1 /* M32R-specific support for 32-bit ELF.
2 Copyright (C) 1996-2020 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 /* xgettext:c-format */
1286 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1288 bfd_set_error (bfd_error_bad_value
);
1291 cache_ptr
->howto
= &m32r_elf_howto_table
[r_type
];
1296 m32r_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
1298 Elf_Internal_Rela
*dst
)
1300 unsigned int r_type
= ELF32_R_TYPE (dst
->r_info
);
1302 if (r_type
== (unsigned int) R_M32R_NONE
1303 || ((r_type
> (unsigned int) R_M32R_GNU_VTENTRY
)
1304 && (r_type
< (unsigned int) R_M32R_max
)))
1306 cache_ptr
->howto
= &m32r_elf_howto_table
[r_type
];
1310 /* xgettext:c-format */
1311 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd
, r_type
);
1312 bfd_set_error (bfd_error_bad_value
);
1317 /* Given a BFD section, try to locate the corresponding ELF section
1321 _bfd_m32r_elf_section_from_bfd_section (bfd
*abfd ATTRIBUTE_UNUSED
,
1325 if (strcmp (bfd_section_name (sec
), ".scommon") == 0)
1327 *retval
= SHN_M32R_SCOMMON
;
1333 /* M32R ELF uses two common sections. One is the usual one, and the other
1334 is for small objects. All the small objects are kept together, and then
1335 referenced via one register, which yields faster assembler code. It is
1336 up to the compiler to emit an instruction to load the register with
1337 _SDA_BASE. This is what we use for the small common section. This
1338 approach is copied from elf32-mips.c. */
1339 static asection m32r_elf_scom_section
;
1340 static asymbol m32r_elf_scom_symbol
;
1341 static asymbol
*m32r_elf_scom_symbol_ptr
;
1343 /* Handle the special M32R section numbers that a symbol may use. */
1346 _bfd_m32r_elf_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
, asymbol
*asym
)
1348 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;
1350 switch (elfsym
->internal_elf_sym
.st_shndx
)
1352 case SHN_M32R_SCOMMON
:
1353 if (m32r_elf_scom_section
.name
== NULL
)
1355 /* Initialize the small common section. */
1356 m32r_elf_scom_section
.name
= ".scommon";
1357 m32r_elf_scom_section
.flags
= SEC_IS_COMMON
| SEC_SMALL_DATA
;
1358 m32r_elf_scom_section
.output_section
= &m32r_elf_scom_section
;
1359 m32r_elf_scom_section
.symbol
= &m32r_elf_scom_symbol
;
1360 m32r_elf_scom_section
.symbol_ptr_ptr
= &m32r_elf_scom_symbol_ptr
;
1361 m32r_elf_scom_symbol
.name
= ".scommon";
1362 m32r_elf_scom_symbol
.flags
= BSF_SECTION_SYM
;
1363 m32r_elf_scom_symbol
.section
= &m32r_elf_scom_section
;
1364 m32r_elf_scom_symbol_ptr
= &m32r_elf_scom_symbol
;
1366 asym
->section
= &m32r_elf_scom_section
;
1367 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
1372 /* Hook called by the linker routine which adds symbols from an object
1373 file. We must handle the special M32R section numbers here.
1374 We also keep watching for whether we need to create the sdata special
1378 m32r_elf_add_symbol_hook (bfd
*abfd
,
1379 struct bfd_link_info
*info
,
1380 Elf_Internal_Sym
*sym
,
1382 flagword
*flagsp ATTRIBUTE_UNUSED
,
1386 if (! bfd_link_relocatable (info
)
1387 && (*namep
)[0] == '_' && (*namep
)[1] == 'S'
1388 && strcmp (*namep
, "_SDA_BASE_") == 0
1389 && is_elf_hash_table (info
->hash
))
1391 /* This is simpler than using _bfd_elf_create_linker_section
1392 (our needs are simpler than ppc's needs). Also
1393 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1394 section already exists a new one is created that follows it which
1395 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1396 struct elf_link_hash_entry
*h
;
1397 struct bfd_link_hash_entry
*bh
;
1398 asection
*s
= bfd_get_section_by_name (abfd
, ".sdata");
1400 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
1403 flagword flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
1404 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
1406 s
= bfd_make_section_anyway_with_flags (abfd
, ".sdata",
1410 if (!bfd_set_section_alignment (s
, 2))
1414 bh
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_",
1415 FALSE
, FALSE
, FALSE
);
1417 if ((bh
== NULL
|| bh
->type
== bfd_link_hash_undefined
)
1418 && !(_bfd_generic_link_add_one_symbol (info
,
1426 get_elf_backend_data (abfd
)->collect
,
1429 h
= (struct elf_link_hash_entry
*) bh
;
1430 h
->type
= STT_OBJECT
;
1433 switch (sym
->st_shndx
)
1435 case SHN_M32R_SCOMMON
:
1436 *secp
= bfd_make_section_old_way (abfd
, ".scommon");
1437 (*secp
)->flags
|= SEC_IS_COMMON
| SEC_SMALL_DATA
;
1438 *valp
= sym
->st_size
;
1445 /* We have to figure out the SDA_BASE value, so that we can adjust the
1446 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1447 BFD. If we can't find it, we're stuck. We cache it in the ELF
1448 target data. We don't need to adjust the symbol value for an
1449 external symbol if we are producing relocatable output. */
1451 static bfd_reloc_status_type
1452 m32r_elf_final_sda_base (bfd
*output_bfd
,
1453 struct bfd_link_info
*info
,
1454 const char **error_message
,
1457 if (elf_gp (output_bfd
) == 0)
1459 struct bfd_link_hash_entry
*h
;
1461 h
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_", FALSE
, FALSE
, TRUE
);
1462 if (h
!= NULL
&& h
->type
== bfd_link_hash_defined
)
1463 elf_gp (output_bfd
) = (h
->u
.def
.value
1464 + h
->u
.def
.section
->output_section
->vma
1465 + h
->u
.def
.section
->output_offset
);
1468 /* Only get the error once. */
1469 *psb
= elf_gp (output_bfd
) = 4;
1471 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1472 return bfd_reloc_dangerous
;
1475 *psb
= elf_gp (output_bfd
);
1476 return bfd_reloc_ok
;
1479 /* Return size of a PLT entry. */
1480 #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1482 /* The m32r linker needs to keep track of the number of relocs that it
1483 decides to copy in check_relocs for each symbol. This is so that
1484 it can discard PC relative relocs if it doesn't need them when
1485 linking with -Bsymbolic. We store the information in a field
1486 extending the regular ELF linker hash table. */
1488 /* This structure keeps track of the number of PC relative relocs we
1489 have copied for a given symbol. */
1491 struct elf_m32r_pcrel_relocs_copied
1494 struct elf_m32r_pcrel_relocs_copied
*next
;
1495 /* A section in dynobj. */
1497 /* Number of relocs copied in this section. */
1498 bfd_size_type count
;
1501 /* Traverse an m32r ELF linker hash table. */
1503 #define m32r_elf_link_hash_traverse(table, func, info) \
1504 (elf_link_hash_traverse \
1506 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
1509 /* Get the m32r ELF linker hash table from a link_info structure. */
1511 #define m32r_elf_hash_table(p) \
1512 ((is_elf_hash_table ((p)->hash) \
1513 && elf_hash_table_id (elf_hash_table (p)) == M32R_ELF_DATA) \
1514 ? (struct elf_link_hash_table *) (p)->hash : NULL)
1516 /* Create an m32r ELF linker hash table. */
1518 static struct bfd_link_hash_table
*
1519 m32r_elf_link_hash_table_create (bfd
*abfd
)
1521 struct elf_link_hash_table
*ret
;
1522 size_t amt
= sizeof (struct elf_link_hash_table
);
1524 ret
= bfd_zmalloc (amt
);
1528 if (!_bfd_elf_link_hash_table_init (ret
, abfd
,
1529 _bfd_elf_link_hash_newfunc
,
1530 sizeof (struct elf_link_hash_entry
),
1540 /* Create dynamic sections when linking against a dynamic object. */
1543 m32r_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
1545 struct elf_link_hash_table
*htab
;
1546 flagword flags
, pltflags
;
1548 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1549 int ptralign
= 2; /* 32bit */
1551 htab
= m32r_elf_hash_table (info
);
1555 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1556 .rel[a].bss sections. */
1557 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
1558 | SEC_LINKER_CREATED
);
1561 pltflags
|= SEC_CODE
;
1562 if (bed
->plt_not_loaded
)
1563 pltflags
&= ~ (SEC_LOAD
| SEC_HAS_CONTENTS
);
1564 if (bed
->plt_readonly
)
1565 pltflags
|= SEC_READONLY
;
1567 s
= bfd_make_section_anyway_with_flags (abfd
, ".plt", pltflags
);
1570 || !bfd_set_section_alignment (s
, bed
->plt_alignment
))
1573 if (bed
->want_plt_sym
)
1575 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1577 struct bfd_link_hash_entry
*bh
= NULL
;
1578 struct elf_link_hash_entry
*h
;
1580 if (! (_bfd_generic_link_add_one_symbol
1581 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
1582 (bfd_vma
) 0, NULL
, FALSE
,
1583 get_elf_backend_data (abfd
)->collect
, &bh
)))
1585 h
= (struct elf_link_hash_entry
*) bh
;
1587 h
->type
= STT_OBJECT
;
1590 if (bfd_link_pic (info
)
1591 && ! bfd_elf_link_record_dynamic_symbol (info
, h
))
1595 s
= bfd_make_section_anyway_with_flags (abfd
,
1596 bed
->default_use_rela_p
1597 ? ".rela.plt" : ".rel.plt",
1598 flags
| SEC_READONLY
);
1601 || !bfd_set_section_alignment (s
, ptralign
))
1604 if (htab
->sgot
== NULL
1605 && !_bfd_elf_create_got_section (abfd
, info
))
1608 if (bed
->want_dynbss
)
1610 /* The .dynbss section is a place to put symbols which are defined
1611 by dynamic objects, are referenced by regular objects, and are
1612 not functions. We must allocate space for them in the process
1613 image and use a R_*_COPY reloc to tell the dynamic linker to
1614 initialize them at run time. The linker script puts the .dynbss
1615 section into the .bss section of the final image. */
1616 s
= bfd_make_section_anyway_with_flags (abfd
, ".dynbss",
1617 SEC_ALLOC
| SEC_LINKER_CREATED
);
1621 /* The .rel[a].bss section holds copy relocs. This section is not
1622 normally needed. We need to create it here, though, so that the
1623 linker will map it to an output section. We can't just create it
1624 only if we need it, because we will not know whether we need it
1625 until we have seen all the input files, and the first time the
1626 main linker code calls BFD after examining all the input files
1627 (size_dynamic_sections) the input sections have already been
1628 mapped to the output sections. If the section turns out not to
1629 be needed, we can discard it later. We will never need this
1630 section when generating a shared object, since they do not use
1632 if (! bfd_link_pic (info
))
1634 s
= bfd_make_section_anyway_with_flags (abfd
,
1635 (bed
->default_use_rela_p
1636 ? ".rela.bss" : ".rel.bss"),
1637 flags
| SEC_READONLY
);
1640 || !bfd_set_section_alignment (s
, ptralign
))
1649 /* Adjust a symbol defined by a dynamic object and referenced by a
1650 regular object. The current definition is in some section of the
1651 dynamic object, but we're not including those sections. We have to
1652 change the definition to something the rest of the link can
1656 m32r_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1657 struct elf_link_hash_entry
*h
)
1659 struct elf_link_hash_table
*htab
;
1664 printf ("m32r_elf_adjust_dynamic_symbol()\n");
1667 dynobj
= elf_hash_table (info
)->dynobj
;
1669 /* Make sure we know what is going on here. */
1670 BFD_ASSERT (dynobj
!= NULL
1675 && !h
->def_regular
)));
1677 /* If this is a function, put it in the procedure linkage table. We
1678 will fill in the contents of the procedure linkage table later,
1679 when we know the address of the .got section. */
1680 if (h
->type
== STT_FUNC
1683 if (! bfd_link_pic (info
)
1686 && h
->root
.type
!= bfd_link_hash_undefweak
1687 && h
->root
.type
!= bfd_link_hash_undefined
)
1689 /* This case can occur if we saw a PLT reloc in an input
1690 file, but the symbol was never referred to by a dynamic
1691 object. In such a case, we don't actually need to build
1692 a procedure linkage table, and we can just do a PCREL
1694 h
->plt
.offset
= (bfd_vma
) -1;
1701 h
->plt
.offset
= (bfd_vma
) -1;
1703 /* If this is a weak symbol, and there is a real definition, the
1704 processor independent code will have arranged for us to see the
1705 real definition first, and we can just use the same value. */
1706 if (h
->is_weakalias
)
1708 struct elf_link_hash_entry
*def
= weakdef (h
);
1709 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
1710 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
1711 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
1715 /* This is a reference to a symbol defined by a dynamic object which
1716 is not a function. */
1718 /* If we are creating a shared library, we must presume that the
1719 only references to the symbol are via the global offset table.
1720 For such cases we need not do anything here; the relocations will
1721 be handled correctly by relocate_section. */
1722 if (bfd_link_pic (info
))
1725 /* If there are no references to this symbol that do not use the
1726 GOT, we don't need to generate a copy reloc. */
1727 if (!h
->non_got_ref
)
1730 /* If -z nocopyreloc was given, we won't generate them either. */
1731 if (0 && info
->nocopyreloc
)
1737 /* If we don't find any dynamic relocs in read-only sections, then
1738 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1739 if (0 && !_bfd_elf_readonly_dynrelocs (h
))
1745 /* We must allocate the symbol in our .dynbss section, which will
1746 become part of the .bss section of the executable. There will be
1747 an entry for this symbol in the .dynsym section. The dynamic
1748 object will contain position independent code, so all references
1749 from the dynamic object to this symbol will go through the global
1750 offset table. The dynamic linker will use the .dynsym entry to
1751 determine the address it must put in the global offset table, so
1752 both the dynamic object and the regular object will refer to the
1753 same memory location for the variable. */
1755 htab
= m32r_elf_hash_table (info
);
1760 BFD_ASSERT (s
!= NULL
);
1762 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1763 to copy the initial value out of the dynamic object and into the
1764 runtime process image. We need to remember the offset into the
1765 .rela.bss section we are going to use. */
1766 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
1770 srel
= htab
->srelbss
;
1771 BFD_ASSERT (srel
!= NULL
);
1772 srel
->size
+= sizeof (Elf32_External_Rela
);
1776 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
1779 /* Allocate space in .plt, .got and associated reloc sections for
1783 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void * inf
)
1785 struct bfd_link_info
*info
;
1786 struct elf_link_hash_table
*htab
;
1787 struct elf_dyn_relocs
*p
;
1789 if (h
->root
.type
== bfd_link_hash_indirect
)
1792 info
= (struct bfd_link_info
*) inf
;
1793 htab
= m32r_elf_hash_table (info
);
1797 if (htab
->dynamic_sections_created
1798 && h
->plt
.refcount
> 0)
1800 /* Make sure this symbol is output as a dynamic symbol.
1801 Undefined weak syms won't yet be marked as dynamic. */
1802 if (h
->dynindx
== -1
1803 && !h
->forced_local
)
1805 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1809 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), h
))
1811 asection
*s
= htab
->splt
;
1813 /* If this is the first .plt entry, make room for the special
1816 s
->size
+= PLT_ENTRY_SIZE
;
1818 h
->plt
.offset
= s
->size
;
1820 /* If this symbol is not defined in a regular file, and we are
1821 not generating a shared library, then set the symbol to this
1822 location in the .plt. This is required to make function
1823 pointers compare as equal between the normal executable and
1824 the shared library. */
1825 if (! bfd_link_pic (info
)
1828 h
->root
.u
.def
.section
= s
;
1829 h
->root
.u
.def
.value
= h
->plt
.offset
;
1832 /* Make room for this entry. */
1833 s
->size
+= PLT_ENTRY_SIZE
;
1835 /* We also need to make an entry in the .got.plt section, which
1836 will be placed in the .got section by the linker script. */
1837 htab
->sgotplt
->size
+= 4;
1839 /* We also need to make an entry in the .rel.plt section. */
1840 htab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
1844 h
->plt
.offset
= (bfd_vma
) -1;
1850 h
->plt
.offset
= (bfd_vma
) -1;
1854 if (h
->got
.refcount
> 0)
1859 /* Make sure this symbol is output as a dynamic symbol.
1860 Undefined weak syms won't yet be marked as dynamic. */
1861 if (h
->dynindx
== -1
1862 && !h
->forced_local
)
1864 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1870 h
->got
.offset
= s
->size
;
1872 dyn
= htab
->dynamic_sections_created
;
1873 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
))
1874 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
1877 h
->got
.offset
= (bfd_vma
) -1;
1879 if (h
->dyn_relocs
== NULL
)
1882 /* In the shared -Bsymbolic case, discard space allocated for
1883 dynamic pc-relative relocs against symbols which turn out to be
1884 defined in regular objects. For the normal shared case, discard
1885 space for pc-relative relocs that have become local due to symbol
1886 visibility changes. */
1888 if (bfd_link_pic (info
))
1894 struct elf_dyn_relocs
**pp
;
1896 for (pp
= &h
->dyn_relocs
; (p
= *pp
) != NULL
;)
1898 p
->count
-= p
->pc_count
;
1907 /* Also discard relocs on undefined weak syms with non-default
1909 if (h
->dyn_relocs
!= NULL
1910 && h
->root
.type
== bfd_link_hash_undefweak
)
1912 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
1913 h
->dyn_relocs
= NULL
;
1915 /* Make sure undefined weak symbols are output as a dynamic
1917 else if (h
->dynindx
== -1
1918 && !h
->forced_local
)
1920 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1927 /* For the non-shared case, discard space for relocs against
1928 symbols which turn out to need copy relocs or are not
1934 || (htab
->dynamic_sections_created
1935 && (h
->root
.type
== bfd_link_hash_undefweak
1936 || h
->root
.type
== bfd_link_hash_undefined
))))
1938 /* Make sure this symbol is output as a dynamic symbol.
1939 Undefined weak syms won't yet be marked as dynamic. */
1940 if (h
->dynindx
== -1
1941 && !h
->forced_local
)
1943 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1947 /* If that succeeded, we know we'll be keeping all the
1949 if (h
->dynindx
!= -1)
1953 h
->dyn_relocs
= NULL
;
1958 /* Finally, allocate space. */
1959 for (p
= h
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1961 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
1962 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
1968 /* Set the sizes of the dynamic sections. */
1971 m32r_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
1972 struct bfd_link_info
*info
)
1974 struct elf_link_hash_table
*htab
;
1981 printf ("m32r_elf_size_dynamic_sections()\n");
1984 htab
= m32r_elf_hash_table (info
);
1988 dynobj
= htab
->dynobj
;
1989 BFD_ASSERT (dynobj
!= NULL
);
1991 if (htab
->dynamic_sections_created
)
1993 /* Set the contents of the .interp section to the interpreter. */
1994 if (bfd_link_executable (info
) && !info
->nointerp
)
1996 s
= bfd_get_linker_section (dynobj
, ".interp");
1997 BFD_ASSERT (s
!= NULL
);
1998 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
1999 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2003 /* Set up .got offsets for local syms, and space for local dynamic
2005 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2007 bfd_signed_vma
*local_got
;
2008 bfd_signed_vma
*end_local_got
;
2009 bfd_size_type locsymcount
;
2010 Elf_Internal_Shdr
*symtab_hdr
;
2013 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2016 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2018 struct elf_dyn_relocs
*p
;
2020 for (p
= ((struct elf_dyn_relocs
*)
2021 elf_section_data (s
)->local_dynrel
);
2025 if (! bfd_is_abs_section (p
->sec
)
2026 && bfd_is_abs_section (p
->sec
->output_section
))
2028 /* Input section has been discarded, either because
2029 it is a copy of a linkonce section or due to
2030 linker script /DISCARD/, so we'll be discarding
2033 else if (p
->count
!= 0)
2035 srel
= elf_section_data (p
->sec
)->sreloc
;
2036 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
2037 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2038 info
->flags
|= DF_TEXTREL
;
2043 local_got
= elf_local_got_refcounts (ibfd
);
2047 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2048 locsymcount
= symtab_hdr
->sh_info
;
2049 end_local_got
= local_got
+ locsymcount
;
2051 srel
= htab
->srelgot
;
2052 for (; local_got
< end_local_got
; ++local_got
)
2056 *local_got
= s
->size
;
2058 if (bfd_link_pic (info
))
2059 srel
->size
+= sizeof (Elf32_External_Rela
);
2062 *local_got
= (bfd_vma
) -1;
2066 /* Allocate global sym .plt and .got entries, and space for global
2067 sym dynamic relocs. */
2068 elf_link_hash_traverse (htab
, allocate_dynrelocs
, info
);
2070 /* We now have determined the sizes of the various dynamic sections.
2071 Allocate memory for them. */
2073 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
2075 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
2080 || s
== htab
->sgotplt
2081 || s
== htab
->sdynbss
)
2083 /* Strip this section if we don't need it; see the
2086 else if (CONST_STRNEQ (bfd_section_name (s
), ".rela"))
2088 if (s
->size
!= 0 && s
!= htab
->srelplt
)
2091 /* We use the reloc_count field as a counter if we need
2092 to copy relocs into the output file. */
2096 /* It's not one of our sections, so don't allocate space. */
2101 /* If we don't need this section, strip it from the
2102 output file. This is mostly to handle .rela.bss and
2103 .rela.plt. We must create both sections in
2104 create_dynamic_sections, because they must be created
2105 before the linker maps input sections to output
2106 sections. The linker does that before
2107 adjust_dynamic_symbol is called, and it is that
2108 function which decides whether anything needs to go
2109 into these sections. */
2110 s
->flags
|= SEC_EXCLUDE
;
2114 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
2117 /* Allocate memory for the section contents. We use bfd_zalloc
2118 here in case unused entries are not reclaimed before the
2119 section's contents are written out. This should not happen,
2120 but this way if it does, we get a R_M32R_NONE reloc instead
2122 s
->contents
= bfd_zalloc (dynobj
, s
->size
);
2123 if (s
->contents
== NULL
)
2127 return _bfd_elf_add_dynamic_tags (output_bfd
, info
, relocs
);
2130 /* Relocate an M32R/D ELF section.
2131 There is some attempt to make this function usable for many architectures,
2132 both for RELA and REL type relocs, if only to serve as a learning tool.
2134 The RELOCATE_SECTION function is called by the new ELF backend linker
2135 to handle the relocations for a section.
2137 The relocs are always passed as Rela structures; if the section
2138 actually uses Rel structures, the r_addend field will always be
2141 This function is responsible for adjust the section contents as
2142 necessary, and (if using Rela relocs and generating a
2143 relocatable output file) adjusting the reloc addend as
2146 This function does not have to worry about setting the reloc
2147 address or the reloc symbol index.
2149 LOCAL_SYMS is a pointer to the swapped in local symbols.
2151 LOCAL_SECTIONS is an array giving the section in the input file
2152 corresponding to the st_shndx field of each local symbol.
2154 The global hash table entry for the global symbols can be found
2155 via elf_sym_hashes (input_bfd).
2157 When generating relocatable output, this function must handle
2158 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2159 going to be the section symbol corresponding to the output
2160 section, which means that the addend must be adjusted
2164 m32r_elf_relocate_section (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2165 struct bfd_link_info
*info
,
2167 asection
*input_section
,
2169 Elf_Internal_Rela
*relocs
,
2170 Elf_Internal_Sym
*local_syms
,
2171 asection
**local_sections
)
2173 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2174 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
2175 Elf_Internal_Rela
*rel
, *relend
;
2176 /* Assume success. */
2177 bfd_boolean ret
= TRUE
;
2178 struct elf_link_hash_table
*htab
= m32r_elf_hash_table (info
);
2179 bfd_vma
*local_got_offsets
;
2180 asection
*sgot
, *splt
, *sreloc
;
2181 bfd_vma high_address
= bfd_get_section_limit (input_bfd
, input_section
);
2186 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2193 relend
= relocs
+ input_section
->reloc_count
;
2194 for (; rel
< relend
; rel
++)
2197 reloc_howto_type
*howto
;
2198 unsigned long r_symndx
;
2199 struct elf_link_hash_entry
*h
;
2200 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2201 ensure it's zero (we use REL relocs, not RELA). Therefore this
2202 should be assigning zero to `addend', but for clarity we use
2204 bfd_vma addend
= rel
->r_addend
;
2205 bfd_vma offset
= rel
->r_offset
;
2207 Elf_Internal_Sym
*sym
;
2209 const char *sym_name
;
2210 bfd_reloc_status_type r
;
2211 const char *errmsg
= NULL
;
2212 bfd_boolean use_rel
= FALSE
;
2215 r_type
= ELF32_R_TYPE (rel
->r_info
);
2216 if (r_type
< 0 || r_type
>= (int) R_M32R_max
)
2218 /* xgettext:c-format */
2219 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2220 input_bfd
, (int) r_type
);
2221 bfd_set_error (bfd_error_bad_value
);
2226 if ( r_type
== R_M32R_GNU_VTENTRY
2227 || r_type
== R_M32R_GNU_VTINHERIT
2228 || r_type
== R_M32R_NONE
2229 || r_type
== R_M32R_RELA_GNU_VTENTRY
2230 || r_type
== R_M32R_RELA_GNU_VTINHERIT
)
2233 if (r_type
<= R_M32R_GNU_VTENTRY
)
2236 howto
= m32r_elf_howto_table
+ r_type
;
2237 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2243 if (r_symndx
< symtab_hdr
->sh_info
)
2246 sym
= local_syms
+ r_symndx
;
2247 sec
= local_sections
[r_symndx
];
2248 sym_name
= "<local symbol>";
2252 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2253 addend
= rel
->r_addend
;
2257 relocation
= (sec
->output_section
->vma
2258 + sec
->output_offset
2264 /* External symbol. */
2267 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2269 if (info
->wrap_hash
!= NULL
2270 && (input_section
->flags
& SEC_DEBUGGING
) != 0)
2271 h
= ((struct elf_link_hash_entry
*)
2272 unwrap_hash_lookup (info
, input_bfd
, &h
->root
));
2274 while (h
->root
.type
== bfd_link_hash_indirect
2275 || h
->root
.type
== bfd_link_hash_warning
)
2276 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2277 sym_name
= h
->root
.root
.string
;
2279 if (h
->root
.type
== bfd_link_hash_defined
2280 || h
->root
.type
== bfd_link_hash_defweak
)
2283 sec
= h
->root
.u
.def
.section
;
2285 dyn
= htab
->dynamic_sections_created
;
2286 sec
= h
->root
.u
.def
.section
;
2287 if (r_type
== R_M32R_GOTPC24
2288 || (r_type
== R_M32R_GOTPC_HI_ULO
2289 || r_type
== R_M32R_GOTPC_HI_SLO
2290 || r_type
== R_M32R_GOTPC_LO
)
2291 || (r_type
== R_M32R_26_PLTREL
2292 && h
->plt
.offset
!= (bfd_vma
) -1)
2293 || ((r_type
== R_M32R_GOT24
2294 || r_type
== R_M32R_GOT16_HI_ULO
2295 || r_type
== R_M32R_GOT16_HI_SLO
2296 || r_type
== R_M32R_GOT16_LO
)
2297 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
2298 bfd_link_pic (info
),
2300 && (! bfd_link_pic (info
)
2301 || (! info
->symbolic
&& h
->dynindx
!= -1)
2302 || !h
->def_regular
))
2303 || (bfd_link_pic (info
)
2304 && ((! info
->symbolic
&& h
->dynindx
!= -1)
2306 && (((r_type
== R_M32R_16_RELA
2307 || r_type
== R_M32R_32_RELA
2308 || r_type
== R_M32R_24_RELA
2309 || r_type
== R_M32R_HI16_ULO_RELA
2310 || r_type
== R_M32R_HI16_SLO_RELA
2311 || r_type
== R_M32R_LO16_RELA
)
2312 && !h
->forced_local
)
2313 || r_type
== R_M32R_REL32
2314 || r_type
== R_M32R_10_PCREL_RELA
2315 || r_type
== R_M32R_18_PCREL_RELA
2316 || r_type
== R_M32R_26_PCREL_RELA
)
2317 && ((input_section
->flags
& SEC_ALLOC
) != 0
2318 /* DWARF will emit R_M32R_16(24,32) relocations
2319 in its sections against symbols defined
2320 externally in shared libraries. We can't do
2321 anything with them here. */
2322 || ((input_section
->flags
& SEC_DEBUGGING
) != 0
2323 && h
->def_dynamic
))))
2325 /* In these cases, we don't need the relocation
2326 value. We check specially because in some
2327 obscure cases sec->output_section will be NULL. */
2329 else if (sec
->output_section
!= NULL
)
2330 relocation
= (h
->root
.u
.def
.value
2331 + sec
->output_section
->vma
2332 + sec
->output_offset
);
2333 else if (!bfd_link_relocatable (info
)
2334 && (_bfd_elf_section_offset (output_bfd
, info
,
2340 /* xgettext:c-format */
2341 (_("%pB(%pA+%#" PRIx64
"): unresolvable %s relocation "
2342 "against symbol `%s'"),
2345 (uint64_t) rel
->r_offset
,
2347 h
->root
.root
.string
);
2350 else if (h
->root
.type
== bfd_link_hash_undefweak
)
2352 else if (info
->unresolved_syms_in_objects
== RM_IGNORE
2353 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
2355 else if (!bfd_link_relocatable (info
))
2356 info
->callbacks
->undefined_symbol
2357 (info
, h
->root
.root
.string
, input_bfd
, input_section
, offset
,
2358 (info
->unresolved_syms_in_objects
== RM_DIAGNOSE
2359 && !info
->warn_unresolved_syms
)
2360 || ELF_ST_VISIBILITY (h
->other
));
2363 if (sec
!= NULL
&& discarded_section (sec
))
2364 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
2365 rel
, 1, relend
, howto
, 0, contents
);
2367 if (bfd_link_relocatable (info
) && !use_rel
)
2369 /* This is a relocatable link. We don't have to change
2370 anything, unless the reloc is against a section symbol,
2371 in which case we have to adjust according to where the
2372 section symbol winds up in the output section. */
2373 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
2374 rel
->r_addend
+= sec
->output_offset
;
2378 if (bfd_link_relocatable (info
) && use_rel
)
2380 /* This is a relocatable link. We don't have to change
2381 anything, unless the reloc is against a section symbol,
2382 in which case we have to adjust according to where the
2383 section symbol winds up in the output section. */
2384 if (sym
== NULL
|| ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2387 addend
+= sec
->output_offset
;
2389 /* If partial_inplace, we need to store any additional addend
2390 back in the section. */
2391 if (! howto
->partial_inplace
)
2393 /* ??? Here is a nice place to call a special_function
2395 if (r_type
!= R_M32R_HI16_SLO
&& r_type
!= R_M32R_HI16_ULO
)
2396 r
= _bfd_relocate_contents (howto
, input_bfd
,
2397 addend
, contents
+ offset
);
2400 Elf_Internal_Rela
*lorel
;
2402 /* We allow an arbitrary number of HI16 relocs before the
2403 LO16 reloc. This permits gcc to emit the HI and LO relocs
2405 for (lorel
= rel
+ 1;
2407 && (ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_SLO
2408 || ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_ULO
));
2412 && ELF32_R_TYPE (lorel
->r_info
) == R_M32R_LO16
)
2414 m32r_elf_relocate_hi16 (input_bfd
, r_type
, rel
, lorel
,
2419 r
= _bfd_relocate_contents (howto
, input_bfd
,
2420 addend
, contents
+ offset
);
2425 /* Sanity check the address. */
2426 if (offset
> high_address
)
2428 r
= bfd_reloc_outofrange
;
2432 switch ((int) r_type
)
2435 /* Relocation is relative to the start of the global offset
2436 table (for ld24 rx, #uimm24). eg access at label+addend
2438 ld24 rx. #label@GOTOFF + addend
2441 BFD_ASSERT (sgot
!= NULL
);
2443 relocation
= -(relocation
- sgot
->output_section
->vma
);
2444 rel
->r_addend
= -rel
->r_addend
;
2447 case R_M32R_GOTOFF_HI_ULO
:
2448 case R_M32R_GOTOFF_HI_SLO
:
2449 case R_M32R_GOTOFF_LO
:
2450 BFD_ASSERT (sgot
!= NULL
);
2452 relocation
-= sgot
->output_section
->vma
;
2454 if ((r_type
== R_M32R_GOTOFF_HI_SLO
)
2455 && ((relocation
+ rel
->r_addend
) & 0x8000))
2456 rel
->r_addend
+= 0x10000;
2459 case R_M32R_GOTPC24
:
2460 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2461 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2463 relocation
= sgot
->output_section
->vma
;
2466 case R_M32R_GOTPC_HI_ULO
:
2467 case R_M32R_GOTPC_HI_SLO
:
2468 case R_M32R_GOTPC_LO
:
2470 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2472 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2473 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2476 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2477 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2479 relocation
= sgot
->output_section
->vma
;
2480 relocation
-= (input_section
->output_section
->vma
2481 + input_section
->output_offset
2483 if ((r_type
== R_M32R_GOTPC_HI_SLO
)
2484 && ((relocation
+ rel
->r_addend
) & 0x8000))
2485 rel
->r_addend
+= 0x10000;
2489 case R_M32R_GOT16_HI_ULO
:
2490 case R_M32R_GOT16_HI_SLO
:
2491 case R_M32R_GOT16_LO
:
2494 /* Relocation is to the entry for this symbol in the global
2496 BFD_ASSERT (sgot
!= NULL
);
2503 off
= h
->got
.offset
;
2504 BFD_ASSERT (off
!= (bfd_vma
) -1);
2506 dyn
= htab
->dynamic_sections_created
;
2507 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
2508 bfd_link_pic (info
),
2510 || (bfd_link_pic (info
)
2516 /* This is actually a static link, or it is a
2517 -Bsymbolic link and the symbol is defined
2518 locally, or the symbol was forced to be local
2519 because of a version file. We must initialize
2520 this entry in the global offset table. Since the
2521 offset must always be a multiple of 4, we use the
2522 least significant bit to record whether we have
2523 initialized it already.
2525 When doing a dynamic link, we create a .rela.got
2526 relocation entry to initialize the value. This
2527 is done in the finish_dynamic_symbol routine. */
2532 bfd_put_32 (output_bfd
, relocation
,
2533 sgot
->contents
+ off
);
2538 relocation
= sgot
->output_offset
+ off
;
2545 BFD_ASSERT (local_got_offsets
!= NULL
2546 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
2548 off
= local_got_offsets
[r_symndx
];
2550 /* The offset must always be a multiple of 4. We use
2551 the least significant bit to record whether we have
2552 already processed this entry. */
2557 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
2559 if (bfd_link_pic (info
))
2562 Elf_Internal_Rela outrel
;
2564 /* We need to generate a R_M32R_RELATIVE reloc
2565 for the dynamic linker. */
2566 srelgot
= htab
->srelgot
;
2567 BFD_ASSERT (srelgot
!= NULL
);
2569 outrel
.r_offset
= (sgot
->output_section
->vma
2570 + sgot
->output_offset
2572 outrel
.r_info
= ELF32_R_INFO (0, R_M32R_RELATIVE
);
2573 outrel
.r_addend
= relocation
;
2574 loc
= srelgot
->contents
;
2575 loc
+= srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
2576 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
2577 ++srelgot
->reloc_count
;
2580 local_got_offsets
[r_symndx
] |= 1;
2583 relocation
= sgot
->output_offset
+ off
;
2585 if ((r_type
== R_M32R_GOT16_HI_SLO
)
2586 && ((relocation
+ rel
->r_addend
) & 0x8000))
2587 rel
->r_addend
+= 0x10000;
2591 case R_M32R_26_PLTREL
:
2592 /* Relocation is to the entry for this symbol in the
2593 procedure linkage table. */
2595 /* The native assembler will generate a 26_PLTREL reloc
2596 for a local symbol if you assemble a call from one
2597 section to another when using -K pic. */
2601 if (h
->forced_local
)
2604 if (h
->plt
.offset
== (bfd_vma
) -1)
2605 /* We didn't make a PLT entry for this symbol. This
2606 happens when statically linking PIC code, or when
2607 using -Bsymbolic. */
2610 relocation
= (splt
->output_section
->vma
2611 + splt
->output_offset
2615 case R_M32R_HI16_SLO_RELA
:
2616 if ((relocation
+ rel
->r_addend
) & 0x8000)
2617 rel
->r_addend
+= 0x10000;
2620 case R_M32R_16_RELA
:
2621 case R_M32R_24_RELA
:
2622 case R_M32R_32_RELA
:
2624 case R_M32R_10_PCREL_RELA
:
2625 case R_M32R_18_PCREL_RELA
:
2626 case R_M32R_26_PCREL_RELA
:
2627 case R_M32R_HI16_ULO_RELA
:
2628 case R_M32R_LO16_RELA
:
2629 if (bfd_link_pic (info
)
2630 && r_symndx
!= STN_UNDEF
2631 && (input_section
->flags
& SEC_ALLOC
) != 0
2632 && (( r_type
!= R_M32R_10_PCREL_RELA
2633 && r_type
!= R_M32R_18_PCREL_RELA
2634 && r_type
!= R_M32R_26_PCREL_RELA
2635 && r_type
!= R_M32R_REL32
)
2638 && (! info
->symbolic
2639 || !h
->def_regular
))))
2641 Elf_Internal_Rela outrel
;
2642 bfd_boolean skip
, relocate
;
2645 /* When generating a shared object, these relocations
2646 are copied into the output file to be resolved at run
2650 sreloc
= _bfd_elf_get_dynamic_reloc_section
2651 (input_bfd
, input_section
, /*rela?*/ TRUE
);
2659 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
2663 if (outrel
.r_offset
== (bfd_vma
) -1)
2665 else if (outrel
.r_offset
== (bfd_vma
) -2)
2666 skip
= relocate
= TRUE
;
2667 outrel
.r_offset
+= (input_section
->output_section
->vma
2668 + input_section
->output_offset
);
2671 memset (&outrel
, 0, sizeof outrel
);
2672 else if ( r_type
== R_M32R_10_PCREL_RELA
2673 || r_type
== R_M32R_18_PCREL_RELA
2674 || r_type
== R_M32R_26_PCREL_RELA
2675 || r_type
== R_M32R_REL32
)
2677 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
2678 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
2679 outrel
.r_addend
= rel
->r_addend
;
2683 /* h->dynindx may be -1 if this symbol was marked to
2686 || ((info
->symbolic
|| h
->dynindx
== -1)
2690 outrel
.r_info
= ELF32_R_INFO (0, R_M32R_RELATIVE
);
2691 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2695 BFD_ASSERT (h
->dynindx
!= -1);
2696 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
2697 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2701 loc
= sreloc
->contents
;
2702 loc
+= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
2703 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
2704 ++sreloc
->reloc_count
;
2706 /* If this reloc is against an external symbol, we do
2707 not want to fiddle with the addend. Otherwise, we
2708 need to include the symbol value so that it becomes
2709 an addend for the dynamic reloc. */
2714 else if (r_type
!= R_M32R_10_PCREL_RELA
)
2718 case (int) R_M32R_10_PCREL
:
2719 r
= m32r_elf_do_10_pcrel_reloc (input_bfd
, howto
, input_section
,
2721 sec
, relocation
, addend
);
2724 case (int) R_M32R_HI16_SLO
:
2725 case (int) R_M32R_HI16_ULO
:
2727 Elf_Internal_Rela
*lorel
;
2729 /* We allow an arbitrary number of HI16 relocs before the
2730 LO16 reloc. This permits gcc to emit the HI and LO relocs
2732 for (lorel
= rel
+ 1;
2734 && (ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_SLO
2735 || ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_ULO
));
2739 && ELF32_R_TYPE (lorel
->r_info
) == R_M32R_LO16
)
2741 m32r_elf_relocate_hi16 (input_bfd
, r_type
, rel
, lorel
,
2742 contents
, relocation
+ addend
);
2746 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
2748 relocation
, addend
);
2753 case (int) R_M32R_SDA16_RELA
:
2754 case (int) R_M32R_SDA16
:
2758 BFD_ASSERT (sec
!= NULL
);
2759 name
= bfd_section_name (sec
);
2761 if ( strcmp (name
, ".sdata") == 0
2762 || strcmp (name
, ".sbss") == 0
2763 || strcmp (name
, ".scommon") == 0)
2766 bfd
*out_bfd
= sec
->output_section
->owner
;
2768 r
= m32r_elf_final_sda_base (out_bfd
, info
,
2771 if (r
!= bfd_reloc_ok
)
2777 /* At this point `relocation' contains the object's
2779 relocation
-= sda_base
;
2780 /* Now it contains the offset from _SDA_BASE_. */
2785 /* xgettext:c-format */
2786 (_("%pB: the target (%s) of an %s relocation"
2787 " is in the wrong section (%pA)"),
2790 m32r_elf_howto_table
[(int) r_type
].name
,
2792 /*bfd_set_error (bfd_error_bad_value); ??? why? */
2799 default : /* OLD_M32R_RELOC */
2801 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
2803 relocation
, addend
);
2807 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
2808 contents
, rel
->r_offset
,
2809 relocation
, rel
->r_addend
);
2815 if (r
!= bfd_reloc_ok
)
2817 /* FIXME: This should be generic enough to go in a utility. */
2821 name
= h
->root
.root
.string
;
2824 name
= (bfd_elf_string_from_elf_section
2825 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
2826 if (name
== NULL
|| *name
== '\0')
2827 name
= bfd_section_name (sec
);
2835 case bfd_reloc_overflow
:
2836 (*info
->callbacks
->reloc_overflow
)
2837 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
2838 (bfd_vma
) 0, input_bfd
, input_section
, offset
);
2841 case bfd_reloc_undefined
:
2842 (*info
->callbacks
->undefined_symbol
)
2843 (info
, name
, input_bfd
, input_section
, offset
, TRUE
);
2846 case bfd_reloc_outofrange
:
2847 errmsg
= _("internal error: out of range error");
2850 case bfd_reloc_notsupported
:
2851 errmsg
= _("internal error: unsupported relocation error");
2854 case bfd_reloc_dangerous
:
2855 errmsg
= _("internal error: dangerous error");
2859 errmsg
= _("internal error: unknown error");
2863 (*info
->callbacks
->warning
) (info
, errmsg
, name
, input_bfd
,
2864 input_section
, offset
);
2873 /* Finish up dynamic symbol handling. We set the contents of various
2874 dynamic sections here. */
2877 m32r_elf_finish_dynamic_symbol (bfd
*output_bfd
,
2878 struct bfd_link_info
*info
,
2879 struct elf_link_hash_entry
*h
,
2880 Elf_Internal_Sym
*sym
)
2882 struct elf_link_hash_table
*htab
;
2886 printf ("m32r_elf_finish_dynamic_symbol()\n");
2889 htab
= m32r_elf_hash_table (info
);
2893 if (h
->plt
.offset
!= (bfd_vma
) -1)
2901 Elf_Internal_Rela rela
;
2903 /* This symbol has an entry in the procedure linkage table. Set
2906 BFD_ASSERT (h
->dynindx
!= -1);
2909 sgot
= htab
->sgotplt
;
2910 srela
= htab
->srelplt
;
2911 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
2913 /* Get the index in the procedure linkage table which
2914 corresponds to this symbol. This is the index of this symbol
2915 in all the symbols for which we are making plt entries. The
2916 first entry in the procedure linkage table is reserved. */
2917 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
2919 /* Get the offset into the .got table of the entry that
2920 corresponds to this function. Each .got entry is 4 bytes.
2921 The first three are reserved. */
2922 got_offset
= (plt_index
+ 3) * 4;
2924 /* Fill in the entry in the procedure linkage table. */
2925 if (! bfd_link_pic (info
))
2927 bfd_put_32 (output_bfd
,
2929 + (((sgot
->output_section
->vma
2930 + sgot
->output_offset
2931 + got_offset
) >> 16) & 0xffff)),
2932 splt
->contents
+ h
->plt
.offset
);
2933 bfd_put_32 (output_bfd
,
2935 + ((sgot
->output_section
->vma
2936 + sgot
->output_offset
2937 + got_offset
) & 0xffff)),
2938 splt
->contents
+ h
->plt
.offset
+ 4);
2939 bfd_put_32 (output_bfd
, PLT_ENTRY_WORD2
,
2940 splt
->contents
+ h
->plt
.offset
+ 8);
2941 bfd_put_32 (output_bfd
,
2943 + plt_index
* sizeof (Elf32_External_Rela
)),
2944 splt
->contents
+ h
->plt
.offset
+ 12);
2945 bfd_put_32 (output_bfd
,
2947 + (((unsigned int) ((- (h
->plt
.offset
+ 16)) >> 2)) & 0xffffff)),
2948 splt
->contents
+ h
->plt
.offset
+ 16);
2952 bfd_put_32 (output_bfd
,
2953 PLT_ENTRY_WORD0
+ got_offset
,
2954 splt
->contents
+ h
->plt
.offset
);
2955 bfd_put_32 (output_bfd
, PLT_ENTRY_WORD1
,
2956 splt
->contents
+ h
->plt
.offset
+ 4);
2957 bfd_put_32 (output_bfd
, PLT_ENTRY_WORD2
,
2958 splt
->contents
+ h
->plt
.offset
+ 8);
2959 bfd_put_32 (output_bfd
,
2961 + plt_index
* sizeof (Elf32_External_Rela
)),
2962 splt
->contents
+ h
->plt
.offset
+ 12);
2963 bfd_put_32 (output_bfd
,
2965 + (((unsigned int) ((- (h
->plt
.offset
+ 16)) >> 2)) & 0xffffff)),
2966 splt
->contents
+ h
->plt
.offset
+ 16);
2969 /* Fill in the entry in the global offset table. */
2970 bfd_put_32 (output_bfd
,
2971 (splt
->output_section
->vma
2972 + splt
->output_offset
2974 + 12), /* same offset */
2975 sgot
->contents
+ got_offset
);
2977 /* Fill in the entry in the .rela.plt section. */
2978 rela
.r_offset
= (sgot
->output_section
->vma
2979 + sgot
->output_offset
2981 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_M32R_JMP_SLOT
);
2983 loc
= srela
->contents
;
2984 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
2985 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2987 if (!h
->def_regular
)
2989 /* Mark the symbol as undefined, rather than as defined in
2990 the .plt section. Leave the value alone. */
2991 sym
->st_shndx
= SHN_UNDEF
;
2995 if (h
->got
.offset
!= (bfd_vma
) -1)
2999 Elf_Internal_Rela rela
;
3001 /* This symbol has an entry in the global offset table. Set it
3005 srela
= htab
->srelgot
;
3006 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
3008 rela
.r_offset
= (sgot
->output_section
->vma
3009 + sgot
->output_offset
3010 + (h
->got
.offset
&~ 1));
3012 /* If this is a -Bsymbolic link, and the symbol is defined
3013 locally, we just want to emit a RELATIVE reloc. Likewise if
3014 the symbol was forced to be local because of a version file.
3015 The entry in the global offset table will already have been
3016 initialized in the relocate_section function. */
3017 if (bfd_link_pic (info
)
3023 rela
.r_info
= ELF32_R_INFO (0, R_M32R_RELATIVE
);
3024 rela
.r_addend
= (h
->root
.u
.def
.value
3025 + h
->root
.u
.def
.section
->output_section
->vma
3026 + h
->root
.u
.def
.section
->output_offset
);
3030 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
3031 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ h
->got
.offset
);
3032 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_M32R_GLOB_DAT
);
3036 loc
= srela
->contents
;
3037 loc
+= srela
->reloc_count
* sizeof (Elf32_External_Rela
);
3038 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3039 ++srela
->reloc_count
;
3045 Elf_Internal_Rela rela
;
3047 /* This symbols needs a copy reloc. Set it up. */
3049 BFD_ASSERT (h
->dynindx
!= -1
3050 && (h
->root
.type
== bfd_link_hash_defined
3051 || h
->root
.type
== bfd_link_hash_defweak
));
3053 s
= bfd_get_linker_section (htab
->dynobj
, ".rela.bss");
3054 BFD_ASSERT (s
!= NULL
);
3056 rela
.r_offset
= (h
->root
.u
.def
.value
3057 + h
->root
.u
.def
.section
->output_section
->vma
3058 + h
->root
.u
.def
.section
->output_offset
);
3059 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_M32R_COPY
);
3062 loc
+= s
->reloc_count
* sizeof (Elf32_External_Rela
);
3063 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3067 /* Mark some specially defined symbols as absolute. */
3068 if (h
== htab
->hdynamic
|| h
== htab
->hgot
)
3069 sym
->st_shndx
= SHN_ABS
;
3075 /* Finish up the dynamic sections. */
3078 m32r_elf_finish_dynamic_sections (bfd
*output_bfd
,
3079 struct bfd_link_info
*info
)
3081 struct elf_link_hash_table
*htab
;
3087 printf ("m32r_elf_finish_dynamic_sections()\n");
3090 htab
= m32r_elf_hash_table (info
);
3094 dynobj
= htab
->dynobj
;
3096 sgot
= htab
->sgotplt
;
3097 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
3099 if (htab
->dynamic_sections_created
)
3102 Elf32_External_Dyn
*dyncon
, *dynconend
;
3104 BFD_ASSERT (sgot
!= NULL
&& sdyn
!= NULL
);
3106 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
3107 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
3109 for (; dyncon
< dynconend
; dyncon
++)
3111 Elf_Internal_Dyn dyn
;
3114 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3127 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
3128 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3133 dyn
.d_un
.d_val
= s
->size
;
3134 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3139 /* Fill in the first entry in the procedure linkage table. */
3141 if (splt
&& splt
->size
> 0)
3143 if (bfd_link_pic (info
))
3145 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD0
, splt
->contents
);
3146 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD1
, splt
->contents
+ 4);
3147 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD2
, splt
->contents
+ 8);
3148 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD3
, splt
->contents
+ 12);
3149 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD4
, splt
->contents
+ 16);
3154 /* addr = .got + 4 */
3155 addr
= sgot
->output_section
->vma
+ sgot
->output_offset
+ 4;
3156 bfd_put_32 (output_bfd
,
3157 PLT0_ENTRY_WORD0
| ((addr
>> 16) & 0xffff),
3159 bfd_put_32 (output_bfd
,
3160 PLT0_ENTRY_WORD1
| (addr
& 0xffff),
3161 splt
->contents
+ 4);
3162 bfd_put_32 (output_bfd
, PLT0_ENTRY_WORD2
, splt
->contents
+ 8);
3163 bfd_put_32 (output_bfd
, PLT0_ENTRY_WORD3
, splt
->contents
+ 12);
3164 bfd_put_32 (output_bfd
, PLT0_ENTRY_WORD4
, splt
->contents
+ 16);
3167 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
3172 /* Fill in the first three entries in the global offset table. */
3173 if (sgot
&& sgot
->size
> 0)
3176 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
3178 bfd_put_32 (output_bfd
,
3179 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
3181 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
3182 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
3184 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
3191 /* Set the right machine number. */
3194 m32r_elf_object_p (bfd
*abfd
)
3196 switch (elf_elfheader (abfd
)->e_flags
& EF_M32R_ARCH
)
3199 case E_M32R_ARCH
: (void) bfd_default_set_arch_mach (abfd
, bfd_arch_m32r
, bfd_mach_m32r
); break;
3200 case E_M32RX_ARCH
: (void) bfd_default_set_arch_mach (abfd
, bfd_arch_m32r
, bfd_mach_m32rx
); break;
3201 case E_M32R2_ARCH
: (void) bfd_default_set_arch_mach (abfd
, bfd_arch_m32r
, bfd_mach_m32r2
); break;
3206 /* Store the machine number in the flags field. */
3209 m32r_elf_final_write_processing (bfd
*abfd
)
3213 switch (bfd_get_mach (abfd
))
3216 case bfd_mach_m32r
: val
= E_M32R_ARCH
; break;
3217 case bfd_mach_m32rx
: val
= E_M32RX_ARCH
; break;
3218 case bfd_mach_m32r2
: val
= E_M32R2_ARCH
; break;
3221 elf_elfheader (abfd
)->e_flags
&=~ EF_M32R_ARCH
;
3222 elf_elfheader (abfd
)->e_flags
|= val
;
3223 return _bfd_elf_final_write_processing (abfd
);
3226 /* Function to keep M32R specific file flags. */
3229 m32r_elf_set_private_flags (bfd
*abfd
, flagword flags
)
3231 BFD_ASSERT (!elf_flags_init (abfd
)
3232 || elf_elfheader (abfd
)->e_flags
== flags
);
3234 elf_elfheader (abfd
)->e_flags
= flags
;
3235 elf_flags_init (abfd
) = TRUE
;
3239 /* Merge backend specific data from an object file to the output
3240 object file when linking. */
3243 m32r_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
3245 bfd
*obfd
= info
->output_bfd
;
3249 if ( bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
3250 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
3253 in_flags
= elf_elfheader (ibfd
)->e_flags
;
3254 out_flags
= elf_elfheader (obfd
)->e_flags
;
3256 if (! elf_flags_init (obfd
))
3258 /* If the input is the default architecture then do not
3259 bother setting the flags for the output architecture,
3260 instead allow future merges to do this. If no future
3261 merges ever set these flags then they will retain their
3262 unitialised values, which surprise surprise, correspond
3263 to the default values. */
3264 if (bfd_get_arch_info (ibfd
)->the_default
)
3267 elf_flags_init (obfd
) = TRUE
;
3268 elf_elfheader (obfd
)->e_flags
= in_flags
;
3270 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
3271 && bfd_get_arch_info (obfd
)->the_default
)
3272 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
3273 bfd_get_mach (ibfd
));
3278 /* Check flag compatibility. */
3279 if (in_flags
== out_flags
)
3282 if ((in_flags
& EF_M32R_ARCH
) != (out_flags
& EF_M32R_ARCH
))
3284 if ( ((in_flags
& EF_M32R_ARCH
) != E_M32R_ARCH
)
3285 || ((out_flags
& EF_M32R_ARCH
) == E_M32R_ARCH
)
3286 || ((in_flags
& EF_M32R_ARCH
) == E_M32R2_ARCH
))
3289 (_("%pB: instruction set mismatch with previous modules"), ibfd
);
3291 bfd_set_error (bfd_error_bad_value
);
3299 /* Display the flags field. */
3302 m32r_elf_print_private_bfd_data (bfd
*abfd
, void * ptr
)
3304 FILE * file
= (FILE *) ptr
;
3306 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
3308 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
3310 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
3312 switch (elf_elfheader (abfd
)->e_flags
& EF_M32R_ARCH
)
3315 case E_M32R_ARCH
: fprintf (file
, _(": m32r instructions")); break;
3316 case E_M32RX_ARCH
: fprintf (file
, _(": m32rx instructions")); break;
3317 case E_M32R2_ARCH
: fprintf (file
, _(": m32r2 instructions")); break;
3326 m32r_elf_gc_mark_hook (asection
*sec
,
3327 struct bfd_link_info
*info
,
3328 Elf_Internal_Rela
*rel
,
3329 struct elf_link_hash_entry
*h
,
3330 Elf_Internal_Sym
*sym
)
3333 switch (ELF32_R_TYPE (rel
->r_info
))
3335 case R_M32R_GNU_VTINHERIT
:
3336 case R_M32R_GNU_VTENTRY
:
3337 case R_M32R_RELA_GNU_VTINHERIT
:
3338 case R_M32R_RELA_GNU_VTENTRY
:
3342 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
3345 /* Look through the relocs for a section during the first phase.
3346 Since we don't do .gots or .plts, we just need to consider the
3347 virtual table relocs for gc. */
3350 m32r_elf_check_relocs (bfd
*abfd
,
3351 struct bfd_link_info
*info
,
3353 const Elf_Internal_Rela
*relocs
)
3355 Elf_Internal_Shdr
*symtab_hdr
;
3356 struct elf_link_hash_entry
**sym_hashes
;
3357 const Elf_Internal_Rela
*rel
;
3358 const Elf_Internal_Rela
*rel_end
;
3359 struct elf_link_hash_table
*htab
;
3363 if (bfd_link_relocatable (info
))
3367 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3368 sym_hashes
= elf_sym_hashes (abfd
);
3370 htab
= m32r_elf_hash_table (info
);
3374 dynobj
= htab
->dynobj
;
3376 rel_end
= relocs
+ sec
->reloc_count
;
3377 for (rel
= relocs
; rel
< rel_end
; rel
++)
3380 struct elf_link_hash_entry
*h
;
3381 unsigned long r_symndx
;
3383 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3384 r_type
= ELF32_R_TYPE (rel
->r_info
);
3385 if (r_symndx
< symtab_hdr
->sh_info
)
3389 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3390 while (h
->root
.type
== bfd_link_hash_indirect
3391 || h
->root
.type
== bfd_link_hash_warning
)
3392 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3395 /* Some relocs require a global offset table. */
3396 if (htab
->sgot
== NULL
)
3400 case R_M32R_GOT16_HI_ULO
:
3401 case R_M32R_GOT16_HI_SLO
:
3403 case R_M32R_GOTOFF_HI_ULO
:
3404 case R_M32R_GOTOFF_HI_SLO
:
3405 case R_M32R_GOTOFF_LO
:
3406 case R_M32R_GOT16_LO
:
3407 case R_M32R_GOTPC24
:
3408 case R_M32R_GOTPC_HI_ULO
:
3409 case R_M32R_GOTPC_HI_SLO
:
3410 case R_M32R_GOTPC_LO
:
3413 htab
->dynobj
= dynobj
= abfd
;
3414 if (!_bfd_elf_create_got_section (dynobj
, info
))
3425 case R_M32R_GOT16_HI_ULO
:
3426 case R_M32R_GOT16_HI_SLO
:
3427 case R_M32R_GOT16_LO
:
3431 h
->got
.refcount
+= 1;
3434 bfd_signed_vma
*local_got_refcounts
;
3436 /* This is a global offset table entry for a local
3438 local_got_refcounts
= elf_local_got_refcounts (abfd
);
3439 if (local_got_refcounts
== NULL
)
3443 size
= symtab_hdr
->sh_info
;
3444 size
*= sizeof (bfd_signed_vma
);
3445 local_got_refcounts
= bfd_zalloc (abfd
, size
);
3446 if (local_got_refcounts
== NULL
)
3448 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
3450 local_got_refcounts
[r_symndx
] += 1;
3454 case R_M32R_26_PLTREL
:
3455 /* This symbol requires a procedure linkage table entry. We
3456 actually build the entry in adjust_dynamic_symbol,
3457 because this might be a case of linking PIC code without
3458 linking in any dynamic objects, in which case we don't
3459 need to generate a procedure linkage table after all. */
3461 /* If this is a local symbol, we resolve it directly without
3462 creating a procedure linkage table entry. */
3466 if (h
->forced_local
)
3470 h
->plt
.refcount
+= 1;
3473 case R_M32R_16_RELA
:
3474 case R_M32R_24_RELA
:
3475 case R_M32R_32_RELA
:
3477 case R_M32R_HI16_ULO_RELA
:
3478 case R_M32R_HI16_SLO_RELA
:
3479 case R_M32R_LO16_RELA
:
3480 case R_M32R_SDA16_RELA
:
3481 case R_M32R_10_PCREL_RELA
:
3482 case R_M32R_18_PCREL_RELA
:
3483 case R_M32R_26_PCREL_RELA
:
3485 if (h
!= NULL
&& !bfd_link_pic (info
))
3488 h
->plt
.refcount
+= 1;
3491 /* If we are creating a shared library, and this is a reloc
3492 against a global symbol, or a non PC relative reloc
3493 against a local symbol, then we need to copy the reloc
3494 into the shared library. However, if we are linking with
3495 -Bsymbolic, we do not need to copy a reloc against a
3496 global symbol which is defined in an object we are
3497 including in the link (i.e., DEF_REGULAR is set). At
3498 this point we have not seen all the input files, so it is
3499 possible that DEF_REGULAR is not set now but will be set
3500 later (it is never cleared). We account for that
3501 possibility below by storing information in the
3502 dyn_relocs field of the hash table entry. A similar
3503 situation occurs when creating shared libraries and symbol
3504 visibility changes render the symbol local.
3506 If on the other hand, we are creating an executable, we
3507 may need to keep relocations for symbols satisfied by a
3508 dynamic library if we manage to avoid copy relocs for the
3510 if ((bfd_link_pic (info
)
3511 && (sec
->flags
& SEC_ALLOC
) != 0
3512 && (( r_type
!= R_M32R_26_PCREL_RELA
3513 && r_type
!= R_M32R_18_PCREL_RELA
3514 && r_type
!= R_M32R_10_PCREL_RELA
3515 && r_type
!= R_M32R_REL32
)
3517 && (! info
->symbolic
3518 || h
->root
.type
== bfd_link_hash_defweak
3519 || !h
->def_regular
))))
3520 || (!bfd_link_pic (info
)
3521 && (sec
->flags
& SEC_ALLOC
) != 0
3523 && (h
->root
.type
== bfd_link_hash_defweak
3524 || !h
->def_regular
)))
3526 struct elf_dyn_relocs
*p
;
3527 struct elf_dyn_relocs
**head
;
3530 htab
->dynobj
= dynobj
= abfd
;
3532 /* When creating a shared object, we must copy these
3533 relocs into the output file. We create a reloc
3534 section in dynobj and make room for the reloc. */
3537 sreloc
= _bfd_elf_make_dynamic_reloc_section
3538 (sec
, dynobj
, 2, abfd
, /*rela?*/ TRUE
);
3544 /* If this is a global symbol, we count the number of
3545 relocations we need for this symbol. */
3547 head
= &h
->dyn_relocs
;
3550 /* Track dynamic relocs needed for local syms too. */
3553 Elf_Internal_Sym
*isym
;
3555 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
3560 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
3564 vpp
= &elf_section_data (s
)->local_dynrel
;
3565 head
= (struct elf_dyn_relocs
**) vpp
;
3569 if (p
== NULL
|| p
->sec
!= sec
)
3571 size_t amt
= sizeof (*p
);
3573 p
= bfd_alloc (dynobj
, amt
);
3584 if ( ELF32_R_TYPE (rel
->r_info
) == R_M32R_26_PCREL_RELA
3585 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_18_PCREL_RELA
3586 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_10_PCREL_RELA
3587 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_REL32
)
3592 /* This relocation describes the C++ object vtable hierarchy.
3593 Reconstruct it for later use during GC. */
3594 case R_M32R_RELA_GNU_VTINHERIT
:
3595 case R_M32R_GNU_VTINHERIT
:
3596 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3600 /* This relocation describes which C++ vtable entries are actually
3601 used. Record for later use during GC. */
3602 case R_M32R_GNU_VTENTRY
:
3603 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
3606 case R_M32R_RELA_GNU_VTENTRY
:
3607 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3616 static const struct bfd_elf_special_section m32r_elf_special_sections
[] =
3618 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
3619 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
3620 { NULL
, 0, 0, 0, 0 }
3624 m32r_elf_section_flags (const Elf_Internal_Shdr
*hdr
)
3626 const char *name
= hdr
->bfd_section
->name
;
3628 if (strncmp (name
, ".sbss", 5) == 0
3629 || strncmp (name
, ".sdata", 6) == 0)
3630 hdr
->bfd_section
->flags
|= SEC_SMALL_DATA
;
3635 static enum elf_reloc_type_class
3636 m32r_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3637 const asection
*rel_sec ATTRIBUTE_UNUSED
,
3638 const Elf_Internal_Rela
*rela
)
3640 switch ((int) ELF32_R_TYPE (rela
->r_info
))
3642 case R_M32R_RELATIVE
: return reloc_class_relative
;
3643 case R_M32R_JMP_SLOT
: return reloc_class_plt
;
3644 case R_M32R_COPY
: return reloc_class_copy
;
3645 default: return reloc_class_normal
;
3649 #define ELF_ARCH bfd_arch_m32r
3650 #define ELF_TARGET_ID M32R_ELF_DATA
3651 #define ELF_MACHINE_CODE EM_M32R
3652 #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
3653 #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
3655 #define TARGET_BIG_SYM m32r_elf32_vec
3656 #define TARGET_BIG_NAME "elf32-m32r"
3657 #define TARGET_LITTLE_SYM m32r_elf32_le_vec
3658 #define TARGET_LITTLE_NAME "elf32-m32rle"
3660 #define elf_info_to_howto m32r_info_to_howto
3661 #define elf_info_to_howto_rel m32r_info_to_howto_rel
3662 #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
3663 #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
3664 #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
3665 #define elf_backend_relocate_section m32r_elf_relocate_section
3666 #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
3667 #define elf_backend_check_relocs m32r_elf_check_relocs
3669 #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
3670 #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
3671 #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
3672 #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
3673 #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
3674 #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
3675 #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
3676 #define elf_backend_reloc_type_class m32r_elf_reloc_type_class
3678 #define elf_backend_can_gc_sections 1
3680 #define elf_backend_rela_normal 1
3682 #define elf_backend_can_refcount 1
3683 #define elf_backend_want_got_plt 1
3684 #define elf_backend_plt_readonly 1
3685 #define elf_backend_want_plt_sym 0
3686 #define elf_backend_got_header_size 12
3687 #define elf_backend_dtrel_excludes_plt 1
3689 #define elf_backend_may_use_rel_p 1
3690 #ifdef USE_M32R_OLD_RELOC
3691 #define elf_backend_default_use_rela_p 0
3692 #define elf_backend_may_use_rela_p 0
3694 #define elf_backend_default_use_rela_p 1
3695 #define elf_backend_may_use_rela_p 1
3698 #define elf_backend_object_p m32r_elf_object_p
3699 #define elf_backend_final_write_processing m32r_elf_final_write_processing
3700 #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
3701 #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
3702 #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
3703 #define elf_backend_special_sections m32r_elf_special_sections
3704 #define elf_backend_section_flags m32r_elf_section_flags
3706 #define elf_backend_linux_prpsinfo32_ugid16 TRUE
3708 #include "elf32-target.h"
3710 #undef ELF_MAXPAGESIZE
3711 #define ELF_MAXPAGESIZE 0x1000
3713 #undef TARGET_BIG_SYM
3714 #define TARGET_BIG_SYM m32r_elf32_linux_vec
3715 #undef TARGET_BIG_NAME
3716 #define TARGET_BIG_NAME "elf32-m32r-linux"
3717 #undef TARGET_LITTLE_SYM
3718 #define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
3719 #undef TARGET_LITTLE_NAME
3720 #define TARGET_LITTLE_NAME "elf32-m32rle-linux"
3722 #define elf32_bed elf32_m32r_lin_bed
3724 #include "elf32-target.h"