1 /* CRIS-specific support for 32-bit ELF.
2 Copyright (C) 2000-2017 Free Software Foundation, Inc.
3 Contributed by Axis Communications AB.
4 Written by Hans-Peter Nilsson, based on elf32-fr30.c
5 PIC and shlib bits based primarily on elf32-m68k.c and elf32-i386.c.
7 This file is part of BFD, the Binary File Descriptor library.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
32 cris_elf_pcrel_reloc (bfd
*, arelent
*, asymbol
*, void *,
33 asection
*, bfd
*, char **);
35 cris_elf_set_mach_from_flags (bfd
*, unsigned long);
37 /* Forward declarations. */
38 static reloc_howto_type cris_elf_howto_table
[] =
40 /* This reloc does nothing. */
41 HOWTO (R_CRIS_NONE
, /* type */
43 3, /* size (0 = byte, 1 = short, 2 = long) */
45 FALSE
, /* pc_relative */
47 complain_overflow_dont
, /* complain_on_overflow */
48 bfd_elf_generic_reloc
, /* special_function */
49 "R_CRIS_NONE", /* name */
50 FALSE
, /* partial_inplace */
53 FALSE
), /* pcrel_offset */
55 /* An 8 bit absolute relocation. */
56 HOWTO (R_CRIS_8
, /* type */
58 0, /* size (0 = byte, 1 = short, 2 = long) */
60 FALSE
, /* pc_relative */
62 complain_overflow_bitfield
, /* complain_on_overflow */
63 bfd_elf_generic_reloc
, /* special_function */
64 "R_CRIS_8", /* name */
65 FALSE
, /* partial_inplace */
66 0x0000, /* src_mask */
67 0x00ff, /* dst_mask */
68 FALSE
), /* pcrel_offset */
70 /* A 16 bit absolute relocation. */
71 HOWTO (R_CRIS_16
, /* type */
73 1, /* size (0 = byte, 1 = short, 2 = long) */
75 FALSE
, /* pc_relative */
77 complain_overflow_bitfield
, /* complain_on_overflow */
78 bfd_elf_generic_reloc
, /* special_function */
79 "R_CRIS_16", /* name */
80 FALSE
, /* partial_inplace */
81 0x00000000, /* src_mask */
82 0x0000ffff, /* dst_mask */
83 FALSE
), /* pcrel_offset */
85 /* A 32 bit absolute relocation. */
86 HOWTO (R_CRIS_32
, /* type */
88 2, /* size (0 = byte, 1 = short, 2 = long) */
90 FALSE
, /* pc_relative */
92 /* We don't want overflow complaints for 64-bit vma builds
93 for e.g. sym+0x40000000 (or actually sym-0xc0000000 in
94 32-bit ELF) where sym=0xc0001234.
95 Don't do this for the PIC relocs, as we don't expect to
96 see them with large offsets. */
97 complain_overflow_dont
, /* complain_on_overflow */
98 bfd_elf_generic_reloc
, /* special_function */
99 "R_CRIS_32", /* name */
100 FALSE
, /* partial_inplace */
101 0x00000000, /* src_mask */
102 0xffffffff, /* dst_mask */
103 FALSE
), /* pcrel_offset */
105 /* An 8 bit PC-relative relocation. */
106 HOWTO (R_CRIS_8_PCREL
, /* type */
108 0, /* size (0 = byte, 1 = short, 2 = long) */
110 TRUE
, /* pc_relative */
112 complain_overflow_bitfield
, /* complain_on_overflow */
113 cris_elf_pcrel_reloc
, /* special_function */
114 "R_CRIS_8_PCREL", /* name */
115 FALSE
, /* partial_inplace */
116 0x0000, /* src_mask */
117 0x00ff, /* dst_mask */
118 TRUE
), /* pcrel_offset */
120 /* A 16 bit PC-relative relocation. */
121 HOWTO (R_CRIS_16_PCREL
, /* type */
123 1, /* size (0 = byte, 1 = short, 2 = long) */
125 TRUE
, /* pc_relative */
127 complain_overflow_bitfield
, /* complain_on_overflow */
128 cris_elf_pcrel_reloc
, /* special_function */
129 "R_CRIS_16_PCREL", /* name */
130 FALSE
, /* partial_inplace */
131 0x00000000, /* src_mask */
132 0x0000ffff, /* dst_mask */
133 TRUE
), /* pcrel_offset */
135 /* A 32 bit PC-relative relocation. */
136 HOWTO (R_CRIS_32_PCREL
, /* type */
138 2, /* size (0 = byte, 1 = short, 2 = long) */
140 TRUE
, /* pc_relative */
142 complain_overflow_bitfield
, /* complain_on_overflow */
143 cris_elf_pcrel_reloc
, /* special_function */
144 "R_CRIS_32_PCREL", /* name */
145 FALSE
, /* partial_inplace */
146 0x00000000, /* src_mask */
147 0xffffffff, /* dst_mask */
148 TRUE
), /* pcrel_offset */
150 /* GNU extension to record C++ vtable hierarchy. */
151 HOWTO (R_CRIS_GNU_VTINHERIT
, /* type */
153 2, /* size (0 = byte, 1 = short, 2 = long) */
155 FALSE
, /* pc_relative */
157 complain_overflow_dont
, /* complain_on_overflow */
158 NULL
, /* special_function */
159 "R_CRIS_GNU_VTINHERIT", /* name */
160 FALSE
, /* partial_inplace */
163 FALSE
), /* pcrel_offset */
165 /* GNU extension to record C++ vtable member usage. */
166 HOWTO (R_CRIS_GNU_VTENTRY
, /* type */
168 2, /* size (0 = byte, 1 = short, 2 = long) */
170 FALSE
, /* pc_relative */
172 complain_overflow_dont
, /* complain_on_overflow */
173 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
174 "R_CRIS_GNU_VTENTRY", /* name */
175 FALSE
, /* partial_inplace */
178 FALSE
), /* pcrel_offset */
180 /* This is used only by the dynamic linker. The symbol should exist
181 both in the object being run and in some shared library. The
182 dynamic linker copies the data addressed by the symbol from the
183 shared library into the object, because the object being
184 run has to have the data at some particular address. */
185 HOWTO (R_CRIS_COPY
, /* type */
187 2, /* size (0 = byte, 1 = short, 2 = long) */
189 FALSE
, /* pc_relative */
191 complain_overflow_bitfield
, /* complain_on_overflow */
192 bfd_elf_generic_reloc
, /* special_function */
193 "R_CRIS_COPY", /* name */
194 FALSE
, /* partial_inplace */
197 FALSE
), /* pcrel_offset */
199 /* Like R_CRIS_32, but used when setting global offset table entries. */
200 HOWTO (R_CRIS_GLOB_DAT
, /* type */
202 2, /* size (0 = byte, 1 = short, 2 = long) */
204 FALSE
, /* pc_relative */
206 complain_overflow_bitfield
, /* complain_on_overflow */
207 bfd_elf_generic_reloc
, /* special_function */
208 "R_CRIS_GLOB_DAT", /* name */
209 FALSE
, /* partial_inplace */
211 0xffffffff, /* dst_mask */
212 FALSE
), /* pcrel_offset */
214 /* Marks a procedure linkage table entry for a symbol. */
215 HOWTO (R_CRIS_JUMP_SLOT
, /* type */
217 2, /* size (0 = byte, 1 = short, 2 = long) */
219 FALSE
, /* pc_relative */
221 complain_overflow_bitfield
, /* complain_on_overflow */
222 bfd_elf_generic_reloc
, /* special_function */
223 "R_CRIS_JUMP_SLOT", /* name */
224 FALSE
, /* partial_inplace */
227 FALSE
), /* pcrel_offset */
229 /* Used only by the dynamic linker. When the object is run, this
230 longword is set to the load address of the object, plus the
232 HOWTO (R_CRIS_RELATIVE
, /* type */
234 2, /* size (0 = byte, 1 = short, 2 = long) */
236 FALSE
, /* pc_relative */
238 complain_overflow_bitfield
, /* complain_on_overflow */
239 bfd_elf_generic_reloc
, /* special_function */
240 "R_CRIS_RELATIVE", /* name */
241 FALSE
, /* partial_inplace */
243 0xffffffff, /* dst_mask */
244 FALSE
), /* pcrel_offset */
246 /* Like R_CRIS_32, but referring to the GOT table entry for the symbol. */
247 HOWTO (R_CRIS_16_GOT
, /* type */
249 1, /* size (0 = byte, 1 = short, 2 = long) */
251 FALSE
, /* pc_relative */
253 complain_overflow_bitfield
, /* complain_on_overflow */
254 bfd_elf_generic_reloc
, /* special_function */
255 "R_CRIS_16_GOT", /* name */
256 FALSE
, /* partial_inplace */
258 0xffff, /* dst_mask */
259 FALSE
), /* pcrel_offset */
261 HOWTO (R_CRIS_32_GOT
, /* 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_32_GOT", /* name */
270 FALSE
, /* partial_inplace */
272 0xffffffff, /* dst_mask */
273 FALSE
), /* pcrel_offset */
275 /* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of
276 the GOT table for the symbol. */
277 HOWTO (R_CRIS_16_GOTPLT
, /* type */
279 1, /* size (0 = byte, 1 = short, 2 = long) */
281 FALSE
, /* pc_relative */
283 complain_overflow_bitfield
, /* complain_on_overflow */
284 bfd_elf_generic_reloc
, /* special_function */
285 "R_CRIS_16_GOTPLT", /* name */
286 FALSE
, /* partial_inplace */
288 0xffff, /* dst_mask */
289 FALSE
), /* pcrel_offset */
291 HOWTO (R_CRIS_32_GOTPLT
, /* type */
293 2, /* size (0 = byte, 1 = short, 2 = long) */
295 FALSE
, /* pc_relative */
297 complain_overflow_bitfield
, /* complain_on_overflow */
298 bfd_elf_generic_reloc
, /* special_function */
299 "R_CRIS_32_GOTPLT", /* name */
300 FALSE
, /* partial_inplace */
302 0xffffffff, /* dst_mask */
303 FALSE
), /* pcrel_offset */
305 /* A 32-bit offset from GOT to (local const) symbol: no GOT entry should
307 HOWTO (R_CRIS_32_GOTREL
, /* type */
309 2, /* size (0 = byte, 1 = short, 2 = long) */
311 FALSE
, /* pc_relative */
313 complain_overflow_bitfield
, /* complain_on_overflow */
314 bfd_elf_generic_reloc
, /* special_function */
315 "R_CRIS_32_GOTREL", /* name */
316 FALSE
, /* partial_inplace */
318 0xffffffff, /* dst_mask */
319 FALSE
), /* pcrel_offset */
321 /* A 32-bit offset from GOT to entry for this symbol in PLT and request
322 to create PLT entry for symbol. */
323 HOWTO (R_CRIS_32_PLT_GOTREL
, /* type */
325 2, /* size (0 = byte, 1 = short, 2 = long) */
327 FALSE
, /* pc_relative */
329 complain_overflow_bitfield
, /* complain_on_overflow */
330 bfd_elf_generic_reloc
, /* special_function */
331 "R_CRIS_32_PLT_GOTREL", /* name */
332 FALSE
, /* partial_inplace */
334 0xffffffff, /* dst_mask */
335 FALSE
), /* pcrel_offset */
337 /* A 32-bit offset from PC (location after the relocation) + addend to
338 entry for this symbol in PLT and request to create PLT entry for
340 HOWTO (R_CRIS_32_PLT_PCREL
, /* type */
342 2, /* size (0 = byte, 1 = short, 2 = long) */
344 TRUE
, /* pc_relative */
346 complain_overflow_bitfield
, /* complain_on_overflow */
347 cris_elf_pcrel_reloc
, /* special_function */
348 "R_CRIS_32_PLT_PCREL", /* name */
349 FALSE
, /* partial_inplace */
351 0xffffffff, /* dst_mask */
352 TRUE
), /* pcrel_offset */
354 /* We don't handle these in any special manner and cross-format
355 linking is not supported; just recognize them enough to pass them
356 around. FIXME: do the same for most PIC relocs and add sanity
357 tests to actually refuse gracefully to handle these and PIC
358 relocs for cross-format linking. */
359 #define TLSHOWTO32(name) \
360 HOWTO (name, 0, 2, 32, FALSE, 0, complain_overflow_bitfield, \
361 bfd_elf_generic_reloc, #name, FALSE, 0, 0xffffffff, FALSE)
362 #define TLSHOWTO16X(name, X) \
363 HOWTO (name, 0, 1, 16, FALSE, 0, complain_overflow_ ## X, \
364 bfd_elf_generic_reloc, #name, FALSE, 0, 0xffff, FALSE)
365 #define TLSHOWTO16(name) TLSHOWTO16X(name, unsigned)
366 #define TLSHOWTO16S(name) TLSHOWTO16X(name, signed)
368 TLSHOWTO32 (R_CRIS_32_GOT_GD
),
369 TLSHOWTO16 (R_CRIS_16_GOT_GD
),
370 TLSHOWTO32 (R_CRIS_32_GD
),
371 TLSHOWTO32 (R_CRIS_DTP
),
372 TLSHOWTO32 (R_CRIS_32_DTPREL
),
373 TLSHOWTO16S (R_CRIS_16_DTPREL
),
374 TLSHOWTO32 (R_CRIS_32_GOT_TPREL
),
375 TLSHOWTO16S (R_CRIS_16_GOT_TPREL
),
376 TLSHOWTO32 (R_CRIS_32_TPREL
),
377 TLSHOWTO16S (R_CRIS_16_TPREL
),
378 TLSHOWTO32 (R_CRIS_DTPMOD
),
379 TLSHOWTO32 (R_CRIS_32_IE
)
382 /* Map BFD reloc types to CRIS ELF reloc types. */
384 struct cris_reloc_map
386 bfd_reloc_code_real_type bfd_reloc_val
;
387 unsigned int cris_reloc_val
;
390 static const struct cris_reloc_map cris_reloc_map
[] =
392 { BFD_RELOC_NONE
, R_CRIS_NONE
},
393 { BFD_RELOC_8
, R_CRIS_8
},
394 { BFD_RELOC_16
, R_CRIS_16
},
395 { BFD_RELOC_32
, R_CRIS_32
},
396 { BFD_RELOC_8_PCREL
, R_CRIS_8_PCREL
},
397 { BFD_RELOC_16_PCREL
, R_CRIS_16_PCREL
},
398 { BFD_RELOC_32_PCREL
, R_CRIS_32_PCREL
},
399 { BFD_RELOC_VTABLE_INHERIT
, R_CRIS_GNU_VTINHERIT
},
400 { BFD_RELOC_VTABLE_ENTRY
, R_CRIS_GNU_VTENTRY
},
401 { BFD_RELOC_CRIS_COPY
, R_CRIS_COPY
},
402 { BFD_RELOC_CRIS_GLOB_DAT
, R_CRIS_GLOB_DAT
},
403 { BFD_RELOC_CRIS_JUMP_SLOT
, R_CRIS_JUMP_SLOT
},
404 { BFD_RELOC_CRIS_RELATIVE
, R_CRIS_RELATIVE
},
405 { BFD_RELOC_CRIS_16_GOT
, R_CRIS_16_GOT
},
406 { BFD_RELOC_CRIS_32_GOT
, R_CRIS_32_GOT
},
407 { BFD_RELOC_CRIS_16_GOTPLT
, R_CRIS_16_GOTPLT
},
408 { BFD_RELOC_CRIS_32_GOTPLT
, R_CRIS_32_GOTPLT
},
409 { BFD_RELOC_CRIS_32_GOTREL
, R_CRIS_32_GOTREL
},
410 { BFD_RELOC_CRIS_32_PLT_GOTREL
, R_CRIS_32_PLT_GOTREL
},
411 { BFD_RELOC_CRIS_32_PLT_PCREL
, R_CRIS_32_PLT_PCREL
},
412 { BFD_RELOC_CRIS_32_GOT_GD
, R_CRIS_32_GOT_GD
},
413 { BFD_RELOC_CRIS_16_GOT_GD
, R_CRIS_16_GOT_GD
},
414 { BFD_RELOC_CRIS_32_GD
, R_CRIS_32_GD
},
415 { BFD_RELOC_CRIS_DTP
, R_CRIS_DTP
},
416 { BFD_RELOC_CRIS_32_DTPREL
, R_CRIS_32_DTPREL
},
417 { BFD_RELOC_CRIS_16_DTPREL
, R_CRIS_16_DTPREL
},
418 { BFD_RELOC_CRIS_32_GOT_TPREL
, R_CRIS_32_GOT_TPREL
},
419 { BFD_RELOC_CRIS_16_GOT_TPREL
, R_CRIS_16_GOT_TPREL
},
420 { BFD_RELOC_CRIS_32_TPREL
, R_CRIS_32_TPREL
},
421 { BFD_RELOC_CRIS_16_TPREL
, R_CRIS_16_TPREL
},
422 { BFD_RELOC_CRIS_DTPMOD
, R_CRIS_DTPMOD
},
423 { BFD_RELOC_CRIS_32_IE
, R_CRIS_32_IE
}
426 static reloc_howto_type
*
427 cris_reloc_type_lookup (bfd
* abfd ATTRIBUTE_UNUSED
,
428 bfd_reloc_code_real_type code
)
432 for (i
= 0; i
< sizeof (cris_reloc_map
) / sizeof (cris_reloc_map
[0]); i
++)
433 if (cris_reloc_map
[i
].bfd_reloc_val
== code
)
434 return & cris_elf_howto_table
[cris_reloc_map
[i
].cris_reloc_val
];
439 static reloc_howto_type
*
440 cris_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
, const char *r_name
)
445 i
< sizeof (cris_elf_howto_table
) / sizeof (cris_elf_howto_table
[0]);
447 if (cris_elf_howto_table
[i
].name
!= NULL
448 && strcasecmp (cris_elf_howto_table
[i
].name
, r_name
) == 0)
449 return &cris_elf_howto_table
[i
];
454 /* Set the howto pointer for an CRIS ELF reloc. */
457 cris_info_to_howto_rela (bfd
* abfd ATTRIBUTE_UNUSED
,
459 Elf_Internal_Rela
* dst
)
461 enum elf_cris_reloc_type r_type
;
463 r_type
= ELF32_R_TYPE (dst
->r_info
);
464 if (r_type
>= R_CRIS_max
)
466 /* xgettext:c-format */
467 _bfd_error_handler (_("%B: invalid CRIS reloc number: %d"), abfd
, r_type
);
470 cache_ptr
->howto
= & cris_elf_howto_table
[r_type
];
473 bfd_reloc_status_type
474 cris_elf_pcrel_reloc (bfd
*abfd ATTRIBUTE_UNUSED
,
475 arelent
*reloc_entry
,
477 void * data ATTRIBUTE_UNUSED
,
478 asection
*input_section
,
480 char **error_message ATTRIBUTE_UNUSED
)
482 /* By default (using only bfd_elf_generic_reloc when linking to
483 non-ELF formats) PC-relative relocs are relative to the beginning
484 of the reloc. CRIS PC-relative relocs are relative to the position
485 *after* the reloc because that's what pre-CRISv32 PC points to
486 after reading an insn field with that reloc. (For CRISv32, PC is
487 actually relative to the start of the insn, but we keep the old
488 definition.) Still, we use as much generic machinery as we can.
490 Only adjust when doing a final link. */
491 if (output_bfd
== (bfd
*) NULL
)
492 reloc_entry
->addend
-= 1 << reloc_entry
->howto
->size
;
495 bfd_elf_generic_reloc (abfd
, reloc_entry
, symbol
, data
,
496 input_section
, output_bfd
, error_message
);
499 /* Support for core dump NOTE sections.
500 The slightly unintuitive code layout is an attempt to keep at least
501 some similarities with other ports, hoping to simplify general
502 changes, while still keeping Linux/CRIS and Linux/CRISv32 code apart. */
505 cris_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
510 if (bfd_get_mach (abfd
) == bfd_mach_cris_v32
)
511 switch (note
->descsz
)
516 case 202: /* Linux/CRISv32 */
518 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
521 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 22);
530 switch (note
->descsz
)
535 case 214: /* Linux/CRIS */
537 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
540 elf_tdata (abfd
)->core
->lwpid
= bfd_get_32 (abfd
, note
->descdata
+ 22);
549 /* Make a ".reg/999" section. */
550 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
551 size
, note
->descpos
+ offset
);
555 cris_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
557 if (bfd_get_mach (abfd
) == bfd_mach_cris_v32
)
558 switch (note
->descsz
)
563 case 124: /* Linux/CRISv32 elf_prpsinfo */
564 elf_tdata (abfd
)->core
->program
565 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
566 elf_tdata (abfd
)->core
->command
567 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
570 switch (note
->descsz
)
575 case 124: /* Linux/CRIS elf_prpsinfo */
576 elf_tdata (abfd
)->core
->program
577 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
578 elf_tdata (abfd
)->core
->command
579 = _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
582 /* Note that for some reason, a spurious space is tacked
583 onto the end of the args in some (at least one anyway)
584 implementations, so strip it off if it exists. */
587 char *command
= elf_tdata (abfd
)->core
->command
;
588 int n
= strlen (command
);
590 if (0 < n
&& command
[n
- 1] == ' ')
591 command
[n
- 1] = '\0';
597 /* The name of the dynamic interpreter. This is put in the .interp
600 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
602 /* The size in bytes of an entry in the procedure linkage table. */
604 #define PLT_ENTRY_SIZE 20
605 #define PLT_ENTRY_SIZE_V32 26
607 /* The first entry in an absolute procedure linkage table looks like this. */
609 static const bfd_byte elf_cris_plt0_entry
[PLT_ENTRY_SIZE
] =
612 0x7e, 0x7e, /* push mof. */
613 0x7f, 0x0d, /* (dip [pc+]) */
614 0, 0, 0, 0, /* Replaced with address of .got + 4. */
615 0x30, 0x7a, /* move [...],mof */
616 0x7f, 0x0d, /* (dip [pc+]) */
617 0, 0, 0, 0, /* Replaced with address of .got + 8. */
618 0x30, 0x09 /* jump [...] */
621 static const bfd_byte elf_cris_plt0_entry_v32
[PLT_ENTRY_SIZE_V32
] =
623 0x84, 0xe2, /* subq 4,$sp */
624 0x6f, 0xfe, /* move.d 0,$acr */
625 0, 0, 0, 0, /* Replaced by address of .got + 4. */
626 0x7e, 0x7a, /* move $mof,[$sp] */
627 0x3f, 0x7a, /* move [$acr],$mof */
628 0x04, 0xf2, /* addq 4,acr */
629 0x6f, 0xfa, /* move.d [$acr],$acr */
630 0xbf, 0x09, /* jump $acr */
631 0xb0, 0x05, /* nop */
632 0, 0 /* Pad out to 26 bytes. */
635 /* Subsequent entries in an absolute procedure linkage table look like
638 static const bfd_byte elf_cris_plt_entry
[PLT_ENTRY_SIZE
] =
640 0x7f, 0x0d, /* (dip [pc+]) */
641 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
642 0x30, 0x09, /* jump [...] */
643 0x3f, 0x7e, /* move [pc+],mof */
644 0, 0, 0, 0, /* Replaced with offset into relocation table. */
645 0x2f, 0xfe, /* add.d [pc+],pc */
647 0xff, 0xff /* Replaced with offset to start of .plt. */
650 static const bfd_byte elf_cris_plt_entry_v32
[PLT_ENTRY_SIZE_V32
] =
652 0x6f, 0xfe, /* move.d 0,$acr */
653 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
654 0x6f, 0xfa, /* move.d [$acr],$acr */
655 0xbf, 0x09, /* jump $acr */
656 0xb0, 0x05, /* nop */
657 0x3f, 0x7e, /* move 0,mof */
658 0, 0, 0, 0, /* Replaced with offset into relocation table. */
659 0xbf, 0x0e, /* ba start_of_plt0_entry */
660 0, 0, 0, 0, /* Replaced with offset to plt0 entry. */
664 /* The first entry in a PIC procedure linkage table looks like this. */
666 static const bfd_byte elf_cris_pic_plt0_entry
[PLT_ENTRY_SIZE
] =
668 0xfc, 0xe1, 0x7e, 0x7e, /* push mof */
669 0x04, 0x01, 0x30, 0x7a, /* move [r0+4],mof */
670 0x08, 0x01, 0x30, 0x09, /* jump [r0+8] */
671 0, 0, 0, 0, 0, 0, 0, 0, /* Pad out to 20 bytes. */
674 static const bfd_byte elf_cris_pic_plt0_entry_v32
[PLT_ENTRY_SIZE_V32
] =
676 0x84, 0xe2, /* subq 4,$sp */
677 0x04, 0x01, /* addoq 4,$r0,$acr */
678 0x7e, 0x7a, /* move $mof,[$sp] */
679 0x3f, 0x7a, /* move [$acr],$mof */
680 0x04, 0xf2, /* addq 4,$acr */
681 0x6f, 0xfa, /* move.d [$acr],$acr */
682 0xbf, 0x09, /* jump $acr */
683 0xb0, 0x05, /* nop */
684 0, 0, /* Pad out to 26 bytes. */
689 /* Subsequent entries in a PIC procedure linkage table look like this. */
691 static const bfd_byte elf_cris_pic_plt_entry
[PLT_ENTRY_SIZE
] =
693 0x6f, 0x0d, /* (bdap [pc+].d,r0) */
694 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
695 0x30, 0x09, /* jump [...] */
696 0x3f, 0x7e, /* move [pc+],mof */
697 0, 0, 0, 0, /* Replaced with offset into relocation table. */
698 0x2f, 0xfe, /* add.d [pc+],pc */
699 0xec, 0xff, /* Replaced with offset to start of .plt. */
703 static const bfd_byte elf_cris_pic_plt_entry_v32
[PLT_ENTRY_SIZE_V32
] =
705 0x6f, 0x0d, /* addo.d 0,$r0,$acr */
706 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
707 0x6f, 0xfa, /* move.d [$acr],$acr */
708 0xbf, 0x09, /* jump $acr */
709 0xb0, 0x05, /* nop */
710 0x3f, 0x7e, /* move relocoffs,$mof */
711 0, 0, 0, 0, /* Replaced with offset into relocation table. */
712 0xbf, 0x0e, /* ba start_of_plt */
713 0, 0, 0, 0, /* Replaced with offset to start of .plt. */
717 /* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
718 (and most other PIC/shlib stuff). Check that we don't drift away
721 The CRIS linker, like the m68k and i386 linkers (and probably the rest
722 too) needs to keep track of the number of relocs that it decides to
723 copy in check_relocs for each symbol. This is so that it can discard
724 PC relative relocs if it doesn't need them when linking with
725 -Bsymbolic. We store the information in a field extending the regular
726 ELF linker hash table. */
728 /* This structure keeps track of the number of PC relative relocs we have
729 copied for a given symbol. */
731 struct elf_cris_pcrel_relocs_copied
734 struct elf_cris_pcrel_relocs_copied
*next
;
736 /* A section in dynobj. */
739 /* Number of relocs copied in this section. */
742 /* Example of reloc being copied, for message. */
743 enum elf_cris_reloc_type r_type
;
746 /* CRIS ELF linker hash entry. */
748 struct elf_cris_link_hash_entry
750 struct elf_link_hash_entry root
;
752 /* Number of PC relative relocs copied for this symbol. */
753 struct elf_cris_pcrel_relocs_copied
*pcrel_relocs_copied
;
755 /* The GOTPLT references are CRIS-specific; the goal is to avoid having
756 both a general GOT and a PLT-specific GOT entry for the same symbol,
757 when it is referenced both as a function and as a function pointer.
759 Number of GOTPLT references for a function. */
760 bfd_signed_vma gotplt_refcount
;
762 /* Actual GOTPLT index for this symbol, if applicable, or zero if not
763 (zero is never used as an index). FIXME: We should be able to fold
764 this with gotplt_refcount in a union, like the got and plt unions in
765 elf_link_hash_entry. */
766 bfd_size_type gotplt_offset
;
768 /* The root.got.refcount is the sum of the regular reference counts
769 (this) and those members below. We have to keep a separate count
770 to track when we've found the first (or last) reference to a
771 regular got entry. The offset is in root.got.offset. */
772 bfd_signed_vma reg_got_refcount
;
774 /* Similar to the above, the number of reloc references to this
775 symbols that need a R_CRIS_32_TPREL slot. The offset is in
776 root.got.offset, because this and .dtp_refcount can't validly
777 happen when there's also a regular GOT entry; that's invalid
778 input for which an error is emitted. */
779 bfd_signed_vma tprel_refcount
;
781 /* Similar to the above, the number of reloc references to this
782 symbols that need a R_CRIS_DTP slot. The offset is in
783 root.got.offset; plus 4 if .tprel_refcount > 0. */
784 bfd_signed_vma dtp_refcount
;
788 elf_cris_discard_excess_dso_dynamics (struct elf_cris_link_hash_entry
*,
791 elf_cris_discard_excess_program_dynamics (struct elf_cris_link_hash_entry
*,
794 /* The local_got_refcounts and local_got_offsets are a multiple of
795 LSNUM in size, namely LGOT_ALLOC_NELTS_FOR(LSNUM) (plus one for the
796 refcount for GOT itself, see code), with the summary / group offset
797 for local symbols located at offset N, reference counts for
798 ordinary (address) relocs at offset N + LSNUM, for R_CRIS_DTP
799 relocs at offset N + 2*LSNUM, and for R_CRIS_32_TPREL relocs at N +
802 #define LGOT_REG_NDX(x) ((x) + symtab_hdr->sh_info)
803 #define LGOT_DTP_NDX(x) ((x) + 2 * symtab_hdr->sh_info)
804 #define LGOT_TPREL_NDX(x) ((x) + 3 * symtab_hdr->sh_info)
805 #define LGOT_ALLOC_NELTS_FOR(x) ((x) * 4)
807 /* CRIS ELF linker hash table. */
809 struct elf_cris_link_hash_table
811 struct elf_link_hash_table root
;
813 /* We can't use the PLT offset and calculate to get the GOTPLT offset,
814 since we try and avoid creating GOTPLT:s when there's already a GOT.
815 Instead, we keep and update the next available index here. */
816 bfd_size_type next_gotplt_entry
;
818 /* The number of R_CRIS_32_DTPREL and R_CRIS_16_DTPREL that have
819 been seen for any input; if != 0, then the constant-offset
820 R_CRIS_DTPMOD is needed for this DSO/executable. This turns
821 negative at relocation, so that we don't need an extra flag for
822 when the reloc is output. */
823 bfd_signed_vma dtpmod_refcount
;
826 /* Traverse a CRIS ELF linker hash table. */
828 #define elf_cris_link_hash_traverse(table, func, info) \
829 (elf_link_hash_traverse \
831 (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
834 /* Get the CRIS ELF linker hash table from a link_info structure. */
836 #define elf_cris_hash_table(p) \
837 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
838 == CRIS_ELF_DATA ? ((struct elf_cris_link_hash_table *) ((p)->hash)) : NULL)
840 /* Get the CRIS ELF linker hash entry from a regular hash entry (the
841 "parent class"). The .root reference is just a simple type
842 check on the argument. */
844 #define elf_cris_hash_entry(p) \
845 ((struct elf_cris_link_hash_entry *) (&(p)->root))
847 /* Create an entry in a CRIS ELF linker hash table. */
849 static struct bfd_hash_entry
*
850 elf_cris_link_hash_newfunc (struct bfd_hash_entry
*entry
,
851 struct bfd_hash_table
*table
,
854 struct elf_cris_link_hash_entry
*ret
=
855 (struct elf_cris_link_hash_entry
*) entry
;
857 /* Allocate the structure if it has not already been allocated by a
859 if (ret
== (struct elf_cris_link_hash_entry
*) NULL
)
860 ret
= ((struct elf_cris_link_hash_entry
*)
861 bfd_hash_allocate (table
,
862 sizeof (struct elf_cris_link_hash_entry
)));
863 if (ret
== (struct elf_cris_link_hash_entry
*) NULL
)
864 return (struct bfd_hash_entry
*) ret
;
866 /* Call the allocation method of the superclass. */
867 ret
= ((struct elf_cris_link_hash_entry
*)
868 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
870 if (ret
!= (struct elf_cris_link_hash_entry
*) NULL
)
872 ret
->pcrel_relocs_copied
= NULL
;
873 ret
->gotplt_refcount
= 0;
874 ret
->gotplt_offset
= 0;
875 ret
->dtp_refcount
= 0;
876 ret
->tprel_refcount
= 0;
877 ret
->reg_got_refcount
= 0;
880 return (struct bfd_hash_entry
*) ret
;
883 /* Create a CRIS ELF linker hash table. */
885 static struct bfd_link_hash_table
*
886 elf_cris_link_hash_table_create (bfd
*abfd
)
888 struct elf_cris_link_hash_table
*ret
;
889 bfd_size_type amt
= sizeof (struct elf_cris_link_hash_table
);
891 ret
= ((struct elf_cris_link_hash_table
*) bfd_zmalloc (amt
));
892 if (ret
== (struct elf_cris_link_hash_table
*) NULL
)
895 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
896 elf_cris_link_hash_newfunc
,
897 sizeof (struct elf_cris_link_hash_entry
),
904 /* Initialize to skip over the first three entries in the gotplt; they
905 are used for run-time symbol evaluation. */
906 ret
->next_gotplt_entry
= 12;
908 return &ret
->root
.root
;
911 /* Perform a single relocation. By default we use the standard BFD
912 routines, with a few tweaks. */
914 static bfd_reloc_status_type
915 cris_final_link_relocate (reloc_howto_type
* howto
,
917 asection
* input_section
,
919 Elf_Internal_Rela
* rel
,
922 bfd_reloc_status_type r
;
923 enum elf_cris_reloc_type r_type
= ELF32_R_TYPE (rel
->r_info
);
925 /* PC-relative relocations are relative to the position *after*
926 the reloc. Note that for R_CRIS_8_PCREL the adjustment is
927 not a single byte, since PC must be 16-bit-aligned. */
930 /* Check that the 16-bit GOT relocs are positive. */
931 case R_CRIS_16_GOTPLT
:
933 if ((bfd_signed_vma
) relocation
< 0)
934 return bfd_reloc_overflow
;
937 case R_CRIS_32_PLT_PCREL
:
938 case R_CRIS_32_PCREL
:
942 case R_CRIS_16_PCREL
:
950 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
951 contents
, rel
->r_offset
,
952 relocation
, rel
->r_addend
);
957 /* The number of errors left before we stop outputting reloc-specific
958 explanatory messages. By coincidence, this works nicely together
959 with the default number of messages you'll get from LD about
960 "relocation truncated to fit" messages before you get an
961 "additional relocation overflows omitted from the output". */
962 static int additional_relocation_error_msg_count
= 10;
964 /* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was
965 copied, for further comments. */
968 cris_elf_relocate_section (bfd
*output_bfd ATTRIBUTE_UNUSED
,
969 struct bfd_link_info
*info
,
971 asection
*input_section
,
973 Elf_Internal_Rela
*relocs
,
974 Elf_Internal_Sym
*local_syms
,
975 asection
**local_sections
)
977 struct elf_cris_link_hash_table
* htab
;
979 Elf_Internal_Shdr
*symtab_hdr
;
980 struct elf_link_hash_entry
**sym_hashes
;
981 bfd_vma
*local_got_offsets
;
985 Elf_Internal_Rela
*rel
;
986 Elf_Internal_Rela
*relend
;
989 htab
= elf_cris_hash_table (info
);
993 dynobj
= htab
->root
.dynobj
;
994 local_got_offsets
= elf_local_got_offsets (input_bfd
);
995 symtab_hdr
= & elf_tdata (input_bfd
)->symtab_hdr
;
996 sym_hashes
= elf_sym_hashes (input_bfd
);
997 relend
= relocs
+ input_section
->reloc_count
;
1006 splt
= htab
->root
.splt
;
1007 sgot
= htab
->root
.sgot
;
1010 for (rel
= relocs
; rel
< relend
; rel
++)
1012 reloc_howto_type
*howto
;
1013 unsigned long r_symndx
;
1014 Elf_Internal_Sym
*sym
;
1016 struct elf_link_hash_entry
*h
;
1018 bfd_reloc_status_type r
;
1019 const char *symname
= NULL
;
1020 enum elf_cris_reloc_type r_type
;
1022 r_type
= ELF32_R_TYPE (rel
->r_info
);
1024 if ( r_type
== R_CRIS_GNU_VTINHERIT
1025 || r_type
== R_CRIS_GNU_VTENTRY
)
1028 r_symndx
= ELF32_R_SYM (rel
->r_info
);
1029 howto
= cris_elf_howto_table
+ r_type
;
1034 if (r_symndx
< symtab_hdr
->sh_info
)
1036 sym
= local_syms
+ r_symndx
;
1037 sec
= local_sections
[r_symndx
];
1038 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
1040 symname
= (bfd_elf_string_from_elf_section
1041 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
));
1042 if (symname
== NULL
)
1043 symname
= bfd_section_name (input_bfd
, sec
);
1047 bfd_boolean warned
, ignored
;
1048 bfd_boolean unresolved_reloc
;
1050 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
1051 r_symndx
, symtab_hdr
, sym_hashes
,
1053 unresolved_reloc
, warned
, ignored
);
1055 symname
= h
->root
.root
.string
;
1057 if (unresolved_reloc
1058 /* Perhaps we should detect the cases that
1059 sec->output_section is expected to be NULL like i386 and
1060 m68k, but apparently (and according to elfxx-ia64.c) all
1061 valid cases are where the symbol is defined in a shared
1062 object which we link dynamically against. This includes
1063 PLT relocs for which we've created a PLT entry and other
1064 relocs for which we're prepared to create dynamic
1067 For now, new situations cause us to just err when
1068 sec->output_offset is NULL but the object with the symbol
1069 is *not* dynamically linked against. Thus this will
1070 automatically remind us so we can see if there are other
1071 valid cases we need to revisit. */
1072 && (sec
->owner
->flags
& DYNAMIC
) != 0)
1075 else if (h
->root
.type
== bfd_link_hash_defined
1076 || h
->root
.type
== bfd_link_hash_defweak
)
1078 /* Here follow the cases where the relocation value must
1079 be zero (or when further handling is simplified when
1080 zero). I can't claim to understand the various
1081 conditions and they weren't described in the files
1082 where I copied them from (elf32-m68k.c and
1083 elf32-i386.c), but let's mention examples of where
1084 they happen. FIXME: Perhaps define and use a
1085 dynamic_symbol_p function like ia64.
1087 - When creating a shared library, we can have an
1088 ordinary relocation for a symbol defined in a shared
1089 library (perhaps the one we create). We then make
1090 the relocation value zero, as the value seen now will
1091 be added into the relocation addend in this shared
1092 library, but must be handled only at dynamic-link
1093 time. FIXME: Not sure this example covers the
1094 h->elf_link_hash_flags test, though it's there in
1096 if (bfd_link_pic (info
)
1097 && ((!SYMBOLIC_BIND (info
, h
) && h
->dynindx
!= -1)
1099 && (input_section
->flags
& SEC_ALLOC
) != 0
1100 && (r_type
== R_CRIS_8
1101 || r_type
== R_CRIS_16
1102 || r_type
== R_CRIS_32
1103 || r_type
== R_CRIS_8_PCREL
1104 || r_type
== R_CRIS_16_PCREL
1105 || r_type
== R_CRIS_32_PCREL
))
1107 else if (!bfd_link_relocatable (info
) && unresolved_reloc
1108 && (_bfd_elf_section_offset (output_bfd
, info
,
1114 /* xgettext:c-format */
1115 (_("%B, section %A: unresolvable relocation %s against symbol `%s'"),
1118 cris_elf_howto_table
[r_type
].name
,
1120 bfd_set_error (bfd_error_bad_value
);
1126 if (sec
!= NULL
&& discarded_section (sec
))
1127 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
1128 rel
, 1, relend
, howto
, 0, contents
);
1130 if (bfd_link_relocatable (info
))
1135 case R_CRIS_16_GOTPLT
:
1136 case R_CRIS_32_GOTPLT
:
1137 /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
1138 but we require a PLT, and the PLT handling will take care of
1139 filling in the PLT-specific GOT entry. For the GOT offset,
1140 calculate it as we do when filling it in for the .got.plt
1141 section. If we don't have a PLT, punt to GOT handling. */
1143 && ((struct elf_cris_link_hash_entry
*) h
)->gotplt_offset
!= 0)
1145 asection
*sgotplt
= htab
->root
.sgotplt
;
1148 BFD_ASSERT (h
->dynindx
!= -1);
1149 BFD_ASSERT (sgotplt
!= NULL
);
1152 = ((struct elf_cris_link_hash_entry
*) h
)->gotplt_offset
;
1154 relocation
= got_offset
;
1158 /* We didn't make a PLT entry for this symbol. Maybe everything is
1159 folded into the GOT. Other than folding, this happens when
1160 statically linking PIC code, or when using -Bsymbolic. Check
1161 that we instead have a GOT entry as done for us by
1162 elf_cris_adjust_dynamic_symbol, and drop through into the
1163 ordinary GOT cases. This must not happen for the
1164 executable, because any reference it does to a function
1165 that is satisfied by a DSO must generate a PLT. We assume
1166 these call-specific relocs don't address non-functions. */
1168 && (h
->got
.offset
== (bfd_vma
) -1
1169 || (!bfd_link_pic (info
)
1172 && h
->root
.type
== bfd_link_hash_undefweak
)))))
1175 ((h
->got
.offset
== (bfd_vma
) -1)
1176 /* xgettext:c-format */
1177 ? _("%B, section %A: No PLT nor GOT for relocation %s"
1178 " against symbol `%s'")
1179 /* xgettext:c-format */
1180 : _("%B, section %A: No PLT for relocation %s"
1181 " against symbol `%s'"),
1184 cris_elf_howto_table
[r_type
].name
,
1185 (symname
!= NULL
&& symname
[0] != '\0'
1186 ? symname
: _("[whose name is lost]")));
1188 /* FIXME: Perhaps blaming input is not the right thing to
1189 do; this is probably an internal error. But it is true
1190 that we didn't like that particular input. */
1191 bfd_set_error (bfd_error_bad_value
);
1196 /* The size of the actual relocation is not used here; we only
1197 fill in the GOT table here. */
1203 /* Note that despite using RELA relocations, the .got contents
1204 is always filled in with the link-relative relocation
1205 value; the addend. */
1209 off
= h
->got
.offset
;
1210 BFD_ASSERT (off
!= (bfd_vma
) -1);
1212 if (!elf_hash_table (info
)->dynamic_sections_created
1213 || (! bfd_link_pic (info
)
1215 || h
->type
== STT_FUNC
1217 || (bfd_link_pic (info
)
1218 && (SYMBOLIC_BIND (info
, h
) || h
->dynindx
== -1)
1221 /* This wasn't checked above for ! bfd_link_pic (info), but
1222 must hold there if we get here; the symbol must
1223 be defined in the regular program or be undefweak
1224 or be a function or otherwise need a PLT. */
1225 BFD_ASSERT (!elf_hash_table (info
)->dynamic_sections_created
1226 || bfd_link_pic (info
)
1228 || h
->type
== STT_FUNC
1230 || h
->root
.type
== bfd_link_hash_undefweak
);
1232 /* This is actually a static link, or it is a
1233 -Bsymbolic link and the symbol is defined locally,
1234 or is undefweak, or the symbol was forced to be
1235 local because of a version file, or we're not
1236 creating a dynamic object. We must initialize this
1237 entry in the global offset table. Since the offset
1238 must always be a multiple of 4, we use the least
1239 significant bit to record whether we have
1240 initialized it already.
1242 If this GOT entry should be runtime-initialized, we
1243 will create a .rela.got relocation entry to
1244 initialize the value. This is done in the
1245 finish_dynamic_symbol routine. */
1250 bfd_put_32 (output_bfd
, relocation
,
1251 sgot
->contents
+ off
);
1258 BFD_ASSERT (local_got_offsets
!= NULL
1259 && local_got_offsets
[r_symndx
] != (bfd_vma
) -1);
1261 off
= local_got_offsets
[r_symndx
];
1263 /* The offset must always be a multiple of 4. We use
1264 the least significant bit to record whether we have
1265 already generated the necessary reloc. */
1270 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1272 if (bfd_link_pic (info
))
1274 Elf_Internal_Rela outrel
;
1277 srelgot
= htab
->root
.srelgot
;
1278 BFD_ASSERT (srelgot
!= NULL
);
1280 outrel
.r_offset
= (sgot
->output_section
->vma
1281 + sgot
->output_offset
1283 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_RELATIVE
);
1284 outrel
.r_addend
= relocation
;
1285 loc
= srelgot
->contents
;
1286 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1287 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1290 local_got_offsets
[r_symndx
] |= 1;
1294 relocation
= sgot
->output_offset
+ off
;
1295 if (rel
->r_addend
!= 0)
1297 /* We can't do anything for a relocation which is against
1298 a symbol *plus offset*. GOT holds relocations for
1299 symbols. Make this an error; the compiler isn't
1300 allowed to pass us these kinds of things. */
1303 /* xgettext:c-format */
1304 (_("%B, section %A: relocation %s with non-zero addend %d"
1305 " against local symbol"),
1308 cris_elf_howto_table
[r_type
].name
,
1312 /* xgettext:c-format */
1313 (_("%B, section %A: relocation %s with non-zero addend %d"
1314 " against symbol `%s'"),
1317 cris_elf_howto_table
[r_type
].name
,
1319 symname
[0] != '\0' ? symname
: _("[whose name is lost]"));
1321 bfd_set_error (bfd_error_bad_value
);
1327 case R_CRIS_32_GOTREL
:
1328 /* This relocation must only be performed against local symbols.
1329 It's also ok when we link a program and the symbol is either
1330 defined in an ordinary (non-DSO) object or is undefined weak. */
1332 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1333 && !(!bfd_link_pic (info
)
1336 && h
->root
.type
== bfd_link_hash_undefweak
))))
1339 /* xgettext:c-format */
1340 (_("%B, section %A: relocation %s is"
1341 " not allowed for global symbol: `%s'"),
1344 cris_elf_howto_table
[r_type
].name
,
1346 bfd_set_error (bfd_error_bad_value
);
1350 /* This can happen if we get a link error with the input ELF
1351 variant mismatching the output variant. Emit an error so
1352 it's noticed if it happens elsewhere. */
1356 /* xgettext:c-format */
1357 (_("%B, section %A: relocation %s with no GOT created"),
1360 cris_elf_howto_table
[r_type
].name
);
1361 bfd_set_error (bfd_error_bad_value
);
1365 /* This relocation is like a PC-relative one, except the
1366 reference point is the location of GOT. Note that
1367 sgot->output_offset is not involved in this calculation. We
1368 always want the start of entire .got section, not the
1369 position after the reserved header. */
1370 relocation
-= sgot
->output_section
->vma
;
1373 case R_CRIS_32_PLT_PCREL
:
1374 /* Relocation is to the entry for this symbol in the
1375 procedure linkage table. */
1377 /* Resolve a PLT_PCREL reloc against a local symbol directly,
1378 without using the procedure linkage table. */
1379 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
1382 if (h
->plt
.offset
== (bfd_vma
) -1
1385 /* We didn't make a PLT entry for this symbol. This
1386 happens when statically linking PIC code, or when
1387 using -Bsymbolic. */
1391 relocation
= (splt
->output_section
->vma
1392 + splt
->output_offset
1396 case R_CRIS_32_PLT_GOTREL
:
1397 /* Like R_CRIS_32_PLT_PCREL, but the reference point is the
1398 start of the .got section. See also comment at
1400 relocation
-= sgot
->output_section
->vma
;
1402 /* Resolve a PLT_GOTREL reloc against a local symbol directly,
1403 without using the procedure linkage table. */
1404 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
1407 if (h
->plt
.offset
== (bfd_vma
) -1
1410 /* We didn't make a PLT entry for this symbol. This
1411 happens when statically linking PIC code, or when
1412 using -Bsymbolic. */
1416 relocation
= (splt
->output_section
->vma
1417 + splt
->output_offset
1419 - sgot
->output_section
->vma
);
1422 case R_CRIS_8_PCREL
:
1423 case R_CRIS_16_PCREL
:
1424 case R_CRIS_32_PCREL
:
1425 /* If the symbol was local, we need no shlib-specific handling. */
1426 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
1427 || h
->dynindx
== -1)
1434 if (bfd_link_pic (info
)
1435 && r_symndx
!= STN_UNDEF
1436 && (input_section
->flags
& SEC_ALLOC
) != 0
1437 && ((r_type
!= R_CRIS_8_PCREL
1438 && r_type
!= R_CRIS_16_PCREL
1439 && r_type
!= R_CRIS_32_PCREL
)
1440 || (!SYMBOLIC_BIND (info
, h
)
1441 || (h
!= NULL
&& !h
->def_regular
))))
1443 Elf_Internal_Rela outrel
;
1445 bfd_boolean skip
, relocate
;
1447 /* When generating a shared object, these relocations
1448 are copied into the output file to be resolved at run
1453 sreloc
= _bfd_elf_get_dynamic_reloc_section
1454 (dynobj
, input_section
, /*rela?*/ TRUE
);
1455 /* The section should have been created in cris_elf_check_relocs,
1456 but that function will not be called for objects which fail in
1457 cris_elf_merge_private_bfd_data. */
1460 bfd_set_error (bfd_error_bad_value
);
1469 _bfd_elf_section_offset (output_bfd
, info
, input_section
,
1471 if (outrel
.r_offset
== (bfd_vma
) -1)
1473 else if (outrel
.r_offset
== (bfd_vma
) -2
1474 /* For now, undefined weak symbols with non-default
1475 visibility (yielding 0), like exception info for
1476 discarded sections, will get a R_CRIS_NONE
1477 relocation rather than no relocation, because we
1478 notice too late that the symbol doesn't need a
1481 && h
->root
.type
== bfd_link_hash_undefweak
1482 && ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
))
1483 skip
= TRUE
, relocate
= TRUE
;
1484 outrel
.r_offset
+= (input_section
->output_section
->vma
1485 + input_section
->output_offset
);
1488 memset (&outrel
, 0, sizeof outrel
);
1489 /* h->dynindx may be -1 if the symbol was marked to
1492 && ((!SYMBOLIC_BIND (info
, h
) && h
->dynindx
!= -1)
1493 || !h
->def_regular
))
1495 BFD_ASSERT (h
->dynindx
!= -1);
1496 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
1497 outrel
.r_addend
= relocation
+ rel
->r_addend
;
1501 outrel
.r_addend
= relocation
+ rel
->r_addend
;
1503 if (r_type
== R_CRIS_32
)
1506 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_RELATIVE
);
1512 if (bfd_is_abs_section (sec
))
1514 else if (sec
== NULL
|| sec
->owner
== NULL
)
1516 bfd_set_error (bfd_error_bad_value
);
1523 /* We are turning this relocation into one
1524 against a section symbol. It would be
1525 proper to subtract the symbol's value,
1526 osec->vma, from the emitted reloc addend,
1527 but ld.so expects buggy relocs. */
1528 osec
= sec
->output_section
;
1529 indx
= elf_section_data (osec
)->dynindx
;
1532 osec
= htab
->root
.text_index_section
;
1533 indx
= elf_section_data (osec
)->dynindx
;
1535 BFD_ASSERT (indx
!= 0);
1538 outrel
.r_info
= ELF32_R_INFO (indx
, r_type
);
1542 loc
= sreloc
->contents
;
1543 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1544 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1546 /* This reloc will be computed at runtime, so there's no
1547 need to do anything now, except for R_CRIS_32 relocations
1548 that have been turned into R_CRIS_RELATIVE. */
1555 case R_CRIS_16_DTPREL
:
1556 case R_CRIS_32_DTPREL
:
1557 /* This relocation must only be performed against local
1558 symbols, or to sections that are not loadable. It's also
1559 ok when we link a program and the symbol is defined in an
1560 ordinary (non-DSO) object (if it's undefined there, we've
1561 already seen an error). */
1563 && (input_section
->flags
& SEC_ALLOC
) != 0
1564 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1565 && (bfd_link_pic (info
)
1567 && h
->root
.type
!= bfd_link_hash_undefined
)))
1570 ((h
->root
.type
== bfd_link_hash_undefined
)
1571 /* We shouldn't get here for GCC-emitted code. */
1572 /* xgettext:c-format */
1573 ? _("%B, section %A: relocation %s has an undefined"
1574 " reference to `%s', perhaps a declaration mixup?")
1575 /* xgettext:c-format */
1576 : _("%B, section %A: relocation %s is"
1577 " not allowed for `%s', a global symbol with default"
1578 " visibility, perhaps a declaration mixup?"),
1581 cris_elf_howto_table
[r_type
].name
,
1582 symname
!= NULL
&& symname
[0] != '\0'
1583 ? symname
: _("[whose name is lost]"));
1584 bfd_set_error (bfd_error_bad_value
);
1588 BFD_ASSERT ((input_section
->flags
& SEC_ALLOC
) == 0
1589 || htab
->dtpmod_refcount
!= 0);
1591 /* Fill in a R_CRIS_DTPMOD reloc at offset 3 if we haven't
1592 already done so. Note that we do this in .got.plt, not
1593 in .got, as .got.plt contains the first part, still the
1594 reloc is against .got, because the linker script directs
1595 (is required to direct) them both into .got. */
1596 if (htab
->dtpmod_refcount
> 0
1597 && (input_section
->flags
& SEC_ALLOC
) != 0)
1599 asection
*sgotplt
= htab
->root
.sgotplt
;
1600 BFD_ASSERT (sgotplt
!= NULL
);
1602 if (bfd_link_pic (info
))
1604 Elf_Internal_Rela outrel
;
1607 srelgot
= htab
->root
.srelgot
;
1608 BFD_ASSERT (srelgot
!= NULL
);
1609 loc
= srelgot
->contents
;
1610 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1612 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 12);
1613 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 16);
1614 outrel
.r_offset
= (sgotplt
->output_section
->vma
1615 + sgotplt
->output_offset
1617 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_DTPMOD
);
1618 outrel
.r_addend
= 0;
1619 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1623 /* For an executable, the GOT entry contents is known. */
1624 bfd_put_32 (output_bfd
, (bfd_vma
) 1, sgotplt
->contents
+ 12);
1625 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 16);
1628 /* Reverse the sign to mark that we've emitted the
1629 required GOT entry. */
1630 htab
->dtpmod_refcount
= - htab
->dtpmod_refcount
;
1633 /* The relocation is the offset from the start of the module
1634 TLS block to the (local) symbol. */
1635 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1636 ? 0 : elf_hash_table (info
)->tls_sec
->vma
;
1640 if (bfd_link_pic (info
))
1642 bfd_set_error (bfd_error_invalid_operation
);
1644 /* We've already informed in cris_elf_check_relocs that
1645 this is an error. */
1650 case R_CRIS_16_GOT_GD
:
1651 case R_CRIS_32_GOT_GD
:
1652 if (rel
->r_addend
!= 0)
1654 /* We can't do anything for a relocation which is against a
1655 symbol *plus offset*. The GOT holds relocations for
1656 symbols. Make this an error; the compiler isn't allowed
1657 to pass us these kinds of things. */
1659 /* xgettext:c-format */
1660 (_("%B, section %A: relocation %s with non-zero addend %d"
1661 " against symbol `%s'"),
1664 cris_elf_howto_table
[r_type
].name
,
1666 symname
[0] != '\0' ? symname
: _("[whose name is lost]"));
1668 bfd_set_error (bfd_error_bad_value
);
1672 if (!bfd_link_pic (info
)
1673 && (h
== NULL
|| h
->def_regular
|| ELF_COMMON_DEF_P (h
)))
1675 /* Known contents of the GOT. */
1678 /* The symbol is defined in the program, so just write
1679 (1, known_tpoffset) into the GOT. */
1680 relocation
-= elf_hash_table (info
)->tls_sec
->vma
;
1684 off
= elf_cris_hash_entry (h
)->tprel_refcount
> 0
1685 ? h
->got
.offset
+ 4 : h
->got
.offset
;
1689 off
= local_got_offsets
[r_symndx
];
1690 if (local_got_offsets
[LGOT_TPREL_NDX (r_symndx
)])
1694 /* We use bit 1 of the offset as a flag for GOT entry with
1695 the R_CRIS_DTP reloc, setting it when we've emitted the
1696 GOT entry and reloc. Bit 0 is used for R_CRIS_32_TPREL
1705 local_got_offsets
[r_symndx
] |= 2;
1707 bfd_put_32 (output_bfd
, 1, sgot
->contents
+ off
);
1708 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
+ 4);
1713 relocation
= sgot
->output_offset
+ off
1714 + (r_type
== R_CRIS_32_GD
? sgot
->output_section
->vma
: 0);
1718 /* Not all parts of the GOT entry are known; emit a real
1723 off
= elf_cris_hash_entry (h
)->tprel_refcount
> 0
1724 ? h
->got
.offset
+ 4 : h
->got
.offset
;
1727 off
= local_got_offsets
[r_symndx
];
1728 if (local_got_offsets
[LGOT_TPREL_NDX (r_symndx
)])
1732 /* See above re bit 1 and bit 0 usage. */
1735 Elf_Internal_Rela outrel
;
1743 local_got_offsets
[r_symndx
] |= 2;
1745 /* Clear the target contents of the GOT (just as a
1746 gesture; it's already cleared on allocation): this
1747 relocation is not like the other dynrelocs. */
1748 bfd_put_32 (output_bfd
, 0, sgot
->contents
+ off
);
1749 bfd_put_32 (output_bfd
, 0, sgot
->contents
+ off
+ 4);
1751 srelgot
= htab
->root
.srelgot
;
1752 BFD_ASSERT (srelgot
!= NULL
);
1754 if (h
!= NULL
&& h
->dynindx
!= -1)
1756 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_DTP
);
1761 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_DTP
);
1763 /* NULL if we had an error. */
1764 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1765 ? 0 : elf_hash_table (info
)->tls_sec
->vma
;
1768 outrel
.r_offset
= (sgot
->output_section
->vma
1769 + sgot
->output_offset
1771 outrel
.r_addend
= relocation
;
1772 loc
= srelgot
->contents
;
1773 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1775 /* NULL if we had an error. */
1776 if (srelgot
->contents
!= NULL
)
1777 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1782 relocation
= sgot
->output_offset
+ off
1783 + (r_type
== R_CRIS_32_GD
? sgot
->output_section
->vma
: 0);
1786 /* The GOT-relative offset to the GOT entry is the
1787 relocation, or for R_CRIS_32_GD, the actual address of
1792 if (bfd_link_pic (info
))
1794 bfd_set_error (bfd_error_invalid_operation
);
1796 /* We've already informed in cris_elf_check_relocs that
1797 this is an error. */
1802 case R_CRIS_32_GOT_TPREL
:
1803 case R_CRIS_16_GOT_TPREL
:
1804 if (rel
->r_addend
!= 0)
1806 /* We can't do anything for a relocation which is
1807 against a symbol *plus offset*. GOT holds
1808 relocations for symbols. Make this an error; the
1809 compiler isn't allowed to pass us these kinds of
1812 /* xgettext:c-format */
1813 (_("%B, section %A: relocation %s with non-zero addend %d"
1814 " against symbol `%s'"),
1817 cris_elf_howto_table
[r_type
].name
,
1819 symname
[0] != '\0' ? symname
: _("[whose name is lost]"));
1820 bfd_set_error (bfd_error_bad_value
);
1824 if (!bfd_link_pic (info
)
1825 && (h
== NULL
|| h
->def_regular
|| ELF_COMMON_DEF_P (h
)))
1827 /* Known contents of the GOT. */
1830 /* The symbol is defined in the program, so just write
1831 the -prog_tls_size+known_tpoffset into the GOT. */
1832 relocation
-= elf_hash_table (info
)->tls_sec
->vma
;
1833 relocation
-= elf_hash_table (info
)->tls_size
;
1836 off
= h
->got
.offset
;
1838 off
= local_got_offsets
[r_symndx
];
1840 /* Bit 0 is used to mark whether we've emitted the required
1841 entry (and if needed R_CRIS_32_TPREL reloc). Bit 1
1842 is used similarly for R_CRIS_DTP, see above. */
1850 local_got_offsets
[r_symndx
] |= 1;
1852 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1857 relocation
= sgot
->output_offset
+ off
1858 + (r_type
== R_CRIS_32_IE
? sgot
->output_section
->vma
: 0);
1862 /* Emit a real relocation. */
1866 off
= h
->got
.offset
;
1868 off
= local_got_offsets
[r_symndx
];
1870 /* See above re usage of bit 0 and 1. */
1873 Elf_Internal_Rela outrel
;
1881 local_got_offsets
[r_symndx
] |= 1;
1883 srelgot
= htab
->root
.srelgot
;
1884 BFD_ASSERT (srelgot
!= NULL
);
1886 if (h
!= NULL
&& h
->dynindx
!= -1)
1888 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_32_TPREL
);
1893 outrel
.r_info
= ELF32_R_INFO (0, R_CRIS_32_TPREL
);
1895 /* NULL if we had an error. */
1896 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1897 ? 0 : elf_hash_table (info
)->tls_sec
->vma
;
1900 /* Just "define" the initial contents in some
1901 semi-logical way. */
1902 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
1904 outrel
.r_offset
= (sgot
->output_section
->vma
1905 + sgot
->output_offset
1907 outrel
.r_addend
= relocation
;
1908 loc
= srelgot
->contents
;
1909 loc
+= srelgot
->reloc_count
++ * sizeof (Elf32_External_Rela
);
1910 /* NULL if we had an error. */
1911 if (srelgot
->contents
!= NULL
)
1912 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
1917 relocation
= sgot
->output_offset
+ off
1918 + (r_type
== R_CRIS_32_IE
? sgot
->output_section
->vma
: 0);
1921 /* The GOT-relative offset to the GOT entry is the relocation,
1922 or for R_CRIS_32_GD, the actual address of the GOT entry. */
1925 case R_CRIS_16_TPREL
:
1926 case R_CRIS_32_TPREL
:
1927 /* This relocation must only be performed against symbols
1928 defined in an ordinary (non-DSO) object. */
1929 if (bfd_link_pic (info
))
1931 bfd_set_error (bfd_error_invalid_operation
);
1933 /* We've already informed in cris_elf_check_relocs that
1934 this is an error. */
1939 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
1940 && !(h
->def_regular
|| ELF_COMMON_DEF_P (h
))
1941 /* If it's undefined, then an error message has already
1943 && h
->root
.type
!= bfd_link_hash_undefined
)
1946 /* xgettext:c-format */
1947 (_("%B, section %A: relocation %s is"
1948 " not allowed for symbol: `%s'"
1949 " which is defined outside the program,"
1950 " perhaps a declaration mixup?"),
1953 cris_elf_howto_table
[r_type
].name
,
1955 bfd_set_error (bfd_error_bad_value
);
1959 /* NULL if we had an error. */
1960 relocation
-= elf_hash_table (info
)->tls_sec
== NULL
1962 : (elf_hash_table (info
)->tls_sec
->vma
1963 + elf_hash_table (info
)->tls_size
);
1965 /* The TLS-relative offset is the relocation. */
1973 r
= cris_final_link_relocate (howto
, input_bfd
, input_section
,
1974 contents
, rel
, relocation
);
1976 if (r
!= bfd_reloc_ok
)
1978 const char * msg
= (const char *) NULL
;
1982 case bfd_reloc_overflow
:
1983 (*info
->callbacks
->reloc_overflow
)
1984 (info
, (h
? &h
->root
: NULL
), symname
, howto
->name
,
1985 (bfd_vma
) 0, input_bfd
, input_section
, rel
->r_offset
);
1986 if (additional_relocation_error_msg_count
> 0)
1988 additional_relocation_error_msg_count
--;
1991 case R_CRIS_16_GOTPLT
:
1994 /* Not just TLS is involved here, so we make
1995 generation and message depend on -fPIC/-fpic
1997 case R_CRIS_16_GOT_TPREL
:
1998 case R_CRIS_16_GOT_GD
:
2000 (_("(too many global variables for -fpic:"
2001 " recompile with -fPIC)"));
2004 case R_CRIS_16_TPREL
:
2005 case R_CRIS_16_DTPREL
:
2007 (_("(thread-local data too big for -fpic or"
2008 " -msmall-tls: recompile with -fPIC or"
2009 " -mno-small-tls)"));
2012 /* No known cause for overflow for other relocs. */
2019 case bfd_reloc_undefined
:
2020 (*info
->callbacks
->undefined_symbol
)
2021 (info
, symname
, input_bfd
, input_section
, rel
->r_offset
, TRUE
);
2024 case bfd_reloc_outofrange
:
2025 msg
= _("internal error: out of range error");
2028 case bfd_reloc_notsupported
:
2029 msg
= _("internal error: unsupported relocation error");
2032 case bfd_reloc_dangerous
:
2033 msg
= _("internal error: dangerous relocation");
2037 msg
= _("internal error: unknown error");
2042 (*info
->callbacks
->warning
) (info
, msg
, symname
, input_bfd
,
2043 input_section
, rel
->r_offset
);
2050 /* Finish up dynamic symbol handling. We set the contents of various
2051 dynamic sections here. */
2054 elf_cris_finish_dynamic_symbol (bfd
*output_bfd
,
2055 struct bfd_link_info
*info
,
2056 struct elf_link_hash_entry
*h
,
2057 Elf_Internal_Sym
*sym
)
2059 struct elf_cris_link_hash_table
* htab
;
2061 /* Where in the plt entry to put values. */
2062 int plt_off1
= 2, plt_off2
= 10, plt_off3
= 16;
2064 /* What offset to add to the distance to the first PLT entry for the
2065 value at plt_off3. */
2066 int plt_off3_value_bias
= 4;
2068 /* Where in the PLT entry the call-dynlink-stub is (happens to be same
2069 for PIC and non-PIC for v32 and pre-v32). */
2070 int plt_stub_offset
= 8;
2071 int plt_entry_size
= PLT_ENTRY_SIZE
;
2072 const bfd_byte
*plt_entry
= elf_cris_plt_entry
;
2073 const bfd_byte
*plt_pic_entry
= elf_cris_pic_plt_entry
;
2075 htab
= elf_cris_hash_table (info
);
2079 /* Adjust the various PLT entry offsets. */
2080 if (bfd_get_mach (output_bfd
) == bfd_mach_cris_v32
)
2084 plt_off3_value_bias
= -2;
2085 plt_stub_offset
= 12;
2086 plt_entry_size
= PLT_ENTRY_SIZE_V32
;
2087 plt_entry
= elf_cris_plt_entry_v32
;
2088 plt_pic_entry
= elf_cris_pic_plt_entry_v32
;
2091 if (h
->plt
.offset
!= (bfd_vma
) -1)
2098 bfd_vma gotplt_offset
2099 = elf_cris_hash_entry (h
)->gotplt_offset
;
2100 Elf_Internal_Rela rela
;
2102 bfd_boolean has_gotplt
= gotplt_offset
!= 0;
2104 /* Get the index in the .rela.plt relocations for the .got.plt
2105 entry that corresponds to this symbol.
2106 We have to count backwards here, and the result is only valid
2107 as an index into .rela.plt. We also have to undo the effect
2108 of the R_CRIS_DTPMOD entry at .got index 3 (offset 12 into
2109 .got.plt) for which gotplt_offset is adjusted, because while
2110 that entry goes into .got.plt, its relocation goes into
2111 .rela.got, not .rela.plt. (It's not PLT-specific; not to be
2112 processed as part of the runtime lazy .rela.plt relocation).
2113 FIXME: There be literal constants here... */
2114 bfd_vma rela_plt_index
2115 = (htab
->dtpmod_refcount
!= 0
2116 ? gotplt_offset
/4 - 2 - 3 : gotplt_offset
/4 - 3);
2118 /* Get the offset into the .got table of the entry that corresponds
2119 to this function. Note that we embed knowledge that "incoming"
2120 .got goes after .got.plt in the output without padding (pointer
2121 aligned). However, that knowledge is present in several other
2126 : h
->got
.offset
+ htab
->next_gotplt_entry
);
2128 /* This symbol has an entry in the procedure linkage table. Set it
2131 BFD_ASSERT (h
->dynindx
!= -1);
2133 splt
= htab
->root
.splt
;
2134 sgotplt
= htab
->root
.sgotplt
;
2135 srela
= htab
->root
.srelplt
;
2136 BFD_ASSERT (splt
!= NULL
&& sgotplt
!= NULL
2137 && (! has_gotplt
|| srela
!= NULL
));
2139 got_base
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
;
2141 /* Fill in the entry in the procedure linkage table. */
2142 if (! bfd_link_pic (info
))
2144 memcpy (splt
->contents
+ h
->plt
.offset
, plt_entry
,
2147 /* We need to enter the absolute address of the GOT entry here. */
2148 bfd_put_32 (output_bfd
, got_base
+ got_offset
,
2149 splt
->contents
+ h
->plt
.offset
+ plt_off1
);
2153 memcpy (splt
->contents
+ h
->plt
.offset
, plt_pic_entry
,
2155 bfd_put_32 (output_bfd
, got_offset
,
2156 splt
->contents
+ h
->plt
.offset
+ plt_off1
);
2159 /* Fill in the plt entry and make a relocation, if this is a "real"
2163 /* Fill in the offset to the reloc table. */
2164 bfd_put_32 (output_bfd
,
2165 rela_plt_index
* sizeof (Elf32_External_Rela
),
2166 splt
->contents
+ h
->plt
.offset
+ plt_off2
);
2168 /* Fill in the offset to the first PLT entry, where to "jump". */
2169 bfd_put_32 (output_bfd
,
2170 - (h
->plt
.offset
+ plt_off3
+ plt_off3_value_bias
),
2171 splt
->contents
+ h
->plt
.offset
+ plt_off3
);
2173 /* Fill in the entry in the global offset table with the address of
2174 the relocating stub. */
2175 bfd_put_32 (output_bfd
,
2176 (splt
->output_section
->vma
2177 + splt
->output_offset
2180 sgotplt
->contents
+ got_offset
);
2182 /* Fill in the entry in the .rela.plt section. */
2183 rela
.r_offset
= (sgotplt
->output_section
->vma
2184 + sgotplt
->output_offset
2186 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_JUMP_SLOT
);
2188 loc
= srela
->contents
+ rela_plt_index
* sizeof (Elf32_External_Rela
);
2189 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2192 if (!h
->def_regular
)
2194 /* Mark the symbol as undefined, rather than as defined in
2195 the .plt section. Leave the value alone. */
2196 sym
->st_shndx
= SHN_UNDEF
;
2198 /* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't
2199 know whether resetting the value is significant; if it really
2200 is, rather than a quirk or bug in the sparc port, then I
2201 believe we'd see this elsewhere. */
2202 /* If the symbol is weak, we do need to clear the value.
2203 Otherwise, the PLT entry would provide a definition for
2204 the symbol even if the symbol wasn't defined anywhere,
2205 and so the symbol would never be NULL. */
2206 if (!h
->ref_regular_nonweak
)
2211 /* For an ordinary program, we emit .got relocs only for symbols that
2212 are in the dynamic-symbols table and are either defined by the
2213 program or are undefined weak symbols, or are function symbols
2214 where we do not output a PLT: the PLT reloc was output above and all
2215 references to the function symbol are redirected to the PLT. */
2216 if (h
->got
.offset
!= (bfd_vma
) -1
2217 && (elf_cris_hash_entry (h
)->reg_got_refcount
> 0)
2218 && (bfd_link_pic (info
)
2219 || (h
->dynindx
!= -1
2220 && h
->plt
.offset
== (bfd_vma
) -1
2222 && h
->root
.type
!= bfd_link_hash_undefweak
)))
2226 Elf_Internal_Rela rela
;
2230 /* This symbol has an entry in the global offset table. Set it up. */
2232 sgot
= htab
->root
.sgot
;
2233 srela
= htab
->root
.srelgot
;
2234 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
2236 rela
.r_offset
= (sgot
->output_section
->vma
2237 + sgot
->output_offset
2238 + (h
->got
.offset
&~ (bfd_vma
) 1));
2240 /* If this is a static link, or it is a -Bsymbolic link and the
2241 symbol is defined locally or was forced to be local because
2242 of a version file, we just want to emit a RELATIVE reloc.
2243 The entry in the global offset table will already have been
2244 initialized in the relocate_section function. */
2245 where
= sgot
->contents
+ (h
->got
.offset
&~ (bfd_vma
) 1);
2246 if (! elf_hash_table (info
)->dynamic_sections_created
2247 || (bfd_link_pic (info
)
2248 && (SYMBOLIC_BIND (info
, h
) || h
->dynindx
== -1)
2251 rela
.r_info
= ELF32_R_INFO (0, R_CRIS_RELATIVE
);
2252 rela
.r_addend
= bfd_get_signed_32 (output_bfd
, where
);
2256 bfd_put_32 (output_bfd
, (bfd_vma
) 0, where
);
2257 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_GLOB_DAT
);
2261 loc
= srela
->contents
;
2262 loc
+= srela
->reloc_count
++ * sizeof (Elf32_External_Rela
);
2263 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2269 Elf_Internal_Rela rela
;
2272 /* This symbol needs a copy reloc. Set it up. */
2274 BFD_ASSERT (h
->dynindx
!= -1
2275 && (h
->root
.type
== bfd_link_hash_defined
2276 || h
->root
.type
== bfd_link_hash_defweak
));
2278 if ((h
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
2279 s
= htab
->root
.sreldynrelro
;
2281 s
= htab
->root
.srelbss
;
2283 rela
.r_offset
= (h
->root
.u
.def
.value
2284 + h
->root
.u
.def
.section
->output_section
->vma
2285 + h
->root
.u
.def
.section
->output_offset
);
2286 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_CRIS_COPY
);
2288 loc
= s
->contents
+ s
->reloc_count
++ * sizeof (Elf32_External_Rela
);
2289 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
2292 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
2293 if (h
== elf_hash_table (info
)->hdynamic
2294 || h
== elf_hash_table (info
)->hgot
)
2295 sym
->st_shndx
= SHN_ABS
;
2300 /* Finish up the dynamic sections. Do *not* emit relocs here, as their
2301 offsets were changed, as part of -z combreloc handling, from those we
2305 elf_cris_finish_dynamic_sections (bfd
*output_bfd
,
2306 struct bfd_link_info
*info
)
2312 dynobj
= elf_hash_table (info
)->dynobj
;
2314 sgot
= elf_hash_table (info
)->sgotplt
;
2315 BFD_ASSERT (sgot
!= NULL
);
2316 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
2318 if (elf_hash_table (info
)->dynamic_sections_created
)
2321 Elf32_External_Dyn
*dyncon
, *dynconend
;
2323 splt
= elf_hash_table (info
)->splt
;
2324 BFD_ASSERT (splt
!= NULL
&& sdyn
!= NULL
);
2326 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
2327 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
2328 for (; dyncon
< dynconend
; dyncon
++)
2330 Elf_Internal_Dyn dyn
;
2333 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
2341 dyn
.d_un
.d_ptr
= sgot
->output_section
->vma
+ sgot
->output_offset
;
2342 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2346 /* Yes, we *can* have a .plt and no .plt.rela, for instance
2347 if all symbols are found in the .got (not .got.plt). */
2348 s
= elf_hash_table (info
)->srelplt
;
2349 dyn
.d_un
.d_ptr
= s
!= NULL
? (s
->output_section
->vma
2350 + s
->output_offset
) : 0;
2351 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2355 s
= elf_hash_table (info
)->srelplt
;
2359 dyn
.d_un
.d_val
= s
->size
;
2360 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
2365 /* Fill in the first entry in the procedure linkage table. */
2368 if (bfd_get_mach (output_bfd
) == bfd_mach_cris_v32
)
2370 if (bfd_link_pic (info
))
2371 memcpy (splt
->contents
, elf_cris_pic_plt0_entry_v32
,
2372 PLT_ENTRY_SIZE_V32
);
2375 memcpy (splt
->contents
, elf_cris_plt0_entry_v32
,
2376 PLT_ENTRY_SIZE_V32
);
2377 bfd_put_32 (output_bfd
,
2378 sgot
->output_section
->vma
2379 + sgot
->output_offset
+ 4,
2380 splt
->contents
+ 4);
2382 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
2383 = PLT_ENTRY_SIZE_V32
;
2388 if (bfd_link_pic (info
))
2389 memcpy (splt
->contents
, elf_cris_pic_plt0_entry
,
2393 memcpy (splt
->contents
, elf_cris_plt0_entry
,
2395 bfd_put_32 (output_bfd
,
2396 sgot
->output_section
->vma
2397 + sgot
->output_offset
+ 4,
2398 splt
->contents
+ 6);
2399 bfd_put_32 (output_bfd
,
2400 sgot
->output_section
->vma
2401 + sgot
->output_offset
+ 8,
2402 splt
->contents
+ 14);
2404 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
2411 /* Fill in the first three entries in the global offset table. */
2415 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
2417 bfd_put_32 (output_bfd
,
2418 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
2420 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
2421 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
2424 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
2429 /* Return the section that should be marked against GC for a given
2433 cris_elf_gc_mark_hook (asection
*sec
,
2434 struct bfd_link_info
*info
,
2435 Elf_Internal_Rela
*rel
,
2436 struct elf_link_hash_entry
*h
,
2437 Elf_Internal_Sym
*sym
)
2439 enum elf_cris_reloc_type r_type
= ELF32_R_TYPE (rel
->r_info
);
2443 case R_CRIS_GNU_VTINHERIT
:
2444 case R_CRIS_GNU_VTENTRY
:
2451 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
2454 /* Update the got entry reference counts for the section being removed. */
2457 cris_elf_gc_sweep_hook (bfd
*abfd
,
2458 struct bfd_link_info
*info
,
2460 const Elf_Internal_Rela
*relocs
)
2462 struct elf_cris_link_hash_table
* htab
;
2463 Elf_Internal_Shdr
*symtab_hdr
;
2464 struct elf_link_hash_entry
**sym_hashes
;
2465 bfd_signed_vma
*local_got_refcounts
;
2466 const Elf_Internal_Rela
*rel
, *relend
;
2471 if (bfd_link_relocatable (info
))
2474 dynobj
= elf_hash_table (info
)->dynobj
;
2478 htab
= elf_cris_hash_table (info
);
2482 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2483 sym_hashes
= elf_sym_hashes (abfd
);
2484 local_got_refcounts
= elf_local_got_refcounts (abfd
);
2486 sgot
= htab
->root
.sgot
;
2487 srelgot
= htab
->root
.srelgot
;
2489 relend
= relocs
+ sec
->reloc_count
;
2490 for (rel
= relocs
; rel
< relend
; rel
++)
2492 unsigned long r_symndx
;
2493 struct elf_link_hash_entry
*h
= NULL
;
2494 bfd_signed_vma got_element_size
= 4;
2495 bfd_signed_vma
*specific_refcount
= NULL
;
2496 enum elf_cris_reloc_type r_type
;
2498 r_symndx
= ELF32_R_SYM (rel
->r_info
);
2499 if (r_symndx
>= symtab_hdr
->sh_info
)
2501 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
2502 while (h
->root
.type
== bfd_link_hash_indirect
2503 || h
->root
.type
== bfd_link_hash_warning
)
2504 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2507 r_type
= ELF32_R_TYPE (rel
->r_info
);
2512 case R_CRIS_16_GOTPLT
:
2513 case R_CRIS_32_GOTPLT
:
2514 specific_refcount
= h
!= NULL
2515 ? &((struct elf_cris_link_hash_entry
*) h
)->reg_got_refcount
2516 : &local_got_refcounts
[LGOT_REG_NDX (r_symndx
)];
2520 case R_CRIS_32_GOT_GD
:
2521 case R_CRIS_16_GOT_GD
:
2522 got_element_size
= 8;
2523 specific_refcount
= h
!= NULL
2524 ? &((struct elf_cris_link_hash_entry
*) h
)->dtp_refcount
2525 : &local_got_refcounts
[LGOT_DTP_NDX (r_symndx
)];
2529 case R_CRIS_16_GOT_TPREL
:
2530 case R_CRIS_32_GOT_TPREL
:
2531 specific_refcount
= h
!= NULL
2532 ? &((struct elf_cris_link_hash_entry
*) h
)->tprel_refcount
2533 : &local_got_refcounts
[LGOT_TPREL_NDX (r_symndx
)];
2544 case R_CRIS_16_GOT_TPREL
:
2545 case R_CRIS_32_GOT_TPREL
:
2546 case R_CRIS_32_GOT_GD
:
2547 case R_CRIS_16_GOT_GD
:
2552 /* If the counters are 0 when we got here, we've
2553 miscounted somehow somewhere, an internal error. */
2554 BFD_ASSERT (h
->got
.refcount
> 0);
2557 BFD_ASSERT (*specific_refcount
> 0);
2558 --*specific_refcount
;
2559 if (*specific_refcount
== 0)
2561 /* We don't need the .got entry any more. */
2562 sgot
->size
-= got_element_size
;
2563 srelgot
->size
-= sizeof (Elf32_External_Rela
);
2569 if (local_got_refcounts
!= NULL
)
2571 /* If the counters are 0 when we got here, we've
2572 miscounted somehow somewhere, an internal error. */
2573 BFD_ASSERT (local_got_refcounts
[r_symndx
] > 0);
2574 --local_got_refcounts
[r_symndx
];
2576 BFD_ASSERT (*specific_refcount
> 0);
2577 --*specific_refcount
;
2578 if (*specific_refcount
== 0)
2580 /* We don't need the .got entry any more. */
2581 sgot
->size
-= got_element_size
;
2582 if (bfd_link_pic (info
))
2583 srelgot
->size
-= sizeof (Elf32_External_Rela
);
2588 case R_CRIS_16_GOTPLT
:
2589 case R_CRIS_32_GOTPLT
:
2590 /* For local symbols, treat these like GOT relocs. */
2592 goto local_got_reloc
;
2594 /* For global symbols, adjust the reloc-specific refcount. */
2595 elf_cris_hash_entry (h
)->gotplt_refcount
--;
2598 case R_CRIS_32_PLT_GOTREL
:
2599 /* FIXME: We don't garbage-collect away the .got section. */
2600 if (local_got_refcounts
!= NULL
)
2601 local_got_refcounts
[-1]--;
2607 case R_CRIS_8_PCREL
:
2608 case R_CRIS_16_PCREL
:
2609 case R_CRIS_32_PCREL
:
2610 case R_CRIS_32_PLT_PCREL
:
2611 /* Negate the increment we did in cris_elf_check_relocs. */
2614 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2615 && h
->plt
.refcount
> 0)
2620 case R_CRIS_32_DTPREL
:
2621 /* This'd be a .dtpreld entry in e.g. debug info. */
2622 if ((sec
->flags
& SEC_ALLOC
) == 0)
2625 case R_CRIS_16_DTPREL
:
2626 htab
->dtpmod_refcount
--;
2627 if (htab
->dtpmod_refcount
== 0)
2628 htab
->next_gotplt_entry
-= 8;
2629 BFD_ASSERT (local_got_refcounts
!= NULL
);
2630 local_got_refcounts
[-1]--;
2641 /* The elf_backend_plt_sym_val hook function. */
2644 cris_elf_plt_sym_val (bfd_vma i ATTRIBUTE_UNUSED
, const asection
*plt
,
2647 bfd_size_type plt_entry_size
;
2648 bfd_size_type pltoffs
;
2649 bfd
*abfd
= plt
->owner
;
2651 /* Same for CRIS and CRIS v32; see elf_cris_(|pic_)plt_entry(|_v32)[]. */
2652 bfd_size_type plt_entry_got_offset
= 2;
2653 bfd_size_type plt_sec_size
;
2654 bfd_size_type got_vma_for_dyn
;
2657 /* FIXME: the .got section should be readily available also when
2658 we're not linking. */
2659 if ((got
= bfd_get_section_by_name (abfd
, ".got")) == NULL
)
2660 return (bfd_vma
) -1;
2662 plt_sec_size
= bfd_section_size (plt
->owner
, plt
);
2664 = (bfd_get_mach (abfd
) == bfd_mach_cris_v32
2665 ? PLT_ENTRY_SIZE_V32
: PLT_ENTRY_SIZE
);
2667 /* Data in PLT is GOT-relative for DYN, but absolute for EXE. */
2668 got_vma_for_dyn
= (abfd
->flags
& EXEC_P
) ? 0 : got
->vma
;
2670 /* Because we can have merged GOT entries; a single .got entry for
2671 both GOT and the PLT part of the GOT (.got.plt), the index of the
2672 reloc in .rela.plt is not the same as the index in the PLT.
2673 Instead, we have to hunt down the GOT offset in the PLT that
2674 corresponds to that of this reloc. Unfortunately, we will only
2675 be called for the .rela.plt relocs, so we'll miss synthetic
2676 symbols for .plt entries with merged GOT entries. (FIXME:
2677 fixable by providing our own bfd_elf32_get_synthetic_symtab.
2678 Doesn't seem worthwile at time of this writing.) FIXME: we've
2679 gone from O(1) to O(N) (N number of PLT entries) for finding each
2680 PLT address. Shouldn't matter in practice though. */
2682 for (pltoffs
= plt_entry_size
;
2683 pltoffs
< plt_sec_size
;
2684 pltoffs
+= plt_entry_size
)
2686 bfd_size_type got_offset
;
2687 bfd_byte gotoffs_raw
[4];
2689 if (!bfd_get_section_contents (abfd
, (asection
*) plt
, gotoffs_raw
,
2690 pltoffs
+ plt_entry_got_offset
,
2691 sizeof (gotoffs_raw
)))
2692 return (bfd_vma
) -1;
2694 got_offset
= bfd_get_32 (abfd
, gotoffs_raw
);
2695 if (got_offset
+ got_vma_for_dyn
== rel
->address
)
2696 return plt
->vma
+ pltoffs
;
2699 /* While it's tempting to BFD_ASSERT that we shouldn't get here,
2700 that'd not be graceful behavior for invalid input. */
2701 return (bfd_vma
) -1;
2704 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
2705 entry but we found we will not create any. Called when we find we will
2706 not have any PLT for this symbol, by for example
2707 elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
2708 or elf_cris_size_dynamic_sections if no dynamic sections will be
2709 created (we're only linking static objects). */
2712 elf_cris_adjust_gotplt_to_got (struct elf_cris_link_hash_entry
*h
, void * p
)
2714 struct bfd_link_info
*info
= (struct bfd_link_info
*) p
;
2716 /* A GOTPLT reloc, when activated, is supposed to be included into
2717 the PLT refcount. */
2718 BFD_ASSERT (h
->gotplt_refcount
== 0
2719 || h
->gotplt_refcount
<= h
->root
.plt
.refcount
);
2721 /* If nobody wanted a GOTPLT with this symbol, we're done. */
2722 if (h
->gotplt_refcount
<= 0)
2725 if (h
->reg_got_refcount
> 0)
2727 /* There's a GOT entry for this symbol. Just adjust the refcounts.
2728 Probably not necessary at this stage, but keeping them accurate
2729 helps avoiding surprises later. */
2730 h
->root
.got
.refcount
+= h
->gotplt_refcount
;
2731 h
->reg_got_refcount
+= h
->gotplt_refcount
;
2732 h
->gotplt_refcount
= 0;
2736 /* No GOT entry for this symbol. We need to create one. */
2740 sgot
= elf_hash_table (info
)->sgot
;
2741 srelgot
= elf_hash_table (info
)->srelgot
;
2743 /* Put accurate refcounts there. */
2744 h
->root
.got
.refcount
+= h
->gotplt_refcount
;
2745 h
->reg_got_refcount
= h
->gotplt_refcount
;
2747 h
->gotplt_refcount
= 0;
2749 /* We always have a .got and a .rela.got section if there were
2750 GOTPLT relocs in input. */
2751 BFD_ASSERT (sgot
!= NULL
&& srelgot
!= NULL
);
2753 /* Allocate space in the .got section. */
2756 /* Allocate relocation space. */
2757 srelgot
->size
+= sizeof (Elf32_External_Rela
);
2763 /* Try to fold PLT entries with GOT entries. There are two cases when we
2766 - When all PLT references are GOTPLT references, and there are GOT
2767 references, and this is not the executable. We don't have to
2768 generate a PLT at all.
2770 - When there are both (ordinary) PLT references and GOT references,
2771 and this isn't the executable.
2772 We want to make the PLT reference use the ordinary GOT entry rather
2773 than R_CRIS_JUMP_SLOT, a run-time dynamically resolved GOTPLT entry,
2774 since the GOT entry will have to be resolved at startup anyway.
2776 Though the latter case is handled when room for the PLT is allocated,
2779 By folding into the GOT, we may need a round-trip to a PLT in the
2780 executable for calls, a loss in performance. Still, losing a
2781 reloc is a win in size and at least in start-up time.
2783 Note that this function is called before symbols are forced local by
2784 version scripts. The differing cases are handled by
2785 elf_cris_hide_symbol. */
2788 elf_cris_try_fold_plt_to_got (struct elf_cris_link_hash_entry
*h
, void * p
)
2790 struct bfd_link_info
*info
= (struct bfd_link_info
*) p
;
2792 /* If there are no GOT references for this symbol, we can't fold any
2793 other reference so there's nothing to do. Likewise if there are no
2794 PLT references; GOTPLT references included. */
2795 if (h
->root
.got
.refcount
<= 0 || h
->root
.plt
.refcount
<= 0)
2798 /* GOTPLT relocs are supposed to be included into the PLT refcount. */
2799 BFD_ASSERT (h
->gotplt_refcount
<= h
->root
.plt
.refcount
);
2801 if (h
->gotplt_refcount
== h
->root
.plt
.refcount
)
2803 /* The only PLT references are GOTPLT references, and there are GOT
2804 references. Convert PLT to GOT references. */
2805 if (! elf_cris_adjust_gotplt_to_got (h
, info
))
2808 /* Clear the PLT references, so no PLT will be created. */
2809 h
->root
.plt
.offset
= (bfd_vma
) -1;
2815 /* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
2816 to use a GOT entry (and create one) rather than requiring a GOTPLT
2820 elf_cris_hide_symbol (struct bfd_link_info
*info
,
2821 struct elf_link_hash_entry
*h
,
2822 bfd_boolean force_local
)
2824 elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry
*) h
, info
);
2826 _bfd_elf_link_hash_hide_symbol (info
, h
, force_local
);
2829 /* Adjust a symbol defined by a dynamic object and referenced by a
2830 regular object. The current definition is in some section of the
2831 dynamic object, but we're not including those sections. We have to
2832 change the definition to something the rest of the link can
2836 elf_cris_adjust_dynamic_symbol (struct bfd_link_info
*info
,
2837 struct elf_link_hash_entry
*h
)
2839 struct elf_cris_link_hash_table
* htab
;
2843 bfd_size_type plt_entry_size
;
2845 htab
= elf_cris_hash_table (info
);
2849 dynobj
= htab
->root
.dynobj
;
2851 /* Make sure we know what is going on here. */
2852 BFD_ASSERT (dynobj
!= NULL
2854 || h
->u
.weakdef
!= NULL
2857 && !h
->def_regular
)));
2860 = (bfd_get_mach (dynobj
) == bfd_mach_cris_v32
2861 ? PLT_ENTRY_SIZE_V32
: PLT_ENTRY_SIZE
);
2863 /* If this is a function, put it in the procedure linkage table. We
2864 will fill in the contents of the procedure linkage table later,
2865 when we know the address of the .got section. */
2866 if (h
->type
== STT_FUNC
2869 /* If we link a program (not a DSO), we'll get rid of unnecessary
2870 PLT entries; we point to the actual symbols -- even for pic
2871 relocs, because a program built with -fpic should have the same
2872 result as one built without -fpic, specifically considering weak
2874 FIXME: m68k and i386 differ here, for unclear reasons. */
2875 if (! bfd_link_pic (info
)
2878 /* This case can occur if we saw a PLT reloc in an input file,
2879 but the symbol was not defined by a dynamic object. In such
2880 a case, we don't actually need to build a procedure linkage
2881 table, and we can just do an absolute or PC reloc instead, or
2882 change a .got.plt index to a .got index for GOTPLT relocs. */
2883 BFD_ASSERT (h
->needs_plt
);
2885 h
->plt
.offset
= (bfd_vma
) -1;
2887 elf_cris_adjust_gotplt_to_got ((struct
2888 elf_cris_link_hash_entry
*) h
,
2892 /* If we had a R_CRIS_GLOB_DAT that didn't have to point to a PLT;
2893 where a pointer-equivalent symbol was unimportant (i.e. more
2894 like R_CRIS_JUMP_SLOT after symbol evaluation) we could get rid
2895 of the PLT. We can't for the executable, because the GOT
2896 entries will point to the PLT there (and be constant). */
2897 if (bfd_link_pic (info
)
2898 && !elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry
*)
2902 /* GC or folding may have rendered this entry unused. */
2903 if (h
->plt
.refcount
<= 0)
2906 h
->plt
.offset
= (bfd_vma
) -1;
2910 /* Make sure this symbol is output as a dynamic symbol. */
2911 if (h
->dynindx
== -1)
2913 if (! bfd_elf_link_record_dynamic_symbol (info
, h
))
2917 s
= htab
->root
.splt
;
2918 BFD_ASSERT (s
!= NULL
);
2920 /* If this is the first .plt entry, make room for the special
2923 s
->size
+= plt_entry_size
;
2925 /* If this symbol is not defined in a regular file, and we are
2926 not generating a shared library, then set the symbol to this
2927 location in the .plt. */
2928 if (!bfd_link_pic (info
)
2931 h
->root
.u
.def
.section
= s
;
2932 h
->root
.u
.def
.value
= s
->size
;
2935 /* If there's already a GOT entry, use that, not a .got.plt. A
2936 GOT field still has a reference count when we get here; it's
2937 not yet changed to an offset. We can't do this for an
2938 executable, because then the reloc associated with the PLT
2939 would get a non-PLT reloc pointing to the PLT. FIXME: Move
2940 this to elf_cris_try_fold_plt_to_got. */
2941 if (bfd_link_pic (info
) && h
->got
.refcount
> 0)
2943 h
->got
.refcount
+= h
->plt
.refcount
;
2945 /* Mark the PLT offset to use the GOT entry by setting the low
2946 bit in the plt offset; it is always a multiple of
2947 plt_entry_size (which is at least a multiple of 2). */
2948 BFD_ASSERT ((s
->size
% plt_entry_size
) == 0);
2950 /* Change the PLT refcount to an offset. */
2951 h
->plt
.offset
= s
->size
;
2953 /* By not setting gotplt_offset (i.e. it remains at 0), we signal
2954 that the got entry should be used instead. */
2955 BFD_ASSERT (((struct elf_cris_link_hash_entry
*)
2956 h
)->gotplt_offset
== 0);
2958 /* Make room for this entry. */
2959 s
->size
+= plt_entry_size
;
2964 /* No GOT reference for this symbol; prepare for an ordinary PLT. */
2965 h
->plt
.offset
= s
->size
;
2967 /* Make room for this entry. */
2968 s
->size
+= plt_entry_size
;
2970 /* We also need to make an entry in the .got.plt section, which
2971 will be placed in the .got section by the linker script. */
2972 ((struct elf_cris_link_hash_entry
*) h
)->gotplt_offset
2973 = htab
->next_gotplt_entry
;
2974 htab
->next_gotplt_entry
+= 4;
2976 s
= htab
->root
.sgotplt
;
2977 BFD_ASSERT (s
!= NULL
);
2980 /* We also need to make an entry in the .rela.plt section. */
2982 s
= htab
->root
.srelplt
;
2983 BFD_ASSERT (s
!= NULL
);
2984 s
->size
+= sizeof (Elf32_External_Rela
);
2989 /* Reinitialize the plt offset now that it is not used as a reference
2991 h
->plt
.offset
= (bfd_vma
) -1;
2993 /* If this is a weak symbol, and there is a real definition, the
2994 processor independent code will have arranged for us to see the
2995 real definition first, and we can just use the same value. */
2996 if (h
->u
.weakdef
!= NULL
)
2998 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
2999 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
3000 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
3001 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
3005 /* This is a reference to a symbol defined by a dynamic object which
3006 is not a function. */
3008 /* If we are creating a shared library, we must presume that the
3009 only references to the symbol are via the global offset table.
3010 For such cases we need not do anything here; the relocations will
3011 be handled correctly by relocate_section. */
3012 if (bfd_link_pic (info
))
3015 /* If there are no references to this symbol that do not use the
3016 GOT, we don't need to generate a copy reloc. */
3017 if (!h
->non_got_ref
)
3020 /* We must allocate the symbol in our .dynbss section, which will
3021 become part of the .bss section of the executable. There will be
3022 an entry for this symbol in the .dynsym section. The dynamic
3023 object will contain position independent code, so all references
3024 from the dynamic object to this symbol will go through the global
3025 offset table. The dynamic linker will use the .dynsym entry to
3026 determine the address it must put in the global offset table, so
3027 both the dynamic object and the regular object will refer to the
3028 same memory location for the variable. */
3030 /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
3031 copy the initial value out of the dynamic object and into the
3032 runtime process image. We need to remember the offset into the
3033 .rela.bss section we are going to use. */
3035 if ((h
->root
.u
.def
.section
->flags
& SEC_READONLY
) != 0)
3037 s
= htab
->root
.sdynrelro
;
3038 srel
= htab
->root
.sreldynrelro
;
3042 s
= htab
->root
.sdynbss
;
3043 srel
= htab
->root
.srelbss
;
3045 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0 && h
->size
!= 0)
3047 BFD_ASSERT (srel
!= NULL
);
3048 srel
->size
+= sizeof (Elf32_External_Rela
);
3052 BFD_ASSERT (s
!= NULL
);
3054 return _bfd_elf_adjust_dynamic_copy (info
, h
, s
);
3057 /* Adjust our "subclass" elements for an indirect symbol. */
3060 elf_cris_copy_indirect_symbol (struct bfd_link_info
*info
,
3061 struct elf_link_hash_entry
*dir
,
3062 struct elf_link_hash_entry
*ind
)
3064 struct elf_cris_link_hash_entry
*edir
, *eind
;
3066 edir
= (struct elf_cris_link_hash_entry
*) dir
;
3067 eind
= (struct elf_cris_link_hash_entry
*) ind
;
3069 /* Only indirect symbols are replaced; we're not interested in
3070 updating any of EIND's fields for other symbols. */
3071 if (eind
->root
.root
.type
!= bfd_link_hash_indirect
)
3073 /* Still, we need to copy flags for e.g. weak definitions. */
3074 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3078 BFD_ASSERT (edir
->gotplt_offset
== 0 || eind
->gotplt_offset
== 0);
3080 #define XMOVOPZ(F, OP, Z) edir->F OP eind->F; eind->F = Z
3081 #define XMOVE(F) XMOVOPZ (F, +=, 0)
3082 if (eind
->pcrel_relocs_copied
!= NULL
)
3084 if (edir
->pcrel_relocs_copied
!= NULL
)
3086 struct elf_cris_pcrel_relocs_copied
**pp
;
3087 struct elf_cris_pcrel_relocs_copied
*p
;
3089 /* Add reloc counts against the indirect sym to the direct sym
3090 list. Merge any entries against the same section. */
3091 for (pp
= &eind
->pcrel_relocs_copied
; *pp
!= NULL
;)
3093 struct elf_cris_pcrel_relocs_copied
*q
;
3095 for (q
= edir
->pcrel_relocs_copied
; q
!= NULL
; q
= q
->next
)
3096 if (q
->section
== p
->section
)
3098 q
->count
+= p
->count
;
3105 *pp
= edir
->pcrel_relocs_copied
;
3107 XMOVOPZ (pcrel_relocs_copied
, =, NULL
);
3109 XMOVE (gotplt_refcount
);
3110 XMOVE (gotplt_offset
);
3111 XMOVE (reg_got_refcount
);
3112 XMOVE (tprel_refcount
);
3113 XMOVE (dtp_refcount
);
3117 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3120 /* Look through the relocs for a section during the first phase. */
3123 cris_elf_check_relocs (bfd
*abfd
,
3124 struct bfd_link_info
*info
,
3126 const Elf_Internal_Rela
*relocs
)
3128 struct elf_cris_link_hash_table
* htab
;
3130 Elf_Internal_Shdr
*symtab_hdr
;
3131 struct elf_link_hash_entry
**sym_hashes
;
3132 bfd_signed_vma
*local_got_refcounts
;
3133 const Elf_Internal_Rela
*rel
;
3134 const Elf_Internal_Rela
*rel_end
;
3139 if (bfd_link_relocatable (info
))
3142 htab
= elf_cris_hash_table (info
);
3146 dynobj
= elf_hash_table (info
)->dynobj
;
3147 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
3148 sym_hashes
= elf_sym_hashes (abfd
);
3149 local_got_refcounts
= elf_local_got_refcounts (abfd
);
3155 rel_end
= relocs
+ sec
->reloc_count
;
3156 for (rel
= relocs
; rel
< rel_end
; rel
++)
3158 struct elf_link_hash_entry
*h
;
3159 unsigned long r_symndx
;
3160 enum elf_cris_reloc_type r_type
;
3161 bfd_signed_vma got_element_size
= 4;
3162 unsigned long r_symndx_lgot
= INT_MAX
;
3164 r_symndx
= ELF32_R_SYM (rel
->r_info
);
3165 if (r_symndx
< symtab_hdr
->sh_info
)
3168 r_symndx_lgot
= LGOT_REG_NDX (r_symndx
);
3172 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
3173 while (h
->root
.type
== bfd_link_hash_indirect
3174 || h
->root
.type
== bfd_link_hash_warning
)
3175 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3177 /* PR15323, ref flags aren't set for references in the same
3179 h
->root
.non_ir_ref
= 1;
3182 r_type
= ELF32_R_TYPE (rel
->r_info
);
3184 /* Some relocs require linker-created sections; we need to hang them
3185 on the first input bfd we found that contained dynamic relocs. */
3188 case R_CRIS_32_DTPREL
:
3189 if ((sec
->flags
& SEC_ALLOC
) == 0)
3190 /* This'd be a .dtpreld entry in e.g. debug info. We have
3191 several different switch statements below, but none of
3192 that is needed; we need no preparations for resolving
3193 R_CRIS_32_DTPREL into a non-allocated section (debug
3194 info), so let's just move on to the next
3198 case R_CRIS_16_DTPREL
:
3199 /* The first .got.plt entry is right after the R_CRIS_DTPMOD
3200 entry at index 3. */
3201 if (htab
->dtpmod_refcount
== 0)
3202 htab
->next_gotplt_entry
+= 8;
3204 htab
->dtpmod_refcount
++;
3209 case R_CRIS_16_GOT_GD
:
3210 case R_CRIS_32_GOT_GD
:
3211 case R_CRIS_32_GOT_TPREL
:
3212 case R_CRIS_16_GOT_TPREL
:
3215 case R_CRIS_32_GOTREL
:
3216 case R_CRIS_32_PLT_GOTREL
:
3217 case R_CRIS_32_PLT_PCREL
:
3218 case R_CRIS_16_GOTPLT
:
3219 case R_CRIS_32_GOTPLT
:
3222 elf_hash_table (info
)->dynobj
= dynobj
= abfd
;
3224 /* We could handle this if we can get a handle on the
3225 output bfd in elf_cris_adjust_dynamic_symbol. Failing
3226 that, we must insist on dynobj being a specific mach. */
3227 if (bfd_get_mach (dynobj
) == bfd_mach_cris_v10_v32
)
3230 /* xgettext:c-format */
3231 (_("%B, section %A:\n v10/v32 compatible object %s"
3232 " must not contain a PIC relocation"),
3240 /* We may have a dynobj but no .got section, if machine-
3241 independent parts of the linker found a reason to create
3242 a dynobj. We want to create the .got section now, so we
3243 can assume it's always present whenever there's a dynobj.
3244 It's ok to call this function more than once. */
3245 if (!_bfd_elf_create_got_section (dynobj
, info
))
3248 sgot
= elf_hash_table (info
)->sgot
;
3249 srelgot
= elf_hash_table (info
)->srelgot
;
3252 if (local_got_refcounts
== NULL
)
3256 /* We use index local_got_refcounts[-1] to count all
3257 GOT-relative relocations that do not have explicit
3259 amt
= LGOT_ALLOC_NELTS_FOR (symtab_hdr
->sh_info
) + 1;
3260 amt
*= sizeof (bfd_signed_vma
);
3261 local_got_refcounts
= ((bfd_signed_vma
*) bfd_zalloc (abfd
, amt
));
3262 if (local_got_refcounts
== NULL
)
3265 local_got_refcounts
++;
3266 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
3274 /* Warn and error for invalid input. */
3278 case R_CRIS_32_TPREL
:
3279 case R_CRIS_16_TPREL
:
3281 if (bfd_link_pic (info
))
3284 /* xgettext:c-format */
3285 (_("%B, section %A:\n relocation %s not valid"
3286 " in a shared object;"
3287 " typically an option mixup, recompile with -fPIC"),
3290 cris_elf_howto_table
[r_type
].name
);
3291 /* Don't return FALSE here; we want messages for all of
3292 these and the error behavior is ungraceful
3302 case R_CRIS_16_GOT_GD
:
3303 case R_CRIS_32_GOT_GD
:
3304 /* These are requests for tls_index entries, run-time R_CRIS_DTP. */
3305 got_element_size
= 8;
3306 r_symndx_lgot
= LGOT_DTP_NDX (r_symndx
);
3309 case R_CRIS_16_DTPREL
:
3310 case R_CRIS_32_DTPREL
:
3311 /* These two just request for the constant-index
3312 module-local tls_index-sized GOT entry, which we add
3317 case R_CRIS_32_GOT_TPREL
:
3318 case R_CRIS_16_GOT_TPREL
:
3319 r_symndx_lgot
= LGOT_TPREL_NDX (r_symndx
);
3321 /* Those relocs also require that a DSO is of type
3322 Initial Exec. Like other targets, we don't reset this
3323 flag even if the relocs are GC:ed away. */
3324 if (bfd_link_pic (info
))
3325 info
->flags
|= DF_STATIC_TLS
;
3328 /* Let's list the other assembler-generated TLS-relocs too,
3329 just to show that they're not forgotten. */
3330 case R_CRIS_16_TPREL
:
3331 case R_CRIS_32_TPREL
:
3338 case R_CRIS_16_GOTPLT
:
3339 case R_CRIS_32_GOTPLT
:
3340 /* Mark that we need a GOT entry if the PLT entry (and its GOT
3341 entry) is eliminated. We can only do this for a non-local
3345 elf_cris_hash_entry (h
)->gotplt_refcount
++;
3346 goto handle_gotplt_reloc
;
3348 /* If h is NULL then this is a local symbol, and we must make a
3349 GOT entry for it, so handle it like a GOT reloc. */
3354 case R_CRIS_16_GOT_GD
:
3355 case R_CRIS_32_GOT_GD
:
3356 case R_CRIS_32_GOT_TPREL
:
3357 case R_CRIS_16_GOT_TPREL
:
3360 /* This symbol requires a global offset table entry. */
3363 if (h
->got
.refcount
== 0)
3365 /* Make sure this symbol is output as a dynamic symbol. */
3366 if (h
->dynindx
== -1)
3368 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
3373 /* Update the sum of reloc counts for this symbol. */
3380 if (elf_cris_hash_entry (h
)->reg_got_refcount
== 0)
3382 /* Allocate space in the .got section. */
3383 sgot
->size
+= got_element_size
;
3384 /* Allocate relocation space. */
3385 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3387 elf_cris_hash_entry (h
)->reg_got_refcount
++;
3391 case R_CRIS_16_GOT_GD
:
3392 case R_CRIS_32_GOT_GD
:
3393 if (elf_cris_hash_entry (h
)->dtp_refcount
== 0)
3395 /* Allocate space in the .got section. */
3396 sgot
->size
+= got_element_size
;
3397 /* Allocate relocation space. */
3398 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3400 elf_cris_hash_entry (h
)->dtp_refcount
++;
3404 case R_CRIS_32_GOT_TPREL
:
3405 case R_CRIS_16_GOT_TPREL
:
3406 if (elf_cris_hash_entry (h
)->tprel_refcount
== 0)
3408 /* Allocate space in the .got section. */
3409 sgot
->size
+= got_element_size
;
3410 /* Allocate relocation space. */
3411 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3413 elf_cris_hash_entry (h
)->tprel_refcount
++;
3423 /* This is a global offset table entry for a local symbol. */
3424 if (local_got_refcounts
[r_symndx_lgot
] == 0)
3426 sgot
->size
+= got_element_size
;
3427 if (bfd_link_pic (info
))
3429 /* If we are generating a shared object, we need
3430 to output a R_CRIS_RELATIVE reloc so that the
3431 dynamic linker can adjust this GOT entry.
3432 Similarly for non-regular got entries. */
3433 srelgot
->size
+= sizeof (Elf32_External_Rela
);
3436 /* Update the reloc-specific count. */
3437 local_got_refcounts
[r_symndx_lgot
]++;
3439 /* This one is the sum of all the others. */
3440 local_got_refcounts
[r_symndx
]++;
3444 case R_CRIS_16_DTPREL
:
3445 case R_CRIS_32_DTPREL
:
3446 case R_CRIS_32_GOTREL
:
3447 /* This reference requires a global offset table.
3448 FIXME: The actual refcount isn't used currently; the .got
3449 section can't be removed if there were any references in the
3451 local_got_refcounts
[-1]++;
3454 handle_gotplt_reloc
:
3456 case R_CRIS_32_PLT_GOTREL
:
3457 /* This reference requires a global offset table. */
3458 local_got_refcounts
[-1]++;
3461 case R_CRIS_32_PLT_PCREL
:
3462 /* This symbol requires a procedure linkage table entry. We
3463 actually build the entry in adjust_dynamic_symbol,
3464 because this might be a case of linking PIC code which is
3465 never referenced by a dynamic object, in which case we
3466 don't need to generate a procedure linkage table entry
3469 /* Beware: if we'd check for visibility of the symbol here
3470 (and not marking the need for a PLT when non-visible), we'd
3471 get into trouble with keeping handling consistent with
3472 regards to relocs found before definition and GOTPLT
3473 handling. Eliminable PLT entries will be dealt with later
3485 /* Let's help debug shared library creation. Any of these
3486 relocs *can* be used in shared libs, but pages containing
3487 them cannot be shared, so they're not appropriate for
3488 common use. Don't warn for sections we don't care about,
3489 such as debug sections or non-constant sections. We
3490 can't help tables of (global) function pointers, for
3491 example, though they must be emitted in a (writable) data
3492 section to avoid having impure text sections. */
3493 if (bfd_link_pic (info
)
3494 && (sec
->flags
& SEC_ALLOC
) != 0
3495 && (sec
->flags
& SEC_READONLY
) != 0)
3497 /* FIXME: How do we make this optionally a warning only? */
3499 /* xgettext:c-format */
3500 (_("%B, section %A:\n relocation %s should not"
3501 " be used in a shared object; recompile with -fPIC"),
3504 cris_elf_howto_table
[r_type
].name
);
3507 /* We don't need to handle relocs into sections not going into
3508 the "real" output. */
3509 if ((sec
->flags
& SEC_ALLOC
) == 0)
3516 /* Make sure a plt entry is created for this symbol if it
3517 turns out to be a function defined by a dynamic object. */
3518 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3522 /* If we are creating a shared library and this is not a local
3523 symbol, we need to copy the reloc into the shared library.
3524 However when linking with -Bsymbolic and this is a global
3525 symbol which is defined in an object we are including in the
3526 link (i.e., DEF_REGULAR is set), then we can resolve the
3527 reloc directly. At this point we have not seen all the input
3528 files, so it is possible that DEF_REGULAR is not set now but
3529 will be set later (it is never cleared). In case of a weak
3530 definition, DEF_REGULAR may be cleared later by a strong
3531 definition in a shared library. We account for that
3532 possibility below by storing information in the relocs_copied
3533 field of the hash table entry. A similar situation occurs
3534 when creating shared libraries and symbol visibility changes
3535 render the symbol local. */
3537 /* No need to do anything if we're not creating a shared object. */
3538 if (! bfd_link_pic (info
))
3541 /* We may need to create a reloc section in the dynobj and made room
3545 sreloc
= _bfd_elf_make_dynamic_reloc_section
3546 (sec
, dynobj
, 2, abfd
, /*rela?*/ TRUE
);
3552 if (sec
->flags
& SEC_READONLY
)
3553 info
->flags
|= DF_TEXTREL
;
3555 sreloc
->size
+= sizeof (Elf32_External_Rela
);
3558 case R_CRIS_8_PCREL
:
3559 case R_CRIS_16_PCREL
:
3560 case R_CRIS_32_PCREL
:
3565 /* Make sure a plt entry is created for this symbol if it
3566 turns out to be a function defined by a dynamic object. */
3567 if (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3571 /* If we are creating a shared library and this is not a local
3572 symbol, we need to copy the reloc into the shared library.
3573 However when linking with -Bsymbolic and this is a global
3574 symbol which is defined in an object we are including in the
3575 link (i.e., DEF_REGULAR is set), then we can resolve the
3576 reloc directly. At this point we have not seen all the input
3577 files, so it is possible that DEF_REGULAR is not set now but
3578 will be set later (it is never cleared). In case of a weak
3579 definition, DEF_REGULAR may be cleared later by a strong
3580 definition in a shared library. We account for that
3581 possibility below by storing information in the relocs_copied
3582 field of the hash table entry. A similar situation occurs
3583 when creating shared libraries and symbol visibility changes
3584 render the symbol local. */
3586 /* No need to do anything if we're not creating a shared object. */
3587 if (! bfd_link_pic (info
))
3590 /* We don't need to handle relocs into sections not going into
3591 the "real" output. */
3592 if ((sec
->flags
& SEC_ALLOC
) == 0)
3595 /* If the symbol is local, then we know already we can
3596 eliminate the reloc. */
3597 if (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
)
3600 /* If this is with -Bsymbolic and the symbol isn't weak, and
3601 is defined by an ordinary object (the ones we include in
3602 this shared library) then we can also eliminate the
3603 reloc. See comment above for more eliminable cases which
3604 we can't identify at this time. */
3605 if (SYMBOLIC_BIND (info
, h
)
3606 && h
->root
.type
!= bfd_link_hash_defweak
3610 /* We may need to create a reloc section in the dynobj and made room
3614 sreloc
= _bfd_elf_make_dynamic_reloc_section
3615 (sec
, dynobj
, 2, abfd
, /*rela?*/ TRUE
);
3621 sreloc
->size
+= sizeof (Elf32_External_Rela
);
3623 /* We count the number of PC relative relocations we have
3624 entered for this symbol, so that we can discard them
3625 again if the symbol is later defined by a regular object.
3626 We know that h is really a pointer to an
3627 elf_cris_link_hash_entry. */
3629 struct elf_cris_link_hash_entry
*eh
;
3630 struct elf_cris_pcrel_relocs_copied
*p
;
3632 eh
= elf_cris_hash_entry (h
);
3634 for (p
= eh
->pcrel_relocs_copied
; p
!= NULL
; p
= p
->next
)
3635 if (p
->section
== sec
)
3640 p
= ((struct elf_cris_pcrel_relocs_copied
*)
3641 bfd_alloc (dynobj
, (bfd_size_type
) sizeof *p
));
3644 p
->next
= eh
->pcrel_relocs_copied
;
3645 eh
->pcrel_relocs_copied
= p
;
3655 /* This relocation describes the C++ object vtable hierarchy.
3656 Reconstruct it for later use during GC. */
3657 case R_CRIS_GNU_VTINHERIT
:
3658 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
3662 /* This relocation describes which C++ vtable entries are actually
3663 used. Record for later use during GC. */
3664 case R_CRIS_GNU_VTENTRY
:
3665 BFD_ASSERT (h
!= NULL
);
3667 && !bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
3671 case R_CRIS_16_TPREL
:
3672 case R_CRIS_32_TPREL
:
3673 /* Already warned above, when necessary. */
3677 /* Other relocs do not appear here. */
3678 bfd_set_error (bfd_error_bad_value
);
3686 /* Set the sizes of the dynamic sections. */
3689 elf_cris_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
3690 struct bfd_link_info
*info
)
3692 struct elf_cris_link_hash_table
* htab
;
3698 htab
= elf_cris_hash_table (info
);
3702 dynobj
= htab
->root
.dynobj
;
3703 BFD_ASSERT (dynobj
!= NULL
);
3705 if (htab
->root
.dynamic_sections_created
)
3707 /* Set the contents of the .interp section to the interpreter. */
3708 if (bfd_link_executable (info
) && !info
->nointerp
)
3710 s
= bfd_get_linker_section (dynobj
, ".interp");
3711 BFD_ASSERT (s
!= NULL
);
3712 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3713 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3718 /* Adjust all expected GOTPLT uses to use a GOT entry instead. */
3719 elf_cris_link_hash_traverse (htab
, elf_cris_adjust_gotplt_to_got
,
3722 /* We may have created entries in the .rela.got section.
3723 However, if we are not creating the dynamic sections, we will
3724 not actually use these entries. Reset the size of .rela.got,
3725 which will cause it to get stripped from the output file
3727 s
= htab
->root
.srelgot
;
3732 /* If this is a -Bsymbolic shared link, then we need to discard all PC
3733 relative relocs against symbols defined in a regular object. We
3734 allocated space for them in the check_relocs routine, but we will not
3735 fill them in in the relocate_section routine. We also discard space
3736 for relocs that have become for local symbols due to symbol
3737 visibility changes. For programs, we discard space for relocs for
3738 symbols not referenced by any dynamic object. */
3739 if (bfd_link_pic (info
))
3740 elf_cris_link_hash_traverse (htab
,
3741 elf_cris_discard_excess_dso_dynamics
,
3744 elf_cris_link_hash_traverse (htab
,
3745 elf_cris_discard_excess_program_dynamics
,
3748 /* The check_relocs and adjust_dynamic_symbol entry points have
3749 determined the sizes of the various dynamic sections. Allocate
3753 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
3757 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
3760 /* It's OK to base decisions on the section name, because none
3761 of the dynobj section names depend upon the input files. */
3762 name
= bfd_get_section_name (dynobj
, s
);
3764 if (strcmp (name
, ".plt") == 0)
3766 /* Remember whether there is a PLT. */
3769 else if (strcmp (name
, ".got.plt") == 0)
3771 /* The .got.plt contains the .got header as well as the
3772 actual .got.plt contents. The .got header may contain a
3773 R_CRIS_DTPMOD entry at index 3. */
3774 s
->size
+= htab
->dtpmod_refcount
!= 0
3777 else if (CONST_STRNEQ (name
, ".rela"))
3779 if (strcmp (name
, ".rela.got") == 0
3780 && htab
->dtpmod_refcount
!= 0
3781 && bfd_link_pic (info
))
3782 s
->size
+= sizeof (Elf32_External_Rela
);
3786 /* Remember whether there are any reloc sections other
3788 if (strcmp (name
, ".rela.plt") != 0)
3791 /* We use the reloc_count field as a counter if we need
3792 to copy relocs into the output file. */
3796 else if (! CONST_STRNEQ (name
, ".got")
3797 && strcmp (name
, ".dynbss") != 0
3798 && s
!= htab
->root
.sdynrelro
)
3800 /* It's not one of our sections, so don't allocate space. */
3806 /* If we don't need this section, strip it from the
3807 output file. This is mostly to handle .rela.bss and
3808 .rela.plt. We must create both sections in
3809 create_dynamic_sections, because they must be created
3810 before the linker maps input sections to output
3811 sections. The linker does that before
3812 adjust_dynamic_symbol is called, and it is that
3813 function which decides whether anything needs to go
3814 into these sections. */
3815 s
->flags
|= SEC_EXCLUDE
;
3819 if ((s
->flags
& SEC_HAS_CONTENTS
) == 0)
3822 /* Allocate memory for the section contents. We use bfd_zalloc here
3823 in case unused entries are not reclaimed before the section's
3824 contents are written out. This should not happen, but this way
3825 if it does, we will not write out garbage. For reloc sections,
3826 this will make entries have the type R_CRIS_NONE. */
3827 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
3828 if (s
->contents
== NULL
)
3832 if (elf_hash_table (info
)->dynamic_sections_created
)
3834 /* Add some entries to the .dynamic section. We fill in the
3835 values later, in elf_cris_finish_dynamic_sections, but we
3836 must add the entries now so that we get the correct size for
3837 the .dynamic section. The DT_DEBUG entry is filled in by the
3838 dynamic linker and used by the debugger. */
3839 #define add_dynamic_entry(TAG, VAL) \
3840 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3842 if (!bfd_link_pic (info
))
3844 if (!add_dynamic_entry (DT_DEBUG
, 0))
3850 if (!add_dynamic_entry (DT_PLTGOT
, 0)
3851 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
3852 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3853 || !add_dynamic_entry (DT_JMPREL
, 0))
3859 if (!add_dynamic_entry (DT_RELA
, 0)
3860 || !add_dynamic_entry (DT_RELASZ
, 0)
3861 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
3865 if ((info
->flags
& DF_TEXTREL
) != 0)
3867 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3869 info
->flags
|= DF_TEXTREL
;
3872 #undef add_dynamic_entry
3877 /* This function is called via elf_cris_link_hash_traverse if we are
3878 creating a shared object. In the -Bsymbolic case, it discards the
3879 space allocated to copy PC relative relocs against symbols which
3880 are defined in regular objects. For the normal non-symbolic case,
3881 we also discard space for relocs that have become local due to
3882 symbol visibility changes. We allocated space for them in the
3883 check_relocs routine, but we won't fill them in in the
3884 relocate_section routine. */
3887 elf_cris_discard_excess_dso_dynamics (struct elf_cris_link_hash_entry
*h
,
3890 struct elf_cris_pcrel_relocs_copied
*s
;
3891 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
3893 /* If a symbol has been forced local or we have found a regular
3894 definition for the symbolic link case, then we won't be needing
3896 if (h
->root
.def_regular
3897 && (h
->root
.forced_local
3898 || SYMBOLIC_BIND (info
, &h
->root
)))
3900 for (s
= h
->pcrel_relocs_copied
; s
!= NULL
; s
= s
->next
)
3903 = _bfd_elf_get_dynamic_reloc_section (elf_hash_table (info
)
3907 sreloc
->size
-= s
->count
* sizeof (Elf32_External_Rela
);
3912 /* If we have accounted for PC-relative relocs for read-only
3913 sections, now is the time to warn for them. We can't do it in
3914 cris_elf_check_relocs, because we don't know the status of all
3915 symbols at that time (and it's common to force symbols local
3918 for (s
= h
->pcrel_relocs_copied
; s
!= NULL
; s
= s
->next
)
3919 if ((s
->section
->flags
& SEC_READONLY
) != 0)
3921 /* FIXME: How do we make this optionally a warning only? */
3923 /* xgettext:c-format */
3924 (_("%B, section `%A', to symbol `%s':\n"
3925 " relocation %s should not be used"
3926 " in a shared object; recompile with -fPIC"),
3929 h
->root
.root
.root
.string
,
3930 cris_elf_howto_table
[s
->r_type
].name
);
3932 info
->flags
|= DF_TEXTREL
;
3938 /* This function is called via elf_cris_link_hash_traverse if we are *not*
3939 creating a shared object. We discard space for relocs for symbols put
3940 in the .got, but which we found we do not have to resolve at run-time. */
3943 elf_cris_discard_excess_program_dynamics (struct elf_cris_link_hash_entry
*h
,
3946 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
3948 /* If we're not creating a shared library and have a symbol which is
3949 referred to by .got references, but the symbol is defined locally,
3950 (or rather, not defined by a DSO) then lose the reloc for the .got
3951 (don't allocate room for it). Likewise for relocs for something
3952 for which we create a PLT. */
3953 if (!h
->root
.def_dynamic
3954 || h
->root
.plt
.refcount
> 0)
3956 if (h
->reg_got_refcount
> 0
3957 /* The size of this section is only valid and in sync with the
3958 various reference counts if we do dynamic; don't decrement it
3960 && elf_hash_table (info
)->dynamic_sections_created
)
3962 bfd
*dynobj
= elf_hash_table (info
)->dynobj
;
3963 asection
*srelgot
= elf_hash_table (info
)->srelgot
;
3965 BFD_ASSERT (dynobj
!= NULL
);
3966 BFD_ASSERT (srelgot
!= NULL
);
3968 srelgot
->size
-= sizeof (Elf32_External_Rela
);
3971 /* If the locally-defined symbol isn't used by a DSO, then we don't
3972 have to export it as a dynamic symbol. This was already done for
3973 functions; doing this for all symbols would presumably not
3974 introduce new problems. Of course we don't do this if we're
3975 exporting all dynamic symbols, or all data symbols, regardless of
3976 them being referenced or not. */
3977 if (! (info
->export_dynamic
3978 || (h
->root
.type
!= STT_FUNC
&& info
->dynamic_data
))
3979 && h
->root
.dynindx
!= -1
3980 && !h
->root
.def_dynamic
3981 && !h
->root
.ref_dynamic
)
3983 h
->root
.dynindx
= -1;
3984 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
3985 h
->root
.dynstr_index
);
3992 /* Reject a file depending on presence and expectation of prefixed
3993 underscores on symbols. */
3996 cris_elf_object_p (bfd
*abfd
)
3998 if (! cris_elf_set_mach_from_flags (abfd
, elf_elfheader (abfd
)->e_flags
))
4001 if ((elf_elfheader (abfd
)->e_flags
& EF_CRIS_UNDERSCORE
))
4002 return (bfd_get_symbol_leading_char (abfd
) == '_');
4004 return (bfd_get_symbol_leading_char (abfd
) == 0);
4007 /* Mark presence or absence of leading underscore. Set machine type
4008 flags from mach type. */
4011 cris_elf_final_write_processing (bfd
*abfd
,
4012 bfd_boolean linker ATTRIBUTE_UNUSED
)
4014 unsigned long e_flags
= elf_elfheader (abfd
)->e_flags
;
4016 e_flags
&= ~EF_CRIS_UNDERSCORE
;
4017 if (bfd_get_symbol_leading_char (abfd
) == '_')
4018 e_flags
|= EF_CRIS_UNDERSCORE
;
4020 switch (bfd_get_mach (abfd
))
4022 case bfd_mach_cris_v0_v10
:
4023 e_flags
|= EF_CRIS_VARIANT_ANY_V0_V10
;
4026 case bfd_mach_cris_v10_v32
:
4027 e_flags
|= EF_CRIS_VARIANT_COMMON_V10_V32
;
4030 case bfd_mach_cris_v32
:
4031 e_flags
|= EF_CRIS_VARIANT_V32
;
4035 _bfd_abort (__FILE__
, __LINE__
,
4036 _("Unexpected machine number"));
4039 elf_elfheader (abfd
)->e_flags
= e_flags
;
4042 /* Set the mach type from e_flags value. */
4045 cris_elf_set_mach_from_flags (bfd
*abfd
,
4046 unsigned long flags
)
4048 switch (flags
& EF_CRIS_VARIANT_MASK
)
4050 case EF_CRIS_VARIANT_ANY_V0_V10
:
4051 bfd_default_set_arch_mach (abfd
, bfd_arch_cris
, bfd_mach_cris_v0_v10
);
4054 case EF_CRIS_VARIANT_V32
:
4055 bfd_default_set_arch_mach (abfd
, bfd_arch_cris
, bfd_mach_cris_v32
);
4058 case EF_CRIS_VARIANT_COMMON_V10_V32
:
4059 bfd_default_set_arch_mach (abfd
, bfd_arch_cris
, bfd_mach_cris_v10_v32
);
4063 /* Since we don't recognize them, we obviously can't support them
4064 with this code; we'd have to require that all future handling
4065 would be optional. */
4066 bfd_set_error (bfd_error_wrong_format
);
4073 /* Display the flags field. */
4076 cris_elf_print_private_bfd_data (bfd
*abfd
, void * ptr
)
4078 FILE *file
= (FILE *) ptr
;
4080 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4082 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4084 fprintf (file
, _("private flags = %lx:"), elf_elfheader (abfd
)->e_flags
);
4086 if (elf_elfheader (abfd
)->e_flags
& EF_CRIS_UNDERSCORE
)
4087 fprintf (file
, _(" [symbols have a _ prefix]"));
4088 if ((elf_elfheader (abfd
)->e_flags
& EF_CRIS_VARIANT_MASK
)
4089 == EF_CRIS_VARIANT_COMMON_V10_V32
)
4090 fprintf (file
, _(" [v10 and v32]"));
4091 if ((elf_elfheader (abfd
)->e_flags
& EF_CRIS_VARIANT_MASK
)
4092 == EF_CRIS_VARIANT_V32
)
4093 fprintf (file
, _(" [v32]"));
4099 /* Don't mix files with and without a leading underscore. */
4102 cris_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
4104 bfd
*obfd
= info
->output_bfd
;
4107 if (! _bfd_generic_verify_endian_match (ibfd
, info
))
4110 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4111 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4114 imach
= bfd_get_mach (ibfd
);
4116 if (! elf_flags_init (obfd
))
4118 /* This happens when ld starts out with a 'blank' output file. */
4119 elf_flags_init (obfd
) = TRUE
;
4121 /* We ignore the linker-set mach, and instead set it according to
4122 the first input file. This would also happen if we could
4123 somehow filter out the OUTPUT_ARCH () setting from elf.sc.
4124 This allows us to keep the same linker config across
4125 cris(v0..v10) and crisv32. The drawback is that we can't force
4126 the output type, which might be a sane thing to do for a
4127 v10+v32 compatibility object. */
4128 if (! bfd_set_arch_mach (obfd
, bfd_arch_cris
, imach
))
4132 if (bfd_get_symbol_leading_char (ibfd
)
4133 != bfd_get_symbol_leading_char (obfd
))
4136 (bfd_get_symbol_leading_char (ibfd
) == '_'
4137 ? _("%B: uses _-prefixed symbols, but writing file with non-prefixed symbols")
4138 : _("%B: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
4140 bfd_set_error (bfd_error_bad_value
);
4144 omach
= bfd_get_mach (obfd
);
4148 /* We can get an incompatible combination only if either is
4149 bfd_mach_cris_v32, and the other one isn't compatible. */
4150 if ((imach
== bfd_mach_cris_v32
4151 && omach
!= bfd_mach_cris_v10_v32
)
4152 || (omach
== bfd_mach_cris_v32
4153 && imach
!= bfd_mach_cris_v10_v32
))
4156 ((imach
== bfd_mach_cris_v32
)
4157 ? _("%B contains CRIS v32 code, incompatible"
4158 " with previous objects")
4159 : _("%B contains non-CRIS-v32 code, incompatible"
4160 " with previous objects"),
4162 bfd_set_error (bfd_error_bad_value
);
4166 /* We don't have to check the case where the input is compatible
4167 with v10 and v32, because the output is already known to be set
4168 to the other (compatible) mach. */
4169 if (omach
== bfd_mach_cris_v10_v32
4170 && ! bfd_set_arch_mach (obfd
, bfd_arch_cris
, imach
))
4177 /* Do side-effects of e_flags copying to obfd. */
4180 cris_elf_copy_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
4182 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4183 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4186 /* Call the base function. */
4187 if (!_bfd_elf_copy_private_bfd_data (ibfd
, obfd
))
4190 /* Do what we really came here for. */
4191 return bfd_set_arch_mach (obfd
, bfd_arch_cris
, bfd_get_mach (ibfd
));
4194 static enum elf_reloc_type_class
4195 elf_cris_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4196 const asection
*rel_sec ATTRIBUTE_UNUSED
,
4197 const Elf_Internal_Rela
*rela
)
4199 enum elf_cris_reloc_type r_type
= ELF32_R_TYPE (rela
->r_info
);
4202 case R_CRIS_RELATIVE
:
4203 return reloc_class_relative
;
4204 case R_CRIS_JUMP_SLOT
:
4205 return reloc_class_plt
;
4207 return reloc_class_copy
;
4209 return reloc_class_normal
;
4213 /* The elf_backend_got_elt_size worker. For one symbol, we can have up to
4214 two GOT entries from three types with two different sizes. We handle
4215 it as a single entry, so we can use the regular offset-calculation
4219 elf_cris_got_elt_size (bfd
*abfd ATTRIBUTE_UNUSED
,
4220 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4221 struct elf_link_hash_entry
*hr
,
4223 unsigned long symndx
)
4225 struct elf_link_hash_entry
*h
= (struct elf_link_hash_entry
*) hr
;
4228 /* We may have one regular GOT entry or up to two TLS GOT
4232 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4233 bfd_signed_vma
*local_got_refcounts
= elf_local_got_refcounts (ibfd
);
4235 BFD_ASSERT (local_got_refcounts
!= NULL
);
4237 if (local_got_refcounts
[LGOT_REG_NDX (symndx
)] > 0)
4239 /* We can't have a variable referred to both as a regular
4240 variable and through TLS relocs. */
4241 BFD_ASSERT (local_got_refcounts
[LGOT_DTP_NDX (symndx
)] == 0
4242 && local_got_refcounts
[LGOT_TPREL_NDX (symndx
)] == 0);
4246 if (local_got_refcounts
[LGOT_DTP_NDX (symndx
)] > 0)
4249 if (local_got_refcounts
[LGOT_TPREL_NDX (symndx
)] > 0)
4254 struct elf_cris_link_hash_entry
*hh
= elf_cris_hash_entry (h
);
4255 if (hh
->reg_got_refcount
> 0)
4257 /* The actual error-on-input is emitted elsewhere. */
4258 BFD_ASSERT (hh
->dtp_refcount
== 0 && hh
->tprel_refcount
== 0);
4262 if (hh
->dtp_refcount
> 0)
4265 if (hh
->tprel_refcount
> 0)
4269 /* We're only called when h->got.refcount is non-zero, so we must
4270 have a non-zero size. */
4271 BFD_ASSERT (eltsiz
!= 0);
4275 #define ELF_ARCH bfd_arch_cris
4276 #define ELF_TARGET_ID CRIS_ELF_DATA
4277 #define ELF_MACHINE_CODE EM_CRIS
4278 #define ELF_MAXPAGESIZE 0x2000
4280 #define TARGET_LITTLE_SYM cris_elf32_vec
4281 #define TARGET_LITTLE_NAME "elf32-cris"
4282 #define elf_symbol_leading_char 0
4284 #define elf_info_to_howto_rel NULL
4285 #define elf_info_to_howto cris_info_to_howto_rela
4286 #define elf_backend_relocate_section cris_elf_relocate_section
4287 #define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
4288 #define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
4289 #define elf_backend_plt_sym_val cris_elf_plt_sym_val
4290 #define elf_backend_check_relocs cris_elf_check_relocs
4291 #define elf_backend_grok_prstatus cris_elf_grok_prstatus
4292 #define elf_backend_grok_psinfo cris_elf_grok_psinfo
4294 #define elf_backend_can_gc_sections 1
4295 #define elf_backend_can_refcount 1
4297 #define elf_backend_object_p cris_elf_object_p
4298 #define elf_backend_final_write_processing \
4299 cris_elf_final_write_processing
4300 #define bfd_elf32_bfd_print_private_bfd_data \
4301 cris_elf_print_private_bfd_data
4302 #define bfd_elf32_bfd_merge_private_bfd_data \
4303 cris_elf_merge_private_bfd_data
4304 #define bfd_elf32_bfd_copy_private_bfd_data \
4305 cris_elf_copy_private_bfd_data
4307 #define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
4308 #define bfd_elf32_bfd_reloc_name_lookup cris_reloc_name_lookup
4310 #define bfd_elf32_bfd_link_hash_table_create \
4311 elf_cris_link_hash_table_create
4312 #define elf_backend_adjust_dynamic_symbol \
4313 elf_cris_adjust_dynamic_symbol
4314 #define elf_backend_copy_indirect_symbol \
4315 elf_cris_copy_indirect_symbol
4316 #define elf_backend_size_dynamic_sections \
4317 elf_cris_size_dynamic_sections
4318 #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4319 #define elf_backend_finish_dynamic_symbol \
4320 elf_cris_finish_dynamic_symbol
4321 #define elf_backend_finish_dynamic_sections \
4322 elf_cris_finish_dynamic_sections
4323 #define elf_backend_create_dynamic_sections \
4324 _bfd_elf_create_dynamic_sections
4325 #define bfd_elf32_bfd_final_link \
4326 bfd_elf_gc_common_final_link
4327 #define elf_backend_hide_symbol elf_cris_hide_symbol
4328 #define elf_backend_reloc_type_class elf_cris_reloc_type_class
4330 #define elf_backend_want_got_plt 1
4331 #define elf_backend_plt_readonly 1
4332 #define elf_backend_want_plt_sym 0
4333 #define elf_backend_got_header_size 12
4334 #define elf_backend_got_elt_size elf_cris_got_elt_size
4335 #define elf_backend_dtrel_excludes_plt 1
4336 #define elf_backend_want_dynrelro 1
4338 /* Later, we my want to optimize RELA entries into REL entries for dynamic
4339 linking and libraries (if it's a win of any significance). Until then,
4340 take the easy route. */
4341 #define elf_backend_may_use_rel_p 0
4342 #define elf_backend_may_use_rela_p 1
4343 #define elf_backend_rela_normal 1
4345 #include "elf32-target.h"
4347 #undef TARGET_LITTLE_SYM
4348 #undef TARGET_LITTLE_NAME
4349 #undef elf_symbol_leading_char
4351 #define TARGET_LITTLE_SYM cris_elf32_us_vec
4352 #define TARGET_LITTLE_NAME "elf32-us-cris"
4353 #define elf_symbol_leading_char '_'
4355 #define elf32_bed elf32_us_cris_bed
4357 #include "elf32-target.h"