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 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
1927 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1928 h->root.root.string);
1932 /* We must allocate the symbol in our .dynbss section, which will
1933 become part of the .bss section of the executable. There will be
1934 an entry for this symbol in the .dynsym section. The dynamic
1935 object will contain position independent code, so all references
1936 from the dynamic object to this symbol will go through the global
1937 offset table. The dynamic linker will use the .dynsym entry to
1938 determine the address it must put in the global offset table, so
1939 both the dynamic object and the regular object will refer to the
1940 same memory location for the variable. */
1942 htab = m32r_elf_hash_table (info);
1947 BFD_ASSERT (s != NULL);
1949 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1950 to copy the initial value out of the dynamic object and into the
1951 runtime process image. We need to remember the offset into the
1952 .rela.bss section we are going to use. */
1953 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1957 srel = htab->srelbss;
1958 BFD_ASSERT (srel != NULL);
1959 srel->size += sizeof (Elf32_External_Rela);
1963 return _bfd_elf_adjust_dynamic_copy (h, s);
1966 /* Allocate space in .plt, .got and associated reloc sections for
1970 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1972 struct bfd_link_info *info;
1973 struct elf_m32r_link_hash_table *htab;
1974 struct elf_m32r_link_hash_entry *eh;
1975 struct elf_m32r_dyn_relocs *p;
1977 if (h->root.type == bfd_link_hash_indirect)
1980 if (h->root.type == bfd_link_hash_warning)
1981 /* When warning symbols are created, they **replace** the "real"
1982 entry in the hash table, thus we never get to see the real
1983 symbol in a hash traversal. So look at it now. */
1984 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1986 info = (struct bfd_link_info *) inf;
1987 htab = m32r_elf_hash_table (info);
1991 eh = (struct elf_m32r_link_hash_entry *) h;
1993 if (htab->root.dynamic_sections_created
1994 && h->plt.refcount > 0)
1996 /* Make sure this symbol is output as a dynamic symbol.
1997 Undefined weak syms won't yet be marked as dynamic. */
1998 if (h->dynindx == -1
1999 && !h->forced_local)
2001 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2005 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2007 asection *s = htab->splt;
2009 /* If this is the first .plt entry, make room for the special
2012 s->size += PLT_ENTRY_SIZE;
2014 h->plt.offset = s->size;
2016 /* If this symbol is not defined in a regular file, and we are
2017 not generating a shared library, then set the symbol to this
2018 location in the .plt. This is required to make function
2019 pointers compare as equal between the normal executable and
2020 the shared library. */
2024 h->root.u.def.section = s;
2025 h->root.u.def.value = h->plt.offset;
2028 /* Make room for this entry. */
2029 s->size += PLT_ENTRY_SIZE;
2031 /* We also need to make an entry in the .got.plt section, which
2032 will be placed in the .got section by the linker script. */
2033 htab->sgotplt->size += 4;
2035 /* We also need to make an entry in the .rel.plt section. */
2036 htab->srelplt->size += sizeof (Elf32_External_Rela);
2040 h->plt.offset = (bfd_vma) -1;
2046 h->plt.offset = (bfd_vma) -1;
2050 if (h->got.refcount > 0)
2055 /* Make sure this symbol is output as a dynamic symbol.
2056 Undefined weak syms won't yet be marked as dynamic. */
2057 if (h->dynindx == -1
2058 && !h->forced_local)
2060 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2066 h->got.offset = s->size;
2068 dyn = htab->root.dynamic_sections_created;
2069 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2070 htab->srelgot->size += sizeof (Elf32_External_Rela);
2073 h->got.offset = (bfd_vma) -1;
2075 if (eh->dyn_relocs == NULL)
2078 /* In the shared -Bsymbolic case, discard space allocated for
2079 dynamic pc-relative relocs against symbols which turn out to be
2080 defined in regular objects. For the normal shared case, discard
2081 space for pc-relative relocs that have become local due to symbol
2082 visibility changes. */
2090 struct elf_m32r_dyn_relocs **pp;
2092 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2094 p->count -= p->pc_count;
2103 /* Also discard relocs on undefined weak syms with non-default
2105 if (eh->dyn_relocs != NULL
2106 && h->root.type == bfd_link_hash_undefweak)
2108 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2109 eh->dyn_relocs = NULL;
2111 /* Make sure undefined weak symbols are output as a dynamic
2113 else if (h->dynindx == -1
2114 && !h->forced_local)
2116 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2123 /* For the non-shared case, discard space for relocs against
2124 symbols which turn out to need copy relocs or are not
2130 || (htab->root.dynamic_sections_created
2131 && (h->root.type == bfd_link_hash_undefweak
2132 || h->root.type == bfd_link_hash_undefined))))
2134 /* Make sure this symbol is output as a dynamic symbol.
2135 Undefined weak syms won't yet be marked as dynamic. */
2136 if (h->dynindx == -1
2137 && !h->forced_local)
2139 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2143 /* If that succeeded, we know we'll be keeping all the
2145 if (h->dynindx != -1)
2149 eh->dyn_relocs = NULL;
2154 /* Finally, allocate space. */
2155 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2157 asection *sreloc = elf_section_data (p->sec)->sreloc;
2158 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2164 /* Find any dynamic relocs that apply to read-only sections. */
2167 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2169 struct elf_m32r_link_hash_entry *eh;
2170 struct elf_m32r_dyn_relocs *p;
2172 if (h->root.type == bfd_link_hash_warning)
2173 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2175 eh = (struct elf_m32r_link_hash_entry *) h;
2176 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2178 asection *s = p->sec->output_section;
2180 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2182 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2184 info->flags |= DF_TEXTREL;
2186 /* Not an error, just cut short the traversal. */
2193 /* Set the sizes of the dynamic sections. */
2196 m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2197 struct bfd_link_info *info)
2199 struct elf_m32r_link_hash_table *htab;
2206 printf ("m32r_elf_size_dynamic_sections()\n");
2209 htab = m32r_elf_hash_table (info);
2213 dynobj = htab->root.dynobj;
2214 BFD_ASSERT (dynobj != NULL);
2216 if (htab->root.dynamic_sections_created)
2218 /* Set the contents of the .interp section to the interpreter. */
2219 if (info->executable)
2221 s = bfd_get_section_by_name (dynobj, ".interp");
2222 BFD_ASSERT (s != NULL);
2223 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2224 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2228 /* Set up .got offsets for local syms, and space for local dynamic
2230 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2232 bfd_signed_vma *local_got;
2233 bfd_signed_vma *end_local_got;
2234 bfd_size_type locsymcount;
2235 Elf_Internal_Shdr *symtab_hdr;
2238 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2241 for (s = ibfd->sections; s != NULL; s = s->next)
2243 struct elf_m32r_dyn_relocs *p;
2245 for (p = ((struct elf_m32r_dyn_relocs *)
2246 elf_section_data (s)->local_dynrel);
2250 if (! bfd_is_abs_section (p->sec)
2251 && bfd_is_abs_section (p->sec->output_section))
2253 /* Input section has been discarded, either because
2254 it is a copy of a linkonce section or due to
2255 linker script /DISCARD/, so we'll be discarding
2258 else if (p->count != 0)
2260 srel = elf_section_data (p->sec)->sreloc;
2261 srel->size += p->count * sizeof (Elf32_External_Rela);
2262 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2263 info->flags |= DF_TEXTREL;
2268 local_got = elf_local_got_refcounts (ibfd);
2272 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2273 locsymcount = symtab_hdr->sh_info;
2274 end_local_got = local_got + locsymcount;
2276 srel = htab->srelgot;
2277 for (; local_got < end_local_got; ++local_got)
2281 *local_got = s->size;
2284 srel->size += sizeof (Elf32_External_Rela);
2287 *local_got = (bfd_vma) -1;
2291 /* Allocate global sym .plt and .got entries, and space for global
2292 sym dynamic relocs. */
2293 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2295 /* We now have determined the sizes of the various dynamic sections.
2296 Allocate memory for them. */
2298 for (s = dynobj->sections; s != NULL; s = s->next)
2300 if ((s->flags & SEC_LINKER_CREATED) == 0)
2305 || s == htab->sgotplt
2306 || s == htab->sdynbss)
2308 /* Strip this section if we don't need it; see the
2311 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2313 if (s->size != 0 && s != htab->srelplt)
2316 /* We use the reloc_count field as a counter if we need
2317 to copy relocs into the output file. */
2321 /* It's not one of our sections, so don't allocate space. */
2326 /* If we don't need this section, strip it from the
2327 output file. This is mostly to handle .rela.bss and
2328 .rela.plt. We must create both sections in
2329 create_dynamic_sections, because they must be created
2330 before the linker maps input sections to output
2331 sections. The linker does that before
2332 adjust_dynamic_symbol is called, and it is that
2333 function which decides whether anything needs to go
2334 into these sections. */
2335 s->flags |= SEC_EXCLUDE;
2339 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2342 /* Allocate memory for the section contents. We use bfd_zalloc
2343 here in case unused entries are not reclaimed before the
2344 section's contents are written out. This should not happen,
2345 but this way if it does, we get a R_M32R_NONE reloc instead
2347 s->contents = bfd_zalloc (dynobj, s->size);
2348 if (s->contents == NULL)
2352 if (htab->root.dynamic_sections_created)
2354 /* Add some entries to the .dynamic section. We fill in the
2355 values later, in m32r_elf_finish_dynamic_sections, but we
2356 must add the entries now so that we get the correct size for
2357 the .dynamic section. The DT_DEBUG entry is filled in by the
2358 dynamic linker and used by the debugger. */
2359 #define add_dynamic_entry(TAG, VAL) \
2360 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2362 if (info->executable)
2364 if (! add_dynamic_entry (DT_DEBUG, 0))
2368 if (htab->splt->size != 0)
2370 if (! add_dynamic_entry (DT_PLTGOT, 0)
2371 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2372 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2373 || ! add_dynamic_entry (DT_JMPREL, 0))
2379 if (! add_dynamic_entry (DT_RELA, 0)
2380 || ! add_dynamic_entry (DT_RELASZ, 0)
2381 || ! add_dynamic_entry (DT_RELAENT,
2382 sizeof (Elf32_External_Rela)))
2385 /* If any dynamic relocs apply to a read-only section,
2386 then we need a DT_TEXTREL entry. */
2387 if ((info->flags & DF_TEXTREL) == 0)
2388 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2391 if ((info->flags & DF_TEXTREL) != 0)
2393 if (! add_dynamic_entry (DT_TEXTREL, 0))
2398 #undef add_dynamic_entry
2403 /* Relocate an M32R/D ELF section.
2404 There is some attempt to make this function usable for many architectures,
2405 both for RELA and REL type relocs, if only to serve as a learning tool.
2407 The RELOCATE_SECTION function is called by the new ELF backend linker
2408 to handle the relocations for a section.
2410 The relocs are always passed as Rela structures; if the section
2411 actually uses Rel structures, the r_addend field will always be
2414 This function is responsible for adjust the section contents as
2415 necessary, and (if using Rela relocs and generating a
2416 relocatable output file) adjusting the reloc addend as
2419 This function does not have to worry about setting the reloc
2420 address or the reloc symbol index.
2422 LOCAL_SYMS is a pointer to the swapped in local symbols.
2424 LOCAL_SECTIONS is an array giving the section in the input file
2425 corresponding to the st_shndx field of each local symbol.
2427 The global hash table entry for the global symbols can be found
2428 via elf_sym_hashes (input_bfd).
2430 When generating relocatable output, this function must handle
2431 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2432 going to be the section symbol corresponding to the output
2433 section, which means that the addend must be adjusted
2437 m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2438 struct bfd_link_info *info,
2440 asection *input_section,
2442 Elf_Internal_Rela *relocs,
2443 Elf_Internal_Sym *local_syms,
2444 asection **local_sections)
2446 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2447 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2448 Elf_Internal_Rela *rel, *relend;
2449 /* Assume success. */
2450 bfd_boolean ret = TRUE;
2451 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2453 bfd_vma *local_got_offsets;
2454 asection *sgot, *splt, *sreloc;
2455 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2460 dynobj = htab->root.dynobj;
2461 local_got_offsets = elf_local_got_offsets (input_bfd);
2468 relend = relocs + input_section->reloc_count;
2469 for (; rel < relend; rel++)
2472 reloc_howto_type *howto;
2473 unsigned long r_symndx;
2474 struct elf_link_hash_entry *h;
2475 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2476 ensure it's zero (we use REL relocs, not RELA). Therefore this
2477 should be assigning zero to `addend', but for clarity we use
2479 bfd_vma addend = rel->r_addend;
2480 bfd_vma offset = rel->r_offset;
2482 Elf_Internal_Sym *sym;
2484 const char *sym_name;
2485 bfd_reloc_status_type r;
2486 const char *errmsg = NULL;
2487 bfd_boolean use_rel = FALSE;
2490 r_type = ELF32_R_TYPE (rel->r_info);
2491 if (r_type < 0 || r_type >= (int) R_M32R_max)
2493 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2496 bfd_set_error (bfd_error_bad_value);
2501 if ( r_type == R_M32R_GNU_VTENTRY
2502 || r_type == R_M32R_GNU_VTINHERIT
2503 || r_type == R_M32R_NONE
2504 || r_type == R_M32R_RELA_GNU_VTENTRY
2505 || r_type == R_M32R_RELA_GNU_VTINHERIT)
2508 if (r_type <= R_M32R_GNU_VTENTRY)
2511 howto = m32r_elf_howto_table + r_type;
2512 r_symndx = ELF32_R_SYM (rel->r_info);
2518 if (r_symndx < symtab_hdr->sh_info)
2521 sym = local_syms + r_symndx;
2522 sec = local_sections[r_symndx];
2523 sym_name = "<local symbol>";
2527 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2528 addend = rel->r_addend;
2532 relocation = (sec->output_section->vma
2533 + sec->output_offset
2539 /* External symbol. */
2542 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2543 while (h->root.type == bfd_link_hash_indirect
2544 || h->root.type == bfd_link_hash_warning)
2545 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2546 sym_name = h->root.root.string;
2548 if (h->root.type == bfd_link_hash_defined
2549 || h->root.type == bfd_link_hash_defweak)
2552 sec = h->root.u.def.section;
2554 dyn = htab->root.dynamic_sections_created;
2555 sec = h->root.u.def.section;
2556 if (r_type == R_M32R_GOTPC24
2557 || (r_type == R_M32R_GOTPC_HI_ULO
2558 || r_type == R_M32R_GOTPC_HI_SLO
2559 || r_type == R_M32R_GOTPC_LO)
2560 || (r_type == R_M32R_26_PLTREL
2561 && h->plt.offset != (bfd_vma) -1)
2562 || ((r_type == R_M32R_GOT24
2563 || r_type == R_M32R_GOT16_HI_ULO
2564 || r_type == R_M32R_GOT16_HI_SLO
2565 || r_type == R_M32R_GOT16_LO)
2566 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2569 || (! info->symbolic && h->dynindx != -1)
2570 || !h->def_regular))
2572 && ((! info->symbolic && h->dynindx != -1)
2574 && (((r_type == R_M32R_16_RELA
2575 || r_type == R_M32R_32_RELA
2576 || r_type == R_M32R_24_RELA
2577 || r_type == R_M32R_HI16_ULO_RELA
2578 || r_type == R_M32R_HI16_SLO_RELA
2579 || r_type == R_M32R_LO16_RELA)
2580 && !h->forced_local)
2581 || r_type == R_M32R_REL32
2582 || r_type == R_M32R_10_PCREL_RELA
2583 || r_type == R_M32R_18_PCREL_RELA
2584 || r_type == R_M32R_26_PCREL_RELA)
2585 && ((input_section->flags & SEC_ALLOC) != 0
2586 /* DWARF will emit R_M32R_16(24,32) relocations
2587 in its sections against symbols defined
2588 externally in shared libraries. We can't do
2589 anything with them here. */
2590 || ((input_section->flags & SEC_DEBUGGING) != 0
2591 && h->def_dynamic))))
2593 /* In these cases, we don't need the relocation
2594 value. We check specially because in some
2595 obscure cases sec->output_section will be NULL. */
2597 else if (sec->output_section != NULL)
2598 relocation = (h->root.u.def.value
2599 + sec->output_section->vma
2600 + sec->output_offset);
2601 else if (!info->relocatable)
2603 (*_bfd_error_handler)
2604 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2607 (long) rel->r_offset,
2609 h->root.root.string);
2612 else if (h->root.type == bfd_link_hash_undefweak)
2614 else if (info->unresolved_syms_in_objects == RM_IGNORE
2615 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2617 else if (!info->relocatable)
2619 if (! ((*info->callbacks->undefined_symbol)
2620 (info, h->root.root.string, input_bfd,
2621 input_section, offset,
2622 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2623 || ELF_ST_VISIBILITY (h->other)))))
2628 if (sec != NULL && elf_discarded_section (sec))
2630 /* For relocs against symbols from removed linkonce sections,
2631 or sections discarded by a linker script, we just want the
2632 section contents zeroed. Avoid any special processing. */
2633 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
2639 if (info->relocatable && !use_rel)
2641 /* This is a relocatable link. We don't have to change
2642 anything, unless the reloc is against a section symbol,
2643 in which case we have to adjust according to where the
2644 section symbol winds up in the output section. */
2645 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2646 rel->r_addend += sec->output_offset;
2650 if (info->relocatable && use_rel)
2652 /* This is a relocatable link. We don't have to change
2653 anything, unless the reloc is against a section symbol,
2654 in which case we have to adjust according to where the
2655 section symbol winds up in the output section. */
2656 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2659 addend += sec->output_offset;
2661 /* If partial_inplace, we need to store any additional addend
2662 back in the section. */
2663 if (! howto->partial_inplace)
2665 /* ??? Here is a nice place to call a special_function
2667 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2668 r = _bfd_relocate_contents (howto, input_bfd,
2669 addend, contents + offset);
2672 Elf_Internal_Rela *lorel;
2674 /* We allow an arbitrary number of HI16 relocs before the
2675 LO16 reloc. This permits gcc to emit the HI and LO relocs
2677 for (lorel = rel + 1;
2679 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2680 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2684 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2686 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2691 r = _bfd_relocate_contents (howto, input_bfd,
2692 addend, contents + offset);
2697 /* Sanity check the address. */
2698 if (offset > high_address)
2700 r = bfd_reloc_outofrange;
2704 switch ((int) r_type)
2707 /* Relocation is relative to the start of the global offset
2708 table (for ld24 rx, #uimm24). eg access at label+addend
2710 ld24 rx. #label@GOTOFF + addend
2713 BFD_ASSERT (sgot != NULL);
2715 relocation = -(relocation - sgot->output_section->vma);
2716 rel->r_addend = -rel->r_addend;
2719 case R_M32R_GOTOFF_HI_ULO:
2720 case R_M32R_GOTOFF_HI_SLO:
2721 case R_M32R_GOTOFF_LO:
2722 BFD_ASSERT (sgot != NULL);
2724 relocation -= sgot->output_section->vma;
2726 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2727 && ((relocation + rel->r_addend) & 0x8000))
2728 rel->r_addend += 0x10000;
2731 case R_M32R_GOTPC24:
2732 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2733 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2735 relocation = sgot->output_section->vma;
2738 case R_M32R_GOTPC_HI_ULO:
2739 case R_M32R_GOTPC_HI_SLO:
2740 case R_M32R_GOTPC_LO:
2742 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2744 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2745 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2748 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2749 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2751 relocation = sgot->output_section->vma;
2752 relocation -= (input_section->output_section->vma
2753 + input_section->output_offset
2755 if ((r_type == R_M32R_GOTPC_HI_SLO)
2756 && ((relocation + rel->r_addend) & 0x8000))
2757 rel->r_addend += 0x10000;
2761 case R_M32R_GOT16_HI_ULO:
2762 case R_M32R_GOT16_HI_SLO:
2763 case R_M32R_GOT16_LO:
2766 /* Relocation is to the entry for this symbol in the global
2768 BFD_ASSERT (sgot != NULL);
2775 off = h->got.offset;
2776 BFD_ASSERT (off != (bfd_vma) -1);
2778 dyn = htab->root.dynamic_sections_created;
2779 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2786 /* This is actually a static link, or it is a
2787 -Bsymbolic link and the symbol is defined
2788 locally, or the symbol was forced to be local
2789 because of a version file. We must initialize
2790 this entry in the global offset table. Since the
2791 offset must always be a multiple of 4, we use the
2792 least significant bit to record whether we have
2793 initialized it already.
2795 When doing a dynamic link, we create a .rela.got
2796 relocation entry to initialize the value. This
2797 is done in the finish_dynamic_symbol routine. */
2802 bfd_put_32 (output_bfd, relocation,
2803 sgot->contents + off);
2808 relocation = sgot->output_offset + off;
2815 BFD_ASSERT (local_got_offsets != NULL
2816 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2818 off = local_got_offsets[r_symndx];
2820 /* The offset must always be a multiple of 4. We use
2821 the least significant bit to record whether we have
2822 already processed this entry. */
2827 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2832 Elf_Internal_Rela outrel;
2834 /* We need to generate a R_M32R_RELATIVE reloc
2835 for the dynamic linker. */
2836 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2837 BFD_ASSERT (srelgot != NULL);
2839 outrel.r_offset = (sgot->output_section->vma
2840 + sgot->output_offset
2842 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2843 outrel.r_addend = relocation;
2844 loc = srelgot->contents;
2845 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2846 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2847 ++srelgot->reloc_count;
2850 local_got_offsets[r_symndx] |= 1;
2853 relocation = sgot->output_offset + off;
2855 if ((r_type == R_M32R_GOT16_HI_SLO)
2856 && ((relocation + rel->r_addend) & 0x8000))
2857 rel->r_addend += 0x10000;
2861 case R_M32R_26_PLTREL:
2862 /* Relocation is to the entry for this symbol in the
2863 procedure linkage table. */
2865 /* The native assembler will generate a 26_PLTREL reloc
2866 for a local symbol if you assemble a call from one
2867 section to another when using -K pic. */
2871 if (h->forced_local)
2874 if (h->plt.offset == (bfd_vma) -1)
2875 /* We didn't make a PLT entry for this symbol. This
2876 happens when statically linking PIC code, or when
2877 using -Bsymbolic. */
2880 relocation = (splt->output_section->vma
2881 + splt->output_offset
2885 case R_M32R_HI16_SLO_RELA:
2886 if ((relocation + rel->r_addend) & 0x8000)
2887 rel->r_addend += 0x10000;
2890 case R_M32R_16_RELA:
2891 case R_M32R_24_RELA:
2892 case R_M32R_32_RELA:
2894 case R_M32R_10_PCREL_RELA:
2895 case R_M32R_18_PCREL_RELA:
2896 case R_M32R_26_PCREL_RELA:
2897 case R_M32R_HI16_ULO_RELA:
2898 case R_M32R_LO16_RELA:
2900 && r_symndx != STN_UNDEF
2901 && (input_section->flags & SEC_ALLOC) != 0
2902 && (( r_type != R_M32R_10_PCREL_RELA
2903 && r_type != R_M32R_18_PCREL_RELA
2904 && r_type != R_M32R_26_PCREL_RELA
2905 && r_type != R_M32R_REL32)
2908 && (! info->symbolic
2909 || !h->def_regular))))
2911 Elf_Internal_Rela outrel;
2912 bfd_boolean skip, relocate;
2915 /* When generating a shared object, these relocations
2916 are copied into the output file to be resolved at run
2920 sreloc = _bfd_elf_get_dynamic_reloc_section
2921 (input_bfd, input_section, /*rela?*/ TRUE);
2929 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2933 if (outrel.r_offset == (bfd_vma) -1)
2935 else if (outrel.r_offset == (bfd_vma) -2)
2936 skip = relocate = TRUE;
2937 outrel.r_offset += (input_section->output_section->vma
2938 + input_section->output_offset);
2941 memset (&outrel, 0, sizeof outrel);
2942 else if ( r_type == R_M32R_10_PCREL_RELA
2943 || r_type == R_M32R_18_PCREL_RELA
2944 || r_type == R_M32R_26_PCREL_RELA
2945 || r_type == R_M32R_REL32)
2947 BFD_ASSERT (h != NULL && h->dynindx != -1);
2948 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2949 outrel.r_addend = rel->r_addend;
2953 /* h->dynindx may be -1 if this symbol was marked to
2956 || ((info->symbolic || h->dynindx == -1)
2960 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2961 outrel.r_addend = relocation + rel->r_addend;
2965 BFD_ASSERT (h->dynindx != -1);
2966 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2967 outrel.r_addend = relocation + rel->r_addend;
2971 loc = sreloc->contents;
2972 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2973 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2974 ++sreloc->reloc_count;
2976 /* If this reloc is against an external symbol, we do
2977 not want to fiddle with the addend. Otherwise, we
2978 need to include the symbol value so that it becomes
2979 an addend for the dynamic reloc. */
2984 else if (r_type != R_M32R_10_PCREL_RELA)
2988 case (int) R_M32R_10_PCREL :
2989 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2991 sec, relocation, addend);
2994 case (int) R_M32R_HI16_SLO :
2995 case (int) R_M32R_HI16_ULO :
2997 Elf_Internal_Rela *lorel;
2999 /* We allow an arbitrary number of HI16 relocs before the
3000 LO16 reloc. This permits gcc to emit the HI and LO relocs
3002 for (lorel = rel + 1;
3004 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
3005 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
3009 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3011 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3012 contents, relocation + addend);
3016 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3018 relocation, addend);
3023 case (int) R_M32R_SDA16_RELA:
3024 case (int) R_M32R_SDA16 :
3028 BFD_ASSERT (sec != NULL);
3029 name = bfd_get_section_name (abfd, sec);
3031 if ( strcmp (name, ".sdata") == 0
3032 || strcmp (name, ".sbss") == 0
3033 || strcmp (name, ".scommon") == 0)
3036 bfd *out_bfd = sec->output_section->owner;
3038 r = m32r_elf_final_sda_base (out_bfd, info,
3041 if (r != bfd_reloc_ok)
3047 /* At this point `relocation' contains the object's
3049 relocation -= sda_base;
3050 /* Now it contains the offset from _SDA_BASE_. */
3054 (*_bfd_error_handler)
3055 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3059 m32r_elf_howto_table[(int) r_type].name);
3060 /*bfd_set_error (bfd_error_bad_value); ??? why? */
3067 default : /* OLD_M32R_RELOC */
3069 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3071 relocation, addend);
3075 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3076 contents, rel->r_offset,
3077 relocation, rel->r_addend);
3083 if (r != bfd_reloc_ok)
3085 /* FIXME: This should be generic enough to go in a utility. */
3089 name = h->root.root.string;
3092 name = (bfd_elf_string_from_elf_section
3093 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3094 if (name == NULL || *name == '\0')
3095 name = bfd_section_name (input_bfd, sec);
3103 case bfd_reloc_overflow:
3104 if (! ((*info->callbacks->reloc_overflow)
3105 (info, (h ? &h->root : NULL), name, howto->name,
3106 (bfd_vma) 0, input_bfd, input_section, offset)))
3110 case bfd_reloc_undefined:
3111 if (! ((*info->callbacks->undefined_symbol)
3112 (info, name, input_bfd, input_section,
3117 case bfd_reloc_outofrange:
3118 errmsg = _("internal error: out of range error");
3121 case bfd_reloc_notsupported:
3122 errmsg = _("internal error: unsupported relocation error");
3125 case bfd_reloc_dangerous:
3126 errmsg = _("internal error: dangerous error");
3130 errmsg = _("internal error: unknown error");
3134 if (!((*info->callbacks->warning)
3135 (info, errmsg, name, input_bfd, input_section,
3146 /* Finish up dynamic symbol handling. We set the contents of various
3147 dynamic sections here. */
3150 m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3151 struct bfd_link_info *info,
3152 struct elf_link_hash_entry *h,
3153 Elf_Internal_Sym *sym)
3155 struct elf_m32r_link_hash_table *htab;
3159 printf ("m32r_elf_finish_dynamic_symbol()\n");
3162 htab = m32r_elf_hash_table (info);
3166 if (h->plt.offset != (bfd_vma) -1)
3174 Elf_Internal_Rela rela;
3176 /* This symbol has an entry in the procedure linkage table. Set
3179 BFD_ASSERT (h->dynindx != -1);
3182 sgot = htab->sgotplt;
3183 srela = htab->srelplt;
3184 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3186 /* Get the index in the procedure linkage table which
3187 corresponds to this symbol. This is the index of this symbol
3188 in all the symbols for which we are making plt entries. The
3189 first entry in the procedure linkage table is reserved. */
3190 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3192 /* Get the offset into the .got table of the entry that
3193 corresponds to this function. Each .got entry is 4 bytes.
3194 The first three are reserved. */
3195 got_offset = (plt_index + 3) * 4;
3197 /* Fill in the entry in the procedure linkage table. */
3200 bfd_put_32 (output_bfd,
3202 + (((sgot->output_section->vma
3203 + sgot->output_offset
3204 + got_offset) >> 16) & 0xffff)),
3205 splt->contents + h->plt.offset);
3206 bfd_put_32 (output_bfd,
3208 + ((sgot->output_section->vma
3209 + sgot->output_offset
3210 + got_offset) & 0xffff)),
3211 splt->contents + h->plt.offset + 4);
3212 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3213 splt->contents + h->plt.offset + 8);
3214 bfd_put_32 (output_bfd,
3216 + plt_index * sizeof (Elf32_External_Rela)),
3217 splt->contents + h->plt.offset + 12);
3218 bfd_put_32 (output_bfd,
3220 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3221 splt->contents + h->plt.offset + 16);
3225 bfd_put_32 (output_bfd,
3226 PLT_ENTRY_WORD0 + got_offset,
3227 splt->contents + h->plt.offset);
3228 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3229 splt->contents + h->plt.offset + 4);
3230 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3231 splt->contents + h->plt.offset + 8);
3232 bfd_put_32 (output_bfd,
3234 + plt_index * sizeof (Elf32_External_Rela)),
3235 splt->contents + h->plt.offset + 12);
3236 bfd_put_32 (output_bfd,
3238 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3239 splt->contents + h->plt.offset + 16);
3242 /* Fill in the entry in the global offset table. */
3243 bfd_put_32 (output_bfd,
3244 (splt->output_section->vma
3245 + splt->output_offset
3247 + 12), /* same offset */
3248 sgot->contents + got_offset);
3250 /* Fill in the entry in the .rela.plt section. */
3251 rela.r_offset = (sgot->output_section->vma
3252 + sgot->output_offset
3254 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3256 loc = srela->contents;
3257 loc += plt_index * sizeof (Elf32_External_Rela);
3258 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3260 if (!h->def_regular)
3262 /* Mark the symbol as undefined, rather than as defined in
3263 the .plt section. Leave the value alone. */
3264 sym->st_shndx = SHN_UNDEF;
3268 if (h->got.offset != (bfd_vma) -1)
3272 Elf_Internal_Rela rela;
3274 /* This symbol has an entry in the global offset table. Set it
3278 srela = htab->srelgot;
3279 BFD_ASSERT (sgot != NULL && srela != NULL);
3281 rela.r_offset = (sgot->output_section->vma
3282 + sgot->output_offset
3283 + (h->got.offset &~ 1));
3285 /* If this is a -Bsymbolic link, and the symbol is defined
3286 locally, we just want to emit a RELATIVE reloc. Likewise if
3287 the symbol was forced to be local because of a version file.
3288 The entry in the global offset table will already have been
3289 initialized in the relocate_section function. */
3296 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3297 rela.r_addend = (h->root.u.def.value
3298 + h->root.u.def.section->output_section->vma
3299 + h->root.u.def.section->output_offset);
3303 BFD_ASSERT ((h->got.offset & 1) == 0);
3304 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3305 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3309 loc = srela->contents;
3310 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3311 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3312 ++srela->reloc_count;
3318 Elf_Internal_Rela rela;
3320 /* This symbols needs a copy reloc. Set it up. */
3322 BFD_ASSERT (h->dynindx != -1
3323 && (h->root.type == bfd_link_hash_defined
3324 || h->root.type == bfd_link_hash_defweak));
3326 s = bfd_get_section_by_name (h->root.u.def.section->owner,
3328 BFD_ASSERT (s != NULL);
3330 rela.r_offset = (h->root.u.def.value
3331 + h->root.u.def.section->output_section->vma
3332 + h->root.u.def.section->output_offset);
3333 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3336 loc += s->reloc_count * sizeof (Elf32_External_Rela);
3337 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3341 /* Mark some specially defined symbols as absolute. */
3342 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3343 || h == htab->root.hgot)
3344 sym->st_shndx = SHN_ABS;
3350 /* Finish up the dynamic sections. */
3353 m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3354 struct bfd_link_info *info)
3356 struct elf_m32r_link_hash_table *htab;
3362 printf ("m32r_elf_finish_dynamic_sections()\n");
3365 htab = m32r_elf_hash_table (info);
3369 dynobj = htab->root.dynobj;
3371 sgot = htab->sgotplt;
3372 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3374 if (htab->root.dynamic_sections_created)
3377 Elf32_External_Dyn *dyncon, *dynconend;
3379 BFD_ASSERT (sgot != NULL && sdyn != NULL);
3381 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3382 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3384 for (; dyncon < dynconend; dyncon++)
3386 Elf_Internal_Dyn dyn;
3389 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3397 s = htab->sgot->output_section;
3400 s = htab->srelplt->output_section;
3402 BFD_ASSERT (s != NULL);
3403 dyn.d_un.d_ptr = s->vma;
3404 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3408 s = htab->srelplt->output_section;
3409 BFD_ASSERT (s != NULL);
3410 dyn.d_un.d_val = s->size;
3411 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3415 /* My reading of the SVR4 ABI indicates that the
3416 procedure linkage table relocs (DT_JMPREL) should be
3417 included in the overall relocs (DT_RELA). This is
3418 what Solaris does. However, UnixWare can not handle
3419 that case. Therefore, we override the DT_RELASZ entry
3420 here to make it not include the JMPREL relocs. Since
3421 the linker script arranges for .rela.plt to follow all
3422 other relocation sections, we don't have to worry
3423 about changing the DT_RELA entry. */
3424 if (htab->srelplt != NULL)
3426 s = htab->srelplt->output_section;
3427 dyn.d_un.d_val -= s->size;
3429 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3434 /* Fill in the first entry in the procedure linkage table. */
3436 if (splt && splt->size > 0)
3440 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3441 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3442 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3443 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3444 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3449 /* addr = .got + 4 */
3450 addr = sgot->output_section->vma + sgot->output_offset + 4;
3451 bfd_put_32 (output_bfd,
3452 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3454 bfd_put_32 (output_bfd,
3455 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3456 splt->contents + 4);
3457 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3458 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3459 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3462 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3467 /* Fill in the first three entries in the global offset table. */
3468 if (sgot && sgot->size > 0)
3471 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3473 bfd_put_32 (output_bfd,
3474 sdyn->output_section->vma + sdyn->output_offset,
3476 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3477 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3479 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3486 /* Set the right machine number. */
3489 m32r_elf_object_p (bfd *abfd)
3491 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3494 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
3495 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3496 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3501 /* Store the machine number in the flags field. */
3504 m32r_elf_final_write_processing (bfd *abfd,
3505 bfd_boolean linker ATTRIBUTE_UNUSED)
3509 switch (bfd_get_mach (abfd))
3512 case bfd_mach_m32r: val = E_M32R_ARCH; break;
3513 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3514 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3517 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3518 elf_elfheader (abfd)->e_flags |= val;
3521 /* Function to keep M32R specific file flags. */
3524 m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3526 BFD_ASSERT (!elf_flags_init (abfd)
3527 || elf_elfheader (abfd)->e_flags == flags);
3529 elf_elfheader (abfd)->e_flags = flags;
3530 elf_flags_init (abfd) = TRUE;
3534 /* Merge backend specific data from an object file to the output
3535 object file when linking. */
3538 m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3543 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3544 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3547 in_flags = elf_elfheader (ibfd)->e_flags;
3548 out_flags = elf_elfheader (obfd)->e_flags;
3550 if (! elf_flags_init (obfd))
3552 /* If the input is the default architecture then do not
3553 bother setting the flags for the output architecture,
3554 instead allow future merges to do this. If no future
3555 merges ever set these flags then they will retain their
3556 unitialised values, which surprise surprise, correspond
3557 to the default values. */
3558 if (bfd_get_arch_info (ibfd)->the_default)
3561 elf_flags_init (obfd) = TRUE;
3562 elf_elfheader (obfd)->e_flags = in_flags;
3564 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3565 && bfd_get_arch_info (obfd)->the_default)
3566 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3567 bfd_get_mach (ibfd));
3572 /* Check flag compatibility. */
3573 if (in_flags == out_flags)
3576 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3578 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3579 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3580 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
3582 (*_bfd_error_handler)
3583 (_("%B: Instruction set mismatch with previous modules"), ibfd);
3585 bfd_set_error (bfd_error_bad_value);
3593 /* Display the flags field. */
3596 m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3598 FILE * file = (FILE *) ptr;
3600 BFD_ASSERT (abfd != NULL && ptr != NULL);
3602 _bfd_elf_print_private_bfd_data (abfd, ptr);
3604 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3606 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3609 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
3610 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3611 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3620 m32r_elf_gc_mark_hook (asection *sec,
3621 struct bfd_link_info *info,
3622 Elf_Internal_Rela *rel,
3623 struct elf_link_hash_entry *h,
3624 Elf_Internal_Sym *sym)
3627 switch (ELF32_R_TYPE (rel->r_info))
3629 case R_M32R_GNU_VTINHERIT:
3630 case R_M32R_GNU_VTENTRY:
3631 case R_M32R_RELA_GNU_VTINHERIT:
3632 case R_M32R_RELA_GNU_VTENTRY:
3636 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3640 m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3641 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3642 asection *sec ATTRIBUTE_UNUSED,
3643 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3645 /* Update the got entry reference counts for the section being removed. */
3646 Elf_Internal_Shdr *symtab_hdr;
3647 struct elf_link_hash_entry **sym_hashes;
3648 bfd_signed_vma *local_got_refcounts;
3649 const Elf_Internal_Rela *rel, *relend;
3651 if (info->relocatable)
3654 elf_section_data (sec)->local_dynrel = NULL;
3656 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3657 sym_hashes = elf_sym_hashes (abfd);
3658 local_got_refcounts = elf_local_got_refcounts (abfd);
3660 relend = relocs + sec->reloc_count;
3661 for (rel = relocs; rel < relend; rel++)
3663 unsigned long r_symndx;
3664 struct elf_link_hash_entry *h = NULL;
3666 r_symndx = ELF32_R_SYM (rel->r_info);
3667 if (r_symndx >= symtab_hdr->sh_info)
3669 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3670 while (h->root.type == bfd_link_hash_indirect
3671 || h->root.type == bfd_link_hash_warning)
3672 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3675 switch (ELF32_R_TYPE (rel->r_info))
3677 case R_M32R_GOT16_HI_ULO:
3678 case R_M32R_GOT16_HI_SLO:
3679 case R_M32R_GOT16_LO:
3681 case R_M32R_GOTOFF_HI_ULO:
3682 case R_M32R_GOTOFF_HI_SLO:
3683 case R_M32R_GOTOFF_LO:
3685 case R_M32R_GOTPC_HI_ULO:
3686 case R_M32R_GOTPC_HI_SLO:
3687 case R_M32R_GOTPC_LO:
3688 case R_M32R_GOTPC24:
3691 if (h->got.refcount > 0)
3696 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3697 local_got_refcounts[r_symndx]--;
3701 case R_M32R_16_RELA:
3702 case R_M32R_24_RELA:
3703 case R_M32R_32_RELA:
3705 case R_M32R_HI16_ULO_RELA:
3706 case R_M32R_HI16_SLO_RELA:
3707 case R_M32R_LO16_RELA:
3708 case R_M32R_SDA16_RELA:
3709 case R_M32R_10_PCREL_RELA:
3710 case R_M32R_18_PCREL_RELA:
3711 case R_M32R_26_PCREL_RELA:
3714 struct elf_m32r_link_hash_entry *eh;
3715 struct elf_m32r_dyn_relocs **pp;
3716 struct elf_m32r_dyn_relocs *p;
3718 if (!info->shared && h->plt.refcount > 0)
3719 h->plt.refcount -= 1;
3721 eh = (struct elf_m32r_link_hash_entry *) h;
3723 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3726 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3727 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3728 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3729 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3739 case R_M32R_26_PLTREL:
3742 if (h->plt.refcount > 0)
3755 /* Look through the relocs for a section during the first phase.
3756 Since we don't do .gots or .plts, we just need to consider the
3757 virtual table relocs for gc. */
3760 m32r_elf_check_relocs (bfd *abfd,
3761 struct bfd_link_info *info,
3763 const Elf_Internal_Rela *relocs)
3765 Elf_Internal_Shdr *symtab_hdr;
3766 struct elf_link_hash_entry **sym_hashes;
3767 const Elf_Internal_Rela *rel;
3768 const Elf_Internal_Rela *rel_end;
3769 struct elf_m32r_link_hash_table *htab;
3773 if (info->relocatable)
3777 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3778 sym_hashes = elf_sym_hashes (abfd);
3780 htab = m32r_elf_hash_table (info);
3784 dynobj = htab->root.dynobj;
3786 rel_end = relocs + sec->reloc_count;
3787 for (rel = relocs; rel < rel_end; rel++)
3790 struct elf_link_hash_entry *h;
3791 unsigned long r_symndx;
3793 r_symndx = ELF32_R_SYM (rel->r_info);
3794 r_type = ELF32_R_TYPE (rel->r_info);
3795 if (r_symndx < symtab_hdr->sh_info)
3799 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3800 while (h->root.type == bfd_link_hash_indirect
3801 || h->root.type == bfd_link_hash_warning)
3802 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3805 /* Some relocs require a global offset table. */
3806 if (htab->sgot == NULL)
3810 case R_M32R_GOT16_HI_ULO:
3811 case R_M32R_GOT16_HI_SLO:
3813 case R_M32R_GOTOFF_HI_ULO:
3814 case R_M32R_GOTOFF_HI_SLO:
3815 case R_M32R_GOTOFF_LO:
3816 case R_M32R_GOT16_LO:
3817 case R_M32R_GOTPC24:
3818 case R_M32R_GOTPC_HI_ULO:
3819 case R_M32R_GOTPC_HI_SLO:
3820 case R_M32R_GOTPC_LO:
3823 htab->root.dynobj = dynobj = abfd;
3824 if (! create_got_section (dynobj, info))
3835 case R_M32R_GOT16_HI_ULO:
3836 case R_M32R_GOT16_HI_SLO:
3837 case R_M32R_GOT16_LO:
3841 h->got.refcount += 1;
3844 bfd_signed_vma *local_got_refcounts;
3846 /* This is a global offset table entry for a local
3848 local_got_refcounts = elf_local_got_refcounts (abfd);
3849 if (local_got_refcounts == NULL)
3853 size = symtab_hdr->sh_info;
3854 size *= sizeof (bfd_signed_vma);
3855 local_got_refcounts = bfd_zalloc (abfd, size);
3856 if (local_got_refcounts == NULL)
3858 elf_local_got_refcounts (abfd) = local_got_refcounts;
3860 local_got_refcounts[r_symndx] += 1;
3864 case R_M32R_26_PLTREL:
3865 /* This symbol requires a procedure linkage table entry. We
3866 actually build the entry in adjust_dynamic_symbol,
3867 because this might be a case of linking PIC code without
3868 linking in any dynamic objects, in which case we don't
3869 need to generate a procedure linkage table after all. */
3871 /* If this is a local symbol, we resolve it directly without
3872 creating a procedure linkage table entry. */
3876 if (h->forced_local)
3880 h->plt.refcount += 1;
3883 case R_M32R_16_RELA:
3884 case R_M32R_24_RELA:
3885 case R_M32R_32_RELA:
3887 case R_M32R_HI16_ULO_RELA:
3888 case R_M32R_HI16_SLO_RELA:
3889 case R_M32R_LO16_RELA:
3890 case R_M32R_SDA16_RELA:
3891 case R_M32R_10_PCREL_RELA:
3892 case R_M32R_18_PCREL_RELA:
3893 case R_M32R_26_PCREL_RELA:
3895 if (h != NULL && !info->shared)
3898 h->plt.refcount += 1;
3901 /* If we are creating a shared library, and this is a reloc
3902 against a global symbol, or a non PC relative reloc
3903 against a local symbol, then we need to copy the reloc
3904 into the shared library. However, if we are linking with
3905 -Bsymbolic, we do not need to copy a reloc against a
3906 global symbol which is defined in an object we are
3907 including in the link (i.e., DEF_REGULAR is set). At
3908 this point we have not seen all the input files, so it is
3909 possible that DEF_REGULAR is not set now but will be set
3910 later (it is never cleared). We account for that
3911 possibility below by storing information in the
3912 dyn_relocs field of the hash table entry. A similar
3913 situation occurs when creating shared libraries and symbol
3914 visibility changes render the symbol local.
3916 If on the other hand, we are creating an executable, we
3917 may need to keep relocations for symbols satisfied by a
3918 dynamic library if we manage to avoid copy relocs for the
3921 && (sec->flags & SEC_ALLOC) != 0
3922 && (( r_type != R_M32R_26_PCREL_RELA
3923 && r_type != R_M32R_18_PCREL_RELA
3924 && r_type != R_M32R_10_PCREL_RELA
3925 && r_type != R_M32R_REL32)
3927 && (! info->symbolic
3928 || h->root.type == bfd_link_hash_defweak
3929 || !h->def_regular))))
3931 && (sec->flags & SEC_ALLOC) != 0
3933 && (h->root.type == bfd_link_hash_defweak
3934 || !h->def_regular)))
3936 struct elf_m32r_dyn_relocs *p;
3937 struct elf_m32r_dyn_relocs **head;
3940 htab->root.dynobj = dynobj = abfd;
3942 /* When creating a shared object, we must copy these
3943 relocs into the output file. We create a reloc
3944 section in dynobj and make room for the reloc. */
3947 sreloc = _bfd_elf_make_dynamic_reloc_section
3948 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3954 /* If this is a global symbol, we count the number of
3955 relocations we need for this symbol. */
3957 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3960 /* Track dynamic relocs needed for local syms too. */
3963 Elf_Internal_Sym *isym;
3965 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3970 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3974 vpp = &elf_section_data (s)->local_dynrel;
3975 head = (struct elf_m32r_dyn_relocs **) vpp;
3979 if (p == NULL || p->sec != sec)
3981 bfd_size_type amt = sizeof (*p);
3983 p = bfd_alloc (dynobj, amt);
3994 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3995 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3996 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3997 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
4002 /* This relocation describes the C++ object vtable hierarchy.
4003 Reconstruct it for later use during GC. */
4004 case R_M32R_RELA_GNU_VTINHERIT:
4005 case R_M32R_GNU_VTINHERIT:
4006 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4010 /* This relocation describes which C++ vtable entries are actually
4011 used. Record for later use during GC. */
4012 case R_M32R_GNU_VTENTRY:
4013 BFD_ASSERT (h != NULL);
4015 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
4018 case R_M32R_RELA_GNU_VTENTRY:
4019 BFD_ASSERT (h != NULL);
4021 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4030 static const struct bfd_elf_special_section m32r_elf_special_sections[] =
4032 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
4033 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4034 { NULL, 0, 0, 0, 0 }
4037 static enum elf_reloc_type_class
4038 m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
4040 switch ((int) ELF32_R_TYPE (rela->r_info))
4042 case R_M32R_RELATIVE: return reloc_class_relative;
4043 case R_M32R_JMP_SLOT: return reloc_class_plt;
4044 case R_M32R_COPY: return reloc_class_copy;
4045 default: return reloc_class_normal;
4049 #define ELF_ARCH bfd_arch_m32r
4050 #define ELF_TARGET_ID M32R_ELF_DATA
4051 #define ELF_MACHINE_CODE EM_M32R
4052 #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
4053 #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
4055 #define TARGET_BIG_SYM bfd_elf32_m32r_vec
4056 #define TARGET_BIG_NAME "elf32-m32r"
4057 #define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4058 #define TARGET_LITTLE_NAME "elf32-m32rle"
4060 #define elf_info_to_howto m32r_info_to_howto
4061 #define elf_info_to_howto_rel m32r_info_to_howto_rel
4062 #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4063 #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4064 #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4065 #define elf_backend_relocate_section m32r_elf_relocate_section
4066 #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4067 #define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4068 #define elf_backend_check_relocs m32r_elf_check_relocs
4070 #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4071 #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4072 #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4073 #define elf_backend_omit_section_dynsym \
4074 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4075 #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4076 #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4077 #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4078 #define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4079 #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4081 #define elf_backend_can_gc_sections 1
4083 #define elf_backend_rela_normal 1
4085 #define elf_backend_can_refcount 1
4086 #define elf_backend_want_got_plt 1
4087 #define elf_backend_plt_readonly 1
4088 #define elf_backend_want_plt_sym 0
4089 #define elf_backend_got_header_size 12
4091 #define elf_backend_may_use_rel_p 1
4092 #ifdef USE_M32R_OLD_RELOC
4093 #define elf_backend_default_use_rela_p 0
4094 #define elf_backend_may_use_rela_p 0
4096 #define elf_backend_default_use_rela_p 1
4097 #define elf_backend_may_use_rela_p 1
4100 #define elf_backend_object_p m32r_elf_object_p
4101 #define elf_backend_final_write_processing m32r_elf_final_write_processing
4102 #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4103 #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4104 #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
4105 #define elf_backend_special_sections m32r_elf_special_sections
4107 #include "elf32-target.h"
4109 #undef ELF_MAXPAGESIZE
4110 #define ELF_MAXPAGESIZE 0x1000
4112 #undef TARGET_BIG_SYM
4113 #define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
4114 #undef TARGET_BIG_NAME
4115 #define TARGET_BIG_NAME "elf32-m32r-linux"
4116 #undef TARGET_LITTLE_SYM
4117 #define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
4118 #undef TARGET_LITTLE_NAME
4119 #define TARGET_LITTLE_NAME "elf32-m32rle-linux"
4121 #define elf32_bed elf32_m32r_lin_bed
4123 #include "elf32-target.h"