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_alloc (abfd, 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))
720 bfd_release (abfd, ret);
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);
1301 _bfd_elf_section_offset (output_bfd, info, input_section,
1303 if (outrel.r_offset == (bfd_vma) -1)
1305 outrel.r_offset += (input_section->output_section->vma
1306 + input_section->output_offset);
1310 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);
1322 outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
1323 outrel.r_addend = relocation + rel->r_addend;
1327 if (r_type == R_CRIS_32)
1330 outrel.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1331 outrel.r_addend = relocation + rel->r_addend;
1338 sec = local_sections[r_symndx];
1341 BFD_ASSERT (h->root.type == bfd_link_hash_defined
1343 == bfd_link_hash_defweak));
1344 sec = h->root.u.def.section;
1346 if (sec != NULL && bfd_is_abs_section (sec))
1348 else if (sec == NULL || sec->owner == NULL)
1350 bfd_set_error (bfd_error_bad_value);
1357 osec = sec->output_section;
1358 indx = elf_section_data (osec)->dynindx;
1359 BFD_ASSERT (indx > 0);
1363 outrel.r_info = ELF32_R_INFO (indx, r_type);
1364 outrel.r_addend = relocation + rel->r_addend;
1368 bfd_elf32_swap_reloca_out (output_bfd, &outrel,
1369 (((Elf32_External_Rela *)
1371 + sreloc->reloc_count));
1372 ++sreloc->reloc_count;
1374 /* This reloc will be computed at runtime, so there's no
1375 need to do anything now, except for R_CRIS_32 relocations
1376 that have been turned into R_CRIS_RELATIVE. */
1384 r = cris_final_link_relocate (howto, input_bfd, input_section,
1385 contents, rel, relocation);
1387 if (r != bfd_reloc_ok)
1389 const char * msg = (const char *) NULL;
1393 case bfd_reloc_overflow:
1394 r = info->callbacks->reloc_overflow
1395 (info, symname, howto->name, (bfd_vma) 0,
1396 input_bfd, input_section, rel->r_offset);
1399 case bfd_reloc_undefined:
1400 r = info->callbacks->undefined_symbol
1401 (info, symname, input_bfd, input_section, rel->r_offset,
1405 case bfd_reloc_outofrange:
1406 msg = _("internal error: out of range error");
1409 case bfd_reloc_notsupported:
1410 msg = _("internal error: unsupported relocation error");
1413 case bfd_reloc_dangerous:
1414 msg = _("internal error: dangerous relocation");
1418 msg = _("internal error: unknown error");
1423 r = info->callbacks->warning
1424 (info, msg, symname, input_bfd, input_section, rel->r_offset);
1434 /* Finish up dynamic symbol handling. We set the contents of various
1435 dynamic sections here. */
1438 elf_cris_finish_dynamic_symbol (output_bfd, info, h, sym)
1440 struct bfd_link_info *info;
1441 struct elf_link_hash_entry *h;
1442 Elf_Internal_Sym *sym;
1445 int plt_off1 = 2, plt_off2 = 10, plt_off3 = 16;
1447 dynobj = elf_hash_table (info)->dynobj;
1449 if (h->plt.offset != (bfd_vma) -1)
1457 bfd_vma gotplt_offset
1458 = ((struct elf_cris_link_hash_entry *) h)->gotplt_offset;
1459 Elf_Internal_Rela rela;
1460 boolean has_gotplt = gotplt_offset != 0;
1462 /* Get the index in the procedure linkage table which
1463 corresponds to this symbol. This is the index of this symbol
1464 in all the symbols for which we are making plt entries. The
1465 first entry in the procedure linkage table is reserved. */
1466 /* We have to count backwards here, and the result is only valid as
1467 an index into .got.plt and its relocations. FIXME: Constants... */
1468 bfd_vma gotplt_index = gotplt_offset/4 - 3;
1470 /* Get the offset into the .got table of the entry that corresponds
1471 to this function. Note that we embed knowledge that "incoming"
1472 .got goes after .got.plt in the output without padding (pointer
1473 aligned). However, that knowledge is present in several other
1474 places too, here and in elflink.h at least. */
1478 : h->got.offset + elf_cris_hash_table(info)->next_gotplt_entry);
1480 /* This symbol has an entry in the procedure linkage table. Set it
1483 BFD_ASSERT (h->dynindx != -1);
1485 splt = bfd_get_section_by_name (dynobj, ".plt");
1486 sgot = bfd_get_section_by_name (dynobj, ".got");
1487 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1488 srela = bfd_get_section_by_name (dynobj, ".rela.plt");
1489 BFD_ASSERT (splt != NULL && sgotplt != NULL
1490 && (! has_gotplt || srela != NULL));
1492 got_base = sgotplt->output_section->vma + sgotplt->output_offset;
1494 /* Fill in the entry in the procedure linkage table. */
1497 memcpy (splt->contents + h->plt.offset, elf_cris_plt_entry,
1500 /* We need to enter the absolute address of the GOT entry here. */
1501 bfd_put_32 (output_bfd, got_base + got_offset,
1502 splt->contents + h->plt.offset + plt_off1);
1506 memcpy (splt->contents + h->plt.offset, elf_cris_pic_plt_entry,
1508 bfd_put_32 (output_bfd, got_offset,
1509 splt->contents + h->plt.offset + plt_off1);
1512 /* Fill in the plt entry and make a relocation, if this is a "real"
1516 /* Fill in the offset into the reloc table. */
1517 bfd_put_32 (output_bfd,
1518 gotplt_index * sizeof (Elf32_External_Rela),
1519 splt->contents + h->plt.offset + plt_off2);
1521 /* Fill in the offset to the first PLT entry, where to "jump". */
1522 bfd_put_32 (output_bfd, - (h->plt.offset + plt_off3 + 4),
1523 splt->contents + h->plt.offset + plt_off3);
1525 /* Fill in the entry in the global offset table with the address of
1526 the relocating stub. */
1527 bfd_put_32 (output_bfd,
1528 (splt->output_section->vma
1529 + splt->output_offset
1532 sgotplt->contents + got_offset);
1534 /* Fill in the entry in the .rela.plt section. */
1535 rela.r_offset = (sgotplt->output_section->vma
1536 + sgotplt->output_offset
1538 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_JUMP_SLOT);
1540 bfd_elf32_swap_reloca_out (output_bfd, &rela,
1541 ((Elf32_External_Rela *) srela->contents
1545 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
1547 /* Mark the symbol as undefined, rather than as defined in
1548 the .plt section. Leave the value alone. */
1549 sym->st_shndx = SHN_UNDEF;
1551 /* FIXME: From elf32-sparc.c 2001-02-19 (1.18). I still don't
1552 know whether resetting the value is significant; if it really
1553 is, rather than a quirk or bug in the sparc port, then I
1554 believe we'd see this elsewhere. */
1555 /* If the symbol is weak, we do need to clear the value.
1556 Otherwise, the PLT entry would provide a definition for
1557 the symbol even if the symbol wasn't defined anywhere,
1558 and so the symbol would never be NULL. */
1559 if ((h->elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR_NONWEAK)
1565 /* We don't emit .got relocs for symbols that aren't in the
1566 dynamic-symbols table for an ordinary program. */
1567 if (h->got.offset != (bfd_vma) -1
1568 && (info->shared || h->dynindx != -1))
1572 Elf_Internal_Rela rela;
1575 /* This symbol has an entry in the global offset table. Set it up. */
1577 sgot = bfd_get_section_by_name (dynobj, ".got");
1578 srela = bfd_get_section_by_name (dynobj, ".rela.got");
1579 BFD_ASSERT (sgot != NULL && srela != NULL);
1581 rela.r_offset = (sgot->output_section->vma
1582 + sgot->output_offset
1583 + (h->got.offset &~ (bfd_vma) 1));
1585 /* If this is a static link, or it is a -Bsymbolic link and the
1586 symbol is defined locally or was forced to be local because
1587 of a version file, we just want to emit a RELATIVE reloc.
1588 The entry in the global offset table will already have been
1589 initialized in the relocate_section function. */
1590 where = sgot->contents + (h->got.offset &~ (bfd_vma) 1);
1591 if (! elf_hash_table (info)->dynamic_sections_created
1593 && (info->symbolic || h->dynindx == -1)
1594 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
1596 rela.r_info = ELF32_R_INFO (0, R_CRIS_RELATIVE);
1597 rela.r_addend = bfd_get_signed_32 (output_bfd, where);
1601 bfd_put_32 (output_bfd, (bfd_vma) 0, where);
1602 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_GLOB_DAT);
1606 bfd_elf32_swap_reloca_out (output_bfd, &rela,
1607 ((Elf32_External_Rela *) srela->contents
1608 + srela->reloc_count));
1609 ++srela->reloc_count;
1612 if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0)
1615 Elf_Internal_Rela rela;
1617 /* This symbol needs a copy reloc. Set it up. */
1619 BFD_ASSERT (h->dynindx != -1
1620 && (h->root.type == bfd_link_hash_defined
1621 || h->root.type == bfd_link_hash_defweak));
1623 s = bfd_get_section_by_name (h->root.u.def.section->owner,
1625 BFD_ASSERT (s != NULL);
1627 rela.r_offset = (h->root.u.def.value
1628 + h->root.u.def.section->output_section->vma
1629 + h->root.u.def.section->output_offset);
1630 rela.r_info = ELF32_R_INFO (h->dynindx, R_CRIS_COPY);
1632 bfd_elf32_swap_reloca_out (output_bfd, &rela,
1633 ((Elf32_External_Rela *) s->contents
1638 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
1639 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
1640 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
1641 sym->st_shndx = SHN_ABS;
1646 /* Finish up the dynamic sections. */
1649 elf_cris_finish_dynamic_sections (output_bfd, info)
1651 struct bfd_link_info *info;
1657 dynobj = elf_hash_table (info)->dynobj;
1659 sgot = bfd_get_section_by_name (dynobj, ".got.plt");
1660 BFD_ASSERT (sgot != NULL);
1661 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
1663 if (elf_hash_table (info)->dynamic_sections_created)
1666 Elf32_External_Dyn *dyncon, *dynconend;
1668 splt = bfd_get_section_by_name (dynobj, ".plt");
1669 BFD_ASSERT (splt != NULL && sdyn != NULL);
1671 dyncon = (Elf32_External_Dyn *) sdyn->contents;
1672 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
1673 for (; dyncon < dynconend; dyncon++)
1675 Elf_Internal_Dyn dyn;
1678 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
1686 s = bfd_get_section_by_name (output_bfd, ".got");
1687 BFD_ASSERT (s != NULL);
1688 dyn.d_un.d_ptr = s->vma;
1689 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1693 /* Yes, we *can* have a .plt and no .plt.rela, for instance
1694 if all symbols are found in the .got (not .got.plt). */
1695 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1696 dyn.d_un.d_ptr = s != NULL ? s->vma : 0;
1697 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1701 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1704 else if (s->_cooked_size != 0)
1705 dyn.d_un.d_val = s->_cooked_size;
1707 dyn.d_un.d_val = s->_raw_size;
1708 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1712 /* The procedure linkage table relocs (DT_JMPREL) should
1713 not be included in the overall relocs (DT_RELA).
1714 Therefore, we override the DT_RELASZ entry here to
1715 make it not include the JMPREL relocs. Since the
1716 linker script arranges for .rela.plt to follow all
1717 other relocation sections, we don't have to worry
1718 about changing the DT_RELA entry. */
1719 s = bfd_get_section_by_name (output_bfd, ".rela.plt");
1722 if (s->_cooked_size != 0)
1723 dyn.d_un.d_val -= s->_cooked_size;
1725 dyn.d_un.d_val -= s->_raw_size;
1727 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
1732 /* Fill in the first entry in the procedure linkage table. */
1733 if (splt->_raw_size > 0)
1736 memcpy (splt->contents, elf_cris_pic_plt0_entry, PLT_ENTRY_SIZE);
1739 memcpy (splt->contents, elf_cris_plt0_entry, PLT_ENTRY_SIZE);
1740 bfd_put_32 (output_bfd,
1741 sgot->output_section->vma + sgot->output_offset + 4,
1742 splt->contents + 6);
1743 bfd_put_32 (output_bfd,
1744 sgot->output_section->vma + sgot->output_offset + 8,
1745 splt->contents + 14);
1747 elf_section_data (splt->output_section)->this_hdr.sh_entsize
1753 /* Fill in the first three entries in the global offset table. */
1754 if (sgot->_raw_size > 0)
1757 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
1759 bfd_put_32 (output_bfd,
1760 sdyn->output_section->vma + sdyn->output_offset,
1762 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
1763 bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
1766 elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
1771 /* Return the section that should be marked against GC for a given
1775 cris_elf_gc_mark_hook (abfd, info, rel, h, sym)
1777 struct bfd_link_info * info ATTRIBUTE_UNUSED;
1778 Elf_Internal_Rela * rel;
1779 struct elf_link_hash_entry * h;
1780 Elf_Internal_Sym * sym;
1784 switch (ELF32_R_TYPE (rel->r_info))
1786 case R_CRIS_GNU_VTINHERIT:
1787 case R_CRIS_GNU_VTENTRY:
1791 switch (h->root.type)
1793 case bfd_link_hash_defined:
1794 case bfd_link_hash_defweak:
1795 return h->root.u.def.section;
1797 case bfd_link_hash_common:
1798 return h->root.u.c.p->section;
1807 return bfd_section_from_elf_index (abfd, sym->st_shndx);
1813 /* Update the got entry reference counts for the section being removed. */
1816 cris_elf_gc_sweep_hook (abfd, info, sec, relocs)
1817 bfd * abfd ATTRIBUTE_UNUSED;
1818 struct bfd_link_info * info ATTRIBUTE_UNUSED;
1819 asection * sec ATTRIBUTE_UNUSED;
1820 const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED;
1822 Elf_Internal_Shdr *symtab_hdr;
1823 struct elf_link_hash_entry **sym_hashes;
1824 bfd_signed_vma *local_got_refcounts;
1825 const Elf_Internal_Rela *rel, *relend;
1826 unsigned long r_symndx;
1827 struct elf_link_hash_entry *h;
1832 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1833 sym_hashes = elf_sym_hashes (abfd);
1834 local_got_refcounts = elf_local_got_refcounts (abfd);
1836 dynobj = elf_hash_table (info)->dynobj;
1840 sgot = bfd_get_section_by_name (dynobj, ".got");
1841 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1843 relend = relocs + sec->reloc_count;
1844 for (rel = relocs; rel < relend; rel++)
1846 switch (ELF32_R_TYPE (rel->r_info))
1850 r_symndx = ELF32_R_SYM (rel->r_info);
1851 if (r_symndx >= symtab_hdr->sh_info)
1853 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1854 if (h->got.refcount > 0)
1857 if (h->got.refcount == 0)
1859 /* We don't need the .got entry any more. */
1860 sgot->_raw_size -= 4;
1861 srelgot->_raw_size -= sizeof (Elf32_External_Rela);
1868 if (local_got_refcounts != NULL)
1870 if (local_got_refcounts[r_symndx] > 0)
1872 --local_got_refcounts[r_symndx];
1873 if (local_got_refcounts[r_symndx] == 0)
1875 /* We don't need the .got entry any more. */
1876 sgot->_raw_size -= 4;
1878 srelgot->_raw_size -= sizeof (Elf32_External_Rela);
1884 case R_CRIS_16_GOTPLT:
1885 case R_CRIS_32_GOTPLT:
1886 /* For local symbols, treat these like GOT relocs. */
1887 r_symndx = ELF32_R_SYM (rel->r_info);
1888 if (r_symndx < symtab_hdr->sh_info)
1889 goto local_got_reloc;
1891 case R_CRIS_32_PLT_GOTREL:
1892 /* FIXME: We don't garbage-collect away the .got section. */
1893 if (local_got_refcounts != NULL)
1894 local_got_refcounts[-1]--;
1897 case R_CRIS_8_PCREL:
1898 case R_CRIS_16_PCREL:
1899 case R_CRIS_32_PCREL:
1900 case R_CRIS_32_PLT_PCREL:
1901 r_symndx = ELF32_R_SYM (rel->r_info);
1902 if (r_symndx >= symtab_hdr->sh_info)
1904 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
1905 if (h->plt.refcount > 0)
1918 /* Make sure we emit a GOT entry if the symbol was supposed to have a PLT
1919 entry but we found we will not create any. Called when we find we will
1920 not have any PLT for this symbol, by for example
1921 elf_cris_adjust_dynamic_symbol when we're doing a proper dynamic link,
1922 or elf_cris_size_dynamic_sections if no dynamic sections will be
1923 created (we're only linking static objects). */
1926 elf_cris_adjust_gotplt_to_got (h, p)
1927 struct elf_cris_link_hash_entry *h;
1930 struct bfd_link_info *info = (struct bfd_link_info *) p;
1931 bfd *dynobj = elf_hash_table (info)->dynobj;
1933 BFD_ASSERT (dynobj != NULL);
1935 /* If nobody wanted a GOTPLT with this symbol, we're done. */
1936 if (h->gotplt_refcount <= 0)
1939 if (h->root.got.refcount > 0)
1941 /* There's a GOT entry for this symbol. Just adjust the refcount.
1942 Probably not necessary at this stage, but keeping it accurate
1943 helps avoiding surprises later. */
1944 h->root.got.refcount += h->gotplt_refcount;
1945 h->gotplt_refcount = -1;
1949 /* No GOT entry for this symbol. We need to create one. */
1950 asection *sgot = bfd_get_section_by_name (dynobj, ".got");
1952 = bfd_get_section_by_name (dynobj, ".rela.got");
1954 /* Put an accurate refcount there. */
1955 h->root.got.refcount = h->gotplt_refcount;
1957 h->gotplt_refcount = -1;
1959 /* We always have a .got section when there are dynamic
1961 BFD_ASSERT (sgot != NULL /* Surely have .got section. */);
1963 /* We might have had a PLT but with no GOT entry and
1964 further no GOT reloc section at all needed before.
1966 if (srelgot == NULL)
1968 srelgot = bfd_make_section (dynobj, ".rela.got");
1971 || !bfd_set_section_flags (dynobj, srelgot,
1976 | SEC_LINKER_CREATED
1978 || !bfd_set_section_alignment (dynobj, srelgot, 2))
1982 /* Allocate space in the .got section. */
1983 sgot->_raw_size += 4;
1985 /* Allocate relocation space. */
1986 srelgot->_raw_size += sizeof (Elf32_External_Rela);
1992 /* Try to fold PLT entries with GOT entries. There are two cases when we
1995 - When all PLT references are GOTPLT references, and there are GOT
1996 references. We don't have to generate a PLT at all.
1998 - When there are both (ordinary) PLT references and GOT references.
1999 We want to make the PLT reference use the ordinary GOT entry rather
2000 than a run-time dynamically resolved GOTPLT entry (since the GOT
2001 entry will have to be resolved at startup anyway).
2003 Though the latter case is handled when room for the PLT is allocated,
2006 Note that this function is called before symbols are forced local by
2007 version scripts. The differing cases are handled by
2008 elf_cris_hide_symbol. */
2011 elf_cris_try_fold_plt_to_got (h, p)
2012 struct elf_cris_link_hash_entry *h;
2015 struct bfd_link_info *info = (struct bfd_link_info *) p;
2017 /* If there are no GOT references for this symbol, we can't fold any
2018 other reference so there's nothing to do. Likewise if there are no
2019 PLT references; GOTPLT references included. */
2020 if (h->root.got.refcount <= 0 || h->root.plt.refcount <= 0)
2023 /* GOTPLT relocs are supposed to be included into the PLT refcount. */
2024 BFD_ASSERT (h->gotplt_refcount <= h->root.plt.refcount);
2026 if (h->gotplt_refcount == h->root.plt.refcount)
2028 /* The only PLT references are GOTPLT references, and there are GOT
2029 references. Convert PLT to GOT references. */
2030 if (! elf_cris_adjust_gotplt_to_got (h, info))
2033 /* Clear the PLT references, so no PLT will be created. */
2034 h->root.plt.offset = (bfd_vma) -1;
2040 /* Our own version of hide_symbol, so that we can adjust a GOTPLT reloc
2041 to use a GOT entry (and create one) rather than requiring a GOTPLT
2045 elf_cris_hide_symbol (info, h, force_local)
2046 struct bfd_link_info *info;
2047 struct elf_link_hash_entry *h;
2048 boolean force_local;
2050 elf_cris_adjust_gotplt_to_got ((struct elf_cris_link_hash_entry *) h, info);
2052 _bfd_elf_link_hash_hide_symbol (info, h, force_local);
2055 /* Adjust a symbol defined by a dynamic object and referenced by a
2056 regular object. The current definition is in some section of the
2057 dynamic object, but we're not including those sections. We have to
2058 change the definition to something the rest of the link can
2062 elf_cris_adjust_dynamic_symbol (info, h)
2063 struct bfd_link_info *info;
2064 struct elf_link_hash_entry *h;
2068 unsigned int power_of_two;
2070 dynobj = elf_hash_table (info)->dynobj;
2072 /* Make sure we know what is going on here. */
2073 BFD_ASSERT (dynobj != NULL
2074 && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)
2075 || h->weakdef != NULL
2076 || ((h->elf_link_hash_flags
2077 & ELF_LINK_HASH_DEF_DYNAMIC) != 0
2078 && (h->elf_link_hash_flags
2079 & ELF_LINK_HASH_REF_REGULAR) != 0
2080 && (h->elf_link_hash_flags
2081 & ELF_LINK_HASH_DEF_REGULAR) == 0)));
2083 /* If this is a function, put it in the procedure linkage table. We
2084 will fill in the contents of the procedure linkage table later,
2085 when we know the address of the .got section. */
2086 if (h->type == STT_FUNC
2087 || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0)
2090 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0
2091 && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0
2092 /* We must always create the plt entry if it was referenced by a
2093 PLT relocation. In this case we already recorded it as a
2095 /* FIXME: m68k and i386 differ here, for unclear reasons. */
2096 && h->dynindx == -1)
2098 /* This case can occur if we saw a PLT reloc in an input file,
2099 but the symbol was never referred to by a dynamic object. In
2100 such a case, we don't actually need to build a procedure
2101 linkage table, and we can just do a PC reloc instead, or
2102 change a .got.plt index to a .got index for GOTPLT relocs. */
2103 BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0);
2104 h->plt.offset = (bfd_vma) -1;
2107 elf_cris_adjust_gotplt_to_got ((struct
2108 elf_cris_link_hash_entry *) h,
2112 /* If there are only GOT references and GOTPLT references to this
2113 PLT entry, get rid of the PLT. */
2114 if (! elf_cris_try_fold_plt_to_got ((struct elf_cris_link_hash_entry *)
2118 /* GC or folding may have rendered this entry unused. */
2119 if (h->plt.refcount <= 0)
2121 h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT;
2122 h->plt.offset = (bfd_vma) -1;
2126 /* Make sure this symbol is output as a dynamic symbol. */
2127 if (h->dynindx == -1)
2129 if (! bfd_elf32_link_record_dynamic_symbol (info, h))
2133 s = bfd_get_section_by_name (dynobj, ".plt");
2134 BFD_ASSERT (s != NULL);
2136 /* If this is the first .plt entry, make room for the special
2138 if (s->_raw_size == 0)
2139 s->_raw_size += PLT_ENTRY_SIZE;
2141 /* If this symbol is not defined in a regular file, and we are
2142 not generating a shared library, then set the symbol to this
2143 location in the .plt. This is required to make function
2144 pointers compare as equal between the normal executable and
2145 the shared library. */
2147 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
2149 h->root.u.def.section = s;
2150 h->root.u.def.value = s->_raw_size;
2153 /* If there's already a GOT entry, use that, not a .got.plt. A
2154 GOT field still has a reference count when we get here; it's
2155 not yet changed to an offset. */
2156 if (h->got.refcount > 0)
2158 h->got.refcount += h->plt.refcount;
2160 /* Mark the PLT offset to use the GOT entry by setting the low
2161 bit in the plt offset; it is always a multiple of
2163 BFD_ASSERT ((s->_raw_size & 3) == 0);
2165 /* Change the PLT refcount to an offset. */
2166 h->plt.offset = s->_raw_size;
2168 /* By not setting gotplt_offset (i.e. it remains at 0), we signal
2169 that the got entry should be used instead. */
2170 BFD_ASSERT (((struct elf_cris_link_hash_entry *)
2171 h)->gotplt_offset == 0);
2173 /* Make room for this entry. */
2174 s->_raw_size += PLT_ENTRY_SIZE;
2179 /* No GOT reference for this symbol; prepare for an ordinary PLT. */
2180 h->plt.offset = s->_raw_size;
2182 /* Make room for this entry. */
2183 s->_raw_size += PLT_ENTRY_SIZE;
2185 /* We also need to make an entry in the .got.plt section, which
2186 will be placed in the .got section by the linker script. */
2187 ((struct elf_cris_link_hash_entry *) h)->gotplt_offset
2188 = elf_cris_hash_table (info)->next_gotplt_entry;
2189 elf_cris_hash_table (info)->next_gotplt_entry += 4;
2191 s = bfd_get_section_by_name (dynobj, ".got.plt");
2192 BFD_ASSERT (s != NULL);
2195 /* We also need to make an entry in the .rela.plt section. */
2197 s = bfd_get_section_by_name (dynobj, ".rela.plt");
2198 BFD_ASSERT (s != NULL);
2199 s->_raw_size += sizeof (Elf32_External_Rela);
2204 /* Reinitialize the plt offset now that it is not used as a reference
2206 h->plt.offset = (bfd_vma) -1;
2208 /* If this is a weak symbol, and there is a real definition, the
2209 processor independent code will have arranged for us to see the
2210 real definition first, and we can just use the same value. */
2211 if (h->weakdef != NULL)
2213 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
2214 || h->weakdef->root.type == bfd_link_hash_defweak);
2215 h->root.u.def.section = h->weakdef->root.u.def.section;
2216 h->root.u.def.value = h->weakdef->root.u.def.value;
2220 /* This is a reference to a symbol defined by a dynamic object which
2221 is not a function. */
2223 /* If we are creating a shared library, we must presume that the
2224 only references to the symbol are via the global offset table.
2225 For such cases we need not do anything here; the relocations will
2226 be handled correctly by relocate_section. */
2230 /* If there are no references to this symbol that do not use the
2231 GOT, we don't need to generate a copy reloc. */
2232 if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0)
2235 /* We must allocate the symbol in our .dynbss section, which will
2236 become part of the .bss section of the executable. There will be
2237 an entry for this symbol in the .dynsym section. The dynamic
2238 object will contain position independent code, so all references
2239 from the dynamic object to this symbol will go through the global
2240 offset table. The dynamic linker will use the .dynsym entry to
2241 determine the address it must put in the global offset table, so
2242 both the dynamic object and the regular object will refer to the
2243 same memory location for the variable. */
2245 s = bfd_get_section_by_name (dynobj, ".dynbss");
2246 BFD_ASSERT (s != NULL);
2248 /* We must generate a R_CRIS_COPY reloc to tell the dynamic linker to
2249 copy the initial value out of the dynamic object and into the
2250 runtime process image. We need to remember the offset into the
2251 .rela.bss section we are going to use. */
2252 if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
2256 srel = bfd_get_section_by_name (dynobj, ".rela.bss");
2257 BFD_ASSERT (srel != NULL);
2258 srel->_raw_size += sizeof (Elf32_External_Rela);
2259 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY;
2262 /* Historic precedent: m68k and i386 allow max 8-byte alignment for the
2263 thing to copy; so do we. */
2265 /* We need to figure out the alignment required for this symbol. I
2266 have no idea how ELF linkers handle this. */
2267 power_of_two = bfd_log2 (h->size);
2268 if (power_of_two > 3)
2271 /* Apply the required alignment. */
2272 s->_raw_size = BFD_ALIGN (s->_raw_size,
2273 (bfd_size_type) (1 << power_of_two));
2274 if (power_of_two > bfd_get_section_alignment (dynobj, s))
2276 if (!bfd_set_section_alignment (dynobj, s, power_of_two))
2280 /* Define the symbol as being at this point in the section. */
2281 h->root.u.def.section = s;
2282 h->root.u.def.value = s->_raw_size;
2284 /* Increment the section size to make room for the symbol. */
2285 s->_raw_size += h->size;
2290 /* Look through the relocs for a section during the first phase. */
2293 cris_elf_check_relocs (abfd, info, sec, relocs)
2295 struct bfd_link_info *info;
2297 const Elf_Internal_Rela *relocs;
2300 Elf_Internal_Shdr *symtab_hdr;
2301 struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
2302 bfd_signed_vma *local_got_refcounts;
2303 const Elf_Internal_Rela *rel;
2304 const Elf_Internal_Rela *rel_end;
2309 if (info->relocateable)
2312 dynobj = elf_hash_table (info)->dynobj;
2313 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2314 sym_hashes = elf_sym_hashes (abfd);
2315 sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym);
2316 local_got_refcounts = elf_local_got_refcounts (abfd);
2322 if (!elf_bad_symtab (abfd))
2323 sym_hashes_end -= symtab_hdr->sh_info;
2325 rel_end = relocs + sec->reloc_count;
2326 for (rel = relocs; rel < rel_end; rel++)
2328 struct elf_link_hash_entry *h;
2329 unsigned long r_symndx;
2330 enum elf_cris_reloc_type r_type;
2332 r_symndx = ELF32_R_SYM (rel->r_info);
2333 if (r_symndx < symtab_hdr->sh_info)
2336 h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2338 r_type = ELF32_R_TYPE (rel->r_info);
2340 /* Some relocs require linker-created sections; we need to hang them
2341 on the first input bfd we found that contained dynamic relocs. */
2346 case R_CRIS_32_GOTREL:
2347 case R_CRIS_32_PLT_GOTREL:
2348 case R_CRIS_32_PLT_PCREL:
2349 case R_CRIS_16_GOTPLT:
2350 case R_CRIS_32_GOTPLT:
2353 elf_hash_table (info)->dynobj = dynobj = abfd;
2355 /* Create the .got section, so we can assume it's always
2356 present whenever there's a dynobj. */
2357 if (!_bfd_elf_create_got_section (dynobj, info))
2366 /* Some relocs require a global offset table (but perhaps not a
2367 specific GOT entry). */
2372 case R_CRIS_32_GOTREL:
2373 case R_CRIS_32_PLT_GOTREL:
2375 sgot = bfd_get_section_by_name (dynobj, ".got");
2377 if (local_got_refcounts == NULL)
2381 /* We use index local_got_refcounts[-1] to count all
2382 GOT-relative relocations that do not have explicit
2384 amt = symtab_hdr->sh_info + 1;
2385 amt *= sizeof (bfd_signed_vma);
2386 local_got_refcounts = ((bfd_signed_vma *) bfd_zalloc (abfd, amt));
2387 if (local_got_refcounts == NULL)
2390 local_got_refcounts++;
2391 elf_local_got_refcounts (abfd) = local_got_refcounts;
2401 case R_CRIS_16_GOTPLT:
2402 case R_CRIS_32_GOTPLT:
2403 /* Mark that we need a GOT entry if the PLT entry (and its GOT
2404 entry) is eliminated. We can only do this for a non-local
2408 ((struct elf_cris_link_hash_entry *) h)->gotplt_refcount++;
2409 goto handle_gotplt_reloc;
2411 /* If h is NULL then this is a local symbol, and we must make a
2412 GOT entry for it, so handle it like a GOT reloc. */
2417 /* This symbol requires a global offset table entry. */
2420 && (h != NULL || info->shared))
2422 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2423 if (srelgot == NULL)
2425 srelgot = bfd_make_section (dynobj, ".rela.got");
2427 || !bfd_set_section_flags (dynobj, srelgot,
2432 | SEC_LINKER_CREATED
2434 || !bfd_set_section_alignment (dynobj, srelgot, 2))
2441 if (h->got.refcount == 0)
2443 /* Make sure this symbol is output as a dynamic symbol. */
2444 if (h->dynindx == -1)
2446 if (!bfd_elf32_link_record_dynamic_symbol (info, h))
2450 /* Allocate space in the .got section. */
2451 sgot->_raw_size += 4;
2452 /* Allocate relocation space. */
2453 srelgot->_raw_size += sizeof (Elf32_External_Rela);
2459 /* This is a global offset table entry for a local symbol. */
2460 if (local_got_refcounts[r_symndx] == 0)
2462 sgot->_raw_size += 4;
2465 /* If we are generating a shared object, we need to
2466 output a R_CRIS_RELATIVE reloc so that the dynamic
2467 linker can adjust this GOT entry. */
2468 srelgot->_raw_size += sizeof (Elf32_External_Rela);
2471 local_got_refcounts[r_symndx]++;
2475 case R_CRIS_32_GOTREL:
2476 /* This reference requires a global offset table.
2477 FIXME: The actual refcount isn't used currently; the .got
2478 section can't be removed if there were any references in the
2480 local_got_refcounts[-1]++;
2483 handle_gotplt_reloc:
2485 case R_CRIS_32_PLT_GOTREL:
2486 /* This reference requires a global offset table. */
2487 local_got_refcounts[-1]++;
2490 case R_CRIS_32_PLT_PCREL:
2491 /* This symbol requires a procedure linkage table entry. We
2492 actually build the entry in adjust_dynamic_symbol,
2493 because this might be a case of linking PIC code which is
2494 never referenced by a dynamic object, in which case we
2495 don't need to generate a procedure linkage table entry
2498 /* If this is a local symbol, we resolve it directly without
2499 creating a procedure linkage table entry. */
2503 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2510 /* Let's help debug shared library creation. Any of these
2511 relocs can be used in shared libs, but pages containing them
2512 cannot be shared. Don't warn for sections we don't care
2513 about, such as debug sections or non-constant sections. We
2514 can't help tables of (global) function pointers, for example,
2515 though they must be emitted in a data section to avoid having
2516 impure text sections. */
2518 && (sec->flags & SEC_ALLOC) != 0
2519 && (sec->flags & SEC_READONLY) != 0)
2521 /* FIXME: How do we make this optionally a warning only? */
2522 (*_bfd_error_handler)
2523 (_("%s, section %s:\n relocation %s should not be used in a shared object; recompile with -fPIC"),
2524 bfd_archive_filename (abfd),
2526 cris_elf_howto_table[r_type].name);
2530 case R_CRIS_8_PCREL:
2531 case R_CRIS_16_PCREL:
2532 case R_CRIS_32_PCREL:
2535 h->elf_link_hash_flags |= ELF_LINK_NON_GOT_REF;
2537 /* Make sure a plt entry is created for this symbol if it
2538 turns out to be a function defined by a dynamic object. */
2542 /* If we are creating a shared library and this is not a local
2543 symbol, we need to copy the reloc into the shared library.
2544 However when linking with -Bsymbolic and this is a global
2545 symbol which is defined in an object we are including in the
2546 link (i.e., DEF_REGULAR is set), then we can resolve the
2547 reloc directly. At this point we have not seen all the input
2548 files, so it is possible that DEF_REGULAR is not set now but
2549 will be set later (it is never cleared). In case of a weak
2550 definition, DEF_REGULAR may be cleared later by a strong
2551 definition in a shared library. We account for that
2552 possibility below by storing information in the relocs_copied
2553 field of the hash table entry. A similar situation occurs
2554 when creating shared libraries and symbol visibility changes
2555 render the symbol local. */
2557 /* No need to do anything if we're not creating a shared object. */
2561 /* We don't need to handle relocs into sections not going into
2562 the "real" output. */
2563 if ((sec->flags & SEC_ALLOC) == 0)
2566 /* We can only eliminate PC-relative relocs. */
2567 if (r_type == R_CRIS_8_PCREL
2568 || r_type == R_CRIS_16_PCREL
2569 || r_type == R_CRIS_32_PCREL)
2571 /* If the symbol is local, then we can eliminate the reloc. */
2575 /* If this is with -Bsymbolic and the symbol isn't weak, and
2576 is defined by an ordinary object (the ones we include in
2577 this shared library) then we can also eliminate the
2578 reloc. See comment above for more eliminable cases which
2579 we can't identify at this time. */
2581 && h->root.type != bfd_link_hash_defweak
2582 && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0)
2586 /* We create a reloc section in dynobj and make room for this
2592 name = (bfd_elf_string_from_elf_section
2594 elf_elfheader (abfd)->e_shstrndx,
2595 elf_section_data (sec)->rel_hdr.sh_name));
2599 BFD_ASSERT (strncmp (name, ".rela", 5) == 0
2600 && strcmp (bfd_get_section_name (abfd, sec),
2603 sreloc = bfd_get_section_by_name (dynobj, name);
2606 sreloc = bfd_make_section (dynobj, name);
2608 || !bfd_set_section_flags (dynobj, sreloc,
2613 | SEC_LINKER_CREATED
2615 || !bfd_set_section_alignment (dynobj, sreloc, 2))
2618 if (sec->flags & SEC_READONLY)
2619 info->flags |= DF_TEXTREL;
2622 sreloc->_raw_size += sizeof (Elf32_External_Rela);
2624 /* If we are linking with -Bsymbolic, we count the number of PC
2625 relative relocations we have entered for this symbol, so that
2626 we can discard them again if the symbol is later defined by a
2627 regular object. We know that h is really a pointer to an
2628 elf_cris_link_hash_entry. */
2629 if ((r_type == R_CRIS_8_PCREL
2630 || r_type == R_CRIS_16_PCREL
2631 || r_type == R_CRIS_32_PCREL)
2634 struct elf_cris_link_hash_entry *eh;
2635 struct elf_cris_pcrel_relocs_copied *p;
2637 eh = (struct elf_cris_link_hash_entry *) h;
2639 for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next)
2640 if (p->section == sreloc)
2645 p = ((struct elf_cris_pcrel_relocs_copied *)
2646 bfd_alloc (dynobj, (bfd_size_type) sizeof *p));
2649 p->next = eh->pcrel_relocs_copied;
2650 eh->pcrel_relocs_copied = p;
2651 p->section = sreloc;
2659 /* This relocation describes the C++ object vtable hierarchy.
2660 Reconstruct it for later use during GC. */
2661 case R_CRIS_GNU_VTINHERIT:
2662 if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
2666 /* This relocation describes which C++ vtable entries are actually
2667 used. Record for later use during GC. */
2668 case R_CRIS_GNU_VTENTRY:
2669 if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend))
2674 /* Other relocs do not appear here. */
2675 bfd_set_error (bfd_error_bad_value);
2683 /* Set the sizes of the dynamic sections. */
2686 elf_cris_size_dynamic_sections (output_bfd, info)
2687 bfd *output_bfd ATTRIBUTE_UNUSED;
2688 struct bfd_link_info *info;
2695 dynobj = elf_hash_table (info)->dynobj;
2696 BFD_ASSERT (dynobj != NULL);
2698 if (elf_hash_table (info)->dynamic_sections_created)
2700 /* Set the contents of the .interp section to the interpreter. */
2703 s = bfd_get_section_by_name (dynobj, ".interp");
2704 BFD_ASSERT (s != NULL);
2705 s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER;
2706 s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2711 /* Adjust all expected GOTPLT uses to use a GOT entry instead. */
2712 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2713 elf_cris_adjust_gotplt_to_got,
2716 /* We may have created entries in the .rela.got section.
2717 However, if we are not creating the dynamic sections, we will
2718 not actually use these entries. Reset the size of .rela.got,
2719 which will cause it to get stripped from the output file
2721 s = bfd_get_section_by_name (dynobj, ".rela.got");
2726 /* If this is a -Bsymbolic shared link, then we need to discard all PC
2727 relative relocs against symbols defined in a regular object. We
2728 allocated space for them in the check_relocs routine, but we will not
2729 fill them in in the relocate_section routine. We also discard space
2730 for relocs that have become for local symbols due to symbol
2731 visibility changes. For programs, we discard space for relocs for
2732 symbols not referenced by any dynamic object. */
2734 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2735 elf_cris_discard_excess_dso_dynamics,
2738 elf_cris_link_hash_traverse (elf_cris_hash_table (info),
2739 elf_cris_discard_excess_program_dynamics,
2742 /* The check_relocs and adjust_dynamic_symbol entry points have
2743 determined the sizes of the various dynamic sections. Allocate
2747 for (s = dynobj->sections; s != NULL; s = s->next)
2752 if ((s->flags & SEC_LINKER_CREATED) == 0)
2755 /* It's OK to base decisions on the section name, because none
2756 of the dynobj section names depend upon the input files. */
2757 name = bfd_get_section_name (dynobj, s);
2761 if (strcmp (name, ".plt") == 0)
2763 if (s->_raw_size == 0)
2765 /* Strip this section if we don't need it; see the
2771 /* Remember whether there is a PLT. */
2775 else if (strncmp (name, ".rela", 5) == 0)
2777 if (s->_raw_size == 0)
2779 /* If we don't need this section, strip it from the
2780 output file. This is mostly to handle .rela.bss and
2781 .rela.plt. We must create both sections in
2782 create_dynamic_sections, because they must be created
2783 before the linker maps input sections to output
2784 sections. The linker does that before
2785 adjust_dynamic_symbol is called, and it is that
2786 function which decides whether anything needs to go
2787 into these sections. */
2792 /* Remember whether there are any reloc sections other
2794 if (strcmp (name, ".rela.plt") != 0)
2797 /* We use the reloc_count field as a counter if we need
2798 to copy relocs into the output file. */
2802 else if (strncmp (name, ".got", 4) != 0)
2804 /* It's not one of our sections, so don't allocate space. */
2810 _bfd_strip_section_from_output (info, s);
2814 /* Allocate memory for the section contents. We use bfd_zalloc here
2815 in case unused entries are not reclaimed before the section's
2816 contents are written out. This should not happen, but this way
2817 if it does, we will not write out garbage. For reloc sections,
2818 this will make entries have the type R_CRIS_NONE. */
2819 s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size);
2820 if (s->contents == NULL && s->_raw_size != 0)
2824 if (elf_hash_table (info)->dynamic_sections_created)
2826 /* Add some entries to the .dynamic section. We fill in the
2827 values later, in elf_cris_finish_dynamic_sections, but we
2828 must add the entries now so that we get the correct size for
2829 the .dynamic section. The DT_DEBUG entry is filled in by the
2830 dynamic linker and used by the debugger. */
2831 #define add_dynamic_entry(TAG, VAL) \
2832 bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
2836 if (!add_dynamic_entry (DT_DEBUG, 0))
2842 if (!add_dynamic_entry (DT_PLTGOT, 0)
2843 || !add_dynamic_entry (DT_PLTRELSZ, 0)
2844 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2845 || !add_dynamic_entry (DT_JMPREL, 0))
2851 if (!add_dynamic_entry (DT_RELA, 0)
2852 || !add_dynamic_entry (DT_RELASZ, 0)
2853 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2857 if ((info->flags & DF_TEXTREL) != 0)
2859 if (!add_dynamic_entry (DT_TEXTREL, 0))
2861 info->flags |= DF_TEXTREL;
2864 #undef add_dynamic_entry
2869 /* This function is called via elf_cris_link_hash_traverse if we are
2870 creating a shared object. In the -Bsymbolic case, it discards the
2871 space allocated to copy PC relative relocs against symbols which
2872 are defined in regular objects. For the normal non-symbolic case,
2873 we also discard space for relocs that have become local due to
2874 symbol visibility changes. We allocated space for them in the
2875 check_relocs routine, but we won't fill them in in the
2876 relocate_section routine. */
2879 elf_cris_discard_excess_dso_dynamics (h, inf)
2880 struct elf_cris_link_hash_entry *h;
2883 struct elf_cris_pcrel_relocs_copied *s;
2884 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2886 /* If a symbol has been forced local or we have found a regular
2887 definition for the symbolic link case, then we won't be needing
2889 if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0
2890 && ((h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0
2893 for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
2894 s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
2900 /* This function is called via elf_cris_link_hash_traverse if we are *not*
2901 creating a shared object. We discard space for relocs for symbols put
2902 in the .got, but which we found we do not have to resolve at run-time. */
2905 elf_cris_discard_excess_program_dynamics (h, inf)
2906 struct elf_cris_link_hash_entry *h;
2909 struct bfd_link_info *info = (struct bfd_link_info *) inf;
2911 /* If we're not creating a shared library and have a symbol which is
2912 referred to by .got references, but the symbol is defined locally,
2913 (or rather, not referred to by a DSO and not defined by a DSO) then
2914 lose the reloc for the .got (don't allocate room for it). */
2915 if ((h->root.elf_link_hash_flags
2916 & (ELF_LINK_HASH_REF_DYNAMIC | ELF_LINK_HASH_DEF_DYNAMIC)) == 0)
2918 if (h->root.got.refcount > 0
2919 /* The size of this section is only valid and in sync with the
2920 various reference counts if we do dynamic; don't decrement it
2922 && elf_hash_table (info)->dynamic_sections_created)
2924 bfd *dynobj = elf_hash_table (info)->dynobj;
2927 BFD_ASSERT (dynobj != NULL);
2929 srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2931 BFD_ASSERT (srelgot != NULL);
2933 srelgot->_raw_size -= sizeof (Elf32_External_Rela);
2936 /* If the locally-defined symbol isn't used by a DSO, then we don't
2937 have to export it as a dynamic symbol. This was already done for
2938 functions; doing this for all symbols would presumably not
2939 introduce new problems. Of course we don't do this if we're
2940 exporting all dynamic symbols. */
2941 if (! info->export_dynamic)
2943 h->root.dynindx = -1;
2944 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
2945 h->root.dynstr_index);
2952 /* Reject a file depending on presence and expectation of prefixed
2953 underscores on symbols. */
2956 cris_elf_object_p (abfd)
2959 if ((elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE))
2960 return (bfd_get_symbol_leading_char (abfd) == '_');
2962 return (bfd_get_symbol_leading_char (abfd) == 0);
2965 /* Mark presence or absence of leading underscore. */
2968 cris_elf_final_write_processing (abfd, linker)
2970 boolean linker ATTRIBUTE_UNUSED;
2972 if (bfd_get_symbol_leading_char (abfd) == '_')
2973 elf_elfheader (abfd)->e_flags |= EF_CRIS_UNDERSCORE;
2975 elf_elfheader (abfd)->e_flags &= ~EF_CRIS_UNDERSCORE;
2978 /* Display the flags field. */
2981 cris_elf_print_private_bfd_data (abfd, ptr)
2985 FILE *file = (FILE *) ptr;
2987 BFD_ASSERT (abfd != NULL && ptr != NULL)
2989 _bfd_elf_print_private_bfd_data (abfd, ptr);
2991 fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
2993 if (elf_elfheader (abfd)->e_flags & EF_CRIS_UNDERSCORE)
2994 fprintf (file, _(" [symbols have a _ prefix]"));
3000 /* Don't mix files with and without a leading underscore. */
3003 cris_elf_merge_private_bfd_data (ibfd, obfd)
3007 flagword old_flags, new_flags;
3009 if (_bfd_generic_verify_endian_match (ibfd, obfd) == false)
3012 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3013 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3016 if (! elf_flags_init (obfd))
3018 /* This happens when ld starts out with a 'blank' output file. */
3019 elf_flags_init (obfd) = true;
3021 /* Set flags according to current bfd_target. */
3022 cris_elf_final_write_processing (obfd, false);
3025 old_flags = elf_elfheader (obfd)->e_flags;
3026 new_flags = elf_elfheader (ibfd)->e_flags;
3028 /* Is this good or bad? We'll follow with other excluding flags. */
3029 if ((old_flags & EF_CRIS_UNDERSCORE) != (new_flags & EF_CRIS_UNDERSCORE))
3031 (*_bfd_error_handler)
3032 ((new_flags & EF_CRIS_UNDERSCORE)
3033 ? _("%s: uses _-prefixed symbols, but writing file with non-prefixed symbols")
3034 : _("%s: uses non-prefixed symbols, but writing file with _-prefixed symbols"),
3035 bfd_archive_filename (ibfd));
3036 bfd_set_error (bfd_error_bad_value);
3044 static enum elf_reloc_type_class
3045 elf_cris_reloc_type_class (rela)
3046 const Elf_Internal_Rela *rela;
3048 switch ((int) ELF32_R_TYPE (rela->r_info))
3050 case R_CRIS_RELATIVE:
3051 return reloc_class_relative;
3052 case R_CRIS_JUMP_SLOT:
3053 return reloc_class_plt;
3055 return reloc_class_copy;
3057 return reloc_class_normal;
3061 #define ELF_ARCH bfd_arch_cris
3062 #define ELF_MACHINE_CODE EM_CRIS
3063 #define ELF_MAXPAGESIZE 0x2000
3065 #define TARGET_LITTLE_SYM bfd_elf32_cris_vec
3066 #define TARGET_LITTLE_NAME "elf32-cris"
3067 #define elf_symbol_leading_char 0
3069 #define elf_info_to_howto_rel NULL
3070 #define elf_info_to_howto cris_info_to_howto_rela
3071 #define elf_backend_relocate_section cris_elf_relocate_section
3072 #define elf_backend_gc_mark_hook cris_elf_gc_mark_hook
3073 #define elf_backend_gc_sweep_hook cris_elf_gc_sweep_hook
3074 #define elf_backend_check_relocs cris_elf_check_relocs
3075 #define elf_backend_grok_prstatus cris_elf_grok_prstatus
3076 #define elf_backend_grok_psinfo cris_elf_grok_psinfo
3078 #define elf_backend_can_gc_sections 1
3079 #define elf_backend_can_refcount 1
3081 #define elf_backend_object_p cris_elf_object_p
3082 #define elf_backend_final_write_processing \
3083 cris_elf_final_write_processing
3084 #define bfd_elf32_bfd_print_private_bfd_data \
3085 cris_elf_print_private_bfd_data
3086 #define bfd_elf32_bfd_merge_private_bfd_data \
3087 cris_elf_merge_private_bfd_data
3089 #define bfd_elf32_bfd_reloc_type_lookup cris_reloc_type_lookup
3091 #define bfd_elf32_bfd_link_hash_table_create \
3092 elf_cris_link_hash_table_create
3093 #define elf_backend_adjust_dynamic_symbol \
3094 elf_cris_adjust_dynamic_symbol
3095 #define elf_backend_size_dynamic_sections \
3096 elf_cris_size_dynamic_sections
3097 #define elf_backend_finish_dynamic_symbol \
3098 elf_cris_finish_dynamic_symbol
3099 #define elf_backend_finish_dynamic_sections \
3100 elf_cris_finish_dynamic_sections
3101 #define elf_backend_create_dynamic_sections \
3102 _bfd_elf_create_dynamic_sections
3103 #define bfd_elf32_bfd_final_link \
3104 _bfd_elf32_gc_common_final_link
3105 #define elf_backend_hide_symbol elf_cris_hide_symbol
3106 #define elf_backend_reloc_type_class elf_cris_reloc_type_class
3108 #define elf_backend_want_got_plt 1
3109 #define elf_backend_plt_readonly 1
3110 #define elf_backend_want_plt_sym 0
3111 #define elf_backend_got_header_size 12
3112 #define elf_backend_plt_header_size PLT_ENTRY_SIZE
3114 /* Later, we my want to optimize RELA entries into REL entries for dynamic
3115 linking and libraries (if it's a win of any significance). Until then,
3116 take the easy route. */
3117 #define elf_backend_may_use_rel_p 0
3118 #define elf_backend_may_use_rela_p 1
3120 #include "elf32-target.h"
3122 #define INCLUDED_TARGET_FILE
3124 #undef TARGET_LITTLE_SYM
3125 #undef TARGET_LITTLE_NAME
3126 #undef elf_symbol_leading_char
3128 #define TARGET_LITTLE_SYM bfd_elf32_us_cris_vec
3129 #define TARGET_LITTLE_NAME "elf32-us-cris"
3130 #define elf_symbol_leading_char '_'
3132 #include "elf32-target.h"
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