1 /* M32R-specific support for 32-bit ELF.
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2006, 2007, 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
28 #define NOP_INSN 0x7000
29 #define MAKE_PARALLEL(insn) ((insn) | 0x8000)
31 /* Use REL instead of RELA to save space.
32 This only saves space in libraries and object files, but perhaps
33 relocs will be put in ROM? All in all though, REL relocs are a pain
40 /* Use RELA. But use REL to link old objects for backwords compatibility. */
42 /* Functions for the M32R ELF linker. */
44 /* The name of the dynamic interpreter. This is put in the .interp
47 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
49 /* The nop opcode we use. */
51 #define M32R_NOP 0x7000f000
53 #define PLT_EMPTY 0x10101010 /* RIE -> RIE */
55 /* The size in bytes of an entry in the procedure linkage table. */
57 #define PLT_ENTRY_SIZE 20
58 #define PLT_HEADER_SIZE 20
60 /* The first one entries in a procedure linkage table are reserved,
61 and the initial contents are unimportant (we zero them out).
62 Subsequent entries look like this. */
64 #define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
65 #define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
66 #define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
67 #define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
68 #define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
70 #define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
71 #define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
72 #define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
73 #define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
74 #define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
76 #define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
77 #define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
78 #define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
79 #define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
80 #define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
81 #define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
82 #define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
85 /* Utility to actually perform an R_M32R_10_PCREL reloc. */
87 static bfd_reloc_status_type
88 m32r_elf_do_10_pcrel_reloc (bfd *abfd,
89 reloc_howto_type *howto,
90 asection *input_section,
93 asection *symbol_section ATTRIBUTE_UNUSED,
97 bfd_signed_vma relocation;
99 bfd_reloc_status_type status;
101 /* Sanity check the address (offset in section). */
102 if (offset > bfd_get_section_limit (abfd, input_section))
103 return bfd_reloc_outofrange;
105 relocation = symbol_value + addend;
106 /* Make it pc relative. */
107 relocation -= (input_section->output_section->vma
108 + input_section->output_offset);
109 /* These jumps mask off the lower two bits of the current address
110 before doing pcrel calculations. */
111 relocation -= (offset & -(bfd_vma) 4);
113 if (relocation < -0x200 || relocation > 0x1ff)
114 status = bfd_reloc_overflow;
116 status = bfd_reloc_ok;
118 x = bfd_get_16 (abfd, data + offset);
119 relocation >>= howto->rightshift;
120 relocation <<= howto->bitpos;
121 x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
122 bfd_put_16 (abfd, (bfd_vma) x, data + offset);
127 /* Handle the R_M32R_10_PCREL reloc. */
129 static bfd_reloc_status_type
130 m32r_elf_10_pcrel_reloc (bfd * abfd,
131 arelent * reloc_entry,
134 asection * input_section,
136 char ** error_message ATTRIBUTE_UNUSED)
138 /* This part is from bfd_elf_generic_reloc. */
139 if (output_bfd != NULL
140 && (symbol->flags & BSF_SECTION_SYM) == 0
141 && (! reloc_entry->howto->partial_inplace
142 || reloc_entry->addend == 0))
144 reloc_entry->address += input_section->output_offset;
148 if (output_bfd != NULL)
149 /* FIXME: See bfd_perform_relocation. Is this right? */
150 return bfd_reloc_continue;
152 return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
154 data, reloc_entry->address,
157 + symbol->section->output_section->vma
158 + symbol->section->output_offset),
159 reloc_entry->addend);
162 /* Do generic partial_inplace relocation.
163 This is a local replacement for bfd_elf_generic_reloc. */
165 static bfd_reloc_status_type
166 m32r_elf_generic_reloc (bfd *input_bfd,
167 arelent *reloc_entry,
170 asection *input_section,
172 char **error_message ATTRIBUTE_UNUSED)
174 bfd_reloc_status_type ret;
176 bfd_byte *inplace_address;
178 /* This part is from bfd_elf_generic_reloc.
179 If we're relocating, and this an external symbol, we don't want
180 to change anything. */
181 if (output_bfd != NULL
182 && (symbol->flags & BSF_SECTION_SYM) == 0
183 && reloc_entry->addend == 0)
185 reloc_entry->address += input_section->output_offset;
189 /* Now do the reloc in the usual way.
190 ??? It would be nice to call bfd_elf_generic_reloc here,
191 but we have partial_inplace set. bfd_elf_generic_reloc will
192 pass the handling back to bfd_install_relocation which will install
193 a section relative addend which is wrong. */
195 /* Sanity check the address (offset in section). */
196 if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
197 return bfd_reloc_outofrange;
200 if (bfd_is_und_section (symbol->section)
201 && output_bfd == NULL)
202 ret = bfd_reloc_undefined;
204 if (bfd_is_com_section (symbol->section)
205 || output_bfd != NULL)
208 relocation = symbol->value;
210 /* Only do this for a final link. */
211 if (output_bfd == NULL)
213 relocation += symbol->section->output_section->vma;
214 relocation += symbol->section->output_offset;
217 relocation += reloc_entry->addend;
218 inplace_address = (bfd_byte *) data + reloc_entry->address;
221 x = ( (x & ~reloc_entry->howto->dst_mask) | \
222 (((x & reloc_entry->howto->src_mask) + relocation) & \
223 reloc_entry->howto->dst_mask))
225 switch (reloc_entry->howto->size)
229 short x = bfd_get_16 (input_bfd, inplace_address);
231 bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
236 unsigned long x = bfd_get_32 (input_bfd, inplace_address);
238 bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
245 if (output_bfd != NULL)
246 reloc_entry->address += input_section->output_offset;
251 /* Handle the R_M32R_SDA16 reloc.
252 This reloc is used to compute the address of objects in the small data area
253 and to perform loads and stores from that area.
254 The lower 16 bits are sign extended and added to the register specified
255 in the instruction, which is assumed to point to _SDA_BASE_. */
257 static bfd_reloc_status_type
258 m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
259 arelent *reloc_entry,
261 void * data ATTRIBUTE_UNUSED,
262 asection *input_section,
264 char **error_message ATTRIBUTE_UNUSED)
266 /* This part is from bfd_elf_generic_reloc. */
267 if (output_bfd != NULL
268 && (symbol->flags & BSF_SECTION_SYM) == 0
269 && (! reloc_entry->howto->partial_inplace
270 || reloc_entry->addend == 0))
272 reloc_entry->address += input_section->output_offset;
276 if (output_bfd != NULL)
277 /* FIXME: See bfd_perform_relocation. Is this right? */
278 return bfd_reloc_continue;
280 /* FIXME: not sure what to do here yet. But then again, the linker
281 may never call us. */
286 /* Handle the R_M32R_HI16_[SU]LO relocs.
287 HI16_SLO is for the add3 and load/store with displacement instructions.
288 HI16_ULO is for the or3 instruction.
289 For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
290 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
291 we must add one to the high 16 bytes (which will get subtracted off when
292 the low 16 bits are added).
293 These relocs have to be done in combination with an R_M32R_LO16 reloc
294 because there is a carry from the LO16 to the HI16. Here we just save
295 the information we need; we do the actual relocation when we see the LO16.
296 This code is copied from the elf32-mips.c. We also support an arbitrary
297 number of HI16 relocs to be associated with a single LO16 reloc. The
298 assembler sorts the relocs to ensure each HI16 immediately precedes its
299 LO16. However if there are multiple copies, the assembler may not find
300 the real LO16 so it picks the first one it finds. */
304 struct m32r_hi16 *next;
309 /* FIXME: This should not be a static variable. */
311 static struct m32r_hi16 *m32r_hi16_list;
313 static bfd_reloc_status_type
314 m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
315 arelent *reloc_entry,
318 asection *input_section,
320 char **error_message ATTRIBUTE_UNUSED)
322 bfd_reloc_status_type ret;
326 /* This part is from bfd_elf_generic_reloc.
327 If we're relocating, and this an external symbol, we don't want
328 to change anything. */
329 if (output_bfd != NULL
330 && (symbol->flags & BSF_SECTION_SYM) == 0
331 && reloc_entry->addend == 0)
333 reloc_entry->address += input_section->output_offset;
337 /* Sanity check the address (offset in section). */
338 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
339 return bfd_reloc_outofrange;
342 if (bfd_is_und_section (symbol->section)
343 && output_bfd == NULL)
344 ret = bfd_reloc_undefined;
346 if (bfd_is_com_section (symbol->section))
349 relocation = symbol->value;
351 relocation += symbol->section->output_section->vma;
352 relocation += symbol->section->output_offset;
353 relocation += reloc_entry->addend;
355 /* Save the information, and let LO16 do the actual relocation. */
356 n = bfd_malloc ((bfd_size_type) sizeof *n);
358 return bfd_reloc_outofrange;
359 n->addr = (bfd_byte *) data + reloc_entry->address;
360 n->addend = relocation;
361 n->next = m32r_hi16_list;
364 if (output_bfd != NULL)
365 reloc_entry->address += input_section->output_offset;
370 /* Handle an M32R ELF HI16 reloc. */
373 m32r_elf_relocate_hi16 (bfd *input_bfd,
375 Elf_Internal_Rela *relhi,
376 Elf_Internal_Rela *rello,
383 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
385 addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
386 if (type == R_M32R_HI16_SLO)
387 addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
391 addend += ((insn & 0xffff) << 16) + addlo;
393 /* Reaccount for sign extension of low part. */
394 if (type == R_M32R_HI16_SLO
395 && (addend & 0x8000) != 0)
398 bfd_put_32 (input_bfd,
399 (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
400 contents + relhi->r_offset);
403 /* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
404 inplace relocation; this function exists in order to do the
405 R_M32R_HI16_[SU]LO relocation described above. */
407 static bfd_reloc_status_type
408 m32r_elf_lo16_reloc (bfd *input_bfd,
409 arelent *reloc_entry,
412 asection *input_section,
414 char **error_message)
416 /* This part is from bfd_elf_generic_reloc.
417 If we're relocating, and this an external symbol, we don't want
418 to change anything. */
419 if (output_bfd != NULL
420 && (symbol->flags & BSF_SECTION_SYM) == 0
421 && reloc_entry->addend == 0)
423 reloc_entry->address += input_section->output_offset;
427 if (m32r_hi16_list != NULL)
437 struct m32r_hi16 *next;
439 /* Do the HI16 relocation. Note that we actually don't need
440 to know anything about the LO16 itself, except where to
441 find the low 16 bits of the addend needed by the LO16. */
442 insn = bfd_get_32 (input_bfd, l->addr);
443 vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
444 & 0xffff) ^ 0x8000) - 0x8000;
445 val = ((insn & 0xffff) << 16) + vallo;
448 /* Reaccount for sign extension of low part. */
449 if ((val & 0x8000) != 0)
452 insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
453 bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
460 m32r_hi16_list = NULL;
463 /* Now do the LO16 reloc in the usual way.
464 ??? It would be nice to call bfd_elf_generic_reloc here,
465 but we have partial_inplace set. bfd_elf_generic_reloc will
466 pass the handling back to bfd_install_relocation which will install
467 a section relative addend which is wrong. */
468 return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
469 input_section, output_bfd, error_message);
473 static reloc_howto_type m32r_elf_howto_table[] =
475 /* This reloc does nothing. */
476 HOWTO (R_M32R_NONE, /* type */
478 2, /* size (0 = byte, 1 = short, 2 = long) */
480 FALSE, /* pc_relative */
482 complain_overflow_bitfield, /* complain_on_overflow */
483 bfd_elf_generic_reloc, /* special_function */
484 "R_M32R_NONE", /* name */
485 FALSE, /* partial_inplace */
488 FALSE), /* pcrel_offset */
490 /* A 16 bit absolute relocation. */
491 HOWTO (R_M32R_16, /* type */
493 1, /* size (0 = byte, 1 = short, 2 = long) */
495 FALSE, /* pc_relative */
497 complain_overflow_bitfield, /* complain_on_overflow */
498 m32r_elf_generic_reloc,/* special_function */
499 "R_M32R_16", /* name */
500 TRUE, /* partial_inplace */
501 0xffff, /* src_mask */
502 0xffff, /* dst_mask */
503 FALSE), /* pcrel_offset */
505 /* A 32 bit absolute relocation. */
506 HOWTO (R_M32R_32, /* type */
508 2, /* size (0 = byte, 1 = short, 2 = long) */
510 FALSE, /* pc_relative */
512 complain_overflow_bitfield, /* complain_on_overflow */
513 m32r_elf_generic_reloc,/* special_function */
514 "R_M32R_32", /* name */
515 TRUE, /* partial_inplace */
516 0xffffffff, /* src_mask */
517 0xffffffff, /* dst_mask */
518 FALSE), /* pcrel_offset */
520 /* A 24 bit address. */
521 HOWTO (R_M32R_24, /* type */
523 2, /* size (0 = byte, 1 = short, 2 = long) */
525 FALSE, /* pc_relative */
527 complain_overflow_unsigned, /* complain_on_overflow */
528 m32r_elf_generic_reloc,/* special_function */
529 "R_M32R_24", /* name */
530 TRUE, /* partial_inplace */
531 0xffffff, /* src_mask */
532 0xffffff, /* dst_mask */
533 FALSE), /* pcrel_offset */
535 /* An PC Relative 10-bit relocation, shifted by 2.
536 This reloc is complicated because relocations are relative to pc & -4.
537 i.e. branches in the right insn slot use the address of the left insn
539 /* ??? It's not clear whether this should have partial_inplace set or not.
540 Branch relaxing in the assembler can store the addend in the insn,
541 and if bfd_install_relocation gets called the addend may get added
543 HOWTO (R_M32R_10_PCREL, /* type */
545 1, /* size (0 = byte, 1 = short, 2 = long) */
547 TRUE, /* pc_relative */
549 complain_overflow_signed, /* complain_on_overflow */
550 m32r_elf_10_pcrel_reloc, /* special_function */
551 "R_M32R_10_PCREL", /* name */
552 FALSE, /* partial_inplace */
555 TRUE), /* pcrel_offset */
557 /* A relative 18 bit relocation, right shifted by 2. */
558 HOWTO (R_M32R_18_PCREL, /* type */
560 2, /* size (0 = byte, 1 = short, 2 = long) */
562 TRUE, /* pc_relative */
564 complain_overflow_signed, /* complain_on_overflow */
565 bfd_elf_generic_reloc, /* special_function */
566 "R_M32R_18_PCREL", /* name */
567 FALSE, /* partial_inplace */
568 0xffff, /* src_mask */
569 0xffff, /* dst_mask */
570 TRUE), /* pcrel_offset */
572 /* A relative 26 bit relocation, right shifted by 2. */
573 /* ??? It's not clear whether this should have partial_inplace set or not.
574 Branch relaxing in the assembler can store the addend in the insn,
575 and if bfd_install_relocation gets called the addend may get added
577 HOWTO (R_M32R_26_PCREL, /* type */
579 2, /* size (0 = byte, 1 = short, 2 = long) */
581 TRUE, /* pc_relative */
583 complain_overflow_signed, /* complain_on_overflow */
584 bfd_elf_generic_reloc, /* special_function */
585 "R_M32R_26_PCREL", /* name */
586 FALSE, /* partial_inplace */
587 0xffffff, /* src_mask */
588 0xffffff, /* dst_mask */
589 TRUE), /* pcrel_offset */
591 /* High 16 bits of address when lower 16 is or'd in. */
592 HOWTO (R_M32R_HI16_ULO, /* type */
594 2, /* size (0 = byte, 1 = short, 2 = long) */
596 FALSE, /* pc_relative */
598 complain_overflow_dont, /* complain_on_overflow */
599 m32r_elf_hi16_reloc, /* special_function */
600 "R_M32R_HI16_ULO", /* name */
601 TRUE, /* partial_inplace */
602 0x0000ffff, /* src_mask */
603 0x0000ffff, /* dst_mask */
604 FALSE), /* pcrel_offset */
606 /* High 16 bits of address when lower 16 is added in. */
607 HOWTO (R_M32R_HI16_SLO, /* type */
609 2, /* size (0 = byte, 1 = short, 2 = long) */
611 FALSE, /* pc_relative */
613 complain_overflow_dont, /* complain_on_overflow */
614 m32r_elf_hi16_reloc, /* special_function */
615 "R_M32R_HI16_SLO", /* name */
616 TRUE, /* partial_inplace */
617 0x0000ffff, /* src_mask */
618 0x0000ffff, /* dst_mask */
619 FALSE), /* pcrel_offset */
621 /* Lower 16 bits of address. */
622 HOWTO (R_M32R_LO16, /* type */
624 2, /* size (0 = byte, 1 = short, 2 = long) */
626 FALSE, /* pc_relative */
628 complain_overflow_dont, /* complain_on_overflow */
629 m32r_elf_lo16_reloc, /* special_function */
630 "R_M32R_LO16", /* name */
631 TRUE, /* partial_inplace */
632 0x0000ffff, /* src_mask */
633 0x0000ffff, /* dst_mask */
634 FALSE), /* pcrel_offset */
636 /* Small data area 16 bits offset. */
637 HOWTO (R_M32R_SDA16, /* type */
639 2, /* size (0 = byte, 1 = short, 2 = long) */
641 FALSE, /* pc_relative */
643 complain_overflow_signed, /* complain_on_overflow */
644 m32r_elf_sda16_reloc, /* special_function */
645 "R_M32R_SDA16", /* name */
646 TRUE, /* partial_inplace */ /* FIXME: correct? */
647 0x0000ffff, /* src_mask */
648 0x0000ffff, /* dst_mask */
649 FALSE), /* pcrel_offset */
651 /* GNU extension to record C++ vtable hierarchy. */
652 HOWTO (R_M32R_GNU_VTINHERIT, /* type */
654 2, /* size (0 = byte, 1 = short, 2 = long) */
656 FALSE, /* pc_relative */
658 complain_overflow_dont, /* complain_on_overflow */
659 NULL, /* special_function */
660 "R_M32R_GNU_VTINHERIT", /* name */
661 FALSE, /* partial_inplace */
664 FALSE), /* pcrel_offset */
666 /* GNU extension to record C++ vtable member usage. */
667 HOWTO (R_M32R_GNU_VTENTRY, /* type */
669 2, /* size (0 = byte, 1 = short, 2 = long) */
671 FALSE, /* pc_relative */
673 complain_overflow_dont, /* complain_on_overflow */
674 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
675 "R_M32R_GNU_VTENTRY", /* name */
676 FALSE, /* partial_inplace */
679 FALSE), /* pcrel_offset */
702 /* A 16 bit absolute relocation. */
703 HOWTO (R_M32R_16_RELA, /* type */
705 1, /* size (0 = byte, 1 = short, 2 = long) */
707 FALSE, /* pc_relative */
709 complain_overflow_bitfield, /* complain_on_overflow */
710 bfd_elf_generic_reloc, /* special_function */
711 "R_M32R_16_RELA", /* name */
712 FALSE, /* partial_inplace */
713 0xffff, /* src_mask */
714 0xffff, /* dst_mask */
715 FALSE), /* pcrel_offset */
717 /* A 32 bit absolute relocation. */
718 HOWTO (R_M32R_32_RELA, /* type */
720 2, /* size (0 = byte, 1 = short, 2 = long) */
722 FALSE, /* pc_relative */
724 complain_overflow_bitfield, /* complain_on_overflow */
725 bfd_elf_generic_reloc,/* special_function */
726 "R_M32R_32_RELA", /* name */
727 FALSE, /* partial_inplace */
728 0xffffffff, /* src_mask */
729 0xffffffff, /* dst_mask */
730 FALSE), /* pcrel_offset */
732 /* A 24 bit address. */
733 HOWTO (R_M32R_24_RELA, /* type */
735 2, /* size (0 = byte, 1 = short, 2 = long) */
737 FALSE, /* pc_relative */
739 complain_overflow_unsigned, /* complain_on_overflow */
740 bfd_elf_generic_reloc,/* special_function */
741 "R_M32R_24_RELA", /* name */
742 FALSE, /* partial_inplace */
743 0xffffff, /* src_mask */
744 0xffffff, /* dst_mask */
745 FALSE), /* pcrel_offset */
747 HOWTO (R_M32R_10_PCREL_RELA, /* type */
749 1, /* size (0 = byte, 1 = short, 2 = long) */
751 TRUE, /* pc_relative */
753 complain_overflow_signed, /* complain_on_overflow */
754 m32r_elf_10_pcrel_reloc, /* special_function */
755 "R_M32R_10_PCREL_RELA",/* name */
756 FALSE, /* partial_inplace */
759 TRUE), /* pcrel_offset */
761 /* A relative 18 bit relocation, right shifted by 2. */
762 HOWTO (R_M32R_18_PCREL_RELA, /* type */
764 2, /* size (0 = byte, 1 = short, 2 = long) */
766 TRUE, /* pc_relative */
768 complain_overflow_signed, /* complain_on_overflow */
769 bfd_elf_generic_reloc, /* special_function */
770 "R_M32R_18_PCREL_RELA",/* name */
771 FALSE, /* partial_inplace */
772 0xffff, /* src_mask */
773 0xffff, /* dst_mask */
774 TRUE), /* pcrel_offset */
776 /* A relative 26 bit relocation, right shifted by 2. */
777 HOWTO (R_M32R_26_PCREL_RELA, /* type */
779 2, /* size (0 = byte, 1 = short, 2 = long) */
781 TRUE, /* pc_relative */
783 complain_overflow_signed, /* complain_on_overflow */
784 bfd_elf_generic_reloc, /* special_function */
785 "R_M32R_26_PCREL_RELA",/* name */
786 FALSE, /* partial_inplace */
787 0xffffff, /* src_mask */
788 0xffffff, /* dst_mask */
789 TRUE), /* pcrel_offset */
791 /* High 16 bits of address when lower 16 is or'd in. */
792 HOWTO (R_M32R_HI16_ULO_RELA, /* type */
794 2, /* size (0 = byte, 1 = short, 2 = long) */
796 FALSE, /* pc_relative */
798 complain_overflow_dont, /* complain_on_overflow */
799 bfd_elf_generic_reloc, /* special_function */
800 "R_M32R_HI16_ULO_RELA",/* name */
801 FALSE, /* partial_inplace */
802 0x0000ffff, /* src_mask */
803 0x0000ffff, /* dst_mask */
804 FALSE), /* pcrel_offset */
806 /* High 16 bits of address when lower 16 is added in. */
807 HOWTO (R_M32R_HI16_SLO_RELA, /* type */
809 2, /* size (0 = byte, 1 = short, 2 = long) */
811 FALSE, /* pc_relative */
813 complain_overflow_dont, /* complain_on_overflow */
814 bfd_elf_generic_reloc, /* special_function */
815 "R_M32R_HI16_SLO_RELA",/* name */
816 FALSE, /* partial_inplace */
817 0x0000ffff, /* src_mask */
818 0x0000ffff, /* dst_mask */
819 FALSE), /* pcrel_offset */
821 /* Lower 16 bits of address. */
822 HOWTO (R_M32R_LO16_RELA, /* type */
824 2, /* size (0 = byte, 1 = short, 2 = long) */
826 FALSE, /* pc_relative */
828 complain_overflow_dont, /* complain_on_overflow */
829 bfd_elf_generic_reloc, /* special_function */
830 "R_M32R_LO16_RELA", /* name */
831 FALSE, /* partial_inplace */
832 0x0000ffff, /* src_mask */
833 0x0000ffff, /* dst_mask */
834 FALSE), /* pcrel_offset */
836 /* Small data area 16 bits offset. */
837 HOWTO (R_M32R_SDA16_RELA, /* type */
839 2, /* size (0 = byte, 1 = short, 2 = long) */
841 FALSE, /* pc_relative */
843 complain_overflow_signed, /* complain_on_overflow */
844 bfd_elf_generic_reloc, /* special_function */
845 "R_M32R_SDA16_RELA", /* name */
846 TRUE, /* partial_inplace */ /* FIXME: correct? */
847 0x0000ffff, /* src_mask */
848 0x0000ffff, /* dst_mask */
849 FALSE), /* pcrel_offset */
851 /* GNU extension to record C++ vtable hierarchy. */
852 HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
854 2, /* size (0 = byte, 1 = short, 2 = long) */
856 FALSE, /* pc_relative */
858 complain_overflow_dont, /* complain_on_overflow */
859 NULL, /* special_function */
860 "R_M32R_RELA_GNU_VTINHERIT", /* name */
861 FALSE, /* partial_inplace */
864 FALSE), /* pcrel_offset */
866 /* GNU extension to record C++ vtable member usage. */
867 HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
869 2, /* size (0 = byte, 1 = short, 2 = long) */
871 FALSE, /* pc_relative */
873 complain_overflow_dont, /* complain_on_overflow */
874 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
875 "R_M32R_RELA_GNU_VTENTRY", /* name */
876 FALSE, /* partial_inplace */
879 FALSE), /* pcrel_offset */
881 /* A 32 bit PC relative relocation. */
882 HOWTO (R_M32R_REL32, /* type */
884 2, /* size (0 = byte, 1 = short, 2 = long) */
886 TRUE, /* pc_relative */
888 complain_overflow_bitfield, /* complain_on_overflow */
889 bfd_elf_generic_reloc,/* special_function */
890 "R_M32R_REL32", /* name */
891 FALSE, /* partial_inplace */
892 0xffffffff, /* src_mask */
893 0xffffffff, /* dst_mask */
894 TRUE), /* pcrel_offset */
899 /* Like R_M32R_24, but referring to the GOT table entry for
901 HOWTO (R_M32R_GOT24, /* type */
903 2, /* size (0 = byte, 1 = short, 2 = long) */
905 FALSE, /* pc_relative */
907 complain_overflow_unsigned, /* complain_on_overflow */
908 bfd_elf_generic_reloc, /* special_function */
909 "R_M32R_GOT24", /* name */
910 FALSE, /* partial_inplace */
911 0xffffff, /* src_mask */
912 0xffffff, /* dst_mask */
913 FALSE), /* pcrel_offset */
915 /* Like R_M32R_PCREL, but referring to the procedure linkage table
916 entry for the symbol. */
917 HOWTO (R_M32R_26_PLTREL, /* type */
919 2, /* size (0 = byte, 1 = short, 2 = long) */
921 TRUE, /* pc_relative */
923 complain_overflow_signed, /* complain_on_overflow */
924 bfd_elf_generic_reloc, /* special_function */
925 "R_M32R_26_PLTREL", /* name */
926 FALSE, /* partial_inplace */
927 0xffffff, /* src_mask */
928 0xffffff, /* dst_mask */
929 TRUE), /* pcrel_offset */
931 /* This is used only by the dynamic linker. The symbol should exist
932 both in the object being run and in some shared library. The
933 dynamic linker copies the data addressed by the symbol from the
934 shared library into the object, because the object being
935 run has to have the data at some particular address. */
936 HOWTO (R_M32R_COPY, /* type */
938 2, /* size (0 = byte, 1 = short, 2 = long) */
940 FALSE, /* pc_relative */
942 complain_overflow_bitfield, /* complain_on_overflow */
943 bfd_elf_generic_reloc, /* special_function */
944 "R_M32R_COPY", /* name */
945 FALSE, /* partial_inplace */
946 0xffffffff, /* src_mask */
947 0xffffffff, /* dst_mask */
948 FALSE), /* pcrel_offset */
950 /* Like R_M32R_24, but used when setting global offset table
952 HOWTO (R_M32R_GLOB_DAT, /* type */
954 2, /* size (0 = byte, 1 = short, 2 = long) */
956 FALSE, /* pc_relative */
958 complain_overflow_bitfield, /* complain_on_overflow */
959 bfd_elf_generic_reloc, /* special_function */
960 "R_M32R_GLOB_DAT", /* name */
961 FALSE, /* partial_inplace */
962 0xffffffff, /* src_mask */
963 0xffffffff, /* dst_mask */
964 FALSE), /* pcrel_offset */
966 /* Marks a procedure linkage table entry for a symbol. */
967 HOWTO (R_M32R_JMP_SLOT, /* type */
969 2, /* size (0 = byte, 1 = short, 2 = long) */
971 FALSE, /* pc_relative */
973 complain_overflow_bitfield, /* complain_on_overflow */
974 bfd_elf_generic_reloc, /* special_function */
975 "R_M32R_JMP_SLOT", /* name */
976 FALSE, /* partial_inplace */
977 0xffffffff, /* src_mask */
978 0xffffffff, /* dst_mask */
979 FALSE), /* pcrel_offset */
981 /* Used only by the dynamic linker. When the object is run, this
982 longword is set to the load address of the object, plus the
984 HOWTO (R_M32R_RELATIVE, /* type */
986 2, /* size (0 = byte, 1 = short, 2 = long) */
988 FALSE, /* pc_relative */
990 complain_overflow_bitfield, /* complain_on_overflow */
991 bfd_elf_generic_reloc, /* special_function */
992 "R_M32R_RELATIVE", /* name */
993 FALSE, /* partial_inplace */
994 0xffffffff, /* src_mask */
995 0xffffffff, /* dst_mask */
996 FALSE), /* pcrel_offset */
998 HOWTO (R_M32R_GOTOFF, /* type */
1000 2, /* size (0 = byte, 1 = short, 2 = long) */
1002 FALSE, /* pc_relative */
1004 complain_overflow_bitfield, /* complain_on_overflow */
1005 bfd_elf_generic_reloc, /* special_function */
1006 "R_M32R_GOTOFF", /* name */
1007 FALSE, /* partial_inplace */
1008 0xffffff, /* src_mask */
1009 0xffffff, /* dst_mask */
1010 FALSE), /* pcrel_offset */
1012 /* An PC Relative 24-bit relocation used when setting PIC offset
1014 HOWTO (R_M32R_GOTPC24, /* type */
1016 2, /* size (0 = byte, 1 = short, 2 = long) */
1018 TRUE, /* pc_relative */
1020 complain_overflow_unsigned, /* complain_on_overflow */
1021 bfd_elf_generic_reloc, /* special_function */
1022 "R_M32R_GOTPC24", /* name */
1023 FALSE, /* partial_inplace */
1024 0xffffff, /* src_mask */
1025 0xffffff, /* dst_mask */
1026 TRUE), /* pcrel_offset */
1028 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1030 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1031 16, /* rightshift */
1032 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 FALSE, /* pc_relative */
1036 complain_overflow_dont, /* complain_on_overflow */
1037 bfd_elf_generic_reloc, /* special_function */
1038 "R_M32R_GOT16_HI_ULO", /* name */
1039 FALSE, /* partial_inplace */
1040 0x0000ffff, /* src_mask */
1041 0x0000ffff, /* dst_mask */
1042 FALSE), /* pcrel_offset */
1044 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1046 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1047 16, /* rightshift */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 FALSE, /* pc_relative */
1052 complain_overflow_dont, /* complain_on_overflow */
1053 bfd_elf_generic_reloc, /* special_function */
1054 "R_M32R_GOT16_HI_SLO", /* name */
1055 FALSE, /* partial_inplace */
1056 0x0000ffff, /* src_mask */
1057 0x0000ffff, /* dst_mask */
1058 FALSE), /* pcrel_offset */
1060 /* Like R_M32R_LO16, but referring to the GOT table entry for
1062 HOWTO (R_M32R_GOT16_LO, /* type */
1064 2, /* size (0 = byte, 1 = short, 2 = long) */
1066 FALSE, /* pc_relative */
1068 complain_overflow_dont, /* complain_on_overflow */
1069 bfd_elf_generic_reloc, /* special_function */
1070 "R_M32R_GOT16_LO", /* name */
1071 FALSE, /* partial_inplace */
1072 0x0000ffff, /* src_mask */
1073 0x0000ffff, /* dst_mask */
1074 FALSE), /* pcrel_offset */
1076 /* An PC Relative relocation used when setting PIC offset table register.
1077 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1079 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1080 16, /* rightshift */
1081 2, /* size (0 = byte, 1 = short, 2 = long) */
1083 FALSE, /* pc_relative */
1085 complain_overflow_dont, /* complain_on_overflow */
1086 bfd_elf_generic_reloc, /* special_function */
1087 "R_M32R_GOTPC_HI_ULO", /* name */
1088 FALSE, /* partial_inplace */
1089 0x0000ffff, /* src_mask */
1090 0x0000ffff, /* dst_mask */
1091 TRUE), /* pcrel_offset */
1093 /* An PC Relative relocation used when setting PIC offset table register.
1094 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1096 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1097 16, /* rightshift */
1098 2, /* size (0 = byte, 1 = short, 2 = long) */
1100 FALSE, /* pc_relative */
1102 complain_overflow_dont, /* complain_on_overflow */
1103 bfd_elf_generic_reloc, /* special_function */
1104 "R_M32R_GOTPC_HI_SLO", /* name */
1105 FALSE, /* partial_inplace */
1106 0x0000ffff, /* src_mask */
1107 0x0000ffff, /* dst_mask */
1108 TRUE), /* pcrel_offset */
1110 /* An PC Relative relocation used when setting PIC offset table register.
1111 Like R_M32R_LO16, but referring to the GOT table entry for
1113 HOWTO (R_M32R_GOTPC_LO, /* type */
1115 2, /* size (0 = byte, 1 = short, 2 = long) */
1117 FALSE, /* pc_relative */
1119 complain_overflow_dont, /* complain_on_overflow */
1120 bfd_elf_generic_reloc, /* special_function */
1121 "R_M32R_GOTPC_LO", /* name */
1122 FALSE, /* partial_inplace */
1123 0x0000ffff, /* src_mask */
1124 0x0000ffff, /* dst_mask */
1125 TRUE), /* pcrel_offset */
1127 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1128 16, /* rightshift */
1129 2, /* size (0 = byte, 1 = short, 2 = long) */
1131 FALSE, /* pc_relative */
1133 complain_overflow_dont, /* complain_on_overflow */
1134 bfd_elf_generic_reloc, /* special_function */
1135 "R_M32R_GOTOFF_HI_ULO",/* name */
1136 FALSE, /* partial_inplace */
1137 0x0000ffff, /* src_mask */
1138 0x0000ffff, /* dst_mask */
1139 FALSE), /* pcrel_offset */
1141 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1142 16, /* rightshift */
1143 2, /* size (0 = byte, 1 = short, 2 = long) */
1145 FALSE, /* pc_relative */
1147 complain_overflow_dont, /* complain_on_overflow */
1148 bfd_elf_generic_reloc, /* special_function */
1149 "R_M32R_GOTOFF_HI_SLO",/* name */
1150 FALSE, /* partial_inplace */
1151 0x0000ffff, /* src_mask */
1152 0x0000ffff, /* dst_mask */
1153 FALSE), /* pcrel_offset */
1155 HOWTO (R_M32R_GOTOFF_LO, /* type */
1157 2, /* size (0 = byte, 1 = short, 2 = long) */
1159 FALSE, /* pc_relative */
1161 complain_overflow_dont, /* complain_on_overflow */
1162 bfd_elf_generic_reloc, /* special_function */
1163 "R_M32R_GOTOFF_LO", /* name */
1164 FALSE, /* partial_inplace */
1165 0x0000ffff, /* src_mask */
1166 0x0000ffff, /* dst_mask */
1167 FALSE), /* pcrel_offset */
1170 /* Map BFD reloc types to M32R ELF reloc types. */
1172 struct m32r_reloc_map
1174 bfd_reloc_code_real_type bfd_reloc_val;
1175 unsigned char elf_reloc_val;
1178 #ifdef USE_M32R_OLD_RELOC
1179 static const struct m32r_reloc_map m32r_reloc_map_old[] =
1181 { BFD_RELOC_NONE, R_M32R_NONE },
1182 { BFD_RELOC_16, R_M32R_16 },
1183 { BFD_RELOC_32, R_M32R_32 },
1184 { BFD_RELOC_M32R_24, R_M32R_24 },
1185 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1186 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1187 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1188 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1189 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1190 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1191 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1192 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1193 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1196 static const struct m32r_reloc_map m32r_reloc_map[] =
1198 { BFD_RELOC_NONE, R_M32R_NONE },
1199 { BFD_RELOC_16, R_M32R_16_RELA },
1200 { BFD_RELOC_32, R_M32R_32_RELA },
1201 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1202 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1203 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1204 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1205 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1206 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1207 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1208 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1209 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1210 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
1211 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
1213 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1214 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1215 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1216 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1217 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1218 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1219 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1220 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1221 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1222 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1223 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1224 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1225 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1226 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
1227 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1228 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1229 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
1233 static reloc_howto_type *
1234 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1235 bfd_reloc_code_real_type code)
1239 #ifdef USE_M32R_OLD_RELOC
1241 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1243 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1244 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1246 #else /* ! USE_M32R_OLD_RELOC */
1249 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1251 if (m32r_reloc_map[i].bfd_reloc_val == code)
1252 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
1258 static reloc_howto_type *
1259 bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1265 i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1267 if (m32r_elf_howto_table[i].name != NULL
1268 && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1269 return &m32r_elf_howto_table[i];
1274 /* Set the howto pointer for an M32R ELF reloc. */
1277 m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1279 Elf_Internal_Rela *dst)
1281 unsigned int r_type;
1283 r_type = ELF32_R_TYPE (dst->r_info);
1284 BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY);
1285 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1289 m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1291 Elf_Internal_Rela *dst)
1293 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1294 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1295 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1296 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1300 /* Given a BFD section, try to locate the corresponding ELF section
1304 _bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1308 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1310 *retval = SHN_M32R_SCOMMON;
1316 /* M32R ELF uses two common sections. One is the usual one, and the other
1317 is for small objects. All the small objects are kept together, and then
1318 referenced via one register, which yields faster assembler code. It is
1319 up to the compiler to emit an instruction to load the register with
1320 _SDA_BASE. This is what we use for the small common section. This
1321 approach is copied from elf32-mips.c. */
1322 static asection m32r_elf_scom_section;
1323 static asymbol m32r_elf_scom_symbol;
1324 static asymbol *m32r_elf_scom_symbol_ptr;
1326 /* Handle the special M32R section numbers that a symbol may use. */
1329 _bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
1331 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
1333 switch (elfsym->internal_elf_sym.st_shndx)
1335 case SHN_M32R_SCOMMON:
1336 if (m32r_elf_scom_section.name == NULL)
1338 /* Initialize the small common section. */
1339 m32r_elf_scom_section.name = ".scommon";
1340 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1341 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1342 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1343 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1344 m32r_elf_scom_symbol.name = ".scommon";
1345 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1346 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1347 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1349 asym->section = &m32r_elf_scom_section;
1350 asym->value = elfsym->internal_elf_sym.st_size;
1355 /* Hook called by the linker routine which adds symbols from an object
1356 file. We must handle the special M32R section numbers here.
1357 We also keep watching for whether we need to create the sdata special
1361 m32r_elf_add_symbol_hook (bfd *abfd,
1362 struct bfd_link_info *info,
1363 Elf_Internal_Sym *sym,
1365 flagword *flagsp ATTRIBUTE_UNUSED,
1369 if (! info->relocatable
1370 && (*namep)[0] == '_' && (*namep)[1] == 'S'
1371 && strcmp (*namep, "_SDA_BASE_") == 0
1372 && is_elf_hash_table (info->hash))
1374 /* This is simpler than using _bfd_elf_create_linker_section
1375 (our needs are simpler than ppc's needs). Also
1376 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1377 section already exists a new one is created that follows it which
1378 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1379 struct elf_link_hash_entry *h;
1380 struct bfd_link_hash_entry *bh;
1381 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1383 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
1386 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1387 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1389 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1393 bfd_set_section_alignment (abfd, s, 2);
1396 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1397 FALSE, FALSE, FALSE);
1399 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1400 && !(_bfd_generic_link_add_one_symbol (info,
1408 get_elf_backend_data (abfd)->collect,
1411 h = (struct elf_link_hash_entry *) bh;
1412 h->type = STT_OBJECT;
1415 switch (sym->st_shndx)
1417 case SHN_M32R_SCOMMON:
1418 *secp = bfd_make_section_old_way (abfd, ".scommon");
1419 (*secp)->flags |= SEC_IS_COMMON;
1420 *valp = sym->st_size;
1427 /* We have to figure out the SDA_BASE value, so that we can adjust the
1428 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1429 BFD. If we can't find it, we're stuck. We cache it in the ELF
1430 target data. We don't need to adjust the symbol value for an
1431 external symbol if we are producing relocatable output. */
1433 static bfd_reloc_status_type
1434 m32r_elf_final_sda_base (bfd *output_bfd,
1435 struct bfd_link_info *info,
1436 const char **error_message,
1439 if (elf_gp (output_bfd) == 0)
1441 struct bfd_link_hash_entry *h;
1443 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
1444 if (h != NULL && h->type == bfd_link_hash_defined)
1445 elf_gp (output_bfd) = (h->u.def.value
1446 + h->u.def.section->output_section->vma
1447 + h->u.def.section->output_offset);
1450 /* Only get the error once. */
1451 *psb = elf_gp (output_bfd) = 4;
1453 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1454 return bfd_reloc_dangerous;
1457 *psb = elf_gp (output_bfd);
1458 return bfd_reloc_ok;
1461 /* Return size of a PLT entry. */
1462 #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1464 /* The m32r linker needs to keep track of the number of relocs that it
1465 decides to copy in check_relocs for each symbol. This is so that
1466 it can discard PC relative relocs if it doesn't need them when
1467 linking with -Bsymbolic. We store the information in a field
1468 extending the regular ELF linker hash table. */
1470 /* This structure keeps track of the number of PC relative relocs we
1471 have copied for a given symbol. */
1473 struct elf_m32r_pcrel_relocs_copied
1476 struct elf_m32r_pcrel_relocs_copied *next;
1477 /* A section in dynobj. */
1479 /* Number of relocs copied in this section. */
1480 bfd_size_type count;
1483 /* The sh linker needs to keep track of the number of relocs that it
1484 decides to copy as dynamic relocs in check_relocs for each symbol.
1485 This is so that it can later discard them if they are found to be
1486 unnecessary. We store the information in a field extending the
1487 regular ELF linker hash table. */
1489 struct elf_m32r_dyn_relocs
1491 struct elf_m32r_dyn_relocs *next;
1493 /* The input section of the reloc. */
1496 /* Total number of relocs copied for the input section. */
1497 bfd_size_type count;
1499 /* Number of pc-relative relocs copied for the input section. */
1500 bfd_size_type pc_count;
1504 /* m32r ELF linker hash entry. */
1506 struct elf_m32r_link_hash_entry
1508 struct elf_link_hash_entry root;
1510 /* Track dynamic relocs copied for this symbol. */
1511 struct elf_m32r_dyn_relocs *dyn_relocs;
1514 /* m32r ELF linker hash table. */
1516 struct elf_m32r_link_hash_table
1518 struct elf_link_hash_table root;
1520 /* Short-cuts to get to dynamic linker sections. */
1529 /* Small local sym cache. */
1530 struct sym_cache sym_cache;
1533 /* Traverse an m32r ELF linker hash table. */
1535 #define m32r_elf_link_hash_traverse(table, func, info) \
1536 (elf_link_hash_traverse \
1538 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
1541 /* Get the m32r ELF linker hash table from a link_info structure. */
1543 #define m32r_elf_hash_table(p) \
1544 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1545 == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
1547 /* Create an entry in an m32r ELF linker hash table. */
1549 static struct bfd_hash_entry *
1550 m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1551 struct bfd_hash_table *table,
1554 struct elf_m32r_link_hash_entry *ret =
1555 (struct elf_m32r_link_hash_entry *) entry;
1557 /* Allocate the structure if it has not already been allocated by a
1560 ret = bfd_hash_allocate (table,
1561 sizeof (struct elf_m32r_link_hash_entry));
1565 /* Call the allocation method of the superclass. */
1566 ret = ((struct elf_m32r_link_hash_entry *)
1567 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1571 struct elf_m32r_link_hash_entry *eh;
1573 eh = (struct elf_m32r_link_hash_entry *) ret;
1574 eh->dyn_relocs = NULL;
1577 return (struct bfd_hash_entry *) ret;
1580 /* Create an m32r ELF linker hash table. */
1582 static struct bfd_link_hash_table *
1583 m32r_elf_link_hash_table_create (bfd *abfd)
1585 struct elf_m32r_link_hash_table *ret;
1586 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
1588 ret = bfd_zmalloc (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),
1601 return &ret->root.root;
1604 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1605 shortcuts to them in our hash table. */
1608 create_got_section (bfd *dynobj, struct bfd_link_info *info)
1610 struct elf_m32r_link_hash_table *htab;
1612 if (! _bfd_elf_create_got_section (dynobj, info))
1615 htab = m32r_elf_hash_table (info);
1619 htab->sgot = bfd_get_linker_section (dynobj, ".got");
1620 htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
1621 htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got");
1622 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
1628 /* Create dynamic sections when linking against a dynamic object. */
1631 m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
1633 struct elf_m32r_link_hash_table *htab;
1634 flagword flags, pltflags;
1636 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1637 int ptralign = 2; /* 32bit */
1639 htab = m32r_elf_hash_table (info);
1643 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1644 .rel[a].bss sections. */
1645 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1646 | SEC_LINKER_CREATED);
1649 pltflags |= SEC_CODE;
1650 if (bed->plt_not_loaded)
1651 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1652 if (bed->plt_readonly)
1653 pltflags |= SEC_READONLY;
1655 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
1658 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1661 if (bed->want_plt_sym)
1663 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1665 struct bfd_link_hash_entry *bh = NULL;
1666 struct elf_link_hash_entry *h;
1668 if (! (_bfd_generic_link_add_one_symbol
1669 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1670 (bfd_vma) 0, NULL, FALSE,
1671 get_elf_backend_data (abfd)->collect, &bh)))
1673 h = (struct elf_link_hash_entry *) bh;
1675 h->type = STT_OBJECT;
1676 htab->root.hplt = h;
1679 && ! bfd_elf_link_record_dynamic_symbol (info, h))
1683 s = bfd_make_section_anyway_with_flags (abfd,
1684 bed->default_use_rela_p
1685 ? ".rela.plt" : ".rel.plt",
1686 flags | SEC_READONLY);
1689 || ! bfd_set_section_alignment (abfd, s, ptralign))
1692 if (htab->sgot == NULL
1693 && ! create_got_section (abfd, info))
1696 if (bed->want_dynbss)
1698 /* The .dynbss section is a place to put symbols which are defined
1699 by dynamic objects, are referenced by regular objects, and are
1700 not functions. We must allocate space for them in the process
1701 image and use a R_*_COPY reloc to tell the dynamic linker to
1702 initialize them at run time. The linker script puts the .dynbss
1703 section into the .bss section of the final image. */
1704 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1705 SEC_ALLOC | SEC_LINKER_CREATED);
1709 /* The .rel[a].bss section holds copy relocs. This section is not
1710 normally needed. We need to create it here, though, so that the
1711 linker will map it to an output section. We can't just create it
1712 only if we need it, because we will not know whether we need it
1713 until we have seen all the input files, and the first time the
1714 main linker code calls BFD after examining all the input files
1715 (size_dynamic_sections) the input sections have already been
1716 mapped to the output sections. If the section turns out not to
1717 be needed, we can discard it later. We will never need this
1718 section when generating a shared object, since they do not use
1722 s = bfd_make_section_anyway_with_flags (abfd,
1723 (bed->default_use_rela_p
1724 ? ".rela.bss" : ".rel.bss"),
1725 flags | SEC_READONLY);
1728 || ! bfd_set_section_alignment (abfd, s, ptralign))
1736 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1739 m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
1740 struct elf_link_hash_entry *dir,
1741 struct elf_link_hash_entry *ind)
1743 struct elf_m32r_link_hash_entry * edir;
1744 struct elf_m32r_link_hash_entry * eind;
1746 edir = (struct elf_m32r_link_hash_entry *) dir;
1747 eind = (struct elf_m32r_link_hash_entry *) ind;
1749 if (eind->dyn_relocs != NULL)
1751 if (edir->dyn_relocs != NULL)
1753 struct elf_m32r_dyn_relocs **pp;
1754 struct elf_m32r_dyn_relocs *p;
1756 /* Add reloc counts against the indirect sym to the direct sym
1757 list. Merge any entries against the same section. */
1758 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
1760 struct elf_m32r_dyn_relocs *q;
1762 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1763 if (q->sec == p->sec)
1765 q->pc_count += p->pc_count;
1766 q->count += p->count;
1773 *pp = edir->dyn_relocs;
1776 edir->dyn_relocs = eind->dyn_relocs;
1777 eind->dyn_relocs = NULL;
1780 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1784 /* Adjust a symbol defined by a dynamic object and referenced by a
1785 regular object. The current definition is in some section of the
1786 dynamic object, but we're not including those sections. We have to
1787 change the definition to something the rest of the link can
1791 m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1792 struct elf_link_hash_entry *h)
1794 struct elf_m32r_link_hash_table *htab;
1795 struct elf_m32r_link_hash_entry *eh;
1796 struct elf_m32r_dyn_relocs *p;
1801 printf ("m32r_elf_adjust_dynamic_symbol()\n");
1804 dynobj = elf_hash_table (info)->dynobj;
1806 /* Make sure we know what is going on here. */
1807 BFD_ASSERT (dynobj != NULL
1809 || h->u.weakdef != NULL
1812 && !h->def_regular)));
1814 /* If this is a function, put it in the procedure linkage table. We
1815 will fill in the contents of the procedure linkage table later,
1816 when we know the address of the .got section. */
1817 if (h->type == STT_FUNC
1823 && h->root.type != bfd_link_hash_undefweak
1824 && h->root.type != bfd_link_hash_undefined)
1826 /* This case can occur if we saw a PLT reloc in an input
1827 file, but the symbol was never referred to by a dynamic
1828 object. In such a case, we don't actually need to build
1829 a procedure linkage table, and we can just do a PCREL
1831 h->plt.offset = (bfd_vma) -1;
1838 h->plt.offset = (bfd_vma) -1;
1840 /* If this is a weak symbol, and there is a real definition, the
1841 processor independent code will have arranged for us to see the
1842 real definition first, and we can just use the same value. */
1843 if (h->u.weakdef != NULL)
1845 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1846 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1847 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1848 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1852 /* This is a reference to a symbol defined by a dynamic object which
1853 is not a function. */
1855 /* If we are creating a shared library, we must presume that the
1856 only references to the symbol are via the global offset table.
1857 For such cases we need not do anything here; the relocations will
1858 be handled correctly by relocate_section. */
1862 /* If there are no references to this symbol that do not use the
1863 GOT, we don't need to generate a copy reloc. */
1864 if (!h->non_got_ref)
1867 /* If -z nocopyreloc was given, we won't generate them either. */
1868 if (info->nocopyreloc)
1874 eh = (struct elf_m32r_link_hash_entry *) h;
1875 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1877 s = p->sec->output_section;
1878 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1882 /* If we didn't find any dynamic relocs in sections which needs the
1883 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1891 /* We must allocate the symbol in our .dynbss section, which will
1892 become part of the .bss section of the executable. There will be
1893 an entry for this symbol in the .dynsym section. The dynamic
1894 object will contain position independent code, so all references
1895 from the dynamic object to this symbol will go through the global
1896 offset table. The dynamic linker will use the .dynsym entry to
1897 determine the address it must put in the global offset table, so
1898 both the dynamic object and the regular object will refer to the
1899 same memory location for the variable. */
1901 htab = m32r_elf_hash_table (info);
1906 BFD_ASSERT (s != NULL);
1908 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1909 to copy the initial value out of the dynamic object and into the
1910 runtime process image. We need to remember the offset into the
1911 .rela.bss section we are going to use. */
1912 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1916 srel = htab->srelbss;
1917 BFD_ASSERT (srel != NULL);
1918 srel->size += sizeof (Elf32_External_Rela);
1922 return _bfd_elf_adjust_dynamic_copy (h, s);
1925 /* Allocate space in .plt, .got and associated reloc sections for
1929 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1931 struct bfd_link_info *info;
1932 struct elf_m32r_link_hash_table *htab;
1933 struct elf_m32r_link_hash_entry *eh;
1934 struct elf_m32r_dyn_relocs *p;
1936 if (h->root.type == bfd_link_hash_indirect)
1939 info = (struct bfd_link_info *) inf;
1940 htab = m32r_elf_hash_table (info);
1944 eh = (struct elf_m32r_link_hash_entry *) h;
1946 if (htab->root.dynamic_sections_created
1947 && h->plt.refcount > 0)
1949 /* Make sure this symbol is output as a dynamic symbol.
1950 Undefined weak syms won't yet be marked as dynamic. */
1951 if (h->dynindx == -1
1952 && !h->forced_local)
1954 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1958 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
1960 asection *s = htab->splt;
1962 /* If this is the first .plt entry, make room for the special
1965 s->size += PLT_ENTRY_SIZE;
1967 h->plt.offset = s->size;
1969 /* If this symbol is not defined in a regular file, and we are
1970 not generating a shared library, then set the symbol to this
1971 location in the .plt. This is required to make function
1972 pointers compare as equal between the normal executable and
1973 the shared library. */
1977 h->root.u.def.section = s;
1978 h->root.u.def.value = h->plt.offset;
1981 /* Make room for this entry. */
1982 s->size += PLT_ENTRY_SIZE;
1984 /* We also need to make an entry in the .got.plt section, which
1985 will be placed in the .got section by the linker script. */
1986 htab->sgotplt->size += 4;
1988 /* We also need to make an entry in the .rel.plt section. */
1989 htab->srelplt->size += sizeof (Elf32_External_Rela);
1993 h->plt.offset = (bfd_vma) -1;
1999 h->plt.offset = (bfd_vma) -1;
2003 if (h->got.refcount > 0)
2008 /* Make sure this symbol is output as a dynamic symbol.
2009 Undefined weak syms won't yet be marked as dynamic. */
2010 if (h->dynindx == -1
2011 && !h->forced_local)
2013 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2019 h->got.offset = s->size;
2021 dyn = htab->root.dynamic_sections_created;
2022 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2023 htab->srelgot->size += sizeof (Elf32_External_Rela);
2026 h->got.offset = (bfd_vma) -1;
2028 if (eh->dyn_relocs == NULL)
2031 /* In the shared -Bsymbolic case, discard space allocated for
2032 dynamic pc-relative relocs against symbols which turn out to be
2033 defined in regular objects. For the normal shared case, discard
2034 space for pc-relative relocs that have become local due to symbol
2035 visibility changes. */
2043 struct elf_m32r_dyn_relocs **pp;
2045 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2047 p->count -= p->pc_count;
2056 /* Also discard relocs on undefined weak syms with non-default
2058 if (eh->dyn_relocs != NULL
2059 && h->root.type == bfd_link_hash_undefweak)
2061 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2062 eh->dyn_relocs = NULL;
2064 /* Make sure undefined weak symbols are output as a dynamic
2066 else if (h->dynindx == -1
2067 && !h->forced_local)
2069 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2076 /* For the non-shared case, discard space for relocs against
2077 symbols which turn out to need copy relocs or are not
2083 || (htab->root.dynamic_sections_created
2084 && (h->root.type == bfd_link_hash_undefweak
2085 || h->root.type == bfd_link_hash_undefined))))
2087 /* Make sure this symbol is output as a dynamic symbol.
2088 Undefined weak syms won't yet be marked as dynamic. */
2089 if (h->dynindx == -1
2090 && !h->forced_local)
2092 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2096 /* If that succeeded, we know we'll be keeping all the
2098 if (h->dynindx != -1)
2102 eh->dyn_relocs = NULL;
2107 /* Finally, allocate space. */
2108 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2110 asection *sreloc = elf_section_data (p->sec)->sreloc;
2111 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2117 /* Find any dynamic relocs that apply to read-only sections. */
2120 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2122 struct elf_m32r_link_hash_entry *eh;
2123 struct elf_m32r_dyn_relocs *p;
2125 eh = (struct elf_m32r_link_hash_entry *) h;
2126 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2128 asection *s = p->sec->output_section;
2130 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2132 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2134 info->flags |= DF_TEXTREL;
2136 /* Not an error, just cut short the traversal. */
2143 /* Set the sizes of the dynamic sections. */
2146 m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2147 struct bfd_link_info *info)
2149 struct elf_m32r_link_hash_table *htab;
2156 printf ("m32r_elf_size_dynamic_sections()\n");
2159 htab = m32r_elf_hash_table (info);
2163 dynobj = htab->root.dynobj;
2164 BFD_ASSERT (dynobj != NULL);
2166 if (htab->root.dynamic_sections_created)
2168 /* Set the contents of the .interp section to the interpreter. */
2169 if (info->executable)
2171 s = bfd_get_linker_section (dynobj, ".interp");
2172 BFD_ASSERT (s != NULL);
2173 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2174 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2178 /* Set up .got offsets for local syms, and space for local dynamic
2180 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2182 bfd_signed_vma *local_got;
2183 bfd_signed_vma *end_local_got;
2184 bfd_size_type locsymcount;
2185 Elf_Internal_Shdr *symtab_hdr;
2188 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2191 for (s = ibfd->sections; s != NULL; s = s->next)
2193 struct elf_m32r_dyn_relocs *p;
2195 for (p = ((struct elf_m32r_dyn_relocs *)
2196 elf_section_data (s)->local_dynrel);
2200 if (! bfd_is_abs_section (p->sec)
2201 && bfd_is_abs_section (p->sec->output_section))
2203 /* Input section has been discarded, either because
2204 it is a copy of a linkonce section or due to
2205 linker script /DISCARD/, so we'll be discarding
2208 else if (p->count != 0)
2210 srel = elf_section_data (p->sec)->sreloc;
2211 srel->size += p->count * sizeof (Elf32_External_Rela);
2212 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2213 info->flags |= DF_TEXTREL;
2218 local_got = elf_local_got_refcounts (ibfd);
2222 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2223 locsymcount = symtab_hdr->sh_info;
2224 end_local_got = local_got + locsymcount;
2226 srel = htab->srelgot;
2227 for (; local_got < end_local_got; ++local_got)
2231 *local_got = s->size;
2234 srel->size += sizeof (Elf32_External_Rela);
2237 *local_got = (bfd_vma) -1;
2241 /* Allocate global sym .plt and .got entries, and space for global
2242 sym dynamic relocs. */
2243 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2245 /* We now have determined the sizes of the various dynamic sections.
2246 Allocate memory for them. */
2248 for (s = dynobj->sections; s != NULL; s = s->next)
2250 if ((s->flags & SEC_LINKER_CREATED) == 0)
2255 || s == htab->sgotplt
2256 || s == htab->sdynbss)
2258 /* Strip this section if we don't need it; see the
2261 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2263 if (s->size != 0 && s != htab->srelplt)
2266 /* We use the reloc_count field as a counter if we need
2267 to copy relocs into the output file. */
2271 /* It's not one of our sections, so don't allocate space. */
2276 /* If we don't need this section, strip it from the
2277 output file. This is mostly to handle .rela.bss and
2278 .rela.plt. We must create both sections in
2279 create_dynamic_sections, because they must be created
2280 before the linker maps input sections to output
2281 sections. The linker does that before
2282 adjust_dynamic_symbol is called, and it is that
2283 function which decides whether anything needs to go
2284 into these sections. */
2285 s->flags |= SEC_EXCLUDE;
2289 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2292 /* Allocate memory for the section contents. We use bfd_zalloc
2293 here in case unused entries are not reclaimed before the
2294 section's contents are written out. This should not happen,
2295 but this way if it does, we get a R_M32R_NONE reloc instead
2297 s->contents = bfd_zalloc (dynobj, s->size);
2298 if (s->contents == NULL)
2302 if (htab->root.dynamic_sections_created)
2304 /* Add some entries to the .dynamic section. We fill in the
2305 values later, in m32r_elf_finish_dynamic_sections, but we
2306 must add the entries now so that we get the correct size for
2307 the .dynamic section. The DT_DEBUG entry is filled in by the
2308 dynamic linker and used by the debugger. */
2309 #define add_dynamic_entry(TAG, VAL) \
2310 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2312 if (info->executable)
2314 if (! add_dynamic_entry (DT_DEBUG, 0))
2318 if (htab->splt->size != 0)
2320 if (! add_dynamic_entry (DT_PLTGOT, 0)
2321 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2322 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2323 || ! add_dynamic_entry (DT_JMPREL, 0))
2329 if (! add_dynamic_entry (DT_RELA, 0)
2330 || ! add_dynamic_entry (DT_RELASZ, 0)
2331 || ! add_dynamic_entry (DT_RELAENT,
2332 sizeof (Elf32_External_Rela)))
2335 /* If any dynamic relocs apply to a read-only section,
2336 then we need a DT_TEXTREL entry. */
2337 if ((info->flags & DF_TEXTREL) == 0)
2338 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2341 if ((info->flags & DF_TEXTREL) != 0)
2343 if (! add_dynamic_entry (DT_TEXTREL, 0))
2348 #undef add_dynamic_entry
2353 /* Relocate an M32R/D ELF section.
2354 There is some attempt to make this function usable for many architectures,
2355 both for RELA and REL type relocs, if only to serve as a learning tool.
2357 The RELOCATE_SECTION function is called by the new ELF backend linker
2358 to handle the relocations for a section.
2360 The relocs are always passed as Rela structures; if the section
2361 actually uses Rel structures, the r_addend field will always be
2364 This function is responsible for adjust the section contents as
2365 necessary, and (if using Rela relocs and generating a
2366 relocatable output file) adjusting the reloc addend as
2369 This function does not have to worry about setting the reloc
2370 address or the reloc symbol index.
2372 LOCAL_SYMS is a pointer to the swapped in local symbols.
2374 LOCAL_SECTIONS is an array giving the section in the input file
2375 corresponding to the st_shndx field of each local symbol.
2377 The global hash table entry for the global symbols can be found
2378 via elf_sym_hashes (input_bfd).
2380 When generating relocatable output, this function must handle
2381 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2382 going to be the section symbol corresponding to the output
2383 section, which means that the addend must be adjusted
2387 m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2388 struct bfd_link_info *info,
2390 asection *input_section,
2392 Elf_Internal_Rela *relocs,
2393 Elf_Internal_Sym *local_syms,
2394 asection **local_sections)
2396 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2397 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2398 Elf_Internal_Rela *rel, *relend;
2399 /* Assume success. */
2400 bfd_boolean ret = TRUE;
2401 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2403 bfd_vma *local_got_offsets;
2404 asection *sgot, *splt, *sreloc;
2405 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2410 dynobj = htab->root.dynobj;
2411 local_got_offsets = elf_local_got_offsets (input_bfd);
2418 relend = relocs + input_section->reloc_count;
2419 for (; rel < relend; rel++)
2422 reloc_howto_type *howto;
2423 unsigned long r_symndx;
2424 struct elf_link_hash_entry *h;
2425 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2426 ensure it's zero (we use REL relocs, not RELA). Therefore this
2427 should be assigning zero to `addend', but for clarity we use
2429 bfd_vma addend = rel->r_addend;
2430 bfd_vma offset = rel->r_offset;
2432 Elf_Internal_Sym *sym;
2434 const char *sym_name;
2435 bfd_reloc_status_type r;
2436 const char *errmsg = NULL;
2437 bfd_boolean use_rel = FALSE;
2440 r_type = ELF32_R_TYPE (rel->r_info);
2441 if (r_type < 0 || r_type >= (int) R_M32R_max)
2443 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2446 bfd_set_error (bfd_error_bad_value);
2451 if ( r_type == R_M32R_GNU_VTENTRY
2452 || r_type == R_M32R_GNU_VTINHERIT
2453 || r_type == R_M32R_NONE
2454 || r_type == R_M32R_RELA_GNU_VTENTRY
2455 || r_type == R_M32R_RELA_GNU_VTINHERIT)
2458 if (r_type <= R_M32R_GNU_VTENTRY)
2461 howto = m32r_elf_howto_table + r_type;
2462 r_symndx = ELF32_R_SYM (rel->r_info);
2468 if (r_symndx < symtab_hdr->sh_info)
2471 sym = local_syms + r_symndx;
2472 sec = local_sections[r_symndx];
2473 sym_name = "<local symbol>";
2477 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2478 addend = rel->r_addend;
2482 relocation = (sec->output_section->vma
2483 + sec->output_offset
2489 /* External symbol. */
2492 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2493 while (h->root.type == bfd_link_hash_indirect
2494 || h->root.type == bfd_link_hash_warning)
2495 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2496 sym_name = h->root.root.string;
2498 if (h->root.type == bfd_link_hash_defined
2499 || h->root.type == bfd_link_hash_defweak)
2502 sec = h->root.u.def.section;
2504 dyn = htab->root.dynamic_sections_created;
2505 sec = h->root.u.def.section;
2506 if (r_type == R_M32R_GOTPC24
2507 || (r_type == R_M32R_GOTPC_HI_ULO
2508 || r_type == R_M32R_GOTPC_HI_SLO
2509 || r_type == R_M32R_GOTPC_LO)
2510 || (r_type == R_M32R_26_PLTREL
2511 && h->plt.offset != (bfd_vma) -1)
2512 || ((r_type == R_M32R_GOT24
2513 || r_type == R_M32R_GOT16_HI_ULO
2514 || r_type == R_M32R_GOT16_HI_SLO
2515 || r_type == R_M32R_GOT16_LO)
2516 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2519 || (! info->symbolic && h->dynindx != -1)
2520 || !h->def_regular))
2522 && ((! info->symbolic && h->dynindx != -1)
2524 && (((r_type == R_M32R_16_RELA
2525 || r_type == R_M32R_32_RELA
2526 || r_type == R_M32R_24_RELA
2527 || r_type == R_M32R_HI16_ULO_RELA
2528 || r_type == R_M32R_HI16_SLO_RELA
2529 || r_type == R_M32R_LO16_RELA)
2530 && !h->forced_local)
2531 || r_type == R_M32R_REL32
2532 || r_type == R_M32R_10_PCREL_RELA
2533 || r_type == R_M32R_18_PCREL_RELA
2534 || r_type == R_M32R_26_PCREL_RELA)
2535 && ((input_section->flags & SEC_ALLOC) != 0
2536 /* DWARF will emit R_M32R_16(24,32) relocations
2537 in its sections against symbols defined
2538 externally in shared libraries. We can't do
2539 anything with them here. */
2540 || ((input_section->flags & SEC_DEBUGGING) != 0
2541 && h->def_dynamic))))
2543 /* In these cases, we don't need the relocation
2544 value. We check specially because in some
2545 obscure cases sec->output_section will be NULL. */
2547 else if (sec->output_section != NULL)
2548 relocation = (h->root.u.def.value
2549 + sec->output_section->vma
2550 + sec->output_offset);
2551 else if (!info->relocatable
2552 && (_bfd_elf_section_offset (output_bfd, info,
2557 (*_bfd_error_handler)
2558 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2561 (long) rel->r_offset,
2563 h->root.root.string);
2566 else if (h->root.type == bfd_link_hash_undefweak)
2568 else if (info->unresolved_syms_in_objects == RM_IGNORE
2569 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2571 else if (!info->relocatable)
2573 if (! ((*info->callbacks->undefined_symbol)
2574 (info, h->root.root.string, input_bfd,
2575 input_section, offset,
2576 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2577 || ELF_ST_VISIBILITY (h->other)))))
2582 if (sec != NULL && discarded_section (sec))
2583 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2584 rel, 1, relend, howto, 0, contents);
2586 if (info->relocatable && !use_rel)
2588 /* This is a relocatable link. We don't have to change
2589 anything, unless the reloc is against a section symbol,
2590 in which case we have to adjust according to where the
2591 section symbol winds up in the output section. */
2592 if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2593 rel->r_addend += sec->output_offset;
2597 if (info->relocatable && use_rel)
2599 /* This is a relocatable link. We don't have to change
2600 anything, unless the reloc is against a section symbol,
2601 in which case we have to adjust according to where the
2602 section symbol winds up in the output section. */
2603 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2606 addend += sec->output_offset;
2608 /* If partial_inplace, we need to store any additional addend
2609 back in the section. */
2610 if (! howto->partial_inplace)
2612 /* ??? Here is a nice place to call a special_function
2614 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2615 r = _bfd_relocate_contents (howto, input_bfd,
2616 addend, contents + offset);
2619 Elf_Internal_Rela *lorel;
2621 /* We allow an arbitrary number of HI16 relocs before the
2622 LO16 reloc. This permits gcc to emit the HI and LO relocs
2624 for (lorel = rel + 1;
2626 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2627 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2631 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2633 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2638 r = _bfd_relocate_contents (howto, input_bfd,
2639 addend, contents + offset);
2644 /* Sanity check the address. */
2645 if (offset > high_address)
2647 r = bfd_reloc_outofrange;
2651 switch ((int) r_type)
2654 /* Relocation is relative to the start of the global offset
2655 table (for ld24 rx, #uimm24). eg access at label+addend
2657 ld24 rx. #label@GOTOFF + addend
2660 BFD_ASSERT (sgot != NULL);
2662 relocation = -(relocation - sgot->output_section->vma);
2663 rel->r_addend = -rel->r_addend;
2666 case R_M32R_GOTOFF_HI_ULO:
2667 case R_M32R_GOTOFF_HI_SLO:
2668 case R_M32R_GOTOFF_LO:
2669 BFD_ASSERT (sgot != NULL);
2671 relocation -= sgot->output_section->vma;
2673 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2674 && ((relocation + rel->r_addend) & 0x8000))
2675 rel->r_addend += 0x10000;
2678 case R_M32R_GOTPC24:
2679 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2680 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2682 relocation = sgot->output_section->vma;
2685 case R_M32R_GOTPC_HI_ULO:
2686 case R_M32R_GOTPC_HI_SLO:
2687 case R_M32R_GOTPC_LO:
2689 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2691 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2692 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2695 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2696 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2698 relocation = sgot->output_section->vma;
2699 relocation -= (input_section->output_section->vma
2700 + input_section->output_offset
2702 if ((r_type == R_M32R_GOTPC_HI_SLO)
2703 && ((relocation + rel->r_addend) & 0x8000))
2704 rel->r_addend += 0x10000;
2708 case R_M32R_GOT16_HI_ULO:
2709 case R_M32R_GOT16_HI_SLO:
2710 case R_M32R_GOT16_LO:
2713 /* Relocation is to the entry for this symbol in the global
2715 BFD_ASSERT (sgot != NULL);
2722 off = h->got.offset;
2723 BFD_ASSERT (off != (bfd_vma) -1);
2725 dyn = htab->root.dynamic_sections_created;
2726 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2733 /* This is actually a static link, or it is a
2734 -Bsymbolic link and the symbol is defined
2735 locally, or the symbol was forced to be local
2736 because of a version file. We must initialize
2737 this entry in the global offset table. Since the
2738 offset must always be a multiple of 4, we use the
2739 least significant bit to record whether we have
2740 initialized it already.
2742 When doing a dynamic link, we create a .rela.got
2743 relocation entry to initialize the value. This
2744 is done in the finish_dynamic_symbol routine. */
2749 bfd_put_32 (output_bfd, relocation,
2750 sgot->contents + off);
2755 relocation = sgot->output_offset + off;
2762 BFD_ASSERT (local_got_offsets != NULL
2763 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2765 off = local_got_offsets[r_symndx];
2767 /* The offset must always be a multiple of 4. We use
2768 the least significant bit to record whether we have
2769 already processed this entry. */
2774 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2779 Elf_Internal_Rela outrel;
2781 /* We need to generate a R_M32R_RELATIVE reloc
2782 for the dynamic linker. */
2783 srelgot = bfd_get_linker_section (dynobj,
2785 BFD_ASSERT (srelgot != NULL);
2787 outrel.r_offset = (sgot->output_section->vma
2788 + sgot->output_offset
2790 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2791 outrel.r_addend = relocation;
2792 loc = srelgot->contents;
2793 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2794 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2795 ++srelgot->reloc_count;
2798 local_got_offsets[r_symndx] |= 1;
2801 relocation = sgot->output_offset + off;
2803 if ((r_type == R_M32R_GOT16_HI_SLO)
2804 && ((relocation + rel->r_addend) & 0x8000))
2805 rel->r_addend += 0x10000;
2809 case R_M32R_26_PLTREL:
2810 /* Relocation is to the entry for this symbol in the
2811 procedure linkage table. */
2813 /* The native assembler will generate a 26_PLTREL reloc
2814 for a local symbol if you assemble a call from one
2815 section to another when using -K pic. */
2819 if (h->forced_local)
2822 if (h->plt.offset == (bfd_vma) -1)
2823 /* We didn't make a PLT entry for this symbol. This
2824 happens when statically linking PIC code, or when
2825 using -Bsymbolic. */
2828 relocation = (splt->output_section->vma
2829 + splt->output_offset
2833 case R_M32R_HI16_SLO_RELA:
2834 if ((relocation + rel->r_addend) & 0x8000)
2835 rel->r_addend += 0x10000;
2838 case R_M32R_16_RELA:
2839 case R_M32R_24_RELA:
2840 case R_M32R_32_RELA:
2842 case R_M32R_10_PCREL_RELA:
2843 case R_M32R_18_PCREL_RELA:
2844 case R_M32R_26_PCREL_RELA:
2845 case R_M32R_HI16_ULO_RELA:
2846 case R_M32R_LO16_RELA:
2848 && r_symndx != STN_UNDEF
2849 && (input_section->flags & SEC_ALLOC) != 0
2850 && (( r_type != R_M32R_10_PCREL_RELA
2851 && r_type != R_M32R_18_PCREL_RELA
2852 && r_type != R_M32R_26_PCREL_RELA
2853 && r_type != R_M32R_REL32)
2856 && (! info->symbolic
2857 || !h->def_regular))))
2859 Elf_Internal_Rela outrel;
2860 bfd_boolean skip, relocate;
2863 /* When generating a shared object, these relocations
2864 are copied into the output file to be resolved at run
2868 sreloc = _bfd_elf_get_dynamic_reloc_section
2869 (input_bfd, input_section, /*rela?*/ TRUE);
2877 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2881 if (outrel.r_offset == (bfd_vma) -1)
2883 else if (outrel.r_offset == (bfd_vma) -2)
2884 skip = relocate = TRUE;
2885 outrel.r_offset += (input_section->output_section->vma
2886 + input_section->output_offset);
2889 memset (&outrel, 0, sizeof outrel);
2890 else if ( r_type == R_M32R_10_PCREL_RELA
2891 || r_type == R_M32R_18_PCREL_RELA
2892 || r_type == R_M32R_26_PCREL_RELA
2893 || r_type == R_M32R_REL32)
2895 BFD_ASSERT (h != NULL && h->dynindx != -1);
2896 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2897 outrel.r_addend = rel->r_addend;
2901 /* h->dynindx may be -1 if this symbol was marked to
2904 || ((info->symbolic || h->dynindx == -1)
2908 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2909 outrel.r_addend = relocation + rel->r_addend;
2913 BFD_ASSERT (h->dynindx != -1);
2914 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2915 outrel.r_addend = relocation + rel->r_addend;
2919 loc = sreloc->contents;
2920 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2921 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2922 ++sreloc->reloc_count;
2924 /* If this reloc is against an external symbol, we do
2925 not want to fiddle with the addend. Otherwise, we
2926 need to include the symbol value so that it becomes
2927 an addend for the dynamic reloc. */
2932 else if (r_type != R_M32R_10_PCREL_RELA)
2936 case (int) R_M32R_10_PCREL :
2937 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2939 sec, relocation, addend);
2942 case (int) R_M32R_HI16_SLO :
2943 case (int) R_M32R_HI16_ULO :
2945 Elf_Internal_Rela *lorel;
2947 /* We allow an arbitrary number of HI16 relocs before the
2948 LO16 reloc. This permits gcc to emit the HI and LO relocs
2950 for (lorel = rel + 1;
2952 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2953 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2957 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2959 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2960 contents, relocation + addend);
2964 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2966 relocation, addend);
2971 case (int) R_M32R_SDA16_RELA:
2972 case (int) R_M32R_SDA16 :
2976 BFD_ASSERT (sec != NULL);
2977 name = bfd_get_section_name (sec->owner, sec);
2979 if ( strcmp (name, ".sdata") == 0
2980 || strcmp (name, ".sbss") == 0
2981 || strcmp (name, ".scommon") == 0)
2984 bfd *out_bfd = sec->output_section->owner;
2986 r = m32r_elf_final_sda_base (out_bfd, info,
2989 if (r != bfd_reloc_ok)
2995 /* At this point `relocation' contains the object's
2997 relocation -= sda_base;
2998 /* Now it contains the offset from _SDA_BASE_. */
3002 (*_bfd_error_handler)
3003 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3007 m32r_elf_howto_table[(int) r_type].name);
3008 /*bfd_set_error (bfd_error_bad_value); ??? why? */
3015 default : /* OLD_M32R_RELOC */
3017 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3019 relocation, addend);
3023 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3024 contents, rel->r_offset,
3025 relocation, rel->r_addend);
3031 if (r != bfd_reloc_ok)
3033 /* FIXME: This should be generic enough to go in a utility. */
3037 name = h->root.root.string;
3040 name = (bfd_elf_string_from_elf_section
3041 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3042 if (name == NULL || *name == '\0')
3043 name = bfd_section_name (input_bfd, sec);
3051 case bfd_reloc_overflow:
3052 if (! ((*info->callbacks->reloc_overflow)
3053 (info, (h ? &h->root : NULL), name, howto->name,
3054 (bfd_vma) 0, input_bfd, input_section, offset)))
3058 case bfd_reloc_undefined:
3059 if (! ((*info->callbacks->undefined_symbol)
3060 (info, name, input_bfd, input_section,
3065 case bfd_reloc_outofrange:
3066 errmsg = _("internal error: out of range error");
3069 case bfd_reloc_notsupported:
3070 errmsg = _("internal error: unsupported relocation error");
3073 case bfd_reloc_dangerous:
3074 errmsg = _("internal error: dangerous error");
3078 errmsg = _("internal error: unknown error");
3082 if (!((*info->callbacks->warning)
3083 (info, errmsg, name, input_bfd, input_section,
3094 /* Finish up dynamic symbol handling. We set the contents of various
3095 dynamic sections here. */
3098 m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3099 struct bfd_link_info *info,
3100 struct elf_link_hash_entry *h,
3101 Elf_Internal_Sym *sym)
3103 struct elf_m32r_link_hash_table *htab;
3107 printf ("m32r_elf_finish_dynamic_symbol()\n");
3110 htab = m32r_elf_hash_table (info);
3114 if (h->plt.offset != (bfd_vma) -1)
3122 Elf_Internal_Rela rela;
3124 /* This symbol has an entry in the procedure linkage table. Set
3127 BFD_ASSERT (h->dynindx != -1);
3130 sgot = htab->sgotplt;
3131 srela = htab->srelplt;
3132 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3134 /* Get the index in the procedure linkage table which
3135 corresponds to this symbol. This is the index of this symbol
3136 in all the symbols for which we are making plt entries. The
3137 first entry in the procedure linkage table is reserved. */
3138 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3140 /* Get the offset into the .got table of the entry that
3141 corresponds to this function. Each .got entry is 4 bytes.
3142 The first three are reserved. */
3143 got_offset = (plt_index + 3) * 4;
3145 /* Fill in the entry in the procedure linkage table. */
3148 bfd_put_32 (output_bfd,
3150 + (((sgot->output_section->vma
3151 + sgot->output_offset
3152 + got_offset) >> 16) & 0xffff)),
3153 splt->contents + h->plt.offset);
3154 bfd_put_32 (output_bfd,
3156 + ((sgot->output_section->vma
3157 + sgot->output_offset
3158 + got_offset) & 0xffff)),
3159 splt->contents + h->plt.offset + 4);
3160 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3161 splt->contents + h->plt.offset + 8);
3162 bfd_put_32 (output_bfd,
3164 + plt_index * sizeof (Elf32_External_Rela)),
3165 splt->contents + h->plt.offset + 12);
3166 bfd_put_32 (output_bfd,
3168 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3169 splt->contents + h->plt.offset + 16);
3173 bfd_put_32 (output_bfd,
3174 PLT_ENTRY_WORD0 + got_offset,
3175 splt->contents + h->plt.offset);
3176 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3177 splt->contents + h->plt.offset + 4);
3178 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3179 splt->contents + h->plt.offset + 8);
3180 bfd_put_32 (output_bfd,
3182 + plt_index * sizeof (Elf32_External_Rela)),
3183 splt->contents + h->plt.offset + 12);
3184 bfd_put_32 (output_bfd,
3186 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3187 splt->contents + h->plt.offset + 16);
3190 /* Fill in the entry in the global offset table. */
3191 bfd_put_32 (output_bfd,
3192 (splt->output_section->vma
3193 + splt->output_offset
3195 + 12), /* same offset */
3196 sgot->contents + got_offset);
3198 /* Fill in the entry in the .rela.plt section. */
3199 rela.r_offset = (sgot->output_section->vma
3200 + sgot->output_offset
3202 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3204 loc = srela->contents;
3205 loc += plt_index * sizeof (Elf32_External_Rela);
3206 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3208 if (!h->def_regular)
3210 /* Mark the symbol as undefined, rather than as defined in
3211 the .plt section. Leave the value alone. */
3212 sym->st_shndx = SHN_UNDEF;
3216 if (h->got.offset != (bfd_vma) -1)
3220 Elf_Internal_Rela rela;
3222 /* This symbol has an entry in the global offset table. Set it
3226 srela = htab->srelgot;
3227 BFD_ASSERT (sgot != NULL && srela != NULL);
3229 rela.r_offset = (sgot->output_section->vma
3230 + sgot->output_offset
3231 + (h->got.offset &~ 1));
3233 /* If this is a -Bsymbolic link, and the symbol is defined
3234 locally, we just want to emit a RELATIVE reloc. Likewise if
3235 the symbol was forced to be local because of a version file.
3236 The entry in the global offset table will already have been
3237 initialized in the relocate_section function. */
3244 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3245 rela.r_addend = (h->root.u.def.value
3246 + h->root.u.def.section->output_section->vma
3247 + h->root.u.def.section->output_offset);
3251 BFD_ASSERT ((h->got.offset & 1) == 0);
3252 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3253 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3257 loc = srela->contents;
3258 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3259 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3260 ++srela->reloc_count;
3266 Elf_Internal_Rela rela;
3268 /* This symbols needs a copy reloc. Set it up. */
3270 BFD_ASSERT (h->dynindx != -1
3271 && (h->root.type == bfd_link_hash_defined
3272 || h->root.type == bfd_link_hash_defweak));
3274 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
3275 BFD_ASSERT (s != NULL);
3277 rela.r_offset = (h->root.u.def.value
3278 + h->root.u.def.section->output_section->vma
3279 + h->root.u.def.section->output_offset);
3280 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3283 loc += s->reloc_count * sizeof (Elf32_External_Rela);
3284 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3288 /* Mark some specially defined symbols as absolute. */
3289 if (h == htab->root.hdynamic || h == htab->root.hgot)
3290 sym->st_shndx = SHN_ABS;
3296 /* Finish up the dynamic sections. */
3299 m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3300 struct bfd_link_info *info)
3302 struct elf_m32r_link_hash_table *htab;
3308 printf ("m32r_elf_finish_dynamic_sections()\n");
3311 htab = m32r_elf_hash_table (info);
3315 dynobj = htab->root.dynobj;
3317 sgot = htab->sgotplt;
3318 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3320 if (htab->root.dynamic_sections_created)
3323 Elf32_External_Dyn *dyncon, *dynconend;
3325 BFD_ASSERT (sgot != NULL && sdyn != NULL);
3327 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3328 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3330 for (; dyncon < dynconend; dyncon++)
3332 Elf_Internal_Dyn dyn;
3335 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3343 s = htab->sgot->output_section;
3346 s = htab->srelplt->output_section;
3348 BFD_ASSERT (s != NULL);
3349 dyn.d_un.d_ptr = s->vma;
3350 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3354 s = htab->srelplt->output_section;
3355 BFD_ASSERT (s != NULL);
3356 dyn.d_un.d_val = s->size;
3357 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3361 /* My reading of the SVR4 ABI indicates that the
3362 procedure linkage table relocs (DT_JMPREL) should be
3363 included in the overall relocs (DT_RELA). This is
3364 what Solaris does. However, UnixWare can not handle
3365 that case. Therefore, we override the DT_RELASZ entry
3366 here to make it not include the JMPREL relocs. Since
3367 the linker script arranges for .rela.plt to follow all
3368 other relocation sections, we don't have to worry
3369 about changing the DT_RELA entry. */
3370 if (htab->srelplt != NULL)
3372 s = htab->srelplt->output_section;
3373 dyn.d_un.d_val -= s->size;
3375 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3380 /* Fill in the first entry in the procedure linkage table. */
3382 if (splt && splt->size > 0)
3386 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3387 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3388 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3389 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3390 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3395 /* addr = .got + 4 */
3396 addr = sgot->output_section->vma + sgot->output_offset + 4;
3397 bfd_put_32 (output_bfd,
3398 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3400 bfd_put_32 (output_bfd,
3401 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3402 splt->contents + 4);
3403 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3404 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3405 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3408 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3413 /* Fill in the first three entries in the global offset table. */
3414 if (sgot && sgot->size > 0)
3417 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3419 bfd_put_32 (output_bfd,
3420 sdyn->output_section->vma + sdyn->output_offset,
3422 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3423 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3425 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3432 /* Set the right machine number. */
3435 m32r_elf_object_p (bfd *abfd)
3437 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3440 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
3441 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3442 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3447 /* Store the machine number in the flags field. */
3450 m32r_elf_final_write_processing (bfd *abfd,
3451 bfd_boolean linker ATTRIBUTE_UNUSED)
3455 switch (bfd_get_mach (abfd))
3458 case bfd_mach_m32r: val = E_M32R_ARCH; break;
3459 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3460 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3463 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3464 elf_elfheader (abfd)->e_flags |= val;
3467 /* Function to keep M32R specific file flags. */
3470 m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3472 BFD_ASSERT (!elf_flags_init (abfd)
3473 || elf_elfheader (abfd)->e_flags == flags);
3475 elf_elfheader (abfd)->e_flags = flags;
3476 elf_flags_init (abfd) = TRUE;
3480 /* Merge backend specific data from an object file to the output
3481 object file when linking. */
3484 m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3489 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3490 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3493 in_flags = elf_elfheader (ibfd)->e_flags;
3494 out_flags = elf_elfheader (obfd)->e_flags;
3496 if (! elf_flags_init (obfd))
3498 /* If the input is the default architecture then do not
3499 bother setting the flags for the output architecture,
3500 instead allow future merges to do this. If no future
3501 merges ever set these flags then they will retain their
3502 unitialised values, which surprise surprise, correspond
3503 to the default values. */
3504 if (bfd_get_arch_info (ibfd)->the_default)
3507 elf_flags_init (obfd) = TRUE;
3508 elf_elfheader (obfd)->e_flags = in_flags;
3510 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3511 && bfd_get_arch_info (obfd)->the_default)
3512 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3513 bfd_get_mach (ibfd));
3518 /* Check flag compatibility. */
3519 if (in_flags == out_flags)
3522 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3524 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3525 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3526 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
3528 (*_bfd_error_handler)
3529 (_("%B: Instruction set mismatch with previous modules"), ibfd);
3531 bfd_set_error (bfd_error_bad_value);
3539 /* Display the flags field. */
3542 m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3544 FILE * file = (FILE *) ptr;
3546 BFD_ASSERT (abfd != NULL && ptr != NULL);
3548 _bfd_elf_print_private_bfd_data (abfd, ptr);
3550 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3552 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3555 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
3556 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3557 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3566 m32r_elf_gc_mark_hook (asection *sec,
3567 struct bfd_link_info *info,
3568 Elf_Internal_Rela *rel,
3569 struct elf_link_hash_entry *h,
3570 Elf_Internal_Sym *sym)
3573 switch (ELF32_R_TYPE (rel->r_info))
3575 case R_M32R_GNU_VTINHERIT:
3576 case R_M32R_GNU_VTENTRY:
3577 case R_M32R_RELA_GNU_VTINHERIT:
3578 case R_M32R_RELA_GNU_VTENTRY:
3582 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3586 m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3587 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3588 asection *sec ATTRIBUTE_UNUSED,
3589 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3591 /* Update the got entry reference counts for the section being removed. */
3592 Elf_Internal_Shdr *symtab_hdr;
3593 struct elf_link_hash_entry **sym_hashes;
3594 bfd_signed_vma *local_got_refcounts;
3595 const Elf_Internal_Rela *rel, *relend;
3597 if (info->relocatable)
3600 elf_section_data (sec)->local_dynrel = NULL;
3602 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3603 sym_hashes = elf_sym_hashes (abfd);
3604 local_got_refcounts = elf_local_got_refcounts (abfd);
3606 relend = relocs + sec->reloc_count;
3607 for (rel = relocs; rel < relend; rel++)
3609 unsigned long r_symndx;
3610 struct elf_link_hash_entry *h = NULL;
3612 r_symndx = ELF32_R_SYM (rel->r_info);
3613 if (r_symndx >= symtab_hdr->sh_info)
3615 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3616 while (h->root.type == bfd_link_hash_indirect
3617 || h->root.type == bfd_link_hash_warning)
3618 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3621 switch (ELF32_R_TYPE (rel->r_info))
3623 case R_M32R_GOT16_HI_ULO:
3624 case R_M32R_GOT16_HI_SLO:
3625 case R_M32R_GOT16_LO:
3627 case R_M32R_GOTOFF_HI_ULO:
3628 case R_M32R_GOTOFF_HI_SLO:
3629 case R_M32R_GOTOFF_LO:
3631 case R_M32R_GOTPC_HI_ULO:
3632 case R_M32R_GOTPC_HI_SLO:
3633 case R_M32R_GOTPC_LO:
3634 case R_M32R_GOTPC24:
3637 if (h->got.refcount > 0)
3642 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3643 local_got_refcounts[r_symndx]--;
3647 case R_M32R_16_RELA:
3648 case R_M32R_24_RELA:
3649 case R_M32R_32_RELA:
3651 case R_M32R_HI16_ULO_RELA:
3652 case R_M32R_HI16_SLO_RELA:
3653 case R_M32R_LO16_RELA:
3654 case R_M32R_SDA16_RELA:
3655 case R_M32R_10_PCREL_RELA:
3656 case R_M32R_18_PCREL_RELA:
3657 case R_M32R_26_PCREL_RELA:
3660 struct elf_m32r_link_hash_entry *eh;
3661 struct elf_m32r_dyn_relocs **pp;
3662 struct elf_m32r_dyn_relocs *p;
3664 if (!info->shared && h->plt.refcount > 0)
3665 h->plt.refcount -= 1;
3667 eh = (struct elf_m32r_link_hash_entry *) h;
3669 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3672 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3673 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3674 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3675 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3685 case R_M32R_26_PLTREL:
3688 if (h->plt.refcount > 0)
3701 /* Look through the relocs for a section during the first phase.
3702 Since we don't do .gots or .plts, we just need to consider the
3703 virtual table relocs for gc. */
3706 m32r_elf_check_relocs (bfd *abfd,
3707 struct bfd_link_info *info,
3709 const Elf_Internal_Rela *relocs)
3711 Elf_Internal_Shdr *symtab_hdr;
3712 struct elf_link_hash_entry **sym_hashes;
3713 const Elf_Internal_Rela *rel;
3714 const Elf_Internal_Rela *rel_end;
3715 struct elf_m32r_link_hash_table *htab;
3719 if (info->relocatable)
3723 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3724 sym_hashes = elf_sym_hashes (abfd);
3726 htab = m32r_elf_hash_table (info);
3730 dynobj = htab->root.dynobj;
3732 rel_end = relocs + sec->reloc_count;
3733 for (rel = relocs; rel < rel_end; rel++)
3736 struct elf_link_hash_entry *h;
3737 unsigned long r_symndx;
3739 r_symndx = ELF32_R_SYM (rel->r_info);
3740 r_type = ELF32_R_TYPE (rel->r_info);
3741 if (r_symndx < symtab_hdr->sh_info)
3745 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3746 while (h->root.type == bfd_link_hash_indirect
3747 || h->root.type == bfd_link_hash_warning)
3748 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3751 /* Some relocs require a global offset table. */
3752 if (htab->sgot == NULL)
3756 case R_M32R_GOT16_HI_ULO:
3757 case R_M32R_GOT16_HI_SLO:
3759 case R_M32R_GOTOFF_HI_ULO:
3760 case R_M32R_GOTOFF_HI_SLO:
3761 case R_M32R_GOTOFF_LO:
3762 case R_M32R_GOT16_LO:
3763 case R_M32R_GOTPC24:
3764 case R_M32R_GOTPC_HI_ULO:
3765 case R_M32R_GOTPC_HI_SLO:
3766 case R_M32R_GOTPC_LO:
3769 htab->root.dynobj = dynobj = abfd;
3770 if (! create_got_section (dynobj, info))
3781 case R_M32R_GOT16_HI_ULO:
3782 case R_M32R_GOT16_HI_SLO:
3783 case R_M32R_GOT16_LO:
3787 h->got.refcount += 1;
3790 bfd_signed_vma *local_got_refcounts;
3792 /* This is a global offset table entry for a local
3794 local_got_refcounts = elf_local_got_refcounts (abfd);
3795 if (local_got_refcounts == NULL)
3799 size = symtab_hdr->sh_info;
3800 size *= sizeof (bfd_signed_vma);
3801 local_got_refcounts = bfd_zalloc (abfd, size);
3802 if (local_got_refcounts == NULL)
3804 elf_local_got_refcounts (abfd) = local_got_refcounts;
3806 local_got_refcounts[r_symndx] += 1;
3810 case R_M32R_26_PLTREL:
3811 /* This symbol requires a procedure linkage table entry. We
3812 actually build the entry in adjust_dynamic_symbol,
3813 because this might be a case of linking PIC code without
3814 linking in any dynamic objects, in which case we don't
3815 need to generate a procedure linkage table after all. */
3817 /* If this is a local symbol, we resolve it directly without
3818 creating a procedure linkage table entry. */
3822 if (h->forced_local)
3826 h->plt.refcount += 1;
3829 case R_M32R_16_RELA:
3830 case R_M32R_24_RELA:
3831 case R_M32R_32_RELA:
3833 case R_M32R_HI16_ULO_RELA:
3834 case R_M32R_HI16_SLO_RELA:
3835 case R_M32R_LO16_RELA:
3836 case R_M32R_SDA16_RELA:
3837 case R_M32R_10_PCREL_RELA:
3838 case R_M32R_18_PCREL_RELA:
3839 case R_M32R_26_PCREL_RELA:
3841 if (h != NULL && !info->shared)
3844 h->plt.refcount += 1;
3847 /* If we are creating a shared library, and this is a reloc
3848 against a global symbol, or a non PC relative reloc
3849 against a local symbol, then we need to copy the reloc
3850 into the shared library. However, if we are linking with
3851 -Bsymbolic, we do not need to copy a reloc against a
3852 global symbol which is defined in an object we are
3853 including in the link (i.e., DEF_REGULAR is set). At
3854 this point we have not seen all the input files, so it is
3855 possible that DEF_REGULAR is not set now but will be set
3856 later (it is never cleared). We account for that
3857 possibility below by storing information in the
3858 dyn_relocs field of the hash table entry. A similar
3859 situation occurs when creating shared libraries and symbol
3860 visibility changes render the symbol local.
3862 If on the other hand, we are creating an executable, we
3863 may need to keep relocations for symbols satisfied by a
3864 dynamic library if we manage to avoid copy relocs for the
3867 && (sec->flags & SEC_ALLOC) != 0
3868 && (( r_type != R_M32R_26_PCREL_RELA
3869 && r_type != R_M32R_18_PCREL_RELA
3870 && r_type != R_M32R_10_PCREL_RELA
3871 && r_type != R_M32R_REL32)
3873 && (! info->symbolic
3874 || h->root.type == bfd_link_hash_defweak
3875 || !h->def_regular))))
3877 && (sec->flags & SEC_ALLOC) != 0
3879 && (h->root.type == bfd_link_hash_defweak
3880 || !h->def_regular)))
3882 struct elf_m32r_dyn_relocs *p;
3883 struct elf_m32r_dyn_relocs **head;
3886 htab->root.dynobj = dynobj = abfd;
3888 /* When creating a shared object, we must copy these
3889 relocs into the output file. We create a reloc
3890 section in dynobj and make room for the reloc. */
3893 sreloc = _bfd_elf_make_dynamic_reloc_section
3894 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3900 /* If this is a global symbol, we count the number of
3901 relocations we need for this symbol. */
3903 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3906 /* Track dynamic relocs needed for local syms too. */
3909 Elf_Internal_Sym *isym;
3911 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3916 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3920 vpp = &elf_section_data (s)->local_dynrel;
3921 head = (struct elf_m32r_dyn_relocs **) vpp;
3925 if (p == NULL || p->sec != sec)
3927 bfd_size_type amt = sizeof (*p);
3929 p = bfd_alloc (dynobj, amt);
3940 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3941 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3942 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3943 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3948 /* This relocation describes the C++ object vtable hierarchy.
3949 Reconstruct it for later use during GC. */
3950 case R_M32R_RELA_GNU_VTINHERIT:
3951 case R_M32R_GNU_VTINHERIT:
3952 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3956 /* This relocation describes which C++ vtable entries are actually
3957 used. Record for later use during GC. */
3958 case R_M32R_GNU_VTENTRY:
3959 BFD_ASSERT (h != NULL);
3961 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
3964 case R_M32R_RELA_GNU_VTENTRY:
3965 BFD_ASSERT (h != NULL);
3967 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3976 static const struct bfd_elf_special_section m32r_elf_special_sections[] =
3978 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3979 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3980 { NULL, 0, 0, 0, 0 }
3983 static enum elf_reloc_type_class
3984 m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
3986 switch ((int) ELF32_R_TYPE (rela->r_info))
3988 case R_M32R_RELATIVE: return reloc_class_relative;
3989 case R_M32R_JMP_SLOT: return reloc_class_plt;
3990 case R_M32R_COPY: return reloc_class_copy;
3991 default: return reloc_class_normal;
3995 #define ELF_ARCH bfd_arch_m32r
3996 #define ELF_TARGET_ID M32R_ELF_DATA
3997 #define ELF_MACHINE_CODE EM_M32R
3998 #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
3999 #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
4001 #define TARGET_BIG_SYM bfd_elf32_m32r_vec
4002 #define TARGET_BIG_NAME "elf32-m32r"
4003 #define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4004 #define TARGET_LITTLE_NAME "elf32-m32rle"
4006 #define elf_info_to_howto m32r_info_to_howto
4007 #define elf_info_to_howto_rel m32r_info_to_howto_rel
4008 #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4009 #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4010 #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4011 #define elf_backend_relocate_section m32r_elf_relocate_section
4012 #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4013 #define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4014 #define elf_backend_check_relocs m32r_elf_check_relocs
4016 #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4017 #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4018 #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4019 #define elf_backend_omit_section_dynsym \
4020 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4021 #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4022 #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4023 #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4024 #define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4025 #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4027 #define elf_backend_can_gc_sections 1
4029 #define elf_backend_rela_normal 1
4031 #define elf_backend_can_refcount 1
4032 #define elf_backend_want_got_plt 1
4033 #define elf_backend_plt_readonly 1
4034 #define elf_backend_want_plt_sym 0
4035 #define elf_backend_got_header_size 12
4037 #define elf_backend_may_use_rel_p 1
4038 #ifdef USE_M32R_OLD_RELOC
4039 #define elf_backend_default_use_rela_p 0
4040 #define elf_backend_may_use_rela_p 0
4042 #define elf_backend_default_use_rela_p 1
4043 #define elf_backend_may_use_rela_p 1
4046 #define elf_backend_object_p m32r_elf_object_p
4047 #define elf_backend_final_write_processing m32r_elf_final_write_processing
4048 #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4049 #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4050 #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
4051 #define elf_backend_special_sections m32r_elf_special_sections
4053 #include "elf32-target.h"
4055 #undef ELF_MAXPAGESIZE
4056 #define ELF_MAXPAGESIZE 0x1000
4058 #undef TARGET_BIG_SYM
4059 #define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
4060 #undef TARGET_BIG_NAME
4061 #define TARGET_BIG_NAME "elf32-m32r-linux"
4062 #undef TARGET_LITTLE_SYM
4063 #define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
4064 #undef TARGET_LITTLE_NAME
4065 #define TARGET_LITTLE_NAME "elf32-m32rle-linux"
4067 #define elf32_bed elf32_m32r_lin_bed
4069 #include "elf32-target.h"