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[deliverable/binutils-gdb.git] / bfd / elf32-m32r.c
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252b5132 1/* M32R-specific support for 32-bit ELF.
22d606e9 2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
4dfe6ac6 3 2006, 2007, 2008, 2009, 2010 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
6edf0760 1543#define m32r_elf_hash_table(p) \
4dfe6ac6
NC		 1544 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1545 == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
6edf0760
NC		 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,
4dfe6ac6
NC		 1594 sizeof (struct elf_m32r_link_hash_entry),
1595 M32R_ELF_DATA))
6edf0760
NC		 1596 {
1597 free (ret);
1598 return NULL;
1599 }
41978308 1600
6edf0760
NC		 1601 ret->sgot = NULL;
1602 ret->sgotplt = NULL;
1603 ret->srelgot = NULL;
1604 ret->splt = NULL;
1605 ret->srelplt = NULL;
1606 ret->sdynbss = NULL;
1607 ret->srelbss = NULL;
87d72d41 1608 ret->sym_cache.abfd = NULL;
41978308 1609
6edf0760
NC		 1610 return &ret->root.root;
1611}
1612
1613/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1614 shortcuts to them in our hash table. */
6edf0760
NC		 1615
1616static bfd_boolean
47b0e7ad 1617create_got_section (bfd *dynobj, struct bfd_link_info *info)
6edf0760
NC		 1618{
1619 struct elf_m32r_link_hash_table *htab;
1620
1621 if (! _bfd_elf_create_got_section (dynobj, info))
1622 return FALSE;
1623
1624 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1625 if (htab == NULL)
1626 return FALSE;
1627
6edf0760
NC		 1628 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1629 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
64e77c6d
L		 1630 htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1631 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
6edf0760
NC		 1632 abort ();
1633
6edf0760
NC		 1634 return TRUE;
1635}
1636
1637/* Create dynamic sections when linking against a dynamic object. */
1638
1639static bfd_boolean
47b0e7ad 1640m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760
NC		 1641{
1642 struct elf_m32r_link_hash_table *htab;
1643 flagword flags, pltflags;
47b0e7ad 1644 asection *s;
6edf0760
NC		 1645 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1646 int ptralign = 2; /* 32bit */
1647
1648 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1649 if (htab == NULL)
1650 return FALSE;
6edf0760
NC		 1651
1652 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1653 .rel[a].bss sections. */
6edf0760
NC		 1654 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1655 | SEC_LINKER_CREATED);
1656
1657 pltflags = flags;
1658 pltflags |= SEC_CODE;
1659 if (bed->plt_not_loaded)
1660 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1661 if (bed->plt_readonly)
1662 pltflags |= SEC_READONLY;
1663
3496cb2a 1664 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
6edf0760
NC		 1665 htab->splt = s;
1666 if (s == NULL
6edf0760
NC		 1667 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1668 return FALSE;
1669
1670 if (bed->want_plt_sym)
1671 {
1672 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1673 .plt section. */
41978308
AM		 1674 struct bfd_link_hash_entry *bh = NULL;
1675 struct elf_link_hash_entry *h;
47b0e7ad 1676
6edf0760
NC		 1677 if (! (_bfd_generic_link_add_one_symbol
1678 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
47b0e7ad 1679 (bfd_vma) 0, NULL, FALSE,
41978308 1680 get_elf_backend_data (abfd)->collect, &bh)))
6edf0760 1681 return FALSE;
41978308 1682 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1683 h->def_regular = 1;
6edf0760 1684 h->type = STT_OBJECT;
7325306f 1685 htab->root.hplt = h;
6edf0760
NC		 1686
1687 if (info->shared
c152c796 1688 && ! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 1689 return FALSE;
1690 }
1691
3496cb2a
L		 1692 s = bfd_make_section_with_flags (abfd,
1693 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
1694 flags | SEC_READONLY);
6edf0760
NC		 1695 htab->srelplt = s;
1696 if (s == NULL
6edf0760
NC		 1697 || ! bfd_set_section_alignment (abfd, s, ptralign))
1698 return FALSE;
1699
1700 if (htab->sgot == NULL
1701 && ! create_got_section (abfd, info))
1702 return FALSE;
1703
1704 {
1705 const char *secname;
1706 char *relname;
1707 flagword secflags;
1708 asection *sec;
1709
1710 for (sec = abfd->sections; sec; sec = sec->next)
1711 {
1712 secflags = bfd_get_section_flags (abfd, sec);
1713 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
1714 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
1715 continue;
1716 secname = bfd_get_section_name (abfd, sec);
47b0e7ad 1717 relname = bfd_malloc ((bfd_size_type) strlen (secname) + 6);
6edf0760
NC		 1718 strcpy (relname, ".rela");
1719 strcat (relname, secname);
1720 if (bfd_get_section_by_name (abfd, secname))
1721 continue;
3496cb2a
L		 1722 s = bfd_make_section_with_flags (abfd, relname,
1723 flags | SEC_READONLY);
6edf0760 1724 if (s == NULL
6edf0760
NC		 1725 || ! bfd_set_section_alignment (abfd, s, ptralign))
1726 return FALSE;
1727 }
1728 }
1729
1730 if (bed->want_dynbss)
1731 {
1732 /* The .dynbss section is a place to put symbols which are defined
1733 by dynamic objects, are referenced by regular objects, and are
1734 not functions. We must allocate space for them in the process
1735 image and use a R_*_COPY reloc to tell the dynamic linker to
1736 initialize them at run time. The linker script puts the .dynbss
1737 section into the .bss section of the final image. */
3496cb2a
L		 1738 s = bfd_make_section_with_flags (abfd, ".dynbss",
1739 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1740 htab->sdynbss = s;
3496cb2a 1741 if (s == NULL)
6edf0760
NC		 1742 return FALSE;
1743 /* The .rel[a].bss section holds copy relocs. This section is not
1744 normally needed. We need to create it here, though, so that the
1745 linker will map it to an output section. We can't just create it
1746 only if we need it, because we will not know whether we need it
1747 until we have seen all the input files, and the first time the
1748 main linker code calls BFD after examining all the input files
1749 (size_dynamic_sections) the input sections have already been
1750 mapped to the output sections. If the section turns out not to
1751 be needed, we can discard it later. We will never need this
1752 section when generating a shared object, since they do not use
1753 copy relocs. */
1754 if (! info->shared)
1755 {
3496cb2a
L		 1756 s = bfd_make_section_with_flags (abfd,
1757 (bed->default_use_rela_p
1758 ? ".rela.bss" : ".rel.bss"),
1759 flags | SEC_READONLY);
6edf0760
NC		 1760 htab->srelbss = s;
1761 if (s == NULL
6edf0760
NC		 1762 || ! bfd_set_section_alignment (abfd, s, ptralign))
1763 return FALSE;
1764 }
1765 }
1766
1767 return TRUE;
1768}
1769
1770/* Copy the extra info we tack onto an elf_link_hash_entry. */
41978308 1771
6edf0760 1772static void
fcfa13d2 1773m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
6edf0760
NC		 1774 struct elf_link_hash_entry *dir,
1775 struct elf_link_hash_entry *ind)
1776{
47b0e7ad
NC		 1777 struct elf_m32r_link_hash_entry * edir;
1778 struct elf_m32r_link_hash_entry * eind;
41978308 1779
6edf0760
NC		 1780 edir = (struct elf_m32r_link_hash_entry *) dir;
1781 eind = (struct elf_m32r_link_hash_entry *) ind;
41978308 1782
6edf0760
NC		 1783 if (eind->dyn_relocs != NULL)
1784 {
1785 if (edir->dyn_relocs != NULL)
1786 {
1787 struct elf_m32r_dyn_relocs **pp;
1788 struct elf_m32r_dyn_relocs *p;
41978308 1789
fcfa13d2 1790 /* Add reloc counts against the indirect sym to the direct sym
6edf0760 1791 list. Merge any entries against the same section. */
47b0e7ad 1792 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC		 1793 {
1794 struct elf_m32r_dyn_relocs *q;
41978308 1795
6edf0760
NC		 1796 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1797 if (q->sec == p->sec)
1798 {
1799 q->pc_count += p->pc_count;
1800 q->count += p->count;
1801 *pp = p->next;
1802 break;
1803 }
1804 if (q == NULL)
1805 pp = &p->next;
1806 }
1807 *pp = edir->dyn_relocs;
1808 }
41978308 1809
6edf0760
NC		 1810 edir->dyn_relocs = eind->dyn_relocs;
1811 eind->dyn_relocs = NULL;
1812 }
41978308 1813
fcfa13d2 1814 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
6edf0760
NC		 1815}
1816
1817\f
1818/* Adjust a symbol defined by a dynamic object and referenced by a
1819 regular object. The current definition is in some section of the
1820 dynamic object, but we're not including those sections. We have to
1821 change the definition to something the rest of the link can
1822 understand. */
41978308 1823
6edf0760 1824static bfd_boolean
47b0e7ad
NC		 1825m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1826 struct elf_link_hash_entry *h)
6edf0760
NC		 1827{
1828 struct elf_m32r_link_hash_table *htab;
1829 struct elf_m32r_link_hash_entry *eh;
1830 struct elf_m32r_dyn_relocs *p;
1831 bfd *dynobj;
1832 asection *s;
6edf0760
NC		 1833
1834#ifdef DEBUG_PIC
47b0e7ad 1835 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1836#endif
41978308 1837
6edf0760 1838 dynobj = elf_hash_table (info)->dynobj;
41978308 1839
6edf0760
NC		 1840 /* Make sure we know what is going on here. */
1841 BFD_ASSERT (dynobj != NULL
f5385ebf 1842 && (h->needs_plt
f6e332e6 1843 || h->u.weakdef != NULL
f5385ebf
AM		 1844 || (h->def_dynamic
1845 && h->ref_regular
1846 && !h->def_regular)));
6edf0760 1847
6edf0760
NC		 1848 /* If this is a function, put it in the procedure linkage table. We
1849 will fill in the contents of the procedure linkage table later,
1850 when we know the address of the .got section. */
1851 if (h->type == STT_FUNC
f5385ebf 1852 || h->needs_plt)
6edf0760
NC		 1853 {
1854 if (! info->shared
f5385ebf
AM		 1855 && !h->def_dynamic
1856 && !h->ref_dynamic
6edf0760
NC		 1857 && h->root.type != bfd_link_hash_undefweak
1858 && h->root.type != bfd_link_hash_undefined)
1859 {
1860 /* This case can occur if we saw a PLT reloc in an input
1861 file, but the symbol was never referred to by a dynamic
1862 object. In such a case, we don't actually need to build
1863 a procedure linkage table, and we can just do a PCREL
1864 reloc instead. */
1865 h->plt.offset = (bfd_vma) -1;
f5385ebf 1866 h->needs_plt = 0;
6edf0760
NC		 1867 }
1868
1869 return TRUE;
1870 }
1871 else
1872 h->plt.offset = (bfd_vma) -1;
41978308 1873
6edf0760
NC		 1874 /* If this is a weak symbol, and there is a real definition, the
1875 processor independent code will have arranged for us to see the
1876 real definition first, and we can just use the same value. */
f6e332e6 1877 if (h->u.weakdef != NULL)
6edf0760 1878 {
f6e332e6
AM		 1879 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1880 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1881 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1882 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6edf0760
NC		 1883 return TRUE;
1884 }
41978308 1885
6edf0760
NC		 1886 /* This is a reference to a symbol defined by a dynamic object which
1887 is not a function. */
41978308 1888
6edf0760
NC		 1889 /* If we are creating a shared library, we must presume that the
1890 only references to the symbol are via the global offset table.
1891 For such cases we need not do anything here; the relocations will
1892 be handled correctly by relocate_section. */
1893 if (info->shared)
1894 return TRUE;
41978308 1895
6edf0760
NC		 1896 /* If there are no references to this symbol that do not use the
1897 GOT, we don't need to generate a copy reloc. */
f5385ebf 1898 if (!h->non_got_ref)
6edf0760
NC		 1899 return TRUE;
1900
1901 /* If -z nocopyreloc was given, we won't generate them either. */
1902 if (info->nocopyreloc)
1903 {
f5385ebf 1904 h->non_got_ref = 0;
6edf0760
NC		 1905 return TRUE;
1906 }
1907
1908 eh = (struct elf_m32r_link_hash_entry *) h;
1909 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1910 {
1911 s = p->sec->output_section;
1912 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1913 break;
1914 }
1915
1916 /* If we didn't find any dynamic relocs in sections which needs the
1917 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1918 the copy reloc. */
1919 if (p == NULL)
1920 {
f5385ebf 1921 h->non_got_ref = 0;
6edf0760
NC		 1922 return TRUE;
1923 }
1924
909272ee
AM		 1925 if (h->size == 0)
1926 {
1927 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1928 h->root.root.string);
1929 return TRUE;
1930 }
1931
6edf0760
NC		 1932 /* We must allocate the symbol in our .dynbss section, which will
1933 become part of the .bss section of the executable. There will be
1934 an entry for this symbol in the .dynsym section. The dynamic
1935 object will contain position independent code, so all references
1936 from the dynamic object to this symbol will go through the global
1937 offset table. The dynamic linker will use the .dynsym entry to
1938 determine the address it must put in the global offset table, so
1939 both the dynamic object and the regular object will refer to the
1940 same memory location for the variable. */
41978308 1941
6edf0760 1942 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1943 if (htab == NULL)
1944 return FALSE;
1945
6edf0760
NC		 1946 s = htab->sdynbss;
1947 BFD_ASSERT (s != NULL);
41978308 1948
6edf0760
NC		 1949 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1950 to copy the initial value out of the dynamic object and into the
1951 runtime process image. We need to remember the offset into the
1952 .rela.bss section we are going to use. */
1953 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1954 {
1955 asection *srel;
41978308 1956
6edf0760
NC		 1957 srel = htab->srelbss;
1958 BFD_ASSERT (srel != NULL);
eea6121a 1959 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1960 h->needs_copy = 1;
6edf0760 1961 }
41978308 1962
027297b7 1963 return _bfd_elf_adjust_dynamic_copy (h, s);
6edf0760
NC		 1964}
1965
6edf0760
NC		 1966/* Allocate space in .plt, .got and associated reloc sections for
1967 dynamic relocs. */
41978308 1968
6edf0760 1969static bfd_boolean
47b0e7ad 1970allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 1971{
1972 struct bfd_link_info *info;
1973 struct elf_m32r_link_hash_table *htab;
1974 struct elf_m32r_link_hash_entry *eh;
1975 struct elf_m32r_dyn_relocs *p;
41978308 1976
6edf0760
NC		 1977 if (h->root.type == bfd_link_hash_indirect)
1978 return TRUE;
41978308 1979
6edf0760
NC		 1980 if (h->root.type == bfd_link_hash_warning)
1981 /* When warning symbols are created, they **replace** the "real"
1982 entry in the hash table, thus we never get to see the real
1983 symbol in a hash traversal. So look at it now. */
1984 h = (struct elf_link_hash_entry *) h->root.u.i.link;
41978308 1985
6edf0760
NC		 1986 info = (struct bfd_link_info *) inf;
1987 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1988 if (htab == NULL)
1989 return FALSE;
41978308 1990
6edf0760 1991 eh = (struct elf_m32r_link_hash_entry *) h;
41978308 1992
6edf0760
NC		 1993 if (htab->root.dynamic_sections_created
1994 && h->plt.refcount > 0)
1995 {
1996 /* Make sure this symbol is output as a dynamic symbol.
1997 Undefined weak syms won't yet be marked as dynamic. */
1998 if (h->dynindx == -1
f5385ebf 1999 && !h->forced_local)
6edf0760 2000 {
c152c796 2001 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2002 return FALSE;
2003 }
41978308 2004
c152c796 2005 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
6edf0760
NC		 2006 {
2007 asection *s = htab->splt;
41978308 2008
6edf0760
NC		 2009 /* If this is the first .plt entry, make room for the special
2010 first entry. */
eea6121a
AM		 2011 if (s->size == 0)
2012 s->size += PLT_ENTRY_SIZE;
41978308 2013
eea6121a 2014 h->plt.offset = s->size;
41978308 2015
6edf0760
NC		 2016 /* If this symbol is not defined in a regular file, and we are
2017 not generating a shared library, then set the symbol to this
2018 location in the .plt. This is required to make function
2019 pointers compare as equal between the normal executable and
2020 the shared library. */
2021 if (! info->shared
f5385ebf 2022 && !h->def_regular)
6edf0760
NC		 2023 {
2024 h->root.u.def.section = s;
2025 h->root.u.def.value = h->plt.offset;
2026 }
41978308 2027
6edf0760 2028 /* Make room for this entry. */
eea6121a 2029 s->size += PLT_ENTRY_SIZE;
41978308 2030
6edf0760
NC		 2031 /* We also need to make an entry in the .got.plt section, which
2032 will be placed in the .got section by the linker script. */
eea6121a 2033 htab->sgotplt->size += 4;
41978308 2034
6edf0760 2035 /* We also need to make an entry in the .rel.plt section. */
eea6121a 2036 htab->srelplt->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2037 }
2038 else
2039 {
2040 h->plt.offset = (bfd_vma) -1;
f5385ebf 2041 h->needs_plt = 0;
6edf0760
NC		 2042 }
2043 }
2044 else
2045 {
2046 h->plt.offset = (bfd_vma) -1;
f5385ebf 2047 h->needs_plt = 0;
6edf0760 2048 }
41978308 2049
6edf0760
NC		 2050 if (h->got.refcount > 0)
2051 {
2052 asection *s;
2053 bfd_boolean dyn;
41978308 2054
6edf0760
NC		 2055 /* Make sure this symbol is output as a dynamic symbol.
2056 Undefined weak syms won't yet be marked as dynamic. */
2057 if (h->dynindx == -1
f5385ebf 2058 && !h->forced_local)
6edf0760 2059 {
c152c796 2060 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2061 return FALSE;
2062 }
41978308 2063
6edf0760
NC		 2064 s = htab->sgot;
2065
eea6121a
AM		 2066 h->got.offset = s->size;
2067 s->size += 4;
6edf0760 2068 dyn = htab->root.dynamic_sections_created;
c152c796 2069 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
eea6121a 2070 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2071 }
2072 else
2073 h->got.offset = (bfd_vma) -1;
41978308 2074
6edf0760
NC		 2075 if (eh->dyn_relocs == NULL)
2076 return TRUE;
41978308 2077
6edf0760
NC		 2078 /* In the shared -Bsymbolic case, discard space allocated for
2079 dynamic pc-relative relocs against symbols which turn out to be
2080 defined in regular objects. For the normal shared case, discard
2081 space for pc-relative relocs that have become local due to symbol
2082 visibility changes. */
2083
2084 if (info->shared)
2085 {
f5385ebf
AM		 2086 if (h->def_regular
2087 && (h->forced_local
6edf0760
NC		 2088 || info->symbolic))
2089 {
2090 struct elf_m32r_dyn_relocs **pp;
47b0e7ad
NC		 2091
2092 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC		 2093 {
2094 p->count -= p->pc_count;
2095 p->pc_count = 0;
2096 if (p->count == 0)
2097 *pp = p->next;
2098 else
2099 pp = &p->next;
2100 }
2101 }
22d606e9
AM		 2102
2103 /* Also discard relocs on undefined weak syms with non-default
2104 visibility. */
2105 if (eh->dyn_relocs != NULL
2106 && h->root.type == bfd_link_hash_undefweak)
2107 {
2108 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2109 eh->dyn_relocs = NULL;
2110
2111 /* Make sure undefined weak symbols are output as a dynamic
2112 symbol in PIEs. */
2113 else if (h->dynindx == -1
2114 && !h->forced_local)
2115 {
2116 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2117 return FALSE;
2118 }
2119 }
6edf0760
NC		 2120 }
2121 else
2122 {
2123 /* For the non-shared case, discard space for relocs against
2124 symbols which turn out to need copy relocs or are not
2125 dynamic. */
41978308 2126
f5385ebf
AM		 2127 if (!h->non_got_ref
2128 && ((h->def_dynamic
2129 && !h->def_regular)
6edf0760
NC		 2130 || (htab->root.dynamic_sections_created
2131 && (h->root.type == bfd_link_hash_undefweak
2132 || h->root.type == bfd_link_hash_undefined))))
2133 {
2134 /* Make sure this symbol is output as a dynamic symbol.
2135 Undefined weak syms won't yet be marked as dynamic. */
2136 if (h->dynindx == -1
f5385ebf 2137 && !h->forced_local)
6edf0760 2138 {
c152c796 2139 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2140 return FALSE;
2141 }
41978308 2142
6edf0760
NC		 2143 /* If that succeeded, we know we'll be keeping all the
2144 relocs. */
2145 if (h->dynindx != -1)
2146 goto keep;
2147 }
41978308 2148
6edf0760 2149 eh->dyn_relocs = NULL;
41978308 2150
6edf0760
NC		 2151 keep: ;
2152 }
41978308 2153
6edf0760
NC		 2154 /* Finally, allocate space. */
2155 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2156 {
2157 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2158 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 2159 }
41978308 2160
6edf0760
NC		 2161 return TRUE;
2162}
47b0e7ad 2163
6edf0760 2164/* Find any dynamic relocs that apply to read-only sections. */
41978308 2165
6edf0760 2166static bfd_boolean
47b0e7ad 2167readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 2168{
2169 struct elf_m32r_link_hash_entry *eh;
2170 struct elf_m32r_dyn_relocs *p;
2171
2172 if (h->root.type == bfd_link_hash_warning)
2173 h = (struct elf_link_hash_entry *) h->root.u.i.link;
252b5132 2174
6edf0760
NC		 2175 eh = (struct elf_m32r_link_hash_entry *) h;
2176 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2177 {
2178 asection *s = p->sec->output_section;
252b5132 2179
6edf0760
NC		 2180 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2181 {
2182 struct bfd_link_info *info = (struct bfd_link_info *) inf;
252b5132 2183
6edf0760 2184 info->flags |= DF_TEXTREL;
252b5132 2185
6edf0760
NC		 2186 /* Not an error, just cut short the traversal. */
2187 return FALSE;
2188 }
252b5132 2189 }
6edf0760
NC		 2190 return TRUE;
2191}
252b5132 2192
6edf0760 2193/* Set the sizes of the dynamic sections. */
41978308 2194
6edf0760 2195static bfd_boolean
47b0e7ad
NC		 2196m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2197 struct bfd_link_info *info)
6edf0760
NC		 2198{
2199 struct elf_m32r_link_hash_table *htab;
2200 bfd *dynobj;
2201 asection *s;
2202 bfd_boolean relocs;
2203 bfd *ibfd;
2204
2205#ifdef DEBUG_PIC
47b0e7ad 2206 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC		 2207#endif
2208
2209 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 2210 if (htab == NULL)
2211 return FALSE;
2212
6edf0760
NC		 2213 dynobj = htab->root.dynobj;
2214 BFD_ASSERT (dynobj != NULL);
2215
2216 if (htab->root.dynamic_sections_created)
252b5132 2217 {
6edf0760 2218 /* Set the contents of the .interp section to the interpreter. */
80447b21 2219 if (info->executable)
6edf0760
NC		 2220 {
2221 s = bfd_get_section_by_name (dynobj, ".interp");
2222 BFD_ASSERT (s != NULL);
eea6121a 2223 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC		 2224 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2225 }
252b5132
RH		 2226 }
2227
6edf0760
NC		 2228 /* Set up .got offsets for local syms, and space for local dynamic
2229 relocs. */
2230 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2231 {
2232 bfd_signed_vma *local_got;
2233 bfd_signed_vma *end_local_got;
2234 bfd_size_type locsymcount;
2235 Elf_Internal_Shdr *symtab_hdr;
2236 asection *srel;
252b5132 2237
6edf0760
NC		 2238 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2239 continue;
252b5132 2240
6edf0760
NC		 2241 for (s = ibfd->sections; s != NULL; s = s->next)
2242 {
2243 struct elf_m32r_dyn_relocs *p;
2244
2245 for (p = ((struct elf_m32r_dyn_relocs *)
2246 elf_section_data (s)->local_dynrel);
2247 p != NULL;
2248 p = p->next)
2249 {
2250 if (! bfd_is_abs_section (p->sec)
2251 && bfd_is_abs_section (p->sec->output_section))
2252 {
2253 /* Input section has been discarded, either because
2254 it is a copy of a linkonce section or due to
2255 linker script /DISCARD/, so we'll be discarding
2256 the relocs too. */
2257 }
2258 else if (p->count != 0)
2259 {
2260 srel = elf_section_data (p->sec)->sreloc;
eea6121a 2261 srel->size += p->count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2262 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2263 info->flags |= DF_TEXTREL;
2264 }
2265 }
2266 }
2267
2268 local_got = elf_local_got_refcounts (ibfd);
2269 if (!local_got)
2270 continue;
2271
2272 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2273 locsymcount = symtab_hdr->sh_info;
2274 end_local_got = local_got + locsymcount;
2275 s = htab->sgot;
2276 srel = htab->srelgot;
2277 for (; local_got < end_local_got; ++local_got)
2278 {
2279 if (*local_got > 0)
2280 {
eea6121a
AM		 2281 *local_got = s->size;
2282 s->size += 4;
6edf0760 2283 if (info->shared)
eea6121a 2284 srel->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2285 }
2286 else
2287 *local_got = (bfd_vma) -1;
2288 }
2289 }
2290
2291 /* Allocate global sym .plt and .got entries, and space for global
2292 sym dynamic relocs. */
47b0e7ad 2293 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC		 2294
2295 /* We now have determined the sizes of the various dynamic sections.
2296 Allocate memory for them. */
2297 relocs = FALSE;
2298 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2299 {
6edf0760
NC		 2300 if ((s->flags & SEC_LINKER_CREATED) == 0)
2301 continue;
252b5132 2302
6edf0760
NC		 2303 if (s == htab->splt
2304 || s == htab->sgot
c456f082
AM		 2305 || s == htab->sgotplt
2306 || s == htab->sdynbss)
6edf0760
NC		 2307 {
2308 /* Strip this section if we don't need it; see the
2309 comment below. */
2310 }
0112cd26 2311 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
6edf0760 2312 {
eea6121a 2313 if (s->size != 0 && s != htab->srelplt)
6edf0760
NC		 2314 relocs = TRUE;
2315
2316 /* We use the reloc_count field as a counter if we need
2317 to copy relocs into the output file. */
2318 s->reloc_count = 0;
2319 }
252b5132 2320 else
47b0e7ad
NC		 2321 /* It's not one of our sections, so don't allocate space. */
2322 continue;
6edf0760 2323
eea6121a 2324 if (s->size == 0)
6edf0760
NC		 2325 {
2326 /* If we don't need this section, strip it from the
2327 output file. This is mostly to handle .rela.bss and
2328 .rela.plt. We must create both sections in
2329 create_dynamic_sections, because they must be created
2330 before the linker maps input sections to output
2331 sections. The linker does that before
2332 adjust_dynamic_symbol is called, and it is that
2333 function which decides whether anything needs to go
2334 into these sections. */
8423293d 2335 s->flags |= SEC_EXCLUDE;
6edf0760
NC		 2336 continue;
2337 }
2338
c456f082
AM		 2339 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2340 continue;
2341
6edf0760
NC		 2342 /* Allocate memory for the section contents. We use bfd_zalloc
2343 here in case unused entries are not reclaimed before the
2344 section's contents are written out. This should not happen,
2345 but this way if it does, we get a R_M32R_NONE reloc instead
2346 of garbage. */
47b0e7ad 2347 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760
NC		 2348 if (s->contents == NULL)
2349 return FALSE;
2350 }
2351
2352 if (htab->root.dynamic_sections_created)
2353 {
2354 /* Add some entries to the .dynamic section. We fill in the
2355 values later, in m32r_elf_finish_dynamic_sections, but we
2356 must add the entries now so that we get the correct size for
2357 the .dynamic section. The DT_DEBUG entry is filled in by the
2358 dynamic linker and used by the debugger. */
2359#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2360 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6edf0760 2361
80447b21 2362 if (info->executable)
252b5132 2363 {
6edf0760
NC		 2364 if (! add_dynamic_entry (DT_DEBUG, 0))
2365 return FALSE;
252b5132 2366 }
6edf0760 2367
eea6121a 2368 if (htab->splt->size != 0)
6edf0760
NC		 2369 {
2370 if (! add_dynamic_entry (DT_PLTGOT, 0)
2371 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2372 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2373 || ! add_dynamic_entry (DT_JMPREL, 0))
2374 return FALSE;
2375 }
2376
2377 if (relocs)
2378 {
2379 if (! add_dynamic_entry (DT_RELA, 0)
2380 || ! add_dynamic_entry (DT_RELASZ, 0)
2381 || ! add_dynamic_entry (DT_RELAENT,
2382 sizeof (Elf32_External_Rela)))
2383 return FALSE;
2384
2385 /* If any dynamic relocs apply to a read-only section,
2386 then we need a DT_TEXTREL entry. */
2387 if ((info->flags & DF_TEXTREL) == 0)
2388 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
47b0e7ad 2389 info);
6edf0760
NC		 2390
2391 if ((info->flags & DF_TEXTREL) != 0)
2392 {
2393 if (! add_dynamic_entry (DT_TEXTREL, 0))
2394 return FALSE;
2395 }
2396 }
252b5132 2397 }
6edf0760
NC		 2398#undef add_dynamic_entry
2399
2400 return TRUE;
252b5132 2401}
47b0e7ad 2402
252b5132
RH		 2403/* Relocate an M32R/D ELF section.
2404 There is some attempt to make this function usable for many architectures,
f0fe0e16 2405 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH		 2406
2407 The RELOCATE_SECTION function is called by the new ELF backend linker
2408 to handle the relocations for a section.
2409
2410 The relocs are always passed as Rela structures; if the section
2411 actually uses Rel structures, the r_addend field will always be
2412 zero.
2413
2414 This function is responsible for adjust the section contents as
2415 necessary, and (if using Rela relocs and generating a
1049f94e 2416 relocatable output file) adjusting the reloc addend as
252b5132
RH		 2417 necessary.
2418
2419 This function does not have to worry about setting the reloc
2420 address or the reloc symbol index.
2421
2422 LOCAL_SYMS is a pointer to the swapped in local symbols.
2423
2424 LOCAL_SECTIONS is an array giving the section in the input file
2425 corresponding to the st_shndx field of each local symbol.
2426
2427 The global hash table entry for the global symbols can be found
2428 via elf_sym_hashes (input_bfd).
2429
1049f94e 2430 When generating relocatable output, this function must handle
252b5132
RH		 2431 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2432 going to be the section symbol corresponding to the output
2433 section, which means that the addend must be adjusted
2434 accordingly. */
2435
b34976b6 2436static bfd_boolean
47b0e7ad
NC		 2437m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2438 struct bfd_link_info *info,
2439 bfd *input_bfd,
2440 asection *input_section,
2441 bfd_byte *contents,
2442 Elf_Internal_Rela *relocs,
2443 Elf_Internal_Sym *local_syms,
2444 asection **local_sections)
252b5132
RH		 2445{
2446 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2447 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2448 Elf_Internal_Rela *rel, *relend;
2449 /* Assume success. */
b34976b6 2450 bfd_boolean ret = TRUE;
6edf0760
NC		 2451 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2452 bfd *dynobj;
2453 bfd_vma *local_got_offsets;
2454 asection *sgot, *splt, *sreloc;
07515404 2455 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760 2456
4dfe6ac6
NC		 2457 if (htab == NULL)
2458 return FALSE;
2459
6edf0760
NC		 2460 dynobj = htab->root.dynobj;
2461 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2462
6edf0760
NC		 2463 sgot = htab->sgot;
2464 splt = htab->splt;
2465 sreloc = NULL;
b491616a 2466
252b5132
RH		 2467 rel = relocs;
2468 relend = relocs + input_section->reloc_count;
2469 for (; rel < relend; rel++)
2470 {
2471 int r_type;
2472 reloc_howto_type *howto;
2473 unsigned long r_symndx;
6edf0760 2474 struct elf_link_hash_entry *h;
252b5132 2475 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
6edf0760
NC		 2476 ensure it's zero (we use REL relocs, not RELA). Therefore this
2477 should be assigning zero to `addend', but for clarity we use
2478 `r_addend'. */
252b5132
RH		 2479 bfd_vma addend = rel->r_addend;
2480 bfd_vma offset = rel->r_offset;
ab96bf03 2481 bfd_vma relocation;
252b5132
RH		 2482 Elf_Internal_Sym *sym;
2483 asection *sec;
2484 const char *sym_name;
2485 bfd_reloc_status_type r;
2486 const char *errmsg = NULL;
6edf0760 2487 bfd_boolean use_rel = FALSE;
252b5132
RH		 2488
2489 h = NULL;
2490 r_type = ELF32_R_TYPE (rel->r_info);
2491 if (r_type < 0 || r_type >= (int) R_M32R_max)
2492 {
d003868e
AM		 2493 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2494 input_bfd,
252b5132
RH		 2495 (int) r_type);
2496 bfd_set_error (bfd_error_bad_value);
b34976b6 2497 ret = FALSE;
252b5132
RH		 2498 continue;
2499 }
2500
47b0e7ad 2501 if ( r_type == R_M32R_GNU_VTENTRY
6edf0760
NC		 2502 || r_type == R_M32R_GNU_VTINHERIT
2503 || r_type == R_M32R_NONE
2504 || r_type == R_M32R_RELA_GNU_VTENTRY
2505 || r_type == R_M32R_RELA_GNU_VTINHERIT)
252b5132
RH		 2506 continue;
2507
6edf0760
NC		 2508 if (r_type <= R_M32R_GNU_VTENTRY)
2509 use_rel = TRUE;
2510
252b5132
RH		 2511 howto = m32r_elf_howto_table + r_type;
2512 r_symndx = ELF32_R_SYM (rel->r_info);
2513
ab96bf03
AM		 2514 sym = NULL;
2515 sec = NULL;
2516 h = NULL;
2517
2518 if (r_symndx < symtab_hdr->sh_info)
2519 {
2520 /* Local symbol. */
2521 sym = local_syms + r_symndx;
2522 sec = local_sections[r_symndx];
2523 sym_name = "<local symbol>";
2524
2525 if (!use_rel)
2526 {
2527 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2528 addend = rel->r_addend;
2529 }
2530 else
2531 {
2532 relocation = (sec->output_section->vma
2533 + sec->output_offset
2534 + sym->st_value);
2535 }
2536 }
2537 else
2538 {
2539 /* External symbol. */
2540 relocation = 0;
2541
2542 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2543 while (h->root.type == bfd_link_hash_indirect
2544 || h->root.type == bfd_link_hash_warning)
2545 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2546 sym_name = h->root.root.string;
2547
2548 if (h->root.type == bfd_link_hash_defined
2549 || h->root.type == bfd_link_hash_defweak)
2550 {
2551 bfd_boolean dyn;
2552 sec = h->root.u.def.section;
2553
2554 dyn = htab->root.dynamic_sections_created;
2555 sec = h->root.u.def.section;
2556 if (r_type == R_M32R_GOTPC24
2557 || (r_type == R_M32R_GOTPC_HI_ULO
2558 || r_type == R_M32R_GOTPC_HI_SLO
2559 || r_type == R_M32R_GOTPC_LO)
2560 || (r_type == R_M32R_26_PLTREL
2561 && h->plt.offset != (bfd_vma) -1)
2562 || ((r_type == R_M32R_GOT24
2563 || r_type == R_M32R_GOT16_HI_ULO
2564 || r_type == R_M32R_GOT16_HI_SLO
2565 || r_type == R_M32R_GOT16_LO)
2566 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2567 info->shared, h)
2568 && (! info->shared
2569 || (! info->symbolic && h->dynindx != -1)
2570 || !h->def_regular))
2571 || (info->shared
2572 && ((! info->symbolic && h->dynindx != -1)
2573 || !h->def_regular)
2574 && (((r_type == R_M32R_16_RELA
2575 || r_type == R_M32R_32_RELA
2576 || r_type == R_M32R_24_RELA
2577 || r_type == R_M32R_HI16_ULO_RELA
2578 || r_type == R_M32R_HI16_SLO_RELA
2579 || r_type == R_M32R_LO16_RELA)
2580 && !h->forced_local)
2581 || r_type == R_M32R_REL32
2582 || r_type == R_M32R_10_PCREL_RELA
2583 || r_type == R_M32R_18_PCREL_RELA
2584 || r_type == R_M32R_26_PCREL_RELA)
2585 && ((input_section->flags & SEC_ALLOC) != 0
2586 /* DWARF will emit R_M32R_16(24,32) relocations
2587 in its sections against symbols defined
2588 externally in shared libraries. We can't do
2589 anything with them here. */
2590 || ((input_section->flags & SEC_DEBUGGING) != 0
2591 && h->def_dynamic))))
2592 {
2593 /* In these cases, we don't need the relocation
2594 value. We check specially because in some
2595 obscure cases sec->output_section will be NULL. */
2596 }
2597 else if (sec->output_section != NULL)
2598 relocation = (h->root.u.def.value
2599 + sec->output_section->vma
2600 + sec->output_offset);
2601 else if (!info->relocatable)
2602 {
2603 (*_bfd_error_handler)
2604 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2605 input_bfd,
2606 input_section,
2607 (long) rel->r_offset,
2608 howto->name,
2609 h->root.root.string);
2610 }
2611 }
2612 else if (h->root.type == bfd_link_hash_undefweak)
2613 ;
2614 else if (info->unresolved_syms_in_objects == RM_IGNORE
2615 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2616 ;
2617 else if (!info->relocatable)
2618 {
2619 if (! ((*info->callbacks->undefined_symbol)
2620 (info, h->root.root.string, input_bfd,
2621 input_section, offset,
2622 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2623 || ELF_ST_VISIBILITY (h->other)))))
2624 return FALSE;
2625 }
2626 }
2627
2628 if (sec != NULL && elf_discarded_section (sec))
e4067dbb
DJ		 2629 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2630 rel, relend, howto, contents);
ab96bf03
AM		 2631
2632 if (info->relocatable && !use_rel)
252b5132 2633 {
1049f94e 2634 /* This is a relocatable link. We don't have to change
252b5132
RH		 2635 anything, unless the reloc is against a section symbol,
2636 in which case we have to adjust according to where the
2637 section symbol winds up in the output section. */
ab96bf03
AM		 2638 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2639 rel->r_addend += sec->output_offset;
2640 continue;
2641 }
252b5132 2642
ab96bf03
AM		 2643 if (info->relocatable && use_rel)
2644 {
2645 /* This is a relocatable link. We don't have to change
2646 anything, unless the reloc is against a section symbol,
2647 in which case we have to adjust according to where the
2648 section symbol winds up in the output section. */
2649 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2650 continue;
252b5132 2651
ab96bf03 2652 addend += sec->output_offset;
252b5132 2653
252b5132
RH		 2654 /* If partial_inplace, we need to store any additional addend
2655 back in the section. */
2656 if (! howto->partial_inplace)
2657 continue;
2658 /* ??? Here is a nice place to call a special_function
2659 like handler. */
2660 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2661 r = _bfd_relocate_contents (howto, input_bfd,
2662 addend, contents + offset);
2663 else
2664 {
2665 Elf_Internal_Rela *lorel;
2666
2667 /* We allow an arbitrary number of HI16 relocs before the
2668 LO16 reloc. This permits gcc to emit the HI and LO relocs
2669 itself. */
2670 for (lorel = rel + 1;
2671 (lorel < relend
2672 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2673 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2674 lorel++)
2675 continue;
2676 if (lorel < relend
2677 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2678 {
2679 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2680 contents, addend);
2681 r = bfd_reloc_ok;
2682 }
2683 else
2684 r = _bfd_relocate_contents (howto, input_bfd,
2685 addend, contents + offset);
2686 }
252b5132
RH		 2687 }
2688 else
2689 {
252b5132 2690 /* Sanity check the address. */
07515404 2691 if (offset > high_address)
252b5132
RH		 2692 {
2693 r = bfd_reloc_outofrange;
2694 goto check_reloc;
2695 }
2696
2697 switch ((int) r_type)
2698 {
097f809a
NC		 2699 case R_M32R_GOTOFF:
2700 /* Relocation is relative to the start of the global offset
2701 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2702
097f809a
NC		 2703 ld24 rx. #label@GOTOFF + addend
2704 sub rx, r12. */
2705
2706 BFD_ASSERT (sgot != NULL);
2707
2708 relocation = -(relocation - sgot->output_section->vma);
2709 rel->r_addend = -rel->r_addend;
2710 break;
2711
2712 case R_M32R_GOTOFF_HI_ULO:
2713 case R_M32R_GOTOFF_HI_SLO:
2714 case R_M32R_GOTOFF_LO:
2715 BFD_ASSERT (sgot != NULL);
2716
2717 relocation -= sgot->output_section->vma;
2718
2719 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2720 && ((relocation + rel->r_addend) & 0x8000))
2721 rel->r_addend += 0x10000;
2722 break;
2723
6edf0760
NC		 2724 case R_M32R_GOTPC24:
2725 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2726 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2727 */
2728 relocation = sgot->output_section->vma;
2729 break;
2730
2731 case R_M32R_GOTPC_HI_ULO:
2732 case R_M32R_GOTPC_HI_SLO:
41978308 2733 case R_M32R_GOTPC_LO:
6edf0760
NC		 2734 {
2735 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2736 bl .+4
2737 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2738 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2739 or
2740 bl .+4
2741 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2742 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2743 */
2744 relocation = sgot->output_section->vma;
2745 relocation -= (input_section->output_section->vma
2746 + input_section->output_offset
2747 + rel->r_offset);
41978308 2748 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC		 2749 && ((relocation + rel->r_addend) & 0x8000))
2750 rel->r_addend += 0x10000;
2751
2752 break;
2753 }
2754 case R_M32R_GOT16_HI_ULO:
2755 case R_M32R_GOT16_HI_SLO:
41978308 2756 case R_M32R_GOT16_LO:
6edf0760
NC		 2757 /* Fall through. */
2758 case R_M32R_GOT24:
2759 /* Relocation is to the entry for this symbol in the global
2760 offset table. */
2761 BFD_ASSERT (sgot != NULL);
41978308 2762
6edf0760
NC		 2763 if (h != NULL)
2764 {
2765 bfd_boolean dyn;
2766 bfd_vma off;
41978308 2767
6edf0760
NC		 2768 off = h->got.offset;
2769 BFD_ASSERT (off != (bfd_vma) -1);
2770
2771 dyn = htab->root.dynamic_sections_created;
c152c796 2772 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6edf0760
NC		 2773 || (info->shared
2774 && (info->symbolic
2775 || h->dynindx == -1
f5385ebf
AM		 2776 || h->forced_local)
2777 && h->def_regular))
6edf0760
NC		 2778 {
2779 /* This is actually a static link, or it is a
2780 -Bsymbolic link and the symbol is defined
2781 locally, or the symbol was forced to be local
2782 because of a version file. We must initialize
2783 this entry in the global offset table. Since the
2784 offset must always be a multiple of 4, we use the
2785 least significant bit to record whether we have
2786 initialized it already.
41978308 2787
6edf0760
NC		 2788 When doing a dynamic link, we create a .rela.got
2789 relocation entry to initialize the value. This
2790 is done in the finish_dynamic_symbol routine. */
2791 if ((off & 1) != 0)
2792 off &= ~1;
2793 else
2794 {
2795 bfd_put_32 (output_bfd, relocation,
2796 sgot->contents + off);
2797 h->got.offset |= 1;
2798 }
2799 }
41978308 2800
6edf0760
NC		 2801 relocation = sgot->output_offset + off;
2802 }
2803 else
2804 {
2805 bfd_vma off;
2806 bfd_byte *loc;
41978308 2807
6edf0760
NC		 2808 BFD_ASSERT (local_got_offsets != NULL
2809 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2810
6edf0760 2811 off = local_got_offsets[r_symndx];
41978308 2812
6edf0760
NC		 2813 /* The offset must always be a multiple of 4. We use
2814 the least significant bit to record whether we have
2815 already processed this entry. */
2816 if ((off & 1) != 0)
2817 off &= ~1;
2818 else
2819 {
2820 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2821
6edf0760
NC		 2822 if (info->shared)
2823 {
2824 asection *srelgot;
2825 Elf_Internal_Rela outrel;
41978308 2826
6edf0760
NC		 2827 /* We need to generate a R_M32R_RELATIVE reloc
2828 for the dynamic linker. */
2829 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2830 BFD_ASSERT (srelgot != NULL);
41978308 2831
6edf0760
NC		 2832 outrel.r_offset = (sgot->output_section->vma
2833 + sgot->output_offset
2834 + off);
2835 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2836 outrel.r_addend = relocation;
2837 loc = srelgot->contents;
47b0e7ad 2838 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2839 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2840 ++srelgot->reloc_count;
2841 }
41978308 2842
6edf0760
NC		 2843 local_got_offsets[r_symndx] |= 1;
2844 }
41978308 2845
6edf0760
NC		 2846 relocation = sgot->output_offset + off;
2847 }
2848 if ((r_type == R_M32R_GOT16_HI_SLO)
2849 && ((relocation + rel->r_addend) & 0x8000))
2850 rel->r_addend += 0x10000;
2851
2852 break;
41978308 2853
6edf0760
NC		 2854 case R_M32R_26_PLTREL:
2855 /* Relocation is to the entry for this symbol in the
2856 procedure linkage table. */
41978308 2857
6edf0760
NC		 2858 /* The native assembler will generate a 26_PLTREL reloc
2859 for a local symbol if you assemble a call from one
2860 section to another when using -K pic. */
2861 if (h == NULL)
2862 break;
2863
f5385ebf 2864 if (h->forced_local)
6edf0760
NC		 2865 break;
2866
2867 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC		 2868 /* We didn't make a PLT entry for this symbol. This
2869 happens when statically linking PIC code, or when
2870 using -Bsymbolic. */
2871 break;
41978308 2872
6edf0760
NC		 2873 relocation = (splt->output_section->vma
2874 + splt->output_offset
2875 + h->plt.offset);
2876 break;
41978308 2877
6edf0760 2878 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC		 2879 if ((relocation + rel->r_addend) & 0x8000)
2880 rel->r_addend += 0x10000;
6edf0760 2881 /* Fall through. */
47b0e7ad 2882
6edf0760
NC		 2883 case R_M32R_16_RELA:
2884 case R_M32R_24_RELA:
2885 case R_M32R_32_RELA:
157e7bd1 2886 case R_M32R_REL32:
8ce757c4 2887 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 2888 case R_M32R_18_PCREL_RELA:
2889 case R_M32R_26_PCREL_RELA:
2890 case R_M32R_HI16_ULO_RELA:
2891 case R_M32R_LO16_RELA:
6edf0760 2892 if (info->shared
cf35638d 2893 && r_symndx != STN_UNDEF
6edf0760 2894 && (input_section->flags & SEC_ALLOC) != 0
8ce757c4
NC		 2895 && (( r_type != R_M32R_10_PCREL_RELA
2896 && r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC		 2897 && r_type != R_M32R_26_PCREL_RELA
2898 && r_type != R_M32R_REL32)
6edf0760
NC		 2899 || (h != NULL
2900 && h->dynindx != -1
2901 && (! info->symbolic
f5385ebf 2902 || !h->def_regular))))
6edf0760
NC		 2903 {
2904 Elf_Internal_Rela outrel;
2905 bfd_boolean skip, relocate;
2906 bfd_byte *loc;
41978308 2907
6edf0760
NC		 2908 /* When generating a shared object, these relocations
2909 are copied into the output file to be resolved at run
2910 time. */
6edf0760
NC		 2911 if (sreloc == NULL)
2912 {
83bac4b0
NC		 2913 sreloc = _bfd_elf_get_dynamic_reloc_section
2914 (input_bfd, input_section, /*rela?*/ TRUE);
2915 if (sreloc == NULL)
2916 return FALSE;
6edf0760 2917 }
41978308 2918
6edf0760
NC		 2919 skip = FALSE;
2920 relocate = FALSE;
41978308 2921
6edf0760
NC		 2922 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2923 info,
2924 input_section,
2925 rel->r_offset);
2926 if (outrel.r_offset == (bfd_vma) -1)
2927 skip = TRUE;
2928 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2929 skip = relocate = TRUE;
6edf0760
NC		 2930 outrel.r_offset += (input_section->output_section->vma
2931 + input_section->output_offset);
41978308 2932
6edf0760
NC		 2933 if (skip)
2934 memset (&outrel, 0, sizeof outrel);
8ce757c4
NC		 2935 else if ( r_type == R_M32R_10_PCREL_RELA
2936 || r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC		 2937 || r_type == R_M32R_26_PCREL_RELA
2938 || r_type == R_M32R_REL32)
6edf0760
NC		 2939 {
2940 BFD_ASSERT (h != NULL && h->dynindx != -1);
2941 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2942 outrel.r_addend = rel->r_addend;
2943 }
2944 else
2945 {
2946 /* h->dynindx may be -1 if this symbol was marked to
2947 become local. */
2948 if (h == NULL
2949 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2950 && h->def_regular))
6edf0760
NC		 2951 {
2952 relocate = TRUE;
2953 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2954 outrel.r_addend = relocation + rel->r_addend;
2955 }
2956 else
2957 {
2958 BFD_ASSERT (h->dynindx != -1);
2959 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2960 outrel.r_addend = relocation + rel->r_addend;
2961 }
2962 }
2963
2964 loc = sreloc->contents;
47b0e7ad 2965 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2966 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2967 ++sreloc->reloc_count;
2968
2969 /* If this reloc is against an external symbol, we do
2970 not want to fiddle with the addend. Otherwise, we
2971 need to include the symbol value so that it becomes
2972 an addend for the dynamic reloc. */
2973 if (! relocate)
2974 continue;
8ce757c4 2975 break;
6edf0760 2976 }
8ce757c4
NC		 2977 else if (r_type != R_M32R_10_PCREL_RELA)
2978 break;
2979 /* Fall through. */
41978308 2980
252b5132
RH		 2981 case (int) R_M32R_10_PCREL :
2982 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2983 contents, offset,
2984 sec, relocation, addend);
6edf0760 2985 goto check_reloc;
252b5132
RH		 2986
2987 case (int) R_M32R_HI16_SLO :
2988 case (int) R_M32R_HI16_ULO :
2989 {
2990 Elf_Internal_Rela *lorel;
2991
2992 /* We allow an arbitrary number of HI16 relocs before the
2993 LO16 reloc. This permits gcc to emit the HI and LO relocs
2994 itself. */
2995 for (lorel = rel + 1;
2996 (lorel < relend
2997 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2998 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2999 lorel++)
3000 continue;
3001 if (lorel < relend
3002 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3003 {
3004 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3005 contents, relocation + addend);
3006 r = bfd_reloc_ok;
3007 }
3008 else
3009 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3010 contents, offset,
3011 relocation, addend);
3012 }
6edf0760
NC		 3013
3014 goto check_reloc;
252b5132 3015
af705ba8 3016 case (int) R_M32R_SDA16_RELA:
252b5132
RH		 3017 case (int) R_M32R_SDA16 :
3018 {
3019 const char *name;
3020
3021 BFD_ASSERT (sec != NULL);
3022 name = bfd_get_section_name (abfd, sec);
3023
47b0e7ad 3024 if ( strcmp (name, ".sdata") == 0
252b5132
RH		 3025 || strcmp (name, ".sbss") == 0
3026 || strcmp (name, ".scommon") == 0)
3027 {
3028 bfd_vma sda_base;
3029 bfd *out_bfd = sec->output_section->owner;
3030
3031 r = m32r_elf_final_sda_base (out_bfd, info,
3032 &errmsg,
3033 &sda_base);
3034 if (r != bfd_reloc_ok)
3035 {
b34976b6 3036 ret = FALSE;
252b5132
RH		 3037 goto check_reloc;
3038 }
3039
3040 /* At this point `relocation' contains the object's
3041 address. */
3042 relocation -= sda_base;
3043 /* Now it contains the offset from _SDA_BASE_. */
3044 }
3045 else
3046 {
8f615d07 3047 (*_bfd_error_handler)
d003868e
AM		 3048 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3049 input_bfd,
3050 sec,
8f615d07 3051 sym_name,
d003868e 3052 m32r_elf_howto_table[(int) r_type].name);
252b5132 3053 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3054 ret = FALSE;
252b5132
RH		 3055 continue;
3056 }
3057 }
47b0e7ad 3058 /* Fall through. */
6edf0760
NC		 3059
3060 default : /* OLD_M32R_RELOC */
252b5132 3061
252b5132
RH		 3062 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3063 contents, offset,
3064 relocation, addend);
6edf0760 3065 goto check_reloc;
252b5132 3066 }
6edf0760
NC		 3067
3068 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3069 contents, rel->r_offset,
3070 relocation, rel->r_addend);
3071
252b5132
RH		 3072 }
3073
3074 check_reloc:
3075
3076 if (r != bfd_reloc_ok)
3077 {
3078 /* FIXME: This should be generic enough to go in a utility. */
3079 const char *name;
3080
3081 if (h != NULL)
3082 name = h->root.root.string;
3083 else
3084 {
3085 name = (bfd_elf_string_from_elf_section
3086 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3087 if (name == NULL || *name == '\0')
3088 name = bfd_section_name (input_bfd, sec);
3089 }
3090
3091 if (errmsg != NULL)
3092 goto common_error;
3093
3094 switch (r)
3095 {
3096 case bfd_reloc_overflow:
3097 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L		 3098 (info, (h ? &h->root : NULL), name, howto->name,
3099 (bfd_vma) 0, input_bfd, input_section, offset)))
b34976b6 3100 return FALSE;
252b5132
RH		 3101 break;
3102
3103 case bfd_reloc_undefined:
3104 if (! ((*info->callbacks->undefined_symbol)
3105 (info, name, input_bfd, input_section,
b34976b6
AM		 3106 offset, TRUE)))
3107 return FALSE;
252b5132
RH		 3108 break;
3109
3110 case bfd_reloc_outofrange:
3111 errmsg = _("internal error: out of range error");
3112 goto common_error;
3113
3114 case bfd_reloc_notsupported:
3115 errmsg = _("internal error: unsupported relocation error");
3116 goto common_error;
3117
3118 case bfd_reloc_dangerous:
3119 errmsg = _("internal error: dangerous error");
3120 goto common_error;
3121
3122 default:
3123 errmsg = _("internal error: unknown error");
3124 /* fall through */
3125
3126 common_error:
3127 if (!((*info->callbacks->warning)
3128 (info, errmsg, name, input_bfd, input_section,
3129 offset)))
b34976b6 3130 return FALSE;
252b5132
RH		 3131 break;
3132 }
3133 }
3134 }
3135
3136 return ret;
3137}
6edf0760
NC		 3138
3139/* Finish up dynamic symbol handling. We set the contents of various
3140 dynamic sections here. */
47b0e7ad 3141
6edf0760 3142static bfd_boolean
47b0e7ad
NC		 3143m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3144 struct bfd_link_info *info,
3145 struct elf_link_hash_entry *h,
3146 Elf_Internal_Sym *sym)
6edf0760
NC		 3147{
3148 struct elf_m32r_link_hash_table *htab;
6edf0760 3149 bfd_byte *loc;
41978308 3150
6edf0760 3151#ifdef DEBUG_PIC
47b0e7ad 3152 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3153#endif
41978308 3154
6edf0760 3155 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3156 if (htab == NULL)
3157 return FALSE;
3158
6edf0760
NC		 3159 if (h->plt.offset != (bfd_vma) -1)
3160 {
3161 asection *splt;
3162 asection *sgot;
3163 asection *srela;
3164
3165 bfd_vma plt_index;
3166 bfd_vma got_offset;
3167 Elf_Internal_Rela rela;
41978308 3168
6edf0760
NC		 3169 /* This symbol has an entry in the procedure linkage table. Set
3170 it up. */
41978308 3171
6edf0760 3172 BFD_ASSERT (h->dynindx != -1);
41978308 3173
6edf0760
NC		 3174 splt = htab->splt;
3175 sgot = htab->sgotplt;
3176 srela = htab->srelplt;
3177 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3178
3179 /* Get the index in the procedure linkage table which
3180 corresponds to this symbol. This is the index of this symbol
3181 in all the symbols for which we are making plt entries. The
3182 first entry in the procedure linkage table is reserved. */
3183 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3184
3185 /* Get the offset into the .got table of the entry that
3186 corresponds to this function. Each .got entry is 4 bytes.
3187 The first three are reserved. */
3188 got_offset = (plt_index + 3) * 4;
3189
3190 /* Fill in the entry in the procedure linkage table. */
3191 if (! info->shared)
3192 {
3193 bfd_put_32 (output_bfd,
3194 (PLT_ENTRY_WORD0b
3195 + (((sgot->output_section->vma
3196 + sgot->output_offset
3197 + got_offset) >> 16) & 0xffff)),
3198 splt->contents + h->plt.offset);
3199 bfd_put_32 (output_bfd,
3200 (PLT_ENTRY_WORD1b
3201 + ((sgot->output_section->vma
3202 + sgot->output_offset
3203 + got_offset) & 0xffff)),
3204 splt->contents + h->plt.offset + 4);
3205 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3206 splt->contents + h->plt.offset + 8);
3207 bfd_put_32 (output_bfd,
3208 (PLT_ENTRY_WORD3
3209 + plt_index * sizeof (Elf32_External_Rela)),
3210 splt->contents + h->plt.offset + 12);
3211 bfd_put_32 (output_bfd,
3212 (PLT_ENTRY_WORD4
3213 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3214 splt->contents + h->plt.offset + 16);
3215 }
3216 else
3217 {
3218 bfd_put_32 (output_bfd,
3219 PLT_ENTRY_WORD0 + got_offset,
3220 splt->contents + h->plt.offset);
3221 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3222 splt->contents + h->plt.offset + 4);
3223 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3224 splt->contents + h->plt.offset + 8);
3225 bfd_put_32 (output_bfd,
3226 (PLT_ENTRY_WORD3
3227 + plt_index * sizeof (Elf32_External_Rela)),
3228 splt->contents + h->plt.offset + 12);
3229 bfd_put_32 (output_bfd,
3230 (PLT_ENTRY_WORD4
3231 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3232 splt->contents + h->plt.offset + 16);
3233 }
41978308 3234
6edf0760
NC		 3235 /* Fill in the entry in the global offset table. */
3236 bfd_put_32 (output_bfd,
3237 (splt->output_section->vma
3238 + splt->output_offset
3239 + h->plt.offset
3240 + 12), /* same offset */
3241 sgot->contents + got_offset);
3242
3243 /* Fill in the entry in the .rela.plt section. */
3244 rela.r_offset = (sgot->output_section->vma
3245 + sgot->output_offset
3246 + got_offset);
3247 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3248 rela.r_addend = 0;
3249 loc = srela->contents;
47b0e7ad 3250 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3251 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3252
f5385ebf 3253 if (!h->def_regular)
6edf0760
NC		 3254 {
3255 /* Mark the symbol as undefined, rather than as defined in
3256 the .plt section. Leave the value alone. */
3257 sym->st_shndx = SHN_UNDEF;
3258 }
3259 }
3260
3261 if (h->got.offset != (bfd_vma) -1)
3262 {
3263 asection *sgot;
3264 asection *srela;
3265 Elf_Internal_Rela rela;
41978308 3266
6edf0760
NC		 3267 /* This symbol has an entry in the global offset table. Set it
3268 up. */
41978308 3269
6edf0760
NC		 3270 sgot = htab->sgot;
3271 srela = htab->srelgot;
3272 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3273
6edf0760
NC		 3274 rela.r_offset = (sgot->output_section->vma
3275 + sgot->output_offset
3276 + (h->got.offset &~ 1));
41978308 3277
6edf0760
NC		 3278 /* If this is a -Bsymbolic link, and the symbol is defined
3279 locally, we just want to emit a RELATIVE reloc. Likewise if
3280 the symbol was forced to be local because of a version file.
3281 The entry in the global offset table will already have been
3282 initialized in the relocate_section function. */
3283 if (info->shared
3284 && (info->symbolic
3285 || h->dynindx == -1
f5385ebf
AM		 3286 || h->forced_local)
3287 && h->def_regular)
6edf0760
NC		 3288 {
3289 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3290 rela.r_addend = (h->root.u.def.value
3291 + h->root.u.def.section->output_section->vma
3292 + h->root.u.def.section->output_offset);
3293 }
3294 else
3295 {
47b0e7ad 3296 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC		 3297 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3298 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3299 rela.r_addend = 0;
3300 }
41978308 3301
6edf0760 3302 loc = srela->contents;
47b0e7ad 3303 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3304 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3305 ++srela->reloc_count;
3306 }
41978308 3307
f5385ebf 3308 if (h->needs_copy)
6edf0760
NC		 3309 {
3310 asection *s;
3311 Elf_Internal_Rela rela;
41978308 3312
6edf0760 3313 /* This symbols needs a copy reloc. Set it up. */
41978308 3314
6edf0760
NC		 3315 BFD_ASSERT (h->dynindx != -1
3316 && (h->root.type == bfd_link_hash_defined
3317 || h->root.type == bfd_link_hash_defweak));
41978308 3318
6edf0760
NC		 3319 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3320 ".rela.bss");
3321 BFD_ASSERT (s != NULL);
41978308 3322
6edf0760
NC		 3323 rela.r_offset = (h->root.u.def.value
3324 + h->root.u.def.section->output_section->vma
3325 + h->root.u.def.section->output_offset);
3326 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3327 rela.r_addend = 0;
3328 loc = s->contents;
47b0e7ad 3329 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3330 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3331 ++s->reloc_count;
3332 }
41978308 3333
6edf0760
NC		 3334 /* Mark some specially defined symbols as absolute. */
3335 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
22edb2f1 3336 || h == htab->root.hgot)
6edf0760 3337 sym->st_shndx = SHN_ABS;
41978308 3338
6edf0760
NC		 3339 return TRUE;
3340}
3341
3342
3343/* Finish up the dynamic sections. */
41978308 3344
6edf0760 3345static bfd_boolean
47b0e7ad
NC		 3346m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3347 struct bfd_link_info *info)
6edf0760
NC		 3348{
3349 struct elf_m32r_link_hash_table *htab;
3350 bfd *dynobj;
3351 asection *sdyn;
3352 asection *sgot;
3353
3354#ifdef DEBUG_PIC
47b0e7ad 3355 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3356#endif
41978308 3357
6edf0760 3358 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3359 if (htab == NULL)
3360 return FALSE;
3361
6edf0760
NC		 3362 dynobj = htab->root.dynobj;
3363
3364 sgot = htab->sgotplt;
3365 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
41978308 3366
6edf0760
NC		 3367 if (htab->root.dynamic_sections_created)
3368 {
3369 asection *splt;
3370 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3371
6edf0760 3372 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3373
6edf0760 3374 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3375 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC		 3376
3377 for (; dyncon < dynconend; dyncon++)
3378 {
3379 Elf_Internal_Dyn dyn;
6edf0760 3380 asection *s;
41978308 3381
6edf0760 3382 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3383
6edf0760
NC		 3384 switch (dyn.d_tag)
3385 {
3386 default:
3387 break;
3388
3389 case DT_PLTGOT:
41978308 3390 s = htab->sgot->output_section;
6edf0760
NC		 3391 goto get_vma;
3392 case DT_JMPREL:
6edf0760
NC		 3393 s = htab->srelplt->output_section;
3394 get_vma:
3395 BFD_ASSERT (s != NULL);
3396 dyn.d_un.d_ptr = s->vma;
3397 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3398 break;
3399
3400 case DT_PLTRELSZ:
3401 s = htab->srelplt->output_section;
3402 BFD_ASSERT (s != NULL);
eea6121a 3403 dyn.d_un.d_val = s->size;
6edf0760
NC		 3404 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3405 break;
3406
3407 case DT_RELASZ:
3408 /* My reading of the SVR4 ABI indicates that the
3409 procedure linkage table relocs (DT_JMPREL) should be
3410 included in the overall relocs (DT_RELA). This is
3411 what Solaris does. However, UnixWare can not handle
3412 that case. Therefore, we override the DT_RELASZ entry
3413 here to make it not include the JMPREL relocs. Since
3414 the linker script arranges for .rela.plt to follow all
3415 other relocation sections, we don't have to worry
3416 about changing the DT_RELA entry. */
3417 if (htab->srelplt != NULL)
3418 {
3419 s = htab->srelplt->output_section;
eea6121a 3420 dyn.d_un.d_val -= s->size;
6edf0760
NC		 3421 }
3422 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3423 break;
3424 }
3425 }
41978308 3426
6edf0760
NC		 3427 /* Fill in the first entry in the procedure linkage table. */
3428 splt = htab->splt;
eea6121a 3429 if (splt && splt->size > 0)
6edf0760
NC		 3430 {
3431 if (info->shared)
3432 {
3433 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3434 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3435 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3436 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3437 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3438 }
3439 else
3440 {
3441 unsigned long addr;
3442 /* addr = .got + 4 */
3443 addr = sgot->output_section->vma + sgot->output_offset + 4;
3444 bfd_put_32 (output_bfd,
3445 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3446 splt->contents);
41978308 3447 bfd_put_32 (output_bfd,
6edf0760
NC		 3448 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3449 splt->contents + 4);
3450 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3451 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3452 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3453 }
3454
3455 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3456 PLT_ENTRY_SIZE;
3457 }
3458 }
3459
3460 /* Fill in the first three entries in the global offset table. */
eea6121a 3461 if (sgot && sgot->size > 0)
6edf0760
NC		 3462 {
3463 if (sdyn == NULL)
3464 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3465 else
3466 bfd_put_32 (output_bfd,
3467 sdyn->output_section->vma + sdyn->output_offset,
3468 sgot->contents);
3469 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3470 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3471
3472 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3473 }
41978308 3474
6edf0760
NC		 3475 return TRUE;
3476}
3477
252b5132
RH		 3478\f
3479/* Set the right machine number. */
47b0e7ad 3480
b34976b6 3481static bfd_boolean
47b0e7ad 3482m32r_elf_object_p (bfd *abfd)
252b5132
RH		 3483{
3484 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3485 {
3486 default:
3487 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3488 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3489 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3490 }
b34976b6 3491 return TRUE;
252b5132
RH		 3492}
3493
3494/* Store the machine number in the flags field. */
47b0e7ad 3495
252b5132 3496static void
47b0e7ad
NC		 3497m32r_elf_final_write_processing (bfd *abfd,
3498 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH		 3499{
3500 unsigned long val;
3501
3502 switch (bfd_get_mach (abfd))
3503 {
3504 default:
3505 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3506 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3507 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH		 3508 }
3509
3510 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3511 elf_elfheader (abfd)->e_flags |= val;
3512}
3513
c3668558 3514/* Function to keep M32R specific file flags. */
47b0e7ad 3515
b34976b6 3516static bfd_boolean
47b0e7ad 3517m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH		 3518{
3519 BFD_ASSERT (!elf_flags_init (abfd)
3520 || elf_elfheader (abfd)->e_flags == flags);
3521
3522 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM		 3523 elf_flags_init (abfd) = TRUE;
3524 return TRUE;
252b5132
RH		 3525}
3526
252b5132
RH		 3527/* Merge backend specific data from an object file to the output
3528 object file when linking. */
47b0e7ad 3529
b34976b6 3530static bfd_boolean
47b0e7ad 3531m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH		 3532{
3533 flagword out_flags;
3534 flagword in_flags;
3535
3536 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3537 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3538 return TRUE;
252b5132
RH		 3539
3540 in_flags = elf_elfheader (ibfd)->e_flags;
3541 out_flags = elf_elfheader (obfd)->e_flags;
3542
3543 if (! elf_flags_init (obfd))
3544 {
3545 /* If the input is the default architecture then do not
3546 bother setting the flags for the output architecture,
3547 instead allow future merges to do this. If no future
3548 merges ever set these flags then they will retain their
3549 unitialised values, which surprise surprise, correspond
3550 to the default values. */
3551 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3552 return TRUE;
c3668558 3553
b34976b6 3554 elf_flags_init (obfd) = TRUE;
252b5132
RH		 3555 elf_elfheader (obfd)->e_flags = in_flags;
3556
3557 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3558 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC		 3559 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3560 bfd_get_mach (ibfd));
252b5132 3561
b34976b6 3562 return TRUE;
252b5132
RH		 3563 }
3564
3565 /* Check flag compatibility. */
3566 if (in_flags == out_flags)
b34976b6 3567 return TRUE;
252b5132
RH		 3568
3569 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3570 {
88845958
NC		 3571 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3572 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3573 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3574 {
8f615d07 3575 (*_bfd_error_handler)
d003868e 3576 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH		 3577
3578 bfd_set_error (bfd_error_bad_value);
b34976b6 3579 return FALSE;
252b5132
RH		 3580 }
3581 }
3582
b34976b6 3583 return TRUE;
252b5132
RH		 3584}
3585
47b0e7ad
NC		 3586/* Display the flags field. */
3587
b34976b6 3588static bfd_boolean
47b0e7ad 3589m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH		 3590{
3591 FILE * file = (FILE *) ptr;
c3668558 3592
f12123c0 3593 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3594
252b5132 3595 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3596
252b5132 3597 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3598
252b5132
RH		 3599 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3600 {
3601 default:
3602 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3603 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3604 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3605 }
c3668558 3606
252b5132 3607 fputc ('\n', file);
c3668558 3608
b34976b6 3609 return TRUE;
252b5132
RH		 3610}
3611
47b0e7ad
NC		 3612static asection *
3613m32r_elf_gc_mark_hook (asection *sec,
07adf181 3614 struct bfd_link_info *info,
47b0e7ad
NC		 3615 Elf_Internal_Rela *rel,
3616 struct elf_link_hash_entry *h,
3617 Elf_Internal_Sym *sym)
252b5132
RH		 3618{
3619 if (h != NULL)
07adf181 3620 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH		 3621 {
3622 case R_M32R_GNU_VTINHERIT:
3623 case R_M32R_GNU_VTENTRY:
6edf0760
NC		 3624 case R_M32R_RELA_GNU_VTINHERIT:
3625 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM		 3626 return NULL;
3627 }
1e2f5b6e 3628
07adf181 3629 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH		 3630}
3631
b34976b6 3632static bfd_boolean
47b0e7ad
NC		 3633m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3634 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3635 asection *sec ATTRIBUTE_UNUSED,
3636 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3637{
6edf0760
NC		 3638 /* Update the got entry reference counts for the section being removed. */
3639 Elf_Internal_Shdr *symtab_hdr;
3640 struct elf_link_hash_entry **sym_hashes;
3641 bfd_signed_vma *local_got_refcounts;
3642 const Elf_Internal_Rela *rel, *relend;
6edf0760 3643
7dda2462
TG		 3644 if (info->relocatable)
3645 return TRUE;
3646
6edf0760
NC		 3647 elf_section_data (sec)->local_dynrel = NULL;
3648
3649 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3650 sym_hashes = elf_sym_hashes (abfd);
3651 local_got_refcounts = elf_local_got_refcounts (abfd);
3652
3653 relend = relocs + sec->reloc_count;
3654 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM		 3655 {
3656 unsigned long r_symndx;
3657 struct elf_link_hash_entry *h = NULL;
6edf0760 3658
3eb128b2
AM		 3659 r_symndx = ELF32_R_SYM (rel->r_info);
3660 if (r_symndx >= symtab_hdr->sh_info)
3661 {
3662 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3663 while (h->root.type == bfd_link_hash_indirect
3664 || h->root.type == bfd_link_hash_warning)
3665 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3666 }
6edf0760 3667
3eb128b2
AM		 3668 switch (ELF32_R_TYPE (rel->r_info))
3669 {
3670 case R_M32R_GOT16_HI_ULO:
3671 case R_M32R_GOT16_HI_SLO:
3672 case R_M32R_GOT16_LO:
3673 case R_M32R_GOTOFF:
3674 case R_M32R_GOTOFF_HI_ULO:
3675 case R_M32R_GOTOFF_HI_SLO:
3676 case R_M32R_GOTOFF_LO:
3677 case R_M32R_GOT24:
3678 case R_M32R_GOTPC_HI_ULO:
3679 case R_M32R_GOTPC_HI_SLO:
3680 case R_M32R_GOTPC_LO:
3681 case R_M32R_GOTPC24:
3682 if (h != NULL)
3683 {
3684 if (h->got.refcount > 0)
3685 h->got.refcount--;
3686 }
3687 else
3688 {
3689 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3690 local_got_refcounts[r_symndx]--;
3691 }
3692 break;
3693
3694 case R_M32R_16_RELA:
3695 case R_M32R_24_RELA:
3696 case R_M32R_32_RELA:
157e7bd1 3697 case R_M32R_REL32:
3eb128b2
AM		 3698 case R_M32R_HI16_ULO_RELA:
3699 case R_M32R_HI16_SLO_RELA:
3700 case R_M32R_LO16_RELA:
3701 case R_M32R_SDA16_RELA:
8ce757c4 3702 case R_M32R_10_PCREL_RELA:
3eb128b2
AM		 3703 case R_M32R_18_PCREL_RELA:
3704 case R_M32R_26_PCREL_RELA:
3705 if (h != NULL)
3706 {
3707 struct elf_m32r_link_hash_entry *eh;
3708 struct elf_m32r_dyn_relocs **pp;
3709 struct elf_m32r_dyn_relocs *p;
6edf0760 3710
3eb128b2
AM		 3711 if (!info->shared && h->plt.refcount > 0)
3712 h->plt.refcount -= 1;
6edf0760 3713
3eb128b2 3714 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3715
3eb128b2
AM		 3716 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3717 if (p->sec == sec)
3718 {
8ce757c4
NC		 3719 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3720 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3721 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
157e7bd1 3722 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3eb128b2
AM		 3723 p->pc_count -= 1;
3724 p->count -= 1;
3725 if (p->count == 0)
3726 *pp = p->next;
3727 break;
3728 }
3729 }
3730 break;
6edf0760 3731
3eb128b2
AM		 3732 case R_M32R_26_PLTREL:
3733 if (h != NULL)
3734 {
3735 if (h->plt.refcount > 0)
3736 h->plt.refcount--;
3737 }
3738 break;
6edf0760 3739
3eb128b2
AM		 3740 default:
3741 break;
3742 }
3743 }
6edf0760 3744
b34976b6 3745 return TRUE;
252b5132
RH		 3746}
3747
252b5132
RH		 3748/* Look through the relocs for a section during the first phase.
3749 Since we don't do .gots or .plts, we just need to consider the
3750 virtual table relocs for gc. */
c3668558 3751
b34976b6 3752static bfd_boolean
47b0e7ad
NC		 3753m32r_elf_check_relocs (bfd *abfd,
3754 struct bfd_link_info *info,
3755 asection *sec,
3756 const Elf_Internal_Rela *relocs)
252b5132
RH		 3757{
3758 Elf_Internal_Shdr *symtab_hdr;
5582a088 3759 struct elf_link_hash_entry **sym_hashes;
252b5132
RH		 3760 const Elf_Internal_Rela *rel;
3761 const Elf_Internal_Rela *rel_end;
6edf0760
NC		 3762 struct elf_m32r_link_hash_table *htab;
3763 bfd *dynobj;
c7e2358a 3764 asection *sreloc;
c3668558 3765
1049f94e 3766 if (info->relocatable)
b34976b6 3767 return TRUE;
c3668558 3768
c7e2358a 3769 sreloc = NULL;
252b5132
RH		 3770 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3771 sym_hashes = elf_sym_hashes (abfd);
c3668558 3772
6edf0760 3773 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3774 if (htab == NULL)
3775 return FALSE;
3776
6edf0760 3777 dynobj = htab->root.dynobj;
6edf0760 3778
252b5132
RH		 3779 rel_end = relocs + sec->reloc_count;
3780 for (rel = relocs; rel < rel_end; rel++)
3781 {
6edf0760 3782 int r_type;
252b5132
RH		 3783 struct elf_link_hash_entry *h;
3784 unsigned long r_symndx;
c3668558 3785
252b5132 3786 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3787 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH		 3788 if (r_symndx < symtab_hdr->sh_info)
3789 h = NULL;
3790 else
973a3492
L		 3791 {
3792 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3793 while (h->root.type == bfd_link_hash_indirect
3794 || h->root.type == bfd_link_hash_warning)
3795 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3796 }
c3668558 3797
6edf0760
NC		 3798 /* Some relocs require a global offset table. */
3799 if (htab->sgot == NULL)
3800 {
3801 switch (r_type)
3802 {
3803 case R_M32R_GOT16_HI_ULO:
3804 case R_M32R_GOT16_HI_SLO:
097f809a
NC		 3805 case R_M32R_GOTOFF:
3806 case R_M32R_GOTOFF_HI_ULO:
3807 case R_M32R_GOTOFF_HI_SLO:
3808 case R_M32R_GOTOFF_LO:
6edf0760
NC		 3809 case R_M32R_GOT16_LO:
3810 case R_M32R_GOTPC24:
3811 case R_M32R_GOTPC_HI_ULO:
3812 case R_M32R_GOTPC_HI_SLO:
3813 case R_M32R_GOTPC_LO:
3814 case R_M32R_GOT24:
3815 if (dynobj == NULL)
3816 htab->root.dynobj = dynobj = abfd;
3817 if (! create_got_section (dynobj, info))
3818 return FALSE;
3819 break;
3820
3821 default:
3822 break;
3823 }
3824 }
3825
3826 switch (r_type)
252b5132 3827 {
6edf0760
NC		 3828 case R_M32R_GOT16_HI_ULO:
3829 case R_M32R_GOT16_HI_SLO:
41978308 3830 case R_M32R_GOT16_LO:
6edf0760
NC		 3831 case R_M32R_GOT24:
3832
3833 if (h != NULL)
3834 h->got.refcount += 1;
3835 else
3836 {
3837 bfd_signed_vma *local_got_refcounts;
3838
3839 /* This is a global offset table entry for a local
3840 symbol. */
3841 local_got_refcounts = elf_local_got_refcounts (abfd);
3842 if (local_got_refcounts == NULL)
3843 {
3844 bfd_size_type size;
3845
3846 size = symtab_hdr->sh_info;
3847 size *= sizeof (bfd_signed_vma);
47b0e7ad 3848 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC		 3849 if (local_got_refcounts == NULL)
3850 return FALSE;
3851 elf_local_got_refcounts (abfd) = local_got_refcounts;
3852 }
3853 local_got_refcounts[r_symndx] += 1;
3854 }
3855 break;
3856
3857 case R_M32R_26_PLTREL:
3858 /* This symbol requires a procedure linkage table entry. We
3859 actually build the entry in adjust_dynamic_symbol,
3860 because this might be a case of linking PIC code without
3861 linking in any dynamic objects, in which case we don't
3862 need to generate a procedure linkage table after all. */
41978308 3863
6edf0760
NC		 3864 /* If this is a local symbol, we resolve it directly without
3865 creating a procedure linkage table entry. */
3866 if (h == NULL)
3867 continue;
3868
f5385ebf 3869 if (h->forced_local)
6edf0760
NC		 3870 break;
3871
f5385ebf 3872 h->needs_plt = 1;
6edf0760
NC		 3873 h->plt.refcount += 1;
3874 break;
3875
3876 case R_M32R_16_RELA:
3877 case R_M32R_24_RELA:
3878 case R_M32R_32_RELA:
157e7bd1 3879 case R_M32R_REL32:
6edf0760
NC		 3880 case R_M32R_HI16_ULO_RELA:
3881 case R_M32R_HI16_SLO_RELA:
3882 case R_M32R_LO16_RELA:
3883 case R_M32R_SDA16_RELA:
8ce757c4 3884 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 3885 case R_M32R_18_PCREL_RELA:
3886 case R_M32R_26_PCREL_RELA:
3887
3888 if (h != NULL && !info->shared)
3889 {
f5385ebf 3890 h->non_got_ref = 1;
6edf0760
NC		 3891 h->plt.refcount += 1;
3892 }
3893
3894 /* If we are creating a shared library, and this is a reloc
3895 against a global symbol, or a non PC relative reloc
3896 against a local symbol, then we need to copy the reloc
3897 into the shared library. However, if we are linking with
3898 -Bsymbolic, we do not need to copy a reloc against a
3899 global symbol which is defined in an object we are
3900 including in the link (i.e., DEF_REGULAR is set). At
3901 this point we have not seen all the input files, so it is
3902 possible that DEF_REGULAR is not set now but will be set
3903 later (it is never cleared). We account for that
3904 possibility below by storing information in the
3905 dyn_relocs field of the hash table entry. A similar
3906 situation occurs when creating shared libraries and symbol
3907 visibility changes render the symbol local.
3908
3909 If on the other hand, we are creating an executable, we
3910 may need to keep relocations for symbols satisfied by a
3911 dynamic library if we manage to avoid copy relocs for the
3912 symbol. */
3913 if ((info->shared
3914 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3915 && (( r_type != R_M32R_26_PCREL_RELA
157e7bd1 3916 && r_type != R_M32R_18_PCREL_RELA
8ce757c4 3917 && r_type != R_M32R_10_PCREL_RELA
157e7bd1 3918 && r_type != R_M32R_REL32)
6edf0760
NC		 3919 || (h != NULL
3920 && (! info->symbolic
3921 || h->root.type == bfd_link_hash_defweak
f5385ebf 3922 || !h->def_regular))))
6edf0760
NC		 3923 || (!info->shared
3924 && (sec->flags & SEC_ALLOC) != 0
3925 && h != NULL
3926 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3927 || !h->def_regular)))
6edf0760
NC		 3928 {
3929 struct elf_m32r_dyn_relocs *p;
3930 struct elf_m32r_dyn_relocs **head;
3931
3932 if (dynobj == NULL)
3933 htab->root.dynobj = dynobj = abfd;
3934
3935 /* When creating a shared object, we must copy these
3936 relocs into the output file. We create a reloc
3937 section in dynobj and make room for the reloc. */
3938 if (sreloc == NULL)
3939 {
83bac4b0
NC		 3940 sreloc = _bfd_elf_make_dynamic_reloc_section
3941 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
41978308 3942
83bac4b0
NC		 3943 if (sreloc == NULL)
3944 return FALSE;
6edf0760 3945 }
41978308 3946
6edf0760
NC		 3947 /* If this is a global symbol, we count the number of
3948 relocations we need for this symbol. */
3949 if (h != NULL)
3950 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3951 else
3952 {
87d72d41 3953 /* Track dynamic relocs needed for local syms too. */
6edf0760 3954 asection *s;
6edfbbad 3955 void *vpp;
87d72d41 3956 Elf_Internal_Sym *isym;
6edf0760 3957
87d72d41
AM		 3958 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3959 abfd, r_symndx);
3960 if (isym == NULL)
3961 return FALSE;
3962
3963 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3964 if (s == NULL)
3965 s = sec;
6edf0760 3966
6edfbbad
DJ		 3967 vpp = &elf_section_data (s)->local_dynrel;
3968 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC		 3969 }
3970
3971 p = *head;
3972 if (p == NULL || p->sec != sec)
3973 {
3974 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC		 3975
3976 p = bfd_alloc (dynobj, amt);
6edf0760
NC		 3977 if (p == NULL)
3978 return FALSE;
3979 p->next = *head;
3980 *head = p;
3981 p->sec = sec;
3982 p->count = 0;
3983 p->pc_count = 0;
3984 }
3985
3986 p->count += 1;
8ce757c4
NC		 3987 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3988 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3989 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3990 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
6edf0760
NC		 3991 p->pc_count += 1;
3992 }
3993 break;
3994
252b5132
RH		 3995 /* This relocation describes the C++ object vtable hierarchy.
3996 Reconstruct it for later use during GC. */
6edf0760 3997 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 3998 case R_M32R_GNU_VTINHERIT:
c152c796 3999 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4000 return FALSE;
252b5132 4001 break;
c3668558 4002
252b5132
RH		 4003 /* This relocation describes which C++ vtable entries are actually
4004 used. Record for later use during GC. */
4005 case R_M32R_GNU_VTENTRY:
d17e0c6e
JB		 4006 BFD_ASSERT (h != NULL);
4007 if (h != NULL
4008 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 4009 return FALSE;
252b5132 4010 break;
6edf0760 4011 case R_M32R_RELA_GNU_VTENTRY:
d17e0c6e
JB		 4012 BFD_ASSERT (h != NULL);
4013 if (h != NULL
4014 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC		 4015 return FALSE;
4016 break;
252b5132
RH		 4017 }
4018 }
c3668558 4019
b34976b6 4020 return TRUE;
252b5132 4021}
2f89ff8d 4022
b35d266b 4023static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 4024{
0112cd26
NC		 4025 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
4026 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4027 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 4028};
4029
6edf0760 4030static enum elf_reloc_type_class
47b0e7ad 4031m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
6edf0760
NC		 4032{
4033 switch ((int) ELF32_R_TYPE (rela->r_info))
4034 {
47b0e7ad
NC		 4035 case R_M32R_RELATIVE: return reloc_class_relative;
4036 case R_M32R_JMP_SLOT: return reloc_class_plt;
4037 case R_M32R_COPY: return reloc_class_copy;
4038 default: return reloc_class_normal;
6edf0760
NC		 4039 }
4040}
252b5132 4041\f
252b5132 4042#define ELF_ARCH bfd_arch_m32r
ae95ffa6 4043#define ELF_TARGET_ID M32R_ELF_DATA
aa4f99bb
AO		 4044#define ELF_MACHINE_CODE EM_M32R
4045#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4046#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132
RH		 4047
4048#define TARGET_BIG_SYM bfd_elf32_m32r_vec
4049#define TARGET_BIG_NAME "elf32-m32r"
6edf0760
NC		 4050#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4051#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4052
6edf0760 4053#define elf_info_to_howto m32r_info_to_howto
252b5132
RH		 4054#define elf_info_to_howto_rel m32r_info_to_howto_rel
4055#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4056#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4057#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4058#define elf_backend_relocate_section m32r_elf_relocate_section
4059#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4060#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4061#define elf_backend_check_relocs m32r_elf_check_relocs
4062
6edf0760
NC		 4063#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4064#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4065#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
74541ad4
AM		 4066#define elf_backend_omit_section_dynsym \
4067 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
6edf0760
NC		 4068#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4069#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4070#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4071#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4072#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4073
252b5132 4074#define elf_backend_can_gc_sections 1
6edf0760 4075/*#if !USE_REL
b491616a 4076#define elf_backend_rela_normal 1
6edf0760
NC		 4077#endif*/
4078#define elf_backend_can_refcount 1
4079#define elf_backend_want_got_plt 1
4080#define elf_backend_plt_readonly 1
4081#define elf_backend_want_plt_sym 0
4082#define elf_backend_got_header_size 12
4083
4084#define elf_backend_may_use_rel_p 1
4085#ifdef USE_M32R_OLD_RELOC
4086#define elf_backend_default_use_rela_p 0
4087#define elf_backend_may_use_rela_p 0
4088#else
4089#define elf_backend_default_use_rela_p 1
4090#define elf_backend_may_use_rela_p 1
b491616a 4091#endif
6edf0760 4092
252b5132
RH		 4093#define elf_backend_object_p m32r_elf_object_p
4094#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH		 4095#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4096#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4097#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4098#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4099
252b5132 4100#include "elf32-target.h"
6edf0760 4101
47b0e7ad 4102#undef ELF_MAXPAGESIZE
6edf0760
NC		 4103#define ELF_MAXPAGESIZE 0x1000
4104
47b0e7ad 4105#undef TARGET_BIG_SYM
6edf0760 4106#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
47b0e7ad 4107#undef TARGET_BIG_NAME
6edf0760 4108#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4109#undef TARGET_LITTLE_SYM
6edf0760 4110#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
47b0e7ad 4111#undef TARGET_LITTLE_NAME
6edf0760 4112#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4113#undef elf32_bed
6edf0760
NC		 4114#define elf32_bed elf32_m32r_lin_bed
4115
4116#include "elf32-target.h"
4117
GDB Binutils - Deliverables
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