168 asymbol *symbol,
169 void * data,
170 asection *input_section,
171 bfd *output_bfd,
172 char **error_message ATTRIBUTE_UNUSED)
173{
174 bfd_reloc_status_type ret;
175 bfd_vma relocation;
176 bfd_byte *inplace_address;
252b5132 177
47b0e7ad
NC
178 /* This part is from bfd_elf_generic_reloc.
179 If we're relocating, and this an external symbol, we don't want
180 to change anything. */
181 if (output_bfd != NULL
182 && (symbol->flags & BSF_SECTION_SYM) == 0
183 && reloc_entry->addend == 0)
184 {
185 reloc_entry->address += input_section->output_offset;
186 return bfd_reloc_ok;
187 }
6edf0760 188
47b0e7ad
NC
189 /* Now do the reloc in the usual way.
190 ??? It would be nice to call bfd_elf_generic_reloc here,
191 but we have partial_inplace set. bfd_elf_generic_reloc will
192 pass the handling back to bfd_install_relocation which will install
193 a section relative addend which is wrong. */
6edf0760 194
47b0e7ad
NC
195 /* Sanity check the address (offset in section). */
196 if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
197 return bfd_reloc_outofrange;
6edf0760 198
47b0e7ad
NC
199 ret = bfd_reloc_ok;
200 if (bfd_is_und_section (symbol->section)
201 && output_bfd == NULL)
202 ret = bfd_reloc_undefined;
6edf0760 203
47b0e7ad
NC
204 if (bfd_is_com_section (symbol->section)
205 || output_bfd != NULL)
206 relocation = 0;
207 else
208 relocation = symbol->value;
6edf0760 209
47b0e7ad
NC
210 /* Only do this for a final link. */
211 if (output_bfd == NULL)
212 {
213 relocation += symbol->section->output_section->vma;
214 relocation += symbol->section->output_offset;
215 }
6edf0760 216
47b0e7ad
NC
217 relocation += reloc_entry->addend;
218 inplace_address = (bfd_byte *) data + reloc_entry->address;
6edf0760 219
47b0e7ad
NC
220#define DOIT(x) \
221 x = ( (x & ~reloc_entry->howto->dst_mask) | \
222 (((x & reloc_entry->howto->src_mask) + relocation) & \
223 reloc_entry->howto->dst_mask))
6edf0760 224
47b0e7ad
NC
225 switch (reloc_entry->howto->size)
226 {
227 case 1:
228 {
229 short x = bfd_get_16 (input_bfd, inplace_address);
230 DOIT (x);
231 bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
232 }
233 break;
234 case 2:
235 {
236 unsigned long x = bfd_get_32 (input_bfd, inplace_address);
237 DOIT (x);
238 bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
239 }
240 break;
241 default:
242 BFD_ASSERT (0);
243 }
6edf0760 244
47b0e7ad
NC
245 if (output_bfd != NULL)
246 reloc_entry->address += input_section->output_offset;
6edf0760 247
47b0e7ad
NC
248 return ret;
249}
6edf0760 250
47b0e7ad
NC
251/* Handle the R_M32R_SDA16 reloc.
252 This reloc is used to compute the address of objects in the small data area
253 and to perform loads and stores from that area.
254 The lower 16 bits are sign extended and added to the register specified
255 in the instruction, which is assumed to point to _SDA_BASE_. */
6edf0760 256
47b0e7ad
NC
257static bfd_reloc_status_type
258m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
259 arelent *reloc_entry,
260 asymbol *symbol,
261 void * data ATTRIBUTE_UNUSED,
262 asection *input_section,
263 bfd *output_bfd,
264 char **error_message ATTRIBUTE_UNUSED)
265{
266 /* This part is from bfd_elf_generic_reloc. */
267 if (output_bfd != NULL
268 && (symbol->flags & BSF_SECTION_SYM) == 0
269 && (! reloc_entry->howto->partial_inplace
270 || reloc_entry->addend == 0))
271 {
272 reloc_entry->address += input_section->output_offset;
273 return bfd_reloc_ok;
274 }
6edf0760 275
47b0e7ad
NC
276 if (output_bfd != NULL)
277 /* FIXME: See bfd_perform_relocation. Is this right? */
278 return bfd_reloc_continue;
6edf0760 279
47b0e7ad
NC
280 /* FIXME: not sure what to do here yet. But then again, the linker
281 may never call us. */
282 abort ();
283}
6edf0760 284
47b0e7ad
NC
285\f
286/* Handle the R_M32R_HI16_[SU]LO relocs.
287 HI16_SLO is for the add3 and load/store with displacement instructions.
288 HI16_ULO is for the or3 instruction.
289 For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
290 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
291 we must add one to the high 16 bytes (which will get subtracted off when
292 the low 16 bits are added).
293 These relocs have to be done in combination with an R_M32R_LO16 reloc
294 because there is a carry from the LO16 to the HI16. Here we just save
295 the information we need; we do the actual relocation when we see the LO16.
296 This code is copied from the elf32-mips.c. We also support an arbitrary
297 number of HI16 relocs to be associated with a single LO16 reloc. The
298 assembler sorts the relocs to ensure each HI16 immediately precedes its
299 LO16. However if there are multiple copies, the assembler may not find
300 the real LO16 so it picks the first one it finds. */
6edf0760 301
47b0e7ad
NC
302struct m32r_hi16
303{
304 struct m32r_hi16 *next;
305 bfd_byte *addr;
306 bfd_vma addend;
307};
308
309/* FIXME: This should not be a static variable. */
310
311static struct m32r_hi16 *m32r_hi16_list;
312
313static bfd_reloc_status_type
314m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
315 arelent *reloc_entry,
316 asymbol *symbol,
317 void * data,
318 asection *input_section,
319 bfd *output_bfd,
320 char **error_message ATTRIBUTE_UNUSED)
321{
322 bfd_reloc_status_type ret;
323 bfd_vma relocation;
324 struct m32r_hi16 *n;
325
326 /* This part is from bfd_elf_generic_reloc.
327 If we're relocating, and this an external symbol, we don't want
328 to change anything. */
329 if (output_bfd != NULL
330 && (symbol->flags & BSF_SECTION_SYM) == 0
331 && reloc_entry->addend == 0)
332 {
333 reloc_entry->address += input_section->output_offset;
334 return bfd_reloc_ok;
335 }
336
337 /* Sanity check the address (offset in section). */
338 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
339 return bfd_reloc_outofrange;
340
341 ret = bfd_reloc_ok;
342 if (bfd_is_und_section (symbol->section)
343 && output_bfd == NULL)
344 ret = bfd_reloc_undefined;
345
346 if (bfd_is_com_section (symbol->section))
347 relocation = 0;
348 else
349 relocation = symbol->value;
350
351 relocation += symbol->section->output_section->vma;
352 relocation += symbol->section->output_offset;
353 relocation += reloc_entry->addend;
354
355 /* Save the information, and let LO16 do the actual relocation. */
356 n = bfd_malloc ((bfd_size_type) sizeof *n);
357 if (n == NULL)
358 return bfd_reloc_outofrange;
359 n->addr = (bfd_byte *) data + reloc_entry->address;
360 n->addend = relocation;
361 n->next = m32r_hi16_list;
362 m32r_hi16_list = n;
363
364 if (output_bfd != NULL)
365 reloc_entry->address += input_section->output_offset;
366
367 return ret;
368}
369
370/* Handle an M32R ELF HI16 reloc. */
371
372static void
373m32r_elf_relocate_hi16 (bfd *input_bfd,
374 int type,
375 Elf_Internal_Rela *relhi,
376 Elf_Internal_Rela *rello,
377 bfd_byte *contents,
378 bfd_vma addend)
379{
380 unsigned long insn;
381 bfd_vma addlo;
382
383 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
384
385 addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
386 if (type == R_M32R_HI16_SLO)
387 addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
388 else
389 addlo &= 0xffff;
390
391 addend += ((insn & 0xffff) << 16) + addlo;
392
393 /* Reaccount for sign extension of low part. */
394 if (type == R_M32R_HI16_SLO
395 && (addend & 0x8000) != 0)
396 addend += 0x10000;
397
398 bfd_put_32 (input_bfd,
399 (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
400 contents + relhi->r_offset);
401}
402
403/* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
404 inplace relocation; this function exists in order to do the
405 R_M32R_HI16_[SU]LO relocation described above. */
406
407static bfd_reloc_status_type
408m32r_elf_lo16_reloc (bfd *input_bfd,
409 arelent *reloc_entry,
410 asymbol *symbol,
411 void * data,
412 asection *input_section,
413 bfd *output_bfd,
414 char **error_message)
415{
416 /* This part is from bfd_elf_generic_reloc.
417 If we're relocating, and this an external symbol, we don't want
418 to change anything. */
419 if (output_bfd != NULL
420 && (symbol->flags & BSF_SECTION_SYM) == 0
421 && reloc_entry->addend == 0)
422 {
423 reloc_entry->address += input_section->output_offset;
424 return bfd_reloc_ok;
425 }
426
427 if (m32r_hi16_list != NULL)
428 {
429 struct m32r_hi16 *l;
430
431 l = m32r_hi16_list;
432 while (l != NULL)
433 {
434 unsigned long insn;
435 unsigned long val;
436 unsigned long vallo;
437 struct m32r_hi16 *next;
438
439 /* Do the HI16 relocation. Note that we actually don't need
440 to know anything about the LO16 itself, except where to
441 find the low 16 bits of the addend needed by the LO16. */
442 insn = bfd_get_32 (input_bfd, l->addr);
443 vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
444 & 0xffff) ^ 0x8000) - 0x8000;
445 val = ((insn & 0xffff) << 16) + vallo;
446 val += l->addend;
447
448 /* Reaccount for sign extension of low part. */
449 if ((val & 0x8000) != 0)
450 val += 0x10000;
451
452 insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
453 bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
454
455 next = l->next;
456 free (l);
457 l = next;
458 }
6edf0760 459
47b0e7ad
NC
460 m32r_hi16_list = NULL;
461 }
462
463 /* Now do the LO16 reloc in the usual way.
464 ??? It would be nice to call bfd_elf_generic_reloc here,
465 but we have partial_inplace set. bfd_elf_generic_reloc will
466 pass the handling back to bfd_install_relocation which will install
467 a section relative addend which is wrong. */
468 return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
469 input_section, output_bfd, error_message);
470}
471
472\f
473static reloc_howto_type m32r_elf_howto_table[] =
474{
475 /* This reloc does nothing. */
476 HOWTO (R_M32R_NONE, /* type */
6edf0760
NC
477 0, /* rightshift */
478 2, /* size (0 = byte, 1 = short, 2 = long) */
479 32, /* bitsize */
480 FALSE, /* pc_relative */
481 0, /* bitpos */
482 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC
483 bfd_elf_generic_reloc, /* special_function */
484 "R_M32R_NONE", /* name */
6edf0760 485 FALSE, /* partial_inplace */
47b0e7ad
NC
486 0, /* src_mask */
487 0, /* dst_mask */
6edf0760
NC
488 FALSE), /* pcrel_offset */
489
47b0e7ad
NC
490 /* A 16 bit absolute relocation. */
491 HOWTO (R_M32R_16, /* type */
6edf0760 492 0, /* rightshift */
47b0e7ad
NC
493 1, /* size (0 = byte, 1 = short, 2 = long) */
494 16, /* bitsize */
6edf0760
NC
495 FALSE, /* pc_relative */
496 0, /* bitpos */
497 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC
498 m32r_elf_generic_reloc,/* special_function */
499 "R_M32R_16", /* name */
500 TRUE, /* partial_inplace */
501 0xffff, /* src_mask */
502 0xffff, /* dst_mask */
6edf0760
NC
503 FALSE), /* pcrel_offset */
504
47b0e7ad
NC
505 /* A 32 bit absolute relocation. */
506 HOWTO (R_M32R_32, /* type */
6edf0760
NC
507 0, /* rightshift */
508 2, /* size (0 = byte, 1 = short, 2 = long) */
509 32, /* bitsize */
510 FALSE, /* pc_relative */
511 0, /* bitpos */
512 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC
513 m32r_elf_generic_reloc,/* special_function */
514 "R_M32R_32", /* name */
515 TRUE, /* partial_inplace */
6edf0760
NC
516 0xffffffff, /* src_mask */
517 0xffffffff, /* dst_mask */
518 FALSE), /* pcrel_offset */
519
47b0e7ad
NC
520 /* A 24 bit address. */
521 HOWTO (R_M32R_24, /* type */
6edf0760
NC
522 0, /* rightshift */
523 2, /* size (0 = byte, 1 = short, 2 = long) */
097f809a 524 24, /* bitsize */
6edf0760
NC
525 FALSE, /* pc_relative */
526 0, /* bitpos */
47b0e7ad
NC
527 complain_overflow_unsigned, /* complain_on_overflow */
528 m32r_elf_generic_reloc,/* special_function */
529 "R_M32R_24", /* name */
530 TRUE, /* partial_inplace */
097f809a
NC
531 0xffffff, /* src_mask */
532 0xffffff, /* dst_mask */
6edf0760
NC
533 FALSE), /* pcrel_offset */
534
47b0e7ad
NC
535 /* An PC Relative 10-bit relocation, shifted by 2.
536 This reloc is complicated because relocations are relative to pc & -4.
537 i.e. branches in the right insn slot use the address of the left insn
538 slot for pc. */
539 /* ??? It's not clear whether this should have partial_inplace set or not.
540 Branch relaxing in the assembler can store the addend in the insn,
541 and if bfd_install_relocation gets called the addend may get added
542 again. */
543 HOWTO (R_M32R_10_PCREL, /* type */
544 2, /* rightshift */
545 1, /* size (0 = byte, 1 = short, 2 = long) */
546 10, /* bitsize */
547 TRUE, /* pc_relative */
548 0, /* bitpos */
549 complain_overflow_signed, /* complain_on_overflow */
550 m32r_elf_10_pcrel_reloc, /* special_function */
551 "R_M32R_10_PCREL", /* name */
552 FALSE, /* partial_inplace */
553 0xff, /* src_mask */
554 0xff, /* dst_mask */
6edf0760
NC
555 TRUE), /* pcrel_offset */
556
47b0e7ad
NC
557 /* A relative 18 bit relocation, right shifted by 2. */
558 HOWTO (R_M32R_18_PCREL, /* type */
559 2, /* rightshift */
6edf0760
NC
560 2, /* size (0 = byte, 1 = short, 2 = long) */
561 16, /* bitsize */
47b0e7ad 562 TRUE, /* pc_relative */
6edf0760 563 0, /* bitpos */
47b0e7ad 564 complain_overflow_signed, /* complain_on_overflow */
6edf0760 565 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 566 "R_M32R_18_PCREL", /* name */
6edf0760 567 FALSE, /* partial_inplace */
47b0e7ad
NC
568 0xffff, /* src_mask */
569 0xffff, /* dst_mask */
570 TRUE), /* pcrel_offset */
6edf0760 571
47b0e7ad
NC
572 /* A relative 26 bit relocation, right shifted by 2. */
573 /* ??? It's not clear whether this should have partial_inplace set or not.
574 Branch relaxing in the assembler can store the addend in the insn,
575 and if bfd_install_relocation gets called the addend may get added
576 again. */
577 HOWTO (R_M32R_26_PCREL, /* type */
578 2, /* rightshift */
6edf0760 579 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad
NC
580 26, /* bitsize */
581 TRUE, /* pc_relative */
6edf0760 582 0, /* bitpos */
47b0e7ad 583 complain_overflow_signed, /* complain_on_overflow */
6edf0760 584 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 585 "R_M32R_26_PCREL", /* name */
6edf0760 586 FALSE, /* partial_inplace */
47b0e7ad
NC
587 0xffffff, /* src_mask */
588 0xffffff, /* dst_mask */
589 TRUE), /* pcrel_offset */
6edf0760 590
47b0e7ad
NC
591 /* High 16 bits of address when lower 16 is or'd in. */
592 HOWTO (R_M32R_HI16_ULO, /* type */
593 16, /* rightshift */
6edf0760
NC
594 2, /* size (0 = byte, 1 = short, 2 = long) */
595 16, /* bitsize */
596 FALSE, /* pc_relative */
597 0, /* bitpos */
598 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
599 m32r_elf_hi16_reloc, /* special_function */
600 "R_M32R_HI16_ULO", /* name */
601 TRUE, /* partial_inplace */
6edf0760
NC
602 0x0000ffff, /* src_mask */
603 0x0000ffff, /* dst_mask */
604 FALSE), /* pcrel_offset */
605
47b0e7ad
NC
606 /* High 16 bits of address when lower 16 is added in. */
607 HOWTO (R_M32R_HI16_SLO, /* type */
6edf0760
NC
608 16, /* rightshift */
609 2, /* size (0 = byte, 1 = short, 2 = long) */
610 16, /* bitsize */
611 FALSE, /* pc_relative */
612 0, /* bitpos */
613 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
614 m32r_elf_hi16_reloc, /* special_function */
615 "R_M32R_HI16_SLO", /* name */
616 TRUE, /* partial_inplace */
6edf0760
NC
617 0x0000ffff, /* src_mask */
618 0x0000ffff, /* dst_mask */
47b0e7ad 619 FALSE), /* pcrel_offset */
6edf0760 620
47b0e7ad
NC
621 /* Lower 16 bits of address. */
622 HOWTO (R_M32R_LO16, /* type */
623 0, /* rightshift */
6edf0760
NC
624 2, /* size (0 = byte, 1 = short, 2 = long) */
625 16, /* bitsize */
626 FALSE, /* pc_relative */
627 0, /* bitpos */
628 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC
629 m32r_elf_lo16_reloc, /* special_function */
630 "R_M32R_LO16", /* name */
631 TRUE, /* partial_inplace */
6edf0760
NC
632 0x0000ffff, /* src_mask */
633 0x0000ffff, /* dst_mask */
47b0e7ad 634 FALSE), /* pcrel_offset */
6edf0760 635
47b0e7ad
NC
636 /* Small data area 16 bits offset. */
637 HOWTO (R_M32R_SDA16, /* type */
6edf0760
NC
638 0, /* rightshift */
639 2, /* size (0 = byte, 1 = short, 2 = long) */
640 16, /* bitsize */
641 FALSE, /* pc_relative */
642 0, /* bitpos */
47b0e7ad
NC
643 complain_overflow_signed, /* complain_on_overflow */
644 m32r_elf_sda16_reloc, /* special_function */
645 "R_M32R_SDA16", /* name */
646 TRUE, /* partial_inplace */ /* FIXME: correct? */
6edf0760
NC
647 0x0000ffff, /* src_mask */
648 0x0000ffff, /* dst_mask */
47b0e7ad 649 FALSE), /* pcrel_offset */
097f809a 650
47b0e7ad
NC
651 /* GNU extension to record C++ vtable hierarchy. */
652 HOWTO (R_M32R_GNU_VTINHERIT, /* type */
653 0, /* rightshift */
654 2, /* size (0 = byte, 1 = short, 2 = long) */
655 0, /* bitsize */
656 FALSE, /* pc_relative */
657 0, /* bitpos */
658 complain_overflow_dont, /* complain_on_overflow */
659 NULL, /* special_function */
660 "R_M32R_GNU_VTINHERIT", /* name */
661 FALSE, /* partial_inplace */
662 0, /* src_mask */
663 0, /* dst_mask */
664 FALSE), /* pcrel_offset */
665
666 /* GNU extension to record C++ vtable member usage. */
667 HOWTO (R_M32R_GNU_VTENTRY, /* type */
668 0, /* rightshift */
669 2, /* size (0 = byte, 1 = short, 2 = long) */
670 0, /* bitsize */
671 FALSE, /* pc_relative */
672 0, /* bitpos */
673 complain_overflow_dont, /* complain_on_overflow */
674 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
675 "R_M32R_GNU_VTENTRY", /* name */
676 FALSE, /* partial_inplace */
677 0, /* src_mask */
678 0, /* dst_mask */
679 FALSE), /* pcrel_offset */
680
681 EMPTY_HOWTO (13),
682 EMPTY_HOWTO (14),
683 EMPTY_HOWTO (15),
684 EMPTY_HOWTO (16),
685 EMPTY_HOWTO (17),
686 EMPTY_HOWTO (18),
687 EMPTY_HOWTO (19),
688 EMPTY_HOWTO (20),
689 EMPTY_HOWTO (21),
690 EMPTY_HOWTO (22),
691 EMPTY_HOWTO (23),
692 EMPTY_HOWTO (24),
693 EMPTY_HOWTO (25),
694 EMPTY_HOWTO (26),
695 EMPTY_HOWTO (27),
696 EMPTY_HOWTO (28),
697 EMPTY_HOWTO (29),
698 EMPTY_HOWTO (30),
699 EMPTY_HOWTO (31),
700 EMPTY_HOWTO (32),
701
702 /* A 16 bit absolute relocation. */
703 HOWTO (R_M32R_16_RELA, /* type */
704 0, /* rightshift */
705 1, /* size (0 = byte, 1 = short, 2 = long) */
097f809a
NC
706 16, /* bitsize */
707 FALSE, /* pc_relative */
708 0, /* bitpos */
47b0e7ad 709 complain_overflow_bitfield, /* complain_on_overflow */
097f809a 710 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 711 "R_M32R_16_RELA", /* name */
097f809a 712 FALSE, /* partial_inplace */
47b0e7ad
NC
713 0xffff, /* src_mask */
714 0xffff, /* dst_mask */
097f809a
NC
715 FALSE), /* pcrel_offset */
716
47b0e7ad
NC
717 /* A 32 bit absolute relocation. */
718 HOWTO (R_M32R_32_RELA, /* type */
719 0, /* rightshift */
097f809a 720 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 721 32, /* bitsize */
097f809a
NC
722 FALSE, /* pc_relative */
723 0, /* bitpos */
47b0e7ad
NC
724 complain_overflow_bitfield, /* complain_on_overflow */
725 bfd_elf_generic_reloc,/* special_function */
726 "R_M32R_32_RELA", /* name */
097f809a 727 FALSE, /* partial_inplace */
47b0e7ad
NC
728 0xffffffff, /* src_mask */
729 0xffffffff, /* dst_mask */
097f809a
NC
730 FALSE), /* pcrel_offset */
731
47b0e7ad
NC
732 /* A 24 bit address. */
733 HOWTO (R_M32R_24_RELA, /* type */
097f809a
NC
734 0, /* rightshift */
735 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 736 24, /* bitsize */
097f809a
NC
737 FALSE, /* pc_relative */
738 0, /* bitpos */
47b0e7ad
NC
739 complain_overflow_unsigned, /* complain_on_overflow */
740 bfd_elf_generic_reloc,/* special_function */
741 "R_M32R_24_RELA", /* name */
097f809a 742 FALSE, /* partial_inplace */
47b0e7ad
NC
743 0xffffff, /* src_mask */
744 0xffffff, /* dst_mask */
097f809a 745 FALSE), /* pcrel_offset */
252b5132 746
47b0e7ad
NC
747 HOWTO (R_M32R_10_PCREL_RELA, /* type */
748 2, /* rightshift */
749 1, /* size (0 = byte, 1 = short, 2 = long) */
750 10, /* bitsize */
751 TRUE, /* pc_relative */
752 0, /* bitpos */
753 complain_overflow_signed, /* complain_on_overflow */
754 m32r_elf_10_pcrel_reloc, /* special_function */
755 "R_M32R_10_PCREL_RELA",/* name */
756 FALSE, /* partial_inplace */
757 0xff, /* src_mask */
758 0xff, /* dst_mask */
759 TRUE), /* pcrel_offset */
252b5132 760
47b0e7ad
NC
761 /* A relative 18 bit relocation, right shifted by 2. */
762 HOWTO (R_M32R_18_PCREL_RELA, /* type */
763 2, /* rightshift */
764 2, /* size (0 = byte, 1 = short, 2 = long) */
765 16, /* bitsize */
766 TRUE, /* pc_relative */
767 0, /* bitpos */
768 complain_overflow_signed, /* complain_on_overflow */
769 bfd_elf_generic_reloc, /* special_function */
770 "R_M32R_18_PCREL_RELA",/* name */
771 FALSE, /* partial_inplace */
772 0xffff, /* src_mask */
773 0xffff, /* dst_mask */
774 TRUE), /* pcrel_offset */
252b5132 775
47b0e7ad
NC
776 /* A relative 26 bit relocation, right shifted by 2. */
777 HOWTO (R_M32R_26_PCREL_RELA, /* type */
778 2, /* rightshift */
779 2, /* size (0 = byte, 1 = short, 2 = long) */
780 26, /* bitsize */
781 TRUE, /* pc_relative */
782 0, /* bitpos */
783 complain_overflow_signed, /* complain_on_overflow */
784 bfd_elf_generic_reloc, /* special_function */
785 "R_M32R_26_PCREL_RELA",/* name */
786 FALSE, /* partial_inplace */
787 0xffffff, /* src_mask */
788 0xffffff, /* dst_mask */
789 TRUE), /* pcrel_offset */
4c72e23a 790
47b0e7ad
NC
791 /* High 16 bits of address when lower 16 is or'd in. */
792 HOWTO (R_M32R_HI16_ULO_RELA, /* type */
793 16, /* rightshift */
794 2, /* size (0 = byte, 1 = short, 2 = long) */
795 16, /* bitsize */
796 FALSE, /* pc_relative */
797 0, /* bitpos */
798 complain_overflow_dont, /* complain_on_overflow */
799 bfd_elf_generic_reloc, /* special_function */
800 "R_M32R_HI16_ULO_RELA",/* name */
801 FALSE, /* partial_inplace */
802 0x0000ffff, /* src_mask */
803 0x0000ffff, /* dst_mask */
804 FALSE), /* pcrel_offset */
252b5132 805
47b0e7ad
NC
806 /* High 16 bits of address when lower 16 is added in. */
807 HOWTO (R_M32R_HI16_SLO_RELA, /* type */
808 16, /* rightshift */
809 2, /* size (0 = byte, 1 = short, 2 = long) */
810 16, /* bitsize */
811 FALSE, /* pc_relative */
812 0, /* bitpos */
813 complain_overflow_dont, /* complain_on_overflow */
814 bfd_elf_generic_reloc, /* special_function */
815 "R_M32R_HI16_SLO_RELA",/* name */
816 FALSE, /* partial_inplace */
817 0x0000ffff, /* src_mask */
818 0x0000ffff, /* dst_mask */
819 FALSE), /* pcrel_offset */
252b5132 820
47b0e7ad
NC
821 /* Lower 16 bits of address. */
822 HOWTO (R_M32R_LO16_RELA, /* type */
823 0, /* rightshift */
824 2, /* size (0 = byte, 1 = short, 2 = long) */
825 16, /* bitsize */
826 FALSE, /* pc_relative */
827 0, /* bitpos */
828 complain_overflow_dont, /* complain_on_overflow */
829 bfd_elf_generic_reloc, /* special_function */
830 "R_M32R_LO16_RELA", /* name */
831 FALSE, /* partial_inplace */
832 0x0000ffff, /* src_mask */
833 0x0000ffff, /* dst_mask */
834 FALSE), /* pcrel_offset */
252b5132 835
47b0e7ad
NC
836 /* Small data area 16 bits offset. */
837 HOWTO (R_M32R_SDA16_RELA, /* type */
838 0, /* rightshift */
839 2, /* size (0 = byte, 1 = short, 2 = long) */
840 16, /* bitsize */
841 FALSE, /* pc_relative */
842 0, /* bitpos */
843 complain_overflow_signed, /* complain_on_overflow */
844 bfd_elf_generic_reloc, /* special_function */
845 "R_M32R_SDA16_RELA", /* name */
846 TRUE, /* partial_inplace */ /* FIXME: correct? */
847 0x0000ffff, /* src_mask */
848 0x0000ffff, /* dst_mask */
849 FALSE), /* pcrel_offset */
252b5132 850
47b0e7ad
NC
851 /* GNU extension to record C++ vtable hierarchy. */
852 HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
853 0, /* rightshift */
854 2, /* size (0 = byte, 1 = short, 2 = long) */
855 0, /* bitsize */
856 FALSE, /* pc_relative */
857 0, /* bitpos */
858 complain_overflow_dont, /* complain_on_overflow */
859 NULL, /* special_function */
860 "R_M32R_RELA_GNU_VTINHERIT", /* name */
861 FALSE, /* partial_inplace */
862 0, /* src_mask */
863 0, /* dst_mask */
864 FALSE), /* pcrel_offset */
252b5132 865
47b0e7ad
NC
866 /* GNU extension to record C++ vtable member usage. */
867 HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
868 0, /* rightshift */
869 2, /* size (0 = byte, 1 = short, 2 = long) */
870 0, /* bitsize */
871 FALSE, /* pc_relative */
872 0, /* bitpos */
873 complain_overflow_dont, /* complain_on_overflow */
874 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
875 "R_M32R_RELA_GNU_VTENTRY", /* name */
876 FALSE, /* partial_inplace */
877 0, /* src_mask */
878 0, /* dst_mask */
879 FALSE), /* pcrel_offset */
252b5132 880
157e7bd1
NC
881 /* A 32 bit PC relative relocation. */
882 HOWTO (R_M32R_REL32, /* type */
883 0, /* rightshift */
884 2, /* size (0 = byte, 1 = short, 2 = long) */
885 32, /* bitsize */
886 TRUE, /* pc_relative */
887 0, /* bitpos */
888 complain_overflow_bitfield, /* complain_on_overflow */
889 bfd_elf_generic_reloc,/* special_function */
890 "R_M32R_REL32", /* name */
891 FALSE, /* partial_inplace */
892 0xffffffff, /* src_mask */
893 0xffffffff, /* dst_mask */
894 TRUE), /* pcrel_offset */
895
47b0e7ad
NC
896 EMPTY_HOWTO (46),
897 EMPTY_HOWTO (47),
252b5132 898
47b0e7ad
NC
899 /* Like R_M32R_24, but referring to the GOT table entry for
900 the symbol. */
901 HOWTO (R_M32R_GOT24, /* type */
902 0, /* rightshift */
903 2, /* size (0 = byte, 1 = short, 2 = long) */
904 24, /* bitsize */
905 FALSE, /* pc_relative */
906 0, /* bitpos */
907 complain_overflow_unsigned, /* complain_on_overflow */
908 bfd_elf_generic_reloc, /* special_function */
909 "R_M32R_GOT24", /* name */
910 FALSE, /* partial_inplace */
911 0xffffff, /* src_mask */
912 0xffffff, /* dst_mask */
913 FALSE), /* pcrel_offset */
8b125cde 914
47b0e7ad
NC
915 /* Like R_M32R_PCREL, but referring to the procedure linkage table
916 entry for the symbol. */
917 HOWTO (R_M32R_26_PLTREL, /* type */
918 2, /* rightshift */
919 2, /* size (0 = byte, 1 = short, 2 = long) */
920 24, /* bitsize */
921 TRUE, /* pc_relative */
922 0, /* bitpos */
923 complain_overflow_signed, /* complain_on_overflow */
924 bfd_elf_generic_reloc, /* special_function */
925 "R_M32R_26_PLTREL", /* name */
926 FALSE, /* partial_inplace */
927 0xffffff, /* src_mask */
928 0xffffff, /* dst_mask */
929 TRUE), /* pcrel_offset */
8b125cde 930
47b0e7ad
NC
931 /* This is used only by the dynamic linker. The symbol should exist
932 both in the object being run and in some shared library. The
933 dynamic linker copies the data addressed by the symbol from the
934 shared library into the object, because the object being
935 run has to have the data at some particular address. */
936 HOWTO (R_M32R_COPY, /* type */
937 0, /* rightshift */
938 2, /* size (0 = byte, 1 = short, 2 = long) */
939 32, /* bitsize */
940 FALSE, /* pc_relative */
941 0, /* bitpos */
942 complain_overflow_bitfield, /* complain_on_overflow */
943 bfd_elf_generic_reloc, /* special_function */
944 "R_M32R_COPY", /* name */
945 FALSE, /* partial_inplace */
946 0xffffffff, /* src_mask */
947 0xffffffff, /* dst_mask */
948 FALSE), /* pcrel_offset */
8b125cde 949
47b0e7ad
NC
950 /* Like R_M32R_24, but used when setting global offset table
951 entries. */
952 HOWTO (R_M32R_GLOB_DAT, /* type */
953 0, /* rightshift */
954 2, /* size (0 = byte, 1 = short, 2 = long) */
955 32, /* bitsize */
956 FALSE, /* pc_relative */
957 0, /* bitpos */
958 complain_overflow_bitfield, /* complain_on_overflow */
959 bfd_elf_generic_reloc, /* special_function */
960 "R_M32R_GLOB_DAT", /* name */
961 FALSE, /* partial_inplace */
962 0xffffffff, /* src_mask */
963 0xffffffff, /* dst_mask */
964 FALSE), /* pcrel_offset */
8b125cde 965
47b0e7ad
NC
966 /* Marks a procedure linkage table entry for a symbol. */
967 HOWTO (R_M32R_JMP_SLOT, /* type */
968 0, /* rightshift */
969 2, /* size (0 = byte, 1 = short, 2 = long) */
970 32, /* bitsize */
971 FALSE, /* pc_relative */
972 0, /* bitpos */
973 complain_overflow_bitfield, /* complain_on_overflow */
974 bfd_elf_generic_reloc, /* special_function */
975 "R_M32R_JMP_SLOT", /* name */
976 FALSE, /* partial_inplace */
977 0xffffffff, /* src_mask */
978 0xffffffff, /* dst_mask */
979 FALSE), /* pcrel_offset */
4c72e23a 980
47b0e7ad
NC
981 /* Used only by the dynamic linker. When the object is run, this
982 longword is set to the load address of the object, plus the
983 addend. */
984 HOWTO (R_M32R_RELATIVE, /* type */
985 0, /* rightshift */
986 2, /* size (0 = byte, 1 = short, 2 = long) */
987 32, /* bitsize */
988 FALSE, /* pc_relative */
989 0, /* bitpos */
990 complain_overflow_bitfield, /* complain_on_overflow */
991 bfd_elf_generic_reloc, /* special_function */
992 "R_M32R_RELATIVE", /* name */
993 FALSE, /* partial_inplace */
994 0xffffffff, /* src_mask */
995 0xffffffff, /* dst_mask */
996 FALSE), /* pcrel_offset */
4c72e23a 997
47b0e7ad
NC
998 HOWTO (R_M32R_GOTOFF, /* type */
999 0, /* rightshift */
1000 2, /* size (0 = byte, 1 = short, 2 = long) */
1001 24, /* bitsize */
1002 FALSE, /* pc_relative */
1003 0, /* bitpos */
1004 complain_overflow_bitfield, /* complain_on_overflow */
1005 bfd_elf_generic_reloc, /* special_function */
1006 "R_M32R_GOTOFF", /* name */
1007 FALSE, /* partial_inplace */
1008 0xffffff, /* src_mask */
1009 0xffffff, /* dst_mask */
1010 FALSE), /* pcrel_offset */
4c72e23a 1011
47b0e7ad
NC
1012 /* An PC Relative 24-bit relocation used when setting PIC offset
1013 table register. */
1014 HOWTO (R_M32R_GOTPC24, /* type */
1015 0, /* rightshift */
1016 2, /* size (0 = byte, 1 = short, 2 = long) */
1017 24, /* bitsize */
1018 TRUE, /* pc_relative */
1019 0, /* bitpos */
1020 complain_overflow_unsigned, /* complain_on_overflow */
1021 bfd_elf_generic_reloc, /* special_function */
1022 "R_M32R_GOTPC24", /* name */
1023 FALSE, /* partial_inplace */
1024 0xffffff, /* src_mask */
1025 0xffffff, /* dst_mask */
1026 TRUE), /* pcrel_offset */
4c72e23a 1027
47b0e7ad
NC
1028 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1029 the symbol. */
1030 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1031 16, /* rightshift */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 16, /* bitsize */
1034 FALSE, /* pc_relative */
1035 0, /* bitpos */
1036 complain_overflow_dont, /* complain_on_overflow */
1037 bfd_elf_generic_reloc, /* special_function */
1038 "R_M32R_GOT16_HI_ULO", /* name */
1039 FALSE, /* partial_inplace */
1040 0x0000ffff, /* src_mask */
1041 0x0000ffff, /* dst_mask */
1042 FALSE), /* pcrel_offset */
4c72e23a 1043
47b0e7ad
NC
1044 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1045 the symbol. */
1046 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1047 16, /* rightshift */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1049 16, /* bitsize */
1050 FALSE, /* pc_relative */
1051 0, /* bitpos */
1052 complain_overflow_dont, /* complain_on_overflow */
1053 bfd_elf_generic_reloc, /* special_function */
1054 "R_M32R_GOT16_HI_SLO", /* name */
1055 FALSE, /* partial_inplace */
1056 0x0000ffff, /* src_mask */
1057 0x0000ffff, /* dst_mask */
1058 FALSE), /* pcrel_offset */
8b125cde 1059
47b0e7ad
NC
1060 /* Like R_M32R_LO16, but referring to the GOT table entry for
1061 the symbol. */
1062 HOWTO (R_M32R_GOT16_LO, /* type */
1063 0, /* rightshift */
1064 2, /* size (0 = byte, 1 = short, 2 = long) */
1065 16, /* bitsize */
1066 FALSE, /* pc_relative */
1067 0, /* bitpos */
1068 complain_overflow_dont, /* complain_on_overflow */
1069 bfd_elf_generic_reloc, /* special_function */
1070 "R_M32R_GOT16_LO", /* name */
1071 FALSE, /* partial_inplace */
1072 0x0000ffff, /* src_mask */
1073 0x0000ffff, /* dst_mask */
1074 FALSE), /* pcrel_offset */
4c72e23a 1075
47b0e7ad
NC
1076 /* An PC Relative relocation used when setting PIC offset table register.
1077 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1078 the symbol. */
1079 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1080 16, /* rightshift */
1081 2, /* size (0 = byte, 1 = short, 2 = long) */
1082 16, /* bitsize */
1083 FALSE, /* pc_relative */
1084 0, /* bitpos */
1085 complain_overflow_dont, /* complain_on_overflow */
1086 bfd_elf_generic_reloc, /* special_function */
1087 "R_M32R_GOTPC_HI_ULO", /* name */
1088 FALSE, /* partial_inplace */
1089 0x0000ffff, /* src_mask */
1090 0x0000ffff, /* dst_mask */
1091 TRUE), /* pcrel_offset */
4c72e23a 1092
47b0e7ad
NC
1093 /* An PC Relative relocation used when setting PIC offset table register.
1094 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1095 the symbol. */
1096 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1097 16, /* rightshift */
1098 2, /* size (0 = byte, 1 = short, 2 = long) */
1099 16, /* bitsize */
1100 FALSE, /* pc_relative */
1101 0, /* bitpos */
1102 complain_overflow_dont, /* complain_on_overflow */
1103 bfd_elf_generic_reloc, /* special_function */
1104 "R_M32R_GOTPC_HI_SLO", /* name */
1105 FALSE, /* partial_inplace */
1106 0x0000ffff, /* src_mask */
1107 0x0000ffff, /* dst_mask */
1108 TRUE), /* pcrel_offset */
4c72e23a 1109
47b0e7ad
NC
1110 /* An PC Relative relocation used when setting PIC offset table register.
1111 Like R_M32R_LO16, but referring to the GOT table entry for
1112 the symbol. */
1113 HOWTO (R_M32R_GOTPC_LO, /* type */
1114 0, /* rightshift */
1115 2, /* size (0 = byte, 1 = short, 2 = long) */
1116 16, /* bitsize */
1117 FALSE, /* pc_relative */
1118 0, /* bitpos */
1119 complain_overflow_dont, /* complain_on_overflow */
1120 bfd_elf_generic_reloc, /* special_function */
1121 "R_M32R_GOTPC_LO", /* name */
1122 FALSE, /* partial_inplace */
1123 0x0000ffff, /* src_mask */
1124 0x0000ffff, /* dst_mask */
1125 TRUE), /* pcrel_offset */
252b5132 1126
47b0e7ad
NC
1127 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1128 16, /* rightshift */
1129 2, /* size (0 = byte, 1 = short, 2 = long) */
1130 16, /* bitsize */
1131 FALSE, /* pc_relative */
1132 0, /* bitpos */
1133 complain_overflow_dont, /* complain_on_overflow */
1134 bfd_elf_generic_reloc, /* special_function */
1135 "R_M32R_GOTOFF_HI_ULO",/* name */
1136 FALSE, /* partial_inplace */
1137 0x0000ffff, /* src_mask */
1138 0x0000ffff, /* dst_mask */
1139 FALSE), /* pcrel_offset */
252b5132 1140
47b0e7ad
NC
1141 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1142 16, /* rightshift */
1143 2, /* size (0 = byte, 1 = short, 2 = long) */
1144 16, /* bitsize */
1145 FALSE, /* pc_relative */
1146 0, /* bitpos */
1147 complain_overflow_dont, /* complain_on_overflow */
1148 bfd_elf_generic_reloc, /* special_function */
1149 "R_M32R_GOTOFF_HI_SLO",/* name */
1150 FALSE, /* partial_inplace */
1151 0x0000ffff, /* src_mask */
1152 0x0000ffff, /* dst_mask */
1153 FALSE), /* pcrel_offset */
252b5132 1154
47b0e7ad
NC
1155 HOWTO (R_M32R_GOTOFF_LO, /* type */
1156 0, /* rightshift */
1157 2, /* size (0 = byte, 1 = short, 2 = long) */
1158 16, /* bitsize */
1159 FALSE, /* pc_relative */
1160 0, /* bitpos */
1161 complain_overflow_dont, /* complain_on_overflow */
1162 bfd_elf_generic_reloc, /* special_function */
1163 "R_M32R_GOTOFF_LO", /* name */
1164 FALSE, /* partial_inplace */
1165 0x0000ffff, /* src_mask */
1166 0x0000ffff, /* dst_mask */
1167 FALSE), /* pcrel_offset */
1168};
252b5132 1169
252b5132
RH
1170/* Map BFD reloc types to M32R ELF reloc types. */
1171
1172struct m32r_reloc_map
1173{
1174 bfd_reloc_code_real_type bfd_reloc_val;
1175 unsigned char elf_reloc_val;
1176};
1177
d5b2f13b 1178#ifdef USE_M32R_OLD_RELOC
6edf0760 1179static const struct m32r_reloc_map m32r_reloc_map_old[] =
252b5132
RH
1180{
1181 { BFD_RELOC_NONE, R_M32R_NONE },
1182 { BFD_RELOC_16, R_M32R_16 },
1183 { BFD_RELOC_32, R_M32R_32 },
1184 { BFD_RELOC_M32R_24, R_M32R_24 },
1185 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1186 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1187 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1188 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1189 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1190 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1191 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1192 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1193 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1194};
d5b2f13b 1195#else
6edf0760
NC
1196static const struct m32r_reloc_map m32r_reloc_map[] =
1197{
1198 { BFD_RELOC_NONE, R_M32R_NONE },
1199 { BFD_RELOC_16, R_M32R_16_RELA },
1200 { BFD_RELOC_32, R_M32R_32_RELA },
1201 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1202 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1203 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1204 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1205 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1206 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1207 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1208 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1209 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1210 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
157e7bd1 1211 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
41978308 1212
6edf0760
NC
1213 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1214 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1215 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1216 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1217 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1218 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1219 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1220 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1221 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1222 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1223 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1224 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1225 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1226 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
097f809a
NC
1227 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1228 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1229 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
6edf0760 1230};
d5b2f13b 1231#endif
6edf0760 1232
252b5132 1233static reloc_howto_type *
47b0e7ad
NC
1234bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1235 bfd_reloc_code_real_type code)
252b5132
RH
1236{
1237 unsigned int i;
1238
6edf0760
NC
1239#ifdef USE_M32R_OLD_RELOC
1240 for (i = 0;
1241 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1242 i++)
47b0e7ad
NC
1243 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1244 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1245
6edf0760
NC
1246#else /* ! USE_M32R_OLD_RELOC */
1247
252b5132
RH
1248 for (i = 0;
1249 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1250 i++)
47b0e7ad
NC
1251 if (m32r_reloc_map[i].bfd_reloc_val == code)
1252 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
6edf0760 1253#endif
252b5132
RH
1254
1255 return NULL;
1256}
1257
157090f7
AM
1258static reloc_howto_type *
1259bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1260 const char *r_name)
1261{
1262 unsigned int i;
1263
1264 for (i = 0;
1265 i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1266 i++)
1267 if (m32r_elf_howto_table[i].name != NULL
1268 && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1269 return &m32r_elf_howto_table[i];
1270
1271 return NULL;
1272}
1273
252b5132
RH
1274/* Set the howto pointer for an M32R ELF reloc. */
1275
1276static void
47b0e7ad
NC
1277m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1278 arelent *cache_ptr,
1279 Elf_Internal_Rela *dst)
252b5132
RH
1280{
1281 unsigned int r_type;
1282
1283 r_type = ELF32_R_TYPE (dst->r_info);
f12123c0 1284 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY);
252b5132
RH
1285 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1286}
6edf0760
NC
1287
1288static void
47b0e7ad
NC
1289m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1290 arelent *cache_ptr,
1291 Elf_Internal_Rela *dst)
6edf0760
NC
1292{
1293 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1294 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1295 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1296 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1297}
1298
252b5132
RH
1299\f
1300/* Given a BFD section, try to locate the corresponding ELF section
1301 index. */
1302
47b0e7ad
NC
1303static bfd_boolean
1304_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1305 asection *sec,
1306 int *retval)
252b5132
RH
1307{
1308 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1309 {
1310 *retval = SHN_M32R_SCOMMON;
b34976b6 1311 return TRUE;
252b5132 1312 }
b34976b6 1313 return FALSE;
252b5132
RH
1314}
1315
1316/* M32R ELF uses two common sections. One is the usual one, and the other
1317 is for small objects. All the small objects are kept together, and then
1318 referenced via one register, which yields faster assembler code. It is
1319 up to the compiler to emit an instruction to load the register with
1320 _SDA_BASE. This is what we use for the small common section. This
1321 approach is copied from elf32-mips.c. */
1322static asection m32r_elf_scom_section;
1323static asymbol m32r_elf_scom_symbol;
1324static asymbol *m32r_elf_scom_symbol_ptr;
1325
1326/* Handle the special M32R section numbers that a symbol may use. */
1327
47b0e7ad
NC
1328static void
1329_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1330{
47b0e7ad 1331 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH
1332
1333 switch (elfsym->internal_elf_sym.st_shndx)
1334 {
1335 case SHN_M32R_SCOMMON:
1336 if (m32r_elf_scom_section.name == NULL)
1337 {
1338 /* Initialize the small common section. */
1339 m32r_elf_scom_section.name = ".scommon";
1340 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1341 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1342 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1343 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1344 m32r_elf_scom_symbol.name = ".scommon";
1345 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1346 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1347 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1348 }
1349 asym->section = &m32r_elf_scom_section;
1350 asym->value = elfsym->internal_elf_sym.st_size;
1351 break;
1352 }
1353}
1354
1355/* Hook called by the linker routine which adds symbols from an object
1356 file. We must handle the special M32R section numbers here.
1357 We also keep watching for whether we need to create the sdata special
1358 linker sections. */
1359
b34976b6 1360static bfd_boolean
47b0e7ad
NC
1361m32r_elf_add_symbol_hook (bfd *abfd,
1362 struct bfd_link_info *info,
1363 Elf_Internal_Sym *sym,
1364 const char **namep,
1365 flagword *flagsp ATTRIBUTE_UNUSED,
1366 asection **secp,
1367 bfd_vma *valp)
252b5132 1368{
1049f94e 1369 if (! info->relocatable
252b5132 1370 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1371 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1372 && is_elf_hash_table (info->hash))
252b5132
RH
1373 {
1374 /* This is simpler than using _bfd_elf_create_linker_section
1375 (our needs are simpler than ppc's needs). Also
1376 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1377 section already exists a new one is created that follows it which
1378 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1379 struct elf_link_hash_entry *h;
14a793b2 1380 struct bfd_link_hash_entry *bh;
252b5132
RH
1381 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1382
6edf0760 1383 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC
1384 if (s == NULL)
1385 {
1386 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1387 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1388
3496cb2a
L
1389 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1390 flags);
6edf0760
NC
1391 if (s == NULL)
1392 return FALSE;
6edf0760
NC
1393 bfd_set_section_alignment (abfd, s, 2);
1394 }
1395
1396 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1397 FALSE, FALSE, FALSE);
1398
1399 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1400 && !(_bfd_generic_link_add_one_symbol (info,
1401 abfd,
1402 "_SDA_BASE_",
1403 BSF_GLOBAL,
1404 s,
1405 (bfd_vma) 32768,
47b0e7ad 1406 NULL,
6edf0760
NC
1407 FALSE,
1408 get_elf_backend_data (abfd)->collect,
1409 &bh)))
1410 return FALSE;
1411 h = (struct elf_link_hash_entry *) bh;
1412 h->type = STT_OBJECT;
1413 }
1414
1415 switch (sym->st_shndx)
1416 {
1417 case SHN_M32R_SCOMMON:
1418 *secp = bfd_make_section_old_way (abfd, ".scommon");
1419 (*secp)->flags |= SEC_IS_COMMON;
1420 *valp = sym->st_size;
1421 break;
1422 }
1423
1424 return TRUE;
1425}
1426
1427/* We have to figure out the SDA_BASE value, so that we can adjust the
1428 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1429 BFD. If we can't find it, we're stuck. We cache it in the ELF
1430 target data. We don't need to adjust the symbol value for an
1431 external symbol if we are producing relocatable output. */
1432
1433static bfd_reloc_status_type
47b0e7ad
NC
1434m32r_elf_final_sda_base (bfd *output_bfd,
1435 struct bfd_link_info *info,
1436 const char **error_message,
1437 bfd_vma *psb)
6edf0760
NC
1438{
1439 if (elf_gp (output_bfd) == 0)
1440 {
1441 struct bfd_link_hash_entry *h;
1442
1443 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1444 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC
1445 elf_gp (output_bfd) = (h->u.def.value
1446 + h->u.def.section->output_section->vma
1447 + h->u.def.section->output_offset);
1448 else
1449 {
1450 /* Only get the error once. */
1451 *psb = elf_gp (output_bfd) = 4;
1452 *error_message =
1453 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1454 return bfd_reloc_dangerous;
1455 }
1456 }
1457 *psb = elf_gp (output_bfd);
1458 return bfd_reloc_ok;
1459}
1460\f
1461/* Return size of a PLT entry. */
1462#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1463
1464/* The m32r linker needs to keep track of the number of relocs that it
1465 decides to copy in check_relocs for each symbol. This is so that
1466 it can discard PC relative relocs if it doesn't need them when
1467 linking with -Bsymbolic. We store the information in a field
1468 extending the regular ELF linker hash table. */
1469
1470/* This structure keeps track of the number of PC relative relocs we
1471 have copied for a given symbol. */
1472
1473struct elf_m32r_pcrel_relocs_copied
1474{
1475 /* Next section. */
1476 struct elf_m32r_pcrel_relocs_copied *next;
1477 /* A section in dynobj. */
1478 asection *section;
1479 /* Number of relocs copied in this section. */
1480 bfd_size_type count;
1481};
1482
1483/* The sh linker needs to keep track of the number of relocs that it
1484 decides to copy as dynamic relocs in check_relocs for each symbol.
1485 This is so that it can later discard them if they are found to be
1486 unnecessary. We store the information in a field extending the
1487 regular ELF linker hash table. */
1488
1489struct elf_m32r_dyn_relocs
1490{
1491 struct elf_m32r_dyn_relocs *next;
1492
1493 /* The input section of the reloc. */
1494 asection *sec;
1495
1496 /* Total number of relocs copied for the input section. */
1497 bfd_size_type count;
1498
1499 /* Number of pc-relative relocs copied for the input section. */
1500 bfd_size_type pc_count;
1501};
1502
1503
1504/* m32r ELF linker hash entry. */
1505
1506struct elf_m32r_link_hash_entry
1507{
1508 struct elf_link_hash_entry root;
1509
1510 /* Track dynamic relocs copied for this symbol. */
1511 struct elf_m32r_dyn_relocs *dyn_relocs;
6edf0760
NC
1512};
1513
1514/* m32r ELF linker hash table. */
1515
1516struct elf_m32r_link_hash_table
1517{
1518 struct elf_link_hash_table root;
1519
1520 /* Short-cuts to get to dynamic linker sections. */
1521 asection *sgot;
1522 asection *sgotplt;
1523 asection *srelgot;
1524 asection *splt;
1525 asection *srelplt;
1526 asection *sdynbss;
1527 asection *srelbss;
1528
87d72d41
AM
1529 /* Small local sym cache. */
1530 struct sym_cache sym_cache;
6edf0760
NC
1531};
1532
1533/* Traverse an m32r ELF linker hash table. */
1534
1535#define m32r_elf_link_hash_traverse(table, func, info) \
1536 (elf_link_hash_traverse \
1537 (&(table)->root, \
47b0e7ad 1538 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC
1539 (info)))
1540
1541/* Get the m32r ELF linker hash table from a link_info structure. */
1542
1543
1544#define m32r_elf_hash_table(p) \
1545 ((struct elf_m32r_link_hash_table *) ((p)->hash))
1546
1547/* Create an entry in an m32r ELF linker hash table. */
6edf0760
NC
1548
1549static struct bfd_hash_entry *
47b0e7ad
NC
1550m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1551 struct bfd_hash_table *table,
1552 const char *string)
6edf0760
NC
1553{
1554 struct elf_m32r_link_hash_entry *ret =
1555 (struct elf_m32r_link_hash_entry *) entry;
41978308 1556
6edf0760
NC
1557 /* Allocate the structure if it has not already been allocated by a
1558 subclass. */
47b0e7ad
NC
1559 if (ret == NULL)
1560 ret = bfd_hash_allocate (table,
1561 sizeof (struct elf_m32r_link_hash_entry));
1562 if (ret == NULL)
1563 return NULL;
41978308 1564
6edf0760
NC
1565 /* Call the allocation method of the superclass. */
1566 ret = ((struct elf_m32r_link_hash_entry *)
1567 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1568 table, string));
47b0e7ad 1569 if (ret != NULL)
6edf0760
NC
1570 {
1571 struct elf_m32r_link_hash_entry *eh;
41978308 1572
6edf0760
NC
1573 eh = (struct elf_m32r_link_hash_entry *) ret;
1574 eh->dyn_relocs = NULL;
6edf0760 1575 }
41978308 1576
6edf0760
NC
1577 return (struct bfd_hash_entry *) ret;
1578}
1579
1580/* Create an m32r ELF linker hash table. */
6edf0760
NC
1581
1582static struct bfd_link_hash_table *
47b0e7ad 1583m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760
NC
1584{
1585 struct elf_m32r_link_hash_table *ret;
1586 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
41978308 1587
47b0e7ad
NC
1588 ret = bfd_malloc (amt);
1589 if (ret == NULL)
6edf0760 1590 return NULL;
41978308 1591
66eb6687
AM
1592 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1593 m32r_elf_link_hash_newfunc,
1594 sizeof (struct elf_m32r_link_hash_entry)))
6edf0760
NC
1595 {
1596 free (ret);
1597 return NULL;
1598 }
41978308 1599
6edf0760
NC
1600 ret->sgot = NULL;
1601 ret->sgotplt = NULL;
1602 ret->srelgot = NULL;
1603 ret->splt = NULL;
1604 ret->srelplt = NULL;
1605 ret->sdynbss = NULL;
1606 ret->srelbss = NULL;
87d72d41 1607 ret->sym_cache.abfd = NULL;
41978308 1608
6edf0760
NC
1609 return &ret->root.root;
1610}
1611
1612/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1613 shortcuts to them in our hash table. */
6edf0760
NC
1614
1615static bfd_boolean
47b0e7ad 1616create_got_section (bfd *dynobj, struct bfd_link_info *info)
6edf0760
NC
1617{
1618 struct elf_m32r_link_hash_table *htab;
1619
1620 if (! _bfd_elf_create_got_section (dynobj, info))
1621 return FALSE;
1622
1623 htab = m32r_elf_hash_table (info);
1624 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1625 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
64e77c6d
L
1626 htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1627 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
6edf0760
NC
1628 abort ();
1629
6edf0760
NC
1630 return TRUE;
1631}
1632
1633/* Create dynamic sections when linking against a dynamic object. */
1634
1635static bfd_boolean
47b0e7ad 1636m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760
NC
1637{
1638 struct elf_m32r_link_hash_table *htab;
1639 flagword flags, pltflags;
47b0e7ad 1640 asection *s;
6edf0760
NC
1641 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1642 int ptralign = 2; /* 32bit */
1643
1644 htab = m32r_elf_hash_table (info);
1645
1646 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1647 .rel[a].bss sections. */
6edf0760
NC
1648 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1649 | SEC_LINKER_CREATED);
1650
1651 pltflags = flags;
1652 pltflags |= SEC_CODE;
1653 if (bed->plt_not_loaded)
1654 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1655 if (bed->plt_readonly)
1656 pltflags |= SEC_READONLY;
1657
3496cb2a 1658 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
6edf0760
NC
1659 htab->splt = s;
1660 if (s == NULL
6edf0760
NC
1661 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1662 return FALSE;
1663
1664 if (bed->want_plt_sym)
1665 {
1666 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1667 .plt section. */
41978308
AM
1668 struct bfd_link_hash_entry *bh = NULL;
1669 struct elf_link_hash_entry *h;
47b0e7ad 1670
6edf0760
NC
1671 if (! (_bfd_generic_link_add_one_symbol
1672 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
47b0e7ad 1673 (bfd_vma) 0, NULL, FALSE,
41978308 1674 get_elf_backend_data (abfd)->collect, &bh)))
6edf0760 1675 return FALSE;
41978308 1676 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1677 h->def_regular = 1;
6edf0760 1678 h->type = STT_OBJECT;
7325306f 1679 htab->root.hplt = h;
6edf0760
NC
1680
1681 if (info->shared
c152c796 1682 && ! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
1683 return FALSE;
1684 }
1685
3496cb2a
L
1686 s = bfd_make_section_with_flags (abfd,
1687 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
1688 flags | SEC_READONLY);
6edf0760
NC
1689 htab->srelplt = s;
1690 if (s == NULL
6edf0760
NC
1691 || ! bfd_set_section_alignment (abfd, s, ptralign))
1692 return FALSE;
1693
1694 if (htab->sgot == NULL
1695 && ! create_got_section (abfd, info))
1696 return FALSE;
1697
1698 {
1699 const char *secname;
1700 char *relname;
1701 flagword secflags;
1702 asection *sec;
1703
1704 for (sec = abfd->sections; sec; sec = sec->next)
1705 {
1706 secflags = bfd_get_section_flags (abfd, sec);
1707 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
1708 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
1709 continue;
1710 secname = bfd_get_section_name (abfd, sec);
47b0e7ad 1711 relname = bfd_malloc ((bfd_size_type) strlen (secname) + 6);
6edf0760
NC
1712 strcpy (relname, ".rela");
1713 strcat (relname, secname);
1714 if (bfd_get_section_by_name (abfd, secname))
1715 continue;
3496cb2a
L
1716 s = bfd_make_section_with_flags (abfd, relname,
1717 flags | SEC_READONLY);
6edf0760 1718 if (s == NULL
6edf0760
NC
1719 || ! bfd_set_section_alignment (abfd, s, ptralign))
1720 return FALSE;
1721 }
1722 }
1723
1724 if (bed->want_dynbss)
1725 {
1726 /* The .dynbss section is a place to put symbols which are defined
1727 by dynamic objects, are referenced by regular objects, and are
1728 not functions. We must allocate space for them in the process
1729 image and use a R_*_COPY reloc to tell the dynamic linker to
1730 initialize them at run time. The linker script puts the .dynbss
1731 section into the .bss section of the final image. */
3496cb2a
L
1732 s = bfd_make_section_with_flags (abfd, ".dynbss",
1733 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1734 htab->sdynbss = s;
3496cb2a 1735 if (s == NULL)
6edf0760
NC
1736 return FALSE;
1737 /* The .rel[a].bss section holds copy relocs. This section is not
1738 normally needed. We need to create it here, though, so that the
1739 linker will map it to an output section. We can't just create it
1740 only if we need it, because we will not know whether we need it
1741 until we have seen all the input files, and the first time the
1742 main linker code calls BFD after examining all the input files
1743 (size_dynamic_sections) the input sections have already been
1744 mapped to the output sections. If the section turns out not to
1745 be needed, we can discard it later. We will never need this
1746 section when generating a shared object, since they do not use
1747 copy relocs. */
1748 if (! info->shared)
1749 {
3496cb2a
L
1750 s = bfd_make_section_with_flags (abfd,
1751 (bed->default_use_rela_p
1752 ? ".rela.bss" : ".rel.bss"),
1753 flags | SEC_READONLY);
6edf0760
NC
1754 htab->srelbss = s;
1755 if (s == NULL
6edf0760
NC
1756 || ! bfd_set_section_alignment (abfd, s, ptralign))
1757 return FALSE;
1758 }
1759 }
1760
1761 return TRUE;
1762}
1763
1764/* Copy the extra info we tack onto an elf_link_hash_entry. */
41978308 1765
6edf0760 1766static void
fcfa13d2 1767m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
6edf0760
NC
1768 struct elf_link_hash_entry *dir,
1769 struct elf_link_hash_entry *ind)
1770{
47b0e7ad
NC
1771 struct elf_m32r_link_hash_entry * edir;
1772 struct elf_m32r_link_hash_entry * eind;
41978308 1773
6edf0760
NC
1774 edir = (struct elf_m32r_link_hash_entry *) dir;
1775 eind = (struct elf_m32r_link_hash_entry *) ind;
41978308 1776
6edf0760
NC
1777 if (eind->dyn_relocs != NULL)
1778 {
1779 if (edir->dyn_relocs != NULL)
1780 {
1781 struct elf_m32r_dyn_relocs **pp;
1782 struct elf_m32r_dyn_relocs *p;
41978308 1783
fcfa13d2 1784 /* Add reloc counts against the indirect sym to the direct sym
6edf0760 1785 list. Merge any entries against the same section. */
47b0e7ad 1786 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
1787 {
1788 struct elf_m32r_dyn_relocs *q;
41978308 1789
6edf0760
NC
1790 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1791 if (q->sec == p->sec)
1792 {
1793 q->pc_count += p->pc_count;
1794 q->count += p->count;
1795 *pp = p->next;
1796 break;
1797 }
1798 if (q == NULL)
1799 pp = &p->next;
1800 }
1801 *pp = edir->dyn_relocs;
1802 }
41978308 1803
6edf0760
NC
1804 edir->dyn_relocs = eind->dyn_relocs;
1805 eind->dyn_relocs = NULL;
1806 }
41978308 1807
fcfa13d2 1808 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
6edf0760
NC
1809}
1810
1811\f
1812/* Adjust a symbol defined by a dynamic object and referenced by a
1813 regular object. The current definition is in some section of the
1814 dynamic object, but we're not including those sections. We have to
1815 change the definition to something the rest of the link can
1816 understand. */
41978308 1817
6edf0760 1818static bfd_boolean
47b0e7ad
NC
1819m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1820 struct elf_link_hash_entry *h)
6edf0760
NC
1821{
1822 struct elf_m32r_link_hash_table *htab;
1823 struct elf_m32r_link_hash_entry *eh;
1824 struct elf_m32r_dyn_relocs *p;
1825 bfd *dynobj;
1826 asection *s;
6edf0760
NC
1827
1828#ifdef DEBUG_PIC
47b0e7ad 1829 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1830#endif
41978308 1831
6edf0760 1832 dynobj = elf_hash_table (info)->dynobj;
41978308 1833
6edf0760
NC
1834 /* Make sure we know what is going on here. */
1835 BFD_ASSERT (dynobj != NULL
f5385ebf 1836 && (h->needs_plt
f6e332e6 1837 || h->u.weakdef != NULL
f5385ebf
AM
1838 || (h->def_dynamic
1839 && h->ref_regular
1840 && !h->def_regular)));
6edf0760 1841
6edf0760
NC
1842 /* If this is a function, put it in the procedure linkage table. We
1843 will fill in the contents of the procedure linkage table later,
1844 when we know the address of the .got section. */
1845 if (h->type == STT_FUNC
f5385ebf 1846 || h->needs_plt)
6edf0760
NC
1847 {
1848 if (! info->shared
f5385ebf
AM
1849 && !h->def_dynamic
1850 && !h->ref_dynamic
6edf0760
NC
1851 && h->root.type != bfd_link_hash_undefweak
1852 && h->root.type != bfd_link_hash_undefined)
1853 {
1854 /* This case can occur if we saw a PLT reloc in an input
1855 file, but the symbol was never referred to by a dynamic
1856 object. In such a case, we don't actually need to build
1857 a procedure linkage table, and we can just do a PCREL
1858 reloc instead. */
1859 h->plt.offset = (bfd_vma) -1;
f5385ebf 1860 h->needs_plt = 0;
6edf0760
NC
1861 }
1862
1863 return TRUE;
1864 }
1865 else
1866 h->plt.offset = (bfd_vma) -1;
41978308 1867
6edf0760
NC
1868 /* If this is a weak symbol, and there is a real definition, the
1869 processor independent code will have arranged for us to see the
1870 real definition first, and we can just use the same value. */
f6e332e6 1871 if (h->u.weakdef != NULL)
6edf0760 1872 {
f6e332e6
AM
1873 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1874 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1875 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1876 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6edf0760
NC
1877 return TRUE;
1878 }
41978308 1879
6edf0760
NC
1880 /* This is a reference to a symbol defined by a dynamic object which
1881 is not a function. */
41978308 1882
6edf0760
NC
1883 /* If we are creating a shared library, we must presume that the
1884 only references to the symbol are via the global offset table.
1885 For such cases we need not do anything here; the relocations will
1886 be handled correctly by relocate_section. */
1887 if (info->shared)
1888 return TRUE;
41978308 1889
6edf0760
NC
1890 /* If there are no references to this symbol that do not use the
1891 GOT, we don't need to generate a copy reloc. */
f5385ebf 1892 if (!h->non_got_ref)
6edf0760
NC
1893 return TRUE;
1894
1895 /* If -z nocopyreloc was given, we won't generate them either. */
1896 if (info->nocopyreloc)
1897 {
f5385ebf 1898 h->non_got_ref = 0;
6edf0760
NC
1899 return TRUE;
1900 }
1901
1902 eh = (struct elf_m32r_link_hash_entry *) h;
1903 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1904 {
1905 s = p->sec->output_section;
1906 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1907 break;
1908 }
1909
1910 /* If we didn't find any dynamic relocs in sections which needs the
1911 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1912 the copy reloc. */
1913 if (p == NULL)
1914 {
f5385ebf 1915 h->non_got_ref = 0;
6edf0760
NC
1916 return TRUE;
1917 }
1918
909272ee
AM
1919 if (h->size == 0)
1920 {
1921 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1922 h->root.root.string);
1923 return TRUE;
1924 }
1925
6edf0760
NC
1926 /* We must allocate the symbol in our .dynbss section, which will
1927 become part of the .bss section of the executable. There will be
1928 an entry for this symbol in the .dynsym section. The dynamic
1929 object will contain position independent code, so all references
1930 from the dynamic object to this symbol will go through the global
1931 offset table. The dynamic linker will use the .dynsym entry to
1932 determine the address it must put in the global offset table, so
1933 both the dynamic object and the regular object will refer to the
1934 same memory location for the variable. */
41978308 1935
6edf0760
NC
1936 htab = m32r_elf_hash_table (info);
1937 s = htab->sdynbss;
1938 BFD_ASSERT (s != NULL);
41978308 1939
6edf0760
NC
1940 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1941 to copy the initial value out of the dynamic object and into the
1942 runtime process image. We need to remember the offset into the
1943 .rela.bss section we are going to use. */
1944 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1945 {
1946 asection *srel;
41978308 1947
6edf0760
NC
1948 srel = htab->srelbss;
1949 BFD_ASSERT (srel != NULL);
eea6121a 1950 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1951 h->needs_copy = 1;
6edf0760 1952 }
41978308 1953
027297b7 1954 return _bfd_elf_adjust_dynamic_copy (h, s);
6edf0760
NC
1955}
1956
6edf0760
NC
1957/* Allocate space in .plt, .got and associated reloc sections for
1958 dynamic relocs. */
41978308 1959
6edf0760 1960static bfd_boolean
47b0e7ad 1961allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC
1962{
1963 struct bfd_link_info *info;
1964 struct elf_m32r_link_hash_table *htab;
1965 struct elf_m32r_link_hash_entry *eh;
1966 struct elf_m32r_dyn_relocs *p;
41978308 1967
6edf0760
NC
1968 if (h->root.type == bfd_link_hash_indirect)
1969 return TRUE;
41978308 1970
6edf0760
NC
1971 if (h->root.type == bfd_link_hash_warning)
1972 /* When warning symbols are created, they **replace** the "real"
1973 entry in the hash table, thus we never get to see the real
1974 symbol in a hash traversal. So look at it now. */
1975 h = (struct elf_link_hash_entry *) h->root.u.i.link;
41978308 1976
6edf0760
NC
1977 info = (struct bfd_link_info *) inf;
1978 htab = m32r_elf_hash_table (info);
41978308 1979
6edf0760 1980 eh = (struct elf_m32r_link_hash_entry *) h;
41978308 1981
6edf0760
NC
1982 if (htab->root.dynamic_sections_created
1983 && h->plt.refcount > 0)
1984 {
1985 /* Make sure this symbol is output as a dynamic symbol.
1986 Undefined weak syms won't yet be marked as dynamic. */
1987 if (h->dynindx == -1
f5385ebf 1988 && !h->forced_local)
6edf0760 1989 {
c152c796 1990 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
1991 return FALSE;
1992 }
41978308 1993
c152c796 1994 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
6edf0760
NC
1995 {
1996 asection *s = htab->splt;
41978308 1997
6edf0760
NC
1998 /* If this is the first .plt entry, make room for the special
1999 first entry. */
eea6121a
AM
2000 if (s->size == 0)
2001 s->size += PLT_ENTRY_SIZE;
41978308 2002
eea6121a 2003 h->plt.offset = s->size;
41978308 2004
6edf0760
NC
2005 /* If this symbol is not defined in a regular file, and we are
2006 not generating a shared library, then set the symbol to this
2007 location in the .plt. This is required to make function
2008 pointers compare as equal between the normal executable and
2009 the shared library. */
2010 if (! info->shared
f5385ebf 2011 && !h->def_regular)
6edf0760
NC
2012 {
2013 h->root.u.def.section = s;
2014 h->root.u.def.value = h->plt.offset;
2015 }
41978308 2016
6edf0760 2017 /* Make room for this entry. */
eea6121a 2018 s->size += PLT_ENTRY_SIZE;
41978308 2019
6edf0760
NC
2020 /* We also need to make an entry in the .got.plt section, which
2021 will be placed in the .got section by the linker script. */
eea6121a 2022 htab->sgotplt->size += 4;
41978308 2023
6edf0760 2024 /* We also need to make an entry in the .rel.plt section. */
eea6121a 2025 htab->srelplt->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2026 }
2027 else
2028 {
2029 h->plt.offset = (bfd_vma) -1;
f5385ebf 2030 h->needs_plt = 0;
6edf0760
NC
2031 }
2032 }
2033 else
2034 {
2035 h->plt.offset = (bfd_vma) -1;
f5385ebf 2036 h->needs_plt = 0;
6edf0760 2037 }
41978308 2038
6edf0760
NC
2039 if (h->got.refcount > 0)
2040 {
2041 asection *s;
2042 bfd_boolean dyn;
41978308 2043
6edf0760
NC
2044 /* Make sure this symbol is output as a dynamic symbol.
2045 Undefined weak syms won't yet be marked as dynamic. */
2046 if (h->dynindx == -1
f5385ebf 2047 && !h->forced_local)
6edf0760 2048 {
c152c796 2049 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2050 return FALSE;
2051 }
41978308 2052
6edf0760
NC
2053 s = htab->sgot;
2054
eea6121a
AM
2055 h->got.offset = s->size;
2056 s->size += 4;
6edf0760 2057 dyn = htab->root.dynamic_sections_created;
c152c796 2058 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
eea6121a 2059 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2060 }
2061 else
2062 h->got.offset = (bfd_vma) -1;
41978308 2063
6edf0760
NC
2064 if (eh->dyn_relocs == NULL)
2065 return TRUE;
41978308 2066
6edf0760
NC
2067 /* In the shared -Bsymbolic case, discard space allocated for
2068 dynamic pc-relative relocs against symbols which turn out to be
2069 defined in regular objects. For the normal shared case, discard
2070 space for pc-relative relocs that have become local due to symbol
2071 visibility changes. */
2072
2073 if (info->shared)
2074 {
f5385ebf
AM
2075 if (h->def_regular
2076 && (h->forced_local
6edf0760
NC
2077 || info->symbolic))
2078 {
2079 struct elf_m32r_dyn_relocs **pp;
47b0e7ad
NC
2080
2081 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC
2082 {
2083 p->count -= p->pc_count;
2084 p->pc_count = 0;
2085 if (p->count == 0)
2086 *pp = p->next;
2087 else
2088 pp = &p->next;
2089 }
2090 }
22d606e9
AM
2091
2092 /* Also discard relocs on undefined weak syms with non-default
2093 visibility. */
2094 if (eh->dyn_relocs != NULL
2095 && h->root.type == bfd_link_hash_undefweak)
2096 {
2097 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2098 eh->dyn_relocs = NULL;
2099
2100 /* Make sure undefined weak symbols are output as a dynamic
2101 symbol in PIEs. */
2102 else if (h->dynindx == -1
2103 && !h->forced_local)
2104 {
2105 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2106 return FALSE;
2107 }
2108 }
6edf0760
NC
2109 }
2110 else
2111 {
2112 /* For the non-shared case, discard space for relocs against
2113 symbols which turn out to need copy relocs or are not
2114 dynamic. */
41978308 2115
f5385ebf
AM
2116 if (!h->non_got_ref
2117 && ((h->def_dynamic
2118 && !h->def_regular)
6edf0760
NC
2119 || (htab->root.dynamic_sections_created
2120 && (h->root.type == bfd_link_hash_undefweak
2121 || h->root.type == bfd_link_hash_undefined))))
2122 {
2123 /* Make sure this symbol is output as a dynamic symbol.
2124 Undefined weak syms won't yet be marked as dynamic. */
2125 if (h->dynindx == -1
f5385ebf 2126 && !h->forced_local)
6edf0760 2127 {
c152c796 2128 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC
2129 return FALSE;
2130 }
41978308 2131
6edf0760
NC
2132 /* If that succeeded, we know we'll be keeping all the
2133 relocs. */
2134 if (h->dynindx != -1)
2135 goto keep;
2136 }
41978308 2137
6edf0760 2138 eh->dyn_relocs = NULL;
41978308 2139
6edf0760
NC
2140 keep: ;
2141 }
41978308 2142
6edf0760
NC
2143 /* Finally, allocate space. */
2144 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2145 {
2146 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2147 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 2148 }
41978308 2149
6edf0760
NC
2150 return TRUE;
2151}
47b0e7ad 2152
6edf0760 2153/* Find any dynamic relocs that apply to read-only sections. */
41978308 2154
6edf0760 2155static bfd_boolean
47b0e7ad 2156readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC
2157{
2158 struct elf_m32r_link_hash_entry *eh;
2159 struct elf_m32r_dyn_relocs *p;
2160
2161 if (h->root.type == bfd_link_hash_warning)
2162 h = (struct elf_link_hash_entry *) h->root.u.i.link;
252b5132 2163
6edf0760
NC
2164 eh = (struct elf_m32r_link_hash_entry *) h;
2165 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2166 {
2167 asection *s = p->sec->output_section;
252b5132 2168
6edf0760
NC
2169 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2170 {
2171 struct bfd_link_info *info = (struct bfd_link_info *) inf;
252b5132 2172
6edf0760 2173 info->flags |= DF_TEXTREL;
252b5132 2174
6edf0760
NC
2175 /* Not an error, just cut short the traversal. */
2176 return FALSE;
2177 }
252b5132 2178 }
6edf0760
NC
2179 return TRUE;
2180}
252b5132 2181
6edf0760 2182/* Set the sizes of the dynamic sections. */
41978308 2183
6edf0760 2184static bfd_boolean
47b0e7ad
NC
2185m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2186 struct bfd_link_info *info)
6edf0760
NC
2187{
2188 struct elf_m32r_link_hash_table *htab;
2189 bfd *dynobj;
2190 asection *s;
2191 bfd_boolean relocs;
2192 bfd *ibfd;
2193
2194#ifdef DEBUG_PIC
47b0e7ad 2195 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC
2196#endif
2197
2198 htab = m32r_elf_hash_table (info);
2199 dynobj = htab->root.dynobj;
2200 BFD_ASSERT (dynobj != NULL);
2201
2202 if (htab->root.dynamic_sections_created)
252b5132 2203 {
6edf0760 2204 /* Set the contents of the .interp section to the interpreter. */
80447b21 2205 if (info->executable)
6edf0760
NC
2206 {
2207 s = bfd_get_section_by_name (dynobj, ".interp");
2208 BFD_ASSERT (s != NULL);
eea6121a 2209 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC
2210 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2211 }
252b5132
RH
2212 }
2213
6edf0760
NC
2214 /* Set up .got offsets for local syms, and space for local dynamic
2215 relocs. */
2216 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2217 {
2218 bfd_signed_vma *local_got;
2219 bfd_signed_vma *end_local_got;
2220 bfd_size_type locsymcount;
2221 Elf_Internal_Shdr *symtab_hdr;
2222 asection *srel;
252b5132 2223
6edf0760
NC
2224 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2225 continue;
252b5132 2226
6edf0760
NC
2227 for (s = ibfd->sections; s != NULL; s = s->next)
2228 {
2229 struct elf_m32r_dyn_relocs *p;
2230
2231 for (p = ((struct elf_m32r_dyn_relocs *)
2232 elf_section_data (s)->local_dynrel);
2233 p != NULL;
2234 p = p->next)
2235 {
2236 if (! bfd_is_abs_section (p->sec)
2237 && bfd_is_abs_section (p->sec->output_section))
2238 {
2239 /* Input section has been discarded, either because
2240 it is a copy of a linkonce section or due to
2241 linker script /DISCARD/, so we'll be discarding
2242 the relocs too. */
2243 }
2244 else if (p->count != 0)
2245 {
2246 srel = elf_section_data (p->sec)->sreloc;
eea6121a 2247 srel->size += p->count * sizeof (Elf32_External_Rela);
6edf0760
NC
2248 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2249 info->flags |= DF_TEXTREL;
2250 }
2251 }
2252 }
2253
2254 local_got = elf_local_got_refcounts (ibfd);
2255 if (!local_got)
2256 continue;
2257
2258 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2259 locsymcount = symtab_hdr->sh_info;
2260 end_local_got = local_got + locsymcount;
2261 s = htab->sgot;
2262 srel = htab->srelgot;
2263 for (; local_got < end_local_got; ++local_got)
2264 {
2265 if (*local_got > 0)
2266 {
eea6121a
AM
2267 *local_got = s->size;
2268 s->size += 4;
6edf0760 2269 if (info->shared)
eea6121a 2270 srel->size += sizeof (Elf32_External_Rela);
6edf0760
NC
2271 }
2272 else
2273 *local_got = (bfd_vma) -1;
2274 }
2275 }
2276
2277 /* Allocate global sym .plt and .got entries, and space for global
2278 sym dynamic relocs. */
47b0e7ad 2279 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC
2280
2281 /* We now have determined the sizes of the various dynamic sections.
2282 Allocate memory for them. */
2283 relocs = FALSE;
2284 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2285 {
6edf0760
NC
2286 if ((s->flags & SEC_LINKER_CREATED) == 0)
2287 continue;
252b5132 2288
6edf0760
NC
2289 if (s == htab->splt
2290 || s == htab->sgot
c456f082
AM
2291 || s == htab->sgotplt
2292 || s == htab->sdynbss)
6edf0760
NC
2293 {
2294 /* Strip this section if we don't need it; see the
2295 comment below. */
2296 }
0112cd26 2297 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
6edf0760 2298 {
eea6121a 2299 if (s->size != 0 && s != htab->srelplt)
6edf0760
NC
2300 relocs = TRUE;
2301
2302 /* We use the reloc_count field as a counter if we need
2303 to copy relocs into the output file. */
2304 s->reloc_count = 0;
2305 }
252b5132 2306 else
47b0e7ad
NC
2307 /* It's not one of our sections, so don't allocate space. */
2308 continue;
6edf0760 2309
eea6121a 2310 if (s->size == 0)
6edf0760
NC
2311 {
2312 /* If we don't need this section, strip it from the
2313 output file. This is mostly to handle .rela.bss and
2314 .rela.plt. We must create both sections in
2315 create_dynamic_sections, because they must be created
2316 before the linker maps input sections to output
2317 sections. The linker does that before
2318 adjust_dynamic_symbol is called, and it is that
2319 function which decides whether anything needs to go
2320 into these sections. */
8423293d 2321 s->flags |= SEC_EXCLUDE;
6edf0760
NC
2322 continue;
2323 }
2324
c456f082
AM
2325 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2326 continue;
2327
6edf0760
NC
2328 /* Allocate memory for the section contents. We use bfd_zalloc
2329 here in case unused entries are not reclaimed before the
2330 section's contents are written out. This should not happen,
2331 but this way if it does, we get a R_M32R_NONE reloc instead
2332 of garbage. */
47b0e7ad 2333 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760
NC
2334 if (s->contents == NULL)
2335 return FALSE;
2336 }
2337
2338 if (htab->root.dynamic_sections_created)
2339 {
2340 /* Add some entries to the .dynamic section. We fill in the
2341 values later, in m32r_elf_finish_dynamic_sections, but we
2342 must add the entries now so that we get the correct size for
2343 the .dynamic section. The DT_DEBUG entry is filled in by the
2344 dynamic linker and used by the debugger. */
2345#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2346 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6edf0760 2347
80447b21 2348 if (info->executable)
252b5132 2349 {
6edf0760
NC
2350 if (! add_dynamic_entry (DT_DEBUG, 0))
2351 return FALSE;
252b5132 2352 }
6edf0760 2353
eea6121a 2354 if (htab->splt->size != 0)
6edf0760
NC
2355 {
2356 if (! add_dynamic_entry (DT_PLTGOT, 0)
2357 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2358 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2359 || ! add_dynamic_entry (DT_JMPREL, 0))
2360 return FALSE;
2361 }
2362
2363 if (relocs)
2364 {
2365 if (! add_dynamic_entry (DT_RELA, 0)
2366 || ! add_dynamic_entry (DT_RELASZ, 0)
2367 || ! add_dynamic_entry (DT_RELAENT,
2368 sizeof (Elf32_External_Rela)))
2369 return FALSE;
2370
2371 /* If any dynamic relocs apply to a read-only section,
2372 then we need a DT_TEXTREL entry. */
2373 if ((info->flags & DF_TEXTREL) == 0)
2374 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
47b0e7ad 2375 info);
6edf0760
NC
2376
2377 if ((info->flags & DF_TEXTREL) != 0)
2378 {
2379 if (! add_dynamic_entry (DT_TEXTREL, 0))
2380 return FALSE;
2381 }
2382 }
252b5132 2383 }
6edf0760
NC
2384#undef add_dynamic_entry
2385
2386 return TRUE;
252b5132 2387}
47b0e7ad 2388
252b5132
RH
2389/* Relocate an M32R/D ELF section.
2390 There is some attempt to make this function usable for many architectures,
f0fe0e16 2391 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH
2392
2393 The RELOCATE_SECTION function is called by the new ELF backend linker
2394 to handle the relocations for a section.
2395
2396 The relocs are always passed as Rela structures; if the section
2397 actually uses Rel structures, the r_addend field will always be
2398 zero.
2399
2400 This function is responsible for adjust the section contents as
2401 necessary, and (if using Rela relocs and generating a
1049f94e 2402 relocatable output file) adjusting the reloc addend as
252b5132
RH
2403 necessary.
2404
2405 This function does not have to worry about setting the reloc
2406 address or the reloc symbol index.
2407
2408 LOCAL_SYMS is a pointer to the swapped in local symbols.
2409
2410 LOCAL_SECTIONS is an array giving the section in the input file
2411 corresponding to the st_shndx field of each local symbol.
2412
2413 The global hash table entry for the global symbols can be found
2414 via elf_sym_hashes (input_bfd).
2415
1049f94e 2416 When generating relocatable output, this function must handle
252b5132
RH
2417 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2418 going to be the section symbol corresponding to the output
2419 section, which means that the addend must be adjusted
2420 accordingly. */
2421
b34976b6 2422static bfd_boolean
47b0e7ad
NC
2423m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2424 struct bfd_link_info *info,
2425 bfd *input_bfd,
2426 asection *input_section,
2427 bfd_byte *contents,
2428 Elf_Internal_Rela *relocs,
2429 Elf_Internal_Sym *local_syms,
2430 asection **local_sections)
252b5132
RH
2431{
2432 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2433 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2434 Elf_Internal_Rela *rel, *relend;
2435 /* Assume success. */
b34976b6 2436 bfd_boolean ret = TRUE;
252b5132 2437
6edf0760
NC
2438 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2439 bfd *dynobj;
2440 bfd_vma *local_got_offsets;
2441 asection *sgot, *splt, *sreloc;
07515404 2442 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760
NC
2443
2444 dynobj = htab->root.dynobj;
2445 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2446
6edf0760
NC
2447 sgot = htab->sgot;
2448 splt = htab->splt;
2449 sreloc = NULL;
b491616a 2450
252b5132
RH
2451 rel = relocs;
2452 relend = relocs + input_section->reloc_count;
2453 for (; rel < relend; rel++)
2454 {
2455 int r_type;
2456 reloc_howto_type *howto;
2457 unsigned long r_symndx;
6edf0760 2458 struct elf_link_hash_entry *h;
252b5132 2459 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
6edf0760
NC
2460 ensure it's zero (we use REL relocs, not RELA). Therefore this
2461 should be assigning zero to `addend', but for clarity we use
2462 `r_addend'. */
252b5132
RH
2463 bfd_vma addend = rel->r_addend;
2464 bfd_vma offset = rel->r_offset;
ab96bf03 2465 bfd_vma relocation;
252b5132
RH
2466 Elf_Internal_Sym *sym;
2467 asection *sec;
2468 const char *sym_name;
2469 bfd_reloc_status_type r;
2470 const char *errmsg = NULL;
6edf0760 2471 bfd_boolean use_rel = FALSE;
252b5132
RH
2472
2473 h = NULL;
2474 r_type = ELF32_R_TYPE (rel->r_info);
2475 if (r_type < 0 || r_type >= (int) R_M32R_max)
2476 {
d003868e
AM
2477 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2478 input_bfd,
252b5132
RH
2479 (int) r_type);
2480 bfd_set_error (bfd_error_bad_value);
b34976b6 2481 ret = FALSE;
252b5132
RH
2482 continue;
2483 }
2484
47b0e7ad 2485 if ( r_type == R_M32R_GNU_VTENTRY
6edf0760
NC
2486 || r_type == R_M32R_GNU_VTINHERIT
2487 || r_type == R_M32R_NONE
2488 || r_type == R_M32R_RELA_GNU_VTENTRY
2489 || r_type == R_M32R_RELA_GNU_VTINHERIT)
252b5132
RH
2490 continue;
2491
6edf0760
NC
2492 if (r_type <= R_M32R_GNU_VTENTRY)
2493 use_rel = TRUE;
2494
252b5132
RH
2495 howto = m32r_elf_howto_table + r_type;
2496 r_symndx = ELF32_R_SYM (rel->r_info);
2497
ab96bf03
AM
2498 sym = NULL;
2499 sec = NULL;
2500 h = NULL;
2501
2502 if (r_symndx < symtab_hdr->sh_info)
2503 {
2504 /* Local symbol. */
2505 sym = local_syms + r_symndx;
2506 sec = local_sections[r_symndx];
2507 sym_name = "<local symbol>";
2508
2509 if (!use_rel)
2510 {
2511 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2512 addend = rel->r_addend;
2513 }
2514 else
2515 {
2516 relocation = (sec->output_section->vma
2517 + sec->output_offset
2518 + sym->st_value);
2519 }
2520 }
2521 else
2522 {
2523 /* External symbol. */
2524 relocation = 0;
2525
2526 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2527 while (h->root.type == bfd_link_hash_indirect
2528 || h->root.type == bfd_link_hash_warning)
2529 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2530 sym_name = h->root.root.string;
2531
2532 if (h->root.type == bfd_link_hash_defined
2533 || h->root.type == bfd_link_hash_defweak)
2534 {
2535 bfd_boolean dyn;
2536 sec = h->root.u.def.section;
2537
2538 dyn = htab->root.dynamic_sections_created;
2539 sec = h->root.u.def.section;
2540 if (r_type == R_M32R_GOTPC24
2541 || (r_type == R_M32R_GOTPC_HI_ULO
2542 || r_type == R_M32R_GOTPC_HI_SLO
2543 || r_type == R_M32R_GOTPC_LO)
2544 || (r_type == R_M32R_26_PLTREL
2545 && h->plt.offset != (bfd_vma) -1)
2546 || ((r_type == R_M32R_GOT24
2547 || r_type == R_M32R_GOT16_HI_ULO
2548 || r_type == R_M32R_GOT16_HI_SLO
2549 || r_type == R_M32R_GOT16_LO)
2550 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2551 info->shared, h)
2552 && (! info->shared
2553 || (! info->symbolic && h->dynindx != -1)
2554 || !h->def_regular))
2555 || (info->shared
2556 && ((! info->symbolic && h->dynindx != -1)
2557 || !h->def_regular)
2558 && (((r_type == R_M32R_16_RELA
2559 || r_type == R_M32R_32_RELA
2560 || r_type == R_M32R_24_RELA
2561 || r_type == R_M32R_HI16_ULO_RELA
2562 || r_type == R_M32R_HI16_SLO_RELA
2563 || r_type == R_M32R_LO16_RELA)
2564 && !h->forced_local)
2565 || r_type == R_M32R_REL32
2566 || r_type == R_M32R_10_PCREL_RELA
2567 || r_type == R_M32R_18_PCREL_RELA
2568 || r_type == R_M32R_26_PCREL_RELA)
2569 && ((input_section->flags & SEC_ALLOC) != 0
2570 /* DWARF will emit R_M32R_16(24,32) relocations
2571 in its sections against symbols defined
2572 externally in shared libraries. We can't do
2573 anything with them here. */
2574 || ((input_section->flags & SEC_DEBUGGING) != 0
2575 && h->def_dynamic))))
2576 {
2577 /* In these cases, we don't need the relocation
2578 value. We check specially because in some
2579 obscure cases sec->output_section will be NULL. */
2580 }
2581 else if (sec->output_section != NULL)
2582 relocation = (h->root.u.def.value
2583 + sec->output_section->vma
2584 + sec->output_offset);
2585 else if (!info->relocatable)
2586 {
2587 (*_bfd_error_handler)
2588 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2589 input_bfd,
2590 input_section,
2591 (long) rel->r_offset,
2592 howto->name,
2593 h->root.root.string);
2594 }
2595 }
2596 else if (h->root.type == bfd_link_hash_undefweak)
2597 ;
2598 else if (info->unresolved_syms_in_objects == RM_IGNORE
2599 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2600 ;
2601 else if (!info->relocatable)
2602 {
2603 if (! ((*info->callbacks->undefined_symbol)
2604 (info, h->root.root.string, input_bfd,
2605 input_section, offset,
2606 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2607 || ELF_ST_VISIBILITY (h->other)))))
2608 return FALSE;
2609 }
2610 }
2611
2612 if (sec != NULL && elf_discarded_section (sec))
2613 {
2614 /* For relocs against symbols from removed linkonce sections,
2615 or sections discarded by a linker script, we just want the
2616 section contents zeroed. Avoid any special processing. */
2617 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2618 rel->r_info = 0;
2619 rel->r_addend = 0;
2620 continue;
2621 }
2622
2623 if (info->relocatable && !use_rel)
252b5132 2624 {
1049f94e 2625 /* This is a relocatable link. We don't have to change
252b5132
RH
2626 anything, unless the reloc is against a section symbol,
2627 in which case we have to adjust according to where the
2628 section symbol winds up in the output section. */
ab96bf03
AM
2629 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2630 rel->r_addend += sec->output_offset;
2631 continue;
2632 }
252b5132 2633
ab96bf03
AM
2634 if (info->relocatable && use_rel)
2635 {
2636 /* This is a relocatable link. We don't have to change
2637 anything, unless the reloc is against a section symbol,
2638 in which case we have to adjust according to where the
2639 section symbol winds up in the output section. */
2640 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2641 continue;
252b5132 2642
ab96bf03 2643 addend += sec->output_offset;
252b5132 2644
252b5132
RH
2645 /* If partial_inplace, we need to store any additional addend
2646 back in the section. */
2647 if (! howto->partial_inplace)
2648 continue;
2649 /* ??? Here is a nice place to call a special_function
2650 like handler. */
2651 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2652 r = _bfd_relocate_contents (howto, input_bfd,
2653 addend, contents + offset);
2654 else
2655 {
2656 Elf_Internal_Rela *lorel;
2657
2658 /* We allow an arbitrary number of HI16 relocs before the
2659 LO16 reloc. This permits gcc to emit the HI and LO relocs
2660 itself. */
2661 for (lorel = rel + 1;
2662 (lorel < relend
2663 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2664 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2665 lorel++)
2666 continue;
2667 if (lorel < relend
2668 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2669 {
2670 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2671 contents, addend);
2672 r = bfd_reloc_ok;
2673 }
2674 else
2675 r = _bfd_relocate_contents (howto, input_bfd,
2676 addend, contents + offset);
2677 }
252b5132
RH
2678 }
2679 else
2680 {
252b5132 2681 /* Sanity check the address. */
07515404 2682 if (offset > high_address)
252b5132
RH
2683 {
2684 r = bfd_reloc_outofrange;
2685 goto check_reloc;
2686 }
2687
2688 switch ((int) r_type)
2689 {
097f809a
NC
2690 case R_M32R_GOTOFF:
2691 /* Relocation is relative to the start of the global offset
2692 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2693
097f809a
NC
2694 ld24 rx. #label@GOTOFF + addend
2695 sub rx, r12. */
2696
2697 BFD_ASSERT (sgot != NULL);
2698
2699 relocation = -(relocation - sgot->output_section->vma);
2700 rel->r_addend = -rel->r_addend;
2701 break;
2702
2703 case R_M32R_GOTOFF_HI_ULO:
2704 case R_M32R_GOTOFF_HI_SLO:
2705 case R_M32R_GOTOFF_LO:
2706 BFD_ASSERT (sgot != NULL);
2707
2708 relocation -= sgot->output_section->vma;
2709
2710 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2711 && ((relocation + rel->r_addend) & 0x8000))
2712 rel->r_addend += 0x10000;
2713 break;
2714
6edf0760
NC
2715 case R_M32R_GOTPC24:
2716 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2717 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2718 */
2719 relocation = sgot->output_section->vma;
2720 break;
2721
2722 case R_M32R_GOTPC_HI_ULO:
2723 case R_M32R_GOTPC_HI_SLO:
41978308 2724 case R_M32R_GOTPC_LO:
6edf0760
NC
2725 {
2726 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2727 bl .+4
2728 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2729 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2730 or
2731 bl .+4
2732 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2733 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2734 */
2735 relocation = sgot->output_section->vma;
2736 relocation -= (input_section->output_section->vma
2737 + input_section->output_offset
2738 + rel->r_offset);
41978308 2739 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC
2740 && ((relocation + rel->r_addend) & 0x8000))
2741 rel->r_addend += 0x10000;
2742
2743 break;
2744 }
2745 case R_M32R_GOT16_HI_ULO:
2746 case R_M32R_GOT16_HI_SLO:
41978308 2747 case R_M32R_GOT16_LO:
6edf0760
NC
2748 /* Fall through. */
2749 case R_M32R_GOT24:
2750 /* Relocation is to the entry for this symbol in the global
2751 offset table. */
2752 BFD_ASSERT (sgot != NULL);
41978308 2753
6edf0760
NC
2754 if (h != NULL)
2755 {
2756 bfd_boolean dyn;
2757 bfd_vma off;
41978308 2758
6edf0760
NC
2759 off = h->got.offset;
2760 BFD_ASSERT (off != (bfd_vma) -1);
2761
2762 dyn = htab->root.dynamic_sections_created;
c152c796 2763 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6edf0760
NC
2764 || (info->shared
2765 && (info->symbolic
2766 || h->dynindx == -1
f5385ebf
AM
2767 || h->forced_local)
2768 && h->def_regular))
6edf0760
NC
2769 {
2770 /* This is actually a static link, or it is a
2771 -Bsymbolic link and the symbol is defined
2772 locally, or the symbol was forced to be local
2773 because of a version file. We must initialize
2774 this entry in the global offset table. Since the
2775 offset must always be a multiple of 4, we use the
2776 least significant bit to record whether we have
2777 initialized it already.
41978308 2778
6edf0760
NC
2779 When doing a dynamic link, we create a .rela.got
2780 relocation entry to initialize the value. This
2781 is done in the finish_dynamic_symbol routine. */
2782 if ((off & 1) != 0)
2783 off &= ~1;
2784 else
2785 {
2786 bfd_put_32 (output_bfd, relocation,
2787 sgot->contents + off);
2788 h->got.offset |= 1;
2789 }
2790 }
41978308 2791
6edf0760
NC
2792 relocation = sgot->output_offset + off;
2793 }
2794 else
2795 {
2796 bfd_vma off;
2797 bfd_byte *loc;
41978308 2798
6edf0760
NC
2799 BFD_ASSERT (local_got_offsets != NULL
2800 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2801
6edf0760 2802 off = local_got_offsets[r_symndx];
41978308 2803
6edf0760
NC
2804 /* The offset must always be a multiple of 4. We use
2805 the least significant bit to record whether we have
2806 already processed this entry. */
2807 if ((off & 1) != 0)
2808 off &= ~1;
2809 else
2810 {
2811 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2812
6edf0760
NC
2813 if (info->shared)
2814 {
2815 asection *srelgot;
2816 Elf_Internal_Rela outrel;
41978308 2817
6edf0760
NC
2818 /* We need to generate a R_M32R_RELATIVE reloc
2819 for the dynamic linker. */
2820 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2821 BFD_ASSERT (srelgot != NULL);
41978308 2822
6edf0760
NC
2823 outrel.r_offset = (sgot->output_section->vma
2824 + sgot->output_offset
2825 + off);
2826 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2827 outrel.r_addend = relocation;
2828 loc = srelgot->contents;
47b0e7ad 2829 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2830 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2831 ++srelgot->reloc_count;
2832 }
41978308 2833
6edf0760
NC
2834 local_got_offsets[r_symndx] |= 1;
2835 }
41978308 2836
6edf0760
NC
2837 relocation = sgot->output_offset + off;
2838 }
2839 if ((r_type == R_M32R_GOT16_HI_SLO)
2840 && ((relocation + rel->r_addend) & 0x8000))
2841 rel->r_addend += 0x10000;
2842
2843 break;
41978308 2844
6edf0760
NC
2845 case R_M32R_26_PLTREL:
2846 /* Relocation is to the entry for this symbol in the
2847 procedure linkage table. */
41978308 2848
6edf0760
NC
2849 /* The native assembler will generate a 26_PLTREL reloc
2850 for a local symbol if you assemble a call from one
2851 section to another when using -K pic. */
2852 if (h == NULL)
2853 break;
2854
f5385ebf 2855 if (h->forced_local)
6edf0760
NC
2856 break;
2857
2858 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC
2859 /* We didn't make a PLT entry for this symbol. This
2860 happens when statically linking PIC code, or when
2861 using -Bsymbolic. */
2862 break;
41978308 2863
6edf0760
NC
2864 relocation = (splt->output_section->vma
2865 + splt->output_offset
2866 + h->plt.offset);
2867 break;
41978308 2868
6edf0760 2869 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC
2870 if ((relocation + rel->r_addend) & 0x8000)
2871 rel->r_addend += 0x10000;
6edf0760 2872 /* Fall through. */
47b0e7ad 2873
6edf0760
NC
2874 case R_M32R_16_RELA:
2875 case R_M32R_24_RELA:
2876 case R_M32R_32_RELA:
157e7bd1 2877 case R_M32R_REL32:
8ce757c4 2878 case R_M32R_10_PCREL_RELA:
6edf0760
NC
2879 case R_M32R_18_PCREL_RELA:
2880 case R_M32R_26_PCREL_RELA:
2881 case R_M32R_HI16_ULO_RELA:
2882 case R_M32R_LO16_RELA:
6edf0760
NC
2883 if (info->shared
2884 && r_symndx != 0
2885 && (input_section->flags & SEC_ALLOC) != 0
8ce757c4
NC
2886 && (( r_type != R_M32R_10_PCREL_RELA
2887 && r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC
2888 && r_type != R_M32R_26_PCREL_RELA
2889 && r_type != R_M32R_REL32)
6edf0760
NC
2890 || (h != NULL
2891 && h->dynindx != -1
2892 && (! info->symbolic
f5385ebf 2893 || !h->def_regular))))
6edf0760
NC
2894 {
2895 Elf_Internal_Rela outrel;
2896 bfd_boolean skip, relocate;
2897 bfd_byte *loc;
41978308 2898
6edf0760
NC
2899 /* When generating a shared object, these relocations
2900 are copied into the output file to be resolved at run
2901 time. */
6edf0760
NC
2902 if (sreloc == NULL)
2903 {
83bac4b0
NC
2904 sreloc = _bfd_elf_get_dynamic_reloc_section
2905 (input_bfd, input_section, /*rela?*/ TRUE);
2906 if (sreloc == NULL)
2907 return FALSE;
6edf0760 2908 }
41978308 2909
6edf0760
NC
2910 skip = FALSE;
2911 relocate = FALSE;
41978308 2912
6edf0760
NC
2913 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2914 info,
2915 input_section,
2916 rel->r_offset);
2917 if (outrel.r_offset == (bfd_vma) -1)
2918 skip = TRUE;
2919 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2920 skip = relocate = TRUE;
6edf0760
NC
2921 outrel.r_offset += (input_section->output_section->vma
2922 + input_section->output_offset);
41978308 2923
6edf0760
NC
2924 if (skip)
2925 memset (&outrel, 0, sizeof outrel);
8ce757c4
NC
2926 else if ( r_type == R_M32R_10_PCREL_RELA
2927 || r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC
2928 || r_type == R_M32R_26_PCREL_RELA
2929 || r_type == R_M32R_REL32)
6edf0760
NC
2930 {
2931 BFD_ASSERT (h != NULL && h->dynindx != -1);
2932 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2933 outrel.r_addend = rel->r_addend;
2934 }
2935 else
2936 {
2937 /* h->dynindx may be -1 if this symbol was marked to
2938 become local. */
2939 if (h == NULL
2940 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2941 && h->def_regular))
6edf0760
NC
2942 {
2943 relocate = TRUE;
2944 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2945 outrel.r_addend = relocation + rel->r_addend;
2946 }
2947 else
2948 {
2949 BFD_ASSERT (h->dynindx != -1);
2950 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2951 outrel.r_addend = relocation + rel->r_addend;
2952 }
2953 }
2954
2955 loc = sreloc->contents;
47b0e7ad 2956 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
2957 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2958 ++sreloc->reloc_count;
2959
2960 /* If this reloc is against an external symbol, we do
2961 not want to fiddle with the addend. Otherwise, we
2962 need to include the symbol value so that it becomes
2963 an addend for the dynamic reloc. */
2964 if (! relocate)
2965 continue;
8ce757c4 2966 break;
6edf0760 2967 }
8ce757c4
NC
2968 else if (r_type != R_M32R_10_PCREL_RELA)
2969 break;
2970 /* Fall through. */
41978308 2971
252b5132
RH
2972 case (int) R_M32R_10_PCREL :
2973 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2974 contents, offset,
2975 sec, relocation, addend);
6edf0760 2976 goto check_reloc;
252b5132
RH
2977
2978 case (int) R_M32R_HI16_SLO :
2979 case (int) R_M32R_HI16_ULO :
2980 {
2981 Elf_Internal_Rela *lorel;
2982
2983 /* We allow an arbitrary number of HI16 relocs before the
2984 LO16 reloc. This permits gcc to emit the HI and LO relocs
2985 itself. */
2986 for (lorel = rel + 1;
2987 (lorel < relend
2988 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2989 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2990 lorel++)
2991 continue;
2992 if (lorel < relend
2993 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2994 {
2995 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2996 contents, relocation + addend);
2997 r = bfd_reloc_ok;
2998 }
2999 else
3000 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3001 contents, offset,
3002 relocation, addend);
3003 }
6edf0760
NC
3004
3005 goto check_reloc;
252b5132 3006
af705ba8 3007 case (int) R_M32R_SDA16_RELA:
252b5132
RH
3008 case (int) R_M32R_SDA16 :
3009 {
3010 const char *name;
3011
3012 BFD_ASSERT (sec != NULL);
3013 name = bfd_get_section_name (abfd, sec);
3014
47b0e7ad 3015 if ( strcmp (name, ".sdata") == 0
252b5132
RH
3016 || strcmp (name, ".sbss") == 0
3017 || strcmp (name, ".scommon") == 0)
3018 {
3019 bfd_vma sda_base;
3020 bfd *out_bfd = sec->output_section->owner;
3021
3022 r = m32r_elf_final_sda_base (out_bfd, info,
3023 &errmsg,
3024 &sda_base);
3025 if (r != bfd_reloc_ok)
3026 {
b34976b6 3027 ret = FALSE;
252b5132
RH
3028 goto check_reloc;
3029 }
3030
3031 /* At this point `relocation' contains the object's
3032 address. */
3033 relocation -= sda_base;
3034 /* Now it contains the offset from _SDA_BASE_. */
3035 }
3036 else
3037 {
8f615d07 3038 (*_bfd_error_handler)
d003868e
AM
3039 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3040 input_bfd,
3041 sec,
8f615d07 3042 sym_name,
d003868e 3043 m32r_elf_howto_table[(int) r_type].name);
252b5132 3044 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3045 ret = FALSE;
252b5132
RH
3046 continue;
3047 }
3048 }
47b0e7ad 3049 /* Fall through. */
6edf0760
NC
3050
3051 default : /* OLD_M32R_RELOC */
252b5132 3052
252b5132
RH
3053 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3054 contents, offset,
3055 relocation, addend);
6edf0760 3056 goto check_reloc;
252b5132 3057 }
6edf0760
NC
3058
3059 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3060 contents, rel->r_offset,
3061 relocation, rel->r_addend);
3062
252b5132
RH
3063 }
3064
3065 check_reloc:
3066
3067 if (r != bfd_reloc_ok)
3068 {
3069 /* FIXME: This should be generic enough to go in a utility. */
3070 const char *name;
3071
3072 if (h != NULL)
3073 name = h->root.root.string;
3074 else
3075 {
3076 name = (bfd_elf_string_from_elf_section
3077 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3078 if (name == NULL || *name == '\0')
3079 name = bfd_section_name (input_bfd, sec);
3080 }
3081
3082 if (errmsg != NULL)
3083 goto common_error;
3084
3085 switch (r)
3086 {
3087 case bfd_reloc_overflow:
3088 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L
3089 (info, (h ? &h->root : NULL), name, howto->name,
3090 (bfd_vma) 0, input_bfd, input_section, offset)))
b34976b6 3091 return FALSE;
252b5132
RH
3092 break;
3093
3094 case bfd_reloc_undefined:
3095 if (! ((*info->callbacks->undefined_symbol)
3096 (info, name, input_bfd, input_section,
b34976b6
AM
3097 offset, TRUE)))
3098 return FALSE;
252b5132
RH
3099 break;
3100
3101 case bfd_reloc_outofrange:
3102 errmsg = _("internal error: out of range error");
3103 goto common_error;
3104
3105 case bfd_reloc_notsupported:
3106 errmsg = _("internal error: unsupported relocation error");
3107 goto common_error;
3108
3109 case bfd_reloc_dangerous:
3110 errmsg = _("internal error: dangerous error");
3111 goto common_error;
3112
3113 default:
3114 errmsg = _("internal error: unknown error");
3115 /* fall through */
3116
3117 common_error:
3118 if (!((*info->callbacks->warning)
3119 (info, errmsg, name, input_bfd, input_section,
3120 offset)))
b34976b6 3121 return FALSE;
252b5132
RH
3122 break;
3123 }
3124 }
3125 }
3126
3127 return ret;
3128}
6edf0760
NC
3129
3130/* Finish up dynamic symbol handling. We set the contents of various
3131 dynamic sections here. */
47b0e7ad 3132
6edf0760 3133static bfd_boolean
47b0e7ad
NC
3134m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3135 struct bfd_link_info *info,
3136 struct elf_link_hash_entry *h,
3137 Elf_Internal_Sym *sym)
6edf0760
NC
3138{
3139 struct elf_m32r_link_hash_table *htab;
3140 bfd *dynobj;
3141 bfd_byte *loc;
41978308 3142
6edf0760 3143#ifdef DEBUG_PIC
47b0e7ad 3144 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3145#endif
41978308 3146
6edf0760
NC
3147 htab = m32r_elf_hash_table (info);
3148 dynobj = htab->root.dynobj;
3149
3150 if (h->plt.offset != (bfd_vma) -1)
3151 {
3152 asection *splt;
3153 asection *sgot;
3154 asection *srela;
3155
3156 bfd_vma plt_index;
3157 bfd_vma got_offset;
3158 Elf_Internal_Rela rela;
41978308 3159
6edf0760
NC
3160 /* This symbol has an entry in the procedure linkage table. Set
3161 it up. */
41978308 3162
6edf0760 3163 BFD_ASSERT (h->dynindx != -1);
41978308 3164
6edf0760
NC
3165 splt = htab->splt;
3166 sgot = htab->sgotplt;
3167 srela = htab->srelplt;
3168 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3169
3170 /* Get the index in the procedure linkage table which
3171 corresponds to this symbol. This is the index of this symbol
3172 in all the symbols for which we are making plt entries. The
3173 first entry in the procedure linkage table is reserved. */
3174 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3175
3176 /* Get the offset into the .got table of the entry that
3177 corresponds to this function. Each .got entry is 4 bytes.
3178 The first three are reserved. */
3179 got_offset = (plt_index + 3) * 4;
3180
3181 /* Fill in the entry in the procedure linkage table. */
3182 if (! info->shared)
3183 {
3184 bfd_put_32 (output_bfd,
3185 (PLT_ENTRY_WORD0b
3186 + (((sgot->output_section->vma
3187 + sgot->output_offset
3188 + got_offset) >> 16) & 0xffff)),
3189 splt->contents + h->plt.offset);
3190 bfd_put_32 (output_bfd,
3191 (PLT_ENTRY_WORD1b
3192 + ((sgot->output_section->vma
3193 + sgot->output_offset
3194 + got_offset) & 0xffff)),
3195 splt->contents + h->plt.offset + 4);
3196 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3197 splt->contents + h->plt.offset + 8);
3198 bfd_put_32 (output_bfd,
3199 (PLT_ENTRY_WORD3
3200 + plt_index * sizeof (Elf32_External_Rela)),
3201 splt->contents + h->plt.offset + 12);
3202 bfd_put_32 (output_bfd,
3203 (PLT_ENTRY_WORD4
3204 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3205 splt->contents + h->plt.offset + 16);
3206 }
3207 else
3208 {
3209 bfd_put_32 (output_bfd,
3210 PLT_ENTRY_WORD0 + got_offset,
3211 splt->contents + h->plt.offset);
3212 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3213 splt->contents + h->plt.offset + 4);
3214 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3215 splt->contents + h->plt.offset + 8);
3216 bfd_put_32 (output_bfd,
3217 (PLT_ENTRY_WORD3
3218 + plt_index * sizeof (Elf32_External_Rela)),
3219 splt->contents + h->plt.offset + 12);
3220 bfd_put_32 (output_bfd,
3221 (PLT_ENTRY_WORD4
3222 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3223 splt->contents + h->plt.offset + 16);
3224 }
41978308 3225
6edf0760
NC
3226 /* Fill in the entry in the global offset table. */
3227 bfd_put_32 (output_bfd,
3228 (splt->output_section->vma
3229 + splt->output_offset
3230 + h->plt.offset
3231 + 12), /* same offset */
3232 sgot->contents + got_offset);
3233
3234 /* Fill in the entry in the .rela.plt section. */
3235 rela.r_offset = (sgot->output_section->vma
3236 + sgot->output_offset
3237 + got_offset);
3238 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3239 rela.r_addend = 0;
3240 loc = srela->contents;
47b0e7ad 3241 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3242 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3243
f5385ebf 3244 if (!h->def_regular)
6edf0760
NC
3245 {
3246 /* Mark the symbol as undefined, rather than as defined in
3247 the .plt section. Leave the value alone. */
3248 sym->st_shndx = SHN_UNDEF;
3249 }
3250 }
3251
3252 if (h->got.offset != (bfd_vma) -1)
3253 {
3254 asection *sgot;
3255 asection *srela;
3256 Elf_Internal_Rela rela;
41978308 3257
6edf0760
NC
3258 /* This symbol has an entry in the global offset table. Set it
3259 up. */
41978308 3260
6edf0760
NC
3261 sgot = htab->sgot;
3262 srela = htab->srelgot;
3263 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3264
6edf0760
NC
3265 rela.r_offset = (sgot->output_section->vma
3266 + sgot->output_offset
3267 + (h->got.offset &~ 1));
41978308 3268
6edf0760
NC
3269 /* If this is a -Bsymbolic link, and the symbol is defined
3270 locally, we just want to emit a RELATIVE reloc. Likewise if
3271 the symbol was forced to be local because of a version file.
3272 The entry in the global offset table will already have been
3273 initialized in the relocate_section function. */
3274 if (info->shared
3275 && (info->symbolic
3276 || h->dynindx == -1
f5385ebf
AM
3277 || h->forced_local)
3278 && h->def_regular)
6edf0760
NC
3279 {
3280 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3281 rela.r_addend = (h->root.u.def.value
3282 + h->root.u.def.section->output_section->vma
3283 + h->root.u.def.section->output_offset);
3284 }
3285 else
3286 {
47b0e7ad 3287 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC
3288 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3289 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3290 rela.r_addend = 0;
3291 }
41978308 3292
6edf0760 3293 loc = srela->contents;
47b0e7ad 3294 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3295 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3296 ++srela->reloc_count;
3297 }
41978308 3298
f5385ebf 3299 if (h->needs_copy)
6edf0760
NC
3300 {
3301 asection *s;
3302 Elf_Internal_Rela rela;
41978308 3303
6edf0760 3304 /* This symbols needs a copy reloc. Set it up. */
41978308 3305
6edf0760
NC
3306 BFD_ASSERT (h->dynindx != -1
3307 && (h->root.type == bfd_link_hash_defined
3308 || h->root.type == bfd_link_hash_defweak));
41978308 3309
6edf0760
NC
3310 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3311 ".rela.bss");
3312 BFD_ASSERT (s != NULL);
41978308 3313
6edf0760
NC
3314 rela.r_offset = (h->root.u.def.value
3315 + h->root.u.def.section->output_section->vma
3316 + h->root.u.def.section->output_offset);
3317 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3318 rela.r_addend = 0;
3319 loc = s->contents;
47b0e7ad 3320 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC
3321 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3322 ++s->reloc_count;
3323 }
41978308 3324
6edf0760
NC
3325 /* Mark some specially defined symbols as absolute. */
3326 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
22edb2f1 3327 || h == htab->root.hgot)
6edf0760 3328 sym->st_shndx = SHN_ABS;
41978308 3329
6edf0760
NC
3330 return TRUE;
3331}
3332
3333
3334/* Finish up the dynamic sections. */
41978308 3335
6edf0760 3336static bfd_boolean
47b0e7ad
NC
3337m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3338 struct bfd_link_info *info)
6edf0760
NC
3339{
3340 struct elf_m32r_link_hash_table *htab;
3341 bfd *dynobj;
3342 asection *sdyn;
3343 asection *sgot;
3344
3345#ifdef DEBUG_PIC
47b0e7ad 3346 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3347#endif
41978308 3348
6edf0760
NC
3349 htab = m32r_elf_hash_table (info);
3350 dynobj = htab->root.dynobj;
3351
3352 sgot = htab->sgotplt;
3353 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
41978308 3354
6edf0760
NC
3355 if (htab->root.dynamic_sections_created)
3356 {
3357 asection *splt;
3358 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3359
6edf0760 3360 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3361
6edf0760 3362 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3363 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC
3364
3365 for (; dyncon < dynconend; dyncon++)
3366 {
3367 Elf_Internal_Dyn dyn;
3368 const char *name;
3369 asection *s;
41978308 3370
6edf0760 3371 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3372
6edf0760
NC
3373 switch (dyn.d_tag)
3374 {
3375 default:
3376 break;
3377
3378 case DT_PLTGOT:
3379 name = ".got";
41978308 3380 s = htab->sgot->output_section;
6edf0760
NC
3381 goto get_vma;
3382 case DT_JMPREL:
3383 name = ".rela.plt";
3384 s = htab->srelplt->output_section;
3385 get_vma:
3386 BFD_ASSERT (s != NULL);
3387 dyn.d_un.d_ptr = s->vma;
3388 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3389 break;
3390
3391 case DT_PLTRELSZ:
3392 s = htab->srelplt->output_section;
3393 BFD_ASSERT (s != NULL);
eea6121a 3394 dyn.d_un.d_val = s->size;
6edf0760
NC
3395 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3396 break;
3397
3398 case DT_RELASZ:
3399 /* My reading of the SVR4 ABI indicates that the
3400 procedure linkage table relocs (DT_JMPREL) should be
3401 included in the overall relocs (DT_RELA). This is
3402 what Solaris does. However, UnixWare can not handle
3403 that case. Therefore, we override the DT_RELASZ entry
3404 here to make it not include the JMPREL relocs. Since
3405 the linker script arranges for .rela.plt to follow all
3406 other relocation sections, we don't have to worry
3407 about changing the DT_RELA entry. */
3408 if (htab->srelplt != NULL)
3409 {
3410 s = htab->srelplt->output_section;
eea6121a 3411 dyn.d_un.d_val -= s->size;
6edf0760
NC
3412 }
3413 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3414 break;
3415 }
3416 }
41978308 3417
6edf0760
NC
3418 /* Fill in the first entry in the procedure linkage table. */
3419 splt = htab->splt;
eea6121a 3420 if (splt && splt->size > 0)
6edf0760
NC
3421 {
3422 if (info->shared)
3423 {
3424 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3425 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3426 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3427 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3428 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3429 }
3430 else
3431 {
3432 unsigned long addr;
3433 /* addr = .got + 4 */
3434 addr = sgot->output_section->vma + sgot->output_offset + 4;
3435 bfd_put_32 (output_bfd,
3436 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3437 splt->contents);
41978308 3438 bfd_put_32 (output_bfd,
6edf0760
NC
3439 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3440 splt->contents + 4);
3441 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3442 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3443 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3444 }
3445
3446 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3447 PLT_ENTRY_SIZE;
3448 }
3449 }
3450
3451 /* Fill in the first three entries in the global offset table. */
eea6121a 3452 if (sgot && sgot->size > 0)
6edf0760
NC
3453 {
3454 if (sdyn == NULL)
3455 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3456 else
3457 bfd_put_32 (output_bfd,
3458 sdyn->output_section->vma + sdyn->output_offset,
3459 sgot->contents);
3460 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3461 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3462
3463 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3464 }
41978308 3465
6edf0760
NC
3466 return TRUE;
3467}
3468
252b5132
RH
3469\f
3470/* Set the right machine number. */
47b0e7ad 3471
b34976b6 3472static bfd_boolean
47b0e7ad 3473m32r_elf_object_p (bfd *abfd)
252b5132
RH
3474{
3475 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3476 {
3477 default:
3478 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3479 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3480 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3481 }
b34976b6 3482 return TRUE;
252b5132
RH
3483}
3484
3485/* Store the machine number in the flags field. */
47b0e7ad 3486
252b5132 3487static void
47b0e7ad
NC
3488m32r_elf_final_write_processing (bfd *abfd,
3489 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH
3490{
3491 unsigned long val;
3492
3493 switch (bfd_get_mach (abfd))
3494 {
3495 default:
3496 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3497 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3498 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH
3499 }
3500
3501 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3502 elf_elfheader (abfd)->e_flags |= val;
3503}
3504
c3668558 3505/* Function to keep M32R specific file flags. */
47b0e7ad 3506
b34976b6 3507static bfd_boolean
47b0e7ad 3508m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH
3509{
3510 BFD_ASSERT (!elf_flags_init (abfd)
3511 || elf_elfheader (abfd)->e_flags == flags);
3512
3513 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM
3514 elf_flags_init (abfd) = TRUE;
3515 return TRUE;
252b5132
RH
3516}
3517
252b5132
RH
3518/* Merge backend specific data from an object file to the output
3519 object file when linking. */
47b0e7ad 3520
b34976b6 3521static bfd_boolean
47b0e7ad 3522m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH
3523{
3524 flagword out_flags;
3525 flagword in_flags;
3526
3527 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3528 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3529 return TRUE;
252b5132
RH
3530
3531 in_flags = elf_elfheader (ibfd)->e_flags;
3532 out_flags = elf_elfheader (obfd)->e_flags;
3533
3534 if (! elf_flags_init (obfd))
3535 {
3536 /* If the input is the default architecture then do not
3537 bother setting the flags for the output architecture,
3538 instead allow future merges to do this. If no future
3539 merges ever set these flags then they will retain their
3540 unitialised values, which surprise surprise, correspond
3541 to the default values. */
3542 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3543 return TRUE;
c3668558 3544
b34976b6 3545 elf_flags_init (obfd) = TRUE;
252b5132
RH
3546 elf_elfheader (obfd)->e_flags = in_flags;
3547
3548 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3549 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC
3550 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3551 bfd_get_mach (ibfd));
252b5132 3552
b34976b6 3553 return TRUE;
252b5132
RH
3554 }
3555
3556 /* Check flag compatibility. */
3557 if (in_flags == out_flags)
b34976b6 3558 return TRUE;
252b5132
RH
3559
3560 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3561 {
88845958
NC
3562 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3563 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3564 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3565 {
8f615d07 3566 (*_bfd_error_handler)
d003868e 3567 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH
3568
3569 bfd_set_error (bfd_error_bad_value);
b34976b6 3570 return FALSE;
252b5132
RH
3571 }
3572 }
3573
b34976b6 3574 return TRUE;
252b5132
RH
3575}
3576
47b0e7ad
NC
3577/* Display the flags field. */
3578
b34976b6 3579static bfd_boolean
47b0e7ad 3580m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH
3581{
3582 FILE * file = (FILE *) ptr;
c3668558 3583
f12123c0 3584 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3585
252b5132 3586 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3587
252b5132 3588 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3589
252b5132
RH
3590 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3591 {
3592 default:
3593 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3594 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3595 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3596 }
c3668558 3597
252b5132 3598 fputc ('\n', file);
c3668558 3599
b34976b6 3600 return TRUE;
252b5132
RH
3601}
3602
47b0e7ad
NC
3603static asection *
3604m32r_elf_gc_mark_hook (asection *sec,
07adf181 3605 struct bfd_link_info *info,
47b0e7ad
NC
3606 Elf_Internal_Rela *rel,
3607 struct elf_link_hash_entry *h,
3608 Elf_Internal_Sym *sym)
252b5132
RH
3609{
3610 if (h != NULL)
07adf181 3611 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH
3612 {
3613 case R_M32R_GNU_VTINHERIT:
3614 case R_M32R_GNU_VTENTRY:
6edf0760
NC
3615 case R_M32R_RELA_GNU_VTINHERIT:
3616 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM
3617 return NULL;
3618 }
1e2f5b6e 3619
07adf181 3620 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH
3621}
3622
b34976b6 3623static bfd_boolean
47b0e7ad
NC
3624m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3625 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3626 asection *sec ATTRIBUTE_UNUSED,
3627 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3628{
6edf0760
NC
3629 /* Update the got entry reference counts for the section being removed. */
3630 Elf_Internal_Shdr *symtab_hdr;
3631 struct elf_link_hash_entry **sym_hashes;
3632 bfd_signed_vma *local_got_refcounts;
3633 const Elf_Internal_Rela *rel, *relend;
6edf0760 3634
7dda2462
TG
3635 if (info->relocatable)
3636 return TRUE;
3637
6edf0760
NC
3638 elf_section_data (sec)->local_dynrel = NULL;
3639
3640 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3641 sym_hashes = elf_sym_hashes (abfd);
3642 local_got_refcounts = elf_local_got_refcounts (abfd);
3643
3644 relend = relocs + sec->reloc_count;
3645 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM
3646 {
3647 unsigned long r_symndx;
3648 struct elf_link_hash_entry *h = NULL;
6edf0760 3649
3eb128b2
AM
3650 r_symndx = ELF32_R_SYM (rel->r_info);
3651 if (r_symndx >= symtab_hdr->sh_info)
3652 {
3653 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3654 while (h->root.type == bfd_link_hash_indirect
3655 || h->root.type == bfd_link_hash_warning)
3656 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3657 }
6edf0760 3658
3eb128b2
AM
3659 switch (ELF32_R_TYPE (rel->r_info))
3660 {
3661 case R_M32R_GOT16_HI_ULO:
3662 case R_M32R_GOT16_HI_SLO:
3663 case R_M32R_GOT16_LO:
3664 case R_M32R_GOTOFF:
3665 case R_M32R_GOTOFF_HI_ULO:
3666 case R_M32R_GOTOFF_HI_SLO:
3667 case R_M32R_GOTOFF_LO:
3668 case R_M32R_GOT24:
3669 case R_M32R_GOTPC_HI_ULO:
3670 case R_M32R_GOTPC_HI_SLO:
3671 case R_M32R_GOTPC_LO:
3672 case R_M32R_GOTPC24:
3673 if (h != NULL)
3674 {
3675 if (h->got.refcount > 0)
3676 h->got.refcount--;
3677 }
3678 else
3679 {
3680 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3681 local_got_refcounts[r_symndx]--;
3682 }
3683 break;
3684
3685 case R_M32R_16_RELA:
3686 case R_M32R_24_RELA:
3687 case R_M32R_32_RELA:
157e7bd1 3688 case R_M32R_REL32:
3eb128b2
AM
3689 case R_M32R_HI16_ULO_RELA:
3690 case R_M32R_HI16_SLO_RELA:
3691 case R_M32R_LO16_RELA:
3692 case R_M32R_SDA16_RELA:
8ce757c4 3693 case R_M32R_10_PCREL_RELA:
3eb128b2
AM
3694 case R_M32R_18_PCREL_RELA:
3695 case R_M32R_26_PCREL_RELA:
3696 if (h != NULL)
3697 {
3698 struct elf_m32r_link_hash_entry *eh;
3699 struct elf_m32r_dyn_relocs **pp;
3700 struct elf_m32r_dyn_relocs *p;
6edf0760 3701
3eb128b2
AM
3702 if (!info->shared && h->plt.refcount > 0)
3703 h->plt.refcount -= 1;
6edf0760 3704
3eb128b2 3705 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3706
3eb128b2
AM
3707 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3708 if (p->sec == sec)
3709 {
8ce757c4
NC
3710 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3711 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3712 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
157e7bd1 3713 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3eb128b2
AM
3714 p->pc_count -= 1;
3715 p->count -= 1;
3716 if (p->count == 0)
3717 *pp = p->next;
3718 break;
3719 }
3720 }
3721 break;
6edf0760 3722
3eb128b2
AM
3723 case R_M32R_26_PLTREL:
3724 if (h != NULL)
3725 {
3726 if (h->plt.refcount > 0)
3727 h->plt.refcount--;
3728 }
3729 break;
6edf0760 3730
3eb128b2
AM
3731 default:
3732 break;
3733 }
3734 }
6edf0760 3735
b34976b6 3736 return TRUE;
252b5132
RH
3737}
3738
252b5132
RH
3739/* Look through the relocs for a section during the first phase.
3740 Since we don't do .gots or .plts, we just need to consider the
3741 virtual table relocs for gc. */
c3668558 3742
b34976b6 3743static bfd_boolean
47b0e7ad
NC
3744m32r_elf_check_relocs (bfd *abfd,
3745 struct bfd_link_info *info,
3746 asection *sec,
3747 const Elf_Internal_Rela *relocs)
252b5132
RH
3748{
3749 Elf_Internal_Shdr *symtab_hdr;
5582a088 3750 struct elf_link_hash_entry **sym_hashes;
252b5132
RH
3751 const Elf_Internal_Rela *rel;
3752 const Elf_Internal_Rela *rel_end;
6edf0760
NC
3753 struct elf_m32r_link_hash_table *htab;
3754 bfd *dynobj;
3755 bfd_vma *local_got_offsets;
3756 asection *sgot, *srelgot, *sreloc;
c3668558 3757
1049f94e 3758 if (info->relocatable)
b34976b6 3759 return TRUE;
c3668558 3760
6edf0760
NC
3761 sgot = srelgot = sreloc = NULL;
3762
252b5132
RH
3763 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3764 sym_hashes = elf_sym_hashes (abfd);
c3668558 3765
6edf0760
NC
3766 htab = m32r_elf_hash_table (info);
3767 dynobj = htab->root.dynobj;
3768 local_got_offsets = elf_local_got_offsets (abfd);
3769
252b5132
RH
3770 rel_end = relocs + sec->reloc_count;
3771 for (rel = relocs; rel < rel_end; rel++)
3772 {
6edf0760 3773 int r_type;
252b5132
RH
3774 struct elf_link_hash_entry *h;
3775 unsigned long r_symndx;
c3668558 3776
252b5132 3777 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3778 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH
3779 if (r_symndx < symtab_hdr->sh_info)
3780 h = NULL;
3781 else
973a3492
L
3782 {
3783 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3784 while (h->root.type == bfd_link_hash_indirect
3785 || h->root.type == bfd_link_hash_warning)
3786 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3787 }
c3668558 3788
6edf0760
NC
3789 /* Some relocs require a global offset table. */
3790 if (htab->sgot == NULL)
3791 {
3792 switch (r_type)
3793 {
3794 case R_M32R_GOT16_HI_ULO:
3795 case R_M32R_GOT16_HI_SLO:
097f809a
NC
3796 case R_M32R_GOTOFF:
3797 case R_M32R_GOTOFF_HI_ULO:
3798 case R_M32R_GOTOFF_HI_SLO:
3799 case R_M32R_GOTOFF_LO:
6edf0760
NC
3800 case R_M32R_GOT16_LO:
3801 case R_M32R_GOTPC24:
3802 case R_M32R_GOTPC_HI_ULO:
3803 case R_M32R_GOTPC_HI_SLO:
3804 case R_M32R_GOTPC_LO:
3805 case R_M32R_GOT24:
3806 if (dynobj == NULL)
3807 htab->root.dynobj = dynobj = abfd;
3808 if (! create_got_section (dynobj, info))
3809 return FALSE;
3810 break;
3811
3812 default:
3813 break;
3814 }
3815 }
3816
3817 switch (r_type)
252b5132 3818 {
6edf0760
NC
3819 case R_M32R_GOT16_HI_ULO:
3820 case R_M32R_GOT16_HI_SLO:
41978308 3821 case R_M32R_GOT16_LO:
6edf0760
NC
3822 case R_M32R_GOT24:
3823
3824 if (h != NULL)
3825 h->got.refcount += 1;
3826 else
3827 {
3828 bfd_signed_vma *local_got_refcounts;
3829
3830 /* This is a global offset table entry for a local
3831 symbol. */
3832 local_got_refcounts = elf_local_got_refcounts (abfd);
3833 if (local_got_refcounts == NULL)
3834 {
3835 bfd_size_type size;
3836
3837 size = symtab_hdr->sh_info;
3838 size *= sizeof (bfd_signed_vma);
47b0e7ad 3839 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC
3840 if (local_got_refcounts == NULL)
3841 return FALSE;
3842 elf_local_got_refcounts (abfd) = local_got_refcounts;
3843 }
3844 local_got_refcounts[r_symndx] += 1;
3845 }
3846 break;
3847
3848 case R_M32R_26_PLTREL:
3849 /* This symbol requires a procedure linkage table entry. We
3850 actually build the entry in adjust_dynamic_symbol,
3851 because this might be a case of linking PIC code without
3852 linking in any dynamic objects, in which case we don't
3853 need to generate a procedure linkage table after all. */
41978308 3854
6edf0760
NC
3855 /* If this is a local symbol, we resolve it directly without
3856 creating a procedure linkage table entry. */
3857 if (h == NULL)
3858 continue;
3859
f5385ebf 3860 if (h->forced_local)
6edf0760
NC
3861 break;
3862
f5385ebf 3863 h->needs_plt = 1;
6edf0760
NC
3864 h->plt.refcount += 1;
3865 break;
3866
3867 case R_M32R_16_RELA:
3868 case R_M32R_24_RELA:
3869 case R_M32R_32_RELA:
157e7bd1 3870 case R_M32R_REL32:
6edf0760
NC
3871 case R_M32R_HI16_ULO_RELA:
3872 case R_M32R_HI16_SLO_RELA:
3873 case R_M32R_LO16_RELA:
3874 case R_M32R_SDA16_RELA:
8ce757c4 3875 case R_M32R_10_PCREL_RELA:
6edf0760
NC
3876 case R_M32R_18_PCREL_RELA:
3877 case R_M32R_26_PCREL_RELA:
3878
3879 if (h != NULL && !info->shared)
3880 {
f5385ebf 3881 h->non_got_ref = 1;
6edf0760
NC
3882 h->plt.refcount += 1;
3883 }
3884
3885 /* If we are creating a shared library, and this is a reloc
3886 against a global symbol, or a non PC relative reloc
3887 against a local symbol, then we need to copy the reloc
3888 into the shared library. However, if we are linking with
3889 -Bsymbolic, we do not need to copy a reloc against a
3890 global symbol which is defined in an object we are
3891 including in the link (i.e., DEF_REGULAR is set). At
3892 this point we have not seen all the input files, so it is
3893 possible that DEF_REGULAR is not set now but will be set
3894 later (it is never cleared). We account for that
3895 possibility below by storing information in the
3896 dyn_relocs field of the hash table entry. A similar
3897 situation occurs when creating shared libraries and symbol
3898 visibility changes render the symbol local.
3899
3900 If on the other hand, we are creating an executable, we
3901 may need to keep relocations for symbols satisfied by a
3902 dynamic library if we manage to avoid copy relocs for the
3903 symbol. */
3904 if ((info->shared
3905 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3906 && (( r_type != R_M32R_26_PCREL_RELA
157e7bd1 3907 && r_type != R_M32R_18_PCREL_RELA
8ce757c4 3908 && r_type != R_M32R_10_PCREL_RELA
157e7bd1 3909 && r_type != R_M32R_REL32)
6edf0760
NC
3910 || (h != NULL
3911 && (! info->symbolic
3912 || h->root.type == bfd_link_hash_defweak
f5385ebf 3913 || !h->def_regular))))
6edf0760
NC
3914 || (!info->shared
3915 && (sec->flags & SEC_ALLOC) != 0
3916 && h != NULL
3917 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3918 || !h->def_regular)))
6edf0760
NC
3919 {
3920 struct elf_m32r_dyn_relocs *p;
3921 struct elf_m32r_dyn_relocs **head;
3922
3923 if (dynobj == NULL)
3924 htab->root.dynobj = dynobj = abfd;
3925
3926 /* When creating a shared object, we must copy these
3927 relocs into the output file. We create a reloc
3928 section in dynobj and make room for the reloc. */
3929 if (sreloc == NULL)
3930 {
83bac4b0
NC
3931 sreloc = _bfd_elf_make_dynamic_reloc_section
3932 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
41978308 3933
83bac4b0
NC
3934 if (sreloc == NULL)
3935 return FALSE;
6edf0760 3936 }
41978308 3937
6edf0760
NC
3938 /* If this is a global symbol, we count the number of
3939 relocations we need for this symbol. */
3940 if (h != NULL)
3941 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3942 else
3943 {
87d72d41 3944 /* Track dynamic relocs needed for local syms too. */
6edf0760 3945 asection *s;
6edfbbad 3946 void *vpp;
87d72d41 3947 Elf_Internal_Sym *isym;
6edf0760 3948
87d72d41
AM
3949 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3950 abfd, r_symndx);
3951 if (isym == NULL)
3952 return FALSE;
3953
3954 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3955 if (s == NULL)
3956 s = sec;
6edf0760 3957
6edfbbad
DJ
3958 vpp = &elf_section_data (s)->local_dynrel;
3959 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC
3960 }
3961
3962 p = *head;
3963 if (p == NULL || p->sec != sec)
3964 {
3965 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC
3966
3967 p = bfd_alloc (dynobj, amt);
6edf0760
NC
3968 if (p == NULL)
3969 return FALSE;
3970 p->next = *head;
3971 *head = p;
3972 p->sec = sec;
3973 p->count = 0;
3974 p->pc_count = 0;
3975 }
3976
3977 p->count += 1;
8ce757c4
NC
3978 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3979 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3980 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3981 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
6edf0760
NC
3982 p->pc_count += 1;
3983 }
3984 break;
3985
252b5132
RH
3986 /* This relocation describes the C++ object vtable hierarchy.
3987 Reconstruct it for later use during GC. */
6edf0760 3988 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 3989 case R_M32R_GNU_VTINHERIT:
c152c796 3990 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3991 return FALSE;
252b5132 3992 break;
c3668558 3993
252b5132
RH
3994 /* This relocation describes which C++ vtable entries are actually
3995 used. Record for later use during GC. */
3996 case R_M32R_GNU_VTENTRY:
d17e0c6e
JB
3997 BFD_ASSERT (h != NULL);
3998 if (h != NULL
3999 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 4000 return FALSE;
252b5132 4001 break;
6edf0760 4002 case R_M32R_RELA_GNU_VTENTRY:
d17e0c6e
JB
4003 BFD_ASSERT (h != NULL);
4004 if (h != NULL
4005 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC
4006 return FALSE;
4007 break;
252b5132
RH
4008 }
4009 }
c3668558 4010
b34976b6 4011 return TRUE;
252b5132 4012}
2f89ff8d 4013
b35d266b 4014static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 4015{
0112cd26
NC
4016 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
4017 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4018 { NULL, 0, 0, 0, 0 }
7f4d3958
L
4019};
4020
6edf0760 4021static bfd_boolean
47b0e7ad
NC
4022m32r_elf_fake_sections (bfd *abfd,
4023 Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED,
4024 asection *sec)
6edf0760 4025{
47b0e7ad 4026 const char *name;
6edf0760
NC
4027
4028 name = bfd_get_section_name (abfd, sec);
4029
4030 /* The generic elf_fake_sections will set up REL_HDR using the
4031 default kind of relocations. But, we may actually need both
4032 kinds of relocations, so we set up the second header here.
4033
4034 This is not necessary for the O32 ABI since that only uses Elf32_Rel
4035 relocations (cf. System V ABI, MIPS RISC Processor Supplement,
4036 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
4037 of the resulting empty .rela.<section> sections starts with
4038 sh_offset == object size, and ld doesn't allow that. While the check
4039 is arguably bogus for empty or SHT_NOBITS sections, it can easily be
4040 avoided by not emitting those useless sections in the first place. */
4041 if ((sec->flags & SEC_RELOC) != 0)
4042 {
4043 struct bfd_elf_section_data *esd;
4044 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
4045
4046 esd = elf_section_data (sec);
4047 BFD_ASSERT (esd->rel_hdr2 == NULL);
47b0e7ad 4048 esd->rel_hdr2 = bfd_zalloc (abfd, amt);
6edf0760
NC
4049 if (!esd->rel_hdr2)
4050 return FALSE;
4051 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
4052 !sec->use_rela_p);
4053 }
4054
4055 return TRUE;
4056}
4057
4058static enum elf_reloc_type_class
47b0e7ad 4059m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
6edf0760
NC
4060{
4061 switch ((int) ELF32_R_TYPE (rela->r_info))
4062 {
47b0e7ad
NC
4063 case R_M32R_RELATIVE: return reloc_class_relative;
4064 case R_M32R_JMP_SLOT: return reloc_class_plt;
4065 case R_M32R_COPY: return reloc_class_copy;
4066 default: return reloc_class_normal;
6edf0760
NC
4067 }
4068}
252b5132 4069\f
252b5132 4070#define ELF_ARCH bfd_arch_m32r
aa4f99bb
AO
4071#define ELF_MACHINE_CODE EM_M32R
4072#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4073#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132
RH
4074
4075#define TARGET_BIG_SYM bfd_elf32_m32r_vec
4076#define TARGET_BIG_NAME "elf32-m32r"
6edf0760
NC
4077#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4078#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4079
6edf0760 4080#define elf_info_to_howto m32r_info_to_howto
252b5132
RH
4081#define elf_info_to_howto_rel m32r_info_to_howto_rel
4082#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4083#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4084#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4085#define elf_backend_relocate_section m32r_elf_relocate_section
4086#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4087#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4088#define elf_backend_check_relocs m32r_elf_check_relocs
4089
6edf0760
NC
4090#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4091#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4092#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
74541ad4
AM
4093#define elf_backend_omit_section_dynsym \
4094 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
6edf0760
NC
4095#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4096#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4097#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4098#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4099#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4100
252b5132 4101#define elf_backend_can_gc_sections 1
6edf0760 4102/*#if !USE_REL
b491616a 4103#define elf_backend_rela_normal 1
6edf0760
NC
4104#endif*/
4105#define elf_backend_can_refcount 1
4106#define elf_backend_want_got_plt 1
4107#define elf_backend_plt_readonly 1
4108#define elf_backend_want_plt_sym 0
4109#define elf_backend_got_header_size 12
4110
4111#define elf_backend_may_use_rel_p 1
4112#ifdef USE_M32R_OLD_RELOC
4113#define elf_backend_default_use_rela_p 0
4114#define elf_backend_may_use_rela_p 0
4115#else
4116#define elf_backend_default_use_rela_p 1
4117#define elf_backend_may_use_rela_p 1
4118#define elf_backend_fake_sections m32r_elf_fake_sections
b491616a 4119#endif
6edf0760 4120
252b5132
RH
4121#define elf_backend_object_p m32r_elf_object_p
4122#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH
4123#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4124#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4125#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4126#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4127
252b5132 4128#include "elf32-target.h"
6edf0760 4129
47b0e7ad 4130#undef ELF_MAXPAGESIZE
6edf0760
NC
4131#define ELF_MAXPAGESIZE 0x1000
4132
47b0e7ad 4133#undef TARGET_BIG_SYM
6edf0760 4134#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
47b0e7ad 4135#undef TARGET_BIG_NAME
6edf0760 4136#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4137#undef TARGET_LITTLE_SYM
6edf0760 4138#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
47b0e7ad 4139#undef TARGET_LITTLE_NAME
6edf0760 4140#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4141#undef elf32_bed
6edf0760
NC
4142#define elf32_bed elf32_m32r_lin_bed
4143
4144#include "elf32-target.h"
4145
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