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[thirdparty/binutils-gdb.git] / bfd / elf32-m32r.c
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252b5132 1/* M32R-specific support for 32-bit ELF.
250d07de 2 Copyright (C) 1996-2021 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;
7f3a18cf
AM		 1340static const asymbol m32r_elf_scom_symbol =
1341 GLOBAL_SYM_INIT (".scommon", &m32r_elf_scom_section);
1342static asection m32r_elf_scom_section =
1343 BFD_FAKE_SECTION (m32r_elf_scom_section, &m32r_elf_scom_symbol,
1344 ".scommon", 0, SEC_IS_COMMON | SEC_SMALL_DATA);
252b5132
RH		 1345
1346/* Handle the special M32R section numbers that a symbol may use. */
1347
47b0e7ad
NC		 1348static void
1349_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1350{
47b0e7ad 1351 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH		 1352
1353 switch (elfsym->internal_elf_sym.st_shndx)
1354 {
1355 case SHN_M32R_SCOMMON:
252b5132
RH		 1356 asym->section = &m32r_elf_scom_section;
1357 asym->value = elfsym->internal_elf_sym.st_size;
1358 break;
1359 }
1360}
1361
1362/* Hook called by the linker routine which adds symbols from an object
1363 file. We must handle the special M32R section numbers here.
1364 We also keep watching for whether we need to create the sdata special
1365 linker sections. */
1366
b34976b6 1367static bfd_boolean
47b0e7ad
NC		 1368m32r_elf_add_symbol_hook (bfd *abfd,
1369 struct bfd_link_info *info,
1370 Elf_Internal_Sym *sym,
1371 const char **namep,
1372 flagword *flagsp ATTRIBUTE_UNUSED,
1373 asection **secp,
1374 bfd_vma *valp)
252b5132 1375{
0e1862bb 1376 if (! bfd_link_relocatable (info)
252b5132 1377 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1378 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1379 && is_elf_hash_table (info->hash))
252b5132
RH		 1380 {
1381 /* This is simpler than using _bfd_elf_create_linker_section
1382 (our needs are simpler than ppc's needs). Also
1383 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1384 section already exists a new one is created that follows it which
1385 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1386 struct elf_link_hash_entry *h;
14a793b2 1387 struct bfd_link_hash_entry *bh;
252b5132
RH		 1388 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1389
6edf0760 1390 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC		 1391 if (s == NULL)
1392 {
1393 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1394 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1395
3496cb2a
L		 1396 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1397 flags);
6edf0760
NC		 1398 if (s == NULL)
1399 return FALSE;
fd361982 1400 if (!bfd_set_section_alignment (s, 2))
a253d456 1401 return FALSE;
6edf0760
NC		 1402 }
1403
1404 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1405 FALSE, FALSE, FALSE);
1406
1407 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1408 && !(_bfd_generic_link_add_one_symbol (info,
1409 abfd,
1410 "_SDA_BASE_",
1411 BSF_GLOBAL,
1412 s,
1413 (bfd_vma) 32768,
47b0e7ad 1414 NULL,
6edf0760
NC		 1415 FALSE,
1416 get_elf_backend_data (abfd)->collect,
1417 &bh)))
1418 return FALSE;
1419 h = (struct elf_link_hash_entry *) bh;
1420 h->type = STT_OBJECT;
1421 }
1422
1423 switch (sym->st_shndx)
1424 {
1425 case SHN_M32R_SCOMMON:
1426 *secp = bfd_make_section_old_way (abfd, ".scommon");
10885e24 1427 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
6edf0760
NC		 1428 *valp = sym->st_size;
1429 break;
1430 }
1431
1432 return TRUE;
1433}
1434
1435/* We have to figure out the SDA_BASE value, so that we can adjust the
1436 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1437 BFD. If we can't find it, we're stuck. We cache it in the ELF
1438 target data. We don't need to adjust the symbol value for an
1439 external symbol if we are producing relocatable output. */
1440
1441static bfd_reloc_status_type
47b0e7ad
NC		 1442m32r_elf_final_sda_base (bfd *output_bfd,
1443 struct bfd_link_info *info,
1444 const char **error_message,
1445 bfd_vma *psb)
6edf0760
NC		 1446{
1447 if (elf_gp (output_bfd) == 0)
1448 {
1449 struct bfd_link_hash_entry *h;
1450
1451 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1452 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC		 1453 elf_gp (output_bfd) = (h->u.def.value
1454 + h->u.def.section->output_section->vma
1455 + h->u.def.section->output_offset);
1456 else
1457 {
1458 /* Only get the error once. */
1459 *psb = elf_gp (output_bfd) = 4;
1460 *error_message =
1461 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1462 return bfd_reloc_dangerous;
1463 }
1464 }
1465 *psb = elf_gp (output_bfd);
1466 return bfd_reloc_ok;
1467}
1468\f
1469/* Return size of a PLT entry. */
1470#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1471
1472/* The m32r linker needs to keep track of the number of relocs that it
1473 decides to copy in check_relocs for each symbol. This is so that
1474 it can discard PC relative relocs if it doesn't need them when
1475 linking with -Bsymbolic. We store the information in a field
1476 extending the regular ELF linker hash table. */
1477
1478/* This structure keeps track of the number of PC relative relocs we
1479 have copied for a given symbol. */
1480
1481struct elf_m32r_pcrel_relocs_copied
1482{
1483 /* Next section. */
1484 struct elf_m32r_pcrel_relocs_copied *next;
1485 /* A section in dynobj. */
1486 asection *section;
1487 /* Number of relocs copied in this section. */
1488 bfd_size_type count;
1489};
1490
6edf0760
NC		 1491/* Traverse an m32r ELF linker hash table. */
1492
1493#define m32r_elf_link_hash_traverse(table, func, info) \
1494 (elf_link_hash_traverse \
1495 (&(table)->root, \
47b0e7ad 1496 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC		 1497 (info)))
1498
1499/* Get the m32r ELF linker hash table from a link_info structure. */
1500
6edf0760 1501#define m32r_elf_hash_table(p) \
0f55320b
AM		 1502 ((is_elf_hash_table ((p)->hash) \
1503 && elf_hash_table_id (elf_hash_table (p)) == M32R_ELF_DATA) \
1504 ? (struct elf_link_hash_table *) (p)->hash : NULL)
6edf0760 1505
6edf0760 1506/* Create an m32r ELF linker hash table. */
6edf0760
NC		 1507
1508static struct bfd_link_hash_table *
47b0e7ad 1509m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760 1510{
f1dfbfdb
L		 1511 struct elf_link_hash_table *ret;
1512 size_t amt = sizeof (struct elf_link_hash_table);
41978308 1513
7bf52ea2 1514 ret = bfd_zmalloc (amt);
47b0e7ad 1515 if (ret == NULL)
6edf0760 1516 return NULL;
41978308 1517
f1dfbfdb 1518 if (!_bfd_elf_link_hash_table_init (ret, abfd,
190eb1dd
L		 1519 _bfd_elf_link_hash_newfunc,
1520 sizeof (struct elf_link_hash_entry),
4dfe6ac6 1521 M32R_ELF_DATA))
6edf0760
NC		 1522 {
1523 free (ret);
1524 return NULL;
1525 }
41978308 1526
f1dfbfdb 1527 return &ret->root;
6edf0760
NC		 1528}
1529
6edf0760
NC		 1530/* Create dynamic sections when linking against a dynamic object. */
1531
1532static bfd_boolean
47b0e7ad 1533m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760 1534{
f1dfbfdb 1535 struct elf_link_hash_table *htab;
6edf0760 1536 flagword flags, pltflags;
47b0e7ad 1537 asection *s;
6edf0760
NC		 1538 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1539 int ptralign = 2; /* 32bit */
1540
1541 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1542 if (htab == NULL)
1543 return FALSE;
6edf0760
NC		 1544
1545 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1546 .rel[a].bss sections. */
6edf0760 1547 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
07d6d2b8 1548 | SEC_LINKER_CREATED);
6edf0760
NC		 1549
1550 pltflags = flags;
1551 pltflags |= SEC_CODE;
1552 if (bed->plt_not_loaded)
1553 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1554 if (bed->plt_readonly)
1555 pltflags |= SEC_READONLY;
1556
3d4d4302 1557 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
f1dfbfdb 1558 htab->splt = s;
6edf0760 1559 if (s == NULL
fd361982 1560 || !bfd_set_section_alignment (s, bed->plt_alignment))
6edf0760
NC		 1561 return FALSE;
1562
1563 if (bed->want_plt_sym)
1564 {
1565 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
07d6d2b8 1566 .plt section. */
41978308
AM		 1567 struct bfd_link_hash_entry *bh = NULL;
1568 struct elf_link_hash_entry *h;
47b0e7ad 1569
6edf0760 1570 if (! (_bfd_generic_link_add_one_symbol
07d6d2b8
AM		 1571 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1572 (bfd_vma) 0, NULL, FALSE,
1573 get_elf_backend_data (abfd)->collect, &bh)))
1574 return FALSE;
41978308 1575 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1576 h->def_regular = 1;
6edf0760 1577 h->type = STT_OBJECT;
f1dfbfdb 1578 htab->hplt = h;
6edf0760 1579
0e1862bb 1580 if (bfd_link_pic (info)
07d6d2b8
AM		 1581 && ! bfd_elf_link_record_dynamic_symbol (info, h))
1582 return FALSE;
6edf0760
NC		 1583 }
1584
3d4d4302
AM		 1585 s = bfd_make_section_anyway_with_flags (abfd,
1586 bed->default_use_rela_p
1587 ? ".rela.plt" : ".rel.plt",
1588 flags | SEC_READONLY);
f1dfbfdb 1589 htab->srelplt = s;
6edf0760 1590 if (s == NULL
fd361982 1591 || !bfd_set_section_alignment (s, ptralign))
6edf0760
NC		 1592 return FALSE;
1593
f1dfbfdb 1594 if (htab->sgot == NULL
ce558b89 1595 && !_bfd_elf_create_got_section (abfd, info))
6edf0760
NC		 1596 return FALSE;
1597
6edf0760
NC		 1598 if (bed->want_dynbss)
1599 {
1600 /* The .dynbss section is a place to put symbols which are defined
07d6d2b8
AM		 1601 by dynamic objects, are referenced by regular objects, and are
1602 not functions. We must allocate space for them in the process
1603 image and use a R_*_COPY reloc to tell the dynamic linker to
1604 initialize them at run time. The linker script puts the .dynbss
1605 section into the .bss section of the final image. */
3d4d4302
AM		 1606 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1607 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1608 htab->sdynbss = s;
3496cb2a 1609 if (s == NULL)
07d6d2b8 1610 return FALSE;
6edf0760 1611 /* The .rel[a].bss section holds copy relocs. This section is not
07d6d2b8
AM		 1612 normally needed. We need to create it here, though, so that the
1613 linker will map it to an output section. We can't just create it
1614 only if we need it, because we will not know whether we need it
1615 until we have seen all the input files, and the first time the
1616 main linker code calls BFD after examining all the input files
1617 (size_dynamic_sections) the input sections have already been
1618 mapped to the output sections. If the section turns out not to
1619 be needed, we can discard it later. We will never need this
1620 section when generating a shared object, since they do not use
1621 copy relocs. */
0e1862bb 1622 if (! bfd_link_pic (info))
07d6d2b8
AM		 1623 {
1624 s = bfd_make_section_anyway_with_flags (abfd,
3d4d4302
AM		 1625 (bed->default_use_rela_p
1626 ? ".rela.bss" : ".rel.bss"),
1627 flags | SEC_READONLY);
07d6d2b8
AM		 1628 htab->srelbss = s;
1629 if (s == NULL
fd361982 1630 || !bfd_set_section_alignment (s, ptralign))
07d6d2b8
AM		 1631 return FALSE;
1632 }
6edf0760
NC		 1633 }
1634
1635 return TRUE;
1636}
1637
6edf0760
NC		 1638\f
1639/* Adjust a symbol defined by a dynamic object and referenced by a
1640 regular object. The current definition is in some section of the
1641 dynamic object, but we're not including those sections. We have to
1642 change the definition to something the rest of the link can
1643 understand. */
41978308 1644
6edf0760 1645static bfd_boolean
47b0e7ad
NC		 1646m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1647 struct elf_link_hash_entry *h)
6edf0760 1648{
f1dfbfdb 1649 struct elf_link_hash_table *htab;
6edf0760
NC		 1650 bfd *dynobj;
1651 asection *s;
6edf0760
NC		 1652
1653#ifdef DEBUG_PIC
47b0e7ad 1654 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1655#endif
41978308 1656
6edf0760 1657 dynobj = elf_hash_table (info)->dynobj;
41978308 1658
6edf0760
NC		 1659 /* Make sure we know what is going on here. */
1660 BFD_ASSERT (dynobj != NULL
07d6d2b8
AM		 1661 && (h->needs_plt
1662 || h->is_weakalias
1663 || (h->def_dynamic
1664 && h->ref_regular
1665 && !h->def_regular)));
6edf0760 1666
6edf0760
NC		 1667 /* If this is a function, put it in the procedure linkage table. We
1668 will fill in the contents of the procedure linkage table later,
1669 when we know the address of the .got section. */
1670 if (h->type == STT_FUNC
f5385ebf 1671 || h->needs_plt)
6edf0760 1672 {
0e1862bb 1673 if (! bfd_link_pic (info)
07d6d2b8
AM		 1674 && !h->def_dynamic
1675 && !h->ref_dynamic
6edf0760
NC		 1676 && h->root.type != bfd_link_hash_undefweak
1677 && h->root.type != bfd_link_hash_undefined)
07d6d2b8
AM		 1678 {
1679 /* This case can occur if we saw a PLT reloc in an input
1680 file, but the symbol was never referred to by a dynamic
1681 object. In such a case, we don't actually need to build
1682 a procedure linkage table, and we can just do a PCREL
1683 reloc instead. */
1684 h->plt.offset = (bfd_vma) -1;
1685 h->needs_plt = 0;
1686 }
6edf0760
NC		 1687
1688 return TRUE;
1689 }
1690 else
1691 h->plt.offset = (bfd_vma) -1;
41978308 1692
6edf0760
NC		 1693 /* If this is a weak symbol, and there is a real definition, the
1694 processor independent code will have arranged for us to see the
1695 real definition first, and we can just use the same value. */
60d67dc8 1696 if (h->is_weakalias)
6edf0760 1697 {
60d67dc8
AM		 1698 struct elf_link_hash_entry *def = weakdef (h);
1699 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1700 h->root.u.def.section = def->root.u.def.section;
1701 h->root.u.def.value = def->root.u.def.value;
6edf0760
NC		 1702 return TRUE;
1703 }
41978308 1704
6edf0760
NC		 1705 /* This is a reference to a symbol defined by a dynamic object which
1706 is not a function. */
41978308 1707
6edf0760
NC		 1708 /* If we are creating a shared library, we must presume that the
1709 only references to the symbol are via the global offset table.
1710 For such cases we need not do anything here; the relocations will
1711 be handled correctly by relocate_section. */
0e1862bb 1712 if (bfd_link_pic (info))
6edf0760 1713 return TRUE;
41978308 1714
6edf0760
NC		 1715 /* If there are no references to this symbol that do not use the
1716 GOT, we don't need to generate a copy reloc. */
f5385ebf 1717 if (!h->non_got_ref)
6edf0760
NC		 1718 return TRUE;
1719
1720 /* If -z nocopyreloc was given, we won't generate them either. */
3bf083ed 1721 if (0 && info->nocopyreloc)
6edf0760 1722 {
f5385ebf 1723 h->non_got_ref = 0;
6edf0760
NC		 1724 return TRUE;
1725 }
1726
3bf083ed
AM		 1727 /* If we don't find any dynamic relocs in read-only sections, then
1728 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5dbc8b37 1729 if (0 && !_bfd_elf_readonly_dynrelocs (h))
6edf0760 1730 {
f5385ebf 1731 h->non_got_ref = 0;
6edf0760
NC		 1732 return TRUE;
1733 }
1734
1735 /* We must allocate the symbol in our .dynbss section, which will
1736 become part of the .bss section of the executable. There will be
1737 an entry for this symbol in the .dynsym section. The dynamic
1738 object will contain position independent code, so all references
1739 from the dynamic object to this symbol will go through the global
1740 offset table. The dynamic linker will use the .dynsym entry to
1741 determine the address it must put in the global offset table, so
1742 both the dynamic object and the regular object will refer to the
1743 same memory location for the variable. */
41978308 1744
6edf0760 1745 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1746 if (htab == NULL)
1747 return FALSE;
1748
6edf0760
NC		 1749 s = htab->sdynbss;
1750 BFD_ASSERT (s != NULL);
41978308 1751
6edf0760
NC		 1752 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1753 to copy the initial value out of the dynamic object and into the
1754 runtime process image. We need to remember the offset into the
1755 .rela.bss section we are going to use. */
1d7e9d18 1756 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
6edf0760
NC		 1757 {
1758 asection *srel;
41978308 1759
6edf0760
NC		 1760 srel = htab->srelbss;
1761 BFD_ASSERT (srel != NULL);
eea6121a 1762 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1763 h->needs_copy = 1;
6edf0760 1764 }
41978308 1765
6cabe1ea 1766 return _bfd_elf_adjust_dynamic_copy (info, h, s);
6edf0760
NC		 1767}
1768
6edf0760
NC		 1769/* Allocate space in .plt, .got and associated reloc sections for
1770 dynamic relocs. */
41978308 1771
6edf0760 1772static bfd_boolean
47b0e7ad 1773allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 1774{
1775 struct bfd_link_info *info;
f1dfbfdb 1776 struct elf_link_hash_table *htab;
3bf083ed 1777 struct elf_dyn_relocs *p;
41978308 1778
6edf0760
NC		 1779 if (h->root.type == bfd_link_hash_indirect)
1780 return TRUE;
41978308 1781
6edf0760
NC		 1782 info = (struct bfd_link_info *) inf;
1783 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1784 if (htab == NULL)
1785 return FALSE;
41978308 1786
f1dfbfdb 1787 if (htab->dynamic_sections_created
6edf0760
NC		 1788 && h->plt.refcount > 0)
1789 {
1790 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 1791 Undefined weak syms won't yet be marked as dynamic. */
6edf0760 1792 if (h->dynindx == -1
07d6d2b8
AM		 1793 && !h->forced_local)
1794 {
1795 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1796 return FALSE;
1797 }
41978308 1798
0e1862bb 1799 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
07d6d2b8 1800 {
f1dfbfdb 1801 asection *s = htab->splt;
07d6d2b8
AM		 1802
1803 /* If this is the first .plt entry, make room for the special
1804 first entry. */
1805 if (s->size == 0)
1806 s->size += PLT_ENTRY_SIZE;
1807
1808 h->plt.offset = s->size;
1809
1810 /* If this symbol is not defined in a regular file, and we are
1811 not generating a shared library, then set the symbol to this
1812 location in the .plt. This is required to make function
1813 pointers compare as equal between the normal executable and
1814 the shared library. */
1815 if (! bfd_link_pic (info)
1816 && !h->def_regular)
1817 {
1818 h->root.u.def.section = s;
1819 h->root.u.def.value = h->plt.offset;
1820 }
1821
1822 /* Make room for this entry. */
1823 s->size += PLT_ENTRY_SIZE;
1824
1825 /* We also need to make an entry in the .got.plt section, which
1826 will be placed in the .got section by the linker script. */
f1dfbfdb 1827 htab->sgotplt->size += 4;
07d6d2b8
AM		 1828
1829 /* We also need to make an entry in the .rel.plt section. */
f1dfbfdb 1830 htab->srelplt->size += sizeof (Elf32_External_Rela);
07d6d2b8 1831 }
6edf0760 1832 else
07d6d2b8
AM		 1833 {
1834 h->plt.offset = (bfd_vma) -1;
1835 h->needs_plt = 0;
1836 }
6edf0760
NC		 1837 }
1838 else
1839 {
1840 h->plt.offset = (bfd_vma) -1;
f5385ebf 1841 h->needs_plt = 0;
6edf0760 1842 }
41978308 1843
6edf0760
NC		 1844 if (h->got.refcount > 0)
1845 {
1846 asection *s;
1847 bfd_boolean dyn;
41978308 1848
6edf0760 1849 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 1850 Undefined weak syms won't yet be marked as dynamic. */
6edf0760 1851 if (h->dynindx == -1
07d6d2b8
AM		 1852 && !h->forced_local)
1853 {
1854 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1855 return FALSE;
1856 }
41978308 1857
f1dfbfdb 1858 s = htab->sgot;
6edf0760 1859
eea6121a
AM		 1860 h->got.offset = s->size;
1861 s->size += 4;
f1dfbfdb 1862 dyn = htab->dynamic_sections_created;
0e1862bb 1863 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
f1dfbfdb 1864 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 1865 }
1866 else
1867 h->got.offset = (bfd_vma) -1;
41978308 1868
190eb1dd 1869 if (h->dyn_relocs == NULL)
6edf0760 1870 return TRUE;
41978308 1871
6edf0760
NC		 1872 /* In the shared -Bsymbolic case, discard space allocated for
1873 dynamic pc-relative relocs against symbols which turn out to be
1874 defined in regular objects. For the normal shared case, discard
1875 space for pc-relative relocs that have become local due to symbol
1876 visibility changes. */
1877
0e1862bb 1878 if (bfd_link_pic (info))
6edf0760 1879 {
f5385ebf 1880 if (h->def_regular
07d6d2b8
AM		 1881 && (h->forced_local
1882 || info->symbolic))
1883 {
1884 struct elf_dyn_relocs **pp;
1885
190eb1dd 1886 for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
07d6d2b8
AM		 1887 {
1888 p->count -= p->pc_count;
1889 p->pc_count = 0;
1890 if (p->count == 0)
1891 *pp = p->next;
1892 else
1893 pp = &p->next;
1894 }
1895 }
22d606e9
AM		 1896
1897 /* Also discard relocs on undefined weak syms with non-default
1898 visibility. */
190eb1dd 1899 if (h->dyn_relocs != NULL
22d606e9
AM		 1900 && h->root.type == bfd_link_hash_undefweak)
1901 {
1902 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
190eb1dd 1903 h->dyn_relocs = NULL;
22d606e9
AM		 1904
1905 /* Make sure undefined weak symbols are output as a dynamic
1906 symbol in PIEs. */
1907 else if (h->dynindx == -1
1908 && !h->forced_local)
1909 {
1910 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1911 return FALSE;
1912 }
1913 }
6edf0760
NC		 1914 }
1915 else
1916 {
1917 /* For the non-shared case, discard space for relocs against
07d6d2b8
AM		 1918 symbols which turn out to need copy relocs or are not
1919 dynamic. */
41978308 1920
f5385ebf 1921 if (!h->non_got_ref
07d6d2b8
AM		 1922 && ((h->def_dynamic
1923 && !h->def_regular)
f1dfbfdb 1924 || (htab->dynamic_sections_created
07d6d2b8
AM		 1925 && (h->root.type == bfd_link_hash_undefweak
1926 || h->root.type == bfd_link_hash_undefined))))
1927 {
1928 /* Make sure this symbol is output as a dynamic symbol.
1929 Undefined weak syms won't yet be marked as dynamic. */
1930 if (h->dynindx == -1
1931 && !h->forced_local)
1932 {
1933 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1934 return FALSE;
1935 }
1936
1937 /* If that succeeded, we know we'll be keeping all the
1938 relocs. */
1939 if (h->dynindx != -1)
1940 goto keep;
1941 }
41978308 1942
190eb1dd 1943 h->dyn_relocs = NULL;
41978308 1944
6edf0760
NC		 1945 keep: ;
1946 }
41978308 1947
6edf0760 1948 /* Finally, allocate space. */
190eb1dd 1949 for (p = h->dyn_relocs; p != NULL; p = p->next)
6edf0760
NC		 1950 {
1951 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 1952 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 1953 }
41978308 1954
6edf0760
NC		 1955 return TRUE;
1956}
47b0e7ad 1957
6edf0760 1958/* Set the sizes of the dynamic sections. */
41978308 1959
6edf0760 1960static bfd_boolean
47b0e7ad
NC		 1961m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
1962 struct bfd_link_info *info)
6edf0760 1963{
f1dfbfdb 1964 struct elf_link_hash_table *htab;
6edf0760
NC		 1965 bfd *dynobj;
1966 asection *s;
1967 bfd_boolean relocs;
1968 bfd *ibfd;
1969
1970#ifdef DEBUG_PIC
47b0e7ad 1971 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC		 1972#endif
1973
1974 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1975 if (htab == NULL)
1976 return FALSE;
1977
f1dfbfdb 1978 dynobj = htab->dynobj;
6edf0760
NC		 1979 BFD_ASSERT (dynobj != NULL);
1980
f1dfbfdb 1981 if (htab->dynamic_sections_created)
252b5132 1982 {
6edf0760 1983 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 1984 if (bfd_link_executable (info) && !info->nointerp)
6edf0760 1985 {
3d4d4302 1986 s = bfd_get_linker_section (dynobj, ".interp");
6edf0760 1987 BFD_ASSERT (s != NULL);
eea6121a 1988 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC		 1989 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1990 }
252b5132
RH		 1991 }
1992
6edf0760
NC		 1993 /* Set up .got offsets for local syms, and space for local dynamic
1994 relocs. */
c72f2fb2 1995 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
6edf0760
NC		 1996 {
1997 bfd_signed_vma *local_got;
1998 bfd_signed_vma *end_local_got;
1999 bfd_size_type locsymcount;
2000 Elf_Internal_Shdr *symtab_hdr;
2001 asection *srel;
252b5132 2002
6edf0760 2003 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
07d6d2b8 2004 continue;
252b5132 2005
6edf0760 2006 for (s = ibfd->sections; s != NULL; s = s->next)
07d6d2b8
AM		 2007 {
2008 struct elf_dyn_relocs *p;
2009
2010 for (p = ((struct elf_dyn_relocs *)
2011 elf_section_data (s)->local_dynrel);
2012 p != NULL;
2013 p = p->next)
2014 {
2015 if (! bfd_is_abs_section (p->sec)
2016 && bfd_is_abs_section (p->sec->output_section))
2017 {
2018 /* Input section has been discarded, either because
2019 it is a copy of a linkonce section or due to
2020 linker script /DISCARD/, so we'll be discarding
2021 the relocs too. */
2022 }
2023 else if (p->count != 0)
2024 {
2025 srel = elf_section_data (p->sec)->sreloc;
2026 srel->size += p->count * sizeof (Elf32_External_Rela);
2027 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2028 info->flags |= DF_TEXTREL;
2029 }
2030 }
2031 }
6edf0760
NC		 2032
2033 local_got = elf_local_got_refcounts (ibfd);
2034 if (!local_got)
07d6d2b8 2035 continue;
6edf0760
NC		 2036
2037 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2038 locsymcount = symtab_hdr->sh_info;
2039 end_local_got = local_got + locsymcount;
f1dfbfdb
L		 2040 s = htab->sgot;
2041 srel = htab->srelgot;
6edf0760 2042 for (; local_got < end_local_got; ++local_got)
07d6d2b8
AM		 2043 {
2044 if (*local_got > 0)
2045 {
2046 *local_got = s->size;
2047 s->size += 4;
2048 if (bfd_link_pic (info))
2049 srel->size += sizeof (Elf32_External_Rela);
2050 }
2051 else
2052 *local_got = (bfd_vma) -1;
2053 }
6edf0760
NC		 2054 }
2055
2056 /* Allocate global sym .plt and .got entries, and space for global
2057 sym dynamic relocs. */
f1dfbfdb 2058 elf_link_hash_traverse (htab, allocate_dynrelocs, info);
6edf0760
NC		 2059
2060 /* We now have determined the sizes of the various dynamic sections.
2061 Allocate memory for them. */
2062 relocs = FALSE;
2063 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2064 {
6edf0760 2065 if ((s->flags & SEC_LINKER_CREATED) == 0)
07d6d2b8 2066 continue;
252b5132 2067
f1dfbfdb
L		 2068 if (s == htab->splt
2069 || s == htab->sgot
2070 || s == htab->sgotplt
c456f082 2071 || s == htab->sdynbss)
07d6d2b8
AM		 2072 {
2073 /* Strip this section if we don't need it; see the
2074 comment below. */
2075 }
fd361982 2076 else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
07d6d2b8 2077 {
f1dfbfdb 2078 if (s->size != 0 && s != htab->srelplt)
07d6d2b8
AM		 2079 relocs = TRUE;
2080
2081 /* We use the reloc_count field as a counter if we need
2082 to copy relocs into the output file. */
2083 s->reloc_count = 0;
2084 }
252b5132 2085 else
47b0e7ad
NC		 2086 /* It's not one of our sections, so don't allocate space. */
2087 continue;
6edf0760 2088
eea6121a 2089 if (s->size == 0)
07d6d2b8
AM		 2090 {
2091 /* If we don't need this section, strip it from the
2092 output file. This is mostly to handle .rela.bss and
2093 .rela.plt. We must create both sections in
2094 create_dynamic_sections, because they must be created
2095 before the linker maps input sections to output
2096 sections. The linker does that before
2097 adjust_dynamic_symbol is called, and it is that
2098 function which decides whether anything needs to go
2099 into these sections. */
2100 s->flags |= SEC_EXCLUDE;
2101 continue;
2102 }
6edf0760 2103
c456f082
AM		 2104 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2105 continue;
2106
6edf0760 2107 /* Allocate memory for the section contents. We use bfd_zalloc
07d6d2b8
AM		 2108 here in case unused entries are not reclaimed before the
2109 section's contents are written out. This should not happen,
2110 but this way if it does, we get a R_M32R_NONE reloc instead
2111 of garbage. */
47b0e7ad 2112 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760 2113 if (s->contents == NULL)
07d6d2b8 2114 return FALSE;
6edf0760
NC		 2115 }
2116
3084d7a2 2117 return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs);
252b5132 2118}
47b0e7ad 2119
252b5132
RH		 2120/* Relocate an M32R/D ELF section.
2121 There is some attempt to make this function usable for many architectures,
f0fe0e16 2122 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH		 2123
2124 The RELOCATE_SECTION function is called by the new ELF backend linker
2125 to handle the relocations for a section.
2126
2127 The relocs are always passed as Rela structures; if the section
2128 actually uses Rel structures, the r_addend field will always be
2129 zero.
2130
2131 This function is responsible for adjust the section contents as
2132 necessary, and (if using Rela relocs and generating a
1049f94e 2133 relocatable output file) adjusting the reloc addend as
252b5132
RH		 2134 necessary.
2135
2136 This function does not have to worry about setting the reloc
2137 address or the reloc symbol index.
2138
2139 LOCAL_SYMS is a pointer to the swapped in local symbols.
2140
2141 LOCAL_SECTIONS is an array giving the section in the input file
2142 corresponding to the st_shndx field of each local symbol.
2143
2144 The global hash table entry for the global symbols can be found
2145 via elf_sym_hashes (input_bfd).
2146
1049f94e 2147 When generating relocatable output, this function must handle
252b5132
RH		 2148 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2149 going to be the section symbol corresponding to the output
2150 section, which means that the addend must be adjusted
2151 accordingly. */
2152
b34976b6 2153static bfd_boolean
47b0e7ad
NC		 2154m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2155 struct bfd_link_info *info,
2156 bfd *input_bfd,
2157 asection *input_section,
2158 bfd_byte *contents,
2159 Elf_Internal_Rela *relocs,
2160 Elf_Internal_Sym *local_syms,
2161 asection **local_sections)
252b5132
RH		 2162{
2163 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2164 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2165 Elf_Internal_Rela *rel, *relend;
2166 /* Assume success. */
b34976b6 2167 bfd_boolean ret = TRUE;
f1dfbfdb 2168 struct elf_link_hash_table *htab = m32r_elf_hash_table (info);
6edf0760
NC		 2169 bfd_vma *local_got_offsets;
2170 asection *sgot, *splt, *sreloc;
07515404 2171 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760 2172
4dfe6ac6
NC		 2173 if (htab == NULL)
2174 return FALSE;
2175
6edf0760 2176 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2177
f1dfbfdb
L		 2178 sgot = htab->sgot;
2179 splt = htab->splt;
6edf0760 2180 sreloc = NULL;
b491616a 2181
252b5132
RH		 2182 rel = relocs;
2183 relend = relocs + input_section->reloc_count;
2184 for (; rel < relend; rel++)
2185 {
2186 int r_type;
2187 reloc_howto_type *howto;
2188 unsigned long r_symndx;
6edf0760 2189 struct elf_link_hash_entry *h;
252b5132 2190 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
07d6d2b8
AM		 2191 ensure it's zero (we use REL relocs, not RELA). Therefore this
2192 should be assigning zero to `addend', but for clarity we use
2193 `r_addend'. */
252b5132
RH		 2194 bfd_vma addend = rel->r_addend;
2195 bfd_vma offset = rel->r_offset;
ab96bf03 2196 bfd_vma relocation;
252b5132
RH		 2197 Elf_Internal_Sym *sym;
2198 asection *sec;
2199 const char *sym_name;
2200 bfd_reloc_status_type r;
2201 const char *errmsg = NULL;
6edf0760 2202 bfd_boolean use_rel = FALSE;
252b5132
RH		 2203
2204 h = NULL;
2205 r_type = ELF32_R_TYPE (rel->r_info);
2206 if (r_type < 0 || r_type >= (int) R_M32R_max)
2207 {
695344c0 2208 /* xgettext:c-format */
0aa13fee 2209 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4eca0228 2210 input_bfd, (int) r_type);
252b5132 2211 bfd_set_error (bfd_error_bad_value);
b34976b6 2212 ret = FALSE;
252b5132
RH		 2213 continue;
2214 }
2215
47b0e7ad 2216 if ( r_type == R_M32R_GNU_VTENTRY
07d6d2b8
AM		 2217 || r_type == R_M32R_GNU_VTINHERIT
2218 || r_type == R_M32R_NONE
2219 || r_type == R_M32R_RELA_GNU_VTENTRY
2220 || r_type == R_M32R_RELA_GNU_VTINHERIT)
2221 continue;
252b5132 2222
6edf0760 2223 if (r_type <= R_M32R_GNU_VTENTRY)
07d6d2b8 2224 use_rel = TRUE;
6edf0760 2225
252b5132
RH		 2226 howto = m32r_elf_howto_table + r_type;
2227 r_symndx = ELF32_R_SYM (rel->r_info);
2228
ab96bf03
AM		 2229 sym = NULL;
2230 sec = NULL;
2231 h = NULL;
2232
2233 if (r_symndx < symtab_hdr->sh_info)
2234 {
2235 /* Local symbol. */
2236 sym = local_syms + r_symndx;
2237 sec = local_sections[r_symndx];
2238 sym_name = "<local symbol>";
2239
2240 if (!use_rel)
2241 {
2242 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2243 addend = rel->r_addend;
2244 }
2245 else
2246 {
2247 relocation = (sec->output_section->vma
2248 + sec->output_offset
2249 + sym->st_value);
2250 }
2251 }
2252 else
2253 {
2254 /* External symbol. */
2255 relocation = 0;
2256
2257 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8a5da09b
AM		 2258
2259 if (info->wrap_hash != NULL
2260 && (input_section->flags & SEC_DEBUGGING) != 0)
2261 h = ((struct elf_link_hash_entry *)
2262 unwrap_hash_lookup (info, input_bfd, &h->root));
2263
ab96bf03
AM		 2264 while (h->root.type == bfd_link_hash_indirect
2265 || h->root.type == bfd_link_hash_warning)
2266 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2267 sym_name = h->root.root.string;
2268
2269 if (h->root.type == bfd_link_hash_defined
2270 || h->root.type == bfd_link_hash_defweak)
2271 {
2272 bfd_boolean dyn;
2273 sec = h->root.u.def.section;
2274
f1dfbfdb 2275 dyn = htab->dynamic_sections_created;
ab96bf03
AM		 2276 sec = h->root.u.def.section;
2277 if (r_type == R_M32R_GOTPC24
2278 || (r_type == R_M32R_GOTPC_HI_ULO
2279 || r_type == R_M32R_GOTPC_HI_SLO
2280 || r_type == R_M32R_GOTPC_LO)
2281 || (r_type == R_M32R_26_PLTREL
2282 && h->plt.offset != (bfd_vma) -1)
2283 || ((r_type == R_M32R_GOT24
2284 || r_type == R_M32R_GOT16_HI_ULO
2285 || r_type == R_M32R_GOT16_HI_SLO
2286 || r_type == R_M32R_GOT16_LO)
2287 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L		 2288 bfd_link_pic (info),
2289 h)
2290 && (! bfd_link_pic (info)
ab96bf03
AM		 2291 || (! info->symbolic && h->dynindx != -1)
2292 || !h->def_regular))
0e1862bb 2293 || (bfd_link_pic (info)
ab96bf03
AM		 2294 && ((! info->symbolic && h->dynindx != -1)
2295 || !h->def_regular)
2296 && (((r_type == R_M32R_16_RELA
2297 || r_type == R_M32R_32_RELA
2298 || r_type == R_M32R_24_RELA
2299 || r_type == R_M32R_HI16_ULO_RELA
2300 || r_type == R_M32R_HI16_SLO_RELA
2301 || r_type == R_M32R_LO16_RELA)
2302 && !h->forced_local)
2303 || r_type == R_M32R_REL32
2304 || r_type == R_M32R_10_PCREL_RELA
2305 || r_type == R_M32R_18_PCREL_RELA
2306 || r_type == R_M32R_26_PCREL_RELA)
2307 && ((input_section->flags & SEC_ALLOC) != 0
2308 /* DWARF will emit R_M32R_16(24,32) relocations
2309 in its sections against symbols defined
2310 externally in shared libraries. We can't do
2311 anything with them here. */
2312 || ((input_section->flags & SEC_DEBUGGING) != 0
2313 && h->def_dynamic))))
2314 {
2315 /* In these cases, we don't need the relocation
2316 value. We check specially because in some
2317 obscure cases sec->output_section will be NULL. */
2318 }
2319 else if (sec->output_section != NULL)
2320 relocation = (h->root.u.def.value
2321 + sec->output_section->vma
2322 + sec->output_offset);
0e1862bb 2323 else if (!bfd_link_relocatable (info)
1d5316ab
AM		 2324 && (_bfd_elf_section_offset (output_bfd, info,
2325 input_section,
2326 rel->r_offset)
2327 != (bfd_vma) -1))
ab96bf03 2328 {
4eca0228 2329 _bfd_error_handler
695344c0 2330 /* xgettext:c-format */
2dcf00ce 2331 (_("%pB(%pA+%#" PRIx64 "): unresolvable %s relocation "
d42c267e 2332 "against symbol `%s'"),
ab96bf03
AM		 2333 input_bfd,
2334 input_section,
2dcf00ce 2335 (uint64_t) rel->r_offset,
ab96bf03
AM		 2336 howto->name,
2337 h->root.root.string);
2338 }
2339 }
2340 else if (h->root.type == bfd_link_hash_undefweak)
2341 ;
2342 else if (info->unresolved_syms_in_objects == RM_IGNORE
2343 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2344 ;
0e1862bb 2345 else if (!bfd_link_relocatable (info))
95a51568
FS		 2346 info->callbacks->undefined_symbol
2347 (info, h->root.root.string, input_bfd, input_section, offset,
2348 (info->unresolved_syms_in_objects == RM_DIAGNOSE
2349 && !info->warn_unresolved_syms)
2350 || ELF_ST_VISIBILITY (h->other));
2351 }
ab96bf03 2352
dbaa2011 2353 if (sec != NULL && discarded_section (sec))
e4067dbb 2354 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2355 rel, 1, relend, howto, 0, contents);
ab96bf03 2356
0e1862bb 2357 if (bfd_link_relocatable (info) && !use_rel)
252b5132 2358 {
1049f94e 2359 /* This is a relocatable link. We don't have to change
252b5132
RH		 2360 anything, unless the reloc is against a section symbol,
2361 in which case we have to adjust according to where the
2362 section symbol winds up in the output section. */
ab96bf03
AM		 2363 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2364 rel->r_addend += sec->output_offset;
2365 continue;
2366 }
252b5132 2367
0e1862bb 2368 if (bfd_link_relocatable (info) && use_rel)
ab96bf03
AM		 2369 {
2370 /* This is a relocatable link. We don't have to change
2371 anything, unless the reloc is against a section symbol,
2372 in which case we have to adjust according to where the
2373 section symbol winds up in the output section. */
2374 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2375 continue;
252b5132 2376
ab96bf03 2377 addend += sec->output_offset;
252b5132 2378
252b5132
RH		 2379 /* If partial_inplace, we need to store any additional addend
2380 back in the section. */
2381 if (! howto->partial_inplace)
2382 continue;
2383 /* ??? Here is a nice place to call a special_function
2384 like handler. */
2385 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2386 r = _bfd_relocate_contents (howto, input_bfd,
2387 addend, contents + offset);
2388 else
2389 {
2390 Elf_Internal_Rela *lorel;
2391
2392 /* We allow an arbitrary number of HI16 relocs before the
2393 LO16 reloc. This permits gcc to emit the HI and LO relocs
2394 itself. */
2395 for (lorel = rel + 1;
2396 (lorel < relend
2397 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2398 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2399 lorel++)
2400 continue;
2401 if (lorel < relend
2402 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2403 {
2404 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2405 contents, addend);
2406 r = bfd_reloc_ok;
2407 }
2408 else
2409 r = _bfd_relocate_contents (howto, input_bfd,
2410 addend, contents + offset);
2411 }
252b5132
RH		 2412 }
2413 else
2414 {
252b5132 2415 /* Sanity check the address. */
07515404 2416 if (offset > high_address)
252b5132
RH		 2417 {
2418 r = bfd_reloc_outofrange;
2419 goto check_reloc;
2420 }
2421
2422 switch ((int) r_type)
2423 {
07d6d2b8
AM		 2424 case R_M32R_GOTOFF:
2425 /* Relocation is relative to the start of the global offset
2426 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2427
07d6d2b8
AM		 2428 ld24 rx. #label@GOTOFF + addend
2429 sub rx, r12. */
097f809a 2430
07d6d2b8 2431 BFD_ASSERT (sgot != NULL);
097f809a 2432
07d6d2b8
AM		 2433 relocation = -(relocation - sgot->output_section->vma);
2434 rel->r_addend = -rel->r_addend;
2435 break;
097f809a 2436
07d6d2b8
AM		 2437 case R_M32R_GOTOFF_HI_ULO:
2438 case R_M32R_GOTOFF_HI_SLO:
2439 case R_M32R_GOTOFF_LO:
097f809a
NC		 2440 BFD_ASSERT (sgot != NULL);
2441
2442 relocation -= sgot->output_section->vma;
2443
2444 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2445 && ((relocation + rel->r_addend) & 0x8000))
2446 rel->r_addend += 0x10000;
2447 break;
2448
07d6d2b8
AM		 2449 case R_M32R_GOTPC24:
2450 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2451 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2452 */
2453 relocation = sgot->output_section->vma;
2454 break;
2455
2456 case R_M32R_GOTPC_HI_ULO:
2457 case R_M32R_GOTPC_HI_SLO:
2458 case R_M32R_GOTPC_LO:
2459 {
2460 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2461 bl .+4
2462 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2463 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2464 or
2465 bl .+4
2466 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2467 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2468 */
2469 relocation = sgot->output_section->vma;
2470 relocation -= (input_section->output_section->vma
2471 + input_section->output_offset
2472 + rel->r_offset);
2473 if ((r_type == R_M32R_GOTPC_HI_SLO)
2474 && ((relocation + rel->r_addend) & 0x8000))
2475 rel->r_addend += 0x10000;
2476
2477 break;
2478 }
2479 case R_M32R_GOT16_HI_ULO:
2480 case R_M32R_GOT16_HI_SLO:
2481 case R_M32R_GOT16_LO:
2482 /* Fall through. */
2483 case R_M32R_GOT24:
2484 /* Relocation is to the entry for this symbol in the global
2485 offset table. */
2486 BFD_ASSERT (sgot != NULL);
2487
2488 if (h != NULL)
2489 {
2490 bfd_boolean dyn;
2491 bfd_vma off;
2492
2493 off = h->got.offset;
2494 BFD_ASSERT (off != (bfd_vma) -1);
2495
f1dfbfdb 2496 dyn = htab->dynamic_sections_created;
07d6d2b8 2497 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L		 2498 bfd_link_pic (info),
2499 h)
07d6d2b8
AM		 2500 || (bfd_link_pic (info)
2501 && (info->symbolic
2502 || h->dynindx == -1
2503 || h->forced_local)
2504 && h->def_regular))
2505 {
2506 /* This is actually a static link, or it is a
2507 -Bsymbolic link and the symbol is defined
2508 locally, or the symbol was forced to be local
2509 because of a version file. We must initialize
2510 this entry in the global offset table. Since the
2511 offset must always be a multiple of 4, we use the
2512 least significant bit to record whether we have
2513 initialized it already.
2514
2515 When doing a dynamic link, we create a .rela.got
2516 relocation entry to initialize the value. This
2517 is done in the finish_dynamic_symbol routine. */
2518 if ((off & 1) != 0)
2519 off &= ~1;
2520 else
2521 {
2522 bfd_put_32 (output_bfd, relocation,
2523 sgot->contents + off);
2524 h->got.offset |= 1;
2525 }
2526 }
2527
2528 relocation = sgot->output_offset + off;
2529 }
2530 else
2531 {
2532 bfd_vma off;
2533 bfd_byte *loc;
2534
2535 BFD_ASSERT (local_got_offsets != NULL
2536 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2537
2538 off = local_got_offsets[r_symndx];
2539
2540 /* The offset must always be a multiple of 4. We use
2541 the least significant bit to record whether we have
2542 already processed this entry. */
2543 if ((off & 1) != 0)
2544 off &= ~1;
2545 else
2546 {
2547 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2548
2549 if (bfd_link_pic (info))
2550 {
2551 asection *srelgot;
2552 Elf_Internal_Rela outrel;
2553
2554 /* We need to generate a R_M32R_RELATIVE reloc
2555 for the dynamic linker. */
f1dfbfdb 2556 srelgot = htab->srelgot;
07d6d2b8
AM		 2557 BFD_ASSERT (srelgot != NULL);
2558
2559 outrel.r_offset = (sgot->output_section->vma
2560 + sgot->output_offset
2561 + off);
2562 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2563 outrel.r_addend = relocation;
2564 loc = srelgot->contents;
2565 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2566 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2567 ++srelgot->reloc_count;
2568 }
2569
2570 local_got_offsets[r_symndx] |= 1;
2571 }
2572
2573 relocation = sgot->output_offset + off;
2574 }
2575 if ((r_type == R_M32R_GOT16_HI_SLO)
2576 && ((relocation + rel->r_addend) & 0x8000))
2577 rel->r_addend += 0x10000;
2578
2579 break;
2580
2581 case R_M32R_26_PLTREL:
2582 /* Relocation is to the entry for this symbol in the
2583 procedure linkage table. */
2584
2585 /* The native assembler will generate a 26_PLTREL reloc
2586 for a local symbol if you assemble a call from one
2587 section to another when using -K pic. */
2588 if (h == NULL)
2589 break;
2590
2591 if (h->forced_local)
2592 break;
2593
2594 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC		 2595 /* We didn't make a PLT entry for this symbol. This
2596 happens when statically linking PIC code, or when
2597 using -Bsymbolic. */
2598 break;
41978308 2599
07d6d2b8
AM		 2600 relocation = (splt->output_section->vma
2601 + splt->output_offset
2602 + h->plt.offset);
2603 break;
41978308 2604
07d6d2b8 2605 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC		 2606 if ((relocation + rel->r_addend) & 0x8000)
2607 rel->r_addend += 0x10000;
07d6d2b8 2608 /* Fall through. */
47b0e7ad 2609
07d6d2b8
AM		 2610 case R_M32R_16_RELA:
2611 case R_M32R_24_RELA:
2612 case R_M32R_32_RELA:
2613 case R_M32R_REL32:
8ce757c4 2614 case R_M32R_10_PCREL_RELA:
07d6d2b8
AM		 2615 case R_M32R_18_PCREL_RELA:
2616 case R_M32R_26_PCREL_RELA:
2617 case R_M32R_HI16_ULO_RELA:
2618 case R_M32R_LO16_RELA:
2619 if (bfd_link_pic (info)
2620 && r_symndx != STN_UNDEF
2621 && (input_section->flags & SEC_ALLOC) != 0
2622 && (( r_type != R_M32R_10_PCREL_RELA
2623 && r_type != R_M32R_18_PCREL_RELA
2624 && r_type != R_M32R_26_PCREL_RELA
2625 && r_type != R_M32R_REL32)
2626 || (h != NULL
2627 && h->dynindx != -1
2628 && (! info->symbolic
2629 || !h->def_regular))))
2630 {
2631 Elf_Internal_Rela outrel;
2632 bfd_boolean skip, relocate;
2633 bfd_byte *loc;
2634
2635 /* When generating a shared object, these relocations
2636 are copied into the output file to be resolved at run
2637 time. */
2638 if (sreloc == NULL)
2639 {
83bac4b0
NC		 2640 sreloc = _bfd_elf_get_dynamic_reloc_section
2641 (input_bfd, input_section, /*rela?*/ TRUE);
2642 if (sreloc == NULL)
2643 return FALSE;
07d6d2b8
AM		 2644 }
2645
2646 skip = FALSE;
2647 relocate = FALSE;
2648
2649 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2650 info,
2651 input_section,
2652 rel->r_offset);
2653 if (outrel.r_offset == (bfd_vma) -1)
2654 skip = TRUE;
2655 else if (outrel.r_offset == (bfd_vma) -2)
2656 skip = relocate = TRUE;
2657 outrel.r_offset += (input_section->output_section->vma
2658 + input_section->output_offset);
2659
2660 if (skip)
2661 memset (&outrel, 0, sizeof outrel);
2662 else if ( r_type == R_M32R_10_PCREL_RELA
2663 || r_type == R_M32R_18_PCREL_RELA
2664 || r_type == R_M32R_26_PCREL_RELA
2665 || r_type == R_M32R_REL32)
2666 {
2667 BFD_ASSERT (h != NULL && h->dynindx != -1);
2668 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2669 outrel.r_addend = rel->r_addend;
2670 }
2671 else
2672 {
2673 /* h->dynindx may be -1 if this symbol was marked to
2674 become local. */
2675 if (h == NULL
2676 || ((info->symbolic || h->dynindx == -1)
2677 && h->def_regular))
2678 {
2679 relocate = TRUE;
2680 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2681 outrel.r_addend = relocation + rel->r_addend;
2682 }
2683 else
2684 {
2685 BFD_ASSERT (h->dynindx != -1);
2686 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2687 outrel.r_addend = relocation + rel->r_addend;
2688 }
2689 }
2690
2691 loc = sreloc->contents;
2692 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2693 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2694 ++sreloc->reloc_count;
2695
2696 /* If this reloc is against an external symbol, we do
2697 not want to fiddle with the addend. Otherwise, we
2698 need to include the symbol value so that it becomes
2699 an addend for the dynamic reloc. */
2700 if (! relocate)
2701 continue;
8ce757c4 2702 break;
07d6d2b8 2703 }
8ce757c4
NC		 2704 else if (r_type != R_M32R_10_PCREL_RELA)
2705 break;
2706 /* Fall through. */
41978308 2707
252b5132
RH		 2708 case (int) R_M32R_10_PCREL :
2709 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2710 contents, offset,
2711 sec, relocation, addend);
07d6d2b8 2712 goto check_reloc;
252b5132
RH		 2713
2714 case (int) R_M32R_HI16_SLO :
2715 case (int) R_M32R_HI16_ULO :
2716 {
2717 Elf_Internal_Rela *lorel;
2718
2719 /* We allow an arbitrary number of HI16 relocs before the
2720 LO16 reloc. This permits gcc to emit the HI and LO relocs
2721 itself. */
2722 for (lorel = rel + 1;
2723 (lorel < relend
2724 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2725 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2726 lorel++)
2727 continue;
2728 if (lorel < relend
2729 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2730 {
2731 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2732 contents, relocation + addend);
2733 r = bfd_reloc_ok;
2734 }
2735 else
2736 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2737 contents, offset,
2738 relocation, addend);
2739 }
6edf0760 2740
07d6d2b8 2741 goto check_reloc;
252b5132 2742
07d6d2b8 2743 case (int) R_M32R_SDA16_RELA:
252b5132
RH		 2744 case (int) R_M32R_SDA16 :
2745 {
2746 const char *name;
2747
2748 BFD_ASSERT (sec != NULL);
fd361982 2749 name = bfd_section_name (sec);
252b5132 2750
47b0e7ad 2751 if ( strcmp (name, ".sdata") == 0
252b5132
RH		 2752 || strcmp (name, ".sbss") == 0
2753 || strcmp (name, ".scommon") == 0)
2754 {
2755 bfd_vma sda_base;
2756 bfd *out_bfd = sec->output_section->owner;
2757
2758 r = m32r_elf_final_sda_base (out_bfd, info,
2759 &errmsg,
2760 &sda_base);
2761 if (r != bfd_reloc_ok)
2762 {
b34976b6 2763 ret = FALSE;
252b5132
RH		 2764 goto check_reloc;
2765 }
2766
2767 /* At this point `relocation' contains the object's
2768 address. */
2769 relocation -= sda_base;
2770 /* Now it contains the offset from _SDA_BASE_. */
2771 }
2772 else
2773 {
4eca0228 2774 _bfd_error_handler
695344c0 2775 /* xgettext:c-format */
38f14ab8
AM		 2776 (_("%pB: the target (%s) of an %s relocation"
2777 " is in the wrong section (%pA)"),
d003868e 2778 input_bfd,
8f615d07 2779 sym_name,
c08bb8dd
AM		 2780 m32r_elf_howto_table[(int) r_type].name,
2781 sec);
252b5132 2782 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 2783 ret = FALSE;
252b5132
RH		 2784 continue;
2785 }
2786 }
07d6d2b8 2787 /* Fall through. */
6edf0760
NC		 2788
2789 default : /* OLD_M32R_RELOC */
252b5132 2790
252b5132
RH		 2791 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2792 contents, offset,
2793 relocation, addend);
6edf0760 2794 goto check_reloc;
252b5132 2795 }
6edf0760 2796
07d6d2b8
AM		 2797 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2798 contents, rel->r_offset,
2799 relocation, rel->r_addend);
6edf0760 2800
252b5132
RH		 2801 }
2802
2803 check_reloc:
2804
2805 if (r != bfd_reloc_ok)
2806 {
2807 /* FIXME: This should be generic enough to go in a utility. */
2808 const char *name;
2809
2810 if (h != NULL)
2811 name = h->root.root.string;
2812 else
2813 {
2814 name = (bfd_elf_string_from_elf_section
2815 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2816 if (name == NULL || *name == '\0')
fd361982 2817 name = bfd_section_name (sec);
252b5132
RH		 2818 }
2819
2820 if (errmsg != NULL)
2821 goto common_error;
2822
2823 switch (r)
2824 {
2825 case bfd_reloc_overflow:
1a72702b
AM		 2826 (*info->callbacks->reloc_overflow)
2827 (info, (h ? &h->root : NULL), name, howto->name,
2828 (bfd_vma) 0, input_bfd, input_section, offset);
252b5132
RH		 2829 break;
2830
2831 case bfd_reloc_undefined:
1a72702b
AM		 2832 (*info->callbacks->undefined_symbol)
2833 (info, name, input_bfd, input_section, offset, TRUE);
252b5132
RH		 2834 break;
2835
2836 case bfd_reloc_outofrange:
2837 errmsg = _("internal error: out of range error");
2838 goto common_error;
2839
2840 case bfd_reloc_notsupported:
2841 errmsg = _("internal error: unsupported relocation error");
2842 goto common_error;
2843
2844 case bfd_reloc_dangerous:
2845 errmsg = _("internal error: dangerous error");
2846 goto common_error;
2847
2848 default:
2849 errmsg = _("internal error: unknown error");
2850 /* fall through */
2851
2852 common_error:
1a72702b
AM		 2853 (*info->callbacks->warning) (info, errmsg, name, input_bfd,
2854 input_section, offset);
252b5132
RH		 2855 break;
2856 }
2857 }
2858 }
2859
2860 return ret;
2861}
6edf0760
NC		 2862
2863/* Finish up dynamic symbol handling. We set the contents of various
2864 dynamic sections here. */
47b0e7ad 2865
6edf0760 2866static bfd_boolean
47b0e7ad
NC		 2867m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
2868 struct bfd_link_info *info,
2869 struct elf_link_hash_entry *h,
2870 Elf_Internal_Sym *sym)
6edf0760 2871{
f1dfbfdb 2872 struct elf_link_hash_table *htab;
6edf0760 2873 bfd_byte *loc;
41978308 2874
6edf0760 2875#ifdef DEBUG_PIC
47b0e7ad 2876 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 2877#endif
41978308 2878
6edf0760 2879 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 2880 if (htab == NULL)
2881 return FALSE;
2882
6edf0760
NC		 2883 if (h->plt.offset != (bfd_vma) -1)
2884 {
2885 asection *splt;
2886 asection *sgot;
2887 asection *srela;
2888
2889 bfd_vma plt_index;
2890 bfd_vma got_offset;
2891 Elf_Internal_Rela rela;
41978308 2892
6edf0760 2893 /* This symbol has an entry in the procedure linkage table. Set
07d6d2b8 2894 it up. */
41978308 2895
6edf0760 2896 BFD_ASSERT (h->dynindx != -1);
41978308 2897
f1dfbfdb
L		 2898 splt = htab->splt;
2899 sgot = htab->sgotplt;
2900 srela = htab->srelplt;
6edf0760
NC		 2901 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
2902
2903 /* Get the index in the procedure linkage table which
07d6d2b8
AM		 2904 corresponds to this symbol. This is the index of this symbol
2905 in all the symbols for which we are making plt entries. The
2906 first entry in the procedure linkage table is reserved. */
6edf0760
NC		 2907 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
2908
2909 /* Get the offset into the .got table of the entry that
07d6d2b8
AM		 2910 corresponds to this function. Each .got entry is 4 bytes.
2911 The first three are reserved. */
6edf0760
NC		 2912 got_offset = (plt_index + 3) * 4;
2913
2914 /* Fill in the entry in the procedure linkage table. */
0e1862bb 2915 if (! bfd_link_pic (info))
07d6d2b8
AM		 2916 {
2917 bfd_put_32 (output_bfd,
2918 (PLT_ENTRY_WORD0b
2919 + (((sgot->output_section->vma
2920 + sgot->output_offset
2921 + got_offset) >> 16) & 0xffff)),
2922 splt->contents + h->plt.offset);
2923 bfd_put_32 (output_bfd,
2924 (PLT_ENTRY_WORD1b
2925 + ((sgot->output_section->vma
2926 + sgot->output_offset
2927 + got_offset) & 0xffff)),
2928 splt->contents + h->plt.offset + 4);
2929 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2930 splt->contents + h->plt.offset + 8);
2931 bfd_put_32 (output_bfd,
2932 (PLT_ENTRY_WORD3
2933 + plt_index * sizeof (Elf32_External_Rela)),
2934 splt->contents + h->plt.offset + 12);
2935 bfd_put_32 (output_bfd,
2936 (PLT_ENTRY_WORD4
2937 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2938 splt->contents + h->plt.offset + 16);
2939 }
6edf0760 2940 else
07d6d2b8
AM		 2941 {
2942 bfd_put_32 (output_bfd,
2943 PLT_ENTRY_WORD0 + got_offset,
2944 splt->contents + h->plt.offset);
2945 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
2946 splt->contents + h->plt.offset + 4);
2947 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2948 splt->contents + h->plt.offset + 8);
2949 bfd_put_32 (output_bfd,
2950 (PLT_ENTRY_WORD3
2951 + plt_index * sizeof (Elf32_External_Rela)),
2952 splt->contents + h->plt.offset + 12);
2953 bfd_put_32 (output_bfd,
2954 (PLT_ENTRY_WORD4
2955 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2956 splt->contents + h->plt.offset + 16);
2957 }
41978308 2958
6edf0760
NC		 2959 /* Fill in the entry in the global offset table. */
2960 bfd_put_32 (output_bfd,
07d6d2b8
AM		 2961 (splt->output_section->vma
2962 + splt->output_offset
2963 + h->plt.offset
2964 + 12), /* same offset */
2965 sgot->contents + got_offset);
6edf0760
NC		 2966
2967 /* Fill in the entry in the .rela.plt section. */
2968 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM		 2969 + sgot->output_offset
2970 + got_offset);
6edf0760
NC		 2971 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
2972 rela.r_addend = 0;
2973 loc = srela->contents;
47b0e7ad 2974 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 2975 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 2976
f5385ebf 2977 if (!h->def_regular)
07d6d2b8
AM		 2978 {
2979 /* Mark the symbol as undefined, rather than as defined in
2980 the .plt section. Leave the value alone. */
2981 sym->st_shndx = SHN_UNDEF;
2982 }
6edf0760
NC		 2983 }
2984
2985 if (h->got.offset != (bfd_vma) -1)
2986 {
2987 asection *sgot;
2988 asection *srela;
2989 Elf_Internal_Rela rela;
41978308 2990
6edf0760 2991 /* This symbol has an entry in the global offset table. Set it
07d6d2b8 2992 up. */
41978308 2993
f1dfbfdb
L		 2994 sgot = htab->sgot;
2995 srela = htab->srelgot;
6edf0760 2996 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 2997
6edf0760 2998 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM		 2999 + sgot->output_offset
3000 + (h->got.offset &~ 1));
41978308 3001
6edf0760 3002 /* If this is a -Bsymbolic link, and the symbol is defined
07d6d2b8
AM		 3003 locally, we just want to emit a RELATIVE reloc. Likewise if
3004 the symbol was forced to be local because of a version file.
3005 The entry in the global offset table will already have been
3006 initialized in the relocate_section function. */
0e1862bb 3007 if (bfd_link_pic (info)
07d6d2b8 3008 && (info->symbolic
6edf0760 3009 || h->dynindx == -1
f5385ebf 3010 || h->forced_local)
07d6d2b8
AM		 3011 && h->def_regular)
3012 {
3013 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3014 rela.r_addend = (h->root.u.def.value
3015 + h->root.u.def.section->output_section->vma
3016 + h->root.u.def.section->output_offset);
3017 }
6edf0760 3018 else
07d6d2b8 3019 {
47b0e7ad 3020 BFD_ASSERT ((h->got.offset & 1) == 0);
07d6d2b8
AM		 3021 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3022 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3023 rela.r_addend = 0;
3024 }
41978308 3025
6edf0760 3026 loc = srela->contents;
47b0e7ad 3027 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3028 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3029 ++srela->reloc_count;
3030 }
41978308 3031
f5385ebf 3032 if (h->needs_copy)
6edf0760
NC		 3033 {
3034 asection *s;
3035 Elf_Internal_Rela rela;
41978308 3036
6edf0760 3037 /* This symbols needs a copy reloc. Set it up. */
41978308 3038
6edf0760 3039 BFD_ASSERT (h->dynindx != -1
07d6d2b8
AM		 3040 && (h->root.type == bfd_link_hash_defined
3041 || h->root.type == bfd_link_hash_defweak));
41978308 3042
f1dfbfdb 3043 s = bfd_get_linker_section (htab->dynobj, ".rela.bss");
6edf0760 3044 BFD_ASSERT (s != NULL);
41978308 3045
6edf0760 3046 rela.r_offset = (h->root.u.def.value
07d6d2b8
AM		 3047 + h->root.u.def.section->output_section->vma
3048 + h->root.u.def.section->output_offset);
6edf0760
NC		 3049 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3050 rela.r_addend = 0;
3051 loc = s->contents;
47b0e7ad 3052 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3053 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3054 ++s->reloc_count;
3055 }
41978308 3056
6edf0760 3057 /* Mark some specially defined symbols as absolute. */
f1dfbfdb 3058 if (h == htab->hdynamic || h == htab->hgot)
6edf0760 3059 sym->st_shndx = SHN_ABS;
41978308 3060
6edf0760
NC		 3061 return TRUE;
3062}
3063
3064
3065/* Finish up the dynamic sections. */
41978308 3066
6edf0760 3067static bfd_boolean
47b0e7ad
NC		 3068m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3069 struct bfd_link_info *info)
6edf0760 3070{
f1dfbfdb 3071 struct elf_link_hash_table *htab;
6edf0760
NC		 3072 bfd *dynobj;
3073 asection *sdyn;
3074 asection *sgot;
3075
3076#ifdef DEBUG_PIC
47b0e7ad 3077 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3078#endif
41978308 3079
6edf0760 3080 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3081 if (htab == NULL)
3082 return FALSE;
3083
f1dfbfdb 3084 dynobj = htab->dynobj;
6edf0760 3085
f1dfbfdb 3086 sgot = htab->sgotplt;
3d4d4302 3087 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
41978308 3088
f1dfbfdb 3089 if (htab->dynamic_sections_created)
6edf0760
NC		 3090 {
3091 asection *splt;
3092 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3093
6edf0760 3094 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3095
6edf0760 3096 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3097 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC		 3098
3099 for (; dyncon < dynconend; dyncon++)
07d6d2b8
AM		 3100 {
3101 Elf_Internal_Dyn dyn;
3102 asection *s;
3103
3104 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3105
3106 switch (dyn.d_tag)
3107 {
3108 default:
3109 break;
3110
3111 case DT_PLTGOT:
f1dfbfdb 3112 s = htab->sgotplt;
07d6d2b8
AM		 3113 goto get_vma;
3114 case DT_JMPREL:
f1dfbfdb 3115 s = htab->srelplt;
07d6d2b8
AM		 3116 get_vma:
3117 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3118 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3119 break;
3120
3121 case DT_PLTRELSZ:
f1dfbfdb 3122 s = htab->srelplt;
eea6121a 3123 dyn.d_un.d_val = s->size;
07d6d2b8
AM		 3124 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3125 break;
3126 }
3127 }
41978308 3128
6edf0760 3129 /* Fill in the first entry in the procedure linkage table. */
f1dfbfdb 3130 splt = htab->splt;
eea6121a 3131 if (splt && splt->size > 0)
07d6d2b8
AM		 3132 {
3133 if (bfd_link_pic (info))
3134 {
3135 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3136 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3137 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3138 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3139 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3140 }
3141 else
3142 {
3143 unsigned long addr;
3144 /* addr = .got + 4 */
3145 addr = sgot->output_section->vma + sgot->output_offset + 4;
3146 bfd_put_32 (output_bfd,
6edf0760
NC		 3147 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3148 splt->contents);
07d6d2b8 3149 bfd_put_32 (output_bfd,
6edf0760
NC		 3150 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3151 splt->contents + 4);
07d6d2b8
AM		 3152 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3153 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3154 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3155 }
3156
3157 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3158 PLT_ENTRY_SIZE;
3159 }
6edf0760
NC		 3160 }
3161
3162 /* Fill in the first three entries in the global offset table. */
eea6121a 3163 if (sgot && sgot->size > 0)
6edf0760
NC		 3164 {
3165 if (sdyn == NULL)
07d6d2b8 3166 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
6edf0760 3167 else
07d6d2b8
AM		 3168 bfd_put_32 (output_bfd,
3169 sdyn->output_section->vma + sdyn->output_offset,
3170 sgot->contents);
6edf0760
NC		 3171 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3172 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3173
3174 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3175 }
41978308 3176
6edf0760
NC		 3177 return TRUE;
3178}
3179
252b5132
RH		 3180\f
3181/* Set the right machine number. */
47b0e7ad 3182
b34976b6 3183static bfd_boolean
47b0e7ad 3184m32r_elf_object_p (bfd *abfd)
252b5132
RH		 3185{
3186 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3187 {
3188 default:
3189 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3190 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3191 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3192 }
b34976b6 3193 return TRUE;
252b5132
RH		 3194}
3195
3196/* Store the machine number in the flags field. */
47b0e7ad 3197
cc364be6
AM		 3198static bfd_boolean
3199m32r_elf_final_write_processing (bfd *abfd)
252b5132
RH		 3200{
3201 unsigned long val;
3202
3203 switch (bfd_get_mach (abfd))
3204 {
3205 default:
3206 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3207 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3208 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH		 3209 }
3210
3211 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3212 elf_elfheader (abfd)->e_flags |= val;
cc364be6 3213 return _bfd_elf_final_write_processing (abfd);
252b5132
RH		 3214}
3215
c3668558 3216/* Function to keep M32R specific file flags. */
47b0e7ad 3217
b34976b6 3218static bfd_boolean
47b0e7ad 3219m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH		 3220{
3221 BFD_ASSERT (!elf_flags_init (abfd)
3222 || elf_elfheader (abfd)->e_flags == flags);
3223
3224 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM		 3225 elf_flags_init (abfd) = TRUE;
3226 return TRUE;
252b5132
RH		 3227}
3228
252b5132
RH		 3229/* Merge backend specific data from an object file to the output
3230 object file when linking. */
47b0e7ad 3231
b34976b6 3232static bfd_boolean
50e03d47 3233m32r_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
252b5132 3234{
50e03d47 3235 bfd *obfd = info->output_bfd;
252b5132
RH		 3236 flagword out_flags;
3237 flagword in_flags;
3238
3239 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3240 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3241 return TRUE;
252b5132
RH		 3242
3243 in_flags = elf_elfheader (ibfd)->e_flags;
3244 out_flags = elf_elfheader (obfd)->e_flags;
3245
3246 if (! elf_flags_init (obfd))
3247 {
3248 /* If the input is the default architecture then do not
3249 bother setting the flags for the output architecture,
3250 instead allow future merges to do this. If no future
3251 merges ever set these flags then they will retain their
3252 unitialised values, which surprise surprise, correspond
3253 to the default values. */
3254 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3255 return TRUE;
c3668558 3256
b34976b6 3257 elf_flags_init (obfd) = TRUE;
252b5132
RH		 3258 elf_elfheader (obfd)->e_flags = in_flags;
3259
3260 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3261 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC		 3262 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3263 bfd_get_mach (ibfd));
252b5132 3264
b34976b6 3265 return TRUE;
252b5132
RH		 3266 }
3267
3268 /* Check flag compatibility. */
3269 if (in_flags == out_flags)
b34976b6 3270 return TRUE;
252b5132
RH		 3271
3272 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3273 {
88845958 3274 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
07d6d2b8
AM		 3275 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3276 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3277 {
4eca0228 3278 _bfd_error_handler
38f14ab8 3279 (_("%pB: instruction set mismatch with previous modules"), ibfd);
252b5132
RH		 3280
3281 bfd_set_error (bfd_error_bad_value);
b34976b6 3282 return FALSE;
252b5132
RH		 3283 }
3284 }
3285
b34976b6 3286 return TRUE;
252b5132
RH		 3287}
3288
47b0e7ad
NC		 3289/* Display the flags field. */
3290
b34976b6 3291static bfd_boolean
47b0e7ad 3292m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH		 3293{
3294 FILE * file = (FILE *) ptr;
c3668558 3295
f12123c0 3296 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3297
252b5132 3298 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3299
252b5132 3300 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3301
252b5132
RH		 3302 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3303 {
3304 default:
3305 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3306 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3307 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3308 }
c3668558 3309
252b5132 3310 fputc ('\n', file);
c3668558 3311
b34976b6 3312 return TRUE;
252b5132
RH		 3313}
3314
47b0e7ad
NC		 3315static asection *
3316m32r_elf_gc_mark_hook (asection *sec,
07adf181 3317 struct bfd_link_info *info,
47b0e7ad
NC		 3318 Elf_Internal_Rela *rel,
3319 struct elf_link_hash_entry *h,
3320 Elf_Internal_Sym *sym)
252b5132
RH		 3321{
3322 if (h != NULL)
07adf181 3323 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH		 3324 {
3325 case R_M32R_GNU_VTINHERIT:
3326 case R_M32R_GNU_VTENTRY:
6edf0760
NC		 3327 case R_M32R_RELA_GNU_VTINHERIT:
3328 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM		 3329 return NULL;
3330 }
1e2f5b6e 3331
07adf181 3332 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH		 3333}
3334
252b5132
RH		 3335/* Look through the relocs for a section during the first phase.
3336 Since we don't do .gots or .plts, we just need to consider the
3337 virtual table relocs for gc. */
c3668558 3338
b34976b6 3339static bfd_boolean
47b0e7ad
NC		 3340m32r_elf_check_relocs (bfd *abfd,
3341 struct bfd_link_info *info,
3342 asection *sec,
3343 const Elf_Internal_Rela *relocs)
252b5132
RH		 3344{
3345 Elf_Internal_Shdr *symtab_hdr;
5582a088 3346 struct elf_link_hash_entry **sym_hashes;
252b5132
RH		 3347 const Elf_Internal_Rela *rel;
3348 const Elf_Internal_Rela *rel_end;
f1dfbfdb 3349 struct elf_link_hash_table *htab;
6edf0760 3350 bfd *dynobj;
c7e2358a 3351 asection *sreloc;
c3668558 3352
0e1862bb 3353 if (bfd_link_relocatable (info))
b34976b6 3354 return TRUE;
c3668558 3355
c7e2358a 3356 sreloc = NULL;
252b5132
RH		 3357 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3358 sym_hashes = elf_sym_hashes (abfd);
c3668558 3359
6edf0760 3360 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3361 if (htab == NULL)
3362 return FALSE;
3363
f1dfbfdb 3364 dynobj = htab->dynobj;
6edf0760 3365
252b5132
RH		 3366 rel_end = relocs + sec->reloc_count;
3367 for (rel = relocs; rel < rel_end; rel++)
3368 {
6edf0760 3369 int r_type;
252b5132
RH		 3370 struct elf_link_hash_entry *h;
3371 unsigned long r_symndx;
c3668558 3372
252b5132 3373 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3374 r_type = ELF32_R_TYPE (rel->r_info);
252b5132 3375 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8 3376 h = NULL;
252b5132 3377 else
973a3492
L		 3378 {
3379 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3380 while (h->root.type == bfd_link_hash_indirect
3381 || h->root.type == bfd_link_hash_warning)
3382 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3383 }
c3668558 3384
6edf0760 3385 /* Some relocs require a global offset table. */
f1dfbfdb 3386 if (htab->sgot == NULL)
07d6d2b8
AM		 3387 {
3388 switch (r_type)
3389 {
3390 case R_M32R_GOT16_HI_ULO:
3391 case R_M32R_GOT16_HI_SLO:
3392 case R_M32R_GOTOFF:
3393 case R_M32R_GOTOFF_HI_ULO:
3394 case R_M32R_GOTOFF_HI_SLO:
3395 case R_M32R_GOTOFF_LO:
3396 case R_M32R_GOT16_LO:
3397 case R_M32R_GOTPC24:
3398 case R_M32R_GOTPC_HI_ULO:
3399 case R_M32R_GOTPC_HI_SLO:
3400 case R_M32R_GOTPC_LO:
3401 case R_M32R_GOT24:
3402 if (dynobj == NULL)
f1dfbfdb 3403 htab->dynobj = dynobj = abfd;
07d6d2b8
AM		 3404 if (!_bfd_elf_create_got_section (dynobj, info))
3405 return FALSE;
3406 break;
3407
3408 default:
3409 break;
3410 }
3411 }
6edf0760
NC		 3412
3413 switch (r_type)
07d6d2b8 3414 {
6edf0760
NC		 3415 case R_M32R_GOT16_HI_ULO:
3416 case R_M32R_GOT16_HI_SLO:
41978308 3417 case R_M32R_GOT16_LO:
07d6d2b8
AM		 3418 case R_M32R_GOT24:
3419
3420 if (h != NULL)
3421 h->got.refcount += 1;
3422 else
3423 {
3424 bfd_signed_vma *local_got_refcounts;
3425
3426 /* This is a global offset table entry for a local
3427 symbol. */
3428 local_got_refcounts = elf_local_got_refcounts (abfd);
3429 if (local_got_refcounts == NULL)
3430 {
3431 bfd_size_type size;
3432
3433 size = symtab_hdr->sh_info;
3434 size *= sizeof (bfd_signed_vma);
3435 local_got_refcounts = bfd_zalloc (abfd, size);
3436 if (local_got_refcounts == NULL)
3437 return FALSE;
3438 elf_local_got_refcounts (abfd) = local_got_refcounts;
3439 }
3440 local_got_refcounts[r_symndx] += 1;
3441 }
3442 break;
3443
3444 case R_M32R_26_PLTREL:
3445 /* This symbol requires a procedure linkage table entry. We
3446 actually build the entry in adjust_dynamic_symbol,
3447 because this might be a case of linking PIC code without
3448 linking in any dynamic objects, in which case we don't
3449 need to generate a procedure linkage table after all. */
41978308 3450
6edf0760
NC		 3451 /* If this is a local symbol, we resolve it directly without
3452 creating a procedure linkage table entry. */
07d6d2b8
AM		 3453 if (h == NULL)
3454 continue;
6edf0760 3455
07d6d2b8
AM		 3456 if (h->forced_local)
3457 break;
6edf0760 3458
07d6d2b8 3459 h->needs_plt = 1;
6edf0760 3460 h->plt.refcount += 1;
07d6d2b8
AM		 3461 break;
3462
3463 case R_M32R_16_RELA:
3464 case R_M32R_24_RELA:
3465 case R_M32R_32_RELA:
3466 case R_M32R_REL32:
3467 case R_M32R_HI16_ULO_RELA:
3468 case R_M32R_HI16_SLO_RELA:
3469 case R_M32R_LO16_RELA:
3470 case R_M32R_SDA16_RELA:
8ce757c4 3471 case R_M32R_10_PCREL_RELA:
07d6d2b8
AM		 3472 case R_M32R_18_PCREL_RELA:
3473 case R_M32R_26_PCREL_RELA:
3474
3475 if (h != NULL && !bfd_link_pic (info))
3476 {
3477 h->non_got_ref = 1;
3478 h->plt.refcount += 1;
3479 }
3480
3481 /* If we are creating a shared library, and this is a reloc
3482 against a global symbol, or a non PC relative reloc
3483 against a local symbol, then we need to copy the reloc
3484 into the shared library. However, if we are linking with
3485 -Bsymbolic, we do not need to copy a reloc against a
3486 global symbol which is defined in an object we are
3487 including in the link (i.e., DEF_REGULAR is set). At
3488 this point we have not seen all the input files, so it is
3489 possible that DEF_REGULAR is not set now but will be set
3490 later (it is never cleared). We account for that
3491 possibility below by storing information in the
3492 dyn_relocs field of the hash table entry. A similar
3493 situation occurs when creating shared libraries and symbol
3494 visibility changes render the symbol local.
3495
3496 If on the other hand, we are creating an executable, we
3497 may need to keep relocations for symbols satisfied by a
3498 dynamic library if we manage to avoid copy relocs for the
3499 symbol. */
3500 if ((bfd_link_pic (info)
3501 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3502 && (( r_type != R_M32R_26_PCREL_RELA
07d6d2b8
AM		 3503 && r_type != R_M32R_18_PCREL_RELA
3504 && r_type != R_M32R_10_PCREL_RELA
3505 && r_type != R_M32R_REL32)
3506 || (h != NULL
6edf0760 3507 && (! info->symbolic
07d6d2b8
AM		 3508 || h->root.type == bfd_link_hash_defweak
3509 || !h->def_regular))))
3510 || (!bfd_link_pic (info)
3511 && (sec->flags & SEC_ALLOC) != 0
3512 && h != NULL
3513 && (h->root.type == bfd_link_hash_defweak
3514 || !h->def_regular)))
3515 {
3516 struct elf_dyn_relocs *p;
3517 struct elf_dyn_relocs **head;
3518
3519 if (dynobj == NULL)
f1dfbfdb 3520 htab->dynobj = dynobj = abfd;
07d6d2b8
AM		 3521
3522 /* When creating a shared object, we must copy these
3523 relocs into the output file. We create a reloc
3524 section in dynobj and make room for the reloc. */
3525 if (sreloc == NULL)
3526 {
83bac4b0
NC		 3527 sreloc = _bfd_elf_make_dynamic_reloc_section
3528 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
41978308 3529
83bac4b0
NC		 3530 if (sreloc == NULL)
3531 return FALSE;
07d6d2b8
AM		 3532 }
3533
3534 /* If this is a global symbol, we count the number of
3535 relocations we need for this symbol. */
3536 if (h != NULL)
190eb1dd 3537 head = &h->dyn_relocs;
07d6d2b8
AM		 3538 else
3539 {
3540 /* Track dynamic relocs needed for local syms too. */
3541 asection *s;
3542 void *vpp;
87d72d41 3543 Elf_Internal_Sym *isym;
6edf0760 3544
87d72d41
AM		 3545 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3546 abfd, r_symndx);
3547 if (isym == NULL)
3548 return FALSE;
3549
3550 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3551 if (s == NULL)
3552 s = sec;
6edf0760 3553
6edfbbad 3554 vpp = &elf_section_data (s)->local_dynrel;
07d6d2b8
AM		 3555 head = (struct elf_dyn_relocs **) vpp;
3556 }
3557
3558 p = *head;
3559 if (p == NULL || p->sec != sec)
3560 {
986f0783 3561 size_t amt = sizeof (*p);
07d6d2b8
AM		 3562
3563 p = bfd_alloc (dynobj, amt);
3564 if (p == NULL)
3565 return FALSE;
3566 p->next = *head;
3567 *head = p;
3568 p->sec = sec;
3569 p->count = 0;
3570 p->pc_count = 0;
3571 }
3572
3573 p->count += 1;
3574 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3575 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
8ce757c4
NC		 3576 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3577 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
07d6d2b8
AM		 3578 p->pc_count += 1;
3579 }
3580 break;
3581
3582 /* This relocation describes the C++ object vtable hierarchy.
3583 Reconstruct it for later use during GC. */
3584 case R_M32R_RELA_GNU_VTINHERIT:
3585 case R_M32R_GNU_VTINHERIT:
3586 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3587 return FALSE;
3588 break;
3589
3590 /* This relocation describes which C++ vtable entries are actually
3591 used. Record for later use during GC. */
3592 case R_M32R_GNU_VTENTRY:
a0ea3a14 3593 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
07d6d2b8
AM		 3594 return FALSE;
3595 break;
3596 case R_M32R_RELA_GNU_VTENTRY:
a0ea3a14 3597 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
07d6d2b8
AM		 3598 return FALSE;
3599 break;
3600 }
252b5132 3601 }
c3668558 3602
b34976b6 3603 return TRUE;
252b5132 3604}
2f89ff8d 3605
b35d266b 3606static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 3607{
07d6d2b8 3608 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
0112cd26 3609 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
07d6d2b8 3610 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 3611};
3612
bf577467
AM		 3613static bfd_boolean
3614m32r_elf_section_flags (const Elf_Internal_Shdr *hdr)
3615{
3616 const char *name = hdr->bfd_section->name;
3617
3618 if (strncmp (name, ".sbss", 5) == 0
3619 || strncmp (name, ".sdata", 6) == 0)
3620 hdr->bfd_section->flags |= SEC_SMALL_DATA;
3621
3622 return TRUE;
3623}
3624
6edf0760 3625static enum elf_reloc_type_class
7e612e98
AM		 3626m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3627 const asection *rel_sec ATTRIBUTE_UNUSED,
3628 const Elf_Internal_Rela *rela)
6edf0760
NC		 3629{
3630 switch ((int) ELF32_R_TYPE (rela->r_info))
3631 {
47b0e7ad
NC		 3632 case R_M32R_RELATIVE: return reloc_class_relative;
3633 case R_M32R_JMP_SLOT: return reloc_class_plt;
3634 case R_M32R_COPY: return reloc_class_copy;
07d6d2b8 3635 default: return reloc_class_normal;
6edf0760
NC		 3636 }
3637}
252b5132 3638\f
252b5132 3639#define ELF_ARCH bfd_arch_m32r
ae95ffa6 3640#define ELF_TARGET_ID M32R_ELF_DATA
aa4f99bb
AO		 3641#define ELF_MACHINE_CODE EM_M32R
3642#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 3643#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132 3644
07d6d2b8 3645#define TARGET_BIG_SYM m32r_elf32_vec
252b5132 3646#define TARGET_BIG_NAME "elf32-m32r"
07d6d2b8
AM		 3647#define TARGET_LITTLE_SYM m32r_elf32_le_vec
3648#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 3649
6edf0760 3650#define elf_info_to_howto m32r_info_to_howto
252b5132
RH		 3651#define elf_info_to_howto_rel m32r_info_to_howto_rel
3652#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
3653#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
3654#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
3655#define elf_backend_relocate_section m32r_elf_relocate_section
07d6d2b8
AM		 3656#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
3657#define elf_backend_check_relocs m32r_elf_check_relocs
252b5132 3658
07d6d2b8
AM		 3659#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
3660#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
3661#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
d00dd7dc 3662#define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
07d6d2b8
AM		 3663#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
3664#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
3665#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
3666#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
6edf0760 3667
07d6d2b8 3668#define elf_backend_can_gc_sections 1
6edf0760 3669/*#if !USE_REL
b491616a 3670#define elf_backend_rela_normal 1
6edf0760
NC		 3671#endif*/
3672#define elf_backend_can_refcount 1
3673#define elf_backend_want_got_plt 1
3674#define elf_backend_plt_readonly 1
3675#define elf_backend_want_plt_sym 0
3676#define elf_backend_got_header_size 12
64f52338 3677#define elf_backend_dtrel_excludes_plt 1
6edf0760 3678
07d6d2b8 3679#define elf_backend_may_use_rel_p 1
6edf0760 3680#ifdef USE_M32R_OLD_RELOC
07d6d2b8
AM		 3681#define elf_backend_default_use_rela_p 0
3682#define elf_backend_may_use_rela_p 0
6edf0760 3683#else
07d6d2b8
AM		 3684#define elf_backend_default_use_rela_p 1
3685#define elf_backend_may_use_rela_p 1
b491616a 3686#endif
6edf0760 3687
252b5132 3688#define elf_backend_object_p m32r_elf_object_p
07d6d2b8
AM		 3689#define elf_backend_final_write_processing m32r_elf_final_write_processing
3690#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
252b5132
RH		 3691#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
3692#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 3693#define elf_backend_special_sections m32r_elf_special_sections
bf577467 3694#define elf_backend_section_flags m32r_elf_section_flags
c3668558 3695
a2f63b2e
MR		 3696#define elf_backend_linux_prpsinfo32_ugid16 TRUE
3697
252b5132 3698#include "elf32-target.h"
6edf0760 3699
07d6d2b8
AM		 3700#undef ELF_MAXPAGESIZE
3701#define ELF_MAXPAGESIZE 0x1000
3702
3703#undef TARGET_BIG_SYM
3704#define TARGET_BIG_SYM m32r_elf32_linux_vec
3705#undef TARGET_BIG_NAME
3706#define TARGET_BIG_NAME "elf32-m32r-linux"
3707#undef TARGET_LITTLE_SYM
3708#define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
3709#undef TARGET_LITTLE_NAME
3710#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
3711#undef elf32_bed
3712#define elf32_bed elf32_m32r_lin_bed
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NC		 3713
3714#include "elf32-target.h"
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