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Treat assembler generated local labels as local.
[deliverable/binutils-gdb.git] / bfd / elf32-m32r.c
CommitLineData
252b5132 1/* M32R-specific support for 32-bit ELF.
b90efa5b 2 Copyright (C) 1996-2015 Free Software Foundation, Inc.
252b5132 3
88845958 4 This file is part of BFD, the Binary File Descriptor library.
252b5132 5
88845958
NC		 6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
88845958 9 (at your option) any later version.
252b5132 10
88845958
NC		 11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
252b5132 15
88845958
NC		 16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
252b5132 20
252b5132 21#include "sysdep.h"
3db64b00 22#include "bfd.h"
252b5132
RH		 23#include "libbfd.h"
24#include "elf-bfd.h"
25#include "elf/m32r.h"
26
252b5132
RH		 27#define NOP_INSN 0x7000
28#define MAKE_PARALLEL(insn) ((insn) | 0x8000)
29
30/* Use REL instead of RELA to save space.
31 This only saves space in libraries and object files, but perhaps
32 relocs will be put in ROM? All in all though, REL relocs are a pain
33 to work with. */
6edf0760 34/* #define USE_REL 1
acf8aed4
AM		 35
36#ifndef USE_REL
37#define USE_REL 0
6edf0760 38#endif */
47b0e7ad 39/* Use RELA. But use REL to link old objects for backwords compatibility. */
6edf0760
NC		 40
41/* Functions for the M32R ELF linker. */
41978308 42
6edf0760
NC		 43/* The name of the dynamic interpreter. This is put in the .interp
44 section. */
41978308 45
6edf0760 46#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
41978308 47
6edf0760 48/* The nop opcode we use. */
41978308 49
6edf0760 50#define M32R_NOP 0x7000f000
41978308 51
6edf0760 52#define PLT_EMPTY 0x10101010 /* RIE -> RIE */
41978308 53
6edf0760
NC		 54/* The size in bytes of an entry in the procedure linkage table. */
55
56#define PLT_ENTRY_SIZE 20
57#define PLT_HEADER_SIZE 20
41978308 58
6edf0760
NC		 59/* The first one entries in a procedure linkage table are reserved,
60 and the initial contents are unimportant (we zero them out).
61 Subsequent entries look like this. */
41978308 62
6edf0760
NC		 63#define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
64#define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
65#define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
66#define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
67#define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 68
6edf0760
NC		 69#define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
70#define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
71#define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
72#define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
73#define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 74
6edf0760
NC		 75#define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
76#define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
77#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
78#define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
79#define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
80#define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
81#define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
82
252b5132 83
47b0e7ad 84/* Utility to actually perform an R_M32R_10_PCREL reloc. */
252b5132 85
47b0e7ad
NC		 86static bfd_reloc_status_type
87m32r_elf_do_10_pcrel_reloc (bfd *abfd,
88 reloc_howto_type *howto,
89 asection *input_section,
90 bfd_byte *data,
91 bfd_vma offset,
92 asection *symbol_section ATTRIBUTE_UNUSED,
93 bfd_vma symbol_value,
94 bfd_vma addend)
95{
96 bfd_signed_vma relocation;
97 unsigned long x;
98 bfd_reloc_status_type status;
252b5132 99
47b0e7ad
NC		 100 /* Sanity check the address (offset in section). */
101 if (offset > bfd_get_section_limit (abfd, input_section))
102 return bfd_reloc_outofrange;
252b5132 103
47b0e7ad
NC		 104 relocation = symbol_value + addend;
105 /* Make it pc relative. */
106 relocation -= (input_section->output_section->vma
107 + input_section->output_offset);
108 /* These jumps mask off the lower two bits of the current address
109 before doing pcrel calculations. */
110 relocation -= (offset & -(bfd_vma) 4);
252b5132 111
47b0e7ad
NC		 112 if (relocation < -0x200 || relocation > 0x1ff)
113 status = bfd_reloc_overflow;
114 else
115 status = bfd_reloc_ok;
252b5132 116
47b0e7ad
NC		 117 x = bfd_get_16 (abfd, data + offset);
118 relocation >>= howto->rightshift;
119 relocation <<= howto->bitpos;
120 x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
121 bfd_put_16 (abfd, (bfd_vma) x, data + offset);
252b5132 122
47b0e7ad
NC		 123 return status;
124}
252b5132 125
47b0e7ad 126/* Handle the R_M32R_10_PCREL reloc. */
252b5132 127
47b0e7ad
NC		 128static bfd_reloc_status_type
129m32r_elf_10_pcrel_reloc (bfd * abfd,
130 arelent * reloc_entry,
131 asymbol * symbol,
132 void * data,
133 asection * input_section,
134 bfd * output_bfd,
135 char ** error_message ATTRIBUTE_UNUSED)
136{
137 /* This part is from bfd_elf_generic_reloc. */
138 if (output_bfd != NULL
139 && (symbol->flags & BSF_SECTION_SYM) == 0
140 && (! reloc_entry->howto->partial_inplace
141 || reloc_entry->addend == 0))
142 {
143 reloc_entry->address += input_section->output_offset;
144 return bfd_reloc_ok;
145 }
252b5132 146
47b0e7ad
NC		 147 if (output_bfd != NULL)
148 /* FIXME: See bfd_perform_relocation. Is this right? */
149 return bfd_reloc_continue;
252b5132 150
47b0e7ad
NC		 151 return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
152 input_section,
153 data, reloc_entry->address,
154 symbol->section,
155 (symbol->value
156 + symbol->section->output_section->vma
157 + symbol->section->output_offset),
158 reloc_entry->addend);
159}
252b5132 160
47b0e7ad
NC		 161/* Do generic partial_inplace relocation.
162 This is a local replacement for bfd_elf_generic_reloc. */
252b5132 163
47b0e7ad
NC		 164static bfd_reloc_status_type
165m32r_elf_generic_reloc (bfd *input_bfd,
166 arelent *reloc_entry,
167 asymbol *symbol,
168 void * data,
169 asection *input_section,
170 bfd *output_bfd,
171 char **error_message ATTRIBUTE_UNUSED)
172{
173 bfd_reloc_status_type ret;
174 bfd_vma relocation;
175 bfd_byte *inplace_address;
252b5132 176
47b0e7ad
NC		 177 /* This part is from bfd_elf_generic_reloc.
178 If we're relocating, and this an external symbol, we don't want
179 to change anything. */
180 if (output_bfd != NULL
181 && (symbol->flags & BSF_SECTION_SYM) == 0
182 && reloc_entry->addend == 0)
183 {
184 reloc_entry->address += input_section->output_offset;
185 return bfd_reloc_ok;
186 }
6edf0760 187
47b0e7ad
NC		 188 /* Now do the reloc in the usual way.
189 ??? It would be nice to call bfd_elf_generic_reloc here,
190 but we have partial_inplace set. bfd_elf_generic_reloc will
191 pass the handling back to bfd_install_relocation which will install
192 a section relative addend which is wrong. */
6edf0760 193
47b0e7ad
NC		 194 /* Sanity check the address (offset in section). */
195 if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
196 return bfd_reloc_outofrange;
6edf0760 197
47b0e7ad
NC		 198 ret = bfd_reloc_ok;
199 if (bfd_is_und_section (symbol->section)
200 && output_bfd == NULL)
201 ret = bfd_reloc_undefined;
6edf0760 202
47b0e7ad
NC		 203 if (bfd_is_com_section (symbol->section)
204 || output_bfd != NULL)
205 relocation = 0;
206 else
207 relocation = symbol->value;
6edf0760 208
47b0e7ad
NC		 209 /* Only do this for a final link. */
210 if (output_bfd == NULL)
211 {
212 relocation += symbol->section->output_section->vma;
213 relocation += symbol->section->output_offset;
214 }
6edf0760 215
47b0e7ad
NC		 216 relocation += reloc_entry->addend;
217 inplace_address = (bfd_byte *) data + reloc_entry->address;
6edf0760 218
47b0e7ad
NC		 219#define DOIT(x) \
220 x = ( (x & ~reloc_entry->howto->dst_mask) | \
221 (((x & reloc_entry->howto->src_mask) + relocation) & \
222 reloc_entry->howto->dst_mask))
6edf0760 223
47b0e7ad
NC		 224 switch (reloc_entry->howto->size)
225 {
226 case 1:
227 {
228 short x = bfd_get_16 (input_bfd, inplace_address);
229 DOIT (x);
230 bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
231 }
232 break;
233 case 2:
234 {
235 unsigned long x = bfd_get_32 (input_bfd, inplace_address);
236 DOIT (x);
237 bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
238 }
239 break;
240 default:
241 BFD_ASSERT (0);
242 }
6edf0760 243
47b0e7ad
NC		 244 if (output_bfd != NULL)
245 reloc_entry->address += input_section->output_offset;
6edf0760 246
47b0e7ad
NC		 247 return ret;
248}
6edf0760 249
47b0e7ad
NC		 250/* Handle the R_M32R_SDA16 reloc.
251 This reloc is used to compute the address of objects in the small data area
252 and to perform loads and stores from that area.
253 The lower 16 bits are sign extended and added to the register specified
254 in the instruction, which is assumed to point to _SDA_BASE_. */
6edf0760 255
47b0e7ad
NC		 256static bfd_reloc_status_type
257m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
258 arelent *reloc_entry,
259 asymbol *symbol,
260 void * data ATTRIBUTE_UNUSED,
261 asection *input_section,
262 bfd *output_bfd,
263 char **error_message ATTRIBUTE_UNUSED)
264{
265 /* This part is from bfd_elf_generic_reloc. */
266 if (output_bfd != NULL
267 && (symbol->flags & BSF_SECTION_SYM) == 0
268 && (! reloc_entry->howto->partial_inplace
269 || reloc_entry->addend == 0))
270 {
271 reloc_entry->address += input_section->output_offset;
272 return bfd_reloc_ok;
273 }
6edf0760 274
47b0e7ad
NC		 275 if (output_bfd != NULL)
276 /* FIXME: See bfd_perform_relocation. Is this right? */
277 return bfd_reloc_continue;
6edf0760 278
47b0e7ad
NC		 279 /* FIXME: not sure what to do here yet. But then again, the linker
280 may never call us. */
281 abort ();
282}
6edf0760 283
47b0e7ad
NC		 284\f
285/* Handle the R_M32R_HI16_[SU]LO relocs.
286 HI16_SLO is for the add3 and load/store with displacement instructions.
287 HI16_ULO is for the or3 instruction.
288 For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
289 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
290 we must add one to the high 16 bytes (which will get subtracted off when
291 the low 16 bits are added).
292 These relocs have to be done in combination with an R_M32R_LO16 reloc
293 because there is a carry from the LO16 to the HI16. Here we just save
294 the information we need; we do the actual relocation when we see the LO16.
295 This code is copied from the elf32-mips.c. We also support an arbitrary
296 number of HI16 relocs to be associated with a single LO16 reloc. The
297 assembler sorts the relocs to ensure each HI16 immediately precedes its
298 LO16. However if there are multiple copies, the assembler may not find
299 the real LO16 so it picks the first one it finds. */
6edf0760 300
47b0e7ad
NC		 301struct m32r_hi16
302{
303 struct m32r_hi16 *next;
304 bfd_byte *addr;
305 bfd_vma addend;
306};
307
308/* FIXME: This should not be a static variable. */
309
310static struct m32r_hi16 *m32r_hi16_list;
311
312static bfd_reloc_status_type
313m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
314 arelent *reloc_entry,
315 asymbol *symbol,
316 void * data,
317 asection *input_section,
318 bfd *output_bfd,
319 char **error_message ATTRIBUTE_UNUSED)
320{
321 bfd_reloc_status_type ret;
322 bfd_vma relocation;
323 struct m32r_hi16 *n;
324
325 /* This part is from bfd_elf_generic_reloc.
326 If we're relocating, and this an external symbol, we don't want
327 to change anything. */
328 if (output_bfd != NULL
329 && (symbol->flags & BSF_SECTION_SYM) == 0
330 && reloc_entry->addend == 0)
331 {
332 reloc_entry->address += input_section->output_offset;
333 return bfd_reloc_ok;
334 }
335
336 /* Sanity check the address (offset in section). */
337 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
338 return bfd_reloc_outofrange;
339
340 ret = bfd_reloc_ok;
341 if (bfd_is_und_section (symbol->section)
342 && output_bfd == NULL)
343 ret = bfd_reloc_undefined;
344
345 if (bfd_is_com_section (symbol->section))
346 relocation = 0;
347 else
348 relocation = symbol->value;
349
350 relocation += symbol->section->output_section->vma;
351 relocation += symbol->section->output_offset;
352 relocation += reloc_entry->addend;
353
354 /* Save the information, and let LO16 do the actual relocation. */
355 n = bfd_malloc ((bfd_size_type) sizeof *n);
356 if (n == NULL)
357 return bfd_reloc_outofrange;
358 n->addr = (bfd_byte *) data + reloc_entry->address;
359 n->addend = relocation;
360 n->next = m32r_hi16_list;
361 m32r_hi16_list = n;
362
363 if (output_bfd != NULL)
364 reloc_entry->address += input_section->output_offset;
365
366 return ret;
367}
368
369/* Handle an M32R ELF HI16 reloc. */
370
371static void
372m32r_elf_relocate_hi16 (bfd *input_bfd,
373 int type,
374 Elf_Internal_Rela *relhi,
375 Elf_Internal_Rela *rello,
376 bfd_byte *contents,
377 bfd_vma addend)
378{
379 unsigned long insn;
380 bfd_vma addlo;
381
382 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
383
384 addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
385 if (type == R_M32R_HI16_SLO)
386 addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
387 else
388 addlo &= 0xffff;
389
390 addend += ((insn & 0xffff) << 16) + addlo;
391
392 /* Reaccount for sign extension of low part. */
393 if (type == R_M32R_HI16_SLO
394 && (addend & 0x8000) != 0)
395 addend += 0x10000;
396
397 bfd_put_32 (input_bfd,
398 (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
399 contents + relhi->r_offset);
400}
401
402/* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
403 inplace relocation; this function exists in order to do the
404 R_M32R_HI16_[SU]LO relocation described above. */
405
406static bfd_reloc_status_type
407m32r_elf_lo16_reloc (bfd *input_bfd,
408 arelent *reloc_entry,
409 asymbol *symbol,
410 void * data,
411 asection *input_section,
412 bfd *output_bfd,
413 char **error_message)
414{
415 /* This part is from bfd_elf_generic_reloc.
416 If we're relocating, and this an external symbol, we don't want
417 to change anything. */
418 if (output_bfd != NULL
419 && (symbol->flags & BSF_SECTION_SYM) == 0
420 && reloc_entry->addend == 0)
421 {
422 reloc_entry->address += input_section->output_offset;
423 return bfd_reloc_ok;
424 }
425
426 if (m32r_hi16_list != NULL)
427 {
428 struct m32r_hi16 *l;
429
430 l = m32r_hi16_list;
431 while (l != NULL)
432 {
433 unsigned long insn;
434 unsigned long val;
435 unsigned long vallo;
436 struct m32r_hi16 *next;
437
438 /* Do the HI16 relocation. Note that we actually don't need
439 to know anything about the LO16 itself, except where to
440 find the low 16 bits of the addend needed by the LO16. */
441 insn = bfd_get_32 (input_bfd, l->addr);
442 vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
443 & 0xffff) ^ 0x8000) - 0x8000;
444 val = ((insn & 0xffff) << 16) + vallo;
445 val += l->addend;
446
447 /* Reaccount for sign extension of low part. */
448 if ((val & 0x8000) != 0)
449 val += 0x10000;
450
451 insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
452 bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
453
454 next = l->next;
455 free (l);
456 l = next;
457 }
6edf0760 458
47b0e7ad
NC		 459 m32r_hi16_list = NULL;
460 }
461
462 /* Now do the LO16 reloc in the usual way.
463 ??? It would be nice to call bfd_elf_generic_reloc here,
464 but we have partial_inplace set. bfd_elf_generic_reloc will
465 pass the handling back to bfd_install_relocation which will install
466 a section relative addend which is wrong. */
467 return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
468 input_section, output_bfd, error_message);
469}
470
471\f
472static reloc_howto_type m32r_elf_howto_table[] =
473{
474 /* This reloc does nothing. */
475 HOWTO (R_M32R_NONE, /* type */
6edf0760 476 0, /* rightshift */
6346d5ca
AM		 477 3, /* size (0 = byte, 1 = short, 2 = long) */
478 0, /* bitsize */
6edf0760
NC		 479 FALSE, /* pc_relative */
480 0, /* bitpos */
6346d5ca 481 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 482 bfd_elf_generic_reloc, /* special_function */
483 "R_M32R_NONE", /* name */
6edf0760 484 FALSE, /* partial_inplace */
47b0e7ad
NC		 485 0, /* src_mask */
486 0, /* dst_mask */
6edf0760
NC		 487 FALSE), /* pcrel_offset */
488
47b0e7ad
NC		 489 /* A 16 bit absolute relocation. */
490 HOWTO (R_M32R_16, /* type */
6edf0760 491 0, /* rightshift */
47b0e7ad
NC		 492 1, /* size (0 = byte, 1 = short, 2 = long) */
493 16, /* bitsize */
6edf0760
NC		 494 FALSE, /* pc_relative */
495 0, /* bitpos */
496 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC		 497 m32r_elf_generic_reloc,/* special_function */
498 "R_M32R_16", /* name */
499 TRUE, /* partial_inplace */
500 0xffff, /* src_mask */
501 0xffff, /* dst_mask */
6edf0760
NC		 502 FALSE), /* pcrel_offset */
503
47b0e7ad
NC		 504 /* A 32 bit absolute relocation. */
505 HOWTO (R_M32R_32, /* type */
6edf0760
NC		 506 0, /* rightshift */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
508 32, /* bitsize */
509 FALSE, /* pc_relative */
510 0, /* bitpos */
511 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC		 512 m32r_elf_generic_reloc,/* special_function */
513 "R_M32R_32", /* name */
514 TRUE, /* partial_inplace */
6edf0760
NC		 515 0xffffffff, /* src_mask */
516 0xffffffff, /* dst_mask */
517 FALSE), /* pcrel_offset */
518
47b0e7ad
NC		 519 /* A 24 bit address. */
520 HOWTO (R_M32R_24, /* type */
6edf0760
NC		 521 0, /* rightshift */
522 2, /* size (0 = byte, 1 = short, 2 = long) */
097f809a 523 24, /* bitsize */
6edf0760
NC		 524 FALSE, /* pc_relative */
525 0, /* bitpos */
47b0e7ad
NC		 526 complain_overflow_unsigned, /* complain_on_overflow */
527 m32r_elf_generic_reloc,/* special_function */
528 "R_M32R_24", /* name */
529 TRUE, /* partial_inplace */
097f809a
NC		 530 0xffffff, /* src_mask */
531 0xffffff, /* dst_mask */
6edf0760
NC		 532 FALSE), /* pcrel_offset */
533
47b0e7ad
NC		 534 /* An PC Relative 10-bit relocation, shifted by 2.
535 This reloc is complicated because relocations are relative to pc & -4.
536 i.e. branches in the right insn slot use the address of the left insn
537 slot for pc. */
538 /* ??? It's not clear whether this should have partial_inplace set or not.
539 Branch relaxing in the assembler can store the addend in the insn,
540 and if bfd_install_relocation gets called the addend may get added
541 again. */
542 HOWTO (R_M32R_10_PCREL, /* type */
543 2, /* rightshift */
544 1, /* size (0 = byte, 1 = short, 2 = long) */
545 10, /* bitsize */
546 TRUE, /* pc_relative */
547 0, /* bitpos */
548 complain_overflow_signed, /* complain_on_overflow */
549 m32r_elf_10_pcrel_reloc, /* special_function */
550 "R_M32R_10_PCREL", /* name */
551 FALSE, /* partial_inplace */
552 0xff, /* src_mask */
553 0xff, /* dst_mask */
6edf0760
NC		 554 TRUE), /* pcrel_offset */
555
47b0e7ad
NC		 556 /* A relative 18 bit relocation, right shifted by 2. */
557 HOWTO (R_M32R_18_PCREL, /* type */
558 2, /* rightshift */
6edf0760
NC		 559 2, /* size (0 = byte, 1 = short, 2 = long) */
560 16, /* bitsize */
47b0e7ad 561 TRUE, /* pc_relative */
6edf0760 562 0, /* bitpos */
47b0e7ad 563 complain_overflow_signed, /* complain_on_overflow */
6edf0760 564 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 565 "R_M32R_18_PCREL", /* name */
6edf0760 566 FALSE, /* partial_inplace */
47b0e7ad
NC		 567 0xffff, /* src_mask */
568 0xffff, /* dst_mask */
569 TRUE), /* pcrel_offset */
6edf0760 570
47b0e7ad
NC		 571 /* A relative 26 bit relocation, right shifted by 2. */
572 /* ??? It's not clear whether this should have partial_inplace set or not.
573 Branch relaxing in the assembler can store the addend in the insn,
574 and if bfd_install_relocation gets called the addend may get added
575 again. */
576 HOWTO (R_M32R_26_PCREL, /* type */
577 2, /* rightshift */
6edf0760 578 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad
NC		 579 26, /* bitsize */
580 TRUE, /* pc_relative */
6edf0760 581 0, /* bitpos */
47b0e7ad 582 complain_overflow_signed, /* complain_on_overflow */
6edf0760 583 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 584 "R_M32R_26_PCREL", /* name */
6edf0760 585 FALSE, /* partial_inplace */
47b0e7ad
NC		 586 0xffffff, /* src_mask */
587 0xffffff, /* dst_mask */
588 TRUE), /* pcrel_offset */
6edf0760 589
47b0e7ad
NC		 590 /* High 16 bits of address when lower 16 is or'd in. */
591 HOWTO (R_M32R_HI16_ULO, /* type */
592 16, /* rightshift */
6edf0760
NC		 593 2, /* size (0 = byte, 1 = short, 2 = long) */
594 16, /* bitsize */
595 FALSE, /* pc_relative */
596 0, /* bitpos */
597 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 598 m32r_elf_hi16_reloc, /* special_function */
599 "R_M32R_HI16_ULO", /* name */
600 TRUE, /* partial_inplace */
6edf0760
NC		 601 0x0000ffff, /* src_mask */
602 0x0000ffff, /* dst_mask */
603 FALSE), /* pcrel_offset */
604
47b0e7ad
NC		 605 /* High 16 bits of address when lower 16 is added in. */
606 HOWTO (R_M32R_HI16_SLO, /* type */
6edf0760
NC		 607 16, /* rightshift */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
609 16, /* bitsize */
610 FALSE, /* pc_relative */
611 0, /* bitpos */
612 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 613 m32r_elf_hi16_reloc, /* special_function */
614 "R_M32R_HI16_SLO", /* name */
615 TRUE, /* partial_inplace */
6edf0760
NC		 616 0x0000ffff, /* src_mask */
617 0x0000ffff, /* dst_mask */
47b0e7ad 618 FALSE), /* pcrel_offset */
6edf0760 619
47b0e7ad
NC		 620 /* Lower 16 bits of address. */
621 HOWTO (R_M32R_LO16, /* type */
622 0, /* rightshift */
6edf0760
NC		 623 2, /* size (0 = byte, 1 = short, 2 = long) */
624 16, /* bitsize */
625 FALSE, /* pc_relative */
626 0, /* bitpos */
627 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 628 m32r_elf_lo16_reloc, /* special_function */
629 "R_M32R_LO16", /* name */
630 TRUE, /* partial_inplace */
6edf0760
NC		 631 0x0000ffff, /* src_mask */
632 0x0000ffff, /* dst_mask */
47b0e7ad 633 FALSE), /* pcrel_offset */
6edf0760 634
47b0e7ad
NC		 635 /* Small data area 16 bits offset. */
636 HOWTO (R_M32R_SDA16, /* type */
6edf0760
NC		 637 0, /* rightshift */
638 2, /* size (0 = byte, 1 = short, 2 = long) */
639 16, /* bitsize */
640 FALSE, /* pc_relative */
641 0, /* bitpos */
47b0e7ad
NC		 642 complain_overflow_signed, /* complain_on_overflow */
643 m32r_elf_sda16_reloc, /* special_function */
644 "R_M32R_SDA16", /* name */
645 TRUE, /* partial_inplace */ /* FIXME: correct? */
6edf0760
NC		 646 0x0000ffff, /* src_mask */
647 0x0000ffff, /* dst_mask */
47b0e7ad 648 FALSE), /* pcrel_offset */
097f809a 649
47b0e7ad
NC		 650 /* GNU extension to record C++ vtable hierarchy. */
651 HOWTO (R_M32R_GNU_VTINHERIT, /* type */
652 0, /* rightshift */
653 2, /* size (0 = byte, 1 = short, 2 = long) */
654 0, /* bitsize */
655 FALSE, /* pc_relative */
656 0, /* bitpos */
657 complain_overflow_dont, /* complain_on_overflow */
658 NULL, /* special_function */
659 "R_M32R_GNU_VTINHERIT", /* name */
660 FALSE, /* partial_inplace */
661 0, /* src_mask */
662 0, /* dst_mask */
663 FALSE), /* pcrel_offset */
664
665 /* GNU extension to record C++ vtable member usage. */
666 HOWTO (R_M32R_GNU_VTENTRY, /* type */
667 0, /* rightshift */
668 2, /* size (0 = byte, 1 = short, 2 = long) */
669 0, /* bitsize */
670 FALSE, /* pc_relative */
671 0, /* bitpos */
672 complain_overflow_dont, /* complain_on_overflow */
673 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
674 "R_M32R_GNU_VTENTRY", /* name */
675 FALSE, /* partial_inplace */
676 0, /* src_mask */
677 0, /* dst_mask */
678 FALSE), /* pcrel_offset */
679
680 EMPTY_HOWTO (13),
681 EMPTY_HOWTO (14),
682 EMPTY_HOWTO (15),
683 EMPTY_HOWTO (16),
684 EMPTY_HOWTO (17),
685 EMPTY_HOWTO (18),
686 EMPTY_HOWTO (19),
687 EMPTY_HOWTO (20),
688 EMPTY_HOWTO (21),
689 EMPTY_HOWTO (22),
690 EMPTY_HOWTO (23),
691 EMPTY_HOWTO (24),
692 EMPTY_HOWTO (25),
693 EMPTY_HOWTO (26),
694 EMPTY_HOWTO (27),
695 EMPTY_HOWTO (28),
696 EMPTY_HOWTO (29),
697 EMPTY_HOWTO (30),
698 EMPTY_HOWTO (31),
699 EMPTY_HOWTO (32),
700
701 /* A 16 bit absolute relocation. */
702 HOWTO (R_M32R_16_RELA, /* type */
703 0, /* rightshift */
704 1, /* size (0 = byte, 1 = short, 2 = long) */
097f809a
NC		 705 16, /* bitsize */
706 FALSE, /* pc_relative */
707 0, /* bitpos */
47b0e7ad 708 complain_overflow_bitfield, /* complain_on_overflow */
097f809a 709 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 710 "R_M32R_16_RELA", /* name */
097f809a 711 FALSE, /* partial_inplace */
47b0e7ad
NC		 712 0xffff, /* src_mask */
713 0xffff, /* dst_mask */
097f809a
NC		 714 FALSE), /* pcrel_offset */
715
47b0e7ad
NC		 716 /* A 32 bit absolute relocation. */
717 HOWTO (R_M32R_32_RELA, /* type */
718 0, /* rightshift */
097f809a 719 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 720 32, /* bitsize */
097f809a
NC		 721 FALSE, /* pc_relative */
722 0, /* bitpos */
47b0e7ad
NC		 723 complain_overflow_bitfield, /* complain_on_overflow */
724 bfd_elf_generic_reloc,/* special_function */
725 "R_M32R_32_RELA", /* name */
097f809a 726 FALSE, /* partial_inplace */
47b0e7ad
NC		 727 0xffffffff, /* src_mask */
728 0xffffffff, /* dst_mask */
097f809a
NC		 729 FALSE), /* pcrel_offset */
730
47b0e7ad
NC		 731 /* A 24 bit address. */
732 HOWTO (R_M32R_24_RELA, /* type */
097f809a
NC		 733 0, /* rightshift */
734 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 735 24, /* bitsize */
097f809a
NC		 736 FALSE, /* pc_relative */
737 0, /* bitpos */
47b0e7ad
NC		 738 complain_overflow_unsigned, /* complain_on_overflow */
739 bfd_elf_generic_reloc,/* special_function */
740 "R_M32R_24_RELA", /* name */
097f809a 741 FALSE, /* partial_inplace */
47b0e7ad
NC		 742 0xffffff, /* src_mask */
743 0xffffff, /* dst_mask */
097f809a 744 FALSE), /* pcrel_offset */
252b5132 745
47b0e7ad
NC		 746 HOWTO (R_M32R_10_PCREL_RELA, /* type */
747 2, /* rightshift */
748 1, /* size (0 = byte, 1 = short, 2 = long) */
749 10, /* bitsize */
750 TRUE, /* pc_relative */
751 0, /* bitpos */
752 complain_overflow_signed, /* complain_on_overflow */
753 m32r_elf_10_pcrel_reloc, /* special_function */
754 "R_M32R_10_PCREL_RELA",/* name */
755 FALSE, /* partial_inplace */
756 0xff, /* src_mask */
757 0xff, /* dst_mask */
758 TRUE), /* pcrel_offset */
252b5132 759
47b0e7ad
NC		 760 /* A relative 18 bit relocation, right shifted by 2. */
761 HOWTO (R_M32R_18_PCREL_RELA, /* type */
762 2, /* rightshift */
763 2, /* size (0 = byte, 1 = short, 2 = long) */
764 16, /* bitsize */
765 TRUE, /* pc_relative */
766 0, /* bitpos */
767 complain_overflow_signed, /* complain_on_overflow */
768 bfd_elf_generic_reloc, /* special_function */
769 "R_M32R_18_PCREL_RELA",/* name */
770 FALSE, /* partial_inplace */
771 0xffff, /* src_mask */
772 0xffff, /* dst_mask */
773 TRUE), /* pcrel_offset */
252b5132 774
47b0e7ad
NC		 775 /* A relative 26 bit relocation, right shifted by 2. */
776 HOWTO (R_M32R_26_PCREL_RELA, /* type */
777 2, /* rightshift */
778 2, /* size (0 = byte, 1 = short, 2 = long) */
779 26, /* bitsize */
780 TRUE, /* pc_relative */
781 0, /* bitpos */
782 complain_overflow_signed, /* complain_on_overflow */
783 bfd_elf_generic_reloc, /* special_function */
784 "R_M32R_26_PCREL_RELA",/* name */
785 FALSE, /* partial_inplace */
786 0xffffff, /* src_mask */
787 0xffffff, /* dst_mask */
788 TRUE), /* pcrel_offset */
4c72e23a 789
47b0e7ad
NC		 790 /* High 16 bits of address when lower 16 is or'd in. */
791 HOWTO (R_M32R_HI16_ULO_RELA, /* type */
792 16, /* rightshift */
793 2, /* size (0 = byte, 1 = short, 2 = long) */
794 16, /* bitsize */
795 FALSE, /* pc_relative */
796 0, /* bitpos */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_M32R_HI16_ULO_RELA",/* name */
800 FALSE, /* partial_inplace */
801 0x0000ffff, /* src_mask */
802 0x0000ffff, /* dst_mask */
803 FALSE), /* pcrel_offset */
252b5132 804
47b0e7ad
NC		 805 /* High 16 bits of address when lower 16 is added in. */
806 HOWTO (R_M32R_HI16_SLO_RELA, /* type */
807 16, /* rightshift */
808 2, /* size (0 = byte, 1 = short, 2 = long) */
809 16, /* bitsize */
810 FALSE, /* pc_relative */
811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
814 "R_M32R_HI16_SLO_RELA",/* name */
815 FALSE, /* partial_inplace */
816 0x0000ffff, /* src_mask */
817 0x0000ffff, /* dst_mask */
818 FALSE), /* pcrel_offset */
252b5132 819
47b0e7ad
NC		 820 /* Lower 16 bits of address. */
821 HOWTO (R_M32R_LO16_RELA, /* type */
822 0, /* rightshift */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
824 16, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_dont, /* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_M32R_LO16_RELA", /* name */
830 FALSE, /* partial_inplace */
831 0x0000ffff, /* src_mask */
832 0x0000ffff, /* dst_mask */
833 FALSE), /* pcrel_offset */
252b5132 834
47b0e7ad
NC		 835 /* Small data area 16 bits offset. */
836 HOWTO (R_M32R_SDA16_RELA, /* type */
837 0, /* rightshift */
838 2, /* size (0 = byte, 1 = short, 2 = long) */
839 16, /* bitsize */
840 FALSE, /* pc_relative */
841 0, /* bitpos */
842 complain_overflow_signed, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* special_function */
844 "R_M32R_SDA16_RELA", /* name */
845 TRUE, /* partial_inplace */ /* FIXME: correct? */
846 0x0000ffff, /* src_mask */
847 0x0000ffff, /* dst_mask */
848 FALSE), /* pcrel_offset */
252b5132 849
47b0e7ad
NC		 850 /* GNU extension to record C++ vtable hierarchy. */
851 HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
852 0, /* rightshift */
853 2, /* size (0 = byte, 1 = short, 2 = long) */
854 0, /* bitsize */
855 FALSE, /* pc_relative */
856 0, /* bitpos */
857 complain_overflow_dont, /* complain_on_overflow */
858 NULL, /* special_function */
859 "R_M32R_RELA_GNU_VTINHERIT", /* name */
860 FALSE, /* partial_inplace */
861 0, /* src_mask */
862 0, /* dst_mask */
863 FALSE), /* pcrel_offset */
252b5132 864
47b0e7ad
NC		 865 /* GNU extension to record C++ vtable member usage. */
866 HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
867 0, /* rightshift */
868 2, /* size (0 = byte, 1 = short, 2 = long) */
869 0, /* bitsize */
870 FALSE, /* pc_relative */
871 0, /* bitpos */
872 complain_overflow_dont, /* complain_on_overflow */
873 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
874 "R_M32R_RELA_GNU_VTENTRY", /* name */
875 FALSE, /* partial_inplace */
876 0, /* src_mask */
877 0, /* dst_mask */
878 FALSE), /* pcrel_offset */
252b5132 879
157e7bd1
NC		 880 /* A 32 bit PC relative relocation. */
881 HOWTO (R_M32R_REL32, /* type */
882 0, /* rightshift */
883 2, /* size (0 = byte, 1 = short, 2 = long) */
884 32, /* bitsize */
885 TRUE, /* pc_relative */
886 0, /* bitpos */
887 complain_overflow_bitfield, /* complain_on_overflow */
888 bfd_elf_generic_reloc,/* special_function */
889 "R_M32R_REL32", /* name */
890 FALSE, /* partial_inplace */
891 0xffffffff, /* src_mask */
892 0xffffffff, /* dst_mask */
893 TRUE), /* pcrel_offset */
894
47b0e7ad
NC		 895 EMPTY_HOWTO (46),
896 EMPTY_HOWTO (47),
252b5132 897
47b0e7ad
NC		 898 /* Like R_M32R_24, but referring to the GOT table entry for
899 the symbol. */
900 HOWTO (R_M32R_GOT24, /* type */
901 0, /* rightshift */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
903 24, /* bitsize */
904 FALSE, /* pc_relative */
905 0, /* bitpos */
906 complain_overflow_unsigned, /* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_M32R_GOT24", /* name */
909 FALSE, /* partial_inplace */
910 0xffffff, /* src_mask */
911 0xffffff, /* dst_mask */
912 FALSE), /* pcrel_offset */
8b125cde 913
47b0e7ad
NC		 914 /* Like R_M32R_PCREL, but referring to the procedure linkage table
915 entry for the symbol. */
916 HOWTO (R_M32R_26_PLTREL, /* type */
917 2, /* rightshift */
918 2, /* size (0 = byte, 1 = short, 2 = long) */
919 24, /* bitsize */
920 TRUE, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_signed, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_M32R_26_PLTREL", /* name */
925 FALSE, /* partial_inplace */
926 0xffffff, /* src_mask */
927 0xffffff, /* dst_mask */
928 TRUE), /* pcrel_offset */
8b125cde 929
47b0e7ad
NC		 930 /* This is used only by the dynamic linker. The symbol should exist
931 both in the object being run and in some shared library. The
932 dynamic linker copies the data addressed by the symbol from the
933 shared library into the object, because the object being
934 run has to have the data at some particular address. */
935 HOWTO (R_M32R_COPY, /* type */
936 0, /* rightshift */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
938 32, /* bitsize */
939 FALSE, /* pc_relative */
940 0, /* bitpos */
941 complain_overflow_bitfield, /* complain_on_overflow */
942 bfd_elf_generic_reloc, /* special_function */
943 "R_M32R_COPY", /* name */
944 FALSE, /* partial_inplace */
945 0xffffffff, /* src_mask */
946 0xffffffff, /* dst_mask */
947 FALSE), /* pcrel_offset */
8b125cde 948
47b0e7ad
NC		 949 /* Like R_M32R_24, but used when setting global offset table
950 entries. */
951 HOWTO (R_M32R_GLOB_DAT, /* type */
952 0, /* rightshift */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
954 32, /* bitsize */
955 FALSE, /* pc_relative */
956 0, /* bitpos */
957 complain_overflow_bitfield, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_M32R_GLOB_DAT", /* name */
960 FALSE, /* partial_inplace */
961 0xffffffff, /* src_mask */
962 0xffffffff, /* dst_mask */
963 FALSE), /* pcrel_offset */
8b125cde 964
47b0e7ad
NC		 965 /* Marks a procedure linkage table entry for a symbol. */
966 HOWTO (R_M32R_JMP_SLOT, /* type */
967 0, /* rightshift */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
969 32, /* bitsize */
970 FALSE, /* pc_relative */
971 0, /* bitpos */
972 complain_overflow_bitfield, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_M32R_JMP_SLOT", /* name */
975 FALSE, /* partial_inplace */
976 0xffffffff, /* src_mask */
977 0xffffffff, /* dst_mask */
978 FALSE), /* pcrel_offset */
4c72e23a 979
47b0e7ad
NC		 980 /* Used only by the dynamic linker. When the object is run, this
981 longword is set to the load address of the object, plus the
982 addend. */
983 HOWTO (R_M32R_RELATIVE, /* type */
984 0, /* rightshift */
985 2, /* size (0 = byte, 1 = short, 2 = long) */
986 32, /* bitsize */
987 FALSE, /* pc_relative */
988 0, /* bitpos */
989 complain_overflow_bitfield, /* complain_on_overflow */
990 bfd_elf_generic_reloc, /* special_function */
991 "R_M32R_RELATIVE", /* name */
992 FALSE, /* partial_inplace */
993 0xffffffff, /* src_mask */
994 0xffffffff, /* dst_mask */
995 FALSE), /* pcrel_offset */
4c72e23a 996
47b0e7ad
NC		 997 HOWTO (R_M32R_GOTOFF, /* type */
998 0, /* rightshift */
999 2, /* size (0 = byte, 1 = short, 2 = long) */
1000 24, /* bitsize */
1001 FALSE, /* pc_relative */
1002 0, /* bitpos */
1003 complain_overflow_bitfield, /* complain_on_overflow */
1004 bfd_elf_generic_reloc, /* special_function */
1005 "R_M32R_GOTOFF", /* name */
1006 FALSE, /* partial_inplace */
1007 0xffffff, /* src_mask */
1008 0xffffff, /* dst_mask */
1009 FALSE), /* pcrel_offset */
4c72e23a 1010
47b0e7ad
NC		 1011 /* An PC Relative 24-bit relocation used when setting PIC offset
1012 table register. */
1013 HOWTO (R_M32R_GOTPC24, /* type */
1014 0, /* rightshift */
1015 2, /* size (0 = byte, 1 = short, 2 = long) */
1016 24, /* bitsize */
1017 TRUE, /* pc_relative */
1018 0, /* bitpos */
1019 complain_overflow_unsigned, /* complain_on_overflow */
1020 bfd_elf_generic_reloc, /* special_function */
1021 "R_M32R_GOTPC24", /* name */
1022 FALSE, /* partial_inplace */
1023 0xffffff, /* src_mask */
1024 0xffffff, /* dst_mask */
1025 TRUE), /* pcrel_offset */
4c72e23a 1026
47b0e7ad
NC		 1027 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1028 the symbol. */
1029 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1030 16, /* rightshift */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1032 16, /* bitsize */
1033 FALSE, /* pc_relative */
1034 0, /* bitpos */
1035 complain_overflow_dont, /* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* special_function */
1037 "R_M32R_GOT16_HI_ULO", /* name */
1038 FALSE, /* partial_inplace */
1039 0x0000ffff, /* src_mask */
1040 0x0000ffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
4c72e23a 1042
47b0e7ad
NC		 1043 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1044 the symbol. */
1045 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1046 16, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 FALSE, /* pc_relative */
1050 0, /* bitpos */
1051 complain_overflow_dont, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_M32R_GOT16_HI_SLO", /* name */
1054 FALSE, /* partial_inplace */
1055 0x0000ffff, /* src_mask */
1056 0x0000ffff, /* dst_mask */
1057 FALSE), /* pcrel_offset */
8b125cde 1058
47b0e7ad
NC		 1059 /* Like R_M32R_LO16, but referring to the GOT table entry for
1060 the symbol. */
1061 HOWTO (R_M32R_GOT16_LO, /* type */
1062 0, /* rightshift */
1063 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 16, /* bitsize */
1065 FALSE, /* pc_relative */
1066 0, /* bitpos */
1067 complain_overflow_dont, /* complain_on_overflow */
1068 bfd_elf_generic_reloc, /* special_function */
1069 "R_M32R_GOT16_LO", /* name */
1070 FALSE, /* partial_inplace */
1071 0x0000ffff, /* src_mask */
1072 0x0000ffff, /* dst_mask */
1073 FALSE), /* pcrel_offset */
4c72e23a 1074
47b0e7ad
NC		 1075 /* An PC Relative relocation used when setting PIC offset table register.
1076 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1077 the symbol. */
1078 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1079 16, /* rightshift */
1080 2, /* size (0 = byte, 1 = short, 2 = long) */
1081 16, /* bitsize */
1082 FALSE, /* pc_relative */
1083 0, /* bitpos */
1084 complain_overflow_dont, /* complain_on_overflow */
1085 bfd_elf_generic_reloc, /* special_function */
1086 "R_M32R_GOTPC_HI_ULO", /* name */
1087 FALSE, /* partial_inplace */
1088 0x0000ffff, /* src_mask */
1089 0x0000ffff, /* dst_mask */
1090 TRUE), /* pcrel_offset */
4c72e23a 1091
47b0e7ad
NC		 1092 /* An PC Relative relocation used when setting PIC offset table register.
1093 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1094 the symbol. */
1095 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1096 16, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 bfd_elf_generic_reloc, /* special_function */
1103 "R_M32R_GOTPC_HI_SLO", /* name */
1104 FALSE, /* partial_inplace */
1105 0x0000ffff, /* src_mask */
1106 0x0000ffff, /* dst_mask */
1107 TRUE), /* pcrel_offset */
4c72e23a 1108
47b0e7ad
NC		 1109 /* An PC Relative relocation used when setting PIC offset table register.
1110 Like R_M32R_LO16, but referring to the GOT table entry for
1111 the symbol. */
1112 HOWTO (R_M32R_GOTPC_LO, /* type */
1113 0, /* rightshift */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1115 16, /* bitsize */
1116 FALSE, /* pc_relative */
1117 0, /* bitpos */
1118 complain_overflow_dont, /* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_M32R_GOTPC_LO", /* name */
1121 FALSE, /* partial_inplace */
1122 0x0000ffff, /* src_mask */
1123 0x0000ffff, /* dst_mask */
1124 TRUE), /* pcrel_offset */
252b5132 1125
47b0e7ad
NC		 1126 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1127 16, /* rightshift */
1128 2, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 bfd_elf_generic_reloc, /* special_function */
1134 "R_M32R_GOTOFF_HI_ULO",/* name */
1135 FALSE, /* partial_inplace */
1136 0x0000ffff, /* src_mask */
1137 0x0000ffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
252b5132 1139
47b0e7ad
NC		 1140 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1141 16, /* rightshift */
1142 2, /* size (0 = byte, 1 = short, 2 = long) */
1143 16, /* bitsize */
1144 FALSE, /* pc_relative */
1145 0, /* bitpos */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 bfd_elf_generic_reloc, /* special_function */
1148 "R_M32R_GOTOFF_HI_SLO",/* name */
1149 FALSE, /* partial_inplace */
1150 0x0000ffff, /* src_mask */
1151 0x0000ffff, /* dst_mask */
1152 FALSE), /* pcrel_offset */
252b5132 1153
47b0e7ad
NC		 1154 HOWTO (R_M32R_GOTOFF_LO, /* type */
1155 0, /* rightshift */
1156 2, /* size (0 = byte, 1 = short, 2 = long) */
1157 16, /* bitsize */
1158 FALSE, /* pc_relative */
1159 0, /* bitpos */
1160 complain_overflow_dont, /* complain_on_overflow */
1161 bfd_elf_generic_reloc, /* special_function */
1162 "R_M32R_GOTOFF_LO", /* name */
1163 FALSE, /* partial_inplace */
1164 0x0000ffff, /* src_mask */
1165 0x0000ffff, /* dst_mask */
1166 FALSE), /* pcrel_offset */
1167};
252b5132 1168
252b5132
RH		 1169/* Map BFD reloc types to M32R ELF reloc types. */
1170
1171struct m32r_reloc_map
1172{
1173 bfd_reloc_code_real_type bfd_reloc_val;
1174 unsigned char elf_reloc_val;
1175};
1176
d5b2f13b 1177#ifdef USE_M32R_OLD_RELOC
6edf0760 1178static const struct m32r_reloc_map m32r_reloc_map_old[] =
252b5132
RH		 1179{
1180 { BFD_RELOC_NONE, R_M32R_NONE },
1181 { BFD_RELOC_16, R_M32R_16 },
1182 { BFD_RELOC_32, R_M32R_32 },
1183 { BFD_RELOC_M32R_24, R_M32R_24 },
1184 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1185 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1186 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1187 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1188 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1189 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1190 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1191 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1192 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1193};
d5b2f13b 1194#else
6edf0760
NC		 1195static const struct m32r_reloc_map m32r_reloc_map[] =
1196{
1197 { BFD_RELOC_NONE, R_M32R_NONE },
1198 { BFD_RELOC_16, R_M32R_16_RELA },
1199 { BFD_RELOC_32, R_M32R_32_RELA },
1200 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1201 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1202 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1203 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1204 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1205 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1206 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1207 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1208 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1209 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
157e7bd1 1210 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
41978308 1211
6edf0760
NC		 1212 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1213 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1214 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1215 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1216 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1217 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1218 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1219 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1220 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1221 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1222 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1223 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1224 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1225 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
097f809a
NC		 1226 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1227 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1228 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
6edf0760 1229};
d5b2f13b 1230#endif
6edf0760 1231
252b5132 1232static reloc_howto_type *
47b0e7ad
NC		 1233bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1234 bfd_reloc_code_real_type code)
252b5132
RH		 1235{
1236 unsigned int i;
1237
6edf0760
NC		 1238#ifdef USE_M32R_OLD_RELOC
1239 for (i = 0;
1240 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1241 i++)
47b0e7ad
NC		 1242 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1243 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1244
6edf0760
NC		 1245#else /* ! USE_M32R_OLD_RELOC */
1246
252b5132
RH		 1247 for (i = 0;
1248 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1249 i++)
47b0e7ad
NC		 1250 if (m32r_reloc_map[i].bfd_reloc_val == code)
1251 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
6edf0760 1252#endif
252b5132
RH		 1253
1254 return NULL;
1255}
1256
157090f7
AM		 1257static reloc_howto_type *
1258bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1259 const char *r_name)
1260{
1261 unsigned int i;
1262
1263 for (i = 0;
1264 i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1265 i++)
1266 if (m32r_elf_howto_table[i].name != NULL
1267 && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1268 return &m32r_elf_howto_table[i];
1269
1270 return NULL;
1271}
1272
252b5132
RH		 1273/* Set the howto pointer for an M32R ELF reloc. */
1274
1275static void
47b0e7ad
NC		 1276m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1277 arelent *cache_ptr,
1278 Elf_Internal_Rela *dst)
252b5132
RH		 1279{
1280 unsigned int r_type;
1281
1282 r_type = ELF32_R_TYPE (dst->r_info);
5860e3f8
NC		 1283 if (r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1284 {
64d29018 1285 _bfd_error_handler (_("%B: invalid M32R reloc number: %d"), abfd, r_type);
5860e3f8
NC		 1286 r_type = 0;
1287 }
252b5132
RH		 1288 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1289}
6edf0760
NC		 1290
1291static void
47b0e7ad
NC		 1292m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1293 arelent *cache_ptr,
1294 Elf_Internal_Rela *dst)
6edf0760
NC		 1295{
1296 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1297 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1298 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1299 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1300}
1301
252b5132
RH		 1302\f
1303/* Given a BFD section, try to locate the corresponding ELF section
1304 index. */
1305
47b0e7ad
NC		 1306static bfd_boolean
1307_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1308 asection *sec,
1309 int *retval)
252b5132
RH		 1310{
1311 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1312 {
1313 *retval = SHN_M32R_SCOMMON;
b34976b6 1314 return TRUE;
252b5132 1315 }
b34976b6 1316 return FALSE;
252b5132
RH		 1317}
1318
1319/* M32R ELF uses two common sections. One is the usual one, and the other
1320 is for small objects. All the small objects are kept together, and then
1321 referenced via one register, which yields faster assembler code. It is
1322 up to the compiler to emit an instruction to load the register with
1323 _SDA_BASE. This is what we use for the small common section. This
1324 approach is copied from elf32-mips.c. */
1325static asection m32r_elf_scom_section;
1326static asymbol m32r_elf_scom_symbol;
1327static asymbol *m32r_elf_scom_symbol_ptr;
1328
1329/* Handle the special M32R section numbers that a symbol may use. */
1330
47b0e7ad
NC		 1331static void
1332_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1333{
47b0e7ad 1334 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH		 1335
1336 switch (elfsym->internal_elf_sym.st_shndx)
1337 {
1338 case SHN_M32R_SCOMMON:
1339 if (m32r_elf_scom_section.name == NULL)
1340 {
1341 /* Initialize the small common section. */
1342 m32r_elf_scom_section.name = ".scommon";
1343 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1344 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1345 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1346 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1347 m32r_elf_scom_symbol.name = ".scommon";
1348 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1349 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1350 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1351 }
1352 asym->section = &m32r_elf_scom_section;
1353 asym->value = elfsym->internal_elf_sym.st_size;
1354 break;
1355 }
1356}
1357
1358/* Hook called by the linker routine which adds symbols from an object
1359 file. We must handle the special M32R section numbers here.
1360 We also keep watching for whether we need to create the sdata special
1361 linker sections. */
1362
b34976b6 1363static bfd_boolean
47b0e7ad
NC		 1364m32r_elf_add_symbol_hook (bfd *abfd,
1365 struct bfd_link_info *info,
1366 Elf_Internal_Sym *sym,
1367 const char **namep,
1368 flagword *flagsp ATTRIBUTE_UNUSED,
1369 asection **secp,
1370 bfd_vma *valp)
252b5132 1371{
1049f94e 1372 if (! info->relocatable
252b5132 1373 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1374 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1375 && is_elf_hash_table (info->hash))
252b5132
RH		 1376 {
1377 /* This is simpler than using _bfd_elf_create_linker_section
1378 (our needs are simpler than ppc's needs). Also
1379 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1380 section already exists a new one is created that follows it which
1381 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1382 struct elf_link_hash_entry *h;
14a793b2 1383 struct bfd_link_hash_entry *bh;
252b5132
RH		 1384 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1385
6edf0760 1386 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC		 1387 if (s == NULL)
1388 {
1389 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1390 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1391
3496cb2a
L		 1392 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1393 flags);
6edf0760
NC		 1394 if (s == NULL)
1395 return FALSE;
a253d456
NC		 1396 if (! bfd_set_section_alignment (abfd, s, 2))
1397 return FALSE;
6edf0760
NC		 1398 }
1399
1400 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1401 FALSE, FALSE, FALSE);
1402
1403 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1404 && !(_bfd_generic_link_add_one_symbol (info,
1405 abfd,
1406 "_SDA_BASE_",
1407 BSF_GLOBAL,
1408 s,
1409 (bfd_vma) 32768,
47b0e7ad 1410 NULL,
6edf0760
NC		 1411 FALSE,
1412 get_elf_backend_data (abfd)->collect,
1413 &bh)))
1414 return FALSE;
1415 h = (struct elf_link_hash_entry *) bh;
1416 h->type = STT_OBJECT;
1417 }
1418
1419 switch (sym->st_shndx)
1420 {
1421 case SHN_M32R_SCOMMON:
1422 *secp = bfd_make_section_old_way (abfd, ".scommon");
1423 (*secp)->flags |= SEC_IS_COMMON;
1424 *valp = sym->st_size;
1425 break;
1426 }
1427
1428 return TRUE;
1429}
1430
1431/* We have to figure out the SDA_BASE value, so that we can adjust the
1432 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1433 BFD. If we can't find it, we're stuck. We cache it in the ELF
1434 target data. We don't need to adjust the symbol value for an
1435 external symbol if we are producing relocatable output. */
1436
1437static bfd_reloc_status_type
47b0e7ad
NC		 1438m32r_elf_final_sda_base (bfd *output_bfd,
1439 struct bfd_link_info *info,
1440 const char **error_message,
1441 bfd_vma *psb)
6edf0760
NC		 1442{
1443 if (elf_gp (output_bfd) == 0)
1444 {
1445 struct bfd_link_hash_entry *h;
1446
1447 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1448 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC		 1449 elf_gp (output_bfd) = (h->u.def.value
1450 + h->u.def.section->output_section->vma
1451 + h->u.def.section->output_offset);
1452 else
1453 {
1454 /* Only get the error once. */
1455 *psb = elf_gp (output_bfd) = 4;
1456 *error_message =
1457 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1458 return bfd_reloc_dangerous;
1459 }
1460 }
1461 *psb = elf_gp (output_bfd);
1462 return bfd_reloc_ok;
1463}
1464\f
1465/* Return size of a PLT entry. */
1466#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1467
1468/* The m32r linker needs to keep track of the number of relocs that it
1469 decides to copy in check_relocs for each symbol. This is so that
1470 it can discard PC relative relocs if it doesn't need them when
1471 linking with -Bsymbolic. We store the information in a field
1472 extending the regular ELF linker hash table. */
1473
1474/* This structure keeps track of the number of PC relative relocs we
1475 have copied for a given symbol. */
1476
1477struct elf_m32r_pcrel_relocs_copied
1478{
1479 /* Next section. */
1480 struct elf_m32r_pcrel_relocs_copied *next;
1481 /* A section in dynobj. */
1482 asection *section;
1483 /* Number of relocs copied in this section. */
1484 bfd_size_type count;
1485};
1486
1487/* The sh linker needs to keep track of the number of relocs that it
1488 decides to copy as dynamic relocs in check_relocs for each symbol.
1489 This is so that it can later discard them if they are found to be
1490 unnecessary. We store the information in a field extending the
1491 regular ELF linker hash table. */
1492
1493struct elf_m32r_dyn_relocs
1494{
1495 struct elf_m32r_dyn_relocs *next;
1496
1497 /* The input section of the reloc. */
1498 asection *sec;
1499
1500 /* Total number of relocs copied for the input section. */
1501 bfd_size_type count;
1502
1503 /* Number of pc-relative relocs copied for the input section. */
1504 bfd_size_type pc_count;
1505};
1506
1507
1508/* m32r ELF linker hash entry. */
1509
1510struct elf_m32r_link_hash_entry
1511{
1512 struct elf_link_hash_entry root;
1513
1514 /* Track dynamic relocs copied for this symbol. */
1515 struct elf_m32r_dyn_relocs *dyn_relocs;
6edf0760
NC		 1516};
1517
1518/* m32r ELF linker hash table. */
1519
1520struct elf_m32r_link_hash_table
1521{
1522 struct elf_link_hash_table root;
1523
1524 /* Short-cuts to get to dynamic linker sections. */
1525 asection *sgot;
1526 asection *sgotplt;
1527 asection *srelgot;
1528 asection *splt;
1529 asection *srelplt;
1530 asection *sdynbss;
1531 asection *srelbss;
1532
87d72d41
AM		 1533 /* Small local sym cache. */
1534 struct sym_cache sym_cache;
6edf0760
NC		 1535};
1536
1537/* Traverse an m32r ELF linker hash table. */
1538
1539#define m32r_elf_link_hash_traverse(table, func, info) \
1540 (elf_link_hash_traverse \
1541 (&(table)->root, \
47b0e7ad 1542 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC		 1543 (info)))
1544
1545/* Get the m32r ELF linker hash table from a link_info structure. */
1546
6edf0760 1547#define m32r_elf_hash_table(p) \
4dfe6ac6
NC		 1548 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1549 == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
6edf0760
NC		 1550
1551/* Create an entry in an m32r ELF linker hash table. */
6edf0760
NC		 1552
1553static struct bfd_hash_entry *
47b0e7ad
NC		 1554m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1555 struct bfd_hash_table *table,
1556 const char *string)
6edf0760
NC		 1557{
1558 struct elf_m32r_link_hash_entry *ret =
1559 (struct elf_m32r_link_hash_entry *) entry;
41978308 1560
6edf0760
NC		 1561 /* Allocate the structure if it has not already been allocated by a
1562 subclass. */
47b0e7ad
NC		 1563 if (ret == NULL)
1564 ret = bfd_hash_allocate (table,
1565 sizeof (struct elf_m32r_link_hash_entry));
1566 if (ret == NULL)
1567 return NULL;
41978308 1568
6edf0760
NC		 1569 /* Call the allocation method of the superclass. */
1570 ret = ((struct elf_m32r_link_hash_entry *)
1571 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1572 table, string));
47b0e7ad 1573 if (ret != NULL)
6edf0760
NC		 1574 {
1575 struct elf_m32r_link_hash_entry *eh;
41978308 1576
6edf0760
NC		 1577 eh = (struct elf_m32r_link_hash_entry *) ret;
1578 eh->dyn_relocs = NULL;
6edf0760 1579 }
41978308 1580
6edf0760
NC		 1581 return (struct bfd_hash_entry *) ret;
1582}
1583
1584/* Create an m32r ELF linker hash table. */
6edf0760
NC		 1585
1586static struct bfd_link_hash_table *
47b0e7ad 1587m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760
NC		 1588{
1589 struct elf_m32r_link_hash_table *ret;
1590 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
41978308 1591
7bf52ea2 1592 ret = bfd_zmalloc (amt);
47b0e7ad 1593 if (ret == NULL)
6edf0760 1594 return NULL;
41978308 1595
66eb6687
AM		 1596 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1597 m32r_elf_link_hash_newfunc,
4dfe6ac6
NC		 1598 sizeof (struct elf_m32r_link_hash_entry),
1599 M32R_ELF_DATA))
6edf0760
NC		 1600 {
1601 free (ret);
1602 return NULL;
1603 }
41978308 1604
6edf0760
NC		 1605 return &ret->root.root;
1606}
1607
1608/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1609 shortcuts to them in our hash table. */
6edf0760
NC		 1610
1611static bfd_boolean
47b0e7ad 1612create_got_section (bfd *dynobj, struct bfd_link_info *info)
6edf0760
NC		 1613{
1614 struct elf_m32r_link_hash_table *htab;
1615
1616 if (! _bfd_elf_create_got_section (dynobj, info))
1617 return FALSE;
1618
1619 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1620 if (htab == NULL)
1621 return FALSE;
1622
3d4d4302
AM		 1623 htab->sgot = bfd_get_linker_section (dynobj, ".got");
1624 htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
1625 htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got");
64e77c6d 1626 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
6edf0760
NC		 1627 abort ();
1628
6edf0760
NC		 1629 return TRUE;
1630}
1631
1632/* Create dynamic sections when linking against a dynamic object. */
1633
1634static bfd_boolean
47b0e7ad 1635m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760
NC		 1636{
1637 struct elf_m32r_link_hash_table *htab;
1638 flagword flags, pltflags;
47b0e7ad 1639 asection *s;
6edf0760
NC		 1640 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1641 int ptralign = 2; /* 32bit */
1642
1643 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1644 if (htab == NULL)
1645 return FALSE;
6edf0760
NC		 1646
1647 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1648 .rel[a].bss sections. */
6edf0760
NC		 1649 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1650 | SEC_LINKER_CREATED);
1651
1652 pltflags = flags;
1653 pltflags |= SEC_CODE;
1654 if (bed->plt_not_loaded)
1655 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1656 if (bed->plt_readonly)
1657 pltflags |= SEC_READONLY;
1658
3d4d4302 1659 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
6edf0760
NC		 1660 htab->splt = s;
1661 if (s == NULL
6edf0760
NC		 1662 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1663 return FALSE;
1664
1665 if (bed->want_plt_sym)
1666 {
1667 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1668 .plt section. */
41978308
AM		 1669 struct bfd_link_hash_entry *bh = NULL;
1670 struct elf_link_hash_entry *h;
47b0e7ad 1671
6edf0760
NC		 1672 if (! (_bfd_generic_link_add_one_symbol
1673 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
47b0e7ad 1674 (bfd_vma) 0, NULL, FALSE,
41978308 1675 get_elf_backend_data (abfd)->collect, &bh)))
6edf0760 1676 return FALSE;
41978308 1677 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1678 h->def_regular = 1;
6edf0760 1679 h->type = STT_OBJECT;
7325306f 1680 htab->root.hplt = h;
6edf0760
NC		 1681
1682 if (info->shared
c152c796 1683 && ! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 1684 return FALSE;
1685 }
1686
3d4d4302
AM		 1687 s = bfd_make_section_anyway_with_flags (abfd,
1688 bed->default_use_rela_p
1689 ? ".rela.plt" : ".rel.plt",
1690 flags | SEC_READONLY);
6edf0760
NC		 1691 htab->srelplt = s;
1692 if (s == NULL
6edf0760
NC		 1693 || ! bfd_set_section_alignment (abfd, s, ptralign))
1694 return FALSE;
1695
1696 if (htab->sgot == NULL
1697 && ! create_got_section (abfd, info))
1698 return FALSE;
1699
6edf0760
NC		 1700 if (bed->want_dynbss)
1701 {
1702 /* The .dynbss section is a place to put symbols which are defined
1703 by dynamic objects, are referenced by regular objects, and are
1704 not functions. We must allocate space for them in the process
1705 image and use a R_*_COPY reloc to tell the dynamic linker to
1706 initialize them at run time. The linker script puts the .dynbss
1707 section into the .bss section of the final image. */
3d4d4302
AM		 1708 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1709 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1710 htab->sdynbss = s;
3496cb2a 1711 if (s == NULL)
6edf0760
NC		 1712 return FALSE;
1713 /* The .rel[a].bss section holds copy relocs. This section is not
1714 normally needed. We need to create it here, though, so that the
1715 linker will map it to an output section. We can't just create it
1716 only if we need it, because we will not know whether we need it
1717 until we have seen all the input files, and the first time the
1718 main linker code calls BFD after examining all the input files
1719 (size_dynamic_sections) the input sections have already been
1720 mapped to the output sections. If the section turns out not to
1721 be needed, we can discard it later. We will never need this
1722 section when generating a shared object, since they do not use
1723 copy relocs. */
1724 if (! info->shared)
1725 {
3d4d4302
AM		 1726 s = bfd_make_section_anyway_with_flags (abfd,
1727 (bed->default_use_rela_p
1728 ? ".rela.bss" : ".rel.bss"),
1729 flags | SEC_READONLY);
6edf0760
NC		 1730 htab->srelbss = s;
1731 if (s == NULL
6edf0760
NC		 1732 || ! bfd_set_section_alignment (abfd, s, ptralign))
1733 return FALSE;
1734 }
1735 }
1736
1737 return TRUE;
1738}
1739
1740/* Copy the extra info we tack onto an elf_link_hash_entry. */
41978308 1741
6edf0760 1742static void
fcfa13d2 1743m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
6edf0760
NC		 1744 struct elf_link_hash_entry *dir,
1745 struct elf_link_hash_entry *ind)
1746{
47b0e7ad
NC		 1747 struct elf_m32r_link_hash_entry * edir;
1748 struct elf_m32r_link_hash_entry * eind;
41978308 1749
6edf0760
NC		 1750 edir = (struct elf_m32r_link_hash_entry *) dir;
1751 eind = (struct elf_m32r_link_hash_entry *) ind;
41978308 1752
6edf0760
NC		 1753 if (eind->dyn_relocs != NULL)
1754 {
1755 if (edir->dyn_relocs != NULL)
1756 {
1757 struct elf_m32r_dyn_relocs **pp;
1758 struct elf_m32r_dyn_relocs *p;
41978308 1759
fcfa13d2 1760 /* Add reloc counts against the indirect sym to the direct sym
6edf0760 1761 list. Merge any entries against the same section. */
47b0e7ad 1762 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC		 1763 {
1764 struct elf_m32r_dyn_relocs *q;
41978308 1765
6edf0760
NC		 1766 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1767 if (q->sec == p->sec)
1768 {
1769 q->pc_count += p->pc_count;
1770 q->count += p->count;
1771 *pp = p->next;
1772 break;
1773 }
1774 if (q == NULL)
1775 pp = &p->next;
1776 }
1777 *pp = edir->dyn_relocs;
1778 }
41978308 1779
6edf0760
NC		 1780 edir->dyn_relocs = eind->dyn_relocs;
1781 eind->dyn_relocs = NULL;
1782 }
41978308 1783
fcfa13d2 1784 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
6edf0760
NC		 1785}
1786
1787\f
1788/* Adjust a symbol defined by a dynamic object and referenced by a
1789 regular object. The current definition is in some section of the
1790 dynamic object, but we're not including those sections. We have to
1791 change the definition to something the rest of the link can
1792 understand. */
41978308 1793
6edf0760 1794static bfd_boolean
47b0e7ad
NC		 1795m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1796 struct elf_link_hash_entry *h)
6edf0760
NC		 1797{
1798 struct elf_m32r_link_hash_table *htab;
1799 struct elf_m32r_link_hash_entry *eh;
1800 struct elf_m32r_dyn_relocs *p;
1801 bfd *dynobj;
1802 asection *s;
6edf0760
NC		 1803
1804#ifdef DEBUG_PIC
47b0e7ad 1805 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1806#endif
41978308 1807
6edf0760 1808 dynobj = elf_hash_table (info)->dynobj;
41978308 1809
6edf0760
NC		 1810 /* Make sure we know what is going on here. */
1811 BFD_ASSERT (dynobj != NULL
f5385ebf 1812 && (h->needs_plt
f6e332e6 1813 || h->u.weakdef != NULL
f5385ebf
AM		 1814 || (h->def_dynamic
1815 && h->ref_regular
1816 && !h->def_regular)));
6edf0760 1817
6edf0760
NC		 1818 /* If this is a function, put it in the procedure linkage table. We
1819 will fill in the contents of the procedure linkage table later,
1820 when we know the address of the .got section. */
1821 if (h->type == STT_FUNC
f5385ebf 1822 || h->needs_plt)
6edf0760
NC		 1823 {
1824 if (! info->shared
f5385ebf
AM		 1825 && !h->def_dynamic
1826 && !h->ref_dynamic
6edf0760
NC		 1827 && h->root.type != bfd_link_hash_undefweak
1828 && h->root.type != bfd_link_hash_undefined)
1829 {
1830 /* This case can occur if we saw a PLT reloc in an input
1831 file, but the symbol was never referred to by a dynamic
1832 object. In such a case, we don't actually need to build
1833 a procedure linkage table, and we can just do a PCREL
1834 reloc instead. */
1835 h->plt.offset = (bfd_vma) -1;
f5385ebf 1836 h->needs_plt = 0;
6edf0760
NC		 1837 }
1838
1839 return TRUE;
1840 }
1841 else
1842 h->plt.offset = (bfd_vma) -1;
41978308 1843
6edf0760
NC		 1844 /* If this is a weak symbol, and there is a real definition, the
1845 processor independent code will have arranged for us to see the
1846 real definition first, and we can just use the same value. */
f6e332e6 1847 if (h->u.weakdef != NULL)
6edf0760 1848 {
f6e332e6
AM		 1849 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1850 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1851 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1852 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6edf0760
NC		 1853 return TRUE;
1854 }
41978308 1855
6edf0760
NC		 1856 /* This is a reference to a symbol defined by a dynamic object which
1857 is not a function. */
41978308 1858
6edf0760
NC		 1859 /* If we are creating a shared library, we must presume that the
1860 only references to the symbol are via the global offset table.
1861 For such cases we need not do anything here; the relocations will
1862 be handled correctly by relocate_section. */
1863 if (info->shared)
1864 return TRUE;
41978308 1865
6edf0760
NC		 1866 /* If there are no references to this symbol that do not use the
1867 GOT, we don't need to generate a copy reloc. */
f5385ebf 1868 if (!h->non_got_ref)
6edf0760
NC		 1869 return TRUE;
1870
1871 /* If -z nocopyreloc was given, we won't generate them either. */
1872 if (info->nocopyreloc)
1873 {
f5385ebf 1874 h->non_got_ref = 0;
6edf0760
NC		 1875 return TRUE;
1876 }
1877
1878 eh = (struct elf_m32r_link_hash_entry *) h;
1879 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1880 {
1881 s = p->sec->output_section;
1882 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1883 break;
1884 }
1885
1886 /* If we didn't find any dynamic relocs in sections which needs the
1887 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1888 the copy reloc. */
1889 if (p == NULL)
1890 {
f5385ebf 1891 h->non_got_ref = 0;
6edf0760
NC		 1892 return TRUE;
1893 }
1894
1895 /* We must allocate the symbol in our .dynbss section, which will
1896 become part of the .bss section of the executable. There will be
1897 an entry for this symbol in the .dynsym section. The dynamic
1898 object will contain position independent code, so all references
1899 from the dynamic object to this symbol will go through the global
1900 offset table. The dynamic linker will use the .dynsym entry to
1901 determine the address it must put in the global offset table, so
1902 both the dynamic object and the regular object will refer to the
1903 same memory location for the variable. */
41978308 1904
6edf0760 1905 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1906 if (htab == NULL)
1907 return FALSE;
1908
6edf0760
NC		 1909 s = htab->sdynbss;
1910 BFD_ASSERT (s != NULL);
41978308 1911
6edf0760
NC		 1912 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1913 to copy the initial value out of the dynamic object and into the
1914 runtime process image. We need to remember the offset into the
1915 .rela.bss section we are going to use. */
1d7e9d18 1916 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
6edf0760
NC		 1917 {
1918 asection *srel;
41978308 1919
6edf0760
NC		 1920 srel = htab->srelbss;
1921 BFD_ASSERT (srel != NULL);
eea6121a 1922 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1923 h->needs_copy = 1;
6edf0760 1924 }
41978308 1925
6cabe1ea 1926 return _bfd_elf_adjust_dynamic_copy (info, h, s);
6edf0760
NC		 1927}
1928
6edf0760
NC		 1929/* Allocate space in .plt, .got and associated reloc sections for
1930 dynamic relocs. */
41978308 1931
6edf0760 1932static bfd_boolean
47b0e7ad 1933allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 1934{
1935 struct bfd_link_info *info;
1936 struct elf_m32r_link_hash_table *htab;
1937 struct elf_m32r_link_hash_entry *eh;
1938 struct elf_m32r_dyn_relocs *p;
41978308 1939
6edf0760
NC		 1940 if (h->root.type == bfd_link_hash_indirect)
1941 return TRUE;
41978308 1942
6edf0760
NC		 1943 info = (struct bfd_link_info *) inf;
1944 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1945 if (htab == NULL)
1946 return FALSE;
41978308 1947
6edf0760 1948 eh = (struct elf_m32r_link_hash_entry *) h;
41978308 1949
6edf0760
NC		 1950 if (htab->root.dynamic_sections_created
1951 && h->plt.refcount > 0)
1952 {
1953 /* Make sure this symbol is output as a dynamic symbol.
1954 Undefined weak syms won't yet be marked as dynamic. */
1955 if (h->dynindx == -1
f5385ebf 1956 && !h->forced_local)
6edf0760 1957 {
c152c796 1958 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 1959 return FALSE;
1960 }
41978308 1961
c152c796 1962 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
6edf0760
NC		 1963 {
1964 asection *s = htab->splt;
41978308 1965
6edf0760
NC		 1966 /* If this is the first .plt entry, make room for the special
1967 first entry. */
eea6121a
AM		 1968 if (s->size == 0)
1969 s->size += PLT_ENTRY_SIZE;
41978308 1970
eea6121a 1971 h->plt.offset = s->size;
41978308 1972
6edf0760
NC		 1973 /* If this symbol is not defined in a regular file, and we are
1974 not generating a shared library, then set the symbol to this
1975 location in the .plt. This is required to make function
1976 pointers compare as equal between the normal executable and
1977 the shared library. */
1978 if (! info->shared
f5385ebf 1979 && !h->def_regular)
6edf0760
NC		 1980 {
1981 h->root.u.def.section = s;
1982 h->root.u.def.value = h->plt.offset;
1983 }
41978308 1984
6edf0760 1985 /* Make room for this entry. */
eea6121a 1986 s->size += PLT_ENTRY_SIZE;
41978308 1987
6edf0760
NC		 1988 /* We also need to make an entry in the .got.plt section, which
1989 will be placed in the .got section by the linker script. */
eea6121a 1990 htab->sgotplt->size += 4;
41978308 1991
6edf0760 1992 /* We also need to make an entry in the .rel.plt section. */
eea6121a 1993 htab->srelplt->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 1994 }
1995 else
1996 {
1997 h->plt.offset = (bfd_vma) -1;
f5385ebf 1998 h->needs_plt = 0;
6edf0760
NC		 1999 }
2000 }
2001 else
2002 {
2003 h->plt.offset = (bfd_vma) -1;
f5385ebf 2004 h->needs_plt = 0;
6edf0760 2005 }
41978308 2006
6edf0760
NC		 2007 if (h->got.refcount > 0)
2008 {
2009 asection *s;
2010 bfd_boolean dyn;
41978308 2011
6edf0760
NC		 2012 /* Make sure this symbol is output as a dynamic symbol.
2013 Undefined weak syms won't yet be marked as dynamic. */
2014 if (h->dynindx == -1
f5385ebf 2015 && !h->forced_local)
6edf0760 2016 {
c152c796 2017 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2018 return FALSE;
2019 }
41978308 2020
6edf0760
NC		 2021 s = htab->sgot;
2022
eea6121a
AM		 2023 h->got.offset = s->size;
2024 s->size += 4;
6edf0760 2025 dyn = htab->root.dynamic_sections_created;
c152c796 2026 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
eea6121a 2027 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2028 }
2029 else
2030 h->got.offset = (bfd_vma) -1;
41978308 2031
6edf0760
NC		 2032 if (eh->dyn_relocs == NULL)
2033 return TRUE;
41978308 2034
6edf0760
NC		 2035 /* In the shared -Bsymbolic case, discard space allocated for
2036 dynamic pc-relative relocs against symbols which turn out to be
2037 defined in regular objects. For the normal shared case, discard
2038 space for pc-relative relocs that have become local due to symbol
2039 visibility changes. */
2040
2041 if (info->shared)
2042 {
f5385ebf
AM		 2043 if (h->def_regular
2044 && (h->forced_local
6edf0760
NC		 2045 || info->symbolic))
2046 {
2047 struct elf_m32r_dyn_relocs **pp;
47b0e7ad
NC		 2048
2049 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC		 2050 {
2051 p->count -= p->pc_count;
2052 p->pc_count = 0;
2053 if (p->count == 0)
2054 *pp = p->next;
2055 else
2056 pp = &p->next;
2057 }
2058 }
22d606e9
AM		 2059
2060 /* Also discard relocs on undefined weak syms with non-default
2061 visibility. */
2062 if (eh->dyn_relocs != NULL
2063 && h->root.type == bfd_link_hash_undefweak)
2064 {
2065 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2066 eh->dyn_relocs = NULL;
2067
2068 /* Make sure undefined weak symbols are output as a dynamic
2069 symbol in PIEs. */
2070 else if (h->dynindx == -1
2071 && !h->forced_local)
2072 {
2073 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2074 return FALSE;
2075 }
2076 }
6edf0760
NC		 2077 }
2078 else
2079 {
2080 /* For the non-shared case, discard space for relocs against
2081 symbols which turn out to need copy relocs or are not
2082 dynamic. */
41978308 2083
f5385ebf
AM		 2084 if (!h->non_got_ref
2085 && ((h->def_dynamic
2086 && !h->def_regular)
6edf0760
NC		 2087 || (htab->root.dynamic_sections_created
2088 && (h->root.type == bfd_link_hash_undefweak
2089 || h->root.type == bfd_link_hash_undefined))))
2090 {
2091 /* Make sure this symbol is output as a dynamic symbol.
2092 Undefined weak syms won't yet be marked as dynamic. */
2093 if (h->dynindx == -1
f5385ebf 2094 && !h->forced_local)
6edf0760 2095 {
c152c796 2096 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2097 return FALSE;
2098 }
41978308 2099
6edf0760
NC		 2100 /* If that succeeded, we know we'll be keeping all the
2101 relocs. */
2102 if (h->dynindx != -1)
2103 goto keep;
2104 }
41978308 2105
6edf0760 2106 eh->dyn_relocs = NULL;
41978308 2107
6edf0760
NC		 2108 keep: ;
2109 }
41978308 2110
6edf0760
NC		 2111 /* Finally, allocate space. */
2112 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2113 {
2114 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2115 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 2116 }
41978308 2117
6edf0760
NC		 2118 return TRUE;
2119}
47b0e7ad 2120
6edf0760 2121/* Find any dynamic relocs that apply to read-only sections. */
41978308 2122
6edf0760 2123static bfd_boolean
47b0e7ad 2124readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 2125{
2126 struct elf_m32r_link_hash_entry *eh;
2127 struct elf_m32r_dyn_relocs *p;
2128
6edf0760
NC		 2129 eh = (struct elf_m32r_link_hash_entry *) h;
2130 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2131 {
2132 asection *s = p->sec->output_section;
252b5132 2133
6edf0760
NC		 2134 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2135 {
2136 struct bfd_link_info *info = (struct bfd_link_info *) inf;
252b5132 2137
6edf0760 2138 info->flags |= DF_TEXTREL;
252b5132 2139
6edf0760
NC		 2140 /* Not an error, just cut short the traversal. */
2141 return FALSE;
2142 }
252b5132 2143 }
6edf0760
NC		 2144 return TRUE;
2145}
252b5132 2146
6edf0760 2147/* Set the sizes of the dynamic sections. */
41978308 2148
6edf0760 2149static bfd_boolean
47b0e7ad
NC		 2150m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2151 struct bfd_link_info *info)
6edf0760
NC		 2152{
2153 struct elf_m32r_link_hash_table *htab;
2154 bfd *dynobj;
2155 asection *s;
2156 bfd_boolean relocs;
2157 bfd *ibfd;
2158
2159#ifdef DEBUG_PIC
47b0e7ad 2160 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC		 2161#endif
2162
2163 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 2164 if (htab == NULL)
2165 return FALSE;
2166
6edf0760
NC		 2167 dynobj = htab->root.dynobj;
2168 BFD_ASSERT (dynobj != NULL);
2169
2170 if (htab->root.dynamic_sections_created)
252b5132 2171 {
6edf0760 2172 /* Set the contents of the .interp section to the interpreter. */
80447b21 2173 if (info->executable)
6edf0760 2174 {
3d4d4302 2175 s = bfd_get_linker_section (dynobj, ".interp");
6edf0760 2176 BFD_ASSERT (s != NULL);
eea6121a 2177 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC		 2178 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2179 }
252b5132
RH		 2180 }
2181
6edf0760
NC		 2182 /* Set up .got offsets for local syms, and space for local dynamic
2183 relocs. */
c72f2fb2 2184 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
6edf0760
NC		 2185 {
2186 bfd_signed_vma *local_got;
2187 bfd_signed_vma *end_local_got;
2188 bfd_size_type locsymcount;
2189 Elf_Internal_Shdr *symtab_hdr;
2190 asection *srel;
252b5132 2191
6edf0760
NC		 2192 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2193 continue;
252b5132 2194
6edf0760
NC		 2195 for (s = ibfd->sections; s != NULL; s = s->next)
2196 {
2197 struct elf_m32r_dyn_relocs *p;
2198
2199 for (p = ((struct elf_m32r_dyn_relocs *)
2200 elf_section_data (s)->local_dynrel);
2201 p != NULL;
2202 p = p->next)
2203 {
2204 if (! bfd_is_abs_section (p->sec)
2205 && bfd_is_abs_section (p->sec->output_section))
2206 {
2207 /* Input section has been discarded, either because
2208 it is a copy of a linkonce section or due to
2209 linker script /DISCARD/, so we'll be discarding
2210 the relocs too. */
2211 }
2212 else if (p->count != 0)
2213 {
2214 srel = elf_section_data (p->sec)->sreloc;
eea6121a 2215 srel->size += p->count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2216 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2217 info->flags |= DF_TEXTREL;
2218 }
2219 }
2220 }
2221
2222 local_got = elf_local_got_refcounts (ibfd);
2223 if (!local_got)
2224 continue;
2225
2226 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2227 locsymcount = symtab_hdr->sh_info;
2228 end_local_got = local_got + locsymcount;
2229 s = htab->sgot;
2230 srel = htab->srelgot;
2231 for (; local_got < end_local_got; ++local_got)
2232 {
2233 if (*local_got > 0)
2234 {
eea6121a
AM		 2235 *local_got = s->size;
2236 s->size += 4;
6edf0760 2237 if (info->shared)
eea6121a 2238 srel->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2239 }
2240 else
2241 *local_got = (bfd_vma) -1;
2242 }
2243 }
2244
2245 /* Allocate global sym .plt and .got entries, and space for global
2246 sym dynamic relocs. */
47b0e7ad 2247 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC		 2248
2249 /* We now have determined the sizes of the various dynamic sections.
2250 Allocate memory for them. */
2251 relocs = FALSE;
2252 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2253 {
6edf0760
NC		 2254 if ((s->flags & SEC_LINKER_CREATED) == 0)
2255 continue;
252b5132 2256
6edf0760
NC		 2257 if (s == htab->splt
2258 || s == htab->sgot
c456f082
AM		 2259 || s == htab->sgotplt
2260 || s == htab->sdynbss)
6edf0760
NC		 2261 {
2262 /* Strip this section if we don't need it; see the
2263 comment below. */
2264 }
0112cd26 2265 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
6edf0760 2266 {
eea6121a 2267 if (s->size != 0 && s != htab->srelplt)
6edf0760
NC		 2268 relocs = TRUE;
2269
2270 /* We use the reloc_count field as a counter if we need
2271 to copy relocs into the output file. */
2272 s->reloc_count = 0;
2273 }
252b5132 2274 else
47b0e7ad
NC		 2275 /* It's not one of our sections, so don't allocate space. */
2276 continue;
6edf0760 2277
eea6121a 2278 if (s->size == 0)
6edf0760
NC		 2279 {
2280 /* If we don't need this section, strip it from the
2281 output file. This is mostly to handle .rela.bss and
2282 .rela.plt. We must create both sections in
2283 create_dynamic_sections, because they must be created
2284 before the linker maps input sections to output
2285 sections. The linker does that before
2286 adjust_dynamic_symbol is called, and it is that
2287 function which decides whether anything needs to go
2288 into these sections. */
8423293d 2289 s->flags |= SEC_EXCLUDE;
6edf0760
NC		 2290 continue;
2291 }
2292
c456f082
AM		 2293 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2294 continue;
2295
6edf0760
NC		 2296 /* Allocate memory for the section contents. We use bfd_zalloc
2297 here in case unused entries are not reclaimed before the
2298 section's contents are written out. This should not happen,
2299 but this way if it does, we get a R_M32R_NONE reloc instead
2300 of garbage. */
47b0e7ad 2301 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760
NC		 2302 if (s->contents == NULL)
2303 return FALSE;
2304 }
2305
2306 if (htab->root.dynamic_sections_created)
2307 {
2308 /* Add some entries to the .dynamic section. We fill in the
2309 values later, in m32r_elf_finish_dynamic_sections, but we
2310 must add the entries now so that we get the correct size for
2311 the .dynamic section. The DT_DEBUG entry is filled in by the
2312 dynamic linker and used by the debugger. */
2313#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2314 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6edf0760 2315
80447b21 2316 if (info->executable)
252b5132 2317 {
6edf0760
NC		 2318 if (! add_dynamic_entry (DT_DEBUG, 0))
2319 return FALSE;
252b5132 2320 }
6edf0760 2321
eea6121a 2322 if (htab->splt->size != 0)
6edf0760
NC		 2323 {
2324 if (! add_dynamic_entry (DT_PLTGOT, 0)
2325 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2326 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2327 || ! add_dynamic_entry (DT_JMPREL, 0))
2328 return FALSE;
2329 }
2330
2331 if (relocs)
2332 {
2333 if (! add_dynamic_entry (DT_RELA, 0)
2334 || ! add_dynamic_entry (DT_RELASZ, 0)
2335 || ! add_dynamic_entry (DT_RELAENT,
2336 sizeof (Elf32_External_Rela)))
2337 return FALSE;
2338
2339 /* If any dynamic relocs apply to a read-only section,
2340 then we need a DT_TEXTREL entry. */
2341 if ((info->flags & DF_TEXTREL) == 0)
2342 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
47b0e7ad 2343 info);
6edf0760
NC		 2344
2345 if ((info->flags & DF_TEXTREL) != 0)
2346 {
2347 if (! add_dynamic_entry (DT_TEXTREL, 0))
2348 return FALSE;
2349 }
2350 }
252b5132 2351 }
6edf0760
NC		 2352#undef add_dynamic_entry
2353
2354 return TRUE;
252b5132 2355}
47b0e7ad 2356
252b5132
RH		 2357/* Relocate an M32R/D ELF section.
2358 There is some attempt to make this function usable for many architectures,
f0fe0e16 2359 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH		 2360
2361 The RELOCATE_SECTION function is called by the new ELF backend linker
2362 to handle the relocations for a section.
2363
2364 The relocs are always passed as Rela structures; if the section
2365 actually uses Rel structures, the r_addend field will always be
2366 zero.
2367
2368 This function is responsible for adjust the section contents as
2369 necessary, and (if using Rela relocs and generating a
1049f94e 2370 relocatable output file) adjusting the reloc addend as
252b5132
RH		 2371 necessary.
2372
2373 This function does not have to worry about setting the reloc
2374 address or the reloc symbol index.
2375
2376 LOCAL_SYMS is a pointer to the swapped in local symbols.
2377
2378 LOCAL_SECTIONS is an array giving the section in the input file
2379 corresponding to the st_shndx field of each local symbol.
2380
2381 The global hash table entry for the global symbols can be found
2382 via elf_sym_hashes (input_bfd).
2383
1049f94e 2384 When generating relocatable output, this function must handle
252b5132
RH		 2385 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2386 going to be the section symbol corresponding to the output
2387 section, which means that the addend must be adjusted
2388 accordingly. */
2389
b34976b6 2390static bfd_boolean
47b0e7ad
NC		 2391m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2392 struct bfd_link_info *info,
2393 bfd *input_bfd,
2394 asection *input_section,
2395 bfd_byte *contents,
2396 Elf_Internal_Rela *relocs,
2397 Elf_Internal_Sym *local_syms,
2398 asection **local_sections)
252b5132
RH		 2399{
2400 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2401 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2402 Elf_Internal_Rela *rel, *relend;
2403 /* Assume success. */
b34976b6 2404 bfd_boolean ret = TRUE;
6edf0760
NC		 2405 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2406 bfd *dynobj;
2407 bfd_vma *local_got_offsets;
2408 asection *sgot, *splt, *sreloc;
07515404 2409 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760 2410
4dfe6ac6
NC		 2411 if (htab == NULL)
2412 return FALSE;
2413
6edf0760
NC		 2414 dynobj = htab->root.dynobj;
2415 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2416
6edf0760
NC		 2417 sgot = htab->sgot;
2418 splt = htab->splt;
2419 sreloc = NULL;
b491616a 2420
252b5132
RH		 2421 rel = relocs;
2422 relend = relocs + input_section->reloc_count;
2423 for (; rel < relend; rel++)
2424 {
2425 int r_type;
2426 reloc_howto_type *howto;
2427 unsigned long r_symndx;
6edf0760 2428 struct elf_link_hash_entry *h;
252b5132 2429 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
6edf0760
NC		 2430 ensure it's zero (we use REL relocs, not RELA). Therefore this
2431 should be assigning zero to `addend', but for clarity we use
2432 `r_addend'. */
252b5132
RH		 2433 bfd_vma addend = rel->r_addend;
2434 bfd_vma offset = rel->r_offset;
ab96bf03 2435 bfd_vma relocation;
252b5132
RH		 2436 Elf_Internal_Sym *sym;
2437 asection *sec;
2438 const char *sym_name;
2439 bfd_reloc_status_type r;
2440 const char *errmsg = NULL;
6edf0760 2441 bfd_boolean use_rel = FALSE;
252b5132
RH		 2442
2443 h = NULL;
2444 r_type = ELF32_R_TYPE (rel->r_info);
2445 if (r_type < 0 || r_type >= (int) R_M32R_max)
2446 {
d003868e
AM		 2447 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2448 input_bfd,
252b5132
RH		 2449 (int) r_type);
2450 bfd_set_error (bfd_error_bad_value);
b34976b6 2451 ret = FALSE;
252b5132
RH		 2452 continue;
2453 }
2454
47b0e7ad 2455 if ( r_type == R_M32R_GNU_VTENTRY
6edf0760
NC		 2456 || r_type == R_M32R_GNU_VTINHERIT
2457 || r_type == R_M32R_NONE
2458 || r_type == R_M32R_RELA_GNU_VTENTRY
2459 || r_type == R_M32R_RELA_GNU_VTINHERIT)
252b5132
RH		 2460 continue;
2461
6edf0760
NC		 2462 if (r_type <= R_M32R_GNU_VTENTRY)
2463 use_rel = TRUE;
2464
252b5132
RH		 2465 howto = m32r_elf_howto_table + r_type;
2466 r_symndx = ELF32_R_SYM (rel->r_info);
2467
ab96bf03
AM		 2468 sym = NULL;
2469 sec = NULL;
2470 h = NULL;
2471
2472 if (r_symndx < symtab_hdr->sh_info)
2473 {
2474 /* Local symbol. */
2475 sym = local_syms + r_symndx;
2476 sec = local_sections[r_symndx];
2477 sym_name = "<local symbol>";
2478
2479 if (!use_rel)
2480 {
2481 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2482 addend = rel->r_addend;
2483 }
2484 else
2485 {
2486 relocation = (sec->output_section->vma
2487 + sec->output_offset
2488 + sym->st_value);
2489 }
2490 }
2491 else
2492 {
2493 /* External symbol. */
2494 relocation = 0;
2495
2496 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8a5da09b
AM		 2497
2498 if (info->wrap_hash != NULL
2499 && (input_section->flags & SEC_DEBUGGING) != 0)
2500 h = ((struct elf_link_hash_entry *)
2501 unwrap_hash_lookup (info, input_bfd, &h->root));
2502
ab96bf03
AM		 2503 while (h->root.type == bfd_link_hash_indirect
2504 || h->root.type == bfd_link_hash_warning)
2505 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2506 sym_name = h->root.root.string;
2507
2508 if (h->root.type == bfd_link_hash_defined
2509 || h->root.type == bfd_link_hash_defweak)
2510 {
2511 bfd_boolean dyn;
2512 sec = h->root.u.def.section;
2513
2514 dyn = htab->root.dynamic_sections_created;
2515 sec = h->root.u.def.section;
2516 if (r_type == R_M32R_GOTPC24
2517 || (r_type == R_M32R_GOTPC_HI_ULO
2518 || r_type == R_M32R_GOTPC_HI_SLO
2519 || r_type == R_M32R_GOTPC_LO)
2520 || (r_type == R_M32R_26_PLTREL
2521 && h->plt.offset != (bfd_vma) -1)
2522 || ((r_type == R_M32R_GOT24
2523 || r_type == R_M32R_GOT16_HI_ULO
2524 || r_type == R_M32R_GOT16_HI_SLO
2525 || r_type == R_M32R_GOT16_LO)
2526 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2527 info->shared, h)
2528 && (! info->shared
2529 || (! info->symbolic && h->dynindx != -1)
2530 || !h->def_regular))
2531 || (info->shared
2532 && ((! info->symbolic && h->dynindx != -1)
2533 || !h->def_regular)
2534 && (((r_type == R_M32R_16_RELA
2535 || r_type == R_M32R_32_RELA
2536 || r_type == R_M32R_24_RELA
2537 || r_type == R_M32R_HI16_ULO_RELA
2538 || r_type == R_M32R_HI16_SLO_RELA
2539 || r_type == R_M32R_LO16_RELA)
2540 && !h->forced_local)
2541 || r_type == R_M32R_REL32
2542 || r_type == R_M32R_10_PCREL_RELA
2543 || r_type == R_M32R_18_PCREL_RELA
2544 || r_type == R_M32R_26_PCREL_RELA)
2545 && ((input_section->flags & SEC_ALLOC) != 0
2546 /* DWARF will emit R_M32R_16(24,32) relocations
2547 in its sections against symbols defined
2548 externally in shared libraries. We can't do
2549 anything with them here. */
2550 || ((input_section->flags & SEC_DEBUGGING) != 0
2551 && h->def_dynamic))))
2552 {
2553 /* In these cases, we don't need the relocation
2554 value. We check specially because in some
2555 obscure cases sec->output_section will be NULL. */
2556 }
2557 else if (sec->output_section != NULL)
2558 relocation = (h->root.u.def.value
2559 + sec->output_section->vma
2560 + sec->output_offset);
1d5316ab
AM		 2561 else if (!info->relocatable
2562 && (_bfd_elf_section_offset (output_bfd, info,
2563 input_section,
2564 rel->r_offset)
2565 != (bfd_vma) -1))
ab96bf03
AM		 2566 {
2567 (*_bfd_error_handler)
2568 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2569 input_bfd,
2570 input_section,
2571 (long) rel->r_offset,
2572 howto->name,
2573 h->root.root.string);
2574 }
2575 }
2576 else if (h->root.type == bfd_link_hash_undefweak)
2577 ;
2578 else if (info->unresolved_syms_in_objects == RM_IGNORE
2579 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2580 ;
2581 else if (!info->relocatable)
2582 {
2583 if (! ((*info->callbacks->undefined_symbol)
2584 (info, h->root.root.string, input_bfd,
2585 input_section, offset,
2586 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2587 || ELF_ST_VISIBILITY (h->other)))))
2588 return FALSE;
2589 }
2590 }
2591
dbaa2011 2592 if (sec != NULL && discarded_section (sec))
e4067dbb 2593 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2594 rel, 1, relend, howto, 0, contents);
ab96bf03
AM		 2595
2596 if (info->relocatable && !use_rel)
252b5132 2597 {
1049f94e 2598 /* This is a relocatable link. We don't have to change
252b5132
RH		 2599 anything, unless the reloc is against a section symbol,
2600 in which case we have to adjust according to where the
2601 section symbol winds up in the output section. */
ab96bf03
AM		 2602 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2603 rel->r_addend += sec->output_offset;
2604 continue;
2605 }
252b5132 2606
ab96bf03
AM		 2607 if (info->relocatable && use_rel)
2608 {
2609 /* This is a relocatable link. We don't have to change
2610 anything, unless the reloc is against a section symbol,
2611 in which case we have to adjust according to where the
2612 section symbol winds up in the output section. */
2613 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2614 continue;
252b5132 2615
ab96bf03 2616 addend += sec->output_offset;
252b5132 2617
252b5132
RH		 2618 /* If partial_inplace, we need to store any additional addend
2619 back in the section. */
2620 if (! howto->partial_inplace)
2621 continue;
2622 /* ??? Here is a nice place to call a special_function
2623 like handler. */
2624 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2625 r = _bfd_relocate_contents (howto, input_bfd,
2626 addend, contents + offset);
2627 else
2628 {
2629 Elf_Internal_Rela *lorel;
2630
2631 /* We allow an arbitrary number of HI16 relocs before the
2632 LO16 reloc. This permits gcc to emit the HI and LO relocs
2633 itself. */
2634 for (lorel = rel + 1;
2635 (lorel < relend
2636 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2637 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2638 lorel++)
2639 continue;
2640 if (lorel < relend
2641 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2642 {
2643 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2644 contents, addend);
2645 r = bfd_reloc_ok;
2646 }
2647 else
2648 r = _bfd_relocate_contents (howto, input_bfd,
2649 addend, contents + offset);
2650 }
252b5132
RH		 2651 }
2652 else
2653 {
252b5132 2654 /* Sanity check the address. */
07515404 2655 if (offset > high_address)
252b5132
RH		 2656 {
2657 r = bfd_reloc_outofrange;
2658 goto check_reloc;
2659 }
2660
2661 switch ((int) r_type)
2662 {
097f809a
NC		 2663 case R_M32R_GOTOFF:
2664 /* Relocation is relative to the start of the global offset
2665 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2666
097f809a
NC		 2667 ld24 rx. #label@GOTOFF + addend
2668 sub rx, r12. */
2669
2670 BFD_ASSERT (sgot != NULL);
2671
2672 relocation = -(relocation - sgot->output_section->vma);
2673 rel->r_addend = -rel->r_addend;
2674 break;
2675
2676 case R_M32R_GOTOFF_HI_ULO:
2677 case R_M32R_GOTOFF_HI_SLO:
2678 case R_M32R_GOTOFF_LO:
2679 BFD_ASSERT (sgot != NULL);
2680
2681 relocation -= sgot->output_section->vma;
2682
2683 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2684 && ((relocation + rel->r_addend) & 0x8000))
2685 rel->r_addend += 0x10000;
2686 break;
2687
6edf0760
NC		 2688 case R_M32R_GOTPC24:
2689 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2690 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2691 */
2692 relocation = sgot->output_section->vma;
2693 break;
2694
2695 case R_M32R_GOTPC_HI_ULO:
2696 case R_M32R_GOTPC_HI_SLO:
41978308 2697 case R_M32R_GOTPC_LO:
6edf0760
NC		 2698 {
2699 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2700 bl .+4
2701 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2702 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2703 or
2704 bl .+4
2705 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2706 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2707 */
2708 relocation = sgot->output_section->vma;
2709 relocation -= (input_section->output_section->vma
2710 + input_section->output_offset
2711 + rel->r_offset);
41978308 2712 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC		 2713 && ((relocation + rel->r_addend) & 0x8000))
2714 rel->r_addend += 0x10000;
2715
2716 break;
2717 }
2718 case R_M32R_GOT16_HI_ULO:
2719 case R_M32R_GOT16_HI_SLO:
41978308 2720 case R_M32R_GOT16_LO:
6edf0760
NC		 2721 /* Fall through. */
2722 case R_M32R_GOT24:
2723 /* Relocation is to the entry for this symbol in the global
2724 offset table. */
2725 BFD_ASSERT (sgot != NULL);
41978308 2726
6edf0760
NC		 2727 if (h != NULL)
2728 {
2729 bfd_boolean dyn;
2730 bfd_vma off;
41978308 2731
6edf0760
NC		 2732 off = h->got.offset;
2733 BFD_ASSERT (off != (bfd_vma) -1);
2734
2735 dyn = htab->root.dynamic_sections_created;
c152c796 2736 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6edf0760
NC		 2737 || (info->shared
2738 && (info->symbolic
2739 || h->dynindx == -1
f5385ebf
AM		 2740 || h->forced_local)
2741 && h->def_regular))
6edf0760
NC		 2742 {
2743 /* This is actually a static link, or it is a
2744 -Bsymbolic link and the symbol is defined
2745 locally, or the symbol was forced to be local
2746 because of a version file. We must initialize
2747 this entry in the global offset table. Since the
2748 offset must always be a multiple of 4, we use the
2749 least significant bit to record whether we have
2750 initialized it already.
41978308 2751
6edf0760
NC		 2752 When doing a dynamic link, we create a .rela.got
2753 relocation entry to initialize the value. This
2754 is done in the finish_dynamic_symbol routine. */
2755 if ((off & 1) != 0)
2756 off &= ~1;
2757 else
2758 {
2759 bfd_put_32 (output_bfd, relocation,
2760 sgot->contents + off);
2761 h->got.offset |= 1;
2762 }
2763 }
41978308 2764
6edf0760
NC		 2765 relocation = sgot->output_offset + off;
2766 }
2767 else
2768 {
2769 bfd_vma off;
2770 bfd_byte *loc;
41978308 2771
6edf0760
NC		 2772 BFD_ASSERT (local_got_offsets != NULL
2773 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2774
6edf0760 2775 off = local_got_offsets[r_symndx];
41978308 2776
6edf0760
NC		 2777 /* The offset must always be a multiple of 4. We use
2778 the least significant bit to record whether we have
2779 already processed this entry. */
2780 if ((off & 1) != 0)
2781 off &= ~1;
2782 else
2783 {
2784 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2785
6edf0760
NC		 2786 if (info->shared)
2787 {
2788 asection *srelgot;
2789 Elf_Internal_Rela outrel;
41978308 2790
6edf0760
NC		 2791 /* We need to generate a R_M32R_RELATIVE reloc
2792 for the dynamic linker. */
3d4d4302
AM		 2793 srelgot = bfd_get_linker_section (dynobj,
2794 ".rela.got");
6edf0760 2795 BFD_ASSERT (srelgot != NULL);
41978308 2796
6edf0760
NC		 2797 outrel.r_offset = (sgot->output_section->vma
2798 + sgot->output_offset
2799 + off);
2800 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2801 outrel.r_addend = relocation;
2802 loc = srelgot->contents;
47b0e7ad 2803 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2804 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2805 ++srelgot->reloc_count;
2806 }
41978308 2807
6edf0760
NC		 2808 local_got_offsets[r_symndx] |= 1;
2809 }
41978308 2810
6edf0760
NC		 2811 relocation = sgot->output_offset + off;
2812 }
2813 if ((r_type == R_M32R_GOT16_HI_SLO)
2814 && ((relocation + rel->r_addend) & 0x8000))
2815 rel->r_addend += 0x10000;
2816
2817 break;
41978308 2818
6edf0760
NC		 2819 case R_M32R_26_PLTREL:
2820 /* Relocation is to the entry for this symbol in the
2821 procedure linkage table. */
41978308 2822
6edf0760
NC		 2823 /* The native assembler will generate a 26_PLTREL reloc
2824 for a local symbol if you assemble a call from one
2825 section to another when using -K pic. */
2826 if (h == NULL)
2827 break;
2828
f5385ebf 2829 if (h->forced_local)
6edf0760
NC		 2830 break;
2831
2832 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC		 2833 /* We didn't make a PLT entry for this symbol. This
2834 happens when statically linking PIC code, or when
2835 using -Bsymbolic. */
2836 break;
41978308 2837
6edf0760
NC		 2838 relocation = (splt->output_section->vma
2839 + splt->output_offset
2840 + h->plt.offset);
2841 break;
41978308 2842
6edf0760 2843 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC		 2844 if ((relocation + rel->r_addend) & 0x8000)
2845 rel->r_addend += 0x10000;
6edf0760 2846 /* Fall through. */
47b0e7ad 2847
6edf0760
NC		 2848 case R_M32R_16_RELA:
2849 case R_M32R_24_RELA:
2850 case R_M32R_32_RELA:
157e7bd1 2851 case R_M32R_REL32:
8ce757c4 2852 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 2853 case R_M32R_18_PCREL_RELA:
2854 case R_M32R_26_PCREL_RELA:
2855 case R_M32R_HI16_ULO_RELA:
2856 case R_M32R_LO16_RELA:
6edf0760 2857 if (info->shared
cf35638d 2858 && r_symndx != STN_UNDEF
6edf0760 2859 && (input_section->flags & SEC_ALLOC) != 0
8ce757c4
NC		 2860 && (( r_type != R_M32R_10_PCREL_RELA
2861 && r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC		 2862 && r_type != R_M32R_26_PCREL_RELA
2863 && r_type != R_M32R_REL32)
6edf0760
NC		 2864 || (h != NULL
2865 && h->dynindx != -1
2866 && (! info->symbolic
f5385ebf 2867 || !h->def_regular))))
6edf0760
NC		 2868 {
2869 Elf_Internal_Rela outrel;
2870 bfd_boolean skip, relocate;
2871 bfd_byte *loc;
41978308 2872
6edf0760
NC		 2873 /* When generating a shared object, these relocations
2874 are copied into the output file to be resolved at run
2875 time. */
6edf0760
NC		 2876 if (sreloc == NULL)
2877 {
83bac4b0
NC		 2878 sreloc = _bfd_elf_get_dynamic_reloc_section
2879 (input_bfd, input_section, /*rela?*/ TRUE);
2880 if (sreloc == NULL)
2881 return FALSE;
6edf0760 2882 }
41978308 2883
6edf0760
NC		 2884 skip = FALSE;
2885 relocate = FALSE;
41978308 2886
6edf0760
NC		 2887 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2888 info,
2889 input_section,
2890 rel->r_offset);
2891 if (outrel.r_offset == (bfd_vma) -1)
2892 skip = TRUE;
2893 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2894 skip = relocate = TRUE;
6edf0760
NC		 2895 outrel.r_offset += (input_section->output_section->vma
2896 + input_section->output_offset);
41978308 2897
6edf0760
NC		 2898 if (skip)
2899 memset (&outrel, 0, sizeof outrel);
8ce757c4
NC		 2900 else if ( r_type == R_M32R_10_PCREL_RELA
2901 || r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC		 2902 || r_type == R_M32R_26_PCREL_RELA
2903 || r_type == R_M32R_REL32)
6edf0760
NC		 2904 {
2905 BFD_ASSERT (h != NULL && h->dynindx != -1);
2906 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2907 outrel.r_addend = rel->r_addend;
2908 }
2909 else
2910 {
2911 /* h->dynindx may be -1 if this symbol was marked to
2912 become local. */
2913 if (h == NULL
2914 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2915 && h->def_regular))
6edf0760
NC		 2916 {
2917 relocate = TRUE;
2918 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2919 outrel.r_addend = relocation + rel->r_addend;
2920 }
2921 else
2922 {
2923 BFD_ASSERT (h->dynindx != -1);
2924 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2925 outrel.r_addend = relocation + rel->r_addend;
2926 }
2927 }
2928
2929 loc = sreloc->contents;
47b0e7ad 2930 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2931 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2932 ++sreloc->reloc_count;
2933
2934 /* If this reloc is against an external symbol, we do
2935 not want to fiddle with the addend. Otherwise, we
2936 need to include the symbol value so that it becomes
2937 an addend for the dynamic reloc. */
2938 if (! relocate)
2939 continue;
8ce757c4 2940 break;
6edf0760 2941 }
8ce757c4
NC		 2942 else if (r_type != R_M32R_10_PCREL_RELA)
2943 break;
2944 /* Fall through. */
41978308 2945
252b5132
RH		 2946 case (int) R_M32R_10_PCREL :
2947 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2948 contents, offset,
2949 sec, relocation, addend);
6edf0760 2950 goto check_reloc;
252b5132
RH		 2951
2952 case (int) R_M32R_HI16_SLO :
2953 case (int) R_M32R_HI16_ULO :
2954 {
2955 Elf_Internal_Rela *lorel;
2956
2957 /* We allow an arbitrary number of HI16 relocs before the
2958 LO16 reloc. This permits gcc to emit the HI and LO relocs
2959 itself. */
2960 for (lorel = rel + 1;
2961 (lorel < relend
2962 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2963 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2964 lorel++)
2965 continue;
2966 if (lorel < relend
2967 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2968 {
2969 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2970 contents, relocation + addend);
2971 r = bfd_reloc_ok;
2972 }
2973 else
2974 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2975 contents, offset,
2976 relocation, addend);
2977 }
6edf0760
NC		 2978
2979 goto check_reloc;
252b5132 2980
af705ba8 2981 case (int) R_M32R_SDA16_RELA:
252b5132
RH		 2982 case (int) R_M32R_SDA16 :
2983 {
2984 const char *name;
2985
2986 BFD_ASSERT (sec != NULL);
a0f49396 2987 name = bfd_get_section_name (sec->owner, sec);
252b5132 2988
47b0e7ad 2989 if ( strcmp (name, ".sdata") == 0
252b5132
RH		 2990 || strcmp (name, ".sbss") == 0
2991 || strcmp (name, ".scommon") == 0)
2992 {
2993 bfd_vma sda_base;
2994 bfd *out_bfd = sec->output_section->owner;
2995
2996 r = m32r_elf_final_sda_base (out_bfd, info,
2997 &errmsg,
2998 &sda_base);
2999 if (r != bfd_reloc_ok)
3000 {
b34976b6 3001 ret = FALSE;
252b5132
RH		 3002 goto check_reloc;
3003 }
3004
3005 /* At this point `relocation' contains the object's
3006 address. */
3007 relocation -= sda_base;
3008 /* Now it contains the offset from _SDA_BASE_. */
3009 }
3010 else
3011 {
8f615d07 3012 (*_bfd_error_handler)
d003868e
AM		 3013 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3014 input_bfd,
3015 sec,
8f615d07 3016 sym_name,
d003868e 3017 m32r_elf_howto_table[(int) r_type].name);
252b5132 3018 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3019 ret = FALSE;
252b5132
RH		 3020 continue;
3021 }
3022 }
47b0e7ad 3023 /* Fall through. */
6edf0760
NC		 3024
3025 default : /* OLD_M32R_RELOC */
252b5132 3026
252b5132
RH		 3027 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3028 contents, offset,
3029 relocation, addend);
6edf0760 3030 goto check_reloc;
252b5132 3031 }
6edf0760
NC		 3032
3033 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3034 contents, rel->r_offset,
3035 relocation, rel->r_addend);
3036
252b5132
RH		 3037 }
3038
3039 check_reloc:
3040
3041 if (r != bfd_reloc_ok)
3042 {
3043 /* FIXME: This should be generic enough to go in a utility. */
3044 const char *name;
3045
3046 if (h != NULL)
3047 name = h->root.root.string;
3048 else
3049 {
3050 name = (bfd_elf_string_from_elf_section
3051 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3052 if (name == NULL || *name == '\0')
3053 name = bfd_section_name (input_bfd, sec);
3054 }
3055
3056 if (errmsg != NULL)
3057 goto common_error;
3058
3059 switch (r)
3060 {
3061 case bfd_reloc_overflow:
3062 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L		 3063 (info, (h ? &h->root : NULL), name, howto->name,
3064 (bfd_vma) 0, input_bfd, input_section, offset)))
b34976b6 3065 return FALSE;
252b5132
RH		 3066 break;
3067
3068 case bfd_reloc_undefined:
3069 if (! ((*info->callbacks->undefined_symbol)
3070 (info, name, input_bfd, input_section,
b34976b6
AM		 3071 offset, TRUE)))
3072 return FALSE;
252b5132
RH		 3073 break;
3074
3075 case bfd_reloc_outofrange:
3076 errmsg = _("internal error: out of range error");
3077 goto common_error;
3078
3079 case bfd_reloc_notsupported:
3080 errmsg = _("internal error: unsupported relocation error");
3081 goto common_error;
3082
3083 case bfd_reloc_dangerous:
3084 errmsg = _("internal error: dangerous error");
3085 goto common_error;
3086
3087 default:
3088 errmsg = _("internal error: unknown error");
3089 /* fall through */
3090
3091 common_error:
3092 if (!((*info->callbacks->warning)
3093 (info, errmsg, name, input_bfd, input_section,
3094 offset)))
b34976b6 3095 return FALSE;
252b5132
RH		 3096 break;
3097 }
3098 }
3099 }
3100
3101 return ret;
3102}
6edf0760
NC		 3103
3104/* Finish up dynamic symbol handling. We set the contents of various
3105 dynamic sections here. */
47b0e7ad 3106
6edf0760 3107static bfd_boolean
47b0e7ad
NC		 3108m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3109 struct bfd_link_info *info,
3110 struct elf_link_hash_entry *h,
3111 Elf_Internal_Sym *sym)
6edf0760
NC		 3112{
3113 struct elf_m32r_link_hash_table *htab;
6edf0760 3114 bfd_byte *loc;
41978308 3115
6edf0760 3116#ifdef DEBUG_PIC
47b0e7ad 3117 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3118#endif
41978308 3119
6edf0760 3120 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3121 if (htab == NULL)
3122 return FALSE;
3123
6edf0760
NC		 3124 if (h->plt.offset != (bfd_vma) -1)
3125 {
3126 asection *splt;
3127 asection *sgot;
3128 asection *srela;
3129
3130 bfd_vma plt_index;
3131 bfd_vma got_offset;
3132 Elf_Internal_Rela rela;
41978308 3133
6edf0760
NC		 3134 /* This symbol has an entry in the procedure linkage table. Set
3135 it up. */
41978308 3136
6edf0760 3137 BFD_ASSERT (h->dynindx != -1);
41978308 3138
6edf0760
NC		 3139 splt = htab->splt;
3140 sgot = htab->sgotplt;
3141 srela = htab->srelplt;
3142 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3143
3144 /* Get the index in the procedure linkage table which
3145 corresponds to this symbol. This is the index of this symbol
3146 in all the symbols for which we are making plt entries. The
3147 first entry in the procedure linkage table is reserved. */
3148 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3149
3150 /* Get the offset into the .got table of the entry that
3151 corresponds to this function. Each .got entry is 4 bytes.
3152 The first three are reserved. */
3153 got_offset = (plt_index + 3) * 4;
3154
3155 /* Fill in the entry in the procedure linkage table. */
3156 if (! info->shared)
3157 {
3158 bfd_put_32 (output_bfd,
3159 (PLT_ENTRY_WORD0b
3160 + (((sgot->output_section->vma
3161 + sgot->output_offset
3162 + got_offset) >> 16) & 0xffff)),
3163 splt->contents + h->plt.offset);
3164 bfd_put_32 (output_bfd,
3165 (PLT_ENTRY_WORD1b
3166 + ((sgot->output_section->vma
3167 + sgot->output_offset
3168 + got_offset) & 0xffff)),
3169 splt->contents + h->plt.offset + 4);
3170 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3171 splt->contents + h->plt.offset + 8);
3172 bfd_put_32 (output_bfd,
3173 (PLT_ENTRY_WORD3
3174 + plt_index * sizeof (Elf32_External_Rela)),
3175 splt->contents + h->plt.offset + 12);
3176 bfd_put_32 (output_bfd,
3177 (PLT_ENTRY_WORD4
3178 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3179 splt->contents + h->plt.offset + 16);
3180 }
3181 else
3182 {
3183 bfd_put_32 (output_bfd,
3184 PLT_ENTRY_WORD0 + got_offset,
3185 splt->contents + h->plt.offset);
3186 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3187 splt->contents + h->plt.offset + 4);
3188 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3189 splt->contents + h->plt.offset + 8);
3190 bfd_put_32 (output_bfd,
3191 (PLT_ENTRY_WORD3
3192 + plt_index * sizeof (Elf32_External_Rela)),
3193 splt->contents + h->plt.offset + 12);
3194 bfd_put_32 (output_bfd,
3195 (PLT_ENTRY_WORD4
3196 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3197 splt->contents + h->plt.offset + 16);
3198 }
41978308 3199
6edf0760
NC		 3200 /* Fill in the entry in the global offset table. */
3201 bfd_put_32 (output_bfd,
3202 (splt->output_section->vma
3203 + splt->output_offset
3204 + h->plt.offset
3205 + 12), /* same offset */
3206 sgot->contents + got_offset);
3207
3208 /* Fill in the entry in the .rela.plt section. */
3209 rela.r_offset = (sgot->output_section->vma
3210 + sgot->output_offset
3211 + got_offset);
3212 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3213 rela.r_addend = 0;
3214 loc = srela->contents;
47b0e7ad 3215 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3216 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3217
f5385ebf 3218 if (!h->def_regular)
6edf0760
NC		 3219 {
3220 /* Mark the symbol as undefined, rather than as defined in
3221 the .plt section. Leave the value alone. */
3222 sym->st_shndx = SHN_UNDEF;
3223 }
3224 }
3225
3226 if (h->got.offset != (bfd_vma) -1)
3227 {
3228 asection *sgot;
3229 asection *srela;
3230 Elf_Internal_Rela rela;
41978308 3231
6edf0760
NC		 3232 /* This symbol has an entry in the global offset table. Set it
3233 up. */
41978308 3234
6edf0760
NC		 3235 sgot = htab->sgot;
3236 srela = htab->srelgot;
3237 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3238
6edf0760
NC		 3239 rela.r_offset = (sgot->output_section->vma
3240 + sgot->output_offset
3241 + (h->got.offset &~ 1));
41978308 3242
6edf0760
NC		 3243 /* If this is a -Bsymbolic link, and the symbol is defined
3244 locally, we just want to emit a RELATIVE reloc. Likewise if
3245 the symbol was forced to be local because of a version file.
3246 The entry in the global offset table will already have been
3247 initialized in the relocate_section function. */
3248 if (info->shared
3249 && (info->symbolic
3250 || h->dynindx == -1
f5385ebf
AM		 3251 || h->forced_local)
3252 && h->def_regular)
6edf0760
NC		 3253 {
3254 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3255 rela.r_addend = (h->root.u.def.value
3256 + h->root.u.def.section->output_section->vma
3257 + h->root.u.def.section->output_offset);
3258 }
3259 else
3260 {
47b0e7ad 3261 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC		 3262 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3263 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3264 rela.r_addend = 0;
3265 }
41978308 3266
6edf0760 3267 loc = srela->contents;
47b0e7ad 3268 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3269 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3270 ++srela->reloc_count;
3271 }
41978308 3272
f5385ebf 3273 if (h->needs_copy)
6edf0760
NC		 3274 {
3275 asection *s;
3276 Elf_Internal_Rela rela;
41978308 3277
6edf0760 3278 /* This symbols needs a copy reloc. Set it up. */
41978308 3279
6edf0760
NC		 3280 BFD_ASSERT (h->dynindx != -1
3281 && (h->root.type == bfd_link_hash_defined
3282 || h->root.type == bfd_link_hash_defweak));
41978308 3283
3d4d4302 3284 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
6edf0760 3285 BFD_ASSERT (s != NULL);
41978308 3286
6edf0760
NC		 3287 rela.r_offset = (h->root.u.def.value
3288 + h->root.u.def.section->output_section->vma
3289 + h->root.u.def.section->output_offset);
3290 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3291 rela.r_addend = 0;
3292 loc = s->contents;
47b0e7ad 3293 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3294 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3295 ++s->reloc_count;
3296 }
41978308 3297
6edf0760 3298 /* Mark some specially defined symbols as absolute. */
9637f6ef 3299 if (h == htab->root.hdynamic || h == htab->root.hgot)
6edf0760 3300 sym->st_shndx = SHN_ABS;
41978308 3301
6edf0760
NC		 3302 return TRUE;
3303}
3304
3305
3306/* Finish up the dynamic sections. */
41978308 3307
6edf0760 3308static bfd_boolean
47b0e7ad
NC		 3309m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3310 struct bfd_link_info *info)
6edf0760
NC		 3311{
3312 struct elf_m32r_link_hash_table *htab;
3313 bfd *dynobj;
3314 asection *sdyn;
3315 asection *sgot;
3316
3317#ifdef DEBUG_PIC
47b0e7ad 3318 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3319#endif
41978308 3320
6edf0760 3321 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3322 if (htab == NULL)
3323 return FALSE;
3324
6edf0760
NC		 3325 dynobj = htab->root.dynobj;
3326
3327 sgot = htab->sgotplt;
3d4d4302 3328 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
41978308 3329
6edf0760
NC		 3330 if (htab->root.dynamic_sections_created)
3331 {
3332 asection *splt;
3333 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3334
6edf0760 3335 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3336
6edf0760 3337 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3338 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC		 3339
3340 for (; dyncon < dynconend; dyncon++)
3341 {
3342 Elf_Internal_Dyn dyn;
6edf0760 3343 asection *s;
41978308 3344
6edf0760 3345 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3346
6edf0760
NC		 3347 switch (dyn.d_tag)
3348 {
3349 default:
3350 break;
3351
3352 case DT_PLTGOT:
41978308 3353 s = htab->sgot->output_section;
6edf0760
NC		 3354 goto get_vma;
3355 case DT_JMPREL:
6edf0760
NC		 3356 s = htab->srelplt->output_section;
3357 get_vma:
3358 BFD_ASSERT (s != NULL);
3359 dyn.d_un.d_ptr = s->vma;
3360 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3361 break;
3362
3363 case DT_PLTRELSZ:
3364 s = htab->srelplt->output_section;
3365 BFD_ASSERT (s != NULL);
eea6121a 3366 dyn.d_un.d_val = s->size;
6edf0760
NC		 3367 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3368 break;
3369
3370 case DT_RELASZ:
3371 /* My reading of the SVR4 ABI indicates that the
3372 procedure linkage table relocs (DT_JMPREL) should be
3373 included in the overall relocs (DT_RELA). This is
3374 what Solaris does. However, UnixWare can not handle
3375 that case. Therefore, we override the DT_RELASZ entry
3376 here to make it not include the JMPREL relocs. Since
3377 the linker script arranges for .rela.plt to follow all
3378 other relocation sections, we don't have to worry
3379 about changing the DT_RELA entry. */
3380 if (htab->srelplt != NULL)
3381 {
3382 s = htab->srelplt->output_section;
eea6121a 3383 dyn.d_un.d_val -= s->size;
6edf0760
NC		 3384 }
3385 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3386 break;
3387 }
3388 }
41978308 3389
6edf0760
NC		 3390 /* Fill in the first entry in the procedure linkage table. */
3391 splt = htab->splt;
eea6121a 3392 if (splt && splt->size > 0)
6edf0760
NC		 3393 {
3394 if (info->shared)
3395 {
3396 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3397 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3398 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3399 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3400 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3401 }
3402 else
3403 {
3404 unsigned long addr;
3405 /* addr = .got + 4 */
3406 addr = sgot->output_section->vma + sgot->output_offset + 4;
3407 bfd_put_32 (output_bfd,
3408 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3409 splt->contents);
41978308 3410 bfd_put_32 (output_bfd,
6edf0760
NC		 3411 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3412 splt->contents + 4);
3413 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3414 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3415 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3416 }
3417
3418 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3419 PLT_ENTRY_SIZE;
3420 }
3421 }
3422
3423 /* Fill in the first three entries in the global offset table. */
eea6121a 3424 if (sgot && sgot->size > 0)
6edf0760
NC		 3425 {
3426 if (sdyn == NULL)
3427 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3428 else
3429 bfd_put_32 (output_bfd,
3430 sdyn->output_section->vma + sdyn->output_offset,
3431 sgot->contents);
3432 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3433 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3434
3435 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3436 }
41978308 3437
6edf0760
NC		 3438 return TRUE;
3439}
3440
252b5132
RH		 3441\f
3442/* Set the right machine number. */
47b0e7ad 3443
b34976b6 3444static bfd_boolean
47b0e7ad 3445m32r_elf_object_p (bfd *abfd)
252b5132
RH		 3446{
3447 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3448 {
3449 default:
3450 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3451 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3452 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3453 }
b34976b6 3454 return TRUE;
252b5132
RH		 3455}
3456
3457/* Store the machine number in the flags field. */
47b0e7ad 3458
252b5132 3459static void
47b0e7ad
NC		 3460m32r_elf_final_write_processing (bfd *abfd,
3461 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH		 3462{
3463 unsigned long val;
3464
3465 switch (bfd_get_mach (abfd))
3466 {
3467 default:
3468 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3469 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3470 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH		 3471 }
3472
3473 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3474 elf_elfheader (abfd)->e_flags |= val;
3475}
3476
c3668558 3477/* Function to keep M32R specific file flags. */
47b0e7ad 3478
b34976b6 3479static bfd_boolean
47b0e7ad 3480m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH		 3481{
3482 BFD_ASSERT (!elf_flags_init (abfd)
3483 || elf_elfheader (abfd)->e_flags == flags);
3484
3485 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM		 3486 elf_flags_init (abfd) = TRUE;
3487 return TRUE;
252b5132
RH		 3488}
3489
252b5132
RH		 3490/* Merge backend specific data from an object file to the output
3491 object file when linking. */
47b0e7ad 3492
b34976b6 3493static bfd_boolean
47b0e7ad 3494m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH		 3495{
3496 flagword out_flags;
3497 flagword in_flags;
3498
3499 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3500 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3501 return TRUE;
252b5132
RH		 3502
3503 in_flags = elf_elfheader (ibfd)->e_flags;
3504 out_flags = elf_elfheader (obfd)->e_flags;
3505
3506 if (! elf_flags_init (obfd))
3507 {
3508 /* If the input is the default architecture then do not
3509 bother setting the flags for the output architecture,
3510 instead allow future merges to do this. If no future
3511 merges ever set these flags then they will retain their
3512 unitialised values, which surprise surprise, correspond
3513 to the default values. */
3514 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3515 return TRUE;
c3668558 3516
b34976b6 3517 elf_flags_init (obfd) = TRUE;
252b5132
RH		 3518 elf_elfheader (obfd)->e_flags = in_flags;
3519
3520 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3521 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC		 3522 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3523 bfd_get_mach (ibfd));
252b5132 3524
b34976b6 3525 return TRUE;
252b5132
RH		 3526 }
3527
3528 /* Check flag compatibility. */
3529 if (in_flags == out_flags)
b34976b6 3530 return TRUE;
252b5132
RH		 3531
3532 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3533 {
88845958
NC		 3534 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3535 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3536 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3537 {
8f615d07 3538 (*_bfd_error_handler)
d003868e 3539 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH		 3540
3541 bfd_set_error (bfd_error_bad_value);
b34976b6 3542 return FALSE;
252b5132
RH		 3543 }
3544 }
3545
b34976b6 3546 return TRUE;
252b5132
RH		 3547}
3548
47b0e7ad
NC		 3549/* Display the flags field. */
3550
b34976b6 3551static bfd_boolean
47b0e7ad 3552m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH		 3553{
3554 FILE * file = (FILE *) ptr;
c3668558 3555
f12123c0 3556 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3557
252b5132 3558 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3559
252b5132 3560 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3561
252b5132
RH		 3562 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3563 {
3564 default:
3565 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3566 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3567 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3568 }
c3668558 3569
252b5132 3570 fputc ('\n', file);
c3668558 3571
b34976b6 3572 return TRUE;
252b5132
RH		 3573}
3574
47b0e7ad
NC		 3575static asection *
3576m32r_elf_gc_mark_hook (asection *sec,
07adf181 3577 struct bfd_link_info *info,
47b0e7ad
NC		 3578 Elf_Internal_Rela *rel,
3579 struct elf_link_hash_entry *h,
3580 Elf_Internal_Sym *sym)
252b5132
RH		 3581{
3582 if (h != NULL)
07adf181 3583 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH		 3584 {
3585 case R_M32R_GNU_VTINHERIT:
3586 case R_M32R_GNU_VTENTRY:
6edf0760
NC		 3587 case R_M32R_RELA_GNU_VTINHERIT:
3588 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM		 3589 return NULL;
3590 }
1e2f5b6e 3591
07adf181 3592 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH		 3593}
3594
b34976b6 3595static bfd_boolean
47b0e7ad
NC		 3596m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3597 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3598 asection *sec ATTRIBUTE_UNUSED,
3599 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3600{
6edf0760
NC		 3601 /* Update the got entry reference counts for the section being removed. */
3602 Elf_Internal_Shdr *symtab_hdr;
3603 struct elf_link_hash_entry **sym_hashes;
3604 bfd_signed_vma *local_got_refcounts;
3605 const Elf_Internal_Rela *rel, *relend;
6edf0760 3606
7dda2462
TG		 3607 if (info->relocatable)
3608 return TRUE;
3609
6edf0760
NC		 3610 elf_section_data (sec)->local_dynrel = NULL;
3611
3612 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3613 sym_hashes = elf_sym_hashes (abfd);
3614 local_got_refcounts = elf_local_got_refcounts (abfd);
3615
3616 relend = relocs + sec->reloc_count;
3617 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM		 3618 {
3619 unsigned long r_symndx;
3620 struct elf_link_hash_entry *h = NULL;
6edf0760 3621
3eb128b2
AM		 3622 r_symndx = ELF32_R_SYM (rel->r_info);
3623 if (r_symndx >= symtab_hdr->sh_info)
3624 {
3625 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3626 while (h->root.type == bfd_link_hash_indirect
3627 || h->root.type == bfd_link_hash_warning)
3628 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3629 }
6edf0760 3630
3eb128b2
AM		 3631 switch (ELF32_R_TYPE (rel->r_info))
3632 {
3633 case R_M32R_GOT16_HI_ULO:
3634 case R_M32R_GOT16_HI_SLO:
3635 case R_M32R_GOT16_LO:
3636 case R_M32R_GOTOFF:
3637 case R_M32R_GOTOFF_HI_ULO:
3638 case R_M32R_GOTOFF_HI_SLO:
3639 case R_M32R_GOTOFF_LO:
3640 case R_M32R_GOT24:
3641 case R_M32R_GOTPC_HI_ULO:
3642 case R_M32R_GOTPC_HI_SLO:
3643 case R_M32R_GOTPC_LO:
3644 case R_M32R_GOTPC24:
3645 if (h != NULL)
3646 {
3647 if (h->got.refcount > 0)
3648 h->got.refcount--;
3649 }
3650 else
3651 {
3652 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3653 local_got_refcounts[r_symndx]--;
3654 }
3655 break;
3656
3657 case R_M32R_16_RELA:
3658 case R_M32R_24_RELA:
3659 case R_M32R_32_RELA:
157e7bd1 3660 case R_M32R_REL32:
3eb128b2
AM		 3661 case R_M32R_HI16_ULO_RELA:
3662 case R_M32R_HI16_SLO_RELA:
3663 case R_M32R_LO16_RELA:
3664 case R_M32R_SDA16_RELA:
8ce757c4 3665 case R_M32R_10_PCREL_RELA:
3eb128b2
AM		 3666 case R_M32R_18_PCREL_RELA:
3667 case R_M32R_26_PCREL_RELA:
3668 if (h != NULL)
3669 {
3670 struct elf_m32r_link_hash_entry *eh;
3671 struct elf_m32r_dyn_relocs **pp;
3672 struct elf_m32r_dyn_relocs *p;
6edf0760 3673
3eb128b2
AM		 3674 if (!info->shared && h->plt.refcount > 0)
3675 h->plt.refcount -= 1;
6edf0760 3676
3eb128b2 3677 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3678
3eb128b2
AM		 3679 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3680 if (p->sec == sec)
3681 {
8ce757c4
NC		 3682 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3683 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3684 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
157e7bd1 3685 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3eb128b2
AM		 3686 p->pc_count -= 1;
3687 p->count -= 1;
3688 if (p->count == 0)
3689 *pp = p->next;
3690 break;
3691 }
3692 }
3693 break;
6edf0760 3694
3eb128b2
AM		 3695 case R_M32R_26_PLTREL:
3696 if (h != NULL)
3697 {
3698 if (h->plt.refcount > 0)
3699 h->plt.refcount--;
3700 }
3701 break;
6edf0760 3702
3eb128b2
AM		 3703 default:
3704 break;
3705 }
3706 }
6edf0760 3707
b34976b6 3708 return TRUE;
252b5132
RH		 3709}
3710
252b5132
RH		 3711/* Look through the relocs for a section during the first phase.
3712 Since we don't do .gots or .plts, we just need to consider the
3713 virtual table relocs for gc. */
c3668558 3714
b34976b6 3715static bfd_boolean
47b0e7ad
NC		 3716m32r_elf_check_relocs (bfd *abfd,
3717 struct bfd_link_info *info,
3718 asection *sec,
3719 const Elf_Internal_Rela *relocs)
252b5132
RH		 3720{
3721 Elf_Internal_Shdr *symtab_hdr;
5582a088 3722 struct elf_link_hash_entry **sym_hashes;
252b5132
RH		 3723 const Elf_Internal_Rela *rel;
3724 const Elf_Internal_Rela *rel_end;
6edf0760
NC		 3725 struct elf_m32r_link_hash_table *htab;
3726 bfd *dynobj;
c7e2358a 3727 asection *sreloc;
c3668558 3728
1049f94e 3729 if (info->relocatable)
b34976b6 3730 return TRUE;
c3668558 3731
c7e2358a 3732 sreloc = NULL;
252b5132
RH		 3733 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3734 sym_hashes = elf_sym_hashes (abfd);
c3668558 3735
6edf0760 3736 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3737 if (htab == NULL)
3738 return FALSE;
3739
6edf0760 3740 dynobj = htab->root.dynobj;
6edf0760 3741
252b5132
RH		 3742 rel_end = relocs + sec->reloc_count;
3743 for (rel = relocs; rel < rel_end; rel++)
3744 {
6edf0760 3745 int r_type;
252b5132
RH		 3746 struct elf_link_hash_entry *h;
3747 unsigned long r_symndx;
c3668558 3748
252b5132 3749 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3750 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH		 3751 if (r_symndx < symtab_hdr->sh_info)
3752 h = NULL;
3753 else
973a3492
L		 3754 {
3755 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3756 while (h->root.type == bfd_link_hash_indirect
3757 || h->root.type == bfd_link_hash_warning)
3758 h = (struct elf_link_hash_entry *) h->root.u.i.link;
81fbe831
AM		 3759
3760 /* PR15323, ref flags aren't set for references in the same
3761 object. */
3762 h->root.non_ir_ref = 1;
973a3492 3763 }
c3668558 3764
6edf0760
NC		 3765 /* Some relocs require a global offset table. */
3766 if (htab->sgot == NULL)
3767 {
3768 switch (r_type)
3769 {
3770 case R_M32R_GOT16_HI_ULO:
3771 case R_M32R_GOT16_HI_SLO:
097f809a
NC		 3772 case R_M32R_GOTOFF:
3773 case R_M32R_GOTOFF_HI_ULO:
3774 case R_M32R_GOTOFF_HI_SLO:
3775 case R_M32R_GOTOFF_LO:
6edf0760
NC		 3776 case R_M32R_GOT16_LO:
3777 case R_M32R_GOTPC24:
3778 case R_M32R_GOTPC_HI_ULO:
3779 case R_M32R_GOTPC_HI_SLO:
3780 case R_M32R_GOTPC_LO:
3781 case R_M32R_GOT24:
3782 if (dynobj == NULL)
3783 htab->root.dynobj = dynobj = abfd;
3784 if (! create_got_section (dynobj, info))
3785 return FALSE;
3786 break;
3787
3788 default:
3789 break;
3790 }
3791 }
3792
3793 switch (r_type)
252b5132 3794 {
6edf0760
NC		 3795 case R_M32R_GOT16_HI_ULO:
3796 case R_M32R_GOT16_HI_SLO:
41978308 3797 case R_M32R_GOT16_LO:
6edf0760
NC		 3798 case R_M32R_GOT24:
3799
3800 if (h != NULL)
3801 h->got.refcount += 1;
3802 else
3803 {
3804 bfd_signed_vma *local_got_refcounts;
3805
3806 /* This is a global offset table entry for a local
3807 symbol. */
3808 local_got_refcounts = elf_local_got_refcounts (abfd);
3809 if (local_got_refcounts == NULL)
3810 {
3811 bfd_size_type size;
3812
3813 size = symtab_hdr->sh_info;
3814 size *= sizeof (bfd_signed_vma);
47b0e7ad 3815 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC		 3816 if (local_got_refcounts == NULL)
3817 return FALSE;
3818 elf_local_got_refcounts (abfd) = local_got_refcounts;
3819 }
3820 local_got_refcounts[r_symndx] += 1;
3821 }
3822 break;
3823
3824 case R_M32R_26_PLTREL:
3825 /* This symbol requires a procedure linkage table entry. We
3826 actually build the entry in adjust_dynamic_symbol,
3827 because this might be a case of linking PIC code without
3828 linking in any dynamic objects, in which case we don't
3829 need to generate a procedure linkage table after all. */
41978308 3830
6edf0760
NC		 3831 /* If this is a local symbol, we resolve it directly without
3832 creating a procedure linkage table entry. */
3833 if (h == NULL)
3834 continue;
3835
f5385ebf 3836 if (h->forced_local)
6edf0760
NC		 3837 break;
3838
f5385ebf 3839 h->needs_plt = 1;
6edf0760
NC		 3840 h->plt.refcount += 1;
3841 break;
3842
3843 case R_M32R_16_RELA:
3844 case R_M32R_24_RELA:
3845 case R_M32R_32_RELA:
157e7bd1 3846 case R_M32R_REL32:
6edf0760
NC		 3847 case R_M32R_HI16_ULO_RELA:
3848 case R_M32R_HI16_SLO_RELA:
3849 case R_M32R_LO16_RELA:
3850 case R_M32R_SDA16_RELA:
8ce757c4 3851 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 3852 case R_M32R_18_PCREL_RELA:
3853 case R_M32R_26_PCREL_RELA:
3854
3855 if (h != NULL && !info->shared)
3856 {
f5385ebf 3857 h->non_got_ref = 1;
6edf0760
NC		 3858 h->plt.refcount += 1;
3859 }
3860
3861 /* If we are creating a shared library, and this is a reloc
3862 against a global symbol, or a non PC relative reloc
3863 against a local symbol, then we need to copy the reloc
3864 into the shared library. However, if we are linking with
3865 -Bsymbolic, we do not need to copy a reloc against a
3866 global symbol which is defined in an object we are
3867 including in the link (i.e., DEF_REGULAR is set). At
3868 this point we have not seen all the input files, so it is
3869 possible that DEF_REGULAR is not set now but will be set
3870 later (it is never cleared). We account for that
3871 possibility below by storing information in the
3872 dyn_relocs field of the hash table entry. A similar
3873 situation occurs when creating shared libraries and symbol
3874 visibility changes render the symbol local.
3875
3876 If on the other hand, we are creating an executable, we
3877 may need to keep relocations for symbols satisfied by a
3878 dynamic library if we manage to avoid copy relocs for the
3879 symbol. */
3880 if ((info->shared
3881 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3882 && (( r_type != R_M32R_26_PCREL_RELA
157e7bd1 3883 && r_type != R_M32R_18_PCREL_RELA
8ce757c4 3884 && r_type != R_M32R_10_PCREL_RELA
157e7bd1 3885 && r_type != R_M32R_REL32)
6edf0760
NC		 3886 || (h != NULL
3887 && (! info->symbolic
3888 || h->root.type == bfd_link_hash_defweak
f5385ebf 3889 || !h->def_regular))))
6edf0760
NC		 3890 || (!info->shared
3891 && (sec->flags & SEC_ALLOC) != 0
3892 && h != NULL
3893 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3894 || !h->def_regular)))
6edf0760
NC		 3895 {
3896 struct elf_m32r_dyn_relocs *p;
3897 struct elf_m32r_dyn_relocs **head;
3898
3899 if (dynobj == NULL)
3900 htab->root.dynobj = dynobj = abfd;
3901
3902 /* When creating a shared object, we must copy these
3903 relocs into the output file. We create a reloc
3904 section in dynobj and make room for the reloc. */
3905 if (sreloc == NULL)
3906 {
83bac4b0
NC		 3907 sreloc = _bfd_elf_make_dynamic_reloc_section
3908 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
41978308 3909
83bac4b0
NC		 3910 if (sreloc == NULL)
3911 return FALSE;
6edf0760 3912 }
41978308 3913
6edf0760
NC		 3914 /* If this is a global symbol, we count the number of
3915 relocations we need for this symbol. */
3916 if (h != NULL)
3917 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3918 else
3919 {
87d72d41 3920 /* Track dynamic relocs needed for local syms too. */
6edf0760 3921 asection *s;
6edfbbad 3922 void *vpp;
87d72d41 3923 Elf_Internal_Sym *isym;
6edf0760 3924
87d72d41
AM		 3925 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3926 abfd, r_symndx);
3927 if (isym == NULL)
3928 return FALSE;
3929
3930 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3931 if (s == NULL)
3932 s = sec;
6edf0760 3933
6edfbbad
DJ		 3934 vpp = &elf_section_data (s)->local_dynrel;
3935 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC		 3936 }
3937
3938 p = *head;
3939 if (p == NULL || p->sec != sec)
3940 {
3941 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC		 3942
3943 p = bfd_alloc (dynobj, amt);
6edf0760
NC		 3944 if (p == NULL)
3945 return FALSE;
3946 p->next = *head;
3947 *head = p;
3948 p->sec = sec;
3949 p->count = 0;
3950 p->pc_count = 0;
3951 }
3952
3953 p->count += 1;
8ce757c4
NC		 3954 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3955 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3956 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3957 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
6edf0760
NC		 3958 p->pc_count += 1;
3959 }
3960 break;
3961
252b5132
RH		 3962 /* This relocation describes the C++ object vtable hierarchy.
3963 Reconstruct it for later use during GC. */
6edf0760 3964 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 3965 case R_M32R_GNU_VTINHERIT:
c152c796 3966 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 3967 return FALSE;
252b5132 3968 break;
c3668558 3969
252b5132
RH		 3970 /* This relocation describes which C++ vtable entries are actually
3971 used. Record for later use during GC. */
3972 case R_M32R_GNU_VTENTRY:
d17e0c6e
JB		 3973 BFD_ASSERT (h != NULL);
3974 if (h != NULL
3975 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 3976 return FALSE;
252b5132 3977 break;
6edf0760 3978 case R_M32R_RELA_GNU_VTENTRY:
d17e0c6e
JB		 3979 BFD_ASSERT (h != NULL);
3980 if (h != NULL
3981 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC		 3982 return FALSE;
3983 break;
252b5132
RH		 3984 }
3985 }
c3668558 3986
b34976b6 3987 return TRUE;
252b5132 3988}
2f89ff8d 3989
b35d266b 3990static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 3991{
0112cd26
NC		 3992 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3993 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3994 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 3995};
3996
6edf0760 3997static enum elf_reloc_type_class
7e612e98
AM		 3998m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3999 const asection *rel_sec ATTRIBUTE_UNUSED,
4000 const Elf_Internal_Rela *rela)
6edf0760
NC		 4001{
4002 switch ((int) ELF32_R_TYPE (rela->r_info))
4003 {
47b0e7ad
NC		 4004 case R_M32R_RELATIVE: return reloc_class_relative;
4005 case R_M32R_JMP_SLOT: return reloc_class_plt;
4006 case R_M32R_COPY: return reloc_class_copy;
4007 default: return reloc_class_normal;
6edf0760
NC		 4008 }
4009}
252b5132 4010\f
252b5132 4011#define ELF_ARCH bfd_arch_m32r
ae95ffa6 4012#define ELF_TARGET_ID M32R_ELF_DATA
aa4f99bb
AO		 4013#define ELF_MACHINE_CODE EM_M32R
4014#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4015#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132 4016
6d00b590 4017#define TARGET_BIG_SYM m32r_elf32_vec
252b5132 4018#define TARGET_BIG_NAME "elf32-m32r"
6d00b590 4019#define TARGET_LITTLE_SYM m32r_elf32_le_vec
6edf0760 4020#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4021
6edf0760 4022#define elf_info_to_howto m32r_info_to_howto
252b5132
RH		 4023#define elf_info_to_howto_rel m32r_info_to_howto_rel
4024#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4025#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4026#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4027#define elf_backend_relocate_section m32r_elf_relocate_section
4028#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4029#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4030#define elf_backend_check_relocs m32r_elf_check_relocs
4031
6edf0760
NC		 4032#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4033#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4034#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
74541ad4
AM		 4035#define elf_backend_omit_section_dynsym \
4036 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
6edf0760
NC		 4037#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4038#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4039#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4040#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4041#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4042
252b5132 4043#define elf_backend_can_gc_sections 1
6edf0760 4044/*#if !USE_REL
b491616a 4045#define elf_backend_rela_normal 1
6edf0760
NC		 4046#endif*/
4047#define elf_backend_can_refcount 1
4048#define elf_backend_want_got_plt 1
4049#define elf_backend_plt_readonly 1
4050#define elf_backend_want_plt_sym 0
4051#define elf_backend_got_header_size 12
4052
4053#define elf_backend_may_use_rel_p 1
4054#ifdef USE_M32R_OLD_RELOC
4055#define elf_backend_default_use_rela_p 0
4056#define elf_backend_may_use_rela_p 0
4057#else
4058#define elf_backend_default_use_rela_p 1
4059#define elf_backend_may_use_rela_p 1
b491616a 4060#endif
6edf0760 4061
252b5132
RH		 4062#define elf_backend_object_p m32r_elf_object_p
4063#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH		 4064#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4065#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4066#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4067#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4068
252b5132 4069#include "elf32-target.h"
6edf0760 4070
47b0e7ad 4071#undef ELF_MAXPAGESIZE
6edf0760
NC		 4072#define ELF_MAXPAGESIZE 0x1000
4073
47b0e7ad 4074#undef TARGET_BIG_SYM
6d00b590 4075#define TARGET_BIG_SYM m32r_elf32_linux_vec
47b0e7ad 4076#undef TARGET_BIG_NAME
6edf0760 4077#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4078#undef TARGET_LITTLE_SYM
6d00b590 4079#define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
47b0e7ad 4080#undef TARGET_LITTLE_NAME
6edf0760 4081#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4082#undef elf32_bed
6edf0760
NC		 4083#define elf32_bed elf32_m32r_lin_bed
4084
4085#include "elf32-target.h"
4086
GDB Binutils - Deliverables
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