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[deliverable/binutils-gdb.git] / bfd / elf32-m32r.c
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252b5132 1/* M32R-specific support for 32-bit ELF.
b3adc24a 2 Copyright (C) 1996-2020 Free Software Foundation, Inc.
252b5132 3
88845958 4 This file is part of BFD, the Binary File Descriptor library.
252b5132 5
88845958
NC		 6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
88845958 9 (at your option) any later version.
252b5132 10
88845958
NC		 11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
252b5132 15
88845958
NC		 16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
252b5132 20
252b5132 21#include "sysdep.h"
3db64b00 22#include "bfd.h"
252b5132
RH		 23#include "libbfd.h"
24#include "elf-bfd.h"
25#include "elf/m32r.h"
26
252b5132
RH		 27#define NOP_INSN 0x7000
28#define MAKE_PARALLEL(insn) ((insn) | 0x8000)
29
30/* Use REL instead of RELA to save space.
31 This only saves space in libraries and object files, but perhaps
32 relocs will be put in ROM? All in all though, REL relocs are a pain
33 to work with. */
6edf0760 34/* #define USE_REL 1
acf8aed4
AM		 35
36#ifndef USE_REL
37#define USE_REL 0
6edf0760 38#endif */
47b0e7ad 39/* Use RELA. But use REL to link old objects for backwords compatibility. */
6edf0760
NC		 40
41/* Functions for the M32R ELF linker. */
41978308 42
6edf0760
NC		 43/* The name of the dynamic interpreter. This is put in the .interp
44 section. */
41978308 45
6edf0760 46#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
41978308 47
6edf0760 48/* The nop opcode we use. */
41978308 49
6edf0760 50#define M32R_NOP 0x7000f000
41978308 51
6edf0760 52#define PLT_EMPTY 0x10101010 /* RIE -> RIE */
41978308 53
6edf0760
NC		 54/* The size in bytes of an entry in the procedure linkage table. */
55
56#define PLT_ENTRY_SIZE 20
57#define PLT_HEADER_SIZE 20
41978308 58
6edf0760
NC		 59/* The first one entries in a procedure linkage table are reserved,
60 and the initial contents are unimportant (we zero them out).
61 Subsequent entries look like this. */
41978308 62
07d6d2b8
AM		 63#define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
64#define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
65#define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
66#define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
67#define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
68
69#define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
70#define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
71#define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
72#define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
73#define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
74
75#define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
76#define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
77#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
78#define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
79#define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
80#define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
81#define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
6edf0760 82
252b5132 83
47b0e7ad 84/* Utility to actually perform an R_M32R_10_PCREL reloc. */
252b5132 85
47b0e7ad
NC		 86static bfd_reloc_status_type
87m32r_elf_do_10_pcrel_reloc (bfd *abfd,
88 reloc_howto_type *howto,
89 asection *input_section,
90 bfd_byte *data,
91 bfd_vma offset,
92 asection *symbol_section ATTRIBUTE_UNUSED,
93 bfd_vma symbol_value,
94 bfd_vma addend)
95{
96 bfd_signed_vma relocation;
97 unsigned long x;
98 bfd_reloc_status_type status;
252b5132 99
47b0e7ad
NC		 100 /* Sanity check the address (offset in section). */
101 if (offset > bfd_get_section_limit (abfd, input_section))
102 return bfd_reloc_outofrange;
252b5132 103
47b0e7ad
NC		 104 relocation = symbol_value + addend;
105 /* Make it pc relative. */
106 relocation -= (input_section->output_section->vma
107 + input_section->output_offset);
108 /* These jumps mask off the lower two bits of the current address
109 before doing pcrel calculations. */
110 relocation -= (offset & -(bfd_vma) 4);
252b5132 111
47b0e7ad
NC		 112 if (relocation < -0x200 || relocation > 0x1ff)
113 status = bfd_reloc_overflow;
114 else
115 status = bfd_reloc_ok;
252b5132 116
47b0e7ad
NC		 117 x = bfd_get_16 (abfd, data + offset);
118 relocation >>= howto->rightshift;
119 relocation <<= howto->bitpos;
120 x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
121 bfd_put_16 (abfd, (bfd_vma) x, data + offset);
252b5132 122
47b0e7ad
NC		 123 return status;
124}
252b5132 125
47b0e7ad 126/* Handle the R_M32R_10_PCREL reloc. */
252b5132 127
47b0e7ad
NC		 128static bfd_reloc_status_type
129m32r_elf_10_pcrel_reloc (bfd * abfd,
130 arelent * reloc_entry,
131 asymbol * symbol,
132 void * data,
133 asection * input_section,
134 bfd * output_bfd,
135 char ** error_message ATTRIBUTE_UNUSED)
136{
137 /* This part is from bfd_elf_generic_reloc. */
138 if (output_bfd != NULL
139 && (symbol->flags & BSF_SECTION_SYM) == 0
140 && (! reloc_entry->howto->partial_inplace
141 || reloc_entry->addend == 0))
142 {
143 reloc_entry->address += input_section->output_offset;
144 return bfd_reloc_ok;
145 }
252b5132 146
47b0e7ad
NC		 147 if (output_bfd != NULL)
148 /* FIXME: See bfd_perform_relocation. Is this right? */
149 return bfd_reloc_continue;
252b5132 150
47b0e7ad
NC		 151 return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
152 input_section,
153 data, reloc_entry->address,
154 symbol->section,
155 (symbol->value
156 + symbol->section->output_section->vma
157 + symbol->section->output_offset),
158 reloc_entry->addend);
159}
252b5132 160
47b0e7ad
NC		 161/* Do generic partial_inplace relocation.
162 This is a local replacement for bfd_elf_generic_reloc. */
252b5132 163
47b0e7ad
NC		 164static bfd_reloc_status_type
165m32r_elf_generic_reloc (bfd *input_bfd,
166 arelent *reloc_entry,
167 asymbol *symbol,
168 void * data,
169 asection *input_section,
170 bfd *output_bfd,
171 char **error_message ATTRIBUTE_UNUSED)
172{
173 bfd_reloc_status_type ret;
174 bfd_vma relocation;
175 bfd_byte *inplace_address;
252b5132 176
47b0e7ad
NC		 177 /* This part is from bfd_elf_generic_reloc.
178 If we're relocating, and this an external symbol, we don't want
179 to change anything. */
180 if (output_bfd != NULL
181 && (symbol->flags & BSF_SECTION_SYM) == 0
182 && reloc_entry->addend == 0)
183 {
184 reloc_entry->address += input_section->output_offset;
185 return bfd_reloc_ok;
186 }
6edf0760 187
47b0e7ad
NC		 188 /* Now do the reloc in the usual way.
189 ??? It would be nice to call bfd_elf_generic_reloc here,
190 but we have partial_inplace set. bfd_elf_generic_reloc will
191 pass the handling back to bfd_install_relocation which will install
192 a section relative addend which is wrong. */
6edf0760 193
47b0e7ad
NC		 194 /* Sanity check the address (offset in section). */
195 if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
196 return bfd_reloc_outofrange;
6edf0760 197
47b0e7ad
NC		 198 ret = bfd_reloc_ok;
199 if (bfd_is_und_section (symbol->section)
200 && output_bfd == NULL)
201 ret = bfd_reloc_undefined;
6edf0760 202
47b0e7ad
NC		 203 if (bfd_is_com_section (symbol->section)
204 || output_bfd != NULL)
205 relocation = 0;
206 else
207 relocation = symbol->value;
6edf0760 208
47b0e7ad
NC		 209 /* Only do this for a final link. */
210 if (output_bfd == NULL)
211 {
212 relocation += symbol->section->output_section->vma;
213 relocation += symbol->section->output_offset;
214 }
6edf0760 215
47b0e7ad
NC		 216 relocation += reloc_entry->addend;
217 inplace_address = (bfd_byte *) data + reloc_entry->address;
6edf0760 218
07d6d2b8
AM		 219#define DOIT(x) \
220 x = ( (x & ~reloc_entry->howto->dst_mask) | \
47b0e7ad
NC		 221 (((x & reloc_entry->howto->src_mask) + relocation) & \
222 reloc_entry->howto->dst_mask))
6edf0760 223
47b0e7ad
NC		 224 switch (reloc_entry->howto->size)
225 {
226 case 1:
227 {
228 short x = bfd_get_16 (input_bfd, inplace_address);
229 DOIT (x);
07d6d2b8 230 bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
47b0e7ad
NC		 231 }
232 break;
233 case 2:
234 {
235 unsigned long x = bfd_get_32 (input_bfd, inplace_address);
236 DOIT (x);
07d6d2b8 237 bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
47b0e7ad
NC		 238 }
239 break;
240 default:
241 BFD_ASSERT (0);
242 }
6edf0760 243
47b0e7ad
NC		 244 if (output_bfd != NULL)
245 reloc_entry->address += input_section->output_offset;
6edf0760 246
47b0e7ad
NC		 247 return ret;
248}
6edf0760 249
47b0e7ad
NC		 250/* Handle the R_M32R_SDA16 reloc.
251 This reloc is used to compute the address of objects in the small data area
252 and to perform loads and stores from that area.
253 The lower 16 bits are sign extended and added to the register specified
254 in the instruction, which is assumed to point to _SDA_BASE_. */
6edf0760 255
47b0e7ad
NC		 256static bfd_reloc_status_type
257m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
258 arelent *reloc_entry,
259 asymbol *symbol,
260 void * data ATTRIBUTE_UNUSED,
261 asection *input_section,
262 bfd *output_bfd,
263 char **error_message ATTRIBUTE_UNUSED)
264{
265 /* This part is from bfd_elf_generic_reloc. */
266 if (output_bfd != NULL
267 && (symbol->flags & BSF_SECTION_SYM) == 0
268 && (! reloc_entry->howto->partial_inplace
269 || reloc_entry->addend == 0))
270 {
271 reloc_entry->address += input_section->output_offset;
272 return bfd_reloc_ok;
273 }
6edf0760 274
47b0e7ad
NC		 275 if (output_bfd != NULL)
276 /* FIXME: See bfd_perform_relocation. Is this right? */
277 return bfd_reloc_continue;
6edf0760 278
47b0e7ad
NC		 279 /* FIXME: not sure what to do here yet. But then again, the linker
280 may never call us. */
281 abort ();
282}
6edf0760 283
47b0e7ad
NC		 284\f
285/* Handle the R_M32R_HI16_[SU]LO relocs.
286 HI16_SLO is for the add3 and load/store with displacement instructions.
287 HI16_ULO is for the or3 instruction.
288 For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
289 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
290 we must add one to the high 16 bytes (which will get subtracted off when
291 the low 16 bits are added).
292 These relocs have to be done in combination with an R_M32R_LO16 reloc
293 because there is a carry from the LO16 to the HI16. Here we just save
294 the information we need; we do the actual relocation when we see the LO16.
295 This code is copied from the elf32-mips.c. We also support an arbitrary
296 number of HI16 relocs to be associated with a single LO16 reloc. The
297 assembler sorts the relocs to ensure each HI16 immediately precedes its
298 LO16. However if there are multiple copies, the assembler may not find
299 the real LO16 so it picks the first one it finds. */
6edf0760 300
47b0e7ad
NC		 301struct m32r_hi16
302{
303 struct m32r_hi16 *next;
304 bfd_byte *addr;
305 bfd_vma addend;
306};
307
308/* FIXME: This should not be a static variable. */
309
310static struct m32r_hi16 *m32r_hi16_list;
311
312static bfd_reloc_status_type
313m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
314 arelent *reloc_entry,
315 asymbol *symbol,
316 void * data,
317 asection *input_section,
318 bfd *output_bfd,
319 char **error_message ATTRIBUTE_UNUSED)
320{
321 bfd_reloc_status_type ret;
322 bfd_vma relocation;
323 struct m32r_hi16 *n;
324
325 /* This part is from bfd_elf_generic_reloc.
326 If we're relocating, and this an external symbol, we don't want
327 to change anything. */
328 if (output_bfd != NULL
329 && (symbol->flags & BSF_SECTION_SYM) == 0
330 && reloc_entry->addend == 0)
331 {
332 reloc_entry->address += input_section->output_offset;
333 return bfd_reloc_ok;
334 }
335
336 /* Sanity check the address (offset in section). */
337 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
338 return bfd_reloc_outofrange;
339
340 ret = bfd_reloc_ok;
341 if (bfd_is_und_section (symbol->section)
342 && output_bfd == NULL)
343 ret = bfd_reloc_undefined;
344
345 if (bfd_is_com_section (symbol->section))
346 relocation = 0;
347 else
348 relocation = symbol->value;
349
350 relocation += symbol->section->output_section->vma;
351 relocation += symbol->section->output_offset;
352 relocation += reloc_entry->addend;
353
354 /* Save the information, and let LO16 do the actual relocation. */
355 n = bfd_malloc ((bfd_size_type) sizeof *n);
356 if (n == NULL)
357 return bfd_reloc_outofrange;
358 n->addr = (bfd_byte *) data + reloc_entry->address;
359 n->addend = relocation;
360 n->next = m32r_hi16_list;
361 m32r_hi16_list = n;
362
363 if (output_bfd != NULL)
364 reloc_entry->address += input_section->output_offset;
365
366 return ret;
367}
368
369/* Handle an M32R ELF HI16 reloc. */
370
371static void
372m32r_elf_relocate_hi16 (bfd *input_bfd,
373 int type,
374 Elf_Internal_Rela *relhi,
375 Elf_Internal_Rela *rello,
376 bfd_byte *contents,
377 bfd_vma addend)
378{
379 unsigned long insn;
380 bfd_vma addlo;
381
382 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
383
384 addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
385 if (type == R_M32R_HI16_SLO)
386 addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
387 else
388 addlo &= 0xffff;
389
390 addend += ((insn & 0xffff) << 16) + addlo;
391
392 /* Reaccount for sign extension of low part. */
393 if (type == R_M32R_HI16_SLO
394 && (addend & 0x8000) != 0)
395 addend += 0x10000;
396
397 bfd_put_32 (input_bfd,
398 (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
399 contents + relhi->r_offset);
400}
401
402/* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
403 inplace relocation; this function exists in order to do the
404 R_M32R_HI16_[SU]LO relocation described above. */
405
406static bfd_reloc_status_type
407m32r_elf_lo16_reloc (bfd *input_bfd,
408 arelent *reloc_entry,
409 asymbol *symbol,
410 void * data,
411 asection *input_section,
412 bfd *output_bfd,
413 char **error_message)
414{
415 /* This part is from bfd_elf_generic_reloc.
416 If we're relocating, and this an external symbol, we don't want
417 to change anything. */
418 if (output_bfd != NULL
419 && (symbol->flags & BSF_SECTION_SYM) == 0
420 && reloc_entry->addend == 0)
421 {
422 reloc_entry->address += input_section->output_offset;
423 return bfd_reloc_ok;
424 }
425
426 if (m32r_hi16_list != NULL)
427 {
428 struct m32r_hi16 *l;
429
430 l = m32r_hi16_list;
431 while (l != NULL)
432 {
433 unsigned long insn;
434 unsigned long val;
435 unsigned long vallo;
436 struct m32r_hi16 *next;
437
438 /* Do the HI16 relocation. Note that we actually don't need
439 to know anything about the LO16 itself, except where to
440 find the low 16 bits of the addend needed by the LO16. */
441 insn = bfd_get_32 (input_bfd, l->addr);
442 vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
443 & 0xffff) ^ 0x8000) - 0x8000;
444 val = ((insn & 0xffff) << 16) + vallo;
445 val += l->addend;
446
447 /* Reaccount for sign extension of low part. */
448 if ((val & 0x8000) != 0)
449 val += 0x10000;
450
451 insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
452 bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
453
454 next = l->next;
455 free (l);
456 l = next;
457 }
6edf0760 458
47b0e7ad
NC		 459 m32r_hi16_list = NULL;
460 }
461
462 /* Now do the LO16 reloc in the usual way.
463 ??? It would be nice to call bfd_elf_generic_reloc here,
464 but we have partial_inplace set. bfd_elf_generic_reloc will
465 pass the handling back to bfd_install_relocation which will install
466 a section relative addend which is wrong. */
467 return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
468 input_section, output_bfd, error_message);
469}
470
471\f
472static reloc_howto_type m32r_elf_howto_table[] =
473{
474 /* This reloc does nothing. */
475 HOWTO (R_M32R_NONE, /* type */
6edf0760 476 0, /* rightshift */
6346d5ca
AM		 477 3, /* size (0 = byte, 1 = short, 2 = long) */
478 0, /* bitsize */
6edf0760
NC		 479 FALSE, /* pc_relative */
480 0, /* bitpos */
6346d5ca 481 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 482 bfd_elf_generic_reloc, /* special_function */
483 "R_M32R_NONE", /* name */
6edf0760 484 FALSE, /* partial_inplace */
47b0e7ad
NC		 485 0, /* src_mask */
486 0, /* dst_mask */
6edf0760
NC		 487 FALSE), /* pcrel_offset */
488
47b0e7ad
NC		 489 /* A 16 bit absolute relocation. */
490 HOWTO (R_M32R_16, /* type */
6edf0760 491 0, /* rightshift */
47b0e7ad
NC		 492 1, /* size (0 = byte, 1 = short, 2 = long) */
493 16, /* bitsize */
6edf0760
NC		 494 FALSE, /* pc_relative */
495 0, /* bitpos */
496 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC		 497 m32r_elf_generic_reloc,/* special_function */
498 "R_M32R_16", /* name */
499 TRUE, /* partial_inplace */
500 0xffff, /* src_mask */
501 0xffff, /* dst_mask */
6edf0760
NC		 502 FALSE), /* pcrel_offset */
503
47b0e7ad
NC		 504 /* A 32 bit absolute relocation. */
505 HOWTO (R_M32R_32, /* type */
6edf0760
NC		 506 0, /* rightshift */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
508 32, /* bitsize */
509 FALSE, /* pc_relative */
510 0, /* bitpos */
511 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC		 512 m32r_elf_generic_reloc,/* special_function */
513 "R_M32R_32", /* name */
514 TRUE, /* partial_inplace */
6edf0760
NC		 515 0xffffffff, /* src_mask */
516 0xffffffff, /* dst_mask */
517 FALSE), /* pcrel_offset */
518
47b0e7ad
NC		 519 /* A 24 bit address. */
520 HOWTO (R_M32R_24, /* type */
6edf0760
NC		 521 0, /* rightshift */
522 2, /* size (0 = byte, 1 = short, 2 = long) */
097f809a 523 24, /* bitsize */
6edf0760
NC		 524 FALSE, /* pc_relative */
525 0, /* bitpos */
47b0e7ad
NC		 526 complain_overflow_unsigned, /* complain_on_overflow */
527 m32r_elf_generic_reloc,/* special_function */
528 "R_M32R_24", /* name */
529 TRUE, /* partial_inplace */
097f809a
NC		 530 0xffffff, /* src_mask */
531 0xffffff, /* dst_mask */
6edf0760
NC		 532 FALSE), /* pcrel_offset */
533
47b0e7ad
NC		 534 /* An PC Relative 10-bit relocation, shifted by 2.
535 This reloc is complicated because relocations are relative to pc & -4.
536 i.e. branches in the right insn slot use the address of the left insn
537 slot for pc. */
538 /* ??? It's not clear whether this should have partial_inplace set or not.
539 Branch relaxing in the assembler can store the addend in the insn,
540 and if bfd_install_relocation gets called the addend may get added
541 again. */
542 HOWTO (R_M32R_10_PCREL, /* type */
07d6d2b8
AM		 543 2, /* rightshift */
544 1, /* size (0 = byte, 1 = short, 2 = long) */
545 10, /* bitsize */
546 TRUE, /* pc_relative */
547 0, /* bitpos */
47b0e7ad
NC		 548 complain_overflow_signed, /* complain_on_overflow */
549 m32r_elf_10_pcrel_reloc, /* special_function */
550 "R_M32R_10_PCREL", /* name */
07d6d2b8
AM		 551 FALSE, /* partial_inplace */
552 0xff, /* src_mask */
553 0xff, /* dst_mask */
6edf0760
NC		 554 TRUE), /* pcrel_offset */
555
47b0e7ad
NC		 556 /* A relative 18 bit relocation, right shifted by 2. */
557 HOWTO (R_M32R_18_PCREL, /* type */
558 2, /* rightshift */
6edf0760
NC		 559 2, /* size (0 = byte, 1 = short, 2 = long) */
560 16, /* bitsize */
47b0e7ad 561 TRUE, /* pc_relative */
6edf0760 562 0, /* bitpos */
47b0e7ad 563 complain_overflow_signed, /* complain_on_overflow */
6edf0760 564 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 565 "R_M32R_18_PCREL", /* name */
6edf0760 566 FALSE, /* partial_inplace */
47b0e7ad
NC		 567 0xffff, /* src_mask */
568 0xffff, /* dst_mask */
569 TRUE), /* pcrel_offset */
6edf0760 570
47b0e7ad
NC		 571 /* A relative 26 bit relocation, right shifted by 2. */
572 /* ??? It's not clear whether this should have partial_inplace set or not.
573 Branch relaxing in the assembler can store the addend in the insn,
574 and if bfd_install_relocation gets called the addend may get added
575 again. */
576 HOWTO (R_M32R_26_PCREL, /* type */
577 2, /* rightshift */
6edf0760 578 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad
NC		 579 26, /* bitsize */
580 TRUE, /* pc_relative */
6edf0760 581 0, /* bitpos */
47b0e7ad 582 complain_overflow_signed, /* complain_on_overflow */
6edf0760 583 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 584 "R_M32R_26_PCREL", /* name */
6edf0760 585 FALSE, /* partial_inplace */
47b0e7ad
NC		 586 0xffffff, /* src_mask */
587 0xffffff, /* dst_mask */
588 TRUE), /* pcrel_offset */
6edf0760 589
47b0e7ad
NC		 590 /* High 16 bits of address when lower 16 is or'd in. */
591 HOWTO (R_M32R_HI16_ULO, /* type */
592 16, /* rightshift */
6edf0760
NC		 593 2, /* size (0 = byte, 1 = short, 2 = long) */
594 16, /* bitsize */
595 FALSE, /* pc_relative */
596 0, /* bitpos */
597 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 598 m32r_elf_hi16_reloc, /* special_function */
599 "R_M32R_HI16_ULO", /* name */
600 TRUE, /* partial_inplace */
6edf0760
NC		 601 0x0000ffff, /* src_mask */
602 0x0000ffff, /* dst_mask */
603 FALSE), /* pcrel_offset */
604
47b0e7ad
NC		 605 /* High 16 bits of address when lower 16 is added in. */
606 HOWTO (R_M32R_HI16_SLO, /* type */
6edf0760
NC		 607 16, /* rightshift */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
609 16, /* bitsize */
610 FALSE, /* pc_relative */
611 0, /* bitpos */
612 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 613 m32r_elf_hi16_reloc, /* special_function */
614 "R_M32R_HI16_SLO", /* name */
615 TRUE, /* partial_inplace */
6edf0760
NC		 616 0x0000ffff, /* src_mask */
617 0x0000ffff, /* dst_mask */
47b0e7ad 618 FALSE), /* pcrel_offset */
6edf0760 619
47b0e7ad
NC		 620 /* Lower 16 bits of address. */
621 HOWTO (R_M32R_LO16, /* type */
622 0, /* rightshift */
6edf0760
NC		 623 2, /* size (0 = byte, 1 = short, 2 = long) */
624 16, /* bitsize */
625 FALSE, /* pc_relative */
626 0, /* bitpos */
627 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 628 m32r_elf_lo16_reloc, /* special_function */
629 "R_M32R_LO16", /* name */
630 TRUE, /* partial_inplace */
6edf0760
NC		 631 0x0000ffff, /* src_mask */
632 0x0000ffff, /* dst_mask */
47b0e7ad 633 FALSE), /* pcrel_offset */
6edf0760 634
47b0e7ad
NC		 635 /* Small data area 16 bits offset. */
636 HOWTO (R_M32R_SDA16, /* type */
6edf0760
NC		 637 0, /* rightshift */
638 2, /* size (0 = byte, 1 = short, 2 = long) */
639 16, /* bitsize */
640 FALSE, /* pc_relative */
641 0, /* bitpos */
47b0e7ad
NC		 642 complain_overflow_signed, /* complain_on_overflow */
643 m32r_elf_sda16_reloc, /* special_function */
644 "R_M32R_SDA16", /* name */
645 TRUE, /* partial_inplace */ /* FIXME: correct? */
6edf0760
NC		 646 0x0000ffff, /* src_mask */
647 0x0000ffff, /* dst_mask */
47b0e7ad 648 FALSE), /* pcrel_offset */
097f809a 649
47b0e7ad
NC		 650 /* GNU extension to record C++ vtable hierarchy. */
651 HOWTO (R_M32R_GNU_VTINHERIT, /* type */
07d6d2b8
AM		 652 0, /* rightshift */
653 2, /* size (0 = byte, 1 = short, 2 = long) */
654 0, /* bitsize */
655 FALSE, /* pc_relative */
656 0, /* bitpos */
657 complain_overflow_dont, /* complain_on_overflow */
658 NULL, /* special_function */
659 "R_M32R_GNU_VTINHERIT", /* name */
660 FALSE, /* partial_inplace */
661 0, /* src_mask */
662 0, /* dst_mask */
663 FALSE), /* pcrel_offset */
47b0e7ad
NC		 664
665 /* GNU extension to record C++ vtable member usage. */
07d6d2b8
AM		 666 HOWTO (R_M32R_GNU_VTENTRY, /* type */
667 0, /* rightshift */
668 2, /* size (0 = byte, 1 = short, 2 = long) */
669 0, /* bitsize */
670 FALSE, /* pc_relative */
671 0, /* bitpos */
672 complain_overflow_dont, /* complain_on_overflow */
673 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
674 "R_M32R_GNU_VTENTRY", /* name */
675 FALSE, /* partial_inplace */
676 0, /* src_mask */
677 0, /* dst_mask */
678 FALSE), /* pcrel_offset */
47b0e7ad
NC		 679
680 EMPTY_HOWTO (13),
681 EMPTY_HOWTO (14),
682 EMPTY_HOWTO (15),
683 EMPTY_HOWTO (16),
684 EMPTY_HOWTO (17),
685 EMPTY_HOWTO (18),
686 EMPTY_HOWTO (19),
687 EMPTY_HOWTO (20),
688 EMPTY_HOWTO (21),
689 EMPTY_HOWTO (22),
690 EMPTY_HOWTO (23),
691 EMPTY_HOWTO (24),
692 EMPTY_HOWTO (25),
693 EMPTY_HOWTO (26),
694 EMPTY_HOWTO (27),
695 EMPTY_HOWTO (28),
696 EMPTY_HOWTO (29),
697 EMPTY_HOWTO (30),
698 EMPTY_HOWTO (31),
699 EMPTY_HOWTO (32),
700
701 /* A 16 bit absolute relocation. */
702 HOWTO (R_M32R_16_RELA, /* type */
703 0, /* rightshift */
704 1, /* size (0 = byte, 1 = short, 2 = long) */
097f809a
NC		 705 16, /* bitsize */
706 FALSE, /* pc_relative */
707 0, /* bitpos */
47b0e7ad 708 complain_overflow_bitfield, /* complain_on_overflow */
097f809a 709 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 710 "R_M32R_16_RELA", /* name */
097f809a 711 FALSE, /* partial_inplace */
47b0e7ad
NC		 712 0xffff, /* src_mask */
713 0xffff, /* dst_mask */
097f809a
NC		 714 FALSE), /* pcrel_offset */
715
47b0e7ad
NC		 716 /* A 32 bit absolute relocation. */
717 HOWTO (R_M32R_32_RELA, /* type */
718 0, /* rightshift */
097f809a 719 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 720 32, /* bitsize */
097f809a
NC		 721 FALSE, /* pc_relative */
722 0, /* bitpos */
47b0e7ad
NC		 723 complain_overflow_bitfield, /* complain_on_overflow */
724 bfd_elf_generic_reloc,/* special_function */
725 "R_M32R_32_RELA", /* name */
097f809a 726 FALSE, /* partial_inplace */
47b0e7ad
NC		 727 0xffffffff, /* src_mask */
728 0xffffffff, /* dst_mask */
097f809a
NC		 729 FALSE), /* pcrel_offset */
730
47b0e7ad
NC		 731 /* A 24 bit address. */
732 HOWTO (R_M32R_24_RELA, /* type */
097f809a
NC		 733 0, /* rightshift */
734 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 735 24, /* bitsize */
097f809a
NC		 736 FALSE, /* pc_relative */
737 0, /* bitpos */
47b0e7ad
NC		 738 complain_overflow_unsigned, /* complain_on_overflow */
739 bfd_elf_generic_reloc,/* special_function */
740 "R_M32R_24_RELA", /* name */
097f809a 741 FALSE, /* partial_inplace */
47b0e7ad
NC		 742 0xffffff, /* src_mask */
743 0xffffff, /* dst_mask */
097f809a 744 FALSE), /* pcrel_offset */
252b5132 745
47b0e7ad 746 HOWTO (R_M32R_10_PCREL_RELA, /* type */
07d6d2b8
AM		 747 2, /* rightshift */
748 1, /* size (0 = byte, 1 = short, 2 = long) */
749 10, /* bitsize */
750 TRUE, /* pc_relative */
751 0, /* bitpos */
47b0e7ad
NC		 752 complain_overflow_signed, /* complain_on_overflow */
753 m32r_elf_10_pcrel_reloc, /* special_function */
754 "R_M32R_10_PCREL_RELA",/* name */
07d6d2b8
AM		 755 FALSE, /* partial_inplace */
756 0xff, /* src_mask */
757 0xff, /* dst_mask */
47b0e7ad 758 TRUE), /* pcrel_offset */
252b5132 759
47b0e7ad
NC		 760 /* A relative 18 bit relocation, right shifted by 2. */
761 HOWTO (R_M32R_18_PCREL_RELA, /* type */
762 2, /* rightshift */
763 2, /* size (0 = byte, 1 = short, 2 = long) */
764 16, /* bitsize */
765 TRUE, /* pc_relative */
766 0, /* bitpos */
767 complain_overflow_signed, /* complain_on_overflow */
768 bfd_elf_generic_reloc, /* special_function */
769 "R_M32R_18_PCREL_RELA",/* name */
770 FALSE, /* partial_inplace */
771 0xffff, /* src_mask */
772 0xffff, /* dst_mask */
773 TRUE), /* pcrel_offset */
252b5132 774
47b0e7ad
NC		 775 /* A relative 26 bit relocation, right shifted by 2. */
776 HOWTO (R_M32R_26_PCREL_RELA, /* type */
777 2, /* rightshift */
778 2, /* size (0 = byte, 1 = short, 2 = long) */
779 26, /* bitsize */
780 TRUE, /* pc_relative */
781 0, /* bitpos */
782 complain_overflow_signed, /* complain_on_overflow */
783 bfd_elf_generic_reloc, /* special_function */
784 "R_M32R_26_PCREL_RELA",/* name */
785 FALSE, /* partial_inplace */
786 0xffffff, /* src_mask */
787 0xffffff, /* dst_mask */
788 TRUE), /* pcrel_offset */
4c72e23a 789
47b0e7ad
NC		 790 /* High 16 bits of address when lower 16 is or'd in. */
791 HOWTO (R_M32R_HI16_ULO_RELA, /* type */
792 16, /* rightshift */
793 2, /* size (0 = byte, 1 = short, 2 = long) */
794 16, /* bitsize */
795 FALSE, /* pc_relative */
796 0, /* bitpos */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_M32R_HI16_ULO_RELA",/* name */
800 FALSE, /* partial_inplace */
801 0x0000ffff, /* src_mask */
802 0x0000ffff, /* dst_mask */
803 FALSE), /* pcrel_offset */
252b5132 804
47b0e7ad
NC		 805 /* High 16 bits of address when lower 16 is added in. */
806 HOWTO (R_M32R_HI16_SLO_RELA, /* type */
807 16, /* rightshift */
808 2, /* size (0 = byte, 1 = short, 2 = long) */
809 16, /* bitsize */
810 FALSE, /* pc_relative */
811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
814 "R_M32R_HI16_SLO_RELA",/* name */
815 FALSE, /* partial_inplace */
816 0x0000ffff, /* src_mask */
817 0x0000ffff, /* dst_mask */
818 FALSE), /* pcrel_offset */
252b5132 819
47b0e7ad
NC		 820 /* Lower 16 bits of address. */
821 HOWTO (R_M32R_LO16_RELA, /* type */
822 0, /* rightshift */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
824 16, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_dont, /* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_M32R_LO16_RELA", /* name */
830 FALSE, /* partial_inplace */
831 0x0000ffff, /* src_mask */
832 0x0000ffff, /* dst_mask */
833 FALSE), /* pcrel_offset */
252b5132 834
47b0e7ad
NC		 835 /* Small data area 16 bits offset. */
836 HOWTO (R_M32R_SDA16_RELA, /* type */
837 0, /* rightshift */
838 2, /* size (0 = byte, 1 = short, 2 = long) */
839 16, /* bitsize */
840 FALSE, /* pc_relative */
841 0, /* bitpos */
842 complain_overflow_signed, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* special_function */
844 "R_M32R_SDA16_RELA", /* name */
845 TRUE, /* partial_inplace */ /* FIXME: correct? */
846 0x0000ffff, /* src_mask */
847 0x0000ffff, /* dst_mask */
848 FALSE), /* pcrel_offset */
252b5132 849
47b0e7ad
NC		 850 /* GNU extension to record C++ vtable hierarchy. */
851 HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
07d6d2b8
AM		 852 0, /* rightshift */
853 2, /* size (0 = byte, 1 = short, 2 = long) */
854 0, /* bitsize */
855 FALSE, /* pc_relative */
856 0, /* bitpos */
857 complain_overflow_dont, /* complain_on_overflow */
858 NULL, /* special_function */
859 "R_M32R_RELA_GNU_VTINHERIT", /* name */
860 FALSE, /* partial_inplace */
861 0, /* src_mask */
862 0, /* dst_mask */
863 FALSE), /* pcrel_offset */
252b5132 864
47b0e7ad
NC		 865 /* GNU extension to record C++ vtable member usage. */
866 HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
07d6d2b8
AM		 867 0, /* rightshift */
868 2, /* size (0 = byte, 1 = short, 2 = long) */
869 0, /* bitsize */
870 FALSE, /* pc_relative */
871 0, /* bitpos */
872 complain_overflow_dont, /* complain_on_overflow */
873 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
874 "R_M32R_RELA_GNU_VTENTRY", /* name */
875 FALSE, /* partial_inplace */
876 0, /* src_mask */
877 0, /* dst_mask */
878 FALSE), /* pcrel_offset */
252b5132 879
157e7bd1
NC		 880 /* A 32 bit PC relative relocation. */
881 HOWTO (R_M32R_REL32, /* type */
882 0, /* rightshift */
883 2, /* size (0 = byte, 1 = short, 2 = long) */
884 32, /* bitsize */
885 TRUE, /* pc_relative */
886 0, /* bitpos */
887 complain_overflow_bitfield, /* complain_on_overflow */
888 bfd_elf_generic_reloc,/* special_function */
889 "R_M32R_REL32", /* name */
890 FALSE, /* partial_inplace */
891 0xffffffff, /* src_mask */
892 0xffffffff, /* dst_mask */
893 TRUE), /* pcrel_offset */
894
47b0e7ad
NC		 895 EMPTY_HOWTO (46),
896 EMPTY_HOWTO (47),
252b5132 897
47b0e7ad
NC		 898 /* Like R_M32R_24, but referring to the GOT table entry for
899 the symbol. */
900 HOWTO (R_M32R_GOT24, /* type */
901 0, /* rightshift */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
903 24, /* bitsize */
904 FALSE, /* pc_relative */
905 0, /* bitpos */
906 complain_overflow_unsigned, /* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_M32R_GOT24", /* name */
909 FALSE, /* partial_inplace */
910 0xffffff, /* src_mask */
911 0xffffff, /* dst_mask */
912 FALSE), /* pcrel_offset */
8b125cde 913
47b0e7ad
NC		 914 /* Like R_M32R_PCREL, but referring to the procedure linkage table
915 entry for the symbol. */
916 HOWTO (R_M32R_26_PLTREL, /* type */
917 2, /* rightshift */
918 2, /* size (0 = byte, 1 = short, 2 = long) */
919 24, /* bitsize */
920 TRUE, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_signed, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_M32R_26_PLTREL", /* name */
925 FALSE, /* partial_inplace */
926 0xffffff, /* src_mask */
927 0xffffff, /* dst_mask */
928 TRUE), /* pcrel_offset */
8b125cde 929
47b0e7ad
NC		 930 /* This is used only by the dynamic linker. The symbol should exist
931 both in the object being run and in some shared library. The
932 dynamic linker copies the data addressed by the symbol from the
933 shared library into the object, because the object being
934 run has to have the data at some particular address. */
935 HOWTO (R_M32R_COPY, /* type */
936 0, /* rightshift */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
938 32, /* bitsize */
939 FALSE, /* pc_relative */
940 0, /* bitpos */
941 complain_overflow_bitfield, /* complain_on_overflow */
942 bfd_elf_generic_reloc, /* special_function */
943 "R_M32R_COPY", /* name */
944 FALSE, /* partial_inplace */
945 0xffffffff, /* src_mask */
946 0xffffffff, /* dst_mask */
947 FALSE), /* pcrel_offset */
8b125cde 948
47b0e7ad
NC		 949 /* Like R_M32R_24, but used when setting global offset table
950 entries. */
951 HOWTO (R_M32R_GLOB_DAT, /* type */
952 0, /* rightshift */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
954 32, /* bitsize */
955 FALSE, /* pc_relative */
956 0, /* bitpos */
957 complain_overflow_bitfield, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_M32R_GLOB_DAT", /* name */
960 FALSE, /* partial_inplace */
961 0xffffffff, /* src_mask */
962 0xffffffff, /* dst_mask */
963 FALSE), /* pcrel_offset */
8b125cde 964
47b0e7ad
NC		 965 /* Marks a procedure linkage table entry for a symbol. */
966 HOWTO (R_M32R_JMP_SLOT, /* type */
967 0, /* rightshift */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
969 32, /* bitsize */
970 FALSE, /* pc_relative */
971 0, /* bitpos */
972 complain_overflow_bitfield, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_M32R_JMP_SLOT", /* name */
975 FALSE, /* partial_inplace */
976 0xffffffff, /* src_mask */
977 0xffffffff, /* dst_mask */
978 FALSE), /* pcrel_offset */
4c72e23a 979
47b0e7ad
NC		 980 /* Used only by the dynamic linker. When the object is run, this
981 longword is set to the load address of the object, plus the
982 addend. */
983 HOWTO (R_M32R_RELATIVE, /* type */
984 0, /* rightshift */
985 2, /* size (0 = byte, 1 = short, 2 = long) */
986 32, /* bitsize */
987 FALSE, /* pc_relative */
988 0, /* bitpos */
989 complain_overflow_bitfield, /* complain_on_overflow */
990 bfd_elf_generic_reloc, /* special_function */
991 "R_M32R_RELATIVE", /* name */
992 FALSE, /* partial_inplace */
993 0xffffffff, /* src_mask */
994 0xffffffff, /* dst_mask */
995 FALSE), /* pcrel_offset */
4c72e23a 996
47b0e7ad
NC		 997 HOWTO (R_M32R_GOTOFF, /* type */
998 0, /* rightshift */
999 2, /* size (0 = byte, 1 = short, 2 = long) */
1000 24, /* bitsize */
1001 FALSE, /* pc_relative */
1002 0, /* bitpos */
1003 complain_overflow_bitfield, /* complain_on_overflow */
1004 bfd_elf_generic_reloc, /* special_function */
1005 "R_M32R_GOTOFF", /* name */
1006 FALSE, /* partial_inplace */
1007 0xffffff, /* src_mask */
1008 0xffffff, /* dst_mask */
1009 FALSE), /* pcrel_offset */
4c72e23a 1010
47b0e7ad
NC		 1011 /* An PC Relative 24-bit relocation used when setting PIC offset
1012 table register. */
1013 HOWTO (R_M32R_GOTPC24, /* type */
1014 0, /* rightshift */
1015 2, /* size (0 = byte, 1 = short, 2 = long) */
1016 24, /* bitsize */
1017 TRUE, /* pc_relative */
1018 0, /* bitpos */
1019 complain_overflow_unsigned, /* complain_on_overflow */
1020 bfd_elf_generic_reloc, /* special_function */
1021 "R_M32R_GOTPC24", /* name */
1022 FALSE, /* partial_inplace */
1023 0xffffff, /* src_mask */
1024 0xffffff, /* dst_mask */
1025 TRUE), /* pcrel_offset */
4c72e23a 1026
47b0e7ad
NC		 1027 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1028 the symbol. */
1029 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1030 16, /* rightshift */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1032 16, /* bitsize */
1033 FALSE, /* pc_relative */
1034 0, /* bitpos */
1035 complain_overflow_dont, /* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* special_function */
1037 "R_M32R_GOT16_HI_ULO", /* name */
1038 FALSE, /* partial_inplace */
1039 0x0000ffff, /* src_mask */
1040 0x0000ffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
4c72e23a 1042
47b0e7ad
NC		 1043 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1044 the symbol. */
1045 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1046 16, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 FALSE, /* pc_relative */
1050 0, /* bitpos */
1051 complain_overflow_dont, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_M32R_GOT16_HI_SLO", /* name */
1054 FALSE, /* partial_inplace */
1055 0x0000ffff, /* src_mask */
1056 0x0000ffff, /* dst_mask */
1057 FALSE), /* pcrel_offset */
8b125cde 1058
47b0e7ad
NC		 1059 /* Like R_M32R_LO16, but referring to the GOT table entry for
1060 the symbol. */
1061 HOWTO (R_M32R_GOT16_LO, /* type */
1062 0, /* rightshift */
1063 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 16, /* bitsize */
1065 FALSE, /* pc_relative */
1066 0, /* bitpos */
1067 complain_overflow_dont, /* complain_on_overflow */
1068 bfd_elf_generic_reloc, /* special_function */
1069 "R_M32R_GOT16_LO", /* name */
1070 FALSE, /* partial_inplace */
1071 0x0000ffff, /* src_mask */
1072 0x0000ffff, /* dst_mask */
1073 FALSE), /* pcrel_offset */
4c72e23a 1074
47b0e7ad
NC		 1075 /* An PC Relative relocation used when setting PIC offset table register.
1076 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1077 the symbol. */
1078 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1079 16, /* rightshift */
1080 2, /* size (0 = byte, 1 = short, 2 = long) */
1081 16, /* bitsize */
1082 FALSE, /* pc_relative */
1083 0, /* bitpos */
1084 complain_overflow_dont, /* complain_on_overflow */
1085 bfd_elf_generic_reloc, /* special_function */
1086 "R_M32R_GOTPC_HI_ULO", /* name */
1087 FALSE, /* partial_inplace */
1088 0x0000ffff, /* src_mask */
1089 0x0000ffff, /* dst_mask */
1090 TRUE), /* pcrel_offset */
4c72e23a 1091
47b0e7ad
NC		 1092 /* An PC Relative relocation used when setting PIC offset table register.
1093 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1094 the symbol. */
1095 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1096 16, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 bfd_elf_generic_reloc, /* special_function */
1103 "R_M32R_GOTPC_HI_SLO", /* name */
1104 FALSE, /* partial_inplace */
1105 0x0000ffff, /* src_mask */
1106 0x0000ffff, /* dst_mask */
1107 TRUE), /* pcrel_offset */
4c72e23a 1108
47b0e7ad
NC		 1109 /* An PC Relative relocation used when setting PIC offset table register.
1110 Like R_M32R_LO16, but referring to the GOT table entry for
1111 the symbol. */
1112 HOWTO (R_M32R_GOTPC_LO, /* type */
1113 0, /* rightshift */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1115 16, /* bitsize */
1116 FALSE, /* pc_relative */
1117 0, /* bitpos */
1118 complain_overflow_dont, /* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_M32R_GOTPC_LO", /* name */
1121 FALSE, /* partial_inplace */
1122 0x0000ffff, /* src_mask */
1123 0x0000ffff, /* dst_mask */
1124 TRUE), /* pcrel_offset */
252b5132 1125
47b0e7ad
NC		 1126 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1127 16, /* rightshift */
1128 2, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 bfd_elf_generic_reloc, /* special_function */
1134 "R_M32R_GOTOFF_HI_ULO",/* name */
1135 FALSE, /* partial_inplace */
1136 0x0000ffff, /* src_mask */
1137 0x0000ffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
252b5132 1139
47b0e7ad
NC		 1140 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1141 16, /* rightshift */
1142 2, /* size (0 = byte, 1 = short, 2 = long) */
1143 16, /* bitsize */
1144 FALSE, /* pc_relative */
1145 0, /* bitpos */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 bfd_elf_generic_reloc, /* special_function */
1148 "R_M32R_GOTOFF_HI_SLO",/* name */
1149 FALSE, /* partial_inplace */
1150 0x0000ffff, /* src_mask */
1151 0x0000ffff, /* dst_mask */
1152 FALSE), /* pcrel_offset */
252b5132 1153
47b0e7ad
NC		 1154 HOWTO (R_M32R_GOTOFF_LO, /* type */
1155 0, /* rightshift */
1156 2, /* size (0 = byte, 1 = short, 2 = long) */
1157 16, /* bitsize */
1158 FALSE, /* pc_relative */
1159 0, /* bitpos */
1160 complain_overflow_dont, /* complain_on_overflow */
1161 bfd_elf_generic_reloc, /* special_function */
1162 "R_M32R_GOTOFF_LO", /* name */
1163 FALSE, /* partial_inplace */
1164 0x0000ffff, /* src_mask */
1165 0x0000ffff, /* dst_mask */
1166 FALSE), /* pcrel_offset */
1167};
252b5132 1168
252b5132
RH		 1169/* Map BFD reloc types to M32R ELF reloc types. */
1170
1171struct m32r_reloc_map
1172{
1173 bfd_reloc_code_real_type bfd_reloc_val;
1174 unsigned char elf_reloc_val;
1175};
1176
d5b2f13b 1177#ifdef USE_M32R_OLD_RELOC
6edf0760 1178static const struct m32r_reloc_map m32r_reloc_map_old[] =
252b5132
RH		 1179{
1180 { BFD_RELOC_NONE, R_M32R_NONE },
1181 { BFD_RELOC_16, R_M32R_16 },
1182 { BFD_RELOC_32, R_M32R_32 },
1183 { BFD_RELOC_M32R_24, R_M32R_24 },
1184 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1185 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1186 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1187 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1188 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1189 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1190 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1191 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1192 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1193};
d5b2f13b 1194#else
6edf0760
NC		 1195static const struct m32r_reloc_map m32r_reloc_map[] =
1196{
1197 { BFD_RELOC_NONE, R_M32R_NONE },
1198 { BFD_RELOC_16, R_M32R_16_RELA },
1199 { BFD_RELOC_32, R_M32R_32_RELA },
1200 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1201 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1202 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1203 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1204 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1205 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1206 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1207 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1208 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1209 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
157e7bd1 1210 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
41978308 1211
6edf0760
NC		 1212 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1213 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1214 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1215 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1216 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1217 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1218 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1219 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1220 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1221 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1222 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1223 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1224 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1225 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
097f809a
NC		 1226 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1227 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1228 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
6edf0760 1229};
d5b2f13b 1230#endif
6edf0760 1231
252b5132 1232static reloc_howto_type *
47b0e7ad
NC		 1233bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1234 bfd_reloc_code_real_type code)
252b5132
RH		 1235{
1236 unsigned int i;
1237
6edf0760
NC		 1238#ifdef USE_M32R_OLD_RELOC
1239 for (i = 0;
1240 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1241 i++)
47b0e7ad
NC		 1242 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1243 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1244
6edf0760
NC		 1245#else /* ! USE_M32R_OLD_RELOC */
1246
252b5132
RH		 1247 for (i = 0;
1248 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1249 i++)
47b0e7ad
NC		 1250 if (m32r_reloc_map[i].bfd_reloc_val == code)
1251 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
6edf0760 1252#endif
252b5132
RH		 1253
1254 return NULL;
1255}
1256
157090f7
AM		 1257static reloc_howto_type *
1258bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1259 const char *r_name)
1260{
1261 unsigned int i;
1262
1263 for (i = 0;
1264 i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1265 i++)
1266 if (m32r_elf_howto_table[i].name != NULL
1267 && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1268 return &m32r_elf_howto_table[i];
1269
1270 return NULL;
1271}
1272
252b5132
RH		 1273/* Set the howto pointer for an M32R ELF reloc. */
1274
f3185997 1275static bfd_boolean
47b0e7ad
NC		 1276m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1277 arelent *cache_ptr,
1278 Elf_Internal_Rela *dst)
252b5132
RH		 1279{
1280 unsigned int r_type;
1281
1282 r_type = ELF32_R_TYPE (dst->r_info);
5860e3f8
NC		 1283 if (r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1284 {
695344c0 1285 /* xgettext:c-format */
0aa13fee
AM		 1286 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1287 abfd, r_type);
f3185997
NC		 1288 bfd_set_error (bfd_error_bad_value);
1289 return FALSE;
5860e3f8 1290 }
252b5132 1291 cache_ptr->howto = &m32r_elf_howto_table[r_type];
f3185997 1292 return TRUE;
252b5132 1293}
6edf0760 1294
f3185997 1295static bfd_boolean
47b0e7ad
NC		 1296m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1297 arelent *cache_ptr,
1298 Elf_Internal_Rela *dst)
6edf0760 1299{
f3185997
NC		 1300 unsigned int r_type = ELF32_R_TYPE (dst->r_info);
1301
1302 if (r_type == (unsigned int) R_M32R_NONE
1303 || ((r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1304 && (r_type < (unsigned int) R_M32R_max)))
1305 {
1306 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1307 return TRUE;
1308 }
1309
1310 /* xgettext:c-format */
1311 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r_type);
1312 bfd_set_error (bfd_error_bad_value);
4b24dd1a 1313 return FALSE;
6edf0760
NC		 1314}
1315
252b5132
RH		 1316\f
1317/* Given a BFD section, try to locate the corresponding ELF section
1318 index. */
1319
47b0e7ad
NC		 1320static bfd_boolean
1321_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1322 asection *sec,
1323 int *retval)
252b5132 1324{
fd361982 1325 if (strcmp (bfd_section_name (sec), ".scommon") == 0)
252b5132
RH		 1326 {
1327 *retval = SHN_M32R_SCOMMON;
b34976b6 1328 return TRUE;
252b5132 1329 }
b34976b6 1330 return FALSE;
252b5132
RH		 1331}
1332
1333/* M32R ELF uses two common sections. One is the usual one, and the other
1334 is for small objects. All the small objects are kept together, and then
1335 referenced via one register, which yields faster assembler code. It is
1336 up to the compiler to emit an instruction to load the register with
1337 _SDA_BASE. This is what we use for the small common section. This
1338 approach is copied from elf32-mips.c. */
1339static asection m32r_elf_scom_section;
1340static asymbol m32r_elf_scom_symbol;
1341static asymbol *m32r_elf_scom_symbol_ptr;
1342
1343/* Handle the special M32R section numbers that a symbol may use. */
1344
47b0e7ad
NC		 1345static void
1346_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1347{
47b0e7ad 1348 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH		 1349
1350 switch (elfsym->internal_elf_sym.st_shndx)
1351 {
1352 case SHN_M32R_SCOMMON:
1353 if (m32r_elf_scom_section.name == NULL)
1354 {
1355 /* Initialize the small common section. */
1356 m32r_elf_scom_section.name = ".scommon";
4d182367 1357 m32r_elf_scom_section.flags = SEC_IS_COMMON | SEC_SMALL_DATA;
252b5132
RH		 1358 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1359 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1360 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1361 m32r_elf_scom_symbol.name = ".scommon";
1362 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1363 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1364 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1365 }
1366 asym->section = &m32r_elf_scom_section;
1367 asym->value = elfsym->internal_elf_sym.st_size;
1368 break;
1369 }
1370}
1371
1372/* Hook called by the linker routine which adds symbols from an object
1373 file. We must handle the special M32R section numbers here.
1374 We also keep watching for whether we need to create the sdata special
1375 linker sections. */
1376
b34976b6 1377static bfd_boolean
47b0e7ad
NC		 1378m32r_elf_add_symbol_hook (bfd *abfd,
1379 struct bfd_link_info *info,
1380 Elf_Internal_Sym *sym,
1381 const char **namep,
1382 flagword *flagsp ATTRIBUTE_UNUSED,
1383 asection **secp,
1384 bfd_vma *valp)
252b5132 1385{
0e1862bb 1386 if (! bfd_link_relocatable (info)
252b5132 1387 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1388 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1389 && is_elf_hash_table (info->hash))
252b5132
RH		 1390 {
1391 /* This is simpler than using _bfd_elf_create_linker_section
1392 (our needs are simpler than ppc's needs). Also
1393 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1394 section already exists a new one is created that follows it which
1395 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1396 struct elf_link_hash_entry *h;
14a793b2 1397 struct bfd_link_hash_entry *bh;
252b5132
RH		 1398 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1399
6edf0760 1400 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC		 1401 if (s == NULL)
1402 {
1403 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1404 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1405
3496cb2a
L		 1406 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1407 flags);
6edf0760
NC		 1408 if (s == NULL)
1409 return FALSE;
fd361982 1410 if (!bfd_set_section_alignment (s, 2))
a253d456 1411 return FALSE;
6edf0760
NC		 1412 }
1413
1414 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1415 FALSE, FALSE, FALSE);
1416
1417 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1418 && !(_bfd_generic_link_add_one_symbol (info,
1419 abfd,
1420 "_SDA_BASE_",
1421 BSF_GLOBAL,
1422 s,
1423 (bfd_vma) 32768,
47b0e7ad 1424 NULL,
6edf0760
NC		 1425 FALSE,
1426 get_elf_backend_data (abfd)->collect,
1427 &bh)))
1428 return FALSE;
1429 h = (struct elf_link_hash_entry *) bh;
1430 h->type = STT_OBJECT;
1431 }
1432
1433 switch (sym->st_shndx)
1434 {
1435 case SHN_M32R_SCOMMON:
1436 *secp = bfd_make_section_old_way (abfd, ".scommon");
10885e24 1437 (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
6edf0760
NC		 1438 *valp = sym->st_size;
1439 break;
1440 }
1441
1442 return TRUE;
1443}
1444
1445/* We have to figure out the SDA_BASE value, so that we can adjust the
1446 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1447 BFD. If we can't find it, we're stuck. We cache it in the ELF
1448 target data. We don't need to adjust the symbol value for an
1449 external symbol if we are producing relocatable output. */
1450
1451static bfd_reloc_status_type
47b0e7ad
NC		 1452m32r_elf_final_sda_base (bfd *output_bfd,
1453 struct bfd_link_info *info,
1454 const char **error_message,
1455 bfd_vma *psb)
6edf0760
NC		 1456{
1457 if (elf_gp (output_bfd) == 0)
1458 {
1459 struct bfd_link_hash_entry *h;
1460
1461 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1462 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC		 1463 elf_gp (output_bfd) = (h->u.def.value
1464 + h->u.def.section->output_section->vma
1465 + h->u.def.section->output_offset);
1466 else
1467 {
1468 /* Only get the error once. */
1469 *psb = elf_gp (output_bfd) = 4;
1470 *error_message =
1471 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1472 return bfd_reloc_dangerous;
1473 }
1474 }
1475 *psb = elf_gp (output_bfd);
1476 return bfd_reloc_ok;
1477}
1478\f
1479/* Return size of a PLT entry. */
1480#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1481
1482/* The m32r linker needs to keep track of the number of relocs that it
1483 decides to copy in check_relocs for each symbol. This is so that
1484 it can discard PC relative relocs if it doesn't need them when
1485 linking with -Bsymbolic. We store the information in a field
1486 extending the regular ELF linker hash table. */
1487
1488/* This structure keeps track of the number of PC relative relocs we
1489 have copied for a given symbol. */
1490
1491struct elf_m32r_pcrel_relocs_copied
1492{
1493 /* Next section. */
1494 struct elf_m32r_pcrel_relocs_copied *next;
1495 /* A section in dynobj. */
1496 asection *section;
1497 /* Number of relocs copied in this section. */
1498 bfd_size_type count;
1499};
1500
6edf0760
NC		 1501/* Traverse an m32r ELF linker hash table. */
1502
1503#define m32r_elf_link_hash_traverse(table, func, info) \
1504 (elf_link_hash_traverse \
1505 (&(table)->root, \
47b0e7ad 1506 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC		 1507 (info)))
1508
1509/* Get the m32r ELF linker hash table from a link_info structure. */
1510
6edf0760 1511#define m32r_elf_hash_table(p) \
0f55320b
AM		 1512 ((is_elf_hash_table ((p)->hash) \
1513 && elf_hash_table_id (elf_hash_table (p)) == M32R_ELF_DATA) \
1514 ? (struct elf_link_hash_table *) (p)->hash : NULL)
6edf0760 1515
6edf0760 1516/* Create an m32r ELF linker hash table. */
6edf0760
NC		 1517
1518static struct bfd_link_hash_table *
47b0e7ad 1519m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760 1520{
f1dfbfdb
L		 1521 struct elf_link_hash_table *ret;
1522 size_t amt = sizeof (struct elf_link_hash_table);
41978308 1523
7bf52ea2 1524 ret = bfd_zmalloc (amt);
47b0e7ad 1525 if (ret == NULL)
6edf0760 1526 return NULL;
41978308 1527
f1dfbfdb 1528 if (!_bfd_elf_link_hash_table_init (ret, abfd,
190eb1dd
L		 1529 _bfd_elf_link_hash_newfunc,
1530 sizeof (struct elf_link_hash_entry),
4dfe6ac6 1531 M32R_ELF_DATA))
6edf0760
NC		 1532 {
1533 free (ret);
1534 return NULL;
1535 }
41978308 1536
f1dfbfdb 1537 return &ret->root;
6edf0760
NC		 1538}
1539
6edf0760
NC		 1540/* Create dynamic sections when linking against a dynamic object. */
1541
1542static bfd_boolean
47b0e7ad 1543m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760 1544{
f1dfbfdb 1545 struct elf_link_hash_table *htab;
6edf0760 1546 flagword flags, pltflags;
47b0e7ad 1547 asection *s;
6edf0760
NC		 1548 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1549 int ptralign = 2; /* 32bit */
1550
1551 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1552 if (htab == NULL)
1553 return FALSE;
6edf0760
NC		 1554
1555 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1556 .rel[a].bss sections. */
6edf0760 1557 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
07d6d2b8 1558 | SEC_LINKER_CREATED);
6edf0760
NC		 1559
1560 pltflags = flags;
1561 pltflags |= SEC_CODE;
1562 if (bed->plt_not_loaded)
1563 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1564 if (bed->plt_readonly)
1565 pltflags |= SEC_READONLY;
1566
3d4d4302 1567 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
f1dfbfdb 1568 htab->splt = s;
6edf0760 1569 if (s == NULL
fd361982 1570 || !bfd_set_section_alignment (s, bed->plt_alignment))
6edf0760
NC		 1571 return FALSE;
1572
1573 if (bed->want_plt_sym)
1574 {
1575 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
07d6d2b8 1576 .plt section. */
41978308
AM		 1577 struct bfd_link_hash_entry *bh = NULL;
1578 struct elf_link_hash_entry *h;
47b0e7ad 1579
6edf0760 1580 if (! (_bfd_generic_link_add_one_symbol
07d6d2b8
AM		 1581 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1582 (bfd_vma) 0, NULL, FALSE,
1583 get_elf_backend_data (abfd)->collect, &bh)))
1584 return FALSE;
41978308 1585 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1586 h->def_regular = 1;
6edf0760 1587 h->type = STT_OBJECT;
f1dfbfdb 1588 htab->hplt = h;
6edf0760 1589
0e1862bb 1590 if (bfd_link_pic (info)
07d6d2b8
AM		 1591 && ! bfd_elf_link_record_dynamic_symbol (info, h))
1592 return FALSE;
6edf0760
NC		 1593 }
1594
3d4d4302
AM		 1595 s = bfd_make_section_anyway_with_flags (abfd,
1596 bed->default_use_rela_p
1597 ? ".rela.plt" : ".rel.plt",
1598 flags | SEC_READONLY);
f1dfbfdb 1599 htab->srelplt = s;
6edf0760 1600 if (s == NULL
fd361982 1601 || !bfd_set_section_alignment (s, ptralign))
6edf0760
NC		 1602 return FALSE;
1603
f1dfbfdb 1604 if (htab->sgot == NULL
ce558b89 1605 && !_bfd_elf_create_got_section (abfd, info))
6edf0760
NC		 1606 return FALSE;
1607
6edf0760
NC		 1608 if (bed->want_dynbss)
1609 {
1610 /* The .dynbss section is a place to put symbols which are defined
07d6d2b8
AM		 1611 by dynamic objects, are referenced by regular objects, and are
1612 not functions. We must allocate space for them in the process
1613 image and use a R_*_COPY reloc to tell the dynamic linker to
1614 initialize them at run time. The linker script puts the .dynbss
1615 section into the .bss section of the final image. */
3d4d4302
AM		 1616 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1617 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1618 htab->sdynbss = s;
3496cb2a 1619 if (s == NULL)
07d6d2b8 1620 return FALSE;
6edf0760 1621 /* The .rel[a].bss section holds copy relocs. This section is not
07d6d2b8
AM		 1622 normally needed. We need to create it here, though, so that the
1623 linker will map it to an output section. We can't just create it
1624 only if we need it, because we will not know whether we need it
1625 until we have seen all the input files, and the first time the
1626 main linker code calls BFD after examining all the input files
1627 (size_dynamic_sections) the input sections have already been
1628 mapped to the output sections. If the section turns out not to
1629 be needed, we can discard it later. We will never need this
1630 section when generating a shared object, since they do not use
1631 copy relocs. */
0e1862bb 1632 if (! bfd_link_pic (info))
07d6d2b8
AM		 1633 {
1634 s = bfd_make_section_anyway_with_flags (abfd,
3d4d4302
AM		 1635 (bed->default_use_rela_p
1636 ? ".rela.bss" : ".rel.bss"),
1637 flags | SEC_READONLY);
07d6d2b8
AM		 1638 htab->srelbss = s;
1639 if (s == NULL
fd361982 1640 || !bfd_set_section_alignment (s, ptralign))
07d6d2b8
AM		 1641 return FALSE;
1642 }
6edf0760
NC		 1643 }
1644
1645 return TRUE;
1646}
1647
6edf0760
NC		 1648\f
1649/* Adjust a symbol defined by a dynamic object and referenced by a
1650 regular object. The current definition is in some section of the
1651 dynamic object, but we're not including those sections. We have to
1652 change the definition to something the rest of the link can
1653 understand. */
41978308 1654
6edf0760 1655static bfd_boolean
47b0e7ad
NC		 1656m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1657 struct elf_link_hash_entry *h)
6edf0760 1658{
f1dfbfdb 1659 struct elf_link_hash_table *htab;
6edf0760
NC		 1660 bfd *dynobj;
1661 asection *s;
6edf0760
NC		 1662
1663#ifdef DEBUG_PIC
47b0e7ad 1664 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1665#endif
41978308 1666
6edf0760 1667 dynobj = elf_hash_table (info)->dynobj;
41978308 1668
6edf0760
NC		 1669 /* Make sure we know what is going on here. */
1670 BFD_ASSERT (dynobj != NULL
07d6d2b8
AM		 1671 && (h->needs_plt
1672 || h->is_weakalias
1673 || (h->def_dynamic
1674 && h->ref_regular
1675 && !h->def_regular)));
6edf0760 1676
6edf0760
NC		 1677 /* If this is a function, put it in the procedure linkage table. We
1678 will fill in the contents of the procedure linkage table later,
1679 when we know the address of the .got section. */
1680 if (h->type == STT_FUNC
f5385ebf 1681 || h->needs_plt)
6edf0760 1682 {
0e1862bb 1683 if (! bfd_link_pic (info)
07d6d2b8
AM		 1684 && !h->def_dynamic
1685 && !h->ref_dynamic
6edf0760
NC		 1686 && h->root.type != bfd_link_hash_undefweak
1687 && h->root.type != bfd_link_hash_undefined)
07d6d2b8
AM		 1688 {
1689 /* This case can occur if we saw a PLT reloc in an input
1690 file, but the symbol was never referred to by a dynamic
1691 object. In such a case, we don't actually need to build
1692 a procedure linkage table, and we can just do a PCREL
1693 reloc instead. */
1694 h->plt.offset = (bfd_vma) -1;
1695 h->needs_plt = 0;
1696 }
6edf0760
NC		 1697
1698 return TRUE;
1699 }
1700 else
1701 h->plt.offset = (bfd_vma) -1;
41978308 1702
6edf0760
NC		 1703 /* If this is a weak symbol, and there is a real definition, the
1704 processor independent code will have arranged for us to see the
1705 real definition first, and we can just use the same value. */
60d67dc8 1706 if (h->is_weakalias)
6edf0760 1707 {
60d67dc8
AM		 1708 struct elf_link_hash_entry *def = weakdef (h);
1709 BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1710 h->root.u.def.section = def->root.u.def.section;
1711 h->root.u.def.value = def->root.u.def.value;
6edf0760
NC		 1712 return TRUE;
1713 }
41978308 1714
6edf0760
NC		 1715 /* This is a reference to a symbol defined by a dynamic object which
1716 is not a function. */
41978308 1717
6edf0760
NC		 1718 /* If we are creating a shared library, we must presume that the
1719 only references to the symbol are via the global offset table.
1720 For such cases we need not do anything here; the relocations will
1721 be handled correctly by relocate_section. */
0e1862bb 1722 if (bfd_link_pic (info))
6edf0760 1723 return TRUE;
41978308 1724
6edf0760
NC		 1725 /* If there are no references to this symbol that do not use the
1726 GOT, we don't need to generate a copy reloc. */
f5385ebf 1727 if (!h->non_got_ref)
6edf0760
NC		 1728 return TRUE;
1729
1730 /* If -z nocopyreloc was given, we won't generate them either. */
3bf083ed 1731 if (0 && info->nocopyreloc)
6edf0760 1732 {
f5385ebf 1733 h->non_got_ref = 0;
6edf0760
NC		 1734 return TRUE;
1735 }
1736
3bf083ed
AM		 1737 /* If we don't find any dynamic relocs in read-only sections, then
1738 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
5dbc8b37 1739 if (0 && !_bfd_elf_readonly_dynrelocs (h))
6edf0760 1740 {
f5385ebf 1741 h->non_got_ref = 0;
6edf0760
NC		 1742 return TRUE;
1743 }
1744
1745 /* We must allocate the symbol in our .dynbss section, which will
1746 become part of the .bss section of the executable. There will be
1747 an entry for this symbol in the .dynsym section. The dynamic
1748 object will contain position independent code, so all references
1749 from the dynamic object to this symbol will go through the global
1750 offset table. The dynamic linker will use the .dynsym entry to
1751 determine the address it must put in the global offset table, so
1752 both the dynamic object and the regular object will refer to the
1753 same memory location for the variable. */
41978308 1754
6edf0760 1755 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1756 if (htab == NULL)
1757 return FALSE;
1758
6edf0760
NC		 1759 s = htab->sdynbss;
1760 BFD_ASSERT (s != NULL);
41978308 1761
6edf0760
NC		 1762 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1763 to copy the initial value out of the dynamic object and into the
1764 runtime process image. We need to remember the offset into the
1765 .rela.bss section we are going to use. */
1d7e9d18 1766 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
6edf0760
NC		 1767 {
1768 asection *srel;
41978308 1769
6edf0760
NC		 1770 srel = htab->srelbss;
1771 BFD_ASSERT (srel != NULL);
eea6121a 1772 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1773 h->needs_copy = 1;
6edf0760 1774 }
41978308 1775
6cabe1ea 1776 return _bfd_elf_adjust_dynamic_copy (info, h, s);
6edf0760
NC		 1777}
1778
6edf0760
NC		 1779/* Allocate space in .plt, .got and associated reloc sections for
1780 dynamic relocs. */
41978308 1781
6edf0760 1782static bfd_boolean
47b0e7ad 1783allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 1784{
1785 struct bfd_link_info *info;
f1dfbfdb 1786 struct elf_link_hash_table *htab;
3bf083ed 1787 struct elf_dyn_relocs *p;
41978308 1788
6edf0760
NC		 1789 if (h->root.type == bfd_link_hash_indirect)
1790 return TRUE;
41978308 1791
6edf0760
NC		 1792 info = (struct bfd_link_info *) inf;
1793 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1794 if (htab == NULL)
1795 return FALSE;
41978308 1796
f1dfbfdb 1797 if (htab->dynamic_sections_created
6edf0760
NC		 1798 && h->plt.refcount > 0)
1799 {
1800 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 1801 Undefined weak syms won't yet be marked as dynamic. */
6edf0760 1802 if (h->dynindx == -1
07d6d2b8
AM		 1803 && !h->forced_local)
1804 {
1805 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1806 return FALSE;
1807 }
41978308 1808
0e1862bb 1809 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
07d6d2b8 1810 {
f1dfbfdb 1811 asection *s = htab->splt;
07d6d2b8
AM		 1812
1813 /* If this is the first .plt entry, make room for the special
1814 first entry. */
1815 if (s->size == 0)
1816 s->size += PLT_ENTRY_SIZE;
1817
1818 h->plt.offset = s->size;
1819
1820 /* If this symbol is not defined in a regular file, and we are
1821 not generating a shared library, then set the symbol to this
1822 location in the .plt. This is required to make function
1823 pointers compare as equal between the normal executable and
1824 the shared library. */
1825 if (! bfd_link_pic (info)
1826 && !h->def_regular)
1827 {
1828 h->root.u.def.section = s;
1829 h->root.u.def.value = h->plt.offset;
1830 }
1831
1832 /* Make room for this entry. */
1833 s->size += PLT_ENTRY_SIZE;
1834
1835 /* We also need to make an entry in the .got.plt section, which
1836 will be placed in the .got section by the linker script. */
f1dfbfdb 1837 htab->sgotplt->size += 4;
07d6d2b8
AM		 1838
1839 /* We also need to make an entry in the .rel.plt section. */
f1dfbfdb 1840 htab->srelplt->size += sizeof (Elf32_External_Rela);
07d6d2b8 1841 }
6edf0760 1842 else
07d6d2b8
AM		 1843 {
1844 h->plt.offset = (bfd_vma) -1;
1845 h->needs_plt = 0;
1846 }
6edf0760
NC		 1847 }
1848 else
1849 {
1850 h->plt.offset = (bfd_vma) -1;
f5385ebf 1851 h->needs_plt = 0;
6edf0760 1852 }
41978308 1853
6edf0760
NC		 1854 if (h->got.refcount > 0)
1855 {
1856 asection *s;
1857 bfd_boolean dyn;
41978308 1858
6edf0760 1859 /* Make sure this symbol is output as a dynamic symbol.
07d6d2b8 1860 Undefined weak syms won't yet be marked as dynamic. */
6edf0760 1861 if (h->dynindx == -1
07d6d2b8
AM		 1862 && !h->forced_local)
1863 {
1864 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1865 return FALSE;
1866 }
41978308 1867
f1dfbfdb 1868 s = htab->sgot;
6edf0760 1869
eea6121a
AM		 1870 h->got.offset = s->size;
1871 s->size += 4;
f1dfbfdb 1872 dyn = htab->dynamic_sections_created;
0e1862bb 1873 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
f1dfbfdb 1874 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 1875 }
1876 else
1877 h->got.offset = (bfd_vma) -1;
41978308 1878
190eb1dd 1879 if (h->dyn_relocs == NULL)
6edf0760 1880 return TRUE;
41978308 1881
6edf0760
NC		 1882 /* In the shared -Bsymbolic case, discard space allocated for
1883 dynamic pc-relative relocs against symbols which turn out to be
1884 defined in regular objects. For the normal shared case, discard
1885 space for pc-relative relocs that have become local due to symbol
1886 visibility changes. */
1887
0e1862bb 1888 if (bfd_link_pic (info))
6edf0760 1889 {
f5385ebf 1890 if (h->def_regular
07d6d2b8
AM		 1891 && (h->forced_local
1892 || info->symbolic))
1893 {
1894 struct elf_dyn_relocs **pp;
1895
190eb1dd 1896 for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
07d6d2b8
AM		 1897 {
1898 p->count -= p->pc_count;
1899 p->pc_count = 0;
1900 if (p->count == 0)
1901 *pp = p->next;
1902 else
1903 pp = &p->next;
1904 }
1905 }
22d606e9
AM		 1906
1907 /* Also discard relocs on undefined weak syms with non-default
1908 visibility. */
190eb1dd 1909 if (h->dyn_relocs != NULL
22d606e9
AM		 1910 && h->root.type == bfd_link_hash_undefweak)
1911 {
1912 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
190eb1dd 1913 h->dyn_relocs = NULL;
22d606e9
AM		 1914
1915 /* Make sure undefined weak symbols are output as a dynamic
1916 symbol in PIEs. */
1917 else if (h->dynindx == -1
1918 && !h->forced_local)
1919 {
1920 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1921 return FALSE;
1922 }
1923 }
6edf0760
NC		 1924 }
1925 else
1926 {
1927 /* For the non-shared case, discard space for relocs against
07d6d2b8
AM		 1928 symbols which turn out to need copy relocs or are not
1929 dynamic. */
41978308 1930
f5385ebf 1931 if (!h->non_got_ref
07d6d2b8
AM		 1932 && ((h->def_dynamic
1933 && !h->def_regular)
f1dfbfdb 1934 || (htab->dynamic_sections_created
07d6d2b8
AM		 1935 && (h->root.type == bfd_link_hash_undefweak
1936 || h->root.type == bfd_link_hash_undefined))))
1937 {
1938 /* Make sure this symbol is output as a dynamic symbol.
1939 Undefined weak syms won't yet be marked as dynamic. */
1940 if (h->dynindx == -1
1941 && !h->forced_local)
1942 {
1943 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1944 return FALSE;
1945 }
1946
1947 /* If that succeeded, we know we'll be keeping all the
1948 relocs. */
1949 if (h->dynindx != -1)
1950 goto keep;
1951 }
41978308 1952
190eb1dd 1953 h->dyn_relocs = NULL;
41978308 1954
6edf0760
NC		 1955 keep: ;
1956 }
41978308 1957
6edf0760 1958 /* Finally, allocate space. */
190eb1dd 1959 for (p = h->dyn_relocs; p != NULL; p = p->next)
6edf0760
NC		 1960 {
1961 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 1962 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 1963 }
41978308 1964
6edf0760
NC		 1965 return TRUE;
1966}
47b0e7ad 1967
6edf0760 1968/* Set the sizes of the dynamic sections. */
41978308 1969
6edf0760 1970static bfd_boolean
47b0e7ad
NC		 1971m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
1972 struct bfd_link_info *info)
6edf0760 1973{
f1dfbfdb 1974 struct elf_link_hash_table *htab;
6edf0760
NC		 1975 bfd *dynobj;
1976 asection *s;
1977 bfd_boolean relocs;
1978 bfd *ibfd;
1979
1980#ifdef DEBUG_PIC
47b0e7ad 1981 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC		 1982#endif
1983
1984 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 1985 if (htab == NULL)
1986 return FALSE;
1987
f1dfbfdb 1988 dynobj = htab->dynobj;
6edf0760
NC		 1989 BFD_ASSERT (dynobj != NULL);
1990
f1dfbfdb 1991 if (htab->dynamic_sections_created)
252b5132 1992 {
6edf0760 1993 /* Set the contents of the .interp section to the interpreter. */
9b8b325a 1994 if (bfd_link_executable (info) && !info->nointerp)
6edf0760 1995 {
3d4d4302 1996 s = bfd_get_linker_section (dynobj, ".interp");
6edf0760 1997 BFD_ASSERT (s != NULL);
eea6121a 1998 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC		 1999 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2000 }
252b5132
RH		 2001 }
2002
6edf0760
NC		 2003 /* Set up .got offsets for local syms, and space for local dynamic
2004 relocs. */
c72f2fb2 2005 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
6edf0760
NC		 2006 {
2007 bfd_signed_vma *local_got;
2008 bfd_signed_vma *end_local_got;
2009 bfd_size_type locsymcount;
2010 Elf_Internal_Shdr *symtab_hdr;
2011 asection *srel;
252b5132 2012
6edf0760 2013 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
07d6d2b8 2014 continue;
252b5132 2015
6edf0760 2016 for (s = ibfd->sections; s != NULL; s = s->next)
07d6d2b8
AM		 2017 {
2018 struct elf_dyn_relocs *p;
2019
2020 for (p = ((struct elf_dyn_relocs *)
2021 elf_section_data (s)->local_dynrel);
2022 p != NULL;
2023 p = p->next)
2024 {
2025 if (! bfd_is_abs_section (p->sec)
2026 && bfd_is_abs_section (p->sec->output_section))
2027 {
2028 /* Input section has been discarded, either because
2029 it is a copy of a linkonce section or due to
2030 linker script /DISCARD/, so we'll be discarding
2031 the relocs too. */
2032 }
2033 else if (p->count != 0)
2034 {
2035 srel = elf_section_data (p->sec)->sreloc;
2036 srel->size += p->count * sizeof (Elf32_External_Rela);
2037 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2038 info->flags |= DF_TEXTREL;
2039 }
2040 }
2041 }
6edf0760
NC		 2042
2043 local_got = elf_local_got_refcounts (ibfd);
2044 if (!local_got)
07d6d2b8 2045 continue;
6edf0760
NC		 2046
2047 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2048 locsymcount = symtab_hdr->sh_info;
2049 end_local_got = local_got + locsymcount;
f1dfbfdb
L		 2050 s = htab->sgot;
2051 srel = htab->srelgot;
6edf0760 2052 for (; local_got < end_local_got; ++local_got)
07d6d2b8
AM		 2053 {
2054 if (*local_got > 0)
2055 {
2056 *local_got = s->size;
2057 s->size += 4;
2058 if (bfd_link_pic (info))
2059 srel->size += sizeof (Elf32_External_Rela);
2060 }
2061 else
2062 *local_got = (bfd_vma) -1;
2063 }
6edf0760
NC		 2064 }
2065
2066 /* Allocate global sym .plt and .got entries, and space for global
2067 sym dynamic relocs. */
f1dfbfdb 2068 elf_link_hash_traverse (htab, allocate_dynrelocs, info);
6edf0760
NC		 2069
2070 /* We now have determined the sizes of the various dynamic sections.
2071 Allocate memory for them. */
2072 relocs = FALSE;
2073 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2074 {
6edf0760 2075 if ((s->flags & SEC_LINKER_CREATED) == 0)
07d6d2b8 2076 continue;
252b5132 2077
f1dfbfdb
L		 2078 if (s == htab->splt
2079 || s == htab->sgot
2080 || s == htab->sgotplt
c456f082 2081 || s == htab->sdynbss)
07d6d2b8
AM		 2082 {
2083 /* Strip this section if we don't need it; see the
2084 comment below. */
2085 }
fd361982 2086 else if (CONST_STRNEQ (bfd_section_name (s), ".rela"))
07d6d2b8 2087 {
f1dfbfdb 2088 if (s->size != 0 && s != htab->srelplt)
07d6d2b8
AM		 2089 relocs = TRUE;
2090
2091 /* We use the reloc_count field as a counter if we need
2092 to copy relocs into the output file. */
2093 s->reloc_count = 0;
2094 }
252b5132 2095 else
47b0e7ad
NC		 2096 /* It's not one of our sections, so don't allocate space. */
2097 continue;
6edf0760 2098
eea6121a 2099 if (s->size == 0)
07d6d2b8
AM		 2100 {
2101 /* If we don't need this section, strip it from the
2102 output file. This is mostly to handle .rela.bss and
2103 .rela.plt. We must create both sections in
2104 create_dynamic_sections, because they must be created
2105 before the linker maps input sections to output
2106 sections. The linker does that before
2107 adjust_dynamic_symbol is called, and it is that
2108 function which decides whether anything needs to go
2109 into these sections. */
2110 s->flags |= SEC_EXCLUDE;
2111 continue;
2112 }
6edf0760 2113
c456f082
AM		 2114 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2115 continue;
2116
6edf0760 2117 /* Allocate memory for the section contents. We use bfd_zalloc
07d6d2b8
AM		 2118 here in case unused entries are not reclaimed before the
2119 section's contents are written out. This should not happen,
2120 but this way if it does, we get a R_M32R_NONE reloc instead
2121 of garbage. */
47b0e7ad 2122 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760 2123 if (s->contents == NULL)
07d6d2b8 2124 return FALSE;
6edf0760
NC		 2125 }
2126
3084d7a2 2127 return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs);
252b5132 2128}
47b0e7ad 2129
252b5132
RH		 2130/* Relocate an M32R/D ELF section.
2131 There is some attempt to make this function usable for many architectures,
f0fe0e16 2132 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH		 2133
2134 The RELOCATE_SECTION function is called by the new ELF backend linker
2135 to handle the relocations for a section.
2136
2137 The relocs are always passed as Rela structures; if the section
2138 actually uses Rel structures, the r_addend field will always be
2139 zero.
2140
2141 This function is responsible for adjust the section contents as
2142 necessary, and (if using Rela relocs and generating a
1049f94e 2143 relocatable output file) adjusting the reloc addend as
252b5132
RH		 2144 necessary.
2145
2146 This function does not have to worry about setting the reloc
2147 address or the reloc symbol index.
2148
2149 LOCAL_SYMS is a pointer to the swapped in local symbols.
2150
2151 LOCAL_SECTIONS is an array giving the section in the input file
2152 corresponding to the st_shndx field of each local symbol.
2153
2154 The global hash table entry for the global symbols can be found
2155 via elf_sym_hashes (input_bfd).
2156
1049f94e 2157 When generating relocatable output, this function must handle
252b5132
RH		 2158 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2159 going to be the section symbol corresponding to the output
2160 section, which means that the addend must be adjusted
2161 accordingly. */
2162
b34976b6 2163static bfd_boolean
47b0e7ad
NC		 2164m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2165 struct bfd_link_info *info,
2166 bfd *input_bfd,
2167 asection *input_section,
2168 bfd_byte *contents,
2169 Elf_Internal_Rela *relocs,
2170 Elf_Internal_Sym *local_syms,
2171 asection **local_sections)
252b5132
RH		 2172{
2173 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2174 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2175 Elf_Internal_Rela *rel, *relend;
2176 /* Assume success. */
b34976b6 2177 bfd_boolean ret = TRUE;
f1dfbfdb 2178 struct elf_link_hash_table *htab = m32r_elf_hash_table (info);
6edf0760
NC		 2179 bfd_vma *local_got_offsets;
2180 asection *sgot, *splt, *sreloc;
07515404 2181 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760 2182
4dfe6ac6
NC		 2183 if (htab == NULL)
2184 return FALSE;
2185
6edf0760 2186 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2187
f1dfbfdb
L		 2188 sgot = htab->sgot;
2189 splt = htab->splt;
6edf0760 2190 sreloc = NULL;
b491616a 2191
252b5132
RH		 2192 rel = relocs;
2193 relend = relocs + input_section->reloc_count;
2194 for (; rel < relend; rel++)
2195 {
2196 int r_type;
2197 reloc_howto_type *howto;
2198 unsigned long r_symndx;
6edf0760 2199 struct elf_link_hash_entry *h;
252b5132 2200 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
07d6d2b8
AM		 2201 ensure it's zero (we use REL relocs, not RELA). Therefore this
2202 should be assigning zero to `addend', but for clarity we use
2203 `r_addend'. */
252b5132
RH		 2204 bfd_vma addend = rel->r_addend;
2205 bfd_vma offset = rel->r_offset;
ab96bf03 2206 bfd_vma relocation;
252b5132
RH		 2207 Elf_Internal_Sym *sym;
2208 asection *sec;
2209 const char *sym_name;
2210 bfd_reloc_status_type r;
2211 const char *errmsg = NULL;
6edf0760 2212 bfd_boolean use_rel = FALSE;
252b5132
RH		 2213
2214 h = NULL;
2215 r_type = ELF32_R_TYPE (rel->r_info);
2216 if (r_type < 0 || r_type >= (int) R_M32R_max)
2217 {
695344c0 2218 /* xgettext:c-format */
0aa13fee 2219 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
4eca0228 2220 input_bfd, (int) r_type);
252b5132 2221 bfd_set_error (bfd_error_bad_value);
b34976b6 2222 ret = FALSE;
252b5132
RH		 2223 continue;
2224 }
2225
47b0e7ad 2226 if ( r_type == R_M32R_GNU_VTENTRY
07d6d2b8
AM		 2227 || r_type == R_M32R_GNU_VTINHERIT
2228 || r_type == R_M32R_NONE
2229 || r_type == R_M32R_RELA_GNU_VTENTRY
2230 || r_type == R_M32R_RELA_GNU_VTINHERIT)
2231 continue;
252b5132 2232
6edf0760 2233 if (r_type <= R_M32R_GNU_VTENTRY)
07d6d2b8 2234 use_rel = TRUE;
6edf0760 2235
252b5132
RH		 2236 howto = m32r_elf_howto_table + r_type;
2237 r_symndx = ELF32_R_SYM (rel->r_info);
2238
ab96bf03
AM		 2239 sym = NULL;
2240 sec = NULL;
2241 h = NULL;
2242
2243 if (r_symndx < symtab_hdr->sh_info)
2244 {
2245 /* Local symbol. */
2246 sym = local_syms + r_symndx;
2247 sec = local_sections[r_symndx];
2248 sym_name = "<local symbol>";
2249
2250 if (!use_rel)
2251 {
2252 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2253 addend = rel->r_addend;
2254 }
2255 else
2256 {
2257 relocation = (sec->output_section->vma
2258 + sec->output_offset
2259 + sym->st_value);
2260 }
2261 }
2262 else
2263 {
2264 /* External symbol. */
2265 relocation = 0;
2266
2267 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
8a5da09b
AM		 2268
2269 if (info->wrap_hash != NULL
2270 && (input_section->flags & SEC_DEBUGGING) != 0)
2271 h = ((struct elf_link_hash_entry *)
2272 unwrap_hash_lookup (info, input_bfd, &h->root));
2273
ab96bf03
AM		 2274 while (h->root.type == bfd_link_hash_indirect
2275 || h->root.type == bfd_link_hash_warning)
2276 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2277 sym_name = h->root.root.string;
2278
2279 if (h->root.type == bfd_link_hash_defined
2280 || h->root.type == bfd_link_hash_defweak)
2281 {
2282 bfd_boolean dyn;
2283 sec = h->root.u.def.section;
2284
f1dfbfdb 2285 dyn = htab->dynamic_sections_created;
ab96bf03
AM		 2286 sec = h->root.u.def.section;
2287 if (r_type == R_M32R_GOTPC24
2288 || (r_type == R_M32R_GOTPC_HI_ULO
2289 || r_type == R_M32R_GOTPC_HI_SLO
2290 || r_type == R_M32R_GOTPC_LO)
2291 || (r_type == R_M32R_26_PLTREL
2292 && h->plt.offset != (bfd_vma) -1)
2293 || ((r_type == R_M32R_GOT24
2294 || r_type == R_M32R_GOT16_HI_ULO
2295 || r_type == R_M32R_GOT16_HI_SLO
2296 || r_type == R_M32R_GOT16_LO)
2297 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L		 2298 bfd_link_pic (info),
2299 h)
2300 && (! bfd_link_pic (info)
ab96bf03
AM		 2301 || (! info->symbolic && h->dynindx != -1)
2302 || !h->def_regular))
0e1862bb 2303 || (bfd_link_pic (info)
ab96bf03
AM		 2304 && ((! info->symbolic && h->dynindx != -1)
2305 || !h->def_regular)
2306 && (((r_type == R_M32R_16_RELA
2307 || r_type == R_M32R_32_RELA
2308 || r_type == R_M32R_24_RELA
2309 || r_type == R_M32R_HI16_ULO_RELA
2310 || r_type == R_M32R_HI16_SLO_RELA
2311 || r_type == R_M32R_LO16_RELA)
2312 && !h->forced_local)
2313 || r_type == R_M32R_REL32
2314 || r_type == R_M32R_10_PCREL_RELA
2315 || r_type == R_M32R_18_PCREL_RELA
2316 || r_type == R_M32R_26_PCREL_RELA)
2317 && ((input_section->flags & SEC_ALLOC) != 0
2318 /* DWARF will emit R_M32R_16(24,32) relocations
2319 in its sections against symbols defined
2320 externally in shared libraries. We can't do
2321 anything with them here. */
2322 || ((input_section->flags & SEC_DEBUGGING) != 0
2323 && h->def_dynamic))))
2324 {
2325 /* In these cases, we don't need the relocation
2326 value. We check specially because in some
2327 obscure cases sec->output_section will be NULL. */
2328 }
2329 else if (sec->output_section != NULL)
2330 relocation = (h->root.u.def.value
2331 + sec->output_section->vma
2332 + sec->output_offset);
0e1862bb 2333 else if (!bfd_link_relocatable (info)
1d5316ab
AM		 2334 && (_bfd_elf_section_offset (output_bfd, info,
2335 input_section,
2336 rel->r_offset)
2337 != (bfd_vma) -1))
ab96bf03 2338 {
4eca0228 2339 _bfd_error_handler
695344c0 2340 /* xgettext:c-format */
2dcf00ce 2341 (_("%pB(%pA+%#" PRIx64 "): unresolvable %s relocation "
d42c267e 2342 "against symbol `%s'"),
ab96bf03
AM		 2343 input_bfd,
2344 input_section,
2dcf00ce 2345 (uint64_t) rel->r_offset,
ab96bf03
AM		 2346 howto->name,
2347 h->root.root.string);
2348 }
2349 }
2350 else if (h->root.type == bfd_link_hash_undefweak)
2351 ;
2352 else if (info->unresolved_syms_in_objects == RM_IGNORE
2353 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2354 ;
0e1862bb 2355 else if (!bfd_link_relocatable (info))
95a51568
FS		 2356 info->callbacks->undefined_symbol
2357 (info, h->root.root.string, input_bfd, input_section, offset,
2358 (info->unresolved_syms_in_objects == RM_DIAGNOSE
2359 && !info->warn_unresolved_syms)
2360 || ELF_ST_VISIBILITY (h->other));
2361 }
ab96bf03 2362
dbaa2011 2363 if (sec != NULL && discarded_section (sec))
e4067dbb 2364 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
545fd46b 2365 rel, 1, relend, howto, 0, contents);
ab96bf03 2366
0e1862bb 2367 if (bfd_link_relocatable (info) && !use_rel)
252b5132 2368 {
1049f94e 2369 /* This is a relocatable link. We don't have to change
252b5132
RH		 2370 anything, unless the reloc is against a section symbol,
2371 in which case we have to adjust according to where the
2372 section symbol winds up in the output section. */
ab96bf03
AM		 2373 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2374 rel->r_addend += sec->output_offset;
2375 continue;
2376 }
252b5132 2377
0e1862bb 2378 if (bfd_link_relocatable (info) && use_rel)
ab96bf03
AM		 2379 {
2380 /* This is a relocatable link. We don't have to change
2381 anything, unless the reloc is against a section symbol,
2382 in which case we have to adjust according to where the
2383 section symbol winds up in the output section. */
2384 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2385 continue;
252b5132 2386
ab96bf03 2387 addend += sec->output_offset;
252b5132 2388
252b5132
RH		 2389 /* If partial_inplace, we need to store any additional addend
2390 back in the section. */
2391 if (! howto->partial_inplace)
2392 continue;
2393 /* ??? Here is a nice place to call a special_function
2394 like handler. */
2395 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2396 r = _bfd_relocate_contents (howto, input_bfd,
2397 addend, contents + offset);
2398 else
2399 {
2400 Elf_Internal_Rela *lorel;
2401
2402 /* We allow an arbitrary number of HI16 relocs before the
2403 LO16 reloc. This permits gcc to emit the HI and LO relocs
2404 itself. */
2405 for (lorel = rel + 1;
2406 (lorel < relend
2407 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2408 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2409 lorel++)
2410 continue;
2411 if (lorel < relend
2412 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2413 {
2414 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2415 contents, addend);
2416 r = bfd_reloc_ok;
2417 }
2418 else
2419 r = _bfd_relocate_contents (howto, input_bfd,
2420 addend, contents + offset);
2421 }
252b5132
RH		 2422 }
2423 else
2424 {
252b5132 2425 /* Sanity check the address. */
07515404 2426 if (offset > high_address)
252b5132
RH		 2427 {
2428 r = bfd_reloc_outofrange;
2429 goto check_reloc;
2430 }
2431
2432 switch ((int) r_type)
2433 {
07d6d2b8
AM		 2434 case R_M32R_GOTOFF:
2435 /* Relocation is relative to the start of the global offset
2436 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2437
07d6d2b8
AM		 2438 ld24 rx. #label@GOTOFF + addend
2439 sub rx, r12. */
097f809a 2440
07d6d2b8 2441 BFD_ASSERT (sgot != NULL);
097f809a 2442
07d6d2b8
AM		 2443 relocation = -(relocation - sgot->output_section->vma);
2444 rel->r_addend = -rel->r_addend;
2445 break;
097f809a 2446
07d6d2b8
AM		 2447 case R_M32R_GOTOFF_HI_ULO:
2448 case R_M32R_GOTOFF_HI_SLO:
2449 case R_M32R_GOTOFF_LO:
097f809a
NC		 2450 BFD_ASSERT (sgot != NULL);
2451
2452 relocation -= sgot->output_section->vma;
2453
2454 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2455 && ((relocation + rel->r_addend) & 0x8000))
2456 rel->r_addend += 0x10000;
2457 break;
2458
07d6d2b8
AM		 2459 case R_M32R_GOTPC24:
2460 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2461 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2462 */
2463 relocation = sgot->output_section->vma;
2464 break;
2465
2466 case R_M32R_GOTPC_HI_ULO:
2467 case R_M32R_GOTPC_HI_SLO:
2468 case R_M32R_GOTPC_LO:
2469 {
2470 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2471 bl .+4
2472 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2473 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2474 or
2475 bl .+4
2476 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2477 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2478 */
2479 relocation = sgot->output_section->vma;
2480 relocation -= (input_section->output_section->vma
2481 + input_section->output_offset
2482 + rel->r_offset);
2483 if ((r_type == R_M32R_GOTPC_HI_SLO)
2484 && ((relocation + rel->r_addend) & 0x8000))
2485 rel->r_addend += 0x10000;
2486
2487 break;
2488 }
2489 case R_M32R_GOT16_HI_ULO:
2490 case R_M32R_GOT16_HI_SLO:
2491 case R_M32R_GOT16_LO:
2492 /* Fall through. */
2493 case R_M32R_GOT24:
2494 /* Relocation is to the entry for this symbol in the global
2495 offset table. */
2496 BFD_ASSERT (sgot != NULL);
2497
2498 if (h != NULL)
2499 {
2500 bfd_boolean dyn;
2501 bfd_vma off;
2502
2503 off = h->got.offset;
2504 BFD_ASSERT (off != (bfd_vma) -1);
2505
f1dfbfdb 2506 dyn = htab->dynamic_sections_created;
07d6d2b8 2507 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
0e1862bb
L		 2508 bfd_link_pic (info),
2509 h)
07d6d2b8
AM		 2510 || (bfd_link_pic (info)
2511 && (info->symbolic
2512 || h->dynindx == -1
2513 || h->forced_local)
2514 && h->def_regular))
2515 {
2516 /* This is actually a static link, or it is a
2517 -Bsymbolic link and the symbol is defined
2518 locally, or the symbol was forced to be local
2519 because of a version file. We must initialize
2520 this entry in the global offset table. Since the
2521 offset must always be a multiple of 4, we use the
2522 least significant bit to record whether we have
2523 initialized it already.
2524
2525 When doing a dynamic link, we create a .rela.got
2526 relocation entry to initialize the value. This
2527 is done in the finish_dynamic_symbol routine. */
2528 if ((off & 1) != 0)
2529 off &= ~1;
2530 else
2531 {
2532 bfd_put_32 (output_bfd, relocation,
2533 sgot->contents + off);
2534 h->got.offset |= 1;
2535 }
2536 }
2537
2538 relocation = sgot->output_offset + off;
2539 }
2540 else
2541 {
2542 bfd_vma off;
2543 bfd_byte *loc;
2544
2545 BFD_ASSERT (local_got_offsets != NULL
2546 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2547
2548 off = local_got_offsets[r_symndx];
2549
2550 /* The offset must always be a multiple of 4. We use
2551 the least significant bit to record whether we have
2552 already processed this entry. */
2553 if ((off & 1) != 0)
2554 off &= ~1;
2555 else
2556 {
2557 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2558
2559 if (bfd_link_pic (info))
2560 {
2561 asection *srelgot;
2562 Elf_Internal_Rela outrel;
2563
2564 /* We need to generate a R_M32R_RELATIVE reloc
2565 for the dynamic linker. */
f1dfbfdb 2566 srelgot = htab->srelgot;
07d6d2b8
AM		 2567 BFD_ASSERT (srelgot != NULL);
2568
2569 outrel.r_offset = (sgot->output_section->vma
2570 + sgot->output_offset
2571 + off);
2572 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2573 outrel.r_addend = relocation;
2574 loc = srelgot->contents;
2575 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2576 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2577 ++srelgot->reloc_count;
2578 }
2579
2580 local_got_offsets[r_symndx] |= 1;
2581 }
2582
2583 relocation = sgot->output_offset + off;
2584 }
2585 if ((r_type == R_M32R_GOT16_HI_SLO)
2586 && ((relocation + rel->r_addend) & 0x8000))
2587 rel->r_addend += 0x10000;
2588
2589 break;
2590
2591 case R_M32R_26_PLTREL:
2592 /* Relocation is to the entry for this symbol in the
2593 procedure linkage table. */
2594
2595 /* The native assembler will generate a 26_PLTREL reloc
2596 for a local symbol if you assemble a call from one
2597 section to another when using -K pic. */
2598 if (h == NULL)
2599 break;
2600
2601 if (h->forced_local)
2602 break;
2603
2604 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC		 2605 /* We didn't make a PLT entry for this symbol. This
2606 happens when statically linking PIC code, or when
2607 using -Bsymbolic. */
2608 break;
41978308 2609
07d6d2b8
AM		 2610 relocation = (splt->output_section->vma
2611 + splt->output_offset
2612 + h->plt.offset);
2613 break;
41978308 2614
07d6d2b8 2615 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC		 2616 if ((relocation + rel->r_addend) & 0x8000)
2617 rel->r_addend += 0x10000;
07d6d2b8 2618 /* Fall through. */
47b0e7ad 2619
07d6d2b8
AM		 2620 case R_M32R_16_RELA:
2621 case R_M32R_24_RELA:
2622 case R_M32R_32_RELA:
2623 case R_M32R_REL32:
8ce757c4 2624 case R_M32R_10_PCREL_RELA:
07d6d2b8
AM		 2625 case R_M32R_18_PCREL_RELA:
2626 case R_M32R_26_PCREL_RELA:
2627 case R_M32R_HI16_ULO_RELA:
2628 case R_M32R_LO16_RELA:
2629 if (bfd_link_pic (info)
2630 && r_symndx != STN_UNDEF
2631 && (input_section->flags & SEC_ALLOC) != 0
2632 && (( r_type != R_M32R_10_PCREL_RELA
2633 && r_type != R_M32R_18_PCREL_RELA
2634 && r_type != R_M32R_26_PCREL_RELA
2635 && r_type != R_M32R_REL32)
2636 || (h != NULL
2637 && h->dynindx != -1
2638 && (! info->symbolic
2639 || !h->def_regular))))
2640 {
2641 Elf_Internal_Rela outrel;
2642 bfd_boolean skip, relocate;
2643 bfd_byte *loc;
2644
2645 /* When generating a shared object, these relocations
2646 are copied into the output file to be resolved at run
2647 time. */
2648 if (sreloc == NULL)
2649 {
83bac4b0
NC		 2650 sreloc = _bfd_elf_get_dynamic_reloc_section
2651 (input_bfd, input_section, /*rela?*/ TRUE);
2652 if (sreloc == NULL)
2653 return FALSE;
07d6d2b8
AM		 2654 }
2655
2656 skip = FALSE;
2657 relocate = FALSE;
2658
2659 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2660 info,
2661 input_section,
2662 rel->r_offset);
2663 if (outrel.r_offset == (bfd_vma) -1)
2664 skip = TRUE;
2665 else if (outrel.r_offset == (bfd_vma) -2)
2666 skip = relocate = TRUE;
2667 outrel.r_offset += (input_section->output_section->vma
2668 + input_section->output_offset);
2669
2670 if (skip)
2671 memset (&outrel, 0, sizeof outrel);
2672 else if ( r_type == R_M32R_10_PCREL_RELA
2673 || r_type == R_M32R_18_PCREL_RELA
2674 || r_type == R_M32R_26_PCREL_RELA
2675 || r_type == R_M32R_REL32)
2676 {
2677 BFD_ASSERT (h != NULL && h->dynindx != -1);
2678 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2679 outrel.r_addend = rel->r_addend;
2680 }
2681 else
2682 {
2683 /* h->dynindx may be -1 if this symbol was marked to
2684 become local. */
2685 if (h == NULL
2686 || ((info->symbolic || h->dynindx == -1)
2687 && h->def_regular))
2688 {
2689 relocate = TRUE;
2690 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2691 outrel.r_addend = relocation + rel->r_addend;
2692 }
2693 else
2694 {
2695 BFD_ASSERT (h->dynindx != -1);
2696 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2697 outrel.r_addend = relocation + rel->r_addend;
2698 }
2699 }
2700
2701 loc = sreloc->contents;
2702 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2703 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2704 ++sreloc->reloc_count;
2705
2706 /* If this reloc is against an external symbol, we do
2707 not want to fiddle with the addend. Otherwise, we
2708 need to include the symbol value so that it becomes
2709 an addend for the dynamic reloc. */
2710 if (! relocate)
2711 continue;
8ce757c4 2712 break;
07d6d2b8 2713 }
8ce757c4
NC		 2714 else if (r_type != R_M32R_10_PCREL_RELA)
2715 break;
2716 /* Fall through. */
41978308 2717
252b5132
RH		 2718 case (int) R_M32R_10_PCREL :
2719 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2720 contents, offset,
2721 sec, relocation, addend);
07d6d2b8 2722 goto check_reloc;
252b5132
RH		 2723
2724 case (int) R_M32R_HI16_SLO :
2725 case (int) R_M32R_HI16_ULO :
2726 {
2727 Elf_Internal_Rela *lorel;
2728
2729 /* We allow an arbitrary number of HI16 relocs before the
2730 LO16 reloc. This permits gcc to emit the HI and LO relocs
2731 itself. */
2732 for (lorel = rel + 1;
2733 (lorel < relend
2734 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2735 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2736 lorel++)
2737 continue;
2738 if (lorel < relend
2739 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2740 {
2741 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2742 contents, relocation + addend);
2743 r = bfd_reloc_ok;
2744 }
2745 else
2746 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2747 contents, offset,
2748 relocation, addend);
2749 }
6edf0760 2750
07d6d2b8 2751 goto check_reloc;
252b5132 2752
07d6d2b8 2753 case (int) R_M32R_SDA16_RELA:
252b5132
RH		 2754 case (int) R_M32R_SDA16 :
2755 {
2756 const char *name;
2757
2758 BFD_ASSERT (sec != NULL);
fd361982 2759 name = bfd_section_name (sec);
252b5132 2760
47b0e7ad 2761 if ( strcmp (name, ".sdata") == 0
252b5132
RH		 2762 || strcmp (name, ".sbss") == 0
2763 || strcmp (name, ".scommon") == 0)
2764 {
2765 bfd_vma sda_base;
2766 bfd *out_bfd = sec->output_section->owner;
2767
2768 r = m32r_elf_final_sda_base (out_bfd, info,
2769 &errmsg,
2770 &sda_base);
2771 if (r != bfd_reloc_ok)
2772 {
b34976b6 2773 ret = FALSE;
252b5132
RH		 2774 goto check_reloc;
2775 }
2776
2777 /* At this point `relocation' contains the object's
2778 address. */
2779 relocation -= sda_base;
2780 /* Now it contains the offset from _SDA_BASE_. */
2781 }
2782 else
2783 {
4eca0228 2784 _bfd_error_handler
695344c0 2785 /* xgettext:c-format */
38f14ab8
AM		 2786 (_("%pB: the target (%s) of an %s relocation"
2787 " is in the wrong section (%pA)"),
d003868e 2788 input_bfd,
8f615d07 2789 sym_name,
c08bb8dd
AM		 2790 m32r_elf_howto_table[(int) r_type].name,
2791 sec);
252b5132 2792 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 2793 ret = FALSE;
252b5132
RH		 2794 continue;
2795 }
2796 }
07d6d2b8 2797 /* Fall through. */
6edf0760
NC		 2798
2799 default : /* OLD_M32R_RELOC */
252b5132 2800
252b5132
RH		 2801 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2802 contents, offset,
2803 relocation, addend);
6edf0760 2804 goto check_reloc;
252b5132 2805 }
6edf0760 2806
07d6d2b8
AM		 2807 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2808 contents, rel->r_offset,
2809 relocation, rel->r_addend);
6edf0760 2810
252b5132
RH		 2811 }
2812
2813 check_reloc:
2814
2815 if (r != bfd_reloc_ok)
2816 {
2817 /* FIXME: This should be generic enough to go in a utility. */
2818 const char *name;
2819
2820 if (h != NULL)
2821 name = h->root.root.string;
2822 else
2823 {
2824 name = (bfd_elf_string_from_elf_section
2825 (input_bfd, symtab_hdr->sh_link, sym->st_name));
2826 if (name == NULL || *name == '\0')
fd361982 2827 name = bfd_section_name (sec);
252b5132
RH		 2828 }
2829
2830 if (errmsg != NULL)
2831 goto common_error;
2832
2833 switch (r)
2834 {
2835 case bfd_reloc_overflow:
1a72702b
AM		 2836 (*info->callbacks->reloc_overflow)
2837 (info, (h ? &h->root : NULL), name, howto->name,
2838 (bfd_vma) 0, input_bfd, input_section, offset);
252b5132
RH		 2839 break;
2840
2841 case bfd_reloc_undefined:
1a72702b
AM		 2842 (*info->callbacks->undefined_symbol)
2843 (info, name, input_bfd, input_section, offset, TRUE);
252b5132
RH		 2844 break;
2845
2846 case bfd_reloc_outofrange:
2847 errmsg = _("internal error: out of range error");
2848 goto common_error;
2849
2850 case bfd_reloc_notsupported:
2851 errmsg = _("internal error: unsupported relocation error");
2852 goto common_error;
2853
2854 case bfd_reloc_dangerous:
2855 errmsg = _("internal error: dangerous error");
2856 goto common_error;
2857
2858 default:
2859 errmsg = _("internal error: unknown error");
2860 /* fall through */
2861
2862 common_error:
1a72702b
AM		 2863 (*info->callbacks->warning) (info, errmsg, name, input_bfd,
2864 input_section, offset);
252b5132
RH		 2865 break;
2866 }
2867 }
2868 }
2869
2870 return ret;
2871}
6edf0760
NC		 2872
2873/* Finish up dynamic symbol handling. We set the contents of various
2874 dynamic sections here. */
47b0e7ad 2875
6edf0760 2876static bfd_boolean
47b0e7ad
NC		 2877m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
2878 struct bfd_link_info *info,
2879 struct elf_link_hash_entry *h,
2880 Elf_Internal_Sym *sym)
6edf0760 2881{
f1dfbfdb 2882 struct elf_link_hash_table *htab;
6edf0760 2883 bfd_byte *loc;
41978308 2884
6edf0760 2885#ifdef DEBUG_PIC
47b0e7ad 2886 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 2887#endif
41978308 2888
6edf0760 2889 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 2890 if (htab == NULL)
2891 return FALSE;
2892
6edf0760
NC		 2893 if (h->plt.offset != (bfd_vma) -1)
2894 {
2895 asection *splt;
2896 asection *sgot;
2897 asection *srela;
2898
2899 bfd_vma plt_index;
2900 bfd_vma got_offset;
2901 Elf_Internal_Rela rela;
41978308 2902
6edf0760 2903 /* This symbol has an entry in the procedure linkage table. Set
07d6d2b8 2904 it up. */
41978308 2905
6edf0760 2906 BFD_ASSERT (h->dynindx != -1);
41978308 2907
f1dfbfdb
L		 2908 splt = htab->splt;
2909 sgot = htab->sgotplt;
2910 srela = htab->srelplt;
6edf0760
NC		 2911 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
2912
2913 /* Get the index in the procedure linkage table which
07d6d2b8
AM		 2914 corresponds to this symbol. This is the index of this symbol
2915 in all the symbols for which we are making plt entries. The
2916 first entry in the procedure linkage table is reserved. */
6edf0760
NC		 2917 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
2918
2919 /* Get the offset into the .got table of the entry that
07d6d2b8
AM		 2920 corresponds to this function. Each .got entry is 4 bytes.
2921 The first three are reserved. */
6edf0760
NC		 2922 got_offset = (plt_index + 3) * 4;
2923
2924 /* Fill in the entry in the procedure linkage table. */
0e1862bb 2925 if (! bfd_link_pic (info))
07d6d2b8
AM		 2926 {
2927 bfd_put_32 (output_bfd,
2928 (PLT_ENTRY_WORD0b
2929 + (((sgot->output_section->vma
2930 + sgot->output_offset
2931 + got_offset) >> 16) & 0xffff)),
2932 splt->contents + h->plt.offset);
2933 bfd_put_32 (output_bfd,
2934 (PLT_ENTRY_WORD1b
2935 + ((sgot->output_section->vma
2936 + sgot->output_offset
2937 + got_offset) & 0xffff)),
2938 splt->contents + h->plt.offset + 4);
2939 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2940 splt->contents + h->plt.offset + 8);
2941 bfd_put_32 (output_bfd,
2942 (PLT_ENTRY_WORD3
2943 + plt_index * sizeof (Elf32_External_Rela)),
2944 splt->contents + h->plt.offset + 12);
2945 bfd_put_32 (output_bfd,
2946 (PLT_ENTRY_WORD4
2947 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2948 splt->contents + h->plt.offset + 16);
2949 }
6edf0760 2950 else
07d6d2b8
AM		 2951 {
2952 bfd_put_32 (output_bfd,
2953 PLT_ENTRY_WORD0 + got_offset,
2954 splt->contents + h->plt.offset);
2955 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
2956 splt->contents + h->plt.offset + 4);
2957 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2958 splt->contents + h->plt.offset + 8);
2959 bfd_put_32 (output_bfd,
2960 (PLT_ENTRY_WORD3
2961 + plt_index * sizeof (Elf32_External_Rela)),
2962 splt->contents + h->plt.offset + 12);
2963 bfd_put_32 (output_bfd,
2964 (PLT_ENTRY_WORD4
2965 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2966 splt->contents + h->plt.offset + 16);
2967 }
41978308 2968
6edf0760
NC		 2969 /* Fill in the entry in the global offset table. */
2970 bfd_put_32 (output_bfd,
07d6d2b8
AM		 2971 (splt->output_section->vma
2972 + splt->output_offset
2973 + h->plt.offset
2974 + 12), /* same offset */
2975 sgot->contents + got_offset);
6edf0760
NC		 2976
2977 /* Fill in the entry in the .rela.plt section. */
2978 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM		 2979 + sgot->output_offset
2980 + got_offset);
6edf0760
NC		 2981 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
2982 rela.r_addend = 0;
2983 loc = srela->contents;
47b0e7ad 2984 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 2985 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 2986
f5385ebf 2987 if (!h->def_regular)
07d6d2b8
AM		 2988 {
2989 /* Mark the symbol as undefined, rather than as defined in
2990 the .plt section. Leave the value alone. */
2991 sym->st_shndx = SHN_UNDEF;
2992 }
6edf0760
NC		 2993 }
2994
2995 if (h->got.offset != (bfd_vma) -1)
2996 {
2997 asection *sgot;
2998 asection *srela;
2999 Elf_Internal_Rela rela;
41978308 3000
6edf0760 3001 /* This symbol has an entry in the global offset table. Set it
07d6d2b8 3002 up. */
41978308 3003
f1dfbfdb
L		 3004 sgot = htab->sgot;
3005 srela = htab->srelgot;
6edf0760 3006 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3007
6edf0760 3008 rela.r_offset = (sgot->output_section->vma
07d6d2b8
AM		 3009 + sgot->output_offset
3010 + (h->got.offset &~ 1));
41978308 3011
6edf0760 3012 /* If this is a -Bsymbolic link, and the symbol is defined
07d6d2b8
AM		 3013 locally, we just want to emit a RELATIVE reloc. Likewise if
3014 the symbol was forced to be local because of a version file.
3015 The entry in the global offset table will already have been
3016 initialized in the relocate_section function. */
0e1862bb 3017 if (bfd_link_pic (info)
07d6d2b8 3018 && (info->symbolic
6edf0760 3019 || h->dynindx == -1
f5385ebf 3020 || h->forced_local)
07d6d2b8
AM		 3021 && h->def_regular)
3022 {
3023 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3024 rela.r_addend = (h->root.u.def.value
3025 + h->root.u.def.section->output_section->vma
3026 + h->root.u.def.section->output_offset);
3027 }
6edf0760 3028 else
07d6d2b8 3029 {
47b0e7ad 3030 BFD_ASSERT ((h->got.offset & 1) == 0);
07d6d2b8
AM		 3031 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3032 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3033 rela.r_addend = 0;
3034 }
41978308 3035
6edf0760 3036 loc = srela->contents;
47b0e7ad 3037 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3038 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3039 ++srela->reloc_count;
3040 }
41978308 3041
f5385ebf 3042 if (h->needs_copy)
6edf0760
NC		 3043 {
3044 asection *s;
3045 Elf_Internal_Rela rela;
41978308 3046
6edf0760 3047 /* This symbols needs a copy reloc. Set it up. */
41978308 3048
6edf0760 3049 BFD_ASSERT (h->dynindx != -1
07d6d2b8
AM		 3050 && (h->root.type == bfd_link_hash_defined
3051 || h->root.type == bfd_link_hash_defweak));
41978308 3052
f1dfbfdb 3053 s = bfd_get_linker_section (htab->dynobj, ".rela.bss");
6edf0760 3054 BFD_ASSERT (s != NULL);
41978308 3055
6edf0760 3056 rela.r_offset = (h->root.u.def.value
07d6d2b8
AM		 3057 + h->root.u.def.section->output_section->vma
3058 + h->root.u.def.section->output_offset);
6edf0760
NC		 3059 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3060 rela.r_addend = 0;
3061 loc = s->contents;
47b0e7ad 3062 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3063 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3064 ++s->reloc_count;
3065 }
41978308 3066
6edf0760 3067 /* Mark some specially defined symbols as absolute. */
f1dfbfdb 3068 if (h == htab->hdynamic || h == htab->hgot)
6edf0760 3069 sym->st_shndx = SHN_ABS;
41978308 3070
6edf0760
NC		 3071 return TRUE;
3072}
3073
3074
3075/* Finish up the dynamic sections. */
41978308 3076
6edf0760 3077static bfd_boolean
47b0e7ad
NC		 3078m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3079 struct bfd_link_info *info)
6edf0760 3080{
f1dfbfdb 3081 struct elf_link_hash_table *htab;
6edf0760
NC		 3082 bfd *dynobj;
3083 asection *sdyn;
3084 asection *sgot;
3085
3086#ifdef DEBUG_PIC
47b0e7ad 3087 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3088#endif
41978308 3089
6edf0760 3090 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3091 if (htab == NULL)
3092 return FALSE;
3093
f1dfbfdb 3094 dynobj = htab->dynobj;
6edf0760 3095
f1dfbfdb 3096 sgot = htab->sgotplt;
3d4d4302 3097 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
41978308 3098
f1dfbfdb 3099 if (htab->dynamic_sections_created)
6edf0760
NC		 3100 {
3101 asection *splt;
3102 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3103
6edf0760 3104 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3105
6edf0760 3106 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3107 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC		 3108
3109 for (; dyncon < dynconend; dyncon++)
07d6d2b8
AM		 3110 {
3111 Elf_Internal_Dyn dyn;
3112 asection *s;
3113
3114 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3115
3116 switch (dyn.d_tag)
3117 {
3118 default:
3119 break;
3120
3121 case DT_PLTGOT:
f1dfbfdb 3122 s = htab->sgotplt;
07d6d2b8
AM		 3123 goto get_vma;
3124 case DT_JMPREL:
f1dfbfdb 3125 s = htab->srelplt;
07d6d2b8
AM		 3126 get_vma:
3127 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3128 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3129 break;
3130
3131 case DT_PLTRELSZ:
f1dfbfdb 3132 s = htab->srelplt;
eea6121a 3133 dyn.d_un.d_val = s->size;
07d6d2b8
AM		 3134 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3135 break;
3136 }
3137 }
41978308 3138
6edf0760 3139 /* Fill in the first entry in the procedure linkage table. */
f1dfbfdb 3140 splt = htab->splt;
eea6121a 3141 if (splt && splt->size > 0)
07d6d2b8
AM		 3142 {
3143 if (bfd_link_pic (info))
3144 {
3145 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3146 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3147 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3148 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3149 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3150 }
3151 else
3152 {
3153 unsigned long addr;
3154 /* addr = .got + 4 */
3155 addr = sgot->output_section->vma + sgot->output_offset + 4;
3156 bfd_put_32 (output_bfd,
6edf0760
NC		 3157 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3158 splt->contents);
07d6d2b8 3159 bfd_put_32 (output_bfd,
6edf0760
NC		 3160 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3161 splt->contents + 4);
07d6d2b8
AM		 3162 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3163 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3164 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3165 }
3166
3167 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3168 PLT_ENTRY_SIZE;
3169 }
6edf0760
NC		 3170 }
3171
3172 /* Fill in the first three entries in the global offset table. */
eea6121a 3173 if (sgot && sgot->size > 0)
6edf0760
NC		 3174 {
3175 if (sdyn == NULL)
07d6d2b8 3176 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
6edf0760 3177 else
07d6d2b8
AM		 3178 bfd_put_32 (output_bfd,
3179 sdyn->output_section->vma + sdyn->output_offset,
3180 sgot->contents);
6edf0760
NC		 3181 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3182 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3183
3184 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3185 }
41978308 3186
6edf0760
NC		 3187 return TRUE;
3188}
3189
252b5132
RH		 3190\f
3191/* Set the right machine number. */
47b0e7ad 3192
b34976b6 3193static bfd_boolean
47b0e7ad 3194m32r_elf_object_p (bfd *abfd)
252b5132
RH		 3195{
3196 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3197 {
3198 default:
3199 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3200 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3201 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3202 }
b34976b6 3203 return TRUE;
252b5132
RH		 3204}
3205
3206/* Store the machine number in the flags field. */
47b0e7ad 3207
cc364be6
AM		 3208static bfd_boolean
3209m32r_elf_final_write_processing (bfd *abfd)
252b5132
RH		 3210{
3211 unsigned long val;
3212
3213 switch (bfd_get_mach (abfd))
3214 {
3215 default:
3216 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3217 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3218 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH		 3219 }
3220
3221 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3222 elf_elfheader (abfd)->e_flags |= val;
cc364be6 3223 return _bfd_elf_final_write_processing (abfd);
252b5132
RH		 3224}
3225
c3668558 3226/* Function to keep M32R specific file flags. */
47b0e7ad 3227
b34976b6 3228static bfd_boolean
47b0e7ad 3229m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH		 3230{
3231 BFD_ASSERT (!elf_flags_init (abfd)
3232 || elf_elfheader (abfd)->e_flags == flags);
3233
3234 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM		 3235 elf_flags_init (abfd) = TRUE;
3236 return TRUE;
252b5132
RH		 3237}
3238
252b5132
RH		 3239/* Merge backend specific data from an object file to the output
3240 object file when linking. */
47b0e7ad 3241
b34976b6 3242static bfd_boolean
50e03d47 3243m32r_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
252b5132 3244{
50e03d47 3245 bfd *obfd = info->output_bfd;
252b5132
RH		 3246 flagword out_flags;
3247 flagword in_flags;
3248
3249 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3250 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3251 return TRUE;
252b5132
RH		 3252
3253 in_flags = elf_elfheader (ibfd)->e_flags;
3254 out_flags = elf_elfheader (obfd)->e_flags;
3255
3256 if (! elf_flags_init (obfd))
3257 {
3258 /* If the input is the default architecture then do not
3259 bother setting the flags for the output architecture,
3260 instead allow future merges to do this. If no future
3261 merges ever set these flags then they will retain their
3262 unitialised values, which surprise surprise, correspond
3263 to the default values. */
3264 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3265 return TRUE;
c3668558 3266
b34976b6 3267 elf_flags_init (obfd) = TRUE;
252b5132
RH		 3268 elf_elfheader (obfd)->e_flags = in_flags;
3269
3270 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3271 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC		 3272 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3273 bfd_get_mach (ibfd));
252b5132 3274
b34976b6 3275 return TRUE;
252b5132
RH		 3276 }
3277
3278 /* Check flag compatibility. */
3279 if (in_flags == out_flags)
b34976b6 3280 return TRUE;
252b5132
RH		 3281
3282 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3283 {
88845958 3284 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
07d6d2b8
AM		 3285 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3286 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3287 {
4eca0228 3288 _bfd_error_handler
38f14ab8 3289 (_("%pB: instruction set mismatch with previous modules"), ibfd);
252b5132
RH		 3290
3291 bfd_set_error (bfd_error_bad_value);
b34976b6 3292 return FALSE;
252b5132
RH		 3293 }
3294 }
3295
b34976b6 3296 return TRUE;
252b5132
RH		 3297}
3298
47b0e7ad
NC		 3299/* Display the flags field. */
3300
b34976b6 3301static bfd_boolean
47b0e7ad 3302m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH		 3303{
3304 FILE * file = (FILE *) ptr;
c3668558 3305
f12123c0 3306 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3307
252b5132 3308 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3309
252b5132 3310 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3311
252b5132
RH		 3312 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3313 {
3314 default:
3315 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3316 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3317 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3318 }
c3668558 3319
252b5132 3320 fputc ('\n', file);
c3668558 3321
b34976b6 3322 return TRUE;
252b5132
RH		 3323}
3324
47b0e7ad
NC		 3325static asection *
3326m32r_elf_gc_mark_hook (asection *sec,
07adf181 3327 struct bfd_link_info *info,
47b0e7ad
NC		 3328 Elf_Internal_Rela *rel,
3329 struct elf_link_hash_entry *h,
3330 Elf_Internal_Sym *sym)
252b5132
RH		 3331{
3332 if (h != NULL)
07adf181 3333 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH		 3334 {
3335 case R_M32R_GNU_VTINHERIT:
3336 case R_M32R_GNU_VTENTRY:
6edf0760
NC		 3337 case R_M32R_RELA_GNU_VTINHERIT:
3338 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM		 3339 return NULL;
3340 }
1e2f5b6e 3341
07adf181 3342 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH		 3343}
3344
252b5132
RH		 3345/* Look through the relocs for a section during the first phase.
3346 Since we don't do .gots or .plts, we just need to consider the
3347 virtual table relocs for gc. */
c3668558 3348
b34976b6 3349static bfd_boolean
47b0e7ad
NC		 3350m32r_elf_check_relocs (bfd *abfd,
3351 struct bfd_link_info *info,
3352 asection *sec,
3353 const Elf_Internal_Rela *relocs)
252b5132
RH		 3354{
3355 Elf_Internal_Shdr *symtab_hdr;
5582a088 3356 struct elf_link_hash_entry **sym_hashes;
252b5132
RH		 3357 const Elf_Internal_Rela *rel;
3358 const Elf_Internal_Rela *rel_end;
f1dfbfdb 3359 struct elf_link_hash_table *htab;
6edf0760 3360 bfd *dynobj;
c7e2358a 3361 asection *sreloc;
c3668558 3362
0e1862bb 3363 if (bfd_link_relocatable (info))
b34976b6 3364 return TRUE;
c3668558 3365
c7e2358a 3366 sreloc = NULL;
252b5132
RH		 3367 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3368 sym_hashes = elf_sym_hashes (abfd);
c3668558 3369
6edf0760 3370 htab = m32r_elf_hash_table (info);
4dfe6ac6
NC		 3371 if (htab == NULL)
3372 return FALSE;
3373
f1dfbfdb 3374 dynobj = htab->dynobj;
6edf0760 3375
252b5132
RH		 3376 rel_end = relocs + sec->reloc_count;
3377 for (rel = relocs; rel < rel_end; rel++)
3378 {
6edf0760 3379 int r_type;
252b5132
RH		 3380 struct elf_link_hash_entry *h;
3381 unsigned long r_symndx;
c3668558 3382
252b5132 3383 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3384 r_type = ELF32_R_TYPE (rel->r_info);
252b5132 3385 if (r_symndx < symtab_hdr->sh_info)
07d6d2b8 3386 h = NULL;
252b5132 3387 else
973a3492
L		 3388 {
3389 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3390 while (h->root.type == bfd_link_hash_indirect
3391 || h->root.type == bfd_link_hash_warning)
3392 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3393 }
c3668558 3394
6edf0760 3395 /* Some relocs require a global offset table. */
f1dfbfdb 3396 if (htab->sgot == NULL)
07d6d2b8
AM		 3397 {
3398 switch (r_type)
3399 {
3400 case R_M32R_GOT16_HI_ULO:
3401 case R_M32R_GOT16_HI_SLO:
3402 case R_M32R_GOTOFF:
3403 case R_M32R_GOTOFF_HI_ULO:
3404 case R_M32R_GOTOFF_HI_SLO:
3405 case R_M32R_GOTOFF_LO:
3406 case R_M32R_GOT16_LO:
3407 case R_M32R_GOTPC24:
3408 case R_M32R_GOTPC_HI_ULO:
3409 case R_M32R_GOTPC_HI_SLO:
3410 case R_M32R_GOTPC_LO:
3411 case R_M32R_GOT24:
3412 if (dynobj == NULL)
f1dfbfdb 3413 htab->dynobj = dynobj = abfd;
07d6d2b8
AM		 3414 if (!_bfd_elf_create_got_section (dynobj, info))
3415 return FALSE;
3416 break;
3417
3418 default:
3419 break;
3420 }
3421 }
6edf0760
NC		 3422
3423 switch (r_type)
07d6d2b8 3424 {
6edf0760
NC		 3425 case R_M32R_GOT16_HI_ULO:
3426 case R_M32R_GOT16_HI_SLO:
41978308 3427 case R_M32R_GOT16_LO:
07d6d2b8
AM		 3428 case R_M32R_GOT24:
3429
3430 if (h != NULL)
3431 h->got.refcount += 1;
3432 else
3433 {
3434 bfd_signed_vma *local_got_refcounts;
3435
3436 /* This is a global offset table entry for a local
3437 symbol. */
3438 local_got_refcounts = elf_local_got_refcounts (abfd);
3439 if (local_got_refcounts == NULL)
3440 {
3441 bfd_size_type size;
3442
3443 size = symtab_hdr->sh_info;
3444 size *= sizeof (bfd_signed_vma);
3445 local_got_refcounts = bfd_zalloc (abfd, size);
3446 if (local_got_refcounts == NULL)
3447 return FALSE;
3448 elf_local_got_refcounts (abfd) = local_got_refcounts;
3449 }
3450 local_got_refcounts[r_symndx] += 1;
3451 }
3452 break;
3453
3454 case R_M32R_26_PLTREL:
3455 /* This symbol requires a procedure linkage table entry. We
3456 actually build the entry in adjust_dynamic_symbol,
3457 because this might be a case of linking PIC code without
3458 linking in any dynamic objects, in which case we don't
3459 need to generate a procedure linkage table after all. */
41978308 3460
6edf0760
NC		 3461 /* If this is a local symbol, we resolve it directly without
3462 creating a procedure linkage table entry. */
07d6d2b8
AM		 3463 if (h == NULL)
3464 continue;
6edf0760 3465
07d6d2b8
AM		 3466 if (h->forced_local)
3467 break;
6edf0760 3468
07d6d2b8 3469 h->needs_plt = 1;
6edf0760 3470 h->plt.refcount += 1;
07d6d2b8
AM		 3471 break;
3472
3473 case R_M32R_16_RELA:
3474 case R_M32R_24_RELA:
3475 case R_M32R_32_RELA:
3476 case R_M32R_REL32:
3477 case R_M32R_HI16_ULO_RELA:
3478 case R_M32R_HI16_SLO_RELA:
3479 case R_M32R_LO16_RELA:
3480 case R_M32R_SDA16_RELA:
8ce757c4 3481 case R_M32R_10_PCREL_RELA:
07d6d2b8
AM		 3482 case R_M32R_18_PCREL_RELA:
3483 case R_M32R_26_PCREL_RELA:
3484
3485 if (h != NULL && !bfd_link_pic (info))
3486 {
3487 h->non_got_ref = 1;
3488 h->plt.refcount += 1;
3489 }
3490
3491 /* If we are creating a shared library, and this is a reloc
3492 against a global symbol, or a non PC relative reloc
3493 against a local symbol, then we need to copy the reloc
3494 into the shared library. However, if we are linking with
3495 -Bsymbolic, we do not need to copy a reloc against a
3496 global symbol which is defined in an object we are
3497 including in the link (i.e., DEF_REGULAR is set). At
3498 this point we have not seen all the input files, so it is
3499 possible that DEF_REGULAR is not set now but will be set
3500 later (it is never cleared). We account for that
3501 possibility below by storing information in the
3502 dyn_relocs field of the hash table entry. A similar
3503 situation occurs when creating shared libraries and symbol
3504 visibility changes render the symbol local.
3505
3506 If on the other hand, we are creating an executable, we
3507 may need to keep relocations for symbols satisfied by a
3508 dynamic library if we manage to avoid copy relocs for the
3509 symbol. */
3510 if ((bfd_link_pic (info)
3511 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3512 && (( r_type != R_M32R_26_PCREL_RELA
07d6d2b8
AM		 3513 && r_type != R_M32R_18_PCREL_RELA
3514 && r_type != R_M32R_10_PCREL_RELA
3515 && r_type != R_M32R_REL32)
3516 || (h != NULL
6edf0760 3517 && (! info->symbolic
07d6d2b8
AM		 3518 || h->root.type == bfd_link_hash_defweak
3519 || !h->def_regular))))
3520 || (!bfd_link_pic (info)
3521 && (sec->flags & SEC_ALLOC) != 0
3522 && h != NULL
3523 && (h->root.type == bfd_link_hash_defweak
3524 || !h->def_regular)))
3525 {
3526 struct elf_dyn_relocs *p;
3527 struct elf_dyn_relocs **head;
3528
3529 if (dynobj == NULL)
f1dfbfdb 3530 htab->dynobj = dynobj = abfd;
07d6d2b8
AM		 3531
3532 /* When creating a shared object, we must copy these
3533 relocs into the output file. We create a reloc
3534 section in dynobj and make room for the reloc. */
3535 if (sreloc == NULL)
3536 {
83bac4b0
NC		 3537 sreloc = _bfd_elf_make_dynamic_reloc_section
3538 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
41978308 3539
83bac4b0
NC		 3540 if (sreloc == NULL)
3541 return FALSE;
07d6d2b8
AM		 3542 }
3543
3544 /* If this is a global symbol, we count the number of
3545 relocations we need for this symbol. */
3546 if (h != NULL)
190eb1dd 3547 head = &h->dyn_relocs;
07d6d2b8
AM		 3548 else
3549 {
3550 /* Track dynamic relocs needed for local syms too. */
3551 asection *s;
3552 void *vpp;
87d72d41 3553 Elf_Internal_Sym *isym;
6edf0760 3554
87d72d41
AM		 3555 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3556 abfd, r_symndx);
3557 if (isym == NULL)
3558 return FALSE;
3559
3560 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3561 if (s == NULL)
3562 s = sec;
6edf0760 3563
6edfbbad 3564 vpp = &elf_section_data (s)->local_dynrel;
07d6d2b8
AM		 3565 head = (struct elf_dyn_relocs **) vpp;
3566 }
3567
3568 p = *head;
3569 if (p == NULL || p->sec != sec)
3570 {
986f0783 3571 size_t amt = sizeof (*p);
07d6d2b8
AM		 3572
3573 p = bfd_alloc (dynobj, amt);
3574 if (p == NULL)
3575 return FALSE;
3576 p->next = *head;
3577 *head = p;
3578 p->sec = sec;
3579 p->count = 0;
3580 p->pc_count = 0;
3581 }
3582
3583 p->count += 1;
3584 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3585 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
8ce757c4
NC		 3586 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3587 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
07d6d2b8
AM		 3588 p->pc_count += 1;
3589 }
3590 break;
3591
3592 /* This relocation describes the C++ object vtable hierarchy.
3593 Reconstruct it for later use during GC. */
3594 case R_M32R_RELA_GNU_VTINHERIT:
3595 case R_M32R_GNU_VTINHERIT:
3596 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3597 return FALSE;
3598 break;
3599
3600 /* This relocation describes which C++ vtable entries are actually
3601 used. Record for later use during GC. */
3602 case R_M32R_GNU_VTENTRY:
a0ea3a14 3603 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
07d6d2b8
AM		 3604 return FALSE;
3605 break;
3606 case R_M32R_RELA_GNU_VTENTRY:
a0ea3a14 3607 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
07d6d2b8
AM		 3608 return FALSE;
3609 break;
3610 }
252b5132 3611 }
c3668558 3612
b34976b6 3613 return TRUE;
252b5132 3614}
2f89ff8d 3615
b35d266b 3616static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 3617{
07d6d2b8 3618 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
0112cd26 3619 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
07d6d2b8 3620 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 3621};
3622
bf577467
AM		 3623static bfd_boolean
3624m32r_elf_section_flags (const Elf_Internal_Shdr *hdr)
3625{
3626 const char *name = hdr->bfd_section->name;
3627
3628 if (strncmp (name, ".sbss", 5) == 0
3629 || strncmp (name, ".sdata", 6) == 0)
3630 hdr->bfd_section->flags |= SEC_SMALL_DATA;
3631
3632 return TRUE;
3633}
3634
6edf0760 3635static enum elf_reloc_type_class
7e612e98
AM		 3636m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3637 const asection *rel_sec ATTRIBUTE_UNUSED,
3638 const Elf_Internal_Rela *rela)
6edf0760
NC		 3639{
3640 switch ((int) ELF32_R_TYPE (rela->r_info))
3641 {
47b0e7ad
NC		 3642 case R_M32R_RELATIVE: return reloc_class_relative;
3643 case R_M32R_JMP_SLOT: return reloc_class_plt;
3644 case R_M32R_COPY: return reloc_class_copy;
07d6d2b8 3645 default: return reloc_class_normal;
6edf0760
NC		 3646 }
3647}
252b5132 3648\f
252b5132 3649#define ELF_ARCH bfd_arch_m32r
ae95ffa6 3650#define ELF_TARGET_ID M32R_ELF_DATA
aa4f99bb
AO		 3651#define ELF_MACHINE_CODE EM_M32R
3652#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 3653#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132 3654
07d6d2b8 3655#define TARGET_BIG_SYM m32r_elf32_vec
252b5132 3656#define TARGET_BIG_NAME "elf32-m32r"
07d6d2b8
AM		 3657#define TARGET_LITTLE_SYM m32r_elf32_le_vec
3658#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 3659
6edf0760 3660#define elf_info_to_howto m32r_info_to_howto
252b5132
RH		 3661#define elf_info_to_howto_rel m32r_info_to_howto_rel
3662#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
3663#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
3664#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
3665#define elf_backend_relocate_section m32r_elf_relocate_section
07d6d2b8
AM		 3666#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
3667#define elf_backend_check_relocs m32r_elf_check_relocs
252b5132 3668
07d6d2b8
AM		 3669#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
3670#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
3671#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
d00dd7dc 3672#define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
07d6d2b8
AM		 3673#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
3674#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
3675#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
3676#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
6edf0760 3677
07d6d2b8 3678#define elf_backend_can_gc_sections 1
6edf0760 3679/*#if !USE_REL
b491616a 3680#define elf_backend_rela_normal 1
6edf0760
NC		 3681#endif*/
3682#define elf_backend_can_refcount 1
3683#define elf_backend_want_got_plt 1
3684#define elf_backend_plt_readonly 1
3685#define elf_backend_want_plt_sym 0
3686#define elf_backend_got_header_size 12
64f52338 3687#define elf_backend_dtrel_excludes_plt 1
6edf0760 3688
07d6d2b8 3689#define elf_backend_may_use_rel_p 1
6edf0760 3690#ifdef USE_M32R_OLD_RELOC
07d6d2b8
AM		 3691#define elf_backend_default_use_rela_p 0
3692#define elf_backend_may_use_rela_p 0
6edf0760 3693#else
07d6d2b8
AM		 3694#define elf_backend_default_use_rela_p 1
3695#define elf_backend_may_use_rela_p 1
b491616a 3696#endif
6edf0760 3697
252b5132 3698#define elf_backend_object_p m32r_elf_object_p
07d6d2b8
AM		 3699#define elf_backend_final_write_processing m32r_elf_final_write_processing
3700#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
252b5132
RH		 3701#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
3702#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 3703#define elf_backend_special_sections m32r_elf_special_sections
bf577467 3704#define elf_backend_section_flags m32r_elf_section_flags
c3668558 3705
a2f63b2e
MR		 3706#define elf_backend_linux_prpsinfo32_ugid16 TRUE
3707
252b5132 3708#include "elf32-target.h"
6edf0760 3709
07d6d2b8
AM		 3710#undef ELF_MAXPAGESIZE
3711#define ELF_MAXPAGESIZE 0x1000
3712
3713#undef TARGET_BIG_SYM
3714#define TARGET_BIG_SYM m32r_elf32_linux_vec
3715#undef TARGET_BIG_NAME
3716#define TARGET_BIG_NAME "elf32-m32r-linux"
3717#undef TARGET_LITTLE_SYM
3718#define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
3719#undef TARGET_LITTLE_NAME
3720#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
3721#undef elf32_bed
3722#define elf32_bed elf32_m32r_lin_bed
6edf0760
NC		 3723
3724#include "elf32-target.h"
GDB Binutils - Deliverables
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