1 /* CRIS-specific support for 32-bit ELF.
2 Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
3 2010, 2011, 2012 Free Software Foundation, Inc.
4 Contributed by Axis Communications AB.
5 Written by Hans-Peter Nilsson, based on elf32-fr30.c
6 PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c.
8 This file is part of BFD, the Binary File Descriptor library.
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
23 MA 02110-1301, USA. */
32 /* Forward declarations. */
33 static reloc_howto_type
* cris_reloc_type_lookup
34 PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type code
));
36 static void cris_info_to_howto_rela
37 PARAMS ((bfd
*, arelent
*, Elf_Internal_Rela
*));
39 static bfd_reloc_status_type cris_elf_pcrel_reloc
40 PARAMS ((bfd
*, arelent
*, asymbol
*, PTR
, asection
*, bfd
*, char **));
42 static bfd_boolean cris_elf_grok_prstatus
43 PARAMS ((bfd
*abfd
, Elf_Internal_Note
*note
));
45 static bfd_boolean cris_elf_grok_psinfo
46 PARAMS ((bfd
*abfd
, Elf_Internal_Note
*note
));
48 static bfd_boolean cris_elf_relocate_section
49 PARAMS ((bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
50 Elf_Internal_Rela
*, Elf_Internal_Sym
*, asection
**));
52 static bfd_reloc_status_type cris_final_link_relocate
53 PARAMS ((reloc_howto_type
*, bfd
*, asection
*, bfd_byte
*,
54 Elf_Internal_Rela
*, bfd_vma
));
56 static bfd_boolean cris_elf_object_p
PARAMS ((bfd
*));
58 static void cris_elf_final_write_processing
PARAMS ((bfd
*, bfd_boolean
));
60 static bfd_boolean cris_elf_set_mach_from_flags
61 PARAMS ((bfd
*, unsigned long int));
63 static bfd_boolean cris_elf_print_private_bfd_data
PARAMS ((bfd
*, PTR
));
65 static bfd_boolean cris_elf_merge_private_bfd_data
PARAMS ((bfd
*, bfd
*));
66 static bfd_boolean cris_elf_copy_private_bfd_data
PARAMS ((bfd
*, bfd
*));
68 struct elf_cris_link_hash_entry
;
69 static bfd_boolean elf_cris_discard_excess_dso_dynamics
70 PARAMS ((struct elf_cris_link_hash_entry
*, PTR
));
71 static bfd_boolean elf_cris_discard_excess_program_dynamics
72 PARAMS ((struct elf_cris_link_hash_entry
*, PTR
));
73 static bfd_boolean elf_cris_adjust_gotplt_to_got
74 PARAMS ((struct elf_cris_link_hash_entry
*, PTR
));
75 static bfd_boolean elf_cris_try_fold_plt_to_got
76 PARAMS ((struct elf_cris_link_hash_entry
*, PTR
));
77 static struct bfd_hash_entry
*elf_cris_link_hash_newfunc
78 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
79 static struct bfd_link_hash_table
*elf_cris_link_hash_table_create
81 static bfd_boolean elf_cris_adjust_dynamic_symbol
82 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*));
83 static bfd_boolean cris_elf_check_relocs
84 PARAMS ((bfd
*, struct bfd_link_info
*, asection
*,
85 const Elf_Internal_Rela
*));
87 static bfd_boolean elf_cris_size_dynamic_sections
88 PARAMS ((bfd
*, struct bfd_link_info
*));
89 static bfd_boolean elf_cris_finish_dynamic_symbol
90 PARAMS ((bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
92 static bfd_boolean elf_cris_finish_dynamic_sections
93 PARAMS ((bfd
*, struct bfd_link_info
*));
94 static void elf_cris_hide_symbol
95 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
96 static enum elf_reloc_type_class elf_cris_reloc_type_class
97 PARAMS ((const Elf_Internal_Rela
*));
99 static reloc_howto_type cris_elf_howto_table
[] =
101 /* This reloc does nothing. */
102 HOWTO (R_CRIS_NONE
, /* type */
104 2, /* size (0 = byte, 1 = short, 2 = long) */
106 FALSE
, /* pc_relative */
108 complain_overflow_bitfield
, /* complain_on_overflow */
109 bfd_elf_generic_reloc
, /* special_function */
110 "R_CRIS_NONE", /* name */
111 FALSE
, /* partial_inplace */
114 FALSE
), /* pcrel_offset */
116 /* An 8 bit absolute relocation. */
117 HOWTO (R_CRIS_8
, /* type */
119 0, /* size (0 = byte, 1 = short, 2 = long) */
121 FALSE
, /* pc_relative */
123 complain_overflow_bitfield
, /* complain_on_overflow */
124 bfd_elf_generic_reloc
, /* special_function */
125 "R_CRIS_8", /* name */
126 FALSE
, /* partial_inplace */
127 0x0000, /* src_mask */
128 0x00ff, /* dst_mask */
129 FALSE
), /* pcrel_offset */
131 /* A 16 bit absolute relocation. */
132 HOWTO (R_CRIS_16
, /* type */
134 1, /* size (0 = byte, 1 = short, 2 = long) */
136 FALSE
, /* pc_relative */
138 complain_overflow_bitfield
, /* complain_on_overflow */
139 bfd_elf_generic_reloc
, /* special_function */
140 "R_CRIS_16", /* name */
141 FALSE
, /* partial_inplace */
142 0x00000000, /* src_mask */
143 0x0000ffff, /* dst_mask */
144 FALSE
), /* pcrel_offset */
146 /* A 32 bit absolute relocation. */
147 HOWTO (R_CRIS_32
, /* type */
149 2, /* size (0 = byte, 1 = short, 2 = long) */
151 FALSE
, /* pc_relative */
153 /* We don't want overflow complaints for 64-bit vma builds
154 for e.g. sym+0x40000000 (or actually sym-0xc0000000 in
155 32-bit ELF) where sym=0xc0001234.
156 Don't do this for the PIC relocs, as we don't expect to
157 see them with large offsets. */
158 complain_overflow_dont
, /* complain_on_overflow */
159 bfd_elf_generic_reloc
, /* special_function */
160 "R_CRIS_32", /* name */
161 FALSE
, /* partial_inplace */
162 0x00000000, /* src_mask */
163 0xffffffff, /* dst_mask */
164 FALSE
), /* pcrel_offset */
166 /* An 8 bit PC-relative relocation. */
167 HOWTO (R_CRIS_8_PCREL
, /* type */
169 0, /* size (0 = byte, 1 = short, 2 = long) */
171 TRUE
, /* pc_relative */
173 complain_overflow_bitfield
, /* complain_on_overflow */
174 cris_elf_pcrel_reloc
, /* special_function */
175 "R_CRIS_8_PCREL", /* name */
176 FALSE
, /* partial_inplace */
177 0x0000, /* src_mask */
178 0x00ff, /* dst_mask */
179 TRUE
), /* pcrel_offset */
181 /* A 16 bit PC-relative relocation. */
182 HOWTO (R_CRIS_16_PCREL
, /* type */
184 1, /* size (0 = byte, 1 = short, 2 = long) */
186 TRUE
, /* pc_relative */
188 complain_overflow_bitfield
, /* complain_on_overflow */
189 cris_elf_pcrel_reloc
, /* special_function */
190 "R_CRIS_16_PCREL", /* name */
191 FALSE
, /* partial_inplace */
192 0x00000000, /* src_mask */
193 0x0000ffff, /* dst_mask */
194 TRUE
), /* pcrel_offset */
196 /* A 32 bit PC-relative relocation. */
197 HOWTO (R_CRIS_32_PCREL
, /* type */
199 2, /* size (0 = byte, 1 = short, 2 = long) */
201 TRUE
, /* pc_relative */
203 complain_overflow_bitfield
, /* complain_on_overflow */
204 cris_elf_pcrel_reloc
, /* special_function */
205 "R_CRIS_32_PCREL", /* name */
206 FALSE
, /* partial_inplace */
207 0x00000000, /* src_mask */
208 0xffffffff, /* dst_mask */
209 TRUE
), /* pcrel_offset */
211 /* GNU extension to record C++ vtable hierarchy. */
212 HOWTO (R_CRIS_GNU_VTINHERIT
, /* type */
214 2, /* size (0 = byte, 1 = short, 2 = long) */
216 FALSE
, /* pc_relative */
218 complain_overflow_dont
, /* complain_on_overflow */
219 NULL
, /* special_function */
220 "R_CRIS_GNU_VTINHERIT", /* name */
221 FALSE
, /* partial_inplace */
224 FALSE
), /* pcrel_offset */
226 /* GNU extension to record C++ vtable member usage. */
227 HOWTO (R_CRIS_GNU_VTENTRY
, /* type */
229 2, /* size (0 = byte, 1 = short, 2 = long) */
231 FALSE
, /* pc_relative */
233 complain_overflow_dont
, /* complain_on_overflow */
234 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
235 "R_CRIS_GNU_VTENTRY", /* name */
236 FALSE
, /* partial_inplace */
239 FALSE
), /* pcrel_offset */
241 /* This is used only by the dynamic linker. The symbol should exist
242 both in the object being run and in some shared library. The
243 dynamic linker copies the data addressed by the symbol from the
244 shared library into the object, because the object being
245 run has to have the data at some particular address. */
246 HOWTO (R_CRIS_COPY
, /* type */
248 2, /* size (0 = byte, 1 = short, 2 = long) */
250 FALSE
, /* pc_relative */
252 complain_overflow_bitfield
, /* complain_on_overflow */
253 bfd_elf_generic_reloc
, /* special_function */
254 "R_CRIS_COPY", /* name */
255 FALSE
, /* partial_inplace */
258 FALSE
), /* pcrel_offset */
260 /* Like R_CRIS_32, but used when setting global offset table entries. */
261 HOWTO (R_CRIS_GLOB_DAT
, /* type */
263 2, /* size (0 = byte, 1 = short, 2 = long) */
265 FALSE
, /* pc_relative */
267 complain_overflow_bitfield
, /* complain_on_overflow */
268 bfd_elf_generic_reloc
, /* special_function */
269 "R_CRIS_GLOB_DAT", /* name */
270 FALSE
, /* partial_inplace */
272 0xffffffff, /* dst_mask */
273 FALSE
), /* pcrel_offset */
275 /* Marks a procedure linkage table entry for a symbol. */
276 HOWTO (R_CRIS_JUMP_SLOT
, /* type */
278 2, /* size (0 = byte, 1 = short, 2 = long) */
280 FALSE
, /* pc_relative */
282 complain_overflow_bitfield
, /* complain_on_overflow */
283 bfd_elf_generic_reloc
, /* special_function */
284 "R_CRIS_JUMP_SLOT", /* name */
285 FALSE
, /* partial_inplace */
288 FALSE
), /* pcrel_offset */
290 /* Used only by the dynamic linker. When the object is run, this
291 longword is set to the load address of the object, plus the
293 HOWTO (R_CRIS_RELATIVE
, /* type */
295 2, /* size (0 = byte, 1 = short, 2 = long) */
297 FALSE
, /* pc_relative */
299 complain_overflow_bitfield
, /* complain_on_overflow */
300 bfd_elf_generic_reloc
, /* special_function */
301 "R_CRIS_RELATIVE", /* name */
302 FALSE
, /* partial_inplace */
304 0xffffffff, /* dst_mask */
305 FALSE
), /* pcrel_offset */
307 /* Like R_CRIS_32, but referring to the GOT table entry for the symbol. */
308 HOWTO (R_CRIS_16_GOT
, /* type */
310 1, /* size (0 = byte, 1 = short, 2 = long) */
312 FALSE
, /* pc_relative */
314 complain_overflow_bitfield
, /* complain_on_overflow */
315 bfd_elf_generic_reloc
, /* special_function */
316 "R_CRIS_16_GOT", /* name */
317 FALSE
, /* partial_inplace */
319 0xffff, /* dst_mask */
320 FALSE
), /* pcrel_offset */
322 HOWTO (R_CRIS_32_GOT
, /* type */
324 2, /* size (0 = byte, 1 = short, 2 = long) */
326 FALSE
, /* pc_relative */
328 complain_overflow_bitfield
, /* complain_on_overflow */
329 bfd_elf_generic_reloc
, /* special_function */
330 "R_CRIS_32_GOT", /* name */
331 FALSE
, /* partial_inplace */
333 0xffffffff, /* dst_mask */
334 FALSE
), /* pcrel_offset */
336 /* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of
337 the GOT table for the symbol. */
338 HOWTO (R_CRIS_16_GOTPLT
, /* type */
340 1, /* size (0 = byte, 1 = short, 2 = long) */
342 FALSE
, /* pc_relative */
344 complain_overflow_bitfield
, /* complain_on_overflow */
345 bfd_elf_generic_reloc
, /* special_function */
346 "R_CRIS_16_GOTPLT", /* name */
347 FALSE
, /* partial_inplace */
349 0xffff, /* dst_mask */
350 FALSE
), /* pcrel_offset */
352 HOWTO (R_CRIS_32_GOTPLT
, /* type */
354 2, /* size (0 = byte, 1 = short, 2 = long) */
356 FALSE
, /* pc_relative */
358 complain_overflow_bitfield
, /* complain_on_overflow */
359 bfd_elf_generic_reloc
, /* special_function */
360 "R_CRIS_32_GOTPLT", /* name */
361 FALSE
, /* partial_inplace */
363 0xffffffff, /* dst_mask */
364 FALSE
), /* pcrel_offset */
366 /* A 32-bit offset from GOT to (local const) symbol: no GOT entry should
368 HOWTO (R_CRIS_32_GOTREL
, /* type */
370 2, /* size (0 = byte, 1 = short, 2 = long) */
372 FALSE
, /* pc_relative */
374 complain_overflow_bitfield
, /* complain_on_overflow */
375 bfd_elf_generic_reloc
, /* special_function */
376 "R_CRIS_32_GOTREL", /* name */
377 FALSE
, /* partial_inplace */
379 0xffffffff, /* dst_mask */
380 FALSE
), /* pcrel_offset */
382 /* A 32-bit offset from GOT to entry for this symbol in PLT and request
383 to create PLT entry for symbol. */
384 HOWTO (R_CRIS_32_PLT_GOTREL
, /* type */
386 2, /* size (0 = byte, 1 = short, 2 = long) */
388 FALSE
, /* pc_relative */
390 complain_overflow_bitfield
, /* complain_on_overflow */
391 bfd_elf_generic_reloc
, /* special_function */
392 "R_CRIS_32_PLT_GOTREL", /* name */
393 FALSE
, /* partial_inplace */
395 0xffffffff, /* dst_mask */
396 FALSE
), /* pcrel_offset */
398 /* A 32-bit offset from PC (location after the relocation) + addend to
399 entry for this symbol in PLT and request to create PLT entry for
401 HOWTO (R_CRIS_32_PLT_PCREL
, /* type */
403 2, /* size (0 = byte, 1 = short, 2 = long) */
405 TRUE
, /* pc_relative */
407 complain_overflow_bitfield
, /* complain_on_overflow */
408 cris_elf_pcrel_reloc
, /* special_function */
409 "R_CRIS_32_PLT_PCREL", /* name */
410 FALSE
, /* partial_inplace */
412 0xffffffff, /* dst_mask */
413 TRUE
), /* pcrel_offset */
415 /* We don't handle these in any special manner and cross-format
416 linking is not supported; just recognize them enough to pass them
417 around. FIXME: do the same for most PIC relocs and add sanity
418 tests to actually refuse gracefully to handle these and PIC
419 relocs for cross-format linking. */
420 #define TLSHOWTO32(name) \
421 HOWTO (name, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, \
422 bfd_elf_generic_reloc, #name, FALSE, 0, 0xffffffff, FALSE)
423 #define TLSHOWTO16X(name, X) \
424 HOWTO (name, 0, 1, 16, FALSE, 0, complain_overflow_ ## X, \
425 bfd_elf_generic_reloc, #name, FALSE, 0, 0xffff, FALSE)
426 #define TLSHOWTO16(name) TLSHOWTO16X(name, unsigned)
427 #define TLSHOWTO16S(name) TLSHOWTO16X(name, signed)
429 TLSHOWTO32 (R_CRIS_32_GOT_GD
),
430 TLSHOWTO16 (R_CRIS_16_GOT_GD
),
431 TLSHOWTO32 (R_CRIS_32_GD
),
432 TLSHOWTO32 (R_CRIS_DTP
),
433 TLSHOWTO32 (R_CRIS_32_DTPREL
),
434 TLSHOWTO16S (R_CRIS_16_DTPREL
),
435 TLSHOWTO32 (R_CRIS_32_GOT_TPREL
),
436 TLSHOWTO16S (R_CRIS_16_GOT_TPREL
),
437 TLSHOWTO32 (R_CRIS_32_TPREL
),
438 TLSHOWTO16S (R_CRIS_16_TPREL
),
439 TLSHOWTO32 (R_CRIS_DTPMOD
),
440 TLSHOWTO32 (R_CRIS_32_IE
)
443 /* Map BFD reloc types to CRIS ELF reloc types. */
445 struct cris_reloc_map
447 bfd_reloc_code_real_type bfd_reloc_val
;
448 unsigned int cris_reloc_val
;
451 static const struct cris_reloc_map cris_reloc_map
[] =
453 { BFD_RELOC_NONE
, R_CRIS_NONE
},
454 { BFD_RELOC_8
, R_CRIS_8
},
455 { BFD_RELOC_16
, R_CRIS_16
},
456 { BFD_RELOC_32
, R_CRIS_32
},
457 { BFD_RELOC_8_PCREL
, R_CRIS_8_PCREL
},
458 { BFD_RELOC_16_PCREL
, R_CRIS_16_PCREL
},
459 { BFD_RELOC_32_PCREL
, R_CRIS_32_PCREL
},
460 { BFD_RELOC_VTABLE_INHERIT
, R_CRIS_GNU_VTINHERIT
},
461 { BFD_RELOC_VTABLE_ENTRY
, R_CRIS_GNU_VTENTRY
},
462 { BFD_RELOC_CRIS_COPY
, R_CRIS_COPY
},
463 { BFD_RELOC_CRIS_GLOB_DAT
, R_CRIS_GLOB_DAT
},
464 { BFD_RELOC_CRIS_JUMP_SLOT
, R_CRIS_JUMP_SLOT
},
465 { BFD_RELOC_CRIS_RELATIVE
, R_CRIS_RELATIVE
},
466 { BFD_RELOC_CRIS_16_GOT
, R_CRIS_16_GOT
},
467 { BFD_RELOC_CRIS_32_GOT
, R_CRIS_32_GOT
},
468 { BFD_RELOC_CRIS_16_GOTPLT
, R_CRIS_16_GOTPLT
},
469 { BFD_RELOC_CRIS_32_GOTPLT
, R_CRIS_32_GOTPLT
},
470 { BFD_RELOC_CRIS_32_GOTREL
, R_CRIS_32_GOTREL
},
471 { BFD_RELOC_CRIS_32_PLT_GOTREL
, R_CRIS_32_PLT_GOTREL
},
472 { BFD_RELOC_CRIS_32_PLT_PCREL
, R_CRIS_32_PLT_PCREL
},
473 { BFD_RELOC_CRIS_32_GOT_GD
, R_CRIS_32_GOT_GD
},
474 { BFD_RELOC_CRIS_16_GOT_GD
, R_CRIS_16_GOT_GD
},
475 { BFD_RELOC_CRIS_32_GD
, R_CRIS_32_GD
},
476 { BFD_RELOC_CRIS_DTP
, R_CRIS_DTP
},
477 { BFD_RELOC_CRIS_32_DTPREL
, R_CRIS_32_DTPREL
},
478 { BFD_RELOC_CRIS_16_DTPREL
, R_CRIS_16_DTPREL
},
479 { BFD_RELOC_CRIS_32_GOT_TPREL
, R_CRIS_32_GOT_TPREL
},
480 { BFD_RELOC_CRIS_16_GOT_TPREL
, R_CRIS_16_GOT_TPREL
},
481 { BFD_RELOC_CRIS_32_TPREL
, R_CRIS_32_TPREL
},
482 { BFD_RELOC_CRIS_16_TPREL
, R_CRIS_16_TPREL
},
483 { BFD_RELOC_CRIS_DTPMOD
, R_CRIS_DTPMOD
},
484 { BFD_RELOC_CRIS_32_IE
, R_CRIS_32_IE
}
487 static reloc_howto_type
*
488 cris_reloc_type_lookup (abfd
, code
)
489 bfd
* abfd ATTRIBUTE_UNUSED
;
490 bfd_reloc_code_real_type code
;
494 for (i
= 0; i
< sizeof (cris_reloc_map
) / sizeof (cris_reloc_map
[0]); i
++)
495 if (cris_reloc_map
[i
].bfd_reloc_val
== code
)
496 return & cris_elf_howto_table
[cris_reloc_map
[i
].cris_reloc_val
];
501 static reloc_howto_type
*
502 cris_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
, const char *r_name
)
507 i
< sizeof (cris_elf_howto_table
) / sizeof (cris_elf_howto_table
[0]);
509 if (cris_elf_howto_table
[i
].name
!= NULL
510 && strcasecmp (cris_elf_howto_table
[i
].name
, r_name
) == 0)
511 return &cris_elf_howto_table
[i
];
516 /* Set the howto pointer for an CRIS ELF reloc. */
519 cris_info_to_howto_rela (abfd
, cache_ptr
, dst
)
520 bfd
* abfd ATTRIBUTE_UNUSED
;
522 Elf_Internal_Rela
* dst
;
524 enum elf_cris_reloc_type r_type
;
526 r_type
= ELF32_R_TYPE (dst
->r_info
);
527 BFD_ASSERT (r_type
< (unsigned int) R_CRIS_max
);
528 cache_ptr
->howto
= & cris_elf_howto_table
[r_type
];
531 bfd_reloc_status_type
532 cris_elf_pcrel_reloc (abfd
, reloc_entry
, symbol
, data
, input_section
,
533 output_bfd
, error_message
)
534 bfd
*abfd ATTRIBUTE_UNUSED
;
535 arelent
*reloc_entry
;
537 PTR data ATTRIBUTE_UNUSED
;
538 asection
*input_section
;
540 char **error_message ATTRIBUTE_UNUSED
;
542 /* By default (using only bfd_elf_generic_reloc when linking to
543 non-ELF formats) PC-relative relocs are relative to the beginning
544 of the reloc. CRIS PC-relative relocs are relative to the position
545 *after* the reloc because that's what pre-CRISv32 PC points to
546 after reading an insn field with that reloc. (For CRISv32, PC is
547 actually relative to the start of the insn, but we keep the old
548 definition.) Still, we use as much generic machinery as we can.
550 Only adjust when doing a final link. */
551 if (output_bfd
== (bfd
*) NULL
)
552 reloc_entry
->addend
-= 1 << reloc_entry
->howto
->size
;
555 bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
556 input_section
, output_bfd
, error_message
);
559 /* Support for core dump NOTE sections.
560 The slightly unintuitive code layout is an attempt to keep at least
561 some similarities with other ports, hoping to simplify general
562 changes, while still keeping Linux/CRIS and Linux/CRISv32 code apart. */
565 cris_elf_grok_prstatus (abfd
, note
)
567 Elf_Internal_Note
*note
;
572 if (bfd_get_mach (abfd
) == bfd_mach_cris_v32
)
573 switch (note
->descsz
)
578 case 202: /* Linux/CRISv32 */
580 elf_tdata (abfd
)->core_signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
583 elf_tdata (abfd
)->core_lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 22);
592 switch (note
->descsz
)
597 case 214: /* Linux/CRIS */
599 elf_tdata (abfd
)->core_signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
602 elf_tdata (abfd
)->core_lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 22);
611 /* Make a ".reg/999" section. */
612 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
613 size
, note
->descpos
+ offset
);
617 cris_elf_grok_psinfo (abfd
, note
)
619 Elf_Internal_Note
*note
;
621 if (bfd_get_mach (abfd
) == bfd_mach_cris_v32
)
622 switch (note
->descsz
)
627 case 124: /* Linux/CRISv32 elf_prpsinfo */
628 elf_tdata (abfd
)->core_program
629 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
630 elf_tdata (abfd
)->core_command
631 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
634 switch (note
->descsz
)
639 case 124: /* Linux/CRIS elf_prpsinfo */
640 elf_tdata (abfd
)->core_program
641 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
642 elf_tdata (abfd
)->core_command
643 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
646 /* Note that for some reason, a spurious space is tacked
647 onto the end of the args in some (at least one anyway)
648 implementations, so strip it off if it exists. */
651 char *command
= elf_tdata (abfd
)->core_command
;
652 int n
= strlen (command
);
654 if (0 < n
&& command
[n
- 1] == ' ')
655 command
[n
- 1] = '\0';
661 /* The name of the dynamic interpreter. This is put in the .interp
664 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
666 /* The size in bytes of an entry in the procedure linkage table. */
668 #define PLT_ENTRY_SIZE 20
669 #define PLT_ENTRY_SIZE_V32 26
671 /* The first entry in an absolute procedure linkage table looks like this. */
673 static const bfd_byte elf_cris_plt0_entry
[PLT_ENTRY_SIZE
] =
676 0x7e, 0x7e, /* push mof. */
677 0x7f, 0x0d, /* (dip [pc+]) */
678 0, 0, 0, 0, /* Replaced with address of .got + 4. */
679 0x30, 0x7a, /* move [...],mof */
680 0x7f, 0x0d, /* (dip [pc+]) */
681 0, 0, 0, 0, /* Replaced with address of .got + 8. */
682 0x30, 0x09 /* jump [...] */
685 static const bfd_byte elf_cris_plt0_entry_v32
[PLT_ENTRY_SIZE_V32
] =
687 0x84, 0xe2, /* subq 4,$sp */
688 0x6f, 0xfe, /* move.d 0,$acr */
689 0, 0, 0, 0, /* Replaced by address of .got + 4. */
690 0x7e, 0x7a, /* move $mof,[$sp] */
691 0x3f, 0x7a, /* move [$acr],$mof */
692 0x04, 0xf2, /* addq 4,acr */
693 0x6f, 0xfa, /* move.d [$acr],$acr */
694 0xbf, 0x09, /* jump $acr */
695 0xb0, 0x05, /* nop */
696 0, 0 /* Pad out to 26 bytes. */
699 /* Subsequent entries in an absolute procedure linkage table look like
702 static const bfd_byte elf_cris_plt_entry
[PLT_ENTRY_SIZE
] =
704 0x7f, 0x0d, /* (dip [pc+]) */
705 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
706 0x30, 0x09, /* jump [...] */
707 0x3f, 0x7e, /* move [pc+],mof */
708 0, 0, 0, 0, /* Replaced with offset into relocation table. */
709 0x2f, 0xfe, /* add.d [pc+],pc */
711 0xff, 0xff /* Replaced with offset to start of .plt. */
714 static const bfd_byte elf_cris_plt_entry_v32
[PLT_ENTRY_SIZE_V32
] =
716 0x6f, 0xfe, /* move.d 0,$acr */
717 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
718 0x6f, 0xfa, /* move.d [$acr],$acr */
719 0xbf, 0x09, /* jump $acr */
720 0xb0, 0x05, /* nop */
721 0x3f, 0x7e, /* move 0,mof */
722 0, 0, 0, 0, /* Replaced with offset into relocation table. */
723 0xbf, 0x0e, /* ba start_of_plt0_entry */
724 0, 0, 0, 0, /* Replaced with offset to plt0 entry. */
728 /* The first entry in a PIC procedure linkage table looks like this. */
730 static const bfd_byte elf_cris_pic_plt0_entry
[PLT_ENTRY_SIZE
] =
732 0xfc, 0xe1, 0x7e, 0x7e, /* push mof */
733 0x04, 0x01, 0x30, 0x7a, /* move [r0+4],mof */
734 0x08, 0x01, 0x30, 0x09, /* jump [r0+8] */
735 0, 0, 0, 0, 0, 0, 0, 0, /* Pad out to 20 bytes. */
738 static const bfd_byte elf_cris_pic_plt0_entry_v32
[PLT_ENTRY_SIZE_V32
] =
740 0x84, 0xe2, /* subq 4,$sp */
741 0x04, 0x01, /* addoq 4,$r0,$acr */
742 0x7e, 0x7a, /* move $mof,[$sp] */
743 0x3f, 0x7a, /* move [$acr],$mof */
744 0x04, 0xf2, /* addq 4,$acr */
745 0x6f, 0xfa, /* move.d [$acr],$acr */
746 0xbf, 0x09, /* jump $acr */
747 0xb0, 0x05, /* nop */
748 0, 0, /* Pad out to 26 bytes. */
753 /* Subsequent entries in a PIC procedure linkage table look like this. */
755 static const bfd_byte elf_cris_pic_plt_entry
[PLT_ENTRY_SIZE
] =
757 0x6f, 0x0d, /* (bdap [pc+].d,r0) */
758 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
759 0x30, 0x09, /* jump [...] */
760 0x3f, 0x7e, /* move [pc+],mof */
761 0, 0, 0, 0, /* Replaced with offset into relocation table. */
762 0x2f, 0xfe, /* add.d [pc+],pc */
763 0xec, 0xff, /* Replaced with offset to start of .plt. */
767 static const bfd_byte elf_cris_pic_plt_entry_v32
[PLT_ENTRY_SIZE_V32
] =
769 0x6f, 0x0d, /* addo.d 0,$r0,$acr */
770 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
771 0x6f, 0xfa, /* move.d [$acr],$acr */
772 0xbf, 0x09, /* jump $acr */
773 0xb0, 0x05, /* nop */
774 0x3f, 0x7e, /* move relocoffs,$mof */
775 0, 0, 0, 0, /* Replaced with offset into relocation table. */
776 0xbf, 0x0e, /* ba start_of_plt */
777 0, 0, 0, 0, /* Replaced with offset to start of .plt. */
781 /* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
782 (and most other PIC/shlib stuff). Check that we don't drift away
785 The CRIS linker, like the m68k and i386 linkers (and probably the rest
786 too) needs to keep track of the number of relocs that it decides to
787 copy in check_relocs for each symbol. This is so that it can discard
788 PC relative relocs if it doesn't need them when linking with
789 -Bsymbolic. We store the information in a field extending the regular
790 ELF linker hash table. */
792 /* This structure keeps track of the number of PC relative relocs we have
793 copied for a given symbol. */
795 struct elf_cris_pcrel_relocs_copied
798 struct elf_cris_pcrel_relocs_copied
*next
;
800 /* A section in dynobj. */
803 /* Number of relocs copied in this section. */
806 /* Example of reloc being copied, for message. */
807 enum elf_cris_reloc_type r_type
;
810 /* CRIS ELF linker hash entry. */
812 struct elf_cris_link_hash_entry
814 struct elf_link_hash_entry root
;
816 /* Number of PC relative relocs copied for this symbol. */
817 struct elf_cris_pcrel_relocs_copied
*pcrel_relocs_copied
;
819 /* The GOTPLT references are CRIS-specific; the goal is to avoid having
820 both a general GOT and a PLT-specific GOT entry for the same symbol,
821 when it is referenced both as a function and as a function pointer.
823 Number of GOTPLT references for a function. */
824 bfd_signed_vma gotplt_refcount
;
826 /* Actual GOTPLT index for this symbol, if applicable, or zero if not
827 (zero is never used as an index). FIXME: We should be able to fold
828 this with gotplt_refcount in a union, like the got and plt unions in
829 elf_link_hash_entry. */
830 bfd_size_type gotplt_offset
;
832 /* The root.got.refcount is the sum of the regular reference counts
833 (this) and those members below. We have to keep a separate count
834 to track when we've found the first (or last) reference to a
835 regular got entry. The offset is in root.got.offset. */
836 bfd_signed_vma reg_got_refcount
;
838 /* Similar to the above, the number of reloc references to this
839 symbols that need a R_CRIS_32_TPREL slot. The offset is in
840 root.got.offset, because this and .dtp_refcount can't validly
841 happen when there's also a regular GOT entry; that's invalid
842 input for which an error is emitted. */
843 bfd_signed_vma tprel_refcount
;
845 /* Similar to the above, the number of reloc references to this
846 symbols that need a R_CRIS_DTP slot. The offset is in
847 root.got.offset; plus 4 if .tprel_refcount > 0. */
848 bfd_signed_vma dtp_refcount
;
851 /* The local_got_refcounts and local_got_offsets are a multiple of
852 LSNUM in size, namely LGOT_ALLOC_NELTS_FOR(LSNUM) (plus one for the
853 refcount for GOT itself, see code), with the summary / group offset
854 for local symbols located at offset N, reference counts for
855 ordinary (address) relocs at offset N + LSNUM, for R_CRIS_DTP
856 relocs at offset N + 2*LSNUM, and for R_CRIS_32_TPREL relocs at N +
859 #define LGOT_REG_NDX(x) ((x) + symtab_hdr->sh_info)
860 #define LGOT_DTP_NDX(x) ((x) + 2 * symtab_hdr->sh_info)
861 #define LGOT_TPREL_NDX(x) ((x) + 3 * symtab_hdr->sh_info)
862 #define LGOT_ALLOC_NELTS_FOR(x) ((x) * 4)
864 /* CRIS ELF linker hash table. */
866 struct elf_cris_link_hash_table
868 struct elf_link_hash_table root
;
870 /* We can't use the PLT offset and calculate to get the GOTPLT offset,
871 since we try and avoid creating GOTPLT:s when there's already a GOT.
872 Instead, we keep and update the next available index here. */
873 bfd_size_type next_gotplt_entry
;
875 /* The number of R_CRIS_32_DTPREL and R_CRIS_16_DTPREL that have
876 been seen for any input; if != 0, then the constant-offset
877 R_CRIS_DTPMOD is needed for this DSO/executable. This turns
878 negative at relocation, so that we don't need an extra flag for
879 when the reloc is output. */
880 bfd_signed_vma dtpmod_refcount
;
883 /* Traverse a CRIS ELF linker hash table. */
885 #define elf_cris_link_hash_traverse(table, func, info) \
886 (elf_link_hash_traverse \
888 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
891 /* Get the CRIS ELF linker hash table from a link_info structure. */
893 #define elf_cris_hash_table(p) \
894 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
895 == CRIS_ELF_DATA ? ((struct elf_cris_link_hash_table *) ((p)->hash)) : NULL)
897 /* Get the CRIS ELF linker hash entry from a regular hash entry (the
898 "parent class"). The .root reference is just a simple type
899 check on the argument. */
901 #define elf_cris_hash_entry(p) \
902 ((struct elf_cris_link_hash_entry *) (&(p)->root))
904 /* Create an entry in a CRIS ELF linker hash table. */
906 static struct bfd_hash_entry
*
907 elf_cris_link_hash_newfunc (struct bfd_hash_entry
*entry
,
908 struct bfd_hash_table
*table
,
911 struct elf_cris_link_hash_entry
*ret
=
912 (struct elf_cris_link_hash_entry
*) entry
;
914 /* Allocate the structure if it has not already been allocated by a
916 if (ret
== (struct elf_cris_link_hash_entry
*) NULL
)
917 ret
= ((struct elf_cris_link_hash_entry
*)
918 bfd_hash_allocate (table
,
919 sizeof (struct elf_cris_link_hash_entry
)));
920 if (ret
== (struct elf_cris_link_hash_entry
*) NULL
)
921 return (struct bfd_hash_entry
*) ret
;
923 /* Call the allocation method of the superclass. */
924 ret
= ((struct elf_cris_link_hash_entry
*)
925 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
927 if (ret
!= (struct elf_cris_link_hash_entry
*) NULL
)
929 ret
->pcrel_relocs_copied
= NULL
;
930 ret
->gotplt_refcount
= 0;
931 ret
->gotplt_offset
= 0;
932 ret
->dtp_refcount
= 0;
933 ret
->tprel_refcount
= 0;
934 ret
->reg_got_refcount
= 0;
937 return (struct bfd_hash_entry
*) ret
;
940 /* Create a CRIS ELF linker hash table. */
942 static struct bfd_link_hash_table
*
943 elf_cris_link_hash_table_create (bfd
*abfd
)
945 struct elf_cris_link_hash_table
*ret
;
946 bfd_size_type amt
= sizeof (struct elf_cris_link_hash_table
);
948 ret
= ((struct elf_cris_link_hash_table
*) bfd_malloc (amt
));
949 if (ret
== (struct elf_cris_link_hash_table
*) NULL
)
952 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
953 elf_cris_link_hash_newfunc
,
954 sizeof (struct elf_cris_link_hash_entry
),
961 /* Initialize to skip over the first three entries in the gotplt; they
962 are used for run-time symbol evaluation. */
963 ret
->next_gotplt_entry
= 12;
965 /* We haven't seen any R_CRIS_nn_GOT_TPREL initially. */
966 ret
->dtpmod_refcount
= 0;
968 return &ret
->root
.root
;
971 /* Perform a single relocation. By default we use the standard BFD
972 routines, with a few tweaks. */
974 static bfd_reloc_status_type
975 cris_final_link_relocate (howto
, input_bfd
, input_section
, contents
, rel
,
977 reloc_howto_type
* howto
;
979 asection
* input_section
;
981 Elf_Internal_Rela
* rel
;
984 bfd_reloc_status_type r
;
985 enum elf_cris_reloc_type r_type
= ELF32_R_TYPE (rel
->r_info
);
987 /* PC-relative relocations are relative to the position *after*
988 the reloc. Note that for R_CRIS_8_PCREL the adjustment is
989 not a single byte, since PC must be 16-bit-aligned. */
992 /* Check that the 16-bit GOT relocs are positive. */
993 case R_CRIS_16_GOTPLT
:
995 if ((bfd_signed_vma
) relocation
< 0)
996 return bfd_reloc_overflow
;
999 case R_CRIS_32_PLT_PCREL
:
1000 case R_CRIS_32_PCREL
:
1003 case R_CRIS_8_PCREL
:
1004 case R_CRIS_16_PCREL
:
1012 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
1013 contents
, rel
->r_offset
,
1014 relocation
, rel
->r_addend
);
1019 /* The number of errors left before we stop outputting reloc-specific
1020 explanatory messages. By coincidence, this works nicely together
1021 with the default number of messages you'll get from LD about
1022 "relocation truncated to fit" messages before you get an
1023 "additional relocation overflows omitted from the output". */
1024 static int additional_relocation_error_msg_count
= 10;
1026 /* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was
1027 copied, for further comments. */
1030 cris_elf_relocate_section (bfd
*output_bfd ATTRIBUTE_UNUSED
,
1031 struct bfd_link_info
*info
,
1033 asection
*input_section
,
1035 Elf_Internal_Rela
*relocs
,
1036 Elf_Internal_Sym
*local_syms
,
1037 asection
**local_sections
)
1039 struct elf_cris_link_hash_table
* htab
;
1041 Elf_Internal_Shdr
*symtab_hdr
;
1042 struct elf_link_hash_entry
**sym_hashes
;
1043 bfd_vma
*local_got_offsets
;
1047 Elf_Internal_Rela
*rel
;
1048 Elf_Internal_Rela
*relend
;
1051 htab
= elf_cris_hash_table (info
);
1055 dynobj
= elf_hash_table (info
)->dynobj
;
1056 local_got_offsets
= elf_local_got_offsets (input_bfd
);
1057 symtab_hdr
= & elf_tdata (input_bfd
)->symtab_hdr
;
1058 sym_hashes
= elf_sym_hashes (input_bfd
);
1059 relend
= relocs
+ input_section
->reloc_count
;
1068 splt
= bfd_get_section_by_name (dynobj
, ".plt");
1069 sgot
= bfd_get_section_by_name (dynobj
, ".got");
1072 for (rel
= relocs
; rel
< relend
; rel
++)
1074 reloc_howto_type
*howto
;
1075 unsigned long r_symndx
;
1076 Elf_Internal_Sym
*sym
;
1078 struct elf_link_hash_entry
*h
;
1080 bfd_reloc_status_type r
;
1081 const char *symname
= NULL
;
1082 enum elf_cris_reloc_type r_type
;
1084 r_type
= ELF32_R_TYPE (rel
->r_info
);
1086 if ( r_type
== R_CRIS_GNU_VTINHERIT
1087 || r_type
== R_CRIS_GNU_VTENTRY
)
1090 r_symndx
= ELF32_R_SYM (rel
->r_info
);
1091 howto
= cris_elf_howto_table
+ r_type
;
1096 if (r_symndx
< symtab_hdr
->sh_info
)
1098 sym
= local_syms
+ r_symndx
;
1099 sec
= local_sections
[r_symndx
];
1100 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
1102 symname
= (bfd_elf_string_from_elf_section
1103 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
1104 if (symname
== NULL
)
1105 symname
= bfd_section_name (input_bfd
, sec
);
1110 bfd_boolean unresolved_reloc
;
1112 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
1113 r_symndx
, symtab_hdr
, sym_hashes
,
1115 unresolved_reloc
, warned
);
1117 symname
= h
->root
.root
.string
;
1119 if (unresolved_reloc
1120 /* Perhaps we should detect the cases that
1121 sec->output_section is expected to be NULL like i386 and
1122 m68k, but apparently (and according to elfxx-ia64.c) all
1123 valid cases are where the symbol is defined in a shared
1124 object which we link dynamically against. This includes
1125 PLT relocs for which we've created a PLT entry and other
1126 relocs for which we're prepared to create dynamic
1129 For now, new situations cause us to just err when
1130 sec->output_offset is NULL but the object with the symbol
1131 is *not* dynamically linked against. Thus this will
1132 automatically remind us so we can see if there are other
1133 valid cases we need to revisit. */
1134 && (sec
->owner
->flags
& DYNAMIC
) != 0)
1137 else if (h
->root
.type
== bfd_link_hash_defined
1138 || h
->root
.type
== bfd_link_hash_defweak
)
1140 /* Here follow the cases where the relocation value must
1141 be zero (or when further handling is simplified when
1142 zero). I can't claim to understand the various
1143 conditions and they weren't described in the files
1144 where I copied them from (elf32-m68k.c and
1145 elf32-i386.c), but let's mention examples of where
1146 they happen. FIXME: Perhaps define and use a
1147 dynamic_symbol_p function like ia64.
1149 - When creating a shared library, we can have an
1150 ordinary relocation for a symbol defined in a shared
1151 library (perhaps the one we create). We then make
1152 the relocation value zero, as the value seen now will
1153 be added into the relocation addend in this shared
1154 library, but must be handled only at dynamic-link
1155 time. FIXME: Not sure this example covers the
1156 h->elf_link_hash_flags test, though it's there in
1159 && ((! info
->symbolic
&& h
->dynindx
!= -1)
1161 && (input_section
->flags
& SEC_ALLOC
) != 0
1162 && (r_type
== R_CRIS_8
1163 || r_type
== R_CRIS_16
1164 || r_type
== R_CRIS_32
1165 || r_type
== R_CRIS_8_PCREL
1166 || r_type
== R_CRIS_16_PCREL
1167 || r_type
== R_CRIS_32_PCREL
))
1169 else if (!info
->relocatable
&& unresolved_reloc
1170 && (_bfd_elf_section_offset (output_bfd
, info
,
1176 (_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
1179 cris_elf_howto_table
[r_type
].name
,
1181 bfd_set_error (bfd_error_bad_value
);
1187 if (sec
!= NULL
&& discarded_section (sec
))
1188 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
1189 rel
, 1, relend
, howto
, 0, contents
);
1191 if (info
->relocatable
)
1196 case R_CRIS_16_GOTPLT
:
1197 case R_CRIS_32_GOTPLT
:
1198 /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
1199 but we require a PLT, and the PLT handling will take care of
1200 filling in the PLT-specific GOT entry. For the GOT offset,
1201 calculate it as we do when filling it in for the .got.plt
1202 section. If we don't have a PLT, punt to GOT handling. */
1204 && ((struct elf_cris_link_hash_entry
*) h
)->gotplt_offset
!= 0)
1207 = bfd_get_section_by_name (dynobj
, ".got.plt");
1210 BFD_ASSERT (h
->dynindx
!= -1);
1211 BFD_ASSERT (sgotplt
!= NULL
);
1214 = ((struct elf_cris_link_hash_entry
*) h
)->gotplt_offset
;
1216 relocation
= got_offset
;
1220 /* We didn't make a PLT entry for this symbol. Maybe everything is
1221 folded into the GOT. Other than folding, this happens when
1222 statically linking PIC code, or when using -Bsymbolic. Check
1223 that we instead have a GOT entry as done for us by
1224 elf_cris_adjust_dynamic_symbol, and drop through into the
1225 ordinary GOT cases. This must not happen for the
1226 executable, because any reference it does to a function
1227 that is satisfied by a DSO must generate a PLT. We assume
1228 these call-specific relocs don't address non-functions. */
1230 && (h
->got
.offset
== (bfd_vma
) -1
1234 && h
->root
.type
== bfd_link_hash_undefweak
)))))
1236 (*_bfd_error_handler
)
1237 ((h
->got
.offset
== (bfd_vma
) -1)
1238 ? _("%B, section %A: No PLT nor GOT for relocation %s"
1239 " against symbol `%s'")
1240 : _("%B, section %A: No PLT for relocation %s"
1241 " against symbol `%s'"),
1244 cris_elf_howto_table
[r_type
].name
,
1245 (symname
!= NULL
&& symname
[0] != '\0'
1246 ? symname
: _("[whose name is lost]")));
1248 /* FIXME: Perhaps blaming input is not the right thing to
1249 do; this is probably an internal error. But it is true
1250 that we didn't like that particular input. */
1251 bfd_set_error (bfd_error_bad_value
);
1256 /* The size of the actual relocation is not used here; we only
1257 fill in the GOT table here. */
1263 /* Note that despite using RELA relocations, the .got contents
1264 is always filled in with the link-relative relocation
1265 value; the addend. */
1269 off
= h
->got
.offset
;
1270 BFD_ASSERT (off
!= (bfd_vma
) -1);
1272 if (!elf_hash_table (info
)->dynamic_sections_created
1275 || h
->type
== STT_FUNC
1278 && (info
->symbolic
|| h
->dynindx
== -1)
1281 /* This wasn't checked above for ! info->shared, but
1282 must hold there if we get here; the symbol must
1283 be defined in the regular program or be undefweak
1284 or be a function or otherwise need a PLT. */
1285 BFD_ASSERT (!elf_hash_table (info
)->dynamic_sections_created
1288 || h
->type
== STT_FUNC
1290 || h
->root
.type
== bfd_link_hash_undefweak
);
1292 /* This is actually a static link, or it is a
1293 -Bsymbolic link and the symbol is defined locally,
1294 or is undefweak, or the symbol was forced to be
1295 local because of a version file, or we're not
1296 creating a dynamic object. We must initialize this
1297 entry in the global offset table. Since the offset
1298 must always be a multiple of 4, we use the least
1299 significant bit to record whether we have
1300 initialized it already.
1302 If this GOT entry should be runtime-initialized, we
1303 will create a .rela.got relocation entry to
1304 initialize the value. This is done in the
1305 finish_dynamic_symbol routine. */
1310 bfd_put_32 (output_bfd
, relocation
,
1311 sgot
->contents
+ off
);
1318 BFD_ASSERT (local_got_offsets
!= NULL
1319 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
1321 off
= local_got_offsets
[r_symndx
];
1323 /* The offset must always be a multiple of 4. We use
1324 the least significant bit to record whether we have
1325 already generated the necessary reloc. */
1330 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1334 Elf_Internal_Rela outrel
;
1337 if (srelgot
== NULL
)
1339 = bfd_get_section_by_name (dynobj
, ".rela.got");
1340 BFD_ASSERT (srelgot
!= NULL
);
1342 outrel
.r_offset
= (sgot
->output_section
->vma
1343 + sgot
->output_offset
1345 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_RELATIVE
);
1346 outrel
.r_addend
= relocation
;
1347 loc
= srelgot
->contents
;
1348 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1349 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1352 local_got_offsets
[r_symndx
] |= 1;
1356 relocation
= sgot
->output_offset
+ off
;
1357 if (rel
->r_addend
!= 0)
1359 /* We can't do anything for a relocation which is against
1360 a symbol *plus offset*. GOT holds relocations for
1361 symbols. Make this an error; the compiler isn't
1362 allowed to pass us these kinds of things. */
1364 (*_bfd_error_handler
)
1365 (_("%B, section %A: relocation %s with non-zero addend %d"
1366 " against local symbol"),
1369 cris_elf_howto_table
[r_type
].name
,
1372 (*_bfd_error_handler
)
1373 (_("%B, section %A: relocation %s with non-zero addend %d"
1374 " against symbol `%s'"),
1377 cris_elf_howto_table
[r_type
].name
,
1379 symname
[0] != '\0' ? symname
: _("[whose name is lost]"));
1381 bfd_set_error (bfd_error_bad_value
);
1387 case R_CRIS_32_GOTREL
:
1388 /* This relocation must only be performed against local symbols.
1389 It's also ok when we link a program and the symbol is either
1390 defined in an ordinary (non-DSO) object or is undefined weak. */
1392 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1396 && h
->root
.type
== bfd_link_hash_undefweak
))))
1398 (*_bfd_error_handler
)
1399 (_("%B, section %A: relocation %s is"
1400 " not allowed for global symbol: `%s'"),
1403 cris_elf_howto_table
[r_type
].name
,
1405 bfd_set_error (bfd_error_bad_value
);
1409 /* This can happen if we get a link error with the input ELF
1410 variant mismatching the output variant. Emit an error so
1411 it's noticed if it happens elsewhere. */
1414 (*_bfd_error_handler
)
1415 (_("%B, section %A: relocation %s with no GOT created"),
1418 cris_elf_howto_table
[r_type
].name
);
1419 bfd_set_error (bfd_error_bad_value
);
1423 /* This relocation is like a PC-relative one, except the
1424 reference point is the location of GOT. Note that
1425 sgot->output_offset is not involved in this calculation. We
1426 always want the start of entire .got section, not the
1427 position after the reserved header. */
1428 relocation
-= sgot
->output_section
->vma
;
1431 case R_CRIS_32_PLT_PCREL
:
1432 /* Relocation is to the entry for this symbol in the
1433 procedure linkage table. */
1435 /* Resolve a PLT_PCREL reloc against a local symbol directly,
1436 without using the procedure linkage table. */
1437 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
1440 if (h
->plt
.offset
== (bfd_vma
) -1
1443 /* We didn't make a PLT entry for this symbol. This
1444 happens when statically linking PIC code, or when
1445 using -Bsymbolic. */
1449 relocation
= (splt
->output_section
->vma
1450 + splt
->output_offset
1454 case R_CRIS_32_PLT_GOTREL
:
1455 /* Like R_CRIS_32_PLT_PCREL, but the reference point is the
1456 start of the .got section. See also comment at
1458 relocation
-= sgot
->output_section
->vma
;
1460 /* Resolve a PLT_GOTREL reloc against a local symbol directly,
1461 without using the procedure linkage table. */
1462 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
1465 if (h
->plt
.offset
== (bfd_vma
) -1
1468 /* We didn't make a PLT entry for this symbol. This
1469 happens when statically linking PIC code, or when
1470 using -Bsymbolic. */
1474 relocation
= (splt
->output_section
->vma
1475 + splt
->output_offset
1477 - sgot
->output_section
->vma
);
1480 case R_CRIS_8_PCREL
:
1481 case R_CRIS_16_PCREL
:
1482 case R_CRIS_32_PCREL
:
1483 /* If the symbol was local, we need no shlib-specific handling. */
1484 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
1485 || h
->dynindx
== -1)
1493 && r_symndx
!= STN_UNDEF
1494 && (input_section
->flags
& SEC_ALLOC
) != 0
1495 && ((r_type
!= R_CRIS_8_PCREL
1496 && r_type
!= R_CRIS_16_PCREL
1497 && r_type
!= R_CRIS_32_PCREL
)
1499 || (h
!= NULL
&& !h
->def_regular
))))
1501 Elf_Internal_Rela outrel
;
1503 bfd_boolean skip
, relocate
;
1505 /* When generating a shared object, these relocations
1506 are copied into the output file to be resolved at run
1511 sreloc
= _bfd_elf_get_dynamic_reloc_section
1512 (dynobj
, input_section
, /*rela?*/ TRUE
);
1513 /* The section should have been created in cris_elf_check_relocs,
1514 but that function will not be called for objects which fail in
1515 cris_elf_merge_private_bfd_data. */
1518 bfd_set_error (bfd_error_bad_value
);
1527 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
1529 if (outrel
.r_offset
== (bfd_vma
) -1)
1531 else if (outrel
.r_offset
== (bfd_vma
) -2
1532 /* For now, undefined weak symbols with non-default
1533 visibility (yielding 0), like exception info for
1534 discarded sections, will get a R_CRIS_NONE
1535 relocation rather than no relocation, because we
1536 notice too late that the symbol doesn't need a
1539 && h
->root
.type
== bfd_link_hash_undefweak
1540 && ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
))
1541 skip
= TRUE
, relocate
= TRUE
;
1542 outrel
.r_offset
+= (input_section
->output_section
->vma
1543 + input_section
->output_offset
);
1546 memset (&outrel
, 0, sizeof outrel
);
1547 /* h->dynindx may be -1 if the symbol was marked to
1550 && ((! info
->symbolic
&& h
->dynindx
!= -1)
1551 || !h
->def_regular
))
1553 BFD_ASSERT (h
->dynindx
!= -1);
1554 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
1555 outrel
.r_addend
= relocation
+ rel
->r_addend
;
1559 outrel
.r_addend
= relocation
+ rel
->r_addend
;
1561 if (r_type
== R_CRIS_32
)
1564 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_RELATIVE
);
1570 if (bfd_is_abs_section (sec
))
1572 else if (sec
== NULL
|| sec
->owner
== NULL
)
1574 bfd_set_error (bfd_error_bad_value
);
1581 /* We are turning this relocation into one
1582 against a section symbol. It would be
1583 proper to subtract the symbol's value,
1584 osec->vma, from the emitted reloc addend,
1585 but ld.so expects buggy relocs. */
1586 osec
= sec
->output_section
;
1587 indx
= elf_section_data (osec
)->dynindx
;
1590 osec
= htab
->root
.text_index_section
;
1591 indx
= elf_section_data (osec
)->dynindx
;
1593 BFD_ASSERT (indx
!= 0);
1596 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
1600 loc
= sreloc
->contents
;
1601 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1602 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1604 /* This reloc will be computed at runtime, so there's no
1605 need to do anything now, except for R_CRIS_32 relocations
1606 that have been turned into R_CRIS_RELATIVE. */
1613 case R_CRIS_16_DTPREL
:
1614 case R_CRIS_32_DTPREL
:
1615 /* This relocation must only be performed against local
1616 symbols, or to sections that are not loadable. It's also
1617 ok when we link a program and the symbol is defined in an
1618 ordinary (non-DSO) object (if it's undefined there, we've
1619 already seen an error). */
1621 && (input_section
->flags
& SEC_ALLOC
) != 0
1622 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1625 && h
->root
.type
!= bfd_link_hash_undefined
)))
1627 (*_bfd_error_handler
)
1628 ((h
->root
.type
== bfd_link_hash_undefined
)
1629 /* We shouldn't get here for GCC-emitted code. */
1630 ? _("%B, section %A: relocation %s has an undefined"
1631 " reference to `%s', perhaps a declaration mixup?")
1632 : ("%B, section %A: relocation %s is"
1633 " not allowed for `%s', a global symbol with default"
1634 " visibility, perhaps a declaration mixup?"),
1637 cris_elf_howto_table
[r_type
].name
,
1638 symname
!= NULL
&& symname
[0] != '\0'
1639 ? symname
: _("[whose name is lost]"));
1640 bfd_set_error (bfd_error_bad_value
);
1644 BFD_ASSERT ((input_section
->flags
& SEC_ALLOC
) == 0
1645 || htab
->dtpmod_refcount
!= 0);
1647 /* Fill in a R_CRIS_DTPMOD reloc at offset 3 if we haven't
1648 already done so. Note that we do this in .got.plt, not
1649 in .got, as .got.plt contains the first part, still the
1650 reloc is against .got, because the linker script directs
1651 (is required to direct) them both into .got. */
1652 if (htab
->dtpmod_refcount
> 0
1653 && (input_section
->flags
& SEC_ALLOC
) != 0)
1655 asection
*sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
1656 BFD_ASSERT (sgotplt
!= NULL
);
1660 Elf_Internal_Rela outrel
;
1663 if (srelgot
== NULL
)
1664 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
1665 BFD_ASSERT (srelgot
!= NULL
);
1666 loc
= srelgot
->contents
;
1667 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1669 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 12);
1670 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 16);
1671 outrel
.r_offset
= (sgotplt
->output_section
->vma
1672 + sgotplt
->output_offset
1674 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_DTPMOD
);
1675 outrel
.r_addend
= 0;
1676 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1680 /* For an executable, the GOT entry contents is known. */
1681 bfd_put_32 (output_bfd
, (bfd_vma
) 1, sgotplt
->contents
+ 12);
1682 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 16);
1685 /* Reverse the sign to mark that we've emitted the
1686 required GOT entry. */
1687 htab
->dtpmod_refcount
= - htab
->dtpmod_refcount
;
1690 /* The relocation is the offset from the start of the module
1691 TLS block to the (local) symbol. */
1692 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1693 ? 0 : elf_hash_table (info
)->tls_sec
->vma
;
1699 bfd_set_error (bfd_error_invalid_operation
);
1701 /* We've already informed in cris_elf_check_relocs that
1702 this is an error. */
1707 case R_CRIS_16_GOT_GD
:
1708 case R_CRIS_32_GOT_GD
:
1709 if (rel
->r_addend
!= 0)
1711 /* We can't do anything for a relocation which is against a
1712 symbol *plus offset*. The GOT holds relocations for
1713 symbols. Make this an error; the compiler isn't allowed
1714 to pass us these kinds of things. */
1715 (*_bfd_error_handler
)
1716 (_("%B, section %A: relocation %s with non-zero addend %d"
1717 " against symbol `%s'"),
1720 cris_elf_howto_table
[r_type
].name
,
1722 symname
[0] != '\0' ? symname
: _("[whose name is lost]"));
1724 bfd_set_error (bfd_error_bad_value
);
1729 && (h
== NULL
|| h
->def_regular
|| ELF_COMMON_DEF_P (h
)))
1731 /* Known contents of the GOT. */
1734 /* The symbol is defined in the program, so just write
1735 (1, known_tpoffset) into the GOT. */
1736 relocation
-= elf_hash_table (info
)->tls_sec
->vma
;
1740 off
= elf_cris_hash_entry (h
)->tprel_refcount
> 0
1741 ? h
->got
.offset
+ 4 : h
->got
.offset
;
1745 off
= local_got_offsets
[r_symndx
];
1746 if (local_got_offsets
[LGOT_TPREL_NDX (r_symndx
)])
1750 /* We use bit 1 of the offset as a flag for GOT entry with
1751 the R_CRIS_DTP reloc, setting it when we've emitted the
1752 GOT entry and reloc. Bit 0 is used for R_CRIS_32_TPREL
1761 local_got_offsets
[r_symndx
] |= 2;
1763 bfd_put_32 (output_bfd
, 1, sgot
->contents
+ off
);
1764 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
+ 4);
1769 relocation
= sgot
->output_offset
+ off
1770 + (r_type
== R_CRIS_32_GD
? sgot
->output_section
->vma
: 0);
1774 /* Not all parts of the GOT entry are known; emit a real
1779 off
= elf_cris_hash_entry (h
)->tprel_refcount
> 0
1780 ? h
->got
.offset
+ 4 : h
->got
.offset
;
1783 off
= local_got_offsets
[r_symndx
];
1784 if (local_got_offsets
[LGOT_TPREL_NDX (r_symndx
)])
1788 /* See above re bit 1 and bit 0 usage. */
1791 Elf_Internal_Rela outrel
;
1799 local_got_offsets
[r_symndx
] |= 2;
1801 /* Clear the target contents of the GOT (just as a
1802 gesture; it's already cleared on allocation): this
1803 relocation is not like the other dynrelocs. */
1804 bfd_put_32 (output_bfd
, 0, sgot
->contents
+ off
);
1805 bfd_put_32 (output_bfd
, 0, sgot
->contents
+ off
+ 4);
1807 if (srelgot
== NULL
)
1808 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
1809 BFD_ASSERT (srelgot
!= NULL
);
1811 if (h
!= NULL
&& h
->dynindx
!= -1)
1813 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_DTP
);
1818 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_DTP
);
1820 /* NULL if we had an error. */
1821 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1822 ? 0 : elf_hash_table (info
)->tls_sec
->vma
;
1825 outrel
.r_offset
= (sgot
->output_section
->vma
1826 + sgot
->output_offset
1828 outrel
.r_addend
= relocation
;
1829 loc
= srelgot
->contents
;
1830 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1832 /* NULL if we had an error. */
1833 if (srelgot
->contents
!= NULL
)
1834 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1839 relocation
= sgot
->output_offset
+ off
1840 + (r_type
== R_CRIS_32_GD
? sgot
->output_section
->vma
: 0);
1843 /* The GOT-relative offset to the GOT entry is the
1844 relocation, or for R_CRIS_32_GD, the actual address of
1851 bfd_set_error (bfd_error_invalid_operation
);
1853 /* We've already informed in cris_elf_check_relocs that
1854 this is an error. */
1859 case R_CRIS_32_GOT_TPREL
:
1860 case R_CRIS_16_GOT_TPREL
:
1861 if (rel
->r_addend
!= 0)
1863 /* We can't do anything for a relocation which is
1864 against a symbol *plus offset*. GOT holds
1865 relocations for symbols. Make this an error; the
1866 compiler isn't allowed to pass us these kinds of
1868 (*_bfd_error_handler
)
1869 (_("%B, section %A: relocation %s with non-zero addend %d"
1870 " against symbol `%s'"),
1873 cris_elf_howto_table
[r_type
].name
,
1875 symname
[0] != '\0' ? symname
: _("[whose name is lost]"));
1876 bfd_set_error (bfd_error_bad_value
);
1881 && (h
== NULL
|| h
->def_regular
|| ELF_COMMON_DEF_P (h
)))
1883 /* Known contents of the GOT. */
1886 /* The symbol is defined in the program, so just write
1887 the -prog_tls_size+known_tpoffset into the GOT. */
1888 relocation
-= elf_hash_table (info
)->tls_sec
->vma
;
1889 relocation
-= elf_hash_table (info
)->tls_size
;
1892 off
= h
->got
.offset
;
1894 off
= local_got_offsets
[r_symndx
];
1896 /* Bit 0 is used to mark whether we've emitted the required
1897 entry (and if needed R_CRIS_32_TPREL reloc). Bit 1
1898 is used similarly for R_CRIS_DTP, see above. */
1906 local_got_offsets
[r_symndx
] |= 1;
1908 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1913 relocation
= sgot
->output_offset
+ off
1914 + (r_type
== R_CRIS_32_IE
? sgot
->output_section
->vma
: 0);
1918 /* Emit a real relocation. */
1922 off
= h
->got
.offset
;
1924 off
= local_got_offsets
[r_symndx
];
1926 /* See above re usage of bit 0 and 1. */
1929 Elf_Internal_Rela outrel
;
1937 local_got_offsets
[r_symndx
] |= 1;
1939 if (srelgot
== NULL
)
1940 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
1941 BFD_ASSERT (srelgot
!= NULL
);
1943 if (h
!= NULL
&& h
->dynindx
!= -1)
1945 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_32_TPREL
);
1950 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_32_TPREL
);
1952 /* NULL if we had an error. */
1953 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1954 ? 0 : elf_hash_table (info
)->tls_sec
->vma
;
1957 /* Just "define" the initial contents in some
1958 semi-logical way. */
1959 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1961 outrel
.r_offset
= (sgot
->output_section
->vma
1962 + sgot
->output_offset
1964 outrel
.r_addend
= relocation
;
1965 loc
= srelgot
->contents
;
1966 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1967 /* NULL if we had an error. */
1968 if (srelgot
->contents
!= NULL
)
1969 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1974 relocation
= sgot
->output_offset
+ off
1975 + (r_type
== R_CRIS_32_IE
? sgot
->output_section
->vma
: 0);
1978 /* The GOT-relative offset to the GOT entry is the relocation,
1979 or for R_CRIS_32_GD, the actual address of the GOT entry. */
1982 case R_CRIS_16_TPREL
:
1983 case R_CRIS_32_TPREL
:
1984 /* This relocation must only be performed against symbols
1985 defined in an ordinary (non-DSO) object. */
1988 bfd_set_error (bfd_error_invalid_operation
);
1990 /* We've already informed in cris_elf_check_relocs that
1991 this is an error. */
1996 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1997 && !(h
->def_regular
|| ELF_COMMON_DEF_P (h
))
1998 /* If it's undefined, then an error message has already
2000 && h
->root
.type
!= bfd_link_hash_undefined
)
2002 (*_bfd_error_handler
)
2003 (_("%B, section %A: relocation %s is"
2004 " not allowed for symbol: `%s'"
2005 " which is defined outside the program,"
2006 " perhaps a declaration mixup?"),
2009 cris_elf_howto_table
[r_type
].name
,
2011 bfd_set_error (bfd_error_bad_value
);
2015 /* NULL if we had an error. */
2016 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
2018 : (elf_hash_table (info
)->tls_sec
->vma
2019 + elf_hash_table (info
)->tls_size
);
2021 /* The TLS-relative offset is the relocation. */
2029 r
= cris_final_link_relocate (howto
, input_bfd
, input_section
,
2030 contents
, rel
, relocation
);
2032 if (r
!= bfd_reloc_ok
)
2034 const char * msg
= (const char *) NULL
;
2038 case bfd_reloc_overflow
:
2039 r
= info
->callbacks
->reloc_overflow
2040 (info
, (h
? &h
->root
: NULL
), symname
, howto
->name
,
2041 (bfd_vma
) 0, input_bfd
, input_section
, rel
->r_offset
);
2042 if (additional_relocation_error_msg_count
> 0)
2044 additional_relocation_error_msg_count
--;
2047 case R_CRIS_16_GOTPLT
:
2050 /* Not just TLS is involved here, so we make
2051 generation and message depend on -fPIC/-fpic
2053 case R_CRIS_16_GOT_TPREL
:
2054 case R_CRIS_16_GOT_GD
:
2055 (*_bfd_error_handler
)
2056 (_("(too many global variables for -fpic:"
2057 " recompile with -fPIC)"));
2060 case R_CRIS_16_TPREL
:
2061 case R_CRIS_16_DTPREL
:
2062 (*_bfd_error_handler
)
2063 (_("(thread-local data too big for -fpic or"
2064 " -msmall-tls: recompile with -fPIC or"
2065 " -mno-small-tls)"));
2068 /* No known cause for overflow for other relocs. */
2075 case bfd_reloc_undefined
:
2076 r
= info
->callbacks
->undefined_symbol
2077 (info
, symname
, input_bfd
, input_section
, rel
->r_offset
,
2081 case bfd_reloc_outofrange
:
2082 msg
= _("internal error: out of range error");
2085 case bfd_reloc_notsupported
:
2086 msg
= _("internal error: unsupported relocation error");
2089 case bfd_reloc_dangerous
:
2090 msg
= _("internal error: dangerous relocation");
2094 msg
= _("internal error: unknown error");
2099 r
= info
->callbacks
->warning
2100 (info
, msg
, symname
, input_bfd
, input_section
, rel
->r_offset
);
2110 /* Finish up dynamic symbol handling. We set the contents of various
2111 dynamic sections here. */
2114 elf_cris_finish_dynamic_symbol (bfd
*output_bfd
,
2115 struct bfd_link_info
*info
,
2116 struct elf_link_hash_entry
*h
,
2117 Elf_Internal_Sym
*sym
)
2119 struct elf_cris_link_hash_table
* htab
;
2122 /* Where in the plt entry to put values. */
2123 int plt_off1
= 2, plt_off2
= 10, plt_off3
= 16;
2125 /* What offset to add to the distance to the first PLT entry for the
2126 value at plt_off3. */
2127 int plt_off3_value_bias
= 4;
2129 /* Where in the PLT entry the call-dynlink-stub is (happens to be same
2130 for PIC and non-PIC for v32 and pre-v32). */
2131 int plt_stub_offset
= 8;
2132 int plt_entry_size
= PLT_ENTRY_SIZE
;
2133 const bfd_byte
*plt_entry
= elf_cris_plt_entry
;
2134 const bfd_byte
*plt_pic_entry
= elf_cris_pic_plt_entry
;
2136 htab
= elf_cris_hash_table (info
);
2140 /* Adjust the various PLT entry offsets. */
2141 if (bfd_get_mach (output_bfd
) == bfd_mach_cris_v32
)
2145 plt_off3_value_bias
= -2;
2146 plt_stub_offset
= 12;
2147 plt_entry_size
= PLT_ENTRY_SIZE_V32
;
2148 plt_entry
= elf_cris_plt_entry_v32
;
2149 plt_pic_entry
= elf_cris_pic_plt_entry_v32
;
2152 dynobj
= elf_hash_table (info
)->dynobj
;
2154 if (h
->plt
.offset
!= (bfd_vma
) -1)
2161 bfd_vma gotplt_offset
2162 = elf_cris_hash_entry (h
)->gotplt_offset
;
2163 Elf_Internal_Rela rela
;
2165 bfd_boolean has_gotplt
= gotplt_offset
!= 0;
2167 /* Get the index in the .rela.plt relocations for the .got.plt
2168 entry that corresponds to this symbol.
2169 We have to count backwards here, and the result is only valid
2170 as an index into .rela.plt. We also have to undo the effect
2171 of the R_CRIS_DTPMOD entry at .got index 3 (offset 12 into
2172 .got.plt) for which gotplt_offset is adjusted, because while
2173 that entry goes into .got.plt, its relocation goes into
2174 .rela.got, not .rela.plt. (It's not PLT-specific; not to be
2175 processed as part of the runtime lazy .rela.plt relocation).
2176 FIXME: There be literal constants here... */
2177 bfd_vma rela_plt_index
2178 = (htab
->dtpmod_refcount
!= 0
2179 ? gotplt_offset
/4 - 2 - 3 : gotplt_offset
/4 - 3);
2181 /* Get the offset into the .got table of the entry that corresponds
2182 to this function. Note that we embed knowledge that "incoming"
2183 .got goes after .got.plt in the output without padding (pointer
2184 aligned). However, that knowledge is present in several other
2189 : h
->got
.offset
+ htab
->next_gotplt_entry
);
2191 /* This symbol has an entry in the procedure linkage table. Set it
2194 BFD_ASSERT (h
->dynindx
!= -1);
2196 splt
= bfd_get_section_by_name (dynobj
, ".plt");
2197 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
2198 srela
= bfd_get_section_by_name (dynobj
, ".rela.plt");
2199 BFD_ASSERT (splt
!= NULL
&& sgotplt
!= NULL
2200 && (! has_gotplt
|| srela
!= NULL
));
2202 got_base
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
;
2204 /* Fill in the entry in the procedure linkage table. */
2207 memcpy (splt
->contents
+ h
->plt
.offset
, plt_entry
,
2210 /* We need to enter the absolute address of the GOT entry here. */
2211 bfd_put_32 (output_bfd
, got_base
+ got_offset
,
2212 splt
->contents
+ h
->plt
.offset
+ plt_off1
);
2216 memcpy (splt
->contents
+ h
->plt
.offset
, plt_pic_entry
,
2218 bfd_put_32 (output_bfd
, got_offset
,
2219 splt
->contents
+ h
->plt
.offset
+ plt_off1
);
2222 /* Fill in the plt entry and make a relocation, if this is a "real"
2226 /* Fill in the offset to the reloc table. */
2227 bfd_put_32 (output_bfd
,
2228 rela_plt_index
* sizeof (Elf32_External_Rela
),
2229 splt
->contents
+ h
->plt
.offset
+ plt_off2
);
2231 /* Fill in the offset to the first PLT entry, where to "jump". */
2232 bfd_put_32 (output_bfd
,
2233 - (h
->plt
.offset
+ plt_off3
+ plt_off3_value_bias
),
2234 splt
->contents
+ h
->plt
.offset
+ plt_off3
);
2236 /* Fill in the entry in the global offset table with the address of
2237 the relocating stub. */
2238 bfd_put_32 (output_bfd
,
2239 (splt
->output_section
->vma
2240 + splt
->output_offset
2243 sgotplt
->contents
+ got_offset
);
2245 /* Fill in the entry in the .rela.plt section. */
2246 rela
.r_offset
= (sgotplt
->output_section
->vma
2247 + sgotplt
->output_offset
2249 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_JUMP_SLOT
);
2251 loc
= srela
->contents
+ rela_plt_index
* sizeof (Elf32_External_Rela
);
2252 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2255 if (!h
->def_regular
)
2257 /* Mark the symbol as undefined, rather than as defined in
2258 the .plt section. Leave the value alone. */
2259 sym
->st_shndx
= SHN_UNDEF
;
2261 /* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't
2262 know whether resetting the value is significant; if it really
2263 is, rather than a quirk or bug in the sparc port, then I
2264 believe we'd see this elsewhere. */
2265 /* If the symbol is weak, we do need to clear the value.
2266 Otherwise, the PLT entry would provide a definition for
2267 the symbol even if the symbol wasn't defined anywhere,
2268 and so the symbol would never be NULL. */
2269 if (!h
->ref_regular_nonweak
)
2274 /* For an ordinary program, we emit .got relocs only for symbols that
2275 are in the dynamic-symbols table and are either defined by the
2276 program or are undefined weak symbols, or are function symbols
2277 where we do not output a PLT: the PLT reloc was output above and all
2278 references to the function symbol are redirected to the PLT. */
2279 if (h
->got
.offset
!= (bfd_vma
) -1
2280 && (elf_cris_hash_entry (h
)->reg_got_refcount
> 0)
2282 || (h
->dynindx
!= -1
2283 && h
->plt
.offset
== (bfd_vma
) -1
2285 && h
->root
.type
!= bfd_link_hash_undefweak
)))
2289 Elf_Internal_Rela rela
;
2293 /* This symbol has an entry in the global offset table. Set it up. */
2295 sgot
= bfd_get_section_by_name (dynobj
, ".got");
2296 srela
= bfd_get_section_by_name (dynobj
, ".rela.got");
2297 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
2299 rela
.r_offset
= (sgot
->output_section
->vma
2300 + sgot
->output_offset
2301 + (h
->got
.offset
&~ (bfd_vma
) 1));
2303 /* If this is a static link, or it is a -Bsymbolic link and the
2304 symbol is defined locally or was forced to be local because
2305 of a version file, we just want to emit a RELATIVE reloc.
2306 The entry in the global offset table will already have been
2307 initialized in the relocate_section function. */
2308 where
= sgot
->contents
+ (h
->got
.offset
&~ (bfd_vma
) 1);
2309 if (! elf_hash_table (info
)->dynamic_sections_created
2311 && (info
->symbolic
|| h
->dynindx
== -1)
2314 rela
.r_info
= ELF32_R_INFO (0, R_CRIS_RELATIVE
);
2315 rela
.r_addend
= bfd_get_signed_32 (output_bfd
, where
);
2319 bfd_put_32 (output_bfd
, (bfd_vma
) 0, where
);
2320 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_GLOB_DAT
);
2324 loc
= srela
->contents
;
2325 loc
+= srela
->reloc_count
++ * sizeof (Elf32_External_Rela
);
2326 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2332 Elf_Internal_Rela rela
;
2335 /* This symbol needs a copy reloc. Set it up. */
2337 BFD_ASSERT (h
->dynindx
!= -1
2338 && (h
->root
.type
== bfd_link_hash_defined
2339 || h
->root
.type
== bfd_link_hash_defweak
));
2341 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
,
2343 BFD_ASSERT (s
!= NULL
);
2345 rela
.r_offset
= (h
->root
.u
.def
.value
2346 + h
->root
.u
.def
.section
->output_section
->vma
2347 + h
->root
.u
.def
.section
->output_offset
);
2348 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_COPY
);
2350 loc
= s
->contents
+ s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
2351 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2354 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
2355 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
2356 || h
== elf_hash_table (info
)->hgot
)
2357 sym
->st_shndx
= SHN_ABS
;
2362 /* Finish up the dynamic sections. Do *not* emit relocs here, as their
2363 offsets were changed, as part of -z combreloc handling, from those we
2367 elf_cris_finish_dynamic_sections (output_bfd
, info
)
2369 struct bfd_link_info
*info
;
2375 dynobj
= elf_hash_table (info
)->dynobj
;
2377 sgot
= bfd_get_section_by_name (dynobj
, ".got.plt");
2378 BFD_ASSERT (sgot
!= NULL
);
2379 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
2381 if (elf_hash_table (info
)->dynamic_sections_created
)
2384 Elf32_External_Dyn
*dyncon
, *dynconend
;
2386 splt
= bfd_get_section_by_name (dynobj
, ".plt");
2387 BFD_ASSERT (splt
!= NULL
&& sdyn
!= NULL
);
2389 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
2390 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
2391 for (; dyncon
< dynconend
; dyncon
++)
2393 Elf_Internal_Dyn dyn
;
2396 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
2404 s
= bfd_get_section_by_name (output_bfd
, ".got");
2405 BFD_ASSERT (s
!= NULL
);
2406 dyn
.d_un
.d_ptr
= s
->vma
;
2407 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2411 /* Yes, we *can* have a .plt and no .plt.rela, for instance
2412 if all symbols are found in the .got (not .got.plt). */
2413 s
= bfd_get_section_by_name (output_bfd
, ".rela.plt");
2414 dyn
.d_un
.d_ptr
= s
!= NULL
? s
->vma
: 0;
2415 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2419 s
= bfd_get_section_by_name (output_bfd
, ".rela.plt");
2423 dyn
.d_un
.d_val
= s
->size
;
2424 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2428 /* The procedure linkage table relocs (DT_JMPREL) should
2429 not be included in the overall relocs (DT_RELA).
2430 Therefore, we override the DT_RELASZ entry here to
2431 make it not include the JMPREL relocs. Since the
2432 linker script arranges for .rela.plt to follow all
2433 other relocation sections, we don't have to worry
2434 about changing the DT_RELA entry. */
2435 s
= bfd_get_section_by_name (output_bfd
, ".rela.plt");
2437 dyn
.d_un
.d_val
-= s
->size
;
2438 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2443 /* Fill in the first entry in the procedure linkage table. */
2446 if (bfd_get_mach (output_bfd
) == bfd_mach_cris_v32
)
2449 memcpy (splt
->contents
, elf_cris_pic_plt0_entry_v32
,
2450 PLT_ENTRY_SIZE_V32
);
2453 memcpy (splt
->contents
, elf_cris_plt0_entry_v32
,
2454 PLT_ENTRY_SIZE_V32
);
2455 bfd_put_32 (output_bfd
,
2456 sgot
->output_section
->vma
2457 + sgot
->output_offset
+ 4,
2458 splt
->contents
+ 4);
2460 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
2461 = PLT_ENTRY_SIZE_V32
;
2467 memcpy (splt
->contents
, elf_cris_pic_plt0_entry
,
2471 memcpy (splt
->contents
, elf_cris_plt0_entry
,
2473 bfd_put_32 (output_bfd
,
2474 sgot
->output_section
->vma
2475 + sgot
->output_offset
+ 4,
2476 splt
->contents
+ 6);
2477 bfd_put_32 (output_bfd
,
2478 sgot
->output_section
->vma
2479 + sgot
->output_offset
+ 8,
2480 splt
->contents
+ 14);
2482 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
2489 /* Fill in the first three entries in the global offset table. */
2493 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
2495 bfd_put_32 (output_bfd
,
2496 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
2498 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
2499 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
2502 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
2507 /* Return the section that should be marked against GC for a given
2511 cris_elf_gc_mark_hook (asection
*sec
,
2512 struct bfd_link_info
*info
,
2513 Elf_Internal_Rela
*rel
,
2514 struct elf_link_hash_entry
*h
,
2515 Elf_Internal_Sym
*sym
)
2517 enum elf_cris_reloc_type r_type
= ELF32_R_TYPE (rel
->r_info
);
2521 case R_CRIS_GNU_VTINHERIT
:
2522 case R_CRIS_GNU_VTENTRY
:
2529 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
2532 /* Update the got entry reference counts for the section being removed. */
2535 cris_elf_gc_sweep_hook (bfd
*abfd
,
2536 struct bfd_link_info
*info
,
2538 const Elf_Internal_Rela
*relocs
)
2540 struct elf_cris_link_hash_table
* htab
;
2541 Elf_Internal_Shdr
*symtab_hdr
;
2542 struct elf_link_hash_entry
**sym_hashes
;
2543 bfd_signed_vma
*local_got_refcounts
;
2544 const Elf_Internal_Rela
*rel
, *relend
;
2549 if (info
->relocatable
)
2552 dynobj
= elf_hash_table (info
)->dynobj
;
2556 htab
= elf_cris_hash_table (info
);
2560 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2561 sym_hashes
= elf_sym_hashes (abfd
);
2562 local_got_refcounts
= elf_local_got_refcounts (abfd
);
2564 sgot
= bfd_get_section_by_name (dynobj
, ".got");
2565 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
2567 relend
= relocs
+ sec
->reloc_count
;
2568 for (rel
= relocs
; rel
< relend
; rel
++)
2570 unsigned long r_symndx
;
2571 struct elf_link_hash_entry
*h
= NULL
;
2572 bfd_signed_vma got_element_size
= 4;
2573 bfd_signed_vma
*specific_refcount
= NULL
;
2574 enum elf_cris_reloc_type r_type
;
2576 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2577 if (r_symndx
>= symtab_hdr
->sh_info
)
2579 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2580 while (h
->root
.type
== bfd_link_hash_indirect
2581 || h
->root
.type
== bfd_link_hash_warning
)
2582 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2585 r_type
= ELF32_R_TYPE (rel
->r_info
);
2590 case R_CRIS_16_GOTPLT
:
2591 case R_CRIS_32_GOTPLT
:
2592 specific_refcount
= h
!= NULL
2593 ? &((struct elf_cris_link_hash_entry
*) h
)->reg_got_refcount
2594 : &local_got_refcounts
[LGOT_REG_NDX (r_symndx
)];
2598 case R_CRIS_32_GOT_GD
:
2599 case R_CRIS_16_GOT_GD
:
2600 got_element_size
= 8;
2601 specific_refcount
= h
!= NULL
2602 ? &((struct elf_cris_link_hash_entry
*) h
)->dtp_refcount
2603 : &local_got_refcounts
[LGOT_DTP_NDX (r_symndx
)];
2607 case R_CRIS_16_GOT_TPREL
:
2608 case R_CRIS_32_GOT_TPREL
:
2609 specific_refcount
= h
!= NULL
2610 ? &((struct elf_cris_link_hash_entry
*) h
)->tprel_refcount
2611 : &local_got_refcounts
[LGOT_TPREL_NDX (r_symndx
)];
2622 case R_CRIS_16_GOT_TPREL
:
2623 case R_CRIS_32_GOT_TPREL
:
2624 case R_CRIS_32_GOT_GD
:
2625 case R_CRIS_16_GOT_GD
:
2630 /* If the counters are 0 when we got here, we've
2631 miscounted somehow somewhere, an internal error. */
2632 BFD_ASSERT (h
->got
.refcount
> 0);
2635 BFD_ASSERT (*specific_refcount
> 0);
2636 --*specific_refcount
;
2637 if (*specific_refcount
== 0)
2639 /* We don't need the .got entry any more. */
2640 sgot
->size
-= got_element_size
;
2641 srelgot
->size
-= sizeof (Elf32_External_Rela
);
2647 if (local_got_refcounts
!= NULL
)
2649 /* If the counters are 0 when we got here, we've
2650 miscounted somehow somewhere, an internal error. */
2651 BFD_ASSERT (local_got_refcounts
[r_symndx
] > 0);
2652 --local_got_refcounts
[r_symndx
];
2654 BFD_ASSERT (*specific_refcount
> 0);
2655 --*specific_refcount
;
2656 if (*specific_refcount
== 0)
2658 /* We don't need the .got entry any more. */
2659 sgot
->size
-= got_element_size
;
2661 srelgot
->size
-= sizeof (Elf32_External_Rela
);
2666 case R_CRIS_16_GOTPLT
:
2667 case R_CRIS_32_GOTPLT
:
2668 /* For local symbols, treat these like GOT relocs. */
2670 goto local_got_reloc
;
2672 /* For global symbols, adjust the reloc-specific refcount. */
2673 elf_cris_hash_entry (h
)->gotplt_refcount
--;
2676 case R_CRIS_32_PLT_GOTREL
:
2677 /* FIXME: We don't garbage-collect away the .got section. */
2678 if (local_got_refcounts
!= NULL
)
2679 local_got_refcounts
[-1]--;
2685 case R_CRIS_8_PCREL
:
2686 case R_CRIS_16_PCREL
:
2687 case R_CRIS_32_PCREL
:
2688 case R_CRIS_32_PLT_PCREL
:
2689 /* Negate the increment we did in cris_elf_check_relocs. */
2692 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2693 && h
->plt
.refcount
> 0)
2698 case R_CRIS_32_DTPREL
:
2699 /* This'd be a .dtpreld entry in e.g. debug info. */
2700 if ((sec
->flags
& SEC_ALLOC
) == 0)
2703 case R_CRIS_16_DTPREL
:
2704 htab
->dtpmod_refcount
--;
2705 if (htab
->dtpmod_refcount
== 0)
2706 htab
->next_gotplt_entry
-= 8;
2707 BFD_ASSERT (local_got_refcounts
!= NULL
);
2708 local_got_refcounts
[-1]--;
2719 /* The elf_backend_plt_sym_val hook function. */
2722 cris_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED
, const asection
*plt
,
2725 bfd_size_type plt_entry_size
;
2726 bfd_size_type pltoffs
;
2727 bfd
*abfd
= plt
->owner
;
2729 /* Same for CRIS and CRIS v32; see elf_cris_(|pic_)plt_entry(|_v32)[]. */
2730 bfd_size_type plt_entry_got_offset
= 2;
2731 bfd_size_type plt_sec_size
;
2732 bfd_size_type got_vma_for_dyn
;
2735 /* FIXME: the .got section should be readily available also when
2736 we're not linking. */
2737 if ((got
= bfd_get_section_by_name (abfd
, ".got")) == NULL
)
2738 return (bfd_vma
) -1;
2740 plt_sec_size
= bfd_section_size (plt
->owner
, plt
);
2742 = (bfd_get_mach (abfd
) == bfd_mach_cris_v32
2743 ? PLT_ENTRY_SIZE_V32
: PLT_ENTRY_SIZE
);
2745 /* Data in PLT is GOT-relative for DYN, but absolute for EXE. */
2746 got_vma_for_dyn
= (abfd
->flags
& EXEC_P
) ? 0 : got
->vma
;
2748 /* Because we can have merged GOT entries; a single .got entry for
2749 both GOT and the PLT part of the GOT (.got.plt), the index of the
2750 reloc in .rela.plt is not the same as the index in the PLT.
2751 Instead, we have to hunt down the GOT offset in the PLT that
2752 corresponds to that of this reloc. Unfortunately, we will only
2753 be called for the .rela.plt relocs, so we'll miss synthetic
2754 symbols for .plt entries with merged GOT entries. (FIXME:
2755 fixable by providing our own bfd_elf32_get_synthetic_symtab.
2756 Doesn't seem worthwile at time of this writing.) FIXME: we've
2757 gone from O(1) to O(N) (N number of PLT entries) for finding each
2758 PLT address. Shouldn't matter in practice though. */
2760 for (pltoffs
= plt_entry_size
;
2761 pltoffs
< plt_sec_size
;
2762 pltoffs
+= plt_entry_size
)
2764 bfd_size_type got_offset
;
2765 bfd_byte gotoffs_raw
[4];
2767 if (!bfd_get_section_contents (abfd
, (asection
*) plt
, gotoffs_raw
,
2768 pltoffs
+ plt_entry_got_offset
,
2769 sizeof (gotoffs_raw
)))
2770 return (bfd_vma
) -1;
2772 got_offset
= bfd_get_32 (abfd
, gotoffs_raw
);
2773 if (got_offset
+ got_vma_for_dyn
== rel
->address
)
2774 return plt
->vma
+ pltoffs
;
2777 /* While it's tempting to BFD_ASSERT that we shouldn't get here,
2778 that'd not be graceful behavior for invalid input. */
2779 return (bfd_vma
) -1;
2782 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
2783 entry but we found we will not create any. Called when we find we will
2784 not have any PLT for this symbol, by for example
2785 elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
2786 or elf_cris_size_dynamic_sections if no dynamic sections will be
2787 created (we're only linking static objects). */
2790 elf_cris_adjust_gotplt_to_got (h
, p
)
2791 struct elf_cris_link_hash_entry
*h
;
2794 struct bfd_link_info
*info
= (struct bfd_link_info
*) p
;
2796 /* A GOTPLT reloc, when activated, is supposed to be included into
2797 the PLT refcount. */
2798 BFD_ASSERT (h
->gotplt_refcount
== 0
2799 || h
->gotplt_refcount
<= h
->root
.plt
.refcount
);
2801 /* If nobody wanted a GOTPLT with this symbol, we're done. */
2802 if (h
->gotplt_refcount
<= 0)
2805 if (h
->reg_got_refcount
> 0)
2807 /* There's a GOT entry for this symbol. Just adjust the refcounts.
2808 Probably not necessary at this stage, but keeping them accurate
2809 helps avoiding surprises later. */
2810 h
->root
.got
.refcount
+= h
->gotplt_refcount
;
2811 h
->reg_got_refcount
+= h
->gotplt_refcount
;
2812 h
->gotplt_refcount
= 0;
2816 /* No GOT entry for this symbol. We need to create one. */
2817 bfd
*dynobj
= elf_hash_table (info
)->dynobj
;
2821 BFD_ASSERT (dynobj
!= NULL
);
2822 sgot
= bfd_get_section_by_name (dynobj
, ".got");
2823 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
2825 /* Put accurate refcounts there. */
2826 h
->root
.got
.refcount
+= h
->gotplt_refcount
;
2827 h
->reg_got_refcount
= h
->gotplt_refcount
;
2829 h
->gotplt_refcount
= 0;
2831 /* We always have a .got and a .rela.got section if there were
2832 GOTPLT relocs in input. */
2833 BFD_ASSERT (sgot
!= NULL
&& srelgot
!= NULL
);
2835 /* Allocate space in the .got section. */
2838 /* Allocate relocation space. */
2839 srelgot
->size
+= sizeof (Elf32_External_Rela
);
2845 /* Try to fold PLT entries with GOT entries. There are two cases when we
2848 - When all PLT references are GOTPLT references, and there are GOT
2849 references, and this is not the executable. We don't have to
2850 generate a PLT at all.
2852 - When there are both (ordinary) PLT references and GOT references,
2853 and this isn't the executable.
2854 We want to make the PLT reference use the ordinary GOT entry rather
2855 than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry,
2856 since the GOT entry will have to be resolved at startup anyway.
2858 Though the latter case is handled when room for the PLT is allocated,
2861 By folding into the GOT, we may need a round-trip to a PLT in the
2862 executable for calls, a loss in performance. Still, losing a
2863 reloc is a win in size and at least in start-up time.
2865 Note that this function is called before symbols are forced local by
2866 version scripts. The differing cases are handled by
2867 elf_cris_hide_symbol. */
2870 elf_cris_try_fold_plt_to_got (h
, p
)
2871 struct elf_cris_link_hash_entry
*h
;
2874 struct bfd_link_info
*info
= (struct bfd_link_info
*) p
;
2876 /* If there are no GOT references for this symbol, we can't fold any
2877 other reference so there's nothing to do. Likewise if there are no
2878 PLT references; GOTPLT references included. */
2879 if (h
->root
.got
.refcount
<= 0 || h
->root
.plt
.refcount
<= 0)
2882 /* GOTPLT relocs are supposed to be included into the PLT refcount. */
2883 BFD_ASSERT (h
->gotplt_refcount
<= h
->root
.plt
.refcount
);
2885 if (h
->gotplt_refcount
== h
->root
.plt
.refcount
)
2887 /* The only PLT references are GOTPLT references, and there are GOT
2888 references. Convert PLT to GOT references. */
2889 if (! elf_cris_adjust_gotplt_to_got (h
, info
))
2892 /* Clear the PLT references, so no PLT will be created. */
2893 h
->root
.plt
.offset
= (bfd_vma
) -1;
2899 /* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
2900 to use a GOT entry (and create one) rather than requiring a GOTPLT
2904 elf_cris_hide_symbol (info
, h
, force_local
)
2905 struct bfd_link_info
*info
;
2906 struct elf_link_hash_entry
*h
;
2907 bfd_boolean force_local
;
2909 elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry
*) h
, info
);
2911 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
2914 /* Adjust a symbol defined by a dynamic object and referenced by a
2915 regular object. The current definition is in some section of the
2916 dynamic object, but we're not including those sections. We have to
2917 change the definition to something the rest of the link can
2921 elf_cris_adjust_dynamic_symbol (struct bfd_link_info
*info
,
2922 struct elf_link_hash_entry
*h
)
2924 struct elf_cris_link_hash_table
* htab
;
2927 bfd_size_type plt_entry_size
;
2929 htab
= elf_cris_hash_table (info
);
2933 dynobj
= elf_hash_table (info
)->dynobj
;
2935 /* Make sure we know what is going on here. */
2936 BFD_ASSERT (dynobj
!= NULL
2938 || h
->u
.weakdef
!= NULL
2941 && !h
->def_regular
)));
2944 = (bfd_get_mach (dynobj
) == bfd_mach_cris_v32
2945 ? PLT_ENTRY_SIZE_V32
: PLT_ENTRY_SIZE
);
2947 /* If this is a function, put it in the procedure linkage table. We
2948 will fill in the contents of the procedure linkage table later,
2949 when we know the address of the .got section. */
2950 if (h
->type
== STT_FUNC
2953 /* If we link a program (not a DSO), we'll get rid of unnecessary
2954 PLT entries; we point to the actual symbols -- even for pic
2955 relocs, because a program built with -fpic should have the same
2956 result as one built without -fpic, specifically considering weak
2958 FIXME: m68k and i386 differ here, for unclear reasons. */
2962 /* This case can occur if we saw a PLT reloc in an input file,
2963 but the symbol was not defined by a dynamic object. In such
2964 a case, we don't actually need to build a procedure linkage
2965 table, and we can just do an absolute or PC reloc instead, or
2966 change a .got.plt index to a .got index for GOTPLT relocs. */
2967 BFD_ASSERT (h
->needs_plt
);
2969 h
->plt
.offset
= (bfd_vma
) -1;
2971 elf_cris_adjust_gotplt_to_got ((struct
2972 elf_cris_link_hash_entry
*) h
,
2976 /* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
2977 where a pointer-equivalent symbol was unimportant (i.e. more
2978 like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
2979 of the PLT. We can't for the executable, because the GOT
2980 entries will point to the PLT there (and be constant). */
2982 && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry
*)
2986 /* GC or folding may have rendered this entry unused. */
2987 if (h
->plt
.refcount
<= 0)
2990 h
->plt
.offset
= (bfd_vma
) -1;
2994 /* Make sure this symbol is output as a dynamic symbol. */
2995 if (h
->dynindx
== -1)
2997 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
3001 s
= bfd_get_section_by_name (dynobj
, ".plt");
3002 BFD_ASSERT (s
!= NULL
);
3004 /* If this is the first .plt entry, make room for the special
3007 s
->size
+= plt_entry_size
;
3009 /* If this symbol is not defined in a regular file, and we are
3010 not generating a shared library, then set the symbol to this
3011 location in the .plt. */
3015 h
->root
.u
.def
.section
= s
;
3016 h
->root
.u
.def
.value
= s
->size
;
3019 /* If there's already a GOT entry, use that, not a .got.plt. A
3020 GOT field still has a reference count when we get here; it's
3021 not yet changed to an offset. We can't do this for an
3022 executable, because then the reloc associated with the PLT
3023 would get a non-PLT reloc pointing to the PLT. FIXME: Move
3024 this to elf_cris_try_fold_plt_to_got. */
3025 if (info
->shared
&& h
->got
.refcount
> 0)
3027 h
->got
.refcount
+= h
->plt
.refcount
;
3029 /* Mark the PLT offset to use the GOT entry by setting the low
3030 bit in the plt offset; it is always a multiple of
3031 plt_entry_size (which is at least a multiple of 2). */
3032 BFD_ASSERT ((s
->size
% plt_entry_size
) == 0);
3034 /* Change the PLT refcount to an offset. */
3035 h
->plt
.offset
= s
->size
;
3037 /* By not setting gotplt_offset (i.e. it remains at 0), we signal
3038 that the got entry should be used instead. */
3039 BFD_ASSERT (((struct elf_cris_link_hash_entry
*)
3040 h
)->gotplt_offset
== 0);
3042 /* Make room for this entry. */
3043 s
->size
+= plt_entry_size
;
3048 /* No GOT reference for this symbol; prepare for an ordinary PLT. */
3049 h
->plt
.offset
= s
->size
;
3051 /* Make room for this entry. */
3052 s
->size
+= plt_entry_size
;
3054 /* We also need to make an entry in the .got.plt section, which
3055 will be placed in the .got section by the linker script. */
3056 ((struct elf_cris_link_hash_entry
*) h
)->gotplt_offset
3057 = htab
->next_gotplt_entry
;
3058 htab
->next_gotplt_entry
+= 4;
3060 s
= bfd_get_section_by_name (dynobj
, ".got.plt");
3061 BFD_ASSERT (s
!= NULL
);
3064 /* We also need to make an entry in the .rela.plt section. */
3066 s
= bfd_get_section_by_name (dynobj
, ".rela.plt");
3067 BFD_ASSERT (s
!= NULL
);
3068 s
->size
+= sizeof (Elf32_External_Rela
);
3073 /* Reinitialize the plt offset now that it is not used as a reference
3075 h
->plt
.offset
= (bfd_vma
) -1;
3077 /* If this is a weak symbol, and there is a real definition, the
3078 processor independent code will have arranged for us to see the
3079 real definition first, and we can just use the same value. */
3080 if (h
->u
.weakdef
!= NULL
)
3082 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
3083 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
3084 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
3085 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
3089 /* This is a reference to a symbol defined by a dynamic object which
3090 is not a function. */
3092 /* If we are creating a shared library, we must presume that the
3093 only references to the symbol are via the global offset table.
3094 For such cases we need not do anything here; the relocations will
3095 be handled correctly by relocate_section. */
3099 /* If there are no references to this symbol that do not use the
3100 GOT, we don't need to generate a copy reloc. */
3101 if (!h
->non_got_ref
)
3104 /* We must allocate the symbol in our .dynbss section, which will
3105 become part of the .bss section of the executable. There will be
3106 an entry for this symbol in the .dynsym section. The dynamic
3107 object will contain position independent code, so all references
3108 from the dynamic object to this symbol will go through the global
3109 offset table. The dynamic linker will use the .dynsym entry to
3110 determine the address it must put in the global offset table, so
3111 both the dynamic object and the regular object will refer to the
3112 same memory location for the variable. */
3114 s
= bfd_get_section_by_name (dynobj
, ".dynbss");
3115 BFD_ASSERT (s
!= NULL
);
3117 /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
3118 copy the initial value out of the dynamic object and into the
3119 runtime process image. We need to remember the offset into the
3120 .rela.bss section we are going to use. */
3121 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
3125 srel
= bfd_get_section_by_name (dynobj
, ".rela.bss");
3126 BFD_ASSERT (srel
!= NULL
);
3127 srel
->size
+= sizeof (Elf32_External_Rela
);
3131 return _bfd_elf_adjust_dynamic_copy (h
, s
);
3134 /* Adjust our "subclass" elements for an indirect symbol. */
3137 elf_cris_copy_indirect_symbol (struct bfd_link_info
*info
,
3138 struct elf_link_hash_entry
*dir
,
3139 struct elf_link_hash_entry
*ind
)
3141 struct elf_cris_link_hash_entry
*edir
, *eind
;
3143 edir
= (struct elf_cris_link_hash_entry
*) dir
;
3144 eind
= (struct elf_cris_link_hash_entry
*) ind
;
3146 /* Only indirect symbols are replaced; we're not interested in
3147 updating any of EIND's fields for other symbols. */
3148 if (eind
->root
.root
.type
!= bfd_link_hash_indirect
)
3150 /* Still, we need to copy flags for e.g. weak definitions. */
3151 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3155 BFD_ASSERT (edir
->gotplt_offset
== 0 || eind
->gotplt_offset
== 0);
3157 #define XMOVOPZ(F, OP, Z) edir->F OP eind->F; eind->F = Z
3158 #define XMOVE(F) XMOVOPZ (F, +=, 0)
3159 if (eind
->pcrel_relocs_copied
!= NULL
)
3161 if (edir
->pcrel_relocs_copied
!= NULL
)
3163 struct elf_cris_pcrel_relocs_copied
**pp
;
3164 struct elf_cris_pcrel_relocs_copied
*p
;
3166 /* Add reloc counts against the indirect sym to the direct sym
3167 list. Merge any entries against the same section. */
3168 for (pp
= &eind
->pcrel_relocs_copied
; *pp
!= NULL
;)
3170 struct elf_cris_pcrel_relocs_copied
*q
;
3172 for (q
= edir
->pcrel_relocs_copied
; q
!= NULL
; q
= q
->next
)
3173 if (q
->section
== p
->section
)
3175 q
->count
+= p
->count
;
3182 *pp
= edir
->pcrel_relocs_copied
;
3184 XMOVOPZ (pcrel_relocs_copied
, =, NULL
);
3186 XMOVE (gotplt_refcount
);
3187 XMOVE (gotplt_offset
);
3188 XMOVE (reg_got_refcount
);
3189 XMOVE (tprel_refcount
);
3190 XMOVE (dtp_refcount
);
3194 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3197 /* Look through the relocs for a section during the first phase. */
3200 cris_elf_check_relocs (bfd
*abfd
,
3201 struct bfd_link_info
*info
,
3203 const Elf_Internal_Rela
*relocs
)
3205 struct elf_cris_link_hash_table
* htab
;
3207 Elf_Internal_Shdr
*symtab_hdr
;
3208 struct elf_link_hash_entry
**sym_hashes
;
3209 bfd_signed_vma
*local_got_refcounts
;
3210 const Elf_Internal_Rela
*rel
;
3211 const Elf_Internal_Rela
*rel_end
;
3216 if (info
->relocatable
)
3219 htab
= elf_cris_hash_table (info
);
3223 dynobj
= elf_hash_table (info
)->dynobj
;
3224 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3225 sym_hashes
= elf_sym_hashes (abfd
);
3226 local_got_refcounts
= elf_local_got_refcounts (abfd
);
3232 rel_end
= relocs
+ sec
->reloc_count
;
3233 for (rel
= relocs
; rel
< rel_end
; rel
++)
3235 struct elf_link_hash_entry
*h
;
3236 unsigned long r_symndx
;
3237 enum elf_cris_reloc_type r_type
;
3238 bfd_signed_vma got_element_size
= 4;
3239 unsigned long r_symndx_lgot
= INT_MAX
;
3241 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3242 if (r_symndx
< symtab_hdr
->sh_info
)
3245 r_symndx_lgot
= LGOT_REG_NDX (r_symndx
);
3249 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3250 while (h
->root
.type
== bfd_link_hash_indirect
3251 || h
->root
.type
== bfd_link_hash_warning
)
3252 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3255 r_type
= ELF32_R_TYPE (rel
->r_info
);
3257 /* Some relocs require linker-created sections; we need to hang them
3258 on the first input bfd we found that contained dynamic relocs. */
3261 case R_CRIS_32_DTPREL
:
3262 if ((sec
->flags
& SEC_ALLOC
) == 0)
3263 /* This'd be a .dtpreld entry in e.g. debug info. We have
3264 several different switch statements below, but none of
3265 that is needed; we need no preparations for resolving
3266 R_CRIS_32_DTPREL into a non-allocated section (debug
3267 info), so let's just move on to the next
3271 case R_CRIS_16_DTPREL
:
3272 /* The first .got.plt entry is right after the R_CRIS_DTPMOD
3273 entry at index 3. */
3274 if (htab
->dtpmod_refcount
== 0)
3275 htab
->next_gotplt_entry
+= 8;
3277 htab
->dtpmod_refcount
++;
3282 case R_CRIS_16_GOT_GD
:
3283 case R_CRIS_32_GOT_GD
:
3284 case R_CRIS_32_GOT_TPREL
:
3285 case R_CRIS_16_GOT_TPREL
:
3288 case R_CRIS_32_GOTREL
:
3289 case R_CRIS_32_PLT_GOTREL
:
3290 case R_CRIS_32_PLT_PCREL
:
3291 case R_CRIS_16_GOTPLT
:
3292 case R_CRIS_32_GOTPLT
:
3295 elf_hash_table (info
)->dynobj
= dynobj
= abfd
;
3297 /* We could handle this if we can get a handle on the
3298 output bfd in elf_cris_adjust_dynamic_symbol. Failing
3299 that, we must insist on dynobj being a specific mach. */
3300 if (bfd_get_mach (dynobj
) == bfd_mach_cris_v10_v32
)
3302 (*_bfd_error_handler
)
3303 (_("%B, section %A:\n v10/v32 compatible object %s"
3304 " must not contain a PIC relocation"),
3309 /* Create the .got section, so we can assume it's always
3310 present whenever there's a dynobj. */
3311 if (!_bfd_elf_create_got_section (dynobj
, info
))
3316 sgot
= bfd_get_section_by_name (dynobj
, ".got");
3318 if (local_got_refcounts
== NULL
)
3322 /* We use index local_got_refcounts[-1] to count all
3323 GOT-relative relocations that do not have explicit
3325 amt
= LGOT_ALLOC_NELTS_FOR (symtab_hdr
->sh_info
) + 1;
3326 amt
*= sizeof (bfd_signed_vma
);
3327 local_got_refcounts
= ((bfd_signed_vma
*) bfd_zalloc (abfd
, amt
));
3328 if (local_got_refcounts
== NULL
)
3331 local_got_refcounts
++;
3332 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
3340 /* Some relocs require a global offset table (but perhaps not a
3341 specific GOT entry). */
3344 case R_CRIS_16_DTPREL
:
3345 case R_CRIS_32_DTPREL
:
3346 /* Not requesting .got.rela for an executable: the contents
3347 of the first entry is constant there. For a shared
3348 library, we need .got.rela for the R_CRIS_DTPMOD
3349 relocation at index 3. */
3356 case R_CRIS_16_GOT_GD
:
3357 case R_CRIS_32_GOT_GD
:
3358 case R_CRIS_32_GOT_TPREL
:
3359 case R_CRIS_16_GOT_TPREL
:
3362 /* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
3363 entry only for local symbols. Unfortunately, we don't know
3364 until later on if there's a version script that forces the
3365 symbol local. We must have the .rela.got section in place
3366 before we know if the symbol looks global now, so we need
3367 to treat the reloc just like for R_CRIS_16_GOT and
3369 case R_CRIS_16_GOTPLT
:
3370 case R_CRIS_32_GOTPLT
:
3374 && (h
!= NULL
|| info
->shared
))
3376 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
3377 if (srelgot
== NULL
)
3379 srelgot
= bfd_make_section_with_flags (dynobj
,
3385 | SEC_LINKER_CREATED
3388 || !bfd_set_section_alignment (dynobj
, srelgot
, 2))
3398 /* Warn and error for invalid input. */
3402 case R_CRIS_32_TPREL
:
3403 case R_CRIS_16_TPREL
:
3407 (*_bfd_error_handler
)
3408 (_("%B, section %A:\n relocation %s not valid"
3409 " in a shared object;"
3410 " typically an option mixup, recompile with -fPIC"),
3413 cris_elf_howto_table
[r_type
].name
);
3414 /* Don't return FALSE here; we want messages for all of
3415 these and the error behavior is ungraceful
3425 case R_CRIS_16_GOT_GD
:
3426 case R_CRIS_32_GOT_GD
:
3427 /* These are requests for tls_index entries, run-time R_CRIS_DTP. */
3428 got_element_size
= 8;
3429 r_symndx_lgot
= LGOT_DTP_NDX (r_symndx
);
3432 case R_CRIS_16_DTPREL
:
3433 case R_CRIS_32_DTPREL
:
3434 /* These two just request for the constant-index
3435 module-local tls_index-sized GOT entry, which we add
3440 case R_CRIS_32_GOT_TPREL
:
3441 case R_CRIS_16_GOT_TPREL
:
3442 r_symndx_lgot
= LGOT_TPREL_NDX (r_symndx
);
3444 /* Those relocs also require that a DSO is of type
3445 Initial Exec. Like other targets, we don't reset this
3446 flag even if the relocs are GC:ed away. */
3448 info
->flags
|= DF_STATIC_TLS
;
3451 /* Let's list the other assembler-generated TLS-relocs too,
3452 just to show that they're not forgotten. */
3453 case R_CRIS_16_TPREL
:
3454 case R_CRIS_32_TPREL
:
3461 case R_CRIS_16_GOTPLT
:
3462 case R_CRIS_32_GOTPLT
:
3463 /* Mark that we need a GOT entry if the PLT entry (and its GOT
3464 entry) is eliminated. We can only do this for a non-local
3468 elf_cris_hash_entry (h
)->gotplt_refcount
++;
3469 goto handle_gotplt_reloc
;
3471 /* If h is NULL then this is a local symbol, and we must make a
3472 GOT entry for it, so handle it like a GOT reloc. */
3477 case R_CRIS_16_GOT_GD
:
3478 case R_CRIS_32_GOT_GD
:
3479 case R_CRIS_32_GOT_TPREL
:
3480 case R_CRIS_16_GOT_TPREL
:
3483 /* This symbol requires a global offset table entry. */
3486 if (h
->got
.refcount
== 0)
3488 /* Make sure this symbol is output as a dynamic symbol. */
3489 if (h
->dynindx
== -1)
3491 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
3496 /* Update the sum of reloc counts for this symbol. */
3503 if (elf_cris_hash_entry (h
)->reg_got_refcount
== 0)
3505 /* Allocate space in the .got section. */
3506 sgot
->size
+= got_element_size
;
3507 /* Allocate relocation space. */
3508 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3510 elf_cris_hash_entry (h
)->reg_got_refcount
++;
3514 case R_CRIS_16_GOT_GD
:
3515 case R_CRIS_32_GOT_GD
:
3516 if (elf_cris_hash_entry (h
)->dtp_refcount
== 0)
3518 /* Allocate space in the .got section. */
3519 sgot
->size
+= got_element_size
;
3520 /* Allocate relocation space. */
3521 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3523 elf_cris_hash_entry (h
)->dtp_refcount
++;
3527 case R_CRIS_32_GOT_TPREL
:
3528 case R_CRIS_16_GOT_TPREL
:
3529 if (elf_cris_hash_entry (h
)->tprel_refcount
== 0)
3531 /* Allocate space in the .got section. */
3532 sgot
->size
+= got_element_size
;
3533 /* Allocate relocation space. */
3534 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3536 elf_cris_hash_entry (h
)->tprel_refcount
++;
3546 /* This is a global offset table entry for a local symbol. */
3547 if (local_got_refcounts
[r_symndx_lgot
] == 0)
3549 sgot
->size
+= got_element_size
;
3552 /* If we are generating a shared object, we need
3553 to output a R_CRIS_RELATIVE reloc so that the
3554 dynamic linker can adjust this GOT entry.
3555 Similarly for non-regular got entries. */
3556 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3559 /* Update the reloc-specific count. */
3560 local_got_refcounts
[r_symndx_lgot
]++;
3562 /* This one is the sum of all the others. */
3563 local_got_refcounts
[r_symndx
]++;
3567 case R_CRIS_16_DTPREL
:
3568 case R_CRIS_32_DTPREL
:
3569 case R_CRIS_32_GOTREL
:
3570 /* This reference requires a global offset table.
3571 FIXME: The actual refcount isn't used currently; the .got
3572 section can't be removed if there were any references in the
3574 local_got_refcounts
[-1]++;
3577 handle_gotplt_reloc
:
3579 case R_CRIS_32_PLT_GOTREL
:
3580 /* This reference requires a global offset table. */
3581 local_got_refcounts
[-1]++;
3584 case R_CRIS_32_PLT_PCREL
:
3585 /* This symbol requires a procedure linkage table entry. We
3586 actually build the entry in adjust_dynamic_symbol,
3587 because this might be a case of linking PIC code which is
3588 never referenced by a dynamic object, in which case we
3589 don't need to generate a procedure linkage table entry
3592 /* Beware: if we'd check for visibility of the symbol here
3593 (and not marking the need for a PLT when non-visible), we'd
3594 get into trouble with keeping handling consistent with
3595 regards to relocs found before definition and GOTPLT
3596 handling. Eliminable PLT entries will be dealt with later
3608 /* Let's help debug shared library creation. Any of these
3609 relocs *can* be used in shared libs, but pages containing
3610 them cannot be shared, so they're not appropriate for
3611 common use. Don't warn for sections we don't care about,
3612 such as debug sections or non-constant sections. We
3613 can't help tables of (global) function pointers, for
3614 example, though they must be emitted in a (writable) data
3615 section to avoid having impure text sections. */
3617 && (sec
->flags
& SEC_ALLOC
) != 0
3618 && (sec
->flags
& SEC_READONLY
) != 0)
3620 /* FIXME: How do we make this optionally a warning only? */
3621 (*_bfd_error_handler
)
3622 (_("%B, section %A:\n relocation %s should not"
3623 " be used in a shared object; recompile with -fPIC"),
3626 cris_elf_howto_table
[r_type
].name
);
3629 /* We don't need to handle relocs into sections not going into
3630 the "real" output. */
3631 if ((sec
->flags
& SEC_ALLOC
) == 0)
3638 /* Make sure a plt entry is created for this symbol if it
3639 turns out to be a function defined by a dynamic object. */
3640 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3644 /* If we are creating a shared library and this is not a local
3645 symbol, we need to copy the reloc into the shared library.
3646 However when linking with -Bsymbolic and this is a global
3647 symbol which is defined in an object we are including in the
3648 link (i.e., DEF_REGULAR is set), then we can resolve the
3649 reloc directly. At this point we have not seen all the input
3650 files, so it is possible that DEF_REGULAR is not set now but
3651 will be set later (it is never cleared). In case of a weak
3652 definition, DEF_REGULAR may be cleared later by a strong
3653 definition in a shared library. We account for that
3654 possibility below by storing information in the relocs_copied
3655 field of the hash table entry. A similar situation occurs
3656 when creating shared libraries and symbol visibility changes
3657 render the symbol local. */
3659 /* No need to do anything if we're not creating a shared object. */
3663 /* We may need to create a reloc section in the dynobj and made room
3667 sreloc
= _bfd_elf_make_dynamic_reloc_section
3668 (sec
, dynobj
, 2, abfd
, /*rela?*/ TRUE
);
3674 if (sec
->flags
& SEC_READONLY
)
3675 info
->flags
|= DF_TEXTREL
;
3677 sreloc
->size
+= sizeof (Elf32_External_Rela
);
3680 case R_CRIS_8_PCREL
:
3681 case R_CRIS_16_PCREL
:
3682 case R_CRIS_32_PCREL
:
3687 /* Make sure a plt entry is created for this symbol if it
3688 turns out to be a function defined by a dynamic object. */
3689 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3693 /* If we are creating a shared library and this is not a local
3694 symbol, we need to copy the reloc into the shared library.
3695 However when linking with -Bsymbolic and this is a global
3696 symbol which is defined in an object we are including in the
3697 link (i.e., DEF_REGULAR is set), then we can resolve the
3698 reloc directly. At this point we have not seen all the input
3699 files, so it is possible that DEF_REGULAR is not set now but
3700 will be set later (it is never cleared). In case of a weak
3701 definition, DEF_REGULAR may be cleared later by a strong
3702 definition in a shared library. We account for that
3703 possibility below by storing information in the relocs_copied
3704 field of the hash table entry. A similar situation occurs
3705 when creating shared libraries and symbol visibility changes
3706 render the symbol local. */
3708 /* No need to do anything if we're not creating a shared object. */
3712 /* We don't need to handle relocs into sections not going into
3713 the "real" output. */
3714 if ((sec
->flags
& SEC_ALLOC
) == 0)
3717 /* If the symbol is local, then we know already we can
3718 eliminate the reloc. */
3719 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
3722 /* If this is with -Bsymbolic and the symbol isn't weak, and
3723 is defined by an ordinary object (the ones we include in
3724 this shared library) then we can also eliminate the
3725 reloc. See comment above for more eliminable cases which
3726 we can't identify at this time. */
3728 && h
->root
.type
!= bfd_link_hash_defweak
3732 /* We may need to create a reloc section in the dynobj and made room
3736 sreloc
= _bfd_elf_make_dynamic_reloc_section
3737 (sec
, dynobj
, 2, abfd
, /*rela?*/ TRUE
);
3743 sreloc
->size
+= sizeof (Elf32_External_Rela
);
3745 /* We count the number of PC relative relocations we have
3746 entered for this symbol, so that we can discard them
3747 again if the symbol is later defined by a regular object.
3748 We know that h is really a pointer to an
3749 elf_cris_link_hash_entry. */
3751 struct elf_cris_link_hash_entry
*eh
;
3752 struct elf_cris_pcrel_relocs_copied
*p
;
3754 eh
= elf_cris_hash_entry (h
);
3756 for (p
= eh
->pcrel_relocs_copied
; p
!= NULL
; p
= p
->next
)
3757 if (p
->section
== sec
)
3762 p
= ((struct elf_cris_pcrel_relocs_copied
*)
3763 bfd_alloc (dynobj
, (bfd_size_type
) sizeof *p
));
3766 p
->next
= eh
->pcrel_relocs_copied
;
3767 eh
->pcrel_relocs_copied
= p
;
3777 /* This relocation describes the C++ object vtable hierarchy.
3778 Reconstruct it for later use during GC. */
3779 case R_CRIS_GNU_VTINHERIT
:
3780 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3784 /* This relocation describes which C++ vtable entries are actually
3785 used. Record for later use during GC. */
3786 case R_CRIS_GNU_VTENTRY
:
3787 BFD_ASSERT (h
!= NULL
);
3789 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3793 case R_CRIS_16_TPREL
:
3794 case R_CRIS_32_TPREL
:
3795 /* Already warned above, when necessary. */
3799 /* Other relocs do not appear here. */
3800 bfd_set_error (bfd_error_bad_value
);
3808 /* Set the sizes of the dynamic sections. */
3811 elf_cris_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
3812 struct bfd_link_info
*info
)
3814 struct elf_cris_link_hash_table
* htab
;
3820 htab
= elf_cris_hash_table (info
);
3824 dynobj
= elf_hash_table (info
)->dynobj
;
3825 BFD_ASSERT (dynobj
!= NULL
);
3827 if (elf_hash_table (info
)->dynamic_sections_created
)
3829 /* Set the contents of the .interp section to the interpreter. */
3830 if (info
->executable
)
3832 s
= bfd_get_section_by_name (dynobj
, ".interp");
3833 BFD_ASSERT (s
!= NULL
);
3834 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3835 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3840 /* Adjust all expected GOTPLT uses to use a GOT entry instead. */
3841 elf_cris_link_hash_traverse (htab
, elf_cris_adjust_gotplt_to_got
,
3844 /* We may have created entries in the .rela.got section.
3845 However, if we are not creating the dynamic sections, we will
3846 not actually use these entries. Reset the size of .rela.got,
3847 which will cause it to get stripped from the output file
3849 s
= bfd_get_section_by_name (dynobj
, ".rela.got");
3854 /* If this is a -Bsymbolic shared link, then we need to discard all PC
3855 relative relocs against symbols defined in a regular object. We
3856 allocated space for them in the check_relocs routine, but we will not
3857 fill them in in the relocate_section routine. We also discard space
3858 for relocs that have become for local symbols due to symbol
3859 visibility changes. For programs, we discard space for relocs for
3860 symbols not referenced by any dynamic object. */
3862 elf_cris_link_hash_traverse (htab
,
3863 elf_cris_discard_excess_dso_dynamics
,
3866 elf_cris_link_hash_traverse (htab
,
3867 elf_cris_discard_excess_program_dynamics
,
3870 /* The check_relocs and adjust_dynamic_symbol entry points have
3871 determined the sizes of the various dynamic sections. Allocate
3875 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3879 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3882 /* It's OK to base decisions on the section name, because none
3883 of the dynobj section names depend upon the input files. */
3884 name
= bfd_get_section_name (dynobj
, s
);
3886 if (strcmp (name
, ".plt") == 0)
3888 /* Remember whether there is a PLT. */
3891 else if (strcmp (name
, ".got.plt") == 0)
3893 /* The .got.plt contains the .got header as well as the
3894 actual .got.plt contents. The .got header may contain a
3895 R_CRIS_DTPMOD entry at index 3. */
3896 s
->size
+= htab
->dtpmod_refcount
!= 0
3899 else if (CONST_STRNEQ (name
, ".rela"))
3901 if (strcmp (name
, ".rela.got") == 0
3902 && htab
->dtpmod_refcount
!= 0
3904 s
->size
+= sizeof (Elf32_External_Rela
);
3908 /* Remember whether there are any reloc sections other
3910 if (strcmp (name
, ".rela.plt") != 0)
3913 /* We use the reloc_count field as a counter if we need
3914 to copy relocs into the output file. */
3918 else if (! CONST_STRNEQ (name
, ".got")
3919 && strcmp (name
, ".dynbss") != 0)
3921 /* It's not one of our sections, so don't allocate space. */
3927 /* If we don't need this section, strip it from the
3928 output file. This is mostly to handle .rela.bss and
3929 .rela.plt. We must create both sections in
3930 create_dynamic_sections, because they must be created
3931 before the linker maps input sections to output
3932 sections. The linker does that before
3933 adjust_dynamic_symbol is called, and it is that
3934 function which decides whether anything needs to go
3935 into these sections. */
3936 s
->flags
|= SEC_EXCLUDE
;
3940 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
3943 /* Allocate memory for the section contents. We use bfd_zalloc here
3944 in case unused entries are not reclaimed before the section's
3945 contents are written out. This should not happen, but this way
3946 if it does, we will not write out garbage. For reloc sections,
3947 this will make entries have the type R_CRIS_NONE. */
3948 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
3949 if (s
->contents
== NULL
)
3953 if (elf_hash_table (info
)->dynamic_sections_created
)
3955 /* Add some entries to the .dynamic section. We fill in the
3956 values later, in elf_cris_finish_dynamic_sections, but we
3957 must add the entries now so that we get the correct size for
3958 the .dynamic section. The DT_DEBUG entry is filled in by the
3959 dynamic linker and used by the debugger. */
3960 #define add_dynamic_entry(TAG, VAL) \
3961 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3965 if (!add_dynamic_entry (DT_DEBUG
, 0))
3971 if (!add_dynamic_entry (DT_PLTGOT
, 0)
3972 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
3973 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3974 || !add_dynamic_entry (DT_JMPREL
, 0))
3980 if (!add_dynamic_entry (DT_RELA
, 0)
3981 || !add_dynamic_entry (DT_RELASZ
, 0)
3982 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
3986 if ((info
->flags
& DF_TEXTREL
) != 0)
3988 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3990 info
->flags
|= DF_TEXTREL
;
3993 #undef add_dynamic_entry
3998 /* This function is called via elf_cris_link_hash_traverse if we are
3999 creating a shared object. In the -Bsymbolic case, it discards the
4000 space allocated to copy PC relative relocs against symbols which
4001 are defined in regular objects. For the normal non-symbolic case,
4002 we also discard space for relocs that have become local due to
4003 symbol visibility changes. We allocated space for them in the
4004 check_relocs routine, but we won't fill them in in the
4005 relocate_section routine. */
4008 elf_cris_discard_excess_dso_dynamics (h
, inf
)
4009 struct elf_cris_link_hash_entry
*h
;
4012 struct elf_cris_pcrel_relocs_copied
*s
;
4013 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
4015 /* If a symbol has been forced local or we have found a regular
4016 definition for the symbolic link case, then we won't be needing
4018 if (h
->root
.def_regular
4019 && (h
->root
.forced_local
4022 for (s
= h
->pcrel_relocs_copied
; s
!= NULL
; s
= s
->next
)
4025 = _bfd_elf_get_dynamic_reloc_section (elf_hash_table (info
)
4029 sreloc
->size
-= s
->count
* sizeof (Elf32_External_Rela
);
4034 /* If we have accounted for PC-relative relocs for read-only
4035 sections, now is the time to warn for them. We can't do it in
4036 cris_elf_check_relocs, because we don't know the status of all
4037 symbols at that time (and it's common to force symbols local
4040 for (s
= h
->pcrel_relocs_copied
; s
!= NULL
; s
= s
->next
)
4041 if ((s
->section
->flags
& SEC_READONLY
) != 0)
4043 /* FIXME: How do we make this optionally a warning only? */
4044 (*_bfd_error_handler
)
4045 (_("%B, section `%A', to symbol `%s':\n"
4046 " relocation %s should not be used"
4047 " in a shared object; recompile with -fPIC"),
4050 h
->root
.root
.root
.string
,
4051 cris_elf_howto_table
[s
->r_type
].name
);
4053 info
->flags
|= DF_TEXTREL
;
4059 /* This function is called via elf_cris_link_hash_traverse if we are *not*
4060 creating a shared object. We discard space for relocs for symbols put
4061 in the .got, but which we found we do not have to resolve at run-time. */
4064 elf_cris_discard_excess_program_dynamics (h
, inf
)
4065 struct elf_cris_link_hash_entry
*h
;
4068 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
4070 /* If we're not creating a shared library and have a symbol which is
4071 referred to by .got references, but the symbol is defined locally,
4072 (or rather, not defined by a DSO) then lose the reloc for the .got
4073 (don't allocate room for it). Likewise for relocs for something
4074 for which we create a PLT. */
4075 if (!h
->root
.def_dynamic
4076 || h
->root
.plt
.refcount
> 0)
4078 if (h
->reg_got_refcount
> 0
4079 /* The size of this section is only valid and in sync with the
4080 various reference counts if we do dynamic; don't decrement it
4082 && elf_hash_table (info
)->dynamic_sections_created
)
4084 bfd
*dynobj
= elf_hash_table (info
)->dynobj
;
4087 BFD_ASSERT (dynobj
!= NULL
);
4089 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
4091 BFD_ASSERT (srelgot
!= NULL
);
4093 srelgot
->size
-= sizeof (Elf32_External_Rela
);
4096 /* If the locally-defined symbol isn't used by a DSO, then we don't
4097 have to export it as a dynamic symbol. This was already done for
4098 functions; doing this for all symbols would presumably not
4099 introduce new problems. Of course we don't do this if we're
4100 exporting all dynamic symbols. */
4101 if (! info
->export_dynamic
4102 && h
->root
.dynindx
!= -1
4103 && !h
->root
.def_dynamic
4104 && !h
->root
.ref_dynamic
)
4106 h
->root
.dynindx
= -1;
4107 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
4108 h
->root
.dynstr_index
);
4115 /* Reject a file depending on presence and expectation of prefixed
4116 underscores on symbols. */
4119 cris_elf_object_p (abfd
)
4122 if (! cris_elf_set_mach_from_flags (abfd
, elf_elfheader (abfd
)->e_flags
))
4125 if ((elf_elfheader (abfd
)->e_flags
& EF_CRIS_UNDERSCORE
))
4126 return (bfd_get_symbol_leading_char (abfd
) == '_');
4128 return (bfd_get_symbol_leading_char (abfd
) == 0);
4131 /* Mark presence or absence of leading underscore. Set machine type
4132 flags from mach type. */
4135 cris_elf_final_write_processing (abfd
, linker
)
4137 bfd_boolean linker ATTRIBUTE_UNUSED
;
4139 unsigned long e_flags
= elf_elfheader (abfd
)->e_flags
;
4141 e_flags
&= ~EF_CRIS_UNDERSCORE
;
4142 if (bfd_get_symbol_leading_char (abfd
) == '_')
4143 e_flags
|= EF_CRIS_UNDERSCORE
;
4145 switch (bfd_get_mach (abfd
))
4147 case bfd_mach_cris_v0_v10
:
4148 e_flags
|= EF_CRIS_VARIANT_ANY_V0_V10
;
4151 case bfd_mach_cris_v10_v32
:
4152 e_flags
|= EF_CRIS_VARIANT_COMMON_V10_V32
;
4155 case bfd_mach_cris_v32
:
4156 e_flags
|= EF_CRIS_VARIANT_V32
;
4160 _bfd_abort (__FILE__
, __LINE__
,
4161 _("Unexpected machine number"));
4164 elf_elfheader (abfd
)->e_flags
= e_flags
;
4167 /* Set the mach type from e_flags value. */
4170 cris_elf_set_mach_from_flags (abfd
, flags
)
4172 unsigned long flags
;
4174 switch (flags
& EF_CRIS_VARIANT_MASK
)
4176 case EF_CRIS_VARIANT_ANY_V0_V10
:
4177 bfd_default_set_arch_mach (abfd
, bfd_arch_cris
, bfd_mach_cris_v0_v10
);
4180 case EF_CRIS_VARIANT_V32
:
4181 bfd_default_set_arch_mach (abfd
, bfd_arch_cris
, bfd_mach_cris_v32
);
4184 case EF_CRIS_VARIANT_COMMON_V10_V32
:
4185 bfd_default_set_arch_mach (abfd
, bfd_arch_cris
, bfd_mach_cris_v10_v32
);
4189 /* Since we don't recognize them, we obviously can't support them
4190 with this code; we'd have to require that all future handling
4191 would be optional. */
4192 bfd_set_error (bfd_error_wrong_format
);
4199 /* Display the flags field. */
4202 cris_elf_print_private_bfd_data (abfd
, ptr
)
4206 FILE *file
= (FILE *) ptr
;
4208 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4210 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4212 fprintf (file
, _("private flags = %lx:"), elf_elfheader (abfd
)->e_flags
);
4214 if (elf_elfheader (abfd
)->e_flags
& EF_CRIS_UNDERSCORE
)
4215 fprintf (file
, _(" [symbols have a _ prefix]"));
4216 if ((elf_elfheader (abfd
)->e_flags
& EF_CRIS_VARIANT_MASK
)
4217 == EF_CRIS_VARIANT_COMMON_V10_V32
)
4218 fprintf (file
, _(" [v10 and v32]"));
4219 if ((elf_elfheader (abfd
)->e_flags
& EF_CRIS_VARIANT_MASK
)
4220 == EF_CRIS_VARIANT_V32
)
4221 fprintf (file
, _(" [v32]"));
4227 /* Don't mix files with and without a leading underscore. */
4230 cris_elf_merge_private_bfd_data (ibfd
, obfd
)
4236 if (! _bfd_generic_verify_endian_match (ibfd
, obfd
))
4239 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4240 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4243 imach
= bfd_get_mach (ibfd
);
4245 if (! elf_flags_init (obfd
))
4247 /* This happens when ld starts out with a 'blank' output file. */
4248 elf_flags_init (obfd
) = TRUE
;
4250 /* We ignore the linker-set mach, and instead set it according to
4251 the first input file. This would also happen if we could
4252 somehow filter out the OUTPUT_ARCH () setting from elf.sc.
4253 This allows us to keep the same linker config across
4254 cris(v0..v10) and crisv32. The drawback is that we can't force
4255 the output type, which might be a sane thing to do for a
4256 v10+v32 compatibility object. */
4257 if (! bfd_set_arch_mach (obfd
, bfd_arch_cris
, imach
))
4261 if (bfd_get_symbol_leading_char (ibfd
)
4262 != bfd_get_symbol_leading_char (obfd
))
4264 (*_bfd_error_handler
)
4265 (bfd_get_symbol_leading_char (ibfd
) == '_'
4266 ? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
4267 : _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
4269 bfd_set_error (bfd_error_bad_value
);
4273 omach
= bfd_get_mach (obfd
);
4277 /* We can get an incompatible combination only if either is
4278 bfd_mach_cris_v32, and the other one isn't compatible. */
4279 if ((imach
== bfd_mach_cris_v32
4280 && omach
!= bfd_mach_cris_v10_v32
)
4281 || (omach
== bfd_mach_cris_v32
4282 && imach
!= bfd_mach_cris_v10_v32
))
4284 (*_bfd_error_handler
)
4285 ((imach
== bfd_mach_cris_v32
)
4286 ? _("%B contains CRIS v32 code, incompatible"
4287 " with previous objects")
4288 : _("%B contains non-CRIS-v32 code, incompatible"
4289 " with previous objects"),
4291 bfd_set_error (bfd_error_bad_value
);
4295 /* We don't have to check the case where the input is compatible
4296 with v10 and v32, because the output is already known to be set
4297 to the other (compatible) mach. */
4298 if (omach
== bfd_mach_cris_v10_v32
4299 && ! bfd_set_arch_mach (obfd
, bfd_arch_cris
, imach
))
4306 /* Do side-effects of e_flags copying to obfd. */
4309 cris_elf_copy_private_bfd_data (ibfd
, obfd
)
4313 /* Call the base function. */
4314 if (!_bfd_elf_copy_private_bfd_data (ibfd
, obfd
))
4317 /* If output is big-endian for some obscure reason, stop here. */
4318 if (_bfd_generic_verify_endian_match (ibfd
, obfd
) == FALSE
)
4321 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4322 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4325 /* Do what we really came here for. */
4326 return bfd_set_arch_mach (obfd
, bfd_arch_cris
, bfd_get_mach (ibfd
));
4329 static enum elf_reloc_type_class
4330 elf_cris_reloc_type_class (rela
)
4331 const Elf_Internal_Rela
*rela
;
4333 enum elf_cris_reloc_type r_type
= ELF32_R_TYPE (rela
->r_info
);
4336 case R_CRIS_RELATIVE
:
4337 return reloc_class_relative
;
4338 case R_CRIS_JUMP_SLOT
:
4339 return reloc_class_plt
;
4341 return reloc_class_copy
;
4343 return reloc_class_normal
;
4347 /* The elf_backend_got_elt_size worker. For one symbol, we can have up to
4348 two GOT entries from three types with two different sizes. We handle
4349 it as a single entry, so we can use the regular offset-calculation
4353 elf_cris_got_elt_size (bfd
*abfd ATTRIBUTE_UNUSED
,
4354 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4355 struct elf_link_hash_entry
*hr
,
4357 unsigned long symndx
)
4359 struct elf_link_hash_entry
*h
= (struct elf_link_hash_entry
*) hr
;
4362 /* We may have one regular GOT entry or up to two TLS GOT
4366 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4367 bfd_signed_vma
*local_got_refcounts
= elf_local_got_refcounts (ibfd
);
4369 BFD_ASSERT (local_got_refcounts
!= NULL
);
4371 if (local_got_refcounts
[LGOT_REG_NDX (symndx
)] > 0)
4373 /* We can't have a variable referred to both as a regular
4374 variable and through TLS relocs. */
4375 BFD_ASSERT (local_got_refcounts
[LGOT_DTP_NDX (symndx
)] == 0
4376 && local_got_refcounts
[LGOT_TPREL_NDX (symndx
)] == 0);
4380 if (local_got_refcounts
[LGOT_DTP_NDX (symndx
)] > 0)
4383 if (local_got_refcounts
[LGOT_TPREL_NDX (symndx
)] > 0)
4388 struct elf_cris_link_hash_entry
*hh
= elf_cris_hash_entry (h
);
4389 if (hh
->reg_got_refcount
> 0)
4391 /* The actual error-on-input is emitted elsewhere. */
4392 BFD_ASSERT (hh
->dtp_refcount
== 0 && hh
->tprel_refcount
== 0);
4396 if (hh
->dtp_refcount
> 0)
4399 if (hh
->tprel_refcount
> 0)
4403 /* We're only called when h->got.refcount is non-zero, so we must
4404 have a non-zero size. */
4405 BFD_ASSERT (eltsiz
!= 0);
4409 #define ELF_ARCH bfd_arch_cris
4410 #define ELF_TARGET_ID CRIS_ELF_DATA
4411 #define ELF_MACHINE_CODE EM_CRIS
4412 #define ELF_MAXPAGESIZE 0x2000
4414 #define TARGET_LITTLE_SYM bfd_elf32_cris_vec
4415 #define TARGET_LITTLE_NAME "elf32-cris"
4416 #define elf_symbol_leading_char 0
4418 #define elf_info_to_howto_rel NULL
4419 #define elf_info_to_howto cris_info_to_howto_rela
4420 #define elf_backend_relocate_section cris_elf_relocate_section
4421 #define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
4422 #define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
4423 #define elf_backend_plt_sym_val cris_elf_plt_sym_val
4424 #define elf_backend_check_relocs cris_elf_check_relocs
4425 #define elf_backend_grok_prstatus cris_elf_grok_prstatus
4426 #define elf_backend_grok_psinfo cris_elf_grok_psinfo
4428 #define elf_backend_can_gc_sections 1
4429 #define elf_backend_can_refcount 1
4431 #define elf_backend_object_p cris_elf_object_p
4432 #define elf_backend_final_write_processing \
4433 cris_elf_final_write_processing
4434 #define bfd_elf32_bfd_print_private_bfd_data \
4435 cris_elf_print_private_bfd_data
4436 #define bfd_elf32_bfd_merge_private_bfd_data \
4437 cris_elf_merge_private_bfd_data
4438 #define bfd_elf32_bfd_copy_private_bfd_data \
4439 cris_elf_copy_private_bfd_data
4441 #define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
4442 #define bfd_elf32_bfd_reloc_name_lookup cris_reloc_name_lookup
4444 #define bfd_elf32_bfd_link_hash_table_create \
4445 elf_cris_link_hash_table_create
4446 #define elf_backend_adjust_dynamic_symbol \
4447 elf_cris_adjust_dynamic_symbol
4448 #define elf_backend_copy_indirect_symbol \
4449 elf_cris_copy_indirect_symbol
4450 #define elf_backend_size_dynamic_sections \
4451 elf_cris_size_dynamic_sections
4452 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4453 #define elf_backend_finish_dynamic_symbol \
4454 elf_cris_finish_dynamic_symbol
4455 #define elf_backend_finish_dynamic_sections \
4456 elf_cris_finish_dynamic_sections
4457 #define elf_backend_create_dynamic_sections \
4458 _bfd_elf_create_dynamic_sections
4459 #define bfd_elf32_bfd_final_link \
4460 bfd_elf_gc_common_final_link
4461 #define elf_backend_hide_symbol elf_cris_hide_symbol
4462 #define elf_backend_reloc_type_class elf_cris_reloc_type_class
4464 #define elf_backend_want_got_plt 1
4465 #define elf_backend_plt_readonly 1
4466 #define elf_backend_want_plt_sym 0
4467 #define elf_backend_got_header_size 12
4468 #define elf_backend_got_elt_size elf_cris_got_elt_size
4470 /* Later, we my want to optimize RELA entries into REL entries for dynamic
4471 linking and libraries (if it's a win of any significance). Until then,
4472 take the easy route. */
4473 #define elf_backend_may_use_rel_p 0
4474 #define elf_backend_may_use_rela_p 1
4475 #define elf_backend_rela_normal 1
4477 #include "elf32-target.h"
4479 #undef TARGET_LITTLE_SYM
4480 #undef TARGET_LITTLE_NAME
4481 #undef elf_symbol_leading_char
4483 #define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
4484 #define TARGET_LITTLE_NAME "elf32-us-cris"
4485 #define elf_symbol_leading_char '_'
4487 #define elf32_bed elf32_us_cris_bed
4489 #include "elf32-target.h"