1 /* Renesas / SuperH SH specific support for 32-bit ELF
2 Copyright (C) 1996-2016 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 static bfd_reloc_status_type sh_elf_reloc
34 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
35 static bfd_reloc_status_type sh_elf_ignore_reloc
36 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
37 static bfd_boolean sh_elf_relax_delete_bytes
38 (bfd
*, asection
*, bfd_vma
, int);
39 static bfd_boolean sh_elf_align_loads
40 (bfd
*, asection
*, Elf_Internal_Rela
*, bfd_byte
*, bfd_boolean
*);
42 static bfd_boolean sh_elf_swap_insns
43 (bfd
*, asection
*, void *, bfd_byte
*, bfd_vma
);
45 static int sh_elf_optimized_tls_reloc
46 (struct bfd_link_info
*, int, int);
47 static bfd_vma dtpoff_base
48 (struct bfd_link_info
*);
50 (struct bfd_link_info
*, bfd_vma
);
52 /* The name of the dynamic interpreter. This is put in the .interp
55 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
57 /* FDPIC binaries have a default 128K stack. */
58 #define DEFAULT_STACK_SIZE 0x20000
60 #define MINUS_ONE ((bfd_vma) 0 - 1)
62 /* Decide whether a reference to a symbol can be resolved locally or
63 not. If the symbol is protected, we want the local address, but
64 its function descriptor must be assigned by the dynamic linker. */
65 #define SYMBOL_FUNCDESC_LOCAL(INFO, H) \
66 (SYMBOL_REFERENCES_LOCAL (INFO, H) \
67 || ! elf_hash_table (INFO)->dynamic_sections_created)
69 #define SH_PARTIAL32 TRUE
70 #define SH_SRC_MASK32 0xffffffff
71 #define SH_ELF_RELOC sh_elf_reloc
72 static reloc_howto_type sh_elf_howto_table
[] =
74 #include "elf32-sh-relocs.h"
77 #define SH_PARTIAL32 FALSE
78 #define SH_SRC_MASK32 0
79 #define SH_ELF_RELOC bfd_elf_generic_reloc
80 static reloc_howto_type sh_vxworks_howto_table
[] =
82 #include "elf32-sh-relocs.h"
85 /* Return true if OUTPUT_BFD is a VxWorks object. */
88 vxworks_object_p (bfd
*abfd ATTRIBUTE_UNUSED
)
90 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
91 extern const bfd_target sh_elf32_vxworks_le_vec
;
92 extern const bfd_target sh_elf32_vxworks_vec
;
94 return (abfd
->xvec
== &sh_elf32_vxworks_le_vec
95 || abfd
->xvec
== &sh_elf32_vxworks_vec
);
101 /* Return true if OUTPUT_BFD is an FDPIC object. */
104 fdpic_object_p (bfd
*abfd ATTRIBUTE_UNUSED
)
106 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
107 extern const bfd_target sh_elf32_fdpic_le_vec
;
108 extern const bfd_target sh_elf32_fdpic_be_vec
;
110 return (abfd
->xvec
== &sh_elf32_fdpic_le_vec
111 || abfd
->xvec
== &sh_elf32_fdpic_be_vec
);
117 /* Return the howto table for ABFD. */
119 static reloc_howto_type
*
120 get_howto_table (bfd
*abfd
)
122 if (vxworks_object_p (abfd
))
123 return sh_vxworks_howto_table
;
124 return sh_elf_howto_table
;
127 static bfd_reloc_status_type
128 sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED
, bfd
*input_bfd
,
129 asection
*input_section
, bfd_byte
*contents
,
130 bfd_vma addr
, asection
*symbol_section
,
131 bfd_vma start
, bfd_vma end
)
133 static bfd_vma last_addr
;
134 static asection
*last_symbol_section
;
135 bfd_byte
*start_ptr
, *ptr
, *last_ptr
;
140 /* Sanity check the address. */
141 if (addr
> bfd_get_section_limit (input_bfd
, input_section
))
142 return bfd_reloc_outofrange
;
144 /* We require the start and end relocations to be processed consecutively -
145 although we allow then to be processed forwards or backwards. */
149 last_symbol_section
= symbol_section
;
152 if (last_addr
!= addr
)
156 if (! symbol_section
|| last_symbol_section
!= symbol_section
|| end
< start
)
157 return bfd_reloc_outofrange
;
159 /* Get the symbol_section contents. */
160 if (symbol_section
!= input_section
)
162 if (elf_section_data (symbol_section
)->this_hdr
.contents
!= NULL
)
163 contents
= elf_section_data (symbol_section
)->this_hdr
.contents
;
166 if (!bfd_malloc_and_get_section (input_bfd
, symbol_section
,
169 if (contents
!= NULL
)
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;
206 && elf_section_data (symbol_section
)->this_hdr
.contents
!= contents
)
209 insn
= bfd_get_16 (input_bfd
, contents
+ addr
);
211 x
= (insn
& 0x200 ? end
: start
) - addr
;
212 if (input_section
!= symbol_section
)
213 x
+= ((symbol_section
->output_section
->vma
+ symbol_section
->output_offset
)
214 - (input_section
->output_section
->vma
215 + input_section
->output_offset
));
217 if (x
< -128 || x
> 127)
218 return bfd_reloc_overflow
;
220 x
= (insn
& ~0xff) | (x
& 0xff);
221 bfd_put_16 (input_bfd
, (bfd_vma
) x
, contents
+ addr
);
226 /* This function is used for normal relocs. This used to be like the COFF
227 function, and is almost certainly incorrect for other ELF targets. */
229 static bfd_reloc_status_type
230 sh_elf_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol_in
,
231 void *data
, asection
*input_section
, bfd
*output_bfd
,
232 char **error_message ATTRIBUTE_UNUSED
)
236 enum elf_sh_reloc_type r_type
;
237 bfd_vma addr
= reloc_entry
->address
;
238 bfd_byte
*hit_data
= addr
+ (bfd_byte
*) data
;
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 (addr
* bfd_octets_per_byte (abfd
) + 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
, (bfd_vma
) 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) << 1;
287 insn
= (insn
& 0xf000) | (sym_value
& 0xfff);
288 bfd_put_16 (abfd
, (bfd_vma
) insn
, hit_data
);
289 if (sym_value
< (bfd_vma
) -0x1000 || sym_value
>= 0x1000)
290 return bfd_reloc_overflow
;
300 /* This function is used for relocs which are only used for relaxing,
301 which the linker should otherwise ignore. */
303 static bfd_reloc_status_type
304 sh_elf_ignore_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
305 asymbol
*symbol ATTRIBUTE_UNUSED
,
306 void *data ATTRIBUTE_UNUSED
, asection
*input_section
,
308 char **error_message ATTRIBUTE_UNUSED
)
310 if (output_bfd
!= NULL
)
311 reloc_entry
->address
+= input_section
->output_offset
;
315 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
319 bfd_reloc_code_real_type bfd_reloc_val
;
320 unsigned char elf_reloc_val
;
323 /* An array mapping BFD reloc codes to SH ELF relocs. */
325 static const struct elf_reloc_map sh_reloc_map
[] =
327 { BFD_RELOC_NONE
, R_SH_NONE
},
328 { BFD_RELOC_32
, R_SH_DIR32
},
329 { BFD_RELOC_16
, R_SH_DIR16
},
330 { BFD_RELOC_8
, R_SH_DIR8
},
331 { BFD_RELOC_CTOR
, R_SH_DIR32
},
332 { BFD_RELOC_32_PCREL
, R_SH_REL32
},
333 { BFD_RELOC_SH_PCDISP8BY2
, R_SH_DIR8WPN
},
334 { BFD_RELOC_SH_PCDISP12BY2
, R_SH_IND12W
},
335 { BFD_RELOC_SH_PCRELIMM8BY2
, R_SH_DIR8WPZ
},
336 { BFD_RELOC_SH_PCRELIMM8BY4
, R_SH_DIR8WPL
},
337 { BFD_RELOC_8_PCREL
, R_SH_SWITCH8
},
338 { BFD_RELOC_SH_SWITCH16
, R_SH_SWITCH16
},
339 { BFD_RELOC_SH_SWITCH32
, R_SH_SWITCH32
},
340 { BFD_RELOC_SH_USES
, R_SH_USES
},
341 { BFD_RELOC_SH_COUNT
, R_SH_COUNT
},
342 { BFD_RELOC_SH_ALIGN
, R_SH_ALIGN
},
343 { BFD_RELOC_SH_CODE
, R_SH_CODE
},
344 { BFD_RELOC_SH_DATA
, R_SH_DATA
},
345 { BFD_RELOC_SH_LABEL
, R_SH_LABEL
},
346 { BFD_RELOC_VTABLE_INHERIT
, R_SH_GNU_VTINHERIT
},
347 { BFD_RELOC_VTABLE_ENTRY
, R_SH_GNU_VTENTRY
},
348 { BFD_RELOC_SH_LOOP_START
, R_SH_LOOP_START
},
349 { BFD_RELOC_SH_LOOP_END
, R_SH_LOOP_END
},
350 { BFD_RELOC_SH_TLS_GD_32
, R_SH_TLS_GD_32
},
351 { BFD_RELOC_SH_TLS_LD_32
, R_SH_TLS_LD_32
},
352 { BFD_RELOC_SH_TLS_LDO_32
, R_SH_TLS_LDO_32
},
353 { BFD_RELOC_SH_TLS_IE_32
, R_SH_TLS_IE_32
},
354 { BFD_RELOC_SH_TLS_LE_32
, R_SH_TLS_LE_32
},
355 { BFD_RELOC_SH_TLS_DTPMOD32
, R_SH_TLS_DTPMOD32
},
356 { BFD_RELOC_SH_TLS_DTPOFF32
, R_SH_TLS_DTPOFF32
},
357 { BFD_RELOC_SH_TLS_TPOFF32
, R_SH_TLS_TPOFF32
},
358 { BFD_RELOC_32_GOT_PCREL
, R_SH_GOT32
},
359 { BFD_RELOC_32_PLT_PCREL
, R_SH_PLT32
},
360 { BFD_RELOC_SH_COPY
, R_SH_COPY
},
361 { BFD_RELOC_SH_GLOB_DAT
, R_SH_GLOB_DAT
},
362 { BFD_RELOC_SH_JMP_SLOT
, R_SH_JMP_SLOT
},
363 { BFD_RELOC_SH_RELATIVE
, R_SH_RELATIVE
},
364 { BFD_RELOC_32_GOTOFF
, R_SH_GOTOFF
},
365 { BFD_RELOC_SH_GOTPC
, R_SH_GOTPC
},
366 { BFD_RELOC_SH_GOTPLT32
, R_SH_GOTPLT32
},
367 { BFD_RELOC_SH_GOT20
, R_SH_GOT20
},
368 { BFD_RELOC_SH_GOTOFF20
, R_SH_GOTOFF20
},
369 { BFD_RELOC_SH_GOTFUNCDESC
, R_SH_GOTFUNCDESC
},
370 { BFD_RELOC_SH_GOTFUNCDESC20
, R_SH_GOTFUNCDESC20
},
371 { BFD_RELOC_SH_GOTOFFFUNCDESC
, R_SH_GOTOFFFUNCDESC
},
372 { BFD_RELOC_SH_GOTOFFFUNCDESC20
, R_SH_GOTOFFFUNCDESC20
},
373 { BFD_RELOC_SH_FUNCDESC
, R_SH_FUNCDESC
},
374 #ifdef INCLUDE_SHMEDIA
375 { BFD_RELOC_SH_GOT_LOW16
, R_SH_GOT_LOW16
},
376 { BFD_RELOC_SH_GOT_MEDLOW16
, R_SH_GOT_MEDLOW16
},
377 { BFD_RELOC_SH_GOT_MEDHI16
, R_SH_GOT_MEDHI16
},
378 { BFD_RELOC_SH_GOT_HI16
, R_SH_GOT_HI16
},
379 { BFD_RELOC_SH_GOTPLT_LOW16
, R_SH_GOTPLT_LOW16
},
380 { BFD_RELOC_SH_GOTPLT_MEDLOW16
, R_SH_GOTPLT_MEDLOW16
},
381 { BFD_RELOC_SH_GOTPLT_MEDHI16
, R_SH_GOTPLT_MEDHI16
},
382 { BFD_RELOC_SH_GOTPLT_HI16
, R_SH_GOTPLT_HI16
},
383 { BFD_RELOC_SH_PLT_LOW16
, R_SH_PLT_LOW16
},
384 { BFD_RELOC_SH_PLT_MEDLOW16
, R_SH_PLT_MEDLOW16
},
385 { BFD_RELOC_SH_PLT_MEDHI16
, R_SH_PLT_MEDHI16
},
386 { BFD_RELOC_SH_PLT_HI16
, R_SH_PLT_HI16
},
387 { BFD_RELOC_SH_GOTOFF_LOW16
, R_SH_GOTOFF_LOW16
},
388 { BFD_RELOC_SH_GOTOFF_MEDLOW16
, R_SH_GOTOFF_MEDLOW16
},
389 { BFD_RELOC_SH_GOTOFF_MEDHI16
, R_SH_GOTOFF_MEDHI16
},
390 { BFD_RELOC_SH_GOTOFF_HI16
, R_SH_GOTOFF_HI16
},
391 { BFD_RELOC_SH_GOTPC_LOW16
, R_SH_GOTPC_LOW16
},
392 { BFD_RELOC_SH_GOTPC_MEDLOW16
, R_SH_GOTPC_MEDLOW16
},
393 { BFD_RELOC_SH_GOTPC_MEDHI16
, R_SH_GOTPC_MEDHI16
},
394 { BFD_RELOC_SH_GOTPC_HI16
, R_SH_GOTPC_HI16
},
395 { BFD_RELOC_SH_COPY64
, R_SH_COPY64
},
396 { BFD_RELOC_SH_GLOB_DAT64
, R_SH_GLOB_DAT64
},
397 { BFD_RELOC_SH_JMP_SLOT64
, R_SH_JMP_SLOT64
},
398 { BFD_RELOC_SH_RELATIVE64
, R_SH_RELATIVE64
},
399 { BFD_RELOC_SH_GOT10BY4
, R_SH_GOT10BY4
},
400 { BFD_RELOC_SH_GOT10BY8
, R_SH_GOT10BY8
},
401 { BFD_RELOC_SH_GOTPLT10BY4
, R_SH_GOTPLT10BY4
},
402 { BFD_RELOC_SH_GOTPLT10BY8
, R_SH_GOTPLT10BY8
},
403 { BFD_RELOC_SH_PT_16
, R_SH_PT_16
},
404 { BFD_RELOC_SH_SHMEDIA_CODE
, R_SH_SHMEDIA_CODE
},
405 { BFD_RELOC_SH_IMMU5
, R_SH_DIR5U
},
406 { BFD_RELOC_SH_IMMS6
, R_SH_DIR6S
},
407 { BFD_RELOC_SH_IMMU6
, R_SH_DIR6U
},
408 { BFD_RELOC_SH_IMMS10
, R_SH_DIR10S
},
409 { BFD_RELOC_SH_IMMS10BY2
, R_SH_DIR10SW
},
410 { BFD_RELOC_SH_IMMS10BY4
, R_SH_DIR10SL
},
411 { BFD_RELOC_SH_IMMS10BY8
, R_SH_DIR10SQ
},
412 { BFD_RELOC_SH_IMMS16
, R_SH_IMMS16
},
413 { BFD_RELOC_SH_IMMU16
, R_SH_IMMU16
},
414 { BFD_RELOC_SH_IMM_LOW16
, R_SH_IMM_LOW16
},
415 { BFD_RELOC_SH_IMM_LOW16_PCREL
, R_SH_IMM_LOW16_PCREL
},
416 { BFD_RELOC_SH_IMM_MEDLOW16
, R_SH_IMM_MEDLOW16
},
417 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL
, R_SH_IMM_MEDLOW16_PCREL
},
418 { BFD_RELOC_SH_IMM_MEDHI16
, R_SH_IMM_MEDHI16
},
419 { BFD_RELOC_SH_IMM_MEDHI16_PCREL
, R_SH_IMM_MEDHI16_PCREL
},
420 { BFD_RELOC_SH_IMM_HI16
, R_SH_IMM_HI16
},
421 { BFD_RELOC_SH_IMM_HI16_PCREL
, R_SH_IMM_HI16_PCREL
},
422 { BFD_RELOC_64
, R_SH_64
},
423 { BFD_RELOC_64_PCREL
, R_SH_64_PCREL
},
424 #endif /* not INCLUDE_SHMEDIA */
427 /* Given a BFD reloc code, return the howto structure for the
428 corresponding SH ELF reloc. */
430 static reloc_howto_type
*
431 sh_elf_reloc_type_lookup (bfd
*abfd
, bfd_reloc_code_real_type code
)
435 for (i
= 0; i
< sizeof (sh_reloc_map
) / sizeof (struct elf_reloc_map
); i
++)
437 if (sh_reloc_map
[i
].bfd_reloc_val
== code
)
438 return get_howto_table (abfd
) + (int) sh_reloc_map
[i
].elf_reloc_val
;
444 static reloc_howto_type
*
445 sh_elf_reloc_name_lookup (bfd
*abfd
, const char *r_name
)
449 if (vxworks_object_p (abfd
))
452 i
< (sizeof (sh_vxworks_howto_table
)
453 / sizeof (sh_vxworks_howto_table
[0]));
455 if (sh_vxworks_howto_table
[i
].name
!= NULL
456 && strcasecmp (sh_vxworks_howto_table
[i
].name
, r_name
) == 0)
457 return &sh_vxworks_howto_table
[i
];
462 i
< (sizeof (sh_elf_howto_table
)
463 / sizeof (sh_elf_howto_table
[0]));
465 if (sh_elf_howto_table
[i
].name
!= NULL
466 && strcasecmp (sh_elf_howto_table
[i
].name
, r_name
) == 0)
467 return &sh_elf_howto_table
[i
];
473 /* Given an ELF reloc, fill in the howto field of a relent. */
476 sh_elf_info_to_howto (bfd
*abfd
, arelent
*cache_ptr
, Elf_Internal_Rela
*dst
)
480 r
= ELF32_R_TYPE (dst
->r_info
);
483 || (r
>= R_SH_FIRST_INVALID_RELOC
&& r
<= R_SH_LAST_INVALID_RELOC
)
484 || (r
>= R_SH_FIRST_INVALID_RELOC_2
&& r
<= R_SH_LAST_INVALID_RELOC_2
)
485 || (r
>= R_SH_FIRST_INVALID_RELOC_3
&& r
<= R_SH_LAST_INVALID_RELOC_3
)
486 || (r
>= R_SH_FIRST_INVALID_RELOC_4
&& r
<= R_SH_LAST_INVALID_RELOC_4
)
487 || (r
>= R_SH_FIRST_INVALID_RELOC_5
&& r
<= R_SH_LAST_INVALID_RELOC_5
)
488 || (r
>= R_SH_FIRST_INVALID_RELOC_6
&& r
<= R_SH_LAST_INVALID_RELOC_6
))
490 /* xgettext:c-format */
491 _bfd_error_handler (_("%B: unrecognised SH reloc number: %d"),
493 bfd_set_error (bfd_error_bad_value
);
497 cache_ptr
->howto
= get_howto_table (abfd
) + r
;
500 /* This function handles relaxing for SH ELF. See the corresponding
501 function in coff-sh.c for a description of what this does. FIXME:
502 There is a lot of duplication here between this code and the COFF
503 specific code. The format of relocs and symbols is wound deeply
504 into this code, but it would still be better if the duplication
505 could be eliminated somehow. Note in particular that although both
506 functions use symbols like R_SH_CODE, those symbols have different
507 values; in coff-sh.c they come from include/coff/sh.h, whereas here
508 they come from enum elf_sh_reloc_type in include/elf/sh.h. */
511 sh_elf_relax_section (bfd
*abfd
, asection
*sec
,
512 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
514 Elf_Internal_Shdr
*symtab_hdr
;
515 Elf_Internal_Rela
*internal_relocs
;
516 bfd_boolean have_code
;
517 Elf_Internal_Rela
*irel
, *irelend
;
518 bfd_byte
*contents
= NULL
;
519 Elf_Internal_Sym
*isymbuf
= NULL
;
523 if (bfd_link_relocatable (link_info
)
524 || (sec
->flags
& SEC_RELOC
) == 0
525 || sec
->reloc_count
== 0)
528 #ifdef INCLUDE_SHMEDIA
529 if (elf_section_data (sec
)->this_hdr
.sh_flags
530 & (SHF_SH5_ISA32
| SHF_SH5_ISA32_MIXED
))
536 symtab_hdr
= &elf_symtab_hdr (abfd
);
538 internal_relocs
= (_bfd_elf_link_read_relocs
539 (abfd
, sec
, NULL
, (Elf_Internal_Rela
*) NULL
,
540 link_info
->keep_memory
));
541 if (internal_relocs
== NULL
)
546 irelend
= internal_relocs
+ sec
->reloc_count
;
547 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
549 bfd_vma laddr
, paddr
, symval
;
551 Elf_Internal_Rela
*irelfn
, *irelscan
, *irelcount
;
554 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_CODE
)
557 if (ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_USES
)
560 /* Get the section contents. */
561 if (contents
== NULL
)
563 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
564 contents
= elf_section_data (sec
)->this_hdr
.contents
;
567 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
572 /* The r_addend field of the R_SH_USES reloc will point us to
573 the register load. The 4 is because the r_addend field is
574 computed as though it were a jump offset, which are based
575 from 4 bytes after the jump instruction. */
576 laddr
= irel
->r_offset
+ 4 + irel
->r_addend
;
577 if (laddr
>= sec
->size
)
579 /* xgettext:c-format */
580 _bfd_error_handler (_("%B: 0x%lx: warning: bad R_SH_USES offset"),
581 abfd
, (unsigned long) irel
->r_offset
);
584 insn
= bfd_get_16 (abfd
, contents
+ laddr
);
586 /* If the instruction is not mov.l NN,rN, we don't know what to
588 if ((insn
& 0xf000) != 0xd000)
591 /* xgettext:c-format */
592 (_("%B: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
593 abfd
, (unsigned long) irel
->r_offset
, insn
);
597 /* Get the address from which the register is being loaded. The
598 displacement in the mov.l instruction is quadrupled. It is a
599 displacement from four bytes after the movl instruction, but,
600 before adding in the PC address, two least significant bits
601 of the PC are cleared. We assume that the section is aligned
602 on a four byte boundary. */
605 paddr
+= (laddr
+ 4) &~ (bfd_vma
) 3;
606 if (paddr
>= sec
->size
)
609 /* xgettext:c-format */
610 (_("%B: 0x%lx: warning: bad R_SH_USES load offset"),
611 abfd
, (unsigned long) irel
->r_offset
);
615 /* Get the reloc for the address from which the register is
616 being loaded. This reloc will tell us which function is
617 actually being called. */
618 for (irelfn
= internal_relocs
; irelfn
< irelend
; irelfn
++)
619 if (irelfn
->r_offset
== paddr
620 && ELF32_R_TYPE (irelfn
->r_info
) == (int) R_SH_DIR32
)
622 if (irelfn
>= irelend
)
625 /* xgettext:c-format */
626 (_("%B: 0x%lx: warning: could not find expected reloc"),
627 abfd
, (unsigned long) paddr
);
631 /* Read this BFD's symbols if we haven't done so already. */
632 if (isymbuf
== NULL
&& symtab_hdr
->sh_info
!= 0)
634 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
636 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
637 symtab_hdr
->sh_info
, 0,
643 /* Get the value of the symbol referred to by the reloc. */
644 if (ELF32_R_SYM (irelfn
->r_info
) < symtab_hdr
->sh_info
)
646 /* A local symbol. */
647 Elf_Internal_Sym
*isym
;
649 isym
= isymbuf
+ ELF32_R_SYM (irelfn
->r_info
);
651 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd
, sec
))
654 /* xgettext:c-format */
655 (_("%B: 0x%lx: warning: symbol in unexpected section"),
656 abfd
, (unsigned long) paddr
);
660 symval
= (isym
->st_value
661 + sec
->output_section
->vma
662 + sec
->output_offset
);
667 struct elf_link_hash_entry
*h
;
669 indx
= ELF32_R_SYM (irelfn
->r_info
) - symtab_hdr
->sh_info
;
670 h
= elf_sym_hashes (abfd
)[indx
];
671 BFD_ASSERT (h
!= NULL
);
672 if (h
->root
.type
!= bfd_link_hash_defined
673 && h
->root
.type
!= bfd_link_hash_defweak
)
675 /* This appears to be a reference to an undefined
676 symbol. Just ignore it--it will be caught by the
677 regular reloc processing. */
681 symval
= (h
->root
.u
.def
.value
682 + h
->root
.u
.def
.section
->output_section
->vma
683 + h
->root
.u
.def
.section
->output_offset
);
686 if (get_howto_table (abfd
)[R_SH_DIR32
].partial_inplace
)
687 symval
+= bfd_get_32 (abfd
, contents
+ paddr
);
689 symval
+= irelfn
->r_addend
;
691 /* See if this function call can be shortened. */
694 + sec
->output_section
->vma
697 /* A branch to an address beyond ours might be increased by an
698 .align that doesn't move when bytes behind us are deleted.
699 So, we add some slop in this calculation to allow for
701 if (foff
< -0x1000 || foff
>= 0x1000 - 8)
703 /* After all that work, we can't shorten this function call. */
707 /* Shorten the function call. */
709 /* For simplicity of coding, we are going to modify the section
710 contents, the section relocs, and the BFD symbol table. We
711 must tell the rest of the code not to free up this
712 information. It would be possible to instead create a table
713 of changes which have to be made, as is done in coff-mips.c;
714 that would be more work, but would require less memory when
715 the linker is run. */
717 elf_section_data (sec
)->relocs
= internal_relocs
;
718 elf_section_data (sec
)->this_hdr
.contents
= contents
;
719 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
721 /* Replace the jmp/jsr with a bra/bsr. */
723 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
724 replace the jmp/jsr with a bra/bsr. */
725 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_SH_IND12W
);
726 /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
727 here, but that only checks if the symbol is an external symbol,
728 not if the symbol is in a different section. Besides, we need
729 a consistent meaning for the relocation, so we just assume here that
730 the value of the symbol is not available. */
732 /* We can't fully resolve this yet, because the external
733 symbol value may be changed by future relaxing. We let
734 the final link phase handle it. */
735 if (bfd_get_16 (abfd
, contents
+ irel
->r_offset
) & 0x0020)
736 bfd_put_16 (abfd
, (bfd_vma
) 0xa000, contents
+ irel
->r_offset
);
738 bfd_put_16 (abfd
, (bfd_vma
) 0xb000, contents
+ irel
->r_offset
);
742 /* When we calculated the symbol "value" we had an offset in the
743 DIR32's word in memory (we read and add it above). However,
744 the jsr we create does NOT have this offset encoded, so we
745 have to add it to the addend to preserve it. */
746 irel
->r_addend
+= bfd_get_32 (abfd
, contents
+ paddr
);
748 /* See if there is another R_SH_USES reloc referring to the same
750 for (irelscan
= internal_relocs
; irelscan
< irelend
; irelscan
++)
751 if (ELF32_R_TYPE (irelscan
->r_info
) == (int) R_SH_USES
752 && laddr
== irelscan
->r_offset
+ 4 + irelscan
->r_addend
)
754 if (irelscan
< irelend
)
756 /* Some other function call depends upon this register load,
757 and we have not yet converted that function call.
758 Indeed, we may never be able to convert it. There is
759 nothing else we can do at this point. */
763 /* Look for a R_SH_COUNT reloc on the location where the
764 function address is stored. Do this before deleting any
765 bytes, to avoid confusion about the address. */
766 for (irelcount
= internal_relocs
; irelcount
< irelend
; irelcount
++)
767 if (irelcount
->r_offset
== paddr
768 && ELF32_R_TYPE (irelcount
->r_info
) == (int) R_SH_COUNT
)
771 /* Delete the register load. */
772 if (! sh_elf_relax_delete_bytes (abfd
, sec
, laddr
, 2))
775 /* That will change things, so, just in case it permits some
776 other function call to come within range, we should relax
777 again. Note that this is not required, and it may be slow. */
780 /* Now check whether we got a COUNT reloc. */
781 if (irelcount
>= irelend
)
784 /* xgettext:c-format */
785 (_("%B: 0x%lx: warning: could not find expected COUNT reloc"),
786 abfd
, (unsigned long) paddr
);
790 /* The number of uses is stored in the r_addend field. We've
792 if (irelcount
->r_addend
== 0)
794 /* xgettext:c-format */
795 _bfd_error_handler (_("%B: 0x%lx: warning: bad count"),
796 abfd
, (unsigned long) paddr
);
800 --irelcount
->r_addend
;
802 /* If there are no more uses, we can delete the address. Reload
803 the address from irelfn, in case it was changed by the
804 previous call to sh_elf_relax_delete_bytes. */
805 if (irelcount
->r_addend
== 0)
807 if (! sh_elf_relax_delete_bytes (abfd
, sec
, irelfn
->r_offset
, 4))
811 /* We've done all we can with that function call. */
814 /* Look for load and store instructions that we can align on four
816 if ((elf_elfheader (abfd
)->e_flags
& EF_SH_MACH_MASK
) != EF_SH4
821 /* Get the section contents. */
822 if (contents
== NULL
)
824 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
825 contents
= elf_section_data (sec
)->this_hdr
.contents
;
828 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
833 if (! sh_elf_align_loads (abfd
, sec
, internal_relocs
, contents
,
839 elf_section_data (sec
)->relocs
= internal_relocs
;
840 elf_section_data (sec
)->this_hdr
.contents
= contents
;
841 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
846 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
848 if (! link_info
->keep_memory
)
852 /* Cache the symbols for elf_link_input_bfd. */
853 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
858 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
860 if (! link_info
->keep_memory
)
864 /* Cache the section contents for elf_link_input_bfd. */
865 elf_section_data (sec
)->this_hdr
.contents
= contents
;
869 if (internal_relocs
!= NULL
870 && elf_section_data (sec
)->relocs
!= internal_relocs
)
871 free (internal_relocs
);
877 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
880 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
882 if (internal_relocs
!= NULL
883 && elf_section_data (sec
)->relocs
!= internal_relocs
)
884 free (internal_relocs
);
889 /* Delete some bytes from a section while relaxing. FIXME: There is a
890 lot of duplication between this function and sh_relax_delete_bytes
894 sh_elf_relax_delete_bytes (bfd
*abfd
, asection
*sec
, bfd_vma addr
,
897 Elf_Internal_Shdr
*symtab_hdr
;
898 unsigned int sec_shndx
;
900 Elf_Internal_Rela
*irel
, *irelend
;
901 Elf_Internal_Rela
*irelalign
;
903 Elf_Internal_Sym
*isymbuf
, *isym
, *isymend
;
904 struct elf_link_hash_entry
**sym_hashes
;
905 struct elf_link_hash_entry
**end_hashes
;
906 unsigned int symcount
;
909 symtab_hdr
= &elf_symtab_hdr (abfd
);
910 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
912 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
914 contents
= elf_section_data (sec
)->this_hdr
.contents
;
916 /* The deletion must stop at the next ALIGN reloc for an aligment
917 power larger than the number of bytes we are deleting. */
922 irel
= elf_section_data (sec
)->relocs
;
923 irelend
= irel
+ sec
->reloc_count
;
924 for (; irel
< irelend
; irel
++)
926 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_ALIGN
927 && irel
->r_offset
> addr
928 && count
< (1 << irel
->r_addend
))
931 toaddr
= irel
->r_offset
;
936 /* Actually delete the bytes. */
937 memmove (contents
+ addr
, contents
+ addr
+ count
,
938 (size_t) (toaddr
- addr
- count
));
939 if (irelalign
== NULL
)
945 #define NOP_OPCODE (0x0009)
947 BFD_ASSERT ((count
& 1) == 0);
948 for (i
= 0; i
< count
; i
+= 2)
949 bfd_put_16 (abfd
, (bfd_vma
) NOP_OPCODE
, contents
+ toaddr
- count
+ i
);
952 /* Adjust all the relocs. */
953 for (irel
= elf_section_data (sec
)->relocs
; irel
< irelend
; irel
++)
955 bfd_vma nraddr
, stop
;
958 int off
, adjust
, oinsn
;
959 bfd_signed_vma voff
= 0;
960 bfd_boolean overflow
;
962 /* Get the new reloc address. */
963 nraddr
= irel
->r_offset
;
964 if ((irel
->r_offset
> addr
965 && irel
->r_offset
< toaddr
)
966 || (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_ALIGN
967 && irel
->r_offset
== toaddr
))
970 /* See if this reloc was for the bytes we have deleted, in which
971 case we no longer care about it. Don't delete relocs which
972 represent addresses, though. */
973 if (irel
->r_offset
>= addr
974 && irel
->r_offset
< addr
+ count
975 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_ALIGN
976 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_CODE
977 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_DATA
978 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_LABEL
)
979 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
982 /* If this is a PC relative reloc, see if the range it covers
983 includes the bytes we have deleted. */
984 switch ((enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
))
993 start
= irel
->r_offset
;
994 insn
= bfd_get_16 (abfd
, contents
+ nraddr
);
998 switch ((enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
))
1001 start
= stop
= addr
;
1005 /* If this reloc is against a symbol defined in this
1006 section, and the symbol will not be adjusted below, we
1007 must check the addend to see it will put the value in
1008 range to be adjusted, and hence must be changed. */
1009 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
1011 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
1012 if (isym
->st_shndx
== sec_shndx
1013 && (isym
->st_value
<= addr
1014 || isym
->st_value
>= toaddr
))
1018 if (get_howto_table (abfd
)[R_SH_DIR32
].partial_inplace
)
1020 val
= bfd_get_32 (abfd
, contents
+ nraddr
);
1021 val
+= isym
->st_value
;
1022 if (val
> addr
&& val
< toaddr
)
1023 bfd_put_32 (abfd
, val
- count
, contents
+ nraddr
);
1027 val
= isym
->st_value
+ irel
->r_addend
;
1028 if (val
> addr
&& val
< toaddr
)
1029 irel
->r_addend
-= count
;
1033 start
= stop
= addr
;
1040 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ 4 + off
* 2);
1047 /* This has been made by previous relaxation. Since the
1048 relocation will be against an external symbol, the
1049 final relocation will just do the right thing. */
1050 start
= stop
= addr
;
1056 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ 4 + off
* 2);
1058 /* The addend will be against the section symbol, thus
1059 for adjusting the addend, the relevant start is the
1060 start of the section.
1061 N.B. If we want to abandon in-place changes here and
1062 test directly using symbol + addend, we have to take into
1063 account that the addend has already been adjusted by -4. */
1064 if (stop
> addr
&& stop
< toaddr
)
1065 irel
->r_addend
-= count
;
1071 stop
= start
+ 4 + off
* 2;
1076 stop
= (start
& ~(bfd_vma
) 3) + 4 + off
* 4;
1082 /* These relocs types represent
1084 The r_addend field holds the difference between the reloc
1085 address and L1. That is the start of the reloc, and
1086 adding in the contents gives us the top. We must adjust
1087 both the r_offset field and the section contents.
1088 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
1089 and the elf bfd r_offset is called r_vaddr. */
1091 stop
= irel
->r_offset
;
1092 start
= (bfd_vma
) ((bfd_signed_vma
) stop
- (long) irel
->r_addend
);
1096 && (stop
<= addr
|| stop
>= toaddr
))
1097 irel
->r_addend
+= count
;
1098 else if (stop
> addr
1100 && (start
<= addr
|| start
>= toaddr
))
1101 irel
->r_addend
-= count
;
1103 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_SWITCH16
)
1104 voff
= bfd_get_signed_16 (abfd
, contents
+ nraddr
);
1105 else if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_SWITCH8
)
1106 voff
= bfd_get_8 (abfd
, contents
+ nraddr
);
1108 voff
= bfd_get_signed_32 (abfd
, contents
+ nraddr
);
1109 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ voff
);
1114 start
= irel
->r_offset
;
1115 stop
= (bfd_vma
) ((bfd_signed_vma
) start
1116 + (long) irel
->r_addend
1123 && (stop
<= addr
|| stop
>= toaddr
))
1125 else if (stop
> addr
1127 && (start
<= addr
|| start
>= toaddr
))
1136 switch ((enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
))
1145 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1147 bfd_put_16 (abfd
, (bfd_vma
) insn
, contents
+ nraddr
);
1152 if ((oinsn
& 0xf000) != (insn
& 0xf000))
1154 bfd_put_16 (abfd
, (bfd_vma
) insn
, contents
+ nraddr
);
1158 BFD_ASSERT (adjust
== count
|| count
>= 4);
1163 if ((irel
->r_offset
& 3) == 0)
1166 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1168 bfd_put_16 (abfd
, (bfd_vma
) insn
, contents
+ nraddr
);
1173 if (voff
< 0 || voff
>= 0xff)
1175 bfd_put_8 (abfd
, voff
, contents
+ nraddr
);
1180 if (voff
< - 0x8000 || voff
>= 0x8000)
1182 bfd_put_signed_16 (abfd
, (bfd_vma
) voff
, contents
+ nraddr
);
1187 bfd_put_signed_32 (abfd
, (bfd_vma
) voff
, contents
+ nraddr
);
1191 irel
->r_addend
+= adjust
;
1198 /* xgettext:c-format */
1199 (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
1200 abfd
, (unsigned long) irel
->r_offset
);
1201 bfd_set_error (bfd_error_bad_value
);
1206 irel
->r_offset
= nraddr
;
1209 /* Look through all the other sections. If there contain any IMM32
1210 relocs against internal symbols which we are not going to adjust
1211 below, we may need to adjust the addends. */
1212 for (o
= abfd
->sections
; o
!= NULL
; o
= o
->next
)
1214 Elf_Internal_Rela
*internal_relocs
;
1215 Elf_Internal_Rela
*irelscan
, *irelscanend
;
1216 bfd_byte
*ocontents
;
1219 || (o
->flags
& SEC_RELOC
) == 0
1220 || o
->reloc_count
== 0)
1223 /* We always cache the relocs. Perhaps, if info->keep_memory is
1224 FALSE, we should free them, if we are permitted to, when we
1225 leave sh_coff_relax_section. */
1226 internal_relocs
= (_bfd_elf_link_read_relocs
1227 (abfd
, o
, NULL
, (Elf_Internal_Rela
*) NULL
, TRUE
));
1228 if (internal_relocs
== NULL
)
1232 irelscanend
= internal_relocs
+ o
->reloc_count
;
1233 for (irelscan
= internal_relocs
; irelscan
< irelscanend
; irelscan
++)
1235 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
1236 if (ELF32_R_TYPE (irelscan
->r_info
) == (int) R_SH_SWITCH32
)
1238 bfd_vma start
, stop
;
1239 bfd_signed_vma voff
;
1241 if (ocontents
== NULL
)
1243 if (elf_section_data (o
)->this_hdr
.contents
!= NULL
)
1244 ocontents
= elf_section_data (o
)->this_hdr
.contents
;
1247 /* We always cache the section contents.
1248 Perhaps, if info->keep_memory is FALSE, we
1249 should free them, if we are permitted to,
1250 when we leave sh_coff_relax_section. */
1251 if (!bfd_malloc_and_get_section (abfd
, o
, &ocontents
))
1253 if (ocontents
!= NULL
)
1258 elf_section_data (o
)->this_hdr
.contents
= ocontents
;
1262 stop
= irelscan
->r_offset
;
1264 = (bfd_vma
) ((bfd_signed_vma
) stop
- (long) irelscan
->r_addend
);
1266 /* STOP is in a different section, so it won't change. */
1267 if (start
> addr
&& start
< toaddr
)
1268 irelscan
->r_addend
+= count
;
1270 voff
= bfd_get_signed_32 (abfd
, ocontents
+ irelscan
->r_offset
);
1271 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ voff
);
1275 && (stop
<= addr
|| stop
>= toaddr
))
1276 bfd_put_signed_32 (abfd
, (bfd_vma
) voff
+ count
,
1277 ocontents
+ irelscan
->r_offset
);
1278 else if (stop
> addr
1280 && (start
<= addr
|| start
>= toaddr
))
1281 bfd_put_signed_32 (abfd
, (bfd_vma
) voff
- count
,
1282 ocontents
+ irelscan
->r_offset
);
1285 if (ELF32_R_TYPE (irelscan
->r_info
) != (int) R_SH_DIR32
)
1288 if (ELF32_R_SYM (irelscan
->r_info
) >= symtab_hdr
->sh_info
)
1292 isym
= isymbuf
+ ELF32_R_SYM (irelscan
->r_info
);
1293 if (isym
->st_shndx
== sec_shndx
1294 && (isym
->st_value
<= addr
1295 || isym
->st_value
>= toaddr
))
1299 if (ocontents
== NULL
)
1301 if (elf_section_data (o
)->this_hdr
.contents
!= NULL
)
1302 ocontents
= elf_section_data (o
)->this_hdr
.contents
;
1305 /* We always cache the section contents.
1306 Perhaps, if info->keep_memory is FALSE, we
1307 should free them, if we are permitted to,
1308 when we leave sh_coff_relax_section. */
1309 if (!bfd_malloc_and_get_section (abfd
, o
, &ocontents
))
1311 if (ocontents
!= NULL
)
1316 elf_section_data (o
)->this_hdr
.contents
= ocontents
;
1320 val
= bfd_get_32 (abfd
, ocontents
+ irelscan
->r_offset
);
1321 val
+= isym
->st_value
;
1322 if (val
> addr
&& val
< toaddr
)
1323 bfd_put_32 (abfd
, val
- count
,
1324 ocontents
+ irelscan
->r_offset
);
1329 /* Adjust the local symbols defined in this section. */
1330 isymend
= isymbuf
+ symtab_hdr
->sh_info
;
1331 for (isym
= isymbuf
; isym
< isymend
; isym
++)
1333 if (isym
->st_shndx
== sec_shndx
1334 && isym
->st_value
> addr
1335 && isym
->st_value
< toaddr
)
1336 isym
->st_value
-= count
;
1339 /* Now adjust the global symbols defined in this section. */
1340 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
1341 - symtab_hdr
->sh_info
);
1342 sym_hashes
= elf_sym_hashes (abfd
);
1343 end_hashes
= sym_hashes
+ symcount
;
1344 for (; sym_hashes
< end_hashes
; sym_hashes
++)
1346 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
1347 if ((sym_hash
->root
.type
== bfd_link_hash_defined
1348 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
1349 && sym_hash
->root
.u
.def
.section
== sec
1350 && sym_hash
->root
.u
.def
.value
> addr
1351 && sym_hash
->root
.u
.def
.value
< toaddr
)
1353 sym_hash
->root
.u
.def
.value
-= count
;
1357 /* See if we can move the ALIGN reloc forward. We have adjusted
1358 r_offset for it already. */
1359 if (irelalign
!= NULL
)
1361 bfd_vma alignto
, alignaddr
;
1363 alignto
= BFD_ALIGN (toaddr
, 1 << irelalign
->r_addend
);
1364 alignaddr
= BFD_ALIGN (irelalign
->r_offset
,
1365 1 << irelalign
->r_addend
);
1366 if (alignto
!= alignaddr
)
1368 /* Tail recursion. */
1369 return sh_elf_relax_delete_bytes (abfd
, sec
, alignaddr
,
1370 (int) (alignto
- alignaddr
));
1377 /* Look for loads and stores which we can align to four byte
1378 boundaries. This is like sh_align_loads in coff-sh.c. */
1381 sh_elf_align_loads (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
,
1382 Elf_Internal_Rela
*internal_relocs
,
1383 bfd_byte
*contents ATTRIBUTE_UNUSED
,
1384 bfd_boolean
*pswapped
)
1386 Elf_Internal_Rela
*irel
, *irelend
;
1387 bfd_vma
*labels
= NULL
;
1388 bfd_vma
*label
, *label_end
;
1393 irelend
= internal_relocs
+ sec
->reloc_count
;
1395 /* Get all the addresses with labels on them. */
1396 amt
= sec
->reloc_count
;
1397 amt
*= sizeof (bfd_vma
);
1398 labels
= (bfd_vma
*) bfd_malloc (amt
);
1402 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1404 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_LABEL
)
1406 *label_end
= irel
->r_offset
;
1411 /* Note that the assembler currently always outputs relocs in
1412 address order. If that ever changes, this code will need to sort
1413 the label values and the relocs. */
1417 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1419 bfd_vma start
, stop
;
1421 if (ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_CODE
)
1424 start
= irel
->r_offset
;
1426 for (irel
++; irel
< irelend
; irel
++)
1427 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_DATA
)
1430 stop
= irel
->r_offset
;
1434 if (! _bfd_sh_align_load_span (abfd
, sec
, contents
, sh_elf_swap_insns
,
1435 internal_relocs
, &label
,
1436 label_end
, start
, stop
, pswapped
))
1451 /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
1454 sh_elf_swap_insns (bfd
*abfd
, asection
*sec
, void *relocs
,
1455 bfd_byte
*contents
, bfd_vma addr
)
1457 Elf_Internal_Rela
*internal_relocs
= (Elf_Internal_Rela
*) relocs
;
1458 unsigned short i1
, i2
;
1459 Elf_Internal_Rela
*irel
, *irelend
;
1461 /* Swap the instructions themselves. */
1462 i1
= bfd_get_16 (abfd
, contents
+ addr
);
1463 i2
= bfd_get_16 (abfd
, contents
+ addr
+ 2);
1464 bfd_put_16 (abfd
, (bfd_vma
) i2
, contents
+ addr
);
1465 bfd_put_16 (abfd
, (bfd_vma
) i1
, contents
+ addr
+ 2);
1467 /* Adjust all reloc addresses. */
1468 irelend
= internal_relocs
+ sec
->reloc_count
;
1469 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1471 enum elf_sh_reloc_type type
;
1474 /* There are a few special types of relocs that we don't want to
1475 adjust. These relocs do not apply to the instruction itself,
1476 but are only associated with the address. */
1477 type
= (enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
);
1478 if (type
== R_SH_ALIGN
1479 || type
== R_SH_CODE
1480 || type
== R_SH_DATA
1481 || type
== R_SH_LABEL
)
1484 /* If an R_SH_USES reloc points to one of the addresses being
1485 swapped, we must adjust it. It would be incorrect to do this
1486 for a jump, though, since we want to execute both
1487 instructions after the jump. (We have avoided swapping
1488 around a label, so the jump will not wind up executing an
1489 instruction it shouldn't). */
1490 if (type
== R_SH_USES
)
1494 off
= irel
->r_offset
+ 4 + irel
->r_addend
;
1496 irel
->r_offset
+= 2;
1497 else if (off
== addr
+ 2)
1498 irel
->r_offset
-= 2;
1501 if (irel
->r_offset
== addr
)
1503 irel
->r_offset
+= 2;
1506 else if (irel
->r_offset
== addr
+ 2)
1508 irel
->r_offset
-= 2;
1517 unsigned short insn
, oinsn
;
1518 bfd_boolean overflow
;
1520 loc
= contents
+ irel
->r_offset
;
1529 insn
= bfd_get_16 (abfd
, loc
);
1532 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1534 bfd_put_16 (abfd
, (bfd_vma
) insn
, loc
);
1538 insn
= bfd_get_16 (abfd
, loc
);
1541 if ((oinsn
& 0xf000) != (insn
& 0xf000))
1543 bfd_put_16 (abfd
, (bfd_vma
) insn
, loc
);
1547 /* This reloc ignores the least significant 3 bits of
1548 the program counter before adding in the offset.
1549 This means that if ADDR is at an even address, the
1550 swap will not affect the offset. If ADDR is an at an
1551 odd address, then the instruction will be crossing a
1552 four byte boundary, and must be adjusted. */
1553 if ((addr
& 3) != 0)
1555 insn
= bfd_get_16 (abfd
, loc
);
1558 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1560 bfd_put_16 (abfd
, (bfd_vma
) insn
, loc
);
1569 /* xgettext:c-format */
1570 (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
1571 abfd
, (unsigned long) irel
->r_offset
);
1572 bfd_set_error (bfd_error_bad_value
);
1580 #endif /* defined SH64_ELF */
1582 /* Describes one of the various PLT styles. */
1584 struct elf_sh_plt_info
1586 /* The template for the first PLT entry, or NULL if there is no special
1588 const bfd_byte
*plt0_entry
;
1590 /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */
1591 bfd_vma plt0_entry_size
;
1593 /* Index I is the offset into PLT0_ENTRY of a pointer to
1594 _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE
1595 if there is no such pointer. */
1596 bfd_vma plt0_got_fields
[3];
1598 /* The template for a symbol's PLT entry. */
1599 const bfd_byte
*symbol_entry
;
1601 /* The size of SYMBOL_ENTRY in bytes. */
1602 bfd_vma symbol_entry_size
;
1604 /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used
1605 on all targets. The comments by each member indicate the value
1606 that the field must hold. */
1608 bfd_vma got_entry
; /* the address of the symbol's .got.plt entry */
1609 bfd_vma plt
; /* .plt (or a branch to .plt on VxWorks) */
1610 bfd_vma reloc_offset
; /* the offset of the symbol's JMP_SLOT reloc */
1611 bfd_boolean got20
; /* TRUE if got_entry points to a movi20
1612 instruction (instead of a constant pool
1616 /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */
1617 bfd_vma symbol_resolve_offset
;
1619 /* A different PLT layout which can be used for the first
1620 MAX_SHORT_PLT entries. It must share the same plt0. NULL in
1622 const struct elf_sh_plt_info
*short_plt
;
1625 #ifdef INCLUDE_SHMEDIA
1627 /* The size in bytes of an entry in the procedure linkage table. */
1629 #define ELF_PLT_ENTRY_SIZE 64
1631 /* First entry in an absolute procedure linkage table look like this. */
1633 static const bfd_byte elf_sh_plt0_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1635 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 16, r17 */
1636 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
1637 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
1638 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1639 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
1640 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1641 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1642 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1643 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1644 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1645 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1646 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1647 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1648 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1649 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1650 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1653 static const bfd_byte elf_sh_plt0_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1655 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
1656 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
1657 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
1658 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1659 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
1660 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1661 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1662 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1663 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1664 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1665 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1666 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1667 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1668 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1669 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1670 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1673 /* Sebsequent entries in an absolute procedure linkage table look like
1676 static const bfd_byte elf_sh_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1678 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 16, r25 */
1679 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
1680 0x89, 0x90, 0x01, 0x90, /* ld.l r25, 0, r25 */
1681 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1682 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1683 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1684 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1685 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1686 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */
1687 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */
1688 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1689 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
1690 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
1691 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1692 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1693 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1696 static const bfd_byte elf_sh_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1698 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
1699 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
1700 0x90, 0x01, 0x90, 0x89, /* ld.l r25, 0, r25 */
1701 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1702 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1703 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1704 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1705 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1706 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */
1707 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */
1708 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1709 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
1710 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
1711 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1712 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1713 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1716 /* Entries in a PIC procedure linkage table look like this. */
1718 static const bfd_byte elf_sh_pic_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1720 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
1721 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
1722 0x40, 0xc2, 0x65, 0x90, /* ldx.l r12, r25, r25 */
1723 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1724 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1725 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1726 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1727 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1728 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
1729 0x00, 0xc8, 0x45, 0x10, /* add.l r12, r17, r17 */
1730 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
1731 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1732 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
1733 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
1734 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
1735 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1738 static const bfd_byte elf_sh_pic_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1740 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
1741 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
1742 0x90, 0x65, 0xc2, 0x40, /* ldx.l r12, r25, r25 */
1743 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1744 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1745 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1746 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1747 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1748 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
1749 0x10, 0x45, 0xc8, 0x00, /* add.l r12, r17, r17 */
1750 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
1751 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1752 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
1753 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
1754 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
1755 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1758 static const struct elf_sh_plt_info elf_sh_plts
[2][2] = {
1761 /* Big-endian non-PIC. */
1762 elf_sh_plt0_entry_be
,
1764 { 0, MINUS_ONE
, MINUS_ONE
},
1765 elf_sh_plt_entry_be
,
1767 { 0, 32, 48, FALSE
},
1768 33, /* includes ISA encoding */
1772 /* Little-endian non-PIC. */
1773 elf_sh_plt0_entry_le
,
1775 { 0, MINUS_ONE
, MINUS_ONE
},
1776 elf_sh_plt_entry_le
,
1778 { 0, 32, 48, FALSE
},
1779 33, /* includes ISA encoding */
1785 /* Big-endian PIC. */
1786 elf_sh_plt0_entry_be
,
1788 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1789 elf_sh_pic_plt_entry_be
,
1791 { 0, MINUS_ONE
, 52, FALSE
},
1792 33, /* includes ISA encoding */
1796 /* Little-endian PIC. */
1797 elf_sh_plt0_entry_le
,
1799 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1800 elf_sh_pic_plt_entry_le
,
1802 { 0, MINUS_ONE
, 52, FALSE
},
1803 33, /* includes ISA encoding */
1809 /* Return offset of the linker in PLT0 entry. */
1810 #define elf_sh_plt0_gotplt_offset(info) 0
1812 /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
1813 VALUE is the field's value and CODE_P is true if VALUE refers to code,
1816 On SH64, each 32-bit field is loaded by a movi/shori pair. */
1819 install_plt_field (bfd
*output_bfd
, bfd_boolean code_p
,
1820 unsigned long value
, bfd_byte
*addr
)
1823 bfd_put_32 (output_bfd
,
1824 bfd_get_32 (output_bfd
, addr
)
1825 | ((value
>> 6) & 0x3fffc00),
1827 bfd_put_32 (output_bfd
,
1828 bfd_get_32 (output_bfd
, addr
+ 4)
1829 | ((value
<< 10) & 0x3fffc00),
1833 /* Return the type of PLT associated with ABFD. PIC_P is true if
1834 the object is position-independent. */
1836 static const struct elf_sh_plt_info
*
1837 get_plt_info (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_boolean pic_p
)
1839 return &elf_sh_plts
[pic_p
][!bfd_big_endian (abfd
)];
1842 /* The size in bytes of an entry in the procedure linkage table. */
1844 #define ELF_PLT_ENTRY_SIZE 28
1846 /* First entry in an absolute procedure linkage table look like this. */
1848 /* Note - this code has been "optimised" not to use r2. r2 is used by
1849 GCC to return the address of large structures, so it should not be
1850 corrupted here. This does mean however, that this PLT does not conform
1851 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
1852 and r2 contains the GOT id. This version stores the GOT id in r0 and
1853 ignores the type. Loaders can easily detect this difference however,
1854 since the type will always be 0 or 8, and the GOT ids will always be
1855 greater than or equal to 12. */
1856 static const bfd_byte elf_sh_plt0_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1858 0xd0, 0x05, /* mov.l 2f,r0 */
1859 0x60, 0x02, /* mov.l @r0,r0 */
1860 0x2f, 0x06, /* mov.l r0,@-r15 */
1861 0xd0, 0x03, /* mov.l 1f,r0 */
1862 0x60, 0x02, /* mov.l @r0,r0 */
1863 0x40, 0x2b, /* jmp @r0 */
1864 0x60, 0xf6, /* mov.l @r15+,r0 */
1865 0x00, 0x09, /* nop */
1866 0x00, 0x09, /* nop */
1867 0x00, 0x09, /* nop */
1868 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1869 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1872 static const bfd_byte elf_sh_plt0_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1874 0x05, 0xd0, /* mov.l 2f,r0 */
1875 0x02, 0x60, /* mov.l @r0,r0 */
1876 0x06, 0x2f, /* mov.l r0,@-r15 */
1877 0x03, 0xd0, /* mov.l 1f,r0 */
1878 0x02, 0x60, /* mov.l @r0,r0 */
1879 0x2b, 0x40, /* jmp @r0 */
1880 0xf6, 0x60, /* mov.l @r15+,r0 */
1881 0x09, 0x00, /* nop */
1882 0x09, 0x00, /* nop */
1883 0x09, 0x00, /* nop */
1884 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1885 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1888 /* Sebsequent entries in an absolute procedure linkage table look like
1891 static const bfd_byte elf_sh_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1893 0xd0, 0x04, /* mov.l 1f,r0 */
1894 0x60, 0x02, /* mov.l @(r0,r12),r0 */
1895 0xd1, 0x02, /* mov.l 0f,r1 */
1896 0x40, 0x2b, /* jmp @r0 */
1897 0x60, 0x13, /* mov r1,r0 */
1898 0xd1, 0x03, /* mov.l 2f,r1 */
1899 0x40, 0x2b, /* jmp @r0 */
1900 0x00, 0x09, /* nop */
1901 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1902 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1903 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1906 static const bfd_byte elf_sh_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1908 0x04, 0xd0, /* mov.l 1f,r0 */
1909 0x02, 0x60, /* mov.l @r0,r0 */
1910 0x02, 0xd1, /* mov.l 0f,r1 */
1911 0x2b, 0x40, /* jmp @r0 */
1912 0x13, 0x60, /* mov r1,r0 */
1913 0x03, 0xd1, /* mov.l 2f,r1 */
1914 0x2b, 0x40, /* jmp @r0 */
1915 0x09, 0x00, /* nop */
1916 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1917 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1918 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1921 /* Entries in a PIC procedure linkage table look like this. */
1923 static const bfd_byte elf_sh_pic_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1925 0xd0, 0x04, /* mov.l 1f,r0 */
1926 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1927 0x40, 0x2b, /* jmp @r0 */
1928 0x00, 0x09, /* nop */
1929 0x50, 0xc2, /* mov.l @(8,r12),r0 */
1930 0xd1, 0x03, /* mov.l 2f,r1 */
1931 0x40, 0x2b, /* jmp @r0 */
1932 0x50, 0xc1, /* mov.l @(4,r12),r0 */
1933 0x00, 0x09, /* nop */
1934 0x00, 0x09, /* nop */
1935 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1936 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1939 static const bfd_byte elf_sh_pic_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1941 0x04, 0xd0, /* mov.l 1f,r0 */
1942 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1943 0x2b, 0x40, /* jmp @r0 */
1944 0x09, 0x00, /* nop */
1945 0xc2, 0x50, /* mov.l @(8,r12),r0 */
1946 0x03, 0xd1, /* mov.l 2f,r1 */
1947 0x2b, 0x40, /* jmp @r0 */
1948 0xc1, 0x50, /* mov.l @(4,r12),r0 */
1949 0x09, 0x00, /* nop */
1950 0x09, 0x00, /* nop */
1951 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1952 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1955 static const struct elf_sh_plt_info elf_sh_plts
[2][2] = {
1958 /* Big-endian non-PIC. */
1959 elf_sh_plt0_entry_be
,
1961 { MINUS_ONE
, 24, 20 },
1962 elf_sh_plt_entry_be
,
1964 { 20, 16, 24, FALSE
},
1969 /* Little-endian non-PIC. */
1970 elf_sh_plt0_entry_le
,
1972 { MINUS_ONE
, 24, 20 },
1973 elf_sh_plt_entry_le
,
1975 { 20, 16, 24, FALSE
},
1982 /* Big-endian PIC. */
1983 elf_sh_plt0_entry_be
,
1985 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1986 elf_sh_pic_plt_entry_be
,
1988 { 20, MINUS_ONE
, 24, FALSE
},
1993 /* Little-endian PIC. */
1994 elf_sh_plt0_entry_le
,
1996 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1997 elf_sh_pic_plt_entry_le
,
1999 { 20, MINUS_ONE
, 24, FALSE
},
2006 #define VXWORKS_PLT_HEADER_SIZE 12
2007 #define VXWORKS_PLT_ENTRY_SIZE 24
2009 static const bfd_byte vxworks_sh_plt0_entry_be
[VXWORKS_PLT_HEADER_SIZE
] =
2011 0xd1, 0x01, /* mov.l @(8,pc),r1 */
2012 0x61, 0x12, /* mov.l @r1,r1 */
2013 0x41, 0x2b, /* jmp @r1 */
2014 0x00, 0x09, /* nop */
2015 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
2018 static const bfd_byte vxworks_sh_plt0_entry_le
[VXWORKS_PLT_HEADER_SIZE
] =
2020 0x01, 0xd1, /* mov.l @(8,pc),r1 */
2021 0x12, 0x61, /* mov.l @r1,r1 */
2022 0x2b, 0x41, /* jmp @r1 */
2023 0x09, 0x00, /* nop */
2024 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
2027 static const bfd_byte vxworks_sh_plt_entry_be
[VXWORKS_PLT_ENTRY_SIZE
] =
2029 0xd0, 0x01, /* mov.l @(8,pc),r0 */
2030 0x60, 0x02, /* mov.l @r0,r0 */
2031 0x40, 0x2b, /* jmp @r0 */
2032 0x00, 0x09, /* nop */
2033 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
2034 0xd0, 0x01, /* mov.l @(8,pc),r0 */
2035 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */
2036 0x00, 0x09, /* nop */
2037 0x00, 0x09, /* nop */
2038 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2041 static const bfd_byte vxworks_sh_plt_entry_le
[VXWORKS_PLT_ENTRY_SIZE
] =
2043 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2044 0x02, 0x60, /* mov.l @r0,r0 */
2045 0x2b, 0x40, /* jmp @r0 */
2046 0x09, 0x00, /* nop */
2047 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
2048 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2049 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */
2050 0x09, 0x00, /* nop */
2051 0x09, 0x00, /* nop */
2052 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2055 static const bfd_byte vxworks_sh_pic_plt_entry_be
[VXWORKS_PLT_ENTRY_SIZE
] =
2057 0xd0, 0x01, /* mov.l @(8,pc),r0 */
2058 0x00, 0xce, /* mov.l @(r0,r12),r0 */
2059 0x40, 0x2b, /* jmp @r0 */
2060 0x00, 0x09, /* nop */
2061 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
2062 0xd0, 0x01, /* mov.l @(8,pc),r0 */
2063 0x51, 0xc2, /* mov.l @(8,r12),r1 */
2064 0x41, 0x2b, /* jmp @r1 */
2065 0x00, 0x09, /* nop */
2066 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2069 static const bfd_byte vxworks_sh_pic_plt_entry_le
[VXWORKS_PLT_ENTRY_SIZE
] =
2071 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2072 0xce, 0x00, /* mov.l @(r0,r12),r0 */
2073 0x2b, 0x40, /* jmp @r0 */
2074 0x09, 0x00, /* nop */
2075 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
2076 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2077 0xc2, 0x51, /* mov.l @(8,r12),r1 */
2078 0x2b, 0x41, /* jmp @r1 */
2079 0x09, 0x00, /* nop */
2080 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2083 static const struct elf_sh_plt_info vxworks_sh_plts
[2][2] = {
2086 /* Big-endian non-PIC. */
2087 vxworks_sh_plt0_entry_be
,
2088 VXWORKS_PLT_HEADER_SIZE
,
2089 { MINUS_ONE
, MINUS_ONE
, 8 },
2090 vxworks_sh_plt_entry_be
,
2091 VXWORKS_PLT_ENTRY_SIZE
,
2092 { 8, 14, 20, FALSE
},
2097 /* Little-endian non-PIC. */
2098 vxworks_sh_plt0_entry_le
,
2099 VXWORKS_PLT_HEADER_SIZE
,
2100 { MINUS_ONE
, MINUS_ONE
, 8 },
2101 vxworks_sh_plt_entry_le
,
2102 VXWORKS_PLT_ENTRY_SIZE
,
2103 { 8, 14, 20, FALSE
},
2110 /* Big-endian PIC. */
2113 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2114 vxworks_sh_pic_plt_entry_be
,
2115 VXWORKS_PLT_ENTRY_SIZE
,
2116 { 8, MINUS_ONE
, 20, FALSE
},
2121 /* Little-endian PIC. */
2124 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2125 vxworks_sh_pic_plt_entry_le
,
2126 VXWORKS_PLT_ENTRY_SIZE
,
2127 { 8, MINUS_ONE
, 20, FALSE
},
2134 /* FDPIC PLT entries. Two unimplemented optimizations for lazy
2135 binding are to omit the lazy binding stub when linking with -z now
2136 and to move lazy binding stubs into a separate region for better
2139 #define FDPIC_PLT_ENTRY_SIZE 28
2140 #define FDPIC_PLT_LAZY_OFFSET 20
2142 /* FIXME: The lazy binding stub requires a plt0 - which may need to be
2143 duplicated if it is out of range, or which can be inlined. So
2144 right now it is always inlined, which wastes a word per stub. It
2145 might be easier to handle the duplication if we put the lazy
2146 stubs separately. */
2148 static const bfd_byte fdpic_sh_plt_entry_be
[FDPIC_PLT_ENTRY_SIZE
] =
2150 0xd0, 0x02, /* mov.l @(12,pc),r0 */
2151 0x01, 0xce, /* mov.l @(r0,r12),r1 */
2152 0x70, 0x04, /* add #4, r0 */
2153 0x41, 0x2b, /* jmp @r1 */
2154 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
2155 0x00, 0x09, /* nop */
2156 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
2157 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2158 0x60, 0xc2, /* mov.l @r12,r0 */
2159 0x40, 0x2b, /* jmp @r0 */
2160 0x53, 0xc1, /* mov.l @(4,r12),r3 */
2161 0x00, 0x09, /* nop */
2164 static const bfd_byte fdpic_sh_plt_entry_le
[FDPIC_PLT_ENTRY_SIZE
] =
2166 0x02, 0xd0, /* mov.l @(12,pc),r0 */
2167 0xce, 0x01, /* mov.l @(r0,r12),r1 */
2168 0x04, 0x70, /* add #4, r0 */
2169 0x2b, 0x41, /* jmp @r1 */
2170 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
2171 0x09, 0x00, /* nop */
2172 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */
2173 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2174 0xc2, 0x60, /* mov.l @r12,r0 */
2175 0x2b, 0x40, /* jmp @r0 */
2176 0xc1, 0x53, /* mov.l @(4,r12),r3 */
2177 0x09, 0x00, /* nop */
2180 static const struct elf_sh_plt_info fdpic_sh_plts
[2] = {
2182 /* Big-endian PIC. */
2185 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2186 fdpic_sh_plt_entry_be
,
2187 FDPIC_PLT_ENTRY_SIZE
,
2188 { 12, MINUS_ONE
, 16, FALSE
},
2189 FDPIC_PLT_LAZY_OFFSET
,
2193 /* Little-endian PIC. */
2196 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2197 fdpic_sh_plt_entry_le
,
2198 FDPIC_PLT_ENTRY_SIZE
,
2199 { 12, MINUS_ONE
, 16, FALSE
},
2200 FDPIC_PLT_LAZY_OFFSET
,
2205 /* On SH2A, we can use the movi20 instruction to generate shorter PLT
2206 entries for the first 64K slots. We use the normal FDPIC PLT entry
2207 past that point; we could also use movi20s, which might be faster,
2208 but would not be any smaller. */
2210 #define FDPIC_SH2A_PLT_ENTRY_SIZE 24
2211 #define FDPIC_SH2A_PLT_LAZY_OFFSET 16
2213 static const bfd_byte fdpic_sh2a_plt_entry_be
[FDPIC_SH2A_PLT_ENTRY_SIZE
] =
2215 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
2216 0x01, 0xce, /* mov.l @(r0,r12),r1 */
2217 0x70, 0x04, /* add #4, r0 */
2218 0x41, 0x2b, /* jmp @r1 */
2219 0x0c, 0xce, /* mov.l @(r0,r12),r12 */
2220 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2221 0x60, 0xc2, /* mov.l @r12,r0 */
2222 0x40, 0x2b, /* jmp @r0 */
2223 0x53, 0xc1, /* mov.l @(4,r12),r3 */
2224 0x00, 0x09, /* nop */
2227 static const bfd_byte fdpic_sh2a_plt_entry_le
[FDPIC_SH2A_PLT_ENTRY_SIZE
] =
2229 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */
2230 0xce, 0x01, /* mov.l @(r0,r12),r1 */
2231 0x04, 0x70, /* add #4, r0 */
2232 0x2b, 0x41, /* jmp @r1 */
2233 0xce, 0x0c, /* mov.l @(r0,r12),r12 */
2234 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2235 0xc2, 0x60, /* mov.l @r12,r0 */
2236 0x2b, 0x40, /* jmp @r0 */
2237 0xc1, 0x53, /* mov.l @(4,r12),r3 */
2238 0x09, 0x00, /* nop */
2241 static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be
= {
2242 /* Big-endian FDPIC, max index 64K. */
2245 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2246 fdpic_sh2a_plt_entry_be
,
2247 FDPIC_SH2A_PLT_ENTRY_SIZE
,
2248 { 0, MINUS_ONE
, 12, TRUE
},
2249 FDPIC_SH2A_PLT_LAZY_OFFSET
,
2253 static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le
= {
2254 /* Little-endian FDPIC, max index 64K. */
2257 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2258 fdpic_sh2a_plt_entry_le
,
2259 FDPIC_SH2A_PLT_ENTRY_SIZE
,
2260 { 0, MINUS_ONE
, 12, TRUE
},
2261 FDPIC_SH2A_PLT_LAZY_OFFSET
,
2265 static const struct elf_sh_plt_info fdpic_sh2a_plts
[2] = {
2267 /* Big-endian PIC. */
2270 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2271 fdpic_sh_plt_entry_be
,
2272 FDPIC_PLT_ENTRY_SIZE
,
2273 { 12, MINUS_ONE
, 16, FALSE
},
2274 FDPIC_PLT_LAZY_OFFSET
,
2275 &fdpic_sh2a_short_plt_be
2278 /* Little-endian PIC. */
2281 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2282 fdpic_sh_plt_entry_le
,
2283 FDPIC_PLT_ENTRY_SIZE
,
2284 { 12, MINUS_ONE
, 16, FALSE
},
2285 FDPIC_PLT_LAZY_OFFSET
,
2286 &fdpic_sh2a_short_plt_le
2290 /* Return the type of PLT associated with ABFD. PIC_P is true if
2291 the object is position-independent. */
2293 static const struct elf_sh_plt_info
*
2294 get_plt_info (bfd
*abfd
, bfd_boolean pic_p
)
2296 if (fdpic_object_p (abfd
))
2298 /* If any input file requires SH2A we can use a shorter PLT
2300 if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd
)) & arch_sh2a_base
)
2301 return &fdpic_sh2a_plts
[!bfd_big_endian (abfd
)];
2303 return &fdpic_sh_plts
[!bfd_big_endian (abfd
)];
2305 if (vxworks_object_p (abfd
))
2306 return &vxworks_sh_plts
[pic_p
][!bfd_big_endian (abfd
)];
2307 return &elf_sh_plts
[pic_p
][!bfd_big_endian (abfd
)];
2310 /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
2311 VALUE is the field's value and CODE_P is true if VALUE refers to code,
2315 install_plt_field (bfd
*output_bfd
, bfd_boolean code_p ATTRIBUTE_UNUSED
,
2316 unsigned long value
, bfd_byte
*addr
)
2318 bfd_put_32 (output_bfd
, value
, addr
);
2322 /* The number of PLT entries which can use a shorter PLT, if any.
2323 Currently always 64K, since only SH-2A FDPIC uses this; a
2324 20-bit movi20 can address that many function descriptors below
2325 _GLOBAL_OFFSET_TABLE_. */
2326 #define MAX_SHORT_PLT 65536
2328 /* Return the index of the PLT entry at byte offset OFFSET. */
2331 get_plt_index (const struct elf_sh_plt_info
*info
, bfd_vma offset
)
2333 bfd_vma plt_index
= 0;
2335 offset
-= info
->plt0_entry_size
;
2336 if (info
->short_plt
!= NULL
)
2338 if (offset
> MAX_SHORT_PLT
* info
->short_plt
->symbol_entry_size
)
2340 plt_index
= MAX_SHORT_PLT
;
2341 offset
-= MAX_SHORT_PLT
* info
->short_plt
->symbol_entry_size
;
2344 info
= info
->short_plt
;
2346 return plt_index
+ offset
/ info
->symbol_entry_size
;
2349 /* Do the inverse operation. */
2352 get_plt_offset (const struct elf_sh_plt_info
*info
, bfd_vma plt_index
)
2356 if (info
->short_plt
!= NULL
)
2358 if (plt_index
> MAX_SHORT_PLT
)
2360 offset
= MAX_SHORT_PLT
* info
->short_plt
->symbol_entry_size
;
2361 plt_index
-= MAX_SHORT_PLT
;
2364 info
= info
->short_plt
;
2366 return (offset
+ info
->plt0_entry_size
2367 + (plt_index
* info
->symbol_entry_size
));
2370 /* The sh linker needs to keep track of the number of relocs that it
2371 decides to copy as dynamic relocs in check_relocs for each symbol.
2372 This is so that it can later discard them if they are found to be
2373 unnecessary. We store the information in a field extending the
2374 regular ELF linker hash table. */
2376 struct elf_sh_dyn_relocs
2378 struct elf_sh_dyn_relocs
*next
;
2380 /* The input section of the reloc. */
2383 /* Total number of relocs copied for the input section. */
2384 bfd_size_type count
;
2386 /* Number of pc-relative relocs copied for the input section. */
2387 bfd_size_type pc_count
;
2392 bfd_signed_vma refcount
;
2396 /* sh ELF linker hash entry. */
2398 struct elf_sh_link_hash_entry
2400 struct elf_link_hash_entry root
;
2402 #ifdef INCLUDE_SHMEDIA
2405 bfd_signed_vma refcount
;
2410 /* Track dynamic relocs copied for this symbol. */
2411 struct elf_sh_dyn_relocs
*dyn_relocs
;
2413 bfd_signed_vma gotplt_refcount
;
2415 /* A local function descriptor, for FDPIC. The refcount counts
2416 R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20
2417 relocations; the PLT and GOT entry are accounted
2418 for separately. After adjust_dynamic_symbol, the offset is
2419 MINUS_ONE if there is no local descriptor (dynamic linker
2420 managed and no PLT entry, or undefined weak non-dynamic).
2421 During check_relocs we do not yet know whether the local
2422 descriptor will be canonical. */
2423 union gotref funcdesc
;
2425 /* How many of the above refcounted relocations were R_SH_FUNCDESC,
2426 and thus require fixups or relocations. */
2427 bfd_signed_vma abs_funcdesc_refcount
;
2430 GOT_UNKNOWN
= 0, GOT_NORMAL
, GOT_TLS_GD
, GOT_TLS_IE
, GOT_FUNCDESC
2434 #define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
2436 struct sh_elf_obj_tdata
2438 struct elf_obj_tdata root
;
2440 /* got_type for each local got entry. */
2441 char *local_got_type
;
2443 /* Function descriptor refcount and offset for each local symbol. */
2444 union gotref
*local_funcdesc
;
2447 #define sh_elf_tdata(abfd) \
2448 ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
2450 #define sh_elf_local_got_type(abfd) \
2451 (sh_elf_tdata (abfd)->local_got_type)
2453 #define sh_elf_local_funcdesc(abfd) \
2454 (sh_elf_tdata (abfd)->local_funcdesc)
2456 #define is_sh_elf(bfd) \
2457 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2458 && elf_tdata (bfd) != NULL \
2459 && elf_object_id (bfd) == SH_ELF_DATA)
2461 /* Override the generic function because we need to store sh_elf_obj_tdata
2462 as the specific tdata. */
2465 sh_elf_mkobject (bfd
*abfd
)
2467 return bfd_elf_allocate_object (abfd
, sizeof (struct sh_elf_obj_tdata
),
2471 /* sh ELF linker hash table. */
2473 struct elf_sh_link_hash_table
2475 struct elf_link_hash_table root
;
2477 /* Short-cuts to get to dynamic linker sections. */
2485 asection
*sfuncdesc
;
2486 asection
*srelfuncdesc
;
2489 /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
2492 /* Small local sym cache. */
2493 struct sym_cache sym_cache
;
2495 /* A counter or offset to track a TLS got entry. */
2498 bfd_signed_vma refcount
;
2502 /* The type of PLT to use. */
2503 const struct elf_sh_plt_info
*plt_info
;
2505 /* True if the target system is VxWorks. */
2506 bfd_boolean vxworks_p
;
2508 /* True if the target system uses FDPIC. */
2509 bfd_boolean fdpic_p
;
2512 /* Traverse an sh ELF linker hash table. */
2514 #define sh_elf_link_hash_traverse(table, func, info) \
2515 (elf_link_hash_traverse \
2517 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
2520 /* Get the sh ELF linker hash table from a link_info structure. */
2522 #define sh_elf_hash_table(p) \
2523 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
2524 == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL)
2526 /* Create an entry in an sh ELF linker hash table. */
2528 static struct bfd_hash_entry
*
2529 sh_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
2530 struct bfd_hash_table
*table
,
2533 struct elf_sh_link_hash_entry
*ret
=
2534 (struct elf_sh_link_hash_entry
*) entry
;
2536 /* Allocate the structure if it has not already been allocated by a
2538 if (ret
== (struct elf_sh_link_hash_entry
*) NULL
)
2539 ret
= ((struct elf_sh_link_hash_entry
*)
2540 bfd_hash_allocate (table
,
2541 sizeof (struct elf_sh_link_hash_entry
)));
2542 if (ret
== (struct elf_sh_link_hash_entry
*) NULL
)
2543 return (struct bfd_hash_entry
*) ret
;
2545 /* Call the allocation method of the superclass. */
2546 ret
= ((struct elf_sh_link_hash_entry
*)
2547 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
2549 if (ret
!= (struct elf_sh_link_hash_entry
*) NULL
)
2551 ret
->dyn_relocs
= NULL
;
2552 ret
->gotplt_refcount
= 0;
2553 #ifdef INCLUDE_SHMEDIA
2554 ret
->datalabel_got
.refcount
= ret
->root
.got
.refcount
;
2556 ret
->funcdesc
.refcount
= 0;
2557 ret
->abs_funcdesc_refcount
= 0;
2558 ret
->got_type
= GOT_UNKNOWN
;
2561 return (struct bfd_hash_entry
*) ret
;
2564 /* Create an sh ELF linker hash table. */
2566 static struct bfd_link_hash_table
*
2567 sh_elf_link_hash_table_create (bfd
*abfd
)
2569 struct elf_sh_link_hash_table
*ret
;
2570 bfd_size_type amt
= sizeof (struct elf_sh_link_hash_table
);
2572 ret
= (struct elf_sh_link_hash_table
*) bfd_zmalloc (amt
);
2573 if (ret
== (struct elf_sh_link_hash_table
*) NULL
)
2576 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
2577 sh_elf_link_hash_newfunc
,
2578 sizeof (struct elf_sh_link_hash_entry
),
2585 ret
->vxworks_p
= vxworks_object_p (abfd
);
2586 ret
->fdpic_p
= fdpic_object_p (abfd
);
2588 return &ret
->root
.root
;
2592 sh_elf_omit_section_dynsym (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2593 struct bfd_link_info
*info
, asection
*p
)
2595 struct elf_sh_link_hash_table
*htab
= sh_elf_hash_table (info
);
2597 /* Non-FDPIC binaries do not need dynamic symbols for sections. */
2601 /* We need dynamic symbols for every section, since segments can
2602 relocate independently. */
2603 switch (elf_section_data (p
)->this_hdr
.sh_type
)
2607 /* If sh_type is yet undecided, assume it could be
2608 SHT_PROGBITS/SHT_NOBITS. */
2612 /* There shouldn't be section relative relocations
2613 against any other section. */
2619 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
2620 shortcuts to them in our hash table. */
2623 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
2625 struct elf_sh_link_hash_table
*htab
;
2627 if (! _bfd_elf_create_got_section (dynobj
, info
))
2630 htab
= sh_elf_hash_table (info
);
2634 htab
->sgot
= bfd_get_linker_section (dynobj
, ".got");
2635 htab
->sgotplt
= bfd_get_linker_section (dynobj
, ".got.plt");
2636 htab
->srelgot
= bfd_get_linker_section (dynobj
, ".rela.got");
2637 if (! htab
->sgot
|| ! htab
->sgotplt
|| ! htab
->srelgot
)
2640 htab
->sfuncdesc
= bfd_make_section_anyway_with_flags (dynobj
, ".got.funcdesc",
2641 (SEC_ALLOC
| SEC_LOAD
2644 | SEC_LINKER_CREATED
));
2645 if (htab
->sfuncdesc
== NULL
2646 || ! bfd_set_section_alignment (dynobj
, htab
->sfuncdesc
, 2))
2649 htab
->srelfuncdesc
= bfd_make_section_anyway_with_flags (dynobj
,
2650 ".rela.got.funcdesc",
2651 (SEC_ALLOC
| SEC_LOAD
2654 | SEC_LINKER_CREATED
2656 if (htab
->srelfuncdesc
== NULL
2657 || ! bfd_set_section_alignment (dynobj
, htab
->srelfuncdesc
, 2))
2660 /* Also create .rofixup. */
2661 htab
->srofixup
= bfd_make_section_anyway_with_flags (dynobj
, ".rofixup",
2662 (SEC_ALLOC
| SEC_LOAD
2665 | SEC_LINKER_CREATED
2667 if (htab
->srofixup
== NULL
2668 || ! bfd_set_section_alignment (dynobj
, htab
->srofixup
, 2))
2674 /* Create dynamic sections when linking against a dynamic object. */
2677 sh_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
2679 struct elf_sh_link_hash_table
*htab
;
2680 flagword flags
, pltflags
;
2682 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2685 switch (bed
->s
->arch_size
)
2696 bfd_set_error (bfd_error_bad_value
);
2700 htab
= sh_elf_hash_table (info
);
2704 if (htab
->root
.dynamic_sections_created
)
2707 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2708 .rel[a].bss sections. */
2710 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
2711 | SEC_LINKER_CREATED
);
2714 pltflags
|= SEC_CODE
;
2715 if (bed
->plt_not_loaded
)
2716 pltflags
&= ~ (SEC_LOAD
| SEC_HAS_CONTENTS
);
2717 if (bed
->plt_readonly
)
2718 pltflags
|= SEC_READONLY
;
2720 s
= bfd_make_section_anyway_with_flags (abfd
, ".plt", pltflags
);
2723 || ! bfd_set_section_alignment (abfd
, s
, bed
->plt_alignment
))
2726 if (bed
->want_plt_sym
)
2728 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2730 struct elf_link_hash_entry
*h
;
2731 struct bfd_link_hash_entry
*bh
= NULL
;
2733 if (! (_bfd_generic_link_add_one_symbol
2734 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
2735 (bfd_vma
) 0, (const char *) NULL
, FALSE
,
2736 get_elf_backend_data (abfd
)->collect
, &bh
)))
2739 h
= (struct elf_link_hash_entry
*) bh
;
2741 h
->type
= STT_OBJECT
;
2742 htab
->root
.hplt
= h
;
2744 if (bfd_link_pic (info
)
2745 && ! bfd_elf_link_record_dynamic_symbol (info
, h
))
2749 s
= bfd_make_section_anyway_with_flags (abfd
,
2750 bed
->default_use_rela_p
2751 ? ".rela.plt" : ".rel.plt",
2752 flags
| SEC_READONLY
);
2755 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
2758 if (htab
->sgot
== NULL
2759 && !create_got_section (abfd
, info
))
2762 if (bed
->want_dynbss
)
2764 /* The .dynbss section is a place to put symbols which are defined
2765 by dynamic objects, are referenced by regular objects, and are
2766 not functions. We must allocate space for them in the process
2767 image and use a R_*_COPY reloc to tell the dynamic linker to
2768 initialize them at run time. The linker script puts the .dynbss
2769 section into the .bss section of the final image. */
2770 s
= bfd_make_section_anyway_with_flags (abfd
, ".dynbss",
2771 SEC_ALLOC
| SEC_LINKER_CREATED
);
2776 /* The .rel[a].bss section holds copy relocs. This section is not
2777 normally needed. We need to create it here, though, so that the
2778 linker will map it to an output section. We can't just create it
2779 only if we need it, because we will not know whether we need it
2780 until we have seen all the input files, and the first time the
2781 main linker code calls BFD after examining all the input files
2782 (size_dynamic_sections) the input sections have already been
2783 mapped to the output sections. If the section turns out not to
2784 be needed, we can discard it later. We will never need this
2785 section when generating a shared object, since they do not use
2787 if (! bfd_link_pic (info
))
2789 s
= bfd_make_section_anyway_with_flags (abfd
,
2790 (bed
->default_use_rela_p
2791 ? ".rela.bss" : ".rel.bss"),
2792 flags
| SEC_READONLY
);
2795 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
2800 if (htab
->vxworks_p
)
2802 if (!elf_vxworks_create_dynamic_sections (abfd
, info
, &htab
->srelplt2
))
2809 /* Adjust a symbol defined by a dynamic object and referenced by a
2810 regular object. The current definition is in some section of the
2811 dynamic object, but we're not including those sections. We have to
2812 change the definition to something the rest of the link can
2816 sh_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
2817 struct elf_link_hash_entry
*h
)
2819 struct elf_sh_link_hash_table
*htab
;
2820 struct elf_sh_link_hash_entry
*eh
;
2821 struct elf_sh_dyn_relocs
*p
;
2824 htab
= sh_elf_hash_table (info
);
2828 /* Make sure we know what is going on here. */
2829 BFD_ASSERT (htab
->root
.dynobj
!= NULL
2831 || h
->u
.weakdef
!= NULL
2834 && !h
->def_regular
)));
2836 /* If this is a function, put it in the procedure linkage table. We
2837 will fill in the contents of the procedure linkage table later,
2838 when we know the address of the .got section. */
2839 if (h
->type
== STT_FUNC
2842 if (h
->plt
.refcount
<= 0
2843 || SYMBOL_CALLS_LOCAL (info
, h
)
2844 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
2845 && h
->root
.type
== bfd_link_hash_undefweak
))
2847 /* This case can occur if we saw a PLT reloc in an input
2848 file, but the symbol was never referred to by a dynamic
2849 object. In such a case, we don't actually need to build
2850 a procedure linkage table, and we can just do a REL32
2852 h
->plt
.offset
= (bfd_vma
) -1;
2859 h
->plt
.offset
= (bfd_vma
) -1;
2861 /* If this is a weak symbol, and there is a real definition, the
2862 processor independent code will have arranged for us to see the
2863 real definition first, and we can just use the same value. */
2864 if (h
->u
.weakdef
!= NULL
)
2866 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
2867 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
2868 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
2869 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
2870 if (info
->nocopyreloc
)
2871 h
->non_got_ref
= h
->u
.weakdef
->non_got_ref
;
2875 /* This is a reference to a symbol defined by a dynamic object which
2876 is not a function. */
2878 /* If we are creating a shared library, we must presume that the
2879 only references to the symbol are via the global offset table.
2880 For such cases we need not do anything here; the relocations will
2881 be handled correctly by relocate_section. */
2882 if (bfd_link_pic (info
))
2885 /* If there are no references to this symbol that do not use the
2886 GOT, we don't need to generate a copy reloc. */
2887 if (!h
->non_got_ref
)
2890 /* If -z nocopyreloc was given, we won't generate them either. */
2891 if (info
->nocopyreloc
)
2897 eh
= (struct elf_sh_link_hash_entry
*) h
;
2898 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2900 s
= p
->sec
->output_section
;
2901 if (s
!= NULL
&& (s
->flags
& (SEC_READONLY
| SEC_HAS_CONTENTS
)) != 0)
2905 /* If we didn't find any dynamic relocs in sections which needs the
2906 copy reloc, then we'll be keeping the dynamic relocs and avoiding
2914 /* We must allocate the symbol in our .dynbss section, which will
2915 become part of the .bss section of the executable. There will be
2916 an entry for this symbol in the .dynsym section. The dynamic
2917 object will contain position independent code, so all references
2918 from the dynamic object to this symbol will go through the global
2919 offset table. The dynamic linker will use the .dynsym entry to
2920 determine the address it must put in the global offset table, so
2921 both the dynamic object and the regular object will refer to the
2922 same memory location for the variable. */
2925 BFD_ASSERT (s
!= NULL
);
2927 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2928 copy the initial value out of the dynamic object and into the
2929 runtime process image. We need to remember the offset into the
2930 .rela.bss section we are going to use. */
2931 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
2935 srel
= htab
->srelbss
;
2936 BFD_ASSERT (srel
!= NULL
);
2937 srel
->size
+= sizeof (Elf32_External_Rela
);
2941 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
2944 /* Allocate space in .plt, .got and associated reloc sections for
2948 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
2950 struct bfd_link_info
*info
;
2951 struct elf_sh_link_hash_table
*htab
;
2952 struct elf_sh_link_hash_entry
*eh
;
2953 struct elf_sh_dyn_relocs
*p
;
2955 if (h
->root
.type
== bfd_link_hash_indirect
)
2958 info
= (struct bfd_link_info
*) inf
;
2959 htab
= sh_elf_hash_table (info
);
2963 eh
= (struct elf_sh_link_hash_entry
*) h
;
2964 if ((h
->got
.refcount
> 0
2966 && eh
->gotplt_refcount
> 0)
2968 /* The symbol has been forced local, or we have some direct got refs,
2969 so treat all the gotplt refs as got refs. */
2970 h
->got
.refcount
+= eh
->gotplt_refcount
;
2971 if (h
->plt
.refcount
>= eh
->gotplt_refcount
)
2972 h
->plt
.refcount
-= eh
->gotplt_refcount
;
2975 if (htab
->root
.dynamic_sections_created
2976 && h
->plt
.refcount
> 0
2977 && (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2978 || h
->root
.type
!= bfd_link_hash_undefweak
))
2980 /* Make sure this symbol is output as a dynamic symbol.
2981 Undefined weak syms won't yet be marked as dynamic. */
2982 if (h
->dynindx
== -1
2983 && !h
->forced_local
)
2985 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2989 if (bfd_link_pic (info
)
2990 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h
))
2992 asection
*s
= htab
->splt
;
2993 const struct elf_sh_plt_info
*plt_info
;
2995 /* If this is the first .plt entry, make room for the special
2998 s
->size
+= htab
->plt_info
->plt0_entry_size
;
3000 h
->plt
.offset
= s
->size
;
3002 /* If this symbol is not defined in a regular file, and we are
3003 not generating a shared library, then set the symbol to this
3004 location in the .plt. This is required to make function
3005 pointers compare as equal between the normal executable and
3006 the shared library. Skip this for FDPIC, since the
3007 function's address will be the address of the canonical
3008 function descriptor. */
3009 if (!htab
->fdpic_p
&& !bfd_link_pic (info
) && !h
->def_regular
)
3011 h
->root
.u
.def
.section
= s
;
3012 h
->root
.u
.def
.value
= h
->plt
.offset
;
3015 /* Make room for this entry. */
3016 plt_info
= htab
->plt_info
;
3017 if (plt_info
->short_plt
!= NULL
3018 && (get_plt_index (plt_info
->short_plt
, s
->size
) < MAX_SHORT_PLT
))
3019 plt_info
= plt_info
->short_plt
;
3020 s
->size
+= plt_info
->symbol_entry_size
;
3022 /* We also need to make an entry in the .got.plt section, which
3023 will be placed in the .got section by the linker script. */
3025 htab
->sgotplt
->size
+= 4;
3027 htab
->sgotplt
->size
+= 8;
3029 /* We also need to make an entry in the .rel.plt section. */
3030 htab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
3032 if (htab
->vxworks_p
&& !bfd_link_pic (info
))
3034 /* VxWorks executables have a second set of relocations
3035 for each PLT entry. They go in a separate relocation
3036 section, which is processed by the kernel loader. */
3038 /* There is a relocation for the initial PLT entry:
3039 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
3040 if (h
->plt
.offset
== htab
->plt_info
->plt0_entry_size
)
3041 htab
->srelplt2
->size
+= sizeof (Elf32_External_Rela
);
3043 /* There are two extra relocations for each subsequent
3044 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
3045 and an R_SH_DIR32 relocation for the PLT entry. */
3046 htab
->srelplt2
->size
+= sizeof (Elf32_External_Rela
) * 2;
3051 h
->plt
.offset
= (bfd_vma
) -1;
3057 h
->plt
.offset
= (bfd_vma
) -1;
3061 if (h
->got
.refcount
> 0)
3065 enum got_type got_type
= sh_elf_hash_entry (h
)->got_type
;
3067 /* Make sure this symbol is output as a dynamic symbol.
3068 Undefined weak syms won't yet be marked as dynamic. */
3069 if (h
->dynindx
== -1
3070 && !h
->forced_local
)
3072 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3077 h
->got
.offset
= s
->size
;
3079 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
3080 if (got_type
== GOT_TLS_GD
)
3082 dyn
= htab
->root
.dynamic_sections_created
;
3085 /* No dynamic relocations required. */
3086 if (htab
->fdpic_p
&& !bfd_link_pic (info
)
3087 && h
->root
.type
!= bfd_link_hash_undefweak
3088 && (got_type
== GOT_NORMAL
|| got_type
== GOT_FUNCDESC
))
3089 htab
->srofixup
->size
+= 4;
3091 /* No dynamic relocations required when IE->LE conversion happens. */
3092 else if (got_type
== GOT_TLS_IE
3094 && !bfd_link_pic (info
))
3096 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
3097 R_SH_TLS_GD needs one if local symbol and two if global. */
3098 else if ((got_type
== GOT_TLS_GD
&& h
->dynindx
== -1)
3099 || got_type
== GOT_TLS_IE
)
3100 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
3101 else if (got_type
== GOT_TLS_GD
)
3102 htab
->srelgot
->size
+= 2 * sizeof (Elf32_External_Rela
);
3103 else if (got_type
== GOT_FUNCDESC
)
3105 if (!bfd_link_pic (info
) && SYMBOL_FUNCDESC_LOCAL (info
, h
))
3106 htab
->srofixup
->size
+= 4;
3108 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
3110 else if ((ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
3111 || h
->root
.type
!= bfd_link_hash_undefweak
)
3112 && (bfd_link_pic (info
)
3113 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, 0, h
)))
3114 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
3115 else if (htab
->fdpic_p
3116 && !bfd_link_pic (info
)
3117 && got_type
== GOT_NORMAL
3118 && (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
3119 || h
->root
.type
!= bfd_link_hash_undefweak
))
3120 htab
->srofixup
->size
+= 4;
3123 h
->got
.offset
= (bfd_vma
) -1;
3125 #ifdef INCLUDE_SHMEDIA
3126 if (eh
->datalabel_got
.refcount
> 0)
3131 /* Make sure this symbol is output as a dynamic symbol.
3132 Undefined weak syms won't yet be marked as dynamic. */
3133 if (h
->dynindx
== -1
3134 && !h
->forced_local
)
3136 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3141 eh
->datalabel_got
.offset
= s
->size
;
3143 dyn
= htab
->root
.dynamic_sections_created
;
3144 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
))
3145 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
3148 eh
->datalabel_got
.offset
= (bfd_vma
) -1;
3151 /* Allocate space for any dynamic relocations to function
3152 descriptors, canonical or otherwise. We need to relocate the
3153 reference unless it resolves to zero, which only happens for
3154 undefined weak symbols (either non-default visibility, or when
3155 static linking). Any GOT slot is accounted for elsewhere. */
3156 if (eh
->abs_funcdesc_refcount
> 0
3157 && (h
->root
.type
!= bfd_link_hash_undefweak
3158 || (htab
->root
.dynamic_sections_created
3159 && ! SYMBOL_CALLS_LOCAL (info
, h
))))
3161 if (!bfd_link_pic (info
) && SYMBOL_FUNCDESC_LOCAL (info
, h
))
3162 htab
->srofixup
->size
+= eh
->abs_funcdesc_refcount
* 4;
3165 += eh
->abs_funcdesc_refcount
* sizeof (Elf32_External_Rela
);
3168 /* We must allocate a function descriptor if there are references to
3169 a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and
3170 the dynamic linker isn't going to allocate it. None of this
3171 applies if we already created one in .got.plt, but if the
3172 canonical function descriptor can be in this object, there
3173 won't be a PLT entry at all. */
3174 if ((eh
->funcdesc
.refcount
> 0
3175 || (h
->got
.offset
!= MINUS_ONE
&& eh
->got_type
== GOT_FUNCDESC
))
3176 && h
->root
.type
!= bfd_link_hash_undefweak
3177 && SYMBOL_FUNCDESC_LOCAL (info
, h
))
3179 /* Make room for this function descriptor. */
3180 eh
->funcdesc
.offset
= htab
->sfuncdesc
->size
;
3181 htab
->sfuncdesc
->size
+= 8;
3183 /* We will need a relocation or two fixups to initialize the
3184 function descriptor, so allocate those too. */
3185 if (!bfd_link_pic (info
) && SYMBOL_CALLS_LOCAL (info
, h
))
3186 htab
->srofixup
->size
+= 8;
3188 htab
->srelfuncdesc
->size
+= sizeof (Elf32_External_Rela
);
3191 if (eh
->dyn_relocs
== NULL
)
3194 /* In the shared -Bsymbolic case, discard space allocated for
3195 dynamic pc-relative relocs against symbols which turn out to be
3196 defined in regular objects. For the normal shared case, discard
3197 space for pc-relative relocs that have become local due to symbol
3198 visibility changes. */
3200 if (bfd_link_pic (info
))
3202 if (SYMBOL_CALLS_LOCAL (info
, h
))
3204 struct elf_sh_dyn_relocs
**pp
;
3206 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
3208 p
->count
-= p
->pc_count
;
3217 if (htab
->vxworks_p
)
3219 struct elf_sh_dyn_relocs
**pp
;
3221 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
3223 if (strcmp (p
->sec
->output_section
->name
, ".tls_vars") == 0)
3230 /* Also discard relocs on undefined weak syms with non-default
3232 if (eh
->dyn_relocs
!= NULL
3233 && h
->root
.type
== bfd_link_hash_undefweak
)
3235 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
3236 eh
->dyn_relocs
= NULL
;
3238 /* Make sure undefined weak symbols are output as a dynamic
3240 else if (h
->dynindx
== -1
3241 && !h
->forced_local
)
3243 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3250 /* For the non-shared case, discard space for relocs against
3251 symbols which turn out to need copy relocs or are not
3257 || (htab
->root
.dynamic_sections_created
3258 && (h
->root
.type
== bfd_link_hash_undefweak
3259 || h
->root
.type
== bfd_link_hash_undefined
))))
3261 /* Make sure this symbol is output as a dynamic symbol.
3262 Undefined weak syms won't yet be marked as dynamic. */
3263 if (h
->dynindx
== -1
3264 && !h
->forced_local
)
3266 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3270 /* If that succeeded, we know we'll be keeping all the
3272 if (h
->dynindx
!= -1)
3276 eh
->dyn_relocs
= NULL
;
3281 /* Finally, allocate space. */
3282 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3284 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
3285 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
3287 /* If we need relocations, we do not need fixups. */
3288 if (htab
->fdpic_p
&& !bfd_link_pic (info
))
3289 htab
->srofixup
->size
-= 4 * (p
->count
- p
->pc_count
);
3295 /* Find any dynamic relocs that apply to read-only sections. */
3298 readonly_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
3300 struct elf_sh_link_hash_entry
*eh
;
3301 struct elf_sh_dyn_relocs
*p
;
3303 eh
= (struct elf_sh_link_hash_entry
*) h
;
3304 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3306 asection
*s
= p
->sec
->output_section
;
3308 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
3310 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
3312 info
->flags
|= DF_TEXTREL
;
3314 /* Not an error, just cut short the traversal. */
3321 /* This function is called after all the input files have been read,
3322 and the input sections have been assigned to output sections.
3323 It's a convenient place to determine the PLT style. */
3326 sh_elf_always_size_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
3328 sh_elf_hash_table (info
)->plt_info
= get_plt_info (output_bfd
,
3329 bfd_link_pic (info
));
3331 if (sh_elf_hash_table (info
)->fdpic_p
&& !bfd_link_relocatable (info
)
3332 && !bfd_elf_stack_segment_size (output_bfd
, info
,
3333 "__stacksize", DEFAULT_STACK_SIZE
))
3338 /* Set the sizes of the dynamic sections. */
3341 sh_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
3342 struct bfd_link_info
*info
)
3344 struct elf_sh_link_hash_table
*htab
;
3350 htab
= sh_elf_hash_table (info
);
3354 dynobj
= htab
->root
.dynobj
;
3355 BFD_ASSERT (dynobj
!= NULL
);
3357 if (htab
->root
.dynamic_sections_created
)
3359 /* Set the contents of the .interp section to the interpreter. */
3360 if (bfd_link_executable (info
) && !info
->nointerp
)
3362 s
= bfd_get_linker_section (dynobj
, ".interp");
3363 BFD_ASSERT (s
!= NULL
);
3364 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3365 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3369 /* Set up .got offsets for local syms, and space for local dynamic
3371 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
3373 bfd_signed_vma
*local_got
;
3374 bfd_signed_vma
*end_local_got
;
3375 union gotref
*local_funcdesc
, *end_local_funcdesc
;
3376 char *local_got_type
;
3377 bfd_size_type locsymcount
;
3378 Elf_Internal_Shdr
*symtab_hdr
;
3381 if (! is_sh_elf (ibfd
))
3384 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
3386 struct elf_sh_dyn_relocs
*p
;
3388 for (p
= ((struct elf_sh_dyn_relocs
*)
3389 elf_section_data (s
)->local_dynrel
);
3393 if (! bfd_is_abs_section (p
->sec
)
3394 && bfd_is_abs_section (p
->sec
->output_section
))
3396 /* Input section has been discarded, either because
3397 it is a copy of a linkonce section or due to
3398 linker script /DISCARD/, so we'll be discarding
3401 else if (htab
->vxworks_p
3402 && strcmp (p
->sec
->output_section
->name
,
3405 /* Relocations in vxworks .tls_vars sections are
3406 handled specially by the loader. */
3408 else if (p
->count
!= 0)
3410 srel
= elf_section_data (p
->sec
)->sreloc
;
3411 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
3412 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
3413 info
->flags
|= DF_TEXTREL
;
3415 /* If we need relocations, we do not need fixups. */
3416 if (htab
->fdpic_p
&& !bfd_link_pic (info
))
3417 htab
->srofixup
->size
-= 4 * (p
->count
- p
->pc_count
);
3422 symtab_hdr
= &elf_symtab_hdr (ibfd
);
3423 locsymcount
= symtab_hdr
->sh_info
;
3424 #ifdef INCLUDE_SHMEDIA
3425 /* Count datalabel local GOT. */
3429 srel
= htab
->srelgot
;
3431 local_got
= elf_local_got_refcounts (ibfd
);
3434 end_local_got
= local_got
+ locsymcount
;
3435 local_got_type
= sh_elf_local_got_type (ibfd
);
3436 local_funcdesc
= sh_elf_local_funcdesc (ibfd
);
3437 for (; local_got
< end_local_got
; ++local_got
)
3441 *local_got
= s
->size
;
3443 if (*local_got_type
== GOT_TLS_GD
)
3445 if (bfd_link_pic (info
))
3446 srel
->size
+= sizeof (Elf32_External_Rela
);
3448 htab
->srofixup
->size
+= 4;
3450 if (*local_got_type
== GOT_FUNCDESC
)
3452 if (local_funcdesc
== NULL
)
3456 size
= locsymcount
* sizeof (union gotref
);
3457 local_funcdesc
= (union gotref
*) bfd_zalloc (ibfd
,
3459 if (local_funcdesc
== NULL
)
3461 sh_elf_local_funcdesc (ibfd
) = local_funcdesc
;
3462 local_funcdesc
+= (local_got
3463 - elf_local_got_refcounts (ibfd
));
3465 local_funcdesc
->refcount
++;
3470 *local_got
= (bfd_vma
) -1;
3475 local_funcdesc
= sh_elf_local_funcdesc (ibfd
);
3478 end_local_funcdesc
= local_funcdesc
+ locsymcount
;
3480 for (; local_funcdesc
< end_local_funcdesc
; ++local_funcdesc
)
3482 if (local_funcdesc
->refcount
> 0)
3484 local_funcdesc
->offset
= htab
->sfuncdesc
->size
;
3485 htab
->sfuncdesc
->size
+= 8;
3486 if (!bfd_link_pic (info
))
3487 htab
->srofixup
->size
+= 8;
3489 htab
->srelfuncdesc
->size
+= sizeof (Elf32_External_Rela
);
3492 local_funcdesc
->offset
= MINUS_ONE
;
3498 if (htab
->tls_ldm_got
.refcount
> 0)
3500 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3502 htab
->tls_ldm_got
.offset
= htab
->sgot
->size
;
3503 htab
->sgot
->size
+= 8;
3504 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
3507 htab
->tls_ldm_got
.offset
= -1;
3509 /* Only the reserved entries should be present. For FDPIC, they go at
3510 the end of .got.plt. */
3513 BFD_ASSERT (htab
->sgotplt
&& htab
->sgotplt
->size
== 12);
3514 htab
->sgotplt
->size
= 0;
3517 /* Allocate global sym .plt and .got entries, and space for global
3518 sym dynamic relocs. */
3519 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, info
);
3521 /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the
3522 end of the FDPIC .got.plt. */
3525 htab
->root
.hgot
->root
.u
.def
.value
= htab
->sgotplt
->size
;
3526 htab
->sgotplt
->size
+= 12;
3529 /* At the very end of the .rofixup section is a pointer to the GOT. */
3530 if (htab
->fdpic_p
&& htab
->srofixup
!= NULL
)
3531 htab
->srofixup
->size
+= 4;
3533 /* We now have determined the sizes of the various dynamic sections.
3534 Allocate memory for them. */
3536 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3538 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3543 || s
== htab
->sgotplt
3544 || s
== htab
->sfuncdesc
3545 || s
== htab
->srofixup
3546 || s
== htab
->sdynbss
)
3548 /* Strip this section if we don't need it; see the
3551 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, s
), ".rela"))
3553 if (s
->size
!= 0 && s
!= htab
->srelplt
&& s
!= htab
->srelplt2
)
3556 /* We use the reloc_count field as a counter if we need
3557 to copy relocs into the output file. */
3562 /* It's not one of our sections, so don't allocate space. */
3568 /* If we don't need this section, strip it from the
3569 output file. This is mostly to handle .rela.bss and
3570 .rela.plt. We must create both sections in
3571 create_dynamic_sections, because they must be created
3572 before the linker maps input sections to output
3573 sections. The linker does that before
3574 adjust_dynamic_symbol is called, and it is that
3575 function which decides whether anything needs to go
3576 into these sections. */
3578 s
->flags
|= SEC_EXCLUDE
;
3582 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
3585 /* Allocate memory for the section contents. We use bfd_zalloc
3586 here in case unused entries are not reclaimed before the
3587 section's contents are written out. This should not happen,
3588 but this way if it does, we get a R_SH_NONE reloc instead
3590 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
3591 if (s
->contents
== NULL
)
3595 if (htab
->root
.dynamic_sections_created
)
3597 /* Add some entries to the .dynamic section. We fill in the
3598 values later, in sh_elf_finish_dynamic_sections, but we
3599 must add the entries now so that we get the correct size for
3600 the .dynamic section. The DT_DEBUG entry is filled in by the
3601 dynamic linker and used by the debugger. */
3602 #define add_dynamic_entry(TAG, VAL) \
3603 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3605 if (bfd_link_executable (info
))
3607 if (! add_dynamic_entry (DT_DEBUG
, 0))
3611 if (htab
->splt
->size
!= 0)
3613 if (! add_dynamic_entry (DT_PLTGOT
, 0)
3614 || ! add_dynamic_entry (DT_PLTRELSZ
, 0)
3615 || ! add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3616 || ! add_dynamic_entry (DT_JMPREL
, 0))
3619 else if ((elf_elfheader (output_bfd
)->e_flags
& EF_SH_FDPIC
))
3621 if (! add_dynamic_entry (DT_PLTGOT
, 0))
3627 if (! add_dynamic_entry (DT_RELA
, 0)
3628 || ! add_dynamic_entry (DT_RELASZ
, 0)
3629 || ! add_dynamic_entry (DT_RELAENT
,
3630 sizeof (Elf32_External_Rela
)))
3633 /* If any dynamic relocs apply to a read-only section,
3634 then we need a DT_TEXTREL entry. */
3635 if ((info
->flags
& DF_TEXTREL
) == 0)
3636 elf_link_hash_traverse (&htab
->root
, readonly_dynrelocs
, info
);
3638 if ((info
->flags
& DF_TEXTREL
) != 0)
3640 if (! add_dynamic_entry (DT_TEXTREL
, 0))
3645 && !elf_vxworks_add_dynamic_entries (output_bfd
, info
))
3648 #undef add_dynamic_entry
3653 /* Add a dynamic relocation to the SRELOC section. */
3655 inline static bfd_vma
3656 sh_elf_add_dyn_reloc (bfd
*output_bfd
, asection
*sreloc
, bfd_vma offset
,
3657 int reloc_type
, long dynindx
, bfd_vma addend
)
3659 Elf_Internal_Rela outrel
;
3660 bfd_vma reloc_offset
;
3662 outrel
.r_offset
= offset
;
3663 outrel
.r_info
= ELF32_R_INFO (dynindx
, reloc_type
);
3664 outrel
.r_addend
= addend
;
3666 reloc_offset
= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
3667 BFD_ASSERT (reloc_offset
< sreloc
->size
);
3668 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
,
3669 sreloc
->contents
+ reloc_offset
);
3670 sreloc
->reloc_count
++;
3672 return reloc_offset
;
3675 /* Add an FDPIC read-only fixup. */
3678 sh_elf_add_rofixup (bfd
*output_bfd
, asection
*srofixup
, bfd_vma offset
)
3680 bfd_vma fixup_offset
;
3682 fixup_offset
= srofixup
->reloc_count
++ * 4;
3683 BFD_ASSERT (fixup_offset
< srofixup
->size
);
3684 bfd_put_32 (output_bfd
, offset
, srofixup
->contents
+ fixup_offset
);
3687 /* Return the offset of the generated .got section from the
3688 _GLOBAL_OFFSET_TABLE_ symbol. */
3690 static bfd_signed_vma
3691 sh_elf_got_offset (struct elf_sh_link_hash_table
*htab
)
3693 return (htab
->sgot
->output_offset
- htab
->sgotplt
->output_offset
3694 - htab
->root
.hgot
->root
.u
.def
.value
);
3697 /* Find the segment number in which OSEC, and output section, is
3701 sh_elf_osec_to_segment (bfd
*output_bfd
, asection
*osec
)
3703 Elf_Internal_Phdr
*p
= NULL
;
3705 if (output_bfd
->xvec
->flavour
== bfd_target_elf_flavour
3706 /* PR ld/17110: Do not look for output segments in an input bfd. */
3707 && output_bfd
->direction
!= read_direction
)
3708 p
= _bfd_elf_find_segment_containing_section (output_bfd
, osec
);
3710 /* FIXME: Nothing ever says what this index is relative to. The kernel
3711 supplies data in terms of the number of load segments but this is
3712 a phdr index and the first phdr may not be a load segment. */
3713 return (p
!= NULL
) ? p
- elf_tdata (output_bfd
)->phdr
: -1;
3717 sh_elf_osec_readonly_p (bfd
*output_bfd
, asection
*osec
)
3719 unsigned seg
= sh_elf_osec_to_segment (output_bfd
, osec
);
3721 return (seg
!= (unsigned) -1
3722 && ! (elf_tdata (output_bfd
)->phdr
[seg
].p_flags
& PF_W
));
3725 /* Generate the initial contents of a local function descriptor, along
3726 with any relocations or fixups required. */
3728 sh_elf_initialize_funcdesc (bfd
*output_bfd
,
3729 struct bfd_link_info
*info
,
3730 struct elf_link_hash_entry
*h
,
3735 struct elf_sh_link_hash_table
*htab
;
3739 htab
= sh_elf_hash_table (info
);
3741 /* FIXME: The ABI says that the offset to the function goes in the
3742 descriptor, along with the segment index. We're RELA, so it could
3743 go in the reloc instead... */
3745 if (h
!= NULL
&& SYMBOL_CALLS_LOCAL (info
, h
))
3747 section
= h
->root
.u
.def
.section
;
3748 value
= h
->root
.u
.def
.value
;
3751 if (h
== NULL
|| SYMBOL_CALLS_LOCAL (info
, h
))
3753 dynindx
= elf_section_data (section
->output_section
)->dynindx
;
3754 addr
= value
+ section
->output_offset
;
3755 seg
= sh_elf_osec_to_segment (output_bfd
, section
->output_section
);
3759 BFD_ASSERT (h
->dynindx
!= -1);
3760 dynindx
= h
->dynindx
;
3764 if (!bfd_link_pic (info
) && SYMBOL_CALLS_LOCAL (info
, h
))
3766 if (h
== NULL
|| h
->root
.type
!= bfd_link_hash_undefweak
)
3768 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
3770 + htab
->sfuncdesc
->output_section
->vma
3771 + htab
->sfuncdesc
->output_offset
);
3772 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
3774 + htab
->sfuncdesc
->output_section
->vma
3775 + htab
->sfuncdesc
->output_offset
);
3778 /* There are no dynamic relocations so fill in the final
3779 address and gp value (barring fixups). */
3780 addr
+= section
->output_section
->vma
;
3781 seg
= htab
->root
.hgot
->root
.u
.def
.value
3782 + htab
->root
.hgot
->root
.u
.def
.section
->output_section
->vma
3783 + htab
->root
.hgot
->root
.u
.def
.section
->output_offset
;
3786 sh_elf_add_dyn_reloc (output_bfd
, htab
->srelfuncdesc
,
3788 + htab
->sfuncdesc
->output_section
->vma
3789 + htab
->sfuncdesc
->output_offset
,
3790 R_SH_FUNCDESC_VALUE
, dynindx
, 0);
3792 bfd_put_32 (output_bfd
, addr
, htab
->sfuncdesc
->contents
+ offset
);
3793 bfd_put_32 (output_bfd
, seg
, htab
->sfuncdesc
->contents
+ offset
+ 4);
3798 /* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD.
3799 VALUE is the field's value. Return bfd_reloc_ok if successful or an error
3802 static bfd_reloc_status_type
3803 install_movi20_field (bfd
*output_bfd
, unsigned long relocation
,
3804 bfd
*input_bfd
, asection
*input_section
,
3805 bfd_byte
*contents
, bfd_vma offset
)
3807 unsigned long cur_val
;
3809 bfd_reloc_status_type r
;
3811 if (offset
> bfd_get_section_limit (input_bfd
, input_section
))
3812 return bfd_reloc_outofrange
;
3814 r
= bfd_check_overflow (complain_overflow_signed
, 20, 0,
3815 bfd_arch_bits_per_address (input_bfd
), relocation
);
3816 if (r
!= bfd_reloc_ok
)
3819 addr
= contents
+ offset
;
3820 cur_val
= bfd_get_16 (output_bfd
, addr
);
3821 bfd_put_16 (output_bfd
, cur_val
| ((relocation
& 0xf0000) >> 12), addr
);
3822 bfd_put_16 (output_bfd
, relocation
& 0xffff, addr
+ 2);
3824 return bfd_reloc_ok
;
3827 /* Relocate an SH ELF section. */
3830 sh_elf_relocate_section (bfd
*output_bfd
, struct bfd_link_info
*info
,
3831 bfd
*input_bfd
, asection
*input_section
,
3832 bfd_byte
*contents
, Elf_Internal_Rela
*relocs
,
3833 Elf_Internal_Sym
*local_syms
,
3834 asection
**local_sections
)
3836 struct elf_sh_link_hash_table
*htab
;
3837 Elf_Internal_Shdr
*symtab_hdr
;
3838 struct elf_link_hash_entry
**sym_hashes
;
3839 Elf_Internal_Rela
*rel
, *relend
;
3841 bfd_vma
*local_got_offsets
;
3842 asection
*sgot
= NULL
;
3843 asection
*sgotplt
= NULL
;
3844 asection
*splt
= NULL
;
3845 asection
*sreloc
= NULL
;
3846 asection
*srelgot
= NULL
;
3847 bfd_boolean is_vxworks_tls
;
3848 unsigned isec_segment
, got_segment
, plt_segment
, check_segment
[2];
3849 bfd_boolean fdpic_p
= FALSE
;
3851 BFD_ASSERT (is_sh_elf (input_bfd
));
3853 htab
= sh_elf_hash_table (info
);
3856 dynobj
= htab
->root
.dynobj
;
3858 sgotplt
= htab
->sgotplt
;
3860 fdpic_p
= htab
->fdpic_p
;
3862 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
3863 sym_hashes
= elf_sym_hashes (input_bfd
);
3864 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3866 isec_segment
= sh_elf_osec_to_segment (output_bfd
,
3867 input_section
->output_section
);
3868 if (fdpic_p
&& sgot
)
3869 got_segment
= sh_elf_osec_to_segment (output_bfd
,
3870 sgot
->output_section
);
3873 if (fdpic_p
&& splt
)
3874 plt_segment
= sh_elf_osec_to_segment (output_bfd
,
3875 splt
->output_section
);
3879 /* We have to handle relocations in vxworks .tls_vars sections
3880 specially, because the dynamic loader is 'weird'. */
3881 is_vxworks_tls
= (htab
&& htab
->vxworks_p
&& bfd_link_pic (info
)
3882 && !strcmp (input_section
->output_section
->name
,
3886 relend
= relocs
+ input_section
->reloc_count
;
3887 for (; rel
< relend
; rel
++)
3890 reloc_howto_type
*howto
;
3891 unsigned long r_symndx
;
3892 Elf_Internal_Sym
*sym
;
3894 struct elf_link_hash_entry
*h
;
3896 bfd_vma addend
= (bfd_vma
) 0;
3897 bfd_reloc_status_type r
;
3898 int seen_stt_datalabel
= 0;
3900 enum got_type got_type
;
3901 const char *symname
= NULL
;
3903 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3905 r_type
= ELF32_R_TYPE (rel
->r_info
);
3907 /* Many of the relocs are only used for relaxing, and are
3908 handled entirely by the relaxation code. */
3909 if (r_type
>= (int) R_SH_GNU_VTINHERIT
3910 && r_type
<= (int) R_SH_LABEL
)
3912 if (r_type
== (int) R_SH_NONE
)
3916 || r_type
>= R_SH_max
3917 || (r_type
>= (int) R_SH_FIRST_INVALID_RELOC
3918 && r_type
<= (int) R_SH_LAST_INVALID_RELOC
)
3919 || (r_type
>= (int) R_SH_FIRST_INVALID_RELOC_2
3920 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_2
)
3921 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_3
3922 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_3
)
3923 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_4
3924 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_4
)
3925 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_5
3926 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_5
)
3927 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_6
3928 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_6
))
3930 bfd_set_error (bfd_error_bad_value
);
3934 howto
= get_howto_table (output_bfd
) + r_type
;
3936 /* For relocs that aren't partial_inplace, we get the addend from
3938 if (! howto
->partial_inplace
)
3939 addend
= rel
->r_addend
;
3944 check_segment
[0] = -1;
3945 check_segment
[1] = -1;
3946 if (r_symndx
< symtab_hdr
->sh_info
)
3948 sym
= local_syms
+ r_symndx
;
3949 sec
= local_sections
[r_symndx
];
3951 symname
= bfd_elf_string_from_elf_section
3952 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
3953 if (symname
== NULL
|| *symname
== '\0')
3954 symname
= bfd_section_name (input_bfd
, sec
);
3956 relocation
= (sec
->output_section
->vma
3957 + sec
->output_offset
3959 /* A local symbol never has STO_SH5_ISA32, so we don't need
3960 datalabel processing here. Make sure this does not change
3962 if ((sym
->st_other
& STO_SH5_ISA32
) != 0)
3963 (*info
->callbacks
->reloc_dangerous
)
3965 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
3966 input_bfd
, input_section
, rel
->r_offset
);
3968 if (sec
!= NULL
&& discarded_section (sec
))
3969 /* Handled below. */
3971 else if (bfd_link_relocatable (info
))
3973 /* This is a relocatable link. We don't have to change
3974 anything, unless the reloc is against a section symbol,
3975 in which case we have to adjust according to where the
3976 section symbol winds up in the output section. */
3977 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
3979 if (! howto
->partial_inplace
)
3981 /* For relocations with the addend in the
3982 relocation, we need just to update the addend.
3983 All real relocs are of type partial_inplace; this
3984 code is mostly for completeness. */
3985 rel
->r_addend
+= sec
->output_offset
;
3990 /* Relocs of type partial_inplace need to pick up the
3991 contents in the contents and add the offset resulting
3992 from the changed location of the section symbol.
3993 Using _bfd_final_link_relocate (e.g. goto
3994 final_link_relocate) here would be wrong, because
3995 relocations marked pc_relative would get the current
3996 location subtracted, and we must only do that at the
3998 r
= _bfd_relocate_contents (howto
, input_bfd
,
4001 contents
+ rel
->r_offset
);
4002 goto relocation_done
;
4007 else if (! howto
->partial_inplace
)
4009 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
4010 addend
= rel
->r_addend
;
4012 else if ((sec
->flags
& SEC_MERGE
)
4013 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
4017 if (howto
->rightshift
|| howto
->src_mask
!= 0xffffffff)
4020 /* xgettext:c-format */
4021 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
4022 input_bfd
, input_section
,
4023 (long) rel
->r_offset
, howto
->name
);
4027 addend
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
4030 _bfd_elf_rel_local_sym (output_bfd
, sym
, &msec
, addend
)
4032 addend
+= msec
->output_section
->vma
+ msec
->output_offset
;
4033 bfd_put_32 (input_bfd
, addend
, contents
+ rel
->r_offset
);
4039 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
4042 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4043 symname
= h
->root
.root
.string
;
4044 while (h
->root
.type
== bfd_link_hash_indirect
4045 || h
->root
.type
== bfd_link_hash_warning
)
4047 #ifdef INCLUDE_SHMEDIA
4048 /* If the reference passes a symbol marked with
4049 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
4051 seen_stt_datalabel
|= h
->type
== STT_DATALABEL
;
4053 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4055 if (h
->root
.type
== bfd_link_hash_defined
4056 || h
->root
.type
== bfd_link_hash_defweak
)
4060 dyn
= htab
? htab
->root
.dynamic_sections_created
: FALSE
;
4061 sec
= h
->root
.u
.def
.section
;
4062 /* In these cases, we don't need the relocation value.
4063 We check specially because in some obscure cases
4064 sec->output_section will be NULL. */
4065 if (r_type
== R_SH_GOTPC
4066 || r_type
== R_SH_GOTPC_LOW16
4067 || r_type
== R_SH_GOTPC_MEDLOW16
4068 || r_type
== R_SH_GOTPC_MEDHI16
4069 || r_type
== R_SH_GOTPC_HI16
4070 || ((r_type
== R_SH_PLT32
4071 || r_type
== R_SH_PLT_LOW16
4072 || r_type
== R_SH_PLT_MEDLOW16
4073 || r_type
== R_SH_PLT_MEDHI16
4074 || r_type
== R_SH_PLT_HI16
)
4075 && h
->plt
.offset
!= (bfd_vma
) -1)
4076 || ((r_type
== R_SH_GOT32
4077 || r_type
== R_SH_GOT20
4078 || r_type
== R_SH_GOTFUNCDESC
4079 || r_type
== R_SH_GOTFUNCDESC20
4080 || r_type
== R_SH_GOTOFFFUNCDESC
4081 || r_type
== R_SH_GOTOFFFUNCDESC20
4082 || r_type
== R_SH_FUNCDESC
4083 || r_type
== R_SH_GOT_LOW16
4084 || r_type
== R_SH_GOT_MEDLOW16
4085 || r_type
== R_SH_GOT_MEDHI16
4086 || r_type
== R_SH_GOT_HI16
)
4087 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
4088 bfd_link_pic (info
),
4090 && (! bfd_link_pic (info
)
4091 || (! info
->symbolic
&& h
->dynindx
!= -1)
4092 || !h
->def_regular
))
4093 /* The cases above are those in which relocation is
4094 overwritten in the switch block below. The cases
4095 below are those in which we must defer relocation
4096 to run-time, because we can't resolve absolute
4097 addresses when creating a shared library. */
4098 || (bfd_link_pic (info
)
4099 && ((! info
->symbolic
&& h
->dynindx
!= -1)
4101 && ((r_type
== R_SH_DIR32
4102 && !h
->forced_local
)
4103 || (r_type
== R_SH_REL32
4104 && !SYMBOL_CALLS_LOCAL (info
, h
)))
4105 && ((input_section
->flags
& SEC_ALLOC
) != 0
4106 /* DWARF will emit R_SH_DIR32 relocations in its
4107 sections against symbols defined externally
4108 in shared libraries. We can't do anything
4110 || ((input_section
->flags
& SEC_DEBUGGING
) != 0
4111 && h
->def_dynamic
)))
4112 /* Dynamic relocs are not propagated for SEC_DEBUGGING
4113 sections because such sections are not SEC_ALLOC and
4114 thus ld.so will not process them. */
4115 || (sec
->output_section
== NULL
4116 && ((input_section
->flags
& SEC_DEBUGGING
) != 0
4118 || (sec
->output_section
== NULL
4119 && (sh_elf_hash_entry (h
)->got_type
== GOT_TLS_IE
4120 || sh_elf_hash_entry (h
)->got_type
== GOT_TLS_GD
)))
4122 else if (sec
->output_section
!= NULL
)
4123 relocation
= ((h
->root
.u
.def
.value
4124 + sec
->output_section
->vma
4125 + sec
->output_offset
)
4126 /* A STO_SH5_ISA32 causes a "bitor 1" to the
4127 symbol value, unless we've seen
4128 STT_DATALABEL on the way to it. */
4129 | ((h
->other
& STO_SH5_ISA32
) != 0
4130 && ! seen_stt_datalabel
));
4131 else if (!bfd_link_relocatable (info
)
4132 && (_bfd_elf_section_offset (output_bfd
, info
,
4138 /* xgettext:c-format */
4139 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
4142 (long) rel
->r_offset
,
4144 h
->root
.root
.string
);
4148 else if (h
->root
.type
== bfd_link_hash_undefweak
)
4150 else if (info
->unresolved_syms_in_objects
== RM_IGNORE
4151 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
4153 else if (!bfd_link_relocatable (info
))
4154 (*info
->callbacks
->undefined_symbol
)
4155 (info
, h
->root
.root
.string
, input_bfd
,
4156 input_section
, rel
->r_offset
,
4157 (info
->unresolved_syms_in_objects
== RM_GENERATE_ERROR
4158 || ELF_ST_VISIBILITY (h
->other
)));
4161 if (sec
!= NULL
&& discarded_section (sec
))
4162 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
4163 rel
, 1, relend
, howto
, 0, contents
);
4165 if (bfd_link_relocatable (info
))
4168 /* Check for inter-segment relocations in FDPIC files. Most
4169 relocations connect the relocation site to the location of
4170 the target symbol, but there are some exceptions below. */
4171 check_segment
[0] = isec_segment
;
4173 check_segment
[1] = sh_elf_osec_to_segment (output_bfd
,
4174 sec
->output_section
);
4176 check_segment
[1] = -1;
4178 switch ((int) r_type
)
4180 final_link_relocate
:
4181 /* COFF relocs don't use the addend. The addend is used for
4182 R_SH_DIR32 to be compatible with other compilers. */
4183 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
4184 contents
, rel
->r_offset
,
4185 relocation
, addend
);
4189 goto final_link_relocate
;
4194 /* If the reloc is against the start of this section, then
4195 the assembler has already taken care of it and the reloc
4196 is here only to assist in relaxing. If the reloc is not
4197 against the start of this section, then it's against an
4198 external symbol and we must deal with it ourselves. */
4199 if (input_section
->output_section
->vma
+ input_section
->output_offset
4202 int disp
= (relocation
4203 - input_section
->output_section
->vma
4204 - input_section
->output_offset
4210 case R_SH_DIR8WPZ
: mask
= 1; break;
4211 case R_SH_DIR8WPL
: mask
= 3; break;
4212 default: mask
= 0; break;
4217 /* xgettext:c-format */
4218 (_("%B: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
4219 input_section
->owner
,
4220 (unsigned long) rel
->r_offset
);
4221 bfd_set_error (bfd_error_bad_value
);
4225 goto final_link_relocate
;
4231 #ifdef INCLUDE_SHMEDIA
4232 if (shmedia_prepare_reloc (info
, input_bfd
, input_section
,
4233 contents
, rel
, &relocation
))
4234 goto final_link_relocate
;
4236 bfd_set_error (bfd_error_bad_value
);
4244 goto final_link_relocate
;
4251 /* xgettext:c-format */
4252 (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
4253 input_section
->owner
,
4254 (unsigned long) rel
->r_offset
, howto
->name
,
4255 (unsigned long) relocation
);
4256 bfd_set_error (bfd_error_bad_value
);
4259 goto final_link_relocate
;
4267 /* xgettext:c-format */
4268 (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
4269 input_section
->owner
,
4270 (unsigned long) rel
->r_offset
, howto
->name
,
4271 (unsigned long) relocation
);
4272 bfd_set_error (bfd_error_bad_value
);
4275 goto final_link_relocate
;
4278 if ((signed int)relocation
< -32
4279 || (signed int)relocation
> 32)
4282 /* xgettext:c-format */
4283 (_("%B: 0x%lx: fatal: R_SH_PSHA relocation %d not in range -32..32"),
4284 input_section
->owner
,
4285 (unsigned long) rel
->r_offset
,
4286 (unsigned long) relocation
);
4287 bfd_set_error (bfd_error_bad_value
);
4290 goto final_link_relocate
;
4293 if ((signed int)relocation
< -16
4294 || (signed int)relocation
> 16)
4297 /* xgettext:c-format */
4298 (_("%B: 0x%lx: fatal: R_SH_PSHL relocation %d not in range -32..32"),
4299 input_section
->owner
,
4300 (unsigned long) rel
->r_offset
,
4301 (unsigned long) relocation
);
4302 bfd_set_error (bfd_error_bad_value
);
4305 goto final_link_relocate
;
4309 #ifdef INCLUDE_SHMEDIA
4310 case R_SH_IMM_LOW16_PCREL
:
4311 case R_SH_IMM_MEDLOW16_PCREL
:
4312 case R_SH_IMM_MEDHI16_PCREL
:
4313 case R_SH_IMM_HI16_PCREL
:
4315 if (bfd_link_pic (info
)
4317 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
4318 || h
->root
.type
!= bfd_link_hash_undefweak
)
4319 && r_symndx
!= STN_UNDEF
4320 && (input_section
->flags
& SEC_ALLOC
) != 0
4322 && (r_type
== R_SH_DIR32
4323 || !SYMBOL_CALLS_LOCAL (info
, h
)))
4325 Elf_Internal_Rela outrel
;
4327 bfd_boolean skip
, relocate
;
4329 /* When generating a shared object, these relocations
4330 are copied into the output file to be resolved at run
4335 sreloc
= _bfd_elf_get_dynamic_reloc_section
4336 (input_bfd
, input_section
, /*rela?*/ TRUE
);
4345 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
4347 if (outrel
.r_offset
== (bfd_vma
) -1)
4349 else if (outrel
.r_offset
== (bfd_vma
) -2)
4350 skip
= TRUE
, relocate
= TRUE
;
4351 outrel
.r_offset
+= (input_section
->output_section
->vma
4352 + input_section
->output_offset
);
4355 memset (&outrel
, 0, sizeof outrel
);
4356 else if (r_type
== R_SH_REL32
)
4358 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
4359 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_REL32
);
4361 = (howto
->partial_inplace
4362 ? bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
)
4365 #ifdef INCLUDE_SHMEDIA
4366 else if (r_type
== R_SH_IMM_LOW16_PCREL
4367 || r_type
== R_SH_IMM_MEDLOW16_PCREL
4368 || r_type
== R_SH_IMM_MEDHI16_PCREL
4369 || r_type
== R_SH_IMM_HI16_PCREL
)
4371 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
4372 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
4373 outrel
.r_addend
= addend
;
4378 || ((info
->symbolic
|| h
->dynindx
== -1)
4379 && h
->def_regular
)))
4383 BFD_ASSERT (sec
!= NULL
);
4384 BFD_ASSERT (sec
->output_section
!= NULL
);
4385 dynindx
= elf_section_data (sec
->output_section
)->dynindx
;
4386 outrel
.r_info
= ELF32_R_INFO (dynindx
, R_SH_DIR32
);
4387 outrel
.r_addend
= relocation
;
4389 += (howto
->partial_inplace
4390 ? bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
)
4392 outrel
.r_addend
-= sec
->output_section
->vma
;
4396 /* h->dynindx may be -1 if this symbol was marked to
4399 || ((info
->symbolic
|| h
->dynindx
== -1)
4402 relocate
= howto
->partial_inplace
;
4403 outrel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
4407 BFD_ASSERT (h
->dynindx
!= -1);
4408 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_DIR32
);
4410 outrel
.r_addend
= relocation
;
4412 += (howto
->partial_inplace
4413 ? bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
)
4417 loc
= sreloc
->contents
;
4418 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4419 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4421 check_segment
[0] = check_segment
[1] = -1;
4423 /* If this reloc is against an external symbol, we do
4424 not want to fiddle with the addend. Otherwise, we
4425 need to include the symbol value so that it becomes
4426 an addend for the dynamic reloc. */
4430 else if (fdpic_p
&& !bfd_link_pic (info
)
4431 && r_type
== R_SH_DIR32
4432 && (input_section
->flags
& SEC_ALLOC
) != 0)
4438 if (sh_elf_osec_readonly_p (output_bfd
,
4439 input_section
->output_section
))
4442 /* xgettext:c-format */
4443 (_("%B(%A+0x%lx): cannot emit fixup to `%s' in read-only section"),
4446 (long) rel
->r_offset
,
4451 offset
= _bfd_elf_section_offset (output_bfd
, info
,
4452 input_section
, rel
->r_offset
);
4453 if (offset
!= (bfd_vma
)-1)
4454 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
4455 input_section
->output_section
->vma
4456 + input_section
->output_offset
4459 check_segment
[0] = check_segment
[1] = -1;
4461 /* We don't want warnings for non-NULL tests on undefined weak
4463 else if (r_type
== R_SH_REL32
4465 && h
->root
.type
== bfd_link_hash_undefweak
)
4466 check_segment
[0] = check_segment
[1] = -1;
4467 goto final_link_relocate
;
4470 #ifdef INCLUDE_SHMEDIA
4471 case R_SH_GOTPLT_LOW16
:
4472 case R_SH_GOTPLT_MEDLOW16
:
4473 case R_SH_GOTPLT_MEDHI16
:
4474 case R_SH_GOTPLT_HI16
:
4475 case R_SH_GOTPLT10BY4
:
4476 case R_SH_GOTPLT10BY8
:
4478 /* Relocation is to the entry for this symbol in the
4479 procedure linkage table. */
4483 || ! bfd_link_pic (info
)
4486 || h
->plt
.offset
== (bfd_vma
) -1
4487 || h
->got
.offset
!= (bfd_vma
) -1)
4490 /* Relocation is to the entry for this symbol in the global
4491 offset table extension for the procedure linkage table. */
4494 BFD_ASSERT (sgotplt
!= NULL
);
4495 relocation
= (sgotplt
->output_offset
4496 + (get_plt_index (htab
->plt_info
, h
->plt
.offset
)
4500 relocation
-= GOT_BIAS
;
4503 goto final_link_relocate
;
4508 #ifdef INCLUDE_SHMEDIA
4509 case R_SH_GOT_LOW16
:
4510 case R_SH_GOT_MEDLOW16
:
4511 case R_SH_GOT_MEDHI16
:
4516 /* Relocation is to the entry for this symbol in the global
4520 BFD_ASSERT (sgot
!= NULL
);
4521 check_segment
[0] = check_segment
[1] = -1;
4527 off
= h
->got
.offset
;
4528 #ifdef INCLUDE_SHMEDIA
4529 if (seen_stt_datalabel
)
4531 struct elf_sh_link_hash_entry
*hsh
;
4533 hsh
= (struct elf_sh_link_hash_entry
*)h
;
4534 off
= hsh
->datalabel_got
.offset
;
4537 BFD_ASSERT (off
!= (bfd_vma
) -1);
4539 dyn
= htab
->root
.dynamic_sections_created
;
4540 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
4541 bfd_link_pic (info
),
4543 || (bfd_link_pic (info
)
4544 && SYMBOL_REFERENCES_LOCAL (info
, h
))
4545 || (ELF_ST_VISIBILITY (h
->other
)
4546 && h
->root
.type
== bfd_link_hash_undefweak
))
4548 /* This is actually a static link, or it is a
4549 -Bsymbolic link and the symbol is defined
4550 locally, or the symbol was forced to be local
4551 because of a version file. We must initialize
4552 this entry in the global offset table. Since the
4553 offset must always be a multiple of 4, we use the
4554 least significant bit to record whether we have
4555 initialized it already.
4557 When doing a dynamic link, we create a .rela.got
4558 relocation entry to initialize the value. This
4559 is done in the finish_dynamic_symbol routine. */
4564 bfd_put_32 (output_bfd
, relocation
,
4565 sgot
->contents
+ off
);
4566 #ifdef INCLUDE_SHMEDIA
4567 if (seen_stt_datalabel
)
4569 struct elf_sh_link_hash_entry
*hsh
;
4571 hsh
= (struct elf_sh_link_hash_entry
*)h
;
4572 hsh
->datalabel_got
.offset
|= 1;
4578 /* If we initialize the GOT entry here with a valid
4579 symbol address, also add a fixup. */
4580 if (fdpic_p
&& !bfd_link_pic (info
)
4581 && sh_elf_hash_entry (h
)->got_type
== GOT_NORMAL
4582 && (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
4583 || h
->root
.type
!= bfd_link_hash_undefweak
))
4584 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
4585 sgot
->output_section
->vma
4586 + sgot
->output_offset
4591 relocation
= sh_elf_got_offset (htab
) + off
;
4595 #ifdef INCLUDE_SHMEDIA
4598 BFD_ASSERT (local_got_offsets
!= NULL
4599 && (local_got_offsets
[symtab_hdr
->sh_info
4603 off
= local_got_offsets
[symtab_hdr
->sh_info
4609 BFD_ASSERT (local_got_offsets
!= NULL
4610 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
4612 off
= local_got_offsets
[r_symndx
];
4613 #ifdef INCLUDE_SHMEDIA
4617 /* The offset must always be a multiple of 4. We use
4618 the least significant bit to record whether we have
4619 already generated the necessary reloc. */
4624 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
4626 if (bfd_link_pic (info
))
4628 Elf_Internal_Rela outrel
;
4631 if (srelgot
== NULL
)
4633 srelgot
= bfd_get_linker_section (dynobj
,
4635 BFD_ASSERT (srelgot
!= NULL
);
4638 outrel
.r_offset
= (sgot
->output_section
->vma
4639 + sgot
->output_offset
4644 = elf_section_data (sec
->output_section
)->dynindx
;
4645 outrel
.r_info
= ELF32_R_INFO (dynindx
, R_SH_DIR32
);
4646 outrel
.r_addend
= relocation
;
4647 outrel
.r_addend
-= sec
->output_section
->vma
;
4651 outrel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
4652 outrel
.r_addend
= relocation
;
4654 loc
= srelgot
->contents
;
4655 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4656 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4659 && (sh_elf_local_got_type (input_bfd
) [r_symndx
]
4661 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
4662 sgot
->output_section
->vma
4663 + sgot
->output_offset
4666 #ifdef INCLUDE_SHMEDIA
4668 local_got_offsets
[symtab_hdr
->sh_info
+ r_symndx
] |= 1;
4671 local_got_offsets
[r_symndx
] |= 1;
4674 relocation
= sh_elf_got_offset (htab
) + off
;
4678 relocation
-= GOT_BIAS
;
4681 if (r_type
== R_SH_GOT20
)
4683 r
= install_movi20_field (output_bfd
, relocation
+ addend
,
4684 input_bfd
, input_section
, contents
,
4689 goto final_link_relocate
;
4693 #ifdef INCLUDE_SHMEDIA
4694 case R_SH_GOTOFF_LOW16
:
4695 case R_SH_GOTOFF_MEDLOW16
:
4696 case R_SH_GOTOFF_MEDHI16
:
4697 case R_SH_GOTOFF_HI16
:
4699 /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which
4700 we place at the start of the .got.plt section. This is the same
4701 as the start of the output .got section, unless there are function
4702 descriptors in front of it. */
4704 BFD_ASSERT (sgotplt
!= NULL
);
4705 check_segment
[0] = got_segment
;
4706 relocation
-= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
4707 + htab
->root
.hgot
->root
.u
.def
.value
;
4710 relocation
-= GOT_BIAS
;
4713 addend
= rel
->r_addend
;
4715 if (r_type
== R_SH_GOTOFF20
)
4717 r
= install_movi20_field (output_bfd
, relocation
+ addend
,
4718 input_bfd
, input_section
, contents
,
4723 goto final_link_relocate
;
4726 #ifdef INCLUDE_SHMEDIA
4727 case R_SH_GOTPC_LOW16
:
4728 case R_SH_GOTPC_MEDLOW16
:
4729 case R_SH_GOTPC_MEDHI16
:
4730 case R_SH_GOTPC_HI16
:
4732 /* Use global offset table as symbol value. */
4734 BFD_ASSERT (sgotplt
!= NULL
);
4735 relocation
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
;
4738 relocation
+= GOT_BIAS
;
4741 addend
= rel
->r_addend
;
4743 goto final_link_relocate
;
4746 #ifdef INCLUDE_SHMEDIA
4747 case R_SH_PLT_LOW16
:
4748 case R_SH_PLT_MEDLOW16
:
4749 case R_SH_PLT_MEDHI16
:
4752 /* Relocation is to the entry for this symbol in the
4753 procedure linkage table. */
4755 /* Resolve a PLT reloc against a local symbol directly,
4756 without using the procedure linkage table. */
4758 goto final_link_relocate
;
4760 /* We don't want to warn on calls to undefined weak symbols,
4761 as calls to them must be protected by non-NULL tests
4762 anyway, and unprotected calls would invoke undefined
4764 if (h
->root
.type
== bfd_link_hash_undefweak
)
4765 check_segment
[0] = check_segment
[1] = -1;
4767 if (h
->forced_local
)
4768 goto final_link_relocate
;
4770 if (h
->plt
.offset
== (bfd_vma
) -1)
4772 /* We didn't make a PLT entry for this symbol. This
4773 happens when statically linking PIC code, or when
4774 using -Bsymbolic. */
4775 goto final_link_relocate
;
4778 BFD_ASSERT (splt
!= NULL
);
4779 check_segment
[1] = plt_segment
;
4780 relocation
= (splt
->output_section
->vma
4781 + splt
->output_offset
4784 #ifdef INCLUDE_SHMEDIA
4788 addend
= rel
->r_addend
;
4790 goto final_link_relocate
;
4792 /* Relocation is to the canonical function descriptor for this
4793 symbol, possibly via the GOT. Initialize the GOT
4794 entry and function descriptor if necessary. */
4795 case R_SH_GOTFUNCDESC
:
4796 case R_SH_GOTFUNCDESC20
:
4800 asection
*reloc_section
;
4801 bfd_vma reloc_offset
;
4802 int reloc_type
= R_SH_FUNCDESC
;
4806 check_segment
[0] = check_segment
[1] = -1;
4808 /* FIXME: See what FRV does for global symbols in the
4809 executable, with --export-dynamic. Do they need ld.so
4810 to allocate official descriptors? See what this code
4816 if (r_type
== R_SH_FUNCDESC
)
4818 reloc_section
= input_section
;
4819 reloc_offset
= rel
->r_offset
;
4823 reloc_section
= sgot
;
4826 reloc_offset
= h
->got
.offset
;
4829 BFD_ASSERT (local_got_offsets
!= NULL
);
4830 reloc_offset
= local_got_offsets
[r_symndx
];
4832 BFD_ASSERT (reloc_offset
!= MINUS_ONE
);
4834 if (reloc_offset
& 1)
4837 goto funcdesc_done_got
;
4841 if (h
&& h
->root
.type
== bfd_link_hash_undefweak
4842 && (SYMBOL_CALLS_LOCAL (info
, h
)
4843 || !htab
->root
.dynamic_sections_created
))
4844 /* Undefined weak symbol which will not be dynamically
4845 resolved later; leave it at zero. */
4846 goto funcdesc_leave_zero
;
4847 else if (SYMBOL_CALLS_LOCAL (info
, h
)
4848 && ! SYMBOL_FUNCDESC_LOCAL (info
, h
))
4850 /* If the symbol needs a non-local function descriptor
4851 but binds locally (i.e., its visibility is
4852 protected), emit a dynamic relocation decayed to
4853 section+offset. This is an optimization; the dynamic
4854 linker would resolve our function descriptor request
4855 to our copy of the function anyway. */
4856 dynindx
= elf_section_data (h
->root
.u
.def
.section
4857 ->output_section
)->dynindx
;
4858 relocation
+= h
->root
.u
.def
.section
->output_offset
4859 + h
->root
.u
.def
.value
;
4861 else if (! SYMBOL_FUNCDESC_LOCAL (info
, h
))
4863 /* If the symbol is dynamic and there will be dynamic
4864 symbol resolution because we are or are linked with a
4865 shared library, emit a FUNCDESC relocation such that
4866 the dynamic linker will allocate the function
4868 BFD_ASSERT (h
->dynindx
!= -1);
4869 dynindx
= h
->dynindx
;
4875 /* Otherwise, we know we have a private function
4876 descriptor, so reference it directly. */
4877 reloc_type
= R_SH_DIR32
;
4878 dynindx
= elf_section_data (htab
->sfuncdesc
4879 ->output_section
)->dynindx
;
4883 offset
= sh_elf_hash_entry (h
)->funcdesc
.offset
;
4884 BFD_ASSERT (offset
!= MINUS_ONE
);
4885 if ((offset
& 1) == 0)
4887 if (!sh_elf_initialize_funcdesc (output_bfd
, info
, h
,
4890 sh_elf_hash_entry (h
)->funcdesc
.offset
|= 1;
4895 union gotref
*local_funcdesc
;
4897 local_funcdesc
= sh_elf_local_funcdesc (input_bfd
);
4898 offset
= local_funcdesc
[r_symndx
].offset
;
4899 BFD_ASSERT (offset
!= MINUS_ONE
);
4900 if ((offset
& 1) == 0)
4902 if (!sh_elf_initialize_funcdesc (output_bfd
, info
, NULL
,
4906 local_funcdesc
[r_symndx
].offset
|= 1;
4910 relocation
= htab
->sfuncdesc
->output_offset
+ (offset
& ~1);
4913 if (!bfd_link_pic (info
) && SYMBOL_FUNCDESC_LOCAL (info
, h
))
4917 if (sh_elf_osec_readonly_p (output_bfd
,
4918 reloc_section
->output_section
))
4921 /* xgettext:c-format */
4922 (_("%B(%A+0x%lx): cannot emit fixup to `%s' in read-only section"),
4925 (long) rel
->r_offset
,
4930 offset
= _bfd_elf_section_offset (output_bfd
, info
,
4931 reloc_section
, reloc_offset
);
4933 if (offset
!= (bfd_vma
)-1)
4934 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
,
4936 + reloc_section
->output_section
->vma
4937 + reloc_section
->output_offset
);
4939 else if ((reloc_section
->output_section
->flags
4940 & (SEC_ALLOC
| SEC_LOAD
)) == (SEC_ALLOC
| SEC_LOAD
))
4944 if (sh_elf_osec_readonly_p (output_bfd
,
4945 reloc_section
->output_section
))
4947 info
->callbacks
->warning
4949 _("cannot emit dynamic relocations in read-only section"),
4950 symname
, input_bfd
, reloc_section
, reloc_offset
);
4954 if (srelgot
== NULL
)
4956 srelgot
= bfd_get_linker_section (dynobj
, ".rela.got");
4957 BFD_ASSERT (srelgot
!= NULL
);
4960 offset
= _bfd_elf_section_offset (output_bfd
, info
,
4961 reloc_section
, reloc_offset
);
4963 if (offset
!= (bfd_vma
)-1)
4964 sh_elf_add_dyn_reloc (output_bfd
, srelgot
,
4966 + reloc_section
->output_section
->vma
4967 + reloc_section
->output_offset
,
4968 reloc_type
, dynindx
, relocation
);
4970 if (r_type
== R_SH_FUNCDESC
)
4978 goto funcdesc_leave_zero
;
4982 if (SYMBOL_FUNCDESC_LOCAL (info
, h
))
4983 relocation
+= htab
->sfuncdesc
->output_section
->vma
;
4984 funcdesc_leave_zero
:
4985 if (r_type
!= R_SH_FUNCDESC
)
4987 bfd_put_32 (output_bfd
, relocation
,
4988 reloc_section
->contents
+ reloc_offset
);
4992 local_got_offsets
[r_symndx
] |= 1;
4996 relocation
= sh_elf_got_offset (htab
) + reloc_offset
;
4998 relocation
-= GOT_BIAS
;
5001 if (r_type
== R_SH_GOTFUNCDESC20
)
5003 r
= install_movi20_field (output_bfd
, relocation
+ addend
,
5004 input_bfd
, input_section
, contents
,
5009 goto final_link_relocate
;
5013 case R_SH_GOTOFFFUNCDESC
:
5014 case R_SH_GOTOFFFUNCDESC20
:
5015 /* FIXME: See R_SH_FUNCDESC comment about global symbols in the
5016 executable and --export-dynamic. If such symbols get
5017 ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC
5021 check_segment
[0] = check_segment
[1] = -1;
5023 addend
= rel
->r_addend
;
5025 if (h
&& (h
->root
.type
== bfd_link_hash_undefweak
5026 || !SYMBOL_FUNCDESC_LOCAL (info
, h
)))
5029 /* xgettext:c-format */
5030 (_("%B(%A+0x%lx): %s relocation against external symbol \"%s\""),
5031 input_bfd
, input_section
, (long) rel
->r_offset
, howto
->name
,
5032 h
->root
.root
.string
);
5039 /* Otherwise, we know we have a private function
5040 descriptor, so reference it directly. */
5043 offset
= sh_elf_hash_entry (h
)->funcdesc
.offset
;
5044 BFD_ASSERT (offset
!= MINUS_ONE
);
5045 if ((offset
& 1) == 0)
5047 if (!sh_elf_initialize_funcdesc (output_bfd
, info
, h
,
5050 sh_elf_hash_entry (h
)->funcdesc
.offset
|= 1;
5055 union gotref
*local_funcdesc
;
5057 local_funcdesc
= sh_elf_local_funcdesc (input_bfd
);
5058 offset
= local_funcdesc
[r_symndx
].offset
;
5059 BFD_ASSERT (offset
!= MINUS_ONE
);
5060 if ((offset
& 1) == 0)
5062 if (!sh_elf_initialize_funcdesc (output_bfd
, info
, NULL
,
5066 local_funcdesc
[r_symndx
].offset
|= 1;
5070 relocation
= htab
->sfuncdesc
->output_offset
+ (offset
& ~1);
5073 relocation
-= (htab
->root
.hgot
->root
.u
.def
.value
5074 + sgotplt
->output_offset
);
5076 relocation
-= GOT_BIAS
;
5079 if (r_type
== R_SH_GOTOFFFUNCDESC20
)
5081 r
= install_movi20_field (output_bfd
, relocation
+ addend
,
5082 input_bfd
, input_section
, contents
,
5087 goto final_link_relocate
;
5089 case R_SH_LOOP_START
:
5091 static bfd_vma start
, end
;
5093 start
= (relocation
+ rel
->r_addend
5094 - (sec
->output_section
->vma
+ sec
->output_offset
));
5095 r
= sh_elf_reloc_loop (r_type
, input_bfd
, input_section
, contents
,
5096 rel
->r_offset
, sec
, start
, end
);
5100 end
= (relocation
+ rel
->r_addend
5101 - (sec
->output_section
->vma
+ sec
->output_offset
));
5102 r
= sh_elf_reloc_loop (r_type
, input_bfd
, input_section
, contents
,
5103 rel
->r_offset
, sec
, start
, end
);
5107 case R_SH_TLS_GD_32
:
5108 case R_SH_TLS_IE_32
:
5110 check_segment
[0] = check_segment
[1] = -1;
5111 r_type
= sh_elf_optimized_tls_reloc (info
, r_type
, h
== NULL
);
5112 got_type
= GOT_UNKNOWN
;
5113 if (h
== NULL
&& local_got_offsets
)
5114 got_type
= sh_elf_local_got_type (input_bfd
) [r_symndx
];
5117 got_type
= sh_elf_hash_entry (h
)->got_type
;
5118 if (! bfd_link_pic (info
)
5119 && (h
->dynindx
== -1
5121 r_type
= R_SH_TLS_LE_32
;
5124 if (r_type
== R_SH_TLS_GD_32
&& got_type
== GOT_TLS_IE
)
5125 r_type
= R_SH_TLS_IE_32
;
5127 if (r_type
== R_SH_TLS_LE_32
)
5130 unsigned short insn
;
5132 if (ELF32_R_TYPE (rel
->r_info
) == R_SH_TLS_GD_32
)
5134 /* GD->LE transition:
5135 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5136 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5137 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
5139 mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
5141 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
5143 offset
= rel
->r_offset
;
5144 BFD_ASSERT (offset
>= 16);
5145 /* Size of GD instructions is 16 or 18. */
5147 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
5148 if ((insn
& 0xff00) == 0xc700)
5150 BFD_ASSERT (offset
>= 2);
5152 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
5155 BFD_ASSERT ((insn
& 0xff00) == 0xd400);
5156 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
5157 BFD_ASSERT ((insn
& 0xff00) == 0xc700);
5158 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
5159 BFD_ASSERT ((insn
& 0xff00) == 0xd100);
5160 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 6);
5161 BFD_ASSERT (insn
== 0x310c);
5162 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 8);
5163 BFD_ASSERT (insn
== 0x410b);
5164 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 10);
5165 BFD_ASSERT (insn
== 0x34cc);
5167 bfd_put_16 (output_bfd
, 0x0012, contents
+ offset
+ 2);
5168 bfd_put_16 (output_bfd
, 0x304c, contents
+ offset
+ 4);
5169 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 6);
5170 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 8);
5171 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 10);
5177 /* IE->LE transition:
5178 mov.l 1f,r0; stc gbr,rN; mov.l @(r0,r12),rM;
5179 bra 2f; add ...; .align 2; 1: x@GOTTPOFF; 2:
5181 mov.l .Ln,rM; stc gbr,rN; nop; ...;
5184 offset
= rel
->r_offset
;
5185 BFD_ASSERT (offset
>= 16);
5186 /* Size of IE instructions is 10 or 12. */
5188 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
5189 if ((insn
& 0xf0ff) == 0x0012)
5191 BFD_ASSERT (offset
>= 2);
5193 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
5196 BFD_ASSERT ((insn
& 0xff00) == 0xd000);
5197 target
= insn
& 0x00ff;
5198 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
5199 BFD_ASSERT ((insn
& 0xf0ff) == 0x0012);
5200 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
5201 BFD_ASSERT ((insn
& 0xf0ff) == 0x00ce);
5202 insn
= 0xd000 | (insn
& 0x0f00) | target
;
5203 bfd_put_16 (output_bfd
, insn
, contents
+ offset
+ 0);
5204 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 4);
5207 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
5208 contents
+ rel
->r_offset
);
5212 if (sgot
== NULL
|| sgotplt
== NULL
)
5216 off
= h
->got
.offset
;
5219 if (local_got_offsets
== NULL
)
5222 off
= local_got_offsets
[r_symndx
];
5225 /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
5226 if (r_type
== R_SH_TLS_IE_32
5227 && ! htab
->root
.dynamic_sections_created
)
5230 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
5231 sgot
->contents
+ off
);
5232 bfd_put_32 (output_bfd
, sh_elf_got_offset (htab
) + off
,
5233 contents
+ rel
->r_offset
);
5241 Elf_Internal_Rela outrel
;
5245 if (srelgot
== NULL
)
5247 srelgot
= bfd_get_linker_section (dynobj
, ".rela.got");
5248 BFD_ASSERT (srelgot
!= NULL
);
5251 outrel
.r_offset
= (sgot
->output_section
->vma
5252 + sgot
->output_offset
+ off
);
5254 if (h
== NULL
|| h
->dynindx
== -1)
5259 dr_type
= (r_type
== R_SH_TLS_GD_32
? R_SH_TLS_DTPMOD32
:
5261 if (dr_type
== R_SH_TLS_TPOFF32
&& indx
== 0)
5262 outrel
.r_addend
= relocation
- dtpoff_base (info
);
5264 outrel
.r_addend
= 0;
5265 outrel
.r_info
= ELF32_R_INFO (indx
, dr_type
);
5266 loc
= srelgot
->contents
;
5267 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
5268 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5270 if (r_type
== R_SH_TLS_GD_32
)
5274 bfd_put_32 (output_bfd
,
5275 relocation
- dtpoff_base (info
),
5276 sgot
->contents
+ off
+ 4);
5280 outrel
.r_info
= ELF32_R_INFO (indx
,
5282 outrel
.r_offset
+= 4;
5283 outrel
.r_addend
= 0;
5284 srelgot
->reloc_count
++;
5285 loc
+= sizeof (Elf32_External_Rela
);
5286 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5293 local_got_offsets
[r_symndx
] |= 1;
5296 if (off
>= (bfd_vma
) -2)
5299 if (r_type
== (int) ELF32_R_TYPE (rel
->r_info
))
5300 relocation
= sh_elf_got_offset (htab
) + off
;
5304 unsigned short insn
;
5306 /* GD->IE transition:
5307 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5308 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5309 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
5311 mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
5312 nop; nop; bra 3f; nop; .align 2;
5313 1: .long x@TPOFF; 2:...; 3:. */
5315 offset
= rel
->r_offset
;
5316 BFD_ASSERT (offset
>= 16);
5317 /* Size of GD instructions is 16 or 18. */
5319 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
5320 if ((insn
& 0xff00) == 0xc700)
5322 BFD_ASSERT (offset
>= 2);
5324 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
5327 BFD_ASSERT ((insn
& 0xff00) == 0xd400);
5329 /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
5330 bfd_put_16 (output_bfd
, insn
& 0xf0ff, contents
+ offset
);
5332 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
5333 BFD_ASSERT ((insn
& 0xff00) == 0xc700);
5334 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
5335 BFD_ASSERT ((insn
& 0xff00) == 0xd100);
5336 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 6);
5337 BFD_ASSERT (insn
== 0x310c);
5338 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 8);
5339 BFD_ASSERT (insn
== 0x410b);
5340 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 10);
5341 BFD_ASSERT (insn
== 0x34cc);
5343 bfd_put_16 (output_bfd
, 0x0412, contents
+ offset
+ 2);
5344 bfd_put_16 (output_bfd
, 0x00ce, contents
+ offset
+ 4);
5345 bfd_put_16 (output_bfd
, 0x304c, contents
+ offset
+ 6);
5346 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 8);
5347 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 10);
5349 bfd_put_32 (output_bfd
, sh_elf_got_offset (htab
) + off
,
5350 contents
+ rel
->r_offset
);
5355 addend
= rel
->r_addend
;
5357 goto final_link_relocate
;
5359 case R_SH_TLS_LD_32
:
5361 check_segment
[0] = check_segment
[1] = -1;
5362 if (! bfd_link_pic (info
))
5365 unsigned short insn
;
5367 /* LD->LE transition:
5368 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
5369 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
5370 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
5372 stc gbr,r0; nop; nop; nop;
5373 nop; nop; bra 3f; ...; 3:. */
5375 offset
= rel
->r_offset
;
5376 BFD_ASSERT (offset
>= 16);
5377 /* Size of LD instructions is 16 or 18. */
5379 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
5380 if ((insn
& 0xff00) == 0xc700)
5382 BFD_ASSERT (offset
>= 2);
5384 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
5387 BFD_ASSERT ((insn
& 0xff00) == 0xd400);
5388 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
5389 BFD_ASSERT ((insn
& 0xff00) == 0xc700);
5390 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
5391 BFD_ASSERT ((insn
& 0xff00) == 0xd100);
5392 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 6);
5393 BFD_ASSERT (insn
== 0x310c);
5394 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 8);
5395 BFD_ASSERT (insn
== 0x410b);
5396 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 10);
5397 BFD_ASSERT (insn
== 0x34cc);
5399 bfd_put_16 (output_bfd
, 0x0012, contents
+ offset
+ 0);
5400 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 2);
5401 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 4);
5402 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 6);
5403 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 8);
5404 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 10);
5409 if (sgot
== NULL
|| sgotplt
== NULL
)
5412 off
= htab
->tls_ldm_got
.offset
;
5417 Elf_Internal_Rela outrel
;
5420 srelgot
= htab
->srelgot
;
5421 if (srelgot
== NULL
)
5424 outrel
.r_offset
= (sgot
->output_section
->vma
5425 + sgot
->output_offset
+ off
);
5426 outrel
.r_addend
= 0;
5427 outrel
.r_info
= ELF32_R_INFO (0, R_SH_TLS_DTPMOD32
);
5428 loc
= srelgot
->contents
;
5429 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
5430 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5431 htab
->tls_ldm_got
.offset
|= 1;
5434 relocation
= sh_elf_got_offset (htab
) + off
;
5435 addend
= rel
->r_addend
;
5437 goto final_link_relocate
;
5439 case R_SH_TLS_LDO_32
:
5440 check_segment
[0] = check_segment
[1] = -1;
5441 if (! bfd_link_pic (info
))
5442 relocation
= tpoff (info
, relocation
);
5444 relocation
-= dtpoff_base (info
);
5446 addend
= rel
->r_addend
;
5447 goto final_link_relocate
;
5449 case R_SH_TLS_LE_32
:
5452 Elf_Internal_Rela outrel
;
5455 check_segment
[0] = check_segment
[1] = -1;
5457 if (!bfd_link_dll (info
))
5459 relocation
= tpoff (info
, relocation
);
5460 addend
= rel
->r_addend
;
5461 goto final_link_relocate
;
5466 sreloc
= _bfd_elf_get_dynamic_reloc_section
5467 (input_bfd
, input_section
, /*rela?*/ TRUE
);
5472 if (h
== NULL
|| h
->dynindx
== -1)
5477 outrel
.r_offset
= (input_section
->output_section
->vma
5478 + input_section
->output_offset
5480 outrel
.r_info
= ELF32_R_INFO (indx
, R_SH_TLS_TPOFF32
);
5482 outrel
.r_addend
= relocation
- dtpoff_base (info
);
5484 outrel
.r_addend
= 0;
5486 loc
= sreloc
->contents
;
5487 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
5488 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5494 if (fdpic_p
&& check_segment
[0] != (unsigned) -1
5495 && check_segment
[0] != check_segment
[1])
5497 /* We don't want duplicate errors for undefined symbols. */
5498 if (!h
|| h
->root
.type
!= bfd_link_hash_undefined
)
5500 if (bfd_link_pic (info
))
5502 info
->callbacks
->einfo
5503 /* xgettext:c-format */
5504 (_("%X%C: relocation to \"%s\" references a different segment\n"),
5505 input_bfd
, input_section
, rel
->r_offset
, symname
);
5509 info
->callbacks
->einfo
5510 /* xgettext:c-format */
5511 (_("%C: warning: relocation to \"%s\" references a different segment\n"),
5512 input_bfd
, input_section
, rel
->r_offset
, symname
);
5515 elf_elfheader (output_bfd
)->e_flags
|= EF_SH_PIC
;
5518 if (r
!= bfd_reloc_ok
)
5523 case bfd_reloc_outofrange
:
5525 case bfd_reloc_overflow
:
5533 name
= (bfd_elf_string_from_elf_section
5534 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
5538 name
= bfd_section_name (input_bfd
, sec
);
5540 (*info
->callbacks
->reloc_overflow
)
5541 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
5542 (bfd_vma
) 0, input_bfd
, input_section
, rel
->r_offset
);
5552 /* This is a version of bfd_generic_get_relocated_section_contents
5553 which uses sh_elf_relocate_section. */
5556 sh_elf_get_relocated_section_contents (bfd
*output_bfd
,
5557 struct bfd_link_info
*link_info
,
5558 struct bfd_link_order
*link_order
,
5560 bfd_boolean relocatable
,
5563 Elf_Internal_Shdr
*symtab_hdr
;
5564 asection
*input_section
= link_order
->u
.indirect
.section
;
5565 bfd
*input_bfd
= input_section
->owner
;
5566 asection
**sections
= NULL
;
5567 Elf_Internal_Rela
*internal_relocs
= NULL
;
5568 Elf_Internal_Sym
*isymbuf
= NULL
;
5570 /* We only need to handle the case of relaxing, or of having a
5571 particular set of section contents, specially. */
5573 || elf_section_data (input_section
)->this_hdr
.contents
== NULL
)
5574 return bfd_generic_get_relocated_section_contents (output_bfd
, link_info
,
5579 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
5581 memcpy (data
, elf_section_data (input_section
)->this_hdr
.contents
,
5582 (size_t) input_section
->size
);
5584 if ((input_section
->flags
& SEC_RELOC
) != 0
5585 && input_section
->reloc_count
> 0)
5588 Elf_Internal_Sym
*isym
, *isymend
;
5591 internal_relocs
= (_bfd_elf_link_read_relocs
5592 (input_bfd
, input_section
, NULL
,
5593 (Elf_Internal_Rela
*) NULL
, FALSE
));
5594 if (internal_relocs
== NULL
)
5597 if (symtab_hdr
->sh_info
!= 0)
5599 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
5600 if (isymbuf
== NULL
)
5601 isymbuf
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
5602 symtab_hdr
->sh_info
, 0,
5604 if (isymbuf
== NULL
)
5608 amt
= symtab_hdr
->sh_info
;
5609 amt
*= sizeof (asection
*);
5610 sections
= (asection
**) bfd_malloc (amt
);
5611 if (sections
== NULL
&& amt
!= 0)
5614 isymend
= isymbuf
+ symtab_hdr
->sh_info
;
5615 for (isym
= isymbuf
, secpp
= sections
; isym
< isymend
; ++isym
, ++secpp
)
5619 if (isym
->st_shndx
== SHN_UNDEF
)
5620 isec
= bfd_und_section_ptr
;
5621 else if (isym
->st_shndx
== SHN_ABS
)
5622 isec
= bfd_abs_section_ptr
;
5623 else if (isym
->st_shndx
== SHN_COMMON
)
5624 isec
= bfd_com_section_ptr
;
5626 isec
= bfd_section_from_elf_index (input_bfd
, isym
->st_shndx
);
5631 if (! sh_elf_relocate_section (output_bfd
, link_info
, input_bfd
,
5632 input_section
, data
, internal_relocs
,
5636 if (sections
!= NULL
)
5639 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
5641 if (elf_section_data (input_section
)->relocs
!= internal_relocs
)
5642 free (internal_relocs
);
5648 if (sections
!= NULL
)
5651 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
5653 if (internal_relocs
!= NULL
5654 && elf_section_data (input_section
)->relocs
!= internal_relocs
)
5655 free (internal_relocs
);
5659 /* Return the base VMA address which should be subtracted from real addresses
5660 when resolving @dtpoff relocation.
5661 This is PT_TLS segment p_vaddr. */
5664 dtpoff_base (struct bfd_link_info
*info
)
5666 /* If tls_sec is NULL, we should have signalled an error already. */
5667 if (elf_hash_table (info
)->tls_sec
== NULL
)
5669 return elf_hash_table (info
)->tls_sec
->vma
;
5672 /* Return the relocation value for R_SH_TLS_TPOFF32.. */
5675 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
5677 /* If tls_sec is NULL, we should have signalled an error already. */
5678 if (elf_hash_table (info
)->tls_sec
== NULL
)
5680 /* SH TLS ABI is variant I and static TLS block start just after tcbhead
5681 structure which has 2 pointer fields. */
5682 return (address
- elf_hash_table (info
)->tls_sec
->vma
5683 + align_power ((bfd_vma
) 8,
5684 elf_hash_table (info
)->tls_sec
->alignment_power
));
5688 sh_elf_gc_mark_hook (asection
*sec
,
5689 struct bfd_link_info
*info
,
5690 Elf_Internal_Rela
*rel
,
5691 struct elf_link_hash_entry
*h
,
5692 Elf_Internal_Sym
*sym
)
5695 switch (ELF32_R_TYPE (rel
->r_info
))
5697 case R_SH_GNU_VTINHERIT
:
5698 case R_SH_GNU_VTENTRY
:
5702 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
5705 /* Copy the extra info we tack onto an elf_link_hash_entry. */
5708 sh_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
5709 struct elf_link_hash_entry
*dir
,
5710 struct elf_link_hash_entry
*ind
)
5712 struct elf_sh_link_hash_entry
*edir
, *eind
;
5714 edir
= (struct elf_sh_link_hash_entry
*) dir
;
5715 eind
= (struct elf_sh_link_hash_entry
*) ind
;
5717 if (eind
->dyn_relocs
!= NULL
)
5719 if (edir
->dyn_relocs
!= NULL
)
5721 struct elf_sh_dyn_relocs
**pp
;
5722 struct elf_sh_dyn_relocs
*p
;
5724 /* Add reloc counts against the indirect sym to the direct sym
5725 list. Merge any entries against the same section. */
5726 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
5728 struct elf_sh_dyn_relocs
*q
;
5730 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
5731 if (q
->sec
== p
->sec
)
5733 q
->pc_count
+= p
->pc_count
;
5734 q
->count
+= p
->count
;
5741 *pp
= edir
->dyn_relocs
;
5744 edir
->dyn_relocs
= eind
->dyn_relocs
;
5745 eind
->dyn_relocs
= NULL
;
5747 edir
->gotplt_refcount
= eind
->gotplt_refcount
;
5748 eind
->gotplt_refcount
= 0;
5749 #ifdef INCLUDE_SHMEDIA
5750 edir
->datalabel_got
.refcount
+= eind
->datalabel_got
.refcount
;
5751 eind
->datalabel_got
.refcount
= 0;
5753 edir
->funcdesc
.refcount
+= eind
->funcdesc
.refcount
;
5754 eind
->funcdesc
.refcount
= 0;
5755 edir
->abs_funcdesc_refcount
+= eind
->abs_funcdesc_refcount
;
5756 eind
->abs_funcdesc_refcount
= 0;
5758 if (ind
->root
.type
== bfd_link_hash_indirect
5759 && dir
->got
.refcount
<= 0)
5761 edir
->got_type
= eind
->got_type
;
5762 eind
->got_type
= GOT_UNKNOWN
;
5765 if (ind
->root
.type
!= bfd_link_hash_indirect
5766 && dir
->dynamic_adjusted
)
5768 /* If called to transfer flags for a weakdef during processing
5769 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
5770 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
5771 dir
->ref_dynamic
|= ind
->ref_dynamic
;
5772 dir
->ref_regular
|= ind
->ref_regular
;
5773 dir
->ref_regular_nonweak
|= ind
->ref_regular_nonweak
;
5774 dir
->needs_plt
|= ind
->needs_plt
;
5777 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
5781 sh_elf_optimized_tls_reloc (struct bfd_link_info
*info
, int r_type
,
5784 if (bfd_link_pic (info
))
5789 case R_SH_TLS_GD_32
:
5790 case R_SH_TLS_IE_32
:
5792 return R_SH_TLS_LE_32
;
5793 return R_SH_TLS_IE_32
;
5794 case R_SH_TLS_LD_32
:
5795 return R_SH_TLS_LE_32
;
5801 /* Look through the relocs for a section during the first phase.
5802 Since we don't do .gots or .plts, we just need to consider the
5803 virtual table relocs for gc. */
5806 sh_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
5807 const Elf_Internal_Rela
*relocs
)
5809 Elf_Internal_Shdr
*symtab_hdr
;
5810 struct elf_link_hash_entry
**sym_hashes
;
5811 struct elf_sh_link_hash_table
*htab
;
5812 const Elf_Internal_Rela
*rel
;
5813 const Elf_Internal_Rela
*rel_end
;
5815 unsigned int r_type
;
5816 enum got_type got_type
, old_got_type
;
5820 if (bfd_link_relocatable (info
))
5823 BFD_ASSERT (is_sh_elf (abfd
));
5825 symtab_hdr
= &elf_symtab_hdr (abfd
);
5826 sym_hashes
= elf_sym_hashes (abfd
);
5828 htab
= sh_elf_hash_table (info
);
5832 rel_end
= relocs
+ sec
->reloc_count
;
5833 for (rel
= relocs
; rel
< rel_end
; rel
++)
5835 struct elf_link_hash_entry
*h
;
5836 unsigned long r_symndx
;
5837 #ifdef INCLUDE_SHMEDIA
5838 int seen_stt_datalabel
= 0;
5841 r_symndx
= ELF32_R_SYM (rel
->r_info
);
5842 r_type
= ELF32_R_TYPE (rel
->r_info
);
5844 if (r_symndx
< symtab_hdr
->sh_info
)
5848 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
5849 while (h
->root
.type
== bfd_link_hash_indirect
5850 || h
->root
.type
== bfd_link_hash_warning
)
5852 #ifdef INCLUDE_SHMEDIA
5853 seen_stt_datalabel
|= h
->type
== STT_DATALABEL
;
5855 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
5858 /* PR15323, ref flags aren't set for references in the same
5860 h
->root
.non_ir_ref
= 1;
5863 r_type
= sh_elf_optimized_tls_reloc (info
, r_type
, h
== NULL
);
5864 if (! bfd_link_pic (info
)
5865 && r_type
== R_SH_TLS_IE_32
5867 && h
->root
.type
!= bfd_link_hash_undefined
5868 && h
->root
.type
!= bfd_link_hash_undefweak
5869 && (h
->dynindx
== -1
5871 r_type
= R_SH_TLS_LE_32
;
5876 case R_SH_GOTOFFFUNCDESC
:
5877 case R_SH_GOTOFFFUNCDESC20
:
5879 case R_SH_GOTFUNCDESC
:
5880 case R_SH_GOTFUNCDESC20
:
5883 if (h
->dynindx
== -1)
5884 switch (ELF_ST_VISIBILITY (h
->other
))
5890 bfd_elf_link_record_dynamic_symbol (info
, h
);
5897 /* Some relocs require a global offset table. */
5898 if (htab
->sgot
== NULL
)
5903 /* This may require an rofixup. */
5913 case R_SH_GOTFUNCDESC
:
5914 case R_SH_GOTFUNCDESC20
:
5915 case R_SH_GOTOFFFUNCDESC
:
5916 case R_SH_GOTOFFFUNCDESC20
:
5918 #ifdef INCLUDE_SHMEDIA
5919 case R_SH_GOTPLT_LOW16
:
5920 case R_SH_GOTPLT_MEDLOW16
:
5921 case R_SH_GOTPLT_MEDHI16
:
5922 case R_SH_GOTPLT_HI16
:
5923 case R_SH_GOTPLT10BY4
:
5924 case R_SH_GOTPLT10BY8
:
5925 case R_SH_GOT_LOW16
:
5926 case R_SH_GOT_MEDLOW16
:
5927 case R_SH_GOT_MEDHI16
:
5931 case R_SH_GOTOFF_LOW16
:
5932 case R_SH_GOTOFF_MEDLOW16
:
5933 case R_SH_GOTOFF_MEDHI16
:
5934 case R_SH_GOTOFF_HI16
:
5935 case R_SH_GOTPC_LOW16
:
5936 case R_SH_GOTPC_MEDLOW16
:
5937 case R_SH_GOTPC_MEDHI16
:
5938 case R_SH_GOTPC_HI16
:
5940 case R_SH_TLS_GD_32
:
5941 case R_SH_TLS_LD_32
:
5942 case R_SH_TLS_IE_32
:
5943 if (htab
->root
.dynobj
== NULL
)
5944 htab
->root
.dynobj
= abfd
;
5945 if (!create_got_section (htab
->root
.dynobj
, info
))
5956 /* This relocation describes the C++ object vtable hierarchy.
5957 Reconstruct it for later use during GC. */
5958 case R_SH_GNU_VTINHERIT
:
5959 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
5963 /* This relocation describes which C++ vtable entries are actually
5964 used. Record for later use during GC. */
5965 case R_SH_GNU_VTENTRY
:
5966 BFD_ASSERT (h
!= NULL
);
5968 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
5972 case R_SH_TLS_IE_32
:
5973 if (bfd_link_pic (info
))
5974 info
->flags
|= DF_STATIC_TLS
;
5978 case R_SH_TLS_GD_32
:
5981 #ifdef INCLUDE_SHMEDIA
5982 case R_SH_GOT_LOW16
:
5983 case R_SH_GOT_MEDLOW16
:
5984 case R_SH_GOT_MEDHI16
:
5989 case R_SH_GOTFUNCDESC
:
5990 case R_SH_GOTFUNCDESC20
:
5994 got_type
= GOT_NORMAL
;
5996 case R_SH_TLS_GD_32
:
5997 got_type
= GOT_TLS_GD
;
5999 case R_SH_TLS_IE_32
:
6000 got_type
= GOT_TLS_IE
;
6002 case R_SH_GOTFUNCDESC
:
6003 case R_SH_GOTFUNCDESC20
:
6004 got_type
= GOT_FUNCDESC
;
6010 #ifdef INCLUDE_SHMEDIA
6011 if (seen_stt_datalabel
)
6013 struct elf_sh_link_hash_entry
*eh
6014 = (struct elf_sh_link_hash_entry
*) h
;
6016 eh
->datalabel_got
.refcount
+= 1;
6020 h
->got
.refcount
+= 1;
6021 old_got_type
= sh_elf_hash_entry (h
)->got_type
;
6025 bfd_signed_vma
*local_got_refcounts
;
6027 /* This is a global offset table entry for a local
6029 local_got_refcounts
= elf_local_got_refcounts (abfd
);
6030 if (local_got_refcounts
== NULL
)
6034 size
= symtab_hdr
->sh_info
;
6035 size
*= sizeof (bfd_signed_vma
);
6036 #ifdef INCLUDE_SHMEDIA
6037 /* Reserve space for both the datalabel and
6038 codelabel local GOT offsets. */
6041 size
+= symtab_hdr
->sh_info
;
6042 local_got_refcounts
= ((bfd_signed_vma
*)
6043 bfd_zalloc (abfd
, size
));
6044 if (local_got_refcounts
== NULL
)
6046 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
6047 #ifdef INCLUDE_SHMEDIA
6048 /* Take care of both the datalabel and codelabel local
6050 sh_elf_local_got_type (abfd
)
6051 = (char *) (local_got_refcounts
+ 2 * symtab_hdr
->sh_info
);
6053 sh_elf_local_got_type (abfd
)
6054 = (char *) (local_got_refcounts
+ symtab_hdr
->sh_info
);
6057 #ifdef INCLUDE_SHMEDIA
6058 if (rel
->r_addend
& 1)
6059 local_got_refcounts
[symtab_hdr
->sh_info
+ r_symndx
] += 1;
6062 local_got_refcounts
[r_symndx
] += 1;
6063 old_got_type
= sh_elf_local_got_type (abfd
) [r_symndx
];
6066 /* If a TLS symbol is accessed using IE at least once,
6067 there is no point to use dynamic model for it. */
6068 if (old_got_type
!= got_type
&& old_got_type
!= GOT_UNKNOWN
6069 && (old_got_type
!= GOT_TLS_GD
|| got_type
!= GOT_TLS_IE
))
6071 if (old_got_type
== GOT_TLS_IE
&& got_type
== GOT_TLS_GD
)
6072 got_type
= GOT_TLS_IE
;
6075 if ((old_got_type
== GOT_FUNCDESC
|| got_type
== GOT_FUNCDESC
)
6076 && (old_got_type
== GOT_NORMAL
|| got_type
== GOT_NORMAL
))
6078 /* xgettext:c-format */
6079 (_("%B: `%s' accessed both as normal and FDPIC symbol"),
6080 abfd
, h
->root
.root
.string
);
6081 else if (old_got_type
== GOT_FUNCDESC
6082 || got_type
== GOT_FUNCDESC
)
6084 /* xgettext:c-format */
6085 (_("%B: `%s' accessed both as FDPIC and thread local symbol"),
6086 abfd
, h
->root
.root
.string
);
6089 /* xgettext:c-format */
6090 (_("%B: `%s' accessed both as normal and thread local symbol"),
6091 abfd
, h
->root
.root
.string
);
6096 if (old_got_type
!= got_type
)
6099 sh_elf_hash_entry (h
)->got_type
= got_type
;
6101 sh_elf_local_got_type (abfd
) [r_symndx
] = got_type
;
6106 case R_SH_TLS_LD_32
:
6107 sh_elf_hash_table(info
)->tls_ldm_got
.refcount
+= 1;
6111 case R_SH_GOTOFFFUNCDESC
:
6112 case R_SH_GOTOFFFUNCDESC20
:
6116 (_("%B: Function descriptor relocation with non-zero addend"),
6123 union gotref
*local_funcdesc
;
6125 /* We need a function descriptor for a local symbol. */
6126 local_funcdesc
= sh_elf_local_funcdesc (abfd
);
6127 if (local_funcdesc
== NULL
)
6131 size
= symtab_hdr
->sh_info
* sizeof (union gotref
);
6132 #ifdef INCLUDE_SHMEDIA
6133 /* Count datalabel local GOT. */
6136 local_funcdesc
= (union gotref
*) bfd_zalloc (abfd
, size
);
6137 if (local_funcdesc
== NULL
)
6139 sh_elf_local_funcdesc (abfd
) = local_funcdesc
;
6141 local_funcdesc
[r_symndx
].refcount
+= 1;
6143 if (r_type
== R_SH_FUNCDESC
)
6145 if (!bfd_link_pic (info
))
6146 htab
->srofixup
->size
+= 4;
6148 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
6153 sh_elf_hash_entry (h
)->funcdesc
.refcount
++;
6154 if (r_type
== R_SH_FUNCDESC
)
6155 sh_elf_hash_entry (h
)->abs_funcdesc_refcount
++;
6157 /* If there is a function descriptor reference, then
6158 there should not be any non-FDPIC references. */
6159 old_got_type
= sh_elf_hash_entry (h
)->got_type
;
6160 if (old_got_type
!= GOT_FUNCDESC
&& old_got_type
!= GOT_UNKNOWN
)
6162 if (old_got_type
== GOT_NORMAL
)
6164 /* xgettext:c-format */
6165 (_("%B: `%s' accessed both as normal and FDPIC symbol"),
6166 abfd
, h
->root
.root
.string
);
6169 /* xgettext:c-format */
6170 (_("%B: `%s' accessed both as FDPIC and thread local symbol"),
6171 abfd
, h
->root
.root
.string
);
6177 #ifdef INCLUDE_SHMEDIA
6178 case R_SH_GOTPLT_LOW16
:
6179 case R_SH_GOTPLT_MEDLOW16
:
6180 case R_SH_GOTPLT_MEDHI16
:
6181 case R_SH_GOTPLT_HI16
:
6182 case R_SH_GOTPLT10BY4
:
6183 case R_SH_GOTPLT10BY8
:
6185 /* If this is a local symbol, we resolve it directly without
6186 creating a procedure linkage table entry. */
6190 || ! bfd_link_pic (info
)
6192 || h
->dynindx
== -1)
6196 h
->plt
.refcount
+= 1;
6197 ((struct elf_sh_link_hash_entry
*) h
)->gotplt_refcount
+= 1;
6202 #ifdef INCLUDE_SHMEDIA
6203 case R_SH_PLT_LOW16
:
6204 case R_SH_PLT_MEDLOW16
:
6205 case R_SH_PLT_MEDHI16
:
6208 /* This symbol requires a procedure linkage table entry. We
6209 actually build the entry in adjust_dynamic_symbol,
6210 because this might be a case of linking PIC code which is
6211 never referenced by a dynamic object, in which case we
6212 don't need to generate a procedure linkage table entry
6215 /* If this is a local symbol, we resolve it directly without
6216 creating a procedure linkage table entry. */
6220 if (h
->forced_local
)
6224 h
->plt
.refcount
+= 1;
6229 #ifdef INCLUDE_SHMEDIA
6230 case R_SH_IMM_LOW16_PCREL
:
6231 case R_SH_IMM_MEDLOW16_PCREL
:
6232 case R_SH_IMM_MEDHI16_PCREL
:
6233 case R_SH_IMM_HI16_PCREL
:
6235 if (h
!= NULL
&& ! bfd_link_pic (info
))
6238 h
->plt
.refcount
+= 1;
6241 /* If we are creating a shared library, and this is a reloc
6242 against a global symbol, or a non PC relative reloc
6243 against a local symbol, then we need to copy the reloc
6244 into the shared library. However, if we are linking with
6245 -Bsymbolic, we do not need to copy a reloc against a
6246 global symbol which is defined in an object we are
6247 including in the link (i.e., DEF_REGULAR is set). At
6248 this point we have not seen all the input files, so it is
6249 possible that DEF_REGULAR is not set now but will be set
6250 later (it is never cleared). We account for that
6251 possibility below by storing information in the
6252 dyn_relocs field of the hash table entry. A similar
6253 situation occurs when creating shared libraries and symbol
6254 visibility changes render the symbol local.
6256 If on the other hand, we are creating an executable, we
6257 may need to keep relocations for symbols satisfied by a
6258 dynamic library if we manage to avoid copy relocs for the
6260 if ((bfd_link_pic (info
)
6261 && (sec
->flags
& SEC_ALLOC
) != 0
6262 && (r_type
!= R_SH_REL32
6264 && (! info
->symbolic
6265 || h
->root
.type
== bfd_link_hash_defweak
6266 || !h
->def_regular
))))
6267 || (! bfd_link_pic (info
)
6268 && (sec
->flags
& SEC_ALLOC
) != 0
6270 && (h
->root
.type
== bfd_link_hash_defweak
6271 || !h
->def_regular
)))
6273 struct elf_sh_dyn_relocs
*p
;
6274 struct elf_sh_dyn_relocs
**head
;
6276 if (htab
->root
.dynobj
== NULL
)
6277 htab
->root
.dynobj
= abfd
;
6279 /* When creating a shared object, we must copy these
6280 reloc types into the output file. We create a reloc
6281 section in dynobj and make room for this reloc. */
6284 sreloc
= _bfd_elf_make_dynamic_reloc_section
6285 (sec
, htab
->root
.dynobj
, 2, abfd
, /*rela?*/ TRUE
);
6291 /* If this is a global symbol, we count the number of
6292 relocations we need for this symbol. */
6294 head
= &((struct elf_sh_link_hash_entry
*) h
)->dyn_relocs
;
6297 /* Track dynamic relocs needed for local syms too. */
6300 Elf_Internal_Sym
*isym
;
6302 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
,
6307 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6311 vpp
= &elf_section_data (s
)->local_dynrel
;
6312 head
= (struct elf_sh_dyn_relocs
**) vpp
;
6316 if (p
== NULL
|| p
->sec
!= sec
)
6318 bfd_size_type amt
= sizeof (*p
);
6319 p
= bfd_alloc (htab
->root
.dynobj
, amt
);
6330 if (r_type
== R_SH_REL32
6331 #ifdef INCLUDE_SHMEDIA
6332 || r_type
== R_SH_IMM_LOW16_PCREL
6333 || r_type
== R_SH_IMM_MEDLOW16_PCREL
6334 || r_type
== R_SH_IMM_MEDHI16_PCREL
6335 || r_type
== R_SH_IMM_HI16_PCREL
6341 /* Allocate the fixup regardless of whether we need a relocation.
6342 If we end up generating the relocation, we'll unallocate the
6344 if (htab
->fdpic_p
&& !bfd_link_pic (info
)
6345 && r_type
== R_SH_DIR32
6346 && (sec
->flags
& SEC_ALLOC
) != 0)
6347 htab
->srofixup
->size
+= 4;
6350 case R_SH_TLS_LE_32
:
6351 if (bfd_link_dll (info
))
6354 (_("%B: TLS local exec code cannot be linked into shared objects"),
6361 case R_SH_TLS_LDO_32
:
6362 /* Nothing to do. */
6373 #ifndef sh_elf_set_mach_from_flags
6374 static unsigned int sh_ef_bfd_table
[] = { EF_SH_BFD_TABLE
};
6377 sh_elf_set_mach_from_flags (bfd
*abfd
)
6379 flagword flags
= elf_elfheader (abfd
)->e_flags
& EF_SH_MACH_MASK
;
6381 if (flags
>= sizeof(sh_ef_bfd_table
))
6384 if (sh_ef_bfd_table
[flags
] == 0)
6387 bfd_default_set_arch_mach (abfd
, bfd_arch_sh
, sh_ef_bfd_table
[flags
]);
6393 /* Reverse table lookup for sh_ef_bfd_table[].
6394 Given a bfd MACH value from archures.c
6395 return the equivalent ELF flags from the table.
6396 Return -1 if no match is found. */
6399 sh_elf_get_flags_from_mach (unsigned long mach
)
6401 int i
= ARRAY_SIZE (sh_ef_bfd_table
) - 1;
6404 if (sh_ef_bfd_table
[i
] == mach
)
6407 /* shouldn't get here */
6412 #endif /* not sh_elf_set_mach_from_flags */
6414 #ifndef sh_elf_copy_private_data
6415 /* Copy backend specific data from one object module to another */
6418 sh_elf_copy_private_data (bfd
* ibfd
, bfd
* obfd
)
6420 if (! is_sh_elf (ibfd
) || ! is_sh_elf (obfd
))
6423 if (! _bfd_elf_copy_private_bfd_data (ibfd
, obfd
))
6426 return sh_elf_set_mach_from_flags (obfd
);
6428 #endif /* not sh_elf_copy_private_data */
6430 #ifndef sh_elf_merge_private_data
6432 /* This function returns the ELF architecture number that
6433 corresponds to the given arch_sh* flags. */
6436 sh_find_elf_flags (unsigned int arch_set
)
6438 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
6439 unsigned long bfd_mach
= sh_get_bfd_mach_from_arch_set (arch_set
);
6441 return sh_elf_get_flags_from_mach (bfd_mach
);
6444 /* Merge the architecture type of two BFD files, such that the
6445 resultant architecture supports all the features required
6446 by the two input BFDs.
6447 If the input BFDs are multually incompatible - i.e. one uses
6448 DSP while the other uses FPU - or there is no known architecture
6449 that fits the requirements then an error is emitted. */
6452 sh_merge_bfd_arch (bfd
*ibfd
, struct bfd_link_info
*info
)
6454 bfd
*obfd
= info
->output_bfd
;
6455 unsigned int old_arch
, new_arch
, merged_arch
;
6457 if (! _bfd_generic_verify_endian_match (ibfd
, info
))
6460 old_arch
= sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd
));
6461 new_arch
= sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd
));
6463 merged_arch
= SH_MERGE_ARCH_SET (old_arch
, new_arch
);
6465 if (!SH_VALID_CO_ARCH_SET (merged_arch
))
6468 /* xgettext:c-format */
6469 (_("%B: uses %s instructions while previous modules "
6470 "use %s instructions"),
6472 SH_ARCH_SET_HAS_DSP (new_arch
) ? "dsp" : "floating point",
6473 SH_ARCH_SET_HAS_DSP (new_arch
) ? "floating point" : "dsp");
6474 bfd_set_error (bfd_error_bad_value
);
6477 else if (!SH_VALID_ARCH_SET (merged_arch
))
6480 /* xgettext:c-format */
6481 (_("internal error: merge of architecture '%s' with "
6482 "architecture '%s' produced unknown architecture"),
6483 bfd_printable_name (obfd
),
6484 bfd_printable_name (ibfd
));
6485 bfd_set_error (bfd_error_bad_value
);
6489 bfd_default_set_arch_mach (obfd
, bfd_arch_sh
,
6490 sh_get_bfd_mach_from_arch_set (merged_arch
));
6495 /* This routine initialises the elf flags when required and
6496 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
6499 sh_elf_merge_private_data (bfd
*ibfd
, struct bfd_link_info
*info
)
6501 bfd
*obfd
= info
->output_bfd
;
6503 if (! is_sh_elf (ibfd
) || ! is_sh_elf (obfd
))
6506 if (! elf_flags_init (obfd
))
6508 /* This happens when ld starts out with a 'blank' output file. */
6509 elf_flags_init (obfd
) = TRUE
;
6510 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6511 sh_elf_set_mach_from_flags (obfd
);
6512 if (elf_elfheader (obfd
)->e_flags
& EF_SH_FDPIC
)
6513 elf_elfheader (obfd
)->e_flags
&= ~EF_SH_PIC
;
6516 if (! sh_merge_bfd_arch (ibfd
, info
))
6518 _bfd_error_handler (_("%B: uses instructions which are incompatible "
6519 "with instructions used in previous modules"),
6521 bfd_set_error (bfd_error_bad_value
);
6525 elf_elfheader (obfd
)->e_flags
&= ~EF_SH_MACH_MASK
;
6526 elf_elfheader (obfd
)->e_flags
|=
6527 sh_elf_get_flags_from_mach (bfd_get_mach (obfd
));
6529 if (fdpic_object_p (ibfd
) != fdpic_object_p (obfd
))
6531 _bfd_error_handler (_("%B: attempt to mix FDPIC and non-FDPIC objects"),
6533 bfd_set_error (bfd_error_bad_value
);
6539 #endif /* not sh_elf_merge_private_data */
6541 /* Override the generic function because we need to store sh_elf_obj_tdata
6542 as the specific tdata. We set also the machine architecture from flags
6546 sh_elf_object_p (bfd
*abfd
)
6548 if (! sh_elf_set_mach_from_flags (abfd
))
6551 return (((elf_elfheader (abfd
)->e_flags
& EF_SH_FDPIC
) != 0)
6552 == fdpic_object_p (abfd
));
6555 /* Finish up dynamic symbol handling. We set the contents of various
6556 dynamic sections here. */
6559 sh_elf_finish_dynamic_symbol (bfd
*output_bfd
, struct bfd_link_info
*info
,
6560 struct elf_link_hash_entry
*h
,
6561 Elf_Internal_Sym
*sym
)
6563 struct elf_sh_link_hash_table
*htab
;
6565 htab
= sh_elf_hash_table (info
);
6569 if (h
->plt
.offset
!= (bfd_vma
) -1)
6577 Elf_Internal_Rela rel
;
6579 const struct elf_sh_plt_info
*plt_info
;
6581 /* This symbol has an entry in the procedure linkage table. Set
6584 BFD_ASSERT (h
->dynindx
!= -1);
6587 sgotplt
= htab
->sgotplt
;
6588 srelplt
= htab
->srelplt
;
6589 BFD_ASSERT (splt
!= NULL
&& sgotplt
!= NULL
&& srelplt
!= NULL
);
6591 /* Get the index in the procedure linkage table which
6592 corresponds to this symbol. This is the index of this symbol
6593 in all the symbols for which we are making plt entries. The
6594 first entry in the procedure linkage table is reserved. */
6595 plt_index
= get_plt_index (htab
->plt_info
, h
->plt
.offset
);
6597 plt_info
= htab
->plt_info
;
6598 if (plt_info
->short_plt
!= NULL
&& plt_index
<= MAX_SHORT_PLT
)
6599 plt_info
= plt_info
->short_plt
;
6601 /* Get the offset into the .got table of the entry that
6602 corresponds to this function. */
6604 /* The offset must be relative to the GOT symbol, twelve bytes
6605 before the end of .got.plt. Each descriptor is eight
6607 got_offset
= plt_index
* 8 + 12 - sgotplt
->size
;
6609 /* Each .got entry is 4 bytes. The first three are
6611 got_offset
= (plt_index
+ 3) * 4;
6614 if (bfd_link_pic (info
))
6615 got_offset
-= GOT_BIAS
;
6618 /* Fill in the entry in the procedure linkage table. */
6619 memcpy (splt
->contents
+ h
->plt
.offset
,
6620 plt_info
->symbol_entry
,
6621 plt_info
->symbol_entry_size
);
6623 if (bfd_link_pic (info
) || htab
->fdpic_p
)
6625 if (plt_info
->symbol_fields
.got20
)
6627 bfd_reloc_status_type r
;
6628 r
= install_movi20_field (output_bfd
, got_offset
,
6629 splt
->owner
, splt
, splt
->contents
,
6631 + plt_info
->symbol_fields
.got_entry
);
6632 BFD_ASSERT (r
== bfd_reloc_ok
);
6635 install_plt_field (output_bfd
, FALSE
, got_offset
,
6638 + plt_info
->symbol_fields
.got_entry
));
6642 BFD_ASSERT (!plt_info
->symbol_fields
.got20
);
6644 install_plt_field (output_bfd
, FALSE
,
6645 (sgotplt
->output_section
->vma
6646 + sgotplt
->output_offset
6650 + plt_info
->symbol_fields
.got_entry
));
6651 if (htab
->vxworks_p
)
6653 unsigned int reachable_plts
, plts_per_4k
;
6656 /* Divide the PLT into groups. The first group contains
6657 REACHABLE_PLTS entries and the other groups contain
6658 PLTS_PER_4K entries. Entries in the first group can
6659 branch directly to .plt; those in later groups branch
6660 to the last element of the previous group. */
6661 /* ??? It would be better to create multiple copies of
6662 the common resolver stub. */
6663 reachable_plts
= ((4096
6664 - plt_info
->plt0_entry_size
6665 - (plt_info
->symbol_fields
.plt
+ 4))
6666 / plt_info
->symbol_entry_size
) + 1;
6667 plts_per_4k
= (4096 / plt_info
->symbol_entry_size
);
6668 if (plt_index
< reachable_plts
)
6669 distance
= -(h
->plt
.offset
6670 + plt_info
->symbol_fields
.plt
);
6672 distance
= -(((plt_index
- reachable_plts
) % plts_per_4k
+ 1)
6673 * plt_info
->symbol_entry_size
);
6675 /* Install the 'bra' with this offset. */
6676 bfd_put_16 (output_bfd
,
6677 0xa000 | (0x0fff & ((distance
- 4) / 2)),
6680 + plt_info
->symbol_fields
.plt
));
6683 install_plt_field (output_bfd
, TRUE
,
6684 splt
->output_section
->vma
+ splt
->output_offset
,
6687 + plt_info
->symbol_fields
.plt
));
6690 /* Make got_offset relative to the start of .got.plt. */
6692 if (bfd_link_pic (info
))
6693 got_offset
+= GOT_BIAS
;
6696 got_offset
= plt_index
* 8;
6698 if (plt_info
->symbol_fields
.reloc_offset
!= MINUS_ONE
)
6699 install_plt_field (output_bfd
, FALSE
,
6700 plt_index
* sizeof (Elf32_External_Rela
),
6703 + plt_info
->symbol_fields
.reloc_offset
));
6705 /* Fill in the entry in the global offset table. */
6706 bfd_put_32 (output_bfd
,
6707 (splt
->output_section
->vma
6708 + splt
->output_offset
6710 + plt_info
->symbol_resolve_offset
),
6711 sgotplt
->contents
+ got_offset
);
6713 bfd_put_32 (output_bfd
,
6714 sh_elf_osec_to_segment (output_bfd
,
6715 htab
->splt
->output_section
),
6716 sgotplt
->contents
+ got_offset
+ 4);
6718 /* Fill in the entry in the .rela.plt section. */
6719 rel
.r_offset
= (sgotplt
->output_section
->vma
6720 + sgotplt
->output_offset
6723 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_FUNCDESC_VALUE
);
6725 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_JMP_SLOT
);
6728 rel
.r_addend
= GOT_BIAS
;
6730 loc
= srelplt
->contents
+ plt_index
* sizeof (Elf32_External_Rela
);
6731 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6733 if (htab
->vxworks_p
&& !bfd_link_pic (info
))
6735 /* Create the .rela.plt.unloaded relocations for this PLT entry.
6736 Begin by pointing LOC to the first such relocation. */
6737 loc
= (htab
->srelplt2
->contents
6738 + (plt_index
* 2 + 1) * sizeof (Elf32_External_Rela
));
6740 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
6741 for the PLT entry's pointer to the .got.plt entry. */
6742 rel
.r_offset
= (htab
->splt
->output_section
->vma
6743 + htab
->splt
->output_offset
6745 + plt_info
->symbol_fields
.got_entry
);
6746 rel
.r_info
= ELF32_R_INFO (htab
->root
.hgot
->indx
, R_SH_DIR32
);
6747 rel
.r_addend
= got_offset
;
6748 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6749 loc
+= sizeof (Elf32_External_Rela
);
6751 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
6752 the .got.plt entry, which initially points to .plt. */
6753 rel
.r_offset
= (sgotplt
->output_section
->vma
6754 + sgotplt
->output_offset
6756 rel
.r_info
= ELF32_R_INFO (htab
->root
.hplt
->indx
, R_SH_DIR32
);
6758 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
6761 if (!h
->def_regular
)
6763 /* Mark the symbol as undefined, rather than as defined in
6764 the .plt section. Leave the value alone. */
6765 sym
->st_shndx
= SHN_UNDEF
;
6769 if (h
->got
.offset
!= (bfd_vma
) -1
6770 && sh_elf_hash_entry (h
)->got_type
!= GOT_TLS_GD
6771 && sh_elf_hash_entry (h
)->got_type
!= GOT_TLS_IE
6772 && sh_elf_hash_entry (h
)->got_type
!= GOT_FUNCDESC
)
6776 Elf_Internal_Rela rel
;
6779 /* This symbol has an entry in the global offset table. Set it
6783 srelgot
= htab
->srelgot
;
6784 BFD_ASSERT (sgot
!= NULL
&& srelgot
!= NULL
);
6786 rel
.r_offset
= (sgot
->output_section
->vma
6787 + sgot
->output_offset
6788 + (h
->got
.offset
&~ (bfd_vma
) 1));
6790 /* If this is a static link, or it is a -Bsymbolic link and the
6791 symbol is defined locally or was forced to be local because
6792 of a version file, we just want to emit a RELATIVE reloc.
6793 The entry in the global offset table will already have been
6794 initialized in the relocate_section function. */
6795 if (bfd_link_pic (info
)
6796 && SYMBOL_REFERENCES_LOCAL (info
, h
))
6800 asection
*sec
= h
->root
.u
.def
.section
;
6802 = elf_section_data (sec
->output_section
)->dynindx
;
6804 rel
.r_info
= ELF32_R_INFO (dynindx
, R_SH_DIR32
);
6805 rel
.r_addend
= (h
->root
.u
.def
.value
6806 + h
->root
.u
.def
.section
->output_offset
);
6810 rel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
6811 rel
.r_addend
= (h
->root
.u
.def
.value
6812 + h
->root
.u
.def
.section
->output_section
->vma
6813 + h
->root
.u
.def
.section
->output_offset
);
6818 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ h
->got
.offset
);
6819 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_GLOB_DAT
);
6823 loc
= srelgot
->contents
;
6824 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
6825 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6828 #ifdef INCLUDE_SHMEDIA
6830 struct elf_sh_link_hash_entry
*eh
;
6832 eh
= (struct elf_sh_link_hash_entry
*) h
;
6833 if (eh
->datalabel_got
.offset
!= (bfd_vma
) -1)
6837 Elf_Internal_Rela rel
;
6840 /* This symbol has a datalabel entry in the global offset table.
6844 srelgot
= htab
->srelgot
;
6845 BFD_ASSERT (sgot
!= NULL
&& srelgot
!= NULL
);
6847 rel
.r_offset
= (sgot
->output_section
->vma
6848 + sgot
->output_offset
6849 + (eh
->datalabel_got
.offset
&~ (bfd_vma
) 1));
6851 /* If this is a static link, or it is a -Bsymbolic link and the
6852 symbol is defined locally or was forced to be local because
6853 of a version file, we just want to emit a RELATIVE reloc.
6854 The entry in the global offset table will already have been
6855 initialized in the relocate_section function. */
6856 if (bfd_link_pic (info
)
6857 && SYMBOL_REFERENCES_LOCAL (info
, h
))
6861 asection
*sec
= h
->root
.u
.def
.section
;
6863 = elf_section_data (sec
->output_section
)->dynindx
;
6865 rel
.r_info
= ELF32_R_INFO (dynindx
, R_SH_DIR32
);
6866 rel
.r_addend
= (h
->root
.u
.def
.value
6867 + h
->root
.u
.def
.section
->output_offset
);
6871 rel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
6872 rel
.r_addend
= (h
->root
.u
.def
.value
6873 + h
->root
.u
.def
.section
->output_section
->vma
6874 + h
->root
.u
.def
.section
->output_offset
);
6879 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
6880 + eh
->datalabel_got
.offset
);
6881 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_GLOB_DAT
);
6885 loc
= srelgot
->contents
;
6886 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
6887 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6895 Elf_Internal_Rela rel
;
6898 /* This symbol needs a copy reloc. Set it up. */
6900 BFD_ASSERT (h
->dynindx
!= -1
6901 && (h
->root
.type
== bfd_link_hash_defined
6902 || h
->root
.type
== bfd_link_hash_defweak
));
6904 s
= bfd_get_linker_section (htab
->root
.dynobj
, ".rela.bss");
6905 BFD_ASSERT (s
!= NULL
);
6907 rel
.r_offset
= (h
->root
.u
.def
.value
6908 + h
->root
.u
.def
.section
->output_section
->vma
6909 + h
->root
.u
.def
.section
->output_offset
);
6910 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_COPY
);
6912 loc
= s
->contents
+ s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
6913 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
6916 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks,
6917 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
6919 if (h
== htab
->root
.hdynamic
6920 || (!htab
->vxworks_p
&& h
== htab
->root
.hgot
))
6921 sym
->st_shndx
= SHN_ABS
;
6926 /* Finish up the dynamic sections. */
6929 sh_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
6931 struct elf_sh_link_hash_table
*htab
;
6935 htab
= sh_elf_hash_table (info
);
6939 sgotplt
= htab
->sgotplt
;
6940 sdyn
= bfd_get_linker_section (htab
->root
.dynobj
, ".dynamic");
6942 if (htab
->root
.dynamic_sections_created
)
6945 Elf32_External_Dyn
*dyncon
, *dynconend
;
6947 BFD_ASSERT (sgotplt
!= NULL
&& sdyn
!= NULL
);
6949 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
6950 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
6951 for (; dyncon
< dynconend
; dyncon
++)
6953 Elf_Internal_Dyn dyn
;
6955 #ifdef INCLUDE_SHMEDIA
6959 bfd_elf32_swap_dyn_in (htab
->root
.dynobj
, dyncon
, &dyn
);
6965 && elf_vxworks_finish_dynamic_entry (output_bfd
, &dyn
))
6966 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6969 #ifdef INCLUDE_SHMEDIA
6971 name
= info
->init_function
;
6975 name
= info
->fini_function
;
6977 if (dyn
.d_un
.d_val
!= 0)
6979 struct elf_link_hash_entry
*h
;
6981 h
= elf_link_hash_lookup (&htab
->root
, name
,
6982 FALSE
, FALSE
, TRUE
);
6983 if (h
!= NULL
&& (h
->other
& STO_SH5_ISA32
))
6985 dyn
.d_un
.d_val
|= 1;
6986 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6993 BFD_ASSERT (htab
->root
.hgot
!= NULL
);
6994 s
= htab
->root
.hgot
->root
.u
.def
.section
;
6995 dyn
.d_un
.d_ptr
= htab
->root
.hgot
->root
.u
.def
.value
6996 + s
->output_section
->vma
+ s
->output_offset
;
6997 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
7001 s
= htab
->srelplt
->output_section
;
7002 BFD_ASSERT (s
!= NULL
);
7003 dyn
.d_un
.d_ptr
= s
->vma
;
7004 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
7008 s
= htab
->srelplt
->output_section
;
7009 BFD_ASSERT (s
!= NULL
);
7010 dyn
.d_un
.d_val
= s
->size
;
7011 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
7015 /* My reading of the SVR4 ABI indicates that the
7016 procedure linkage table relocs (DT_JMPREL) should be
7017 included in the overall relocs (DT_RELA). This is
7018 what Solaris does. However, UnixWare can not handle
7019 that case. Therefore, we override the DT_RELASZ entry
7020 here to make it not include the JMPREL relocs. Since
7021 the linker script arranges for .rela.plt to follow all
7022 other relocation sections, we don't have to worry
7023 about changing the DT_RELA entry. */
7024 if (htab
->srelplt
!= NULL
)
7026 s
= htab
->srelplt
->output_section
;
7027 dyn
.d_un
.d_val
-= s
->size
;
7029 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
7034 /* Fill in the first entry in the procedure linkage table. */
7036 if (splt
&& splt
->size
> 0 && htab
->plt_info
->plt0_entry
)
7040 memcpy (splt
->contents
,
7041 htab
->plt_info
->plt0_entry
,
7042 htab
->plt_info
->plt0_entry_size
);
7043 for (i
= 0; i
< ARRAY_SIZE (htab
->plt_info
->plt0_got_fields
); i
++)
7044 if (htab
->plt_info
->plt0_got_fields
[i
] != MINUS_ONE
)
7045 install_plt_field (output_bfd
, FALSE
,
7046 (sgotplt
->output_section
->vma
7047 + sgotplt
->output_offset
7050 + htab
->plt_info
->plt0_got_fields
[i
]));
7052 if (htab
->vxworks_p
)
7054 /* Finalize the .rela.plt.unloaded contents. */
7055 Elf_Internal_Rela rel
;
7058 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
7059 first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */
7060 loc
= htab
->srelplt2
->contents
;
7061 rel
.r_offset
= (splt
->output_section
->vma
7062 + splt
->output_offset
7063 + htab
->plt_info
->plt0_got_fields
[2]);
7064 rel
.r_info
= ELF32_R_INFO (htab
->root
.hgot
->indx
, R_SH_DIR32
);
7066 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
7067 loc
+= sizeof (Elf32_External_Rela
);
7069 /* Fix up the remaining .rela.plt.unloaded relocations.
7070 They may have the wrong symbol index for _G_O_T_ or
7071 _P_L_T_ depending on the order in which symbols were
7073 while (loc
< htab
->srelplt2
->contents
+ htab
->srelplt2
->size
)
7075 /* The PLT entry's pointer to the .got.plt slot. */
7076 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
7077 rel
.r_info
= ELF32_R_INFO (htab
->root
.hgot
->indx
,
7079 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
7080 loc
+= sizeof (Elf32_External_Rela
);
7082 /* The .got.plt slot's pointer to .plt. */
7083 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
7084 rel
.r_info
= ELF32_R_INFO (htab
->root
.hplt
->indx
,
7086 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
7087 loc
+= sizeof (Elf32_External_Rela
);
7091 /* UnixWare sets the entsize of .plt to 4, although that doesn't
7092 really seem like the right value. */
7093 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
= 4;
7097 /* Fill in the first three entries in the global offset table. */
7098 if (sgotplt
&& sgotplt
->size
> 0 && !htab
->fdpic_p
)
7101 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
);
7103 bfd_put_32 (output_bfd
,
7104 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
7106 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 4);
7107 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 8);
7110 if (sgotplt
&& sgotplt
->size
> 0)
7111 elf_section_data (sgotplt
->output_section
)->this_hdr
.sh_entsize
= 4;
7113 /* At the very end of the .rofixup section is a pointer to the GOT. */
7114 if (htab
->fdpic_p
&& htab
->srofixup
!= NULL
)
7116 struct elf_link_hash_entry
*hgot
= htab
->root
.hgot
;
7117 bfd_vma got_value
= hgot
->root
.u
.def
.value
7118 + hgot
->root
.u
.def
.section
->output_section
->vma
7119 + hgot
->root
.u
.def
.section
->output_offset
;
7121 sh_elf_add_rofixup (output_bfd
, htab
->srofixup
, got_value
);
7123 /* Make sure we allocated and generated the same number of fixups. */
7124 BFD_ASSERT (htab
->srofixup
->reloc_count
* 4 == htab
->srofixup
->size
);
7127 if (htab
->srelfuncdesc
)
7128 BFD_ASSERT (htab
->srelfuncdesc
->reloc_count
* sizeof (Elf32_External_Rela
)
7129 == htab
->srelfuncdesc
->size
);
7132 BFD_ASSERT (htab
->srelgot
->reloc_count
* sizeof (Elf32_External_Rela
)
7133 == htab
->srelgot
->size
);
7138 static enum elf_reloc_type_class
7139 sh_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
7140 const asection
*rel_sec ATTRIBUTE_UNUSED
,
7141 const Elf_Internal_Rela
*rela
)
7143 switch ((int) ELF32_R_TYPE (rela
->r_info
))
7146 return reloc_class_relative
;
7148 return reloc_class_plt
;
7150 return reloc_class_copy
;
7152 return reloc_class_normal
;
7156 #if !defined SH_TARGET_ALREADY_DEFINED
7157 /* Support for Linux core dump NOTE sections. */
7160 elf32_shlin_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
7165 switch (note
->descsz
)
7170 case 168: /* Linux/SH */
7172 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
7175 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
7184 /* Make a ".reg/999" section. */
7185 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
7186 size
, note
->descpos
+ offset
);
7190 elf32_shlin_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
7192 switch (note
->descsz
)
7197 case 124: /* Linux/SH elf_prpsinfo */
7198 elf_tdata (abfd
)->core
->program
7199 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
7200 elf_tdata (abfd
)->core
->command
7201 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
7204 /* Note that for some reason, a spurious space is tacked
7205 onto the end of the args in some (at least one anyway)
7206 implementations, so strip it off if it exists. */
7209 char *command
= elf_tdata (abfd
)->core
->command
;
7210 int n
= strlen (command
);
7212 if (0 < n
&& command
[n
- 1] == ' ')
7213 command
[n
- 1] = '\0';
7218 #endif /* not SH_TARGET_ALREADY_DEFINED */
7221 /* Return address for Ith PLT stub in section PLT, for relocation REL
7222 or (bfd_vma) -1 if it should not be included. */
7225 sh_elf_plt_sym_val (bfd_vma i
, const asection
*plt
,
7226 const arelent
*rel ATTRIBUTE_UNUSED
)
7228 const struct elf_sh_plt_info
*plt_info
;
7230 plt_info
= get_plt_info (plt
->owner
, (plt
->owner
->flags
& DYNAMIC
) != 0);
7231 return plt
->vma
+ get_plt_offset (plt_info
, i
);
7234 /* Decide whether to attempt to turn absptr or lsda encodings in
7235 shared libraries into pcrel within the given input section. */
7238 sh_elf_use_relative_eh_frame (bfd
*input_bfd ATTRIBUTE_UNUSED
,
7239 struct bfd_link_info
*info
,
7240 asection
*eh_frame_section ATTRIBUTE_UNUSED
)
7242 struct elf_sh_link_hash_table
*htab
= sh_elf_hash_table (info
);
7244 /* We can't use PC-relative encodings in FDPIC binaries, in general. */
7251 /* Adjust the contents of an eh_frame_hdr section before they're output. */
7254 sh_elf_encode_eh_address (bfd
*abfd
,
7255 struct bfd_link_info
*info
,
7256 asection
*osec
, bfd_vma offset
,
7257 asection
*loc_sec
, bfd_vma loc_offset
,
7260 struct elf_sh_link_hash_table
*htab
= sh_elf_hash_table (info
);
7261 struct elf_link_hash_entry
*h
;
7264 return _bfd_elf_encode_eh_address (abfd
, info
, osec
, offset
, loc_sec
,
7265 loc_offset
, encoded
);
7267 h
= htab
->root
.hgot
;
7268 BFD_ASSERT (h
&& h
->root
.type
== bfd_link_hash_defined
);
7270 if (! h
|| (sh_elf_osec_to_segment (abfd
, osec
)
7271 == sh_elf_osec_to_segment (abfd
, loc_sec
->output_section
)))
7272 return _bfd_elf_encode_eh_address (abfd
, info
, osec
, offset
,
7273 loc_sec
, loc_offset
, encoded
);
7275 BFD_ASSERT (sh_elf_osec_to_segment (abfd
, osec
)
7276 == (sh_elf_osec_to_segment
7277 (abfd
, h
->root
.u
.def
.section
->output_section
)));
7279 *encoded
= osec
->vma
+ offset
7280 - (h
->root
.u
.def
.value
7281 + h
->root
.u
.def
.section
->output_section
->vma
7282 + h
->root
.u
.def
.section
->output_offset
);
7284 return DW_EH_PE_datarel
| DW_EH_PE_sdata4
;
7287 #if !defined SH_TARGET_ALREADY_DEFINED
7288 #define TARGET_BIG_SYM sh_elf32_vec
7289 #define TARGET_BIG_NAME "elf32-sh"
7290 #define TARGET_LITTLE_SYM sh_elf32_le_vec
7291 #define TARGET_LITTLE_NAME "elf32-shl"
7294 #define ELF_ARCH bfd_arch_sh
7295 #define ELF_TARGET_ID SH_ELF_DATA
7296 #define ELF_MACHINE_CODE EM_SH
7297 #ifdef __QNXTARGET__
7298 #define ELF_MAXPAGESIZE 0x1000
7300 #define ELF_MAXPAGESIZE 0x80
7303 #define elf_symbol_leading_char '_'
7305 #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
7306 #define bfd_elf32_bfd_reloc_name_lookup \
7307 sh_elf_reloc_name_lookup
7308 #define elf_info_to_howto sh_elf_info_to_howto
7309 #define bfd_elf32_bfd_relax_section sh_elf_relax_section
7310 #define elf_backend_relocate_section sh_elf_relocate_section
7311 #define bfd_elf32_bfd_get_relocated_section_contents \
7312 sh_elf_get_relocated_section_contents
7313 #define bfd_elf32_mkobject sh_elf_mkobject
7314 #define elf_backend_object_p sh_elf_object_p
7315 #define bfd_elf32_bfd_copy_private_bfd_data \
7316 sh_elf_copy_private_data
7317 #define bfd_elf32_bfd_merge_private_bfd_data \
7318 sh_elf_merge_private_data
7320 #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
7321 #define elf_backend_check_relocs sh_elf_check_relocs
7322 #define elf_backend_copy_indirect_symbol \
7323 sh_elf_copy_indirect_symbol
7324 #define elf_backend_create_dynamic_sections \
7325 sh_elf_create_dynamic_sections
7326 #define bfd_elf32_bfd_link_hash_table_create \
7327 sh_elf_link_hash_table_create
7328 #define elf_backend_adjust_dynamic_symbol \
7329 sh_elf_adjust_dynamic_symbol
7330 #define elf_backend_always_size_sections \
7331 sh_elf_always_size_sections
7332 #define elf_backend_size_dynamic_sections \
7333 sh_elf_size_dynamic_sections
7334 #define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym
7335 #define elf_backend_finish_dynamic_symbol \
7336 sh_elf_finish_dynamic_symbol
7337 #define elf_backend_finish_dynamic_sections \
7338 sh_elf_finish_dynamic_sections
7339 #define elf_backend_reloc_type_class sh_elf_reloc_type_class
7340 #define elf_backend_plt_sym_val sh_elf_plt_sym_val
7341 #define elf_backend_can_make_relative_eh_frame \
7342 sh_elf_use_relative_eh_frame
7343 #define elf_backend_can_make_lsda_relative_eh_frame \
7344 sh_elf_use_relative_eh_frame
7345 #define elf_backend_encode_eh_address \
7346 sh_elf_encode_eh_address
7348 #define elf_backend_stack_align 8
7349 #define elf_backend_can_gc_sections 1
7350 #define elf_backend_can_refcount 1
7351 #define elf_backend_want_got_plt 1
7352 #define elf_backend_plt_readonly 1
7353 #define elf_backend_want_plt_sym 0
7354 #define elf_backend_got_header_size 12
7356 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
7358 #include "elf32-target.h"
7360 /* NetBSD support. */
7361 #undef TARGET_BIG_SYM
7362 #define TARGET_BIG_SYM sh_elf32_nbsd_vec
7363 #undef TARGET_BIG_NAME
7364 #define TARGET_BIG_NAME "elf32-sh-nbsd"
7365 #undef TARGET_LITTLE_SYM
7366 #define TARGET_LITTLE_SYM sh_elf32_nbsd_le_vec
7367 #undef TARGET_LITTLE_NAME
7368 #define TARGET_LITTLE_NAME "elf32-shl-nbsd"
7369 #undef ELF_MAXPAGESIZE
7370 #define ELF_MAXPAGESIZE 0x10000
7371 #undef ELF_COMMONPAGESIZE
7372 #undef elf_symbol_leading_char
7373 #define elf_symbol_leading_char 0
7375 #define elf32_bed elf32_sh_nbsd_bed
7377 #include "elf32-target.h"
7380 /* Linux support. */
7381 #undef TARGET_BIG_SYM
7382 #define TARGET_BIG_SYM sh_elf32_linux_be_vec
7383 #undef TARGET_BIG_NAME
7384 #define TARGET_BIG_NAME "elf32-shbig-linux"
7385 #undef TARGET_LITTLE_SYM
7386 #define TARGET_LITTLE_SYM sh_elf32_linux_vec
7387 #undef TARGET_LITTLE_NAME
7388 #define TARGET_LITTLE_NAME "elf32-sh-linux"
7389 #undef ELF_COMMONPAGESIZE
7390 #define ELF_COMMONPAGESIZE 0x1000
7392 #undef elf_backend_grok_prstatus
7393 #define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
7394 #undef elf_backend_grok_psinfo
7395 #define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
7397 #define elf32_bed elf32_sh_lin_bed
7399 #include "elf32-target.h"
7402 /* FDPIC support. */
7403 #undef TARGET_BIG_SYM
7404 #define TARGET_BIG_SYM sh_elf32_fdpic_be_vec
7405 #undef TARGET_BIG_NAME
7406 #define TARGET_BIG_NAME "elf32-shbig-fdpic"
7407 #undef TARGET_LITTLE_SYM
7408 #define TARGET_LITTLE_SYM sh_elf32_fdpic_le_vec
7409 #undef TARGET_LITTLE_NAME
7410 #define TARGET_LITTLE_NAME "elf32-sh-fdpic"
7413 #define elf32_bed elf32_sh_fd_bed
7415 #include "elf32-target.h"
7417 #undef elf_backend_modify_program_headers
7419 /* VxWorks support. */
7420 #undef TARGET_BIG_SYM
7421 #define TARGET_BIG_SYM sh_elf32_vxworks_vec
7422 #undef TARGET_BIG_NAME
7423 #define TARGET_BIG_NAME "elf32-sh-vxworks"
7424 #undef TARGET_LITTLE_SYM
7425 #define TARGET_LITTLE_SYM sh_elf32_vxworks_le_vec
7426 #undef TARGET_LITTLE_NAME
7427 #define TARGET_LITTLE_NAME "elf32-shl-vxworks"
7429 #define elf32_bed elf32_sh_vxworks_bed
7431 #undef elf_backend_want_plt_sym
7432 #define elf_backend_want_plt_sym 1
7433 #undef elf_symbol_leading_char
7434 #define elf_symbol_leading_char '_'
7435 #define elf_backend_want_got_underscore 1
7436 #undef elf_backend_grok_prstatus
7437 #undef elf_backend_grok_psinfo
7438 #undef elf_backend_add_symbol_hook
7439 #define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook
7440 #undef elf_backend_link_output_symbol_hook
7441 #define elf_backend_link_output_symbol_hook \
7442 elf_vxworks_link_output_symbol_hook
7443 #undef elf_backend_emit_relocs
7444 #define elf_backend_emit_relocs elf_vxworks_emit_relocs
7445 #undef elf_backend_final_write_processing
7446 #define elf_backend_final_write_processing \
7447 elf_vxworks_final_write_processing
7448 #undef ELF_MAXPAGESIZE
7449 #define ELF_MAXPAGESIZE 0x1000
7450 #undef ELF_COMMONPAGESIZE
7452 #include "elf32-target.h"
7454 #endif /* neither INCLUDE_SHMEDIA nor SH_TARGET_ALREADY_DEFINED */