1 /* CRIS-specific support for 32-bit ELF.
2 Copyright 2000, 2001, 2002 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
29 /* Forward declarations. */
30 static reloc_howto_type * cris_reloc_type_lookup
31 PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
33 static void cris_info_to_howto_rela
34 PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *));
36 static boolean cris_elf_grok_prstatus
37 PARAMS ((bfd *abfd, Elf_Internal_Note *note));
39 static boolean cris_elf_grok_psinfo
40 PARAMS ((bfd *abfd, Elf_Internal_Note *note));
42 static boolean cris_elf_relocate_section
43 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
44 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
46 static bfd_reloc_status_type cris_final_link_relocate
47 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
48 Elf_Internal_Rela *, bfd_vma));
50 static boolean cris_elf_gc_sweep_hook
51 PARAMS ((bfd *, struct bfd_link_info *, asection *,
52 const Elf_Internal_Rela *));
54 static asection * cris_elf_gc_mark_hook
55 PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *,
56 struct elf_link_hash_entry *, Elf_Internal_Sym *));
58 static boolean cris_elf_object_p PARAMS ((bfd *));
60 static void cris_elf_final_write_processing PARAMS ((bfd *, boolean));
62 static boolean cris_elf_print_private_bfd_data PARAMS ((bfd *, PTR));
64 static boolean cris_elf_merge_private_bfd_data PARAMS ((bfd *, bfd *));
66 struct elf_cris_link_hash_entry;
67 static boolean elf_cris_discard_excess_dso_dynamics
68 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
69 static boolean elf_cris_discard_excess_program_dynamics
70 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
71 static boolean elf_cris_adjust_gotplt_to_got
72 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
73 static boolean elf_cris_try_fold_plt_to_got
74 PARAMS ((struct elf_cris_link_hash_entry *, PTR));
75 static struct bfd_hash_entry *elf_cris_link_hash_newfunc
76 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
77 static struct bfd_link_hash_table *elf_cris_link_hash_table_create
79 static boolean elf_cris_adjust_dynamic_symbol
80 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
81 static boolean cris_elf_check_relocs
82 PARAMS ((bfd *, struct bfd_link_info *, asection *,
83 const Elf_Internal_Rela *));
85 static boolean elf_cris_size_dynamic_sections
86 PARAMS ((bfd *, struct bfd_link_info *));
87 static boolean elf_cris_finish_dynamic_symbol
88 PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *,
90 static boolean elf_cris_finish_dynamic_sections
91 PARAMS ((bfd *, struct bfd_link_info *));
92 static void elf_cris_hide_symbol
93 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, boolean));
94 static enum elf_reloc_type_class elf_cris_reloc_type_class
95 PARAMS ((const Elf_Internal_Rela *));
97 static reloc_howto_type cris_elf_howto_table [] =
99 /* This reloc does nothing. */
100 HOWTO (R_CRIS_NONE, /* type */
102 2, /* size (0 = byte, 1 = short, 2 = long) */
104 false, /* pc_relative */
106 complain_overflow_bitfield, /* complain_on_overflow */
107 bfd_elf_generic_reloc, /* special_function */
108 "R_CRIS_NONE", /* name */
109 false, /* partial_inplace */
112 false), /* pcrel_offset */
114 /* An 8 bit absolute relocation. */
115 HOWTO (R_CRIS_8, /* type */
117 0, /* size (0 = byte, 1 = short, 2 = long) */
119 false, /* pc_relative */
121 complain_overflow_bitfield, /* complain_on_overflow */
122 bfd_elf_generic_reloc, /* special_function */
123 "R_CRIS_8", /* name */
124 false, /* partial_inplace */
125 0x0000, /* src_mask */
126 0x00ff, /* dst_mask */
127 false), /* pcrel_offset */
129 /* A 16 bit absolute relocation. */
130 HOWTO (R_CRIS_16, /* type */
132 1, /* size (0 = byte, 1 = short, 2 = long) */
134 false, /* pc_relative */
136 complain_overflow_bitfield, /* complain_on_overflow */
137 bfd_elf_generic_reloc, /* special_function */
138 "R_CRIS_16", /* name */
139 false, /* partial_inplace */
140 0x00000000, /* src_mask */
141 0x0000ffff, /* dst_mask */
142 false), /* pcrel_offset */
144 /* A 32 bit absolute relocation. */
145 HOWTO (R_CRIS_32, /* type */
147 2, /* size (0 = byte, 1 = short, 2 = long) */
149 false, /* pc_relative */
151 complain_overflow_bitfield, /* complain_on_overflow */
152 bfd_elf_generic_reloc, /* special_function */
153 "R_CRIS_32", /* name */
154 false, /* partial_inplace */
155 0x00000000, /* src_mask */
156 0xffffffff, /* dst_mask */
157 false), /* pcrel_offset */
159 /* An 8 bit PC-relative relocation. */
160 HOWTO (R_CRIS_8_PCREL, /* type */
162 0, /* size (0 = byte, 1 = short, 2 = long) */
164 true, /* pc_relative */
166 complain_overflow_bitfield, /* complain_on_overflow */
167 bfd_elf_generic_reloc, /* special_function */
168 "R_CRIS_8_PCREL", /* name */
169 false, /* partial_inplace */
170 0x0000, /* src_mask */
171 0x00ff, /* dst_mask */
172 true), /* pcrel_offset */
174 /* A 16 bit PC-relative relocation. */
175 HOWTO (R_CRIS_16_PCREL, /* type */
177 1, /* size (0 = byte, 1 = short, 2 = long) */
179 true, /* pc_relative */
181 complain_overflow_bitfield, /* complain_on_overflow */
182 bfd_elf_generic_reloc, /* special_function */
183 "R_CRIS_16", /* name */
184 false, /* partial_inplace */
185 0x00000000, /* src_mask */
186 0x0000ffff, /* dst_mask */
187 true), /* pcrel_offset */
189 /* A 32 bit PC-relative relocation. */
190 HOWTO (R_CRIS_32_PCREL, /* type */
192 2, /* size (0 = byte, 1 = short, 2 = long) */
194 true, /* pc_relative */
196 complain_overflow_bitfield, /* complain_on_overflow */
197 bfd_elf_generic_reloc, /* special_function */
198 "R_CRIS_32", /* name */
199 false, /* partial_inplace */
200 0x00000000, /* src_mask */
201 0xffffffff, /* dst_mask */
202 true), /* pcrel_offset */
204 /* GNU extension to record C++ vtable hierarchy. */
205 HOWTO (R_CRIS_GNU_VTINHERIT, /* type */
207 2, /* size (0 = byte, 1 = short, 2 = long) */
209 false, /* pc_relative */
211 complain_overflow_dont, /* complain_on_overflow */
212 NULL, /* special_function */
213 "R_CRIS_GNU_VTINHERIT", /* name */
214 false, /* partial_inplace */
217 false), /* pcrel_offset */
219 /* GNU extension to record C++ vtable member usage. */
220 HOWTO (R_CRIS_GNU_VTENTRY, /* type */
222 2, /* size (0 = byte, 1 = short, 2 = long) */
224 false, /* pc_relative */
226 complain_overflow_dont, /* complain_on_overflow */
227 _bfd_elf_rel_vtable_reloc_fn, /* special_function */
228 "R_CRIS_GNU_VTENTRY", /* name */
229 false, /* partial_inplace */
232 false), /* pcrel_offset */
234 /* This is used only by the dynamic linker. The symbol should exist
235 both in the object being run and in some shared library. The
236 dynamic linker copies the data addressed by the symbol from the
237 shared library into the object, because the object being
238 run has to have the data at some particular address. */
239 HOWTO (R_CRIS_COPY, /* type */
241 2, /* size (0 = byte, 1 = short, 2 = long) */
243 false, /* pc_relative */
245 complain_overflow_bitfield, /* complain_on_overflow */
246 bfd_elf_generic_reloc, /* special_function */
247 "R_CRIS_COPY", /* name */
248 false, /* partial_inplace */
251 false), /* pcrel_offset */
253 /* Like R_CRIS_32, but used when setting global offset table entries. */
254 HOWTO (R_CRIS_GLOB_DAT, /* type */
256 2, /* size (0 = byte, 1 = short, 2 = long) */
258 false, /* pc_relative */
260 complain_overflow_bitfield, /* complain_on_overflow */
261 bfd_elf_generic_reloc, /* special_function */
262 "R_CRIS_GLOB_DAT", /* name */
263 false, /* partial_inplace */
265 0xffffffff, /* dst_mask */
266 false), /* pcrel_offset */
268 /* Marks a procedure linkage table entry for a symbol. */
269 HOWTO (R_CRIS_JUMP_SLOT, /* type */
271 2, /* size (0 = byte, 1 = short, 2 = long) */
273 false, /* pc_relative */
275 complain_overflow_bitfield, /* complain_on_overflow */
276 bfd_elf_generic_reloc, /* special_function */
277 "R_CRIS_JUMP_SLOT", /* name */
278 false, /* partial_inplace */
281 false), /* pcrel_offset */
283 /* Used only by the dynamic linker. When the object is run, this
284 longword is set to the load address of the object, plus the
286 HOWTO (R_CRIS_RELATIVE, /* type */
288 2, /* size (0 = byte, 1 = short, 2 = long) */
290 false, /* pc_relative */
292 complain_overflow_bitfield, /* complain_on_overflow */
293 bfd_elf_generic_reloc, /* special_function */
294 "R_CRIS_RELATIVE", /* name */
295 false, /* partial_inplace */
297 0xffffffff, /* dst_mask */
298 false), /* pcrel_offset */
300 /* Like R_CRIS_32, but referring to the GOT table entry for the symbol. */
301 HOWTO (R_CRIS_16_GOT, /* type */
303 1, /* size (0 = byte, 1 = short, 2 = long) */
305 false, /* pc_relative */
307 complain_overflow_bitfield, /* complain_on_overflow */
308 bfd_elf_generic_reloc, /* special_function */
309 "R_CRIS_16_GOT", /* name */
310 false, /* partial_inplace */
312 0xffff, /* dst_mask */
313 false), /* pcrel_offset */
315 HOWTO (R_CRIS_32_GOT, /* type */
317 2, /* size (0 = byte, 1 = short, 2 = long) */
319 false, /* pc_relative */
321 complain_overflow_bitfield, /* complain_on_overflow */
322 bfd_elf_generic_reloc, /* special_function */
323 "R_CRIS_32_GOT", /* name */
324 false, /* partial_inplace */
326 0xffffffff, /* dst_mask */
327 false), /* pcrel_offset */
329 /* Like R_CRIS_32_GOT, but referring to (and requesting a) PLT part of
330 the GOT table for the symbol. */
331 HOWTO (R_CRIS_16_GOTPLT, /* type */
333 1, /* size (0 = byte, 1 = short, 2 = long) */
335 false, /* pc_relative */
337 complain_overflow_bitfield, /* complain_on_overflow */
338 bfd_elf_generic_reloc, /* special_function */
339 "R_CRIS_16_GOTPLT", /* name */
340 false, /* partial_inplace */
342 0xffff, /* dst_mask */
343 false), /* pcrel_offset */
345 HOWTO (R_CRIS_32_GOTPLT, /* type */
347 2, /* size (0 = byte, 1 = short, 2 = long) */
349 false, /* pc_relative */
351 complain_overflow_bitfield, /* complain_on_overflow */
352 bfd_elf_generic_reloc, /* special_function */
353 "R_CRIS_32_GOTPLT", /* name */
354 false, /* partial_inplace */
356 0xffffffff, /* dst_mask */
357 false), /* pcrel_offset */
359 /* A 32-bit offset from GOT to (local const) symbol: no GOT entry should
361 HOWTO (R_CRIS_32_GOTREL, /* type */
363 2, /* size (0 = byte, 1 = short, 2 = long) */
365 false, /* pc_relative */
367 complain_overflow_bitfield, /* complain_on_overflow */
368 bfd_elf_generic_reloc, /* special_function */
369 "R_CRIS_32_GOTREL", /* name */
370 false, /* partial_inplace */
372 0xffffffff, /* dst_mask */
373 false), /* pcrel_offset */
375 /* A 32-bit offset from GOT to entry for this symbol in PLT and request
376 to create PLT entry for symbol. */
377 HOWTO (R_CRIS_32_PLT_GOTREL, /* type */
379 2, /* size (0 = byte, 1 = short, 2 = long) */
381 false, /* pc_relative */
383 complain_overflow_bitfield, /* complain_on_overflow */
384 bfd_elf_generic_reloc, /* special_function */
385 "R_CRIS_32_PLT_GOTREL", /* name */
386 false, /* partial_inplace */
388 0xffffffff, /* dst_mask */
389 false), /* pcrel_offset */
391 /* A 32-bit offset from PC (location after the relocation) + addend to
392 entry for this symbol in PLT and request to create PLT entry for
394 HOWTO (R_CRIS_32_PLT_PCREL, /* type */
396 2, /* size (0 = byte, 1 = short, 2 = long) */
398 true, /* pc_relative */
400 complain_overflow_bitfield, /* complain_on_overflow */
401 bfd_elf_generic_reloc, /* special_function */
402 "R_CRIS_32_PLT_PCREL", /* name */
403 false, /* partial_inplace */
405 0xffffffff, /* dst_mask */
406 true) /* pcrel_offset */
409 /* Map BFD reloc types to CRIS ELF reloc types. */
411 struct cris_reloc_map
413 bfd_reloc_code_real_type bfd_reloc_val;
414 unsigned int cris_reloc_val;
417 static const struct cris_reloc_map cris_reloc_map [] =
419 { BFD_RELOC_NONE, R_CRIS_NONE },
420 { BFD_RELOC_8, R_CRIS_8 },
421 { BFD_RELOC_16, R_CRIS_16 },
422 { BFD_RELOC_32, R_CRIS_32 },
423 { BFD_RELOC_8_PCREL, R_CRIS_8_PCREL },
424 { BFD_RELOC_16_PCREL, R_CRIS_16_PCREL },
425 { BFD_RELOC_32_PCREL, R_CRIS_32_PCREL },
426 { BFD_RELOC_VTABLE_INHERIT, R_CRIS_GNU_VTINHERIT },
427 { BFD_RELOC_VTABLE_ENTRY, R_CRIS_GNU_VTENTRY },
428 { BFD_RELOC_CRIS_COPY, R_CRIS_COPY },
429 { BFD_RELOC_CRIS_GLOB_DAT, R_CRIS_GLOB_DAT },
430 { BFD_RELOC_CRIS_JUMP_SLOT, R_CRIS_JUMP_SLOT },
431 { BFD_RELOC_CRIS_RELATIVE, R_CRIS_RELATIVE },
432 { BFD_RELOC_CRIS_16_GOT, R_CRIS_16_GOT },
433 { BFD_RELOC_CRIS_32_GOT, R_CRIS_32_GOT },
434 { BFD_RELOC_CRIS_16_GOTPLT, R_CRIS_16_GOTPLT },
435 { BFD_RELOC_CRIS_32_GOTPLT, R_CRIS_32_GOTPLT },
436 { BFD_RELOC_CRIS_32_GOTREL, R_CRIS_32_GOTREL },
437 { BFD_RELOC_CRIS_32_PLT_GOTREL, R_CRIS_32_PLT_GOTREL },
438 { BFD_RELOC_CRIS_32_PLT_PCREL, R_CRIS_32_PLT_PCREL }
441 static reloc_howto_type *
442 cris_reloc_type_lookup (abfd, code)
443 bfd * abfd ATTRIBUTE_UNUSED;
444 bfd_reloc_code_real_type code;
448 for (i = 0; i < sizeof (cris_reloc_map) / sizeof (cris_reloc_map[0]); i++)
449 if (cris_reloc_map [i].bfd_reloc_val == code)
450 return & cris_elf_howto_table [cris_reloc_map[i].cris_reloc_val];
455 /* Set the howto pointer for an CRIS ELF reloc. */
458 cris_info_to_howto_rela (abfd, cache_ptr, dst)
459 bfd * abfd ATTRIBUTE_UNUSED;
461 Elf32_Internal_Rela * dst;
465 r_type = ELF32_R_TYPE (dst->r_info);
466 BFD_ASSERT (r_type < (unsigned int) R_CRIS_max);
467 cache_ptr->howto = & cris_elf_howto_table [r_type];
470 /* Support for core dump NOTE sections. */
473 cris_elf_grok_prstatus (abfd, note)
475 Elf_Internal_Note *note;
480 switch (note->descsz)
485 case 214: /* Linux/CRIS */
487 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
490 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 22);
499 /* Make a ".reg/999" section. */
500 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
501 raw_size, note->descpos + offset);
505 cris_elf_grok_psinfo (abfd, note)
507 Elf_Internal_Note *note;
509 switch (note->descsz)
514 case 124: /* Linux/CRIS elf_prpsinfo */
515 elf_tdata (abfd)->core_program
516 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
517 elf_tdata (abfd)->core_command
518 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
521 /* Note that for some reason, a spurious space is tacked
522 onto the end of the args in some (at least one anyway)
523 implementations, so strip it off if it exists. */
526 char *command = elf_tdata (abfd)->core_command;
527 int n = strlen (command);
529 if (0 < n && command[n - 1] == ' ')
530 command[n - 1] = '\0';
536 /* The name of the dynamic interpreter. This is put in the .interp
539 #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
541 /* The size in bytes of an entry in the procedure linkage table. */
543 #define PLT_ENTRY_SIZE 20
545 /* The first entry in an absolute procedure linkage table looks like this. */
547 static const bfd_byte elf_cris_plt0_entry[PLT_ENTRY_SIZE] =
550 0x7e, 0x7e, /* push mof. */
551 0x7f, 0x0d, /* (dip [pc+]) */
552 0, 0, 0, 0, /* Replaced with address of .got + 4. */
553 0x30, 0x7a, /* move [...],mof */
554 0x7f, 0x0d, /* (dip [pc+]) */
555 0, 0, 0, 0, /* Replaced with address of .got + 8. */
556 0x30, 0x09, /* jump [...] */
559 /* Subsequent entries in an absolute procedure linkage table look like
562 static const bfd_byte elf_cris_plt_entry[PLT_ENTRY_SIZE] =
564 0x7f, 0x0d, /* (dip [pc+]) */
565 0, 0, 0, 0, /* Replaced with address of this symbol in .got. */
566 0x30, 0x09, /* jump [...] */
567 0x3f, 0x7e, /* move [pc+],mof */
568 0, 0, 0, 0, /* Replaced with offset into relocation table. */
569 0x2f, 0xfe, /* add.d [pc+],pc */
571 0xff, 0xff /* Replaced with offset to start of .plt. */
574 /* The first entry in a PIC procedure linkage table looks like this. */
576 static const bfd_byte elf_cris_pic_plt0_entry[PLT_ENTRY_SIZE] =
578 0xfc, 0xe1, 0x7e, 0x7e, /* push mof */
579 0x04, 0x01, 0x30, 0x7a, /* move [r0+4],mof */
580 0x08, 0x01, 0x30, 0x09, /* jump [r0+8] */
581 0, 0, 0, 0, 0, 0, 0, 0, /* Pad out to 20 bytes. */
584 /* Subsequent entries in a PIC procedure linkage table look like this. */
586 static const bfd_byte elf_cris_pic_plt_entry[PLT_ENTRY_SIZE] =
588 0x6f, 0x0d, /* (bdap [pc+].d,r0) */
589 0, 0, 0, 0, /* Replaced with offset of this symbol in .got. */
590 0x30, 0x09, /* jump [...] */
591 0x3f, 0x7e, /* move [pc+],mof */
592 0, 0, 0, 0, /* Replaced with offset into relocation table. */
593 0x2f, 0xfe, /* add.d [pc+],pc */
594 0xec, 0xff, /* Replaced with offset to start of .plt. */
598 /* We copy elf32-m68k.c and elf32-i386.c for the basic linker hash bits
599 (and most other PIC/shlib stuff). Check that we don't drift away
602 The CRIS linker, like the m68k and i386 linkers (and probably the rest
603 too) needs to keep track of the number of relocs that it decides to
604 copy in check_relocs for each symbol. This is so that it can discard
605 PC relative relocs if it doesn't need them when linking with
606 -Bsymbolic. We store the information in a field extending the regular
607 ELF linker hash table. */
609 /* This structure keeps track of the number of PC relative relocs we have
610 copied for a given symbol. */
612 struct elf_cris_pcrel_relocs_copied
615 struct elf_cris_pcrel_relocs_copied *next;
616 /* A section in dynobj. */
618 /* Number of relocs copied in this section. */
622 /* CRIS ELF linker hash entry. */
624 struct elf_cris_link_hash_entry
626 struct elf_link_hash_entry root;
628 /* Number of PC relative relocs copied for this symbol. */
629 struct elf_cris_pcrel_relocs_copied *pcrel_relocs_copied;
631 /* The GOTPLT references are CRIS-specific; the goal is to avoid having
632 both a general GOT and a PLT-specific GOT entry for the same symbol,
633 when it is referenced both as a function and as a function pointer.
635 Number of GOTPLT references for a function. */
636 bfd_signed_vma gotplt_refcount;
638 /* Actual GOTPLT index for this symbol, if applicable, or zero if not
639 (zero is never used as an index). FIXME: We should be able to fold
640 this with gotplt_refcount in a union, like the got and plt unions in
641 elf_link_hash_entry. */
642 bfd_size_type gotplt_offset;
645 /* CRIS ELF linker hash table. */
647 struct elf_cris_link_hash_table
649 struct elf_link_hash_table root;
651 /* We can't use the PLT offset and calculate to get the GOTPLT offset,
652 since we try and avoid creating GOTPLT:s when there's already a GOT.
653 Instead, we keep and update the next available index here. */
654 bfd_size_type next_gotplt_entry;
657 /* Traverse a CRIS ELF linker hash table. */
659 #define elf_cris_link_hash_traverse(table, func, info) \
660 (elf_link_hash_traverse \
662 (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
665 /* Get the CRIS ELF linker hash table from a link_info structure. */
667 #define elf_cris_hash_table(p) \
668 ((struct elf_cris_link_hash_table *) (p)->hash)
670 /* Create an entry in a CRIS ELF linker hash table. */
672 static struct bfd_hash_entry *
673 elf_cris_link_hash_newfunc (entry, table, string)
674 struct bfd_hash_entry *entry;
675 struct bfd_hash_table *table;
678 struct elf_cris_link_hash_entry *ret =
679 (struct elf_cris_link_hash_entry *) entry;
681 /* Allocate the structure if it has not already been allocated by a
683 if (ret == (struct elf_cris_link_hash_entry *) NULL)
684 ret = ((struct elf_cris_link_hash_entry *)
685 bfd_hash_allocate (table,
686 sizeof (struct elf_cris_link_hash_entry)));
687 if (ret == (struct elf_cris_link_hash_entry *) NULL)
688 return (struct bfd_hash_entry *) ret;
690 /* Call the allocation method of the superclass. */
691 ret = ((struct elf_cris_link_hash_entry *)
692 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
694 if (ret != (struct elf_cris_link_hash_entry *) NULL)
696 ret->pcrel_relocs_copied = NULL;
697 ret->gotplt_refcount = 0;
698 ret->gotplt_offset = 0;
701 return (struct bfd_hash_entry *) ret;
704 /* Create a CRIS ELF linker hash table. */
706 static struct bfd_link_hash_table *
707 elf_cris_link_hash_table_create (abfd)
710 struct elf_cris_link_hash_table *ret;
711 bfd_size_type amt = sizeof (struct elf_cris_link_hash_table);
713 ret = ((struct elf_cris_link_hash_table *) bfd_malloc (amt));
714 if (ret == (struct elf_cris_link_hash_table *) NULL)
717 if (! _bfd_elf_link_hash_table_init (&ret->root, abfd,
718 elf_cris_link_hash_newfunc))
724 /* Initialize to skip over the first three entries in the gotplt; they
725 are used for run-time symbol evaluation. */
726 ret->next_gotplt_entry = 12;
728 return &ret->root.root;
731 /* Perform a single relocation. By default we use the standard BFD
732 routines, with a few tweaks. */
734 static bfd_reloc_status_type
735 cris_final_link_relocate (howto, input_bfd, input_section, contents, rel,
737 reloc_howto_type * howto;
739 asection * input_section;
741 Elf_Internal_Rela * rel;
744 bfd_reloc_status_type r;
746 /* PC-relative relocations are relative to the position *after*
747 the reloc. Note that for R_CRIS_8_PCREL the adjustment is
748 not a single byte, since PC must be 16-bit-aligned. */
749 switch (ELF32_R_TYPE (rel->r_info))
751 /* Check that the 16-bit GOT relocs are positive. */
752 case R_CRIS_16_GOTPLT:
754 if ((bfd_signed_vma) relocation < 0)
755 return bfd_reloc_overflow;
758 case R_CRIS_32_PLT_PCREL:
759 case R_CRIS_32_PCREL:
763 case R_CRIS_16_PCREL:
771 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
772 contents, rel->r_offset,
773 relocation, rel->r_addend);
777 /* Relocate an CRIS ELF section. See elf32-fr30.c, from where this was
778 copied, for further comments. */
781 cris_elf_relocate_section (output_bfd, info, input_bfd, input_section,
782 contents, relocs, local_syms, local_sections)
783 bfd * output_bfd ATTRIBUTE_UNUSED;
784 struct bfd_link_info * info;
786 asection * input_section;
788 Elf_Internal_Rela * relocs;
789 Elf_Internal_Sym * local_syms;
790 asection ** local_sections;
793 Elf_Internal_Shdr * symtab_hdr;
794 struct elf_link_hash_entry ** sym_hashes;
795 bfd_vma *local_got_offsets;
799 Elf_Internal_Rela * rel;
800 Elf_Internal_Rela * relend;
802 dynobj = elf_hash_table (info)->dynobj;
803 local_got_offsets = elf_local_got_offsets (input_bfd);
804 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
805 sym_hashes = elf_sym_hashes (input_bfd);
806 relend = relocs + input_section->reloc_count;
808 /* It seems this can happen with erroneous or unsupported input (mixing
809 a.out and elf in an archive, for example.) */
810 if (sym_hashes == NULL)
819 splt = bfd_get_section_by_name (dynobj, ".plt");
820 sgot = bfd_get_section_by_name (dynobj, ".got");
823 for (rel = relocs; rel < relend; rel ++)
825 reloc_howto_type * howto;
826 unsigned long r_symndx;
827 Elf_Internal_Sym * sym;
829 struct elf_link_hash_entry * h;
831 bfd_reloc_status_type r;
832 const char * symname = NULL;
835 r_type = ELF32_R_TYPE (rel->r_info);
837 if ( r_type == R_CRIS_GNU_VTINHERIT
838 || r_type == R_CRIS_GNU_VTENTRY)
841 r_symndx = ELF32_R_SYM (rel->r_info);
843 if (info->relocateable)
845 /* This is a relocateable link. We don't have to change
846 anything, unless the reloc is against a section symbol,
847 in which case we have to adjust according to where the
848 section symbol winds up in the output section. */
849 if (r_symndx < symtab_hdr->sh_info)
851 sym = local_syms + r_symndx;
853 if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
855 sec = local_sections [r_symndx];
856 rel->r_addend += sec->output_offset + sym->st_value;
863 /* This is a final link. */
864 howto = cris_elf_howto_table + r_type;
869 if (r_symndx < symtab_hdr->sh_info)
871 sym = local_syms + r_symndx;
872 sec = local_sections [r_symndx];
873 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel);
875 symname = (bfd_elf_string_from_elf_section
876 (input_bfd, symtab_hdr->sh_link, sym->st_name));
878 symname = bfd_section_name (input_bfd, sec);
882 h = sym_hashes [r_symndx - symtab_hdr->sh_info];
884 while (h->root.type == bfd_link_hash_indirect
885 || h->root.type == bfd_link_hash_warning)
886 h = (struct elf_link_hash_entry *) h->root.u.i.link;
888 symname = h->root.root.string;
890 if (h->root.type == bfd_link_hash_defined
891 || h->root.type == bfd_link_hash_defweak)
893 sec = h->root.u.def.section;
895 /* Perhaps we should detect the cases that
896 sec->output_section is expected to be NULL like i386 and
897 m68k, but apparently (and according to elfxx-ia64.c) all
898 valid cases are where the symbol is defined in a shared
899 object which we link dynamically against. This includes
900 PLT relocs for which we've created a PLT entry and other
901 relocs for which we're prepared to create dynamic
904 For now, new situations cause us to just err when
905 sec->output_offset is NULL but the object with the symbol
906 is *not* dynamically linked against. Thus this will
907 automatically remind us so we can see if there are other
908 valid cases we need to revisit. */
909 if ((sec->output_section == NULL
910 && (sec->owner->flags & DYNAMIC) != 0)
912 /* Here follow the cases where the relocation value must
913 be zero (or when further handling is simplified when
914 zero). I can't claim to understand the various
915 conditions and they weren't described in the files
916 where I copied them from (elf32-m68k.c and
917 elf32-i386.c), but let's mention examples of where
918 they happen. FIXME: Perhaps define and use a
919 dynamic_symbol_p function like ia64.
921 - When creating a shared library, we can have an
922 ordinary relocation for a symbol defined in a shared
923 library (perhaps the one we create). We then make
924 the relocation value zero, as the value seen now will
925 be added into the relocation addend in this shared
926 library, but must be handled only at dynamic-link
927 time. FIXME: Not sure this example covers the
928 h->elf_link_hash_flags test, though it's there in
931 && ((! info->symbolic && h->dynindx != -1)
932 || (h->elf_link_hash_flags
933 & ELF_LINK_HASH_DEF_REGULAR) == 0)
934 && (input_section->flags & SEC_ALLOC) != 0
935 && (r_type == R_CRIS_8
936 || r_type == R_CRIS_16
937 || r_type == R_CRIS_32
938 || r_type == R_CRIS_8_PCREL
939 || r_type == R_CRIS_16_PCREL
940 || r_type == R_CRIS_32_PCREL)))
942 else if (sec->output_section != NULL)
943 relocation = (h->root.u.def.value
944 + sec->output_section->vma
945 + sec->output_offset);
948 (*_bfd_error_handler)
949 (_("%s: unresolvable relocation %s against symbol `%s' from %s section"),
950 bfd_archive_filename (input_bfd),
951 cris_elf_howto_table[r_type].name,
953 bfd_get_section_name (input_bfd, input_section));
954 bfd_set_error (bfd_error_bad_value);
958 else if (h->root.type == bfd_link_hash_undefweak)
960 else if (info->shared
961 && (!info->symbolic || info->allow_shlib_undefined)
962 && !info->no_undefined
963 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
967 if (!(info->callbacks->undefined_symbol
968 (info, symname, input_bfd,
969 input_section, rel->r_offset,
970 (!info->shared || info->no_undefined
971 || ELF_ST_VISIBILITY (h->other)))))
979 case R_CRIS_16_GOTPLT:
980 case R_CRIS_32_GOTPLT:
981 /* This is like the case for R_CRIS_32_GOT and R_CRIS_16_GOT,
982 but we require a PLT, and the PLT handling will take care of
983 filling in the PLT-specific GOT entry. For the GOT offset,
984 calculate it as we do when filling it in for the .got.plt
985 section. If we don't have a PLT, punt to GOT handling. */
987 && ((struct elf_cris_link_hash_entry *) h)->gotplt_offset != 0)
990 = bfd_get_section_by_name (dynobj, ".got.plt");
993 BFD_ASSERT (h->dynindx != -1);
994 BFD_ASSERT (sgotplt != NULL);
997 = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
999 relocation = got_offset;
1003 /* We didn't make a PLT entry for this symbol. Maybe everything is
1004 folded into the GOT. Other than folding, this happens when
1005 statically linking PIC code, or when using -Bsymbolic. Check
1006 that we instead have a GOT entry as done for us by
1007 elf_cris_adjust_dynamic_symbol, and drop through into the
1008 ordinary GOT cases. */
1009 if (h != NULL && h->got.offset == (bfd_vma) -1)
1011 (*_bfd_error_handler)
1012 (_("%s: No PLT nor GOT for relocation %s against symbol `%s' from %s section"),
1013 bfd_archive_filename (input_bfd),
1014 cris_elf_howto_table[r_type].name,
1015 symname[0] != '\0' ? symname : _("[whose name is lost]"),
1016 bfd_get_section_name (input_bfd, input_section));
1018 /* FIXME: Perhaps blaming input is not the right thing to
1019 do; this is probably an internal error. But it is true
1020 that we didn't like that particular input. */
1021 bfd_set_error (bfd_error_bad_value);
1026 /* The size of the actual relocation is not used here; we only
1027 fill in the GOT table here. */
1033 /* Note that despite using RELA relocations, the .got contents
1034 is always filled in with the link-relative relocation
1035 value; the addend. */
1039 off = h->got.offset;
1040 BFD_ASSERT (off != (bfd_vma) -1);
1042 if (!elf_hash_table (info)->dynamic_sections_created
1043 || (! info->shared && h->dynindx == -1)
1045 && (info->symbolic || h->dynindx == -1)
1046 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
1048 /* This wasn't checked above for ! info->shared, but
1049 must hold there if we get here; the symbol must not
1050 be used in, or defined by a DSO. (Note that
1051 checking for ELF_LINK_HASH_DEF_REGULAR doesn't
1052 catch all cases.) */
1053 BFD_ASSERT (info->shared
1054 || (h->elf_link_hash_flags
1055 & (ELF_LINK_HASH_REF_DYNAMIC
1056 | ELF_LINK_HASH_DEF_DYNAMIC)) == 0);
1058 /* This is actually a static link, or it is a
1059 -Bsymbolic link and the symbol is defined
1060 locally, or the symbol was forced to be local
1061 because of a version file, or we're not creating a
1062 dynamic object and the symbol isn't referred to by
1063 a dynamic object. We must initialize
1064 this entry in the global offset table. Since
1065 the offset must always be a multiple of 4, we
1066 use the least significant bit to record whether
1067 we have initialized it already.
1069 When doing a dynamic link, we create a .rela.got
1070 relocation entry to initialize the value. This
1071 is done in the finish_dynamic_symbol routine. */
1076 bfd_put_32 (output_bfd, relocation,
1077 sgot->contents + off);
1084 BFD_ASSERT (local_got_offsets != NULL
1085 && local_got_offsets[r_symndx] != (bfd_vma) -1);
1087 off = local_got_offsets[r_symndx];
1089 /* The offset must always be a multiple of 4. We use
1090 the least significant bit to record whether we have
1091 already generated the necessary reloc. */
1096 bfd_put_32 (output_bfd, relocation, sgot->contents + off);
1101 Elf_Internal_Rela outrel;
1103 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1104 BFD_ASSERT (srelgot != NULL);
1106 outrel.r_offset = (sgot->output_section->vma
1107 + sgot->output_offset
1109 outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1110 outrel.r_addend = relocation;
1111 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
1112 (((Elf32_External_Rela *)
1114 + srelgot->reloc_count));
1115 ++srelgot->reloc_count;
1118 local_got_offsets[r_symndx] |= 1;
1122 relocation = sgot->output_offset + off;
1123 if (rel->r_addend != 0)
1125 /* We can't do anything for a relocation which is against
1126 a symbol *plus offset*. GOT holds relocations for
1127 symbols. Make this an error; the compiler isn't
1128 allowed to pass us these kinds of things. */
1130 (*_bfd_error_handler)
1131 (_("%s: relocation %s with non-zero addend %d against local symbol from %s section"),
1132 bfd_archive_filename (input_bfd),
1133 cris_elf_howto_table[r_type].name,
1135 bfd_get_section_name (input_bfd, input_section));
1137 (*_bfd_error_handler)
1138 (_("%s: relocation %s with non-zero addend %d against symbol `%s' from %s section"),
1139 bfd_archive_filename (input_bfd),
1140 cris_elf_howto_table[r_type].name,
1142 symname[0] != '\0' ? symname : _("[whose name is lost]"),
1143 bfd_get_section_name (input_bfd, input_section));
1145 bfd_set_error (bfd_error_bad_value);
1151 case R_CRIS_32_GOTREL:
1152 /* This relocation must only be performed against local symbols. */
1155 (*_bfd_error_handler)
1156 (_("%s: relocation %s is not allowed for global symbol: `%s' from %s section"),
1157 bfd_archive_filename (input_bfd),
1158 cris_elf_howto_table[r_type].name,
1160 bfd_get_section_name (input_bfd, input_section));
1161 bfd_set_error (bfd_error_bad_value);
1165 /* This can happen if we get a link error with the input ELF
1166 variant mismatching the output variant. Emit an error so
1167 it's noticed if it happens elsewhere. */
1170 (*_bfd_error_handler)
1171 (_("%s: relocation %s in section %s with no GOT created"),
1172 bfd_archive_filename (input_bfd),
1173 cris_elf_howto_table[r_type].name,
1174 bfd_get_section_name (input_bfd, input_section));
1175 bfd_set_error (bfd_error_bad_value);
1179 /* This relocation is like a PC-relative one, except the
1180 reference point is the location of GOT. Note that
1181 sgot->output_offset is not involved in this calculation. We
1182 always want the start of entire .got section, not the
1183 position after the reserved header. */
1184 relocation -= sgot->output_section->vma;
1187 case R_CRIS_32_PLT_PCREL:
1188 /* Relocation is to the entry for this symbol in the
1189 procedure linkage table. */
1191 /* Resolve a PLT_PCREL reloc against a local symbol directly,
1192 without using the procedure linkage table. */
1196 if (h->plt.offset == (bfd_vma) -1
1199 /* We didn't make a PLT entry for this symbol. This
1200 happens when statically linking PIC code, or when
1201 using -Bsymbolic. */
1205 relocation = (splt->output_section->vma
1206 + splt->output_offset
1210 case R_CRIS_32_PLT_GOTREL:
1211 /* Like R_CRIS_32_PLT_PCREL, but the reference point is the
1212 start of the .got section. See also comment at
1214 relocation -= sgot->output_section->vma;
1216 /* Resolve a PLT_GOTREL reloc against a local symbol directly,
1217 without using the procedure linkage table. */
1221 if (h->plt.offset == (bfd_vma) -1
1224 /* We didn't make a PLT entry for this symbol. This
1225 happens when statically linking PIC code, or when
1226 using -Bsymbolic. */
1230 relocation = (splt->output_section->vma
1231 + splt->output_offset
1233 - sgot->output_section->vma);
1236 case R_CRIS_8_PCREL:
1237 case R_CRIS_16_PCREL:
1238 case R_CRIS_32_PCREL:
1239 /* If the symbol was local, we need no shlib-specific handling. */
1249 && (input_section->flags & SEC_ALLOC) != 0
1250 && ((r_type != R_CRIS_8_PCREL
1251 && r_type != R_CRIS_16_PCREL
1252 && r_type != R_CRIS_32_PCREL)
1254 || (h->elf_link_hash_flags
1255 & ELF_LINK_HASH_DEF_REGULAR) == 0)))
1257 Elf_Internal_Rela outrel;
1258 boolean skip, relocate;
1260 /* When generating a shared object, these relocations
1261 are copied into the output file to be resolved at run
1268 name = (bfd_elf_string_from_elf_section
1270 elf_elfheader (input_bfd)->e_shstrndx,
1271 elf_section_data (input_section)->rel_hdr.sh_name));
1275 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
1276 && strcmp (bfd_get_section_name (input_bfd,
1280 sreloc = bfd_get_section_by_name (dynobj, name);
1282 /* That section should have been created in
1283 cris_elf_check_relocs, but that function will not be
1284 called for objects which fail in
1285 cris_elf_merge_private_bfd_data. */
1288 (*_bfd_error_handler)
1289 (_("%s: Internal inconsistency; no relocation section %s"),
1290 bfd_archive_filename (input_bfd),
1293 bfd_set_error (bfd_error_bad_value);
1302 _bfd_elf_section_offset (output_bfd, info, input_section,
1304 if (outrel.r_offset == (bfd_vma) -1)
1306 else if (outrel.r_offset == (bfd_vma) -2)
1307 skip = true, relocate = true;
1308 outrel.r_offset += (input_section->output_section->vma
1309 + input_section->output_offset);
1312 memset (&outrel, 0, sizeof outrel);
1313 /* h->dynindx may be -1 if the symbol was marked to
1316 && ((! info->symbolic && h->dynindx != -1)
1317 || (h->elf_link_hash_flags
1318 & ELF_LINK_HASH_DEF_REGULAR) == 0))
1320 BFD_ASSERT (h->dynindx != -1);
1321 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1322 outrel.r_addend = relocation + rel->r_addend;
1326 if (r_type == R_CRIS_32)
1329 outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1330 outrel.r_addend = relocation + rel->r_addend;
1337 sec = local_sections[r_symndx];
1340 BFD_ASSERT (h->root.type == bfd_link_hash_defined
1342 == bfd_link_hash_defweak));
1343 sec = h->root.u.def.section;
1345 if (sec != NULL && bfd_is_abs_section (sec))
1347 else if (sec == NULL || sec->owner == NULL)
1349 bfd_set_error (bfd_error_bad_value);
1356 osec = sec->output_section;
1357 indx = elf_section_data (osec)->dynindx;
1358 BFD_ASSERT (indx > 0);
1361 outrel.r_info = ELF32_R_INFO (indx, r_type);
1362 outrel.r_addend = relocation + rel->r_addend;
1366 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
1367 (((Elf32_External_Rela *)
1369 + sreloc->reloc_count));
1370 ++sreloc->reloc_count;
1372 /* This reloc will be computed at runtime, so there's no
1373 need to do anything now, except for R_CRIS_32 relocations
1374 that have been turned into R_CRIS_RELATIVE. */
1382 r = cris_final_link_relocate (howto, input_bfd, input_section,
1383 contents, rel, relocation);
1385 if (r != bfd_reloc_ok)
1387 const char * msg = (const char *) NULL;
1391 case bfd_reloc_overflow:
1392 r = info->callbacks->reloc_overflow
1393 (info, symname, howto->name, (bfd_vma) 0,
1394 input_bfd, input_section, rel->r_offset);
1397 case bfd_reloc_undefined:
1398 r = info->callbacks->undefined_symbol
1399 (info, symname, input_bfd, input_section, rel->r_offset,
1403 case bfd_reloc_outofrange:
1404 msg = _("internal error: out of range error");
1407 case bfd_reloc_notsupported:
1408 msg = _("internal error: unsupported relocation error");
1411 case bfd_reloc_dangerous:
1412 msg = _("internal error: dangerous relocation");
1416 msg = _("internal error: unknown error");
1421 r = info->callbacks->warning
1422 (info, msg, symname, input_bfd, input_section, rel->r_offset);
1432 /* Finish up dynamic symbol handling. We set the contents of various
1433 dynamic sections here. */
1436 elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
1438 struct bfd_link_info *info;
1439 struct elf_link_hash_entry *h;
1440 Elf_Internal_Sym *sym;
1443 int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
1445 dynobj = elf_hash_table (info)->dynobj;
1447 if (h->plt.offset != (bfd_vma) -1)
1455 bfd_vma gotplt_offset
1456 = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
1457 Elf_Internal_Rela rela;
1458 boolean has_gotplt = gotplt_offset != 0;
1460 /* Get the index in the procedure linkage table which
1461 corresponds to this symbol. This is the index of this symbol
1462 in all the symbols for which we are making plt entries. The
1463 first entry in the procedure linkage table is reserved. */
1464 /* We have to count backwards here, and the result is only valid as
1465 an index into .got.plt and its relocations. FIXME: Constants... */
1466 bfd_vma gotplt_index = gotplt_offset/4 - 3;
1468 /* Get the offset into the .got table of the entry that corresponds
1469 to this function. Note that we embed knowledge that "incoming"
1470 .got goes after .got.plt in the output without padding (pointer
1471 aligned). However, that knowledge is present in several other
1472 places too, here and in elflink.h at least. */
1476 : h->got.offset + elf_cris_hash_table(info)->next_gotplt_entry);
1478 /* This symbol has an entry in the procedure linkage table. Set it
1481 BFD_ASSERT (h->dynindx != -1);
1483 splt = bfd_get_section_by_name (dynobj, ".plt");
1484 sgot = bfd_get_section_by_name (dynobj, ".got");
1485 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1486 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
1487 BFD_ASSERT (splt != NULL && sgotplt != NULL
1488 && (! has_gotplt || srela != NULL));
1490 got_base = sgotplt->output_section->vma + sgotplt->output_offset;
1492 /* Fill in the entry in the procedure linkage table. */
1495 memcpy (splt->contents + h->plt.offset, elf_cris_plt_entry,
1498 /* We need to enter the absolute address of the GOT entry here. */
1499 bfd_put_32 (output_bfd, got_base + got_offset,
1500 splt->contents + h->plt.offset + plt_off1);
1504 memcpy (splt->contents + h->plt.offset, elf_cris_pic_plt_entry,
1506 bfd_put_32 (output_bfd, got_offset,
1507 splt->contents + h->plt.offset + plt_off1);
1510 /* Fill in the plt entry and make a relocation, if this is a "real"
1514 /* Fill in the offset into the reloc table. */
1515 bfd_put_32 (output_bfd,
1516 gotplt_index * sizeof (Elf32_External_Rela),
1517 splt->contents + h->plt.offset + plt_off2);
1519 /* Fill in the offset to the first PLT entry, where to "jump". */
1520 bfd_put_32 (output_bfd, - (h->plt.offset + plt_off3 + 4),
1521 splt->contents + h->plt.offset + plt_off3);
1523 /* Fill in the entry in the global offset table with the address of
1524 the relocating stub. */
1525 bfd_put_32 (output_bfd,
1526 (splt->output_section->vma
1527 + splt->output_offset
1530 sgotplt->contents + got_offset);
1532 /* Fill in the entry in the .rela.plt section. */
1533 rela.r_offset = (sgotplt->output_section->vma
1534 + sgotplt->output_offset
1536 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
1538 bfd_elf32_swap_reloca_out (output_bfd, &rela,
1539 ((Elf32_External_Rela *) srela->contents
1543 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1545 /* Mark the symbol as undefined, rather than as defined in
1546 the .plt section. Leave the value alone. */
1547 sym->st_shndx = SHN_UNDEF;
1549 /* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't
1550 know whether resetting the value is significant; if it really
1551 is, rather than a quirk or bug in the sparc port, then I
1552 believe we'd see this elsewhere. */
1553 /* If the symbol is weak, we do need to clear the value.
1554 Otherwise, the PLT entry would provide a definition for
1555 the symbol even if the symbol wasn't defined anywhere,
1556 and so the symbol would never be NULL. */
1557 if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK)
1563 /* We don't emit .got relocs for symbols that aren't in the
1564 dynamic-symbols table for an ordinary program. */
1565 if (h->got.offset != (bfd_vma) -1
1566 && (info->shared || h->dynindx != -1))
1570 Elf_Internal_Rela rela;
1573 /* This symbol has an entry in the global offset table. Set it up. */
1575 sgot = bfd_get_section_by_name (dynobj, ".got");
1576 srela = bfd_get_section_by_name (dynobj, ".rela.got");
1577 BFD_ASSERT (sgot != NULL && srela != NULL);
1579 rela.r_offset = (sgot->output_section->vma
1580 + sgot->output_offset
1581 + (h->got.offset &~ (bfd_vma) 1));
1583 /* If this is a static link, or it is a -Bsymbolic link and the
1584 symbol is defined locally or was forced to be local because
1585 of a version file, we just want to emit a RELATIVE reloc.
1586 The entry in the global offset table will already have been
1587 initialized in the relocate_section function. */
1588 where = sgot->contents + (h->got.offset &~ (bfd_vma) 1);
1589 if (! elf_hash_table (info)->dynamic_sections_created
1591 && (info->symbolic || h->dynindx == -1)
1592 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
1594 rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1595 rela.r_addend = bfd_get_signed_32 (output_bfd, where);
1599 bfd_put_32 (output_bfd, (bfd_vma) 0, where);
1600 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
1604 bfd_elf32_swap_reloca_out (output_bfd, &rela,
1605 ((Elf32_External_Rela *) srela->contents
1606 + srela->reloc_count));
1607 ++srela->reloc_count;
1610 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
1613 Elf_Internal_Rela rela;
1615 /* This symbol needs a copy reloc. Set it up. */
1617 BFD_ASSERT (h->dynindx != -1
1618 && (h->root.type == bfd_link_hash_defined
1619 || h->root.type == bfd_link_hash_defweak));
1621 s = bfd_get_section_by_name (h->root.u.def.section->owner,
1623 BFD_ASSERT (s != NULL);
1625 rela.r_offset = (h->root.u.def.value
1626 + h->root.u.def.section->output_section->vma
1627 + h->root.u.def.section->output_offset);
1628 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
1630 bfd_elf32_swap_reloca_out (output_bfd, &rela,
1631 ((Elf32_External_Rela *) s->contents
1636 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1637 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1638 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1639 sym->st_shndx = SHN_ABS;
1644 /* Finish up the dynamic sections. */
1647 elf_cris_finish_dynamic_sections (output_bfd, info)
1649 struct bfd_link_info *info;
1655 dynobj = elf_hash_table (info)->dynobj;
1657 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
1658 BFD_ASSERT (sgot != NULL);
1659 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1661 if (elf_hash_table (info)->dynamic_sections_created)
1664 Elf32_External_Dyn *dyncon, *dynconend;
1666 splt = bfd_get_section_by_name (dynobj, ".plt");
1667 BFD_ASSERT (splt != NULL && sdyn != NULL);
1669 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1670 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
1671 for (; dyncon < dynconend; dyncon++)
1673 Elf_Internal_Dyn dyn;
1676 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1684 s = bfd_get_section_by_name (output_bfd, ".got");
1685 BFD_ASSERT (s != NULL);
1686 dyn.d_un.d_ptr = s->vma;
1687 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1691 /* Yes, we *can* have a .plt and no .plt.rela, for instance
1692 if all symbols are found in the .got (not .got.plt). */
1693 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1694 dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
1695 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1699 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1702 else if (s->_cooked_size != 0)
1703 dyn.d_un.d_val = s->_cooked_size;
1705 dyn.d_un.d_val = s->_raw_size;
1706 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1710 /* The procedure linkage table relocs (DT_JMPREL) should
1711 not be included in the overall relocs (DT_RELA).
1712 Therefore, we override the DT_RELASZ entry here to
1713 make it not include the JMPREL relocs. Since the
1714 linker script arranges for .rela.plt to follow all
1715 other relocation sections, we don't have to worry
1716 about changing the DT_RELA entry. */
1717 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1720 if (s->_cooked_size != 0)
1721 dyn.d_un.d_val -= s->_cooked_size;
1723 dyn.d_un.d_val -= s->_raw_size;
1725 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1730 /* Fill in the first entry in the procedure linkage table. */
1731 if (splt->_raw_size > 0)
1734 memcpy (splt->contents, elf_cris_pic_plt0_entry, PLT_ENTRY_SIZE);
1737 memcpy (splt->contents, elf_cris_plt0_entry, PLT_ENTRY_SIZE);
1738 bfd_put_32 (output_bfd,
1739 sgot->output_section->vma + sgot->output_offset + 4,
1740 splt->contents + 6);
1741 bfd_put_32 (output_bfd,
1742 sgot->output_section->vma + sgot->output_offset + 8,
1743 splt->contents + 14);
1745 elf_section_data (splt->output_section)->this_hdr.sh_entsize
1751 /* Fill in the first three entries in the global offset table. */
1752 if (sgot->_raw_size > 0)
1755 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1757 bfd_put_32 (output_bfd,
1758 sdyn->output_section->vma + sdyn->output_offset,
1760 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1761 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1764 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1769 /* Return the section that should be marked against GC for a given
1773 cris_elf_gc_mark_hook (abfd, info, rel, h, sym)
1775 struct bfd_link_info * info ATTRIBUTE_UNUSED;
1776 Elf_Internal_Rela * rel;
1777 struct elf_link_hash_entry * h;
1778 Elf_Internal_Sym * sym;
1782 switch (ELF32_R_TYPE (rel->r_info))
1784 case R_CRIS_GNU_VTINHERIT:
1785 case R_CRIS_GNU_VTENTRY:
1789 switch (h->root.type)
1791 case bfd_link_hash_defined:
1792 case bfd_link_hash_defweak:
1793 return h->root.u.def.section;
1795 case bfd_link_hash_common:
1796 return h->root.u.c.p->section;
1805 return bfd_section_from_elf_index (abfd, sym->st_shndx);
1811 /* Update the got entry reference counts for the section being removed. */
1814 cris_elf_gc_sweep_hook (abfd, info, sec, relocs)
1815 bfd * abfd ATTRIBUTE_UNUSED;
1816 struct bfd_link_info * info ATTRIBUTE_UNUSED;
1817 asection * sec ATTRIBUTE_UNUSED;
1818 const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;
1820 Elf_Internal_Shdr *symtab_hdr;
1821 struct elf_link_hash_entry **sym_hashes;
1822 bfd_signed_vma *local_got_refcounts;
1823 const Elf_Internal_Rela *rel, *relend;
1824 unsigned long r_symndx;
1825 struct elf_link_hash_entry *h;
1830 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1831 sym_hashes = elf_sym_hashes (abfd);
1832 local_got_refcounts = elf_local_got_refcounts (abfd);
1834 dynobj = elf_hash_table (info)->dynobj;
1838 sgot = bfd_get_section_by_name (dynobj, ".got");
1839 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1841 relend = relocs + sec->reloc_count;
1842 for (rel = relocs; rel < relend; rel++)
1844 switch (ELF32_R_TYPE (rel->r_info))
1848 r_symndx = ELF32_R_SYM (rel->r_info);
1849 if (r_symndx >= symtab_hdr->sh_info)
1851 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1852 if (h->got.refcount > 0)
1855 if (h->got.refcount == 0)
1857 /* We don't need the .got entry any more. */
1858 sgot->_raw_size -= 4;
1859 srelgot->_raw_size -= sizeof (Elf32_External_Rela);
1866 if (local_got_refcounts != NULL)
1868 if (local_got_refcounts[r_symndx] > 0)
1870 --local_got_refcounts[r_symndx];
1871 if (local_got_refcounts[r_symndx] == 0)
1873 /* We don't need the .got entry any more. */
1874 sgot->_raw_size -= 4;
1876 srelgot->_raw_size -= sizeof (Elf32_External_Rela);
1882 case R_CRIS_16_GOTPLT:
1883 case R_CRIS_32_GOTPLT:
1884 /* For local symbols, treat these like GOT relocs. */
1885 r_symndx = ELF32_R_SYM (rel->r_info);
1886 if (r_symndx < symtab_hdr->sh_info)
1887 goto local_got_reloc;
1889 case R_CRIS_32_PLT_GOTREL:
1890 /* FIXME: We don't garbage-collect away the .got section. */
1891 if (local_got_refcounts != NULL)
1892 local_got_refcounts[-1]--;
1895 case R_CRIS_8_PCREL:
1896 case R_CRIS_16_PCREL:
1897 case R_CRIS_32_PCREL:
1898 case R_CRIS_32_PLT_PCREL:
1899 r_symndx = ELF32_R_SYM (rel->r_info);
1900 if (r_symndx >= symtab_hdr->sh_info)
1902 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1903 if (h->plt.refcount > 0)
1916 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
1917 entry but we found we will not create any. Called when we find we will
1918 not have any PLT for this symbol, by for example
1919 elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
1920 or elf_cris_size_dynamic_sections if no dynamic sections will be
1921 created (we're only linking static objects). */
1924 elf_cris_adjust_gotplt_to_got (h, p)
1925 struct elf_cris_link_hash_entry *h;
1928 struct bfd_link_info *info = (struct bfd_link_info *) p;
1929 bfd *dynobj = elf_hash_table (info)->dynobj;
1931 BFD_ASSERT (dynobj != NULL);
1933 if (h->root.root.type == bfd_link_hash_warning)
1934 h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
1936 /* If nobody wanted a GOTPLT with this symbol, we're done. */
1937 if (h->gotplt_refcount <= 0)
1940 if (h->root.got.refcount > 0)
1942 /* There's a GOT entry for this symbol. Just adjust the refcount.
1943 Probably not necessary at this stage, but keeping it accurate
1944 helps avoiding surprises later. */
1945 h->root.got.refcount += h->gotplt_refcount;
1946 h->gotplt_refcount = -1;
1950 /* No GOT entry for this symbol. We need to create one. */
1951 asection *sgot = bfd_get_section_by_name (dynobj, ".got");
1953 = bfd_get_section_by_name (dynobj, ".rela.got");
1955 /* Put an accurate refcount there. */
1956 h->root.got.refcount = h->gotplt_refcount;
1958 h->gotplt_refcount = -1;
1960 /* We always have a .got section when there are dynamic
1962 BFD_ASSERT (sgot != NULL /* Surely have .got section. */);
1964 /* We might have had a PLT but with no GOT entry and
1965 further no GOT reloc section at all needed before.
1967 if (srelgot == NULL)
1969 srelgot = bfd_make_section (dynobj, ".rela.got");
1972 || !bfd_set_section_flags (dynobj, srelgot,
1977 | SEC_LINKER_CREATED
1979 || !bfd_set_section_alignment (dynobj, srelgot, 2))
1983 /* Allocate space in the .got section. */
1984 sgot->_raw_size += 4;
1986 /* Allocate relocation space. */
1987 srelgot->_raw_size += sizeof (Elf32_External_Rela);
1993 /* Try to fold PLT entries with GOT entries. There are two cases when we
1996 - When all PLT references are GOTPLT references, and there are GOT
1997 references. We don't have to generate a PLT at all.
1999 - When there are both (ordinary) PLT references and GOT references.
2000 We want to make the PLT reference use the ordinary GOT entry rather
2001 than a run-time dynamically resolved GOTPLT entry (since the GOT
2002 entry will have to be resolved at startup anyway).
2004 Though the latter case is handled when room for the PLT is allocated,
2007 Note that this function is called before symbols are forced local by
2008 version scripts. The differing cases are handled by
2009 elf_cris_hide_symbol. */
2012 elf_cris_try_fold_plt_to_got (h, p)
2013 struct elf_cris_link_hash_entry *h;
2016 struct bfd_link_info *info = (struct bfd_link_info *) p;
2018 /* If there are no GOT references for this symbol, we can't fold any
2019 other reference so there's nothing to do. Likewise if there are no
2020 PLT references; GOTPLT references included. */
2021 if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
2024 /* GOTPLT relocs are supposed to be included into the PLT refcount. */
2025 BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);
2027 if (h->gotplt_refcount == h->root.plt.refcount)
2029 /* The only PLT references are GOTPLT references, and there are GOT
2030 references. Convert PLT to GOT references. */
2031 if (! elf_cris_adjust_gotplt_to_got (h, info))
2034 /* Clear the PLT references, so no PLT will be created. */
2035 h->root.plt.offset = (bfd_vma) -1;
2041 /* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
2042 to use a GOT entry (and create one) rather than requiring a GOTPLT
2046 elf_cris_hide_symbol (info, h, force_local)
2047 struct bfd_link_info *info;
2048 struct elf_link_hash_entry *h;
2049 boolean force_local;
2051 elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info);
2053 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
2056 /* Adjust a symbol defined by a dynamic object and referenced by a
2057 regular object. The current definition is in some section of the
2058 dynamic object, but we're not including those sections. We have to
2059 change the definition to something the rest of the link can
2063 elf_cris_adjust_dynamic_symbol (info, h)
2064 struct bfd_link_info *info;
2065 struct elf_link_hash_entry *h;
2069 unsigned int power_of_two;
2071 dynobj = elf_hash_table (info)->dynobj;
2073 /* Make sure we know what is going on here. */
2074 BFD_ASSERT (dynobj != NULL
2075 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
2076 || h->weakdef != NULL
2077 || ((h->elf_link_hash_flags
2078 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
2079 && (h->elf_link_hash_flags
2080 & ELF_LINK_HASH_REF_REGULAR) != 0
2081 && (h->elf_link_hash_flags
2082 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
2084 /* If this is a function, put it in the procedure linkage table. We
2085 will fill in the contents of the procedure linkage table later,
2086 when we know the address of the .got section. */
2087 if (h->type == STT_FUNC
2088 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
2091 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
2092 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0
2093 /* We must always create the plt entry if it was referenced by a
2094 PLT relocation. In this case we already recorded it as a
2096 /* FIXME: m68k and i386 differ here, for unclear reasons. */
2097 && h->dynindx == -1)
2099 /* This case can occur if we saw a PLT reloc in an input file,
2100 but the symbol was never referred to by a dynamic object. In
2101 such a case, we don't actually need to build a procedure
2102 linkage table, and we can just do a PC reloc instead, or
2103 change a .got.plt index to a .got index for GOTPLT relocs. */
2104 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
2105 h->plt.offset = (bfd_vma) -1;
2108 elf_cris_adjust_gotplt_to_got ((struct
2109 elf_cris_link_hash_entry *) h,
2113 /* If there are only GOT references and GOTPLT references to this
2114 PLT entry, get rid of the PLT. */
2115 if (! elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry *)
2119 /* GC or folding may have rendered this entry unused. */
2120 if (h->plt.refcount <= 0)
2122 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
2123 h->plt.offset = (bfd_vma) -1;
2127 /* Make sure this symbol is output as a dynamic symbol. */
2128 if (h->dynindx == -1)
2130 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
2134 s = bfd_get_section_by_name (dynobj, ".plt");
2135 BFD_ASSERT (s != NULL);
2137 /* If this is the first .plt entry, make room for the special
2139 if (s->_raw_size == 0)
2140 s->_raw_size += PLT_ENTRY_SIZE;
2142 /* If this symbol is not defined in a regular file, and we are
2143 not generating a shared library, then set the symbol to this
2144 location in the .plt. This is required to make function
2145 pointers compare as equal between the normal executable and
2146 the shared library. */
2148 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
2150 h->root.u.def.section = s;
2151 h->root.u.def.value = s->_raw_size;
2154 /* If there's already a GOT entry, use that, not a .got.plt. A
2155 GOT field still has a reference count when we get here; it's
2156 not yet changed to an offset. */
2157 if (h->got.refcount > 0)
2159 h->got.refcount += h->plt.refcount;
2161 /* Mark the PLT offset to use the GOT entry by setting the low
2162 bit in the plt offset; it is always a multiple of
2164 BFD_ASSERT ((s->_raw_size & 3) == 0);
2166 /* Change the PLT refcount to an offset. */
2167 h->plt.offset = s->_raw_size;
2169 /* By not setting gotplt_offset (i.e. it remains at 0), we signal
2170 that the got entry should be used instead. */
2171 BFD_ASSERT (((struct elf_cris_link_hash_entry *)
2172 h)->gotplt_offset == 0);
2174 /* Make room for this entry. */
2175 s->_raw_size += PLT_ENTRY_SIZE;
2180 /* No GOT reference for this symbol; prepare for an ordinary PLT. */
2181 h->plt.offset = s->_raw_size;
2183 /* Make room for this entry. */
2184 s->_raw_size += PLT_ENTRY_SIZE;
2186 /* We also need to make an entry in the .got.plt section, which
2187 will be placed in the .got section by the linker script. */
2188 ((struct elf_cris_link_hash_entry *) h)->gotplt_offset
2189 = elf_cris_hash_table (info)->next_gotplt_entry;
2190 elf_cris_hash_table (info)->next_gotplt_entry += 4;
2192 s = bfd_get_section_by_name (dynobj, ".got.plt");
2193 BFD_ASSERT (s != NULL);
2196 /* We also need to make an entry in the .rela.plt section. */
2198 s = bfd_get_section_by_name (dynobj, ".rela.plt");
2199 BFD_ASSERT (s != NULL);
2200 s->_raw_size += sizeof (Elf32_External_Rela);
2205 /* Reinitialize the plt offset now that it is not used as a reference
2207 h->plt.offset = (bfd_vma) -1;
2209 /* If this is a weak symbol, and there is a real definition, the
2210 processor independent code will have arranged for us to see the
2211 real definition first, and we can just use the same value. */
2212 if (h->weakdef != NULL)
2214 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
2215 || h->weakdef->root.type == bfd_link_hash_defweak);
2216 h->root.u.def.section = h->weakdef->root.u.def.section;
2217 h->root.u.def.value = h->weakdef->root.u.def.value;
2221 /* This is a reference to a symbol defined by a dynamic object which
2222 is not a function. */
2224 /* If we are creating a shared library, we must presume that the
2225 only references to the symbol are via the global offset table.
2226 For such cases we need not do anything here; the relocations will
2227 be handled correctly by relocate_section. */
2231 /* If there are no references to this symbol that do not use the
2232 GOT, we don't need to generate a copy reloc. */
2233 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
2236 /* We must allocate the symbol in our .dynbss section, which will
2237 become part of the .bss section of the executable. There will be
2238 an entry for this symbol in the .dynsym section. The dynamic
2239 object will contain position independent code, so all references
2240 from the dynamic object to this symbol will go through the global
2241 offset table. The dynamic linker will use the .dynsym entry to
2242 determine the address it must put in the global offset table, so
2243 both the dynamic object and the regular object will refer to the
2244 same memory location for the variable. */
2246 s = bfd_get_section_by_name (dynobj, ".dynbss");
2247 BFD_ASSERT (s != NULL);
2249 /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
2250 copy the initial value out of the dynamic object and into the
2251 runtime process image. We need to remember the offset into the
2252 .rela.bss section we are going to use. */
2253 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2257 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
2258 BFD_ASSERT (srel != NULL);
2259 srel->_raw_size += sizeof (Elf32_External_Rela);
2260 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
2263 /* Historic precedent: m68k and i386 allow max 8-byte alignment for the
2264 thing to copy; so do we. */
2266 /* We need to figure out the alignment required for this symbol. I
2267 have no idea how ELF linkers handle this. */
2268 power_of_two = bfd_log2 (h->size);
2269 if (power_of_two > 3)
2272 /* Apply the required alignment. */
2273 s->_raw_size = BFD_ALIGN (s->_raw_size,
2274 (bfd_size_type) (1 << power_of_two));
2275 if (power_of_two > bfd_get_section_alignment (dynobj, s))
2277 if (!bfd_set_section_alignment (dynobj, s, power_of_two))
2281 /* Define the symbol as being at this point in the section. */
2282 h->root.u.def.section = s;
2283 h->root.u.def.value = s->_raw_size;
2285 /* Increment the section size to make room for the symbol. */
2286 s->_raw_size += h->size;
2291 /* Look through the relocs for a section during the first phase. */
2294 cris_elf_check_relocs (abfd, info, sec, relocs)
2296 struct bfd_link_info *info;
2298 const Elf_Internal_Rela *relocs;
2301 Elf_Internal_Shdr *symtab_hdr;
2302 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
2303 bfd_signed_vma *local_got_refcounts;
2304 const Elf_Internal_Rela *rel;
2305 const Elf_Internal_Rela *rel_end;
2310 if (info->relocateable)
2313 dynobj = elf_hash_table (info)->dynobj;
2314 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2315 sym_hashes = elf_sym_hashes (abfd);
2316 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
2317 local_got_refcounts = elf_local_got_refcounts (abfd);
2323 if (!elf_bad_symtab (abfd))
2324 sym_hashes_end -= symtab_hdr->sh_info;
2326 rel_end = relocs + sec->reloc_count;
2327 for (rel = relocs; rel < rel_end; rel++)
2329 struct elf_link_hash_entry *h;
2330 unsigned long r_symndx;
2331 enum elf_cris_reloc_type r_type;
2333 r_symndx = ELF32_R_SYM (rel->r_info);
2334 if (r_symndx < symtab_hdr->sh_info)
2337 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2339 r_type = ELF32_R_TYPE (rel->r_info);
2341 /* Some relocs require linker-created sections; we need to hang them
2342 on the first input bfd we found that contained dynamic relocs. */
2347 case R_CRIS_32_GOTREL:
2348 case R_CRIS_32_PLT_GOTREL:
2349 case R_CRIS_32_PLT_PCREL:
2350 case R_CRIS_16_GOTPLT:
2351 case R_CRIS_32_GOTPLT:
2354 elf_hash_table (info)->dynobj = dynobj = abfd;
2356 /* Create the .got section, so we can assume it's always
2357 present whenever there's a dynobj. */
2358 if (!_bfd_elf_create_got_section (dynobj, info))
2367 /* Some relocs require a global offset table (but perhaps not a
2368 specific GOT entry). */
2373 case R_CRIS_32_GOTREL:
2374 case R_CRIS_32_PLT_GOTREL:
2376 sgot = bfd_get_section_by_name (dynobj, ".got");
2378 if (local_got_refcounts == NULL)
2382 /* We use index local_got_refcounts[-1] to count all
2383 GOT-relative relocations that do not have explicit
2385 amt = symtab_hdr->sh_info + 1;
2386 amt *= sizeof (bfd_signed_vma);
2387 local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
2388 if (local_got_refcounts == NULL)
2391 local_got_refcounts++;
2392 elf_local_got_refcounts (abfd) = local_got_refcounts;
2402 case R_CRIS_16_GOTPLT:
2403 case R_CRIS_32_GOTPLT:
2404 /* Mark that we need a GOT entry if the PLT entry (and its GOT
2405 entry) is eliminated. We can only do this for a non-local
2409 ((struct elf_cris_link_hash_entry *) h)->gotplt_refcount++;
2410 goto handle_gotplt_reloc;
2412 /* If h is NULL then this is a local symbol, and we must make a
2413 GOT entry for it, so handle it like a GOT reloc. */
2418 /* This symbol requires a global offset table entry. */
2421 && (h != NULL || info->shared))
2423 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2424 if (srelgot == NULL)
2426 srelgot = bfd_make_section (dynobj, ".rela.got");
2428 || !bfd_set_section_flags (dynobj, srelgot,
2433 | SEC_LINKER_CREATED
2435 || !bfd_set_section_alignment (dynobj, srelgot, 2))
2442 if (h->got.refcount == 0)
2444 /* Make sure this symbol is output as a dynamic symbol. */
2445 if (h->dynindx == -1)
2447 if (!bfd_elf32_link_record_dynamic_symbol (info, h))
2451 /* Allocate space in the .got section. */
2452 sgot->_raw_size += 4;
2453 /* Allocate relocation space. */
2454 srelgot->_raw_size += sizeof (Elf32_External_Rela);
2460 /* This is a global offset table entry for a local symbol. */
2461 if (local_got_refcounts[r_symndx] == 0)
2463 sgot->_raw_size += 4;
2466 /* If we are generating a shared object, we need to
2467 output a R_CRIS_RELATIVE reloc so that the dynamic
2468 linker can adjust this GOT entry. */
2469 srelgot->_raw_size += sizeof (Elf32_External_Rela);
2472 local_got_refcounts[r_symndx]++;
2476 case R_CRIS_32_GOTREL:
2477 /* This reference requires a global offset table.
2478 FIXME: The actual refcount isn't used currently; the .got
2479 section can't be removed if there were any references in the
2481 local_got_refcounts[-1]++;
2484 handle_gotplt_reloc:
2486 case R_CRIS_32_PLT_GOTREL:
2487 /* This reference requires a global offset table. */
2488 local_got_refcounts[-1]++;
2491 case R_CRIS_32_PLT_PCREL:
2492 /* This symbol requires a procedure linkage table entry. We
2493 actually build the entry in adjust_dynamic_symbol,
2494 because this might be a case of linking PIC code which is
2495 never referenced by a dynamic object, in which case we
2496 don't need to generate a procedure linkage table entry
2499 /* If this is a local symbol, we resolve it directly without
2500 creating a procedure linkage table entry. */
2504 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2511 /* Let's help debug shared library creation. Any of these
2512 relocs can be used in shared libs, but pages containing them
2513 cannot be shared. Don't warn for sections we don't care
2514 about, such as debug sections or non-constant sections. We
2515 can't help tables of (global) function pointers, for example,
2516 though they must be emitted in a data section to avoid having
2517 impure text sections. */
2519 && (sec->flags & SEC_ALLOC) != 0
2520 && (sec->flags & SEC_READONLY) != 0)
2522 /* FIXME: How do we make this optionally a warning only? */
2523 (*_bfd_error_handler)
2524 (_("%s, section %s:\n relocation %s should not be used in a shared object; recompile with -fPIC"),
2525 bfd_archive_filename (abfd),
2527 cris_elf_howto_table[r_type].name);
2531 case R_CRIS_8_PCREL:
2532 case R_CRIS_16_PCREL:
2533 case R_CRIS_32_PCREL:
2536 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
2538 /* Make sure a plt entry is created for this symbol if it
2539 turns out to be a function defined by a dynamic object. */
2543 /* If we are creating a shared library and this is not a local
2544 symbol, we need to copy the reloc into the shared library.
2545 However when linking with -Bsymbolic and this is a global
2546 symbol which is defined in an object we are including in the
2547 link (i.e., DEF_REGULAR is set), then we can resolve the
2548 reloc directly. At this point we have not seen all the input
2549 files, so it is possible that DEF_REGULAR is not set now but
2550 will be set later (it is never cleared). In case of a weak
2551 definition, DEF_REGULAR may be cleared later by a strong
2552 definition in a shared library. We account for that
2553 possibility below by storing information in the relocs_copied
2554 field of the hash table entry. A similar situation occurs
2555 when creating shared libraries and symbol visibility changes
2556 render the symbol local. */
2558 /* No need to do anything if we're not creating a shared object. */
2562 /* We don't need to handle relocs into sections not going into
2563 the "real" output. */
2564 if ((sec->flags & SEC_ALLOC) == 0)
2567 /* We can only eliminate PC-relative relocs. */
2568 if (r_type == R_CRIS_8_PCREL
2569 || r_type == R_CRIS_16_PCREL
2570 || r_type == R_CRIS_32_PCREL)
2572 /* If the symbol is local, then we can eliminate the reloc. */
2576 /* If this is with -Bsymbolic and the symbol isn't weak, and
2577 is defined by an ordinary object (the ones we include in
2578 this shared library) then we can also eliminate the
2579 reloc. See comment above for more eliminable cases which
2580 we can't identify at this time. */
2582 && h->root.type != bfd_link_hash_defweak
2583 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0)
2587 /* We create a reloc section in dynobj and make room for this
2593 name = (bfd_elf_string_from_elf_section
2595 elf_elfheader (abfd)->e_shstrndx,
2596 elf_section_data (sec)->rel_hdr.sh_name));
2600 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2601 && strcmp (bfd_get_section_name (abfd, sec),
2604 sreloc = bfd_get_section_by_name (dynobj, name);
2607 sreloc = bfd_make_section (dynobj, name);
2609 || !bfd_set_section_flags (dynobj, sreloc,
2614 | SEC_LINKER_CREATED
2616 || !bfd_set_section_alignment (dynobj, sreloc, 2))
2619 if (sec->flags & SEC_READONLY)
2620 info->flags |= DF_TEXTREL;
2623 sreloc->_raw_size += sizeof (Elf32_External_Rela);
2625 /* If we are linking with -Bsymbolic, we count the number of PC
2626 relative relocations we have entered for this symbol, so that
2627 we can discard them again if the symbol is later defined by a
2628 regular object. We know that h is really a pointer to an
2629 elf_cris_link_hash_entry. */
2630 if ((r_type == R_CRIS_8_PCREL
2631 || r_type == R_CRIS_16_PCREL
2632 || r_type == R_CRIS_32_PCREL)
2635 struct elf_cris_link_hash_entry *eh;
2636 struct elf_cris_pcrel_relocs_copied *p;
2638 eh = (struct elf_cris_link_hash_entry *) h;
2640 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2641 if (p->section == sreloc)
2646 p = ((struct elf_cris_pcrel_relocs_copied *)
2647 bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
2650 p->next = eh->pcrel_relocs_copied;
2651 eh->pcrel_relocs_copied = p;
2652 p->section = sreloc;
2660 /* This relocation describes the C++ object vtable hierarchy.
2661 Reconstruct it for later use during GC. */
2662 case R_CRIS_GNU_VTINHERIT:
2663 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2667 /* This relocation describes which C++ vtable entries are actually
2668 used. Record for later use during GC. */
2669 case R_CRIS_GNU_VTENTRY:
2670 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2675 /* Other relocs do not appear here. */
2676 bfd_set_error (bfd_error_bad_value);
2684 /* Set the sizes of the dynamic sections. */
2687 elf_cris_size_dynamic_sections (output_bfd, info)
2688 bfd *output_bfd ATTRIBUTE_UNUSED;
2689 struct bfd_link_info *info;
2696 dynobj = elf_hash_table (info)->dynobj;
2697 BFD_ASSERT (dynobj != NULL);
2699 if (elf_hash_table (info)->dynamic_sections_created)
2701 /* Set the contents of the .interp section to the interpreter. */
2704 s = bfd_get_section_by_name (dynobj, ".interp");
2705 BFD_ASSERT (s != NULL);
2706 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
2707 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2712 /* Adjust all expected GOTPLT uses to use a GOT entry instead. */
2713 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2714 elf_cris_adjust_gotplt_to_got,
2717 /* We may have created entries in the .rela.got section.
2718 However, if we are not creating the dynamic sections, we will
2719 not actually use these entries. Reset the size of .rela.got,
2720 which will cause it to get stripped from the output file
2722 s = bfd_get_section_by_name (dynobj, ".rela.got");
2727 /* If this is a -Bsymbolic shared link, then we need to discard all PC
2728 relative relocs against symbols defined in a regular object. We
2729 allocated space for them in the check_relocs routine, but we will not
2730 fill them in in the relocate_section routine. We also discard space
2731 for relocs that have become for local symbols due to symbol
2732 visibility changes. For programs, we discard space for relocs for
2733 symbols not referenced by any dynamic object. */
2735 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2736 elf_cris_discard_excess_dso_dynamics,
2739 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2740 elf_cris_discard_excess_program_dynamics,
2743 /* The check_relocs and adjust_dynamic_symbol entry points have
2744 determined the sizes of the various dynamic sections. Allocate
2748 for (s = dynobj->sections; s != NULL; s = s->next)
2753 if ((s->flags & SEC_LINKER_CREATED) == 0)
2756 /* It's OK to base decisions on the section name, because none
2757 of the dynobj section names depend upon the input files. */
2758 name = bfd_get_section_name (dynobj, s);
2762 if (strcmp (name, ".plt") == 0)
2764 if (s->_raw_size == 0)
2766 /* Strip this section if we don't need it; see the
2772 /* Remember whether there is a PLT. */
2776 else if (strncmp (name, ".rela", 5) == 0)
2778 if (s->_raw_size == 0)
2780 /* If we don't need this section, strip it from the
2781 output file. This is mostly to handle .rela.bss and
2782 .rela.plt. We must create both sections in
2783 create_dynamic_sections, because they must be created
2784 before the linker maps input sections to output
2785 sections. The linker does that before
2786 adjust_dynamic_symbol is called, and it is that
2787 function which decides whether anything needs to go
2788 into these sections. */
2793 /* Remember whether there are any reloc sections other
2795 if (strcmp (name, ".rela.plt") != 0)
2798 /* We use the reloc_count field as a counter if we need
2799 to copy relocs into the output file. */
2803 else if (strncmp (name, ".got", 4) != 0)
2805 /* It's not one of our sections, so don't allocate space. */
2811 _bfd_strip_section_from_output (info, s);
2815 /* Allocate memory for the section contents. We use bfd_zalloc here
2816 in case unused entries are not reclaimed before the section's
2817 contents are written out. This should not happen, but this way
2818 if it does, we will not write out garbage. For reloc sections,
2819 this will make entries have the type R_CRIS_NONE. */
2820 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
2821 if (s->contents == NULL && s->_raw_size != 0)
2825 if (elf_hash_table (info)->dynamic_sections_created)
2827 /* Add some entries to the .dynamic section. We fill in the
2828 values later, in elf_cris_finish_dynamic_sections, but we
2829 must add the entries now so that we get the correct size for
2830 the .dynamic section. The DT_DEBUG entry is filled in by the
2831 dynamic linker and used by the debugger. */
2832 #define add_dynamic_entry(TAG, VAL) \
2833 bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
2837 if (!add_dynamic_entry (DT_DEBUG, 0))
2843 if (!add_dynamic_entry (DT_PLTGOT, 0)
2844 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2845 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2846 || !add_dynamic_entry (DT_JMPREL, 0))
2852 if (!add_dynamic_entry (DT_RELA, 0)
2853 || !add_dynamic_entry (DT_RELASZ, 0)
2854 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2858 if ((info->flags & DF_TEXTREL) != 0)
2860 if (!add_dynamic_entry (DT_TEXTREL, 0))
2862 info->flags |= DF_TEXTREL;
2865 #undef add_dynamic_entry
2870 /* This function is called via elf_cris_link_hash_traverse if we are
2871 creating a shared object. In the -Bsymbolic case, it discards the
2872 space allocated to copy PC relative relocs against symbols which
2873 are defined in regular objects. For the normal non-symbolic case,
2874 we also discard space for relocs that have become local due to
2875 symbol visibility changes. We allocated space for them in the
2876 check_relocs routine, but we won't fill them in in the
2877 relocate_section routine. */
2880 elf_cris_discard_excess_dso_dynamics (h, inf)
2881 struct elf_cris_link_hash_entry *h;
2884 struct elf_cris_pcrel_relocs_copied *s;
2885 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2887 if (h->root.root.type == bfd_link_hash_warning)
2888 h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
2890 /* If a symbol has been forced local or we have found a regular
2891 definition for the symbolic link case, then we won't be needing
2893 if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
2894 && ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
2897 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
2898 s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
2904 /* This function is called via elf_cris_link_hash_traverse if we are *not*
2905 creating a shared object. We discard space for relocs for symbols put
2906 in the .got, but which we found we do not have to resolve at run-time. */
2909 elf_cris_discard_excess_program_dynamics (h, inf)
2910 struct elf_cris_link_hash_entry *h;
2913 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2915 if (h->root.root.type == bfd_link_hash_warning)
2916 h = (struct elf_cris_link_hash_entry *) h->root.root.u.i.link;
2918 /* If we're not creating a shared library and have a symbol which is
2919 referred to by .got references, but the symbol is defined locally,
2920 (or rather, not referred to by a DSO and not defined by a DSO) then
2921 lose the reloc for the .got (don't allocate room for it). */
2922 if ((h->root.elf_link_hash_flags
2923 & (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_DEF_DYNAMIC)) == 0)
2925 if (h->root.got.refcount > 0
2926 /* The size of this section is only valid and in sync with the
2927 various reference counts if we do dynamic; don't decrement it
2929 && elf_hash_table (info)->dynamic_sections_created)
2931 bfd *dynobj = elf_hash_table (info)->dynobj;
2934 BFD_ASSERT (dynobj != NULL);
2936 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2938 BFD_ASSERT (srelgot != NULL);
2940 srelgot->_raw_size -= sizeof (Elf32_External_Rela);
2943 /* If the locally-defined symbol isn't used by a DSO, then we don't
2944 have to export it as a dynamic symbol. This was already done for
2945 functions; doing this for all symbols would presumably not
2946 introduce new problems. Of course we don't do this if we're
2947 exporting all dynamic symbols. */
2948 if (! info->export_dynamic)
2950 h->root.dynindx = -1;
2951 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2952 h->root.dynstr_index);
2959 /* Reject a file depending on presence and expectation of prefixed
2960 underscores on symbols. */
2963 cris_elf_object_p (abfd)
2966 if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
2967 return (bfd_get_symbol_leading_char (abfd) == '_');
2969 return (bfd_get_symbol_leading_char (abfd) == 0);
2972 /* Mark presence or absence of leading underscore. */
2975 cris_elf_final_write_processing (abfd, linker)
2977 boolean linker ATTRIBUTE_UNUSED;
2979 if (bfd_get_symbol_leading_char (abfd) == '_')
2980 elf_elfheader (abfd)->e_flags |= EF_CRIS_UNDERSCORE;
2982 elf_elfheader (abfd)->e_flags &= ~EF_CRIS_UNDERSCORE;
2985 /* Display the flags field. */
2988 cris_elf_print_private_bfd_data (abfd, ptr)
2992 FILE *file = (FILE *) ptr;
2994 BFD_ASSERT (abfd != NULL && ptr != NULL)
2996 _bfd_elf_print_private_bfd_data (abfd, ptr);
2998 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
3000 if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
3001 fprintf (file, _(" [symbols have a _ prefix]"));
3007 /* Don't mix files with and without a leading underscore. */
3010 cris_elf_merge_private_bfd_data (ibfd, obfd)
3014 flagword old_flags, new_flags;
3016 if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
3019 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3020 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3023 if (! elf_flags_init (obfd))
3025 /* This happens when ld starts out with a 'blank' output file. */
3026 elf_flags_init (obfd) = true;
3028 /* Set flags according to current bfd_target. */
3029 cris_elf_final_write_processing (obfd, false);
3032 old_flags = elf_elfheader (obfd)->e_flags;
3033 new_flags = elf_elfheader (ibfd)->e_flags;
3035 /* Is this good or bad? We'll follow with other excluding flags. */
3036 if ((old_flags & EF_CRIS_UNDERSCORE) != (new_flags & EF_CRIS_UNDERSCORE))
3038 (*_bfd_error_handler)
3039 ((new_flags & EF_CRIS_UNDERSCORE)
3040 ? _("%s: uses _-prefixed symbols, but writing file with non-prefixed symbols")
3041 : _("%s: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
3042 bfd_archive_filename (ibfd));
3043 bfd_set_error (bfd_error_bad_value);
3051 static enum elf_reloc_type_class
3052 elf_cris_reloc_type_class (rela)
3053 const Elf_Internal_Rela *rela;
3055 switch ((int) ELF32_R_TYPE (rela->r_info))
3057 case R_CRIS_RELATIVE:
3058 return reloc_class_relative;
3059 case R_CRIS_JUMP_SLOT:
3060 return reloc_class_plt;
3062 return reloc_class_copy;
3064 return reloc_class_normal;
3068 #define ELF_ARCH bfd_arch_cris
3069 #define ELF_MACHINE_CODE EM_CRIS
3070 #define ELF_MAXPAGESIZE 0x2000
3072 #define TARGET_LITTLE_SYM bfd_elf32_cris_vec
3073 #define TARGET_LITTLE_NAME "elf32-cris"
3074 #define elf_symbol_leading_char 0
3076 #define elf_info_to_howto_rel NULL
3077 #define elf_info_to_howto cris_info_to_howto_rela
3078 #define elf_backend_relocate_section cris_elf_relocate_section
3079 #define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
3080 #define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
3081 #define elf_backend_check_relocs cris_elf_check_relocs
3082 #define elf_backend_grok_prstatus cris_elf_grok_prstatus
3083 #define elf_backend_grok_psinfo cris_elf_grok_psinfo
3085 #define elf_backend_can_gc_sections 1
3086 #define elf_backend_can_refcount 1
3088 #define elf_backend_object_p cris_elf_object_p
3089 #define elf_backend_final_write_processing \
3090 cris_elf_final_write_processing
3091 #define bfd_elf32_bfd_print_private_bfd_data \
3092 cris_elf_print_private_bfd_data
3093 #define bfd_elf32_bfd_merge_private_bfd_data \
3094 cris_elf_merge_private_bfd_data
3096 #define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
3098 #define bfd_elf32_bfd_link_hash_table_create \
3099 elf_cris_link_hash_table_create
3100 #define elf_backend_adjust_dynamic_symbol \
3101 elf_cris_adjust_dynamic_symbol
3102 #define elf_backend_size_dynamic_sections \
3103 elf_cris_size_dynamic_sections
3104 #define elf_backend_finish_dynamic_symbol \
3105 elf_cris_finish_dynamic_symbol
3106 #define elf_backend_finish_dynamic_sections \
3107 elf_cris_finish_dynamic_sections
3108 #define elf_backend_create_dynamic_sections \
3109 _bfd_elf_create_dynamic_sections
3110 #define bfd_elf32_bfd_final_link \
3111 _bfd_elf32_gc_common_final_link
3112 #define elf_backend_hide_symbol elf_cris_hide_symbol
3113 #define elf_backend_reloc_type_class elf_cris_reloc_type_class
3115 #define elf_backend_want_got_plt 1
3116 #define elf_backend_plt_readonly 1
3117 #define elf_backend_want_plt_sym 0
3118 #define elf_backend_got_header_size 12
3119 #define elf_backend_plt_header_size PLT_ENTRY_SIZE
3121 /* Later, we my want to optimize RELA entries into REL entries for dynamic
3122 linking and libraries (if it's a win of any significance). Until then,
3123 take the easy route. */
3124 #define elf_backend_may_use_rel_p 0
3125 #define elf_backend_may_use_rela_p 1
3127 #include "elf32-target.h"
3129 #define INCLUDED_TARGET_FILE
3131 #undef TARGET_LITTLE_SYM
3132 #undef TARGET_LITTLE_NAME
3133 #undef elf_symbol_leading_char
3135 #define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
3136 #define TARGET_LITTLE_NAME "elf32-us-cris"
3137 #define elf_symbol_leading_char '_'
3139 #include "elf32-target.h"