1 /* Visium-specific support for 32-bit ELF.
3 Copyright (C) 2003-2015 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor,
20 Boston, MA 02110-1301, USA. */
27 #include "elf/visium.h"
29 static bfd_reloc_status_type visium_elf_howto_parity_reloc
30 (bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **);
32 static reloc_howto_type visium_elf_howto_table
[] = {
33 /* This reloc does nothing. */
34 HOWTO (R_VISIUM_NONE
, /* type */
36 3, /* size (0 = byte, 1 = short, 2 = long) */
38 FALSE
, /* pc_relative */
40 complain_overflow_dont
, /* complain_on_overflow */
41 bfd_elf_generic_reloc
, /* special_function */
42 "R_VISIUM_NONE", /* name */
43 FALSE
, /* partial_inplace */
46 FALSE
), /* pcrel_offset */
48 /* A 8 bit absolute relocation. */
49 HOWTO (R_VISIUM_8
, /* type */
51 0, /* size (0 = byte, 1 = short, 2 = long) */
53 FALSE
, /* pc_relative */
55 complain_overflow_bitfield
, /* complain_on_overflow */
56 bfd_elf_generic_reloc
, /* special_function */
57 "R_VISIUM_8", /* name */
58 FALSE
, /* partial_inplace */
61 FALSE
), /* pcrel_offset */
63 /* A 16 bit absolute relocation. */
64 HOWTO (R_VISIUM_16
, /* type */
66 1, /* size (0 = byte, 1 = short, 2 = long) */
68 FALSE
, /* pc_relative */
70 complain_overflow_bitfield
, /* complain_on_overflow */
71 bfd_elf_generic_reloc
, /* special_function */
72 "R_VISIUM_16", /* name */
73 FALSE
, /* partial_inplace */
74 0x0000, /* src_mask */
75 0xffff, /* dst_mask */
76 FALSE
), /* pcrel_offset */
78 /* A 32 bit absolute relocation. */
79 HOWTO (R_VISIUM_32
, /* type */
81 2, /* size (0 = byte, 1 = short, 2 = long) */
83 FALSE
, /* pc_relative */
85 complain_overflow_bitfield
, /* complain_on_overflow */
86 bfd_elf_generic_reloc
, /* special_function */
87 "R_VISIUM_32", /* name */
88 FALSE
, /* partial_inplace */
89 0x00000000, /* src_mask */
90 0xffffffff, /* dst_mask */
91 FALSE
), /* pcrel_offset */
94 /* A 8 bit PC relative relocation. */
95 HOWTO (R_VISIUM_8_PCREL
, /* type */
97 0, /* size (0 = byte, 1 = short, 2 = long) */
99 TRUE
, /* pc_relative */
101 complain_overflow_bitfield
, /* complain_on_overflow */
102 bfd_elf_generic_reloc
, /* special_function */
103 "R_VISIUM_8_PCREL", /* name */
104 FALSE
, /* partial_inplace */
107 TRUE
), /* pcrel_offset */
109 /* A 16 bit PC relative relocation. */
110 HOWTO (R_VISIUM_16_PCREL
, /* type */
112 1, /* size (0 = byte, 1 = short, 2 = long) */
114 TRUE
, /* pc_relative */
116 complain_overflow_bitfield
, /* complain_on_overflow */
117 bfd_elf_generic_reloc
, /* special_function */
118 "R_VISIUM_16_PCREL", /* name */
119 FALSE
, /* partial inplace */
120 0x0000, /* src_mask */
121 0xffff, /* dst_mask */
122 TRUE
), /* pcrel_offset */
124 /* A 32-bit PC relative relocation. */
125 HOWTO (R_VISIUM_32_PCREL
, /* type */
127 2, /* size (0 = byte, 1 = short, 2 = long) */
129 TRUE
, /* pc_relative */
131 complain_overflow_bitfield
, /* complain_on_overflow */
132 bfd_elf_generic_reloc
, /* special_function */
133 "R_VISIUM_32_PCREL", /* name */
134 FALSE
, /* partial_inplace */
136 0xffffffff, /* dst_mask */
137 TRUE
), /* pcrel_offset */
139 /* A 16-bit PC word relative offset, relative to start of instruction
140 and always in the second half of the instruction. */
141 HOWTO (R_VISIUM_PC16
, /* type */
143 2, /* size (0 = byte, 1 = short, 2 = long) */
145 TRUE
, /* pc_relative */
147 complain_overflow_signed
, /* complain_on_overflow */
148 visium_elf_howto_parity_reloc
, /* special_function */
149 "R_VISIUM_PC16", /* name */
150 FALSE
, /* partial_inplace */
151 0x00000000, /* src_mask */
152 0x0000ffff, /* dst_mask */
153 TRUE
), /* pcrel_offset */
155 /* The high 16 bits of symbol value. */
156 HOWTO (R_VISIUM_HI16
, /* type */
158 2, /* size (0 = byte, 1 = short, 2 = long) */
160 FALSE
, /* pc_relative */
162 complain_overflow_dont
, /* complain_on_overflow */
163 visium_elf_howto_parity_reloc
, /* special_function */
164 "R_VISIUM_HI16", /* name */
165 FALSE
, /* partial_inplace */
166 0x00000000, /* src_mask */
167 0x0000ffff, /* dst_mask */
168 FALSE
), /* pcrel_offset */
170 /* The low 16 bits of symbol value. */
171 HOWTO (R_VISIUM_LO16
, /* type */
173 2, /* size (0 = byte, 1 = short, 2 = long) */
175 FALSE
, /* pc_relative */
177 complain_overflow_dont
, /* complain_on_overflow */
178 visium_elf_howto_parity_reloc
, /* special_function */
179 "R_VISIUM_LO16", /* name */
180 FALSE
, /* partial_inplace */
181 0x00000000, /* src_mask */
182 0x0000ffff, /* dst_mask */
183 FALSE
), /* pcrel_offset */
185 /* A 16 bit immediate value. */
186 HOWTO (R_VISIUM_IM16
, /* type */
188 2, /* size (0 = byte, 1 = short, 2 = long) */
190 FALSE
, /* pc_relative */
192 complain_overflow_unsigned
, /* complain_on_overflow */
193 visium_elf_howto_parity_reloc
, /* special_function */
194 "R_VISIUM_IM16", /* name */
195 FALSE
, /* partial_inplace */
196 0x0000000, /* src_mask */
197 0x000ffff, /* dst_mask */
198 FALSE
), /* pcrel_offset */
200 /* The high 16 bits of symbol value, pc relative. */
201 HOWTO (R_VISIUM_HI16_PCREL
, /* type */
203 2, /* size (0 = byte, 1 = short, 2 = long) */
205 TRUE
, /* pc_relative */
207 complain_overflow_dont
, /* complain_on_overflow */
208 visium_elf_howto_parity_reloc
, /* special_function */
209 "R_VISIUM_HI16_PCREL", /* name */
210 FALSE
, /* partial_inplace */
211 0x00000000, /* src_mask */
212 0x0000ffff, /* dst_mask */
213 TRUE
), /* pcrel_offset */
215 /* The low 16 bits of symbol value, pc relative. */
216 HOWTO (R_VISIUM_LO16_PCREL
, /* type */
218 2, /* size (0 = byte, 1 = short, 2 = long) */
220 TRUE
, /* pc_relative */
222 complain_overflow_dont
, /* complain_on_overflow */
223 visium_elf_howto_parity_reloc
, /* special_function */
224 "R_VISIUM_LO16_PCREL", /* name */
225 FALSE
, /* partial_inplace */
226 0x00000000, /* src_mask */
227 0x0000ffff, /* dst_mask */
228 TRUE
), /* pcrel_offset */
230 /* A 16 bit immediate value, pc relative. */
231 HOWTO (R_VISIUM_IM16_PCREL
, /* type */
233 2, /* size (0 = byte, 1 = short, 2 = long) */
235 TRUE
, /* pc_relative */
237 complain_overflow_unsigned
, /* complain_on_overflow */
238 visium_elf_howto_parity_reloc
, /* special_function */
239 "R_VISIUM_IM16_PCREL", /* name */
240 FALSE
, /* partial_inplace */
241 0x0000000, /* src_mask */
242 0x000ffff, /* dst_mask */
243 TRUE
), /* pcrel_offset */
247 /* GNU extension to record C++ vtable hierarchy. */
248 static reloc_howto_type visium_elf_vtinherit_howto
=
249 HOWTO (R_VISIUM_GNU_VTINHERIT
, /* type */
251 2, /* size (0 = byte, 1 = short, 2 = long) */
253 FALSE
, /* pc_relative */
255 complain_overflow_dont
, /* complain_on_overflow */
256 NULL
, /* special_function */
257 "R_VISIUM_GNU_VTINHERIT", /* name */
258 FALSE
, /* partial_inplace */
261 FALSE
); /* pcrel_offset */
263 /* GNU extension to record C++ vtable member usage. */
264 static reloc_howto_type visium_elf_vtentry_howto
=
265 HOWTO (R_VISIUM_GNU_VTENTRY
, /* type */
267 2, /* size (0 = byte, 1 = short, 2 = long) */
269 FALSE
, /* pc_relative */
271 complain_overflow_dont
, /* complain_on_overflow */
272 NULL
, /* special_function */
273 "R_VISIUM_GNU_VTENTRY", /* name */
274 FALSE
, /* partial_inplace */
277 FALSE
); /* pcrel_offset */
279 /* Map BFD reloc types to VISIUM ELF reloc types. */
280 struct visium_reloc_map
282 bfd_reloc_code_real_type bfd_reloc_val
;
283 unsigned int visium_reloc_val
;
286 static const struct visium_reloc_map visium_reloc_map
[] = {
287 {BFD_RELOC_NONE
, R_VISIUM_NONE
},
288 {BFD_RELOC_8
, R_VISIUM_8
},
289 {BFD_RELOC_16
, R_VISIUM_16
},
290 {BFD_RELOC_32
, R_VISIUM_32
},
291 {BFD_RELOC_8_PCREL
, R_VISIUM_8_PCREL
},
292 {BFD_RELOC_16_PCREL
, R_VISIUM_16_PCREL
},
293 {BFD_RELOC_32_PCREL
, R_VISIUM_32_PCREL
},
294 {BFD_RELOC_VISIUM_REL16
, R_VISIUM_PC16
},
295 {BFD_RELOC_VISIUM_HI16
, R_VISIUM_HI16
},
296 {BFD_RELOC_VISIUM_LO16
, R_VISIUM_LO16
},
297 {BFD_RELOC_VISIUM_IM16
, R_VISIUM_IM16
},
298 {BFD_RELOC_VISIUM_HI16_PCREL
, R_VISIUM_HI16_PCREL
},
299 {BFD_RELOC_VISIUM_LO16_PCREL
, R_VISIUM_LO16_PCREL
},
300 {BFD_RELOC_VISIUM_IM16_PCREL
, R_VISIUM_IM16_PCREL
},
301 {BFD_RELOC_VTABLE_INHERIT
, R_VISIUM_GNU_VTINHERIT
},
302 {BFD_RELOC_VTABLE_ENTRY
, R_VISIUM_GNU_VTENTRY
},
305 /* Return the parity bit for INSN shifted to its final position. */
308 visium_parity_bit (bfd_vma insn
)
313 for (i
= 0; i
< 31; i
++)
322 /* This "special function" will only be used when the input and
323 output files have different formats ie. when generating S-records
324 directly using "--oformat srec". Otherwise we use
325 _bfd_final_link_relocate which uses a howto structure, but does
326 not use the special_function field.
328 It sets instruction parity to even. This cannot be done by a howto. */
330 static bfd_reloc_status_type
331 visium_elf_howto_parity_reloc (bfd
* input_bfd
, arelent
*reloc_entry
,
332 asymbol
*symbol
, PTR data
,
333 asection
*input_section
, bfd
*output_bfd
,
334 char **error_message ATTRIBUTE_UNUSED
)
336 bfd_reloc_status_type ret
;
338 bfd_byte
*inplace_address
;
340 const bfd_vma signmask
= 0xffff8000;
342 /* This part is from bfd_elf_generic_reloc.
343 If we're relocating, and this an external symbol, we don't want
344 to change anything. */
345 if (output_bfd
!= (bfd
*) NULL
&& (symbol
->flags
& BSF_SECTION_SYM
) == 0)
347 reloc_entry
->address
+= input_section
->output_offset
;
351 /* Now do the reloc in the usual way. */
353 /* Sanity check the address (offset in section). */
354 if (reloc_entry
->address
> bfd_get_section_limit (input_bfd
, input_section
))
355 return bfd_reloc_outofrange
;
358 if (bfd_is_und_section (symbol
->section
) && output_bfd
== (bfd
*) NULL
)
359 ret
= bfd_reloc_undefined
;
361 if (bfd_is_com_section (symbol
->section
) || output_bfd
!= (bfd
*) NULL
)
364 relocation
= symbol
->value
;
366 /* Only do this for a final link. */
367 if (output_bfd
== (bfd
*) NULL
)
369 relocation
+= symbol
->section
->output_section
->vma
;
370 relocation
+= symbol
->section
->output_offset
;
373 relocation
+= reloc_entry
->addend
;
374 inplace_address
= (bfd_byte
*) data
+ reloc_entry
->address
;
375 insn
= bfd_get_32 (input_bfd
, inplace_address
);
377 if (reloc_entry
->howto
->pc_relative
)
379 relocation
-= input_section
->output_section
->vma
380 + input_section
->output_offset
;
381 relocation
-= reloc_entry
->address
;
384 switch (reloc_entry
->howto
->type
)
388 if (ret
== bfd_reloc_ok
&& (relocation
& signmask
) != 0
389 && (relocation
& signmask
) != signmask
)
390 ret
= bfd_reloc_overflow
;
391 relocation
&= 0xffff;
394 case R_VISIUM_HI16_PCREL
:
395 relocation
= (relocation
>> 16) & 0xffff;
398 case R_VISIUM_LO16_PCREL
:
399 relocation
&= 0xffff;
402 case R_VISIUM_IM16_PCREL
:
403 if (ret
== bfd_reloc_ok
&& (relocation
& 0xffff0000) != 0)
404 ret
= bfd_reloc_overflow
;
405 relocation
&= 0xffff;
408 insn
= (insn
& 0x7fff0000) | relocation
;
409 insn
|= visium_parity_bit (insn
);
410 bfd_put_32 (input_bfd
, insn
, inplace_address
);
412 if (output_bfd
!= (bfd
*) NULL
)
413 reloc_entry
->address
+= input_section
->output_offset
;
418 static reloc_howto_type
*
419 visium_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
420 bfd_reloc_code_real_type code
)
422 /* Note that the visium_elf_howto_table is indexed by the R_
423 constants. Thus, the order that the howto records appear in the
424 table *must* match the order of the relocation types defined in
425 include/elf/visium.h. */
429 return &visium_elf_howto_table
[(int) R_VISIUM_NONE
];
431 return &visium_elf_howto_table
[(int) R_VISIUM_8
];
433 return &visium_elf_howto_table
[(int) R_VISIUM_16
];
435 return &visium_elf_howto_table
[(int) R_VISIUM_32
];
436 case BFD_RELOC_8_PCREL
:
437 return &visium_elf_howto_table
[(int) R_VISIUM_8_PCREL
];
438 case BFD_RELOC_16_PCREL
:
439 return &visium_elf_howto_table
[(int) R_VISIUM_16_PCREL
];
440 case BFD_RELOC_32_PCREL
:
441 return &visium_elf_howto_table
[(int) R_VISIUM_32_PCREL
];
442 case BFD_RELOC_VISIUM_REL16
:
443 return &visium_elf_howto_table
[(int) R_VISIUM_PC16
];
444 case BFD_RELOC_VISIUM_HI16
:
445 return &visium_elf_howto_table
[(int) R_VISIUM_HI16
];
446 case BFD_RELOC_VISIUM_LO16
:
447 return &visium_elf_howto_table
[(int) R_VISIUM_LO16
];
448 case BFD_RELOC_VISIUM_IM16
:
449 return &visium_elf_howto_table
[(int) R_VISIUM_IM16
];
450 case BFD_RELOC_VISIUM_HI16_PCREL
:
451 return &visium_elf_howto_table
[(int) R_VISIUM_HI16_PCREL
];
452 case BFD_RELOC_VISIUM_LO16_PCREL
:
453 return &visium_elf_howto_table
[(int) R_VISIUM_LO16_PCREL
];
454 case BFD_RELOC_VISIUM_IM16_PCREL
:
455 return &visium_elf_howto_table
[(int) R_VISIUM_IM16_PCREL
];
456 case BFD_RELOC_VTABLE_INHERIT
:
457 return &visium_elf_vtinherit_howto
;
458 case BFD_RELOC_VTABLE_ENTRY
:
459 return &visium_elf_vtentry_howto
;
465 static reloc_howto_type
*
466 visium_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
, const char *r_name
)
471 i
< (sizeof (visium_elf_howto_table
)
472 / sizeof (visium_elf_howto_table
[0])); i
++)
473 if (visium_elf_howto_table
[i
].name
!= NULL
474 && strcasecmp (visium_elf_howto_table
[i
].name
, r_name
) == 0)
475 return &visium_elf_howto_table
[i
];
477 if (strcasecmp (visium_elf_vtinherit_howto
.name
, r_name
) == 0)
478 return &visium_elf_vtinherit_howto
;
479 if (strcasecmp (visium_elf_vtentry_howto
.name
, r_name
) == 0)
480 return &visium_elf_vtentry_howto
;
485 /* Set the howto pointer for a VISIUM ELF reloc. */
488 visium_info_to_howto_rela (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
489 Elf_Internal_Rela
*dst
)
491 unsigned int r_type
= ELF32_R_TYPE (dst
->r_info
);
495 case R_VISIUM_GNU_VTINHERIT
:
496 cache_ptr
->howto
= &visium_elf_vtinherit_howto
;
499 case R_VISIUM_GNU_VTENTRY
:
500 cache_ptr
->howto
= &visium_elf_vtentry_howto
;
504 if (r_type
>= (unsigned int) R_VISIUM_max
)
506 _bfd_error_handler (_("%B: invalid Visium reloc number: %d"), abfd
, r_type
);
509 cache_ptr
->howto
= &visium_elf_howto_table
[r_type
];
514 /* Look through the relocs for a section during the first phase.
515 Since we don't do .gots or .plts, we just need to consider the
516 virtual table relocs for gc. */
519 visium_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
520 asection
*sec
, const Elf_Internal_Rela
*relocs
)
522 Elf_Internal_Shdr
*symtab_hdr
;
523 struct elf_link_hash_entry
**sym_hashes
;
524 const Elf_Internal_Rela
*rel
;
525 const Elf_Internal_Rela
*rel_end
;
527 if (info
->relocatable
)
530 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
531 sym_hashes
= elf_sym_hashes (abfd
);
533 rel_end
= relocs
+ sec
->reloc_count
;
534 for (rel
= relocs
; rel
< rel_end
; rel
++)
536 struct elf_link_hash_entry
*h
;
537 unsigned long r_symndx
;
539 r_symndx
= ELF32_R_SYM (rel
->r_info
);
540 if (r_symndx
< symtab_hdr
->sh_info
)
544 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
545 while (h
->root
.type
== bfd_link_hash_indirect
546 || h
->root
.type
== bfd_link_hash_warning
)
547 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
550 switch (ELF32_R_TYPE (rel
->r_info
))
552 /* This relocation describes the C++ object vtable hierarchy.
553 Reconstruct it for later use during GC. */
554 case R_VISIUM_GNU_VTINHERIT
:
555 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
559 /* This relocation describes which C++ vtable entries are actually
560 used. Record for later use during GC. */
561 case R_VISIUM_GNU_VTENTRY
:
562 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
571 /* Relocate a VISIUM ELF section. */
574 visium_elf_relocate_section (bfd
*output_bfd
,
575 struct bfd_link_info
*info
, bfd
*input_bfd
,
576 asection
*input_section
, bfd_byte
*contents
,
577 Elf_Internal_Rela
*relocs
,
578 Elf_Internal_Sym
*local_syms
,
579 asection
**local_sections
)
581 Elf_Internal_Shdr
*symtab_hdr
;
582 struct elf_link_hash_entry
**sym_hashes
;
583 Elf_Internal_Rela
*rel
;
584 Elf_Internal_Rela
*relend
;
586 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
587 sym_hashes
= elf_sym_hashes (input_bfd
);
588 relend
= relocs
+ input_section
->reloc_count
;
590 for (rel
= relocs
; rel
< relend
; rel
++)
592 reloc_howto_type
*howto
;
593 unsigned long r_symndx
;
594 Elf_Internal_Sym
*sym
;
596 struct elf_link_hash_entry
*h
;
598 bfd_reloc_status_type r
;
599 const char *name
= NULL
;
603 r_type
= ELF32_R_TYPE (rel
->r_info
);
605 if (r_type
== R_VISIUM_GNU_VTINHERIT
|| r_type
== R_VISIUM_GNU_VTENTRY
)
608 r_symndx
= ELF32_R_SYM (rel
->r_info
);
610 howto
= visium_elf_howto_table
+ ELF32_R_TYPE (rel
->r_info
);
615 if (r_symndx
< symtab_hdr
->sh_info
)
617 /* This is a local symbol. */
618 sym
= local_syms
+ r_symndx
;
619 sec
= local_sections
[r_symndx
];
620 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
622 name
= bfd_elf_string_from_elf_section
623 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
624 name
= (name
== NULL
) ? bfd_section_name (input_bfd
, sec
) : name
;
628 bfd_boolean unresolved_reloc
;
629 bfd_boolean warned
, ignored
;
631 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
632 r_symndx
, symtab_hdr
, sym_hashes
,
634 unresolved_reloc
, warned
, ignored
);
636 name
= h
->root
.root
.string
;
639 if (sec
!= NULL
&& discarded_section (sec
))
641 /* For relocs against symbols from removed linkonce sections,
642 or sections discarded by a linker script, we just want the
643 section contents zeroed. Avoid any special processing. */
644 _bfd_clear_contents (howto
, input_bfd
, input_section
,
645 contents
+ rel
->r_offset
);
652 if (info
->relocatable
)
661 case R_VISIUM_HI16_PCREL
:
662 case R_VISIUM_LO16_PCREL
:
663 case R_VISIUM_IM16_PCREL
:
664 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
665 contents
, rel
->r_offset
,
666 relocation
, rel
->r_addend
);
668 /* For instruction relocations, the parity needs correcting. */
669 if (r
== bfd_reloc_ok
)
671 insn
= bfd_get_32 (input_bfd
, contents
+ rel
->r_offset
);
672 insn
= (insn
& 0x7fffffff) | visium_parity_bit (insn
);
673 bfd_put_32 (input_bfd
, insn
, contents
+ rel
->r_offset
);
678 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
679 contents
, rel
->r_offset
,
680 relocation
, rel
->r_addend
);
684 if (r
!= bfd_reloc_ok
)
686 const char *msg
= (const char *) NULL
;
690 case bfd_reloc_overflow
:
691 r
= info
->callbacks
->reloc_overflow
692 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
, (bfd_vma
) 0,
693 input_bfd
, input_section
, rel
->r_offset
);
696 case bfd_reloc_undefined
:
697 r
= info
->callbacks
->undefined_symbol
698 (info
, name
, input_bfd
, input_section
, rel
->r_offset
, TRUE
);
701 case bfd_reloc_outofrange
:
702 msg
= _("internal error: out of range error");
705 case bfd_reloc_notsupported
:
706 msg
= _("internal error: unsupported relocation error");
709 case bfd_reloc_dangerous
:
710 msg
= _("internal error: dangerous relocation");
714 msg
= _("internal error: unknown error");
719 r
= info
->callbacks
->warning
720 (info
, msg
, name
, input_bfd
, input_section
, rel
->r_offset
);
730 /* This function is called during section gc to discover the section a
731 to which a particular relocation refers. Return the section that
732 should be marked against GC for a given relocation. */
735 visium_elf_gc_mark_hook (asection
*sec
, struct bfd_link_info
*info
,
736 Elf_Internal_Rela
*rel
, struct elf_link_hash_entry
*h
,
737 Elf_Internal_Sym
*sym
)
740 switch (ELF32_R_TYPE (rel
->r_info
))
742 case R_VISIUM_GNU_VTINHERIT
:
743 case R_VISIUM_GNU_VTENTRY
:
747 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
751 visium_elf_post_process_headers (bfd
*abfd
,
752 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
754 Elf_Internal_Ehdr
*i_ehdrp
= elf_elfheader (abfd
);
755 i_ehdrp
->e_ident
[EI_OSABI
] = ELFOSABI_STANDALONE
;
756 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
759 /* Function to set the ELF flag bits. */
762 visium_elf_set_private_flags (bfd
*abfd
, flagword flags
)
764 elf_elfheader (abfd
)->e_flags
= flags
;
765 elf_flags_init (abfd
) = TRUE
;
769 /* Copy backend specific data from one object module to another. */
772 visium_elf_copy_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
774 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
775 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
778 BFD_ASSERT (!elf_flags_init (obfd
)
779 || elf_elfheader (obfd
)->e_flags
==
780 elf_elfheader (ibfd
)->e_flags
);
782 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
783 elf_flags_init (obfd
) = TRUE
;
785 /* Copy object attributes. */
786 _bfd_elf_copy_obj_attributes (ibfd
, obfd
);
791 /* Merge backend specific data from an object
792 file to the output object file when linking. */
795 visium_elf_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
800 const char *opt_arch
= NULL
;
801 const char *new_opt_with
= NULL
;
802 const char *old_opt_with
= NULL
;
803 const char *with
= "with";
804 const char *without
= "without";
805 const char *mcm
= "mcm";
806 const char *mcm24
= "mcm24";
807 const char *gr6
= "gr6";
809 new_flags
= elf_elfheader (ibfd
)->e_flags
;
810 old_flags
= elf_elfheader (obfd
)->e_flags
;
812 if (!elf_flags_init (obfd
))
814 /* First call, no flags set. */
815 elf_flags_init (obfd
) = TRUE
;
816 elf_elfheader (obfd
)->e_flags
= new_flags
;
820 mismatch
= (new_flags
^ old_flags
)
821 & (EF_VISIUM_ARCH_MCM
| EF_VISIUM_ARCH_MCM24
| EF_VISIUM_ARCH_GR6
);
822 if (mismatch
& EF_VISIUM_ARCH_GR6
)
825 new_opt_with
= new_flags
& EF_VISIUM_ARCH_GR6
? with
: without
;
826 old_opt_with
= old_flags
& EF_VISIUM_ARCH_GR6
? with
: without
;
828 else if (mismatch
& EF_VISIUM_ARCH_MCM
)
831 new_opt_with
= new_flags
& EF_VISIUM_ARCH_MCM
? with
: without
;
832 old_opt_with
= old_flags
& EF_VISIUM_ARCH_MCM
? with
: without
;
834 else if (mismatch
& EF_VISIUM_ARCH_MCM24
)
837 new_opt_with
= new_flags
& EF_VISIUM_ARCH_MCM24
? with
: without
;
838 old_opt_with
= old_flags
& EF_VISIUM_ARCH_MCM24
? with
: without
;
844 ("%s: compiled %s -mtune=%s and linked with modules"
845 " compiled %s -mtune=%s"),
846 bfd_get_filename (ibfd
), new_opt_with
, opt_arch
, old_opt_with
,
854 visium_elf_print_private_bfd_data (bfd
*abfd
, void *ptr
)
856 FILE *file
= (FILE *) ptr
;
859 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
861 /* Print normal ELF private data. */
862 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
864 flags
= elf_elfheader (abfd
)->e_flags
;
865 fprintf (file
, _("private flags = 0x%lx:"), (long) flags
);
867 if (flags
& EF_VISIUM_ARCH_GR6
)
868 fprintf (file
, " -mtune=gr6");
869 else if (flags
& EF_VISIUM_ARCH_MCM
)
870 fprintf (file
, " -mtune=mcm");
871 else if (flags
& EF_VISIUM_ARCH_MCM24
)
872 fprintf (file
, " -mtune=mcm24");
878 #define ELF_ARCH bfd_arch_visium
879 #define ELF_MACHINE_CODE EM_VISIUM
880 #define ELF_MAXPAGESIZE 1
882 #define TARGET_BIG_SYM visium_elf32_vec
883 #define TARGET_BIG_NAME "elf32-visium"
885 #define elf_info_to_howto_rel NULL
886 #define elf_info_to_howto visium_info_to_howto_rela
887 #define elf_backend_relocate_section visium_elf_relocate_section
888 #define elf_backend_gc_mark_hook visium_elf_gc_mark_hook
889 #define elf_backend_check_relocs visium_elf_check_relocs
890 #define elf_backend_rela_normal 1
892 #define elf_backend_can_gc_sections 1
894 #define bfd_elf32_bfd_reloc_type_lookup visium_reloc_type_lookup
895 #define bfd_elf32_bfd_reloc_name_lookup visium_reloc_name_lookup
897 #define bfd_elf32_bfd_set_private_flags visium_elf_set_private_flags
898 #define bfd_elf32_bfd_copy_private_bfd_data visium_elf_copy_private_bfd_data
899 #define bfd_elf32_bfd_merge_private_bfd_data visium_elf_merge_private_bfd_data
900 #define bfd_elf32_bfd_print_private_bfd_data visium_elf_print_private_bfd_data
901 #define elf_backend_post_process_headers visium_elf_post_process_headers
903 #include "elf32-target.h"