1 /* Renesas / SuperH SH specific support for 32-bit ELF
2 Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2006, 2007, 2008 Free Software Foundation, Inc.
4 Contributed by Ian Lance Taylor, Cygnus Support.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
28 #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 #define MINUS_ONE ((bfd_vma) 0 - 1)
59 #define SH_PARTIAL32 TRUE
60 #define SH_SRC_MASK32 0xffffffff
61 #define SH_ELF_RELOC sh_elf_reloc
62 static reloc_howto_type sh_elf_howto_table
[] =
64 #include "elf32-sh-relocs.h"
67 #define SH_PARTIAL32 FALSE
68 #define SH_SRC_MASK32 0
69 #define SH_ELF_RELOC bfd_elf_generic_reloc
70 static reloc_howto_type sh_vxworks_howto_table
[] =
72 #include "elf32-sh-relocs.h"
75 /* Return true if OUTPUT_BFD is a VxWorks object. */
78 vxworks_object_p (bfd
*abfd ATTRIBUTE_UNUSED
)
80 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
81 extern const bfd_target bfd_elf32_shlvxworks_vec
;
82 extern const bfd_target bfd_elf32_shvxworks_vec
;
84 return (abfd
->xvec
== &bfd_elf32_shlvxworks_vec
85 || abfd
->xvec
== &bfd_elf32_shvxworks_vec
);
91 /* Return the howto table for ABFD. */
93 static reloc_howto_type
*
94 get_howto_table (bfd
*abfd
)
96 if (vxworks_object_p (abfd
))
97 return sh_vxworks_howto_table
;
98 return sh_elf_howto_table
;
101 static bfd_reloc_status_type
102 sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED
, bfd
*input_bfd
,
103 asection
*input_section
, bfd_byte
*contents
,
104 bfd_vma addr
, asection
*symbol_section
,
105 bfd_vma start
, bfd_vma end
)
107 static bfd_vma last_addr
;
108 static asection
*last_symbol_section
;
109 bfd_byte
*start_ptr
, *ptr
, *last_ptr
;
114 /* Sanity check the address. */
115 if (addr
> bfd_get_section_limit (input_bfd
, input_section
))
116 return bfd_reloc_outofrange
;
118 /* We require the start and end relocations to be processed consecutively -
119 although we allow then to be processed forwards or backwards. */
123 last_symbol_section
= symbol_section
;
126 if (last_addr
!= addr
)
130 if (! symbol_section
|| last_symbol_section
!= symbol_section
|| end
< start
)
131 return bfd_reloc_outofrange
;
133 /* Get the symbol_section contents. */
134 if (symbol_section
!= input_section
)
136 if (elf_section_data (symbol_section
)->this_hdr
.contents
!= NULL
)
137 contents
= elf_section_data (symbol_section
)->this_hdr
.contents
;
140 if (!bfd_malloc_and_get_section (input_bfd
, symbol_section
,
143 if (contents
!= NULL
)
145 return bfd_reloc_outofrange
;
149 #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800)
150 start_ptr
= contents
+ start
;
151 for (cum_diff
= -6, ptr
= contents
+ end
; cum_diff
< 0 && ptr
> start_ptr
;)
153 for (last_ptr
= ptr
, ptr
-= 4; ptr
>= start_ptr
&& IS_PPI (ptr
);)
156 diff
= (last_ptr
- ptr
) >> 1;
157 cum_diff
+= diff
& 1;
160 /* Calculate the start / end values to load into rs / re minus four -
161 so that will cancel out the four we would otherwise have to add to
162 addr to get the value to subtract in order to get relative addressing. */
166 end
= (ptr
+ cum_diff
* 2) - contents
;
170 bfd_vma start0
= start
- 4;
172 while (start0
&& IS_PPI (contents
+ start0
))
174 start0
= start
- 2 - ((start
- start0
) & 2);
175 start
= start0
- cum_diff
- 2;
180 && elf_section_data (symbol_section
)->this_hdr
.contents
!= contents
)
183 insn
= bfd_get_16 (input_bfd
, contents
+ addr
);
185 x
= (insn
& 0x200 ? end
: start
) - addr
;
186 if (input_section
!= symbol_section
)
187 x
+= ((symbol_section
->output_section
->vma
+ symbol_section
->output_offset
)
188 - (input_section
->output_section
->vma
189 + input_section
->output_offset
));
191 if (x
< -128 || x
> 127)
192 return bfd_reloc_overflow
;
194 x
= (insn
& ~0xff) | (x
& 0xff);
195 bfd_put_16 (input_bfd
, (bfd_vma
) x
, contents
+ addr
);
200 /* This function is used for normal relocs. This used to be like the COFF
201 function, and is almost certainly incorrect for other ELF targets. */
203 static bfd_reloc_status_type
204 sh_elf_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol_in
,
205 void *data
, asection
*input_section
, bfd
*output_bfd
,
206 char **error_message ATTRIBUTE_UNUSED
)
210 enum elf_sh_reloc_type r_type
;
211 bfd_vma addr
= reloc_entry
->address
;
212 bfd_byte
*hit_data
= addr
+ (bfd_byte
*) data
;
214 r_type
= (enum elf_sh_reloc_type
) reloc_entry
->howto
->type
;
216 if (output_bfd
!= NULL
)
218 /* Partial linking--do nothing. */
219 reloc_entry
->address
+= input_section
->output_offset
;
223 /* Almost all relocs have to do with relaxing. If any work must be
224 done for them, it has been done in sh_relax_section. */
225 if (r_type
== R_SH_IND12W
&& (symbol_in
->flags
& BSF_LOCAL
) != 0)
228 if (symbol_in
!= NULL
229 && bfd_is_und_section (symbol_in
->section
))
230 return bfd_reloc_undefined
;
232 if (bfd_is_com_section (symbol_in
->section
))
235 sym_value
= (symbol_in
->value
+
236 symbol_in
->section
->output_section
->vma
+
237 symbol_in
->section
->output_offset
);
242 insn
= bfd_get_32 (abfd
, hit_data
);
243 insn
+= sym_value
+ reloc_entry
->addend
;
244 bfd_put_32 (abfd
, (bfd_vma
) insn
, hit_data
);
247 insn
= bfd_get_16 (abfd
, hit_data
);
248 sym_value
+= reloc_entry
->addend
;
249 sym_value
-= (input_section
->output_section
->vma
250 + input_section
->output_offset
253 sym_value
+= (insn
& 0xfff) << 1;
256 insn
= (insn
& 0xf000) | (sym_value
& 0xfff);
257 bfd_put_16 (abfd
, (bfd_vma
) insn
, hit_data
);
258 if (sym_value
< (bfd_vma
) -0x1000 || sym_value
>= 0x1000)
259 return bfd_reloc_overflow
;
269 /* This function is used for relocs which are only used for relaxing,
270 which the linker should otherwise ignore. */
272 static bfd_reloc_status_type
273 sh_elf_ignore_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
274 asymbol
*symbol ATTRIBUTE_UNUSED
,
275 void *data ATTRIBUTE_UNUSED
, asection
*input_section
,
277 char **error_message ATTRIBUTE_UNUSED
)
279 if (output_bfd
!= NULL
)
280 reloc_entry
->address
+= input_section
->output_offset
;
284 /* This structure is used to map BFD reloc codes to SH ELF relocs. */
288 bfd_reloc_code_real_type bfd_reloc_val
;
289 unsigned char elf_reloc_val
;
292 /* An array mapping BFD reloc codes to SH ELF relocs. */
294 static const struct elf_reloc_map sh_reloc_map
[] =
296 { BFD_RELOC_NONE
, R_SH_NONE
},
297 { BFD_RELOC_32
, R_SH_DIR32
},
298 { BFD_RELOC_16
, R_SH_DIR16
},
299 { BFD_RELOC_8
, R_SH_DIR8
},
300 { BFD_RELOC_CTOR
, R_SH_DIR32
},
301 { BFD_RELOC_32_PCREL
, R_SH_REL32
},
302 { BFD_RELOC_SH_PCDISP8BY2
, R_SH_DIR8WPN
},
303 { BFD_RELOC_SH_PCDISP12BY2
, R_SH_IND12W
},
304 { BFD_RELOC_SH_PCRELIMM8BY2
, R_SH_DIR8WPZ
},
305 { BFD_RELOC_SH_PCRELIMM8BY4
, R_SH_DIR8WPL
},
306 { BFD_RELOC_8_PCREL
, R_SH_SWITCH8
},
307 { BFD_RELOC_SH_SWITCH16
, R_SH_SWITCH16
},
308 { BFD_RELOC_SH_SWITCH32
, R_SH_SWITCH32
},
309 { BFD_RELOC_SH_USES
, R_SH_USES
},
310 { BFD_RELOC_SH_COUNT
, R_SH_COUNT
},
311 { BFD_RELOC_SH_ALIGN
, R_SH_ALIGN
},
312 { BFD_RELOC_SH_CODE
, R_SH_CODE
},
313 { BFD_RELOC_SH_DATA
, R_SH_DATA
},
314 { BFD_RELOC_SH_LABEL
, R_SH_LABEL
},
315 { BFD_RELOC_VTABLE_INHERIT
, R_SH_GNU_VTINHERIT
},
316 { BFD_RELOC_VTABLE_ENTRY
, R_SH_GNU_VTENTRY
},
317 { BFD_RELOC_SH_LOOP_START
, R_SH_LOOP_START
},
318 { BFD_RELOC_SH_LOOP_END
, R_SH_LOOP_END
},
319 { BFD_RELOC_SH_TLS_GD_32
, R_SH_TLS_GD_32
},
320 { BFD_RELOC_SH_TLS_LD_32
, R_SH_TLS_LD_32
},
321 { BFD_RELOC_SH_TLS_LDO_32
, R_SH_TLS_LDO_32
},
322 { BFD_RELOC_SH_TLS_IE_32
, R_SH_TLS_IE_32
},
323 { BFD_RELOC_SH_TLS_LE_32
, R_SH_TLS_LE_32
},
324 { BFD_RELOC_SH_TLS_DTPMOD32
, R_SH_TLS_DTPMOD32
},
325 { BFD_RELOC_SH_TLS_DTPOFF32
, R_SH_TLS_DTPOFF32
},
326 { BFD_RELOC_SH_TLS_TPOFF32
, R_SH_TLS_TPOFF32
},
327 { BFD_RELOC_32_GOT_PCREL
, R_SH_GOT32
},
328 { BFD_RELOC_32_PLT_PCREL
, R_SH_PLT32
},
329 { BFD_RELOC_SH_COPY
, R_SH_COPY
},
330 { BFD_RELOC_SH_GLOB_DAT
, R_SH_GLOB_DAT
},
331 { BFD_RELOC_SH_JMP_SLOT
, R_SH_JMP_SLOT
},
332 { BFD_RELOC_SH_RELATIVE
, R_SH_RELATIVE
},
333 { BFD_RELOC_32_GOTOFF
, R_SH_GOTOFF
},
334 { BFD_RELOC_SH_GOTPC
, R_SH_GOTPC
},
335 { BFD_RELOC_SH_GOTPLT32
, R_SH_GOTPLT32
},
336 #ifdef INCLUDE_SHMEDIA
337 { BFD_RELOC_SH_GOT_LOW16
, R_SH_GOT_LOW16
},
338 { BFD_RELOC_SH_GOT_MEDLOW16
, R_SH_GOT_MEDLOW16
},
339 { BFD_RELOC_SH_GOT_MEDHI16
, R_SH_GOT_MEDHI16
},
340 { BFD_RELOC_SH_GOT_HI16
, R_SH_GOT_HI16
},
341 { BFD_RELOC_SH_GOTPLT_LOW16
, R_SH_GOTPLT_LOW16
},
342 { BFD_RELOC_SH_GOTPLT_MEDLOW16
, R_SH_GOTPLT_MEDLOW16
},
343 { BFD_RELOC_SH_GOTPLT_MEDHI16
, R_SH_GOTPLT_MEDHI16
},
344 { BFD_RELOC_SH_GOTPLT_HI16
, R_SH_GOTPLT_HI16
},
345 { BFD_RELOC_SH_PLT_LOW16
, R_SH_PLT_LOW16
},
346 { BFD_RELOC_SH_PLT_MEDLOW16
, R_SH_PLT_MEDLOW16
},
347 { BFD_RELOC_SH_PLT_MEDHI16
, R_SH_PLT_MEDHI16
},
348 { BFD_RELOC_SH_PLT_HI16
, R_SH_PLT_HI16
},
349 { BFD_RELOC_SH_GOTOFF_LOW16
, R_SH_GOTOFF_LOW16
},
350 { BFD_RELOC_SH_GOTOFF_MEDLOW16
, R_SH_GOTOFF_MEDLOW16
},
351 { BFD_RELOC_SH_GOTOFF_MEDHI16
, R_SH_GOTOFF_MEDHI16
},
352 { BFD_RELOC_SH_GOTOFF_HI16
, R_SH_GOTOFF_HI16
},
353 { BFD_RELOC_SH_GOTPC_LOW16
, R_SH_GOTPC_LOW16
},
354 { BFD_RELOC_SH_GOTPC_MEDLOW16
, R_SH_GOTPC_MEDLOW16
},
355 { BFD_RELOC_SH_GOTPC_MEDHI16
, R_SH_GOTPC_MEDHI16
},
356 { BFD_RELOC_SH_GOTPC_HI16
, R_SH_GOTPC_HI16
},
357 { BFD_RELOC_SH_COPY64
, R_SH_COPY64
},
358 { BFD_RELOC_SH_GLOB_DAT64
, R_SH_GLOB_DAT64
},
359 { BFD_RELOC_SH_JMP_SLOT64
, R_SH_JMP_SLOT64
},
360 { BFD_RELOC_SH_RELATIVE64
, R_SH_RELATIVE64
},
361 { BFD_RELOC_SH_GOT10BY4
, R_SH_GOT10BY4
},
362 { BFD_RELOC_SH_GOT10BY8
, R_SH_GOT10BY8
},
363 { BFD_RELOC_SH_GOTPLT10BY4
, R_SH_GOTPLT10BY4
},
364 { BFD_RELOC_SH_GOTPLT10BY8
, R_SH_GOTPLT10BY8
},
365 { BFD_RELOC_SH_PT_16
, R_SH_PT_16
},
366 { BFD_RELOC_SH_SHMEDIA_CODE
, R_SH_SHMEDIA_CODE
},
367 { BFD_RELOC_SH_IMMU5
, R_SH_DIR5U
},
368 { BFD_RELOC_SH_IMMS6
, R_SH_DIR6S
},
369 { BFD_RELOC_SH_IMMU6
, R_SH_DIR6U
},
370 { BFD_RELOC_SH_IMMS10
, R_SH_DIR10S
},
371 { BFD_RELOC_SH_IMMS10BY2
, R_SH_DIR10SW
},
372 { BFD_RELOC_SH_IMMS10BY4
, R_SH_DIR10SL
},
373 { BFD_RELOC_SH_IMMS10BY8
, R_SH_DIR10SQ
},
374 { BFD_RELOC_SH_IMMS16
, R_SH_IMMS16
},
375 { BFD_RELOC_SH_IMMU16
, R_SH_IMMU16
},
376 { BFD_RELOC_SH_IMM_LOW16
, R_SH_IMM_LOW16
},
377 { BFD_RELOC_SH_IMM_LOW16_PCREL
, R_SH_IMM_LOW16_PCREL
},
378 { BFD_RELOC_SH_IMM_MEDLOW16
, R_SH_IMM_MEDLOW16
},
379 { BFD_RELOC_SH_IMM_MEDLOW16_PCREL
, R_SH_IMM_MEDLOW16_PCREL
},
380 { BFD_RELOC_SH_IMM_MEDHI16
, R_SH_IMM_MEDHI16
},
381 { BFD_RELOC_SH_IMM_MEDHI16_PCREL
, R_SH_IMM_MEDHI16_PCREL
},
382 { BFD_RELOC_SH_IMM_HI16
, R_SH_IMM_HI16
},
383 { BFD_RELOC_SH_IMM_HI16_PCREL
, R_SH_IMM_HI16_PCREL
},
384 { BFD_RELOC_64
, R_SH_64
},
385 { BFD_RELOC_64_PCREL
, R_SH_64_PCREL
},
386 #endif /* not INCLUDE_SHMEDIA */
389 /* Given a BFD reloc code, return the howto structure for the
390 corresponding SH ELF reloc. */
392 static reloc_howto_type
*
393 sh_elf_reloc_type_lookup (bfd
*abfd
, bfd_reloc_code_real_type code
)
397 for (i
= 0; i
< sizeof (sh_reloc_map
) / sizeof (struct elf_reloc_map
); i
++)
399 if (sh_reloc_map
[i
].bfd_reloc_val
== code
)
400 return get_howto_table (abfd
) + (int) sh_reloc_map
[i
].elf_reloc_val
;
406 static reloc_howto_type
*
407 sh_elf_reloc_name_lookup (bfd
*abfd
, const char *r_name
)
411 if (vxworks_object_p (abfd
))
414 i
< (sizeof (sh_vxworks_howto_table
)
415 / sizeof (sh_vxworks_howto_table
[0]));
417 if (sh_vxworks_howto_table
[i
].name
!= NULL
418 && strcasecmp (sh_vxworks_howto_table
[i
].name
, r_name
) == 0)
419 return &sh_vxworks_howto_table
[i
];
424 i
< (sizeof (sh_elf_howto_table
)
425 / sizeof (sh_elf_howto_table
[0]));
427 if (sh_elf_howto_table
[i
].name
!= NULL
428 && strcasecmp (sh_elf_howto_table
[i
].name
, r_name
) == 0)
429 return &sh_elf_howto_table
[i
];
435 /* Given an ELF reloc, fill in the howto field of a relent. */
438 sh_elf_info_to_howto (bfd
*abfd
, arelent
*cache_ptr
, Elf_Internal_Rela
*dst
)
442 r
= ELF32_R_TYPE (dst
->r_info
);
444 BFD_ASSERT (r
< (unsigned int) R_SH_max
);
445 BFD_ASSERT (r
< R_SH_FIRST_INVALID_RELOC
|| r
> R_SH_LAST_INVALID_RELOC
);
446 BFD_ASSERT (r
< R_SH_FIRST_INVALID_RELOC_2
|| r
> R_SH_LAST_INVALID_RELOC_2
);
447 BFD_ASSERT (r
< R_SH_FIRST_INVALID_RELOC_3
|| r
> R_SH_LAST_INVALID_RELOC_3
);
448 BFD_ASSERT (r
< R_SH_FIRST_INVALID_RELOC_4
|| r
> R_SH_LAST_INVALID_RELOC_4
);
449 BFD_ASSERT (r
< R_SH_FIRST_INVALID_RELOC_5
|| r
> R_SH_LAST_INVALID_RELOC_5
);
451 cache_ptr
->howto
= get_howto_table (abfd
) + r
;
454 /* This function handles relaxing for SH ELF. See the corresponding
455 function in coff-sh.c for a description of what this does. FIXME:
456 There is a lot of duplication here between this code and the COFF
457 specific code. The format of relocs and symbols is wound deeply
458 into this code, but it would still be better if the duplication
459 could be eliminated somehow. Note in particular that although both
460 functions use symbols like R_SH_CODE, those symbols have different
461 values; in coff-sh.c they come from include/coff/sh.h, whereas here
462 they come from enum elf_sh_reloc_type in include/elf/sh.h. */
465 sh_elf_relax_section (bfd
*abfd
, asection
*sec
,
466 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
468 Elf_Internal_Shdr
*symtab_hdr
;
469 Elf_Internal_Rela
*internal_relocs
;
470 bfd_boolean have_code
;
471 Elf_Internal_Rela
*irel
, *irelend
;
472 bfd_byte
*contents
= NULL
;
473 Elf_Internal_Sym
*isymbuf
= NULL
;
477 if (link_info
->relocatable
478 || (sec
->flags
& SEC_RELOC
) == 0
479 || sec
->reloc_count
== 0)
482 #ifdef INCLUDE_SHMEDIA
483 if (elf_section_data (sec
)->this_hdr
.sh_flags
484 & (SHF_SH5_ISA32
| SHF_SH5_ISA32_MIXED
))
490 symtab_hdr
= &elf_symtab_hdr (abfd
);
492 internal_relocs
= (_bfd_elf_link_read_relocs
493 (abfd
, sec
, NULL
, (Elf_Internal_Rela
*) NULL
,
494 link_info
->keep_memory
));
495 if (internal_relocs
== NULL
)
500 irelend
= internal_relocs
+ sec
->reloc_count
;
501 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
503 bfd_vma laddr
, paddr
, symval
;
505 Elf_Internal_Rela
*irelfn
, *irelscan
, *irelcount
;
508 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_CODE
)
511 if (ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_USES
)
514 /* Get the section contents. */
515 if (contents
== NULL
)
517 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
518 contents
= elf_section_data (sec
)->this_hdr
.contents
;
521 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
526 /* The r_addend field of the R_SH_USES reloc will point us to
527 the register load. The 4 is because the r_addend field is
528 computed as though it were a jump offset, which are based
529 from 4 bytes after the jump instruction. */
530 laddr
= irel
->r_offset
+ 4 + irel
->r_addend
;
531 if (laddr
>= sec
->size
)
533 (*_bfd_error_handler
) (_("%B: 0x%lx: warning: bad R_SH_USES offset"),
535 (unsigned long) irel
->r_offset
);
538 insn
= bfd_get_16 (abfd
, contents
+ laddr
);
540 /* If the instruction is not mov.l NN,rN, we don't know what to
542 if ((insn
& 0xf000) != 0xd000)
544 ((*_bfd_error_handler
)
545 (_("%B: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"),
546 abfd
, (unsigned long) irel
->r_offset
, insn
));
550 /* Get the address from which the register is being loaded. The
551 displacement in the mov.l instruction is quadrupled. It is a
552 displacement from four bytes after the movl instruction, but,
553 before adding in the PC address, two least significant bits
554 of the PC are cleared. We assume that the section is aligned
555 on a four byte boundary. */
558 paddr
+= (laddr
+ 4) &~ (bfd_vma
) 3;
559 if (paddr
>= sec
->size
)
561 ((*_bfd_error_handler
)
562 (_("%B: 0x%lx: warning: bad R_SH_USES load offset"),
563 abfd
, (unsigned long) irel
->r_offset
));
567 /* Get the reloc for the address from which the register is
568 being loaded. This reloc will tell us which function is
569 actually being called. */
570 for (irelfn
= internal_relocs
; irelfn
< irelend
; irelfn
++)
571 if (irelfn
->r_offset
== paddr
572 && ELF32_R_TYPE (irelfn
->r_info
) == (int) R_SH_DIR32
)
574 if (irelfn
>= irelend
)
576 ((*_bfd_error_handler
)
577 (_("%B: 0x%lx: warning: could not find expected reloc"),
578 abfd
, (unsigned long) paddr
));
582 /* Read this BFD's symbols if we haven't done so already. */
583 if (isymbuf
== NULL
&& symtab_hdr
->sh_info
!= 0)
585 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
587 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
588 symtab_hdr
->sh_info
, 0,
594 /* Get the value of the symbol referred to by the reloc. */
595 if (ELF32_R_SYM (irelfn
->r_info
) < symtab_hdr
->sh_info
)
597 /* A local symbol. */
598 Elf_Internal_Sym
*isym
;
600 isym
= isymbuf
+ ELF32_R_SYM (irelfn
->r_info
);
602 != (unsigned int) _bfd_elf_section_from_bfd_section (abfd
, sec
))
604 ((*_bfd_error_handler
)
605 (_("%B: 0x%lx: warning: symbol in unexpected section"),
606 abfd
, (unsigned long) paddr
));
610 symval
= (isym
->st_value
611 + sec
->output_section
->vma
612 + sec
->output_offset
);
617 struct elf_link_hash_entry
*h
;
619 indx
= ELF32_R_SYM (irelfn
->r_info
) - symtab_hdr
->sh_info
;
620 h
= elf_sym_hashes (abfd
)[indx
];
621 BFD_ASSERT (h
!= NULL
);
622 if (h
->root
.type
!= bfd_link_hash_defined
623 && h
->root
.type
!= bfd_link_hash_defweak
)
625 /* This appears to be a reference to an undefined
626 symbol. Just ignore it--it will be caught by the
627 regular reloc processing. */
631 symval
= (h
->root
.u
.def
.value
632 + h
->root
.u
.def
.section
->output_section
->vma
633 + h
->root
.u
.def
.section
->output_offset
);
636 if (get_howto_table (abfd
)[R_SH_DIR32
].partial_inplace
)
637 symval
+= bfd_get_32 (abfd
, contents
+ paddr
);
639 symval
+= irelfn
->r_addend
;
641 /* See if this function call can be shortened. */
644 + sec
->output_section
->vma
647 /* A branch to an address beyond ours might be increased by an
648 .align that doesn't move when bytes behind us are deleted.
649 So, we add some slop in this calculation to allow for
651 if (foff
< -0x1000 || foff
>= 0x1000 - 8)
653 /* After all that work, we can't shorten this function call. */
657 /* Shorten the function call. */
659 /* For simplicity of coding, we are going to modify the section
660 contents, the section relocs, and the BFD symbol table. We
661 must tell the rest of the code not to free up this
662 information. It would be possible to instead create a table
663 of changes which have to be made, as is done in coff-mips.c;
664 that would be more work, but would require less memory when
665 the linker is run. */
667 elf_section_data (sec
)->relocs
= internal_relocs
;
668 elf_section_data (sec
)->this_hdr
.contents
= contents
;
669 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
671 /* Replace the jsr with a bsr. */
673 /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and
674 replace the jsr with a bsr. */
675 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_SH_IND12W
);
676 /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info)
677 here, but that only checks if the symbol is an external symbol,
678 not if the symbol is in a different section. Besides, we need
679 a consistent meaning for the relocation, so we just assume here that
680 the value of the symbol is not available. */
682 /* We can't fully resolve this yet, because the external
683 symbol value may be changed by future relaxing. We let
684 the final link phase handle it. */
685 bfd_put_16 (abfd
, (bfd_vma
) 0xb000, contents
+ irel
->r_offset
);
689 /* When we calculated the symbol "value" we had an offset in the
690 DIR32's word in memory (we read and add it above). However,
691 the jsr we create does NOT have this offset encoded, so we
692 have to add it to the addend to preserve it. */
693 irel
->r_addend
+= bfd_get_32 (abfd
, contents
+ paddr
);
695 /* See if there is another R_SH_USES reloc referring to the same
697 for (irelscan
= internal_relocs
; irelscan
< irelend
; irelscan
++)
698 if (ELF32_R_TYPE (irelscan
->r_info
) == (int) R_SH_USES
699 && laddr
== irelscan
->r_offset
+ 4 + irelscan
->r_addend
)
701 if (irelscan
< irelend
)
703 /* Some other function call depends upon this register load,
704 and we have not yet converted that function call.
705 Indeed, we may never be able to convert it. There is
706 nothing else we can do at this point. */
710 /* Look for a R_SH_COUNT reloc on the location where the
711 function address is stored. Do this before deleting any
712 bytes, to avoid confusion about the address. */
713 for (irelcount
= internal_relocs
; irelcount
< irelend
; irelcount
++)
714 if (irelcount
->r_offset
== paddr
715 && ELF32_R_TYPE (irelcount
->r_info
) == (int) R_SH_COUNT
)
718 /* Delete the register load. */
719 if (! sh_elf_relax_delete_bytes (abfd
, sec
, laddr
, 2))
722 /* That will change things, so, just in case it permits some
723 other function call to come within range, we should relax
724 again. Note that this is not required, and it may be slow. */
727 /* Now check whether we got a COUNT reloc. */
728 if (irelcount
>= irelend
)
730 ((*_bfd_error_handler
)
731 (_("%B: 0x%lx: warning: could not find expected COUNT reloc"),
732 abfd
, (unsigned long) paddr
));
736 /* The number of uses is stored in the r_addend field. We've
738 if (irelcount
->r_addend
== 0)
740 ((*_bfd_error_handler
) (_("%B: 0x%lx: warning: bad count"),
742 (unsigned long) paddr
));
746 --irelcount
->r_addend
;
748 /* If there are no more uses, we can delete the address. Reload
749 the address from irelfn, in case it was changed by the
750 previous call to sh_elf_relax_delete_bytes. */
751 if (irelcount
->r_addend
== 0)
753 if (! sh_elf_relax_delete_bytes (abfd
, sec
, irelfn
->r_offset
, 4))
757 /* We've done all we can with that function call. */
760 /* Look for load and store instructions that we can align on four
762 if ((elf_elfheader (abfd
)->e_flags
& EF_SH_MACH_MASK
) != EF_SH4
767 /* Get the section contents. */
768 if (contents
== NULL
)
770 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
771 contents
= elf_section_data (sec
)->this_hdr
.contents
;
774 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
779 if (! sh_elf_align_loads (abfd
, sec
, internal_relocs
, contents
,
785 elf_section_data (sec
)->relocs
= internal_relocs
;
786 elf_section_data (sec
)->this_hdr
.contents
= contents
;
787 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
792 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
794 if (! link_info
->keep_memory
)
798 /* Cache the symbols for elf_link_input_bfd. */
799 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
804 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
806 if (! link_info
->keep_memory
)
810 /* Cache the section contents for elf_link_input_bfd. */
811 elf_section_data (sec
)->this_hdr
.contents
= contents
;
815 if (internal_relocs
!= NULL
816 && elf_section_data (sec
)->relocs
!= internal_relocs
)
817 free (internal_relocs
);
823 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
826 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
828 if (internal_relocs
!= NULL
829 && elf_section_data (sec
)->relocs
!= internal_relocs
)
830 free (internal_relocs
);
835 /* Delete some bytes from a section while relaxing. FIXME: There is a
836 lot of duplication between this function and sh_relax_delete_bytes
840 sh_elf_relax_delete_bytes (bfd
*abfd
, asection
*sec
, bfd_vma addr
,
843 Elf_Internal_Shdr
*symtab_hdr
;
844 unsigned int sec_shndx
;
846 Elf_Internal_Rela
*irel
, *irelend
;
847 Elf_Internal_Rela
*irelalign
;
849 Elf_Internal_Sym
*isymbuf
, *isym
, *isymend
;
850 struct elf_link_hash_entry
**sym_hashes
;
851 struct elf_link_hash_entry
**end_hashes
;
852 unsigned int symcount
;
855 symtab_hdr
= &elf_symtab_hdr (abfd
);
856 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
858 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
860 contents
= elf_section_data (sec
)->this_hdr
.contents
;
862 /* The deletion must stop at the next ALIGN reloc for an aligment
863 power larger than the number of bytes we are deleting. */
868 irel
= elf_section_data (sec
)->relocs
;
869 irelend
= irel
+ sec
->reloc_count
;
870 for (; irel
< irelend
; irel
++)
872 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_ALIGN
873 && irel
->r_offset
> addr
874 && count
< (1 << irel
->r_addend
))
877 toaddr
= irel
->r_offset
;
882 /* Actually delete the bytes. */
883 memmove (contents
+ addr
, contents
+ addr
+ count
,
884 (size_t) (toaddr
- addr
- count
));
885 if (irelalign
== NULL
)
891 #define NOP_OPCODE (0x0009)
893 BFD_ASSERT ((count
& 1) == 0);
894 for (i
= 0; i
< count
; i
+= 2)
895 bfd_put_16 (abfd
, (bfd_vma
) NOP_OPCODE
, contents
+ toaddr
- count
+ i
);
898 /* Adjust all the relocs. */
899 for (irel
= elf_section_data (sec
)->relocs
; irel
< irelend
; irel
++)
901 bfd_vma nraddr
, stop
;
904 int off
, adjust
, oinsn
;
905 bfd_signed_vma voff
= 0;
906 bfd_boolean overflow
;
908 /* Get the new reloc address. */
909 nraddr
= irel
->r_offset
;
910 if ((irel
->r_offset
> addr
911 && irel
->r_offset
< toaddr
)
912 || (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_ALIGN
913 && irel
->r_offset
== toaddr
))
916 /* See if this reloc was for the bytes we have deleted, in which
917 case we no longer care about it. Don't delete relocs which
918 represent addresses, though. */
919 if (irel
->r_offset
>= addr
920 && irel
->r_offset
< addr
+ count
921 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_ALIGN
922 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_CODE
923 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_DATA
924 && ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_LABEL
)
925 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
928 /* If this is a PC relative reloc, see if the range it covers
929 includes the bytes we have deleted. */
930 switch ((enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
))
939 start
= irel
->r_offset
;
940 insn
= bfd_get_16 (abfd
, contents
+ nraddr
);
944 switch ((enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
))
951 /* If this reloc is against a symbol defined in this
952 section, and the symbol will not be adjusted below, we
953 must check the addend to see it will put the value in
954 range to be adjusted, and hence must be changed. */
955 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
957 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
958 if (isym
->st_shndx
== sec_shndx
959 && (isym
->st_value
<= addr
960 || isym
->st_value
>= toaddr
))
964 if (get_howto_table (abfd
)[R_SH_DIR32
].partial_inplace
)
966 val
= bfd_get_32 (abfd
, contents
+ nraddr
);
967 val
+= isym
->st_value
;
968 if (val
> addr
&& val
< toaddr
)
969 bfd_put_32 (abfd
, val
- count
, contents
+ nraddr
);
973 val
= isym
->st_value
+ irel
->r_addend
;
974 if (val
> addr
&& val
< toaddr
)
975 irel
->r_addend
-= count
;
986 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ 4 + off
* 2);
993 /* This has been made by previous relaxation. Since the
994 relocation will be against an external symbol, the
995 final relocation will just do the right thing. */
1002 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ 4 + off
* 2);
1004 /* The addend will be against the section symbol, thus
1005 for adjusting the addend, the relevant start is the
1006 start of the section.
1007 N.B. If we want to abandon in-place changes here and
1008 test directly using symbol + addend, we have to take into
1009 account that the addend has already been adjusted by -4. */
1010 if (stop
> addr
&& stop
< toaddr
)
1011 irel
->r_addend
-= count
;
1017 stop
= start
+ 4 + off
* 2;
1022 stop
= (start
& ~(bfd_vma
) 3) + 4 + off
* 4;
1028 /* These relocs types represent
1030 The r_addend field holds the difference between the reloc
1031 address and L1. That is the start of the reloc, and
1032 adding in the contents gives us the top. We must adjust
1033 both the r_offset field and the section contents.
1034 N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset,
1035 and the elf bfd r_offset is called r_vaddr. */
1037 stop
= irel
->r_offset
;
1038 start
= (bfd_vma
) ((bfd_signed_vma
) stop
- (long) irel
->r_addend
);
1042 && (stop
<= addr
|| stop
>= toaddr
))
1043 irel
->r_addend
+= count
;
1044 else if (stop
> addr
1046 && (start
<= addr
|| start
>= toaddr
))
1047 irel
->r_addend
-= count
;
1049 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_SWITCH16
)
1050 voff
= bfd_get_signed_16 (abfd
, contents
+ nraddr
);
1051 else if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_SWITCH8
)
1052 voff
= bfd_get_8 (abfd
, contents
+ nraddr
);
1054 voff
= bfd_get_signed_32 (abfd
, contents
+ nraddr
);
1055 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ voff
);
1060 start
= irel
->r_offset
;
1061 stop
= (bfd_vma
) ((bfd_signed_vma
) start
1062 + (long) irel
->r_addend
1069 && (stop
<= addr
|| stop
>= toaddr
))
1071 else if (stop
> addr
1073 && (start
<= addr
|| start
>= toaddr
))
1082 switch ((enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
))
1091 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1093 bfd_put_16 (abfd
, (bfd_vma
) insn
, contents
+ nraddr
);
1098 if ((oinsn
& 0xf000) != (insn
& 0xf000))
1100 bfd_put_16 (abfd
, (bfd_vma
) insn
, contents
+ nraddr
);
1104 BFD_ASSERT (adjust
== count
|| count
>= 4);
1109 if ((irel
->r_offset
& 3) == 0)
1112 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1114 bfd_put_16 (abfd
, (bfd_vma
) insn
, contents
+ nraddr
);
1119 if (voff
< 0 || voff
>= 0xff)
1121 bfd_put_8 (abfd
, voff
, contents
+ nraddr
);
1126 if (voff
< - 0x8000 || voff
>= 0x8000)
1128 bfd_put_signed_16 (abfd
, (bfd_vma
) voff
, contents
+ nraddr
);
1133 bfd_put_signed_32 (abfd
, (bfd_vma
) voff
, contents
+ nraddr
);
1137 irel
->r_addend
+= adjust
;
1143 ((*_bfd_error_handler
)
1144 (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
1145 abfd
, (unsigned long) irel
->r_offset
));
1146 bfd_set_error (bfd_error_bad_value
);
1151 irel
->r_offset
= nraddr
;
1154 /* Look through all the other sections. If there contain any IMM32
1155 relocs against internal symbols which we are not going to adjust
1156 below, we may need to adjust the addends. */
1157 for (o
= abfd
->sections
; o
!= NULL
; o
= o
->next
)
1159 Elf_Internal_Rela
*internal_relocs
;
1160 Elf_Internal_Rela
*irelscan
, *irelscanend
;
1161 bfd_byte
*ocontents
;
1164 || (o
->flags
& SEC_RELOC
) == 0
1165 || o
->reloc_count
== 0)
1168 /* We always cache the relocs. Perhaps, if info->keep_memory is
1169 FALSE, we should free them, if we are permitted to, when we
1170 leave sh_coff_relax_section. */
1171 internal_relocs
= (_bfd_elf_link_read_relocs
1172 (abfd
, o
, NULL
, (Elf_Internal_Rela
*) NULL
, TRUE
));
1173 if (internal_relocs
== NULL
)
1177 irelscanend
= internal_relocs
+ o
->reloc_count
;
1178 for (irelscan
= internal_relocs
; irelscan
< irelscanend
; irelscan
++)
1180 /* Dwarf line numbers use R_SH_SWITCH32 relocs. */
1181 if (ELF32_R_TYPE (irelscan
->r_info
) == (int) R_SH_SWITCH32
)
1183 bfd_vma start
, stop
;
1184 bfd_signed_vma voff
;
1186 if (ocontents
== NULL
)
1188 if (elf_section_data (o
)->this_hdr
.contents
!= NULL
)
1189 ocontents
= elf_section_data (o
)->this_hdr
.contents
;
1192 /* We always cache the section contents.
1193 Perhaps, if info->keep_memory is FALSE, we
1194 should free them, if we are permitted to,
1195 when we leave sh_coff_relax_section. */
1196 if (!bfd_malloc_and_get_section (abfd
, o
, &ocontents
))
1198 if (ocontents
!= NULL
)
1203 elf_section_data (o
)->this_hdr
.contents
= ocontents
;
1207 stop
= irelscan
->r_offset
;
1209 = (bfd_vma
) ((bfd_signed_vma
) stop
- (long) irelscan
->r_addend
);
1211 /* STOP is in a different section, so it won't change. */
1212 if (start
> addr
&& start
< toaddr
)
1213 irelscan
->r_addend
+= count
;
1215 voff
= bfd_get_signed_32 (abfd
, ocontents
+ irelscan
->r_offset
);
1216 stop
= (bfd_vma
) ((bfd_signed_vma
) start
+ voff
);
1220 && (stop
<= addr
|| stop
>= toaddr
))
1221 bfd_put_signed_32 (abfd
, (bfd_vma
) voff
+ count
,
1222 ocontents
+ irelscan
->r_offset
);
1223 else if (stop
> addr
1225 && (start
<= addr
|| start
>= toaddr
))
1226 bfd_put_signed_32 (abfd
, (bfd_vma
) voff
- count
,
1227 ocontents
+ irelscan
->r_offset
);
1230 if (ELF32_R_TYPE (irelscan
->r_info
) != (int) R_SH_DIR32
)
1233 if (ELF32_R_SYM (irelscan
->r_info
) >= symtab_hdr
->sh_info
)
1237 isym
= isymbuf
+ ELF32_R_SYM (irelscan
->r_info
);
1238 if (isym
->st_shndx
== sec_shndx
1239 && (isym
->st_value
<= addr
1240 || isym
->st_value
>= toaddr
))
1244 if (ocontents
== NULL
)
1246 if (elf_section_data (o
)->this_hdr
.contents
!= NULL
)
1247 ocontents
= elf_section_data (o
)->this_hdr
.contents
;
1250 /* We always cache the section contents.
1251 Perhaps, if info->keep_memory is FALSE, we
1252 should free them, if we are permitted to,
1253 when we leave sh_coff_relax_section. */
1254 if (!bfd_malloc_and_get_section (abfd
, o
, &ocontents
))
1256 if (ocontents
!= NULL
)
1261 elf_section_data (o
)->this_hdr
.contents
= ocontents
;
1265 val
= bfd_get_32 (abfd
, ocontents
+ irelscan
->r_offset
);
1266 val
+= isym
->st_value
;
1267 if (val
> addr
&& val
< toaddr
)
1268 bfd_put_32 (abfd
, val
- count
,
1269 ocontents
+ irelscan
->r_offset
);
1274 /* Adjust the local symbols defined in this section. */
1275 isymend
= isymbuf
+ symtab_hdr
->sh_info
;
1276 for (isym
= isymbuf
; isym
< isymend
; isym
++)
1278 if (isym
->st_shndx
== sec_shndx
1279 && isym
->st_value
> addr
1280 && isym
->st_value
< toaddr
)
1281 isym
->st_value
-= count
;
1284 /* Now adjust the global symbols defined in this section. */
1285 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
1286 - symtab_hdr
->sh_info
);
1287 sym_hashes
= elf_sym_hashes (abfd
);
1288 end_hashes
= sym_hashes
+ symcount
;
1289 for (; sym_hashes
< end_hashes
; sym_hashes
++)
1291 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
1292 if ((sym_hash
->root
.type
== bfd_link_hash_defined
1293 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
1294 && sym_hash
->root
.u
.def
.section
== sec
1295 && sym_hash
->root
.u
.def
.value
> addr
1296 && sym_hash
->root
.u
.def
.value
< toaddr
)
1298 sym_hash
->root
.u
.def
.value
-= count
;
1302 /* See if we can move the ALIGN reloc forward. We have adjusted
1303 r_offset for it already. */
1304 if (irelalign
!= NULL
)
1306 bfd_vma alignto
, alignaddr
;
1308 alignto
= BFD_ALIGN (toaddr
, 1 << irelalign
->r_addend
);
1309 alignaddr
= BFD_ALIGN (irelalign
->r_offset
,
1310 1 << irelalign
->r_addend
);
1311 if (alignto
!= alignaddr
)
1313 /* Tail recursion. */
1314 return sh_elf_relax_delete_bytes (abfd
, sec
, alignaddr
,
1315 (int) (alignto
- alignaddr
));
1322 /* Look for loads and stores which we can align to four byte
1323 boundaries. This is like sh_align_loads in coff-sh.c. */
1326 sh_elf_align_loads (bfd
*abfd ATTRIBUTE_UNUSED
, asection
*sec
,
1327 Elf_Internal_Rela
*internal_relocs
,
1328 bfd_byte
*contents ATTRIBUTE_UNUSED
,
1329 bfd_boolean
*pswapped
)
1331 Elf_Internal_Rela
*irel
, *irelend
;
1332 bfd_vma
*labels
= NULL
;
1333 bfd_vma
*label
, *label_end
;
1338 irelend
= internal_relocs
+ sec
->reloc_count
;
1340 /* Get all the addresses with labels on them. */
1341 amt
= sec
->reloc_count
;
1342 amt
*= sizeof (bfd_vma
);
1343 labels
= (bfd_vma
*) bfd_malloc (amt
);
1347 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1349 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_LABEL
)
1351 *label_end
= irel
->r_offset
;
1356 /* Note that the assembler currently always outputs relocs in
1357 address order. If that ever changes, this code will need to sort
1358 the label values and the relocs. */
1362 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1364 bfd_vma start
, stop
;
1366 if (ELF32_R_TYPE (irel
->r_info
) != (int) R_SH_CODE
)
1369 start
= irel
->r_offset
;
1371 for (irel
++; irel
< irelend
; irel
++)
1372 if (ELF32_R_TYPE (irel
->r_info
) == (int) R_SH_DATA
)
1375 stop
= irel
->r_offset
;
1379 if (! _bfd_sh_align_load_span (abfd
, sec
, contents
, sh_elf_swap_insns
,
1380 internal_relocs
, &label
,
1381 label_end
, start
, stop
, pswapped
))
1396 /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */
1399 sh_elf_swap_insns (bfd
*abfd
, asection
*sec
, void *relocs
,
1400 bfd_byte
*contents
, bfd_vma addr
)
1402 Elf_Internal_Rela
*internal_relocs
= (Elf_Internal_Rela
*) relocs
;
1403 unsigned short i1
, i2
;
1404 Elf_Internal_Rela
*irel
, *irelend
;
1406 /* Swap the instructions themselves. */
1407 i1
= bfd_get_16 (abfd
, contents
+ addr
);
1408 i2
= bfd_get_16 (abfd
, contents
+ addr
+ 2);
1409 bfd_put_16 (abfd
, (bfd_vma
) i2
, contents
+ addr
);
1410 bfd_put_16 (abfd
, (bfd_vma
) i1
, contents
+ addr
+ 2);
1412 /* Adjust all reloc addresses. */
1413 irelend
= internal_relocs
+ sec
->reloc_count
;
1414 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
1416 enum elf_sh_reloc_type type
;
1419 /* There are a few special types of relocs that we don't want to
1420 adjust. These relocs do not apply to the instruction itself,
1421 but are only associated with the address. */
1422 type
= (enum elf_sh_reloc_type
) ELF32_R_TYPE (irel
->r_info
);
1423 if (type
== R_SH_ALIGN
1424 || type
== R_SH_CODE
1425 || type
== R_SH_DATA
1426 || type
== R_SH_LABEL
)
1429 /* If an R_SH_USES reloc points to one of the addresses being
1430 swapped, we must adjust it. It would be incorrect to do this
1431 for a jump, though, since we want to execute both
1432 instructions after the jump. (We have avoided swapping
1433 around a label, so the jump will not wind up executing an
1434 instruction it shouldn't). */
1435 if (type
== R_SH_USES
)
1439 off
= irel
->r_offset
+ 4 + irel
->r_addend
;
1441 irel
->r_offset
+= 2;
1442 else if (off
== addr
+ 2)
1443 irel
->r_offset
-= 2;
1446 if (irel
->r_offset
== addr
)
1448 irel
->r_offset
+= 2;
1451 else if (irel
->r_offset
== addr
+ 2)
1453 irel
->r_offset
-= 2;
1462 unsigned short insn
, oinsn
;
1463 bfd_boolean overflow
;
1465 loc
= contents
+ irel
->r_offset
;
1474 insn
= bfd_get_16 (abfd
, loc
);
1477 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1479 bfd_put_16 (abfd
, (bfd_vma
) insn
, loc
);
1483 insn
= bfd_get_16 (abfd
, loc
);
1486 if ((oinsn
& 0xf000) != (insn
& 0xf000))
1488 bfd_put_16 (abfd
, (bfd_vma
) insn
, loc
);
1492 /* This reloc ignores the least significant 3 bits of
1493 the program counter before adding in the offset.
1494 This means that if ADDR is at an even address, the
1495 swap will not affect the offset. If ADDR is an at an
1496 odd address, then the instruction will be crossing a
1497 four byte boundary, and must be adjusted. */
1498 if ((addr
& 3) != 0)
1500 insn
= bfd_get_16 (abfd
, loc
);
1503 if ((oinsn
& 0xff00) != (insn
& 0xff00))
1505 bfd_put_16 (abfd
, (bfd_vma
) insn
, loc
);
1513 ((*_bfd_error_handler
)
1514 (_("%B: 0x%lx: fatal: reloc overflow while relaxing"),
1515 abfd
, (unsigned long) irel
->r_offset
));
1516 bfd_set_error (bfd_error_bad_value
);
1524 #endif /* defined SH64_ELF */
1526 /* Describes one of the various PLT styles. */
1528 struct elf_sh_plt_info
1530 /* The template for the first PLT entry, or NULL if there is no special
1532 const bfd_byte
*plt0_entry
;
1534 /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */
1535 bfd_vma plt0_entry_size
;
1537 /* Index I is the offset into PLT0_ENTRY of a pointer to
1538 _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE
1539 if there is no such pointer. */
1540 bfd_vma plt0_got_fields
[3];
1542 /* The template for a symbol's PLT entry. */
1543 const bfd_byte
*symbol_entry
;
1545 /* The size of SYMBOL_ENTRY in bytes. */
1546 bfd_vma symbol_entry_size
;
1548 /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used
1549 on all targets. The comments by each member indicate the value
1550 that the field must hold. */
1552 bfd_vma got_entry
; /* the address of the symbol's .got.plt entry */
1553 bfd_vma plt
; /* .plt (or a branch to .plt on VxWorks) */
1554 bfd_vma reloc_offset
; /* the offset of the symbol's JMP_SLOT reloc */
1557 /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */
1558 bfd_vma symbol_resolve_offset
;
1561 #ifdef INCLUDE_SHMEDIA
1563 /* The size in bytes of an entry in the procedure linkage table. */
1565 #define ELF_PLT_ENTRY_SIZE 64
1567 /* First entry in an absolute procedure linkage table look like this. */
1569 static const bfd_byte elf_sh_plt0_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1571 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 16, r17 */
1572 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */
1573 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
1574 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1575 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
1576 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1577 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1578 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1579 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1580 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1581 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1582 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1583 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1584 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1585 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1586 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1589 static const bfd_byte elf_sh_plt0_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1591 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */
1592 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */
1593 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
1594 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1595 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
1596 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1597 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1598 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1599 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1600 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1601 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1602 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1603 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1604 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1605 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1606 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1609 /* Sebsequent entries in an absolute procedure linkage table look like
1612 static const bfd_byte elf_sh_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1614 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 16, r25 */
1615 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */
1616 0x89, 0x90, 0x01, 0x90, /* ld.l r25, 0, r25 */
1617 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1618 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1619 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1620 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1621 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1622 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */
1623 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */
1624 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1625 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
1626 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
1627 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1628 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1629 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1632 static const bfd_byte elf_sh_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1634 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */
1635 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */
1636 0x90, 0x01, 0x90, 0x89, /* ld.l r25, 0, r25 */
1637 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1638 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1639 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1640 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1641 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1642 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */
1643 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */
1644 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1645 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
1646 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
1647 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1648 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1649 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1652 /* Entries in a PIC procedure linkage table look like this. */
1654 static const bfd_byte elf_sh_pic_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1656 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */
1657 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */
1658 0x40, 0xc2, 0x65, 0x90, /* ldx.l r12, r25, r25 */
1659 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1660 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1661 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1662 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1663 0x6f, 0xf0, 0xff, 0xf0, /* nop */
1664 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */
1665 0x00, 0xc8, 0x45, 0x10, /* add.l r12, r17, r17 */
1666 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */
1667 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */
1668 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */
1669 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */
1670 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */
1671 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */
1674 static const bfd_byte elf_sh_pic_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1676 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */
1677 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */
1678 0x90, 0x65, 0xc2, 0x40, /* ldx.l r12, r25, r25 */
1679 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1680 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1681 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1682 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1683 0xf0, 0xff, 0xf0, 0x6f, /* nop */
1684 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */
1685 0x10, 0x45, 0xc8, 0x00, /* add.l r12, r17, r17 */
1686 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */
1687 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */
1688 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */
1689 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */
1690 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */
1691 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */
1694 static const struct elf_sh_plt_info elf_sh_plts
[2][2] = {
1697 /* Big-endian non-PIC. */
1698 elf_sh_plt0_entry_be
,
1700 { 0, MINUS_ONE
, MINUS_ONE
},
1701 elf_sh_plt_entry_be
,
1704 33 /* includes ISA encoding */
1707 /* Little-endian non-PIC. */
1708 elf_sh_plt0_entry_le
,
1710 { 0, MINUS_ONE
, MINUS_ONE
},
1711 elf_sh_plt_entry_le
,
1714 33 /* includes ISA encoding */
1719 /* Big-endian PIC. */
1720 elf_sh_plt0_entry_be
,
1722 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1723 elf_sh_pic_plt_entry_be
,
1725 { 0, MINUS_ONE
, 52 },
1726 33 /* includes ISA encoding */
1729 /* Little-endian PIC. */
1730 elf_sh_plt0_entry_le
,
1732 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1733 elf_sh_pic_plt_entry_le
,
1735 { 0, MINUS_ONE
, 52 },
1736 33 /* includes ISA encoding */
1741 /* Return offset of the linker in PLT0 entry. */
1742 #define elf_sh_plt0_gotplt_offset(info) 0
1744 /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
1745 VALUE is the field's value and CODE_P is true if VALUE refers to code,
1748 On SH64, each 32-bit field is loaded by a movi/shori pair. */
1751 install_plt_field (bfd
*output_bfd
, bfd_boolean code_p
,
1752 unsigned long value
, bfd_byte
*addr
)
1755 bfd_put_32 (output_bfd
,
1756 bfd_get_32 (output_bfd
, addr
)
1757 | ((value
>> 6) & 0x3fffc00),
1759 bfd_put_32 (output_bfd
,
1760 bfd_get_32 (output_bfd
, addr
+ 4)
1761 | ((value
<< 10) & 0x3fffc00),
1765 /* Return the type of PLT associated with ABFD. PIC_P is true if
1766 the object is position-independent. */
1768 static const struct elf_sh_plt_info
*
1769 get_plt_info (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_boolean pic_p
)
1771 return &elf_sh_plts
[pic_p
][!bfd_big_endian (abfd
)];
1774 /* The size in bytes of an entry in the procedure linkage table. */
1776 #define ELF_PLT_ENTRY_SIZE 28
1778 /* First entry in an absolute procedure linkage table look like this. */
1780 /* Note - this code has been "optimised" not to use r2. r2 is used by
1781 GCC to return the address of large structures, so it should not be
1782 corrupted here. This does mean however, that this PLT does not conform
1783 to the SH PIC ABI. That spec says that r0 contains the type of the PLT
1784 and r2 contains the GOT id. This version stores the GOT id in r0 and
1785 ignores the type. Loaders can easily detect this difference however,
1786 since the type will always be 0 or 8, and the GOT ids will always be
1787 greater than or equal to 12. */
1788 static const bfd_byte elf_sh_plt0_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1790 0xd0, 0x05, /* mov.l 2f,r0 */
1791 0x60, 0x02, /* mov.l @r0,r0 */
1792 0x2f, 0x06, /* mov.l r0,@-r15 */
1793 0xd0, 0x03, /* mov.l 1f,r0 */
1794 0x60, 0x02, /* mov.l @r0,r0 */
1795 0x40, 0x2b, /* jmp @r0 */
1796 0x60, 0xf6, /* mov.l @r15+,r0 */
1797 0x00, 0x09, /* nop */
1798 0x00, 0x09, /* nop */
1799 0x00, 0x09, /* nop */
1800 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1801 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1804 static const bfd_byte elf_sh_plt0_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1806 0x05, 0xd0, /* mov.l 2f,r0 */
1807 0x02, 0x60, /* mov.l @r0,r0 */
1808 0x06, 0x2f, /* mov.l r0,@-r15 */
1809 0x03, 0xd0, /* mov.l 1f,r0 */
1810 0x02, 0x60, /* mov.l @r0,r0 */
1811 0x2b, 0x40, /* jmp @r0 */
1812 0xf6, 0x60, /* mov.l @r15+,r0 */
1813 0x09, 0x00, /* nop */
1814 0x09, 0x00, /* nop */
1815 0x09, 0x00, /* nop */
1816 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */
1817 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */
1820 /* Sebsequent entries in an absolute procedure linkage table look like
1823 static const bfd_byte elf_sh_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1825 0xd0, 0x04, /* mov.l 1f,r0 */
1826 0x60, 0x02, /* mov.l @(r0,r12),r0 */
1827 0xd1, 0x02, /* mov.l 0f,r1 */
1828 0x40, 0x2b, /* jmp @r0 */
1829 0x60, 0x13, /* mov r1,r0 */
1830 0xd1, 0x03, /* mov.l 2f,r1 */
1831 0x40, 0x2b, /* jmp @r0 */
1832 0x00, 0x09, /* nop */
1833 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1834 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1835 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1838 static const bfd_byte elf_sh_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1840 0x04, 0xd0, /* mov.l 1f,r0 */
1841 0x02, 0x60, /* mov.l @r0,r0 */
1842 0x02, 0xd1, /* mov.l 0f,r1 */
1843 0x2b, 0x40, /* jmp @r0 */
1844 0x13, 0x60, /* mov r1,r0 */
1845 0x03, 0xd1, /* mov.l 2f,r1 */
1846 0x2b, 0x40, /* jmp @r0 */
1847 0x09, 0x00, /* nop */
1848 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */
1849 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1850 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */
1853 /* Entries in a PIC procedure linkage table look like this. */
1855 static const bfd_byte elf_sh_pic_plt_entry_be
[ELF_PLT_ENTRY_SIZE
] =
1857 0xd0, 0x04, /* mov.l 1f,r0 */
1858 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1859 0x40, 0x2b, /* jmp @r0 */
1860 0x00, 0x09, /* nop */
1861 0x50, 0xc2, /* mov.l @(8,r12),r0 */
1862 0xd1, 0x03, /* mov.l 2f,r1 */
1863 0x40, 0x2b, /* jmp @r0 */
1864 0x50, 0xc1, /* mov.l @(4,r12),r0 */
1865 0x00, 0x09, /* nop */
1866 0x00, 0x09, /* nop */
1867 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1868 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1871 static const bfd_byte elf_sh_pic_plt_entry_le
[ELF_PLT_ENTRY_SIZE
] =
1873 0x04, 0xd0, /* mov.l 1f,r0 */
1874 0xce, 0x00, /* mov.l @(r0,r12),r0 */
1875 0x2b, 0x40, /* jmp @r0 */
1876 0x09, 0x00, /* nop */
1877 0xc2, 0x50, /* mov.l @(8,r12),r0 */
1878 0x03, 0xd1, /* mov.l 2f,r1 */
1879 0x2b, 0x40, /* jmp @r0 */
1880 0xc1, 0x50, /* mov.l @(4,r12),r0 */
1881 0x09, 0x00, /* nop */
1882 0x09, 0x00, /* nop */
1883 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */
1884 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */
1887 static const struct elf_sh_plt_info elf_sh_plts
[2][2] = {
1890 /* Big-endian non-PIC. */
1891 elf_sh_plt0_entry_be
,
1893 { MINUS_ONE
, 24, 20 },
1894 elf_sh_plt_entry_be
,
1900 /* Little-endian non-PIC. */
1901 elf_sh_plt0_entry_le
,
1903 { MINUS_ONE
, 24, 20 },
1904 elf_sh_plt_entry_le
,
1912 /* Big-endian PIC. */
1913 elf_sh_plt0_entry_be
,
1915 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1916 elf_sh_pic_plt_entry_be
,
1918 { 20, MINUS_ONE
, 24 },
1922 /* Little-endian PIC. */
1923 elf_sh_plt0_entry_le
,
1925 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
1926 elf_sh_pic_plt_entry_le
,
1928 { 20, MINUS_ONE
, 24 },
1934 #define VXWORKS_PLT_HEADER_SIZE 12
1935 #define VXWORKS_PLT_ENTRY_SIZE 24
1937 static const bfd_byte vxworks_sh_plt0_entry_be
[VXWORKS_PLT_HEADER_SIZE
] =
1939 0xd1, 0x01, /* mov.l @(8,pc),r1 */
1940 0x61, 0x12, /* mov.l @r1,r1 */
1941 0x41, 0x2b, /* jmp @r1 */
1942 0x00, 0x09, /* nop */
1943 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1946 static const bfd_byte vxworks_sh_plt0_entry_le
[VXWORKS_PLT_HEADER_SIZE
] =
1948 0x01, 0xd1, /* mov.l @(8,pc),r1 */
1949 0x12, 0x61, /* mov.l @r1,r1 */
1950 0x2b, 0x41, /* jmp @r1 */
1951 0x09, 0x00, /* nop */
1952 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */
1955 static const bfd_byte vxworks_sh_plt_entry_be
[VXWORKS_PLT_ENTRY_SIZE
] =
1957 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1958 0x60, 0x02, /* mov.l @r0,r0 */
1959 0x40, 0x2b, /* jmp @r0 */
1960 0x00, 0x09, /* nop */
1961 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1962 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1963 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */
1964 0x00, 0x09, /* nop */
1965 0x00, 0x09, /* nop */
1966 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1969 static const bfd_byte vxworks_sh_plt_entry_le
[VXWORKS_PLT_ENTRY_SIZE
] =
1971 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1972 0x02, 0x60, /* mov.l @r0,r0 */
1973 0x2b, 0x40, /* jmp @r0 */
1974 0x09, 0x00, /* nop */
1975 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */
1976 0x01, 0xd0, /* mov.l @(8,pc),r0 */
1977 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */
1978 0x09, 0x00, /* nop */
1979 0x09, 0x00, /* nop */
1980 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1983 static const bfd_byte vxworks_sh_pic_plt_entry_be
[VXWORKS_PLT_ENTRY_SIZE
] =
1985 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1986 0x00, 0xce, /* mov.l @(r0,r12),r0 */
1987 0x40, 0x2b, /* jmp @r0 */
1988 0x00, 0x09, /* nop */
1989 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
1990 0xd0, 0x01, /* mov.l @(8,pc),r0 */
1991 0x51, 0xc2, /* mov.l @(8,r12),r1 */
1992 0x41, 0x2b, /* jmp @r1 */
1993 0x00, 0x09, /* nop */
1994 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
1997 static const bfd_byte vxworks_sh_pic_plt_entry_le
[VXWORKS_PLT_ENTRY_SIZE
] =
1999 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2000 0xce, 0x00, /* mov.l @(r0,r12),r0 */
2001 0x2b, 0x40, /* jmp @r0 */
2002 0x09, 0x00, /* nop */
2003 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */
2004 0x01, 0xd0, /* mov.l @(8,pc),r0 */
2005 0xc2, 0x51, /* mov.l @(8,r12),r1 */
2006 0x2b, 0x41, /* jmp @r1 */
2007 0x09, 0x00, /* nop */
2008 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */
2011 static const struct elf_sh_plt_info vxworks_sh_plts
[2][2] = {
2014 /* Big-endian non-PIC. */
2015 vxworks_sh_plt0_entry_be
,
2016 VXWORKS_PLT_HEADER_SIZE
,
2017 { MINUS_ONE
, MINUS_ONE
, 8 },
2018 vxworks_sh_plt_entry_be
,
2019 VXWORKS_PLT_ENTRY_SIZE
,
2024 /* Little-endian non-PIC. */
2025 vxworks_sh_plt0_entry_le
,
2026 VXWORKS_PLT_HEADER_SIZE
,
2027 { MINUS_ONE
, MINUS_ONE
, 8 },
2028 vxworks_sh_plt_entry_le
,
2029 VXWORKS_PLT_ENTRY_SIZE
,
2036 /* Big-endian PIC. */
2039 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2040 vxworks_sh_pic_plt_entry_be
,
2041 VXWORKS_PLT_ENTRY_SIZE
,
2042 { 8, MINUS_ONE
, 20 },
2046 /* Little-endian PIC. */
2049 { MINUS_ONE
, MINUS_ONE
, MINUS_ONE
},
2050 vxworks_sh_pic_plt_entry_le
,
2051 VXWORKS_PLT_ENTRY_SIZE
,
2052 { 8, MINUS_ONE
, 20 },
2058 /* Return the type of PLT associated with ABFD. PIC_P is true if
2059 the object is position-independent. */
2061 static const struct elf_sh_plt_info
*
2062 get_plt_info (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_boolean pic_p
)
2064 if (vxworks_object_p (abfd
))
2065 return &vxworks_sh_plts
[pic_p
][!bfd_big_endian (abfd
)];
2066 return &elf_sh_plts
[pic_p
][!bfd_big_endian (abfd
)];
2069 /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD.
2070 VALUE is the field's value and CODE_P is true if VALUE refers to code,
2074 install_plt_field (bfd
*output_bfd
, bfd_boolean code_p ATTRIBUTE_UNUSED
,
2075 unsigned long value
, bfd_byte
*addr
)
2077 bfd_put_32 (output_bfd
, value
, addr
);
2081 /* Return the index of the PLT entry at byte offset OFFSET. */
2084 get_plt_index (const struct elf_sh_plt_info
*info
, bfd_vma offset
)
2086 return (offset
- info
->plt0_entry_size
) / info
->symbol_entry_size
;
2089 /* Do the inverse operation. */
2092 get_plt_offset (const struct elf_sh_plt_info
*info
, bfd_vma index
)
2094 return info
->plt0_entry_size
+ (index
* info
->symbol_entry_size
);
2097 /* The sh linker needs to keep track of the number of relocs that it
2098 decides to copy as dynamic relocs in check_relocs for each symbol.
2099 This is so that it can later discard them if they are found to be
2100 unnecessary. We store the information in a field extending the
2101 regular ELF linker hash table. */
2103 struct elf_sh_dyn_relocs
2105 struct elf_sh_dyn_relocs
*next
;
2107 /* The input section of the reloc. */
2110 /* Total number of relocs copied for the input section. */
2111 bfd_size_type count
;
2113 /* Number of pc-relative relocs copied for the input section. */
2114 bfd_size_type pc_count
;
2117 /* sh ELF linker hash entry. */
2119 struct elf_sh_link_hash_entry
2121 struct elf_link_hash_entry root
;
2123 #ifdef INCLUDE_SHMEDIA
2126 bfd_signed_vma refcount
;
2131 /* Track dynamic relocs copied for this symbol. */
2132 struct elf_sh_dyn_relocs
*dyn_relocs
;
2134 bfd_signed_vma gotplt_refcount
;
2137 GOT_UNKNOWN
= 0, GOT_NORMAL
, GOT_TLS_GD
, GOT_TLS_IE
2141 #define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent))
2143 struct sh_elf_obj_tdata
2145 struct elf_obj_tdata root
;
2147 /* tls_type for each local got entry. */
2148 char *local_got_tls_type
;
2151 #define sh_elf_tdata(abfd) \
2152 ((struct sh_elf_obj_tdata *) (abfd)->tdata.any)
2154 #define sh_elf_local_got_tls_type(abfd) \
2155 (sh_elf_tdata (abfd)->local_got_tls_type)
2157 #define is_sh_elf(bfd) \
2158 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
2159 && elf_tdata (bfd) != NULL \
2160 && elf_object_id (bfd) == SH_ELF_TDATA)
2162 /* Override the generic function because we need to store sh_elf_obj_tdata
2163 as the specific tdata. */
2166 sh_elf_mkobject (bfd
*abfd
)
2168 return bfd_elf_allocate_object (abfd
, sizeof (struct sh_elf_obj_tdata
),
2172 /* sh ELF linker hash table. */
2174 struct elf_sh_link_hash_table
2176 struct elf_link_hash_table root
;
2178 /* Short-cuts to get to dynamic linker sections. */
2187 /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
2190 /* Small local sym to section mapping cache. */
2191 struct sym_sec_cache sym_sec
;
2193 /* A counter or offset to track a TLS got entry. */
2196 bfd_signed_vma refcount
;
2200 /* The type of PLT to use. */
2201 const struct elf_sh_plt_info
*plt_info
;
2203 /* True if the target system is VxWorks. */
2204 bfd_boolean vxworks_p
;
2207 /* Traverse an sh ELF linker hash table. */
2209 #define sh_elf_link_hash_traverse(table, func, info) \
2210 (elf_link_hash_traverse \
2212 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
2215 /* Get the sh ELF linker hash table from a link_info structure. */
2217 #define sh_elf_hash_table(p) \
2218 ((struct elf_sh_link_hash_table *) ((p)->hash))
2220 /* Create an entry in an sh ELF linker hash table. */
2222 static struct bfd_hash_entry
*
2223 sh_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
2224 struct bfd_hash_table
*table
,
2227 struct elf_sh_link_hash_entry
*ret
=
2228 (struct elf_sh_link_hash_entry
*) entry
;
2230 /* Allocate the structure if it has not already been allocated by a
2232 if (ret
== (struct elf_sh_link_hash_entry
*) NULL
)
2233 ret
= ((struct elf_sh_link_hash_entry
*)
2234 bfd_hash_allocate (table
,
2235 sizeof (struct elf_sh_link_hash_entry
)));
2236 if (ret
== (struct elf_sh_link_hash_entry
*) NULL
)
2237 return (struct bfd_hash_entry
*) ret
;
2239 /* Call the allocation method of the superclass. */
2240 ret
= ((struct elf_sh_link_hash_entry
*)
2241 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
2243 if (ret
!= (struct elf_sh_link_hash_entry
*) NULL
)
2245 ret
->dyn_relocs
= NULL
;
2246 ret
->gotplt_refcount
= 0;
2247 #ifdef INCLUDE_SHMEDIA
2248 ret
->datalabel_got
.refcount
= ret
->root
.got
.refcount
;
2250 ret
->tls_type
= GOT_UNKNOWN
;
2253 return (struct bfd_hash_entry
*) ret
;
2256 /* Create an sh ELF linker hash table. */
2258 static struct bfd_link_hash_table
*
2259 sh_elf_link_hash_table_create (bfd
*abfd
)
2261 struct elf_sh_link_hash_table
*ret
;
2262 bfd_size_type amt
= sizeof (struct elf_sh_link_hash_table
);
2264 ret
= (struct elf_sh_link_hash_table
*) bfd_malloc (amt
);
2265 if (ret
== (struct elf_sh_link_hash_table
*) NULL
)
2268 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
2269 sh_elf_link_hash_newfunc
,
2270 sizeof (struct elf_sh_link_hash_entry
)))
2277 ret
->sgotplt
= NULL
;
2278 ret
->srelgot
= NULL
;
2280 ret
->srelplt
= NULL
;
2281 ret
->sdynbss
= NULL
;
2282 ret
->srelbss
= NULL
;
2283 ret
->srelplt2
= NULL
;
2284 ret
->sym_sec
.abfd
= NULL
;
2285 ret
->tls_ldm_got
.refcount
= 0;
2286 ret
->plt_info
= NULL
;
2287 ret
->vxworks_p
= vxworks_object_p (abfd
);
2289 return &ret
->root
.root
;
2292 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
2293 shortcuts to them in our hash table. */
2296 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
2298 struct elf_sh_link_hash_table
*htab
;
2300 if (! _bfd_elf_create_got_section (dynobj
, info
))
2303 htab
= sh_elf_hash_table (info
);
2304 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
2305 htab
->sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
2306 if (! htab
->sgot
|| ! htab
->sgotplt
)
2309 htab
->srelgot
= bfd_make_section_with_flags (dynobj
, ".rela.got",
2310 (SEC_ALLOC
| SEC_LOAD
2313 | SEC_LINKER_CREATED
2315 if (htab
->srelgot
== NULL
2316 || ! bfd_set_section_alignment (dynobj
, htab
->srelgot
, 2))
2321 /* Create dynamic sections when linking against a dynamic object. */
2324 sh_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
2326 struct elf_sh_link_hash_table
*htab
;
2327 flagword flags
, pltflags
;
2328 register asection
*s
;
2329 const struct elf_backend_data
*bed
= get_elf_backend_data (abfd
);
2332 switch (bed
->s
->arch_size
)
2343 bfd_set_error (bfd_error_bad_value
);
2347 htab
= sh_elf_hash_table (info
);
2348 if (htab
->root
.dynamic_sections_created
)
2351 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
2352 .rel[a].bss sections. */
2354 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
2355 | SEC_LINKER_CREATED
);
2358 pltflags
|= SEC_CODE
;
2359 if (bed
->plt_not_loaded
)
2360 pltflags
&= ~ (SEC_LOAD
| SEC_HAS_CONTENTS
);
2361 if (bed
->plt_readonly
)
2362 pltflags
|= SEC_READONLY
;
2364 s
= bfd_make_section_with_flags (abfd
, ".plt", pltflags
);
2367 || ! bfd_set_section_alignment (abfd
, s
, bed
->plt_alignment
))
2370 if (bed
->want_plt_sym
)
2372 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
2374 struct elf_link_hash_entry
*h
;
2375 struct bfd_link_hash_entry
*bh
= NULL
;
2377 if (! (_bfd_generic_link_add_one_symbol
2378 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
2379 (bfd_vma
) 0, (const char *) NULL
, FALSE
,
2380 get_elf_backend_data (abfd
)->collect
, &bh
)))
2383 h
= (struct elf_link_hash_entry
*) bh
;
2385 h
->type
= STT_OBJECT
;
2386 htab
->root
.hplt
= h
;
2389 && ! bfd_elf_link_record_dynamic_symbol (info
, h
))
2393 s
= bfd_make_section_with_flags (abfd
,
2394 bed
->default_use_rela_p
? ".rela.plt" : ".rel.plt",
2395 flags
| SEC_READONLY
);
2398 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
2401 if (htab
->sgot
== NULL
2402 && !create_got_section (abfd
, info
))
2406 const char *secname
;
2411 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
2413 secflags
= bfd_get_section_flags (abfd
, sec
);
2414 if ((secflags
& (SEC_DATA
| SEC_LINKER_CREATED
))
2415 || ((secflags
& SEC_HAS_CONTENTS
) != SEC_HAS_CONTENTS
))
2417 secname
= bfd_get_section_name (abfd
, sec
);
2418 relname
= (char *) bfd_malloc ((bfd_size_type
) strlen (secname
) + 6);
2419 strcpy (relname
, ".rela");
2420 strcat (relname
, secname
);
2421 if (bfd_get_section_by_name (abfd
, secname
))
2423 s
= bfd_make_section_with_flags (abfd
, relname
,
2424 flags
| SEC_READONLY
);
2426 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
2431 if (bed
->want_dynbss
)
2433 /* The .dynbss section is a place to put symbols which are defined
2434 by dynamic objects, are referenced by regular objects, and are
2435 not functions. We must allocate space for them in the process
2436 image and use a R_*_COPY reloc to tell the dynamic linker to
2437 initialize them at run time. The linker script puts the .dynbss
2438 section into the .bss section of the final image. */
2439 s
= bfd_make_section_with_flags (abfd
, ".dynbss",
2440 SEC_ALLOC
| SEC_LINKER_CREATED
);
2445 /* The .rel[a].bss section holds copy relocs. This section is not
2446 normally needed. We need to create it here, though, so that the
2447 linker will map it to an output section. We can't just create it
2448 only if we need it, because we will not know whether we need it
2449 until we have seen all the input files, and the first time the
2450 main linker code calls BFD after examining all the input files
2451 (size_dynamic_sections) the input sections have already been
2452 mapped to the output sections. If the section turns out not to
2453 be needed, we can discard it later. We will never need this
2454 section when generating a shared object, since they do not use
2458 s
= bfd_make_section_with_flags (abfd
,
2459 (bed
->default_use_rela_p
2460 ? ".rela.bss" : ".rel.bss"),
2461 flags
| SEC_READONLY
);
2464 || ! bfd_set_section_alignment (abfd
, s
, ptralign
))
2469 if (htab
->vxworks_p
)
2471 if (!elf_vxworks_create_dynamic_sections (abfd
, info
, &htab
->srelplt2
))
2478 /* Adjust a symbol defined by a dynamic object and referenced by a
2479 regular object. The current definition is in some section of the
2480 dynamic object, but we're not including those sections. We have to
2481 change the definition to something the rest of the link can
2485 sh_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
2486 struct elf_link_hash_entry
*h
)
2488 struct elf_sh_link_hash_table
*htab
;
2489 struct elf_sh_link_hash_entry
*eh
;
2490 struct elf_sh_dyn_relocs
*p
;
2493 htab
= sh_elf_hash_table (info
);
2495 /* Make sure we know what is going on here. */
2496 BFD_ASSERT (htab
->root
.dynobj
!= NULL
2498 || h
->u
.weakdef
!= NULL
2501 && !h
->def_regular
)));
2503 /* If this is a function, put it in the procedure linkage table. We
2504 will fill in the contents of the procedure linkage table later,
2505 when we know the address of the .got section. */
2506 if (h
->type
== STT_FUNC
2509 if (h
->plt
.refcount
<= 0
2510 || SYMBOL_CALLS_LOCAL (info
, h
)
2511 || (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
2512 && h
->root
.type
== bfd_link_hash_undefweak
))
2514 /* This case can occur if we saw a PLT reloc in an input
2515 file, but the symbol was never referred to by a dynamic
2516 object. In such a case, we don't actually need to build
2517 a procedure linkage table, and we can just do a REL32
2519 h
->plt
.offset
= (bfd_vma
) -1;
2526 h
->plt
.offset
= (bfd_vma
) -1;
2528 /* If this is a weak symbol, and there is a real definition, the
2529 processor independent code will have arranged for us to see the
2530 real definition first, and we can just use the same value. */
2531 if (h
->u
.weakdef
!= NULL
)
2533 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
2534 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
2535 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
2536 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
2537 if (info
->nocopyreloc
)
2538 h
->non_got_ref
= h
->u
.weakdef
->non_got_ref
;
2542 /* This is a reference to a symbol defined by a dynamic object which
2543 is not a function. */
2545 /* If we are creating a shared library, we must presume that the
2546 only references to the symbol are via the global offset table.
2547 For such cases we need not do anything here; the relocations will
2548 be handled correctly by relocate_section. */
2552 /* If there are no references to this symbol that do not use the
2553 GOT, we don't need to generate a copy reloc. */
2554 if (!h
->non_got_ref
)
2557 /* If -z nocopyreloc was given, we won't generate them either. */
2558 if (info
->nocopyreloc
)
2564 eh
= (struct elf_sh_link_hash_entry
*) h
;
2565 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2567 s
= p
->sec
->output_section
;
2568 if (s
!= NULL
&& (s
->flags
& (SEC_READONLY
| SEC_HAS_CONTENTS
)) != 0)
2572 /* If we didn't find any dynamic relocs in sections which needs the
2573 copy reloc, then we'll be keeping the dynamic relocs and avoiding
2583 (*_bfd_error_handler
) (_("dynamic variable `%s' is zero size"),
2584 h
->root
.root
.string
);
2588 /* We must allocate the symbol in our .dynbss section, which will
2589 become part of the .bss section of the executable. There will be
2590 an entry for this symbol in the .dynsym section. The dynamic
2591 object will contain position independent code, so all references
2592 from the dynamic object to this symbol will go through the global
2593 offset table. The dynamic linker will use the .dynsym entry to
2594 determine the address it must put in the global offset table, so
2595 both the dynamic object and the regular object will refer to the
2596 same memory location for the variable. */
2599 BFD_ASSERT (s
!= NULL
);
2601 /* We must generate a R_SH_COPY reloc to tell the dynamic linker to
2602 copy the initial value out of the dynamic object and into the
2603 runtime process image. We need to remember the offset into the
2604 .rela.bss section we are going to use. */
2605 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
2609 srel
= htab
->srelbss
;
2610 BFD_ASSERT (srel
!= NULL
);
2611 srel
->size
+= sizeof (Elf32_External_Rela
);
2615 return _bfd_elf_adjust_dynamic_copy (h
, s
);
2618 /* Allocate space in .plt, .got and associated reloc sections for
2622 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
2624 struct bfd_link_info
*info
;
2625 struct elf_sh_link_hash_table
*htab
;
2626 struct elf_sh_link_hash_entry
*eh
;
2627 struct elf_sh_dyn_relocs
*p
;
2629 if (h
->root
.type
== bfd_link_hash_indirect
)
2632 if (h
->root
.type
== bfd_link_hash_warning
)
2633 /* When warning symbols are created, they **replace** the "real"
2634 entry in the hash table, thus we never get to see the real
2635 symbol in a hash traversal. So look at it now. */
2636 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2638 info
= (struct bfd_link_info
*) inf
;
2639 htab
= sh_elf_hash_table (info
);
2641 eh
= (struct elf_sh_link_hash_entry
*) h
;
2642 if ((h
->got
.refcount
> 0
2644 && eh
->gotplt_refcount
> 0)
2646 /* The symbol has been forced local, or we have some direct got refs,
2647 so treat all the gotplt refs as got refs. */
2648 h
->got
.refcount
+= eh
->gotplt_refcount
;
2649 if (h
->plt
.refcount
>= eh
->gotplt_refcount
)
2650 h
->plt
.refcount
-= eh
->gotplt_refcount
;
2653 if (htab
->root
.dynamic_sections_created
2654 && h
->plt
.refcount
> 0
2655 && (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2656 || h
->root
.type
!= bfd_link_hash_undefweak
))
2658 /* Make sure this symbol is output as a dynamic symbol.
2659 Undefined weak syms won't yet be marked as dynamic. */
2660 if (h
->dynindx
== -1
2661 && !h
->forced_local
)
2663 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2668 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h
))
2670 asection
*s
= htab
->splt
;
2672 /* If this is the first .plt entry, make room for the special
2675 s
->size
+= htab
->plt_info
->plt0_entry_size
;
2677 h
->plt
.offset
= s
->size
;
2679 /* If this symbol is not defined in a regular file, and we are
2680 not generating a shared library, then set the symbol to this
2681 location in the .plt. This is required to make function
2682 pointers compare as equal between the normal executable and
2683 the shared library. */
2687 h
->root
.u
.def
.section
= s
;
2688 h
->root
.u
.def
.value
= h
->plt
.offset
;
2691 /* Make room for this entry. */
2692 s
->size
+= htab
->plt_info
->symbol_entry_size
;
2694 /* We also need to make an entry in the .got.plt section, which
2695 will be placed in the .got section by the linker script. */
2696 htab
->sgotplt
->size
+= 4;
2698 /* We also need to make an entry in the .rel.plt section. */
2699 htab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
2701 if (htab
->vxworks_p
&& !info
->shared
)
2703 /* VxWorks executables have a second set of relocations
2704 for each PLT entry. They go in a separate relocation
2705 section, which is processed by the kernel loader. */
2707 /* There is a relocation for the initial PLT entry:
2708 an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */
2709 if (h
->plt
.offset
== htab
->plt_info
->plt0_entry_size
)
2710 htab
->srelplt2
->size
+= sizeof (Elf32_External_Rela
);
2712 /* There are two extra relocations for each subsequent
2713 PLT entry: an R_SH_DIR32 relocation for the GOT entry,
2714 and an R_SH_DIR32 relocation for the PLT entry. */
2715 htab
->srelplt2
->size
+= sizeof (Elf32_External_Rela
) * 2;
2720 h
->plt
.offset
= (bfd_vma
) -1;
2726 h
->plt
.offset
= (bfd_vma
) -1;
2730 if (h
->got
.refcount
> 0)
2734 int tls_type
= sh_elf_hash_entry (h
)->tls_type
;
2736 /* Make sure this symbol is output as a dynamic symbol.
2737 Undefined weak syms won't yet be marked as dynamic. */
2738 if (h
->dynindx
== -1
2739 && !h
->forced_local
)
2741 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2746 h
->got
.offset
= s
->size
;
2748 /* R_SH_TLS_GD needs 2 consecutive GOT slots. */
2749 if (tls_type
== GOT_TLS_GD
)
2751 dyn
= htab
->root
.dynamic_sections_created
;
2752 /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic,
2753 R_SH_TLS_GD needs one if local symbol and two if global. */
2754 if ((tls_type
== GOT_TLS_GD
&& h
->dynindx
== -1)
2755 || (tls_type
== GOT_TLS_IE
&& dyn
))
2756 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2757 else if (tls_type
== GOT_TLS_GD
)
2758 htab
->srelgot
->size
+= 2 * sizeof (Elf32_External_Rela
);
2759 else if ((ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2760 || h
->root
.type
!= bfd_link_hash_undefweak
)
2762 || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, 0, h
)))
2763 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2766 h
->got
.offset
= (bfd_vma
) -1;
2768 #ifdef INCLUDE_SHMEDIA
2769 if (eh
->datalabel_got
.refcount
> 0)
2774 /* Make sure this symbol is output as a dynamic symbol.
2775 Undefined weak syms won't yet be marked as dynamic. */
2776 if (h
->dynindx
== -1
2777 && !h
->forced_local
)
2779 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2784 eh
->datalabel_got
.offset
= s
->size
;
2786 dyn
= htab
->root
.dynamic_sections_created
;
2787 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
))
2788 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
2791 eh
->datalabel_got
.offset
= (bfd_vma
) -1;
2794 if (eh
->dyn_relocs
== NULL
)
2797 /* In the shared -Bsymbolic case, discard space allocated for
2798 dynamic pc-relative relocs against symbols which turn out to be
2799 defined in regular objects. For the normal shared case, discard
2800 space for pc-relative relocs that have become local due to symbol
2801 visibility changes. */
2805 if (SYMBOL_CALLS_LOCAL (info
, h
))
2807 struct elf_sh_dyn_relocs
**pp
;
2809 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; )
2811 p
->count
-= p
->pc_count
;
2820 /* Also discard relocs on undefined weak syms with non-default
2822 if (eh
->dyn_relocs
!= NULL
2823 && h
->root
.type
== bfd_link_hash_undefweak
)
2825 if (ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
2826 eh
->dyn_relocs
= NULL
;
2828 /* Make sure undefined weak symbols are output as a dynamic
2830 else if (h
->dynindx
== -1
2831 && !h
->forced_local
)
2833 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2840 /* For the non-shared case, discard space for relocs against
2841 symbols which turn out to need copy relocs or are not
2847 || (htab
->root
.dynamic_sections_created
2848 && (h
->root
.type
== bfd_link_hash_undefweak
2849 || h
->root
.type
== bfd_link_hash_undefined
))))
2851 /* Make sure this symbol is output as a dynamic symbol.
2852 Undefined weak syms won't yet be marked as dynamic. */
2853 if (h
->dynindx
== -1
2854 && !h
->forced_local
)
2856 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2860 /* If that succeeded, we know we'll be keeping all the
2862 if (h
->dynindx
!= -1)
2866 eh
->dyn_relocs
= NULL
;
2871 /* Finally, allocate space. */
2872 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2874 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
2875 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
2881 /* Find any dynamic relocs that apply to read-only sections. */
2884 readonly_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
2886 struct elf_sh_link_hash_entry
*eh
;
2887 struct elf_sh_dyn_relocs
*p
;
2889 if (h
->root
.type
== bfd_link_hash_warning
)
2890 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2892 eh
= (struct elf_sh_link_hash_entry
*) h
;
2893 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
2895 asection
*s
= p
->sec
->output_section
;
2897 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
2899 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
2901 info
->flags
|= DF_TEXTREL
;
2903 /* Not an error, just cut short the traversal. */
2910 /* This function is called after all the input files have been read,
2911 and the input sections have been assigned to output sections.
2912 It's a convenient place to determine the PLT style. */
2915 sh_elf_always_size_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
2917 sh_elf_hash_table (info
)->plt_info
= get_plt_info (output_bfd
, info
->shared
);
2921 /* Set the sizes of the dynamic sections. */
2924 sh_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2925 struct bfd_link_info
*info
)
2927 struct elf_sh_link_hash_table
*htab
;
2933 htab
= sh_elf_hash_table (info
);
2934 dynobj
= htab
->root
.dynobj
;
2935 BFD_ASSERT (dynobj
!= NULL
);
2937 if (htab
->root
.dynamic_sections_created
)
2939 /* Set the contents of the .interp section to the interpreter. */
2940 if (info
->executable
)
2942 s
= bfd_get_section_by_name (dynobj
, ".interp");
2943 BFD_ASSERT (s
!= NULL
);
2944 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
2945 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
2949 /* Set up .got offsets for local syms, and space for local dynamic
2951 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link_next
)
2953 bfd_signed_vma
*local_got
;
2954 bfd_signed_vma
*end_local_got
;
2955 char *local_tls_type
;
2956 bfd_size_type locsymcount
;
2957 Elf_Internal_Shdr
*symtab_hdr
;
2960 if (! is_sh_elf (ibfd
))
2963 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
2965 struct elf_sh_dyn_relocs
*p
;
2967 for (p
= ((struct elf_sh_dyn_relocs
*)
2968 elf_section_data (s
)->local_dynrel
);
2972 if (! bfd_is_abs_section (p
->sec
)
2973 && bfd_is_abs_section (p
->sec
->output_section
))
2975 /* Input section has been discarded, either because
2976 it is a copy of a linkonce section or due to
2977 linker script /DISCARD/, so we'll be discarding
2980 else if (p
->count
!= 0)
2982 srel
= elf_section_data (p
->sec
)->sreloc
;
2983 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
2984 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
2985 info
->flags
|= DF_TEXTREL
;
2990 local_got
= elf_local_got_refcounts (ibfd
);
2994 symtab_hdr
= &elf_symtab_hdr (ibfd
);
2995 locsymcount
= symtab_hdr
->sh_info
;
2996 #ifdef INCLUDE_SHMEDIA
2997 /* Count datalabel local GOT. */
3000 end_local_got
= local_got
+ locsymcount
;
3001 local_tls_type
= sh_elf_local_got_tls_type (ibfd
);
3003 srel
= htab
->srelgot
;
3004 for (; local_got
< end_local_got
; ++local_got
)
3008 *local_got
= s
->size
;
3010 if (*local_tls_type
== GOT_TLS_GD
)
3013 srel
->size
+= sizeof (Elf32_External_Rela
);
3016 *local_got
= (bfd_vma
) -1;
3021 if (htab
->tls_ldm_got
.refcount
> 0)
3023 /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32
3025 htab
->tls_ldm_got
.offset
= htab
->sgot
->size
;
3026 htab
->sgot
->size
+= 8;
3027 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
3030 htab
->tls_ldm_got
.offset
= -1;
3032 /* Allocate global sym .plt and .got entries, and space for global
3033 sym dynamic relocs. */
3034 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, info
);
3036 /* We now have determined the sizes of the various dynamic sections.
3037 Allocate memory for them. */
3039 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3041 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3046 || s
== htab
->sgotplt
3047 || s
== htab
->sdynbss
)
3049 /* Strip this section if we don't need it; see the
3052 else if (CONST_STRNEQ (bfd_get_section_name (dynobj
, s
), ".rela"))
3054 if (s
->size
!= 0 && s
!= htab
->srelplt
&& s
!= htab
->srelplt2
)
3057 /* We use the reloc_count field as a counter if we need
3058 to copy relocs into the output file. */
3063 /* It's not one of our sections, so don't allocate space. */
3069 /* If we don't need this section, strip it from the
3070 output file. This is mostly to handle .rela.bss and
3071 .rela.plt. We must create both sections in
3072 create_dynamic_sections, because they must be created
3073 before the linker maps input sections to output
3074 sections. The linker does that before
3075 adjust_dynamic_symbol is called, and it is that
3076 function which decides whether anything needs to go
3077 into these sections. */
3079 s
->flags
|= SEC_EXCLUDE
;
3083 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
3086 /* Allocate memory for the section contents. We use bfd_zalloc
3087 here in case unused entries are not reclaimed before the
3088 section's contents are written out. This should not happen,
3089 but this way if it does, we get a R_SH_NONE reloc instead
3091 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
3092 if (s
->contents
== NULL
)
3096 if (htab
->root
.dynamic_sections_created
)
3098 /* Add some entries to the .dynamic section. We fill in the
3099 values later, in sh_elf_finish_dynamic_sections, but we
3100 must add the entries now so that we get the correct size for
3101 the .dynamic section. The DT_DEBUG entry is filled in by the
3102 dynamic linker and used by the debugger. */
3103 #define add_dynamic_entry(TAG, VAL) \
3104 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3106 if (info
->executable
)
3108 if (! add_dynamic_entry (DT_DEBUG
, 0))
3112 if (htab
->splt
->size
!= 0)
3114 if (! add_dynamic_entry (DT_PLTGOT
, 0)
3115 || ! add_dynamic_entry (DT_PLTRELSZ
, 0)
3116 || ! add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3117 || ! add_dynamic_entry (DT_JMPREL
, 0))
3123 if (! add_dynamic_entry (DT_RELA
, 0)
3124 || ! add_dynamic_entry (DT_RELASZ
, 0)
3125 || ! add_dynamic_entry (DT_RELAENT
,
3126 sizeof (Elf32_External_Rela
)))
3129 /* If any dynamic relocs apply to a read-only section,
3130 then we need a DT_TEXTREL entry. */
3131 if ((info
->flags
& DF_TEXTREL
) == 0)
3132 elf_link_hash_traverse (&htab
->root
, readonly_dynrelocs
, info
);
3134 if ((info
->flags
& DF_TEXTREL
) != 0)
3136 if (! add_dynamic_entry (DT_TEXTREL
, 0))
3141 && !elf_vxworks_add_dynamic_entries (output_bfd
, info
))
3144 #undef add_dynamic_entry
3149 /* Relocate an SH ELF section. */
3152 sh_elf_relocate_section (bfd
*output_bfd
, struct bfd_link_info
*info
,
3153 bfd
*input_bfd
, asection
*input_section
,
3154 bfd_byte
*contents
, Elf_Internal_Rela
*relocs
,
3155 Elf_Internal_Sym
*local_syms
,
3156 asection
**local_sections
)
3158 struct elf_sh_link_hash_table
*htab
;
3159 Elf_Internal_Shdr
*symtab_hdr
;
3160 struct elf_link_hash_entry
**sym_hashes
;
3161 Elf_Internal_Rela
*rel
, *relend
;
3163 bfd_vma
*local_got_offsets
;
3170 BFD_ASSERT (is_sh_elf (input_bfd
));
3172 htab
= sh_elf_hash_table (info
);
3173 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
3174 sym_hashes
= elf_sym_hashes (input_bfd
);
3175 dynobj
= htab
->root
.dynobj
;
3176 local_got_offsets
= elf_local_got_offsets (input_bfd
);
3179 sgotplt
= htab
->sgotplt
;
3185 relend
= relocs
+ input_section
->reloc_count
;
3186 for (; rel
< relend
; rel
++)
3189 reloc_howto_type
*howto
;
3190 unsigned long r_symndx
;
3191 Elf_Internal_Sym
*sym
;
3193 struct elf_link_hash_entry
*h
;
3195 bfd_vma addend
= (bfd_vma
) 0;
3196 bfd_reloc_status_type r
;
3197 int seen_stt_datalabel
= 0;
3201 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3203 r_type
= ELF32_R_TYPE (rel
->r_info
);
3205 /* Many of the relocs are only used for relaxing, and are
3206 handled entirely by the relaxation code. */
3207 if (r_type
>= (int) R_SH_GNU_VTINHERIT
3208 && r_type
<= (int) R_SH_LABEL
)
3210 if (r_type
== (int) R_SH_NONE
)
3214 || r_type
>= R_SH_max
3215 || (r_type
>= (int) R_SH_FIRST_INVALID_RELOC
3216 && r_type
<= (int) R_SH_LAST_INVALID_RELOC
)
3217 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_3
3218 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_3
)
3219 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_4
3220 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_4
)
3221 || ( r_type
>= (int) R_SH_FIRST_INVALID_RELOC_5
3222 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_5
)
3223 || (r_type
>= (int) R_SH_FIRST_INVALID_RELOC_2
3224 && r_type
<= (int) R_SH_LAST_INVALID_RELOC_2
))
3226 bfd_set_error (bfd_error_bad_value
);
3230 howto
= get_howto_table (output_bfd
) + r_type
;
3232 /* For relocs that aren't partial_inplace, we get the addend from
3234 if (! howto
->partial_inplace
)
3235 addend
= rel
->r_addend
;
3240 if (r_symndx
< symtab_hdr
->sh_info
)
3242 sym
= local_syms
+ r_symndx
;
3243 sec
= local_sections
[r_symndx
];
3244 relocation
= (sec
->output_section
->vma
3245 + sec
->output_offset
3247 /* A local symbol never has STO_SH5_ISA32, so we don't need
3248 datalabel processing here. Make sure this does not change
3250 if ((sym
->st_other
& STO_SH5_ISA32
) != 0)
3251 ((*info
->callbacks
->reloc_dangerous
)
3253 _("Unexpected STO_SH5_ISA32 on local symbol is not handled"),
3254 input_bfd
, input_section
, rel
->r_offset
));
3256 if (sec
!= NULL
&& elf_discarded_section (sec
))
3257 /* Handled below. */
3259 else if (info
->relocatable
)
3261 /* This is a relocatable link. We don't have to change
3262 anything, unless the reloc is against a section symbol,
3263 in which case we have to adjust according to where the
3264 section symbol winds up in the output section. */
3265 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
3267 if (! howto
->partial_inplace
)
3269 /* For relocations with the addend in the
3270 relocation, we need just to update the addend.
3271 All real relocs are of type partial_inplace; this
3272 code is mostly for completeness. */
3273 rel
->r_addend
+= sec
->output_offset
;
3278 /* Relocs of type partial_inplace need to pick up the
3279 contents in the contents and add the offset resulting
3280 from the changed location of the section symbol.
3281 Using _bfd_final_link_relocate (e.g. goto
3282 final_link_relocate) here would be wrong, because
3283 relocations marked pc_relative would get the current
3284 location subtracted, and we must only do that at the
3286 r
= _bfd_relocate_contents (howto
, input_bfd
,
3289 contents
+ rel
->r_offset
);
3290 goto relocation_done
;
3295 else if (! howto
->partial_inplace
)
3297 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
3298 addend
= rel
->r_addend
;
3300 else if ((sec
->flags
& SEC_MERGE
)
3301 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
3305 if (howto
->rightshift
|| howto
->src_mask
!= 0xffffffff)
3307 (*_bfd_error_handler
)
3308 (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"),
3309 input_bfd
, input_section
,
3310 (long) rel
->r_offset
, howto
->name
);
3314 addend
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
3317 _bfd_elf_rel_local_sym (output_bfd
, sym
, &msec
, addend
)
3319 addend
+= msec
->output_section
->vma
+ msec
->output_offset
;
3320 bfd_put_32 (input_bfd
, addend
, contents
+ rel
->r_offset
);
3326 /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */
3329 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3330 while (h
->root
.type
== bfd_link_hash_indirect
3331 || h
->root
.type
== bfd_link_hash_warning
)
3333 #ifdef INCLUDE_SHMEDIA
3334 /* If the reference passes a symbol marked with
3335 STT_DATALABEL, then any STO_SH5_ISA32 on the final value
3337 seen_stt_datalabel
|= h
->type
== STT_DATALABEL
;
3339 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3341 if (h
->root
.type
== bfd_link_hash_defined
3342 || h
->root
.type
== bfd_link_hash_defweak
)
3346 dyn
= htab
->root
.dynamic_sections_created
;
3347 sec
= h
->root
.u
.def
.section
;
3348 /* In these cases, we don't need the relocation value.
3349 We check specially because in some obscure cases
3350 sec->output_section will be NULL. */
3351 if (r_type
== R_SH_GOTPC
3352 || r_type
== R_SH_GOTPC_LOW16
3353 || r_type
== R_SH_GOTPC_MEDLOW16
3354 || r_type
== R_SH_GOTPC_MEDHI16
3355 || r_type
== R_SH_GOTPC_HI16
3356 || ((r_type
== R_SH_PLT32
3357 || r_type
== R_SH_PLT_LOW16
3358 || r_type
== R_SH_PLT_MEDLOW16
3359 || r_type
== R_SH_PLT_MEDHI16
3360 || r_type
== R_SH_PLT_HI16
)
3361 && h
->plt
.offset
!= (bfd_vma
) -1)
3362 || ((r_type
== R_SH_GOT32
3363 || r_type
== R_SH_GOT_LOW16
3364 || r_type
== R_SH_GOT_MEDLOW16
3365 || r_type
== R_SH_GOT_MEDHI16
3366 || r_type
== R_SH_GOT_HI16
)
3367 && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
3369 || (! info
->symbolic
&& h
->dynindx
!= -1)
3370 || !h
->def_regular
))
3371 /* The cases above are those in which relocation is
3372 overwritten in the switch block below. The cases
3373 below are those in which we must defer relocation
3374 to run-time, because we can't resolve absolute
3375 addresses when creating a shared library. */
3377 && ((! info
->symbolic
&& h
->dynindx
!= -1)
3379 && ((r_type
== R_SH_DIR32
3380 && !h
->forced_local
)
3381 || (r_type
== R_SH_REL32
3382 && !SYMBOL_CALLS_LOCAL (info
, h
)))
3383 && ((input_section
->flags
& SEC_ALLOC
) != 0
3384 /* DWARF will emit R_SH_DIR32 relocations in its
3385 sections against symbols defined externally
3386 in shared libraries. We can't do anything
3388 || ((input_section
->flags
& SEC_DEBUGGING
) != 0
3389 && h
->def_dynamic
)))
3390 /* Dynamic relocs are not propagated for SEC_DEBUGGING
3391 sections because such sections are not SEC_ALLOC and
3392 thus ld.so will not process them. */
3393 || (sec
->output_section
== NULL
3394 && ((input_section
->flags
& SEC_DEBUGGING
) != 0
3396 || (sec
->output_section
== NULL
3397 && (sh_elf_hash_entry (h
)->tls_type
== GOT_TLS_IE
3398 || sh_elf_hash_entry (h
)->tls_type
== GOT_TLS_GD
)))
3400 else if (sec
->output_section
!= NULL
)
3401 relocation
= ((h
->root
.u
.def
.value
3402 + sec
->output_section
->vma
3403 + sec
->output_offset
)
3404 /* A STO_SH5_ISA32 causes a "bitor 1" to the
3405 symbol value, unless we've seen
3406 STT_DATALABEL on the way to it. */
3407 | ((h
->other
& STO_SH5_ISA32
) != 0
3408 && ! seen_stt_datalabel
));
3409 else if (!info
->relocatable
)
3411 (*_bfd_error_handler
)
3412 (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
3415 (long) rel
->r_offset
,
3417 h
->root
.root
.string
);
3421 else if (h
->root
.type
== bfd_link_hash_undefweak
)
3423 else if (info
->unresolved_syms_in_objects
== RM_IGNORE
3424 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3426 else if (!info
->relocatable
)
3428 if (! info
->callbacks
->undefined_symbol
3429 (info
, h
->root
.root
.string
, input_bfd
,
3430 input_section
, rel
->r_offset
,
3431 (info
->unresolved_syms_in_objects
== RM_GENERATE_ERROR
3432 || ELF_ST_VISIBILITY (h
->other
))))
3437 if (sec
!= NULL
&& elf_discarded_section (sec
))
3439 /* For relocs against symbols from removed linkonce sections,
3440 or sections discarded by a linker script, we just want the
3441 section contents zeroed. Avoid any special processing. */
3442 _bfd_clear_contents (howto
, input_bfd
, contents
+ rel
->r_offset
);
3448 if (info
->relocatable
)
3451 switch ((int) r_type
)
3453 final_link_relocate
:
3454 /* COFF relocs don't use the addend. The addend is used for
3455 R_SH_DIR32 to be compatible with other compilers. */
3456 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
3457 contents
, rel
->r_offset
,
3458 relocation
, addend
);
3462 goto final_link_relocate
;
3467 /* If the reloc is against the start of this section, then
3468 the assembler has already taken care of it and the reloc
3469 is here only to assist in relaxing. If the reloc is not
3470 against the start of this section, then it's against an
3471 external symbol and we must deal with it ourselves. */
3472 if (input_section
->output_section
->vma
+ input_section
->output_offset
3475 int disp
= (relocation
3476 - input_section
->output_section
->vma
3477 - input_section
->output_offset
3483 case R_SH_DIR8WPZ
: mask
= 1; break;
3484 case R_SH_DIR8WPL
: mask
= 3; break;
3485 default: mask
= 0; break;
3489 ((*_bfd_error_handler
)
3490 (_("%B: 0x%lx: fatal: unaligned branch target for relax-support relocation"),
3491 input_section
->owner
,
3492 (unsigned long) rel
->r_offset
));
3493 bfd_set_error (bfd_error_bad_value
);
3497 goto final_link_relocate
;
3503 #ifdef INCLUDE_SHMEDIA
3504 if (shmedia_prepare_reloc (info
, input_bfd
, input_section
,
3505 contents
, rel
, &relocation
))
3506 goto final_link_relocate
;
3508 bfd_set_error (bfd_error_bad_value
);
3516 goto final_link_relocate
;
3522 ((*_bfd_error_handler
)
3523 (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
3524 input_section
->owner
,
3525 (unsigned long) rel
->r_offset
, howto
->name
,
3526 (unsigned long) relocation
));
3527 bfd_set_error (bfd_error_bad_value
);
3530 goto final_link_relocate
;
3537 ((*_bfd_error_handler
)
3538 (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"),
3539 input_section
->owner
,
3540 (unsigned long) rel
->r_offset
, howto
->name
,
3541 (unsigned long) relocation
));
3542 bfd_set_error (bfd_error_bad_value
);
3545 goto final_link_relocate
;
3548 if ((signed int)relocation
< -32
3549 || (signed int)relocation
> 32)
3551 ((*_bfd_error_handler
)
3552 (_("%B: 0x%lx: fatal: R_SH_PSHA relocation %d not in range -32..32"),
3553 input_section
->owner
,
3554 (unsigned long) rel
->r_offset
,
3555 (unsigned long) relocation
));
3556 bfd_set_error (bfd_error_bad_value
);
3559 goto final_link_relocate
;
3562 if ((signed int)relocation
< -16
3563 || (signed int)relocation
> 16)
3565 ((*_bfd_error_handler
)
3566 (_("%B: 0x%lx: fatal: R_SH_PSHL relocation %d not in range -32..32"),
3567 input_section
->owner
,
3568 (unsigned long) rel
->r_offset
,
3569 (unsigned long) relocation
));
3570 bfd_set_error (bfd_error_bad_value
);
3573 goto final_link_relocate
;
3577 #ifdef INCLUDE_SHMEDIA
3578 case R_SH_IMM_LOW16_PCREL
:
3579 case R_SH_IMM_MEDLOW16_PCREL
:
3580 case R_SH_IMM_MEDHI16_PCREL
:
3581 case R_SH_IMM_HI16_PCREL
:
3585 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
3586 || h
->root
.type
!= bfd_link_hash_undefweak
)
3588 && (input_section
->flags
& SEC_ALLOC
) != 0
3589 && (r_type
== R_SH_DIR32
3590 || !SYMBOL_CALLS_LOCAL (info
, h
)))
3592 Elf_Internal_Rela outrel
;
3594 bfd_boolean skip
, relocate
;
3596 /* When generating a shared object, these relocations
3597 are copied into the output file to be resolved at run
3604 name
= (bfd_elf_string_from_elf_section
3606 elf_elfheader (input_bfd
)->e_shstrndx
,
3607 elf_section_data (input_section
)->rel_hdr
.sh_name
));
3611 BFD_ASSERT (CONST_STRNEQ (name
, ".rela")
3612 && strcmp (bfd_get_section_name (input_bfd
,
3616 sreloc
= bfd_get_section_by_name (dynobj
, name
);
3617 BFD_ASSERT (sreloc
!= NULL
);
3624 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
3626 if (outrel
.r_offset
== (bfd_vma
) -1)
3628 else if (outrel
.r_offset
== (bfd_vma
) -2)
3629 skip
= TRUE
, relocate
= TRUE
;
3630 outrel
.r_offset
+= (input_section
->output_section
->vma
3631 + input_section
->output_offset
);
3634 memset (&outrel
, 0, sizeof outrel
);
3635 else if (r_type
== R_SH_REL32
)
3637 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
3638 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_REL32
);
3640 = (howto
->partial_inplace
3641 ? bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
)
3644 #ifdef INCLUDE_SHMEDIA
3645 else if (r_type
== R_SH_IMM_LOW16_PCREL
3646 || r_type
== R_SH_IMM_MEDLOW16_PCREL
3647 || r_type
== R_SH_IMM_MEDHI16_PCREL
3648 || r_type
== R_SH_IMM_HI16_PCREL
)
3650 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
3651 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
3652 outrel
.r_addend
= addend
;
3657 /* h->dynindx may be -1 if this symbol was marked to
3660 || ((info
->symbolic
|| h
->dynindx
== -1)
3663 relocate
= howto
->partial_inplace
;
3664 outrel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
3668 BFD_ASSERT (h
->dynindx
!= -1);
3669 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_DIR32
);
3671 outrel
.r_addend
= relocation
;
3673 += (howto
->partial_inplace
3674 ? bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
)
3678 loc
= sreloc
->contents
;
3679 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3680 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3682 /* If this reloc is against an external symbol, we do
3683 not want to fiddle with the addend. Otherwise, we
3684 need to include the symbol value so that it becomes
3685 an addend for the dynamic reloc. */
3689 goto final_link_relocate
;
3692 #ifdef INCLUDE_SHMEDIA
3693 case R_SH_GOTPLT_LOW16
:
3694 case R_SH_GOTPLT_MEDLOW16
:
3695 case R_SH_GOTPLT_MEDHI16
:
3696 case R_SH_GOTPLT_HI16
:
3697 case R_SH_GOTPLT10BY4
:
3698 case R_SH_GOTPLT10BY8
:
3700 /* Relocation is to the entry for this symbol in the
3701 procedure linkage table. */
3708 || h
->plt
.offset
== (bfd_vma
) -1
3709 || h
->got
.offset
!= (bfd_vma
) -1)
3712 /* Relocation is to the entry for this symbol in the global
3713 offset table extension for the procedure linkage table. */
3715 BFD_ASSERT (sgotplt
!= NULL
);
3716 relocation
= (sgotplt
->output_offset
3717 + (get_plt_index (htab
->plt_info
, h
->plt
.offset
)
3721 relocation
-= GOT_BIAS
;
3724 goto final_link_relocate
;
3728 #ifdef INCLUDE_SHMEDIA
3729 case R_SH_GOT_LOW16
:
3730 case R_SH_GOT_MEDLOW16
:
3731 case R_SH_GOT_MEDHI16
:
3736 /* Relocation is to the entry for this symbol in the global
3739 BFD_ASSERT (sgot
!= NULL
);
3745 off
= h
->got
.offset
;
3746 #ifdef INCLUDE_SHMEDIA
3747 if (seen_stt_datalabel
)
3749 struct elf_sh_link_hash_entry
*hsh
;
3751 hsh
= (struct elf_sh_link_hash_entry
*)h
;
3752 off
= hsh
->datalabel_got
.offset
;
3755 BFD_ASSERT (off
!= (bfd_vma
) -1);
3757 dyn
= htab
->root
.dynamic_sections_created
;
3758 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, info
->shared
, h
)
3760 && SYMBOL_REFERENCES_LOCAL (info
, h
))
3761 || (ELF_ST_VISIBILITY (h
->other
)
3762 && h
->root
.type
== bfd_link_hash_undefweak
))
3764 /* This is actually a static link, or it is a
3765 -Bsymbolic link and the symbol is defined
3766 locally, or the symbol was forced to be local
3767 because of a version file. We must initialize
3768 this entry in the global offset table. Since the
3769 offset must always be a multiple of 4, we use the
3770 least significant bit to record whether we have
3771 initialized it already.
3773 When doing a dynamic link, we create a .rela.got
3774 relocation entry to initialize the value. This
3775 is done in the finish_dynamic_symbol routine. */
3780 bfd_put_32 (output_bfd
, relocation
,
3781 sgot
->contents
+ off
);
3782 #ifdef INCLUDE_SHMEDIA
3783 if (seen_stt_datalabel
)
3785 struct elf_sh_link_hash_entry
*hsh
;
3787 hsh
= (struct elf_sh_link_hash_entry
*)h
;
3788 hsh
->datalabel_got
.offset
|= 1;
3796 relocation
= sgot
->output_offset
+ off
;
3800 #ifdef INCLUDE_SHMEDIA
3803 BFD_ASSERT (local_got_offsets
!= NULL
3804 && (local_got_offsets
[symtab_hdr
->sh_info
3808 off
= local_got_offsets
[symtab_hdr
->sh_info
3814 BFD_ASSERT (local_got_offsets
!= NULL
3815 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
3817 off
= local_got_offsets
[r_symndx
];
3818 #ifdef INCLUDE_SHMEDIA
3822 /* The offset must always be a multiple of 4. We use
3823 the least significant bit to record whether we have
3824 already generated the necessary reloc. */
3829 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
3833 Elf_Internal_Rela outrel
;
3836 if (srelgot
== NULL
)
3838 srelgot
= bfd_get_section_by_name (dynobj
,
3840 BFD_ASSERT (srelgot
!= NULL
);
3843 outrel
.r_offset
= (sgot
->output_section
->vma
3844 + sgot
->output_offset
3846 outrel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
3847 outrel
.r_addend
= relocation
;
3848 loc
= srelgot
->contents
;
3849 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
3850 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
3853 #ifdef INCLUDE_SHMEDIA
3855 local_got_offsets
[symtab_hdr
->sh_info
+ r_symndx
] |= 1;
3858 local_got_offsets
[r_symndx
] |= 1;
3861 relocation
= sgot
->output_offset
+ off
;
3865 relocation
-= GOT_BIAS
;
3868 goto final_link_relocate
;
3871 #ifdef INCLUDE_SHMEDIA
3872 case R_SH_GOTOFF_LOW16
:
3873 case R_SH_GOTOFF_MEDLOW16
:
3874 case R_SH_GOTOFF_MEDHI16
:
3875 case R_SH_GOTOFF_HI16
:
3877 /* Relocation is relative to the start of the global offset
3880 BFD_ASSERT (sgot
!= NULL
);
3882 /* Note that sgot->output_offset is not involved in this
3883 calculation. We always want the start of .got. If we
3884 defined _GLOBAL_OFFSET_TABLE in a different way, as is
3885 permitted by the ABI, we might have to change this
3887 relocation
-= sgot
->output_section
->vma
;
3890 relocation
-= GOT_BIAS
;
3893 addend
= rel
->r_addend
;
3895 goto final_link_relocate
;
3898 #ifdef INCLUDE_SHMEDIA
3899 case R_SH_GOTPC_LOW16
:
3900 case R_SH_GOTPC_MEDLOW16
:
3901 case R_SH_GOTPC_MEDHI16
:
3902 case R_SH_GOTPC_HI16
:
3904 /* Use global offset table as symbol value. */
3906 BFD_ASSERT (sgot
!= NULL
);
3907 relocation
= sgot
->output_section
->vma
;
3910 relocation
+= GOT_BIAS
;
3913 addend
= rel
->r_addend
;
3915 goto final_link_relocate
;
3918 #ifdef INCLUDE_SHMEDIA
3919 case R_SH_PLT_LOW16
:
3920 case R_SH_PLT_MEDLOW16
:
3921 case R_SH_PLT_MEDHI16
:
3924 /* Relocation is to the entry for this symbol in the
3925 procedure linkage table. */
3927 /* Resolve a PLT reloc against a local symbol directly,
3928 without using the procedure linkage table. */
3930 goto final_link_relocate
;
3932 if (h
->forced_local
)
3933 goto final_link_relocate
;
3935 if (h
->plt
.offset
== (bfd_vma
) -1)
3937 /* We didn't make a PLT entry for this symbol. This
3938 happens when statically linking PIC code, or when
3939 using -Bsymbolic. */
3940 goto final_link_relocate
;
3943 BFD_ASSERT (splt
!= NULL
);
3944 relocation
= (splt
->output_section
->vma
3945 + splt
->output_offset
3948 #ifdef INCLUDE_SHMEDIA
3952 addend
= rel
->r_addend
;
3954 goto final_link_relocate
;
3956 case R_SH_LOOP_START
:
3958 static bfd_vma start
, end
;
3960 start
= (relocation
+ rel
->r_addend
3961 - (sec
->output_section
->vma
+ sec
->output_offset
));
3962 r
= sh_elf_reloc_loop (r_type
, input_bfd
, input_section
, contents
,
3963 rel
->r_offset
, sec
, start
, end
);
3967 end
= (relocation
+ rel
->r_addend
3968 - (sec
->output_section
->vma
+ sec
->output_offset
));
3969 r
= sh_elf_reloc_loop (r_type
, input_bfd
, input_section
, contents
,
3970 rel
->r_offset
, sec
, start
, end
);
3974 case R_SH_TLS_GD_32
:
3975 case R_SH_TLS_IE_32
:
3976 r_type
= sh_elf_optimized_tls_reloc (info
, r_type
, h
== NULL
);
3977 tls_type
= GOT_UNKNOWN
;
3978 if (h
== NULL
&& local_got_offsets
)
3979 tls_type
= sh_elf_local_got_tls_type (input_bfd
) [r_symndx
];
3982 tls_type
= sh_elf_hash_entry (h
)->tls_type
;
3984 && (h
->dynindx
== -1
3986 r_type
= R_SH_TLS_LE_32
;
3989 if (r_type
== R_SH_TLS_GD_32
&& tls_type
== GOT_TLS_IE
)
3990 r_type
= R_SH_TLS_IE_32
;
3992 if (r_type
== R_SH_TLS_LE_32
)
3995 unsigned short insn
;
3997 if (ELF32_R_TYPE (rel
->r_info
) == R_SH_TLS_GD_32
)
3999 /* GD->LE transition:
4000 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4001 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4002 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4004 mov.l 1f,r4; stc gbr,r0; add r4,r0; nop;
4006 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */
4008 offset
= rel
->r_offset
;
4009 BFD_ASSERT (offset
>= 16);
4010 /* Size of GD instructions is 16 or 18. */
4012 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4013 if ((insn
& 0xff00) == 0xc700)
4015 BFD_ASSERT (offset
>= 2);
4017 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4020 BFD_ASSERT ((insn
& 0xff00) == 0xd400);
4021 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
4022 BFD_ASSERT ((insn
& 0xff00) == 0xc700);
4023 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
4024 BFD_ASSERT ((insn
& 0xff00) == 0xd100);
4025 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 6);
4026 BFD_ASSERT (insn
== 0x310c);
4027 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 8);
4028 BFD_ASSERT (insn
== 0x410b);
4029 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 10);
4030 BFD_ASSERT (insn
== 0x34cc);
4032 bfd_put_16 (output_bfd
, 0x0012, contents
+ offset
+ 2);
4033 bfd_put_16 (output_bfd
, 0x304c, contents
+ offset
+ 4);
4034 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 6);
4035 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 8);
4036 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 10);
4042 /* IE->LE transition:
4043 mov.l 1f,r0; stc gbr,rN; mov.l @(r0,r12),rM;
4044 bra 2f; add ...; .align 2; 1: x@GOTTPOFF; 2:
4046 mov.l .Ln,rM; stc gbr,rN; nop; ...;
4049 offset
= rel
->r_offset
;
4050 BFD_ASSERT (offset
>= 16);
4051 /* Size of IE instructions is 10 or 12. */
4053 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4054 if ((insn
& 0xf0ff) == 0x0012)
4056 BFD_ASSERT (offset
>= 2);
4058 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4061 BFD_ASSERT ((insn
& 0xff00) == 0xd000);
4062 index
= insn
& 0x00ff;
4063 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
4064 BFD_ASSERT ((insn
& 0xf0ff) == 0x0012);
4065 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
4066 BFD_ASSERT ((insn
& 0xf0ff) == 0x00ce);
4067 insn
= 0xd000 | (insn
& 0x0f00) | index
;
4068 bfd_put_16 (output_bfd
, insn
, contents
+ offset
+ 0);
4069 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 4);
4072 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4073 contents
+ rel
->r_offset
);
4082 off
= h
->got
.offset
;
4085 if (local_got_offsets
== NULL
)
4088 off
= local_got_offsets
[r_symndx
];
4091 /* Relocate R_SH_TLS_IE_32 directly when statically linking. */
4092 if (r_type
== R_SH_TLS_IE_32
4093 && ! htab
->root
.dynamic_sections_created
)
4096 bfd_put_32 (output_bfd
, tpoff (info
, relocation
),
4097 sgot
->contents
+ off
);
4098 bfd_put_32 (output_bfd
, sgot
->output_offset
+ off
,
4099 contents
+ rel
->r_offset
);
4107 Elf_Internal_Rela outrel
;
4111 if (srelgot
== NULL
)
4113 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
4114 BFD_ASSERT (srelgot
!= NULL
);
4117 outrel
.r_offset
= (sgot
->output_section
->vma
4118 + sgot
->output_offset
+ off
);
4120 if (h
== NULL
|| h
->dynindx
== -1)
4125 dr_type
= (r_type
== R_SH_TLS_GD_32
? R_SH_TLS_DTPMOD32
:
4127 if (dr_type
== R_SH_TLS_TPOFF32
&& indx
== 0)
4128 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4130 outrel
.r_addend
= 0;
4131 outrel
.r_info
= ELF32_R_INFO (indx
, dr_type
);
4132 loc
= srelgot
->contents
;
4133 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4134 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4136 if (r_type
== R_SH_TLS_GD_32
)
4140 bfd_put_32 (output_bfd
,
4141 relocation
- dtpoff_base (info
),
4142 sgot
->contents
+ off
+ 4);
4146 outrel
.r_info
= ELF32_R_INFO (indx
,
4148 outrel
.r_offset
+= 4;
4149 outrel
.r_addend
= 0;
4150 srelgot
->reloc_count
++;
4151 loc
+= sizeof (Elf32_External_Rela
);
4152 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4159 local_got_offsets
[r_symndx
] |= 1;
4162 if (off
>= (bfd_vma
) -2)
4165 if (r_type
== (int) ELF32_R_TYPE (rel
->r_info
))
4166 relocation
= sgot
->output_offset
+ off
;
4170 unsigned short insn
;
4172 /* GD->IE transition:
4173 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4174 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4175 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3:
4177 mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0;
4178 nop; nop; bra 3f; nop; .align 2;
4179 1: .long x@TPOFF; 2:...; 3:. */
4181 offset
= rel
->r_offset
;
4182 BFD_ASSERT (offset
>= 16);
4183 /* Size of GD instructions is 16 or 18. */
4185 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4186 if ((insn
& 0xff00) == 0xc700)
4188 BFD_ASSERT (offset
>= 2);
4190 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4193 BFD_ASSERT ((insn
& 0xff00) == 0xd400);
4195 /* Replace mov.l 1f,R4 with mov.l 1f,r0. */
4196 bfd_put_16 (output_bfd
, insn
& 0xf0ff, contents
+ offset
);
4198 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
4199 BFD_ASSERT ((insn
& 0xff00) == 0xc700);
4200 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
4201 BFD_ASSERT ((insn
& 0xff00) == 0xd100);
4202 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 6);
4203 BFD_ASSERT (insn
== 0x310c);
4204 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 8);
4205 BFD_ASSERT (insn
== 0x410b);
4206 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 10);
4207 BFD_ASSERT (insn
== 0x34cc);
4209 bfd_put_16 (output_bfd
, 0x0412, contents
+ offset
+ 2);
4210 bfd_put_16 (output_bfd
, 0x00ce, contents
+ offset
+ 4);
4211 bfd_put_16 (output_bfd
, 0x304c, contents
+ offset
+ 6);
4212 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 8);
4213 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 10);
4215 bfd_put_32 (output_bfd
, sgot
->output_offset
+ off
,
4216 contents
+ rel
->r_offset
);
4221 addend
= rel
->r_addend
;
4223 goto final_link_relocate
;
4225 case R_SH_TLS_LD_32
:
4229 unsigned short insn
;
4231 /* LD->LE transition:
4232 mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1;
4233 jsr @r1; add r12,r4; bra 3f; nop; .align 2;
4234 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3:
4236 stc gbr,r0; nop; nop; nop;
4237 nop; nop; bra 3f; ...; 3:. */
4239 offset
= rel
->r_offset
;
4240 BFD_ASSERT (offset
>= 16);
4241 /* Size of LD instructions is 16 or 18. */
4243 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4244 if ((insn
& 0xff00) == 0xc700)
4246 BFD_ASSERT (offset
>= 2);
4248 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 0);
4251 BFD_ASSERT ((insn
& 0xff00) == 0xd400);
4252 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 2);
4253 BFD_ASSERT ((insn
& 0xff00) == 0xc700);
4254 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 4);
4255 BFD_ASSERT ((insn
& 0xff00) == 0xd100);
4256 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 6);
4257 BFD_ASSERT (insn
== 0x310c);
4258 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 8);
4259 BFD_ASSERT (insn
== 0x410b);
4260 insn
= bfd_get_16 (input_bfd
, contents
+ offset
+ 10);
4261 BFD_ASSERT (insn
== 0x34cc);
4263 bfd_put_16 (output_bfd
, 0x0012, contents
+ offset
+ 0);
4264 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 2);
4265 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 4);
4266 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 6);
4267 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 8);
4268 bfd_put_16 (output_bfd
, 0x0009, contents
+ offset
+ 10);
4277 off
= htab
->tls_ldm_got
.offset
;
4282 Elf_Internal_Rela outrel
;
4285 srelgot
= htab
->srelgot
;
4286 if (srelgot
== NULL
)
4289 outrel
.r_offset
= (sgot
->output_section
->vma
4290 + sgot
->output_offset
+ off
);
4291 outrel
.r_addend
= 0;
4292 outrel
.r_info
= ELF32_R_INFO (0, R_SH_TLS_DTPMOD32
);
4293 loc
= srelgot
->contents
;
4294 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4295 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4296 htab
->tls_ldm_got
.offset
|= 1;
4299 relocation
= sgot
->output_offset
+ off
;
4300 addend
= rel
->r_addend
;
4302 goto final_link_relocate
;
4304 case R_SH_TLS_LDO_32
:
4306 relocation
= tpoff (info
, relocation
);
4308 relocation
-= dtpoff_base (info
);
4310 addend
= rel
->r_addend
;
4311 goto final_link_relocate
;
4313 case R_SH_TLS_LE_32
:
4316 Elf_Internal_Rela outrel
;
4321 relocation
= tpoff (info
, relocation
);
4322 addend
= rel
->r_addend
;
4323 goto final_link_relocate
;
4330 name
= (bfd_elf_string_from_elf_section
4332 elf_elfheader (input_bfd
)->e_shstrndx
,
4333 elf_section_data (input_section
)->rel_hdr
.sh_name
));
4337 BFD_ASSERT (CONST_STRNEQ (name
, ".rela")
4338 && strcmp (bfd_get_section_name (input_bfd
,
4342 sreloc
= bfd_get_section_by_name (dynobj
, name
);
4343 BFD_ASSERT (sreloc
!= NULL
);
4346 if (h
== NULL
|| h
->dynindx
== -1)
4351 outrel
.r_offset
= (input_section
->output_section
->vma
4352 + input_section
->output_offset
4354 outrel
.r_info
= ELF32_R_INFO (indx
, R_SH_TLS_TPOFF32
);
4356 outrel
.r_addend
= relocation
- dtpoff_base (info
);
4358 outrel
.r_addend
= 0;
4360 loc
= sreloc
->contents
;
4361 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4362 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4368 if (r
!= bfd_reloc_ok
)
4373 case bfd_reloc_outofrange
:
4375 case bfd_reloc_overflow
:
4383 name
= (bfd_elf_string_from_elf_section
4384 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
4388 name
= bfd_section_name (input_bfd
, sec
);
4390 if (! ((*info
->callbacks
->reloc_overflow
)
4391 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
4392 (bfd_vma
) 0, input_bfd
, input_section
,
4404 /* This is a version of bfd_generic_get_relocated_section_contents
4405 which uses sh_elf_relocate_section. */
4408 sh_elf_get_relocated_section_contents (bfd
*output_bfd
,
4409 struct bfd_link_info
*link_info
,
4410 struct bfd_link_order
*link_order
,
4412 bfd_boolean relocatable
,
4415 Elf_Internal_Shdr
*symtab_hdr
;
4416 asection
*input_section
= link_order
->u
.indirect
.section
;
4417 bfd
*input_bfd
= input_section
->owner
;
4418 asection
**sections
= NULL
;
4419 Elf_Internal_Rela
*internal_relocs
= NULL
;
4420 Elf_Internal_Sym
*isymbuf
= NULL
;
4422 /* We only need to handle the case of relaxing, or of having a
4423 particular set of section contents, specially. */
4425 || elf_section_data (input_section
)->this_hdr
.contents
== NULL
)
4426 return bfd_generic_get_relocated_section_contents (output_bfd
, link_info
,
4431 symtab_hdr
= &elf_symtab_hdr (input_bfd
);
4433 memcpy (data
, elf_section_data (input_section
)->this_hdr
.contents
,
4434 (size_t) input_section
->size
);
4436 if ((input_section
->flags
& SEC_RELOC
) != 0
4437 && input_section
->reloc_count
> 0)
4440 Elf_Internal_Sym
*isym
, *isymend
;
4443 internal_relocs
= (_bfd_elf_link_read_relocs
4444 (input_bfd
, input_section
, NULL
,
4445 (Elf_Internal_Rela
*) NULL
, FALSE
));
4446 if (internal_relocs
== NULL
)
4449 if (symtab_hdr
->sh_info
!= 0)
4451 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
4452 if (isymbuf
== NULL
)
4453 isymbuf
= bfd_elf_get_elf_syms (input_bfd
, symtab_hdr
,
4454 symtab_hdr
->sh_info
, 0,
4456 if (isymbuf
== NULL
)
4460 amt
= symtab_hdr
->sh_info
;
4461 amt
*= sizeof (asection
*);
4462 sections
= (asection
**) bfd_malloc (amt
);
4463 if (sections
== NULL
&& amt
!= 0)
4466 isymend
= isymbuf
+ symtab_hdr
->sh_info
;
4467 for (isym
= isymbuf
, secpp
= sections
; isym
< isymend
; ++isym
, ++secpp
)
4471 if (isym
->st_shndx
== SHN_UNDEF
)
4472 isec
= bfd_und_section_ptr
;
4473 else if (isym
->st_shndx
== SHN_ABS
)
4474 isec
= bfd_abs_section_ptr
;
4475 else if (isym
->st_shndx
== SHN_COMMON
)
4476 isec
= bfd_com_section_ptr
;
4478 isec
= bfd_section_from_elf_index (input_bfd
, isym
->st_shndx
);
4483 if (! sh_elf_relocate_section (output_bfd
, link_info
, input_bfd
,
4484 input_section
, data
, internal_relocs
,
4488 if (sections
!= NULL
)
4491 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
4493 if (elf_section_data (input_section
)->relocs
!= internal_relocs
)
4494 free (internal_relocs
);
4500 if (sections
!= NULL
)
4503 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
4505 if (internal_relocs
!= NULL
4506 && elf_section_data (input_section
)->relocs
!= internal_relocs
)
4507 free (internal_relocs
);
4511 /* Return the base VMA address which should be subtracted from real addresses
4512 when resolving @dtpoff relocation.
4513 This is PT_TLS segment p_vaddr. */
4516 dtpoff_base (struct bfd_link_info
*info
)
4518 /* If tls_sec is NULL, we should have signalled an error already. */
4519 if (elf_hash_table (info
)->tls_sec
== NULL
)
4521 return elf_hash_table (info
)->tls_sec
->vma
;
4524 /* Return the relocation value for R_SH_TLS_TPOFF32.. */
4527 tpoff (struct bfd_link_info
*info
, bfd_vma address
)
4529 /* If tls_sec is NULL, we should have signalled an error already. */
4530 if (elf_hash_table (info
)->tls_sec
== NULL
)
4532 /* SH TLS ABI is variant I and static TLS block start just after tcbhead
4533 structure which has 2 pointer fields. */
4534 return (address
- elf_hash_table (info
)->tls_sec
->vma
4535 + align_power ((bfd_vma
) 8,
4536 elf_hash_table (info
)->tls_sec
->alignment_power
));
4540 sh_elf_gc_mark_hook (asection
*sec
,
4541 struct bfd_link_info
*info
,
4542 Elf_Internal_Rela
*rel
,
4543 struct elf_link_hash_entry
*h
,
4544 Elf_Internal_Sym
*sym
)
4547 switch (ELF32_R_TYPE (rel
->r_info
))
4549 case R_SH_GNU_VTINHERIT
:
4550 case R_SH_GNU_VTENTRY
:
4554 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
4557 /* Update the got entry reference counts for the section being removed. */
4560 sh_elf_gc_sweep_hook (bfd
*abfd
, struct bfd_link_info
*info
,
4561 asection
*sec
, const Elf_Internal_Rela
*relocs
)
4563 Elf_Internal_Shdr
*symtab_hdr
;
4564 struct elf_link_hash_entry
**sym_hashes
;
4565 bfd_signed_vma
*local_got_refcounts
;
4566 const Elf_Internal_Rela
*rel
, *relend
;
4568 if (info
->relocatable
)
4571 elf_section_data (sec
)->local_dynrel
= NULL
;
4573 symtab_hdr
= &elf_symtab_hdr (abfd
);
4574 sym_hashes
= elf_sym_hashes (abfd
);
4575 local_got_refcounts
= elf_local_got_refcounts (abfd
);
4577 relend
= relocs
+ sec
->reloc_count
;
4578 for (rel
= relocs
; rel
< relend
; rel
++)
4580 unsigned long r_symndx
;
4581 unsigned int r_type
;
4582 struct elf_link_hash_entry
*h
= NULL
;
4583 #ifdef INCLUDE_SHMEDIA
4584 int seen_stt_datalabel
= 0;
4587 r_symndx
= ELF32_R_SYM (rel
->r_info
);
4588 if (r_symndx
>= symtab_hdr
->sh_info
)
4590 struct elf_sh_link_hash_entry
*eh
;
4591 struct elf_sh_dyn_relocs
**pp
;
4592 struct elf_sh_dyn_relocs
*p
;
4594 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4595 while (h
->root
.type
== bfd_link_hash_indirect
4596 || h
->root
.type
== bfd_link_hash_warning
)
4598 #ifdef INCLUDE_SHMEDIA
4599 seen_stt_datalabel
|= h
->type
== STT_DATALABEL
;
4601 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4603 eh
= (struct elf_sh_link_hash_entry
*) h
;
4604 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
4607 /* Everything must go for SEC. */
4613 r_type
= ELF32_R_TYPE (rel
->r_info
);
4614 switch (sh_elf_optimized_tls_reloc (info
, r_type
, h
!= NULL
))
4616 case R_SH_TLS_LD_32
:
4617 if (sh_elf_hash_table (info
)->tls_ldm_got
.refcount
> 0)
4618 sh_elf_hash_table (info
)->tls_ldm_got
.refcount
-= 1;
4624 #ifdef INCLUDE_SHMEDIA
4625 case R_SH_GOT_LOW16
:
4626 case R_SH_GOT_MEDLOW16
:
4627 case R_SH_GOT_MEDHI16
:
4631 case R_SH_GOTOFF_LOW16
:
4632 case R_SH_GOTOFF_MEDLOW16
:
4633 case R_SH_GOTOFF_MEDHI16
:
4634 case R_SH_GOTOFF_HI16
:
4635 case R_SH_GOTPC_LOW16
:
4636 case R_SH_GOTPC_MEDLOW16
:
4637 case R_SH_GOTPC_MEDHI16
:
4638 case R_SH_GOTPC_HI16
:
4640 case R_SH_TLS_GD_32
:
4641 case R_SH_TLS_IE_32
:
4644 #ifdef INCLUDE_SHMEDIA
4645 if (seen_stt_datalabel
)
4647 struct elf_sh_link_hash_entry
*eh
;
4648 eh
= (struct elf_sh_link_hash_entry
*) h
;
4649 if (eh
->datalabel_got
.refcount
> 0)
4650 eh
->datalabel_got
.refcount
-= 1;
4654 if (h
->got
.refcount
> 0)
4655 h
->got
.refcount
-= 1;
4657 else if (local_got_refcounts
!= NULL
)
4659 #ifdef INCLUDE_SHMEDIA
4660 if (rel
->r_addend
& 1)
4662 if (local_got_refcounts
[symtab_hdr
->sh_info
+ r_symndx
] > 0)
4663 local_got_refcounts
[symtab_hdr
->sh_info
+ r_symndx
] -= 1;
4667 if (local_got_refcounts
[r_symndx
] > 0)
4668 local_got_refcounts
[r_symndx
] -= 1;
4679 #ifdef INCLUDE_SHMEDIA
4680 case R_SH_PLT_LOW16
:
4681 case R_SH_PLT_MEDLOW16
:
4682 case R_SH_PLT_MEDHI16
:
4687 if (h
->plt
.refcount
> 0)
4688 h
->plt
.refcount
-= 1;
4693 #ifdef INCLUDE_SHMEDIA
4694 case R_SH_GOTPLT_LOW16
:
4695 case R_SH_GOTPLT_MEDLOW16
:
4696 case R_SH_GOTPLT_MEDHI16
:
4697 case R_SH_GOTPLT_HI16
:
4698 case R_SH_GOTPLT10BY4
:
4699 case R_SH_GOTPLT10BY8
:
4703 struct elf_sh_link_hash_entry
*eh
;
4704 eh
= (struct elf_sh_link_hash_entry
*) h
;
4705 if (eh
->gotplt_refcount
> 0)
4707 eh
->gotplt_refcount
-= 1;
4708 if (h
->plt
.refcount
> 0)
4709 h
->plt
.refcount
-= 1;
4711 #ifdef INCLUDE_SHMEDIA
4712 else if (seen_stt_datalabel
)
4714 if (eh
->datalabel_got
.refcount
> 0)
4715 eh
->datalabel_got
.refcount
-= 1;
4718 else if (h
->got
.refcount
> 0)
4719 h
->got
.refcount
-= 1;
4721 else if (local_got_refcounts
!= NULL
)
4723 #ifdef INCLUDE_SHMEDIA
4724 if (rel
->r_addend
& 1)
4726 if (local_got_refcounts
[symtab_hdr
->sh_info
+ r_symndx
] > 0)
4727 local_got_refcounts
[symtab_hdr
->sh_info
+ r_symndx
] -= 1;
4731 if (local_got_refcounts
[r_symndx
] > 0)
4732 local_got_refcounts
[r_symndx
] -= 1;
4744 /* Copy the extra info we tack onto an elf_link_hash_entry. */
4747 sh_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
4748 struct elf_link_hash_entry
*dir
,
4749 struct elf_link_hash_entry
*ind
)
4751 struct elf_sh_link_hash_entry
*edir
, *eind
;
4753 edir
= (struct elf_sh_link_hash_entry
*) dir
;
4754 eind
= (struct elf_sh_link_hash_entry
*) ind
;
4756 if (eind
->dyn_relocs
!= NULL
)
4758 if (edir
->dyn_relocs
!= NULL
)
4760 struct elf_sh_dyn_relocs
**pp
;
4761 struct elf_sh_dyn_relocs
*p
;
4763 /* Add reloc counts against the indirect sym to the direct sym
4764 list. Merge any entries against the same section. */
4765 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
; )
4767 struct elf_sh_dyn_relocs
*q
;
4769 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
4770 if (q
->sec
== p
->sec
)
4772 q
->pc_count
+= p
->pc_count
;
4773 q
->count
+= p
->count
;
4780 *pp
= edir
->dyn_relocs
;
4783 edir
->dyn_relocs
= eind
->dyn_relocs
;
4784 eind
->dyn_relocs
= NULL
;
4786 edir
->gotplt_refcount
= eind
->gotplt_refcount
;
4787 eind
->gotplt_refcount
= 0;
4788 #ifdef INCLUDE_SHMEDIA
4789 edir
->datalabel_got
.refcount
+= eind
->datalabel_got
.refcount
;
4790 eind
->datalabel_got
.refcount
= 0;
4793 if (ind
->root
.type
== bfd_link_hash_indirect
4794 && dir
->got
.refcount
<= 0)
4796 edir
->tls_type
= eind
->tls_type
;
4797 eind
->tls_type
= GOT_UNKNOWN
;
4800 if (ind
->root
.type
!= bfd_link_hash_indirect
4801 && dir
->dynamic_adjusted
)
4803 /* If called to transfer flags for a weakdef during processing
4804 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
4805 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
4806 dir
->ref_dynamic
|= ind
->ref_dynamic
;
4807 dir
->ref_regular
|= ind
->ref_regular
;
4808 dir
->ref_regular_nonweak
|= ind
->ref_regular_nonweak
;
4809 dir
->needs_plt
|= ind
->needs_plt
;
4812 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
4816 sh_elf_optimized_tls_reloc (struct bfd_link_info
*info
, int r_type
,
4824 case R_SH_TLS_GD_32
:
4825 case R_SH_TLS_IE_32
:
4827 return R_SH_TLS_LE_32
;
4828 return R_SH_TLS_IE_32
;
4829 case R_SH_TLS_LD_32
:
4830 return R_SH_TLS_LE_32
;
4836 /* Look through the relocs for a section during the first phase.
4837 Since we don't do .gots or .plts, we just need to consider the
4838 virtual table relocs for gc. */
4841 sh_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
4842 const Elf_Internal_Rela
*relocs
)
4844 Elf_Internal_Shdr
*symtab_hdr
;
4845 struct elf_link_hash_entry
**sym_hashes
;
4846 struct elf_sh_link_hash_table
*htab
;
4847 const Elf_Internal_Rela
*rel
;
4848 const Elf_Internal_Rela
*rel_end
;
4849 bfd_vma
*local_got_offsets
;
4853 unsigned int r_type
;
4854 int tls_type
, old_tls_type
;
4860 if (info
->relocatable
)
4863 BFD_ASSERT (is_sh_elf (abfd
));
4865 symtab_hdr
= &elf_symtab_hdr (abfd
);
4866 sym_hashes
= elf_sym_hashes (abfd
);
4868 htab
= sh_elf_hash_table (info
);
4869 local_got_offsets
= elf_local_got_offsets (abfd
);
4871 rel_end
= relocs
+ sec
->reloc_count
;
4872 for (rel
= relocs
; rel
< rel_end
; rel
++)
4874 struct elf_link_hash_entry
*h
;
4875 unsigned long r_symndx
;
4876 #ifdef INCLUDE_SHMEDIA
4877 int seen_stt_datalabel
= 0;
4880 r_symndx
= ELF32_R_SYM (rel
->r_info
);
4881 r_type
= ELF32_R_TYPE (rel
->r_info
);
4883 if (r_symndx
< symtab_hdr
->sh_info
)
4887 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
4888 while (h
->root
.type
== bfd_link_hash_indirect
4889 || h
->root
.type
== bfd_link_hash_warning
)
4891 #ifdef INCLUDE_SHMEDIA
4892 seen_stt_datalabel
|= h
->type
== STT_DATALABEL
;
4894 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4898 r_type
= sh_elf_optimized_tls_reloc (info
, r_type
, h
== NULL
);
4900 && r_type
== R_SH_TLS_IE_32
4902 && h
->root
.type
!= bfd_link_hash_undefined
4903 && h
->root
.type
!= bfd_link_hash_undefweak
4904 && (h
->dynindx
== -1
4906 r_type
= R_SH_TLS_LE_32
;
4908 /* Some relocs require a global offset table. */
4909 if (htab
->sgot
== NULL
)
4917 #ifdef INCLUDE_SHMEDIA
4918 case R_SH_GOTPLT_LOW16
:
4919 case R_SH_GOTPLT_MEDLOW16
:
4920 case R_SH_GOTPLT_MEDHI16
:
4921 case R_SH_GOTPLT_HI16
:
4922 case R_SH_GOTPLT10BY4
:
4923 case R_SH_GOTPLT10BY8
:
4924 case R_SH_GOT_LOW16
:
4925 case R_SH_GOT_MEDLOW16
:
4926 case R_SH_GOT_MEDHI16
:
4930 case R_SH_GOTOFF_LOW16
:
4931 case R_SH_GOTOFF_MEDLOW16
:
4932 case R_SH_GOTOFF_MEDHI16
:
4933 case R_SH_GOTOFF_HI16
:
4934 case R_SH_GOTPC_LOW16
:
4935 case R_SH_GOTPC_MEDLOW16
:
4936 case R_SH_GOTPC_MEDHI16
:
4937 case R_SH_GOTPC_HI16
:
4939 case R_SH_TLS_GD_32
:
4940 case R_SH_TLS_LD_32
:
4941 case R_SH_TLS_IE_32
:
4942 if (htab
->sgot
== NULL
)
4944 if (htab
->root
.dynobj
== NULL
)
4945 htab
->root
.dynobj
= abfd
;
4946 if (!create_got_section (htab
->root
.dynobj
, info
))
4958 /* This relocation describes the C++ object vtable hierarchy.
4959 Reconstruct it for later use during GC. */
4960 case R_SH_GNU_VTINHERIT
:
4961 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
4965 /* This relocation describes which C++ vtable entries are actually
4966 used. Record for later use during GC. */
4967 case R_SH_GNU_VTENTRY
:
4968 BFD_ASSERT (h
!= NULL
);
4970 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
4974 case R_SH_TLS_IE_32
:
4976 info
->flags
|= DF_STATIC_TLS
;
4980 case R_SH_TLS_GD_32
:
4982 #ifdef INCLUDE_SHMEDIA
4983 case R_SH_GOT_LOW16
:
4984 case R_SH_GOT_MEDLOW16
:
4985 case R_SH_GOT_MEDHI16
:
4993 tls_type
= GOT_NORMAL
;
4995 case R_SH_TLS_GD_32
:
4996 tls_type
= GOT_TLS_GD
;
4998 case R_SH_TLS_IE_32
:
4999 tls_type
= GOT_TLS_IE
;
5005 #ifdef INCLUDE_SHMEDIA
5006 if (seen_stt_datalabel
)
5008 struct elf_sh_link_hash_entry
*eh
5009 = (struct elf_sh_link_hash_entry
*) h
;
5011 eh
->datalabel_got
.refcount
+= 1;
5015 h
->got
.refcount
+= 1;
5016 old_tls_type
= sh_elf_hash_entry (h
)->tls_type
;
5020 bfd_signed_vma
*local_got_refcounts
;
5022 /* This is a global offset table entry for a local
5024 local_got_refcounts
= elf_local_got_refcounts (abfd
);
5025 if (local_got_refcounts
== NULL
)
5029 size
= symtab_hdr
->sh_info
;
5030 size
*= sizeof (bfd_signed_vma
);
5031 #ifdef INCLUDE_SHMEDIA
5032 /* Reserve space for both the datalabel and
5033 codelabel local GOT offsets. */
5036 size
+= symtab_hdr
->sh_info
;
5037 local_got_refcounts
= ((bfd_signed_vma
*)
5038 bfd_zalloc (abfd
, size
));
5039 if (local_got_refcounts
== NULL
)
5041 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
5042 #ifdef INCLUDE_SHMEDIA
5043 /* Take care of both the datalabel and codelabel local
5045 sh_elf_local_got_tls_type (abfd
)
5046 = (char *) (local_got_refcounts
+ 2 * symtab_hdr
->sh_info
);
5048 sh_elf_local_got_tls_type (abfd
)
5049 = (char *) (local_got_refcounts
+ symtab_hdr
->sh_info
);
5052 #ifdef INCLUDE_SHMEDIA
5053 if (rel
->r_addend
& 1)
5054 local_got_refcounts
[symtab_hdr
->sh_info
+ r_symndx
] += 1;
5057 local_got_refcounts
[r_symndx
] += 1;
5058 old_tls_type
= sh_elf_local_got_tls_type (abfd
) [r_symndx
];
5061 /* If a TLS symbol is accessed using IE at least once,
5062 there is no point to use dynamic model for it. */
5063 if (old_tls_type
!= tls_type
&& old_tls_type
!= GOT_UNKNOWN
5064 && (old_tls_type
!= GOT_TLS_GD
|| tls_type
!= GOT_TLS_IE
))
5066 if (old_tls_type
== GOT_TLS_IE
&& tls_type
== GOT_TLS_GD
)
5067 tls_type
= GOT_TLS_IE
;
5070 (*_bfd_error_handler
)
5071 (_("%B: `%s' accessed both as normal and thread local symbol"),
5072 abfd
, h
->root
.root
.string
);
5077 if (old_tls_type
!= tls_type
)
5080 sh_elf_hash_entry (h
)->tls_type
= tls_type
;
5082 sh_elf_local_got_tls_type (abfd
) [r_symndx
] = tls_type
;
5087 case R_SH_TLS_LD_32
:
5088 sh_elf_hash_table(info
)->tls_ldm_got
.refcount
+= 1;
5092 #ifdef INCLUDE_SHMEDIA
5093 case R_SH_GOTPLT_LOW16
:
5094 case R_SH_GOTPLT_MEDLOW16
:
5095 case R_SH_GOTPLT_MEDHI16
:
5096 case R_SH_GOTPLT_HI16
:
5097 case R_SH_GOTPLT10BY4
:
5098 case R_SH_GOTPLT10BY8
:
5100 /* If this is a local symbol, we resolve it directly without
5101 creating a procedure linkage table entry. */
5107 || h
->dynindx
== -1)
5111 h
->plt
.refcount
+= 1;
5112 ((struct elf_sh_link_hash_entry
*) h
)->gotplt_refcount
+= 1;
5117 #ifdef INCLUDE_SHMEDIA
5118 case R_SH_PLT_LOW16
:
5119 case R_SH_PLT_MEDLOW16
:
5120 case R_SH_PLT_MEDHI16
:
5123 /* This symbol requires a procedure linkage table entry. We
5124 actually build the entry in adjust_dynamic_symbol,
5125 because this might be a case of linking PIC code which is
5126 never referenced by a dynamic object, in which case we
5127 don't need to generate a procedure linkage table entry
5130 /* If this is a local symbol, we resolve it directly without
5131 creating a procedure linkage table entry. */
5135 if (h
->forced_local
)
5139 h
->plt
.refcount
+= 1;
5144 #ifdef INCLUDE_SHMEDIA
5145 case R_SH_IMM_LOW16_PCREL
:
5146 case R_SH_IMM_MEDLOW16_PCREL
:
5147 case R_SH_IMM_MEDHI16_PCREL
:
5148 case R_SH_IMM_HI16_PCREL
:
5150 if (h
!= NULL
&& ! info
->shared
)
5153 h
->plt
.refcount
+= 1;
5156 /* If we are creating a shared library, and this is a reloc
5157 against a global symbol, or a non PC relative reloc
5158 against a local symbol, then we need to copy the reloc
5159 into the shared library. However, if we are linking with
5160 -Bsymbolic, we do not need to copy a reloc against a
5161 global symbol which is defined in an object we are
5162 including in the link (i.e., DEF_REGULAR is set). At
5163 this point we have not seen all the input files, so it is
5164 possible that DEF_REGULAR is not set now but will be set
5165 later (it is never cleared). We account for that
5166 possibility below by storing information in the
5167 dyn_relocs field of the hash table entry. A similar
5168 situation occurs when creating shared libraries and symbol
5169 visibility changes render the symbol local.
5171 If on the other hand, we are creating an executable, we
5172 may need to keep relocations for symbols satisfied by a
5173 dynamic library if we manage to avoid copy relocs for the
5176 && (sec
->flags
& SEC_ALLOC
) != 0
5177 && (r_type
!= R_SH_REL32
5179 && (! info
->symbolic
5180 || h
->root
.type
== bfd_link_hash_defweak
5181 || !h
->def_regular
))))
5183 && (sec
->flags
& SEC_ALLOC
) != 0
5185 && (h
->root
.type
== bfd_link_hash_defweak
5186 || !h
->def_regular
)))
5188 struct elf_sh_dyn_relocs
*p
;
5189 struct elf_sh_dyn_relocs
**head
;
5191 if (htab
->root
.dynobj
== NULL
)
5192 htab
->root
.dynobj
= abfd
;
5194 /* When creating a shared object, we must copy these
5195 reloc types into the output file. We create a reloc
5196 section in dynobj and make room for this reloc. */
5201 name
= (bfd_elf_string_from_elf_section
5203 elf_elfheader (abfd
)->e_shstrndx
,
5204 elf_section_data (sec
)->rel_hdr
.sh_name
));
5208 BFD_ASSERT (CONST_STRNEQ (name
, ".rela")
5209 && strcmp (bfd_get_section_name (abfd
, sec
),
5212 sreloc
= bfd_get_section_by_name (htab
->root
.dynobj
, name
);
5217 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
5218 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
5219 if ((sec
->flags
& SEC_ALLOC
) != 0)
5220 flags
|= SEC_ALLOC
| SEC_LOAD
;
5221 sreloc
= bfd_make_section_with_flags (htab
->root
.dynobj
,
5225 || ! bfd_set_section_alignment (htab
->root
.dynobj
,
5229 elf_section_data (sec
)->sreloc
= sreloc
;
5232 /* If this is a global symbol, we count the number of
5233 relocations we need for this symbol. */
5235 head
= &((struct elf_sh_link_hash_entry
*) h
)->dyn_relocs
;
5241 /* Track dynamic relocs needed for local syms too. */
5242 s
= bfd_section_from_r_symndx (abfd
, &htab
->sym_sec
,
5247 vpp
= &elf_section_data (s
)->local_dynrel
;
5248 head
= (struct elf_sh_dyn_relocs
**) vpp
;
5252 if (p
== NULL
|| p
->sec
!= sec
)
5254 bfd_size_type amt
= sizeof (*p
);
5255 p
= bfd_alloc (htab
->root
.dynobj
, amt
);
5266 if (r_type
== R_SH_REL32
5267 #ifdef INCLUDE_SHMEDIA
5268 || r_type
== R_SH_IMM_LOW16_PCREL
5269 || r_type
== R_SH_IMM_MEDLOW16_PCREL
5270 || r_type
== R_SH_IMM_MEDHI16_PCREL
5271 || r_type
== R_SH_IMM_HI16_PCREL
5279 case R_SH_TLS_LE_32
:
5282 (*_bfd_error_handler
)
5283 (_("%B: TLS local exec code cannot be linked into shared objects"),
5290 case R_SH_TLS_LDO_32
:
5291 /* Nothing to do. */
5302 #ifndef sh_elf_set_mach_from_flags
5303 static unsigned int sh_ef_bfd_table
[] = { EF_SH_BFD_TABLE
};
5306 sh_elf_set_mach_from_flags (bfd
*abfd
)
5308 flagword flags
= elf_elfheader (abfd
)->e_flags
& EF_SH_MACH_MASK
;
5310 if (flags
>= sizeof(sh_ef_bfd_table
))
5313 if (sh_ef_bfd_table
[flags
] == 0)
5316 bfd_default_set_arch_mach (abfd
, bfd_arch_sh
, sh_ef_bfd_table
[flags
]);
5322 /* Reverse table lookup for sh_ef_bfd_table[].
5323 Given a bfd MACH value from archures.c
5324 return the equivalent ELF flags from the table.
5325 Return -1 if no match is found. */
5328 sh_elf_get_flags_from_mach (unsigned long mach
)
5330 int i
= ARRAY_SIZE (sh_ef_bfd_table
) - 1;
5333 if (sh_ef_bfd_table
[i
] == mach
)
5336 /* shouldn't get here */
5341 #endif /* not sh_elf_set_mach_from_flags */
5343 #ifndef sh_elf_set_private_flags
5344 /* Function to keep SH specific file flags. */
5347 sh_elf_set_private_flags (bfd
*abfd
, flagword flags
)
5349 BFD_ASSERT (! elf_flags_init (abfd
)
5350 || elf_elfheader (abfd
)->e_flags
== flags
);
5352 elf_elfheader (abfd
)->e_flags
= flags
;
5353 elf_flags_init (abfd
) = TRUE
;
5354 return sh_elf_set_mach_from_flags (abfd
);
5356 #endif /* not sh_elf_set_private_flags */
5358 #ifndef sh_elf_copy_private_data
5359 /* Copy backend specific data from one object module to another */
5362 sh_elf_copy_private_data (bfd
* ibfd
, bfd
* obfd
)
5364 /* Copy object attributes. */
5365 _bfd_elf_copy_obj_attributes (ibfd
, obfd
);
5367 if (! is_sh_elf (ibfd
) || ! is_sh_elf (obfd
))
5370 return sh_elf_set_private_flags (obfd
, elf_elfheader (ibfd
)->e_flags
);
5372 #endif /* not sh_elf_copy_private_data */
5374 #ifndef sh_elf_merge_private_data
5376 /* This function returns the ELF architecture number that
5377 corresponds to the given arch_sh* flags. */
5380 sh_find_elf_flags (unsigned int arch_set
)
5382 extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int);
5383 unsigned long bfd_mach
= sh_get_bfd_mach_from_arch_set (arch_set
);
5385 return sh_elf_get_flags_from_mach (bfd_mach
);
5388 /* This routine initialises the elf flags when required and
5389 calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */
5392 sh_elf_merge_private_data (bfd
*ibfd
, bfd
*obfd
)
5394 extern bfd_boolean
sh_merge_bfd_arch (bfd
*, bfd
*);
5396 if (! is_sh_elf (ibfd
) || ! is_sh_elf (obfd
))
5399 if (! elf_flags_init (obfd
))
5401 /* This happens when ld starts out with a 'blank' output file. */
5402 elf_flags_init (obfd
) = TRUE
;
5403 elf_elfheader (obfd
)->e_flags
= EF_SH1
;
5404 sh_elf_set_mach_from_flags (obfd
);
5407 if (! sh_merge_bfd_arch (ibfd
, obfd
))
5409 _bfd_error_handler ("%B: uses instructions which are incompatible "
5410 "with instructions used in previous modules",
5412 bfd_set_error (bfd_error_bad_value
);
5416 elf_elfheader (obfd
)->e_flags
=
5417 sh_elf_get_flags_from_mach (bfd_get_mach (obfd
));
5421 #endif /* not sh_elf_merge_private_data */
5423 /* Override the generic function because we need to store sh_elf_obj_tdata
5424 as the specific tdata. We set also the machine architecture from flags
5428 sh_elf_object_p (bfd
*abfd
)
5430 return sh_elf_set_mach_from_flags (abfd
);
5433 /* Finish up dynamic symbol handling. We set the contents of various
5434 dynamic sections here. */
5437 sh_elf_finish_dynamic_symbol (bfd
*output_bfd
, struct bfd_link_info
*info
,
5438 struct elf_link_hash_entry
*h
,
5439 Elf_Internal_Sym
*sym
)
5441 struct elf_sh_link_hash_table
*htab
;
5443 htab
= sh_elf_hash_table (info
);
5445 if (h
->plt
.offset
!= (bfd_vma
) -1)
5453 Elf_Internal_Rela rel
;
5456 /* This symbol has an entry in the procedure linkage table. Set
5459 BFD_ASSERT (h
->dynindx
!= -1);
5462 sgot
= htab
->sgotplt
;
5463 srel
= htab
->srelplt
;
5464 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srel
!= NULL
);
5466 /* Get the index in the procedure linkage table which
5467 corresponds to this symbol. This is the index of this symbol
5468 in all the symbols for which we are making plt entries. The
5469 first entry in the procedure linkage table is reserved. */
5470 plt_index
= get_plt_index (htab
->plt_info
, h
->plt
.offset
);
5472 /* Get the offset into the .got table of the entry that
5473 corresponds to this function. Each .got entry is 4 bytes.
5474 The first three are reserved. */
5475 got_offset
= (plt_index
+ 3) * 4;
5479 got_offset
-= GOT_BIAS
;
5482 /* Fill in the entry in the procedure linkage table. */
5483 memcpy (splt
->contents
+ h
->plt
.offset
,
5484 htab
->plt_info
->symbol_entry
,
5485 htab
->plt_info
->symbol_entry_size
);
5488 install_plt_field (output_bfd
, FALSE
, got_offset
,
5491 + htab
->plt_info
->symbol_fields
.got_entry
));
5494 install_plt_field (output_bfd
, FALSE
,
5495 (sgot
->output_section
->vma
5496 + sgot
->output_offset
5500 + htab
->plt_info
->symbol_fields
.got_entry
));
5501 if (htab
->vxworks_p
)
5503 unsigned int reachable_plts
, plts_per_4k
;
5506 /* Divide the PLT into groups. The first group contains
5507 REACHABLE_PLTS entries and the other groups contain
5508 PLTS_PER_4K entries. Entries in the first group can
5509 branch directly to .plt; those in later groups branch
5510 to the last element of the previous group. */
5511 /* ??? It would be better to create multiple copies of
5512 the common resolver stub. */
5513 reachable_plts
= ((4096
5514 - htab
->plt_info
->plt0_entry_size
5515 - (htab
->plt_info
->symbol_fields
.plt
+ 4))
5516 / htab
->plt_info
->symbol_entry_size
) + 1;
5517 plts_per_4k
= (4096 / htab
->plt_info
->symbol_entry_size
);
5518 if (plt_index
< reachable_plts
)
5519 distance
= -(h
->plt
.offset
5520 + htab
->plt_info
->symbol_fields
.plt
);
5522 distance
= -(((plt_index
- reachable_plts
) % plts_per_4k
+ 1)
5523 * htab
->plt_info
->symbol_entry_size
);
5525 /* Install the 'bra' with this offset. */
5526 bfd_put_16 (output_bfd
,
5527 0xa000 | (0x0fff & ((distance
- 4) / 2)),
5530 + htab
->plt_info
->symbol_fields
.plt
));
5533 install_plt_field (output_bfd
, TRUE
,
5534 splt
->output_section
->vma
+ splt
->output_offset
,
5537 + htab
->plt_info
->symbol_fields
.plt
));
5542 got_offset
+= GOT_BIAS
;
5545 install_plt_field (output_bfd
, FALSE
,
5546 plt_index
* sizeof (Elf32_External_Rela
),
5549 + htab
->plt_info
->symbol_fields
.reloc_offset
));
5551 /* Fill in the entry in the global offset table. */
5552 bfd_put_32 (output_bfd
,
5553 (splt
->output_section
->vma
5554 + splt
->output_offset
5556 + htab
->plt_info
->symbol_resolve_offset
),
5557 sgot
->contents
+ got_offset
);
5559 /* Fill in the entry in the .rela.plt section. */
5560 rel
.r_offset
= (sgot
->output_section
->vma
5561 + sgot
->output_offset
5563 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_JMP_SLOT
);
5566 rel
.r_addend
= GOT_BIAS
;
5568 loc
= srel
->contents
+ plt_index
* sizeof (Elf32_External_Rela
);
5569 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
5571 if (htab
->vxworks_p
&& !info
->shared
)
5573 /* Create the .rela.plt.unloaded relocations for this PLT entry.
5574 Begin by pointing LOC to the first such relocation. */
5575 loc
= (htab
->srelplt2
->contents
5576 + (plt_index
* 2 + 1) * sizeof (Elf32_External_Rela
));
5578 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation
5579 for the PLT entry's pointer to the .got.plt entry. */
5580 rel
.r_offset
= (htab
->splt
->output_section
->vma
5581 + htab
->splt
->output_offset
5583 + htab
->plt_info
->symbol_fields
.got_entry
);
5584 rel
.r_info
= ELF32_R_INFO (htab
->root
.hgot
->indx
, R_SH_DIR32
);
5585 rel
.r_addend
= got_offset
;
5586 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
5587 loc
+= sizeof (Elf32_External_Rela
);
5589 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for
5590 the .got.plt entry, which initially points to .plt. */
5591 rel
.r_offset
= (htab
->sgotplt
->output_section
->vma
5592 + htab
->sgotplt
->output_offset
5594 rel
.r_info
= ELF32_R_INFO (htab
->root
.hplt
->indx
, R_SH_DIR32
);
5596 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
5599 if (!h
->def_regular
)
5601 /* Mark the symbol as undefined, rather than as defined in
5602 the .plt section. Leave the value alone. */
5603 sym
->st_shndx
= SHN_UNDEF
;
5607 if (h
->got
.offset
!= (bfd_vma
) -1
5608 && sh_elf_hash_entry (h
)->tls_type
!= GOT_TLS_GD
5609 && sh_elf_hash_entry (h
)->tls_type
!= GOT_TLS_IE
)
5613 Elf_Internal_Rela rel
;
5616 /* This symbol has an entry in the global offset table. Set it
5620 srel
= htab
->srelgot
;
5621 BFD_ASSERT (sgot
!= NULL
&& srel
!= NULL
);
5623 rel
.r_offset
= (sgot
->output_section
->vma
5624 + sgot
->output_offset
5625 + (h
->got
.offset
&~ (bfd_vma
) 1));
5627 /* If this is a static link, or it is a -Bsymbolic link and the
5628 symbol is defined locally or was forced to be local because
5629 of a version file, we just want to emit a RELATIVE reloc.
5630 The entry in the global offset table will already have been
5631 initialized in the relocate_section function. */
5633 && SYMBOL_REFERENCES_LOCAL (info
, h
))
5635 rel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
5636 rel
.r_addend
= (h
->root
.u
.def
.value
5637 + h
->root
.u
.def
.section
->output_section
->vma
5638 + h
->root
.u
.def
.section
->output_offset
);
5642 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ h
->got
.offset
);
5643 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_GLOB_DAT
);
5647 loc
= srel
->contents
;
5648 loc
+= srel
->reloc_count
++ * sizeof (Elf32_External_Rela
);
5649 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
5652 #ifdef INCLUDE_SHMEDIA
5654 struct elf_sh_link_hash_entry
*eh
;
5656 eh
= (struct elf_sh_link_hash_entry
*) h
;
5657 if (eh
->datalabel_got
.offset
!= (bfd_vma
) -1)
5661 Elf_Internal_Rela rel
;
5664 /* This symbol has a datalabel entry in the global offset table.
5668 srel
= htab
->srelgot
;
5669 BFD_ASSERT (sgot
!= NULL
&& srel
!= NULL
);
5671 rel
.r_offset
= (sgot
->output_section
->vma
5672 + sgot
->output_offset
5673 + (eh
->datalabel_got
.offset
&~ (bfd_vma
) 1));
5675 /* If this is a static link, or it is a -Bsymbolic link and the
5676 symbol is defined locally or was forced to be local because
5677 of a version file, we just want to emit a RELATIVE reloc.
5678 The entry in the global offset table will already have been
5679 initialized in the relocate_section function. */
5681 && SYMBOL_REFERENCES_LOCAL (info
, h
))
5683 rel
.r_info
= ELF32_R_INFO (0, R_SH_RELATIVE
);
5684 rel
.r_addend
= (h
->root
.u
.def
.value
5685 + h
->root
.u
.def
.section
->output_section
->vma
5686 + h
->root
.u
.def
.section
->output_offset
);
5690 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
5691 + eh
->datalabel_got
.offset
);
5692 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_GLOB_DAT
);
5696 loc
= srel
->contents
;
5697 loc
+= srel
->reloc_count
++ * sizeof (Elf32_External_Rela
);
5698 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
5706 Elf_Internal_Rela rel
;
5709 /* This symbol needs a copy reloc. Set it up. */
5711 BFD_ASSERT (h
->dynindx
!= -1
5712 && (h
->root
.type
== bfd_link_hash_defined
5713 || h
->root
.type
== bfd_link_hash_defweak
));
5715 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
,
5717 BFD_ASSERT (s
!= NULL
);
5719 rel
.r_offset
= (h
->root
.u
.def
.value
5720 + h
->root
.u
.def
.section
->output_section
->vma
5721 + h
->root
.u
.def
.section
->output_offset
);
5722 rel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_SH_COPY
);
5724 loc
= s
->contents
+ s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
5725 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
5728 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks,
5729 _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
5731 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
5732 || (!htab
->vxworks_p
&& h
== htab
->root
.hgot
))
5733 sym
->st_shndx
= SHN_ABS
;
5738 /* Finish up the dynamic sections. */
5741 sh_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
5743 struct elf_sh_link_hash_table
*htab
;
5747 htab
= sh_elf_hash_table (info
);
5748 sgot
= htab
->sgotplt
;
5749 sdyn
= bfd_get_section_by_name (htab
->root
.dynobj
, ".dynamic");
5751 if (htab
->root
.dynamic_sections_created
)
5754 Elf32_External_Dyn
*dyncon
, *dynconend
;
5756 BFD_ASSERT (sgot
!= NULL
&& sdyn
!= NULL
);
5758 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
5759 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
5760 for (; dyncon
< dynconend
; dyncon
++)
5762 Elf_Internal_Dyn dyn
;
5764 #ifdef INCLUDE_SHMEDIA
5768 bfd_elf32_swap_dyn_in (htab
->root
.dynobj
, dyncon
, &dyn
);
5774 && elf_vxworks_finish_dynamic_entry (output_bfd
, &dyn
))
5775 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5778 #ifdef INCLUDE_SHMEDIA
5780 name
= info
->init_function
;
5784 name
= info
->fini_function
;
5786 if (dyn
.d_un
.d_val
!= 0)
5788 struct elf_link_hash_entry
*h
;
5790 h
= elf_link_hash_lookup (&htab
->root
, name
,
5791 FALSE
, FALSE
, TRUE
);
5792 if (h
!= NULL
&& (h
->other
& STO_SH5_ISA32
))
5794 dyn
.d_un
.d_val
|= 1;
5795 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5802 s
= htab
->sgot
->output_section
;
5806 s
= htab
->srelplt
->output_section
;
5808 BFD_ASSERT (s
!= NULL
);
5809 dyn
.d_un
.d_ptr
= s
->vma
;
5810 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5814 s
= htab
->srelplt
->output_section
;
5815 BFD_ASSERT (s
!= NULL
);
5816 dyn
.d_un
.d_val
= s
->size
;
5817 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5821 /* My reading of the SVR4 ABI indicates that the
5822 procedure linkage table relocs (DT_JMPREL) should be
5823 included in the overall relocs (DT_RELA). This is
5824 what Solaris does. However, UnixWare can not handle
5825 that case. Therefore, we override the DT_RELASZ entry
5826 here to make it not include the JMPREL relocs. Since
5827 the linker script arranges for .rela.plt to follow all
5828 other relocation sections, we don't have to worry
5829 about changing the DT_RELA entry. */
5830 if (htab
->srelplt
!= NULL
)
5832 s
= htab
->srelplt
->output_section
;
5833 dyn
.d_un
.d_val
-= s
->size
;
5835 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5840 /* Fill in the first entry in the procedure linkage table. */
5842 if (splt
&& splt
->size
> 0 && htab
->plt_info
->plt0_entry
)
5846 memcpy (splt
->contents
,
5847 htab
->plt_info
->plt0_entry
,
5848 htab
->plt_info
->plt0_entry_size
);
5849 for (i
= 0; i
< ARRAY_SIZE (htab
->plt_info
->plt0_got_fields
); i
++)
5850 if (htab
->plt_info
->plt0_got_fields
[i
] != MINUS_ONE
)
5851 install_plt_field (output_bfd
, FALSE
,
5852 (sgot
->output_section
->vma
5853 + sgot
->output_offset
5856 + htab
->plt_info
->plt0_got_fields
[i
]));
5858 if (htab
->vxworks_p
)
5860 /* Finalize the .rela.plt.unloaded contents. */
5861 Elf_Internal_Rela rel
;
5864 /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the
5865 first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */
5866 loc
= htab
->srelplt2
->contents
;
5867 rel
.r_offset
= (splt
->output_section
->vma
5868 + splt
->output_offset
5869 + htab
->plt_info
->plt0_got_fields
[2]);
5870 rel
.r_info
= ELF32_R_INFO (htab
->root
.hgot
->indx
, R_SH_DIR32
);
5872 bfd_elf32_swap_reloca_out (output_bfd
, &rel
, loc
);
5873 loc
+= sizeof (Elf32_External_Rela
);
5875 /* Fix up the remaining .rela.plt.unloaded relocations.
5876 They may have the wrong symbol index for _G_O_T_ or
5877 _P_L_T_ depending on the order in which symbols were
5879 while (loc
< htab
->srelplt2
->contents
+ htab
->srelplt2
->size
)
5881 /* The PLT entry's pointer to the .got.plt slot. */
5882 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
5883 rel
.r_info
= ELF32_R_INFO (htab
->root
.hgot
->indx
,
5885 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
5886 loc
+= sizeof (Elf32_External_Rela
);
5888 /* The .got.plt slot's pointer to .plt. */
5889 bfd_elf32_swap_reloc_in (output_bfd
, loc
, &rel
);
5890 rel
.r_info
= ELF32_R_INFO (htab
->root
.hplt
->indx
,
5892 bfd_elf32_swap_reloc_out (output_bfd
, &rel
, loc
);
5893 loc
+= sizeof (Elf32_External_Rela
);
5897 /* UnixWare sets the entsize of .plt to 4, although that doesn't
5898 really seem like the right value. */
5899 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
= 4;
5903 /* Fill in the first three entries in the global offset table. */
5904 if (sgot
&& sgot
->size
> 0)
5907 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
5909 bfd_put_32 (output_bfd
,
5910 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
5912 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
5913 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
5915 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
5921 static enum elf_reloc_type_class
5922 sh_elf_reloc_type_class (const Elf_Internal_Rela
*rela
)
5924 switch ((int) ELF32_R_TYPE (rela
->r_info
))
5927 return reloc_class_relative
;
5929 return reloc_class_plt
;
5931 return reloc_class_copy
;
5933 return reloc_class_normal
;
5937 #if !defined SH_TARGET_ALREADY_DEFINED
5938 /* Support for Linux core dump NOTE sections. */
5941 elf32_shlin_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
5946 switch (note
->descsz
)
5951 case 168: /* Linux/SH */
5953 elf_tdata (abfd
)->core_signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
5956 elf_tdata (abfd
)->core_pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
5965 /* Make a ".reg/999" section. */
5966 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
5967 size
, note
->descpos
+ offset
);
5971 elf32_shlin_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
5973 switch (note
->descsz
)
5978 case 124: /* Linux/SH elf_prpsinfo */
5979 elf_tdata (abfd
)->core_program
5980 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
5981 elf_tdata (abfd
)->core_command
5982 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
5985 /* Note that for some reason, a spurious space is tacked
5986 onto the end of the args in some (at least one anyway)
5987 implementations, so strip it off if it exists. */
5990 char *command
= elf_tdata (abfd
)->core_command
;
5991 int n
= strlen (command
);
5993 if (0 < n
&& command
[n
- 1] == ' ')
5994 command
[n
- 1] = '\0';
5999 #endif /* not SH_TARGET_ALREADY_DEFINED */
6002 /* Return address for Ith PLT stub in section PLT, for relocation REL
6003 or (bfd_vma) -1 if it should not be included. */
6006 sh_elf_plt_sym_val (bfd_vma i
, const asection
*plt
,
6007 const arelent
*rel ATTRIBUTE_UNUSED
)
6009 const struct elf_sh_plt_info
*plt_info
;
6011 plt_info
= get_plt_info (plt
->owner
, (plt
->owner
->flags
& DYNAMIC
) != 0);
6012 return plt
->vma
+ get_plt_offset (plt_info
, i
);
6015 #if !defined SH_TARGET_ALREADY_DEFINED
6016 #define TARGET_BIG_SYM bfd_elf32_sh_vec
6017 #define TARGET_BIG_NAME "elf32-sh"
6018 #define TARGET_LITTLE_SYM bfd_elf32_shl_vec
6019 #define TARGET_LITTLE_NAME "elf32-shl"
6022 #define ELF_ARCH bfd_arch_sh
6023 #define ELF_MACHINE_CODE EM_SH
6024 #ifdef __QNXTARGET__
6025 #define ELF_MAXPAGESIZE 0x1000
6027 #define ELF_MAXPAGESIZE 0x80
6030 #define elf_symbol_leading_char '_'
6032 #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup
6033 #define bfd_elf32_bfd_reloc_name_lookup \
6034 sh_elf_reloc_name_lookup
6035 #define elf_info_to_howto sh_elf_info_to_howto
6036 #define bfd_elf32_bfd_relax_section sh_elf_relax_section
6037 #define elf_backend_relocate_section sh_elf_relocate_section
6038 #define bfd_elf32_bfd_get_relocated_section_contents \
6039 sh_elf_get_relocated_section_contents
6040 #define bfd_elf32_mkobject sh_elf_mkobject
6041 #define elf_backend_object_p sh_elf_object_p
6042 #define bfd_elf32_bfd_set_private_bfd_flags \
6043 sh_elf_set_private_flags
6044 #define bfd_elf32_bfd_copy_private_bfd_data \
6045 sh_elf_copy_private_data
6046 #define bfd_elf32_bfd_merge_private_bfd_data \
6047 sh_elf_merge_private_data
6049 #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook
6050 #define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook
6051 #define elf_backend_check_relocs sh_elf_check_relocs
6052 #define elf_backend_copy_indirect_symbol \
6053 sh_elf_copy_indirect_symbol
6054 #define elf_backend_create_dynamic_sections \
6055 sh_elf_create_dynamic_sections
6056 #define bfd_elf32_bfd_link_hash_table_create \
6057 sh_elf_link_hash_table_create
6058 #define elf_backend_adjust_dynamic_symbol \
6059 sh_elf_adjust_dynamic_symbol
6060 #define elf_backend_always_size_sections \
6061 sh_elf_always_size_sections
6062 #define elf_backend_size_dynamic_sections \
6063 sh_elf_size_dynamic_sections
6064 #define elf_backend_omit_section_dynsym \
6065 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
6066 #define elf_backend_finish_dynamic_symbol \
6067 sh_elf_finish_dynamic_symbol
6068 #define elf_backend_finish_dynamic_sections \
6069 sh_elf_finish_dynamic_sections
6070 #define elf_backend_reloc_type_class sh_elf_reloc_type_class
6071 #define elf_backend_plt_sym_val sh_elf_plt_sym_val
6073 #define elf_backend_can_gc_sections 1
6074 #define elf_backend_can_refcount 1
6075 #define elf_backend_want_got_plt 1
6076 #define elf_backend_plt_readonly 1
6077 #define elf_backend_want_plt_sym 0
6078 #define elf_backend_got_header_size 12
6080 #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED
6082 #include "elf32-target.h"
6084 /* NetBSD support. */
6085 #undef TARGET_BIG_SYM
6086 #define TARGET_BIG_SYM bfd_elf32_shnbsd_vec
6087 #undef TARGET_BIG_NAME
6088 #define TARGET_BIG_NAME "elf32-sh-nbsd"
6089 #undef TARGET_LITTLE_SYM
6090 #define TARGET_LITTLE_SYM bfd_elf32_shlnbsd_vec
6091 #undef TARGET_LITTLE_NAME
6092 #define TARGET_LITTLE_NAME "elf32-shl-nbsd"
6093 #undef ELF_MAXPAGESIZE
6094 #define ELF_MAXPAGESIZE 0x10000
6095 #undef ELF_COMMONPAGESIZE
6096 #undef elf_symbol_leading_char
6097 #define elf_symbol_leading_char 0
6099 #define elf32_bed elf32_sh_nbsd_bed
6101 #include "elf32-target.h"
6104 /* Linux support. */
6105 #undef TARGET_BIG_SYM
6106 #define TARGET_BIG_SYM bfd_elf32_shblin_vec
6107 #undef TARGET_BIG_NAME
6108 #define TARGET_BIG_NAME "elf32-shbig-linux"
6109 #undef TARGET_LITTLE_SYM
6110 #define TARGET_LITTLE_SYM bfd_elf32_shlin_vec
6111 #undef TARGET_LITTLE_NAME
6112 #define TARGET_LITTLE_NAME "elf32-sh-linux"
6113 #undef ELF_COMMONPAGESIZE
6114 #define ELF_COMMONPAGESIZE 0x1000
6116 #undef elf_backend_grok_prstatus
6117 #define elf_backend_grok_prstatus elf32_shlin_grok_prstatus
6118 #undef elf_backend_grok_psinfo
6119 #define elf_backend_grok_psinfo elf32_shlin_grok_psinfo
6121 #define elf32_bed elf32_sh_lin_bed
6123 #include "elf32-target.h"
6125 #undef TARGET_BIG_SYM
6126 #define TARGET_BIG_SYM bfd_elf32_shvxworks_vec
6127 #undef TARGET_BIG_NAME
6128 #define TARGET_BIG_NAME "elf32-sh-vxworks"
6129 #undef TARGET_LITTLE_SYM
6130 #define TARGET_LITTLE_SYM bfd_elf32_shlvxworks_vec
6131 #undef TARGET_LITTLE_NAME
6132 #define TARGET_LITTLE_NAME "elf32-shl-vxworks"
6134 #define elf32_bed elf32_sh_vxworks_bed
6136 #undef elf_backend_want_plt_sym
6137 #define elf_backend_want_plt_sym 1
6138 #undef elf_symbol_leading_char
6139 #define elf_symbol_leading_char '_'
6140 #define elf_backend_want_got_underscore 1
6141 #undef elf_backend_grok_prstatus
6142 #undef elf_backend_grok_psinfo
6143 #undef elf_backend_add_symbol_hook
6144 #define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook
6145 #undef elf_backend_link_output_symbol_hook
6146 #define elf_backend_link_output_symbol_hook \
6147 elf_vxworks_link_output_symbol_hook
6148 #undef elf_backend_emit_relocs
6149 #define elf_backend_emit_relocs elf_vxworks_emit_relocs
6150 #undef elf_backend_final_write_processing
6151 #define elf_backend_final_write_processing \
6152 elf_vxworks_final_write_processing
6153 #undef ELF_MAXPAGESIZE
6154 #define ELF_MAXPAGESIZE 0x1000
6155 #undef ELF_COMMONPAGESIZE
6157 #include "elf32-target.h"
6159 #endif /* neither INCLUDE_SHMEDIA nor SH_TARGET_ALREADY_DEFINED */