1 /* M32R-specific support for 32-bit ELF.
2 Copyright (C) 1996-2016 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
27 #define NOP_INSN 0x7000
28 #define MAKE_PARALLEL(insn) ((insn) | 0x8000)
30 /* Use REL instead of RELA to save space.
31 This only saves space in libraries and object files, but perhaps
32 relocs will be put in ROM? All in all though, REL relocs are a pain
39 /* Use RELA. But use REL to link old objects for backwords compatibility. */
41 /* Functions for the M32R ELF linker. */
43 /* The name of the dynamic interpreter. This is put in the .interp
46 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
48 /* The nop opcode we use. */
50 #define M32R_NOP 0x7000f000
52 #define PLT_EMPTY 0x10101010 /* RIE -> RIE */
54 /* The size in bytes of an entry in the procedure linkage table. */
56 #define PLT_ENTRY_SIZE 20
57 #define PLT_HEADER_SIZE 20
59 /* The first one entries in a procedure linkage table are reserved,
60 and the initial contents are unimportant (we zero them out).
61 Subsequent entries look like this. */
63 #define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
64 #define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
65 #define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
66 #define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
67 #define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
69 #define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
70 #define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
71 #define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
72 #define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
73 #define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
75 #define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
76 #define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
77 #define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
78 #define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
79 #define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
80 #define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
81 #define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
84 /* Utility to actually perform an R_M32R_10_PCREL reloc. */
86 static bfd_reloc_status_type
87 m32r_elf_do_10_pcrel_reloc (bfd *abfd,
88 reloc_howto_type *howto,
89 asection *input_section,
92 asection *symbol_section ATTRIBUTE_UNUSED,
96 bfd_signed_vma relocation;
98 bfd_reloc_status_type status;
100 /* Sanity check the address (offset in section). */
101 if (offset > bfd_get_section_limit (abfd, input_section))
102 return bfd_reloc_outofrange;
104 relocation = symbol_value + addend;
105 /* Make it pc relative. */
106 relocation -= (input_section->output_section->vma
107 + input_section->output_offset);
108 /* These jumps mask off the lower two bits of the current address
109 before doing pcrel calculations. */
110 relocation -= (offset & -(bfd_vma) 4);
112 if (relocation < -0x200 || relocation > 0x1ff)
113 status = bfd_reloc_overflow;
115 status = bfd_reloc_ok;
117 x = bfd_get_16 (abfd, data + offset);
118 relocation >>= howto->rightshift;
119 relocation <<= howto->bitpos;
120 x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
121 bfd_put_16 (abfd, (bfd_vma) x, data + offset);
126 /* Handle the R_M32R_10_PCREL reloc. */
128 static bfd_reloc_status_type
129 m32r_elf_10_pcrel_reloc (bfd * abfd,
130 arelent * reloc_entry,
133 asection * input_section,
135 char ** error_message ATTRIBUTE_UNUSED)
137 /* This part is from bfd_elf_generic_reloc. */
138 if (output_bfd != NULL
139 && (symbol->flags & BSF_SECTION_SYM) == 0
140 && (! reloc_entry->howto->partial_inplace
141 || reloc_entry->addend == 0))
143 reloc_entry->address += input_section->output_offset;
147 if (output_bfd != NULL)
148 /* FIXME: See bfd_perform_relocation. Is this right? */
149 return bfd_reloc_continue;
151 return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
153 data, reloc_entry->address,
156 + symbol->section->output_section->vma
157 + symbol->section->output_offset),
158 reloc_entry->addend);
161 /* Do generic partial_inplace relocation.
162 This is a local replacement for bfd_elf_generic_reloc. */
164 static bfd_reloc_status_type
165 m32r_elf_generic_reloc (bfd *input_bfd,
166 arelent *reloc_entry,
169 asection *input_section,
171 char **error_message ATTRIBUTE_UNUSED)
173 bfd_reloc_status_type ret;
175 bfd_byte *inplace_address;
177 /* This part is from bfd_elf_generic_reloc.
178 If we're relocating, and this an external symbol, we don't want
179 to change anything. */
180 if (output_bfd != NULL
181 && (symbol->flags & BSF_SECTION_SYM) == 0
182 && reloc_entry->addend == 0)
184 reloc_entry->address += input_section->output_offset;
188 /* Now do the reloc in the usual way.
189 ??? It would be nice to call bfd_elf_generic_reloc here,
190 but we have partial_inplace set. bfd_elf_generic_reloc will
191 pass the handling back to bfd_install_relocation which will install
192 a section relative addend which is wrong. */
194 /* Sanity check the address (offset in section). */
195 if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
196 return bfd_reloc_outofrange;
199 if (bfd_is_und_section (symbol->section)
200 && output_bfd == NULL)
201 ret = bfd_reloc_undefined;
203 if (bfd_is_com_section (symbol->section)
204 || output_bfd != NULL)
207 relocation = symbol->value;
209 /* Only do this for a final link. */
210 if (output_bfd == NULL)
212 relocation += symbol->section->output_section->vma;
213 relocation += symbol->section->output_offset;
216 relocation += reloc_entry->addend;
217 inplace_address = (bfd_byte *) data + reloc_entry->address;
220 x = ( (x & ~reloc_entry->howto->dst_mask) | \
221 (((x & reloc_entry->howto->src_mask) + relocation) & \
222 reloc_entry->howto->dst_mask))
224 switch (reloc_entry->howto->size)
228 short x = bfd_get_16 (input_bfd, inplace_address);
230 bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
235 unsigned long x = bfd_get_32 (input_bfd, inplace_address);
237 bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
244 if (output_bfd != NULL)
245 reloc_entry->address += input_section->output_offset;
250 /* Handle the R_M32R_SDA16 reloc.
251 This reloc is used to compute the address of objects in the small data area
252 and to perform loads and stores from that area.
253 The lower 16 bits are sign extended and added to the register specified
254 in the instruction, which is assumed to point to _SDA_BASE_. */
256 static bfd_reloc_status_type
257 m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
258 arelent *reloc_entry,
260 void * data ATTRIBUTE_UNUSED,
261 asection *input_section,
263 char **error_message ATTRIBUTE_UNUSED)
265 /* This part is from bfd_elf_generic_reloc. */
266 if (output_bfd != NULL
267 && (symbol->flags & BSF_SECTION_SYM) == 0
268 && (! reloc_entry->howto->partial_inplace
269 || reloc_entry->addend == 0))
271 reloc_entry->address += input_section->output_offset;
275 if (output_bfd != NULL)
276 /* FIXME: See bfd_perform_relocation. Is this right? */
277 return bfd_reloc_continue;
279 /* FIXME: not sure what to do here yet. But then again, the linker
280 may never call us. */
285 /* Handle the R_M32R_HI16_[SU]LO relocs.
286 HI16_SLO is for the add3 and load/store with displacement instructions.
287 HI16_ULO is for the or3 instruction.
288 For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
289 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
290 we must add one to the high 16 bytes (which will get subtracted off when
291 the low 16 bits are added).
292 These relocs have to be done in combination with an R_M32R_LO16 reloc
293 because there is a carry from the LO16 to the HI16. Here we just save
294 the information we need; we do the actual relocation when we see the LO16.
295 This code is copied from the elf32-mips.c. We also support an arbitrary
296 number of HI16 relocs to be associated with a single LO16 reloc. The
297 assembler sorts the relocs to ensure each HI16 immediately precedes its
298 LO16. However if there are multiple copies, the assembler may not find
299 the real LO16 so it picks the first one it finds. */
303 struct m32r_hi16 *next;
308 /* FIXME: This should not be a static variable. */
310 static struct m32r_hi16 *m32r_hi16_list;
312 static bfd_reloc_status_type
313 m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
314 arelent *reloc_entry,
317 asection *input_section,
319 char **error_message ATTRIBUTE_UNUSED)
321 bfd_reloc_status_type ret;
325 /* This part is from bfd_elf_generic_reloc.
326 If we're relocating, and this an external symbol, we don't want
327 to change anything. */
328 if (output_bfd != NULL
329 && (symbol->flags & BSF_SECTION_SYM) == 0
330 && reloc_entry->addend == 0)
332 reloc_entry->address += input_section->output_offset;
336 /* Sanity check the address (offset in section). */
337 if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
338 return bfd_reloc_outofrange;
341 if (bfd_is_und_section (symbol->section)
342 && output_bfd == NULL)
343 ret = bfd_reloc_undefined;
345 if (bfd_is_com_section (symbol->section))
348 relocation = symbol->value;
350 relocation += symbol->section->output_section->vma;
351 relocation += symbol->section->output_offset;
352 relocation += reloc_entry->addend;
354 /* Save the information, and let LO16 do the actual relocation. */
355 n = bfd_malloc ((bfd_size_type) sizeof *n);
357 return bfd_reloc_outofrange;
358 n->addr = (bfd_byte *) data + reloc_entry->address;
359 n->addend = relocation;
360 n->next = m32r_hi16_list;
363 if (output_bfd != NULL)
364 reloc_entry->address += input_section->output_offset;
369 /* Handle an M32R ELF HI16 reloc. */
372 m32r_elf_relocate_hi16 (bfd *input_bfd,
374 Elf_Internal_Rela *relhi,
375 Elf_Internal_Rela *rello,
382 insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
384 addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
385 if (type == R_M32R_HI16_SLO)
386 addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
390 addend += ((insn & 0xffff) << 16) + addlo;
392 /* Reaccount for sign extension of low part. */
393 if (type == R_M32R_HI16_SLO
394 && (addend & 0x8000) != 0)
397 bfd_put_32 (input_bfd,
398 (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
399 contents + relhi->r_offset);
402 /* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
403 inplace relocation; this function exists in order to do the
404 R_M32R_HI16_[SU]LO relocation described above. */
406 static bfd_reloc_status_type
407 m32r_elf_lo16_reloc (bfd *input_bfd,
408 arelent *reloc_entry,
411 asection *input_section,
413 char **error_message)
415 /* This part is from bfd_elf_generic_reloc.
416 If we're relocating, and this an external symbol, we don't want
417 to change anything. */
418 if (output_bfd != NULL
419 && (symbol->flags & BSF_SECTION_SYM) == 0
420 && reloc_entry->addend == 0)
422 reloc_entry->address += input_section->output_offset;
426 if (m32r_hi16_list != NULL)
436 struct m32r_hi16 *next;
438 /* Do the HI16 relocation. Note that we actually don't need
439 to know anything about the LO16 itself, except where to
440 find the low 16 bits of the addend needed by the LO16. */
441 insn = bfd_get_32 (input_bfd, l->addr);
442 vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
443 & 0xffff) ^ 0x8000) - 0x8000;
444 val = ((insn & 0xffff) << 16) + vallo;
447 /* Reaccount for sign extension of low part. */
448 if ((val & 0x8000) != 0)
451 insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
452 bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
459 m32r_hi16_list = NULL;
462 /* Now do the LO16 reloc in the usual way.
463 ??? It would be nice to call bfd_elf_generic_reloc here,
464 but we have partial_inplace set. bfd_elf_generic_reloc will
465 pass the handling back to bfd_install_relocation which will install
466 a section relative addend which is wrong. */
467 return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
468 input_section, output_bfd, error_message);
472 static reloc_howto_type m32r_elf_howto_table[] =
474 /* This reloc does nothing. */
475 HOWTO (R_M32R_NONE, /* type */
477 3, /* size (0 = byte, 1 = short, 2 = long) */
479 FALSE, /* pc_relative */
481 complain_overflow_dont, /* complain_on_overflow */
482 bfd_elf_generic_reloc, /* special_function */
483 "R_M32R_NONE", /* name */
484 FALSE, /* partial_inplace */
487 FALSE), /* pcrel_offset */
489 /* A 16 bit absolute relocation. */
490 HOWTO (R_M32R_16, /* type */
492 1, /* size (0 = byte, 1 = short, 2 = long) */
494 FALSE, /* pc_relative */
496 complain_overflow_bitfield, /* complain_on_overflow */
497 m32r_elf_generic_reloc,/* special_function */
498 "R_M32R_16", /* name */
499 TRUE, /* partial_inplace */
500 0xffff, /* src_mask */
501 0xffff, /* dst_mask */
502 FALSE), /* pcrel_offset */
504 /* A 32 bit absolute relocation. */
505 HOWTO (R_M32R_32, /* type */
507 2, /* size (0 = byte, 1 = short, 2 = long) */
509 FALSE, /* pc_relative */
511 complain_overflow_bitfield, /* complain_on_overflow */
512 m32r_elf_generic_reloc,/* special_function */
513 "R_M32R_32", /* name */
514 TRUE, /* partial_inplace */
515 0xffffffff, /* src_mask */
516 0xffffffff, /* dst_mask */
517 FALSE), /* pcrel_offset */
519 /* A 24 bit address. */
520 HOWTO (R_M32R_24, /* type */
522 2, /* size (0 = byte, 1 = short, 2 = long) */
524 FALSE, /* pc_relative */
526 complain_overflow_unsigned, /* complain_on_overflow */
527 m32r_elf_generic_reloc,/* special_function */
528 "R_M32R_24", /* name */
529 TRUE, /* partial_inplace */
530 0xffffff, /* src_mask */
531 0xffffff, /* dst_mask */
532 FALSE), /* pcrel_offset */
534 /* An PC Relative 10-bit relocation, shifted by 2.
535 This reloc is complicated because relocations are relative to pc & -4.
536 i.e. branches in the right insn slot use the address of the left insn
538 /* ??? It's not clear whether this should have partial_inplace set or not.
539 Branch relaxing in the assembler can store the addend in the insn,
540 and if bfd_install_relocation gets called the addend may get added
542 HOWTO (R_M32R_10_PCREL, /* type */
544 1, /* size (0 = byte, 1 = short, 2 = long) */
546 TRUE, /* pc_relative */
548 complain_overflow_signed, /* complain_on_overflow */
549 m32r_elf_10_pcrel_reloc, /* special_function */
550 "R_M32R_10_PCREL", /* name */
551 FALSE, /* partial_inplace */
554 TRUE), /* pcrel_offset */
556 /* A relative 18 bit relocation, right shifted by 2. */
557 HOWTO (R_M32R_18_PCREL, /* type */
559 2, /* size (0 = byte, 1 = short, 2 = long) */
561 TRUE, /* pc_relative */
563 complain_overflow_signed, /* complain_on_overflow */
564 bfd_elf_generic_reloc, /* special_function */
565 "R_M32R_18_PCREL", /* name */
566 FALSE, /* partial_inplace */
567 0xffff, /* src_mask */
568 0xffff, /* dst_mask */
569 TRUE), /* pcrel_offset */
571 /* A relative 26 bit relocation, right shifted by 2. */
572 /* ??? It's not clear whether this should have partial_inplace set or not.
573 Branch relaxing in the assembler can store the addend in the insn,
574 and if bfd_install_relocation gets called the addend may get added
576 HOWTO (R_M32R_26_PCREL, /* type */
578 2, /* size (0 = byte, 1 = short, 2 = long) */
580 TRUE, /* pc_relative */
582 complain_overflow_signed, /* complain_on_overflow */
583 bfd_elf_generic_reloc, /* special_function */
584 "R_M32R_26_PCREL", /* name */
585 FALSE, /* partial_inplace */
586 0xffffff, /* src_mask */
587 0xffffff, /* dst_mask */
588 TRUE), /* pcrel_offset */
590 /* High 16 bits of address when lower 16 is or'd in. */
591 HOWTO (R_M32R_HI16_ULO, /* type */
593 2, /* size (0 = byte, 1 = short, 2 = long) */
595 FALSE, /* pc_relative */
597 complain_overflow_dont, /* complain_on_overflow */
598 m32r_elf_hi16_reloc, /* special_function */
599 "R_M32R_HI16_ULO", /* name */
600 TRUE, /* partial_inplace */
601 0x0000ffff, /* src_mask */
602 0x0000ffff, /* dst_mask */
603 FALSE), /* pcrel_offset */
605 /* High 16 bits of address when lower 16 is added in. */
606 HOWTO (R_M32R_HI16_SLO, /* type */
608 2, /* size (0 = byte, 1 = short, 2 = long) */
610 FALSE, /* pc_relative */
612 complain_overflow_dont, /* complain_on_overflow */
613 m32r_elf_hi16_reloc, /* special_function */
614 "R_M32R_HI16_SLO", /* name */
615 TRUE, /* partial_inplace */
616 0x0000ffff, /* src_mask */
617 0x0000ffff, /* dst_mask */
618 FALSE), /* pcrel_offset */
620 /* Lower 16 bits of address. */
621 HOWTO (R_M32R_LO16, /* type */
623 2, /* size (0 = byte, 1 = short, 2 = long) */
625 FALSE, /* pc_relative */
627 complain_overflow_dont, /* complain_on_overflow */
628 m32r_elf_lo16_reloc, /* special_function */
629 "R_M32R_LO16", /* name */
630 TRUE, /* partial_inplace */
631 0x0000ffff, /* src_mask */
632 0x0000ffff, /* dst_mask */
633 FALSE), /* pcrel_offset */
635 /* Small data area 16 bits offset. */
636 HOWTO (R_M32R_SDA16, /* type */
638 2, /* size (0 = byte, 1 = short, 2 = long) */
640 FALSE, /* pc_relative */
642 complain_overflow_signed, /* complain_on_overflow */
643 m32r_elf_sda16_reloc, /* special_function */
644 "R_M32R_SDA16", /* name */
645 TRUE, /* partial_inplace */ /* FIXME: correct? */
646 0x0000ffff, /* src_mask */
647 0x0000ffff, /* dst_mask */
648 FALSE), /* pcrel_offset */
650 /* GNU extension to record C++ vtable hierarchy. */
651 HOWTO (R_M32R_GNU_VTINHERIT, /* type */
653 2, /* size (0 = byte, 1 = short, 2 = long) */
655 FALSE, /* pc_relative */
657 complain_overflow_dont, /* complain_on_overflow */
658 NULL, /* special_function */
659 "R_M32R_GNU_VTINHERIT", /* name */
660 FALSE, /* partial_inplace */
663 FALSE), /* pcrel_offset */
665 /* GNU extension to record C++ vtable member usage. */
666 HOWTO (R_M32R_GNU_VTENTRY, /* type */
668 2, /* size (0 = byte, 1 = short, 2 = long) */
670 FALSE, /* pc_relative */
672 complain_overflow_dont, /* complain_on_overflow */
673 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
674 "R_M32R_GNU_VTENTRY", /* name */
675 FALSE, /* partial_inplace */
678 FALSE), /* pcrel_offset */
701 /* A 16 bit absolute relocation. */
702 HOWTO (R_M32R_16_RELA, /* type */
704 1, /* size (0 = byte, 1 = short, 2 = long) */
706 FALSE, /* pc_relative */
708 complain_overflow_bitfield, /* complain_on_overflow */
709 bfd_elf_generic_reloc, /* special_function */
710 "R_M32R_16_RELA", /* name */
711 FALSE, /* partial_inplace */
712 0xffff, /* src_mask */
713 0xffff, /* dst_mask */
714 FALSE), /* pcrel_offset */
716 /* A 32 bit absolute relocation. */
717 HOWTO (R_M32R_32_RELA, /* type */
719 2, /* size (0 = byte, 1 = short, 2 = long) */
721 FALSE, /* pc_relative */
723 complain_overflow_bitfield, /* complain_on_overflow */
724 bfd_elf_generic_reloc,/* special_function */
725 "R_M32R_32_RELA", /* name */
726 FALSE, /* partial_inplace */
727 0xffffffff, /* src_mask */
728 0xffffffff, /* dst_mask */
729 FALSE), /* pcrel_offset */
731 /* A 24 bit address. */
732 HOWTO (R_M32R_24_RELA, /* type */
734 2, /* size (0 = byte, 1 = short, 2 = long) */
736 FALSE, /* pc_relative */
738 complain_overflow_unsigned, /* complain_on_overflow */
739 bfd_elf_generic_reloc,/* special_function */
740 "R_M32R_24_RELA", /* name */
741 FALSE, /* partial_inplace */
742 0xffffff, /* src_mask */
743 0xffffff, /* dst_mask */
744 FALSE), /* pcrel_offset */
746 HOWTO (R_M32R_10_PCREL_RELA, /* type */
748 1, /* size (0 = byte, 1 = short, 2 = long) */
750 TRUE, /* pc_relative */
752 complain_overflow_signed, /* complain_on_overflow */
753 m32r_elf_10_pcrel_reloc, /* special_function */
754 "R_M32R_10_PCREL_RELA",/* name */
755 FALSE, /* partial_inplace */
758 TRUE), /* pcrel_offset */
760 /* A relative 18 bit relocation, right shifted by 2. */
761 HOWTO (R_M32R_18_PCREL_RELA, /* type */
763 2, /* size (0 = byte, 1 = short, 2 = long) */
765 TRUE, /* pc_relative */
767 complain_overflow_signed, /* complain_on_overflow */
768 bfd_elf_generic_reloc, /* special_function */
769 "R_M32R_18_PCREL_RELA",/* name */
770 FALSE, /* partial_inplace */
771 0xffff, /* src_mask */
772 0xffff, /* dst_mask */
773 TRUE), /* pcrel_offset */
775 /* A relative 26 bit relocation, right shifted by 2. */
776 HOWTO (R_M32R_26_PCREL_RELA, /* type */
778 2, /* size (0 = byte, 1 = short, 2 = long) */
780 TRUE, /* pc_relative */
782 complain_overflow_signed, /* complain_on_overflow */
783 bfd_elf_generic_reloc, /* special_function */
784 "R_M32R_26_PCREL_RELA",/* name */
785 FALSE, /* partial_inplace */
786 0xffffff, /* src_mask */
787 0xffffff, /* dst_mask */
788 TRUE), /* pcrel_offset */
790 /* High 16 bits of address when lower 16 is or'd in. */
791 HOWTO (R_M32R_HI16_ULO_RELA, /* type */
793 2, /* size (0 = byte, 1 = short, 2 = long) */
795 FALSE, /* pc_relative */
797 complain_overflow_dont, /* complain_on_overflow */
798 bfd_elf_generic_reloc, /* special_function */
799 "R_M32R_HI16_ULO_RELA",/* name */
800 FALSE, /* partial_inplace */
801 0x0000ffff, /* src_mask */
802 0x0000ffff, /* dst_mask */
803 FALSE), /* pcrel_offset */
805 /* High 16 bits of address when lower 16 is added in. */
806 HOWTO (R_M32R_HI16_SLO_RELA, /* type */
808 2, /* size (0 = byte, 1 = short, 2 = long) */
810 FALSE, /* pc_relative */
812 complain_overflow_dont, /* complain_on_overflow */
813 bfd_elf_generic_reloc, /* special_function */
814 "R_M32R_HI16_SLO_RELA",/* name */
815 FALSE, /* partial_inplace */
816 0x0000ffff, /* src_mask */
817 0x0000ffff, /* dst_mask */
818 FALSE), /* pcrel_offset */
820 /* Lower 16 bits of address. */
821 HOWTO (R_M32R_LO16_RELA, /* type */
823 2, /* size (0 = byte, 1 = short, 2 = long) */
825 FALSE, /* pc_relative */
827 complain_overflow_dont, /* complain_on_overflow */
828 bfd_elf_generic_reloc, /* special_function */
829 "R_M32R_LO16_RELA", /* name */
830 FALSE, /* partial_inplace */
831 0x0000ffff, /* src_mask */
832 0x0000ffff, /* dst_mask */
833 FALSE), /* pcrel_offset */
835 /* Small data area 16 bits offset. */
836 HOWTO (R_M32R_SDA16_RELA, /* type */
838 2, /* size (0 = byte, 1 = short, 2 = long) */
840 FALSE, /* pc_relative */
842 complain_overflow_signed, /* complain_on_overflow */
843 bfd_elf_generic_reloc, /* special_function */
844 "R_M32R_SDA16_RELA", /* name */
845 TRUE, /* partial_inplace */ /* FIXME: correct? */
846 0x0000ffff, /* src_mask */
847 0x0000ffff, /* dst_mask */
848 FALSE), /* pcrel_offset */
850 /* GNU extension to record C++ vtable hierarchy. */
851 HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
853 2, /* size (0 = byte, 1 = short, 2 = long) */
855 FALSE, /* pc_relative */
857 complain_overflow_dont, /* complain_on_overflow */
858 NULL, /* special_function */
859 "R_M32R_RELA_GNU_VTINHERIT", /* name */
860 FALSE, /* partial_inplace */
863 FALSE), /* pcrel_offset */
865 /* GNU extension to record C++ vtable member usage. */
866 HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
868 2, /* size (0 = byte, 1 = short, 2 = long) */
870 FALSE, /* pc_relative */
872 complain_overflow_dont, /* complain_on_overflow */
873 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
874 "R_M32R_RELA_GNU_VTENTRY", /* name */
875 FALSE, /* partial_inplace */
878 FALSE), /* pcrel_offset */
880 /* A 32 bit PC relative relocation. */
881 HOWTO (R_M32R_REL32, /* type */
883 2, /* size (0 = byte, 1 = short, 2 = long) */
885 TRUE, /* pc_relative */
887 complain_overflow_bitfield, /* complain_on_overflow */
888 bfd_elf_generic_reloc,/* special_function */
889 "R_M32R_REL32", /* name */
890 FALSE, /* partial_inplace */
891 0xffffffff, /* src_mask */
892 0xffffffff, /* dst_mask */
893 TRUE), /* pcrel_offset */
898 /* Like R_M32R_24, but referring to the GOT table entry for
900 HOWTO (R_M32R_GOT24, /* type */
902 2, /* size (0 = byte, 1 = short, 2 = long) */
904 FALSE, /* pc_relative */
906 complain_overflow_unsigned, /* complain_on_overflow */
907 bfd_elf_generic_reloc, /* special_function */
908 "R_M32R_GOT24", /* name */
909 FALSE, /* partial_inplace */
910 0xffffff, /* src_mask */
911 0xffffff, /* dst_mask */
912 FALSE), /* pcrel_offset */
914 /* Like R_M32R_PCREL, but referring to the procedure linkage table
915 entry for the symbol. */
916 HOWTO (R_M32R_26_PLTREL, /* type */
918 2, /* size (0 = byte, 1 = short, 2 = long) */
920 TRUE, /* pc_relative */
922 complain_overflow_signed, /* complain_on_overflow */
923 bfd_elf_generic_reloc, /* special_function */
924 "R_M32R_26_PLTREL", /* name */
925 FALSE, /* partial_inplace */
926 0xffffff, /* src_mask */
927 0xffffff, /* dst_mask */
928 TRUE), /* pcrel_offset */
930 /* This is used only by the dynamic linker. The symbol should exist
931 both in the object being run and in some shared library. The
932 dynamic linker copies the data addressed by the symbol from the
933 shared library into the object, because the object being
934 run has to have the data at some particular address. */
935 HOWTO (R_M32R_COPY, /* type */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
939 FALSE, /* pc_relative */
941 complain_overflow_bitfield, /* complain_on_overflow */
942 bfd_elf_generic_reloc, /* special_function */
943 "R_M32R_COPY", /* name */
944 FALSE, /* partial_inplace */
945 0xffffffff, /* src_mask */
946 0xffffffff, /* dst_mask */
947 FALSE), /* pcrel_offset */
949 /* Like R_M32R_24, but used when setting global offset table
951 HOWTO (R_M32R_GLOB_DAT, /* type */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
955 FALSE, /* pc_relative */
957 complain_overflow_bitfield, /* complain_on_overflow */
958 bfd_elf_generic_reloc, /* special_function */
959 "R_M32R_GLOB_DAT", /* name */
960 FALSE, /* partial_inplace */
961 0xffffffff, /* src_mask */
962 0xffffffff, /* dst_mask */
963 FALSE), /* pcrel_offset */
965 /* Marks a procedure linkage table entry for a symbol. */
966 HOWTO (R_M32R_JMP_SLOT, /* type */
968 2, /* size (0 = byte, 1 = short, 2 = long) */
970 FALSE, /* pc_relative */
972 complain_overflow_bitfield, /* complain_on_overflow */
973 bfd_elf_generic_reloc, /* special_function */
974 "R_M32R_JMP_SLOT", /* name */
975 FALSE, /* partial_inplace */
976 0xffffffff, /* src_mask */
977 0xffffffff, /* dst_mask */
978 FALSE), /* pcrel_offset */
980 /* Used only by the dynamic linker. When the object is run, this
981 longword is set to the load address of the object, plus the
983 HOWTO (R_M32R_RELATIVE, /* type */
985 2, /* size (0 = byte, 1 = short, 2 = long) */
987 FALSE, /* pc_relative */
989 complain_overflow_bitfield, /* complain_on_overflow */
990 bfd_elf_generic_reloc, /* special_function */
991 "R_M32R_RELATIVE", /* name */
992 FALSE, /* partial_inplace */
993 0xffffffff, /* src_mask */
994 0xffffffff, /* dst_mask */
995 FALSE), /* pcrel_offset */
997 HOWTO (R_M32R_GOTOFF, /* type */
999 2, /* size (0 = byte, 1 = short, 2 = long) */
1001 FALSE, /* pc_relative */
1003 complain_overflow_bitfield, /* complain_on_overflow */
1004 bfd_elf_generic_reloc, /* special_function */
1005 "R_M32R_GOTOFF", /* name */
1006 FALSE, /* partial_inplace */
1007 0xffffff, /* src_mask */
1008 0xffffff, /* dst_mask */
1009 FALSE), /* pcrel_offset */
1011 /* An PC Relative 24-bit relocation used when setting PIC offset
1013 HOWTO (R_M32R_GOTPC24, /* type */
1015 2, /* size (0 = byte, 1 = short, 2 = long) */
1017 TRUE, /* pc_relative */
1019 complain_overflow_unsigned, /* complain_on_overflow */
1020 bfd_elf_generic_reloc, /* special_function */
1021 "R_M32R_GOTPC24", /* name */
1022 FALSE, /* partial_inplace */
1023 0xffffff, /* src_mask */
1024 0xffffff, /* dst_mask */
1025 TRUE), /* pcrel_offset */
1027 /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1029 HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1030 16, /* rightshift */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 FALSE, /* pc_relative */
1035 complain_overflow_dont, /* complain_on_overflow */
1036 bfd_elf_generic_reloc, /* special_function */
1037 "R_M32R_GOT16_HI_ULO", /* name */
1038 FALSE, /* partial_inplace */
1039 0x0000ffff, /* src_mask */
1040 0x0000ffff, /* dst_mask */
1041 FALSE), /* pcrel_offset */
1043 /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1045 HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1046 16, /* rightshift */
1047 2, /* size (0 = byte, 1 = short, 2 = long) */
1049 FALSE, /* pc_relative */
1051 complain_overflow_dont, /* complain_on_overflow */
1052 bfd_elf_generic_reloc, /* special_function */
1053 "R_M32R_GOT16_HI_SLO", /* name */
1054 FALSE, /* partial_inplace */
1055 0x0000ffff, /* src_mask */
1056 0x0000ffff, /* dst_mask */
1057 FALSE), /* pcrel_offset */
1059 /* Like R_M32R_LO16, but referring to the GOT table entry for
1061 HOWTO (R_M32R_GOT16_LO, /* type */
1063 2, /* size (0 = byte, 1 = short, 2 = long) */
1065 FALSE, /* pc_relative */
1067 complain_overflow_dont, /* complain_on_overflow */
1068 bfd_elf_generic_reloc, /* special_function */
1069 "R_M32R_GOT16_LO", /* name */
1070 FALSE, /* partial_inplace */
1071 0x0000ffff, /* src_mask */
1072 0x0000ffff, /* dst_mask */
1073 FALSE), /* pcrel_offset */
1075 /* An PC Relative relocation used when setting PIC offset table register.
1076 Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1078 HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1079 16, /* rightshift */
1080 2, /* size (0 = byte, 1 = short, 2 = long) */
1082 FALSE, /* pc_relative */
1084 complain_overflow_dont, /* complain_on_overflow */
1085 bfd_elf_generic_reloc, /* special_function */
1086 "R_M32R_GOTPC_HI_ULO", /* name */
1087 FALSE, /* partial_inplace */
1088 0x0000ffff, /* src_mask */
1089 0x0000ffff, /* dst_mask */
1090 TRUE), /* pcrel_offset */
1092 /* An PC Relative relocation used when setting PIC offset table register.
1093 Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1095 HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1096 16, /* rightshift */
1097 2, /* size (0 = byte, 1 = short, 2 = long) */
1099 FALSE, /* pc_relative */
1101 complain_overflow_dont, /* complain_on_overflow */
1102 bfd_elf_generic_reloc, /* special_function */
1103 "R_M32R_GOTPC_HI_SLO", /* name */
1104 FALSE, /* partial_inplace */
1105 0x0000ffff, /* src_mask */
1106 0x0000ffff, /* dst_mask */
1107 TRUE), /* pcrel_offset */
1109 /* An PC Relative relocation used when setting PIC offset table register.
1110 Like R_M32R_LO16, but referring to the GOT table entry for
1112 HOWTO (R_M32R_GOTPC_LO, /* type */
1114 2, /* size (0 = byte, 1 = short, 2 = long) */
1116 FALSE, /* pc_relative */
1118 complain_overflow_dont, /* complain_on_overflow */
1119 bfd_elf_generic_reloc, /* special_function */
1120 "R_M32R_GOTPC_LO", /* name */
1121 FALSE, /* partial_inplace */
1122 0x0000ffff, /* src_mask */
1123 0x0000ffff, /* dst_mask */
1124 TRUE), /* pcrel_offset */
1126 HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1127 16, /* rightshift */
1128 2, /* size (0 = byte, 1 = short, 2 = long) */
1130 FALSE, /* pc_relative */
1132 complain_overflow_dont, /* complain_on_overflow */
1133 bfd_elf_generic_reloc, /* special_function */
1134 "R_M32R_GOTOFF_HI_ULO",/* name */
1135 FALSE, /* partial_inplace */
1136 0x0000ffff, /* src_mask */
1137 0x0000ffff, /* dst_mask */
1138 FALSE), /* pcrel_offset */
1140 HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1141 16, /* rightshift */
1142 2, /* size (0 = byte, 1 = short, 2 = long) */
1144 FALSE, /* pc_relative */
1146 complain_overflow_dont, /* complain_on_overflow */
1147 bfd_elf_generic_reloc, /* special_function */
1148 "R_M32R_GOTOFF_HI_SLO",/* name */
1149 FALSE, /* partial_inplace */
1150 0x0000ffff, /* src_mask */
1151 0x0000ffff, /* dst_mask */
1152 FALSE), /* pcrel_offset */
1154 HOWTO (R_M32R_GOTOFF_LO, /* type */
1156 2, /* size (0 = byte, 1 = short, 2 = long) */
1158 FALSE, /* pc_relative */
1160 complain_overflow_dont, /* complain_on_overflow */
1161 bfd_elf_generic_reloc, /* special_function */
1162 "R_M32R_GOTOFF_LO", /* name */
1163 FALSE, /* partial_inplace */
1164 0x0000ffff, /* src_mask */
1165 0x0000ffff, /* dst_mask */
1166 FALSE), /* pcrel_offset */
1169 /* Map BFD reloc types to M32R ELF reloc types. */
1171 struct m32r_reloc_map
1173 bfd_reloc_code_real_type bfd_reloc_val;
1174 unsigned char elf_reloc_val;
1177 #ifdef USE_M32R_OLD_RELOC
1178 static const struct m32r_reloc_map m32r_reloc_map_old[] =
1180 { BFD_RELOC_NONE, R_M32R_NONE },
1181 { BFD_RELOC_16, R_M32R_16 },
1182 { BFD_RELOC_32, R_M32R_32 },
1183 { BFD_RELOC_M32R_24, R_M32R_24 },
1184 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1185 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1186 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1187 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1188 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1189 { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1190 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1191 { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1192 { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1195 static const struct m32r_reloc_map m32r_reloc_map[] =
1197 { BFD_RELOC_NONE, R_M32R_NONE },
1198 { BFD_RELOC_16, R_M32R_16_RELA },
1199 { BFD_RELOC_32, R_M32R_32_RELA },
1200 { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1201 { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1202 { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1203 { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1204 { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1205 { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1206 { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1207 { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1208 { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1209 { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
1210 { BFD_RELOC_32_PCREL, R_M32R_REL32 },
1212 { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1213 { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1214 { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1215 { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1216 { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1217 { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1218 { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1219 { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1220 { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1221 { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1222 { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1223 { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1224 { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1225 { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
1226 { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1227 { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1228 { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
1232 static reloc_howto_type *
1233 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1234 bfd_reloc_code_real_type code)
1238 #ifdef USE_M32R_OLD_RELOC
1240 i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1242 if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1243 return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1245 #else /* ! USE_M32R_OLD_RELOC */
1248 i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1250 if (m32r_reloc_map[i].bfd_reloc_val == code)
1251 return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
1257 static reloc_howto_type *
1258 bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1264 i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1266 if (m32r_elf_howto_table[i].name != NULL
1267 && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1268 return &m32r_elf_howto_table[i];
1273 /* Set the howto pointer for an M32R ELF reloc. */
1276 m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1278 Elf_Internal_Rela *dst)
1280 unsigned int r_type;
1282 r_type = ELF32_R_TYPE (dst->r_info);
1283 if (r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1285 _bfd_error_handler (_("%B: invalid M32R reloc number: %d"), abfd, r_type);
1288 cache_ptr->howto = &m32r_elf_howto_table[r_type];
1292 m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1294 Elf_Internal_Rela *dst)
1296 BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1297 || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1298 && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1299 cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1303 /* Given a BFD section, try to locate the corresponding ELF section
1307 _bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1311 if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1313 *retval = SHN_M32R_SCOMMON;
1319 /* M32R ELF uses two common sections. One is the usual one, and the other
1320 is for small objects. All the small objects are kept together, and then
1321 referenced via one register, which yields faster assembler code. It is
1322 up to the compiler to emit an instruction to load the register with
1323 _SDA_BASE. This is what we use for the small common section. This
1324 approach is copied from elf32-mips.c. */
1325 static asection m32r_elf_scom_section;
1326 static asymbol m32r_elf_scom_symbol;
1327 static asymbol *m32r_elf_scom_symbol_ptr;
1329 /* Handle the special M32R section numbers that a symbol may use. */
1332 _bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
1334 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
1336 switch (elfsym->internal_elf_sym.st_shndx)
1338 case SHN_M32R_SCOMMON:
1339 if (m32r_elf_scom_section.name == NULL)
1341 /* Initialize the small common section. */
1342 m32r_elf_scom_section.name = ".scommon";
1343 m32r_elf_scom_section.flags = SEC_IS_COMMON;
1344 m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1345 m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1346 m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1347 m32r_elf_scom_symbol.name = ".scommon";
1348 m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1349 m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1350 m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1352 asym->section = &m32r_elf_scom_section;
1353 asym->value = elfsym->internal_elf_sym.st_size;
1358 /* Hook called by the linker routine which adds symbols from an object
1359 file. We must handle the special M32R section numbers here.
1360 We also keep watching for whether we need to create the sdata special
1364 m32r_elf_add_symbol_hook (bfd *abfd,
1365 struct bfd_link_info *info,
1366 Elf_Internal_Sym *sym,
1368 flagword *flagsp ATTRIBUTE_UNUSED,
1372 if (! bfd_link_relocatable (info)
1373 && (*namep)[0] == '_' && (*namep)[1] == 'S'
1374 && strcmp (*namep, "_SDA_BASE_") == 0
1375 && is_elf_hash_table (info->hash))
1377 /* This is simpler than using _bfd_elf_create_linker_section
1378 (our needs are simpler than ppc's needs). Also
1379 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1380 section already exists a new one is created that follows it which
1381 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1382 struct elf_link_hash_entry *h;
1383 struct bfd_link_hash_entry *bh;
1384 asection *s = bfd_get_section_by_name (abfd, ".sdata");
1386 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
1389 flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1390 | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1392 s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1396 if (! bfd_set_section_alignment (abfd, s, 2))
1400 bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1401 FALSE, FALSE, FALSE);
1403 if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1404 && !(_bfd_generic_link_add_one_symbol (info,
1412 get_elf_backend_data (abfd)->collect,
1415 h = (struct elf_link_hash_entry *) bh;
1416 h->type = STT_OBJECT;
1419 switch (sym->st_shndx)
1421 case SHN_M32R_SCOMMON:
1422 *secp = bfd_make_section_old_way (abfd, ".scommon");
1423 (*secp)->flags |= SEC_IS_COMMON;
1424 *valp = sym->st_size;
1431 /* We have to figure out the SDA_BASE value, so that we can adjust the
1432 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1433 BFD. If we can't find it, we're stuck. We cache it in the ELF
1434 target data. We don't need to adjust the symbol value for an
1435 external symbol if we are producing relocatable output. */
1437 static bfd_reloc_status_type
1438 m32r_elf_final_sda_base (bfd *output_bfd,
1439 struct bfd_link_info *info,
1440 const char **error_message,
1443 if (elf_gp (output_bfd) == 0)
1445 struct bfd_link_hash_entry *h;
1447 h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
1448 if (h != NULL && h->type == bfd_link_hash_defined)
1449 elf_gp (output_bfd) = (h->u.def.value
1450 + h->u.def.section->output_section->vma
1451 + h->u.def.section->output_offset);
1454 /* Only get the error once. */
1455 *psb = elf_gp (output_bfd) = 4;
1457 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1458 return bfd_reloc_dangerous;
1461 *psb = elf_gp (output_bfd);
1462 return bfd_reloc_ok;
1465 /* Return size of a PLT entry. */
1466 #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1468 /* The m32r linker needs to keep track of the number of relocs that it
1469 decides to copy in check_relocs for each symbol. This is so that
1470 it can discard PC relative relocs if it doesn't need them when
1471 linking with -Bsymbolic. We store the information in a field
1472 extending the regular ELF linker hash table. */
1474 /* This structure keeps track of the number of PC relative relocs we
1475 have copied for a given symbol. */
1477 struct elf_m32r_pcrel_relocs_copied
1480 struct elf_m32r_pcrel_relocs_copied *next;
1481 /* A section in dynobj. */
1483 /* Number of relocs copied in this section. */
1484 bfd_size_type count;
1487 /* The sh linker needs to keep track of the number of relocs that it
1488 decides to copy as dynamic relocs in check_relocs for each symbol.
1489 This is so that it can later discard them if they are found to be
1490 unnecessary. We store the information in a field extending the
1491 regular ELF linker hash table. */
1493 struct elf_m32r_dyn_relocs
1495 struct elf_m32r_dyn_relocs *next;
1497 /* The input section of the reloc. */
1500 /* Total number of relocs copied for the input section. */
1501 bfd_size_type count;
1503 /* Number of pc-relative relocs copied for the input section. */
1504 bfd_size_type pc_count;
1508 /* m32r ELF linker hash entry. */
1510 struct elf_m32r_link_hash_entry
1512 struct elf_link_hash_entry root;
1514 /* Track dynamic relocs copied for this symbol. */
1515 struct elf_m32r_dyn_relocs *dyn_relocs;
1518 /* m32r ELF linker hash table. */
1520 struct elf_m32r_link_hash_table
1522 struct elf_link_hash_table root;
1524 /* Short-cuts to get to dynamic linker sections. */
1533 /* Small local sym cache. */
1534 struct sym_cache sym_cache;
1537 /* Traverse an m32r ELF linker hash table. */
1539 #define m32r_elf_link_hash_traverse(table, func, info) \
1540 (elf_link_hash_traverse \
1542 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
1545 /* Get the m32r ELF linker hash table from a link_info structure. */
1547 #define m32r_elf_hash_table(p) \
1548 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1549 == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
1551 /* Create an entry in an m32r ELF linker hash table. */
1553 static struct bfd_hash_entry *
1554 m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1555 struct bfd_hash_table *table,
1558 struct elf_m32r_link_hash_entry *ret =
1559 (struct elf_m32r_link_hash_entry *) entry;
1561 /* Allocate the structure if it has not already been allocated by a
1564 ret = bfd_hash_allocate (table,
1565 sizeof (struct elf_m32r_link_hash_entry));
1569 /* Call the allocation method of the superclass. */
1570 ret = ((struct elf_m32r_link_hash_entry *)
1571 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1575 struct elf_m32r_link_hash_entry *eh;
1577 eh = (struct elf_m32r_link_hash_entry *) ret;
1578 eh->dyn_relocs = NULL;
1581 return (struct bfd_hash_entry *) ret;
1584 /* Create an m32r ELF linker hash table. */
1586 static struct bfd_link_hash_table *
1587 m32r_elf_link_hash_table_create (bfd *abfd)
1589 struct elf_m32r_link_hash_table *ret;
1590 bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
1592 ret = bfd_zmalloc (amt);
1596 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1597 m32r_elf_link_hash_newfunc,
1598 sizeof (struct elf_m32r_link_hash_entry),
1605 return &ret->root.root;
1608 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1609 shortcuts to them in our hash table. */
1612 create_got_section (bfd *dynobj, struct bfd_link_info *info)
1614 struct elf_m32r_link_hash_table *htab;
1616 if (! _bfd_elf_create_got_section (dynobj, info))
1619 htab = m32r_elf_hash_table (info);
1623 htab->sgot = bfd_get_linker_section (dynobj, ".got");
1624 htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
1625 htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got");
1626 if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
1632 /* Create dynamic sections when linking against a dynamic object. */
1635 m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
1637 struct elf_m32r_link_hash_table *htab;
1638 flagword flags, pltflags;
1640 const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1641 int ptralign = 2; /* 32bit */
1643 htab = m32r_elf_hash_table (info);
1647 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1648 .rel[a].bss sections. */
1649 flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1650 | SEC_LINKER_CREATED);
1653 pltflags |= SEC_CODE;
1654 if (bed->plt_not_loaded)
1655 pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1656 if (bed->plt_readonly)
1657 pltflags |= SEC_READONLY;
1659 s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
1662 || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1665 if (bed->want_plt_sym)
1667 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1669 struct bfd_link_hash_entry *bh = NULL;
1670 struct elf_link_hash_entry *h;
1672 if (! (_bfd_generic_link_add_one_symbol
1673 (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1674 (bfd_vma) 0, NULL, FALSE,
1675 get_elf_backend_data (abfd)->collect, &bh)))
1677 h = (struct elf_link_hash_entry *) bh;
1679 h->type = STT_OBJECT;
1680 htab->root.hplt = h;
1682 if (bfd_link_pic (info)
1683 && ! bfd_elf_link_record_dynamic_symbol (info, h))
1687 s = bfd_make_section_anyway_with_flags (abfd,
1688 bed->default_use_rela_p
1689 ? ".rela.plt" : ".rel.plt",
1690 flags | SEC_READONLY);
1693 || ! bfd_set_section_alignment (abfd, s, ptralign))
1696 if (htab->sgot == NULL
1697 && ! create_got_section (abfd, info))
1700 if (bed->want_dynbss)
1702 /* The .dynbss section is a place to put symbols which are defined
1703 by dynamic objects, are referenced by regular objects, and are
1704 not functions. We must allocate space for them in the process
1705 image and use a R_*_COPY reloc to tell the dynamic linker to
1706 initialize them at run time. The linker script puts the .dynbss
1707 section into the .bss section of the final image. */
1708 s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1709 SEC_ALLOC | SEC_LINKER_CREATED);
1713 /* The .rel[a].bss section holds copy relocs. This section is not
1714 normally needed. We need to create it here, though, so that the
1715 linker will map it to an output section. We can't just create it
1716 only if we need it, because we will not know whether we need it
1717 until we have seen all the input files, and the first time the
1718 main linker code calls BFD after examining all the input files
1719 (size_dynamic_sections) the input sections have already been
1720 mapped to the output sections. If the section turns out not to
1721 be needed, we can discard it later. We will never need this
1722 section when generating a shared object, since they do not use
1724 if (! bfd_link_pic (info))
1726 s = bfd_make_section_anyway_with_flags (abfd,
1727 (bed->default_use_rela_p
1728 ? ".rela.bss" : ".rel.bss"),
1729 flags | SEC_READONLY);
1732 || ! bfd_set_section_alignment (abfd, s, ptralign))
1740 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1743 m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
1744 struct elf_link_hash_entry *dir,
1745 struct elf_link_hash_entry *ind)
1747 struct elf_m32r_link_hash_entry * edir;
1748 struct elf_m32r_link_hash_entry * eind;
1750 edir = (struct elf_m32r_link_hash_entry *) dir;
1751 eind = (struct elf_m32r_link_hash_entry *) ind;
1753 if (eind->dyn_relocs != NULL)
1755 if (edir->dyn_relocs != NULL)
1757 struct elf_m32r_dyn_relocs **pp;
1758 struct elf_m32r_dyn_relocs *p;
1760 /* Add reloc counts against the indirect sym to the direct sym
1761 list. Merge any entries against the same section. */
1762 for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
1764 struct elf_m32r_dyn_relocs *q;
1766 for (q = edir->dyn_relocs; q != NULL; q = q->next)
1767 if (q->sec == p->sec)
1769 q->pc_count += p->pc_count;
1770 q->count += p->count;
1777 *pp = edir->dyn_relocs;
1780 edir->dyn_relocs = eind->dyn_relocs;
1781 eind->dyn_relocs = NULL;
1784 _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1788 /* Adjust a symbol defined by a dynamic object and referenced by a
1789 regular object. The current definition is in some section of the
1790 dynamic object, but we're not including those sections. We have to
1791 change the definition to something the rest of the link can
1795 m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1796 struct elf_link_hash_entry *h)
1798 struct elf_m32r_link_hash_table *htab;
1799 struct elf_m32r_link_hash_entry *eh;
1800 struct elf_m32r_dyn_relocs *p;
1805 printf ("m32r_elf_adjust_dynamic_symbol()\n");
1808 dynobj = elf_hash_table (info)->dynobj;
1810 /* Make sure we know what is going on here. */
1811 BFD_ASSERT (dynobj != NULL
1813 || h->u.weakdef != NULL
1816 && !h->def_regular)));
1818 /* If this is a function, put it in the procedure linkage table. We
1819 will fill in the contents of the procedure linkage table later,
1820 when we know the address of the .got section. */
1821 if (h->type == STT_FUNC
1824 if (! bfd_link_pic (info)
1827 && h->root.type != bfd_link_hash_undefweak
1828 && h->root.type != bfd_link_hash_undefined)
1830 /* This case can occur if we saw a PLT reloc in an input
1831 file, but the symbol was never referred to by a dynamic
1832 object. In such a case, we don't actually need to build
1833 a procedure linkage table, and we can just do a PCREL
1835 h->plt.offset = (bfd_vma) -1;
1842 h->plt.offset = (bfd_vma) -1;
1844 /* If this is a weak symbol, and there is a real definition, the
1845 processor independent code will have arranged for us to see the
1846 real definition first, and we can just use the same value. */
1847 if (h->u.weakdef != NULL)
1849 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1850 || h->u.weakdef->root.type == bfd_link_hash_defweak);
1851 h->root.u.def.section = h->u.weakdef->root.u.def.section;
1852 h->root.u.def.value = h->u.weakdef->root.u.def.value;
1856 /* This is a reference to a symbol defined by a dynamic object which
1857 is not a function. */
1859 /* If we are creating a shared library, we must presume that the
1860 only references to the symbol are via the global offset table.
1861 For such cases we need not do anything here; the relocations will
1862 be handled correctly by relocate_section. */
1863 if (bfd_link_pic (info))
1866 /* If there are no references to this symbol that do not use the
1867 GOT, we don't need to generate a copy reloc. */
1868 if (!h->non_got_ref)
1871 /* If -z nocopyreloc was given, we won't generate them either. */
1872 if (info->nocopyreloc)
1878 eh = (struct elf_m32r_link_hash_entry *) h;
1879 for (p = eh->dyn_relocs; p != NULL; p = p->next)
1881 s = p->sec->output_section;
1882 if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1886 /* If we didn't find any dynamic relocs in sections which needs the
1887 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1895 /* We must allocate the symbol in our .dynbss section, which will
1896 become part of the .bss section of the executable. There will be
1897 an entry for this symbol in the .dynsym section. The dynamic
1898 object will contain position independent code, so all references
1899 from the dynamic object to this symbol will go through the global
1900 offset table. The dynamic linker will use the .dynsym entry to
1901 determine the address it must put in the global offset table, so
1902 both the dynamic object and the regular object will refer to the
1903 same memory location for the variable. */
1905 htab = m32r_elf_hash_table (info);
1910 BFD_ASSERT (s != NULL);
1912 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1913 to copy the initial value out of the dynamic object and into the
1914 runtime process image. We need to remember the offset into the
1915 .rela.bss section we are going to use. */
1916 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1920 srel = htab->srelbss;
1921 BFD_ASSERT (srel != NULL);
1922 srel->size += sizeof (Elf32_External_Rela);
1926 return _bfd_elf_adjust_dynamic_copy (info, h, s);
1929 /* Allocate space in .plt, .got and associated reloc sections for
1933 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1935 struct bfd_link_info *info;
1936 struct elf_m32r_link_hash_table *htab;
1937 struct elf_m32r_link_hash_entry *eh;
1938 struct elf_m32r_dyn_relocs *p;
1940 if (h->root.type == bfd_link_hash_indirect)
1943 info = (struct bfd_link_info *) inf;
1944 htab = m32r_elf_hash_table (info);
1948 eh = (struct elf_m32r_link_hash_entry *) h;
1950 if (htab->root.dynamic_sections_created
1951 && h->plt.refcount > 0)
1953 /* Make sure this symbol is output as a dynamic symbol.
1954 Undefined weak syms won't yet be marked as dynamic. */
1955 if (h->dynindx == -1
1956 && !h->forced_local)
1958 if (! bfd_elf_link_record_dynamic_symbol (info, h))
1962 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1964 asection *s = htab->splt;
1966 /* If this is the first .plt entry, make room for the special
1969 s->size += PLT_ENTRY_SIZE;
1971 h->plt.offset = s->size;
1973 /* If this symbol is not defined in a regular file, and we are
1974 not generating a shared library, then set the symbol to this
1975 location in the .plt. This is required to make function
1976 pointers compare as equal between the normal executable and
1977 the shared library. */
1978 if (! bfd_link_pic (info)
1981 h->root.u.def.section = s;
1982 h->root.u.def.value = h->plt.offset;
1985 /* Make room for this entry. */
1986 s->size += PLT_ENTRY_SIZE;
1988 /* We also need to make an entry in the .got.plt section, which
1989 will be placed in the .got section by the linker script. */
1990 htab->sgotplt->size += 4;
1992 /* We also need to make an entry in the .rel.plt section. */
1993 htab->srelplt->size += sizeof (Elf32_External_Rela);
1997 h->plt.offset = (bfd_vma) -1;
2003 h->plt.offset = (bfd_vma) -1;
2007 if (h->got.refcount > 0)
2012 /* Make sure this symbol is output as a dynamic symbol.
2013 Undefined weak syms won't yet be marked as dynamic. */
2014 if (h->dynindx == -1
2015 && !h->forced_local)
2017 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2023 h->got.offset = s->size;
2025 dyn = htab->root.dynamic_sections_created;
2026 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
2027 htab->srelgot->size += sizeof (Elf32_External_Rela);
2030 h->got.offset = (bfd_vma) -1;
2032 if (eh->dyn_relocs == NULL)
2035 /* In the shared -Bsymbolic case, discard space allocated for
2036 dynamic pc-relative relocs against symbols which turn out to be
2037 defined in regular objects. For the normal shared case, discard
2038 space for pc-relative relocs that have become local due to symbol
2039 visibility changes. */
2041 if (bfd_link_pic (info))
2047 struct elf_m32r_dyn_relocs **pp;
2049 for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2051 p->count -= p->pc_count;
2060 /* Also discard relocs on undefined weak syms with non-default
2062 if (eh->dyn_relocs != NULL
2063 && h->root.type == bfd_link_hash_undefweak)
2065 if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2066 eh->dyn_relocs = NULL;
2068 /* Make sure undefined weak symbols are output as a dynamic
2070 else if (h->dynindx == -1
2071 && !h->forced_local)
2073 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2080 /* For the non-shared case, discard space for relocs against
2081 symbols which turn out to need copy relocs or are not
2087 || (htab->root.dynamic_sections_created
2088 && (h->root.type == bfd_link_hash_undefweak
2089 || h->root.type == bfd_link_hash_undefined))))
2091 /* Make sure this symbol is output as a dynamic symbol.
2092 Undefined weak syms won't yet be marked as dynamic. */
2093 if (h->dynindx == -1
2094 && !h->forced_local)
2096 if (! bfd_elf_link_record_dynamic_symbol (info, h))
2100 /* If that succeeded, we know we'll be keeping all the
2102 if (h->dynindx != -1)
2106 eh->dyn_relocs = NULL;
2111 /* Finally, allocate space. */
2112 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2114 asection *sreloc = elf_section_data (p->sec)->sreloc;
2115 sreloc->size += p->count * sizeof (Elf32_External_Rela);
2121 /* Find any dynamic relocs that apply to read-only sections. */
2124 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2126 struct elf_m32r_link_hash_entry *eh;
2127 struct elf_m32r_dyn_relocs *p;
2129 eh = (struct elf_m32r_link_hash_entry *) h;
2130 for (p = eh->dyn_relocs; p != NULL; p = p->next)
2132 asection *s = p->sec->output_section;
2134 if (s != NULL && (s->flags & SEC_READONLY) != 0)
2136 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2138 info->flags |= DF_TEXTREL;
2140 /* Not an error, just cut short the traversal. */
2147 /* Set the sizes of the dynamic sections. */
2150 m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2151 struct bfd_link_info *info)
2153 struct elf_m32r_link_hash_table *htab;
2160 printf ("m32r_elf_size_dynamic_sections()\n");
2163 htab = m32r_elf_hash_table (info);
2167 dynobj = htab->root.dynobj;
2168 BFD_ASSERT (dynobj != NULL);
2170 if (htab->root.dynamic_sections_created)
2172 /* Set the contents of the .interp section to the interpreter. */
2173 if (bfd_link_executable (info) && !info->nointerp)
2175 s = bfd_get_linker_section (dynobj, ".interp");
2176 BFD_ASSERT (s != NULL);
2177 s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2178 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2182 /* Set up .got offsets for local syms, and space for local dynamic
2184 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2186 bfd_signed_vma *local_got;
2187 bfd_signed_vma *end_local_got;
2188 bfd_size_type locsymcount;
2189 Elf_Internal_Shdr *symtab_hdr;
2192 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2195 for (s = ibfd->sections; s != NULL; s = s->next)
2197 struct elf_m32r_dyn_relocs *p;
2199 for (p = ((struct elf_m32r_dyn_relocs *)
2200 elf_section_data (s)->local_dynrel);
2204 if (! bfd_is_abs_section (p->sec)
2205 && bfd_is_abs_section (p->sec->output_section))
2207 /* Input section has been discarded, either because
2208 it is a copy of a linkonce section or due to
2209 linker script /DISCARD/, so we'll be discarding
2212 else if (p->count != 0)
2214 srel = elf_section_data (p->sec)->sreloc;
2215 srel->size += p->count * sizeof (Elf32_External_Rela);
2216 if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2217 info->flags |= DF_TEXTREL;
2222 local_got = elf_local_got_refcounts (ibfd);
2226 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2227 locsymcount = symtab_hdr->sh_info;
2228 end_local_got = local_got + locsymcount;
2230 srel = htab->srelgot;
2231 for (; local_got < end_local_got; ++local_got)
2235 *local_got = s->size;
2237 if (bfd_link_pic (info))
2238 srel->size += sizeof (Elf32_External_Rela);
2241 *local_got = (bfd_vma) -1;
2245 /* Allocate global sym .plt and .got entries, and space for global
2246 sym dynamic relocs. */
2247 elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2249 /* We now have determined the sizes of the various dynamic sections.
2250 Allocate memory for them. */
2252 for (s = dynobj->sections; s != NULL; s = s->next)
2254 if ((s->flags & SEC_LINKER_CREATED) == 0)
2259 || s == htab->sgotplt
2260 || s == htab->sdynbss)
2262 /* Strip this section if we don't need it; see the
2265 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2267 if (s->size != 0 && s != htab->srelplt)
2270 /* We use the reloc_count field as a counter if we need
2271 to copy relocs into the output file. */
2275 /* It's not one of our sections, so don't allocate space. */
2280 /* If we don't need this section, strip it from the
2281 output file. This is mostly to handle .rela.bss and
2282 .rela.plt. We must create both sections in
2283 create_dynamic_sections, because they must be created
2284 before the linker maps input sections to output
2285 sections. The linker does that before
2286 adjust_dynamic_symbol is called, and it is that
2287 function which decides whether anything needs to go
2288 into these sections. */
2289 s->flags |= SEC_EXCLUDE;
2293 if ((s->flags & SEC_HAS_CONTENTS) == 0)
2296 /* Allocate memory for the section contents. We use bfd_zalloc
2297 here in case unused entries are not reclaimed before the
2298 section's contents are written out. This should not happen,
2299 but this way if it does, we get a R_M32R_NONE reloc instead
2301 s->contents = bfd_zalloc (dynobj, s->size);
2302 if (s->contents == NULL)
2306 if (htab->root.dynamic_sections_created)
2308 /* Add some entries to the .dynamic section. We fill in the
2309 values later, in m32r_elf_finish_dynamic_sections, but we
2310 must add the entries now so that we get the correct size for
2311 the .dynamic section. The DT_DEBUG entry is filled in by the
2312 dynamic linker and used by the debugger. */
2313 #define add_dynamic_entry(TAG, VAL) \
2314 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2316 if (bfd_link_executable (info))
2318 if (! add_dynamic_entry (DT_DEBUG, 0))
2322 if (htab->splt->size != 0)
2324 if (! add_dynamic_entry (DT_PLTGOT, 0)
2325 || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2326 || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2327 || ! add_dynamic_entry (DT_JMPREL, 0))
2333 if (! add_dynamic_entry (DT_RELA, 0)
2334 || ! add_dynamic_entry (DT_RELASZ, 0)
2335 || ! add_dynamic_entry (DT_RELAENT,
2336 sizeof (Elf32_External_Rela)))
2339 /* If any dynamic relocs apply to a read-only section,
2340 then we need a DT_TEXTREL entry. */
2341 if ((info->flags & DF_TEXTREL) == 0)
2342 elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2345 if ((info->flags & DF_TEXTREL) != 0)
2347 if (! add_dynamic_entry (DT_TEXTREL, 0))
2352 #undef add_dynamic_entry
2357 /* Relocate an M32R/D ELF section.
2358 There is some attempt to make this function usable for many architectures,
2359 both for RELA and REL type relocs, if only to serve as a learning tool.
2361 The RELOCATE_SECTION function is called by the new ELF backend linker
2362 to handle the relocations for a section.
2364 The relocs are always passed as Rela structures; if the section
2365 actually uses Rel structures, the r_addend field will always be
2368 This function is responsible for adjust the section contents as
2369 necessary, and (if using Rela relocs and generating a
2370 relocatable output file) adjusting the reloc addend as
2373 This function does not have to worry about setting the reloc
2374 address or the reloc symbol index.
2376 LOCAL_SYMS is a pointer to the swapped in local symbols.
2378 LOCAL_SECTIONS is an array giving the section in the input file
2379 corresponding to the st_shndx field of each local symbol.
2381 The global hash table entry for the global symbols can be found
2382 via elf_sym_hashes (input_bfd).
2384 When generating relocatable output, this function must handle
2385 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2386 going to be the section symbol corresponding to the output
2387 section, which means that the addend must be adjusted
2391 m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2392 struct bfd_link_info *info,
2394 asection *input_section,
2396 Elf_Internal_Rela *relocs,
2397 Elf_Internal_Sym *local_syms,
2398 asection **local_sections)
2400 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2401 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2402 Elf_Internal_Rela *rel, *relend;
2403 /* Assume success. */
2404 bfd_boolean ret = TRUE;
2405 struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2407 bfd_vma *local_got_offsets;
2408 asection *sgot, *splt, *sreloc;
2409 bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2414 dynobj = htab->root.dynobj;
2415 local_got_offsets = elf_local_got_offsets (input_bfd);
2422 relend = relocs + input_section->reloc_count;
2423 for (; rel < relend; rel++)
2426 reloc_howto_type *howto;
2427 unsigned long r_symndx;
2428 struct elf_link_hash_entry *h;
2429 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2430 ensure it's zero (we use REL relocs, not RELA). Therefore this
2431 should be assigning zero to `addend', but for clarity we use
2433 bfd_vma addend = rel->r_addend;
2434 bfd_vma offset = rel->r_offset;
2436 Elf_Internal_Sym *sym;
2438 const char *sym_name;
2439 bfd_reloc_status_type r;
2440 const char *errmsg = NULL;
2441 bfd_boolean use_rel = FALSE;
2444 r_type = ELF32_R_TYPE (rel->r_info);
2445 if (r_type < 0 || r_type >= (int) R_M32R_max)
2447 (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2450 bfd_set_error (bfd_error_bad_value);
2455 if ( r_type == R_M32R_GNU_VTENTRY
2456 || r_type == R_M32R_GNU_VTINHERIT
2457 || r_type == R_M32R_NONE
2458 || r_type == R_M32R_RELA_GNU_VTENTRY
2459 || r_type == R_M32R_RELA_GNU_VTINHERIT)
2462 if (r_type <= R_M32R_GNU_VTENTRY)
2465 howto = m32r_elf_howto_table + r_type;
2466 r_symndx = ELF32_R_SYM (rel->r_info);
2472 if (r_symndx < symtab_hdr->sh_info)
2475 sym = local_syms + r_symndx;
2476 sec = local_sections[r_symndx];
2477 sym_name = "<local symbol>";
2481 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2482 addend = rel->r_addend;
2486 relocation = (sec->output_section->vma
2487 + sec->output_offset
2493 /* External symbol. */
2496 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2498 if (info->wrap_hash != NULL
2499 && (input_section->flags & SEC_DEBUGGING) != 0)
2500 h = ((struct elf_link_hash_entry *)
2501 unwrap_hash_lookup (info, input_bfd, &h->root));
2503 while (h->root.type == bfd_link_hash_indirect
2504 || h->root.type == bfd_link_hash_warning)
2505 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2506 sym_name = h->root.root.string;
2508 if (h->root.type == bfd_link_hash_defined
2509 || h->root.type == bfd_link_hash_defweak)
2512 sec = h->root.u.def.section;
2514 dyn = htab->root.dynamic_sections_created;
2515 sec = h->root.u.def.section;
2516 if (r_type == R_M32R_GOTPC24
2517 || (r_type == R_M32R_GOTPC_HI_ULO
2518 || r_type == R_M32R_GOTPC_HI_SLO
2519 || r_type == R_M32R_GOTPC_LO)
2520 || (r_type == R_M32R_26_PLTREL
2521 && h->plt.offset != (bfd_vma) -1)
2522 || ((r_type == R_M32R_GOT24
2523 || r_type == R_M32R_GOT16_HI_ULO
2524 || r_type == R_M32R_GOT16_HI_SLO
2525 || r_type == R_M32R_GOT16_LO)
2526 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2527 bfd_link_pic (info),
2529 && (! bfd_link_pic (info)
2530 || (! info->symbolic && h->dynindx != -1)
2531 || !h->def_regular))
2532 || (bfd_link_pic (info)
2533 && ((! info->symbolic && h->dynindx != -1)
2535 && (((r_type == R_M32R_16_RELA
2536 || r_type == R_M32R_32_RELA
2537 || r_type == R_M32R_24_RELA
2538 || r_type == R_M32R_HI16_ULO_RELA
2539 || r_type == R_M32R_HI16_SLO_RELA
2540 || r_type == R_M32R_LO16_RELA)
2541 && !h->forced_local)
2542 || r_type == R_M32R_REL32
2543 || r_type == R_M32R_10_PCREL_RELA
2544 || r_type == R_M32R_18_PCREL_RELA
2545 || r_type == R_M32R_26_PCREL_RELA)
2546 && ((input_section->flags & SEC_ALLOC) != 0
2547 /* DWARF will emit R_M32R_16(24,32) relocations
2548 in its sections against symbols defined
2549 externally in shared libraries. We can't do
2550 anything with them here. */
2551 || ((input_section->flags & SEC_DEBUGGING) != 0
2552 && h->def_dynamic))))
2554 /* In these cases, we don't need the relocation
2555 value. We check specially because in some
2556 obscure cases sec->output_section will be NULL. */
2558 else if (sec->output_section != NULL)
2559 relocation = (h->root.u.def.value
2560 + sec->output_section->vma
2561 + sec->output_offset);
2562 else if (!bfd_link_relocatable (info)
2563 && (_bfd_elf_section_offset (output_bfd, info,
2568 (*_bfd_error_handler)
2569 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2572 (long) rel->r_offset,
2574 h->root.root.string);
2577 else if (h->root.type == bfd_link_hash_undefweak)
2579 else if (info->unresolved_syms_in_objects == RM_IGNORE
2580 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2582 else if (!bfd_link_relocatable (info))
2584 if (! ((*info->callbacks->undefined_symbol)
2585 (info, h->root.root.string, input_bfd,
2586 input_section, offset,
2587 (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2588 || ELF_ST_VISIBILITY (h->other)))))
2593 if (sec != NULL && discarded_section (sec))
2594 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2595 rel, 1, relend, howto, 0, contents);
2597 if (bfd_link_relocatable (info) && !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)
2604 rel->r_addend += sec->output_offset;
2608 if (bfd_link_relocatable (info) && use_rel)
2610 /* This is a relocatable link. We don't have to change
2611 anything, unless the reloc is against a section symbol,
2612 in which case we have to adjust according to where the
2613 section symbol winds up in the output section. */
2614 if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2617 addend += sec->output_offset;
2619 /* If partial_inplace, we need to store any additional addend
2620 back in the section. */
2621 if (! howto->partial_inplace)
2623 /* ??? Here is a nice place to call a special_function
2625 if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2626 r = _bfd_relocate_contents (howto, input_bfd,
2627 addend, contents + offset);
2630 Elf_Internal_Rela *lorel;
2632 /* We allow an arbitrary number of HI16 relocs before the
2633 LO16 reloc. This permits gcc to emit the HI and LO relocs
2635 for (lorel = rel + 1;
2637 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2638 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2642 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2644 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2649 r = _bfd_relocate_contents (howto, input_bfd,
2650 addend, contents + offset);
2655 /* Sanity check the address. */
2656 if (offset > high_address)
2658 r = bfd_reloc_outofrange;
2662 switch ((int) r_type)
2665 /* Relocation is relative to the start of the global offset
2666 table (for ld24 rx, #uimm24). eg access at label+addend
2668 ld24 rx. #label@GOTOFF + addend
2671 BFD_ASSERT (sgot != NULL);
2673 relocation = -(relocation - sgot->output_section->vma);
2674 rel->r_addend = -rel->r_addend;
2677 case R_M32R_GOTOFF_HI_ULO:
2678 case R_M32R_GOTOFF_HI_SLO:
2679 case R_M32R_GOTOFF_LO:
2680 BFD_ASSERT (sgot != NULL);
2682 relocation -= sgot->output_section->vma;
2684 if ((r_type == R_M32R_GOTOFF_HI_SLO)
2685 && ((relocation + rel->r_addend) & 0x8000))
2686 rel->r_addend += 0x10000;
2689 case R_M32R_GOTPC24:
2690 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2691 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2693 relocation = sgot->output_section->vma;
2696 case R_M32R_GOTPC_HI_ULO:
2697 case R_M32R_GOTPC_HI_SLO:
2698 case R_M32R_GOTPC_LO:
2700 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2702 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2703 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2706 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2707 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2709 relocation = sgot->output_section->vma;
2710 relocation -= (input_section->output_section->vma
2711 + input_section->output_offset
2713 if ((r_type == R_M32R_GOTPC_HI_SLO)
2714 && ((relocation + rel->r_addend) & 0x8000))
2715 rel->r_addend += 0x10000;
2719 case R_M32R_GOT16_HI_ULO:
2720 case R_M32R_GOT16_HI_SLO:
2721 case R_M32R_GOT16_LO:
2724 /* Relocation is to the entry for this symbol in the global
2726 BFD_ASSERT (sgot != NULL);
2733 off = h->got.offset;
2734 BFD_ASSERT (off != (bfd_vma) -1);
2736 dyn = htab->root.dynamic_sections_created;
2737 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2738 bfd_link_pic (info),
2740 || (bfd_link_pic (info)
2746 /* This is actually a static link, or it is a
2747 -Bsymbolic link and the symbol is defined
2748 locally, or the symbol was forced to be local
2749 because of a version file. We must initialize
2750 this entry in the global offset table. Since the
2751 offset must always be a multiple of 4, we use the
2752 least significant bit to record whether we have
2753 initialized it already.
2755 When doing a dynamic link, we create a .rela.got
2756 relocation entry to initialize the value. This
2757 is done in the finish_dynamic_symbol routine. */
2762 bfd_put_32 (output_bfd, relocation,
2763 sgot->contents + off);
2768 relocation = sgot->output_offset + off;
2775 BFD_ASSERT (local_got_offsets != NULL
2776 && local_got_offsets[r_symndx] != (bfd_vma) -1);
2778 off = local_got_offsets[r_symndx];
2780 /* The offset must always be a multiple of 4. We use
2781 the least significant bit to record whether we have
2782 already processed this entry. */
2787 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2789 if (bfd_link_pic (info))
2792 Elf_Internal_Rela outrel;
2794 /* We need to generate a R_M32R_RELATIVE reloc
2795 for the dynamic linker. */
2796 srelgot = bfd_get_linker_section (dynobj,
2798 BFD_ASSERT (srelgot != NULL);
2800 outrel.r_offset = (sgot->output_section->vma
2801 + sgot->output_offset
2803 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2804 outrel.r_addend = relocation;
2805 loc = srelgot->contents;
2806 loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2807 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2808 ++srelgot->reloc_count;
2811 local_got_offsets[r_symndx] |= 1;
2814 relocation = sgot->output_offset + off;
2816 if ((r_type == R_M32R_GOT16_HI_SLO)
2817 && ((relocation + rel->r_addend) & 0x8000))
2818 rel->r_addend += 0x10000;
2822 case R_M32R_26_PLTREL:
2823 /* Relocation is to the entry for this symbol in the
2824 procedure linkage table. */
2826 /* The native assembler will generate a 26_PLTREL reloc
2827 for a local symbol if you assemble a call from one
2828 section to another when using -K pic. */
2832 if (h->forced_local)
2835 if (h->plt.offset == (bfd_vma) -1)
2836 /* We didn't make a PLT entry for this symbol. This
2837 happens when statically linking PIC code, or when
2838 using -Bsymbolic. */
2841 relocation = (splt->output_section->vma
2842 + splt->output_offset
2846 case R_M32R_HI16_SLO_RELA:
2847 if ((relocation + rel->r_addend) & 0x8000)
2848 rel->r_addend += 0x10000;
2851 case R_M32R_16_RELA:
2852 case R_M32R_24_RELA:
2853 case R_M32R_32_RELA:
2855 case R_M32R_10_PCREL_RELA:
2856 case R_M32R_18_PCREL_RELA:
2857 case R_M32R_26_PCREL_RELA:
2858 case R_M32R_HI16_ULO_RELA:
2859 case R_M32R_LO16_RELA:
2860 if (bfd_link_pic (info)
2861 && r_symndx != STN_UNDEF
2862 && (input_section->flags & SEC_ALLOC) != 0
2863 && (( r_type != R_M32R_10_PCREL_RELA
2864 && r_type != R_M32R_18_PCREL_RELA
2865 && r_type != R_M32R_26_PCREL_RELA
2866 && r_type != R_M32R_REL32)
2869 && (! info->symbolic
2870 || !h->def_regular))))
2872 Elf_Internal_Rela outrel;
2873 bfd_boolean skip, relocate;
2876 /* When generating a shared object, these relocations
2877 are copied into the output file to be resolved at run
2881 sreloc = _bfd_elf_get_dynamic_reloc_section
2882 (input_bfd, input_section, /*rela?*/ TRUE);
2890 outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2894 if (outrel.r_offset == (bfd_vma) -1)
2896 else if (outrel.r_offset == (bfd_vma) -2)
2897 skip = relocate = TRUE;
2898 outrel.r_offset += (input_section->output_section->vma
2899 + input_section->output_offset);
2902 memset (&outrel, 0, sizeof outrel);
2903 else if ( r_type == R_M32R_10_PCREL_RELA
2904 || r_type == R_M32R_18_PCREL_RELA
2905 || r_type == R_M32R_26_PCREL_RELA
2906 || r_type == R_M32R_REL32)
2908 BFD_ASSERT (h != NULL && h->dynindx != -1);
2909 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2910 outrel.r_addend = rel->r_addend;
2914 /* h->dynindx may be -1 if this symbol was marked to
2917 || ((info->symbolic || h->dynindx == -1)
2921 outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2922 outrel.r_addend = relocation + rel->r_addend;
2926 BFD_ASSERT (h->dynindx != -1);
2927 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2928 outrel.r_addend = relocation + rel->r_addend;
2932 loc = sreloc->contents;
2933 loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2934 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2935 ++sreloc->reloc_count;
2937 /* If this reloc is against an external symbol, we do
2938 not want to fiddle with the addend. Otherwise, we
2939 need to include the symbol value so that it becomes
2940 an addend for the dynamic reloc. */
2945 else if (r_type != R_M32R_10_PCREL_RELA)
2949 case (int) R_M32R_10_PCREL :
2950 r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2952 sec, relocation, addend);
2955 case (int) R_M32R_HI16_SLO :
2956 case (int) R_M32R_HI16_ULO :
2958 Elf_Internal_Rela *lorel;
2960 /* We allow an arbitrary number of HI16 relocs before the
2961 LO16 reloc. This permits gcc to emit the HI and LO relocs
2963 for (lorel = rel + 1;
2965 && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2966 || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2970 && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2972 m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2973 contents, relocation + addend);
2977 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2979 relocation, addend);
2984 case (int) R_M32R_SDA16_RELA:
2985 case (int) R_M32R_SDA16 :
2989 BFD_ASSERT (sec != NULL);
2990 name = bfd_get_section_name (sec->owner, sec);
2992 if ( strcmp (name, ".sdata") == 0
2993 || strcmp (name, ".sbss") == 0
2994 || strcmp (name, ".scommon") == 0)
2997 bfd *out_bfd = sec->output_section->owner;
2999 r = m32r_elf_final_sda_base (out_bfd, info,
3002 if (r != bfd_reloc_ok)
3008 /* At this point `relocation' contains the object's
3010 relocation -= sda_base;
3011 /* Now it contains the offset from _SDA_BASE_. */
3015 (*_bfd_error_handler)
3016 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3020 m32r_elf_howto_table[(int) r_type].name);
3021 /*bfd_set_error (bfd_error_bad_value); ??? why? */
3028 default : /* OLD_M32R_RELOC */
3030 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3032 relocation, addend);
3036 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3037 contents, rel->r_offset,
3038 relocation, rel->r_addend);
3044 if (r != bfd_reloc_ok)
3046 /* FIXME: This should be generic enough to go in a utility. */
3050 name = h->root.root.string;
3053 name = (bfd_elf_string_from_elf_section
3054 (input_bfd, symtab_hdr->sh_link, sym->st_name));
3055 if (name == NULL || *name == '\0')
3056 name = bfd_section_name (input_bfd, sec);
3064 case bfd_reloc_overflow:
3065 if (! ((*info->callbacks->reloc_overflow)
3066 (info, (h ? &h->root : NULL), name, howto->name,
3067 (bfd_vma) 0, input_bfd, input_section, offset)))
3071 case bfd_reloc_undefined:
3072 if (! ((*info->callbacks->undefined_symbol)
3073 (info, name, input_bfd, input_section,
3078 case bfd_reloc_outofrange:
3079 errmsg = _("internal error: out of range error");
3082 case bfd_reloc_notsupported:
3083 errmsg = _("internal error: unsupported relocation error");
3086 case bfd_reloc_dangerous:
3087 errmsg = _("internal error: dangerous error");
3091 errmsg = _("internal error: unknown error");
3095 if (!((*info->callbacks->warning)
3096 (info, errmsg, name, input_bfd, input_section,
3107 /* Finish up dynamic symbol handling. We set the contents of various
3108 dynamic sections here. */
3111 m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3112 struct bfd_link_info *info,
3113 struct elf_link_hash_entry *h,
3114 Elf_Internal_Sym *sym)
3116 struct elf_m32r_link_hash_table *htab;
3120 printf ("m32r_elf_finish_dynamic_symbol()\n");
3123 htab = m32r_elf_hash_table (info);
3127 if (h->plt.offset != (bfd_vma) -1)
3135 Elf_Internal_Rela rela;
3137 /* This symbol has an entry in the procedure linkage table. Set
3140 BFD_ASSERT (h->dynindx != -1);
3143 sgot = htab->sgotplt;
3144 srela = htab->srelplt;
3145 BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3147 /* Get the index in the procedure linkage table which
3148 corresponds to this symbol. This is the index of this symbol
3149 in all the symbols for which we are making plt entries. The
3150 first entry in the procedure linkage table is reserved. */
3151 plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3153 /* Get the offset into the .got table of the entry that
3154 corresponds to this function. Each .got entry is 4 bytes.
3155 The first three are reserved. */
3156 got_offset = (plt_index + 3) * 4;
3158 /* Fill in the entry in the procedure linkage table. */
3159 if (! bfd_link_pic (info))
3161 bfd_put_32 (output_bfd,
3163 + (((sgot->output_section->vma
3164 + sgot->output_offset
3165 + got_offset) >> 16) & 0xffff)),
3166 splt->contents + h->plt.offset);
3167 bfd_put_32 (output_bfd,
3169 + ((sgot->output_section->vma
3170 + sgot->output_offset
3171 + got_offset) & 0xffff)),
3172 splt->contents + h->plt.offset + 4);
3173 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3174 splt->contents + h->plt.offset + 8);
3175 bfd_put_32 (output_bfd,
3177 + plt_index * sizeof (Elf32_External_Rela)),
3178 splt->contents + h->plt.offset + 12);
3179 bfd_put_32 (output_bfd,
3181 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3182 splt->contents + h->plt.offset + 16);
3186 bfd_put_32 (output_bfd,
3187 PLT_ENTRY_WORD0 + got_offset,
3188 splt->contents + h->plt.offset);
3189 bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3190 splt->contents + h->plt.offset + 4);
3191 bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3192 splt->contents + h->plt.offset + 8);
3193 bfd_put_32 (output_bfd,
3195 + plt_index * sizeof (Elf32_External_Rela)),
3196 splt->contents + h->plt.offset + 12);
3197 bfd_put_32 (output_bfd,
3199 + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3200 splt->contents + h->plt.offset + 16);
3203 /* Fill in the entry in the global offset table. */
3204 bfd_put_32 (output_bfd,
3205 (splt->output_section->vma
3206 + splt->output_offset
3208 + 12), /* same offset */
3209 sgot->contents + got_offset);
3211 /* Fill in the entry in the .rela.plt section. */
3212 rela.r_offset = (sgot->output_section->vma
3213 + sgot->output_offset
3215 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3217 loc = srela->contents;
3218 loc += plt_index * sizeof (Elf32_External_Rela);
3219 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3221 if (!h->def_regular)
3223 /* Mark the symbol as undefined, rather than as defined in
3224 the .plt section. Leave the value alone. */
3225 sym->st_shndx = SHN_UNDEF;
3229 if (h->got.offset != (bfd_vma) -1)
3233 Elf_Internal_Rela rela;
3235 /* This symbol has an entry in the global offset table. Set it
3239 srela = htab->srelgot;
3240 BFD_ASSERT (sgot != NULL && srela != NULL);
3242 rela.r_offset = (sgot->output_section->vma
3243 + sgot->output_offset
3244 + (h->got.offset &~ 1));
3246 /* If this is a -Bsymbolic link, and the symbol is defined
3247 locally, we just want to emit a RELATIVE reloc. Likewise if
3248 the symbol was forced to be local because of a version file.
3249 The entry in the global offset table will already have been
3250 initialized in the relocate_section function. */
3251 if (bfd_link_pic (info)
3257 rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3258 rela.r_addend = (h->root.u.def.value
3259 + h->root.u.def.section->output_section->vma
3260 + h->root.u.def.section->output_offset);
3264 BFD_ASSERT ((h->got.offset & 1) == 0);
3265 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3266 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3270 loc = srela->contents;
3271 loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3272 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3273 ++srela->reloc_count;
3279 Elf_Internal_Rela rela;
3281 /* This symbols needs a copy reloc. Set it up. */
3283 BFD_ASSERT (h->dynindx != -1
3284 && (h->root.type == bfd_link_hash_defined
3285 || h->root.type == bfd_link_hash_defweak));
3287 s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
3288 BFD_ASSERT (s != NULL);
3290 rela.r_offset = (h->root.u.def.value
3291 + h->root.u.def.section->output_section->vma
3292 + h->root.u.def.section->output_offset);
3293 rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3296 loc += s->reloc_count * sizeof (Elf32_External_Rela);
3297 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3301 /* Mark some specially defined symbols as absolute. */
3302 if (h == htab->root.hdynamic || h == htab->root.hgot)
3303 sym->st_shndx = SHN_ABS;
3309 /* Finish up the dynamic sections. */
3312 m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3313 struct bfd_link_info *info)
3315 struct elf_m32r_link_hash_table *htab;
3321 printf ("m32r_elf_finish_dynamic_sections()\n");
3324 htab = m32r_elf_hash_table (info);
3328 dynobj = htab->root.dynobj;
3330 sgot = htab->sgotplt;
3331 sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3333 if (htab->root.dynamic_sections_created)
3336 Elf32_External_Dyn *dyncon, *dynconend;
3338 BFD_ASSERT (sgot != NULL && sdyn != NULL);
3340 dyncon = (Elf32_External_Dyn *) sdyn->contents;
3341 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3343 for (; dyncon < dynconend; dyncon++)
3345 Elf_Internal_Dyn dyn;
3348 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3361 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3362 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3367 dyn.d_un.d_val = s->size;
3368 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3372 /* My reading of the SVR4 ABI indicates that the
3373 procedure linkage table relocs (DT_JMPREL) should be
3374 included in the overall relocs (DT_RELA). This is
3375 what Solaris does. However, UnixWare can not handle
3376 that case. Therefore, we override the DT_RELASZ entry
3377 here to make it not include the JMPREL relocs. Since
3378 the linker script arranges for .rela.plt to follow all
3379 other relocation sections, we don't have to worry
3380 about changing the DT_RELA entry. */
3381 if (htab->srelplt != NULL)
3384 dyn.d_un.d_val -= s->size;
3386 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3391 /* Fill in the first entry in the procedure linkage table. */
3393 if (splt && splt->size > 0)
3395 if (bfd_link_pic (info))
3397 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3398 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3399 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3400 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3401 bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3406 /* addr = .got + 4 */
3407 addr = sgot->output_section->vma + sgot->output_offset + 4;
3408 bfd_put_32 (output_bfd,
3409 PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3411 bfd_put_32 (output_bfd,
3412 PLT0_ENTRY_WORD1 | (addr & 0xffff),
3413 splt->contents + 4);
3414 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3415 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3416 bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3419 elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3424 /* Fill in the first three entries in the global offset table. */
3425 if (sgot && sgot->size > 0)
3428 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3430 bfd_put_32 (output_bfd,
3431 sdyn->output_section->vma + sdyn->output_offset,
3433 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3434 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3436 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3443 /* Set the right machine number. */
3446 m32r_elf_object_p (bfd *abfd)
3448 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3451 case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
3452 case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3453 case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3458 /* Store the machine number in the flags field. */
3461 m32r_elf_final_write_processing (bfd *abfd,
3462 bfd_boolean linker ATTRIBUTE_UNUSED)
3466 switch (bfd_get_mach (abfd))
3469 case bfd_mach_m32r: val = E_M32R_ARCH; break;
3470 case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3471 case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3474 elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3475 elf_elfheader (abfd)->e_flags |= val;
3478 /* Function to keep M32R specific file flags. */
3481 m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3483 BFD_ASSERT (!elf_flags_init (abfd)
3484 || elf_elfheader (abfd)->e_flags == flags);
3486 elf_elfheader (abfd)->e_flags = flags;
3487 elf_flags_init (abfd) = TRUE;
3491 /* Merge backend specific data from an object file to the output
3492 object file when linking. */
3495 m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3500 if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3501 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3504 in_flags = elf_elfheader (ibfd)->e_flags;
3505 out_flags = elf_elfheader (obfd)->e_flags;
3507 if (! elf_flags_init (obfd))
3509 /* If the input is the default architecture then do not
3510 bother setting the flags for the output architecture,
3511 instead allow future merges to do this. If no future
3512 merges ever set these flags then they will retain their
3513 unitialised values, which surprise surprise, correspond
3514 to the default values. */
3515 if (bfd_get_arch_info (ibfd)->the_default)
3518 elf_flags_init (obfd) = TRUE;
3519 elf_elfheader (obfd)->e_flags = in_flags;
3521 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3522 && bfd_get_arch_info (obfd)->the_default)
3523 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3524 bfd_get_mach (ibfd));
3529 /* Check flag compatibility. */
3530 if (in_flags == out_flags)
3533 if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3535 if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3536 || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3537 || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
3539 (*_bfd_error_handler)
3540 (_("%B: Instruction set mismatch with previous modules"), ibfd);
3542 bfd_set_error (bfd_error_bad_value);
3550 /* Display the flags field. */
3553 m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3555 FILE * file = (FILE *) ptr;
3557 BFD_ASSERT (abfd != NULL && ptr != NULL);
3559 _bfd_elf_print_private_bfd_data (abfd, ptr);
3561 fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3563 switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3566 case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
3567 case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3568 case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3577 m32r_elf_gc_mark_hook (asection *sec,
3578 struct bfd_link_info *info,
3579 Elf_Internal_Rela *rel,
3580 struct elf_link_hash_entry *h,
3581 Elf_Internal_Sym *sym)
3584 switch (ELF32_R_TYPE (rel->r_info))
3586 case R_M32R_GNU_VTINHERIT:
3587 case R_M32R_GNU_VTENTRY:
3588 case R_M32R_RELA_GNU_VTINHERIT:
3589 case R_M32R_RELA_GNU_VTENTRY:
3593 return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3597 m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3598 struct bfd_link_info *info ATTRIBUTE_UNUSED,
3599 asection *sec ATTRIBUTE_UNUSED,
3600 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3602 /* Update the got entry reference counts for the section being removed. */
3603 Elf_Internal_Shdr *symtab_hdr;
3604 struct elf_link_hash_entry **sym_hashes;
3605 bfd_signed_vma *local_got_refcounts;
3606 const Elf_Internal_Rela *rel, *relend;
3608 if (bfd_link_relocatable (info))
3611 elf_section_data (sec)->local_dynrel = NULL;
3613 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3614 sym_hashes = elf_sym_hashes (abfd);
3615 local_got_refcounts = elf_local_got_refcounts (abfd);
3617 relend = relocs + sec->reloc_count;
3618 for (rel = relocs; rel < relend; rel++)
3620 unsigned long r_symndx;
3621 struct elf_link_hash_entry *h = NULL;
3623 r_symndx = ELF32_R_SYM (rel->r_info);
3624 if (r_symndx >= symtab_hdr->sh_info)
3626 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3627 while (h->root.type == bfd_link_hash_indirect
3628 || h->root.type == bfd_link_hash_warning)
3629 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3632 switch (ELF32_R_TYPE (rel->r_info))
3634 case R_M32R_GOT16_HI_ULO:
3635 case R_M32R_GOT16_HI_SLO:
3636 case R_M32R_GOT16_LO:
3638 case R_M32R_GOTOFF_HI_ULO:
3639 case R_M32R_GOTOFF_HI_SLO:
3640 case R_M32R_GOTOFF_LO:
3642 case R_M32R_GOTPC_HI_ULO:
3643 case R_M32R_GOTPC_HI_SLO:
3644 case R_M32R_GOTPC_LO:
3645 case R_M32R_GOTPC24:
3648 if (h->got.refcount > 0)
3653 if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3654 local_got_refcounts[r_symndx]--;
3658 case R_M32R_16_RELA:
3659 case R_M32R_24_RELA:
3660 case R_M32R_32_RELA:
3662 case R_M32R_HI16_ULO_RELA:
3663 case R_M32R_HI16_SLO_RELA:
3664 case R_M32R_LO16_RELA:
3665 case R_M32R_SDA16_RELA:
3666 case R_M32R_10_PCREL_RELA:
3667 case R_M32R_18_PCREL_RELA:
3668 case R_M32R_26_PCREL_RELA:
3671 struct elf_m32r_link_hash_entry *eh;
3672 struct elf_m32r_dyn_relocs **pp;
3673 struct elf_m32r_dyn_relocs *p;
3675 if (!bfd_link_pic (info) && h->plt.refcount > 0)
3676 h->plt.refcount -= 1;
3678 eh = (struct elf_m32r_link_hash_entry *) h;
3680 for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3683 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3684 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3685 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3686 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3696 case R_M32R_26_PLTREL:
3699 if (h->plt.refcount > 0)
3712 /* Look through the relocs for a section during the first phase.
3713 Since we don't do .gots or .plts, we just need to consider the
3714 virtual table relocs for gc. */
3717 m32r_elf_check_relocs (bfd *abfd,
3718 struct bfd_link_info *info,
3720 const Elf_Internal_Rela *relocs)
3722 Elf_Internal_Shdr *symtab_hdr;
3723 struct elf_link_hash_entry **sym_hashes;
3724 const Elf_Internal_Rela *rel;
3725 const Elf_Internal_Rela *rel_end;
3726 struct elf_m32r_link_hash_table *htab;
3730 if (bfd_link_relocatable (info))
3734 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3735 sym_hashes = elf_sym_hashes (abfd);
3737 htab = m32r_elf_hash_table (info);
3741 dynobj = htab->root.dynobj;
3743 rel_end = relocs + sec->reloc_count;
3744 for (rel = relocs; rel < rel_end; rel++)
3747 struct elf_link_hash_entry *h;
3748 unsigned long r_symndx;
3750 r_symndx = ELF32_R_SYM (rel->r_info);
3751 r_type = ELF32_R_TYPE (rel->r_info);
3752 if (r_symndx < symtab_hdr->sh_info)
3756 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3757 while (h->root.type == bfd_link_hash_indirect
3758 || h->root.type == bfd_link_hash_warning)
3759 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3761 /* PR15323, ref flags aren't set for references in the same
3763 h->root.non_ir_ref = 1;
3766 /* Some relocs require a global offset table. */
3767 if (htab->sgot == NULL)
3771 case R_M32R_GOT16_HI_ULO:
3772 case R_M32R_GOT16_HI_SLO:
3774 case R_M32R_GOTOFF_HI_ULO:
3775 case R_M32R_GOTOFF_HI_SLO:
3776 case R_M32R_GOTOFF_LO:
3777 case R_M32R_GOT16_LO:
3778 case R_M32R_GOTPC24:
3779 case R_M32R_GOTPC_HI_ULO:
3780 case R_M32R_GOTPC_HI_SLO:
3781 case R_M32R_GOTPC_LO:
3784 htab->root.dynobj = dynobj = abfd;
3785 if (! create_got_section (dynobj, info))
3796 case R_M32R_GOT16_HI_ULO:
3797 case R_M32R_GOT16_HI_SLO:
3798 case R_M32R_GOT16_LO:
3802 h->got.refcount += 1;
3805 bfd_signed_vma *local_got_refcounts;
3807 /* This is a global offset table entry for a local
3809 local_got_refcounts = elf_local_got_refcounts (abfd);
3810 if (local_got_refcounts == NULL)
3814 size = symtab_hdr->sh_info;
3815 size *= sizeof (bfd_signed_vma);
3816 local_got_refcounts = bfd_zalloc (abfd, size);
3817 if (local_got_refcounts == NULL)
3819 elf_local_got_refcounts (abfd) = local_got_refcounts;
3821 local_got_refcounts[r_symndx] += 1;
3825 case R_M32R_26_PLTREL:
3826 /* This symbol requires a procedure linkage table entry. We
3827 actually build the entry in adjust_dynamic_symbol,
3828 because this might be a case of linking PIC code without
3829 linking in any dynamic objects, in which case we don't
3830 need to generate a procedure linkage table after all. */
3832 /* If this is a local symbol, we resolve it directly without
3833 creating a procedure linkage table entry. */
3837 if (h->forced_local)
3841 h->plt.refcount += 1;
3844 case R_M32R_16_RELA:
3845 case R_M32R_24_RELA:
3846 case R_M32R_32_RELA:
3848 case R_M32R_HI16_ULO_RELA:
3849 case R_M32R_HI16_SLO_RELA:
3850 case R_M32R_LO16_RELA:
3851 case R_M32R_SDA16_RELA:
3852 case R_M32R_10_PCREL_RELA:
3853 case R_M32R_18_PCREL_RELA:
3854 case R_M32R_26_PCREL_RELA:
3856 if (h != NULL && !bfd_link_pic (info))
3859 h->plt.refcount += 1;
3862 /* If we are creating a shared library, and this is a reloc
3863 against a global symbol, or a non PC relative reloc
3864 against a local symbol, then we need to copy the reloc
3865 into the shared library. However, if we are linking with
3866 -Bsymbolic, we do not need to copy a reloc against a
3867 global symbol which is defined in an object we are
3868 including in the link (i.e., DEF_REGULAR is set). At
3869 this point we have not seen all the input files, so it is
3870 possible that DEF_REGULAR is not set now but will be set
3871 later (it is never cleared). We account for that
3872 possibility below by storing information in the
3873 dyn_relocs field of the hash table entry. A similar
3874 situation occurs when creating shared libraries and symbol
3875 visibility changes render the symbol local.
3877 If on the other hand, we are creating an executable, we
3878 may need to keep relocations for symbols satisfied by a
3879 dynamic library if we manage to avoid copy relocs for the
3881 if ((bfd_link_pic (info)
3882 && (sec->flags & SEC_ALLOC) != 0
3883 && (( r_type != R_M32R_26_PCREL_RELA
3884 && r_type != R_M32R_18_PCREL_RELA
3885 && r_type != R_M32R_10_PCREL_RELA
3886 && r_type != R_M32R_REL32)
3888 && (! info->symbolic
3889 || h->root.type == bfd_link_hash_defweak
3890 || !h->def_regular))))
3891 || (!bfd_link_pic (info)
3892 && (sec->flags & SEC_ALLOC) != 0
3894 && (h->root.type == bfd_link_hash_defweak
3895 || !h->def_regular)))
3897 struct elf_m32r_dyn_relocs *p;
3898 struct elf_m32r_dyn_relocs **head;
3901 htab->root.dynobj = dynobj = abfd;
3903 /* When creating a shared object, we must copy these
3904 relocs into the output file. We create a reloc
3905 section in dynobj and make room for the reloc. */
3908 sreloc = _bfd_elf_make_dynamic_reloc_section
3909 (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3915 /* If this is a global symbol, we count the number of
3916 relocations we need for this symbol. */
3918 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3921 /* Track dynamic relocs needed for local syms too. */
3924 Elf_Internal_Sym *isym;
3926 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3931 s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3935 vpp = &elf_section_data (s)->local_dynrel;
3936 head = (struct elf_m32r_dyn_relocs **) vpp;
3940 if (p == NULL || p->sec != sec)
3942 bfd_size_type amt = sizeof (*p);
3944 p = bfd_alloc (dynobj, amt);
3955 if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3956 || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3957 || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3958 || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3963 /* This relocation describes the C++ object vtable hierarchy.
3964 Reconstruct it for later use during GC. */
3965 case R_M32R_RELA_GNU_VTINHERIT:
3966 case R_M32R_GNU_VTINHERIT:
3967 if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3971 /* This relocation describes which C++ vtable entries are actually
3972 used. Record for later use during GC. */
3973 case R_M32R_GNU_VTENTRY:
3974 BFD_ASSERT (h != NULL);
3976 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
3979 case R_M32R_RELA_GNU_VTENTRY:
3980 BFD_ASSERT (h != NULL);
3982 && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3991 static const struct bfd_elf_special_section m32r_elf_special_sections[] =
3993 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3994 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3995 { NULL, 0, 0, 0, 0 }
3998 static enum elf_reloc_type_class
3999 m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4000 const asection *rel_sec ATTRIBUTE_UNUSED,
4001 const Elf_Internal_Rela *rela)
4003 switch ((int) ELF32_R_TYPE (rela->r_info))
4005 case R_M32R_RELATIVE: return reloc_class_relative;
4006 case R_M32R_JMP_SLOT: return reloc_class_plt;
4007 case R_M32R_COPY: return reloc_class_copy;
4008 default: return reloc_class_normal;
4012 #define ELF_ARCH bfd_arch_m32r
4013 #define ELF_TARGET_ID M32R_ELF_DATA
4014 #define ELF_MACHINE_CODE EM_M32R
4015 #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
4016 #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
4018 #define TARGET_BIG_SYM m32r_elf32_vec
4019 #define TARGET_BIG_NAME "elf32-m32r"
4020 #define TARGET_LITTLE_SYM m32r_elf32_le_vec
4021 #define TARGET_LITTLE_NAME "elf32-m32rle"
4023 #define elf_info_to_howto m32r_info_to_howto
4024 #define elf_info_to_howto_rel m32r_info_to_howto_rel
4025 #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4026 #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4027 #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4028 #define elf_backend_relocate_section m32r_elf_relocate_section
4029 #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4030 #define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4031 #define elf_backend_check_relocs m32r_elf_check_relocs
4033 #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4034 #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4035 #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4036 #define elf_backend_omit_section_dynsym \
4037 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4038 #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4039 #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4040 #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4041 #define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4042 #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4044 #define elf_backend_can_gc_sections 1
4046 #define elf_backend_rela_normal 1
4048 #define elf_backend_can_refcount 1
4049 #define elf_backend_want_got_plt 1
4050 #define elf_backend_plt_readonly 1
4051 #define elf_backend_want_plt_sym 0
4052 #define elf_backend_got_header_size 12
4054 #define elf_backend_may_use_rel_p 1
4055 #ifdef USE_M32R_OLD_RELOC
4056 #define elf_backend_default_use_rela_p 0
4057 #define elf_backend_may_use_rela_p 0
4059 #define elf_backend_default_use_rela_p 1
4060 #define elf_backend_may_use_rela_p 1
4063 #define elf_backend_object_p m32r_elf_object_p
4064 #define elf_backend_final_write_processing m32r_elf_final_write_processing
4065 #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4066 #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4067 #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
4068 #define elf_backend_special_sections m32r_elf_special_sections
4070 #include "elf32-target.h"
4072 #undef ELF_MAXPAGESIZE
4073 #define ELF_MAXPAGESIZE 0x1000
4075 #undef TARGET_BIG_SYM
4076 #define TARGET_BIG_SYM m32r_elf32_linux_vec
4077 #undef TARGET_BIG_NAME
4078 #define TARGET_BIG_NAME "elf32-m32r-linux"
4079 #undef TARGET_LITTLE_SYM
4080 #define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
4081 #undef TARGET_LITTLE_NAME
4082 #define TARGET_LITTLE_NAME "elf32-m32rle-linux"
4084 #define elf32_bed elf32_m32r_lin_bed
4086 #include "elf32-target.h"