1 /* M32R-specific support for 32-bit ELF.
2 Copyright (C) 1996-2017 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 (_("%B: invalid M32R reloc number: %d"), abfd
, r_type
);
1289 cache_ptr
->howto
= &m32r_elf_howto_table
[r_type
];
1293 m32r_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
1295 Elf_Internal_Rela
*dst
)
1297 BFD_ASSERT ((ELF32_R_TYPE(dst
->r_info
) == (unsigned int) R_M32R_NONE
)
1298 || ((ELF32_R_TYPE(dst
->r_info
) > (unsigned int) R_M32R_GNU_VTENTRY
)
1299 && (ELF32_R_TYPE(dst
->r_info
) < (unsigned int) R_M32R_max
)));
1300 cache_ptr
->howto
= &m32r_elf_howto_table
[ELF32_R_TYPE(dst
->r_info
)];
1304 /* Given a BFD section, try to locate the corresponding ELF section
1308 _bfd_m32r_elf_section_from_bfd_section (bfd
*abfd ATTRIBUTE_UNUSED
,
1312 if (strcmp (bfd_get_section_name (abfd
, sec
), ".scommon") == 0)
1314 *retval
= SHN_M32R_SCOMMON
;
1320 /* M32R ELF uses two common sections. One is the usual one, and the other
1321 is for small objects. All the small objects are kept together, and then
1322 referenced via one register, which yields faster assembler code. It is
1323 up to the compiler to emit an instruction to load the register with
1324 _SDA_BASE. This is what we use for the small common section. This
1325 approach is copied from elf32-mips.c. */
1326 static asection m32r_elf_scom_section
;
1327 static asymbol m32r_elf_scom_symbol
;
1328 static asymbol
*m32r_elf_scom_symbol_ptr
;
1330 /* Handle the special M32R section numbers that a symbol may use. */
1333 _bfd_m32r_elf_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
, asymbol
*asym
)
1335 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;
1337 switch (elfsym
->internal_elf_sym
.st_shndx
)
1339 case SHN_M32R_SCOMMON
:
1340 if (m32r_elf_scom_section
.name
== NULL
)
1342 /* Initialize the small common section. */
1343 m32r_elf_scom_section
.name
= ".scommon";
1344 m32r_elf_scom_section
.flags
= SEC_IS_COMMON
;
1345 m32r_elf_scom_section
.output_section
= &m32r_elf_scom_section
;
1346 m32r_elf_scom_section
.symbol
= &m32r_elf_scom_symbol
;
1347 m32r_elf_scom_section
.symbol_ptr_ptr
= &m32r_elf_scom_symbol_ptr
;
1348 m32r_elf_scom_symbol
.name
= ".scommon";
1349 m32r_elf_scom_symbol
.flags
= BSF_SECTION_SYM
;
1350 m32r_elf_scom_symbol
.section
= &m32r_elf_scom_section
;
1351 m32r_elf_scom_symbol_ptr
= &m32r_elf_scom_symbol
;
1353 asym
->section
= &m32r_elf_scom_section
;
1354 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
1359 /* Hook called by the linker routine which adds symbols from an object
1360 file. We must handle the special M32R section numbers here.
1361 We also keep watching for whether we need to create the sdata special
1365 m32r_elf_add_symbol_hook (bfd
*abfd
,
1366 struct bfd_link_info
*info
,
1367 Elf_Internal_Sym
*sym
,
1369 flagword
*flagsp ATTRIBUTE_UNUSED
,
1373 if (! bfd_link_relocatable (info
)
1374 && (*namep
)[0] == '_' && (*namep
)[1] == 'S'
1375 && strcmp (*namep
, "_SDA_BASE_") == 0
1376 && is_elf_hash_table (info
->hash
))
1378 /* This is simpler than using _bfd_elf_create_linker_section
1379 (our needs are simpler than ppc's needs). Also
1380 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1381 section already exists a new one is created that follows it which
1382 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1383 struct elf_link_hash_entry
*h
;
1384 struct bfd_link_hash_entry
*bh
;
1385 asection
*s
= bfd_get_section_by_name (abfd
, ".sdata");
1387 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
1390 flagword flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
1391 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
1393 s
= bfd_make_section_anyway_with_flags (abfd
, ".sdata",
1397 if (! bfd_set_section_alignment (abfd
, s
, 2))
1401 bh
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_",
1402 FALSE
, FALSE
, FALSE
);
1404 if ((bh
== NULL
|| bh
->type
== bfd_link_hash_undefined
)
1405 && !(_bfd_generic_link_add_one_symbol (info
,
1413 get_elf_backend_data (abfd
)->collect
,
1416 h
= (struct elf_link_hash_entry
*) bh
;
1417 h
->type
= STT_OBJECT
;
1420 switch (sym
->st_shndx
)
1422 case SHN_M32R_SCOMMON
:
1423 *secp
= bfd_make_section_old_way (abfd
, ".scommon");
1424 (*secp
)->flags
|= SEC_IS_COMMON
;
1425 *valp
= sym
->st_size
;
1432 /* We have to figure out the SDA_BASE value, so that we can adjust the
1433 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1434 BFD. If we can't find it, we're stuck. We cache it in the ELF
1435 target data. We don't need to adjust the symbol value for an
1436 external symbol if we are producing relocatable output. */
1438 static bfd_reloc_status_type
1439 m32r_elf_final_sda_base (bfd
*output_bfd
,
1440 struct bfd_link_info
*info
,
1441 const char **error_message
,
1444 if (elf_gp (output_bfd
) == 0)
1446 struct bfd_link_hash_entry
*h
;
1448 h
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_", FALSE
, FALSE
, TRUE
);
1449 if (h
!= NULL
&& h
->type
== bfd_link_hash_defined
)
1450 elf_gp (output_bfd
) = (h
->u
.def
.value
1451 + h
->u
.def
.section
->output_section
->vma
1452 + h
->u
.def
.section
->output_offset
);
1455 /* Only get the error once. */
1456 *psb
= elf_gp (output_bfd
) = 4;
1458 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1459 return bfd_reloc_dangerous
;
1462 *psb
= elf_gp (output_bfd
);
1463 return bfd_reloc_ok
;
1466 /* Return size of a PLT entry. */
1467 #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1469 /* The m32r linker needs to keep track of the number of relocs that it
1470 decides to copy in check_relocs for each symbol. This is so that
1471 it can discard PC relative relocs if it doesn't need them when
1472 linking with -Bsymbolic. We store the information in a field
1473 extending the regular ELF linker hash table. */
1475 /* This structure keeps track of the number of PC relative relocs we
1476 have copied for a given symbol. */
1478 struct elf_m32r_pcrel_relocs_copied
1481 struct elf_m32r_pcrel_relocs_copied
*next
;
1482 /* A section in dynobj. */
1484 /* Number of relocs copied in this section. */
1485 bfd_size_type count
;
1488 /* The sh linker needs to keep track of the number of relocs that it
1489 decides to copy as dynamic relocs in check_relocs for each symbol.
1490 This is so that it can later discard them if they are found to be
1491 unnecessary. We store the information in a field extending the
1492 regular ELF linker hash table. */
1494 struct elf_m32r_dyn_relocs
1496 struct elf_m32r_dyn_relocs
*next
;
1498 /* The input section of the reloc. */
1501 /* Total number of relocs copied for the input section. */
1502 bfd_size_type count
;
1504 /* Number of pc-relative relocs copied for the input section. */
1505 bfd_size_type pc_count
;
1509 /* m32r ELF linker hash entry. */
1511 struct elf_m32r_link_hash_entry
1513 struct elf_link_hash_entry root
;
1515 /* Track dynamic relocs copied for this symbol. */
1516 struct elf_m32r_dyn_relocs
*dyn_relocs
;
1519 /* m32r ELF linker hash table. */
1521 struct elf_m32r_link_hash_table
1523 struct elf_link_hash_table root
;
1525 /* Short-cuts to get to dynamic linker sections. */
1529 /* Small local sym cache. */
1530 struct sym_cache sym_cache
;
1533 /* Traverse an m32r ELF linker hash table. */
1535 #define m32r_elf_link_hash_traverse(table, func, info) \
1536 (elf_link_hash_traverse \
1538 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
1541 /* Get the m32r ELF linker hash table from a link_info structure. */
1543 #define m32r_elf_hash_table(p) \
1544 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1545 == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
1547 /* Create an entry in an m32r ELF linker hash table. */
1549 static struct bfd_hash_entry
*
1550 m32r_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
1551 struct bfd_hash_table
*table
,
1554 struct elf_m32r_link_hash_entry
*ret
=
1555 (struct elf_m32r_link_hash_entry
*) entry
;
1557 /* Allocate the structure if it has not already been allocated by a
1560 ret
= bfd_hash_allocate (table
,
1561 sizeof (struct elf_m32r_link_hash_entry
));
1565 /* Call the allocation method of the superclass. */
1566 ret
= ((struct elf_m32r_link_hash_entry
*)
1567 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1571 struct elf_m32r_link_hash_entry
*eh
;
1573 eh
= (struct elf_m32r_link_hash_entry
*) ret
;
1574 eh
->dyn_relocs
= NULL
;
1577 return (struct bfd_hash_entry
*) ret
;
1580 /* Create an m32r ELF linker hash table. */
1582 static struct bfd_link_hash_table
*
1583 m32r_elf_link_hash_table_create (bfd
*abfd
)
1585 struct elf_m32r_link_hash_table
*ret
;
1586 bfd_size_type amt
= sizeof (struct elf_m32r_link_hash_table
);
1588 ret
= bfd_zmalloc (amt
);
1592 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1593 m32r_elf_link_hash_newfunc
,
1594 sizeof (struct elf_m32r_link_hash_entry
),
1601 return &ret
->root
.root
;
1604 /* Create dynamic sections when linking against a dynamic object. */
1607 m32r_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
1609 struct elf_m32r_link_hash_table
*htab
;
1610 flagword flags
, pltflags
;
1612 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1613 int ptralign
= 2; /* 32bit */
1615 htab
= m32r_elf_hash_table (info
);
1619 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1620 .rel[a].bss sections. */
1621 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
1622 | SEC_LINKER_CREATED
);
1625 pltflags
|= SEC_CODE
;
1626 if (bed
->plt_not_loaded
)
1627 pltflags
&= ~ (SEC_LOAD
| SEC_HAS_CONTENTS
);
1628 if (bed
->plt_readonly
)
1629 pltflags
|= SEC_READONLY
;
1631 s
= bfd_make_section_anyway_with_flags (abfd
, ".plt", pltflags
);
1632 htab
->root
.splt
= s
;
1634 || ! bfd_set_section_alignment (abfd
, s
, bed
->plt_alignment
))
1637 if (bed
->want_plt_sym
)
1639 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1641 struct bfd_link_hash_entry
*bh
= NULL
;
1642 struct elf_link_hash_entry
*h
;
1644 if (! (_bfd_generic_link_add_one_symbol
1645 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
1646 (bfd_vma
) 0, NULL
, FALSE
,
1647 get_elf_backend_data (abfd
)->collect
, &bh
)))
1649 h
= (struct elf_link_hash_entry
*) bh
;
1651 h
->type
= STT_OBJECT
;
1652 htab
->root
.hplt
= h
;
1654 if (bfd_link_pic (info
)
1655 && ! bfd_elf_link_record_dynamic_symbol (info
, h
))
1659 s
= bfd_make_section_anyway_with_flags (abfd
,
1660 bed
->default_use_rela_p
1661 ? ".rela.plt" : ".rel.plt",
1662 flags
| SEC_READONLY
);
1663 htab
->root
.srelplt
= s
;
1665 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
1668 if (htab
->root
.sgot
== NULL
1669 && !_bfd_elf_create_got_section (abfd
, info
))
1672 if (bed
->want_dynbss
)
1674 /* The .dynbss section is a place to put symbols which are defined
1675 by dynamic objects, are referenced by regular objects, and are
1676 not functions. We must allocate space for them in the process
1677 image and use a R_*_COPY reloc to tell the dynamic linker to
1678 initialize them at run time. The linker script puts the .dynbss
1679 section into the .bss section of the final image. */
1680 s
= bfd_make_section_anyway_with_flags (abfd
, ".dynbss",
1681 SEC_ALLOC
| SEC_LINKER_CREATED
);
1685 /* The .rel[a].bss section holds copy relocs. This section is not
1686 normally needed. We need to create it here, though, so that the
1687 linker will map it to an output section. We can't just create it
1688 only if we need it, because we will not know whether we need it
1689 until we have seen all the input files, and the first time the
1690 main linker code calls BFD after examining all the input files
1691 (size_dynamic_sections) the input sections have already been
1692 mapped to the output sections. If the section turns out not to
1693 be needed, we can discard it later. We will never need this
1694 section when generating a shared object, since they do not use
1696 if (! bfd_link_pic (info
))
1698 s
= bfd_make_section_anyway_with_flags (abfd
,
1699 (bed
->default_use_rela_p
1700 ? ".rela.bss" : ".rel.bss"),
1701 flags
| SEC_READONLY
);
1704 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
1712 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1715 m32r_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
1716 struct elf_link_hash_entry
*dir
,
1717 struct elf_link_hash_entry
*ind
)
1719 struct elf_m32r_link_hash_entry
* edir
;
1720 struct elf_m32r_link_hash_entry
* eind
;
1722 edir
= (struct elf_m32r_link_hash_entry
*) dir
;
1723 eind
= (struct elf_m32r_link_hash_entry
*) ind
;
1725 if (eind
->dyn_relocs
!= NULL
)
1727 if (edir
->dyn_relocs
!= NULL
)
1729 struct elf_m32r_dyn_relocs
**pp
;
1730 struct elf_m32r_dyn_relocs
*p
;
1732 /* Add reloc counts against the indirect sym to the direct sym
1733 list. Merge any entries against the same section. */
1734 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
;)
1736 struct elf_m32r_dyn_relocs
*q
;
1738 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
1739 if (q
->sec
== p
->sec
)
1741 q
->pc_count
+= p
->pc_count
;
1742 q
->count
+= p
->count
;
1749 *pp
= edir
->dyn_relocs
;
1752 edir
->dyn_relocs
= eind
->dyn_relocs
;
1753 eind
->dyn_relocs
= NULL
;
1756 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
1760 /* Find dynamic relocs for H that apply to read-only sections. */
1763 readonly_dynrelocs (struct elf_link_hash_entry
*h
)
1765 struct elf_m32r_dyn_relocs
*p
;
1766 struct elf_m32r_link_hash_entry
*eh
= (struct elf_m32r_link_hash_entry
*) h
;
1768 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1770 asection
*s
= p
->sec
->output_section
;
1772 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
1778 /* Adjust a symbol defined by a dynamic object and referenced by a
1779 regular object. The current definition is in some section of the
1780 dynamic object, but we're not including those sections. We have to
1781 change the definition to something the rest of the link can
1785 m32r_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1786 struct elf_link_hash_entry
*h
)
1788 struct elf_m32r_link_hash_table
*htab
;
1789 struct elf_m32r_link_hash_entry
*eh
;
1790 struct elf_m32r_dyn_relocs
*p
;
1795 printf ("m32r_elf_adjust_dynamic_symbol()\n");
1798 dynobj
= elf_hash_table (info
)->dynobj
;
1800 /* Make sure we know what is going on here. */
1801 BFD_ASSERT (dynobj
!= NULL
1806 && !h
->def_regular
)));
1808 /* If this is a function, put it in the procedure linkage table. We
1809 will fill in the contents of the procedure linkage table later,
1810 when we know the address of the .got section. */
1811 if (h
->type
== STT_FUNC
1814 if (! bfd_link_pic (info
)
1817 && h
->root
.type
!= bfd_link_hash_undefweak
1818 && h
->root
.type
!= bfd_link_hash_undefined
)
1820 /* This case can occur if we saw a PLT reloc in an input
1821 file, but the symbol was never referred to by a dynamic
1822 object. In such a case, we don't actually need to build
1823 a procedure linkage table, and we can just do a PCREL
1825 h
->plt
.offset
= (bfd_vma
) -1;
1832 h
->plt
.offset
= (bfd_vma
) -1;
1834 /* If this is a weak symbol, and there is a real definition, the
1835 processor independent code will have arranged for us to see the
1836 real definition first, and we can just use the same value. */
1837 if (h
->is_weakalias
)
1839 struct elf_link_hash_entry
*def
= weakdef (h
);
1840 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
1841 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
1842 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
1846 /* This is a reference to a symbol defined by a dynamic object which
1847 is not a function. */
1849 /* If we are creating a shared library, we must presume that the
1850 only references to the symbol are via the global offset table.
1851 For such cases we need not do anything here; the relocations will
1852 be handled correctly by relocate_section. */
1853 if (bfd_link_pic (info
))
1856 /* If there are no references to this symbol that do not use the
1857 GOT, we don't need to generate a copy reloc. */
1858 if (!h
->non_got_ref
)
1861 /* If -z nocopyreloc was given, we won't generate them either. */
1862 if (info
->nocopyreloc
)
1868 eh
= (struct elf_m32r_link_hash_entry
*) h
;
1869 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1871 s
= p
->sec
->output_section
;
1872 if (s
!= NULL
&& (s
->flags
& (SEC_READONLY
| SEC_HAS_CONTENTS
)) != 0)
1876 /* If we didn't find any dynamic relocs in sections which needs the
1877 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1885 /* We must allocate the symbol in our .dynbss section, which will
1886 become part of the .bss section of the executable. There will be
1887 an entry for this symbol in the .dynsym section. The dynamic
1888 object will contain position independent code, so all references
1889 from the dynamic object to this symbol will go through the global
1890 offset table. The dynamic linker will use the .dynsym entry to
1891 determine the address it must put in the global offset table, so
1892 both the dynamic object and the regular object will refer to the
1893 same memory location for the variable. */
1895 htab
= m32r_elf_hash_table (info
);
1900 BFD_ASSERT (s
!= NULL
);
1902 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1903 to copy the initial value out of the dynamic object and into the
1904 runtime process image. We need to remember the offset into the
1905 .rela.bss section we are going to use. */
1906 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
1910 srel
= htab
->srelbss
;
1911 BFD_ASSERT (srel
!= NULL
);
1912 srel
->size
+= sizeof (Elf32_External_Rela
);
1916 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
1919 /* Allocate space in .plt, .got and associated reloc sections for
1923 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void * inf
)
1925 struct bfd_link_info
*info
;
1926 struct elf_m32r_link_hash_table
*htab
;
1927 struct elf_m32r_link_hash_entry
*eh
;
1928 struct elf_m32r_dyn_relocs
*p
;
1930 if (h
->root
.type
== bfd_link_hash_indirect
)
1933 info
= (struct bfd_link_info
*) inf
;
1934 htab
= m32r_elf_hash_table (info
);
1938 eh
= (struct elf_m32r_link_hash_entry
*) h
;
1940 if (htab
->root
.dynamic_sections_created
1941 && h
->plt
.refcount
> 0)
1943 /* Make sure this symbol is output as a dynamic symbol.
1944 Undefined weak syms won't yet be marked as dynamic. */
1945 if (h
->dynindx
== -1
1946 && !h
->forced_local
)
1948 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
1952 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), h
))
1954 asection
*s
= htab
->root
.splt
;
1956 /* If this is the first .plt entry, make room for the special
1959 s
->size
+= PLT_ENTRY_SIZE
;
1961 h
->plt
.offset
= s
->size
;
1963 /* If this symbol is not defined in a regular file, and we are
1964 not generating a shared library, then set the symbol to this
1965 location in the .plt. This is required to make function
1966 pointers compare as equal between the normal executable and
1967 the shared library. */
1968 if (! bfd_link_pic (info
)
1971 h
->root
.u
.def
.section
= s
;
1972 h
->root
.u
.def
.value
= h
->plt
.offset
;
1975 /* Make room for this entry. */
1976 s
->size
+= PLT_ENTRY_SIZE
;
1978 /* We also need to make an entry in the .got.plt section, which
1979 will be placed in the .got section by the linker script. */
1980 htab
->root
.sgotplt
->size
+= 4;
1982 /* We also need to make an entry in the .rel.plt section. */
1983 htab
->root
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
1987 h
->plt
.offset
= (bfd_vma
) -1;
1993 h
->plt
.offset
= (bfd_vma
) -1;
1997 if (h
->got
.refcount
> 0)
2002 /* Make sure this symbol is output as a dynamic symbol.
2003 Undefined weak syms won't yet be marked as dynamic. */
2004 if (h
->dynindx
== -1
2005 && !h
->forced_local
)
2007 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2011 s
= htab
->root
.sgot
;
2013 h
->got
.offset
= s
->size
;
2015 dyn
= htab
->root
.dynamic_sections_created
;
2016 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
))
2017 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2020 h
->got
.offset
= (bfd_vma
) -1;
2022 if (eh
->dyn_relocs
== NULL
)
2025 /* In the shared -Bsymbolic case, discard space allocated for
2026 dynamic pc-relative relocs against symbols which turn out to be
2027 defined in regular objects. For the normal shared case, discard
2028 space for pc-relative relocs that have become local due to symbol
2029 visibility changes. */
2031 if (bfd_link_pic (info
))
2037 struct elf_m32r_dyn_relocs
**pp
;
2039 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
;)
2041 p
->count
-= p
->pc_count
;
2050 /* Also discard relocs on undefined weak syms with non-default
2052 if (eh
->dyn_relocs
!= NULL
2053 && h
->root
.type
== bfd_link_hash_undefweak
)
2055 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
2056 eh
->dyn_relocs
= NULL
;
2058 /* Make sure undefined weak symbols are output as a dynamic
2060 else if (h
->dynindx
== -1
2061 && !h
->forced_local
)
2063 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2070 /* For the non-shared case, discard space for relocs against
2071 symbols which turn out to need copy relocs or are not
2077 || (htab
->root
.dynamic_sections_created
2078 && (h
->root
.type
== bfd_link_hash_undefweak
2079 || h
->root
.type
== bfd_link_hash_undefined
))))
2081 /* Make sure this symbol is output as a dynamic symbol.
2082 Undefined weak syms won't yet be marked as dynamic. */
2083 if (h
->dynindx
== -1
2084 && !h
->forced_local
)
2086 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2090 /* If that succeeded, we know we'll be keeping all the
2092 if (h
->dynindx
!= -1)
2096 eh
->dyn_relocs
= NULL
;
2101 /* Finally, allocate space. */
2102 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2104 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
2105 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
2111 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
2112 read-only sections. */
2115 maybe_set_textrel (struct elf_link_hash_entry
*h
, void *info_p
)
2119 if (h
->root
.type
== bfd_link_hash_indirect
)
2122 sec
= readonly_dynrelocs (h
);
2125 struct bfd_link_info
*info
= (struct bfd_link_info
*) info_p
;
2127 info
->flags
|= DF_TEXTREL
;
2128 info
->callbacks
->minfo
2129 (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"),
2130 sec
->owner
, h
->root
.root
.string
, sec
);
2132 /* Not an error, just cut short the traversal. */
2138 /* Set the sizes of the dynamic sections. */
2141 m32r_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2142 struct bfd_link_info
*info
)
2144 struct elf_m32r_link_hash_table
*htab
;
2151 printf ("m32r_elf_size_dynamic_sections()\n");
2154 htab
= m32r_elf_hash_table (info
);
2158 dynobj
= htab
->root
.dynobj
;
2159 BFD_ASSERT (dynobj
!= NULL
);
2161 if (htab
->root
.dynamic_sections_created
)
2163 /* Set the contents of the .interp section to the interpreter. */
2164 if (bfd_link_executable (info
) && !info
->nointerp
)
2166 s
= bfd_get_linker_section (dynobj
, ".interp");
2167 BFD_ASSERT (s
!= NULL
);
2168 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2169 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2173 /* Set up .got offsets for local syms, and space for local dynamic
2175 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2177 bfd_signed_vma
*local_got
;
2178 bfd_signed_vma
*end_local_got
;
2179 bfd_size_type locsymcount
;
2180 Elf_Internal_Shdr
*symtab_hdr
;
2183 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2186 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2188 struct elf_m32r_dyn_relocs
*p
;
2190 for (p
= ((struct elf_m32r_dyn_relocs
*)
2191 elf_section_data (s
)->local_dynrel
);
2195 if (! bfd_is_abs_section (p
->sec
)
2196 && bfd_is_abs_section (p
->sec
->output_section
))
2198 /* Input section has been discarded, either because
2199 it is a copy of a linkonce section or due to
2200 linker script /DISCARD/, so we'll be discarding
2203 else if (p
->count
!= 0)
2205 srel
= elf_section_data (p
->sec
)->sreloc
;
2206 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
2207 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2208 info
->flags
|= DF_TEXTREL
;
2213 local_got
= elf_local_got_refcounts (ibfd
);
2217 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2218 locsymcount
= symtab_hdr
->sh_info
;
2219 end_local_got
= local_got
+ locsymcount
;
2220 s
= htab
->root
.sgot
;
2221 srel
= htab
->root
.srelgot
;
2222 for (; local_got
< end_local_got
; ++local_got
)
2226 *local_got
= s
->size
;
2228 if (bfd_link_pic (info
))
2229 srel
->size
+= sizeof (Elf32_External_Rela
);
2232 *local_got
= (bfd_vma
) -1;
2236 /* Allocate global sym .plt and .got entries, and space for global
2237 sym dynamic relocs. */
2238 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, info
);
2240 /* We now have determined the sizes of the various dynamic sections.
2241 Allocate memory for them. */
2243 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
2245 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
2248 if (s
== htab
->root
.splt
2249 || s
== htab
->root
.sgot
2250 || s
== htab
->root
.sgotplt
2251 || s
== htab
->sdynbss
)
2253 /* Strip this section if we don't need it; see the
2256 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, s
), ".rela"))
2258 if (s
->size
!= 0 && s
!= htab
->root
.srelplt
)
2261 /* We use the reloc_count field as a counter if we need
2262 to copy relocs into the output file. */
2266 /* It's not one of our sections, so don't allocate space. */
2271 /* If we don't need this section, strip it from the
2272 output file. This is mostly to handle .rela.bss and
2273 .rela.plt. We must create both sections in
2274 create_dynamic_sections, because they must be created
2275 before the linker maps input sections to output
2276 sections. The linker does that before
2277 adjust_dynamic_symbol is called, and it is that
2278 function which decides whether anything needs to go
2279 into these sections. */
2280 s
->flags
|= SEC_EXCLUDE
;
2284 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
2287 /* Allocate memory for the section contents. We use bfd_zalloc
2288 here in case unused entries are not reclaimed before the
2289 section's contents are written out. This should not happen,
2290 but this way if it does, we get a R_M32R_NONE reloc instead
2292 s
->contents
= bfd_zalloc (dynobj
, s
->size
);
2293 if (s
->contents
== NULL
)
2297 if (htab
->root
.dynamic_sections_created
)
2299 /* Add some entries to the .dynamic section. We fill in the
2300 values later, in m32r_elf_finish_dynamic_sections, but we
2301 must add the entries now so that we get the correct size for
2302 the .dynamic section. The DT_DEBUG entry is filled in by the
2303 dynamic linker and used by the debugger. */
2304 #define add_dynamic_entry(TAG, VAL) \
2305 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2307 if (bfd_link_executable (info
))
2309 if (! add_dynamic_entry (DT_DEBUG
, 0))
2313 if (htab
->root
.splt
->size
!= 0)
2315 if (! add_dynamic_entry (DT_PLTGOT
, 0)
2316 || ! add_dynamic_entry (DT_PLTRELSZ
, 0)
2317 || ! add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2318 || ! add_dynamic_entry (DT_JMPREL
, 0))
2324 if (! add_dynamic_entry (DT_RELA
, 0)
2325 || ! add_dynamic_entry (DT_RELASZ
, 0)
2326 || ! add_dynamic_entry (DT_RELAENT
,
2327 sizeof (Elf32_External_Rela
)))
2330 /* If any dynamic relocs apply to a read-only section,
2331 then we need a DT_TEXTREL entry. */
2332 if ((info
->flags
& DF_TEXTREL
) == 0)
2333 elf_link_hash_traverse (&htab
->root
, maybe_set_textrel
, info
);
2335 if ((info
->flags
& DF_TEXTREL
) != 0)
2337 if (! add_dynamic_entry (DT_TEXTREL
, 0))
2342 #undef add_dynamic_entry
2347 /* Relocate an M32R/D ELF section.
2348 There is some attempt to make this function usable for many architectures,
2349 both for RELA and REL type relocs, if only to serve as a learning tool.
2351 The RELOCATE_SECTION function is called by the new ELF backend linker
2352 to handle the relocations for a section.
2354 The relocs are always passed as Rela structures; if the section
2355 actually uses Rel structures, the r_addend field will always be
2358 This function is responsible for adjust the section contents as
2359 necessary, and (if using Rela relocs and generating a
2360 relocatable output file) adjusting the reloc addend as
2363 This function does not have to worry about setting the reloc
2364 address or the reloc symbol index.
2366 LOCAL_SYMS is a pointer to the swapped in local symbols.
2368 LOCAL_SECTIONS is an array giving the section in the input file
2369 corresponding to the st_shndx field of each local symbol.
2371 The global hash table entry for the global symbols can be found
2372 via elf_sym_hashes (input_bfd).
2374 When generating relocatable output, this function must handle
2375 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2376 going to be the section symbol corresponding to the output
2377 section, which means that the addend must be adjusted
2381 m32r_elf_relocate_section (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2382 struct bfd_link_info
*info
,
2384 asection
*input_section
,
2386 Elf_Internal_Rela
*relocs
,
2387 Elf_Internal_Sym
*local_syms
,
2388 asection
**local_sections
)
2390 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2391 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
2392 Elf_Internal_Rela
*rel
, *relend
;
2393 /* Assume success. */
2394 bfd_boolean ret
= TRUE
;
2395 struct elf_m32r_link_hash_table
*htab
= m32r_elf_hash_table (info
);
2396 bfd_vma
*local_got_offsets
;
2397 asection
*sgot
, *splt
, *sreloc
;
2398 bfd_vma high_address
= bfd_get_section_limit (input_bfd
, input_section
);
2403 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2405 sgot
= htab
->root
.sgot
;
2406 splt
= htab
->root
.splt
;
2410 relend
= relocs
+ input_section
->reloc_count
;
2411 for (; rel
< relend
; rel
++)
2414 reloc_howto_type
*howto
;
2415 unsigned long r_symndx
;
2416 struct elf_link_hash_entry
*h
;
2417 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2418 ensure it's zero (we use REL relocs, not RELA). Therefore this
2419 should be assigning zero to `addend', but for clarity we use
2421 bfd_vma addend
= rel
->r_addend
;
2422 bfd_vma offset
= rel
->r_offset
;
2424 Elf_Internal_Sym
*sym
;
2426 const char *sym_name
;
2427 bfd_reloc_status_type r
;
2428 const char *errmsg
= NULL
;
2429 bfd_boolean use_rel
= FALSE
;
2432 r_type
= ELF32_R_TYPE (rel
->r_info
);
2433 if (r_type
< 0 || r_type
>= (int) R_M32R_max
)
2435 /* xgettext:c-format */
2436 _bfd_error_handler (_("%B: unknown relocation type %d"),
2437 input_bfd
, (int) r_type
);
2438 bfd_set_error (bfd_error_bad_value
);
2443 if ( r_type
== R_M32R_GNU_VTENTRY
2444 || r_type
== R_M32R_GNU_VTINHERIT
2445 || r_type
== R_M32R_NONE
2446 || r_type
== R_M32R_RELA_GNU_VTENTRY
2447 || r_type
== R_M32R_RELA_GNU_VTINHERIT
)
2450 if (r_type
<= R_M32R_GNU_VTENTRY
)
2453 howto
= m32r_elf_howto_table
+ r_type
;
2454 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2460 if (r_symndx
< symtab_hdr
->sh_info
)
2463 sym
= local_syms
+ r_symndx
;
2464 sec
= local_sections
[r_symndx
];
2465 sym_name
= "<local symbol>";
2469 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2470 addend
= rel
->r_addend
;
2474 relocation
= (sec
->output_section
->vma
2475 + sec
->output_offset
2481 /* External symbol. */
2484 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2486 if (info
->wrap_hash
!= NULL
2487 && (input_section
->flags
& SEC_DEBUGGING
) != 0)
2488 h
= ((struct elf_link_hash_entry
*)
2489 unwrap_hash_lookup (info
, input_bfd
, &h
->root
));
2491 while (h
->root
.type
== bfd_link_hash_indirect
2492 || h
->root
.type
== bfd_link_hash_warning
)
2493 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2494 sym_name
= h
->root
.root
.string
;
2496 if (h
->root
.type
== bfd_link_hash_defined
2497 || h
->root
.type
== bfd_link_hash_defweak
)
2500 sec
= h
->root
.u
.def
.section
;
2502 dyn
= htab
->root
.dynamic_sections_created
;
2503 sec
= h
->root
.u
.def
.section
;
2504 if (r_type
== R_M32R_GOTPC24
2505 || (r_type
== R_M32R_GOTPC_HI_ULO
2506 || r_type
== R_M32R_GOTPC_HI_SLO
2507 || r_type
== R_M32R_GOTPC_LO
)
2508 || (r_type
== R_M32R_26_PLTREL
2509 && h
->plt
.offset
!= (bfd_vma
) -1)
2510 || ((r_type
== R_M32R_GOT24
2511 || r_type
== R_M32R_GOT16_HI_ULO
2512 || r_type
== R_M32R_GOT16_HI_SLO
2513 || r_type
== R_M32R_GOT16_LO
)
2514 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
2515 bfd_link_pic (info
),
2517 && (! bfd_link_pic (info
)
2518 || (! info
->symbolic
&& h
->dynindx
!= -1)
2519 || !h
->def_regular
))
2520 || (bfd_link_pic (info
)
2521 && ((! info
->symbolic
&& h
->dynindx
!= -1)
2523 && (((r_type
== R_M32R_16_RELA
2524 || r_type
== R_M32R_32_RELA
2525 || r_type
== R_M32R_24_RELA
2526 || r_type
== R_M32R_HI16_ULO_RELA
2527 || r_type
== R_M32R_HI16_SLO_RELA
2528 || r_type
== R_M32R_LO16_RELA
)
2529 && !h
->forced_local
)
2530 || r_type
== R_M32R_REL32
2531 || r_type
== R_M32R_10_PCREL_RELA
2532 || r_type
== R_M32R_18_PCREL_RELA
2533 || r_type
== R_M32R_26_PCREL_RELA
)
2534 && ((input_section
->flags
& SEC_ALLOC
) != 0
2535 /* DWARF will emit R_M32R_16(24,32) relocations
2536 in its sections against symbols defined
2537 externally in shared libraries. We can't do
2538 anything with them here. */
2539 || ((input_section
->flags
& SEC_DEBUGGING
) != 0
2540 && h
->def_dynamic
))))
2542 /* In these cases, we don't need the relocation
2543 value. We check specially because in some
2544 obscure cases sec->output_section will be NULL. */
2546 else if (sec
->output_section
!= NULL
)
2547 relocation
= (h
->root
.u
.def
.value
2548 + sec
->output_section
->vma
2549 + sec
->output_offset
);
2550 else if (!bfd_link_relocatable (info
)
2551 && (_bfd_elf_section_offset (output_bfd
, info
,
2557 /* xgettext:c-format */
2558 (_("%B(%A+%#Lx): unresolvable %s relocation "
2559 "against symbol `%s'"),
2564 h
->root
.root
.string
);
2567 else if (h
->root
.type
== bfd_link_hash_undefweak
)
2569 else if (info
->unresolved_syms_in_objects
== RM_IGNORE
2570 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
2572 else if (!bfd_link_relocatable (info
))
2573 (*info
->callbacks
->undefined_symbol
)
2574 (info
, h
->root
.root
.string
, input_bfd
,
2575 input_section
, offset
,
2576 (info
->unresolved_syms_in_objects
== RM_GENERATE_ERROR
2577 || ELF_ST_VISIBILITY (h
->other
)));
2580 if (sec
!= NULL
&& discarded_section (sec
))
2581 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
2582 rel
, 1, relend
, howto
, 0, contents
);
2584 if (bfd_link_relocatable (info
) && !use_rel
)
2586 /* This is a relocatable link. We don't have to change
2587 anything, unless the reloc is against a section symbol,
2588 in which case we have to adjust according to where the
2589 section symbol winds up in the output section. */
2590 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
2591 rel
->r_addend
+= sec
->output_offset
;
2595 if (bfd_link_relocatable (info
) && use_rel
)
2597 /* This is a relocatable link. We don't have to change
2598 anything, unless the reloc is against a section symbol,
2599 in which case we have to adjust according to where the
2600 section symbol winds up in the output section. */
2601 if (sym
== NULL
|| ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2604 addend
+= sec
->output_offset
;
2606 /* If partial_inplace, we need to store any additional addend
2607 back in the section. */
2608 if (! howto
->partial_inplace
)
2610 /* ??? Here is a nice place to call a special_function
2612 if (r_type
!= R_M32R_HI16_SLO
&& r_type
!= R_M32R_HI16_ULO
)
2613 r
= _bfd_relocate_contents (howto
, input_bfd
,
2614 addend
, contents
+ offset
);
2617 Elf_Internal_Rela
*lorel
;
2619 /* We allow an arbitrary number of HI16 relocs before the
2620 LO16 reloc. This permits gcc to emit the HI and LO relocs
2622 for (lorel
= rel
+ 1;
2624 && (ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_SLO
2625 || ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_ULO
));
2629 && ELF32_R_TYPE (lorel
->r_info
) == R_M32R_LO16
)
2631 m32r_elf_relocate_hi16 (input_bfd
, r_type
, rel
, lorel
,
2636 r
= _bfd_relocate_contents (howto
, input_bfd
,
2637 addend
, contents
+ offset
);
2642 /* Sanity check the address. */
2643 if (offset
> high_address
)
2645 r
= bfd_reloc_outofrange
;
2649 switch ((int) r_type
)
2652 /* Relocation is relative to the start of the global offset
2653 table (for ld24 rx, #uimm24). eg access at label+addend
2655 ld24 rx. #label@GOTOFF + addend
2658 BFD_ASSERT (sgot
!= NULL
);
2660 relocation
= -(relocation
- sgot
->output_section
->vma
);
2661 rel
->r_addend
= -rel
->r_addend
;
2664 case R_M32R_GOTOFF_HI_ULO
:
2665 case R_M32R_GOTOFF_HI_SLO
:
2666 case R_M32R_GOTOFF_LO
:
2667 BFD_ASSERT (sgot
!= NULL
);
2669 relocation
-= sgot
->output_section
->vma
;
2671 if ((r_type
== R_M32R_GOTOFF_HI_SLO
)
2672 && ((relocation
+ rel
->r_addend
) & 0x8000))
2673 rel
->r_addend
+= 0x10000;
2676 case R_M32R_GOTPC24
:
2677 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2678 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2680 relocation
= sgot
->output_section
->vma
;
2683 case R_M32R_GOTPC_HI_ULO
:
2684 case R_M32R_GOTPC_HI_SLO
:
2685 case R_M32R_GOTPC_LO
:
2687 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2689 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2690 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2693 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2694 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2696 relocation
= sgot
->output_section
->vma
;
2697 relocation
-= (input_section
->output_section
->vma
2698 + input_section
->output_offset
2700 if ((r_type
== R_M32R_GOTPC_HI_SLO
)
2701 && ((relocation
+ rel
->r_addend
) & 0x8000))
2702 rel
->r_addend
+= 0x10000;
2706 case R_M32R_GOT16_HI_ULO
:
2707 case R_M32R_GOT16_HI_SLO
:
2708 case R_M32R_GOT16_LO
:
2711 /* Relocation is to the entry for this symbol in the global
2713 BFD_ASSERT (sgot
!= NULL
);
2720 off
= h
->got
.offset
;
2721 BFD_ASSERT (off
!= (bfd_vma
) -1);
2723 dyn
= htab
->root
.dynamic_sections_created
;
2724 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
2725 bfd_link_pic (info
),
2727 || (bfd_link_pic (info
)
2733 /* This is actually a static link, or it is a
2734 -Bsymbolic link and the symbol is defined
2735 locally, or the symbol was forced to be local
2736 because of a version file. We must initialize
2737 this entry in the global offset table. Since the
2738 offset must always be a multiple of 4, we use the
2739 least significant bit to record whether we have
2740 initialized it already.
2742 When doing a dynamic link, we create a .rela.got
2743 relocation entry to initialize the value. This
2744 is done in the finish_dynamic_symbol routine. */
2749 bfd_put_32 (output_bfd
, relocation
,
2750 sgot
->contents
+ off
);
2755 relocation
= sgot
->output_offset
+ off
;
2762 BFD_ASSERT (local_got_offsets
!= NULL
2763 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
2765 off
= local_got_offsets
[r_symndx
];
2767 /* The offset must always be a multiple of 4. We use
2768 the least significant bit to record whether we have
2769 already processed this entry. */
2774 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
2776 if (bfd_link_pic (info
))
2779 Elf_Internal_Rela outrel
;
2781 /* We need to generate a R_M32R_RELATIVE reloc
2782 for the dynamic linker. */
2783 srelgot
= htab
->root
.srelgot
;
2784 BFD_ASSERT (srelgot
!= NULL
);
2786 outrel
.r_offset
= (sgot
->output_section
->vma
2787 + sgot
->output_offset
2789 outrel
.r_info
= ELF32_R_INFO (0, R_M32R_RELATIVE
);
2790 outrel
.r_addend
= relocation
;
2791 loc
= srelgot
->contents
;
2792 loc
+= srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
2793 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
2794 ++srelgot
->reloc_count
;
2797 local_got_offsets
[r_symndx
] |= 1;
2800 relocation
= sgot
->output_offset
+ off
;
2802 if ((r_type
== R_M32R_GOT16_HI_SLO
)
2803 && ((relocation
+ rel
->r_addend
) & 0x8000))
2804 rel
->r_addend
+= 0x10000;
2808 case R_M32R_26_PLTREL
:
2809 /* Relocation is to the entry for this symbol in the
2810 procedure linkage table. */
2812 /* The native assembler will generate a 26_PLTREL reloc
2813 for a local symbol if you assemble a call from one
2814 section to another when using -K pic. */
2818 if (h
->forced_local
)
2821 if (h
->plt
.offset
== (bfd_vma
) -1)
2822 /* We didn't make a PLT entry for this symbol. This
2823 happens when statically linking PIC code, or when
2824 using -Bsymbolic. */
2827 relocation
= (splt
->output_section
->vma
2828 + splt
->output_offset
2832 case R_M32R_HI16_SLO_RELA
:
2833 if ((relocation
+ rel
->r_addend
) & 0x8000)
2834 rel
->r_addend
+= 0x10000;
2837 case R_M32R_16_RELA
:
2838 case R_M32R_24_RELA
:
2839 case R_M32R_32_RELA
:
2841 case R_M32R_10_PCREL_RELA
:
2842 case R_M32R_18_PCREL_RELA
:
2843 case R_M32R_26_PCREL_RELA
:
2844 case R_M32R_HI16_ULO_RELA
:
2845 case R_M32R_LO16_RELA
:
2846 if (bfd_link_pic (info
)
2847 && r_symndx
!= STN_UNDEF
2848 && (input_section
->flags
& SEC_ALLOC
) != 0
2849 && (( r_type
!= R_M32R_10_PCREL_RELA
2850 && r_type
!= R_M32R_18_PCREL_RELA
2851 && r_type
!= R_M32R_26_PCREL_RELA
2852 && r_type
!= R_M32R_REL32
)
2855 && (! info
->symbolic
2856 || !h
->def_regular
))))
2858 Elf_Internal_Rela outrel
;
2859 bfd_boolean skip
, relocate
;
2862 /* When generating a shared object, these relocations
2863 are copied into the output file to be resolved at run
2867 sreloc
= _bfd_elf_get_dynamic_reloc_section
2868 (input_bfd
, input_section
, /*rela?*/ TRUE
);
2876 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
2880 if (outrel
.r_offset
== (bfd_vma
) -1)
2882 else if (outrel
.r_offset
== (bfd_vma
) -2)
2883 skip
= relocate
= TRUE
;
2884 outrel
.r_offset
+= (input_section
->output_section
->vma
2885 + input_section
->output_offset
);
2888 memset (&outrel
, 0, sizeof outrel
);
2889 else if ( r_type
== R_M32R_10_PCREL_RELA
2890 || r_type
== R_M32R_18_PCREL_RELA
2891 || r_type
== R_M32R_26_PCREL_RELA
2892 || r_type
== R_M32R_REL32
)
2894 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
2895 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
2896 outrel
.r_addend
= rel
->r_addend
;
2900 /* h->dynindx may be -1 if this symbol was marked to
2903 || ((info
->symbolic
|| h
->dynindx
== -1)
2907 outrel
.r_info
= ELF32_R_INFO (0, R_M32R_RELATIVE
);
2908 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2912 BFD_ASSERT (h
->dynindx
!= -1);
2913 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
2914 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2918 loc
= sreloc
->contents
;
2919 loc
+= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
2920 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
2921 ++sreloc
->reloc_count
;
2923 /* If this reloc is against an external symbol, we do
2924 not want to fiddle with the addend. Otherwise, we
2925 need to include the symbol value so that it becomes
2926 an addend for the dynamic reloc. */
2931 else if (r_type
!= R_M32R_10_PCREL_RELA
)
2935 case (int) R_M32R_10_PCREL
:
2936 r
= m32r_elf_do_10_pcrel_reloc (input_bfd
, howto
, input_section
,
2938 sec
, relocation
, addend
);
2941 case (int) R_M32R_HI16_SLO
:
2942 case (int) R_M32R_HI16_ULO
:
2944 Elf_Internal_Rela
*lorel
;
2946 /* We allow an arbitrary number of HI16 relocs before the
2947 LO16 reloc. This permits gcc to emit the HI and LO relocs
2949 for (lorel
= rel
+ 1;
2951 && (ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_SLO
2952 || ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_ULO
));
2956 && ELF32_R_TYPE (lorel
->r_info
) == R_M32R_LO16
)
2958 m32r_elf_relocate_hi16 (input_bfd
, r_type
, rel
, lorel
,
2959 contents
, relocation
+ addend
);
2963 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
2965 relocation
, addend
);
2970 case (int) R_M32R_SDA16_RELA
:
2971 case (int) R_M32R_SDA16
:
2975 BFD_ASSERT (sec
!= NULL
);
2976 name
= bfd_get_section_name (sec
->owner
, sec
);
2978 if ( strcmp (name
, ".sdata") == 0
2979 || strcmp (name
, ".sbss") == 0
2980 || strcmp (name
, ".scommon") == 0)
2983 bfd
*out_bfd
= sec
->output_section
->owner
;
2985 r
= m32r_elf_final_sda_base (out_bfd
, info
,
2988 if (r
!= bfd_reloc_ok
)
2994 /* At this point `relocation' contains the object's
2996 relocation
-= sda_base
;
2997 /* Now it contains the offset from _SDA_BASE_. */
3002 /* xgettext:c-format */
3003 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3006 m32r_elf_howto_table
[(int) r_type
].name
,
3008 /*bfd_set_error (bfd_error_bad_value); ??? why? */
3015 default : /* OLD_M32R_RELOC */
3017 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3019 relocation
, addend
);
3023 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3024 contents
, rel
->r_offset
,
3025 relocation
, rel
->r_addend
);
3031 if (r
!= bfd_reloc_ok
)
3033 /* FIXME: This should be generic enough to go in a utility. */
3037 name
= h
->root
.root
.string
;
3040 name
= (bfd_elf_string_from_elf_section
3041 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
3042 if (name
== NULL
|| *name
== '\0')
3043 name
= bfd_section_name (input_bfd
, sec
);
3051 case bfd_reloc_overflow
:
3052 (*info
->callbacks
->reloc_overflow
)
3053 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
3054 (bfd_vma
) 0, input_bfd
, input_section
, offset
);
3057 case bfd_reloc_undefined
:
3058 (*info
->callbacks
->undefined_symbol
)
3059 (info
, name
, input_bfd
, input_section
, offset
, TRUE
);
3062 case bfd_reloc_outofrange
:
3063 errmsg
= _("internal error: out of range error");
3066 case bfd_reloc_notsupported
:
3067 errmsg
= _("internal error: unsupported relocation error");
3070 case bfd_reloc_dangerous
:
3071 errmsg
= _("internal error: dangerous error");
3075 errmsg
= _("internal error: unknown error");
3079 (*info
->callbacks
->warning
) (info
, errmsg
, name
, input_bfd
,
3080 input_section
, offset
);
3089 /* Finish up dynamic symbol handling. We set the contents of various
3090 dynamic sections here. */
3093 m32r_elf_finish_dynamic_symbol (bfd
*output_bfd
,
3094 struct bfd_link_info
*info
,
3095 struct elf_link_hash_entry
*h
,
3096 Elf_Internal_Sym
*sym
)
3098 struct elf_m32r_link_hash_table
*htab
;
3102 printf ("m32r_elf_finish_dynamic_symbol()\n");
3105 htab
= m32r_elf_hash_table (info
);
3109 if (h
->plt
.offset
!= (bfd_vma
) -1)
3117 Elf_Internal_Rela rela
;
3119 /* This symbol has an entry in the procedure linkage table. Set
3122 BFD_ASSERT (h
->dynindx
!= -1);
3124 splt
= htab
->root
.splt
;
3125 sgot
= htab
->root
.sgotplt
;
3126 srela
= htab
->root
.srelplt
;
3127 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
3129 /* Get the index in the procedure linkage table which
3130 corresponds to this symbol. This is the index of this symbol
3131 in all the symbols for which we are making plt entries. The
3132 first entry in the procedure linkage table is reserved. */
3133 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
3135 /* Get the offset into the .got table of the entry that
3136 corresponds to this function. Each .got entry is 4 bytes.
3137 The first three are reserved. */
3138 got_offset
= (plt_index
+ 3) * 4;
3140 /* Fill in the entry in the procedure linkage table. */
3141 if (! bfd_link_pic (info
))
3143 bfd_put_32 (output_bfd
,
3145 + (((sgot
->output_section
->vma
3146 + sgot
->output_offset
3147 + got_offset
) >> 16) & 0xffff)),
3148 splt
->contents
+ h
->plt
.offset
);
3149 bfd_put_32 (output_bfd
,
3151 + ((sgot
->output_section
->vma
3152 + sgot
->output_offset
3153 + got_offset
) & 0xffff)),
3154 splt
->contents
+ h
->plt
.offset
+ 4);
3155 bfd_put_32 (output_bfd
, PLT_ENTRY_WORD2
,
3156 splt
->contents
+ h
->plt
.offset
+ 8);
3157 bfd_put_32 (output_bfd
,
3159 + plt_index
* sizeof (Elf32_External_Rela
)),
3160 splt
->contents
+ h
->plt
.offset
+ 12);
3161 bfd_put_32 (output_bfd
,
3163 + (((unsigned int) ((- (h
->plt
.offset
+ 16)) >> 2)) & 0xffffff)),
3164 splt
->contents
+ h
->plt
.offset
+ 16);
3168 bfd_put_32 (output_bfd
,
3169 PLT_ENTRY_WORD0
+ got_offset
,
3170 splt
->contents
+ h
->plt
.offset
);
3171 bfd_put_32 (output_bfd
, PLT_ENTRY_WORD1
,
3172 splt
->contents
+ h
->plt
.offset
+ 4);
3173 bfd_put_32 (output_bfd
, PLT_ENTRY_WORD2
,
3174 splt
->contents
+ h
->plt
.offset
+ 8);
3175 bfd_put_32 (output_bfd
,
3177 + plt_index
* sizeof (Elf32_External_Rela
)),
3178 splt
->contents
+ h
->plt
.offset
+ 12);
3179 bfd_put_32 (output_bfd
,
3181 + (((unsigned int) ((- (h
->plt
.offset
+ 16)) >> 2)) & 0xffffff)),
3182 splt
->contents
+ h
->plt
.offset
+ 16);
3185 /* Fill in the entry in the global offset table. */
3186 bfd_put_32 (output_bfd
,
3187 (splt
->output_section
->vma
3188 + splt
->output_offset
3190 + 12), /* same offset */
3191 sgot
->contents
+ got_offset
);
3193 /* Fill in the entry in the .rela.plt section. */
3194 rela
.r_offset
= (sgot
->output_section
->vma
3195 + sgot
->output_offset
3197 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_M32R_JMP_SLOT
);
3199 loc
= srela
->contents
;
3200 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
3201 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3203 if (!h
->def_regular
)
3205 /* Mark the symbol as undefined, rather than as defined in
3206 the .plt section. Leave the value alone. */
3207 sym
->st_shndx
= SHN_UNDEF
;
3211 if (h
->got
.offset
!= (bfd_vma
) -1)
3215 Elf_Internal_Rela rela
;
3217 /* This symbol has an entry in the global offset table. Set it
3220 sgot
= htab
->root
.sgot
;
3221 srela
= htab
->root
.srelgot
;
3222 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
3224 rela
.r_offset
= (sgot
->output_section
->vma
3225 + sgot
->output_offset
3226 + (h
->got
.offset
&~ 1));
3228 /* If this is a -Bsymbolic link, and the symbol is defined
3229 locally, we just want to emit a RELATIVE reloc. Likewise if
3230 the symbol was forced to be local because of a version file.
3231 The entry in the global offset table will already have been
3232 initialized in the relocate_section function. */
3233 if (bfd_link_pic (info
)
3239 rela
.r_info
= ELF32_R_INFO (0, R_M32R_RELATIVE
);
3240 rela
.r_addend
= (h
->root
.u
.def
.value
3241 + h
->root
.u
.def
.section
->output_section
->vma
3242 + h
->root
.u
.def
.section
->output_offset
);
3246 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
3247 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ h
->got
.offset
);
3248 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_M32R_GLOB_DAT
);
3252 loc
= srela
->contents
;
3253 loc
+= srela
->reloc_count
* sizeof (Elf32_External_Rela
);
3254 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3255 ++srela
->reloc_count
;
3261 Elf_Internal_Rela rela
;
3263 /* This symbols needs a copy reloc. Set it up. */
3265 BFD_ASSERT (h
->dynindx
!= -1
3266 && (h
->root
.type
== bfd_link_hash_defined
3267 || h
->root
.type
== bfd_link_hash_defweak
));
3269 s
= bfd_get_linker_section (htab
->root
.dynobj
, ".rela.bss");
3270 BFD_ASSERT (s
!= NULL
);
3272 rela
.r_offset
= (h
->root
.u
.def
.value
3273 + h
->root
.u
.def
.section
->output_section
->vma
3274 + h
->root
.u
.def
.section
->output_offset
);
3275 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_M32R_COPY
);
3278 loc
+= s
->reloc_count
* sizeof (Elf32_External_Rela
);
3279 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3283 /* Mark some specially defined symbols as absolute. */
3284 if (h
== htab
->root
.hdynamic
|| h
== htab
->root
.hgot
)
3285 sym
->st_shndx
= SHN_ABS
;
3291 /* Finish up the dynamic sections. */
3294 m32r_elf_finish_dynamic_sections (bfd
*output_bfd
,
3295 struct bfd_link_info
*info
)
3297 struct elf_m32r_link_hash_table
*htab
;
3303 printf ("m32r_elf_finish_dynamic_sections()\n");
3306 htab
= m32r_elf_hash_table (info
);
3310 dynobj
= htab
->root
.dynobj
;
3312 sgot
= htab
->root
.sgotplt
;
3313 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
3315 if (htab
->root
.dynamic_sections_created
)
3318 Elf32_External_Dyn
*dyncon
, *dynconend
;
3320 BFD_ASSERT (sgot
!= NULL
&& sdyn
!= NULL
);
3322 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
3323 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
3325 for (; dyncon
< dynconend
; dyncon
++)
3327 Elf_Internal_Dyn dyn
;
3330 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3338 s
= htab
->root
.sgotplt
;
3341 s
= htab
->root
.srelplt
;
3343 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
3344 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3348 s
= htab
->root
.srelplt
;
3349 dyn
.d_un
.d_val
= s
->size
;
3350 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3355 /* Fill in the first entry in the procedure linkage table. */
3356 splt
= htab
->root
.splt
;
3357 if (splt
&& splt
->size
> 0)
3359 if (bfd_link_pic (info
))
3361 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD0
, splt
->contents
);
3362 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD1
, splt
->contents
+ 4);
3363 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD2
, splt
->contents
+ 8);
3364 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD3
, splt
->contents
+ 12);
3365 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD4
, splt
->contents
+ 16);
3370 /* addr = .got + 4 */
3371 addr
= sgot
->output_section
->vma
+ sgot
->output_offset
+ 4;
3372 bfd_put_32 (output_bfd
,
3373 PLT0_ENTRY_WORD0
| ((addr
>> 16) & 0xffff),
3375 bfd_put_32 (output_bfd
,
3376 PLT0_ENTRY_WORD1
| (addr
& 0xffff),
3377 splt
->contents
+ 4);
3378 bfd_put_32 (output_bfd
, PLT0_ENTRY_WORD2
, splt
->contents
+ 8);
3379 bfd_put_32 (output_bfd
, PLT0_ENTRY_WORD3
, splt
->contents
+ 12);
3380 bfd_put_32 (output_bfd
, PLT0_ENTRY_WORD4
, splt
->contents
+ 16);
3383 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
3388 /* Fill in the first three entries in the global offset table. */
3389 if (sgot
&& sgot
->size
> 0)
3392 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
3394 bfd_put_32 (output_bfd
,
3395 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
3397 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
3398 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
3400 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
3407 /* Set the right machine number. */
3410 m32r_elf_object_p (bfd
*abfd
)
3412 switch (elf_elfheader (abfd
)->e_flags
& EF_M32R_ARCH
)
3415 case E_M32R_ARCH
: (void) bfd_default_set_arch_mach (abfd
, bfd_arch_m32r
, bfd_mach_m32r
); break;
3416 case E_M32RX_ARCH
: (void) bfd_default_set_arch_mach (abfd
, bfd_arch_m32r
, bfd_mach_m32rx
); break;
3417 case E_M32R2_ARCH
: (void) bfd_default_set_arch_mach (abfd
, bfd_arch_m32r
, bfd_mach_m32r2
); break;
3422 /* Store the machine number in the flags field. */
3425 m32r_elf_final_write_processing (bfd
*abfd
,
3426 bfd_boolean linker ATTRIBUTE_UNUSED
)
3430 switch (bfd_get_mach (abfd
))
3433 case bfd_mach_m32r
: val
= E_M32R_ARCH
; break;
3434 case bfd_mach_m32rx
: val
= E_M32RX_ARCH
; break;
3435 case bfd_mach_m32r2
: val
= E_M32R2_ARCH
; break;
3438 elf_elfheader (abfd
)->e_flags
&=~ EF_M32R_ARCH
;
3439 elf_elfheader (abfd
)->e_flags
|= val
;
3442 /* Function to keep M32R specific file flags. */
3445 m32r_elf_set_private_flags (bfd
*abfd
, flagword flags
)
3447 BFD_ASSERT (!elf_flags_init (abfd
)
3448 || elf_elfheader (abfd
)->e_flags
== flags
);
3450 elf_elfheader (abfd
)->e_flags
= flags
;
3451 elf_flags_init (abfd
) = TRUE
;
3455 /* Merge backend specific data from an object file to the output
3456 object file when linking. */
3459 m32r_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
3461 bfd
*obfd
= info
->output_bfd
;
3465 if ( bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
3466 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
3469 in_flags
= elf_elfheader (ibfd
)->e_flags
;
3470 out_flags
= elf_elfheader (obfd
)->e_flags
;
3472 if (! elf_flags_init (obfd
))
3474 /* If the input is the default architecture then do not
3475 bother setting the flags for the output architecture,
3476 instead allow future merges to do this. If no future
3477 merges ever set these flags then they will retain their
3478 unitialised values, which surprise surprise, correspond
3479 to the default values. */
3480 if (bfd_get_arch_info (ibfd
)->the_default
)
3483 elf_flags_init (obfd
) = TRUE
;
3484 elf_elfheader (obfd
)->e_flags
= in_flags
;
3486 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
3487 && bfd_get_arch_info (obfd
)->the_default
)
3488 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
3489 bfd_get_mach (ibfd
));
3494 /* Check flag compatibility. */
3495 if (in_flags
== out_flags
)
3498 if ((in_flags
& EF_M32R_ARCH
) != (out_flags
& EF_M32R_ARCH
))
3500 if ( ((in_flags
& EF_M32R_ARCH
) != E_M32R_ARCH
)
3501 || ((out_flags
& EF_M32R_ARCH
) == E_M32R_ARCH
)
3502 || ((in_flags
& EF_M32R_ARCH
) == E_M32R2_ARCH
))
3505 (_("%B: Instruction set mismatch with previous modules"), ibfd
);
3507 bfd_set_error (bfd_error_bad_value
);
3515 /* Display the flags field. */
3518 m32r_elf_print_private_bfd_data (bfd
*abfd
, void * ptr
)
3520 FILE * file
= (FILE *) ptr
;
3522 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
3524 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
3526 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
3528 switch (elf_elfheader (abfd
)->e_flags
& EF_M32R_ARCH
)
3531 case E_M32R_ARCH
: fprintf (file
, _(": m32r instructions")); break;
3532 case E_M32RX_ARCH
: fprintf (file
, _(": m32rx instructions")); break;
3533 case E_M32R2_ARCH
: fprintf (file
, _(": m32r2 instructions")); break;
3542 m32r_elf_gc_mark_hook (asection
*sec
,
3543 struct bfd_link_info
*info
,
3544 Elf_Internal_Rela
*rel
,
3545 struct elf_link_hash_entry
*h
,
3546 Elf_Internal_Sym
*sym
)
3549 switch (ELF32_R_TYPE (rel
->r_info
))
3551 case R_M32R_GNU_VTINHERIT
:
3552 case R_M32R_GNU_VTENTRY
:
3553 case R_M32R_RELA_GNU_VTINHERIT
:
3554 case R_M32R_RELA_GNU_VTENTRY
:
3558 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
3561 /* Look through the relocs for a section during the first phase.
3562 Since we don't do .gots or .plts, we just need to consider the
3563 virtual table relocs for gc. */
3566 m32r_elf_check_relocs (bfd
*abfd
,
3567 struct bfd_link_info
*info
,
3569 const Elf_Internal_Rela
*relocs
)
3571 Elf_Internal_Shdr
*symtab_hdr
;
3572 struct elf_link_hash_entry
**sym_hashes
;
3573 const Elf_Internal_Rela
*rel
;
3574 const Elf_Internal_Rela
*rel_end
;
3575 struct elf_m32r_link_hash_table
*htab
;
3579 if (bfd_link_relocatable (info
))
3583 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3584 sym_hashes
= elf_sym_hashes (abfd
);
3586 htab
= m32r_elf_hash_table (info
);
3590 dynobj
= htab
->root
.dynobj
;
3592 rel_end
= relocs
+ sec
->reloc_count
;
3593 for (rel
= relocs
; rel
< rel_end
; rel
++)
3596 struct elf_link_hash_entry
*h
;
3597 unsigned long r_symndx
;
3599 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3600 r_type
= ELF32_R_TYPE (rel
->r_info
);
3601 if (r_symndx
< symtab_hdr
->sh_info
)
3605 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3606 while (h
->root
.type
== bfd_link_hash_indirect
3607 || h
->root
.type
== bfd_link_hash_warning
)
3608 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3611 /* Some relocs require a global offset table. */
3612 if (htab
->root
.sgot
== NULL
)
3616 case R_M32R_GOT16_HI_ULO
:
3617 case R_M32R_GOT16_HI_SLO
:
3619 case R_M32R_GOTOFF_HI_ULO
:
3620 case R_M32R_GOTOFF_HI_SLO
:
3621 case R_M32R_GOTOFF_LO
:
3622 case R_M32R_GOT16_LO
:
3623 case R_M32R_GOTPC24
:
3624 case R_M32R_GOTPC_HI_ULO
:
3625 case R_M32R_GOTPC_HI_SLO
:
3626 case R_M32R_GOTPC_LO
:
3629 htab
->root
.dynobj
= dynobj
= abfd
;
3630 if (!_bfd_elf_create_got_section (dynobj
, info
))
3641 case R_M32R_GOT16_HI_ULO
:
3642 case R_M32R_GOT16_HI_SLO
:
3643 case R_M32R_GOT16_LO
:
3647 h
->got
.refcount
+= 1;
3650 bfd_signed_vma
*local_got_refcounts
;
3652 /* This is a global offset table entry for a local
3654 local_got_refcounts
= elf_local_got_refcounts (abfd
);
3655 if (local_got_refcounts
== NULL
)
3659 size
= symtab_hdr
->sh_info
;
3660 size
*= sizeof (bfd_signed_vma
);
3661 local_got_refcounts
= bfd_zalloc (abfd
, size
);
3662 if (local_got_refcounts
== NULL
)
3664 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
3666 local_got_refcounts
[r_symndx
] += 1;
3670 case R_M32R_26_PLTREL
:
3671 /* This symbol requires a procedure linkage table entry. We
3672 actually build the entry in adjust_dynamic_symbol,
3673 because this might be a case of linking PIC code without
3674 linking in any dynamic objects, in which case we don't
3675 need to generate a procedure linkage table after all. */
3677 /* If this is a local symbol, we resolve it directly without
3678 creating a procedure linkage table entry. */
3682 if (h
->forced_local
)
3686 h
->plt
.refcount
+= 1;
3689 case R_M32R_16_RELA
:
3690 case R_M32R_24_RELA
:
3691 case R_M32R_32_RELA
:
3693 case R_M32R_HI16_ULO_RELA
:
3694 case R_M32R_HI16_SLO_RELA
:
3695 case R_M32R_LO16_RELA
:
3696 case R_M32R_SDA16_RELA
:
3697 case R_M32R_10_PCREL_RELA
:
3698 case R_M32R_18_PCREL_RELA
:
3699 case R_M32R_26_PCREL_RELA
:
3701 if (h
!= NULL
&& !bfd_link_pic (info
))
3704 h
->plt
.refcount
+= 1;
3707 /* If we are creating a shared library, and this is a reloc
3708 against a global symbol, or a non PC relative reloc
3709 against a local symbol, then we need to copy the reloc
3710 into the shared library. However, if we are linking with
3711 -Bsymbolic, we do not need to copy a reloc against a
3712 global symbol which is defined in an object we are
3713 including in the link (i.e., DEF_REGULAR is set). At
3714 this point we have not seen all the input files, so it is
3715 possible that DEF_REGULAR is not set now but will be set
3716 later (it is never cleared). We account for that
3717 possibility below by storing information in the
3718 dyn_relocs field of the hash table entry. A similar
3719 situation occurs when creating shared libraries and symbol
3720 visibility changes render the symbol local.
3722 If on the other hand, we are creating an executable, we
3723 may need to keep relocations for symbols satisfied by a
3724 dynamic library if we manage to avoid copy relocs for the
3726 if ((bfd_link_pic (info
)
3727 && (sec
->flags
& SEC_ALLOC
) != 0
3728 && (( r_type
!= R_M32R_26_PCREL_RELA
3729 && r_type
!= R_M32R_18_PCREL_RELA
3730 && r_type
!= R_M32R_10_PCREL_RELA
3731 && r_type
!= R_M32R_REL32
)
3733 && (! info
->symbolic
3734 || h
->root
.type
== bfd_link_hash_defweak
3735 || !h
->def_regular
))))
3736 || (!bfd_link_pic (info
)
3737 && (sec
->flags
& SEC_ALLOC
) != 0
3739 && (h
->root
.type
== bfd_link_hash_defweak
3740 || !h
->def_regular
)))
3742 struct elf_m32r_dyn_relocs
*p
;
3743 struct elf_m32r_dyn_relocs
**head
;
3746 htab
->root
.dynobj
= dynobj
= abfd
;
3748 /* When creating a shared object, we must copy these
3749 relocs into the output file. We create a reloc
3750 section in dynobj and make room for the reloc. */
3753 sreloc
= _bfd_elf_make_dynamic_reloc_section
3754 (sec
, dynobj
, 2, abfd
, /*rela?*/ TRUE
);
3760 /* If this is a global symbol, we count the number of
3761 relocations we need for this symbol. */
3763 head
= &((struct elf_m32r_link_hash_entry
*) h
)->dyn_relocs
;
3766 /* Track dynamic relocs needed for local syms too. */
3769 Elf_Internal_Sym
*isym
;
3771 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
3776 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
3780 vpp
= &elf_section_data (s
)->local_dynrel
;
3781 head
= (struct elf_m32r_dyn_relocs
**) vpp
;
3785 if (p
== NULL
|| p
->sec
!= sec
)
3787 bfd_size_type amt
= sizeof (*p
);
3789 p
= bfd_alloc (dynobj
, amt
);
3800 if ( ELF32_R_TYPE (rel
->r_info
) == R_M32R_26_PCREL_RELA
3801 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_18_PCREL_RELA
3802 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_10_PCREL_RELA
3803 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_REL32
)
3808 /* This relocation describes the C++ object vtable hierarchy.
3809 Reconstruct it for later use during GC. */
3810 case R_M32R_RELA_GNU_VTINHERIT
:
3811 case R_M32R_GNU_VTINHERIT
:
3812 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3816 /* This relocation describes which C++ vtable entries are actually
3817 used. Record for later use during GC. */
3818 case R_M32R_GNU_VTENTRY
:
3819 BFD_ASSERT (h
!= NULL
);
3821 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
3824 case R_M32R_RELA_GNU_VTENTRY
:
3825 BFD_ASSERT (h
!= NULL
);
3827 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3836 static const struct bfd_elf_special_section m32r_elf_special_sections
[] =
3838 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
3839 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
3840 { NULL
, 0, 0, 0, 0 }
3843 static enum elf_reloc_type_class
3844 m32r_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3845 const asection
*rel_sec ATTRIBUTE_UNUSED
,
3846 const Elf_Internal_Rela
*rela
)
3848 switch ((int) ELF32_R_TYPE (rela
->r_info
))
3850 case R_M32R_RELATIVE
: return reloc_class_relative
;
3851 case R_M32R_JMP_SLOT
: return reloc_class_plt
;
3852 case R_M32R_COPY
: return reloc_class_copy
;
3853 default: return reloc_class_normal
;
3857 #define ELF_ARCH bfd_arch_m32r
3858 #define ELF_TARGET_ID M32R_ELF_DATA
3859 #define ELF_MACHINE_CODE EM_M32R
3860 #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
3861 #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
3863 #define TARGET_BIG_SYM m32r_elf32_vec
3864 #define TARGET_BIG_NAME "elf32-m32r"
3865 #define TARGET_LITTLE_SYM m32r_elf32_le_vec
3866 #define TARGET_LITTLE_NAME "elf32-m32rle"
3868 #define elf_info_to_howto m32r_info_to_howto
3869 #define elf_info_to_howto_rel m32r_info_to_howto_rel
3870 #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
3871 #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
3872 #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
3873 #define elf_backend_relocate_section m32r_elf_relocate_section
3874 #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
3875 #define elf_backend_check_relocs m32r_elf_check_relocs
3877 #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
3878 #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
3879 #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
3880 #define elf_backend_omit_section_dynsym \
3881 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
3882 #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
3883 #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
3884 #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
3885 #define elf_backend_reloc_type_class m32r_elf_reloc_type_class
3886 #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
3888 #define elf_backend_can_gc_sections 1
3890 #define elf_backend_rela_normal 1
3892 #define elf_backend_can_refcount 1
3893 #define elf_backend_want_got_plt 1
3894 #define elf_backend_plt_readonly 1
3895 #define elf_backend_want_plt_sym 0
3896 #define elf_backend_got_header_size 12
3897 #define elf_backend_dtrel_excludes_plt 1
3899 #define elf_backend_may_use_rel_p 1
3900 #ifdef USE_M32R_OLD_RELOC
3901 #define elf_backend_default_use_rela_p 0
3902 #define elf_backend_may_use_rela_p 0
3904 #define elf_backend_default_use_rela_p 1
3905 #define elf_backend_may_use_rela_p 1
3908 #define elf_backend_object_p m32r_elf_object_p
3909 #define elf_backend_final_write_processing m32r_elf_final_write_processing
3910 #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
3911 #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
3912 #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
3913 #define elf_backend_special_sections m32r_elf_special_sections
3915 #define elf_backend_linux_prpsinfo32_ugid16 TRUE
3917 #include "elf32-target.h"
3919 #undef ELF_MAXPAGESIZE
3920 #define ELF_MAXPAGESIZE 0x1000
3922 #undef TARGET_BIG_SYM
3923 #define TARGET_BIG_SYM m32r_elf32_linux_vec
3924 #undef TARGET_BIG_NAME
3925 #define TARGET_BIG_NAME "elf32-m32r-linux"
3926 #undef TARGET_LITTLE_SYM
3927 #define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
3928 #undef TARGET_LITTLE_NAME
3929 #define TARGET_LITTLE_NAME "elf32-m32rle-linux"
3931 #define elf32_bed elf32_m32r_lin_bed
3933 #include "elf32-target.h"