1 /* CRIS-specific support for 32-bit ELF.
2 Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
3 2010 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_pid
= 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_pid
= 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
)
1172 (_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
1175 cris_elf_howto_table
[r_type
].name
,
1177 bfd_set_error (bfd_error_bad_value
);
1183 if (sec
!= NULL
&& elf_discarded_section (sec
))
1185 /* For relocs against symbols from removed linkonce sections,
1186 or sections discarded by a linker script, we just want the
1187 section contents zeroed. Avoid any special processing. */
1188 _bfd_clear_contents (howto
, input_bfd
, contents
+ rel
->r_offset
);
1194 if (info
->relocatable
)
1199 case R_CRIS_16_GOTPLT
:
1200 case R_CRIS_32_GOTPLT
:
1201 /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
1202 but we require a PLT, and the PLT handling will take care of
1203 filling in the PLT-specific GOT entry. For the GOT offset,
1204 calculate it as we do when filling it in for the .got.plt
1205 section. If we don't have a PLT, punt to GOT handling. */
1207 && ((struct elf_cris_link_hash_entry
*) h
)->gotplt_offset
!= 0)
1210 = bfd_get_section_by_name (dynobj
, ".got.plt");
1213 BFD_ASSERT (h
->dynindx
!= -1);
1214 BFD_ASSERT (sgotplt
!= NULL
);
1217 = ((struct elf_cris_link_hash_entry
*) h
)->gotplt_offset
;
1219 relocation
= got_offset
;
1223 /* We didn't make a PLT entry for this symbol. Maybe everything is
1224 folded into the GOT. Other than folding, this happens when
1225 statically linking PIC code, or when using -Bsymbolic. Check
1226 that we instead have a GOT entry as done for us by
1227 elf_cris_adjust_dynamic_symbol, and drop through into the
1228 ordinary GOT cases. This must not happen for the
1229 executable, because any reference it does to a function
1230 that is satisfied by a DSO must generate a PLT. We assume
1231 these call-specific relocs don't address non-functions. */
1233 && (h
->got
.offset
== (bfd_vma
) -1
1237 && h
->root
.type
== bfd_link_hash_undefweak
)))))
1239 (*_bfd_error_handler
)
1240 ((h
->got
.offset
== (bfd_vma
) -1)
1241 ? _("%B, section %A: No PLT nor GOT for relocation %s"
1242 " against symbol `%s'")
1243 : _("%B, section %A: No PLT for relocation %s"
1244 " against symbol `%s'"),
1247 cris_elf_howto_table
[r_type
].name
,
1248 (symname
!= NULL
&& symname
[0] != '\0'
1249 ? symname
: _("[whose name is lost]")));
1251 /* FIXME: Perhaps blaming input is not the right thing to
1252 do; this is probably an internal error. But it is true
1253 that we didn't like that particular input. */
1254 bfd_set_error (bfd_error_bad_value
);
1259 /* The size of the actual relocation is not used here; we only
1260 fill in the GOT table here. */
1266 /* Note that despite using RELA relocations, the .got contents
1267 is always filled in with the link-relative relocation
1268 value; the addend. */
1272 off
= h
->got
.offset
;
1273 BFD_ASSERT (off
!= (bfd_vma
) -1);
1275 if (!elf_hash_table (info
)->dynamic_sections_created
1278 || h
->type
== STT_FUNC
1281 && (info
->symbolic
|| h
->dynindx
== -1)
1284 /* This wasn't checked above for ! info->shared, but
1285 must hold there if we get here; the symbol must
1286 be defined in the regular program or be undefweak
1287 or be a function or otherwise need a PLT. */
1288 BFD_ASSERT (!elf_hash_table (info
)->dynamic_sections_created
1291 || h
->type
== STT_FUNC
1293 || h
->root
.type
== bfd_link_hash_undefweak
);
1295 /* This is actually a static link, or it is a
1296 -Bsymbolic link and the symbol is defined locally,
1297 or is undefweak, or the symbol was forced to be
1298 local because of a version file, or we're not
1299 creating a dynamic object. We must initialize this
1300 entry in the global offset table. Since the offset
1301 must always be a multiple of 4, we use the least
1302 significant bit to record whether we have
1303 initialized it already.
1305 If this GOT entry should be runtime-initialized, we
1306 will create a .rela.got relocation entry to
1307 initialize the value. This is done in the
1308 finish_dynamic_symbol routine. */
1313 bfd_put_32 (output_bfd
, relocation
,
1314 sgot
->contents
+ off
);
1321 BFD_ASSERT (local_got_offsets
!= NULL
1322 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
1324 off
= local_got_offsets
[r_symndx
];
1326 /* The offset must always be a multiple of 4. We use
1327 the least significant bit to record whether we have
1328 already generated the necessary reloc. */
1333 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1337 Elf_Internal_Rela outrel
;
1340 if (srelgot
== NULL
)
1342 = bfd_get_section_by_name (dynobj
, ".rela.got");
1343 BFD_ASSERT (srelgot
!= NULL
);
1345 outrel
.r_offset
= (sgot
->output_section
->vma
1346 + sgot
->output_offset
1348 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_RELATIVE
);
1349 outrel
.r_addend
= relocation
;
1350 loc
= srelgot
->contents
;
1351 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1352 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1355 local_got_offsets
[r_symndx
] |= 1;
1359 relocation
= sgot
->output_offset
+ off
;
1360 if (rel
->r_addend
!= 0)
1362 /* We can't do anything for a relocation which is against
1363 a symbol *plus offset*. GOT holds relocations for
1364 symbols. Make this an error; the compiler isn't
1365 allowed to pass us these kinds of things. */
1367 (*_bfd_error_handler
)
1368 (_("%B, section %A: relocation %s with non-zero addend %d"
1369 " against local symbol"),
1372 cris_elf_howto_table
[r_type
].name
,
1375 (*_bfd_error_handler
)
1376 (_("%B, section %A: relocation %s with non-zero addend %d"
1377 " against symbol `%s'"),
1380 cris_elf_howto_table
[r_type
].name
,
1382 symname
[0] != '\0' ? symname
: _("[whose name is lost]"));
1384 bfd_set_error (bfd_error_bad_value
);
1390 case R_CRIS_32_GOTREL
:
1391 /* This relocation must only be performed against local symbols.
1392 It's also ok when we link a program and the symbol is either
1393 defined in an ordinary (non-DSO) object or is undefined weak. */
1395 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1399 && h
->root
.type
== bfd_link_hash_undefweak
))))
1401 (*_bfd_error_handler
)
1402 (_("%B, section %A: relocation %s is"
1403 " not allowed for global symbol: `%s'"),
1406 cris_elf_howto_table
[r_type
].name
,
1408 bfd_set_error (bfd_error_bad_value
);
1412 /* This can happen if we get a link error with the input ELF
1413 variant mismatching the output variant. Emit an error so
1414 it's noticed if it happens elsewhere. */
1417 (*_bfd_error_handler
)
1418 (_("%B, section %A: relocation %s with no GOT created"),
1421 cris_elf_howto_table
[r_type
].name
);
1422 bfd_set_error (bfd_error_bad_value
);
1426 /* This relocation is like a PC-relative one, except the
1427 reference point is the location of GOT. Note that
1428 sgot->output_offset is not involved in this calculation. We
1429 always want the start of entire .got section, not the
1430 position after the reserved header. */
1431 relocation
-= sgot
->output_section
->vma
;
1434 case R_CRIS_32_PLT_PCREL
:
1435 /* Relocation is to the entry for this symbol in the
1436 procedure linkage table. */
1438 /* Resolve a PLT_PCREL reloc against a local symbol directly,
1439 without using the procedure linkage table. */
1440 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
1443 if (h
->plt
.offset
== (bfd_vma
) -1
1446 /* We didn't make a PLT entry for this symbol. This
1447 happens when statically linking PIC code, or when
1448 using -Bsymbolic. */
1452 relocation
= (splt
->output_section
->vma
1453 + splt
->output_offset
1457 case R_CRIS_32_PLT_GOTREL
:
1458 /* Like R_CRIS_32_PLT_PCREL, but the reference point is the
1459 start of the .got section. See also comment at
1461 relocation
-= sgot
->output_section
->vma
;
1463 /* Resolve a PLT_GOTREL reloc against a local symbol directly,
1464 without using the procedure linkage table. */
1465 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
1468 if (h
->plt
.offset
== (bfd_vma
) -1
1471 /* We didn't make a PLT entry for this symbol. This
1472 happens when statically linking PIC code, or when
1473 using -Bsymbolic. */
1477 relocation
= (splt
->output_section
->vma
1478 + splt
->output_offset
1480 - sgot
->output_section
->vma
);
1483 case R_CRIS_8_PCREL
:
1484 case R_CRIS_16_PCREL
:
1485 case R_CRIS_32_PCREL
:
1486 /* If the symbol was local, we need no shlib-specific handling. */
1487 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
1488 || h
->dynindx
== -1)
1497 && (input_section
->flags
& SEC_ALLOC
) != 0
1498 && ((r_type
!= R_CRIS_8_PCREL
1499 && r_type
!= R_CRIS_16_PCREL
1500 && r_type
!= R_CRIS_32_PCREL
)
1502 || (h
!= NULL
&& !h
->def_regular
))))
1504 Elf_Internal_Rela outrel
;
1506 bfd_boolean skip
, relocate
;
1508 /* When generating a shared object, these relocations
1509 are copied into the output file to be resolved at run
1514 sreloc
= _bfd_elf_get_dynamic_reloc_section
1515 (input_bfd
, input_section
, /*rela?*/ TRUE
);
1516 /* The section should have been created in cris_elf_check_relocs,
1517 but that function will not be called for objects which fail in
1518 cris_elf_merge_private_bfd_data. */
1521 bfd_set_error (bfd_error_bad_value
);
1530 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
1532 if (outrel
.r_offset
== (bfd_vma
) -1)
1534 else if (outrel
.r_offset
== (bfd_vma
) -2
1535 /* For now, undefined weak symbols with non-default
1536 visibility (yielding 0), like exception info for
1537 discarded sections, will get a R_CRIS_NONE
1538 relocation rather than no relocation, because we
1539 notice too late that the symbol doesn't need a
1542 && h
->root
.type
== bfd_link_hash_undefweak
1543 && ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
))
1544 skip
= TRUE
, relocate
= TRUE
;
1545 outrel
.r_offset
+= (input_section
->output_section
->vma
1546 + input_section
->output_offset
);
1549 memset (&outrel
, 0, sizeof outrel
);
1550 /* h->dynindx may be -1 if the symbol was marked to
1553 && ((! info
->symbolic
&& h
->dynindx
!= -1)
1554 || !h
->def_regular
))
1556 BFD_ASSERT (h
->dynindx
!= -1);
1557 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
1558 outrel
.r_addend
= relocation
+ rel
->r_addend
;
1562 outrel
.r_addend
= relocation
+ rel
->r_addend
;
1564 if (r_type
== R_CRIS_32
)
1567 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_RELATIVE
);
1573 if (bfd_is_abs_section (sec
))
1575 else if (sec
== NULL
|| sec
->owner
== NULL
)
1577 bfd_set_error (bfd_error_bad_value
);
1584 /* We are turning this relocation into one
1585 against a section symbol. It would be
1586 proper to subtract the symbol's value,
1587 osec->vma, from the emitted reloc addend,
1588 but ld.so expects buggy relocs. */
1589 osec
= sec
->output_section
;
1590 indx
= elf_section_data (osec
)->dynindx
;
1593 osec
= htab
->root
.text_index_section
;
1594 indx
= elf_section_data (osec
)->dynindx
;
1596 BFD_ASSERT (indx
!= 0);
1599 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
1603 loc
= sreloc
->contents
;
1604 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1605 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1607 /* This reloc will be computed at runtime, so there's no
1608 need to do anything now, except for R_CRIS_32 relocations
1609 that have been turned into R_CRIS_RELATIVE. */
1616 case R_CRIS_16_DTPREL
:
1617 case R_CRIS_32_DTPREL
:
1618 /* This relocation must only be performed against local
1619 symbols, or to sections that are not loadable. It's also
1620 ok when we link a program and the symbol is defined in an
1621 ordinary (non-DSO) object (if it's undefined there, we've
1622 already seen an error). */
1624 && (input_section
->flags
& SEC_ALLOC
) != 0
1625 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1628 && h
->root
.type
!= bfd_link_hash_undefined
)))
1630 (*_bfd_error_handler
)
1631 ((h
->root
.type
== bfd_link_hash_undefined
)
1632 /* We shouldn't get here for GCC-emitted code. */
1633 ? _("%B, section %A: relocation %s has an undefined"
1634 " reference to `%s', perhaps a declaration mixup?")
1635 : ("%B, section %A: relocation %s is"
1636 " not allowed for `%s', a global symbol with default"
1637 " visibility, perhaps a declaration mixup?"),
1640 cris_elf_howto_table
[r_type
].name
,
1641 symname
!= NULL
&& symname
[0] != '\0'
1642 ? symname
: _("[whose name is lost]"));
1643 bfd_set_error (bfd_error_bad_value
);
1647 BFD_ASSERT ((input_section
->flags
& SEC_ALLOC
) == 0
1648 || htab
->dtpmod_refcount
!= 0);
1650 /* Fill in a R_CRIS_DTPMOD reloc at offset 3 if we haven't
1651 already done so. Note that we do this in .got.plt, not
1652 in .got, as .got.plt contains the first part, still the
1653 reloc is against .got, because the linker script directs
1654 (is required to direct) them both into .got. */
1655 if (htab
->dtpmod_refcount
> 0
1656 && (input_section
->flags
& SEC_ALLOC
) != 0)
1658 asection
*sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
1659 BFD_ASSERT (sgotplt
!= NULL
);
1663 Elf_Internal_Rela outrel
;
1666 if (srelgot
== NULL
)
1667 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
1668 BFD_ASSERT (srelgot
!= NULL
);
1669 loc
= srelgot
->contents
;
1670 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1672 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 12);
1673 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 16);
1674 outrel
.r_offset
= (sgotplt
->output_section
->vma
1675 + sgotplt
->output_offset
1677 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_DTPMOD
);
1678 outrel
.r_addend
= 0;
1679 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1683 /* For an executable, the GOT entry contents is known. */
1684 bfd_put_32 (output_bfd
, (bfd_vma
) 1, sgotplt
->contents
+ 12);
1685 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 16);
1688 /* Reverse the sign to mark that we've emitted the
1689 required GOT entry. */
1690 htab
->dtpmod_refcount
= - htab
->dtpmod_refcount
;
1693 /* The relocation is the offset from the start of the module
1694 TLS block to the (local) symbol. */
1695 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1696 ? 0 : elf_hash_table (info
)->tls_sec
->vma
;
1702 bfd_set_error (bfd_error_invalid_operation
);
1704 /* We've already informed in cris_elf_check_relocs that
1705 this is an error. */
1710 case R_CRIS_16_GOT_GD
:
1711 case R_CRIS_32_GOT_GD
:
1712 if (rel
->r_addend
!= 0)
1714 /* We can't do anything for a relocation which is against a
1715 symbol *plus offset*. The GOT holds relocations for
1716 symbols. Make this an error; the compiler isn't allowed
1717 to pass us these kinds of things. */
1718 (*_bfd_error_handler
)
1719 (_("%B, section %A: relocation %s with non-zero addend %d"
1720 " against symbol `%s'"),
1723 cris_elf_howto_table
[r_type
].name
,
1725 symname
[0] != '\0' ? symname
: _("[whose name is lost]"));
1727 bfd_set_error (bfd_error_bad_value
);
1732 && (h
== NULL
|| h
->def_regular
|| ELF_COMMON_DEF_P (h
)))
1734 /* Known contents of the GOT. */
1737 /* The symbol is defined in the program, so just write
1738 (1, known_tpoffset) into the GOT. */
1739 relocation
-= elf_hash_table (info
)->tls_sec
->vma
;
1743 off
= elf_cris_hash_entry (h
)->tprel_refcount
> 0
1744 ? h
->got
.offset
+ 4 : h
->got
.offset
;
1748 off
= local_got_offsets
[r_symndx
];
1749 if (local_got_offsets
[LGOT_TPREL_NDX (r_symndx
)])
1753 /* We use bit 1 of the offset as a flag for GOT entry with
1754 the R_CRIS_DTP reloc, setting it when we've emitted the
1755 GOT entry and reloc. Bit 0 is used for R_CRIS_32_TPREL
1764 local_got_offsets
[r_symndx
] |= 2;
1766 bfd_put_32 (output_bfd
, 1, sgot
->contents
+ off
);
1767 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
+ 4);
1772 relocation
= sgot
->output_offset
+ off
1773 + (r_type
== R_CRIS_32_GD
? sgot
->output_section
->vma
: 0);
1777 /* Not all parts of the GOT entry are known; emit a real
1782 off
= elf_cris_hash_entry (h
)->tprel_refcount
> 0
1783 ? h
->got
.offset
+ 4 : h
->got
.offset
;
1786 off
= local_got_offsets
[r_symndx
];
1787 if (local_got_offsets
[LGOT_TPREL_NDX (r_symndx
)])
1791 /* See above re bit 1 and bit 0 usage. */
1794 Elf_Internal_Rela outrel
;
1802 local_got_offsets
[r_symndx
] |= 2;
1804 /* Clear the target contents of the GOT (just as a
1805 gesture; it's already cleared on allocation): this
1806 relocation is not like the other dynrelocs. */
1807 bfd_put_32 (output_bfd
, 0, sgot
->contents
+ off
);
1808 bfd_put_32 (output_bfd
, 0, sgot
->contents
+ off
+ 4);
1810 if (srelgot
== NULL
)
1811 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
1812 BFD_ASSERT (srelgot
!= NULL
);
1814 if (h
!= NULL
&& h
->dynindx
!= -1)
1816 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_DTP
);
1821 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_DTP
);
1823 /* NULL if we had an error. */
1824 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1825 ? 0 : elf_hash_table (info
)->tls_sec
->vma
;
1828 outrel
.r_offset
= (sgot
->output_section
->vma
1829 + sgot
->output_offset
1831 outrel
.r_addend
= relocation
;
1832 loc
= srelgot
->contents
;
1833 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1835 /* NULL if we had an error. */
1836 if (srelgot
->contents
!= NULL
)
1837 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1842 relocation
= sgot
->output_offset
+ off
1843 + (r_type
== R_CRIS_32_GD
? sgot
->output_section
->vma
: 0);
1846 /* The GOT-relative offset to the GOT entry is the
1847 relocation, or for R_CRIS_32_GD, the actual address of
1854 bfd_set_error (bfd_error_invalid_operation
);
1856 /* We've already informed in cris_elf_check_relocs that
1857 this is an error. */
1862 case R_CRIS_32_GOT_TPREL
:
1863 case R_CRIS_16_GOT_TPREL
:
1864 if (rel
->r_addend
!= 0)
1866 /* We can't do anything for a relocation which is
1867 against a symbol *plus offset*. GOT holds
1868 relocations for symbols. Make this an error; the
1869 compiler isn't allowed to pass us these kinds of
1871 (*_bfd_error_handler
)
1872 (_("%B, section %A: relocation %s with non-zero addend %d"
1873 " against symbol `%s'"),
1876 cris_elf_howto_table
[r_type
].name
,
1878 symname
[0] != '\0' ? symname
: _("[whose name is lost]"));
1879 bfd_set_error (bfd_error_bad_value
);
1883 if (!info
->shared
&& (h
== NULL
|| h
->def_regular
))
1885 /* Known contents of the GOT. */
1888 /* The symbol is defined in the program, so just write
1889 the -prog_tls_size+known_tpoffset into the GOT. */
1890 relocation
-= elf_hash_table (info
)->tls_sec
->vma
;
1891 relocation
-= elf_hash_table (info
)->tls_size
;
1894 off
= h
->got
.offset
;
1896 off
= local_got_offsets
[r_symndx
];
1898 /* Bit 0 is used to mark whether we've emitted the required
1899 entry (and if needed R_CRIS_32_TPREL reloc). Bit 1
1900 is used similarly for R_CRIS_DTP, see above. */
1908 local_got_offsets
[r_symndx
] |= 1;
1910 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1915 relocation
= sgot
->output_offset
+ off
1916 + (r_type
== R_CRIS_32_IE
? sgot
->output_section
->vma
: 0);
1920 /* Emit a real relocation. */
1924 off
= h
->got
.offset
;
1926 off
= local_got_offsets
[r_symndx
];
1928 /* See above re usage of bit 0 and 1. */
1931 Elf_Internal_Rela outrel
;
1939 local_got_offsets
[r_symndx
] |= 1;
1941 if (srelgot
== NULL
)
1942 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
1943 BFD_ASSERT (srelgot
!= NULL
);
1945 if (h
!= NULL
&& h
->dynindx
!= -1)
1947 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_32_TPREL
);
1952 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_32_TPREL
);
1954 /* NULL if we had an error. */
1955 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1956 ? 0 : elf_hash_table (info
)->tls_sec
->vma
;
1959 /* Just "define" the initial contents in some
1960 semi-logical way. */
1961 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1963 outrel
.r_offset
= (sgot
->output_section
->vma
1964 + sgot
->output_offset
1966 outrel
.r_addend
= relocation
;
1967 loc
= srelgot
->contents
;
1968 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1969 /* NULL if we had an error. */
1970 if (srelgot
->contents
!= NULL
)
1971 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1976 relocation
= sgot
->output_offset
+ off
1977 + (r_type
== R_CRIS_32_IE
? sgot
->output_section
->vma
: 0);
1980 /* The GOT-relative offset to the GOT entry is the relocation,
1981 or for R_CRIS_32_GD, the actual address of the GOT entry. */
1984 case R_CRIS_16_TPREL
:
1985 case R_CRIS_32_TPREL
:
1986 /* This relocation must only be performed against symbols
1987 defined in an ordinary (non-DSO) object. */
1990 bfd_set_error (bfd_error_invalid_operation
);
1992 /* We've already informed in cris_elf_check_relocs that
1993 this is an error. */
1998 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1999 && !(h
->def_regular
|| ELF_COMMON_DEF_P (h
))
2000 /* If it's undefined, then an error message has already
2002 && h
->root
.type
!= bfd_link_hash_undefined
)
2004 (*_bfd_error_handler
)
2005 (_("%B, section %A: relocation %s is"
2006 " not allowed for symbol: `%s'"
2007 " which is defined outside the program,"
2008 " perhaps a declaration mixup?"),
2011 cris_elf_howto_table
[r_type
].name
,
2013 bfd_set_error (bfd_error_bad_value
);
2017 /* NULL if we had an error. */
2018 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
2020 : (elf_hash_table (info
)->tls_sec
->vma
2021 + elf_hash_table (info
)->tls_size
);
2023 /* The TLS-relative offset is the relocation. */
2031 r
= cris_final_link_relocate (howto
, input_bfd
, input_section
,
2032 contents
, rel
, relocation
);
2034 if (r
!= bfd_reloc_ok
)
2036 const char * msg
= (const char *) NULL
;
2040 case bfd_reloc_overflow
:
2041 r
= info
->callbacks
->reloc_overflow
2042 (info
, (h
? &h
->root
: NULL
), symname
, howto
->name
,
2043 (bfd_vma
) 0, input_bfd
, input_section
, rel
->r_offset
);
2044 if (additional_relocation_error_msg_count
> 0)
2046 additional_relocation_error_msg_count
--;
2049 case R_CRIS_16_GOTPLT
:
2052 /* Not just TLS is involved here, so we make
2053 generation and message depend on -fPIC/-fpic
2055 case R_CRIS_16_GOT_TPREL
:
2056 case R_CRIS_16_GOT_GD
:
2057 (*_bfd_error_handler
)
2058 (_("(too many global variables for -fpic:"
2059 " recompile with -fPIC)"));
2062 case R_CRIS_16_TPREL
:
2063 case R_CRIS_16_DTPREL
:
2064 (*_bfd_error_handler
)
2065 (_("(thread-local data too big for -fpic or"
2066 " -msmall-tls: recompile with -fPIC or"
2067 " -mno-small-tls)"));
2070 /* No known cause for overflow for other relocs. */
2077 case bfd_reloc_undefined
:
2078 r
= info
->callbacks
->undefined_symbol
2079 (info
, symname
, input_bfd
, input_section
, rel
->r_offset
,
2083 case bfd_reloc_outofrange
:
2084 msg
= _("internal error: out of range error");
2087 case bfd_reloc_notsupported
:
2088 msg
= _("internal error: unsupported relocation error");
2091 case bfd_reloc_dangerous
:
2092 msg
= _("internal error: dangerous relocation");
2096 msg
= _("internal error: unknown error");
2101 r
= info
->callbacks
->warning
2102 (info
, msg
, symname
, input_bfd
, input_section
, rel
->r_offset
);
2112 /* Finish up dynamic symbol handling. We set the contents of various
2113 dynamic sections here. */
2116 elf_cris_finish_dynamic_symbol (bfd
*output_bfd
,
2117 struct bfd_link_info
*info
,
2118 struct elf_link_hash_entry
*h
,
2119 Elf_Internal_Sym
*sym
)
2121 struct elf_cris_link_hash_table
* htab
;
2124 /* Where in the plt entry to put values. */
2125 int plt_off1
= 2, plt_off2
= 10, plt_off3
= 16;
2127 /* What offset to add to the distance to the first PLT entry for the
2128 value at plt_off3. */
2129 int plt_off3_value_bias
= 4;
2131 /* Where in the PLT entry the call-dynlink-stub is (happens to be same
2132 for PIC and non-PIC for v32 and pre-v32). */
2133 int plt_stub_offset
= 8;
2134 int plt_entry_size
= PLT_ENTRY_SIZE
;
2135 const bfd_byte
*plt_entry
= elf_cris_plt_entry
;
2136 const bfd_byte
*plt_pic_entry
= elf_cris_pic_plt_entry
;
2138 htab
= elf_cris_hash_table (info
);
2142 /* Adjust the various PLT entry offsets. */
2143 if (bfd_get_mach (output_bfd
) == bfd_mach_cris_v32
)
2147 plt_off3_value_bias
= -2;
2148 plt_stub_offset
= 12;
2149 plt_entry_size
= PLT_ENTRY_SIZE_V32
;
2150 plt_entry
= elf_cris_plt_entry_v32
;
2151 plt_pic_entry
= elf_cris_pic_plt_entry_v32
;
2154 dynobj
= elf_hash_table (info
)->dynobj
;
2156 if (h
->plt
.offset
!= (bfd_vma
) -1)
2164 bfd_vma gotplt_offset
2165 = elf_cris_hash_entry (h
)->gotplt_offset
;
2166 Elf_Internal_Rela rela
;
2168 bfd_boolean has_gotplt
= gotplt_offset
!= 0;
2170 /* Get the index in the .rela.plt relocations for the .got.plt
2171 entry that corresponds to this symbol.
2172 We have to count backwards here, and the result is only valid
2173 as an index into .rela.plt. We also have to undo the effect
2174 of the R_CRIS_DTPMOD entry at .got index 3 (offset 12 into
2175 .got.plt) for which gotplt_offset is adjusted, because while
2176 that entry goes into .got.plt, its relocation goes into
2177 .rela.got, not .rela.plt. (It's not PLT-specific; not to be
2178 processed as part of the runtime lazy .rela.plt relocation).
2179 FIXME: There be literal constants here... */
2180 bfd_vma rela_plt_index
2181 = (htab
->dtpmod_refcount
!= 0
2182 ? gotplt_offset
/4 - 2 - 3 : gotplt_offset
/4 - 3);
2184 /* Get the offset into the .got table of the entry that corresponds
2185 to this function. Note that we embed knowledge that "incoming"
2186 .got goes after .got.plt in the output without padding (pointer
2187 aligned). However, that knowledge is present in several other
2192 : h
->got
.offset
+ htab
->next_gotplt_entry
);
2194 /* This symbol has an entry in the procedure linkage table. Set it
2197 BFD_ASSERT (h
->dynindx
!= -1);
2199 splt
= bfd_get_section_by_name (dynobj
, ".plt");
2200 sgot
= bfd_get_section_by_name (dynobj
, ".got");
2201 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
2202 srela
= bfd_get_section_by_name (dynobj
, ".rela.plt");
2203 BFD_ASSERT (splt
!= NULL
&& sgotplt
!= NULL
2204 && (! has_gotplt
|| srela
!= NULL
));
2206 got_base
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
;
2208 /* Fill in the entry in the procedure linkage table. */
2211 memcpy (splt
->contents
+ h
->plt
.offset
, plt_entry
,
2214 /* We need to enter the absolute address of the GOT entry here. */
2215 bfd_put_32 (output_bfd
, got_base
+ got_offset
,
2216 splt
->contents
+ h
->plt
.offset
+ plt_off1
);
2220 memcpy (splt
->contents
+ h
->plt
.offset
, plt_pic_entry
,
2222 bfd_put_32 (output_bfd
, got_offset
,
2223 splt
->contents
+ h
->plt
.offset
+ plt_off1
);
2226 /* Fill in the plt entry and make a relocation, if this is a "real"
2230 /* Fill in the offset to the reloc table. */
2231 bfd_put_32 (output_bfd
,
2232 rela_plt_index
* sizeof (Elf32_External_Rela
),
2233 splt
->contents
+ h
->plt
.offset
+ plt_off2
);
2235 /* Fill in the offset to the first PLT entry, where to "jump". */
2236 bfd_put_32 (output_bfd
,
2237 - (h
->plt
.offset
+ plt_off3
+ plt_off3_value_bias
),
2238 splt
->contents
+ h
->plt
.offset
+ plt_off3
);
2240 /* Fill in the entry in the global offset table with the address of
2241 the relocating stub. */
2242 bfd_put_32 (output_bfd
,
2243 (splt
->output_section
->vma
2244 + splt
->output_offset
2247 sgotplt
->contents
+ got_offset
);
2249 /* Fill in the entry in the .rela.plt section. */
2250 rela
.r_offset
= (sgotplt
->output_section
->vma
2251 + sgotplt
->output_offset
2253 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_JUMP_SLOT
);
2255 loc
= srela
->contents
+ rela_plt_index
* sizeof (Elf32_External_Rela
);
2256 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2259 if (!h
->def_regular
)
2261 /* Mark the symbol as undefined, rather than as defined in
2262 the .plt section. Leave the value alone. */
2263 sym
->st_shndx
= SHN_UNDEF
;
2265 /* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't
2266 know whether resetting the value is significant; if it really
2267 is, rather than a quirk or bug in the sparc port, then I
2268 believe we'd see this elsewhere. */
2269 /* If the symbol is weak, we do need to clear the value.
2270 Otherwise, the PLT entry would provide a definition for
2271 the symbol even if the symbol wasn't defined anywhere,
2272 and so the symbol would never be NULL. */
2273 if (!h
->ref_regular_nonweak
)
2278 /* For an ordinary program, we emit .got relocs only for symbols that
2279 are in the dynamic-symbols table and are either defined by the
2280 program or are undefined weak symbols, or are function symbols
2281 where we do not output a PLT: the PLT reloc was output above and all
2282 references to the function symbol are redirected to the PLT. */
2283 if (h
->got
.offset
!= (bfd_vma
) -1
2284 && (elf_cris_hash_entry (h
)->reg_got_refcount
> 0)
2286 || (h
->dynindx
!= -1
2287 && h
->plt
.offset
== (bfd_vma
) -1
2289 && h
->root
.type
!= bfd_link_hash_undefweak
)))
2293 Elf_Internal_Rela rela
;
2297 /* This symbol has an entry in the global offset table. Set it up. */
2299 sgot
= bfd_get_section_by_name (dynobj
, ".got");
2300 srela
= bfd_get_section_by_name (dynobj
, ".rela.got");
2301 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
2303 rela
.r_offset
= (sgot
->output_section
->vma
2304 + sgot
->output_offset
2305 + (h
->got
.offset
&~ (bfd_vma
) 1));
2307 /* If this is a static link, or it is a -Bsymbolic link and the
2308 symbol is defined locally or was forced to be local because
2309 of a version file, we just want to emit a RELATIVE reloc.
2310 The entry in the global offset table will already have been
2311 initialized in the relocate_section function. */
2312 where
= sgot
->contents
+ (h
->got
.offset
&~ (bfd_vma
) 1);
2313 if (! elf_hash_table (info
)->dynamic_sections_created
2315 && (info
->symbolic
|| h
->dynindx
== -1)
2318 rela
.r_info
= ELF32_R_INFO (0, R_CRIS_RELATIVE
);
2319 rela
.r_addend
= bfd_get_signed_32 (output_bfd
, where
);
2323 bfd_put_32 (output_bfd
, (bfd_vma
) 0, where
);
2324 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_GLOB_DAT
);
2328 loc
= srela
->contents
;
2329 loc
+= srela
->reloc_count
++ * sizeof (Elf32_External_Rela
);
2330 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2336 Elf_Internal_Rela rela
;
2339 /* This symbol needs a copy reloc. Set it up. */
2341 BFD_ASSERT (h
->dynindx
!= -1
2342 && (h
->root
.type
== bfd_link_hash_defined
2343 || h
->root
.type
== bfd_link_hash_defweak
));
2345 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
,
2347 BFD_ASSERT (s
!= NULL
);
2349 rela
.r_offset
= (h
->root
.u
.def
.value
2350 + h
->root
.u
.def
.section
->output_section
->vma
2351 + h
->root
.u
.def
.section
->output_offset
);
2352 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_COPY
);
2354 loc
= s
->contents
+ s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
2355 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2358 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
2359 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
2360 || h
== elf_hash_table (info
)->hgot
)
2361 sym
->st_shndx
= SHN_ABS
;
2366 /* Finish up the dynamic sections. Do *not* emit relocs here, as their
2367 offsets were changed, as part of -z combreloc handling, from those we
2371 elf_cris_finish_dynamic_sections (output_bfd
, info
)
2373 struct bfd_link_info
*info
;
2379 dynobj
= elf_hash_table (info
)->dynobj
;
2381 sgot
= bfd_get_section_by_name (dynobj
, ".got.plt");
2382 BFD_ASSERT (sgot
!= NULL
);
2383 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
2385 if (elf_hash_table (info
)->dynamic_sections_created
)
2388 Elf32_External_Dyn
*dyncon
, *dynconend
;
2390 splt
= bfd_get_section_by_name (dynobj
, ".plt");
2391 BFD_ASSERT (splt
!= NULL
&& sdyn
!= NULL
);
2393 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
2394 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
2395 for (; dyncon
< dynconend
; dyncon
++)
2397 Elf_Internal_Dyn dyn
;
2400 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
2408 s
= bfd_get_section_by_name (output_bfd
, ".got");
2409 BFD_ASSERT (s
!= NULL
);
2410 dyn
.d_un
.d_ptr
= s
->vma
;
2411 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2415 /* Yes, we *can* have a .plt and no .plt.rela, for instance
2416 if all symbols are found in the .got (not .got.plt). */
2417 s
= bfd_get_section_by_name (output_bfd
, ".rela.plt");
2418 dyn
.d_un
.d_ptr
= s
!= NULL
? s
->vma
: 0;
2419 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2423 s
= bfd_get_section_by_name (output_bfd
, ".rela.plt");
2427 dyn
.d_un
.d_val
= s
->size
;
2428 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2432 /* The procedure linkage table relocs (DT_JMPREL) should
2433 not be included in the overall relocs (DT_RELA).
2434 Therefore, we override the DT_RELASZ entry here to
2435 make it not include the JMPREL relocs. Since the
2436 linker script arranges for .rela.plt to follow all
2437 other relocation sections, we don't have to worry
2438 about changing the DT_RELA entry. */
2439 s
= bfd_get_section_by_name (output_bfd
, ".rela.plt");
2441 dyn
.d_un
.d_val
-= s
->size
;
2442 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2447 /* Fill in the first entry in the procedure linkage table. */
2450 if (bfd_get_mach (output_bfd
) == bfd_mach_cris_v32
)
2453 memcpy (splt
->contents
, elf_cris_pic_plt0_entry_v32
,
2454 PLT_ENTRY_SIZE_V32
);
2457 memcpy (splt
->contents
, elf_cris_plt0_entry_v32
,
2458 PLT_ENTRY_SIZE_V32
);
2459 bfd_put_32 (output_bfd
,
2460 sgot
->output_section
->vma
2461 + sgot
->output_offset
+ 4,
2462 splt
->contents
+ 4);
2464 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
2465 = PLT_ENTRY_SIZE_V32
;
2471 memcpy (splt
->contents
, elf_cris_pic_plt0_entry
,
2475 memcpy (splt
->contents
, elf_cris_plt0_entry
,
2477 bfd_put_32 (output_bfd
,
2478 sgot
->output_section
->vma
2479 + sgot
->output_offset
+ 4,
2480 splt
->contents
+ 6);
2481 bfd_put_32 (output_bfd
,
2482 sgot
->output_section
->vma
2483 + sgot
->output_offset
+ 8,
2484 splt
->contents
+ 14);
2486 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
2493 /* Fill in the first three entries in the global offset table. */
2497 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
2499 bfd_put_32 (output_bfd
,
2500 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
2502 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
2503 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
2506 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
2511 /* Return the section that should be marked against GC for a given
2515 cris_elf_gc_mark_hook (asection
*sec
,
2516 struct bfd_link_info
*info
,
2517 Elf_Internal_Rela
*rel
,
2518 struct elf_link_hash_entry
*h
,
2519 Elf_Internal_Sym
*sym
)
2521 enum elf_cris_reloc_type r_type
= ELF32_R_TYPE (rel
->r_info
);
2525 case R_CRIS_GNU_VTINHERIT
:
2526 case R_CRIS_GNU_VTENTRY
:
2533 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
2536 /* Update the got entry reference counts for the section being removed. */
2539 cris_elf_gc_sweep_hook (bfd
*abfd
,
2540 struct bfd_link_info
*info
,
2542 const Elf_Internal_Rela
*relocs
)
2544 struct elf_cris_link_hash_table
* htab
;
2545 Elf_Internal_Shdr
*symtab_hdr
;
2546 struct elf_link_hash_entry
**sym_hashes
;
2547 bfd_signed_vma
*local_got_refcounts
;
2548 const Elf_Internal_Rela
*rel
, *relend
;
2553 if (info
->relocatable
)
2556 dynobj
= elf_hash_table (info
)->dynobj
;
2560 htab
= elf_cris_hash_table (info
);
2564 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2565 sym_hashes
= elf_sym_hashes (abfd
);
2566 local_got_refcounts
= elf_local_got_refcounts (abfd
);
2568 sgot
= bfd_get_section_by_name (dynobj
, ".got");
2569 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
2571 relend
= relocs
+ sec
->reloc_count
;
2572 for (rel
= relocs
; rel
< relend
; rel
++)
2574 unsigned long r_symndx
;
2575 struct elf_link_hash_entry
*h
= NULL
;
2576 bfd_signed_vma got_element_size
= 4;
2577 bfd_signed_vma
*specific_refcount
= NULL
;
2578 enum elf_cris_reloc_type r_type
;
2580 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2581 if (r_symndx
>= symtab_hdr
->sh_info
)
2583 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2584 while (h
->root
.type
== bfd_link_hash_indirect
2585 || h
->root
.type
== bfd_link_hash_warning
)
2586 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2589 r_type
= ELF32_R_TYPE (rel
->r_info
);
2594 case R_CRIS_16_GOTPLT
:
2595 case R_CRIS_32_GOTPLT
:
2596 specific_refcount
= h
!= NULL
2597 ? &((struct elf_cris_link_hash_entry
*) h
)->reg_got_refcount
2598 : &local_got_refcounts
[LGOT_REG_NDX (r_symndx
)];
2602 case R_CRIS_32_GOT_GD
:
2603 case R_CRIS_16_GOT_GD
:
2604 got_element_size
= 8;
2605 specific_refcount
= h
!= NULL
2606 ? &((struct elf_cris_link_hash_entry
*) h
)->dtp_refcount
2607 : &local_got_refcounts
[LGOT_DTP_NDX (r_symndx
)];
2611 case R_CRIS_16_GOT_TPREL
:
2612 case R_CRIS_32_GOT_TPREL
:
2613 specific_refcount
= h
!= NULL
2614 ? &((struct elf_cris_link_hash_entry
*) h
)->tprel_refcount
2615 : &local_got_refcounts
[LGOT_TPREL_NDX (r_symndx
)];
2626 case R_CRIS_16_GOT_TPREL
:
2627 case R_CRIS_32_GOT_TPREL
:
2628 case R_CRIS_32_GOT_GD
:
2629 case R_CRIS_16_GOT_GD
:
2634 /* If the counters are 0 when we got here, we've
2635 miscounted somehow somewhere, an internal error. */
2636 BFD_ASSERT (h
->got
.refcount
> 0);
2639 BFD_ASSERT (*specific_refcount
> 0);
2640 --*specific_refcount
;
2641 if (*specific_refcount
== 0)
2643 /* We don't need the .got entry any more. */
2644 sgot
->size
-= got_element_size
;
2645 srelgot
->size
-= sizeof (Elf32_External_Rela
);
2651 if (local_got_refcounts
!= NULL
)
2653 /* If the counters are 0 when we got here, we've
2654 miscounted somehow somewhere, an internal error. */
2655 BFD_ASSERT (local_got_refcounts
[r_symndx
] > 0);
2656 --local_got_refcounts
[r_symndx
];
2658 BFD_ASSERT (*specific_refcount
> 0);
2659 --*specific_refcount
;
2660 if (*specific_refcount
== 0)
2662 /* We don't need the .got entry any more. */
2663 sgot
->size
-= got_element_size
;
2665 srelgot
->size
-= sizeof (Elf32_External_Rela
);
2670 case R_CRIS_16_GOTPLT
:
2671 case R_CRIS_32_GOTPLT
:
2672 /* For local symbols, treat these like GOT relocs. */
2674 goto local_got_reloc
;
2677 case R_CRIS_32_PLT_GOTREL
:
2678 /* FIXME: We don't garbage-collect away the .got section. */
2679 if (local_got_refcounts
!= NULL
)
2680 local_got_refcounts
[-1]--;
2683 case R_CRIS_8_PCREL
:
2684 case R_CRIS_16_PCREL
:
2685 case R_CRIS_32_PCREL
:
2686 case R_CRIS_32_PLT_PCREL
:
2689 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2690 && h
->plt
.refcount
> 0)
2695 case R_CRIS_32_DTPREL
:
2696 /* This'd be a .dtpreld entry in e.g. debug info. */
2697 if ((sec
->flags
& SEC_ALLOC
) == 0)
2700 case R_CRIS_16_DTPREL
:
2701 htab
->dtpmod_refcount
--;
2702 if (htab
->dtpmod_refcount
== 0)
2703 htab
->next_gotplt_entry
-= 8;
2704 BFD_ASSERT (local_got_refcounts
!= NULL
);
2705 local_got_refcounts
[-1]--;
2716 /* The elf_backend_plt_sym_val hook function. */
2719 cris_elf_plt_sym_val (bfd_vma i
, const asection
*plt
,
2720 const arelent
*rel ATTRIBUTE_UNUSED
)
2722 bfd_size_type plt_entry_size
;
2725 = (bfd_get_mach (plt
->owner
) == bfd_mach_cris_v32
2726 ? PLT_ENTRY_SIZE_V32
: PLT_ENTRY_SIZE
);
2728 return plt
->vma
+ (i
+ 1) * plt_entry_size
;
2731 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
2732 entry but we found we will not create any. Called when we find we will
2733 not have any PLT for this symbol, by for example
2734 elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
2735 or elf_cris_size_dynamic_sections if no dynamic sections will be
2736 created (we're only linking static objects). */
2739 elf_cris_adjust_gotplt_to_got (h
, p
)
2740 struct elf_cris_link_hash_entry
*h
;
2743 struct bfd_link_info
*info
= (struct bfd_link_info
*) p
;
2745 if (h
->root
.root
.type
== bfd_link_hash_warning
)
2746 h
= (struct elf_cris_link_hash_entry
*) h
->root
.root
.u
.i
.link
;
2748 /* If nobody wanted a GOTPLT with this symbol, we're done. */
2749 if (h
->gotplt_refcount
<= 0)
2752 if (h
->reg_got_refcount
> 0)
2754 /* There's a GOT entry for this symbol. Just adjust the refcounts.
2755 Probably not necessary at this stage, but keeping them accurate
2756 helps avoiding surprises later. */
2757 h
->root
.got
.refcount
+= h
->gotplt_refcount
;
2758 h
->reg_got_refcount
+= h
->gotplt_refcount
;
2759 h
->gotplt_refcount
= 0;
2763 /* No GOT entry for this symbol. We need to create one. */
2764 bfd
*dynobj
= elf_hash_table (info
)->dynobj
;
2768 BFD_ASSERT (dynobj
!= NULL
);
2769 sgot
= bfd_get_section_by_name (dynobj
, ".got");
2770 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
2772 /* Put accurate refcounts there. */
2773 h
->root
.got
.refcount
+= h
->gotplt_refcount
;
2774 h
->reg_got_refcount
= h
->gotplt_refcount
;
2776 h
->gotplt_refcount
= 0;
2778 /* We always have a .got and a .rela.got section if there were
2779 GOTPLT relocs in input. */
2780 BFD_ASSERT (sgot
!= NULL
&& srelgot
!= NULL
);
2782 /* Allocate space in the .got section. */
2785 /* Allocate relocation space. */
2786 srelgot
->size
+= sizeof (Elf32_External_Rela
);
2792 /* Try to fold PLT entries with GOT entries. There are two cases when we
2795 - When all PLT references are GOTPLT references, and there are GOT
2796 references, and this is not the executable. We don't have to
2797 generate a PLT at all.
2799 - When there are both (ordinary) PLT references and GOT references,
2800 and this isn't the executable.
2801 We want to make the PLT reference use the ordinary GOT entry rather
2802 than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry,
2803 since the GOT entry will have to be resolved at startup anyway.
2805 Though the latter case is handled when room for the PLT is allocated,
2808 By folding into the GOT, we may need a round-trip to a PLT in the
2809 executable for calls, a loss in performance. Still, losing a
2810 reloc is a win in size and at least in start-up time.
2812 Note that this function is called before symbols are forced local by
2813 version scripts. The differing cases are handled by
2814 elf_cris_hide_symbol. */
2817 elf_cris_try_fold_plt_to_got (h
, p
)
2818 struct elf_cris_link_hash_entry
*h
;
2821 struct bfd_link_info
*info
= (struct bfd_link_info
*) p
;
2823 /* If there are no GOT references for this symbol, we can't fold any
2824 other reference so there's nothing to do. Likewise if there are no
2825 PLT references; GOTPLT references included. */
2826 if (h
->root
.got
.refcount
<= 0 || h
->root
.plt
.refcount
<= 0)
2829 /* GOTPLT relocs are supposed to be included into the PLT refcount. */
2830 BFD_ASSERT (h
->gotplt_refcount
<= h
->root
.plt
.refcount
);
2832 if (h
->gotplt_refcount
== h
->root
.plt
.refcount
)
2834 /* The only PLT references are GOTPLT references, and there are GOT
2835 references. Convert PLT to GOT references. */
2836 if (! elf_cris_adjust_gotplt_to_got (h
, info
))
2839 /* Clear the PLT references, so no PLT will be created. */
2840 h
->root
.plt
.offset
= (bfd_vma
) -1;
2846 /* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
2847 to use a GOT entry (and create one) rather than requiring a GOTPLT
2851 elf_cris_hide_symbol (info
, h
, force_local
)
2852 struct bfd_link_info
*info
;
2853 struct elf_link_hash_entry
*h
;
2854 bfd_boolean force_local
;
2856 elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry
*) h
, info
);
2858 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
2861 /* Adjust a symbol defined by a dynamic object and referenced by a
2862 regular object. The current definition is in some section of the
2863 dynamic object, but we're not including those sections. We have to
2864 change the definition to something the rest of the link can
2868 elf_cris_adjust_dynamic_symbol (struct bfd_link_info
*info
,
2869 struct elf_link_hash_entry
*h
)
2871 struct elf_cris_link_hash_table
* htab
;
2874 bfd_size_type plt_entry_size
;
2876 htab
= elf_cris_hash_table (info
);
2880 dynobj
= elf_hash_table (info
)->dynobj
;
2882 /* Make sure we know what is going on here. */
2883 BFD_ASSERT (dynobj
!= NULL
2885 || h
->u
.weakdef
!= NULL
2888 && !h
->def_regular
)));
2891 = (bfd_get_mach (dynobj
) == bfd_mach_cris_v32
2892 ? PLT_ENTRY_SIZE_V32
: PLT_ENTRY_SIZE
);
2894 /* If this is a function, put it in the procedure linkage table. We
2895 will fill in the contents of the procedure linkage table later,
2896 when we know the address of the .got section. */
2897 if (h
->type
== STT_FUNC
2900 /* If we link a program (not a DSO), we'll get rid of unnecessary
2901 PLT entries; we point to the actual symbols -- even for pic
2902 relocs, because a program built with -fpic should have the same
2903 result as one built without -fpic, specifically considering weak
2905 FIXME: m68k and i386 differ here, for unclear reasons. */
2909 /* This case can occur if we saw a PLT reloc in an input file,
2910 but the symbol was not defined by a dynamic object. In such
2911 a case, we don't actually need to build a procedure linkage
2912 table, and we can just do an absolute or PC reloc instead, or
2913 change a .got.plt index to a .got index for GOTPLT relocs. */
2914 BFD_ASSERT (h
->needs_plt
);
2916 h
->plt
.offset
= (bfd_vma
) -1;
2918 elf_cris_adjust_gotplt_to_got ((struct
2919 elf_cris_link_hash_entry
*) h
,
2923 /* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
2924 where a pointer-equivalent symbol was unimportant (i.e. more
2925 like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
2926 of the PLT. We can't for the executable, because the GOT
2927 entries will point to the PLT there (and be constant). */
2929 && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry
*)
2933 /* GC or folding may have rendered this entry unused. */
2934 if (h
->plt
.refcount
<= 0)
2937 h
->plt
.offset
= (bfd_vma
) -1;
2941 /* Make sure this symbol is output as a dynamic symbol. */
2942 if (h
->dynindx
== -1)
2944 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2948 s
= bfd_get_section_by_name (dynobj
, ".plt");
2949 BFD_ASSERT (s
!= NULL
);
2951 /* If this is the first .plt entry, make room for the special
2954 s
->size
+= plt_entry_size
;
2956 /* If this symbol is not defined in a regular file, and we are
2957 not generating a shared library, then set the symbol to this
2958 location in the .plt. */
2962 h
->root
.u
.def
.section
= s
;
2963 h
->root
.u
.def
.value
= s
->size
;
2966 /* If there's already a GOT entry, use that, not a .got.plt. A
2967 GOT field still has a reference count when we get here; it's
2968 not yet changed to an offset. We can't do this for an
2969 executable, because then the reloc associated with the PLT
2970 would get a non-PLT reloc pointing to the PLT. FIXME: Move
2971 this to elf_cris_try_fold_plt_to_got. */
2972 if (info
->shared
&& h
->got
.refcount
> 0)
2974 h
->got
.refcount
+= h
->plt
.refcount
;
2976 /* Mark the PLT offset to use the GOT entry by setting the low
2977 bit in the plt offset; it is always a multiple of
2978 plt_entry_size (which is at least a multiple of 2). */
2979 BFD_ASSERT ((s
->size
% plt_entry_size
) == 0);
2981 /* Change the PLT refcount to an offset. */
2982 h
->plt
.offset
= s
->size
;
2984 /* By not setting gotplt_offset (i.e. it remains at 0), we signal
2985 that the got entry should be used instead. */
2986 BFD_ASSERT (((struct elf_cris_link_hash_entry
*)
2987 h
)->gotplt_offset
== 0);
2989 /* Make room for this entry. */
2990 s
->size
+= plt_entry_size
;
2995 /* No GOT reference for this symbol; prepare for an ordinary PLT. */
2996 h
->plt
.offset
= s
->size
;
2998 /* Make room for this entry. */
2999 s
->size
+= plt_entry_size
;
3001 /* We also need to make an entry in the .got.plt section, which
3002 will be placed in the .got section by the linker script. */
3003 ((struct elf_cris_link_hash_entry
*) h
)->gotplt_offset
3004 = htab
->next_gotplt_entry
;
3005 htab
->next_gotplt_entry
+= 4;
3007 s
= bfd_get_section_by_name (dynobj
, ".got.plt");
3008 BFD_ASSERT (s
!= NULL
);
3011 /* We also need to make an entry in the .rela.plt section. */
3013 s
= bfd_get_section_by_name (dynobj
, ".rela.plt");
3014 BFD_ASSERT (s
!= NULL
);
3015 s
->size
+= sizeof (Elf32_External_Rela
);
3020 /* Reinitialize the plt offset now that it is not used as a reference
3022 h
->plt
.offset
= (bfd_vma
) -1;
3024 /* If this is a weak symbol, and there is a real definition, the
3025 processor independent code will have arranged for us to see the
3026 real definition first, and we can just use the same value. */
3027 if (h
->u
.weakdef
!= NULL
)
3029 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
3030 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
3031 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
3032 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
3036 /* This is a reference to a symbol defined by a dynamic object which
3037 is not a function. */
3039 /* If we are creating a shared library, we must presume that the
3040 only references to the symbol are via the global offset table.
3041 For such cases we need not do anything here; the relocations will
3042 be handled correctly by relocate_section. */
3046 /* If there are no references to this symbol that do not use the
3047 GOT, we don't need to generate a copy reloc. */
3048 if (!h
->non_got_ref
)
3053 (*_bfd_error_handler
) (_("dynamic variable `%s' is zero size"),
3054 h
->root
.root
.string
);
3058 /* We must allocate the symbol in our .dynbss section, which will
3059 become part of the .bss section of the executable. There will be
3060 an entry for this symbol in the .dynsym section. The dynamic
3061 object will contain position independent code, so all references
3062 from the dynamic object to this symbol will go through the global
3063 offset table. The dynamic linker will use the .dynsym entry to
3064 determine the address it must put in the global offset table, so
3065 both the dynamic object and the regular object will refer to the
3066 same memory location for the variable. */
3068 s
= bfd_get_section_by_name (dynobj
, ".dynbss");
3069 BFD_ASSERT (s
!= NULL
);
3071 /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
3072 copy the initial value out of the dynamic object and into the
3073 runtime process image. We need to remember the offset into the
3074 .rela.bss section we are going to use. */
3075 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
3079 srel
= bfd_get_section_by_name (dynobj
, ".rela.bss");
3080 BFD_ASSERT (srel
!= NULL
);
3081 srel
->size
+= sizeof (Elf32_External_Rela
);
3085 return _bfd_elf_adjust_dynamic_copy (h
, s
);
3088 /* Adjust our "subclass" elements for an indirect symbol. */
3091 elf_cris_copy_indirect_symbol (struct bfd_link_info
*info
,
3092 struct elf_link_hash_entry
*dir
,
3093 struct elf_link_hash_entry
*ind
)
3095 struct elf_cris_link_hash_entry
*edir
, *eind
;
3097 edir
= (struct elf_cris_link_hash_entry
*) dir
;
3098 eind
= (struct elf_cris_link_hash_entry
*) ind
;
3100 /* Only indirect symbols are replaced; we're not interested in
3101 updating any of EIND's fields for other symbols. */
3102 if (eind
->root
.root
.type
!= bfd_link_hash_indirect
)
3104 /* Still, we need to copy flags for e.g. weak definitions. */
3105 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3109 BFD_ASSERT (edir
->gotplt_offset
== 0 || eind
->gotplt_offset
== 0);
3111 #define XMOVOPZ(F, OP, Z) edir->F OP eind->F; eind->F = Z
3112 #define XMOVE(F) XMOVOPZ (F, +=, 0)
3113 if (eind
->pcrel_relocs_copied
!= NULL
)
3115 if (edir
->pcrel_relocs_copied
!= NULL
)
3117 struct elf_cris_pcrel_relocs_copied
**pp
;
3118 struct elf_cris_pcrel_relocs_copied
*p
;
3120 /* Add reloc counts against the indirect sym to the direct sym
3121 list. Merge any entries against the same section. */
3122 for (pp
= &eind
->pcrel_relocs_copied
; *pp
!= NULL
;)
3124 struct elf_cris_pcrel_relocs_copied
*q
;
3126 for (q
= edir
->pcrel_relocs_copied
; q
!= NULL
; q
= q
->next
)
3127 if (q
->section
== p
->section
)
3129 q
->count
+= p
->count
;
3136 *pp
= edir
->pcrel_relocs_copied
;
3138 XMOVOPZ (pcrel_relocs_copied
, =, NULL
);
3140 XMOVE (gotplt_refcount
);
3141 XMOVE (gotplt_offset
);
3142 XMOVE (reg_got_refcount
);
3143 XMOVE (tprel_refcount
);
3144 XMOVE (dtp_refcount
);
3148 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3151 /* Look through the relocs for a section during the first phase. */
3154 cris_elf_check_relocs (bfd
*abfd
,
3155 struct bfd_link_info
*info
,
3157 const Elf_Internal_Rela
*relocs
)
3159 struct elf_cris_link_hash_table
* htab
;
3161 Elf_Internal_Shdr
*symtab_hdr
;
3162 struct elf_link_hash_entry
**sym_hashes
;
3163 bfd_signed_vma
*local_got_refcounts
;
3164 const Elf_Internal_Rela
*rel
;
3165 const Elf_Internal_Rela
*rel_end
;
3170 if (info
->relocatable
)
3173 htab
= elf_cris_hash_table (info
);
3177 dynobj
= elf_hash_table (info
)->dynobj
;
3178 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3179 sym_hashes
= elf_sym_hashes (abfd
);
3180 local_got_refcounts
= elf_local_got_refcounts (abfd
);
3186 rel_end
= relocs
+ sec
->reloc_count
;
3187 for (rel
= relocs
; rel
< rel_end
; rel
++)
3189 struct elf_link_hash_entry
*h
;
3190 unsigned long r_symndx
;
3191 enum elf_cris_reloc_type r_type
;
3192 bfd_signed_vma got_element_size
= 4;
3193 unsigned long r_symndx_lgot
= INT_MAX
;
3195 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3196 if (r_symndx
< symtab_hdr
->sh_info
)
3199 r_symndx_lgot
= LGOT_REG_NDX (r_symndx
);
3203 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3204 while (h
->root
.type
== bfd_link_hash_indirect
3205 || h
->root
.type
== bfd_link_hash_warning
)
3206 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3209 r_type
= ELF32_R_TYPE (rel
->r_info
);
3211 /* Some relocs require linker-created sections; we need to hang them
3212 on the first input bfd we found that contained dynamic relocs. */
3215 case R_CRIS_32_DTPREL
:
3216 if ((sec
->flags
& SEC_ALLOC
) == 0)
3217 /* This'd be a .dtpreld entry in e.g. debug info. We have
3218 several different switch statements below, but none of
3219 that is needed; we need no preparations for resolving
3220 R_CRIS_32_DTPREL into a non-allocated section (debug
3221 info), so let's just move on to the next
3225 case R_CRIS_16_DTPREL
:
3226 /* The first .got.plt entry is right after the R_CRIS_DTPMOD
3227 entry at index 3. */
3228 if (htab
->dtpmod_refcount
== 0)
3229 htab
->next_gotplt_entry
+= 8;
3231 htab
->dtpmod_refcount
++;
3236 case R_CRIS_16_GOT_GD
:
3237 case R_CRIS_32_GOT_GD
:
3238 case R_CRIS_32_GOT_TPREL
:
3239 case R_CRIS_16_GOT_TPREL
:
3242 case R_CRIS_32_GOTREL
:
3243 case R_CRIS_32_PLT_GOTREL
:
3244 case R_CRIS_32_PLT_PCREL
:
3245 case R_CRIS_16_GOTPLT
:
3246 case R_CRIS_32_GOTPLT
:
3249 elf_hash_table (info
)->dynobj
= dynobj
= abfd
;
3251 /* We could handle this if we can get a handle on the
3252 output bfd in elf_cris_adjust_dynamic_symbol. Failing
3253 that, we must insist on dynobj being a specific mach. */
3254 if (bfd_get_mach (dynobj
) == bfd_mach_cris_v10_v32
)
3256 (*_bfd_error_handler
)
3257 (_("%B, section %A:\n v10/v32 compatible object %s"
3258 " must not contain a PIC relocation"),
3263 /* Create the .got section, so we can assume it's always
3264 present whenever there's a dynobj. */
3265 if (!_bfd_elf_create_got_section (dynobj
, info
))
3270 sgot
= bfd_get_section_by_name (dynobj
, ".got");
3272 if (local_got_refcounts
== NULL
)
3276 /* We use index local_got_refcounts[-1] to count all
3277 GOT-relative relocations that do not have explicit
3279 amt
= LGOT_ALLOC_NELTS_FOR (symtab_hdr
->sh_info
) + 1;
3280 amt
*= sizeof (bfd_signed_vma
);
3281 local_got_refcounts
= ((bfd_signed_vma
*) bfd_zalloc (abfd
, amt
));
3282 if (local_got_refcounts
== NULL
)
3285 local_got_refcounts
++;
3286 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
3294 /* Some relocs require a global offset table (but perhaps not a
3295 specific GOT entry). */
3298 case R_CRIS_16_DTPREL
:
3299 case R_CRIS_32_DTPREL
:
3300 /* Not requesting .got.rela for an executable: the contents
3301 of the first entry is constant there. For a shared
3302 library, we need .got.rela for the R_CRIS_DTPMOD
3303 relocation at index 3. */
3310 case R_CRIS_16_GOT_GD
:
3311 case R_CRIS_32_GOT_GD
:
3312 case R_CRIS_32_GOT_TPREL
:
3313 case R_CRIS_16_GOT_TPREL
:
3316 /* For R_CRIS_16_GOTPLT and R_CRIS_32_GOTPLT, we need a GOT
3317 entry only for local symbols. Unfortunately, we don't know
3318 until later on if there's a version script that forces the
3319 symbol local. We must have the .rela.got section in place
3320 before we know if the symbol looks global now, so we need
3321 to treat the reloc just like for R_CRIS_16_GOT and
3323 case R_CRIS_16_GOTPLT
:
3324 case R_CRIS_32_GOTPLT
:
3328 && (h
!= NULL
|| info
->shared
))
3330 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
3331 if (srelgot
== NULL
)
3333 srelgot
= bfd_make_section_with_flags (dynobj
,
3339 | SEC_LINKER_CREATED
3342 || !bfd_set_section_alignment (dynobj
, srelgot
, 2))
3352 /* Warn and error for invalid input. */
3356 case R_CRIS_32_TPREL
:
3357 case R_CRIS_16_TPREL
:
3361 (*_bfd_error_handler
)
3362 (_("%B, section %A:\n relocation %s not valid"
3363 " in a shared object;"
3364 " typically an option mixup, recompile with -fPIC"),
3367 cris_elf_howto_table
[r_type
].name
);
3368 /* Don't return FALSE here; we want messages for all of
3369 these and the error behavior is ungraceful
3379 case R_CRIS_16_GOT_GD
:
3380 case R_CRIS_32_GOT_GD
:
3381 /* These are requests for tls_index entries, run-time R_CRIS_DTP. */
3382 got_element_size
= 8;
3383 r_symndx_lgot
= LGOT_DTP_NDX (r_symndx
);
3386 case R_CRIS_16_DTPREL
:
3387 case R_CRIS_32_DTPREL
:
3388 /* These two just request for the constant-index
3389 module-local tls_index-sized GOT entry, which we add
3394 case R_CRIS_32_GOT_TPREL
:
3395 case R_CRIS_16_GOT_TPREL
:
3396 r_symndx_lgot
= LGOT_TPREL_NDX (r_symndx
);
3398 /* Those relocs also require that a DSO is of type
3399 Initial Exec. Like other targets, we don't reset this
3400 flag even if the relocs are GC:ed away. */
3402 info
->flags
|= DF_STATIC_TLS
;
3405 /* Let's list the other assembler-generated TLS-relocs too,
3406 just to show that they're not forgotten. */
3407 case R_CRIS_16_TPREL
:
3408 case R_CRIS_32_TPREL
:
3415 case R_CRIS_16_GOTPLT
:
3416 case R_CRIS_32_GOTPLT
:
3417 /* Mark that we need a GOT entry if the PLT entry (and its GOT
3418 entry) is eliminated. We can only do this for a non-local
3422 elf_cris_hash_entry (h
)->gotplt_refcount
++;
3423 goto handle_gotplt_reloc
;
3425 /* If h is NULL then this is a local symbol, and we must make a
3426 GOT entry for it, so handle it like a GOT reloc. */
3431 case R_CRIS_16_GOT_GD
:
3432 case R_CRIS_32_GOT_GD
:
3433 case R_CRIS_32_GOT_TPREL
:
3434 case R_CRIS_16_GOT_TPREL
:
3437 /* This symbol requires a global offset table entry. */
3440 if (h
->got
.refcount
== 0)
3442 /* Make sure this symbol is output as a dynamic symbol. */
3443 if (h
->dynindx
== -1)
3445 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
3450 /* Update the sum of reloc counts for this symbol. */
3457 if (elf_cris_hash_entry (h
)->reg_got_refcount
== 0)
3459 /* Allocate space in the .got section. */
3460 sgot
->size
+= got_element_size
;
3461 /* Allocate relocation space. */
3462 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3464 elf_cris_hash_entry (h
)->reg_got_refcount
++;
3468 case R_CRIS_16_GOT_GD
:
3469 case R_CRIS_32_GOT_GD
:
3470 if (elf_cris_hash_entry (h
)->dtp_refcount
== 0)
3472 /* Allocate space in the .got section. */
3473 sgot
->size
+= got_element_size
;
3474 /* Allocate relocation space. */
3475 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3477 elf_cris_hash_entry (h
)->dtp_refcount
++;
3481 case R_CRIS_32_GOT_TPREL
:
3482 case R_CRIS_16_GOT_TPREL
:
3483 if (elf_cris_hash_entry (h
)->tprel_refcount
== 0)
3485 /* Allocate space in the .got section. */
3486 sgot
->size
+= got_element_size
;
3487 /* Allocate relocation space. */
3488 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3490 elf_cris_hash_entry (h
)->tprel_refcount
++;
3500 /* This is a global offset table entry for a local symbol. */
3501 if (local_got_refcounts
[r_symndx_lgot
] == 0)
3503 sgot
->size
+= got_element_size
;
3506 /* If we are generating a shared object, we need
3507 to output a R_CRIS_RELATIVE reloc so that the
3508 dynamic linker can adjust this GOT entry.
3509 Similarly for non-regular got entries. */
3510 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3513 /* Update the reloc-specific count. */
3514 local_got_refcounts
[r_symndx_lgot
]++;
3516 /* This one is the sum of all the others. */
3517 local_got_refcounts
[r_symndx
]++;
3521 case R_CRIS_16_DTPREL
:
3522 case R_CRIS_32_DTPREL
:
3523 case R_CRIS_32_GOTREL
:
3524 /* This reference requires a global offset table.
3525 FIXME: The actual refcount isn't used currently; the .got
3526 section can't be removed if there were any references in the
3528 local_got_refcounts
[-1]++;
3531 handle_gotplt_reloc
:
3533 case R_CRIS_32_PLT_GOTREL
:
3534 /* This reference requires a global offset table. */
3535 local_got_refcounts
[-1]++;
3538 case R_CRIS_32_PLT_PCREL
:
3539 /* This symbol requires a procedure linkage table entry. We
3540 actually build the entry in adjust_dynamic_symbol,
3541 because this might be a case of linking PIC code which is
3542 never referenced by a dynamic object, in which case we
3543 don't need to generate a procedure linkage table entry
3546 /* Beware: if we'd check for visibility of the symbol here
3547 (and not marking the need for a PLT when non-visible), we'd
3548 get into trouble with keeping handling consistent with
3549 regards to relocs found before definition and GOTPLT
3550 handling. Eliminable PLT entries will be dealt with later
3562 /* Let's help debug shared library creation. Any of these
3563 relocs *can* be used in shared libs, but pages containing
3564 them cannot be shared, so they're not appropriate for
3565 common use. Don't warn for sections we don't care about,
3566 such as debug sections or non-constant sections. We
3567 can't help tables of (global) function pointers, for
3568 example, though they must be emitted in a (writable) data
3569 section to avoid having impure text sections. */
3571 && (sec
->flags
& SEC_ALLOC
) != 0
3572 && (sec
->flags
& SEC_READONLY
) != 0)
3574 /* FIXME: How do we make this optionally a warning only? */
3575 (*_bfd_error_handler
)
3576 (_("%B, section %A:\n relocation %s should not"
3577 " be used in a shared object; recompile with -fPIC"),
3580 cris_elf_howto_table
[r_type
].name
);
3586 /* Make sure a plt entry is created for this symbol if it
3587 turns out to be a function defined by a dynamic object. */
3588 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3592 /* If we are creating a shared library and this is not a local
3593 symbol, we need to copy the reloc into the shared library.
3594 However when linking with -Bsymbolic and this is a global
3595 symbol which is defined in an object we are including in the
3596 link (i.e., DEF_REGULAR is set), then we can resolve the
3597 reloc directly. At this point we have not seen all the input
3598 files, so it is possible that DEF_REGULAR is not set now but
3599 will be set later (it is never cleared). In case of a weak
3600 definition, DEF_REGULAR may be cleared later by a strong
3601 definition in a shared library. We account for that
3602 possibility below by storing information in the relocs_copied
3603 field of the hash table entry. A similar situation occurs
3604 when creating shared libraries and symbol visibility changes
3605 render the symbol local. */
3607 /* No need to do anything if we're not creating a shared object. */
3611 /* We don't need to handle relocs into sections not going into
3612 the "real" output. */
3613 if ((sec
->flags
& SEC_ALLOC
) == 0)
3616 /* We may need to create a reloc section in the dynobj and made room
3620 sreloc
= _bfd_elf_make_dynamic_reloc_section
3621 (sec
, dynobj
, 2, abfd
, /*rela?*/ TRUE
);
3627 if (sec
->flags
& SEC_READONLY
)
3628 info
->flags
|= DF_TEXTREL
;
3630 sreloc
->size
+= sizeof (Elf32_External_Rela
);
3633 case R_CRIS_8_PCREL
:
3634 case R_CRIS_16_PCREL
:
3635 case R_CRIS_32_PCREL
:
3640 /* Make sure a plt entry is created for this symbol if it
3641 turns out to be a function defined by a dynamic object. */
3642 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3646 /* If we are creating a shared library and this is not a local
3647 symbol, we need to copy the reloc into the shared library.
3648 However when linking with -Bsymbolic and this is a global
3649 symbol which is defined in an object we are including in the
3650 link (i.e., DEF_REGULAR is set), then we can resolve the
3651 reloc directly. At this point we have not seen all the input
3652 files, so it is possible that DEF_REGULAR is not set now but
3653 will be set later (it is never cleared). In case of a weak
3654 definition, DEF_REGULAR may be cleared later by a strong
3655 definition in a shared library. We account for that
3656 possibility below by storing information in the relocs_copied
3657 field of the hash table entry. A similar situation occurs
3658 when creating shared libraries and symbol visibility changes
3659 render the symbol local. */
3661 /* No need to do anything if we're not creating a shared object. */
3665 /* We don't need to handle relocs into sections not going into
3666 the "real" output. */
3667 if ((sec
->flags
& SEC_ALLOC
) == 0)
3670 /* If the symbol is local, then we know already we can
3671 eliminate the reloc. */
3672 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
3675 /* If this is with -Bsymbolic and the symbol isn't weak, and
3676 is defined by an ordinary object (the ones we include in
3677 this shared library) then we can also eliminate the
3678 reloc. See comment above for more eliminable cases which
3679 we can't identify at this time. */
3681 && h
->root
.type
!= bfd_link_hash_defweak
3685 /* We may need to create a reloc section in the dynobj and made room
3689 sreloc
= _bfd_elf_make_dynamic_reloc_section
3690 (sec
, dynobj
, 2, abfd
, /*rela?*/ TRUE
);
3696 sreloc
->size
+= sizeof (Elf32_External_Rela
);
3698 /* We count the number of PC relative relocations we have
3699 entered for this symbol, so that we can discard them
3700 again if the symbol is later defined by a regular object.
3701 We know that h is really a pointer to an
3702 elf_cris_link_hash_entry. */
3704 struct elf_cris_link_hash_entry
*eh
;
3705 struct elf_cris_pcrel_relocs_copied
*p
;
3707 eh
= elf_cris_hash_entry (h
);
3709 for (p
= eh
->pcrel_relocs_copied
; p
!= NULL
; p
= p
->next
)
3710 if (p
->section
== sec
)
3715 p
= ((struct elf_cris_pcrel_relocs_copied
*)
3716 bfd_alloc (dynobj
, (bfd_size_type
) sizeof *p
));
3719 p
->next
= eh
->pcrel_relocs_copied
;
3720 eh
->pcrel_relocs_copied
= p
;
3730 /* This relocation describes the C++ object vtable hierarchy.
3731 Reconstruct it for later use during GC. */
3732 case R_CRIS_GNU_VTINHERIT
:
3733 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3737 /* This relocation describes which C++ vtable entries are actually
3738 used. Record for later use during GC. */
3739 case R_CRIS_GNU_VTENTRY
:
3740 BFD_ASSERT (h
!= NULL
);
3742 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3746 case R_CRIS_16_TPREL
:
3747 case R_CRIS_32_TPREL
:
3748 /* Already warned above, when necessary. */
3752 /* Other relocs do not appear here. */
3753 bfd_set_error (bfd_error_bad_value
);
3761 /* Set the sizes of the dynamic sections. */
3764 elf_cris_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
3765 struct bfd_link_info
*info
)
3767 struct elf_cris_link_hash_table
* htab
;
3773 htab
= elf_cris_hash_table (info
);
3777 dynobj
= elf_hash_table (info
)->dynobj
;
3778 BFD_ASSERT (dynobj
!= NULL
);
3780 if (elf_hash_table (info
)->dynamic_sections_created
)
3782 /* Set the contents of the .interp section to the interpreter. */
3783 if (info
->executable
)
3785 s
= bfd_get_section_by_name (dynobj
, ".interp");
3786 BFD_ASSERT (s
!= NULL
);
3787 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3788 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3793 /* Adjust all expected GOTPLT uses to use a GOT entry instead. */
3794 elf_cris_link_hash_traverse (htab
, elf_cris_adjust_gotplt_to_got
,
3797 /* We may have created entries in the .rela.got section.
3798 However, if we are not creating the dynamic sections, we will
3799 not actually use these entries. Reset the size of .rela.got,
3800 which will cause it to get stripped from the output file
3802 s
= bfd_get_section_by_name (dynobj
, ".rela.got");
3807 /* If this is a -Bsymbolic shared link, then we need to discard all PC
3808 relative relocs against symbols defined in a regular object. We
3809 allocated space for them in the check_relocs routine, but we will not
3810 fill them in in the relocate_section routine. We also discard space
3811 for relocs that have become for local symbols due to symbol
3812 visibility changes. For programs, we discard space for relocs for
3813 symbols not referenced by any dynamic object. */
3815 elf_cris_link_hash_traverse (htab
,
3816 elf_cris_discard_excess_dso_dynamics
,
3819 elf_cris_link_hash_traverse (htab
,
3820 elf_cris_discard_excess_program_dynamics
,
3823 /* The check_relocs and adjust_dynamic_symbol entry points have
3824 determined the sizes of the various dynamic sections. Allocate
3828 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3832 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3835 /* It's OK to base decisions on the section name, because none
3836 of the dynobj section names depend upon the input files. */
3837 name
= bfd_get_section_name (dynobj
, s
);
3839 if (strcmp (name
, ".plt") == 0)
3841 /* Remember whether there is a PLT. */
3844 else if (strcmp (name
, ".got.plt") == 0)
3846 /* The .got.plt contains the .got header as well as the
3847 actual .got.plt contents. The .got header may contain a
3848 R_CRIS_DTPMOD entry at index 3. */
3849 s
->size
+= htab
->dtpmod_refcount
!= 0
3852 else if (CONST_STRNEQ (name
, ".rela"))
3854 if (strcmp (name
, ".rela.got") == 0
3855 && htab
->dtpmod_refcount
!= 0
3857 s
->size
+= sizeof (Elf32_External_Rela
);
3861 /* Remember whether there are any reloc sections other
3863 if (strcmp (name
, ".rela.plt") != 0)
3866 /* We use the reloc_count field as a counter if we need
3867 to copy relocs into the output file. */
3871 else if (! CONST_STRNEQ (name
, ".got")
3872 && strcmp (name
, ".dynbss") != 0)
3874 /* It's not one of our sections, so don't allocate space. */
3880 /* If we don't need this section, strip it from the
3881 output file. This is mostly to handle .rela.bss and
3882 .rela.plt. We must create both sections in
3883 create_dynamic_sections, because they must be created
3884 before the linker maps input sections to output
3885 sections. The linker does that before
3886 adjust_dynamic_symbol is called, and it is that
3887 function which decides whether anything needs to go
3888 into these sections. */
3889 s
->flags
|= SEC_EXCLUDE
;
3893 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
3896 /* Allocate memory for the section contents. We use bfd_zalloc here
3897 in case unused entries are not reclaimed before the section's
3898 contents are written out. This should not happen, but this way
3899 if it does, we will not write out garbage. For reloc sections,
3900 this will make entries have the type R_CRIS_NONE. */
3901 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
3902 if (s
->contents
== NULL
)
3906 if (elf_hash_table (info
)->dynamic_sections_created
)
3908 /* Add some entries to the .dynamic section. We fill in the
3909 values later, in elf_cris_finish_dynamic_sections, but we
3910 must add the entries now so that we get the correct size for
3911 the .dynamic section. The DT_DEBUG entry is filled in by the
3912 dynamic linker and used by the debugger. */
3913 #define add_dynamic_entry(TAG, VAL) \
3914 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3918 if (!add_dynamic_entry (DT_DEBUG
, 0))
3924 if (!add_dynamic_entry (DT_PLTGOT
, 0)
3925 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
3926 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3927 || !add_dynamic_entry (DT_JMPREL
, 0))
3933 if (!add_dynamic_entry (DT_RELA
, 0)
3934 || !add_dynamic_entry (DT_RELASZ
, 0)
3935 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
3939 if ((info
->flags
& DF_TEXTREL
) != 0)
3941 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3943 info
->flags
|= DF_TEXTREL
;
3946 #undef add_dynamic_entry
3951 /* This function is called via elf_cris_link_hash_traverse if we are
3952 creating a shared object. In the -Bsymbolic case, it discards the
3953 space allocated to copy PC relative relocs against symbols which
3954 are defined in regular objects. For the normal non-symbolic case,
3955 we also discard space for relocs that have become local due to
3956 symbol visibility changes. We allocated space for them in the
3957 check_relocs routine, but we won't fill them in in the
3958 relocate_section routine. */
3961 elf_cris_discard_excess_dso_dynamics (h
, inf
)
3962 struct elf_cris_link_hash_entry
*h
;
3965 struct elf_cris_pcrel_relocs_copied
*s
;
3966 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
3968 if (h
->root
.root
.type
== bfd_link_hash_warning
)
3969 h
= (struct elf_cris_link_hash_entry
*) h
->root
.root
.u
.i
.link
;
3971 /* If a symbol has been forced local or we have found a regular
3972 definition for the symbolic link case, then we won't be needing
3974 if (h
->root
.def_regular
3975 && (h
->root
.forced_local
3978 for (s
= h
->pcrel_relocs_copied
; s
!= NULL
; s
= s
->next
)
3981 = _bfd_elf_get_dynamic_reloc_section (s
->section
->owner
,
3984 sreloc
->size
-= s
->count
* sizeof (Elf32_External_Rela
);
3989 /* If we have accounted for PC-relative relocs for read-only
3990 sections, now is the time to warn for them. We can't do it in
3991 cris_elf_check_relocs, because we don't know the status of all
3992 symbols at that time (and it's common to force symbols local
3995 for (s
= h
->pcrel_relocs_copied
; s
!= NULL
; s
= s
->next
)
3996 if ((s
->section
->flags
& SEC_READONLY
) != 0)
3998 /* FIXME: How do we make this optionally a warning only? */
3999 (*_bfd_error_handler
)
4000 (_("%B, section `%A', to symbol `%s':\n"
4001 " relocation %s should not be used"
4002 " in a shared object; recompile with -fPIC"),
4005 h
->root
.root
.root
.string
,
4006 cris_elf_howto_table
[s
->r_type
].name
);
4008 info
->flags
|= DF_TEXTREL
;
4014 /* This function is called via elf_cris_link_hash_traverse if we are *not*
4015 creating a shared object. We discard space for relocs for symbols put
4016 in the .got, but which we found we do not have to resolve at run-time. */
4019 elf_cris_discard_excess_program_dynamics (h
, inf
)
4020 struct elf_cris_link_hash_entry
*h
;
4023 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
4025 if (h
->root
.root
.type
== bfd_link_hash_warning
)
4026 h
= (struct elf_cris_link_hash_entry
*) h
->root
.root
.u
.i
.link
;
4028 /* If we're not creating a shared library and have a symbol which is
4029 referred to by .got references, but the symbol is defined locally,
4030 (or rather, not defined by a DSO) then lose the reloc for the .got
4031 (don't allocate room for it). Likewise for relocs for something
4032 for which we create a PLT. */
4033 if (!h
->root
.def_dynamic
4034 || h
->root
.plt
.refcount
> 0)
4036 if (h
->reg_got_refcount
> 0
4037 /* The size of this section is only valid and in sync with the
4038 various reference counts if we do dynamic; don't decrement it
4040 && elf_hash_table (info
)->dynamic_sections_created
)
4042 bfd
*dynobj
= elf_hash_table (info
)->dynobj
;
4045 BFD_ASSERT (dynobj
!= NULL
);
4047 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
4049 BFD_ASSERT (srelgot
!= NULL
);
4051 srelgot
->size
-= sizeof (Elf32_External_Rela
);
4054 /* If the locally-defined symbol isn't used by a DSO, then we don't
4055 have to export it as a dynamic symbol. This was already done for
4056 functions; doing this for all symbols would presumably not
4057 introduce new problems. Of course we don't do this if we're
4058 exporting all dynamic symbols. */
4059 if (! info
->export_dynamic
4060 && h
->root
.dynindx
!= -1
4061 && !h
->root
.def_dynamic
4062 && !h
->root
.ref_dynamic
)
4064 h
->root
.dynindx
= -1;
4065 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
4066 h
->root
.dynstr_index
);
4073 /* Reject a file depending on presence and expectation of prefixed
4074 underscores on symbols. */
4077 cris_elf_object_p (abfd
)
4080 if (! cris_elf_set_mach_from_flags (abfd
, elf_elfheader (abfd
)->e_flags
))
4083 if ((elf_elfheader (abfd
)->e_flags
& EF_CRIS_UNDERSCORE
))
4084 return (bfd_get_symbol_leading_char (abfd
) == '_');
4086 return (bfd_get_symbol_leading_char (abfd
) == 0);
4089 /* Mark presence or absence of leading underscore. Set machine type
4090 flags from mach type. */
4093 cris_elf_final_write_processing (abfd
, linker
)
4095 bfd_boolean linker ATTRIBUTE_UNUSED
;
4097 unsigned long e_flags
= elf_elfheader (abfd
)->e_flags
;
4099 e_flags
&= ~EF_CRIS_UNDERSCORE
;
4100 if (bfd_get_symbol_leading_char (abfd
) == '_')
4101 e_flags
|= EF_CRIS_UNDERSCORE
;
4103 switch (bfd_get_mach (abfd
))
4105 case bfd_mach_cris_v0_v10
:
4106 e_flags
|= EF_CRIS_VARIANT_ANY_V0_V10
;
4109 case bfd_mach_cris_v10_v32
:
4110 e_flags
|= EF_CRIS_VARIANT_COMMON_V10_V32
;
4113 case bfd_mach_cris_v32
:
4114 e_flags
|= EF_CRIS_VARIANT_V32
;
4118 _bfd_abort (__FILE__
, __LINE__
,
4119 _("Unexpected machine number"));
4122 elf_elfheader (abfd
)->e_flags
= e_flags
;
4125 /* Set the mach type from e_flags value. */
4128 cris_elf_set_mach_from_flags (abfd
, flags
)
4130 unsigned long flags
;
4132 switch (flags
& EF_CRIS_VARIANT_MASK
)
4134 case EF_CRIS_VARIANT_ANY_V0_V10
:
4135 bfd_default_set_arch_mach (abfd
, bfd_arch_cris
, bfd_mach_cris_v0_v10
);
4138 case EF_CRIS_VARIANT_V32
:
4139 bfd_default_set_arch_mach (abfd
, bfd_arch_cris
, bfd_mach_cris_v32
);
4142 case EF_CRIS_VARIANT_COMMON_V10_V32
:
4143 bfd_default_set_arch_mach (abfd
, bfd_arch_cris
, bfd_mach_cris_v10_v32
);
4147 /* Since we don't recognize them, we obviously can't support them
4148 with this code; we'd have to require that all future handling
4149 would be optional. */
4150 bfd_set_error (bfd_error_wrong_format
);
4157 /* Display the flags field. */
4160 cris_elf_print_private_bfd_data (abfd
, ptr
)
4164 FILE *file
= (FILE *) ptr
;
4166 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4168 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4170 fprintf (file
, _("private flags = %lx:"), elf_elfheader (abfd
)->e_flags
);
4172 if (elf_elfheader (abfd
)->e_flags
& EF_CRIS_UNDERSCORE
)
4173 fprintf (file
, _(" [symbols have a _ prefix]"));
4174 if ((elf_elfheader (abfd
)->e_flags
& EF_CRIS_VARIANT_MASK
)
4175 == EF_CRIS_VARIANT_COMMON_V10_V32
)
4176 fprintf (file
, _(" [v10 and v32]"));
4177 if ((elf_elfheader (abfd
)->e_flags
& EF_CRIS_VARIANT_MASK
)
4178 == EF_CRIS_VARIANT_V32
)
4179 fprintf (file
, _(" [v32]"));
4185 /* Don't mix files with and without a leading underscore. */
4188 cris_elf_merge_private_bfd_data (ibfd
, obfd
)
4194 if (! _bfd_generic_verify_endian_match (ibfd
, obfd
))
4197 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4198 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4201 imach
= bfd_get_mach (ibfd
);
4203 if (! elf_flags_init (obfd
))
4205 /* This happens when ld starts out with a 'blank' output file. */
4206 elf_flags_init (obfd
) = TRUE
;
4208 /* We ignore the linker-set mach, and instead set it according to
4209 the first input file. This would also happen if we could
4210 somehow filter out the OUTPUT_ARCH () setting from elf.sc.
4211 This allows us to keep the same linker config across
4212 cris(v0..v10) and crisv32. The drawback is that we can't force
4213 the output type, which might be a sane thing to do for a
4214 v10+v32 compatibility object. */
4215 if (! bfd_set_arch_mach (obfd
, bfd_arch_cris
, imach
))
4219 if (bfd_get_symbol_leading_char (ibfd
)
4220 != bfd_get_symbol_leading_char (obfd
))
4222 (*_bfd_error_handler
)
4223 (bfd_get_symbol_leading_char (ibfd
) == '_'
4224 ? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
4225 : _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
4227 bfd_set_error (bfd_error_bad_value
);
4231 omach
= bfd_get_mach (obfd
);
4235 /* We can get an incompatible combination only if either is
4236 bfd_mach_cris_v32, and the other one isn't compatible. */
4237 if ((imach
== bfd_mach_cris_v32
4238 && omach
!= bfd_mach_cris_v10_v32
)
4239 || (omach
== bfd_mach_cris_v32
4240 && imach
!= bfd_mach_cris_v10_v32
))
4242 (*_bfd_error_handler
)
4243 ((imach
== bfd_mach_cris_v32
)
4244 ? _("%B contains CRIS v32 code, incompatible"
4245 " with previous objects")
4246 : _("%B contains non-CRIS-v32 code, incompatible"
4247 " with previous objects"),
4249 bfd_set_error (bfd_error_bad_value
);
4253 /* We don't have to check the case where the input is compatible
4254 with v10 and v32, because the output is already known to be set
4255 to the other (compatible) mach. */
4256 if (omach
== bfd_mach_cris_v10_v32
4257 && ! bfd_set_arch_mach (obfd
, bfd_arch_cris
, imach
))
4264 /* Do side-effects of e_flags copying to obfd. */
4267 cris_elf_copy_private_bfd_data (ibfd
, obfd
)
4271 /* Call the base function. */
4272 if (!_bfd_elf_copy_private_bfd_data (ibfd
, obfd
))
4275 /* If output is big-endian for some obscure reason, stop here. */
4276 if (_bfd_generic_verify_endian_match (ibfd
, obfd
) == FALSE
)
4279 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4280 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4283 /* Do what we really came here for. */
4284 return bfd_set_arch_mach (obfd
, bfd_arch_cris
, bfd_get_mach (ibfd
));
4287 static enum elf_reloc_type_class
4288 elf_cris_reloc_type_class (rela
)
4289 const Elf_Internal_Rela
*rela
;
4291 enum elf_cris_reloc_type r_type
= ELF32_R_TYPE (rela
->r_info
);
4294 case R_CRIS_RELATIVE
:
4295 return reloc_class_relative
;
4296 case R_CRIS_JUMP_SLOT
:
4297 return reloc_class_plt
;
4299 return reloc_class_copy
;
4301 return reloc_class_normal
;
4305 /* The elf_backend_got_elt_size worker. For one symbol, we can have up to
4306 two GOT entries from three types with two different sizes. We handle
4307 it as a single entry, so we can use the regular offset-calculation
4311 elf_cris_got_elt_size (bfd
*abfd ATTRIBUTE_UNUSED
,
4312 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4313 struct elf_link_hash_entry
*hr
,
4315 unsigned long symndx
)
4317 struct elf_link_hash_entry
*h
= (struct elf_link_hash_entry
*) hr
;
4320 /* We may have one regular GOT entry or up to two TLS GOT
4324 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4325 bfd_signed_vma
*local_got_refcounts
= elf_local_got_refcounts (ibfd
);
4327 BFD_ASSERT (local_got_refcounts
!= NULL
);
4329 if (local_got_refcounts
[LGOT_REG_NDX (symndx
)] > 0)
4331 /* We can't have a variable referred to both as a regular
4332 variable and through TLS relocs. */
4333 BFD_ASSERT (local_got_refcounts
[LGOT_DTP_NDX (symndx
)] == 0
4334 && local_got_refcounts
[LGOT_TPREL_NDX (symndx
)] == 0);
4338 if (local_got_refcounts
[LGOT_DTP_NDX (symndx
)] > 0)
4341 if (local_got_refcounts
[LGOT_TPREL_NDX (symndx
)] > 0)
4346 struct elf_cris_link_hash_entry
*hh
= elf_cris_hash_entry (h
);
4347 if (hh
->reg_got_refcount
> 0)
4349 /* The actual error-on-input is emitted elsewhere. */
4350 BFD_ASSERT (hh
->dtp_refcount
== 0 && hh
->tprel_refcount
== 0);
4354 if (hh
->dtp_refcount
> 0)
4357 if (hh
->tprel_refcount
> 0)
4361 /* We're only called when h->got.refcount is non-zero, so we must
4362 have a non-zero size. */
4363 BFD_ASSERT (eltsiz
!= 0);
4367 #define ELF_ARCH bfd_arch_cris
4368 #define ELF_MACHINE_CODE EM_CRIS
4369 #define ELF_MAXPAGESIZE 0x2000
4371 #define TARGET_LITTLE_SYM bfd_elf32_cris_vec
4372 #define TARGET_LITTLE_NAME "elf32-cris"
4373 #define elf_symbol_leading_char 0
4375 #define elf_info_to_howto_rel NULL
4376 #define elf_info_to_howto cris_info_to_howto_rela
4377 #define elf_backend_relocate_section cris_elf_relocate_section
4378 #define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
4379 #define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
4380 #define elf_backend_plt_sym_val cris_elf_plt_sym_val
4381 #define elf_backend_check_relocs cris_elf_check_relocs
4382 #define elf_backend_grok_prstatus cris_elf_grok_prstatus
4383 #define elf_backend_grok_psinfo cris_elf_grok_psinfo
4385 #define elf_backend_can_gc_sections 1
4386 #define elf_backend_can_refcount 1
4388 #define elf_backend_object_p cris_elf_object_p
4389 #define elf_backend_final_write_processing \
4390 cris_elf_final_write_processing
4391 #define bfd_elf32_bfd_print_private_bfd_data \
4392 cris_elf_print_private_bfd_data
4393 #define bfd_elf32_bfd_merge_private_bfd_data \
4394 cris_elf_merge_private_bfd_data
4395 #define bfd_elf32_bfd_copy_private_bfd_data \
4396 cris_elf_copy_private_bfd_data
4398 #define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
4399 #define bfd_elf32_bfd_reloc_name_lookup cris_reloc_name_lookup
4401 #define bfd_elf32_bfd_link_hash_table_create \
4402 elf_cris_link_hash_table_create
4403 #define elf_backend_adjust_dynamic_symbol \
4404 elf_cris_adjust_dynamic_symbol
4405 #define elf_backend_copy_indirect_symbol \
4406 elf_cris_copy_indirect_symbol
4407 #define elf_backend_size_dynamic_sections \
4408 elf_cris_size_dynamic_sections
4409 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4410 #define elf_backend_finish_dynamic_symbol \
4411 elf_cris_finish_dynamic_symbol
4412 #define elf_backend_finish_dynamic_sections \
4413 elf_cris_finish_dynamic_sections
4414 #define elf_backend_create_dynamic_sections \
4415 _bfd_elf_create_dynamic_sections
4416 #define bfd_elf32_bfd_final_link \
4417 bfd_elf_gc_common_final_link
4418 #define elf_backend_hide_symbol elf_cris_hide_symbol
4419 #define elf_backend_reloc_type_class elf_cris_reloc_type_class
4421 #define elf_backend_want_got_plt 1
4422 #define elf_backend_plt_readonly 1
4423 #define elf_backend_want_plt_sym 0
4424 #define elf_backend_got_header_size 12
4425 #define elf_backend_got_elt_size elf_cris_got_elt_size
4427 /* Later, we my want to optimize RELA entries into REL entries for dynamic
4428 linking and libraries (if it's a win of any significance). Until then,
4429 take the easy route. */
4430 #define elf_backend_may_use_rel_p 0
4431 #define elf_backend_may_use_rela_p 1
4432 #define elf_backend_rela_normal 1
4434 #include "elf32-target.h"
4436 #undef TARGET_LITTLE_SYM
4437 #undef TARGET_LITTLE_NAME
4438 #undef elf_symbol_leading_char
4440 #define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
4441 #define TARGET_LITTLE_NAME "elf32-us-cris"
4442 #define elf_symbol_leading_char '_'
4444 #define elf32_bed elf32_us_cris_bed
4446 #include "elf32-target.h"