1 /* M32R-specific support for 32-bit ELF.
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2006, 2007 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, 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 2, /* size (0 = byte, 1 = short, 2 = long) */
479 FALSE
, /* pc_relative */
481 complain_overflow_bitfield
, /* 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 BFD_ASSERT (ELF32_R_TYPE(dst
->r_info
) <= (unsigned int) R_M32R_GNU_VTENTRY
);
1284 cache_ptr
->howto
= &m32r_elf_howto_table
[r_type
];
1288 m32r_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
1290 Elf_Internal_Rela
*dst
)
1292 BFD_ASSERT ((ELF32_R_TYPE(dst
->r_info
) == (unsigned int) R_M32R_NONE
)
1293 || ((ELF32_R_TYPE(dst
->r_info
) > (unsigned int) R_M32R_GNU_VTENTRY
)
1294 && (ELF32_R_TYPE(dst
->r_info
) < (unsigned int) R_M32R_max
)));
1295 cache_ptr
->howto
= &m32r_elf_howto_table
[ELF32_R_TYPE(dst
->r_info
)];
1299 /* Given a BFD section, try to locate the corresponding ELF section
1303 _bfd_m32r_elf_section_from_bfd_section (bfd
*abfd ATTRIBUTE_UNUSED
,
1307 if (strcmp (bfd_get_section_name (abfd
, sec
), ".scommon") == 0)
1309 *retval
= SHN_M32R_SCOMMON
;
1315 /* M32R ELF uses two common sections. One is the usual one, and the other
1316 is for small objects. All the small objects are kept together, and then
1317 referenced via one register, which yields faster assembler code. It is
1318 up to the compiler to emit an instruction to load the register with
1319 _SDA_BASE. This is what we use for the small common section. This
1320 approach is copied from elf32-mips.c. */
1321 static asection m32r_elf_scom_section
;
1322 static asymbol m32r_elf_scom_symbol
;
1323 static asymbol
*m32r_elf_scom_symbol_ptr
;
1325 /* Handle the special M32R section numbers that a symbol may use. */
1328 _bfd_m32r_elf_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
, asymbol
*asym
)
1330 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;
1332 switch (elfsym
->internal_elf_sym
.st_shndx
)
1334 case SHN_M32R_SCOMMON
:
1335 if (m32r_elf_scom_section
.name
== NULL
)
1337 /* Initialize the small common section. */
1338 m32r_elf_scom_section
.name
= ".scommon";
1339 m32r_elf_scom_section
.flags
= SEC_IS_COMMON
;
1340 m32r_elf_scom_section
.output_section
= &m32r_elf_scom_section
;
1341 m32r_elf_scom_section
.symbol
= &m32r_elf_scom_symbol
;
1342 m32r_elf_scom_section
.symbol_ptr_ptr
= &m32r_elf_scom_symbol_ptr
;
1343 m32r_elf_scom_symbol
.name
= ".scommon";
1344 m32r_elf_scom_symbol
.flags
= BSF_SECTION_SYM
;
1345 m32r_elf_scom_symbol
.section
= &m32r_elf_scom_section
;
1346 m32r_elf_scom_symbol_ptr
= &m32r_elf_scom_symbol
;
1348 asym
->section
= &m32r_elf_scom_section
;
1349 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
1354 /* Hook called by the linker routine which adds symbols from an object
1355 file. We must handle the special M32R section numbers here.
1356 We also keep watching for whether we need to create the sdata special
1360 m32r_elf_add_symbol_hook (bfd
*abfd
,
1361 struct bfd_link_info
*info
,
1362 Elf_Internal_Sym
*sym
,
1364 flagword
*flagsp ATTRIBUTE_UNUSED
,
1368 if (! info
->relocatable
1369 && (*namep
)[0] == '_' && (*namep
)[1] == 'S'
1370 && strcmp (*namep
, "_SDA_BASE_") == 0
1371 && is_elf_hash_table (info
->hash
))
1373 /* This is simpler than using _bfd_elf_create_linker_section
1374 (our needs are simpler than ppc's needs). Also
1375 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1376 section already exists a new one is created that follows it which
1377 screws of _SDA_BASE_ address calcs because output_offset != 0. */
1378 struct elf_link_hash_entry
*h
;
1379 struct bfd_link_hash_entry
*bh
;
1380 asection
*s
= bfd_get_section_by_name (abfd
, ".sdata");
1382 /* The following code was cobbled from elf32-ppc.c and elflink.c. */
1385 flagword flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
1386 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
1388 s
= bfd_make_section_anyway_with_flags (abfd
, ".sdata",
1392 bfd_set_section_alignment (abfd
, s
, 2);
1395 bh
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_",
1396 FALSE
, FALSE
, FALSE
);
1398 if ((bh
== NULL
|| bh
->type
== bfd_link_hash_undefined
)
1399 && !(_bfd_generic_link_add_one_symbol (info
,
1407 get_elf_backend_data (abfd
)->collect
,
1410 h
= (struct elf_link_hash_entry
*) bh
;
1411 h
->type
= STT_OBJECT
;
1414 switch (sym
->st_shndx
)
1416 case SHN_M32R_SCOMMON
:
1417 *secp
= bfd_make_section_old_way (abfd
, ".scommon");
1418 (*secp
)->flags
|= SEC_IS_COMMON
;
1419 *valp
= sym
->st_size
;
1426 /* We have to figure out the SDA_BASE value, so that we can adjust the
1427 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1428 BFD. If we can't find it, we're stuck. We cache it in the ELF
1429 target data. We don't need to adjust the symbol value for an
1430 external symbol if we are producing relocatable output. */
1432 static bfd_reloc_status_type
1433 m32r_elf_final_sda_base (bfd
*output_bfd
,
1434 struct bfd_link_info
*info
,
1435 const char **error_message
,
1438 if (elf_gp (output_bfd
) == 0)
1440 struct bfd_link_hash_entry
*h
;
1442 h
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_", FALSE
, FALSE
, TRUE
);
1443 if (h
!= NULL
&& h
->type
== bfd_link_hash_defined
)
1444 elf_gp (output_bfd
) = (h
->u
.def
.value
1445 + h
->u
.def
.section
->output_section
->vma
1446 + h
->u
.def
.section
->output_offset
);
1449 /* Only get the error once. */
1450 *psb
= elf_gp (output_bfd
) = 4;
1452 (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1453 return bfd_reloc_dangerous
;
1456 *psb
= elf_gp (output_bfd
);
1457 return bfd_reloc_ok
;
1460 /* Return size of a PLT entry. */
1461 #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1463 /* The m32r linker needs to keep track of the number of relocs that it
1464 decides to copy in check_relocs for each symbol. This is so that
1465 it can discard PC relative relocs if it doesn't need them when
1466 linking with -Bsymbolic. We store the information in a field
1467 extending the regular ELF linker hash table. */
1469 /* This structure keeps track of the number of PC relative relocs we
1470 have copied for a given symbol. */
1472 struct elf_m32r_pcrel_relocs_copied
1475 struct elf_m32r_pcrel_relocs_copied
*next
;
1476 /* A section in dynobj. */
1478 /* Number of relocs copied in this section. */
1479 bfd_size_type count
;
1482 /* The sh linker needs to keep track of the number of relocs that it
1483 decides to copy as dynamic relocs in check_relocs for each symbol.
1484 This is so that it can later discard them if they are found to be
1485 unnecessary. We store the information in a field extending the
1486 regular ELF linker hash table. */
1488 struct elf_m32r_dyn_relocs
1490 struct elf_m32r_dyn_relocs
*next
;
1492 /* The input section of the reloc. */
1495 /* Total number of relocs copied for the input section. */
1496 bfd_size_type count
;
1498 /* Number of pc-relative relocs copied for the input section. */
1499 bfd_size_type pc_count
;
1503 /* m32r ELF linker hash entry. */
1505 struct elf_m32r_link_hash_entry
1507 struct elf_link_hash_entry root
;
1509 /* Track dynamic relocs copied for this symbol. */
1510 struct elf_m32r_dyn_relocs
*dyn_relocs
;
1513 /* m32r ELF linker hash table. */
1515 struct elf_m32r_link_hash_table
1517 struct elf_link_hash_table root
;
1519 /* Short-cuts to get to dynamic linker sections. */
1528 /* Small local sym to section mapping cache. */
1529 struct sym_sec_cache sym_sec
;
1532 /* Traverse an m32r ELF linker hash table. */
1534 #define m32r_elf_link_hash_traverse(table, func, info) \
1535 (elf_link_hash_traverse \
1537 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
1540 /* Get the m32r ELF linker hash table from a link_info structure. */
1543 #define m32r_elf_hash_table(p) \
1544 ((struct elf_m32r_link_hash_table *) ((p)->hash))
1546 /* Create an entry in an m32r ELF linker hash table. */
1548 static struct bfd_hash_entry
*
1549 m32r_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
1550 struct bfd_hash_table
*table
,
1553 struct elf_m32r_link_hash_entry
*ret
=
1554 (struct elf_m32r_link_hash_entry
*) entry
;
1556 /* Allocate the structure if it has not already been allocated by a
1559 ret
= bfd_hash_allocate (table
,
1560 sizeof (struct elf_m32r_link_hash_entry
));
1564 /* Call the allocation method of the superclass. */
1565 ret
= ((struct elf_m32r_link_hash_entry
*)
1566 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1570 struct elf_m32r_link_hash_entry
*eh
;
1572 eh
= (struct elf_m32r_link_hash_entry
*) ret
;
1573 eh
->dyn_relocs
= NULL
;
1576 return (struct bfd_hash_entry
*) ret
;
1579 /* Create an m32r ELF linker hash table. */
1581 static struct bfd_link_hash_table
*
1582 m32r_elf_link_hash_table_create (bfd
*abfd
)
1584 struct elf_m32r_link_hash_table
*ret
;
1585 bfd_size_type amt
= sizeof (struct elf_m32r_link_hash_table
);
1587 ret
= bfd_malloc (amt
);
1591 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1592 m32r_elf_link_hash_newfunc
,
1593 sizeof (struct elf_m32r_link_hash_entry
)))
1600 ret
->sgotplt
= NULL
;
1601 ret
->srelgot
= NULL
;
1603 ret
->srelplt
= NULL
;
1604 ret
->sdynbss
= NULL
;
1605 ret
->srelbss
= NULL
;
1606 ret
->sym_sec
.abfd
= NULL
;
1608 return &ret
->root
.root
;
1611 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1612 shortcuts to them in our hash table. */
1615 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
1617 struct elf_m32r_link_hash_table
*htab
;
1619 if (! _bfd_elf_create_got_section (dynobj
, info
))
1622 htab
= m32r_elf_hash_table (info
);
1623 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
1624 htab
->sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
1625 if (! htab
->sgot
|| ! htab
->sgotplt
)
1628 htab
->srelgot
= bfd_make_section_with_flags (dynobj
, ".rela.got",
1633 | SEC_LINKER_CREATED
1635 if (htab
->srelgot
== NULL
1636 || ! bfd_set_section_alignment (dynobj
, htab
->srelgot
, 2))
1642 /* Create dynamic sections when linking against a dynamic object. */
1645 m32r_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
1647 struct elf_m32r_link_hash_table
*htab
;
1648 flagword flags
, pltflags
;
1650 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
1651 int ptralign
= 2; /* 32bit */
1653 htab
= m32r_elf_hash_table (info
);
1655 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1656 .rel[a].bss sections. */
1657 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
1658 | SEC_LINKER_CREATED
);
1661 pltflags
|= SEC_CODE
;
1662 if (bed
->plt_not_loaded
)
1663 pltflags
&= ~ (SEC_LOAD
| SEC_HAS_CONTENTS
);
1664 if (bed
->plt_readonly
)
1665 pltflags
|= SEC_READONLY
;
1667 s
= bfd_make_section_with_flags (abfd
, ".plt", pltflags
);
1670 || ! bfd_set_section_alignment (abfd
, s
, bed
->plt_alignment
))
1673 if (bed
->want_plt_sym
)
1675 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1677 struct bfd_link_hash_entry
*bh
= NULL
;
1678 struct elf_link_hash_entry
*h
;
1680 if (! (_bfd_generic_link_add_one_symbol
1681 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
1682 (bfd_vma
) 0, NULL
, FALSE
,
1683 get_elf_backend_data (abfd
)->collect
, &bh
)))
1685 h
= (struct elf_link_hash_entry
*) bh
;
1687 h
->type
= STT_OBJECT
;
1688 htab
->root
.hplt
= h
;
1691 && ! bfd_elf_link_record_dynamic_symbol (info
, h
))
1695 s
= bfd_make_section_with_flags (abfd
,
1696 bed
->default_use_rela_p
? ".rela.plt" : ".rel.plt",
1697 flags
| SEC_READONLY
);
1700 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
1703 if (htab
->sgot
== NULL
1704 && ! create_got_section (abfd
, info
))
1708 const char *secname
;
1713 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
1715 secflags
= bfd_get_section_flags (abfd
, sec
);
1716 if ((secflags
& (SEC_DATA
| SEC_LINKER_CREATED
))
1717 || ((secflags
& SEC_HAS_CONTENTS
) != SEC_HAS_CONTENTS
))
1719 secname
= bfd_get_section_name (abfd
, sec
);
1720 relname
= bfd_malloc ((bfd_size_type
) strlen (secname
) + 6);
1721 strcpy (relname
, ".rela");
1722 strcat (relname
, secname
);
1723 if (bfd_get_section_by_name (abfd
, secname
))
1725 s
= bfd_make_section_with_flags (abfd
, relname
,
1726 flags
| SEC_READONLY
);
1728 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
1733 if (bed
->want_dynbss
)
1735 /* The .dynbss section is a place to put symbols which are defined
1736 by dynamic objects, are referenced by regular objects, and are
1737 not functions. We must allocate space for them in the process
1738 image and use a R_*_COPY reloc to tell the dynamic linker to
1739 initialize them at run time. The linker script puts the .dynbss
1740 section into the .bss section of the final image. */
1741 s
= bfd_make_section_with_flags (abfd
, ".dynbss",
1742 SEC_ALLOC
| SEC_LINKER_CREATED
);
1746 /* The .rel[a].bss section holds copy relocs. This section is not
1747 normally needed. We need to create it here, though, so that the
1748 linker will map it to an output section. We can't just create it
1749 only if we need it, because we will not know whether we need it
1750 until we have seen all the input files, and the first time the
1751 main linker code calls BFD after examining all the input files
1752 (size_dynamic_sections) the input sections have already been
1753 mapped to the output sections. If the section turns out not to
1754 be needed, we can discard it later. We will never need this
1755 section when generating a shared object, since they do not use
1759 s
= bfd_make_section_with_flags (abfd
,
1760 (bed
->default_use_rela_p
1761 ? ".rela.bss" : ".rel.bss"),
1762 flags
| SEC_READONLY
);
1765 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
1773 /* Copy the extra info we tack onto an elf_link_hash_entry. */
1776 m32r_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
1777 struct elf_link_hash_entry
*dir
,
1778 struct elf_link_hash_entry
*ind
)
1780 struct elf_m32r_link_hash_entry
* edir
;
1781 struct elf_m32r_link_hash_entry
* eind
;
1783 edir
= (struct elf_m32r_link_hash_entry
*) dir
;
1784 eind
= (struct elf_m32r_link_hash_entry
*) ind
;
1786 if (eind
->dyn_relocs
!= NULL
)
1788 if (edir
->dyn_relocs
!= NULL
)
1790 struct elf_m32r_dyn_relocs
**pp
;
1791 struct elf_m32r_dyn_relocs
*p
;
1793 /* Add reloc counts against the indirect sym to the direct sym
1794 list. Merge any entries against the same section. */
1795 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
;)
1797 struct elf_m32r_dyn_relocs
*q
;
1799 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
1800 if (q
->sec
== p
->sec
)
1802 q
->pc_count
+= p
->pc_count
;
1803 q
->count
+= p
->count
;
1810 *pp
= edir
->dyn_relocs
;
1813 edir
->dyn_relocs
= eind
->dyn_relocs
;
1814 eind
->dyn_relocs
= NULL
;
1817 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
1821 /* Adjust a symbol defined by a dynamic object and referenced by a
1822 regular object. The current definition is in some section of the
1823 dynamic object, but we're not including those sections. We have to
1824 change the definition to something the rest of the link can
1828 m32r_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
1829 struct elf_link_hash_entry
*h
)
1831 struct elf_m32r_link_hash_table
*htab
;
1832 struct elf_m32r_link_hash_entry
*eh
;
1833 struct elf_m32r_dyn_relocs
*p
;
1836 unsigned int power_of_two
;
1839 printf ("m32r_elf_adjust_dynamic_symbol()\n");
1842 dynobj
= elf_hash_table (info
)->dynobj
;
1844 /* Make sure we know what is going on here. */
1845 BFD_ASSERT (dynobj
!= NULL
1847 || h
->u
.weakdef
!= NULL
1850 && !h
->def_regular
)));
1852 /* If this is a function, put it in the procedure linkage table. We
1853 will fill in the contents of the procedure linkage table later,
1854 when we know the address of the .got section. */
1855 if (h
->type
== STT_FUNC
1861 && h
->root
.type
!= bfd_link_hash_undefweak
1862 && h
->root
.type
!= bfd_link_hash_undefined
)
1864 /* This case can occur if we saw a PLT reloc in an input
1865 file, but the symbol was never referred to by a dynamic
1866 object. In such a case, we don't actually need to build
1867 a procedure linkage table, and we can just do a PCREL
1869 h
->plt
.offset
= (bfd_vma
) -1;
1876 h
->plt
.offset
= (bfd_vma
) -1;
1878 /* If this is a weak symbol, and there is a real definition, the
1879 processor independent code will have arranged for us to see the
1880 real definition first, and we can just use the same value. */
1881 if (h
->u
.weakdef
!= NULL
)
1883 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
1884 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
1885 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
1886 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
1890 /* This is a reference to a symbol defined by a dynamic object which
1891 is not a function. */
1893 /* If we are creating a shared library, we must presume that the
1894 only references to the symbol are via the global offset table.
1895 For such cases we need not do anything here; the relocations will
1896 be handled correctly by relocate_section. */
1900 /* If there are no references to this symbol that do not use the
1901 GOT, we don't need to generate a copy reloc. */
1902 if (!h
->non_got_ref
)
1905 /* If -z nocopyreloc was given, we won't generate them either. */
1906 if (info
->nocopyreloc
)
1912 eh
= (struct elf_m32r_link_hash_entry
*) h
;
1913 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
1915 s
= p
->sec
->output_section
;
1916 if (s
!= NULL
&& (s
->flags
& (SEC_READONLY
| SEC_HAS_CONTENTS
)) != 0)
1920 /* If we didn't find any dynamic relocs in sections which needs the
1921 copy reloc, then we'll be keeping the dynamic relocs and avoiding
1931 (*_bfd_error_handler
) (_("dynamic variable `%s' is zero size"),
1932 h
->root
.root
.string
);
1936 /* We must allocate the symbol in our .dynbss section, which will
1937 become part of the .bss section of the executable. There will be
1938 an entry for this symbol in the .dynsym section. The dynamic
1939 object will contain position independent code, so all references
1940 from the dynamic object to this symbol will go through the global
1941 offset table. The dynamic linker will use the .dynsym entry to
1942 determine the address it must put in the global offset table, so
1943 both the dynamic object and the regular object will refer to the
1944 same memory location for the variable. */
1946 htab
= m32r_elf_hash_table (info
);
1948 BFD_ASSERT (s
!= NULL
);
1950 /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1951 to copy the initial value out of the dynamic object and into the
1952 runtime process image. We need to remember the offset into the
1953 .rela.bss section we are going to use. */
1954 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
1958 srel
= htab
->srelbss
;
1959 BFD_ASSERT (srel
!= NULL
);
1960 srel
->size
+= sizeof (Elf32_External_Rela
);
1964 /* We need to figure out the alignment required for this symbol. I
1965 have no idea how ELF linkers handle this. */
1966 power_of_two
= bfd_log2 (h
->size
);
1967 if (power_of_two
> 3)
1970 /* Apply the required alignment. */
1971 s
->size
= BFD_ALIGN (s
->size
, (bfd_size_type
) (1 << power_of_two
));
1972 if (power_of_two
> bfd_get_section_alignment (dynobj
, s
))
1974 if (! bfd_set_section_alignment (dynobj
, s
, power_of_two
))
1978 /* Define the symbol as being at this point in the section. */
1979 h
->root
.u
.def
.section
= s
;
1980 h
->root
.u
.def
.value
= s
->size
;
1982 /* Increment the section size to make room for the symbol. */
1988 /* Allocate space in .plt, .got and associated reloc sections for
1992 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void * inf
)
1994 struct bfd_link_info
*info
;
1995 struct elf_m32r_link_hash_table
*htab
;
1996 struct elf_m32r_link_hash_entry
*eh
;
1997 struct elf_m32r_dyn_relocs
*p
;
1999 if (h
->root
.type
== bfd_link_hash_indirect
)
2002 if (h
->root
.type
== bfd_link_hash_warning
)
2003 /* When warning symbols are created, they **replace** the "real"
2004 entry in the hash table, thus we never get to see the real
2005 symbol in a hash traversal. So look at it now. */
2006 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2008 info
= (struct bfd_link_info
*) inf
;
2009 htab
= m32r_elf_hash_table (info
);
2011 eh
= (struct elf_m32r_link_hash_entry
*) h
;
2013 if (htab
->root
.dynamic_sections_created
2014 && h
->plt
.refcount
> 0)
2016 /* Make sure this symbol is output as a dynamic symbol.
2017 Undefined weak syms won't yet be marked as dynamic. */
2018 if (h
->dynindx
== -1
2019 && !h
->forced_local
)
2021 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2025 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info
->shared
, h
))
2027 asection
*s
= htab
->splt
;
2029 /* If this is the first .plt entry, make room for the special
2032 s
->size
+= PLT_ENTRY_SIZE
;
2034 h
->plt
.offset
= s
->size
;
2036 /* If this symbol is not defined in a regular file, and we are
2037 not generating a shared library, then set the symbol to this
2038 location in the .plt. This is required to make function
2039 pointers compare as equal between the normal executable and
2040 the shared library. */
2044 h
->root
.u
.def
.section
= s
;
2045 h
->root
.u
.def
.value
= h
->plt
.offset
;
2048 /* Make room for this entry. */
2049 s
->size
+= PLT_ENTRY_SIZE
;
2051 /* We also need to make an entry in the .got.plt section, which
2052 will be placed in the .got section by the linker script. */
2053 htab
->sgotplt
->size
+= 4;
2055 /* We also need to make an entry in the .rel.plt section. */
2056 htab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
2060 h
->plt
.offset
= (bfd_vma
) -1;
2066 h
->plt
.offset
= (bfd_vma
) -1;
2070 if (h
->got
.refcount
> 0)
2075 /* Make sure this symbol is output as a dynamic symbol.
2076 Undefined weak syms won't yet be marked as dynamic. */
2077 if (h
->dynindx
== -1
2078 && !h
->forced_local
)
2080 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2086 h
->got
.offset
= s
->size
;
2088 dyn
= htab
->root
.dynamic_sections_created
;
2089 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
))
2090 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2093 h
->got
.offset
= (bfd_vma
) -1;
2095 if (eh
->dyn_relocs
== NULL
)
2098 /* In the shared -Bsymbolic case, discard space allocated for
2099 dynamic pc-relative relocs against symbols which turn out to be
2100 defined in regular objects. For the normal shared case, discard
2101 space for pc-relative relocs that have become local due to symbol
2102 visibility changes. */
2110 struct elf_m32r_dyn_relocs
**pp
;
2112 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
;)
2114 p
->count
-= p
->pc_count
;
2123 /* Also discard relocs on undefined weak syms with non-default
2125 if (eh
->dyn_relocs
!= NULL
2126 && h
->root
.type
== bfd_link_hash_undefweak
)
2128 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
2129 eh
->dyn_relocs
= NULL
;
2131 /* Make sure undefined weak symbols are output as a dynamic
2133 else if (h
->dynindx
== -1
2134 && !h
->forced_local
)
2136 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2143 /* For the non-shared case, discard space for relocs against
2144 symbols which turn out to need copy relocs or are not
2150 || (htab
->root
.dynamic_sections_created
2151 && (h
->root
.type
== bfd_link_hash_undefweak
2152 || h
->root
.type
== bfd_link_hash_undefined
))))
2154 /* Make sure this symbol is output as a dynamic symbol.
2155 Undefined weak syms won't yet be marked as dynamic. */
2156 if (h
->dynindx
== -1
2157 && !h
->forced_local
)
2159 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2163 /* If that succeeded, we know we'll be keeping all the
2165 if (h
->dynindx
!= -1)
2169 eh
->dyn_relocs
= NULL
;
2174 /* Finally, allocate space. */
2175 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2177 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
2178 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
2184 /* Find any dynamic relocs that apply to read-only sections. */
2187 readonly_dynrelocs (struct elf_link_hash_entry
*h
, void * inf
)
2189 struct elf_m32r_link_hash_entry
*eh
;
2190 struct elf_m32r_dyn_relocs
*p
;
2192 if (h
->root
.type
== bfd_link_hash_warning
)
2193 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2195 eh
= (struct elf_m32r_link_hash_entry
*) h
;
2196 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2198 asection
*s
= p
->sec
->output_section
;
2200 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
2202 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
2204 info
->flags
|= DF_TEXTREL
;
2206 /* Not an error, just cut short the traversal. */
2213 /* Set the sizes of the dynamic sections. */
2216 m32r_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2217 struct bfd_link_info
*info
)
2219 struct elf_m32r_link_hash_table
*htab
;
2226 printf ("m32r_elf_size_dynamic_sections()\n");
2229 htab
= m32r_elf_hash_table (info
);
2230 dynobj
= htab
->root
.dynobj
;
2231 BFD_ASSERT (dynobj
!= NULL
);
2233 if (htab
->root
.dynamic_sections_created
)
2235 /* Set the contents of the .interp section to the interpreter. */
2236 if (info
->executable
)
2238 s
= bfd_get_section_by_name (dynobj
, ".interp");
2239 BFD_ASSERT (s
!= NULL
);
2240 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2241 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2245 /* Set up .got offsets for local syms, and space for local dynamic
2247 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
2249 bfd_signed_vma
*local_got
;
2250 bfd_signed_vma
*end_local_got
;
2251 bfd_size_type locsymcount
;
2252 Elf_Internal_Shdr
*symtab_hdr
;
2255 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
2258 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2260 struct elf_m32r_dyn_relocs
*p
;
2262 for (p
= ((struct elf_m32r_dyn_relocs
*)
2263 elf_section_data (s
)->local_dynrel
);
2267 if (! bfd_is_abs_section (p
->sec
)
2268 && bfd_is_abs_section (p
->sec
->output_section
))
2270 /* Input section has been discarded, either because
2271 it is a copy of a linkonce section or due to
2272 linker script /DISCARD/, so we'll be discarding
2275 else if (p
->count
!= 0)
2277 srel
= elf_section_data (p
->sec
)->sreloc
;
2278 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
2279 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2280 info
->flags
|= DF_TEXTREL
;
2285 local_got
= elf_local_got_refcounts (ibfd
);
2289 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
2290 locsymcount
= symtab_hdr
->sh_info
;
2291 end_local_got
= local_got
+ locsymcount
;
2293 srel
= htab
->srelgot
;
2294 for (; local_got
< end_local_got
; ++local_got
)
2298 *local_got
= s
->size
;
2301 srel
->size
+= sizeof (Elf32_External_Rela
);
2304 *local_got
= (bfd_vma
) -1;
2308 /* Allocate global sym .plt and .got entries, and space for global
2309 sym dynamic relocs. */
2310 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, info
);
2312 /* We now have determined the sizes of the various dynamic sections.
2313 Allocate memory for them. */
2315 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
2317 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
2322 || s
== htab
->sgotplt
2323 || s
== htab
->sdynbss
)
2325 /* Strip this section if we don't need it; see the
2328 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, s
), ".rela"))
2330 if (s
->size
!= 0 && s
!= htab
->srelplt
)
2333 /* We use the reloc_count field as a counter if we need
2334 to copy relocs into the output file. */
2338 /* It's not one of our sections, so don't allocate space. */
2343 /* If we don't need this section, strip it from the
2344 output file. This is mostly to handle .rela.bss and
2345 .rela.plt. We must create both sections in
2346 create_dynamic_sections, because they must be created
2347 before the linker maps input sections to output
2348 sections. The linker does that before
2349 adjust_dynamic_symbol is called, and it is that
2350 function which decides whether anything needs to go
2351 into these sections. */
2352 s
->flags
|= SEC_EXCLUDE
;
2356 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
2359 /* Allocate memory for the section contents. We use bfd_zalloc
2360 here in case unused entries are not reclaimed before the
2361 section's contents are written out. This should not happen,
2362 but this way if it does, we get a R_M32R_NONE reloc instead
2364 s
->contents
= bfd_zalloc (dynobj
, s
->size
);
2365 if (s
->contents
== NULL
)
2369 if (htab
->root
.dynamic_sections_created
)
2371 /* Add some entries to the .dynamic section. We fill in the
2372 values later, in m32r_elf_finish_dynamic_sections, but we
2373 must add the entries now so that we get the correct size for
2374 the .dynamic section. The DT_DEBUG entry is filled in by the
2375 dynamic linker and used by the debugger. */
2376 #define add_dynamic_entry(TAG, VAL) \
2377 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2379 if (info
->executable
)
2381 if (! add_dynamic_entry (DT_DEBUG
, 0))
2385 if (htab
->splt
->size
!= 0)
2387 if (! add_dynamic_entry (DT_PLTGOT
, 0)
2388 || ! add_dynamic_entry (DT_PLTRELSZ
, 0)
2389 || ! add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2390 || ! add_dynamic_entry (DT_JMPREL
, 0))
2396 if (! add_dynamic_entry (DT_RELA
, 0)
2397 || ! add_dynamic_entry (DT_RELASZ
, 0)
2398 || ! add_dynamic_entry (DT_RELAENT
,
2399 sizeof (Elf32_External_Rela
)))
2402 /* If any dynamic relocs apply to a read-only section,
2403 then we need a DT_TEXTREL entry. */
2404 if ((info
->flags
& DF_TEXTREL
) == 0)
2405 elf_link_hash_traverse (&htab
->root
, readonly_dynrelocs
,
2408 if ((info
->flags
& DF_TEXTREL
) != 0)
2410 if (! add_dynamic_entry (DT_TEXTREL
, 0))
2415 #undef add_dynamic_entry
2420 /* Relocate an M32R/D ELF section.
2421 There is some attempt to make this function usable for many architectures,
2422 both for RELA and REL type relocs, if only to serve as a learning tool.
2424 The RELOCATE_SECTION function is called by the new ELF backend linker
2425 to handle the relocations for a section.
2427 The relocs are always passed as Rela structures; if the section
2428 actually uses Rel structures, the r_addend field will always be
2431 This function is responsible for adjust the section contents as
2432 necessary, and (if using Rela relocs and generating a
2433 relocatable output file) adjusting the reloc addend as
2436 This function does not have to worry about setting the reloc
2437 address or the reloc symbol index.
2439 LOCAL_SYMS is a pointer to the swapped in local symbols.
2441 LOCAL_SECTIONS is an array giving the section in the input file
2442 corresponding to the st_shndx field of each local symbol.
2444 The global hash table entry for the global symbols can be found
2445 via elf_sym_hashes (input_bfd).
2447 When generating relocatable output, this function must handle
2448 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2449 going to be the section symbol corresponding to the output
2450 section, which means that the addend must be adjusted
2454 m32r_elf_relocate_section (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2455 struct bfd_link_info
*info
,
2457 asection
*input_section
,
2459 Elf_Internal_Rela
*relocs
,
2460 Elf_Internal_Sym
*local_syms
,
2461 asection
**local_sections
)
2463 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
2464 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
2465 Elf_Internal_Rela
*rel
, *relend
;
2466 /* Assume success. */
2467 bfd_boolean ret
= TRUE
;
2469 struct elf_m32r_link_hash_table
*htab
= m32r_elf_hash_table (info
);
2471 bfd_vma
*local_got_offsets
;
2472 asection
*sgot
, *splt
, *sreloc
;
2473 bfd_vma high_address
= bfd_get_section_limit (input_bfd
, input_section
);
2475 dynobj
= htab
->root
.dynobj
;
2476 local_got_offsets
= elf_local_got_offsets (input_bfd
);
2483 relend
= relocs
+ input_section
->reloc_count
;
2484 for (; rel
< relend
; rel
++)
2487 reloc_howto_type
*howto
;
2488 unsigned long r_symndx
;
2489 struct elf_link_hash_entry
*h
;
2490 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2491 ensure it's zero (we use REL relocs, not RELA). Therefore this
2492 should be assigning zero to `addend', but for clarity we use
2494 bfd_vma addend
= rel
->r_addend
;
2495 bfd_vma offset
= rel
->r_offset
;
2497 Elf_Internal_Sym
*sym
;
2499 const char *sym_name
;
2500 bfd_reloc_status_type r
;
2501 const char *errmsg
= NULL
;
2502 bfd_boolean use_rel
= FALSE
;
2505 r_type
= ELF32_R_TYPE (rel
->r_info
);
2506 if (r_type
< 0 || r_type
>= (int) R_M32R_max
)
2508 (*_bfd_error_handler
) (_("%B: unknown relocation type %d"),
2511 bfd_set_error (bfd_error_bad_value
);
2516 if ( r_type
== R_M32R_GNU_VTENTRY
2517 || r_type
== R_M32R_GNU_VTINHERIT
2518 || r_type
== R_M32R_NONE
2519 || r_type
== R_M32R_RELA_GNU_VTENTRY
2520 || r_type
== R_M32R_RELA_GNU_VTINHERIT
)
2523 if (r_type
<= R_M32R_GNU_VTENTRY
)
2526 howto
= m32r_elf_howto_table
+ r_type
;
2527 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2533 if (r_symndx
< symtab_hdr
->sh_info
)
2536 sym
= local_syms
+ r_symndx
;
2537 sec
= local_sections
[r_symndx
];
2538 sym_name
= "<local symbol>";
2542 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
2543 addend
= rel
->r_addend
;
2547 relocation
= (sec
->output_section
->vma
2548 + sec
->output_offset
2554 /* External symbol. */
2557 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2558 while (h
->root
.type
== bfd_link_hash_indirect
2559 || h
->root
.type
== bfd_link_hash_warning
)
2560 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2561 sym_name
= h
->root
.root
.string
;
2563 if (h
->root
.type
== bfd_link_hash_defined
2564 || h
->root
.type
== bfd_link_hash_defweak
)
2567 sec
= h
->root
.u
.def
.section
;
2569 dyn
= htab
->root
.dynamic_sections_created
;
2570 sec
= h
->root
.u
.def
.section
;
2571 if (r_type
== R_M32R_GOTPC24
2572 || (r_type
== R_M32R_GOTPC_HI_ULO
2573 || r_type
== R_M32R_GOTPC_HI_SLO
2574 || r_type
== R_M32R_GOTPC_LO
)
2575 || (r_type
== R_M32R_26_PLTREL
2576 && h
->plt
.offset
!= (bfd_vma
) -1)
2577 || ((r_type
== R_M32R_GOT24
2578 || r_type
== R_M32R_GOT16_HI_ULO
2579 || r_type
== R_M32R_GOT16_HI_SLO
2580 || r_type
== R_M32R_GOT16_LO
)
2581 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
2584 || (! info
->symbolic
&& h
->dynindx
!= -1)
2585 || !h
->def_regular
))
2587 && ((! info
->symbolic
&& h
->dynindx
!= -1)
2589 && (((r_type
== R_M32R_16_RELA
2590 || r_type
== R_M32R_32_RELA
2591 || r_type
== R_M32R_24_RELA
2592 || r_type
== R_M32R_HI16_ULO_RELA
2593 || r_type
== R_M32R_HI16_SLO_RELA
2594 || r_type
== R_M32R_LO16_RELA
)
2595 && !h
->forced_local
)
2596 || r_type
== R_M32R_REL32
2597 || r_type
== R_M32R_10_PCREL_RELA
2598 || r_type
== R_M32R_18_PCREL_RELA
2599 || r_type
== R_M32R_26_PCREL_RELA
)
2600 && ((input_section
->flags
& SEC_ALLOC
) != 0
2601 /* DWARF will emit R_M32R_16(24,32) relocations
2602 in its sections against symbols defined
2603 externally in shared libraries. We can't do
2604 anything with them here. */
2605 || ((input_section
->flags
& SEC_DEBUGGING
) != 0
2606 && h
->def_dynamic
))))
2608 /* In these cases, we don't need the relocation
2609 value. We check specially because in some
2610 obscure cases sec->output_section will be NULL. */
2612 else if (sec
->output_section
!= NULL
)
2613 relocation
= (h
->root
.u
.def
.value
2614 + sec
->output_section
->vma
2615 + sec
->output_offset
);
2616 else if (!info
->relocatable
)
2618 (*_bfd_error_handler
)
2619 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2622 (long) rel
->r_offset
,
2624 h
->root
.root
.string
);
2627 else if (h
->root
.type
== bfd_link_hash_undefweak
)
2629 else if (info
->unresolved_syms_in_objects
== RM_IGNORE
2630 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
2632 else if (!info
->relocatable
)
2634 if (! ((*info
->callbacks
->undefined_symbol
)
2635 (info
, h
->root
.root
.string
, input_bfd
,
2636 input_section
, offset
,
2637 (info
->unresolved_syms_in_objects
== RM_GENERATE_ERROR
2638 || ELF_ST_VISIBILITY (h
->other
)))))
2643 if (sec
!= NULL
&& elf_discarded_section (sec
))
2645 /* For relocs against symbols from removed linkonce sections,
2646 or sections discarded by a linker script, we just want the
2647 section contents zeroed. Avoid any special processing. */
2648 _bfd_clear_contents (howto
, input_bfd
, contents
+ rel
->r_offset
);
2654 if (info
->relocatable
&& !use_rel
)
2656 /* This is a relocatable link. We don't have to change
2657 anything, unless the reloc is against a section symbol,
2658 in which case we have to adjust according to where the
2659 section symbol winds up in the output section. */
2660 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
2661 rel
->r_addend
+= sec
->output_offset
;
2665 if (info
->relocatable
&& use_rel
)
2667 /* This is a relocatable link. We don't have to change
2668 anything, unless the reloc is against a section symbol,
2669 in which case we have to adjust according to where the
2670 section symbol winds up in the output section. */
2671 if (sym
== NULL
|| ELF_ST_TYPE (sym
->st_info
) != STT_SECTION
)
2674 addend
+= sec
->output_offset
;
2676 /* If partial_inplace, we need to store any additional addend
2677 back in the section. */
2678 if (! howto
->partial_inplace
)
2680 /* ??? Here is a nice place to call a special_function
2682 if (r_type
!= R_M32R_HI16_SLO
&& r_type
!= R_M32R_HI16_ULO
)
2683 r
= _bfd_relocate_contents (howto
, input_bfd
,
2684 addend
, contents
+ offset
);
2687 Elf_Internal_Rela
*lorel
;
2689 /* We allow an arbitrary number of HI16 relocs before the
2690 LO16 reloc. This permits gcc to emit the HI and LO relocs
2692 for (lorel
= rel
+ 1;
2694 && (ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_SLO
2695 || ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_ULO
));
2699 && ELF32_R_TYPE (lorel
->r_info
) == R_M32R_LO16
)
2701 m32r_elf_relocate_hi16 (input_bfd
, r_type
, rel
, lorel
,
2706 r
= _bfd_relocate_contents (howto
, input_bfd
,
2707 addend
, contents
+ offset
);
2712 /* Sanity check the address. */
2713 if (offset
> high_address
)
2715 r
= bfd_reloc_outofrange
;
2719 switch ((int) r_type
)
2722 /* Relocation is relative to the start of the global offset
2723 table (for ld24 rx, #uimm24). eg access at label+addend
2725 ld24 rx. #label@GOTOFF + addend
2728 BFD_ASSERT (sgot
!= NULL
);
2730 relocation
= -(relocation
- sgot
->output_section
->vma
);
2731 rel
->r_addend
= -rel
->r_addend
;
2734 case R_M32R_GOTOFF_HI_ULO
:
2735 case R_M32R_GOTOFF_HI_SLO
:
2736 case R_M32R_GOTOFF_LO
:
2737 BFD_ASSERT (sgot
!= NULL
);
2739 relocation
-= sgot
->output_section
->vma
;
2741 if ((r_type
== R_M32R_GOTOFF_HI_SLO
)
2742 && ((relocation
+ rel
->r_addend
) & 0x8000))
2743 rel
->r_addend
+= 0x10000;
2746 case R_M32R_GOTPC24
:
2747 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2748 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2750 relocation
= sgot
->output_section
->vma
;
2753 case R_M32R_GOTPC_HI_ULO
:
2754 case R_M32R_GOTPC_HI_SLO
:
2755 case R_M32R_GOTPC_LO
:
2757 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2759 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2760 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2763 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2764 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2766 relocation
= sgot
->output_section
->vma
;
2767 relocation
-= (input_section
->output_section
->vma
2768 + input_section
->output_offset
2770 if ((r_type
== R_M32R_GOTPC_HI_SLO
)
2771 && ((relocation
+ rel
->r_addend
) & 0x8000))
2772 rel
->r_addend
+= 0x10000;
2776 case R_M32R_GOT16_HI_ULO
:
2777 case R_M32R_GOT16_HI_SLO
:
2778 case R_M32R_GOT16_LO
:
2781 /* Relocation is to the entry for this symbol in the global
2783 BFD_ASSERT (sgot
!= NULL
);
2790 off
= h
->got
.offset
;
2791 BFD_ASSERT (off
!= (bfd_vma
) -1);
2793 dyn
= htab
->root
.dynamic_sections_created
;
2794 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
2801 /* This is actually a static link, or it is a
2802 -Bsymbolic link and the symbol is defined
2803 locally, or the symbol was forced to be local
2804 because of a version file. We must initialize
2805 this entry in the global offset table. Since the
2806 offset must always be a multiple of 4, we use the
2807 least significant bit to record whether we have
2808 initialized it already.
2810 When doing a dynamic link, we create a .rela.got
2811 relocation entry to initialize the value. This
2812 is done in the finish_dynamic_symbol routine. */
2817 bfd_put_32 (output_bfd
, relocation
,
2818 sgot
->contents
+ off
);
2823 relocation
= sgot
->output_offset
+ off
;
2830 BFD_ASSERT (local_got_offsets
!= NULL
2831 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
2833 off
= local_got_offsets
[r_symndx
];
2835 /* The offset must always be a multiple of 4. We use
2836 the least significant bit to record whether we have
2837 already processed this entry. */
2842 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
2847 Elf_Internal_Rela outrel
;
2849 /* We need to generate a R_M32R_RELATIVE reloc
2850 for the dynamic linker. */
2851 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
2852 BFD_ASSERT (srelgot
!= NULL
);
2854 outrel
.r_offset
= (sgot
->output_section
->vma
2855 + sgot
->output_offset
2857 outrel
.r_info
= ELF32_R_INFO (0, R_M32R_RELATIVE
);
2858 outrel
.r_addend
= relocation
;
2859 loc
= srelgot
->contents
;
2860 loc
+= srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
2861 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
2862 ++srelgot
->reloc_count
;
2865 local_got_offsets
[r_symndx
] |= 1;
2868 relocation
= sgot
->output_offset
+ off
;
2870 if ((r_type
== R_M32R_GOT16_HI_SLO
)
2871 && ((relocation
+ rel
->r_addend
) & 0x8000))
2872 rel
->r_addend
+= 0x10000;
2876 case R_M32R_26_PLTREL
:
2877 /* Relocation is to the entry for this symbol in the
2878 procedure linkage table. */
2880 /* The native assembler will generate a 26_PLTREL reloc
2881 for a local symbol if you assemble a call from one
2882 section to another when using -K pic. */
2886 if (h
->forced_local
)
2889 if (h
->plt
.offset
== (bfd_vma
) -1)
2890 /* We didn't make a PLT entry for this symbol. This
2891 happens when statically linking PIC code, or when
2892 using -Bsymbolic. */
2895 relocation
= (splt
->output_section
->vma
2896 + splt
->output_offset
2900 case R_M32R_HI16_SLO_RELA
:
2901 if ((relocation
+ rel
->r_addend
) & 0x8000)
2902 rel
->r_addend
+= 0x10000;
2905 case R_M32R_16_RELA
:
2906 case R_M32R_24_RELA
:
2907 case R_M32R_32_RELA
:
2909 case R_M32R_10_PCREL_RELA
:
2910 case R_M32R_18_PCREL_RELA
:
2911 case R_M32R_26_PCREL_RELA
:
2912 case R_M32R_HI16_ULO_RELA
:
2913 case R_M32R_LO16_RELA
:
2916 && (input_section
->flags
& SEC_ALLOC
) != 0
2917 && (( r_type
!= R_M32R_10_PCREL_RELA
2918 && r_type
!= R_M32R_18_PCREL_RELA
2919 && r_type
!= R_M32R_26_PCREL_RELA
2920 && r_type
!= R_M32R_REL32
)
2923 && (! info
->symbolic
2924 || !h
->def_regular
))))
2926 Elf_Internal_Rela outrel
;
2927 bfd_boolean skip
, relocate
;
2930 /* When generating a shared object, these relocations
2931 are copied into the output file to be resolved at run
2937 name
= (bfd_elf_string_from_elf_section
2939 elf_elfheader (input_bfd
)->e_shstrndx
,
2940 elf_section_data (input_section
)->rel_hdr
.sh_name
));
2944 BFD_ASSERT (CONST_STRNEQ (name
, ".rela")
2945 && strcmp (bfd_get_section_name (input_bfd
,
2949 sreloc
= bfd_get_section_by_name (dynobj
, name
);
2950 BFD_ASSERT (sreloc
!= NULL
);
2956 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
2960 if (outrel
.r_offset
== (bfd_vma
) -1)
2962 else if (outrel
.r_offset
== (bfd_vma
) -2)
2963 skip
= relocate
= TRUE
;
2964 outrel
.r_offset
+= (input_section
->output_section
->vma
2965 + input_section
->output_offset
);
2968 memset (&outrel
, 0, sizeof outrel
);
2969 else if ( r_type
== R_M32R_10_PCREL_RELA
2970 || r_type
== R_M32R_18_PCREL_RELA
2971 || r_type
== R_M32R_26_PCREL_RELA
2972 || r_type
== R_M32R_REL32
)
2974 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
2975 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
2976 outrel
.r_addend
= rel
->r_addend
;
2980 /* h->dynindx may be -1 if this symbol was marked to
2983 || ((info
->symbolic
|| h
->dynindx
== -1)
2987 outrel
.r_info
= ELF32_R_INFO (0, R_M32R_RELATIVE
);
2988 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2992 BFD_ASSERT (h
->dynindx
!= -1);
2993 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
2994 outrel
.r_addend
= relocation
+ rel
->r_addend
;
2998 loc
= sreloc
->contents
;
2999 loc
+= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
3000 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,loc
);
3001 ++sreloc
->reloc_count
;
3003 /* If this reloc is against an external symbol, we do
3004 not want to fiddle with the addend. Otherwise, we
3005 need to include the symbol value so that it becomes
3006 an addend for the dynamic reloc. */
3011 else if (r_type
!= R_M32R_10_PCREL_RELA
)
3015 case (int) R_M32R_10_PCREL
:
3016 r
= m32r_elf_do_10_pcrel_reloc (input_bfd
, howto
, input_section
,
3018 sec
, relocation
, addend
);
3021 case (int) R_M32R_HI16_SLO
:
3022 case (int) R_M32R_HI16_ULO
:
3024 Elf_Internal_Rela
*lorel
;
3026 /* We allow an arbitrary number of HI16 relocs before the
3027 LO16 reloc. This permits gcc to emit the HI and LO relocs
3029 for (lorel
= rel
+ 1;
3031 && (ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_SLO
3032 || ELF32_R_TYPE (lorel
->r_info
) == R_M32R_HI16_ULO
));
3036 && ELF32_R_TYPE (lorel
->r_info
) == R_M32R_LO16
)
3038 m32r_elf_relocate_hi16 (input_bfd
, r_type
, rel
, lorel
,
3039 contents
, relocation
+ addend
);
3043 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3045 relocation
, addend
);
3050 case (int) R_M32R_SDA16_RELA
:
3051 case (int) R_M32R_SDA16
:
3055 BFD_ASSERT (sec
!= NULL
);
3056 name
= bfd_get_section_name (abfd
, sec
);
3058 if ( strcmp (name
, ".sdata") == 0
3059 || strcmp (name
, ".sbss") == 0
3060 || strcmp (name
, ".scommon") == 0)
3063 bfd
*out_bfd
= sec
->output_section
->owner
;
3065 r
= m32r_elf_final_sda_base (out_bfd
, info
,
3068 if (r
!= bfd_reloc_ok
)
3074 /* At this point `relocation' contains the object's
3076 relocation
-= sda_base
;
3077 /* Now it contains the offset from _SDA_BASE_. */
3081 (*_bfd_error_handler
)
3082 (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3086 m32r_elf_howto_table
[(int) r_type
].name
);
3087 /*bfd_set_error (bfd_error_bad_value); ??? why? */
3094 default : /* OLD_M32R_RELOC */
3096 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3098 relocation
, addend
);
3102 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3103 contents
, rel
->r_offset
,
3104 relocation
, rel
->r_addend
);
3110 if (r
!= bfd_reloc_ok
)
3112 /* FIXME: This should be generic enough to go in a utility. */
3116 name
= h
->root
.root
.string
;
3119 name
= (bfd_elf_string_from_elf_section
3120 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
3121 if (name
== NULL
|| *name
== '\0')
3122 name
= bfd_section_name (input_bfd
, sec
);
3130 case bfd_reloc_overflow
:
3131 if (! ((*info
->callbacks
->reloc_overflow
)
3132 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
3133 (bfd_vma
) 0, input_bfd
, input_section
, offset
)))
3137 case bfd_reloc_undefined
:
3138 if (! ((*info
->callbacks
->undefined_symbol
)
3139 (info
, name
, input_bfd
, input_section
,
3144 case bfd_reloc_outofrange
:
3145 errmsg
= _("internal error: out of range error");
3148 case bfd_reloc_notsupported
:
3149 errmsg
= _("internal error: unsupported relocation error");
3152 case bfd_reloc_dangerous
:
3153 errmsg
= _("internal error: dangerous error");
3157 errmsg
= _("internal error: unknown error");
3161 if (!((*info
->callbacks
->warning
)
3162 (info
, errmsg
, name
, input_bfd
, input_section
,
3173 /* Finish up dynamic symbol handling. We set the contents of various
3174 dynamic sections here. */
3177 m32r_elf_finish_dynamic_symbol (bfd
*output_bfd
,
3178 struct bfd_link_info
*info
,
3179 struct elf_link_hash_entry
*h
,
3180 Elf_Internal_Sym
*sym
)
3182 struct elf_m32r_link_hash_table
*htab
;
3187 printf ("m32r_elf_finish_dynamic_symbol()\n");
3190 htab
= m32r_elf_hash_table (info
);
3191 dynobj
= htab
->root
.dynobj
;
3193 if (h
->plt
.offset
!= (bfd_vma
) -1)
3201 Elf_Internal_Rela rela
;
3203 /* This symbol has an entry in the procedure linkage table. Set
3206 BFD_ASSERT (h
->dynindx
!= -1);
3209 sgot
= htab
->sgotplt
;
3210 srela
= htab
->srelplt
;
3211 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
3213 /* Get the index in the procedure linkage table which
3214 corresponds to this symbol. This is the index of this symbol
3215 in all the symbols for which we are making plt entries. The
3216 first entry in the procedure linkage table is reserved. */
3217 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
3219 /* Get the offset into the .got table of the entry that
3220 corresponds to this function. Each .got entry is 4 bytes.
3221 The first three are reserved. */
3222 got_offset
= (plt_index
+ 3) * 4;
3224 /* Fill in the entry in the procedure linkage table. */
3227 bfd_put_32 (output_bfd
,
3229 + (((sgot
->output_section
->vma
3230 + sgot
->output_offset
3231 + got_offset
) >> 16) & 0xffff)),
3232 splt
->contents
+ h
->plt
.offset
);
3233 bfd_put_32 (output_bfd
,
3235 + ((sgot
->output_section
->vma
3236 + sgot
->output_offset
3237 + got_offset
) & 0xffff)),
3238 splt
->contents
+ h
->plt
.offset
+ 4);
3239 bfd_put_32 (output_bfd
, PLT_ENTRY_WORD2
,
3240 splt
->contents
+ h
->plt
.offset
+ 8);
3241 bfd_put_32 (output_bfd
,
3243 + plt_index
* sizeof (Elf32_External_Rela
)),
3244 splt
->contents
+ h
->plt
.offset
+ 12);
3245 bfd_put_32 (output_bfd
,
3247 + (((unsigned int) ((- (h
->plt
.offset
+ 16)) >> 2)) & 0xffffff)),
3248 splt
->contents
+ h
->plt
.offset
+ 16);
3252 bfd_put_32 (output_bfd
,
3253 PLT_ENTRY_WORD0
+ got_offset
,
3254 splt
->contents
+ h
->plt
.offset
);
3255 bfd_put_32 (output_bfd
, PLT_ENTRY_WORD1
,
3256 splt
->contents
+ h
->plt
.offset
+ 4);
3257 bfd_put_32 (output_bfd
, PLT_ENTRY_WORD2
,
3258 splt
->contents
+ h
->plt
.offset
+ 8);
3259 bfd_put_32 (output_bfd
,
3261 + plt_index
* sizeof (Elf32_External_Rela
)),
3262 splt
->contents
+ h
->plt
.offset
+ 12);
3263 bfd_put_32 (output_bfd
,
3265 + (((unsigned int) ((- (h
->plt
.offset
+ 16)) >> 2)) & 0xffffff)),
3266 splt
->contents
+ h
->plt
.offset
+ 16);
3269 /* Fill in the entry in the global offset table. */
3270 bfd_put_32 (output_bfd
,
3271 (splt
->output_section
->vma
3272 + splt
->output_offset
3274 + 12), /* same offset */
3275 sgot
->contents
+ got_offset
);
3277 /* Fill in the entry in the .rela.plt section. */
3278 rela
.r_offset
= (sgot
->output_section
->vma
3279 + sgot
->output_offset
3281 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_M32R_JMP_SLOT
);
3283 loc
= srela
->contents
;
3284 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
3285 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3287 if (!h
->def_regular
)
3289 /* Mark the symbol as undefined, rather than as defined in
3290 the .plt section. Leave the value alone. */
3291 sym
->st_shndx
= SHN_UNDEF
;
3295 if (h
->got
.offset
!= (bfd_vma
) -1)
3299 Elf_Internal_Rela rela
;
3301 /* This symbol has an entry in the global offset table. Set it
3305 srela
= htab
->srelgot
;
3306 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
3308 rela
.r_offset
= (sgot
->output_section
->vma
3309 + sgot
->output_offset
3310 + (h
->got
.offset
&~ 1));
3312 /* If this is a -Bsymbolic link, and the symbol is defined
3313 locally, we just want to emit a RELATIVE reloc. Likewise if
3314 the symbol was forced to be local because of a version file.
3315 The entry in the global offset table will already have been
3316 initialized in the relocate_section function. */
3323 rela
.r_info
= ELF32_R_INFO (0, R_M32R_RELATIVE
);
3324 rela
.r_addend
= (h
->root
.u
.def
.value
3325 + h
->root
.u
.def
.section
->output_section
->vma
3326 + h
->root
.u
.def
.section
->output_offset
);
3330 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
3331 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ h
->got
.offset
);
3332 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_M32R_GLOB_DAT
);
3336 loc
= srela
->contents
;
3337 loc
+= srela
->reloc_count
* sizeof (Elf32_External_Rela
);
3338 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3339 ++srela
->reloc_count
;
3345 Elf_Internal_Rela rela
;
3347 /* This symbols needs a copy reloc. Set it up. */
3349 BFD_ASSERT (h
->dynindx
!= -1
3350 && (h
->root
.type
== bfd_link_hash_defined
3351 || h
->root
.type
== bfd_link_hash_defweak
));
3353 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
,
3355 BFD_ASSERT (s
!= NULL
);
3357 rela
.r_offset
= (h
->root
.u
.def
.value
3358 + h
->root
.u
.def
.section
->output_section
->vma
3359 + h
->root
.u
.def
.section
->output_offset
);
3360 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_M32R_COPY
);
3363 loc
+= s
->reloc_count
* sizeof (Elf32_External_Rela
);
3364 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
3368 /* Mark some specially defined symbols as absolute. */
3369 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
3370 || h
== htab
->root
.hgot
)
3371 sym
->st_shndx
= SHN_ABS
;
3377 /* Finish up the dynamic sections. */
3380 m32r_elf_finish_dynamic_sections (bfd
*output_bfd
,
3381 struct bfd_link_info
*info
)
3383 struct elf_m32r_link_hash_table
*htab
;
3389 printf ("m32r_elf_finish_dynamic_sections()\n");
3392 htab
= m32r_elf_hash_table (info
);
3393 dynobj
= htab
->root
.dynobj
;
3395 sgot
= htab
->sgotplt
;
3396 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
3398 if (htab
->root
.dynamic_sections_created
)
3401 Elf32_External_Dyn
*dyncon
, *dynconend
;
3403 BFD_ASSERT (sgot
!= NULL
&& sdyn
!= NULL
);
3405 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
3406 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
3408 for (; dyncon
< dynconend
; dyncon
++)
3410 Elf_Internal_Dyn dyn
;
3414 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3423 s
= htab
->sgot
->output_section
;
3427 s
= htab
->srelplt
->output_section
;
3429 BFD_ASSERT (s
!= NULL
);
3430 dyn
.d_un
.d_ptr
= s
->vma
;
3431 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3435 s
= htab
->srelplt
->output_section
;
3436 BFD_ASSERT (s
!= NULL
);
3437 dyn
.d_un
.d_val
= s
->size
;
3438 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3442 /* My reading of the SVR4 ABI indicates that the
3443 procedure linkage table relocs (DT_JMPREL) should be
3444 included in the overall relocs (DT_RELA). This is
3445 what Solaris does. However, UnixWare can not handle
3446 that case. Therefore, we override the DT_RELASZ entry
3447 here to make it not include the JMPREL relocs. Since
3448 the linker script arranges for .rela.plt to follow all
3449 other relocation sections, we don't have to worry
3450 about changing the DT_RELA entry. */
3451 if (htab
->srelplt
!= NULL
)
3453 s
= htab
->srelplt
->output_section
;
3454 dyn
.d_un
.d_val
-= s
->size
;
3456 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
3461 /* Fill in the first entry in the procedure linkage table. */
3463 if (splt
&& splt
->size
> 0)
3467 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD0
, splt
->contents
);
3468 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD1
, splt
->contents
+ 4);
3469 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD2
, splt
->contents
+ 8);
3470 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD3
, splt
->contents
+ 12);
3471 bfd_put_32 (output_bfd
, PLT0_PIC_ENTRY_WORD4
, splt
->contents
+ 16);
3476 /* addr = .got + 4 */
3477 addr
= sgot
->output_section
->vma
+ sgot
->output_offset
+ 4;
3478 bfd_put_32 (output_bfd
,
3479 PLT0_ENTRY_WORD0
| ((addr
>> 16) & 0xffff),
3481 bfd_put_32 (output_bfd
,
3482 PLT0_ENTRY_WORD1
| (addr
& 0xffff),
3483 splt
->contents
+ 4);
3484 bfd_put_32 (output_bfd
, PLT0_ENTRY_WORD2
, splt
->contents
+ 8);
3485 bfd_put_32 (output_bfd
, PLT0_ENTRY_WORD3
, splt
->contents
+ 12);
3486 bfd_put_32 (output_bfd
, PLT0_ENTRY_WORD4
, splt
->contents
+ 16);
3489 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
3494 /* Fill in the first three entries in the global offset table. */
3495 if (sgot
&& sgot
->size
> 0)
3498 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
3500 bfd_put_32 (output_bfd
,
3501 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
3503 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
3504 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
3506 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
3513 /* Set the right machine number. */
3516 m32r_elf_object_p (bfd
*abfd
)
3518 switch (elf_elfheader (abfd
)->e_flags
& EF_M32R_ARCH
)
3521 case E_M32R_ARCH
: (void) bfd_default_set_arch_mach (abfd
, bfd_arch_m32r
, bfd_mach_m32r
); break;
3522 case E_M32RX_ARCH
: (void) bfd_default_set_arch_mach (abfd
, bfd_arch_m32r
, bfd_mach_m32rx
); break;
3523 case E_M32R2_ARCH
: (void) bfd_default_set_arch_mach (abfd
, bfd_arch_m32r
, bfd_mach_m32r2
); break;
3528 /* Store the machine number in the flags field. */
3531 m32r_elf_final_write_processing (bfd
*abfd
,
3532 bfd_boolean linker ATTRIBUTE_UNUSED
)
3536 switch (bfd_get_mach (abfd
))
3539 case bfd_mach_m32r
: val
= E_M32R_ARCH
; break;
3540 case bfd_mach_m32rx
: val
= E_M32RX_ARCH
; break;
3541 case bfd_mach_m32r2
: val
= E_M32R2_ARCH
; break;
3544 elf_elfheader (abfd
)->e_flags
&=~ EF_M32R_ARCH
;
3545 elf_elfheader (abfd
)->e_flags
|= val
;
3548 /* Function to keep M32R specific file flags. */
3551 m32r_elf_set_private_flags (bfd
*abfd
, flagword flags
)
3553 BFD_ASSERT (!elf_flags_init (abfd
)
3554 || elf_elfheader (abfd
)->e_flags
== flags
);
3556 elf_elfheader (abfd
)->e_flags
= flags
;
3557 elf_flags_init (abfd
) = TRUE
;
3561 /* Merge backend specific data from an object file to the output
3562 object file when linking. */
3565 m32r_elf_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
3570 if ( bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
3571 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
3574 in_flags
= elf_elfheader (ibfd
)->e_flags
;
3575 out_flags
= elf_elfheader (obfd
)->e_flags
;
3577 if (! elf_flags_init (obfd
))
3579 /* If the input is the default architecture then do not
3580 bother setting the flags for the output architecture,
3581 instead allow future merges to do this. If no future
3582 merges ever set these flags then they will retain their
3583 unitialised values, which surprise surprise, correspond
3584 to the default values. */
3585 if (bfd_get_arch_info (ibfd
)->the_default
)
3588 elf_flags_init (obfd
) = TRUE
;
3589 elf_elfheader (obfd
)->e_flags
= in_flags
;
3591 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
3592 && bfd_get_arch_info (obfd
)->the_default
)
3593 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
3594 bfd_get_mach (ibfd
));
3599 /* Check flag compatibility. */
3600 if (in_flags
== out_flags
)
3603 if ((in_flags
& EF_M32R_ARCH
) != (out_flags
& EF_M32R_ARCH
))
3605 if ( ((in_flags
& EF_M32R_ARCH
) != E_M32R_ARCH
)
3606 || ((out_flags
& EF_M32R_ARCH
) == E_M32R_ARCH
)
3607 || ((in_flags
& EF_M32R_ARCH
) == E_M32R2_ARCH
))
3609 (*_bfd_error_handler
)
3610 (_("%B: Instruction set mismatch with previous modules"), ibfd
);
3612 bfd_set_error (bfd_error_bad_value
);
3620 /* Display the flags field. */
3623 m32r_elf_print_private_bfd_data (bfd
*abfd
, void * ptr
)
3625 FILE * file
= (FILE *) ptr
;
3627 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
3629 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
3631 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
3633 switch (elf_elfheader (abfd
)->e_flags
& EF_M32R_ARCH
)
3636 case E_M32R_ARCH
: fprintf (file
, _(": m32r instructions")); break;
3637 case E_M32RX_ARCH
: fprintf (file
, _(": m32rx instructions")); break;
3638 case E_M32R2_ARCH
: fprintf (file
, _(": m32r2 instructions")); break;
3647 m32r_elf_gc_mark_hook (asection
*sec
,
3648 struct bfd_link_info
*info
,
3649 Elf_Internal_Rela
*rel
,
3650 struct elf_link_hash_entry
*h
,
3651 Elf_Internal_Sym
*sym
)
3654 switch (ELF32_R_TYPE (rel
->r_info
))
3656 case R_M32R_GNU_VTINHERIT
:
3657 case R_M32R_GNU_VTENTRY
:
3658 case R_M32R_RELA_GNU_VTINHERIT
:
3659 case R_M32R_RELA_GNU_VTENTRY
:
3663 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
3667 m32r_elf_gc_sweep_hook (bfd
*abfd ATTRIBUTE_UNUSED
,
3668 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3669 asection
*sec ATTRIBUTE_UNUSED
,
3670 const Elf_Internal_Rela
*relocs ATTRIBUTE_UNUSED
)
3672 /* Update the got entry reference counts for the section being removed. */
3673 Elf_Internal_Shdr
*symtab_hdr
;
3674 struct elf_link_hash_entry
**sym_hashes
;
3675 bfd_signed_vma
*local_got_refcounts
;
3676 const Elf_Internal_Rela
*rel
, *relend
;
3678 elf_section_data (sec
)->local_dynrel
= NULL
;
3680 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3681 sym_hashes
= elf_sym_hashes (abfd
);
3682 local_got_refcounts
= elf_local_got_refcounts (abfd
);
3684 relend
= relocs
+ sec
->reloc_count
;
3685 for (rel
= relocs
; rel
< relend
; rel
++)
3687 unsigned long r_symndx
;
3688 struct elf_link_hash_entry
*h
= NULL
;
3690 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3691 if (r_symndx
>= symtab_hdr
->sh_info
)
3693 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3694 while (h
->root
.type
== bfd_link_hash_indirect
3695 || h
->root
.type
== bfd_link_hash_warning
)
3696 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3699 switch (ELF32_R_TYPE (rel
->r_info
))
3701 case R_M32R_GOT16_HI_ULO
:
3702 case R_M32R_GOT16_HI_SLO
:
3703 case R_M32R_GOT16_LO
:
3705 case R_M32R_GOTOFF_HI_ULO
:
3706 case R_M32R_GOTOFF_HI_SLO
:
3707 case R_M32R_GOTOFF_LO
:
3709 case R_M32R_GOTPC_HI_ULO
:
3710 case R_M32R_GOTPC_HI_SLO
:
3711 case R_M32R_GOTPC_LO
:
3712 case R_M32R_GOTPC24
:
3715 if (h
->got
.refcount
> 0)
3720 if (local_got_refcounts
&& local_got_refcounts
[r_symndx
] > 0)
3721 local_got_refcounts
[r_symndx
]--;
3725 case R_M32R_16_RELA
:
3726 case R_M32R_24_RELA
:
3727 case R_M32R_32_RELA
:
3729 case R_M32R_HI16_ULO_RELA
:
3730 case R_M32R_HI16_SLO_RELA
:
3731 case R_M32R_LO16_RELA
:
3732 case R_M32R_SDA16_RELA
:
3733 case R_M32R_10_PCREL_RELA
:
3734 case R_M32R_18_PCREL_RELA
:
3735 case R_M32R_26_PCREL_RELA
:
3738 struct elf_m32r_link_hash_entry
*eh
;
3739 struct elf_m32r_dyn_relocs
**pp
;
3740 struct elf_m32r_dyn_relocs
*p
;
3742 if (!info
->shared
&& h
->plt
.refcount
> 0)
3743 h
->plt
.refcount
-= 1;
3745 eh
= (struct elf_m32r_link_hash_entry
*) h
;
3747 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
3750 if ( ELF32_R_TYPE (rel
->r_info
) == R_M32R_26_PCREL_RELA
3751 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_18_PCREL_RELA
3752 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_10_PCREL_RELA
3753 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_REL32
)
3763 case R_M32R_26_PLTREL
:
3766 if (h
->plt
.refcount
> 0)
3779 /* Look through the relocs for a section during the first phase.
3780 Since we don't do .gots or .plts, we just need to consider the
3781 virtual table relocs for gc. */
3784 m32r_elf_check_relocs (bfd
*abfd
,
3785 struct bfd_link_info
*info
,
3787 const Elf_Internal_Rela
*relocs
)
3789 Elf_Internal_Shdr
*symtab_hdr
;
3790 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
3791 const Elf_Internal_Rela
*rel
;
3792 const Elf_Internal_Rela
*rel_end
;
3793 struct elf_m32r_link_hash_table
*htab
;
3795 bfd_vma
*local_got_offsets
;
3796 asection
*sgot
, *srelgot
, *sreloc
;
3798 if (info
->relocatable
)
3801 sgot
= srelgot
= sreloc
= NULL
;
3803 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3804 sym_hashes
= elf_sym_hashes (abfd
);
3805 sym_hashes_end
= sym_hashes
+ symtab_hdr
->sh_size
/sizeof (Elf32_External_Sym
);
3806 if (!elf_bad_symtab (abfd
))
3807 sym_hashes_end
-= symtab_hdr
->sh_info
;
3809 htab
= m32r_elf_hash_table (info
);
3810 dynobj
= htab
->root
.dynobj
;
3811 local_got_offsets
= elf_local_got_offsets (abfd
);
3813 rel_end
= relocs
+ sec
->reloc_count
;
3814 for (rel
= relocs
; rel
< rel_end
; rel
++)
3817 struct elf_link_hash_entry
*h
;
3818 unsigned long r_symndx
;
3820 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3821 r_type
= ELF32_R_TYPE (rel
->r_info
);
3822 if (r_symndx
< symtab_hdr
->sh_info
)
3826 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3827 while (h
->root
.type
== bfd_link_hash_indirect
3828 || h
->root
.type
== bfd_link_hash_warning
)
3829 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3832 /* Some relocs require a global offset table. */
3833 if (htab
->sgot
== NULL
)
3837 case R_M32R_GOT16_HI_ULO
:
3838 case R_M32R_GOT16_HI_SLO
:
3840 case R_M32R_GOTOFF_HI_ULO
:
3841 case R_M32R_GOTOFF_HI_SLO
:
3842 case R_M32R_GOTOFF_LO
:
3843 case R_M32R_GOT16_LO
:
3844 case R_M32R_GOTPC24
:
3845 case R_M32R_GOTPC_HI_ULO
:
3846 case R_M32R_GOTPC_HI_SLO
:
3847 case R_M32R_GOTPC_LO
:
3850 htab
->root
.dynobj
= dynobj
= abfd
;
3851 if (! create_got_section (dynobj
, info
))
3862 case R_M32R_GOT16_HI_ULO
:
3863 case R_M32R_GOT16_HI_SLO
:
3864 case R_M32R_GOT16_LO
:
3868 h
->got
.refcount
+= 1;
3871 bfd_signed_vma
*local_got_refcounts
;
3873 /* This is a global offset table entry for a local
3875 local_got_refcounts
= elf_local_got_refcounts (abfd
);
3876 if (local_got_refcounts
== NULL
)
3880 size
= symtab_hdr
->sh_info
;
3881 size
*= sizeof (bfd_signed_vma
);
3882 local_got_refcounts
= bfd_zalloc (abfd
, size
);
3883 if (local_got_refcounts
== NULL
)
3885 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
3887 local_got_refcounts
[r_symndx
] += 1;
3891 case R_M32R_26_PLTREL
:
3892 /* This symbol requires a procedure linkage table entry. We
3893 actually build the entry in adjust_dynamic_symbol,
3894 because this might be a case of linking PIC code without
3895 linking in any dynamic objects, in which case we don't
3896 need to generate a procedure linkage table after all. */
3898 /* If this is a local symbol, we resolve it directly without
3899 creating a procedure linkage table entry. */
3903 if (h
->forced_local
)
3907 h
->plt
.refcount
+= 1;
3910 case R_M32R_16_RELA
:
3911 case R_M32R_24_RELA
:
3912 case R_M32R_32_RELA
:
3914 case R_M32R_HI16_ULO_RELA
:
3915 case R_M32R_HI16_SLO_RELA
:
3916 case R_M32R_LO16_RELA
:
3917 case R_M32R_SDA16_RELA
:
3918 case R_M32R_10_PCREL_RELA
:
3919 case R_M32R_18_PCREL_RELA
:
3920 case R_M32R_26_PCREL_RELA
:
3922 if (h
!= NULL
&& !info
->shared
)
3925 h
->plt
.refcount
+= 1;
3928 /* If we are creating a shared library, and this is a reloc
3929 against a global symbol, or a non PC relative reloc
3930 against a local symbol, then we need to copy the reloc
3931 into the shared library. However, if we are linking with
3932 -Bsymbolic, we do not need to copy a reloc against a
3933 global symbol which is defined in an object we are
3934 including in the link (i.e., DEF_REGULAR is set). At
3935 this point we have not seen all the input files, so it is
3936 possible that DEF_REGULAR is not set now but will be set
3937 later (it is never cleared). We account for that
3938 possibility below by storing information in the
3939 dyn_relocs field of the hash table entry. A similar
3940 situation occurs when creating shared libraries and symbol
3941 visibility changes render the symbol local.
3943 If on the other hand, we are creating an executable, we
3944 may need to keep relocations for symbols satisfied by a
3945 dynamic library if we manage to avoid copy relocs for the
3948 && (sec
->flags
& SEC_ALLOC
) != 0
3949 && (( r_type
!= R_M32R_26_PCREL_RELA
3950 && r_type
!= R_M32R_18_PCREL_RELA
3951 && r_type
!= R_M32R_10_PCREL_RELA
3952 && r_type
!= R_M32R_REL32
)
3954 && (! info
->symbolic
3955 || h
->root
.type
== bfd_link_hash_defweak
3956 || !h
->def_regular
))))
3958 && (sec
->flags
& SEC_ALLOC
) != 0
3960 && (h
->root
.type
== bfd_link_hash_defweak
3961 || !h
->def_regular
)))
3963 struct elf_m32r_dyn_relocs
*p
;
3964 struct elf_m32r_dyn_relocs
**head
;
3967 htab
->root
.dynobj
= dynobj
= abfd
;
3969 /* When creating a shared object, we must copy these
3970 relocs into the output file. We create a reloc
3971 section in dynobj and make room for the reloc. */
3976 name
= (bfd_elf_string_from_elf_section
3978 elf_elfheader (abfd
)->e_shstrndx
,
3979 elf_section_data (sec
)->rel_hdr
.sh_name
));
3983 BFD_ASSERT (CONST_STRNEQ (name
, ".rela")
3984 && strcmp (bfd_get_section_name (abfd
, sec
),
3987 sreloc
= bfd_get_section_by_name (dynobj
, name
);
3992 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
3993 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
3994 if ((sec
->flags
& SEC_ALLOC
) != 0)
3995 flags
|= SEC_ALLOC
| SEC_LOAD
;
3996 sreloc
= bfd_make_section_with_flags (dynobj
,
4000 || ! bfd_set_section_alignment (dynobj
, sreloc
, 2))
4003 elf_section_data (sec
)->sreloc
= sreloc
;
4006 /* If this is a global symbol, we count the number of
4007 relocations we need for this symbol. */
4009 head
= &((struct elf_m32r_link_hash_entry
*) h
)->dyn_relocs
;
4015 /* Track dynamic relocs needed for local syms too. */
4016 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
4021 vpp
= &elf_section_data (s
)->local_dynrel
;
4022 head
= (struct elf_m32r_dyn_relocs
**) vpp
;
4026 if (p
== NULL
|| p
->sec
!= sec
)
4028 bfd_size_type amt
= sizeof (*p
);
4030 p
= bfd_alloc (dynobj
, amt
);
4041 if ( ELF32_R_TYPE (rel
->r_info
) == R_M32R_26_PCREL_RELA
4042 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_18_PCREL_RELA
4043 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_10_PCREL_RELA
4044 || ELF32_R_TYPE (rel
->r_info
) == R_M32R_REL32
)
4049 /* This relocation describes the C++ object vtable hierarchy.
4050 Reconstruct it for later use during GC. */
4051 case R_M32R_RELA_GNU_VTINHERIT
:
4052 case R_M32R_GNU_VTINHERIT
:
4053 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
4057 /* This relocation describes which C++ vtable entries are actually
4058 used. Record for later use during GC. */
4059 case R_M32R_GNU_VTENTRY
:
4060 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
4063 case R_M32R_RELA_GNU_VTENTRY
:
4064 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
4073 static const struct bfd_elf_special_section m32r_elf_special_sections
[] =
4075 { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
4076 { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
4077 { NULL
, 0, 0, 0, 0 }
4081 m32r_elf_fake_sections (bfd
*abfd
,
4082 Elf_Internal_Shdr
*hdr ATTRIBUTE_UNUSED
,
4087 name
= bfd_get_section_name (abfd
, sec
);
4089 /* The generic elf_fake_sections will set up REL_HDR using the
4090 default kind of relocations. But, we may actually need both
4091 kinds of relocations, so we set up the second header here.
4093 This is not necessary for the O32 ABI since that only uses Elf32_Rel
4094 relocations (cf. System V ABI, MIPS RISC Processor Supplement,
4095 3rd Edition, p. 4-17). It breaks the IRIX 5/6 32-bit ld, since one
4096 of the resulting empty .rela.<section> sections starts with
4097 sh_offset == object size, and ld doesn't allow that. While the check
4098 is arguably bogus for empty or SHT_NOBITS sections, it can easily be
4099 avoided by not emitting those useless sections in the first place. */
4100 if ((sec
->flags
& SEC_RELOC
) != 0)
4102 struct bfd_elf_section_data
*esd
;
4103 bfd_size_type amt
= sizeof (Elf_Internal_Shdr
);
4105 esd
= elf_section_data (sec
);
4106 BFD_ASSERT (esd
->rel_hdr2
== NULL
);
4107 esd
->rel_hdr2
= bfd_zalloc (abfd
, amt
);
4110 _bfd_elf_init_reloc_shdr (abfd
, esd
->rel_hdr2
, sec
,
4117 static enum elf_reloc_type_class
4118 m32r_elf_reloc_type_class (const Elf_Internal_Rela
*rela
)
4120 switch ((int) ELF32_R_TYPE (rela
->r_info
))
4122 case R_M32R_RELATIVE
: return reloc_class_relative
;
4123 case R_M32R_JMP_SLOT
: return reloc_class_plt
;
4124 case R_M32R_COPY
: return reloc_class_copy
;
4125 default: return reloc_class_normal
;
4129 #define ELF_ARCH bfd_arch_m32r
4130 #define ELF_MACHINE_CODE EM_M32R
4131 #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
4132 #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
4134 #define TARGET_BIG_SYM bfd_elf32_m32r_vec
4135 #define TARGET_BIG_NAME "elf32-m32r"
4136 #define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4137 #define TARGET_LITTLE_NAME "elf32-m32rle"
4139 #define elf_info_to_howto m32r_info_to_howto
4140 #define elf_info_to_howto_rel m32r_info_to_howto_rel
4141 #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4142 #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4143 #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4144 #define elf_backend_relocate_section m32r_elf_relocate_section
4145 #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4146 #define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4147 #define elf_backend_check_relocs m32r_elf_check_relocs
4149 #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4150 #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4151 #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4152 #define elf_backend_omit_section_dynsym \
4153 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4154 #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4155 #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4156 #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4157 #define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4158 #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4160 #define elf_backend_can_gc_sections 1
4162 #define elf_backend_rela_normal 1
4164 #define elf_backend_can_refcount 1
4165 #define elf_backend_want_got_plt 1
4166 #define elf_backend_plt_readonly 1
4167 #define elf_backend_want_plt_sym 0
4168 #define elf_backend_got_header_size 12
4170 #define elf_backend_may_use_rel_p 1
4171 #ifdef USE_M32R_OLD_RELOC
4172 #define elf_backend_default_use_rela_p 0
4173 #define elf_backend_may_use_rela_p 0
4175 #define elf_backend_default_use_rela_p 1
4176 #define elf_backend_may_use_rela_p 1
4177 #define elf_backend_fake_sections m32r_elf_fake_sections
4180 #define elf_backend_object_p m32r_elf_object_p
4181 #define elf_backend_final_write_processing m32r_elf_final_write_processing
4182 #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4183 #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4184 #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
4185 #define elf_backend_special_sections m32r_elf_special_sections
4187 #include "elf32-target.h"
4189 #undef ELF_MAXPAGESIZE
4190 #define ELF_MAXPAGESIZE 0x1000
4192 #undef TARGET_BIG_SYM
4193 #define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
4194 #undef TARGET_BIG_NAME
4195 #define TARGET_BIG_NAME "elf32-m32r-linux"
4196 #undef TARGET_LITTLE_SYM
4197 #define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
4198 #undef TARGET_LITTLE_NAME
4199 #define TARGET_LITTLE_NAME "elf32-m32rle-linux"
4201 #define elf32_bed elf32_m32r_lin_bed
4203 #include "elf32-target.h"