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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;
6edf0760
NC		 1836
1837#ifdef DEBUG_PIC
47b0e7ad 1838 printf ("m32r_elf_adjust_dynamic_symbol()\n");
6edf0760 1839#endif
41978308 1840
6edf0760 1841 dynobj = elf_hash_table (info)->dynobj;
41978308 1842
6edf0760
NC		 1843 /* Make sure we know what is going on here. */
1844 BFD_ASSERT (dynobj != NULL
f5385ebf 1845 && (h->needs_plt
f6e332e6 1846 || h->u.weakdef != NULL
f5385ebf
AM		 1847 || (h->def_dynamic
1848 && h->ref_regular
1849 && !h->def_regular)));
6edf0760 1850
6edf0760
NC		 1851 /* If this is a function, put it in the procedure linkage table. We
1852 will fill in the contents of the procedure linkage table later,
1853 when we know the address of the .got section. */
1854 if (h->type == STT_FUNC
f5385ebf 1855 || h->needs_plt)
6edf0760
NC		 1856 {
1857 if (! info->shared
f5385ebf
AM		 1858 && !h->def_dynamic
1859 && !h->ref_dynamic
6edf0760
NC		 1860 && h->root.type != bfd_link_hash_undefweak
1861 && h->root.type != bfd_link_hash_undefined)
1862 {
1863 /* This case can occur if we saw a PLT reloc in an input
1864 file, but the symbol was never referred to by a dynamic
1865 object. In such a case, we don't actually need to build
1866 a procedure linkage table, and we can just do a PCREL
1867 reloc instead. */
1868 h->plt.offset = (bfd_vma) -1;
f5385ebf 1869 h->needs_plt = 0;
6edf0760
NC		 1870 }
1871
1872 return TRUE;
1873 }
1874 else
1875 h->plt.offset = (bfd_vma) -1;
41978308 1876
6edf0760
NC		 1877 /* If this is a weak symbol, and there is a real definition, the
1878 processor independent code will have arranged for us to see the
1879 real definition first, and we can just use the same value. */
f6e332e6 1880 if (h->u.weakdef != NULL)
6edf0760 1881 {
f6e332e6
AM		 1882 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1883 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1884 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1885 h->root.u.def.value = h->u.weakdef->root.u.def.value;
6edf0760
NC		 1886 return TRUE;
1887 }
41978308 1888
6edf0760
NC		 1889 /* This is a reference to a symbol defined by a dynamic object which
1890 is not a function. */
41978308 1891
6edf0760
NC		 1892 /* If we are creating a shared library, we must presume that the
1893 only references to the symbol are via the global offset table.
1894 For such cases we need not do anything here; the relocations will
1895 be handled correctly by relocate_section. */
1896 if (info->shared)
1897 return TRUE;
41978308 1898
6edf0760
NC		 1899 /* If there are no references to this symbol that do not use the
1900 GOT, we don't need to generate a copy reloc. */
f5385ebf 1901 if (!h->non_got_ref)
6edf0760
NC		 1902 return TRUE;
1903
1904 /* If -z nocopyreloc was given, we won't generate them either. */
1905 if (info->nocopyreloc)
1906 {
f5385ebf 1907 h->non_got_ref = 0;
6edf0760
NC		 1908 return TRUE;
1909 }
1910
1911 eh = (struct elf_m32r_link_hash_entry *) h;
1912 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1913 {
1914 s = p->sec->output_section;
1915 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1916 break;
1917 }
1918
1919 /* If we didn't find any dynamic relocs in sections which needs the
1920 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1921 the copy reloc. */
1922 if (p == NULL)
1923 {
f5385ebf 1924 h->non_got_ref = 0;
6edf0760
NC		 1925 return TRUE;
1926 }
1927
909272ee
AM		 1928 if (h->size == 0)
1929 {
1930 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1931 h->root.root.string);
1932 return TRUE;
1933 }
1934
6edf0760
NC		 1935 /* We must allocate the symbol in our .dynbss section, which will
1936 become part of the .bss section of the executable. There will be
1937 an entry for this symbol in the .dynsym section. The dynamic
1938 object will contain position independent code, so all references
1939 from the dynamic object to this symbol will go through the global
1940 offset table. The dynamic linker will use the .dynsym entry to
1941 determine the address it must put in the global offset table, so
1942 both the dynamic object and the regular object will refer to the
1943 same memory location for the variable. */
41978308 1944
6edf0760
NC		 1945 htab = m32r_elf_hash_table (info);
1946 s = htab->sdynbss;
1947 BFD_ASSERT (s != NULL);
41978308 1948
6edf0760
NC		 1949 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1950 to copy the initial value out of the dynamic object and into the
1951 runtime process image. We need to remember the offset into the
1952 .rela.bss section we are going to use. */
1953 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1954 {
1955 asection *srel;
41978308 1956
6edf0760
NC		 1957 srel = htab->srelbss;
1958 BFD_ASSERT (srel != NULL);
eea6121a 1959 srel->size += sizeof (Elf32_External_Rela);
f5385ebf 1960 h->needs_copy = 1;
6edf0760 1961 }
41978308 1962
027297b7 1963 return _bfd_elf_adjust_dynamic_copy (h, s);
6edf0760
NC		 1964}
1965
6edf0760
NC		 1966/* Allocate space in .plt, .got and associated reloc sections for
1967 dynamic relocs. */
41978308 1968
6edf0760 1969static bfd_boolean
47b0e7ad 1970allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 1971{
1972 struct bfd_link_info *info;
1973 struct elf_m32r_link_hash_table *htab;
1974 struct elf_m32r_link_hash_entry *eh;
1975 struct elf_m32r_dyn_relocs *p;
41978308 1976
6edf0760
NC		 1977 if (h->root.type == bfd_link_hash_indirect)
1978 return TRUE;
41978308 1979
6edf0760
NC		 1980 if (h->root.type == bfd_link_hash_warning)
1981 /* When warning symbols are created, they **replace** the "real"
1982 entry in the hash table, thus we never get to see the real
1983 symbol in a hash traversal. So look at it now. */
1984 h = (struct elf_link_hash_entry *) h->root.u.i.link;
41978308 1985
6edf0760
NC		 1986 info = (struct bfd_link_info *) inf;
1987 htab = m32r_elf_hash_table (info);
41978308 1988
6edf0760 1989 eh = (struct elf_m32r_link_hash_entry *) h;
41978308 1990
6edf0760
NC		 1991 if (htab->root.dynamic_sections_created
1992 && h->plt.refcount > 0)
1993 {
1994 /* Make sure this symbol is output as a dynamic symbol.
1995 Undefined weak syms won't yet be marked as dynamic. */
1996 if (h->dynindx == -1
f5385ebf 1997 && !h->forced_local)
6edf0760 1998 {
c152c796 1999 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2000 return FALSE;
2001 }
41978308 2002
c152c796 2003 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
6edf0760
NC		 2004 {
2005 asection *s = htab->splt;
41978308 2006
6edf0760
NC		 2007 /* If this is the first .plt entry, make room for the special
2008 first entry. */
eea6121a
AM		 2009 if (s->size == 0)
2010 s->size += PLT_ENTRY_SIZE;
41978308 2011
eea6121a 2012 h->plt.offset = s->size;
41978308 2013
6edf0760
NC		 2014 /* If this symbol is not defined in a regular file, and we are
2015 not generating a shared library, then set the symbol to this
2016 location in the .plt. This is required to make function
2017 pointers compare as equal between the normal executable and
2018 the shared library. */
2019 if (! info->shared
f5385ebf 2020 && !h->def_regular)
6edf0760
NC		 2021 {
2022 h->root.u.def.section = s;
2023 h->root.u.def.value = h->plt.offset;
2024 }
41978308 2025
6edf0760 2026 /* Make room for this entry. */
eea6121a 2027 s->size += PLT_ENTRY_SIZE;
41978308 2028
6edf0760
NC		 2029 /* We also need to make an entry in the .got.plt section, which
2030 will be placed in the .got section by the linker script. */
eea6121a 2031 htab->sgotplt->size += 4;
41978308 2032
6edf0760 2033 /* We also need to make an entry in the .rel.plt section. */
eea6121a 2034 htab->srelplt->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2035 }
2036 else
2037 {
2038 h->plt.offset = (bfd_vma) -1;
f5385ebf 2039 h->needs_plt = 0;
6edf0760
NC		 2040 }
2041 }
2042 else
2043 {
2044 h->plt.offset = (bfd_vma) -1;
f5385ebf 2045 h->needs_plt = 0;
6edf0760 2046 }
41978308 2047
6edf0760
NC		 2048 if (h->got.refcount > 0)
2049 {
2050 asection *s;
2051 bfd_boolean dyn;
41978308 2052
6edf0760
NC		 2053 /* Make sure this symbol is output as a dynamic symbol.
2054 Undefined weak syms won't yet be marked as dynamic. */
2055 if (h->dynindx == -1
f5385ebf 2056 && !h->forced_local)
6edf0760 2057 {
c152c796 2058 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2059 return FALSE;
2060 }
41978308 2061
6edf0760
NC		 2062 s = htab->sgot;
2063
eea6121a
AM		 2064 h->got.offset = s->size;
2065 s->size += 4;
6edf0760 2066 dyn = htab->root.dynamic_sections_created;
c152c796 2067 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
eea6121a 2068 htab->srelgot->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2069 }
2070 else
2071 h->got.offset = (bfd_vma) -1;
41978308 2072
6edf0760
NC		 2073 if (eh->dyn_relocs == NULL)
2074 return TRUE;
41978308 2075
6edf0760
NC		 2076 /* In the shared -Bsymbolic case, discard space allocated for
2077 dynamic pc-relative relocs against symbols which turn out to be
2078 defined in regular objects. For the normal shared case, discard
2079 space for pc-relative relocs that have become local due to symbol
2080 visibility changes. */
2081
2082 if (info->shared)
2083 {
f5385ebf
AM		 2084 if (h->def_regular
2085 && (h->forced_local
6edf0760
NC		 2086 || info->symbolic))
2087 {
2088 struct elf_m32r_dyn_relocs **pp;
47b0e7ad
NC		 2089
2090 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
6edf0760
NC		 2091 {
2092 p->count -= p->pc_count;
2093 p->pc_count = 0;
2094 if (p->count == 0)
2095 *pp = p->next;
2096 else
2097 pp = &p->next;
2098 }
2099 }
22d606e9
AM		 2100
2101 /* Also discard relocs on undefined weak syms with non-default
2102 visibility. */
2103 if (eh->dyn_relocs != NULL
2104 && h->root.type == bfd_link_hash_undefweak)
2105 {
2106 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2107 eh->dyn_relocs = NULL;
2108
2109 /* Make sure undefined weak symbols are output as a dynamic
2110 symbol in PIEs. */
2111 else if (h->dynindx == -1
2112 && !h->forced_local)
2113 {
2114 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2115 return FALSE;
2116 }
2117 }
6edf0760
NC		 2118 }
2119 else
2120 {
2121 /* For the non-shared case, discard space for relocs against
2122 symbols which turn out to need copy relocs or are not
2123 dynamic. */
41978308 2124
f5385ebf
AM		 2125 if (!h->non_got_ref
2126 && ((h->def_dynamic
2127 && !h->def_regular)
6edf0760
NC		 2128 || (htab->root.dynamic_sections_created
2129 && (h->root.type == bfd_link_hash_undefweak
2130 || h->root.type == bfd_link_hash_undefined))))
2131 {
2132 /* Make sure this symbol is output as a dynamic symbol.
2133 Undefined weak syms won't yet be marked as dynamic. */
2134 if (h->dynindx == -1
f5385ebf 2135 && !h->forced_local)
6edf0760 2136 {
c152c796 2137 if (! bfd_elf_link_record_dynamic_symbol (info, h))
6edf0760
NC		 2138 return FALSE;
2139 }
41978308 2140
6edf0760
NC		 2141 /* If that succeeded, we know we'll be keeping all the
2142 relocs. */
2143 if (h->dynindx != -1)
2144 goto keep;
2145 }
41978308 2146
6edf0760 2147 eh->dyn_relocs = NULL;
41978308 2148
6edf0760
NC		 2149 keep: ;
2150 }
41978308 2151
6edf0760
NC		 2152 /* Finally, allocate space. */
2153 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2154 {
2155 asection *sreloc = elf_section_data (p->sec)->sreloc;
eea6121a 2156 sreloc->size += p->count * sizeof (Elf32_External_Rela);
6edf0760 2157 }
41978308 2158
6edf0760
NC		 2159 return TRUE;
2160}
47b0e7ad 2161
6edf0760 2162/* Find any dynamic relocs that apply to read-only sections. */
41978308 2163
6edf0760 2164static bfd_boolean
47b0e7ad 2165readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
6edf0760
NC		 2166{
2167 struct elf_m32r_link_hash_entry *eh;
2168 struct elf_m32r_dyn_relocs *p;
2169
2170 if (h->root.type == bfd_link_hash_warning)
2171 h = (struct elf_link_hash_entry *) h->root.u.i.link;
252b5132 2172
6edf0760
NC		 2173 eh = (struct elf_m32r_link_hash_entry *) h;
2174 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2175 {
2176 asection *s = p->sec->output_section;
252b5132 2177
6edf0760
NC		 2178 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2179 {
2180 struct bfd_link_info *info = (struct bfd_link_info *) inf;
252b5132 2181
6edf0760 2182 info->flags |= DF_TEXTREL;
252b5132 2183
6edf0760
NC		 2184 /* Not an error, just cut short the traversal. */
2185 return FALSE;
2186 }
252b5132 2187 }
6edf0760
NC		 2188 return TRUE;
2189}
252b5132 2190
6edf0760 2191/* Set the sizes of the dynamic sections. */
41978308 2192
6edf0760 2193static bfd_boolean
47b0e7ad
NC		 2194m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2195 struct bfd_link_info *info)
6edf0760
NC		 2196{
2197 struct elf_m32r_link_hash_table *htab;
2198 bfd *dynobj;
2199 asection *s;
2200 bfd_boolean relocs;
2201 bfd *ibfd;
2202
2203#ifdef DEBUG_PIC
47b0e7ad 2204 printf ("m32r_elf_size_dynamic_sections()\n");
6edf0760
NC		 2205#endif
2206
2207 htab = m32r_elf_hash_table (info);
2208 dynobj = htab->root.dynobj;
2209 BFD_ASSERT (dynobj != NULL);
2210
2211 if (htab->root.dynamic_sections_created)
252b5132 2212 {
6edf0760 2213 /* Set the contents of the .interp section to the interpreter. */
80447b21 2214 if (info->executable)
6edf0760
NC		 2215 {
2216 s = bfd_get_section_by_name (dynobj, ".interp");
2217 BFD_ASSERT (s != NULL);
eea6121a 2218 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
6edf0760
NC		 2219 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2220 }
252b5132
RH		 2221 }
2222
6edf0760
NC		 2223 /* Set up .got offsets for local syms, and space for local dynamic
2224 relocs. */
2225 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2226 {
2227 bfd_signed_vma *local_got;
2228 bfd_signed_vma *end_local_got;
2229 bfd_size_type locsymcount;
2230 Elf_Internal_Shdr *symtab_hdr;
2231 asection *srel;
252b5132 2232
6edf0760
NC		 2233 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2234 continue;
252b5132 2235
6edf0760
NC		 2236 for (s = ibfd->sections; s != NULL; s = s->next)
2237 {
2238 struct elf_m32r_dyn_relocs *p;
2239
2240 for (p = ((struct elf_m32r_dyn_relocs *)
2241 elf_section_data (s)->local_dynrel);
2242 p != NULL;
2243 p = p->next)
2244 {
2245 if (! bfd_is_abs_section (p->sec)
2246 && bfd_is_abs_section (p->sec->output_section))
2247 {
2248 /* Input section has been discarded, either because
2249 it is a copy of a linkonce section or due to
2250 linker script /DISCARD/, so we'll be discarding
2251 the relocs too. */
2252 }
2253 else if (p->count != 0)
2254 {
2255 srel = elf_section_data (p->sec)->sreloc;
eea6121a 2256 srel->size += p->count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2257 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2258 info->flags |= DF_TEXTREL;
2259 }
2260 }
2261 }
2262
2263 local_got = elf_local_got_refcounts (ibfd);
2264 if (!local_got)
2265 continue;
2266
2267 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2268 locsymcount = symtab_hdr->sh_info;
2269 end_local_got = local_got + locsymcount;
2270 s = htab->sgot;
2271 srel = htab->srelgot;
2272 for (; local_got < end_local_got; ++local_got)
2273 {
2274 if (*local_got > 0)
2275 {
eea6121a
AM		 2276 *local_got = s->size;
2277 s->size += 4;
6edf0760 2278 if (info->shared)
eea6121a 2279 srel->size += sizeof (Elf32_External_Rela);
6edf0760
NC		 2280 }
2281 else
2282 *local_got = (bfd_vma) -1;
2283 }
2284 }
2285
2286 /* Allocate global sym .plt and .got entries, and space for global
2287 sym dynamic relocs. */
47b0e7ad 2288 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
6edf0760
NC		 2289
2290 /* We now have determined the sizes of the various dynamic sections.
2291 Allocate memory for them. */
2292 relocs = FALSE;
2293 for (s = dynobj->sections; s != NULL; s = s->next)
252b5132 2294 {
6edf0760
NC		 2295 if ((s->flags & SEC_LINKER_CREATED) == 0)
2296 continue;
252b5132 2297
6edf0760
NC		 2298 if (s == htab->splt
2299 || s == htab->sgot
c456f082
AM		 2300 || s == htab->sgotplt
2301 || s == htab->sdynbss)
6edf0760
NC		 2302 {
2303 /* Strip this section if we don't need it; see the
2304 comment below. */
2305 }
0112cd26 2306 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
6edf0760 2307 {
eea6121a 2308 if (s->size != 0 && s != htab->srelplt)
6edf0760
NC		 2309 relocs = TRUE;
2310
2311 /* We use the reloc_count field as a counter if we need
2312 to copy relocs into the output file. */
2313 s->reloc_count = 0;
2314 }
252b5132 2315 else
47b0e7ad
NC		 2316 /* It's not one of our sections, so don't allocate space. */
2317 continue;
6edf0760 2318
eea6121a 2319 if (s->size == 0)
6edf0760
NC		 2320 {
2321 /* If we don't need this section, strip it from the
2322 output file. This is mostly to handle .rela.bss and
2323 .rela.plt. We must create both sections in
2324 create_dynamic_sections, because they must be created
2325 before the linker maps input sections to output
2326 sections. The linker does that before
2327 adjust_dynamic_symbol is called, and it is that
2328 function which decides whether anything needs to go
2329 into these sections. */
8423293d 2330 s->flags |= SEC_EXCLUDE;
6edf0760
NC		 2331 continue;
2332 }
2333
c456f082
AM		 2334 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2335 continue;
2336
6edf0760
NC		 2337 /* Allocate memory for the section contents. We use bfd_zalloc
2338 here in case unused entries are not reclaimed before the
2339 section's contents are written out. This should not happen,
2340 but this way if it does, we get a R_M32R_NONE reloc instead
2341 of garbage. */
47b0e7ad 2342 s->contents = bfd_zalloc (dynobj, s->size);
6edf0760
NC		 2343 if (s->contents == NULL)
2344 return FALSE;
2345 }
2346
2347 if (htab->root.dynamic_sections_created)
2348 {
2349 /* Add some entries to the .dynamic section. We fill in the
2350 values later, in m32r_elf_finish_dynamic_sections, but we
2351 must add the entries now so that we get the correct size for
2352 the .dynamic section. The DT_DEBUG entry is filled in by the
2353 dynamic linker and used by the debugger. */
2354#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2355 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
6edf0760 2356
80447b21 2357 if (info->executable)
252b5132 2358 {
6edf0760
NC		 2359 if (! add_dynamic_entry (DT_DEBUG, 0))
2360 return FALSE;
252b5132 2361 }
6edf0760 2362
eea6121a 2363 if (htab->splt->size != 0)
6edf0760
NC		 2364 {
2365 if (! add_dynamic_entry (DT_PLTGOT, 0)
2366 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2367 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2368 || ! add_dynamic_entry (DT_JMPREL, 0))
2369 return FALSE;
2370 }
2371
2372 if (relocs)
2373 {
2374 if (! add_dynamic_entry (DT_RELA, 0)
2375 || ! add_dynamic_entry (DT_RELASZ, 0)
2376 || ! add_dynamic_entry (DT_RELAENT,
2377 sizeof (Elf32_External_Rela)))
2378 return FALSE;
2379
2380 /* If any dynamic relocs apply to a read-only section,
2381 then we need a DT_TEXTREL entry. */
2382 if ((info->flags & DF_TEXTREL) == 0)
2383 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
47b0e7ad 2384 info);
6edf0760
NC		 2385
2386 if ((info->flags & DF_TEXTREL) != 0)
2387 {
2388 if (! add_dynamic_entry (DT_TEXTREL, 0))
2389 return FALSE;
2390 }
2391 }
252b5132 2392 }
6edf0760
NC		 2393#undef add_dynamic_entry
2394
2395 return TRUE;
252b5132 2396}
47b0e7ad 2397
252b5132
RH		 2398/* Relocate an M32R/D ELF section.
2399 There is some attempt to make this function usable for many architectures,
f0fe0e16 2400 both for RELA and REL type relocs, if only to serve as a learning tool.
252b5132
RH		 2401
2402 The RELOCATE_SECTION function is called by the new ELF backend linker
2403 to handle the relocations for a section.
2404
2405 The relocs are always passed as Rela structures; if the section
2406 actually uses Rel structures, the r_addend field will always be
2407 zero.
2408
2409 This function is responsible for adjust the section contents as
2410 necessary, and (if using Rela relocs and generating a
1049f94e 2411 relocatable output file) adjusting the reloc addend as
252b5132
RH		 2412 necessary.
2413
2414 This function does not have to worry about setting the reloc
2415 address or the reloc symbol index.
2416
2417 LOCAL_SYMS is a pointer to the swapped in local symbols.
2418
2419 LOCAL_SECTIONS is an array giving the section in the input file
2420 corresponding to the st_shndx field of each local symbol.
2421
2422 The global hash table entry for the global symbols can be found
2423 via elf_sym_hashes (input_bfd).
2424
1049f94e 2425 When generating relocatable output, this function must handle
252b5132
RH		 2426 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2427 going to be the section symbol corresponding to the output
2428 section, which means that the addend must be adjusted
2429 accordingly. */
2430
b34976b6 2431static bfd_boolean
47b0e7ad
NC		 2432m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2433 struct bfd_link_info *info,
2434 bfd *input_bfd,
2435 asection *input_section,
2436 bfd_byte *contents,
2437 Elf_Internal_Rela *relocs,
2438 Elf_Internal_Sym *local_syms,
2439 asection **local_sections)
252b5132
RH		 2440{
2441 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2442 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2443 Elf_Internal_Rela *rel, *relend;
2444 /* Assume success. */
b34976b6 2445 bfd_boolean ret = TRUE;
252b5132 2446
6edf0760
NC		 2447 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2448 bfd *dynobj;
2449 bfd_vma *local_got_offsets;
2450 asection *sgot, *splt, *sreloc;
07515404 2451 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
6edf0760
NC		 2452
2453 dynobj = htab->root.dynobj;
2454 local_got_offsets = elf_local_got_offsets (input_bfd);
41978308 2455
6edf0760
NC		 2456 sgot = htab->sgot;
2457 splt = htab->splt;
2458 sreloc = NULL;
b491616a 2459
252b5132
RH		 2460 rel = relocs;
2461 relend = relocs + input_section->reloc_count;
2462 for (; rel < relend; rel++)
2463 {
2464 int r_type;
2465 reloc_howto_type *howto;
2466 unsigned long r_symndx;
6edf0760 2467 struct elf_link_hash_entry *h;
252b5132 2468 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
6edf0760
NC		 2469 ensure it's zero (we use REL relocs, not RELA). Therefore this
2470 should be assigning zero to `addend', but for clarity we use
2471 `r_addend'. */
252b5132
RH		 2472 bfd_vma addend = rel->r_addend;
2473 bfd_vma offset = rel->r_offset;
ab96bf03 2474 bfd_vma relocation;
252b5132
RH		 2475 Elf_Internal_Sym *sym;
2476 asection *sec;
2477 const char *sym_name;
2478 bfd_reloc_status_type r;
2479 const char *errmsg = NULL;
6edf0760 2480 bfd_boolean use_rel = FALSE;
252b5132
RH		 2481
2482 h = NULL;
2483 r_type = ELF32_R_TYPE (rel->r_info);
2484 if (r_type < 0 || r_type >= (int) R_M32R_max)
2485 {
d003868e
AM		 2486 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2487 input_bfd,
252b5132
RH		 2488 (int) r_type);
2489 bfd_set_error (bfd_error_bad_value);
b34976b6 2490 ret = FALSE;
252b5132
RH		 2491 continue;
2492 }
2493
47b0e7ad 2494 if ( r_type == R_M32R_GNU_VTENTRY
6edf0760
NC		 2495 || r_type == R_M32R_GNU_VTINHERIT
2496 || r_type == R_M32R_NONE
2497 || r_type == R_M32R_RELA_GNU_VTENTRY
2498 || r_type == R_M32R_RELA_GNU_VTINHERIT)
252b5132
RH		 2499 continue;
2500
6edf0760
NC		 2501 if (r_type <= R_M32R_GNU_VTENTRY)
2502 use_rel = TRUE;
2503
252b5132
RH		 2504 howto = m32r_elf_howto_table + r_type;
2505 r_symndx = ELF32_R_SYM (rel->r_info);
2506
ab96bf03
AM		 2507 sym = NULL;
2508 sec = NULL;
2509 h = NULL;
2510
2511 if (r_symndx < symtab_hdr->sh_info)
2512 {
2513 /* Local symbol. */
2514 sym = local_syms + r_symndx;
2515 sec = local_sections[r_symndx];
2516 sym_name = "<local symbol>";
2517
2518 if (!use_rel)
2519 {
2520 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2521 addend = rel->r_addend;
2522 }
2523 else
2524 {
2525 relocation = (sec->output_section->vma
2526 + sec->output_offset
2527 + sym->st_value);
2528 }
2529 }
2530 else
2531 {
2532 /* External symbol. */
2533 relocation = 0;
2534
2535 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2536 while (h->root.type == bfd_link_hash_indirect
2537 || h->root.type == bfd_link_hash_warning)
2538 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2539 sym_name = h->root.root.string;
2540
2541 if (h->root.type == bfd_link_hash_defined
2542 || h->root.type == bfd_link_hash_defweak)
2543 {
2544 bfd_boolean dyn;
2545 sec = h->root.u.def.section;
2546
2547 dyn = htab->root.dynamic_sections_created;
2548 sec = h->root.u.def.section;
2549 if (r_type == R_M32R_GOTPC24
2550 || (r_type == R_M32R_GOTPC_HI_ULO
2551 || r_type == R_M32R_GOTPC_HI_SLO
2552 || r_type == R_M32R_GOTPC_LO)
2553 || (r_type == R_M32R_26_PLTREL
2554 && h->plt.offset != (bfd_vma) -1)
2555 || ((r_type == R_M32R_GOT24
2556 || r_type == R_M32R_GOT16_HI_ULO
2557 || r_type == R_M32R_GOT16_HI_SLO
2558 || r_type == R_M32R_GOT16_LO)
2559 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2560 info->shared, h)
2561 && (! info->shared
2562 || (! info->symbolic && h->dynindx != -1)
2563 || !h->def_regular))
2564 || (info->shared
2565 && ((! info->symbolic && h->dynindx != -1)
2566 || !h->def_regular)
2567 && (((r_type == R_M32R_16_RELA
2568 || r_type == R_M32R_32_RELA
2569 || r_type == R_M32R_24_RELA
2570 || r_type == R_M32R_HI16_ULO_RELA
2571 || r_type == R_M32R_HI16_SLO_RELA
2572 || r_type == R_M32R_LO16_RELA)
2573 && !h->forced_local)
2574 || r_type == R_M32R_REL32
2575 || r_type == R_M32R_10_PCREL_RELA
2576 || r_type == R_M32R_18_PCREL_RELA
2577 || r_type == R_M32R_26_PCREL_RELA)
2578 && ((input_section->flags & SEC_ALLOC) != 0
2579 /* DWARF will emit R_M32R_16(24,32) relocations
2580 in its sections against symbols defined
2581 externally in shared libraries. We can't do
2582 anything with them here. */
2583 || ((input_section->flags & SEC_DEBUGGING) != 0
2584 && h->def_dynamic))))
2585 {
2586 /* In these cases, we don't need the relocation
2587 value. We check specially because in some
2588 obscure cases sec->output_section will be NULL. */
2589 }
2590 else if (sec->output_section != NULL)
2591 relocation = (h->root.u.def.value
2592 + sec->output_section->vma
2593 + sec->output_offset);
2594 else if (!info->relocatable)
2595 {
2596 (*_bfd_error_handler)
2597 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2598 input_bfd,
2599 input_section,
2600 (long) rel->r_offset,
2601 howto->name,
2602 h->root.root.string);
2603 }
2604 }
2605 else if (h->root.type == bfd_link_hash_undefweak)
2606 ;
2607 else if (info->unresolved_syms_in_objects == RM_IGNORE
2608 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2609 ;
2610 else if (!info->relocatable)
2611 {
2612 if (! ((*info->callbacks->undefined_symbol)
2613 (info, h->root.root.string, input_bfd,
2614 input_section, offset,
2615 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2616 || ELF_ST_VISIBILITY (h->other)))))
2617 return FALSE;
2618 }
2619 }
2620
2621 if (sec != NULL && elf_discarded_section (sec))
2622 {
2623 /* For relocs against symbols from removed linkonce sections,
2624 or sections discarded by a linker script, we just want the
2625 section contents zeroed. Avoid any special processing. */
2626 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2627 rel->r_info = 0;
2628 rel->r_addend = 0;
2629 continue;
2630 }
2631
2632 if (info->relocatable && !use_rel)
252b5132 2633 {
1049f94e 2634 /* This is a relocatable link. We don't have to change
252b5132
RH		 2635 anything, unless the reloc is against a section symbol,
2636 in which case we have to adjust according to where the
2637 section symbol winds up in the output section. */
ab96bf03
AM		 2638 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2639 rel->r_addend += sec->output_offset;
2640 continue;
2641 }
252b5132 2642
ab96bf03
AM		 2643 if (info->relocatable && use_rel)
2644 {
2645 /* This is a relocatable link. We don't have to change
2646 anything, unless the reloc is against a section symbol,
2647 in which case we have to adjust according to where the
2648 section symbol winds up in the output section. */
2649 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
47b0e7ad 2650 continue;
252b5132 2651
ab96bf03 2652 addend += sec->output_offset;
252b5132 2653
252b5132
RH		 2654 /* If partial_inplace, we need to store any additional addend
2655 back in the section. */
2656 if (! howto->partial_inplace)
2657 continue;
2658 /* ??? Here is a nice place to call a special_function
2659 like handler. */
2660 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2661 r = _bfd_relocate_contents (howto, input_bfd,
2662 addend, contents + offset);
2663 else
2664 {
2665 Elf_Internal_Rela *lorel;
2666
2667 /* We allow an arbitrary number of HI16 relocs before the
2668 LO16 reloc. This permits gcc to emit the HI and LO relocs
2669 itself. */
2670 for (lorel = rel + 1;
2671 (lorel < relend
2672 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2673 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2674 lorel++)
2675 continue;
2676 if (lorel < relend
2677 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2678 {
2679 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2680 contents, addend);
2681 r = bfd_reloc_ok;
2682 }
2683 else
2684 r = _bfd_relocate_contents (howto, input_bfd,
2685 addend, contents + offset);
2686 }
252b5132
RH		 2687 }
2688 else
2689 {
252b5132 2690 /* Sanity check the address. */
07515404 2691 if (offset > high_address)
252b5132
RH		 2692 {
2693 r = bfd_reloc_outofrange;
2694 goto check_reloc;
2695 }
2696
2697 switch ((int) r_type)
2698 {
097f809a
NC		 2699 case R_M32R_GOTOFF:
2700 /* Relocation is relative to the start of the global offset
2701 table (for ld24 rx, #uimm24). eg access at label+addend
f12123c0 2702
097f809a
NC		 2703 ld24 rx. #label@GOTOFF + addend
2704 sub rx, r12. */
2705
2706 BFD_ASSERT (sgot != NULL);
2707
2708 relocation = -(relocation - sgot->output_section->vma);
2709 rel->r_addend = -rel->r_addend;
2710 break;
2711
2712 case R_M32R_GOTOFF_HI_ULO:
2713 case R_M32R_GOTOFF_HI_SLO:
2714 case R_M32R_GOTOFF_LO:
2715 BFD_ASSERT (sgot != NULL);
2716
2717 relocation -= sgot->output_section->vma;
2718
2719 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2720 && ((relocation + rel->r_addend) & 0x8000))
2721 rel->r_addend += 0x10000;
2722 break;
2723
6edf0760
NC		 2724 case R_M32R_GOTPC24:
2725 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2726 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2727 */
2728 relocation = sgot->output_section->vma;
2729 break;
2730
2731 case R_M32R_GOTPC_HI_ULO:
2732 case R_M32R_GOTPC_HI_SLO:
41978308 2733 case R_M32R_GOTPC_LO:
6edf0760
NC		 2734 {
2735 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2736 bl .+4
2737 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2738 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2739 or
2740 bl .+4
2741 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2742 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2743 */
2744 relocation = sgot->output_section->vma;
2745 relocation -= (input_section->output_section->vma
2746 + input_section->output_offset
2747 + rel->r_offset);
41978308 2748 if ((r_type == R_M32R_GOTPC_HI_SLO)
6edf0760
NC		 2749 && ((relocation + rel->r_addend) & 0x8000))
2750 rel->r_addend += 0x10000;
2751
2752 break;
2753 }
2754 case R_M32R_GOT16_HI_ULO:
2755 case R_M32R_GOT16_HI_SLO:
41978308 2756 case R_M32R_GOT16_LO:
6edf0760
NC		 2757 /* Fall through. */
2758 case R_M32R_GOT24:
2759 /* Relocation is to the entry for this symbol in the global
2760 offset table. */
2761 BFD_ASSERT (sgot != NULL);
41978308 2762
6edf0760
NC		 2763 if (h != NULL)
2764 {
2765 bfd_boolean dyn;
2766 bfd_vma off;
41978308 2767
6edf0760
NC		 2768 off = h->got.offset;
2769 BFD_ASSERT (off != (bfd_vma) -1);
2770
2771 dyn = htab->root.dynamic_sections_created;
c152c796 2772 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
6edf0760
NC		 2773 || (info->shared
2774 && (info->symbolic
2775 || h->dynindx == -1
f5385ebf
AM		 2776 || h->forced_local)
2777 && h->def_regular))
6edf0760
NC		 2778 {
2779 /* This is actually a static link, or it is a
2780 -Bsymbolic link and the symbol is defined
2781 locally, or the symbol was forced to be local
2782 because of a version file. We must initialize
2783 this entry in the global offset table. Since the
2784 offset must always be a multiple of 4, we use the
2785 least significant bit to record whether we have
2786 initialized it already.
41978308 2787
6edf0760
NC		 2788 When doing a dynamic link, we create a .rela.got
2789 relocation entry to initialize the value. This
2790 is done in the finish_dynamic_symbol routine. */
2791 if ((off & 1) != 0)
2792 off &= ~1;
2793 else
2794 {
2795 bfd_put_32 (output_bfd, relocation,
2796 sgot->contents + off);
2797 h->got.offset |= 1;
2798 }
2799 }
41978308 2800
6edf0760
NC		 2801 relocation = sgot->output_offset + off;
2802 }
2803 else
2804 {
2805 bfd_vma off;
2806 bfd_byte *loc;
41978308 2807
6edf0760
NC		 2808 BFD_ASSERT (local_got_offsets != NULL
2809 && local_got_offsets[r_symndx] != (bfd_vma) -1);
41978308 2810
6edf0760 2811 off = local_got_offsets[r_symndx];
41978308 2812
6edf0760
NC		 2813 /* The offset must always be a multiple of 4. We use
2814 the least significant bit to record whether we have
2815 already processed this entry. */
2816 if ((off & 1) != 0)
2817 off &= ~1;
2818 else
2819 {
2820 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
41978308 2821
6edf0760
NC		 2822 if (info->shared)
2823 {
2824 asection *srelgot;
2825 Elf_Internal_Rela outrel;
41978308 2826
6edf0760
NC		 2827 /* We need to generate a R_M32R_RELATIVE reloc
2828 for the dynamic linker. */
2829 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2830 BFD_ASSERT (srelgot != NULL);
41978308 2831
6edf0760
NC		 2832 outrel.r_offset = (sgot->output_section->vma
2833 + sgot->output_offset
2834 + off);
2835 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2836 outrel.r_addend = relocation;
2837 loc = srelgot->contents;
47b0e7ad 2838 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2839 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2840 ++srelgot->reloc_count;
2841 }
41978308 2842
6edf0760
NC		 2843 local_got_offsets[r_symndx] |= 1;
2844 }
41978308 2845
6edf0760
NC		 2846 relocation = sgot->output_offset + off;
2847 }
2848 if ((r_type == R_M32R_GOT16_HI_SLO)
2849 && ((relocation + rel->r_addend) & 0x8000))
2850 rel->r_addend += 0x10000;
2851
2852 break;
41978308 2853
6edf0760
NC		 2854 case R_M32R_26_PLTREL:
2855 /* Relocation is to the entry for this symbol in the
2856 procedure linkage table. */
41978308 2857
6edf0760
NC		 2858 /* The native assembler will generate a 26_PLTREL reloc
2859 for a local symbol if you assemble a call from one
2860 section to another when using -K pic. */
2861 if (h == NULL)
2862 break;
2863
f5385ebf 2864 if (h->forced_local)
6edf0760
NC		 2865 break;
2866
2867 if (h->plt.offset == (bfd_vma) -1)
47b0e7ad
NC		 2868 /* We didn't make a PLT entry for this symbol. This
2869 happens when statically linking PIC code, or when
2870 using -Bsymbolic. */
2871 break;
41978308 2872
6edf0760
NC		 2873 relocation = (splt->output_section->vma
2874 + splt->output_offset
2875 + h->plt.offset);
2876 break;
41978308 2877
6edf0760 2878 case R_M32R_HI16_SLO_RELA:
47b0e7ad
NC		 2879 if ((relocation + rel->r_addend) & 0x8000)
2880 rel->r_addend += 0x10000;
6edf0760 2881 /* Fall through. */
47b0e7ad 2882
6edf0760
NC		 2883 case R_M32R_16_RELA:
2884 case R_M32R_24_RELA:
2885 case R_M32R_32_RELA:
157e7bd1 2886 case R_M32R_REL32:
8ce757c4 2887 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 2888 case R_M32R_18_PCREL_RELA:
2889 case R_M32R_26_PCREL_RELA:
2890 case R_M32R_HI16_ULO_RELA:
2891 case R_M32R_LO16_RELA:
6edf0760
NC		 2892 if (info->shared
2893 && r_symndx != 0
2894 && (input_section->flags & SEC_ALLOC) != 0
8ce757c4
NC		 2895 && (( r_type != R_M32R_10_PCREL_RELA
2896 && r_type != R_M32R_18_PCREL_RELA
157e7bd1
NC		 2897 && r_type != R_M32R_26_PCREL_RELA
2898 && r_type != R_M32R_REL32)
6edf0760
NC		 2899 || (h != NULL
2900 && h->dynindx != -1
2901 && (! info->symbolic
f5385ebf 2902 || !h->def_regular))))
6edf0760
NC		 2903 {
2904 Elf_Internal_Rela outrel;
2905 bfd_boolean skip, relocate;
2906 bfd_byte *loc;
41978308 2907
6edf0760
NC		 2908 /* When generating a shared object, these relocations
2909 are copied into the output file to be resolved at run
2910 time. */
6edf0760
NC		 2911 if (sreloc == NULL)
2912 {
2913 const char *name;
41978308 2914
6edf0760
NC		 2915 name = (bfd_elf_string_from_elf_section
2916 (input_bfd,
2917 elf_elfheader (input_bfd)->e_shstrndx,
2918 elf_section_data (input_section)->rel_hdr.sh_name));
2919 if (name == NULL)
2920 return FALSE;
41978308 2921
0112cd26 2922 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
6edf0760
NC		 2923 && strcmp (bfd_get_section_name (input_bfd,
2924 input_section),
2925 name + 5) == 0);
41978308 2926
6edf0760
NC		 2927 sreloc = bfd_get_section_by_name (dynobj, name);
2928 BFD_ASSERT (sreloc != NULL);
2929 }
41978308 2930
6edf0760
NC		 2931 skip = FALSE;
2932 relocate = FALSE;
41978308 2933
6edf0760
NC		 2934 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2935 info,
2936 input_section,
2937 rel->r_offset);
2938 if (outrel.r_offset == (bfd_vma) -1)
2939 skip = TRUE;
2940 else if (outrel.r_offset == (bfd_vma) -2)
47b0e7ad 2941 skip = relocate = TRUE;
6edf0760
NC		 2942 outrel.r_offset += (input_section->output_section->vma
2943 + input_section->output_offset);
41978308 2944
6edf0760
NC		 2945 if (skip)
2946 memset (&outrel, 0, sizeof outrel);
8ce757c4
NC		 2947 else if ( r_type == R_M32R_10_PCREL_RELA
2948 || r_type == R_M32R_18_PCREL_RELA
157e7bd1
NC		 2949 || r_type == R_M32R_26_PCREL_RELA
2950 || r_type == R_M32R_REL32)
6edf0760
NC		 2951 {
2952 BFD_ASSERT (h != NULL && h->dynindx != -1);
2953 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2954 outrel.r_addend = rel->r_addend;
2955 }
2956 else
2957 {
2958 /* h->dynindx may be -1 if this symbol was marked to
2959 become local. */
2960 if (h == NULL
2961 || ((info->symbolic || h->dynindx == -1)
f5385ebf 2962 && h->def_regular))
6edf0760
NC		 2963 {
2964 relocate = TRUE;
2965 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2966 outrel.r_addend = relocation + rel->r_addend;
2967 }
2968 else
2969 {
2970 BFD_ASSERT (h->dynindx != -1);
2971 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2972 outrel.r_addend = relocation + rel->r_addend;
2973 }
2974 }
2975
2976 loc = sreloc->contents;
47b0e7ad 2977 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 2978 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2979 ++sreloc->reloc_count;
2980
2981 /* If this reloc is against an external symbol, we do
2982 not want to fiddle with the addend. Otherwise, we
2983 need to include the symbol value so that it becomes
2984 an addend for the dynamic reloc. */
2985 if (! relocate)
2986 continue;
8ce757c4 2987 break;
6edf0760 2988 }
8ce757c4
NC		 2989 else if (r_type != R_M32R_10_PCREL_RELA)
2990 break;
2991 /* Fall through. */
41978308 2992
252b5132
RH		 2993 case (int) R_M32R_10_PCREL :
2994 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2995 contents, offset,
2996 sec, relocation, addend);
6edf0760 2997 goto check_reloc;
252b5132
RH		 2998
2999 case (int) R_M32R_HI16_SLO :
3000 case (int) R_M32R_HI16_ULO :
3001 {
3002 Elf_Internal_Rela *lorel;
3003
3004 /* We allow an arbitrary number of HI16 relocs before the
3005 LO16 reloc. This permits gcc to emit the HI and LO relocs
3006 itself. */
3007 for (lorel = rel + 1;
3008 (lorel < relend
3009 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
3010 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
3011 lorel++)
3012 continue;
3013 if (lorel < relend
3014 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3015 {
3016 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3017 contents, relocation + addend);
3018 r = bfd_reloc_ok;
3019 }
3020 else
3021 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3022 contents, offset,
3023 relocation, addend);
3024 }
6edf0760
NC		 3025
3026 goto check_reloc;
252b5132 3027
af705ba8 3028 case (int) R_M32R_SDA16_RELA:
252b5132
RH		 3029 case (int) R_M32R_SDA16 :
3030 {
3031 const char *name;
3032
3033 BFD_ASSERT (sec != NULL);
3034 name = bfd_get_section_name (abfd, sec);
3035
47b0e7ad 3036 if ( strcmp (name, ".sdata") == 0
252b5132
RH		 3037 || strcmp (name, ".sbss") == 0
3038 || strcmp (name, ".scommon") == 0)
3039 {
3040 bfd_vma sda_base;
3041 bfd *out_bfd = sec->output_section->owner;
3042
3043 r = m32r_elf_final_sda_base (out_bfd, info,
3044 &errmsg,
3045 &sda_base);
3046 if (r != bfd_reloc_ok)
3047 {
b34976b6 3048 ret = FALSE;
252b5132
RH		 3049 goto check_reloc;
3050 }
3051
3052 /* At this point `relocation' contains the object's
3053 address. */
3054 relocation -= sda_base;
3055 /* Now it contains the offset from _SDA_BASE_. */
3056 }
3057 else
3058 {
8f615d07 3059 (*_bfd_error_handler)
d003868e
AM		 3060 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3061 input_bfd,
3062 sec,
8f615d07 3063 sym_name,
d003868e 3064 m32r_elf_howto_table[(int) r_type].name);
252b5132 3065 /*bfd_set_error (bfd_error_bad_value); ??? why? */
b34976b6 3066 ret = FALSE;
252b5132
RH		 3067 continue;
3068 }
3069 }
47b0e7ad 3070 /* Fall through. */
6edf0760
NC		 3071
3072 default : /* OLD_M32R_RELOC */
252b5132 3073
252b5132
RH		 3074 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3075 contents, offset,
3076 relocation, addend);
6edf0760 3077 goto check_reloc;
252b5132 3078 }
6edf0760
NC		 3079
3080 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3081 contents, rel->r_offset,
3082 relocation, rel->r_addend);
3083
252b5132
RH		 3084 }
3085
3086 check_reloc:
3087
3088 if (r != bfd_reloc_ok)
3089 {
3090 /* FIXME: This should be generic enough to go in a utility. */
3091 const char *name;
3092
3093 if (h != NULL)
3094 name = h->root.root.string;
3095 else
3096 {
3097 name = (bfd_elf_string_from_elf_section
3098 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3099 if (name == NULL || *name == '\0')
3100 name = bfd_section_name (input_bfd, sec);
3101 }
3102
3103 if (errmsg != NULL)
3104 goto common_error;
3105
3106 switch (r)
3107 {
3108 case bfd_reloc_overflow:
3109 if (! ((*info->callbacks->reloc_overflow)
dfeffb9f
L		 3110 (info, (h ? &h->root : NULL), name, howto->name,
3111 (bfd_vma) 0, input_bfd, input_section, offset)))
b34976b6 3112 return FALSE;
252b5132
RH		 3113 break;
3114
3115 case bfd_reloc_undefined:
3116 if (! ((*info->callbacks->undefined_symbol)
3117 (info, name, input_bfd, input_section,
b34976b6
AM		 3118 offset, TRUE)))
3119 return FALSE;
252b5132
RH		 3120 break;
3121
3122 case bfd_reloc_outofrange:
3123 errmsg = _("internal error: out of range error");
3124 goto common_error;
3125
3126 case bfd_reloc_notsupported:
3127 errmsg = _("internal error: unsupported relocation error");
3128 goto common_error;
3129
3130 case bfd_reloc_dangerous:
3131 errmsg = _("internal error: dangerous error");
3132 goto common_error;
3133
3134 default:
3135 errmsg = _("internal error: unknown error");
3136 /* fall through */
3137
3138 common_error:
3139 if (!((*info->callbacks->warning)
3140 (info, errmsg, name, input_bfd, input_section,
3141 offset)))
b34976b6 3142 return FALSE;
252b5132
RH		 3143 break;
3144 }
3145 }
3146 }
3147
3148 return ret;
3149}
6edf0760
NC		 3150
3151/* Finish up dynamic symbol handling. We set the contents of various
3152 dynamic sections here. */
47b0e7ad 3153
6edf0760 3154static bfd_boolean
47b0e7ad
NC		 3155m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3156 struct bfd_link_info *info,
3157 struct elf_link_hash_entry *h,
3158 Elf_Internal_Sym *sym)
6edf0760
NC		 3159{
3160 struct elf_m32r_link_hash_table *htab;
3161 bfd *dynobj;
3162 bfd_byte *loc;
41978308 3163
6edf0760 3164#ifdef DEBUG_PIC
47b0e7ad 3165 printf ("m32r_elf_finish_dynamic_symbol()\n");
6edf0760 3166#endif
41978308 3167
6edf0760
NC		 3168 htab = m32r_elf_hash_table (info);
3169 dynobj = htab->root.dynobj;
3170
3171 if (h->plt.offset != (bfd_vma) -1)
3172 {
3173 asection *splt;
3174 asection *sgot;
3175 asection *srela;
3176
3177 bfd_vma plt_index;
3178 bfd_vma got_offset;
3179 Elf_Internal_Rela rela;
41978308 3180
6edf0760
NC		 3181 /* This symbol has an entry in the procedure linkage table. Set
3182 it up. */
41978308 3183
6edf0760 3184 BFD_ASSERT (h->dynindx != -1);
41978308 3185
6edf0760
NC		 3186 splt = htab->splt;
3187 sgot = htab->sgotplt;
3188 srela = htab->srelplt;
3189 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3190
3191 /* Get the index in the procedure linkage table which
3192 corresponds to this symbol. This is the index of this symbol
3193 in all the symbols for which we are making plt entries. The
3194 first entry in the procedure linkage table is reserved. */
3195 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3196
3197 /* Get the offset into the .got table of the entry that
3198 corresponds to this function. Each .got entry is 4 bytes.
3199 The first three are reserved. */
3200 got_offset = (plt_index + 3) * 4;
3201
3202 /* Fill in the entry in the procedure linkage table. */
3203 if (! info->shared)
3204 {
3205 bfd_put_32 (output_bfd,
3206 (PLT_ENTRY_WORD0b
3207 + (((sgot->output_section->vma
3208 + sgot->output_offset
3209 + got_offset) >> 16) & 0xffff)),
3210 splt->contents + h->plt.offset);
3211 bfd_put_32 (output_bfd,
3212 (PLT_ENTRY_WORD1b
3213 + ((sgot->output_section->vma
3214 + sgot->output_offset
3215 + got_offset) & 0xffff)),
3216 splt->contents + h->plt.offset + 4);
3217 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3218 splt->contents + h->plt.offset + 8);
3219 bfd_put_32 (output_bfd,
3220 (PLT_ENTRY_WORD3
3221 + plt_index * sizeof (Elf32_External_Rela)),
3222 splt->contents + h->plt.offset + 12);
3223 bfd_put_32 (output_bfd,
3224 (PLT_ENTRY_WORD4
3225 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3226 splt->contents + h->plt.offset + 16);
3227 }
3228 else
3229 {
3230 bfd_put_32 (output_bfd,
3231 PLT_ENTRY_WORD0 + got_offset,
3232 splt->contents + h->plt.offset);
3233 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3234 splt->contents + h->plt.offset + 4);
3235 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3236 splt->contents + h->plt.offset + 8);
3237 bfd_put_32 (output_bfd,
3238 (PLT_ENTRY_WORD3
3239 + plt_index * sizeof (Elf32_External_Rela)),
3240 splt->contents + h->plt.offset + 12);
3241 bfd_put_32 (output_bfd,
3242 (PLT_ENTRY_WORD4
3243 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3244 splt->contents + h->plt.offset + 16);
3245 }
41978308 3246
6edf0760
NC		 3247 /* Fill in the entry in the global offset table. */
3248 bfd_put_32 (output_bfd,
3249 (splt->output_section->vma
3250 + splt->output_offset
3251 + h->plt.offset
3252 + 12), /* same offset */
3253 sgot->contents + got_offset);
3254
3255 /* Fill in the entry in the .rela.plt section. */
3256 rela.r_offset = (sgot->output_section->vma
3257 + sgot->output_offset
3258 + got_offset);
3259 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3260 rela.r_addend = 0;
3261 loc = srela->contents;
47b0e7ad 3262 loc += plt_index * sizeof (Elf32_External_Rela);
6edf0760 3263 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
41978308 3264
f5385ebf 3265 if (!h->def_regular)
6edf0760
NC		 3266 {
3267 /* Mark the symbol as undefined, rather than as defined in
3268 the .plt section. Leave the value alone. */
3269 sym->st_shndx = SHN_UNDEF;
3270 }
3271 }
3272
3273 if (h->got.offset != (bfd_vma) -1)
3274 {
3275 asection *sgot;
3276 asection *srela;
3277 Elf_Internal_Rela rela;
41978308 3278
6edf0760
NC		 3279 /* This symbol has an entry in the global offset table. Set it
3280 up. */
41978308 3281
6edf0760
NC		 3282 sgot = htab->sgot;
3283 srela = htab->srelgot;
3284 BFD_ASSERT (sgot != NULL && srela != NULL);
41978308 3285
6edf0760
NC		 3286 rela.r_offset = (sgot->output_section->vma
3287 + sgot->output_offset
3288 + (h->got.offset &~ 1));
41978308 3289
6edf0760
NC		 3290 /* If this is a -Bsymbolic link, and the symbol is defined
3291 locally, we just want to emit a RELATIVE reloc. Likewise if
3292 the symbol was forced to be local because of a version file.
3293 The entry in the global offset table will already have been
3294 initialized in the relocate_section function. */
3295 if (info->shared
3296 && (info->symbolic
3297 || h->dynindx == -1
f5385ebf
AM		 3298 || h->forced_local)
3299 && h->def_regular)
6edf0760
NC		 3300 {
3301 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3302 rela.r_addend = (h->root.u.def.value
3303 + h->root.u.def.section->output_section->vma
3304 + h->root.u.def.section->output_offset);
3305 }
3306 else
3307 {
47b0e7ad 3308 BFD_ASSERT ((h->got.offset & 1) == 0);
6edf0760
NC		 3309 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3310 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3311 rela.r_addend = 0;
3312 }
41978308 3313
6edf0760 3314 loc = srela->contents;
47b0e7ad 3315 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3316 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3317 ++srela->reloc_count;
3318 }
41978308 3319
f5385ebf 3320 if (h->needs_copy)
6edf0760
NC		 3321 {
3322 asection *s;
3323 Elf_Internal_Rela rela;
41978308 3324
6edf0760 3325 /* This symbols needs a copy reloc. Set it up. */
41978308 3326
6edf0760
NC		 3327 BFD_ASSERT (h->dynindx != -1
3328 && (h->root.type == bfd_link_hash_defined
3329 || h->root.type == bfd_link_hash_defweak));
41978308 3330
6edf0760
NC		 3331 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3332 ".rela.bss");
3333 BFD_ASSERT (s != NULL);
41978308 3334
6edf0760
NC		 3335 rela.r_offset = (h->root.u.def.value
3336 + h->root.u.def.section->output_section->vma
3337 + h->root.u.def.section->output_offset);
3338 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3339 rela.r_addend = 0;
3340 loc = s->contents;
47b0e7ad 3341 loc += s->reloc_count * sizeof (Elf32_External_Rela);
6edf0760
NC		 3342 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3343 ++s->reloc_count;
3344 }
41978308 3345
6edf0760
NC		 3346 /* Mark some specially defined symbols as absolute. */
3347 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
22edb2f1 3348 || h == htab->root.hgot)
6edf0760 3349 sym->st_shndx = SHN_ABS;
41978308 3350
6edf0760
NC		 3351 return TRUE;
3352}
3353
3354
3355/* Finish up the dynamic sections. */
41978308 3356
6edf0760 3357static bfd_boolean
47b0e7ad
NC		 3358m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3359 struct bfd_link_info *info)
6edf0760
NC		 3360{
3361 struct elf_m32r_link_hash_table *htab;
3362 bfd *dynobj;
3363 asection *sdyn;
3364 asection *sgot;
3365
3366#ifdef DEBUG_PIC
47b0e7ad 3367 printf ("m32r_elf_finish_dynamic_sections()\n");
6edf0760 3368#endif
41978308 3369
6edf0760
NC		 3370 htab = m32r_elf_hash_table (info);
3371 dynobj = htab->root.dynobj;
3372
3373 sgot = htab->sgotplt;
3374 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
41978308 3375
6edf0760
NC		 3376 if (htab->root.dynamic_sections_created)
3377 {
3378 asection *splt;
3379 Elf32_External_Dyn *dyncon, *dynconend;
41978308 3380
6edf0760 3381 BFD_ASSERT (sgot != NULL && sdyn != NULL);
41978308 3382
6edf0760 3383 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 3384 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
6edf0760
NC		 3385
3386 for (; dyncon < dynconend; dyncon++)
3387 {
3388 Elf_Internal_Dyn dyn;
3389 const char *name;
3390 asection *s;
41978308 3391
6edf0760 3392 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
41978308 3393
6edf0760
NC		 3394 switch (dyn.d_tag)
3395 {
3396 default:
3397 break;
3398
3399 case DT_PLTGOT:
3400 name = ".got";
41978308 3401 s = htab->sgot->output_section;
6edf0760
NC		 3402 goto get_vma;
3403 case DT_JMPREL:
3404 name = ".rela.plt";
3405 s = htab->srelplt->output_section;
3406 get_vma:
3407 BFD_ASSERT (s != NULL);
3408 dyn.d_un.d_ptr = s->vma;
3409 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3410 break;
3411
3412 case DT_PLTRELSZ:
3413 s = htab->srelplt->output_section;
3414 BFD_ASSERT (s != NULL);
eea6121a 3415 dyn.d_un.d_val = s->size;
6edf0760
NC		 3416 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3417 break;
3418
3419 case DT_RELASZ:
3420 /* My reading of the SVR4 ABI indicates that the
3421 procedure linkage table relocs (DT_JMPREL) should be
3422 included in the overall relocs (DT_RELA). This is
3423 what Solaris does. However, UnixWare can not handle
3424 that case. Therefore, we override the DT_RELASZ entry
3425 here to make it not include the JMPREL relocs. Since
3426 the linker script arranges for .rela.plt to follow all
3427 other relocation sections, we don't have to worry
3428 about changing the DT_RELA entry. */
3429 if (htab->srelplt != NULL)
3430 {
3431 s = htab->srelplt->output_section;
eea6121a 3432 dyn.d_un.d_val -= s->size;
6edf0760
NC		 3433 }
3434 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3435 break;
3436 }
3437 }
41978308 3438
6edf0760
NC		 3439 /* Fill in the first entry in the procedure linkage table. */
3440 splt = htab->splt;
eea6121a 3441 if (splt && splt->size > 0)
6edf0760
NC		 3442 {
3443 if (info->shared)
3444 {
3445 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3446 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3447 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3448 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3449 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3450 }
3451 else
3452 {
3453 unsigned long addr;
3454 /* addr = .got + 4 */
3455 addr = sgot->output_section->vma + sgot->output_offset + 4;
3456 bfd_put_32 (output_bfd,
3457 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3458 splt->contents);
41978308 3459 bfd_put_32 (output_bfd,
6edf0760
NC		 3460 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3461 splt->contents + 4);
3462 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3463 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3464 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3465 }
3466
3467 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3468 PLT_ENTRY_SIZE;
3469 }
3470 }
3471
3472 /* Fill in the first three entries in the global offset table. */
eea6121a 3473 if (sgot && sgot->size > 0)
6edf0760
NC		 3474 {
3475 if (sdyn == NULL)
3476 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3477 else
3478 bfd_put_32 (output_bfd,
3479 sdyn->output_section->vma + sdyn->output_offset,
3480 sgot->contents);
3481 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3482 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3483
3484 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3485 }
41978308 3486
6edf0760
NC		 3487 return TRUE;
3488}
3489
252b5132
RH		 3490\f
3491/* Set the right machine number. */
47b0e7ad 3492
b34976b6 3493static bfd_boolean
47b0e7ad 3494m32r_elf_object_p (bfd *abfd)
252b5132
RH		 3495{
3496 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3497 {
3498 default:
3499 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
e916b64e 3500 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
88845958 3501 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
252b5132 3502 }
b34976b6 3503 return TRUE;
252b5132
RH		 3504}
3505
3506/* Store the machine number in the flags field. */
47b0e7ad 3507
252b5132 3508static void
47b0e7ad
NC		 3509m32r_elf_final_write_processing (bfd *abfd,
3510 bfd_boolean linker ATTRIBUTE_UNUSED)
252b5132
RH		 3511{
3512 unsigned long val;
3513
3514 switch (bfd_get_mach (abfd))
3515 {
3516 default:
3517 case bfd_mach_m32r: val = E_M32R_ARCH; break;
e916b64e 3518 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
88845958 3519 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
252b5132
RH		 3520 }
3521
3522 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3523 elf_elfheader (abfd)->e_flags |= val;
3524}
3525
c3668558 3526/* Function to keep M32R specific file flags. */
47b0e7ad 3527
b34976b6 3528static bfd_boolean
47b0e7ad 3529m32r_elf_set_private_flags (bfd *abfd, flagword flags)
252b5132
RH		 3530{
3531 BFD_ASSERT (!elf_flags_init (abfd)
3532 || elf_elfheader (abfd)->e_flags == flags);
3533
3534 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM		 3535 elf_flags_init (abfd) = TRUE;
3536 return TRUE;
252b5132
RH		 3537}
3538
252b5132
RH		 3539/* Merge backend specific data from an object file to the output
3540 object file when linking. */
47b0e7ad 3541
b34976b6 3542static bfd_boolean
47b0e7ad 3543m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
252b5132
RH		 3544{
3545 flagword out_flags;
3546 flagword in_flags;
3547
3548 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3549 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 3550 return TRUE;
252b5132
RH		 3551
3552 in_flags = elf_elfheader (ibfd)->e_flags;
3553 out_flags = elf_elfheader (obfd)->e_flags;
3554
3555 if (! elf_flags_init (obfd))
3556 {
3557 /* If the input is the default architecture then do not
3558 bother setting the flags for the output architecture,
3559 instead allow future merges to do this. If no future
3560 merges ever set these flags then they will retain their
3561 unitialised values, which surprise surprise, correspond
3562 to the default values. */
3563 if (bfd_get_arch_info (ibfd)->the_default)
b34976b6 3564 return TRUE;
c3668558 3565
b34976b6 3566 elf_flags_init (obfd) = TRUE;
252b5132
RH		 3567 elf_elfheader (obfd)->e_flags = in_flags;
3568
3569 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3570 && bfd_get_arch_info (obfd)->the_default)
47b0e7ad
NC		 3571 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3572 bfd_get_mach (ibfd));
252b5132 3573
b34976b6 3574 return TRUE;
252b5132
RH		 3575 }
3576
3577 /* Check flag compatibility. */
3578 if (in_flags == out_flags)
b34976b6 3579 return TRUE;
252b5132
RH		 3580
3581 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3582 {
88845958
NC		 3583 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3584 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3585 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
252b5132 3586 {
8f615d07 3587 (*_bfd_error_handler)
d003868e 3588 (_("%B: Instruction set mismatch with previous modules"), ibfd);
252b5132
RH		 3589
3590 bfd_set_error (bfd_error_bad_value);
b34976b6 3591 return FALSE;
252b5132
RH		 3592 }
3593 }
3594
b34976b6 3595 return TRUE;
252b5132
RH		 3596}
3597
47b0e7ad
NC		 3598/* Display the flags field. */
3599
b34976b6 3600static bfd_boolean
47b0e7ad 3601m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
252b5132
RH		 3602{
3603 FILE * file = (FILE *) ptr;
c3668558 3604
f12123c0 3605 BFD_ASSERT (abfd != NULL && ptr != NULL);
c3668558 3606
252b5132 3607 _bfd_elf_print_private_bfd_data (abfd, ptr);
c3668558 3608
252b5132 3609 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
c3668558 3610
252b5132
RH		 3611 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3612 {
3613 default:
3614 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
e916b64e 3615 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
88845958 3616 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
252b5132 3617 }
c3668558 3618
252b5132 3619 fputc ('\n', file);
c3668558 3620
b34976b6 3621 return TRUE;
252b5132
RH		 3622}
3623
47b0e7ad
NC		 3624static asection *
3625m32r_elf_gc_mark_hook (asection *sec,
07adf181 3626 struct bfd_link_info *info,
47b0e7ad
NC		 3627 Elf_Internal_Rela *rel,
3628 struct elf_link_hash_entry *h,
3629 Elf_Internal_Sym *sym)
252b5132
RH		 3630{
3631 if (h != NULL)
07adf181 3632 switch (ELF32_R_TYPE (rel->r_info))
252b5132
RH		 3633 {
3634 case R_M32R_GNU_VTINHERIT:
3635 case R_M32R_GNU_VTENTRY:
6edf0760
NC		 3636 case R_M32R_RELA_GNU_VTINHERIT:
3637 case R_M32R_RELA_GNU_VTENTRY:
07adf181
AM		 3638 return NULL;
3639 }
1e2f5b6e 3640
07adf181 3641 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
252b5132
RH		 3642}
3643
b34976b6 3644static bfd_boolean
47b0e7ad
NC		 3645m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3646 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3647 asection *sec ATTRIBUTE_UNUSED,
3648 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
252b5132 3649{
6edf0760
NC		 3650 /* Update the got entry reference counts for the section being removed. */
3651 Elf_Internal_Shdr *symtab_hdr;
3652 struct elf_link_hash_entry **sym_hashes;
3653 bfd_signed_vma *local_got_refcounts;
3654 const Elf_Internal_Rela *rel, *relend;
6edf0760
NC		 3655
3656 elf_section_data (sec)->local_dynrel = NULL;
3657
3658 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3659 sym_hashes = elf_sym_hashes (abfd);
3660 local_got_refcounts = elf_local_got_refcounts (abfd);
3661
3662 relend = relocs + sec->reloc_count;
3663 for (rel = relocs; rel < relend; rel++)
3eb128b2
AM		 3664 {
3665 unsigned long r_symndx;
3666 struct elf_link_hash_entry *h = NULL;
6edf0760 3667
3eb128b2
AM		 3668 r_symndx = ELF32_R_SYM (rel->r_info);
3669 if (r_symndx >= symtab_hdr->sh_info)
3670 {
3671 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3672 while (h->root.type == bfd_link_hash_indirect
3673 || h->root.type == bfd_link_hash_warning)
3674 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3675 }
6edf0760 3676
3eb128b2
AM		 3677 switch (ELF32_R_TYPE (rel->r_info))
3678 {
3679 case R_M32R_GOT16_HI_ULO:
3680 case R_M32R_GOT16_HI_SLO:
3681 case R_M32R_GOT16_LO:
3682 case R_M32R_GOTOFF:
3683 case R_M32R_GOTOFF_HI_ULO:
3684 case R_M32R_GOTOFF_HI_SLO:
3685 case R_M32R_GOTOFF_LO:
3686 case R_M32R_GOT24:
3687 case R_M32R_GOTPC_HI_ULO:
3688 case R_M32R_GOTPC_HI_SLO:
3689 case R_M32R_GOTPC_LO:
3690 case R_M32R_GOTPC24:
3691 if (h != NULL)
3692 {
3693 if (h->got.refcount > 0)
3694 h->got.refcount--;
3695 }
3696 else
3697 {
3698 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3699 local_got_refcounts[r_symndx]--;
3700 }
3701 break;
3702
3703 case R_M32R_16_RELA:
3704 case R_M32R_24_RELA:
3705 case R_M32R_32_RELA:
157e7bd1 3706 case R_M32R_REL32:
3eb128b2
AM		 3707 case R_M32R_HI16_ULO_RELA:
3708 case R_M32R_HI16_SLO_RELA:
3709 case R_M32R_LO16_RELA:
3710 case R_M32R_SDA16_RELA:
8ce757c4 3711 case R_M32R_10_PCREL_RELA:
3eb128b2
AM		 3712 case R_M32R_18_PCREL_RELA:
3713 case R_M32R_26_PCREL_RELA:
3714 if (h != NULL)
3715 {
3716 struct elf_m32r_link_hash_entry *eh;
3717 struct elf_m32r_dyn_relocs **pp;
3718 struct elf_m32r_dyn_relocs *p;
6edf0760 3719
3eb128b2
AM		 3720 if (!info->shared && h->plt.refcount > 0)
3721 h->plt.refcount -= 1;
6edf0760 3722
3eb128b2 3723 eh = (struct elf_m32r_link_hash_entry *) h;
6edf0760 3724
3eb128b2
AM		 3725 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3726 if (p->sec == sec)
3727 {
8ce757c4
NC		 3728 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3729 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3730 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
157e7bd1 3731 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3eb128b2
AM		 3732 p->pc_count -= 1;
3733 p->count -= 1;
3734 if (p->count == 0)
3735 *pp = p->next;
3736 break;
3737 }
3738 }
3739 break;
6edf0760 3740
3eb128b2
AM		 3741 case R_M32R_26_PLTREL:
3742 if (h != NULL)
3743 {
3744 if (h->plt.refcount > 0)
3745 h->plt.refcount--;
3746 }
3747 break;
6edf0760 3748
3eb128b2
AM		 3749 default:
3750 break;
3751 }
3752 }
6edf0760 3753
b34976b6 3754 return TRUE;
252b5132
RH		 3755}
3756
252b5132
RH		 3757/* Look through the relocs for a section during the first phase.
3758 Since we don't do .gots or .plts, we just need to consider the
3759 virtual table relocs for gc. */
c3668558 3760
b34976b6 3761static bfd_boolean
47b0e7ad
NC		 3762m32r_elf_check_relocs (bfd *abfd,
3763 struct bfd_link_info *info,
3764 asection *sec,
3765 const Elf_Internal_Rela *relocs)
252b5132
RH		 3766{
3767 Elf_Internal_Shdr *symtab_hdr;
3768 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
3769 const Elf_Internal_Rela *rel;
3770 const Elf_Internal_Rela *rel_end;
6edf0760
NC		 3771 struct elf_m32r_link_hash_table *htab;
3772 bfd *dynobj;
3773 bfd_vma *local_got_offsets;
3774 asection *sgot, *srelgot, *sreloc;
c3668558 3775
1049f94e 3776 if (info->relocatable)
b34976b6 3777 return TRUE;
c3668558 3778
6edf0760
NC		 3779 sgot = srelgot = sreloc = NULL;
3780
252b5132
RH		 3781 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3782 sym_hashes = elf_sym_hashes (abfd);
c3668558 3783 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
252b5132
RH		 3784 if (!elf_bad_symtab (abfd))
3785 sym_hashes_end -= symtab_hdr->sh_info;
c3668558 3786
6edf0760
NC		 3787 htab = m32r_elf_hash_table (info);
3788 dynobj = htab->root.dynobj;
3789 local_got_offsets = elf_local_got_offsets (abfd);
3790
252b5132
RH		 3791 rel_end = relocs + sec->reloc_count;
3792 for (rel = relocs; rel < rel_end; rel++)
3793 {
6edf0760 3794 int r_type;
252b5132
RH		 3795 struct elf_link_hash_entry *h;
3796 unsigned long r_symndx;
c3668558 3797
252b5132 3798 r_symndx = ELF32_R_SYM (rel->r_info);
6edf0760 3799 r_type = ELF32_R_TYPE (rel->r_info);
252b5132
RH		 3800 if (r_symndx < symtab_hdr->sh_info)
3801 h = NULL;
3802 else
973a3492
L		 3803 {
3804 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3805 while (h->root.type == bfd_link_hash_indirect
3806 || h->root.type == bfd_link_hash_warning)
3807 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3808 }
c3668558 3809
6edf0760
NC		 3810 /* Some relocs require a global offset table. */
3811 if (htab->sgot == NULL)
3812 {
3813 switch (r_type)
3814 {
3815 case R_M32R_GOT16_HI_ULO:
3816 case R_M32R_GOT16_HI_SLO:
097f809a
NC		 3817 case R_M32R_GOTOFF:
3818 case R_M32R_GOTOFF_HI_ULO:
3819 case R_M32R_GOTOFF_HI_SLO:
3820 case R_M32R_GOTOFF_LO:
6edf0760
NC		 3821 case R_M32R_GOT16_LO:
3822 case R_M32R_GOTPC24:
3823 case R_M32R_GOTPC_HI_ULO:
3824 case R_M32R_GOTPC_HI_SLO:
3825 case R_M32R_GOTPC_LO:
3826 case R_M32R_GOT24:
3827 if (dynobj == NULL)
3828 htab->root.dynobj = dynobj = abfd;
3829 if (! create_got_section (dynobj, info))
3830 return FALSE;
3831 break;
3832
3833 default:
3834 break;
3835 }
3836 }
3837
3838 switch (r_type)
252b5132 3839 {
6edf0760
NC		 3840 case R_M32R_GOT16_HI_ULO:
3841 case R_M32R_GOT16_HI_SLO:
41978308 3842 case R_M32R_GOT16_LO:
6edf0760
NC		 3843 case R_M32R_GOT24:
3844
3845 if (h != NULL)
3846 h->got.refcount += 1;
3847 else
3848 {
3849 bfd_signed_vma *local_got_refcounts;
3850
3851 /* This is a global offset table entry for a local
3852 symbol. */
3853 local_got_refcounts = elf_local_got_refcounts (abfd);
3854 if (local_got_refcounts == NULL)
3855 {
3856 bfd_size_type size;
3857
3858 size = symtab_hdr->sh_info;
3859 size *= sizeof (bfd_signed_vma);
47b0e7ad 3860 local_got_refcounts = bfd_zalloc (abfd, size);
6edf0760
NC		 3861 if (local_got_refcounts == NULL)
3862 return FALSE;
3863 elf_local_got_refcounts (abfd) = local_got_refcounts;
3864 }
3865 local_got_refcounts[r_symndx] += 1;
3866 }
3867 break;
3868
3869 case R_M32R_26_PLTREL:
3870 /* This symbol requires a procedure linkage table entry. We
3871 actually build the entry in adjust_dynamic_symbol,
3872 because this might be a case of linking PIC code without
3873 linking in any dynamic objects, in which case we don't
3874 need to generate a procedure linkage table after all. */
41978308 3875
6edf0760
NC		 3876 /* If this is a local symbol, we resolve it directly without
3877 creating a procedure linkage table entry. */
3878 if (h == NULL)
3879 continue;
3880
f5385ebf 3881 if (h->forced_local)
6edf0760
NC		 3882 break;
3883
f5385ebf 3884 h->needs_plt = 1;
6edf0760
NC		 3885 h->plt.refcount += 1;
3886 break;
3887
3888 case R_M32R_16_RELA:
3889 case R_M32R_24_RELA:
3890 case R_M32R_32_RELA:
157e7bd1 3891 case R_M32R_REL32:
6edf0760
NC		 3892 case R_M32R_HI16_ULO_RELA:
3893 case R_M32R_HI16_SLO_RELA:
3894 case R_M32R_LO16_RELA:
3895 case R_M32R_SDA16_RELA:
8ce757c4 3896 case R_M32R_10_PCREL_RELA:
6edf0760
NC		 3897 case R_M32R_18_PCREL_RELA:
3898 case R_M32R_26_PCREL_RELA:
3899
3900 if (h != NULL && !info->shared)
3901 {
f5385ebf 3902 h->non_got_ref = 1;
6edf0760
NC		 3903 h->plt.refcount += 1;
3904 }
3905
3906 /* If we are creating a shared library, and this is a reloc
3907 against a global symbol, or a non PC relative reloc
3908 against a local symbol, then we need to copy the reloc
3909 into the shared library. However, if we are linking with
3910 -Bsymbolic, we do not need to copy a reloc against a
3911 global symbol which is defined in an object we are
3912 including in the link (i.e., DEF_REGULAR is set). At
3913 this point we have not seen all the input files, so it is
3914 possible that DEF_REGULAR is not set now but will be set
3915 later (it is never cleared). We account for that
3916 possibility below by storing information in the
3917 dyn_relocs field of the hash table entry. A similar
3918 situation occurs when creating shared libraries and symbol
3919 visibility changes render the symbol local.
3920
3921 If on the other hand, we are creating an executable, we
3922 may need to keep relocations for symbols satisfied by a
3923 dynamic library if we manage to avoid copy relocs for the
3924 symbol. */
3925 if ((info->shared
3926 && (sec->flags & SEC_ALLOC) != 0
8ce757c4 3927 && (( r_type != R_M32R_26_PCREL_RELA
157e7bd1 3928 && r_type != R_M32R_18_PCREL_RELA
8ce757c4 3929 && r_type != R_M32R_10_PCREL_RELA
157e7bd1 3930 && r_type != R_M32R_REL32)
6edf0760
NC		 3931 || (h != NULL
3932 && (! info->symbolic
3933 || h->root.type == bfd_link_hash_defweak
f5385ebf 3934 || !h->def_regular))))
6edf0760
NC		 3935 || (!info->shared
3936 && (sec->flags & SEC_ALLOC) != 0
3937 && h != NULL
3938 && (h->root.type == bfd_link_hash_defweak
f5385ebf 3939 || !h->def_regular)))
6edf0760
NC		 3940 {
3941 struct elf_m32r_dyn_relocs *p;
3942 struct elf_m32r_dyn_relocs **head;
3943
3944 if (dynobj == NULL)
3945 htab->root.dynobj = dynobj = abfd;
3946
3947 /* When creating a shared object, we must copy these
3948 relocs into the output file. We create a reloc
3949 section in dynobj and make room for the reloc. */
3950 if (sreloc == NULL)
3951 {
3952 const char *name;
41978308 3953
6edf0760
NC		 3954 name = (bfd_elf_string_from_elf_section
3955 (abfd,
3956 elf_elfheader (abfd)->e_shstrndx,
3957 elf_section_data (sec)->rel_hdr.sh_name));
3958 if (name == NULL)
3959 return FALSE;
41978308 3960
0112cd26 3961 BFD_ASSERT (CONST_STRNEQ (name, ".rela")
6edf0760
NC		 3962 && strcmp (bfd_get_section_name (abfd, sec),
3963 name + 5) == 0);
41978308 3964
6edf0760
NC		 3965 sreloc = bfd_get_section_by_name (dynobj, name);
3966 if (sreloc == NULL)
3967 {
3968 flagword flags;
41978308 3969
6edf0760
NC		 3970 flags = (SEC_HAS_CONTENTS | SEC_READONLY
3971 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
3972 if ((sec->flags & SEC_ALLOC) != 0)
3973 flags |= SEC_ALLOC | SEC_LOAD;
3496cb2a
L		 3974 sreloc = bfd_make_section_with_flags (dynobj,
3975 name,
3976 flags);
6edf0760 3977 if (sreloc == NULL
6edf0760
NC		 3978 || ! bfd_set_section_alignment (dynobj, sreloc, 2))
3979 return FALSE;
3980 }
3981 elf_section_data (sec)->sreloc = sreloc;
3982 }
41978308 3983
6edf0760
NC		 3984 /* If this is a global symbol, we count the number of
3985 relocations we need for this symbol. */
3986 if (h != NULL)
3987 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3988 else
3989 {
3990 asection *s;
6edfbbad 3991 void *vpp;
6edf0760
NC		 3992
3993 /* Track dynamic relocs needed for local syms too. */
3994 s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
3995 sec, r_symndx);
3996 if (s == NULL)
3997 return FALSE;
3998
6edfbbad
DJ		 3999 vpp = &elf_section_data (s)->local_dynrel;
4000 head = (struct elf_m32r_dyn_relocs **) vpp;
6edf0760
NC		 4001 }
4002
4003 p = *head;
4004 if (p == NULL || p->sec != sec)
4005 {
4006 bfd_size_type amt = sizeof (*p);
47b0e7ad
NC		 4007
4008 p = bfd_alloc (dynobj, amt);
6edf0760
NC		 4009 if (p == NULL)
4010 return FALSE;
4011 p->next = *head;
4012 *head = p;
4013 p->sec = sec;
4014 p->count = 0;
4015 p->pc_count = 0;
4016 }
4017
4018 p->count += 1;
8ce757c4
NC		 4019 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
4020 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
4021 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
4022 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
6edf0760
NC		 4023 p->pc_count += 1;
4024 }
4025 break;
4026
252b5132
RH		 4027 /* This relocation describes the C++ object vtable hierarchy.
4028 Reconstruct it for later use during GC. */
6edf0760 4029 case R_M32R_RELA_GNU_VTINHERIT:
252b5132 4030 case R_M32R_GNU_VTINHERIT:
c152c796 4031 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
b34976b6 4032 return FALSE;
252b5132 4033 break;
c3668558 4034
252b5132
RH		 4035 /* This relocation describes which C++ vtable entries are actually
4036 used. Record for later use during GC. */
4037 case R_M32R_GNU_VTENTRY:
c152c796 4038 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
b34976b6 4039 return FALSE;
252b5132 4040 break;
6edf0760 4041 case R_M32R_RELA_GNU_VTENTRY:
c152c796 4042 if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
6edf0760
NC		 4043 return FALSE;
4044 break;
252b5132
RH		 4045 }
4046 }
c3668558 4047
b34976b6 4048 return TRUE;
252b5132 4049}
2f89ff8d 4050
b35d266b 4051static const struct bfd_elf_special_section m32r_elf_special_sections[] =
2f89ff8d 4052{
0112cd26
NC		 4053 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
4054 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4055 { NULL, 0, 0, 0, 0 }
7f4d3958
L		 4056};
4057
6edf0760 4058static bfd_boolean
47b0e7ad
NC		 4059m32r_elf_fake_sections (bfd *abfd,
4060 Elf_Internal_Shdr *hdr ATTRIBUTE_UNUSED,
4061 asection *sec)
6edf0760 4062{
47b0e7ad 4063 const char *name;
6edf0760
NC		 4064
4065 name = bfd_get_section_name (abfd, sec);
4066
4067 /* The generic elf_fake_sections will set up REL_HDR using the
4068 default kind of relocations. But, we may actually need both
4069 kinds of relocations, so we set up the second header here.
4070
4071 This is not necessary for the O32 ABI since that only uses Elf32_Rel
4072 relocations (cf. System V ABI, MIPS RISC Processor Supplement,
4073 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
4074 of the resulting empty .rela.<section> sections starts with
4075 sh_offset == object size, and ld doesn't allow that. While the check
4076 is arguably bogus for empty or SHT_NOBITS sections, it can easily be
4077 avoided by not emitting those useless sections in the first place. */
4078 if ((sec->flags & SEC_RELOC) != 0)
4079 {
4080 struct bfd_elf_section_data *esd;
4081 bfd_size_type amt = sizeof (Elf_Internal_Shdr);
4082
4083 esd = elf_section_data (sec);
4084 BFD_ASSERT (esd->rel_hdr2 == NULL);
47b0e7ad 4085 esd->rel_hdr2 = bfd_zalloc (abfd, amt);
6edf0760
NC		 4086 if (!esd->rel_hdr2)
4087 return FALSE;
4088 _bfd_elf_init_reloc_shdr (abfd, esd->rel_hdr2, sec,
4089 !sec->use_rela_p);
4090 }
4091
4092 return TRUE;
4093}
4094
4095static enum elf_reloc_type_class
47b0e7ad 4096m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
6edf0760
NC		 4097{
4098 switch ((int) ELF32_R_TYPE (rela->r_info))
4099 {
47b0e7ad
NC		 4100 case R_M32R_RELATIVE: return reloc_class_relative;
4101 case R_M32R_JMP_SLOT: return reloc_class_plt;
4102 case R_M32R_COPY: return reloc_class_copy;
4103 default: return reloc_class_normal;
6edf0760
NC		 4104 }
4105}
252b5132 4106\f
252b5132 4107#define ELF_ARCH bfd_arch_m32r
aa4f99bb
AO		 4108#define ELF_MACHINE_CODE EM_M32R
4109#define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
e916b64e 4110#define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
252b5132
RH		 4111
4112#define TARGET_BIG_SYM bfd_elf32_m32r_vec
4113#define TARGET_BIG_NAME "elf32-m32r"
6edf0760
NC		 4114#define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4115#define TARGET_LITTLE_NAME "elf32-m32rle"
252b5132 4116
6edf0760 4117#define elf_info_to_howto m32r_info_to_howto
252b5132
RH		 4118#define elf_info_to_howto_rel m32r_info_to_howto_rel
4119#define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4120#define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4121#define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4122#define elf_backend_relocate_section m32r_elf_relocate_section
4123#define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4124#define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4125#define elf_backend_check_relocs m32r_elf_check_relocs
4126
6edf0760
NC		 4127#define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4128#define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4129#define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
74541ad4
AM		 4130#define elf_backend_omit_section_dynsym \
4131 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
6edf0760
NC		 4132#define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4133#define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4134#define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4135#define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4136#define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4137
252b5132 4138#define elf_backend_can_gc_sections 1
6edf0760 4139/*#if !USE_REL
b491616a 4140#define elf_backend_rela_normal 1
6edf0760
NC		 4141#endif*/
4142#define elf_backend_can_refcount 1
4143#define elf_backend_want_got_plt 1
4144#define elf_backend_plt_readonly 1
4145#define elf_backend_want_plt_sym 0
4146#define elf_backend_got_header_size 12
4147
4148#define elf_backend_may_use_rel_p 1
4149#ifdef USE_M32R_OLD_RELOC
4150#define elf_backend_default_use_rela_p 0
4151#define elf_backend_may_use_rela_p 0
4152#else
4153#define elf_backend_default_use_rela_p 1
4154#define elf_backend_may_use_rela_p 1
4155#define elf_backend_fake_sections m32r_elf_fake_sections
b491616a 4156#endif
6edf0760 4157
252b5132
RH		 4158#define elf_backend_object_p m32r_elf_object_p
4159#define elf_backend_final_write_processing m32r_elf_final_write_processing
252b5132
RH		 4160#define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4161#define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4162#define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
29ef7005 4163#define elf_backend_special_sections m32r_elf_special_sections
c3668558 4164
252b5132 4165#include "elf32-target.h"
6edf0760 4166
47b0e7ad 4167#undef ELF_MAXPAGESIZE
6edf0760
NC		 4168#define ELF_MAXPAGESIZE 0x1000
4169
47b0e7ad 4170#undef TARGET_BIG_SYM
6edf0760 4171#define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
47b0e7ad 4172#undef TARGET_BIG_NAME
6edf0760 4173#define TARGET_BIG_NAME "elf32-m32r-linux"
47b0e7ad 4174#undef TARGET_LITTLE_SYM
6edf0760 4175#define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
47b0e7ad 4176#undef TARGET_LITTLE_NAME
6edf0760 4177#define TARGET_LITTLE_NAME "elf32-m32rle-linux"
47b0e7ad 4178#undef elf32_bed
6edf0760
NC		 4179#define elf32_bed elf32_m32r_lin_bed
4180
4181#include "elf32-target.h"
4182
GDB Binutils - Deliverables
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