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[deliverable/binutils-gdb.git] / bfd / elf32-m32r.c
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252b5132 1/* M32R-specific support for 32-bit ELF.
b3adc24a 2 Copyright (C) 1996-2020 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
07d6d2b8
AM		 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 */
68
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 */
74
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. */
6edf0760 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
07d6d2b8
AM		 219#define DOIT(x) \
220 x = ( (x & ~reloc_entry->howto->dst_mask) | \
47b0e7ad
NC		 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);
07d6d2b8 230 bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
47b0e7ad
NC		 231 }
232 break;
233 case 2:
234 {
235 unsigned long x = bfd_get_32 (input_bfd, inplace_address);
236 DOIT (x);
07d6d2b8 237 bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
47b0e7ad
NC		 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 */
07d6d2b8
AM		 543 2, /* rightshift */
544 1, /* size (0 = byte, 1 = short, 2 = long) */
545 10, /* bitsize */
546 TRUE, /* pc_relative */
547 0, /* bitpos */
47b0e7ad
NC		 548 complain_overflow_signed, /* complain_on_overflow */
549 m32r_elf_10_pcrel_reloc, /* special_function */
550 "R_M32R_10_PCREL", /* name */
07d6d2b8
AM		 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 */
07d6d2b8
AM		 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 */
47b0e7ad
NC		 664
665 /* GNU extension to record C++ vtable member usage. */
07d6d2b8
AM		 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 */
47b0e7ad
NC		 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 746 HOWTO (R_M32R_10_PCREL_RELA, /* type */
07d6d2b8
AM		 747 2, /* rightshift */
748 1, /* size (0 = byte, 1 = short, 2 = long) */
749 10, /* bitsize */
750 TRUE, /* pc_relative */
751 0, /* bitpos */
47b0e7ad
NC		 752 complain_overflow_signed, /* complain_on_overflow */
753 m32r_elf_10_pcrel_reloc, /* special_function */
754 "R_M32R_10_PCREL_RELA",/* name */
07d6d2b8
AM		 755 FALSE, /* partial_inplace */
756 0xff, /* src_mask */
757 0xff, /* dst_mask */
47b0e7ad 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 */
07d6d2b8
AM		 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 */
07d6d2b8
AM		 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
f3185997 1275static bfd_boolean
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 {
695344c0 1285 /* xgettext:c-format */
0aa13fee
AM		 1286 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1287 abfd, r_type);
f3185997
NC		 1288 bfd_set_error (bfd_error_bad_value);
1289 return FALSE;
5860e3f8 1290 }
252b5132 1291 cache_ptr->howto = &m32r_elf_howto_table[r_type];
f3185997 1292 return TRUE;
252b5132 1293}
6edf0760 1294
f3185997 1295static bfd_boolean
47b0e7ad
NC		 1296m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1297 arelent *cache_ptr,
1298 Elf_Internal_Rela *dst)
6edf0760 1299{
f3185997
NC		 1300 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
1301
1302 if (r_type == (unsigned int) R_M32R_NONE
1303 || ((r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1304 && (r_type < (unsigned int) R_M32R_max)))
1305 {
1306 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1307 return TRUE;
1308 }
1309
1310 /* xgettext:c-format */
1311 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r_type);
1312 bfd_set_error (bfd_error_bad_value);
4b24dd1a 1313 return FALSE;
6edf0760
NC		 1314}
1315
252b5132
RH		 1316\f
1317/* Given a BFD section, try to locate the corresponding ELF section
1318 index. */
1319
47b0e7ad
NC		 1320static bfd_boolean
1321_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1322 asection *sec,
1323 int *retval)
252b5132 1324{
fd361982 1325 if (strcmp (bfd_section_name (sec), ".scommon") == 0)
252b5132
RH		 1326 {
1327 *retval = SHN_M32R_SCOMMON;
b34976b6 1328 return TRUE;
252b5132 1329 }
b34976b6 1330 return FALSE;
252b5132
RH		 1331}
1332
1333/* M32R ELF uses two common sections. One is the usual one, and the other
1334 is for small objects. All the small objects are kept together, and then
1335 referenced via one register, which yields faster assembler code. It is
1336 up to the compiler to emit an instruction to load the register with
1337 _SDA_BASE. This is what we use for the small common section. This
1338 approach is copied from elf32-mips.c. */
1339static asection m32r_elf_scom_section;
1340static asymbol m32r_elf_scom_symbol;
1341static asymbol *m32r_elf_scom_symbol_ptr;
1342
1343/* Handle the special M32R section numbers that a symbol may use. */
1344
47b0e7ad
NC		 1345static void
1346_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1347{
47b0e7ad 1348 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH		 1349
1350 switch (elfsym->internal_elf_sym.st_shndx)
1351 {
1352 case SHN_M32R_SCOMMON:
1353 if (m32r_elf_scom_section.name == NULL)
1354 {
1355 /* Initialize the small common section. */
1356 m32r_elf_scom_section.name = ".scommon";
1357 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1358 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1359 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1360 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1361 m32r_elf_scom_symbol.name = ".scommon";
1362 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1363 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1364 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1365 }
1366 asym->section = &m32r_elf_scom_section;
1367 asym->value = elfsym->internal_elf_sym.st_size;
1368 break;
1369 }
1370}
1371
1372/* Hook called by the linker routine which adds symbols from an object
1373 file. We must handle the special M32R section numbers here.
1374 We also keep watching for whether we need to create the sdata special
1375 linker sections. */
1376
b34976b6 1377static bfd_boolean
47b0e7ad
NC		 1378m32r_elf_add_symbol_hook (bfd *abfd,
1379 struct bfd_link_info *info,
1380 Elf_Internal_Sym *sym,
1381 const char **namep,
1382 flagword *flagsp ATTRIBUTE_UNUSED,
1383 asection **secp,
1384 bfd_vma *valp)
252b5132 1385{
0e1862bb 1386 if (! bfd_link_relocatable (info)
252b5132 1387 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1388 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1389 && is_elf_hash_table (info->hash))
252b5132
RH		 1390 {
1391 /* This is simpler than using _bfd_elf_create_linker_section
1392 (our needs are simpler than ppc's needs). Also
1393 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1394 section already exists a new one is created that follows it which
1395 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1396 struct elf_link_hash_entry *h;
14a793b2 1397 struct bfd_link_hash_entry *bh;
252b5132
RH		 1398 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1399
6edf0760 1400 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC		 1401 if (s == NULL)
1402 {
1403 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1404 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1405
3496cb2a
L		 1406 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1407 flags);
6edf0760
NC		 1408 if (s == NULL)
1409 return FALSE;
fd361982 1410 if (!bfd_set_section_alignment (s, 2))
a253d456 1411 return FALSE;
6edf0760
NC		 1412 }
1413
1414 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1415 FALSE, FALSE, FALSE);
1416
1417 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1418 && !(_bfd_generic_link_add_one_symbol (info,
1419 abfd,
1420 "_SDA_BASE_",
1421 BSF_GLOBAL,
1422 s,
1423 (bfd_vma) 32768,
47b0e7ad 1424 NULL,
6edf0760
NC		 1425 FALSE,
1426 get_elf_backend_data (abfd)->collect,
1427 &bh)))
1428 return FALSE;
1429 h = (struct elf_link_hash_entry *) bh;
1430 h->type = STT_OBJECT;
1431 }
1432
1433 switch (sym->st_shndx)
1434 {
1435 case SHN_M32R_SCOMMON:
1436 *secp = bfd_make_section_old_way (abfd, ".scommon");
1437 (*secp)->flags |= SEC_IS_COMMON;
1438 *valp = sym->st_size;
1439 break;
1440 }
1441
1442 return TRUE;
1443}
1444
1445/* We have to figure out the SDA_BASE value, so that we can adjust the
1446 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1447 BFD. If we can't find it, we're stuck. We cache it in the ELF
1448 target data. We don't need to adjust the symbol value for an
1449 external symbol if we are producing relocatable output. */
1450
1451static bfd_reloc_status_type
47b0e7ad
NC		 1452m32r_elf_final_sda_base (bfd *output_bfd,
1453 struct bfd_link_info *info,
1454 const char **error_message,
1455 bfd_vma *psb)
6edf0760
NC		 1456{
1457 if (elf_gp (output_bfd) == 0)
1458 {
1459 struct bfd_link_hash_entry *h;
1460
1461 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1462 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC		 1463 elf_gp (output_bfd) = (h->u.def.value
1464 + h->u.def.section->output_section->vma
1465 + h->u.def.section->output_offset);
1466 else
1467 {
1468 /* Only get the error once. */
1469 *psb = elf_gp (output_bfd) = 4;
1470 *error_message =
1471 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1472 return bfd_reloc_dangerous;
1473 }
1474 }
1475 *psb = elf_gp (output_bfd);
1476 return bfd_reloc_ok;
1477}
1478\f
1479/* Return size of a PLT entry. */
1480#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1481
1482/* The m32r linker needs to keep track of the number of relocs that it
1483 decides to copy in check_relocs for each symbol. This is so that
1484 it can discard PC relative relocs if it doesn't need them when
1485 linking with -Bsymbolic. We store the information in a field
1486 extending the regular ELF linker hash table. */
1487
1488/* This structure keeps track of the number of PC relative relocs we
1489 have copied for a given symbol. */
1490
1491struct elf_m32r_pcrel_relocs_copied
1492{
1493 /* Next section. */
1494 struct elf_m32r_pcrel_relocs_copied *next;
1495 /* A section in dynobj. */
1496 asection *section;
1497 /* Number of relocs copied in this section. */
1498 bfd_size_type count;
1499};
1500
6edf0760
NC		 1501/* m32r ELF linker hash table. */
1502
1503struct elf_m32r_link_hash_table
1504{
1505 struct elf_link_hash_table root;
1506
1507 /* Short-cuts to get to dynamic linker sections. */
6edf0760
NC		 1508 asection *sdynbss;
1509 asection *srelbss;
1510
87d72d41
AM		 1511 /* Small local sym cache. */
1512 struct sym_cache sym_cache;
6edf0760
NC		 1513};
1514
1515/* Traverse an m32r ELF linker hash table. */
1516
1517#define m32r_elf_link_hash_traverse(table, func, info) \
1518 (elf_link_hash_traverse \
1519 (&(table)->root, \
47b0e7ad 1520 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC		 1521 (info)))
1522
1523/* Get the m32r ELF linker hash table from a link_info structure. */
1524
6edf0760 1525#define m32r_elf_hash_table(p) \
4dfe6ac6
NC		 1526 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1527 == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
6edf0760 1528
6edf0760 1529/* Create an m32r ELF linker hash table. */
6edf0760
NC		 1530
1531static struct bfd_link_hash_table *
47b0e7ad 1532m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760
NC		 1533{
1534 struct elf_m32r_link_hash_table *ret;
986f0783 1535 size_t amt = sizeof (struct elf_m32r_link_hash_table);
41978308 1536
7bf52ea2 1537 ret = bfd_zmalloc (amt);
47b0e7ad 1538 if (ret == NULL)
6edf0760 1539 return NULL;
41978308 1540
66eb6687 1541 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
190eb1dd
L		 1542 _bfd_elf_link_hash_newfunc,
1543 sizeof (struct elf_link_hash_entry),
4dfe6ac6 1544 M32R_ELF_DATA))
6edf0760
NC		 1545 {
1546 free (ret);
1547 return NULL;
1548 }
41978308 1549
6edf0760
NC		 1550 return &ret->root.root;
1551}
1552
6edf0760
NC		 1553/* Create dynamic sections when linking against a dynamic object. */
1554
1555static bfd_boolean
47b0e7ad 1556m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760
NC		 1557{
1558 struct elf_m32r_link_hash_table *htab;
1559 flagword flags, pltflags;
47b0e7ad 1560 asection *s;
6edf0760
NC		 1561 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1562 int ptralign = 2; /* 32bit */
1563
1564 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1565 if (htab == NULL)
1566 return FALSE;
6edf0760
NC		 1567
1568 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1569 .rel[a].bss sections. */
6edf0760 1570 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
07d6d2b8 1571 | SEC_LINKER_CREATED);
6edf0760
NC		 1572
1573 pltflags = flags;
1574 pltflags |= SEC_CODE;
1575 if (bed->plt_not_loaded)
1576 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1577 if (bed->plt_readonly)
1578 pltflags |= SEC_READONLY;
1579
3d4d4302 1580 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
ce558b89 1581 htab->root.splt = s;
6edf0760 1582 if (s == NULL
fd361982 1583 || !bfd_set_section_alignment (s, bed->plt_alignment))
6edf0760
NC		 1584 return FALSE;
1585
1586 if (bed->want_plt_sym)
1587 {
1588 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
07d6d2b8 1589 .plt section. */
41978308
AM		 1590 struct bfd_link_hash_entry *bh = NULL;
1591 struct elf_link_hash_entry *h;
47b0e7ad 1592
6edf0760 1593 if (! (_bfd_generic_link_add_one_symbol
07d6d2b8
AM		 1594 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1595 (bfd_vma) 0, NULL, FALSE,
1596 get_elf_backend_data (abfd)->collect, &bh)))
1597 return FALSE;
41978308 1598 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1599 h->def_regular = 1;
6edf0760 1600 h->type = STT_OBJECT;
7325306f 1601 htab->root.hplt = h;
6edf0760 1602
0e1862bb 1603 if (bfd_link_pic (info)
07d6d2b8
AM		 1604 && ! bfd_elf_link_record_dynamic_symbol (info, h))
1605 return FALSE;
6edf0760
NC		 1606 }
1607
3d4d4302
AM		 1608 s = bfd_make_section_anyway_with_flags (abfd,
1609 bed->default_use_rela_p
1610 ? ".rela.plt" : ".rel.plt",
1611 flags | SEC_READONLY);
ce558b89 1612 htab->root.srelplt = s;
6edf0760 1613 if (s == NULL
fd361982 1614 || !bfd_set_section_alignment (s, ptralign))
6edf0760
NC		 1615 return FALSE;
1616
ce558b89
AM		 1617 if (htab->root.sgot == NULL
1618 && !_bfd_elf_create_got_section (abfd, info))
6edf0760
NC		 1619 return FALSE;
1620
6edf0760
NC		 1621 if (bed->want_dynbss)
1622 {
1623 /* The .dynbss section is a place to put symbols which are defined
07d6d2b8
AM		 1624 by dynamic objects, are referenced by regular objects, and are
1625 not functions. We must allocate space for them in the process
1626 image and use a R_*_COPY reloc to tell the dynamic linker to
1627 initialize them at run time. The linker script puts the .dynbss
1628 section into the .bss section of the final image. */
3d4d4302
AM		 1629 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1630 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1631 htab->sdynbss = s;
3496cb2a 1632 if (s == NULL)
07d6d2b8 1633 return FALSE;
6edf0760 1634 /* The .rel[a].bss section holds copy relocs. This section is not
07d6d2b8
AM		 1635 normally needed. We need to create it here, though, so that the
1636 linker will map it to an output section. We can't just create it
1637 only if we need it, because we will not know whether we need it
1638 until we have seen all the input files, and the first time the
1639 main linker code calls BFD after examining all the input files
1640 (size_dynamic_sections) the input sections have already been
1641 mapped to the output sections. If the section turns out not to
1642 be needed, we can discard it later. We will never need this
1643 section when generating a shared object, since they do not use
1644 copy relocs. */
0e1862bb 1645 if (! bfd_link_pic (info))
07d6d2b8
AM		 1646 {
1647 s = bfd_make_section_anyway_with_flags (abfd,
3d4d4302
AM		 1648 (bed->default_use_rela_p
1649 ? ".rela.bss" : ".rel.bss"),
1650 flags | SEC_READONLY);
07d6d2b8
AM		 1651 htab->srelbss = s;
1652 if (s == NULL
fd361982 1653 || !bfd_set_section_alignment (s, ptralign))
07d6d2b8
AM		 1654 return FALSE;
1655 }
6edf0760
NC		 1656 }
1657
1658 return TRUE;
1659}
1660
6edf0760
NC		 1661\f
1662/* Adjust a symbol defined by a dynamic object and referenced by a
1663 regular object. The current definition is in some section of the
1664 dynamic object, but we're not including those sections. We have to
1665 change the definition to something the rest of the link can
1666 understand. */
41978308 1667
6edf0760 1668static bfd_boolean
47b0e7ad
NC		 1669m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1670 struct elf_link_hash_entry *h)
6edf0760
NC		 1671{
1672 struct elf_m32r_link_hash_table *htab;
6edf0760
NC		 1673 bfd *dynobj;
1674 asection *s;
6edf0760
NC		 1675
1676#ifdef DEBUG_PIC
47b0e7ad 1677 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1678#endif
41978308 1679
6edf0760 1680 dynobj = elf_hash_table (info)->dynobj;
41978308 1681
6edf0760
NC		 1682 /* Make sure we know what is going on here. */
1683 BFD_ASSERT (dynobj != NULL
07d6d2b8
AM		 1684 && (h->needs_plt
1685 || h->is_weakalias
1686 || (h->def_dynamic
1687 && h->ref_regular
1688 && !h->def_regular)));
6edf0760 1689
6edf0760
NC		 1690 /* If this is a function, put it in the procedure linkage table. We
1691 will fill in the contents of the procedure linkage table later,
1692 when we know the address of the .got section. */
1693 if (h->type == STT_FUNC
f5385ebf 1694 || h->needs_plt)
6edf0760 1695 {
0e1862bb 1696 if (! bfd_link_pic (info)
07d6d2b8
AM		 1697 && !h->def_dynamic
1698 && !h->ref_dynamic
6edf0760
NC		 1699 && h->root.type != bfd_link_hash_undefweak
1700 && h->root.type != bfd_link_hash_undefined)
07d6d2b8
AM		 1701 {
1702 /* This case can occur if we saw a PLT reloc in an input
1703 file, but the symbol was never referred to by a dynamic
1704 object. In such a case, we don't actually need to build
1705 a procedure linkage table, and we can just do a PCREL
1706 reloc instead. */
1707 h->plt.offset = (bfd_vma) -1;
1708 h->needs_plt = 0;
1709 }
6edf0760
NC		 1710
1711 return TRUE;
1712 }
1713 else
1714 h->plt.offset = (bfd_vma) -1;
41978308 1715
6edf0760
NC		 1716 /* If this is a weak symbol, and there is a real definition, the
1717 processor independent code will have arranged for us to see the
1718 real definition first, and we can just use the same value. */
60d67dc8 1719 if (h->is_weakalias)
6edf0760 1720 {
60d67dc8
AM		 1721 struct elf_link_hash_entry *def = weakdef (h);
1722 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1723 h->root.u.def.section = def->root.u.def.section;
1724 h->root.u.def.value = def->root.u.def.value;
6edf0760
NC		 1725 return TRUE;
1726 }
41978308 1727
6edf0760
NC		 1728 /* This is a reference to a symbol defined by a dynamic object which
1729 is not a function. */
41978308 1730
6edf0760
NC		 1731 /* If we are creating a shared library, we must presume that the
1732 only references to the symbol are via the global offset table.
1733 For such cases we need not do anything here; the relocations will
1734 be handled correctly by relocate_section. */
0e1862bb 1735 if (bfd_link_pic (info))
6edf0760 1736 return TRUE;
41978308 1737
6edf0760
NC		 1738 /* If there are no references to this symbol that do not use the
1739 GOT, we don't need to generate a copy reloc. */
f5385ebf 1740 if (!h->non_got_ref)
6edf0760
NC		 1741 return TRUE;
1742
1743 /* If -z nocopyreloc was given, we won't generate them either. */
3bf083ed 1744 if (0 && info->nocopyreloc)
6edf0760 1745 {
f5385ebf 1746 h->non_got_ref = 0;
6edf0760
NC		 1747 return TRUE;
1748 }
1749
3bf083ed
AM		 1750 /* If we don't find any dynamic relocs in read-only sections, then
1751 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5dbc8b37 1752 if (0 && !_bfd_elf_readonly_dynrelocs (h))
6edf0760 1753 {
f5385ebf 1754 h->non_got_ref = 0;
6edf0760
NC		 1755 return TRUE;
1756 }
1757
1758 /* We must allocate the symbol in our .dynbss section, which will
1759 become part of the .bss section of the executable. There will be
1760 an entry for this symbol in the .dynsym section. The dynamic
1761 object will contain position independent code, so all references
1762 from the dynamic object to this symbol will go through the global
1763 offset table. The dynamic linker will use the .dynsym entry to
1764 determine the address it must put in the global offset table, so
1765 both the dynamic object and the regular object will refer to the
1766 same memory location for the variable. */
41978308 1767
6edf0760 1768 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1769 if (htab == NULL)
1770 return FALSE;
1771
6edf0760
NC		 1772 s = htab->sdynbss;
1773 BFD_ASSERT (s != NULL);
41978308 1774
6edf0760
NC		 1775 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1776 to copy the initial value out of the dynamic object and into the
1777 runtime process image. We need to remember the offset into the
1778 .rela.bss section we are going to use. */
1d7e9d18 1779 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
6edf0760
NC		 1780 {
1781 asection *srel;
41978308 1782
6edf0760
NC		 1783 srel = htab->srelbss;
1784 BFD_ASSERT (srel != NULL);
eea6121a 1785 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1786 h->needs_copy = 1;
6edf0760 1787 }
41978308 1788
6cabe1ea 1789 return _bfd_elf_adjust_dynamic_copy (info, h, s);
6edf0760
NC		 1790}
1791
6edf0760
NC		 1792/* Allocate space in .plt, .got and associated reloc sections for
1793 dynamic relocs. */
41978308 1794
6edf0760 1795static bfd_boolean
47b0e7ad 1796allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 1797{
1798 struct bfd_link_info *info;
1799 struct elf_m32r_link_hash_table *htab;
3bf083ed 1800 struct elf_dyn_relocs *p;
41978308 1801
6edf0760
NC		 1802 if (h->root.type == bfd_link_hash_indirect)
1803 return TRUE;
41978308 1804
6edf0760
NC		 1805 info = (struct bfd_link_info *) inf;
1806 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1807 if (htab == NULL)
1808 return FALSE;
41978308 1809
6edf0760
NC		 1810 if (htab->root.dynamic_sections_created
1811 && h->plt.refcount > 0)
1812 {
1813 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 1814 Undefined weak syms won't yet be marked as dynamic. */
6edf0760 1815 if (h->dynindx == -1
07d6d2b8
AM		 1816 && !h->forced_local)
1817 {
1818 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1819 return FALSE;
1820 }
41978308 1821
0e1862bb 1822 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
07d6d2b8
AM		 1823 {
1824 asection *s = htab->root.splt;
1825
1826 /* If this is the first .plt entry, make room for the special
1827 first entry. */
1828 if (s->size == 0)
1829 s->size += PLT_ENTRY_SIZE;
1830
1831 h->plt.offset = s->size;
1832
1833 /* If this symbol is not defined in a regular file, and we are
1834 not generating a shared library, then set the symbol to this
1835 location in the .plt. This is required to make function
1836 pointers compare as equal between the normal executable and
1837 the shared library. */
1838 if (! bfd_link_pic (info)
1839 && !h->def_regular)
1840 {
1841 h->root.u.def.section = s;
1842 h->root.u.def.value = h->plt.offset;
1843 }
1844
1845 /* Make room for this entry. */
1846 s->size += PLT_ENTRY_SIZE;
1847
1848 /* We also need to make an entry in the .got.plt section, which
1849 will be placed in the .got section by the linker script. */
1850 htab->root.sgotplt->size += 4;
1851
1852 /* We also need to make an entry in the .rel.plt section. */
1853 htab->root.srelplt->size += sizeof (Elf32_External_Rela);
1854 }
6edf0760 1855 else
07d6d2b8
AM		 1856 {
1857 h->plt.offset = (bfd_vma) -1;
1858 h->needs_plt = 0;
1859 }
6edf0760
NC		 1860 }
1861 else
1862 {
1863 h->plt.offset = (bfd_vma) -1;
f5385ebf 1864 h->needs_plt = 0;
6edf0760 1865 }
41978308 1866
6edf0760
NC		 1867 if (h->got.refcount > 0)
1868 {
1869 asection *s;
1870 bfd_boolean dyn;
41978308 1871
6edf0760 1872 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 1873 Undefined weak syms won't yet be marked as dynamic. */
6edf0760 1874 if (h->dynindx == -1
07d6d2b8
AM		 1875 && !h->forced_local)
1876 {
1877 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1878 return FALSE;
1879 }
41978308 1880
ce558b89 1881 s = htab->root.sgot;
6edf0760 1882
eea6121a
AM		 1883 h->got.offset = s->size;
1884 s->size += 4;
6edf0760 1885 dyn = htab->root.dynamic_sections_created;
0e1862bb 1886 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
07d6d2b8 1887 htab->root.srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 1888 }
1889 else
1890 h->got.offset = (bfd_vma) -1;
41978308 1891
190eb1dd 1892 if (h->dyn_relocs == NULL)
6edf0760 1893 return TRUE;
41978308 1894
6edf0760
NC		 1895 /* In the shared -Bsymbolic case, discard space allocated for
1896 dynamic pc-relative relocs against symbols which turn out to be
1897 defined in regular objects. For the normal shared case, discard
1898 space for pc-relative relocs that have become local due to symbol
1899 visibility changes. */
1900
0e1862bb 1901 if (bfd_link_pic (info))
6edf0760 1902 {
f5385ebf 1903 if (h->def_regular
07d6d2b8
AM		 1904 && (h->forced_local
1905 || info->symbolic))
1906 {
1907 struct elf_dyn_relocs **pp;
1908
190eb1dd 1909 for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
07d6d2b8
AM		 1910 {
1911 p->count -= p->pc_count;
1912 p->pc_count = 0;
1913 if (p->count == 0)
1914 *pp = p->next;
1915 else
1916 pp = &p->next;
1917 }
1918 }
22d606e9
AM		 1919
1920 /* Also discard relocs on undefined weak syms with non-default
1921 visibility. */
190eb1dd 1922 if (h->dyn_relocs != NULL
22d606e9
AM		 1923 && h->root.type == bfd_link_hash_undefweak)
1924 {
1925 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
190eb1dd 1926 h->dyn_relocs = NULL;
22d606e9
AM		 1927
1928 /* Make sure undefined weak symbols are output as a dynamic
1929 symbol in PIEs. */
1930 else if (h->dynindx == -1
1931 && !h->forced_local)
1932 {
1933 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1934 return FALSE;
1935 }
1936 }
6edf0760
NC		 1937 }
1938 else
1939 {
1940 /* For the non-shared case, discard space for relocs against
07d6d2b8
AM		 1941 symbols which turn out to need copy relocs or are not
1942 dynamic. */
41978308 1943
f5385ebf 1944 if (!h->non_got_ref
07d6d2b8
AM		 1945 && ((h->def_dynamic
1946 && !h->def_regular)
1947 || (htab->root.dynamic_sections_created
1948 && (h->root.type == bfd_link_hash_undefweak
1949 || h->root.type == bfd_link_hash_undefined))))
1950 {
1951 /* Make sure this symbol is output as a dynamic symbol.
1952 Undefined weak syms won't yet be marked as dynamic. */
1953 if (h->dynindx == -1
1954 && !h->forced_local)
1955 {
1956 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1957 return FALSE;
1958 }
1959
1960 /* If that succeeded, we know we'll be keeping all the
1961 relocs. */
1962 if (h->dynindx != -1)
1963 goto keep;
1964 }
41978308 1965
190eb1dd 1966 h->dyn_relocs = NULL;
41978308 1967
6edf0760
NC		 1968 keep: ;
1969 }
41978308 1970
6edf0760 1971 /* Finally, allocate space. */
190eb1dd 1972 for (p = h->dyn_relocs; p != NULL; p = p->next)
6edf0760
NC		 1973 {
1974 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 1975 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 1976 }
41978308 1977
6edf0760
NC		 1978 return TRUE;
1979}
47b0e7ad 1980
6edf0760 1981/* Set the sizes of the dynamic sections. */
41978308 1982
6edf0760 1983static bfd_boolean
47b0e7ad
NC		 1984m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
1985 struct bfd_link_info *info)
6edf0760
NC		 1986{
1987 struct elf_m32r_link_hash_table *htab;
1988 bfd *dynobj;
1989 asection *s;
1990 bfd_boolean relocs;
1991 bfd *ibfd;
1992
1993#ifdef DEBUG_PIC
47b0e7ad 1994 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC		 1995#endif
1996
1997 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1998 if (htab == NULL)
1999 return FALSE;
2000
6edf0760
NC		 2001 dynobj = htab->root.dynobj;
2002 BFD_ASSERT (dynobj != NULL);
2003
2004 if (htab->root.dynamic_sections_created)
252b5132 2005 {
6edf0760 2006 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 2007 if (bfd_link_executable (info) && !info->nointerp)
6edf0760 2008 {
3d4d4302 2009 s = bfd_get_linker_section (dynobj, ".interp");
6edf0760 2010 BFD_ASSERT (s != NULL);
eea6121a 2011 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC		 2012 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2013 }
252b5132
RH		 2014 }
2015
6edf0760
NC		 2016 /* Set up .got offsets for local syms, and space for local dynamic
2017 relocs. */
c72f2fb2 2018 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
6edf0760
NC		 2019 {
2020 bfd_signed_vma *local_got;
2021 bfd_signed_vma *end_local_got;
2022 bfd_size_type locsymcount;
2023 Elf_Internal_Shdr *symtab_hdr;
2024 asection *srel;
252b5132 2025
6edf0760 2026 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
07d6d2b8 2027 continue;
252b5132 2028
6edf0760 2029 for (s = ibfd->sections; s != NULL; s = s->next)
07d6d2b8
AM		 2030 {
2031 struct elf_dyn_relocs *p;
2032
2033 for (p = ((struct elf_dyn_relocs *)
2034 elf_section_data (s)->local_dynrel);
2035 p != NULL;
2036 p = p->next)
2037 {
2038 if (! bfd_is_abs_section (p->sec)
2039 && bfd_is_abs_section (p->sec->output_section))
2040 {
2041 /* Input section has been discarded, either because
2042 it is a copy of a linkonce section or due to
2043 linker script /DISCARD/, so we'll be discarding
2044 the relocs too. */
2045 }
2046 else if (p->count != 0)
2047 {
2048 srel = elf_section_data (p->sec)->sreloc;
2049 srel->size += p->count * sizeof (Elf32_External_Rela);
2050 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2051 info->flags |= DF_TEXTREL;
2052 }
2053 }
2054 }
6edf0760
NC		 2055
2056 local_got = elf_local_got_refcounts (ibfd);
2057 if (!local_got)
07d6d2b8 2058 continue;
6edf0760
NC		 2059
2060 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2061 locsymcount = symtab_hdr->sh_info;
2062 end_local_got = local_got + locsymcount;
ce558b89
AM		 2063 s = htab->root.sgot;
2064 srel = htab->root.srelgot;
6edf0760 2065 for (; local_got < end_local_got; ++local_got)
07d6d2b8
AM		 2066 {
2067 if (*local_got > 0)
2068 {
2069 *local_got = s->size;
2070 s->size += 4;
2071 if (bfd_link_pic (info))
2072 srel->size += sizeof (Elf32_External_Rela);
2073 }
2074 else
2075 *local_got = (bfd_vma) -1;
2076 }
6edf0760
NC		 2077 }
2078
2079 /* Allocate global sym .plt and .got entries, and space for global
2080 sym dynamic relocs. */
47b0e7ad 2081 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC		 2082
2083 /* We now have determined the sizes of the various dynamic sections.
2084 Allocate memory for them. */
2085 relocs = FALSE;
2086 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2087 {
6edf0760 2088 if ((s->flags & SEC_LINKER_CREATED) == 0)
07d6d2b8 2089 continue;
252b5132 2090
ce558b89 2091 if (s == htab->root.splt
07d6d2b8
AM		 2092 || s == htab->root.sgot
2093 || s == htab->root.sgotplt
c456f082 2094 || s == htab->sdynbss)
07d6d2b8
AM		 2095 {
2096 /* Strip this section if we don't need it; see the
2097 comment below. */
2098 }
fd361982 2099 else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
07d6d2b8
AM		 2100 {
2101 if (s->size != 0 && s != htab->root.srelplt)
2102 relocs = TRUE;
2103
2104 /* We use the reloc_count field as a counter if we need
2105 to copy relocs into the output file. */
2106 s->reloc_count = 0;
2107 }
252b5132 2108 else
47b0e7ad
NC		 2109 /* It's not one of our sections, so don't allocate space. */
2110 continue;
6edf0760 2111
eea6121a 2112 if (s->size == 0)
07d6d2b8
AM		 2113 {
2114 /* If we don't need this section, strip it from the
2115 output file. This is mostly to handle .rela.bss and
2116 .rela.plt. We must create both sections in
2117 create_dynamic_sections, because they must be created
2118 before the linker maps input sections to output
2119 sections. The linker does that before
2120 adjust_dynamic_symbol is called, and it is that
2121 function which decides whether anything needs to go
2122 into these sections. */
2123 s->flags |= SEC_EXCLUDE;
2124 continue;
2125 }
6edf0760 2126
c456f082
AM		 2127 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2128 continue;
2129
6edf0760 2130 /* Allocate memory for the section contents. We use bfd_zalloc
07d6d2b8
AM		 2131 here in case unused entries are not reclaimed before the
2132 section's contents are written out. This should not happen,
2133 but this way if it does, we get a R_M32R_NONE reloc instead
2134 of garbage. */
47b0e7ad 2135 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760 2136 if (s->contents == NULL)
07d6d2b8 2137 return FALSE;
6edf0760
NC		 2138 }
2139
3084d7a2 2140 return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs);
252b5132 2141}
47b0e7ad 2142
252b5132
RH		 2143/* Relocate an M32R/D ELF section.
2144 There is some attempt to make this function usable for many architectures,
f0fe0e16 2145 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH		 2146
2147 The RELOCATE_SECTION function is called by the new ELF backend linker
2148 to handle the relocations for a section.
2149
2150 The relocs are always passed as Rela structures; if the section
2151 actually uses Rel structures, the r_addend field will always be
2152 zero.
2153
2154 This function is responsible for adjust the section contents as
2155 necessary, and (if using Rela relocs and generating a
1049f94e 2156 relocatable output file) adjusting the reloc addend as
252b5132
RH		 2157 necessary.
2158
2159 This function does not have to worry about setting the reloc
2160 address or the reloc symbol index.
2161
2162 LOCAL_SYMS is a pointer to the swapped in local symbols.
2163
2164 LOCAL_SECTIONS is an array giving the section in the input file
2165 corresponding to the st_shndx field of each local symbol.
2166
2167 The global hash table entry for the global symbols can be found
2168 via elf_sym_hashes (input_bfd).
2169
1049f94e 2170 When generating relocatable output, this function must handle
252b5132
RH		 2171 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2172 going to be the section symbol corresponding to the output
2173 section, which means that the addend must be adjusted
2174 accordingly. */
2175
b34976b6 2176static bfd_boolean
47b0e7ad
NC		 2177m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2178 struct bfd_link_info *info,
2179 bfd *input_bfd,
2180 asection *input_section,
2181 bfd_byte *contents,
2182 Elf_Internal_Rela *relocs,
2183 Elf_Internal_Sym *local_syms,
2184 asection **local_sections)
252b5132
RH		 2185{
2186 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2187 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2188 Elf_Internal_Rela *rel, *relend;
2189 /* Assume success. */
b34976b6 2190 bfd_boolean ret = TRUE;
6edf0760 2191 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
6edf0760
NC		 2192 bfd_vma *local_got_offsets;
2193 asection *sgot, *splt, *sreloc;
07515404 2194 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760 2195
4dfe6ac6
NC		 2196 if (htab == NULL)
2197 return FALSE;
2198
6edf0760 2199 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2200
ce558b89
AM		 2201 sgot = htab->root.sgot;
2202 splt = htab->root.splt;
6edf0760 2203 sreloc = NULL;
b491616a 2204
252b5132
RH		 2205 rel = relocs;
2206 relend = relocs + input_section->reloc_count;
2207 for (; rel < relend; rel++)
2208 {
2209 int r_type;
2210 reloc_howto_type *howto;
2211 unsigned long r_symndx;
6edf0760 2212 struct elf_link_hash_entry *h;
252b5132 2213 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
07d6d2b8
AM		 2214 ensure it's zero (we use REL relocs, not RELA). Therefore this
2215 should be assigning zero to `addend', but for clarity we use
2216 `r_addend'. */
252b5132
RH		 2217 bfd_vma addend = rel->r_addend;
2218 bfd_vma offset = rel->r_offset;
ab96bf03 2219 bfd_vma relocation;
252b5132
RH		 2220 Elf_Internal_Sym *sym;
2221 asection *sec;
2222 const char *sym_name;
2223 bfd_reloc_status_type r;
2224 const char *errmsg = NULL;
6edf0760 2225 bfd_boolean use_rel = FALSE;
252b5132
RH		 2226
2227 h = NULL;
2228 r_type = ELF32_R_TYPE (rel->r_info);
2229 if (r_type < 0 || r_type >= (int) R_M32R_max)
2230 {
695344c0 2231 /* xgettext:c-format */
0aa13fee 2232 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4eca0228 2233 input_bfd, (int) r_type);
252b5132 2234 bfd_set_error (bfd_error_bad_value);
b34976b6 2235 ret = FALSE;
252b5132
RH		 2236 continue;
2237 }
2238
47b0e7ad 2239 if ( r_type == R_M32R_GNU_VTENTRY
07d6d2b8
AM		 2240 || r_type == R_M32R_GNU_VTINHERIT
2241 || r_type == R_M32R_NONE
2242 || r_type == R_M32R_RELA_GNU_VTENTRY
2243 || r_type == R_M32R_RELA_GNU_VTINHERIT)
2244 continue;
252b5132 2245
6edf0760 2246 if (r_type <= R_M32R_GNU_VTENTRY)
07d6d2b8 2247 use_rel = TRUE;
6edf0760 2248
252b5132
RH		 2249 howto = m32r_elf_howto_table + r_type;
2250 r_symndx = ELF32_R_SYM (rel->r_info);
2251
ab96bf03
AM		 2252 sym = NULL;
2253 sec = NULL;
2254 h = NULL;
2255
2256 if (r_symndx < symtab_hdr->sh_info)
2257 {
2258 /* Local symbol. */
2259 sym = local_syms + r_symndx;
2260 sec = local_sections[r_symndx];
2261 sym_name = "<local symbol>";
2262
2263 if (!use_rel)
2264 {
2265 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2266 addend = rel->r_addend;
2267 }
2268 else
2269 {
2270 relocation = (sec->output_section->vma
2271 + sec->output_offset
2272 + sym->st_value);
2273 }
2274 }
2275 else
2276 {
2277 /* External symbol. */
2278 relocation = 0;
2279
2280 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8a5da09b
AM		 2281
2282 if (info->wrap_hash != NULL
2283 && (input_section->flags & SEC_DEBUGGING) != 0)
2284 h = ((struct elf_link_hash_entry *)
2285 unwrap_hash_lookup (info, input_bfd, &h->root));
2286
ab96bf03
AM		 2287 while (h->root.type == bfd_link_hash_indirect
2288 || h->root.type == bfd_link_hash_warning)
2289 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2290 sym_name = h->root.root.string;
2291
2292 if (h->root.type == bfd_link_hash_defined
2293 || h->root.type == bfd_link_hash_defweak)
2294 {
2295 bfd_boolean dyn;
2296 sec = h->root.u.def.section;
2297
2298 dyn = htab->root.dynamic_sections_created;
2299 sec = h->root.u.def.section;
2300 if (r_type == R_M32R_GOTPC24
2301 || (r_type == R_M32R_GOTPC_HI_ULO
2302 || r_type == R_M32R_GOTPC_HI_SLO
2303 || r_type == R_M32R_GOTPC_LO)
2304 || (r_type == R_M32R_26_PLTREL
2305 && h->plt.offset != (bfd_vma) -1)
2306 || ((r_type == R_M32R_GOT24
2307 || r_type == R_M32R_GOT16_HI_ULO
2308 || r_type == R_M32R_GOT16_HI_SLO
2309 || r_type == R_M32R_GOT16_LO)
2310 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L		 2311 bfd_link_pic (info),
2312 h)
2313 && (! bfd_link_pic (info)
ab96bf03
AM		 2314 || (! info->symbolic && h->dynindx != -1)
2315 || !h->def_regular))
0e1862bb 2316 || (bfd_link_pic (info)
ab96bf03
AM		 2317 && ((! info->symbolic && h->dynindx != -1)
2318 || !h->def_regular)
2319 && (((r_type == R_M32R_16_RELA
2320 || r_type == R_M32R_32_RELA
2321 || r_type == R_M32R_24_RELA
2322 || r_type == R_M32R_HI16_ULO_RELA
2323 || r_type == R_M32R_HI16_SLO_RELA
2324 || r_type == R_M32R_LO16_RELA)
2325 && !h->forced_local)
2326 || r_type == R_M32R_REL32
2327 || r_type == R_M32R_10_PCREL_RELA
2328 || r_type == R_M32R_18_PCREL_RELA
2329 || r_type == R_M32R_26_PCREL_RELA)
2330 && ((input_section->flags & SEC_ALLOC) != 0
2331 /* DWARF will emit R_M32R_16(24,32) relocations
2332 in its sections against symbols defined
2333 externally in shared libraries. We can't do
2334 anything with them here. */
2335 || ((input_section->flags & SEC_DEBUGGING) != 0
2336 && h->def_dynamic))))
2337 {
2338 /* In these cases, we don't need the relocation
2339 value. We check specially because in some
2340 obscure cases sec->output_section will be NULL. */
2341 }
2342 else if (sec->output_section != NULL)
2343 relocation = (h->root.u.def.value
2344 + sec->output_section->vma
2345 + sec->output_offset);
0e1862bb 2346 else if (!bfd_link_relocatable (info)
1d5316ab
AM		 2347 && (_bfd_elf_section_offset (output_bfd, info,
2348 input_section,
2349 rel->r_offset)
2350 != (bfd_vma) -1))
ab96bf03 2351 {
4eca0228 2352 _bfd_error_handler
695344c0 2353 /* xgettext:c-format */
2dcf00ce 2354 (_("%pB(%pA+%#" PRIx64 "): unresolvable %s relocation "
d42c267e 2355 "against symbol `%s'"),
ab96bf03
AM		 2356 input_bfd,
2357 input_section,
2dcf00ce 2358 (uint64_t) rel->r_offset,
ab96bf03
AM		 2359 howto->name,
2360 h->root.root.string);
2361 }
2362 }
2363 else if (h->root.type == bfd_link_hash_undefweak)
2364 ;
2365 else if (info->unresolved_syms_in_objects == RM_IGNORE
2366 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2367 ;
0e1862bb 2368 else if (!bfd_link_relocatable (info))
95a51568
FS		 2369 info->callbacks->undefined_symbol
2370 (info, h->root.root.string, input_bfd, input_section, offset,
2371 (info->unresolved_syms_in_objects == RM_DIAGNOSE
2372 && !info->warn_unresolved_syms)
2373 || ELF_ST_VISIBILITY (h->other));
2374 }
ab96bf03 2375
dbaa2011 2376 if (sec != NULL && discarded_section (sec))
e4067dbb 2377 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2378 rel, 1, relend, howto, 0, contents);
ab96bf03 2379
0e1862bb 2380 if (bfd_link_relocatable (info) && !use_rel)
252b5132 2381 {
1049f94e 2382 /* This is a relocatable link. We don't have to change
252b5132
RH		 2383 anything, unless the reloc is against a section symbol,
2384 in which case we have to adjust according to where the
2385 section symbol winds up in the output section. */
ab96bf03
AM		 2386 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2387 rel->r_addend += sec->output_offset;
2388 continue;
2389 }
252b5132 2390
0e1862bb 2391 if (bfd_link_relocatable (info) && use_rel)
ab96bf03
AM		 2392 {
2393 /* This is a relocatable link. We don't have to change
2394 anything, unless the reloc is against a section symbol,
2395 in which case we have to adjust according to where the
2396 section symbol winds up in the output section. */
2397 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2398 continue;
252b5132 2399
ab96bf03 2400 addend += sec->output_offset;
252b5132 2401
252b5132
RH		 2402 /* If partial_inplace, we need to store any additional addend
2403 back in the section. */
2404 if (! howto->partial_inplace)
2405 continue;
2406 /* ??? Here is a nice place to call a special_function
2407 like handler. */
2408 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2409 r = _bfd_relocate_contents (howto, input_bfd,
2410 addend, contents + offset);
2411 else
2412 {
2413 Elf_Internal_Rela *lorel;
2414
2415 /* We allow an arbitrary number of HI16 relocs before the
2416 LO16 reloc. This permits gcc to emit the HI and LO relocs
2417 itself. */
2418 for (lorel = rel + 1;
2419 (lorel < relend
2420 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2421 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2422 lorel++)
2423 continue;
2424 if (lorel < relend
2425 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2426 {
2427 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2428 contents, addend);
2429 r = bfd_reloc_ok;
2430 }
2431 else
2432 r = _bfd_relocate_contents (howto, input_bfd,
2433 addend, contents + offset);
2434 }
252b5132
RH		 2435 }
2436 else
2437 {
252b5132 2438 /* Sanity check the address. */
07515404 2439 if (offset > high_address)
252b5132
RH		 2440 {
2441 r = bfd_reloc_outofrange;
2442 goto check_reloc;
2443 }
2444
2445 switch ((int) r_type)
2446 {
07d6d2b8
AM		 2447 case R_M32R_GOTOFF:
2448 /* Relocation is relative to the start of the global offset
2449 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2450
07d6d2b8
AM		 2451 ld24 rx. #label@GOTOFF + addend
2452 sub rx, r12. */
097f809a 2453
07d6d2b8 2454 BFD_ASSERT (sgot != NULL);
097f809a 2455
07d6d2b8
AM		 2456 relocation = -(relocation - sgot->output_section->vma);
2457 rel->r_addend = -rel->r_addend;
2458 break;
097f809a 2459
07d6d2b8
AM		 2460 case R_M32R_GOTOFF_HI_ULO:
2461 case R_M32R_GOTOFF_HI_SLO:
2462 case R_M32R_GOTOFF_LO:
097f809a
NC		 2463 BFD_ASSERT (sgot != NULL);
2464
2465 relocation -= sgot->output_section->vma;
2466
2467 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2468 && ((relocation + rel->r_addend) & 0x8000))
2469 rel->r_addend += 0x10000;
2470 break;
2471
07d6d2b8
AM		 2472 case R_M32R_GOTPC24:
2473 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2474 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2475 */
2476 relocation = sgot->output_section->vma;
2477 break;
2478
2479 case R_M32R_GOTPC_HI_ULO:
2480 case R_M32R_GOTPC_HI_SLO:
2481 case R_M32R_GOTPC_LO:
2482 {
2483 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2484 bl .+4
2485 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2486 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2487 or
2488 bl .+4
2489 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2490 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2491 */
2492 relocation = sgot->output_section->vma;
2493 relocation -= (input_section->output_section->vma
2494 + input_section->output_offset
2495 + rel->r_offset);
2496 if ((r_type == R_M32R_GOTPC_HI_SLO)
2497 && ((relocation + rel->r_addend) & 0x8000))
2498 rel->r_addend += 0x10000;
2499
2500 break;
2501 }
2502 case R_M32R_GOT16_HI_ULO:
2503 case R_M32R_GOT16_HI_SLO:
2504 case R_M32R_GOT16_LO:
2505 /* Fall through. */
2506 case R_M32R_GOT24:
2507 /* Relocation is to the entry for this symbol in the global
2508 offset table. */
2509 BFD_ASSERT (sgot != NULL);
2510
2511 if (h != NULL)
2512 {
2513 bfd_boolean dyn;
2514 bfd_vma off;
2515
2516 off = h->got.offset;
2517 BFD_ASSERT (off != (bfd_vma) -1);
2518
2519 dyn = htab->root.dynamic_sections_created;
2520 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L		 2521 bfd_link_pic (info),
2522 h)
07d6d2b8
AM		 2523 || (bfd_link_pic (info)
2524 && (info->symbolic
2525 || h->dynindx == -1
2526 || h->forced_local)
2527 && h->def_regular))
2528 {
2529 /* This is actually a static link, or it is a
2530 -Bsymbolic link and the symbol is defined
2531 locally, or the symbol was forced to be local
2532 because of a version file. We must initialize
2533 this entry in the global offset table. Since the
2534 offset must always be a multiple of 4, we use the
2535 least significant bit to record whether we have
2536 initialized it already.
2537
2538 When doing a dynamic link, we create a .rela.got
2539 relocation entry to initialize the value. This
2540 is done in the finish_dynamic_symbol routine. */
2541 if ((off & 1) != 0)
2542 off &= ~1;
2543 else
2544 {
2545 bfd_put_32 (output_bfd, relocation,
2546 sgot->contents + off);
2547 h->got.offset |= 1;
2548 }
2549 }
2550
2551 relocation = sgot->output_offset + off;
2552 }
2553 else
2554 {
2555 bfd_vma off;
2556 bfd_byte *loc;
2557
2558 BFD_ASSERT (local_got_offsets != NULL
2559 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2560
2561 off = local_got_offsets[r_symndx];
2562
2563 /* The offset must always be a multiple of 4. We use
2564 the least significant bit to record whether we have
2565 already processed this entry. */
2566 if ((off & 1) != 0)
2567 off &= ~1;
2568 else
2569 {
2570 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2571
2572 if (bfd_link_pic (info))
2573 {
2574 asection *srelgot;
2575 Elf_Internal_Rela outrel;
2576
2577 /* We need to generate a R_M32R_RELATIVE reloc
2578 for the dynamic linker. */
2579 srelgot = htab->root.srelgot;
2580 BFD_ASSERT (srelgot != NULL);
2581
2582 outrel.r_offset = (sgot->output_section->vma
2583 + sgot->output_offset
2584 + off);
2585 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2586 outrel.r_addend = relocation;
2587 loc = srelgot->contents;
2588 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2589 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2590 ++srelgot->reloc_count;
2591 }
2592
2593 local_got_offsets[r_symndx] |= 1;
2594 }
2595
2596 relocation = sgot->output_offset + off;
2597 }
2598 if ((r_type == R_M32R_GOT16_HI_SLO)
2599 && ((relocation + rel->r_addend) & 0x8000))
2600 rel->r_addend += 0x10000;
2601
2602 break;
2603
2604 case R_M32R_26_PLTREL:
2605 /* Relocation is to the entry for this symbol in the
2606 procedure linkage table. */
2607
2608 /* The native assembler will generate a 26_PLTREL reloc
2609 for a local symbol if you assemble a call from one
2610 section to another when using -K pic. */
2611 if (h == NULL)
2612 break;
2613
2614 if (h->forced_local)
2615 break;
2616
2617 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC		 2618 /* We didn't make a PLT entry for this symbol. This
2619 happens when statically linking PIC code, or when
2620 using -Bsymbolic. */
2621 break;
41978308 2622
07d6d2b8
AM		 2623 relocation = (splt->output_section->vma
2624 + splt->output_offset
2625 + h->plt.offset);
2626 break;
41978308 2627
07d6d2b8 2628 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC		 2629 if ((relocation + rel->r_addend) & 0x8000)
2630 rel->r_addend += 0x10000;
07d6d2b8 2631 /* Fall through. */
47b0e7ad 2632
07d6d2b8
AM		 2633 case R_M32R_16_RELA:
2634 case R_M32R_24_RELA:
2635 case R_M32R_32_RELA:
2636 case R_M32R_REL32:
8ce757c4 2637 case R_M32R_10_PCREL_RELA:
07d6d2b8
AM		 2638 case R_M32R_18_PCREL_RELA:
2639 case R_M32R_26_PCREL_RELA:
2640 case R_M32R_HI16_ULO_RELA:
2641 case R_M32R_LO16_RELA:
2642 if (bfd_link_pic (info)
2643 && r_symndx != STN_UNDEF
2644 && (input_section->flags & SEC_ALLOC) != 0
2645 && (( r_type != R_M32R_10_PCREL_RELA
2646 && r_type != R_M32R_18_PCREL_RELA
2647 && r_type != R_M32R_26_PCREL_RELA
2648 && r_type != R_M32R_REL32)
2649 || (h != NULL
2650 && h->dynindx != -1
2651 && (! info->symbolic
2652 || !h->def_regular))))
2653 {
2654 Elf_Internal_Rela outrel;
2655 bfd_boolean skip, relocate;
2656 bfd_byte *loc;
2657
2658 /* When generating a shared object, these relocations
2659 are copied into the output file to be resolved at run
2660 time. */
2661 if (sreloc == NULL)
2662 {
83bac4b0
NC		 2663 sreloc = _bfd_elf_get_dynamic_reloc_section
2664 (input_bfd, input_section, /*rela?*/ TRUE);
2665 if (sreloc == NULL)
2666 return FALSE;
07d6d2b8
AM		 2667 }
2668
2669 skip = FALSE;
2670 relocate = FALSE;
2671
2672 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2673 info,
2674 input_section,
2675 rel->r_offset);
2676 if (outrel.r_offset == (bfd_vma) -1)
2677 skip = TRUE;
2678 else if (outrel.r_offset == (bfd_vma) -2)
2679 skip = relocate = TRUE;
2680 outrel.r_offset += (input_section->output_section->vma
2681 + input_section->output_offset);
2682
2683 if (skip)
2684 memset (&outrel, 0, sizeof outrel);
2685 else if ( r_type == R_M32R_10_PCREL_RELA
2686 || r_type == R_M32R_18_PCREL_RELA
2687 || r_type == R_M32R_26_PCREL_RELA
2688 || r_type == R_M32R_REL32)
2689 {
2690 BFD_ASSERT (h != NULL && h->dynindx != -1);
2691 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2692 outrel.r_addend = rel->r_addend;
2693 }
2694 else
2695 {
2696 /* h->dynindx may be -1 if this symbol was marked to
2697 become local. */
2698 if (h == NULL
2699 || ((info->symbolic || h->dynindx == -1)
2700 && h->def_regular))
2701 {
2702 relocate = TRUE;
2703 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2704 outrel.r_addend = relocation + rel->r_addend;
2705 }
2706 else
2707 {
2708 BFD_ASSERT (h->dynindx != -1);
2709 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2710 outrel.r_addend = relocation + rel->r_addend;
2711 }
2712 }
2713
2714 loc = sreloc->contents;
2715 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2716 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2717 ++sreloc->reloc_count;
2718
2719 /* If this reloc is against an external symbol, we do
2720 not want to fiddle with the addend. Otherwise, we
2721 need to include the symbol value so that it becomes
2722 an addend for the dynamic reloc. */
2723 if (! relocate)
2724 continue;
8ce757c4 2725 break;
07d6d2b8 2726 }
8ce757c4
NC		 2727 else if (r_type != R_M32R_10_PCREL_RELA)
2728 break;
2729 /* Fall through. */
41978308 2730
252b5132
RH		 2731 case (int) R_M32R_10_PCREL :
2732 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2733 contents, offset,
2734 sec, relocation, addend);
07d6d2b8 2735 goto check_reloc;
252b5132
RH		 2736
2737 case (int) R_M32R_HI16_SLO :
2738 case (int) R_M32R_HI16_ULO :
2739 {
2740 Elf_Internal_Rela *lorel;
2741
2742 /* We allow an arbitrary number of HI16 relocs before the
2743 LO16 reloc. This permits gcc to emit the HI and LO relocs
2744 itself. */
2745 for (lorel = rel + 1;
2746 (lorel < relend
2747 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2748 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2749 lorel++)
2750 continue;
2751 if (lorel < relend
2752 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2753 {
2754 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2755 contents, relocation + addend);
2756 r = bfd_reloc_ok;
2757 }
2758 else
2759 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2760 contents, offset,
2761 relocation, addend);
2762 }
6edf0760 2763
07d6d2b8 2764 goto check_reloc;
252b5132 2765
07d6d2b8 2766 case (int) R_M32R_SDA16_RELA:
252b5132
RH		 2767 case (int) R_M32R_SDA16 :
2768 {
2769 const char *name;
2770
2771 BFD_ASSERT (sec != NULL);
fd361982 2772 name = bfd_section_name (sec);
252b5132 2773
47b0e7ad 2774 if ( strcmp (name, ".sdata") == 0
252b5132
RH		 2775 || strcmp (name, ".sbss") == 0
2776 || strcmp (name, ".scommon") == 0)
2777 {
2778 bfd_vma sda_base;
2779 bfd *out_bfd = sec->output_section->owner;
2780
2781 r = m32r_elf_final_sda_base (out_bfd, info,
2782 &errmsg,
2783 &sda_base);
2784 if (r != bfd_reloc_ok)
2785 {
b34976b6 2786 ret = FALSE;
252b5132
RH		 2787 goto check_reloc;
2788 }
2789
2790 /* At this point `relocation' contains the object's
2791 address. */
2792 relocation -= sda_base;
2793 /* Now it contains the offset from _SDA_BASE_. */
2794 }
2795 else
2796 {
4eca0228 2797 _bfd_error_handler
695344c0 2798 /* xgettext:c-format */
38f14ab8
AM		 2799 (_("%pB: the target (%s) of an %s relocation"
2800 " is in the wrong section (%pA)"),
d003868e 2801 input_bfd,
8f615d07 2802 sym_name,
c08bb8dd
AM		 2803 m32r_elf_howto_table[(int) r_type].name,
2804 sec);
252b5132 2805 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 2806 ret = FALSE;
252b5132
RH		 2807 continue;
2808 }
2809 }
07d6d2b8 2810 /* Fall through. */
6edf0760
NC		 2811
2812 default : /* OLD_M32R_RELOC */
252b5132 2813
252b5132
RH		 2814 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2815 contents, offset,
2816 relocation, addend);
6edf0760 2817 goto check_reloc;
252b5132 2818 }
6edf0760 2819
07d6d2b8
AM		 2820 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2821 contents, rel->r_offset,
2822 relocation, rel->r_addend);
6edf0760 2823
252b5132
RH		 2824 }
2825
2826 check_reloc:
2827
2828 if (r != bfd_reloc_ok)
2829 {
2830 /* FIXME: This should be generic enough to go in a utility. */
2831 const char *name;
2832
2833 if (h != NULL)
2834 name = h->root.root.string;
2835 else
2836 {
2837 name = (bfd_elf_string_from_elf_section
2838 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2839 if (name == NULL || *name == '\0')
fd361982 2840 name = bfd_section_name (sec);
252b5132
RH		 2841 }
2842
2843 if (errmsg != NULL)
2844 goto common_error;
2845
2846 switch (r)
2847 {
2848 case bfd_reloc_overflow:
1a72702b
AM		 2849 (*info->callbacks->reloc_overflow)
2850 (info, (h ? &h->root : NULL), name, howto->name,
2851 (bfd_vma) 0, input_bfd, input_section, offset);
252b5132
RH		 2852 break;
2853
2854 case bfd_reloc_undefined:
1a72702b
AM		 2855 (*info->callbacks->undefined_symbol)
2856 (info, name, input_bfd, input_section, offset, TRUE);
252b5132
RH		 2857 break;
2858
2859 case bfd_reloc_outofrange:
2860 errmsg = _("internal error: out of range error");
2861 goto common_error;
2862
2863 case bfd_reloc_notsupported:
2864 errmsg = _("internal error: unsupported relocation error");
2865 goto common_error;
2866
2867 case bfd_reloc_dangerous:
2868 errmsg = _("internal error: dangerous error");
2869 goto common_error;
2870
2871 default:
2872 errmsg = _("internal error: unknown error");
2873 /* fall through */
2874
2875 common_error:
1a72702b
AM		 2876 (*info->callbacks->warning) (info, errmsg, name, input_bfd,
2877 input_section, offset);
252b5132
RH		 2878 break;
2879 }
2880 }
2881 }
2882
2883 return ret;
2884}
6edf0760
NC		 2885
2886/* Finish up dynamic symbol handling. We set the contents of various
2887 dynamic sections here. */
47b0e7ad 2888
6edf0760 2889static bfd_boolean
47b0e7ad
NC		 2890m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
2891 struct bfd_link_info *info,
2892 struct elf_link_hash_entry *h,
2893 Elf_Internal_Sym *sym)
6edf0760
NC		 2894{
2895 struct elf_m32r_link_hash_table *htab;
6edf0760 2896 bfd_byte *loc;
41978308 2897
6edf0760 2898#ifdef DEBUG_PIC
47b0e7ad 2899 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 2900#endif
41978308 2901
6edf0760 2902 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 2903 if (htab == NULL)
2904 return FALSE;
2905
6edf0760
NC		 2906 if (h->plt.offset != (bfd_vma) -1)
2907 {
2908 asection *splt;
2909 asection *sgot;
2910 asection *srela;
2911
2912 bfd_vma plt_index;
2913 bfd_vma got_offset;
2914 Elf_Internal_Rela rela;
41978308 2915
6edf0760 2916 /* This symbol has an entry in the procedure linkage table. Set
07d6d2b8 2917 it up. */
41978308 2918
6edf0760 2919 BFD_ASSERT (h->dynindx != -1);
41978308 2920
ce558b89
AM		 2921 splt = htab->root.splt;
2922 sgot = htab->root.sgotplt;
2923 srela = htab->root.srelplt;
6edf0760
NC		 2924 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
2925
2926 /* Get the index in the procedure linkage table which
07d6d2b8
AM		 2927 corresponds to this symbol. This is the index of this symbol
2928 in all the symbols for which we are making plt entries. The
2929 first entry in the procedure linkage table is reserved. */
6edf0760
NC		 2930 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
2931
2932 /* Get the offset into the .got table of the entry that
07d6d2b8
AM		 2933 corresponds to this function. Each .got entry is 4 bytes.
2934 The first three are reserved. */
6edf0760
NC		 2935 got_offset = (plt_index + 3) * 4;
2936
2937 /* Fill in the entry in the procedure linkage table. */
0e1862bb 2938 if (! bfd_link_pic (info))
07d6d2b8
AM		 2939 {
2940 bfd_put_32 (output_bfd,
2941 (PLT_ENTRY_WORD0b
2942 + (((sgot->output_section->vma
2943 + sgot->output_offset
2944 + got_offset) >> 16) & 0xffff)),
2945 splt->contents + h->plt.offset);
2946 bfd_put_32 (output_bfd,
2947 (PLT_ENTRY_WORD1b
2948 + ((sgot->output_section->vma
2949 + sgot->output_offset
2950 + got_offset) & 0xffff)),
2951 splt->contents + h->plt.offset + 4);
2952 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2953 splt->contents + h->plt.offset + 8);
2954 bfd_put_32 (output_bfd,
2955 (PLT_ENTRY_WORD3
2956 + plt_index * sizeof (Elf32_External_Rela)),
2957 splt->contents + h->plt.offset + 12);
2958 bfd_put_32 (output_bfd,
2959 (PLT_ENTRY_WORD4
2960 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2961 splt->contents + h->plt.offset + 16);
2962 }
6edf0760 2963 else
07d6d2b8
AM		 2964 {
2965 bfd_put_32 (output_bfd,
2966 PLT_ENTRY_WORD0 + got_offset,
2967 splt->contents + h->plt.offset);
2968 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
2969 splt->contents + h->plt.offset + 4);
2970 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2971 splt->contents + h->plt.offset + 8);
2972 bfd_put_32 (output_bfd,
2973 (PLT_ENTRY_WORD3
2974 + plt_index * sizeof (Elf32_External_Rela)),
2975 splt->contents + h->plt.offset + 12);
2976 bfd_put_32 (output_bfd,
2977 (PLT_ENTRY_WORD4
2978 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2979 splt->contents + h->plt.offset + 16);
2980 }
41978308 2981
6edf0760
NC		 2982 /* Fill in the entry in the global offset table. */
2983 bfd_put_32 (output_bfd,
07d6d2b8
AM		 2984 (splt->output_section->vma
2985 + splt->output_offset
2986 + h->plt.offset
2987 + 12), /* same offset */
2988 sgot->contents + got_offset);
6edf0760
NC		 2989
2990 /* Fill in the entry in the .rela.plt section. */
2991 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM		 2992 + sgot->output_offset
2993 + got_offset);
6edf0760
NC		 2994 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
2995 rela.r_addend = 0;
2996 loc = srela->contents;
47b0e7ad 2997 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 2998 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 2999
f5385ebf 3000 if (!h->def_regular)
07d6d2b8
AM		 3001 {
3002 /* Mark the symbol as undefined, rather than as defined in
3003 the .plt section. Leave the value alone. */
3004 sym->st_shndx = SHN_UNDEF;
3005 }
6edf0760
NC		 3006 }
3007
3008 if (h->got.offset != (bfd_vma) -1)
3009 {
3010 asection *sgot;
3011 asection *srela;
3012 Elf_Internal_Rela rela;
41978308 3013
6edf0760 3014 /* This symbol has an entry in the global offset table. Set it
07d6d2b8 3015 up. */
41978308 3016
ce558b89
AM		 3017 sgot = htab->root.sgot;
3018 srela = htab->root.srelgot;
6edf0760 3019 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3020
6edf0760 3021 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM		 3022 + sgot->output_offset
3023 + (h->got.offset &~ 1));
41978308 3024
6edf0760 3025 /* If this is a -Bsymbolic link, and the symbol is defined
07d6d2b8
AM		 3026 locally, we just want to emit a RELATIVE reloc. Likewise if
3027 the symbol was forced to be local because of a version file.
3028 The entry in the global offset table will already have been
3029 initialized in the relocate_section function. */
0e1862bb 3030 if (bfd_link_pic (info)
07d6d2b8 3031 && (info->symbolic
6edf0760 3032 || h->dynindx == -1
f5385ebf 3033 || h->forced_local)
07d6d2b8
AM		 3034 && h->def_regular)
3035 {
3036 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3037 rela.r_addend = (h->root.u.def.value
3038 + h->root.u.def.section->output_section->vma
3039 + h->root.u.def.section->output_offset);
3040 }
6edf0760 3041 else
07d6d2b8 3042 {
47b0e7ad 3043 BFD_ASSERT ((h->got.offset & 1) == 0);
07d6d2b8
AM		 3044 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3045 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3046 rela.r_addend = 0;
3047 }
41978308 3048
6edf0760 3049 loc = srela->contents;
47b0e7ad 3050 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3051 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3052 ++srela->reloc_count;
3053 }
41978308 3054
f5385ebf 3055 if (h->needs_copy)
6edf0760
NC		 3056 {
3057 asection *s;
3058 Elf_Internal_Rela rela;
41978308 3059
6edf0760 3060 /* This symbols needs a copy reloc. Set it up. */
41978308 3061
6edf0760 3062 BFD_ASSERT (h->dynindx != -1
07d6d2b8
AM		 3063 && (h->root.type == bfd_link_hash_defined
3064 || h->root.type == bfd_link_hash_defweak));
41978308 3065
3d4d4302 3066 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
6edf0760 3067 BFD_ASSERT (s != NULL);
41978308 3068
6edf0760 3069 rela.r_offset = (h->root.u.def.value
07d6d2b8
AM		 3070 + h->root.u.def.section->output_section->vma
3071 + h->root.u.def.section->output_offset);
6edf0760
NC		 3072 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3073 rela.r_addend = 0;
3074 loc = s->contents;
47b0e7ad 3075 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3076 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3077 ++s->reloc_count;
3078 }
41978308 3079
6edf0760 3080 /* Mark some specially defined symbols as absolute. */
9637f6ef 3081 if (h == htab->root.hdynamic || h == htab->root.hgot)
6edf0760 3082 sym->st_shndx = SHN_ABS;
41978308 3083
6edf0760
NC		 3084 return TRUE;
3085}
3086
3087
3088/* Finish up the dynamic sections. */
41978308 3089
6edf0760 3090static bfd_boolean
47b0e7ad
NC		 3091m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3092 struct bfd_link_info *info)
6edf0760
NC		 3093{
3094 struct elf_m32r_link_hash_table *htab;
3095 bfd *dynobj;
3096 asection *sdyn;
3097 asection *sgot;
3098
3099#ifdef DEBUG_PIC
47b0e7ad 3100 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3101#endif
41978308 3102
6edf0760 3103 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3104 if (htab == NULL)
3105 return FALSE;
3106
6edf0760
NC		 3107 dynobj = htab->root.dynobj;
3108
ce558b89 3109 sgot = htab->root.sgotplt;
3d4d4302 3110 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
41978308 3111
6edf0760
NC		 3112 if (htab->root.dynamic_sections_created)
3113 {
3114 asection *splt;
3115 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3116
6edf0760 3117 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3118
6edf0760 3119 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3120 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC		 3121
3122 for (; dyncon < dynconend; dyncon++)
07d6d2b8
AM		 3123 {
3124 Elf_Internal_Dyn dyn;
3125 asection *s;
3126
3127 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3128
3129 switch (dyn.d_tag)
3130 {
3131 default:
3132 break;
3133
3134 case DT_PLTGOT:
3135 s = htab->root.sgotplt;
3136 goto get_vma;
3137 case DT_JMPREL:
3138 s = htab->root.srelplt;
3139 get_vma:
3140 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3141 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3142 break;
3143
3144 case DT_PLTRELSZ:
3145 s = htab->root.srelplt;
eea6121a 3146 dyn.d_un.d_val = s->size;
07d6d2b8
AM		 3147 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3148 break;
3149 }
3150 }
41978308 3151
6edf0760 3152 /* Fill in the first entry in the procedure linkage table. */
ce558b89 3153 splt = htab->root.splt;
eea6121a 3154 if (splt && splt->size > 0)
07d6d2b8
AM		 3155 {
3156 if (bfd_link_pic (info))
3157 {
3158 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3159 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3160 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3161 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3162 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3163 }
3164 else
3165 {
3166 unsigned long addr;
3167 /* addr = .got + 4 */
3168 addr = sgot->output_section->vma + sgot->output_offset + 4;
3169 bfd_put_32 (output_bfd,
6edf0760
NC		 3170 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3171 splt->contents);
07d6d2b8 3172 bfd_put_32 (output_bfd,
6edf0760
NC		 3173 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3174 splt->contents + 4);
07d6d2b8
AM		 3175 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3176 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3177 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3178 }
3179
3180 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3181 PLT_ENTRY_SIZE;
3182 }
6edf0760
NC		 3183 }
3184
3185 /* Fill in the first three entries in the global offset table. */
eea6121a 3186 if (sgot && sgot->size > 0)
6edf0760
NC		 3187 {
3188 if (sdyn == NULL)
07d6d2b8 3189 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
6edf0760 3190 else
07d6d2b8
AM		 3191 bfd_put_32 (output_bfd,
3192 sdyn->output_section->vma + sdyn->output_offset,
3193 sgot->contents);
6edf0760
NC		 3194 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3195 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3196
3197 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3198 }
41978308 3199
6edf0760
NC		 3200 return TRUE;
3201}
3202
252b5132
RH		 3203\f
3204/* Set the right machine number. */
47b0e7ad 3205
b34976b6 3206static bfd_boolean
47b0e7ad 3207m32r_elf_object_p (bfd *abfd)
252b5132
RH		 3208{
3209 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3210 {
3211 default:
3212 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3213 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3214 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3215 }
b34976b6 3216 return TRUE;
252b5132
RH		 3217}
3218
3219/* Store the machine number in the flags field. */
47b0e7ad 3220
cc364be6
AM		 3221static bfd_boolean
3222m32r_elf_final_write_processing (bfd *abfd)
252b5132
RH		 3223{
3224 unsigned long val;
3225
3226 switch (bfd_get_mach (abfd))
3227 {
3228 default:
3229 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3230 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3231 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH		 3232 }
3233
3234 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3235 elf_elfheader (abfd)->e_flags |= val;
cc364be6 3236 return _bfd_elf_final_write_processing (abfd);
252b5132
RH		 3237}
3238
c3668558 3239/* Function to keep M32R specific file flags. */
47b0e7ad 3240
b34976b6 3241static bfd_boolean
47b0e7ad 3242m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH		 3243{
3244 BFD_ASSERT (!elf_flags_init (abfd)
3245 || elf_elfheader (abfd)->e_flags == flags);
3246
3247 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM		 3248 elf_flags_init (abfd) = TRUE;
3249 return TRUE;
252b5132
RH		 3250}
3251
252b5132
RH		 3252/* Merge backend specific data from an object file to the output
3253 object file when linking. */
47b0e7ad 3254
b34976b6 3255static bfd_boolean
50e03d47 3256m32r_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
252b5132 3257{
50e03d47 3258 bfd *obfd = info->output_bfd;
252b5132
RH		 3259 flagword out_flags;
3260 flagword in_flags;
3261
3262 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3263 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3264 return TRUE;
252b5132
RH		 3265
3266 in_flags = elf_elfheader (ibfd)->e_flags;
3267 out_flags = elf_elfheader (obfd)->e_flags;
3268
3269 if (! elf_flags_init (obfd))
3270 {
3271 /* If the input is the default architecture then do not
3272 bother setting the flags for the output architecture,
3273 instead allow future merges to do this. If no future
3274 merges ever set these flags then they will retain their
3275 unitialised values, which surprise surprise, correspond
3276 to the default values. */
3277 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3278 return TRUE;
c3668558 3279
b34976b6 3280 elf_flags_init (obfd) = TRUE;
252b5132
RH		 3281 elf_elfheader (obfd)->e_flags = in_flags;
3282
3283 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3284 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC		 3285 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3286 bfd_get_mach (ibfd));
252b5132 3287
b34976b6 3288 return TRUE;
252b5132
RH		 3289 }
3290
3291 /* Check flag compatibility. */
3292 if (in_flags == out_flags)
b34976b6 3293 return TRUE;
252b5132
RH		 3294
3295 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3296 {
88845958 3297 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
07d6d2b8
AM		 3298 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3299 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3300 {
4eca0228 3301 _bfd_error_handler
38f14ab8 3302 (_("%pB: instruction set mismatch with previous modules"), ibfd);
252b5132
RH		 3303
3304 bfd_set_error (bfd_error_bad_value);
b34976b6 3305 return FALSE;
252b5132
RH		 3306 }
3307 }
3308
b34976b6 3309 return TRUE;
252b5132
RH		 3310}
3311
47b0e7ad
NC		 3312/* Display the flags field. */
3313
b34976b6 3314static bfd_boolean
47b0e7ad 3315m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH		 3316{
3317 FILE * file = (FILE *) ptr;
c3668558 3318
f12123c0 3319 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3320
252b5132 3321 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3322
252b5132 3323 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3324
252b5132
RH		 3325 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3326 {
3327 default:
3328 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3329 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3330 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3331 }
c3668558 3332
252b5132 3333 fputc ('\n', file);
c3668558 3334
b34976b6 3335 return TRUE;
252b5132
RH		 3336}
3337
47b0e7ad
NC		 3338static asection *
3339m32r_elf_gc_mark_hook (asection *sec,
07adf181 3340 struct bfd_link_info *info,
47b0e7ad
NC		 3341 Elf_Internal_Rela *rel,
3342 struct elf_link_hash_entry *h,
3343 Elf_Internal_Sym *sym)
252b5132
RH		 3344{
3345 if (h != NULL)
07adf181 3346 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH		 3347 {
3348 case R_M32R_GNU_VTINHERIT:
3349 case R_M32R_GNU_VTENTRY:
6edf0760
NC		 3350 case R_M32R_RELA_GNU_VTINHERIT:
3351 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM		 3352 return NULL;
3353 }
1e2f5b6e 3354
07adf181 3355 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH		 3356}
3357
252b5132
RH		 3358/* Look through the relocs for a section during the first phase.
3359 Since we don't do .gots or .plts, we just need to consider the
3360 virtual table relocs for gc. */
c3668558 3361
b34976b6 3362static bfd_boolean
47b0e7ad
NC		 3363m32r_elf_check_relocs (bfd *abfd,
3364 struct bfd_link_info *info,
3365 asection *sec,
3366 const Elf_Internal_Rela *relocs)
252b5132
RH		 3367{
3368 Elf_Internal_Shdr *symtab_hdr;
5582a088 3369 struct elf_link_hash_entry **sym_hashes;
252b5132
RH		 3370 const Elf_Internal_Rela *rel;
3371 const Elf_Internal_Rela *rel_end;
6edf0760
NC		 3372 struct elf_m32r_link_hash_table *htab;
3373 bfd *dynobj;
c7e2358a 3374 asection *sreloc;
c3668558 3375
0e1862bb 3376 if (bfd_link_relocatable (info))
b34976b6 3377 return TRUE;
c3668558 3378
c7e2358a 3379 sreloc = NULL;
252b5132
RH		 3380 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3381 sym_hashes = elf_sym_hashes (abfd);
c3668558 3382
6edf0760 3383 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3384 if (htab == NULL)
3385 return FALSE;
3386
6edf0760 3387 dynobj = htab->root.dynobj;
6edf0760 3388
252b5132
RH		 3389 rel_end = relocs + sec->reloc_count;
3390 for (rel = relocs; rel < rel_end; rel++)
3391 {
6edf0760 3392 int r_type;
252b5132
RH		 3393 struct elf_link_hash_entry *h;
3394 unsigned long r_symndx;
c3668558 3395
252b5132 3396 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3397 r_type = ELF32_R_TYPE (rel->r_info);
252b5132 3398 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8 3399 h = NULL;
252b5132 3400 else
973a3492
L		 3401 {
3402 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3403 while (h->root.type == bfd_link_hash_indirect
3404 || h->root.type == bfd_link_hash_warning)
3405 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3406 }
c3668558 3407
6edf0760 3408 /* Some relocs require a global offset table. */
ce558b89 3409 if (htab->root.sgot == NULL)
07d6d2b8
AM		 3410 {
3411 switch (r_type)
3412 {
3413 case R_M32R_GOT16_HI_ULO:
3414 case R_M32R_GOT16_HI_SLO:
3415 case R_M32R_GOTOFF:
3416 case R_M32R_GOTOFF_HI_ULO:
3417 case R_M32R_GOTOFF_HI_SLO:
3418 case R_M32R_GOTOFF_LO:
3419 case R_M32R_GOT16_LO:
3420 case R_M32R_GOTPC24:
3421 case R_M32R_GOTPC_HI_ULO:
3422 case R_M32R_GOTPC_HI_SLO:
3423 case R_M32R_GOTPC_LO:
3424 case R_M32R_GOT24:
3425 if (dynobj == NULL)
3426 htab->root.dynobj = dynobj = abfd;
3427 if (!_bfd_elf_create_got_section (dynobj, info))
3428 return FALSE;
3429 break;
3430
3431 default:
3432 break;
3433 }
3434 }
6edf0760
NC		 3435
3436 switch (r_type)
07d6d2b8 3437 {
6edf0760
NC		 3438 case R_M32R_GOT16_HI_ULO:
3439 case R_M32R_GOT16_HI_SLO:
41978308 3440 case R_M32R_GOT16_LO:
07d6d2b8
AM		 3441 case R_M32R_GOT24:
3442
3443 if (h != NULL)
3444 h->got.refcount += 1;
3445 else
3446 {
3447 bfd_signed_vma *local_got_refcounts;
3448
3449 /* This is a global offset table entry for a local
3450 symbol. */
3451 local_got_refcounts = elf_local_got_refcounts (abfd);
3452 if (local_got_refcounts == NULL)
3453 {
3454 bfd_size_type size;
3455
3456 size = symtab_hdr->sh_info;
3457 size *= sizeof (bfd_signed_vma);
3458 local_got_refcounts = bfd_zalloc (abfd, size);
3459 if (local_got_refcounts == NULL)
3460 return FALSE;
3461 elf_local_got_refcounts (abfd) = local_got_refcounts;
3462 }
3463 local_got_refcounts[r_symndx] += 1;
3464 }
3465 break;
3466
3467 case R_M32R_26_PLTREL:
3468 /* This symbol requires a procedure linkage table entry. We
3469 actually build the entry in adjust_dynamic_symbol,
3470 because this might be a case of linking PIC code without
3471 linking in any dynamic objects, in which case we don't
3472 need to generate a procedure linkage table after all. */
41978308 3473
6edf0760
NC		 3474 /* If this is a local symbol, we resolve it directly without
3475 creating a procedure linkage table entry. */
07d6d2b8
AM		 3476 if (h == NULL)
3477 continue;
6edf0760 3478
07d6d2b8
AM		 3479 if (h->forced_local)
3480 break;
6edf0760 3481
07d6d2b8 3482 h->needs_plt = 1;
6edf0760 3483 h->plt.refcount += 1;
07d6d2b8
AM		 3484 break;
3485
3486 case R_M32R_16_RELA:
3487 case R_M32R_24_RELA:
3488 case R_M32R_32_RELA:
3489 case R_M32R_REL32:
3490 case R_M32R_HI16_ULO_RELA:
3491 case R_M32R_HI16_SLO_RELA:
3492 case R_M32R_LO16_RELA:
3493 case R_M32R_SDA16_RELA:
8ce757c4 3494 case R_M32R_10_PCREL_RELA:
07d6d2b8
AM		 3495 case R_M32R_18_PCREL_RELA:
3496 case R_M32R_26_PCREL_RELA:
3497
3498 if (h != NULL && !bfd_link_pic (info))
3499 {
3500 h->non_got_ref = 1;
3501 h->plt.refcount += 1;
3502 }
3503
3504 /* If we are creating a shared library, and this is a reloc
3505 against a global symbol, or a non PC relative reloc
3506 against a local symbol, then we need to copy the reloc
3507 into the shared library. However, if we are linking with
3508 -Bsymbolic, we do not need to copy a reloc against a
3509 global symbol which is defined in an object we are
3510 including in the link (i.e., DEF_REGULAR is set). At
3511 this point we have not seen all the input files, so it is
3512 possible that DEF_REGULAR is not set now but will be set
3513 later (it is never cleared). We account for that
3514 possibility below by storing information in the
3515 dyn_relocs field of the hash table entry. A similar
3516 situation occurs when creating shared libraries and symbol
3517 visibility changes render the symbol local.
3518
3519 If on the other hand, we are creating an executable, we
3520 may need to keep relocations for symbols satisfied by a
3521 dynamic library if we manage to avoid copy relocs for the
3522 symbol. */
3523 if ((bfd_link_pic (info)
3524 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3525 && (( r_type != R_M32R_26_PCREL_RELA
07d6d2b8
AM		 3526 && r_type != R_M32R_18_PCREL_RELA
3527 && r_type != R_M32R_10_PCREL_RELA
3528 && r_type != R_M32R_REL32)
3529 || (h != NULL
6edf0760 3530 && (! info->symbolic
07d6d2b8
AM		 3531 || h->root.type == bfd_link_hash_defweak
3532 || !h->def_regular))))
3533 || (!bfd_link_pic (info)
3534 && (sec->flags & SEC_ALLOC) != 0
3535 && h != NULL
3536 && (h->root.type == bfd_link_hash_defweak
3537 || !h->def_regular)))
3538 {
3539 struct elf_dyn_relocs *p;
3540 struct elf_dyn_relocs **head;
3541
3542 if (dynobj == NULL)
3543 htab->root.dynobj = dynobj = abfd;
3544
3545 /* When creating a shared object, we must copy these
3546 relocs into the output file. We create a reloc
3547 section in dynobj and make room for the reloc. */
3548 if (sreloc == NULL)
3549 {
83bac4b0
NC		 3550 sreloc = _bfd_elf_make_dynamic_reloc_section
3551 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
41978308 3552
83bac4b0
NC		 3553 if (sreloc == NULL)
3554 return FALSE;
07d6d2b8
AM		 3555 }
3556
3557 /* If this is a global symbol, we count the number of
3558 relocations we need for this symbol. */
3559 if (h != NULL)
190eb1dd 3560 head = &h->dyn_relocs;
07d6d2b8
AM		 3561 else
3562 {
3563 /* Track dynamic relocs needed for local syms too. */
3564 asection *s;
3565 void *vpp;
87d72d41 3566 Elf_Internal_Sym *isym;
6edf0760 3567
87d72d41
AM		 3568 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3569 abfd, r_symndx);
3570 if (isym == NULL)
3571 return FALSE;
3572
3573 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3574 if (s == NULL)
3575 s = sec;
6edf0760 3576
6edfbbad 3577 vpp = &elf_section_data (s)->local_dynrel;
07d6d2b8
AM		 3578 head = (struct elf_dyn_relocs **) vpp;
3579 }
3580
3581 p = *head;
3582 if (p == NULL || p->sec != sec)
3583 {
986f0783 3584 size_t amt = sizeof (*p);
07d6d2b8
AM		 3585
3586 p = bfd_alloc (dynobj, amt);
3587 if (p == NULL)
3588 return FALSE;
3589 p->next = *head;
3590 *head = p;
3591 p->sec = sec;
3592 p->count = 0;
3593 p->pc_count = 0;
3594 }
3595
3596 p->count += 1;
3597 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3598 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
8ce757c4
NC		 3599 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3600 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
07d6d2b8
AM		 3601 p->pc_count += 1;
3602 }
3603 break;
3604
3605 /* This relocation describes the C++ object vtable hierarchy.
3606 Reconstruct it for later use during GC. */
3607 case R_M32R_RELA_GNU_VTINHERIT:
3608 case R_M32R_GNU_VTINHERIT:
3609 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3610 return FALSE;
3611 break;
3612
3613 /* This relocation describes which C++ vtable entries are actually
3614 used. Record for later use during GC. */
3615 case R_M32R_GNU_VTENTRY:
a0ea3a14 3616 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
07d6d2b8
AM		 3617 return FALSE;
3618 break;
3619 case R_M32R_RELA_GNU_VTENTRY:
a0ea3a14 3620 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
07d6d2b8
AM		 3621 return FALSE;
3622 break;
3623 }
252b5132 3624 }
c3668558 3625
b34976b6 3626 return TRUE;
252b5132 3627}
2f89ff8d 3628
b35d266b 3629static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 3630{
07d6d2b8 3631 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
0112cd26 3632 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
07d6d2b8 3633 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 3634};
3635
bf577467
AM		 3636static bfd_boolean
3637m32r_elf_section_flags (const Elf_Internal_Shdr *hdr)
3638{
3639 const char *name = hdr->bfd_section->name;
3640
3641 if (strncmp (name, ".sbss", 5) == 0
3642 || strncmp (name, ".sdata", 6) == 0)
3643 hdr->bfd_section->flags |= SEC_SMALL_DATA;
3644
3645 return TRUE;
3646}
3647
6edf0760 3648static enum elf_reloc_type_class
7e612e98
AM		 3649m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3650 const asection *rel_sec ATTRIBUTE_UNUSED,
3651 const Elf_Internal_Rela *rela)
6edf0760
NC		 3652{
3653 switch ((int) ELF32_R_TYPE (rela->r_info))
3654 {
47b0e7ad
NC		 3655 case R_M32R_RELATIVE: return reloc_class_relative;
3656 case R_M32R_JMP_SLOT: return reloc_class_plt;
3657 case R_M32R_COPY: return reloc_class_copy;
07d6d2b8 3658 default: return reloc_class_normal;
6edf0760
NC		 3659 }
3660}
252b5132 3661\f
252b5132 3662#define ELF_ARCH bfd_arch_m32r
ae95ffa6 3663#define ELF_TARGET_ID M32R_ELF_DATA
aa4f99bb
AO		 3664#define ELF_MACHINE_CODE EM_M32R
3665#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 3666#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132 3667
07d6d2b8 3668#define TARGET_BIG_SYM m32r_elf32_vec
252b5132 3669#define TARGET_BIG_NAME "elf32-m32r"
07d6d2b8
AM		 3670#define TARGET_LITTLE_SYM m32r_elf32_le_vec
3671#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 3672
6edf0760 3673#define elf_info_to_howto m32r_info_to_howto
252b5132
RH		 3674#define elf_info_to_howto_rel m32r_info_to_howto_rel
3675#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
3676#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
3677#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
3678#define elf_backend_relocate_section m32r_elf_relocate_section
07d6d2b8
AM		 3679#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
3680#define elf_backend_check_relocs m32r_elf_check_relocs
252b5132 3681
07d6d2b8
AM		 3682#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
3683#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
3684#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
d00dd7dc 3685#define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
07d6d2b8
AM		 3686#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
3687#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
3688#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
3689#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
6edf0760 3690
07d6d2b8 3691#define elf_backend_can_gc_sections 1
6edf0760 3692/*#if !USE_REL
b491616a 3693#define elf_backend_rela_normal 1
6edf0760
NC		 3694#endif*/
3695#define elf_backend_can_refcount 1
3696#define elf_backend_want_got_plt 1
3697#define elf_backend_plt_readonly 1
3698#define elf_backend_want_plt_sym 0
3699#define elf_backend_got_header_size 12
64f52338 3700#define elf_backend_dtrel_excludes_plt 1
6edf0760 3701
07d6d2b8 3702#define elf_backend_may_use_rel_p 1
6edf0760 3703#ifdef USE_M32R_OLD_RELOC
07d6d2b8
AM		 3704#define elf_backend_default_use_rela_p 0
3705#define elf_backend_may_use_rela_p 0
6edf0760 3706#else
07d6d2b8
AM		 3707#define elf_backend_default_use_rela_p 1
3708#define elf_backend_may_use_rela_p 1
b491616a 3709#endif
6edf0760 3710
252b5132 3711#define elf_backend_object_p m32r_elf_object_p
07d6d2b8
AM		 3712#define elf_backend_final_write_processing m32r_elf_final_write_processing
3713#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
252b5132
RH		 3714#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
3715#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 3716#define elf_backend_special_sections m32r_elf_special_sections
bf577467 3717#define elf_backend_section_flags m32r_elf_section_flags
c3668558 3718
a2f63b2e
MR		 3719#define elf_backend_linux_prpsinfo32_ugid16 TRUE
3720
252b5132 3721#include "elf32-target.h"
6edf0760 3722
07d6d2b8
AM		 3723#undef ELF_MAXPAGESIZE
3724#define ELF_MAXPAGESIZE 0x1000
3725
3726#undef TARGET_BIG_SYM
3727#define TARGET_BIG_SYM m32r_elf32_linux_vec
3728#undef TARGET_BIG_NAME
3729#define TARGET_BIG_NAME "elf32-m32r-linux"
3730#undef TARGET_LITTLE_SYM
3731#define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
3732#undef TARGET_LITTLE_NAME
3733#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
3734#undef elf32_bed
3735#define elf32_bed elf32_m32r_lin_bed
6edf0760
NC		 3736
3737#include "elf32-target.h"
GDB Binutils - Deliverables
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