1 /* Renesas / SuperH SH specific support for 32-bit ELF
2 Copyright (C) 1996-2020 Free Software Foundation, Inc.
3 Contributed by Ian Lance Taylor, Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
27 #include "elf-vxworks.h"
30 #include "libiberty.h"
31 #include "../opcodes/sh-opc.h"
33 /* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
34 #define OCTETS_PER_BYTE(ABFD, SEC) 1
36 static bfd_reloc_status_type sh_elf_reloc
37 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
38 static bfd_reloc_status_type sh_elf_ignore_reloc
39 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
40 static bfd_boolean sh_elf_relax_delete_bytes
41 (bfd
*, asection
*, bfd_vma
, int);
42 static bfd_boolean sh_elf_align_loads
43 (bfd
*, asection
*, Elf_Internal_Rela
*, bfd_byte
*, bfd_boolean
*);
44 static bfd_boolean sh_elf_swap_insns
45 (bfd
*, asection
*, void *, bfd_byte
*, bfd_vma
);
46 static int sh_elf_optimized_tls_reloc
47 (struct bfd_link_info
*, int, int);
48 static bfd_vma dtpoff_base
49 (struct bfd_link_info
*);
51 (struct bfd_link_info
*, bfd_vma
);
53 /* The name of the dynamic interpreter. This is put in the .interp
56 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
58 /* FDPIC binaries have a default 128K stack. */
59 #define DEFAULT_STACK_SIZE 0x20000
61 #define MINUS_ONE ((bfd_vma) 0 - 1)
63 /* Decide whether a reference to a symbol can be resolved locally or
64 not. If the symbol is protected, we want the local address, but
65 its function descriptor must be assigned by the dynamic linker. */
66 #define SYMBOL_FUNCDESC_LOCAL(INFO, H) \
67 (SYMBOL_REFERENCES_LOCAL (INFO, H) \
68 || ! elf_hash_table (INFO)->dynamic_sections_created)
70 #define SH_PARTIAL32 TRUE
71 #define SH_SRC_MASK32 0xffffffff
72 #define SH_ELF_RELOC sh_elf_reloc
73 static reloc_howto_type sh_elf_howto_table
[] =
75 #include "elf32-sh-relocs.h"
78 #define SH_PARTIAL32 FALSE
79 #define SH_SRC_MASK32 0
80 #define SH_ELF_RELOC bfd_elf_generic_reloc
81 static reloc_howto_type sh_vxworks_howto_table
[] =
83 #include "elf32-sh-relocs.h"
86 /* Return true if OUTPUT_BFD is a VxWorks object. */
89 vxworks_object_p (bfd
*abfd ATTRIBUTE_UNUSED
)
91 #if !defined SH_TARGET_ALREADY_DEFINED
92 extern const bfd_target sh_elf32_vxworks_le_vec
;
93 extern const bfd_target sh_elf32_vxworks_vec
;
95 return (abfd
->xvec
== &sh_elf32_vxworks_le_vec
96 || abfd
->xvec
== &sh_elf32_vxworks_vec
);
102 /* Return true if OUTPUT_BFD is an FDPIC object. */
105 fdpic_object_p (bfd
*abfd ATTRIBUTE_UNUSED
)
107 #if !defined SH_TARGET_ALREADY_DEFINED
108 extern const bfd_target sh_elf32_fdpic_le_vec
;
109 extern const bfd_target sh_elf32_fdpic_be_vec
;
111 return (abfd
->xvec
== &sh_elf32_fdpic_le_vec
112 || abfd
->xvec
== &sh_elf32_fdpic_be_vec
);
118 /* Return the howto table for ABFD. */
120 static reloc_howto_type
*
121 get_howto_table (bfd
*abfd
)
123 if (vxworks_object_p (abfd
))
124 return sh_vxworks_howto_table
;
125 return sh_elf_howto_table
;
128 static bfd_reloc_status_type
129 sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED
, bfd
*input_bfd
,
130 asection
*input_section
, bfd_byte
*contents
,
131 bfd_vma addr
, asection
*symbol_section
,
132 bfd_vma start
, bfd_vma end
)
134 static bfd_vma last_addr
;
135 static asection
*last_symbol_section
;
136 bfd_byte
*start_ptr
, *ptr
, *last_ptr
;
141 /* Sanity check the address. */
142 if (addr
> bfd_get_section_limit (input_bfd
, input_section
))
143 return bfd_reloc_outofrange
;
145 /* We require the start and end relocations to be processed consecutively -
146 although we allow then to be processed forwards or backwards. */
150 last_symbol_section
= symbol_section
;
153 if (last_addr
!= addr
)
157 if (! symbol_section
|| last_symbol_section
!= symbol_section
|| end
< start
)
158 return bfd_reloc_outofrange
;
160 /* Get the symbol_section contents. */
161 if (symbol_section
!= input_section
)
163 if (elf_section_data (symbol_section
)->this_hdr
.contents
!= NULL
)
164 contents
= elf_section_data (symbol_section
)->this_hdr
.contents
;
167 if (!bfd_malloc_and_get_section (input_bfd
, symbol_section
,
171 return bfd_reloc_outofrange
;
175 #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
176 start_ptr
= contents
+ start
;
177 for (cum_diff
= -6, ptr
= contents
+ end
; cum_diff
< 0 && ptr
> start_ptr
;)
179 for (last_ptr
= ptr
, ptr
-= 4; ptr
>= start_ptr
&& IS_PPI (ptr
);)
182 diff
= (last_ptr
- ptr
) >> 1;
183 cum_diff
+= diff
& 1;
186 /* Calculate the start / end values to load into rs / re minus four -
187 so that will cancel out the four we would otherwise have to add to
188 addr to get the value to subtract in order to get relative addressing. */
192 end
= (ptr
+ cum_diff
* 2) - contents
;
196 bfd_vma start0
= start
- 4;
198 while (start0
&& IS_PPI (contents
+ start0
))
200 start0
= start
- 2 - ((start
- start0
) & 2);
201 start
= start0
- cum_diff
- 2;
205 if (elf_section_data (symbol_section
)->this_hdr
.contents
!= contents
)
208 insn
= bfd_get_16 (input_bfd
, contents
+ addr
);
210 x
= (insn
& 0x200 ? end
: start
) - addr
;
211 if (input_section
!= symbol_section
)
212 x
+= ((symbol_section
->output_section
->vma
+ symbol_section
->output_offset
)
213 - (input_section
->output_section
->vma
214 + input_section
->output_offset
));
216 if (x
< -128 || x
> 127)
217 return bfd_reloc_overflow
;
219 x
= (insn
& ~0xff) | (x
& 0xff);
220 bfd_put_16 (input_bfd
, (bfd_vma
) x
, contents
+ addr
);
225 /* This function is used for normal relocs. This used to be like the COFF
226 function, and is almost certainly incorrect for other ELF targets. */
228 static bfd_reloc_status_type
229 sh_elf_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol_in
,
230 void *data
, asection
*input_section
, bfd
*output_bfd
,
231 char **error_message ATTRIBUTE_UNUSED
)
235 enum elf_sh_reloc_type r_type
;
236 bfd_vma addr
= reloc_entry
->address
;
237 bfd_size_type octets
= addr
* OCTETS_PER_BYTE (abfd
, input_section
);
238 bfd_byte
*hit_data
= (bfd_byte
*) data
+ octets
;
240 r_type
= (enum elf_sh_reloc_type
) reloc_entry
->howto
->type
;
242 if (output_bfd
!= NULL
)
244 /* Partial linking--do nothing. */
245 reloc_entry
->address
+= input_section
->output_offset
;
249 /* Almost all relocs have to do with relaxing. If any work must be
250 done for them, it has been done in sh_relax_section. */
251 if (r_type
== R_SH_IND12W
&& (symbol_in
->flags
& BSF_LOCAL
) != 0)
254 if (symbol_in
!= NULL
255 && bfd_is_und_section (symbol_in
->section
))
256 return bfd_reloc_undefined
;
258 /* PR 17512: file: 9891ca98. */
259 if (octets
+ bfd_get_reloc_size (reloc_entry
->howto
)
260 > bfd_get_section_limit_octets (abfd
, input_section
))
261 return bfd_reloc_outofrange
;
263 if (bfd_is_com_section (symbol_in
->section
))
266 sym_value
= (symbol_in
->value
+
267 symbol_in
->section
->output_section
->vma
+
268 symbol_in
->section
->output_offset
);
273 insn
= bfd_get_32 (abfd
, hit_data
);
274 insn
+= sym_value
+ reloc_entry
->addend
;
275 bfd_put_32 (abfd
, insn
, hit_data
);
278 insn
= bfd_get_16 (abfd
, hit_data
);
279 sym_value
+= reloc_entry
->addend
;
280 sym_value
-= (input_section
->output_section
->vma
281 + input_section
->output_offset
284 sym_value
+= (((insn
& 0xfff) ^ 0x800) - 0x800) << 1;
285 insn
= (insn
& 0xf000) | ((sym_value
>> 1) & 0xfff);
286 bfd_put_16 (abfd
, insn
, hit_data
);
287 if (sym_value
+ 0x1000 >= 0x2000 || (sym_value
& 1) != 0)
288 return bfd_reloc_overflow
;
298 /* This function is used for relocs which are only used for relaxing,
299 which the linker should otherwise ignore. */
301 static bfd_reloc_status_type
302 sh_elf_ignore_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
303 asymbol
*symbol ATTRIBUTE_UNUSED
,
304 void *data ATTRIBUTE_UNUSED
, asection
*input_section
,
306 char **error_message ATTRIBUTE_UNUSED
)
308 if (output_bfd
!= NULL
)
309 reloc_entry
->address
+= input_section
->output_offset
;
313 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
317 bfd_reloc_code_real_type bfd_reloc_val
;
318 unsigned char elf_reloc_val
;
321 /* An array mapping BFD reloc codes to SH ELF relocs. */
323 static const struct elf_reloc_map sh_reloc_map
[] =
325 { BFD_RELOC_NONE
, R_SH_NONE
},
326 { BFD_RELOC_32
, R_SH_DIR32
},
327 { BFD_RELOC_16
, R_SH_DIR16
},
328 { BFD_RELOC_8
, R_SH_DIR8
},
329 { BFD_RELOC_CTOR
, R_SH_DIR32
},
330 { BFD_RELOC_32_PCREL
, R_SH_REL32
},
331 { BFD_RELOC_SH_PCDISP8BY2
, R_SH_DIR8WPN
},
332 { BFD_RELOC_SH_PCDISP12BY2
, R_SH_IND12W
},
333 { BFD_RELOC_SH_PCRELIMM8BY2
, R_SH_DIR8WPZ
},
334 { BFD_RELOC_SH_PCRELIMM8BY4
, R_SH_DIR8WPL
},
335 { BFD_RELOC_8_PCREL
, R_SH_SWITCH8
},
336 { BFD_RELOC_SH_SWITCH16
, R_SH_SWITCH16
},
337 { BFD_RELOC_SH_SWITCH32
, R_SH_SWITCH32
},
338 { BFD_RELOC_SH_USES
, R_SH_USES
},
339 { BFD_RELOC_SH_COUNT
, R_SH_COUNT
},
340 { BFD_RELOC_SH_ALIGN
, R_SH_ALIGN
},
341 { BFD_RELOC_SH_CODE
, R_SH_CODE
},
342 { BFD_RELOC_SH_DATA
, R_SH_DATA
},
343 { BFD_RELOC_SH_LABEL
, R_SH_LABEL
},
344 { BFD_RELOC_VTABLE_INHERIT
, R_SH_GNU_VTINHERIT
},
345 { BFD_RELOC_VTABLE_ENTRY
, R_SH_GNU_VTENTRY
},
346 { BFD_RELOC_SH_LOOP_START
, R_SH_LOOP_START
},
347 { BFD_RELOC_SH_LOOP_END
, R_SH_LOOP_END
},
348 { BFD_RELOC_SH_TLS_GD_32
, R_SH_TLS_GD_32
},
349 { BFD_RELOC_SH_TLS_LD_32
, R_SH_TLS_LD_32
},
350 { BFD_RELOC_SH_TLS_LDO_32
, R_SH_TLS_LDO_32
},
351 { BFD_RELOC_SH_TLS_IE_32
, R_SH_TLS_IE_32
},
352 { BFD_RELOC_SH_TLS_LE_32
, R_SH_TLS_LE_32
},
353 { BFD_RELOC_SH_TLS_DTPMOD32
, R_SH_TLS_DTPMOD32
},
354 { BFD_RELOC_SH_TLS_DTPOFF32
, R_SH_TLS_DTPOFF32
},
355 { BFD_RELOC_SH_TLS_TPOFF32
, R_SH_TLS_TPOFF32
},
356 { BFD_RELOC_32_GOT_PCREL
, R_SH_GOT32
},
357 { BFD_RELOC_32_PLT_PCREL
, R_SH_PLT32
},
358 { BFD_RELOC_SH_COPY
, R_SH_COPY
},
359 { BFD_RELOC_SH_GLOB_DAT
, R_SH_GLOB_DAT
},
360 { BFD_RELOC_SH_JMP_SLOT
, R_SH_JMP_SLOT
},
361 { BFD_RELOC_SH_RELATIVE
, R_SH_RELATIVE
},
362 { BFD_RELOC_32_GOTOFF
, R_SH_GOTOFF
},
363 { BFD_RELOC_SH_GOTPC
, R_SH_GOTPC
},
364 { BFD_RELOC_SH_GOTPLT32
, R_SH_GOTPLT32
},
365 { BFD_RELOC_SH_GOT20
, R_SH_GOT20
},
366 { BFD_RELOC_SH_GOTOFF20
, R_SH_GOTOFF20
},
367 { BFD_RELOC_SH_GOTFUNCDESC
, R_SH_GOTFUNCDESC
},
368 { BFD_RELOC_SH_GOTFUNCDESC20
, R_SH_GOTFUNCDESC20
},
369 { BFD_RELOC_SH_GOTOFFFUNCDESC
, R_SH_GOTOFFFUNCDESC
},
370 { BFD_RELOC_SH_GOTOFFFUNCDESC20
, R_SH_GOTOFFFUNCDESC20
},
371 { BFD_RELOC_SH_FUNCDESC
, R_SH_FUNCDESC
},
374 /* Given a BFD reloc code, return the howto structure for the
375 corresponding SH ELF reloc. */
377 static reloc_howto_type
*
378 sh_elf_reloc_type_lookup (bfd
*abfd
, bfd_reloc_code_real_type code
)
382 for (i
= 0; i
< sizeof (sh_reloc_map
) / sizeof (struct elf_reloc_map
); i
++)
384 if (sh_reloc_map
[i
].bfd_reloc_val
== code
)
385 return get_howto_table (abfd
) + (int) sh_reloc_map
[i
].elf_reloc_val
;
391 static reloc_howto_type
*
392 sh_elf_reloc_name_lookup (bfd
*abfd
, const char *r_name
)
396 if (vxworks_object_p (abfd
))
399 i
< (sizeof (sh_vxworks_howto_table
)
400 / sizeof (sh_vxworks_howto_table
[0]));
402 if (sh_vxworks_howto_table
[i
].name
!= NULL
403 && strcasecmp (sh_vxworks_howto_table
[i
].name
, r_name
) == 0)
404 return &sh_vxworks_howto_table
[i
];
409 i
< (sizeof (sh_elf_howto_table
)
410 / sizeof (sh_elf_howto_table
[0]));
412 if (sh_elf_howto_table
[i
].name
!= NULL
413 && strcasecmp (sh_elf_howto_table
[i
].name
, r_name
) == 0)
414 return &sh_elf_howto_table
[i
];
420 /* Given an ELF reloc, fill in the howto field of a relent. */
423 sh_elf_info_to_howto (bfd
*abfd
, arelent
*cache_ptr
, Elf_Internal_Rela
*dst
)
427 r
= ELF32_R_TYPE (dst
->r_info
);
430 || (r
>= R_SH_FIRST_INVALID_RELOC
&& r
<= R_SH_LAST_INVALID_RELOC
)
431 || (r
>= R_SH_FIRST_INVALID_RELOC_2
&& r
<= R_SH_LAST_INVALID_RELOC_2
)
432 || (r
>= R_SH_FIRST_INVALID_RELOC_3
&& r
<= R_SH_LAST_INVALID_RELOC_3
)
433 || (r
>= R_SH_FIRST_INVALID_RELOC_4
&& r
<= R_SH_LAST_INVALID_RELOC_4
)
434 || (r
>= R_SH_FIRST_INVALID_RELOC_5
&& r
<= R_SH_LAST_INVALID_RELOC_5
)
435 || (r
>= R_SH_FIRST_INVALID_RELOC_6
&& r
<= R_SH_LAST_INVALID_RELOC_6
))
437 /* xgettext:c-format */
438 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
440 bfd_set_error (bfd_error_bad_value
);
444 cache_ptr
->howto
= get_howto_table (abfd
) + r
;
448 /* This function handles relaxing for SH ELF. See the corresponding
449 function in coff-sh.c for a description of what this does. FIXME:
450 There is a lot of duplication here between this code and the COFF
451 specific code. The format of relocs and symbols is wound deeply
452 into this code, but it would still be better if the duplication
453 could be eliminated somehow. Note in particular that although both
454 functions use symbols like R_SH_CODE, those symbols have different
455 values; in coff-sh.c they come from include/coff/sh.h, whereas here
456 they come from enum elf_sh_reloc_type in include/elf/sh.h. */
459 sh_elf_relax_section (bfd
*abfd
, asection
*sec
,
460 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
462 Elf_Internal_Shdr
*symtab_hdr
;
463 Elf_Internal_Rela
*internal_relocs
;
464 bfd_boolean have_code
;
465 Elf_Internal_Rela
*irel
, *irelend
;
466 bfd_byte
*contents
= NULL
;
467 Elf_Internal_Sym
*isymbuf
= NULL
;
471 if (bfd_link_relocatable (link_info
)
472 || (sec
->flags
& SEC_RELOC
) == 0
473 || sec
->reloc_count
== 0)
476 symtab_hdr
= &elf_symtab_hdr (abfd
);
478 internal_relocs
= (_bfd_elf_link_read_relocs
479 (abfd
, sec
, NULL
, (Elf_Internal_Rela
*) NULL
,
480 link_info
->keep_memory
));
481 if (internal_relocs
== NULL
)
486 irelend
= internal_relocs
+ sec
->reloc_count
;
487 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
489 bfd_vma laddr
, paddr
, symval
;
491 Elf_Internal_Rela
*irelfn
, *irelscan
, *irelcount
;
494 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_CODE
)
497 if (ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_USES
)
500 /* Get the section contents. */
501 if (contents
== NULL
)
503 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
504 contents
= elf_section_data (sec
)->this_hdr
.contents
;
507 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
512 /* The r_addend field of the R_SH_USES reloc will point us to
513 the register load. The 4 is because the r_addend field is
514 computed as though it were a jump offset, which are based
515 from 4 bytes after the jump instruction. */
516 laddr
= irel
->r_offset
+ 4 + irel
->r_addend
;
517 if (laddr
>= sec
->size
)
519 /* xgettext:c-format */
521 (_("%pB: %#" PRIx64
": warning: bad R_SH_USES offset"),
522 abfd
, (uint64_t) irel
->r_offset
);
525 insn
= bfd_get_16 (abfd
, contents
+ laddr
);
527 /* If the instruction is not mov.l NN,rN, we don't know what to
529 if ((insn
& 0xf000) != 0xd000)
532 /* xgettext:c-format */
533 (_("%pB: %#" PRIx64
": warning: "
534 "R_SH_USES points to unrecognized insn 0x%x"),
535 abfd
, (uint64_t) irel
->r_offset
, insn
);
539 /* Get the address from which the register is being loaded. The
540 displacement in the mov.l instruction is quadrupled. It is a
541 displacement from four bytes after the movl instruction, but,
542 before adding in the PC address, two least significant bits
543 of the PC are cleared. We assume that the section is aligned
544 on a four byte boundary. */
547 paddr
+= (laddr
+ 4) &~ (bfd_vma
) 3;
548 if (paddr
>= sec
->size
)
551 /* xgettext:c-format */
552 (_("%pB: %#" PRIx64
": warning: bad R_SH_USES load offset"),
553 abfd
, (uint64_t) irel
->r_offset
);
557 /* Get the reloc for the address from which the register is
558 being loaded. This reloc will tell us which function is
559 actually being called. */
560 for (irelfn
= internal_relocs
; irelfn
< irelend
; irelfn
++)
561 if (irelfn
->r_offset
== paddr
562 && ELF32_R_TYPE (irelfn
->r_info
) == (int) R_SH_DIR32
)
564 if (irelfn
>= irelend
)
567 /* xgettext:c-format */
568 (_("%pB: %#" PRIx64
": warning: could not find expected reloc"),
569 abfd
, (uint64_t) paddr
);
573 /* Read this BFD's symbols if we haven't done so already. */
574 if (isymbuf
== NULL
&& symtab_hdr
->sh_info
!= 0)
576 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
578 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
579 symtab_hdr
->sh_info
, 0,
585 /* Get the value of the symbol referred to by the reloc. */
586 if (ELF32_R_SYM (irelfn
->r_info
) < symtab_hdr
->sh_info
)
588 /* A local symbol. */
589 Elf_Internal_Sym
*isym
;
591 isym
= isymbuf
+ ELF32_R_SYM (irelfn
->r_info
);
593 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd
, sec
))
596 /* xgettext:c-format */
597 (_("%pB: %#" PRIx64
": warning: symbol in unexpected section"),
598 abfd
, (uint64_t) paddr
);
602 symval
= (isym
->st_value
603 + sec
->output_section
->vma
604 + sec
->output_offset
);
609 struct elf_link_hash_entry
*h
;
611 indx
= ELF32_R_SYM (irelfn
->r_info
) - symtab_hdr
->sh_info
;
612 h
= elf_sym_hashes (abfd
)[indx
];
613 BFD_ASSERT (h
!= NULL
);
614 if (h
->root
.type
!= bfd_link_hash_defined
615 && h
->root
.type
!= bfd_link_hash_defweak
)
617 /* This appears to be a reference to an undefined
618 symbol. Just ignore it--it will be caught by the
619 regular reloc processing. */
623 symval
= (h
->root
.u
.def
.value
624 + h
->root
.u
.def
.section
->output_section
->vma
625 + h
->root
.u
.def
.section
->output_offset
);
628 if (get_howto_table (abfd
)[R_SH_DIR32
].partial_inplace
)
629 symval
+= bfd_get_32 (abfd
, contents
+ paddr
);
631 symval
+= irelfn
->r_addend
;
633 /* See if this function call can be shortened. */
636 + sec
->output_section
->vma
639 /* A branch to an address beyond ours might be increased by an
640 .align that doesn't move when bytes behind us are deleted.
641 So, we add some slop in this calculation to allow for
643 if (foff
< -0x1000 || foff
>= 0x1000 - 8)
645 /* After all that work, we can't shorten this function call. */
649 /* Shorten the function call. */
651 /* For simplicity of coding, we are going to modify the section
652 contents, the section relocs, and the BFD symbol table. We
653 must tell the rest of the code not to free up this
654 information. It would be possible to instead create a table
655 of changes which have to be made, as is done in coff-mips.c;
656 that would be more work, but would require less memory when
657 the linker is run. */
659 elf_section_data (sec
)->relocs
= internal_relocs
;
660 elf_section_data (sec
)->this_hdr
.contents
= contents
;
661 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
663 /* Replace the jmp/jsr with a bra/bsr. */
665 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
666 replace the jmp/jsr with a bra/bsr. */
667 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_SH_IND12W
);
668 /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
669 here, but that only checks if the symbol is an external symbol,
670 not if the symbol is in a different section. Besides, we need
671 a consistent meaning for the relocation, so we just assume here that
672 the value of the symbol is not available. */
674 /* We can't fully resolve this yet, because the external
675 symbol value may be changed by future relaxing. We let
676 the final link phase handle it. */
677 if (bfd_get_16 (abfd
, contents
+ irel
->r_offset
) & 0x0020)
678 bfd_put_16 (abfd
, (bfd_vma
) 0xa000, contents
+ irel
->r_offset
);
680 bfd_put_16 (abfd
, (bfd_vma
) 0xb000, contents
+ irel
->r_offset
);
684 /* When we calculated the symbol "value" we had an offset in the
685 DIR32's word in memory (we read and add it above). However,
686 the jsr we create does NOT have this offset encoded, so we
687 have to add it to the addend to preserve it. */
688 irel
->r_addend
+= bfd_get_32 (abfd
, contents
+ paddr
);
690 /* See if there is another R_SH_USES reloc referring to the same
692 for (irelscan
= internal_relocs
; irelscan
< irelend
; irelscan
++)
693 if (ELF32_R_TYPE (irelscan
->r_info
) == (int) R_SH_USES
694 && laddr
== irelscan
->r_offset
+ 4 + irelscan
->r_addend
)
696 if (irelscan
< irelend
)
698 /* Some other function call depends upon this register load,
699 and we have not yet converted that function call.
700 Indeed, we may never be able to convert it. There is
701 nothing else we can do at this point. */
705 /* Look for a R_SH_COUNT reloc on the location where the
706 function address is stored. Do this before deleting any
707 bytes, to avoid confusion about the address. */
708 for (irelcount
= internal_relocs
; irelcount
< irelend
; irelcount
++)
709 if (irelcount
->r_offset
== paddr
710 && ELF32_R_TYPE (irelcount
->r_info
) == (int) R_SH_COUNT
)
713 /* Delete the register load. */
714 if (! sh_elf_relax_delete_bytes (abfd
, sec
, laddr
, 2))
717 /* That will change things, so, just in case it permits some
718 other function call to come within range, we should relax
719 again. Note that this is not required, and it may be slow. */
722 /* Now check whether we got a COUNT reloc. */
723 if (irelcount
>= irelend
)
726 /* xgettext:c-format */
727 (_("%pB: %#" PRIx64
": warning: "
728 "could not find expected COUNT reloc"),
729 abfd
, (uint64_t) paddr
);
733 /* The number of uses is stored in the r_addend field. We've
735 if (irelcount
->r_addend
== 0)
737 /* xgettext:c-format */
738 _bfd_error_handler (_("%pB: %#" PRIx64
": warning: bad count"),
739 abfd
, (uint64_t) paddr
);
743 --irelcount
->r_addend
;
745 /* If there are no more uses, we can delete the address. Reload
746 the address from irelfn, in case it was changed by the
747 previous call to sh_elf_relax_delete_bytes. */
748 if (irelcount
->r_addend
== 0)
750 if (! sh_elf_relax_delete_bytes (abfd
, sec
, irelfn
->r_offset
, 4))
754 /* We've done all we can with that function call. */
757 /* Look for load and store instructions that we can align on four
759 if ((elf_elfheader (abfd
)->e_flags
& EF_SH_MACH_MASK
) != EF_SH4
764 /* Get the section contents. */
765 if (contents
== NULL
)
767 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
768 contents
= elf_section_data (sec
)->this_hdr
.contents
;
771 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
776 if (! sh_elf_align_loads (abfd
, sec
, internal_relocs
, contents
,
782 elf_section_data (sec
)->relocs
= internal_relocs
;
783 elf_section_data (sec
)->this_hdr
.contents
= contents
;
784 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
789 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
791 if (! link_info
->keep_memory
)
795 /* Cache the symbols for elf_link_input_bfd. */
796 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
801 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
803 if (! link_info
->keep_memory
)
807 /* Cache the section contents for elf_link_input_bfd. */
808 elf_section_data (sec
)->this_hdr
.contents
= contents
;
812 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
813 free (internal_relocs
);
818 if (symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
820 if (elf_section_data (sec
)->this_hdr
.contents
!= contents
)
822 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
823 free (internal_relocs
);
828 /* Delete some bytes from a section while relaxing. FIXME: There is a
829 lot of duplication between this function and sh_relax_delete_bytes
833 sh_elf_relax_delete_bytes (bfd
*abfd
, asection
*sec
, bfd_vma addr
,
836 Elf_Internal_Shdr
*symtab_hdr
;
837 unsigned int sec_shndx
;
839 Elf_Internal_Rela
*irel
, *irelend
;
840 Elf_Internal_Rela
*irelalign
;
842 Elf_Internal_Sym
*isymbuf
, *isym
, *isymend
;
843 struct elf_link_hash_entry
**sym_hashes
;
844 struct elf_link_hash_entry
**end_hashes
;
845 unsigned int symcount
;
848 symtab_hdr
= &elf_symtab_hdr (abfd
);
849 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
851 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
853 contents
= elf_section_data (sec
)->this_hdr
.contents
;
855 /* The deletion must stop at the next ALIGN reloc for an alignment
856 power larger than the number of bytes we are deleting. */
861 irel
= elf_section_data (sec
)->relocs
;
862 irelend
= irel
+ sec
->reloc_count
;
863 for (; irel
< irelend
; irel
++)
865 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_ALIGN
866 && irel
->r_offset
> addr
867 && count
< (1 << irel
->r_addend
))
870 toaddr
= irel
->r_offset
;
875 /* Actually delete the bytes. */
876 memmove (contents
+ addr
, contents
+ addr
+ count
,
877 (size_t) (toaddr
- addr
- count
));
878 if (irelalign
== NULL
)
884 #define NOP_OPCODE (0x0009)
886 BFD_ASSERT ((count
& 1) == 0);
887 for (i
= 0; i
< count
; i
+= 2)
888 bfd_put_16 (abfd
, (bfd_vma
) NOP_OPCODE
, contents
+ toaddr
- count
+ i
);
891 /* Adjust all the relocs. */
892 for (irel
= elf_section_data (sec
)->relocs
; irel
< irelend
; irel
++)
894 bfd_vma nraddr
, stop
;
897 int off
, adjust
, oinsn
;
898 bfd_signed_vma voff
= 0;
899 bfd_boolean overflow
;
901 /* Get the new reloc address. */
902 nraddr
= irel
->r_offset
;
903 if ((irel
->r_offset
> addr
904 && irel
->r_offset
< toaddr
)
905 || (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_ALIGN
906 && irel
->r_offset
== toaddr
))
909 /* See if this reloc was for the bytes we have deleted, in which
910 case we no longer care about it. Don't delete relocs which
911 represent addresses, though. */
912 if (irel
->r_offset
>= addr
913 && irel
->r_offset
< addr
+ count
914 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_ALIGN
915 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_CODE
916 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_DATA
917 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_LABEL
)
918 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
921 /* If this is a PC relative reloc, see if the range it covers
922 includes the bytes we have deleted. */
923 switch ((enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
))
932 start
= irel
->r_offset
;
933 insn
= bfd_get_16 (abfd
, contents
+ nraddr
);
937 switch ((enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
))
944 /* If this reloc is against a symbol defined in this
945 section, and the symbol will not be adjusted below, we
946 must check the addend to see it will put the value in
947 range to be adjusted, and hence must be changed. */
948 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
950 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
951 if (isym
->st_shndx
== sec_shndx
952 && (isym
->st_value
<= addr
953 || isym
->st_value
>= toaddr
))
957 if (get_howto_table (abfd
)[R_SH_DIR32
].partial_inplace
)
959 val
= bfd_get_32 (abfd
, contents
+ nraddr
);
960 val
+= isym
->st_value
;
961 if (val
> addr
&& val
< toaddr
)
962 bfd_put_32 (abfd
, val
- count
, contents
+ nraddr
);
966 val
= isym
->st_value
+ irel
->r_addend
;
967 if (val
> addr
&& val
< toaddr
)
968 irel
->r_addend
-= count
;
979 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ 4 + off
* 2);
986 /* This has been made by previous relaxation. Since the
987 relocation will be against an external symbol, the
988 final relocation will just do the right thing. */
995 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ 4 + off
* 2);
997 /* The addend will be against the section symbol, thus
998 for adjusting the addend, the relevant start is the
999 start of the section.
1000 N.B. If we want to abandon in-place changes here and
1001 test directly using symbol + addend, we have to take into
1002 account that the addend has already been adjusted by -4. */
1003 if (stop
> addr
&& stop
< toaddr
)
1004 irel
->r_addend
-= count
;
1010 stop
= start
+ 4 + off
* 2;
1015 stop
= (start
& ~(bfd_vma
) 3) + 4 + off
* 4;
1021 /* These relocs types represent
1023 The r_addend field holds the difference between the reloc
1024 address and L1. That is the start of the reloc, and
1025 adding in the contents gives us the top. We must adjust
1026 both the r_offset field and the section contents.
1027 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
1028 and the elf bfd r_offset is called r_vaddr. */
1030 stop
= irel
->r_offset
;
1031 start
= (bfd_vma
) ((bfd_signed_vma
) stop
- (long) irel
->r_addend
);
1035 && (stop
<= addr
|| stop
>= toaddr
))
1036 irel
->r_addend
+= count
;
1037 else if (stop
> addr
1039 && (start
<= addr
|| start
>= toaddr
))
1040 irel
->r_addend
-= count
;
1042 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_SWITCH16
)
1043 voff
= bfd_get_signed_16 (abfd
, contents
+ nraddr
);
1044 else if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_SWITCH8
)
1045 voff
= bfd_get_8 (abfd
, contents
+ nraddr
);
1047 voff
= bfd_get_signed_32 (abfd
, contents
+ nraddr
);
1048 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ voff
);
1053 start
= irel
->r_offset
;
1054 stop
= (bfd_vma
) ((bfd_signed_vma
) start
1055 + (long) irel
->r_addend
1062 && (stop
<= addr
|| stop
>= toaddr
))
1064 else if (stop
> addr
1066 && (start
<= addr
|| start
>= toaddr
))
1075 switch ((enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
))
1084 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1086 bfd_put_16 (abfd
, (bfd_vma
) insn
, contents
+ nraddr
);
1091 if ((oinsn
& 0xf000) != (insn
& 0xf000))
1093 bfd_put_16 (abfd
, (bfd_vma
) insn
, contents
+ nraddr
);
1097 BFD_ASSERT (adjust
== count
|| count
>= 4);
1102 if ((irel
->r_offset
& 3) == 0)
1105 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1107 bfd_put_16 (abfd
, (bfd_vma
) insn
, contents
+ nraddr
);
1112 if (voff
< 0 || voff
>= 0xff)
1114 bfd_put_8 (abfd
, voff
, contents
+ nraddr
);
1119 if (voff
< - 0x8000 || voff
>= 0x8000)
1121 bfd_put_signed_16 (abfd
, (bfd_vma
) voff
, contents
+ nraddr
);
1126 bfd_put_signed_32 (abfd
, (bfd_vma
) voff
, contents
+ nraddr
);
1130 irel
->r_addend
+= adjust
;
1137 /* xgettext:c-format */
1138 (_("%pB: %#" PRIx64
": fatal: reloc overflow while relaxing"),
1139 abfd
, (uint64_t) irel
->r_offset
);
1140 bfd_set_error (bfd_error_bad_value
);
1145 irel
->r_offset
= nraddr
;
1148 /* Look through all the other sections. If there contain any IMM32
1149 relocs against internal symbols which we are not going to adjust
1150 below, we may need to adjust the addends. */
1151 for (o
= abfd
->sections
; o
!= NULL
; o
= o
->next
)
1153 Elf_Internal_Rela
*internal_relocs
;
1154 Elf_Internal_Rela
*irelscan
, *irelscanend
;
1155 bfd_byte
*ocontents
;
1158 || (o
->flags
& SEC_RELOC
) == 0
1159 || o
->reloc_count
== 0)
1162 /* We always cache the relocs. Perhaps, if info->keep_memory is
1163 FALSE, we should free them, if we are permitted to, when we
1164 leave sh_coff_relax_section. */
1165 internal_relocs
= (_bfd_elf_link_read_relocs
1166 (abfd
, o
, NULL
, (Elf_Internal_Rela
*) NULL
, TRUE
));
1167 if (internal_relocs
== NULL
)
1171 irelscanend
= internal_relocs
+ o
->reloc_count
;
1172 for (irelscan
= internal_relocs
; irelscan
< irelscanend
; irelscan
++)
1174 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
1175 if (ELF32_R_TYPE (irelscan
->r_info
) == (int) R_SH_SWITCH32
)
1177 bfd_vma start
, stop
;
1178 bfd_signed_vma voff
;
1180 if (ocontents
== NULL
)
1182 if (elf_section_data (o
)->this_hdr
.contents
!= NULL
)
1183 ocontents
= elf_section_data (o
)->this_hdr
.contents
;
1186 /* We always cache the section contents.
1187 Perhaps, if info->keep_memory is FALSE, we
1188 should free them, if we are permitted to,
1189 when we leave sh_coff_relax_section. */
1190 if (!bfd_malloc_and_get_section (abfd
, o
, &ocontents
))
1196 elf_section_data (o
)->this_hdr
.contents
= ocontents
;
1200 stop
= irelscan
->r_offset
;
1202 = (bfd_vma
) ((bfd_signed_vma
) stop
- (long) irelscan
->r_addend
);
1204 /* STOP is in a different section, so it won't change. */
1205 if (start
> addr
&& start
< toaddr
)
1206 irelscan
->r_addend
+= count
;
1208 voff
= bfd_get_signed_32 (abfd
, ocontents
+ irelscan
->r_offset
);
1209 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ voff
);
1213 && (stop
<= addr
|| stop
>= toaddr
))
1214 bfd_put_signed_32 (abfd
, (bfd_vma
) voff
+ count
,
1215 ocontents
+ irelscan
->r_offset
);
1216 else if (stop
> addr
1218 && (start
<= addr
|| start
>= toaddr
))
1219 bfd_put_signed_32 (abfd
, (bfd_vma
) voff
- count
,
1220 ocontents
+ irelscan
->r_offset
);
1223 if (ELF32_R_TYPE (irelscan
->r_info
) != (int) R_SH_DIR32
)
1226 if (ELF32_R_SYM (irelscan
->r_info
) >= symtab_hdr
->sh_info
)
1230 isym
= isymbuf
+ ELF32_R_SYM (irelscan
->r_info
);
1231 if (isym
->st_shndx
== sec_shndx
1232 && (isym
->st_value
<= addr
1233 || isym
->st_value
>= toaddr
))
1237 if (ocontents
== NULL
)
1239 if (elf_section_data (o
)->this_hdr
.contents
!= NULL
)
1240 ocontents
= elf_section_data (o
)->this_hdr
.contents
;
1243 /* We always cache the section contents.
1244 Perhaps, if info->keep_memory is FALSE, we
1245 should free them, if we are permitted to,
1246 when we leave sh_coff_relax_section. */
1247 if (!bfd_malloc_and_get_section (abfd
, o
, &ocontents
))
1253 elf_section_data (o
)->this_hdr
.contents
= ocontents
;
1257 val
= bfd_get_32 (abfd
, ocontents
+ irelscan
->r_offset
);
1258 val
+= isym
->st_value
;
1259 if (val
> addr
&& val
< toaddr
)
1260 bfd_put_32 (abfd
, val
- count
,
1261 ocontents
+ irelscan
->r_offset
);
1266 /* Adjust the local symbols defined in this section. */
1267 isymend
= isymbuf
+ symtab_hdr
->sh_info
;
1268 for (isym
= isymbuf
; isym
< isymend
; isym
++)
1270 if (isym
->st_shndx
== sec_shndx
1271 && isym
->st_value
> addr
1272 && isym
->st_value
< toaddr
)
1273 isym
->st_value
-= count
;
1276 /* Now adjust the global symbols defined in this section. */
1277 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
1278 - symtab_hdr
->sh_info
);
1279 sym_hashes
= elf_sym_hashes (abfd
);
1280 end_hashes
= sym_hashes
+ symcount
;
1281 for (; sym_hashes
< end_hashes
; sym_hashes
++)
1283 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
1284 if ((sym_hash
->root
.type
== bfd_link_hash_defined
1285 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
1286 && sym_hash
->root
.u
.def
.section
== sec
1287 && sym_hash
->root
.u
.def
.value
> addr
1288 && sym_hash
->root
.u
.def
.value
< toaddr
)
1290 sym_hash
->root
.u
.def
.value
-= count
;
1294 /* See if we can move the ALIGN reloc forward. We have adjusted
1295 r_offset for it already. */
1296 if (irelalign
!= NULL
)
1298 bfd_vma alignto
, alignaddr
;
1300 alignto
= BFD_ALIGN (toaddr
, 1 << irelalign
->r_addend
);
1301 alignaddr
= BFD_ALIGN (irelalign
->r_offset
,
1302 1 << irelalign
->r_addend
);
1303 if (alignto
!= alignaddr
)
1305 /* Tail recursion. */
1306 return sh_elf_relax_delete_bytes (abfd
, sec
, alignaddr
,
1307 (int) (alignto
- alignaddr
));
1314 /* Look for loads and stores which we can align to four byte
1315 boundaries. This is like sh_align_loads in coff-sh.c. */
1318 sh_elf_align_loads (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
,
1319 Elf_Internal_Rela
*internal_relocs
,
1320 bfd_byte
*contents ATTRIBUTE_UNUSED
,
1321 bfd_boolean
*pswapped
)
1323 Elf_Internal_Rela
*irel
, *irelend
;
1324 bfd_vma
*labels
= NULL
;
1325 bfd_vma
*label
, *label_end
;
1330 irelend
= internal_relocs
+ sec
->reloc_count
;
1332 /* Get all the addresses with labels on them. */
1333 amt
= sec
->reloc_count
;
1334 amt
*= sizeof (bfd_vma
);
1335 labels
= (bfd_vma
*) bfd_malloc (amt
);
1339 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1341 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_LABEL
)
1343 *label_end
= irel
->r_offset
;
1348 /* Note that the assembler currently always outputs relocs in
1349 address order. If that ever changes, this code will need to sort
1350 the label values and the relocs. */
1354 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1356 bfd_vma start
, stop
;
1358 if (ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_CODE
)
1361 start
= irel
->r_offset
;
1363 for (irel
++; irel
< irelend
; irel
++)
1364 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_DATA
)
1367 stop
= irel
->r_offset
;
1371 if (! _bfd_sh_align_load_span (abfd
, sec
, contents
, sh_elf_swap_insns
,
1372 internal_relocs
, &label
,
1373 label_end
, start
, stop
, pswapped
))
1386 /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
1389 sh_elf_swap_insns (bfd
*abfd
, asection
*sec
, void *relocs
,
1390 bfd_byte
*contents
, bfd_vma addr
)
1392 Elf_Internal_Rela
*internal_relocs
= (Elf_Internal_Rela
*) relocs
;
1393 unsigned short i1
, i2
;
1394 Elf_Internal_Rela
*irel
, *irelend
;
1396 /* Swap the instructions themselves. */
1397 i1
= bfd_get_16 (abfd
, contents
+ addr
);
1398 i2
= bfd_get_16 (abfd
, contents
+ addr
+ 2);
1399 bfd_put_16 (abfd
, (bfd_vma
) i2
, contents
+ addr
);
1400 bfd_put_16 (abfd
, (bfd_vma
) i1
, contents
+ addr
+ 2);
1402 /* Adjust all reloc addresses. */
1403 irelend
= internal_relocs
+ sec
->reloc_count
;
1404 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1406 enum elf_sh_reloc_type type
;
1409 /* There are a few special types of relocs that we don't want to
1410 adjust. These relocs do not apply to the instruction itself,
1411 but are only associated with the address. */
1412 type
= (enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
);
1413 if (type
== R_SH_ALIGN
1414 || type
== R_SH_CODE
1415 || type
== R_SH_DATA
1416 || type
== R_SH_LABEL
)
1419 /* If an R_SH_USES reloc points to one of the addresses being
1420 swapped, we must adjust it. It would be incorrect to do this
1421 for a jump, though, since we want to execute both
1422 instructions after the jump. (We have avoided swapping
1423 around a label, so the jump will not wind up executing an
1424 instruction it shouldn't). */
1425 if (type
== R_SH_USES
)
1429 off
= irel
->r_offset
+ 4 + irel
->r_addend
;
1431 irel
->r_offset
+= 2;
1432 else if (off
== addr
+ 2)
1433 irel
->r_offset
-= 2;
1436 if (irel
->r_offset
== addr
)
1438 irel
->r_offset
+= 2;
1441 else if (irel
->r_offset
== addr
+ 2)
1443 irel
->r_offset
-= 2;
1452 unsigned short insn
, oinsn
;
1453 bfd_boolean overflow
;
1455 loc
= contents
+ irel
->r_offset
;
1464 insn
= bfd_get_16 (abfd
, loc
);
1467 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1469 bfd_put_16 (abfd
, (bfd_vma
) insn
, loc
);
1473 insn
= bfd_get_16 (abfd
, loc
);
1476 if ((oinsn
& 0xf000) != (insn
& 0xf000))
1478 bfd_put_16 (abfd
, (bfd_vma
) insn
, loc
);
1482 /* This reloc ignores the least significant 3 bits of
1483 the program counter before adding in the offset.
1484 This means that if ADDR is at an even address, the
1485 swap will not affect the offset. If ADDR is an at an
1486 odd address, then the instruction will be crossing a
1487 four byte boundary, and must be adjusted. */
1488 if ((addr
& 3) != 0)
1490 insn
= bfd_get_16 (abfd
, loc
);
1493 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1495 bfd_put_16 (abfd
, (bfd_vma
) insn
, loc
);
1504 /* xgettext:c-format */
1505 (_("%pB: %#" PRIx64
": fatal: reloc overflow while relaxing"),
1506 abfd
, (uint64_t) irel
->r_offset
);
1507 bfd_set_error (bfd_error_bad_value
);
1516 /* Describes one of the various PLT styles. */
1518 struct elf_sh_plt_info
1520 /* The template for the first PLT entry, or NULL if there is no special
1522 const bfd_byte
*plt0_entry
;
1524 /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */
1525 bfd_vma plt0_entry_size
;
1527 /* Index I is the offset into PLT0_ENTRY of a pointer to
1528 _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE
1529 if there is no such pointer. */
1530 bfd_vma plt0_got_fields
[3];
1532 /* The template for a symbol's PLT entry. */
1533 const bfd_byte
*symbol_entry
;
1535 /* The size of SYMBOL_ENTRY in bytes. */
1536 bfd_vma symbol_entry_size
;
1538 /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used
1539 on all targets. The comments by each member indicate the value
1540 that the field must hold. */
1542 bfd_vma got_entry
; /* the address of the symbol's .got.plt entry */
1543 bfd_vma plt
; /* .plt (or a branch to .plt on VxWorks) */
1544 bfd_vma reloc_offset
; /* the offset of the symbol's JMP_SLOT reloc */
1545 bfd_boolean got20
; /* TRUE if got_entry points to a movi20
1546 instruction (instead of a constant pool
1550 /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */
1551 bfd_vma symbol_resolve_offset
;
1553 /* A different PLT layout which can be used for the first
1554 MAX_SHORT_PLT entries. It must share the same plt0. NULL in
1556 const struct elf_sh_plt_info
*short_plt
;
1559 /* The size in bytes of an entry in the procedure linkage table. */
1561 #define ELF_PLT_ENTRY_SIZE 28
1563 /* First entry in an absolute procedure linkage table look like this. */
1565 /* Note - this code has been "optimised" not to use r2. r2 is used by
1566 GCC to return the address of large structures, so it should not be
1567 corrupted here. This does mean however, that this PLT does not conform
1568 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
1569 and r2 contains the GOT id. This version stores the GOT id in r0 and
1570 ignores the type. Loaders can easily detect this difference however,
1571 since the type will always be 0 or 8, and the GOT ids will always be
1572 greater than or equal to 12. */
1573 static const bfd_byte elf_sh_plt0_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1575 0xd0, 0x05, /* mov.l 2f,r0 */
1576 0x60, 0x02, /* mov.l @r0,r0 */
1577 0x2f, 0x06, /* mov.l r0,@-r15 */
1578 0xd0, 0x03, /* mov.l 1f,r0 */
1579 0x60, 0x02, /* mov.l @r0,r0 */
1580 0x40, 0x2b, /* jmp @r0 */
1581 0x60, 0xf6, /* mov.l @r15+,r0 */
1582 0x00, 0x09, /* nop */
1583 0x00, 0x09, /* nop */
1584 0x00, 0x09, /* nop */
1585 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1586 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1589 static const bfd_byte elf_sh_plt0_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1591 0x05, 0xd0, /* mov.l 2f,r0 */
1592 0x02, 0x60, /* mov.l @r0,r0 */
1593 0x06, 0x2f, /* mov.l r0,@-r15 */
1594 0x03, 0xd0, /* mov.l 1f,r0 */
1595 0x02, 0x60, /* mov.l @r0,r0 */
1596 0x2b, 0x40, /* jmp @r0 */
1597 0xf6, 0x60, /* mov.l @r15+,r0 */
1598 0x09, 0x00, /* nop */
1599 0x09, 0x00, /* nop */
1600 0x09, 0x00, /* nop */
1601 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1602 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1605 /* Sebsequent entries in an absolute procedure linkage table look like
1608 static const bfd_byte elf_sh_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1610 0xd0, 0x04, /* mov.l 1f,r0 */
1611 0x60, 0x02, /* mov.l @(r0,r12),r0 */
1612 0xd1, 0x02, /* mov.l 0f,r1 */
1613 0x40, 0x2b, /* jmp @r0 */
1614 0x60, 0x13, /* mov r1,r0 */
1615 0xd1, 0x03, /* mov.l 2f,r1 */
1616 0x40, 0x2b, /* jmp @r0 */
1617 0x00, 0x09, /* nop */
1618 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1619 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1620 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1623 static const bfd_byte elf_sh_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1625 0x04, 0xd0, /* mov.l 1f,r0 */
1626 0x02, 0x60, /* mov.l @r0,r0 */
1627 0x02, 0xd1, /* mov.l 0f,r1 */
1628 0x2b, 0x40, /* jmp @r0 */
1629 0x13, 0x60, /* mov r1,r0 */
1630 0x03, 0xd1, /* mov.l 2f,r1 */
1631 0x2b, 0x40, /* jmp @r0 */
1632 0x09, 0x00, /* nop */
1633 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1634 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1635 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1638 /* Entries in a PIC procedure linkage table look like this. */
1640 static const bfd_byte elf_sh_pic_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1642 0xd0, 0x04, /* mov.l 1f,r0 */
1643 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1644 0x40, 0x2b, /* jmp @r0 */
1645 0x00, 0x09, /* nop */
1646 0x50, 0xc2, /* mov.l @(8,r12),r0 */
1647 0xd1, 0x03, /* mov.l 2f,r1 */
1648 0x40, 0x2b, /* jmp @r0 */
1649 0x50, 0xc1, /* mov.l @(4,r12),r0 */
1650 0x00, 0x09, /* nop */
1651 0x00, 0x09, /* nop */
1652 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1653 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1656 static const bfd_byte elf_sh_pic_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1658 0x04, 0xd0, /* mov.l 1f,r0 */
1659 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1660 0x2b, 0x40, /* jmp @r0 */
1661 0x09, 0x00, /* nop */
1662 0xc2, 0x50, /* mov.l @(8,r12),r0 */
1663 0x03, 0xd1, /* mov.l 2f,r1 */
1664 0x2b, 0x40, /* jmp @r0 */
1665 0xc1, 0x50, /* mov.l @(4,r12),r0 */
1666 0x09, 0x00, /* nop */
1667 0x09, 0x00, /* nop */
1668 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1669 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1672 static const struct elf_sh_plt_info elf_sh_plts
[2][2] = {
1675 /* Big-endian non-PIC. */
1676 elf_sh_plt0_entry_be
,
1678 { MINUS_ONE
, 24, 20 },
1679 elf_sh_plt_entry_be
,
1681 { 20, 16, 24, FALSE
},
1686 /* Little-endian non-PIC. */
1687 elf_sh_plt0_entry_le
,
1689 { MINUS_ONE
, 24, 20 },
1690 elf_sh_plt_entry_le
,
1692 { 20, 16, 24, FALSE
},
1699 /* Big-endian PIC. */
1700 elf_sh_plt0_entry_be
,
1702 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1703 elf_sh_pic_plt_entry_be
,
1705 { 20, MINUS_ONE
, 24, FALSE
},
1710 /* Little-endian PIC. */
1711 elf_sh_plt0_entry_le
,
1713 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1714 elf_sh_pic_plt_entry_le
,
1716 { 20, MINUS_ONE
, 24, FALSE
},
1723 #define VXWORKS_PLT_HEADER_SIZE 12
1724 #define VXWORKS_PLT_ENTRY_SIZE 24
1726 static const bfd_byte vxworks_sh_plt0_entry_be
[VXWORKS_PLT_HEADER_SIZE
] =
1728 0xd1, 0x01, /* mov.l @(8,pc),r1 */
1729 0x61, 0x12, /* mov.l @r1,r1 */
1730 0x41, 0x2b, /* jmp @r1 */
1731 0x00, 0x09, /* nop */
1732 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1735 static const bfd_byte vxworks_sh_plt0_entry_le
[VXWORKS_PLT_HEADER_SIZE
] =
1737 0x01, 0xd1, /* mov.l @(8,pc),r1 */
1738 0x12, 0x61, /* mov.l @r1,r1 */
1739 0x2b, 0x41, /* jmp @r1 */
1740 0x09, 0x00, /* nop */
1741 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1744 static const bfd_byte vxworks_sh_plt_entry_be
[VXWORKS_PLT_ENTRY_SIZE
] =
1746 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1747 0x60, 0x02, /* mov.l @r0,r0 */
1748 0x40, 0x2b, /* jmp @r0 */
1749 0x00, 0x09, /* nop */
1750 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1751 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1752 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */
1753 0x00, 0x09, /* nop */
1754 0x00, 0x09, /* nop */
1755 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1758 static const bfd_byte vxworks_sh_plt_entry_le
[VXWORKS_PLT_ENTRY_SIZE
] =
1760 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1761 0x02, 0x60, /* mov.l @r0,r0 */
1762 0x2b, 0x40, /* jmp @r0 */
1763 0x09, 0x00, /* nop */
1764 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1765 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1766 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */
1767 0x09, 0x00, /* nop */
1768 0x09, 0x00, /* nop */
1769 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1772 static const bfd_byte vxworks_sh_pic_plt_entry_be
[VXWORKS_PLT_ENTRY_SIZE
] =
1774 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1775 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1776 0x40, 0x2b, /* jmp @r0 */
1777 0x00, 0x09, /* nop */
1778 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
1779 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1780 0x51, 0xc2, /* mov.l @(8,r12),r1 */
1781 0x41, 0x2b, /* jmp @r1 */
1782 0x00, 0x09, /* nop */
1783 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1786 static const bfd_byte vxworks_sh_pic_plt_entry_le
[VXWORKS_PLT_ENTRY_SIZE
] =
1788 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1789 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1790 0x2b, 0x40, /* jmp @r0 */
1791 0x09, 0x00, /* nop */
1792 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
1793 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1794 0xc2, 0x51, /* mov.l @(8,r12),r1 */
1795 0x2b, 0x41, /* jmp @r1 */
1796 0x09, 0x00, /* nop */
1797 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1800 static const struct elf_sh_plt_info vxworks_sh_plts
[2][2] = {
1803 /* Big-endian non-PIC. */
1804 vxworks_sh_plt0_entry_be
,
1805 VXWORKS_PLT_HEADER_SIZE
,
1806 { MINUS_ONE
, MINUS_ONE
, 8 },
1807 vxworks_sh_plt_entry_be
,
1808 VXWORKS_PLT_ENTRY_SIZE
,
1809 { 8, 14, 20, FALSE
},
1814 /* Little-endian non-PIC. */
1815 vxworks_sh_plt0_entry_le
,
1816 VXWORKS_PLT_HEADER_SIZE
,
1817 { MINUS_ONE
, MINUS_ONE
, 8 },
1818 vxworks_sh_plt_entry_le
,
1819 VXWORKS_PLT_ENTRY_SIZE
,
1820 { 8, 14, 20, FALSE
},
1827 /* Big-endian PIC. */
1830 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1831 vxworks_sh_pic_plt_entry_be
,
1832 VXWORKS_PLT_ENTRY_SIZE
,
1833 { 8, MINUS_ONE
, 20, FALSE
},
1838 /* Little-endian PIC. */
1841 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1842 vxworks_sh_pic_plt_entry_le
,
1843 VXWORKS_PLT_ENTRY_SIZE
,
1844 { 8, MINUS_ONE
, 20, FALSE
},
1851 /* FDPIC PLT entries. Two unimplemented optimizations for lazy
1852 binding are to omit the lazy binding stub when linking with -z now
1853 and to move lazy binding stubs into a separate region for better
1856 #define FDPIC_PLT_ENTRY_SIZE 28
1857 #define FDPIC_PLT_LAZY_OFFSET 20
1859 /* FIXME: The lazy binding stub requires a plt0 - which may need to be
1860 duplicated if it is out of range, or which can be inlined. So
1861 right now it is always inlined, which wastes a word per stub. It
1862 might be easier to handle the duplication if we put the lazy
1863 stubs separately. */
1865 static const bfd_byte fdpic_sh_plt_entry_be
[FDPIC_PLT_ENTRY_SIZE
] =
1867 0xd0, 0x02, /* mov.l @(12,pc),r0 */
1868 0x01, 0xce, /* mov.l @(r0,r12),r1 */
1869 0x70, 0x04, /* add #4, r0 */
1870 0x41, 0x2b, /* jmp @r1 */
1871 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
1872 0x00, 0x09, /* nop */
1873 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
1874 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1875 0x60, 0xc2, /* mov.l @r12,r0 */
1876 0x40, 0x2b, /* jmp @r0 */
1877 0x53, 0xc1, /* mov.l @(4,r12),r3 */
1878 0x00, 0x09, /* nop */
1881 static const bfd_byte fdpic_sh_plt_entry_le
[FDPIC_PLT_ENTRY_SIZE
] =
1883 0x02, 0xd0, /* mov.l @(12,pc),r0 */
1884 0xce, 0x01, /* mov.l @(r0,r12),r1 */
1885 0x04, 0x70, /* add #4, r0 */
1886 0x2b, 0x41, /* jmp @r1 */
1887 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
1888 0x09, 0x00, /* nop */
1889 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
1890 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1891 0xc2, 0x60, /* mov.l @r12,r0 */
1892 0x2b, 0x40, /* jmp @r0 */
1893 0xc1, 0x53, /* mov.l @(4,r12),r3 */
1894 0x09, 0x00, /* nop */
1897 static const struct elf_sh_plt_info fdpic_sh_plts
[2] = {
1899 /* Big-endian PIC. */
1902 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1903 fdpic_sh_plt_entry_be
,
1904 FDPIC_PLT_ENTRY_SIZE
,
1905 { 12, MINUS_ONE
, 16, FALSE
},
1906 FDPIC_PLT_LAZY_OFFSET
,
1910 /* Little-endian PIC. */
1913 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1914 fdpic_sh_plt_entry_le
,
1915 FDPIC_PLT_ENTRY_SIZE
,
1916 { 12, MINUS_ONE
, 16, FALSE
},
1917 FDPIC_PLT_LAZY_OFFSET
,
1922 /* On SH2A, we can use the movi20 instruction to generate shorter PLT
1923 entries for the first 64K slots. We use the normal FDPIC PLT entry
1924 past that point; we could also use movi20s, which might be faster,
1925 but would not be any smaller. */
1927 #define FDPIC_SH2A_PLT_ENTRY_SIZE 24
1928 #define FDPIC_SH2A_PLT_LAZY_OFFSET 16
1930 static const bfd_byte fdpic_sh2a_plt_entry_be
[FDPIC_SH2A_PLT_ENTRY_SIZE
] =
1932 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
1933 0x01, 0xce, /* mov.l @(r0,r12),r1 */
1934 0x70, 0x04, /* add #4, r0 */
1935 0x41, 0x2b, /* jmp @r1 */
1936 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
1937 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1938 0x60, 0xc2, /* mov.l @r12,r0 */
1939 0x40, 0x2b, /* jmp @r0 */
1940 0x53, 0xc1, /* mov.l @(4,r12),r3 */
1941 0x00, 0x09, /* nop */
1944 static const bfd_byte fdpic_sh2a_plt_entry_le
[FDPIC_SH2A_PLT_ENTRY_SIZE
] =
1946 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
1947 0xce, 0x01, /* mov.l @(r0,r12),r1 */
1948 0x04, 0x70, /* add #4, r0 */
1949 0x2b, 0x41, /* jmp @r1 */
1950 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
1951 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1952 0xc2, 0x60, /* mov.l @r12,r0 */
1953 0x2b, 0x40, /* jmp @r0 */
1954 0xc1, 0x53, /* mov.l @(4,r12),r3 */
1955 0x09, 0x00, /* nop */
1958 static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be
= {
1959 /* Big-endian FDPIC, max index 64K. */
1962 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1963 fdpic_sh2a_plt_entry_be
,
1964 FDPIC_SH2A_PLT_ENTRY_SIZE
,
1965 { 0, MINUS_ONE
, 12, TRUE
},
1966 FDPIC_SH2A_PLT_LAZY_OFFSET
,
1970 static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le
= {
1971 /* Little-endian FDPIC, max index 64K. */
1974 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1975 fdpic_sh2a_plt_entry_le
,
1976 FDPIC_SH2A_PLT_ENTRY_SIZE
,
1977 { 0, MINUS_ONE
, 12, TRUE
},
1978 FDPIC_SH2A_PLT_LAZY_OFFSET
,
1982 static const struct elf_sh_plt_info fdpic_sh2a_plts
[2] = {
1984 /* Big-endian PIC. */
1987 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1988 fdpic_sh_plt_entry_be
,
1989 FDPIC_PLT_ENTRY_SIZE
,
1990 { 12, MINUS_ONE
, 16, FALSE
},
1991 FDPIC_PLT_LAZY_OFFSET
,
1992 &fdpic_sh2a_short_plt_be
1995 /* Little-endian PIC. */
1998 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1999 fdpic_sh_plt_entry_le
,
2000 FDPIC_PLT_ENTRY_SIZE
,
2001 { 12, MINUS_ONE
, 16, FALSE
},
2002 FDPIC_PLT_LAZY_OFFSET
,
2003 &fdpic_sh2a_short_plt_le
2007 /* Return the type of PLT associated with ABFD. PIC_P is true if
2008 the object is position-independent. */
2010 static const struct elf_sh_plt_info
*
2011 get_plt_info (bfd
*abfd
, bfd_boolean pic_p
)
2013 if (fdpic_object_p (abfd
))
2015 /* If any input file requires SH2A we can use a shorter PLT
2017 if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd
)) & arch_sh2a_base
)
2018 return &fdpic_sh2a_plts
[!bfd_big_endian (abfd
)];
2020 return &fdpic_sh_plts
[!bfd_big_endian (abfd
)];
2022 if (vxworks_object_p (abfd
))
2023 return &vxworks_sh_plts
[pic_p
][!bfd_big_endian (abfd
)];
2024 return &elf_sh_plts
[pic_p
][!bfd_big_endian (abfd
)];
2027 /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
2028 VALUE is the field's value and CODE_P is true if VALUE refers to code,
2032 install_plt_field (bfd
*output_bfd
, bfd_boolean code_p ATTRIBUTE_UNUSED
,
2033 unsigned long value
, bfd_byte
*addr
)
2035 bfd_put_32 (output_bfd
, value
, addr
);
2038 /* The number of PLT entries which can use a shorter PLT, if any.
2039 Currently always 64K, since only SH-2A FDPIC uses this; a
2040 20-bit movi20 can address that many function descriptors below
2041 _GLOBAL_OFFSET_TABLE_. */
2042 #define MAX_SHORT_PLT 65536
2044 /* Return the index of the PLT entry at byte offset OFFSET. */
2047 get_plt_index (const struct elf_sh_plt_info
*info
, bfd_vma offset
)
2049 bfd_vma plt_index
= 0;
2051 offset
-= info
->plt0_entry_size
;
2052 if (info
->short_plt
!= NULL
)
2054 if (offset
> MAX_SHORT_PLT
* info
->short_plt
->symbol_entry_size
)
2056 plt_index
= MAX_SHORT_PLT
;
2057 offset
-= MAX_SHORT_PLT
* info
->short_plt
->symbol_entry_size
;
2060 info
= info
->short_plt
;
2062 return plt_index
+ offset
/ info
->symbol_entry_size
;
2065 /* Do the inverse operation. */
2068 get_plt_offset (const struct elf_sh_plt_info
*info
, bfd_vma plt_index
)
2072 if (info
->short_plt
!= NULL
)
2074 if (plt_index
> MAX_SHORT_PLT
)
2076 offset
= MAX_SHORT_PLT
* info
->short_plt
->symbol_entry_size
;
2077 plt_index
-= MAX_SHORT_PLT
;
2080 info
= info
->short_plt
;
2082 return (offset
+ info
->plt0_entry_size
2083 + (plt_index
* info
->symbol_entry_size
));
2088 bfd_signed_vma refcount
;
2092 /* sh ELF linker hash entry. */
2094 struct elf_sh_link_hash_entry
2096 struct elf_link_hash_entry root
;
2098 bfd_signed_vma gotplt_refcount
;
2100 /* A local function descriptor, for FDPIC. The refcount counts
2101 R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20
2102 relocations; the PLT and GOT entry are accounted
2103 for separately. After adjust_dynamic_symbol, the offset is
2104 MINUS_ONE if there is no local descriptor (dynamic linker
2105 managed and no PLT entry, or undefined weak non-dynamic).
2106 During check_relocs we do not yet know whether the local
2107 descriptor will be canonical. */
2108 union gotref funcdesc
;
2110 /* How many of the above refcounted relocations were R_SH_FUNCDESC,
2111 and thus require fixups or relocations. */
2112 bfd_signed_vma abs_funcdesc_refcount
;
2115 GOT_UNKNOWN
= 0, GOT_NORMAL
, GOT_TLS_GD
, GOT_TLS_IE
, GOT_FUNCDESC
2119 #define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
2121 struct sh_elf_obj_tdata
2123 struct elf_obj_tdata root
;
2125 /* got_type for each local got entry. */
2126 char *local_got_type
;
2128 /* Function descriptor refcount and offset for each local symbol. */
2129 union gotref
*local_funcdesc
;
2132 #define sh_elf_tdata(abfd) \
2133 ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
2135 #define sh_elf_local_got_type(abfd) \
2136 (sh_elf_tdata (abfd)->local_got_type)
2138 #define sh_elf_local_funcdesc(abfd) \
2139 (sh_elf_tdata (abfd)->local_funcdesc)
2141 #define is_sh_elf(bfd) \
2142 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2143 && elf_tdata (bfd) != NULL \
2144 && elf_object_id (bfd) == SH_ELF_DATA)
2146 /* Override the generic function because we need to store sh_elf_obj_tdata
2147 as the specific tdata. */
2150 sh_elf_mkobject (bfd
*abfd
)
2152 return bfd_elf_allocate_object (abfd
, sizeof (struct sh_elf_obj_tdata
),
2156 /* sh ELF linker hash table. */
2158 struct elf_sh_link_hash_table
2160 struct elf_link_hash_table root
;
2162 /* Short-cuts to get to dynamic linker sections. */
2165 asection
*sfuncdesc
;
2166 asection
*srelfuncdesc
;
2169 /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
2172 /* Small local sym cache. */
2173 struct sym_cache sym_cache
;
2175 /* A counter or offset to track a TLS got entry. */
2178 bfd_signed_vma refcount
;
2182 /* The type of PLT to use. */
2183 const struct elf_sh_plt_info
*plt_info
;
2185 /* True if the target system uses FDPIC. */
2186 bfd_boolean fdpic_p
;
2189 /* Traverse an sh ELF linker hash table. */
2191 #define sh_elf_link_hash_traverse(table, func, info) \
2192 (elf_link_hash_traverse \
2194 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
2197 /* Get the sh ELF linker hash table from a link_info structure. */
2199 #define sh_elf_hash_table(p) \
2200 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
2201 == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL)
2203 /* Create an entry in an sh ELF linker hash table. */
2205 static struct bfd_hash_entry
*
2206 sh_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
2207 struct bfd_hash_table
*table
,
2210 struct elf_sh_link_hash_entry
*ret
=
2211 (struct elf_sh_link_hash_entry
*) entry
;
2213 /* Allocate the structure if it has not already been allocated by a
2215 if (ret
== (struct elf_sh_link_hash_entry
*) NULL
)
2216 ret
= ((struct elf_sh_link_hash_entry
*)
2217 bfd_hash_allocate (table
,
2218 sizeof (struct elf_sh_link_hash_entry
)));
2219 if (ret
== (struct elf_sh_link_hash_entry
*) NULL
)
2220 return (struct bfd_hash_entry
*) ret
;
2222 /* Call the allocation method of the superclass. */
2223 ret
= ((struct elf_sh_link_hash_entry
*)
2224 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
2226 if (ret
!= (struct elf_sh_link_hash_entry
*) NULL
)
2228 ret
->gotplt_refcount
= 0;
2229 ret
->funcdesc
.refcount
= 0;
2230 ret
->abs_funcdesc_refcount
= 0;
2231 ret
->got_type
= GOT_UNKNOWN
;
2234 return (struct bfd_hash_entry
*) ret
;
2237 /* Create an sh ELF linker hash table. */
2239 static struct bfd_link_hash_table
*
2240 sh_elf_link_hash_table_create (bfd
*abfd
)
2242 struct elf_sh_link_hash_table
*ret
;
2243 size_t amt
= sizeof (struct elf_sh_link_hash_table
);
2245 ret
= (struct elf_sh_link_hash_table
*) bfd_zmalloc (amt
);
2246 if (ret
== (struct elf_sh_link_hash_table
*) NULL
)
2249 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
2250 sh_elf_link_hash_newfunc
,
2251 sizeof (struct elf_sh_link_hash_entry
),
2258 ret
->fdpic_p
= fdpic_object_p (abfd
);
2260 return &ret
->root
.root
;
2264 sh_elf_omit_section_dynsym (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2265 struct bfd_link_info
*info
, asection
*p
)
2267 struct elf_sh_link_hash_table
*htab
= sh_elf_hash_table (info
);
2269 /* Non-FDPIC binaries do not need dynamic symbols for sections. */
2273 /* We need dynamic symbols for every section, since segments can
2274 relocate independently. */
2275 switch (elf_section_data (p
)->this_hdr
.sh_type
)
2279 /* If sh_type is yet undecided, assume it could be
2280 SHT_PROGBITS/SHT_NOBITS. */
2284 /* There shouldn't be section relative relocations
2285 against any other section. */
2291 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
2292 shortcuts to them in our hash table. */
2295 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
2297 struct elf_sh_link_hash_table
*htab
;
2299 if (! _bfd_elf_create_got_section (dynobj
, info
))
2302 htab
= sh_elf_hash_table (info
);
2306 htab
->sfuncdesc
= bfd_make_section_anyway_with_flags (dynobj
, ".got.funcdesc",
2307 (SEC_ALLOC
| SEC_LOAD
2310 | SEC_LINKER_CREATED
));
2311 if (htab
->sfuncdesc
== NULL
2312 || !bfd_set_section_alignment (htab
->sfuncdesc
, 2))
2315 htab
->srelfuncdesc
= bfd_make_section_anyway_with_flags (dynobj
,
2316 ".rela.got.funcdesc",
2317 (SEC_ALLOC
| SEC_LOAD
2320 | SEC_LINKER_CREATED
2322 if (htab
->srelfuncdesc
== NULL
2323 || !bfd_set_section_alignment (htab
->srelfuncdesc
, 2))
2326 /* Also create .rofixup. */
2327 htab
->srofixup
= bfd_make_section_anyway_with_flags (dynobj
, ".rofixup",
2328 (SEC_ALLOC
| SEC_LOAD
2331 | SEC_LINKER_CREATED
2333 if (htab
->srofixup
== NULL
2334 || !bfd_set_section_alignment (htab
->srofixup
, 2))
2340 /* Create dynamic sections when linking against a dynamic object. */
2343 sh_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
2345 struct elf_sh_link_hash_table
*htab
;
2346 flagword flags
, pltflags
;
2348 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2351 switch (bed
->s
->arch_size
)
2362 bfd_set_error (bfd_error_bad_value
);
2366 htab
= sh_elf_hash_table (info
);
2370 if (htab
->root
.dynamic_sections_created
)
2373 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2374 .rel[a].bss sections. */
2376 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
2377 | SEC_LINKER_CREATED
);
2380 pltflags
|= SEC_CODE
;
2381 if (bed
->plt_not_loaded
)
2382 pltflags
&= ~ (SEC_LOAD
| SEC_HAS_CONTENTS
);
2383 if (bed
->plt_readonly
)
2384 pltflags
|= SEC_READONLY
;
2386 s
= bfd_make_section_anyway_with_flags (abfd
, ".plt", pltflags
);
2387 htab
->root
.splt
= s
;
2389 || !bfd_set_section_alignment (s
, bed
->plt_alignment
))
2392 if (bed
->want_plt_sym
)
2394 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2396 struct elf_link_hash_entry
*h
;
2397 struct bfd_link_hash_entry
*bh
= NULL
;
2399 if (! (_bfd_generic_link_add_one_symbol
2400 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
2401 (bfd_vma
) 0, (const char *) NULL
, FALSE
,
2402 get_elf_backend_data (abfd
)->collect
, &bh
)))
2405 h
= (struct elf_link_hash_entry
*) bh
;
2407 h
->type
= STT_OBJECT
;
2408 htab
->root
.hplt
= h
;
2410 if (bfd_link_pic (info
)
2411 && ! bfd_elf_link_record_dynamic_symbol (info
, h
))
2415 s
= bfd_make_section_anyway_with_flags (abfd
,
2416 bed
->default_use_rela_p
2417 ? ".rela.plt" : ".rel.plt",
2418 flags
| SEC_READONLY
);
2419 htab
->root
.srelplt
= s
;
2421 || !bfd_set_section_alignment (s
, ptralign
))
2424 if (htab
->root
.sgot
== NULL
2425 && !create_got_section (abfd
, info
))
2428 if (bed
->want_dynbss
)
2430 /* The .dynbss section is a place to put symbols which are defined
2431 by dynamic objects, are referenced by regular objects, and are
2432 not functions. We must allocate space for them in the process
2433 image and use a R_*_COPY reloc to tell the dynamic linker to
2434 initialize them at run time. The linker script puts the .dynbss
2435 section into the .bss section of the final image. */
2436 s
= bfd_make_section_anyway_with_flags (abfd
, ".dynbss",
2437 SEC_ALLOC
| SEC_LINKER_CREATED
);
2442 /* The .rel[a].bss section holds copy relocs. This section is not
2443 normally needed. We need to create it here, though, so that the
2444 linker will map it to an output section. We can't just create it
2445 only if we need it, because we will not know whether we need it
2446 until we have seen all the input files, and the first time the
2447 main linker code calls BFD after examining all the input files
2448 (size_dynamic_sections) the input sections have already been
2449 mapped to the output sections. If the section turns out not to
2450 be needed, we can discard it later. We will never need this
2451 section when generating a shared object, since they do not use
2453 if (! bfd_link_pic (info
))
2455 s
= bfd_make_section_anyway_with_flags (abfd
,
2456 (bed
->default_use_rela_p
2457 ? ".rela.bss" : ".rel.bss"),
2458 flags
| SEC_READONLY
);
2461 || !bfd_set_section_alignment (s
, ptralign
))
2466 if (htab
->root
.target_os
== is_vxworks
)
2468 if (!elf_vxworks_create_dynamic_sections (abfd
, info
, &htab
->srelplt2
))
2475 /* Adjust a symbol defined by a dynamic object and referenced by a
2476 regular object. The current definition is in some section of the
2477 dynamic object, but we're not including those sections. We have to
2478 change the definition to something the rest of the link can
2482 sh_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
2483 struct elf_link_hash_entry
*h
)
2485 struct elf_sh_link_hash_table
*htab
;
2488 htab
= sh_elf_hash_table (info
);
2492 /* Make sure we know what is going on here. */
2493 BFD_ASSERT (htab
->root
.dynobj
!= NULL
2498 && !h
->def_regular
)));
2500 /* If this is a function, put it in the procedure linkage table. We
2501 will fill in the contents of the procedure linkage table later,
2502 when we know the address of the .got section. */
2503 if (h
->type
== STT_FUNC
2506 if (h
->plt
.refcount
<= 0
2507 || SYMBOL_CALLS_LOCAL (info
, h
)
2508 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
2509 && h
->root
.type
== bfd_link_hash_undefweak
))
2511 /* This case can occur if we saw a PLT reloc in an input
2512 file, but the symbol was never referred to by a dynamic
2513 object. In such a case, we don't actually need to build
2514 a procedure linkage table, and we can just do a REL32
2516 h
->plt
.offset
= (bfd_vma
) -1;
2523 h
->plt
.offset
= (bfd_vma
) -1;
2525 /* If this is a weak symbol, and there is a real definition, the
2526 processor independent code will have arranged for us to see the
2527 real definition first, and we can just use the same value. */
2528 if (h
->is_weakalias
)
2530 struct elf_link_hash_entry
*def
= weakdef (h
);
2531 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
2532 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
2533 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
2534 if (info
->nocopyreloc
)
2535 h
->non_got_ref
= def
->non_got_ref
;
2539 /* This is a reference to a symbol defined by a dynamic object which
2540 is not a function. */
2542 /* If we are creating a shared library, we must presume that the
2543 only references to the symbol are via the global offset table.
2544 For such cases we need not do anything here; the relocations will
2545 be handled correctly by relocate_section. */
2546 if (bfd_link_pic (info
))
2549 /* If there are no references to this symbol that do not use the
2550 GOT, we don't need to generate a copy reloc. */
2551 if (!h
->non_got_ref
)
2554 /* If -z nocopyreloc was given, we won't generate them either. */
2555 if (0 && info
->nocopyreloc
)
2561 /* If we don't find any dynamic relocs in read-only sections, then
2562 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
2563 if (0 && !_bfd_elf_readonly_dynrelocs (h
))
2569 /* We must allocate the symbol in our .dynbss section, which will
2570 become part of the .bss section of the executable. There will be
2571 an entry for this symbol in the .dynsym section. The dynamic
2572 object will contain position independent code, so all references
2573 from the dynamic object to this symbol will go through the global
2574 offset table. The dynamic linker will use the .dynsym entry to
2575 determine the address it must put in the global offset table, so
2576 both the dynamic object and the regular object will refer to the
2577 same memory location for the variable. */
2580 BFD_ASSERT (s
!= NULL
);
2582 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2583 copy the initial value out of the dynamic object and into the
2584 runtime process image. We need to remember the offset into the
2585 .rela.bss section we are going to use. */
2586 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
2590 srel
= htab
->srelbss
;
2591 BFD_ASSERT (srel
!= NULL
);
2592 srel
->size
+= sizeof (Elf32_External_Rela
);
2596 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
2599 /* Allocate space in .plt, .got and associated reloc sections for
2603 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
2605 struct bfd_link_info
*info
;
2606 struct elf_sh_link_hash_table
*htab
;
2607 struct elf_sh_link_hash_entry
*eh
;
2608 struct elf_dyn_relocs
*p
;
2610 if (h
->root
.type
== bfd_link_hash_indirect
)
2613 info
= (struct bfd_link_info
*) inf
;
2614 htab
= sh_elf_hash_table (info
);
2618 eh
= (struct elf_sh_link_hash_entry
*) h
;
2619 if ((h
->got
.refcount
> 0
2621 && eh
->gotplt_refcount
> 0)
2623 /* The symbol has been forced local, or we have some direct got refs,
2624 so treat all the gotplt refs as got refs. */
2625 h
->got
.refcount
+= eh
->gotplt_refcount
;
2626 if (h
->plt
.refcount
>= eh
->gotplt_refcount
)
2627 h
->plt
.refcount
-= eh
->gotplt_refcount
;
2630 if (htab
->root
.dynamic_sections_created
2631 && h
->plt
.refcount
> 0
2632 && (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2633 || h
->root
.type
!= bfd_link_hash_undefweak
))
2635 /* Make sure this symbol is output as a dynamic symbol.
2636 Undefined weak syms won't yet be marked as dynamic. */
2637 if (h
->dynindx
== -1
2638 && !h
->forced_local
)
2640 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2644 if (bfd_link_pic (info
)
2645 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h
))
2647 asection
*s
= htab
->root
.splt
;
2648 const struct elf_sh_plt_info
*plt_info
;
2650 /* If this is the first .plt entry, make room for the special
2653 s
->size
+= htab
->plt_info
->plt0_entry_size
;
2655 h
->plt
.offset
= s
->size
;
2657 /* If this symbol is not defined in a regular file, and we are
2658 not generating a shared library, then set the symbol to this
2659 location in the .plt. This is required to make function
2660 pointers compare as equal between the normal executable and
2661 the shared library. Skip this for FDPIC, since the
2662 function's address will be the address of the canonical
2663 function descriptor. */
2664 if (!htab
->fdpic_p
&& !bfd_link_pic (info
) && !h
->def_regular
)
2666 h
->root
.u
.def
.section
= s
;
2667 h
->root
.u
.def
.value
= h
->plt
.offset
;
2670 /* Make room for this entry. */
2671 plt_info
= htab
->plt_info
;
2672 if (plt_info
->short_plt
!= NULL
2673 && (get_plt_index (plt_info
->short_plt
, s
->size
) < MAX_SHORT_PLT
))
2674 plt_info
= plt_info
->short_plt
;
2675 s
->size
+= plt_info
->symbol_entry_size
;
2677 /* We also need to make an entry in the .got.plt section, which
2678 will be placed in the .got section by the linker script. */
2680 htab
->root
.sgotplt
->size
+= 4;
2682 htab
->root
.sgotplt
->size
+= 8;
2684 /* We also need to make an entry in the .rel.plt section. */
2685 htab
->root
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
2687 if (htab
->root
.target_os
== is_vxworks
&& !bfd_link_pic (info
))
2689 /* VxWorks executables have a second set of relocations
2690 for each PLT entry. They go in a separate relocation
2691 section, which is processed by the kernel loader. */
2693 /* There is a relocation for the initial PLT entry:
2694 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
2695 if (h
->plt
.offset
== htab
->plt_info
->plt0_entry_size
)
2696 htab
->srelplt2
->size
+= sizeof (Elf32_External_Rela
);
2698 /* There are two extra relocations for each subsequent
2699 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
2700 and an R_SH_DIR32 relocation for the PLT entry. */
2701 htab
->srelplt2
->size
+= sizeof (Elf32_External_Rela
) * 2;
2706 h
->plt
.offset
= (bfd_vma
) -1;
2712 h
->plt
.offset
= (bfd_vma
) -1;
2716 if (h
->got
.refcount
> 0)
2720 enum got_type got_type
= sh_elf_hash_entry (h
)->got_type
;
2722 /* Make sure this symbol is output as a dynamic symbol.
2723 Undefined weak syms won't yet be marked as dynamic. */
2724 if (h
->dynindx
== -1
2725 && !h
->forced_local
)
2727 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2731 s
= htab
->root
.sgot
;
2732 h
->got
.offset
= s
->size
;
2734 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
2735 if (got_type
== GOT_TLS_GD
)
2737 dyn
= htab
->root
.dynamic_sections_created
;
2740 /* No dynamic relocations required. */
2741 if (htab
->fdpic_p
&& !bfd_link_pic (info
)
2742 && h
->root
.type
!= bfd_link_hash_undefweak
2743 && (got_type
== GOT_NORMAL
|| got_type
== GOT_FUNCDESC
))
2744 htab
->srofixup
->size
+= 4;
2746 /* No dynamic relocations required when IE->LE conversion happens. */
2747 else if (got_type
== GOT_TLS_IE
2749 && !bfd_link_pic (info
))
2751 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
2752 R_SH_TLS_GD needs one if local symbol and two if global. */
2753 else if ((got_type
== GOT_TLS_GD
&& h
->dynindx
== -1)
2754 || got_type
== GOT_TLS_IE
)
2755 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2756 else if (got_type
== GOT_TLS_GD
)
2757 htab
->root
.srelgot
->size
+= 2 * sizeof (Elf32_External_Rela
);
2758 else if (got_type
== GOT_FUNCDESC
)
2760 if (!bfd_link_pic (info
) && SYMBOL_FUNCDESC_LOCAL (info
, h
))
2761 htab
->srofixup
->size
+= 4;
2763 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2765 else if ((ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2766 || h
->root
.type
!= bfd_link_hash_undefweak
)
2767 && (bfd_link_pic (info
)
2768 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, 0, h
)))
2769 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
2770 else if (htab
->fdpic_p
2771 && !bfd_link_pic (info
)
2772 && got_type
== GOT_NORMAL
2773 && (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2774 || h
->root
.type
!= bfd_link_hash_undefweak
))
2775 htab
->srofixup
->size
+= 4;
2778 h
->got
.offset
= (bfd_vma
) -1;
2780 /* Allocate space for any dynamic relocations to function
2781 descriptors, canonical or otherwise. We need to relocate the
2782 reference unless it resolves to zero, which only happens for
2783 undefined weak symbols (either non-default visibility, or when
2784 static linking). Any GOT slot is accounted for elsewhere. */
2785 if (eh
->abs_funcdesc_refcount
> 0
2786 && (h
->root
.type
!= bfd_link_hash_undefweak
2787 || (htab
->root
.dynamic_sections_created
2788 && ! SYMBOL_CALLS_LOCAL (info
, h
))))
2790 if (!bfd_link_pic (info
) && SYMBOL_FUNCDESC_LOCAL (info
, h
))
2791 htab
->srofixup
->size
+= eh
->abs_funcdesc_refcount
* 4;
2793 htab
->root
.srelgot
->size
2794 += eh
->abs_funcdesc_refcount
* sizeof (Elf32_External_Rela
);
2797 /* We must allocate a function descriptor if there are references to
2798 a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
2799 the dynamic linker isn't going to allocate it. None of this
2800 applies if we already created one in .got.plt, but if the
2801 canonical function descriptor can be in this object, there
2802 won't be a PLT entry at all. */
2803 if ((eh
->funcdesc
.refcount
> 0
2804 || (h
->got
.offset
!= MINUS_ONE
&& eh
->got_type
== GOT_FUNCDESC
))
2805 && h
->root
.type
!= bfd_link_hash_undefweak
2806 && SYMBOL_FUNCDESC_LOCAL (info
, h
))
2808 /* Make room for this function descriptor. */
2809 eh
->funcdesc
.offset
= htab
->sfuncdesc
->size
;
2810 htab
->sfuncdesc
->size
+= 8;
2812 /* We will need a relocation or two fixups to initialize the
2813 function descriptor, so allocate those too. */
2814 if (!bfd_link_pic (info
) && SYMBOL_CALLS_LOCAL (info
, h
))
2815 htab
->srofixup
->size
+= 8;
2817 htab
->srelfuncdesc
->size
+= sizeof (Elf32_External_Rela
);
2820 if (h
->dyn_relocs
== NULL
)
2823 /* In the shared -Bsymbolic case, discard space allocated for
2824 dynamic pc-relative relocs against symbols which turn out to be
2825 defined in regular objects. For the normal shared case, discard
2826 space for pc-relative relocs that have become local due to symbol
2827 visibility changes. */
2829 if (bfd_link_pic (info
))
2831 if (SYMBOL_CALLS_LOCAL (info
, h
))
2833 struct elf_dyn_relocs
**pp
;
2835 for (pp
= &h
->dyn_relocs
; (p
= *pp
) != NULL
; )
2837 p
->count
-= p
->pc_count
;
2846 if (htab
->root
.target_os
== is_vxworks
)
2848 struct elf_dyn_relocs
**pp
;
2850 for (pp
= &h
->dyn_relocs
; (p
= *pp
) != NULL
; )
2852 if (strcmp (p
->sec
->output_section
->name
, ".tls_vars") == 0)
2859 /* Also discard relocs on undefined weak syms with non-default
2861 if (h
->dyn_relocs
!= NULL
2862 && h
->root
.type
== bfd_link_hash_undefweak
)
2864 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
2865 || UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
2866 h
->dyn_relocs
= NULL
;
2868 /* Make sure undefined weak symbols are output as a dynamic
2870 else if (h
->dynindx
== -1
2871 && !h
->forced_local
)
2873 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2880 /* For the non-shared case, discard space for relocs against
2881 symbols which turn out to need copy relocs or are not
2887 || (htab
->root
.dynamic_sections_created
2888 && (h
->root
.type
== bfd_link_hash_undefweak
2889 || h
->root
.type
== bfd_link_hash_undefined
))))
2891 /* Make sure this symbol is output as a dynamic symbol.
2892 Undefined weak syms won't yet be marked as dynamic. */
2893 if (h
->dynindx
== -1
2894 && !h
->forced_local
)
2896 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2900 /* If that succeeded, we know we'll be keeping all the
2902 if (h
->dynindx
!= -1)
2906 h
->dyn_relocs
= NULL
;
2911 /* Finally, allocate space. */
2912 for (p
= h
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2914 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
2915 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
2917 /* If we need relocations, we do not need fixups. */
2918 if (htab
->fdpic_p
&& !bfd_link_pic (info
))
2919 htab
->srofixup
->size
-= 4 * (p
->count
- p
->pc_count
);
2925 /* This function is called after all the input files have been read,
2926 and the input sections have been assigned to output sections.
2927 It's a convenient place to determine the PLT style. */
2930 sh_elf_always_size_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
2932 sh_elf_hash_table (info
)->plt_info
= get_plt_info (output_bfd
,
2933 bfd_link_pic (info
));
2935 if (sh_elf_hash_table (info
)->fdpic_p
&& !bfd_link_relocatable (info
)
2936 && !bfd_elf_stack_segment_size (output_bfd
, info
,
2937 "__stacksize", DEFAULT_STACK_SIZE
))
2942 /* Set the sizes of the dynamic sections. */
2945 sh_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2946 struct bfd_link_info
*info
)
2948 struct elf_sh_link_hash_table
*htab
;
2954 htab
= sh_elf_hash_table (info
);
2958 dynobj
= htab
->root
.dynobj
;
2959 BFD_ASSERT (dynobj
!= NULL
);
2961 if (htab
->root
.dynamic_sections_created
)
2963 /* Set the contents of the .interp section to the interpreter. */
2964 if (bfd_link_executable (info
) && !info
->nointerp
)
2966 s
= bfd_get_linker_section (dynobj
, ".interp");
2967 BFD_ASSERT (s
!= NULL
);
2968 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2969 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2973 /* Set up .got offsets for local syms, and space for local dynamic
2975 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
2977 bfd_signed_vma
*local_got
;
2978 bfd_signed_vma
*end_local_got
;
2979 union gotref
*local_funcdesc
, *end_local_funcdesc
;
2980 char *local_got_type
;
2981 bfd_size_type locsymcount
;
2982 Elf_Internal_Shdr
*symtab_hdr
;
2985 if (! is_sh_elf (ibfd
))
2988 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2990 struct elf_dyn_relocs
*p
;
2992 for (p
= ((struct elf_dyn_relocs
*)
2993 elf_section_data (s
)->local_dynrel
);
2997 if (! bfd_is_abs_section (p
->sec
)
2998 && bfd_is_abs_section (p
->sec
->output_section
))
3000 /* Input section has been discarded, either because
3001 it is a copy of a linkonce section or due to
3002 linker script /DISCARD/, so we'll be discarding
3005 else if (htab
->root
.target_os
== is_vxworks
3006 && strcmp (p
->sec
->output_section
->name
,
3009 /* Relocations in vxworks .tls_vars sections are
3010 handled specially by the loader. */
3012 else if (p
->count
!= 0)
3014 srel
= elf_section_data (p
->sec
)->sreloc
;
3015 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
3016 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
3018 info
->flags
|= DF_TEXTREL
;
3019 info
->callbacks
->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"),
3020 p
->sec
->owner
, p
->sec
);
3023 /* If we need relocations, we do not need fixups. */
3024 if (htab
->fdpic_p
&& !bfd_link_pic (info
))
3025 htab
->srofixup
->size
-= 4 * (p
->count
- p
->pc_count
);
3030 symtab_hdr
= &elf_symtab_hdr (ibfd
);
3031 locsymcount
= symtab_hdr
->sh_info
;
3032 s
= htab
->root
.sgot
;
3033 srel
= htab
->root
.srelgot
;
3035 local_got
= elf_local_got_refcounts (ibfd
);
3038 end_local_got
= local_got
+ locsymcount
;
3039 local_got_type
= sh_elf_local_got_type (ibfd
);
3040 local_funcdesc
= sh_elf_local_funcdesc (ibfd
);
3041 for (; local_got
< end_local_got
; ++local_got
)
3045 *local_got
= s
->size
;
3047 if (*local_got_type
== GOT_TLS_GD
)
3049 if (bfd_link_pic (info
))
3050 srel
->size
+= sizeof (Elf32_External_Rela
);
3052 htab
->srofixup
->size
+= 4;
3054 if (*local_got_type
== GOT_FUNCDESC
)
3056 if (local_funcdesc
== NULL
)
3060 size
= locsymcount
* sizeof (union gotref
);
3061 local_funcdesc
= (union gotref
*) bfd_zalloc (ibfd
,
3063 if (local_funcdesc
== NULL
)
3065 sh_elf_local_funcdesc (ibfd
) = local_funcdesc
;
3066 local_funcdesc
+= (local_got
3067 - elf_local_got_refcounts (ibfd
));
3069 local_funcdesc
->refcount
++;
3074 *local_got
= (bfd_vma
) -1;
3079 local_funcdesc
= sh_elf_local_funcdesc (ibfd
);
3082 end_local_funcdesc
= local_funcdesc
+ locsymcount
;
3084 for (; local_funcdesc
< end_local_funcdesc
; ++local_funcdesc
)
3086 if (local_funcdesc
->refcount
> 0)
3088 local_funcdesc
->offset
= htab
->sfuncdesc
->size
;
3089 htab
->sfuncdesc
->size
+= 8;
3090 if (!bfd_link_pic (info
))
3091 htab
->srofixup
->size
+= 8;
3093 htab
->srelfuncdesc
->size
+= sizeof (Elf32_External_Rela
);
3096 local_funcdesc
->offset
= MINUS_ONE
;
3102 if (htab
->tls_ldm_got
.refcount
> 0)
3104 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3106 htab
->tls_ldm_got
.offset
= htab
->root
.sgot
->size
;
3107 htab
->root
.sgot
->size
+= 8;
3108 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
3111 htab
->tls_ldm_got
.offset
= -1;
3113 /* Only the reserved entries should be present. For FDPIC, they go at
3114 the end of .got.plt. */
3117 BFD_ASSERT (htab
->root
.sgotplt
&& htab
->root
.sgotplt
->size
== 12);
3118 htab
->root
.sgotplt
->size
= 0;
3121 /* Allocate global sym .plt and .got entries, and space for global
3122 sym dynamic relocs. */
3123 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, info
);
3125 /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
3126 end of the FDPIC .got.plt. */
3129 htab
->root
.hgot
->root
.u
.def
.value
= htab
->root
.sgotplt
->size
;
3130 htab
->root
.sgotplt
->size
+= 12;
3133 /* At the very end of the .rofixup section is a pointer to the GOT. */
3134 if (htab
->fdpic_p
&& htab
->srofixup
!= NULL
)
3135 htab
->srofixup
->size
+= 4;
3137 /* We now have determined the sizes of the various dynamic sections.
3138 Allocate memory for them. */
3140 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3142 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3145 if (s
== htab
->root
.splt
3146 || s
== htab
->root
.sgot
3147 || s
== htab
->root
.sgotplt
3148 || s
== htab
->sfuncdesc
3149 || s
== htab
->srofixup
3150 || s
== htab
->sdynbss
)
3152 /* Strip this section if we don't need it; see the
3155 else if (CONST_STRNEQ (bfd_section_name (s
), ".rela"))
3157 if (s
->size
!= 0 && s
!= htab
->root
.srelplt
&& s
!= htab
->srelplt2
)
3160 /* We use the reloc_count field as a counter if we need
3161 to copy relocs into the output file. */
3166 /* It's not one of our sections, so don't allocate space. */
3172 /* If we don't need this section, strip it from the
3173 output file. This is mostly to handle .rela.bss and
3174 .rela.plt. We must create both sections in
3175 create_dynamic_sections, because they must be created
3176 before the linker maps input sections to output
3177 sections. The linker does that before
3178 adjust_dynamic_symbol is called, and it is that
3179 function which decides whether anything needs to go
3180 into these sections. */
3182 s
->flags
|= SEC_EXCLUDE
;
3186 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
3189 /* Allocate memory for the section contents. We use bfd_zalloc
3190 here in case unused entries are not reclaimed before the
3191 section's contents are written out. This should not happen,
3192 but this way if it does, we get a R_SH_NONE reloc instead
3194 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
3195 if (s
->contents
== NULL
)
3199 if (htab
->root
.dynamic_sections_created
)
3201 /* Add some entries to the .dynamic section. We fill in the
3202 values later, in sh_elf_finish_dynamic_sections, but we
3203 must add the entries now so that we get the correct size for
3204 the .dynamic section. The DT_DEBUG entry is filled in by the
3205 dynamic linker and used by the debugger. */
3206 #define add_dynamic_entry(TAG, VAL) \
3207 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3209 if (bfd_link_executable (info
))
3211 if (! add_dynamic_entry (DT_DEBUG
, 0))
3215 if (htab
->root
.splt
->size
!= 0)
3217 if (! add_dynamic_entry (DT_PLTGOT
, 0)
3218 || ! add_dynamic_entry (DT_PLTRELSZ
, 0)
3219 || ! add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3220 || ! add_dynamic_entry (DT_JMPREL
, 0))
3223 else if ((elf_elfheader (output_bfd
)->e_flags
& EF_SH_FDPIC
))
3225 if (! add_dynamic_entry (DT_PLTGOT
, 0))
3231 if (! add_dynamic_entry (DT_RELA
, 0)
3232 || ! add_dynamic_entry (DT_RELASZ
, 0)
3233 || ! add_dynamic_entry (DT_RELAENT
,
3234 sizeof (Elf32_External_Rela
)))
3237 /* If any dynamic relocs apply to a read-only section,
3238 then we need a DT_TEXTREL entry. */
3239 if ((info
->flags
& DF_TEXTREL
) == 0)
3240 elf_link_hash_traverse (&htab
->root
,
3241 _bfd_elf_maybe_set_textrel
, info
);
3243 if ((info
->flags
& DF_TEXTREL
) != 0)
3245 if (! add_dynamic_entry (DT_TEXTREL
, 0))
3249 if (htab
->root
.target_os
== is_vxworks
3250 && !elf_vxworks_add_dynamic_entries (output_bfd
, info
))
3253 #undef add_dynamic_entry
3258 /* Add a dynamic relocation to the SRELOC section. */
3260 inline static bfd_vma
3261 sh_elf_add_dyn_reloc (bfd
*output_bfd
, asection
*sreloc
, bfd_vma offset
,
3262 int reloc_type
, long dynindx
, bfd_vma addend
)
3264 Elf_Internal_Rela outrel
;
3265 bfd_vma reloc_offset
;
3267 outrel
.r_offset
= offset
;
3268 outrel
.r_info
= ELF32_R_INFO (dynindx
, reloc_type
);
3269 outrel
.r_addend
= addend
;
3271 reloc_offset
= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
3272 BFD_ASSERT (reloc_offset
< sreloc
->size
);
3273 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,
3274 sreloc
->contents
+ reloc_offset
);
3275 sreloc
->reloc_count
++;
3277 return reloc_offset
;
3280 /* Add an FDPIC read-only fixup. */
3283 sh_elf_add_rofixup (bfd
*output_bfd
, asection
*srofixup
, bfd_vma offset
)
3285 bfd_vma fixup_offset
;
3287 fixup_offset
= srofixup
->reloc_count
++ * 4;
3288 BFD_ASSERT (fixup_offset
< srofixup
->size
);
3289 bfd_put_32 (output_bfd
, offset
, srofixup
->contents
+ fixup_offset
);
3292 /* Return the offset of the generated .got section from the
3293 _GLOBAL_OFFSET_TABLE_ symbol. */
3295 static bfd_signed_vma
3296 sh_elf_got_offset (struct elf_sh_link_hash_table
*htab
)
3298 return (htab
->root
.sgot
->output_offset
- htab
->root
.sgotplt
->output_offset
3299 - htab
->root
.hgot
->root
.u
.def
.value
);
3302 /* Find the segment number in which OSEC, and output section, is
3306 sh_elf_osec_to_segment (bfd
*output_bfd
, asection
*osec
)
3308 Elf_Internal_Phdr
*p
= NULL
;
3310 if (output_bfd
->xvec
->flavour
== bfd_target_elf_flavour
3311 /* PR ld/17110: Do not look for output segments in an input bfd. */
3312 && output_bfd
->direction
!= read_direction
)
3313 p
= _bfd_elf_find_segment_containing_section (output_bfd
, osec
);
3315 /* FIXME: Nothing ever says what this index is relative to. The kernel
3316 supplies data in terms of the number of load segments but this is
3317 a phdr index and the first phdr may not be a load segment. */
3318 return (p
!= NULL
) ? p
- elf_tdata (output_bfd
)->phdr
: -1;
3322 sh_elf_osec_readonly_p (bfd
*output_bfd
, asection
*osec
)
3324 unsigned seg
= sh_elf_osec_to_segment (output_bfd
, osec
);
3326 return (seg
!= (unsigned) -1
3327 && ! (elf_tdata (output_bfd
)->phdr
[seg
].p_flags
& PF_W
));
3330 /* Generate the initial contents of a local function descriptor, along
3331 with any relocations or fixups required. */
3333 sh_elf_initialize_funcdesc (bfd
*output_bfd
,
3334 struct bfd_link_info
*info
,
3335 struct elf_link_hash_entry
*h
,
3340 struct elf_sh_link_hash_table
*htab
;
3344 htab
= sh_elf_hash_table (info
);
3346 /* FIXME: The ABI says that the offset to the function goes in the
3347 descriptor, along with the segment index. We're RELA, so it could
3348 go in the reloc instead... */
3350 if (h
!= NULL
&& SYMBOL_CALLS_LOCAL (info
, h
))
3352 section
= h
->root
.u
.def
.section
;
3353 value
= h
->root
.u
.def
.value
;
3356 if (h
== NULL
|| SYMBOL_CALLS_LOCAL (info
, h
))
3358 dynindx
= elf_section_data (section
->output_section
)->dynindx
;
3359 addr
= value
+ section
->output_offset
;
3360 seg
= sh_elf_osec_to_segment (output_bfd
, section
->output_section
);
3364 BFD_ASSERT (h
->dynindx
!= -1);
3365 dynindx
= h
->dynindx
;
3369 if (!bfd_link_pic (info
) && SYMBOL_CALLS_LOCAL (info
, h
))
3371 if (h
== NULL
|| h
->root
.type
!= bfd_link_hash_undefweak
)
3373 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
3375 + htab
->sfuncdesc
->output_section
->vma
3376 + htab
->sfuncdesc
->output_offset
);
3377 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
3379 + htab
->sfuncdesc
->output_section
->vma
3380 + htab
->sfuncdesc
->output_offset
);
3383 /* There are no dynamic relocations so fill in the final
3384 address and gp value (barring fixups). */
3385 addr
+= section
->output_section
->vma
;
3386 seg
= htab
->root
.hgot
->root
.u
.def
.value
3387 + htab
->root
.hgot
->root
.u
.def
.section
->output_section
->vma
3388 + htab
->root
.hgot
->root
.u
.def
.section
->output_offset
;
3391 sh_elf_add_dyn_reloc (output_bfd
, htab
->srelfuncdesc
,
3393 + htab
->sfuncdesc
->output_section
->vma
3394 + htab
->sfuncdesc
->output_offset
,
3395 R_SH_FUNCDESC_VALUE
, dynindx
, 0);
3397 bfd_put_32 (output_bfd
, addr
, htab
->sfuncdesc
->contents
+ offset
);
3398 bfd_put_32 (output_bfd
, seg
, htab
->sfuncdesc
->contents
+ offset
+ 4);
3403 /* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
3404 VALUE is the field's value. Return bfd_reloc_ok if successful or an error
3407 static bfd_reloc_status_type
3408 install_movi20_field (bfd
*output_bfd
, unsigned long relocation
,
3409 bfd
*input_bfd
, asection
*input_section
,
3410 bfd_byte
*contents
, bfd_vma offset
)
3412 unsigned long cur_val
;
3414 bfd_reloc_status_type r
;
3416 if (offset
> bfd_get_section_limit (input_bfd
, input_section
))
3417 return bfd_reloc_outofrange
;
3419 r
= bfd_check_overflow (complain_overflow_signed
, 20, 0,
3420 bfd_arch_bits_per_address (input_bfd
), relocation
);
3421 if (r
!= bfd_reloc_ok
)
3424 addr
= contents
+ offset
;
3425 cur_val
= bfd_get_16 (output_bfd
, addr
);
3426 bfd_put_16 (output_bfd
, cur_val
| ((relocation
& 0xf0000) >> 12), addr
);
3427 bfd_put_16 (output_bfd
, relocation
& 0xffff, addr
+ 2);
3429 return bfd_reloc_ok
;
3432 /* Relocate an SH ELF section. */
3435 sh_elf_relocate_section (bfd
*output_bfd
, struct bfd_link_info
*info
,
3436 bfd
*input_bfd
, asection
*input_section
,
3437 bfd_byte
*contents
, Elf_Internal_Rela
*relocs
,
3438 Elf_Internal_Sym
*local_syms
,
3439 asection
**local_sections
)
3441 struct elf_sh_link_hash_table
*htab
;
3442 Elf_Internal_Shdr
*symtab_hdr
;
3443 struct elf_link_hash_entry
**sym_hashes
;
3444 Elf_Internal_Rela
*rel
, *relend
;
3445 bfd_vma
*local_got_offsets
;
3446 asection
*sgot
= NULL
;
3447 asection
*sgotplt
= NULL
;
3448 asection
*splt
= NULL
;
3449 asection
*sreloc
= NULL
;
3450 asection
*srelgot
= NULL
;
3451 bfd_boolean is_vxworks_tls
;
3452 unsigned isec_segment
, got_segment
, plt_segment
, check_segment
[2];
3453 bfd_boolean fdpic_p
= FALSE
;
3455 if (!is_sh_elf (input_bfd
))
3457 bfd_set_error (bfd_error_wrong_format
);
3461 htab
= sh_elf_hash_table (info
);
3464 sgot
= htab
->root
.sgot
;
3465 sgotplt
= htab
->root
.sgotplt
;
3466 srelgot
= htab
->root
.srelgot
;
3467 splt
= htab
->root
.splt
;
3468 fdpic_p
= htab
->fdpic_p
;
3470 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
3471 sym_hashes
= elf_sym_hashes (input_bfd
);
3472 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3474 isec_segment
= sh_elf_osec_to_segment (output_bfd
,
3475 input_section
->output_section
);
3476 if (fdpic_p
&& sgot
)
3477 got_segment
= sh_elf_osec_to_segment (output_bfd
,
3478 sgot
->output_section
);
3481 if (fdpic_p
&& splt
)
3482 plt_segment
= sh_elf_osec_to_segment (output_bfd
,
3483 splt
->output_section
);
3487 /* We have to handle relocations in vxworks .tls_vars sections
3488 specially, because the dynamic loader is 'weird'. */
3489 is_vxworks_tls
= (htab
&& htab
->root
.target_os
== is_vxworks
&& bfd_link_pic (info
)
3490 && !strcmp (input_section
->output_section
->name
,
3494 relend
= relocs
+ input_section
->reloc_count
;
3495 for (; rel
< relend
; rel
++)
3498 reloc_howto_type
*howto
;
3499 unsigned long r_symndx
;
3500 Elf_Internal_Sym
*sym
;
3502 struct elf_link_hash_entry
*h
;
3504 bfd_vma addend
= (bfd_vma
) 0;
3505 bfd_reloc_status_type r
;
3507 enum got_type got_type
;
3508 const char *symname
= NULL
;
3509 bfd_boolean resolved_to_zero
;
3511 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3513 r_type
= ELF32_R_TYPE (rel
->r_info
);
3515 /* Many of the relocs are only used for relaxing, and are
3516 handled entirely by the relaxation code. */
3517 if (r_type
>= (int) R_SH_GNU_VTINHERIT
3518 && r_type
<= (int) R_SH_LABEL
)
3520 if (r_type
== (int) R_SH_NONE
)
3524 || r_type
>= R_SH_max
3525 || (r_type
>= (int) R_SH_FIRST_INVALID_RELOC
3526 && r_type
<= (int) R_SH_LAST_INVALID_RELOC
)
3527 || (r_type
>= (int) R_SH_FIRST_INVALID_RELOC_2
3528 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_2
)
3529 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_3
3530 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_3
)
3531 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_4
3532 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_4
)
3533 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_5
3534 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_5
)
3535 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_6
3536 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_6
))
3538 bfd_set_error (bfd_error_bad_value
);
3542 howto
= get_howto_table (output_bfd
) + r_type
;
3544 /* For relocs that aren't partial_inplace, we get the addend from
3546 if (! howto
->partial_inplace
)
3547 addend
= rel
->r_addend
;
3549 resolved_to_zero
= FALSE
;
3553 check_segment
[0] = -1;
3554 check_segment
[1] = -1;
3555 if (r_symndx
< symtab_hdr
->sh_info
)
3557 sym
= local_syms
+ r_symndx
;
3558 sec
= local_sections
[r_symndx
];
3560 symname
= bfd_elf_string_from_elf_section
3561 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
3562 if (symname
== NULL
|| *symname
== '\0')
3563 symname
= bfd_section_name (sec
);
3565 relocation
= (sec
->output_section
->vma
3566 + sec
->output_offset
3569 if (sec
!= NULL
&& discarded_section (sec
))
3570 /* Handled below. */
3572 else if (bfd_link_relocatable (info
))
3574 /* This is a relocatable link. We don't have to change
3575 anything, unless the reloc is against a section symbol,
3576 in which case we have to adjust according to where the
3577 section symbol winds up in the output section. */
3578 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
3580 if (! howto
->partial_inplace
)
3582 /* For relocations with the addend in the
3583 relocation, we need just to update the addend.
3584 All real relocs are of type partial_inplace; this
3585 code is mostly for completeness. */
3586 rel
->r_addend
+= sec
->output_offset
;
3591 /* Relocs of type partial_inplace need to pick up the
3592 contents in the contents and add the offset resulting
3593 from the changed location of the section symbol.
3594 Using _bfd_final_link_relocate (e.g. goto
3595 final_link_relocate) here would be wrong, because
3596 relocations marked pc_relative would get the current
3597 location subtracted, and we must only do that at the
3599 r
= _bfd_relocate_contents (howto
, input_bfd
,
3602 contents
+ rel
->r_offset
);
3603 goto relocation_done
;
3608 else if (! howto
->partial_inplace
)
3610 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
3611 addend
= rel
->r_addend
;
3613 else if ((sec
->flags
& SEC_MERGE
)
3614 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
3618 if (howto
->rightshift
|| howto
->src_mask
!= 0xffffffff)
3621 /* xgettext:c-format */
3622 (_("%pB(%pA+%#" PRIx64
"): "
3623 "%s relocation against SEC_MERGE section"),
3624 input_bfd
, input_section
,
3625 (uint64_t) rel
->r_offset
, howto
->name
);
3629 addend
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3632 _bfd_elf_rel_local_sym (output_bfd
, sym
, &msec
, addend
)
3634 addend
+= msec
->output_section
->vma
+ msec
->output_offset
;
3635 bfd_put_32 (input_bfd
, addend
, contents
+ rel
->r_offset
);
3641 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
3644 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3645 symname
= h
->root
.root
.string
;
3646 while (h
->root
.type
== bfd_link_hash_indirect
3647 || h
->root
.type
== bfd_link_hash_warning
)
3648 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3649 if (h
->root
.type
== bfd_link_hash_defined
3650 || h
->root
.type
== bfd_link_hash_defweak
)
3654 dyn
= htab
? htab
->root
.dynamic_sections_created
: FALSE
;
3655 sec
= h
->root
.u
.def
.section
;
3656 /* In these cases, we don't need the relocation value.
3657 We check specially because in some obscure cases
3658 sec->output_section will be NULL. */
3659 if (r_type
== R_SH_GOTPC
3660 || r_type
== R_SH_GOTPC_LOW16
3661 || r_type
== R_SH_GOTPC_MEDLOW16
3662 || r_type
== R_SH_GOTPC_MEDHI16
3663 || r_type
== R_SH_GOTPC_HI16
3664 || ((r_type
== R_SH_PLT32
3665 || r_type
== R_SH_PLT_LOW16
3666 || r_type
== R_SH_PLT_MEDLOW16
3667 || r_type
== R_SH_PLT_MEDHI16
3668 || r_type
== R_SH_PLT_HI16
)
3669 && h
->plt
.offset
!= (bfd_vma
) -1)
3670 || ((r_type
== R_SH_GOT32
3671 || r_type
== R_SH_GOT20
3672 || r_type
== R_SH_GOTFUNCDESC
3673 || r_type
== R_SH_GOTFUNCDESC20
3674 || r_type
== R_SH_GOTOFFFUNCDESC
3675 || r_type
== R_SH_GOTOFFFUNCDESC20
3676 || r_type
== R_SH_FUNCDESC
3677 || r_type
== R_SH_GOT_LOW16
3678 || r_type
== R_SH_GOT_MEDLOW16
3679 || r_type
== R_SH_GOT_MEDHI16
3680 || r_type
== R_SH_GOT_HI16
)
3681 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
3682 bfd_link_pic (info
),
3684 && (! bfd_link_pic (info
)
3685 || (! info
->symbolic
&& h
->dynindx
!= -1)
3686 || !h
->def_regular
))
3687 /* The cases above are those in which relocation is
3688 overwritten in the switch block below. The cases
3689 below are those in which we must defer relocation
3690 to run-time, because we can't resolve absolute
3691 addresses when creating a shared library. */
3692 || (bfd_link_pic (info
)
3693 && ((! info
->symbolic
&& h
->dynindx
!= -1)
3695 && ((r_type
== R_SH_DIR32
3696 && !h
->forced_local
)
3697 || (r_type
== R_SH_REL32
3698 && !SYMBOL_CALLS_LOCAL (info
, h
)))
3699 && ((input_section
->flags
& SEC_ALLOC
) != 0
3700 /* DWARF will emit R_SH_DIR32 relocations in its
3701 sections against symbols defined externally
3702 in shared libraries. We can't do anything
3704 || ((input_section
->flags
& SEC_DEBUGGING
) != 0
3705 && h
->def_dynamic
)))
3706 /* Dynamic relocs are not propagated for SEC_DEBUGGING
3707 sections because such sections are not SEC_ALLOC and
3708 thus ld.so will not process them. */
3709 || (sec
->output_section
== NULL
3710 && ((input_section
->flags
& SEC_DEBUGGING
) != 0
3712 || (sec
->output_section
== NULL
3713 && (sh_elf_hash_entry (h
)->got_type
== GOT_TLS_IE
3714 || sh_elf_hash_entry (h
)->got_type
== GOT_TLS_GD
)))
3716 else if (sec
->output_section
!= NULL
)
3717 relocation
= (h
->root
.u
.def
.value
3718 + sec
->output_section
->vma
3719 + sec
->output_offset
);
3720 else if (!bfd_link_relocatable (info
)
3721 && (_bfd_elf_section_offset (output_bfd
, info
,
3727 /* xgettext:c-format */
3728 (_("%pB(%pA+%#" PRIx64
"): "
3729 "unresolvable %s relocation against symbol `%s'"),
3732 (uint64_t) rel
->r_offset
,
3734 h
->root
.root
.string
);
3738 else if (h
->root
.type
== bfd_link_hash_undefweak
)
3739 resolved_to_zero
= UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
);
3740 else if (info
->unresolved_syms_in_objects
== RM_IGNORE
3741 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3743 else if (!bfd_link_relocatable (info
))
3744 info
->callbacks
->undefined_symbol
3745 (info
, h
->root
.root
.string
, input_bfd
, input_section
,
3747 (info
->unresolved_syms_in_objects
== RM_DIAGNOSE
3748 && !info
->warn_unresolved_syms
)
3749 || ELF_ST_VISIBILITY (h
->other
));
3752 if (sec
!= NULL
&& discarded_section (sec
))
3753 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
3754 rel
, 1, relend
, howto
, 0, contents
);
3756 if (bfd_link_relocatable (info
))
3759 /* Check for inter-segment relocations in FDPIC files. Most
3760 relocations connect the relocation site to the location of
3761 the target symbol, but there are some exceptions below. */
3762 check_segment
[0] = isec_segment
;
3764 check_segment
[1] = sh_elf_osec_to_segment (output_bfd
,
3765 sec
->output_section
);
3767 check_segment
[1] = -1;
3769 switch ((int) r_type
)
3771 final_link_relocate
:
3772 /* COFF relocs don't use the addend. The addend is used for
3773 R_SH_DIR32 to be compatible with other compilers. */
3774 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3775 contents
, rel
->r_offset
,
3776 relocation
, addend
);
3780 goto final_link_relocate
;
3785 /* If the reloc is against the start of this section, then
3786 the assembler has already taken care of it and the reloc
3787 is here only to assist in relaxing. If the reloc is not
3788 against the start of this section, then it's against an
3789 external symbol and we must deal with it ourselves. */
3790 if (input_section
->output_section
->vma
+ input_section
->output_offset
3793 int disp
= (relocation
3794 - input_section
->output_section
->vma
3795 - input_section
->output_offset
3801 case R_SH_DIR8WPZ
: mask
= 1; break;
3802 case R_SH_DIR8WPL
: mask
= 3; break;
3803 default: mask
= 0; break;
3808 /* xgettext:c-format */
3809 (_("%pB: %#" PRIx64
": fatal: "
3810 "unaligned branch target for relax-support relocation"),
3811 input_section
->owner
,
3812 (uint64_t) rel
->r_offset
);
3813 bfd_set_error (bfd_error_bad_value
);
3817 goto final_link_relocate
;
3823 bfd_set_error (bfd_error_bad_value
);
3831 goto final_link_relocate
;
3838 /* xgettext:c-format */
3839 (_("%pB: %#" PRIx64
": fatal: "
3840 "unaligned %s relocation %#" PRIx64
),
3841 input_section
->owner
, (uint64_t) rel
->r_offset
,
3842 howto
->name
, (uint64_t) relocation
);
3843 bfd_set_error (bfd_error_bad_value
);
3846 goto final_link_relocate
;
3854 /* xgettext:c-format */
3855 (_("%pB: %#" PRIx64
": fatal: "
3856 "unaligned %s relocation %#" PRIx64
""),
3857 input_section
->owner
,
3858 (uint64_t) rel
->r_offset
, howto
->name
,
3859 (uint64_t) relocation
);
3860 bfd_set_error (bfd_error_bad_value
);
3863 goto final_link_relocate
;
3866 if ((signed int)relocation
< -32
3867 || (signed int)relocation
> 32)
3870 /* xgettext:c-format */
3871 (_("%pB: %#" PRIx64
": fatal: R_SH_PSHA relocation %" PRId64
3872 " not in range -32..32"),
3873 input_section
->owner
,
3874 (uint64_t) rel
->r_offset
,
3875 (int64_t) relocation
);
3876 bfd_set_error (bfd_error_bad_value
);
3879 goto final_link_relocate
;
3882 if ((signed int)relocation
< -16
3883 || (signed int)relocation
> 16)
3886 /* xgettext:c-format */
3887 (_("%pB: %#" PRIx64
": fatal: R_SH_PSHL relocation %" PRId64
3888 " not in range -32..32"),
3889 input_section
->owner
,
3890 (uint64_t) rel
->r_offset
,
3891 (int64_t) relocation
);
3892 bfd_set_error (bfd_error_bad_value
);
3895 goto final_link_relocate
;
3899 if (bfd_link_pic (info
)
3901 || (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
3902 && !resolved_to_zero
)
3903 || h
->root
.type
!= bfd_link_hash_undefweak
)
3904 && r_symndx
!= STN_UNDEF
3905 && (input_section
->flags
& SEC_ALLOC
) != 0
3907 && (r_type
== R_SH_DIR32
3908 || !SYMBOL_CALLS_LOCAL (info
, h
)))
3910 Elf_Internal_Rela outrel
;
3912 bfd_boolean skip
, relocate
;
3914 /* When generating a shared object, these relocations
3915 are copied into the output file to be resolved at run
3920 sreloc
= _bfd_elf_get_dynamic_reloc_section
3921 (input_bfd
, input_section
, /*rela?*/ TRUE
);
3930 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3932 if (outrel
.r_offset
== (bfd_vma
) -1)
3934 else if (outrel
.r_offset
== (bfd_vma
) -2)
3935 skip
= TRUE
, relocate
= TRUE
;
3936 outrel
.r_offset
+= (input_section
->output_section
->vma
3937 + input_section
->output_offset
);
3940 memset (&outrel
, 0, sizeof outrel
);
3941 else if (r_type
== R_SH_REL32
)
3943 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
3944 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_REL32
);
3946 = (howto
->partial_inplace
3947 ? bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
)
3952 || ((info
->symbolic
|| h
->dynindx
== -1)
3953 && h
->def_regular
)))
3957 BFD_ASSERT (sec
!= NULL
);
3958 BFD_ASSERT (sec
->output_section
!= NULL
);
3959 dynindx
= elf_section_data (sec
->output_section
)->dynindx
;
3960 outrel
.r_info
= ELF32_R_INFO (dynindx
, R_SH_DIR32
);
3961 outrel
.r_addend
= relocation
;
3963 += (howto
->partial_inplace
3964 ? bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
)
3966 outrel
.r_addend
-= sec
->output_section
->vma
;
3970 /* h->dynindx may be -1 if this symbol was marked to
3973 || ((info
->symbolic
|| h
->dynindx
== -1)
3976 relocate
= howto
->partial_inplace
;
3977 outrel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
3981 BFD_ASSERT (h
->dynindx
!= -1);
3982 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_DIR32
);
3984 outrel
.r_addend
= relocation
;
3986 += (howto
->partial_inplace
3987 ? bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
)
3991 loc
= sreloc
->contents
;
3992 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3993 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3995 check_segment
[0] = check_segment
[1] = -1;
3997 /* If this reloc is against an external symbol, we do
3998 not want to fiddle with the addend. Otherwise, we
3999 need to include the symbol value so that it becomes
4000 an addend for the dynamic reloc. */
4004 else if (fdpic_p
&& !bfd_link_pic (info
)
4005 && r_type
== R_SH_DIR32
4006 && (input_section
->flags
& SEC_ALLOC
) != 0)
4012 if (sh_elf_osec_readonly_p (output_bfd
,
4013 input_section
->output_section
))
4016 /* xgettext:c-format */
4017 (_("%pB(%pA+%#" PRIx64
"): "
4018 "cannot emit fixup to `%s' in read-only section"),
4021 (uint64_t) rel
->r_offset
,
4026 offset
= _bfd_elf_section_offset (output_bfd
, info
,
4027 input_section
, rel
->r_offset
);
4028 if (offset
!= (bfd_vma
)-1)
4029 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
4030 input_section
->output_section
->vma
4031 + input_section
->output_offset
4034 check_segment
[0] = check_segment
[1] = -1;
4036 /* We don't want warnings for non-NULL tests on undefined weak
4038 else if (r_type
== R_SH_REL32
4040 && h
->root
.type
== bfd_link_hash_undefweak
)
4041 check_segment
[0] = check_segment
[1] = -1;
4042 goto final_link_relocate
;
4045 /* Relocation is to the entry for this symbol in the
4046 procedure linkage table. */
4050 || ! bfd_link_pic (info
)
4053 || h
->plt
.offset
== (bfd_vma
) -1
4054 || h
->got
.offset
!= (bfd_vma
) -1)
4057 /* Relocation is to the entry for this symbol in the global
4058 offset table extension for the procedure linkage table. */
4061 BFD_ASSERT (sgotplt
!= NULL
);
4062 relocation
= (sgotplt
->output_offset
4063 + (get_plt_index (htab
->plt_info
, h
->plt
.offset
)
4067 relocation
-= GOT_BIAS
;
4070 goto final_link_relocate
;
4075 /* Relocation is to the entry for this symbol in the global
4079 BFD_ASSERT (sgot
!= NULL
);
4080 check_segment
[0] = check_segment
[1] = -1;
4086 off
= h
->got
.offset
;
4087 BFD_ASSERT (off
!= (bfd_vma
) -1);
4089 dyn
= htab
->root
.dynamic_sections_created
;
4090 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
4091 bfd_link_pic (info
),
4093 || (bfd_link_pic (info
)
4094 && SYMBOL_REFERENCES_LOCAL (info
, h
))
4095 || ((ELF_ST_VISIBILITY (h
->other
)
4096 || resolved_to_zero
)
4097 && h
->root
.type
== bfd_link_hash_undefweak
))
4099 /* This is actually a static link, or it is a
4100 -Bsymbolic link and the symbol is defined
4101 locally, or the symbol was forced to be local
4102 because of a version file. We must initialize
4103 this entry in the global offset table. Since the
4104 offset must always be a multiple of 4, we use the
4105 least significant bit to record whether we have
4106 initialized it already.
4108 When doing a dynamic link, we create a .rela.got
4109 relocation entry to initialize the value. This
4110 is done in the finish_dynamic_symbol routine. */
4115 bfd_put_32 (output_bfd
, relocation
,
4116 sgot
->contents
+ off
);
4119 /* If we initialize the GOT entry here with a valid
4120 symbol address, also add a fixup. */
4121 if (fdpic_p
&& !bfd_link_pic (info
)
4122 && sh_elf_hash_entry (h
)->got_type
== GOT_NORMAL
4123 && (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
4124 || h
->root
.type
!= bfd_link_hash_undefweak
))
4125 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
4126 sgot
->output_section
->vma
4127 + sgot
->output_offset
4132 relocation
= sh_elf_got_offset (htab
) + off
;
4136 BFD_ASSERT (local_got_offsets
!= NULL
4137 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
4139 off
= local_got_offsets
[r_symndx
];
4141 /* The offset must always be a multiple of 4. We use
4142 the least significant bit to record whether we have
4143 already generated the necessary reloc. */
4148 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
4150 if (bfd_link_pic (info
))
4152 Elf_Internal_Rela outrel
;
4155 outrel
.r_offset
= (sgot
->output_section
->vma
4156 + sgot
->output_offset
4161 = elf_section_data (sec
->output_section
)->dynindx
;
4162 outrel
.r_info
= ELF32_R_INFO (dynindx
, R_SH_DIR32
);
4163 outrel
.r_addend
= relocation
;
4164 outrel
.r_addend
-= sec
->output_section
->vma
;
4168 outrel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
4169 outrel
.r_addend
= relocation
;
4171 loc
= srelgot
->contents
;
4172 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4173 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4176 && (sh_elf_local_got_type (input_bfd
) [r_symndx
]
4178 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
4179 sgot
->output_section
->vma
4180 + sgot
->output_offset
4183 local_got_offsets
[r_symndx
] |= 1;
4186 relocation
= sh_elf_got_offset (htab
) + off
;
4190 relocation
-= GOT_BIAS
;
4193 if (r_type
== R_SH_GOT20
)
4195 r
= install_movi20_field (output_bfd
, relocation
+ addend
,
4196 input_bfd
, input_section
, contents
,
4201 goto final_link_relocate
;
4205 /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which
4206 we place at the start of the .got.plt section. This is the same
4207 as the start of the output .got section, unless there are function
4208 descriptors in front of it. */
4210 BFD_ASSERT (sgotplt
!= NULL
);
4211 check_segment
[0] = got_segment
;
4212 relocation
-= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
4213 + htab
->root
.hgot
->root
.u
.def
.value
;
4216 relocation
-= GOT_BIAS
;
4219 addend
= rel
->r_addend
;
4221 if (r_type
== R_SH_GOTOFF20
)
4223 r
= install_movi20_field (output_bfd
, relocation
+ addend
,
4224 input_bfd
, input_section
, contents
,
4229 goto final_link_relocate
;
4232 /* Use global offset table as symbol value. */
4234 BFD_ASSERT (sgotplt
!= NULL
);
4235 relocation
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
;
4238 relocation
+= GOT_BIAS
;
4241 addend
= rel
->r_addend
;
4243 goto final_link_relocate
;
4246 /* Relocation is to the entry for this symbol in the
4247 procedure linkage table. */
4249 /* Resolve a PLT reloc against a local symbol directly,
4250 without using the procedure linkage table. */
4252 goto final_link_relocate
;
4254 /* We don't want to warn on calls to undefined weak symbols,
4255 as calls to them must be protected by non-NULL tests
4256 anyway, and unprotected calls would invoke undefined
4258 if (h
->root
.type
== bfd_link_hash_undefweak
)
4259 check_segment
[0] = check_segment
[1] = -1;
4261 if (h
->forced_local
)
4262 goto final_link_relocate
;
4264 if (h
->plt
.offset
== (bfd_vma
) -1)
4266 /* We didn't make a PLT entry for this symbol. This
4267 happens when statically linking PIC code, or when
4268 using -Bsymbolic. */
4269 goto final_link_relocate
;
4272 BFD_ASSERT (splt
!= NULL
);
4273 check_segment
[1] = plt_segment
;
4274 relocation
= (splt
->output_section
->vma
4275 + splt
->output_offset
4278 addend
= rel
->r_addend
;
4280 goto final_link_relocate
;
4282 /* Relocation is to the canonical function descriptor for this
4283 symbol, possibly via the GOT. Initialize the GOT
4284 entry and function descriptor if necessary. */
4285 case R_SH_GOTFUNCDESC
:
4286 case R_SH_GOTFUNCDESC20
:
4290 asection
*reloc_section
;
4291 bfd_vma reloc_offset
;
4292 int reloc_type
= R_SH_FUNCDESC
;
4296 check_segment
[0] = check_segment
[1] = -1;
4298 /* FIXME: See what FRV does for global symbols in the
4299 executable, with --export-dynamic. Do they need ld.so
4300 to allocate official descriptors? See what this code
4306 if (r_type
== R_SH_FUNCDESC
)
4308 reloc_section
= input_section
;
4309 reloc_offset
= rel
->r_offset
;
4313 reloc_section
= sgot
;
4316 reloc_offset
= h
->got
.offset
;
4319 BFD_ASSERT (local_got_offsets
!= NULL
);
4320 reloc_offset
= local_got_offsets
[r_symndx
];
4322 BFD_ASSERT (reloc_offset
!= MINUS_ONE
);
4324 if (reloc_offset
& 1)
4327 goto funcdesc_done_got
;
4331 if (h
&& h
->root
.type
== bfd_link_hash_undefweak
4332 && (SYMBOL_CALLS_LOCAL (info
, h
)
4333 || !htab
->root
.dynamic_sections_created
))
4334 /* Undefined weak symbol which will not be dynamically
4335 resolved later; leave it at zero. */
4336 goto funcdesc_leave_zero
;
4337 else if (SYMBOL_CALLS_LOCAL (info
, h
)
4338 && ! SYMBOL_FUNCDESC_LOCAL (info
, h
))
4340 /* If the symbol needs a non-local function descriptor
4341 but binds locally (i.e., its visibility is
4342 protected), emit a dynamic relocation decayed to
4343 section+offset. This is an optimization; the dynamic
4344 linker would resolve our function descriptor request
4345 to our copy of the function anyway. */
4346 dynindx
= elf_section_data (h
->root
.u
.def
.section
4347 ->output_section
)->dynindx
;
4348 relocation
+= h
->root
.u
.def
.section
->output_offset
4349 + h
->root
.u
.def
.value
;
4351 else if (! SYMBOL_FUNCDESC_LOCAL (info
, h
))
4353 /* If the symbol is dynamic and there will be dynamic
4354 symbol resolution because we are or are linked with a
4355 shared library, emit a FUNCDESC relocation such that
4356 the dynamic linker will allocate the function
4358 BFD_ASSERT (h
->dynindx
!= -1);
4359 dynindx
= h
->dynindx
;
4365 /* Otherwise, we know we have a private function
4366 descriptor, so reference it directly. */
4367 reloc_type
= R_SH_DIR32
;
4368 dynindx
= elf_section_data (htab
->sfuncdesc
4369 ->output_section
)->dynindx
;
4373 offset
= sh_elf_hash_entry (h
)->funcdesc
.offset
;
4374 BFD_ASSERT (offset
!= MINUS_ONE
);
4375 if ((offset
& 1) == 0)
4377 if (!sh_elf_initialize_funcdesc (output_bfd
, info
, h
,
4380 sh_elf_hash_entry (h
)->funcdesc
.offset
|= 1;
4385 union gotref
*local_funcdesc
;
4387 local_funcdesc
= sh_elf_local_funcdesc (input_bfd
);
4388 offset
= local_funcdesc
[r_symndx
].offset
;
4389 BFD_ASSERT (offset
!= MINUS_ONE
);
4390 if ((offset
& 1) == 0)
4392 if (!sh_elf_initialize_funcdesc (output_bfd
, info
, NULL
,
4396 local_funcdesc
[r_symndx
].offset
|= 1;
4400 relocation
= htab
->sfuncdesc
->output_offset
+ (offset
& ~1);
4403 if (!bfd_link_pic (info
) && SYMBOL_FUNCDESC_LOCAL (info
, h
))
4407 if (sh_elf_osec_readonly_p (output_bfd
,
4408 reloc_section
->output_section
))
4411 /* xgettext:c-format */
4412 (_("%pB(%pA+%#" PRIx64
"): "
4413 "cannot emit fixup to `%s' in read-only section"),
4416 (uint64_t) rel
->r_offset
,
4421 offset
= _bfd_elf_section_offset (output_bfd
, info
,
4422 reloc_section
, reloc_offset
);
4424 if (offset
!= (bfd_vma
)-1)
4425 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
4427 + reloc_section
->output_section
->vma
4428 + reloc_section
->output_offset
);
4430 else if ((reloc_section
->output_section
->flags
4431 & (SEC_ALLOC
| SEC_LOAD
)) == (SEC_ALLOC
| SEC_LOAD
))
4435 if (sh_elf_osec_readonly_p (output_bfd
,
4436 reloc_section
->output_section
))
4438 info
->callbacks
->warning
4440 _("cannot emit dynamic relocations in read-only section"),
4441 symname
, input_bfd
, reloc_section
, reloc_offset
);
4445 offset
= _bfd_elf_section_offset (output_bfd
, info
,
4446 reloc_section
, reloc_offset
);
4448 if (offset
!= (bfd_vma
)-1)
4449 sh_elf_add_dyn_reloc (output_bfd
, srelgot
,
4451 + reloc_section
->output_section
->vma
4452 + reloc_section
->output_offset
,
4453 reloc_type
, dynindx
, relocation
);
4455 if (r_type
== R_SH_FUNCDESC
)
4463 goto funcdesc_leave_zero
;
4467 if (SYMBOL_FUNCDESC_LOCAL (info
, h
))
4468 relocation
+= htab
->sfuncdesc
->output_section
->vma
;
4469 funcdesc_leave_zero
:
4470 if (r_type
!= R_SH_FUNCDESC
)
4472 bfd_put_32 (output_bfd
, relocation
,
4473 reloc_section
->contents
+ reloc_offset
);
4477 local_got_offsets
[r_symndx
] |= 1;
4481 relocation
= sh_elf_got_offset (htab
) + reloc_offset
;
4483 relocation
-= GOT_BIAS
;
4486 if (r_type
== R_SH_GOTFUNCDESC20
)
4488 r
= install_movi20_field (output_bfd
, relocation
+ addend
,
4489 input_bfd
, input_section
, contents
,
4494 goto final_link_relocate
;
4498 case R_SH_GOTOFFFUNCDESC
:
4499 case R_SH_GOTOFFFUNCDESC20
:
4500 /* FIXME: See R_SH_FUNCDESC comment about global symbols in the
4501 executable and --export-dynamic. If such symbols get
4502 ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC
4506 check_segment
[0] = check_segment
[1] = -1;
4508 addend
= rel
->r_addend
;
4510 if (h
&& (h
->root
.type
== bfd_link_hash_undefweak
4511 || !SYMBOL_FUNCDESC_LOCAL (info
, h
)))
4514 /* xgettext:c-format */
4515 (_("%pB(%pA+%#" PRIx64
"): "
4516 "%s relocation against external symbol \"%s\""),
4517 input_bfd
, input_section
, (uint64_t) rel
->r_offset
,
4518 howto
->name
, h
->root
.root
.string
);
4525 /* Otherwise, we know we have a private function
4526 descriptor, so reference it directly. */
4529 offset
= sh_elf_hash_entry (h
)->funcdesc
.offset
;
4530 BFD_ASSERT (offset
!= MINUS_ONE
);
4531 if ((offset
& 1) == 0)
4533 if (!sh_elf_initialize_funcdesc (output_bfd
, info
, h
,
4536 sh_elf_hash_entry (h
)->funcdesc
.offset
|= 1;
4541 union gotref
*local_funcdesc
;
4543 local_funcdesc
= sh_elf_local_funcdesc (input_bfd
);
4544 offset
= local_funcdesc
[r_symndx
].offset
;
4545 BFD_ASSERT (offset
!= MINUS_ONE
);
4546 if ((offset
& 1) == 0)
4548 if (!sh_elf_initialize_funcdesc (output_bfd
, info
, NULL
,
4552 local_funcdesc
[r_symndx
].offset
|= 1;
4556 relocation
= htab
->sfuncdesc
->output_offset
+ (offset
& ~1);
4559 relocation
-= (htab
->root
.hgot
->root
.u
.def
.value
4560 + sgotplt
->output_offset
);
4562 relocation
-= GOT_BIAS
;
4565 if (r_type
== R_SH_GOTOFFFUNCDESC20
)
4567 r
= install_movi20_field (output_bfd
, relocation
+ addend
,
4568 input_bfd
, input_section
, contents
,
4573 goto final_link_relocate
;
4575 case R_SH_LOOP_START
:
4577 static bfd_vma start
, end
;
4579 start
= (relocation
+ rel
->r_addend
4580 - (sec
->output_section
->vma
+ sec
->output_offset
));
4581 r
= sh_elf_reloc_loop (r_type
, input_bfd
, input_section
, contents
,
4582 rel
->r_offset
, sec
, start
, end
);
4586 end
= (relocation
+ rel
->r_addend
4587 - (sec
->output_section
->vma
+ sec
->output_offset
));
4588 r
= sh_elf_reloc_loop (r_type
, input_bfd
, input_section
, contents
,
4589 rel
->r_offset
, sec
, start
, end
);
4593 case R_SH_TLS_GD_32
:
4594 case R_SH_TLS_IE_32
:
4596 check_segment
[0] = check_segment
[1] = -1;
4597 r_type
= sh_elf_optimized_tls_reloc (info
, r_type
, h
== NULL
);
4598 got_type
= GOT_UNKNOWN
;
4599 if (h
== NULL
&& local_got_offsets
)
4600 got_type
= sh_elf_local_got_type (input_bfd
) [r_symndx
];
4603 got_type
= sh_elf_hash_entry (h
)->got_type
;
4604 if (! bfd_link_pic (info
)
4605 && (h
->dynindx
== -1
4607 r_type
= R_SH_TLS_LE_32
;
4610 if (r_type
== R_SH_TLS_GD_32
&& got_type
== GOT_TLS_IE
)
4611 r_type
= R_SH_TLS_IE_32
;
4613 if (r_type
== R_SH_TLS_LE_32
)
4616 unsigned short insn
;
4618 if (ELF32_R_TYPE (rel
->r_info
) == R_SH_TLS_GD_32
)
4620 /* GD->LE transition:
4621 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4622 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4623 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4625 mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
4627 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
4629 offset
= rel
->r_offset
;
4633 /* xgettext:c-format */
4634 (_("%pB(%pA): offset in relocation for GD->LE translation is too small: %#" PRIx64
),
4635 input_bfd
, input_section
, (uint64_t) offset
);
4639 /* Size of GD instructions is 16 or 18. */
4641 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4642 if ((insn
& 0xff00) == 0xc700)
4644 BFD_ASSERT (offset
>= 2);
4646 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4649 if ((insn
& 0xff00) != 0xd400)
4651 /* xgettext:c-format */ /* The backslash is to prevent bogus trigraph detection. */
4652 (_("%pB(%pA+%#" PRIx64
"): unexpected instruction %#04X (expected 0xd4?\?)"),
4653 input_bfd
, input_section
, (uint64_t) offset
, (int) insn
);
4655 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
4657 if ((insn
& 0xff00) != 0xc700)
4659 /* xgettext:c-format */
4660 (_("%pB(%pA+%#" PRIx64
"): unexpected instruction %#04X (expected 0xc7?\?)"),
4661 input_bfd
, input_section
, (uint64_t) offset
, (int) insn
);
4663 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
4664 if ((insn
& 0xff00) != 0xd100)
4666 /* xgettext:c-format */
4667 (_("%pB(%pA+%#" PRIx64
"): unexpected instruction %#04X (expected 0xd1?\?)"),
4668 input_bfd
, input_section
, (uint64_t) offset
, (int) insn
);
4670 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 6);
4673 /* xgettext:c-format */
4674 (_("%pB(%pA+%#" PRIx64
"): unexpected instruction %#04X (expected 0x310c)"),
4675 input_bfd
, input_section
, (uint64_t) offset
, (int) insn
);
4677 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 8);
4680 /* xgettext:c-format */
4681 (_("%pB(%pA+%#" PRIx64
"): unexpected instruction %#04X (expected 0x410b)"),
4682 input_bfd
, input_section
, (uint64_t) offset
, (int) insn
);
4684 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 10);
4687 /* xgettext:c-format */
4688 (_("%pB(%pA+%#" PRIx64
"): unexpected instruction %#04X (expected 0x34cc)"),
4689 input_bfd
, input_section
, (uint64_t) offset
, (int) insn
);
4691 bfd_put_16 (output_bfd
, 0x0012, contents
+ offset
+ 2);
4692 bfd_put_16 (output_bfd
, 0x304c, contents
+ offset
+ 4);
4693 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 6);
4694 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 8);
4695 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 10);
4701 /* IE->LE transition:
4718 offset
= rel
->r_offset
;
4722 /* xgettext:c-format */
4723 (_("%pB(%pA): offset in relocation for IE->LE translation is too small: %#" PRIx64
),
4724 input_bfd
, input_section
, (uint64_t) offset
);
4728 /* Size of IE instructions is 10 or 12. */
4730 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4731 if ((insn
& 0xf0ff) == 0x0012)
4733 BFD_ASSERT (offset
>= 2);
4735 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4738 if ((insn
& 0xff00) != 0xd000)
4740 /* xgettext:c-format */
4741 (_("%pB(%pA+%#" PRIx64
"): unexpected instruction %#04X (expected 0xd0??: mov.l)"),
4742 input_bfd
, input_section
, (uint64_t) offset
, (int) insn
);
4744 target
= insn
& 0x00ff;
4746 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
4747 if ((insn
& 0xf0ff) != 0x0012)
4749 /* xgettext:c-format */
4750 (_("%pB(%pA+%#" PRIx64
"): unexpected instruction %#04X (expected 0x0?12: stc)"),
4751 input_bfd
, input_section
, (uint64_t) (offset
+ 2), (int) insn
);
4753 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
4754 if ((insn
& 0xf0ff) != 0x00ce)
4756 /* xgettext:c-format */
4757 (_("%pB(%pA+%#" PRIx64
"): unexpected instruction %#04X (expected 0x0?ce: mov.l)"),
4758 input_bfd
, input_section
, (uint64_t) (offset
+ 4), (int) insn
);
4760 insn
= 0xd000 | (insn
& 0x0f00) | target
;
4761 bfd_put_16 (output_bfd
, insn
, contents
+ offset
+ 0);
4762 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 4);
4765 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4766 contents
+ rel
->r_offset
);
4770 if (sgot
== NULL
|| sgotplt
== NULL
)
4774 off
= h
->got
.offset
;
4777 if (local_got_offsets
== NULL
)
4780 off
= local_got_offsets
[r_symndx
];
4783 /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
4784 if (r_type
== R_SH_TLS_IE_32
4785 && ! htab
->root
.dynamic_sections_created
)
4788 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4789 sgot
->contents
+ off
);
4790 bfd_put_32 (output_bfd
, sh_elf_got_offset (htab
) + off
,
4791 contents
+ rel
->r_offset
);
4799 Elf_Internal_Rela outrel
;
4803 outrel
.r_offset
= (sgot
->output_section
->vma
4804 + sgot
->output_offset
+ off
);
4806 if (h
== NULL
|| h
->dynindx
== -1)
4811 dr_type
= (r_type
== R_SH_TLS_GD_32
? R_SH_TLS_DTPMOD32
:
4813 if (dr_type
== R_SH_TLS_TPOFF32
&& indx
== 0)
4814 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4816 outrel
.r_addend
= 0;
4817 outrel
.r_info
= ELF32_R_INFO (indx
, dr_type
);
4818 loc
= srelgot
->contents
;
4819 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4820 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4822 if (r_type
== R_SH_TLS_GD_32
)
4826 bfd_put_32 (output_bfd
,
4827 relocation
- dtpoff_base (info
),
4828 sgot
->contents
+ off
+ 4);
4832 outrel
.r_info
= ELF32_R_INFO (indx
,
4834 outrel
.r_offset
+= 4;
4835 outrel
.r_addend
= 0;
4836 srelgot
->reloc_count
++;
4837 loc
+= sizeof (Elf32_External_Rela
);
4838 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4845 local_got_offsets
[r_symndx
] |= 1;
4848 if (off
>= (bfd_vma
) -2)
4851 if (r_type
== (int) ELF32_R_TYPE (rel
->r_info
))
4852 relocation
= sh_elf_got_offset (htab
) + off
;
4856 unsigned short insn
;
4858 /* GD->IE transition:
4859 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4860 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4861 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4863 mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
4864 nop; nop; bra 3f; nop; .align 2;
4865 1: .long x@TPOFF; 2:...; 3:. */
4867 offset
= rel
->r_offset
;
4871 /* xgettext:c-format */
4872 (_("%pB(%pA): offset in relocation for GD->IE translation is too small: %#" PRIx64
),
4873 input_bfd
, input_section
, (uint64_t) offset
);
4877 /* Size of GD instructions is 16 or 18. */
4879 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4880 if ((insn
& 0xff00) == 0xc700)
4882 BFD_ASSERT (offset
>= 2);
4884 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4887 BFD_ASSERT ((insn
& 0xff00) == 0xd400);
4889 /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
4890 bfd_put_16 (output_bfd
, insn
& 0xf0ff, contents
+ offset
);
4892 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
4893 BFD_ASSERT ((insn
& 0xff00) == 0xc700);
4894 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
4895 BFD_ASSERT ((insn
& 0xff00) == 0xd100);
4896 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 6);
4897 BFD_ASSERT (insn
== 0x310c);
4898 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 8);
4899 BFD_ASSERT (insn
== 0x410b);
4900 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 10);
4901 BFD_ASSERT (insn
== 0x34cc);
4903 bfd_put_16 (output_bfd
, 0x0412, contents
+ offset
+ 2);
4904 bfd_put_16 (output_bfd
, 0x00ce, contents
+ offset
+ 4);
4905 bfd_put_16 (output_bfd
, 0x304c, contents
+ offset
+ 6);
4906 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 8);
4907 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 10);
4909 bfd_put_32 (output_bfd
, sh_elf_got_offset (htab
) + off
,
4910 contents
+ rel
->r_offset
);
4915 addend
= rel
->r_addend
;
4917 goto final_link_relocate
;
4919 case R_SH_TLS_LD_32
:
4921 check_segment
[0] = check_segment
[1] = -1;
4922 if (! bfd_link_pic (info
))
4925 unsigned short insn
;
4927 /* LD->LE transition:
4928 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4929 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4930 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
4932 stc gbr,r0; nop; nop; nop;
4933 nop; nop; bra 3f; ...; 3:. */
4935 offset
= rel
->r_offset
;
4939 /* xgettext:c-format */
4940 (_("%pB(%pA): offset in relocation for LD->LE translation is too small: %#" PRIx64
),
4941 input_bfd
, input_section
, (uint64_t) offset
);
4945 /* Size of LD instructions is 16 or 18. */
4947 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4948 if ((insn
& 0xff00) == 0xc700)
4950 BFD_ASSERT (offset
>= 2);
4952 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4955 BFD_ASSERT ((insn
& 0xff00) == 0xd400);
4956 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
4957 BFD_ASSERT ((insn
& 0xff00) == 0xc700);
4958 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
4959 BFD_ASSERT ((insn
& 0xff00) == 0xd100);
4960 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 6);
4961 BFD_ASSERT (insn
== 0x310c);
4962 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 8);
4963 BFD_ASSERT (insn
== 0x410b);
4964 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 10);
4965 BFD_ASSERT (insn
== 0x34cc);
4967 bfd_put_16 (output_bfd
, 0x0012, contents
+ offset
+ 0);
4968 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 2);
4969 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 4);
4970 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 6);
4971 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 8);
4972 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 10);
4977 if (sgot
== NULL
|| sgotplt
== NULL
)
4980 off
= htab
->tls_ldm_got
.offset
;
4985 Elf_Internal_Rela outrel
;
4988 outrel
.r_offset
= (sgot
->output_section
->vma
4989 + sgot
->output_offset
+ off
);
4990 outrel
.r_addend
= 0;
4991 outrel
.r_info
= ELF32_R_INFO (0, R_SH_TLS_DTPMOD32
);
4992 loc
= srelgot
->contents
;
4993 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4994 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4995 htab
->tls_ldm_got
.offset
|= 1;
4998 relocation
= sh_elf_got_offset (htab
) + off
;
4999 addend
= rel
->r_addend
;
5001 goto final_link_relocate
;
5003 case R_SH_TLS_LDO_32
:
5004 check_segment
[0] = check_segment
[1] = -1;
5005 if (! bfd_link_pic (info
))
5006 relocation
= tpoff (info
, relocation
);
5008 relocation
-= dtpoff_base (info
);
5010 addend
= rel
->r_addend
;
5011 goto final_link_relocate
;
5013 case R_SH_TLS_LE_32
:
5016 Elf_Internal_Rela outrel
;
5019 check_segment
[0] = check_segment
[1] = -1;
5021 if (!bfd_link_dll (info
))
5023 relocation
= tpoff (info
, relocation
);
5024 addend
= rel
->r_addend
;
5025 goto final_link_relocate
;
5030 sreloc
= _bfd_elf_get_dynamic_reloc_section
5031 (input_bfd
, input_section
, /*rela?*/ TRUE
);
5036 if (h
== NULL
|| h
->dynindx
== -1)
5041 outrel
.r_offset
= (input_section
->output_section
->vma
5042 + input_section
->output_offset
5044 outrel
.r_info
= ELF32_R_INFO (indx
, R_SH_TLS_TPOFF32
);
5046 outrel
.r_addend
= relocation
- dtpoff_base (info
);
5048 outrel
.r_addend
= 0;
5050 loc
= sreloc
->contents
;
5051 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
5052 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5058 if (fdpic_p
&& check_segment
[0] != (unsigned) -1
5059 && check_segment
[0] != check_segment
[1])
5061 /* We don't want duplicate errors for undefined symbols. */
5062 if (!h
|| h
->root
.type
!= bfd_link_hash_undefined
)
5064 if (bfd_link_pic (info
))
5066 info
->callbacks
->einfo
5067 /* xgettext:c-format */
5068 (_("%X%C: relocation to \"%s\" references a different segment\n"),
5069 input_bfd
, input_section
, rel
->r_offset
, symname
);
5073 info
->callbacks
->einfo
5074 /* xgettext:c-format */
5075 (_("%C: warning: relocation to \"%s\" references a different segment\n"),
5076 input_bfd
, input_section
, rel
->r_offset
, symname
);
5079 elf_elfheader (output_bfd
)->e_flags
|= EF_SH_PIC
;
5082 if (r
!= bfd_reloc_ok
)
5087 case bfd_reloc_outofrange
:
5089 case bfd_reloc_overflow
:
5097 name
= (bfd_elf_string_from_elf_section
5098 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
5102 name
= bfd_section_name (sec
);
5104 (*info
->callbacks
->reloc_overflow
)
5105 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
5106 (bfd_vma
) 0, input_bfd
, input_section
, rel
->r_offset
);
5116 /* This is a version of bfd_generic_get_relocated_section_contents
5117 which uses sh_elf_relocate_section. */
5120 sh_elf_get_relocated_section_contents (bfd
*output_bfd
,
5121 struct bfd_link_info
*link_info
,
5122 struct bfd_link_order
*link_order
,
5124 bfd_boolean relocatable
,
5127 Elf_Internal_Shdr
*symtab_hdr
;
5128 asection
*input_section
= link_order
->u
.indirect
.section
;
5129 bfd
*input_bfd
= input_section
->owner
;
5130 asection
**sections
= NULL
;
5131 Elf_Internal_Rela
*internal_relocs
= NULL
;
5132 Elf_Internal_Sym
*isymbuf
= NULL
;
5134 /* We only need to handle the case of relaxing, or of having a
5135 particular set of section contents, specially. */
5137 || elf_section_data (input_section
)->this_hdr
.contents
== NULL
)
5138 return bfd_generic_get_relocated_section_contents (output_bfd
, link_info
,
5143 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
5145 memcpy (data
, elf_section_data (input_section
)->this_hdr
.contents
,
5146 (size_t) input_section
->size
);
5148 if ((input_section
->flags
& SEC_RELOC
) != 0
5149 && input_section
->reloc_count
> 0)
5152 Elf_Internal_Sym
*isym
, *isymend
;
5155 internal_relocs
= (_bfd_elf_link_read_relocs
5156 (input_bfd
, input_section
, NULL
,
5157 (Elf_Internal_Rela
*) NULL
, FALSE
));
5158 if (internal_relocs
== NULL
)
5161 if (symtab_hdr
->sh_info
!= 0)
5163 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
5164 if (isymbuf
== NULL
)
5165 isymbuf
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
5166 symtab_hdr
->sh_info
, 0,
5168 if (isymbuf
== NULL
)
5172 amt
= symtab_hdr
->sh_info
;
5173 amt
*= sizeof (asection
*);
5174 sections
= (asection
**) bfd_malloc (amt
);
5175 if (sections
== NULL
&& amt
!= 0)
5178 isymend
= isymbuf
+ symtab_hdr
->sh_info
;
5179 for (isym
= isymbuf
, secpp
= sections
; isym
< isymend
; ++isym
, ++secpp
)
5183 if (isym
->st_shndx
== SHN_UNDEF
)
5184 isec
= bfd_und_section_ptr
;
5185 else if (isym
->st_shndx
== SHN_ABS
)
5186 isec
= bfd_abs_section_ptr
;
5187 else if (isym
->st_shndx
== SHN_COMMON
)
5188 isec
= bfd_com_section_ptr
;
5190 isec
= bfd_section_from_elf_index (input_bfd
, isym
->st_shndx
);
5195 if (! sh_elf_relocate_section (output_bfd
, link_info
, input_bfd
,
5196 input_section
, data
, internal_relocs
,
5201 if (symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
5203 if (elf_section_data (input_section
)->relocs
!= internal_relocs
)
5204 free (internal_relocs
);
5211 if (symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
5213 if (elf_section_data (input_section
)->relocs
!= internal_relocs
)
5214 free (internal_relocs
);
5218 /* Return the base VMA address which should be subtracted from real addresses
5219 when resolving @dtpoff relocation.
5220 This is PT_TLS segment p_vaddr. */
5223 dtpoff_base (struct bfd_link_info
*info
)
5225 /* If tls_sec is NULL, we should have signalled an error already. */
5226 if (elf_hash_table (info
)->tls_sec
== NULL
)
5228 return elf_hash_table (info
)->tls_sec
->vma
;
5231 /* Return the relocation value for R_SH_TLS_TPOFF32.. */
5234 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
5236 /* If tls_sec is NULL, we should have signalled an error already. */
5237 if (elf_hash_table (info
)->tls_sec
== NULL
)
5239 /* SH TLS ABI is variant I and static TLS block start just after tcbhead
5240 structure which has 2 pointer fields. */
5241 return (address
- elf_hash_table (info
)->tls_sec
->vma
5242 + align_power ((bfd_vma
) 8,
5243 elf_hash_table (info
)->tls_sec
->alignment_power
));
5247 sh_elf_gc_mark_hook (asection
*sec
,
5248 struct bfd_link_info
*info
,
5249 Elf_Internal_Rela
*rel
,
5250 struct elf_link_hash_entry
*h
,
5251 Elf_Internal_Sym
*sym
)
5254 switch (ELF32_R_TYPE (rel
->r_info
))
5256 case R_SH_GNU_VTINHERIT
:
5257 case R_SH_GNU_VTENTRY
:
5261 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
5264 /* Copy the extra info we tack onto an elf_link_hash_entry. */
5267 sh_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
5268 struct elf_link_hash_entry
*dir
,
5269 struct elf_link_hash_entry
*ind
)
5271 struct elf_sh_link_hash_entry
*edir
, *eind
;
5273 edir
= (struct elf_sh_link_hash_entry
*) dir
;
5274 eind
= (struct elf_sh_link_hash_entry
*) ind
;
5276 edir
->gotplt_refcount
= eind
->gotplt_refcount
;
5277 eind
->gotplt_refcount
= 0;
5278 edir
->funcdesc
.refcount
+= eind
->funcdesc
.refcount
;
5279 eind
->funcdesc
.refcount
= 0;
5280 edir
->abs_funcdesc_refcount
+= eind
->abs_funcdesc_refcount
;
5281 eind
->abs_funcdesc_refcount
= 0;
5283 if (ind
->root
.type
== bfd_link_hash_indirect
5284 && dir
->got
.refcount
<= 0)
5286 edir
->got_type
= eind
->got_type
;
5287 eind
->got_type
= GOT_UNKNOWN
;
5290 if (ind
->root
.type
!= bfd_link_hash_indirect
5291 && dir
->dynamic_adjusted
)
5293 /* If called to transfer flags for a weakdef during processing
5294 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
5295 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
5296 if (dir
->versioned
!= versioned_hidden
)
5297 dir
->ref_dynamic
|= ind
->ref_dynamic
;
5298 dir
->ref_regular
|= ind
->ref_regular
;
5299 dir
->ref_regular_nonweak
|= ind
->ref_regular_nonweak
;
5300 dir
->needs_plt
|= ind
->needs_plt
;
5303 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
5307 sh_elf_optimized_tls_reloc (struct bfd_link_info
*info
, int r_type
,
5310 if (bfd_link_pic (info
))
5315 case R_SH_TLS_GD_32
:
5316 case R_SH_TLS_IE_32
:
5318 return R_SH_TLS_LE_32
;
5319 return R_SH_TLS_IE_32
;
5320 case R_SH_TLS_LD_32
:
5321 return R_SH_TLS_LE_32
;
5327 /* Look through the relocs for a section during the first phase.
5328 Since we don't do .gots or .plts, we just need to consider the
5329 virtual table relocs for gc. */
5332 sh_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
5333 const Elf_Internal_Rela
*relocs
)
5335 Elf_Internal_Shdr
*symtab_hdr
;
5336 struct elf_link_hash_entry
**sym_hashes
;
5337 struct elf_sh_link_hash_table
*htab
;
5338 const Elf_Internal_Rela
*rel
;
5339 const Elf_Internal_Rela
*rel_end
;
5341 unsigned int r_type
;
5342 enum got_type got_type
, old_got_type
;
5346 if (bfd_link_relocatable (info
))
5349 BFD_ASSERT (is_sh_elf (abfd
));
5351 symtab_hdr
= &elf_symtab_hdr (abfd
);
5352 sym_hashes
= elf_sym_hashes (abfd
);
5354 htab
= sh_elf_hash_table (info
);
5358 rel_end
= relocs
+ sec
->reloc_count
;
5359 for (rel
= relocs
; rel
< rel_end
; rel
++)
5361 struct elf_link_hash_entry
*h
;
5362 unsigned long r_symndx
;
5364 r_symndx
= ELF32_R_SYM (rel
->r_info
);
5365 r_type
= ELF32_R_TYPE (rel
->r_info
);
5367 if (r_symndx
< symtab_hdr
->sh_info
)
5371 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
5372 while (h
->root
.type
== bfd_link_hash_indirect
5373 || h
->root
.type
== bfd_link_hash_warning
)
5374 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5377 r_type
= sh_elf_optimized_tls_reloc (info
, r_type
, h
== NULL
);
5378 if (! bfd_link_pic (info
)
5379 && r_type
== R_SH_TLS_IE_32
5381 && h
->root
.type
!= bfd_link_hash_undefined
5382 && h
->root
.type
!= bfd_link_hash_undefweak
5383 && (h
->dynindx
== -1
5385 r_type
= R_SH_TLS_LE_32
;
5390 case R_SH_GOTOFFFUNCDESC
:
5391 case R_SH_GOTOFFFUNCDESC20
:
5393 case R_SH_GOTFUNCDESC
:
5394 case R_SH_GOTFUNCDESC20
:
5397 if (h
->dynindx
== -1)
5398 switch (ELF_ST_VISIBILITY (h
->other
))
5404 bfd_elf_link_record_dynamic_symbol (info
, h
);
5411 /* Some relocs require a global offset table. */
5412 if (htab
->root
.sgot
== NULL
)
5417 /* This may require an rofixup. */
5427 case R_SH_GOTFUNCDESC
:
5428 case R_SH_GOTFUNCDESC20
:
5429 case R_SH_GOTOFFFUNCDESC
:
5430 case R_SH_GOTOFFFUNCDESC20
:
5432 case R_SH_TLS_GD_32
:
5433 case R_SH_TLS_LD_32
:
5434 case R_SH_TLS_IE_32
:
5435 if (htab
->root
.dynobj
== NULL
)
5436 htab
->root
.dynobj
= abfd
;
5437 if (!create_got_section (htab
->root
.dynobj
, info
))
5448 /* This relocation describes the C++ object vtable hierarchy.
5449 Reconstruct it for later use during GC. */
5450 case R_SH_GNU_VTINHERIT
:
5451 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
5455 /* This relocation describes which C++ vtable entries are actually
5456 used. Record for later use during GC. */
5457 case R_SH_GNU_VTENTRY
:
5458 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
5462 case R_SH_TLS_IE_32
:
5463 if (bfd_link_pic (info
))
5464 info
->flags
|= DF_STATIC_TLS
;
5468 case R_SH_TLS_GD_32
:
5471 case R_SH_GOTFUNCDESC
:
5472 case R_SH_GOTFUNCDESC20
:
5476 got_type
= GOT_NORMAL
;
5478 case R_SH_TLS_GD_32
:
5479 got_type
= GOT_TLS_GD
;
5481 case R_SH_TLS_IE_32
:
5482 got_type
= GOT_TLS_IE
;
5484 case R_SH_GOTFUNCDESC
:
5485 case R_SH_GOTFUNCDESC20
:
5486 got_type
= GOT_FUNCDESC
;
5492 h
->got
.refcount
+= 1;
5493 old_got_type
= sh_elf_hash_entry (h
)->got_type
;
5497 bfd_signed_vma
*local_got_refcounts
;
5499 /* This is a global offset table entry for a local
5501 local_got_refcounts
= elf_local_got_refcounts (abfd
);
5502 if (local_got_refcounts
== NULL
)
5506 size
= symtab_hdr
->sh_info
;
5507 size
*= sizeof (bfd_signed_vma
);
5508 size
+= symtab_hdr
->sh_info
;
5509 local_got_refcounts
= ((bfd_signed_vma
*)
5510 bfd_zalloc (abfd
, size
));
5511 if (local_got_refcounts
== NULL
)
5513 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
5514 sh_elf_local_got_type (abfd
)
5515 = (char *) (local_got_refcounts
+ symtab_hdr
->sh_info
);
5517 local_got_refcounts
[r_symndx
] += 1;
5518 old_got_type
= sh_elf_local_got_type (abfd
) [r_symndx
];
5521 /* If a TLS symbol is accessed using IE at least once,
5522 there is no point to use dynamic model for it. */
5523 if (old_got_type
!= got_type
&& old_got_type
!= GOT_UNKNOWN
5524 && (old_got_type
!= GOT_TLS_GD
|| got_type
!= GOT_TLS_IE
))
5526 if (old_got_type
== GOT_TLS_IE
&& got_type
== GOT_TLS_GD
)
5527 got_type
= GOT_TLS_IE
;
5530 if ((old_got_type
== GOT_FUNCDESC
|| got_type
== GOT_FUNCDESC
)
5531 && (old_got_type
== GOT_NORMAL
|| got_type
== GOT_NORMAL
))
5533 /* xgettext:c-format */
5534 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
5535 abfd
, h
->root
.root
.string
);
5536 else if (old_got_type
== GOT_FUNCDESC
5537 || got_type
== GOT_FUNCDESC
)
5539 /* xgettext:c-format */
5540 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
5541 abfd
, h
->root
.root
.string
);
5544 /* xgettext:c-format */
5545 (_("%pB: `%s' accessed both as normal and thread local symbol"),
5546 abfd
, h
->root
.root
.string
);
5551 if (old_got_type
!= got_type
)
5554 sh_elf_hash_entry (h
)->got_type
= got_type
;
5556 sh_elf_local_got_type (abfd
) [r_symndx
] = got_type
;
5561 case R_SH_TLS_LD_32
:
5562 sh_elf_hash_table(info
)->tls_ldm_got
.refcount
+= 1;
5566 case R_SH_GOTOFFFUNCDESC
:
5567 case R_SH_GOTOFFFUNCDESC20
:
5571 (_("%pB: Function descriptor relocation with non-zero addend"),
5578 union gotref
*local_funcdesc
;
5580 /* We need a function descriptor for a local symbol. */
5581 local_funcdesc
= sh_elf_local_funcdesc (abfd
);
5582 if (local_funcdesc
== NULL
)
5586 size
= symtab_hdr
->sh_info
* sizeof (union gotref
);
5587 local_funcdesc
= (union gotref
*) bfd_zalloc (abfd
, size
);
5588 if (local_funcdesc
== NULL
)
5590 sh_elf_local_funcdesc (abfd
) = local_funcdesc
;
5592 local_funcdesc
[r_symndx
].refcount
+= 1;
5594 if (r_type
== R_SH_FUNCDESC
)
5596 if (!bfd_link_pic (info
))
5597 htab
->srofixup
->size
+= 4;
5599 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
5604 sh_elf_hash_entry (h
)->funcdesc
.refcount
++;
5605 if (r_type
== R_SH_FUNCDESC
)
5606 sh_elf_hash_entry (h
)->abs_funcdesc_refcount
++;
5608 /* If there is a function descriptor reference, then
5609 there should not be any non-FDPIC references. */
5610 old_got_type
= sh_elf_hash_entry (h
)->got_type
;
5611 if (old_got_type
!= GOT_FUNCDESC
&& old_got_type
!= GOT_UNKNOWN
)
5613 if (old_got_type
== GOT_NORMAL
)
5615 /* xgettext:c-format */
5616 (_("%pB: `%s' accessed both as normal and FDPIC symbol"),
5617 abfd
, h
->root
.root
.string
);
5620 /* xgettext:c-format */
5621 (_("%pB: `%s' accessed both as FDPIC and thread local symbol"),
5622 abfd
, h
->root
.root
.string
);
5628 /* If this is a local symbol, we resolve it directly without
5629 creating a procedure linkage table entry. */
5633 || ! bfd_link_pic (info
)
5635 || h
->dynindx
== -1)
5639 h
->plt
.refcount
+= 1;
5640 ((struct elf_sh_link_hash_entry
*) h
)->gotplt_refcount
+= 1;
5645 /* This symbol requires a procedure linkage table entry. We
5646 actually build the entry in adjust_dynamic_symbol,
5647 because this might be a case of linking PIC code which is
5648 never referenced by a dynamic object, in which case we
5649 don't need to generate a procedure linkage table entry
5652 /* If this is a local symbol, we resolve it directly without
5653 creating a procedure linkage table entry. */
5657 if (h
->forced_local
)
5661 h
->plt
.refcount
+= 1;
5666 if (h
!= NULL
&& ! bfd_link_pic (info
))
5669 h
->plt
.refcount
+= 1;
5672 /* If we are creating a shared library, and this is a reloc
5673 against a global symbol, or a non PC relative reloc
5674 against a local symbol, then we need to copy the reloc
5675 into the shared library. However, if we are linking with
5676 -Bsymbolic, we do not need to copy a reloc against a
5677 global symbol which is defined in an object we are
5678 including in the link (i.e., DEF_REGULAR is set). At
5679 this point we have not seen all the input files, so it is
5680 possible that DEF_REGULAR is not set now but will be set
5681 later (it is never cleared). We account for that
5682 possibility below by storing information in the
5683 dyn_relocs field of the hash table entry. A similar
5684 situation occurs when creating shared libraries and symbol
5685 visibility changes render the symbol local.
5687 If on the other hand, we are creating an executable, we
5688 may need to keep relocations for symbols satisfied by a
5689 dynamic library if we manage to avoid copy relocs for the
5691 if ((bfd_link_pic (info
)
5692 && (sec
->flags
& SEC_ALLOC
) != 0
5693 && (r_type
!= R_SH_REL32
5695 && (! info
->symbolic
5696 || h
->root
.type
== bfd_link_hash_defweak
5697 || !h
->def_regular
))))
5698 || (! bfd_link_pic (info
)
5699 && (sec
->flags
& SEC_ALLOC
) != 0
5701 && (h
->root
.type
== bfd_link_hash_defweak
5702 || !h
->def_regular
)))
5704 struct elf_dyn_relocs
*p
;
5705 struct elf_dyn_relocs
**head
;
5707 if (htab
->root
.dynobj
== NULL
)
5708 htab
->root
.dynobj
= abfd
;
5710 /* When creating a shared object, we must copy these
5711 reloc types into the output file. We create a reloc
5712 section in dynobj and make room for this reloc. */
5715 sreloc
= _bfd_elf_make_dynamic_reloc_section
5716 (sec
, htab
->root
.dynobj
, 2, abfd
, /*rela?*/ TRUE
);
5722 /* If this is a global symbol, we count the number of
5723 relocations we need for this symbol. */
5725 head
= &h
->dyn_relocs
;
5728 /* Track dynamic relocs needed for local syms too. */
5731 Elf_Internal_Sym
*isym
;
5733 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
5738 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
5742 vpp
= &elf_section_data (s
)->local_dynrel
;
5743 head
= (struct elf_dyn_relocs
**) vpp
;
5747 if (p
== NULL
|| p
->sec
!= sec
)
5749 size_t amt
= sizeof (*p
);
5750 p
= bfd_alloc (htab
->root
.dynobj
, amt
);
5761 if (r_type
== R_SH_REL32
)
5765 /* Allocate the fixup regardless of whether we need a relocation.
5766 If we end up generating the relocation, we'll unallocate the
5768 if (htab
->fdpic_p
&& !bfd_link_pic (info
)
5769 && r_type
== R_SH_DIR32
5770 && (sec
->flags
& SEC_ALLOC
) != 0)
5771 htab
->srofixup
->size
+= 4;
5774 case R_SH_TLS_LE_32
:
5775 if (bfd_link_dll (info
))
5778 (_("%pB: TLS local exec code cannot be linked into shared objects"),
5785 case R_SH_TLS_LDO_32
:
5786 /* Nothing to do. */
5797 #ifndef sh_elf_set_mach_from_flags
5798 static unsigned int sh_ef_bfd_table
[] = { EF_SH_BFD_TABLE
};
5801 sh_elf_set_mach_from_flags (bfd
*abfd
)
5803 flagword flags
= elf_elfheader (abfd
)->e_flags
& EF_SH_MACH_MASK
;
5805 if (flags
>= ARRAY_SIZE (sh_ef_bfd_table
))
5808 if (sh_ef_bfd_table
[flags
] == 0)
5811 bfd_default_set_arch_mach (abfd
, bfd_arch_sh
, sh_ef_bfd_table
[flags
]);
5817 /* Reverse table lookup for sh_ef_bfd_table[].
5818 Given a bfd MACH value from archures.c
5819 return the equivalent ELF flags from the table.
5820 Return -1 if no match is found. */
5823 sh_elf_get_flags_from_mach (unsigned long mach
)
5825 int i
= ARRAY_SIZE (sh_ef_bfd_table
) - 1;
5828 if (sh_ef_bfd_table
[i
] == mach
)
5831 /* shouldn't get here */
5836 #endif /* not sh_elf_set_mach_from_flags */
5838 #ifndef sh_elf_copy_private_data
5839 /* Copy backend specific data from one object module to another */
5842 sh_elf_copy_private_data (bfd
* ibfd
, bfd
* obfd
)
5844 if (! is_sh_elf (ibfd
) || ! is_sh_elf (obfd
))
5847 if (! _bfd_elf_copy_private_bfd_data (ibfd
, obfd
))
5850 return sh_elf_set_mach_from_flags (obfd
);
5852 #endif /* not sh_elf_copy_private_data */
5854 #ifndef sh_elf_merge_private_data
5856 /* This function returns the ELF architecture number that
5857 corresponds to the given arch_sh* flags. */
5860 sh_find_elf_flags (unsigned int arch_set
)
5862 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
5863 unsigned long bfd_mach
= sh_get_bfd_mach_from_arch_set (arch_set
);
5865 return sh_elf_get_flags_from_mach (bfd_mach
);
5868 /* Merge the architecture type of two BFD files, such that the
5869 resultant architecture supports all the features required
5870 by the two input BFDs.
5871 If the input BFDs are multually incompatible - i.e. one uses
5872 DSP while the other uses FPU - or there is no known architecture
5873 that fits the requirements then an error is emitted. */
5876 sh_merge_bfd_arch (bfd
*ibfd
, struct bfd_link_info
*info
)
5878 bfd
*obfd
= info
->output_bfd
;
5879 unsigned int old_arch
, new_arch
, merged_arch
;
5881 if (! _bfd_generic_verify_endian_match (ibfd
, info
))
5884 old_arch
= sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd
));
5885 new_arch
= sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd
));
5887 merged_arch
= SH_MERGE_ARCH_SET (old_arch
, new_arch
);
5889 if (!SH_VALID_CO_ARCH_SET (merged_arch
))
5892 /* xgettext:c-format */
5893 (_("%pB: uses %s instructions while previous modules "
5894 "use %s instructions"),
5896 SH_ARCH_SET_HAS_DSP (new_arch
) ? "dsp" : "floating point",
5897 SH_ARCH_SET_HAS_DSP (new_arch
) ? "floating point" : "dsp");
5898 bfd_set_error (bfd_error_bad_value
);
5901 else if (!SH_VALID_ARCH_SET (merged_arch
))
5904 /* xgettext:c-format */
5905 (_("internal error: merge of architecture '%s' with "
5906 "architecture '%s' produced unknown architecture"),
5907 bfd_printable_name (obfd
),
5908 bfd_printable_name (ibfd
));
5909 bfd_set_error (bfd_error_bad_value
);
5913 bfd_default_set_arch_mach (obfd
, bfd_arch_sh
,
5914 sh_get_bfd_mach_from_arch_set (merged_arch
));
5919 /* This routine initialises the elf flags when required and
5920 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
5923 sh_elf_merge_private_data (bfd
*ibfd
, struct bfd_link_info
*info
)
5925 bfd
*obfd
= info
->output_bfd
;
5927 /* FIXME: What should be checked when linking shared libraries? */
5928 if ((ibfd
->flags
& DYNAMIC
) != 0)
5931 if (! is_sh_elf (ibfd
) || ! is_sh_elf (obfd
))
5934 if (! elf_flags_init (obfd
))
5936 /* This happens when ld starts out with a 'blank' output file. */
5937 elf_flags_init (obfd
) = TRUE
;
5938 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
5939 sh_elf_set_mach_from_flags (obfd
);
5940 if (elf_elfheader (obfd
)->e_flags
& EF_SH_FDPIC
)
5941 elf_elfheader (obfd
)->e_flags
&= ~EF_SH_PIC
;
5944 if (! sh_merge_bfd_arch (ibfd
, info
))
5946 _bfd_error_handler (_("%pB: uses instructions which are incompatible "
5947 "with instructions used in previous modules"),
5949 bfd_set_error (bfd_error_bad_value
);
5953 elf_elfheader (obfd
)->e_flags
&= ~EF_SH_MACH_MASK
;
5954 elf_elfheader (obfd
)->e_flags
|=
5955 sh_elf_get_flags_from_mach (bfd_get_mach (obfd
));
5957 if (fdpic_object_p (ibfd
) != fdpic_object_p (obfd
))
5959 _bfd_error_handler (_("%pB: attempt to mix FDPIC and non-FDPIC objects"),
5961 bfd_set_error (bfd_error_bad_value
);
5967 #endif /* not sh_elf_merge_private_data */
5969 /* Override the generic function because we need to store sh_elf_obj_tdata
5970 as the specific tdata. We set also the machine architecture from flags
5974 sh_elf_object_p (bfd
*abfd
)
5976 if (! sh_elf_set_mach_from_flags (abfd
))
5979 return (((elf_elfheader (abfd
)->e_flags
& EF_SH_FDPIC
) != 0)
5980 == fdpic_object_p (abfd
));
5983 /* Finish up dynamic symbol handling. We set the contents of various
5984 dynamic sections here. */
5987 sh_elf_finish_dynamic_symbol (bfd
*output_bfd
, struct bfd_link_info
*info
,
5988 struct elf_link_hash_entry
*h
,
5989 Elf_Internal_Sym
*sym
)
5991 struct elf_sh_link_hash_table
*htab
;
5993 htab
= sh_elf_hash_table (info
);
5997 if (h
->plt
.offset
!= (bfd_vma
) -1)
6005 Elf_Internal_Rela rel
;
6007 const struct elf_sh_plt_info
*plt_info
;
6009 /* This symbol has an entry in the procedure linkage table. Set
6012 BFD_ASSERT (h
->dynindx
!= -1);
6014 splt
= htab
->root
.splt
;
6015 sgotplt
= htab
->root
.sgotplt
;
6016 srelplt
= htab
->root
.srelplt
;
6017 BFD_ASSERT (splt
!= NULL
&& sgotplt
!= NULL
&& srelplt
!= NULL
);
6019 /* Get the index in the procedure linkage table which
6020 corresponds to this symbol. This is the index of this symbol
6021 in all the symbols for which we are making plt entries. The
6022 first entry in the procedure linkage table is reserved. */
6023 plt_index
= get_plt_index (htab
->plt_info
, h
->plt
.offset
);
6025 plt_info
= htab
->plt_info
;
6026 if (plt_info
->short_plt
!= NULL
&& plt_index
<= MAX_SHORT_PLT
)
6027 plt_info
= plt_info
->short_plt
;
6029 /* Get the offset into the .got table of the entry that
6030 corresponds to this function. */
6032 /* The offset must be relative to the GOT symbol, twelve bytes
6033 before the end of .got.plt. Each descriptor is eight
6035 got_offset
= plt_index
* 8 + 12 - sgotplt
->size
;
6037 /* Each .got entry is 4 bytes. The first three are
6039 got_offset
= (plt_index
+ 3) * 4;
6042 if (bfd_link_pic (info
))
6043 got_offset
-= GOT_BIAS
;
6046 /* Fill in the entry in the procedure linkage table. */
6047 memcpy (splt
->contents
+ h
->plt
.offset
,
6048 plt_info
->symbol_entry
,
6049 plt_info
->symbol_entry_size
);
6051 if (bfd_link_pic (info
) || htab
->fdpic_p
)
6053 if (plt_info
->symbol_fields
.got20
)
6055 bfd_reloc_status_type r
;
6056 r
= install_movi20_field (output_bfd
, got_offset
,
6057 splt
->owner
, splt
, splt
->contents
,
6059 + plt_info
->symbol_fields
.got_entry
);
6060 BFD_ASSERT (r
== bfd_reloc_ok
);
6063 install_plt_field (output_bfd
, FALSE
, got_offset
,
6066 + plt_info
->symbol_fields
.got_entry
));
6070 BFD_ASSERT (!plt_info
->symbol_fields
.got20
);
6072 install_plt_field (output_bfd
, FALSE
,
6073 (sgotplt
->output_section
->vma
6074 + sgotplt
->output_offset
6078 + plt_info
->symbol_fields
.got_entry
));
6079 if (htab
->root
.target_os
== is_vxworks
)
6081 unsigned int reachable_plts
, plts_per_4k
;
6084 /* Divide the PLT into groups. The first group contains
6085 REACHABLE_PLTS entries and the other groups contain
6086 PLTS_PER_4K entries. Entries in the first group can
6087 branch directly to .plt; those in later groups branch
6088 to the last element of the previous group. */
6089 /* ??? It would be better to create multiple copies of
6090 the common resolver stub. */
6091 reachable_plts
= ((4096
6092 - plt_info
->plt0_entry_size
6093 - (plt_info
->symbol_fields
.plt
+ 4))
6094 / plt_info
->symbol_entry_size
) + 1;
6095 plts_per_4k
= (4096 / plt_info
->symbol_entry_size
);
6096 if (plt_index
< reachable_plts
)
6097 distance
= -(h
->plt
.offset
6098 + plt_info
->symbol_fields
.plt
);
6100 distance
= -(((plt_index
- reachable_plts
) % plts_per_4k
+ 1)
6101 * plt_info
->symbol_entry_size
);
6103 /* Install the 'bra' with this offset. */
6104 bfd_put_16 (output_bfd
,
6105 0xa000 | (0x0fff & ((distance
- 4) / 2)),
6108 + plt_info
->symbol_fields
.plt
));
6111 install_plt_field (output_bfd
, TRUE
,
6112 splt
->output_section
->vma
+ splt
->output_offset
,
6115 + plt_info
->symbol_fields
.plt
));
6118 /* Make got_offset relative to the start of .got.plt. */
6120 if (bfd_link_pic (info
))
6121 got_offset
+= GOT_BIAS
;
6124 got_offset
= plt_index
* 8;
6126 if (plt_info
->symbol_fields
.reloc_offset
!= MINUS_ONE
)
6127 install_plt_field (output_bfd
, FALSE
,
6128 plt_index
* sizeof (Elf32_External_Rela
),
6131 + plt_info
->symbol_fields
.reloc_offset
));
6133 /* Fill in the entry in the global offset table. */
6134 bfd_put_32 (output_bfd
,
6135 (splt
->output_section
->vma
6136 + splt
->output_offset
6138 + plt_info
->symbol_resolve_offset
),
6139 sgotplt
->contents
+ got_offset
);
6141 bfd_put_32 (output_bfd
,
6142 sh_elf_osec_to_segment (output_bfd
, splt
->output_section
),
6143 sgotplt
->contents
+ got_offset
+ 4);
6145 /* Fill in the entry in the .rela.plt section. */
6146 rel
.r_offset
= (sgotplt
->output_section
->vma
6147 + sgotplt
->output_offset
6150 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_FUNCDESC_VALUE
);
6152 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_JMP_SLOT
);
6155 rel
.r_addend
= GOT_BIAS
;
6157 loc
= srelplt
->contents
+ plt_index
* sizeof (Elf32_External_Rela
);
6158 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6160 if (htab
->root
.target_os
== is_vxworks
&& !bfd_link_pic (info
))
6162 /* Create the .rela.plt.unloaded relocations for this PLT entry.
6163 Begin by pointing LOC to the first such relocation. */
6164 loc
= (htab
->srelplt2
->contents
6165 + (plt_index
* 2 + 1) * sizeof (Elf32_External_Rela
));
6167 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
6168 for the PLT entry's pointer to the .got.plt entry. */
6169 rel
.r_offset
= (splt
->output_section
->vma
6170 + splt
->output_offset
6172 + plt_info
->symbol_fields
.got_entry
);
6173 rel
.r_info
= ELF32_R_INFO (htab
->root
.hgot
->indx
, R_SH_DIR32
);
6174 rel
.r_addend
= got_offset
;
6175 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6176 loc
+= sizeof (Elf32_External_Rela
);
6178 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
6179 the .got.plt entry, which initially points to .plt. */
6180 rel
.r_offset
= (sgotplt
->output_section
->vma
6181 + sgotplt
->output_offset
6183 rel
.r_info
= ELF32_R_INFO (htab
->root
.hplt
->indx
, R_SH_DIR32
);
6185 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
6188 if (!h
->def_regular
)
6190 /* Mark the symbol as undefined, rather than as defined in
6191 the .plt section. Leave the value alone. */
6192 sym
->st_shndx
= SHN_UNDEF
;
6196 if (h
->got
.offset
!= (bfd_vma
) -1
6197 && sh_elf_hash_entry (h
)->got_type
!= GOT_TLS_GD
6198 && sh_elf_hash_entry (h
)->got_type
!= GOT_TLS_IE
6199 && sh_elf_hash_entry (h
)->got_type
!= GOT_FUNCDESC
)
6203 Elf_Internal_Rela rel
;
6206 /* This symbol has an entry in the global offset table. Set it
6209 sgot
= htab
->root
.sgot
;
6210 srelgot
= htab
->root
.srelgot
;
6211 BFD_ASSERT (sgot
!= NULL
&& srelgot
!= NULL
);
6213 rel
.r_offset
= (sgot
->output_section
->vma
6214 + sgot
->output_offset
6215 + (h
->got
.offset
&~ (bfd_vma
) 1));
6217 /* If this is a static link, or it is a -Bsymbolic link and the
6218 symbol is defined locally or was forced to be local because
6219 of a version file, we just want to emit a RELATIVE reloc.
6220 The entry in the global offset table will already have been
6221 initialized in the relocate_section function. */
6222 if (bfd_link_pic (info
)
6223 && SYMBOL_REFERENCES_LOCAL (info
, h
))
6227 asection
*sec
= h
->root
.u
.def
.section
;
6229 = elf_section_data (sec
->output_section
)->dynindx
;
6231 rel
.r_info
= ELF32_R_INFO (dynindx
, R_SH_DIR32
);
6232 rel
.r_addend
= (h
->root
.u
.def
.value
6233 + h
->root
.u
.def
.section
->output_offset
);
6237 rel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
6238 rel
.r_addend
= (h
->root
.u
.def
.value
6239 + h
->root
.u
.def
.section
->output_section
->vma
6240 + h
->root
.u
.def
.section
->output_offset
);
6245 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ h
->got
.offset
);
6246 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_GLOB_DAT
);
6250 loc
= srelgot
->contents
;
6251 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
6252 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6258 Elf_Internal_Rela rel
;
6261 /* This symbol needs a copy reloc. Set it up. */
6263 BFD_ASSERT (h
->dynindx
!= -1
6264 && (h
->root
.type
== bfd_link_hash_defined
6265 || h
->root
.type
== bfd_link_hash_defweak
));
6267 s
= bfd_get_linker_section (htab
->root
.dynobj
, ".rela.bss");
6268 BFD_ASSERT (s
!= NULL
);
6270 rel
.r_offset
= (h
->root
.u
.def
.value
6271 + h
->root
.u
.def
.section
->output_section
->vma
6272 + h
->root
.u
.def
.section
->output_offset
);
6273 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_COPY
);
6275 loc
= s
->contents
+ s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
6276 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6279 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks,
6280 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
6282 if (h
== htab
->root
.hdynamic
6283 || (htab
->root
.target_os
!= is_vxworks
&& h
== htab
->root
.hgot
))
6284 sym
->st_shndx
= SHN_ABS
;
6289 /* Finish up the dynamic sections. */
6292 sh_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
6294 struct elf_sh_link_hash_table
*htab
;
6298 htab
= sh_elf_hash_table (info
);
6302 sgotplt
= htab
->root
.sgotplt
;
6303 sdyn
= bfd_get_linker_section (htab
->root
.dynobj
, ".dynamic");
6305 if (htab
->root
.dynamic_sections_created
)
6308 Elf32_External_Dyn
*dyncon
, *dynconend
;
6310 BFD_ASSERT (sgotplt
!= NULL
&& sdyn
!= NULL
);
6312 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
6313 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
6314 for (; dyncon
< dynconend
; dyncon
++)
6316 Elf_Internal_Dyn dyn
;
6319 bfd_elf32_swap_dyn_in (htab
->root
.dynobj
, dyncon
, &dyn
);
6324 if (htab
->root
.target_os
== is_vxworks
6325 && elf_vxworks_finish_dynamic_entry (output_bfd
, &dyn
))
6326 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6330 BFD_ASSERT (htab
->root
.hgot
!= NULL
);
6331 s
= htab
->root
.hgot
->root
.u
.def
.section
;
6332 dyn
.d_un
.d_ptr
= htab
->root
.hgot
->root
.u
.def
.value
6333 + s
->output_section
->vma
+ s
->output_offset
;
6334 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6338 s
= htab
->root
.srelplt
->output_section
;
6339 BFD_ASSERT (s
!= NULL
);
6340 dyn
.d_un
.d_ptr
= s
->vma
;
6341 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6345 s
= htab
->root
.srelplt
->output_section
;
6346 BFD_ASSERT (s
!= NULL
);
6347 dyn
.d_un
.d_val
= s
->size
;
6348 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6353 /* Fill in the first entry in the procedure linkage table. */
6354 splt
= htab
->root
.splt
;
6355 if (splt
&& splt
->size
> 0 && htab
->plt_info
->plt0_entry
)
6359 memcpy (splt
->contents
,
6360 htab
->plt_info
->plt0_entry
,
6361 htab
->plt_info
->plt0_entry_size
);
6362 for (i
= 0; i
< ARRAY_SIZE (htab
->plt_info
->plt0_got_fields
); i
++)
6363 if (htab
->plt_info
->plt0_got_fields
[i
] != MINUS_ONE
)
6364 install_plt_field (output_bfd
, FALSE
,
6365 (sgotplt
->output_section
->vma
6366 + sgotplt
->output_offset
6369 + htab
->plt_info
->plt0_got_fields
[i
]));
6371 if (htab
->root
.target_os
== is_vxworks
)
6373 /* Finalize the .rela.plt.unloaded contents. */
6374 Elf_Internal_Rela rel
;
6377 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
6378 first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */
6379 loc
= htab
->srelplt2
->contents
;
6380 rel
.r_offset
= (splt
->output_section
->vma
6381 + splt
->output_offset
6382 + htab
->plt_info
->plt0_got_fields
[2]);
6383 rel
.r_info
= ELF32_R_INFO (htab
->root
.hgot
->indx
, R_SH_DIR32
);
6385 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6386 loc
+= sizeof (Elf32_External_Rela
);
6388 /* Fix up the remaining .rela.plt.unloaded relocations.
6389 They may have the wrong symbol index for _G_O_T_ or
6390 _P_L_T_ depending on the order in which symbols were
6392 while (loc
< htab
->srelplt2
->contents
+ htab
->srelplt2
->size
)
6394 /* The PLT entry's pointer to the .got.plt slot. */
6395 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
6396 rel
.r_info
= ELF32_R_INFO (htab
->root
.hgot
->indx
,
6398 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
6399 loc
+= sizeof (Elf32_External_Rela
);
6401 /* The .got.plt slot's pointer to .plt. */
6402 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
6403 rel
.r_info
= ELF32_R_INFO (htab
->root
.hplt
->indx
,
6405 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
6406 loc
+= sizeof (Elf32_External_Rela
);
6410 /* UnixWare sets the entsize of .plt to 4, although that doesn't
6411 really seem like the right value. */
6412 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
= 4;
6416 /* Fill in the first three entries in the global offset table. */
6417 if (sgotplt
&& sgotplt
->size
> 0 && !htab
->fdpic_p
)
6420 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
);
6422 bfd_put_32 (output_bfd
,
6423 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
6425 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 4);
6426 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 8);
6429 if (sgotplt
&& sgotplt
->size
> 0)
6430 elf_section_data (sgotplt
->output_section
)->this_hdr
.sh_entsize
= 4;
6432 /* At the very end of the .rofixup section is a pointer to the GOT. */
6433 if (htab
->fdpic_p
&& htab
->srofixup
!= NULL
)
6435 struct elf_link_hash_entry
*hgot
= htab
->root
.hgot
;
6436 bfd_vma got_value
= hgot
->root
.u
.def
.value
6437 + hgot
->root
.u
.def
.section
->output_section
->vma
6438 + hgot
->root
.u
.def
.section
->output_offset
;
6440 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
, got_value
);
6442 /* Make sure we allocated and generated the same number of fixups. */
6443 BFD_ASSERT (htab
->srofixup
->reloc_count
* 4 == htab
->srofixup
->size
);
6446 if (htab
->srelfuncdesc
)
6447 BFD_ASSERT (htab
->srelfuncdesc
->reloc_count
* sizeof (Elf32_External_Rela
)
6448 == htab
->srelfuncdesc
->size
);
6450 if (htab
->root
.srelgot
)
6451 BFD_ASSERT (htab
->root
.srelgot
->reloc_count
* sizeof (Elf32_External_Rela
)
6452 == htab
->root
.srelgot
->size
);
6457 static enum elf_reloc_type_class
6458 sh_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
6459 const asection
*rel_sec ATTRIBUTE_UNUSED
,
6460 const Elf_Internal_Rela
*rela
)
6462 switch ((int) ELF32_R_TYPE (rela
->r_info
))
6465 return reloc_class_relative
;
6467 return reloc_class_plt
;
6469 return reloc_class_copy
;
6471 return reloc_class_normal
;
6475 #if !defined SH_TARGET_ALREADY_DEFINED
6476 /* Support for Linux core dump NOTE sections. */
6479 elf32_shlin_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
6484 switch (note
->descsz
)
6489 case 168: /* Linux/SH */
6491 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
6494 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
6503 /* Make a ".reg/999" section. */
6504 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
6505 size
, note
->descpos
+ offset
);
6509 elf32_shlin_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
6511 switch (note
->descsz
)
6516 case 124: /* Linux/SH elf_prpsinfo */
6517 elf_tdata (abfd
)->core
->program
6518 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
6519 elf_tdata (abfd
)->core
->command
6520 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
6523 /* Note that for some reason, a spurious space is tacked
6524 onto the end of the args in some (at least one anyway)
6525 implementations, so strip it off if it exists. */
6528 char *command
= elf_tdata (abfd
)->core
->command
;
6529 int n
= strlen (command
);
6531 if (0 < n
&& command
[n
- 1] == ' ')
6532 command
[n
- 1] = '\0';
6537 #endif /* not SH_TARGET_ALREADY_DEFINED */
6540 /* Return address for Ith PLT stub in section PLT, for relocation REL
6541 or (bfd_vma) -1 if it should not be included. */
6544 sh_elf_plt_sym_val (bfd_vma i
, const asection
*plt
,
6545 const arelent
*rel ATTRIBUTE_UNUSED
)
6547 const struct elf_sh_plt_info
*plt_info
;
6549 plt_info
= get_plt_info (plt
->owner
, (plt
->owner
->flags
& DYNAMIC
) != 0);
6550 return plt
->vma
+ get_plt_offset (plt_info
, i
);
6553 /* Decide whether to attempt to turn absptr or lsda encodings in
6554 shared libraries into pcrel within the given input section. */
6557 sh_elf_use_relative_eh_frame (bfd
*input_bfd ATTRIBUTE_UNUSED
,
6558 struct bfd_link_info
*info
,
6559 asection
*eh_frame_section ATTRIBUTE_UNUSED
)
6561 struct elf_sh_link_hash_table
*htab
= sh_elf_hash_table (info
);
6563 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
6570 /* Adjust the contents of an eh_frame_hdr section before they're output. */
6573 sh_elf_encode_eh_address (bfd
*abfd
,
6574 struct bfd_link_info
*info
,
6575 asection
*osec
, bfd_vma offset
,
6576 asection
*loc_sec
, bfd_vma loc_offset
,
6579 struct elf_sh_link_hash_table
*htab
= sh_elf_hash_table (info
);
6580 struct elf_link_hash_entry
*h
;
6583 return _bfd_elf_encode_eh_address (abfd
, info
, osec
, offset
, loc_sec
,
6584 loc_offset
, encoded
);
6586 h
= htab
->root
.hgot
;
6587 BFD_ASSERT (h
&& h
->root
.type
== bfd_link_hash_defined
);
6589 if (! h
|| (sh_elf_osec_to_segment (abfd
, osec
)
6590 == sh_elf_osec_to_segment (abfd
, loc_sec
->output_section
)))
6591 return _bfd_elf_encode_eh_address (abfd
, info
, osec
, offset
,
6592 loc_sec
, loc_offset
, encoded
);
6594 BFD_ASSERT (sh_elf_osec_to_segment (abfd
, osec
)
6595 == (sh_elf_osec_to_segment
6596 (abfd
, h
->root
.u
.def
.section
->output_section
)));
6598 *encoded
= osec
->vma
+ offset
6599 - (h
->root
.u
.def
.value
6600 + h
->root
.u
.def
.section
->output_section
->vma
6601 + h
->root
.u
.def
.section
->output_offset
);
6603 return DW_EH_PE_datarel
| DW_EH_PE_sdata4
;
6606 #if !defined SH_TARGET_ALREADY_DEFINED
6607 #define TARGET_BIG_SYM sh_elf32_vec
6608 #define TARGET_BIG_NAME "elf32-sh"
6609 #define TARGET_LITTLE_SYM sh_elf32_le_vec
6610 #define TARGET_LITTLE_NAME "elf32-shl"
6613 #define ELF_ARCH bfd_arch_sh
6614 #define ELF_TARGET_ID SH_ELF_DATA
6615 #define ELF_MACHINE_CODE EM_SH
6616 #ifdef __QNXTARGET__
6617 #define ELF_MAXPAGESIZE 0x1000
6619 #define ELF_MAXPAGESIZE 0x80
6622 #define elf_symbol_leading_char '_'
6624 #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
6625 #define bfd_elf32_bfd_reloc_name_lookup \
6626 sh_elf_reloc_name_lookup
6627 #define elf_info_to_howto sh_elf_info_to_howto
6628 #define bfd_elf32_bfd_relax_section sh_elf_relax_section
6629 #define elf_backend_relocate_section sh_elf_relocate_section
6630 #define bfd_elf32_bfd_get_relocated_section_contents \
6631 sh_elf_get_relocated_section_contents
6632 #define bfd_elf32_mkobject sh_elf_mkobject
6633 #define elf_backend_object_p sh_elf_object_p
6634 #define bfd_elf32_bfd_copy_private_bfd_data \
6635 sh_elf_copy_private_data
6636 #define bfd_elf32_bfd_merge_private_bfd_data \
6637 sh_elf_merge_private_data
6639 #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
6640 #define elf_backend_check_relocs sh_elf_check_relocs
6641 #define elf_backend_copy_indirect_symbol \
6642 sh_elf_copy_indirect_symbol
6643 #define elf_backend_create_dynamic_sections \
6644 sh_elf_create_dynamic_sections
6645 #define bfd_elf32_bfd_link_hash_table_create \
6646 sh_elf_link_hash_table_create
6647 #define elf_backend_adjust_dynamic_symbol \
6648 sh_elf_adjust_dynamic_symbol
6649 #define elf_backend_always_size_sections \
6650 sh_elf_always_size_sections
6651 #define elf_backend_size_dynamic_sections \
6652 sh_elf_size_dynamic_sections
6653 #define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym
6654 #define elf_backend_finish_dynamic_symbol \
6655 sh_elf_finish_dynamic_symbol
6656 #define elf_backend_finish_dynamic_sections \
6657 sh_elf_finish_dynamic_sections
6658 #define elf_backend_reloc_type_class sh_elf_reloc_type_class
6659 #define elf_backend_plt_sym_val sh_elf_plt_sym_val
6660 #define elf_backend_can_make_relative_eh_frame \
6661 sh_elf_use_relative_eh_frame
6662 #define elf_backend_can_make_lsda_relative_eh_frame \
6663 sh_elf_use_relative_eh_frame
6664 #define elf_backend_encode_eh_address \
6665 sh_elf_encode_eh_address
6667 #define elf_backend_stack_align 8
6668 #define elf_backend_can_gc_sections 1
6669 #define elf_backend_can_refcount 1
6670 #define elf_backend_want_got_plt 1
6671 #define elf_backend_plt_readonly 1
6672 #define elf_backend_want_plt_sym 0
6673 #define elf_backend_got_header_size 12
6674 #define elf_backend_dtrel_excludes_plt 1
6676 #define elf_backend_linux_prpsinfo32_ugid16 TRUE
6678 #if !defined SH_TARGET_ALREADY_DEFINED
6680 #include "elf32-target.h"
6682 /* NetBSD support. */
6683 #undef TARGET_BIG_SYM
6684 #define TARGET_BIG_SYM sh_elf32_nbsd_vec
6685 #undef TARGET_BIG_NAME
6686 #define TARGET_BIG_NAME "elf32-sh-nbsd"
6687 #undef TARGET_LITTLE_SYM
6688 #define TARGET_LITTLE_SYM sh_elf32_nbsd_le_vec
6689 #undef TARGET_LITTLE_NAME
6690 #define TARGET_LITTLE_NAME "elf32-shl-nbsd"
6691 #undef ELF_MAXPAGESIZE
6692 #define ELF_MAXPAGESIZE 0x10000
6693 #undef ELF_COMMONPAGESIZE
6694 #undef elf_symbol_leading_char
6695 #define elf_symbol_leading_char 0
6697 #define elf32_bed elf32_sh_nbsd_bed
6699 #include "elf32-target.h"
6702 /* Linux support. */
6703 #undef TARGET_BIG_SYM
6704 #define TARGET_BIG_SYM sh_elf32_linux_be_vec
6705 #undef TARGET_BIG_NAME
6706 #define TARGET_BIG_NAME "elf32-shbig-linux"
6707 #undef TARGET_LITTLE_SYM
6708 #define TARGET_LITTLE_SYM sh_elf32_linux_vec
6709 #undef TARGET_LITTLE_NAME
6710 #define TARGET_LITTLE_NAME "elf32-sh-linux"
6711 #undef ELF_COMMONPAGESIZE
6712 #define ELF_COMMONPAGESIZE 0x1000
6714 #undef elf_backend_grok_prstatus
6715 #define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
6716 #undef elf_backend_grok_psinfo
6717 #define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
6719 #define elf32_bed elf32_sh_lin_bed
6721 #include "elf32-target.h"
6724 /* FDPIC support. */
6725 #undef TARGET_BIG_SYM
6726 #define TARGET_BIG_SYM sh_elf32_fdpic_be_vec
6727 #undef TARGET_BIG_NAME
6728 #define TARGET_BIG_NAME "elf32-shbig-fdpic"
6729 #undef TARGET_LITTLE_SYM
6730 #define TARGET_LITTLE_SYM sh_elf32_fdpic_le_vec
6731 #undef TARGET_LITTLE_NAME
6732 #define TARGET_LITTLE_NAME "elf32-sh-fdpic"
6735 #define elf32_bed elf32_sh_fd_bed
6737 #include "elf32-target.h"
6739 /* VxWorks support. */
6740 #undef TARGET_BIG_SYM
6741 #define TARGET_BIG_SYM sh_elf32_vxworks_vec
6742 #undef TARGET_BIG_NAME
6743 #define TARGET_BIG_NAME "elf32-sh-vxworks"
6744 #undef TARGET_LITTLE_SYM
6745 #define TARGET_LITTLE_SYM sh_elf32_vxworks_le_vec
6746 #undef TARGET_LITTLE_NAME
6747 #define TARGET_LITTLE_NAME "elf32-shl-vxworks"
6749 #define elf32_bed elf32_sh_vxworks_bed
6751 #undef elf_backend_want_plt_sym
6752 #define elf_backend_want_plt_sym 1
6753 #undef elf_symbol_leading_char
6754 #define elf_symbol_leading_char '_'
6755 #define elf_backend_want_got_underscore 1
6756 #undef elf_backend_grok_prstatus
6757 #undef elf_backend_grok_psinfo
6758 #undef elf_backend_add_symbol_hook
6759 #define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook
6760 #undef elf_backend_link_output_symbol_hook
6761 #define elf_backend_link_output_symbol_hook \
6762 elf_vxworks_link_output_symbol_hook
6763 #undef elf_backend_emit_relocs
6764 #define elf_backend_emit_relocs elf_vxworks_emit_relocs
6765 #undef elf_backend_final_write_processing
6766 #define elf_backend_final_write_processing \
6767 elf_vxworks_final_write_processing
6768 #undef ELF_MAXPAGESIZE
6769 #define ELF_MAXPAGESIZE 0x1000
6770 #undef ELF_COMMONPAGESIZE
6772 #undef ELF_TARGET_OS
6773 #define ELF_TARGET_OS is_vxworks
6775 #include "elf32-target.h"
6777 #endif /* not SH_TARGET_ALREADY_DEFINED */