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PR threads/10729
[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))
2629 {
2630 /* For relocs against symbols from removed linkonce sections,
2631 or sections discarded by a linker script, we just want the
2632 section contents zeroed. Avoid any special processing. */
2633 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2634 rel->r_info = 0;
2635 rel->r_addend = 0;
2636 continue;
2637 }
2638
2639 if (info->relocatable && !use_rel)
252b5132 2640 {
1049f94e 2641 /* This is a relocatable link. We don't have to change
252b5132
RH		 2642 anything, unless the reloc is against a section symbol,
2643 in which case we have to adjust according to where the
2644 section symbol winds up in the output section. */
ab96bf03
AM		 2645 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2646 rel->r_addend += sec->output_offset;
2647 continue;
2648 }
252b5132 2649
ab96bf03
AM		 2650 if (info->relocatable && use_rel)
2651 {
2652 /* This is a relocatable link. We don't have to change
2653 anything, unless the reloc is against a section symbol,
2654 in which case we have to adjust according to where the
2655 section symbol winds up in the output section. */
2656 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2657 continue;
252b5132 2658
ab96bf03 2659 addend += sec->output_offset;
252b5132 2660
252b5132
RH		 2661 /* If partial_inplace, we need to store any additional addend
2662 back in the section. */
2663 if (! howto->partial_inplace)
2664 continue;
2665 /* ??? Here is a nice place to call a special_function
2666 like handler. */
2667 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2668 r = _bfd_relocate_contents (howto, input_bfd,
2669 addend, contents + offset);
2670 else
2671 {
2672 Elf_Internal_Rela *lorel;
2673
2674 /* We allow an arbitrary number of HI16 relocs before the
2675 LO16 reloc. This permits gcc to emit the HI and LO relocs
2676 itself. */
2677 for (lorel = rel + 1;
2678 (lorel < relend
2679 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2680 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2681 lorel++)
2682 continue;
2683 if (lorel < relend
2684 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2685 {
2686 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2687 contents, addend);
2688 r = bfd_reloc_ok;
2689 }
2690 else
2691 r = _bfd_relocate_contents (howto, input_bfd,
2692 addend, contents + offset);
2693 }
252b5132
RH		 2694 }
2695 else
2696 {
252b5132 2697 /* Sanity check the address. */
07515404 2698 if (offset > high_address)
252b5132
RH		 2699 {
2700 r = bfd_reloc_outofrange;
2701 goto check_reloc;
2702 }
2703
2704 switch ((int) r_type)
2705 {
097f809a
NC		 2706 case R_M32R_GOTOFF:
2707 /* Relocation is relative to the start of the global offset
2708 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2709
097f809a
NC		 2710 ld24 rx. #label@GOTOFF + addend
2711 sub rx, r12. */
2712
2713 BFD_ASSERT (sgot != NULL);
2714
2715 relocation = -(relocation - sgot->output_section->vma);
2716 rel->r_addend = -rel->r_addend;
2717 break;
2718
2719 case R_M32R_GOTOFF_HI_ULO:
2720 case R_M32R_GOTOFF_HI_SLO:
2721 case R_M32R_GOTOFF_LO:
2722 BFD_ASSERT (sgot != NULL);
2723
2724 relocation -= sgot->output_section->vma;
2725
2726 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2727 && ((relocation + rel->r_addend) & 0x8000))
2728 rel->r_addend += 0x10000;
2729 break;
2730
6edf0760
NC		 2731 case R_M32R_GOTPC24:
2732 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2733 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2734 */
2735 relocation = sgot->output_section->vma;
2736 break;
2737
2738 case R_M32R_GOTPC_HI_ULO:
2739 case R_M32R_GOTPC_HI_SLO:
41978308 2740 case R_M32R_GOTPC_LO:
6edf0760
NC		 2741 {
2742 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2743 bl .+4
2744 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2745 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2746 or
2747 bl .+4
2748 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2749 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2750 */
2751 relocation = sgot->output_section->vma;
2752 relocation -= (input_section->output_section->vma
2753 + input_section->output_offset
2754 + rel->r_offset);
41978308 2755 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC		 2756 && ((relocation + rel->r_addend) & 0x8000))
2757 rel->r_addend += 0x10000;
2758
2759 break;
2760 }
2761 case R_M32R_GOT16_HI_ULO:
2762 case R_M32R_GOT16_HI_SLO:
41978308 2763 case R_M32R_GOT16_LO:
6edf0760
NC		 2764 /* Fall through. */
2765 case R_M32R_GOT24:
2766 /* Relocation is to the entry for this symbol in the global
2767 offset table. */
2768 BFD_ASSERT (sgot != NULL);
41978308 2769
6edf0760
NC		 2770 if (h != NULL)
2771 {
2772 bfd_boolean dyn;
2773 bfd_vma off;
41978308 2774
6edf0760
NC		 2775 off = h->got.offset;
2776 BFD_ASSERT (off != (bfd_vma) -1);
2777
2778 dyn = htab->root.dynamic_sections_created;
c152c796 2779 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6edf0760
NC		 2780 || (info->shared
2781 && (info->symbolic
2782 || h->dynindx == -1
f5385ebf
AM		 2783 || h->forced_local)
2784 && h->def_regular))
6edf0760
NC		 2785 {
2786 /* This is actually a static link, or it is a
2787 -Bsymbolic link and the symbol is defined
2788 locally, or the symbol was forced to be local
2789 because of a version file. We must initialize
2790 this entry in the global offset table. Since the
2791 offset must always be a multiple of 4, we use the
2792 least significant bit to record whether we have
2793 initialized it already.
41978308 2794
6edf0760
NC		 2795 When doing a dynamic link, we create a .rela.got
2796 relocation entry to initialize the value. This
2797 is done in the finish_dynamic_symbol routine. */
2798 if ((off & 1) != 0)
2799 off &= ~1;
2800 else
2801 {
2802 bfd_put_32 (output_bfd, relocation,
2803 sgot->contents + off);
2804 h->got.offset |= 1;
2805 }
2806 }
41978308 2807
6edf0760
NC		 2808 relocation = sgot->output_offset + off;
2809 }
2810 else
2811 {
2812 bfd_vma off;
2813 bfd_byte *loc;
41978308 2814
6edf0760
NC		 2815 BFD_ASSERT (local_got_offsets != NULL
2816 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2817
6edf0760 2818 off = local_got_offsets[r_symndx];
41978308 2819
6edf0760
NC		 2820 /* The offset must always be a multiple of 4. We use
2821 the least significant bit to record whether we have
2822 already processed this entry. */
2823 if ((off & 1) != 0)
2824 off &= ~1;
2825 else
2826 {
2827 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2828
6edf0760
NC		 2829 if (info->shared)
2830 {
2831 asection *srelgot;
2832 Elf_Internal_Rela outrel;
41978308 2833
6edf0760
NC		 2834 /* We need to generate a R_M32R_RELATIVE reloc
2835 for the dynamic linker. */
2836 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2837 BFD_ASSERT (srelgot != NULL);
41978308 2838
6edf0760
NC		 2839 outrel.r_offset = (sgot->output_section->vma
2840 + sgot->output_offset
2841 + off);
2842 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2843 outrel.r_addend = relocation;
2844 loc = srelgot->contents;
47b0e7ad 2845 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2846 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2847 ++srelgot->reloc_count;
2848 }
41978308 2849
6edf0760
NC		 2850 local_got_offsets[r_symndx] |= 1;
2851 }
41978308 2852
6edf0760
NC		 2853 relocation = sgot->output_offset + off;
2854 }
2855 if ((r_type == R_M32R_GOT16_HI_SLO)
2856 && ((relocation + rel->r_addend) & 0x8000))
2857 rel->r_addend += 0x10000;
2858
2859 break;
41978308 2860
6edf0760
NC		 2861 case R_M32R_26_PLTREL:
2862 /* Relocation is to the entry for this symbol in the
2863 procedure linkage table. */
41978308 2864
6edf0760
NC		 2865 /* The native assembler will generate a 26_PLTREL reloc
2866 for a local symbol if you assemble a call from one
2867 section to another when using -K pic. */
2868 if (h == NULL)
2869 break;
2870
f5385ebf 2871 if (h->forced_local)
6edf0760
NC		 2872 break;
2873
2874 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC		 2875 /* We didn't make a PLT entry for this symbol. This
2876 happens when statically linking PIC code, or when
2877 using -Bsymbolic. */
2878 break;
41978308 2879
6edf0760
NC		 2880 relocation = (splt->output_section->vma
2881 + splt->output_offset
2882 + h->plt.offset);
2883 break;
41978308 2884
6edf0760 2885 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC		 2886 if ((relocation + rel->r_addend) & 0x8000)
2887 rel->r_addend += 0x10000;
6edf0760 2888 /* Fall through. */
47b0e7ad 2889
6edf0760
NC		 2890 case R_M32R_16_RELA:
2891 case R_M32R_24_RELA:
2892 case R_M32R_32_RELA:
157e7bd1 2893 case R_M32R_REL32:
8ce757c4 2894 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 2895 case R_M32R_18_PCREL_RELA:
2896 case R_M32R_26_PCREL_RELA:
2897 case R_M32R_HI16_ULO_RELA:
2898 case R_M32R_LO16_RELA:
6edf0760
NC		 2899 if (info->shared
2900 && r_symndx != 0
2901 && (input_section->flags & SEC_ALLOC) != 0
8ce757c4
NC		 2902 && (( r_type != R_M32R_10_PCREL_RELA
2903 && r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC		 2904 && r_type != R_M32R_26_PCREL_RELA
2905 && r_type != R_M32R_REL32)
6edf0760
NC		 2906 || (h != NULL
2907 && h->dynindx != -1
2908 && (! info->symbolic
f5385ebf 2909 || !h->def_regular))))
6edf0760
NC		 2910 {
2911 Elf_Internal_Rela outrel;
2912 bfd_boolean skip, relocate;
2913 bfd_byte *loc;
41978308 2914
6edf0760
NC		 2915 /* When generating a shared object, these relocations
2916 are copied into the output file to be resolved at run
2917 time. */
6edf0760
NC		 2918 if (sreloc == NULL)
2919 {
83bac4b0
NC		 2920 sreloc = _bfd_elf_get_dynamic_reloc_section
2921 (input_bfd, input_section, /*rela?*/ TRUE);
2922 if (sreloc == NULL)
2923 return FALSE;
6edf0760 2924 }
41978308 2925
6edf0760
NC		 2926 skip = FALSE;
2927 relocate = FALSE;
41978308 2928
6edf0760
NC		 2929 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2930 info,
2931 input_section,
2932 rel->r_offset);
2933 if (outrel.r_offset == (bfd_vma) -1)
2934 skip = TRUE;
2935 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2936 skip = relocate = TRUE;
6edf0760
NC		 2937 outrel.r_offset += (input_section->output_section->vma
2938 + input_section->output_offset);
41978308 2939
6edf0760
NC		 2940 if (skip)
2941 memset (&outrel, 0, sizeof outrel);
8ce757c4
NC		 2942 else if ( r_type == R_M32R_10_PCREL_RELA
2943 || r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC		 2944 || r_type == R_M32R_26_PCREL_RELA
2945 || r_type == R_M32R_REL32)
6edf0760
NC		 2946 {
2947 BFD_ASSERT (h != NULL && h->dynindx != -1);
2948 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2949 outrel.r_addend = rel->r_addend;
2950 }
2951 else
2952 {
2953 /* h->dynindx may be -1 if this symbol was marked to
2954 become local. */
2955 if (h == NULL
2956 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2957 && h->def_regular))
6edf0760
NC		 2958 {
2959 relocate = TRUE;
2960 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2961 outrel.r_addend = relocation + rel->r_addend;
2962 }
2963 else
2964 {
2965 BFD_ASSERT (h->dynindx != -1);
2966 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2967 outrel.r_addend = relocation + rel->r_addend;
2968 }
2969 }
2970
2971 loc = sreloc->contents;
47b0e7ad 2972 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2973 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2974 ++sreloc->reloc_count;
2975
2976 /* If this reloc is against an external symbol, we do
2977 not want to fiddle with the addend. Otherwise, we
2978 need to include the symbol value so that it becomes
2979 an addend for the dynamic reloc. */
2980 if (! relocate)
2981 continue;
8ce757c4 2982 break;
6edf0760 2983 }
8ce757c4
NC		 2984 else if (r_type != R_M32R_10_PCREL_RELA)
2985 break;
2986 /* Fall through. */
41978308 2987
252b5132
RH		 2988 case (int) R_M32R_10_PCREL :
2989 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2990 contents, offset,
2991 sec, relocation, addend);
6edf0760 2992 goto check_reloc;
252b5132
RH		 2993
2994 case (int) R_M32R_HI16_SLO :
2995 case (int) R_M32R_HI16_ULO :
2996 {
2997 Elf_Internal_Rela *lorel;
2998
2999 /* We allow an arbitrary number of HI16 relocs before the
3000 LO16 reloc. This permits gcc to emit the HI and LO relocs
3001 itself. */
3002 for (lorel = rel + 1;
3003 (lorel < relend
3004 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
3005 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
3006 lorel++)
3007 continue;
3008 if (lorel < relend
3009 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3010 {
3011 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3012 contents, relocation + addend);
3013 r = bfd_reloc_ok;
3014 }
3015 else
3016 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3017 contents, offset,
3018 relocation, addend);
3019 }
6edf0760
NC		 3020
3021 goto check_reloc;
252b5132 3022
af705ba8 3023 case (int) R_M32R_SDA16_RELA:
252b5132
RH		 3024 case (int) R_M32R_SDA16 :
3025 {
3026 const char *name;
3027
3028 BFD_ASSERT (sec != NULL);
3029 name = bfd_get_section_name (abfd, sec);
3030
47b0e7ad 3031 if ( strcmp (name, ".sdata") == 0
252b5132
RH		 3032 || strcmp (name, ".sbss") == 0
3033 || strcmp (name, ".scommon") == 0)
3034 {
3035 bfd_vma sda_base;
3036 bfd *out_bfd = sec->output_section->owner;
3037
3038 r = m32r_elf_final_sda_base (out_bfd, info,
3039 &errmsg,
3040 &sda_base);
3041 if (r != bfd_reloc_ok)
3042 {
b34976b6 3043 ret = FALSE;
252b5132
RH		 3044 goto check_reloc;
3045 }
3046
3047 /* At this point `relocation' contains the object's
3048 address. */
3049 relocation -= sda_base;
3050 /* Now it contains the offset from _SDA_BASE_. */
3051 }
3052 else
3053 {
8f615d07 3054 (*_bfd_error_handler)
d003868e
AM		 3055 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3056 input_bfd,
3057 sec,
8f615d07 3058 sym_name,
d003868e 3059 m32r_elf_howto_table[(int) r_type].name);
252b5132 3060 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3061 ret = FALSE;
252b5132
RH		 3062 continue;
3063 }
3064 }
47b0e7ad 3065 /* Fall through. */
6edf0760
NC		 3066
3067 default : /* OLD_M32R_RELOC */
252b5132 3068
252b5132
RH		 3069 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3070 contents, offset,
3071 relocation, addend);
6edf0760 3072 goto check_reloc;
252b5132 3073 }
6edf0760
NC		 3074
3075 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3076 contents, rel->r_offset,
3077 relocation, rel->r_addend);
3078
252b5132
RH		 3079 }
3080
3081 check_reloc:
3082
3083 if (r != bfd_reloc_ok)
3084 {
3085 /* FIXME: This should be generic enough to go in a utility. */
3086 const char *name;
3087
3088 if (h != NULL)
3089 name = h->root.root.string;
3090 else
3091 {
3092 name = (bfd_elf_string_from_elf_section
3093 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3094 if (name == NULL || *name == '\0')
3095 name = bfd_section_name (input_bfd, sec);
3096 }
3097
3098 if (errmsg != NULL)
3099 goto common_error;
3100
3101 switch (r)
3102 {
3103 case bfd_reloc_overflow:
3104 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L		 3105 (info, (h ? &h->root : NULL), name, howto->name,
3106 (bfd_vma) 0, input_bfd, input_section, offset)))
b34976b6 3107 return FALSE;
252b5132
RH		 3108 break;
3109
3110 case bfd_reloc_undefined:
3111 if (! ((*info->callbacks->undefined_symbol)
3112 (info, name, input_bfd, input_section,
b34976b6
AM		 3113 offset, TRUE)))
3114 return FALSE;
252b5132
RH		 3115 break;
3116
3117 case bfd_reloc_outofrange:
3118 errmsg = _("internal error: out of range error");
3119 goto common_error;
3120
3121 case bfd_reloc_notsupported:
3122 errmsg = _("internal error: unsupported relocation error");
3123 goto common_error;
3124
3125 case bfd_reloc_dangerous:
3126 errmsg = _("internal error: dangerous error");
3127 goto common_error;
3128
3129 default:
3130 errmsg = _("internal error: unknown error");
3131 /* fall through */
3132
3133 common_error:
3134 if (!((*info->callbacks->warning)
3135 (info, errmsg, name, input_bfd, input_section,
3136 offset)))
b34976b6 3137 return FALSE;
252b5132
RH		 3138 break;
3139 }
3140 }
3141 }
3142
3143 return ret;
3144}
6edf0760
NC		 3145
3146/* Finish up dynamic symbol handling. We set the contents of various
3147 dynamic sections here. */
47b0e7ad 3148
6edf0760 3149static bfd_boolean
47b0e7ad
NC		 3150m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3151 struct bfd_link_info *info,
3152 struct elf_link_hash_entry *h,
3153 Elf_Internal_Sym *sym)
6edf0760
NC		 3154{
3155 struct elf_m32r_link_hash_table *htab;
6edf0760 3156 bfd_byte *loc;
41978308 3157
6edf0760 3158#ifdef DEBUG_PIC
47b0e7ad 3159 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3160#endif
41978308 3161
6edf0760 3162 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3163 if (htab == NULL)
3164 return FALSE;
3165
6edf0760
NC		 3166 if (h->plt.offset != (bfd_vma) -1)
3167 {
3168 asection *splt;
3169 asection *sgot;
3170 asection *srela;
3171
3172 bfd_vma plt_index;
3173 bfd_vma got_offset;
3174 Elf_Internal_Rela rela;
41978308 3175
6edf0760
NC		 3176 /* This symbol has an entry in the procedure linkage table. Set
3177 it up. */
41978308 3178
6edf0760 3179 BFD_ASSERT (h->dynindx != -1);
41978308 3180
6edf0760
NC		 3181 splt = htab->splt;
3182 sgot = htab->sgotplt;
3183 srela = htab->srelplt;
3184 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3185
3186 /* Get the index in the procedure linkage table which
3187 corresponds to this symbol. This is the index of this symbol
3188 in all the symbols for which we are making plt entries. The
3189 first entry in the procedure linkage table is reserved. */
3190 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3191
3192 /* Get the offset into the .got table of the entry that
3193 corresponds to this function. Each .got entry is 4 bytes.
3194 The first three are reserved. */
3195 got_offset = (plt_index + 3) * 4;
3196
3197 /* Fill in the entry in the procedure linkage table. */
3198 if (! info->shared)
3199 {
3200 bfd_put_32 (output_bfd,
3201 (PLT_ENTRY_WORD0b
3202 + (((sgot->output_section->vma
3203 + sgot->output_offset
3204 + got_offset) >> 16) & 0xffff)),
3205 splt->contents + h->plt.offset);
3206 bfd_put_32 (output_bfd,
3207 (PLT_ENTRY_WORD1b
3208 + ((sgot->output_section->vma
3209 + sgot->output_offset
3210 + got_offset) & 0xffff)),
3211 splt->contents + h->plt.offset + 4);
3212 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3213 splt->contents + h->plt.offset + 8);
3214 bfd_put_32 (output_bfd,
3215 (PLT_ENTRY_WORD3
3216 + plt_index * sizeof (Elf32_External_Rela)),
3217 splt->contents + h->plt.offset + 12);
3218 bfd_put_32 (output_bfd,
3219 (PLT_ENTRY_WORD4
3220 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3221 splt->contents + h->plt.offset + 16);
3222 }
3223 else
3224 {
3225 bfd_put_32 (output_bfd,
3226 PLT_ENTRY_WORD0 + got_offset,
3227 splt->contents + h->plt.offset);
3228 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3229 splt->contents + h->plt.offset + 4);
3230 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3231 splt->contents + h->plt.offset + 8);
3232 bfd_put_32 (output_bfd,
3233 (PLT_ENTRY_WORD3
3234 + plt_index * sizeof (Elf32_External_Rela)),
3235 splt->contents + h->plt.offset + 12);
3236 bfd_put_32 (output_bfd,
3237 (PLT_ENTRY_WORD4
3238 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3239 splt->contents + h->plt.offset + 16);
3240 }
41978308 3241
6edf0760
NC		 3242 /* Fill in the entry in the global offset table. */
3243 bfd_put_32 (output_bfd,
3244 (splt->output_section->vma
3245 + splt->output_offset
3246 + h->plt.offset
3247 + 12), /* same offset */
3248 sgot->contents + got_offset);
3249
3250 /* Fill in the entry in the .rela.plt section. */
3251 rela.r_offset = (sgot->output_section->vma
3252 + sgot->output_offset
3253 + got_offset);
3254 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3255 rela.r_addend = 0;
3256 loc = srela->contents;
47b0e7ad 3257 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3258 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3259
f5385ebf 3260 if (!h->def_regular)
6edf0760
NC		 3261 {
3262 /* Mark the symbol as undefined, rather than as defined in
3263 the .plt section. Leave the value alone. */
3264 sym->st_shndx = SHN_UNDEF;
3265 }
3266 }
3267
3268 if (h->got.offset != (bfd_vma) -1)
3269 {
3270 asection *sgot;
3271 asection *srela;
3272 Elf_Internal_Rela rela;
41978308 3273
6edf0760
NC		 3274 /* This symbol has an entry in the global offset table. Set it
3275 up. */
41978308 3276
6edf0760
NC		 3277 sgot = htab->sgot;
3278 srela = htab->srelgot;
3279 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3280
6edf0760
NC		 3281 rela.r_offset = (sgot->output_section->vma
3282 + sgot->output_offset
3283 + (h->got.offset &~ 1));
41978308 3284
6edf0760
NC		 3285 /* If this is a -Bsymbolic link, and the symbol is defined
3286 locally, we just want to emit a RELATIVE reloc. Likewise if
3287 the symbol was forced to be local because of a version file.
3288 The entry in the global offset table will already have been
3289 initialized in the relocate_section function. */
3290 if (info->shared
3291 && (info->symbolic
3292 || h->dynindx == -1
f5385ebf
AM		 3293 || h->forced_local)
3294 && h->def_regular)
6edf0760
NC		 3295 {
3296 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3297 rela.r_addend = (h->root.u.def.value
3298 + h->root.u.def.section->output_section->vma
3299 + h->root.u.def.section->output_offset);
3300 }
3301 else
3302 {
47b0e7ad 3303 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC		 3304 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3305 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3306 rela.r_addend = 0;
3307 }
41978308 3308
6edf0760 3309 loc = srela->contents;
47b0e7ad 3310 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3311 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3312 ++srela->reloc_count;
3313 }
41978308 3314
f5385ebf 3315 if (h->needs_copy)
6edf0760
NC		 3316 {
3317 asection *s;
3318 Elf_Internal_Rela rela;
41978308 3319
6edf0760 3320 /* This symbols needs a copy reloc. Set it up. */
41978308 3321
6edf0760
NC		 3322 BFD_ASSERT (h->dynindx != -1
3323 && (h->root.type == bfd_link_hash_defined
3324 || h->root.type == bfd_link_hash_defweak));
41978308 3325
6edf0760
NC		 3326 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3327 ".rela.bss");
3328 BFD_ASSERT (s != NULL);
41978308 3329
6edf0760
NC		 3330 rela.r_offset = (h->root.u.def.value
3331 + h->root.u.def.section->output_section->vma
3332 + h->root.u.def.section->output_offset);
3333 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3334 rela.r_addend = 0;
3335 loc = s->contents;
47b0e7ad 3336 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3337 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3338 ++s->reloc_count;
3339 }
41978308 3340
6edf0760
NC		 3341 /* Mark some specially defined symbols as absolute. */
3342 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
22edb2f1 3343 || h == htab->root.hgot)
6edf0760 3344 sym->st_shndx = SHN_ABS;
41978308 3345
6edf0760
NC		 3346 return TRUE;
3347}
3348
3349
3350/* Finish up the dynamic sections. */
41978308 3351
6edf0760 3352static bfd_boolean
47b0e7ad
NC		 3353m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3354 struct bfd_link_info *info)
6edf0760
NC		 3355{
3356 struct elf_m32r_link_hash_table *htab;
3357 bfd *dynobj;
3358 asection *sdyn;
3359 asection *sgot;
3360
3361#ifdef DEBUG_PIC
47b0e7ad 3362 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3363#endif
41978308 3364
6edf0760 3365 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3366 if (htab == NULL)
3367 return FALSE;
3368
6edf0760
NC		 3369 dynobj = htab->root.dynobj;
3370
3371 sgot = htab->sgotplt;
3372 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
41978308 3373
6edf0760
NC		 3374 if (htab->root.dynamic_sections_created)
3375 {
3376 asection *splt;
3377 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3378
6edf0760 3379 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3380
6edf0760 3381 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3382 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC		 3383
3384 for (; dyncon < dynconend; dyncon++)
3385 {
3386 Elf_Internal_Dyn dyn;
6edf0760 3387 asection *s;
41978308 3388
6edf0760 3389 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3390
6edf0760
NC		 3391 switch (dyn.d_tag)
3392 {
3393 default:
3394 break;
3395
3396 case DT_PLTGOT:
41978308 3397 s = htab->sgot->output_section;
6edf0760
NC		 3398 goto get_vma;
3399 case DT_JMPREL:
6edf0760
NC		 3400 s = htab->srelplt->output_section;
3401 get_vma:
3402 BFD_ASSERT (s != NULL);
3403 dyn.d_un.d_ptr = s->vma;
3404 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3405 break;
3406
3407 case DT_PLTRELSZ:
3408 s = htab->srelplt->output_section;
3409 BFD_ASSERT (s != NULL);
eea6121a 3410 dyn.d_un.d_val = s->size;
6edf0760
NC		 3411 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3412 break;
3413
3414 case DT_RELASZ:
3415 /* My reading of the SVR4 ABI indicates that the
3416 procedure linkage table relocs (DT_JMPREL) should be
3417 included in the overall relocs (DT_RELA). This is
3418 what Solaris does. However, UnixWare can not handle
3419 that case. Therefore, we override the DT_RELASZ entry
3420 here to make it not include the JMPREL relocs. Since
3421 the linker script arranges for .rela.plt to follow all
3422 other relocation sections, we don't have to worry
3423 about changing the DT_RELA entry. */
3424 if (htab->srelplt != NULL)
3425 {
3426 s = htab->srelplt->output_section;
eea6121a 3427 dyn.d_un.d_val -= s->size;
6edf0760
NC		 3428 }
3429 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3430 break;
3431 }
3432 }
41978308 3433
6edf0760
NC		 3434 /* Fill in the first entry in the procedure linkage table. */
3435 splt = htab->splt;
eea6121a 3436 if (splt && splt->size > 0)
6edf0760
NC		 3437 {
3438 if (info->shared)
3439 {
3440 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3441 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3442 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3443 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3444 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3445 }
3446 else
3447 {
3448 unsigned long addr;
3449 /* addr = .got + 4 */
3450 addr = sgot->output_section->vma + sgot->output_offset + 4;
3451 bfd_put_32 (output_bfd,
3452 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3453 splt->contents);
41978308 3454 bfd_put_32 (output_bfd,
6edf0760
NC		 3455 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3456 splt->contents + 4);
3457 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3458 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3459 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3460 }
3461
3462 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3463 PLT_ENTRY_SIZE;
3464 }
3465 }
3466
3467 /* Fill in the first three entries in the global offset table. */
eea6121a 3468 if (sgot && sgot->size > 0)
6edf0760
NC		 3469 {
3470 if (sdyn == NULL)
3471 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3472 else
3473 bfd_put_32 (output_bfd,
3474 sdyn->output_section->vma + sdyn->output_offset,
3475 sgot->contents);
3476 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3477 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3478
3479 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3480 }
41978308 3481
6edf0760
NC		 3482 return TRUE;
3483}
3484
252b5132
RH		 3485\f
3486/* Set the right machine number. */
47b0e7ad 3487
b34976b6 3488static bfd_boolean
47b0e7ad 3489m32r_elf_object_p (bfd *abfd)
252b5132
RH		 3490{
3491 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3492 {
3493 default:
3494 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3495 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3496 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3497 }
b34976b6 3498 return TRUE;
252b5132
RH		 3499}
3500
3501/* Store the machine number in the flags field. */
47b0e7ad 3502
252b5132 3503static void
47b0e7ad
NC		 3504m32r_elf_final_write_processing (bfd *abfd,
3505 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH		 3506{
3507 unsigned long val;
3508
3509 switch (bfd_get_mach (abfd))
3510 {
3511 default:
3512 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3513 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3514 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH		 3515 }
3516
3517 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3518 elf_elfheader (abfd)->e_flags |= val;
3519}
3520
c3668558 3521/* Function to keep M32R specific file flags. */
47b0e7ad 3522
b34976b6 3523static bfd_boolean
47b0e7ad 3524m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH		 3525{
3526 BFD_ASSERT (!elf_flags_init (abfd)
3527 || elf_elfheader (abfd)->e_flags == flags);
3528
3529 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM		 3530 elf_flags_init (abfd) = TRUE;
3531 return TRUE;
252b5132
RH		 3532}
3533
252b5132
RH		 3534/* Merge backend specific data from an object file to the output
3535 object file when linking. */
47b0e7ad 3536
b34976b6 3537static bfd_boolean
47b0e7ad 3538m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH		 3539{
3540 flagword out_flags;
3541 flagword in_flags;
3542
3543 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3544 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3545 return TRUE;
252b5132
RH		 3546
3547 in_flags = elf_elfheader (ibfd)->e_flags;
3548 out_flags = elf_elfheader (obfd)->e_flags;
3549
3550 if (! elf_flags_init (obfd))
3551 {
3552 /* If the input is the default architecture then do not
3553 bother setting the flags for the output architecture,
3554 instead allow future merges to do this. If no future
3555 merges ever set these flags then they will retain their
3556 unitialised values, which surprise surprise, correspond
3557 to the default values. */
3558 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3559 return TRUE;
c3668558 3560
b34976b6 3561 elf_flags_init (obfd) = TRUE;
252b5132
RH		 3562 elf_elfheader (obfd)->e_flags = in_flags;
3563
3564 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3565 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC		 3566 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3567 bfd_get_mach (ibfd));
252b5132 3568
b34976b6 3569 return TRUE;
252b5132
RH		 3570 }
3571
3572 /* Check flag compatibility. */
3573 if (in_flags == out_flags)
b34976b6 3574 return TRUE;
252b5132
RH		 3575
3576 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3577 {
88845958
NC		 3578 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3579 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3580 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3581 {
8f615d07 3582 (*_bfd_error_handler)
d003868e 3583 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH		 3584
3585 bfd_set_error (bfd_error_bad_value);
b34976b6 3586 return FALSE;
252b5132
RH		 3587 }
3588 }
3589
b34976b6 3590 return TRUE;
252b5132
RH		 3591}
3592
47b0e7ad
NC		 3593/* Display the flags field. */
3594
b34976b6 3595static bfd_boolean
47b0e7ad 3596m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH		 3597{
3598 FILE * file = (FILE *) ptr;
c3668558 3599
f12123c0 3600 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3601
252b5132 3602 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3603
252b5132 3604 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3605
252b5132
RH		 3606 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3607 {
3608 default:
3609 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3610 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3611 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3612 }
c3668558 3613
252b5132 3614 fputc ('\n', file);
c3668558 3615
b34976b6 3616 return TRUE;
252b5132
RH		 3617}
3618
47b0e7ad
NC		 3619static asection *
3620m32r_elf_gc_mark_hook (asection *sec,
07adf181 3621 struct bfd_link_info *info,
47b0e7ad
NC		 3622 Elf_Internal_Rela *rel,
3623 struct elf_link_hash_entry *h,
3624 Elf_Internal_Sym *sym)
252b5132
RH		 3625{
3626 if (h != NULL)
07adf181 3627 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH		 3628 {
3629 case R_M32R_GNU_VTINHERIT:
3630 case R_M32R_GNU_VTENTRY:
6edf0760
NC		 3631 case R_M32R_RELA_GNU_VTINHERIT:
3632 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM		 3633 return NULL;
3634 }
1e2f5b6e 3635
07adf181 3636 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH		 3637}
3638
b34976b6 3639static bfd_boolean
47b0e7ad
NC		 3640m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3641 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3642 asection *sec ATTRIBUTE_UNUSED,
3643 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3644{
6edf0760
NC		 3645 /* Update the got entry reference counts for the section being removed. */
3646 Elf_Internal_Shdr *symtab_hdr;
3647 struct elf_link_hash_entry **sym_hashes;
3648 bfd_signed_vma *local_got_refcounts;
3649 const Elf_Internal_Rela *rel, *relend;
6edf0760 3650
7dda2462
TG		 3651 if (info->relocatable)
3652 return TRUE;
3653
6edf0760
NC		 3654 elf_section_data (sec)->local_dynrel = NULL;
3655
3656 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3657 sym_hashes = elf_sym_hashes (abfd);
3658 local_got_refcounts = elf_local_got_refcounts (abfd);
3659
3660 relend = relocs + sec->reloc_count;
3661 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM		 3662 {
3663 unsigned long r_symndx;
3664 struct elf_link_hash_entry *h = NULL;
6edf0760 3665
3eb128b2
AM		 3666 r_symndx = ELF32_R_SYM (rel->r_info);
3667 if (r_symndx >= symtab_hdr->sh_info)
3668 {
3669 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3670 while (h->root.type == bfd_link_hash_indirect
3671 || h->root.type == bfd_link_hash_warning)
3672 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3673 }
6edf0760 3674
3eb128b2
AM		 3675 switch (ELF32_R_TYPE (rel->r_info))
3676 {
3677 case R_M32R_GOT16_HI_ULO:
3678 case R_M32R_GOT16_HI_SLO:
3679 case R_M32R_GOT16_LO:
3680 case R_M32R_GOTOFF:
3681 case R_M32R_GOTOFF_HI_ULO:
3682 case R_M32R_GOTOFF_HI_SLO:
3683 case R_M32R_GOTOFF_LO:
3684 case R_M32R_GOT24:
3685 case R_M32R_GOTPC_HI_ULO:
3686 case R_M32R_GOTPC_HI_SLO:
3687 case R_M32R_GOTPC_LO:
3688 case R_M32R_GOTPC24:
3689 if (h != NULL)
3690 {
3691 if (h->got.refcount > 0)
3692 h->got.refcount--;
3693 }
3694 else
3695 {
3696 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3697 local_got_refcounts[r_symndx]--;
3698 }
3699 break;
3700
3701 case R_M32R_16_RELA:
3702 case R_M32R_24_RELA:
3703 case R_M32R_32_RELA:
157e7bd1 3704 case R_M32R_REL32:
3eb128b2
AM		 3705 case R_M32R_HI16_ULO_RELA:
3706 case R_M32R_HI16_SLO_RELA:
3707 case R_M32R_LO16_RELA:
3708 case R_M32R_SDA16_RELA:
8ce757c4 3709 case R_M32R_10_PCREL_RELA:
3eb128b2
AM		 3710 case R_M32R_18_PCREL_RELA:
3711 case R_M32R_26_PCREL_RELA:
3712 if (h != NULL)
3713 {
3714 struct elf_m32r_link_hash_entry *eh;
3715 struct elf_m32r_dyn_relocs **pp;
3716 struct elf_m32r_dyn_relocs *p;
6edf0760 3717
3eb128b2
AM		 3718 if (!info->shared && h->plt.refcount > 0)
3719 h->plt.refcount -= 1;
6edf0760 3720
3eb128b2 3721 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3722
3eb128b2
AM		 3723 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3724 if (p->sec == sec)
3725 {
8ce757c4
NC		 3726 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3727 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3728 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
157e7bd1 3729 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3eb128b2
AM		 3730 p->pc_count -= 1;
3731 p->count -= 1;
3732 if (p->count == 0)
3733 *pp = p->next;
3734 break;
3735 }
3736 }
3737 break;
6edf0760 3738
3eb128b2
AM		 3739 case R_M32R_26_PLTREL:
3740 if (h != NULL)
3741 {
3742 if (h->plt.refcount > 0)
3743 h->plt.refcount--;
3744 }
3745 break;
6edf0760 3746
3eb128b2
AM		 3747 default:
3748 break;
3749 }
3750 }
6edf0760 3751
b34976b6 3752 return TRUE;
252b5132
RH		 3753}
3754
252b5132
RH		 3755/* Look through the relocs for a section during the first phase.
3756 Since we don't do .gots or .plts, we just need to consider the
3757 virtual table relocs for gc. */
c3668558 3758
b34976b6 3759static bfd_boolean
47b0e7ad
NC		 3760m32r_elf_check_relocs (bfd *abfd,
3761 struct bfd_link_info *info,
3762 asection *sec,
3763 const Elf_Internal_Rela *relocs)
252b5132
RH		 3764{
3765 Elf_Internal_Shdr *symtab_hdr;
5582a088 3766 struct elf_link_hash_entry **sym_hashes;
252b5132
RH		 3767 const Elf_Internal_Rela *rel;
3768 const Elf_Internal_Rela *rel_end;
6edf0760
NC		 3769 struct elf_m32r_link_hash_table *htab;
3770 bfd *dynobj;
c7e2358a 3771 asection *sreloc;
c3668558 3772
1049f94e 3773 if (info->relocatable)
b34976b6 3774 return TRUE;
c3668558 3775
c7e2358a 3776 sreloc = NULL;
252b5132
RH		 3777 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3778 sym_hashes = elf_sym_hashes (abfd);
c3668558 3779
6edf0760 3780 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3781 if (htab == NULL)
3782 return FALSE;
3783
6edf0760 3784 dynobj = htab->root.dynobj;
6edf0760 3785
252b5132
RH		 3786 rel_end = relocs + sec->reloc_count;
3787 for (rel = relocs; rel < rel_end; rel++)
3788 {
6edf0760 3789 int r_type;
252b5132
RH		 3790 struct elf_link_hash_entry *h;
3791 unsigned long r_symndx;
c3668558 3792
252b5132 3793 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3794 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH		 3795 if (r_symndx < symtab_hdr->sh_info)
3796 h = NULL;
3797 else
973a3492
L		 3798 {
3799 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3800 while (h->root.type == bfd_link_hash_indirect
3801 || h->root.type == bfd_link_hash_warning)
3802 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3803 }
c3668558 3804
6edf0760
NC		 3805 /* Some relocs require a global offset table. */
3806 if (htab->sgot == NULL)
3807 {
3808 switch (r_type)
3809 {
3810 case R_M32R_GOT16_HI_ULO:
3811 case R_M32R_GOT16_HI_SLO:
097f809a
NC		 3812 case R_M32R_GOTOFF:
3813 case R_M32R_GOTOFF_HI_ULO:
3814 case R_M32R_GOTOFF_HI_SLO:
3815 case R_M32R_GOTOFF_LO:
6edf0760
NC		 3816 case R_M32R_GOT16_LO:
3817 case R_M32R_GOTPC24:
3818 case R_M32R_GOTPC_HI_ULO:
3819 case R_M32R_GOTPC_HI_SLO:
3820 case R_M32R_GOTPC_LO:
3821 case R_M32R_GOT24:
3822 if (dynobj == NULL)
3823 htab->root.dynobj = dynobj = abfd;
3824 if (! create_got_section (dynobj, info))
3825 return FALSE;
3826 break;
3827
3828 default:
3829 break;
3830 }
3831 }
3832
3833 switch (r_type)
252b5132 3834 {
6edf0760
NC		 3835 case R_M32R_GOT16_HI_ULO:
3836 case R_M32R_GOT16_HI_SLO:
41978308 3837 case R_M32R_GOT16_LO:
6edf0760
NC		 3838 case R_M32R_GOT24:
3839
3840 if (h != NULL)
3841 h->got.refcount += 1;
3842 else
3843 {
3844 bfd_signed_vma *local_got_refcounts;
3845
3846 /* This is a global offset table entry for a local
3847 symbol. */
3848 local_got_refcounts = elf_local_got_refcounts (abfd);
3849 if (local_got_refcounts == NULL)
3850 {
3851 bfd_size_type size;
3852
3853 size = symtab_hdr->sh_info;
3854 size *= sizeof (bfd_signed_vma);
47b0e7ad 3855 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC		 3856 if (local_got_refcounts == NULL)
3857 return FALSE;
3858 elf_local_got_refcounts (abfd) = local_got_refcounts;
3859 }
3860 local_got_refcounts[r_symndx] += 1;
3861 }
3862 break;
3863
3864 case R_M32R_26_PLTREL:
3865 /* This symbol requires a procedure linkage table entry. We
3866 actually build the entry in adjust_dynamic_symbol,
3867 because this might be a case of linking PIC code without
3868 linking in any dynamic objects, in which case we don't
3869 need to generate a procedure linkage table after all. */
41978308 3870
6edf0760
NC		 3871 /* If this is a local symbol, we resolve it directly without
3872 creating a procedure linkage table entry. */
3873 if (h == NULL)
3874 continue;
3875
f5385ebf 3876 if (h->forced_local)
6edf0760
NC		 3877 break;
3878
f5385ebf 3879 h->needs_plt = 1;
6edf0760
NC		 3880 h->plt.refcount += 1;
3881 break;
3882
3883 case R_M32R_16_RELA:
3884 case R_M32R_24_RELA:
3885 case R_M32R_32_RELA:
157e7bd1 3886 case R_M32R_REL32:
6edf0760
NC		 3887 case R_M32R_HI16_ULO_RELA:
3888 case R_M32R_HI16_SLO_RELA:
3889 case R_M32R_LO16_RELA:
3890 case R_M32R_SDA16_RELA:
8ce757c4 3891 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 3892 case R_M32R_18_PCREL_RELA:
3893 case R_M32R_26_PCREL_RELA:
3894
3895 if (h != NULL && !info->shared)
3896 {
f5385ebf 3897 h->non_got_ref = 1;
6edf0760
NC		 3898 h->plt.refcount += 1;
3899 }
3900
3901 /* If we are creating a shared library, and this is a reloc
3902 against a global symbol, or a non PC relative reloc
3903 against a local symbol, then we need to copy the reloc
3904 into the shared library. However, if we are linking with
3905 -Bsymbolic, we do not need to copy a reloc against a
3906 global symbol which is defined in an object we are
3907 including in the link (i.e., DEF_REGULAR is set). At
3908 this point we have not seen all the input files, so it is
3909 possible that DEF_REGULAR is not set now but will be set
3910 later (it is never cleared). We account for that
3911 possibility below by storing information in the
3912 dyn_relocs field of the hash table entry. A similar
3913 situation occurs when creating shared libraries and symbol
3914 visibility changes render the symbol local.
3915
3916 If on the other hand, we are creating an executable, we
3917 may need to keep relocations for symbols satisfied by a
3918 dynamic library if we manage to avoid copy relocs for the
3919 symbol. */
3920 if ((info->shared
3921 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3922 && (( r_type != R_M32R_26_PCREL_RELA
157e7bd1 3923 && r_type != R_M32R_18_PCREL_RELA
8ce757c4 3924 && r_type != R_M32R_10_PCREL_RELA
157e7bd1 3925 && r_type != R_M32R_REL32)
6edf0760
NC		 3926 || (h != NULL
3927 && (! info->symbolic
3928 || h->root.type == bfd_link_hash_defweak
f5385ebf 3929 || !h->def_regular))))
6edf0760
NC		 3930 || (!info->shared
3931 && (sec->flags & SEC_ALLOC) != 0
3932 && h != NULL
3933 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3934 || !h->def_regular)))
6edf0760
NC		 3935 {
3936 struct elf_m32r_dyn_relocs *p;
3937 struct elf_m32r_dyn_relocs **head;
3938
3939 if (dynobj == NULL)
3940 htab->root.dynobj = dynobj = abfd;
3941
3942 /* When creating a shared object, we must copy these
3943 relocs into the output file. We create a reloc
3944 section in dynobj and make room for the reloc. */
3945 if (sreloc == NULL)
3946 {
83bac4b0
NC		 3947 sreloc = _bfd_elf_make_dynamic_reloc_section
3948 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
41978308 3949
83bac4b0
NC		 3950 if (sreloc == NULL)
3951 return FALSE;
6edf0760 3952 }
41978308 3953
6edf0760
NC		 3954 /* If this is a global symbol, we count the number of
3955 relocations we need for this symbol. */
3956 if (h != NULL)
3957 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3958 else
3959 {
87d72d41 3960 /* Track dynamic relocs needed for local syms too. */
6edf0760 3961 asection *s;
6edfbbad 3962 void *vpp;
87d72d41 3963 Elf_Internal_Sym *isym;
6edf0760 3964
87d72d41
AM		 3965 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3966 abfd, r_symndx);
3967 if (isym == NULL)
3968 return FALSE;
3969
3970 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3971 if (s == NULL)
3972 s = sec;
6edf0760 3973
6edfbbad
DJ		 3974 vpp = &elf_section_data (s)->local_dynrel;
3975 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC		 3976 }
3977
3978 p = *head;
3979 if (p == NULL || p->sec != sec)
3980 {
3981 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC		 3982
3983 p = bfd_alloc (dynobj, amt);
6edf0760
NC		 3984 if (p == NULL)
3985 return FALSE;
3986 p->next = *head;
3987 *head = p;
3988 p->sec = sec;
3989 p->count = 0;
3990 p->pc_count = 0;
3991 }
3992
3993 p->count += 1;
8ce757c4
NC		 3994 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3995 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3996 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3997 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
6edf0760
NC		 3998 p->pc_count += 1;
3999 }
4000 break;
4001
252b5132
RH		 4002 /* This relocation describes the C++ object vtable hierarchy.
4003 Reconstruct it for later use during GC. */
6edf0760 4004 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 4005 case R_M32R_GNU_VTINHERIT:
c152c796 4006 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4007 return FALSE;
252b5132 4008 break;
c3668558 4009
252b5132
RH		 4010 /* This relocation describes which C++ vtable entries are actually
4011 used. Record for later use during GC. */
4012 case R_M32R_GNU_VTENTRY:
d17e0c6e
JB		 4013 BFD_ASSERT (h != NULL);
4014 if (h != NULL
4015 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 4016 return FALSE;
252b5132 4017 break;
6edf0760 4018 case R_M32R_RELA_GNU_VTENTRY:
d17e0c6e
JB		 4019 BFD_ASSERT (h != NULL);
4020 if (h != NULL
4021 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC		 4022 return FALSE;
4023 break;
252b5132
RH		 4024 }
4025 }
c3668558 4026
b34976b6 4027 return TRUE;
252b5132 4028}
2f89ff8d 4029
b35d266b 4030static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 4031{
0112cd26
NC		 4032 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
4033 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4034 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 4035};
4036
6edf0760 4037static bfd_boolean
47b0e7ad
NC		 4038m32r_elf_fake_sections (bfd *abfd,
4039 Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED,
4040 asection *sec)
6edf0760 4041{
6edf0760
NC		 4042 /* The generic elf_fake_sections will set up REL_HDR using the
4043 default kind of relocations. But, we may actually need both
4044 kinds of relocations, so we set up the second header here.
4045
4046 This is not necessary for the O32 ABI since that only uses Elf32_Rel
4047 relocations (cf. System V ABI, MIPS RISC Processor Supplement,
4048 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
4049 of the resulting empty .rela.<section> sections starts with
4050 sh_offset == object size, and ld doesn't allow that. While the check
4051 is arguably bogus for empty or SHT_NOBITS sections, it can easily be
4052 avoided by not emitting those useless sections in the first place. */
4053 if ((sec->flags & SEC_RELOC) != 0)
4054 {
4055 struct bfd_elf_section_data *esd;
4056 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
4057
4058 esd = elf_section_data (sec);
4059 BFD_ASSERT (esd->rel_hdr2 == NULL);
47b0e7ad 4060 esd->rel_hdr2 = bfd_zalloc (abfd, amt);
6edf0760
NC		 4061 if (!esd->rel_hdr2)
4062 return FALSE;
4063 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
4064 !sec->use_rela_p);
4065 }
4066
4067 return TRUE;
4068}
4069
4070static enum elf_reloc_type_class
47b0e7ad 4071m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
6edf0760
NC		 4072{
4073 switch ((int) ELF32_R_TYPE (rela->r_info))
4074 {
47b0e7ad
NC		 4075 case R_M32R_RELATIVE: return reloc_class_relative;
4076 case R_M32R_JMP_SLOT: return reloc_class_plt;
4077 case R_M32R_COPY: return reloc_class_copy;
4078 default: return reloc_class_normal;
6edf0760
NC		 4079 }
4080}
252b5132 4081\f
252b5132 4082#define ELF_ARCH bfd_arch_m32r
aa4f99bb
AO		 4083#define ELF_MACHINE_CODE EM_M32R
4084#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4085#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132
RH		 4086
4087#define TARGET_BIG_SYM bfd_elf32_m32r_vec
4088#define TARGET_BIG_NAME "elf32-m32r"
6edf0760
NC		 4089#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4090#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4091
6edf0760 4092#define elf_info_to_howto m32r_info_to_howto
252b5132
RH		 4093#define elf_info_to_howto_rel m32r_info_to_howto_rel
4094#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4095#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4096#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4097#define elf_backend_relocate_section m32r_elf_relocate_section
4098#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4099#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4100#define elf_backend_check_relocs m32r_elf_check_relocs
4101
6edf0760
NC		 4102#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4103#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4104#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
74541ad4
AM		 4105#define elf_backend_omit_section_dynsym \
4106 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
6edf0760
NC		 4107#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4108#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4109#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4110#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4111#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4112
252b5132 4113#define elf_backend_can_gc_sections 1
6edf0760 4114/*#if !USE_REL
b491616a 4115#define elf_backend_rela_normal 1
6edf0760
NC		 4116#endif*/
4117#define elf_backend_can_refcount 1
4118#define elf_backend_want_got_plt 1
4119#define elf_backend_plt_readonly 1
4120#define elf_backend_want_plt_sym 0
4121#define elf_backend_got_header_size 12
4122
4123#define elf_backend_may_use_rel_p 1
4124#ifdef USE_M32R_OLD_RELOC
4125#define elf_backend_default_use_rela_p 0
4126#define elf_backend_may_use_rela_p 0
4127#else
4128#define elf_backend_default_use_rela_p 1
4129#define elf_backend_may_use_rela_p 1
4130#define elf_backend_fake_sections m32r_elf_fake_sections
b491616a 4131#endif
6edf0760 4132
252b5132
RH		 4133#define elf_backend_object_p m32r_elf_object_p
4134#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH		 4135#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4136#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4137#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4138#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4139
252b5132 4140#include "elf32-target.h"
6edf0760 4141
47b0e7ad 4142#undef ELF_MAXPAGESIZE
6edf0760
NC		 4143#define ELF_MAXPAGESIZE 0x1000
4144
47b0e7ad 4145#undef TARGET_BIG_SYM
6edf0760 4146#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
47b0e7ad 4147#undef TARGET_BIG_NAME
6edf0760 4148#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4149#undef TARGET_LITTLE_SYM
6edf0760 4150#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
47b0e7ad 4151#undef TARGET_LITTLE_NAME
6edf0760 4152#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4153#undef elf32_bed
6edf0760
NC		 4154#define elf32_bed elf32_m32r_lin_bed
4155
4156#include "elf32-target.h"
4157
GDB Binutils - Deliverables
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