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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.
22d606e9 2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
ab96bf03 3 2006, 2007 Free Software Foundation, Inc.
252b5132 4
88845958 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
88845958
NC		 7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
252b5132 11
88845958
NC		 12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
252b5132 16
88845958
NC		 17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
3e110533 19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132 20
252b5132 21#include "sysdep.h"
3db64b00 22#include "bfd.h"
252b5132
RH		 23#include "libbfd.h"
24#include "elf-bfd.h"
25#include "elf/m32r.h"
26
252b5132
RH		 27#define NOP_INSN 0x7000
28#define MAKE_PARALLEL(insn) ((insn) | 0x8000)
29
30/* Use REL instead of RELA to save space.
31 This only saves space in libraries and object files, but perhaps
32 relocs will be put in ROM? All in all though, REL relocs are a pain
33 to work with. */
6edf0760 34/* #define USE_REL 1
acf8aed4
AM		 35
36#ifndef USE_REL
37#define USE_REL 0
6edf0760 38#endif */
47b0e7ad 39/* Use RELA. But use REL to link old objects for backwords compatibility. */
6edf0760
NC		 40
41/* Functions for the M32R ELF linker. */
41978308 42
6edf0760
NC		 43/* The name of the dynamic interpreter. This is put in the .interp
44 section. */
41978308 45
6edf0760 46#define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
41978308 47
6edf0760 48/* The nop opcode we use. */
41978308 49
6edf0760 50#define M32R_NOP 0x7000f000
41978308 51
6edf0760 52#define PLT_EMPTY 0x10101010 /* RIE -> RIE */
41978308 53
6edf0760
NC		 54/* The size in bytes of an entry in the procedure linkage table. */
55
56#define PLT_ENTRY_SIZE 20
57#define PLT_HEADER_SIZE 20
41978308 58
6edf0760
NC		 59/* The first one entries in a procedure linkage table are reserved,
60 and the initial contents are unimportant (we zero them out).
61 Subsequent entries look like this. */
41978308 62
6edf0760
NC		 63#define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
64#define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
65#define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
66#define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
67#define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 68
6edf0760
NC		 69#define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
70#define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
71#define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
72#define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
73#define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
41978308 74
6edf0760
NC		 75#define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
76#define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
77#define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
78#define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
79#define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
80#define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
81#define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
82
252b5132 83
47b0e7ad 84/* Utility to actually perform an R_M32R_10_PCREL reloc. */
252b5132 85
47b0e7ad
NC		 86static bfd_reloc_status_type
87m32r_elf_do_10_pcrel_reloc (bfd *abfd,
88 reloc_howto_type *howto,
89 asection *input_section,
90 bfd_byte *data,
91 bfd_vma offset,
92 asection *symbol_section ATTRIBUTE_UNUSED,
93 bfd_vma symbol_value,
94 bfd_vma addend)
95{
96 bfd_signed_vma relocation;
97 unsigned long x;
98 bfd_reloc_status_type status;
252b5132 99
47b0e7ad
NC		 100 /* Sanity check the address (offset in section). */
101 if (offset > bfd_get_section_limit (abfd, input_section))
102 return bfd_reloc_outofrange;
252b5132 103
47b0e7ad
NC		 104 relocation = symbol_value + addend;
105 /* Make it pc relative. */
106 relocation -= (input_section->output_section->vma
107 + input_section->output_offset);
108 /* These jumps mask off the lower two bits of the current address
109 before doing pcrel calculations. */
110 relocation -= (offset & -(bfd_vma) 4);
252b5132 111
47b0e7ad
NC		 112 if (relocation < -0x200 || relocation > 0x1ff)
113 status = bfd_reloc_overflow;
114 else
115 status = bfd_reloc_ok;
252b5132 116
47b0e7ad
NC		 117 x = bfd_get_16 (abfd, data + offset);
118 relocation >>= howto->rightshift;
119 relocation <<= howto->bitpos;
120 x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
121 bfd_put_16 (abfd, (bfd_vma) x, data + offset);
252b5132 122
47b0e7ad
NC		 123 return status;
124}
252b5132 125
47b0e7ad 126/* Handle the R_M32R_10_PCREL reloc. */
252b5132 127
47b0e7ad
NC		 128static bfd_reloc_status_type
129m32r_elf_10_pcrel_reloc (bfd * abfd,
130 arelent * reloc_entry,
131 asymbol * symbol,
132 void * data,
133 asection * input_section,
134 bfd * output_bfd,
135 char ** error_message ATTRIBUTE_UNUSED)
136{
137 /* This part is from bfd_elf_generic_reloc. */
138 if (output_bfd != NULL
139 && (symbol->flags & BSF_SECTION_SYM) == 0
140 && (! reloc_entry->howto->partial_inplace
141 || reloc_entry->addend == 0))
142 {
143 reloc_entry->address += input_section->output_offset;
144 return bfd_reloc_ok;
145 }
252b5132 146
47b0e7ad
NC		 147 if (output_bfd != NULL)
148 /* FIXME: See bfd_perform_relocation. Is this right? */
149 return bfd_reloc_continue;
252b5132 150
47b0e7ad
NC		 151 return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
152 input_section,
153 data, reloc_entry->address,
154 symbol->section,
155 (symbol->value
156 + symbol->section->output_section->vma
157 + symbol->section->output_offset),
158 reloc_entry->addend);
159}
252b5132 160
47b0e7ad
NC		 161/* Do generic partial_inplace relocation.
162 This is a local replacement for bfd_elf_generic_reloc. */
252b5132 163
47b0e7ad
NC		 164static bfd_reloc_status_type
165m32r_elf_generic_reloc (bfd *input_bfd,
166 arelent *reloc_entry,
167 asymbol *symbol,
168 void * data,
169 asection *input_section,
170 bfd *output_bfd,
171 char **error_message ATTRIBUTE_UNUSED)
172{
173 bfd_reloc_status_type ret;
174 bfd_vma relocation;
175 bfd_byte *inplace_address;
252b5132 176
47b0e7ad
NC		 177 /* This part is from bfd_elf_generic_reloc.
178 If we're relocating, and this an external symbol, we don't want
179 to change anything. */
180 if (output_bfd != NULL
181 && (symbol->flags & BSF_SECTION_SYM) == 0
182 && reloc_entry->addend == 0)
183 {
184 reloc_entry->address += input_section->output_offset;
185 return bfd_reloc_ok;
186 }
6edf0760 187
47b0e7ad
NC		 188 /* Now do the reloc in the usual way.
189 ??? It would be nice to call bfd_elf_generic_reloc here,
190 but we have partial_inplace set. bfd_elf_generic_reloc will
191 pass the handling back to bfd_install_relocation which will install
192 a section relative addend which is wrong. */
6edf0760 193
47b0e7ad
NC		 194 /* Sanity check the address (offset in section). */
195 if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
196 return bfd_reloc_outofrange;
6edf0760 197
47b0e7ad
NC		 198 ret = bfd_reloc_ok;
199 if (bfd_is_und_section (symbol->section)
200 && output_bfd == NULL)
201 ret = bfd_reloc_undefined;
6edf0760 202
47b0e7ad
NC		 203 if (bfd_is_com_section (symbol->section)
204 || output_bfd != NULL)
205 relocation = 0;
206 else
207 relocation = symbol->value;
6edf0760 208
47b0e7ad
NC		 209 /* Only do this for a final link. */
210 if (output_bfd == NULL)
211 {
212 relocation += symbol->section->output_section->vma;
213 relocation += symbol->section->output_offset;
214 }
6edf0760 215
47b0e7ad
NC		 216 relocation += reloc_entry->addend;
217 inplace_address = (bfd_byte *) data + reloc_entry->address;
6edf0760 218
47b0e7ad
NC		 219#define DOIT(x) \
220 x = ( (x & ~reloc_entry->howto->dst_mask) | \
221 (((x & reloc_entry->howto->src_mask) + relocation) & \
222 reloc_entry->howto->dst_mask))
6edf0760 223
47b0e7ad
NC		 224 switch (reloc_entry->howto->size)
225 {
226 case 1:
227 {
228 short x = bfd_get_16 (input_bfd, inplace_address);
229 DOIT (x);
230 bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
231 }
232 break;
233 case 2:
234 {
235 unsigned long x = bfd_get_32 (input_bfd, inplace_address);
236 DOIT (x);
237 bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
238 }
239 break;
240 default:
241 BFD_ASSERT (0);
242 }
6edf0760 243
47b0e7ad
NC		 244 if (output_bfd != NULL)
245 reloc_entry->address += input_section->output_offset;
6edf0760 246
47b0e7ad
NC		 247 return ret;
248}
6edf0760 249
47b0e7ad
NC		 250/* Handle the R_M32R_SDA16 reloc.
251 This reloc is used to compute the address of objects in the small data area
252 and to perform loads and stores from that area.
253 The lower 16 bits are sign extended and added to the register specified
254 in the instruction, which is assumed to point to _SDA_BASE_. */
6edf0760 255
47b0e7ad
NC		 256static bfd_reloc_status_type
257m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
258 arelent *reloc_entry,
259 asymbol *symbol,
260 void * data ATTRIBUTE_UNUSED,
261 asection *input_section,
262 bfd *output_bfd,
263 char **error_message ATTRIBUTE_UNUSED)
264{
265 /* This part is from bfd_elf_generic_reloc. */
266 if (output_bfd != NULL
267 && (symbol->flags & BSF_SECTION_SYM) == 0
268 && (! reloc_entry->howto->partial_inplace
269 || reloc_entry->addend == 0))
270 {
271 reloc_entry->address += input_section->output_offset;
272 return bfd_reloc_ok;
273 }
6edf0760 274
47b0e7ad
NC		 275 if (output_bfd != NULL)
276 /* FIXME: See bfd_perform_relocation. Is this right? */
277 return bfd_reloc_continue;
6edf0760 278
47b0e7ad
NC		 279 /* FIXME: not sure what to do here yet. But then again, the linker
280 may never call us. */
281 abort ();
282}
6edf0760 283
47b0e7ad
NC		 284\f
285/* Handle the R_M32R_HI16_[SU]LO relocs.
286 HI16_SLO is for the add3 and load/store with displacement instructions.
287 HI16_ULO is for the or3 instruction.
288 For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
289 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
290 we must add one to the high 16 bytes (which will get subtracted off when
291 the low 16 bits are added).
292 These relocs have to be done in combination with an R_M32R_LO16 reloc
293 because there is a carry from the LO16 to the HI16. Here we just save
294 the information we need; we do the actual relocation when we see the LO16.
295 This code is copied from the elf32-mips.c. We also support an arbitrary
296 number of HI16 relocs to be associated with a single LO16 reloc. The
297 assembler sorts the relocs to ensure each HI16 immediately precedes its
298 LO16. However if there are multiple copies, the assembler may not find
299 the real LO16 so it picks the first one it finds. */
6edf0760 300
47b0e7ad
NC		 301struct m32r_hi16
302{
303 struct m32r_hi16 *next;
304 bfd_byte *addr;
305 bfd_vma addend;
306};
307
308/* FIXME: This should not be a static variable. */
309
310static struct m32r_hi16 *m32r_hi16_list;
311
312static bfd_reloc_status_type
313m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
314 arelent *reloc_entry,
315 asymbol *symbol,
316 void * data,
317 asection *input_section,
318 bfd *output_bfd,
319 char **error_message ATTRIBUTE_UNUSED)
320{
321 bfd_reloc_status_type ret;
322 bfd_vma relocation;
323 struct m32r_hi16 *n;
324
325 /* This part is from bfd_elf_generic_reloc.
326 If we're relocating, and this an external symbol, we don't want
327 to change anything. */
328 if (output_bfd != NULL
329 && (symbol->flags & BSF_SECTION_SYM) == 0
330 && reloc_entry->addend == 0)
331 {
332 reloc_entry->address += input_section->output_offset;
333 return bfd_reloc_ok;
334 }
335
336 /* Sanity check the address (offset in section). */
337 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
338 return bfd_reloc_outofrange;
339
340 ret = bfd_reloc_ok;
341 if (bfd_is_und_section (symbol->section)
342 && output_bfd == NULL)
343 ret = bfd_reloc_undefined;
344
345 if (bfd_is_com_section (symbol->section))
346 relocation = 0;
347 else
348 relocation = symbol->value;
349
350 relocation += symbol->section->output_section->vma;
351 relocation += symbol->section->output_offset;
352 relocation += reloc_entry->addend;
353
354 /* Save the information, and let LO16 do the actual relocation. */
355 n = bfd_malloc ((bfd_size_type) sizeof *n);
356 if (n == NULL)
357 return bfd_reloc_outofrange;
358 n->addr = (bfd_byte *) data + reloc_entry->address;
359 n->addend = relocation;
360 n->next = m32r_hi16_list;
361 m32r_hi16_list = n;
362
363 if (output_bfd != NULL)
364 reloc_entry->address += input_section->output_offset;
365
366 return ret;
367}
368
369/* Handle an M32R ELF HI16 reloc. */
370
371static void
372m32r_elf_relocate_hi16 (bfd *input_bfd,
373 int type,
374 Elf_Internal_Rela *relhi,
375 Elf_Internal_Rela *rello,
376 bfd_byte *contents,
377 bfd_vma addend)
378{
379 unsigned long insn;
380 bfd_vma addlo;
381
382 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
383
384 addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
385 if (type == R_M32R_HI16_SLO)
386 addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
387 else
388 addlo &= 0xffff;
389
390 addend += ((insn & 0xffff) << 16) + addlo;
391
392 /* Reaccount for sign extension of low part. */
393 if (type == R_M32R_HI16_SLO
394 && (addend & 0x8000) != 0)
395 addend += 0x10000;
396
397 bfd_put_32 (input_bfd,
398 (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
399 contents + relhi->r_offset);
400}
401
402/* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
403 inplace relocation; this function exists in order to do the
404 R_M32R_HI16_[SU]LO relocation described above. */
405
406static bfd_reloc_status_type
407m32r_elf_lo16_reloc (bfd *input_bfd,
408 arelent *reloc_entry,
409 asymbol *symbol,
410 void * data,
411 asection *input_section,
412 bfd *output_bfd,
413 char **error_message)
414{
415 /* This part is from bfd_elf_generic_reloc.
416 If we're relocating, and this an external symbol, we don't want
417 to change anything. */
418 if (output_bfd != NULL
419 && (symbol->flags & BSF_SECTION_SYM) == 0
420 && reloc_entry->addend == 0)
421 {
422 reloc_entry->address += input_section->output_offset;
423 return bfd_reloc_ok;
424 }
425
426 if (m32r_hi16_list != NULL)
427 {
428 struct m32r_hi16 *l;
429
430 l = m32r_hi16_list;
431 while (l != NULL)
432 {
433 unsigned long insn;
434 unsigned long val;
435 unsigned long vallo;
436 struct m32r_hi16 *next;
437
438 /* Do the HI16 relocation. Note that we actually don't need
439 to know anything about the LO16 itself, except where to
440 find the low 16 bits of the addend needed by the LO16. */
441 insn = bfd_get_32 (input_bfd, l->addr);
442 vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
443 & 0xffff) ^ 0x8000) - 0x8000;
444 val = ((insn & 0xffff) << 16) + vallo;
445 val += l->addend;
446
447 /* Reaccount for sign extension of low part. */
448 if ((val & 0x8000) != 0)
449 val += 0x10000;
450
451 insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
452 bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
453
454 next = l->next;
455 free (l);
456 l = next;
457 }
6edf0760 458
47b0e7ad
NC		 459 m32r_hi16_list = NULL;
460 }
461
462 /* Now do the LO16 reloc in the usual way.
463 ??? It would be nice to call bfd_elf_generic_reloc here,
464 but we have partial_inplace set. bfd_elf_generic_reloc will
465 pass the handling back to bfd_install_relocation which will install
466 a section relative addend which is wrong. */
467 return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
468 input_section, output_bfd, error_message);
469}
470
471\f
472static reloc_howto_type m32r_elf_howto_table[] =
473{
474 /* This reloc does nothing. */
475 HOWTO (R_M32R_NONE, /* type */
6edf0760
NC		 476 0, /* rightshift */
477 2, /* size (0 = byte, 1 = short, 2 = long) */
478 32, /* bitsize */
479 FALSE, /* pc_relative */
480 0, /* bitpos */
481 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC		 482 bfd_elf_generic_reloc, /* special_function */
483 "R_M32R_NONE", /* name */
6edf0760 484 FALSE, /* partial_inplace */
47b0e7ad
NC		 485 0, /* src_mask */
486 0, /* dst_mask */
6edf0760
NC		 487 FALSE), /* pcrel_offset */
488
47b0e7ad
NC		 489 /* A 16 bit absolute relocation. */
490 HOWTO (R_M32R_16, /* type */
6edf0760 491 0, /* rightshift */
47b0e7ad
NC		 492 1, /* size (0 = byte, 1 = short, 2 = long) */
493 16, /* bitsize */
6edf0760
NC		 494 FALSE, /* pc_relative */
495 0, /* bitpos */
496 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC		 497 m32r_elf_generic_reloc,/* special_function */
498 "R_M32R_16", /* name */
499 TRUE, /* partial_inplace */
500 0xffff, /* src_mask */
501 0xffff, /* dst_mask */
6edf0760
NC		 502 FALSE), /* pcrel_offset */
503
47b0e7ad
NC		 504 /* A 32 bit absolute relocation. */
505 HOWTO (R_M32R_32, /* type */
6edf0760
NC		 506 0, /* rightshift */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
508 32, /* bitsize */
509 FALSE, /* pc_relative */
510 0, /* bitpos */
511 complain_overflow_bitfield, /* complain_on_overflow */
47b0e7ad
NC		 512 m32r_elf_generic_reloc,/* special_function */
513 "R_M32R_32", /* name */
514 TRUE, /* partial_inplace */
6edf0760
NC		 515 0xffffffff, /* src_mask */
516 0xffffffff, /* dst_mask */
517 FALSE), /* pcrel_offset */
518
47b0e7ad
NC		 519 /* A 24 bit address. */
520 HOWTO (R_M32R_24, /* type */
6edf0760
NC		 521 0, /* rightshift */
522 2, /* size (0 = byte, 1 = short, 2 = long) */
097f809a 523 24, /* bitsize */
6edf0760
NC		 524 FALSE, /* pc_relative */
525 0, /* bitpos */
47b0e7ad
NC		 526 complain_overflow_unsigned, /* complain_on_overflow */
527 m32r_elf_generic_reloc,/* special_function */
528 "R_M32R_24", /* name */
529 TRUE, /* partial_inplace */
097f809a
NC		 530 0xffffff, /* src_mask */
531 0xffffff, /* dst_mask */
6edf0760
NC		 532 FALSE), /* pcrel_offset */
533
47b0e7ad
NC		 534 /* An PC Relative 10-bit relocation, shifted by 2.
535 This reloc is complicated because relocations are relative to pc & -4.
536 i.e. branches in the right insn slot use the address of the left insn
537 slot for pc. */
538 /* ??? It's not clear whether this should have partial_inplace set or not.
539 Branch relaxing in the assembler can store the addend in the insn,
540 and if bfd_install_relocation gets called the addend may get added
541 again. */
542 HOWTO (R_M32R_10_PCREL, /* type */
543 2, /* rightshift */
544 1, /* size (0 = byte, 1 = short, 2 = long) */
545 10, /* bitsize */
546 TRUE, /* pc_relative */
547 0, /* bitpos */
548 complain_overflow_signed, /* complain_on_overflow */
549 m32r_elf_10_pcrel_reloc, /* special_function */
550 "R_M32R_10_PCREL", /* name */
551 FALSE, /* partial_inplace */
552 0xff, /* src_mask */
553 0xff, /* dst_mask */
6edf0760
NC		 554 TRUE), /* pcrel_offset */
555
47b0e7ad
NC		 556 /* A relative 18 bit relocation, right shifted by 2. */
557 HOWTO (R_M32R_18_PCREL, /* type */
558 2, /* rightshift */
6edf0760
NC		 559 2, /* size (0 = byte, 1 = short, 2 = long) */
560 16, /* bitsize */
47b0e7ad 561 TRUE, /* pc_relative */
6edf0760 562 0, /* bitpos */
47b0e7ad 563 complain_overflow_signed, /* complain_on_overflow */
6edf0760 564 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 565 "R_M32R_18_PCREL", /* name */
6edf0760 566 FALSE, /* partial_inplace */
47b0e7ad
NC		 567 0xffff, /* src_mask */
568 0xffff, /* dst_mask */
569 TRUE), /* pcrel_offset */
6edf0760 570
47b0e7ad
NC		 571 /* A relative 26 bit relocation, right shifted by 2. */
572 /* ??? It's not clear whether this should have partial_inplace set or not.
573 Branch relaxing in the assembler can store the addend in the insn,
574 and if bfd_install_relocation gets called the addend may get added
575 again. */
576 HOWTO (R_M32R_26_PCREL, /* type */
577 2, /* rightshift */
6edf0760 578 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad
NC		 579 26, /* bitsize */
580 TRUE, /* pc_relative */
6edf0760 581 0, /* bitpos */
47b0e7ad 582 complain_overflow_signed, /* complain_on_overflow */
6edf0760 583 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 584 "R_M32R_26_PCREL", /* name */
6edf0760 585 FALSE, /* partial_inplace */
47b0e7ad
NC		 586 0xffffff, /* src_mask */
587 0xffffff, /* dst_mask */
588 TRUE), /* pcrel_offset */
6edf0760 589
47b0e7ad
NC		 590 /* High 16 bits of address when lower 16 is or'd in. */
591 HOWTO (R_M32R_HI16_ULO, /* type */
592 16, /* rightshift */
6edf0760
NC		 593 2, /* size (0 = byte, 1 = short, 2 = long) */
594 16, /* bitsize */
595 FALSE, /* pc_relative */
596 0, /* bitpos */
597 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 598 m32r_elf_hi16_reloc, /* special_function */
599 "R_M32R_HI16_ULO", /* name */
600 TRUE, /* partial_inplace */
6edf0760
NC		 601 0x0000ffff, /* src_mask */
602 0x0000ffff, /* dst_mask */
603 FALSE), /* pcrel_offset */
604
47b0e7ad
NC		 605 /* High 16 bits of address when lower 16 is added in. */
606 HOWTO (R_M32R_HI16_SLO, /* type */
6edf0760
NC		 607 16, /* rightshift */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
609 16, /* bitsize */
610 FALSE, /* pc_relative */
611 0, /* bitpos */
612 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 613 m32r_elf_hi16_reloc, /* special_function */
614 "R_M32R_HI16_SLO", /* name */
615 TRUE, /* partial_inplace */
6edf0760
NC		 616 0x0000ffff, /* src_mask */
617 0x0000ffff, /* dst_mask */
47b0e7ad 618 FALSE), /* pcrel_offset */
6edf0760 619
47b0e7ad
NC		 620 /* Lower 16 bits of address. */
621 HOWTO (R_M32R_LO16, /* type */
622 0, /* rightshift */
6edf0760
NC		 623 2, /* size (0 = byte, 1 = short, 2 = long) */
624 16, /* bitsize */
625 FALSE, /* pc_relative */
626 0, /* bitpos */
627 complain_overflow_dont, /* complain_on_overflow */
47b0e7ad
NC		 628 m32r_elf_lo16_reloc, /* special_function */
629 "R_M32R_LO16", /* name */
630 TRUE, /* partial_inplace */
6edf0760
NC		 631 0x0000ffff, /* src_mask */
632 0x0000ffff, /* dst_mask */
47b0e7ad 633 FALSE), /* pcrel_offset */
6edf0760 634
47b0e7ad
NC		 635 /* Small data area 16 bits offset. */
636 HOWTO (R_M32R_SDA16, /* type */
6edf0760
NC		 637 0, /* rightshift */
638 2, /* size (0 = byte, 1 = short, 2 = long) */
639 16, /* bitsize */
640 FALSE, /* pc_relative */
641 0, /* bitpos */
47b0e7ad
NC		 642 complain_overflow_signed, /* complain_on_overflow */
643 m32r_elf_sda16_reloc, /* special_function */
644 "R_M32R_SDA16", /* name */
645 TRUE, /* partial_inplace */ /* FIXME: correct? */
6edf0760
NC		 646 0x0000ffff, /* src_mask */
647 0x0000ffff, /* dst_mask */
47b0e7ad 648 FALSE), /* pcrel_offset */
097f809a 649
47b0e7ad
NC		 650 /* GNU extension to record C++ vtable hierarchy. */
651 HOWTO (R_M32R_GNU_VTINHERIT, /* type */
652 0, /* rightshift */
653 2, /* size (0 = byte, 1 = short, 2 = long) */
654 0, /* bitsize */
655 FALSE, /* pc_relative */
656 0, /* bitpos */
657 complain_overflow_dont, /* complain_on_overflow */
658 NULL, /* special_function */
659 "R_M32R_GNU_VTINHERIT", /* name */
660 FALSE, /* partial_inplace */
661 0, /* src_mask */
662 0, /* dst_mask */
663 FALSE), /* pcrel_offset */
664
665 /* GNU extension to record C++ vtable member usage. */
666 HOWTO (R_M32R_GNU_VTENTRY, /* type */
667 0, /* rightshift */
668 2, /* size (0 = byte, 1 = short, 2 = long) */
669 0, /* bitsize */
670 FALSE, /* pc_relative */
671 0, /* bitpos */
672 complain_overflow_dont, /* complain_on_overflow */
673 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
674 "R_M32R_GNU_VTENTRY", /* name */
675 FALSE, /* partial_inplace */
676 0, /* src_mask */
677 0, /* dst_mask */
678 FALSE), /* pcrel_offset */
679
680 EMPTY_HOWTO (13),
681 EMPTY_HOWTO (14),
682 EMPTY_HOWTO (15),
683 EMPTY_HOWTO (16),
684 EMPTY_HOWTO (17),
685 EMPTY_HOWTO (18),
686 EMPTY_HOWTO (19),
687 EMPTY_HOWTO (20),
688 EMPTY_HOWTO (21),
689 EMPTY_HOWTO (22),
690 EMPTY_HOWTO (23),
691 EMPTY_HOWTO (24),
692 EMPTY_HOWTO (25),
693 EMPTY_HOWTO (26),
694 EMPTY_HOWTO (27),
695 EMPTY_HOWTO (28),
696 EMPTY_HOWTO (29),
697 EMPTY_HOWTO (30),
698 EMPTY_HOWTO (31),
699 EMPTY_HOWTO (32),
700
701 /* A 16 bit absolute relocation. */
702 HOWTO (R_M32R_16_RELA, /* type */
703 0, /* rightshift */
704 1, /* size (0 = byte, 1 = short, 2 = long) */
097f809a
NC		 705 16, /* bitsize */
706 FALSE, /* pc_relative */
707 0, /* bitpos */
47b0e7ad 708 complain_overflow_bitfield, /* complain_on_overflow */
097f809a 709 bfd_elf_generic_reloc, /* special_function */
47b0e7ad 710 "R_M32R_16_RELA", /* name */
097f809a 711 FALSE, /* partial_inplace */
47b0e7ad
NC		 712 0xffff, /* src_mask */
713 0xffff, /* dst_mask */
097f809a
NC		 714 FALSE), /* pcrel_offset */
715
47b0e7ad
NC		 716 /* A 32 bit absolute relocation. */
717 HOWTO (R_M32R_32_RELA, /* type */
718 0, /* rightshift */
097f809a 719 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 720 32, /* bitsize */
097f809a
NC		 721 FALSE, /* pc_relative */
722 0, /* bitpos */
47b0e7ad
NC		 723 complain_overflow_bitfield, /* complain_on_overflow */
724 bfd_elf_generic_reloc,/* special_function */
725 "R_M32R_32_RELA", /* name */
097f809a 726 FALSE, /* partial_inplace */
47b0e7ad
NC		 727 0xffffffff, /* src_mask */
728 0xffffffff, /* dst_mask */
097f809a
NC		 729 FALSE), /* pcrel_offset */
730
47b0e7ad
NC		 731 /* A 24 bit address. */
732 HOWTO (R_M32R_24_RELA, /* type */
097f809a
NC		 733 0, /* rightshift */
734 2, /* size (0 = byte, 1 = short, 2 = long) */
47b0e7ad 735 24, /* bitsize */
097f809a
NC		 736 FALSE, /* pc_relative */
737 0, /* bitpos */
47b0e7ad
NC		 738 complain_overflow_unsigned, /* complain_on_overflow */
739 bfd_elf_generic_reloc,/* special_function */
740 "R_M32R_24_RELA", /* name */
097f809a 741 FALSE, /* partial_inplace */
47b0e7ad
NC		 742 0xffffff, /* src_mask */
743 0xffffff, /* dst_mask */
097f809a 744 FALSE), /* pcrel_offset */
252b5132 745
47b0e7ad
NC		 746 HOWTO (R_M32R_10_PCREL_RELA, /* type */
747 2, /* rightshift */
748 1, /* size (0 = byte, 1 = short, 2 = long) */
749 10, /* bitsize */
750 TRUE, /* pc_relative */
751 0, /* bitpos */
752 complain_overflow_signed, /* complain_on_overflow */
753 m32r_elf_10_pcrel_reloc, /* special_function */
754 "R_M32R_10_PCREL_RELA",/* name */
755 FALSE, /* partial_inplace */
756 0xff, /* src_mask */
757 0xff, /* dst_mask */
758 TRUE), /* pcrel_offset */
252b5132 759
47b0e7ad
NC		 760 /* A relative 18 bit relocation, right shifted by 2. */
761 HOWTO (R_M32R_18_PCREL_RELA, /* type */
762 2, /* rightshift */
763 2, /* size (0 = byte, 1 = short, 2 = long) */
764 16, /* bitsize */
765 TRUE, /* pc_relative */
766 0, /* bitpos */
767 complain_overflow_signed, /* complain_on_overflow */
768 bfd_elf_generic_reloc, /* special_function */
769 "R_M32R_18_PCREL_RELA",/* name */
770 FALSE, /* partial_inplace */
771 0xffff, /* src_mask */
772 0xffff, /* dst_mask */
773 TRUE), /* pcrel_offset */
252b5132 774
47b0e7ad
NC		 775 /* A relative 26 bit relocation, right shifted by 2. */
776 HOWTO (R_M32R_26_PCREL_RELA, /* type */
777 2, /* rightshift */
778 2, /* size (0 = byte, 1 = short, 2 = long) */
779 26, /* bitsize */
780 TRUE, /* pc_relative */
781 0, /* bitpos */
782 complain_overflow_signed, /* complain_on_overflow */
783 bfd_elf_generic_reloc, /* special_function */
784 "R_M32R_26_PCREL_RELA",/* name */
785 FALSE, /* partial_inplace */
786 0xffffff, /* src_mask */
787 0xffffff, /* dst_mask */
788 TRUE), /* pcrel_offset */
4c72e23a 789
47b0e7ad
NC		 790 /* High 16 bits of address when lower 16 is or'd in. */
791 HOWTO (R_M32R_HI16_ULO_RELA, /* type */
792 16, /* rightshift */
793 2, /* size (0 = byte, 1 = short, 2 = long) */
794 16, /* bitsize */
795 FALSE, /* pc_relative */
796 0, /* bitpos */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_M32R_HI16_ULO_RELA",/* name */
800 FALSE, /* partial_inplace */
801 0x0000ffff, /* src_mask */
802 0x0000ffff, /* dst_mask */
803 FALSE), /* pcrel_offset */
252b5132 804
47b0e7ad
NC		 805 /* High 16 bits of address when lower 16 is added in. */
806 HOWTO (R_M32R_HI16_SLO_RELA, /* type */
807 16, /* rightshift */
808 2, /* size (0 = byte, 1 = short, 2 = long) */
809 16, /* bitsize */
810 FALSE, /* pc_relative */
811 0, /* bitpos */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
814 "R_M32R_HI16_SLO_RELA",/* name */
815 FALSE, /* partial_inplace */
816 0x0000ffff, /* src_mask */
817 0x0000ffff, /* dst_mask */
818 FALSE), /* pcrel_offset */
252b5132 819
47b0e7ad
NC		 820 /* Lower 16 bits of address. */
821 HOWTO (R_M32R_LO16_RELA, /* type */
822 0, /* rightshift */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
824 16, /* bitsize */
825 FALSE, /* pc_relative */
826 0, /* bitpos */
827 complain_overflow_dont, /* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_M32R_LO16_RELA", /* name */
830 FALSE, /* partial_inplace */
831 0x0000ffff, /* src_mask */
832 0x0000ffff, /* dst_mask */
833 FALSE), /* pcrel_offset */
252b5132 834
47b0e7ad
NC		 835 /* Small data area 16 bits offset. */
836 HOWTO (R_M32R_SDA16_RELA, /* type */
837 0, /* rightshift */
838 2, /* size (0 = byte, 1 = short, 2 = long) */
839 16, /* bitsize */
840 FALSE, /* pc_relative */
841 0, /* bitpos */
842 complain_overflow_signed, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* special_function */
844 "R_M32R_SDA16_RELA", /* name */
845 TRUE, /* partial_inplace */ /* FIXME: correct? */
846 0x0000ffff, /* src_mask */
847 0x0000ffff, /* dst_mask */
848 FALSE), /* pcrel_offset */
252b5132 849
47b0e7ad
NC		 850 /* GNU extension to record C++ vtable hierarchy. */
851 HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
852 0, /* rightshift */
853 2, /* size (0 = byte, 1 = short, 2 = long) */
854 0, /* bitsize */
855 FALSE, /* pc_relative */
856 0, /* bitpos */
857 complain_overflow_dont, /* complain_on_overflow */
858 NULL, /* special_function */
859 "R_M32R_RELA_GNU_VTINHERIT", /* name */
860 FALSE, /* partial_inplace */
861 0, /* src_mask */
862 0, /* dst_mask */
863 FALSE), /* pcrel_offset */
252b5132 864
47b0e7ad
NC		 865 /* GNU extension to record C++ vtable member usage. */
866 HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
867 0, /* rightshift */
868 2, /* size (0 = byte, 1 = short, 2 = long) */
869 0, /* bitsize */
870 FALSE, /* pc_relative */
871 0, /* bitpos */
872 complain_overflow_dont, /* complain_on_overflow */
873 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
874 "R_M32R_RELA_GNU_VTENTRY", /* name */
875 FALSE, /* partial_inplace */
876 0, /* src_mask */
877 0, /* dst_mask */
878 FALSE), /* pcrel_offset */
252b5132 879
157e7bd1
NC		 880 /* A 32 bit PC relative relocation. */
881 HOWTO (R_M32R_REL32, /* type */
882 0, /* rightshift */
883 2, /* size (0 = byte, 1 = short, 2 = long) */
884 32, /* bitsize */
885 TRUE, /* pc_relative */
886 0, /* bitpos */
887 complain_overflow_bitfield, /* complain_on_overflow */
888 bfd_elf_generic_reloc,/* special_function */
889 "R_M32R_REL32", /* name */
890 FALSE, /* partial_inplace */
891 0xffffffff, /* src_mask */
892 0xffffffff, /* dst_mask */
893 TRUE), /* pcrel_offset */
894
47b0e7ad
NC		 895 EMPTY_HOWTO (46),
896 EMPTY_HOWTO (47),
252b5132 897
47b0e7ad
NC		 898 /* Like R_M32R_24, but referring to the GOT table entry for
899 the symbol. */
900 HOWTO (R_M32R_GOT24, /* type */
901 0, /* rightshift */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
903 24, /* bitsize */
904 FALSE, /* pc_relative */
905 0, /* bitpos */
906 complain_overflow_unsigned, /* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_M32R_GOT24", /* name */
909 FALSE, /* partial_inplace */
910 0xffffff, /* src_mask */
911 0xffffff, /* dst_mask */
912 FALSE), /* pcrel_offset */
8b125cde 913
47b0e7ad
NC		 914 /* Like R_M32R_PCREL, but referring to the procedure linkage table
915 entry for the symbol. */
916 HOWTO (R_M32R_26_PLTREL, /* type */
917 2, /* rightshift */
918 2, /* size (0 = byte, 1 = short, 2 = long) */
919 24, /* bitsize */
920 TRUE, /* pc_relative */
921 0, /* bitpos */
922 complain_overflow_signed, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_M32R_26_PLTREL", /* name */
925 FALSE, /* partial_inplace */
926 0xffffff, /* src_mask */
927 0xffffff, /* dst_mask */
928 TRUE), /* pcrel_offset */
8b125cde 929
47b0e7ad
NC		 930 /* This is used only by the dynamic linker. The symbol should exist
931 both in the object being run and in some shared library. The
932 dynamic linker copies the data addressed by the symbol from the
933 shared library into the object, because the object being
934 run has to have the data at some particular address. */
935 HOWTO (R_M32R_COPY, /* type */
936 0, /* rightshift */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
938 32, /* bitsize */
939 FALSE, /* pc_relative */
940 0, /* bitpos */
941 complain_overflow_bitfield, /* complain_on_overflow */
942 bfd_elf_generic_reloc, /* special_function */
943 "R_M32R_COPY", /* name */
944 FALSE, /* partial_inplace */
945 0xffffffff, /* src_mask */
946 0xffffffff, /* dst_mask */
947 FALSE), /* pcrel_offset */
8b125cde 948
47b0e7ad
NC		 949 /* Like R_M32R_24, but used when setting global offset table
950 entries. */
951 HOWTO (R_M32R_GLOB_DAT, /* type */
952 0, /* rightshift */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
954 32, /* bitsize */
955 FALSE, /* pc_relative */
956 0, /* bitpos */
957 complain_overflow_bitfield, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_M32R_GLOB_DAT", /* name */
960 FALSE, /* partial_inplace */
961 0xffffffff, /* src_mask */
962 0xffffffff, /* dst_mask */
963 FALSE), /* pcrel_offset */
8b125cde 964
47b0e7ad
NC		 965 /* Marks a procedure linkage table entry for a symbol. */
966 HOWTO (R_M32R_JMP_SLOT, /* type */
967 0, /* rightshift */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
969 32, /* bitsize */
970 FALSE, /* pc_relative */
971 0, /* bitpos */
972 complain_overflow_bitfield, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_M32R_JMP_SLOT", /* name */
975 FALSE, /* partial_inplace */
976 0xffffffff, /* src_mask */
977 0xffffffff, /* dst_mask */
978 FALSE), /* pcrel_offset */
4c72e23a 979
47b0e7ad
NC		 980 /* Used only by the dynamic linker. When the object is run, this
981 longword is set to the load address of the object, plus the
982 addend. */
983 HOWTO (R_M32R_RELATIVE, /* type */
984 0, /* rightshift */
985 2, /* size (0 = byte, 1 = short, 2 = long) */
986 32, /* bitsize */
987 FALSE, /* pc_relative */
988 0, /* bitpos */
989 complain_overflow_bitfield, /* complain_on_overflow */
990 bfd_elf_generic_reloc, /* special_function */
991 "R_M32R_RELATIVE", /* name */
992 FALSE, /* partial_inplace */
993 0xffffffff, /* src_mask */
994 0xffffffff, /* dst_mask */
995 FALSE), /* pcrel_offset */
4c72e23a 996
47b0e7ad
NC		 997 HOWTO (R_M32R_GOTOFF, /* type */
998 0, /* rightshift */
999 2, /* size (0 = byte, 1 = short, 2 = long) */
1000 24, /* bitsize */
1001 FALSE, /* pc_relative */
1002 0, /* bitpos */
1003 complain_overflow_bitfield, /* complain_on_overflow */
1004 bfd_elf_generic_reloc, /* special_function */
1005 "R_M32R_GOTOFF", /* name */
1006 FALSE, /* partial_inplace */
1007 0xffffff, /* src_mask */
1008 0xffffff, /* dst_mask */
1009 FALSE), /* pcrel_offset */
4c72e23a 1010
47b0e7ad
NC		 1011 /* An PC Relative 24-bit relocation used when setting PIC offset
1012 table register. */
1013 HOWTO (R_M32R_GOTPC24, /* type */
1014 0, /* rightshift */
1015 2, /* size (0 = byte, 1 = short, 2 = long) */
1016 24, /* bitsize */
1017 TRUE, /* pc_relative */
1018 0, /* bitpos */
1019 complain_overflow_unsigned, /* complain_on_overflow */
1020 bfd_elf_generic_reloc, /* special_function */
1021 "R_M32R_GOTPC24", /* name */
1022 FALSE, /* partial_inplace */
1023 0xffffff, /* src_mask */
1024 0xffffff, /* dst_mask */
1025 TRUE), /* pcrel_offset */
4c72e23a 1026
47b0e7ad
NC		 1027 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1028 the symbol. */
1029 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1030 16, /* rightshift */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1032 16, /* bitsize */
1033 FALSE, /* pc_relative */
1034 0, /* bitpos */
1035 complain_overflow_dont, /* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* special_function */
1037 "R_M32R_GOT16_HI_ULO", /* name */
1038 FALSE, /* partial_inplace */
1039 0x0000ffff, /* src_mask */
1040 0x0000ffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
4c72e23a 1042
47b0e7ad
NC		 1043 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1044 the symbol. */
1045 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1046 16, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1048 16, /* bitsize */
1049 FALSE, /* pc_relative */
1050 0, /* bitpos */
1051 complain_overflow_dont, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_M32R_GOT16_HI_SLO", /* name */
1054 FALSE, /* partial_inplace */
1055 0x0000ffff, /* src_mask */
1056 0x0000ffff, /* dst_mask */
1057 FALSE), /* pcrel_offset */
8b125cde 1058
47b0e7ad
NC		 1059 /* Like R_M32R_LO16, but referring to the GOT table entry for
1060 the symbol. */
1061 HOWTO (R_M32R_GOT16_LO, /* type */
1062 0, /* rightshift */
1063 2, /* size (0 = byte, 1 = short, 2 = long) */
1064 16, /* bitsize */
1065 FALSE, /* pc_relative */
1066 0, /* bitpos */
1067 complain_overflow_dont, /* complain_on_overflow */
1068 bfd_elf_generic_reloc, /* special_function */
1069 "R_M32R_GOT16_LO", /* name */
1070 FALSE, /* partial_inplace */
1071 0x0000ffff, /* src_mask */
1072 0x0000ffff, /* dst_mask */
1073 FALSE), /* pcrel_offset */
4c72e23a 1074
47b0e7ad
NC		 1075 /* An PC Relative relocation used when setting PIC offset table register.
1076 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1077 the symbol. */
1078 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1079 16, /* rightshift */
1080 2, /* size (0 = byte, 1 = short, 2 = long) */
1081 16, /* bitsize */
1082 FALSE, /* pc_relative */
1083 0, /* bitpos */
1084 complain_overflow_dont, /* complain_on_overflow */
1085 bfd_elf_generic_reloc, /* special_function */
1086 "R_M32R_GOTPC_HI_ULO", /* name */
1087 FALSE, /* partial_inplace */
1088 0x0000ffff, /* src_mask */
1089 0x0000ffff, /* dst_mask */
1090 TRUE), /* pcrel_offset */
4c72e23a 1091
47b0e7ad
NC		 1092 /* An PC Relative relocation used when setting PIC offset table register.
1093 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1094 the symbol. */
1095 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1096 16, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1098 16, /* bitsize */
1099 FALSE, /* pc_relative */
1100 0, /* bitpos */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 bfd_elf_generic_reloc, /* special_function */
1103 "R_M32R_GOTPC_HI_SLO", /* name */
1104 FALSE, /* partial_inplace */
1105 0x0000ffff, /* src_mask */
1106 0x0000ffff, /* dst_mask */
1107 TRUE), /* pcrel_offset */
4c72e23a 1108
47b0e7ad
NC		 1109 /* An PC Relative relocation used when setting PIC offset table register.
1110 Like R_M32R_LO16, but referring to the GOT table entry for
1111 the symbol. */
1112 HOWTO (R_M32R_GOTPC_LO, /* type */
1113 0, /* rightshift */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1115 16, /* bitsize */
1116 FALSE, /* pc_relative */
1117 0, /* bitpos */
1118 complain_overflow_dont, /* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_M32R_GOTPC_LO", /* name */
1121 FALSE, /* partial_inplace */
1122 0x0000ffff, /* src_mask */
1123 0x0000ffff, /* dst_mask */
1124 TRUE), /* pcrel_offset */
252b5132 1125
47b0e7ad
NC		 1126 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1127 16, /* rightshift */
1128 2, /* size (0 = byte, 1 = short, 2 = long) */
1129 16, /* bitsize */
1130 FALSE, /* pc_relative */
1131 0, /* bitpos */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 bfd_elf_generic_reloc, /* special_function */
1134 "R_M32R_GOTOFF_HI_ULO",/* name */
1135 FALSE, /* partial_inplace */
1136 0x0000ffff, /* src_mask */
1137 0x0000ffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
252b5132 1139
47b0e7ad
NC		 1140 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1141 16, /* rightshift */
1142 2, /* size (0 = byte, 1 = short, 2 = long) */
1143 16, /* bitsize */
1144 FALSE, /* pc_relative */
1145 0, /* bitpos */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 bfd_elf_generic_reloc, /* special_function */
1148 "R_M32R_GOTOFF_HI_SLO",/* name */
1149 FALSE, /* partial_inplace */
1150 0x0000ffff, /* src_mask */
1151 0x0000ffff, /* dst_mask */
1152 FALSE), /* pcrel_offset */
252b5132 1153
47b0e7ad
NC		 1154 HOWTO (R_M32R_GOTOFF_LO, /* type */
1155 0, /* rightshift */
1156 2, /* size (0 = byte, 1 = short, 2 = long) */
1157 16, /* bitsize */
1158 FALSE, /* pc_relative */
1159 0, /* bitpos */
1160 complain_overflow_dont, /* complain_on_overflow */
1161 bfd_elf_generic_reloc, /* special_function */
1162 "R_M32R_GOTOFF_LO", /* name */
1163 FALSE, /* partial_inplace */
1164 0x0000ffff, /* src_mask */
1165 0x0000ffff, /* dst_mask */
1166 FALSE), /* pcrel_offset */
1167};
252b5132 1168
252b5132
RH		 1169/* Map BFD reloc types to M32R ELF reloc types. */
1170
1171struct m32r_reloc_map
1172{
1173 bfd_reloc_code_real_type bfd_reloc_val;
1174 unsigned char elf_reloc_val;
1175};
1176
d5b2f13b 1177#ifdef USE_M32R_OLD_RELOC
6edf0760 1178static const struct m32r_reloc_map m32r_reloc_map_old[] =
252b5132
RH		 1179{
1180 { BFD_RELOC_NONE, R_M32R_NONE },
1181 { BFD_RELOC_16, R_M32R_16 },
1182 { BFD_RELOC_32, R_M32R_32 },
1183 { BFD_RELOC_M32R_24, R_M32R_24 },
1184 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1185 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1186 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1187 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1188 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1189 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1190 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1191 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1192 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1193};
d5b2f13b 1194#else
6edf0760
NC		 1195static const struct m32r_reloc_map m32r_reloc_map[] =
1196{
1197 { BFD_RELOC_NONE, R_M32R_NONE },
1198 { BFD_RELOC_16, R_M32R_16_RELA },
1199 { BFD_RELOC_32, R_M32R_32_RELA },
1200 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1201 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1202 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1203 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1204 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1205 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1206 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1207 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1208 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1209 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
157e7bd1 1210 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
41978308 1211
6edf0760
NC		 1212 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1213 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1214 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1215 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1216 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1217 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1218 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1219 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1220 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1221 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1222 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1223 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1224 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1225 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
097f809a
NC		 1226 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1227 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1228 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
6edf0760 1229};
d5b2f13b 1230#endif
6edf0760 1231
252b5132 1232static reloc_howto_type *
47b0e7ad
NC		 1233bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1234 bfd_reloc_code_real_type code)
252b5132
RH		 1235{
1236 unsigned int i;
1237
6edf0760
NC		 1238#ifdef USE_M32R_OLD_RELOC
1239 for (i = 0;
1240 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1241 i++)
47b0e7ad
NC		 1242 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1243 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1244
6edf0760
NC		 1245#else /* ! USE_M32R_OLD_RELOC */
1246
252b5132
RH		 1247 for (i = 0;
1248 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1249 i++)
47b0e7ad
NC		 1250 if (m32r_reloc_map[i].bfd_reloc_val == code)
1251 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
6edf0760 1252#endif
252b5132
RH		 1253
1254 return NULL;
1255}
1256
157090f7
AM		 1257static reloc_howto_type *
1258bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1259 const char *r_name)
1260{
1261 unsigned int i;
1262
1263 for (i = 0;
1264 i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1265 i++)
1266 if (m32r_elf_howto_table[i].name != NULL
1267 && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1268 return &m32r_elf_howto_table[i];
1269
1270 return NULL;
1271}
1272
252b5132
RH		 1273/* Set the howto pointer for an M32R ELF reloc. */
1274
1275static void
47b0e7ad
NC		 1276m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1277 arelent *cache_ptr,
1278 Elf_Internal_Rela *dst)
252b5132
RH		 1279{
1280 unsigned int r_type;
1281
1282 r_type = ELF32_R_TYPE (dst->r_info);
f12123c0 1283 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY);
252b5132
RH		 1284 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1285}
6edf0760
NC		 1286
1287static void
47b0e7ad
NC		 1288m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1289 arelent *cache_ptr,
1290 Elf_Internal_Rela *dst)
6edf0760
NC		 1291{
1292 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1293 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1294 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1295 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1296}
1297
252b5132
RH		 1298\f
1299/* Given a BFD section, try to locate the corresponding ELF section
1300 index. */
1301
47b0e7ad
NC		 1302static bfd_boolean
1303_bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1304 asection *sec,
1305 int *retval)
252b5132
RH		 1306{
1307 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1308 {
1309 *retval = SHN_M32R_SCOMMON;
b34976b6 1310 return TRUE;
252b5132 1311 }
b34976b6 1312 return FALSE;
252b5132
RH		 1313}
1314
1315/* M32R ELF uses two common sections. One is the usual one, and the other
1316 is for small objects. All the small objects are kept together, and then
1317 referenced via one register, which yields faster assembler code. It is
1318 up to the compiler to emit an instruction to load the register with
1319 _SDA_BASE. This is what we use for the small common section. This
1320 approach is copied from elf32-mips.c. */
1321static asection m32r_elf_scom_section;
1322static asymbol m32r_elf_scom_symbol;
1323static asymbol *m32r_elf_scom_symbol_ptr;
1324
1325/* Handle the special M32R section numbers that a symbol may use. */
1326
47b0e7ad
NC		 1327static void
1328_bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
252b5132 1329{
47b0e7ad 1330 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
252b5132
RH		 1331
1332 switch (elfsym->internal_elf_sym.st_shndx)
1333 {
1334 case SHN_M32R_SCOMMON:
1335 if (m32r_elf_scom_section.name == NULL)
1336 {
1337 /* Initialize the small common section. */
1338 m32r_elf_scom_section.name = ".scommon";
1339 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1340 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1341 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1342 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1343 m32r_elf_scom_symbol.name = ".scommon";
1344 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1345 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1346 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1347 }
1348 asym->section = &m32r_elf_scom_section;
1349 asym->value = elfsym->internal_elf_sym.st_size;
1350 break;
1351 }
1352}
1353
1354/* Hook called by the linker routine which adds symbols from an object
1355 file. We must handle the special M32R section numbers here.
1356 We also keep watching for whether we need to create the sdata special
1357 linker sections. */
1358
b34976b6 1359static bfd_boolean
47b0e7ad
NC		 1360m32r_elf_add_symbol_hook (bfd *abfd,
1361 struct bfd_link_info *info,
1362 Elf_Internal_Sym *sym,
1363 const char **namep,
1364 flagword *flagsp ATTRIBUTE_UNUSED,
1365 asection **secp,
1366 bfd_vma *valp)
252b5132 1367{
1049f94e 1368 if (! info->relocatable
252b5132 1369 && (*namep)[0] == '_' && (*namep)[1] == 'S'
4ab82700 1370 && strcmp (*namep, "_SDA_BASE_") == 0
0eddce27 1371 && is_elf_hash_table (info->hash))
252b5132
RH		 1372 {
1373 /* This is simpler than using _bfd_elf_create_linker_section
1374 (our needs are simpler than ppc's needs). Also
1375 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1376 section already exists a new one is created that follows it which
1377 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1378 struct elf_link_hash_entry *h;
14a793b2 1379 struct bfd_link_hash_entry *bh;
252b5132
RH		 1380 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1381
6edf0760 1382 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
6edf0760
NC		 1383 if (s == NULL)
1384 {
1385 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1386 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1387
3496cb2a
L		 1388 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1389 flags);
6edf0760
NC		 1390 if (s == NULL)
1391 return FALSE;
6edf0760
NC		 1392 bfd_set_section_alignment (abfd, s, 2);
1393 }
1394
1395 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1396 FALSE, FALSE, FALSE);
1397
1398 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1399 && !(_bfd_generic_link_add_one_symbol (info,
1400 abfd,
1401 "_SDA_BASE_",
1402 BSF_GLOBAL,
1403 s,
1404 (bfd_vma) 32768,
47b0e7ad 1405 NULL,
6edf0760
NC		 1406 FALSE,
1407 get_elf_backend_data (abfd)->collect,
1408 &bh)))
1409 return FALSE;
1410 h = (struct elf_link_hash_entry *) bh;
1411 h->type = STT_OBJECT;
1412 }
1413
1414 switch (sym->st_shndx)
1415 {
1416 case SHN_M32R_SCOMMON:
1417 *secp = bfd_make_section_old_way (abfd, ".scommon");
1418 (*secp)->flags |= SEC_IS_COMMON;
1419 *valp = sym->st_size;
1420 break;
1421 }
1422
1423 return TRUE;
1424}
1425
1426/* We have to figure out the SDA_BASE value, so that we can adjust the
1427 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1428 BFD. If we can't find it, we're stuck. We cache it in the ELF
1429 target data. We don't need to adjust the symbol value for an
1430 external symbol if we are producing relocatable output. */
1431
1432static bfd_reloc_status_type
47b0e7ad
NC		 1433m32r_elf_final_sda_base (bfd *output_bfd,
1434 struct bfd_link_info *info,
1435 const char **error_message,
1436 bfd_vma *psb)
6edf0760
NC		 1437{
1438 if (elf_gp (output_bfd) == 0)
1439 {
1440 struct bfd_link_hash_entry *h;
1441
1442 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
47b0e7ad 1443 if (h != NULL && h->type == bfd_link_hash_defined)
6edf0760
NC		 1444 elf_gp (output_bfd) = (h->u.def.value
1445 + h->u.def.section->output_section->vma
1446 + h->u.def.section->output_offset);
1447 else
1448 {
1449 /* Only get the error once. */
1450 *psb = elf_gp (output_bfd) = 4;
1451 *error_message =
1452 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1453 return bfd_reloc_dangerous;
1454 }
1455 }
1456 *psb = elf_gp (output_bfd);
1457 return bfd_reloc_ok;
1458}
1459\f
1460/* Return size of a PLT entry. */
1461#define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1462
1463/* The m32r linker needs to keep track of the number of relocs that it
1464 decides to copy in check_relocs for each symbol. This is so that
1465 it can discard PC relative relocs if it doesn't need them when
1466 linking with -Bsymbolic. We store the information in a field
1467 extending the regular ELF linker hash table. */
1468
1469/* This structure keeps track of the number of PC relative relocs we
1470 have copied for a given symbol. */
1471
1472struct elf_m32r_pcrel_relocs_copied
1473{
1474 /* Next section. */
1475 struct elf_m32r_pcrel_relocs_copied *next;
1476 /* A section in dynobj. */
1477 asection *section;
1478 /* Number of relocs copied in this section. */
1479 bfd_size_type count;
1480};
1481
1482/* The sh linker needs to keep track of the number of relocs that it
1483 decides to copy as dynamic relocs in check_relocs for each symbol.
1484 This is so that it can later discard them if they are found to be
1485 unnecessary. We store the information in a field extending the
1486 regular ELF linker hash table. */
1487
1488struct elf_m32r_dyn_relocs
1489{
1490 struct elf_m32r_dyn_relocs *next;
1491
1492 /* The input section of the reloc. */
1493 asection *sec;
1494
1495 /* Total number of relocs copied for the input section. */
1496 bfd_size_type count;
1497
1498 /* Number of pc-relative relocs copied for the input section. */
1499 bfd_size_type pc_count;
1500};
1501
1502
1503/* m32r ELF linker hash entry. */
1504
1505struct elf_m32r_link_hash_entry
1506{
1507 struct elf_link_hash_entry root;
1508
1509 /* Track dynamic relocs copied for this symbol. */
1510 struct elf_m32r_dyn_relocs *dyn_relocs;
6edf0760
NC		 1511};
1512
1513/* m32r ELF linker hash table. */
1514
1515struct elf_m32r_link_hash_table
1516{
1517 struct elf_link_hash_table root;
1518
1519 /* Short-cuts to get to dynamic linker sections. */
1520 asection *sgot;
1521 asection *sgotplt;
1522 asection *srelgot;
1523 asection *splt;
1524 asection *srelplt;
1525 asection *sdynbss;
1526 asection *srelbss;
1527
1528 /* Small local sym to section mapping cache. */
1529 struct sym_sec_cache sym_sec;
1530};
1531
1532/* Traverse an m32r ELF linker hash table. */
1533
1534#define m32r_elf_link_hash_traverse(table, func, info) \
1535 (elf_link_hash_traverse \
1536 (&(table)->root, \
47b0e7ad 1537 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
6edf0760
NC		 1538 (info)))
1539
1540/* Get the m32r ELF linker hash table from a link_info structure. */
1541
1542
1543#define m32r_elf_hash_table(p) \
1544 ((struct elf_m32r_link_hash_table *) ((p)->hash))
1545
1546/* Create an entry in an m32r ELF linker hash table. */
6edf0760
NC		 1547
1548static struct bfd_hash_entry *
47b0e7ad
NC		 1549m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1550 struct bfd_hash_table *table,
1551 const char *string)
6edf0760
NC		 1552{
1553 struct elf_m32r_link_hash_entry *ret =
1554 (struct elf_m32r_link_hash_entry *) entry;
41978308 1555
6edf0760
NC		 1556 /* Allocate the structure if it has not already been allocated by a
1557 subclass. */
47b0e7ad
NC		 1558 if (ret == NULL)
1559 ret = bfd_hash_allocate (table,
1560 sizeof (struct elf_m32r_link_hash_entry));
1561 if (ret == NULL)
1562 return NULL;
41978308 1563
6edf0760
NC		 1564 /* Call the allocation method of the superclass. */
1565 ret = ((struct elf_m32r_link_hash_entry *)
1566 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1567 table, string));
47b0e7ad 1568 if (ret != NULL)
6edf0760
NC		 1569 {
1570 struct elf_m32r_link_hash_entry *eh;
41978308 1571
6edf0760
NC		 1572 eh = (struct elf_m32r_link_hash_entry *) ret;
1573 eh->dyn_relocs = NULL;
6edf0760 1574 }
41978308 1575
6edf0760
NC		 1576 return (struct bfd_hash_entry *) ret;
1577}
1578
1579/* Create an m32r ELF linker hash table. */
6edf0760
NC		 1580
1581static struct bfd_link_hash_table *
47b0e7ad 1582m32r_elf_link_hash_table_create (bfd *abfd)
6edf0760
NC		 1583{
1584 struct elf_m32r_link_hash_table *ret;
1585 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
41978308 1586
47b0e7ad
NC		 1587 ret = bfd_malloc (amt);
1588 if (ret == NULL)
6edf0760 1589 return NULL;
41978308 1590
66eb6687
AM		 1591 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1592 m32r_elf_link_hash_newfunc,
1593 sizeof (struct elf_m32r_link_hash_entry)))
6edf0760
NC		 1594 {
1595 free (ret);
1596 return NULL;
1597 }
41978308 1598
6edf0760
NC		 1599 ret->sgot = NULL;
1600 ret->sgotplt = NULL;
1601 ret->srelgot = NULL;
1602 ret->splt = NULL;
1603 ret->srelplt = NULL;
1604 ret->sdynbss = NULL;
1605 ret->srelbss = NULL;
1606 ret->sym_sec.abfd = NULL;
41978308 1607
6edf0760
NC		 1608 return &ret->root.root;
1609}
1610
1611/* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1612 shortcuts to them in our hash table. */
6edf0760
NC		 1613
1614static bfd_boolean
47b0e7ad 1615create_got_section (bfd *dynobj, struct bfd_link_info *info)
6edf0760
NC		 1616{
1617 struct elf_m32r_link_hash_table *htab;
1618
1619 if (! _bfd_elf_create_got_section (dynobj, info))
1620 return FALSE;
1621
1622 htab = m32r_elf_hash_table (info);
1623 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1624 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1625 if (! htab->sgot || ! htab->sgotplt)
1626 abort ();
1627
3496cb2a
L		 1628 htab->srelgot = bfd_make_section_with_flags (dynobj, ".rela.got",
1629 (SEC_ALLOC
1630 | SEC_LOAD
1631 | SEC_HAS_CONTENTS
1632 | SEC_IN_MEMORY
1633 | SEC_LINKER_CREATED
1634 | SEC_READONLY));
6edf0760 1635 if (htab->srelgot == NULL
6edf0760
NC		 1636 || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2))
1637 return FALSE;
1638
1639 return TRUE;
1640}
1641
1642/* Create dynamic sections when linking against a dynamic object. */
1643
1644static bfd_boolean
47b0e7ad 1645m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
6edf0760
NC		 1646{
1647 struct elf_m32r_link_hash_table *htab;
1648 flagword flags, pltflags;
47b0e7ad 1649 asection *s;
6edf0760
NC		 1650 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1651 int ptralign = 2; /* 32bit */
1652
1653 htab = m32r_elf_hash_table (info);
1654
1655 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1656 .rel[a].bss sections. */
6edf0760
NC		 1657 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1658 | SEC_LINKER_CREATED);
1659
1660 pltflags = flags;
1661 pltflags |= SEC_CODE;
1662 if (bed->plt_not_loaded)
1663 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1664 if (bed->plt_readonly)
1665 pltflags |= SEC_READONLY;
1666
3496cb2a 1667 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
6edf0760
NC		 1668 htab->splt = s;
1669 if (s == NULL
6edf0760
NC		 1670 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1671 return FALSE;
1672
1673 if (bed->want_plt_sym)
1674 {
1675 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1676 .plt section. */
41978308
AM		 1677 struct bfd_link_hash_entry *bh = NULL;
1678 struct elf_link_hash_entry *h;
47b0e7ad 1679
6edf0760
NC		 1680 if (! (_bfd_generic_link_add_one_symbol
1681 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
47b0e7ad 1682 (bfd_vma) 0, NULL, FALSE,
41978308 1683 get_elf_backend_data (abfd)->collect, &bh)))
6edf0760 1684 return FALSE;
41978308 1685 h = (struct elf_link_hash_entry *) bh;
f5385ebf 1686 h->def_regular = 1;
6edf0760 1687 h->type = STT_OBJECT;
7325306f 1688 htab->root.hplt = h;
6edf0760
NC		 1689
1690 if (info->shared
c152c796 1691 && ! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 1692 return FALSE;
1693 }
1694
3496cb2a
L		 1695 s = bfd_make_section_with_flags (abfd,
1696 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
1697 flags | SEC_READONLY);
6edf0760
NC		 1698 htab->srelplt = s;
1699 if (s == NULL
6edf0760
NC		 1700 || ! bfd_set_section_alignment (abfd, s, ptralign))
1701 return FALSE;
1702
1703 if (htab->sgot == NULL
1704 && ! create_got_section (abfd, info))
1705 return FALSE;
1706
1707 {
1708 const char *secname;
1709 char *relname;
1710 flagword secflags;
1711 asection *sec;
1712
1713 for (sec = abfd->sections; sec; sec = sec->next)
1714 {
1715 secflags = bfd_get_section_flags (abfd, sec);
1716 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
1717 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
1718 continue;
1719 secname = bfd_get_section_name (abfd, sec);
47b0e7ad 1720 relname = bfd_malloc ((bfd_size_type) strlen (secname) + 6);
6edf0760
NC		 1721 strcpy (relname, ".rela");
1722 strcat (relname, secname);
1723 if (bfd_get_section_by_name (abfd, secname))
1724 continue;
3496cb2a
L		 1725 s = bfd_make_section_with_flags (abfd, relname,
1726 flags | SEC_READONLY);
6edf0760 1727 if (s == NULL
6edf0760
NC		 1728 || ! bfd_set_section_alignment (abfd, s, ptralign))
1729 return FALSE;
1730 }
1731 }
1732
1733 if (bed->want_dynbss)
1734 {
1735 /* The .dynbss section is a place to put symbols which are defined
1736 by dynamic objects, are referenced by regular objects, and are
1737 not functions. We must allocate space for them in the process
1738 image and use a R_*_COPY reloc to tell the dynamic linker to
1739 initialize them at run time. The linker script puts the .dynbss
1740 section into the .bss section of the final image. */
3496cb2a
L		 1741 s = bfd_make_section_with_flags (abfd, ".dynbss",
1742 SEC_ALLOC | SEC_LINKER_CREATED);
6edf0760 1743 htab->sdynbss = s;
3496cb2a 1744 if (s == NULL)
6edf0760
NC		 1745 return FALSE;
1746 /* The .rel[a].bss section holds copy relocs. This section is not
1747 normally needed. We need to create it here, though, so that the
1748 linker will map it to an output section. We can't just create it
1749 only if we need it, because we will not know whether we need it
1750 until we have seen all the input files, and the first time the
1751 main linker code calls BFD after examining all the input files
1752 (size_dynamic_sections) the input sections have already been
1753 mapped to the output sections. If the section turns out not to
1754 be needed, we can discard it later. We will never need this
1755 section when generating a shared object, since they do not use
1756 copy relocs. */
1757 if (! info->shared)
1758 {
3496cb2a
L		 1759 s = bfd_make_section_with_flags (abfd,
1760 (bed->default_use_rela_p
1761 ? ".rela.bss" : ".rel.bss"),
1762 flags | SEC_READONLY);
6edf0760
NC		 1763 htab->srelbss = s;
1764 if (s == NULL
6edf0760
NC		 1765 || ! bfd_set_section_alignment (abfd, s, ptralign))
1766 return FALSE;
1767 }
1768 }
1769
1770 return TRUE;
1771}
1772
1773/* Copy the extra info we tack onto an elf_link_hash_entry. */
41978308 1774
6edf0760 1775static void
fcfa13d2 1776m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
6edf0760
NC		 1777 struct elf_link_hash_entry *dir,
1778 struct elf_link_hash_entry *ind)
1779{
47b0e7ad
NC		 1780 struct elf_m32r_link_hash_entry * edir;
1781 struct elf_m32r_link_hash_entry * eind;
41978308 1782
6edf0760
NC		 1783 edir = (struct elf_m32r_link_hash_entry *) dir;
1784 eind = (struct elf_m32r_link_hash_entry *) ind;
41978308 1785
6edf0760
NC		 1786 if (eind->dyn_relocs != NULL)
1787 {
1788 if (edir->dyn_relocs != NULL)
1789 {
1790 struct elf_m32r_dyn_relocs **pp;
1791 struct elf_m32r_dyn_relocs *p;
41978308 1792
fcfa13d2 1793 /* Add reloc counts against the indirect sym to the direct sym
6edf0760 1794 list. Merge any entries against the same section. */
47b0e7ad 1795 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC		 1796 {
1797 struct elf_m32r_dyn_relocs *q;
41978308 1798
6edf0760
NC		 1799 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1800 if (q->sec == p->sec)
1801 {
1802 q->pc_count += p->pc_count;
1803 q->count += p->count;
1804 *pp = p->next;
1805 break;
1806 }
1807 if (q == NULL)
1808 pp = &p->next;
1809 }
1810 *pp = edir->dyn_relocs;
1811 }
41978308 1812
6edf0760
NC		 1813 edir->dyn_relocs = eind->dyn_relocs;
1814 eind->dyn_relocs = NULL;
1815 }
41978308 1816
fcfa13d2 1817 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
6edf0760
NC		 1818}
1819
1820\f
1821/* Adjust a symbol defined by a dynamic object and referenced by a
1822 regular object. The current definition is in some section of the
1823 dynamic object, but we're not including those sections. We have to
1824 change the definition to something the rest of the link can
1825 understand. */
41978308 1826
6edf0760 1827static bfd_boolean
47b0e7ad
NC		 1828m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1829 struct elf_link_hash_entry *h)
6edf0760
NC		 1830{
1831 struct elf_m32r_link_hash_table *htab;
1832 struct elf_m32r_link_hash_entry *eh;
1833 struct elf_m32r_dyn_relocs *p;
1834 bfd *dynobj;
1835 asection *s;
1836 unsigned int power_of_two;
1837
1838#ifdef DEBUG_PIC
47b0e7ad 1839 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1840#endif
41978308 1841
6edf0760 1842 dynobj = elf_hash_table (info)->dynobj;
41978308 1843
6edf0760
NC		 1844 /* Make sure we know what is going on here. */
1845 BFD_ASSERT (dynobj != NULL
f5385ebf 1846 && (h->needs_plt
f6e332e6 1847 || h->u.weakdef != NULL
f5385ebf
AM		 1848 || (h->def_dynamic
1849 && h->ref_regular
1850 && !h->def_regular)));
6edf0760 1851
6edf0760
NC		 1852 /* If this is a function, put it in the procedure linkage table. We
1853 will fill in the contents of the procedure linkage table later,
1854 when we know the address of the .got section. */
1855 if (h->type == STT_FUNC
f5385ebf 1856 || h->needs_plt)
6edf0760
NC		 1857 {
1858 if (! info->shared
f5385ebf
AM		 1859 && !h->def_dynamic
1860 && !h->ref_dynamic
6edf0760
NC		 1861 && h->root.type != bfd_link_hash_undefweak
1862 && h->root.type != bfd_link_hash_undefined)
1863 {
1864 /* This case can occur if we saw a PLT reloc in an input
1865 file, but the symbol was never referred to by a dynamic
1866 object. In such a case, we don't actually need to build
1867 a procedure linkage table, and we can just do a PCREL
1868 reloc instead. */
1869 h->plt.offset = (bfd_vma) -1;
f5385ebf 1870 h->needs_plt = 0;
6edf0760
NC		 1871 }
1872
1873 return TRUE;
1874 }
1875 else
1876 h->plt.offset = (bfd_vma) -1;
41978308 1877
6edf0760
NC		 1878 /* If this is a weak symbol, and there is a real definition, the
1879 processor independent code will have arranged for us to see the
1880 real definition first, and we can just use the same value. */
f6e332e6 1881 if (h->u.weakdef != NULL)
6edf0760 1882 {
f6e332e6
AM		 1883 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1884 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1885 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1886 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6edf0760
NC		 1887 return TRUE;
1888 }
41978308 1889
6edf0760
NC		 1890 /* This is a reference to a symbol defined by a dynamic object which
1891 is not a function. */
41978308 1892
6edf0760
NC		 1893 /* If we are creating a shared library, we must presume that the
1894 only references to the symbol are via the global offset table.
1895 For such cases we need not do anything here; the relocations will
1896 be handled correctly by relocate_section. */
1897 if (info->shared)
1898 return TRUE;
41978308 1899
6edf0760
NC		 1900 /* If there are no references to this symbol that do not use the
1901 GOT, we don't need to generate a copy reloc. */
f5385ebf 1902 if (!h->non_got_ref)
6edf0760
NC		 1903 return TRUE;
1904
1905 /* If -z nocopyreloc was given, we won't generate them either. */
1906 if (info->nocopyreloc)
1907 {
f5385ebf 1908 h->non_got_ref = 0;
6edf0760
NC		 1909 return TRUE;
1910 }
1911
1912 eh = (struct elf_m32r_link_hash_entry *) h;
1913 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1914 {
1915 s = p->sec->output_section;
1916 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1917 break;
1918 }
1919
1920 /* If we didn't find any dynamic relocs in sections which needs the
1921 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1922 the copy reloc. */
1923 if (p == NULL)
1924 {
f5385ebf 1925 h->non_got_ref = 0;
6edf0760
NC		 1926 return TRUE;
1927 }
1928
909272ee
AM		 1929 if (h->size == 0)
1930 {
1931 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1932 h->root.root.string);
1933 return TRUE;
1934 }
1935
6edf0760
NC		 1936 /* We must allocate the symbol in our .dynbss section, which will
1937 become part of the .bss section of the executable. There will be
1938 an entry for this symbol in the .dynsym section. The dynamic
1939 object will contain position independent code, so all references
1940 from the dynamic object to this symbol will go through the global
1941 offset table. The dynamic linker will use the .dynsym entry to
1942 determine the address it must put in the global offset table, so
1943 both the dynamic object and the regular object will refer to the
1944 same memory location for the variable. */
41978308 1945
6edf0760
NC		 1946 htab = m32r_elf_hash_table (info);
1947 s = htab->sdynbss;
1948 BFD_ASSERT (s != NULL);
41978308 1949
6edf0760
NC		 1950 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1951 to copy the initial value out of the dynamic object and into the
1952 runtime process image. We need to remember the offset into the
1953 .rela.bss section we are going to use. */
1954 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1955 {
1956 asection *srel;
41978308 1957
6edf0760
NC		 1958 srel = htab->srelbss;
1959 BFD_ASSERT (srel != NULL);
eea6121a 1960 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1961 h->needs_copy = 1;
6edf0760 1962 }
41978308 1963
6edf0760
NC		 1964 /* We need to figure out the alignment required for this symbol. I
1965 have no idea how ELF linkers handle this. */
1966 power_of_two = bfd_log2 (h->size);
1967 if (power_of_two > 3)
1968 power_of_two = 3;
41978308 1969
6edf0760 1970 /* Apply the required alignment. */
eea6121a 1971 s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two));
6edf0760
NC		 1972 if (power_of_two > bfd_get_section_alignment (dynobj, s))
1973 {
1974 if (! bfd_set_section_alignment (dynobj, s, power_of_two))
1975 return FALSE;
1976 }
41978308 1977
6edf0760
NC		 1978 /* Define the symbol as being at this point in the section. */
1979 h->root.u.def.section = s;
eea6121a 1980 h->root.u.def.value = s->size;
41978308 1981
6edf0760 1982 /* Increment the section size to make room for the symbol. */
eea6121a 1983 s->size += h->size;
41978308 1984
6edf0760
NC		 1985 return TRUE;
1986}
1987
6edf0760
NC		 1988/* Allocate space in .plt, .got and associated reloc sections for
1989 dynamic relocs. */
41978308 1990
6edf0760 1991static bfd_boolean
47b0e7ad 1992allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 1993{
1994 struct bfd_link_info *info;
1995 struct elf_m32r_link_hash_table *htab;
1996 struct elf_m32r_link_hash_entry *eh;
1997 struct elf_m32r_dyn_relocs *p;
41978308 1998
6edf0760
NC		 1999 if (h->root.type == bfd_link_hash_indirect)
2000 return TRUE;
41978308 2001
6edf0760
NC		 2002 if (h->root.type == bfd_link_hash_warning)
2003 /* When warning symbols are created, they **replace** the "real"
2004 entry in the hash table, thus we never get to see the real
2005 symbol in a hash traversal. So look at it now. */
2006 h = (struct elf_link_hash_entry *) h->root.u.i.link;
41978308 2007
6edf0760
NC		 2008 info = (struct bfd_link_info *) inf;
2009 htab = m32r_elf_hash_table (info);
41978308 2010
6edf0760 2011 eh = (struct elf_m32r_link_hash_entry *) h;
41978308 2012
6edf0760
NC		 2013 if (htab->root.dynamic_sections_created
2014 && h->plt.refcount > 0)
2015 {
2016 /* Make sure this symbol is output as a dynamic symbol.
2017 Undefined weak syms won't yet be marked as dynamic. */
2018 if (h->dynindx == -1
f5385ebf 2019 && !h->forced_local)
6edf0760 2020 {
c152c796 2021 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2022 return FALSE;
2023 }
41978308 2024
c152c796 2025 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
6edf0760
NC		 2026 {
2027 asection *s = htab->splt;
41978308 2028
6edf0760
NC		 2029 /* If this is the first .plt entry, make room for the special
2030 first entry. */
eea6121a
AM		 2031 if (s->size == 0)
2032 s->size += PLT_ENTRY_SIZE;
41978308 2033
eea6121a 2034 h->plt.offset = s->size;
41978308 2035
6edf0760
NC		 2036 /* If this symbol is not defined in a regular file, and we are
2037 not generating a shared library, then set the symbol to this
2038 location in the .plt. This is required to make function
2039 pointers compare as equal between the normal executable and
2040 the shared library. */
2041 if (! info->shared
f5385ebf 2042 && !h->def_regular)
6edf0760
NC		 2043 {
2044 h->root.u.def.section = s;
2045 h->root.u.def.value = h->plt.offset;
2046 }
41978308 2047
6edf0760 2048 /* Make room for this entry. */
eea6121a 2049 s->size += PLT_ENTRY_SIZE;
41978308 2050
6edf0760
NC		 2051 /* We also need to make an entry in the .got.plt section, which
2052 will be placed in the .got section by the linker script. */
eea6121a 2053 htab->sgotplt->size += 4;
41978308 2054
6edf0760 2055 /* We also need to make an entry in the .rel.plt section. */
eea6121a 2056 htab->srelplt->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2057 }
2058 else
2059 {
2060 h->plt.offset = (bfd_vma) -1;
f5385ebf 2061 h->needs_plt = 0;
6edf0760
NC		 2062 }
2063 }
2064 else
2065 {
2066 h->plt.offset = (bfd_vma) -1;
f5385ebf 2067 h->needs_plt = 0;
6edf0760 2068 }
41978308 2069
6edf0760
NC		 2070 if (h->got.refcount > 0)
2071 {
2072 asection *s;
2073 bfd_boolean dyn;
41978308 2074
6edf0760
NC		 2075 /* Make sure this symbol is output as a dynamic symbol.
2076 Undefined weak syms won't yet be marked as dynamic. */
2077 if (h->dynindx == -1
f5385ebf 2078 && !h->forced_local)
6edf0760 2079 {
c152c796 2080 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2081 return FALSE;
2082 }
41978308 2083
6edf0760
NC		 2084 s = htab->sgot;
2085
eea6121a
AM		 2086 h->got.offset = s->size;
2087 s->size += 4;
6edf0760 2088 dyn = htab->root.dynamic_sections_created;
c152c796 2089 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
eea6121a 2090 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2091 }
2092 else
2093 h->got.offset = (bfd_vma) -1;
41978308 2094
6edf0760
NC		 2095 if (eh->dyn_relocs == NULL)
2096 return TRUE;
41978308 2097
6edf0760
NC		 2098 /* In the shared -Bsymbolic case, discard space allocated for
2099 dynamic pc-relative relocs against symbols which turn out to be
2100 defined in regular objects. For the normal shared case, discard
2101 space for pc-relative relocs that have become local due to symbol
2102 visibility changes. */
2103
2104 if (info->shared)
2105 {
f5385ebf
AM		 2106 if (h->def_regular
2107 && (h->forced_local
6edf0760
NC		 2108 || info->symbolic))
2109 {
2110 struct elf_m32r_dyn_relocs **pp;
47b0e7ad
NC		 2111
2112 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC		 2113 {
2114 p->count -= p->pc_count;
2115 p->pc_count = 0;
2116 if (p->count == 0)
2117 *pp = p->next;
2118 else
2119 pp = &p->next;
2120 }
2121 }
22d606e9
AM		 2122
2123 /* Also discard relocs on undefined weak syms with non-default
2124 visibility. */
2125 if (eh->dyn_relocs != NULL
2126 && h->root.type == bfd_link_hash_undefweak)
2127 {
2128 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2129 eh->dyn_relocs = NULL;
2130
2131 /* Make sure undefined weak symbols are output as a dynamic
2132 symbol in PIEs. */
2133 else if (h->dynindx == -1
2134 && !h->forced_local)
2135 {
2136 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2137 return FALSE;
2138 }
2139 }
6edf0760
NC		 2140 }
2141 else
2142 {
2143 /* For the non-shared case, discard space for relocs against
2144 symbols which turn out to need copy relocs or are not
2145 dynamic. */
41978308 2146
f5385ebf
AM		 2147 if (!h->non_got_ref
2148 && ((h->def_dynamic
2149 && !h->def_regular)
6edf0760
NC		 2150 || (htab->root.dynamic_sections_created
2151 && (h->root.type == bfd_link_hash_undefweak
2152 || h->root.type == bfd_link_hash_undefined))))
2153 {
2154 /* Make sure this symbol is output as a dynamic symbol.
2155 Undefined weak syms won't yet be marked as dynamic. */
2156 if (h->dynindx == -1
f5385ebf 2157 && !h->forced_local)
6edf0760 2158 {
c152c796 2159 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2160 return FALSE;
2161 }
41978308 2162
6edf0760
NC		 2163 /* If that succeeded, we know we'll be keeping all the
2164 relocs. */
2165 if (h->dynindx != -1)
2166 goto keep;
2167 }
41978308 2168
6edf0760 2169 eh->dyn_relocs = NULL;
41978308 2170
6edf0760
NC		 2171 keep: ;
2172 }
41978308 2173
6edf0760
NC		 2174 /* Finally, allocate space. */
2175 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2176 {
2177 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2178 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 2179 }
41978308 2180
6edf0760
NC		 2181 return TRUE;
2182}
47b0e7ad 2183
6edf0760 2184/* Find any dynamic relocs that apply to read-only sections. */
41978308 2185
6edf0760 2186static bfd_boolean
47b0e7ad 2187readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 2188{
2189 struct elf_m32r_link_hash_entry *eh;
2190 struct elf_m32r_dyn_relocs *p;
2191
2192 if (h->root.type == bfd_link_hash_warning)
2193 h = (struct elf_link_hash_entry *) h->root.u.i.link;
252b5132 2194
6edf0760
NC		 2195 eh = (struct elf_m32r_link_hash_entry *) h;
2196 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2197 {
2198 asection *s = p->sec->output_section;
252b5132 2199
6edf0760
NC		 2200 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2201 {
2202 struct bfd_link_info *info = (struct bfd_link_info *) inf;
252b5132 2203
6edf0760 2204 info->flags |= DF_TEXTREL;
252b5132 2205
6edf0760
NC		 2206 /* Not an error, just cut short the traversal. */
2207 return FALSE;
2208 }
252b5132 2209 }
6edf0760
NC		 2210 return TRUE;
2211}
252b5132 2212
6edf0760 2213/* Set the sizes of the dynamic sections. */
41978308 2214
6edf0760 2215static bfd_boolean
47b0e7ad
NC		 2216m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2217 struct bfd_link_info *info)
6edf0760
NC		 2218{
2219 struct elf_m32r_link_hash_table *htab;
2220 bfd *dynobj;
2221 asection *s;
2222 bfd_boolean relocs;
2223 bfd *ibfd;
2224
2225#ifdef DEBUG_PIC
47b0e7ad 2226 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC		 2227#endif
2228
2229 htab = m32r_elf_hash_table (info);
2230 dynobj = htab->root.dynobj;
2231 BFD_ASSERT (dynobj != NULL);
2232
2233 if (htab->root.dynamic_sections_created)
252b5132 2234 {
6edf0760 2235 /* Set the contents of the .interp section to the interpreter. */
80447b21 2236 if (info->executable)
6edf0760
NC		 2237 {
2238 s = bfd_get_section_by_name (dynobj, ".interp");
2239 BFD_ASSERT (s != NULL);
eea6121a 2240 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC		 2241 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2242 }
252b5132
RH		 2243 }
2244
6edf0760
NC		 2245 /* Set up .got offsets for local syms, and space for local dynamic
2246 relocs. */
2247 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2248 {
2249 bfd_signed_vma *local_got;
2250 bfd_signed_vma *end_local_got;
2251 bfd_size_type locsymcount;
2252 Elf_Internal_Shdr *symtab_hdr;
2253 asection *srel;
252b5132 2254
6edf0760
NC		 2255 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2256 continue;
252b5132 2257
6edf0760
NC		 2258 for (s = ibfd->sections; s != NULL; s = s->next)
2259 {
2260 struct elf_m32r_dyn_relocs *p;
2261
2262 for (p = ((struct elf_m32r_dyn_relocs *)
2263 elf_section_data (s)->local_dynrel);
2264 p != NULL;
2265 p = p->next)
2266 {
2267 if (! bfd_is_abs_section (p->sec)
2268 && bfd_is_abs_section (p->sec->output_section))
2269 {
2270 /* Input section has been discarded, either because
2271 it is a copy of a linkonce section or due to
2272 linker script /DISCARD/, so we'll be discarding
2273 the relocs too. */
2274 }
2275 else if (p->count != 0)
2276 {
2277 srel = elf_section_data (p->sec)->sreloc;
eea6121a 2278 srel->size += p->count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2279 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2280 info->flags |= DF_TEXTREL;
2281 }
2282 }
2283 }
2284
2285 local_got = elf_local_got_refcounts (ibfd);
2286 if (!local_got)
2287 continue;
2288
2289 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2290 locsymcount = symtab_hdr->sh_info;
2291 end_local_got = local_got + locsymcount;
2292 s = htab->sgot;
2293 srel = htab->srelgot;
2294 for (; local_got < end_local_got; ++local_got)
2295 {
2296 if (*local_got > 0)
2297 {
eea6121a
AM		 2298 *local_got = s->size;
2299 s->size += 4;
6edf0760 2300 if (info->shared)
eea6121a 2301 srel->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2302 }
2303 else
2304 *local_got = (bfd_vma) -1;
2305 }
2306 }
2307
2308 /* Allocate global sym .plt and .got entries, and space for global
2309 sym dynamic relocs. */
47b0e7ad 2310 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC		 2311
2312 /* We now have determined the sizes of the various dynamic sections.
2313 Allocate memory for them. */
2314 relocs = FALSE;
2315 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2316 {
6edf0760
NC		 2317 if ((s->flags & SEC_LINKER_CREATED) == 0)
2318 continue;
252b5132 2319
6edf0760
NC		 2320 if (s == htab->splt
2321 || s == htab->sgot
c456f082
AM		 2322 || s == htab->sgotplt
2323 || s == htab->sdynbss)
6edf0760
NC		 2324 {
2325 /* Strip this section if we don't need it; see the
2326 comment below. */
2327 }
0112cd26 2328 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
6edf0760 2329 {
eea6121a 2330 if (s->size != 0 && s != htab->srelplt)
6edf0760
NC		 2331 relocs = TRUE;
2332
2333 /* We use the reloc_count field as a counter if we need
2334 to copy relocs into the output file. */
2335 s->reloc_count = 0;
2336 }
252b5132 2337 else
47b0e7ad
NC		 2338 /* It's not one of our sections, so don't allocate space. */
2339 continue;
6edf0760 2340
eea6121a 2341 if (s->size == 0)
6edf0760
NC		 2342 {
2343 /* If we don't need this section, strip it from the
2344 output file. This is mostly to handle .rela.bss and
2345 .rela.plt. We must create both sections in
2346 create_dynamic_sections, because they must be created
2347 before the linker maps input sections to output
2348 sections. The linker does that before
2349 adjust_dynamic_symbol is called, and it is that
2350 function which decides whether anything needs to go
2351 into these sections. */
8423293d 2352 s->flags |= SEC_EXCLUDE;
6edf0760
NC		 2353 continue;
2354 }
2355
c456f082
AM		 2356 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2357 continue;
2358
6edf0760
NC		 2359 /* Allocate memory for the section contents. We use bfd_zalloc
2360 here in case unused entries are not reclaimed before the
2361 section's contents are written out. This should not happen,
2362 but this way if it does, we get a R_M32R_NONE reloc instead
2363 of garbage. */
47b0e7ad 2364 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760
NC		 2365 if (s->contents == NULL)
2366 return FALSE;
2367 }
2368
2369 if (htab->root.dynamic_sections_created)
2370 {
2371 /* Add some entries to the .dynamic section. We fill in the
2372 values later, in m32r_elf_finish_dynamic_sections, but we
2373 must add the entries now so that we get the correct size for
2374 the .dynamic section. The DT_DEBUG entry is filled in by the
2375 dynamic linker and used by the debugger. */
2376#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2377 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6edf0760 2378
80447b21 2379 if (info->executable)
252b5132 2380 {
6edf0760
NC		 2381 if (! add_dynamic_entry (DT_DEBUG, 0))
2382 return FALSE;
252b5132 2383 }
6edf0760 2384
eea6121a 2385 if (htab->splt->size != 0)
6edf0760
NC		 2386 {
2387 if (! add_dynamic_entry (DT_PLTGOT, 0)
2388 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2389 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2390 || ! add_dynamic_entry (DT_JMPREL, 0))
2391 return FALSE;
2392 }
2393
2394 if (relocs)
2395 {
2396 if (! add_dynamic_entry (DT_RELA, 0)
2397 || ! add_dynamic_entry (DT_RELASZ, 0)
2398 || ! add_dynamic_entry (DT_RELAENT,
2399 sizeof (Elf32_External_Rela)))
2400 return FALSE;
2401
2402 /* If any dynamic relocs apply to a read-only section,
2403 then we need a DT_TEXTREL entry. */
2404 if ((info->flags & DF_TEXTREL) == 0)
2405 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
47b0e7ad 2406 info);
6edf0760
NC		 2407
2408 if ((info->flags & DF_TEXTREL) != 0)
2409 {
2410 if (! add_dynamic_entry (DT_TEXTREL, 0))
2411 return FALSE;
2412 }
2413 }
252b5132 2414 }
6edf0760
NC		 2415#undef add_dynamic_entry
2416
2417 return TRUE;
252b5132 2418}
47b0e7ad 2419
252b5132
RH		 2420/* Relocate an M32R/D ELF section.
2421 There is some attempt to make this function usable for many architectures,
f0fe0e16 2422 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH		 2423
2424 The RELOCATE_SECTION function is called by the new ELF backend linker
2425 to handle the relocations for a section.
2426
2427 The relocs are always passed as Rela structures; if the section
2428 actually uses Rel structures, the r_addend field will always be
2429 zero.
2430
2431 This function is responsible for adjust the section contents as
2432 necessary, and (if using Rela relocs and generating a
1049f94e 2433 relocatable output file) adjusting the reloc addend as
252b5132
RH		 2434 necessary.
2435
2436 This function does not have to worry about setting the reloc
2437 address or the reloc symbol index.
2438
2439 LOCAL_SYMS is a pointer to the swapped in local symbols.
2440
2441 LOCAL_SECTIONS is an array giving the section in the input file
2442 corresponding to the st_shndx field of each local symbol.
2443
2444 The global hash table entry for the global symbols can be found
2445 via elf_sym_hashes (input_bfd).
2446
1049f94e 2447 When generating relocatable output, this function must handle
252b5132
RH		 2448 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2449 going to be the section symbol corresponding to the output
2450 section, which means that the addend must be adjusted
2451 accordingly. */
2452
b34976b6 2453static bfd_boolean
47b0e7ad
NC		 2454m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2455 struct bfd_link_info *info,
2456 bfd *input_bfd,
2457 asection *input_section,
2458 bfd_byte *contents,
2459 Elf_Internal_Rela *relocs,
2460 Elf_Internal_Sym *local_syms,
2461 asection **local_sections)
252b5132
RH		 2462{
2463 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2464 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2465 Elf_Internal_Rela *rel, *relend;
2466 /* Assume success. */
b34976b6 2467 bfd_boolean ret = TRUE;
252b5132 2468
6edf0760
NC		 2469 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2470 bfd *dynobj;
2471 bfd_vma *local_got_offsets;
2472 asection *sgot, *splt, *sreloc;
07515404 2473 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760
NC		 2474
2475 dynobj = htab->root.dynobj;
2476 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2477
6edf0760
NC		 2478 sgot = htab->sgot;
2479 splt = htab->splt;
2480 sreloc = NULL;
b491616a 2481
252b5132
RH		 2482 rel = relocs;
2483 relend = relocs + input_section->reloc_count;
2484 for (; rel < relend; rel++)
2485 {
2486 int r_type;
2487 reloc_howto_type *howto;
2488 unsigned long r_symndx;
6edf0760 2489 struct elf_link_hash_entry *h;
252b5132 2490 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
6edf0760
NC		 2491 ensure it's zero (we use REL relocs, not RELA). Therefore this
2492 should be assigning zero to `addend', but for clarity we use
2493 `r_addend'. */
252b5132
RH		 2494 bfd_vma addend = rel->r_addend;
2495 bfd_vma offset = rel->r_offset;
ab96bf03 2496 bfd_vma relocation;
252b5132
RH		 2497 Elf_Internal_Sym *sym;
2498 asection *sec;
2499 const char *sym_name;
2500 bfd_reloc_status_type r;
2501 const char *errmsg = NULL;
6edf0760 2502 bfd_boolean use_rel = FALSE;
252b5132
RH		 2503
2504 h = NULL;
2505 r_type = ELF32_R_TYPE (rel->r_info);
2506 if (r_type < 0 || r_type >= (int) R_M32R_max)
2507 {
d003868e
AM		 2508 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2509 input_bfd,
252b5132
RH		 2510 (int) r_type);
2511 bfd_set_error (bfd_error_bad_value);
b34976b6 2512 ret = FALSE;
252b5132
RH		 2513 continue;
2514 }
2515
47b0e7ad 2516 if ( r_type == R_M32R_GNU_VTENTRY
6edf0760
NC		 2517 || r_type == R_M32R_GNU_VTINHERIT
2518 || r_type == R_M32R_NONE
2519 || r_type == R_M32R_RELA_GNU_VTENTRY
2520 || r_type == R_M32R_RELA_GNU_VTINHERIT)
252b5132
RH		 2521 continue;
2522
6edf0760
NC		 2523 if (r_type <= R_M32R_GNU_VTENTRY)
2524 use_rel = TRUE;
2525
252b5132
RH		 2526 howto = m32r_elf_howto_table + r_type;
2527 r_symndx = ELF32_R_SYM (rel->r_info);
2528
ab96bf03
AM		 2529 sym = NULL;
2530 sec = NULL;
2531 h = NULL;
2532
2533 if (r_symndx < symtab_hdr->sh_info)
2534 {
2535 /* Local symbol. */
2536 sym = local_syms + r_symndx;
2537 sec = local_sections[r_symndx];
2538 sym_name = "<local symbol>";
2539
2540 if (!use_rel)
2541 {
2542 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2543 addend = rel->r_addend;
2544 }
2545 else
2546 {
2547 relocation = (sec->output_section->vma
2548 + sec->output_offset
2549 + sym->st_value);
2550 }
2551 }
2552 else
2553 {
2554 /* External symbol. */
2555 relocation = 0;
2556
2557 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2558 while (h->root.type == bfd_link_hash_indirect
2559 || h->root.type == bfd_link_hash_warning)
2560 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2561 sym_name = h->root.root.string;
2562
2563 if (h->root.type == bfd_link_hash_defined
2564 || h->root.type == bfd_link_hash_defweak)
2565 {
2566 bfd_boolean dyn;
2567 sec = h->root.u.def.section;
2568
2569 dyn = htab->root.dynamic_sections_created;
2570 sec = h->root.u.def.section;
2571 if (r_type == R_M32R_GOTPC24
2572 || (r_type == R_M32R_GOTPC_HI_ULO
2573 || r_type == R_M32R_GOTPC_HI_SLO
2574 || r_type == R_M32R_GOTPC_LO)
2575 || (r_type == R_M32R_26_PLTREL
2576 && h->plt.offset != (bfd_vma) -1)
2577 || ((r_type == R_M32R_GOT24
2578 || r_type == R_M32R_GOT16_HI_ULO
2579 || r_type == R_M32R_GOT16_HI_SLO
2580 || r_type == R_M32R_GOT16_LO)
2581 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2582 info->shared, h)
2583 && (! info->shared
2584 || (! info->symbolic && h->dynindx != -1)
2585 || !h->def_regular))
2586 || (info->shared
2587 && ((! info->symbolic && h->dynindx != -1)
2588 || !h->def_regular)
2589 && (((r_type == R_M32R_16_RELA
2590 || r_type == R_M32R_32_RELA
2591 || r_type == R_M32R_24_RELA
2592 || r_type == R_M32R_HI16_ULO_RELA
2593 || r_type == R_M32R_HI16_SLO_RELA
2594 || r_type == R_M32R_LO16_RELA)
2595 && !h->forced_local)
2596 || r_type == R_M32R_REL32
2597 || r_type == R_M32R_10_PCREL_RELA
2598 || r_type == R_M32R_18_PCREL_RELA
2599 || r_type == R_M32R_26_PCREL_RELA)
2600 && ((input_section->flags & SEC_ALLOC) != 0
2601 /* DWARF will emit R_M32R_16(24,32) relocations
2602 in its sections against symbols defined
2603 externally in shared libraries. We can't do
2604 anything with them here. */
2605 || ((input_section->flags & SEC_DEBUGGING) != 0
2606 && h->def_dynamic))))
2607 {
2608 /* In these cases, we don't need the relocation
2609 value. We check specially because in some
2610 obscure cases sec->output_section will be NULL. */
2611 }
2612 else if (sec->output_section != NULL)
2613 relocation = (h->root.u.def.value
2614 + sec->output_section->vma
2615 + sec->output_offset);
2616 else if (!info->relocatable)
2617 {
2618 (*_bfd_error_handler)
2619 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2620 input_bfd,
2621 input_section,
2622 (long) rel->r_offset,
2623 howto->name,
2624 h->root.root.string);
2625 }
2626 }
2627 else if (h->root.type == bfd_link_hash_undefweak)
2628 ;
2629 else if (info->unresolved_syms_in_objects == RM_IGNORE
2630 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2631 ;
2632 else if (!info->relocatable)
2633 {
2634 if (! ((*info->callbacks->undefined_symbol)
2635 (info, h->root.root.string, input_bfd,
2636 input_section, offset,
2637 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2638 || ELF_ST_VISIBILITY (h->other)))))
2639 return FALSE;
2640 }
2641 }
2642
2643 if (sec != NULL && elf_discarded_section (sec))
2644 {
2645 /* For relocs against symbols from removed linkonce sections,
2646 or sections discarded by a linker script, we just want the
2647 section contents zeroed. Avoid any special processing. */
2648 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2649 rel->r_info = 0;
2650 rel->r_addend = 0;
2651 continue;
2652 }
2653
2654 if (info->relocatable && !use_rel)
252b5132 2655 {
1049f94e 2656 /* This is a relocatable link. We don't have to change
252b5132
RH		 2657 anything, unless the reloc is against a section symbol,
2658 in which case we have to adjust according to where the
2659 section symbol winds up in the output section. */
ab96bf03
AM		 2660 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2661 rel->r_addend += sec->output_offset;
2662 continue;
2663 }
252b5132 2664
ab96bf03
AM		 2665 if (info->relocatable && use_rel)
2666 {
2667 /* This is a relocatable link. We don't have to change
2668 anything, unless the reloc is against a section symbol,
2669 in which case we have to adjust according to where the
2670 section symbol winds up in the output section. */
2671 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2672 continue;
252b5132 2673
ab96bf03 2674 addend += sec->output_offset;
252b5132 2675
252b5132
RH		 2676 /* If partial_inplace, we need to store any additional addend
2677 back in the section. */
2678 if (! howto->partial_inplace)
2679 continue;
2680 /* ??? Here is a nice place to call a special_function
2681 like handler. */
2682 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2683 r = _bfd_relocate_contents (howto, input_bfd,
2684 addend, contents + offset);
2685 else
2686 {
2687 Elf_Internal_Rela *lorel;
2688
2689 /* We allow an arbitrary number of HI16 relocs before the
2690 LO16 reloc. This permits gcc to emit the HI and LO relocs
2691 itself. */
2692 for (lorel = rel + 1;
2693 (lorel < relend
2694 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2695 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2696 lorel++)
2697 continue;
2698 if (lorel < relend
2699 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2700 {
2701 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2702 contents, addend);
2703 r = bfd_reloc_ok;
2704 }
2705 else
2706 r = _bfd_relocate_contents (howto, input_bfd,
2707 addend, contents + offset);
2708 }
252b5132
RH		 2709 }
2710 else
2711 {
252b5132 2712 /* Sanity check the address. */
07515404 2713 if (offset > high_address)
252b5132
RH		 2714 {
2715 r = bfd_reloc_outofrange;
2716 goto check_reloc;
2717 }
2718
2719 switch ((int) r_type)
2720 {
097f809a
NC		 2721 case R_M32R_GOTOFF:
2722 /* Relocation is relative to the start of the global offset
2723 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2724
097f809a
NC		 2725 ld24 rx. #label@GOTOFF + addend
2726 sub rx, r12. */
2727
2728 BFD_ASSERT (sgot != NULL);
2729
2730 relocation = -(relocation - sgot->output_section->vma);
2731 rel->r_addend = -rel->r_addend;
2732 break;
2733
2734 case R_M32R_GOTOFF_HI_ULO:
2735 case R_M32R_GOTOFF_HI_SLO:
2736 case R_M32R_GOTOFF_LO:
2737 BFD_ASSERT (sgot != NULL);
2738
2739 relocation -= sgot->output_section->vma;
2740
2741 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2742 && ((relocation + rel->r_addend) & 0x8000))
2743 rel->r_addend += 0x10000;
2744 break;
2745
6edf0760
NC		 2746 case R_M32R_GOTPC24:
2747 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2748 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2749 */
2750 relocation = sgot->output_section->vma;
2751 break;
2752
2753 case R_M32R_GOTPC_HI_ULO:
2754 case R_M32R_GOTPC_HI_SLO:
41978308 2755 case R_M32R_GOTPC_LO:
6edf0760
NC		 2756 {
2757 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2758 bl .+4
2759 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2760 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2761 or
2762 bl .+4
2763 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2764 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2765 */
2766 relocation = sgot->output_section->vma;
2767 relocation -= (input_section->output_section->vma
2768 + input_section->output_offset
2769 + rel->r_offset);
41978308 2770 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC		 2771 && ((relocation + rel->r_addend) & 0x8000))
2772 rel->r_addend += 0x10000;
2773
2774 break;
2775 }
2776 case R_M32R_GOT16_HI_ULO:
2777 case R_M32R_GOT16_HI_SLO:
41978308 2778 case R_M32R_GOT16_LO:
6edf0760
NC		 2779 /* Fall through. */
2780 case R_M32R_GOT24:
2781 /* Relocation is to the entry for this symbol in the global
2782 offset table. */
2783 BFD_ASSERT (sgot != NULL);
41978308 2784
6edf0760
NC		 2785 if (h != NULL)
2786 {
2787 bfd_boolean dyn;
2788 bfd_vma off;
41978308 2789
6edf0760
NC		 2790 off = h->got.offset;
2791 BFD_ASSERT (off != (bfd_vma) -1);
2792
2793 dyn = htab->root.dynamic_sections_created;
c152c796 2794 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6edf0760
NC		 2795 || (info->shared
2796 && (info->symbolic
2797 || h->dynindx == -1
f5385ebf
AM		 2798 || h->forced_local)
2799 && h->def_regular))
6edf0760
NC		 2800 {
2801 /* This is actually a static link, or it is a
2802 -Bsymbolic link and the symbol is defined
2803 locally, or the symbol was forced to be local
2804 because of a version file. We must initialize
2805 this entry in the global offset table. Since the
2806 offset must always be a multiple of 4, we use the
2807 least significant bit to record whether we have
2808 initialized it already.
41978308 2809
6edf0760
NC		 2810 When doing a dynamic link, we create a .rela.got
2811 relocation entry to initialize the value. This
2812 is done in the finish_dynamic_symbol routine. */
2813 if ((off & 1) != 0)
2814 off &= ~1;
2815 else
2816 {
2817 bfd_put_32 (output_bfd, relocation,
2818 sgot->contents + off);
2819 h->got.offset |= 1;
2820 }
2821 }
41978308 2822
6edf0760
NC		 2823 relocation = sgot->output_offset + off;
2824 }
2825 else
2826 {
2827 bfd_vma off;
2828 bfd_byte *loc;
41978308 2829
6edf0760
NC		 2830 BFD_ASSERT (local_got_offsets != NULL
2831 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2832
6edf0760 2833 off = local_got_offsets[r_symndx];
41978308 2834
6edf0760
NC		 2835 /* The offset must always be a multiple of 4. We use
2836 the least significant bit to record whether we have
2837 already processed this entry. */
2838 if ((off & 1) != 0)
2839 off &= ~1;
2840 else
2841 {
2842 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2843
6edf0760
NC		 2844 if (info->shared)
2845 {
2846 asection *srelgot;
2847 Elf_Internal_Rela outrel;
41978308 2848
6edf0760
NC		 2849 /* We need to generate a R_M32R_RELATIVE reloc
2850 for the dynamic linker. */
2851 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2852 BFD_ASSERT (srelgot != NULL);
41978308 2853
6edf0760
NC		 2854 outrel.r_offset = (sgot->output_section->vma
2855 + sgot->output_offset
2856 + off);
2857 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2858 outrel.r_addend = relocation;
2859 loc = srelgot->contents;
47b0e7ad 2860 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2861 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2862 ++srelgot->reloc_count;
2863 }
41978308 2864
6edf0760
NC		 2865 local_got_offsets[r_symndx] |= 1;
2866 }
41978308 2867
6edf0760
NC		 2868 relocation = sgot->output_offset + off;
2869 }
2870 if ((r_type == R_M32R_GOT16_HI_SLO)
2871 && ((relocation + rel->r_addend) & 0x8000))
2872 rel->r_addend += 0x10000;
2873
2874 break;
41978308 2875
6edf0760
NC		 2876 case R_M32R_26_PLTREL:
2877 /* Relocation is to the entry for this symbol in the
2878 procedure linkage table. */
41978308 2879
6edf0760
NC		 2880 /* The native assembler will generate a 26_PLTREL reloc
2881 for a local symbol if you assemble a call from one
2882 section to another when using -K pic. */
2883 if (h == NULL)
2884 break;
2885
f5385ebf 2886 if (h->forced_local)
6edf0760
NC		 2887 break;
2888
2889 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC		 2890 /* We didn't make a PLT entry for this symbol. This
2891 happens when statically linking PIC code, or when
2892 using -Bsymbolic. */
2893 break;
41978308 2894
6edf0760
NC		 2895 relocation = (splt->output_section->vma
2896 + splt->output_offset
2897 + h->plt.offset);
2898 break;
41978308 2899
6edf0760 2900 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC		 2901 if ((relocation + rel->r_addend) & 0x8000)
2902 rel->r_addend += 0x10000;
6edf0760 2903 /* Fall through. */
47b0e7ad 2904
6edf0760
NC		 2905 case R_M32R_16_RELA:
2906 case R_M32R_24_RELA:
2907 case R_M32R_32_RELA:
157e7bd1 2908 case R_M32R_REL32:
8ce757c4 2909 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 2910 case R_M32R_18_PCREL_RELA:
2911 case R_M32R_26_PCREL_RELA:
2912 case R_M32R_HI16_ULO_RELA:
2913 case R_M32R_LO16_RELA:
6edf0760
NC		 2914 if (info->shared
2915 && r_symndx != 0
2916 && (input_section->flags & SEC_ALLOC) != 0
8ce757c4
NC		 2917 && (( r_type != R_M32R_10_PCREL_RELA
2918 && r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC		 2919 && r_type != R_M32R_26_PCREL_RELA
2920 && r_type != R_M32R_REL32)
6edf0760
NC		 2921 || (h != NULL
2922 && h->dynindx != -1
2923 && (! info->symbolic
f5385ebf 2924 || !h->def_regular))))
6edf0760
NC		 2925 {
2926 Elf_Internal_Rela outrel;
2927 bfd_boolean skip, relocate;
2928 bfd_byte *loc;
41978308 2929
6edf0760
NC		 2930 /* When generating a shared object, these relocations
2931 are copied into the output file to be resolved at run
2932 time. */
6edf0760
NC		 2933 if (sreloc == NULL)
2934 {
2935 const char *name;
41978308 2936
6edf0760
NC		 2937 name = (bfd_elf_string_from_elf_section
2938 (input_bfd,
2939 elf_elfheader (input_bfd)->e_shstrndx,
2940 elf_section_data (input_section)->rel_hdr.sh_name));
2941 if (name == NULL)
2942 return FALSE;
41978308 2943
0112cd26 2944 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
6edf0760
NC		 2945 && strcmp (bfd_get_section_name (input_bfd,
2946 input_section),
2947 name + 5) == 0);
41978308 2948
6edf0760
NC		 2949 sreloc = bfd_get_section_by_name (dynobj, name);
2950 BFD_ASSERT (sreloc != NULL);
2951 }
41978308 2952
6edf0760
NC		 2953 skip = FALSE;
2954 relocate = FALSE;
41978308 2955
6edf0760
NC		 2956 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2957 info,
2958 input_section,
2959 rel->r_offset);
2960 if (outrel.r_offset == (bfd_vma) -1)
2961 skip = TRUE;
2962 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2963 skip = relocate = TRUE;
6edf0760
NC		 2964 outrel.r_offset += (input_section->output_section->vma
2965 + input_section->output_offset);
41978308 2966
6edf0760
NC		 2967 if (skip)
2968 memset (&outrel, 0, sizeof outrel);
8ce757c4
NC		 2969 else if ( r_type == R_M32R_10_PCREL_RELA
2970 || r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC		 2971 || r_type == R_M32R_26_PCREL_RELA
2972 || r_type == R_M32R_REL32)
6edf0760
NC		 2973 {
2974 BFD_ASSERT (h != NULL && h->dynindx != -1);
2975 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2976 outrel.r_addend = rel->r_addend;
2977 }
2978 else
2979 {
2980 /* h->dynindx may be -1 if this symbol was marked to
2981 become local. */
2982 if (h == NULL
2983 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2984 && h->def_regular))
6edf0760
NC		 2985 {
2986 relocate = TRUE;
2987 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2988 outrel.r_addend = relocation + rel->r_addend;
2989 }
2990 else
2991 {
2992 BFD_ASSERT (h->dynindx != -1);
2993 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2994 outrel.r_addend = relocation + rel->r_addend;
2995 }
2996 }
2997
2998 loc = sreloc->contents;
47b0e7ad 2999 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3000 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
3001 ++sreloc->reloc_count;
3002
3003 /* If this reloc is against an external symbol, we do
3004 not want to fiddle with the addend. Otherwise, we
3005 need to include the symbol value so that it becomes
3006 an addend for the dynamic reloc. */
3007 if (! relocate)
3008 continue;
8ce757c4 3009 break;
6edf0760 3010 }
8ce757c4
NC		 3011 else if (r_type != R_M32R_10_PCREL_RELA)
3012 break;
3013 /* Fall through. */
41978308 3014
252b5132
RH		 3015 case (int) R_M32R_10_PCREL :
3016 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
3017 contents, offset,
3018 sec, relocation, addend);
6edf0760 3019 goto check_reloc;
252b5132
RH		 3020
3021 case (int) R_M32R_HI16_SLO :
3022 case (int) R_M32R_HI16_ULO :
3023 {
3024 Elf_Internal_Rela *lorel;
3025
3026 /* We allow an arbitrary number of HI16 relocs before the
3027 LO16 reloc. This permits gcc to emit the HI and LO relocs
3028 itself. */
3029 for (lorel = rel + 1;
3030 (lorel < relend
3031 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
3032 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
3033 lorel++)
3034 continue;
3035 if (lorel < relend
3036 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3037 {
3038 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3039 contents, relocation + addend);
3040 r = bfd_reloc_ok;
3041 }
3042 else
3043 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3044 contents, offset,
3045 relocation, addend);
3046 }
6edf0760
NC		 3047
3048 goto check_reloc;
252b5132 3049
af705ba8 3050 case (int) R_M32R_SDA16_RELA:
252b5132
RH		 3051 case (int) R_M32R_SDA16 :
3052 {
3053 const char *name;
3054
3055 BFD_ASSERT (sec != NULL);
3056 name = bfd_get_section_name (abfd, sec);
3057
47b0e7ad 3058 if ( strcmp (name, ".sdata") == 0
252b5132
RH		 3059 || strcmp (name, ".sbss") == 0
3060 || strcmp (name, ".scommon") == 0)
3061 {
3062 bfd_vma sda_base;
3063 bfd *out_bfd = sec->output_section->owner;
3064
3065 r = m32r_elf_final_sda_base (out_bfd, info,
3066 &errmsg,
3067 &sda_base);
3068 if (r != bfd_reloc_ok)
3069 {
b34976b6 3070 ret = FALSE;
252b5132
RH		 3071 goto check_reloc;
3072 }
3073
3074 /* At this point `relocation' contains the object's
3075 address. */
3076 relocation -= sda_base;
3077 /* Now it contains the offset from _SDA_BASE_. */
3078 }
3079 else
3080 {
8f615d07 3081 (*_bfd_error_handler)
d003868e
AM		 3082 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3083 input_bfd,
3084 sec,
8f615d07 3085 sym_name,
d003868e 3086 m32r_elf_howto_table[(int) r_type].name);
252b5132 3087 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3088 ret = FALSE;
252b5132
RH		 3089 continue;
3090 }
3091 }
47b0e7ad 3092 /* Fall through. */
6edf0760
NC		 3093
3094 default : /* OLD_M32R_RELOC */
252b5132 3095
252b5132
RH		 3096 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3097 contents, offset,
3098 relocation, addend);
6edf0760 3099 goto check_reloc;
252b5132 3100 }
6edf0760
NC		 3101
3102 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3103 contents, rel->r_offset,
3104 relocation, rel->r_addend);
3105
252b5132
RH		 3106 }
3107
3108 check_reloc:
3109
3110 if (r != bfd_reloc_ok)
3111 {
3112 /* FIXME: This should be generic enough to go in a utility. */
3113 const char *name;
3114
3115 if (h != NULL)
3116 name = h->root.root.string;
3117 else
3118 {
3119 name = (bfd_elf_string_from_elf_section
3120 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3121 if (name == NULL || *name == '\0')
3122 name = bfd_section_name (input_bfd, sec);
3123 }
3124
3125 if (errmsg != NULL)
3126 goto common_error;
3127
3128 switch (r)
3129 {
3130 case bfd_reloc_overflow:
3131 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L		 3132 (info, (h ? &h->root : NULL), name, howto->name,
3133 (bfd_vma) 0, input_bfd, input_section, offset)))
b34976b6 3134 return FALSE;
252b5132
RH		 3135 break;
3136
3137 case bfd_reloc_undefined:
3138 if (! ((*info->callbacks->undefined_symbol)
3139 (info, name, input_bfd, input_section,
b34976b6
AM		 3140 offset, TRUE)))
3141 return FALSE;
252b5132
RH		 3142 break;
3143
3144 case bfd_reloc_outofrange:
3145 errmsg = _("internal error: out of range error");
3146 goto common_error;
3147
3148 case bfd_reloc_notsupported:
3149 errmsg = _("internal error: unsupported relocation error");
3150 goto common_error;
3151
3152 case bfd_reloc_dangerous:
3153 errmsg = _("internal error: dangerous error");
3154 goto common_error;
3155
3156 default:
3157 errmsg = _("internal error: unknown error");
3158 /* fall through */
3159
3160 common_error:
3161 if (!((*info->callbacks->warning)
3162 (info, errmsg, name, input_bfd, input_section,
3163 offset)))
b34976b6 3164 return FALSE;
252b5132
RH		 3165 break;
3166 }
3167 }
3168 }
3169
3170 return ret;
3171}
6edf0760
NC		 3172
3173/* Finish up dynamic symbol handling. We set the contents of various
3174 dynamic sections here. */
47b0e7ad 3175
6edf0760 3176static bfd_boolean
47b0e7ad
NC		 3177m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3178 struct bfd_link_info *info,
3179 struct elf_link_hash_entry *h,
3180 Elf_Internal_Sym *sym)
6edf0760
NC		 3181{
3182 struct elf_m32r_link_hash_table *htab;
3183 bfd *dynobj;
3184 bfd_byte *loc;
41978308 3185
6edf0760 3186#ifdef DEBUG_PIC
47b0e7ad 3187 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3188#endif
41978308 3189
6edf0760
NC		 3190 htab = m32r_elf_hash_table (info);
3191 dynobj = htab->root.dynobj;
3192
3193 if (h->plt.offset != (bfd_vma) -1)
3194 {
3195 asection *splt;
3196 asection *sgot;
3197 asection *srela;
3198
3199 bfd_vma plt_index;
3200 bfd_vma got_offset;
3201 Elf_Internal_Rela rela;
41978308 3202
6edf0760
NC		 3203 /* This symbol has an entry in the procedure linkage table. Set
3204 it up. */
41978308 3205
6edf0760 3206 BFD_ASSERT (h->dynindx != -1);
41978308 3207
6edf0760
NC		 3208 splt = htab->splt;
3209 sgot = htab->sgotplt;
3210 srela = htab->srelplt;
3211 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3212
3213 /* Get the index in the procedure linkage table which
3214 corresponds to this symbol. This is the index of this symbol
3215 in all the symbols for which we are making plt entries. The
3216 first entry in the procedure linkage table is reserved. */
3217 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3218
3219 /* Get the offset into the .got table of the entry that
3220 corresponds to this function. Each .got entry is 4 bytes.
3221 The first three are reserved. */
3222 got_offset = (plt_index + 3) * 4;
3223
3224 /* Fill in the entry in the procedure linkage table. */
3225 if (! info->shared)
3226 {
3227 bfd_put_32 (output_bfd,
3228 (PLT_ENTRY_WORD0b
3229 + (((sgot->output_section->vma
3230 + sgot->output_offset
3231 + got_offset) >> 16) & 0xffff)),
3232 splt->contents + h->plt.offset);
3233 bfd_put_32 (output_bfd,
3234 (PLT_ENTRY_WORD1b
3235 + ((sgot->output_section->vma
3236 + sgot->output_offset
3237 + got_offset) & 0xffff)),
3238 splt->contents + h->plt.offset + 4);
3239 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3240 splt->contents + h->plt.offset + 8);
3241 bfd_put_32 (output_bfd,
3242 (PLT_ENTRY_WORD3
3243 + plt_index * sizeof (Elf32_External_Rela)),
3244 splt->contents + h->plt.offset + 12);
3245 bfd_put_32 (output_bfd,
3246 (PLT_ENTRY_WORD4
3247 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3248 splt->contents + h->plt.offset + 16);
3249 }
3250 else
3251 {
3252 bfd_put_32 (output_bfd,
3253 PLT_ENTRY_WORD0 + got_offset,
3254 splt->contents + h->plt.offset);
3255 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3256 splt->contents + h->plt.offset + 4);
3257 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3258 splt->contents + h->plt.offset + 8);
3259 bfd_put_32 (output_bfd,
3260 (PLT_ENTRY_WORD3
3261 + plt_index * sizeof (Elf32_External_Rela)),
3262 splt->contents + h->plt.offset + 12);
3263 bfd_put_32 (output_bfd,
3264 (PLT_ENTRY_WORD4
3265 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3266 splt->contents + h->plt.offset + 16);
3267 }
41978308 3268
6edf0760
NC		 3269 /* Fill in the entry in the global offset table. */
3270 bfd_put_32 (output_bfd,
3271 (splt->output_section->vma
3272 + splt->output_offset
3273 + h->plt.offset
3274 + 12), /* same offset */
3275 sgot->contents + got_offset);
3276
3277 /* Fill in the entry in the .rela.plt section. */
3278 rela.r_offset = (sgot->output_section->vma
3279 + sgot->output_offset
3280 + got_offset);
3281 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3282 rela.r_addend = 0;
3283 loc = srela->contents;
47b0e7ad 3284 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3285 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3286
f5385ebf 3287 if (!h->def_regular)
6edf0760
NC		 3288 {
3289 /* Mark the symbol as undefined, rather than as defined in
3290 the .plt section. Leave the value alone. */
3291 sym->st_shndx = SHN_UNDEF;
3292 }
3293 }
3294
3295 if (h->got.offset != (bfd_vma) -1)
3296 {
3297 asection *sgot;
3298 asection *srela;
3299 Elf_Internal_Rela rela;
41978308 3300
6edf0760
NC		 3301 /* This symbol has an entry in the global offset table. Set it
3302 up. */
41978308 3303
6edf0760
NC		 3304 sgot = htab->sgot;
3305 srela = htab->srelgot;
3306 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3307
6edf0760
NC		 3308 rela.r_offset = (sgot->output_section->vma
3309 + sgot->output_offset
3310 + (h->got.offset &~ 1));
41978308 3311
6edf0760
NC		 3312 /* If this is a -Bsymbolic link, and the symbol is defined
3313 locally, we just want to emit a RELATIVE reloc. Likewise if
3314 the symbol was forced to be local because of a version file.
3315 The entry in the global offset table will already have been
3316 initialized in the relocate_section function. */
3317 if (info->shared
3318 && (info->symbolic
3319 || h->dynindx == -1
f5385ebf
AM		 3320 || h->forced_local)
3321 && h->def_regular)
6edf0760
NC		 3322 {
3323 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3324 rela.r_addend = (h->root.u.def.value
3325 + h->root.u.def.section->output_section->vma
3326 + h->root.u.def.section->output_offset);
3327 }
3328 else
3329 {
47b0e7ad 3330 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC		 3331 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3332 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3333 rela.r_addend = 0;
3334 }
41978308 3335
6edf0760 3336 loc = srela->contents;
47b0e7ad 3337 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3338 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3339 ++srela->reloc_count;
3340 }
41978308 3341
f5385ebf 3342 if (h->needs_copy)
6edf0760
NC		 3343 {
3344 asection *s;
3345 Elf_Internal_Rela rela;
41978308 3346
6edf0760 3347 /* This symbols needs a copy reloc. Set it up. */
41978308 3348
6edf0760
NC		 3349 BFD_ASSERT (h->dynindx != -1
3350 && (h->root.type == bfd_link_hash_defined
3351 || h->root.type == bfd_link_hash_defweak));
41978308 3352
6edf0760
NC		 3353 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3354 ".rela.bss");
3355 BFD_ASSERT (s != NULL);
41978308 3356
6edf0760
NC		 3357 rela.r_offset = (h->root.u.def.value
3358 + h->root.u.def.section->output_section->vma
3359 + h->root.u.def.section->output_offset);
3360 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3361 rela.r_addend = 0;
3362 loc = s->contents;
47b0e7ad 3363 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3364 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3365 ++s->reloc_count;
3366 }
41978308 3367
6edf0760
NC		 3368 /* Mark some specially defined symbols as absolute. */
3369 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
22edb2f1 3370 || h == htab->root.hgot)
6edf0760 3371 sym->st_shndx = SHN_ABS;
41978308 3372
6edf0760
NC		 3373 return TRUE;
3374}
3375
3376
3377/* Finish up the dynamic sections. */
41978308 3378
6edf0760 3379static bfd_boolean
47b0e7ad
NC		 3380m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3381 struct bfd_link_info *info)
6edf0760
NC		 3382{
3383 struct elf_m32r_link_hash_table *htab;
3384 bfd *dynobj;
3385 asection *sdyn;
3386 asection *sgot;
3387
3388#ifdef DEBUG_PIC
47b0e7ad 3389 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3390#endif
41978308 3391
6edf0760
NC		 3392 htab = m32r_elf_hash_table (info);
3393 dynobj = htab->root.dynobj;
3394
3395 sgot = htab->sgotplt;
3396 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
41978308 3397
6edf0760
NC		 3398 if (htab->root.dynamic_sections_created)
3399 {
3400 asection *splt;
3401 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3402
6edf0760 3403 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3404
6edf0760 3405 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3406 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC		 3407
3408 for (; dyncon < dynconend; dyncon++)
3409 {
3410 Elf_Internal_Dyn dyn;
3411 const char *name;
3412 asection *s;
41978308 3413
6edf0760 3414 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3415
6edf0760
NC		 3416 switch (dyn.d_tag)
3417 {
3418 default:
3419 break;
3420
3421 case DT_PLTGOT:
3422 name = ".got";
41978308 3423 s = htab->sgot->output_section;
6edf0760
NC		 3424 goto get_vma;
3425 case DT_JMPREL:
3426 name = ".rela.plt";
3427 s = htab->srelplt->output_section;
3428 get_vma:
3429 BFD_ASSERT (s != NULL);
3430 dyn.d_un.d_ptr = s->vma;
3431 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3432 break;
3433
3434 case DT_PLTRELSZ:
3435 s = htab->srelplt->output_section;
3436 BFD_ASSERT (s != NULL);
eea6121a 3437 dyn.d_un.d_val = s->size;
6edf0760
NC		 3438 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3439 break;
3440
3441 case DT_RELASZ:
3442 /* My reading of the SVR4 ABI indicates that the
3443 procedure linkage table relocs (DT_JMPREL) should be
3444 included in the overall relocs (DT_RELA). This is
3445 what Solaris does. However, UnixWare can not handle
3446 that case. Therefore, we override the DT_RELASZ entry
3447 here to make it not include the JMPREL relocs. Since
3448 the linker script arranges for .rela.plt to follow all
3449 other relocation sections, we don't have to worry
3450 about changing the DT_RELA entry. */
3451 if (htab->srelplt != NULL)
3452 {
3453 s = htab->srelplt->output_section;
eea6121a 3454 dyn.d_un.d_val -= s->size;
6edf0760
NC		 3455 }
3456 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3457 break;
3458 }
3459 }
41978308 3460
6edf0760
NC		 3461 /* Fill in the first entry in the procedure linkage table. */
3462 splt = htab->splt;
eea6121a 3463 if (splt && splt->size > 0)
6edf0760
NC		 3464 {
3465 if (info->shared)
3466 {
3467 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3468 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3469 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3470 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3471 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3472 }
3473 else
3474 {
3475 unsigned long addr;
3476 /* addr = .got + 4 */
3477 addr = sgot->output_section->vma + sgot->output_offset + 4;
3478 bfd_put_32 (output_bfd,
3479 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3480 splt->contents);
41978308 3481 bfd_put_32 (output_bfd,
6edf0760
NC		 3482 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3483 splt->contents + 4);
3484 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3485 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3486 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3487 }
3488
3489 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3490 PLT_ENTRY_SIZE;
3491 }
3492 }
3493
3494 /* Fill in the first three entries in the global offset table. */
eea6121a 3495 if (sgot && sgot->size > 0)
6edf0760
NC		 3496 {
3497 if (sdyn == NULL)
3498 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3499 else
3500 bfd_put_32 (output_bfd,
3501 sdyn->output_section->vma + sdyn->output_offset,
3502 sgot->contents);
3503 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3504 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3505
3506 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3507 }
41978308 3508
6edf0760
NC		 3509 return TRUE;
3510}
3511
252b5132
RH		 3512\f
3513/* Set the right machine number. */
47b0e7ad 3514
b34976b6 3515static bfd_boolean
47b0e7ad 3516m32r_elf_object_p (bfd *abfd)
252b5132
RH		 3517{
3518 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3519 {
3520 default:
3521 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3522 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3523 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3524 }
b34976b6 3525 return TRUE;
252b5132
RH		 3526}
3527
3528/* Store the machine number in the flags field. */
47b0e7ad 3529
252b5132 3530static void
47b0e7ad
NC		 3531m32r_elf_final_write_processing (bfd *abfd,
3532 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH		 3533{
3534 unsigned long val;
3535
3536 switch (bfd_get_mach (abfd))
3537 {
3538 default:
3539 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3540 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3541 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH		 3542 }
3543
3544 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3545 elf_elfheader (abfd)->e_flags |= val;
3546}
3547
c3668558 3548/* Function to keep M32R specific file flags. */
47b0e7ad 3549
b34976b6 3550static bfd_boolean
47b0e7ad 3551m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH		 3552{
3553 BFD_ASSERT (!elf_flags_init (abfd)
3554 || elf_elfheader (abfd)->e_flags == flags);
3555
3556 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM		 3557 elf_flags_init (abfd) = TRUE;
3558 return TRUE;
252b5132
RH		 3559}
3560
252b5132
RH		 3561/* Merge backend specific data from an object file to the output
3562 object file when linking. */
47b0e7ad 3563
b34976b6 3564static bfd_boolean
47b0e7ad 3565m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH		 3566{
3567 flagword out_flags;
3568 flagword in_flags;
3569
3570 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3571 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3572 return TRUE;
252b5132
RH		 3573
3574 in_flags = elf_elfheader (ibfd)->e_flags;
3575 out_flags = elf_elfheader (obfd)->e_flags;
3576
3577 if (! elf_flags_init (obfd))
3578 {
3579 /* If the input is the default architecture then do not
3580 bother setting the flags for the output architecture,
3581 instead allow future merges to do this. If no future
3582 merges ever set these flags then they will retain their
3583 unitialised values, which surprise surprise, correspond
3584 to the default values. */
3585 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3586 return TRUE;
c3668558 3587
b34976b6 3588 elf_flags_init (obfd) = TRUE;
252b5132
RH		 3589 elf_elfheader (obfd)->e_flags = in_flags;
3590
3591 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3592 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC		 3593 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3594 bfd_get_mach (ibfd));
252b5132 3595
b34976b6 3596 return TRUE;
252b5132
RH		 3597 }
3598
3599 /* Check flag compatibility. */
3600 if (in_flags == out_flags)
b34976b6 3601 return TRUE;
252b5132
RH		 3602
3603 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3604 {
88845958
NC		 3605 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3606 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3607 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3608 {
8f615d07 3609 (*_bfd_error_handler)
d003868e 3610 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH		 3611
3612 bfd_set_error (bfd_error_bad_value);
b34976b6 3613 return FALSE;
252b5132
RH		 3614 }
3615 }
3616
b34976b6 3617 return TRUE;
252b5132
RH		 3618}
3619
47b0e7ad
NC		 3620/* Display the flags field. */
3621
b34976b6 3622static bfd_boolean
47b0e7ad 3623m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH		 3624{
3625 FILE * file = (FILE *) ptr;
c3668558 3626
f12123c0 3627 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3628
252b5132 3629 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3630
252b5132 3631 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3632
252b5132
RH		 3633 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3634 {
3635 default:
3636 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3637 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3638 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3639 }
c3668558 3640
252b5132 3641 fputc ('\n', file);
c3668558 3642
b34976b6 3643 return TRUE;
252b5132
RH		 3644}
3645
47b0e7ad
NC		 3646static asection *
3647m32r_elf_gc_mark_hook (asection *sec,
07adf181 3648 struct bfd_link_info *info,
47b0e7ad
NC		 3649 Elf_Internal_Rela *rel,
3650 struct elf_link_hash_entry *h,
3651 Elf_Internal_Sym *sym)
252b5132
RH		 3652{
3653 if (h != NULL)
07adf181 3654 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH		 3655 {
3656 case R_M32R_GNU_VTINHERIT:
3657 case R_M32R_GNU_VTENTRY:
6edf0760
NC		 3658 case R_M32R_RELA_GNU_VTINHERIT:
3659 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM		 3660 return NULL;
3661 }
1e2f5b6e 3662
07adf181 3663 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH		 3664}
3665
b34976b6 3666static bfd_boolean
47b0e7ad
NC		 3667m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3668 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3669 asection *sec ATTRIBUTE_UNUSED,
3670 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3671{
6edf0760
NC		 3672 /* Update the got entry reference counts for the section being removed. */
3673 Elf_Internal_Shdr *symtab_hdr;
3674 struct elf_link_hash_entry **sym_hashes;
3675 bfd_signed_vma *local_got_refcounts;
3676 const Elf_Internal_Rela *rel, *relend;
6edf0760
NC		 3677
3678 elf_section_data (sec)->local_dynrel = NULL;
3679
3680 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3681 sym_hashes = elf_sym_hashes (abfd);
3682 local_got_refcounts = elf_local_got_refcounts (abfd);
3683
3684 relend = relocs + sec->reloc_count;
3685 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM		 3686 {
3687 unsigned long r_symndx;
3688 struct elf_link_hash_entry *h = NULL;
6edf0760 3689
3eb128b2
AM		 3690 r_symndx = ELF32_R_SYM (rel->r_info);
3691 if (r_symndx >= symtab_hdr->sh_info)
3692 {
3693 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3694 while (h->root.type == bfd_link_hash_indirect
3695 || h->root.type == bfd_link_hash_warning)
3696 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3697 }
6edf0760 3698
3eb128b2
AM		 3699 switch (ELF32_R_TYPE (rel->r_info))
3700 {
3701 case R_M32R_GOT16_HI_ULO:
3702 case R_M32R_GOT16_HI_SLO:
3703 case R_M32R_GOT16_LO:
3704 case R_M32R_GOTOFF:
3705 case R_M32R_GOTOFF_HI_ULO:
3706 case R_M32R_GOTOFF_HI_SLO:
3707 case R_M32R_GOTOFF_LO:
3708 case R_M32R_GOT24:
3709 case R_M32R_GOTPC_HI_ULO:
3710 case R_M32R_GOTPC_HI_SLO:
3711 case R_M32R_GOTPC_LO:
3712 case R_M32R_GOTPC24:
3713 if (h != NULL)
3714 {
3715 if (h->got.refcount > 0)
3716 h->got.refcount--;
3717 }
3718 else
3719 {
3720 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3721 local_got_refcounts[r_symndx]--;
3722 }
3723 break;
3724
3725 case R_M32R_16_RELA:
3726 case R_M32R_24_RELA:
3727 case R_M32R_32_RELA:
157e7bd1 3728 case R_M32R_REL32:
3eb128b2
AM		 3729 case R_M32R_HI16_ULO_RELA:
3730 case R_M32R_HI16_SLO_RELA:
3731 case R_M32R_LO16_RELA:
3732 case R_M32R_SDA16_RELA:
8ce757c4 3733 case R_M32R_10_PCREL_RELA:
3eb128b2
AM		 3734 case R_M32R_18_PCREL_RELA:
3735 case R_M32R_26_PCREL_RELA:
3736 if (h != NULL)
3737 {
3738 struct elf_m32r_link_hash_entry *eh;
3739 struct elf_m32r_dyn_relocs **pp;
3740 struct elf_m32r_dyn_relocs *p;
6edf0760 3741
3eb128b2
AM		 3742 if (!info->shared && h->plt.refcount > 0)
3743 h->plt.refcount -= 1;
6edf0760 3744
3eb128b2 3745 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3746
3eb128b2
AM		 3747 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3748 if (p->sec == sec)
3749 {
8ce757c4
NC		 3750 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3751 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3752 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
157e7bd1 3753 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3eb128b2
AM		 3754 p->pc_count -= 1;
3755 p->count -= 1;
3756 if (p->count == 0)
3757 *pp = p->next;
3758 break;
3759 }
3760 }
3761 break;
6edf0760 3762
3eb128b2
AM		 3763 case R_M32R_26_PLTREL:
3764 if (h != NULL)
3765 {
3766 if (h->plt.refcount > 0)
3767 h->plt.refcount--;
3768 }
3769 break;
6edf0760 3770
3eb128b2
AM		 3771 default:
3772 break;
3773 }
3774 }
6edf0760 3775
b34976b6 3776 return TRUE;
252b5132
RH		 3777}
3778
252b5132
RH		 3779/* Look through the relocs for a section during the first phase.
3780 Since we don't do .gots or .plts, we just need to consider the
3781 virtual table relocs for gc. */
c3668558 3782
b34976b6 3783static bfd_boolean
47b0e7ad
NC		 3784m32r_elf_check_relocs (bfd *abfd,
3785 struct bfd_link_info *info,
3786 asection *sec,
3787 const Elf_Internal_Rela *relocs)
252b5132
RH		 3788{
3789 Elf_Internal_Shdr *symtab_hdr;
3790 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3791 const Elf_Internal_Rela *rel;
3792 const Elf_Internal_Rela *rel_end;
6edf0760
NC		 3793 struct elf_m32r_link_hash_table *htab;
3794 bfd *dynobj;
3795 bfd_vma *local_got_offsets;
3796 asection *sgot, *srelgot, *sreloc;
c3668558 3797
1049f94e 3798 if (info->relocatable)
b34976b6 3799 return TRUE;
c3668558 3800
6edf0760
NC		 3801 sgot = srelgot = sreloc = NULL;
3802
252b5132
RH		 3803 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3804 sym_hashes = elf_sym_hashes (abfd);
c3668558 3805 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
252b5132
RH		 3806 if (!elf_bad_symtab (abfd))
3807 sym_hashes_end -= symtab_hdr->sh_info;
c3668558 3808
6edf0760
NC		 3809 htab = m32r_elf_hash_table (info);
3810 dynobj = htab->root.dynobj;
3811 local_got_offsets = elf_local_got_offsets (abfd);
3812
252b5132
RH		 3813 rel_end = relocs + sec->reloc_count;
3814 for (rel = relocs; rel < rel_end; rel++)
3815 {
6edf0760 3816 int r_type;
252b5132
RH		 3817 struct elf_link_hash_entry *h;
3818 unsigned long r_symndx;
c3668558 3819
252b5132 3820 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3821 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH		 3822 if (r_symndx < symtab_hdr->sh_info)
3823 h = NULL;
3824 else
973a3492
L		 3825 {
3826 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3827 while (h->root.type == bfd_link_hash_indirect
3828 || h->root.type == bfd_link_hash_warning)
3829 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3830 }
c3668558 3831
6edf0760
NC		 3832 /* Some relocs require a global offset table. */
3833 if (htab->sgot == NULL)
3834 {
3835 switch (r_type)
3836 {
3837 case R_M32R_GOT16_HI_ULO:
3838 case R_M32R_GOT16_HI_SLO:
097f809a
NC		 3839 case R_M32R_GOTOFF:
3840 case R_M32R_GOTOFF_HI_ULO:
3841 case R_M32R_GOTOFF_HI_SLO:
3842 case R_M32R_GOTOFF_LO:
6edf0760
NC		 3843 case R_M32R_GOT16_LO:
3844 case R_M32R_GOTPC24:
3845 case R_M32R_GOTPC_HI_ULO:
3846 case R_M32R_GOTPC_HI_SLO:
3847 case R_M32R_GOTPC_LO:
3848 case R_M32R_GOT24:
3849 if (dynobj == NULL)
3850 htab->root.dynobj = dynobj = abfd;
3851 if (! create_got_section (dynobj, info))
3852 return FALSE;
3853 break;
3854
3855 default:
3856 break;
3857 }
3858 }
3859
3860 switch (r_type)
252b5132 3861 {
6edf0760
NC		 3862 case R_M32R_GOT16_HI_ULO:
3863 case R_M32R_GOT16_HI_SLO:
41978308 3864 case R_M32R_GOT16_LO:
6edf0760
NC		 3865 case R_M32R_GOT24:
3866
3867 if (h != NULL)
3868 h->got.refcount += 1;
3869 else
3870 {
3871 bfd_signed_vma *local_got_refcounts;
3872
3873 /* This is a global offset table entry for a local
3874 symbol. */
3875 local_got_refcounts = elf_local_got_refcounts (abfd);
3876 if (local_got_refcounts == NULL)
3877 {
3878 bfd_size_type size;
3879
3880 size = symtab_hdr->sh_info;
3881 size *= sizeof (bfd_signed_vma);
47b0e7ad 3882 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC		 3883 if (local_got_refcounts == NULL)
3884 return FALSE;
3885 elf_local_got_refcounts (abfd) = local_got_refcounts;
3886 }
3887 local_got_refcounts[r_symndx] += 1;
3888 }
3889 break;
3890
3891 case R_M32R_26_PLTREL:
3892 /* This symbol requires a procedure linkage table entry. We
3893 actually build the entry in adjust_dynamic_symbol,
3894 because this might be a case of linking PIC code without
3895 linking in any dynamic objects, in which case we don't
3896 need to generate a procedure linkage table after all. */
41978308 3897
6edf0760
NC		 3898 /* If this is a local symbol, we resolve it directly without
3899 creating a procedure linkage table entry. */
3900 if (h == NULL)
3901 continue;
3902
f5385ebf 3903 if (h->forced_local)
6edf0760
NC		 3904 break;
3905
f5385ebf 3906 h->needs_plt = 1;
6edf0760
NC		 3907 h->plt.refcount += 1;
3908 break;
3909
3910 case R_M32R_16_RELA:
3911 case R_M32R_24_RELA:
3912 case R_M32R_32_RELA:
157e7bd1 3913 case R_M32R_REL32:
6edf0760
NC		 3914 case R_M32R_HI16_ULO_RELA:
3915 case R_M32R_HI16_SLO_RELA:
3916 case R_M32R_LO16_RELA:
3917 case R_M32R_SDA16_RELA:
8ce757c4 3918 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 3919 case R_M32R_18_PCREL_RELA:
3920 case R_M32R_26_PCREL_RELA:
3921
3922 if (h != NULL && !info->shared)
3923 {
f5385ebf 3924 h->non_got_ref = 1;
6edf0760
NC		 3925 h->plt.refcount += 1;
3926 }
3927
3928 /* If we are creating a shared library, and this is a reloc
3929 against a global symbol, or a non PC relative reloc
3930 against a local symbol, then we need to copy the reloc
3931 into the shared library. However, if we are linking with
3932 -Bsymbolic, we do not need to copy a reloc against a
3933 global symbol which is defined in an object we are
3934 including in the link (i.e., DEF_REGULAR is set). At
3935 this point we have not seen all the input files, so it is
3936 possible that DEF_REGULAR is not set now but will be set
3937 later (it is never cleared). We account for that
3938 possibility below by storing information in the
3939 dyn_relocs field of the hash table entry. A similar
3940 situation occurs when creating shared libraries and symbol
3941 visibility changes render the symbol local.
3942
3943 If on the other hand, we are creating an executable, we
3944 may need to keep relocations for symbols satisfied by a
3945 dynamic library if we manage to avoid copy relocs for the
3946 symbol. */
3947 if ((info->shared
3948 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3949 && (( r_type != R_M32R_26_PCREL_RELA
157e7bd1 3950 && r_type != R_M32R_18_PCREL_RELA
8ce757c4 3951 && r_type != R_M32R_10_PCREL_RELA
157e7bd1 3952 && r_type != R_M32R_REL32)
6edf0760
NC		 3953 || (h != NULL
3954 && (! info->symbolic
3955 || h->root.type == bfd_link_hash_defweak
f5385ebf 3956 || !h->def_regular))))
6edf0760
NC		 3957 || (!info->shared
3958 && (sec->flags & SEC_ALLOC) != 0
3959 && h != NULL
3960 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3961 || !h->def_regular)))
6edf0760
NC		 3962 {
3963 struct elf_m32r_dyn_relocs *p;
3964 struct elf_m32r_dyn_relocs **head;
3965
3966 if (dynobj == NULL)
3967 htab->root.dynobj = dynobj = abfd;
3968
3969 /* When creating a shared object, we must copy these
3970 relocs into the output file. We create a reloc
3971 section in dynobj and make room for the reloc. */
3972 if (sreloc == NULL)
3973 {
3974 const char *name;
41978308 3975
6edf0760
NC		 3976 name = (bfd_elf_string_from_elf_section
3977 (abfd,
3978 elf_elfheader (abfd)->e_shstrndx,
3979 elf_section_data (sec)->rel_hdr.sh_name));
3980 if (name == NULL)
3981 return FALSE;
41978308 3982
0112cd26 3983 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
6edf0760
NC		 3984 && strcmp (bfd_get_section_name (abfd, sec),
3985 name + 5) == 0);
41978308 3986
6edf0760
NC		 3987 sreloc = bfd_get_section_by_name (dynobj, name);
3988 if (sreloc == NULL)
3989 {
3990 flagword flags;
41978308 3991
6edf0760
NC		 3992 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3993 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3994 if ((sec->flags & SEC_ALLOC) != 0)
3995 flags |= SEC_ALLOC | SEC_LOAD;
3496cb2a
L		 3996 sreloc = bfd_make_section_with_flags (dynobj,
3997 name,
3998 flags);
6edf0760 3999 if (sreloc == NULL
6edf0760
NC		 4000 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
4001 return FALSE;
4002 }
4003 elf_section_data (sec)->sreloc = sreloc;
4004 }
41978308 4005
6edf0760
NC		 4006 /* If this is a global symbol, we count the number of
4007 relocations we need for this symbol. */
4008 if (h != NULL)
4009 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
4010 else
4011 {
4012 asection *s;
6edfbbad 4013 void *vpp;
6edf0760
NC		 4014
4015 /* Track dynamic relocs needed for local syms too. */
4016 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
4017 sec, r_symndx);
4018 if (s == NULL)
4019 return FALSE;
4020
6edfbbad
DJ		 4021 vpp = &elf_section_data (s)->local_dynrel;
4022 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC		 4023 }
4024
4025 p = *head;
4026 if (p == NULL || p->sec != sec)
4027 {
4028 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC		 4029
4030 p = bfd_alloc (dynobj, amt);
6edf0760
NC		 4031 if (p == NULL)
4032 return FALSE;
4033 p->next = *head;
4034 *head = p;
4035 p->sec = sec;
4036 p->count = 0;
4037 p->pc_count = 0;
4038 }
4039
4040 p->count += 1;
8ce757c4
NC		 4041 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
4042 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
4043 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
4044 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
6edf0760
NC		 4045 p->pc_count += 1;
4046 }
4047 break;
4048
252b5132
RH		 4049 /* This relocation describes the C++ object vtable hierarchy.
4050 Reconstruct it for later use during GC. */
6edf0760 4051 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 4052 case R_M32R_GNU_VTINHERIT:
c152c796 4053 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4054 return FALSE;
252b5132 4055 break;
c3668558 4056
252b5132
RH		 4057 /* This relocation describes which C++ vtable entries are actually
4058 used. Record for later use during GC. */
4059 case R_M32R_GNU_VTENTRY:
c152c796 4060 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 4061 return FALSE;
252b5132 4062 break;
6edf0760 4063 case R_M32R_RELA_GNU_VTENTRY:
c152c796 4064 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC		 4065 return FALSE;
4066 break;
252b5132
RH		 4067 }
4068 }
c3668558 4069
b34976b6 4070 return TRUE;
252b5132 4071}
2f89ff8d 4072
b35d266b 4073static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 4074{
0112cd26
NC		 4075 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
4076 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4077 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 4078};
4079
6edf0760 4080static bfd_boolean
47b0e7ad
NC		 4081m32r_elf_fake_sections (bfd *abfd,
4082 Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED,
4083 asection *sec)
6edf0760 4084{
47b0e7ad 4085 const char *name;
6edf0760
NC		 4086
4087 name = bfd_get_section_name (abfd, sec);
4088
4089 /* The generic elf_fake_sections will set up REL_HDR using the
4090 default kind of relocations. But, we may actually need both
4091 kinds of relocations, so we set up the second header here.
4092
4093 This is not necessary for the O32 ABI since that only uses Elf32_Rel
4094 relocations (cf. System V ABI, MIPS RISC Processor Supplement,
4095 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
4096 of the resulting empty .rela.<section> sections starts with
4097 sh_offset == object size, and ld doesn't allow that. While the check
4098 is arguably bogus for empty or SHT_NOBITS sections, it can easily be
4099 avoided by not emitting those useless sections in the first place. */
4100 if ((sec->flags & SEC_RELOC) != 0)
4101 {
4102 struct bfd_elf_section_data *esd;
4103 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
4104
4105 esd = elf_section_data (sec);
4106 BFD_ASSERT (esd->rel_hdr2 == NULL);
47b0e7ad 4107 esd->rel_hdr2 = bfd_zalloc (abfd, amt);
6edf0760
NC		 4108 if (!esd->rel_hdr2)
4109 return FALSE;
4110 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
4111 !sec->use_rela_p);
4112 }
4113
4114 return TRUE;
4115}
4116
4117static enum elf_reloc_type_class
47b0e7ad 4118m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
6edf0760
NC		 4119{
4120 switch ((int) ELF32_R_TYPE (rela->r_info))
4121 {
47b0e7ad
NC		 4122 case R_M32R_RELATIVE: return reloc_class_relative;
4123 case R_M32R_JMP_SLOT: return reloc_class_plt;
4124 case R_M32R_COPY: return reloc_class_copy;
4125 default: return reloc_class_normal;
6edf0760
NC		 4126 }
4127}
252b5132 4128\f
252b5132 4129#define ELF_ARCH bfd_arch_m32r
aa4f99bb
AO		 4130#define ELF_MACHINE_CODE EM_M32R
4131#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4132#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132
RH		 4133
4134#define TARGET_BIG_SYM bfd_elf32_m32r_vec
4135#define TARGET_BIG_NAME "elf32-m32r"
6edf0760
NC		 4136#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4137#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4138
6edf0760 4139#define elf_info_to_howto m32r_info_to_howto
252b5132
RH		 4140#define elf_info_to_howto_rel m32r_info_to_howto_rel
4141#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4142#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4143#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4144#define elf_backend_relocate_section m32r_elf_relocate_section
4145#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4146#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4147#define elf_backend_check_relocs m32r_elf_check_relocs
4148
6edf0760
NC		 4149#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4150#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4151#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
74541ad4
AM		 4152#define elf_backend_omit_section_dynsym \
4153 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
6edf0760
NC		 4154#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4155#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4156#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4157#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4158#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4159
252b5132 4160#define elf_backend_can_gc_sections 1
6edf0760 4161/*#if !USE_REL
b491616a 4162#define elf_backend_rela_normal 1
6edf0760
NC		 4163#endif*/
4164#define elf_backend_can_refcount 1
4165#define elf_backend_want_got_plt 1
4166#define elf_backend_plt_readonly 1
4167#define elf_backend_want_plt_sym 0
4168#define elf_backend_got_header_size 12
4169
4170#define elf_backend_may_use_rel_p 1
4171#ifdef USE_M32R_OLD_RELOC
4172#define elf_backend_default_use_rela_p 0
4173#define elf_backend_may_use_rela_p 0
4174#else
4175#define elf_backend_default_use_rela_p 1
4176#define elf_backend_may_use_rela_p 1
4177#define elf_backend_fake_sections m32r_elf_fake_sections
b491616a 4178#endif
6edf0760 4179
252b5132
RH		 4180#define elf_backend_object_p m32r_elf_object_p
4181#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH		 4182#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4183#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4184#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4185#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4186
252b5132 4187#include "elf32-target.h"
6edf0760 4188
47b0e7ad 4189#undef ELF_MAXPAGESIZE
6edf0760
NC		 4190#define ELF_MAXPAGESIZE 0x1000
4191
47b0e7ad 4192#undef TARGET_BIG_SYM
6edf0760 4193#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
47b0e7ad 4194#undef TARGET_BIG_NAME
6edf0760 4195#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4196#undef TARGET_LITTLE_SYM
6edf0760 4197#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
47b0e7ad 4198#undef TARGET_LITTLE_NAME
6edf0760 4199#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4200#undef elf32_bed
6edf0760
NC		 4201#define elf32_bed elf32_m32r_lin_bed
4202
4203#include "elf32-target.h"
4204
GDB Binutils - Deliverables
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