1 /* M32R-specific support for 32-bit ELF.
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
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 3 of the License, or
10 (at your option) any later version.
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.
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
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
28 #define NOP_INSN 0x7000
29 #define MAKE_PARALLEL(insn) ((insn) | 0x8000)
31 /* Use REL instead of RELA to save space.
32 This only saves space in libraries and object files, but perhaps
33 relocs will be put in ROM? All in all though, REL relocs are a pain
40 /* Use RELA. But use REL to link old objects for backwords compatibility. */
42 /* Functions for the M32R ELF linker. */
44 /* The name of the dynamic interpreter. This is put in the .interp
47 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
49 /* The nop opcode we use. */
51 #define M32R_NOP 0x7000f000
53 #define PLT_EMPTY 0x10101010 /* RIE -> RIE */
55 /* The size in bytes of an entry in the procedure linkage table. */
57 #define PLT_ENTRY_SIZE 20
58 #define PLT_HEADER_SIZE 20
60 /* The first one entries in a procedure linkage table are reserved,
61 and the initial contents are unimportant (we zero them out).
62 Subsequent entries look like this. */
64 #define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
65 #define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
66 #define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
67 #define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
68 #define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
70 #define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
71 #define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
72 #define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
73 #define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
74 #define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
76 #define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
77 #define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
78 #define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
79 #define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
80 #define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
81 #define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
82 #define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
85 /* Utility to actually perform an R_M32R_10_PCREL reloc. */
87 static bfd_reloc_status_type
88 m32r_elf_do_10_pcrel_reloc (bfd *abfd,
89 reloc_howto_type *howto,
90 asection *input_section,
93 asection *symbol_section ATTRIBUTE_UNUSED,
97 bfd_signed_vma relocation;
99 bfd_reloc_status_type status;
101 /* Sanity check the address (offset in section). */
102 if (offset > bfd_get_section_limit (abfd, input_section))
103 return bfd_reloc_outofrange;
105 relocation = symbol_value + addend;
106 /* Make it pc relative. */
107 relocation -= (input_section->output_section->vma
108 + input_section->output_offset);
109 /* These jumps mask off the lower two bits of the current address
110 before doing pcrel calculations. */
111 relocation -= (offset & -(bfd_vma) 4);
113 if (relocation < -0x200 || relocation > 0x1ff)
114 status = bfd_reloc_overflow;
116 status = bfd_reloc_ok;
118 x = bfd_get_16 (abfd, data + offset);
119 relocation >>= howto->rightshift;
120 relocation <<= howto->bitpos;
121 x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
122 bfd_put_16 (abfd, (bfd_vma) x, data + offset);
127 /* Handle the R_M32R_10_PCREL reloc. */
129 static bfd_reloc_status_type
130 m32r_elf_10_pcrel_reloc (bfd * abfd,
131 arelent * reloc_entry,
134 asection * input_section,
136 char ** error_message ATTRIBUTE_UNUSED)
138 /* This part is from bfd_elf_generic_reloc. */
139 if (output_bfd != NULL
140 && (symbol->flags & BSF_SECTION_SYM) == 0
141 && (! reloc_entry->howto->partial_inplace
142 || reloc_entry->addend == 0))
144 reloc_entry->address += input_section->output_offset;
148 if (output_bfd != NULL)
149 /* FIXME: See bfd_perform_relocation. Is this right? */
150 return bfd_reloc_continue;
152 return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
154 data, reloc_entry->address,
157 + symbol->section->output_section->vma
158 + symbol->section->output_offset),
159 reloc_entry->addend);
162 /* Do generic partial_inplace relocation.
163 This is a local replacement for bfd_elf_generic_reloc. */
165 static bfd_reloc_status_type
166 m32r_elf_generic_reloc (bfd *input_bfd,
167 arelent *reloc_entry,
170 asection *input_section,
172 char **error_message ATTRIBUTE_UNUSED)
174 bfd_reloc_status_type ret;
176 bfd_byte *inplace_address;
178 /* This part is from bfd_elf_generic_reloc.
179 If we're relocating, and this an external symbol, we don't want
180 to change anything. */
181 if (output_bfd != NULL
182 && (symbol->flags & BSF_SECTION_SYM) == 0
183 && reloc_entry->addend == 0)
185 reloc_entry->address += input_section->output_offset;
189 /* Now do the reloc in the usual way.
190 ??? It would be nice to call bfd_elf_generic_reloc here,
191 but we have partial_inplace set. bfd_elf_generic_reloc will
192 pass the handling back to bfd_install_relocation which will install
193 a section relative addend which is wrong. */
195 /* Sanity check the address (offset in section). */
196 if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
197 return bfd_reloc_outofrange;
200 if (bfd_is_und_section (symbol->section)
201 && output_bfd == NULL)
202 ret = bfd_reloc_undefined;
204 if (bfd_is_com_section (symbol->section)
205 || output_bfd != NULL)
208 relocation = symbol->value;
210 /* Only do this for a final link. */
211 if (output_bfd == NULL)
213 relocation += symbol->section->output_section->vma;
214 relocation += symbol->section->output_offset;
217 relocation += reloc_entry->addend;
218 inplace_address = (bfd_byte *) data + reloc_entry->address;
221 x = ( (x & ~reloc_entry->howto->dst_mask) | \
222 (((x & reloc_entry->howto->src_mask) + relocation) & \
223 reloc_entry->howto->dst_mask))
225 switch (reloc_entry->howto->size)
229 short x = bfd_get_16 (input_bfd, inplace_address);
231 bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
236 unsigned long x = bfd_get_32 (input_bfd, inplace_address);
238 bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
245 if (output_bfd != NULL)
246 reloc_entry->address += input_section->output_offset;
251 /* Handle the R_M32R_SDA16 reloc.
252 This reloc is used to compute the address of objects in the small data area
253 and to perform loads and stores from that area.
254 The lower 16 bits are sign extended and added to the register specified
255 in the instruction, which is assumed to point to _SDA_BASE_. */
257 static bfd_reloc_status_type
258 m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
259 arelent *reloc_entry,
261 void * data ATTRIBUTE_UNUSED,
262 asection *input_section,
264 char **error_message ATTRIBUTE_UNUSED)
266 /* This part is from bfd_elf_generic_reloc. */
267 if (output_bfd != NULL
268 && (symbol->flags & BSF_SECTION_SYM) == 0
269 && (! reloc_entry->howto->partial_inplace
270 || reloc_entry->addend == 0))
272 reloc_entry->address += input_section->output_offset;
276 if (output_bfd != NULL)
277 /* FIXME: See bfd_perform_relocation. Is this right? */
278 return bfd_reloc_continue;
280 /* FIXME: not sure what to do here yet. But then again, the linker
281 may never call us. */
286 /* Handle the R_M32R_HI16_[SU]LO relocs.
287 HI16_SLO is for the add3 and load/store with displacement instructions.
288 HI16_ULO is for the or3 instruction.
289 For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
290 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
291 we must add one to the high 16 bytes (which will get subtracted off when
292 the low 16 bits are added).
293 These relocs have to be done in combination with an R_M32R_LO16 reloc
294 because there is a carry from the LO16 to the HI16. Here we just save
295 the information we need; we do the actual relocation when we see the LO16.
296 This code is copied from the elf32-mips.c. We also support an arbitrary
297 number of HI16 relocs to be associated with a single LO16 reloc. The
298 assembler sorts the relocs to ensure each HI16 immediately precedes its
299 LO16. However if there are multiple copies, the assembler may not find
300 the real LO16 so it picks the first one it finds. */
304 struct m32r_hi16 *next;
309 /* FIXME: This should not be a static variable. */
311 static struct m32r_hi16 *m32r_hi16_list;
313 static bfd_reloc_status_type
314 m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
315 arelent *reloc_entry,
318 asection *input_section,
320 char **error_message ATTRIBUTE_UNUSED)
322 bfd_reloc_status_type ret;
326 /* This part is from bfd_elf_generic_reloc.
327 If we're relocating, and this an external symbol, we don't want
328 to change anything. */
329 if (output_bfd != NULL
330 && (symbol->flags & BSF_SECTION_SYM) == 0
331 && reloc_entry->addend == 0)
333 reloc_entry->address += input_section->output_offset;
337 /* Sanity check the address (offset in section). */
338 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
339 return bfd_reloc_outofrange;
342 if (bfd_is_und_section (symbol->section)
343 && output_bfd == NULL)
344 ret = bfd_reloc_undefined;
346 if (bfd_is_com_section (symbol->section))
349 relocation = symbol->value;
351 relocation += symbol->section->output_section->vma;
352 relocation += symbol->section->output_offset;
353 relocation += reloc_entry->addend;
355 /* Save the information, and let LO16 do the actual relocation. */
356 n = bfd_malloc ((bfd_size_type) sizeof *n);
358 return bfd_reloc_outofrange;
359 n->addr = (bfd_byte *) data + reloc_entry->address;
360 n->addend = relocation;
361 n->next = m32r_hi16_list;
364 if (output_bfd != NULL)
365 reloc_entry->address += input_section->output_offset;
370 /* Handle an M32R ELF HI16 reloc. */
373 m32r_elf_relocate_hi16 (bfd *input_bfd,
375 Elf_Internal_Rela *relhi,
376 Elf_Internal_Rela *rello,
383 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
385 addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
386 if (type == R_M32R_HI16_SLO)
387 addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
391 addend += ((insn & 0xffff) << 16) + addlo;
393 /* Reaccount for sign extension of low part. */
394 if (type == R_M32R_HI16_SLO
395 && (addend & 0x8000) != 0)
398 bfd_put_32 (input_bfd,
399 (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
400 contents + relhi->r_offset);
403 /* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
404 inplace relocation; this function exists in order to do the
405 R_M32R_HI16_[SU]LO relocation described above. */
407 static bfd_reloc_status_type
408 m32r_elf_lo16_reloc (bfd *input_bfd,
409 arelent *reloc_entry,
412 asection *input_section,
414 char **error_message)
416 /* This part is from bfd_elf_generic_reloc.
417 If we're relocating, and this an external symbol, we don't want
418 to change anything. */
419 if (output_bfd != NULL
420 && (symbol->flags & BSF_SECTION_SYM) == 0
421 && reloc_entry->addend == 0)
423 reloc_entry->address += input_section->output_offset;
427 if (m32r_hi16_list != NULL)
437 struct m32r_hi16 *next;
439 /* Do the HI16 relocation. Note that we actually don't need
440 to know anything about the LO16 itself, except where to
441 find the low 16 bits of the addend needed by the LO16. */
442 insn = bfd_get_32 (input_bfd, l->addr);
443 vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
444 & 0xffff) ^ 0x8000) - 0x8000;
445 val = ((insn & 0xffff) << 16) + vallo;
448 /* Reaccount for sign extension of low part. */
449 if ((val & 0x8000) != 0)
452 insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
453 bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
460 m32r_hi16_list = NULL;
463 /* Now do the LO16 reloc in the usual way.
464 ??? It would be nice to call bfd_elf_generic_reloc here,
465 but we have partial_inplace set. bfd_elf_generic_reloc will
466 pass the handling back to bfd_install_relocation which will install
467 a section relative addend which is wrong. */
468 return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
469 input_section, output_bfd, error_message);
473 static reloc_howto_type m32r_elf_howto_table[] =
475 /* This reloc does nothing. */
476 HOWTO (R_M32R_NONE, /* type */
478 2, /* size (0 = byte, 1 = short, 2 = long) */
480 FALSE, /* pc_relative */
482 complain_overflow_bitfield, /* complain_on_overflow */
483 bfd_elf_generic_reloc, /* special_function */
484 "R_M32R_NONE", /* name */
485 FALSE, /* partial_inplace */
488 FALSE), /* pcrel_offset */
490 /* A 16 bit absolute relocation. */
491 HOWTO (R_M32R_16, /* type */
493 1, /* size (0 = byte, 1 = short, 2 = long) */
495 FALSE, /* pc_relative */
497 complain_overflow_bitfield, /* complain_on_overflow */
498 m32r_elf_generic_reloc,/* special_function */
499 "R_M32R_16", /* name */
500 TRUE, /* partial_inplace */
501 0xffff, /* src_mask */
502 0xffff, /* dst_mask */
503 FALSE), /* pcrel_offset */
505 /* A 32 bit absolute relocation. */
506 HOWTO (R_M32R_32, /* type */
508 2, /* size (0 = byte, 1 = short, 2 = long) */
510 FALSE, /* pc_relative */
512 complain_overflow_bitfield, /* complain_on_overflow */
513 m32r_elf_generic_reloc,/* special_function */
514 "R_M32R_32", /* name */
515 TRUE, /* partial_inplace */
516 0xffffffff, /* src_mask */
517 0xffffffff, /* dst_mask */
518 FALSE), /* pcrel_offset */
520 /* A 24 bit address. */
521 HOWTO (R_M32R_24, /* type */
523 2, /* size (0 = byte, 1 = short, 2 = long) */
525 FALSE, /* pc_relative */
527 complain_overflow_unsigned, /* complain_on_overflow */
528 m32r_elf_generic_reloc,/* special_function */
529 "R_M32R_24", /* name */
530 TRUE, /* partial_inplace */
531 0xffffff, /* src_mask */
532 0xffffff, /* dst_mask */
533 FALSE), /* pcrel_offset */
535 /* An PC Relative 10-bit relocation, shifted by 2.
536 This reloc is complicated because relocations are relative to pc & -4.
537 i.e. branches in the right insn slot use the address of the left insn
539 /* ??? It's not clear whether this should have partial_inplace set or not.
540 Branch relaxing in the assembler can store the addend in the insn,
541 and if bfd_install_relocation gets called the addend may get added
543 HOWTO (R_M32R_10_PCREL, /* type */
545 1, /* size (0 = byte, 1 = short, 2 = long) */
547 TRUE, /* pc_relative */
549 complain_overflow_signed, /* complain_on_overflow */
550 m32r_elf_10_pcrel_reloc, /* special_function */
551 "R_M32R_10_PCREL", /* name */
552 FALSE, /* partial_inplace */
555 TRUE), /* pcrel_offset */
557 /* A relative 18 bit relocation, right shifted by 2. */
558 HOWTO (R_M32R_18_PCREL, /* type */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
562 TRUE, /* pc_relative */
564 complain_overflow_signed, /* complain_on_overflow */
565 bfd_elf_generic_reloc, /* special_function */
566 "R_M32R_18_PCREL", /* name */
567 FALSE, /* partial_inplace */
568 0xffff, /* src_mask */
569 0xffff, /* dst_mask */
570 TRUE), /* pcrel_offset */
572 /* A relative 26 bit relocation, right shifted by 2. */
573 /* ??? It's not clear whether this should have partial_inplace set or not.
574 Branch relaxing in the assembler can store the addend in the insn,
575 and if bfd_install_relocation gets called the addend may get added
577 HOWTO (R_M32R_26_PCREL, /* type */
579 2, /* size (0 = byte, 1 = short, 2 = long) */
581 TRUE, /* pc_relative */
583 complain_overflow_signed, /* complain_on_overflow */
584 bfd_elf_generic_reloc, /* special_function */
585 "R_M32R_26_PCREL", /* name */
586 FALSE, /* partial_inplace */
587 0xffffff, /* src_mask */
588 0xffffff, /* dst_mask */
589 TRUE), /* pcrel_offset */
591 /* High 16 bits of address when lower 16 is or'd in. */
592 HOWTO (R_M32R_HI16_ULO, /* type */
594 2, /* size (0 = byte, 1 = short, 2 = long) */
596 FALSE, /* pc_relative */
598 complain_overflow_dont, /* complain_on_overflow */
599 m32r_elf_hi16_reloc, /* special_function */
600 "R_M32R_HI16_ULO", /* name */
601 TRUE, /* partial_inplace */
602 0x0000ffff, /* src_mask */
603 0x0000ffff, /* dst_mask */
604 FALSE), /* pcrel_offset */
606 /* High 16 bits of address when lower 16 is added in. */
607 HOWTO (R_M32R_HI16_SLO, /* type */
609 2, /* size (0 = byte, 1 = short, 2 = long) */
611 FALSE, /* pc_relative */
613 complain_overflow_dont, /* complain_on_overflow */
614 m32r_elf_hi16_reloc, /* special_function */
615 "R_M32R_HI16_SLO", /* name */
616 TRUE, /* partial_inplace */
617 0x0000ffff, /* src_mask */
618 0x0000ffff, /* dst_mask */
619 FALSE), /* pcrel_offset */
621 /* Lower 16 bits of address. */
622 HOWTO (R_M32R_LO16, /* type */
624 2, /* size (0 = byte, 1 = short, 2 = long) */
626 FALSE, /* pc_relative */
628 complain_overflow_dont, /* complain_on_overflow */
629 m32r_elf_lo16_reloc, /* special_function */
630 "R_M32R_LO16", /* name */
631 TRUE, /* partial_inplace */
632 0x0000ffff, /* src_mask */
633 0x0000ffff, /* dst_mask */
634 FALSE), /* pcrel_offset */
636 /* Small data area 16 bits offset. */
637 HOWTO (R_M32R_SDA16, /* type */
639 2, /* size (0 = byte, 1 = short, 2 = long) */
641 FALSE, /* pc_relative */
643 complain_overflow_signed, /* complain_on_overflow */
644 m32r_elf_sda16_reloc, /* special_function */
645 "R_M32R_SDA16", /* name */
646 TRUE, /* partial_inplace */ /* FIXME: correct? */
647 0x0000ffff, /* src_mask */
648 0x0000ffff, /* dst_mask */
649 FALSE), /* pcrel_offset */
651 /* GNU extension to record C++ vtable hierarchy. */
652 HOWTO (R_M32R_GNU_VTINHERIT, /* type */
654 2, /* size (0 = byte, 1 = short, 2 = long) */
656 FALSE, /* pc_relative */
658 complain_overflow_dont, /* complain_on_overflow */
659 NULL, /* special_function */
660 "R_M32R_GNU_VTINHERIT", /* name */
661 FALSE, /* partial_inplace */
664 FALSE), /* pcrel_offset */
666 /* GNU extension to record C++ vtable member usage. */
667 HOWTO (R_M32R_GNU_VTENTRY, /* type */
669 2, /* size (0 = byte, 1 = short, 2 = long) */
671 FALSE, /* pc_relative */
673 complain_overflow_dont, /* complain_on_overflow */
674 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
675 "R_M32R_GNU_VTENTRY", /* name */
676 FALSE, /* partial_inplace */
679 FALSE), /* pcrel_offset */
702 /* A 16 bit absolute relocation. */
703 HOWTO (R_M32R_16_RELA, /* type */
705 1, /* size (0 = byte, 1 = short, 2 = long) */
707 FALSE, /* pc_relative */
709 complain_overflow_bitfield, /* complain_on_overflow */
710 bfd_elf_generic_reloc, /* special_function */
711 "R_M32R_16_RELA", /* name */
712 FALSE, /* partial_inplace */
713 0xffff, /* src_mask */
714 0xffff, /* dst_mask */
715 FALSE), /* pcrel_offset */
717 /* A 32 bit absolute relocation. */
718 HOWTO (R_M32R_32_RELA, /* type */
720 2, /* size (0 = byte, 1 = short, 2 = long) */
722 FALSE, /* pc_relative */
724 complain_overflow_bitfield, /* complain_on_overflow */
725 bfd_elf_generic_reloc,/* special_function */
726 "R_M32R_32_RELA", /* name */
727 FALSE, /* partial_inplace */
728 0xffffffff, /* src_mask */
729 0xffffffff, /* dst_mask */
730 FALSE), /* pcrel_offset */
732 /* A 24 bit address. */
733 HOWTO (R_M32R_24_RELA, /* type */
735 2, /* size (0 = byte, 1 = short, 2 = long) */
737 FALSE, /* pc_relative */
739 complain_overflow_unsigned, /* complain_on_overflow */
740 bfd_elf_generic_reloc,/* special_function */
741 "R_M32R_24_RELA", /* name */
742 FALSE, /* partial_inplace */
743 0xffffff, /* src_mask */
744 0xffffff, /* dst_mask */
745 FALSE), /* pcrel_offset */
747 HOWTO (R_M32R_10_PCREL_RELA, /* type */
749 1, /* size (0 = byte, 1 = short, 2 = long) */
751 TRUE, /* pc_relative */
753 complain_overflow_signed, /* complain_on_overflow */
754 m32r_elf_10_pcrel_reloc, /* special_function */
755 "R_M32R_10_PCREL_RELA",/* name */
756 FALSE, /* partial_inplace */
759 TRUE), /* pcrel_offset */
761 /* A relative 18 bit relocation, right shifted by 2. */
762 HOWTO (R_M32R_18_PCREL_RELA, /* type */
764 2, /* size (0 = byte, 1 = short, 2 = long) */
766 TRUE, /* pc_relative */
768 complain_overflow_signed, /* complain_on_overflow */
769 bfd_elf_generic_reloc, /* special_function */
770 "R_M32R_18_PCREL_RELA",/* name */
771 FALSE, /* partial_inplace */
772 0xffff, /* src_mask */
773 0xffff, /* dst_mask */
774 TRUE), /* pcrel_offset */
776 /* A relative 26 bit relocation, right shifted by 2. */
777 HOWTO (R_M32R_26_PCREL_RELA, /* type */
779 2, /* size (0 = byte, 1 = short, 2 = long) */
781 TRUE, /* pc_relative */
783 complain_overflow_signed, /* complain_on_overflow */
784 bfd_elf_generic_reloc, /* special_function */
785 "R_M32R_26_PCREL_RELA",/* name */
786 FALSE, /* partial_inplace */
787 0xffffff, /* src_mask */
788 0xffffff, /* dst_mask */
789 TRUE), /* pcrel_offset */
791 /* High 16 bits of address when lower 16 is or'd in. */
792 HOWTO (R_M32R_HI16_ULO_RELA, /* type */
794 2, /* size (0 = byte, 1 = short, 2 = long) */
796 FALSE, /* pc_relative */
798 complain_overflow_dont, /* complain_on_overflow */
799 bfd_elf_generic_reloc, /* special_function */
800 "R_M32R_HI16_ULO_RELA",/* name */
801 FALSE, /* partial_inplace */
802 0x0000ffff, /* src_mask */
803 0x0000ffff, /* dst_mask */
804 FALSE), /* pcrel_offset */
806 /* High 16 bits of address when lower 16 is added in. */
807 HOWTO (R_M32R_HI16_SLO_RELA, /* type */
809 2, /* size (0 = byte, 1 = short, 2 = long) */
811 FALSE, /* pc_relative */
813 complain_overflow_dont, /* complain_on_overflow */
814 bfd_elf_generic_reloc, /* special_function */
815 "R_M32R_HI16_SLO_RELA",/* name */
816 FALSE, /* partial_inplace */
817 0x0000ffff, /* src_mask */
818 0x0000ffff, /* dst_mask */
819 FALSE), /* pcrel_offset */
821 /* Lower 16 bits of address. */
822 HOWTO (R_M32R_LO16_RELA, /* type */
824 2, /* size (0 = byte, 1 = short, 2 = long) */
826 FALSE, /* pc_relative */
828 complain_overflow_dont, /* complain_on_overflow */
829 bfd_elf_generic_reloc, /* special_function */
830 "R_M32R_LO16_RELA", /* name */
831 FALSE, /* partial_inplace */
832 0x0000ffff, /* src_mask */
833 0x0000ffff, /* dst_mask */
834 FALSE), /* pcrel_offset */
836 /* Small data area 16 bits offset. */
837 HOWTO (R_M32R_SDA16_RELA, /* type */
839 2, /* size (0 = byte, 1 = short, 2 = long) */
841 FALSE, /* pc_relative */
843 complain_overflow_signed, /* complain_on_overflow */
844 bfd_elf_generic_reloc, /* special_function */
845 "R_M32R_SDA16_RELA", /* name */
846 TRUE, /* partial_inplace */ /* FIXME: correct? */
847 0x0000ffff, /* src_mask */
848 0x0000ffff, /* dst_mask */
849 FALSE), /* pcrel_offset */
851 /* GNU extension to record C++ vtable hierarchy. */
852 HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
854 2, /* size (0 = byte, 1 = short, 2 = long) */
856 FALSE, /* pc_relative */
858 complain_overflow_dont, /* complain_on_overflow */
859 NULL, /* special_function */
860 "R_M32R_RELA_GNU_VTINHERIT", /* name */
861 FALSE, /* partial_inplace */
864 FALSE), /* pcrel_offset */
866 /* GNU extension to record C++ vtable member usage. */
867 HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
869 2, /* size (0 = byte, 1 = short, 2 = long) */
871 FALSE, /* pc_relative */
873 complain_overflow_dont, /* complain_on_overflow */
874 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
875 "R_M32R_RELA_GNU_VTENTRY", /* name */
876 FALSE, /* partial_inplace */
879 FALSE), /* pcrel_offset */
881 /* A 32 bit PC relative relocation. */
882 HOWTO (R_M32R_REL32, /* type */
884 2, /* size (0 = byte, 1 = short, 2 = long) */
886 TRUE, /* pc_relative */
888 complain_overflow_bitfield, /* complain_on_overflow */
889 bfd_elf_generic_reloc,/* special_function */
890 "R_M32R_REL32", /* name */
891 FALSE, /* partial_inplace */
892 0xffffffff, /* src_mask */
893 0xffffffff, /* dst_mask */
894 TRUE), /* pcrel_offset */
899 /* Like R_M32R_24, but referring to the GOT table entry for
901 HOWTO (R_M32R_GOT24, /* type */
903 2, /* size (0 = byte, 1 = short, 2 = long) */
905 FALSE, /* pc_relative */
907 complain_overflow_unsigned, /* complain_on_overflow */
908 bfd_elf_generic_reloc, /* special_function */
909 "R_M32R_GOT24", /* name */
910 FALSE, /* partial_inplace */
911 0xffffff, /* src_mask */
912 0xffffff, /* dst_mask */
913 FALSE), /* pcrel_offset */
915 /* Like R_M32R_PCREL, but referring to the procedure linkage table
916 entry for the symbol. */
917 HOWTO (R_M32R_26_PLTREL, /* type */
919 2, /* size (0 = byte, 1 = short, 2 = long) */
921 TRUE, /* pc_relative */
923 complain_overflow_signed, /* complain_on_overflow */
924 bfd_elf_generic_reloc, /* special_function */
925 "R_M32R_26_PLTREL", /* name */
926 FALSE, /* partial_inplace */
927 0xffffff, /* src_mask */
928 0xffffff, /* dst_mask */
929 TRUE), /* pcrel_offset */
931 /* This is used only by the dynamic linker. The symbol should exist
932 both in the object being run and in some shared library. The
933 dynamic linker copies the data addressed by the symbol from the
934 shared library into the object, because the object being
935 run has to have the data at some particular address. */
936 HOWTO (R_M32R_COPY, /* type */
938 2, /* size (0 = byte, 1 = short, 2 = long) */
940 FALSE, /* pc_relative */
942 complain_overflow_bitfield, /* complain_on_overflow */
943 bfd_elf_generic_reloc, /* special_function */
944 "R_M32R_COPY", /* name */
945 FALSE, /* partial_inplace */
946 0xffffffff, /* src_mask */
947 0xffffffff, /* dst_mask */
948 FALSE), /* pcrel_offset */
950 /* Like R_M32R_24, but used when setting global offset table
952 HOWTO (R_M32R_GLOB_DAT, /* type */
954 2, /* size (0 = byte, 1 = short, 2 = long) */
956 FALSE, /* pc_relative */
958 complain_overflow_bitfield, /* complain_on_overflow */
959 bfd_elf_generic_reloc, /* special_function */
960 "R_M32R_GLOB_DAT", /* name */
961 FALSE, /* partial_inplace */
962 0xffffffff, /* src_mask */
963 0xffffffff, /* dst_mask */
964 FALSE), /* pcrel_offset */
966 /* Marks a procedure linkage table entry for a symbol. */
967 HOWTO (R_M32R_JMP_SLOT, /* type */
969 2, /* size (0 = byte, 1 = short, 2 = long) */
971 FALSE, /* pc_relative */
973 complain_overflow_bitfield, /* complain_on_overflow */
974 bfd_elf_generic_reloc, /* special_function */
975 "R_M32R_JMP_SLOT", /* name */
976 FALSE, /* partial_inplace */
977 0xffffffff, /* src_mask */
978 0xffffffff, /* dst_mask */
979 FALSE), /* pcrel_offset */
981 /* Used only by the dynamic linker. When the object is run, this
982 longword is set to the load address of the object, plus the
984 HOWTO (R_M32R_RELATIVE, /* type */
986 2, /* size (0 = byte, 1 = short, 2 = long) */
988 FALSE, /* pc_relative */
990 complain_overflow_bitfield, /* complain_on_overflow */
991 bfd_elf_generic_reloc, /* special_function */
992 "R_M32R_RELATIVE", /* name */
993 FALSE, /* partial_inplace */
994 0xffffffff, /* src_mask */
995 0xffffffff, /* dst_mask */
996 FALSE), /* pcrel_offset */
998 HOWTO (R_M32R_GOTOFF, /* type */
1000 2, /* size (0 = byte, 1 = short, 2 = long) */
1002 FALSE, /* pc_relative */
1004 complain_overflow_bitfield, /* complain_on_overflow */
1005 bfd_elf_generic_reloc, /* special_function */
1006 "R_M32R_GOTOFF", /* name */
1007 FALSE, /* partial_inplace */
1008 0xffffff, /* src_mask */
1009 0xffffff, /* dst_mask */
1010 FALSE), /* pcrel_offset */
1012 /* An PC Relative 24-bit relocation used when setting PIC offset
1014 HOWTO (R_M32R_GOTPC24, /* type */
1016 2, /* size (0 = byte, 1 = short, 2 = long) */
1018 TRUE, /* pc_relative */
1020 complain_overflow_unsigned, /* complain_on_overflow */
1021 bfd_elf_generic_reloc, /* special_function */
1022 "R_M32R_GOTPC24", /* name */
1023 FALSE, /* partial_inplace */
1024 0xffffff, /* src_mask */
1025 0xffffff, /* dst_mask */
1026 TRUE), /* pcrel_offset */
1028 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1030 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1031 16, /* rightshift */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 FALSE, /* pc_relative */
1036 complain_overflow_dont, /* complain_on_overflow */
1037 bfd_elf_generic_reloc, /* special_function */
1038 "R_M32R_GOT16_HI_ULO", /* name */
1039 FALSE, /* partial_inplace */
1040 0x0000ffff, /* src_mask */
1041 0x0000ffff, /* dst_mask */
1042 FALSE), /* pcrel_offset */
1044 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1046 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1047 16, /* rightshift */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 FALSE, /* pc_relative */
1052 complain_overflow_dont, /* complain_on_overflow */
1053 bfd_elf_generic_reloc, /* special_function */
1054 "R_M32R_GOT16_HI_SLO", /* name */
1055 FALSE, /* partial_inplace */
1056 0x0000ffff, /* src_mask */
1057 0x0000ffff, /* dst_mask */
1058 FALSE), /* pcrel_offset */
1060 /* Like R_M32R_LO16, but referring to the GOT table entry for
1062 HOWTO (R_M32R_GOT16_LO, /* type */
1064 2, /* size (0 = byte, 1 = short, 2 = long) */
1066 FALSE, /* pc_relative */
1068 complain_overflow_dont, /* complain_on_overflow */
1069 bfd_elf_generic_reloc, /* special_function */
1070 "R_M32R_GOT16_LO", /* name */
1071 FALSE, /* partial_inplace */
1072 0x0000ffff, /* src_mask */
1073 0x0000ffff, /* dst_mask */
1074 FALSE), /* pcrel_offset */
1076 /* An PC Relative relocation used when setting PIC offset table register.
1077 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1079 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1080 16, /* rightshift */
1081 2, /* size (0 = byte, 1 = short, 2 = long) */
1083 FALSE, /* pc_relative */
1085 complain_overflow_dont, /* complain_on_overflow */
1086 bfd_elf_generic_reloc, /* special_function */
1087 "R_M32R_GOTPC_HI_ULO", /* name */
1088 FALSE, /* partial_inplace */
1089 0x0000ffff, /* src_mask */
1090 0x0000ffff, /* dst_mask */
1091 TRUE), /* pcrel_offset */
1093 /* An PC Relative relocation used when setting PIC offset table register.
1094 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1096 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1097 16, /* rightshift */
1098 2, /* size (0 = byte, 1 = short, 2 = long) */
1100 FALSE, /* pc_relative */
1102 complain_overflow_dont, /* complain_on_overflow */
1103 bfd_elf_generic_reloc, /* special_function */
1104 "R_M32R_GOTPC_HI_SLO", /* name */
1105 FALSE, /* partial_inplace */
1106 0x0000ffff, /* src_mask */
1107 0x0000ffff, /* dst_mask */
1108 TRUE), /* pcrel_offset */
1110 /* An PC Relative relocation used when setting PIC offset table register.
1111 Like R_M32R_LO16, but referring to the GOT table entry for
1113 HOWTO (R_M32R_GOTPC_LO, /* type */
1115 2, /* size (0 = byte, 1 = short, 2 = long) */
1117 FALSE, /* pc_relative */
1119 complain_overflow_dont, /* complain_on_overflow */
1120 bfd_elf_generic_reloc, /* special_function */
1121 "R_M32R_GOTPC_LO", /* name */
1122 FALSE, /* partial_inplace */
1123 0x0000ffff, /* src_mask */
1124 0x0000ffff, /* dst_mask */
1125 TRUE), /* pcrel_offset */
1127 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1128 16, /* rightshift */
1129 2, /* size (0 = byte, 1 = short, 2 = long) */
1131 FALSE, /* pc_relative */
1133 complain_overflow_dont, /* complain_on_overflow */
1134 bfd_elf_generic_reloc, /* special_function */
1135 "R_M32R_GOTOFF_HI_ULO",/* name */
1136 FALSE, /* partial_inplace */
1137 0x0000ffff, /* src_mask */
1138 0x0000ffff, /* dst_mask */
1139 FALSE), /* pcrel_offset */
1141 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1142 16, /* rightshift */
1143 2, /* size (0 = byte, 1 = short, 2 = long) */
1145 FALSE, /* pc_relative */
1147 complain_overflow_dont, /* complain_on_overflow */
1148 bfd_elf_generic_reloc, /* special_function */
1149 "R_M32R_GOTOFF_HI_SLO",/* name */
1150 FALSE, /* partial_inplace */
1151 0x0000ffff, /* src_mask */
1152 0x0000ffff, /* dst_mask */
1153 FALSE), /* pcrel_offset */
1155 HOWTO (R_M32R_GOTOFF_LO, /* type */
1157 2, /* size (0 = byte, 1 = short, 2 = long) */
1159 FALSE, /* pc_relative */
1161 complain_overflow_dont, /* complain_on_overflow */
1162 bfd_elf_generic_reloc, /* special_function */
1163 "R_M32R_GOTOFF_LO", /* name */
1164 FALSE, /* partial_inplace */
1165 0x0000ffff, /* src_mask */
1166 0x0000ffff, /* dst_mask */
1167 FALSE), /* pcrel_offset */
1170 /* Map BFD reloc types to M32R ELF reloc types. */
1172 struct m32r_reloc_map
1174 bfd_reloc_code_real_type bfd_reloc_val;
1175 unsigned char elf_reloc_val;
1178 #ifdef USE_M32R_OLD_RELOC
1179 static const struct m32r_reloc_map m32r_reloc_map_old[] =
1181 { BFD_RELOC_NONE, R_M32R_NONE },
1182 { BFD_RELOC_16, R_M32R_16 },
1183 { BFD_RELOC_32, R_M32R_32 },
1184 { BFD_RELOC_M32R_24, R_M32R_24 },
1185 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1186 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1187 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1188 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1189 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1190 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1191 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1192 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1193 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1196 static const struct m32r_reloc_map m32r_reloc_map[] =
1198 { BFD_RELOC_NONE, R_M32R_NONE },
1199 { BFD_RELOC_16, R_M32R_16_RELA },
1200 { BFD_RELOC_32, R_M32R_32_RELA },
1201 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1202 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1203 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1204 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1205 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1206 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1207 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1208 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1209 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1210 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
1211 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
1213 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1214 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1215 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1216 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1217 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1218 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1219 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1220 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1221 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1222 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1223 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1224 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1225 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1226 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
1227 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1228 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1229 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
1233 static reloc_howto_type *
1234 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1235 bfd_reloc_code_real_type code)
1239 #ifdef USE_M32R_OLD_RELOC
1241 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1243 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1244 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1246 #else /* ! USE_M32R_OLD_RELOC */
1249 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1251 if (m32r_reloc_map[i].bfd_reloc_val == code)
1252 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
1258 static reloc_howto_type *
1259 bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1265 i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1267 if (m32r_elf_howto_table[i].name != NULL
1268 && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1269 return &m32r_elf_howto_table[i];
1274 /* Set the howto pointer for an M32R ELF reloc. */
1277 m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1279 Elf_Internal_Rela *dst)
1281 unsigned int r_type;
1283 r_type = ELF32_R_TYPE (dst->r_info);
1284 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY);
1285 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1289 m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1291 Elf_Internal_Rela *dst)
1293 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1294 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1295 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1296 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1300 /* Given a BFD section, try to locate the corresponding ELF section
1304 _bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1308 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1310 *retval = SHN_M32R_SCOMMON;
1316 /* M32R ELF uses two common sections. One is the usual one, and the other
1317 is for small objects. All the small objects are kept together, and then
1318 referenced via one register, which yields faster assembler code. It is
1319 up to the compiler to emit an instruction to load the register with
1320 _SDA_BASE. This is what we use for the small common section. This
1321 approach is copied from elf32-mips.c. */
1322 static asection m32r_elf_scom_section;
1323 static asymbol m32r_elf_scom_symbol;
1324 static asymbol *m32r_elf_scom_symbol_ptr;
1326 /* Handle the special M32R section numbers that a symbol may use. */
1329 _bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
1331 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
1333 switch (elfsym->internal_elf_sym.st_shndx)
1335 case SHN_M32R_SCOMMON:
1336 if (m32r_elf_scom_section.name == NULL)
1338 /* Initialize the small common section. */
1339 m32r_elf_scom_section.name = ".scommon";
1340 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1341 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1342 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1343 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1344 m32r_elf_scom_symbol.name = ".scommon";
1345 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1346 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1347 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1349 asym->section = &m32r_elf_scom_section;
1350 asym->value = elfsym->internal_elf_sym.st_size;
1355 /* Hook called by the linker routine which adds symbols from an object
1356 file. We must handle the special M32R section numbers here.
1357 We also keep watching for whether we need to create the sdata special
1361 m32r_elf_add_symbol_hook (bfd *abfd,
1362 struct bfd_link_info *info,
1363 Elf_Internal_Sym *sym,
1365 flagword *flagsp ATTRIBUTE_UNUSED,
1369 if (! info->relocatable
1370 && (*namep)[0] == '_' && (*namep)[1] == 'S'
1371 && strcmp (*namep, "_SDA_BASE_") == 0
1372 && is_elf_hash_table (info->hash))
1374 /* This is simpler than using _bfd_elf_create_linker_section
1375 (our needs are simpler than ppc's needs). Also
1376 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1377 section already exists a new one is created that follows it which
1378 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1379 struct elf_link_hash_entry *h;
1380 struct bfd_link_hash_entry *bh;
1381 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1383 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
1386 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1387 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1389 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1393 bfd_set_section_alignment (abfd, s, 2);
1396 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1397 FALSE, FALSE, FALSE);
1399 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1400 && !(_bfd_generic_link_add_one_symbol (info,
1408 get_elf_backend_data (abfd)->collect,
1411 h = (struct elf_link_hash_entry *) bh;
1412 h->type = STT_OBJECT;
1415 switch (sym->st_shndx)
1417 case SHN_M32R_SCOMMON:
1418 *secp = bfd_make_section_old_way (abfd, ".scommon");
1419 (*secp)->flags |= SEC_IS_COMMON;
1420 *valp = sym->st_size;
1427 /* We have to figure out the SDA_BASE value, so that we can adjust the
1428 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1429 BFD. If we can't find it, we're stuck. We cache it in the ELF
1430 target data. We don't need to adjust the symbol value for an
1431 external symbol if we are producing relocatable output. */
1433 static bfd_reloc_status_type
1434 m32r_elf_final_sda_base (bfd *output_bfd,
1435 struct bfd_link_info *info,
1436 const char **error_message,
1439 if (elf_gp (output_bfd) == 0)
1441 struct bfd_link_hash_entry *h;
1443 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
1444 if (h != NULL && h->type == bfd_link_hash_defined)
1445 elf_gp (output_bfd) = (h->u.def.value
1446 + h->u.def.section->output_section->vma
1447 + h->u.def.section->output_offset);
1450 /* Only get the error once. */
1451 *psb = elf_gp (output_bfd) = 4;
1453 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1454 return bfd_reloc_dangerous;
1457 *psb = elf_gp (output_bfd);
1458 return bfd_reloc_ok;
1461 /* Return size of a PLT entry. */
1462 #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1464 /* The m32r linker needs to keep track of the number of relocs that it
1465 decides to copy in check_relocs for each symbol. This is so that
1466 it can discard PC relative relocs if it doesn't need them when
1467 linking with -Bsymbolic. We store the information in a field
1468 extending the regular ELF linker hash table. */
1470 /* This structure keeps track of the number of PC relative relocs we
1471 have copied for a given symbol. */
1473 struct elf_m32r_pcrel_relocs_copied
1476 struct elf_m32r_pcrel_relocs_copied *next;
1477 /* A section in dynobj. */
1479 /* Number of relocs copied in this section. */
1480 bfd_size_type count;
1483 /* The sh linker needs to keep track of the number of relocs that it
1484 decides to copy as dynamic relocs in check_relocs for each symbol.
1485 This is so that it can later discard them if they are found to be
1486 unnecessary. We store the information in a field extending the
1487 regular ELF linker hash table. */
1489 struct elf_m32r_dyn_relocs
1491 struct elf_m32r_dyn_relocs *next;
1493 /* The input section of the reloc. */
1496 /* Total number of relocs copied for the input section. */
1497 bfd_size_type count;
1499 /* Number of pc-relative relocs copied for the input section. */
1500 bfd_size_type pc_count;
1504 /* m32r ELF linker hash entry. */
1506 struct elf_m32r_link_hash_entry
1508 struct elf_link_hash_entry root;
1510 /* Track dynamic relocs copied for this symbol. */
1511 struct elf_m32r_dyn_relocs *dyn_relocs;
1514 /* m32r ELF linker hash table. */
1516 struct elf_m32r_link_hash_table
1518 struct elf_link_hash_table root;
1520 /* Short-cuts to get to dynamic linker sections. */
1529 /* Small local sym cache. */
1530 struct sym_cache sym_cache;
1533 /* Traverse an m32r ELF linker hash table. */
1535 #define m32r_elf_link_hash_traverse(table, func, info) \
1536 (elf_link_hash_traverse \
1538 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
1541 /* Get the m32r ELF linker hash table from a link_info structure. */
1543 #define m32r_elf_hash_table(p) \
1544 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1545 == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
1547 /* Create an entry in an m32r ELF linker hash table. */
1549 static struct bfd_hash_entry *
1550 m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1551 struct bfd_hash_table *table,
1554 struct elf_m32r_link_hash_entry *ret =
1555 (struct elf_m32r_link_hash_entry *) entry;
1557 /* Allocate the structure if it has not already been allocated by a
1560 ret = bfd_hash_allocate (table,
1561 sizeof (struct elf_m32r_link_hash_entry));
1565 /* Call the allocation method of the superclass. */
1566 ret = ((struct elf_m32r_link_hash_entry *)
1567 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1571 struct elf_m32r_link_hash_entry *eh;
1573 eh = (struct elf_m32r_link_hash_entry *) ret;
1574 eh->dyn_relocs = NULL;
1577 return (struct bfd_hash_entry *) ret;
1580 /* Create an m32r ELF linker hash table. */
1582 static struct bfd_link_hash_table *
1583 m32r_elf_link_hash_table_create (bfd *abfd)
1585 struct elf_m32r_link_hash_table *ret;
1586 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
1588 ret = bfd_malloc (amt);
1592 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1593 m32r_elf_link_hash_newfunc,
1594 sizeof (struct elf_m32r_link_hash_entry),
1602 ret->sgotplt = NULL;
1603 ret->srelgot = NULL;
1605 ret->srelplt = NULL;
1606 ret->sdynbss = NULL;
1607 ret->srelbss = NULL;
1608 ret->sym_cache.abfd = NULL;
1610 return &ret->root.root;
1613 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1614 shortcuts to them in our hash table. */
1617 create_got_section (bfd *dynobj, struct bfd_link_info *info)
1619 struct elf_m32r_link_hash_table *htab;
1621 if (! _bfd_elf_create_got_section (dynobj, info))
1624 htab = m32r_elf_hash_table (info);
1628 htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1629 htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1630 htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1631 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
1637 /* Create dynamic sections when linking against a dynamic object. */
1640 m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
1642 struct elf_m32r_link_hash_table *htab;
1643 flagword flags, pltflags;
1645 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1646 int ptralign = 2; /* 32bit */
1648 htab = m32r_elf_hash_table (info);
1652 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1653 .rel[a].bss sections. */
1654 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1655 | SEC_LINKER_CREATED);
1658 pltflags |= SEC_CODE;
1659 if (bed->plt_not_loaded)
1660 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1661 if (bed->plt_readonly)
1662 pltflags |= SEC_READONLY;
1664 s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
1667 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1670 if (bed->want_plt_sym)
1672 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1674 struct bfd_link_hash_entry *bh = NULL;
1675 struct elf_link_hash_entry *h;
1677 if (! (_bfd_generic_link_add_one_symbol
1678 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1679 (bfd_vma) 0, NULL, FALSE,
1680 get_elf_backend_data (abfd)->collect, &bh)))
1682 h = (struct elf_link_hash_entry *) bh;
1684 h->type = STT_OBJECT;
1685 htab->root.hplt = h;
1688 && ! bfd_elf_link_record_dynamic_symbol (info, h))
1692 s = bfd_make_section_with_flags (abfd,
1693 bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
1694 flags | SEC_READONLY);
1697 || ! bfd_set_section_alignment (abfd, s, ptralign))
1700 if (htab->sgot == NULL
1701 && ! create_got_section (abfd, info))
1705 const char *secname;
1710 for (sec = abfd->sections; sec; sec = sec->next)
1712 secflags = bfd_get_section_flags (abfd, sec);
1713 if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
1714 || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
1716 secname = bfd_get_section_name (abfd, sec);
1717 relname = bfd_malloc ((bfd_size_type) strlen (secname) + 6);
1718 strcpy (relname, ".rela");
1719 strcat (relname, secname);
1720 if (bfd_get_section_by_name (abfd, secname))
1722 s = bfd_make_section_with_flags (abfd, relname,
1723 flags | SEC_READONLY);
1725 || ! bfd_set_section_alignment (abfd, s, ptralign))
1730 if (bed->want_dynbss)
1732 /* The .dynbss section is a place to put symbols which are defined
1733 by dynamic objects, are referenced by regular objects, and are
1734 not functions. We must allocate space for them in the process
1735 image and use a R_*_COPY reloc to tell the dynamic linker to
1736 initialize them at run time. The linker script puts the .dynbss
1737 section into the .bss section of the final image. */
1738 s = bfd_make_section_with_flags (abfd, ".dynbss",
1739 SEC_ALLOC | SEC_LINKER_CREATED);
1743 /* The .rel[a].bss section holds copy relocs. This section is not
1744 normally needed. We need to create it here, though, so that the
1745 linker will map it to an output section. We can't just create it
1746 only if we need it, because we will not know whether we need it
1747 until we have seen all the input files, and the first time the
1748 main linker code calls BFD after examining all the input files
1749 (size_dynamic_sections) the input sections have already been
1750 mapped to the output sections. If the section turns out not to
1751 be needed, we can discard it later. We will never need this
1752 section when generating a shared object, since they do not use
1756 s = bfd_make_section_with_flags (abfd,
1757 (bed->default_use_rela_p
1758 ? ".rela.bss" : ".rel.bss"),
1759 flags | SEC_READONLY);
1762 || ! bfd_set_section_alignment (abfd, s, ptralign))
1770 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1773 m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
1774 struct elf_link_hash_entry *dir,
1775 struct elf_link_hash_entry *ind)
1777 struct elf_m32r_link_hash_entry * edir;
1778 struct elf_m32r_link_hash_entry * eind;
1780 edir = (struct elf_m32r_link_hash_entry *) dir;
1781 eind = (struct elf_m32r_link_hash_entry *) ind;
1783 if (eind->dyn_relocs != NULL)
1785 if (edir->dyn_relocs != NULL)
1787 struct elf_m32r_dyn_relocs **pp;
1788 struct elf_m32r_dyn_relocs *p;
1790 /* Add reloc counts against the indirect sym to the direct sym
1791 list. Merge any entries against the same section. */
1792 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
1794 struct elf_m32r_dyn_relocs *q;
1796 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1797 if (q->sec == p->sec)
1799 q->pc_count += p->pc_count;
1800 q->count += p->count;
1807 *pp = edir->dyn_relocs;
1810 edir->dyn_relocs = eind->dyn_relocs;
1811 eind->dyn_relocs = NULL;
1814 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1818 /* Adjust a symbol defined by a dynamic object and referenced by a
1819 regular object. The current definition is in some section of the
1820 dynamic object, but we're not including those sections. We have to
1821 change the definition to something the rest of the link can
1825 m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1826 struct elf_link_hash_entry *h)
1828 struct elf_m32r_link_hash_table *htab;
1829 struct elf_m32r_link_hash_entry *eh;
1830 struct elf_m32r_dyn_relocs *p;
1835 printf ("m32r_elf_adjust_dynamic_symbol()\n");
1838 dynobj = elf_hash_table (info)->dynobj;
1840 /* Make sure we know what is going on here. */
1841 BFD_ASSERT (dynobj != NULL
1843 || h->u.weakdef != NULL
1846 && !h->def_regular)));
1848 /* If this is a function, put it in the procedure linkage table. We
1849 will fill in the contents of the procedure linkage table later,
1850 when we know the address of the .got section. */
1851 if (h->type == STT_FUNC
1857 && h->root.type != bfd_link_hash_undefweak
1858 && h->root.type != bfd_link_hash_undefined)
1860 /* This case can occur if we saw a PLT reloc in an input
1861 file, but the symbol was never referred to by a dynamic
1862 object. In such a case, we don't actually need to build
1863 a procedure linkage table, and we can just do a PCREL
1865 h->plt.offset = (bfd_vma) -1;
1872 h->plt.offset = (bfd_vma) -1;
1874 /* If this is a weak symbol, and there is a real definition, the
1875 processor independent code will have arranged for us to see the
1876 real definition first, and we can just use the same value. */
1877 if (h->u.weakdef != NULL)
1879 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1880 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1881 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1882 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1886 /* This is a reference to a symbol defined by a dynamic object which
1887 is not a function. */
1889 /* If we are creating a shared library, we must presume that the
1890 only references to the symbol are via the global offset table.
1891 For such cases we need not do anything here; the relocations will
1892 be handled correctly by relocate_section. */
1896 /* If there are no references to this symbol that do not use the
1897 GOT, we don't need to generate a copy reloc. */
1898 if (!h->non_got_ref)
1901 /* If -z nocopyreloc was given, we won't generate them either. */
1902 if (info->nocopyreloc)
1908 eh = (struct elf_m32r_link_hash_entry *) h;
1909 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1911 s = p->sec->output_section;
1912 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1916 /* If we didn't find any dynamic relocs in sections which needs the
1917 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1925 /* We must allocate the symbol in our .dynbss section, which will
1926 become part of the .bss section of the executable. There will be
1927 an entry for this symbol in the .dynsym section. The dynamic
1928 object will contain position independent code, so all references
1929 from the dynamic object to this symbol will go through the global
1930 offset table. The dynamic linker will use the .dynsym entry to
1931 determine the address it must put in the global offset table, so
1932 both the dynamic object and the regular object will refer to the
1933 same memory location for the variable. */
1935 htab = m32r_elf_hash_table (info);
1940 BFD_ASSERT (s != NULL);
1942 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1943 to copy the initial value out of the dynamic object and into the
1944 runtime process image. We need to remember the offset into the
1945 .rela.bss section we are going to use. */
1946 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1950 srel = htab->srelbss;
1951 BFD_ASSERT (srel != NULL);
1952 srel->size += sizeof (Elf32_External_Rela);
1956 return _bfd_elf_adjust_dynamic_copy (h, s);
1959 /* Allocate space in .plt, .got and associated reloc sections for
1963 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1965 struct bfd_link_info *info;
1966 struct elf_m32r_link_hash_table *htab;
1967 struct elf_m32r_link_hash_entry *eh;
1968 struct elf_m32r_dyn_relocs *p;
1970 if (h->root.type == bfd_link_hash_indirect)
1973 info = (struct bfd_link_info *) inf;
1974 htab = m32r_elf_hash_table (info);
1978 eh = (struct elf_m32r_link_hash_entry *) h;
1980 if (htab->root.dynamic_sections_created
1981 && h->plt.refcount > 0)
1983 /* Make sure this symbol is output as a dynamic symbol.
1984 Undefined weak syms won't yet be marked as dynamic. */
1985 if (h->dynindx == -1
1986 && !h->forced_local)
1988 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1992 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
1994 asection *s = htab->splt;
1996 /* If this is the first .plt entry, make room for the special
1999 s->size += PLT_ENTRY_SIZE;
2001 h->plt.offset = s->size;
2003 /* If this symbol is not defined in a regular file, and we are
2004 not generating a shared library, then set the symbol to this
2005 location in the .plt. This is required to make function
2006 pointers compare as equal between the normal executable and
2007 the shared library. */
2011 h->root.u.def.section = s;
2012 h->root.u.def.value = h->plt.offset;
2015 /* Make room for this entry. */
2016 s->size += PLT_ENTRY_SIZE;
2018 /* We also need to make an entry in the .got.plt section, which
2019 will be placed in the .got section by the linker script. */
2020 htab->sgotplt->size += 4;
2022 /* We also need to make an entry in the .rel.plt section. */
2023 htab->srelplt->size += sizeof (Elf32_External_Rela);
2027 h->plt.offset = (bfd_vma) -1;
2033 h->plt.offset = (bfd_vma) -1;
2037 if (h->got.refcount > 0)
2042 /* Make sure this symbol is output as a dynamic symbol.
2043 Undefined weak syms won't yet be marked as dynamic. */
2044 if (h->dynindx == -1
2045 && !h->forced_local)
2047 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2053 h->got.offset = s->size;
2055 dyn = htab->root.dynamic_sections_created;
2056 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2057 htab->srelgot->size += sizeof (Elf32_External_Rela);
2060 h->got.offset = (bfd_vma) -1;
2062 if (eh->dyn_relocs == NULL)
2065 /* In the shared -Bsymbolic case, discard space allocated for
2066 dynamic pc-relative relocs against symbols which turn out to be
2067 defined in regular objects. For the normal shared case, discard
2068 space for pc-relative relocs that have become local due to symbol
2069 visibility changes. */
2077 struct elf_m32r_dyn_relocs **pp;
2079 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2081 p->count -= p->pc_count;
2090 /* Also discard relocs on undefined weak syms with non-default
2092 if (eh->dyn_relocs != NULL
2093 && h->root.type == bfd_link_hash_undefweak)
2095 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2096 eh->dyn_relocs = NULL;
2098 /* Make sure undefined weak symbols are output as a dynamic
2100 else if (h->dynindx == -1
2101 && !h->forced_local)
2103 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2110 /* For the non-shared case, discard space for relocs against
2111 symbols which turn out to need copy relocs or are not
2117 || (htab->root.dynamic_sections_created
2118 && (h->root.type == bfd_link_hash_undefweak
2119 || h->root.type == bfd_link_hash_undefined))))
2121 /* Make sure this symbol is output as a dynamic symbol.
2122 Undefined weak syms won't yet be marked as dynamic. */
2123 if (h->dynindx == -1
2124 && !h->forced_local)
2126 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2130 /* If that succeeded, we know we'll be keeping all the
2132 if (h->dynindx != -1)
2136 eh->dyn_relocs = NULL;
2141 /* Finally, allocate space. */
2142 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2144 asection *sreloc = elf_section_data (p->sec)->sreloc;
2145 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2151 /* Find any dynamic relocs that apply to read-only sections. */
2154 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2156 struct elf_m32r_link_hash_entry *eh;
2157 struct elf_m32r_dyn_relocs *p;
2159 eh = (struct elf_m32r_link_hash_entry *) h;
2160 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2162 asection *s = p->sec->output_section;
2164 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2166 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2168 info->flags |= DF_TEXTREL;
2170 /* Not an error, just cut short the traversal. */
2177 /* Set the sizes of the dynamic sections. */
2180 m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2181 struct bfd_link_info *info)
2183 struct elf_m32r_link_hash_table *htab;
2190 printf ("m32r_elf_size_dynamic_sections()\n");
2193 htab = m32r_elf_hash_table (info);
2197 dynobj = htab->root.dynobj;
2198 BFD_ASSERT (dynobj != NULL);
2200 if (htab->root.dynamic_sections_created)
2202 /* Set the contents of the .interp section to the interpreter. */
2203 if (info->executable)
2205 s = bfd_get_section_by_name (dynobj, ".interp");
2206 BFD_ASSERT (s != NULL);
2207 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2208 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2212 /* Set up .got offsets for local syms, and space for local dynamic
2214 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2216 bfd_signed_vma *local_got;
2217 bfd_signed_vma *end_local_got;
2218 bfd_size_type locsymcount;
2219 Elf_Internal_Shdr *symtab_hdr;
2222 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2225 for (s = ibfd->sections; s != NULL; s = s->next)
2227 struct elf_m32r_dyn_relocs *p;
2229 for (p = ((struct elf_m32r_dyn_relocs *)
2230 elf_section_data (s)->local_dynrel);
2234 if (! bfd_is_abs_section (p->sec)
2235 && bfd_is_abs_section (p->sec->output_section))
2237 /* Input section has been discarded, either because
2238 it is a copy of a linkonce section or due to
2239 linker script /DISCARD/, so we'll be discarding
2242 else if (p->count != 0)
2244 srel = elf_section_data (p->sec)->sreloc;
2245 srel->size += p->count * sizeof (Elf32_External_Rela);
2246 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2247 info->flags |= DF_TEXTREL;
2252 local_got = elf_local_got_refcounts (ibfd);
2256 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2257 locsymcount = symtab_hdr->sh_info;
2258 end_local_got = local_got + locsymcount;
2260 srel = htab->srelgot;
2261 for (; local_got < end_local_got; ++local_got)
2265 *local_got = s->size;
2268 srel->size += sizeof (Elf32_External_Rela);
2271 *local_got = (bfd_vma) -1;
2275 /* Allocate global sym .plt and .got entries, and space for global
2276 sym dynamic relocs. */
2277 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2279 /* We now have determined the sizes of the various dynamic sections.
2280 Allocate memory for them. */
2282 for (s = dynobj->sections; s != NULL; s = s->next)
2284 if ((s->flags & SEC_LINKER_CREATED) == 0)
2289 || s == htab->sgotplt
2290 || s == htab->sdynbss)
2292 /* Strip this section if we don't need it; see the
2295 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2297 if (s->size != 0 && s != htab->srelplt)
2300 /* We use the reloc_count field as a counter if we need
2301 to copy relocs into the output file. */
2305 /* It's not one of our sections, so don't allocate space. */
2310 /* If we don't need this section, strip it from the
2311 output file. This is mostly to handle .rela.bss and
2312 .rela.plt. We must create both sections in
2313 create_dynamic_sections, because they must be created
2314 before the linker maps input sections to output
2315 sections. The linker does that before
2316 adjust_dynamic_symbol is called, and it is that
2317 function which decides whether anything needs to go
2318 into these sections. */
2319 s->flags |= SEC_EXCLUDE;
2323 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2326 /* Allocate memory for the section contents. We use bfd_zalloc
2327 here in case unused entries are not reclaimed before the
2328 section's contents are written out. This should not happen,
2329 but this way if it does, we get a R_M32R_NONE reloc instead
2331 s->contents = bfd_zalloc (dynobj, s->size);
2332 if (s->contents == NULL)
2336 if (htab->root.dynamic_sections_created)
2338 /* Add some entries to the .dynamic section. We fill in the
2339 values later, in m32r_elf_finish_dynamic_sections, but we
2340 must add the entries now so that we get the correct size for
2341 the .dynamic section. The DT_DEBUG entry is filled in by the
2342 dynamic linker and used by the debugger. */
2343 #define add_dynamic_entry(TAG, VAL) \
2344 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2346 if (info->executable)
2348 if (! add_dynamic_entry (DT_DEBUG, 0))
2352 if (htab->splt->size != 0)
2354 if (! add_dynamic_entry (DT_PLTGOT, 0)
2355 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2356 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2357 || ! add_dynamic_entry (DT_JMPREL, 0))
2363 if (! add_dynamic_entry (DT_RELA, 0)
2364 || ! add_dynamic_entry (DT_RELASZ, 0)
2365 || ! add_dynamic_entry (DT_RELAENT,
2366 sizeof (Elf32_External_Rela)))
2369 /* If any dynamic relocs apply to a read-only section,
2370 then we need a DT_TEXTREL entry. */
2371 if ((info->flags & DF_TEXTREL) == 0)
2372 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2375 if ((info->flags & DF_TEXTREL) != 0)
2377 if (! add_dynamic_entry (DT_TEXTREL, 0))
2382 #undef add_dynamic_entry
2387 /* Relocate an M32R/D ELF section.
2388 There is some attempt to make this function usable for many architectures,
2389 both for RELA and REL type relocs, if only to serve as a learning tool.
2391 The RELOCATE_SECTION function is called by the new ELF backend linker
2392 to handle the relocations for a section.
2394 The relocs are always passed as Rela structures; if the section
2395 actually uses Rel structures, the r_addend field will always be
2398 This function is responsible for adjust the section contents as
2399 necessary, and (if using Rela relocs and generating a
2400 relocatable output file) adjusting the reloc addend as
2403 This function does not have to worry about setting the reloc
2404 address or the reloc symbol index.
2406 LOCAL_SYMS is a pointer to the swapped in local symbols.
2408 LOCAL_SECTIONS is an array giving the section in the input file
2409 corresponding to the st_shndx field of each local symbol.
2411 The global hash table entry for the global symbols can be found
2412 via elf_sym_hashes (input_bfd).
2414 When generating relocatable output, this function must handle
2415 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2416 going to be the section symbol corresponding to the output
2417 section, which means that the addend must be adjusted
2421 m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2422 struct bfd_link_info *info,
2424 asection *input_section,
2426 Elf_Internal_Rela *relocs,
2427 Elf_Internal_Sym *local_syms,
2428 asection **local_sections)
2430 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2431 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2432 Elf_Internal_Rela *rel, *relend;
2433 /* Assume success. */
2434 bfd_boolean ret = TRUE;
2435 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2437 bfd_vma *local_got_offsets;
2438 asection *sgot, *splt, *sreloc;
2439 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2444 dynobj = htab->root.dynobj;
2445 local_got_offsets = elf_local_got_offsets (input_bfd);
2452 relend = relocs + input_section->reloc_count;
2453 for (; rel < relend; rel++)
2456 reloc_howto_type *howto;
2457 unsigned long r_symndx;
2458 struct elf_link_hash_entry *h;
2459 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2460 ensure it's zero (we use REL relocs, not RELA). Therefore this
2461 should be assigning zero to `addend', but for clarity we use
2463 bfd_vma addend = rel->r_addend;
2464 bfd_vma offset = rel->r_offset;
2466 Elf_Internal_Sym *sym;
2468 const char *sym_name;
2469 bfd_reloc_status_type r;
2470 const char *errmsg = NULL;
2471 bfd_boolean use_rel = FALSE;
2474 r_type = ELF32_R_TYPE (rel->r_info);
2475 if (r_type < 0 || r_type >= (int) R_M32R_max)
2477 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2480 bfd_set_error (bfd_error_bad_value);
2485 if ( r_type == R_M32R_GNU_VTENTRY
2486 || r_type == R_M32R_GNU_VTINHERIT
2487 || r_type == R_M32R_NONE
2488 || r_type == R_M32R_RELA_GNU_VTENTRY
2489 || r_type == R_M32R_RELA_GNU_VTINHERIT)
2492 if (r_type <= R_M32R_GNU_VTENTRY)
2495 howto = m32r_elf_howto_table + r_type;
2496 r_symndx = ELF32_R_SYM (rel->r_info);
2502 if (r_symndx < symtab_hdr->sh_info)
2505 sym = local_syms + r_symndx;
2506 sec = local_sections[r_symndx];
2507 sym_name = "<local symbol>";
2511 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2512 addend = rel->r_addend;
2516 relocation = (sec->output_section->vma
2517 + sec->output_offset
2523 /* External symbol. */
2526 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2527 while (h->root.type == bfd_link_hash_indirect
2528 || h->root.type == bfd_link_hash_warning)
2529 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2530 sym_name = h->root.root.string;
2532 if (h->root.type == bfd_link_hash_defined
2533 || h->root.type == bfd_link_hash_defweak)
2536 sec = h->root.u.def.section;
2538 dyn = htab->root.dynamic_sections_created;
2539 sec = h->root.u.def.section;
2540 if (r_type == R_M32R_GOTPC24
2541 || (r_type == R_M32R_GOTPC_HI_ULO
2542 || r_type == R_M32R_GOTPC_HI_SLO
2543 || r_type == R_M32R_GOTPC_LO)
2544 || (r_type == R_M32R_26_PLTREL
2545 && h->plt.offset != (bfd_vma) -1)
2546 || ((r_type == R_M32R_GOT24
2547 || r_type == R_M32R_GOT16_HI_ULO
2548 || r_type == R_M32R_GOT16_HI_SLO
2549 || r_type == R_M32R_GOT16_LO)
2550 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2553 || (! info->symbolic && h->dynindx != -1)
2554 || !h->def_regular))
2556 && ((! info->symbolic && h->dynindx != -1)
2558 && (((r_type == R_M32R_16_RELA
2559 || r_type == R_M32R_32_RELA
2560 || r_type == R_M32R_24_RELA
2561 || r_type == R_M32R_HI16_ULO_RELA
2562 || r_type == R_M32R_HI16_SLO_RELA
2563 || r_type == R_M32R_LO16_RELA)
2564 && !h->forced_local)
2565 || r_type == R_M32R_REL32
2566 || r_type == R_M32R_10_PCREL_RELA
2567 || r_type == R_M32R_18_PCREL_RELA
2568 || r_type == R_M32R_26_PCREL_RELA)
2569 && ((input_section->flags & SEC_ALLOC) != 0
2570 /* DWARF will emit R_M32R_16(24,32) relocations
2571 in its sections against symbols defined
2572 externally in shared libraries. We can't do
2573 anything with them here. */
2574 || ((input_section->flags & SEC_DEBUGGING) != 0
2575 && h->def_dynamic))))
2577 /* In these cases, we don't need the relocation
2578 value. We check specially because in some
2579 obscure cases sec->output_section will be NULL. */
2581 else if (sec->output_section != NULL)
2582 relocation = (h->root.u.def.value
2583 + sec->output_section->vma
2584 + sec->output_offset);
2585 else if (!info->relocatable
2586 && (_bfd_elf_section_offset (output_bfd, info,
2591 (*_bfd_error_handler)
2592 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2595 (long) rel->r_offset,
2597 h->root.root.string);
2600 else if (h->root.type == bfd_link_hash_undefweak)
2602 else if (info->unresolved_syms_in_objects == RM_IGNORE
2603 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2605 else if (!info->relocatable)
2607 if (! ((*info->callbacks->undefined_symbol)
2608 (info, h->root.root.string, input_bfd,
2609 input_section, offset,
2610 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2611 || ELF_ST_VISIBILITY (h->other)))))
2616 if (sec != NULL && discarded_section (sec))
2617 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2618 rel, 1, relend, howto, 0, contents);
2620 if (info->relocatable && !use_rel)
2622 /* This is a relocatable link. We don't have to change
2623 anything, unless the reloc is against a section symbol,
2624 in which case we have to adjust according to where the
2625 section symbol winds up in the output section. */
2626 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2627 rel->r_addend += sec->output_offset;
2631 if (info->relocatable && use_rel)
2633 /* This is a relocatable link. We don't have to change
2634 anything, unless the reloc is against a section symbol,
2635 in which case we have to adjust according to where the
2636 section symbol winds up in the output section. */
2637 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2640 addend += sec->output_offset;
2642 /* If partial_inplace, we need to store any additional addend
2643 back in the section. */
2644 if (! howto->partial_inplace)
2646 /* ??? Here is a nice place to call a special_function
2648 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2649 r = _bfd_relocate_contents (howto, input_bfd,
2650 addend, contents + offset);
2653 Elf_Internal_Rela *lorel;
2655 /* We allow an arbitrary number of HI16 relocs before the
2656 LO16 reloc. This permits gcc to emit the HI and LO relocs
2658 for (lorel = rel + 1;
2660 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2661 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2665 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2667 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2672 r = _bfd_relocate_contents (howto, input_bfd,
2673 addend, contents + offset);
2678 /* Sanity check the address. */
2679 if (offset > high_address)
2681 r = bfd_reloc_outofrange;
2685 switch ((int) r_type)
2688 /* Relocation is relative to the start of the global offset
2689 table (for ld24 rx, #uimm24). eg access at label+addend
2691 ld24 rx. #label@GOTOFF + addend
2694 BFD_ASSERT (sgot != NULL);
2696 relocation = -(relocation - sgot->output_section->vma);
2697 rel->r_addend = -rel->r_addend;
2700 case R_M32R_GOTOFF_HI_ULO:
2701 case R_M32R_GOTOFF_HI_SLO:
2702 case R_M32R_GOTOFF_LO:
2703 BFD_ASSERT (sgot != NULL);
2705 relocation -= sgot->output_section->vma;
2707 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2708 && ((relocation + rel->r_addend) & 0x8000))
2709 rel->r_addend += 0x10000;
2712 case R_M32R_GOTPC24:
2713 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2714 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2716 relocation = sgot->output_section->vma;
2719 case R_M32R_GOTPC_HI_ULO:
2720 case R_M32R_GOTPC_HI_SLO:
2721 case R_M32R_GOTPC_LO:
2723 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2725 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2726 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2729 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2730 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2732 relocation = sgot->output_section->vma;
2733 relocation -= (input_section->output_section->vma
2734 + input_section->output_offset
2736 if ((r_type == R_M32R_GOTPC_HI_SLO)
2737 && ((relocation + rel->r_addend) & 0x8000))
2738 rel->r_addend += 0x10000;
2742 case R_M32R_GOT16_HI_ULO:
2743 case R_M32R_GOT16_HI_SLO:
2744 case R_M32R_GOT16_LO:
2747 /* Relocation is to the entry for this symbol in the global
2749 BFD_ASSERT (sgot != NULL);
2756 off = h->got.offset;
2757 BFD_ASSERT (off != (bfd_vma) -1);
2759 dyn = htab->root.dynamic_sections_created;
2760 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2767 /* This is actually a static link, or it is a
2768 -Bsymbolic link and the symbol is defined
2769 locally, or the symbol was forced to be local
2770 because of a version file. We must initialize
2771 this entry in the global offset table. Since the
2772 offset must always be a multiple of 4, we use the
2773 least significant bit to record whether we have
2774 initialized it already.
2776 When doing a dynamic link, we create a .rela.got
2777 relocation entry to initialize the value. This
2778 is done in the finish_dynamic_symbol routine. */
2783 bfd_put_32 (output_bfd, relocation,
2784 sgot->contents + off);
2789 relocation = sgot->output_offset + off;
2796 BFD_ASSERT (local_got_offsets != NULL
2797 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2799 off = local_got_offsets[r_symndx];
2801 /* The offset must always be a multiple of 4. We use
2802 the least significant bit to record whether we have
2803 already processed this entry. */
2808 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2813 Elf_Internal_Rela outrel;
2815 /* We need to generate a R_M32R_RELATIVE reloc
2816 for the dynamic linker. */
2817 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2818 BFD_ASSERT (srelgot != NULL);
2820 outrel.r_offset = (sgot->output_section->vma
2821 + sgot->output_offset
2823 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2824 outrel.r_addend = relocation;
2825 loc = srelgot->contents;
2826 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2827 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2828 ++srelgot->reloc_count;
2831 local_got_offsets[r_symndx] |= 1;
2834 relocation = sgot->output_offset + off;
2836 if ((r_type == R_M32R_GOT16_HI_SLO)
2837 && ((relocation + rel->r_addend) & 0x8000))
2838 rel->r_addend += 0x10000;
2842 case R_M32R_26_PLTREL:
2843 /* Relocation is to the entry for this symbol in the
2844 procedure linkage table. */
2846 /* The native assembler will generate a 26_PLTREL reloc
2847 for a local symbol if you assemble a call from one
2848 section to another when using -K pic. */
2852 if (h->forced_local)
2855 if (h->plt.offset == (bfd_vma) -1)
2856 /* We didn't make a PLT entry for this symbol. This
2857 happens when statically linking PIC code, or when
2858 using -Bsymbolic. */
2861 relocation = (splt->output_section->vma
2862 + splt->output_offset
2866 case R_M32R_HI16_SLO_RELA:
2867 if ((relocation + rel->r_addend) & 0x8000)
2868 rel->r_addend += 0x10000;
2871 case R_M32R_16_RELA:
2872 case R_M32R_24_RELA:
2873 case R_M32R_32_RELA:
2875 case R_M32R_10_PCREL_RELA:
2876 case R_M32R_18_PCREL_RELA:
2877 case R_M32R_26_PCREL_RELA:
2878 case R_M32R_HI16_ULO_RELA:
2879 case R_M32R_LO16_RELA:
2881 && r_symndx != STN_UNDEF
2882 && (input_section->flags & SEC_ALLOC) != 0
2883 && (( r_type != R_M32R_10_PCREL_RELA
2884 && r_type != R_M32R_18_PCREL_RELA
2885 && r_type != R_M32R_26_PCREL_RELA
2886 && r_type != R_M32R_REL32)
2889 && (! info->symbolic
2890 || !h->def_regular))))
2892 Elf_Internal_Rela outrel;
2893 bfd_boolean skip, relocate;
2896 /* When generating a shared object, these relocations
2897 are copied into the output file to be resolved at run
2901 sreloc = _bfd_elf_get_dynamic_reloc_section
2902 (input_bfd, input_section, /*rela?*/ TRUE);
2910 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2914 if (outrel.r_offset == (bfd_vma) -1)
2916 else if (outrel.r_offset == (bfd_vma) -2)
2917 skip = relocate = TRUE;
2918 outrel.r_offset += (input_section->output_section->vma
2919 + input_section->output_offset);
2922 memset (&outrel, 0, sizeof outrel);
2923 else if ( r_type == R_M32R_10_PCREL_RELA
2924 || r_type == R_M32R_18_PCREL_RELA
2925 || r_type == R_M32R_26_PCREL_RELA
2926 || r_type == R_M32R_REL32)
2928 BFD_ASSERT (h != NULL && h->dynindx != -1);
2929 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2930 outrel.r_addend = rel->r_addend;
2934 /* h->dynindx may be -1 if this symbol was marked to
2937 || ((info->symbolic || h->dynindx == -1)
2941 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2942 outrel.r_addend = relocation + rel->r_addend;
2946 BFD_ASSERT (h->dynindx != -1);
2947 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2948 outrel.r_addend = relocation + rel->r_addend;
2952 loc = sreloc->contents;
2953 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2954 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2955 ++sreloc->reloc_count;
2957 /* If this reloc is against an external symbol, we do
2958 not want to fiddle with the addend. Otherwise, we
2959 need to include the symbol value so that it becomes
2960 an addend for the dynamic reloc. */
2965 else if (r_type != R_M32R_10_PCREL_RELA)
2969 case (int) R_M32R_10_PCREL :
2970 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2972 sec, relocation, addend);
2975 case (int) R_M32R_HI16_SLO :
2976 case (int) R_M32R_HI16_ULO :
2978 Elf_Internal_Rela *lorel;
2980 /* We allow an arbitrary number of HI16 relocs before the
2981 LO16 reloc. This permits gcc to emit the HI and LO relocs
2983 for (lorel = rel + 1;
2985 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2986 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2990 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2992 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2993 contents, relocation + addend);
2997 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2999 relocation, addend);
3004 case (int) R_M32R_SDA16_RELA:
3005 case (int) R_M32R_SDA16 :
3009 BFD_ASSERT (sec != NULL);
3010 name = bfd_get_section_name (abfd, sec);
3012 if ( strcmp (name, ".sdata") == 0
3013 || strcmp (name, ".sbss") == 0
3014 || strcmp (name, ".scommon") == 0)
3017 bfd *out_bfd = sec->output_section->owner;
3019 r = m32r_elf_final_sda_base (out_bfd, info,
3022 if (r != bfd_reloc_ok)
3028 /* At this point `relocation' contains the object's
3030 relocation -= sda_base;
3031 /* Now it contains the offset from _SDA_BASE_. */
3035 (*_bfd_error_handler)
3036 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3040 m32r_elf_howto_table[(int) r_type].name);
3041 /*bfd_set_error (bfd_error_bad_value); ??? why? */
3048 default : /* OLD_M32R_RELOC */
3050 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3052 relocation, addend);
3056 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3057 contents, rel->r_offset,
3058 relocation, rel->r_addend);
3064 if (r != bfd_reloc_ok)
3066 /* FIXME: This should be generic enough to go in a utility. */
3070 name = h->root.root.string;
3073 name = (bfd_elf_string_from_elf_section
3074 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3075 if (name == NULL || *name == '\0')
3076 name = bfd_section_name (input_bfd, sec);
3084 case bfd_reloc_overflow:
3085 if (! ((*info->callbacks->reloc_overflow)
3086 (info, (h ? &h->root : NULL), name, howto->name,
3087 (bfd_vma) 0, input_bfd, input_section, offset)))
3091 case bfd_reloc_undefined:
3092 if (! ((*info->callbacks->undefined_symbol)
3093 (info, name, input_bfd, input_section,
3098 case bfd_reloc_outofrange:
3099 errmsg = _("internal error: out of range error");
3102 case bfd_reloc_notsupported:
3103 errmsg = _("internal error: unsupported relocation error");
3106 case bfd_reloc_dangerous:
3107 errmsg = _("internal error: dangerous error");
3111 errmsg = _("internal error: unknown error");
3115 if (!((*info->callbacks->warning)
3116 (info, errmsg, name, input_bfd, input_section,
3127 /* Finish up dynamic symbol handling. We set the contents of various
3128 dynamic sections here. */
3131 m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3132 struct bfd_link_info *info,
3133 struct elf_link_hash_entry *h,
3134 Elf_Internal_Sym *sym)
3136 struct elf_m32r_link_hash_table *htab;
3140 printf ("m32r_elf_finish_dynamic_symbol()\n");
3143 htab = m32r_elf_hash_table (info);
3147 if (h->plt.offset != (bfd_vma) -1)
3155 Elf_Internal_Rela rela;
3157 /* This symbol has an entry in the procedure linkage table. Set
3160 BFD_ASSERT (h->dynindx != -1);
3163 sgot = htab->sgotplt;
3164 srela = htab->srelplt;
3165 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3167 /* Get the index in the procedure linkage table which
3168 corresponds to this symbol. This is the index of this symbol
3169 in all the symbols for which we are making plt entries. The
3170 first entry in the procedure linkage table is reserved. */
3171 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3173 /* Get the offset into the .got table of the entry that
3174 corresponds to this function. Each .got entry is 4 bytes.
3175 The first three are reserved. */
3176 got_offset = (plt_index + 3) * 4;
3178 /* Fill in the entry in the procedure linkage table. */
3181 bfd_put_32 (output_bfd,
3183 + (((sgot->output_section->vma
3184 + sgot->output_offset
3185 + got_offset) >> 16) & 0xffff)),
3186 splt->contents + h->plt.offset);
3187 bfd_put_32 (output_bfd,
3189 + ((sgot->output_section->vma
3190 + sgot->output_offset
3191 + got_offset) & 0xffff)),
3192 splt->contents + h->plt.offset + 4);
3193 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3194 splt->contents + h->plt.offset + 8);
3195 bfd_put_32 (output_bfd,
3197 + plt_index * sizeof (Elf32_External_Rela)),
3198 splt->contents + h->plt.offset + 12);
3199 bfd_put_32 (output_bfd,
3201 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3202 splt->contents + h->plt.offset + 16);
3206 bfd_put_32 (output_bfd,
3207 PLT_ENTRY_WORD0 + got_offset,
3208 splt->contents + h->plt.offset);
3209 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3210 splt->contents + h->plt.offset + 4);
3211 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3212 splt->contents + h->plt.offset + 8);
3213 bfd_put_32 (output_bfd,
3215 + plt_index * sizeof (Elf32_External_Rela)),
3216 splt->contents + h->plt.offset + 12);
3217 bfd_put_32 (output_bfd,
3219 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3220 splt->contents + h->plt.offset + 16);
3223 /* Fill in the entry in the global offset table. */
3224 bfd_put_32 (output_bfd,
3225 (splt->output_section->vma
3226 + splt->output_offset
3228 + 12), /* same offset */
3229 sgot->contents + got_offset);
3231 /* Fill in the entry in the .rela.plt section. */
3232 rela.r_offset = (sgot->output_section->vma
3233 + sgot->output_offset
3235 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3237 loc = srela->contents;
3238 loc += plt_index * sizeof (Elf32_External_Rela);
3239 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3241 if (!h->def_regular)
3243 /* Mark the symbol as undefined, rather than as defined in
3244 the .plt section. Leave the value alone. */
3245 sym->st_shndx = SHN_UNDEF;
3249 if (h->got.offset != (bfd_vma) -1)
3253 Elf_Internal_Rela rela;
3255 /* This symbol has an entry in the global offset table. Set it
3259 srela = htab->srelgot;
3260 BFD_ASSERT (sgot != NULL && srela != NULL);
3262 rela.r_offset = (sgot->output_section->vma
3263 + sgot->output_offset
3264 + (h->got.offset &~ 1));
3266 /* If this is a -Bsymbolic link, and the symbol is defined
3267 locally, we just want to emit a RELATIVE reloc. Likewise if
3268 the symbol was forced to be local because of a version file.
3269 The entry in the global offset table will already have been
3270 initialized in the relocate_section function. */
3277 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3278 rela.r_addend = (h->root.u.def.value
3279 + h->root.u.def.section->output_section->vma
3280 + h->root.u.def.section->output_offset);
3284 BFD_ASSERT ((h->got.offset & 1) == 0);
3285 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3286 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3290 loc = srela->contents;
3291 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3292 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3293 ++srela->reloc_count;
3299 Elf_Internal_Rela rela;
3301 /* This symbols needs a copy reloc. Set it up. */
3303 BFD_ASSERT (h->dynindx != -1
3304 && (h->root.type == bfd_link_hash_defined
3305 || h->root.type == bfd_link_hash_defweak));
3307 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3309 BFD_ASSERT (s != NULL);
3311 rela.r_offset = (h->root.u.def.value
3312 + h->root.u.def.section->output_section->vma
3313 + h->root.u.def.section->output_offset);
3314 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3317 loc += s->reloc_count * sizeof (Elf32_External_Rela);
3318 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3322 /* Mark some specially defined symbols as absolute. */
3323 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3324 || h == htab->root.hgot)
3325 sym->st_shndx = SHN_ABS;
3331 /* Finish up the dynamic sections. */
3334 m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3335 struct bfd_link_info *info)
3337 struct elf_m32r_link_hash_table *htab;
3343 printf ("m32r_elf_finish_dynamic_sections()\n");
3346 htab = m32r_elf_hash_table (info);
3350 dynobj = htab->root.dynobj;
3352 sgot = htab->sgotplt;
3353 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3355 if (htab->root.dynamic_sections_created)
3358 Elf32_External_Dyn *dyncon, *dynconend;
3360 BFD_ASSERT (sgot != NULL && sdyn != NULL);
3362 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3363 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3365 for (; dyncon < dynconend; dyncon++)
3367 Elf_Internal_Dyn dyn;
3370 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3378 s = htab->sgot->output_section;
3381 s = htab->srelplt->output_section;
3383 BFD_ASSERT (s != NULL);
3384 dyn.d_un.d_ptr = s->vma;
3385 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3389 s = htab->srelplt->output_section;
3390 BFD_ASSERT (s != NULL);
3391 dyn.d_un.d_val = s->size;
3392 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3396 /* My reading of the SVR4 ABI indicates that the
3397 procedure linkage table relocs (DT_JMPREL) should be
3398 included in the overall relocs (DT_RELA). This is
3399 what Solaris does. However, UnixWare can not handle
3400 that case. Therefore, we override the DT_RELASZ entry
3401 here to make it not include the JMPREL relocs. Since
3402 the linker script arranges for .rela.plt to follow all
3403 other relocation sections, we don't have to worry
3404 about changing the DT_RELA entry. */
3405 if (htab->srelplt != NULL)
3407 s = htab->srelplt->output_section;
3408 dyn.d_un.d_val -= s->size;
3410 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3415 /* Fill in the first entry in the procedure linkage table. */
3417 if (splt && splt->size > 0)
3421 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3422 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3423 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3424 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3425 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3430 /* addr = .got + 4 */
3431 addr = sgot->output_section->vma + sgot->output_offset + 4;
3432 bfd_put_32 (output_bfd,
3433 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3435 bfd_put_32 (output_bfd,
3436 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3437 splt->contents + 4);
3438 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3439 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3440 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3443 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3448 /* Fill in the first three entries in the global offset table. */
3449 if (sgot && sgot->size > 0)
3452 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3454 bfd_put_32 (output_bfd,
3455 sdyn->output_section->vma + sdyn->output_offset,
3457 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3458 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3460 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3467 /* Set the right machine number. */
3470 m32r_elf_object_p (bfd *abfd)
3472 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3475 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
3476 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3477 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3482 /* Store the machine number in the flags field. */
3485 m32r_elf_final_write_processing (bfd *abfd,
3486 bfd_boolean linker ATTRIBUTE_UNUSED)
3490 switch (bfd_get_mach (abfd))
3493 case bfd_mach_m32r: val = E_M32R_ARCH; break;
3494 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3495 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3498 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3499 elf_elfheader (abfd)->e_flags |= val;
3502 /* Function to keep M32R specific file flags. */
3505 m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3507 BFD_ASSERT (!elf_flags_init (abfd)
3508 || elf_elfheader (abfd)->e_flags == flags);
3510 elf_elfheader (abfd)->e_flags = flags;
3511 elf_flags_init (abfd) = TRUE;
3515 /* Merge backend specific data from an object file to the output
3516 object file when linking. */
3519 m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3524 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3525 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3528 in_flags = elf_elfheader (ibfd)->e_flags;
3529 out_flags = elf_elfheader (obfd)->e_flags;
3531 if (! elf_flags_init (obfd))
3533 /* If the input is the default architecture then do not
3534 bother setting the flags for the output architecture,
3535 instead allow future merges to do this. If no future
3536 merges ever set these flags then they will retain their
3537 unitialised values, which surprise surprise, correspond
3538 to the default values. */
3539 if (bfd_get_arch_info (ibfd)->the_default)
3542 elf_flags_init (obfd) = TRUE;
3543 elf_elfheader (obfd)->e_flags = in_flags;
3545 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3546 && bfd_get_arch_info (obfd)->the_default)
3547 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3548 bfd_get_mach (ibfd));
3553 /* Check flag compatibility. */
3554 if (in_flags == out_flags)
3557 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3559 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3560 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3561 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
3563 (*_bfd_error_handler)
3564 (_("%B: Instruction set mismatch with previous modules"), ibfd);
3566 bfd_set_error (bfd_error_bad_value);
3574 /* Display the flags field. */
3577 m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3579 FILE * file = (FILE *) ptr;
3581 BFD_ASSERT (abfd != NULL && ptr != NULL);
3583 _bfd_elf_print_private_bfd_data (abfd, ptr);
3585 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3587 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3590 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
3591 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3592 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3601 m32r_elf_gc_mark_hook (asection *sec,
3602 struct bfd_link_info *info,
3603 Elf_Internal_Rela *rel,
3604 struct elf_link_hash_entry *h,
3605 Elf_Internal_Sym *sym)
3608 switch (ELF32_R_TYPE (rel->r_info))
3610 case R_M32R_GNU_VTINHERIT:
3611 case R_M32R_GNU_VTENTRY:
3612 case R_M32R_RELA_GNU_VTINHERIT:
3613 case R_M32R_RELA_GNU_VTENTRY:
3617 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3621 m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3622 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3623 asection *sec ATTRIBUTE_UNUSED,
3624 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3626 /* Update the got entry reference counts for the section being removed. */
3627 Elf_Internal_Shdr *symtab_hdr;
3628 struct elf_link_hash_entry **sym_hashes;
3629 bfd_signed_vma *local_got_refcounts;
3630 const Elf_Internal_Rela *rel, *relend;
3632 if (info->relocatable)
3635 elf_section_data (sec)->local_dynrel = NULL;
3637 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3638 sym_hashes = elf_sym_hashes (abfd);
3639 local_got_refcounts = elf_local_got_refcounts (abfd);
3641 relend = relocs + sec->reloc_count;
3642 for (rel = relocs; rel < relend; rel++)
3644 unsigned long r_symndx;
3645 struct elf_link_hash_entry *h = NULL;
3647 r_symndx = ELF32_R_SYM (rel->r_info);
3648 if (r_symndx >= symtab_hdr->sh_info)
3650 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3651 while (h->root.type == bfd_link_hash_indirect
3652 || h->root.type == bfd_link_hash_warning)
3653 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3656 switch (ELF32_R_TYPE (rel->r_info))
3658 case R_M32R_GOT16_HI_ULO:
3659 case R_M32R_GOT16_HI_SLO:
3660 case R_M32R_GOT16_LO:
3662 case R_M32R_GOTOFF_HI_ULO:
3663 case R_M32R_GOTOFF_HI_SLO:
3664 case R_M32R_GOTOFF_LO:
3666 case R_M32R_GOTPC_HI_ULO:
3667 case R_M32R_GOTPC_HI_SLO:
3668 case R_M32R_GOTPC_LO:
3669 case R_M32R_GOTPC24:
3672 if (h->got.refcount > 0)
3677 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3678 local_got_refcounts[r_symndx]--;
3682 case R_M32R_16_RELA:
3683 case R_M32R_24_RELA:
3684 case R_M32R_32_RELA:
3686 case R_M32R_HI16_ULO_RELA:
3687 case R_M32R_HI16_SLO_RELA:
3688 case R_M32R_LO16_RELA:
3689 case R_M32R_SDA16_RELA:
3690 case R_M32R_10_PCREL_RELA:
3691 case R_M32R_18_PCREL_RELA:
3692 case R_M32R_26_PCREL_RELA:
3695 struct elf_m32r_link_hash_entry *eh;
3696 struct elf_m32r_dyn_relocs **pp;
3697 struct elf_m32r_dyn_relocs *p;
3699 if (!info->shared && h->plt.refcount > 0)
3700 h->plt.refcount -= 1;
3702 eh = (struct elf_m32r_link_hash_entry *) h;
3704 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3707 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3708 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3709 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3710 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3720 case R_M32R_26_PLTREL:
3723 if (h->plt.refcount > 0)
3736 /* Look through the relocs for a section during the first phase.
3737 Since we don't do .gots or .plts, we just need to consider the
3738 virtual table relocs for gc. */
3741 m32r_elf_check_relocs (bfd *abfd,
3742 struct bfd_link_info *info,
3744 const Elf_Internal_Rela *relocs)
3746 Elf_Internal_Shdr *symtab_hdr;
3747 struct elf_link_hash_entry **sym_hashes;
3748 const Elf_Internal_Rela *rel;
3749 const Elf_Internal_Rela *rel_end;
3750 struct elf_m32r_link_hash_table *htab;
3754 if (info->relocatable)
3758 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3759 sym_hashes = elf_sym_hashes (abfd);
3761 htab = m32r_elf_hash_table (info);
3765 dynobj = htab->root.dynobj;
3767 rel_end = relocs + sec->reloc_count;
3768 for (rel = relocs; rel < rel_end; rel++)
3771 struct elf_link_hash_entry *h;
3772 unsigned long r_symndx;
3774 r_symndx = ELF32_R_SYM (rel->r_info);
3775 r_type = ELF32_R_TYPE (rel->r_info);
3776 if (r_symndx < symtab_hdr->sh_info)
3780 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3781 while (h->root.type == bfd_link_hash_indirect
3782 || h->root.type == bfd_link_hash_warning)
3783 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3786 /* Some relocs require a global offset table. */
3787 if (htab->sgot == NULL)
3791 case R_M32R_GOT16_HI_ULO:
3792 case R_M32R_GOT16_HI_SLO:
3794 case R_M32R_GOTOFF_HI_ULO:
3795 case R_M32R_GOTOFF_HI_SLO:
3796 case R_M32R_GOTOFF_LO:
3797 case R_M32R_GOT16_LO:
3798 case R_M32R_GOTPC24:
3799 case R_M32R_GOTPC_HI_ULO:
3800 case R_M32R_GOTPC_HI_SLO:
3801 case R_M32R_GOTPC_LO:
3804 htab->root.dynobj = dynobj = abfd;
3805 if (! create_got_section (dynobj, info))
3816 case R_M32R_GOT16_HI_ULO:
3817 case R_M32R_GOT16_HI_SLO:
3818 case R_M32R_GOT16_LO:
3822 h->got.refcount += 1;
3825 bfd_signed_vma *local_got_refcounts;
3827 /* This is a global offset table entry for a local
3829 local_got_refcounts = elf_local_got_refcounts (abfd);
3830 if (local_got_refcounts == NULL)
3834 size = symtab_hdr->sh_info;
3835 size *= sizeof (bfd_signed_vma);
3836 local_got_refcounts = bfd_zalloc (abfd, size);
3837 if (local_got_refcounts == NULL)
3839 elf_local_got_refcounts (abfd) = local_got_refcounts;
3841 local_got_refcounts[r_symndx] += 1;
3845 case R_M32R_26_PLTREL:
3846 /* This symbol requires a procedure linkage table entry. We
3847 actually build the entry in adjust_dynamic_symbol,
3848 because this might be a case of linking PIC code without
3849 linking in any dynamic objects, in which case we don't
3850 need to generate a procedure linkage table after all. */
3852 /* If this is a local symbol, we resolve it directly without
3853 creating a procedure linkage table entry. */
3857 if (h->forced_local)
3861 h->plt.refcount += 1;
3864 case R_M32R_16_RELA:
3865 case R_M32R_24_RELA:
3866 case R_M32R_32_RELA:
3868 case R_M32R_HI16_ULO_RELA:
3869 case R_M32R_HI16_SLO_RELA:
3870 case R_M32R_LO16_RELA:
3871 case R_M32R_SDA16_RELA:
3872 case R_M32R_10_PCREL_RELA:
3873 case R_M32R_18_PCREL_RELA:
3874 case R_M32R_26_PCREL_RELA:
3876 if (h != NULL && !info->shared)
3879 h->plt.refcount += 1;
3882 /* If we are creating a shared library, and this is a reloc
3883 against a global symbol, or a non PC relative reloc
3884 against a local symbol, then we need to copy the reloc
3885 into the shared library. However, if we are linking with
3886 -Bsymbolic, we do not need to copy a reloc against a
3887 global symbol which is defined in an object we are
3888 including in the link (i.e., DEF_REGULAR is set). At
3889 this point we have not seen all the input files, so it is
3890 possible that DEF_REGULAR is not set now but will be set
3891 later (it is never cleared). We account for that
3892 possibility below by storing information in the
3893 dyn_relocs field of the hash table entry. A similar
3894 situation occurs when creating shared libraries and symbol
3895 visibility changes render the symbol local.
3897 If on the other hand, we are creating an executable, we
3898 may need to keep relocations for symbols satisfied by a
3899 dynamic library if we manage to avoid copy relocs for the
3902 && (sec->flags & SEC_ALLOC) != 0
3903 && (( r_type != R_M32R_26_PCREL_RELA
3904 && r_type != R_M32R_18_PCREL_RELA
3905 && r_type != R_M32R_10_PCREL_RELA
3906 && r_type != R_M32R_REL32)
3908 && (! info->symbolic
3909 || h->root.type == bfd_link_hash_defweak
3910 || !h->def_regular))))
3912 && (sec->flags & SEC_ALLOC) != 0
3914 && (h->root.type == bfd_link_hash_defweak
3915 || !h->def_regular)))
3917 struct elf_m32r_dyn_relocs *p;
3918 struct elf_m32r_dyn_relocs **head;
3921 htab->root.dynobj = dynobj = abfd;
3923 /* When creating a shared object, we must copy these
3924 relocs into the output file. We create a reloc
3925 section in dynobj and make room for the reloc. */
3928 sreloc = _bfd_elf_make_dynamic_reloc_section
3929 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3935 /* If this is a global symbol, we count the number of
3936 relocations we need for this symbol. */
3938 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3941 /* Track dynamic relocs needed for local syms too. */
3944 Elf_Internal_Sym *isym;
3946 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3951 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3955 vpp = &elf_section_data (s)->local_dynrel;
3956 head = (struct elf_m32r_dyn_relocs **) vpp;
3960 if (p == NULL || p->sec != sec)
3962 bfd_size_type amt = sizeof (*p);
3964 p = bfd_alloc (dynobj, amt);
3975 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3976 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3977 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3978 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3983 /* This relocation describes the C++ object vtable hierarchy.
3984 Reconstruct it for later use during GC. */
3985 case R_M32R_RELA_GNU_VTINHERIT:
3986 case R_M32R_GNU_VTINHERIT:
3987 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3991 /* This relocation describes which C++ vtable entries are actually
3992 used. Record for later use during GC. */
3993 case R_M32R_GNU_VTENTRY:
3994 BFD_ASSERT (h != NULL);
3996 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
3999 case R_M32R_RELA_GNU_VTENTRY:
4000 BFD_ASSERT (h != NULL);
4002 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4011 static const struct bfd_elf_special_section m32r_elf_special_sections[] =
4013 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
4014 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4015 { NULL, 0, 0, 0, 0 }
4018 static enum elf_reloc_type_class
4019 m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
4021 switch ((int) ELF32_R_TYPE (rela->r_info))
4023 case R_M32R_RELATIVE: return reloc_class_relative;
4024 case R_M32R_JMP_SLOT: return reloc_class_plt;
4025 case R_M32R_COPY: return reloc_class_copy;
4026 default: return reloc_class_normal;
4030 #define ELF_ARCH bfd_arch_m32r
4031 #define ELF_TARGET_ID M32R_ELF_DATA
4032 #define ELF_MACHINE_CODE EM_M32R
4033 #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
4034 #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
4036 #define TARGET_BIG_SYM bfd_elf32_m32r_vec
4037 #define TARGET_BIG_NAME "elf32-m32r"
4038 #define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4039 #define TARGET_LITTLE_NAME "elf32-m32rle"
4041 #define elf_info_to_howto m32r_info_to_howto
4042 #define elf_info_to_howto_rel m32r_info_to_howto_rel
4043 #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4044 #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4045 #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4046 #define elf_backend_relocate_section m32r_elf_relocate_section
4047 #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4048 #define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4049 #define elf_backend_check_relocs m32r_elf_check_relocs
4051 #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4052 #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4053 #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4054 #define elf_backend_omit_section_dynsym \
4055 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4056 #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4057 #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4058 #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4059 #define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4060 #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4062 #define elf_backend_can_gc_sections 1
4064 #define elf_backend_rela_normal 1
4066 #define elf_backend_can_refcount 1
4067 #define elf_backend_want_got_plt 1
4068 #define elf_backend_plt_readonly 1
4069 #define elf_backend_want_plt_sym 0
4070 #define elf_backend_got_header_size 12
4072 #define elf_backend_may_use_rel_p 1
4073 #ifdef USE_M32R_OLD_RELOC
4074 #define elf_backend_default_use_rela_p 0
4075 #define elf_backend_may_use_rela_p 0
4077 #define elf_backend_default_use_rela_p 1
4078 #define elf_backend_may_use_rela_p 1
4081 #define elf_backend_object_p m32r_elf_object_p
4082 #define elf_backend_final_write_processing m32r_elf_final_write_processing
4083 #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4084 #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4085 #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
4086 #define elf_backend_special_sections m32r_elf_special_sections
4088 #include "elf32-target.h"
4090 #undef ELF_MAXPAGESIZE
4091 #define ELF_MAXPAGESIZE 0x1000
4093 #undef TARGET_BIG_SYM
4094 #define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
4095 #undef TARGET_BIG_NAME
4096 #define TARGET_BIG_NAME "elf32-m32r-linux"
4097 #undef TARGET_LITTLE_SYM
4098 #define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
4099 #undef TARGET_LITTLE_NAME
4100 #define TARGET_LITTLE_NAME "elf32-m32rle-linux"
4102 #define elf32_bed elf32_m32r_lin_bed
4104 #include "elf32-target.h"